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#!/sbin/runscript
# Copyright 1999-2010 Gentoo Technologies, Inc.
# Distributed under the terms of the GNU General Public License, v2 or later
# $Id$
MEM_SIZE=1048576
DAEMON=/usr/sbin/ietd
CONFIG_FILE=/etc/ietd.conf
PID_FILE=/var/run/ietd.pid
NAME="iSCSI Enterprise Target"
ARGS=""
[ -n "$USER" ] && ARGS="${ARGS} --uid=${USER}"
[ -n "$GROUP" ] && ARGS="${ARGS} --gid=${GROUP}"
[ -n "$ISNS" ] && ARGS="${ARGS} --isns=${ISNS}"
[ -n "$PORT" ] && ARGS="${ARGS} --port=${PORT}"
[ -n "$ADDRESS" ] && ARGS="${ARGS} --address=${ADDRESS}"
[ -n "$DEBUGLEVEL" ] && ARGS="${ARGS} --debug=${DEBUGLEVEL}"
depend() {
use net
after modules
}
checkconfig() {
if [ ! -f $CONFIG_FILE ]; then
eerror "Config file $CONFIG_FILE does not exist!"
return 1
fi
if [ -z "$DISABLE_MEMORY_WARNINGS" ]; then
check_memsize
fi
}
check_memsize() {
local wr md sysctl_key v k
for wr in r w; do
for md in max default; do
sysctl_key="net.core.${wr}mem_${md}"
v="$(sysctl -n ${sysctl_key})"
if [ "${v}" -lt "${MEM_SIZE}" ]; then
ewarn "$sysctl_key ($v) is lower than recommended ${MEM_SIZE}"
fi
done
done
for wr in "" r w; do
sysctl_key="net.ipv4.tcp_${wr}mem"
set -- $(sysctl -n ${sysctl_key})
for k in min default max ; do
if [ "${1}" -lt "${MEM_SIZE}" ]; then
ewarn "$sysctl_key:$k (${1}) is lower than recommended ${MEM_SIZE}"
fi
shift
done
done
}
do_modules() {
msg="$1"
shift
modules="$1"
shift
opts="$@"
for m in ${modules}; do
ebegin "${msg} - ${m}"
modprobe ${opts} $m
ret=$?
eend $ret
[ $ret -ne 0 ] && return $ret
done
return 0
}
start() {
checkconfig || return 1
do_modules 'Loading iSCSI-Target modules' 'iscsi_trgt'
ebegin "Starting ${NAME}"
start-stop-daemon --start --exec $DAEMON --quiet -- ${ARGS}
eend $?
}
stop() {
ebegin "Removing ${NAME} devices"
# ugly, but ietadm does not allways provides correct exit values
RETURN="$(ietadm --op delete 2>&1)"
RETVAL=$?
if [ $RETVAL -eq 0 ] && [ "$RETURN" != "something wrong" ] ; then
eend 0
else
eend 1
eerror "ietadm failed - $RETURN"
return 1
fi
ebegin "Stopping ${NAME}"
start-stop-daemon --stop --quiet --exec $DAEMON --pidfile $PID_FILE
ret=$?
eend $ret
[ $ret -ne 0 ] && return 1
# ugly, but pid file is not removed by ietd
rm -f $PID_FILE
do_modules 'Removing iSCSI-Target modules' 'iscsi_trgt' '-r'
return $?
}
# vim: tw=72:
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