qemu/tests/qemu-iotests/233
Daniel P. Berrangé 3da93d4bc6 tests/qemu-iotests: validate NBD TLS with hostname mismatch
This validates that connections to an NBD server where the certificate
hostname does not match will fail. It further validates that using the
new 'tls-hostname' override option can solve the failure.

Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20220304193610.3293146-11-berrange@redhat.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
2022-03-07 17:12:55 -06:00

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#!/usr/bin/env bash
# group: quick
#
# Test NBD TLS certificate / authorization integration
#
# Copyright (C) 2018-2019 Red Hat, 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, see <http://www.gnu.org/licenses/>.
#
# creator
owner=berrange@redhat.com
seq=$(basename $0)
echo "QA output created by $seq"
status=1 # failure is the default!
_cleanup()
{
nbd_server_stop
_cleanup_test_img
# If we aborted early we want to see this log for diagnosis
test -f "$TEST_DIR/server.log" && cat "$TEST_DIR/server.log"
rm -f "$TEST_DIR/server.log"
tls_x509_cleanup
}
trap "_cleanup; exit \$status" 0 1 2 3 15
# get standard environment, filters and checks
. ./common.rc
. ./common.filter
. ./common.pattern
. ./common.tls
. ./common.nbd
_supported_fmt raw qcow2
_supported_proto file
# If porting to non-Linux, consider using socat instead of ss in common.nbd
_require_command QEMU_NBD
tls_x509_init
echo
echo "== preparing TLS creds =="
tls_x509_create_root_ca "ca1"
tls_x509_create_root_ca "ca2"
tls_x509_create_server "ca1" "server1"
tls_x509_create_client "ca1" "client1"
tls_x509_create_client "ca2" "client2"
tls_x509_create_client "ca1" "client3"
echo
echo "== preparing image =="
_make_test_img 64M
$QEMU_IO -c 'w -P 0x11 1m 1m' "$TEST_IMG" 2>&1 | _filter_qemu_io
echo
echo "== check TLS client to plain server fails =="
nbd_server_start_tcp_socket -f $IMGFMT "$TEST_IMG" 2> "$TEST_DIR/server.log"
obj=tls-creds-x509,dir=${tls_dir}/client1,endpoint=client,id=tls0
$QEMU_IMG info --image-opts --object $obj \
driver=nbd,host=$nbd_tcp_addr,port=$nbd_tcp_port,tls-creds=tls0 \
2>&1 | _filter_nbd
$QEMU_NBD_PROG -L -b $nbd_tcp_addr -p $nbd_tcp_port --object $obj \
--tls-creds=tls0 2>&1 | _filter_qemu_nbd_exports
nbd_server_stop
echo
echo "== check plain client to TLS server fails =="
nbd_server_start_tcp_socket \
--object tls-creds-x509,dir=${tls_dir}/server1,endpoint=server,id=tls0,verify-peer=on \
--tls-creds tls0 \
-f $IMGFMT "$TEST_IMG" 2>> "$TEST_DIR/server.log"
$QEMU_IMG info nbd://localhost:$nbd_tcp_port \
2>&1 | _filter_nbd
$QEMU_NBD_PROG -L -b $nbd_tcp_addr -p $nbd_tcp_port \
2>&1 | _filter_qemu_nbd_exports
echo
echo "== check TLS works =="
obj1=tls-creds-x509,dir=${tls_dir}/client1,endpoint=client,id=tls0
obj2=tls-creds-x509,dir=${tls_dir}/client3,endpoint=client,id=tls0
$QEMU_IMG info --image-opts --object $obj1 \
driver=nbd,host=$nbd_tcp_addr,port=$nbd_tcp_port,tls-creds=tls0 \
2>&1 | _filter_nbd
$QEMU_IMG info --image-opts --object $obj2 \
driver=nbd,host=$nbd_tcp_addr,port=$nbd_tcp_port,tls-creds=tls0 \
2>&1 | _filter_nbd
$QEMU_NBD_PROG -L -b $nbd_tcp_addr -p $nbd_tcp_port --object $obj1 \
--tls-creds=tls0 2>&1 | _filter_qemu_nbd_exports
echo
echo "== check TLS fail over TCP with mismatched hostname =="
obj1=tls-creds-x509,dir=${tls_dir}/client1,endpoint=client,id=tls0
$QEMU_IMG info --image-opts --object $obj1 \
driver=nbd,host=localhost,port=$nbd_tcp_port,tls-creds=tls0 \
2>&1 | _filter_nbd
$QEMU_NBD_PROG -L -b localhost -p $nbd_tcp_port --object $obj1 \
--tls-creds=tls0 | _filter_qemu_nbd_exports
echo
echo "== check TLS works over TCP with mismatched hostname and override =="
obj1=tls-creds-x509,dir=${tls_dir}/client1,endpoint=client,id=tls0
$QEMU_IMG info --image-opts --object $obj1 \
driver=nbd,host=localhost,port=$nbd_tcp_port,tls-creds=tls0,tls-hostname=127.0.0.1 \
2>&1 | _filter_nbd
$QEMU_NBD_PROG -L -b localhost -p $nbd_tcp_port --object $obj1 \
--tls-creds=tls0 --tls-hostname=127.0.0.1 | _filter_qemu_nbd_exports
echo
echo "== check TLS with different CA fails =="
obj=tls-creds-x509,dir=${tls_dir}/client2,endpoint=client,id=tls0
$QEMU_IMG info --image-opts --object $obj \
driver=nbd,host=$nbd_tcp_addr,port=$nbd_tcp_port,tls-creds=tls0 \
2>&1 | _filter_nbd
$QEMU_NBD_PROG -L -b $nbd_tcp_addr -p $nbd_tcp_port --object $obj \
--tls-creds=tls0 2>&1 | _filter_qemu_nbd_exports
echo
echo "== perform I/O over TLS =="
QEMU_IO_OPTIONS=$QEMU_IO_OPTIONS_NO_FMT
$QEMU_IO -c 'r -P 0x11 1m 1m' -c 'w -P 0x22 1m 1m' --image-opts \
--object tls-creds-x509,dir=${tls_dir}/client1,endpoint=client,id=tls0 \
driver=nbd,host=$nbd_tcp_addr,port=$nbd_tcp_port,tls-creds=tls0 \
2>&1 | _filter_qemu_io
$QEMU_IO -f $IMGFMT -r -U -c 'r -P 0x22 1m 1m' "$TEST_IMG" \
2>&1 | _filter_qemu_io
echo
echo "== check TLS with authorization =="
nbd_server_stop
nbd_server_start_tcp_socket \
--object tls-creds-x509,dir=${tls_dir}/server1,endpoint=server,id=tls0,verify-peer=on \
--object "authz-simple,id=authz0,identity=CN=localhost,, \
O=Cthulu Dark Lord Enterprises client1,,L=R'lyeh,,C=South Pacific" \
--tls-authz authz0 \
--tls-creds tls0 \
-f $IMGFMT "$TEST_IMG" 2>> "$TEST_DIR/server.log"
$QEMU_IMG info --image-opts \
--object tls-creds-x509,dir=${tls_dir}/client1,endpoint=client,id=tls0 \
driver=nbd,host=$nbd_tcp_addr,port=$nbd_tcp_port,tls-creds=tls0 \
2>&1 | _filter_nbd
$QEMU_IMG info --image-opts \
--object tls-creds-x509,dir=${tls_dir}/client3,endpoint=client,id=tls0 \
driver=nbd,host=$nbd_tcp_addr,port=$nbd_tcp_port,tls-creds=tls0 \
2>&1 | _filter_nbd
echo
echo "== final server log =="
cat "$TEST_DIR/server.log" | _filter_authz_check_tls
rm -f "$TEST_DIR/server.log"
# success, all done
echo "*** done"
rm -f $seq.full
status=0