530 lines
14 KiB
Bash
530 lines
14 KiB
Bash
#!/bin/sh
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################################################################################
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## ##
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## Copyright (c) International Business Machines Corp., 2005 ##
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## ##
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## This program is free software; you can redistribute it and#or modify ##
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## it under the terms of the GNU General Public License as published by ##
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## the Free Software Foundation; either version 2 of the License, or ##
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## (at your option) any later version. ##
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## ##
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## This program is distributed in the hope that it will be useful, but ##
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## WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY ##
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## or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License ##
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## for more details. ##
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## ##
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## You should have received a copy of the GNU General Public License ##
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## along with this program; if not, write to the Free Software ##
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## Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA ##
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## ##
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## ##
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################################################################################
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#
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# File:
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# tcp4-uni-basic01
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#
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# Description:
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# Verify that the kernel is not crashed with a connection to with
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# the following condition:
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# - The version of IP is IPv4
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# - Network is not delayed
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# - IPsec is not used
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# - Disable window scaling
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# - Enable Nagle algorithm
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# - Enable TCP Duplicate SACK support
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# - Enable SACK Support
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# - No packet are lost
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# - No packet are duplicated
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# - Disable TSO if it is avalable
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#
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# *) This script may be read by the other test case
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#
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# Setup:
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# See testcases/network/stress/README
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#
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# Author:
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# Mitsuru Chinen <mitch@jp.ibm.com>
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#
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# History:
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# Oct 19 2005 - Created (Mitsuru Chinen)
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#
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#-----------------------------------------------------------------------
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# Uncomment line below for debug output.
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#trace_logic=${trace_logic:-"set -x"}
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$trace_logic
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# The test case ID, the test case count and the total number of test case
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TCID=${TCID:-tcp4-uni-basic01}
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TST_TOTAL=1
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TST_COUNT=1
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export TCID
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export TST_COUNT
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export TST_TOTAL
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# Test description
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NON_BASIC=${NON_BASIC:-false}
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$NON_BASIC || tst_resm TINFO "Verify that the kernel is not crashed by a TCP connection"
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# Make sure the value of LTPROOT
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LTPROOT=${LTPROOT:-`(cd ../../../../.. ; pwd)`}
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export LTPROOT
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# Check the environmanet variable
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. check_envval || exit $TST_TOTAL
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# Dulation of the test [sec]
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NS_DURATION=${NS_DURATION:-3600} # 1 hour
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# The number of the test link where tests run
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LINK_NUM=${LINK_NUM:-0}
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# The version of IP
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IP_VER=${IP_VER:-4}
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# true, if ipsec is used
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DO_IPSEC=${DO_IPSEC:-false}
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# The value of SPI
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SPI=${SPI:-1000}
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# IPsec Protocol ( ah / esp / ipcomp )
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IPSEC_PROTO=${IPSEC_PROTO:-ah}
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# IPsec Mode ( transport / tunnel )
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IPSEC_MODE=${IPSEC_MODE:-transport}
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# true, if network is delayed
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DO_NET_DELAY=${DO_NET_DELAY:-false}
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# Amount of network delay [ms]
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NET_DELAY=${NET_DELAY:-600}
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# The deflection of network delay [ms]
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NET_DELAY_DEFL=${NET_DELAY_DEFL:-200}
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# true, if some packets are lost
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DO_PACKET_LOSS=${DO_PACKET_LOSS:-false}
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# Rate of packet loss [%]
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PACKET_LOSS_RATE=${PACKET_LOSS_RATE:-8}
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# true, if some packets are duplicated
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DO_PACKET_DUP=${DO_PACKET_DUP:-false}
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# Rate of packet dupulication [%]
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PACKET_DUP_RATE=${PACKET_DUP_RATE:-1}
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# true, if test is for small sending (Namely, disable NAGLE algorithm)
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DO_SMALL_SEND=${DO_SMALL_SEND:-false}
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# true, if test is for window scaling
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DO_WINDOW_SCALING=${DO_WINDOW_SCALING:-false}
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# true, if test is for DSACK
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DO_DSACK=${DO_DSACK:-true}
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# true, if test is for SACK
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DO_SACK=${DO_SACK:-true}
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# true, if test is for TSO
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DO_TSO=${DO_TSO:-false}
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#-----------------------------------------------------------------------
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#
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# Function: do_cleanup
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#
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# Description:
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# Recover the system configuration
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#
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#-----------------------------------------------------------------------
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do_cleanup()
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{
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# Kill the tcp traffic server
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killall_tcp_traffic
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# Enable window scaling
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sysctl -w net.ipv4.tcp_window_scaling=1 >/dev/null 2>&1
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# Enable TCP Duplicate SACK support
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sysctl -w net.ipv4.tcp_dsack=1 >/dev/null 2>&1
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# Enable SACK support
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sysctl -w net.ipv4.tcp_sack=1 >/dev/null 2>&1
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# Restore the tcp segmentation offload setting
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if [ x${tso_orig} != x ]; then
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ethtool -K $lhost_ifname tso $tso_orig
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fi
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# Unset SAD/SPD
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output_ipsec_conf flush | setkey -c >/dev/null 2>&1
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$LTP_RSH $RHOST ${LTPROOT}/'testcases/bin/output_ipsec_conf flush | PATH=/sbin:/usr/sbin:$PATH setkey -c' >/dev/null 2>&1
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# Disable network emulator
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if [ x$rhost_ifname = x ]; then
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rhost_ifname=`get_ifname rhost $LINK_NUM`
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fi
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$LTP_RSH $RHOST "PATH=/sbin:/usr/sbin:$PATH tc qdisc del dev $rhost_ifname root netem" >/dev/null 2>&1
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# Clean up each interface
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initialize_if lhost ${LINK_NUM} || exit 1
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initialize_if rhost ${LINK_NUM} || exit 1
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}
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#-----------------------------------------------------------------------
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#
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# Function: do_setup
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#
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# Description:
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# Setup the system for testing
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#
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#-----------------------------------------------------------------------
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do_setup()
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{
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# Output the informaion
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tst_resm TINFO "- Test duration is $NS_DURATION [sec]"
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tst_resm TINFO "- Version of IP is IPv${IP_VER}"
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# Addtional server option
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server_opt=""
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# Addtional client option
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client_opt=""
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# Original TSO parameter
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tso_orig=""
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# Check the remote host has netem functionality
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if $DO_NET_DELAY || $DO_PACKET_LOSS || $DO_PACKET_DUP ; then
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message=`check_netem`
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if [ $? -ne 0 ]; then
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tst_resm TBROK "$message"
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exit 1
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fi
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fi
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$DO_NET_DELAY && tst_resm TINFO "- Network delay is ${NET_DELAY}ms +/- ${NET_DELAY_DEFL}ms"
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$DO_PACKET_LOSS && tst_resm TINFO "- Packet loss rate is ${PACKET_LOSS_RATE}%%"
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$DO_PACKET_DUP && tst_resm TINFO "- Packet duplication rate is ${PACKET_DUP_RATE}%%"
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# Check the setkey command is available
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if $DO_IPSEC ; then
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message=`check_setkey`
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if [ $? -ne 0 ]; then
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tst_resm TBROK "$message"
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exit 1
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fi
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case $IPSEC_PROTO in
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ah)
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tst_resm TINFO "- IPsec [ AH / $IPSEC_MODE ]"
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;;
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esp)
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tst_resm TINFO "- IPsec [ ESP / $IPSEC_MODE ]"
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;;
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ipcomp)
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tst_resm TINFO "- IPcomp [ $IPSEC_MODE ]"
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;;
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esac
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fi
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# name of interface of the local/remote host
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lhost_ifname=`get_ifname lhost $LINK_NUM`
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if [ $? -ne 0 ]; then
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tst_resm TBROK "Failed to get the interface name at the local host"
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exit $TST_TOTAL
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fi
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rhost_ifname=`get_ifname rhost $LINK_NUM`
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if [ $? -ne 0 ]; then
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tst_resm TBROK "Failed to get the interface name at the remote host"
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exit $TST_TOTAL
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fi
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# Initialize the system configuration
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do_cleanup
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# Call do_cleanup function before exit
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trap do_cleanup 0
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# Add option for small sending test
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if $DO_SMALL_SEND ; then
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server_opt="-s"
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fi
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# Configure window scaling parameter
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if $DO_WINDOW_SCALING ; then
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server_opt="-w"
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client_opt="-w"
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sysctl -w net.ipv4.tcp_window_scaling=1 >/dev/null
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if [ $? -ne 0 ]; then
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tst_resm TBROK "Failed to enable window scaling"
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exit 1
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fi
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else
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sysctl -w net.ipv4.tcp_window_scaling=0 >/dev/null 2>&1
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fi
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# Configure DSACK parameter
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if $DO_DSACK ; then
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sysctl -w net.ipv4.tcp_dsack=1 >/dev/null
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if [ $? -ne 0 ]; then
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tst_resm TBROK "Failed to enable Duplicate SACK"
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exit 1
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fi
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else
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sysctl -w net.ipv4.tcp_dsack=0 >/dev/null 2>&1
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fi
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# Configure SACK parameter
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if $DO_SACK ; then
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sysctl -w net.ipv4.tcp_sack=1 >/dev/null
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if [ $? -ne 0 ]; then
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tst_resm TBROK "Failed to enable SACK"
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exit 1
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fi
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else
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sysctl -w net.ipv4.tcp_sack=0 >/dev/null 2>&1
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fi
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# Store the current TSO parameter, then configure it
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offload_info=`mktemp -p $TMPDIR`
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ethtool -k $lhost_ifname > $offload_info 2>/dev/null
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fgrep "tcp segmentation offload" $offload_info >/dev/null 2>&1
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if [ $? -ne 0 ]; then
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if $DO_TSO ; then
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tst_resm TCONF "The device at $lhost_ifname does not support TSO."
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rm -f $offload_info
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exit 1
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fi
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tso_orig=`fgrep "tcp segmentation offload" $offload_info | sed -e 's/^.*: //'`
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if $DO_TSO ; then
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server_opt="-w"
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client_opt="-w"
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ethtool -K $lhost_ifname tso on
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else
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ethtool -K $lhost_ifname tso off
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fi
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fi
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rm -f $offload_info
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# Configure the network interface
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case $IP_VER in
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4)
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# Network portion of the IPv4 address
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network_part=${IPV4_NETWORK:-"10.0.0"}
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# Netmask of the IPv4 network
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network_mask=24
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# Host portion of the IPv4 address
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lhost_host_part=${LHOST_IPV4_HOST:-"2"} # local host
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rhost_host_part=${RHOST_IPV4_HOST:-"1"} # remote host
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# Set IPv4 addresses to the interfaces
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set_ipv4addr lhost $LINK_NUM $network_part $lhost_host_part
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if [ $? -ne 0 ]; then
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tst_resm TBROK "Failed to add any IP address at the local host"
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exit 1
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fi
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set_ipv4addr rhost $LINK_NUM $network_part $rhost_host_part
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if [ $? -ne 0 ]; then
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tst_resm TBROK "Failed to add any IP address at the remote host"
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exit 1
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fi
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# IPv4 address of the local/remote host
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lhost_addr="${network_part}.${lhost_host_part}"
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rhost_addr="${network_part}.${rhost_host_part}"
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;;
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6)
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# Network portion of the IPv6 address
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network_part="fd00:1:1:1"
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# Netmask of the IPv6 network
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network_mask=64
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# Host portion of the IPv6 address
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lhost_host_part=":2" # local host
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rhost_host_part=":1" # remote host
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# Set IPv6 addresses to the interfaces
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add_ipv6addr lhost $LINK_NUM $network_part $lhost_host_part
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if [ $? -ne 0 ]; then
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tst_resm TBROK "Failed to add any IP address at the local host"
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exit 1
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fi
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add_ipv6addr rhost $LINK_NUM $network_part $rhost_host_part
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if [ $? -ne 0 ]; then
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tst_resm TBROK "Failed to add any IP address at the remote host"
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exit 1
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fi
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# IPv6 address of the local/remote host
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lhost_addr="${network_part}:${lhost_host_part}"
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rhost_addr="${network_part}:${rhost_host_part}"
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;;
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*)
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tst_resm TBROK "Unknown IP version"
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;;
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esac
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netem_param=
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# Make the network delay
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if $DO_NET_DELAY ; then
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netem_param="delay ${NET_DELAY}ms ${NET_DELAY_DEFL}ms distribution normal"
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ret=`$LTP_RSH $RHOST 'PATH=/sbin:/usr/sbin:$PATH tc' qdisc add dev $rhost_ifname root netem $netem_param' ; echo $?'`
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if [ $ret -ne 0 ]; then
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tst_resm TBROK "Failed to make the delayed network"
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exit 1
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fi
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fi
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# Make some packets lost
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if $DO_PACKET_LOSS ; then
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tc_cmd="add"
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if [ x"$netem_param" != x ]; then
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tc_cmd="change"
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fi
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netem_param="loss ${PACKET_LOSS_RATE}% $netem_param"
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ret=`$LTP_RSH $RHOST 'PATH=/sbin:/usr/sbin:$PATH tc' qdisc $tc_cmd dev $rhost_ifname root netem $netem_param' ; echo $?'`
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if [ $ret -ne 0 ]; then
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tst_resm TBROK "Failed to use netem functionality"
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exit 1
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fi
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fi
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# Make some packets duplicated
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if $DO_PACKET_DUP ; then
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tc_cmd="add"
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if [ x"$netem_param" != x ]; then
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tc_cmd="change"
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fi
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netem_param="duplicate ${PACKET_DUP_RATE}% $netem_param"
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ret=`$LTP_RSH $RHOST 'PATH=/sbin:/usr/sbin:$PATH tc' qdisc $tc_cmd dev $rhost_ifname root netem $netem_param' ; echo $?'`
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if [ $ret -ne 0 ]; then
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tst_resm TBROK "Failed to use netem functionality"
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exit 1
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fi
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fi
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# Configure SAD/SPD
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if $DO_IPSEC ; then
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# Set SAD/SPD according to the variables
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ipsec_log=`mktemp -p $TMPDIR`
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output_ipsec_conf src \
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$IPSEC_PROTO $IPSEC_MODE $SPI $lhost_addr $rhost_addr \
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| setkey -c 2>&1 | tee $ipsec_log
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if [ $? -ne 0 -o -s $ipsec_log ]; then
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tst_resm TBROK "Failed to configure SAD/SPD on the local host."
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rm -f $ipsec_log
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exit 1
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fi
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$LTP_RSH $RHOST ${LTPROOT}/testcases/bin/output_ipsec_conf dst $IPSEC_PROTO $IPSEC_MODE $SPI $lhost_addr $rhost_addr' | PATH=/sbin:/usr/sbin:$PATH setkey -c' 2>&1 | tee $ipsec_log
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if [ $? -ne 0 -o -s $ipsec_log ]; then
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tst_resm TBROK "Failed to configure SAD/SPD on the remote host."
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rm -f $ipsec_log
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exit 1
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fi
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fi
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# Make sure the connectvity
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case $IP_VER in
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4)
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ret=`$LTP_RSH $RHOST ${LTPROOT}/testcases/bin/check_icmpv4_connectivity $rhost_ifname $lhost_addr' ; echo $?'`
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if [ $ret -ne 0 ]; then
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tst_resm TBROK "There is no IPv4 connectivity."
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exit 1
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fi
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;;
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6)
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ret=`$LTP_RSH $RHOST ${LTPROOT}/testcases/bin/check_icmpv6_connectivity $rhost_ifname $lhost_addr' ; echo $?'`
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if [ $ret -ne 0 ]; then
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tst_resm TBROK "There is no IPv6 connectivity."
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exit 1
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fi
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;;
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esac
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}
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#-----------------------------------------------------------------------
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#
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# Main
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#
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#
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do_setup
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# Find the available consecutive ports
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server_port=`find_portbundle tcp 1025 1`
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if [ $? -ne 0 ]; then
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tst_resm TBROK "No port is available."
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exit 1
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fi
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# Run a tcp traffic server
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info_file=`mktemp -p $TMPDIR`
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ns-tcpserver -b -f $IP_VER -p $server_port -o $info_file $server_opt
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if [ $? -ne 0 ]; then
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tst_resm TFAIL "Failed to run a tcp traffic server."
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rm -f $info_file
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exit 1
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fi
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while true ; do
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if [ -s $info_file ]; then
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break
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fi
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done
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server_pid=`grep PID: $info_file | cut -f 2 -d ' '`
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rm -f $info_file
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# Run a tcp taffic client
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ret=`$LTP_RSH $RHOST ${LTPROOT}/testcases/bin/ns-tcpclient -b -f $IP_VER -S $lhost_addr -p $server_port $client_opt' ; echo $?'`
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if [ $ret -ne 0 ]; then
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tst_resm TFAIL "Failed to run a tcp traffic client"
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exit 1
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fi
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start_epoc=`date +%s`
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while true ; do
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current_epoc=`date +%s`
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elapse_epoc=`expr $current_epoc - $start_epoc`
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if [ $elapse_epoc -ge $NS_DURATION ]; then
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killall -SIGHUP ns-tcpserver
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break
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fi
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# Watch the TCP traffic server
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ps auxw | fgrep ns-tcpserver | fgrep -l $server_pid >/dev/null 2>&1
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if [ $? -ne 0 ]; then
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tst_resm TFAIL "tcp traffic server is dead in $elapse_epoc [sec]"
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exit 1
|
|
fi
|
|
sleep 1
|
|
done
|
|
|
|
|
|
#-----------------------------------------------------------------------
|
|
#
|
|
# Clean up
|
|
#
|
|
|
|
tst_resm TPASS "Test is finished successfully."
|
|
exit 0
|