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rdma - Infiniband/iWARP Kernel Module Initializer…  more info»

rdma.ifdown-ib

#!/bin/bash
# Network Interface Configuration System
# Copyright (c) 1996-2009 Red Hat, Inc. all rights reserved.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License, version 2,
# as published by the Free Software Foundation.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA

. /etc/init.d/functions

cd /etc/sysconfig/network-scripts
. ./network-functions

[ -f ../network ] && . ../network

CONFIG=${1}

source_config

. /etc/sysconfig/network

# Check to make sure the device is actually up
check_device_down ${DEVICE} && [ "$BOOTPROTO" != "dhcp" -a "$BOOTPROTO" != "bootp" ] && [ -n "$VLAN" -a "$VLAN" != "yes" ] && exit 0

if [ "${SLAVE}" != "yes" -o -z "${MASTER}" ]; then
if [ -n "${HWADDR}" -a -z "${MACADDR}" ]; then
    HWADDR=$(echo $HWADDR | tail -c 24)
    FOUNDMACADDR=$(get_hwaddr ${REALDEVICE} | tail -c 24)
    if [ -n "${FOUNDMACADDR}" -a "${FOUNDMACADDR}" != "${HWADDR}" ]; then
        NEWCONFIG=$(get_config_by_hwaddr ${FOUNDMACADDR})
	if [ -n "${NEWCONFIG}" ]; then
	   eval $(LANG=C grep -F "DEVICE=" $NEWCONFIG)
	else
	   net_log $"Device ${DEVICE} has MAC address ${FOUNDMACADDR}, instead of configured address ${HWADDR}. Ignoring."
	   exit 1
	fi
	if [ -n "${NEWCONFIG}" -a "${NEWCONFIG##*/}" != "${CONFIG##*/}" -a "${DEVICE}" = "${REALDEVICE}" ]; then
	   exec /sbin/ifdown ${NEWCONFIG}
	else
	   net_log $"Device ${DEVICE} has MAC address ${FOUNDMACADDR}, instead of configured address ${HWADDR}. Ignoring."
	   exit 1
	fi
    fi
fi
fi

if is_bonding_device ${DEVICE} ; then
    for device in $(LANG=C egrep -l "^[[:space:]]*MASTER=\"?${DEVICE}\"?" /etc/sysconfig/network-scripts/ifcfg-*) ; do
	is_ignored_file "$device" && continue
	/sbin/ifdown ${device##*/}
    done
    for arg in $BONDING_OPTS ; do
	key=${arg%%=*};
	[[ "${key}" != "arp_ip_target" ]] || continue
	value=${arg##*=};
	if [ "${value:0:1}" != "" ]; then
            OLDIFS=$IFS;
            IFS=',';
            for arp_ip in $value; do
		if grep -q $arp_ip /sys/class/net/${DEVICE}/bonding/arp_ip_target; then
                    echo "-$arp_ip" > /sys/class/net/${DEVICE}/bonding/arp_ip_target
		fi
            done
            IFS=$OLDIFS;
	else
	    value=${value#+};
	    if grep -q $value /sys/class/net/${DEVICE}/bonding/arp_ip_target; then
                echo "-$value" > /sys/class/net/${DEVICE}/bonding/arp_ip_target
	    fi
	fi
    done
fi

/etc/sysconfig/network-scripts/ifdown-ipv6 ${CONFIG}

retcode=0
[ -n "$(pidof -x dhclient)" ] && {
   for VER in "" 6 ; do
	if [ -f "/var/run/dhclient$VER-${DEVICE}.pid" ]; then
		dhcpid=$(cat /var/run/dhclient$VER-${DEVICE}.pid)
		if [[ "$DHCPRELEASE" = [yY1]* ]];  then
			/sbin/dhclient -r -lf /var/lib/dhclient/dhclient$VER-${DEVICE}.leases -pf /var/run/dhclient-${DEVICE}.pid ${DEVICE} >/dev/null 2>&1
			retcode=$?
		else
			kill $dhcpid >/dev/null 2>&1
			retcode=$?
			reason=STOP$VER interface=${DEVICE} /sbin/dhclient-script
		fi
		if [ -f "/var/run/dhclient$VER-${DEVICE}.pid" ]; then
			rm -f /var/run/dhclient$VER-${DEVICE}.pid
			kill $dhcpid >/dev/null 2>&1
		fi	
	fi
    done
}	
# we can't just delete the configured address because that address
# may have been changed in the config file since the device was
# brought up.  Flush all addresses associated with this
# instance instead.
if [ -d "/sys/class/net/${REALDEVICE}" ]; then
	if [ "${REALDEVICE}" = "${DEVICE}" ]; then
		ip addr flush dev ${REALDEVICE} 2>/dev/null
	else
		ip addr flush dev ${REALDEVICE} label ${DEVICE} 2>/dev/null
	fi
	
	if [ "${SLAVE}" = "yes" -a -n "${MASTER}" ]; then
		echo "-${DEVICE}" > /sys/class/net/${MASTER}/bonding/slaves 2>/dev/null
	fi

	if [ "${REALDEVICE}" = "${DEVICE}" ]; then
  		ip link set dev ${DEVICE} down 2>/dev/null
	fi
fi
[ "$retcode" = "0" ] && retcode=$?

if [ -n "${BRIDGE}" ] && [ -x /usr/sbin/brctl ]; then
      /sbin/ip link set dev ${DEVICE} down
      /usr/sbin/brctl delif ${BRIDGE} ${DEVICE}
      # Upon removing a device from a bridge,
      # it's necessary to make radvd reload its config
      [ -r /var/run/radvd/radvd.pid ] && kill -HUP $(cat /var/run/radvd/radvd.pid)
      if [ -d /sys/class/net/${BRIDGE}/brif ] && [ $(ls -1 /sys/class/net/${BRIDGE}/brif | wc -l) -eq 0 ]; then
	  /usr/sbin/brctl delbr ${BRIDGE}
      fi
fi

if [ "${TYPE}" = "Tap" ]; then
	tunctl -d "${DEVICE}" >/dev/null
fi

# wait up to 5 seconds for device to actually come down...
waited=0
while ! check_device_down ${DEVICE} && [ "$waited" -lt 50 ] ; do
    usleep 10000
    waited=$(($waited+1))
done

# don't leave an outdated key sitting around
if [ -n "${WIRELESS_ENC_KEY}" ] && [ -x /sbin/iwconfig ]; then
    /sbin/iwconfig ${DEVICE} enc 0 >/dev/null 2>&1
fi

if [ "$retcode" = 0 ] ; then
    /etc/sysconfig/network-scripts/ifdown-post $CONFIG
    # do NOT use $? because ifdown should return whether or not
    # the interface went down.
fi

if [ -n "$VLAN" ]; then
    # 802.1q VLAN
    if echo ${DEVICE} | LANG=C grep -Ev '(:)' | LANG=C grep -Eq '(eth|bond)[0-9][0-9]*\.[0-9][0-9]?[0-9]?[0-9]?' \
	|| echo ${DEVICE} | LANG=C grep -Eq 'vlan[0-9][0-9]?[0-9]?[0-9]?' ; then
	[ -f /proc/net/vlan/${DEVICE} ] && {
	    ip link delete ${DEVICE} type vlan
	}
    fi
fi

exit $retcode
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