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1 | /* compat.c: 32-bit compatibility syscall for 64-bit systems |
2 | * |
3 | * Copyright (C) 2004-5 Red Hat, Inc. All Rights Reserved. |
4 | * 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 | |
12 | #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 | */ |
25 | asmlinkage long compat_sys_keyctl(u32 option, |
26 | u32 arg2, u32 arg3, u32 arg4, u32 arg5) |
27 | { |
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 | |
73 | case KEYCTL_SET_REQKEY_KEYRING: |
74 | return keyctl_set_reqkey_keyring(arg2); |
75 | |
76 | case KEYCTL_SET_TIMEOUT: |
77 | return keyctl_set_timeout(arg2, arg3); |
78 | |
79 | case KEYCTL_ASSUME_AUTHORITY: |
80 | return keyctl_assume_authority(arg2); |
81 | |
82 | case KEYCTL_GET_SECURITY: |
83 | return keyctl_get_security(arg2, compat_ptr(arg3), arg4); |
84 | |
85 | case KEYCTL_SESSION_TO_PARENT: |
86 | return keyctl_session_to_parent(); |
87 | |
88 | default: |
89 | return -EOPNOTSUPP; |
90 | } |
91 | |
92 | } /* end compat_sys_keyctl() */ |
93 |
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