48 lines
1.8 KiB
C
48 lines
1.8 KiB
C
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//
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// Copyright (C) 2012 The Android Open Source Project
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//
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#ifndef UPDATE_ENGINE_PAYLOAD_GENERATOR_DELTA_DIFF_GENERATOR_H_
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#define UPDATE_ENGINE_PAYLOAD_GENERATOR_DELTA_DIFF_GENERATOR_H_
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#include <string>
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#include "update_engine/payload_generator/payload_generation_config.h"
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namespace chromeos_update_engine {
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constexpr size_t kBlockSize = 4096;
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extern const size_t kRootFSPartitionSize;
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// The |config| describes the payload generation request, describing both
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// old and new images for delta payloads and only the new image for full
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// payloads.
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// For delta payloads, the images should be already mounted read-only at
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// the respective rootfs_mountpt.
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// |private_key_path| points to a private key used to sign the update.
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// Pass empty string to not sign the update.
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// |output_path| is the filename where the delta update should be written.
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// Returns true on success. Also writes the size of the metadata into
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// |metadata_size|.
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bool GenerateUpdatePayloadFile(const PayloadGenerationConfig& config,
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const std::string& output_path,
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const std::string& private_key_path,
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uint64_t* metadata_size);
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}; // namespace chromeos_update_engine
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#endif // UPDATE_ENGINE_PAYLOAD_GENERATOR_DELTA_DIFF_GENERATOR_H_
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