Better RC script.
This commit is contained in:
Florian Pose
parent
f61e711f72
commit
0da270b561
130
ethercat.sh
130
ethercat.sh
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@ -25,74 +25,110 @@
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#
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#------------------------------------------------------------------------------
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CONFIGFILE=/etc/sysconfig/ethercat
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### BEGIN INIT INFO
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# Provides: EtherCAT
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# Required-Start:
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# Should-Start:
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# Required-Stop:
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# Should-Stop:
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# Default-Start: 3 5
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# Default-Stop: 0 1 2 6
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# Short-Description: EtherCAT master driver and network device
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# Description:
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### END INIT INFO
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#------------------------------------------------------------------------------
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print_usage()
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{
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echo "Usage: $0 { start | stop | restart }"
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}
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ETHERCAT_CONFIG=/etc/sysconfig/ethercat
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unload_module()
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{
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if lsmod | grep ^$1 > /dev/null; then
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echo " unloading module \"$1\"..."
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rmmod $1 || exit 1
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fi
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}
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test -r $ETHERCAT_CONFIG || { echo "$ETHERCAT_CONFIG not existing";
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if [ "$1" = "stop" ]; then exit 0;
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else exit 6; fi; }
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. $ETHERCAT_CONFIG
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#------------------------------------------------------------------------------
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# Get parameters
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if [ $# -eq 0 ]; then
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print_usage
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exit 1
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fi
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# Shell functions sourced from /etc/rc.status:
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# rc_check check and set local and overall rc status
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# rc_status check and set local and overall rc status
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# rc_status -v be verbose in local rc status and clear it afterwards
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# rc_status -v -r ditto and clear both the local and overall rc status
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# rc_status -s display "skipped" and exit with status 3
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# rc_status -u display "unused" and exit with status 3
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# rc_failed set local and overall rc status to failed
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# rc_failed <num> set local and overall rc status to <num>
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# rc_reset clear both the local and overall rc status
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# rc_exit exit appropriate to overall rc status
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# rc_active checks whether a service is activated by symlinks
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. /etc/rc.status
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ACTION=$1
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# Reset status of this service
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rc_reset
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# Load configuration from sysconfig
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# Return values acc. to LSB for all commands but status:
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# 0 - success
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# 1 - generic or unspecified error
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# 2 - invalid or excess argument(s)
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# 3 - unimplemented feature (e.g. "reload")
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# 4 - user had insufficient privileges
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# 5 - program is not installed
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# 6 - program is not configured
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# 7 - program is not running
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# 8--199 - reserved (8--99 LSB, 100--149 distrib, 150--199 appl)
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#
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# Note that starting an already running service, stopping
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# or restarting a not-running service as well as the restart
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# with force-reload (in case signaling is not supported) are
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# considered a success.
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if [ -f $CONFIGFILE ]; then
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. $CONFIGFILE
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else
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echo "ERROR: Configuration file \"$CONFIGFILE\" not found!"
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exit 1
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fi
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case "$1" in
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start)
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echo -n "Starting EtherCAT master... "
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case $ACTION in
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start | restart)
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echo "Starting EtherCAT master..."
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# remove incompatible modules
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for mod in 8139too 8139cp; do
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if lsmod | grep "^$mod " > /dev/null; then
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if ! rmmod $mod; then
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/bin/false
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rc_status -v
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rc_exit
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fi;
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fi;
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done
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# remove modules
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unload_module 8139too
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unload_module 8139cp
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unload_module ec_8139too
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unload_module ec_master
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modprobe ec_8139too ec_device_index=$DEVICEINDEX
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echo " loading master modules..."
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if ! modprobe ec_8139too ec_device_index=$DEVICEINDEX; then
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echo "ERROR: Failed to load module!"
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exit 1
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fi
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rc_status -v
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;;
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stop)
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echo "Stopping EtherCAT master..."
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unload_module ec_8139too
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unload_module ec_master
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echo -n "Shutting down EtherCAT master... "
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for mod in ec_8139too ec_master; do
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if lsmod | grep "^$mod " > /dev/null; then
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if ! rmmod $mod; then
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/bin/false
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rc_status -v
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rc_exit
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fi;
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fi;
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done
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if ! modprobe 8139too; then
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echo "Warning: Failed to restore 8139too module."
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fi
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rc_status -v
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;;
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*)
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print_usage
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exit 1
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esac
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restart)
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$0 stop
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$0 start
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echo "done."
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exit 0
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rc_status
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;;
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esac
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rc_exit
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#------------------------------------------------------------------------------
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