1 /*
2 * Copyright (c) 2015 Cedric Hnyda <chnyda@suse.com>
3 *
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License as
6 * published by the Free Software Foundation; either version 2 of
7 * the License, or (at your option) any later version.
8 *
9 * This program is distributed in the hope that it would be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write the Free Software Foundation,
16 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
17 */
18
19 /*
20 * Create a virtual device (mouse), send events to /dev/uinput
21 * and check that the events are not received in /dev/input/eventX
22 * because the device is grabbed by another process
23 */
24
25 #include <linux/input.h>
26
27 #include "test.h"
28 #include "safe_macros.h"
29 #include "lapi/fcntl.h"
30 #include "input_helper.h"
31
32 #define NB_TEST 20
33
34 static void setup(void);
35 static void send_information(void);
36 static void cleanup(void);
37
38 static int fd;
39 static int fd2;
40
41 char *TCID = "input02";
42
main(int ac,char ** av)43 int main(int ac, char **av)
44 {
45 int lc;
46 int pid;
47
48 tst_parse_opts(ac, av, NULL, NULL);
49
50 setup();
51
52 for (lc = 0; TEST_LOOPING(lc); ++lc) {
53 pid = tst_fork();
54
55 fd2 = open_device();
56
57 switch (pid) {
58 case 0:
59 send_information();
60 exit(0);
61 case -1:
62 tst_brkm(TBROK | TERRNO, cleanup, "fork() failed");
63 default:
64 if (no_events_queued(fd2, 0))
65 tst_resm(TPASS, "No data received in eventX");
66 else
67 tst_resm(TFAIL, "Data received in eventX");
68 SAFE_CLOSE(NULL, fd2);
69 break;
70 }
71
72 SAFE_WAITPID(NULL, pid, NULL, 0);
73 }
74
75 cleanup();
76 tst_exit();
77 }
78
setup(void)79 static void setup(void)
80 {
81 tst_require_root();
82
83 fd = open_uinput();
84 setup_mouse_events(fd);
85 create_device(fd);
86 }
87
send_information(void)88 static void send_information(void)
89 {
90 int nb;
91
92 SAFE_IOCTL(NULL, fd2, EVIOCGRAB, 1);
93 tst_resm(TINFO, "The virtual device was grabbed");
94
95 for (nb = 0; nb < NB_TEST; ++nb) {
96 send_rel_move(fd, 10, 1);
97 usleep(1000);
98 }
99
100 SAFE_CLOSE(NULL, fd2);
101 }
102
cleanup(void)103 static void cleanup(void)
104 {
105 destroy_device(fd);
106 }
107