1 /* 2 * QEMU I/O channel sockets test 3 * 4 * Copyright (c) 2015-2016 Red Hat, Inc. 5 * 6 * This library is free software; you can redistribute it and/or 7 * modify it under the terms of the GNU Lesser General Public 8 * License as published by the Free Software Foundation; either 9 * version 2.1 of the License, or (at your option) any later version. 10 * 11 * This library is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14 * Lesser General Public License for more details. 15 * 16 * You should have received a copy of the GNU Lesser General Public 17 * License along with this library; if not, see <http://www.gnu.org/licenses/>. 18 * 19 */ 20 21 #include "qemu/osdep.h" 22 #include "io/channel-socket.h" 23 #include "io/channel-util.h" 24 #include "io-channel-helpers.h" 25 #include "socket-helpers.h" 26 #include "qapi/error.h" 27 #include "qemu/module.h" 28 #include "qemu/main-loop.h" 29 30 31 static void test_io_channel_set_socket_bufs(QIOChannel *src, 32 QIOChannel *dst) 33 { 34 int buflen = 64 * 1024; 35 36 /* 37 * Make the socket buffers small so that we see 38 * the effects of partial reads/writes 39 */ 40 setsockopt(((QIOChannelSocket *)src)->fd, 41 SOL_SOCKET, SO_SNDBUF, 42 (char *)&buflen, 43 sizeof(buflen)); 44 45 setsockopt(((QIOChannelSocket *)dst)->fd, 46 SOL_SOCKET, SO_SNDBUF, 47 (char *)&buflen, 48 sizeof(buflen)); 49 } 50 51 52 static void test_io_channel_setup_sync(SocketAddress *listen_addr, 53 SocketAddress *connect_addr, 54 QIOChannel **srv, 55 QIOChannel **src, 56 QIOChannel **dst) 57 { 58 QIOChannelSocket *lioc; 59 60 lioc = qio_channel_socket_new(); 61 qio_channel_socket_listen_sync(lioc, listen_addr, 1, &error_abort); 62 63 if (listen_addr->type == SOCKET_ADDRESS_TYPE_INET) { 64 SocketAddress *laddr = qio_channel_socket_get_local_address( 65 lioc, &error_abort); 66 67 g_free(connect_addr->u.inet.port); 68 connect_addr->u.inet.port = g_strdup(laddr->u.inet.port); 69 70 qapi_free_SocketAddress(laddr); 71 } 72 73 *src = QIO_CHANNEL(qio_channel_socket_new()); 74 qio_channel_socket_connect_sync( 75 QIO_CHANNEL_SOCKET(*src), connect_addr, &error_abort); 76 qio_channel_set_delay(*src, false); 77 78 qio_channel_wait(QIO_CHANNEL(lioc), G_IO_IN); 79 *dst = QIO_CHANNEL(qio_channel_socket_accept(lioc, &error_abort)); 80 g_assert(*dst); 81 82 test_io_channel_set_socket_bufs(*src, *dst); 83 84 *srv = QIO_CHANNEL(lioc); 85 } 86 87 88 struct TestIOChannelData { 89 bool err; 90 GMainLoop *loop; 91 }; 92 93 94 static void test_io_channel_complete(QIOTask *task, 95 gpointer opaque) 96 { 97 struct TestIOChannelData *data = opaque; 98 data->err = qio_task_propagate_error(task, NULL); 99 g_main_loop_quit(data->loop); 100 } 101 102 103 static void test_io_channel_setup_async(SocketAddress *listen_addr, 104 SocketAddress *connect_addr, 105 QIOChannel **srv, 106 QIOChannel **src, 107 QIOChannel **dst) 108 { 109 QIOChannelSocket *lioc; 110 struct TestIOChannelData data; 111 112 data.loop = g_main_loop_new(g_main_context_default(), 113 TRUE); 114 115 lioc = qio_channel_socket_new(); 116 qio_channel_socket_listen_async( 117 lioc, listen_addr, 1, 118 test_io_channel_complete, &data, NULL, NULL); 119 120 g_main_loop_run(data.loop); 121 g_main_context_iteration(g_main_context_default(), FALSE); 122 123 g_assert(!data.err); 124 125 if (listen_addr->type == SOCKET_ADDRESS_TYPE_INET) { 126 SocketAddress *laddr = qio_channel_socket_get_local_address( 127 lioc, &error_abort); 128 129 g_free(connect_addr->u.inet.port); 130 connect_addr->u.inet.port = g_strdup(laddr->u.inet.port); 131 132 qapi_free_SocketAddress(laddr); 133 } 134 135 *src = QIO_CHANNEL(qio_channel_socket_new()); 136 137 qio_channel_socket_connect_async( 138 QIO_CHANNEL_SOCKET(*src), connect_addr, 139 test_io_channel_complete, &data, NULL, NULL); 140 141 g_main_loop_run(data.loop); 142 g_main_context_iteration(g_main_context_default(), FALSE); 143 144 g_assert(!data.err); 145 146 qio_channel_wait(QIO_CHANNEL(lioc), G_IO_IN); 147 *dst = QIO_CHANNEL(qio_channel_socket_accept(lioc, &error_abort)); 148 g_assert(*dst); 149 150 qio_channel_set_delay(*src, false); 151 test_io_channel_set_socket_bufs(*src, *dst); 152 153 *srv = QIO_CHANNEL(lioc); 154 155 g_main_loop_unref(data.loop); 156 } 157 158 159 static void test_io_channel_socket_path_exists(SocketAddress *addr, 160 bool expectExists) 161 { 162 if (addr->type != SOCKET_ADDRESS_TYPE_UNIX) { 163 return; 164 } 165 166 g_assert(g_file_test(addr->u.q_unix.path, 167 G_FILE_TEST_EXISTS) == expectExists); 168 } 169 170 171 static void test_io_channel(bool async, 172 SocketAddress *listen_addr, 173 SocketAddress *connect_addr, 174 bool passFD) 175 { 176 QIOChannel *src, *dst, *srv; 177 QIOChannelTest *test; 178 if (async) { 179 test_io_channel_setup_async(listen_addr, connect_addr, 180 &srv, &src, &dst); 181 182 g_assert(!passFD || 183 qio_channel_has_feature(src, QIO_CHANNEL_FEATURE_FD_PASS)); 184 g_assert(!passFD || 185 qio_channel_has_feature(dst, QIO_CHANNEL_FEATURE_FD_PASS)); 186 g_assert(qio_channel_has_feature(src, QIO_CHANNEL_FEATURE_SHUTDOWN)); 187 g_assert(qio_channel_has_feature(dst, QIO_CHANNEL_FEATURE_SHUTDOWN)); 188 189 test_io_channel_socket_path_exists(listen_addr, true); 190 191 test = qio_channel_test_new(); 192 qio_channel_test_run_threads(test, true, src, dst); 193 qio_channel_test_validate(test); 194 195 test_io_channel_socket_path_exists(listen_addr, true); 196 197 /* unref without close, to ensure finalize() cleans up */ 198 199 object_unref(OBJECT(src)); 200 object_unref(OBJECT(dst)); 201 test_io_channel_socket_path_exists(listen_addr, true); 202 203 object_unref(OBJECT(srv)); 204 test_io_channel_socket_path_exists(listen_addr, false); 205 206 test_io_channel_setup_async(listen_addr, connect_addr, 207 &srv, &src, &dst); 208 209 g_assert(!passFD || 210 qio_channel_has_feature(src, QIO_CHANNEL_FEATURE_FD_PASS)); 211 g_assert(!passFD || 212 qio_channel_has_feature(dst, QIO_CHANNEL_FEATURE_FD_PASS)); 213 g_assert(qio_channel_has_feature(src, QIO_CHANNEL_FEATURE_SHUTDOWN)); 214 g_assert(qio_channel_has_feature(dst, QIO_CHANNEL_FEATURE_SHUTDOWN)); 215 216 test = qio_channel_test_new(); 217 qio_channel_test_run_threads(test, false, src, dst); 218 qio_channel_test_validate(test); 219 220 /* close before unref, to ensure finalize copes with already closed */ 221 222 qio_channel_close(src, &error_abort); 223 qio_channel_close(dst, &error_abort); 224 test_io_channel_socket_path_exists(listen_addr, true); 225 226 object_unref(OBJECT(src)); 227 object_unref(OBJECT(dst)); 228 test_io_channel_socket_path_exists(listen_addr, true); 229 230 qio_channel_close(srv, &error_abort); 231 test_io_channel_socket_path_exists(listen_addr, false); 232 233 object_unref(OBJECT(srv)); 234 test_io_channel_socket_path_exists(listen_addr, false); 235 } else { 236 test_io_channel_setup_sync(listen_addr, connect_addr, 237 &srv, &src, &dst); 238 239 g_assert(!passFD || 240 qio_channel_has_feature(src, QIO_CHANNEL_FEATURE_FD_PASS)); 241 g_assert(!passFD || 242 qio_channel_has_feature(dst, QIO_CHANNEL_FEATURE_FD_PASS)); 243 g_assert(qio_channel_has_feature(src, QIO_CHANNEL_FEATURE_SHUTDOWN)); 244 g_assert(qio_channel_has_feature(dst, QIO_CHANNEL_FEATURE_SHUTDOWN)); 245 246 test_io_channel_socket_path_exists(listen_addr, true); 247 248 test = qio_channel_test_new(); 249 qio_channel_test_run_threads(test, true, src, dst); 250 qio_channel_test_validate(test); 251 252 test_io_channel_socket_path_exists(listen_addr, true); 253 254 /* unref without close, to ensure finalize() cleans up */ 255 256 object_unref(OBJECT(src)); 257 object_unref(OBJECT(dst)); 258 test_io_channel_socket_path_exists(listen_addr, true); 259 260 object_unref(OBJECT(srv)); 261 test_io_channel_socket_path_exists(listen_addr, false); 262 263 test_io_channel_setup_sync(listen_addr, connect_addr, 264 &srv, &src, &dst); 265 266 g_assert(!passFD || 267 qio_channel_has_feature(src, QIO_CHANNEL_FEATURE_FD_PASS)); 268 g_assert(!passFD || 269 qio_channel_has_feature(dst, QIO_CHANNEL_FEATURE_FD_PASS)); 270 g_assert(qio_channel_has_feature(src, QIO_CHANNEL_FEATURE_SHUTDOWN)); 271 g_assert(qio_channel_has_feature(dst, QIO_CHANNEL_FEATURE_SHUTDOWN)); 272 273 test = qio_channel_test_new(); 274 qio_channel_test_run_threads(test, false, src, dst); 275 qio_channel_test_validate(test); 276 277 test_io_channel_socket_path_exists(listen_addr, true); 278 279 /* close before unref, to ensure finalize copes with already closed */ 280 281 qio_channel_close(src, &error_abort); 282 qio_channel_close(dst, &error_abort); 283 test_io_channel_socket_path_exists(listen_addr, true); 284 285 object_unref(OBJECT(src)); 286 object_unref(OBJECT(dst)); 287 test_io_channel_socket_path_exists(listen_addr, true); 288 289 qio_channel_close(srv, &error_abort); 290 test_io_channel_socket_path_exists(listen_addr, false); 291 292 object_unref(OBJECT(srv)); 293 test_io_channel_socket_path_exists(listen_addr, false); 294 } 295 } 296 297 298 static void test_io_channel_ipv4(bool async) 299 { 300 SocketAddress *listen_addr = g_new0(SocketAddress, 1); 301 SocketAddress *connect_addr = g_new0(SocketAddress, 1); 302 303 listen_addr->type = SOCKET_ADDRESS_TYPE_INET; 304 listen_addr->u.inet = (InetSocketAddress) { 305 .host = g_strdup("127.0.0.1"), 306 .port = NULL, /* Auto-select */ 307 }; 308 309 connect_addr->type = SOCKET_ADDRESS_TYPE_INET; 310 connect_addr->u.inet = (InetSocketAddress) { 311 .host = g_strdup("127.0.0.1"), 312 .port = NULL, /* Filled in later */ 313 }; 314 315 test_io_channel(async, listen_addr, connect_addr, false); 316 317 qapi_free_SocketAddress(listen_addr); 318 qapi_free_SocketAddress(connect_addr); 319 } 320 321 322 static void test_io_channel_ipv4_sync(void) 323 { 324 return test_io_channel_ipv4(false); 325 } 326 327 328 static void test_io_channel_ipv4_async(void) 329 { 330 return test_io_channel_ipv4(true); 331 } 332 333 334 static void test_io_channel_ipv6(bool async) 335 { 336 SocketAddress *listen_addr = g_new0(SocketAddress, 1); 337 SocketAddress *connect_addr = g_new0(SocketAddress, 1); 338 339 listen_addr->type = SOCKET_ADDRESS_TYPE_INET; 340 listen_addr->u.inet = (InetSocketAddress) { 341 .host = g_strdup("::1"), 342 .port = NULL, /* Auto-select */ 343 }; 344 345 connect_addr->type = SOCKET_ADDRESS_TYPE_INET; 346 connect_addr->u.inet = (InetSocketAddress) { 347 .host = g_strdup("::1"), 348 .port = NULL, /* Filled in later */ 349 }; 350 351 test_io_channel(async, listen_addr, connect_addr, false); 352 353 qapi_free_SocketAddress(listen_addr); 354 qapi_free_SocketAddress(connect_addr); 355 } 356 357 358 static void test_io_channel_ipv6_sync(void) 359 { 360 return test_io_channel_ipv6(false); 361 } 362 363 364 static void test_io_channel_ipv6_async(void) 365 { 366 return test_io_channel_ipv6(true); 367 } 368 369 370 #ifndef _WIN32 371 static void test_io_channel_unix(bool async) 372 { 373 SocketAddress *listen_addr = g_new0(SocketAddress, 1); 374 SocketAddress *connect_addr = g_new0(SocketAddress, 1); 375 376 #define TEST_SOCKET "test-io-channel-socket.sock" 377 listen_addr->type = SOCKET_ADDRESS_TYPE_UNIX; 378 listen_addr->u.q_unix.path = g_strdup(TEST_SOCKET); 379 380 connect_addr->type = SOCKET_ADDRESS_TYPE_UNIX; 381 connect_addr->u.q_unix.path = g_strdup(TEST_SOCKET); 382 383 test_io_channel(async, listen_addr, connect_addr, true); 384 385 qapi_free_SocketAddress(listen_addr); 386 qapi_free_SocketAddress(connect_addr); 387 } 388 389 390 static void test_io_channel_unix_sync(void) 391 { 392 return test_io_channel_unix(false); 393 } 394 395 396 static void test_io_channel_unix_async(void) 397 { 398 return test_io_channel_unix(true); 399 } 400 401 static void test_io_channel_unix_fd_pass(void) 402 { 403 SocketAddress *listen_addr = g_new0(SocketAddress, 1); 404 SocketAddress *connect_addr = g_new0(SocketAddress, 1); 405 QIOChannel *src, *dst, *srv; 406 int testfd; 407 int fdsend[3]; 408 int *fdrecv = NULL; 409 size_t nfdrecv = 0; 410 size_t i; 411 char bufsend[12], bufrecv[12]; 412 struct iovec iosend[1], iorecv[1]; 413 414 #define TEST_SOCKET "test-io-channel-socket.sock" 415 #define TEST_FILE "test-io-channel-socket.txt" 416 417 testfd = open(TEST_FILE, O_RDWR|O_TRUNC|O_CREAT, 0700); 418 g_assert(testfd != -1); 419 fdsend[0] = testfd; 420 fdsend[1] = testfd; 421 fdsend[2] = testfd; 422 423 listen_addr->type = SOCKET_ADDRESS_TYPE_UNIX; 424 listen_addr->u.q_unix.path = g_strdup(TEST_SOCKET); 425 426 connect_addr->type = SOCKET_ADDRESS_TYPE_UNIX; 427 connect_addr->u.q_unix.path = g_strdup(TEST_SOCKET); 428 429 test_io_channel_setup_sync(listen_addr, connect_addr, &srv, &src, &dst); 430 431 memcpy(bufsend, "Hello World", G_N_ELEMENTS(bufsend)); 432 433 iosend[0].iov_base = bufsend; 434 iosend[0].iov_len = G_N_ELEMENTS(bufsend); 435 436 iorecv[0].iov_base = bufrecv; 437 iorecv[0].iov_len = G_N_ELEMENTS(bufrecv); 438 439 g_assert(qio_channel_has_feature(src, QIO_CHANNEL_FEATURE_FD_PASS)); 440 g_assert(qio_channel_has_feature(dst, QIO_CHANNEL_FEATURE_FD_PASS)); 441 442 qio_channel_writev_full(src, 443 iosend, 444 G_N_ELEMENTS(iosend), 445 fdsend, 446 G_N_ELEMENTS(fdsend), 447 0, 448 &error_abort); 449 450 qio_channel_readv_full(dst, 451 iorecv, 452 G_N_ELEMENTS(iorecv), 453 &fdrecv, 454 &nfdrecv, 455 &error_abort); 456 457 g_assert(nfdrecv == G_N_ELEMENTS(fdsend)); 458 /* Each recvd FD should be different from sent FD */ 459 for (i = 0; i < nfdrecv; i++) { 460 g_assert_cmpint(fdrecv[i], !=, testfd); 461 } 462 /* Each recvd FD should be different from each other */ 463 g_assert_cmpint(fdrecv[0], !=, fdrecv[1]); 464 g_assert_cmpint(fdrecv[0], !=, fdrecv[2]); 465 g_assert_cmpint(fdrecv[1], !=, fdrecv[2]); 466 467 /* Check the I/O buf we sent at the same time matches */ 468 g_assert(memcmp(bufsend, bufrecv, G_N_ELEMENTS(bufsend)) == 0); 469 470 /* Write some data into the FD we received */ 471 g_assert(write(fdrecv[0], bufsend, G_N_ELEMENTS(bufsend)) == 472 G_N_ELEMENTS(bufsend)); 473 474 /* Read data from the original FD and make sure it matches */ 475 memset(bufrecv, 0, G_N_ELEMENTS(bufrecv)); 476 g_assert(lseek(testfd, 0, SEEK_SET) == 0); 477 g_assert(read(testfd, bufrecv, G_N_ELEMENTS(bufrecv)) == 478 G_N_ELEMENTS(bufrecv)); 479 g_assert(memcmp(bufsend, bufrecv, G_N_ELEMENTS(bufsend)) == 0); 480 481 object_unref(OBJECT(src)); 482 object_unref(OBJECT(dst)); 483 object_unref(OBJECT(srv)); 484 qapi_free_SocketAddress(listen_addr); 485 qapi_free_SocketAddress(connect_addr); 486 unlink(TEST_SOCKET); 487 unlink(TEST_FILE); 488 close(testfd); 489 for (i = 0; i < nfdrecv; i++) { 490 close(fdrecv[i]); 491 } 492 g_free(fdrecv); 493 } 494 495 static void test_io_channel_unix_listen_cleanup(void) 496 { 497 QIOChannelSocket *ioc; 498 struct sockaddr_un un; 499 int sock; 500 501 #define TEST_SOCKET "test-io-channel-socket.sock" 502 503 ioc = qio_channel_socket_new(); 504 505 /* Manually bind ioc without calling the qio api to avoid setting 506 * the LISTEN feature */ 507 sock = qemu_socket(PF_UNIX, SOCK_STREAM, 0); 508 memset(&un, 0, sizeof(un)); 509 un.sun_family = AF_UNIX; 510 snprintf(un.sun_path, sizeof(un.sun_path), "%s", TEST_SOCKET); 511 unlink(TEST_SOCKET); 512 bind(sock, (struct sockaddr *)&un, sizeof(un)); 513 ioc->fd = sock; 514 ioc->localAddrLen = sizeof(ioc->localAddr); 515 getsockname(sock, (struct sockaddr *)&ioc->localAddr, 516 &ioc->localAddrLen); 517 518 g_assert(g_file_test(TEST_SOCKET, G_FILE_TEST_EXISTS)); 519 object_unref(OBJECT(ioc)); 520 g_assert(g_file_test(TEST_SOCKET, G_FILE_TEST_EXISTS)); 521 522 unlink(TEST_SOCKET); 523 } 524 525 #endif /* _WIN32 */ 526 527 528 static void test_io_channel_ipv4_fd(void) 529 { 530 QIOChannel *ioc; 531 int fd = -1; 532 struct sockaddr_in sa = { 533 .sin_family = AF_INET, 534 .sin_addr = { 535 .s_addr = htonl(INADDR_LOOPBACK), 536 } 537 /* Leave port unset for auto-assign */ 538 }; 539 socklen_t salen = sizeof(sa); 540 541 fd = socket(AF_INET, SOCK_STREAM, 0); 542 g_assert_cmpint(fd, >, -1); 543 544 g_assert_cmpint(bind(fd, (struct sockaddr *)&sa, salen), ==, 0); 545 546 ioc = qio_channel_new_fd(fd, &error_abort); 547 548 g_assert_cmpstr(object_get_typename(OBJECT(ioc)), 549 ==, 550 TYPE_QIO_CHANNEL_SOCKET); 551 552 object_unref(OBJECT(ioc)); 553 } 554 555 556 int main(int argc, char **argv) 557 { 558 bool has_ipv4, has_ipv6; 559 560 module_call_init(MODULE_INIT_QOM); 561 qemu_init_main_loop(&error_abort); 562 socket_init(); 563 564 g_test_init(&argc, &argv, NULL); 565 566 /* We're creating actual IPv4/6 sockets, so we should 567 * check if the host running tests actually supports 568 * each protocol to avoid breaking tests on machines 569 * with either IPv4 or IPv6 disabled. 570 */ 571 if (socket_check_protocol_support(&has_ipv4, &has_ipv6) < 0) { 572 g_printerr("socket_check_protocol_support() failed\n"); 573 goto end; 574 } 575 576 if (has_ipv4) { 577 g_test_add_func("/io/channel/socket/ipv4-sync", 578 test_io_channel_ipv4_sync); 579 g_test_add_func("/io/channel/socket/ipv4-async", 580 test_io_channel_ipv4_async); 581 g_test_add_func("/io/channel/socket/ipv4-fd", 582 test_io_channel_ipv4_fd); 583 } 584 if (has_ipv6) { 585 g_test_add_func("/io/channel/socket/ipv6-sync", 586 test_io_channel_ipv6_sync); 587 g_test_add_func("/io/channel/socket/ipv6-async", 588 test_io_channel_ipv6_async); 589 } 590 591 #ifndef _WIN32 592 g_test_add_func("/io/channel/socket/unix-sync", 593 test_io_channel_unix_sync); 594 g_test_add_func("/io/channel/socket/unix-async", 595 test_io_channel_unix_async); 596 g_test_add_func("/io/channel/socket/unix-fd-pass", 597 test_io_channel_unix_fd_pass); 598 g_test_add_func("/io/channel/socket/unix-listen-cleanup", 599 test_io_channel_unix_listen_cleanup); 600 #endif /* _WIN32 */ 601 602 end: 603 return g_test_run(); 604 } 605