#!/bin/sh # Copyright (c) 2015-2017 Oracle and/or its affiliates. All Rights Reserved. # Copyright (c) International Business Machines Corp., 2005 # # This program is free software; you can redistribute it and/or # modify it under the terms of the GNU General Public License as # published by the Free Software Foundation; either version 2 of # the License, or (at your option) any later version. # # This program is distributed in the hope that it would be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program; if not, write the Free Software Foundation, # Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA # # Author: Mitsuru Chinen TCID=dns-stress01-rmt TST_TOTAL=1 . dns-stress-lib.sh # Check the arguments if [ $# -ne 7 ]; then tst_brkm TBROK "Usage: $0 ip_ver srv_ipaddr port domain \ min_id max_id connect_quantity" fi ip_ver="$1" srv_ipaddr="$2" port="$3" domain="$4" min_id="$5" max_id="$6" connect_quantity="$7" # Specify the record of dns accoring to the version of IP case $ip_ver in 4) record="A" ;; 6) record="AAAA" ;; *) tst_brkm TBROK "$ver_opt is unknown IP version" ;; esac # Check the connectivity first dig @$srv_ipaddr -p $port node${min_id}.${domain} $record > ans.log 2>&1 || \ tst_brkm TBROK "Failed to connect $srv_ipaddr" dns_check_answer ans.log # Loop for a large number of name lookup queries num=0 id=$min_id while [ $num -lt $connect_quantity ]; do dig @$srv_ipaddr -p $port node${id}.${domain} $record \ > /dev/null || break id=$(($id + 1)) [ $id -gt $max_id ] && id=$min_id num=$(($num + 1)) done # Check the connectivity again dig @$srv_ipaddr -p $port node${id}.${domain} $record > ans.log 2>&1 || \ tst_brkm TBROK "Failed to connect $srv_ipaddr" dns_check_answer ans.log dns_check_send_requests tst_exit