1 /*- 2 * Copyright (c) 2010-2011 Juniper Networks, Inc. 3 * All rights reserved. 4 * 5 * This software was developed by Robert N. M. Watson under contract 6 * to Juniper Networks, Inc. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 */ 29 30 /* 31 * This is a test tool for IP divert sockets. For the time being, it just 32 * exercise creation and binding of sockets, rather than their divert 33 * behaviour. It would be highly desirable to broaden this test tool to 34 * include packet injection and diversion. 35 */ 36 37 #include <sys/types.h> 38 #include <sys/socket.h> 39 40 #include <netinet/in.h> 41 42 #include <err.h> 43 #include <errno.h> 44 #include <stdio.h> 45 #include <stdlib.h> 46 #include <string.h> 47 #include <unistd.h> 48 49 static void 50 ok(const char *test) 51 { 52 53 fprintf(stderr, "%s: OK\n", test); 54 } 55 56 static void 57 fail(const char *test, const char *note) 58 { 59 60 fprintf(stderr, "%s - %s: FAIL (%s)\n", test, note, strerror(errno)); 61 exit(1); 62 } 63 64 static void 65 failx(const char *test, const char *note) 66 { 67 68 fprintf(stderr, "%s - %s: FAIL\n", test, note); 69 exit(1); 70 } 71 72 static int 73 ipdivert_create(const char *test) 74 { 75 int s; 76 77 s = socket(PF_DIVERT, SOCK_RAW, 0); 78 if (s < 0) 79 fail(test, "socket"); 80 return (s); 81 } 82 83 static void 84 ipdivert_close(const char *test, int s) 85 { 86 87 if (close(s) < 0) 88 fail(test, "close"); 89 } 90 91 static void 92 ipdivert_bind(const char *test, int s, u_short port, int expect) 93 { 94 struct sockaddr_in sin; 95 int err; 96 97 bzero(&sin, sizeof(sin)); 98 sin.sin_family = AF_INET; 99 sin.sin_addr.s_addr = htonl(INADDR_ANY); 100 sin.sin_port = htons(port); 101 102 err = bind(s, (struct sockaddr *)&sin, sizeof(sin)); 103 if (err < 0) { 104 if (expect == 0) 105 fail(test, "bind"); 106 if (errno != expect) 107 fail(test, "bind"); 108 } else { 109 if (expect != 0) 110 failx(test, "bind"); 111 } 112 } 113 114 int 115 main(int argc, char *argv[]) 116 { 117 const char *test; 118 int s1, s2; 119 120 /* 121 * First test: create and close an IP divert socket. 122 */ 123 test = "create_close"; 124 s1 = ipdivert_create(test); 125 ipdivert_close(test, s1); 126 ok(test); 127 128 /* 129 * Second test: create, bind, and close an IP divert socket. 130 */ 131 test = "create_bind_close"; 132 s1 = ipdivert_create(test); 133 ipdivert_bind(test, s1, 1000, 0); 134 ipdivert_close(test, s1); 135 ok(test); 136 137 /* 138 * Third test: create two sockets, bind to different ports, and close. 139 * This should succeed due to non-conflict on the port numbers. 140 */ 141 test = "create2_bind2_close2"; 142 s1 = ipdivert_create(test); 143 s2 = ipdivert_create(test); 144 ipdivert_bind(test, s1, 1000, 0); 145 ipdivert_bind(test, s2, 1001, 0); 146 ipdivert_close(test, s1); 147 ipdivert_close(test, s2); 148 ok(test); 149 150 /* 151 * Fourth test: create two sockets, bind to the *same* port, and 152 * close. This should fail due to conflicting port numbers. 153 */ 154 test = "create2_bind2_conflict_close2"; 155 s1 = ipdivert_create(test); 156 s2 = ipdivert_create(test); 157 ipdivert_bind(test, s1, 1000, 0); 158 ipdivert_bind(test, s2, 1000, EADDRINUSE); 159 ipdivert_close(test, s1); 160 ipdivert_close(test, s2); 161 ok(test); 162 163 return (0); 164 } 165