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Current File : //sbin/ifup

#!/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

unset WINDOW # defined by screen, conflicts with our usage

. /etc/init.d/functions

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

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

CONFIG=${1}

[ -z "${CONFIG}" ] && {
    echo $"Usage: ifup <device name>" >&2
    exit 1
}

need_config "${CONFIG}"

[ -f "${CONFIG}" ] || {
    echo $"$0: configuration for ${1} not found." >&2
    echo $"Usage: ifup <device name>" >&2
    exit 1
}

if [ ${UID} != 0 ]; then
    if [ -x /usr/sbin/usernetctl ]; then
	source_config
	if /usr/sbin/usernetctl ${CONFIG} report ; then
	    exec /usr/sbin/usernetctl ${CONFIG} up
	fi
    fi
    echo $"Users cannot control this device." >&2
    exit 1
fi

source_config

if [ "foo$2" = "fooboot" ] && [ "${ONBOOT}" = "no" -o "${ONBOOT}" = "NO" ]
then
    exit 0
fi
if [ -n "$IN_HOTPLUG" ] && [ "${HOTPLUG}" = "no" -o "${HOTPLUG}" = "NO" ]
then
    exit 0
fi
if [ -n "$IN_HOTPLUG" -a "${TYPE}" = "Bridge" ]; 
then
    exit 0
fi

if [ "$USE_NM" = "true" -a -n "$UUID" ]; then
    nmcli con up uuid "$UUID"
    exit $?
fi

# Ethernet 802.1Q VLAN support
if [ "${VLAN}" = "yes" ] && [ "$ISALIAS" = "no" ] && [ -n "$DEVICE" ]; then
    if [ -n "${VID}" ]; then
        if test -z "$PHYSDEV"; then
            net_log $"PHYSDEV should be set for device ${DEVICE}"
            exit 1
        fi
    else
        VID=""
        MATCH='^.+\.[0-9]{1,4}$'
        if [[ "${DEVICE}" =~ $MATCH ]]; then
            VID=$(echo "${DEVICE}" | LC_ALL=C sed 's/^.*\.\([0-9]\+\)/\1/')
            PHYSDEV=${DEVICE%.*}
        fi
        MATCH='^vlan[0-9]{1,4}?'
         if [[ "${DEVICE}" =~ $MATCH ]]; then
             VID=$(echo "${DEVICE}" | LC_ALL=C sed 's/^vlan0*//')
             # PHYSDEV should be set in ifcfg-vlan* file
             if test -z "$PHYSDEV"; then
                net_log $"PHYSDEV should be set for device ${DEVICE}"
                exit 1
             fi
        fi
    fi
    if [ -n "$VID" ]; then
	if [ ! -d /proc/net/vlan ]; then
            if ! modprobe 8021q >/dev/null 2>&1 ; then
		net_log $"No 802.1Q VLAN support available in kernel for device ${DEVICE}"
		exit 1
	    fi
	fi

	is_available ${PHYSDEV} || {
	    if [ "$?" = "1" ] ; then
		net_log $"$alias device ${DEVICE} does not seem to be present, delaying initialization."
		exit 1
	    else
		exit 0
	    fi
	}

	# Link on Physical device needs to be up but no ip required
	check_device_down ${PHYSDEV} && {
	    ip -o link set dev ${PHYSDEV} up
	}

	if [ ! -f /proc/net/vlan/${DEVICE} ]; then
	    if [ "${REORDER_HDR}" = "no" -o "${REORDER_HDR}" = "0" ]; then
		FLAG_REORDER_HDR="reorder_hdr off"
	    fi

	    ip link add dev ${DEVICE} link ${PHYSDEV} type vlan id ${VID} ${FLAG_REORDER_HDR} || {
		(/usr/bin/logger -p daemon.info -t ifup \
		    $"ERROR: could not add vlan ${VID} as ${DEVICE} on dev ${PHYSDEV}" &)&
		net_log $"ERROR: could not add vlan ${VID} as ${DEVICE} on dev ${PHYSDEV}"
		exit 1
	    }
	fi

        VDEV=`echo ${DEVICE} | sed -n 's/\(.\+\)\.\([0-9]\{1,4\}\)$/\1\/\2/p'`
        if [ ! "${VDEV}" = "" ]; then

            FILELIST=""
            for FILE in /etc/sysctl.d/* ; do
                is_ignored_file "${FILE}" && continue
                test -f "${FILE}" && FILELIST=${FILELIST}" "${FILE}
            done

            grep -h "\.${VDEV}\." /etc/sysctl.conf ${FILELIST} | grep -v -e "^\s*;" -e "^\s*#" | sed -n 's/^\s*\(\S\+\)\s*=\s*\(\S\+\)/\1=\2/p' |
            while read LINE ; do
                sysctl -w "${LINE}"
            done
        fi
    fi
fi

# Old BOOTP variable
if [ "${BOOTP}" = "yes" ]; then
    BOOTPROTO=bootp
fi

if [ "${BOOTPROTO}" = "bootp" -o "${BOOTPROTO}" = "dhcp" ]; then
    DYNCONFIG=true
fi

if [ -x /sbin/ifup-pre-local ]; then
    /sbin/ifup-pre-local ${CONFIG} $2
fi

OTHERSCRIPT="/etc/sysconfig/network-scripts/ifup-${DEVICETYPE}"

if [ ! -x ${OTHERSCRIPT} ]; then
    OTHERSCRIPT="/etc/sysconfig/network-scripts/ifup-eth"
fi

exec ${OTHERSCRIPT} ${CONFIG} $2