This file is indexed.

/usr/hppa-linux-gnu/include/linux/if_ppp.h is in linux-libc-dev-hppa-cross 4.4.0-18.34cross1.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

1
#include <linux/ppp-ioctl.h>