src/mesh/test_mesh2_small.c

   1 /*
   2      This file is part of GNUnet.
   3      (C) 2011 Christian Grothoff (and other contributing authors)
   4
   5      GNUnet is free software; you can redistribute it and/or modify
   6      it under the terms of the GNU General Public License as published
   7      by the Free Software Foundation; either version 3, or (at your
   8      option) any later version.
   9
  10      GNUnet is distributed in the hope that it will be useful, but
  11      WITHOUT ANY WARRANTY; without even the implied warranty of
  12      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13      General Public License for more details.
  14
  15      You should have received a copy of the GNU General Public License
  16      along with GNUnet; see the file COPYING.  If not, write to the
  17      Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  18      Boston, MA 02111-1307, USA.
  19 */
  20 /**
  21  * @file mesh/test_mesh2_small.c
  22  *
  23  * @brief Test for the mesh service: retransmission of traffic.
  24  */
  25 #include <stdio.h>
  26 #include "platform.h"
  27 #include "mesh2_test_lib.h"
  28 #include "gnunet_mesh2_service.h"
  29 #include <gauger.h>
  30
  31
  32 /**
  33  * How namy messages to send
  34  */
  35 #define TOTAL_PACKETS 1000
  36
  37 /**
  38  * How long until we give up on connecting the peers?
  39  */
  40 #define TIMEOUT GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 120)
  41
  42 /**
  43  * Time to wait for stuff that should be rather fast
  44  */
  45 #define SHORT_TIME GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 20)
  46
  47 /**
  48  * DIFFERENT TESTS TO RUN
  49  */
  50 #define SETUP 0
  51 #define FORWARD 1
  52 #define SPEED 3
  53 #define SPEED_ACK 4
  54 #define SPEED_NOBUF 6
  55 #define P2P_SIGNAL 10
  56
  57 /**
  58  * Which test are we running?
  59  */
  60 static int test;
  61
  62 /**
  63  * String with test name
  64  */
  65 char *test_name;
  66
  67 /**
  68  * Flag to send traffic leaf->root in speed tests to test BCK_ACK logic.
  69  */
  70 static int test_backwards = GNUNET_NO;
  71
  72 /**
  73  * How many events have happened
  74  */
  75 static int ok;
  76
  77  /**
  78   * Each peer is supposed to generate the following callbacks:
  79   * 1 incoming tunnel (@dest)
  80   * 1 connected peer (@orig)
  81   * 1 received data packet (@dest)
  82   * 1 received data packet (@orig)
  83   * 1 received tunnel destroy (@dest)
  84   * _________________________________
  85   * 5 x ok expected per peer
  86   */
  87 int ok_goal;
  88
  89
  90 /**
  91  * Size of each test packet
  92  */
  93 size_t size_payload = sizeof (struct GNUNET_MessageHeader) + sizeof (uint32_t);
  94
  95 /**
  96  * Operation to get peer ids.
  97  */
  98 struct GNUNET_TESTBED_Operation *t_op[2];
  99
 100 /**
 101  * Peer ids.
 102  */
 103 struct GNUNET_PeerIdentity *p_id[2];
 104
 105 /**
 106  * Peer ids counter.
 107  */
 108 unsigned int p_ids;
 109
 110 /**
 111  * Is the setup initialized?
 112  */
 113 static int initialized;
 114
 115 /**
 116  * Peers that have been connected
 117  */
 118 static int peers_in_tunnel;
 119
 120 /**
 121  * Peers that have responded
 122  */
 123 static int peers_responded;
 124
 125 /**
 126  * Number of payload packes sent
 127  */
 128 static int data_sent;
 129
 130 /**
 131  * Number of payload packets received
 132  */
 133 static int data_received;
 134
 135 /**
 136  * Number of payload packed explicitly (app level) acknowledged
 137  */
 138 static int data_ack;
 139
 140 /**
 141  * Total number of currently running peers.
 142  */
 143 static unsigned long long peers_running;
 144
 145 /**
 146  * Test context (to shut down).
 147  */
 148 struct GNUNET_MESH_TEST_Context *test_ctx;
 149
 150 /**
 151  * Task called to disconnect peers.
 152  */
 153 static GNUNET_SCHEDULER_TaskIdentifier disconnect_task;
 154
 155 /**
 156  * Task To perform tests
 157  */
 158 static GNUNET_SCHEDULER_TaskIdentifier test_task;
 159
 160 /**
 161  * Task called to shutdown test.
 162  */
 163 static GNUNET_SCHEDULER_TaskIdentifier shutdown_handle;
 164
 165 /**
 166  * Mesh handle for the root peer
 167  */
 168 static struct GNUNET_MESH_Handle *h1;
 169
 170 /**
 171  * Mesh handle for the first leaf peer
 172  */
 173 static struct GNUNET_MESH_Handle *h2;
 174
 175 /**
 176  * Tunnel handle for the root peer
 177  */
 178 static struct GNUNET_MESH_Tunnel *t;
 179
 180 /**
 181  * Tunnel handle for the first leaf peer
 182  */
 183 static struct GNUNET_MESH_Tunnel *incoming_t;
 184
 185 /**
 186  * Time we started the data transmission (after tunnel has been established
 187  * and initilized).
 188  */
 189 static struct GNUNET_TIME_Absolute start_time;
 190
 191
 192 /**
 193  * Show the results of the test (banwidth acheived) and log them to GAUGER
 194  */
 195 static void
 196 show_end_data (void)
 197 {
 198   static struct GNUNET_TIME_Absolute end_time;
 199   static struct GNUNET_TIME_Relative total_time;
 200
 201   end_time = GNUNET_TIME_absolute_get();
 202   total_time = GNUNET_TIME_absolute_get_difference(start_time, end_time);
 203   FPRINTF (stderr, "\nResults of test \"%s\"\n", test_name);
 204   FPRINTF (stderr, "Test time %llu ms\n",
 205             (unsigned long long) total_time.rel_value);
 206   FPRINTF (stderr, "Test bandwidth: %f kb/s\n",
 207             4 * TOTAL_PACKETS * 1.0 / total_time.rel_value); // 4bytes * ms
 208   FPRINTF (stderr, "Test throughput: %f packets/s\n\n",
 209             TOTAL_PACKETS * 1000.0 / total_time.rel_value); // packets * ms
 210   GAUGER ("MESH", test_name,
 211           TOTAL_PACKETS * 1000.0 / total_time.rel_value,
 212           "packets/s");
 213 }
 214
 215
 216 /**
 217  * Shut down peergroup, clean up.
 218  *
 219  * @param cls Closure (unused).
 220  * @param tc Task Context.
 221  */
 222 static void
 223 shutdown_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
 224 {
 225   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Ending test.\n");
 226   shutdown_handle = GNUNET_SCHEDULER_NO_TASK;
 227 }
 228
 229
 230 /**
 231  * Disconnect from mesh services af all peers, call shutdown.
 232  *
 233  * @param cls Closure (unused).
 234  * @param tc Task Context.
 235  */
 236 static void
 237 disconnect_mesh_peers (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
 238 {
 239   long line = (long) cls;
 240   unsigned int i;
 241
 242   for (i = 0; i < 3; i++)
 243     if (NULL != t_op[i])
 244     {
 245       GNUNET_TESTBED_operation_done (t_op[i]);
 246       t_op[i] = NULL;
 247     }
 248   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 249               "disconnecting mesh service of peers, called from line %ld\n",
 250               line);
 251   disconnect_task = GNUNET_SCHEDULER_NO_TASK;
 252   if (NULL != t)
 253   {
 254     GNUNET_MESH_tunnel_destroy (t);
 255     t = NULL;
 256   }
 257   if (NULL != incoming_t)
 258   {
 259     GNUNET_MESH_tunnel_destroy (incoming_t);
 260     incoming_t = NULL;
 261   }
 262   GNUNET_MESH_TEST_cleanup (test_ctx);
 263   if (GNUNET_SCHEDULER_NO_TASK != shutdown_handle)
 264   {
 265     GNUNET_SCHEDULER_cancel (shutdown_handle);
 266   }
 267   shutdown_handle = GNUNET_SCHEDULER_add_now (&shutdown_task, NULL);
 268 }
 269
 270
 271 /**
 272  * Abort test: schedule disconnect and shutdown immediately
 273  *
 274  * @param line Line in the code the abort is requested from (__LINE__).
 275  */
 276 void
 277 abort_test (long line)
 278 {
 279   if (disconnect_task != GNUNET_SCHEDULER_NO_TASK)
 280   {
 281     GNUNET_SCHEDULER_cancel (disconnect_task);
 282   }
 283   disconnect_task = GNUNET_SCHEDULER_add_delayed (SHORT_TIME,
 284                                                   &disconnect_mesh_peers,
 285                                                   (void *) line);
 286 }
 287
 288 /**
 289  * Transmit ready callback.
 290  *
 291  * @param cls Closure (message type).
 292  * @param size Size of the tranmist buffer.
 293  * @param buf Pointer to the beginning of the buffer.
 294  *
 295  * @return Number of bytes written to buf.
 296  */
 297 static size_t
 298 tmt_rdy (void *cls, size_t size, void *buf);
 299
 300
 301 /**
 302  * Task to schedule a new data transmission.
 303  *
 304  * @param cls Closure (peer #).
 305  * @param tc Task Context.
 306  */
 307 static void
 308 data_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
 309 {
 310   struct GNUNET_MESH_TransmitHandle *th;
 311   struct GNUNET_MESH_Tunnel *tunnel;
 312
 313   if ((GNUNET_SCHEDULER_REASON_SHUTDOWN & tc->reason) != 0)
 314     return;
 315
 316   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Data task\n");
 317   if (GNUNET_YES == test_backwards)
 318   {
 319     tunnel = incoming_t;
 320   }
 321   else
 322   {
 323     tunnel = t;
 324   }
 325   th = GNUNET_MESH_notify_transmit_ready (tunnel, GNUNET_NO,
 326                                           GNUNET_TIME_UNIT_FOREVER_REL,
 327                                           size_payload, &tmt_rdy, (void *) 1L);
 328   if (NULL == th)
 329   {
 330     unsigned long i = (unsigned long) cls;
 331
 332     GNUNET_log (GNUNET_ERROR_TYPE_INFO, "Retransmission\n");
 333     if (0 == i)
 334     {
 335       GNUNET_log (GNUNET_ERROR_TYPE_INFO, "  in 1 ms\n");
 336       GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_MILLISECONDS,
 337                                     &data_task, (void *)1UL);
 338     }
 339     else
 340     {
 341       i++;
 342       GNUNET_log (GNUNET_ERROR_TYPE_INFO, "in %u ms\n", i);
 343       GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(
 344                                       GNUNET_TIME_UNIT_MILLISECONDS,
 345                                       i),
 346                                     &data_task, (void *)i);
 347     }
 348   }
 349 }
 350
 351
 352 /**
 353  * Transmit ready callback
 354  *
 355  * @param cls Closure (message type).
 356  * @param size Size of the buffer we have.
 357  * @param buf Buffer to copy data to.
 358  */
 359 size_t
 360 tmt_rdy (void *cls, size_t size, void *buf)
 361 {
 362   struct GNUNET_MessageHeader *msg = buf;
 363   uint32_t *data;
 364
 365   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 366               " tmt_rdy called\n");
 367   if (size < size_payload || NULL == buf)
 368   {
 369     GNUNET_break (0);
 370     GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
 371                 "size %u, buf %p, data_sent %u, data_received %u\n",
 372                 size,
 373                 buf,
 374                 data_sent,
 375                 data_received);
 376     return 0;
 377   }
 378   msg->size = htons (size);
 379   msg->type = htons ((long) cls);
 380   data = (uint32_t *) &msg[1];
 381   *data = htonl (data_sent);
 382   if (SPEED == test && GNUNET_YES == initialized)
 383   {
 384     data_sent++;
 385     GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 386               " Sent packet %d\n", data_sent);
 387     if (data_sent < TOTAL_PACKETS)
 388     {
 389       GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 390               " Scheduling packet %d\n", data_sent + 1);
 391       GNUNET_SCHEDULER_add_now(&data_task, NULL);
 392     }
 393   }
 394   return size_payload;
 395 }
 396
 397
 398 /**
 399  * Function is called whenever a message is received.
 400  *
 401  * @param cls closure (set from GNUNET_MESH_connect)
 402  * @param tunnel connection to the other end
 403  * @param tunnel_ctx place to store local state associated with the tunnel
 404  * @param sender who sent the message
 405  * @param message the actual message
 406  * @return GNUNET_OK to keep the connection open,
 407  *         GNUNET_SYSERR to close it (signal serious error)
 408  */
 409 int
 410 data_callback (void *cls, struct GNUNET_MESH_Tunnel *tunnel, void **tunnel_ctx,
 411                const struct GNUNET_PeerIdentity *sender,
 412                const struct GNUNET_MessageHeader *message)
 413 {
 414   long client = (long) cls;
 415   long expected_target_client;
 416   uint32_t *data;
 417
 418   ok++;
 419
 420   GNUNET_MESH_receive_done (tunnel);
 421
 422   if ((ok % 20) == 0)
 423   {
 424     if (GNUNET_SCHEDULER_NO_TASK != disconnect_task)
 425     {
 426       GNUNET_SCHEDULER_cancel (disconnect_task);
 427     }
 428     disconnect_task =
 429               GNUNET_SCHEDULER_add_delayed (SHORT_TIME, &disconnect_mesh_peers,
 430                                             (void *) __LINE__);
 431   }
 432
 433   switch (client)
 434   {
 435   case 0L:
 436     GNUNET_log (GNUNET_ERROR_TYPE_INFO, "Root client got a message!\n");
 437     peers_responded++;
 438     break;
 439   case 4L:
 440     GNUNET_log (GNUNET_ERROR_TYPE_INFO,
 441                 "Leaf client %li got a message.\n",
 442                 client);
 443     client = 4L;
 444     break;
 445   default:
 446     GNUNET_assert (0);
 447     break;
 448   }
 449   GNUNET_log (GNUNET_ERROR_TYPE_INFO, " ok: (%d/%d)\n", ok, ok_goal);
 450   data = (uint32_t *) &message[1];
 451   GNUNET_log (GNUNET_ERROR_TYPE_INFO, " payload: (%u)\n", ntohl (*data));
 452   if (SPEED == test && GNUNET_YES == test_backwards)
 453   {
 454     expected_target_client = 0L;
 455   }
 456   else
 457   {
 458     expected_target_client = 4L;
 459   }
 460
 461   if (GNUNET_NO == initialized)
 462   {
 463     initialized = GNUNET_YES;
 464     start_time = GNUNET_TIME_absolute_get ();
 465     if (SPEED == test)
 466     {
 467       GNUNET_assert (4L == client);
 468       GNUNET_SCHEDULER_add_now (&data_task, NULL);
 469       return GNUNET_OK;
 470     }
 471   }
 472
 473   if (client == expected_target_client) // Normally 3 or 4
 474   {
 475     data_received++;
 476     GNUNET_log (GNUNET_ERROR_TYPE_INFO,
 477                 " received data %u\n", data_received);
 478     if (SPEED != test || (ok_goal - 2) == ok)
 479     {
 480       GNUNET_MESH_notify_transmit_ready (tunnel, GNUNET_NO,
 481                                          GNUNET_TIME_UNIT_FOREVER_REL,
 482                                          size_payload, &tmt_rdy, (void *) 1L);
 483       return GNUNET_OK;
 484     }
 485     else
 486     {
 487       if (data_received < TOTAL_PACKETS)
 488         return GNUNET_OK;
 489     }
 490   }
 491   else // Normally 0
 492   {
 493     if (test == SPEED_ACK || test == SPEED)
 494     {
 495       data_ack++;
 496       GNUNET_log (GNUNET_ERROR_TYPE_INFO,
 497               " received ack %u\n", data_ack);
 498       GNUNET_MESH_notify_transmit_ready (tunnel, GNUNET_NO,
 499                                          GNUNET_TIME_UNIT_FOREVER_REL,
 500                                          size_payload, &tmt_rdy, (void *) 1L);
 501       if (data_ack < TOTAL_PACKETS && SPEED != test)
 502         return GNUNET_OK;
 503       if (ok == 2 && SPEED == test)
 504         return GNUNET_OK;
 505       show_end_data();
 506     }
 507     if (test == P2P_SIGNAL)
 508     {
 509       GNUNET_MESH_tunnel_destroy (incoming_t);
 510       incoming_t = NULL;
 511     }
 512     else
 513     {
 514       GNUNET_MESH_tunnel_destroy (t);
 515       t = NULL;
 516     }
 517   }
 518
 519   if (GNUNET_SCHEDULER_NO_TASK != disconnect_task)
 520   {
 521     GNUNET_SCHEDULER_cancel (disconnect_task);
 522   }
 523   disconnect_task =
 524         GNUNET_SCHEDULER_add_delayed (SHORT_TIME, &disconnect_mesh_peers,
 525                                       (void *) __LINE__);
 526
 527   return GNUNET_OK;
 528 }
 529
 530
 531 /**
 532  * Handlers, for diverse services
 533  */
 534 static struct GNUNET_MESH_MessageHandler handlers[] = {
 535   {&data_callback, 1, sizeof (struct GNUNET_MessageHeader)},
 536   {NULL, 0, 0}
 537 };
 538
 539
 540 /**
 541  * Method called whenever another peer has added us to a tunnel
 542  * the other peer initiated.
 543  *
 544  * @param cls Closure.
 545  * @param tunnel New handle to the tunnel.
 546  * @param initiator Peer that started the tunnel.
 547  * @param port Port this tunnels is connected to.
 548  * @return Initial tunnel context for the tunnel
 549  *         (can be NULL -- that's not an error).
 550  */
 551 static void *
 552 incoming_tunnel (void *cls, struct GNUNET_MESH_Tunnel *tunnel,
 553                  const struct GNUNET_PeerIdentity *initiator,
 554                  uint32_t port)
 555 {
 556   GNUNET_log (GNUNET_ERROR_TYPE_INFO,
 557               "Incoming tunnel from %s to peer %d\n",
 558               GNUNET_i2s (initiator), (long) cls);
 559   ok++;
 560   GNUNET_log (GNUNET_ERROR_TYPE_INFO, " ok: %d\n", ok);
 561   if ((long) cls == 4L)
 562     incoming_t = tunnel;
 563   else
 564   {
 565     GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
 566                 "Incoming tunnel for unknown client %lu\n", (long) cls);
 567     GNUNET_break(0);
 568   }
 569   if (GNUNET_SCHEDULER_NO_TASK != disconnect_task)
 570   {
 571     GNUNET_SCHEDULER_cancel (disconnect_task);
 572   }
 573   disconnect_task =
 574         GNUNET_SCHEDULER_add_delayed (SHORT_TIME, &disconnect_mesh_peers,
 575                                       (void *) __LINE__);
 576
 577   return NULL;
 578 }
 579
 580 /**
 581  * Function called whenever an inbound tunnel is destroyed.  Should clean up
 582  * any associated state.
 583  *
 584  * @param cls closure (set from GNUNET_MESH_connect)
 585  * @param tunnel connection to the other end (henceforth invalid)
 586  * @param tunnel_ctx place where local state associated
 587  *                   with the tunnel is stored
 588  */
 589 static void
 590 tunnel_cleaner (void *cls, const struct GNUNET_MESH_Tunnel *tunnel,
 591                 void *tunnel_ctx)
 592 {
 593   long i = (long) cls;
 594
 595   GNUNET_log (GNUNET_ERROR_TYPE_INFO,
 596               "Incoming tunnel disconnected at peer %d\n",
 597               i);
 598   if (4L == i)
 599   {
 600     ok++;
 601     incoming_t = NULL;
 602   }
 603   else if (0L == i && P2P_SIGNAL == test)
 604   {
 605     ok ++;
 606     if (GNUNET_SCHEDULER_NO_TASK != disconnect_task)
 607     {
 608       GNUNET_SCHEDULER_cancel (disconnect_task);
 609     }
 610     disconnect_task = GNUNET_SCHEDULER_add_now (&disconnect_mesh_peers,
 611                                                 (void *) __LINE__);
 612   }
 613   else
 614     GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
 615                 "Unknown peer! %d\n", i);
 616   GNUNET_log (GNUNET_ERROR_TYPE_INFO, " ok: %d\n", ok);
 617   peers_in_tunnel--;
 618   if (peers_in_tunnel > 0)
 619     return;
 620
 621   if (GNUNET_SCHEDULER_NO_TASK != disconnect_task)
 622   {
 623     GNUNET_SCHEDULER_cancel (disconnect_task);
 624   }
 625   disconnect_task = GNUNET_SCHEDULER_add_now (&disconnect_mesh_peers,
 626                                               (void *) __LINE__);
 627
 628   return;
 629 }
 630
 631
 632 /**
 633  * START THE TESTCASE ITSELF, AS WE ARE CONNECTED TO THE MESH SERVICES.
 634  *
 635  * Testcase continues when the root receives confirmation of connected peers,
 636  * on callback funtion ch.
 637  *
 638  * @param cls Closure (unsued).
 639  * @param tc Task Context.
 640  */
 641 static void
 642 do_test (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
 643 {
 644   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "test_task\n");
 645   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "add peer 2\n");
 646
 647   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 648               "schedule timeout in TIMEOUT\n");
 649   if (GNUNET_SCHEDULER_NO_TASK != disconnect_task)
 650   {
 651     GNUNET_SCHEDULER_cancel (disconnect_task);
 652   }
 653   t = GNUNET_MESH_tunnel_create (h1, NULL, p_id[1], 1);
 654   if (SPEED_NOBUF == test)
 655   {
 656     GNUNET_MESH_tunnel_buffer(t, GNUNET_NO);
 657     test = SPEED;
 658   }
 659
 660   disconnect_task =
 661       GNUNET_SCHEDULER_add_delayed (SHORT_TIME, &disconnect_mesh_peers,
 662                                     (void *) __LINE__);
 663   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 664               "Sending data initializer...\n");
 665   peers_responded = 0;
 666   data_ack = 0;
 667   data_received = 0;
 668   data_sent = 0;
 669   GNUNET_MESH_notify_transmit_ready (t, GNUNET_NO,
 670                                      GNUNET_TIME_UNIT_FOREVER_REL,
 671                                      size_payload, &tmt_rdy, (void *) 1L);
 672 }
 673
 674 /**
 675  * Callback to be called when the requested peer information is available
 676  *
 677  * @param cls the closure from GNUNET_TESTBED_peer_get_information()
 678  * @param op the operation this callback corresponds to
 679  * @param pinfo the result; will be NULL if the operation has failed
 680  * @param emsg error message if the operation has failed;
 681  *             NULL if the operation is successfull
 682  */
 683 static void
 684 pi_cb (void *cls,
 685        struct GNUNET_TESTBED_Operation *op,
 686        const struct GNUNET_TESTBED_PeerInformation *pinfo,
 687        const char *emsg)
 688 {
 689   long i = (long) cls;
 690
 691   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "id callback for %ld\n", i);
 692   if (NULL == pinfo || NULL != emsg)
 693   {
 694     GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "pi_cb: %s\n", emsg);
 695     abort_test (__LINE__);
 696     return;
 697   }
 698   p_id[i] = pinfo->result.id;
 699   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "  id: %s\n", GNUNET_i2s (p_id[i]));
 700   p_ids++;
 701   if (p_ids < 2)
 702     return;
 703   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Got all IDs, starting test\n");
 704   test_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_SECONDS,
 705                                             &do_test, NULL);
 706 }
 707
 708 /**
 709  * test main: start test when all peers are connected
 710  *
 711  * @param cls Closure.
 712  * @param ctx Argument to give to GNUNET_MESH_TEST_cleanup on test end.
 713  * @param num_peers Number of peers that are running.
 714  * @param peers Array of peers.
 715  * @param meshes Handle to each of the MESHs of the peers.
 716  */
 717 static void
 718 tmain (void *cls,
 719        struct GNUNET_MESH_TEST_Context *ctx,
 720        unsigned int num_peers,
 721        struct GNUNET_TESTBED_Peer **peers,
 722        struct GNUNET_MESH_Handle **meshes)
 723 {
 724   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "test main\n");
 725   ok = 0;
 726   test_ctx = ctx;
 727   peers_running = num_peers;
 728   h1 = meshes[0];
 729   h2 = meshes[num_peers - 1];
 730   peers_in_tunnel = 0;
 731   disconnect_task = GNUNET_SCHEDULER_add_delayed (SHORT_TIME,
 732                                                   &disconnect_mesh_peers,
 733                                                   (void *) __LINE__);
 734   shutdown_handle = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_FOREVER_REL,
 735                                                   &shutdown_task, NULL);
 736   t_op[0] = GNUNET_TESTBED_peer_get_information (peers[0],
 737                                                  GNUNET_TESTBED_PIT_IDENTITY,
 738                                                  &pi_cb, (void *) 0L);
 739   t_op[1] = GNUNET_TESTBED_peer_get_information (peers[num_peers - 1],
 740                                                  GNUNET_TESTBED_PIT_IDENTITY,
 741                                                  &pi_cb, (void *) 1L);
 742   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "requested peer ids\n");
 743 }
 744
 745
 746 /**
 747  * Main: start test
 748  */
 749 int
 750 main (int argc, char *argv[])
 751 {
 752   initialized = GNUNET_NO;
 753
 754   GNUNET_log_setup ("test", "DEBUG", NULL);
 755
 756   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Start\n");
 757   if (strstr (argv[0], "test_mesh2_small_forward") != NULL)
 758   {
 759     GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "FORWARD\n");
 760     test = FORWARD;
 761     test_name = "unicast";
 762     ok_goal = 4;
 763   }
 764   else if (strstr (argv[0], "test_mesh_small_signal") != NULL)
 765   {
 766     GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "SIGNAL\n");
 767     test = P2P_SIGNAL;
 768     test_name = "signal";
 769     ok_goal = 4;
 770   }
 771   else if (strstr (argv[0], "test_mesh_small_speed_ack") != NULL)
 772   {
 773    /* Each peer is supposed to generate the following callbacks:
 774     * 1 incoming tunnel (@dest)
 775     * TOTAL_PACKETS received data packet (@dest)
 776     * TOTAL_PACKETS received data packet (@orig)
 777     * 1 received tunnel destroy (@dest)
 778     * _________________________________
 779     * 5 x ok expected per peer
 780     */
 781     GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "SPEED_ACK\n");
 782     test = SPEED_ACK;
 783     test_name = "speed ack";
 784     ok_goal = TOTAL_PACKETS * 2 + 2;
 785   }
 786   else if (strstr (argv[0], "test_mesh_small_speed") != NULL)
 787   {
 788    /* Each peer is supposed to generate the following callbacks:
 789     * 1 incoming tunnel (@dest)
 790     * 1 initial packet (@dest)
 791     * TOTAL_PACKETS received data packet (@dest)
 792     * 1 received data packet (@orig)
 793     * 1 received tunnel destroy (@dest)
 794     * _________________________________
 795     */
 796     GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "SPEED\n");
 797     ok_goal = TOTAL_PACKETS + 4;
 798     if (strstr (argv[0], "_nobuf") != NULL)
 799     {
 800       test = SPEED_NOBUF;
 801       test_name = "speed nobuf";
 802     }
 803     else
 804     {
 805       test = SPEED;
 806       test_name = "speed";
 807     }
 808   }
 809   else
 810   {
 811     GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "UNKNOWN\n");
 812     test = SETUP;
 813     ok_goal = 0;
 814   }
 815
 816   if (strstr (argv[0], "backwards") != NULL)
 817   {
 818     char *aux;
 819
 820     GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "BACKWARDS (LEAF TO ROOT)\n");
 821     test_backwards = GNUNET_YES;
 822     aux = GNUNET_malloc (32);
 823     sprintf (aux, "backwards %s", test_name);
 824     test_name = aux;
 825   }
 826
 827   p_ids = 0;
 828   GNUNET_MESH_TEST_run ("test_mesh_small",
 829                         "test_mesh_small.conf",
 830                         5,
 831                         &tmain,
 832                         NULL,
 833                         &incoming_tunnel,
 834                         &tunnel_cleaner,
 835                         handlers,
 836                         NULL);
 837
 838   if (ok_goal > ok)
 839   {
 840     GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
 841                 "FAILED! (%d/%d)\n", ok, ok_goal);
 842     return 1;
 843   }
 844   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "success\n");
 845   return 0;
 846 }
 847
 848 /* end of test_mesh_small.c */