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2023-07-10tests/qtest: Move mkimg() and have_qemu_img() from libqos to libqtestThomas Huth
These two functions can be useful for other qtests beside the qos-test, too, so move them to libqtest instead. Message-Id: <20230704071655.75381-3-thuth@redhat.com> Signed-off-by: Thomas Huth <thuth@redhat.com>
2023-06-27qtest: add qtest_pid()Marc-André Lureau
Used in the following test on win32, to share sockets with the QEMU process. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Thomas Huth <thuth@redhat.com> Message-Id: <20230606115658.677673-7-marcandre.lureau@redhat.com>
2023-06-15test/qtest: add xepvh to skip list for qtestVikram Garhwal
Like existing xen machines, xenpvh also cannot be used for qtest. Signed-off-by: Vikram Garhwal <vikram.garhwal@amd.com> Reviewed-by: Stefano Stabellini <sstabellini@kernel.org>
2023-06-02tests/qtest: add support for callback to receive QMP eventsDaniel P. Berrangé
Currently code must call one of the qtest_qmp_event* functions to fetch events. These are only usable if the immediate caller knows the particular event they want to capture, and are only interested in one specific event type. Adding ability to register an event callback lets the caller capture a range of events over any period of time. Reviewed-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Daniel P. Berrangé <berrange@redhat.com> Message-Id: <20230601161347.1803440-3-berrange@redhat.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
2023-06-02tests/qtest: add various qtest_qmp_assert_success() variantsDaniel P. Berrangé
Add several counterparts of qtest_qmp_assert_success() that can * Use va_list instead of ... * Accept a list of FDs to send * Return the response data Reviewed-by: Thomas Huth <thuth@redhat.com> Reviewed-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Daniel P. Berrangé <berrange@redhat.com> Message-Id: <20230601161347.1803440-2-berrange@redhat.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
2023-03-13libqtest: make qtest_qmp_add_client work on win32Marc-André Lureau
Use the "get-win32-socket" function to pass an opened socket to QEMU, instead of using "getfd", which relies on socket ancillary FD message passing. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Message-Id: <20230306122751.2355515-10-marcandre.lureau@redhat.com>
2023-03-13win32: replace closesocket() with close() wrapperMarc-André Lureau
Use a close() wrapper instead, so that we don't need to worry about closesocket() vs close() anymore, let's hope. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Stefan Berger <stefanb@linux.ibm.com> Message-Id: <20230221124802.4103554-17-marcandre.lureau@redhat.com>
2023-02-11libqtest: ensure waitpid() is only called oncePaolo Bonzini
If a test aborts after qtest_wait_qemu() is called, the SIGABRT hooks are still in place and waitpid() is called again. The second time it is called, the process does not exist anymore and the system call fails. Move the s->qemu_pid = -1 assignment to qtest_wait_qemu() to make it idempotent, and anyway remove the SIGABRT hook as well to avoid that qtest_check_status() is called twice. Because of the extra call, qtest_remove_abrt_handler() now has to be made idempotent as well. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2023-02-11libqtest: split qtest_spawn_qemu functionPaolo Bonzini
In order to create a function that allows testing of invalid command lines, extract the parts of qtest_init_without_qmp_handshake that do not require any successful set up of sockets. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2023-01-28tests: qtest: print device_add error before failing testIgor Mammedov
Signed-off-by: Igor Mammedov <imammedo@redhat.com> Message-Id: <20230112140312.3096331-2-imammedo@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2023-01-16tests/qtest: Poll on waitpid() for a while before sending SIGKILLStefan Berger
To prevent getting stuck on waitpid() in case the target process does not terminate on SIGTERM, poll on waitpid() for 30s and if the target process has not changed state until then send a SIGKILL to it. Signed-off-by: Stefan Berger <stefanb@linux.ibm.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Message-id: 20230112143413.3979057-1-stefanb@linux.ibm.com [PMM: changed TFR to RETRY_ON_EINTR]
2023-01-09error handling: Use RETRY_ON_EINTR() macro where applicableNikita Ivanov
There is a defined RETRY_ON_EINTR() macro in qemu/osdep.h which handles the same while loop. Resolves: https://gitlab.com/qemu-project/qemu/-/issues/415 Signed-off-by: Nikita Ivanov <nivanov@cloudlinux.com> Message-Id: <20221023090422.242617-3-nivanov@cloudlinux.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> [thuth: Dropped the hunk that changed socket_accept() in libqtest.c] Signed-off-by: Thomas Huth <thuth@redhat.com>
2023-01-09Refactoring: refactor TFR() macro to RETRY_ON_EINTR()Nikita Ivanov
Rename macro name to more transparent one and refactor it to expression. Signed-off-by: Nikita Ivanov <nivanov@cloudlinux.com> Message-Id: <20221023090422.242617-2-nivanov@cloudlinux.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Christian Schoenebeck <qemu_oss@crudebyte.com> Signed-off-by: Thomas Huth <thuth@redhat.com>
2022-10-28tests/qtest: libqtest: Correct the timeout unit of blocking receive calls ↵Bin Meng
for win32 Some qtest cases don't get response from the QEMU executable under test in time on Windows. It turns out that the socket receive call got timeout before it receive the complete response. The timeout value is supposed to be set to 50 seconds via the setsockopt() call, but there is a difference among platforms. The timeout unit of blocking receive calls is measured in seconds on non-Windows platforms but milliseconds on Windows. Signed-off-by: Bin Meng <bin.meng@windriver.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-Id: <20221028045736.679903-10-bin.meng@windriver.com> Signed-off-by: Thomas Huth <thuth@redhat.com>
2022-10-28tests/qtest: libqtest: Introduce qtest_wait_qemu()Bin Meng
Introduce an API for qtest to wait for the QEMU process to terminate. Suggested-by: Marc-André Lureau <marcandre.lureau@redhat.com> Signed-off-by: Bin Meng <bin.meng@windriver.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-Id: <20221028045736.679903-7-bin.meng@windriver.com> Signed-off-by: Thomas Huth <thuth@redhat.com>
2022-10-28tests/qtest: Support libqtest to build and run on WindowsBin Meng
At present the libqtest codes were written to depend on several POSIX APIs, including fork(), kill() and waitpid(). Unfortunately these APIs are not available on Windows. This commit implements the corresponding functionalities using win32 native APIs. With this change, all qtest cases can build successfully on a Windows host, and we can start qtest testing on Windows now. Signed-off-by: Xuzhou Cheng <xuzhou.cheng@windriver.com> Signed-off-by: Bin Meng <bin.meng@windriver.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-Id: <20221028045736.679903-4-bin.meng@windriver.com> Signed-off-by: Thomas Huth <thuth@redhat.com>
2022-10-28tests/qtest: Use send/recv for socket communicationXuzhou Cheng
Socket communication in the libqtest and libqmp codes uses read() and write() which work on any file descriptor on *nix, and sockets in *nix are an example of a file descriptor. However sockets on Windows do not use *nix-style file descriptors, so read() and write() cannot be used on sockets on Windows. Switch over to use send() and recv() instead which work on both Windows and *nix. Signed-off-by: Xuzhou Cheng <xuzhou.cheng@windriver.com> Signed-off-by: Bin Meng <bin.meng@windriver.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-Id: <20221028045736.679903-3-bin.meng@windriver.com> Signed-off-by: Thomas Huth <thuth@redhat.com>
2022-10-12tests/qtest: libqtest: Install signal handler via signal()Bin Meng
At present the codes uses sigaction() to install signal handler with a flag SA_RESETHAND. Such usage can be covered by the signal() API that is a simplified interface to the general sigaction() facility. Update to use signal() to install the signal handler, as it is available on Windows which we are going to support. Signed-off-by: Bin Meng <bin.meng@windriver.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-Id: <20221006151927.2079583-11-bmeng.cn@gmail.com> Signed-off-by: Thomas Huth <thuth@redhat.com>
2022-10-11tests/x86: add helper qtest_qmp_device_del_send()Michael Labiuk
Move sending 'device_del' command to separate function. Function can be used in case of addition action is needed to start actual removing device after sending command. Signed-off-by: Michael Labiuk <michael.labiuk@virtuozzo.com> Message-Id: <20220929223547.1429580-2-michael.labiuk@virtuozzo.com> Reviewed-by: Thomas Huth <thuth@redhat.com> [thuth: Fixed typo] Signed-off-by: Thomas Huth <thuth@redhat.com>
2022-09-27tests/qtest: libqtest: Replace the call to close a socket with closesocket()Bin Meng
close() is a *nix function. It works on any file descriptor, and sockets in *nix are an example of a file descriptor. closesocket() is a Windows-specific function, which works only specifically with sockets. Sockets on Windows do not use *nix-style file descriptors, and socket() returns a handle to a kernel object instead, so it must be closed with closesocket(). In QEMU there is already a logic to handle such platform difference in os-posix.h and os-win32.h, that: * closesocket maps to close on POSIX * closesocket maps to a wrapper that calls the real closesocket() on Windows Replace the call to close a socket with closesocket() instead. Signed-off-by: Bin Meng <bin.meng@windriver.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-Id: <20220925113032.1949844-46-bmeng.cn@gmail.com> Signed-off-by: Thomas Huth <thuth@redhat.com>
2022-09-27tests/qtest: libqtest: Exclude the *_fds APIs for win32Bin Meng
libqmp.c::qmp_fd_vsend_fds() is not available on Windows, hence any APIs in libqtest that call libqmp.c::qmp_fd_vsend_fds() should be excluded for win32 too. This includes the following: * qtest_qmp_vsend_fds() * qtest_vqmp_fds() * qtest_qmp_fds() * qtest_qmp_add_client() Note qtest_qmp_vsend() was wrongly written to call qmp_fd_vsend_fds() previously, but it should call the non fds version API qmp_fd_vsend(). Signed-off-by: Bin Meng <bin.meng@windriver.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-Id: <20220925113032.1949844-35-bmeng.cn@gmail.com> Signed-off-by: Thomas Huth <thuth@redhat.com>
2022-09-27tests/qtest: libqtest: Avoid using hardcoded /tmpBin Meng
The qtest library was written to use hardcoded /tmp directory for temporary files. Update to use g_get_tmp_dir() and g_dir_make_tmp() for a portable implementation. Signed-off-by: Bin Meng <bin.meng@windriver.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-Id: <20220925113032.1949844-22-bmeng.cn@gmail.com> Signed-off-by: Thomas Huth <thuth@redhat.com>
2022-08-25tests/qtest: Use g_mkdtemp()Bin Meng
Windows does not provide a mkdtemp() API, but glib does. Replace mkdtemp() call with the glib version. Signed-off-by: Bin Meng <bin.meng@windriver.com> Reviewed-by: Thomas Huth <thuth@redhat.com> Message-Id: <20220824094029.1634519-3-bmeng.cn@gmail.com> Signed-off-by: Thomas Huth <thuth@redhat.com>
2022-08-25tests/qtest: Use g_setenv()Bin Meng
Windows does not provide a setenv() API, but glib does. Replace setenv() call with the glib version. Signed-off-by: Bin Meng <bin.meng@windriver.com> Reviewed-by: Thomas Huth <thuth@redhat.com> Message-Id: <20220824094029.1634519-2-bmeng.cn@gmail.com> Signed-off-by: Thomas Huth <thuth@redhat.com>
2022-05-25hw: m25p80: allow write_enable latch get/setIris Chen
The write_enable latch property is not currently exposed. This commit makes it a modifiable property. Signed-off-by: Iris Chen <irischenlj@fb.com> Acked-by: Thomas Huth <thuth@redhat.com> Reviewed-by: Cédric Le Goater <clg@kaod.org> Reviewed-by: Francisco Iglesias <frasse.iglesias@gmail.com> Message-Id: <20220513055022.951759-1-irischenlj@fb.com> Signed-off-by: Cédric Le Goater <clg@kaod.org>
2022-05-18tests/qtest: use prctl(PR_SET_PDEATHSIG) as fallback to kill QEMUDaniel P. Berrangé
Although we register a ABRT handler to kill off QEMU when g_assert() triggers, we want an extra safety net. The QEMU process might be non-functional and thus not have responded to SIGTERM. The test script might also have crashed with SEGV, in which case the cleanup handlers won't ever run. Using the Linux specific prctl(PR_SET_PDEATHSIG) syscall, we can ensure that QEMU gets sent SIGKILL as soon as the controlling qtest exits, if nothing else has correctly told it to quit. Note, technically the death signal is sent when the *thread* that called fork() exits. IOW, if you are calling qtest_init() in one thread, letting that thread exit, and then expecting to run qtest_quit() in a different thread, things are not going to work out. Fortunately that is not a scenario that exists in qtests, as pairs of qtest_init and qtest_quit are always called from the same thread. Signed-off-by: Daniel P. Berrangé <berrange@redhat.com> Message-Id: <20220513154906.206715-3-berrange@redhat.com> Reviewed-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Thomas Huth <thuth@redhat.com>
2022-05-18tests/qtest: fix registration of ABRT handler for QEMU cleanupDaniel P. Berrangé
qtest_init registers a hook to cleanup the running QEMU process should g_assert() fire before qtest_quit is called. When the first hook is registered, it is supposed to triggere registration of the SIGABRT handler. Unfortunately the logic in hook_list_is_empty is inverted, so the SIGABRT handler never gets registered, unless 2 or more QEMU processes are run concurrently. This caused qtest to leak QEMU processes anytime g_assert triggers. Signed-off-by: Daniel P. Berrangé <berrange@redhat.com> Message-Id: <20220513154906.206715-2-berrange@redhat.com> Reviewed-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Thomas Huth <thuth@redhat.com>
2022-05-03libqtest: split QMP part in libqmpMarc-André Lureau
This will help moving QAPI/QMP in a common subproject. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Acked-by: Thomas Huth <thuth@redhat.com>
2022-05-03tests: move libqtest.h back under qtest/Marc-André Lureau
Since commit a2ce7dbd917 ("meson: convert tests/qtest to meson"), libqtest.h is under libqos/ directory, while libqtest.c is still in qtest/. Move back to its original location to avoid mixing with libqos/. Suggested-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Thomas Huth <thuth@redhat.com> Reviewed-by: Stefan Berger <stefanb@linux.ibm.com>
2022-04-21tests: print newline after QMP response in qtest logsDaniel P. Berrangé
The QMP commands have a trailing newline, but the response does not. This makes the qtest logs hard to follow as the next QMP command appears in the same line as the previous QMP response. Reviewed-by: Thomas Huth <thuth@redhat.com> Reviewed-by: Peter Xu <peterx@redhat.com> Reviewed-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Daniel P. Berrangé <berrange@redhat.com> Message-Id: <20220310171821.3724080-5-berrange@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2022-04-21tests: support QTEST_TRACE env variableDaniel P. Berrangé
When debugging failing qtests it is useful to be able to turn on trace output to stderr. The QTEST_TRACE env variable contents get injected as a '-trace <str>' command line arg Reviewed-by: Peter Xu <peterx@redhat.com> Reviewed-by: Thomas Huth <thuth@redhat.com> Reviewed-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Daniel P. Berrangé <berrange@redhat.com> Message-Id: <20220310171821.3724080-4-berrange@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2022-04-21qtest: simplify socket_send()Marc-André Lureau
Reuse qemu_write_full(). Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Thomas Huth <thuth@redhat.com> Message-Id: <20220420132624.2439741-33-marcandre.lureau@redhat.com>
2022-04-06Remove qemu-common.h include from most unitsMarc-André Lureau
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-Id: <20220323155743.1585078-33-marcandre.lureau@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-03-22Replace GCC_FMT_ATTR with G_GNUC_PRINTFMarc-André Lureau
One less qemu-specific macro. It also helps to make some headers/units only depend on glib, and thus moved in standalone projects eventually. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Richard W.M. Jones <rjones@redhat.com>
2022-03-22Drop qemu_foo() socket API wrapperMarc-André Lureau
The socket API wrappers were initially introduced in commit 00aa0040 ("Wrap recv to avoid warnings"), but made redundant with commit a2d96af4 ("osdep: add wrappers for socket functions") which fixes the win32 declarations and thus removed the earlier warnings. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2021-12-22tests/qtest: Add a function that checks whether a device is availableThomas Huth
Devices might not always be compiled into the QEMU target binaries. We already have the libqos framework that is good for handling such situations, but some of the qtests are not a real good fit for the libqos framework. Let's add a qtest_has_device() function for such tests instead. Message-Id: <20211220081054.151515-2-thuth@redhat.com> Signed-off-by: Thomas Huth <thuth@redhat.com>
2021-12-21tests/qtests: add qtest_qmp_add_client()Marc-André Lureau
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Acked-by: Gerd Hoffmann <kraxel@redhat.com>
2021-12-15tests/qtest: Add a function to check whether a machine is availableThomas Huth
It is nowadays possible to build QEMU with a reduced set of machines in each binary. However, the qtests still hard-code the expected machines and fail if the binary does not feature the required machine. Let's get a little bit more flexible here: Add a function that can be used to query whether a certain machine is available or not, and use it in some tests as an example (more work has to be done in other tests which will follow later). Message-Id: <20211201104347.51922-5-thuth@redhat.com> Acked-by: John Snow <jsnow@redhat.com> Signed-off-by: Thomas Huth <thuth@redhat.com>
2021-12-15tests/qtest: Add a function that gets a list with available machine typesThomas Huth
For the upcoming patches, we will need a way to gets a list with all available machine types. Refactor the qtest_cb_for_every_machine() to split the related code out into a separate new function, and gather the aliases of the various machine types, too. Message-Id: <20211201104347.51922-4-thuth@redhat.com> Signed-off-by: Thomas Huth <thuth@redhat.com>
2021-10-20tests: qtest: add qtest_has_accel() to check if tested binary supports ↵Igor Mammedov
accelerator Currently it is not possible to create tests that have KVM as a hard requirement on a host that doesn't support KVM for tested target binary (modulo going through the trouble of compiling out the offending test case). Following scenario makes test fail when it's run on non x86 host: qemu-system-x86_64 -enable-kvm -M q35,kernel-irqchip=on -smp 1,maxcpus=288 This patch introduces qtest_has_accel() to let users check if accel is available in advance and avoid executing non run-able test-cases. It implements detection of TCG and KVM only, the rest could be added later on, when we actually start testing them in qtest. Signed-off-by: Igor Mammedov <imammedo@redhat.com> Message-Id: <20210902113551.461632-3-imammedo@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2021-09-06libqtest: check for g_setenv() failurePeter Maydell
g_setenv() can fail; check for it when starting a QEMU process when we set the QEMU_AUDIO_DRV environment variable. Because this happens after fork() reporting an exact message via printf() is a bad idea; just exit(1), as we already do for the case of execlp() failure. Fixes: Coverity CID 1460117 Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Message-Id: <20210820163750.9106-1-peter.maydell@linaro.org> Signed-off-by: Thomas Huth <thuth@redhat.com>
2021-05-14libqtest: refuse QTEST_QEMU_BINARY=qemu-kvmStefan Hajnoczi
Some downstreams rename the QEMU binary to "qemu-kvm". This breaks qtest_get_arch(), which attempts to parse the target architecture from the QTEST_QEMU_BINARY environment variable. Print an error instead of returning the architecture "kvm". Things fail in weird ways when the architecture string is bogus. Arguably qtests should always be run in a build directory instead of against an installed QEMU. In any case, printing a clear error when this happens is helpful. Since this is an error that is triggered by the user and not a test failure, use exit(1) instead of abort(). Change the existing abort() call in qtest_get_arch() to exit(1) too for the same reason and to be consistent. Reported-by: Qin Wang <qinwang@rehdat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Emanuele Giuseppe Esposito <eesposit@redhat.com> Reviewed-by: Thomas Huth <thuth@redhat.com> Cc: Emanuele Giuseppe Esposito <eesposit@redhat.com> Message-Id: <20210412143050.725918-1-stefanha@redhat.com> Signed-off-by: Thomas Huth <thuth@redhat.com>
2021-03-08libqtest: add qtest_remove_abrt_handler()Stefan Hajnoczi
Add a function to remove previously-added abrt handler functions. Now that a symmetric pair of add/remove functions exists we can also balance the SIGABRT handler installation. The signal handler was installed each time qtest_add_abrt_handler() was called. Now it is installed when the abrt handler list becomes non-empty and removed again when the list becomes empty. The qtest_remove_abrt_handler() function will be used by vhost-user-blk-test. Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Wainer dos Santos Moschetta <wainersm@redhat.com> Message-Id: <20210223144653.811468-5-stefanha@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2021-03-08libqtest: add qtest_kill_qemu()Stefan Hajnoczi
Tests that manage multiple processes may wish to kill QEMU before destroying the QTestState. Expose a function to do that. The vhost-user-blk-test testcase will need this. Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Wainer dos Santos Moschetta <wainersm@redhat.com> Message-Id: <20210223144653.811468-4-stefanha@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2021-03-08libqtest: add qtest_socket_server()Stefan Hajnoczi
Add an API that returns a new UNIX domain socket in the listen state. The code for this was already there but only used internally in init_socket(). This new API will be used by vhost-user-blk-test. Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Thomas Huth <thuth@redhat.com> Reviewed-by: Wainer dos Santos Moschetta <wainersm@redhat.com> Message-Id: <20210223144653.811468-3-stefanha@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2021-01-27libqtest: Rework qtest_rsp()Markus Armbruster
qtest_rsp() is used in two different ways: (1) return some arguments to caller, which the caller must free, and (2) return no arguments to caller. Passing non-zero @expected_args gets you (1), and passing zero gets you (2). Having "the return value must be freed" depend on an argument this way is less than ideal. Provide separate functions for the two ways: (1) qtest_rsp_args() takes @expected_args (possibly zero), and returns that number of arguments. Caller must free the return value always. (2) qtest_rsp() assumes zero, and returns nothing. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Thomas Huth <thuth@redhat.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-Id: <20210126151649.2220902-1-armbru@redhat.com> Signed-off-by: Thomas Huth <thuth@redhat.com>
2021-01-11qtest/libqtest: fix heap-buffer-overflow in qtest_cb_for_every_machine()Gan Qixin
When the length of mname is less than 5, memcpy("xenfv", mname, 5) will cause heap buffer overflow. Therefore, use strncmp to avoid this problem. The asan showed stack: ERROR: AddressSanitizer: heap-buffer-overflow on address 0x60200000f2f4 at pc 0x7f65d8cc2225 bp 0x7ffe93cc5a60 sp 0x7ffe93cc5208 READ of size 5 at 0x60200000f2f4 thread T0 #0 0x7f65d8cc2224 in memcmp (/lib64/libasan.so.5+0xdf224) #1 0x5632c20be95b in qtest_cb_for_every_machine tests/qtest/libqtest.c:1282 #2 0x5632c20b7995 in main tests/qtest/test-hmp.c:160 #3 0x7f65d88fed42 in __libc_start_main (/lib64/libc.so.6+0x26d42) #4 0x5632c20b72cd in _start (build/tests/qtest/test-hmp+0x542cd) Reported-by: Euler Robot <euler.robot@huawei.com> Signed-off-by: Gan Qixin <ganqixin@huawei.com> Reviewed-by: Laurent Vivier <lvivier@redhat.com> Message-Id: <20210106050625.518041-1-ganqixin@huawei.com> Signed-off-by: Thomas Huth <thuth@redhat.com>
2020-12-19qobject: Change qobject_to_json()'s value to GStringMarkus Armbruster
qobject_to_json() and qobject_to_json_pretty() build a GString, then covert it to QString. Just one of the callers actually needs a QString: qemu_rbd_parse_filename(). A few others need a string they can modify: qmp_send_response(), qga's send_response(), to_json_str(), and qmp_fd_vsend_fds(). The remainder just need a string. Change qobject_to_json() and qobject_to_json_pretty() to return the GString. qemu_rbd_parse_filename() now has to convert to QString. All others save a QString temporary. to_json_str() actually becomes a bit simpler, because GString provides more convenient modification functions. Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20201211171152.146877-6-armbru@redhat.com>
2020-12-19qobject: Make qobject_to_json_pretty() take a pretty argumentMarkus Armbruster
Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20201211171152.146877-4-armbru@redhat.com>
2020-11-20qtest: do not return freed argument vector from qtest_rspPaolo Bonzini
If expected_args is 0, qtest frees the argument vector and then returns it nevertheless. Coverity complains; in practice this is not an issue because expected_args == 0 means that the caller is not interested in the argument vector, but it would be a potential problem if somebody wanted to add commands with optional arguments to qtest. Suggested-by: Kamil Dudka <kdudka@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Message-Id: <20201120073149.99079-1-pbonzini@redhat.com> Reviewed-by: Thomas Huth <thuth@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Thomas Huth <thuth@redhat.com>
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