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# load network modules, if NFSROOT is set
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# load network modules, if NFSROOT is set
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# Urs Beyerle, PSI
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# Urs Beyerle, PSI
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#
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#
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load_network_modules()
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{
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    # mii maybe need by NIC
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    echolog "load module mii"
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    modprobe_module mii
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    FOUND_NIC=""
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    # 1. load network driver defined by kernel parameter nic
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# 1. load network driver defined by kernel parameter nic
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#
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    NIC="`cmdline_value nic`"
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load_network_module_nic()
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{
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    if [ -n "$NIC" ]; then
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    if [ -n "$NIC" ] && [ "$NIC" != "auto" ]; then
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	echolog "load module $NIC"
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	echolog "load module $NIC"
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	modprobe_module nic
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	modprobe_module $NIC
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        # FOUND_NIC="yes" # we are not yet sure ;-)
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    fi
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    fi
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}
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    # 2. detecting network card from pcitable list
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# 2. detecting network card from pcitable list
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#
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load_network_module_pcitable()
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{
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    PCITABLE=/bin/pcitable
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    PCITABLE=/bin/pcitable
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    NICS=`lspci -n | awk '/Class 0200/ {print $4}' | tr ':' ' ' \
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    NICS=`lspci -n | awk '/Class 0200/ {print $4}' | tr ':' ' ' \
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	| while read x y ; do grep "0x$x.*0x$y" $PCITABLE \
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	| while read x y ; do grep "0x$x.*0x$y" $PCITABLE \
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	| awk '$3 !~ /"unknown"/ {print $3}' | tr -d '"' ; done`
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	| awk '$3 !~ /"unknown"/ {print $3}' | tr -d '"' ; done`
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    if [ -n "$NICS" ]; then
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    if [ -n "$NICS" ]; then
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	echolog "found network card(s): $NICS"
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	echolog "found network card(s): $NICS"
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	for nic in $NICS; do
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	for driver in $NICS; do
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	    echolog "load module $nic"
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	    echolog "load module $driver"
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	    modprobe_module $nic
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	    modprobe_module $driver
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	    FOUND_NIC="yes"
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	    FOUND_NIC="$driver"
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	done
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	done
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    fi
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    fi
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}
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    # 3. probe for more network card drivers, if no ethX devices found
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found_nic()
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{
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    for iface in eth0 eth1 eth2 eth3; do
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    for iface in eth0 eth1 eth2 eth3; do
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	ifconfig $iface > /dev/null 2>&1
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	ifconfig $iface > /dev/null 2>&1
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	if [ $? -eq 0 ]; then  FOUND_NIC="yes"; break; fi
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	if [ $? -eq 0 ]; then  FOUND_NIC="yes"; break; fi
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    done
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    done
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}
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# 3. probe for more network card drivers, if no ethX devices found
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#
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    if [ -z $FOUND_NIC ]; then
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load_network_module_auto()
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{
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    echolog "auto-detection of network driver ..."
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	KERNEL="`uname -r`"
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    KERNEL="`uname -r`"
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	NETDRIVERS="`cat /lib/modules/$KERNEL/netdrivers`"
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    NETDRIVERS="`find /lib/modules/$KERNEL/kernel/drivers/net | grep -v mii | grep .ko | cut -d"/" -f8 | cut -d"." -f1 | uniq`"
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	for driver in $NETDRIVERS; do
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    for driver in $NETDRIVERS; do
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	    modprobe_module $driver
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	modprobe_module $driver > /dev/null 2>&1
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	for iface in eth0 eth1 eth2 eth3; do
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	    ifconfig $iface > /dev/null 2>&1
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	    ifconfig $iface > /dev/null 2>&1
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	    if [ $? -eq 0 ]; then
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	    if [ $? -eq 0 ]; then
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		echolog "load $driver"
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		echolog "load $driver"
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		# tr brocken in busybox
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		FOUND_NIC="yes"
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		# FOUND_NIC="`echo $driver | tr '-' '_'`"
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		FOUND_NIC="`echo $driver | cut -d"-" -f1`"
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		break
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		break 2
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	    fi
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	    fi
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	    rmmod $driver
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	done
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	done
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	rmmod $driver > /dev/null 2>&1
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    fi
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    done
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    # clean up: remove unused modules until driver "mii"
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    LOADED_DRIVERS="`lsmod | grep -v Module | grep -v $FOUND_NIC | cut -d" " -f1`"
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    for driver in $LOADED_DRIVERS; do
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	[ "$driver" = "mii" ]  && break
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	[ "$driver" = "ntfs" ] && break
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	[ "$driver" = "vfat" ] && break
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	rmmod $driver > /dev/null 2>&1
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    done
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}
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    # 4. ask the user for a network driver
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# 4. ask the user for a network driver
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#
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    if [ -z $FOUND_NIC ]; then
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load_network_module_ask()
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{
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	echo "ERROR: No network card detected!"
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    echo "ERROR: No network card detected!"
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	echo "Type in your network card driver (e.g. tg3, e1000). "
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    echo "Type in your network card driver (e.g. tg3, e1000). "
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	echo "Or ask your system administrator for help."
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    echo "Or ask your system administrator for help."
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	echo -n "Network card driver: "
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    echo -n "Network card driver: "
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	read nic
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    read driver
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	echo "Load module $nic"
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    echo "Load module $driver"
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    modprobe_module $driver
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}
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# Try to find a network driver
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#
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load_network_modules()
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{
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    # mii maybe need by NIC
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    echolog "load module mii"
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	modprobe_module $nic
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    modprobe_module mii
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    FOUND_NIC=""
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    NIC="`cmdline_value nic`"
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    load_network_module_nic
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    [ "$NIC" != "auto" ] && load_network_module_pcitable
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    fi
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    found_nic
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    [ -z $FOUND_NIC ] && load_network_module_auto
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    [ -z $FOUND_NIC ] && load_network_module_ask
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    # remove mii, if not needed
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    rmmod mii > /dev/null 2>&1
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}
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}
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# get DHCP lease
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# get DHCP lease
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# Urs Beyerle, PSI
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# Urs Beyerle, PSI
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#
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#