From 269067bb22e8f80deb43d3ac903f4e0d67af63d2 Mon Sep 17 00:00:00 2001 From: Ivo Timmermans Date: Sat, 13 May 2000 00:54:27 +0000 Subject: [PATCH] Perl version of the system startup script. --- debian/init.d | 334 +++++++++++++++++++------------------------------- 1 file changed, 125 insertions(+), 209 deletions(-) diff --git a/debian/init.d b/debian/init.d index 16b09613..c9a75fcb 100644 --- a/debian/init.d +++ b/debian/init.d @@ -1,142 +1,111 @@ -#! /bin/sh -x +#! /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 1.3 2000/05/13 00:54:27 zarq Exp $ # -# Written by Miquel van Smoorenburg . -# Modified for Debian GNU/Linux -# by Ian Murdock . -# -# Version: @(#)skeleton 1.8 03-Mar-1998 miquels@cistron.nl -# -# 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/tincd -NAME=tinc -DESC="tinc daemons" -NETS="test2" - -TCONF="/etc/tinc" -test -f $DAEMON || exit 0 +my $DAEMON="/usr/sbin/tincd"; +my $NAME="tinc"; +my $DESC="tinc daemons"; +my $NETS="test2"; +my $TCONF="/etc/tinc"; +my $EXTRA="-d"; -set -e +if (! -f $DAEMON) { exit 0; } # Check the daemon -if [ ! -x $TINCD ]; then - echo "**tinc: daemon $TINCD does not exist or is not executable!" - exit -fi +if ( ! -x $DAEMON ) { + print "**tinc: daemon $DAEMON does not exist or is not executable!\n"; + exit 1; +} # Check the configuration directory -if [ ! -d $TCONF ]; then - echo "**tinc: configuration directory ($TCONF) not found!" - exit -fi +if ( ! -d $TCONF ) { + print "**tinc: configuration directory ($TCONF) not found!\n"; + exit 1; +} ############################################################################## # vpn_load () Loads VPN configuration # -# $1 ... VPN to load +# $_[0] ... VPN to load -vpn_load () { - CFG="$TCONF/$1/tinc.conf" - [ -f $CFG ] || { echo "tinc: $CFG does not exist" >&2 ; return 1; } +sub vpn_load { + my @addr; + $CFG="$TCONF/$_[0]/tinc.conf"; + open($CFG, "< $CFG") || die "tinc: $CFG does not exist"; # load TINCD config - DEV=`grep -i -e '^[[:space:]]*TapDevice' $CFG | sed 's/[[:space:]]//g; s/^.*=//g'` - VPN=`grep -i -e '^[[:space:]]*(MyOwnVPNIP|MyVirtualIP)' -E $CFG | head -1 | sed 's/[[:space:]]//g; s/^.*=//g'` - - # discourage empty and multiple entries - [ -z "$DEV" ] && \ - { echo "tinc: TapDevice required" >&2 ; return 2; } - echo $DEV | grep -q '^/dev/tap' || - { echo "tinc: TapDevice should be in form /dev/tapX" >&2 ; return 2; } - [ `echo $DEV | wc -l` -gt 1 ] && - { echo "tinc: multiple TapDevice entries not allowed" >&2 ; return 3; } - [ -z "$VPN" ] && \ - { echo "tinc: MyOwnVPNIP/MyVirtualIP required" >&2 ; return 2; } - [ `echo $VPN | wc -l` -gt 1 ] && - { echo "tinc: multiple MyOwnVPNIP/MyVirtualIP entries not allowed" >&2 ; return 3; } - echo $VPN | grep -q -x \ - '\([[:digit:]]\{1,3\}\.\)\{3\}[[:digit:]]\{1,3\}/[[:digit:]]\{1,2\}' || \ - { echo "tinc: badly formed MyOwnVPNIP/MyVirtualIP address $VPN" ; return 3; } - - # network device - TAP=`echo $DEV | cut -d"/" -f3` - NUM=`echo $TAP | sed 's/tap//'` - - # IP address, netmask length - ADR=`echo $VPN | cut -d"/" -f1` - LEN=`echo $VPN | cut -d"/" -f2` - - # Expand bitlength to netmask - MSK=""; len=$LEN - for cnt in 1 1 1 0 ; do - if [ $len -ge 8 ]; then - msk=8 - else - msk=$len - fi - - MSK="$MSK$((255 & (255 << (8 - msk))))" - [ $cnt -ne 0 ] && MSK="$MSK." - len=$((len-msk)) - done - - # Network & broadcast addresses -# BRD=`ipcalc --broadcast $ADR $MSK | cut -d"=" -f2` -# NET=`ipcalc --network $ADR $MSK | cut -d"=" -f2` - - # MAC address - MAC=`printf "fe:fd:%0.2x:%0.2x:%0.2x:%0.2x" $(echo $ADR | sed 's/\./ /g')` - echo - echo "TAP $TAP NUM $NUM ADR $ADR LEN $LEN MSK $MSK BRD $BRD NET $NET MAC $MAC" >&2 - return 0 + while(<$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); + } + } + if(!defined($DEV)) { + die "tinc: There must be a TapDevice"; + } + if($DEV eq "") { + die "tinc: TapDevice should be of the form /dev/tapN"; + } + if(!defined($VPN)) { + die "tinc: MyVirtualIP required"; + } + if($VPN eq "") { + die "tinc: No argument to MyVirtualIP/MyOwnVPNIP"; + } + $ADR = $VPN; + $ADR =~ s/^([^\/]+)\/.*$/$1/; + $LEN = $VPN; + $LEN =~ s/^.*\/([^\/]+)$/$1/; + if($ADR eq "" || $LEN eq "") { + die "tinc: Badly formed MyVirtualIP/MyOwnVPNIP"; + } + @addr = split(/\./, $ADR); + + $ADR = pack('C4', @addr); + $MSK = pack('N4', -1 << (32 - $LEN)); + $BRD = join(".", unpack('C4', $ADR | ~$MSK)); +# $NET = join(".", unpack('C4', $ADR & $MSK)); + $MAC = "fe:fd:" . join(":", map { sprintf "%02x", $_ } unpack('C4', $ADR)); + $ADR = join(".", unpack('C4', $ADR)); + $MSK = join(".", unpack('C4', $MSK)); + +# print "$DEV $VPN $NUM $LEN @addr $MAC $MASK $BRD $NET\n"; + + 1; } ############################################################################## # vpn_start () starts specified VPN # -# $1 ... VPN to start - -vpn_start () { - - vpn_load $1 || { echo "**tinc: could not vpn_load $1" >&2 ; return 1; } - - # create device file - if [ ! -c $DEV ]; then - [ -e $DEV ] && rm -f $DEV - mknod --mode=0600 $DEV c 36 $((16 + NUM)) - fi - - # load device module - { insmod ethertap --name="ethertap$NUM" unit="$NUM" 2>&1 || \ - { echo "**tinc: cannot insmod ethertap$NUM" >&2 ; return 2; } ; - } | grep -v '^Us' - - # configure the interface - ip link set $TAP address $MAC - ip link set $TAP up - ip addr flush dev $TAP 2>&1 | grep -v -x '^Nothing to flush.' - ip addr add $VPN brd $BRD dev $TAP - - # start tincd - $TINCD --net="$1" $DEBUG || \ - { echo "**tinc: could not start $TINCD" >&2; return 3; } - - # default interface route - # ip route add $NET/$LEN dev $TAP +# $_[0] ... VPN to start + +sub vpn_start { + vpn_load($_[0]) || die "tinc: could not vpn_load $_[0]"; + + if (! -c "/dev/$DEV") { + if (-e "/dev/$DEV") { + unlink("/dev/$DEV"); + } + $num = $NUM + 16; + system("echo mknod --mode=0600 /dev/$DEV c 36 $num"); + } + system("insmod ethertap -s --name=\"ethertap$NUM\" unit=\"$NUM\" >/dev/null"); + system("ifconfig $DEV hw ether $MAC"); + system("ifconfig $DEV $ADR netmask $MSK broadcast $BRD"); + system("start-stop-daemon --start --quiet --pidfile /var/run/$NAME.$_[0].pid --exec $DAEMON -- -n $_[0] $EXTRA"); +} - # setup routes - /etc/sysconfig/network-scripts/ifup-routes $TAP - return 0 -} # vpn_start ############################################################################## @@ -144,100 +113,47 @@ vpn_start () { # # $1 ... VPN to stop -vpn_stop () { +sub vpn_stop { + vpn_load($_[0]) || return 1; - vpn_load $1 || return 1 - - # flush the routing table - # ip route flush dev $TAP &> /dev/null - - # kill the tincd daemon - PID="$TPIDS/tinc.$1.pid" - if [ -f $PID ]; then - $TINCD --net="$1" --kill &> /dev/null - RET=$? - - if [ $RET -eq 0 ]; then - dly=0 - while [ $dly -le 5 ]; do - [ -f $PID ] || break - sleep 1; dly=$((dly+1)) - done - fi - - [ -f $PID ] && rm -f $PID - fi - - # bring the interface down - ip link set $TAP down &> /dev/null + system("start-stop-daemon --stop --quiet --pidfile /var/run/$NAME.$_[0].pid --exec $DAEMON -- -n $_[0] $EXTRA -k"); - # remove ethertap module - rmmod "ethertap$NUM" &> /dev/null - - return 0 -} # vpn_stop - - - - - - - -case "$1" in - start) - echo -n "Starting $DESC:" - for net in $NETS ; do - echo -n " $net" - vpn_start $net - start-stop-daemon --start --quiet --pidfile /var/run/$NAME.$net.pid \ - --exec $DAEMON -- -n $net - done - echo "." - ;; - stop) - echo -n "Stopping $DESC:" - for net in $NETS ; do - echo -n " $net" - start-stop-daemon --stop --quiet --pidfile /var/run/$NAME.$net.pid \ - --exec $DAEMON -- -n $net -k - done - echo "." - ;; - #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:" - for net in $NETS ; do - start-stop-daemon --stop --quiet --pidfile \ - /var/run/$NAME.$net.pid --exec $DAEMON -- -n $net -k - sleep 1 - start-stop-daemon --start --quiet --pidfile \ - /var/run/$NAME.$net.pid --exec $DAEMON -- -n $net - echo -n " $net" - done - echo "." - ;; - *) - N=/etc/init.d/$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 + 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") { + print "Starting $DESC:"; + foreach $n (split(" ", $NETS)) { + print " $n"; + vpn_start($n); + } + print ".\n"; +} elsif ($ARGV[0] eq "stop") { + print "Stopping $DESC:"; + foreach $n (split(" ", $NETS)) { + print " $n"; + vpn_stop($n); + } + print ".\n"; +} elsif ($ARGV[0] eq "restart" || $ARGV[0] eq "force-reload") { + print "Stopping $DESC:"; + foreach $n (split(" ", $NETS)) { + print " $n"; + vpn_stop($n); + } + print ".\n"; + print "Starting $DESC:"; + foreach $n (split(" ", $NETS)) { + print " $n"; + vpn_start($n); + } + print ".\n"; +} else { + die "Usage: /etc/init.d/$NAME {start|stop|restart|force-reload}\n"; +} -- 2.20.1