#!/bin/sh ################################################################################ ## ## ## Copyright (c) International Business Machines Corp., 2006 ## ## ## ## 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 will 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 to the Free Software ## ## Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA ## ## ## ## ## ################################################################################ # # File: # route4-change-if # # Description: # Verify the kernel is not crashed when the interface of an IPv4 route is # changed frequently # test01 - by route command # test02 - by ip command # # Setup: # See ltp-yyyymmdd/testcases/network/stress/README # # Author: # Mitsuru Chinen # # History: # Mar 17 2006 - Created (Mitsuru Chinen) # #----------------------------------------------------------------------- # Uncomment line below for debug output. #trace_logic=${trace_logic:-"set -x"} $trace_logic # Make sure the value of LTPROOT LTPROOT=${LTPROOT:-`(cd ../../../../ ; pwd)`} export LTPROOT # Total number of the test case TST_TOTAL=2 export TST_TOTAL # Default of the test case ID and the test case count TCID=route4-change-if TST_COUNT=0 export TCID export TST_COUNT # Check the environmanet variable . check_envval || exit $TST_TOTAL # The number of times where route is changed NS_TIMES=${NS_TIMES:-10000} # The first 2 ocnted of the Network portion of the gateway address IPV4_NETWORK_PRE=${IPV4_NETWORK_PRE:-"10.0"} # Netmask of for the gateway IPV4_NETMASK_NUM=24 # Host portion of the IPv4 address LHOST_IPV4_HOST=${LHOST_IPV4_HOST:-"2"} # src RHOST_IPV4_HOST=${RHOST_IPV4_HOST:-"1"} # gateway # The destination network DST_NETWORK="10.10.0" # destination network would be 10.10.0.0/24 DST_HOST="5" DST_PORT="7" #----------------------------------------------------------------------- # # NAME: # do_setup # # DESCRIPTION: # Make a IPv4 connectivity # # SET VALUES: # rhost_ipv4addr - IPv4 Address of the remote host # lhost_ifname - Interface name of the local host # rhost_ifname - Interface name of the remote host # #----------------------------------------------------------------------- do_setup() { TCID=route4-change-if TST_COUNT=0 # Get the number of the test links link_total=`echo $LHOST_HWADDRS | wc -w` rhost_link_total=`echo $RHOST_HWADDRS | wc -w` if [ $link_total -ne $rhost_link_total ]; then tst_resm TBROK "The number of element in LHOST_HWADDRS differs from RHOST_HWADDRS" exit $TST_TOTAL fi if [ $link_total -lt 2 ]; then tst_resm TBROK "This test case requires plural Test Links" exit $TST_TOTAL fi lhost_ifname_array="" rhost_ifname_array="" link_num=0 while [ $link_num -lt $link_total ]; do # Get the Interface names of the local host lhost_ifname=`get_ifname lhost ${link_num}` if [ $? -ne 0 ]; then tst_resm TBROK "Failed to get the interface name at the local host" exit $TST_TOTAL fi lhost_ifname_array="$lhost_ifname_array $lhost_ifname" # Get the Interface names of the remote host rhost_ifname=`get_ifname rhost ${link_num}` if [ $? -ne 0 ]; then tst_resm TBROK "Failed to get the interface name at the remote host" exit $TST_TOTAL fi rhost_ifname_array="$rhost_ifname_array $rhost_ifname" # Initialize the interfaces of the remote host initialize_if rhost ${link_num} # Set IPv4 address to the interface of the remote host set_ipv4addr rhost ${link_num} "${IPV4_NETWORK_PRE}.${link_num}" ${RHOST_IPV4_HOST} if [ $? -ne 0 ]; then tst_resm TBROK "Failed to assign IP address to the interface $rhost_ifname at the remote host" exit $TST_TOTAL fi link_num=`expr $link_num + 1` done } #----------------------------------------------------------------------- # # NAME: # do_cleanup # # DESCRIPTION: # Recover the tested interfaces # #----------------------------------------------------------------------- do_cleanup() { # Make sure to kill the udp datagram sender killall -SIGHUP ns-udpsender >/dev/null 2>&1 # Initialize the interfaces link_num=0 while [ $link_num -lt $link_total ]; do initialize_if lhost ${link_num} initialize_if rhost ${link_num} link_num=`expr $link_num + 1` done } #----------------------------------------------------------------------- # # FUNCTION: # test_body # # DESCRIPTION: # main code of the test # # Arguments: # $1: define the test type # 1 - route command case # 2 - ip command case # #----------------------------------------------------------------------- test_body() { test_type=$1 TCID=route4-change-if0${test_type} TST_COUNT=$test_type case $test_type in 1) test_command="route" ;; 2) test_command="ip" ;; *) tst_resm TBROK "unspecified case" return 1 ;; esac tst_resm TINFO "Verify the kernel is not crashed when the interface of an IPv4 route is changed frequently by $test_command command in $NS_TIMES times" link_num=0 while [ $link_num -lt $link_total ]; do # Initialize the interface of the local host initialize_if lhost ${link_num} # Assign IPv4 address to the interface of the local host set_ipv4addr lhost ${link_num} "${IPV4_NETWORK_PRE}.${link_num}" ${LHOST_IPV4_HOST} if [ $? -ne 0 ]; then tst_resm TBROK "Failed to assign an IPv4 address at the local host" return 1 fi # Check the connectivity to the gateway field=`expr $link_num + 1` lhost_ifname=`echo $lhost_ifname_array | cut -d ' ' -f $field` check_icmpv4_connectivity $lhost_ifname "${IPV4_NETWORK_PRE}.${link_num}.${LHOST_IPV4_HOST}" if [ $? -ne 0 ]; then tst_resm TBROK "Test Link $link_num is somthing wrong." return 1 fi link_num=`expr $link_num + 1` done # Set the variables regarding the destination host dst_addr=${DST_NETWORK}.${DST_HOST} dst_network=${DST_NETWORK}.0 # Set the first route link_num=0 field=`expr $link_num + 1` lhost_ifname=`echo $lhost_ifname_array | cut -d ' ' -f $field` gateway="${IPV4_NETWORK_PRE}.${link_num}.${RHOST_IPV4_HOST}" case $test_type in 1) route add -net $dst_network netmask 255.255.255.0 gw $gateway dev $lhost_ifname ;; 2) ip route add ${dst_network}/24 via $gateway dev $lhost_ifname ;; esac # Load the route with UDP traffic ns-udpsender -f 4 -D $dst_addr -p $DST_PORT -b -s 1472 if [ $? -ne 0 ]; then tst_resm TFAIL "Failed to run a UDP datagram sender" return 1 fi # Loop for changing the route cnt=0 while [ $cnt -lt $NS_TIMES ]; do link_num=`expr $link_num + 1` if [ $link_num -ge $link_total ]; then link_num=0 fi pre_lhost_ifname=$lhost_ifname pre_gateway=$gateway field=`expr $link_num + 1` lhost_ifname=`echo $lhost_ifname_array | cut -d ' ' -f $field` gateway="${IPV4_NETWORK_PRE}.${link_num}.${RHOST_IPV4_HOST}" case $test_type in 1) route add -net $dst_network netmask 255.255.255.0 gw $gateway dev $lhost_ifname route del -net $dst_network netmask 255.255.255.0 gw $pre_gateway dev $pre_lhost_ifname ;; 2) ip route change ${dst_network}/24 via $gateway dev $lhost_ifname ;; esac if [ $? -ne 0 ]; then tst_resm TFAIL "Failed to change the gateway to $gateway" return 1 fi # Rerun if udp datagram sender is dead ps auxw | fgrep -v grep | grep ns-udpsender > /dev/null if [ $? -ne 0 ]; then ns-udpsender -f 4 -D $dst_addr -p $DST_PORT -b -s 1472 if [ $? -ne 0 ]; then tst_resm TFAIL "Failed to run a UDP datagram sender" return 1 fi fi cnt=`expr $cnt + 1` done # Kill the udp datagram sender killall -SIGHUP ns-udpsender tst_resm TPASS "Test is finished correctly." return 0 } #----------------------------------------------------------------------- # # Main # # Exit Value: # The number of the failure # #----------------------------------------------------------------------- RC=0 do_setup test_body 1 || RC=`expr $RC + 1` # Case of route command test_body 2 || RC=`expr $RC + 1` # Case of ip command do_cleanup exit $RC