This file is indexed.

/usr/share/shorewall/macro.PPtP is in shorewall 5.1.12.2-1.

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

The actual contents of the file can be viewed below.

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#
# Shorewall -- /usr/share/shorewall/macro.PPtP Macro
#
# This macro handles PPTP traffic. NOTE: PPTP protocol is insecure.
#
###############################################################################
#ACTION	SOURCE	DEST	PROTO	DPORT	SPORT	ORIGDEST	RATE	USER

GRE

?if ( __CT_TARGET && ! $AUTOHELPERS && __PPTP_HELPER )
 PARAM	-	-	tcp	1723 { helper=pptp }
?else
 PARAM	-	-	tcp	1723
?endif