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
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
|
/*
* Copyright (C) 2019 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.
*/
#include "updater/build_info.h"
#include <set>
#include <vector>
#include <android-base/logging.h>
#include <android-base/stringprintf.h>
#include <android-base/strings.h>
#include "updater/target_files.h"
bool BuildInfo::ParseTargetFile(const std::string_view target_file_path, bool extracted_input) {
TargetFile target_file(std::string(target_file_path), extracted_input);
if (!target_file.Open()) {
return false;
}
if (!target_file.GetBuildProps(&build_props_)) {
return false;
}
std::vector<FstabInfo> fstab_info_list;
if (!target_file.ParseFstabInfo(&fstab_info_list)) {
return false;
}
for (const auto& fstab_info : fstab_info_list) {
for (const auto& directory : { "IMAGES", "RADIO" }) {
std::string entry_name = directory + fstab_info.mount_point + ".img";
if (!target_file.EntryExists(entry_name)) {
LOG(WARNING) << "Failed to find the image entry in the target file: " << entry_name;
continue;
}
temp_files_.emplace_back(work_dir_);
auto& image_file = temp_files_.back();
if (!target_file.ExtractImage(entry_name, fstab_info, work_dir_, &image_file)) {
LOG(ERROR) << "Failed to set up source image files.";
return false;
}
LOG(INFO) << "Mounted " << fstab_info.mount_point << "\nMapping: " << fstab_info.blockdev_name
<< " to " << image_file.path;
blockdev_map_.emplace(
fstab_info.blockdev_name,
FakeBlockDevice(fstab_info.blockdev_name, fstab_info.mount_point, image_file.path));
break;
}
}
return true;
}
std::string BuildInfo::GetProperty(const std::string_view key,
const std::string_view default_value) const {
// The logic to parse the ro.product properties should be in line with the generation script.
// More details in common.py BuildInfo.GetBuildProp.
// TODO(xunchang) handle the oem property and the source order defined in
// ro.product.property_source_order
const std::set<std::string, std::less<>> ro_product_props = {
"ro.product.brand", "ro.product.device", "ro.product.manufacturer", "ro.product.model",
"ro.product.name"
};
const std::vector<std::string> source_order = {
"product", "odm", "vendor", "system_ext", "system",
};
if (ro_product_props.find(key) != ro_product_props.end()) {
std::string_view key_suffix(key);
CHECK(android::base::ConsumePrefix(&key_suffix, "ro.product"));
for (const auto& source : source_order) {
std::string resolved_key = "ro.product." + source + std::string(key_suffix);
if (auto entry = build_props_.find(resolved_key); entry != build_props_.end()) {
return entry->second;
}
}
LOG(WARNING) << "Failed to find property: " << key;
return std::string(default_value);
} else if (key == "ro.build.fingerprint") {
// clang-format off
return android::base::StringPrintf("%s/%s/%s:%s/%s/%s:%s/%s",
GetProperty("ro.product.brand", "").c_str(),
GetProperty("ro.product.name", "").c_str(),
GetProperty("ro.product.device", "").c_str(),
GetProperty("ro.build.version.release", "").c_str(),
GetProperty("ro.build.id", "").c_str(),
GetProperty("ro.build.version.incremental", "").c_str(),
GetProperty("ro.build.type", "").c_str(),
GetProperty("ro.build.tags", "").c_str());
// clang-format on
}
auto entry = build_props_.find(key);
if (entry == build_props_.end()) {
LOG(WARNING) << "Failed to find property: " << key;
return std::string(default_value);
}
return entry->second;
}
std::string BuildInfo::FindBlockDeviceName(const std::string_view name) const {
auto entry = blockdev_map_.find(name);
if (entry == blockdev_map_.end()) {
LOG(WARNING) << "Failed to find path to block device " << name;
return "";
}
return entry->second.mounted_file_path;
}
|
