-#! /bin/sh
+#! /usr/bin/perl -w
#
-# skeleton example file to build /etc/init.d/ scripts.
-# This file should be used to construct scripts for /etc/init.d.
+# System startup script for tinc
+# $Id: init.d,v 1.10 2000/05/21 22:04:56 guus Exp $
#
-# Written by Miquel van Smoorenburg <miquels@cistron.nl>.
-# Modified for Debian GNU/Linux
-# by Ian Murdock <imurdock@gnu.ai.mit.edu>.
+# Based on Lubomir Bulej's Redhat init script.
#
-# Version: @(#)skeleton 1.8 03-Mar-1998 miquels@cistron.nl
+# Create a file $NETSFILE (/etc/tinc/nets.boot), and put all the names of
+# the networks in there. These names must be valid directory names under
+# $TCONF (/etc/tinc). Lines starting with a # will be ignored in this
+# file.
#
-# This file was automatically customized by dh-make on Fri, 21 Apr 2000 17:07:50 +0200
-
-PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin
-DAEMON=/usr/sbin/tinc
-NAME=tinc
-DESC=tinc
-
-test -f $DAEMON || exit 0
-
-set -e
-
-case "$1" in
- start)
- echo -n "Starting $DESC: "
- start-stop-daemon --start --quiet --pidfile /var/run/$NAME.pid \
- --exec $DAEMON
- echo "$NAME."
- ;;
- stop)
- echo -n "Stopping $DESC: "
- start-stop-daemon --stop --quiet --pidfile /var/run/$NAME.pid \
- --exec $DAEMON
- echo "$NAME."
- ;;
- #reload)
- #
- # If the daemon can reload its config files on the fly
- # for example by sending it SIGHUP, do it here.
- #
- # If the daemon responds to changes in its config file
- # directly anyway, make this a do-nothing entry.
- #
- # echo "Reloading $DESC configuration files."
- # start-stop-daemon --stop --signal 1 --quiet --pidfile \
- # /var/run/$NAME.pid --exec $DAEMON
- #;;
- restart|force-reload)
- #
- # If the "reload" option is implemented, move the "force-reload"
- # option to the "reload" entry above. If not, "force-reload" is
- # just the same as "restart".
- #
- echo -n "Restarting $DESC: "
- start-stop-daemon --stop --quiet --pidfile \
- /var/run/$NAME.pid --exec $DAEMON
- sleep 1
- start-stop-daemon --start --quiet --pidfile \
- /var/run/$NAME.pid --exec $DAEMON
- echo "$NAME."
- ;;
- *)
- N=/etc/init.d/$NAME
- # echo "Usage: $N {start|stop|restart|reload|force-reload}" >&2
- echo "Usage: $N {start|stop|restart|force-reload}" >&2
- exit 1
- ;;
-esac
-
-exit 0
+
+my $DAEMON="/usr/sbin/tincd";
+my $NAME="tinc";
+my $DESC="tinc daemons";
+my $TCONF="/etc/tinc";
+my $EXTRA="";
+my $NETSFILE="$TCONF/nets.boot";
+my @NETS=();
+
+
+if (! -f $DAEMON) { exit 0; }
+
+
+
+sub find_nets {
+ if(! open(FH, $NETSFILE)) {
+ warn "Please create $NETSFILE.\n";
+ exit 0;
+ }
+ while (<FH>) {
+ chomp;
+ if( /^[ ]*([^ \#]+)/i ) {
+ push(@NETS, "$1");
+ }
+ }
+ if($#NETS == -1) {
+ warn "$NETSFILE doesn't contain any nets.\n";
+ exit 0;
+ }
+
+}
+
+
+##############################################################################
+# vpn_load () Loads VPN configuration
+#
+# $_[0] ... VPN to load
+
+sub vpn_load {
+ my @addr;
+ $CFG="$TCONF/$_[0]/tinc.conf";
+ if(! open($CFG, "< $CFG")) {
+ warn "tinc: $CFG does not exist\n";
+ return 0;
+ }
+
+ # load TINCD config
+ while(<$CFG>) {
+ if( /^[ ]*TapDevice[ =]+([^ \#]+)/i ) {
+ $DEV=$1;
+ chomp($DEV);
+ $DEV =~ s/^.*\/([^\/0-9]+)([0-9]+)$/$1$2/;
+ $NUM = $2;
+ } elsif ( /^[ ]*(MyOwnVPNIP|MyVirtualIP)[ =]+([^ \#]+)/i ) {
+ $VPN=$2;
+ chomp($VPN);
+ } elsif ( /^[ ]*VpnMask[ =]+([^ \#]+)/i ) {
+ $VPNMASK=$1;
+ }
+ }
+ if(!defined($DEV)) {
+ warn "tinc: There must be a TapDevice\n";
+ return 0;
+ }
+ if($DEV eq "") {
+ warn "tinc: TapDevice should be of the form /dev/tapN\n";
+ return 0;
+ }
+ if(!defined($VPN)) {
+ warn "tinc: MyVirtualIP required\n";
+ return 0;
+ }
+ if($VPN eq "") {
+ warn "tinc: No argument to MyVirtualIP/MyOwnVPNIP\n";
+ return 0;
+ }
+ if(defined($VPNMASK) && $VPNMASK eq "") {
+ warn "tinc: Invalid argument to VpnMask\n";
+ return 0;
+ }
+ if(!defined($VPNMASK) {
+ warn "tinc: No VpnMask specified. Using default 255.255.0.0\n";
+ $VPNMASK="255.255.0.0";
+ }
+
+ $ADR = $VPN;
+ $ADR =~ s/^([^\/]+)\/.*$/$1/;
+ $LEN = $VPN;
+ $LEN =~ s/^.*\/([^\/]+)$/$1/;
+ if($ADR eq "" || $LEN eq "") {
+ warn "tinc: Badly formed MyVirtualIP/MyOwnVPNIP\n";
+ return 0;
+ }
+ @addr = split(/\./, $ADR);
+
+ $ADR = pack('C4', @addr);
+ $MSK = pack('N4', -1 << (32 - $LEN));
+ $BRD = join(".", unpack('C4', $ADR | ~$MSK));
+ $MAC = "fe:fd:" . join(":", map { sprintf "%02x", $_ } unpack('C4', $ADR));
+ $VPNMASK = pack('C4', split(/\./, $VPNMASK));
+ $VPNMASK = join(".", unpack('C4', $VPNMASK));
+ $ADR = join(".", unpack('C4', $ADR));
+ $MSK = join(".", unpack('C4', $MSK));
+
+
+ 1;
+}
+
+
+##############################################################################
+# vpn_start () starts specified VPN
+#
+# $_[0] ... VPN to start
+
+sub vpn_start {
+ vpn_load($_[0]) || return 0;
+
+ system("insmod ethertap -s --name=\"ethertap$NUM\" unit=\"$NUM\" >/dev/null");
+ system("ifconfig $DEV hw ether $MAC");
+ system("ifconfig $DEV $ADR netmask $MSK broadcast $BRD -arp");
+ system("start-stop-daemon --start --quiet --pidfile /var/run/$NAME.$_[0].pid --exec $DAEMON -- -n $_[0] $EXTRA");
+}
+
+
+
+
+##############################################################################
+# vpn_stop () Stops specified VPN
+#
+# $_[0] ... VPN to stop
+
+sub vpn_stop {
+ vpn_load($_[0]) || return 1;
+
+ system("start-stop-daemon --stop --quiet --pidfile /var/run/$NAME.$_[0].pid --exec $DAEMON -- -n $_[0] $EXTRA -k");
+
+ system("ifconfig $DEV down");
+ system("rmmod ethertap$NUM -s");
+}
+
+
+if(!defined($ARGV[0])) {
+ die "Usage: /etc/init.d/$NAME {start|stop|restart|force-reload}\n";
+}
+
+if($ARGV[0] eq "start") {
+ find_nets;
+ print "Starting $DESC:";
+ foreach $n (@NETS) {
+ print " $n";
+ vpn_start($n);
+ }
+ print ".\n";
+} elsif ($ARGV[0] eq "stop") {
+ find_nets;
+ print "Stopping $DESC:";
+ foreach $n (@NETS) {
+ print " $n";
+ vpn_stop($n);
+ }
+ print ".\n";
+} elsif ($ARGV[0] eq "restart" || $ARGV[0] eq "force-reload") {
+ find_nets;
+ print "Stopping $DESC:";
+ foreach $n (@NETS) {
+ print " $n";
+ vpn_stop($n);
+ }
+ print ".\n";
+ print "Starting $DESC:";
+ foreach $n (@NETS) {
+ print " $n";
+ vpn_start($n);
+ }
+ print ".\n";
+} else {
+ die "Usage: /etc/init.d/$NAME {start|stop|restart|force-reload}\n";
+}
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