/* compat.c: 32-bit compatibility syscall for 64-bit systems * * Copyright (C) 2004-5 Red Hat, Inc. All Rights Reserved. * Written by David Howells (dhowells@redhat.com) * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version * 2 of the License, or (at your option) any later version. */ #include <linux/syscalls.h> #include <linux/keyctl.h> #include <linux/compat.h> #include "internal.h" /*****************************************************************************/ /* * the key control system call, 32-bit compatibility version for 64-bit archs * - this should only be called if the 64-bit arch uses weird pointers in * 32-bit mode or doesn't guarantee that the top 32-bits of the argument * registers on taking a 32-bit syscall are zero * - if you can, you should call sys_keyctl directly */ asmlinkage long compat_sys_keyctl(u32 option, u32 arg2, u32 arg3, u32 arg4, u32 arg5) { switch (option) { case KEYCTL_GET_KEYRING_ID: return keyctl_get_keyring_ID(arg2, arg3); case KEYCTL_JOIN_SESSION_KEYRING: return keyctl_join_session_keyring(compat_ptr(arg2)); case KEYCTL_UPDATE: return keyctl_update_key(arg2, compat_ptr(arg3), arg4); case KEYCTL_REVOKE: return keyctl_revoke_key(arg2); case KEYCTL_DESCRIBE: return keyctl_describe_key(arg2, compat_ptr(arg3), arg4); case KEYCTL_CLEAR: return keyctl_keyring_clear(arg2); case KEYCTL_LINK: return keyctl_keyring_link(arg2, arg3); case KEYCTL_UNLINK: return keyctl_keyring_unlink(arg2, arg3); case KEYCTL_SEARCH: return keyctl_keyring_search(arg2, compat_ptr(arg3), compat_ptr(arg4), arg5); case KEYCTL_READ: return keyctl_read_key(arg2, compat_ptr(arg3), arg4); case KEYCTL_CHOWN: return keyctl_chown_key(arg2, arg3, arg4); case KEYCTL_SETPERM: return keyctl_setperm_key(arg2, arg3); case KEYCTL_INSTANTIATE: return keyctl_instantiate_key(arg2, compat_ptr(arg3), arg4, arg5); case KEYCTL_NEGATE: return keyctl_negate_key(arg2, arg3, arg4); case KEYCTL_SET_REQKEY_KEYRING: return keyctl_set_reqkey_keyring(arg2); case KEYCTL_SET_TIMEOUT: return keyctl_set_timeout(arg2, arg3); case KEYCTL_ASSUME_AUTHORITY: return keyctl_assume_authority(arg2); case KEYCTL_GET_SECURITY: return keyctl_get_security(arg2, compat_ptr(arg3), arg4); case KEYCTL_SESSION_TO_PARENT: return keyctl_session_to_parent(); default: return -EOPNOTSUPP; } } /* end compat_sys_keyctl() */