blob: 4430be3fb558680806c6c0ff795e68bb70fdaeca (
plain) (
blame)
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
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
|
/*
* Copyright (C) 2015 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/*
* Read configuration files in the OTA package to determine which files, if any, will trigger errors.
*
* OTA packages can be modified to trigger errors by adding a top-level
* directory called .libotafault, which may optionally contain up to three
* files called READ, WRITE, and FSYNC. Each one of these optional files
* contains the name of a single file on the device disk which will cause
* an IO error on the first call of the appropriate I/O action to that file.
*
* Example:
* ota.zip
* <normal package contents>
* .libotafault
* WRITE
*
* If the contents of the file WRITE were /system/build.prop, the first write
* action to /system/build.prop would fail with EIO. Note that READ and
* FSYNC files are absent, so these actions will not cause an error.
*/
#ifndef _UPDATER_OTA_IO_CFG_H_
#define _UPDATER_OTA_IO_CFG_H_
#include <string>
#include <stdbool.h>
#include "minzip/Zip.h"
#define OTAIO_BASE_DIR ".libotafault"
#define OTAIO_READ "READ"
#define OTAIO_WRITE "WRITE"
#define OTAIO_FSYNC "FSYNC"
#define OTAIO_CACHE "CACHE"
/*
* Initialize libotafault by providing a reference to the OTA package.
*/
void ota_io_init(ZipArchive* za);
/*
* Return true if a config file is present for the given IO type.
*/
bool should_fault_inject(const char* io_type);
/*
* Return true if an EIO should occur on the next hit to /cache/saved.file
* instead of the next hit to the specified file.
*/
bool should_hit_cache();
/*
* Return the name of the file that should cause an error for the
* given IO type.
*/
std::string fault_fname(const char* io_type);
#endif
|
