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2021-01-20iotests: define group in each iotestVladimir Sementsov-Ogievskiy1-0/+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>
2020-12-11iotests: Enable fuse for many testsMax Reitz1-1/+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>
2020-07-14iotests: Specify explicit backing format where sensibleEric Blake1-2/+2
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>
2020-01-06iotests: Disable data_file where it cannot be usedMax Reitz1-2/+5
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>
2019-03-08qemu-iotests: Improve portability by searching bash in the $PATHPhilippe Mathieu-Daudé1-1/+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>
2018-11-19iotests: Drop use of bash keyword 'function'Eric Blake1-1/+1
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>
2018-11-19qemu-iotests: remove unused variable 'here'Mao Zhongyi1-1/+0
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>
2018-02-13block: maintain persistent disabled bitmapsVladimir Sementsov-Ogievskiy1-1/+1
To maintain load/store disabled bitmap there is new approach: - deprecate @autoload flag of block-dirty-bitmap-add, make it ignored - store enabled bitmaps as "auto" to qcow2 - store disabled bitmaps without "auto" flag to qcow2 - on qcow2 open load "auto" bitmaps as enabled and others as disabled (except in_use bitmaps) Also, adjust iotests 165 and 176 appropriately. Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> Message-id: 20180202160752.143796-1-vsementsov@virtuozzo.com Signed-off-by: Max Reitz <mreitz@redhat.com>
2018-01-23iotests: Disable some tests for compat=0.10Max Reitz1-0/+2
Tests 080, 130, 137, and 176 simply do not work with compat=0.10 for the reasons stated there. Signed-off-by: Max Reitz <mreitz@redhat.com> Message-Id: <20171123020832.8165-10-mreitz@redhat.com> [eblake: fix 177 in a separate commit] Signed-off-by: Eric Blake <eblake@redhat.com> Message-id: 20180117165420.15946-3-eblake@redhat.com Signed-off-by: Max Reitz <mreitz@redhat.com>
2017-11-21iotests: Fix 176 on 32-bit hostEric Blake1-1/+2
The contents of a qcow2 bitmap are rounded up to a size that matches the number of bits available for the granularity, but that granularity differs for 32-bit hosts (our default 64k cluster allows for 2M bitmap coverage per 'long') and 64-bit hosts (4M bitmap per 'long'). If the image is a multiple of 2M but not 4M, then the number of bytes occupied by the array of longs in memory differs between architecture, thus resulting in different SHA256 hashes. Furthermore (but untested by me), if our computation of the SHA256 hash is at all endian-dependent because of how we store data in memory, that's another variable we'd have to account for (ideally, we specified the bitmap stored in qcow2 as fixed-endian on disk, because the same qcow2 file must be usable across any architecture; but that says nothing about how we represent things in memory). But we already have test 165 to validate that bitmaps are stored correctly on disk, while this test is merely testing that the bitmap exists. So for this test, the easiest solution is to filter out the actual hash value. Broken in commit 4096974e. Reported-by: Max Reitz <mreitz@redhat.com> Signed-off-by: Eric Blake <eblake@redhat.com> Message-id: 20171117190422.23626-1-eblake@redhat.com Reviewed-by: John Snow <jsnow@redhat.com> Reviewed-by: Max Reitz <mreitz@redhat.com> Signed-off-by: Max Reitz <mreitz@redhat.com>
2017-11-17qcow2: fix image corruption on commit with persistent bitmapEric Blake1-7/+48
If an image contains persistent bitmaps, we cannot use the fast path of bdrv_make_empty() to clear the image during qemu-img commit, because that will lose the clusters related to the bitmaps. Also leave a comment in qcow2_read_extensions to remind future feature additions to think about fast-path removal, since we just barely fixed the same bug for LUKS encryption. It's a pain that qemu-img has not yet been taught to manipulate, or even at a very minimum display, information about persistent bitmaps; instead, we have to use QMP commands. It's also a pain that only qeury-block and x-debug-block-dirty-bitmap-sha256 will allow bitmap introspection; but the former requires the node to be hooked to a block device, and the latter is experimental. Signed-off-by: Eric Blake <eblake@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2017-04-03iotests: Improve image-clear tests on non-aligned imageEric Blake1-6/+11
Tweak 097 and 176 to operate on an image that is not cluster-aligned, to give further coverage of clearing out an entire image, including the recent fix to eliminate the difference between fast path (97) and slow (176) for qcow2. Also tested on qcow (97 only, since qcow lacks snapshots). Signed-off-by: Eric Blake <eblake@redhat.com> Message-id: 20170331185356.2479-4-eblake@redhat.com Reviewed-by: Max Reitz <mreitz@redhat.com> Signed-off-by: Max Reitz <mreitz@redhat.com>
2017-04-03iotests: fix 097 when run with qcowDaniel P. Berrange1-0/+126
The previous commit: commit a3e1505daec31ef56f0489f8c8fff1b8e4ca92bd Author: Eric Blake <eblake@redhat.com> Date: Mon Dec 5 09:49:34 2016 -0600 qcow2: Don't strand clusters near 2G intervals during commit extended the 097 test case so that it did two passes, once with an internal snapshot, once without. qcow (v1) does not support internal snapshots, so this change broke test 097 when run against qcow. This splits 097 in two, creating a new 176 that tests the internal snapshot codepath, effectively putting 097 back to its content before the above commit. Reviewed-by: Max Reitz <mreitz@redhat.com> Signed-off-by: Daniel P. Berrange <berrange@redhat.com> Message-Id: <20170221115512.21918-8-berrange@redhat.com> [eblake: test collisions: s/173/176/g] Signed-off-by: Eric Blake <eblake@redhat.com> Message-id: 20170331185356.2479-2-eblake@redhat.com Signed-off-by: Max Reitz <mreitz@redhat.com>