68 lines
1.9 KiB
Plaintext
68 lines
1.9 KiB
Plaintext
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#!/bin/bash
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str_dir_name=`dirname $0`
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. $str_dir_name/xcatlib.sh
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if [ -z "$1" ];then
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echo "$0 need the interface name."
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exit
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fi
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str_nic_name=$1
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str_ip_mask=`ip addr show dev $str_nic_name | grep inet | grep -v inet6 | awk '{print $2}' | head -n 1`
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str_ip=`echo $str_ip_mask | awk -F'/' '{print $1}'`
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str_mask=`echo $str_ip_mask | awk -F'/' '{print $2}'`
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str_net=$(v4calcnet $str_ip $str_mask)
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num_i=1
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while [ $num_i -le $NETWORKS_LINES ];do
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eval str_temp=\$NETWORKS_LINE$num_i
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str_net_table=`echo $str_temp | awk -F'net=' '{print $2}' | awk -F'|' '{print $1}'`
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if [ "$str_net" = "$str_net_table" ];then
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str_gateway=`echo $str_temp | awk -F'gateway=' '{print $2}' | awk -F'|' '{print $1}' | sed 's:^/::'`
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fi
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num_i=$((num_i+1))
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done
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if [ -z "$str_gateway" ];then
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echo "Can not find the corresponding network defination"
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exit
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fi
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echo $str_gateway | grep -E '^[0-9]+\.[0-9]+\.[0-9]+\.[0-9]+$' > /dev/null
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if [ $? -ne 0 ];then
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echo "The gateway must be ipv4 address: $str_gateway"
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exit
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fi
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#change the default route
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route del default
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route add default gw $str_gateway dev $str_nic_name
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#change the gateway persistent
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if [ -f "/etc/debian_version" ];then
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debianpreconf
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#delete the gateway from all configuration files
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sed -i "s/.*gateway.*//" /etc/network/interfaces.d/*
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str_conf_file="/etc/network/interfaces.d/$str_nic_name"
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echo " gateway $str_gateway --" >> $str_conf_file
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elif [ -f "/etc/SuSE-release" ];then
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grep -i "default" /etc/sysconfig/network/routes
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if [ $? -eq 0 ];then
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sed -i "s/.*default.*/default ${str_gateway} - -/i" /etc/sysconfig/network/routes
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else
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echo "default ${str_gateway} - -" >> /etc/sysconfig/network/routes
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fi
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else
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grep -i "GATEWAY" /etc/sysconfig/network
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if [ $? -eq 0 ];then
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sed -i "s/.*GATEWAY.*/GATEWAY=${str_gateway}/i" /etc/sysconfig/network
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else
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echo "GATEWAY=${str_gateway}" >> /etc/sysconfig/network
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fi
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fi
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