src/testing/test_testing_topology.c

   1 /*
   2      This file is part of GNUnet.
   3      (C) 2009 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 testing/test_testing_topology.c
  22  * @brief base testcase for testing all the topologies provided
  23  */
  24 #include "platform.h"
  25 #include "gnunet_testing_lib.h"
  26 #include "gnunet_core_service.h"
  27 #include "gnunet_os_lib.h"
  28
  29 #define VERBOSE GNUNET_YES
  30
  31 #define DELAY_FOR_LOGGING GNUNET_NO
  32
  33 /**
  34  * How long until we fail the whole testcase?
  35  */
  36 #define TEST_TIMEOUT GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 240)
  37
  38 /**
  39  * How long until we give up on starting the peers?
  40  */
  41 #define TIMEOUT GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 500)
  42
  43 #define SECONDS_PER_PEER_START 45
  44
  45 #define DEFAULT_NUM_PEERS 4
  46
  47 #define MAX_OUTSTANDING_CONNECTIONS 100
  48
  49 static float fail_percentage = 0.05;
  50
  51 static int ok;
  52
  53 static unsigned long long num_peers;
  54
  55 static unsigned int topology_connections;
  56
  57 static unsigned int total_connections;
  58
  59 static unsigned int failed_connections;
  60
  61 static unsigned int total_server_connections;
  62
  63 static unsigned int total_messages_received;
  64
  65 static unsigned int expected_messages;
  66
  67 static unsigned int expected_connections;
  68
  69 static unsigned long long peers_left;
  70
  71 static struct GNUNET_TESTING_PeerGroup *pg;
  72
  73 static struct GNUNET_SCHEDULER_Handle *sched;
  74
  75 const struct GNUNET_CONFIGURATION_Handle *main_cfg;
  76
  77 GNUNET_SCHEDULER_TaskIdentifier die_task;
  78
  79 static char *dotOutFileName;
  80
  81 static struct GNUNET_TIME_Relative settle_time;
  82
  83 static FILE *dotOutFile;
  84
  85 static char *topology_string;
  86
  87 static char *blacklist_transports;
  88
  89 static int transmit_ready_scheduled;
  90
  91 static int transmit_ready_failed;
  92
  93 static int transmit_ready_called;
  94
  95 static unsigned int modnum;
  96
  97 static unsigned int dotnum;
  98
  99 static enum GNUNET_TESTING_Topology topology;
 100
 101 static enum GNUNET_TESTING_Topology blacklist_topology = GNUNET_TESTING_TOPOLOGY_NONE; /* Don't do any blacklisting */
 102
 103 static enum GNUNET_TESTING_Topology connection_topology = GNUNET_TESTING_TOPOLOGY_NONE; /* NONE actually means connect all allowed peers */
 104
 105 static enum GNUNET_TESTING_TopologyOption connect_topology_option = GNUNET_TESTING_TOPOLOGY_OPTION_ALL;
 106
 107 static double connect_topology_option_modifier = 0.0;
 108
 109 static char *test_directory;
 110
 111 #define MTYPE 12345
 112
 113 struct GNUNET_TestMessage
 114 {
 115   /**
 116    * Header of the message
 117    */
 118   struct GNUNET_MessageHeader header;
 119
 120   /**
 121    * Unique identifier for this message.
 122    */
 123   uint32_t uid;
 124 };
 125
 126 struct TestMessageContext
 127 {
 128   /* This is a linked list */
 129   struct TestMessageContext *next;
 130
 131   /* Handle to the sending peer core */
 132   struct GNUNET_CORE_Handle *peer1handle;
 133
 134   /* Handle to the receiving peer core */
 135   struct GNUNET_CORE_Handle *peer2handle;
 136
 137   /* Handle to the sending peer daemon */
 138   struct GNUNET_TESTING_Daemon *peer1;
 139
 140   /* Handle to the receiving peer daemon */
 141   struct GNUNET_TESTING_Daemon *peer2;
 142
 143   /* Identifier for this message, so we don't disconnect other peers! */
 144   uint32_t uid;
 145
 146   /* Task for disconnecting cores, allow task to be cancelled on shutdown */
 147   GNUNET_SCHEDULER_TaskIdentifier disconnect_task;
 148
 149 };
 150
 151 static struct TestMessageContext *test_messages;
 152
 153 /**
 154  * Check whether peers successfully shut down.
 155  */
 156 void shutdown_callback (void *cls,
 157                         const char *emsg)
 158 {
 159   if (emsg != NULL)
 160     {
 161 #if VERBOSE
 162       GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 163                   "Shutdown of peers failed!\n");
 164 #endif
 165       if (ok == 0)
 166         ok = 666;
 167     }
 168   else
 169     {
 170 #if VERBOSE
 171       GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 172                   "All peers successfully shut down!\n");
 173 #endif
 174     }
 175 }
 176
 177 #if DELAY_FOR_LOGGING
 178 static void gather_log_data ()
 179 {
 180   char *peer_number;
 181   char *connect_number;
 182   pid_t mem_process;
 183   GNUNET_asprintf(&peer_number, "%llu", num_peers);
 184   GNUNET_asprintf(&connect_number, "%llu", expected_connections);
 185   mem_process = GNUNET_OS_start_process (NULL, NULL, "./memsize.pl",
 186                            "memsize.pl", "totals.txt", peer_number, connect_number, NULL);
 187   GNUNET_OS_process_wait(mem_process);
 188 }
 189
 190 #endif
 191
 192 static void
 193 finish_testing ()
 194 {
 195   GNUNET_assert (pg != NULL);
 196   struct TestMessageContext *pos;
 197   struct TestMessageContext *free_pos;
 198 #if VERBOSE
 199   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 200               "Called finish testing, stopping daemons.\n");
 201 #endif
 202
 203   pos = test_messages;
 204   while (pos != NULL)
 205     {
 206       if (pos->peer1handle != NULL)
 207         {
 208           GNUNET_CORE_disconnect(pos->peer1handle);
 209           pos->peer1handle = NULL;
 210         }
 211       if (pos->peer2handle != NULL)
 212         {
 213           GNUNET_CORE_disconnect(pos->peer2handle);
 214           pos->peer2handle = NULL;
 215         }
 216       free_pos = pos;
 217       pos = pos->next;
 218       if (free_pos->disconnect_task != GNUNET_SCHEDULER_NO_TASK)
 219         {
 220           GNUNET_SCHEDULER_cancel(sched, free_pos->disconnect_task);
 221         }
 222       GNUNET_free(free_pos);
 223     }
 224 #if VERBOSE
 225     GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 226                 "Transmit_ready's scheduled %d, failed %d, transmit_ready's called %d\n", transmit_ready_scheduled, transmit_ready_failed, transmit_ready_called);
 227 #endif
 228
 229 #if VERBOSE
 230           GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 231                       "Calling daemons_stop\n");
 232 #endif
 233   GNUNET_TESTING_daemons_stop (pg, TIMEOUT, &shutdown_callback, NULL);
 234
 235   if (dotOutFile != NULL)
 236     {
 237       fprintf(dotOutFile, "}");
 238       fclose(dotOutFile);
 239     }
 240
 241   ok = 0;
 242 }
 243
 244
 245 static void
 246 disconnect_cores (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
 247 {
 248   struct TestMessageContext *pos = cls;
 249
 250   /* Disconnect from the respective cores */
 251 #if VERBOSE > 1
 252   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 253               "Disconnecting from peer 1 `%4s'\n", GNUNET_i2s (&pos->peer1->id));
 254 #endif
 255   if (pos->peer1handle != NULL)
 256     GNUNET_CORE_disconnect(pos->peer1handle);
 257 #if VERBOSE > 1
 258   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 259               "Disconnecting from peer 2 `%4s'\n", GNUNET_i2s (&pos->peer2->id));
 260 #endif
 261   if (pos->peer2handle != NULL)
 262     GNUNET_CORE_disconnect(pos->peer2handle);
 263   /* Set handles to NULL so test case can be ended properly */
 264   pos->peer1handle = NULL;
 265   pos->peer2handle = NULL;
 266   pos->disconnect_task = GNUNET_SCHEDULER_NO_TASK;
 267   /* Decrement total connections so new can be established */
 268   total_server_connections -= 2;
 269 }
 270
 271 static void stats_finished (void *cls, int result)
 272 {
 273   fprintf(stderr, "Finished getting all peers statistics!\n");
 274   GNUNET_SCHEDULER_add_now (sched, &finish_testing, NULL);
 275 }
 276
 277 /**
 278  * Callback function to process statistic values.
 279  *
 280  * @param cls closure
 281  * @param peer the peer the statistics belong to
 282  * @param subsystem name of subsystem that created the statistic
 283  * @param name the name of the datum
 284  * @param value the current value
 285  * @param is_persistent GNUNET_YES if the value is persistent, GNUNET_NO if not
 286  * @return GNUNET_OK to continue, GNUNET_SYSERR to abort iteration
 287  */
 288 static int stats_print  (void *cls,
 289                          const struct GNUNET_PeerIdentity *peer,
 290                          const char *subsystem,
 291                          const char *name,
 292                          uint64_t value,
 293                          int is_persistent)
 294 {
 295   GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "%s:%s:%s -- %llu\n", GNUNET_i2s(peer), subsystem, name, value);
 296   return GNUNET_OK;
 297 }
 298
 299 static void topology_cb (void *cls,
 300                   const struct GNUNET_PeerIdentity *first,
 301                   const struct GNUNET_PeerIdentity *second,
 302                   struct GNUNET_TIME_Relative latency,
 303                   uint32_t distance,
 304                   const char *emsg)
 305 {
 306   FILE *outfile;
 307   outfile = cls;
 308   if (first != NULL)
 309   {
 310     if (outfile != NULL)
 311     {
 312       fprintf(outfile, "\t\"%s\" -- ", GNUNET_i2s(first));
 313       fprintf(outfile, "\"%s\";\n", GNUNET_i2s(second));
 314     }
 315     topology_connections++;
 316   }
 317   else
 318     {
 319       fprintf(stderr, "Finished iterating over topology, %d total connections!\n", topology_connections);
 320       if (outfile != NULL)
 321       {
 322         fprintf(outfile, "}\n");
 323         fclose(outfile);
 324         GNUNET_TESTING_get_statistics(pg, &stats_finished, &stats_print, NULL);
 325         //GNUNET_SCHEDULER_add_now (sched, &finish_testing, NULL);
 326       }
 327     }
 328 }
 329
 330 static int
 331 process_mtype (void *cls,
 332                const struct GNUNET_PeerIdentity *peer,
 333                const struct GNUNET_MessageHeader *message,
 334                struct GNUNET_TIME_Relative latency,
 335                uint32_t distance)
 336 {
 337   char *dotOutFileNameFinished;
 338   FILE *dotOutFileFinished;
 339   struct TestMessageContext *pos = cls;
 340   struct GNUNET_TestMessage *msg = (struct GNUNET_TestMessage *)message;
 341   if (pos->uid != ntohl(msg->uid))
 342     return GNUNET_OK;
 343
 344 #if VERBOSE
 345     if ((total_messages_received) % modnum == 0)
 346       {
 347         if (total_messages_received == 0)
 348           fprintf (stdout, "0%%");
 349         else
 350           fprintf (stdout, "%d%%",
 351                    (int) (((float) total_messages_received /
 352                            expected_messages) * 100));
 353
 354       }
 355     else if (total_messages_received % dotnum == 0)
 356       {
 357         fprintf (stdout, ".");
 358       }
 359     fflush (stdout);
 360 #endif
 361
 362   total_messages_received++;
 363 #if VERBOSE > 1
 364   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 365               "Received message from `%4s', type %d.\n", GNUNET_i2s (peer), ntohs(message->type));
 366   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 367               "Total messages received %d, expected %d.\n", total_messages_received, expected_messages);
 368 #endif
 369
 370   if (total_messages_received == expected_messages)
 371     {
 372 #if VERBOSE
 373       fprintf(stdout, "100%%]\n");
 374 #endif
 375       GNUNET_SCHEDULER_cancel (sched, die_task);
 376       GNUNET_asprintf(&dotOutFileNameFinished, "%s.dot", "final_topology");
 377       dotOutFileFinished = fopen (dotOutFileNameFinished, "w");
 378       GNUNET_free(dotOutFileNameFinished);
 379       if (dotOutFileFinished != NULL)
 380       {
 381         fprintf(dotOutFileFinished, "strict graph G {\n");
 382       }
 383       topology_connections = 0;
 384       GNUNET_TESTING_get_topology (pg, &topology_cb, dotOutFileFinished);
 385       //GNUNET_SCHEDULER_add_now (sched, &finish_testing, NULL);
 386     }
 387   else
 388     {
 389       pos->disconnect_task = GNUNET_SCHEDULER_add_now(sched, &disconnect_cores, pos);
 390     }
 391
 392   return GNUNET_OK;
 393 }
 394
 395 static void
 396 end_badly (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
 397 {
 398   char *msg = cls;
 399   GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
 400               "End badly was called (%s)... stopping daemons.\n", msg);
 401   struct TestMessageContext *pos;
 402   struct TestMessageContext *free_pos;
 403
 404   pos = test_messages;
 405   while (pos != NULL)
 406     {
 407       if (pos->peer1handle != NULL)
 408         {
 409           GNUNET_CORE_disconnect(pos->peer1handle);
 410           pos->peer1handle = NULL;
 411         }
 412       if (pos->peer2handle != NULL)
 413         {
 414           GNUNET_CORE_disconnect(pos->peer2handle);
 415           pos->peer2handle = NULL;
 416         }
 417       free_pos = pos;
 418       pos = pos->next;
 419       GNUNET_free(free_pos);
 420     }
 421
 422 #if VERBOSE
 423     GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 424                 "Transmit_ready's scheduled %d, failed %d, transmit_ready's called %d\n", transmit_ready_scheduled, transmit_ready_failed, transmit_ready_called);
 425     GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 426                 "Total messages received %d, expected %d.\n", total_messages_received, expected_messages);
 427 #endif
 428
 429   if (pg != NULL)
 430     {
 431       GNUNET_TESTING_daemons_stop (pg, TIMEOUT, &shutdown_callback, NULL);
 432       ok = 7331;                /* Opposite of leet */
 433     }
 434   else
 435     ok = 401;                   /* Never got peers started */
 436
 437   if (dotOutFile != NULL)
 438     {
 439       fprintf(dotOutFile, "}");
 440       fclose(dotOutFile);
 441     }
 442 }
 443
 444 static size_t
 445 transmit_ready (void *cls, size_t size, void *buf)
 446 {
 447   struct GNUNET_TestMessage *m;
 448   struct TestMessageContext *pos = cls;
 449
 450   GNUNET_assert (buf != NULL);
 451   m = (struct GNUNET_TestMessage *) buf;
 452   m->header.type = htons (MTYPE);
 453   m->header.size = htons (sizeof (struct GNUNET_TestMessage));
 454   m->uid = htonl(pos->uid);
 455   transmit_ready_called++;
 456 #if VERBOSE > 1
 457   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 458               "transmit ready for peer %s\ntransmit_ready's scheduled %d, transmit_ready's called %d\n", GNUNET_i2s(&pos->peer1->id), transmit_ready_scheduled, transmit_ready_called);
 459 #endif
 460   return sizeof (struct GNUNET_TestMessage);
 461 }
 462
 463
 464 static struct GNUNET_CORE_MessageHandler no_handlers[] = {
 465   {NULL, 0, 0}
 466 };
 467
 468 static struct GNUNET_CORE_MessageHandler handlers[] = {
 469   {&process_mtype, MTYPE, sizeof (struct GNUNET_TestMessage)},
 470   {NULL, 0, 0}
 471 };
 472
 473 static void
 474 init_notify_peer2 (void *cls,
 475              struct GNUNET_CORE_Handle *server,
 476              const struct GNUNET_PeerIdentity *my_identity,
 477              const struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded *publicKey)
 478 {
 479   struct TestMessageContext *pos = cls;
 480
 481 #if VERBOSE > 1
 482   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 483               "Core connection to `%4s' established, scheduling message send\n",
 484               GNUNET_i2s (my_identity));
 485 #endif
 486   total_server_connections++;
 487
 488   if (NULL == GNUNET_CORE_notify_transmit_ready (pos->peer1handle,
 489                                                  0,
 490                                                  TIMEOUT,
 491                                                  &pos->peer2->id,
 492                                                  sizeof (struct GNUNET_TestMessage),
 493                                                  &transmit_ready, pos))
 494     {
 495       GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 496                   "RECEIVED NULL when asking core (1) for transmission to peer `%4s'\n",
 497                   GNUNET_i2s (&pos->peer2->id));
 498       transmit_ready_failed++;
 499     }
 500   else
 501     {
 502       transmit_ready_scheduled++;
 503     }
 504 }
 505
 506
 507 static void
 508 init_notify_peer1 (void *cls,
 509              struct GNUNET_CORE_Handle *server,
 510              const struct GNUNET_PeerIdentity *my_identity,
 511              const struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded *publicKey)
 512 {
 513   struct TestMessageContext *pos = cls;
 514   total_server_connections++;
 515
 516 #if VERBOSE > 1
 517   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 518               "Core connection to `%4s' established, setting up handles\n",
 519               GNUNET_i2s (my_identity));
 520 #endif
 521
 522   /*
 523    * Connect to the receiving peer
 524    */
 525   pos->peer2handle = GNUNET_CORE_connect (sched,
 526                                           pos->peer2->cfg,
 527                                           TIMEOUT,
 528                                           pos,
 529                                           &init_notify_peer2,
 530                                           NULL,
 531                                           NULL,
 532                                           NULL, NULL,
 533                                           GNUNET_YES, NULL, GNUNET_YES, handlers);
 534
 535 }
 536
 537
 538 static void
 539 send_test_messages (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
 540 {
 541   struct TestMessageContext *pos = cls;
 542
 543   if ((pos == test_messages) && (settle_time.value > 0))
 544     {
 545       topology_connections = 0;
 546       GNUNET_TESTING_get_topology (pg, &topology_cb, NULL);
 547     }
 548   if ((tc->reason == GNUNET_SCHEDULER_REASON_SHUTDOWN) || (cls == NULL))
 549     return;
 550
 551   if (die_task == GNUNET_SCHEDULER_NO_TASK)
 552     {
 553       die_task = GNUNET_SCHEDULER_add_delayed (sched,
 554                                                TEST_TIMEOUT,
 555                                                &end_badly, "from send test messages (timeout)");
 556     }
 557
 558   if (total_server_connections >= MAX_OUTSTANDING_CONNECTIONS)
 559     {
 560       GNUNET_SCHEDULER_add_delayed (sched, GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 1),
 561                                     &send_test_messages, pos);
 562       return; /* Otherwise we'll double schedule messages here! */
 563     }
 564
 565   /*
 566    * Connect to the sending peer
 567    */
 568   pos->peer1handle = GNUNET_CORE_connect (sched,
 569                                           pos->peer1->cfg,
 570                                           TIMEOUT,
 571                                           pos,
 572                                           &init_notify_peer1,
 573                                           NULL, NULL,
 574                                           NULL,
 575                                           NULL,
 576                                           GNUNET_NO, NULL, GNUNET_NO, no_handlers);
 577
 578   GNUNET_assert(pos->peer1handle != NULL);
 579
 580   if (total_server_connections < MAX_OUTSTANDING_CONNECTIONS)
 581     {
 582       GNUNET_SCHEDULER_add_now (sched,
 583                                 &send_test_messages, pos->next);
 584     }
 585   else
 586     {
 587       GNUNET_SCHEDULER_add_delayed (sched, GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 1),
 588                                     &send_test_messages, pos->next);
 589     }
 590 }
 591
 592
 593 void
 594 topology_callback (void *cls,
 595                    const struct GNUNET_PeerIdentity *first,
 596                    const struct GNUNET_PeerIdentity *second,
 597                    uint32_t distance,
 598                    const struct GNUNET_CONFIGURATION_Handle *first_cfg,
 599                    const struct GNUNET_CONFIGURATION_Handle *second_cfg,
 600                    struct GNUNET_TESTING_Daemon *first_daemon,
 601                    struct GNUNET_TESTING_Daemon *second_daemon,
 602                    const char *emsg)
 603 {
 604   struct TestMessageContext *temp_context;
 605   if (emsg == NULL)
 606     {
 607 #if VERBOSE
 608     if ((total_connections) % modnum == 0)
 609       {
 610         if (total_connections == 0)
 611           fprintf (stdout, "0%%");
 612         else
 613           fprintf (stdout, "%d%%",
 614                    (int) (((float) total_connections /
 615                            expected_connections) * 100));
 616
 617       }
 618     else if (total_connections % dotnum == 0)
 619       {
 620         fprintf (stdout, ".");
 621       }
 622     fflush (stdout);
 623 #endif
 624       total_connections++;
 625 #if VERBOSE > 1
 626       GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "connected peer %s to peer %s\n",
 627                  first_daemon->shortname,
 628                  second_daemon->shortname);
 629 #endif
 630       temp_context = GNUNET_malloc(sizeof(struct TestMessageContext));
 631       temp_context->peer1 = first_daemon;
 632       temp_context->peer2 = second_daemon;
 633       temp_context->next = test_messages;
 634       temp_context->uid = total_connections;
 635       temp_context->disconnect_task = GNUNET_SCHEDULER_NO_TASK;
 636       test_messages = temp_context;
 637
 638       expected_messages++;
 639       if (dotOutFile != NULL)
 640         fprintf(dotOutFile, "\tn%s -- n%s;\n", first_daemon->shortname, second_daemon->shortname);
 641     }
 642 #if VERBOSE
 643   else
 644     {
 645       failed_connections++;
 646       GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Failed to connect peer %s to peer %s with error :\n%s\n",
 647                first_daemon->shortname,
 648                second_daemon->shortname, emsg);
 649     }
 650 #endif
 651
 652   if (total_connections == expected_connections)
 653     {
 654 #if VERBOSE
 655       fprintf(stdout, "100%%]\n");
 656 #endif
 657 #if VERBOSE
 658       GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 659                   "Created %d total connections, which is our target number!  Calling send messages.\n",
 660                   total_connections);
 661 #endif
 662       modnum = expected_messages / 4;
 663       dotnum = (expected_messages / 50) + 1;
 664       GNUNET_SCHEDULER_cancel (sched, die_task);
 665       die_task = GNUNET_SCHEDULER_NO_TASK;
 666 #if DELAY_FOR_LOGGING
 667       fprintf(stdout, "Sending test messages in 10 seconds.\n");
 668       GNUNET_SCHEDULER_add_delayed (sched,
 669                                     GNUNET_TIME_relative_multiply
 670                                     (GNUNET_TIME_UNIT_SECONDS, 10),
 671                                     &send_test_messages, test_messages);
 672       gather_log_data();
 673 #else
 674       if (settle_time.value > 0)
 675         {
 676           GNUNET_TESTING_get_topology (pg, &topology_cb, NULL);
 677         }
 678       GNUNET_SCHEDULER_add_delayed (sched, settle_time, &send_test_messages, test_messages);
 679 #endif
 680 #if VERBOSE
 681       fprintf(stdout, "Test message progress: [");
 682 #endif
 683
 684     }
 685   else if (total_connections + failed_connections == expected_connections)
 686     {
 687       if (failed_connections < (unsigned int)(fail_percentage * total_connections))
 688         {
 689           GNUNET_SCHEDULER_cancel (sched, die_task);
 690           die_task = GNUNET_SCHEDULER_NO_TASK;
 691           GNUNET_SCHEDULER_add_now (sched, &send_test_messages, test_messages);
 692         }
 693       else
 694         {
 695           GNUNET_SCHEDULER_cancel (sched, die_task);
 696           die_task = GNUNET_SCHEDULER_add_now (sched,
 697                                                &end_badly, "from topology_callback (too many failed connections)");
 698         }
 699     }
 700   else
 701     {
 702 #if VERBOSE > 1
 703       GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 704                   "Have %d total connections, %d failed connections, Want %d (at least %d)\n",
 705                   total_connections, failed_connections, expected_connections, expected_connections - (unsigned int)(fail_percentage * expected_connections));
 706 #endif
 707     }
 708 }
 709
 710 static void
 711 connect_topology ()
 712 {
 713   expected_connections = -1;
 714   if ((pg != NULL) && (peers_left == 0))
 715     {
 716       expected_connections = GNUNET_TESTING_connect_topology (pg, connection_topology, connect_topology_option, connect_topology_option_modifier);
 717 #if VERBOSE > 1
 718       GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 719                   "Have %d expected connections\n", expected_connections);
 720 #endif
 721     }
 722
 723   GNUNET_SCHEDULER_cancel (sched, die_task);
 724   if (expected_connections == GNUNET_SYSERR)
 725     {
 726       die_task = GNUNET_SCHEDULER_add_now (sched,
 727                                            &end_badly, "from connect topology (bad return)");
 728     }
 729
 730   die_task = GNUNET_SCHEDULER_add_delayed (sched,
 731                                            TEST_TIMEOUT,
 732                                            &end_badly, "from connect topology (timeout)");
 733   modnum = expected_connections / 4;
 734   dotnum = (expected_connections / 50) + 1;
 735 #if VERBOSE
 736   fprintf(stdout, "Peer connection progress: [");
 737 #endif
 738 }
 739
 740 static void
 741 create_topology ()
 742 {
 743   peers_left = num_peers; /* Reset counter */
 744   if (GNUNET_TESTING_create_topology (pg, topology, blacklist_topology, blacklist_transports) != GNUNET_SYSERR)
 745     {
 746 #if VERBOSE
 747       GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 748                   "Topology set up, now starting peers!\n");
 749       fprintf(stdout, "Daemon start progress [");
 750 #endif
 751       GNUNET_TESTING_daemons_continue_startup(pg);
 752     }
 753   else
 754     {
 755       GNUNET_SCHEDULER_cancel (sched, die_task);
 756       die_task = GNUNET_SCHEDULER_add_now (sched,
 757                                            &end_badly, "from create topology (bad return)");
 758     }
 759   GNUNET_SCHEDULER_cancel (sched, die_task);
 760   die_task = GNUNET_SCHEDULER_add_delayed (sched,
 761                                            TEST_TIMEOUT,
 762                                            &end_badly, "from continue startup (timeout)");
 763 }
 764
 765
 766 static void
 767 peers_started_callback (void *cls,
 768        const struct GNUNET_PeerIdentity *id,
 769        const struct GNUNET_CONFIGURATION_Handle *cfg,
 770        struct GNUNET_TESTING_Daemon *d, const char *emsg)
 771 {
 772   if (emsg != NULL)
 773     {
 774       GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Failed to start daemon with error: `%s'\n",
 775                   emsg);
 776       return;
 777     }
 778   GNUNET_assert (id != NULL);
 779 #if VERBOSE > 1
 780   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Started daemon %llu out of %llu\n",
 781               (num_peers - peers_left) + 1, num_peers);
 782 #endif
 783 #if VERBOSE
 784     if ((num_peers - peers_left) % modnum == 0)
 785       {
 786         if (num_peers - peers_left == 0)
 787           fprintf (stdout, "0%%");
 788         else
 789           fprintf (stdout, "%d%%",
 790                    (int) (((float) (num_peers - peers_left) /
 791                            num_peers) * 100));
 792
 793       }
 794     else if ((num_peers - peers_left) % dotnum == 0)
 795       {
 796         fprintf (stdout, ".");
 797       }
 798     fflush (stdout);
 799 #endif
 800   peers_left--;
 801   if (peers_left == 0)
 802     {
 803 #if VERBOSE
 804       fprintf(stdout, "100%%]\n");
 805 #endif
 806 #if VERBOSE
 807       GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 808                   "All %d daemons started, now connecting peers!\n",
 809                   num_peers);
 810 #endif
 811       GNUNET_SCHEDULER_cancel (sched, die_task);
 812       /* Set up task in case topology creation doesn't finish
 813        * within a reasonable amount of time */
 814       die_task = GNUNET_SCHEDULER_add_delayed (sched,
 815                                                GNUNET_TIME_relative_multiply
 816                                                (GNUNET_TIME_UNIT_MINUTES, 8),
 817                                                &end_badly, "from peers_started_callback");
 818 #if DELAY_FOR_LOGGING
 819       fprintf(stdout, "Connecting topology in 10 seconds\n");
 820       gather_log_data();
 821       GNUNET_SCHEDULER_add_delayed (sched,
 822                                     GNUNET_TIME_relative_multiply
 823                                     (GNUNET_TIME_UNIT_SECONDS, 10),
 824                                     &connect_topology, NULL);
 825 #else
 826       connect_topology ();
 827 #endif
 828       ok = 0;
 829     }
 830 }
 831
 832 /**
 833  * Callback indicating that the hostkey was created for a peer.
 834  *
 835  * @param cls NULL
 836  * @param id the peer identity
 837  * @param d the daemon handle (pretty useless at this point, remove?)
 838  * @param emsg non-null on failure
 839  */
 840 void hostkey_callback (void *cls,
 841                        const struct GNUNET_PeerIdentity *id,
 842                        struct GNUNET_TESTING_Daemon *d,
 843                        const char *emsg)
 844 {
 845   if (emsg != NULL)
 846     {
 847       GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Hostkey callback received error: %s\n", emsg);
 848     }
 849
 850 #if VERBOSE > 1
 851     GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 852                 "Hostkey (%d/%d) created for peer `%s'\n",
 853                 num_peers - peers_left, num_peers, GNUNET_i2s(id));
 854 #endif
 855
 856 #if VERBOSE
 857     if ((num_peers - peers_left) % modnum == 0)
 858       {
 859         if (num_peers - peers_left == 0)
 860           fprintf (stdout, "0%%");
 861         else
 862           fprintf (stdout, "%d%%",
 863                    (int) (((float) (num_peers - peers_left) /
 864                            num_peers) * 100));
 865
 866       }
 867     else if ((num_peers - peers_left) % dotnum == 0)
 868       {
 869         fprintf (stdout, ".");
 870       }
 871     fflush (stdout);
 872 #endif
 873     peers_left--;
 874     if (peers_left == 0)
 875       {
 876 #if VERBOSE
 877         fprintf(stdout, "100%%]\n");
 878         GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 879                     "All %d hostkeys created, now creating topology!\n",
 880                     num_peers);
 881 #endif
 882         GNUNET_SCHEDULER_cancel (sched, die_task);
 883         /* Set up task in case topology creation doesn't finish
 884          * within a reasonable amount of time */
 885         die_task = GNUNET_SCHEDULER_add_delayed (sched,
 886                                                  TIMEOUT,
 887                                                  &end_badly, "from create_topology");
 888         GNUNET_SCHEDULER_add_now(sched, &create_topology, NULL);
 889         ok = 0;
 890       }
 891 }
 892
 893 static void
 894 run (void *cls,
 895      struct GNUNET_SCHEDULER_Handle *s,
 896      char *const *args,
 897      const char *cfgfile, const struct GNUNET_CONFIGURATION_Handle *cfg)
 898 {
 899   char * topology_str;
 900   char * connect_topology_str;
 901   char * blacklist_topology_str;
 902   char * connect_topology_option_str;
 903   char * connect_topology_option_modifier_string;
 904   unsigned long long temp_settle;
 905   sched = s;
 906   ok = 1;
 907
 908   dotOutFile = fopen (dotOutFileName, "w");
 909   if (dotOutFile != NULL)
 910     {
 911       fprintf (dotOutFile, "strict graph G {\n");
 912     }
 913
 914 #if VERBOSE
 915   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 916               "Starting daemons based on config file %s\n", cfgfile);
 917 #endif
 918
 919   if (GNUNET_YES != GNUNET_CONFIGURATION_get_value_string(cfg, "paths", "servicehome", &test_directory))
 920     {
 921       ok = 404;
 922       return;
 923     }
 924
 925   if ((GNUNET_YES ==
 926       GNUNET_CONFIGURATION_get_value_string(cfg, "testing", "topology",
 927                                             &topology_str)) && (GNUNET_NO == GNUNET_TESTING_topology_get(&topology, topology_str)))
 928     {
 929       GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
 930                   "Invalid topology `%s' given for section %s option %s\n", topology_str, "TESTING", "TOPOLOGY");
 931       topology = GNUNET_TESTING_TOPOLOGY_CLIQUE; /* Defaults to NONE, so set better default here */
 932     }
 933
 934   if ((GNUNET_YES ==
 935       GNUNET_CONFIGURATION_get_value_string(cfg, "testing", "connect_topology",
 936                                             &connect_topology_str)) && (GNUNET_NO == GNUNET_TESTING_topology_get(&connection_topology, connect_topology_str)))
 937     {
 938       GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
 939                   "Invalid connect topology `%s' given for section %s option %s\n", connect_topology_str, "TESTING", "CONNECT_TOPOLOGY");
 940     }
 941   GNUNET_free_non_null(connect_topology_str);
 942   if ((GNUNET_YES ==
 943       GNUNET_CONFIGURATION_get_value_string(cfg, "testing", "connect_topology_option",
 944                                             &connect_topology_option_str)) && (GNUNET_NO == GNUNET_TESTING_topology_option_get(&connect_topology_option, connect_topology_option_str)))
 945     {
 946       GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
 947                   "Invalid connect topology option `%s' given for section %s option %s\n", connect_topology_option_str, "TESTING", "CONNECT_TOPOLOGY_OPTION");
 948       connect_topology_option = GNUNET_TESTING_TOPOLOGY_OPTION_ALL; /* Defaults to NONE, set to ALL */
 949     }
 950   GNUNET_free_non_null(connect_topology_option_str);
 951   if (GNUNET_YES ==
 952         GNUNET_CONFIGURATION_get_value_string (cfg, "testing", "connect_topology_option_modifier",
 953                                                &connect_topology_option_modifier_string))
 954     {
 955       if (sscanf(connect_topology_option_modifier_string, "%lf", &connect_topology_option_modifier) != 1)
 956       {
 957         GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
 958         _("Invalid value `%s' for option `%s' in section `%s': expected float\n"),
 959         connect_topology_option_modifier_string,
 960         "connect_topology_option_modifier",
 961         "TESTING");
 962       }
 963       GNUNET_free (connect_topology_option_modifier_string);
 964     }
 965
 966   if (GNUNET_YES != GNUNET_CONFIGURATION_get_value_string (cfg, "testing", "blacklist_transports",
 967                                          &blacklist_transports))
 968     blacklist_transports = NULL;
 969
 970   if ((GNUNET_YES ==
 971       GNUNET_CONFIGURATION_get_value_string(cfg, "testing", "blacklist_topology",
 972                                             &blacklist_topology_str)) && (GNUNET_NO == GNUNET_TESTING_topology_get(&blacklist_topology, blacklist_topology_str)))
 973     {
 974       GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
 975                   "Invalid topology `%s' given for section %s option %s\n", topology_str, "TESTING", "BLACKLIST_TOPOLOGY");
 976     }
 977   GNUNET_free_non_null(topology_str);
 978   GNUNET_free_non_null(blacklist_topology_str);
 979
 980   if (GNUNET_OK ==
 981       GNUNET_CONFIGURATION_get_value_number (cfg, "testing", "settle_time",
 982                                              &temp_settle))
 983     settle_time = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_settle);
 984
 985   if (GNUNET_SYSERR ==
 986       GNUNET_CONFIGURATION_get_value_number (cfg, "testing", "num_peers",
 987                                              &num_peers))
 988     num_peers = DEFAULT_NUM_PEERS;
 989
 990   main_cfg = cfg;
 991
 992   peers_left = num_peers;
 993   modnum = num_peers / 4;
 994   dotnum = (num_peers / 50) + 1;
 995 #if VERBOSE
 996   fprintf (stdout, "Hostkey generation progress: \[");
 997 #endif
 998   /* Set up a task to end testing if peer start fails */
 999   die_task = GNUNET_SCHEDULER_add_delayed (sched,
1000                                            GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, SECONDS_PER_PEER_START * num_peers),
1001                                            &end_badly, "didn't generate all hostkeys within a reasonable amount of time!!!");
1002
1003   GNUNET_assert(num_peers > 0 && num_peers < (unsigned int)-1);
1004   pg = GNUNET_TESTING_daemons_start (sched, cfg,
1005                                      peers_left, GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, SECONDS_PER_PEER_START * num_peers), &hostkey_callback, NULL, &peers_started_callback, NULL,
1006                                      &topology_callback, NULL, NULL);
1007
1008 }
1009
1010 static int
1011 check ()
1012 {
1013   char *binary_name;
1014   char *config_file_name;
1015   GNUNET_asprintf(&binary_name, "test-testing-topology-%s", topology_string);
1016   GNUNET_asprintf(&config_file_name, "test_testing_data_topology_%s.conf", topology_string);
1017   int ret;
1018   char *const argv[] = {binary_name,
1019     "-c",
1020     config_file_name,
1021 #if VERBOSE
1022     "-L", "DEBUG",
1023 #endif
1024     NULL
1025   };
1026   struct GNUNET_GETOPT_CommandLineOption options[] = {
1027     GNUNET_GETOPT_OPTION_END
1028   };
1029   ret = GNUNET_PROGRAM_run ((sizeof (argv) / sizeof (char *)) - 1,
1030                       argv, binary_name, "nohelp",
1031                       options, &run, &ok);
1032   if (ret != GNUNET_OK)
1033     {
1034       GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "`test-testing-topology-%s': Failed with error code %d\n", topology_string, ret);
1035     }
1036   GNUNET_free(binary_name);
1037   GNUNET_free(config_file_name);
1038   return ok;
1039 }
1040
1041 int
1042 main (int argc, char *argv[])
1043 {
1044   int ret;
1045   char *binary_start_pos;
1046   char *our_binary_name;
1047
1048   binary_start_pos = rindex(argv[0], '/');
1049   GNUNET_assert(binary_start_pos != NULL);
1050   topology_string = strstr (binary_start_pos,
1051                             "_topology");
1052   GNUNET_assert (topology_string != NULL);
1053   topology_string++;
1054   topology_string = strstr (topology_string, "_");
1055   GNUNET_assert (topology_string != NULL);
1056   topology_string++;
1057
1058   GNUNET_asprintf(&our_binary_name, "test-testing-topology_%s", topology_string);
1059   GNUNET_asprintf(&dotOutFileName, "topology_%s.dot", topology_string);
1060
1061   GNUNET_log_setup (our_binary_name,
1062 #if VERBOSE
1063                     "DEBUG",
1064 #else
1065                     "WARNING",
1066 #endif
1067                     NULL);
1068   ret = check ();
1069
1070   /**
1071    * Need to remove base directory, subdirectories taken care
1072    * of by the testing framework.
1073    */
1074   if (GNUNET_DISK_directory_remove (test_directory) != GNUNET_OK)
1075     {
1076       GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Failed to remove testing directory %s\n", test_directory);
1077     }
1078   GNUNET_free(our_binary_name);
1079   return ret;
1080 }
1081
1082 /* end of test_testing_topology.c */