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/*
* Copyright (c) 2021, sin-ack <sin-ack@protonmail.com>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <Kernel/FileSystem/ISO9660FS/FileSystem.h>
#include <Kernel/FileSystem/Inode.h>
namespace Kernel {
class ISO9660Inode final : public Inode {
friend ISO9660FS;
public:
virtual ~ISO9660Inode() override;
ISO9660FS& fs() { return static_cast<ISO9660FS&>(Inode::fs()); }
ISO9660FS const& fs() const { return static_cast<ISO9660FS const&>(Inode::fs()); }
// ^Inode
virtual InodeMetadata metadata() const override;
virtual ErrorOr<void> traverse_as_directory(Function<ErrorOr<void>(FileSystem::DirectoryEntryView const&)>) const override;
virtual ErrorOr<NonnullRefPtr<Inode>> lookup(StringView name) override;
virtual ErrorOr<void> flush_metadata() override;
virtual ErrorOr<NonnullRefPtr<Inode>> create_child(StringView name, mode_t, dev_t, UserID, GroupID) override;
virtual ErrorOr<void> add_child(Inode&, StringView name, mode_t) override;
virtual ErrorOr<void> remove_child(StringView name) override;
virtual ErrorOr<void> replace_child(StringView name, Inode& child) override;
virtual ErrorOr<void> chmod(mode_t) override;
virtual ErrorOr<void> chown(UserID, GroupID) override;
virtual ErrorOr<void> truncate(u64) override;
virtual ErrorOr<void> update_timestamps(Optional<Time> atime, Optional<Time> ctime, Optional<Time> mtime) override;
private:
// HACK: The base ISO 9660 standard says the maximum filename length is 37
// bytes large; however, we can read filenames longer than that right now
// without any problems, so let's allow it anyway.
static constexpr size_t max_file_identifier_length = 256 - sizeof(ISO::DirectoryRecordHeader);
// ^Inode
virtual ErrorOr<size_t> read_bytes_locked(off_t, size_t, UserOrKernelBuffer& buffer, OpenFileDescription*) const override;
virtual ErrorOr<size_t> write_bytes_locked(off_t, size_t, UserOrKernelBuffer const& buffer, OpenFileDescription*) override;
ISO9660Inode(ISO9660FS&, ISO::DirectoryRecordHeader const& record, StringView name);
static ErrorOr<NonnullRefPtr<ISO9660Inode>> try_create_from_directory_record(ISO9660FS&, ISO::DirectoryRecordHeader const& record, StringView name);
static InodeIndex get_inode_index(ISO::DirectoryRecordHeader const& record, StringView name);
static StringView get_normalized_filename(ISO::DirectoryRecordHeader const& record, Bytes buffer);
void create_metadata();
time_t parse_numerical_date_time(ISO::NumericalDateAndTime const&);
InodeMetadata m_metadata;
ISO::DirectoryRecordHeader m_record;
};
}
using Kernel::ISO::has_any_flag;
using Kernel::ISO::has_flag;
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