#!/bin/sh
################################################################################
## ##
## Copyright (c) International Business Machines Corp., 2006 ##
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## This program is free software; you can redistribute it and#or modify ##
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## 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. ##
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################################################################################
#
# File:
# route4-change-dst
#
# Description:
# Verify the kernel is not crashed when the destination 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 16 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-dst
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 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="255.255.255.0"
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:-"2"} # src
RHOST_IPV4_HOST=${RHOST_IPV4_HOST:-"1"} # gateway
# The destination network
DST_NETWORK_PREFIX="10.10" # destination network would be 10.10.n.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-dst
TST_COUNT=0
# Initialize the interfaces of the remote host
initialize_if rhost ${LINK_NUM}
# Set IPv4 address to the interfaces
set_ipv4addr rhost ${LINK_NUM} ${IPV4_NETWORK} ${RHOST_IPV4_HOST}
if [ $? -ne 0 ]; then
tst_resm TBROK "Failed to add an IPv4 address the remote host"
exit $TST_TOTAL
fi
# IPv4 address of the remote host (gateway)
rhost_ipv4addr="${IPV4_NETWORK}.${RHOST_IPV4_HOST}"
# 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
}
#-----------------------------------------------------------------------
#
# NAME:
# do_cleanup
#
# DESCRIPTION:
# Recover the tested interfaces
#
#-----------------------------------------------------------------------
do_cleanup()
{
# Initialize the interfaces
initialize_if lhost ${LINK_NUM}
initialize_if rhost ${LINK_NUM}
}
#-----------------------------------------------------------------------
#
# 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=$1
TCID=route4-change-dst0${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 destination of an IPv4 route is changed frequently by $test_command command in $NS_TIMES times"
# 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} ${LHOST_IPV4_HOST}
if [ $? -ne 0 ]; then
tst_resm TBROK "Failed to assign an IPv4 address at the local host"
return 1
fi
lhost_ipv4addr="${IPV4_NETWORK}.${LHOST_IPV4_HOST}"
# Check the connectivity to the gateway
check_icmpv4_connectivity $lhost_ifname $rhost_ipv4addr
if [ $? -ne 0 ]; then
tst_resm TBROK "Test Link $LINK_NUM is somthing wrong."
return 1
fi
# Start the loop
cnt=0
while [ $cnt -lt $NS_TIMES ]; do
# Define the destination IP address
dst_network_postfix=`expr $cnt % 255`
dst_addr=${DST_NETWORK_PREFIX}.${dst_network_postfix}.${DST_HOST}
dst_network=${DST_NETWORK_PREFIX}.${dst_network_postfix}.0
# Add the route
case $test_type in
1)
route add -net $dst_network netmask 255.255.255.0 gw $rhost_ipv4addr dev $lhost_ifname
;;
2)
ip route add ${dst_network}/24 via $rhost_ipv4addr dev $lhost_ifname
;;
esac
if [ $? -ne 0 ]; then
tst_resm TFAIL "Failed to add the route to ${dst_network}/24"
return 1
fi
# Load the route with UDP datagram
ns-udpsender -f 4 -D $dst_addr -p $DST_PORT -o -s 1472
if [ $? -ne 0 ]; then
tst_resm TFAIL "Failed to run a UDP datagram sender"
return 1
fi
# Delete the route
case $test_type in
1)
route del -net $dst_network netmask 255.255.255.0 gw $rhost_ipv4addr dev $lhost_ifname
;;
2)
ip route del ${dst_network}/24 via $rhost_ipv4addr dev $lhost_ifname
;;
esac
if [ $? -ne 0 ]; then
tst_resm TFAIL "Cannot delte the route to ${ADDDEL_ROUTE}"
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 1 || RC=`expr $RC + 1` # Case of route command
test_body 2 || RC=`expr $RC + 1` # Case of ip command
do_cleanup
exit $RC