compat.c (3300B)
1// SPDX-License-Identifier: GPL-2.0-or-later 2/* 32-bit compatibility syscall for 64-bit systems 3 * 4 * Copyright (C) 2004-5 Red Hat, Inc. All Rights Reserved. 5 * Written by David Howells (dhowells@redhat.com) 6 */ 7 8#include <linux/syscalls.h> 9#include <linux/keyctl.h> 10#include <linux/compat.h> 11#include <linux/slab.h> 12#include "internal.h" 13 14/* 15 * The key control system call, 32-bit compatibility version for 64-bit archs 16 */ 17COMPAT_SYSCALL_DEFINE5(keyctl, u32, option, 18 u32, arg2, u32, arg3, u32, arg4, u32, arg5) 19{ 20 switch (option) { 21 case KEYCTL_GET_KEYRING_ID: 22 return keyctl_get_keyring_ID(arg2, arg3); 23 24 case KEYCTL_JOIN_SESSION_KEYRING: 25 return keyctl_join_session_keyring(compat_ptr(arg2)); 26 27 case KEYCTL_UPDATE: 28 return keyctl_update_key(arg2, compat_ptr(arg3), arg4); 29 30 case KEYCTL_REVOKE: 31 return keyctl_revoke_key(arg2); 32 33 case KEYCTL_DESCRIBE: 34 return keyctl_describe_key(arg2, compat_ptr(arg3), arg4); 35 36 case KEYCTL_CLEAR: 37 return keyctl_keyring_clear(arg2); 38 39 case KEYCTL_LINK: 40 return keyctl_keyring_link(arg2, arg3); 41 42 case KEYCTL_UNLINK: 43 return keyctl_keyring_unlink(arg2, arg3); 44 45 case KEYCTL_SEARCH: 46 return keyctl_keyring_search(arg2, compat_ptr(arg3), 47 compat_ptr(arg4), arg5); 48 49 case KEYCTL_READ: 50 return keyctl_read_key(arg2, compat_ptr(arg3), arg4); 51 52 case KEYCTL_CHOWN: 53 return keyctl_chown_key(arg2, arg3, arg4); 54 55 case KEYCTL_SETPERM: 56 return keyctl_setperm_key(arg2, arg3); 57 58 case KEYCTL_INSTANTIATE: 59 return keyctl_instantiate_key(arg2, compat_ptr(arg3), arg4, 60 arg5); 61 62 case KEYCTL_NEGATE: 63 return keyctl_negate_key(arg2, arg3, arg4); 64 65 case KEYCTL_SET_REQKEY_KEYRING: 66 return keyctl_set_reqkey_keyring(arg2); 67 68 case KEYCTL_SET_TIMEOUT: 69 return keyctl_set_timeout(arg2, arg3); 70 71 case KEYCTL_ASSUME_AUTHORITY: 72 return keyctl_assume_authority(arg2); 73 74 case KEYCTL_GET_SECURITY: 75 return keyctl_get_security(arg2, compat_ptr(arg3), arg4); 76 77 case KEYCTL_SESSION_TO_PARENT: 78 return keyctl_session_to_parent(); 79 80 case KEYCTL_REJECT: 81 return keyctl_reject_key(arg2, arg3, arg4, arg5); 82 83 case KEYCTL_INSTANTIATE_IOV: 84 return keyctl_instantiate_key_iov(arg2, compat_ptr(arg3), arg4, 85 arg5); 86 87 case KEYCTL_INVALIDATE: 88 return keyctl_invalidate_key(arg2); 89 90 case KEYCTL_GET_PERSISTENT: 91 return keyctl_get_persistent(arg2, arg3); 92 93 case KEYCTL_DH_COMPUTE: 94 return compat_keyctl_dh_compute(compat_ptr(arg2), 95 compat_ptr(arg3), 96 arg4, compat_ptr(arg5)); 97 98 case KEYCTL_RESTRICT_KEYRING: 99 return keyctl_restrict_keyring(arg2, compat_ptr(arg3), 100 compat_ptr(arg4)); 101 102 case KEYCTL_PKEY_QUERY: 103 if (arg3 != 0) 104 return -EINVAL; 105 return keyctl_pkey_query(arg2, 106 compat_ptr(arg4), 107 compat_ptr(arg5)); 108 109 case KEYCTL_PKEY_ENCRYPT: 110 case KEYCTL_PKEY_DECRYPT: 111 case KEYCTL_PKEY_SIGN: 112 return keyctl_pkey_e_d_s(option, 113 compat_ptr(arg2), compat_ptr(arg3), 114 compat_ptr(arg4), compat_ptr(arg5)); 115 116 case KEYCTL_PKEY_VERIFY: 117 return keyctl_pkey_verify(compat_ptr(arg2), compat_ptr(arg3), 118 compat_ptr(arg4), compat_ptr(arg5)); 119 120 case KEYCTL_MOVE: 121 return keyctl_keyring_move(arg2, arg3, arg4, arg5); 122 123 case KEYCTL_CAPABILITIES: 124 return keyctl_capabilities(compat_ptr(arg2), arg3); 125 126 case KEYCTL_WATCH_KEY: 127 return keyctl_watch_key(arg2, arg3, arg4); 128 129 default: 130 return -EOPNOTSUPP; 131 } 132}