blob: 792c0a611a6d115a5a272ca748af6c1804c762ef [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001/* compat.c: 32-bit compatibility syscall for 64-bit systems
2 *
David Howells3e301482005-06-23 22:00:56 -07003 * Copyright (C) 2004-5 Red Hat, Inc. All Rights Reserved.
Linus Torvalds1da177e2005-04-16 15:20:36 -07004 * Written by David Howells (dhowells@redhat.com)
5 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License
8 * as published by the Free Software Foundation; either version
9 * 2 of the License, or (at your option) any later version.
10 */
11
Linus Torvalds1da177e2005-04-16 15:20:36 -070012#include <linux/syscalls.h>
13#include <linux/keyctl.h>
14#include <linux/compat.h>
15#include "internal.h"
16
17/*****************************************************************************/
18/*
19 * the key control system call, 32-bit compatibility version for 64-bit archs
20 * - this should only be called if the 64-bit arch uses weird pointers in
21 * 32-bit mode or doesn't guarantee that the top 32-bits of the argument
22 * registers on taking a 32-bit syscall are zero
23 * - if you can, you should call sys_keyctl directly
24 */
25asmlinkage long compat_sys_keyctl(u32 option,
David Howells3e301482005-06-23 22:00:56 -070026 u32 arg2, u32 arg3, u32 arg4, u32 arg5)
Linus Torvalds1da177e2005-04-16 15:20:36 -070027{
28 switch (option) {
29 case KEYCTL_GET_KEYRING_ID:
30 return keyctl_get_keyring_ID(arg2, arg3);
31
32 case KEYCTL_JOIN_SESSION_KEYRING:
33 return keyctl_join_session_keyring(compat_ptr(arg2));
34
35 case KEYCTL_UPDATE:
36 return keyctl_update_key(arg2, compat_ptr(arg3), arg4);
37
38 case KEYCTL_REVOKE:
39 return keyctl_revoke_key(arg2);
40
41 case KEYCTL_DESCRIBE:
42 return keyctl_describe_key(arg2, compat_ptr(arg3), arg4);
43
44 case KEYCTL_CLEAR:
45 return keyctl_keyring_clear(arg2);
46
47 case KEYCTL_LINK:
48 return keyctl_keyring_link(arg2, arg3);
49
50 case KEYCTL_UNLINK:
51 return keyctl_keyring_unlink(arg2, arg3);
52
53 case KEYCTL_SEARCH:
54 return keyctl_keyring_search(arg2, compat_ptr(arg3),
55 compat_ptr(arg4), arg5);
56
57 case KEYCTL_READ:
58 return keyctl_read_key(arg2, compat_ptr(arg3), arg4);
59
60 case KEYCTL_CHOWN:
61 return keyctl_chown_key(arg2, arg3, arg4);
62
63 case KEYCTL_SETPERM:
64 return keyctl_setperm_key(arg2, arg3);
65
66 case KEYCTL_INSTANTIATE:
67 return keyctl_instantiate_key(arg2, compat_ptr(arg3), arg4,
68 arg5);
69
70 case KEYCTL_NEGATE:
71 return keyctl_negate_key(arg2, arg3, arg4);
72
David Howells3e301482005-06-23 22:00:56 -070073 case KEYCTL_SET_REQKEY_KEYRING:
74 return keyctl_set_reqkey_keyring(arg2);
75
David Howells017679c2006-01-08 01:02:43 -080076 case KEYCTL_SET_TIMEOUT:
77 return keyctl_set_timeout(arg2, arg3);
78
David Howellsb5f545c2006-01-08 01:02:47 -080079 case KEYCTL_ASSUME_AUTHORITY:
80 return keyctl_assume_authority(arg2);
81
David Howells70a5bb72008-04-29 01:01:26 -070082 case KEYCTL_GET_SECURITY:
83 return keyctl_get_security(arg2, compat_ptr(arg3), arg4);
84
David Howellsee18d642009-09-02 09:14:21 +010085 case KEYCTL_SESSION_TO_PARENT:
86 return keyctl_session_to_parent();
87
Linus Torvalds1da177e2005-04-16 15:20:36 -070088 default:
89 return -EOPNOTSUPP;
90 }
91
92} /* end compat_sys_keyctl() */