Method pidFDOpen

pkg/sentry/kernel/pidfd.go:109–129

(pid *pid, isThread bool, nonBlock bool)

}

func (t *Task) pidFDOpen(pid *pid, isThread bool, nonBlock bool) (*vfs.FileDescription, error) {
	f := &pidFD{
		isThread: isThread,
		pid:      pid,
	}

	vd := t.Kernel().VFS().NewAnonVirtualDentry("[pidfd]")
	defer vd.DecRef(t)
	var flags uint32
	if nonBlock {
		flags |= linux.O_NONBLOCK
	}

	err := f.vfsFD.Init(f, flags, t.Credentials(), vd.Mount(), vd.Dentry(), &vfs.FileDescriptionOptions{
		UseDentryMetadata: true,
	})
	if err != nil {
		return nil, err
	}
	return &f.vfsFD, nil
}

// PIDFDGetFD helps implement the Linux syscall pidfd_getfd(2).
func (t *Task) PIDFDGetFD(pidfd int32, targetfd int32, flags uint32) (uintptr, error) {