tests/test-io-channel-socket.c

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