;;; -*-conf-windows-*-
;;;
;;; systemd service configuration for the main tripe server.
;;;
;;; (c) 2014 Mark Wooding
;;;

;;;----- Licensing notice ---------------------------------------------------
;;;
;;; This file is part of Trivial IP Encryption (TrIPE).
;;;
;;; TrIPE is free software: you can redistribute it and/or modify it under
;;; the terms of the GNU General Public License as published by the Free
;;; Software Foundation; either version 3 of the License, or (at your
;;; option) any later version.
;;;
;;; TrIPE is distributed in the hope that it will be useful, but WITHOUT
;;; ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
;;; FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
;;; for more details.
;;;
;;; You should have received a copy of the GNU General Public License
;;; along with TrIPE.  If not, see <https://www.gnu.org/licenses/>.

[Unit]
Description=Tripe virtual private network server
Documentation=man:tripe(8)

ConditionPathExists=@sbindir@/tripe
ConditionPathExists=@bindir@/tripectl

After=syslog.target network.target

[Install]
WantedBy=multi-user.target

[Service]
Type=forking
PIDFile=/var/run/tripectl.pid

ExecStart=/bin/sh -e -c ' \
	. @initconfig@ && \
	logopt= && \
	case $${syslogp-nil} in nil) ;; *) logopt="$$logopt -l" ;; esac && \
	case $${logfile+t},$${syslogp-nil} in \
	  t,*) logopt="$$logopt -f$$logfile" ;; \
	  ,nil) logopt="$$logopt -f@logfile@" ;; \
	esac && \
	exec @bindir@/tripectl -D -s -p@sbindir@/tripe \
	  -P/var/run/tripectl.pid \
	  $$logopt \
	  $${keytag+-S-t$$keytag} \
	  $${addr+-S-b$$addr} $${port+-S-p$$port} \
	  $${user+-U$$user} $${group+-G$$group} \
	  $${sockmode+-S-m$$sockmode} \
	  $${trace+-S-t$$trace} \
	  $${tunnel+-S-n$$tunnel} \
	  $$miscopts'

ExecReload=@bindir@/tripectl RELOAD
ExecStop=@bindir@/tripectl QUIT

ExecStartPre=/bin/sh -e -c ' \
	if { test -f /proc/misc && grep -q tun /proc/misc; } || \
	   modprobe -q tun; \
	then \
	  : good; \
	else \
	  echo >&2 "tripe needs the TUN/TAP driver"; exit 1; \
	fi; \
	if test -c /dev/net/tun; then \
	  : good; \
	else \
	  echo >&2 "tripe needs /dev/net/tun, which is missing"; \
	  exit 1; \
	fi'

ExecStartPost=/bin/sh -e -c ' \
	for i in 1 2 3 4 give-up; do \
	  @bindir@/tripectl HELP >/dev/null 2>&1 && break; \
	  sleep 1; \
	done; \
	case $$i in \
	  give-up) echo >&2 "tripe daemon failed to start"; exit 1 ;; \
	esac'