src/mesh/test_mesh_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_mesh_small.c
  22  *
  23  * @brief Test for the mesh service: retransmission of traffic.
  24  */
  25 #include <stdio.h>
  26 #include "platform.h"
  27 #include "mesh_test_lib.h"
  28 #include "gnunet_mesh_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, 60)
  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 SPEED_REL 8
  56 #define P2P_SIGNAL 10
  57
  58 /**
  59  * Which test are we running?
  60  */
  61 static int test;
  62
  63 /**
  64  * String with test name
  65  */
  66 char *test_name;
  67
  68 /**
  69  * Flag to send traffic leaf->root in speed tests to test BCK_ACK logic.
  70  */
  71 static int test_backwards = GNUNET_NO;
  72
  73 /**
  74  * How many events have happened
  75  */
  76 static int ok;
  77
  78  /**
  79   * Each peer is supposed to generate the following callbacks:
  80   * 1 incoming tunnel (@dest)
  81   * 1 connected peer (@orig)
  82   * 1 received data packet (@dest)
  83   * 1 received data packet (@orig)
  84   * 1 received tunnel destroy (@dest)
  85   * _________________________________
  86   * 5 x ok expected per peer
  87   */
  88 int ok_goal;
  89
  90
  91 /**
  92  * Size of each test packet
  93  */
  94 size_t size_payload = sizeof (struct GNUNET_MessageHeader) + sizeof (uint32_t);
  95
  96 /**
  97  * Operation to get peer ids.
  98  */
  99 struct GNUNET_TESTBED_Operation *t_op[2];
 100
 101 /**
 102  * Peer ids.
 103  */
 104 struct GNUNET_PeerIdentity *p_id[2];
 105
 106 /**
 107  * Peer ids counter.
 108  */
 109 unsigned int p_ids;
 110
 111 /**
 112  * Is the setup initialized?
 113  */
 114 static int initialized;
 115
 116 /**
 117  * Number of payload packes sent
 118  */
 119 static int data_sent;
 120
 121 /**
 122  * Number of payload packets received
 123  */
 124 static int data_received;
 125
 126 /**
 127  * Number of payload packed explicitly (app level) acknowledged
 128  */
 129 static int data_ack;
 130
 131 /**
 132  * Total number of currently running peers.
 133  */
 134 static unsigned long long peers_running;
 135
 136 /**
 137  * Test context (to shut down).
 138  */
 139 struct GNUNET_MESH_TEST_Context *test_ctx;
 140
 141 /**
 142  * Task called to disconnect peers.
 143  */
 144 static GNUNET_SCHEDULER_TaskIdentifier disconnect_task;
 145
 146 /**
 147  * Task To perform tests
 148  */
 149 static GNUNET_SCHEDULER_TaskIdentifier test_task;
 150
 151 /**
 152  * Task called to shutdown test.
 153  */
 154 static GNUNET_SCHEDULER_TaskIdentifier shutdown_handle;
 155
 156 /**
 157  * Mesh handle for the root peer
 158  */
 159 static struct GNUNET_MESH_Handle *h1;
 160
 161 /**
 162  * Mesh handle for the first leaf peer
 163  */
 164 static struct GNUNET_MESH_Handle *h2;
 165
 166 /**
 167  * Tunnel handle for the root peer
 168  */
 169 static struct GNUNET_MESH_Tunnel *t;
 170
 171 /**
 172  * Tunnel handle for the first leaf peer
 173  */
 174 static struct GNUNET_MESH_Tunnel *incoming_t;
 175
 176 /**
 177  * Time we started the data transmission (after tunnel has been established
 178  * and initilized).
 179  */
 180 static struct GNUNET_TIME_Absolute start_time;
 181
 182
 183 /**
 184  * Show the results of the test (banwidth acheived) and log them to GAUGER
 185  */
 186 static void
 187 show_end_data (void)
 188 {
 189   static struct GNUNET_TIME_Absolute end_time;
 190   static struct GNUNET_TIME_Relative total_time;
 191
 192   end_time = GNUNET_TIME_absolute_get();
 193   total_time = GNUNET_TIME_absolute_get_difference(start_time, end_time);
 194   FPRINTF (stderr, "\nResults of test \"%s\"\n", test_name);
 195   FPRINTF (stderr, "Test time %s\n",
 196            GNUNET_STRINGS_relative_time_to_string (total_time,
 197                                                    GNUNET_YES));
 198   FPRINTF (stderr, "Test bandwidth: %f kb/s\n",
 199            4 * TOTAL_PACKETS * 1.0 / (total_time.rel_value_us / 1000)); // 4bytes * ms
 200   FPRINTF (stderr, "Test throughput: %f packets/s\n\n",
 201            TOTAL_PACKETS * 1000.0 / (total_time.rel_value_us / 1000)); // packets * ms
 202   GAUGER ("MESH", test_name,
 203           TOTAL_PACKETS * 1000.0 / (total_time.rel_value_us / 1000),
 204           "packets/s");
 205 }
 206
 207
 208 /**
 209  * Shut down peergroup, clean up.
 210  *
 211  * @param cls Closure (unused).
 212  * @param tc Task Context.
 213  */
 214 static void
 215 shutdown_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
 216 {
 217   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Ending test.\n");
 218   shutdown_handle = GNUNET_SCHEDULER_NO_TASK;
 219 }
 220
 221
 222 /**
 223  * Disconnect from mesh services af all peers, call shutdown.
 224  *
 225  * @param cls Closure (unused).
 226  * @param tc Task Context.
 227  */
 228 static void
 229 disconnect_mesh_peers (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
 230 {
 231   long line = (long) cls;
 232   unsigned int i;
 233
 234   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 235               "disconnecting mesh service of peers, called from line %ld\n",
 236               line);
 237   disconnect_task = GNUNET_SCHEDULER_NO_TASK;
 238   for (i = 0; i < 2; i++)
 239   {
 240     GNUNET_TESTBED_operation_done (t_op[i]);
 241   }
 242   if (NULL != t)
 243   {
 244     GNUNET_MESH_tunnel_destroy (t);
 245     t = NULL;
 246   }
 247   if (NULL != incoming_t)
 248   {
 249     GNUNET_MESH_tunnel_destroy (incoming_t);
 250     incoming_t = NULL;
 251   }
 252   GNUNET_MESH_TEST_cleanup (test_ctx);
 253   if (GNUNET_SCHEDULER_NO_TASK != shutdown_handle)
 254   {
 255     GNUNET_SCHEDULER_cancel (shutdown_handle);
 256   }
 257   shutdown_handle = GNUNET_SCHEDULER_add_now (&shutdown_task, NULL);
 258 }
 259
 260
 261 /**
 262  * Abort test: schedule disconnect and shutdown immediately
 263  *
 264  * @param line Line in the code the abort is requested from (__LINE__).
 265  */
 266 static void
 267 abort_test (long line)
 268 {
 269   if (disconnect_task != GNUNET_SCHEDULER_NO_TASK)
 270   {
 271     GNUNET_SCHEDULER_cancel (disconnect_task);
 272     disconnect_task = GNUNET_SCHEDULER_add_now (&disconnect_mesh_peers,
 273                                                 (void *) line);
 274   }
 275 }
 276
 277 /**
 278  * Transmit ready callback.
 279  *
 280  * @param cls Closure (message type).
 281  * @param size Size of the tranmist buffer.
 282  * @param buf Pointer to the beginning of the buffer.
 283  *
 284  * @return Number of bytes written to buf.
 285  */
 286 static size_t
 287 tmt_rdy (void *cls, size_t size, void *buf);
 288
 289
 290 /**
 291  * Task to schedule a new data transmission.
 292  *
 293  * @param cls Closure (peer #).
 294  * @param tc Task Context.
 295  */
 296 static void
 297 data_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
 298 {
 299   struct GNUNET_MESH_TransmitHandle *th;
 300   struct GNUNET_MESH_Tunnel *tunnel;
 301
 302   if ((GNUNET_SCHEDULER_REASON_SHUTDOWN & tc->reason) != 0)
 303     return;
 304
 305   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Data task\n");
 306   if (GNUNET_YES == test_backwards)
 307   {
 308     tunnel = incoming_t;
 309   }
 310   else
 311   {
 312     tunnel = t;
 313   }
 314   th = GNUNET_MESH_notify_transmit_ready (tunnel, GNUNET_NO,
 315                                           GNUNET_TIME_UNIT_FOREVER_REL,
 316                                           size_payload, &tmt_rdy, (void *) 1L);
 317   if (NULL == th)
 318   {
 319     unsigned long i = (unsigned long) cls;
 320
 321     GNUNET_log (GNUNET_ERROR_TYPE_INFO, "Retransmission\n");
 322     if (0 == i)
 323     {
 324       GNUNET_log (GNUNET_ERROR_TYPE_INFO, "  in 1 ms\n");
 325       GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_MILLISECONDS,
 326                                     &data_task, (void *)1UL);
 327     }
 328     else
 329     {
 330       i++;
 331       GNUNET_log (GNUNET_ERROR_TYPE_INFO, "in %u ms\n", i);
 332       GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(
 333                                       GNUNET_TIME_UNIT_MILLISECONDS,
 334                                       i),
 335                                     &data_task, (void *)i);
 336     }
 337   }
 338 }
 339
 340
 341 /**
 342  * Transmit ready callback
 343  *
 344  * @param cls Closure (message type).
 345  * @param size Size of the buffer we have.
 346  * @param buf Buffer to copy data to.
 347  */
 348 size_t
 349 tmt_rdy (void *cls, size_t size, void *buf)
 350 {
 351   struct GNUNET_MessageHeader *msg = buf;
 352   uint32_t *data;
 353
 354   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 355               " tmt_rdy called\n");
 356   if (size < size_payload || NULL == buf)
 357   {
 358     GNUNET_break (0);
 359     GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
 360                 "size %u, buf %p, data_sent %u, data_received %u\n",
 361                 size,
 362                 buf,
 363                 data_sent,
 364                 data_received);
 365     return 0;
 366   }
 367   msg->size = htons (size);
 368   msg->type = htons ((long) cls);
 369   data = (uint32_t *) &msg[1];
 370   *data = htonl (data_sent);
 371   if (SPEED == test && GNUNET_YES == initialized)
 372   {
 373     data_sent++;
 374     GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 375               " Sent packet %d\n", data_sent);
 376     if (data_sent < TOTAL_PACKETS)
 377     {
 378       GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 379               " Scheduling packet %d\n", data_sent + 1);
 380       GNUNET_SCHEDULER_add_now(&data_task, NULL);
 381     }
 382   }
 383   return size_payload;
 384 }
 385
 386
 387 /**
 388  * Function is called whenever a message is received.
 389  *
 390  * @param cls closure (set from GNUNET_MESH_connect)
 391  * @param tunnel connection to the other end
 392  * @param tunnel_ctx place to store local state associated with the tunnel
 393  * @param message the actual message
 394  * @return GNUNET_OK to keep the connection open,
 395  *         GNUNET_SYSERR to close it (signal serious error)
 396  */
 397 int
 398 data_callback (void *cls, struct GNUNET_MESH_Tunnel *tunnel, void **tunnel_ctx,
 399                const struct GNUNET_MessageHeader *message)
 400 {
 401   long client = (long) cls;
 402   long expected_target_client;
 403   uint32_t *data;
 404
 405   ok++;
 406
 407   GNUNET_MESH_receive_done (tunnel);
 408
 409   if ((ok % 20) == 0)
 410   {
 411     if (GNUNET_SCHEDULER_NO_TASK != disconnect_task)
 412     {
 413       GNUNET_SCHEDULER_cancel (disconnect_task);
 414       disconnect_task = GNUNET_SCHEDULER_add_delayed (SHORT_TIME,
 415                                                       &disconnect_mesh_peers,
 416                                                       (void *) __LINE__);
 417     }
 418   }
 419
 420   switch (client)
 421   {
 422   case 0L:
 423     GNUNET_log (GNUNET_ERROR_TYPE_INFO, "Root client got a message!\n");
 424     break;
 425   case 4L:
 426     GNUNET_log (GNUNET_ERROR_TYPE_INFO,
 427                 "Leaf client %li got a message.\n",
 428                 client);
 429     break;
 430   default:
 431     GNUNET_assert (0);
 432     break;
 433   }
 434   GNUNET_log (GNUNET_ERROR_TYPE_INFO, " ok: (%d/%d)\n", ok, ok_goal);
 435   data = (uint32_t *) &message[1];
 436   GNUNET_log (GNUNET_ERROR_TYPE_INFO, " payload: (%u)\n", ntohl (*data));
 437   if (SPEED == test && GNUNET_YES == test_backwards)
 438   {
 439     expected_target_client = 0L;
 440   }
 441   else
 442   {
 443     expected_target_client = 4L;
 444   }
 445
 446   if (GNUNET_NO == initialized)
 447   {
 448     initialized = GNUNET_YES;
 449     start_time = GNUNET_TIME_absolute_get ();
 450     if (SPEED == test)
 451     {
 452       GNUNET_assert (4L == client);
 453       GNUNET_SCHEDULER_add_now (&data_task, NULL);
 454       return GNUNET_OK;
 455     }
 456   }
 457
 458   if (client == expected_target_client) // Normally 4
 459   {
 460     data_received++;
 461     GNUNET_log (GNUNET_ERROR_TYPE_INFO,
 462                 " received data %u\n", data_received);
 463     if (SPEED != test || (ok_goal - 2) == ok)
 464     {
 465       GNUNET_MESH_notify_transmit_ready (tunnel, GNUNET_NO,
 466                                          GNUNET_TIME_UNIT_FOREVER_REL,
 467                                          size_payload, &tmt_rdy, (void *) 1L);
 468       return GNUNET_OK;
 469     }
 470     else
 471     {
 472       if (data_received < TOTAL_PACKETS)
 473         return GNUNET_OK;
 474     }
 475   }
 476   else // Normally 0
 477   {
 478     if (test == SPEED_ACK || test == SPEED)
 479     {
 480       data_ack++;
 481       GNUNET_log (GNUNET_ERROR_TYPE_INFO,
 482               " received ack %u\n", data_ack);
 483       GNUNET_MESH_notify_transmit_ready (tunnel, GNUNET_NO,
 484                                          GNUNET_TIME_UNIT_FOREVER_REL,
 485                                          size_payload, &tmt_rdy, (void *) 1L);
 486       if (data_ack < TOTAL_PACKETS && SPEED != test)
 487         return GNUNET_OK;
 488       if (ok == 2 && SPEED == test)
 489         return GNUNET_OK;
 490       show_end_data();
 491     }
 492     if (test == P2P_SIGNAL)
 493     {
 494       GNUNET_MESH_tunnel_destroy (incoming_t);
 495       incoming_t = NULL;
 496     }
 497     else
 498     {
 499       GNUNET_MESH_tunnel_destroy (t);
 500       t = NULL;
 501     }
 502   }
 503
 504   if (GNUNET_SCHEDULER_NO_TASK != disconnect_task)
 505   {
 506     GNUNET_SCHEDULER_cancel (disconnect_task);
 507     disconnect_task = GNUNET_SCHEDULER_add_delayed (SHORT_TIME,
 508                                                     &disconnect_mesh_peers,
 509                                                     (void *) __LINE__);
 510   }
 511
 512   return GNUNET_OK;
 513 }
 514
 515
 516 /**
 517  * Handlers, for diverse services
 518  */
 519 static struct GNUNET_MESH_MessageHandler handlers[] = {
 520   {&data_callback, 1, sizeof (struct GNUNET_MessageHeader)},
 521   {NULL, 0, 0}
 522 };
 523
 524
 525 /**
 526  * Method called whenever another peer has added us to a tunnel
 527  * the other peer initiated.
 528  *
 529  * @param cls Closure.
 530  * @param tunnel New handle to the tunnel.
 531  * @param initiator Peer that started the tunnel.
 532  * @param port Port this tunnels is connected to.
 533  * @return Initial tunnel context for the tunnel
 534  *         (can be NULL -- that's not an error).
 535  */
 536 static void *
 537 incoming_tunnel (void *cls, struct GNUNET_MESH_Tunnel *tunnel,
 538                  const struct GNUNET_PeerIdentity *initiator,
 539                  uint32_t port)
 540 {
 541   GNUNET_log (GNUNET_ERROR_TYPE_INFO,
 542               "Incoming tunnel from %s to peer %d\n",
 543               GNUNET_i2s (initiator), (long) cls);
 544   ok++;
 545   GNUNET_log (GNUNET_ERROR_TYPE_INFO, " ok: %d\n", ok);
 546   if ((long) cls == 4L)
 547     incoming_t = tunnel;
 548   else
 549   {
 550     GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
 551                 "Incoming tunnel for unknown client %lu\n", (long) cls);
 552     GNUNET_break(0);
 553   }
 554   if (GNUNET_SCHEDULER_NO_TASK != disconnect_task)
 555   {
 556     GNUNET_SCHEDULER_cancel (disconnect_task);
 557     disconnect_task = GNUNET_SCHEDULER_add_delayed (SHORT_TIME,
 558                                                     &disconnect_mesh_peers,
 559                                                     (void *) __LINE__);
 560   }
 561
 562   return NULL;
 563 }
 564
 565 /**
 566  * Function called whenever an inbound tunnel is destroyed.  Should clean up
 567  * any associated state.
 568  *
 569  * @param cls closure (set from GNUNET_MESH_connect)
 570  * @param tunnel connection to the other end (henceforth invalid)
 571  * @param tunnel_ctx place where local state associated
 572  *                   with the tunnel is stored
 573  */
 574 static void
 575 tunnel_cleaner (void *cls, const struct GNUNET_MESH_Tunnel *tunnel,
 576                 void *tunnel_ctx)
 577 {
 578   long i = (long) cls;
 579
 580   GNUNET_log (GNUNET_ERROR_TYPE_INFO,
 581               "Incoming tunnel disconnected at peer %d\n",
 582               i);
 583   if (4L == i)
 584   {
 585     ok++;
 586     incoming_t = NULL;
 587   }
 588   else if (0L == i && P2P_SIGNAL == test)
 589   {
 590     ok ++;
 591     t = NULL;
 592   }
 593   else
 594     GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
 595                 "Unknown peer! %d\n", i);
 596   GNUNET_log (GNUNET_ERROR_TYPE_INFO, " ok: %d\n", ok);
 597
 598   if (GNUNET_SCHEDULER_NO_TASK != disconnect_task)
 599   {
 600     GNUNET_SCHEDULER_cancel (disconnect_task);
 601     disconnect_task = GNUNET_SCHEDULER_add_now (&disconnect_mesh_peers,
 602                                                 (void *) __LINE__);
 603   }
 604
 605   return;
 606 }
 607
 608
 609 /**
 610  * START THE TESTCASE ITSELF, AS WE ARE CONNECTED TO THE MESH SERVICES.
 611  *
 612  * Testcase continues when the root receives confirmation of connected peers,
 613  * on callback funtion ch.
 614  *
 615  * @param cls Closure (unsued).
 616  * @param tc Task Context.
 617  */
 618 static void
 619 do_test (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
 620 {
 621   int nobuf;
 622   int rel;
 623
 624   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "test_task\n");
 625   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "add peer 2\n");
 626
 627   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 628               "schedule timeout in TIMEOUT\n");
 629   if (GNUNET_SCHEDULER_NO_TASK != disconnect_task)
 630   {
 631     GNUNET_SCHEDULER_cancel (disconnect_task);
 632   }
 633   if (SPEED_NOBUF == test)
 634   {
 635     test = SPEED;
 636     nobuf = GNUNET_YES;
 637   }
 638   else
 639     nobuf = GNUNET_NO;
 640
 641   if (SPEED_REL == test)
 642   {
 643     test = SPEED;
 644     rel = GNUNET_YES;
 645   }
 646   else
 647     rel = GNUNET_NO;
 648   t = GNUNET_MESH_tunnel_create (h1, NULL, p_id[1], 1, nobuf, rel);
 649
 650   disconnect_task = GNUNET_SCHEDULER_add_delayed (SHORT_TIME,
 651                                                   &disconnect_mesh_peers,
 652                                                   (void *) __LINE__);
 653   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 654               "Sending data initializer...\n");
 655   data_ack = 0;
 656   data_received = 0;
 657   data_sent = 0;
 658   GNUNET_MESH_notify_transmit_ready (t, GNUNET_NO,
 659                                      GNUNET_TIME_UNIT_FOREVER_REL,
 660                                      size_payload, &tmt_rdy, (void *) 1L);
 661 }
 662
 663 /**
 664  * Callback to be called when the requested peer information is available
 665  *
 666  * @param cls the closure from GNUNET_TESTBED_peer_get_information()
 667  * @param op the operation this callback corresponds to
 668  * @param pinfo the result; will be NULL if the operation has failed
 669  * @param emsg error message if the operation has failed;
 670  *             NULL if the operation is successfull
 671  */
 672 static void
 673 pi_cb (void *cls,
 674        struct GNUNET_TESTBED_Operation *op,
 675        const struct GNUNET_TESTBED_PeerInformation *pinfo,
 676        const char *emsg)
 677 {
 678   long i = (long) cls;
 679
 680   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "id callback for %ld\n", i);
 681
 682   if (NULL == pinfo || NULL != emsg)
 683   {
 684     GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "pi_cb: %s\n", emsg);
 685     abort_test (__LINE__);
 686     return;
 687   }
 688   p_id[i] = pinfo->result.id;
 689   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "  id: %s\n", GNUNET_i2s (p_id[i]));
 690   p_ids++;
 691   if (p_ids < 2)
 692     return;
 693   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Got all IDs, starting test\n");
 694   test_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_SECONDS,
 695                                             &do_test, NULL);
 696 }
 697
 698 /**
 699  * test main: start test when all peers are connected
 700  *
 701  * @param cls Closure.
 702  * @param ctx Argument to give to GNUNET_MESH_TEST_cleanup on test end.
 703  * @param num_peers Number of peers that are running.
 704  * @param peers Array of peers.
 705  * @param meshes Handle to each of the MESHs of the peers.
 706  */
 707 static void
 708 tmain (void *cls,
 709        struct GNUNET_MESH_TEST_Context *ctx,
 710        unsigned int num_peers,
 711        struct GNUNET_TESTBED_Peer **peers,
 712        struct GNUNET_MESH_Handle **meshes)
 713 {
 714   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "test main\n");
 715   ok = 0;
 716   test_ctx = ctx;
 717   peers_running = num_peers;
 718   h1 = meshes[0];
 719   h2 = meshes[num_peers - 1];
 720   disconnect_task = GNUNET_SCHEDULER_add_delayed (SHORT_TIME,
 721                                                   &disconnect_mesh_peers,
 722                                                   (void *) __LINE__);
 723   shutdown_handle = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_FOREVER_REL,
 724                                                   &shutdown_task, NULL);
 725   t_op[0] = GNUNET_TESTBED_peer_get_information (peers[0],
 726                                                  GNUNET_TESTBED_PIT_IDENTITY,
 727                                                  &pi_cb, (void *) 0L);
 728   t_op[1] = GNUNET_TESTBED_peer_get_information (peers[num_peers - 1],
 729                                                  GNUNET_TESTBED_PIT_IDENTITY,
 730                                                  &pi_cb, (void *) 1L);
 731   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "requested peer ids\n");
 732 }
 733
 734
 735 /**
 736  * Main: start test
 737  */
 738 int
 739 main (int argc, char *argv[])
 740 {
 741   initialized = GNUNET_NO;
 742   uint32_t ports[2];
 743   const char *config_file;
 744
 745   GNUNET_log_setup ("test", "DEBUG", NULL);
 746   config_file = "test_mesh.conf";
 747
 748   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Start\n");
 749   if (strstr (argv[0], "_small_forward") != NULL)
 750   {
 751     GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "FORWARD\n");
 752     test = FORWARD;
 753     test_name = "unicast";
 754     ok_goal = 4;
 755   }
 756   else if (strstr (argv[0], "_small_signal") != NULL)
 757   {
 758     GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "SIGNAL\n");
 759     test = P2P_SIGNAL;
 760     test_name = "signal";
 761     ok_goal = 4;
 762   }
 763   else if (strstr (argv[0], "_small_speed_ack") != NULL)
 764   {
 765    /* Each peer is supposed to generate the following callbacks:
 766     * 1 incoming tunnel (@dest)
 767     * TOTAL_PACKETS received data packet (@dest)
 768     * TOTAL_PACKETS received data packet (@orig)
 769     * 1 received tunnel destroy (@dest)
 770     * _________________________________
 771     * 5 x ok expected per peer
 772     */
 773     GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "SPEED_ACK\n");
 774     test = SPEED_ACK;
 775     test_name = "speed ack";
 776     ok_goal = TOTAL_PACKETS * 2 + 2;
 777   }
 778   else if (strstr (argv[0], "_small_speed") != NULL)
 779   {
 780    /* Each peer is supposed to generate the following callbacks:
 781     * 1 incoming tunnel (@dest)
 782     * 1 initial packet (@dest)
 783     * TOTAL_PACKETS received data packet (@dest)
 784     * 1 received data packet (@orig)
 785     * 1 received tunnel destroy (@dest)
 786     * _________________________________
 787     */
 788     GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "SPEED\n");
 789     ok_goal = TOTAL_PACKETS + 4;
 790     if (strstr (argv[0], "_nobuf") != NULL)
 791     {
 792       test = SPEED_NOBUF;
 793       test_name = "speed nobuf";
 794     }
 795     else if (strstr (argv[0], "_reliable") != NULL)
 796     {
 797       test = SPEED_REL;
 798       test_name = "speed reliable";
 799       config_file = "test_mesh_drop.conf";
 800     }
 801     else
 802     {
 803       test = SPEED;
 804       test_name = "speed";
 805     }
 806   }
 807   else
 808   {
 809     GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "UNKNOWN\n");
 810     test = SETUP;
 811     ok_goal = 0;
 812   }
 813
 814   if (strstr (argv[0], "backwards") != NULL)
 815   {
 816     char *aux;
 817
 818     GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "BACKWARDS (LEAF TO ROOT)\n");
 819     test_backwards = GNUNET_YES;
 820     aux = GNUNET_malloc (32);
 821     sprintf (aux, "backwards %s", test_name);
 822     test_name = aux;
 823   }
 824
 825   p_ids = 0;
 826   ports[0] = 1;
 827   ports[1] = 0;
 828   GNUNET_MESH_TEST_run ("test_mesh_small",
 829                         config_file,
 830                         5,
 831                         &tmain,
 832                         NULL, /* tmain cls */
 833                         &incoming_tunnel,
 834                         &tunnel_cleaner,
 835                         handlers,
 836                         ports);
 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 */
 849