Tianjie Xu | c1a5e26 | 2019-05-22 14:34:12 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2019 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | #include "updater/simulator_runtime.h" |
| 18 | |
| 19 | #include <string.h> |
| 20 | #include <sys/mount.h> |
| 21 | #include <sys/stat.h> |
| 22 | #include <sys/wait.h> |
| 23 | #include <unistd.h> |
| 24 | |
Tianjie Xu | d118833 | 2019-05-24 16:08:45 -0700 | [diff] [blame] | 25 | #include <unordered_set> |
| 26 | |
Tianjie Xu | c1a5e26 | 2019-05-22 14:34:12 -0700 | [diff] [blame] | 27 | #include <android-base/file.h> |
| 28 | #include <android-base/logging.h> |
| 29 | #include <android-base/properties.h> |
| 30 | #include <android-base/strings.h> |
| 31 | #include <android-base/unique_fd.h> |
| 32 | #include <ext4_utils/wipe.h> |
| 33 | #include <selinux/label.h> |
| 34 | |
Tao Bao | d628cfc | 2019-10-01 12:08:33 -0700 | [diff] [blame] | 35 | #include "mounts.h" |
Tianjie Xu | c1a5e26 | 2019-05-22 14:34:12 -0700 | [diff] [blame] | 36 | #include "otautil/sysutil.h" |
| 37 | |
| 38 | std::string SimulatorRuntime::GetProperty(const std::string_view key, |
| 39 | const std::string_view default_value) const { |
| 40 | return source_->GetProperty(key, default_value); |
| 41 | } |
| 42 | |
| 43 | int SimulatorRuntime::Mount(const std::string_view location, const std::string_view mount_point, |
| 44 | const std::string_view /* fs_type */, |
| 45 | const std::string_view /* mount_options */) { |
| 46 | if (auto mounted_location = mounted_partitions_.find(mount_point); |
| 47 | mounted_location != mounted_partitions_.end() && mounted_location->second != location) { |
| 48 | LOG(ERROR) << mount_point << " has been mounted at " << mounted_location->second; |
| 49 | return -1; |
| 50 | } |
| 51 | |
| 52 | mounted_partitions_.emplace(mount_point, location); |
| 53 | return 0; |
| 54 | } |
| 55 | |
| 56 | bool SimulatorRuntime::IsMounted(const std::string_view mount_point) const { |
| 57 | return mounted_partitions_.find(mount_point) != mounted_partitions_.end(); |
| 58 | } |
| 59 | |
| 60 | std::pair<bool, int> SimulatorRuntime::Unmount(const std::string_view mount_point) { |
| 61 | if (!IsMounted(mount_point)) { |
| 62 | return { false, -1 }; |
| 63 | } |
| 64 | |
| 65 | mounted_partitions_.erase(std::string(mount_point)); |
| 66 | return { true, 0 }; |
| 67 | } |
| 68 | |
| 69 | std::string SimulatorRuntime::FindBlockDeviceName(const std::string_view name) const { |
| 70 | return source_->FindBlockDeviceName(name); |
| 71 | } |
| 72 | |
| 73 | // TODO(xunchang) implement the utility functions in simulator. |
| 74 | int SimulatorRuntime::RunProgram(const std::vector<std::string>& args, bool /* is_vfork */) const { |
| 75 | LOG(INFO) << "Running program with args " << android::base::Join(args, " "); |
| 76 | return 0; |
| 77 | } |
| 78 | |
| 79 | int SimulatorRuntime::Tune2Fs(const std::vector<std::string>& args) const { |
| 80 | LOG(INFO) << "Running Tune2Fs with args " << android::base::Join(args, " "); |
| 81 | return 0; |
| 82 | } |
| 83 | |
| 84 | int SimulatorRuntime::WipeBlockDevice(const std::string_view filename, size_t /* len */) const { |
| 85 | LOG(INFO) << "SKip wiping block device " << filename; |
| 86 | return 0; |
| 87 | } |
| 88 | |
| 89 | bool SimulatorRuntime::ReadFileToString(const std::string_view filename, |
Tianjie Xu | 7efd233 | 2019-07-15 16:13:49 -0700 | [diff] [blame] | 90 | std::string* content) const { |
| 91 | if (android::base::EndsWith(filename, "oem.prop")) { |
| 92 | return android::base::ReadFileToString(source_->GetOemSettings(), content); |
| 93 | } |
| 94 | |
Tianjie Xu | c1a5e26 | 2019-05-22 14:34:12 -0700 | [diff] [blame] | 95 | LOG(INFO) << "SKip reading filename " << filename; |
| 96 | return true; |
| 97 | } |
| 98 | |
| 99 | bool SimulatorRuntime::WriteStringToFile(const std::string_view content, |
| 100 | const std::string_view filename) const { |
| 101 | LOG(INFO) << "SKip writing " << content.size() << " bytes to file " << filename; |
| 102 | return true; |
| 103 | } |
Tianjie Xu | d118833 | 2019-05-24 16:08:45 -0700 | [diff] [blame] | 104 | |
| 105 | bool SimulatorRuntime::MapPartitionOnDeviceMapper(const std::string& partition_name, |
| 106 | std::string* path) { |
| 107 | *path = partition_name; |
| 108 | return true; |
| 109 | } |
| 110 | |
| 111 | bool SimulatorRuntime::UnmapPartitionOnDeviceMapper(const std::string& partition_name) { |
| 112 | LOG(INFO) << "Skip unmapping " << partition_name; |
| 113 | return true; |
| 114 | } |
| 115 | |
| 116 | bool SimulatorRuntime::UpdateDynamicPartitions(const std::string_view op_list_value) { |
| 117 | const std::unordered_set<std::string> commands{ |
| 118 | "resize", "remove", "add", "move", |
| 119 | "add_group", "resize_group", "remove_group", "remove_all_groups", |
| 120 | }; |
| 121 | |
| 122 | std::vector<std::string> lines = android::base::Split(std::string(op_list_value), "\n"); |
| 123 | for (const auto& line : lines) { |
| 124 | if (line.empty() || line[0] == '#') continue; |
| 125 | auto tokens = android::base::Split(line, " "); |
| 126 | if (commands.find(tokens[0]) == commands.end()) { |
| 127 | LOG(ERROR) << "Unknown operation in op_list: " << line; |
| 128 | return false; |
| 129 | } |
| 130 | } |
| 131 | return true; |
| 132 | } |
Yifan Hong | dff8004 | 2020-04-28 13:31:11 -0700 | [diff] [blame^] | 133 | |
| 134 | std::string SimulatorRuntime::AddSlotSuffix(const std::string_view arg) const { |
| 135 | LOG(INFO) << "Skip adding slot suffix to " << arg; |
| 136 | return std::string(arg); |
| 137 | } |