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 PROGRESS_BARS GNUNET_YES
  32
  33 #define DELAY_FOR_LOGGING GNUNET_NO
  34
  35 /**
  36  * How long until we fail the whole testcase?
  37  */
  38 #define TEST_TIMEOUT GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 240)
  39
  40 /**
  41  * How long until we give up on starting the peers?
  42  */
  43 #define TIMEOUT GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 500)
  44
  45 #define SECONDS_PER_PEER_START 120
  46
  47 #define DEFAULT_NUM_PEERS 4
  48
  49 #define MAX_OUTSTANDING_CONNECTIONS 100
  50
  51 static float fail_percentage = 0.05;
  52
  53 static int ok;
  54
  55 static unsigned long long num_peers;
  56
  57 struct GNUNET_TIME_Relative connect_timeout;
  58
  59 static unsigned long long connect_attempts;
  60
  61 static unsigned int topology_connections;
  62
  63 static unsigned int total_connections;
  64
  65 static unsigned int failed_connections;
  66
  67 static unsigned int total_server_connections;
  68
  69 static unsigned int total_messages_received;
  70
  71 static unsigned int expected_messages;
  72
  73 static unsigned int expected_connections;
  74
  75 static unsigned long long peers_left;
  76
  77 static struct GNUNET_TESTING_PeerGroup *pg;
  78
  79 const struct GNUNET_CONFIGURATION_Handle *main_cfg;
  80
  81 GNUNET_SCHEDULER_TaskIdentifier die_task;
  82
  83 static char *dotOutFileName;
  84
  85 static struct GNUNET_TIME_Relative settle_time;
  86
  87 static FILE *dotOutFile;
  88
  89 static char *topology_string;
  90
  91 static char *blacklist_transports;
  92
  93 static int transmit_ready_scheduled;
  94
  95 static int transmit_ready_failed;
  96
  97 static int transmit_ready_called;
  98
  99 static unsigned int modnum;
 100
 101 static unsigned int dotnum;
 102
 103 static enum GNUNET_TESTING_Topology topology;
 104
 105 static enum GNUNET_TESTING_Topology blacklist_topology = GNUNET_TESTING_TOPOLOGY_NONE;  /* Don't do any blacklisting */
 106
 107 static enum GNUNET_TESTING_Topology connection_topology = GNUNET_TESTING_TOPOLOGY_NONE; /* NONE actually means connect all allowed peers */
 108
 109 static enum GNUNET_TESTING_TopologyOption connect_topology_option =
 110   GNUNET_TESTING_TOPOLOGY_OPTION_ALL;
 111
 112 static double connect_topology_option_modifier = 0.0;
 113
 114 static char *test_directory;
 115
 116 #define MTYPE 12345
 117
 118 struct GNUNET_TestMessage
 119 {
 120   /**
 121    * Header of the message
 122    */
 123   struct GNUNET_MessageHeader header;
 124
 125   /**
 126    * Unique identifier for this message.
 127    */
 128   uint32_t uid;
 129 };
 130
 131 struct TestMessageContext
 132 {
 133   /* This is a linked list */
 134   struct TestMessageContext *next;
 135
 136   /* Handle to the sending peer core */
 137   struct GNUNET_CORE_Handle *peer1handle;
 138
 139   /* Handle to the receiving peer core */
 140   struct GNUNET_CORE_Handle *peer2handle;
 141
 142   /* Handle to the sending peer daemon */
 143   struct GNUNET_TESTING_Daemon *peer1;
 144
 145   /* Handle to the receiving peer daemon */
 146   struct GNUNET_TESTING_Daemon *peer2;
 147
 148   /* Identifier for this message, so we don't disconnect other peers! */
 149   uint32_t uid;
 150
 151   /* Has peer1 been notified already of a connection to peer2? */
 152   int peer1notified;
 153
 154   /* Has the core of peer2 been connected already? */
 155   int peer2connected;
 156
 157   /* Task for disconnecting cores, allow task to be cancelled on shutdown */
 158   GNUNET_SCHEDULER_TaskIdentifier disconnect_task;
 159
 160 };
 161
 162 static struct TestMessageContext *test_messages;
 163
 164 /**
 165  * Check whether peers successfully shut down.
 166  */
 167 void
 168 shutdown_callback (void *cls, const char *emsg)
 169 {
 170   if (emsg != NULL)
 171     {
 172 #if VERBOSE
 173       GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Shutdown of peers failed!\n");
 174 #endif
 175       if (ok == 0)
 176         ok = 666;
 177     }
 178   else
 179     {
 180 #if VERBOSE
 181       GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 182                   "All peers successfully shut down!\n");
 183 #endif
 184     }
 185 }
 186
 187 #if DELAY_FOR_LOGGING
 188 static void
 189 gather_log_data ()
 190 {
 191   char *peer_number;
 192   char *connect_number;
 193   struct GNUNET_OS_Process *mem_process;
 194   GNUNET_asprintf (&peer_number, "%llu", num_peers);
 195   GNUNET_asprintf (&connect_number, "%llu", expected_connections);
 196   mem_process = GNUNET_OS_start_process (NULL, NULL, "./memsize.pl",
 197                                          "memsize.pl", "totals.txt",
 198                                          peer_number, connect_number, NULL);
 199   GNUNET_OS_process_wait (mem_process);
 200   GNUNET_OS_process_close (mem_process);
 201   mem_process = NULL;
 202 }
 203
 204 #endif
 205
 206 static void
 207 finish_testing ()
 208 {
 209   GNUNET_assert (pg != NULL);
 210   struct TestMessageContext *pos;
 211   struct TestMessageContext *free_pos;
 212 #if VERBOSE
 213   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 214               "Called finish testing, stopping daemons.\n");
 215 #endif
 216
 217   pos = test_messages;
 218   while (pos != NULL)
 219     {
 220       if (pos->peer1handle != NULL)
 221         {
 222           GNUNET_CORE_disconnect (pos->peer1handle);
 223           pos->peer1handle = NULL;
 224         }
 225       if (pos->peer2handle != NULL)
 226         {
 227           GNUNET_CORE_disconnect (pos->peer2handle);
 228           pos->peer2handle = NULL;
 229         }
 230       free_pos = pos;
 231       pos = pos->next;
 232       if (free_pos->disconnect_task != GNUNET_SCHEDULER_NO_TASK)
 233         {
 234           GNUNET_SCHEDULER_cancel (free_pos->disconnect_task);
 235         }
 236       GNUNET_free (free_pos);
 237     }
 238 #if VERBOSE
 239   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 240               "Transmit_ready's scheduled %d, failed %d, transmit_ready's called %d\n",
 241               transmit_ready_scheduled, transmit_ready_failed,
 242               transmit_ready_called);
 243 #endif
 244
 245 #if VERBOSE
 246   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Calling daemons_stop\n");
 247 #endif
 248   GNUNET_TESTING_daemons_stop (pg, TIMEOUT, &shutdown_callback, NULL);
 249
 250   if (dotOutFile != NULL)
 251     {
 252       fprintf (dotOutFile, "}");
 253       fclose (dotOutFile);
 254     }
 255
 256   ok = 0;
 257 }
 258
 259
 260 static void
 261 disconnect_cores (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
 262 {
 263   struct TestMessageContext *pos = cls;
 264
 265   /* Disconnect from the respective cores */
 266 #if VERBOSE > 1
 267   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 268               "Disconnecting from peer 1 `%4s'\n",
 269               GNUNET_i2s (&pos->peer1->id));
 270 #endif
 271   if (pos->peer1handle != NULL)
 272     GNUNET_CORE_disconnect (pos->peer1handle);
 273 #if VERBOSE > 1
 274   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 275               "Disconnecting from peer 2 `%4s'\n",
 276               GNUNET_i2s (&pos->peer2->id));
 277 #endif
 278   if (pos->peer2handle != NULL)
 279     GNUNET_CORE_disconnect (pos->peer2handle);
 280   /* Set handles to NULL so test case can be ended properly */
 281   pos->peer1handle = NULL;
 282   pos->peer2handle = NULL;
 283   pos->disconnect_task = GNUNET_SCHEDULER_NO_TASK;
 284   /* Decrement total connections so new can be established */
 285   total_server_connections -= 2;
 286 }
 287
 288 #if DO_STATS
 289 static void
 290 stats_finished (void *cls, int result)
 291 {
 292   GNUNET_SCHEDULER_add_now (&finish_testing, NULL);
 293 }
 294
 295 /**
 296  * Callback function to process statistic values.
 297  *
 298  * @param cls closure
 299  * @param peer the peer the statistics belong to
 300  * @param subsystem name of subsystem that created the statistic
 301  * @param name the name of the datum
 302  * @param value the current value
 303  * @param is_persistent GNUNET_YES if the value is persistent, GNUNET_NO if not
 304  * @return GNUNET_OK to continue, GNUNET_SYSERR to abort iteration
 305  */
 306 static int
 307 stats_print (void *cls,
 308              const struct GNUNET_PeerIdentity *peer,
 309              const char *subsystem,
 310              const char *name, uint64_t value, int is_persistent)
 311 {
 312   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "%s:%s:%s -- %llu\n",
 313               GNUNET_i2s (peer), subsystem, name, value);
 314   return GNUNET_OK;
 315 }
 316 #endif
 317
 318 static void
 319 topology_cb (void *cls,
 320              const struct GNUNET_PeerIdentity *first,
 321              const struct GNUNET_PeerIdentity *second, const char *emsg)
 322 {
 323   FILE *outfile = cls;
 324   if (first != NULL)
 325     {
 326       if (outfile != NULL)
 327         {
 328           fprintf (outfile, "\t\"%s\" -- ", GNUNET_i2s (first));
 329           fprintf (outfile, "\"%s\";\n", GNUNET_i2s (second));
 330         }
 331       topology_connections++;
 332     }
 333   else
 334     {
 335       fprintf (stderr,
 336                "Finished iterating over topology, %d total connections!\n",
 337                topology_connections);
 338       if (outfile != NULL)
 339         {
 340           fprintf (outfile, "}\n");
 341           fclose (outfile);
 342 #if DO_STATS
 343           GNUNET_TESTING_get_statistics (pg, &stats_finished, &stats_print,
 344                                          NULL);
 345 #endif
 346           GNUNET_SCHEDULER_add_now (&finish_testing, NULL);
 347         }
 348     }
 349 }
 350
 351 static int
 352 process_mtype (void *cls,
 353                const struct GNUNET_PeerIdentity *peer,
 354                const struct GNUNET_MessageHeader *message,
 355                const struct GNUNET_TRANSPORT_ATS_Information *atsi)
 356 {
 357   char *dotOutFileNameFinished;
 358   FILE *dotOutFileFinished;
 359   struct TestMessageContext *pos = cls;
 360   struct GNUNET_TestMessage *msg = (struct GNUNET_TestMessage *) message;
 361   if (pos->uid != ntohl (msg->uid))
 362     return GNUNET_OK;
 363
 364 #if PROGRESS_BARS
 365   if ((total_messages_received) % modnum == 0)
 366     {
 367       if (total_messages_received == 0)
 368         fprintf (stdout, "0%%");
 369       else
 370         fprintf (stdout, "%d%%",
 371                  (int) (((float) total_messages_received /
 372                          expected_messages) * 100));
 373
 374     }
 375   else if (total_messages_received % dotnum == 0)
 376     {
 377       fprintf (stdout, ".");
 378     }
 379   fflush (stdout);
 380 #endif
 381
 382   total_messages_received++;
 383
 384 #if VERBOSE > 1
 385   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 386               "Received message from `%4s', type %d.\n", GNUNET_i2s (peer),
 387               ntohs (message->type));
 388   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 389               "Total messages received %d, expected %d.\n",
 390               total_messages_received, expected_messages);
 391 #endif
 392
 393   if (total_messages_received == expected_messages)
 394     {
 395 #if PROGRESS_BARS
 396       fprintf (stdout, "100%%]\n");
 397 #endif
 398       GNUNET_SCHEDULER_cancel (die_task);
 399       GNUNET_asprintf (&dotOutFileNameFinished, "%s.dot", "final_topology");
 400       dotOutFileFinished = fopen (dotOutFileNameFinished, "w");
 401       GNUNET_free (dotOutFileNameFinished);
 402       if (dotOutFileFinished != NULL)
 403         {
 404           fprintf (dotOutFileFinished, "strict graph G {\n");
 405         }
 406       topology_connections = 0;
 407       GNUNET_TESTING_get_topology (pg, &topology_cb, dotOutFileFinished);
 408       //GNUNET_SCHEDULER_add_now (&finish_testing, NULL);
 409     }
 410   else
 411     {
 412       pos->disconnect_task =
 413         GNUNET_SCHEDULER_add_now (&disconnect_cores, pos);
 414     }
 415
 416   return GNUNET_OK;
 417 }
 418
 419 static void
 420 end_badly (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
 421 {
 422   char *msg = cls;
 423   GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
 424               "End badly was called (%s)... stopping daemons.\n", msg);
 425   struct TestMessageContext *pos;
 426   struct TestMessageContext *free_pos;
 427
 428   pos = test_messages;
 429   while (pos != NULL)
 430     {
 431       if (pos->peer1handle != NULL)
 432         {
 433           GNUNET_CORE_disconnect (pos->peer1handle);
 434           pos->peer1handle = NULL;
 435         }
 436       if (pos->peer2handle != NULL)
 437         {
 438           GNUNET_CORE_disconnect (pos->peer2handle);
 439           pos->peer2handle = NULL;
 440         }
 441       free_pos = pos;
 442       pos = pos->next;
 443       GNUNET_free (free_pos);
 444     }
 445
 446 #if VERBOSE
 447   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 448               "Transmit_ready's scheduled %d, failed %d, transmit_ready's called %d\n",
 449               transmit_ready_scheduled, transmit_ready_failed,
 450               transmit_ready_called);
 451   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 452               "Total messages received %d, expected %d.\n",
 453               total_messages_received, expected_messages);
 454 #endif
 455
 456   if (pg != NULL)
 457     {
 458       GNUNET_TESTING_daemons_stop (pg, TIMEOUT, &shutdown_callback, NULL);
 459       ok = 7331;                /* Opposite of leet */
 460     }
 461   else
 462     ok = 401;                   /* Never got peers started */
 463
 464   if (dotOutFile != NULL)
 465     {
 466       fprintf (dotOutFile, "}");
 467       fclose (dotOutFile);
 468     }
 469 }
 470
 471 static size_t
 472 transmit_ready (void *cls, size_t size, void *buf)
 473 {
 474   struct GNUNET_TestMessage *m;
 475   struct TestMessageContext *pos = cls;
 476
 477   GNUNET_assert (buf != NULL);
 478   m = (struct GNUNET_TestMessage *) buf;
 479   m->header.type = htons (MTYPE);
 480   m->header.size = htons (sizeof (struct GNUNET_TestMessage));
 481   m->uid = htonl (pos->uid);
 482   transmit_ready_called++;
 483 #if VERBOSE > 1
 484   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 485               "transmit ready for peer %s\ntransmit_ready's scheduled %d, transmit_ready's called %d\n",
 486               GNUNET_i2s (&pos->peer1->id), transmit_ready_scheduled,
 487               transmit_ready_called);
 488 #endif
 489   return sizeof (struct GNUNET_TestMessage);
 490 }
 491
 492
 493 static struct GNUNET_CORE_MessageHandler no_handlers[] = {
 494   {NULL, 0, 0}
 495 };
 496
 497 static struct GNUNET_CORE_MessageHandler handlers[] = {
 498   {&process_mtype, MTYPE, sizeof (struct GNUNET_TestMessage)},
 499   {NULL, 0, 0}
 500 };
 501
 502 static void
 503 init_notify_peer2 (void *cls,
 504                    struct GNUNET_CORE_Handle *server,
 505                    const struct GNUNET_PeerIdentity *my_identity,
 506                    const struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded
 507                    *publicKey)
 508 {
 509   struct TestMessageContext *pos = cls;
 510
 511   total_server_connections++;
 512
 513   pos->peer2connected = GNUNET_YES;
 514   if (pos->peer1notified == GNUNET_YES) /* Peer 1 has been notified of connection to peer 2 */
 515     {
 516 #if VERBOSE > 1
 517       GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 518                   "Scheduling message send to peer `%s' from peer `%s' (init_notify_peer2)\n",
 519                   GNUNET_i2s (my_identity), GNUNET_h2s(&pos->peer1->id.hashPubKey));
 520 #endif
 521       if (NULL == GNUNET_CORE_notify_transmit_ready (pos->peer1handle,
 522                                                      0,
 523                                                      TIMEOUT,
 524                                                      &pos->peer2->id,
 525                                                      sizeof (struct
 526                                                              GNUNET_TestMessage),
 527                                                      &transmit_ready, pos))
 528         {
 529           GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 530                       "RECEIVED NULL when asking core (1) for transmission to peer `%4s'\n",
 531                       GNUNET_i2s (&pos->peer2->id));
 532           transmit_ready_failed++;
 533         }
 534       else
 535         {
 536           transmit_ready_scheduled++;
 537         }
 538     }
 539 }
 540
 541 /**
 542  * Method called whenever a given peer connects.
 543  *
 544  * @param cls closure
 545  * @param peer peer identity this notification is about
 546  * @param atsi performance data for the connection
 547  */
 548 static void connect_notify_peers (void *cls,
 549                                   const struct
 550                                   GNUNET_PeerIdentity *peer,
 551                                   const struct GNUNET_TRANSPORT_ATS_Information *atsi)
 552 {
 553   struct TestMessageContext *pos = cls;
 554
 555   if (0 == memcmp(peer, &pos->peer2->id, sizeof(struct GNUNET_PeerIdentity)))
 556     {
 557       pos->peer1notified = GNUNET_YES;
 558 #if VERBOSE > 1
 559       GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 560                 "Peer `%s' notified of connection to peer `%s'\n",
 561                 GNUNET_i2s (&pos->peer1->id), GNUNET_h2s(&peer->hashPubKey));
 562 #endif
 563     }
 564   else
 565     return;
 566
 567   if (pos->peer2connected == GNUNET_YES) /* Already connected and notified of connection, send message! */
 568     {
 569 #if VERBOSE > 1
 570       GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 571                 "Scheduling message send to peer `%s' from peer `%s' (init_notify_peer2)\n",
 572                 GNUNET_i2s (&pos->peer2->id), GNUNET_h2s(&pos->peer1->id.hashPubKey));
 573 #endif
 574       if (NULL == GNUNET_CORE_notify_transmit_ready (pos->peer1handle,
 575                                                      0,
 576                                                      TIMEOUT,
 577                                                      &pos->peer2->id,
 578                                                      sizeof (struct
 579                                                              GNUNET_TestMessage),
 580                                                      &transmit_ready, pos))
 581         {
 582           GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 583                       "RECEIVED NULL when asking core (1) for transmission to peer `%4s'\n",
 584                       GNUNET_i2s (&pos->peer2->id));
 585           transmit_ready_failed++;
 586         }
 587       else
 588         {
 589           transmit_ready_scheduled++;
 590         }
 591     }
 592 }
 593
 594 static void
 595 init_notify_peer1 (void *cls,
 596                    struct GNUNET_CORE_Handle *server,
 597                    const struct GNUNET_PeerIdentity *my_identity,
 598                    const struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded
 599                    *publicKey)
 600 {
 601   struct TestMessageContext *pos = cls;
 602   total_server_connections++;
 603
 604 #if VERBOSE > 1
 605   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 606               "Core connection to `%4s' established, setting up handles\n",
 607               GNUNET_i2s (my_identity));
 608 #endif
 609
 610   /*
 611    * Connect to the receiving peer
 612    */
 613   pos->peer2handle = GNUNET_CORE_connect (pos->peer2->cfg,
 614                                           1,
 615                                           pos,
 616                                           &init_notify_peer2,
 617                                           NULL,
 618                                           NULL,
 619                                           NULL, NULL,
 620                                           GNUNET_YES, NULL, GNUNET_YES,
 621                                           handlers);
 622
 623 }
 624
 625
 626 static void
 627 send_test_messages (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
 628 {
 629   struct TestMessageContext *pos = cls;
 630
 631   if ((pos == test_messages) && (settle_time.rel_value > 0))
 632     {
 633       topology_connections = 0;
 634       GNUNET_TESTING_get_topology (pg, &topology_cb, NULL);
 635     }
 636   if ((tc->reason == GNUNET_SCHEDULER_REASON_SHUTDOWN) || (cls == NULL))
 637     return;
 638
 639   if (die_task == GNUNET_SCHEDULER_NO_TASK)
 640     {
 641       die_task = GNUNET_SCHEDULER_add_delayed (TEST_TIMEOUT,
 642                                                &end_badly,
 643                                                "from send test messages (timeout)");
 644     }
 645
 646   if (total_server_connections >= MAX_OUTSTANDING_CONNECTIONS)
 647     {
 648       GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply
 649                                     (GNUNET_TIME_UNIT_SECONDS, 1),
 650                                     &send_test_messages, pos);
 651       return;                   /* Otherwise we'll double schedule messages here! */
 652     }
 653
 654   /*
 655    * Connect to the sending peer
 656    */
 657   pos->peer1handle = GNUNET_CORE_connect (pos->peer1->cfg,
 658                                           1,
 659                                           pos,
 660                                           &init_notify_peer1,
 661                                           &connect_notify_peers, NULL,
 662                                           NULL,
 663                                           NULL,
 664                                           GNUNET_NO, NULL, GNUNET_NO,
 665                                           no_handlers);
 666
 667   GNUNET_assert (pos->peer1handle != NULL);
 668
 669   if (total_server_connections < MAX_OUTSTANDING_CONNECTIONS)
 670     {
 671       GNUNET_SCHEDULER_add_now (&send_test_messages, pos->next);
 672     }
 673   else
 674     {
 675       GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply
 676                                     (GNUNET_TIME_UNIT_SECONDS, 1),
 677                                     &send_test_messages, pos->next);
 678     }
 679 }
 680
 681
 682 void
 683 topology_callback (void *cls,
 684                    const struct GNUNET_PeerIdentity *first,
 685                    const struct GNUNET_PeerIdentity *second,
 686                    uint32_t distance,
 687                    const struct GNUNET_CONFIGURATION_Handle *first_cfg,
 688                    const struct GNUNET_CONFIGURATION_Handle *second_cfg,
 689                    struct GNUNET_TESTING_Daemon *first_daemon,
 690                    struct GNUNET_TESTING_Daemon *second_daemon,
 691                    const char *emsg)
 692 {
 693   struct TestMessageContext *temp_context;
 694   if (emsg == NULL)
 695     {
 696 #if PROGRESS_BARS
 697       if ((total_connections) % modnum == 0)
 698         {
 699           if (total_connections == 0)
 700             fprintf (stdout, "0%%");
 701           else
 702             fprintf (stdout, "%d%%",
 703                      (int) (((float) total_connections /
 704                              expected_connections) * 100));
 705
 706         }
 707       else if (total_connections % dotnum == 0)
 708         {
 709           fprintf (stdout, ".");
 710         }
 711       fflush (stdout);
 712 #endif
 713       total_connections++;
 714 #if VERBOSE > 1
 715       GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "connected peer %s to peer %s\n",
 716                   first_daemon->shortname, second_daemon->shortname);
 717 #endif
 718       temp_context = GNUNET_malloc (sizeof (struct TestMessageContext));
 719       temp_context->peer1 = first_daemon;
 720       temp_context->peer2 = second_daemon;
 721       temp_context->next = test_messages;
 722       temp_context->uid = total_connections;
 723       temp_context->disconnect_task = GNUNET_SCHEDULER_NO_TASK;
 724       test_messages = temp_context;
 725
 726       expected_messages++;
 727       if (dotOutFile != NULL)
 728         fprintf (dotOutFile, "\tn%s -- n%s;\n", first_daemon->shortname,
 729                  second_daemon->shortname);
 730     }
 731 #if VERBOSE
 732   else
 733     {
 734       failed_connections++;
 735       GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 736                   "Failed to connect peer %s to peer %s with error :\n%s\n",
 737                   first_daemon->shortname, second_daemon->shortname, emsg);
 738     }
 739 #endif
 740
 741   if (total_connections == expected_connections)
 742     {
 743 #if PROGRESS_BARS
 744       fprintf (stdout, "100%%]\n");
 745 #endif
 746 #if VERBOSE
 747       GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 748                   "Created %d total connections, which is our target number!  Calling send messages.\n",
 749                   total_connections);
 750 #endif
 751       modnum = expected_messages / 4;
 752       dotnum = (expected_messages / 50) + 1;
 753       if (modnum == 0)
 754         modnum = 1;
 755       if (dotnum == 0)
 756         dotnum = 1;
 757       GNUNET_SCHEDULER_cancel (die_task);
 758       die_task = GNUNET_SCHEDULER_NO_TASK;
 759 #if DELAY_FOR_LOGGING
 760       fprintf (stdout, "Sending test messages in 10 seconds.\n");
 761       GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply
 762                                     (GNUNET_TIME_UNIT_SECONDS, 10),
 763                                     &send_test_messages, test_messages);
 764       gather_log_data ();
 765 #else
 766       if (settle_time.rel_value > 0)
 767         {
 768           GNUNET_TESTING_get_topology (pg, &topology_cb, NULL);
 769         }
 770       GNUNET_SCHEDULER_add_delayed (settle_time, &send_test_messages,
 771                                     test_messages);
 772 #endif
 773 #if PROGRESS_BARS
 774       fprintf (stdout, "Test message progress: [");
 775 #endif
 776
 777     }
 778   else if (total_connections + failed_connections == expected_connections)
 779     {
 780       if (failed_connections <
 781           (unsigned int) (fail_percentage * total_connections))
 782         {
 783           GNUNET_SCHEDULER_cancel (die_task);
 784           die_task = GNUNET_SCHEDULER_NO_TASK;
 785           GNUNET_SCHEDULER_add_now (&send_test_messages, test_messages);
 786         }
 787       else
 788         {
 789           GNUNET_SCHEDULER_cancel (die_task);
 790           die_task =
 791             GNUNET_SCHEDULER_add_now (&end_badly,
 792                                       "from topology_callback (too many failed connections)");
 793         }
 794     }
 795   else
 796     {
 797 #if VERBOSE > 1
 798       GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 799                   "Have %d total connections, %d failed connections, Want %d (at least %d)\n",
 800                   total_connections, failed_connections, expected_connections,
 801                   expected_connections -
 802                   (unsigned int) (fail_percentage * expected_connections));
 803 #endif
 804     }
 805 }
 806
 807 static void
 808 topology_creation_finished (void *cls, const char *emsg)
 809 {
 810 #if VERBOSE
 811   if (emsg == NULL)
 812     GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 813                 "All topology connections created successfully!\n");
 814 #endif
 815 }
 816
 817 static void
 818 connect_topology ()
 819 {
 820   expected_connections = -1;
 821   if ((pg != NULL) && (peers_left == 0))
 822     {
 823       expected_connections =
 824         GNUNET_TESTING_connect_topology (pg, connection_topology,
 825                                          connect_topology_option,
 826                                          connect_topology_option_modifier,
 827                                          connect_timeout,
 828                                          connect_attempts,
 829                                          &topology_creation_finished, NULL);
 830 #if PROGRESS_BARS
 831       GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
 832                   "Have %d expected connections\n", expected_connections);
 833 #endif
 834     }
 835
 836   GNUNET_SCHEDULER_cancel (die_task);
 837   if (expected_connections < 1)
 838     {
 839       die_task =
 840         GNUNET_SCHEDULER_add_now (&end_badly,
 841                                   "from connect topology (bad return)");
 842       return;
 843     }
 844
 845   die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply
 846                                            (GNUNET_TIME_UNIT_SECONDS,
 847                                             SECONDS_PER_PEER_START * num_peers),
 848                                            &end_badly,
 849                                            "from connect topology (timeout)");
 850   modnum = expected_connections / 4;
 851   dotnum = (expected_connections / 50) + 1;
 852   if (modnum == 0)
 853     modnum = 1;
 854   if (dotnum == 0)
 855     dotnum = 1;
 856 #if PROGRESS_BARS
 857   fprintf (stdout, "Peer connection progress: [");
 858 #endif
 859 }
 860
 861 static void
 862 create_topology ()
 863 {
 864   peers_left = num_peers;       /* Reset counter */
 865   if (GNUNET_TESTING_create_topology
 866       (pg, topology, blacklist_topology,
 867        blacklist_transports) != GNUNET_SYSERR)
 868     {
 869 #if PROGRESS_BARS
 870       GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 871                   "Topology set up, now starting peers!\n");
 872       fprintf (stdout, "Daemon start progress [");
 873 #endif
 874       GNUNET_TESTING_daemons_continue_startup (pg);
 875     }
 876   else
 877     {
 878       GNUNET_SCHEDULER_cancel (die_task);
 879       die_task =
 880         GNUNET_SCHEDULER_add_now (&end_badly,
 881                                   "from create topology (bad return)");
 882     }
 883   GNUNET_SCHEDULER_cancel (die_task);
 884   die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply
 885                                            (GNUNET_TIME_UNIT_SECONDS,
 886                                             SECONDS_PER_PEER_START * num_peers),
 887                                            &end_badly,
 888                                            "from continue startup (timeout)");
 889 }
 890
 891
 892 static void
 893 peers_started_callback (void *cls,
 894                         const struct GNUNET_PeerIdentity *id,
 895                         const struct GNUNET_CONFIGURATION_Handle *cfg,
 896                         struct GNUNET_TESTING_Daemon *d, const char *emsg)
 897 {
 898   if (emsg != NULL)
 899     {
 900       GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 901                   "Failed to start daemon with error: `%s'\n", emsg);
 902       return;
 903     }
 904   GNUNET_assert (id != NULL);
 905 #if VERBOSE > 1
 906   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Started daemon %llu out of %llu\n",
 907               (num_peers - peers_left) + 1, num_peers);
 908 #endif
 909 #if PROGRESS_BARS
 910   if ((num_peers - peers_left) % modnum == 0)
 911     {
 912       if (num_peers - peers_left == 0)
 913         fprintf (stdout, "0%%");
 914       else
 915         fprintf (stdout, "%d%%",
 916                  (int) (((float) (num_peers - peers_left) /
 917                          num_peers) * 100));
 918
 919     }
 920   else if ((num_peers - peers_left) % dotnum == 0)
 921     {
 922       fprintf (stdout, ".");
 923     }
 924   fflush (stdout);
 925 #endif
 926   peers_left--;
 927   if (peers_left == 0)
 928     {
 929 #if PROGRESS_BARS
 930       fprintf (stdout, "100%%]\n");
 931 #endif
 932 #if VERBOSE
 933       GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 934                   "All %d daemons started, now connecting peers!\n",
 935                   num_peers);
 936 #endif
 937       GNUNET_SCHEDULER_cancel (die_task);
 938       /* Set up task in case topology creation doesn't finish
 939        * within a reasonable amount of time */
 940       die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply
 941                                                (GNUNET_TIME_UNIT_MINUTES, 8),
 942                                                &end_badly,
 943                                                "from peers_started_callback");
 944 #if DELAY_FOR_LOGGING
 945       fprintf (stdout, "Connecting topology in 10 seconds\n");
 946       gather_log_data ();
 947       GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply
 948                                     (GNUNET_TIME_UNIT_SECONDS, 10),
 949                                     &connect_topology, NULL);
 950 #else
 951       connect_topology ();
 952 #endif
 953       ok = 0;
 954     }
 955 }
 956
 957 /**
 958  * Callback indicating that the hostkey was created for a peer.
 959  *
 960  * @param cls NULL
 961  * @param id the peer identity
 962  * @param d the daemon handle (pretty useless at this point, remove?)
 963  * @param emsg non-null on failure
 964  */
 965 void
 966 hostkey_callback (void *cls,
 967                   const struct GNUNET_PeerIdentity *id,
 968                   struct GNUNET_TESTING_Daemon *d, const char *emsg)
 969 {
 970   if (emsg != NULL)
 971     {
 972       GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
 973                   "Hostkey callback received error: %s\n", emsg);
 974     }
 975
 976 #if VERBOSE > 1
 977   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 978               "Hostkey (%d/%d) created for peer `%s'\n",
 979               num_peers - peers_left, num_peers, GNUNET_i2s (id));
 980 #endif
 981
 982 #if PROGRESS_BARS
 983   if ((num_peers - peers_left) % modnum == 0)
 984     {
 985       if (num_peers - peers_left == 0)
 986         fprintf (stdout, "0%%");
 987       else
 988         fprintf (stdout, "%d%%",
 989                  (int) (((float) (num_peers - peers_left) /
 990                          num_peers) * 100));
 991
 992     }
 993   else if ((num_peers - peers_left) % dotnum == 0)
 994     {
 995       fprintf (stdout, ".");
 996     }
 997   fflush (stdout);
 998 #endif
 999   peers_left--;
1000   if (peers_left == 0)
1001     {
1002 #if PROGRESS_BARS
1003       fprintf (stdout, "100%%]\n");
1004       GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1005                   "All %d hostkeys created, now creating topology!\n",
1006                   num_peers);
1007 #endif
1008       GNUNET_SCHEDULER_cancel (die_task);
1009       /* Set up task in case topology creation doesn't finish
1010        * within a reasonable amount of time */
1011       die_task = GNUNET_SCHEDULER_add_delayed (TIMEOUT,
1012                                                &end_badly,
1013                                                "from create_topology");
1014       GNUNET_SCHEDULER_add_now (&create_topology, NULL);
1015       ok = 0;
1016     }
1017 }
1018
1019 static void
1020 run (void *cls,
1021      char *const *args,
1022      const char *cfgfile, const struct GNUNET_CONFIGURATION_Handle *cfg)
1023 {
1024   char *topology_str;
1025   char *connect_topology_str;
1026   char *blacklist_topology_str;
1027   char *connect_topology_option_str;
1028   char *connect_topology_option_modifier_string;
1029   unsigned long long temp_settle;
1030   unsigned long long max_outstanding_connections;
1031   ok = 1;
1032
1033   dotOutFile = fopen (dotOutFileName, "w");
1034   if (dotOutFile != NULL)
1035     {
1036       fprintf (dotOutFile, "strict graph G {\n");
1037     }
1038
1039 #if VERBOSE
1040   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1041               "Starting daemons based on config file %s\n", cfgfile);
1042 #endif
1043
1044   if (GNUNET_YES !=
1045       GNUNET_CONFIGURATION_get_value_string (cfg, "paths", "servicehome",
1046                                              &test_directory))
1047     {
1048       ok = 404;
1049       return;
1050     }
1051
1052   if ((GNUNET_YES ==
1053        GNUNET_CONFIGURATION_get_value_string (cfg, "testing", "topology",
1054                                               &topology_str))
1055       && (GNUNET_NO == GNUNET_TESTING_topology_get (&topology, topology_str)))
1056     {
1057       GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
1058                   "Invalid topology `%s' given for section %s option %s\n",
1059                   topology_str, "TESTING", "TOPOLOGY");
1060       topology = GNUNET_TESTING_TOPOLOGY_CLIQUE;        /* Defaults to NONE, so set better default here */
1061     }
1062
1063   if ((GNUNET_YES ==
1064        GNUNET_CONFIGURATION_get_value_string (cfg, "testing",
1065                                               "connect_topology",
1066                                               &connect_topology_str))
1067       && (GNUNET_NO ==
1068           GNUNET_TESTING_topology_get (&connection_topology,
1069                                        connect_topology_str)))
1070     {
1071       GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
1072                   "Invalid connect topology `%s' given for section %s option %s\n",
1073                   connect_topology_str, "TESTING", "CONNECT_TOPOLOGY");
1074     }
1075   GNUNET_free_non_null (connect_topology_str);
1076   if ((GNUNET_YES ==
1077        GNUNET_CONFIGURATION_get_value_string (cfg, "testing",
1078                                               "connect_topology_option",
1079                                               &connect_topology_option_str))
1080       && (GNUNET_NO ==
1081           GNUNET_TESTING_topology_option_get (&connect_topology_option,
1082                                               connect_topology_option_str)))
1083     {
1084       GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
1085                   "Invalid connect topology option `%s' given for section %s option %s\n",
1086                   connect_topology_option_str, "TESTING",
1087                   "CONNECT_TOPOLOGY_OPTION");
1088       connect_topology_option = GNUNET_TESTING_TOPOLOGY_OPTION_ALL;     /* Defaults to NONE, set to ALL */
1089     }
1090   GNUNET_free_non_null (connect_topology_option_str);
1091   if (GNUNET_YES ==
1092       GNUNET_CONFIGURATION_get_value_string (cfg, "testing",
1093                                              "connect_topology_option_modifier",
1094                                              &connect_topology_option_modifier_string))
1095     {
1096       if (sscanf
1097           (connect_topology_option_modifier_string, "%lf",
1098            &connect_topology_option_modifier) != 1)
1099         {
1100           GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
1101                       _
1102                       ("Invalid value `%s' for option `%s' in section `%s': expected float\n"),
1103                       connect_topology_option_modifier_string,
1104                       "connect_topology_option_modifier", "TESTING");
1105         }
1106       GNUNET_free (connect_topology_option_modifier_string);
1107     }
1108
1109   if (GNUNET_YES !=
1110       GNUNET_CONFIGURATION_get_value_string (cfg, "testing",
1111                                              "blacklist_transports",
1112                                              &blacklist_transports))
1113     blacklist_transports = NULL;
1114
1115   if ((GNUNET_YES ==
1116        GNUNET_CONFIGURATION_get_value_string (cfg, "testing",
1117                                               "blacklist_topology",
1118                                               &blacklist_topology_str))
1119       && (GNUNET_NO ==
1120           GNUNET_TESTING_topology_get (&blacklist_topology,
1121                                        blacklist_topology_str)))
1122     {
1123       GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
1124                   "Invalid topology `%s' given for section %s option %s\n",
1125                   topology_str, "TESTING", "BLACKLIST_TOPOLOGY");
1126     }
1127   GNUNET_free_non_null (topology_str);
1128   GNUNET_free_non_null (blacklist_topology_str);
1129
1130   if (GNUNET_OK ==
1131       GNUNET_CONFIGURATION_get_value_number (cfg, "testing", "settle_time",
1132                                              &temp_settle))
1133     settle_time =
1134       GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, temp_settle);
1135
1136   if (GNUNET_OK ==
1137       GNUNET_CONFIGURATION_get_value_number (cfg, "testing", "connect_timeout",
1138                                              &temp_settle))
1139     connect_timeout =
1140       GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, temp_settle);
1141   else
1142     {
1143       GNUNET_log(GNUNET_ERROR_TYPE_ERROR, "Must provide option %s:%s!\n", "testing", "connect_timeout");
1144       return;
1145     }
1146
1147
1148   if (GNUNET_OK !=
1149         GNUNET_CONFIGURATION_get_value_number (cfg, "testing", "connect_attempts",
1150                                                &connect_attempts))
1151     {
1152       GNUNET_log(GNUNET_ERROR_TYPE_ERROR, "Must provide option %s:%s!\n", "testing", "connect_attempts");
1153       return;
1154     }
1155
1156   if (GNUNET_OK !=
1157         GNUNET_CONFIGURATION_get_value_number (cfg, "testing", "max_outstanding_connections",
1158                                                &max_outstanding_connections))
1159     {
1160       GNUNET_log(GNUNET_ERROR_TYPE_ERROR, "Must provide option %s:%s!\n", "testing", "max_outstanding_connections");
1161       return;
1162     }
1163
1164   if (GNUNET_SYSERR ==
1165       GNUNET_CONFIGURATION_get_value_number (cfg, "testing", "num_peers",
1166                                              &num_peers))
1167     num_peers = DEFAULT_NUM_PEERS;
1168
1169   main_cfg = cfg;
1170
1171   peers_left = num_peers;
1172   modnum = num_peers / 4;
1173   dotnum = (num_peers / 50) + 1;
1174   if (modnum == 0)
1175     modnum = 1;
1176   if (dotnum == 0)
1177     dotnum = 1;
1178 #if PROGRESS_BARS
1179   fprintf (stdout, "Hostkey generation progress: [");
1180 #endif
1181   /* Set up a task to end testing if peer start fails */
1182   die_task =
1183     GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply
1184                                   (GNUNET_TIME_UNIT_SECONDS,
1185                                    SECONDS_PER_PEER_START * num_peers),
1186                                   &end_badly,
1187                                   "didn't generate all hostkeys within a reasonable amount of time!!!");
1188
1189   GNUNET_assert (num_peers > 0 && num_peers < (unsigned int) -1);
1190   pg = GNUNET_TESTING_daemons_start (cfg,
1191                                      peers_left,
1192                                      max_outstanding_connections,
1193                                      peers_left,
1194                                      GNUNET_TIME_relative_multiply
1195                                      (GNUNET_TIME_UNIT_SECONDS,
1196                                       SECONDS_PER_PEER_START * num_peers),
1197                                      &hostkey_callback, NULL,
1198                                      &peers_started_callback, NULL,
1199                                      &topology_callback, NULL, NULL);
1200
1201 }
1202
1203 static int
1204 check ()
1205 {
1206   char *binary_name;
1207   char *config_file_name;
1208   GNUNET_asprintf (&binary_name, "test-testing-topology-%s", topology_string);
1209   GNUNET_asprintf (&config_file_name, "test_testing_data_topology_%s.conf",
1210                    topology_string);
1211   int ret;
1212   char *const argv[] = { binary_name,
1213     "-c",
1214     config_file_name,
1215 #if VERBOSE
1216     "-L", "DEBUG",
1217 #endif
1218     NULL
1219   };
1220   struct GNUNET_GETOPT_CommandLineOption options[] = {
1221     GNUNET_GETOPT_OPTION_END
1222   };
1223   ret = GNUNET_PROGRAM_run ((sizeof (argv) / sizeof (char *)) - 1,
1224                             argv, binary_name, "nohelp", options, &run, &ok);
1225   if (ret != GNUNET_OK)
1226     {
1227       GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
1228                   "`test-testing-topology-%s': Failed with error code %d\n",
1229                   topology_string, ret);
1230     }
1231   GNUNET_free (binary_name);
1232   GNUNET_free (config_file_name);
1233   return ok;
1234 }
1235
1236 int
1237 main (int argc, char *argv[])
1238 {
1239   int ret;
1240   char *binary_start_pos;
1241   char *our_binary_name;
1242
1243   binary_start_pos = strchr (argv[0], '/');
1244   GNUNET_assert (binary_start_pos != NULL);
1245   topology_string = strstr (binary_start_pos, "_topology");
1246   GNUNET_assert (topology_string != NULL);
1247   topology_string++;
1248   topology_string = strstr (topology_string, "_");
1249   GNUNET_assert (topology_string != NULL);
1250   topology_string++;
1251
1252   GNUNET_asprintf (&our_binary_name, "test-testing-topology_%s",
1253                    topology_string);
1254   GNUNET_asprintf (&dotOutFileName, "topology_%s.dot", topology_string);
1255
1256   GNUNET_log_setup (our_binary_name,
1257 #if VERBOSE
1258                     "DEBUG",
1259 #else
1260                     "WARNING",
1261 #endif
1262                     NULL);
1263   ret = check ();
1264
1265   /**
1266    * Need to remove base directory, subdirectories taken care
1267    * of by the testing framework.
1268    */
1269   if (GNUNET_DISK_directory_remove (test_directory) != GNUNET_OK)
1270     {
1271       GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
1272                   "Failed to remove testing directory %s\n", test_directory);
1273     }
1274   GNUNET_free (our_binary_name);
1275   return ret;
1276 }
1277
1278 /* end of test_testing_topology.c */