#!/bin/bash
#
# Copyright (C) 2023 Nikos Mavrogiannopoulos
#
# This file is part of ocserv.
#
# ocserv 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.
#
# ocserv 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 GnuTLS; if not, write to the Free Software Foundation,
# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.

SERV="${SERV:-../src/ocserv}"
srcdir=${srcdir:-.}
PIDFILE=ocserv-pid.$$.tmp
CLIPID=oc-pid.$$.tmp
IP=$(command -v ip)
TMPFILE=$(mktemp)

. `dirname $0`/common.sh

eval "${GETPORT}"

if test -z "${IP}";then
	echo "no IP tool is present"
	exit 1
fi

if test "$(id -u)" != "0";then
	echo "This test must be run as root"
	exit 77
fi

function finish {
  echo " * Cleaning up..."
  cleanup_client_server
}
trap finish EXIT

OCCTL_SOCKET=./ipv6-no-$$.socket
USERNAME=test

. `dirname $0`/random-net.sh
. `dirname $0`/ns.sh

update_config ipv6-iface.config
if test "$VERBOSE" = 1;then
DEBUG="-d 3"
fi

${CMDNS2} ${SERV} -p ${PIDFILE} -f -c ${CONFIG} ${DEBUG} & PID=$!
wait_server $PID

echo "Testing that ocserv doesn't assign IPv6 address on (ancient) OpenConnect v3 clients... "

echo -n "Connecting to setup interface... "
echo "test" | ${CMDNS1} timeout 15s $OPENCONNECT -v $ADDRESS:$PORT --useragent="Open AnyConnect VPN Agent v3" --passwd-on-stdin -u test --servercert=pin-sha256:xp3scfzy3rOQsv9NcOve/8YVVv+pHr4qNCXEXrNl5s8= -s /bin/true >${TMPFILE} 2>&1

echo ok

cat ${TMPFILE}|grep X-CSTP-Split-Include|grep 'fd63:' >/dev/null
if test $? = 0;then
	cat ${TMPFILE}|grep X-CSTP-Split
	echo "Found IPv6 route that shouldn't be there"
	exit 1
fi

echo "Testing that ocserv DOES assign IPv6 address on totally unknown clients... "

echo -n "Connecting to setup interface... "
echo "test" | ${CMDNS1} timeout 15s $OPENCONNECT -v $ADDRESS:$PORT --useragent="/* An unknown user agent */" --passwd-on-stdin -u test --servercert=pin-sha256:xp3scfzy3rOQsv9NcOve/8YVVv+pHr4qNCXEXrNl5s8= -s /bin/true >${TMPFILE} 2>&1

cat ${TMPFILE}|grep X-CSTP-Split-Include|grep 'fd63:' >/dev/null
if test $? != 0;then
	cat ${TMPFILE}|grep X-CSTP-Split
	echo "Did not find IPv6 which SHOULD be there"
	exit 1
fi

kill $PID
wait

exit 0