#!/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-redirect # # Description: # Verify the kernel is not crashed when the IPv4 route is modified by # ICMP Redirects frequently # # Setup: # See testcases/network/stress/README # # Author: # Mitsuru Chinen # # History: # Apr 07 2006 - Created (Mitsuru Chinen) # #----------------------------------------------------------------------- # Uncomment line below for debug output. #trace_logic=${trace_logic:-"set -x"} $trace_logic # The test case ID, the test case count and the total number of test case TCID=route4-redirect01 TST_TOTAL=1 TST_COUNT=1 export TCID export TST_COUNT export TST_TOTAL # Test description tst_resm TINFO "Verify the kernel is not crashed when the IPv4 route is modified by ICMP Redirects frequently" # Make sure the value of LTPROOT LTPROOT=${LTPROOT:-`(cd ../../../.. ; pwd)`} export LTPROOT # Check the environmanet variable . check_envval || exit $TST_TOTAL # The number of times where route is changed NS_TIMES=${NS_TIMES:-10000} # The number of the test link where tests run LINK_NUM=${LINK_NUM:-0} # Network portion of the IPv4 address IPV4_NETWORK=${IPV4_NETWORK:-"10.0.0"} # Netmask of for the tested network IPV4_NETMASK_NUM=24 # Broadcast address of the tested network IPV4_BROADCAST=${IPV4_NETWORK}.255 # Host portion of the IPv4 address LHOST_IPV4_HOST=${LHOST_IPV4_HOST:-"1"} # src RHOST_IPV4_HOST="2" # 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_cleanup # # DESCRIPTION: # Recover the tested interfaces # #----------------------------------------------------------------------- do_cleanup() { # Kill the redirector utility $LTP_RSH $RHOST killall -SIGHUP ns-icmp_redirector >/dev/null 2>&1 # Initialize the interfaces initialize_if lhost ${LINK_NUM} initialize_if rhost ${LINK_NUM} } #----------------------------------------------------------------------- # # NAME: # do_setup # # DESCRIPTION: # Set the initial route and start icmp redirect on the remote host # # 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() { # Make sure to clean up do_cleanup # Get the Interface name of 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 # Get the Interface name of 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 # Remove the link-local address of the remote host sleep 3 $LTP_RSH $RHOST "ip addr flush dev $rhost_ifname" > /dev/null # Assign IPv4 address to the interface of the local host set_ipv4addr lhost ${LINK_NUM} ${IPV4_NETWORK} ${LHOST_IPV4_HOST} if [ $? -ne 0 ]; then tst_resm TBROK "Failed to assign an IPv4 address at the local host" return 1 fi # Add route to the initial gateway route add -net ${DST_NETWORK}.0 netmask 255.255.255.0 gw ${IPV4_NETWORK}.${RHOST_IPV4_HOST} dev $lhost_ifname # Make sure the sysctl value is set for accepting the redirect sysctl -w net.ipv4.conf.${lhost_ifname}.accept_redirects=1 >/dev/null sysctl -w net.ipv4.conf.${lhost_ifname}.secure_redirects=0 >/dev/null # Run the redirector utility at the remote host ret=`$LTP_RSH $RHOST "${LTPROOT}/testcases/bin/ns-icmp_redirector -I $rhost_ifname -b ; "'echo $?'` if [ $ret -ne 0 ]; then tst_resm TBROK "Failed to run icmp redirector at the remote host" exit $TST_TOTAL fi } #----------------------------------------------------------------------- # # FUNCTION: # test_body # # DESCRIPTION: # main code of the test # # Arguments: # None # #----------------------------------------------------------------------- test_body() { # Loop for changing the route cnt=0 while [ $cnt -lt $NS_TIMES ]; do ns-udpsender -f 4 -D ${DST_NETWORK}.${DST_HOST} -p $DST_PORT -o -s 8 if [ $? -ne 0 ]; then tst_resm TBROK "Failed to run udp packet sender" return 1 fi cnt=`expr $cnt + 1` done tst_resm TPASS "Test is finished correctly." return 0 } #----------------------------------------------------------------------- # # Main # # Exit Value: # The number of the failure # #----------------------------------------------------------------------- RC=0 do_setup test_body || RC=`expr $RC + 1` do_cleanup exit $RC