src/dht/gnunet-dht-driver.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 dht/gnunet-dht-driver.c
  22  * @brief Driver for setting up a group of gnunet peers and
  23  *        then issuing GETS and PUTS on the DHT.  Coarse results
  24  *        are reported, fine grained results (if requested) are
  25  *        logged to a (mysql) database, or to file.
  26  */
  27 #include "platform.h"
  28 #include "gnunet_testing_lib.h"
  29 #include "gnunet_core_service.h"
  30 #include "gnunet_dht_service.h"
  31 #include "dhtlog.h"
  32
  33 /* DEFINES */
  34 #define VERBOSE GNUNET_NO
  35
  36 /* Timeout for entire driver to run */
  37 #define DEFAULT_TIMEOUT GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MINUTES, 5)
  38
  39 /* Timeout for waiting for (individual) replies to get requests */
  40 #define DEFAULT_GET_TIMEOUT GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 90)
  41
  42 /* Timeout for waiting for gets to be sent to the service */
  43 #define DEFAULT_GET_DELAY GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 10)
  44
  45 /* Timeout for waiting for puts to be sent to the service */
  46 #define DEFAULT_PUT_DELAY GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 10)
  47
  48 #define DEFAULT_SECONDS_PER_PEER_START GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 45)
  49
  50 #define DEFAULT_TEST_DATA_SIZE 8
  51
  52 #define DEFAULT_MAX_OUTSTANDING_PUTS 10
  53
  54 #define DEFAULT_MAX_OUTSTANDING_GETS 10
  55
  56 #define DEFAULT_CONNECT_TIMEOUT 60
  57
  58 #define DEFAULT_TOPOLOGY_TIMEOUT GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MINUTES, 8)
  59
  60 /* Structs */
  61
  62 struct TestPutContext
  63 {
  64   /* This is a linked list */
  65   struct TestPutContext *next;
  66
  67   /**
  68    * Handle to the first peers DHT service (via the API)
  69    */
  70   struct GNUNET_DHT_Handle *dht_handle;
  71
  72   /**
  73    *  Handle to the PUT peer daemon
  74    */
  75   struct GNUNET_TESTING_Daemon *daemon;
  76
  77   /**
  78    *  Identifier for this PUT
  79    */
  80   uint32_t uid;
  81
  82   /**
  83    * Task for disconnecting DHT handles
  84    */
  85   GNUNET_SCHEDULER_TaskIdentifier disconnect_task;
  86 };
  87
  88 struct TestGetContext
  89 {
  90   /* This is a linked list */
  91   struct TestGetContext *next;
  92
  93   /**
  94    * Handle to the first peers DHT service (via the API)
  95    */
  96   struct GNUNET_DHT_Handle *dht_handle;
  97
  98   /**
  99    * Handle for the DHT get request
 100    */
 101   struct GNUNET_DHT_GetHandle *get_handle;
 102
 103   /**
 104    *  Handle to the GET peer daemon
 105    */
 106   struct GNUNET_TESTING_Daemon *daemon;
 107
 108   /**
 109    *  Identifier for this GET
 110    */
 111   uint32_t uid;
 112
 113   /**
 114    * Task for disconnecting DHT handles (and stopping GET)
 115    */
 116   GNUNET_SCHEDULER_TaskIdentifier disconnect_task;
 117
 118   /**
 119    * Whether or not this request has been fulfilled already.
 120    */
 121   int succeeded;
 122 };
 123
 124 /**
 125  * Simple struct to keep track of progress, and print a
 126  * nice little percentage meter for long running tasks.
 127  */
 128 struct ProgressMeter
 129 {
 130   unsigned int total;
 131
 132   unsigned int modnum;
 133
 134   unsigned int dotnum;
 135
 136   unsigned int completed;
 137
 138   int print;
 139
 140   char *startup_string;
 141 };
 142
 143 /* Globals */
 144
 145 /**
 146  * Timeout to let all get requests happen.
 147  */
 148 static struct GNUNET_TIME_Relative all_get_timeout;
 149
 150 /**
 151  * Per get timeout
 152  */
 153 static struct GNUNET_TIME_Relative get_timeout;
 154
 155 static struct GNUNET_TIME_Relative get_delay;
 156
 157 static struct GNUNET_TIME_Relative put_delay;
 158
 159 static struct GNUNET_TIME_Relative seconds_per_peer_start;
 160
 161 static unsigned long long test_data_size = DEFAULT_TEST_DATA_SIZE;
 162
 163 static unsigned long long max_outstanding_puts = DEFAULT_MAX_OUTSTANDING_PUTS;
 164
 165 static unsigned long long max_outstanding_gets = DEFAULT_MAX_OUTSTANDING_GETS;
 166
 167 static unsigned long long malicious_getters;
 168
 169 static unsigned long long malicious_putters;
 170
 171 static unsigned long long malicious_droppers;
 172
 173 static unsigned long long settle_time;
 174
 175 static struct GNUNET_DHTLOG_Handle *dhtlog_handle;
 176
 177 static unsigned long long trialuid;
 178
 179 /**
 180  * List of GETS to perform
 181  */
 182 struct TestGetContext *all_gets;
 183
 184 /**
 185  * List of PUTS to perform
 186  */
 187 struct TestPutContext *all_puts;
 188
 189 /**
 190  * Directory to store temporary data in, defined in config file
 191  */
 192 static char *test_directory;
 193
 194 /**
 195  * Variable used to store the number of connections we should wait for.
 196  */
 197 static unsigned int expected_connections;
 198
 199 /**
 200  * Variable used to keep track of how many peers aren't yet started.
 201  */
 202 static unsigned long long peers_left;
 203
 204 /**
 205  * Handle to the set of all peers run for this test.
 206  */
 207 static struct GNUNET_TESTING_PeerGroup *pg;
 208
 209 /**
 210  * Global scheduler, used for all GNUNET_SCHEDULER_* functions.
 211  */
 212 static struct GNUNET_SCHEDULER_Handle *sched;
 213
 214 /**
 215  * Total number of peers to run, set based on config file.
 216  */
 217 static unsigned long long num_peers;
 218
 219 /**
 220  * Total number of items to insert.
 221  */
 222 static unsigned long long num_puts;
 223
 224 /**
 225  * Total number of items to attempt to get.
 226  */
 227 static unsigned long long num_gets;
 228
 229 /**
 230  * How many puts do we currently have in flight?
 231  */
 232 static unsigned long long outstanding_puts;
 233
 234 /**
 235  * How many puts are done?
 236  */
 237 static unsigned long long puts_completed;
 238
 239 /**
 240  * How many puts do we currently have in flight?
 241  */
 242 static unsigned long long outstanding_gets;
 243
 244 /**
 245  * How many gets are done?
 246  */
 247 static unsigned long long gets_completed;
 248
 249 /**
 250  * How many gets failed?
 251  */
 252 static unsigned long long gets_failed;
 253
 254 /**
 255  * Global used to count how many connections we have currently
 256  * been notified about (how many times has topology_callback been called
 257  * with success?)
 258  */
 259 static unsigned int total_connections;
 260
 261 /**
 262  * Global used to count how many failed connections we have
 263  * been notified about (how many times has topology_callback
 264  * been called with failure?)
 265  */
 266 static unsigned int failed_connections;
 267
 268 /* Task handle to use to schedule shutdown if something goes wrong */
 269 GNUNET_SCHEDULER_TaskIdentifier die_task;
 270
 271 static char *blacklist_transports;
 272
 273 static enum GNUNET_TESTING_Topology topology;
 274
 275 static enum GNUNET_TESTING_Topology blacklist_topology = GNUNET_TESTING_TOPOLOGY_NONE; /* Don't do any blacklisting */
 276
 277 static enum GNUNET_TESTING_Topology connect_topology = GNUNET_TESTING_TOPOLOGY_NONE; /* NONE actually means connect all allowed peers */
 278
 279 static enum GNUNET_TESTING_TopologyOption connect_topology_option = GNUNET_TESTING_TOPOLOGY_OPTION_ALL;
 280
 281 static double connect_topology_option_modifier = 0.0;
 282
 283 static struct ProgressMeter *hostkey_meter;
 284
 285 static struct ProgressMeter *peer_start_meter;
 286
 287 static struct ProgressMeter *peer_connect_meter;
 288
 289 static struct ProgressMeter *put_meter;
 290
 291 static struct ProgressMeter *get_meter;
 292
 293 /* Global return value (0 for success, anything else for failure) */
 294 static int ok;
 295
 296 /**
 297  * Create a meter to keep track of the progress of some task.
 298  *
 299  * @param total the total number of items to complete
 300  * @param start_string a string to prefix the meter with (if printing)
 301  * @param print GNUNET_YES to print the meter, GNUNET_NO to count
 302  *              internally only
 303  *
 304  * @return the progress meter
 305  */
 306 static struct ProgressMeter *
 307 create_meter(unsigned int total, char * start_string, int print)
 308 {
 309   struct ProgressMeter *ret;
 310   ret = GNUNET_malloc(sizeof(struct ProgressMeter));
 311   ret->print = print;
 312   ret->total = total;
 313   ret->modnum = total / 4;
 314   ret->dotnum = (total / 50) + 1;
 315   if (start_string != NULL)
 316     ret->startup_string = GNUNET_strdup(start_string);
 317   else
 318     ret->startup_string = GNUNET_strdup("");
 319
 320   return ret;
 321 }
 322
 323 /**
 324  * Update progress meter (increment by one).
 325  *
 326  * @param meter the meter to update and print info for
 327  *
 328  * @return GNUNET_YES if called the total requested,
 329  *         GNUNET_NO if more items expected
 330  */
 331 static int
 332 update_meter(struct ProgressMeter *meter)
 333 {
 334   if (meter->print == GNUNET_YES)
 335     {
 336       if (meter->completed % meter->modnum == 0)
 337         {
 338           if (meter->completed == 0)
 339             {
 340               fprintf(stdout, "%sProgress: [0%%", meter->startup_string);
 341             }
 342           else
 343             fprintf(stdout, "%d%%", (int)(((float)meter->completed / meter->total) * 100));
 344         }
 345       else if (meter->completed % meter->dotnum == 0)
 346         fprintf(stdout, ".");
 347
 348       if (meter->completed + 1 == meter->total)
 349         fprintf(stdout, "%d%%]\n", 100);
 350       fflush(stdout);
 351     }
 352   meter->completed++;
 353
 354   if (meter->completed == meter->total)
 355     return GNUNET_YES;
 356   return GNUNET_NO;
 357 }
 358
 359 /**
 360  * Release resources for meter
 361  *
 362  * @param meter the meter to free
 363  */
 364 static void
 365 free_meter(struct ProgressMeter *meter)
 366 {
 367   GNUNET_free_non_null(meter->startup_string);
 368   GNUNET_free_non_null(meter);
 369 }
 370
 371 /**
 372  * Check whether peers successfully shut down.
 373  */
 374 void shutdown_callback (void *cls,
 375                         const char *emsg)
 376 {
 377   if (emsg != NULL)
 378     {
 379       if (ok == 0)
 380         ok = 2;
 381     }
 382 }
 383
 384 /**
 385  * Task to release DHT handles for PUT
 386  */
 387 static void
 388 put_disconnect_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
 389 {
 390   struct TestPutContext *test_put = cls;
 391   test_put->disconnect_task = GNUNET_SCHEDULER_NO_TASK;
 392   GNUNET_DHT_disconnect(test_put->dht_handle);
 393   test_put->dht_handle = NULL;
 394 }
 395
 396 /**
 397  * Function scheduled to be run on the successful completion of this
 398  * testcase.
 399  */
 400 static void
 401 finish_testing (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
 402 {
 403   GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Ending test normally!\n", (char *)cls);
 404   GNUNET_assert (pg != NULL);
 405   struct TestPutContext *test_put = all_puts;
 406   struct TestGetContext *test_get = all_gets;
 407
 408   while (test_put != NULL)
 409     {
 410       if (test_put->disconnect_task != GNUNET_SCHEDULER_NO_TASK)
 411         GNUNET_SCHEDULER_cancel(sched, test_put->disconnect_task);
 412       if (test_put->dht_handle != NULL)
 413         GNUNET_DHT_disconnect(test_put->dht_handle);
 414       test_put = test_put->next;
 415     }
 416
 417   while (test_get != NULL)
 418     {
 419       if (test_get->disconnect_task != GNUNET_SCHEDULER_NO_TASK)
 420         GNUNET_SCHEDULER_cancel(sched, test_get->disconnect_task);
 421       if (test_get->get_handle != NULL)
 422         GNUNET_DHT_get_stop(test_get->get_handle, NULL, NULL);
 423       if (test_get->dht_handle != NULL)
 424         GNUNET_DHT_disconnect(test_get->dht_handle);
 425       test_get = test_get->next;
 426     }
 427
 428   GNUNET_TESTING_daemons_stop (pg, DEFAULT_TIMEOUT, &shutdown_callback, NULL);
 429
 430   /* FIXME: optionally get stats for dropped messages, etc. */
 431   if (dhtlog_handle != NULL)
 432     {
 433       fprintf(stderr, "Update trial endtime\n");
 434       dhtlog_handle->update_trial (trialuid, 0, 0, 0);
 435     }
 436
 437   if (hostkey_meter != NULL)
 438     free_meter(hostkey_meter);
 439   if (peer_start_meter != NULL)
 440     free_meter(peer_start_meter);
 441   if (peer_connect_meter != NULL)
 442     free_meter(peer_connect_meter);
 443   if (put_meter != NULL)
 444     free_meter(put_meter);
 445   if (get_meter != NULL)
 446     free_meter(get_meter);
 447
 448   ok = 0;
 449 }
 450
 451
 452 /**
 453  * Check if the get_handle is being used, if so stop the request.  Either
 454  * way, schedule the end_badly_cont function which actually shuts down the
 455  * test.
 456  */
 457 static void
 458 end_badly (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
 459 {
 460   GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Failing test with error: `%s'!\n", (char *)cls);
 461
 462   struct TestPutContext *test_put = all_puts;
 463   struct TestGetContext *test_get = all_gets;
 464
 465   while (test_put != NULL)
 466     {
 467       if (test_put->disconnect_task != GNUNET_SCHEDULER_NO_TASK)
 468         GNUNET_SCHEDULER_cancel(sched, test_put->disconnect_task);
 469       if (test_put->dht_handle != NULL)
 470         GNUNET_DHT_disconnect(test_put->dht_handle);
 471       test_put = test_put->next;
 472     }
 473
 474   while (test_get != NULL)
 475     {
 476       if (test_get->disconnect_task != GNUNET_SCHEDULER_NO_TASK)
 477         GNUNET_SCHEDULER_cancel(sched, test_get->disconnect_task);
 478       if (test_get->get_handle != NULL)
 479         GNUNET_DHT_get_stop(test_get->get_handle, NULL, NULL);
 480       if (test_get->dht_handle != NULL)
 481         GNUNET_DHT_disconnect(test_get->dht_handle);
 482       test_get = test_get->next;
 483     }
 484
 485   GNUNET_TESTING_daemons_stop (pg, DEFAULT_TIMEOUT, &shutdown_callback, NULL);
 486
 487   /* FIXME: optionally get stats for dropped messages, etc. */
 488   if (dhtlog_handle != NULL)
 489     {
 490       fprintf(stderr, "Update trial endtime\n");
 491       dhtlog_handle->update_trial (trialuid, 0, 0, 0);
 492     }
 493
 494   if (hostkey_meter != NULL)
 495     free_meter(hostkey_meter);
 496   if (peer_start_meter != NULL)
 497     free_meter(peer_start_meter);
 498   if (peer_connect_meter != NULL)
 499     free_meter(peer_connect_meter);
 500   if (put_meter != NULL)
 501     free_meter(put_meter);
 502   if (get_meter != NULL)
 503     free_meter(get_meter);
 504
 505   ok = 1;
 506 }
 507
 508 /**
 509  * Task to release DHT handle associated with GET request.
 510  */
 511 static void
 512 get_stop_finished (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
 513 {
 514   struct TestGetContext *test_get = cls;
 515   outstanding_gets--; /* GET is really finished */
 516   GNUNET_DHT_disconnect(test_get->dht_handle);
 517   test_get->dht_handle = NULL;
 518
 519 #if VERBOSE > 1
 520   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "%d gets succeeded, %d gets failed!\n", gets_completed, gets_failed);
 521 #endif
 522   update_meter(get_meter);
 523   if ((gets_completed == num_gets) && (outstanding_gets == 0))/* All gets successful */
 524     {
 525       GNUNET_SCHEDULER_cancel(sched, die_task);
 526       GNUNET_SCHEDULER_add_now(sched, &finish_testing, NULL);
 527     }
 528   else if ((gets_completed + gets_failed == num_gets) && (outstanding_gets == 0)) /* Had some failures */
 529     {
 530       GNUNET_SCHEDULER_cancel(sched, die_task);
 531       GNUNET_SCHEDULER_add_now(sched, &finish_testing, NULL);
 532     }
 533 }
 534
 535 /**
 536  * Task to release get handle.
 537  */
 538 static void
 539 get_stop_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
 540 {
 541   struct TestGetContext *test_get = cls;
 542
 543   if (tc->reason == GNUNET_SCHEDULER_REASON_TIMEOUT)
 544     gets_failed++;
 545   GNUNET_assert(test_get->get_handle != NULL);
 546   GNUNET_DHT_get_stop(test_get->get_handle, &get_stop_finished, test_get);
 547   test_get->get_handle = NULL;
 548   test_get->disconnect_task = GNUNET_SCHEDULER_NO_TASK;
 549 }
 550
 551 /**
 552  * Iterator called if the GET request initiated returns a response.
 553  *
 554  * @param cls closure
 555  * @param exp when will this value expire
 556  * @param key key of the result
 557  * @param type type of the result
 558  * @param size number of bytes in data
 559  * @param data pointer to the result data
 560  */
 561 void get_result_iterator (void *cls,
 562                           struct GNUNET_TIME_Absolute exp,
 563                           const GNUNET_HashCode * key,
 564                           uint32_t type,
 565                           uint32_t size,
 566                           const void *data)
 567 {
 568   struct TestGetContext *test_get = cls;
 569   GNUNET_HashCode search_key; /* Key stored under */
 570   char original_data[test_data_size]; /* Made up data to store */
 571
 572   memset(original_data, test_get->uid, sizeof(original_data));
 573   GNUNET_CRYPTO_hash(original_data, test_data_size, &search_key);
 574
 575   if (test_get->succeeded == GNUNET_YES)
 576     return; /* Get has already been successful, probably ending now */
 577
 578   if ((0 != memcmp(&search_key, key, sizeof (GNUNET_HashCode))) || (0 != memcmp(original_data, data, sizeof(original_data))))
 579     {
 580       GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Key or data is not the same as was inserted!\n");
 581     }
 582   else
 583     {
 584       gets_completed++;
 585       test_get->succeeded = GNUNET_YES;
 586     }
 587 #if VERBOSE > 1
 588   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Received correct GET response!\n");
 589 #endif
 590   GNUNET_SCHEDULER_cancel(sched, test_get->disconnect_task);
 591   GNUNET_SCHEDULER_add_continuation(sched, &get_stop_task, test_get, GNUNET_SCHEDULER_REASON_PREREQ_DONE);
 592 }
 593
 594 /**
 595  * Continuation telling us GET request was sent.
 596  */
 597 static void
 598 get_continuation (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
 599 {
 600   // Is there something to be done here?
 601   if (tc->reason != GNUNET_SCHEDULER_REASON_PREREQ_DONE)
 602     return;
 603 }
 604
 605 /**
 606  * Set up some data, and call API PUT function
 607  */
 608 static void
 609 do_get (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
 610 {
 611   struct TestGetContext *test_get = cls;
 612   GNUNET_HashCode key; /* Made up key to store data under */
 613   char data[test_data_size]; /* Made up data to store */
 614
 615   if (num_gets == 0)
 616     {
 617       GNUNET_SCHEDULER_cancel(sched, die_task);
 618       GNUNET_SCHEDULER_add_now(sched, &finish_testing, NULL);
 619     }
 620   if (test_get == NULL)
 621     return; /* End of the list */
 622
 623   memset(data, test_get->uid, sizeof(data));
 624   GNUNET_CRYPTO_hash(data, test_data_size, &key);
 625
 626   if (outstanding_gets > max_outstanding_gets)
 627     {
 628       GNUNET_SCHEDULER_add_delayed (sched, get_delay, &do_get, test_get);
 629       return;
 630     }
 631
 632   test_get->dht_handle = GNUNET_DHT_connect(sched, test_get->daemon->cfg, 10);
 633   /* Insert the data at the first peer */
 634   GNUNET_assert(test_get->dht_handle != NULL);
 635   outstanding_gets++;
 636   test_get->get_handle = GNUNET_DHT_get_start(test_get->dht_handle,
 637                                               GNUNET_TIME_relative_get_forever(),
 638                                               1,
 639                                               &key,
 640                                               &get_result_iterator,
 641                                               test_get,
 642                                               &get_continuation,
 643                                               test_get);
 644 #if VERBOSE > 1
 645   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Starting get for uid %u from peer %s\n",
 646              test_get->uid,
 647              test_get->daemon->shortname);
 648 #endif
 649   test_get->disconnect_task = GNUNET_SCHEDULER_add_delayed(sched, get_timeout, &get_stop_task, test_get);
 650   GNUNET_SCHEDULER_add_now (sched, &do_get, test_get->next);
 651 }
 652
 653 /**
 654  * Called when the PUT request has been transmitted to the DHT service.
 655  * Schedule the GET request for some time in the future.
 656  */
 657 static void
 658 put_finished (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
 659 {
 660   struct TestPutContext *test_put = cls;
 661   outstanding_puts--;
 662   puts_completed++;
 663
 664   if (tc->reason == GNUNET_SCHEDULER_REASON_TIMEOUT)
 665     fprintf(stderr, "PUT Request failed!\n");
 666
 667   GNUNET_SCHEDULER_cancel(sched, test_put->disconnect_task);
 668   test_put->disconnect_task = GNUNET_SCHEDULER_add_now(sched, &put_disconnect_task, test_put);
 669   if (GNUNET_YES == update_meter(put_meter))
 670     {
 671       GNUNET_assert(outstanding_puts == 0);
 672       GNUNET_SCHEDULER_cancel (sched, die_task);
 673       die_task = GNUNET_SCHEDULER_add_delayed (sched, all_get_timeout,
 674                                                &end_badly, "from do gets");
 675       GNUNET_SCHEDULER_add_delayed(sched, GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, settle_time), &do_get, all_gets);
 676       return;
 677     }
 678 }
 679
 680 /**
 681  * Set up some data, and call API PUT function
 682  */
 683 static void
 684 do_put (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
 685 {
 686   struct TestPutContext *test_put = cls;
 687   GNUNET_HashCode key; /* Made up key to store data under */
 688   char data[test_data_size]; /* Made up data to store */
 689   uint32_t rand;
 690
 691   if (test_put == NULL)
 692     return; /* End of list */
 693
 694   memset(data, test_put->uid, sizeof(data));
 695   GNUNET_CRYPTO_hash(data, test_data_size, &key);
 696
 697   if (outstanding_puts > max_outstanding_puts)
 698     {
 699       GNUNET_SCHEDULER_add_delayed (sched, put_delay, &do_put, test_put);
 700       return;
 701     }
 702
 703 #if VERBOSE > 1
 704     GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Starting put for uid %u from peer %s\n",
 705                test_put->uid,
 706                test_put->daemon->shortname);
 707 #endif
 708   test_put->dht_handle = GNUNET_DHT_connect(sched, test_put->daemon->cfg, 10);
 709
 710   GNUNET_assert(test_put->dht_handle != NULL);
 711   outstanding_puts++;
 712   GNUNET_DHT_put(test_put->dht_handle,
 713                  &key,
 714                  1,
 715                  sizeof(data), data,
 716                  GNUNET_TIME_absolute_get_forever(),
 717                  GNUNET_TIME_relative_get_forever(),
 718                  &put_finished, test_put);
 719   test_put->disconnect_task = GNUNET_SCHEDULER_add_delayed(sched, GNUNET_TIME_relative_get_forever(), &put_disconnect_task, test_put);
 720   rand = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, 2);
 721   GNUNET_SCHEDULER_add_delayed(sched, GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, rand), &do_put, test_put->next);
 722 }
 723
 724
 725 /**
 726  * Set up some all of the put and get operations we want
 727  * to do.  Allocate data structure for each, add to list,
 728  * then call actual insert functions.
 729  */
 730 static void
 731 setup_puts_and_gets (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
 732 {
 733   int i;
 734   uint32_t temp_daemon;
 735   struct TestPutContext *test_put;
 736   struct TestGetContext *test_get;
 737   int remember[num_puts][num_peers];
 738
 739   for (i = 0; i < num_puts; i++)
 740     {
 741       test_put = GNUNET_malloc(sizeof(struct TestPutContext));
 742       test_put->uid = i;
 743       temp_daemon = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers);
 744       test_put->daemon = GNUNET_TESTING_daemon_get(pg, temp_daemon);
 745       test_put->next = all_puts;
 746       all_puts = test_put;
 747     }
 748
 749   for (i = 0; i < num_gets; i++)
 750     {
 751       test_get = GNUNET_malloc(sizeof(struct TestGetContext));
 752       test_get->uid = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_puts);
 753       temp_daemon = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers);
 754       while (remember[test_get->uid][temp_daemon] == 1)
 755         temp_daemon = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers);
 756       test_get->daemon = GNUNET_TESTING_daemon_get(pg, temp_daemon);
 757       remember[test_get->uid][temp_daemon] = 1;
 758       test_get->next = all_gets;
 759       all_gets = test_get;
 760     }
 761
 762   /*GNUNET_SCHEDULER_cancel (sched, die_task);*/
 763   die_task = GNUNET_SCHEDULER_add_delayed (sched, GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, num_puts * 2),
 764                                            &end_badly, "from do puts");
 765   GNUNET_SCHEDULER_add_now (sched, &do_put, all_puts);
 766 }
 767 /**
 768  * This function is called whenever a connection attempt is finished between two of
 769  * the started peers (started with GNUNET_TESTING_daemons_start).  The total
 770  * number of times this function is called should equal the number returned
 771  * from the GNUNET_TESTING_connect_topology call.
 772  *
 773  * The emsg variable is NULL on success (peers connected), and non-NULL on
 774  * failure (peers failed to connect).
 775  */
 776 void
 777 topology_callback (void *cls,
 778                    const struct GNUNET_PeerIdentity *first,
 779                    const struct GNUNET_PeerIdentity *second,
 780                    uint32_t distance,
 781                    const struct GNUNET_CONFIGURATION_Handle *first_cfg,
 782                    const struct GNUNET_CONFIGURATION_Handle *second_cfg,
 783                    struct GNUNET_TESTING_Daemon *first_daemon,
 784                    struct GNUNET_TESTING_Daemon *second_daemon,
 785                    const char *emsg)
 786 {
 787   if (emsg == NULL)
 788     {
 789       total_connections++;
 790 #if VERBOSE > 1
 791       GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "connected peer %s to peer %s, distance %u\n",
 792                  first_daemon->shortname,
 793                  second_daemon->shortname,
 794                  distance);
 795 #endif
 796     }
 797 #if VERBOSE
 798   else
 799     {
 800       failed_connections++;
 801       GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Failed to connect peer %s to peer %s with error :\n%s\n",
 802                   first_daemon->shortname,
 803                   second_daemon->shortname, emsg);
 804     }
 805 #endif
 806   GNUNET_assert(peer_connect_meter != NULL);
 807   if (GNUNET_YES == update_meter(peer_connect_meter))
 808     {
 809 #if VERBOSE
 810       GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 811                   "Created %d total connections, which is our target number!  Starting next phase of testing.\n",
 812                   total_connections);
 813 #endif
 814       if (dhtlog_handle != NULL)
 815         dhtlog_handle->update_connections (trialuid, total_connections);
 816
 817       GNUNET_SCHEDULER_cancel (sched, die_task);
 818       /*die_task = GNUNET_SCHEDULER_add_delayed (sched, DEFAULT_TIMEOUT,
 819                                                &end_badly, "from setup puts/gets");*/
 820
 821       GNUNET_SCHEDULER_add_delayed (sched, GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, settle_time), &setup_puts_and_gets, NULL);
 822     }
 823   else if (total_connections + failed_connections == expected_connections)
 824     {
 825       GNUNET_SCHEDULER_cancel (sched, die_task);
 826       die_task = GNUNET_SCHEDULER_add_now (sched,
 827                                            &end_badly, "from topology_callback (too many failed connections)");
 828     }
 829 }
 830
 831 static void
 832 peers_started_callback (void *cls,
 833        const struct GNUNET_PeerIdentity *id,
 834        const struct GNUNET_CONFIGURATION_Handle *cfg,
 835        struct GNUNET_TESTING_Daemon *d, const char *emsg)
 836 {
 837   if (emsg != NULL)
 838     {
 839       GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Failed to start daemon with error: `%s'\n",
 840                   emsg);
 841       return;
 842     }
 843   GNUNET_assert (id != NULL);
 844
 845 #if VERBOSE > 1
 846   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Started daemon %llu out of %llu\n",
 847               (num_peers - peers_left) + 1, num_peers);
 848 #endif
 849
 850   peers_left--;
 851
 852   if (GNUNET_YES == update_meter(peer_start_meter))
 853     {
 854 #if VERBOSE
 855       GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 856                   "All %d daemons started, now connecting peers!\n",
 857                   num_peers);
 858 #endif
 859       GNUNET_SCHEDULER_cancel (sched, die_task);
 860
 861       expected_connections = -1;
 862       if ((pg != NULL) && (peers_left == 0))
 863         {
 864           expected_connections = GNUNET_TESTING_connect_topology (pg, connect_topology, connect_topology_option, connect_topology_option_modifier);
 865           peer_connect_meter = create_meter(expected_connections, "Peer connection ", GNUNET_YES);
 866 #if VERBOSE
 867           GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 868                       "Have %d expected connections\n", expected_connections);
 869 #endif
 870         }
 871
 872       if (expected_connections == GNUNET_SYSERR)
 873         {
 874           die_task = GNUNET_SCHEDULER_add_now (sched,
 875                                                &end_badly, "from connect topology (bad return)");
 876         }
 877
 878       die_task = GNUNET_SCHEDULER_add_delayed (sched,
 879                                                GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, DEFAULT_CONNECT_TIMEOUT * expected_connections),
 880                                                &end_badly, "from connect topology (timeout)");
 881
 882       ok = 0;
 883     }
 884 }
 885
 886 static void
 887 create_topology ()
 888 {
 889   peers_left = num_peers; /* Reset counter */
 890   if (GNUNET_TESTING_create_topology (pg, topology, blacklist_topology, blacklist_transports) != GNUNET_SYSERR)
 891     {
 892 #if VERBOSE
 893       GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 894                   "Topology set up, now starting peers!\n");
 895 #endif
 896       GNUNET_TESTING_daemons_continue_startup(pg);
 897     }
 898   else
 899     {
 900       GNUNET_SCHEDULER_cancel (sched, die_task);
 901       die_task = GNUNET_SCHEDULER_add_now (sched,
 902                                            &end_badly, "from create topology (bad return)");
 903     }
 904   GNUNET_SCHEDULER_cancel (sched, die_task);
 905   die_task = GNUNET_SCHEDULER_add_delayed (sched,
 906                                            GNUNET_TIME_relative_multiply(seconds_per_peer_start, num_peers),
 907                                            &end_badly, "from continue startup (timeout)");
 908 }
 909
 910 /**
 911  * Callback indicating that the hostkey was created for a peer.
 912  *
 913  * @param cls NULL
 914  * @param id the peer identity
 915  * @param d the daemon handle (pretty useless at this point, remove?)
 916  * @param emsg non-null on failure
 917  */
 918 void hostkey_callback (void *cls,
 919                        const struct GNUNET_PeerIdentity *id,
 920                        struct GNUNET_TESTING_Daemon *d,
 921                        const char *emsg)
 922 {
 923   if (emsg != NULL)
 924     {
 925       GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Hostkey callback received error: %s\n", emsg);
 926     }
 927
 928 #if VERBOSE > 1
 929     GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 930                 "Hostkey (%d/%d) created for peer `%s'\n",
 931                 num_peers - peers_left, num_peers, GNUNET_i2s(id));
 932 #endif
 933
 934     peers_left--;
 935     if (GNUNET_YES == update_meter(hostkey_meter))
 936       {
 937 #if VERBOSE
 938         GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 939                     "All %d hostkeys created, now creating topology!\n",
 940                     num_peers);
 941 #endif
 942         GNUNET_SCHEDULER_cancel (sched, die_task);
 943         /* Set up task in case topology creation doesn't finish
 944          * within a reasonable amount of time */
 945         die_task = GNUNET_SCHEDULER_add_delayed (sched,
 946                                                  DEFAULT_TOPOLOGY_TIMEOUT,
 947                                                  &end_badly, "from create_topology");
 948         GNUNET_SCHEDULER_add_now(sched, &create_topology, NULL);
 949         ok = 0;
 950       }
 951 }
 952
 953
 954 static void
 955 run (void *cls,
 956      struct GNUNET_SCHEDULER_Handle *s,
 957      char *const *args,
 958      const char *cfgfile, const struct GNUNET_CONFIGURATION_Handle *cfg)
 959 {
 960   struct GNUNET_TESTING_Host *hosts;
 961   struct GNUNET_TESTING_Host *temphost;
 962   char * topology_str;
 963   char * connect_topology_str;
 964   char * blacklist_topology_str;
 965   char * connect_topology_option_str;
 966   char * connect_topology_option_modifier_string;
 967   char *trialmessage;
 968   char * topology_percentage_str;
 969   float topology_percentage;
 970   char * topology_probability_str;
 971   char * hostfile;
 972   float topology_probability;
 973   unsigned long long temp_config_number;
 974   char *buf;
 975   char *data;
 976
 977   struct stat frstat;
 978   int count;
 979
 980   sched = s;
 981
 982   /* Get path from configuration file */
 983   if (GNUNET_YES != GNUNET_CONFIGURATION_get_value_string(cfg, "paths", "servicehome", &test_directory))
 984     {
 985       ok = 404;
 986       return;
 987     }
 988
 989   /**
 990    * Get DHT specific testing options.
 991    */
 992   if ((GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht_testing", "mysql_logging"))||
 993       (GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht_testing", "mysql_logging_extended")))
 994     {
 995       dhtlog_handle = GNUNET_DHTLOG_connect(cfg);
 996       if (dhtlog_handle == NULL)
 997         {
 998           GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
 999                       "Could not connect to mysql server for logging, will NOT log dht operations!");
1000           ok = 3306;
1001           return;
1002         }
1003     }
1004
1005   if (GNUNET_OK !=
1006       GNUNET_CONFIGURATION_get_value_string (cfg, "dht_testing", "comment",
1007                                              &trialmessage))
1008     trialmessage = NULL;
1009
1010   if (GNUNET_OK !=
1011       GNUNET_CONFIGURATION_get_value_string (cfg, "testing", "hostfile",
1012                                              &hostfile))
1013     hostfile = NULL;
1014
1015   hosts = NULL;
1016   if (hostfile != NULL)
1017     {
1018       if (GNUNET_OK != GNUNET_DISK_file_test (hostfile))
1019           GNUNET_DISK_fn_write (hostfile, NULL, 0, GNUNET_DISK_PERM_USER_READ
1020             | GNUNET_DISK_PERM_USER_WRITE);
1021       if ((0 != STAT (hostfile, &frstat)) || (frstat.st_size == 0))
1022         {
1023           GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
1024                       "Could not open file specified for host list, ending test!");
1025           ok = 1119;
1026           GNUNET_free_non_null(trialmessage);
1027           GNUNET_free(hostfile);
1028           return;
1029         }
1030
1031     data = GNUNET_malloc_large (frstat.st_size);
1032     GNUNET_assert(data != NULL);
1033     if (frstat.st_size !=
1034         GNUNET_DISK_fn_read (hostfile, data, frstat.st_size))
1035       {
1036         GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
1037                   "Could not read file %s specified for host list, ending test!", hostfile);
1038         GNUNET_free (hostfile);
1039         GNUNET_free (data);
1040         return;
1041       }
1042
1043     buf = data;
1044     count = 0;
1045     while (count < frstat.st_size)
1046       {
1047         count++;
1048         if (((data[count] == '\n') || (data[count] == '\0')) && (buf != &data[count]))
1049           {
1050             data[count] = '\0';
1051             temphost = GNUNET_malloc(sizeof(struct GNUNET_TESTING_Host));
1052             temphost->hostname = buf;
1053             temphost->next = hosts;
1054             hosts = temphost;
1055             buf = &data[count + 1];
1056           }
1057         else if ((data[count] == '\n') || (data[count] == '\0'))
1058           buf = &data[count + 1];
1059       }
1060     }
1061
1062   if (GNUNET_OK !=
1063           GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "malicious_getters",
1064                                                  &malicious_getters))
1065     malicious_getters = 0;
1066
1067   if (GNUNET_OK !=
1068           GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "malicious_putters",
1069                                                  &malicious_putters))
1070     malicious_putters = 0;
1071
1072   if (GNUNET_OK !=
1073             GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "malicious_droppers",
1074                                                    &malicious_droppers))
1075     malicious_droppers = 0;
1076
1077   if (GNUNET_OK !=
1078       GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "settle_time",
1079                                                  &settle_time))
1080     settle_time = 0;
1081
1082   if (GNUNET_SYSERR ==
1083       GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "num_puts",
1084                                              &num_puts))
1085     num_puts = num_peers;
1086
1087   if (GNUNET_SYSERR ==
1088       GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "num_gets",
1089                                              &num_gets))
1090     num_gets = num_peers;
1091
1092   if (GNUNET_OK ==
1093         GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "get_timeout",
1094                                                &temp_config_number))
1095     get_timeout = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_config_number);
1096   else
1097     get_timeout = DEFAULT_GET_TIMEOUT;
1098
1099   if (GNUNET_OK ==
1100         GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "concurrent_puts",
1101                                                &temp_config_number))
1102     max_outstanding_puts = temp_config_number;
1103   else
1104     max_outstanding_puts = DEFAULT_MAX_OUTSTANDING_PUTS;
1105
1106   if (GNUNET_OK ==
1107         GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "concurrent_gets",
1108                                                &temp_config_number))
1109     max_outstanding_gets = temp_config_number;
1110   else
1111     max_outstanding_gets = DEFAULT_MAX_OUTSTANDING_GETS;
1112
1113   if (GNUNET_OK ==
1114         GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "timeout",
1115                                                &temp_config_number))
1116     all_get_timeout = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_config_number);
1117   else
1118     all_get_timeout.value = get_timeout.value * ((num_gets / max_outstanding_gets) + 1);
1119
1120   if (GNUNET_OK ==
1121         GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "get_delay",
1122                                                &temp_config_number))
1123     get_delay = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_config_number);
1124   else
1125     get_delay = DEFAULT_GET_DELAY;
1126
1127   if (GNUNET_OK ==
1128         GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "put_delay",
1129                                                &temp_config_number))
1130     put_delay = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_config_number);
1131   else
1132     put_delay = DEFAULT_PUT_DELAY;
1133
1134   if (GNUNET_OK ==
1135       GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "peer_start_timeout",
1136                                              &temp_config_number))
1137     seconds_per_peer_start = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_config_number);
1138   else
1139     seconds_per_peer_start = DEFAULT_SECONDS_PER_PEER_START;
1140
1141   if (GNUNET_OK ==
1142         GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "data_size",
1143                                                &temp_config_number))
1144     test_data_size = temp_config_number;
1145   else
1146     test_data_size = DEFAULT_TEST_DATA_SIZE;
1147
1148   /**
1149    * Get testing related options.
1150    */
1151   if ((GNUNET_YES ==
1152       GNUNET_CONFIGURATION_get_value_string(cfg, "testing", "topology",
1153                                             &topology_str)) && (GNUNET_NO == GNUNET_TESTING_topology_get(&topology, topology_str)))
1154     {
1155       GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
1156                   "Invalid topology `%s' given for section %s option %s\n", topology_str, "TESTING", "TOPOLOGY");
1157       topology = GNUNET_TESTING_TOPOLOGY_CLIQUE; /* Defaults to NONE, so set better default here */
1158     }
1159
1160   if (GNUNET_OK !=
1161       GNUNET_CONFIGURATION_get_value_string (cfg, "testing", "percentage",
1162                                                  &topology_percentage_str))
1163     topology_percentage = 0.5;
1164   else
1165     {
1166       topology_percentage = atof (topology_percentage_str);
1167     }
1168
1169   if (GNUNET_OK !=
1170       GNUNET_CONFIGURATION_get_value_string (cfg, "testing", "probability",
1171                                                  &topology_probability_str))
1172     topology_probability = 0.5;
1173   else
1174     {
1175      topology_probability = atof (topology_probability_str);
1176     }
1177
1178   if ((GNUNET_YES ==
1179       GNUNET_CONFIGURATION_get_value_string(cfg, "testing", "connect_topology",
1180                                             &connect_topology_str)) && (GNUNET_NO == GNUNET_TESTING_topology_get(&connect_topology, connect_topology_str)))
1181     {
1182       GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
1183                   "Invalid connect topology `%s' given for section %s option %s\n", connect_topology_str, "TESTING", "CONNECT_TOPOLOGY");
1184     }
1185   GNUNET_free_non_null(connect_topology_str);
1186   if ((GNUNET_YES ==
1187       GNUNET_CONFIGURATION_get_value_string(cfg, "testing", "connect_topology_option",
1188                                             &connect_topology_option_str)) && (GNUNET_NO == GNUNET_TESTING_topology_option_get(&connect_topology_option, connect_topology_option_str)))
1189     {
1190       GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
1191                   "Invalid connect topology option `%s' given for section %s option %s\n", connect_topology_option_str, "TESTING", "CONNECT_TOPOLOGY_OPTION");
1192       connect_topology_option = GNUNET_TESTING_TOPOLOGY_OPTION_ALL; /* Defaults to NONE, set to ALL */
1193     }
1194   GNUNET_free_non_null(connect_topology_option_str);
1195   if (GNUNET_YES ==
1196         GNUNET_CONFIGURATION_get_value_string (cfg, "testing", "connect_topology_option_modifier",
1197                                                &connect_topology_option_modifier_string))
1198     {
1199       if (sscanf(connect_topology_option_modifier_string, "%lf", &connect_topology_option_modifier) != 1)
1200       {
1201         GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
1202         _("Invalid value `%s' for option `%s' in section `%s': expected float\n"),
1203         connect_topology_option_modifier_string,
1204         "connect_topology_option_modifier",
1205         "TESTING");
1206       }
1207       GNUNET_free (connect_topology_option_modifier_string);
1208     }
1209
1210   if (GNUNET_YES != GNUNET_CONFIGURATION_get_value_string (cfg, "testing", "blacklist_transports",
1211                                          &blacklist_transports))
1212     blacklist_transports = NULL;
1213
1214   if ((GNUNET_YES ==
1215       GNUNET_CONFIGURATION_get_value_string(cfg, "testing", "blacklist_topology",
1216                                             &blacklist_topology_str)) &&
1217       (GNUNET_NO == GNUNET_TESTING_topology_get(&blacklist_topology, blacklist_topology_str)))
1218     {
1219       GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
1220                   "Invalid topology `%s' given for section %s option %s\n", topology_str, "TESTING", "BLACKLIST_TOPOLOGY");
1221     }
1222   GNUNET_free_non_null(topology_str);
1223   GNUNET_free_non_null(blacklist_topology_str);
1224
1225   /* Get number of peers to start from configuration */
1226   if (GNUNET_SYSERR ==
1227       GNUNET_CONFIGURATION_get_value_number (cfg, "testing", "num_peers",
1228                                              &num_peers))
1229     {
1230       GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
1231                   "Number of peers must be specified in section %s option %s\n", topology_str, "TESTING", "NUM_PEERS");
1232     }
1233
1234   /* Set peers_left so we know when all peers started */
1235   peers_left = num_peers;
1236
1237   /* Set up a task to end testing if peer start fails */
1238   die_task = GNUNET_SCHEDULER_add_delayed (sched,
1239                                            GNUNET_TIME_relative_multiply(seconds_per_peer_start, num_peers),
1240                                            &end_badly, "didn't generate all hostkeys within allowed startup time!");
1241
1242   if (dhtlog_handle == NULL)
1243     GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
1244                 "dhtlog_handle is NULL!");
1245
1246   if ((trialmessage != NULL) && (dhtlog_handle != NULL))
1247     {
1248       dhtlog_handle->insert_trial (&trialuid, peers_left, topology,
1249                                     blacklist_topology, connect_topology,
1250                                     connect_topology_option,
1251                                     connect_topology_option_modifier, topology_percentage,
1252                                     topology_probability, num_puts, num_gets,
1253                                     max_outstanding_gets, settle_time, 1,
1254                                     malicious_getters, malicious_putters,
1255                                     malicious_droppers, trialmessage);
1256     }
1257   else if (dhtlog_handle != NULL)
1258     {
1259       dhtlog_handle->insert_trial (&trialuid, peers_left, topology,
1260                                     blacklist_topology, connect_topology,
1261                                     connect_topology_option,
1262                                     connect_topology_option_modifier, topology_percentage,
1263                                     topology_probability, num_puts, num_gets,
1264                                     max_outstanding_gets, settle_time, 1,
1265                                     malicious_getters, malicious_putters,
1266                                     malicious_droppers, "");
1267     }
1268
1269   hostkey_meter = create_meter(peers_left, "Hostkeys created ", GNUNET_YES);
1270   peer_start_meter = create_meter(peers_left, "Peers started ", GNUNET_YES);
1271
1272   put_meter = create_meter(num_puts, "Puts completed ", GNUNET_YES);
1273   get_meter = create_meter(num_gets, "Gets completed ", GNUNET_YES);
1274   pg = GNUNET_TESTING_daemons_start (sched, cfg,
1275                                      peers_left,
1276                                      GNUNET_TIME_relative_multiply(seconds_per_peer_start, num_peers),
1277                                      &hostkey_callback, NULL,
1278                                      &peers_started_callback, NULL,
1279                                      &topology_callback, NULL,
1280                                      hosts);
1281
1282 }
1283
1284
1285 int
1286 main (int argc, char *argv[])
1287 {
1288   int ret;
1289   struct GNUNET_GETOPT_CommandLineOption options[] = {
1290       GNUNET_GETOPT_OPTION_END
1291     };
1292
1293   ret = GNUNET_PROGRAM_run (argc,
1294                             argv, "gnunet-dht-driver", "nohelp",
1295                             options, &run, &ok);
1296
1297   if (ret != GNUNET_OK)
1298     {
1299       GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "`gnunet-dht-driver': Failed with error code %d\n", ret);
1300     }
1301
1302   /**
1303    * Need to remove base directory, subdirectories taken care
1304    * of by the testing framework.
1305    */
1306   if (GNUNET_DISK_directory_remove (test_directory) != GNUNET_OK)
1307     {
1308       GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Failed to remove testing directory %s\n", test_directory);
1309     }
1310   return ret;
1311 }
1312
1313 /* end of test_dht_twopeer_put_get.c */