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libevdev/test/test-uinput.c
Peter Hutterer b642eddc31 test: sort-of autodetect whether we need root privileges 
It's not really autodetection, we just declare the test suites that need root
privs. But this way we can generically check for it from the main() that we
re-use across tests.

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
2018-06-15 15:01:19 +10:00

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/*
* Copyright © 2013 Red Hat, Inc.
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appear in all copies and that both that copyright
* notice and this permission notice appear in supporting documentation, and
* that the name of the copyright holders not be used in advertising or
* publicity pertaining to distribution of the software without specific,
* written prior permission. The copyright holders make no representations
* about the suitability of this software for any purpose. It is provided "as
* is" without express or implied warranty.
*
* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
* EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
* OF THIS SOFTWARE.
*/
#include <config.h>
#include <linux/input.h>
#include <errno.h>
#include <unistd.h>
#include <stdlib.h>
#include <fcntl.h>
#include <libevdev/libevdev-uinput.h>
#include "test-common.h"
#define UINPUT_NODE "/dev/uinput"
START_TEST(test_uinput_create_device)
{
struct libevdev *dev, *dev2;
struct libevdev_uinput *uidev;
int fd, uinput_fd;
unsigned int type, code;
int rc;
const char *devnode;
dev = libevdev_new();
ck_assert(dev != NULL);
libevdev_set_name(dev, TEST_DEVICE_NAME);
libevdev_enable_event_type(dev, EV_SYN);
libevdev_enable_event_type(dev, EV_REL);
libevdev_enable_event_code(dev, EV_REL, REL_X, NULL);
libevdev_enable_event_code(dev, EV_REL, REL_Y, NULL);
libevdev_enable_event_code(dev, EV_REL, REL_MAX, NULL);
rc = libevdev_uinput_create_from_device(dev, LIBEVDEV_UINPUT_OPEN_MANAGED, &uidev);
ck_assert_int_eq(rc, 0);
ck_assert(uidev != NULL);
uinput_fd = libevdev_uinput_get_fd(uidev);
ck_assert_int_gt(uinput_fd, -1);
devnode = libevdev_uinput_get_devnode(uidev);
ck_assert(devnode != NULL);
fd = open(devnode, O_RDONLY);
ck_assert_int_gt(fd, -1);
rc = libevdev_new_from_fd(fd, &dev2);
ck_assert_int_eq(rc, 0);
for (type = 0; type < EV_CNT; type++) {
int max = libevdev_event_type_get_max(type);
if (max == -1)
continue;
for (code = 0; code < max; code++) {
ck_assert_int_eq(libevdev_has_event_code(dev, type, code),
libevdev_has_event_code(dev2, type, code));
}
}
libevdev_free(dev);
libevdev_free(dev2);
libevdev_uinput_destroy(uidev);
close(fd);
/* uinput fd is managed, so make sure it did get closed */
ck_assert_int_eq(close(uinput_fd), -1);
ck_assert_int_eq(errno, EBADF);
}
END_TEST
START_TEST(test_uinput_create_device_invalid)
{
struct libevdev *dev;
struct libevdev_uinput *uidev = NULL;
int rc;
dev = libevdev_new();
ck_assert(dev != NULL);
libevdev_set_name(dev, TEST_DEVICE_NAME);
libevdev_enable_event_type(dev, EV_SYN);
libevdev_enable_event_type(dev, EV_REL);
libevdev_enable_event_code(dev, EV_REL, REL_X, NULL);
libevdev_enable_event_code(dev, EV_REL, REL_Y, NULL);
libevdev_set_log_function(test_logfunc_ignore_error, NULL);
rc = libevdev_uinput_create_from_device(dev, -1, &uidev);
ck_assert_int_eq(rc, -EBADF);
ck_assert(uidev == NULL);
libevdev_set_log_function(test_logfunc_abort_on_error, NULL);
libevdev_free(dev);
}
END_TEST
START_TEST(test_uinput_create_device_from_fd)
{
struct libevdev *dev, *dev2;
struct libevdev_uinput *uidev;
int fd, fd2;
unsigned int type, code;
int rc;
const char *devnode;
dev = libevdev_new();
ck_assert(dev != NULL);
libevdev_set_name(dev, TEST_DEVICE_NAME);
libevdev_enable_event_type(dev, EV_SYN);
libevdev_enable_event_type(dev, EV_REL);
libevdev_enable_event_code(dev, EV_REL, REL_X, NULL);
libevdev_enable_event_code(dev, EV_REL, REL_Y, NULL);
fd = open(UINPUT_NODE, O_RDWR);
ck_assert_int_gt(fd, -1);
rc = libevdev_uinput_create_from_device(dev, fd, &uidev);
ck_assert_int_eq(rc, 0);
ck_assert(uidev != NULL);
ck_assert_int_eq(libevdev_uinput_get_fd(uidev), fd);
devnode = libevdev_uinput_get_devnode(uidev);
ck_assert(devnode != NULL);
fd2 = open(devnode, O_RDONLY);
ck_assert_int_gt(fd2, -1);
rc = libevdev_new_from_fd(fd2, &dev2);
ck_assert_int_eq(rc, 0);
for (type = 0; type < EV_CNT; type++) {
int max = libevdev_event_type_get_max(type);
if (max == -1)
continue;
for (code = 0; code < max; code++) {
ck_assert_int_eq(libevdev_has_event_code(dev, type, code),
libevdev_has_event_code(dev2, type, code));
}
}
libevdev_free(dev);
libevdev_free(dev2);
libevdev_uinput_destroy(uidev);
close(fd);
close(fd2);
}
END_TEST
START_TEST(test_uinput_check_syspath_time)
{
struct libevdev *dev;
struct libevdev_uinput *uidev, *uidev2;
const char *syspath, *syspath2;
int fd, fd2;
int rc;
dev = libevdev_new();
ck_assert(dev != NULL);
libevdev_set_name(dev, TEST_DEVICE_NAME);
libevdev_enable_event_type(dev, EV_SYN);
libevdev_enable_event_type(dev, EV_REL);
libevdev_enable_event_code(dev, EV_REL, REL_X, NULL);
libevdev_enable_event_code(dev, EV_REL, REL_Y, NULL);
fd = open(UINPUT_NODE, O_RDWR);
ck_assert_int_gt(fd, -1);
fd2 = open(UINPUT_NODE, O_RDWR);
ck_assert_int_gt(fd2, -1);
rc = libevdev_uinput_create_from_device(dev, fd, &uidev);
ck_assert_int_eq(rc, 0);
/* sleep for 1.5 seconds. sysfs resolution is 1 second, so
creating both devices without delay means
libevdev_uinput_get_syspath can't actually differ between
them. By waiting, we get different ctime for uidev and uidev2,
and exercise that part of the code.
*/
usleep(1500000);
/* create a second one to test the syspath time filtering code */
rc = libevdev_uinput_create_from_device(dev, fd2, &uidev2);
ck_assert_int_eq(rc, 0);
syspath = libevdev_uinput_get_syspath(uidev);
ck_assert(syspath != NULL);
/* get syspath twice returns same pointer */
syspath2 = libevdev_uinput_get_syspath(uidev);
ck_assert(syspath == syspath2);
/* second dev has different syspath */
syspath2 = libevdev_uinput_get_syspath(uidev2);
ck_assert(strcmp(syspath, syspath2) != 0);
libevdev_free(dev);
libevdev_uinput_destroy(uidev);
libevdev_uinput_destroy(uidev2);
close(fd);
close(fd2);
}
END_TEST
START_TEST(test_uinput_check_syspath_name)
{
struct libevdev *dev;
struct libevdev_uinput *uidev, *uidev2;
const char *syspath, *syspath2;
int fd, fd2;
int rc;
dev = libevdev_new();
ck_assert(dev != NULL);
libevdev_set_name(dev, TEST_DEVICE_NAME);
libevdev_enable_event_type(dev, EV_SYN);
libevdev_enable_event_type(dev, EV_REL);
libevdev_enable_event_code(dev, EV_REL, REL_X, NULL);
libevdev_enable_event_code(dev, EV_REL, REL_Y, NULL);
fd = open(UINPUT_NODE, O_RDWR);
ck_assert_int_gt(fd, -1);
fd2 = open(UINPUT_NODE, O_RDWR);
ck_assert_int_gt(fd2, -1);
rc = libevdev_uinput_create_from_device(dev, fd, &uidev);
ck_assert_int_eq(rc, 0);
/* create a second one to stress the syspath filtering code */
libevdev_set_name(dev, TEST_DEVICE_NAME " 2");
rc = libevdev_uinput_create_from_device(dev, fd2, &uidev2);
ck_assert_int_eq(rc, 0);
syspath = libevdev_uinput_get_syspath(uidev);
ck_assert(syspath != NULL);
/* get syspath twice returns same pointer */
syspath2 = libevdev_uinput_get_syspath(uidev);
ck_assert(syspath == syspath2);
/* second dev has different syspath */
syspath2 = libevdev_uinput_get_syspath(uidev2);
ck_assert(strcmp(syspath, syspath2) != 0);
libevdev_free(dev);
libevdev_uinput_destroy(uidev);
libevdev_uinput_destroy(uidev2);
close(fd);
close(fd2);
}
END_TEST
START_TEST(test_uinput_events)
{
struct libevdev *dev;
struct libevdev_uinput *uidev;
int fd, fd2;
int rc;
const char *devnode;
int i;
const int nevents = 5;
struct input_event events[] = { {{0, 0}, EV_REL, REL_X, 1},
{{0, 0}, EV_REL, REL_Y, -1},
{{0, 0}, EV_SYN, SYN_REPORT, 0},
{{0, 0}, EV_KEY, BTN_LEFT, 1},
{{0, 0}, EV_SYN, SYN_REPORT, 0}};
struct input_event events_read[nevents];
dev = libevdev_new();
ck_assert(dev != NULL);
libevdev_set_name(dev, TEST_DEVICE_NAME);
libevdev_enable_event_type(dev, EV_SYN);
libevdev_enable_event_type(dev, EV_REL);
libevdev_enable_event_type(dev, EV_KEY);
libevdev_enable_event_code(dev, EV_REL, REL_X, NULL);
libevdev_enable_event_code(dev, EV_REL, REL_Y, NULL);
libevdev_enable_event_code(dev, EV_KEY, BTN_LEFT, NULL);
fd = open(UINPUT_NODE, O_RDWR);
ck_assert_int_gt(fd, -1);
rc = libevdev_uinput_create_from_device(dev, fd, &uidev);
ck_assert_int_eq(rc, 0);
ck_assert(uidev != NULL);
devnode = libevdev_uinput_get_devnode(uidev);
ck_assert(devnode != NULL);
fd2 = open(devnode, O_RDONLY);
for (i = 0; i < nevents; i++)
libevdev_uinput_write_event(uidev, events[i].type, events[i].code, events[i].value);
rc = read(fd2, events_read, sizeof(events_read));
ck_assert_int_eq(rc, sizeof(events_read));
for (i = 0; i < nevents; i++) {
ck_assert_int_eq(events[i].type, events_read[i].type);
ck_assert_int_eq(events[i].code, events_read[i].code);
ck_assert_int_eq(events[i].value, events_read[i].value);
}
libevdev_free(dev);
libevdev_uinput_destroy(uidev);
close(fd);
close(fd2);
}
END_TEST
START_TEST(test_uinput_properties)
{
struct libevdev *dev, *dev2;
struct libevdev_uinput *uidev;
int fd;
int rc;
const char *devnode;
dev = libevdev_new();
ck_assert(dev != NULL);
libevdev_set_name(dev, TEST_DEVICE_NAME);
libevdev_enable_event_type(dev, EV_SYN);
libevdev_enable_event_type(dev, EV_REL);
libevdev_enable_event_type(dev, EV_KEY);
libevdev_enable_event_code(dev, EV_REL, REL_X, NULL);
libevdev_enable_event_code(dev, EV_REL, REL_Y, NULL);
libevdev_enable_event_code(dev, EV_KEY, BTN_LEFT, NULL);
libevdev_enable_property(dev, INPUT_PROP_BUTTONPAD);
libevdev_enable_property(dev, INPUT_PROP_MAX);
rc = libevdev_uinput_create_from_device(dev, LIBEVDEV_UINPUT_OPEN_MANAGED, &uidev);
ck_assert_int_eq(rc, 0);
ck_assert(uidev != NULL);
devnode = libevdev_uinput_get_devnode(uidev);
ck_assert(devnode != NULL);
fd = open(devnode, O_RDONLY);
ck_assert_int_gt(fd, -1);
rc = libevdev_new_from_fd(fd, &dev2);
ck_assert_int_eq(rc, 0);
ck_assert(libevdev_has_property(dev2, INPUT_PROP_BUTTONPAD));
ck_assert(libevdev_has_property(dev2, INPUT_PROP_MAX));
libevdev_free(dev);
libevdev_free(dev2);
libevdev_uinput_destroy(uidev);
close(fd);
}
END_TEST
TEST_SUITE_ROOT_PRIVILEGES(uinput_suite)
{
Suite *s = suite_create("libevdev uinput device tests");
TCase *tc = tcase_create("device creation");
tcase_add_test(tc, test_uinput_create_device);
tcase_add_test(tc, test_uinput_create_device_invalid);
tcase_add_test(tc, test_uinput_create_device_from_fd);
tcase_add_test(tc, test_uinput_check_syspath_time);
tcase_add_test(tc, test_uinput_check_syspath_name);
suite_add_tcase(s, tc);
tc = tcase_create("device events");
tcase_add_test(tc, test_uinput_events);
suite_add_tcase(s, tc);
tc = tcase_create("device properties");
tcase_add_test(tc, test_uinput_properties);
suite_add_tcase(s, tc);
return s;
}
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