src/initscripts/networking/red

   1 #!/bin/sh
   2 ###############################################################################
   3 #                                                                             #
   4 # IPFire.org - A linux based firewall                                         #
   5 # Copyright (C) 2007-2022  IPFire Team  <info@ipfire.org>                     #
   6 #                                                                             #
   7 # This program is free software: you can redistribute it and/or modify        #
   8 # it under the terms of the GNU General Public License as published by        #
   9 # the Free Software Foundation, either version 3 of the License, or           #
  10 # (at your option) any later version.                                         #
  11 #                                                                             #
  12 # This program is distributed in the hope that it will be useful,             #
  13 # but WITHOUT ANY WARRANTY; without even the implied warranty of              #
  14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the               #
  15 # GNU General Public License for more details.                                #
  16 #                                                                             #
  17 # You should have received a copy of the GNU General Public License           #
  18 # along with this program.  If not, see <http://www.gnu.org/licenses/>.       #
  19 #                                                                             #
  20 ###############################################################################
  21
  22 . /etc/sysconfig/rc
  23 . ${rc_functions}
  24 . /etc/init.d/networking/functions.network
  25
  26 #Define some defaults
  27 INET_VLAN=7
  28 IPTV_VLAN=8
  29 ATM_DEV=0
  30
  31 eval $(/usr/local/bin/readhash /var/ipfire/main/settings)
  32 if [ "$RRDLOG" == "" ]; then
  33         RRDLOG=/var/log/rrd
  34 fi
  35
  36 eval $(/usr/local/bin/readhash /var/ipfire/ethernet/settings)
  37 eval $(/usr/local/bin/readhash /var/ipfire/dns/settings)
  38 eval $(/usr/local/bin/readhash /var/ipfire/mac/settings)
  39
  40 MAC=$(tr - : <<<$MAC)
  41 MAC1=$(tr - : <<<$MAC1)
  42 MAC2=$(tr - : <<<$MAC2)
  43
  44 TYPE="${RED_TYPE}"
  45 DEVICE="${RED_DEV}"
  46
  47 if [ "$TYPE" == "STATIC" ] || [ "$TYPE" == "DHCP" ]; then
  48         if [ "$DEVICE" == "" ]; then
  49                 boot_mesg "No device for red network. Please run setup." ${FAILURE}
  50                 echo_failure
  51                 [ "${1}" == "start" ] && exit 0
  52         fi
  53 fi
  54
  55 if [ "${TYPE}" == "STATIC" ]; then
  56         if [ "${DEVICE}" != "${GREEN_DEV}" ]; then
  57                 ADDRESS="${RED_ADDRESS}"
  58                 NETADDRESS="${RED_NETADDRESS}"
  59                 NETMASK="${RED_NETMASK}"
  60                 MTU="${RED_MTU}"
  61         else
  62                 ADDRESS="${GREEN_ADDRESS}"
  63                 NETADDRESS="${GREEN_NETADDRESS}"
  64                 NETMASK="${GREEN_NETMASK}"
  65                 MTU="${GREEN_MTU}"
  66         fi
  67         GATEWAY="${DEFAULT_GATEWAY}"
  68         # DNS1
  69         # DNS2
  70
  71         if [ -n "${ADDRESS}" -a -n "${NETMASK}" ]; then
  72                 PREFIX=`whatmask ${NETMASK} | grep -e ^CIDR | awk -F': ' '{ print $2 }' | cut -c 2-`
  73                 args="${args} ${ADDRESS}/${PREFIX}"
  74         else
  75                 boot_mesg "ADDRESS and/or NETMASK variable missing from input, cannot continue." ${FAILURE}
  76                 echo_failure
  77                 exit 1
  78         fi
  79 fi
  80
  81 case "${1}" in
  82         start)
  83                 if [ "${DEVICE}" != "${GREEN_DEV}" ] && [ "${DEVICE}" != "" ]; then
  84                         boot_mesg "Bringing up the ${DEVICE} interface..."
  85                         boot_mesg_flush
  86                         # Check if an interface is there...
  87                         if ip link show ${DEVICE} > /dev/null 2>&1; then
  88                                 link_status=`ip link show ${DEVICE} 2> /dev/null`
  89                                 if [ -n "${link_status}" ]; then
  90                                         if ! echo "${link_status}" | grep -q UP; then
  91                                                 if [ -n "$MAC" ]; then
  92                                                         boot_mesg "Setting mac address on ${DEVICE} to ${MAC}"
  93                                                         ip link set dev ${DEVICE} address ${MAC}
  94                                                         evaluate_retval
  95                                                 fi
  96                                                 ip link set ${DEVICE} up
  97                                         fi
  98                                 fi
  99                         else
 100                                 boot_mesg "Interface ${DEVICE} doesn't exist." ${FAILURE}
 101                                 echo_failure
 102                                 exit 1
 103                         fi
 104                 fi
 105
 106                 ## Create & Enable vnstat
 107                 /usr/bin/vnstat -u -i ${DEVICE} -r --enable --force > /dev/null 2>&1
 108
 109                 if [ "${TYPE}" == "STATIC" ]; then
 110                         # Set the MTU
 111                         if [ -n "${MTU}" ]; then
 112                                 if ! ip link set dev "${DEVICE}" mtu "${MTU}" &>/dev/null; then
 113                                         boot_mesg "Could not set MTU of ${MTU} to ${DEVICE}..."
 114                                         echo_warning
 115                                 fi
 116                         fi
 117
 118                         if [ "$DEVICE" != "${GREEN_DEV}" ]; then
 119                                 boot_mesg "Adding IPv4 address ${ADDRESS} to the ${DEVICE} interface..."
 120                                 ip addr add ${args} dev ${DEVICE}
 121                                 evaluate_retval
 122                         fi
 123                         echo -n "${DEVICE}" > /var/ipfire/red/iface
 124                         echo -n "${ADDRESS}"  > /var/ipfire/red/local-ipaddress
 125                         echo -n "${GATEWAY}" > /var/ipfire/red/remote-ipaddress
 126                         grep -v -E "\<gateway\>" /etc/hosts > /tmp/hosts
 127                         echo "$GATEWAY  gateway"  >> /tmp/hosts
 128                         mv /tmp/hosts /etc/hosts
 129                         touch /var/ipfire/red/active
 130
 131                         # Create route to default gateway
 132                         ip route add ${GATEWAY} dev ${DEVICE}
 133
 134                         boot_mesg "Setting up default gateway ${GATEWAY}..."
 135                         ip route add default via ${GATEWAY} dev ${DEVICE}
 136                         evaluate_retval
 137
 138                         if [ -d "/sys/class/net/${DEVICE}" ]; then
 139                                 # has carrier ?
 140                                 if [ ! "$(</sys/class/net/${DEVICE}/carrier)" = "1" ]; then
 141                                         boot_mesg -n "Wait for carrier on ${DEVICE} "
 142                                         for (( i=30; i>1; i-- )) do
 143                                                 if [ "$(</sys/class/net/${DEVICE}/carrier)" = "1" ]; then
 144                                                         break;
 145                                                 fi
 146                                                 boot_mesg -n "."
 147                                                 sleep 2
 148                                         done
 149                                         boot_mesg ""
 150                                         if [ ! "$(</sys/class/net/${DEVICE}/carrier)" = "1" ]; then
 151                                                 echo_failure
 152                                         else
 153                                                 echo_ok
 154                                         fi
 155                                 fi
 156                         fi
 157
 158                         run_subdir ${rc_base}/init.d/networking/red.up/
 159
 160                         # Configure aliases only if red static
 161                         /usr/local/bin/setaliases
 162
 163                 elif [ "${TYPE}" == "DHCP" ]; then
 164                         # Add firewall rules to allow comunication with the dhcp server on red.
 165                         iptables -A REDINPUT -p tcp --source-port 67 --destination-port 68 -i ${DEVICE} -j ACCEPT
 166                         iptables -A REDINPUT -p udp --source-port 67 --destination-port 68 -i ${DEVICE} -j ACCEPT
 167
 168                         echo -n "${DEVICE}" > /var/ipfire/red/iface
 169
 170                         # Check if the wlan-client is used on red.
 171                         # To determine this we check if a wpa_supplicant is running.
 172                         pid="$(pidof wpa_supplicant)"
 173
 174                         if [ -z "${pid}" ]; then
 175                                 # No wpa_supplicant is running. So it's save to start dhcpcd.
 176                                 dhcpcd_start "${DEVICE}"
 177                         fi
 178
 179                         ## Create & Enable vnstat
 180                         /usr/bin/vnstat -u -i ${DEVICE} -r --enable --force > /dev/null 2>&1
 181
 182                 elif [ "$TYPE" == "PPPOE" ]; then
 183
 184                         if ( ps ax | grep -q [p]ppd ); then
 185                             boot_mesg "pppd is still running." ${FAILURE}
 186                             echo_failure
 187                             exit 1
 188                         fi
 189
 190                         eval $(/usr/local/bin/readhash /var/ipfire/ppp/settings)
 191
 192                         [ -c "/dev/ppp" ] || mknod /dev/ppp c 108 0
 193
 194                         # We force the plugin method, anyway.
 195                         METHOD="PPPOE_PLUGIN"
 196
 197                         PPP_NIC=${DEVICE}
 198
 199                         if [ "$TYPE" == "pppoeatm" ] || [ "$TYPE" == "pptpatm" ]; then
 200                                 PPP_NIC=nas${ATM_DEV}
 201                                 DEVICE=nas${ATM_DEV}
 202                                 boot_mesg "Creating ATM-Bridge as $PPP_NIC ..."
 203                                 br2684ctl -c${ATM_DEV} -e${ENCAP} -a${ATM_DEV}.${VPI}.${VCI} >/dev/null 2>&1 &
 204                                 sleep 1
 205
 206                                 # use user-defined or green mac address for nas0
 207                                 if [ -n "$MAC" ]; then
 208                                         ip link set dev nas${ATM_DEV} address ${MAC}
 209                                 else
 210                                         ip link set dev nas${ATM_DEV} address $(cat /sys/class/net/green0/address)
 211                                 fi
 212
 213                                 if [ "$TYPE" == "pppoeatm" ]; then
 214                                         TYPE="pppoe"
 215                                 fi
 216                                 if [ "$TYPE" == "pptpatm" ]; then
 217                                         TYPE="pptp"
 218                                 fi
 219                         fi
 220
 221                         if [ "$TYPE" == "vdsl" ]; then
 222                                 boot_mesg "Creating VLAN Interface ${DEVICE}.${INET_VLAN} ..."
 223                                 modprobe 8021q
 224                                 vconfig add ${DEVICE} ${INET_VLAN}
 225                                 if [ -n "$MAC1" ]; then
 226                                         boot_mesg "Setting mac address on ${DEVICE}.${INET_VLAN} to ${MAC1}"
 227                                         ip link set dev ${DEVICE}.${INET_VLAN} address ${MAC1}
 228                                         evaluate_retval
 229                                 fi
 230                                 PPP_NIC=${DEVICE}.${INET_VLAN}
 231                                 sleep 0.2
 232                                 ip link set ${PPP_NIC} up
 233                                 TYPE="pppoe"
 234                         fi
 235                         if [ "${IPTV}" == "enable" ]; then
 236                                 PIDFILE="/var/run/dhcpcd/${DEVICE}.${IPTV_VLAN}.pid"
 237                                 LEASEINFO="/var/ipfire/dhcpc/dhcpcd-${DEVICE}.${IPTV_VLAN}.info"
 238                                 # Test to see if there is a stale pid file
 239                                 if [ -f "$PIDFILE" ]; then
 240                                         ps `cat "$PIDFILE"` | grep dhcpcd > /dev/null
 241                                         if [ $? != 0 ]; then
 242                                                 rm -f /var/run/dhcpcd/${DEVICE}.${IPTV_VLAN}.pid > /dev/null
 243                                         fi
 244                                 fi
 245
 246                                 if [ ! -f "$PIDFILE" ]; then
 247                                         boot_mesg "Creating VLAN Interface ${DEVICE}.${IPTV_VLAN} ..."
 248                                         modprobe 8021q
 249                                         vconfig add ${DEVICE} ${IPTV_VLAN}
 250                                         if [ -n "$MAC2" ]; then
 251                                                 boot_mesg "Setting mac address on ${DEVICE}.${IPTV_VLAN} to ${MAC2}"
 252                                                 ip link set dev ${DEVICE}.${IPTV_VLAN} address ${MAC2}
 253                                                 evaluate_retval
 254                                         fi
 255                                         boot_mesg -n "Starting dhcpcd on the ${DEVICE}.${IPTV_VLAN} interface..."
 256                                         /sbin/dhcpcd ${DEVICE}.${IPTV_VLAN} ${DHCP_START} >/dev/null 2>&1
 257                                         RET="$?"
 258
 259                                         if [ "$RET" = "0" ]; then
 260                                                 . /var/ipfire/dhcpc/dhcpcd-${DEVICE}.${IPTV_VLAN}.info
 261                                                 echo ""
 262                                                 echo_ok
 263                                                 boot_mesg "           DHCP Assigned Settings for ${DEVICE}.${IPTV_VLAN}:"
 264                                                 boot_mesg_flush
 265                                                 boot_mesg "           IP Address:      $ip_address"
 266                                                 boot_mesg_flush
 267                                                 boot_mesg "           Hostname:        $RED_DHCP_HOSTNAME"
 268                                                 boot_mesg_flush
 269                                                 boot_mesg "           Subnet Mask:     $subnet_mask"
 270                                                 boot_mesg_flush
 271                                                 boot_mesg "           Default Gateway: $routers"
 272                                                 boot_mesg_flush
 273                                                 boot_mesg "           DNS Server:      $domain_name_servers"
 274                                                 boot_mesg_flush
 275
 276                                         else
 277                                                 echo ""
 278                                                 $(exit "$RET")
 279                                                 evaluate_retval
 280                                         fi
 281                                 fi
 282                         fi
 283                         if [ "$TYPE" == "pppoe" ] || [ "$TYPE" == "pptp" ]; then
 284                                 if [ "$PPP_NIC" == "" ]; then
 285                                         boot_mesg "No device for red interface given. Check netsetup or dialprofile!" ${FAILURE}
 286                                         echo_failure
 287                                         exit 0
 288                                 fi
 289                                 boot_mesg "Bringing up the $TYPE interface on $PPP_NIC ..."
 290                                 ip addr flush dev $PPP_NIC >/dev/null 2>&1
 291                                 if [ "$TYPE" == "pptp" ]; then
 292                                         if [ "$PPTP_NICCFG" == "dhcp" ]; then
 293                                                 # Test to see if there is a stale pid file
 294                                                 if [ -f "$PIDFILE" ]; then
 295                                                         ps `cat "$PIDFILE"` | grep dhcpcd > /dev/null
 296                                                         if [ $? != 0 ]; then
 297                                                                 rm -f /var/run/dhcpcd/${DEVICE}.pid > /dev/null
 298                                                         fi
 299                                                 fi
 300
 301                                                 if [ ! -f "$PIDFILE" ]; then
 302                                                         boot_mesg -n "Starting dhcpcd on the ${DEVICE} interface..."
 303                                                         /sbin/dhcpcd ${DEVICE} ${DHCP_START} >/dev/null 2>&1
 304                                                         RET="$?"
 305
 306                                                         if [ "$RET" = "0" ]; then
 307                                                                 . /var/ipfire/dhcpc/dhcpcd-${DEVICE}.info
 308                                                                 echo ""
 309                                                                 echo_ok
 310                                                                 boot_mesg "           DHCP Assigned Settings for ${DEVICE}:"
 311                                                                 boot_mesg_flush
 312                                                                 boot_mesg "           IP Address:      $ip_address"
 313                                                                 boot_mesg_flush
 314                                                                 boot_mesg "           Hostname:        $RED_DHCP_HOSTNAME"
 315                                                                 boot_mesg_flush
 316                                                                 boot_mesg "           Subnet Mask:     $subnet_mask"
 317                                                                 boot_mesg_flush
 318                                                                 boot_mesg "           Default Gateway: $routers"
 319                                                                 boot_mesg_flush
 320                                                                 boot_mesg "           DNS Server:      $domain_name_servers"
 321                                                                 boot_mesg_flush
 322                                                                 /sbin/route add $PPTP_PEER gw $routers $PPP_NIC
 323                                                         else
 324                                                                 echo ""
 325                                                                 $(exit "$RET")
 326                                                                 evaluate_retval
 327                                                         fi
 328                                                 fi
 329                                         else
 330                                                 ip addr add $PPTP_NICCFG dev $PPP_NIC
 331                                         fi
 332                                 fi
 333                                 ip link set ${PPP_NIC} up
 334                                 if [ -n "${PPTP_ROUTE}" ]; then
 335                                         boot_mesg "Set route ${PPTP_ROUTE} to pptp server..."
 336                                         route add ${PPTP_ROUTE}
 337                                 fi
 338                         else
 339                                 boot_mesg "Bringing up the PPP via ${TYPE} on ${COMPORT}..."
 340                         fi
 341
 342                         ###                      ###
 343                         ### Configuring the pppd ###
 344                         ###                      ###
 345
 346                         ### Plugin Options
 347                         #
 348                         if [ "$TYPE" == "pppoe" ]; then
 349                                 [ "${METHOD}" == "PPPOE_PLUGIN" ] && \
 350                                         PLUGOPTS="plugin rp-pppoe.so"
 351                         fi
 352
 353                         ### Synchronous Mode
 354                         #
 355                         #PPPOE_SYNC=-s
 356                         #PPPD_SYNC=sync
 357
 358                         ### Access Concentrator Name
 359                         #
 360                         if [ -n "${CONCENTRATORNAME}" ]; then
 361                                 ACNAME="-C ${CONCENTRATORNAME}"
 362                         fi
 363
 364                         ### Service Name
 365                         #
 366                         if [ -n "${SERVICENAME}" ]; then
 367                                 if [ "${METHOD}" == "PPPOE_PLUGIN" ]; then
 368                                         PLUGOPTS+=" rp_pppoe_service ${SERVICENAME}"
 369                                 else
 370                                         SERVICENAME="-S ${SERVICENAME}"
 371                                 fi
 372                         fi
 373
 374                         ### Authentication Types
 375                         #
 376                         if [ "${AUTH}" == "pap" ]; then
 377                                 AUTH="-chap"
 378                         elif [ "${AUTH}" == "chap" ]; then
 379                                 AUTH="-pap"
 380                         else
 381                                 AUTH=""
 382                         fi
 383
 384                         ### Dial On Demand
 385                         #
 386                         if [ "${RECONNECTION}" != "persistent" ]; then
 387                                 if [ "${TIMEOUT}" != "0" ] && [ "${TIMEOUT}" != "" ]; then
 388                                         SECONDS=$[${TIMEOUT} * 60]
 389                                 else
 390                                         SECONDS=300
 391                                 fi
 392                                 if [ "${RECONNECTION}" == "dialondemand" ]; then
 393                                         touch /var/ipfire/red/dial-on-demand
 394                                         DEMAND="demand persist idle ${SECONDS} 10.112.112.112:10.112.112.113"
 395                                         DEMAND+=" ipcp-accept-remote ipcp-accept-local noipdefault ktune"
 396                                 fi
 397                         fi
 398
 399                         if [ "$TYPE" == "pppoe" ]; then
 400                                 ### When using pppoe-plugin the device has to be the last option
 401                                 #
 402                                 [ "${METHOD}" == "PPPOE_PLUGIN" ] && PLUGOPTS+=" $PPP_NIC"
 403                         fi
 404
 405                         if [ "$TYPE" == "modem" ]; then
 406                                 PLUGOPTS=" /dev/${COMPORT} ${DTERATE} connect /etc/ppp/dialer lock modem crtscts"
 407                                 METHOD="PPPOE_PLUGIN"
 408                         elif [ "$TYPE" == "serial" ]; then
 409                                 PLUGOPTS=" /dev/${COMPORT} ${DTERATE} connect /bin/true lock modem crtscts"
 410                                 METHOD="PPPOE_PLUGIN"
 411                         fi
 412
 413                         ### Standard PPP options we always use
 414                         #
 415                         PPP_STD_OPTIONS="$PLUGOPTS usepeerdns defaultroute noipdefault noauth"
 416                         PPP_STD_OPTIONS+=" default-asyncmap hide-password nodetach noipv6"
 417                         PPP_STD_OPTIONS+=" noaccomp nodeflate nopcomp novj novjccomp"
 418                         PPP_STD_OPTIONS+=" nobsdcomp user ${USERNAME} lcp-echo-interval 20"
 419                         PPP_STD_OPTIONS+=" lcp-echo-failure 5 ${AUTH}"
 420
 421                         if [ -n "${MTU}" ]; then
 422                                 PPP_STD_OPTIONS="${PPP_STD_OPTIONS} mtu ${MTU}"
 423                         fi
 424
 425                         if [ -n "${MRU}" ]; then
 426                                 PPP_STD_OPTIONS="${PPP_STD_OPTIONS} mru ${MRU}"
 427                         fi
 428
 429                         ### Debugging
 430                         #
 431                         if [ "${DEBUG}" == "on" ]; then
 432                                 DEBUG="debug"
 433                         else
 434                                 DEBUG=""
 435                         fi
 436
 437                         ### PPPoE invocation
 438                         #
 439                         if [ "$TYPE" == "pppoe" ]; then
 440                                 PPPOE_CMD="/usr/sbin/pppoe -p /var/run/ppp-ipfire.pid.pppoe -I $PPP_NIC"
 441                                 PPPOE_CMD+=" -T 80 -U $PPPOE_SYNC $ACNAME $SERVICENAMEOPT"
 442                         fi
 443
 444                         ### PPTP ###
 445                         #
 446                         if [ "$TYPE" == "pptp" ]; then
 447                                 PPPOE_CMD="pptp $PPTP_PEER --nolaunchpppd"
 448                                 METHOD=""
 449                         fi
 450
 451                         ### Run everything
 452                         #
 453                         if [ "$METHOD" == "PPPOE_PLUGIN" ]; then
 454                                 /usr/sbin/pppd $PPP_STD_OPTIONS $DEBUG $DEMAND >/dev/null 2>&1 &
 455                                 evaluate_retval
 456                                 # echo PLUGIN: /usr/sbin/pppd $PPP_STD_OPTIONS $DEBUG $DEMAND
 457                         else
 458                                 /usr/sbin/pppd pty "$PPPOE_CMD" $PPP_STD_OPTIONS $DEBUG $DEMAND $PPPD_SYNC >/dev/null 2>&1 &
 459                                 evaluate_retval
 460                                 # echo PPP: /usr/sbin/pppd pty "$PPPOE_CMD" $PPP_STD_OPTIONS $DEBUG $DEMAND $PPPD_SYNC
 461                         fi
 462                         ## Create & Enable vnstat
 463                         /usr/bin/vnstat -u -i ppp0 -r --enable --force > /dev/null 2>&1
 464                         /etc/rc.d/init.d/connectd start
 465                         # Add a NaN value to ppp0 rrd to supress spikes at reconnect
 466                         rrdtool update $RRDLOG/collectd/localhost/interface/if_octets-ppp0.rrd \
 467                                 $(date +%s):: > /dev/null 2>&1
 468                         exit 0
 469                 fi
 470                 ;;
 471
 472         stop)
 473                 rm -f /var/ipfire/red/{active,device,dial-on-demand,dns1,dns2,local-ipaddress,remote-ipaddress,resolv.conf}
 474
 475                 if [ "$TYPE" == "STATIC" ]; then
 476                         boot_mesg "Stopping default gateway ${GATEWAY}..."
 477                         ip route del default via ${GATEWAY} >/dev/null 2>&1
 478                         echo_ok
 479                         if [ "$DEVICE" != "${GREEN_DEV}" ]; then
 480                                 boot_mesg "Removing IPv4 addresses from the ${DEVICE} interface..."
 481                                 ip addr flush dev ${DEVICE}
 482                                 evaluate_retval
 483                         fi
 484                         run_subdir ${rc_base}/init.d/networking/red.down/
 485
 486                 elif [ "$TYPE" == "PPPOE" ]; then
 487                         boot_mesg "Bringing down the PPP interface ..."
 488                         ## Disable vnstat collection
 489                         /usr/bin/vnstat -u -i ppp0 -r --disable > /dev/null 2>&1
 490                         rm -f /var/ipfire/red/keepconnected
 491                         killall -w -s TERM /usr/sbin/pppd 2>/dev/null
 492                         evaluate_retval
 493                         # Add a NaN value to ppp0 rrd to supress spikes at reconnect
 494                         rrdtool update $RRDLOG/collectd/localhost/interface/if_octets-ppp0.rrd \
 495                                 $(date +%s):: > /dev/null 2>&1
 496
 497                 elif [ "$TYPE" == "DHCP" ]; then
 498                         # Check if the wlan-client is used on red.
 499                         # To determine this we check if a wpa_supplicant is running.
 500                         pid="$(pidof wpa_supplicant)"
 501
 502                         if [ -z "${pid}" ]; then
 503                                 # Stop dhcpcd.
 504                                 dhcpcd_stop "${DEVICE}"
 505                         fi
 506                 fi
 507
 508                 if [ -n "${PPTP_ROUTE}" ]; then
 509                         route del ${PPTP_ROUTE}
 510                 fi
 511
 512                 if [ "$DEVICE" != "${GREEN_DEV}" ] && [ "$DEVICE" != "" ]; then
 513                         link_status=`ip link show $DEVICE.${INET_VLAN} 2> /dev/null`
 514                         if [ -n "${link_status}" ]; then
 515                                 if echo "${link_status}" | grep -q UP; then
 516                                         boot_mesg "Bringing down the ${DEVICE}.${INET_VLAN} interface..."
 517                                         ip link set ${DEVICE}.${INET_VLAN} down
 518                                         vconfig rem ${DEVICE}.${INET_VLAN}
 519                                         evaluate_retval
 520                                 fi
 521                         else
 522                                 link_status=`ip link show $DEVICE 2> /dev/null`
 523                                 if [ -n "${link_status}" ]; then
 524                                         if echo "${link_status}" | grep -q UP; then
 525                                                 boot_mesg "Bringing down the ${DEVICE} interface..."
 526                                                 ip link set ${DEVICE} down
 527                                                 evaluate_retval
 528                                         fi
 529                                 fi
 530                         fi
 531                 fi
 532                 killall -w -s KILL /usr/sbin/pppd >/dev/null 2>&1
 533                 killall -w -s KILL pptp >/dev/null 2>&1
 534                 killall -w -s KILL br2684ctl >/dev/null 2>&1
 535
 536                 ## Disable vnstat collection
 537                 /usr/bin/vnstat -u -i ${DEVICE} -r --disable > /dev/null 2>&1
 538
 539                 exit 0;
 540                 ;;
 541 esac