gentoo-overlay/net-firewall/shorewall/files/shorewall.systemd

#
#	The Shoreline Firewall (Shorewall) Packet Filtering Firewall - V5.0
#
[Unit]
Description=Shorewall IPv4 firewall
Documentation=man:shorewall(8) http://www.shorewall.net/Documentation_Index.html
Wants=network-online.target
After=network-online.target
Conflicts=iptables.service firewalld.service iptables-restore.service

[Service]
Type=oneshot
RemainAfterExit=yes
EnvironmentFile=/etc/conf.d/shorewall
StandardOutput=syslog
ExecStart=/sbin/shorewall $OPTIONS start $STARTOPTIONS
ExecStop=/sbin/shorewall $OPTIONS stop $STOPOPTIONS

[Install]
WantedBy=basic.target