1 /* 2 * Copyright (c) 2009-2012 Niels Provos and Nick Mathewson 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 3. The name of the author may not be used to endorse or promote products 13 * derived from this software without specific prior written permission. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 */ 26 #include "util-internal.h" 27 28 #ifdef _WIN32 29 #include <winsock2.h> 30 #include <windows.h> 31 #endif 32 33 #include <sys/types.h> 34 35 #ifndef _WIN32 36 #include <sys/socket.h> 37 #include <netinet/in.h> 38 # ifdef _XOPEN_SOURCE_EXTENDED 39 # include <arpa/inet.h> 40 # endif 41 #include <unistd.h> 42 #endif 43 #ifdef EVENT__HAVE_SYS_RESOURCE_H 44 #include <sys/resource.h> 45 #endif 46 47 #include <string.h> 48 49 #include "event2/listener.h" 50 #include "event2/event.h" 51 #include "event2/util.h" 52 53 #include "regress.h" 54 #include "tinytest.h" 55 #include "tinytest_macros.h" 56 57 static void 58 acceptcb(struct evconnlistener *listener, evutil_socket_t fd, 59 struct sockaddr *addr, int socklen, void *arg) 60 { 61 int *ptr = arg; 62 --*ptr; 63 TT_BLATHER(("Got one for %p", ptr)); 64 evutil_closesocket(fd); 65 66 if (! *ptr) 67 evconnlistener_disable(listener); 68 } 69 70 static void 71 regress_pick_a_port(void *arg) 72 { 73 struct basic_test_data *data = arg; 74 struct event_base *base = data->base; 75 struct evconnlistener *listener1 = NULL, *listener2 = NULL; 76 struct sockaddr_in sin; 77 int count1 = 2, count2 = 1; 78 struct sockaddr_storage ss1, ss2; 79 struct sockaddr_in *sin1, *sin2; 80 ev_socklen_t slen1 = sizeof(ss1), slen2 = sizeof(ss2); 81 unsigned int flags = 82 LEV_OPT_CLOSE_ON_FREE|LEV_OPT_REUSEABLE|LEV_OPT_CLOSE_ON_EXEC; 83 84 evutil_socket_t fd1 = -1, fd2 = -1, fd3 = -1; 85 86 if (data->setup_data && strstr((char*)data->setup_data, "ts")) { 87 flags |= LEV_OPT_THREADSAFE; 88 } 89 90 memset(&sin, 0, sizeof(sin)); 91 sin.sin_family = AF_INET; 92 sin.sin_addr.s_addr = htonl(0x7f000001); /* 127.0.0.1 */ 93 sin.sin_port = 0; /* "You pick!" */ 94 95 listener1 = evconnlistener_new_bind(base, acceptcb, &count1, 96 flags, -1, (struct sockaddr *)&sin, sizeof(sin)); 97 tt_assert(listener1); 98 listener2 = evconnlistener_new_bind(base, acceptcb, &count2, 99 flags, -1, (struct sockaddr *)&sin, sizeof(sin)); 100 tt_assert(listener2); 101 102 tt_int_op(evconnlistener_get_fd(listener1), >=, 0); 103 tt_int_op(evconnlistener_get_fd(listener2), >=, 0); 104 tt_assert(getsockname(evconnlistener_get_fd(listener1), 105 (struct sockaddr*)&ss1, &slen1) == 0); 106 tt_assert(getsockname(evconnlistener_get_fd(listener2), 107 (struct sockaddr*)&ss2, &slen2) == 0); 108 tt_int_op(ss1.ss_family, ==, AF_INET); 109 tt_int_op(ss2.ss_family, ==, AF_INET); 110 111 sin1 = (struct sockaddr_in*)&ss1; 112 sin2 = (struct sockaddr_in*)&ss2; 113 tt_int_op(ntohl(sin1->sin_addr.s_addr), ==, 0x7f000001); 114 tt_int_op(ntohl(sin2->sin_addr.s_addr), ==, 0x7f000001); 115 tt_int_op(sin1->sin_port, !=, sin2->sin_port); 116 117 tt_ptr_op(evconnlistener_get_base(listener1), ==, base); 118 tt_ptr_op(evconnlistener_get_base(listener2), ==, base); 119 120 fd1 = fd2 = fd3 = -1; 121 evutil_socket_connect_(&fd1, (struct sockaddr*)&ss1, slen1); 122 evutil_socket_connect_(&fd2, (struct sockaddr*)&ss1, slen1); 123 evutil_socket_connect_(&fd3, (struct sockaddr*)&ss2, slen2); 124 125 #ifdef _WIN32 126 Sleep(100); /* XXXX this is a stupid stopgap. */ 127 #endif 128 event_base_dispatch(base); 129 130 tt_int_op(count1, ==, 0); 131 tt_int_op(count2, ==, 0); 132 133 end: 134 if (fd1>=0) 135 EVUTIL_CLOSESOCKET(fd1); 136 if (fd2>=0) 137 EVUTIL_CLOSESOCKET(fd2); 138 if (fd3>=0) 139 EVUTIL_CLOSESOCKET(fd3); 140 if (listener1) 141 evconnlistener_free(listener1); 142 if (listener2) 143 evconnlistener_free(listener2); 144 } 145 146 static void 147 errorcb(struct evconnlistener *lis, void *data_) 148 { 149 int *data = data_; 150 *data = 1000; 151 evconnlistener_disable(lis); 152 } 153 154 static void 155 regress_listener_error(void *arg) 156 { 157 struct basic_test_data *data = arg; 158 struct event_base *base = data->base; 159 struct evconnlistener *listener = NULL; 160 int count = 1; 161 unsigned int flags = LEV_OPT_CLOSE_ON_FREE|LEV_OPT_REUSEABLE; 162 163 if (data->setup_data && strstr((char*)data->setup_data, "ts")) { 164 flags |= LEV_OPT_THREADSAFE; 165 } 166 167 /* send, so that pair[0] will look 'readable'*/ 168 tt_int_op(send(data->pair[1], "hello", 5, 0), >, 0); 169 170 /* Start a listener with a bogus socket. */ 171 listener = evconnlistener_new(base, acceptcb, &count, 172 flags, 0, 173 data->pair[0]); 174 tt_assert(listener); 175 176 evconnlistener_set_error_cb(listener, errorcb); 177 178 tt_assert(listener); 179 180 event_base_dispatch(base); 181 tt_int_op(count,==,1000); /* set by error cb */ 182 183 end: 184 if (listener) 185 evconnlistener_free(listener); 186 } 187 188 #ifdef EVENT__HAVE_SETRLIMIT 189 static void 190 regress_listener_error_unlock(void *arg) 191 { 192 struct basic_test_data *data = arg; 193 struct event_base *base = data->base; 194 struct evconnlistener *listener = NULL; 195 unsigned int flags = 196 LEV_OPT_CLOSE_ON_FREE|LEV_OPT_REUSEABLE|LEV_OPT_THREADSAFE; 197 198 tt_int_op(send(data->pair[1], "hello", 5, 0), >, 0); 199 200 /* Start a listener with a bogus socket. */ 201 listener = evconnlistener_new(base, acceptcb, NULL, flags, 0, data->pair[0]); 202 tt_assert(listener); 203 204 /** accept() must errored out with EMFILE */ 205 { 206 struct rlimit rl; 207 rl.rlim_cur = rl.rlim_max = data->pair[1]; 208 if (setrlimit(RLIMIT_NOFILE, &rl) == -1) { 209 TT_DIE(("Can't change RLIMIT_NOFILE")); 210 } 211 } 212 213 event_base_loop(base, EVLOOP_ONCE); 214 215 /** with lock debugging, can fail on lock->count assertion */ 216 217 end: 218 if (listener) 219 evconnlistener_free(listener); 220 } 221 #endif 222 223 struct testcase_t listener_testcases[] = { 224 225 { "randport", regress_pick_a_port, TT_FORK|TT_NEED_BASE, 226 &basic_setup, NULL}, 227 228 { "randport_ts", regress_pick_a_port, TT_FORK|TT_NEED_BASE, 229 &basic_setup, (char*)"ts"}, 230 231 #ifdef EVENT__HAVE_SETRLIMIT 232 { "error_unlock", regress_listener_error_unlock, 233 TT_FORK|TT_NEED_BASE|TT_NEED_SOCKETPAIR, 234 &basic_setup, NULL}, 235 #endif 236 237 { "error", regress_listener_error, 238 TT_FORK|TT_NEED_BASE|TT_NEED_SOCKETPAIR, 239 &basic_setup, NULL}, 240 241 { "error_ts", regress_listener_error, 242 TT_FORK|TT_NEED_BASE|TT_NEED_SOCKETPAIR, 243 &basic_setup, (char*)"ts"}, 244 245 END_OF_TESTCASES, 246 }; 247 248 struct testcase_t listener_iocp_testcases[] = { 249 { "randport", regress_pick_a_port, 250 TT_FORK|TT_NEED_BASE|TT_ENABLE_IOCP, 251 &basic_setup, NULL}, 252 253 { "error", regress_listener_error, 254 TT_FORK|TT_NEED_BASE|TT_NEED_SOCKETPAIR|TT_ENABLE_IOCP, 255 &basic_setup, NULL}, 256 257 END_OF_TESTCASES, 258 }; 259
