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      1 /*
      2  * Copyright (c) 2015 Cedric Hnyda <chnyda (at) 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 events not advertised in the input device bits
     22   *  are filtered.
     23   */
     24 
     25 #include <linux/input.h>
     26 #include <linux/uinput.h>
     27 
     28 #include "test.h"
     29 #include "safe_macros.h"
     30 #include "lapi/fcntl.h"
     31 #include "input_helper.h"
     32 
     33 #define X_VALUE 10
     34 #define Y_VALUE 10
     35 
     36 #define NB_TEST 20
     37 
     38 static void setup(void);
     39 static void send_events(void);
     40 static void cleanup(void);
     41 
     42 static int fd;
     43 static int fd2;
     44 
     45 char *TCID = "input05";
     46 
     47 int main(int ac, char **av)
     48 {
     49 	int lc;
     50 	int pid;
     51 
     52 	tst_parse_opts(ac, av, NULL, NULL);
     53 
     54 	setup();
     55 
     56 	for (lc = 0; TEST_LOOPING(lc); ++lc) {
     57 		pid = tst_fork();
     58 
     59 		switch (pid) {
     60 		case 0:
     61 			send_events();
     62 			exit(0);
     63 		case -1:
     64 			tst_brkm(TBROK | TERRNO, cleanup, "fork() failed");
     65 		default:
     66 			if (no_events_queued(fd2, 1))
     67 				tst_resm(TPASS, "No data received in eventX");
     68 			else
     69 				tst_resm(TFAIL, "Data received in eventX");
     70 		break;
     71 		}
     72 
     73 		SAFE_WAITPID(NULL, pid, NULL, 0);
     74 	}
     75 
     76 	cleanup();
     77 	tst_exit();
     78 }
     79 
     80 static void setup(void)
     81 {
     82 	tst_require_root();
     83 
     84 	fd = open_uinput();
     85 
     86 	SAFE_IOCTL(NULL, fd, UI_SET_EVBIT, EV_KEY);
     87 	SAFE_IOCTL(NULL, fd, UI_SET_KEYBIT, BTN_LEFT);
     88 
     89 	create_device(fd);
     90 
     91 	fd2 = open_device();
     92 }
     93 
     94 static void send_events(void)
     95 {
     96 	int nb;
     97 
     98 	for (nb = 0; nb < NB_TEST; ++nb) {
     99 		send_rel_move(fd, X_VALUE, Y_VALUE);
    100 		usleep(1000);
    101 	}
    102 }
    103 
    104 static void cleanup(void)
    105 {
    106 	destroy_device(fd);
    107 }
    108