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#!/sbin/openrc-run
#
# Copyright (C) 2008 Mark Buechler <mark.buechler@gmail.com>
# Copyright (C) 2009 Bart Van Assche <bvanassche@acm.org>
# Copyright (C) 2010 Scott Bowe <scottb@sentania.net>
# This software is made available under the GPLv2 license.
#
# System startup script for the SCST core functionality.
#
# Customized for gentoo linux by Scott Bowe.
#
# Note: on most Linux distributions /bin/sh is a soft link to /bin/bash, while
# on a default Ubuntu setup /bin/sh is a soft link to /bin/dash !
opts="${opts} try_restart reload force_reload"
depend() {
use logger
}
DEFAULTFILE="/etc/conf.d/scst"
SCST_CFG=/etc/scst.conf
MODPROBE="/sbin/modprobe"
RMMOD="/sbin/rmmod"
if [ -f $DEFAULTFILE ]; then
. $DEFAULTFILE
fi
# Modules to load/unload.
#
# !!! DON'T ADD HERE TARGET DRIVERS, WHICH IMMEDIATELLY START ACCEPTING
# !!! NEW CONNECTIONS, BECAUSE AT THIS POINT ACCESS CONTROL HASN'T CONFIGURED
# !!! YET!
#
SCST_MODULES="scst scst_disk scst_vdisk"
# Return values according to LSB for all commands but status:
# 0 - success
# 1 - generic or unspecified error
# 2 - invalid or excess argument(s)
# 3 - unimplemented feature (e.g. "reload")
# 4 - insufficient privilege
# 5 - program is not installed
# 6 - program is not configured
# 7 - program is not running
#
checkconfig() {
if [ ! -f $SCST_CFG ] ; then
eerror "Please create $SCST_CFG"
return 1
fi
return 0
}
checkinstall() {
if [ ! -x `which scstadmin` ] ; then
eerror "scstadmin is not intalled"
return 1
fi
return 0
}
start() {
ebegin "Loading and configuring the mid-level SCSI target SCST"
eindent
checkconfig
checkinstall || return $?
ret=0
for module in ${SCST_MODULES}; do
einfo "Loading SCST module ${module}..."
if ! modprobe "${module}"; then
eerror "${module} failed to load"
eend $? "Failed to load SCST"
return $?
fi
done
einfo "Configuring SCST..."
eindent
if [ -f $SCST_CFG ]; then
if scstadmin -config $SCST_CFG >/dev/null 2>&1; then
einfo "SCST config was loaded"
else
eend $? "SCST config could not be loaded"
return $?
fi
else
einfo "SCST configuration file $SCST_CFG missing, skipping"
return 0
fi
eoutdent
eoutdent
einfo "SCST loaded!!!"
eend $?
}
stop() {
## Stop the service.
ebegin "Stopping the mid-level SCSI target SCST"
eindent
reverse_list=""
for module in ${SCST_MODULES}; do
reverse_list="${module} ${reverse_list}"
done
for module in ${reverse_list}; do
einfo "Unloading ${module}"
if [ -e "/sys/module/${module}" ] && ! rmmod "${module}"; then
eindent
eend $? "Failed to unload ${module}"
return $?
fi
done
eoutdent
einfo "SCST unloaded!!!"
eend $?
}
restart() {
## Stop and restart the service if the service is already running,
## otherwise start the service.
stop
sleep 3
start
}
try_restart() {
## Restart the service if the service is already running.
status >/dev/null 2>&1 && restart
}
reload() {
## Cause the configuration of the service to be reloaded without
## actually stopping and restarting the service.
einfo "Reloading SCST configuration"
eindent
if scstadmin -config $SCST_CFG >/dev/null 2>&1; then
ret=0
ebegin "SCST config reloaded"
else
eend $? "SCST config could not be releaded"
exit 1
fi
}
force_reload() {
## Cause the configuration to be reloaded if the service supports this,
## otherwise restart the service if it is running.
einfo "Reloading SCST configuration"
eindent
if scstadmin -config $SCST_CFG >/dev/null 2>&1; then
ret=0
ebegin "SCST config reloaded"
else
restart
fi
}
status() {
## Print the current status of the service.
einfo "SCST status: "
eindent
for module in ${SCST_MODULES}; do
if [ ! -e "/sys/module/${module}" ]; then
einfo "${module} not loaded"
ret=3
eend $ret
return $ret
fi
done
ret=0
ebegin "SCST modules loaded OK"
eend $ret
}
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