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-rw-r--r--Kernel/Devices/EBRPartitionTable.h71
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diff --git a/Kernel/Devices/EBRPartitionTable.h b/Kernel/Devices/EBRPartitionTable.h
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--- a/Kernel/Devices/EBRPartitionTable.h
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-/*
- * Copyright (c) 2020, Liav A. <liavalb@hotmail.co.il>
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *
- * 1. Redistributions of source code must retain the above copyright notice, this
- * list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright notice,
- * this list of conditions and the following disclaimer in the documentation
- * and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
- * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
- * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
- * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#pragma once
-
-#include <AK/RefPtr.h>
-#include <AK/Vector.h>
-#include <Kernel/Devices/DiskPartition.h>
-#include <Kernel/Devices/MBRPartitionTable.h>
-
-namespace Kernel {
-
-struct [[gnu::packed]] EBRPartitionExtension
-{
- u8 unused_area[446];
- MBRPartitionEntry entry;
- MBRPartitionEntry next_chained_ebr_extension;
- MBRPartitionEntry unused[2];
- u16 mbr_signature;
-};
-
-class EBRPartitionTable {
-
-public:
- explicit EBRPartitionTable(NonnullRefPtr<BlockDevice>);
- ~EBRPartitionTable();
-
- bool initialize();
- RefPtr<DiskPartition> partition(unsigned index);
-
-private:
- int index_of_ebr_container() const;
- NonnullRefPtr<BlockDevice> m_device;
-
- const MBRPartitionHeader& header() const;
- const EBRPartitionExtension& ebr_extension() const;
-
- bool index_is_extended_partition(unsigned index) const;
-
- RefPtr<DiskPartition> get_extended_partition(unsigned index);
- RefPtr<DiskPartition> get_non_extended_partition(unsigned index);
- u8 m_ebr_container_id { 0 };
- size_t m_ebr_chained_extensions_count { 0 };
- u8 m_cached_mbr_header[512];
- u8 m_cached_ebr_header[512];
-};
-
-}