1 /*- 2 * Copyright (c) 2004 Robert N. M. Watson 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 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * 26 * $FreeBSD$ 27 */ 28 29 #include <sys/types.h> 30 #include <sys/socket.h> 31 32 #include <netinet/in.h> 33 34 #include <err.h> 35 #include <errno.h> 36 #include <stdio.h> 37 #include <stdlib.h> 38 #include <string.h> 39 #include <unistd.h> 40 41 #define ACCF_NAME "dataready" 42 43 /* 44 * A number of small tests to confirm that attaching ACCF_DATA accept filters 45 * to inet4 ports works as expected. We test: 46 * 47 * - That no accept filter is attached on a newly created socket. 48 * - That bind() has no affect on the accept filter state. 49 * - That we can't attach an accept filter to a socket that isn't in the 50 * listen state. 51 * - That after we fail to attach the filter, querying the kernel shows no 52 * filter attached. 53 * - That we can attach an accept filter to a socket that is in the listen 54 * state. 55 * - That once an accept filter is attached, we can query to make sure it is 56 * attached. 57 */ 58 int 59 main(int argc, char *argv[]) 60 { 61 struct accept_filter_arg afa; 62 struct sockaddr_in sin; 63 socklen_t len; 64 int lso, ret; 65 66 printf("1..9\n"); 67 68 /* 69 * Step 0. Open socket(). 70 */ 71 lso = socket(PF_INET, SOCK_STREAM, 0); 72 if (lso == -1) 73 errx(-1, "not ok 1 - socket: %s", strerror(errno)); 74 printf("ok 1 - socket\n"); 75 76 /* 77 * Step 1. After socket(). Should return EINVAL, since no accept 78 * filter should be attached. 79 */ 80 bzero(&afa, sizeof(afa)); 81 len = sizeof(afa); 82 ret = getsockopt(lso, SOL_SOCKET, SO_ACCEPTFILTER, &afa, &len); 83 if (ret != -1) 84 errx(-1, "not ok 2 - getsockopt() after socket() succeeded"); 85 if (errno != EINVAL) 86 errx(-1, "not ok 2 - getsockopt() after socket() failed with " 87 "%d (%s)", errno, strerror(errno)); 88 printf("ok 2 - getsockopt\n"); 89 90 /* 91 * Step 2. Bind(). Ideally this will succeed. 92 */ 93 bzero(&sin, sizeof(sin)); 94 sin.sin_len = sizeof(sin); 95 sin.sin_family = AF_INET; 96 sin.sin_port = htons(8080); 97 sin.sin_addr.s_addr = htonl(INADDR_LOOPBACK); 98 if (bind(lso, (struct sockaddr *)&sin, sizeof(sin)) < 0) 99 errx(-1, "not ok 3 - bind %s", strerror(errno)); 100 printf("ok 3 - bind\n"); 101 102 /* 103 * Step 3: After bind(). getsockopt() should return EINVAL, since no 104 * accept filter should be attached. 105 */ 106 len = sizeof(afa); 107 ret = getsockopt(lso, SOL_SOCKET, SO_ACCEPTFILTER, &afa, &len); 108 if (ret != -1) 109 errx(-1, "not ok 4 - getsockopt() after bind() succeeded"); 110 if (errno != EINVAL) 111 errx(-1, "not ok 4 - getsockopt() after bind() failed with %d (%s)", 112 errno, strerror(errno)); 113 printf("ok 4 - getsockopt\n"); 114 115 /* 116 * Step 4: Setsockopt() before listen(). Should fail, since it's not 117 * yet a listen() socket. 118 */ 119 bzero(&afa, sizeof(afa)); 120 strcpy(afa.af_name, ACCF_NAME); 121 ret = setsockopt(lso, SOL_SOCKET, SO_ACCEPTFILTER, &afa, sizeof(afa)); 122 if (ret == 0) 123 errx(-1, "not ok 5 - setsockopt() before listen() succeeded"); 124 printf("ok 5 - setsockopt\n"); 125 126 /* 127 * Step 5: Getsockopt() after pre-listen() setsockopt(). Should 128 * fail with EINVAL, since setsockopt() should have failed. 129 */ 130 len = sizeof(afa); 131 ret = getsockopt(lso, SOL_SOCKET, SO_ACCEPTFILTER, &afa, &len); 132 if (ret == 0) 133 errx(-1, "not ok 6 - getsockopt() after pre-listen() setsockopt() " 134 "succeeded"); 135 if (errno != EINVAL) 136 errx(-1, "not ok 6 - pre-listen() getsockopt() failed with %d (%s)", 137 errno, strerror(errno)); 138 printf("ok 6 - getsockopt\n"); 139 140 /* 141 * Step 6: listen(). 142 */ 143 if (listen(lso, -1) < 0) 144 errx(-1, "not ok 7 - listen: %s", strerror(errno)); 145 printf("ok 7 - listen\n"); 146 147 /* 148 * Step 7: After listen(). This call to setsockopt() should succeed. 149 */ 150 bzero(&afa, sizeof(afa)); 151 strcpy(afa.af_name, ACCF_NAME); 152 ret = setsockopt(lso, SOL_SOCKET, SO_ACCEPTFILTER, &afa, sizeof(afa)); 153 if (ret != 0) 154 errx(-1, "not ok 8 - setsockopt() after listen() failed with %d " 155 "(%s)", errno, strerror(errno)); 156 if (len != sizeof(afa)) 157 errx(-1, "not ok 8 - setsockopt() after listen() returned wrong " 158 "size (%d vs expected %d)", len, sizeof(afa)); 159 printf("ok 8 - setsockopt\n"); 160 161 /* 162 * Step 8: After setsockopt(). Should succeed and identify 163 * ACCF_NAME. 164 */ 165 bzero(&afa, sizeof(afa)); 166 len = sizeof(afa); 167 ret = getsockopt(lso, SOL_SOCKET, SO_ACCEPTFILTER, &afa, &len); 168 if (ret != 0) 169 errx(-1, "not ok 9 - getsockopt() after listen() setsockopt() " 170 "failed with %d (%s)", errno, strerror(errno)); 171 if (len != sizeof(afa)) 172 errx(-1, "not ok 9 - getsockopt() after setsockopet() after " 173 "listen() returned wrong size (got %d expected %d)", len, 174 sizeof(afa)); 175 if (strcmp(afa.af_name, ACCF_NAME) != 0) 176 errx(-1, "not ok 9 - getsockopt() after setsockopt() after " 177 "listen() mismatch (got %s expected %s)", afa.af_name, 178 ACCF_NAME); 179 printf("ok 9 - getsockopt\n"); 180 181 close(lso); 182 return (0); 183 } 184