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111 lines
1.8 KiB
Bash
Executable File
111 lines
1.8 KiB
Bash
Executable File
#!/bin/bash
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# Gets IP address from a given MAC
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mac2ip() {
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mac=$1
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let ip_a=0x`echo $mac | cut -d: -f 3`
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let ip_b=0x`echo $mac | cut -d: -f 4`
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let ip_c=0x`echo $mac | cut -d: -f 5`
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let ip_d=0x`echo $mac | cut -d: -f 6`
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ip="$ip_a.$ip_b.$ip_c.$ip_d"
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echo $ip
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}
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# Gets the network part of an IP
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get_network() {
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IP=$1
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echo $IP | cut -d'.' -f1,2,3
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}
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get_interfaces() {
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IFCMD="/sbin/ifconfig -a"
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$IFCMD | grep ^eth | sed 's/ *Link encap:Ethernet.*HWaddr /-/g'
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}
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get_dev() {
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echo $1 | cut -d'-' -f 1
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}
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get_mac() {
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echo $1 | cut -d'-' -f 2
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}
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gen_hosts() {
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NETWORK=$1
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echo "127.0.0.1 localhost"
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for n in `seq -w 01 99`; do
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n2=`echo $n | sed 's/^0*//'`
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echo ${NETWORK}.$n2 cluster${n}
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done
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}
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gen_exports() {
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NETWORK=$1
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echo "/images ${NETWORK}.0/255.255.255.0(rw,async,no_subtree_check)"
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}
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gen_hostname() {
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MAC=$1
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NUM=`mac2ip $MAC | cut -d'.' -f4`
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NUM2=`echo 000000$NUM | sed 's/.*\(..\)/\1/'`
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echo cluster$NUM2
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}
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gen_interface() {
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DEV_MAC=$1
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DEV=`get_dev $DEV_MAC`
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MAC=`get_mac $DEV_MAC`
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IP=`mac2ip $MAC`
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NETWORK=`get_network $IP`
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cat <<EOT
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auto $DEV
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iface $DEV inet static
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address $IP
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network $NETWORK.0
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netmask 255.255.255.0
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EOT
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if [ $DEV == "eth0" ]; then
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echo " gateway $NETWORK.1"
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fi
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echo ""
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}
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IFACES=`get_interfaces`
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for i in $IFACES; do
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MASTER_DEV_MAC=$i
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DEV=`get_dev $i`
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MAC=`get_mac $i`
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IP=`mac2ip $MAC`
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NETWORK=`get_network $IP`
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done
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# gen_hosts $NETWORK > /etc/hosts
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# gen_exports $NETWORK > /etc/exports
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# gen_hostname $MAC > /etc/hostname
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(
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cat <<EOT
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auto lo
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iface lo inet loopback
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EOT
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for i in $IFACES; do
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gen_interface $i
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done
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) > /etc/network/interfaces
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# /bin/hostname `cat /etc/hostname`
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