src/gns/test_gns_dht_threepeer.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 gns/test_gns_dht_threepeer.c
  22  * @brief tests dht lookup over 3 peers
  23  *
  24  * topology:
  25  * alice <----> bob <-----> dave
  26  *
  27  * alice queries for www.buddy.bob.gnunet
  28  *
  29  */
  30 #include "platform.h"
  31 #include "gnunet_disk_lib.h"
  32 #include "gnunet_testing_lib.h"
  33 #include "gnunet_core_service.h"
  34 #include "gnunet_dht_service.h"
  35 #include "block_dns.h"
  36 #include "gnunet_signatures.h"
  37 #include "gnunet_namestore_service.h"
  38 #include "gnunet_dnsparser_lib.h"
  39 #include "gnunet_gns_service.h"
  40
  41 /* DEFINES */
  42 #define VERBOSE GNUNET_YES
  43
  44 /* Timeout for entire testcase */
  45 #define TIMEOUT GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 180)
  46 #define ZONE_PUT_WAIT_TIME GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 30)
  47
  48 /* If number of peers not in config file, use this number */
  49 #define DEFAULT_NUM_PEERS 2
  50
  51 #define TEST_DOMAIN "www.buddy.bob.gnunet"
  52 #define TEST_IP "1.1.1.1"
  53 #define TEST_DAVE_PSEU "hagbard"
  54 #define TEST_NUM_PEERS 3
  55 #define TEST_NUM_CON 3
  56
  57 /* Globals */
  58
  59 /**
  60  * Directory to store temp data in, defined in config file
  61  */
  62 static char *test_directory;
  63
  64 /**
  65  * Variable used to store the number of connections we should wait for.
  66  */
  67 static unsigned int expected_connections;
  68
  69 /**
  70  * Variable used to keep track of how many peers aren't yet started.
  71  */
  72 static unsigned long long peers_left;
  73
  74 struct GNUNET_TESTING_Daemon *d1;
  75 struct GNUNET_TESTING_Daemon *d2;
  76 struct GNUNET_TESTING_Daemon *d3;
  77
  78
  79 /**
  80  * Total number of peers to run, set based on config file.
  81  */
  82 static unsigned long long num_peers;
  83
  84 /**
  85  * Global used to count how many connections we have currently
  86  * been notified about (how many times has topology_callback been called
  87  * with success?)
  88  */
  89 static unsigned int total_connections;
  90
  91 /**
  92  * Global used to count how many failed connections we have
  93  * been notified about (how many times has topology_callback
  94  * been called with failure?)
  95  */
  96 static unsigned int failed_connections;
  97
  98 /* Task handle to use to schedule test failure */
  99 GNUNET_SCHEDULER_TaskIdentifier die_task;
 100
 101 GNUNET_SCHEDULER_TaskIdentifier bob_task;
 102
 103 /* Global return value (0 for success, anything else for failure) */
 104 static int ok;
 105
 106 int bob_online, alice_online, dave_online;
 107
 108 const struct GNUNET_CONFIGURATION_Handle *alice_cfg;
 109 struct GNUNET_CONFIGURATION_Handle *cfg_bob;
 110 struct GNUNET_CONFIGURATION_Handle *cfg_dave;
 111
 112 struct GNUNET_CRYPTO_ShortHashCode bob_hash;
 113 struct GNUNET_CRYPTO_ShortHashCode dave_hash;
 114 struct GNUNET_TESTING_Daemon *alice_daemon;
 115 struct GNUNET_TESTING_Daemon *bob_daemon;
 116 struct GNUNET_TESTING_Daemon *dave_daemon;
 117
 118 struct GNUNET_TESTING_PeerGroup *pg;
 119 struct GNUNET_GNS_Handle *gh;
 120
 121 /**
 122  * Function scheduled to be run on the successful completion of this
 123  * testcase.  Specifically, called when our get request completes.
 124  */
 125 static void
 126 finish_testing (void *cls, const char *emsg)
 127 {
 128   GNUNET_log (GNUNET_ERROR_TYPE_INFO, "Test finished! (ret=%d)\n", ok);
 129 }
 130
 131 /**
 132  * Continuation for the GNUNET_DHT_get_stop call, so that we don't shut
 133  * down the peers without freeing memory associated with GET request.
 134  */
 135 static void
 136 end_badly_cont (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
 137 {
 138   die_task = GNUNET_SCHEDULER_NO_TASK;
 139   GNUNET_TESTING_daemons_stop (pg, TIMEOUT, &finish_testing, NULL);
 140 }
 141
 142 /**
 143  * Check if the get_handle is being used, if so stop the request.  Either
 144  * way, schedule the end_badly_cont function which actually shuts down the
 145  * test.
 146  */
 147 static void
 148 end_badly (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
 149 {
 150   die_task = GNUNET_SCHEDULER_NO_TASK;
 151   GNUNET_log (GNUNET_ERROR_TYPE_INFO, "Failing test with error: `%s'!\n",
 152               (char *) cls);
 153   die_task = GNUNET_SCHEDULER_add_now (&end_badly_cont, NULL);
 154   ok = 1;
 155 }
 156
 157
 158 static void
 159 on_lookup_result(void *cls, uint32_t rd_count,
 160                  const struct GNUNET_NAMESTORE_RecordData *rd)
 161 {
 162   int i;
 163   char* string_val;
 164   const char* typename;
 165
 166   if (rd_count == 0)
 167   {
 168     GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
 169                 "Lookup failed!\n");
 170     ok = 2;
 171   }
 172   else
 173   {
 174     ok = 1;
 175     GNUNET_log (GNUNET_ERROR_TYPE_INFO, "name: %s\n", (char*)cls);
 176     for (i=0; i<rd_count; i++)
 177     {
 178       typename = GNUNET_NAMESTORE_number_to_typename (rd[i].record_type);
 179       string_val = GNUNET_NAMESTORE_value_to_string(rd[i].record_type,
 180                                                     rd[i].data,
 181                                                     rd[i].data_size);
 182       printf("Got %s record: %s\n", typename, string_val);
 183       if (0 == strcmp(string_val, TEST_IP))
 184       {
 185         GNUNET_log (GNUNET_ERROR_TYPE_INFO,
 186                     "%s correctly resolved to %s!\n", TEST_DOMAIN, string_val);
 187         ok = 0;
 188       }
 189     }
 190   }
 191   GNUNET_GNS_disconnect(gh);
 192   GNUNET_SCHEDULER_cancel(die_task);
 193   die_task = GNUNET_SCHEDULER_NO_TASK;
 194   GNUNET_TESTING_daemons_stop (pg, TIMEOUT, &finish_testing, NULL);
 195   GNUNET_log (GNUNET_ERROR_TYPE_INFO, "Shutting down!\n");
 196
 197 }
 198
 199 static void
 200 commence_testing(void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
 201 {
 202
 203
 204   gh = GNUNET_GNS_connect(alice_cfg);
 205
 206   GNUNET_GNS_lookup(gh, TEST_DOMAIN, GNUNET_GNS_RECORD_TYPE_A,
 207                     &on_lookup_result, TEST_DOMAIN);
 208   die_task =
 209     GNUNET_SCHEDULER_add_delayed (TIMEOUT, &end_badly, "from lookup");
 210 }
 211
 212
 213 /**
 214  * This function is called whenever a connection attempt is finished between two of
 215  * the started peers (started with GNUNET_TESTING_daemons_start).  The total
 216  * number of times this function is called should equal the number returned
 217  * from the GNUNET_TESTING_connect_topology call.
 218  *
 219  * The emsg variable is NULL on success (peers connected), and non-NULL on
 220  * failure (peers failed to connect).
 221  */
 222 void
 223 daemon_connected (void *cls, const struct GNUNET_PeerIdentity *first,
 224                    const struct GNUNET_PeerIdentity *second, uint32_t distance,
 225                    const struct GNUNET_CONFIGURATION_Handle *first_cfg,
 226                    const struct GNUNET_CONFIGURATION_Handle *second_cfg,
 227                    struct GNUNET_TESTING_Daemon *first_daemon,
 228                    struct GNUNET_TESTING_Daemon *second_daemon,
 229                    const char *emsg)
 230 {
 231   if (emsg == NULL)
 232   {
 233     total_connections++;
 234 #if VERBOSE
 235     GNUNET_log (GNUNET_ERROR_TYPE_INFO,
 236                 "connected peer %s to peer %s, distance %u\n",
 237                 first_daemon->shortname, second_daemon->shortname, distance);
 238 #endif
 239   }
 240 #if VERBOSE
 241   else
 242   {
 243     failed_connections++;
 244     GNUNET_log (GNUNET_ERROR_TYPE_INFO,
 245                 "Failed to connect peer %s to peer %s with error :\n%s\n",
 246                 first_daemon->shortname, second_daemon->shortname, emsg);
 247   }
 248 #endif
 249
 250   if (total_connections == expected_connections)
 251   {
 252 #if VERBOSE
 253     GNUNET_log (GNUNET_ERROR_TYPE_INFO,
 254                 "Created %d total connections, which is our target number!  Starting next phase of testing.\n",
 255                 total_connections);
 256 #endif
 257     GNUNET_SCHEDULER_cancel (die_task);
 258     die_task = GNUNET_SCHEDULER_NO_TASK;
 259     //die_task =
 260     //    GNUNET_SCHEDULER_add_delayed (TIMEOUT, &end_badly, "from connect");
 261
 262     //commence_testing();
 263
 264   }
 265   else if (total_connections + failed_connections == expected_connections)
 266   {
 267     GNUNET_SCHEDULER_cancel (die_task);
 268     die_task =
 269         GNUNET_SCHEDULER_add_now (&end_badly,
 270                                   "from topology_callback (too many failed connections)");
 271   }
 272 }
 273
 274 void
 275 all_connected(void *cls, const char *emsg)
 276 {
 277   GNUNET_log (GNUNET_ERROR_TYPE_INFO,
 278               "Created all connections!  Starting next phase of testing.\n");
 279   GNUNET_SCHEDULER_add_delayed (ZONE_PUT_WAIT_TIME, &commence_testing, NULL);
 280 }
 281
 282 void
 283 ns_create_cont(void *cls, int32_t s, const char *emsg)
 284 {
 285   GNUNET_NAMESTORE_disconnect((struct GNUNET_NAMESTORE_Handle *)cls, 0);
 286 }
 287
 288 static void
 289 daemon_started (void *cls, const struct GNUNET_PeerIdentity *id,
 290                 const struct GNUNET_CONFIGURATION_Handle *cfg,
 291                 struct GNUNET_TESTING_Daemon *d, const char *emsg)
 292 {
 293   struct GNUNET_NAMESTORE_Handle *ns;
 294   char* keyfile;
 295   struct GNUNET_CRYPTO_RsaPrivateKey *key;
 296   struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded pkey;
 297   struct in_addr *web;
 298   struct GNUNET_NAMESTORE_RecordData rd;
 299
 300   rd.flags = GNUNET_NAMESTORE_RF_AUTHORITY | GNUNET_NAMESTORE_RF_NONE;
 301   rd.expiration = GNUNET_TIME_UNIT_FOREVER_ABS;
 302
 303   if (NULL == dave_daemon)
 304   {
 305     if (GNUNET_OK != GNUNET_CONFIGURATION_get_value_filename (cfg, "gns",
 306                                                               "ZONEKEY",
 307                                                               &keyfile))
 308     {
 309       GNUNET_log(GNUNET_ERROR_TYPE_ERROR, "Failed to get key from cfg\n");
 310       ok = -1;
 311       return;
 312     }
 313     dave_daemon = d;
 314
 315     key = GNUNET_CRYPTO_rsa_key_create_from_file (keyfile);
 316
 317     GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "This is now dave\n");
 318     ns = GNUNET_NAMESTORE_connect(cfg);
 319
 320     GNUNET_CRYPTO_rsa_key_get_public (key, &pkey);
 321     GNUNET_CRYPTO_short_hash(&pkey, sizeof(pkey), &dave_hash);
 322
 323     web = GNUNET_malloc(sizeof(struct in_addr));
 324     GNUNET_assert(1 == inet_pton (AF_INET, TEST_IP, web));
 325     rd.data_size = sizeof(struct in_addr);
 326     rd.data = web;
 327     rd.record_type = GNUNET_GNS_RECORD_TYPE_A;
 328
 329     GNUNET_NAMESTORE_record_create (ns, key, "www", &rd, NULL, NULL);
 330
 331     rd.data_size = strlen(TEST_DAVE_PSEU);
 332     rd.data = TEST_DAVE_PSEU;
 333     rd.record_type = GNUNET_GNS_RECORD_PSEU;
 334
 335     GNUNET_NAMESTORE_record_create (ns, key, "+", &rd, ns_create_cont, ns);
 336
 337     GNUNET_CRYPTO_rsa_key_free(key);
 338     GNUNET_free(keyfile);
 339     GNUNET_free(web);
 340
 341     return;
 342   }
 343
 344
 345   if (NULL == bob_daemon)
 346   {
 347     if (GNUNET_OK != GNUNET_CONFIGURATION_get_value_filename (cfg, "gns",
 348                                                               "ZONEKEY",
 349                                                               &keyfile))
 350     {
 351       GNUNET_log(GNUNET_ERROR_TYPE_ERROR, "Failed to get key from cfg\n");
 352       ok = -1;
 353       return;
 354     }
 355     bob_daemon = d;
 356
 357     key = GNUNET_CRYPTO_rsa_key_create_from_file (keyfile);
 358
 359     GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "This is now bob\n");
 360     ns = GNUNET_NAMESTORE_connect(cfg);
 361
 362     GNUNET_CRYPTO_rsa_key_get_public (key, &pkey);
 363     GNUNET_CRYPTO_short_hash(&pkey, sizeof(pkey), &bob_hash);
 364
 365     rd.data_size = sizeof(struct GNUNET_CRYPTO_ShortHashCode);
 366     rd.data = &dave_hash;
 367     rd.record_type = GNUNET_GNS_RECORD_PKEY;
 368
 369     GNUNET_NAMESTORE_record_create (ns, key, "buddy", &rd, ns_create_cont, ns);
 370
 371     GNUNET_CRYPTO_rsa_key_free(key);
 372     GNUNET_free(keyfile);
 373
 374     return;
 375   }
 376
 377
 378
 379   if (NULL == alice_daemon)
 380   {
 381
 382     if (GNUNET_OK != GNUNET_CONFIGURATION_get_value_filename (cfg, "gns",
 383                                                               "ZONEKEY",
 384                                                               &keyfile))
 385     {
 386       GNUNET_log(GNUNET_ERROR_TYPE_ERROR, "Failed to get key from cfg\n");
 387       ok = -1;
 388       return;
 389     }
 390     alice_daemon = d;
 391     alice_cfg = cfg;
 392
 393     key = GNUNET_CRYPTO_rsa_key_create_from_file (keyfile);
 394
 395     GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "This is now alice\n");
 396     ns = GNUNET_NAMESTORE_connect(cfg);
 397
 398     rd.data_size = sizeof(struct GNUNET_CRYPTO_ShortHashCode);
 399     rd.data = &bob_hash;
 400     rd.record_type = GNUNET_GNS_RECORD_PKEY;
 401
 402     GNUNET_NAMESTORE_record_create (ns, key, "bob", &rd, ns_create_cont, ns);
 403
 404     GNUNET_CRYPTO_rsa_key_free(key);
 405     GNUNET_free(keyfile);
 406
 407     GNUNET_TESTING_connect_topology (pg, GNUNET_TESTING_TOPOLOGY_CLIQUE,
 408                                      GNUNET_TESTING_TOPOLOGY_OPTION_ALL,
 409                                      0,
 410                                      TIMEOUT,
 411                                      3,
 412                                      &all_connected, NULL);
 413     return;
 414
 415   }
 416
 417
 418
 419   GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "This is a random guy\n");
 420 }
 421
 422 static void
 423 run (void *cls, char *const *args, const char *cfgfile,
 424      const struct GNUNET_CONFIGURATION_Handle *cfg)
 425 {
 426
 427   /* Get path from configuration file */
 428   if (GNUNET_YES !=
 429       GNUNET_CONFIGURATION_get_value_string (cfg, "paths", "servicehome",
 430                                              &test_directory))
 431   {
 432     ok = 404;
 433     return;
 434   }
 435
 436   GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "starting\n");
 437
 438   /* Get number of peers to start from configuration (should be two) */
 439   if (GNUNET_SYSERR ==
 440       GNUNET_CONFIGURATION_get_value_number (cfg, "testing", "num_peers",
 441                                              &num_peers))
 442     num_peers = DEFAULT_NUM_PEERS;
 443
 444   /* Set peers_left so we know when all peers started */
 445   peers_left = num_peers;
 446
 447   bob_daemon = NULL;
 448   dave_daemon = NULL;
 449   alice_daemon = NULL;
 450
 451   pg = GNUNET_TESTING_daemons_start (cfg, TEST_NUM_PEERS, TEST_NUM_CON,
 452                                 TEST_NUM_CON, TIMEOUT, NULL, NULL, &daemon_started, NULL,
 453                                 &daemon_connected, NULL, NULL);
 454
 455   /* Set up a task to end testing if peer start fails */
 456   die_task =
 457       GNUNET_SCHEDULER_add_delayed (TIMEOUT, &end_badly,
 458                                     "didn't start all daemons in reasonable amount of time!!!");
 459
 460   alice_online = 0;
 461   bob_online = 0;
 462   dave_online = 0;
 463   expected_connections = 2;
 464
 465   /* Start alice */
 466   //d1 = GNUNET_TESTING_daemon_start(cfg_alice, TIMEOUT, GNUNET_NO, NULL, NULL, 0,
 467   //                                 NULL, NULL, NULL, &alice_started, NULL);
 468
 469
 470
 471
 472 }
 473
 474 static int
 475 check ()
 476 {
 477   int ret;
 478
 479   /* Arguments for GNUNET_PROGRAM_run */
 480   char *const argv[] = { "test-gns-twopeer",    /* Name to give running binary */
 481     "-c",
 482     "test_gns_dht_default.conf",       /* Config file to use */
 483 #if VERBOSE
 484     "-L", "DEBUG",
 485 #endif
 486     NULL
 487   };
 488   struct GNUNET_GETOPT_CommandLineOption options[] = {
 489     GNUNET_GETOPT_OPTION_END
 490   };
 491   /* Run the run function as a new program */
 492   ret =
 493       GNUNET_PROGRAM_run ((sizeof (argv) / sizeof (char *)) - 1, argv,
 494                           "test-gns-threepeer", "nohelp", options, &run,
 495                           &ok);
 496   if (ret != GNUNET_OK)
 497   {
 498     GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
 499                 "`test-gns-threepeer': Failed with error code %d\n", ret);
 500   }
 501   return ok;
 502 }
 503
 504 int
 505 main (int argc, char *argv[])
 506 {
 507   int ret;
 508
 509   GNUNET_log_setup ("test-gns-threepeer",
 510 #if VERBOSE
 511                     "DEBUG",
 512 #else
 513                     "WARNING",
 514 #endif
 515                     NULL);
 516   ret = check ();
 517   /**
 518    * Need to remove base directory, subdirectories taken care
 519    * of by the testing framework.
 520    */
 521   return ret;
 522 }
 523
 524 /* end of test_gns_threepeer.c */