serenity/Kernel/FileSystem/InodeFile.h
Andreas Kling d84299c7be Kernel: Allow fchmod() and fchown() on pre-bind() local sockets
In order to ensure a specific owner and mode when the local socket
filesystem endpoint is instantiated, we need to be able to call
fchmod() and fchown() on a socket fd between socket() and bind().

This is because until we call bind(), there is no filesystem inode
for the socket yet.
2020-01-03 20:14:56 +01:00

40 lines
1.3 KiB
C++

#pragma once
#include <Kernel/FileSystem/File.h>
class Inode;
class InodeFile final : public File {
public:
static NonnullRefPtr<InodeFile> create(NonnullRefPtr<Inode>&& inode)
{
return adopt(*new InodeFile(move(inode)));
}
virtual ~InodeFile() override;
const Inode& inode() const { return *m_inode; }
Inode& inode() { return *m_inode; }
virtual bool can_read(const FileDescription&) const override { return true; }
virtual bool can_write(const FileDescription&) const override { return true; }
virtual ssize_t read(FileDescription&, u8*, ssize_t) override;
virtual ssize_t write(FileDescription&, const u8*, ssize_t) override;
virtual KResultOr<Region*> mmap(Process&, FileDescription&, VirtualAddress preferred_vaddr, size_t offset, size_t size, int prot) override;
virtual String absolute_path(const FileDescription&) const override;
virtual KResult truncate(off_t) override;
virtual KResult chown(uid_t, gid_t) override;
virtual KResult chmod(mode_t) override;
virtual const char* class_name() const override { return "InodeFile"; }
virtual bool is_seekable() const override { return true; }
virtual bool is_inode() const override { return true; }
private:
explicit InodeFile(NonnullRefPtr<Inode>&&);
NonnullRefPtr<Inode> m_inode;
};