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ladybird/Userland/Libraries/LibPartition/PartitionTable.cpp

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Meta: Add license header to source files As suggested by Joshua, this commit adds the 2-clause BSD license as a comment block to the top of every source file. For the first pass, I've just added myself for simplicity. I encourage everyone to add themselves as copyright holders of any file they've added or modified in some significant way. If I've added myself in error somewhere, feel free to replace it with the appropriate copyright holder instead. Going forward, all new source files should include a license header.
2020-01-18 09:38:21 +01:00
/*
Kernel: Introduce a new partitioning subsystem The partitioning code was very outdated, and required a full refactor. The new subsystem removes duplicated code and uses more AK containers. The most important change is that all implementations of the PartitionTable class conform to one interface, which made it possible to remove unnecessary code in the EBRPartitionTable class. Finding partitions is now done in the StorageManagement singleton, instead of doing so in init.cpp. Also, now we don't try to find partitions on demand - the kernel will try to detect if a StorageDevice is partitioned, and if so, will check what is the partition table, which could be MBR, GUID or EBR. Then, it will create DiskPartitionMetadata object for each partition that is available in the partition table. This object will be used by the partition enumeration code to create a DiskPartition with the correct minor number.
2020-12-26 16:53:30 +02:00
* Copyright (c) 2020, Liav A. <liavalb@hotmail.co.il>
Meta: Add license header to source files As suggested by Joshua, this commit adds the 2-clause BSD license as a comment block to the top of every source file. For the first pass, I've just added myself for simplicity. I encourage everyone to add themselves as copyright holders of any file they've added or modified in some significant way. If I've added myself in error somewhere, feel free to replace it with the appropriate copyright holder instead. Going forward, all new source files should include a license header.
2020-01-18 09:38:21 +01:00
*
Everything: Move to SPDX license identifiers in all files. 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 *
2021-04-22 01:24:48 -07:00
* SPDX-License-Identifier: BSD-2-Clause
Meta: Add license header to source files As suggested by Joshua, this commit adds the 2-clause BSD license as a comment block to the top of every source file. For the first pass, I've just added myself for simplicity. I encourage everyone to add themselves as copyright holders of any file they've added or modified in some significant way. If I've added myself in error somewhere, feel free to replace it with the appropriate copyright holder instead. Going forward, all new source files should include a license header.
2020-01-18 09:38:21 +01:00
*/
Kernel+LibPartition: Move PartitionTable into LibPartition
2022-03-01 18:09:46 -05:00
#include <LibPartition/PartitionTable.h>
PartitionTable: Initial GPT Support, Adding Block Limit Also added a script to handle creation of GPT partitioned disk (with GRUB config file). Block limit will be used to disallow potential access to other partitions.
2019-10-07 03:12:37 +03:00
LibPartition: Make PartitionTable kernel/userland agnostic Previously, PartitionTable was constructed using a Kernel::StorageDevice making it only usable in the kernel. This commit adds a new constructor that takes a Core::File instead, making it usable in userland as well. This also adds the m_block_size field which stores the block size of the underlying device obtained by calling StorageDevice::block_size() in the kernel or by using the STORAGE_DEVICE_GET_BLOCK_SIZE ioctl in userland. This avoids the need for an #ifdef every time block size is needed.
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#ifndef KERNEL
# include <sys/ioctl.h>
#endif
Kernel+LibPartition: Move PartitionTable into LibPartition
2022-03-01 18:09:46 -05:00
namespace Partition {
LibPartition: Migrate from DeprecatedFile to File The implemented cloning mechanism should be sound: - If a PartitionTable is passed a File with ShouldCloseFileDescriptor::Yes, then it will keep it alive until the PartitionTable is destroyed. - If a PartitionTable is passed a File with ShouldCloseFileDescriptor::No, then the caller has to ensure that the file descriptor remains alive. If the caller is EBRPartitionTable, the same consideration holds. If the caller is PartitionEditor::PartitionModel, this is satisfied by keeping an OwnPtr<Core::File> around which is the originally opened file. Therefore, we never leak any fds, and never access a Core::File or fd after destroying it.
2023-05-21 20:33:09 +02:00
PartitionTable::PartitionTable(PartitionableDevice&& device)
: m_device(move(device))
LibPartition: Make PartitionTable kernel/userland agnostic Previously, PartitionTable was constructed using a Kernel::StorageDevice making it only usable in the kernel. This commit adds a new constructor that takes a Core::File instead, making it usable in userland as well. This also adds the m_block_size field which stores the block size of the underlying device obtained by calling StorageDevice::block_size() in the kernel or by using the STORAGE_DEVICE_GET_BLOCK_SIZE ioctl in userland. This avoids the need for an #ifdef every time block size is needed.
2022-03-20 19:59:05 -04:00
{
}
PartitionTable: Initial GPT Support, Adding Block Limit Also added a script to handle creation of GPT partitioned disk (with GRUB config file). Block limit will be used to disallow potential access to other partitions.
2019-10-07 03:12:37 +03:00
LibPartition: Make PartitionTable kernel/userland agnostic Previously, PartitionTable was constructed using a Kernel::StorageDevice making it only usable in the kernel. This commit adds a new constructor that takes a Core::File instead, making it usable in userland as well. This also adds the m_block_size field which stores the block size of the underlying device obtained by calling StorageDevice::block_size() in the kernel or by using the STORAGE_DEVICE_GET_BLOCK_SIZE ioctl in userland. This avoids the need for an #ifdef every time block size is needed.
2022-03-20 19:59:05 -04:00
Optional<DiskPartitionMetadata> PartitionTable::partition(unsigned index) const
Partition Table: Replace __attribute__((packed)) with [[gnu::packed]]
2020-02-01 18:17:50 +02:00
{
Kernel: Introduce a new partitioning subsystem The partitioning code was very outdated, and required a full refactor. The new subsystem removes duplicated code and uses more AK containers. The most important change is that all implementations of the PartitionTable class conform to one interface, which made it possible to remove unnecessary code in the EBRPartitionTable class. Finding partitions is now done in the StorageManagement singleton, instead of doing so in init.cpp. Also, now we don't try to find partitions on demand - the kernel will try to detect if a StorageDevice is partitioned, and if so, will check what is the partition table, which could be MBR, GUID or EBR. Then, it will create DiskPartitionMetadata object for each partition that is available in the partition table. This object will be used by the partition enumeration code to create a DiskPartition with the correct minor number.
2020-12-26 16:53:30 +02:00
if (index > partitions_count())
return {};
return m_partitions[index];
}
Kernel: Move all code into the Kernel namespace
2020-02-16 01:27:42 +01:00
}
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