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			133 lines
		
	
	
		
			3.5 KiB
		
	
	
	
		
			Bash
		
	
			
		
		
	
	
			133 lines
		
	
	
		
			3.5 KiB
		
	
	
	
		
			Bash
		
	
#!/usr/bin/env bash
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# group: rw quick
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#
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# Test vmdk backing file correlation
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#
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# Copyright (C) 2018 Red Hat, Inc.
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will 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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#
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# creator
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owner=hreitz@redhat.com
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seq=$(basename $0)
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echo "QA output created by $seq"
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status=1	# failure is the default!
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_cleanup()
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{
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    _cleanup_test_img
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    _rm_test_img "$TEST_IMG.not_base"
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}
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trap "_cleanup; exit \$status" 0 1 2 3 15
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# get standard environment, filters and checks
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. ./common.rc
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. ./common.filter
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. ./common.qemu
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# This tests vmdk-specific low-level functionality
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_supported_fmt vmdk
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_supported_proto file
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_supported_os Linux
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_unsupported_imgopts "subformat=monolithicFlat" \
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                     "subformat=twoGbMaxExtentFlat" \
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                     "subformat=twoGbMaxExtentSparse"
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TEST_IMG="$TEST_IMG.base" _make_test_img 1M
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TEST_IMG="$TEST_IMG.not_base" _make_test_img 1M
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_make_test_img -b "$TEST_IMG.base" -F $IMGFMT
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make_opts()
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{
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    node_name=$1
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    filename=$2
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    backing=$3
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    if [ -z "$backing" ]; then
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        backing="null"
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    else
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        backing="'$backing'"
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    fi
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    echo "{ 'node-name': '$node_name',
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            'driver': 'vmdk',
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            'file': {
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                'driver': 'file',
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                'filename': '$filename'
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            },
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            'backing': $backing }"
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}
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overlay_opts=$(make_opts overlay "$TEST_IMG" backing)
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base_opts=$(make_opts backing "$TEST_IMG.base")
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not_base_opts=$(make_opts backing "$TEST_IMG.not_base")
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not_vmdk_opts="{ 'node-name': 'backing', 'driver': 'null-co' }"
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echo
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echo '=== Testing fitting VMDK backing image ==='
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echo
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qemu_comm_method=monitor \
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    _launch_qemu -blockdev "$base_opts" -blockdev "$overlay_opts"
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# Should not return an error
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_send_qemu_cmd $QEMU_HANDLE 'qemu-io overlay "read 0 512"' 'ops'
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_cleanup_qemu
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echo
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echo '=== Testing unrelated VMDK backing image ==='
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echo
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qemu_comm_method=monitor \
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    _launch_qemu -blockdev "$not_base_opts" -blockdev "$overlay_opts"
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# Should fail (gracefully)
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_send_qemu_cmd $QEMU_HANDLE 'qemu-io overlay "read 0 512"' 'failed'
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_cleanup_qemu
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echo
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echo '=== Testing non-VMDK backing image ==='
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echo
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# FIXME: This is the reason why we have to use two -blockdev
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# invocations.  You can only fully override the backing file options
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# if you either specify a node reference (as done here) or the new
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# options contain file.filename (which in this case they do not).
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# In other cases, file.filename will be set to whatever the image
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# header of the overlay contains (which we do not want).  I consider
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# this a FIXME because with -blockdev, you cannot specify "partial"
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# options, so setting file.filename but leaving the rest as specified
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# by the user does not make sense.
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qemu_comm_method=monitor \
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    _launch_qemu -blockdev "$not_vmdk_opts" -blockdev "$overlay_opts"
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# Should fail (gracefully)
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_send_qemu_cmd $QEMU_HANDLE 'qemu-io overlay "read 0 512"' 'failed'
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_cleanup_qemu
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# success, all done
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echo "*** done"
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rm -f $seq.full
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status=0
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