network

ARM7-S3C4510B 的源代码程序

#! /bin/sh
#
# network 1.32 1997/05/13 02:16:47 (David Hinds)
#
# Initialize or shutdown a PCMCIA ethernet adapter
#
# This script should be invoked with two arguments.  The first is the
# action to be taken, either "start", "stop", or "restart".  The
# second is the network interface name.
#
# The script passes an extended device address to 'network.opts' in
# the ADDRESS variable, to retrieve device-specific configuration
# options.  The address format is "scheme,socket,instance,hwaddr"
# where "scheme" is the current PCMCIA device configuration scheme,
# "socket" is the socket number, "instance" is used to number multiple
# interfaces in a single socket, and "hwaddr" is the card's hardware
# ethernet address.
#
# added DHCP option 06/21/97 (Yoichi Hariguchi)
#

. ./shared

# Get device attributes
get_info $DEVICE
HWADDR=`/sbin/ifconfig $DEVICE | sed -n -e 's/.*addr \(.*\)/\1/p'`

# Load site-specific settings
ADDRESS="$SCHEME,$SOCKET,$INSTANCE,$HWADDR"
. $0.opts

case "$ACTION" in

'start')

    test "$IF_PORT" && /sbin/ifport $DEVICE $IF_PORT

    if [ "$DHCP" = "y" -o "$DHCP" = "Y" ] ; then
        if [ "$DHCPSTF" ] ; then
            /usr/sbin/dhcpcd -c $DHCPSTF ${device}
        else
            /usr/sbin/dhcpcd ${device}
        fi
    elif is_true $BOOTP ; then
        /sbin/ifconfig $DEVICE up
        /sbin/route add default dev $DEVICE
        eval `/sbin/bootpc --bootfile '' --dev $DEVICE`
        /sbin/route del default
        if [ "$GATEWAYS" ] ; then
            set - $GATEWAYS ; GATEWAY=$1
        fi
    fi

    if [ "$IPADDR" != "" ] ; then

        # Basic network setup
        /sbin/ifconfig $DEVICE up $IPADDR netmask $NETMASK \
        ${BROADCAST:+broadcast $BROADCAST}

        if [ "$NETWORK" != "" ] ; then
            /sbin/route add -net $NETWORK netmask $NETMASK dev $DEVICE
        elif [ "$GATEWAY" != "" ] ; then
            /sbin/route add $GATEWAY $DEVICE
        fi

        test "$GATEWAY" && /sbin/route add default gw $GATEWAY metric 1

        # Update DNS stuff
        cp /etc/resolv.conf /etc/resolv.new
        echo "# $DEVICE begin" >> /etc/resolv.new
        test "$DOMAIN" && echo "domain $DOMAIN" >> /etc/resolv.new
        if [ "$DNSSRVS $DNS_1 $DNS_2 $DNS_3" != "   " ] ; then
            for DNS in $DNSSRVS $DNS_1 $DNS_2 $DNS_3 ; do
                echo "nameserver $DNS" >> /etc/resolv.new
            done
        fi
        echo "# $DEVICE end" >> /etc/resolv.new
        mv /etc/resolv.new /etc/resolv.conf

        # Handle NFS mounts
        if [ "$MOUNTS" != "" ] ; then
            for MT in $MOUNTS ; do mount -v $MT ; done
        fi
    fi

    if [ "$IPX_NETNUM" != "" ] ; then
        ipx_interface add $DEVICE $IPX_FRAME $IPX_NETNUM
    fi

    is_func start_fn && start_fn $DEVICE
    ;;

'stop')

    is_func stop_fn && stop_fn $DEVICE
    
    if [ "$DHCP" = "y" -o "$DHCP" = "Y" ] ; then
        `mount | awk '/type nfs/ { print "umount " $3 }'`
         /usr/sbin/dhcpcd -k
#        if ! /usr/sbin/dhcpcd -k >/dev/null 2>&1 ; then
#            /sbin/ifconfig $device down
#        fi
    elif is_true $BOOTP || [ "$IPADDR" != "" ] ; then

        # Shut down NFS mounts
        if [ "$MOUNTS" != "" ] ; then
            for MT in $MOUNTS ; do
                if mount | fgrep " on $MT type" ; then
                    fuser -s -k -m $MT
                   umount -v $MT
                fi
            done
        fi

        test "$IPX_NETNUM" && ipx_interface del $DEVICE $IPX_FRAME

        # Remove nameservers
        sed -e "/# $DEVICE begin/,/# $DEVICE end/d"	\
            < /etc/resolv.conf > /etc/resolv.new &&	\
        mv /etc/resolv.new /etc/resolv.conf

    fi
    /sbin/ifconfig $DEVICE down
    ;;

'check')
    if [ "$MOUNTS" != "" ] ; then
	for MT in $MOUNTS ; do
	    if mount | fgrep " on $MT type" ; then
		fuser -s -m $MT && exit 1
	    fi
	done
    fi
    # This is crude -- it checks for any external network activity
    netstat -ntuw | tail +3 | awk '{ print $5, $6 }' | \
	egrep -v '127.0.0.1|FIN_WAIT|TIME_WAIT|CLOSE' > /dev/null && exit 1
    ;;

'cksum')
    chk_simple "$3,$SOCKET,$INSTANCE,$HWADDR" || exit 1
    ;;

'restart')
    test "$IPADDR" && /sbin/ifconfig $DEVICE down up
    ;;

'suspend'|'resume')
    ;;

*)
    usage
    ;;

esac

exit 0