fedb95ba79
Fix below linters issues
E001 Trailing Whitespace
E003 Indent not multiple of 4
E006 Line too long
E011 Then keyword is not on same line as if or elif keyword
E020 Function declaration not in format ^function name {$
E040 Syntax error: syntax error near unexpected token `;'
ignore cases are added in tox setup
E006 Line too long
E010: do not on the same line as for
Story: 2003368
Task: 24427
Change-Id: I6acf64271a4e608be8bc8fa965cac4fa31e0c05b
Signed-off-by: Sun Austin <austin.sun@intel.com>
209 lines
6.6 KiB
Bash
209 lines
6.6 KiB
Bash
#!/bin/bash
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#
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# Copyright (c) 2015-2018 Wind River Systems, Inc.
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#
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# SPDX-License-Identifier: Apache-2.0
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#
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# Return values;
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# 0 - All NTP servers are reachable and one is selected
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# 1 - No NTP servers are provisioned
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# 2 - None of the NTP servers are reachable
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# 3 - Some NTP servers reachable and one is selected
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# 4 - Some NTP servers reachable but none is selected
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#
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# This script execute ntpq -np to determined which provisioned servers
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# reachable. A server will be considered reachable only when the Tally Code
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# is a * or a +. Also the controller node will not be considered a reachable
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# server
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#
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# Here is an example of the ntpq command
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# remote refid st t when poll reach delay offset jitter
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# ==============================================================================
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# +192.168.204.104 206.108.0.133 2 u 203 1024 377 0.226 -3.443 1.137
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# +97.107.129.217 200.98.196.212 2 u 904 1024 377 21.677 5.577 0.624
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# 192.95.27.155 24.150.203.150 2 u 226 1024 377 15.867 0.381 1.124
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# -97.107.129.217 200.98.196.212 2 u 904 1024 377 21.677 5.577 0.624
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# *182.95.27.155 24.150.203.150 2 u 226 1024 377 15.867 0.381 1.124
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#
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# The temporary file /tmp/ntpq_server_info" will look something like this.
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# - The first line contains all the external NTP servers configured (it excludes the
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# peer controller).
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# - The second line lists all the unreachable external NTP servers. It also excludes
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# the peer controller.
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#
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# more /tmp/ntpq_server_info
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# 10.10.10.42;10.10.10.43;10.10.10.44;
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# 10.10.10.43;
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#
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# This temporary file is re-created everytime the this script is run. It is used by
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# caller of the script to get more detail regarding the NTP servers status.
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#
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# This script will only be run on the controller nodes.
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#
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# This script logs to user.log
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NTP_OK=0
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NTP_NOT_PROVISIONED=1
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NTP_NONE_REACHABLE=2
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NTP_SOME_REACHABLE=3
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NTP_SOME_REACHABLE_NONE_SELECTED=4
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# is it the ip address of a controller node
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isController ()
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{
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host=$1
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res=$(echo $(grep $host /etc/hosts) | grep controller)
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if [[ "$res" != "" ]] ; then
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logger -p info -t $0 "$host is a controller"
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return 1
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else
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return 0
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fi
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}
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# loop through all the ntpq servers listed as IPs and get the controller's
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getControllerIP ()
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{
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servers=$1
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# loop through all the ntpq servers
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while read line
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do
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server=$(echo $line | awk '{print $1;}')
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if [[ "$line" != " "* ]] ; then
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# if the first char is not a space then remove it e.g +159.203.31.244
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server=$(echo $server| cut -c 2-)
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fi
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res=$(echo $(grep $server /etc/hosts) | grep controller)
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if [[ "$res" != "" ]] ; then
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echo $server
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return
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fi
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done < <(echo "$servers")
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# should of found the controller exit script
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logger -p err -t $0 "Could not find the Controller's IP address"
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exit -1
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}
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# set up ouput file
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ntpq_server_info="/tmp/ntpq_server_info"
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rm -f $ntpq_server_info
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# find out if there is any servers provisioned
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server_count=$(cat /etc/ntp.conf | awk '{print $1;}' | grep -c '^server')
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bad_server_count=0
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# exit if there is no servers provisioned
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if [ $server_count -eq 0 ]; then
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logger -p info -t $0 "No NTP servers are provisioned (1)"
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exit $NTP_NOT_PROVISIONED
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fi
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# query the ntp servers with ntpq
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ntpres="$(ntpq -pn)"
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echo -e "\n Results from 'ntpq -pn' command \n $ntpres \n" | logger -p info -t $0
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# keep for debugging
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# the first argument is a filename and used instead of using ntpq
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#if [ "$1" ]; then
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# ntpres=$(cat $1)
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#fi
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# keep for debugging hard code the filname istead of passing it as an argument
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#ntpres=$(cat "/home/wrsroot/test")
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#server_count=3
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#
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# remove the header lines
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server_list=$( echo "$ntpres" | tail -n +3 )
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# loop through and find non reachable servers
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# a server is reachable with its prepended with a "*" or a "+"
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SAVEIFS=$IFS
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IFS=''
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# list all provisioned servers and save the external ones in temp file
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while read line
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do
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server=$(echo $line | awk '{print $1;}')
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if [[ "$line" != " "* ]] ; then
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# if the first char is not a space then remove it e.g +159.203.31.244
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server=$(echo $server| cut -c 2-)
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fi
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# add provisioned ntp server to temp file if not the controller
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isController $server
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if [[ "$?" == 0 ]]; then
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echo -n $server";" >> $ntpq_server_info
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fi
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done < <(echo "$server_list")
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echo >> $ntpq_server_info
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# remove the peer server (peer controller) from the server list
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controller_host_ip=$(getControllerIP $server_list)
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server_list=$(echo $server_list | grep -v $controller_host_ip)
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# list all non reachable ntp servers and save in temp file
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while read line
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do
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if [[ "$line" != "*"* ]] && [[ "$line" != "+"* ]] ;then
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server=$(echo $line | awk '{print $1;}')
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if [[ "$line" != " "* ]] ; then
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# if the first char is not a space then remove it e.g +159.203.31.244
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server=$(echo $server| cut -c 2-)
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fi
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# add the non reachable external ntp servers to temp file
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((bad_server_count++))
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echo -n $server";" >> $ntpq_server_info
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fi
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done < <(echo "$server_list")
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IFS=$SAVEIFS
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#
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logger -p info -t $0 Total number of provisioned servers $server_count
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logger -p info -t $0 Total number of unreachable servers $bad_server_count
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#
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# check if there is a "*" which represent a selected server
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# there should be only one but handling multiple
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selected=$(echo "$server_list" | grep -c '^*')
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if [ "$bad_server_count" -eq 0 ];then
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if [ $selected -eq 0 ]; then
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logger -p info -t $0 "All external NTP servers are reachable but none is selected (4)"
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exit $NTP_SOME_REACHABLE_NONE_SELECTED
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else
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logger -p info -t $0 "All external NTP servers are reachable and one is selected (0)"
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exit $NTP_OK
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fi
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fi
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# it does not matter if the peer controller is the server selected, if all the
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# external NTP servers are not reachable then we return NTP_NONE_REACHABLE
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if [ "$bad_server_count" -eq "$server_count" ];then
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logger -p info -t $0 "None of the external NTP servers are reachable (2)"
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exit $NTP_NONE_REACHABLE
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fi
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if [ "$bad_server_count" -lt "$server_count" ];then
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if [ $selected -eq 0 ]; then
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# this will happen if the peer controller is the selected server
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logger -p info -t $0 "Some external NTP servers are reachable but none is selected (4)"
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exit $NTP_SOME_REACHABLE_NONE_SELECTED
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else
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logger -p info -t $0 "Some external NTP servers are not reachable and one selected (3)"
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exit $NTP_SOME_REACHABLE
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fi
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fi
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logger -p err -t $0 "Should not exit here"
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exit -1
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