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 "platform.h"
  26 #include "gnunet_testing_lib.h"
  27 #include "gnunet_mesh_service.h"
  28
  29 #define VERBOSE GNUNET_YES
  30 #define REMOVE_DIR GNUNET_YES
  31
  32 struct MeshPeer
  33 {
  34   struct MeshPeer *prev;
  35
  36   struct MeshPeer *next;
  37
  38   struct GNUNET_TESTING_Daemon *daemon;
  39
  40   struct GNUNET_MESH_Handle *mesh_handle;
  41 };
  42
  43
  44 struct StatsContext
  45 {
  46   unsigned long long total_mesh_bytes;
  47 };
  48
  49
  50 /**
  51  * How long until we give up on connecting the peers?
  52  */
  53 #define TIMEOUT GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 1500)
  54
  55 /**
  56  * Time to wait for stuff that should be rather fast
  57  */
  58 #define SHORT_TIME GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 300)
  59
  60 /**
  61  * DIFFERENT TESTS TO RUN
  62  */
  63 #define SETUP 0
  64 #define UNICAST 1
  65 #define MULTICAST 2
  66
  67 /**
  68  * Which test are we running?
  69  */
  70 static int test;
  71
  72 /**
  73  * How many events have happened
  74  */
  75 static int ok;
  76
  77 static int peers_in_tunnel;
  78
  79 static int peers_responded;
  80
  81 /**
  82  * Be verbose
  83  */
  84 static int verbose;
  85
  86 /**
  87  * Total number of peers in the test.
  88  */
  89 static unsigned long long num_peers;
  90
  91 /**
  92  * Global configuration file
  93  */
  94 static struct GNUNET_CONFIGURATION_Handle *testing_cfg;
  95
  96 /**
  97  * Total number of currently running peers.
  98  */
  99 static unsigned long long peers_running;
 100
 101 /**
 102  * Total number of connections in the whole network.
 103  */
 104 static unsigned int total_connections;
 105
 106 /**
 107  * The currently running peer group.
 108  */
 109 static struct GNUNET_TESTING_PeerGroup *pg;
 110
 111 /**
 112  * File to report results to.
 113  */
 114 static struct GNUNET_DISK_FileHandle *output_file;
 115
 116 /**
 117  * File to log connection info, statistics to.
 118  */
 119 static struct GNUNET_DISK_FileHandle *data_file;
 120
 121 /**
 122  * How many data points to capture before triggering next round?
 123  */
 124 static struct GNUNET_TIME_Relative wait_time;
 125
 126 /**
 127  * Task called to disconnect peers.
 128  */
 129 static GNUNET_SCHEDULER_TaskIdentifier disconnect_task;
 130
 131 /**
 132  * Task To perform tests
 133  */
 134 static GNUNET_SCHEDULER_TaskIdentifier test_task;
 135
 136 /**
 137  * Task called to shutdown test.
 138  */
 139 static GNUNET_SCHEDULER_TaskIdentifier shutdown_handle;
 140
 141 static char *topology_file;
 142
 143 static struct GNUNET_TESTING_Daemon *d1;
 144
 145 static GNUNET_PEER_Id pid1;
 146
 147 static struct GNUNET_TESTING_Daemon *d2;
 148
 149 static struct GNUNET_TESTING_Daemon *d3;
 150
 151 static struct GNUNET_MESH_Handle *h1;
 152
 153 static struct GNUNET_MESH_Handle *h2;
 154
 155 static struct GNUNET_MESH_Handle *h3;
 156
 157 static struct GNUNET_MESH_Tunnel *t;
 158
 159 static struct GNUNET_MESH_Tunnel *incoming_t;
 160
 161 static struct GNUNET_MESH_Tunnel *incoming_t2;
 162
 163 static uint16_t *mesh_peers;
 164
 165 /**
 166  * Check whether peers successfully shut down.
 167  */
 168 static void
 169 shutdown_callback (void *cls, const char *emsg)
 170 {
 171   if (emsg != NULL)
 172   {
 173 #if VERBOSE
 174     GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 175                 "***************** test: Shutdown of peers failed!\n");
 176 #endif
 177     ok--;
 178   }
 179   else
 180   {
 181 #if VERBOSE
 182     GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 183                 "***************** test: All peers successfully shut down!\n");
 184 #endif
 185   }
 186 }
 187
 188
 189 static void
 190 shutdown_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
 191 {
 192 #if VERBOSE
 193   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 194               "***************** test: Ending test.\n");
 195 #endif
 196
 197   if (disconnect_task != GNUNET_SCHEDULER_NO_TASK)
 198   {
 199     GNUNET_SCHEDULER_cancel (disconnect_task);
 200     disconnect_task = GNUNET_SCHEDULER_NO_TASK;
 201   }
 202
 203   if (data_file != NULL)
 204     GNUNET_DISK_file_close (data_file);
 205   GNUNET_TESTING_daemons_stop (pg, TIMEOUT, &shutdown_callback, NULL);
 206   GNUNET_CONFIGURATION_destroy (testing_cfg);
 207 }
 208
 209
 210 static void
 211 disconnect_mesh_peers (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
 212 {
 213   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 214               "***************** test: disconnecting mesh service of peers\n");
 215   disconnect_task = GNUNET_SCHEDULER_NO_TASK;
 216   GNUNET_MESH_disconnect (h1);
 217   GNUNET_MESH_disconnect (h2);
 218   if (test == MULTICAST)
 219     GNUNET_MESH_disconnect (h3);
 220   if (GNUNET_SCHEDULER_NO_TASK != shutdown_handle)
 221   {
 222     GNUNET_SCHEDULER_cancel (shutdown_handle);
 223     shutdown_handle = GNUNET_SCHEDULER_add_now (&shutdown_task, NULL);
 224   }
 225 }
 226
 227
 228 /**
 229  * Transmit ready callback
 230  */
 231 size_t
 232 tmt_rdy (void *cls, size_t size, void *buf)
 233 {
 234   struct GNUNET_MessageHeader *msg = buf;
 235
 236   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 237               "***************** test:  tmt_rdy called\n");
 238   if (size < sizeof (struct GNUNET_MessageHeader) || NULL == buf)
 239     return 0;
 240   msg->size = htons (sizeof (struct GNUNET_MessageHeader));
 241   msg->type = htons ((long) cls);
 242   return sizeof (struct GNUNET_MessageHeader);
 243 }
 244
 245
 246 /**
 247  * Function is called whenever a message is received.
 248  *
 249  * @param cls closure (set from GNUNET_MESH_connect)
 250  * @param tunnel connection to the other end
 251  * @param tunnel_ctx place to store local state associated with the tunnel
 252  * @param sender who sent the message
 253  * @param message the actual message
 254  * @param atsi performance data for the connection
 255  * @return GNUNET_OK to keep the connection open,
 256  *         GNUNET_SYSERR to close it (signal serious error)
 257  */
 258 int
 259 data_callback (void *cls, struct GNUNET_MESH_Tunnel *tunnel, void **tunnel_ctx,
 260                const struct GNUNET_PeerIdentity *sender,
 261                const struct GNUNET_MessageHeader *message,
 262                const struct GNUNET_ATS_Information *atsi)
 263 {
 264   long client = (long) cls;
 265
 266   switch (client)
 267   {
 268   case 1L:
 269     GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 270                 "***************** test: Origin client got a response!\n");
 271     ok++;
 272     peers_responded++;
 273     if (GNUNET_SCHEDULER_NO_TASK != disconnect_task)
 274     {
 275       GNUNET_SCHEDULER_cancel (disconnect_task);
 276       disconnect_task =
 277           GNUNET_SCHEDULER_add_delayed (SHORT_TIME, &disconnect_mesh_peers,
 278                                         NULL);
 279     }
 280     if (test == MULTICAST && peers_responded < 2)
 281       return GNUNET_OK;
 282     GNUNET_MESH_tunnel_destroy (tunnel);
 283     break;
 284   case 2L:
 285   case 3L:
 286     GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 287                 "***************** test: Destination client %u got a message.\n",
 288                 client);
 289     ok++;
 290     GNUNET_MESH_notify_transmit_ready (tunnel, GNUNET_NO, 0,
 291                                        GNUNET_TIME_UNIT_FOREVER_REL, sender,
 292                                        sizeof (struct GNUNET_MessageHeader),
 293                                        &tmt_rdy, (void *) 1L);
 294     if (GNUNET_SCHEDULER_NO_TASK != disconnect_task)
 295     {
 296       GNUNET_SCHEDULER_cancel (disconnect_task);
 297       disconnect_task =
 298           GNUNET_SCHEDULER_add_delayed (SHORT_TIME, &disconnect_mesh_peers,
 299                                         NULL);
 300     }
 301     break;
 302   default:
 303     break;
 304   }
 305   return GNUNET_OK;
 306 }
 307
 308
 309 /**
 310  * Handlers, for diverse services
 311  */
 312 static struct GNUNET_MESH_MessageHandler handlers[] = {
 313   {&data_callback, 1, sizeof (struct GNUNET_MessageHeader)},
 314   {NULL, 0, 0}
 315 };
 316
 317
 318 /**
 319  * Method called whenever another peer has added us to a tunnel
 320  * the other peer initiated.
 321  *
 322  * @param cls closure
 323  * @param tunnel new handle to the tunnel
 324  * @param initiator peer that started the tunnel
 325  * @param atsi performance information for the tunnel
 326  * @return initial tunnel context for the tunnel
 327  *         (can be NULL -- that's not an error)
 328  */
 329 static void *
 330 incoming_tunnel (void *cls, struct GNUNET_MESH_Tunnel *tunnel,
 331                  const struct GNUNET_PeerIdentity *initiator,
 332                  const struct GNUNET_ATS_Information *atsi)
 333 {
 334   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 335               "***************** test: Incoming tunnel from %s to peer %d\n",
 336               GNUNET_i2s (initiator), (long) cls);
 337   ok++;
 338   if ((long) cls == 1L)
 339     incoming_t = tunnel;
 340   else
 341     incoming_t2 = tunnel;
 342   if (GNUNET_SCHEDULER_NO_TASK != disconnect_task)
 343   {
 344     GNUNET_SCHEDULER_cancel (disconnect_task);
 345     disconnect_task =
 346         GNUNET_SCHEDULER_add_delayed (SHORT_TIME, &disconnect_mesh_peers, NULL);
 347   }
 348   return NULL;
 349 }
 350
 351 /**
 352  * Function called whenever an inbound tunnel is destroyed.  Should clean up
 353  * any associated state.
 354  *
 355  * @param cls closure (set from GNUNET_MESH_connect)
 356  * @param tunnel connection to the other end (henceforth invalid)
 357  * @param tunnel_ctx place where local state associated
 358  *                   with the tunnel is stored
 359  */
 360 static void
 361 tunnel_cleaner (void *cls, const struct GNUNET_MESH_Tunnel *tunnel,
 362                 void *tunnel_ctx)
 363 {
 364   long i = (long) cls;
 365
 366   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 367               "***************** test: Incoming tunnel disconnected at peer %d\n",
 368               i);
 369   if (2L == i)
 370     ok++;
 371   else if (3L == i)
 372     ok++;
 373   else
 374     GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 375                 "***************** test: Unknown peer! %d\n", i);
 376   peers_in_tunnel--;
 377   if (peers_in_tunnel > 0)
 378     return;
 379
 380   if (GNUNET_SCHEDULER_NO_TASK != disconnect_task)
 381   {
 382     GNUNET_SCHEDULER_cancel (disconnect_task);
 383     disconnect_task = GNUNET_SCHEDULER_add_now (&disconnect_mesh_peers, NULL);
 384   }
 385
 386   return;
 387 }
 388
 389
 390 /**
 391  * Method called whenever a tunnel falls apart.
 392  *
 393  * @param cls closure
 394  * @param peer peer identity the tunnel stopped working with
 395  */
 396 static void
 397 dh (void *cls, const struct GNUNET_PeerIdentity *peer)
 398 {
 399   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 400               "***************** test: peer %s disconnected\n",
 401               GNUNET_i2s (peer));
 402   return;
 403 }
 404
 405
 406 /**
 407  * Method called whenever a peer connects to a tunnel.
 408  *
 409  * @param cls closure
 410  * @param peer peer identity the tunnel was created to, NULL on timeout
 411  * @param atsi performance data for the connection
 412  */
 413 static void
 414 ch (void *cls, const struct GNUNET_PeerIdentity *peer,
 415     const struct GNUNET_ATS_Information *atsi)
 416 {
 417   struct GNUNET_PeerIdentity *dest;
 418
 419   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 420               "***************** test: peer %s connected\n", GNUNET_i2s (peer));
 421
 422   if (0 == memcmp (&d2->id, peer, sizeof (d2->id)) && (long) cls == 1L)
 423     ok++;
 424   if (test == MULTICAST && 0 == memcmp (&d3->id, peer, sizeof (d3->id)) &&
 425       (long) cls == 1L)
 426     ok++;
 427   switch (test)
 428   {
 429   case UNICAST:
 430     dest = &d2->id;
 431     break;
 432   case MULTICAST:
 433     peers_in_tunnel++;
 434     if (peers_in_tunnel < 2)
 435       return;
 436     dest = NULL;
 437     break;
 438   default:
 439     return;
 440   }
 441   if (GNUNET_SCHEDULER_NO_TASK != disconnect_task)
 442   {
 443     GNUNET_SCHEDULER_cancel (disconnect_task);
 444     disconnect_task =
 445         GNUNET_SCHEDULER_add_delayed (SHORT_TIME, &disconnect_mesh_peers, NULL);
 446     GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 447                 "***************** test: Sending data...\n");
 448     peers_responded = 0;
 449     GNUNET_MESH_notify_transmit_ready (t, GNUNET_NO, 0,
 450                                        GNUNET_TIME_UNIT_FOREVER_REL, dest,
 451                                        sizeof (struct GNUNET_MessageHeader),
 452                                        &tmt_rdy, (void *) 1L);
 453   }
 454   else
 455   {
 456     GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 457                 "***************** test: Disconnect already run?\n");
 458     GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 459                 "***************** test: Aborting...\n");
 460   }
 461   return;
 462 }
 463
 464
 465 static void
 466 do_test (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
 467 {
 468   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "***************** test: test_task\n");
 469   if (test == MULTICAST)
 470   {
 471     GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 472                 "***************** test: add peer 3\n");
 473     GNUNET_MESH_peer_request_connect_add (t, &d3->id);
 474   }
 475   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "***************** test: add peer 2\n");
 476   GNUNET_MESH_peer_request_connect_add (t, &d2->id);
 477   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 478               "***************** test: schedule timeout in 90s\n");
 479   if (GNUNET_SCHEDULER_NO_TASK != disconnect_task)
 480   {
 481     GNUNET_SCHEDULER_cancel (disconnect_task);
 482     disconnect_task =
 483         GNUNET_SCHEDULER_add_delayed (SHORT_TIME, &disconnect_mesh_peers, NULL);
 484   }
 485 }
 486
 487
 488 /**
 489  * Prototype of a callback function indicating that two peers
 490  * are currently connected.
 491  *
 492  * @param cls closure
 493  * @param first peer id for first daemon
 494  * @param second peer id for the second daemon
 495  * @param distance distance between the connected peers
 496  * @param emsg error message (NULL on success)
 497  */
 498 void
 499 topo_cb (void *cls, const struct GNUNET_PeerIdentity *first,
 500          const struct GNUNET_PeerIdentity *second, const char *emsg)
 501 {
 502   GNUNET_PEER_Id p1;
 503   GNUNET_PEER_Id p2;
 504   struct GNUNET_PeerIdentity id;
 505
 506   GNUNET_PEER_resolve (1, &id);
 507   p1 = GNUNET_PEER_search (first);
 508   if (p1 == pid1)
 509   {
 510     p2 = GNUNET_PEER_search (second);
 511     if (p2 == 0 || p2 > num_peers)
 512     {
 513       GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
 514                   "***************** test: %s is UNKNOWN!? (%u)\n",
 515                   GNUNET_i2s (second), p2);
 516       return;
 517     }
 518     mesh_peers[p2]++;
 519     GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 520                 "***************** test: %s IS a neighbor\n",
 521                 GNUNET_i2s (second));
 522     return;
 523   }
 524   p1 = GNUNET_PEER_search (second);
 525   if (p1 == pid1)
 526   {
 527     p2 = GNUNET_PEER_search (first);
 528     if (p2 == 0 || p2 > num_peers)
 529     {
 530       GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
 531                   "***************** test: %s is UNKNOWN!? (%u)\n",
 532                   GNUNET_i2s (first), p2);
 533       return;
 534     }
 535     mesh_peers[p2]++;
 536     GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 537                 "***************** test: %s IS a neighbor\n",
 538                 GNUNET_i2s (first));
 539     return;
 540   }
 541 }
 542
 543 /**
 544  * connect_mesh_service: connect to the mesh service of one of the peers
 545  *
 546  */
 547 static void
 548 connect_mesh_service (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
 549 {
 550   GNUNET_MESH_ApplicationType app;
 551   unsigned int i;
 552   struct GNUNET_PeerIdentity id;
 553
 554   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 555               "***************** test: connect_mesh_service\n");
 556
 557   for (i = 1; i <= num_peers; i++)
 558   {
 559     GNUNET_PEER_resolve (i, &id);
 560     GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 561                 "***************** test:   peer %s has %u conns to d1\n",
 562                 GNUNET_i2s (&id), mesh_peers[i]);
 563     if (mesh_peers[i] == 0)
 564       break;
 565   }
 566   GNUNET_assert (i < num_peers);
 567   d2 = GNUNET_TESTING_daemon_get_by_id (pg, &id);
 568   if (test == MULTICAST)
 569   {
 570     for (i++; i <= num_peers; i++)
 571     {
 572       GNUNET_PEER_resolve (i, &id);
 573       GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 574                   "***************** test:   peer %s has %u conns to d1\n",
 575                   GNUNET_i2s (&id), mesh_peers[i]);
 576       if (mesh_peers[i] == 0)
 577         break;
 578     }
 579     GNUNET_assert (i < num_peers);
 580     d3 = GNUNET_TESTING_daemon_get_by_id (pg, &id);
 581   }
 582   app = (GNUNET_MESH_ApplicationType) 0;
 583
 584 #if VERBOSE
 585   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 586               "***************** test: connecting to mesh service of peer %s (%u)\n",
 587               GNUNET_i2s (&d1->id), mesh_peers[0]);
 588   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 589               "***************** test: connecting to mesh service of peer %s (%u)\n",
 590               GNUNET_i2s (&d2->id), i);
 591   if (test == MULTICAST)
 592   {
 593     GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 594                 "***************** test: connecting to mesh service of peer %s (%u)\n",
 595                 GNUNET_i2s (&d3->id), i);
 596   }
 597 #endif
 598   h1 = GNUNET_MESH_connect (d1->cfg, 10, (void *) 1L, NULL, &tunnel_cleaner,
 599                             handlers, &app);
 600   h2 = GNUNET_MESH_connect (d2->cfg, 10, (void *) 2L, &incoming_tunnel,
 601                             &tunnel_cleaner, handlers, &app);
 602   if (test == MULTICAST)
 603   {
 604     h3 = GNUNET_MESH_connect (d3->cfg, 10, (void *) 3L, &incoming_tunnel,
 605                               &tunnel_cleaner, handlers, &app);
 606   }
 607   t = GNUNET_MESH_tunnel_create (h1, NULL, &ch, &dh, (void *) 1L);
 608   peers_in_tunnel = 0;
 609   test_task =
 610       GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply
 611                                     (GNUNET_TIME_UNIT_SECONDS, 6), &do_test,
 612                                     NULL);
 613 }
 614
 615
 616
 617 /**
 618  * peergroup_ready: start test when all peers are connected
 619  * @param cls closure
 620  * @param emsg error message
 621  */
 622 static void
 623 peergroup_ready (void *cls, const char *emsg)
 624 {
 625   char *buf;
 626   int buf_len;
 627   unsigned int i;
 628
 629   if (emsg != NULL)
 630   {
 631     GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 632                 "***************** test: Peergroup callback called with error, aborting test!\n");
 633     GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 634                 "***************** test: Error from testing: `%s'\n", emsg);
 635     ok--;
 636     GNUNET_TESTING_daemons_stop (pg, TIMEOUT, &shutdown_callback, NULL);
 637     return;
 638   }
 639 #if VERBOSE
 640   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 641               "************************************************************\n");
 642   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 643               "***************** test: Peer Group started successfully!\n");
 644   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 645               "***************** test: Have %u connections\n",
 646               total_connections);
 647 #endif
 648
 649   if (data_file != NULL)
 650   {
 651     buf = NULL;
 652     buf_len = GNUNET_asprintf (&buf, "CONNECTIONS_0: %u\n", total_connections);
 653     if (buf_len > 0)
 654       GNUNET_DISK_file_write (data_file, buf, buf_len);
 655     GNUNET_free (buf);
 656   }
 657   peers_running = GNUNET_TESTING_daemons_running (pg);
 658   for (i = 0; i < num_peers; i++)
 659   {
 660     GNUNET_PEER_Id peer_id;
 661
 662     d1 = GNUNET_TESTING_daemon_get (pg, i);
 663     peer_id = GNUNET_PEER_intern (&d1->id);
 664     GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "***************** test:   %u: %s\n",
 665                 peer_id, GNUNET_i2s (&d1->id));
 666   }
 667   d1 = GNUNET_TESTING_daemon_get (pg, 0);
 668   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 669               "***************** test: Peer looking: %s\n",
 670               GNUNET_i2s (&d1->id));
 671   pid1 = GNUNET_PEER_intern (&d1->id);
 672   mesh_peers[pid1] = 100;
 673   GNUNET_TESTING_get_topology (pg, &topo_cb, NULL);
 674
 675   GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply
 676                                 (GNUNET_TIME_UNIT_SECONDS, 4),
 677                                 &connect_mesh_service, NULL);
 678   disconnect_task =
 679       GNUNET_SCHEDULER_add_delayed (wait_time, &disconnect_mesh_peers, NULL);
 680
 681 }
 682
 683
 684 /**
 685  * Function that will be called whenever two daemons are connected by
 686  * the testing library.
 687  *
 688  * @param cls closure
 689  * @param first peer id for first daemon
 690  * @param second peer id for the second daemon
 691  * @param distance distance between the connected peers
 692  * @param first_cfg config for the first daemon
 693  * @param second_cfg config for the second daemon
 694  * @param first_daemon handle for the first daemon
 695  * @param second_daemon handle for the second daemon
 696  * @param emsg error message (NULL on success)
 697  */
 698 static void
 699 connect_cb (void *cls, const struct GNUNET_PeerIdentity *first,
 700             const struct GNUNET_PeerIdentity *second, uint32_t distance,
 701             const struct GNUNET_CONFIGURATION_Handle *first_cfg,
 702             const struct GNUNET_CONFIGURATION_Handle *second_cfg,
 703             struct GNUNET_TESTING_Daemon *first_daemon,
 704             struct GNUNET_TESTING_Daemon *second_daemon, const char *emsg)
 705 {
 706   if (emsg == NULL)
 707   {
 708     total_connections++;
 709   }
 710   else
 711   {
 712     GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 713                 "***************** test: Problem with new connection (%s)\n",
 714                 emsg);
 715     GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "***************** test:   (%s)\n",
 716                 GNUNET_i2s (first));
 717     GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "***************** test:   (%s)\n",
 718                 GNUNET_i2s (second));
 719   }
 720
 721 }
 722
 723
 724 /**
 725  * run: load configuration options and schedule test to run (start peergroup)
 726  * @param cls closure
 727  * @param args argv
 728  * @param cfgfile configuration file name (can be NULL)
 729  * @param cfg configuration handle
 730  */
 731 static void
 732 run (void *cls, char *const *args, const char *cfgfile,
 733      const struct GNUNET_CONFIGURATION_Handle *cfg)
 734 {
 735   char *temp_str;
 736   struct GNUNET_TESTING_Host *hosts;
 737   char *data_filename;
 738
 739   ok = 0;
 740   testing_cfg = GNUNET_CONFIGURATION_dup (cfg);
 741
 742   GNUNET_log_setup ("test_mesh_small",
 743 #if VERBOSE
 744                     "DEBUG",
 745 #else
 746                     "WARNING",
 747 #endif
 748                     NULL);
 749
 750 #if VERBOSE
 751   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 752               "***************** test: Starting daemons.\n");
 753   GNUNET_CONFIGURATION_set_value_string (testing_cfg, "testing",
 754                                          "use_progressbars", "YES");
 755 #endif
 756
 757   if (GNUNET_OK !=
 758       GNUNET_CONFIGURATION_get_value_number (testing_cfg, "testing",
 759                                              "num_peers", &num_peers))
 760   {
 761     GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
 762                 "Option TESTING:NUM_PEERS is required!\n");
 763     return;
 764   }
 765
 766   mesh_peers = GNUNET_malloc (sizeof (uint16_t) * (num_peers + 1));
 767
 768   if (GNUNET_OK !=
 769       GNUNET_CONFIGURATION_get_value_time (testing_cfg, "test_mesh_small",
 770                                            "WAIT_TIME", &wait_time))
 771   {
 772     GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
 773                 "Option test_mesh_small:wait_time is required!\n");
 774     return;
 775   }
 776
 777   if (GNUNET_OK !=
 778       GNUNET_CONFIGURATION_get_value_string (testing_cfg, "testing",
 779                                              "topology_output_file",
 780                                              &topology_file))
 781   {
 782     GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
 783                 "Option test_mesh_small:topology_output_file is required!\n");
 784     return;
 785   }
 786
 787   if (GNUNET_OK ==
 788       GNUNET_CONFIGURATION_get_value_string (testing_cfg, "test_mesh_small",
 789                                              "data_output_file",
 790                                              &data_filename))
 791   {
 792     data_file =
 793         GNUNET_DISK_file_open (data_filename,
 794                                GNUNET_DISK_OPEN_READWRITE |
 795                                GNUNET_DISK_OPEN_CREATE,
 796                                GNUNET_DISK_PERM_USER_READ |
 797                                GNUNET_DISK_PERM_USER_WRITE);
 798     if (data_file == NULL)
 799     {
 800       GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Failed to open %s for output!\n",
 801                   data_filename);
 802       GNUNET_free (data_filename);
 803     }
 804   }
 805
 806   if (GNUNET_YES ==
 807       GNUNET_CONFIGURATION_get_value_string (cfg, "test_mesh_small",
 808                                              "output_file", &temp_str))
 809   {
 810     output_file =
 811         GNUNET_DISK_file_open (temp_str,
 812                                GNUNET_DISK_OPEN_READWRITE |
 813                                GNUNET_DISK_OPEN_CREATE,
 814                                GNUNET_DISK_PERM_USER_READ |
 815                                GNUNET_DISK_PERM_USER_WRITE);
 816     if (output_file == NULL)
 817       GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Failed to open %s for output!\n",
 818                   temp_str);
 819   }
 820   GNUNET_free_non_null (temp_str);
 821
 822   hosts = GNUNET_TESTING_hosts_load (testing_cfg);
 823
 824   pg = GNUNET_TESTING_peergroup_start (testing_cfg, num_peers, TIMEOUT,
 825                                        &connect_cb, &peergroup_ready, NULL,
 826                                        hosts);
 827   GNUNET_assert (pg != NULL);
 828   shutdown_handle =
 829       GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_get_forever (),
 830                                     &shutdown_task, NULL);
 831 }
 832
 833
 834
 835 /**
 836  * test_mesh_small command line options
 837  */
 838 static struct GNUNET_GETOPT_CommandLineOption options[] = {
 839   {'V', "verbose", NULL,
 840    gettext_noop ("be verbose (print progress information)"),
 841    0, &GNUNET_GETOPT_set_one, &verbose},
 842   GNUNET_GETOPT_OPTION_END
 843 };
 844
 845
 846 /**
 847  * Main: start test
 848  */
 849 int
 850 main (int argc, char *argv[])
 851 {
 852   char *const argv2[] = {
 853     argv[0],
 854     "-c",
 855     "test_mesh_small.conf",
 856 #if VERBOSE
 857     "-L",
 858     "DEBUG",
 859 #endif
 860     NULL
 861   };
 862
 863   /* Each peer is supposed to generate the following callbacks:
 864    * 1 incoming tunnel (@dest)
 865    * 1 connected peer (@orig)
 866    * 1 received data packet (@dest)
 867    * 1 received data packet (@orig)
 868    * 1 received tunnel destroy (@dest)
 869    * _________________________________
 870    * 5 x ok expected per peer
 871    */
 872   int ok_goal;
 873
 874   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "***************** test: Start\n");
 875   if (strstr (argv[0], "test_mesh_small_unicast") != NULL)
 876   {
 877     GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "***************** test: UNICAST\n");
 878     test = UNICAST;
 879     ok_goal = 5;
 880   }
 881   else if (strstr (argv[0], "test_mesh_small_multicast") != NULL)
 882   {
 883     GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "***************** test: MULTICAST\n");
 884     test = MULTICAST;
 885     ok_goal = 10;
 886   }
 887   else
 888   {
 889     GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "***************** test: UNKNOWN\n");
 890     test = SETUP;
 891     ok_goal = 0;
 892   }
 893
 894   GNUNET_PROGRAM_run ((sizeof (argv2) / sizeof (char *)) - 1, argv2,
 895                       "test_mesh_small",
 896                       gettext_noop ("Test mesh in a small network."), options,
 897                       &run, NULL);
 898 #if REMOVE_DIR
 899   GNUNET_DISK_directory_remove ("/tmp/test_mesh_small");
 900 #endif
 901   if (ok_goal > ok)
 902   {
 903     GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
 904                 "***************** test: FAILED! (%d/%d)\n", ok, ok_goal);
 905     return 1;
 906   }
 907   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "***************** test: success\n");
 908   return 0;
 909 }
 910
 911 /* end of test_mesh_small.c */