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Kernel: Use DistinctNumeric for filesystem ID's

This patch adds the FileSystemID type, which is a distinct u32.
This prevents accidental conversion from arbitrary integers.
This commit is contained in:
Andreas Kling 2021-11-18 15:11:31 +01:00
parent 7c57961c61
commit e08d213830
18 changed files with 36 additions and 35 deletions

View file

@ -67,7 +67,7 @@ class ProcFSExposedComponent : public RefCounted<ProcFSExposedComponent> {
public:
StringView name() const { return m_name->view(); }
virtual ErrorOr<size_t> read_bytes(off_t, size_t, UserOrKernelBuffer&, OpenFileDescription*) const { VERIFY_NOT_REACHED(); }
virtual ErrorOr<void> traverse_as_directory(unsigned, Function<ErrorOr<void>(FileSystem::DirectoryEntryView const&)>) const { VERIFY_NOT_REACHED(); }
virtual ErrorOr<void> traverse_as_directory(FileSystemID, Function<ErrorOr<void>(FileSystem::DirectoryEntryView const&)>) const { VERIFY_NOT_REACHED(); }
virtual ErrorOr<NonnullRefPtr<ProcFSExposedComponent>> lookup(StringView) { VERIFY_NOT_REACHED(); };
virtual ErrorOr<size_t> write_bytes(off_t, size_t, const UserOrKernelBuffer&, OpenFileDescription*) { return EROFS; }
virtual ErrorOr<void> truncate(u64) { return EPERM; }
@ -105,7 +105,7 @@ class ProcFSExposedDirectory
friend class ProcFSComponentRegistry;
public:
virtual ErrorOr<void> traverse_as_directory(unsigned, Function<ErrorOr<void>(FileSystem::DirectoryEntryView const&)>) const override;
virtual ErrorOr<void> traverse_as_directory(FileSystemID, Function<ErrorOr<void>(FileSystem::DirectoryEntryView const&)>) const override;
virtual ErrorOr<NonnullRefPtr<ProcFSExposedComponent>> lookup(StringView name) override;
void add_component(const ProcFSExposedComponent&);
@ -147,7 +147,7 @@ public:
virtual ~ProcFSRootDirectory();
private:
virtual ErrorOr<void> traverse_as_directory(unsigned, Function<ErrorOr<void>(FileSystem::DirectoryEntryView const&)>) const override;
virtual ErrorOr<void> traverse_as_directory(FileSystemID, Function<ErrorOr<void>(FileSystem::DirectoryEntryView const&)>) const override;
ProcFSRootDirectory();
};