1 /* 2 * Copyright (C) 2018 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 #ifndef ANDROID_APEXD_APEX_FILE_H_ 18 #define ANDROID_APEXD_APEX_FILE_H_ 19 20 #include <memory> 21 #include <string> 22 #include <vector> 23 #include <ziparchive/zip_archive.h> 24 25 #include "apex_constants.h" 26 #include "apex_manifest.h" 27 #include "status_or.h" 28 29 struct AvbHashtreeDescriptor; 30 31 namespace android { 32 namespace apex { 33 34 // Data needed to construct a valid VerityTable 35 struct ApexVerityData { 36 std::unique_ptr<AvbHashtreeDescriptor> desc; 37 std::string salt; 38 std::string root_digest; 39 }; 40 41 // Manages the content of an APEX package and provides utilities to navigate 42 // the content. 43 class ApexFile { 44 public: 45 static StatusOr<ApexFile> Open(const std::string& path); 46 ApexFile() = delete; 47 ApexFile(ApexFile&&) = default; 48 GetPath()49 const std::string& GetPath() const { return apex_path_; } GetImageOffset()50 int32_t GetImageOffset() const { return image_offset_; } GetImageSize()51 size_t GetImageSize() const { return image_size_; } GetManifest()52 const ApexManifest& GetManifest() const { return manifest_; } IsFlattened()53 bool IsFlattened() const { return flattened_; } GetBundledPublicKey()54 const std::string& GetBundledPublicKey() const { return apex_pubkey_; } 55 56 StatusOr<ApexVerityData> VerifyApexVerity() const; 57 Status VerifyManifestMatches(const std::string& mount_path) const; 58 59 private: ApexFile(const std::string & apex_path,bool flattened,int32_t image_offset,size_t image_size,ApexManifest & manifest,const std::string & apex_pubkey)60 ApexFile(const std::string& apex_path, bool flattened, int32_t image_offset, 61 size_t image_size, ApexManifest& manifest, 62 const std::string& apex_pubkey) 63 : apex_path_(apex_path), 64 flattened_(flattened), 65 image_offset_(image_offset), 66 image_size_(image_size), 67 manifest_(std::move(manifest)), 68 apex_pubkey_(apex_pubkey) {} 69 70 std::string apex_path_; 71 bool flattened_; 72 int32_t image_offset_; 73 size_t image_size_; 74 ApexManifest manifest_; 75 std::string apex_pubkey_; 76 }; 77 78 StatusOr<std::vector<std::string>> FindApexes( 79 const std::vector<std::string>& paths); 80 StatusOr<std::vector<std::string>> FindApexFilesByName(const std::string& path, 81 bool include_dirs); 82 83 bool isPathForBuiltinApexes(const std::string& path); 84 bool isFlattenedApex(const std::string& path); 85 86 } // namespace apex 87 } // namespace android 88 89 #endif // ANDROID_APEXD_APEX_FILE_H_ 90