blob: 126872393e30a2714897ff9def79674b5c7c754a (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
|
/* Copyright 2012 The Chromium OS Authors. All rights reserved.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
/* Verified boot hashing memory module for Chrome EC */
#ifndef __CROS_EC_VBOOT_HASH_H
#define __CROS_EC_VBOOT_HASH_H
#include "common.h"
/**
* Get hash of RW image.
*
* Your task will be blocked until hash computation is done. Hashing can be
* aborted only due to internal errors (e.g. read error) but not external
* causes.
*
* This is expected to be called before tasks are initialized. If it's called
* after tasks are started, it may starve lower priority tasks.
*
* See chromium:1047870 for some optimization.
*
* @param dst (OUT) Address where computed hash is stored.
* @return enum ec_error_list.
*/
int vboot_get_rw_hash(const uint8_t **dst);
/**
* Invalidate the hash if the hashed data overlaps the specified region.
*
* @param offset Region start offset in flash
* @param size Size of region in bytes
*
* @return non-zero if the region overlapped the hashed region.
*/
int vboot_hash_invalidate(int offset, int size);
/**
* Get vboot progress status.
*
* @return 1 if vboot hashing is in progress, 0 otherwise.
*/
int vboot_hash_in_progress(void);
/**
* Abort hash currently in progress, and invalidate any completed hash.
*/
void vboot_hash_abort(void);
#endif /* __CROS_EC_VBOOT_HASH_H */
|
