mirror of
https://github.com/apache/cloudstack.git
synced 2025-10-26 08:42:29 +01:00
e14f5d0aeb
(Sheng: Fix typo, fix log and error message, remove 'set -x' in script) Signed-off-by: Sheng Yang <sheng.yang@citrix.com>
132 lines
4.3 KiB
Bash
Executable File
132 lines
4.3 KiB
Bash
Executable File
#!/usr/bin/env bash
|
|
# Licensed to the Apache Software Foundation (ASF) under one
|
|
# or more contributor license agreements. See the NOTICE file
|
|
# distributed with this work for additional information
|
|
# regarding copyright ownership. The ASF licenses this file
|
|
# to you under the Apache License, Version 2.0 (the
|
|
# "License"); you may not use this file except in compliance
|
|
# with the License. You may obtain a copy of the License at
|
|
#
|
|
# http://www.apache.org/licenses/LICENSE-2.0
|
|
#
|
|
# Unless required by applicable law or agreed to in writing,
|
|
# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
|
|
# KIND, either express or implied. See the License for the
|
|
# specific language governing permissions and limitations
|
|
# under the License.
|
|
|
|
usage() {
|
|
printf "Usage: %s: <routerAliasIp:gateway:netmask:start_ip_of_subnet:-routerAlisIp:gateway:....>\n" $(basename $0) >&2
|
|
}
|
|
|
|
source /root/func.sh
|
|
|
|
lock="biglock"
|
|
locked=$(getLockFile $lock)
|
|
if [ "$locked" != "1" ]
|
|
then
|
|
exit 1
|
|
fi
|
|
|
|
#set -x
|
|
#backup the old config file
|
|
DHCP_CONFIG=/etc/dnsmasq.d/multiple_ranges.conf
|
|
DHCP_CONFIG_BAK=/etc/dnsmasq.d/multiple_ranges.conf.bak
|
|
DHCP_CONFIG_MAIN=/etc/dnsmasq.conf
|
|
DHCP_CONFIG_MAIN_BAK=/etc/dnsmasq.conf.bak
|
|
DHCP_FAILURE_CONFIG=/etc/multiple_ranges.conf.failure
|
|
DHCP_FAILURE_CONFIG_MAIN=/etc/dnsmasq.conf.failure
|
|
CMDLINE=$(cat /var/cache/cloud/cmdline | tr '\n' ' ')
|
|
|
|
#take a backup copy of the dnsmasq file.
|
|
cp "$DHCP_CONFIG_MAIN" "$DHCP_CONFIG_MAIN_BAK"
|
|
cp "$DHCP_CONFIG" "$DHCP_CONFIG_BAK"
|
|
|
|
#empty the config file
|
|
echo > $DHCP_CONFIG
|
|
|
|
var="$1"
|
|
dhcp_range=""
|
|
dhcp_gateway=""
|
|
dhcp_netmask=""
|
|
dns_option=""
|
|
dns_servers=""
|
|
count=0
|
|
|
|
|
|
# fetching the dns Ips from the command line.
|
|
dns1=$(echo "$CMDLINE" | grep -o " dns1=.* " | sed -e 's/dns1=//' | awk '{print $1}')
|
|
dns2=$(echo "$CMDLINE" | grep -o " dns2=.* " | sed -e 's/dns2=//' | awk '{print $1}')
|
|
|
|
dns_servers="${dns1}"
|
|
if [ -n "$dns2" ]
|
|
then
|
|
dns_servers="${dns1},${dns2}"
|
|
fi
|
|
|
|
|
|
# check if useextdns is true
|
|
use_ext_dns=$(echo "$CMDLINE" | grep -o "useextdns=true")
|
|
while [ -n "$var" ]
|
|
do
|
|
var1=$(echo $var | cut -f1 -d "-")
|
|
routerip=$( echo $var1 | cut -f1 -d ":" )
|
|
gateway=$(echo $var1 | cut -f2 -d ":")
|
|
netmask=$(echo $var1 | cut -f3 -d ":")
|
|
start_ip_of_subnet=$(echo $var1 | cut -f4 -d ":")
|
|
dhcp_range="${dhcp_range}"'dhcp-range=set:range'$count","$start_ip_of_subnet",static \n"
|
|
dhcp_gateway="${dhcp_gateway}"'dhcp-option=tag:range'$count",3,"$gateway" \n"
|
|
dhcp_netmask="${dhcp_netmask}"'dhcp-option=tag:range'$count",1,"$netmask" \n"
|
|
if [ -n "$use_ext_dns" ]
|
|
then
|
|
dns_option="${dns_option}"'dhcp-option=tag:range'$count",6,"$dns_servers" \n"
|
|
else
|
|
dns_option="${dns_option}"'dhcp-option=tag:range'$count",6,$routerip"","$dns_servers" \n"
|
|
fi
|
|
var=$( echo $var | sed "s/${var1}-//" )
|
|
count=$[$count+1]
|
|
done
|
|
|
|
#logging the configuration being removed.
|
|
log=""
|
|
log="${log}"`grep "^dhcp-option=6.*" "$DHCP_CONFIG_MAIN"`"\n"
|
|
log="${log}"`grep "^dhcp-option=option:router.*" "$DHCP_CONFIG_MAIN"`"\n"
|
|
log="${log}"`grep "^dhcp-range=.*" "$DHCP_CONFIG_MAIN"`"\n"
|
|
echo -e "$log" > log.dnsmasq.txt
|
|
|
|
if [ "$log" != '\n\n\n' ]
|
|
then
|
|
#Cleaning the existing dhcp confgiuration
|
|
logger -t cloud "dnsmasq.sh: remvoing the primaryip confg from dnsmasq.conf and adding it to /etc/dnsmaq.d/multiple_ranges.conf"
|
|
logger -t cloud "dnsmasq.sh: config removed from dnsmasq.conf is $log"
|
|
sed -i -e '/dhcp-option=6.*/d' "$DHCP_CONFIG_MAIN"
|
|
sed -i -e '/dhcp-option=option:router.*/d' "$DHCP_CONFIG_MAIN"
|
|
sed -i -e '/dhcp-range=.*/d' "$DHCP_CONFIG_MAIN"
|
|
fi
|
|
|
|
#wrting the new config into the config file.
|
|
echo -e "$dhcp_range" >> "$DHCP_CONFIG"
|
|
echo -e "$dhcp_gateway" >> "$DHCP_CONFIG"
|
|
echo -e "$dhcp_netmask" >> "$DHCP_CONFIG"
|
|
echo -e "$dns_option" >> "$DHCP_CONFIG"
|
|
|
|
|
|
#restart the dnsmasq
|
|
service dnsmasq restart
|
|
result=$?
|
|
if [ "$result" -ne "0" ]
|
|
then
|
|
logger -t cloud "dnsmasq.sh: could not configure dnsmasq"
|
|
logger -t cloud "dnsmasq.sh: reverting to the old config"
|
|
logger -t cloud "dnsmasq.sh: copying the failure config to `$DHCP_FAILURE_CONFIG` and `$DHCP_FAILURE_CONFIG_MAIN`"
|
|
cp "$DHCP_CONFIG" "$DHCP_FAILURE_CONFIG"
|
|
cp "$DHCP_CONFIG_MAIN" "$DHCP_FAILURE_CONFIG_MAIN"
|
|
cp "$DHCP_CONFIG_BAK" "$DHCP_CONFIG"
|
|
cp "$DHCP_CONFIG_MAIN_BAK" "$DHCP_CONFIG_MAIN"
|
|
service dnsmasq restart
|
|
unlock_exit $result $lock $locked
|
|
fi
|
|
rm "$DHCP_CONFIG_BAK"
|
|
rm "$DHCP_CONFIG_MAIN_BAK"
|
|
unlock_exit $result $lock $locked
|