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Kernel: Add DiskPartitionMetadata Class
This class will be used to describe a partition of a StorageDevice, without creating a DiskPartition object.
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3 changed files with 137 additions and 0 deletions
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@ -36,6 +36,7 @@ set(KERNEL_SOURCES
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Devices/VMWareBackdoor.cpp
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Devices/VMWareBackdoor.cpp
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Devices/ZeroDevice.cpp
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Devices/ZeroDevice.cpp
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Storage/Partition/DiskPartition.cpp
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Storage/Partition/DiskPartition.cpp
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Storage/Partition/DiskPartitionMetadata.cpp
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Storage/Partition/EBRPartitionTable.cpp
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Storage/Partition/EBRPartitionTable.cpp
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Storage/Partition/GPTPartitionTable.cpp
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Storage/Partition/GPTPartitionTable.cpp
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Storage/Partition/MBRPartitionTable.cpp
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Storage/Partition/MBRPartitionTable.cpp
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81
Kernel/Storage/Partition/DiskPartitionMetadata.cpp
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81
Kernel/Storage/Partition/DiskPartitionMetadata.cpp
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@ -0,0 +1,81 @@
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/*
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* Copyright (c) 2020, Liav A. <liavalb@hotmail.co.il>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <Kernel/Storage/Partition/DiskPartitionMetadata.h>
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namespace Kernel {
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DiskPartitionMetadata::DiskPartitionMetadata(u64 start_block, u64 end_block, ByteBuffer partition_type)
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: m_start_block(start_block)
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, m_end_block(end_block)
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, m_partition_type(partition_type)
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{
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ASSERT(!m_partition_type.is_empty());
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}
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DiskPartitionMetadata::DiskPartitionMetadata(u64 start_block, u64 end_block, ByteBuffer partition_guid, ByteBuffer unique_guid, u64 special_attributes, String name)
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: m_start_block(start_block)
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, m_end_block(end_block)
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, m_partition_type(partition_guid)
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, m_unique_guid(unique_guid)
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, m_attributes(special_attributes)
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, m_name(name)
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{
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ASSERT(!m_partition_type.is_empty());
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ASSERT(!m_unique_guid.is_empty());
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}
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u64 DiskPartitionMetadata::start_block() const
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{
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return m_start_block;
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}
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u64 DiskPartitionMetadata::end_block() const
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{
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return m_end_block;
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}
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Optional<u64> DiskPartitionMetadata::special_attributes() const
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{
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if (m_attributes == 0)
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return {};
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return m_attributes;
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}
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Optional<String> DiskPartitionMetadata::name() const
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{
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if (m_name.is_null() || m_name.is_empty())
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return {};
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return m_name;
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}
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Optional<ByteBuffer> DiskPartitionMetadata::partition_type() const
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{
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if (m_partition_type.is_null() || m_partition_type.is_empty())
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return {};
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return m_partition_type;
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}
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Optional<ByteBuffer> DiskPartitionMetadata::unique_guid() const
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{
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if (m_unique_guid.is_null() || m_unique_guid.is_empty())
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return {};
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return m_unique_guid;
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}
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}
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55
Kernel/Storage/Partition/DiskPartitionMetadata.h
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55
Kernel/Storage/Partition/DiskPartitionMetadata.h
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@ -0,0 +1,55 @@
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/*
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* Copyright (c) 2020, Liav A. <liavalb@hotmail.co.il>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#pragma once
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#include <AK/RefPtr.h>
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#include <Kernel/Devices/BlockDevice.h>
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namespace Kernel {
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class DiskPartitionMetadata {
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public:
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DiskPartitionMetadata(u64 block_offset, u64 block_limit, ByteBuffer partition_type);
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DiskPartitionMetadata(u64 block_offset, u64 block_limit, ByteBuffer partition_type, ByteBuffer unique_guid, u64 special_attributes, String name);
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u64 start_block() const;
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u64 end_block() const;
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Optional<u64> special_attributes() const;
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Optional<String> name() const;
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Optional<ByteBuffer> partition_type() const;
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Optional<ByteBuffer> unique_guid() const;
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private:
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u64 m_start_block;
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u64 m_end_block;
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ByteBuffer m_partition_type;
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ByteBuffer m_unique_guid;
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u64 m_attributes;
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String m_name;
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};
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}
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