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2020-08-21qcow2.py: Introduce '-j' key to dump in JSON formatAndrey Shinkevich
Add the command key to the qcow2.py arguments list to dump QCOW2 metadata in JSON format. Here is the suggested way to do that. The implementation of the dump in JSON format is in the patch that follows. Signed-off-by: Andrey Shinkevich <andrey.shinkevich@virtuozzo.com> Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> Message-Id: <1596742557-320265-9-git-send-email-andrey.shinkevich@virtuozzo.com> Signed-off-by: Eric Blake <eblake@redhat.com>
2020-06-17iotests: Add copyright line in qcow2.pyEric Blake
The file qcow2.py was originally contributed in 2012 by Kevin Wolf, but was not given traditional boilerplate headers at the time. The missing license was just rectified (commit 16306a7b39) using the project-default GPLv2+, but as Vladimir is not at Red Hat, he did not add a Copyright line. All earlier contributions have come from CC'd authors, where all but Stefan used a Red Hat address at the time of the contribution, and that copyright carries over to the split to qcow2_format.py (d5262c7124). CC: Kevin Wolf <kwolf@redhat.com> CC: Stefan Hajnoczi <stefanha@redhat.com> CC: Eduardo Habkost <ehabkost@redhat.com> CC: Max Reitz <mreitz@redhat.com> CC: Philippe Mathieu-Daudé <philmd@redhat.com> CC: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Eric Blake <eblake@redhat.com> Message-Id: <20200609205944.3549240-1-eblake@redhat.com> Acked-by: Stefan Hajnoczi <stefanha@redhat.com> Acked-by: Philippe Mathieu-Daudé <philmd@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2020-06-09qcow2_format.py: drop new line printing at end of dump()Vladimir Sementsov-Ogievskiy
This will simplify further conversion. To compensate, print this empty line directly in cmd_dump_header(). Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> Reviewed-by: Andrey Shinkevich <andrey.shinkevich@virtuozzo.com> Message-Id: <20200606081806.23897-5-vsementsov@virtuozzo.com> Signed-off-by: Eric Blake <eblake@redhat.com>
2020-06-09qcow2.py: move qcow2 format classes to separate moduleVladimir Sementsov-Ogievskiy
We are going to enhance qcow2 format parsing by adding more structure classes. Let's split format parsing from utility code. Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> Message-Id: <20200606081806.23897-4-vsementsov@virtuozzo.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Eric Blake <eblake@redhat.com>
2020-06-09qcow2.py: add licensing blurbVladimir Sementsov-Ogievskiy
Add classic heading, which is missing here. Keep copyright place empty, prior authors may add a line later. Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> Message-Id: <20200606081806.23897-3-vsementsov@virtuozzo.com> Reviewed-by: Eric Blake <eblake@redhat.com> [eblake: tweak commit message] Signed-off-by: Eric Blake <eblake@redhat.com>
2020-06-09qcow2.py: python style fixesVladimir Sementsov-Ogievskiy
Fix flake8 complaints. Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> Message-Id: <20200606081806.23897-2-vsementsov@virtuozzo.com> Tested-by: Eric Blake <eblake@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> [eblake: commit message improved] Signed-off-by: Eric Blake <eblake@redhat.com>
2020-02-07drop "from __future__ import print_function"Paolo Bonzini
This is only needed for Python 2, which we do not support anymore. Cc: Philippe Mathieu-Daudé <philmd@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Acked-by: Alex Bennée <alex.bennee@linaro.org> Acked-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20200204160604.19883-1-pbonzini@redhat.com> Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
2020-02-07tests/qemu-iotests: Explicit usage of Python 3 (scripts with __main__)Philippe Mathieu-Daudé
Use the program search path to find the Python 3 interpreter. Patch created mechanically by running: $ sed -i "s,^#\!/usr/bin/\(env\ \)\?python$,#\!/usr/bin/env python3," \ $(git grep -l 'if __name__.*__main__') Reported-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> Suggested-by: Daniel P. Berrangé <berrange@redhat.com> Suggested-by: Stefan Hajnoczi <stefanha@redhat.com> Acked-by: Stefan Hajnoczi <stefanha@redhat.com> Acked-by: Paolo Bonzini <pbonzini@redhat.com> Message-Id: <20200130163232.10446-4-philmd@redhat.com> Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
2020-01-06iotests/qcow2.py: Split feature fields into bitsMax Reitz
Print the feature fields as a set of bits so that filtering is easier. Signed-off-by: Max Reitz <mreitz@redhat.com> Reviewed-by: Maxim Levitsky <mlevitsk@redhat.com> Message-id: 20191107163708.833192-4-mreitz@redhat.com Signed-off-by: Max Reitz <mreitz@redhat.com>
2020-01-06iotests/qcow2.py: Add dump-header-extsMax Reitz
This is useful for tests that want to whitelist fields from dump-header (with grep) but still print all header extensions. Signed-off-by: Max Reitz <mreitz@redhat.com> Reviewed-by: Maxim Levitsky <mlevitsk@redhat.com> Message-id: 20191107163708.833192-3-mreitz@redhat.com Signed-off-by: Max Reitz <mreitz@redhat.com>
2018-10-30iotests: Use Python byte strings where appropriateMax Reitz
Since byte strings are no longer the default in Python 3, we have to explicitly use them where we need to, which is mostly when working with structures. It also means that we need to open a file in binary mode when we want to use structures. On the other hand, we have to accomodate for the fact that some functions (still) work with byte strings but we want to use unicode strings (in Python 3 at least, and it does not matter in Python 2). This includes base64 encoding, but it is most notable when working with the subprocess module: Either we set universal_newlines to True so that the default streams are opened in text mode (hence this parameter is aliased as "text" as of 3.7), or, if that is not possible, we have to decode the output to a normal string. Signed-off-by: Max Reitz <mreitz@redhat.com> Reviewed-by: Eduardo Habkost <ehabkost@redhat.com> Message-Id: <20181022135307.14398-4-mreitz@redhat.com> Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2018-06-08python: futurize -f libfuturize.fixes.fix_print_with_importEduardo Habkost
Change all Python code to use print as a function. This is necessary for Python 3 compatibility. Done using: $ py=$( (g grep -l -E '^#!.*python';find -name '*.py' -printf '%P\n';) | \ sort -u | grep -v README.sh4) $ futurize -w -f libfuturize.fixes.fix_print_with_import $py Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Acked-by: Fam Zheng <famz@redhat.com> Signed-off-by: Eduardo Habkost <ehabkost@redhat.com> Message-Id: <20180608122952.2009-2-ehabkost@redhat.com> [ehabkost: fixup tests/docker/docker.py] Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2014-12-10qcow2.py: Add required padding for header extensionsKevin Wolf
The qcow2 specification requires that the header extension data be padded to round up the extension size to the next multiple of 8 bytes. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Max Reitz <mreitz@redhat.com> Message-id: 1416935562-7760-3-git-send-email-kwolf@redhat.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2014-07-18qcow2: Fix error path for unknown incompatible featuresKevin Wolf
qcow2's report_unsupported_feature() had two bugs: A 32 bit truncation would prevent feature table entries for bits 32-63 from being used, and it could assign errp multiple times if there was more than one unknown feature, resulting in an error_set() assertion failure. Fix the truncation, make sure to set the error exactly once and add a qemu-iotests case for it. This fixes https://bugs.launchpad.net/qemu/+bug/1342704/ Reported-by: Maria Kustova <maria.k@catit.be> Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-05-24qcow2.py: Subcommand for changing header fieldsKevin Wolf
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2012-11-14qemu-iotests: qcow2: Test growing large refcount tableKevin Wolf
Actually writing all the content with 512 byte sector size would take forever, therefore build the image file with a Python script and use qemu-io for the last write that actually triggers the refcount table growth. Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2012-06-15qemu-iotests: add qcow2.py set-feature-bit commandStefan Hajnoczi
This new command sets feature bits in the image file header: qcow2.py set-feature-bit incompatible|compatible|autoclear <bit> The bit number must be in the range [0, 64). Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2012-04-20qemu-iotests: Fix test 031 for qcow2 v3 supportKevin Wolf
qcow2.py must be updated to work with version 3 images at all, the output has changed since the feature table extension has been added, and version 2 and version 3 images can't possibly have the same test output. Change the test case to completely ignore IMGOPTS and run the test for both compat=1.1 and compat=0.10 regardless of the ./check command line. Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2012-04-05qemu-iotests: qcow2.pyKevin Wolf
This adds a tool that is meant to inspect and edit qcow2 files in a low-level way, that wouldn't be possible with qemu-img/io, for example by adding yet unknown extensions or flags. This way we can test whether qemu deals properly with future backwards compatible extensions. For now, let's start with the image header and header extensions. Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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