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                     GNUNET_NO,
 208                     NULL,
 209                     &on_lookup_result, TEST_DOMAIN);
 210   die_task =
 211     GNUNET_SCHEDULER_add_delayed (TIMEOUT, &end_badly, "from lookup");
 212 }
 213
 214
 215 /**
 216  * This function is called whenever a connection attempt is finished between two of
 217  * the started peers (started with GNUNET_TESTING_daemons_start).  The total
 218  * number of times this function is called should equal the number returned
 219  * from the GNUNET_TESTING_connect_topology call.
 220  *
 221  * The emsg variable is NULL on success (peers connected), and non-NULL on
 222  * failure (peers failed to connect).
 223  */
 224 void
 225 daemon_connected (void *cls, const struct GNUNET_PeerIdentity *first,
 226                    const struct GNUNET_PeerIdentity *second, uint32_t distance,
 227                    const struct GNUNET_CONFIGURATION_Handle *first_cfg,
 228                    const struct GNUNET_CONFIGURATION_Handle *second_cfg,
 229                    struct GNUNET_TESTING_Daemon *first_daemon,
 230                    struct GNUNET_TESTING_Daemon *second_daemon,
 231                    const char *emsg)
 232 {
 233   if (emsg == NULL)
 234   {
 235     total_connections++;
 236 #if VERBOSE
 237     GNUNET_log (GNUNET_ERROR_TYPE_INFO,
 238                 "connected peer %s to peer %s, distance %u\n",
 239                 first_daemon->shortname, second_daemon->shortname, distance);
 240 #endif
 241   }
 242 #if VERBOSE
 243   else
 244   {
 245     failed_connections++;
 246     GNUNET_log (GNUNET_ERROR_TYPE_INFO,
 247                 "Failed to connect peer %s to peer %s with error :\n%s\n",
 248                 first_daemon->shortname, second_daemon->shortname, emsg);
 249   }
 250 #endif
 251
 252   if (total_connections == expected_connections)
 253   {
 254 #if VERBOSE
 255     GNUNET_log (GNUNET_ERROR_TYPE_INFO,
 256                 "Created %d total connections, which is our target number!  Starting next phase of testing.\n",
 257                 total_connections);
 258 #endif
 259     GNUNET_SCHEDULER_cancel (die_task);
 260     die_task = GNUNET_SCHEDULER_NO_TASK;
 261     //die_task =
 262     //    GNUNET_SCHEDULER_add_delayed (TIMEOUT, &end_badly, "from connect");
 263
 264     //commence_testing();
 265
 266   }
 267   else if (total_connections + failed_connections == expected_connections)
 268   {
 269     GNUNET_SCHEDULER_cancel (die_task);
 270     die_task =
 271         GNUNET_SCHEDULER_add_now (&end_badly,
 272                                   "from topology_callback (too many failed connections)");
 273   }
 274 }
 275
 276 void
 277 all_connected(void *cls, const char *emsg)
 278 {
 279   GNUNET_log (GNUNET_ERROR_TYPE_INFO,
 280               "Created all connections!  Starting next phase of testing.\n");
 281   GNUNET_SCHEDULER_add_delayed (ZONE_PUT_WAIT_TIME, &commence_testing, NULL);
 282 }
 283
 284 void
 285 ns_create_cont(void *cls, int32_t s, const char *emsg)
 286 {
 287   GNUNET_NAMESTORE_disconnect((struct GNUNET_NAMESTORE_Handle *)cls, 0);
 288 }
 289
 290 static void
 291 daemon_started (void *cls, const struct GNUNET_PeerIdentity *id,
 292                 const struct GNUNET_CONFIGURATION_Handle *cfg,
 293                 struct GNUNET_TESTING_Daemon *d, const char *emsg)
 294 {
 295   struct GNUNET_NAMESTORE_Handle *ns;
 296   char* keyfile;
 297   struct GNUNET_CRYPTO_RsaPrivateKey *key;
 298   struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded pkey;
 299   struct in_addr *web;
 300   struct GNUNET_NAMESTORE_RecordData rd;
 301
 302   rd.flags = GNUNET_NAMESTORE_RF_AUTHORITY | GNUNET_NAMESTORE_RF_NONE;
 303   rd.expiration_time = UINT64_MAX;
 304
 305   if (NULL == dave_daemon)
 306   {
 307     if (GNUNET_OK != GNUNET_CONFIGURATION_get_value_filename (cfg, "gns",
 308                                                               "ZONEKEY",
 309                                                               &keyfile))
 310     {
 311       GNUNET_log(GNUNET_ERROR_TYPE_ERROR, "Failed to get key from cfg\n");
 312       ok = -1;
 313       return;
 314     }
 315     dave_daemon = d;
 316
 317     key = GNUNET_CRYPTO_rsa_key_create_from_file (keyfile);
 318
 319     GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "This is now dave\n");
 320     ns = GNUNET_NAMESTORE_connect(cfg);
 321
 322     GNUNET_CRYPTO_rsa_key_get_public (key, &pkey);
 323     GNUNET_CRYPTO_short_hash(&pkey, sizeof(pkey), &dave_hash);
 324
 325     web = GNUNET_malloc(sizeof(struct in_addr));
 326     GNUNET_assert(1 == inet_pton (AF_INET, TEST_IP, web));
 327     rd.data_size = sizeof(struct in_addr);
 328     rd.data = web;
 329     rd.record_type = GNUNET_GNS_RECORD_TYPE_A;
 330
 331     GNUNET_NAMESTORE_record_create (ns, key, "www", &rd, NULL, NULL);
 332
 333     rd.data_size = strlen(TEST_DAVE_PSEU);
 334     rd.data = TEST_DAVE_PSEU;
 335     rd.record_type = GNUNET_GNS_RECORD_PSEU;
 336
 337     GNUNET_NAMESTORE_record_create (ns, key, "+", &rd, ns_create_cont, ns);
 338
 339     GNUNET_CRYPTO_rsa_key_free(key);
 340     GNUNET_free(keyfile);
 341     GNUNET_free(web);
 342
 343     return;
 344   }
 345
 346
 347   if (NULL == bob_daemon)
 348   {
 349     if (GNUNET_OK != GNUNET_CONFIGURATION_get_value_filename (cfg, "gns",
 350                                                               "ZONEKEY",
 351                                                               &keyfile))
 352     {
 353       GNUNET_log(GNUNET_ERROR_TYPE_ERROR, "Failed to get key from cfg\n");
 354       ok = -1;
 355       return;
 356     }
 357     bob_daemon = d;
 358
 359     key = GNUNET_CRYPTO_rsa_key_create_from_file (keyfile);
 360
 361     GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "This is now bob\n");
 362     ns = GNUNET_NAMESTORE_connect(cfg);
 363
 364     GNUNET_CRYPTO_rsa_key_get_public (key, &pkey);
 365     GNUNET_CRYPTO_short_hash(&pkey, sizeof(pkey), &bob_hash);
 366
 367     rd.data_size = sizeof(struct GNUNET_CRYPTO_ShortHashCode);
 368     rd.data = &dave_hash;
 369     rd.record_type = GNUNET_GNS_RECORD_PKEY;
 370
 371     GNUNET_NAMESTORE_record_create (ns, key, "buddy", &rd, ns_create_cont, ns);
 372
 373     GNUNET_CRYPTO_rsa_key_free(key);
 374     GNUNET_free(keyfile);
 375
 376     return;
 377   }
 378
 379
 380
 381   if (NULL == alice_daemon)
 382   {
 383
 384     if (GNUNET_OK != GNUNET_CONFIGURATION_get_value_filename (cfg, "gns",
 385                                                               "ZONEKEY",
 386                                                               &keyfile))
 387     {
 388       GNUNET_log(GNUNET_ERROR_TYPE_ERROR, "Failed to get key from cfg\n");
 389       ok = -1;
 390       return;
 391     }
 392     alice_daemon = d;
 393     alice_cfg = cfg;
 394
 395     key = GNUNET_CRYPTO_rsa_key_create_from_file (keyfile);
 396
 397     GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "This is now alice\n");
 398     ns = GNUNET_NAMESTORE_connect(cfg);
 399
 400     rd.data_size = sizeof(struct GNUNET_CRYPTO_ShortHashCode);
 401     rd.data = &bob_hash;
 402     rd.record_type = GNUNET_GNS_RECORD_PKEY;
 403
 404     GNUNET_NAMESTORE_record_create (ns, key, "bob", &rd, ns_create_cont, ns);
 405
 406     GNUNET_CRYPTO_rsa_key_free(key);
 407     GNUNET_free(keyfile);
 408
 409     GNUNET_TESTING_connect_topology (pg, GNUNET_TESTING_TOPOLOGY_CLIQUE,
 410                                      GNUNET_TESTING_TOPOLOGY_OPTION_ALL,
 411                                      0,
 412                                      TIMEOUT,
 413                                      3,
 414                                      &all_connected, NULL);
 415     return;
 416
 417   }
 418
 419
 420
 421   GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "This is a random guy\n");
 422 }
 423
 424 static void
 425 run (void *cls, char *const *args, const char *cfgfile,
 426      const struct GNUNET_CONFIGURATION_Handle *cfg)
 427 {
 428
 429   /* Get path from configuration file */
 430   if (GNUNET_YES !=
 431       GNUNET_CONFIGURATION_get_value_string (cfg, "paths", "servicehome",
 432                                              &test_directory))
 433   {
 434     ok = 404;
 435     return;
 436   }
 437
 438   GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "starting\n");
 439
 440   /* Get number of peers to start from configuration (should be two) */
 441   if (GNUNET_SYSERR ==
 442       GNUNET_CONFIGURATION_get_value_number (cfg, "testing", "num_peers",
 443                                              &num_peers))
 444     num_peers = DEFAULT_NUM_PEERS;
 445
 446   /* Set peers_left so we know when all peers started */
 447   peers_left = num_peers;
 448
 449   bob_daemon = NULL;
 450   dave_daemon = NULL;
 451   alice_daemon = NULL;
 452
 453   pg = GNUNET_TESTING_daemons_start (cfg, TEST_NUM_PEERS, TEST_NUM_CON,
 454                                 TEST_NUM_CON, TIMEOUT, NULL, NULL, &daemon_started, NULL,
 455                                 &daemon_connected, NULL, NULL);
 456
 457   /* Set up a task to end testing if peer start fails */
 458   die_task =
 459       GNUNET_SCHEDULER_add_delayed (TIMEOUT, &end_badly,
 460                                     "didn't start all daemons in reasonable amount of time!!!");
 461
 462   alice_online = 0;
 463   bob_online = 0;
 464   dave_online = 0;
 465   expected_connections = 2;
 466
 467   /* Start alice */
 468   //d1 = GNUNET_TESTING_daemon_start(cfg_alice, TIMEOUT, GNUNET_NO, NULL, NULL, 0,
 469   //                                 NULL, NULL, NULL, &alice_started, NULL);
 470
 471
 472
 473
 474 }
 475
 476 static int
 477 check ()
 478 {
 479   int ret;
 480
 481   /* Arguments for GNUNET_PROGRAM_run */
 482   char *const argv[] = { "test-gns-twopeer",    /* Name to give running binary */
 483     "-c",
 484     "test_gns_dht_default.conf",       /* Config file to use */
 485 #if VERBOSE
 486     "-L", "DEBUG",
 487 #endif
 488     NULL
 489   };
 490   struct GNUNET_GETOPT_CommandLineOption options[] = {
 491     GNUNET_GETOPT_OPTION_END
 492   };
 493   /* Run the run function as a new program */
 494   ret =
 495       GNUNET_PROGRAM_run ((sizeof (argv) / sizeof (char *)) - 1, argv,
 496                           "test-gns-threepeer", "nohelp", options, &run,
 497                           &ok);
 498   if (ret != GNUNET_OK)
 499   {
 500     GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
 501                 "`test-gns-threepeer': Failed with error code %d\n", ret);
 502   }
 503   return ok;
 504 }
 505
 506 int
 507 main (int argc, char *argv[])
 508 {
 509   int ret;
 510
 511   GNUNET_log_setup ("test-gns-threepeer",
 512 #if VERBOSE
 513                     "DEBUG",
 514 #else
 515                     "WARNING",
 516 #endif
 517                     NULL);
 518   ret = check ();
 519   /**
 520    * Need to remove base directory, subdirectories taken care
 521    * of by the testing framework.
 522    */
 523   return ret;
 524 }
 525
 526 /* end of test_gns_threepeer.c */