Anton Hansson | da4972f | 2020-01-08 09:48:18 +0000 | [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 | #define LOG_TAG "derive_sdk" |
| 18 | |
Anton Hansson | dddcb57 | 2020-11-24 09:32:14 +0000 | [diff] [blame] | 19 | #include "derive_sdk.h" |
| 20 | |
Anton Hansson | da4972f | 2020-01-08 09:48:18 +0000 | [diff] [blame] | 21 | #include <android-base/file.h> |
| 22 | #include <android-base/logging.h> |
| 23 | #include <android-base/properties.h> |
Anton Hansson | b1a217c | 2020-11-30 11:43:05 +0000 | [diff] [blame] | 24 | #include <android-modules-utils/sdk_level.h> |
Anton Hansson | e4fd55c | 2020-12-29 17:46:30 +0000 | [diff] [blame] | 25 | #include <dirent.h> |
| 26 | #include <sys/stat.h> |
| 27 | |
| 28 | #include <algorithm> |
| 29 | #include <iostream> |
| 30 | #include <vector> |
Anton Hansson | da4972f | 2020-01-08 09:48:18 +0000 | [diff] [blame] | 31 | |
Anton Hansson | 502b775 | 2021-01-06 12:16:54 +0000 | [diff] [blame] | 32 | #include "packages/modules/SdkExtensions/proto/sdk.pb.h" |
Anton Hansson | da4972f | 2020-01-08 09:48:18 +0000 | [diff] [blame] | 33 | |
Anton Hansson | dddcb57 | 2020-11-24 09:32:14 +0000 | [diff] [blame] | 34 | namespace android { |
| 35 | namespace derivesdk { |
| 36 | |
Anton Hansson | 16097ea | 2021-01-12 20:34:32 +0000 | [diff] [blame] | 37 | static const std::unordered_map<std::string, SdkModule> kApexNameToModule = { |
Anton Hansson | cda99fa | 2021-01-15 08:15:57 +0000 | [diff] [blame] | 38 | {"com.android.art", SdkModule::ART}, |
Anton Hansson | 16097ea | 2021-01-12 20:34:32 +0000 | [diff] [blame] | 39 | {"com.android.ipsec", SdkModule::IPSEC}, |
| 40 | {"com.android.media", SdkModule::MEDIA}, |
| 41 | {"com.android.mediaprovider", SdkModule::MEDIA_PROVIDER}, |
| 42 | {"com.android.permission", SdkModule::PERMISSIONS}, |
| 43 | {"com.android.sdkext", SdkModule::SDK_EXTENSIONS}, |
| 44 | {"com.android.os.statsd", SdkModule::STATSD}, |
| 45 | {"com.android.tethering", SdkModule::TETHERING}, |
| 46 | }; |
| 47 | |
| 48 | static const std::unordered_set<SdkModule> kRModules = { |
| 49 | SdkModule::IPSEC, SdkModule::MEDIA, |
| 50 | SdkModule::MEDIA_PROVIDER, SdkModule::PERMISSIONS, |
| 51 | SdkModule::SDK_EXTENSIONS, SdkModule::STATSD, |
| 52 | SdkModule::TETHERING, |
| 53 | }; |
| 54 | |
Anton Hansson | cda99fa | 2021-01-15 08:15:57 +0000 | [diff] [blame] | 55 | static const std::unordered_set<SdkModule> kSModules = {SdkModule::ART}; |
Anton Hansson | 16097ea | 2021-01-12 20:34:32 +0000 | [diff] [blame] | 56 | |
| 57 | bool ReadDatabase(const std::string& db_path, ExtensionDatabase& db) { |
| 58 | std::string contents; |
| 59 | if (!android::base::ReadFileToString(db_path, &contents, true)) { |
| 60 | PLOG(ERROR) << "failed to read " << db_path << ": "; |
| 61 | return false; |
| 62 | } |
| 63 | if (!db.ParseFromString(contents)) { |
| 64 | LOG(ERROR) << "failed to parse " << db_path; |
| 65 | return false; |
| 66 | } |
| 67 | return true; |
| 68 | } |
| 69 | |
| 70 | bool VersionRequirementsMet( |
| 71 | const ExtensionVersion& ext_version, |
| 72 | const std::unordered_set<SdkModule>& relevant_modules, |
| 73 | const std::unordered_map<SdkModule, int>& module_versions) { |
| 74 | for (const auto& requirement : ext_version.requirements()) { |
| 75 | // Only requirements on modules relevant for this extension matter. |
| 76 | if (relevant_modules.find(requirement.module()) == relevant_modules.end()) |
| 77 | continue; |
| 78 | |
| 79 | auto version = module_versions.find(requirement.module()); |
| 80 | if (version == module_versions.end()) { |
| 81 | LOG(DEBUG) << "Not version " << ext_version.version() << ": Module " |
| 82 | << requirement.module() << " is missing"; |
| 83 | return false; |
| 84 | } |
| 85 | if (version->second < requirement.version().version()) { |
| 86 | LOG(DEBUG) << "Not version " << ext_version.version() << ": Module " |
| 87 | << requirement.module() << " version (" << version->second |
| 88 | << ") too low. Needed " << requirement.version().version(); |
| 89 | return false; |
| 90 | } |
| 91 | } |
| 92 | return true; |
| 93 | } |
| 94 | |
| 95 | int GetSdkLevel(const ExtensionDatabase& db, |
| 96 | const std::unordered_set<SdkModule>& relevant_modules, |
| 97 | const std::unordered_map<SdkModule, int>& module_versions) { |
| 98 | int max = 0; |
| 99 | |
| 100 | for (const auto& ext_version : db.versions()) { |
| 101 | if (ext_version.version() > max && |
| 102 | VersionRequirementsMet(ext_version, relevant_modules, |
| 103 | module_versions)) { |
| 104 | max = ext_version.version(); |
| 105 | } |
| 106 | } |
| 107 | return max; |
| 108 | } |
| 109 | |
Anton Hansson | dddcb57 | 2020-11-24 09:32:14 +0000 | [diff] [blame] | 110 | bool SetSdkLevels(const std::string& mountpath) { |
Anton Hansson | 16097ea | 2021-01-12 20:34:32 +0000 | [diff] [blame] | 111 | ExtensionDatabase db; |
| 112 | if (!ReadDatabase( |
| 113 | mountpath + "/com.android.sdkext/etc/extensions_db.binarypb", db)) { |
| 114 | LOG(ERROR) << "Failed to read database"; |
| 115 | return false; |
| 116 | } |
Anton Hansson | dddcb57 | 2020-11-24 09:32:14 +0000 | [diff] [blame] | 117 | std::unique_ptr<DIR, decltype(&closedir)> apex(opendir(mountpath.c_str()), |
| 118 | closedir); |
Anton Hansson | e4fd55c | 2020-12-29 17:46:30 +0000 | [diff] [blame] | 119 | if (!apex) { |
Anton Hansson | dddcb57 | 2020-11-24 09:32:14 +0000 | [diff] [blame] | 120 | LOG(ERROR) << "Could not read " + mountpath; |
| 121 | return false; |
Anton Hansson | e4fd55c | 2020-12-29 17:46:30 +0000 | [diff] [blame] | 122 | } |
| 123 | struct dirent* de; |
Anton Hansson | 16097ea | 2021-01-12 20:34:32 +0000 | [diff] [blame] | 124 | std::unordered_map<SdkModule, int> versions; |
Anton Hansson | e4fd55c | 2020-12-29 17:46:30 +0000 | [diff] [blame] | 125 | while ((de = readdir(apex.get()))) { |
| 126 | std::string name = de->d_name; |
| 127 | if (name[0] == '.' || name.find('@') != std::string::npos) { |
| 128 | // Skip <name>@<ver> dirs, as they are bind-mounted to <name> |
| 129 | continue; |
Anton Hansson | da4972f | 2020-01-08 09:48:18 +0000 | [diff] [blame] | 130 | } |
Anton Hansson | dddcb57 | 2020-11-24 09:32:14 +0000 | [diff] [blame] | 131 | std::string path = mountpath + "/" + name + "/etc/sdkinfo.binarypb"; |
Anton Hansson | e4fd55c | 2020-12-29 17:46:30 +0000 | [diff] [blame] | 132 | struct stat statbuf; |
Anton Hansson | 16097ea | 2021-01-12 20:34:32 +0000 | [diff] [blame] | 133 | if (stat(path.c_str(), &statbuf) != 0) { |
| 134 | continue; |
Anton Hansson | da4972f | 2020-01-08 09:48:18 +0000 | [diff] [blame] | 135 | } |
Anton Hansson | 16097ea | 2021-01-12 20:34:32 +0000 | [diff] [blame] | 136 | auto module_itr = kApexNameToModule.find(name); |
| 137 | if (module_itr == kApexNameToModule.end()) { |
| 138 | LOG(WARNING) << "Found sdkinfo in unexpected apex " << name; |
| 139 | continue; |
| 140 | } |
Anton Hansson | e4fd55c | 2020-12-29 17:46:30 +0000 | [diff] [blame] | 141 | std::string contents; |
| 142 | if (!android::base::ReadFileToString(path, &contents, true)) { |
| 143 | LOG(ERROR) << "failed to read " << path; |
| 144 | continue; |
Anton Hansson | da4972f | 2020-01-08 09:48:18 +0000 | [diff] [blame] | 145 | } |
Anton Hansson | e4fd55c | 2020-12-29 17:46:30 +0000 | [diff] [blame] | 146 | SdkVersion sdk_version; |
| 147 | if (!sdk_version.ParseFromString(contents)) { |
| 148 | LOG(ERROR) << "failed to parse " << path; |
| 149 | continue; |
| 150 | } |
Anton Hansson | 16097ea | 2021-01-12 20:34:32 +0000 | [diff] [blame] | 151 | SdkModule module = module_itr->second; |
| 152 | LOG(INFO) << "Read version " << sdk_version.version() << " from " << module; |
| 153 | versions[module] = sdk_version.version(); |
Anton Hansson | e4fd55c | 2020-12-29 17:46:30 +0000 | [diff] [blame] | 154 | } |
Anton Hansson | da4972f | 2020-01-08 09:48:18 +0000 | [diff] [blame] | 155 | |
Anton Hansson | 16097ea | 2021-01-12 20:34:32 +0000 | [diff] [blame] | 156 | int version_R = GetSdkLevel(db, kRModules, versions); |
| 157 | LOG(INFO) << "R extension version is " << version_R; |
| 158 | |
| 159 | if (!android::base::SetProperty("build.version.extensions.r", |
| 160 | std::to_string(version_R))) { |
Anton Hansson | e4fd55c | 2020-12-29 17:46:30 +0000 | [diff] [blame] | 161 | LOG(ERROR) << "failed to set r sdk_info prop"; |
Anton Hansson | dddcb57 | 2020-11-24 09:32:14 +0000 | [diff] [blame] | 162 | return false; |
Anton Hansson | e4fd55c | 2020-12-29 17:46:30 +0000 | [diff] [blame] | 163 | } |
| 164 | if (android::modules::sdklevel::IsAtLeastS()) { |
Anton Hansson | 16097ea | 2021-01-12 20:34:32 +0000 | [diff] [blame] | 165 | int version_S = GetSdkLevel(db, kSModules, versions); |
| 166 | LOG(INFO) << "S extension version is " << version_S; |
| 167 | if (!android::base::SetProperty("build.version.extensions.s", |
| 168 | std::to_string(version_S))) { |
Anton Hansson | e4fd55c | 2020-12-29 17:46:30 +0000 | [diff] [blame] | 169 | LOG(ERROR) << "failed to set s sdk_info prop"; |
Anton Hansson | dddcb57 | 2020-11-24 09:32:14 +0000 | [diff] [blame] | 170 | return false; |
Anton Hansson | da4972f | 2020-01-08 09:48:18 +0000 | [diff] [blame] | 171 | } |
Anton Hansson | e4fd55c | 2020-12-29 17:46:30 +0000 | [diff] [blame] | 172 | } |
Anton Hansson | da4972f | 2020-01-08 09:48:18 +0000 | [diff] [blame] | 173 | |
Anton Hansson | dddcb57 | 2020-11-24 09:32:14 +0000 | [diff] [blame] | 174 | return true; |
Anton Hansson | da4972f | 2020-01-08 09:48:18 +0000 | [diff] [blame] | 175 | } |
Anton Hansson | dddcb57 | 2020-11-24 09:32:14 +0000 | [diff] [blame] | 176 | |
| 177 | } // namespace derivesdk |
| 178 | } // namespace android |