bbfdm/scripts/nslookup_launch

102 lines
3.7 KiB
Bash
Executable file

#!/bin/sh
# Copyright (C) 2019 iopsys Software Solutions AB
# Author: AMIN Ben Ramdhane <amin.benramdhane@pivasoftware.com>
source /usr/share/bbfdm/bbf_uci_api
LOG_FILE="/tmp/nslookup.log"
nslookup_launch() {
local i j time1 time2 timeresponse status AnswerType HostNameReturned address dns_server_ip ResponseTime success_count
local address=""
local hostname=`uci_get_bbf_dmmap dmmap_diagnostics.nslookup.HostName`
local dnsserver=`uci_get_bbf_dmmap dmmap_diagnostics.nslookup.DNSServer`
local cnt=`uci_get_bbf_dmmap dmmap_diagnostics.nslookup.NumberOfRepetitions 1`
[ "$hostname" = "" ] && return
i=0
j=0
success_count=0
[ -e "${LOG_FILE}" ] && rm ${LOG_FILE}
delete_all_results
while [ $i -lt $cnt ]; do
let i++
time1=`date +%s`
if [ -z "$dnsserver" ]; then
nslookup $hostname >>${LOG_FILE} 2>&1
else
nslookup $hostname $dnsserver >>${LOG_FILE} 2>&1
fi
time2=`date +%s`
timeresponse=$(($(($time2-$time1))*1000))
echo "ResponseTime: $timeresponse" >>${LOG_FILE}
echo "++++++++++++++++++++++++++++++" >>${LOG_FILE}
done
while IFS= read line; do
[ -z "$line" ] && continue;
local server=`echo "$line" | tr -d '\t' | tr -d ' ' | grep "Server:" | awk -F':' '{print $2}'`
if [[ -n "$server" && "$server" == "0.0.0.0" ]]; then
status="Error_DNSServerNotAvailable"
continue
elif [ -n "$server" ]; then
dns_server_ip=$server
continue
fi
var=`echo "$line" | tr -d '\t' | tr -d ' ' | grep "Name:" | awk -F':' '{print $2}'`
[ -n "$var" ] && { HostNameReturned=$var; status="Success"; AnswerType="Authoritative"; let success_count++; continue; }
var=`echo "$line" | grep "Address " | awk -F':' '{print substr($0, index($0,$2))}' | tr -d '\t' | tr -d ' '`
[ -n "$var" ] && { [ -z "$address" ] && address="$var" || address="$address,$var"; continue; }
var=`echo "$line" | tr -d '\t' | tr -d ' ' | grep "ResponseTime:" | awk -F':' '{print $2}'`
[ -n "$var" ] && { ResponseTime=$var; continue; }
echo $line | grep 'Can' >/dev/null 2>&1 && { continue; }
echo $line | grep 'connection timed out' >/dev/null 2>&1 && { AnswerType="None"; status="Error_Timeout"; continue; }
echo $line | grep 'Non-authoritative' >/dev/null 2>&1 && { AnswerType="NonAuthoritative"; continue; }
if echo $line | grep '++++++++++++++++++++++' >/dev/null 2>&1; then
$UCI_ADD_BBF_DMMAP dmmap_diagnostics NSLookupResult
$UCI_SET_BBF_DMMAP dmmap_diagnostics.@NSLookupResult[$j].Status=$status
$UCI_SET_BBF_DMMAP dmmap_diagnostics.@NSLookupResult[$j].AnswerType=$AnswerType
$UCI_SET_BBF_DMMAP dmmap_diagnostics.@NSLookupResult[$j].HostNameReturned=$HostNameReturned
$UCI_SET_BBF_DMMAP dmmap_diagnostics.@NSLookupResult[$j].IPAddresses=$address
$UCI_SET_BBF_DMMAP dmmap_diagnostics.@NSLookupResult[$j].DNSServerIP=$dns_server_ip
$UCI_SET_BBF_DMMAP dmmap_diagnostics.@NSLookupResult[$j].ResponseTime=$ResponseTime
let j++
address=""
fi
done <${LOG_FILE}
rm -f ${LOG_FILE}
$UCI_SET_BBF_DMMAP dmmap_diagnostics.nslookup.SuccessCount=$success_count
$UCI_SET_BBF_DMMAP dmmap_diagnostics.nslookup.DiagnosticState=Complete
$UCI_COMMIT_BBF_DMMAP
}
delete_all_results() {
local j
for j in $($UCI_SHOW_BBF_DMMAP dmmap_diagnostics | grep "dmmap_diagnostics.@NSLookupResult.*=NSLookupResult"); do
$UCI_DELETE_BBF_DMMAP dmmap_diagnostics.@NSLookupResult[-1]
done
$UCI_COMMIT_BBF_DMMAP
}
nslookup_stop_diagnostic() {
delete_all_results
local pids=`ps | grep nslookup_launch | grep -v grep | awk '{print $1}'`
if [ -n "$pids" ]; then
kill -9 $pids &>/dev/null
$UCI_SET_BBF_DMMAP dmmap_diagnostics.nslookup.DiagnosticState=None
$UCI_COMMIT_BBF_DMMAP
fi
}
if [ "$1" == "run" ]; then
nslookup_launch
elif [ "$1" == "stop" ]; then
nslookup_stop_diagnostic
else
return
fi