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|
#!/bin/bash
#
### BEGIN INIT INFO
# Provides: quagga
# Required-Start: $local_fs $network $remote_fs $syslog
# Required-Stop: $local_fs $network $remote_fs $syslog
# Default-Start: 2 3 4 5
# Default-Stop: 0 1 6
# Short-Description: start and stop the Quagga routing suite
# Description: Quagga is a routing suite for IP routing protocols like
# BGP, OSPF, RIP and others. This script contols the main
# daemon "quagga" as well as the individual protocol daemons.
### END INIT INFO
#
PATH=/bin:/usr/bin:/sbin:/usr/sbin
D_PATH=/usr/lib/quagga
C_PATH=/etc/quagga
V_PATH=/var/run/quagga
# Local Daemon selection may be done by using /etc/quagga/daemons.
# See /usr/share/doc/quagga/README.Debian.gz for further information.
# Keep zebra first and do not list watchquagga!
DAEMONS="zebra bgpd ripd ripngd ospfd ospf6d isisd babeld pimd"
MAX_INSTANCES=5
RELOAD_SCRIPT=/usr/lib/quagga/quagga-reload.py
. /lib/lsb/init-functions
if [ -f /usr/lib/quagga/ssd ]; then
SSD=/usr/lib/quagga/ssd
else
SSD=`which start-stop-daemon`
fi
# Print the name of the pidfile.
pidfile()
{
echo "$V_PATH/$1.pid"
}
# Print the name of the vtysh.
vtyfile()
{
echo "$V_PATH/$1.vty"
}
# Check if daemon is started by using the pidfile.
started()
{
[ ! -e `pidfile $1` ] && return 3
if [ -n "$2" ] && [ "$2" == "log" ]; then
status_of_proc -p `pidfile $1` $1 $1 && return 0 || return $?
else
kill -0 `cat \`pidfile $1\`` 2> /dev/null || return 1
return 0
fi
}
# Loads the config via vtysh -b if configured to do so.
vtysh_b ()
{
# Rember, that all variables have been incremented by 1 in convert_daemon_prios()
if [ "$vtysh_enable" = 2 -a -f $C_PATH/Quagga.conf ]; then
/usr/bin/vtysh -b -n
fi
}
# Check if the daemon is activated and if its executable and config files
# are in place.
# params: daemon name
# returns: 0=ok, 1=error
check_daemon()
{
# If the integrated config file is used the others are not checked.
if [ -r "$C_PATH/Quagga.conf" ]; then
return 0
fi
# vtysh_enable has no config file nor binary so skip check.
# (Not sure why vtysh_enable is in this list but does not hurt)
if [ $1 != "watchquagga" -a $1 != "vtysh_enable" ]; then
# check for daemon binary
if [ ! -x "$D_PATH/$1" ]; then return 1; fi
# check for config file
if [ -n "$2" ]; then
if [ ! -r "$C_PATH/$1-$2.conf" ]; then
touch "$C_PATH/$1-$2.conf"
chown quagga:quagga "$C_PATH/$1-$2.conf"
fi
elif [ ! -r "$C_PATH/$1.conf" ]; then
touch "$C_PATH/$1.conf"
chown quagga:quagga "$C_PATH/$1.conf"
fi
fi
return 0
}
# Starts the server if it's not alrady running according to the pid file.
# The Quagga daemons creates the pidfile when starting.
start()
{
ulimit -n $MAX_FDS
if [ "$1" = "watchquagga" ]; then
# We may need to restart watchquagga if new daemons are added and/or
# removed
if started "$1" ; then
stop watchquagga
else
# Echo only once. watchquagga is printed in the stop above
echo -n " $1"
fi
if [ -e /var/run/quagga/watchquagga.started ] ; then
rm /var/run/quagga/watchquagga.started
fi
${SSD} \
--start \
--pidfile=`pidfile $1` \
--exec "$D_PATH/$1" \
-- \
"${watchquagga_options[@]}"
for i in `seq 1 10`;
do
if [ -e /var/run/quagga/watchquagga.started ] ; then
break
else
sleep 1
fi
done
elif [ -n "$2" ]; then
echo -n " $1-$2"
if ! check_daemon $1 $2 ; then
echo -n " (binary does not exist)"
return;
fi
${SSD} \
--start \
--pidfile=`pidfile $1-$2` \
--exec "$D_PATH/$1" \
-- \
`eval echo "$""$1""_options"` -n "$2"
else
echo -n " $1"
if ! check_daemon $1; then
echo -n " (binary does not exist)"
return;
fi
${SSD} \
--start \
--pidfile=`pidfile $1` \
--exec "$D_PATH/$1" \
-- \
`eval echo "$""$1""_options"`
fi
}
# Stop the daemon given in the parameter, printing its name to the terminal.
stop()
{
local inst
if [ -n "$2" ]; then
inst="$1-$2"
else
inst="$1"
fi
if ! started "$inst" ; then
echo -n " ($inst)"
return 0
else
PIDFILE=`pidfile $inst`
PID=`cat $PIDFILE 2>/dev/null`
${SSD} --stop --quiet --retry=TERM/30/KILL/5 --oknodo --pidfile "$PIDFILE" --exec "$D_PATH/$1"
#
# Now we have to wait until $DAEMON has _really_ stopped.
#
if test -n "$PID" && kill -0 $PID 2>/dev/null; then
echo -n " (waiting) ."
cnt=0
while kill -0 $PID 2>/dev/null; do
cnt=`expr $cnt + 1`
if [ $cnt -gt 60 ]; then
# Waited 120 secs now, fail.
echo -n "Failed.. "
break
fi
sleep 2
echo -n "."
done
fi
echo -n " $inst"
rm -f `pidfile $inst`
rm -f `vtyfile $inst`
fi
}
# Converts values from /etc/quagga/daemons to all-numeric values.
convert_daemon_prios()
{
for name in $DAEMONS zebra vtysh_enable watchquagga_enable; do
# First, assign the value set by the user to $value
eval value=\${${name}:0:3}
# Daemon not activated or entry missing?
if [ "$value" = "no" -o "$value" = "" ]; then value=0; fi
# These strings parsed for backwards compatibility.
if [ "$value" = "yes" -o "$value" = "true" ]; then
value=1;
fi
# Zebra is threatened special. It must be between 0=off and the first
# user assigned value "1" so we increase all other enabled daemons' values.
if [ "$name" != "zebra" -a "$value" -gt 0 ]; then value=`expr "$value" + 1`; fi
# If e.g. name is zebra then we set "zebra=yes".
eval $name=$value
done
}
# Starts watchquagga for all wanted daemons.
start_watchquagga()
{
local daemon_name
local daemon_prio
local found_one
local daemon_inst
# Start the monitor daemon only if desired.
if [ 0 -eq "$watchquagga_enable" ]; then
return
fi
# Check variable type
if ! declare -p watchquagga_options | grep -q '^declare \-a'; then
echo
echo "ERROR: The variable watchquagga_options from /etc/quagga/debian.cnf must be a BASH array!"
echo "ERROR: Please convert config file and restart!"
exit 1
fi
# Which daemons have been started?
found_one=0
for daemon_name in $DAEMONS; do
eval daemon_prio=\$$daemon_name
if [ "$daemon_prio" -gt 0 ]; then
eval "daemon_inst=\${${daemon_name}_instances//,/ }"
if [ -n "$daemon_inst" ]; then
for inst in ${daemon_inst}; do
eval "inst_disable=\${${daemon_name}_${inst}}"
if [ -z ${inst_disable} ] || [ ${inst_disable} != 0 ]; then
if check_daemon $daemon_name $inst; then
watchquagga_options+=("${daemon_name}-${inst}")
fi
fi
done
else
if check_daemon $daemon_name; then
watchquagga_options+=($daemon_name)
fi
fi
found_one=1
fi
done
# Start if at least one daemon is activated.
if [ $found_one -eq 1 ]; then
echo -n "Starting Quagga monitor daemon:"
start watchquagga
echo "."
fi
}
# Stopps watchquagga.
stop_watchquagga()
{
echo -n "Stopping Quagga monitor daemon:"
stop watchquagga
echo "."
}
# Stops all daemons that have a lower level of priority than the given.
# (technically if daemon_prio >= wanted_prio)
stop_prio()
{
local wanted_prio
local daemon_prio
local daemon_list
local daemon_inst
local inst
if [ -n "$2" ] && [[ "$2" =~ (.*)-(.*) ]]; then
daemon=${BASH_REMATCH[1]}
inst=${BASH_REMATCH[2]}
else
daemon="$2"
fi
wanted_prio=$1
daemon_list=${daemon:-$DAEMONS}
echo -n "Stopping Quagga daemons (prio:$wanted_prio):"
for prio_i in `seq 10 -1 $wanted_prio`; do
for daemon_name in $daemon_list; do
eval daemon_prio=\${${daemon_name}:0:3}
daemon_inst=""
if [ $daemon_prio -eq $prio_i ]; then
eval "daemon_inst=\${${daemon_name}_instances//,/ }"
if [ -n "$daemon_inst" ]; then
for i in ${daemon_inst}; do
if [ -n "$inst" ] && [ "$i" == "$inst" ]; then
stop "$daemon_name" "$inst"
elif [ x"$inst" == x ]; then
stop "$daemon_name" "$i"
fi
done
else
stop "$daemon_name"
fi
fi
done
done
echo "."
if [ -z "$inst" ]; then
# Now stop other daemons that're prowling, coz the daemons file changed
echo -n "Stopping other quagga daemons"
if [ -n "$daemon" ]; then
eval "file_list_suffix="$V_PATH"/"$daemon*""
else
eval "file_list_suffix="$V_PATH/*""
fi
for pidfile in $file_list_suffix.pid; do
PID=`cat $pidfile 2>/dev/null`
${SSD} --stop --quiet --oknodo --pidfile "$pidfile"
echo -n "."
rm -rf "$pidfile"
done
echo "."
echo -n "Removing remaining .vty files"
for vtyfile in $file_list_suffix.vty; do
rm -rf "$vtyfile"
done
echo "."
fi
}
# Starts all daemons that have a higher level of priority than the given.
# (technically if daemon_prio <= wanted_prio)
start_prio()
{
local wanted_prio
local daemon_prio
local daemon_list
local daemon_name
local daemon_inst
local inst
if [ -n "$2" ] && [[ "$2" =~ (.*)-(.*) ]]; then
daemon=${BASH_REMATCH[1]}
inst=${BASH_REMATCH[2]}
else
daemon="$2"
fi
wanted_prio=$1
daemon_list=${daemon:-$DAEMONS}
echo -n "Starting Quagga daemons (prio:$wanted_prio):"
for prio_i in `seq 1 $wanted_prio`; do
for daemon_name in $daemon_list; do
eval daemon_prio=\$${daemon_name}
daemon_inst=""
if [ $daemon_prio -eq $prio_i ]; then
eval "daemon_inst=\${${daemon_name}_instances//,/ }"
if [ -n "$daemon_inst" ]; then
if [ `echo "$daemon_inst" | wc -w` -gt ${MAX_INSTANCES} ]; then
echo "Max instances supported is ${MAX_INSTANCES}. Aborting"
exit 1
fi
# Check if we're starting again by switching from single instance
# to MI version
if started "$daemon_name"; then
PIDFILE=`pidfile $daemon_name`
${SSD} \
--stop --quiet --oknodo \
--pidfile "$PIDFILE" \
--exec "$D_PATH/$daemon_name"
rm -f `pidfile $1`
rm -f `vtyfile $1`
fi
for i in ${daemon_inst}; do
if [ -n "$inst" ] && [ "$i" == "$inst" ]; then
start "$daemon_name" "$inst"
elif [ x"$inst" == x ]; then
start "$daemon_name" "$i"
fi
done
else
# Check if we're starting again by switching from
# single instance to MI version
eval "file_list_suffix="$V_PATH"/"$daemon_name-*""
for pidfile in $file_list_suffix.pid; do
${SSD} --stop --quiet --oknodo --pidfile "$pidfile"
echo -n "."
rm -rf "$pidfile"
done
for vtyfile in $file_list_suffix.vty; do
rm -rf "$vtyfile"
done
start "$daemon_name"
fi
fi
done
done
echo "."
}
check_status()
{
local daemon_name
local daemon_prio
local daemon_inst
local failed_status=0
if [ -n "$1" ] && [[ "$1" =~ (.*)-(.*) ]]; then
daemon=${BASH_REMATCH[1]}
inst=${BASH_REMATCH[2]}
else
daemon="$1"
fi
daemon_list=${daemon:-$DAEMONS}
# Which daemons have been started?
for daemon_name in $daemon_list; do
eval daemon_prio=\$$daemon_name
if [ "$daemon_prio" -gt 0 ]; then
eval "daemon_inst=\${${daemon_name}_instances//,/ }"
if [ -n "$daemon_inst" ]; then
for i in ${daemon_inst}; do
if [ -n "$inst" -a "$inst" = "$i" ]; then
started "$1" "log" || failed_status=$?
elif [ -z "$inst" ]; then
started "$daemon_name-$i" "log" || failed_status=$?
fi
done
else
started "$daemon_name" "log" || failed_status=$?
fi
fi
done
# All daemons that need to have been started are up and running
return $failed_status
}
#########################################################
# Main program #
#########################################################
# Config broken but script must exit silently.
[ ! -r "$C_PATH/daemons" ] && exit 0
# Load configuration
. "$C_PATH/daemons"
. "$C_PATH/debian.conf"
# Read configuration variable file if it is present
[ -r /etc/default/quagga ] && . /etc/default/quagga
MAX_INSTANCES=${MAX_INSTANCES:=5}
# Set priority of un-startable daemons to 'no' and substitute 'yes' to '0'
convert_daemon_prios
if [ ! -d $V_PATH ]; then
echo "Creating $V_PATH"
mkdir -p $V_PATH
chown quagga:quagga $V_PATH
chmod 755 /$V_PATH
fi
if [ -n "$3" ] && [ "$3" != "all" ]; then
dmn="$2"-"$3"
elif [ -n "$2" ] && [ "$2" != "all" ]; then
dmn="$2"
fi
case "$1" in
start)
# Try to load this necessary (at least for 2.6) module.
if [ -d /lib/modules/`uname -r` ] ; then
echo "Loading capability module if not yet done."
set +e; LC_ALL=C modprobe -a capability 2>&1 | egrep -v "(not found|Can't locate)"; set -e
fi
# Start all daemons
cd $C_PATH/
if [ "$2" != "watchquagga" ]; then
start_prio 10 $dmn
fi
start_watchquagga
vtysh_b
;;
1|2|3|4|5|6|7|8|9|10)
# Stop/start daemons for the appropriate priority level
stop_prio $1
start_prio $1
vtysh_b
;;
stop|0)
# Stop all daemons at level '0' or 'stop'
stop_watchquagga
if [ "$dmn" != "watchquagga" ]; then
[ -n "${dmn}" ] && eval "${dmn/-/_}=0"
stop_prio 0 $dmn
fi
if [ -z "$dmn" -o "$dmn" = "zebra" ]; then
echo "Removing all routes made by zebra."
ip route flush proto zebra
else
[ -n "$dmn" ] && eval "${dmn/-/_}=0"
start_watchquagga
fi
;;
reload)
# Just apply the commands that have changed, no restart necessary
[ ! -x "$RELOAD_SCRIPT" ] && echo "quagga-reload script not available" && exit 0
NEW_CONFIG_FILE="${2:-$C_PATH/Quagga.conf}"
[ ! -r $NEW_CONFIG_FILE ] && echo "Unable to read new configuration file $NEW_CONFIG_FILE" && exit 1
echo "Applying only incremental changes to running configuration from Quagga.conf"
"$RELOAD_SCRIPT" --reload /etc/quagga/Quagga.conf
exit $?
;;
status)
check_status $dmn
exit $?
;;
restart|force-reload)
$0 stop $dmn
sleep 1
$0 start $dmn
;;
*)
echo "Usage: /etc/init.d/quagga {start|stop|status|reload|restart|force-reload|<priority>} [daemon]"
echo " E.g. '/etc/init.d/quagga 5' would start all daemons with a prio 1-5."
echo " reload applies only modifications from the running config to all daemons."
echo " reload neither restarts starts any daemon nor starts any new ones."
echo " Read /usr/share/doc/quagga/README.Debian for details."
exit 1
;;
esac
echo "Exiting from the script"
exit 0
|