]>
Commit | Line | Data |
---|---|---|
1 | // SPDX-License-Identifier: GPL-2.0 | |
2 | /* | |
3 | * 32 bit compatibility code for System V IPC | |
4 | * | |
5 | * Copyright (C) 1997,1998 Jakub Jelinek (jj@sunsite.mff.cuni.cz) | |
6 | * Copyright (C) 1997 David S. Miller (davem@caip.rutgers.edu) | |
7 | * Copyright (C) 1999 Arun Sharma <arun.sharma@intel.com> | |
8 | * Copyright (C) 2000 VA Linux Co | |
9 | * Copyright (C) 2000 Don Dugger <n0ano@valinux.com> | |
10 | * Copyright (C) 2000 Hewlett-Packard Co. | |
11 | * Copyright (C) 2000 David Mosberger-Tang <davidm@hpl.hp.com> | |
12 | * Copyright (C) 2000 Gerhard Tonn (ton@de.ibm.com) | |
13 | * Copyright (C) 2000-2002 Andi Kleen, SuSE Labs (x86-64 port) | |
14 | * Copyright (C) 2000 Silicon Graphics, Inc. | |
15 | * Copyright (C) 2001 IBM | |
16 | * Copyright (C) 2004 IBM Deutschland Entwicklung GmbH, IBM Corporation | |
17 | * Copyright (C) 2004 Arnd Bergmann (arnd@arndb.de) | |
18 | * | |
19 | * This code is collected from the versions for sparc64, mips64, s390x, ia64, | |
20 | * ppc64 and x86_64, all of which are based on the original sparc64 version | |
21 | * by Jakub Jelinek. | |
22 | * | |
23 | */ | |
24 | #include <linux/compat.h> | |
25 | #include <linux/errno.h> | |
26 | #include <linux/highuid.h> | |
27 | #include <linux/init.h> | |
28 | #include <linux/msg.h> | |
29 | #include <linux/shm.h> | |
30 | #include <linux/syscalls.h> | |
31 | #include <linux/ptrace.h> | |
32 | ||
33 | #include <linux/mutex.h> | |
34 | #include <linux/uaccess.h> | |
35 | ||
36 | #include "util.h" | |
37 | ||
38 | int get_compat_ipc64_perm(struct ipc64_perm *to, | |
39 | struct compat_ipc64_perm __user *from) | |
40 | { | |
41 | struct compat_ipc64_perm v; | |
42 | if (copy_from_user(&v, from, sizeof(v))) | |
43 | return -EFAULT; | |
44 | to->uid = v.uid; | |
45 | to->gid = v.gid; | |
46 | to->mode = v.mode; | |
47 | return 0; | |
48 | } | |
49 | ||
50 | int get_compat_ipc_perm(struct ipc64_perm *to, | |
51 | struct compat_ipc_perm __user *from) | |
52 | { | |
53 | struct compat_ipc_perm v; | |
54 | if (copy_from_user(&v, from, sizeof(v))) | |
55 | return -EFAULT; | |
56 | to->uid = v.uid; | |
57 | to->gid = v.gid; | |
58 | to->mode = v.mode; | |
59 | return 0; | |
60 | } | |
61 | ||
62 | void to_compat_ipc64_perm(struct compat_ipc64_perm *to, struct ipc64_perm *from) | |
63 | { | |
64 | to->key = from->key; | |
65 | to->uid = from->uid; | |
66 | to->gid = from->gid; | |
67 | to->cuid = from->cuid; | |
68 | to->cgid = from->cgid; | |
69 | to->mode = from->mode; | |
70 | to->seq = from->seq; | |
71 | } | |
72 | ||
73 | void to_compat_ipc_perm(struct compat_ipc_perm *to, struct ipc64_perm *from) | |
74 | { | |
75 | to->key = from->key; | |
76 | SET_UID(to->uid, from->uid); | |
77 | SET_GID(to->gid, from->gid); | |
78 | SET_UID(to->cuid, from->cuid); | |
79 | SET_GID(to->cgid, from->cgid); | |
80 | to->mode = from->mode; | |
81 | to->seq = from->seq; | |
82 | } |