mirror of
https://github.com/RGBCube/serenity
synced 2025-10-26 16:22:07 +00:00
1682f0b760
SPDX License Identifiers are a more compact / standardized way of representing file license information. See: https://spdx.dev/resources/use/#identifiers This was done with the `ambr` search and replace tool. ambr --no-parent-ignore --key-from-file --rep-from-file key.txt rep.txt *
65 lines
1.6 KiB
C++
65 lines
1.6 KiB
C++
/*
|
|
* Copyright (c) 2020, Liav A. <liavalb@hotmail.co.il>
|
|
*
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include <AK/ByteBuffer.h>
|
|
#include <AK/RefPtr.h>
|
|
#include <AK/Result.h>
|
|
#include <AK/Vector.h>
|
|
#include <Kernel/Storage/Partition/PartitionTable.h>
|
|
|
|
namespace Kernel {
|
|
|
|
class MBRPartitionTable : public PartitionTable {
|
|
public:
|
|
struct [[gnu::packed]] Entry {
|
|
u8 status;
|
|
u8 chs1[3];
|
|
u8 type;
|
|
u8 chs2[3];
|
|
u32 offset;
|
|
u32 length;
|
|
};
|
|
struct [[gnu::packed]] Header {
|
|
u8 code1[218];
|
|
u16 ts_zero;
|
|
u8 ts_drive;
|
|
u8 ts_seconds;
|
|
u8 ts_minutes;
|
|
u8 ts_hours;
|
|
u8 code2[216];
|
|
u32 disk_signature;
|
|
u16 disk_signature_zero;
|
|
Entry entry[4];
|
|
u16 mbr_signature;
|
|
};
|
|
|
|
public:
|
|
~MBRPartitionTable();
|
|
|
|
static Result<NonnullOwnPtr<MBRPartitionTable>, PartitionTable::Error> try_to_initialize(const StorageDevice&);
|
|
static OwnPtr<MBRPartitionTable> try_to_initialize(const StorageDevice&, u32 start_lba);
|
|
explicit MBRPartitionTable(const StorageDevice&);
|
|
MBRPartitionTable(const StorageDevice&, u32 start_lba);
|
|
|
|
bool is_protective_mbr() const;
|
|
bool contains_ebr() const;
|
|
virtual bool is_valid() const override { return m_valid; };
|
|
|
|
protected:
|
|
const Header& header() const;
|
|
bool is_header_valid() const { return m_header_valid; };
|
|
|
|
private:
|
|
bool read_boot_record();
|
|
bool initialize();
|
|
bool m_valid { false };
|
|
bool m_header_valid { false };
|
|
const u32 m_start_lba;
|
|
ByteBuffer m_cached_header;
|
|
};
|
|
}
|