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 UPDATE_ENGINE_PAYLOAD_CONSUMER_VERITY_WRITER_INTERFACE_H_ 18 #define UPDATE_ENGINE_PAYLOAD_CONSUMER_VERITY_WRITER_INTERFACE_H_ 19 20 #include <cstdint> 21 #include <memory> 22 23 #include <base/macros.h> 24 25 #include "update_engine/payload_consumer/install_plan.h" 26 27 namespace chromeos_update_engine { 28 29 class VerityWriterInterface { 30 public: 31 virtual ~VerityWriterInterface() = default; 32 33 virtual bool Init(const InstallPlan::Partition& partition) = 0; 34 // Update partition data at [offset : offset + size) stored in |buffer|. 35 // Data not in |hash_tree_data_extent| or |fec_data_extent| is ignored. 36 // Will write verity data to the target partition once all the necessary 37 // blocks has passed. 38 virtual bool Update(uint64_t offset, const uint8_t* buffer, size_t size) = 0; 39 40 protected: 41 VerityWriterInterface() = default; 42 43 private: 44 DISALLOW_COPY_AND_ASSIGN(VerityWriterInterface); 45 }; 46 47 namespace verity_writer { 48 std::unique_ptr<VerityWriterInterface> CreateVerityWriter(); 49 } 50 51 } // namespace chromeos_update_engine 52 53 #endif // UPDATE_ENGINE_PAYLOAD_CONSUMER_VERITY_WRITER_INTERFACE_H_ 54