150 lines
4.5 KiB
Bash
Executable File
150 lines
4.5 KiB
Bash
Executable File
#!/bin/sh
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# pmatch determines if 1st argument string is matched by 2nd argument pattern
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pmatch ()
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{
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case $1 in
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$2) return 0;; # zero return code means string matched by pattern
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esac
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return 1 # non-zero return code means string not matched by pattern
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}
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# converts netmask CIDR fromat to x.x.x.x mask value
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maskfromprefix ()
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{
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prefixlen=$1
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maskval=$((0xffffffff>>(32-prefixlen)<<(32-prefixlen)))
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mask1=$((maskval >> 24))
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mask2=$((maskval >> 16 & 0xff))
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mask3=$((maskval >> 8 & 0xff))
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mask4=$((maskval & 0xff))
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echo $mask1.$mask2.$mask3.$mask4
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NETMASK=$mask1.$mask2.$mask3.$mask4
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}
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network_ipv4calc ()
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{
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# Returns the network value needed for Ubuntu /etc/network/interface file
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# $1 must be the IP Address
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# $2 must be the Netmask value
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IP_1=`echo $1 | cut -d . -f 1`
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IP_2=`echo $1 | cut -d . -f 2`
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IP_3=`echo $1 | cut -d . -f 3`
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IP_4=`echo $1 | cut -d . -f 4`
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NETM_1=`echo $2 | cut -d . -f 1`
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NETM_2=`echo $2 | cut -d . -f 2`
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NETM_3=`echo $2 | cut -d . -f 3`
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NETM_4=`echo $2 | cut -d . -f 4`
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NET_1=$(($IP_1 & $NETM_1))
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NET_2=$(($IP_2 & $NETM_2))
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NET_3=$(($IP_3 & $NETM_3))
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NET_4=$(($IP_4 & $NETM_4))
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NETWORK="$NET_1.$NET_2.$NET_3.$NET_4"
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echo $NETWORK
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}
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defgw=`ip route | grep default | awk '{print $3}'`
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if ( pmatch $OSVER "ubuntu*" )
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then
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echo `hostname` >/etc/hostname
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mv /etc/network/interfaces /etc/network/interfaces.old # this file will be filled up next
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elif [ -f /etc/SuSE-release ]
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then
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#SLES9 and SLES10, uses /etc/sysconfig/network/ifcfg-eth-id-<mac>
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#SLES11, uses /etc/sysconfig/network/ifcfg-eth<x>
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NICFILEPRE="/etc/sysconfig/network/ifcfg-"
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echo `hostname` > /etc/HOSTNAME
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if [ ! -z "$defgw" ]; then
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echo "default $defgw - -" > /etc/sysconfig/routes
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fi
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else
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#RedHat uses /etc/sysconfig/network-scripts/ifcfg-eth<x>
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NICFILEPRE="/etc/sysconfig/network-scripts/ifcfg-"
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if [ -f "/etc/hostname" ]; then # for rh7
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echo `hostname` >/etc/hostname
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else
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sed -i "s/HOSTNAME.*/HOSTNAME=`hostname`/" /etc/sysconfig/network
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fi
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if [ ! -z "$defgw" ]; then
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echo "GATEWAY=$defgw" >> /etc/sysconfig/network
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fi
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fi
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for nic in `ip link |grep "BROADCAST" |awk '{print $2}' | sed s/://`; do
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IPADDRMASK=`ip addr show dev $nic | grep inet | grep -v inet6 | awk '{print $2}' | head -n 1`
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IPADDR=`echo $IPADDRMASK | awk -F'/' '{print $1}'`
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PREFIXMASK=`echo $IPADDRMASK | awk -F'/' '{print $2}'`
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# converts to x.x.x.x mask value
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maskfromprefix $PREFIXMASK
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if ( pmatch $OSVER "ubuntu*" )
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then
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NETWORK=`network_ipv4calc $IPADDR $NETMASK`
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#BROADCAST=`ifconfig $nic | grep Bcast | awk '{print $3}' | awk -F: '{print $2}'`
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BROADCAST=`ip -4 -oneline addr show $nic|grep brd| awk -F ' ' '{print $6}'`
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if [ ! -z "$defgw" ]; then
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gateway_line="gateway $defgw"
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else
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gateway_line=""
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fi
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# add info to interfaces file on ubuntu, TBD does unbuntu change to systemd, this will not exist
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cat >>/etc/network/interfaces <<EOF
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auto $nic
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iface $nic inet static
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address $IPADDR
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network $NETWORK
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netmask $NETMASK
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broadcast $BROADCAST
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$gateway_line
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EOF
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# not ubuntu
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else
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if [ -f ${NICFILEPRE}${nic} ]
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then
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NICFILE=${NICFILEPRE}${nic}
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else
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#mac=`ifconfig $nic|grep HWaddr|awk '{print $5}'|tr "[A-Z]" "[a-z]"`
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mac=`ip link show $nic | grep ether | awk '{print $2}'`
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NICFILE=${NICFILEPRE}eth-id-${mac}
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fi
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sed -i s/BOOTPROTO=dhcp/BOOTPROTO=static/ $NICFILE
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sed -i s/BOOTPROTO=\'dhcp\'/BOOTPROTO=static/ $NICFILE
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sed -i s/BOOTPROTO=\"dhcp\"/BOOTPROTO=static/ $NICFILE
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grep ^IPADDR= $NICFILE >/dev/null
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if [ $? -eq 0 ]
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then
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sed -i '/IPADDR=/d' $NICFILE
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fi
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echo IPADDR=$IPADDR >> $NICFILE
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grep ^NETMASK= $NICFILE >/dev/null
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if [ $? -eq 0 ]
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then
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sed -i '/NETMASK=/d' $NICFILE
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fi
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echo NETMASK=$NETMASK >> $NICFILE
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fi
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#for netboot/statelite case, restart the network interface. For diskful installation, it is not necessary because the restart of the network will happen at the first boot.
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if [ "$NODESETSTATE" = "netboot" ] || [ "$NODESETSTATE" = "statelite" ]
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then
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ifdown $nic
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ifup $nic
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fi
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done
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if ( pmatch $OSVER "ubuntu*")
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then
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cat >>/etc/network/interfaces <<EOF
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auto lo
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iface lo inet loopback
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EOF
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fi
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exit 0
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