#
# Shorewall version 5 - Drop TCPFlags Action
#
# /usr/share/shorewall/action.TCPFlags
#
#   Accepts a single optional parameter:
#
#          -     = Do not Audit
#          audit = Audit dropped packets.
#
#################################################################################

DEFAULTS -

?if passed(@1)
    ?if @1 eq 'audit'
        ?set tcpflags_action 'A_DROP'
    ?else
	?error The parameter to TCPFlags must be 'audit' or '-'
    ?endif
?else
    ?set tcpflags_action 'DROP'
?endif

$tcpflags_action	-	-	;;+ -p 6 --tcp-flags ALL FIN,URG,PSH
$tcpflags_action	-	-	;;+ -p 6 --tcp-flags ALL NONE
$tcpflags_action	-	-	;;+ -p 6 --tcp-flags SYN,RST SYN,RST
$tcpflags_action	-	-	;;+ -p 6 --tcp-flags SYN,FIN SYN,FIN
$tcpflags_action	-	-	;;+ -p tcp --syn --sport 0