#!/bin/bash

# service iscsi-server [<name>]
#     control_port <port>
#     threads <threads>
#     portal [<ip1>:]<port> [ ... ]
#     nop_interval <interval>
#     nop_count <count>
#     debug <level>

if [ "$1" = "complete" ]; then
  compgen -W "help status start stop restart reload check list_options show" "$2"
  exit 0
fi

. `dirname $0`/functions

option  control_port  standard_option            # port for tgtadm
option  threads       standard_option $(nproc)   # thread count 1..N
option  nop_interval  standard_option            # keep-alive interval in seconds
option  nop_count     standard_option            # keep-alive count
option  portal        multiple_option            # [<ip>:]<port> [ ... ]
option  debug         standard_option            # debug level
option  procname      reserved_option tgtd
option  pidfile       reserved_option /var/run/tgtd.pid
option  bin           reserved_option /usr/sbin/tgtd

SVC_VARS="opt_iscsi"
STOP_FIRST_WITH=KILL

# assign default values to certain options for compatibility purposes
function fct_end_section {
    local listener

    opt_iscsi=
    for listener in ${opt_portal[*]}; do
        opt_iscsi="${opt_iscsi}${opt_iscsi:+,}portal=${listener}"
    done

    if [ -n "$opt_nop_interval" ]; then
        opt_iscsi="${opt_iscsi}${opt_iscsi:+,}nop_interval=${opt_nop_interval}"
    fi

    if [ -n "$opt_nop_count" ]; then
        opt_iscsi="${opt_iscsi}${opt_iscsi:+,}nop_count=${opt_nop_count}"
    fi
}

function do_help {
    echo "Usage: ${0##*/} <status|start|stop|show|reload|help>"
    echo "List of config.rc options (name, type, default value, current value) :"
    echo "   - control_port <port>"
    echo "   - threads <threads>"
    echo "   - portal [<ip1>:]<port> [ ... ]"
    echo "   - nop_interval <interval>"
    echo "   - nop_count <count>"
    echo "   - debug <level>"
    exit 1 
}

function do_start {
    local instname=$2
    local ret

    echo "# Starting $svcname${instname:+[$instname]} ..."

    do_status $svcname $instname > /dev/null 2>&1
    if [ $? = 0 -a $FORCE_START_STOP -eq 0 ] ; then
        echo "  ==> Service $svcname${instname:+[$instname]} already running.";
        [ $SVC_AUTO_START -eq 0 ] && echo "  ==> please use '--force' or 'restart' instead or check with 'status'."
        return 0
    fi

    if ! ${bin} ${opt_control_port:+-C $opt_control_port} ${opt_threads:+-t $opt_threads} ${pidfile:+-p $pidfile} ${debug:+-d $debug} ${opt_iscsi:+--iscsi ${opt_iscsi}}; then
        echo "  ==> failed to start peer $svcname${instname:+[$instname]}."
    else
        echo "  ==> stop $svcname${instname:+[$instname]} : Done."
    fi
}

function do_show {
    /usr/sbin/tgtadm ${opt_control_port:+-C ${opt_control_port}} --lld=iscsi --mode=target --op=show
}

load_config