mirror of
https://github.com/LadybirdBrowser/ladybird.git
synced 2024-12-28 13:43:45 +03:00
92 lines
2.5 KiB
C++
92 lines
2.5 KiB
C++
/*
|
|
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
|
|
* 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/Types.h>
|
|
#include <AK/Vector.h>
|
|
#include <Kernel/Devices/DiskPartition.h>
|
|
|
|
namespace Kernel {
|
|
|
|
#define GPT_SIGNATURE2 0x54524150
|
|
#define GPT_SIGNATURE 0x20494645
|
|
#define BytesPerSector 512
|
|
|
|
struct [[gnu::packed]] GPTPartitionEntry
|
|
{
|
|
u32 partition_guid[4];
|
|
u32 unique_guid[4];
|
|
|
|
u32 first_lba[2];
|
|
u32 last_lba[2];
|
|
|
|
u64 attributes;
|
|
u8 partition_name[72];
|
|
};
|
|
|
|
struct [[gnu::packed]] GPTPartitionHeader
|
|
{
|
|
u32 sig[2];
|
|
u32 revision;
|
|
u32 header_size;
|
|
u32 crc32_header;
|
|
u32 reserved;
|
|
u64 current_lba;
|
|
u64 backup_lba;
|
|
|
|
u64 first_usable_lba;
|
|
u64 last_usable_lba;
|
|
|
|
u64 disk_guid1[2];
|
|
|
|
u64 partition_array_start_lba;
|
|
|
|
u32 entries_count;
|
|
u32 partition_entry_size;
|
|
u32 crc32_entries_array;
|
|
};
|
|
|
|
class GPTPartitionTable {
|
|
|
|
public:
|
|
explicit GPTPartitionTable(BlockDevice&);
|
|
~GPTPartitionTable();
|
|
|
|
bool initialize();
|
|
RefPtr<DiskPartition> partition(unsigned index);
|
|
|
|
private:
|
|
NonnullRefPtr<BlockDevice> m_device;
|
|
|
|
const GPTPartitionHeader& header() const;
|
|
|
|
u8 m_cached_header[512];
|
|
};
|
|
|
|
}
|