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#!/bin/sh
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# Copyright (c) 2016 Oracle and/or its affiliates. All Rights Reserved.
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# Copyright (c) International Business Machines Corp., 2001
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License as
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# published by the Free Software Foundation; either version 2 of
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# the License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it would be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License 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, see <http://www.gnu.org/licenses/>.
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TCID=xinetd
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TST_TOTAL=2
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TST_CLEANUP="cleanup"
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. daemonlib.sh
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TST_USE_LEGACY_API=1
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. tst_net.sh
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setup()
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{
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[ -f "/usr/lib/systemd/system/telnet.socket" ] && \
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tst_brkm TCONF "xinetd doesn't manage telnet"
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tst_tmpdir
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tst_require_cmds xinetd diff telnet
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check_addr="127.0.0.1"
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ip a | grep -q inet6 && check_addr="$check_addr ::1"
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# Create custom xinetd.conf file.
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# tst_xinetd.conf.1 config file has telnet service disabled.
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cat > tst_xinetd.conf.1 <<-EOF
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defaults
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{
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instances = 25
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log_type = FILE /var/log/servicelog
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log_on_success = HOST PID
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log_on_failure = HOST
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disabled = telnet
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}
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EOF
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cat > tst_xinetd.conf.2 <<-EOF
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defaults
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{
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instances = 25
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log_type = FILE /var/log/servicelog
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log_on_success = HOST PID
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log_on_failure = HOST
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# disabled = telnet
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}
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service telnet
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{
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socket_type = stream
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protocol = tcp
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wait = no
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user = root
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server = /usr/sbin/in.telnetd
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server_args = -n
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no_access =
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flags = IPv6
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}
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EOF
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# create a backup of the original xinetd.conf file.
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ROD mv /etc/xinetd.conf xinetd.conf.orig
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}
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cleanup()
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{
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# restore the original xinetd.conf if a back up exits.
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[ -f xinetd.conf.orig ] && \
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mv xinetd.conf.orig /etc/xinetd.conf
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# restoring original services
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restart_daemon xinetd
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tst_rmdir
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}
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restart_xinetd()
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{
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tst_resm TINFO "restart xinetd"
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# restart xinetd to re-start the services
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restart_daemon xinetd > tst_xinetd.out 2>&1
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if [ $? -ne 0 ]; then
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cat tst_xinetd.out
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tst_brkm TBROK "unable to restart service with telnet disabled"
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fi
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# even if xinetd restart has zero exit value,
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# make certain there was no failure.
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grep -qi "fail" tst_xinetd.out && \
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tst_brkm TBROK "xinetd failed to restart"
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}
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# Description: - Test that xinetd reads the configuration file and starts or
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# stops services.
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# - restart xinetd with configuration file with telnet disabled.
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# - telnet to locahost should fail.
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# - restart xinetd with configuration file with telnet enabled.
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# - telnet to locahost should work.
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test01()
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{
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tst_resm TINFO "install the new config file with telnet disabled"
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ROD mv tst_xinetd.conf.1 /etc/xinetd.conf
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restart_xinetd
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for a in $check_addr; do
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echo '' | telnet $a 2>&1 | grep -qi \
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"telnet: connect to address $a: Connection refused"
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[ $? -ne 0 ] && \
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tst_brkm TFAIL "not expected output for 'telnet $a'"
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done
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tst_resm TPASS "expected output with telnet disabled"
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tst_resm TINFO "install the xinetd config file with telnet enabled"
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ROD mv tst_xinetd.conf.2 /etc/xinetd.conf
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restart_xinetd
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for a in $check_addr; do
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echo '' | telnet $a 2>&1 | grep -qi \
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"Connection closed by foreign host"
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[ $? -ne 0 ] && \
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tst_brkm TFAIL "not expected output for 'telnet $a'"
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done
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tst_resm TPASS "expected output with telnet enabled"
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}
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setup
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test01
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tst_exit
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