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