RGBCube/serenity
1
Fork 0
mirror of https://github.com/RGBCube/serenity synced 2025-07-25 13:17:35 +00:00
Code Issues Activity Actions

Kernel: Move Partition code files to the Storage folder

Browse source 
This folder is more appropriate for these files.
This commit is contained in:
Liav A 2020-12-25 20:23:35 +02:00 • committed by Andreas Kling
parent 247517cd4a
commit 3a19e18d1e
10 changed files with 17 additions and 17 deletions
Download patch file Download diff file Expand all files Collapse all files

82
Kernel/Storage/Partition/MBRPartitionTable.h Normal file
View file

@ -0,0 +1,82 @@
/*
* 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/Vector.h>
#include <Kernel/Storage/Partition/DiskPartition.h>
namespace Kernel {
#define MBR_SIGNATURE 0xaa55
#define MBR_PROTECTIVE 0xEE
#define EBR_CHS_CONTAINER 0x05
#define EBR_LBA_CONTAINER 0x0F
struct [[gnu::packed]] MBRPartitionEntry
{
u8 status;
u8 chs1[3];
u8 type;
u8 chs2[3];
u32 offset;
u32 length;
};
struct [[gnu::packed]] MBRPartitionHeader
{
u8 code1[218];
u16 ts_zero;
u8 ts_drive, ts_seconds, ts_minutes, ts_hours;
u8 code2[216];
u32 disk_signature;
u16 disk_signature_zero;
MBRPartitionEntry entry[4];
u16 mbr_signature;
};
class MBRPartitionTable {
AK_MAKE_ETERNAL
public:
explicit MBRPartitionTable(NonnullRefPtr<BlockDevice>);
~MBRPartitionTable();
bool initialize();
bool is_protective_mbr() const;
bool contains_ebr() const;
RefPtr<DiskPartition> partition(unsigned index);
private:
NonnullRefPtr<BlockDevice> m_device;
const MBRPartitionHeader& header() const;
u8 m_cached_header[512];
};
}