[LTP] [PATCH] ssh-stress: Convert to new api
From: Petr Vorel <pvorel@suse.cz>
Date: 2021-06-14 07:14:37
Hi Joerg, [ Cc Alexey ]
From: Joerg Vehlow <redacted>
Apart from pure conversion: - Use "StrictModes no" in ssh config, to get rid of access permission problems; All part of the path of the authorized_keys file must not be writeable by anyone but the owner. This allows writing the file to the default temp directory - Moved all rhost scripts into ssh-stress.sh
+1 Nice work, LGTM, few small notes (could be fixed before merge). Reviewed-by: Petr Vorel <pvorel@suse.cz> Out of curiosity, did you test this on Two Host Configuration [2] (i.e. ssh)? Or just netns? https://github.com/linux-test-project/ltp/blob/master/testcases/network/README.md
Signed-off-by: Joerg Vehlow <redacted> --- .../network/stress/ssh/00_Descriptions.txt | 11 - testcases/network/stress/ssh/Makefile | 24 +- testcases/network/stress/ssh/ssh-stress.sh | 262 ++++++++++++------ .../network/stress/ssh/ssh-stress01-rmt.sh | 65 ----- .../network/stress/ssh/ssh-stress02-rmt.sh | 76 ----- .../network/stress/ssh/ssh-stress03-rmt.sh | 77 ----- 6 files changed, 176 insertions(+), 339 deletions(-) delete mode 100644 testcases/network/stress/ssh/00_Descriptions.txt delete mode 100755 testcases/network/stress/ssh/ssh-stress01-rmt.sh delete mode 100755 testcases/network/stress/ssh/ssh-stress02-rmt.sh delete mode 100755 testcases/network/stress/ssh/ssh-stress03-rmt.sh
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diff --git a/testcases/network/stress/ssh/00_Descriptions.txt b/testcases/network/stress/ssh/00_Descriptions.txt deleted file mode 100644 index 543e60d7d..000000000 --- a/testcases/network/stress/ssh/00_Descriptions.txt +++ /dev/null@@ -1,11 +0,0 @@ -ssh-stress01 - Verify the ssh connectivity over IPv4/IPv6 is not broken - after creating many ssh sessions - -ssh-stress02 - Verify the ssh connectivity over IPv4/IPv6 is not broken - after logged in/out by many clients asynchronously for a long time - -ssh-stress03 - Verify the ssh connectivity over IPv4/IPv6 is not broken - after forwarding TCP traffic for a long timediff --git a/testcases/network/stress/ssh/Makefile b/testcases/network/stress/ssh/Makefile index 1a6d052eb..7ebeec142 100644 --- a/testcases/network/stress/ssh/Makefile +++ b/testcases/network/stress/ssh/Makefile@@ -1,24 +1,6 @@ -# -# testcases/network/stress/ssh Makefile. -# -# Copyright (C) 2009, Cisco Systems Inc. -# -# 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. -# -# Ngie Cooper, October 2009 -# +# SPDX-License-Identifier: GPL-2.0-or-later +# Copyright (C) 2009, Cisco Systems Inc. +# Ngie Cooper, July 2009
top_srcdir ?= ../../../..
quoted hunk ↗ jump to hunk
diff --git a/testcases/network/stress/ssh/ssh-stress.sh b/testcases/network/stress/ssh/ssh-stress.sh index 516bce765..b571063a1 100755 --- a/testcases/network/stress/ssh/ssh-stress.sh +++ b/testcases/network/stress/ssh/ssh-stress.sh@@ -1,147 +1,231 @@ #!/bin/sh - +# SPDX-License-Identifier: GPL-2.0-or-later +# Copyright (c) 2021 Joerg Vehlow <joerg.vehlow@aox-tech.de> # Copyright (c) 2015 Oracle and/or its affiliates. All Rights Reserved. -# Copyright (c) International Business Machines Corp., 2005 -# -# 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 would 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 the Free Software Foundation, -# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA -# +# Copyright (c) International Business Machines Corp., 2005 # Author: Mitsuru Chinen <mitch@jp.ibm.com> -#
-TCID=ssh-stress -TST_TOTAL=3 TST_CLEANUP="cleanup" +TST_SETUP="setup" +TST_TESTFUNC="test" +TST_CNT=3 +TST_NEEDS_ROOT=1 +TST_NEEDS_TMPDIR=1 +TST_NEEDS_CMDS="sshd ssh od xargs"
-TST_USE_LEGACY_API=1 . tst_net.sh
-# Temporary directory to store sshd setting or ssh key -# Note: ssh doesn't work when those directory is under /tmp. -TMPDIR="/root" +# SSH config file on the remote host +RHOST_SSH_CONF= +# SSG command to connect from the remote host to the test host +RHOST_SSH= +# Processes started on the remote host, killed at cleanup +RHOST_PIDS= +# Netstress process started on the test host, killed at cleanup +NETSTRESS_PID=
cleanup()
{
+ local pidsHere needs to be pid as well.
+
# Stop the ssh daemon
- test -s sshd.pid && kill $(cat sshd.pid)
- pkill 'netstress$'
- tst_rmdir
- [ "$rtmpdir" ] && tst_rhost_run -c "rm -rf $rtmpdir"
- TMPDIR=
+ [ -s sshd.pid ] && kill $(cat sshd.pid)
+ [ -n "$NETSTRESS_PID" ] && kill -2 $NETSTRESS_PID >/dev/null 2>&1
+
+ for pid in $RHOST_PIDS; do
+ tst_rhost_run -c "kill -- $pid" >/dev/null 2>&1
+ done
+
+ # Kill all remaining ssh processes
+ tst_rhost_run -c "ps auwx | \
+ awk '\$0 ~ \"$RHOST_SSH_CONF\" && \$11 == \"ssh\" {print \$2}' | \
+ xargs -r -t kill -- >/dev/null 2>&1"
} setup()
{
- trap "tst_brkm TBROK 'test interrupted'" INT
-
- tst_require_root
- tst_require_cmds pkill sshd ssh od
-
- # Get the sshd command with absolute path
- SSHD=$(which sshd)
- test "$SSHD" || tst_brkm TBROK "sshd daemon is not found"
+ local port rc- check_icmpv${TST_IPVER}_connectivity $(tst_iface) $(tst_ipaddr rhost) || \
- tst_brkm TBROK "Failed to ping to $(tst_ipaddr rhost)"
+ check_icmpv${TST_IPVER}_connectivity $(tst_iface) $(tst_ipaddr rhost) \
+ || tst_brk TBROK "Failed to ping $(tst_ipaddr rhost)"Anything from testcases/network/stress/ns-tools/ is deprecated,
including check_icmpv{4,6}_connectivity. But this can be safely removed.
Although I don't see any connectivity check in tst_net.sh, it should be handled
there. IMHO it's needed at least for for two host based configuration, but it does not harm to test also netns based setup, thus somewhere after init_ltp_netspace.
port=$(tst_rhost_run -c "tst_get_unused_port ipv${TST_IPVER} stream")- tst_tmpdir - - tmpdir=$TST_TMPDIR - - cat << EOD > $tmpdir/sshd_config + cat << EOD > sshd_config Port $port ListenAddress $(tst_ipaddr) PermitRootLogin yes -AuthorizedKeysFile $tmpdir/authorized_keys +AuthorizedKeysFile $TST_TMPDIR/authorized_keys PasswordAuthentication no AllowTcpForwarding yes TCPKeepAlive yes UseDNS no -PidFile $tmpdir/sshd.pid +StrictModes no +PidFile $TST_TMPDIR/sshd.pid EOD
- $SSHD -f $tmpdir/sshd_config || \ - tst_brkm TBROK "Failed to run sshd daemon" - - tst_resm TINFO "Generate configuration file and key at the remote host" - rtmpdir=$(tst_rhost_run -c "mktemp -d -p $TMPDIR") - tst_rhost_run -s -c "ssh-keygen -t rsa -N \"\" -f $rtmpdir/id_rsa > /dev/null" + tst_res TINFO "Generate configuration file and key at the remote host" + tst_rhost_run -s -c "ssh-keygen -t rsa -N \"\" -f $TST_TMPDIR/id_rsa \ + >/dev/null"
- rconfig=$rtmpdir/ssh_config + RHOST_SSH_CONF=$TST_TMPDIR/ssh_config
tst_rhost_run -s -c "printf \"\ Port $port\n\ StrictHostKeyChecking no\n\ PasswordAuthentication no\n\ -UserKnownHostsFile $rtmpdir/known_hosts\n\ -IdentityFile $rtmpdir/id_rsa\n\" > $rconfig" +UserKnownHostsFile $TST_TMPDIR/known_hosts\n\ +IdentityFile $TST_TMPDIR/id_rsa\n\" > $RHOST_SSH_CONF"
- tst_rhost_run -s -c "chmod 700 $rtmpdir; chmod 600 $rtmpdir/*"
+ tst_res TINFO "Generate authorized_keys"
+ tst_rhost_run -c "cat ${TST_TMPDIR}/id_rsa.pub" > authorized_keys- tst_resm TINFO "Generate authorized_keys"
- tst_rhost_run -c "cat ${rtmpdir}/id_rsa.pub" > $tmpdir/authorized_keys
+ tst_res TINFO "restore context of authorized_keys"
+ rc=$(command -v restorecon)
+ [ -n "$rc" ] && $rc authorized_keys- tst_resm TINFO "restore context of authorized_keys" - local rc=$(which restorecon) - test "$rc" && $rc $tmpdir/authorized_keys + $(command -v sshd) -f $TST_TMPDIR/sshd_config || \ + tst_brk TBROK "Failed to run sshd daemon"
- chmod 700 $tmpdir - chmod 600 $tmpdir/* + RHOST_SSH="ssh -$TST_IPVER -F $RHOST_SSH_CONF $(tst_ipaddr)" }
-test01()
+test_ssh_connectivity()
{
- tst_resm TINFO "Creating '$CONNECTION_TOTAL' ssh sessions"
-
- tst_rhost_run -s -c "ssh-stress01-rmt.sh $TST_IPVER $(tst_ipaddr) \
- $rconfig $CONNECTION_TOTAL"
-
- tst_resm TPASS "Test is finished successfully"
+ tst_rhost_run -c "$RHOST_SSH 'true >/dev/null 2>&1' >/dev/null"
+ [ $? -ne 0 ] && tst_res TFAIL "SSH not reachable"I guess you removed -s (security), to get more descriptive error. But then you IMHO need to use tst_brk to quit the test. Or if it was deliberate to keep other tests running, then test1 would print TPASS "Test finished successfully" even it fails due this.
}
-test02()
+test1()
{
- tst_resm TINFO "Log in/out by many clients asynchronously"
- tst_resm TINFO "'$CONNECTION_TOTAL' clients, time $NS_DURATION sec"
+ local num all_conn pid- tst_rhost_run -s -c "ssh-stress02-rmt.sh $TST_IPVER $(tst_ipaddr) \ - $rconfig $CONNECTION_TOTAL $NS_DURATION" + tst_res TINFO "Verify the ssh connectivity over IPv4/IPv6 is not broken after creating many ssh sessions"
- tst_resm TPASS "Test is finished successfully" + test_ssh_connectivity + + RHOST_PIDS= + num=0 + while [ $num -lt $CONNECTION_TOTAL ]; do + pid=$(tst_rhost_run -c "$RHOST_SSH -N </dev/null 1>/dev/null 2>&1 \ + & \echo \$!") + RHOST_PIDS="$RHOST_PIDS $pid" + num=$(($num + 1)) + done + + tst_res TINFO "Killing all ssh sessions" + num=0 + for pid in $RHOST_PIDS; do + tst_rhost_run -c "kill $pid" >/dev/null + [ $? -ne 0 ] && num=$((num + 1)) + done + + [ $num -ne 0 ] && tst_brk TFAIL "Some ssh processes died during execution" + + test_ssh_connectivity + + tst_res TPASS "Test finished successfully" }
-test03()
+test2()
{
- tst_resm TINFO "Forwarding TCP traffic with $NS_TIMES requests"
+ local start_epoc pids total_connections elapse_epoc new_pids
+ local ssh_num wait_sec login_sec
+
+ tst_res TINFO "Verify the ssh connectivity over IPv4/IPv6 is not broken after logged in/out by many clients asynchronously for a long time"
+
+ test_ssh_connectivity
+
+ start_epoc=$(date +%s)
+ RHOST_PIDS=
+ total_connections=0
+ while true ; do
+ # Exit after the specified time has elapsed.
+ elapse_epoc=$(( $(date +%s) - $start_epoc))
+ [ $elapse_epoc -ge $NS_DURATION ] && break
+
+ new_pids=
+ for pid in $RHOST_PIDS; do
+ if tst_rhost_run -c "kill -0 $pid" >/dev/null; then
+ new_pids="$new_pids $pid"
+ fi
+ done
+ RHOST_PIDS="$new_pids"
+
+ # Do not make ssh connection over the specified quantity
+ ssh_num=$(echo "$pids" | wc -w)
+ if [ $ssh_num -ge $CONNECTION_TOTAL ]; then
+ tst_res TINFO "Max connections reached"
+ tst_sleep 1+ continue;
nit: trailing ; unneeded (error from the original ssh-stress02-rmt.sh)
+ fi + + # specified wait time and login time + wait_sec=$(( $(od -A n -d -N 1 /dev/urandom) * 3 / 255 )) + login_sec=$(( $(od -A n -d -N 1 /dev/urandom) * 10 / 255 )) + + # Login to the server + pid=$(tst_rhost_run -c "( \ + sleep $wait_sec && $RHOST_SSH -l root \"sleep $login_sec\" \ + ) </dev/null 1>/dev/null 2>&1 & echo \$!" + ) + RHOST_PIDS="$RHOST_PIDS $pid" + total_connections=$(( total_connections + 1 )) + done + + tst_res TINFO "Waiting for all connections to terminate" + while [ -n "$RHOST_PIDS" ]; do + tst_sleep 1s
nit: I'd be consistent with previous (1s vs. 1). The rest LGTM. Kind regards, Petr
+ new_pids= + for pid in $RHOST_PIDS; do + if tst_rhost_run -c "kill -0 $pid" >/dev/null 2>&1; then + new_pids="$new_pids $pid" + fi + done + RHOST_PIDS="$new_pids" + done + + test_ssh_connectivity + + tst_res TPASS "Test finished successfully ($total_connections connections)" +}
- # Run a TCP traffic server
+test3()
+{
+ local port lport localhost rhost ret
+ tst_res TINFO "Verify the ssh connectivity over IPv4/IPv6 is not broken after forwarding TCP traffic for a long time"
+
+ localhost="127.0.0.1"
+ rhost="$(tst_ipaddr)"
+ if [ "$TST_IPVER" = "6" ]; then
+ localhost="::1"
+ rhost="[$(tst_ipaddr)]"
+ fi
+
+ test_ssh_connectivity
+
+ # Get a port for the server and a forwarding port
port=$(tst_get_unused_port ipv${TST_IPVER} stream)
+ lport=$(tst_rhost_run -c "tst_get_unused_port ipv${TST_IPVER} stream")- netstress -R 3 -g $port > tcp_server.log 2>&1 & + # Start a tcp server + netstress -R 3 -g $port >/dev/null 2>&1 & + NETSTRESS_PID=$!
- tst_rhost_run -s -c "ssh-stress03-rmt.sh $TST_IPVER $(tst_ipaddr) \ - $rconfig $port $NS_TIMES" + # Setup an ssh tunnel from the remote host to testhost + RHOST_PIDS=$(tst_rhost_run -c \ + "$RHOST_SSH -N -L $lport:$rhost:$port </dev/null 1>/dev/null 2>&1 \ + & echo \$!") + tst_sleep 1
- tst_resm TPASS "Test is finished successfully" -} + # Start the TCP traffic clients + tst_rhost_run -s -c "netstress -r $NS_TIMES -l -H $localhost -g $lport > /dev/null"
-setup + kill $RHOST_PIDS + + test_ssh_connectivity
-test01 -test02 -test03 + tst_res TPASS "Test finished successfully" +}
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-tst_exit +tst_rundiff --git a/testcases/network/stress/ssh/ssh-stress01-rmt.sh b/testcases/network/stress/ssh/ssh-stress01-rmt.sh deleted file mode 100755 index b2f65793e..000000000 --- a/testcases/network/stress/ssh/ssh-stress01-rmt.sh +++ /dev/null@@ -1,65 +0,0 @@ -#!/bin/sh - -# Copyright (c) 2015 Oracle and/or its affiliates. All Rights Reserved. -# Copyright (c) International Business Machines Corp., 2005 -# -# 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 would 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 the Free Software Foundation, -# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA -# -# Author: Mitsuru Chinen <mitch@jp.ibm.com> -# - -TCID="ssh_stress01_rmt" -TST_TOTAL=1 - -. test.sh - -if [ $# -ne 4 ]; then - tst_brkm TBROK "Usage: $0 ipver rhost config connections" -fi - -ip_ver="$1" -server_ipaddr="$2" -ssh_config="$3" -connections="$4" - -ssh -$ip_ver -F $ssh_config $server_ipaddr \ - "true < /dev/null > /dev/null 2>&1" > /dev/null - -[ $? -ne 0 ] && tst_brkm TBROK "Can't connect to '$server_ipaddr'" - -# Make ssh connections -num=0 -while [ $num -lt $connections ]; do - ssh -$ip_ver -f -N -F $ssh_config $server_ipaddr - if [ $? -ne 0 ]; then - tst_resm TINFO "'$num' seems the max num of ssh conn" - break - fi - num=$(($num + 1)) -done - -# Disconnect all ssh connection -all_conn=$(ps auxw | grep -Fv grep | \ - grep "ssh[[:blank:]].*${ssh_config}" | awk '{print $2}') -kill $all_conn - -# Check the connectivity again -ssh -$ip_ver -F $ssh_config $server_ipaddr \ - "true < /dev/null > /dev/null 2>&1" > /dev/null -if [ $? -ne 0 ]; then - tst_brkm TBROK "Failed to connect $server_ipaddr" -fi - -tst_exitdiff --git a/testcases/network/stress/ssh/ssh-stress02-rmt.sh b/testcases/network/stress/ssh/ssh-stress02-rmt.sh deleted file mode 100755 index 05f4c3847..000000000 --- a/testcases/network/stress/ssh/ssh-stress02-rmt.sh +++ /dev/null@@ -1,76 +0,0 @@ -#!/bin/sh - -# Copyright (c) 2015 Oracle and/or its affiliates. All Rights Reserved. -# Copyright (c) International Business Machines Corp., 2005 -# -# 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 would 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 the Free Software Foundation, -# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA -# -# Author: Mitsuru Chinen <mitch@jp.ibm.com> -# - -TCID="ssh_stress02_rmt" -TST_TOTAL=1 - -. test.sh - -# Check the arguments -if [ $# -ne 5 ]; then - tst_brkm TBROK "Usage: $0 ipver rhost config connections duration" -fi - -ip_ver="$1" -server_ipaddr="$2" -ssh_config="$3" -connections="$4" -duration="$5" - -ssh -$ip_ver -F $ssh_config $server_ipaddr \ - "true < /dev/null > /dev/null 2>&1" > /dev/null -[ $? -ne 0 ] && tst_brkm TBROK "Failed to connect '$server_ipaddr'" - -start_epoc=$(date +%s) -while true ; do - # Exit when the specified seconds have passed. - current_epoc=$(date +%s) - elapse_epoc=$(($current_epoc - $start_epoc)) - - [ $elapse_epoc -ge $duration ] && break - - # Do not make ssh connection over the specified quantity - ssh_num=$(jobs | wc -l) - if [ $ssh_num -ge $connections ]; then - sleep 1 - continue; - fi - - # specified wait time and login time - wait_sec=$(($(od -A n -d -N 1 /dev/random) * 3 / 255)) - login_sec=$(($(od -A n -d -N 1 /dev/random) * 10 / 255)) - - # Login to the server - (sleep $wait_sec ; ssh -$ip_ver -F $ssh_config -l root $server_ipaddr \ - "sleep $login_sec < /dev/null > /dev/null 2>&1") > \ - /dev/null 2>&1 & -done - -# wait for the finish of all process -wait - -# Check the connectivity again -ssh -$ip_ver -F $ssh_config $server_ipaddr \ - "true < /dev/null > /dev/null 2>&1" > /dev/null -[ $? -ne 0 ] && tst_brkm TBROK "Failed to connect '$server_ipaddr'" - -tst_exitdiff --git a/testcases/network/stress/ssh/ssh-stress03-rmt.sh b/testcases/network/stress/ssh/ssh-stress03-rmt.sh deleted file mode 100755 index da1abebcd..000000000 --- a/testcases/network/stress/ssh/ssh-stress03-rmt.sh +++ /dev/null@@ -1,77 +0,0 @@ -#!/bin/sh - -# Copyright (c) 2015 Oracle and/or its affiliates. All Rights Reserved. -# Copyright (c) International Business Machines Corp., 2005 -# -# 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 would 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 the Free Software Foundation, -# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA -# -# Author: Mitsuru Chinen <mitch@jp.ibm.com> -# - -TCID="ssh_stress03_rmt" -TST_TOTAL=1 - -. test.sh - -# Check the arguments -if [ $# -ne 5 ]; then - tst_brkm TBROK "Usage: $0 ipver rhost config port requests" -fi - -ip_ver="$1" -server_ipaddr="$2" -ssh_config="$3" -rport="$4" -requests="$5" - -ssh -$ip_ver -F $ssh_config $server_ipaddr \ - "true < /dev/null > /dev/null 2>&1" > /dev/null -[ $? -ne 0 ] && tst_brkm TBROK "Failed to connect '$server_ipaddr'" - -lport=$(tst_get_unused_port ipv${ip_ver} stream) - -# Set the ssh port-forwarding -case $ip_ver in -4) - localhost="127.0.0.1" - ssh -4 -f -N -L $lport:$server_ipaddr:$rport \ - root@$server_ipaddr -F $ssh_config -;; -6) - localhost="::1" - ssh -6 -f -N -L $lport:[$server_ipaddr]:$rport \ - root@$server_ipaddr -F $ssh_config -;; -esac - -# Start the TCP traffic clients -netstress -r $requests -l -H $localhost -g $lport > /dev/null -ret=$? - -# Stop the ssh port forwarding -all_conn=$(ps auxw | grep -Fv grep | \ - grep "ssh[[:blank:]].*${ssh_config}" | awk '{print $2}') -for ssh_pid in $all_conn ; do - kill $ssh_pid -done - -[ $ret -ne 0 ] && tst_brkm TBROK "TCP traffic client is dead" - -# Check the connectivity again -ssh -$ip_ver -F $ssh_config $server_ipaddr \ - "true < /dev/null > /dev/null 2>&1" > /dev/null -[ $? -ne 0 ] && tst_brkm TBROK "Failed to connect '$server_ipaddr'" - -tst_exit