1/**
2 * \file
3 * \brief User space memory access functions.
4 */
5
6/*
7 * Copyright (c) 2012, ETH Zurich.
8 * All rights reserved.
9 *
10 * This file is distributed under the terms in the attached LICENSE file.
11 * If you do not find this file, copies can be found by writing to:
12 * ETH Zurich D-INFK, Haldeneggsteig 4, CH-8092 Zurich. Attn: Systems Group.
13 */
14
15#ifndef USERACCESS_H
16#define USERACCESS_H
17
18/**
19 * Type of access to a user space memory region.
20 */
21#define ACCESS_READ 0
22#define ACCESS_WRITE 1
23
24/**
25 * Check the validity of the user space buffer.
26 *
27 * \param type   Type of access to check: ACCESS_WRITE or ACCESS_READ.
28 * \param buffer Pointer to beginning of buffer.
29 * \param size   Size of buffer.
30 */
31bool access_ok(uint8_t type, lvaddr_t buffer, size_t size);
32
33#endif // USER_ACCESS_H
34