source: MondoRescue/branches/3.0/mindi/rootfs/sbin/start-netfs@ 3168

#!/bin/sh
#
# $Id$
#
# This script sets up the network + Network FS environment if needed.
#


# number of ping
ipcount=3

# Get info from config file
ipdev=`grep netfs-dev /tmp/mondo-restore.cfg 2> /dev/null | cut -d' ' -f2-`
hwaddr=`grep netfs-client-hwaddr /tmp/mondo-restore.cfg 2> /dev/null | cut -d' ' -f2-`
ipaddress=`grep netfs-client-ipaddr /tmp/mondo-restore.cfg 2> /dev/null | cut -d' ' -f2-`
ipnetmask=`grep netfs-client-netmask /tmp/mondo-restore.cfg 2> /dev/null | cut -d' ' -f2-`
ipbroadcast=`grep netfs-client-broadcast /tmp/mondo-restore.cfg 2> /dev/null | cut -d' ' -f2-`
ipgateway=`grep netfs-client-defgw /tmp/mondo-restore.cfg 2> /dev/null | cut -d' ' -f2-`
proto=`grep netfs-proto /tmp/mondo-restore.cfg 2> /dev/null | cut -d' ' -f2-`
iptoute=`grep netfs-route /tmp/mondo-restore.cfg 2> /dev/null | cut -d' ' -f2-`
ipconf=""
pre=""
post=""
export netfsmount=`grep netfs-server-mount /tmp/mondo-restore.cfg 2> /dev/null | cut -d' ' -f2-`
export imgname=`grep iso-prefix /tmp/mondo-restore.cfg 2> /dev/null | cut -d' ' -f2-`
if [ "$imgname" = "" ]; then
    export imgname="mondorescue"
fi
export dirimg=`grep netfs-server-path /tmp/mondo-restore.cfg 2> /dev/null | cut -d' ' -f2-`
if [ "$dirimg" = "" ]; then
    export dirimg="/"
fi

# info from cmdline are predominent
for i in `cat /proc/cmdline` ; do
    echo $i | grep -qi ping= && ipcount=`echo $i | cut -d= -f2`
    echo $i | grep -qi hwaddr= && hwaddr=`echo $i | cut -d= -f2`
    echo $i | grep -qi ipconf= && ipconf=`echo $i | cut -d= -f2`
    echo $i | grep -qi netfsmount= && export netfsmount=`echo $i | cut -d= -f2`
    echo $i | grep -qi netfsopt= && export netfsopt=`echo $i | cut -d= -f2`
    echo $i | grep -qi prefix= && export imgname=`echo $i | cut -d= -f2`
    echo $i | grep -qi netfspath= && export dirimg=`echo $i | cut -d= -f2`
    echo $i | grep -qi pre= && pre=`echo $i | cut -d= -f2`
    echo $i | grep -qi post= && post=`echo $i | cut -d= -f2`
    echo $i | grep -qi proto= && proto=`echo $i | cut -d= -f2`
    echo $i | grep -qi iproute= && iproute=`echo $i | cut -d= -f2`
done

if [ "$ipdev" != "" ] || [ "$ipconf" != "" ]; then
    # Network configuration stored during archive
    # or on cmdline so network wanted => starting it
    LogIt "Starting Network..."

    # Activate loobback
    ifconfig lo 127.0.0.1

    echo "$ipconf" | grep -q "dhcp"
    if [ $? -eq 0 ]; then
        ipdev=`echo $ipconf | cut -d: -f1`
        LogIt "Making DHCP request on $ipdev"
        udhcpc -i $ipdev
    else
        if [ "$ipconf" != "" ]; then
            ipdev=`echo $ipconf | cut -d: -f1`
            ipaddress=`echo $ipconf | cut -d: -f2`
            ipnetmask=`echo $ipconf | cut -d: -f3`
            ipbroadcast=`echo $ipconf | cut -d: -f4`
            ipgateway=`echo $ipconf | cut -d: -f5`
        fi

        # If same system, map to the right MAC address
        hwaddr_found=`ifconfig $ipdev | /bin/grep HWaddr | awk '{print $NF}'`
        if [ "$hwaddr" != "$hwaddr_found" ]; then
            ipdev_new=`ifconfig -a | /bin/grep $hwaddr | awk '{print $1}'`
            if [ "$ipdev_new" != "" ]; then
                LogIt "Interface $ipdev changed to $ipdev_new (MAC: $hwaddr)"
                ipdev=$ipdev_new
            else
                LogIt "NOTE: Interface $ipdev kept despite it doesn't match the $hwaddr MAC address"
            fi
        fi

        LogIt "Configuring $ipdev statically ($ipaddress/$ipnetmask)"
        ifconfig $ipdev $ipaddress netmask $ipnetmask broadcast $ipbroadcast
        route add default gw $ipgateway

    fi

    # Leave time to the stack to wake up (reported by some users)
    sleep 5

    # Handle a potential static route
    if [ _"$iproute" != _"" ]; then
        iproute=`echo $iproute | perl -pi -e 's|:| |g'`
        LogIt "Adding static route with route add $iproute"
        route add $iproute
    fi

    # ping server helps waking interface up
    LogIt "Pinging Remote server..."
    netfs_server_ipaddr=`echo $netfsmount | cut -d: -f1 | cut -d@ -f2`
    ping -c $ipcount $netfs_server_ipaddr 

    # Which is our protocol for file sharing
    if [ "$proto" = "" ]; then
        LogIt "No protocol specified, defaulting to NFS"
        proto="nfs"
    fi

    if [ "$proto" = "sshfs" ]; then
        LogIt "Mounting SSHFS share ($netfsmount) on /tmp/isodir..."
        # We need a correct console for ssh
        ln -sf /dev/console /dev/tty
        sshfs -o ro,StrictHostKeyChecking=no $netfsopt $netfsmount /tmp/isodir
    elif [ "$proto" = "smbfs" ]; then
        LogIt "Mounting SMBFS share ($netfsmount) on /tmp/isodir..."
        mount -t cifs $netfsopt $netfsmount /tmp/isodir -o ro 
    elif [ "$proto" != "" ]; then
        if [ -x /sbin/rpcbind ]; then
            "Startng rpcbind daemon..."
            /sbin/rpcbind &
        fi
        LogIt "Mounting Network share ($netfsmount) on /tmp/isodir..."
        touch /etc/mtab
        mount -t $proto -o nolock,ro $netfsopt $netfsmount /tmp/isodir
    else
        LogIt "Unknown protocol $proto"
    fi
    
    LogIt "Mounting Remote image ${imgname}-1.iso in $dirimg on /mnt/cdrom in loopback"
    mount -o ro,loop -t iso9660 /tmp/isodir/$dirimg/${imgname}-1.iso /mnt/cdrom

    # Save the scripts on the Network share locally
    if [ "`echo $pre | grep -E '^/tmp/isodir'`" ]; then
        cp $pre /tmp
        LogIt "Copying $pre under /tmp"
    fi
    if [ "`echo $post | grep -E '^/tmp/isodir'`" ]; then
        cp $post /tmp
        LogIt "Copying $post under /tmp"
    fi
fi