1 /*- 2 * Copyright (c) 2010-2011 Monthadar Al Jaberi, TerraNet AB 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer, 10 * without modification. 11 * 2. Redistributions in binary form must reproduce at minimum a disclaimer 12 * similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any 13 * redistribution must be conditioned upon including a substantially 14 * similar Disclaimer requirement for further binary redistribution. 15 * 16 * NO WARRANTY 17 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 18 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 19 * LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY 20 * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL 21 * THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, 22 * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 23 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 24 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER 25 * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 26 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 27 * THE POSSIBILITY OF SUCH DAMAGES. 28 * 29 * $FreeBSD$ 30 */ 31 #include <stdio.h> 32 #include <stdlib.h> 33 #include <fcntl.h> 34 #include <sys/ioctl.h> 35 36 /* 37 * From the driver itself 38 */ 39 #include <plugins/visibility_ioctl.h> 40 41 static int dev = -1; 42 43 static void 44 toggle_medium(int op) 45 { 46 if (ioctl(dev, VISIOCTLOPEN, &op) < 0) { 47 printf("error opening/closing medium\n"); 48 } 49 } 50 51 static void 52 link_op(struct link *l) 53 { 54 if (ioctl(dev, VISIOCTLLINK, l) < 0) { 55 printf("error making a link operation\n"); 56 } 57 } 58 59 static void 60 usage(const char *argv[]) 61 { 62 printf("usage: %s [o | c | [ [a|d] wtap_id1 wtap_id2]]\n", 63 argv[0]); 64 } 65 66 int 67 main(int argc, const char* argv[]) 68 { 69 struct link l; 70 char cmd; 71 72 if (argc < 2) { 73 usage(argv); 74 exit(1); 75 } 76 77 dev = open("/dev/visctl", O_RDONLY); 78 if (dev < 0) { 79 printf("error opening visctl cdev\n"); 80 exit(1); 81 } 82 83 cmd = (char)*argv[1]; 84 85 switch (cmd) { 86 case 'o': 87 toggle_medium(1); 88 break; 89 case 'c': 90 toggle_medium(0); 91 break; 92 case 'a': 93 if (argc < 4) { 94 usage(argv); 95 exit(1); 96 } 97 l.op = 1; 98 l.id1 = atoi(argv[2]); 99 l.id2 = atoi(argv[3]); 100 link_op(&l); 101 break; 102 case 'd': 103 if (argc < 4) { 104 usage(argv); 105 exit(1); 106 } 107 l.op = 0; 108 l.id1 = atoi(argv[2]); 109 l.id2 = atoi(argv[3]); 110 link_op(&l); 111 break; 112 default: 113 printf("wtap ioctl: unknown command '%c'\n", *argv[1]); 114 exit(1); 115 } 116 exit(0); 117 } 118