tests: exercise NBD server in TLS mode (afcd1c2f) · Commits · SUMMER2020 / students / proj-2021291

tests/qemu-iotests/233

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		#!/bin/bash
		#
		# Test NBD TLS certificate / authorization integration
		#
		# Copyright (C) 2018 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
		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
		_supported_os Linux
		_require_command QEMU_NBD

		nbd_server_set_tcp_port
		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"

		echo
		echo "== preparing image =="
		_make_test_img 64M


		echo
		echo "== check TLS client to plain server fails =="
		nbd_server_start_tcp_socket "$TEST_IMG"

		$QEMU_IMG info --image-opts \
		--object tls-creds-x509,dir=${tls_dir}/client1,endpoint=client,id=tls0 \
		driver=nbd,host=$nbd_tcp_addr,port=$nbd_tcp_port,tls-creds=tls0 \
		2>&1 \| sed "s/$nbd_tcp_port/PORT/g"

		nbd_server_stop

		echo
		echo "== check plain client to TLS server fails =="

		nbd_server_start_tcp_socket --object tls-creds-x509,dir=${tls_dir}/server1,endpoint=server,id=tls0,verify-peer=yes --tls-creds tls0 "$TEST_IMG"

		$QEMU_IMG info nbd://localhost:$nbd_tcp_port 2>&1 \| sed "s/$nbd_tcp_port/PORT/g"

		echo
		echo "== check TLS works =="
		$QEMU_IMG info --image-opts \
		--object tls-creds-x509,dir=${tls_dir}/client1,endpoint=client,id=tls0 \
		driver=nbd,host=$nbd_tcp_addr,port=$nbd_tcp_port,tls-creds=tls0 \
		2>&1 \| sed "s/$nbd_tcp_port/PORT/g"

		echo
		echo "== check TLS with different CA fails =="
		$QEMU_IMG info --image-opts \
		--object tls-creds-x509,dir=${tls_dir}/client2,endpoint=client,id=tls0 \
		driver=nbd,host=$nbd_tcp_addr,port=$nbd_tcp_port,tls-creds=tls0 \
		2>&1 \| sed "s/$nbd_tcp_port/PORT/g"

		# success, all done
		echo "*** done"
		rm -f $seq.full
		status=0

tests/qemu-iotests/233.out

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		QA output created by 233

		== preparing TLS creds ==
		Generating a self signed certificate...
		Generating a self signed certificate...
		Generating a signed certificate...
		Generating a signed certificate...
		Generating a signed certificate...

		== preparing image ==
		Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=67108864

		== check TLS client to plain server fails ==
		qemu-img: Could not open 'driver=nbd,host=127.0.0.1,port=PORT,tls-creds=tls0': Denied by server for option 5 (starttls)
		server reported: TLS not configured

		== check plain client to TLS server fails ==
		qemu-img: Could not open 'nbd://localhost:PORT': TLS negotiation required before option 8 (structured reply)
		server reported: Option 0x8 not permitted before TLS

		== check TLS works ==
		image: nbd://127.0.0.1:PORT
		file format: nbd
		virtual size: 64M (67108864 bytes)
		disk size: unavailable

		== check TLS with different CA fails ==
		option negotiation failed: Verify failed: No certificate was found.
		qemu-img: Could not open 'driver=nbd,host=127.0.0.1,port=PORT,tls-creds=tls0': The certificate hasn't got a known issuer
		*** done

tests/qemu-iotests/common.nbd

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		@@ -20,6 +20,7 @@
		#

		nbd_unix_socket="${TEST_DIR}/qemu-nbd.sock"
		nbd_tcp_addr="127.0.0.1"
		nbd_pid_file="${TEST_DIR}/qemu-nbd.pid"

		function nbd_server_stop()
		@@ -62,3 +63,47 @@ function nbd_server_start_unix_socket()
		$QEMU_NBD -v -t -k "$nbd_unix_socket" "$@" &
		nbd_server_wait_for_unix_socket $!
		}

		function nbd_server_set_tcp_port()
		{
		(ss --help) >/dev/null 2>&1 \|\| _notrun "ss utility not found, skipping test"

		for ((port = 10809; port <= 10909; port++))
		do
		if ! ss -tln \| grep -sqE ":$port\b"; then
		nbd_tcp_port=$port
		return
		fi
		done

		echo "Cannot find free TCP port for nbd in range 10809-10909"
		exit 1
		}

		function nbd_server_wait_for_tcp_socket()
		{
		pid=$1

		for ((i = 0; i < 300; i++))
		do
		if ss -tln \| grep -sqE ":$nbd_tcp_port\b"; then
		return
		fi
		kill -s 0 $pid 2>/dev/null
		if test $? != 0
		then
		echo "qemu-nbd unexpectedly quit"
		exit 1
		fi
		sleep 0.1
		done
		echo "Failed in check of TCP socket created by qemu-nbd"
		exit 1
		}

		function nbd_server_start_tcp_socket()
		{
		nbd_server_stop
		$QEMU_NBD -v -t -b $nbd_tcp_addr -p $nbd_tcp_port "$@" &
		nbd_server_wait_for_tcp_socket $!
		}

tests/qemu-iotests/group

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		@@ -229,3 +229,4 @@
		229 auto quick
		231 auto quick
		232 auto quick
		233 auto quick