a10e63f08e
SysFS, ProcFS and DevPtsFS were all sending filetype 0 when traversing their directories, but it is actually very easy to send proper filetypes in these filesystems. This patch binds all RAM backed filesystems to use only one enum for their internal filetype, to simplify the implementation and allow sharing of code. Please note that the Plan9FS case is currently not solved as I am not familiar with this filesystem and its constructs. The ProcFS mostly keeps track of the filetype, and a fix was needed for the /proc root directory - all processes exhibit a directory inside it which makes it very easy to hardcode the directory filetype for them. There's also the `self` symlink inode which is now exposed as DT_LNK. As for SysFS, we could leverage the fact everything inherits from the SysFSComponent class, so we could have a virtual const method to return the proper filetype. Most of the files in SysFS are "regular" files though, so the base class has a non-pure virtual method. Lastly, the DevPtsFS simply hardcodes '.' and '..' as directory file type, and everything else is hardcoded to send the character device file type, as this filesystem is only exposing character pts device files.
65 lines
3 KiB
C++
65 lines
3 KiB
C++
/*
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* Copyright (c) 2023, Liav A. <liavalb@hotmail.co.il>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <AK/StringView.h>
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#include <AK/Types.h>
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#include <Kernel/FileSystem/RAMBackedFileType.h>
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namespace Kernel {
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struct segmented_global_inode_index {
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StringView name;
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RAMBackedFileType file_type;
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u32 primary;
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u16 subdirectory;
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u32 property;
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};
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constexpr segmented_global_inode_index global_inode_ids[] = {
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{ "."sv, RAMBackedFileType::Directory, 0, 0, 1 }, // NOTE: This is here for the root directory
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{ "self"sv, RAMBackedFileType::Directory, 0, 0, 2 }
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};
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struct segmented_process_directory_entry {
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StringView name;
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RAMBackedFileType file_type;
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u16 subdirectory;
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u32 property;
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};
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constexpr segmented_process_directory_entry main_process_directory_root_entry = { "."sv, RAMBackedFileType::Directory, 0, 0 };
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constexpr segmented_process_directory_entry process_fd_subdirectory_root_entry = { "."sv, RAMBackedFileType::Directory, 1, 0 };
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constexpr segmented_process_directory_entry process_stacks_subdirectory_root_entry = { "."sv, RAMBackedFileType::Directory, 2, 0 };
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constexpr segmented_process_directory_entry process_children_subdirectory_root_entry = { "."sv, RAMBackedFileType::Directory, 3, 0 };
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constexpr segmented_process_directory_entry process_fd_directory_entry = { "fd"sv, RAMBackedFileType::Directory, 1, 0 };
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constexpr segmented_process_directory_entry process_stacks_directory_entry = { "stacks"sv, RAMBackedFileType::Directory, 2, 0 };
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constexpr segmented_process_directory_entry process_children_directory_entry = { "children"sv, RAMBackedFileType::Directory, 3, 0 };
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constexpr segmented_process_directory_entry process_unveil_list_entry = { "unveil"sv, RAMBackedFileType::Regular, 0, 1 };
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constexpr segmented_process_directory_entry process_pledge_list_entry = { "pledge"sv, RAMBackedFileType::Regular, 0, 2 };
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constexpr segmented_process_directory_entry process_fds_list_entry = { "fds"sv, RAMBackedFileType::Regular, 0, 3 };
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constexpr segmented_process_directory_entry process_exe_symlink_entry = { "exe"sv, RAMBackedFileType::Link, 0, 4 };
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constexpr segmented_process_directory_entry process_cwd_symlink_entry = { "cwd"sv, RAMBackedFileType::Link, 0, 5 };
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constexpr segmented_process_directory_entry process_perf_events_entry = { "perf_events"sv, RAMBackedFileType::Regular, 0, 6 };
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constexpr segmented_process_directory_entry process_vm_entry = { "vm"sv, RAMBackedFileType::Regular, 0, 7 };
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constexpr segmented_process_directory_entry process_cmdline_entry = { "cmdline"sv, RAMBackedFileType::Regular, 0, 8 };
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constexpr segmented_process_directory_entry main_process_directory_entries[] = {
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process_fd_directory_entry,
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process_stacks_directory_entry,
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process_children_directory_entry,
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process_unveil_list_entry,
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process_pledge_list_entry,
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process_fds_list_entry,
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process_exe_symlink_entry,
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process_cwd_symlink_entry,
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process_perf_events_entry,
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process_vm_entry,
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process_cmdline_entry,
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};
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}
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