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 empty events to /dev/uinput 21 * and check that the events are not received in /dev/inputX 22 */ 23 24 #include <linux/input.h> 25 26 #include "test.h" 27 #include "safe_macros.h" 28 #include "lapi/fcntl.h" 29 #include "input_helper.h" 30 31 #define NB_TEST 20 32 33 static void setup(void); 34 static void send_events(void); 35 static void cleanup(void); 36 37 static int fd, fd2; 38 39 char *TCID = "input04"; 40 41 int main(int ac, char **av) 42 { 43 int lc; 44 int pid; 45 46 tst_parse_opts(ac, av, NULL, NULL); 47 48 setup(); 49 50 for (lc = 0; TEST_LOOPING(lc); ++lc) { 51 pid = tst_fork(); 52 53 switch (pid) { 54 case 0: 55 send_events(); 56 exit(0); 57 case -1: 58 tst_brkm(TBROK | TERRNO, cleanup, "fork() failed"); 59 default: 60 if (no_events_queued(fd2, 1)) 61 tst_resm(TPASS, 62 "No data received in /dev/inputX"); 63 else 64 tst_resm(TFAIL, 65 "Data received /dev/inputX"); 66 break; 67 } 68 69 SAFE_WAITPID(NULL, pid, NULL, 0); 70 } 71 72 cleanup(); 73 tst_exit(); 74 } 75 76 static void setup(void) 77 { 78 tst_require_root(); 79 80 fd = open_uinput(); 81 setup_mouse_events(fd); 82 create_device(fd); 83 84 fd2 = open_device(); 85 } 86 87 static void send_events(void) 88 { 89 int nb; 90 91 for (nb = 0; nb < NB_TEST; ++nb) { 92 send_rel_move(fd, 0, 0); 93 usleep(1000); 94 } 95 } 96 97 static void cleanup(void) 98 { 99 if (fd2 > 0 && close(fd2)) 100 tst_resm(TWARN | TERRNO, "close(fd2)"); 101 102 destroy_device(fd); 103 } 104