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Kernel: Add a method to determine the desired permissions of a Device

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This method will be used later in DevFS, to set the appropriate
permissions for each device node.
This commit is contained in:
Liav A 2020-12-25 19:01:19 +02:00 • committed by Andreas Kling
parent 092a13211a
commit 18e77aa285
17 changed files with 50 additions and 0 deletions
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3
Kernel/TTY/MasterPTY.h
View file

@ -48,6 +48,9 @@ public:
virtual String absolute_path(const FileDescription&) const override;
// ^Device
virtual mode_t required_mode() const override { return 0640; }
private:
// ^CharacterDevice
virtual KResultOr<size_t> read(FileDescription&, size_t, UserOrKernelBuffer&, size_t) override;

3
Kernel/TTY/PTYMultiplexer.h
View file

@ -55,6 +55,9 @@ public:
void notify_master_destroyed(Badge<MasterPTY>, unsigned index);
// ^Device
virtual mode_t required_mode() const override { return 0666; }
private:
// ^CharacterDevice
virtual const char* class_name() const override { return "PTYMultiplexer"; }

3
Kernel/TTY/TTY.h
View file

@ -67,6 +67,9 @@ public:
void set_default_termios();
void hang_up();
// ^Device
virtual mode_t required_mode() const override { return 0620; }
protected:
virtual ssize_t on_tty_write(const UserOrKernelBuffer&, ssize_t) = 0;
void set_size(unsigned short columns, unsigned short rows);