Re: [Qemu-devel] [PATCH v7 3/3] block: enable testing of LUKS driver with block I/O tests

[Max Reitz]

On 30.03.2016 15:53, Daniel P. Berrange wrote:
> This adds support for testing the LUKS driver with the block
> I/O test framework.
> 
>    cd tests/qemu-io-tests
>    ./check -luks
> 
> A handful of test cases are modified to work with luks
> 
>  - 004 - whitelist luks format
>  - 012 - use TEST_IMG_FILE instead of TEST_IMG for file ops
>  - 048 - use TEST_IMG_FILE instead of TEST_IMG for file ops.

Well, that doesn't always work now that you kept TEST_IMG_FILE unset for
file-protocol tests.

(Both fail because some command in them cannot find the file ''.)

>          don't assume extended image contents is all zeros,
>          explicitly initialize with zeros
>          Make file size smaller to avoid having to decrypt
>          1 GB of data.
>  - 052 - don't assume initial image contents is all zeros,
>          explicitly initialize with zeros
>  - 100 - don't assume initial image contents is all zeros,
>          explicitly initialize with zeros
> 
> With this patch applied, the results are as follows:
> 
>   Passed: 001 002 003 004 005 008 009 010 011 012 021 032 043
>           047 048 049 052 087 100 134 143
>   Failed: 033 120 140 145
>  Skipped: 007 013 014 015 017 018 019 020 022 023 024 025 026
>           027 028 029 030 031 034 035 036 037 038 039 040 041
>           042 043 044 045 046 047 049 050 051 053 054 055 056
>           057 058 059 060 061 062 063 064 065 066 067 068 069
>           070 071 072 073 074 075 076 077 078 079 080 081 082
>           083 084 085 086 087 088 089 090 091 092 093 094 095
>           096 097 098 099 101 102 103 104 105 107 108 109 110
>           111 112 113 114 115 116 117 118 119 121 122 123 124
>           128 129 130 131 132 133 134 135 136 137 138 139 141
>           142 144 146 148
> 
> The reasons for the failed tests are:
> 
>  - 033 - needs adapting to use image opts syntax with blkdebug
>          and test image in order to correctly set align property
>  - 120 - needs adapting to use correct -drive syntax for luks
>  - 140 - needs adapting to use correct -drive syntax for luks
>  - 145 - needs adapting to use correct -drive syntax for luks
> 
> The vast majority of skipped tests are exercising code that is
> qcow2 specific, though a couple could probably be usefully
> enabled for luks too.
> 
> Signed-off-by: Daniel P. Berrange <address@hidden>
> ---
>  tests/qemu-iotests/004       |  2 +-
>  tests/qemu-iotests/012       |  2 +-
>  tests/qemu-iotests/048       | 22 +++++++++++++++-------
>  tests/qemu-iotests/048.out   |  6 ++++--
>  tests/qemu-iotests/052       |  4 ++++
>  tests/qemu-iotests/052.out   |  4 ++++
>  tests/qemu-iotests/100       |  7 +++++++
>  tests/qemu-iotests/100.out   | 14 ++++++++++++++
>  tests/qemu-iotests/common    |  7 +++++++
>  tests/qemu-iotests/common.rc |  3 +++
>  10 files changed, 60 insertions(+), 11 deletions(-)
> 

[...]

> diff --git a/tests/qemu-iotests/048 b/tests/qemu-iotests/048
> index e1eeac2..0e58364 100755
> --- a/tests/qemu-iotests/048
> +++ b/tests/qemu-iotests/048

[...]

> @@ -46,25 +46,33 @@ _compare()
>  . ./common.filter
>  . ./common.pattern
>  
> -_supported_fmt raw qcow qcow2 qed
> +_supported_fmt raw qcow qcow2 qed luks
>  _supported_proto file
>  _supported_os Linux
>  
>  # Setup test basic parameters
>  TEST_IMG2=$TEST_IMG.2
> +TEST_IMG_FILE2=$TEST_IMG_FILE.2
>  CLUSTER_SIZE=4096
> -size=1024M
> +size=128M
>  
>  _make_test_img $size
>  io_pattern write 524288 $CLUSTER_SIZE $CLUSTER_SIZE 4 45
>  
>  # Compare identical images
> -cp "$TEST_IMG" "${TEST_IMG2}"
> +cp "$TEST_IMG_FILE" "${TEST_IMG_FILE2}"
>  _compare
>  _compare -q
>  
>  # Compare images with different size
> -$QEMU_IMG resize -f $IMGFMT "$TEST_IMG" +512M
> +if [ "$IMGOPTSSYNTAX" = "true" ]; then
> +    $QEMU_IMG resize $QEMU_IMG_EXTRA_ARGS "$TEST_IMG" +32M
> +else
> +    $QEMU_IMG resize -f $IMGFMT "$TEST_IMG" +32M

If you don't decide to pass QEMU_IMG_EXTRA_ARGS in the
_qemu_img_wrapper, maybe you could set it to "-f $IMGFMT" if
$IMGOPTSSYNTAX is false.

(Keeping this as it is won't stop me from giving an R-b, though.)

Max

> +fi
> +# Ensure extended space is zero-initialized
> +$QEMU_IO "$TEST_IMG" -c "write -P 0 $size 32M" | _filter_qemu_io
> +
>  _compare
>  _compare -s
>

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