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* iotests: define group in each iotestVladimir Sementsov-Ogievskiy2021-01-201-0/+1
| | | | | | | | | | | | | | | | | | | | | We are going to drop group file. Define group in tests as a preparatory step. The patch is generated by cd tests/qemu-iotests grep '^[0-9]\{3\} ' group | while read line; do file=$(awk '{print $1}' <<< "$line"); groups=$(sed -e 's/^... //' <<< "$line"); awk "NR==2{print \"# group: $groups\"}1" $file > tmp; cat tmp > $file; done Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-Id: <20210116134424.82867-7-vsementsov@virtuozzo.com> Signed-off-by: Eric Blake <eblake@redhat.com>
* iotests: Enable fuse for many testsMax Reitz2020-12-111-1/+1
| | | | | | | | | | | | | | | | Many tests (that do not support generic protocols) can run just fine with FUSE-exported images, so allow them to. Note that this is no attempt at being definitely complete. There are some tests that might be modified to run on FUSE, but this patch still skips them. This patch only tries to pick the rather low-hanging fruits. Note that 221 and 250 only pass when .lseek is correctly implemented, which is only possible with a libfuse that is 3.8 or newer. Signed-off-by: Max Reitz <mreitz@redhat.com> Reviewed-by: Kevin Wolf <kwolf@redhat.com> Message-Id: <20201027190600.192171-20-mreitz@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
* iotests/046: Avoid renaming imagesMax Reitz2020-12-111-2/+3
| | | | | | | | | | | This generally does not work on non-file protocols. It is better to create the image with the final name from the start, and most tests do this already. Let 046 follow suit. Signed-off-by: Max Reitz <mreitz@redhat.com> Reviewed-by: Kevin Wolf <kwolf@redhat.com> Message-Id: <20201027190600.192171-11-mreitz@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
* iotests: Specify explicit backing format where sensibleEric Blake2020-07-141-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There are many existing qcow2 images that specify a backing file but no format. This has been the source of CVEs in the past, but has become more prominent of a problem now that libvirt has switched to -blockdev. With older -drive, at least the probing was always done by qemu (so the only risk of a changed format between successive boots of a guest was if qemu was upgraded and probed differently). But with newer -blockdev, libvirt must specify a format; if libvirt guesses raw where the image was formatted, this results in data corruption visible to the guest; conversely, if libvirt guesses qcow2 where qemu was using raw, this can result in potential security holes, so modern libvirt instead refuses to use images without explicit backing format. The change in libvirt to reject images without explicit backing format has pointed out that a number of tools have been far too reliant on probing in the past. It's time to set a better example in our own iotests of properly setting this parameter. iotest calls to create, rebase, and convert are all impacted to some degree. It's a bit annoying that we are inconsistent on command line - while all of those accept -o backing_file=...,backing_fmt=..., the shortcuts are different: create and rebase have -b and -F, while convert has -B but no -F. (amend has no shortcuts, but the previous patch just deprecated the use of amend to change backing chains). Signed-off-by: Eric Blake <eblake@redhat.com> Message-Id: <20200706203954.341758-9-eblake@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
* qcow2: Forbid discard in qcow2 v2 images with backing filesAlberto Garcia2020-04-071-4/+6
| | | | | | | | | | | | | | | | | | | | | | | | | A discard request deallocates the selected clusters so they read back as zeroes. This is done by clearing the cluster offset field and setting QCOW_OFLAG_ZERO in the L2 entry. This flag is however only supported when qcow_version >= 3. In older images the cluster is simply deallocated, exposing any possible stale data from the backing file. Since discard is an advisory operation it's safer to simply forbid it in this scenario. Note that we are adding this check to qcow2_co_pdiscard() and not to qcow2_cluster_discard() or discard_in_l2_slice() because the last two are also used by qcow2_snapshot_create() to discard the clusters used by the VM state. In this case there's no risk of exposing stale data to the guest and we really want that the clusters are always discarded. Signed-off-by: Alberto Garcia <berto@igalia.com> Message-Id: <20200331114345.29993-1-berto@igalia.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Max Reitz <mreitz@redhat.com>
* iotests: Disable data_file where it cannot be usedMax Reitz2020-01-061-0/+2
| | | | | | | Signed-off-by: Max Reitz <mreitz@redhat.com> Message-id: 20191107163708.833192-22-mreitz@redhat.com [mreitz: Also disable 273] Signed-off-by: Max Reitz <mreitz@redhat.com>
* tests/qemu-iotests: Don't use 'seq' in the iotestsThomas Huth2019-07-231-1/+1
| | | | | | | | | | | | | The 'seq' command is not available by default on OpenBSD, so these iotests are currently failing there. It could be installed as 'gseq' from the coreutils package - but since it is using a different name there and we are running the iotests with the "bash" shell anyway, let's simply use the built-in double parentheses for the for-loops instead. Signed-off-by: Thomas Huth <thuth@redhat.com> Message-Id: <20190723111201.1926-1-thuth@redhat.com> Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
* tests/qemu-iotests: Remove the "_supported_os Linux" line from many testsThomas Huth2019-05-211-1/+0Star
| | | | | | | | | | | | | A lot of tests run fine on FreeBSD and macOS, too - the limitation to Linux here was likely just copied-and-pasted from other tests. Thus remove the "_supported_os Linux" line from tests that run successful in our CI pipelines on FreeBSD and macOS. Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Tested-by: Alex Bennée <alex.bennee@linaro.org> Acked-by: Christian Borntraeger <borntraeger@de.ibm.com> Message-Id: <20190502084506.8009-6-thuth@redhat.com> Signed-off-by: Thomas Huth <thuth@redhat.com>
* qemu-iotests: Improve portability by searching bash in the $PATHPhilippe Mathieu-Daudé2019-03-081-1/+1
| | | | | | | | | | | | | | | | | Bash is not always installed as /bin/bash. In particular on OpenBSD, the package installs it in /usr/local/bin. Use the 'env' shebang to search bash in the $PATH. Patch created mechanically by running: $ git grep -lE '#! ?/bin/bash' -- tests/qemu-iotests \ | while read f; do \ sed -i 's|^#!.\?/bin/bash$|#!/usr/bin/env bash|' $f; \ done Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
* iotests: Drop use of bash keyword 'function'Eric Blake2018-11-191-3/+3
| | | | | | | | | | | | | | | | Bash allows functions to be declared with or without the leading keyword 'function'; but including the keyword does not comply with POSIX syntax, and is confusing to ksh users where the use of the keyword changes the scoping rules for functions. Stick to the POSIX form through iotests. Done mechanically with: sed -i 's/^function //' $(git ls-files tests/qemu-iotests) Signed-off-by: Eric Blake <eblake@redhat.com> Message-Id: <20181116215002.2124581-1-eblake@redhat.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
* qemu-iotests: remove unused variable 'here'Mao Zhongyi2018-11-191-1/+0Star
| | | | | | | | | | | | | | | | | | | | | | Running git grep '\$here' tests/qemu-iotests has 0 hits, which means we are setting a variable that has no use. It appears that commit e8f8624d removed the last use. So execute the following cmd to remove all of the 'here=...' lines as dead code. sed -i '/^here=/d' $(git grep -l '^here=' tests/qemu-iotests) Cc: kwolf@redhat.com Cc: mreitz@redhat.com Cc: eblake@redhat.com Suggested-by: Eric Blake <eblake@redhat.com> Signed-off-by: Mao Zhongyi <maozhongyi@cmss.chinamobile.com> Message-Id: <20181024094051.4470-3-maozhongyi@cmss.chinamobile.com> Reviewed-by: Eric Blake <eblake@redhat.com> [eblake: touch up commit message, reorder series, rebase to master] Signed-off-by: Eric Blake <eblake@redhat.com>
* iotests: 046: Prepare for image lockingFam Zheng2017-05-111-1/+1
| | | | | | | | The qemu-img info command is executed while VM is running, add -U option to avoid the image locking error. Signed-off-by: Fam Zheng <famz@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
* qemu-iotests: tests: do not set unused tmp variableSascha Silbe2016-04-151-1/+0Star
| | | | | | | | | | | | The previous commit removed the last usage of ${tmp} inside the tests themselves; the only remaining users are sourced by check. So we can now drop this variable from the tests. Signed-off-by: Sascha Silbe <silbe@linux.vnet.ibm.com> Reviewed-by: Bo Tu <tubo@linux.vnet.ibm.com> Message-id: 1460472980-26319-4-git-send-email-silbe@linux.vnet.ibm.com Reviewed-by: Max Reitz <mreitz@redhat.com> Signed-off-by: Max Reitz <mreitz@redhat.com>
* qcow2: Set zero flag for discarded clustersKevin Wolf2014-02-211-4/+14
| | | | | | | | Instead of making the backing file contents visible again after a discard request, set the zero flag if possible (i.e. on version >= 3). Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
* qemu-iotests: change _supported_proto to file for various testsPeter Lieven2014-02-091-1/+1
| | | | | | | | | | | | all these tests do anything of the following and thus fail with any protocol other than file: - the tests use rm, cp or mv shell commands which only work on file - the tests use qcow2.py - the images construct new filenames (e.g. backing file names) and the logic is broken for anything else than file Signed-off-by: Peter Lieven <pl@kamp.de> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
* qemu-iotests: Quote $TEST_IMG* and $TEST_DIR usageJeff Cody2013-09-271-5/+5
| | | | | | | | | A lot of image filename and paths are used unquoted. Quote these to make sure that directories / filenames with spaces are not problematic. Signed-off-by: Jeff Cody <jcody@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
* qemu-iotests: More concurrent allocation scenariosKevin Wolf2013-03-281-1/+48
| | | | | Signed-off-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
* qemu-iotests: Test concurrent cluster allocationsKevin Wolf2012-12-121-0/+215
This adds some first tests for qcow2's dependency handling when two parallel write requests access the same cluster. Signed-off-by: Kevin Wolf <kwolf@redhat.com>