weston/tests/bad-buffer-test.c
Loïc Molinari 343adb2acd tests: Speed up runtime using immediate repaint on capture
The test suite is throttled by the headless backend repaint
timer. This commit uses the headless refresh rate option to speed up
runtime by using the immediate repaint-only-on-capture mode by
default. Tests which don't support that mode yet override the refresh
value to use the highest rate possible.

Fixes #682

Signed-off-by: Loïc Molinari <loic.molinari@collabora.com>
2024-02-22 14:26:32 +00:00

197 lines
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/*
* Copyright © 2012 Intel Corporation
* Copyright © 2013 Collabora, Ltd.
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial
* portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include "config.h"
#include <errno.h>
#include <fcntl.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "shared/os-compatibility.h"
#include "weston-test-client-helper.h"
#include "weston-test-fixture-compositor.h"
static enum test_result_code
fixture_setup(struct weston_test_harness *harness)
{
struct compositor_setup setup;
compositor_setup_defaults(&setup);
setup.shell = SHELL_TEST_DESKTOP;
setup.refresh = HIGHEST_OUTPUT_REFRESH;
return weston_test_harness_execute_as_client(harness, &setup);
}
DECLARE_FIXTURE_SETUP(fixture_setup);
/* These three functions are copied from shared/os-compatibility.c in order to
* behave like older clients, and allow ftruncate() to shrink the files size,
* so SIGBUS can still happen.
*
* There is no reason not to use os_create_anonymous_file() otherwise. */
#ifndef HAVE_MKOSTEMP
static int
set_cloexec_or_close(int fd)
{
if (os_fd_set_cloexec(fd) != 0) {
close(fd);
return -1;
}
return fd;
}
#endif
static int
create_tmpfile_cloexec(char *tmpname)
{
int fd;
#ifdef HAVE_MKOSTEMP
fd = mkostemp(tmpname, O_CLOEXEC);
if (fd >= 0)
unlink(tmpname);
#else
fd = mkstemp(tmpname);
if (fd >= 0) {
fd = set_cloexec_or_close(fd);
unlink(tmpname);
}
#endif
return fd;
}
static int
create_anonymous_file_without_seals(off_t size)
{
static const char template[] = "/weston-test-XXXXXX";
const char *path;
char *name;
int fd;
int ret;
path = getenv("XDG_RUNTIME_DIR");
if (!path) {
errno = ENOENT;
return -1;
}
name = malloc(strlen(path) + sizeof(template));
if (!name)
return -1;
strcpy(name, path);
strcat(name, template);
fd = create_tmpfile_cloexec(name);
free(name);
if (fd < 0)
return -1;
#ifdef HAVE_POSIX_FALLOCATE
do {
ret = posix_fallocate(fd, 0, size);
} while (ret == EINTR);
if (ret != 0) {
close(fd);
errno = ret;
return -1;
}
#else
do {
ret = ftruncate(fd, size);
} while (ret < 0 && errno == EINTR);
if (ret < 0) {
close(fd);
return -1;
}
#endif
return fd;
}
/* tests, that attempt to crash the compositor on purpose */
static struct wl_buffer *
create_bad_shm_buffer(struct client *client, int width, int height)
{
struct wl_shm *shm = client->wl_shm;
int stride = width * 4;
int size = stride * height;
struct wl_shm_pool *pool;
struct wl_buffer *buffer;
int fd;
fd = create_anonymous_file_without_seals(size);
assert(fd >= 0);
pool = wl_shm_create_pool(shm, fd, size);
buffer = wl_shm_pool_create_buffer(pool, 0, width, height, stride,
WL_SHM_FORMAT_ARGB8888);
wl_shm_pool_destroy(pool);
/* Truncate the file to a small size, so that the compositor
* will access it out-of-bounds, and hit SIGBUS.
*/
assert(ftruncate(fd, 12) == 0);
close(fd);
return buffer;
}
TEST(test_truncated_shm_file)
{
struct client *client;
struct wl_buffer *bad_buffer;
struct wl_surface *surface;
struct wl_callback *frame_cb;
int frame;
client = create_client_and_test_surface(46, 76, 111, 134);
assert(client);
surface = client->surface->wl_surface;
bad_buffer = create_bad_shm_buffer(client, 200, 200);
wl_surface_attach(surface, bad_buffer, 0, 0);
wl_surface_damage(surface, 0, 0, 200, 200);
frame_cb = frame_callback_set(surface, &frame);
wl_surface_commit(surface);
if (!frame_callback_wait_nofail(client, &frame))
wl_callback_destroy(frame_cb);
expect_protocol_error(client, &wl_buffer_interface,
WL_SHM_ERROR_INVALID_FD);
wl_buffer_destroy(bad_buffer);
client_destroy(client);
}