libinput/test/test-udev.c
Peter Hutterer 2c0c4a6516 Replace strneq() with hardcoded lengths with strstartswith()
Slightly less efficient but easier to read and it's not possible to
accidentally provide the wrong length. Plus it handles null pointers
correctly so get to skip the checks (which weren't needed for strneq()
either, but still).

Part-of: <https://gitlab.freedesktop.org/libinput/libinput/-/merge_requests/1121>
2025-01-20 10:29:47 +00:00

696 lines
17 KiB
C

/*
* Copyright © 2013 Red Hat, Inc.
*
* 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 <libinput.h>
#include <libinput-util.h>
#include <libudev.h>
#include <unistd.h>
#include "litest.h"
static int open_restricted(const char *path, int flags, void *data)
{
int fd;
fd = open(path, flags);
return fd < 0 ? -errno : fd;
}
static void close_restricted(int fd, void *data)
{
close(fd);
}
static const struct libinput_interface simple_interface = {
.open_restricted = open_restricted,
.close_restricted = close_restricted,
};
START_TEST(udev_create_NULL)
{
struct libinput *li;
struct udev *udev;
udev = udev_new();
li = libinput_udev_create_context(NULL, NULL, NULL);
litest_assert(li == NULL);
li = libinput_udev_create_context(&simple_interface, NULL, NULL);
litest_assert(li == NULL);
li = libinput_udev_create_context(NULL, NULL, udev);
litest_assert(li == NULL);
li = libinput_udev_create_context(&simple_interface, NULL, udev);
litest_assert_notnull(li);
litest_assert_int_eq(libinput_udev_assign_seat(li, NULL), -1);
libinput_unref(li);
udev_unref(udev);
}
END_TEST
START_TEST(udev_create_seat0)
{
struct libinput *li;
struct libinput_event *event;
struct udev *udev;
int fd;
udev = udev_new();
litest_assert_notnull(udev);
li = libinput_udev_create_context(&simple_interface, NULL, udev);
litest_assert_notnull(li);
litest_assert_int_eq(libinput_udev_assign_seat(li, "seat0"), 0);
fd = libinput_get_fd(li);
litest_assert_int_ge(fd, 0);
/* expect at least one event */
litest_dispatch(li);
event = libinput_get_event(li);
litest_assert_notnull(event);
libinput_event_destroy(event);
libinput_unref(li);
udev_unref(udev);
}
END_TEST
START_TEST(udev_create_empty_seat)
{
struct libinput *li;
struct libinput_event *event;
struct udev *udev;
int fd;
udev = udev_new();
litest_assert_notnull(udev);
/* expect a libinput reference, but no events */
li = libinput_udev_create_context(&simple_interface, NULL, udev);
litest_assert_notnull(li);
litest_assert_int_eq(libinput_udev_assign_seat(li, "seatdoesntexist"), 0);
fd = libinput_get_fd(li);
litest_assert_int_ge(fd, 0);
litest_dispatch(li);
event = libinput_get_event(li);
litest_assert(event == NULL);
libinput_event_destroy(event);
libinput_unref(li);
udev_unref(udev);
}
END_TEST
START_TEST(udev_create_seat_too_long)
{
struct libinput *li;
struct udev *udev;
char seatname[258];
memset(seatname, 'a', sizeof(seatname) - 1);
seatname[sizeof(seatname) - 1] = '\0';
udev = udev_new();
litest_assert_notnull(udev);
li = libinput_udev_create_context(&simple_interface, NULL, udev);
litest_assert_notnull(li);
litest_set_log_handler_bug(li);
litest_assert_int_eq(libinput_udev_assign_seat(li, seatname), -1);
litest_assert_empty_queue(li);
libinput_unref(li);
udev_unref(udev);
}
END_TEST
START_TEST(udev_set_user_data)
{
struct libinput *li;
struct udev *udev;
int data1, data2;
udev = udev_new();
litest_assert_notnull(udev);
li = libinput_udev_create_context(&simple_interface, &data1, udev);
litest_assert_notnull(li);
litest_assert(libinput_get_user_data(li) == &data1);
libinput_set_user_data(li, &data2);
litest_assert(libinput_get_user_data(li) == &data2);
libinput_unref(li);
udev_unref(udev);
}
END_TEST
START_TEST(udev_added_seat_default)
{
struct libinput *li;
struct libinput_event *event;
struct udev *udev;
struct libinput_device *device;
struct libinput_seat *seat;
const char *seat_name;
struct litest_device *dev;
udev = udev_new();
litest_assert_notnull(udev);
li = libinput_udev_create_context(&simple_interface, NULL, udev);
litest_assert_notnull(li);
litest_assert_int_eq(libinput_udev_assign_seat(li, "seat0"), 0);
litest_dispatch(li);
/* Drop any events from other devices */
litest_drain_events(li);
/* Now create our own device, it should be in the "default"
* logical seat. This test may fail if there is a local rule changing
* that, but it'll be fine for the 99% case. */
dev = litest_create(LITEST_MOUSE, NULL, NULL, NULL, NULL);
litest_wait_for_event_of_type(li, LIBINPUT_EVENT_DEVICE_ADDED);
event = libinput_get_event(li);
device = libinput_event_get_device(event);
seat = libinput_device_get_seat(device);
litest_assert_notnull(seat);
seat_name = libinput_seat_get_logical_name(seat);
litest_assert_str_eq(seat_name, "default");
libinput_event_destroy(event);
libinput_unref(li);
udev_unref(udev);
litest_delete_device(dev);
}
END_TEST
START_TEST(udev_change_seat)
{
struct libinput *li;
struct udev *udev;
struct libinput_event *event;
struct libinput_device *device;
struct libinput_seat *seat1, *seat2;
const char *seat1_name;
const char *seat2_name = "new seat";
int rc;
struct litest_device *dev;
udev = udev_new();
litest_assert_notnull(udev);
li = libinput_udev_create_context(&simple_interface, NULL, udev);
litest_assert_notnull(li);
litest_assert_int_eq(libinput_udev_assign_seat(li, "seat0"), 0);
litest_dispatch(li);
/* Drop any events from other devices */
litest_drain_events(li);
/* Now create our own device, it should be in the "default"
* logical seat. This test may fail if there is a local rule changing
* that, but it'll be fine for the 99% case. */
dev = litest_create(LITEST_MOUSE, NULL, NULL, NULL, NULL);
litest_wait_for_event_of_type(li, LIBINPUT_EVENT_DEVICE_ADDED);
event = libinput_get_event(li);
device = libinput_event_get_device(event);
libinput_device_ref(device);
seat1 = libinput_device_get_seat(device);
libinput_seat_ref(seat1);
seat1_name = libinput_seat_get_logical_name(seat1);
libinput_event_destroy(event);
litest_drain_events(li);
/* Changing the logical seat name will remove and re-add the device */
rc = libinput_device_set_seat_logical_name(device,
seat2_name);
litest_assert_int_eq(rc, 0);
litest_dispatch(li);
event = libinput_get_event(li);
litest_assert_enum_eq(libinput_event_get_type(event),
LIBINPUT_EVENT_DEVICE_REMOVED);
litest_assert(libinput_event_get_device(event) == device);
libinput_event_destroy(event);
event = libinput_get_event(li);
litest_assert_enum_eq(libinput_event_get_type(event),
LIBINPUT_EVENT_DEVICE_ADDED);
litest_assert(libinput_event_get_device(event) != device);
libinput_device_unref(device);
device = libinput_event_get_device(event);
seat2 = libinput_device_get_seat(device);
litest_assert_str_ne(libinput_seat_get_logical_name(seat2),
seat1_name);
litest_assert_str_eq(libinput_seat_get_logical_name(seat2),
seat2_name);
libinput_event_destroy(event);
libinput_seat_unref(seat1);
libinput_unref(li);
udev_unref(udev);
litest_delete_device(dev);
}
END_TEST
START_TEST(udev_double_suspend)
{
struct libinput *li;
struct libinput_event *event;
struct udev *udev;
int fd;
udev = udev_new();
litest_assert_notnull(udev);
li = libinput_udev_create_context(&simple_interface, NULL, udev);
litest_assert_notnull(li);
litest_assert_int_eq(libinput_udev_assign_seat(li, "seat0"), 0);
fd = libinput_get_fd(li);
litest_assert_int_ge(fd, 0);
/* expect at least one event */
litest_assert_int_ge(litest_dispatch(li), 0);
event = libinput_get_event(li);
litest_assert_notnull(event);
libinput_suspend(li);
libinput_suspend(li);
libinput_resume(li);
libinput_event_destroy(event);
libinput_unref(li);
udev_unref(udev);
}
END_TEST
START_TEST(udev_double_resume)
{
struct libinput *li;
struct libinput_event *event;
struct udev *udev;
int fd;
udev = udev_new();
litest_assert_notnull(udev);
li = libinput_udev_create_context(&simple_interface, NULL, udev);
litest_assert_notnull(li);
litest_assert_int_eq(libinput_udev_assign_seat(li, "seat0"), 0);
fd = libinput_get_fd(li);
litest_assert_int_ge(fd, 0);
/* expect at least one event */
litest_assert_int_ge(litest_dispatch(li), 0);
event = libinput_get_event(li);
litest_assert_notnull(event);
libinput_suspend(li);
libinput_resume(li);
libinput_resume(li);
libinput_event_destroy(event);
libinput_unref(li);
udev_unref(udev);
}
END_TEST
static void
process_events_count_devices(struct libinput *li, int *device_count)
{
struct libinput_event *event;
while ((event = libinput_get_event(li))) {
switch (libinput_event_get_type(event)) {
case LIBINPUT_EVENT_DEVICE_ADDED:
(*device_count)++;
break;
case LIBINPUT_EVENT_DEVICE_REMOVED:
(*device_count)--;
break;
default:
break;
}
libinput_event_destroy(event);
}
}
START_TEST(udev_suspend_resume)
{
struct libinput *li;
struct udev *udev;
int fd;
int num_devices = 0;
udev = udev_new();
litest_assert_notnull(udev);
li = libinput_udev_create_context(&simple_interface, NULL, udev);
litest_assert_notnull(li);
litest_assert_int_eq(libinput_udev_assign_seat(li, "seat0"), 0);
fd = libinput_get_fd(li);
litest_assert_int_ge(fd, 0);
/* Check that at least one device was discovered after creation. */
litest_assert_int_ge(litest_dispatch(li), 0);
process_events_count_devices(li, &num_devices);
litest_assert_int_gt(num_devices, 0);
/* Check that after a suspend, no devices are left. */
libinput_suspend(li);
litest_assert_int_ge(litest_dispatch(li), 0);
process_events_count_devices(li, &num_devices);
litest_assert_int_eq(num_devices, 0);
/* Check that after a resume, at least one device is discovered. */
libinput_resume(li);
litest_assert_int_ge(litest_dispatch(li), 0);
process_events_count_devices(li, &num_devices);
litest_assert_int_gt(num_devices, 0);
libinput_unref(li);
udev_unref(udev);
}
END_TEST
START_TEST(udev_resume_before_seat)
{
struct libinput *li;
struct udev *udev;
int rc;
udev = udev_new();
litest_assert_notnull(udev);
li = libinput_udev_create_context(&simple_interface, NULL, udev);
litest_assert_notnull(li);
rc = libinput_resume(li);
litest_assert_int_eq(rc, 0);
libinput_unref(li);
udev_unref(udev);
}
END_TEST
START_TEST(udev_suspend_resume_before_seat)
{
struct libinput *li;
struct udev *udev;
int rc;
udev = udev_new();
litest_assert_notnull(udev);
li = libinput_udev_create_context(&simple_interface, NULL, udev);
litest_assert_notnull(li);
libinput_suspend(li);
rc = libinput_resume(li);
litest_assert_int_eq(rc, 0);
libinput_unref(li);
udev_unref(udev);
}
END_TEST
START_TEST(udev_device_sysname)
{
struct libinput *li;
struct libinput_event *ev;
struct libinput_device *device;
const char *sysname;
struct udev *udev;
udev = udev_new();
litest_assert_notnull(udev);
li = libinput_udev_create_context(&simple_interface, NULL, udev);
litest_assert_notnull(li);
litest_assert_int_eq(libinput_udev_assign_seat(li, "seat0"), 0);
litest_dispatch(li);
while ((ev = libinput_get_event(li))) {
if (libinput_event_get_type(ev) !=
LIBINPUT_EVENT_DEVICE_ADDED) {
libinput_event_destroy(ev);
continue;
}
device = libinput_event_get_device(ev);
sysname = libinput_device_get_sysname(device);
litest_assert_notnull(sysname);
litest_assert_int_gt(strlen(sysname), 1U);
litest_assert(strchr(sysname, '/') == NULL);
litest_assert(strstartswith(sysname, "event"));
libinput_event_destroy(ev);
}
libinput_unref(li);
udev_unref(udev);
}
END_TEST
START_TEST(udev_seat_recycle)
{
struct udev *udev;
struct libinput *li;
struct libinput_event *ev;
struct libinput_device *device;
struct libinput_seat *saved_seat = NULL;
struct libinput_seat *seat;
int data = 0;
int found = 0;
void *user_data;
udev = udev_new();
litest_assert_notnull(udev);
li = libinput_udev_create_context(&simple_interface, NULL, udev);
litest_assert_notnull(li);
litest_assert_int_eq(libinput_udev_assign_seat(li, "seat0"), 0);
litest_dispatch(li);
while ((ev = libinput_get_event(li))) {
switch (libinput_event_get_type(ev)) {
case LIBINPUT_EVENT_DEVICE_ADDED:
if (saved_seat)
break;
device = libinput_event_get_device(ev);
litest_assert_notnull(device);
saved_seat = libinput_device_get_seat(device);
libinput_seat_set_user_data(saved_seat, &data);
libinput_seat_ref(saved_seat);
break;
default:
break;
}
libinput_event_destroy(ev);
}
litest_assert_notnull(saved_seat);
libinput_suspend(li);
litest_drain_events(li);
libinput_resume(li);
litest_dispatch(li);
while ((ev = libinput_get_event(li))) {
switch (libinput_event_get_type(ev)) {
case LIBINPUT_EVENT_DEVICE_ADDED:
device = libinput_event_get_device(ev);
litest_assert_notnull(device);
seat = libinput_device_get_seat(device);
user_data = libinput_seat_get_user_data(seat);
if (user_data == &data) {
found = 1;
litest_assert(seat == saved_seat);
}
break;
default:
break;
}
libinput_event_destroy(ev);
}
litest_assert(found == 1);
libinput_unref(li);
udev_unref(udev);
}
END_TEST
START_TEST(udev_path_add_device)
{
struct udev *udev;
struct libinput *li;
struct libinput_device *device;
udev = udev_new();
litest_assert_notnull(udev);
li = libinput_udev_create_context(&simple_interface, NULL, udev);
litest_assert_notnull(li);
litest_assert_int_eq(libinput_udev_assign_seat(li, "seat0"), 0);
litest_set_log_handler_bug(li);
device = libinput_path_add_device(li, "/dev/input/event0");
litest_assert(device == NULL);
litest_restore_log_handler(li);
libinput_unref(li);
udev_unref(udev);
}
END_TEST
START_TEST(udev_path_remove_device)
{
struct udev *udev;
struct libinput *li;
struct libinput_device *device;
struct libinput_event *event;
udev = udev_new();
litest_assert_notnull(udev);
li = libinput_udev_create_context(&simple_interface, NULL, udev);
litest_assert_notnull(li);
litest_assert_int_eq(libinput_udev_assign_seat(li, "seat0"), 0);
litest_dispatch(li);
litest_wait_for_event_of_type(li, LIBINPUT_EVENT_DEVICE_ADDED);
event = libinput_get_event(li);
device = libinput_event_get_device(event);
litest_assert_notnull(device);
/* no effect bug a bug log msg */
litest_set_log_handler_bug(li);
libinput_path_remove_device(device);
litest_restore_log_handler(li);
libinput_event_destroy(event);
libinput_unref(li);
udev_unref(udev);
}
END_TEST
START_TEST(udev_ignore_device)
{
struct udev *udev;
struct libinput *li;
struct libinput_device *device;
struct libinput_event *event;
struct litest_device *dev;
const char *devname;
dev = litest_create(LITEST_IGNORED_MOUSE, NULL, NULL, NULL, NULL);
devname = libevdev_get_name(dev->evdev);
udev = udev_new();
litest_assert_notnull(udev);
li = libinput_udev_create_context(&simple_interface, NULL, udev);
litest_assert_notnull(li);
litest_restore_log_handler(li);
litest_assert_int_eq(libinput_udev_assign_seat(li, "seat0"), 0);
litest_dispatch(li);
event = libinput_get_event(li);
litest_assert_notnull(event);
while (event) {
if (libinput_event_get_type(event) ==
LIBINPUT_EVENT_DEVICE_ADDED) {
const char *name;
device = libinput_event_get_device(event);
name = libinput_device_get_name(device);
litest_assert_str_ne(devname, name);
}
libinput_event_destroy(event);
litest_dispatch(li);
event = libinput_get_event(li);
}
libinput_unref(li);
udev_unref(udev);
litest_delete_device(dev);
}
END_TEST
TEST_COLLECTION(udev)
{
litest_add_no_device(udev_create_NULL);
litest_add_no_device(udev_create_seat0);
litest_add_no_device(udev_create_empty_seat);
litest_add_no_device(udev_create_seat_too_long);
litest_add_no_device(udev_set_user_data);
litest_add_no_device(udev_added_seat_default);
litest_add_no_device(udev_change_seat);
litest_add_for_device(udev_double_suspend, LITEST_SYNAPTICS_CLICKPAD_X220);
litest_add_for_device(udev_double_resume, LITEST_SYNAPTICS_CLICKPAD_X220);
litest_add_for_device(udev_suspend_resume, LITEST_SYNAPTICS_CLICKPAD_X220);
litest_add_for_device(udev_resume_before_seat, LITEST_SYNAPTICS_CLICKPAD_X220);
litest_add_for_device(udev_suspend_resume_before_seat, LITEST_SYNAPTICS_CLICKPAD_X220);
litest_add_for_device(udev_device_sysname, LITEST_SYNAPTICS_CLICKPAD_X220);
litest_add_for_device(udev_seat_recycle, LITEST_SYNAPTICS_CLICKPAD_X220);
litest_add_no_device(udev_path_add_device);
litest_add_for_device(udev_path_remove_device, LITEST_SYNAPTICS_CLICKPAD_X220);
litest_add_no_device(udev_ignore_device);
}