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 %llu ms\n",
 196             (unsigned long long) total_time.rel_value);
 197   FPRINTF (stderr, "Test bandwidth: %f kb/s\n",
 198             4 * TOTAL_PACKETS * 1.0 / total_time.rel_value); // 4bytes * ms
 199   FPRINTF (stderr, "Test throughput: %f packets/s\n\n",
 200             TOTAL_PACKETS * 1000.0 / total_time.rel_value); // packets * ms
 201   GAUGER ("MESH", test_name,
 202           TOTAL_PACKETS * 1000.0 / total_time.rel_value,
 203           "packets/s");
 204 }
 205
 206
 207 /**
 208  * Shut down peergroup, clean up.
 209  *
 210  * @param cls Closure (unused).
 211  * @param tc Task Context.
 212  */
 213 static void
 214 shutdown_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
 215 {
 216   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Ending test.\n");
 217   shutdown_handle = GNUNET_SCHEDULER_NO_TASK;
 218 }
 219
 220
 221 /**
 222  * Disconnect from mesh services af all peers, call shutdown.
 223  *
 224  * @param cls Closure (unused).
 225  * @param tc Task Context.
 226  */
 227 static void
 228 disconnect_mesh_peers (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
 229 {
 230   long line = (long) cls;
 231   unsigned int i;
 232
 233   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 234               "disconnecting mesh service of peers, called from line %ld\n",
 235               line);
 236   disconnect_task = GNUNET_SCHEDULER_NO_TASK;
 237   for (i = 0; i < 2; i++)
 238   {
 239     GNUNET_TESTBED_operation_done (t_op[i]);
 240   }
 241   if (NULL != t)
 242   {
 243     GNUNET_MESH_tunnel_destroy (t);
 244     t = NULL;
 245   }
 246   if (NULL != incoming_t)
 247   {
 248     GNUNET_MESH_tunnel_destroy (incoming_t);
 249     incoming_t = NULL;
 250   }
 251   GNUNET_MESH_TEST_cleanup (test_ctx);
 252   if (GNUNET_SCHEDULER_NO_TASK != shutdown_handle)
 253   {
 254     GNUNET_SCHEDULER_cancel (shutdown_handle);
 255   }
 256   shutdown_handle = GNUNET_SCHEDULER_add_now (&shutdown_task, NULL);
 257 }
 258
 259
 260 /**
 261  * Abort test: schedule disconnect and shutdown immediately
 262  *
 263  * @param line Line in the code the abort is requested from (__LINE__).
 264  */
 265 static void
 266 abort_test (long line)
 267 {
 268   if (disconnect_task != GNUNET_SCHEDULER_NO_TASK)
 269   {
 270     GNUNET_SCHEDULER_cancel (disconnect_task);
 271     disconnect_task = GNUNET_SCHEDULER_add_now (&disconnect_mesh_peers,
 272                                                 (void *) line);
 273   }
 274 }
 275
 276 /**
 277  * Transmit ready callback.
 278  *
 279  * @param cls Closure (message type).
 280  * @param size Size of the tranmist buffer.
 281  * @param buf Pointer to the beginning of the buffer.
 282  *
 283  * @return Number of bytes written to buf.
 284  */
 285 static size_t
 286 tmt_rdy (void *cls, size_t size, void *buf);
 287
 288
 289 /**
 290  * Task to schedule a new data transmission.
 291  *
 292  * @param cls Closure (peer #).
 293  * @param tc Task Context.
 294  */
 295 static void
 296 data_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
 297 {
 298   struct GNUNET_MESH_TransmitHandle *th;
 299   struct GNUNET_MESH_Tunnel *tunnel;
 300
 301   if ((GNUNET_SCHEDULER_REASON_SHUTDOWN & tc->reason) != 0)
 302     return;
 303
 304   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Data task\n");
 305   if (GNUNET_YES == test_backwards)
 306   {
 307     tunnel = incoming_t;
 308   }
 309   else
 310   {
 311     tunnel = t;
 312   }
 313   th = GNUNET_MESH_notify_transmit_ready (tunnel, GNUNET_NO,
 314                                           GNUNET_TIME_UNIT_FOREVER_REL,
 315                                           size_payload, &tmt_rdy, (void *) 1L);
 316   if (NULL == th)
 317   {
 318     unsigned long i = (unsigned long) cls;
 319
 320     GNUNET_log (GNUNET_ERROR_TYPE_INFO, "Retransmission\n");
 321     if (0 == i)
 322     {
 323       GNUNET_log (GNUNET_ERROR_TYPE_INFO, "  in 1 ms\n");
 324       GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_MILLISECONDS,
 325                                     &data_task, (void *)1UL);
 326     }
 327     else
 328     {
 329       i++;
 330       GNUNET_log (GNUNET_ERROR_TYPE_INFO, "in %u ms\n", i);
 331       GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(
 332                                       GNUNET_TIME_UNIT_MILLISECONDS,
 333                                       i),
 334                                     &data_task, (void *)i);
 335     }
 336   }
 337 }
 338
 339
 340 /**
 341  * Transmit ready callback
 342  *
 343  * @param cls Closure (message type).
 344  * @param size Size of the buffer we have.
 345  * @param buf Buffer to copy data to.
 346  */
 347 size_t
 348 tmt_rdy (void *cls, size_t size, void *buf)
 349 {
 350   struct GNUNET_MessageHeader *msg = buf;
 351   uint32_t *data;
 352
 353   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 354               " tmt_rdy called\n");
 355   if (size < size_payload || NULL == buf)
 356   {
 357     GNUNET_break (0);
 358     GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
 359                 "size %u, buf %p, data_sent %u, data_received %u\n",
 360                 size,
 361                 buf,
 362                 data_sent,
 363                 data_received);
 364     return 0;
 365   }
 366   msg->size = htons (size);
 367   msg->type = htons ((long) cls);
 368   data = (uint32_t *) &msg[1];
 369   *data = htonl (data_sent);
 370   if (SPEED == test && GNUNET_YES == initialized)
 371   {
 372     data_sent++;
 373     GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 374               " Sent packet %d\n", data_sent);
 375     if (data_sent < TOTAL_PACKETS)
 376     {
 377       GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 378               " Scheduling packet %d\n", data_sent + 1);
 379       GNUNET_SCHEDULER_add_now(&data_task, NULL);
 380     }
 381   }
 382   return size_payload;
 383 }
 384
 385
 386 /**
 387  * Function is called whenever a message is received.
 388  *
 389  * @param cls closure (set from GNUNET_MESH_connect)
 390  * @param tunnel connection to the other end
 391  * @param tunnel_ctx place to store local state associated with the tunnel
 392  * @param message the actual message
 393  * @return GNUNET_OK to keep the connection open,
 394  *         GNUNET_SYSERR to close it (signal serious error)
 395  */
 396 int
 397 data_callback (void *cls, struct GNUNET_MESH_Tunnel *tunnel, void **tunnel_ctx,
 398                const struct GNUNET_MessageHeader *message)
 399 {
 400   long client = (long) cls;
 401   long expected_target_client;
 402   uint32_t *data;
 403
 404   ok++;
 405
 406   GNUNET_MESH_receive_done (tunnel);
 407
 408   if ((ok % 20) == 0)
 409   {
 410     if (GNUNET_SCHEDULER_NO_TASK != disconnect_task)
 411     {
 412       GNUNET_SCHEDULER_cancel (disconnect_task);
 413       disconnect_task = GNUNET_SCHEDULER_add_delayed (SHORT_TIME,
 414                                                       &disconnect_mesh_peers,
 415                                                       (void *) __LINE__);
 416     }
 417   }
 418
 419   switch (client)
 420   {
 421   case 0L:
 422     GNUNET_log (GNUNET_ERROR_TYPE_INFO, "Root client got a message!\n");
 423     break;
 424   case 4L:
 425     GNUNET_log (GNUNET_ERROR_TYPE_INFO,
 426                 "Leaf client %li got a message.\n",
 427                 client);
 428     break;
 429   default:
 430     GNUNET_assert (0);
 431     break;
 432   }
 433   GNUNET_log (GNUNET_ERROR_TYPE_INFO, " ok: (%d/%d)\n", ok, ok_goal);
 434   data = (uint32_t *) &message[1];
 435   GNUNET_log (GNUNET_ERROR_TYPE_INFO, " payload: (%u)\n", ntohl (*data));
 436   if (SPEED == test && GNUNET_YES == test_backwards)
 437   {
 438     expected_target_client = 0L;
 439   }
 440   else
 441   {
 442     expected_target_client = 4L;
 443   }
 444
 445   if (GNUNET_NO == initialized)
 446   {
 447     initialized = GNUNET_YES;
 448     start_time = GNUNET_TIME_absolute_get ();
 449     if (SPEED == test)
 450     {
 451       GNUNET_assert (4L == client);
 452       GNUNET_SCHEDULER_add_now (&data_task, NULL);
 453       return GNUNET_OK;
 454     }
 455   }
 456
 457   if (client == expected_target_client) // Normally 4
 458   {
 459     data_received++;
 460     GNUNET_log (GNUNET_ERROR_TYPE_INFO,
 461                 " received data %u\n", data_received);
 462     if (SPEED != test || (ok_goal - 2) == ok)
 463     {
 464       GNUNET_MESH_notify_transmit_ready (tunnel, GNUNET_NO,
 465                                          GNUNET_TIME_UNIT_FOREVER_REL,
 466                                          size_payload, &tmt_rdy, (void *) 1L);
 467       return GNUNET_OK;
 468     }
 469     else
 470     {
 471       if (data_received < TOTAL_PACKETS)
 472         return GNUNET_OK;
 473     }
 474   }
 475   else // Normally 0
 476   {
 477     if (test == SPEED_ACK || test == SPEED)
 478     {
 479       data_ack++;
 480       GNUNET_log (GNUNET_ERROR_TYPE_INFO,
 481               " received ack %u\n", data_ack);
 482       GNUNET_MESH_notify_transmit_ready (tunnel, GNUNET_NO,
 483                                          GNUNET_TIME_UNIT_FOREVER_REL,
 484                                          size_payload, &tmt_rdy, (void *) 1L);
 485       if (data_ack < TOTAL_PACKETS && SPEED != test)
 486         return GNUNET_OK;
 487       if (ok == 2 && SPEED == test)
 488         return GNUNET_OK;
 489       show_end_data();
 490     }
 491     if (test == P2P_SIGNAL)
 492     {
 493       GNUNET_MESH_tunnel_destroy (incoming_t);
 494       incoming_t = NULL;
 495     }
 496     else
 497     {
 498       GNUNET_MESH_tunnel_destroy (t);
 499       t = NULL;
 500     }
 501   }
 502
 503   if (GNUNET_SCHEDULER_NO_TASK != disconnect_task)
 504   {
 505     GNUNET_SCHEDULER_cancel (disconnect_task);
 506     disconnect_task = GNUNET_SCHEDULER_add_delayed (SHORT_TIME,
 507                                                     &disconnect_mesh_peers,
 508                                                     (void *) __LINE__);
 509   }
 510
 511   return GNUNET_OK;
 512 }
 513
 514
 515 /**
 516  * Handlers, for diverse services
 517  */
 518 static struct GNUNET_MESH_MessageHandler handlers[] = {
 519   {&data_callback, 1, sizeof (struct GNUNET_MessageHeader)},
 520   {NULL, 0, 0}
 521 };
 522
 523
 524 /**
 525  * Method called whenever another peer has added us to a tunnel
 526  * the other peer initiated.
 527  *
 528  * @param cls Closure.
 529  * @param tunnel New handle to the tunnel.
 530  * @param initiator Peer that started the tunnel.
 531  * @param port Port this tunnels is connected to.
 532  * @return Initial tunnel context for the tunnel
 533  *         (can be NULL -- that's not an error).
 534  */
 535 static void *
 536 incoming_tunnel (void *cls, struct GNUNET_MESH_Tunnel *tunnel,
 537                  const struct GNUNET_PeerIdentity *initiator,
 538                  uint32_t port)
 539 {
 540   GNUNET_log (GNUNET_ERROR_TYPE_INFO,
 541               "Incoming tunnel from %s to peer %d\n",
 542               GNUNET_i2s (initiator), (long) cls);
 543   ok++;
 544   GNUNET_log (GNUNET_ERROR_TYPE_INFO, " ok: %d\n", ok);
 545   if ((long) cls == 4L)
 546     incoming_t = tunnel;
 547   else
 548   {
 549     GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
 550                 "Incoming tunnel for unknown client %lu\n", (long) cls);
 551     GNUNET_break(0);
 552   }
 553   if (GNUNET_SCHEDULER_NO_TASK != disconnect_task)
 554   {
 555     GNUNET_SCHEDULER_cancel (disconnect_task);
 556     disconnect_task = GNUNET_SCHEDULER_add_delayed (SHORT_TIME,
 557                                                     &disconnect_mesh_peers,
 558                                                     (void *) __LINE__);
 559   }
 560
 561   return NULL;
 562 }
 563
 564 /**
 565  * Function called whenever an inbound tunnel is destroyed.  Should clean up
 566  * any associated state.
 567  *
 568  * @param cls closure (set from GNUNET_MESH_connect)
 569  * @param tunnel connection to the other end (henceforth invalid)
 570  * @param tunnel_ctx place where local state associated
 571  *                   with the tunnel is stored
 572  */
 573 static void
 574 tunnel_cleaner (void *cls, const struct GNUNET_MESH_Tunnel *tunnel,
 575                 void *tunnel_ctx)
 576 {
 577   long i = (long) cls;
 578
 579   GNUNET_log (GNUNET_ERROR_TYPE_INFO,
 580               "Incoming tunnel disconnected at peer %d\n",
 581               i);
 582   if (4L == i)
 583   {
 584     ok++;
 585     incoming_t = NULL;
 586   }
 587   else if (0L == i && P2P_SIGNAL == test)
 588   {
 589     ok ++;
 590     t = NULL;
 591   }
 592   else
 593     GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
 594                 "Unknown peer! %d\n", i);
 595   GNUNET_log (GNUNET_ERROR_TYPE_INFO, " ok: %d\n", ok);
 596
 597   if (GNUNET_SCHEDULER_NO_TASK != disconnect_task)
 598   {
 599     GNUNET_SCHEDULER_cancel (disconnect_task);
 600     disconnect_task = GNUNET_SCHEDULER_add_now (&disconnect_mesh_peers,
 601                                                 (void *) __LINE__);
 602   }
 603
 604   return;
 605 }
 606
 607
 608 /**
 609  * START THE TESTCASE ITSELF, AS WE ARE CONNECTED TO THE MESH SERVICES.
 610  *
 611  * Testcase continues when the root receives confirmation of connected peers,
 612  * on callback funtion ch.
 613  *
 614  * @param cls Closure (unsued).
 615  * @param tc Task Context.
 616  */
 617 static void
 618 do_test (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
 619 {
 620   int nobuf;
 621   int rel;
 622
 623   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "test_task\n");
 624   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "add peer 2\n");
 625
 626   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 627               "schedule timeout in TIMEOUT\n");
 628   if (GNUNET_SCHEDULER_NO_TASK != disconnect_task)
 629   {
 630     GNUNET_SCHEDULER_cancel (disconnect_task);
 631   }
 632   if (SPEED_NOBUF == test)
 633   {
 634     test = SPEED;
 635     nobuf = GNUNET_YES;
 636   }
 637   else
 638     nobuf = GNUNET_NO;
 639
 640   if (SPEED_REL == test)
 641   {
 642     test = SPEED;
 643     rel = GNUNET_YES;
 644   }
 645   else
 646     rel = GNUNET_NO;
 647   t = GNUNET_MESH_tunnel_create (h1, NULL, p_id[1], 1, nobuf, rel);
 648
 649   disconnect_task = GNUNET_SCHEDULER_add_delayed (SHORT_TIME,
 650                                                   &disconnect_mesh_peers,
 651                                                   (void *) __LINE__);
 652   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 653               "Sending data initializer...\n");
 654   data_ack = 0;
 655   data_received = 0;
 656   data_sent = 0;
 657   GNUNET_MESH_notify_transmit_ready (t, GNUNET_NO,
 658                                      GNUNET_TIME_UNIT_FOREVER_REL,
 659                                      size_payload, &tmt_rdy, (void *) 1L);
 660 }
 661
 662 /**
 663  * Callback to be called when the requested peer information is available
 664  *
 665  * @param cls the closure from GNUNET_TESTBED_peer_get_information()
 666  * @param op the operation this callback corresponds to
 667  * @param pinfo the result; will be NULL if the operation has failed
 668  * @param emsg error message if the operation has failed;
 669  *             NULL if the operation is successfull
 670  */
 671 static void
 672 pi_cb (void *cls,
 673        struct GNUNET_TESTBED_Operation *op,
 674        const struct GNUNET_TESTBED_PeerInformation *pinfo,
 675        const char *emsg)
 676 {
 677   long i = (long) cls;
 678
 679   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "id callback for %ld\n", i);
 680
 681   if (NULL == pinfo || NULL != emsg)
 682   {
 683     GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "pi_cb: %s\n", emsg);
 684     abort_test (__LINE__);
 685     return;
 686   }
 687   p_id[i] = pinfo->result.id;
 688   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "  id: %s\n", GNUNET_i2s (p_id[i]));
 689   p_ids++;
 690   if (p_ids < 2)
 691     return;
 692   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Got all IDs, starting test\n");
 693   test_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_SECONDS,
 694                                             &do_test, NULL);
 695 }
 696
 697 /**
 698  * test main: start test when all peers are connected
 699  *
 700  * @param cls Closure.
 701  * @param ctx Argument to give to GNUNET_MESH_TEST_cleanup on test end.
 702  * @param num_peers Number of peers that are running.
 703  * @param peers Array of peers.
 704  * @param meshes Handle to each of the MESHs of the peers.
 705  */
 706 static void
 707 tmain (void *cls,
 708        struct GNUNET_MESH_TEST_Context *ctx,
 709        unsigned int num_peers,
 710        struct GNUNET_TESTBED_Peer **peers,
 711        struct GNUNET_MESH_Handle **meshes)
 712 {
 713   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "test main\n");
 714   ok = 0;
 715   test_ctx = ctx;
 716   peers_running = num_peers;
 717   h1 = meshes[0];
 718   h2 = meshes[num_peers - 1];
 719   disconnect_task = GNUNET_SCHEDULER_add_delayed (SHORT_TIME,
 720                                                   &disconnect_mesh_peers,
 721                                                   (void *) __LINE__);
 722   shutdown_handle = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_FOREVER_REL,
 723                                                   &shutdown_task, NULL);
 724   t_op[0] = GNUNET_TESTBED_peer_get_information (peers[0],
 725                                                  GNUNET_TESTBED_PIT_IDENTITY,
 726                                                  &pi_cb, (void *) 0L);
 727   t_op[1] = GNUNET_TESTBED_peer_get_information (peers[num_peers - 1],
 728                                                  GNUNET_TESTBED_PIT_IDENTITY,
 729                                                  &pi_cb, (void *) 1L);
 730   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "requested peer ids\n");
 731 }
 732
 733
 734 /**
 735  * Main: start test
 736  */
 737 int
 738 main (int argc, char *argv[])
 739 {
 740   initialized = GNUNET_NO;
 741   uint32_t ports[2];
 742   const char *config_file;
 743
 744   GNUNET_log_setup ("test", "DEBUG", NULL);
 745   config_file = "test_mesh.conf";
 746
 747   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Start\n");
 748   if (strstr (argv[0], "_small_forward") != NULL)
 749   {
 750     GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "FORWARD\n");
 751     test = FORWARD;
 752     test_name = "unicast";
 753     ok_goal = 4;
 754   }
 755   else if (strstr (argv[0], "_small_signal") != NULL)
 756   {
 757     GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "SIGNAL\n");
 758     test = P2P_SIGNAL;
 759     test_name = "signal";
 760     ok_goal = 4;
 761   }
 762   else if (strstr (argv[0], "_small_speed_ack") != NULL)
 763   {
 764    /* Each peer is supposed to generate the following callbacks:
 765     * 1 incoming tunnel (@dest)
 766     * TOTAL_PACKETS received data packet (@dest)
 767     * TOTAL_PACKETS received data packet (@orig)
 768     * 1 received tunnel destroy (@dest)
 769     * _________________________________
 770     * 5 x ok expected per peer
 771     */
 772     GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "SPEED_ACK\n");
 773     test = SPEED_ACK;
 774     test_name = "speed ack";
 775     ok_goal = TOTAL_PACKETS * 2 + 2;
 776   }
 777   else if (strstr (argv[0], "_small_speed") != NULL)
 778   {
 779    /* Each peer is supposed to generate the following callbacks:
 780     * 1 incoming tunnel (@dest)
 781     * 1 initial packet (@dest)
 782     * TOTAL_PACKETS received data packet (@dest)
 783     * 1 received data packet (@orig)
 784     * 1 received tunnel destroy (@dest)
 785     * _________________________________
 786     */
 787     GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "SPEED\n");
 788     ok_goal = TOTAL_PACKETS + 4;
 789     if (strstr (argv[0], "_nobuf") != NULL)
 790     {
 791       test = SPEED_NOBUF;
 792       test_name = "speed nobuf";
 793     }
 794     else if (strstr (argv[0], "_reliable") != NULL)
 795     {
 796       test = SPEED_REL;
 797       test_name = "speed reliable";
 798       config_file = "test_mesh_drop.conf";
 799     }
 800     else
 801     {
 802       test = SPEED;
 803       test_name = "speed";
 804     }
 805   }
 806   else
 807   {
 808     GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "UNKNOWN\n");
 809     test = SETUP;
 810     ok_goal = 0;
 811   }
 812
 813   if (strstr (argv[0], "backwards") != NULL)
 814   {
 815     char *aux;
 816
 817     GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "BACKWARDS (LEAF TO ROOT)\n");
 818     test_backwards = GNUNET_YES;
 819     aux = GNUNET_malloc (32);
 820     sprintf (aux, "backwards %s", test_name);
 821     test_name = aux;
 822   }
 823
 824   p_ids = 0;
 825   ports[0] = 1;
 826   ports[1] = 0;
 827   GNUNET_MESH_TEST_run ("test_mesh_small",
 828                         config_file,
 829                         5,
 830                         &tmain,
 831                         NULL, /* tmain cls */
 832                         &incoming_tunnel,
 833                         &tunnel_cleaner,
 834                         handlers,
 835                         ports);
 836
 837   if (ok_goal > ok)
 838   {
 839     GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
 840                 "FAILED! (%d/%d)\n", ok, ok_goal);
 841     return 1;
 842   }
 843   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "success\n");
 844   return 0;
 845 }
 846
 847 /* end of test_mesh_small.c */
 848