#------------------------------------------------------------------------------
# /etc/rc.d/rc390.dns_dhcp - start dns and dhcp
#
# Creation:     2007-02-03 lanspezi
# Last Update:  $Id$
#------------------------------------------------------------------------------

#
# setting user.group and rights for additional config-files of dnsmasq
# --------------------------------------------------------------------
if [ -d /etc/dnsmasq.d ]
then
    chown dns.dns /etc/dnsmasq.d/*
    chmod 600 /etc/dnsmasq.d/*
    chown dns.dns /etc/dnsmasq.d
    chmod 700 /etc/dnsmasq.d
fi

if [ "$OPT_DNS" = "yes" ]
then
    dnsmasq_msg='DNS'
    check_rdns "-REMOVE"
fi

if [ "$OPT_DHCP" = "yes" ]
then
    begin_script DHCP "configure firewall for DHCP service ..."

    case $DHCP_TYPE in
        isc-dhcpd)
            . /etc/rc.d/helper-dhcp_isc.sh
            while read ifname
            do
                case $iflist in
                    *$ifname*)
                        # ignore it, its already there
                        ;;
                    *)
                        iflist="$iflist $ifname"
                        ;;
                esac
            done < /var/run/dhcpd.iflist
            dhcpdoptions="-q -cf /etc/dhcpd.conf -lf $DHCP_LEASES_DIR/iscdhcpd.leases -pf /var/run/dhcpd.pid $iflist"
            if [ ! -f $DHCP_LEASES_DIR/iscdhcpd.leases ]
            then
                > $DHCP_LEASES_DIR/iscdhcpd.leases
            fi
            ln -s /srv/www/admin/status_dhcp-isc-dhcpd.cgi /srv/www/admin/status_dhcp.cgi
            ;;
        dnsmasq)
            if [ "$dnsmasq_msg" ]; then
                dnsmasq_msg="$dnsmasq_msg and DHCP"
            else
                dnsmasq_msg=DHCP
            fi
            . /etc/rc.d/helper-dhcp_dnsmasq.sh
            ln -s /srv/www/admin/status_dhcp-dnsmasq.cgi /srv/www/admin/status_dhcp.cgi
            ;;
        *)
            log_error "$DHCP_TYPE not supported"
            ;;
    esac
    
    conf_firewall_dhcp

    end_script

    if [ "$OPT_HTTPD" = "yes" ]
    then
        log_info "add DHCP info to webgui"
        echo "DHCP_LEASES_DIR=\"$DHCP_LEASES_DIR\"" > /var/run/dhcp_leases_dir
        httpd-menu.sh add status_dhcp.cgi DHCP '$_MT_stat' status
    fi
fi

# start services
# --------------
case ${OPT_DNS}_${OPT_DHCP}_${DHCP_TYPE} in

    yes_yes_dnsmasq | no_yes_dnsmasq | yes_no_*)
        begin_script DNS_DHCP "start dnsmasq as $dnsmasq_msg server ..."

        mkdir /var/run/dnsmasq
        chown dns.dns /var/run/dnsmasq
        dnsmasq --min-port=4096 || log_error "dnsmasq not started!"

        end_script    
        ;;
    yes_yes_isc-dhcpd)
        begin_script DNS_DHCP "start dnsmasq as DNS and isc-dhcpd as DHCP server ..."

        mkdir /var/run/dnsmasq
        chown dns.dns /var/run/dnsmasq
        dnsmasq --min-port=4096 || log_error "dnsmasq not started!"
        dhcpd $dhcpdoptions || log_error "isc-dhcpd not started!"

        end_script 
        ;;   
    no_yes_isc-dhcpd)
        begin_script DNS_DHCP "start isc-dhcpd as DHCP server ..."

        dhcpd $dhcpdoptions || log_error "isc-dhcpd not started!"

        end_script    
        ;;
    *)
        log_info "no DNS and DHCP server selected (${OPT_DNS}_${OPT_DHCP}_${DHCP_TYPE}) ..."
        ;;
esac

case $OPT_DHCPRELAY in
    yes)
        begin_script DHCRELAY "starting dhcprelay ..."

        idx=1
        interfaces=""
        while [ $idx -le $DHCPRELAY_IF_N ]
        do
            eval iface='$DHCPRELAY_IF_'$idx

            get_count INPUT
            ins_rule filter INPUT "prot:udp  if:$iface:any 68 67 ACCEPT" $res "dhcprelay access"

            interfaces=$interfaces' -i '$iface
            idx=`expr $idx + 1`
        done
        dhcrelay $interfaces $DHCPRELAY_SERVER

        end_script
    ;;
esac