| #!/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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 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 <mitch@jp.ibm.com> |
| # |
| # 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 |