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
 165   if (rd_count == 0)
 166   {
 167     GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
 168                 "Lookup failed!\n");
 169     ok = 2;
 170   }
 171   else
 172   {
 173     ok = 1;
 174     GNUNET_log (GNUNET_ERROR_TYPE_INFO, "name: %s\n", (char*)cls);
 175     for (i=0; i<rd_count; i++)
 176     {
 177       string_val = GNUNET_NAMESTORE_value_to_string(rd[i].record_type,
 178                                                     rd[i].data,
 179                                                     rd[i].data_size);
 180       if (0 == strcmp(string_val, TEST_IP))
 181       {
 182         GNUNET_log (GNUNET_ERROR_TYPE_INFO,
 183                     "%s correctly resolved to %s!\n", TEST_DOMAIN, string_val);
 184         ok = 0;
 185       }
 186     }
 187   }
 188   GNUNET_GNS_disconnect(gh);
 189   GNUNET_SCHEDULER_cancel(die_task);
 190   die_task = GNUNET_SCHEDULER_NO_TASK;
 191   GNUNET_TESTING_daemons_stop (pg, TIMEOUT, &finish_testing, NULL);
 192   GNUNET_log (GNUNET_ERROR_TYPE_INFO, "Shutting down!\n");
 193
 194 }
 195
 196 static void
 197 commence_testing(void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
 198 {
 199
 200   gh = GNUNET_GNS_connect(alice_cfg);
 201
 202   GNUNET_GNS_lookup(gh, TEST_DOMAIN, GNUNET_GNS_RECORD_A,
 203                     GNUNET_NO,
 204                     NULL,
 205                     &on_lookup_result, TEST_DOMAIN);
 206   die_task =
 207     GNUNET_SCHEDULER_add_delayed (TIMEOUT, &end_badly, "from lookup");
 208 }
 209
 210
 211 /**
 212  * This function is called whenever a connection attempt is finished between two of
 213  * the started peers (started with GNUNET_TESTING_daemons_start).  The total
 214  * number of times this function is called should equal the number returned
 215  * from the GNUNET_TESTING_connect_topology call.
 216  *
 217  * The emsg variable is NULL on success (peers connected), and non-NULL on
 218  * failure (peers failed to connect).
 219  */
 220 void
 221 daemon_connected (void *cls, const struct GNUNET_PeerIdentity *first,
 222                    const struct GNUNET_PeerIdentity *second, uint32_t distance,
 223                    const struct GNUNET_CONFIGURATION_Handle *first_cfg,
 224                    const struct GNUNET_CONFIGURATION_Handle *second_cfg,
 225                    struct GNUNET_TESTING_Daemon *first_daemon,
 226                    struct GNUNET_TESTING_Daemon *second_daemon,
 227                    const char *emsg)
 228 {
 229   if (emsg == NULL)
 230   {
 231     total_connections++;
 232 #if VERBOSE
 233     GNUNET_log (GNUNET_ERROR_TYPE_INFO,
 234                 "connected peer %s to peer %s, distance %u\n",
 235                 first_daemon->shortname, second_daemon->shortname, distance);
 236 #endif
 237   }
 238 #if VERBOSE
 239   else
 240   {
 241     failed_connections++;
 242     GNUNET_log (GNUNET_ERROR_TYPE_INFO,
 243                 "Failed to connect peer %s to peer %s with error :\n%s\n",
 244                 first_daemon->shortname, second_daemon->shortname, emsg);
 245   }
 246 #endif
 247
 248   if (total_connections == expected_connections)
 249   {
 250 #if VERBOSE
 251     GNUNET_log (GNUNET_ERROR_TYPE_INFO,
 252                 "Created %d total connections, which is our target number!  Starting next phase of testing.\n",
 253                 total_connections);
 254 #endif
 255     GNUNET_SCHEDULER_cancel (die_task);
 256     die_task = GNUNET_SCHEDULER_NO_TASK;
 257     //die_task =
 258     //    GNUNET_SCHEDULER_add_delayed (TIMEOUT, &end_badly, "from connect");
 259
 260     //commence_testing();
 261
 262   }
 263   else if (total_connections + failed_connections == expected_connections)
 264   {
 265     GNUNET_SCHEDULER_cancel (die_task);
 266     die_task =
 267         GNUNET_SCHEDULER_add_now (&end_badly,
 268                                   "from topology_callback (too many failed connections)");
 269   }
 270 }
 271
 272 void
 273 all_connected(void *cls, const char *emsg)
 274 {
 275   GNUNET_log (GNUNET_ERROR_TYPE_INFO,
 276               "Created all connections!  Starting next phase of testing.\n");
 277   GNUNET_SCHEDULER_add_delayed (ZONE_PUT_WAIT_TIME, &commence_testing, NULL);
 278 }
 279
 280 static void
 281 disconnect_ns (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
 282 {
 283   GNUNET_NAMESTORE_disconnect (cls);
 284 }
 285
 286 static void
 287 cont_ns (void* cls, int32_t s, const char* emsg)
 288 {
 289   GNUNET_SCHEDULER_add_now (&disconnect_ns, cls);
 290 }
 291
 292 static void
 293 daemon_started (void *cls, const struct GNUNET_PeerIdentity *id,
 294                 const struct GNUNET_CONFIGURATION_Handle *cfg,
 295                 struct GNUNET_TESTING_Daemon *d, const char *emsg)
 296 {
 297   struct GNUNET_NAMESTORE_Handle *ns;
 298   char* keyfile;
 299   struct GNUNET_CRYPTO_RsaPrivateKey *key;
 300   struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded pkey;
 301   struct in_addr *web;
 302   struct GNUNET_NAMESTORE_RecordData rd;
 303
 304   rd.flags = GNUNET_NAMESTORE_RF_AUTHORITY | GNUNET_NAMESTORE_RF_NONE;
 305   rd.expiration_time = UINT64_MAX;
 306
 307   if (NULL == dave_daemon)
 308   {
 309     if (GNUNET_OK != GNUNET_CONFIGURATION_get_value_filename (cfg, "gns",
 310                                                               "ZONEKEY",
 311                                                               &keyfile))
 312     {
 313       GNUNET_log(GNUNET_ERROR_TYPE_ERROR, "Failed to get key from cfg\n");
 314       ok = -1;
 315       return;
 316     }
 317     dave_daemon = d;
 318
 319     key = GNUNET_CRYPTO_rsa_key_create_from_file (keyfile);
 320
 321     GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "This is now dave\n");
 322     ns = GNUNET_NAMESTORE_connect(cfg);
 323
 324     GNUNET_CRYPTO_rsa_key_get_public (key, &pkey);
 325     GNUNET_CRYPTO_short_hash(&pkey, sizeof(pkey), &dave_hash);
 326
 327     web = GNUNET_malloc(sizeof(struct in_addr));
 328     GNUNET_assert(1 == inet_pton (AF_INET, TEST_IP, web));
 329     rd.data_size = sizeof(struct in_addr);
 330     rd.data = web;
 331     rd.record_type = GNUNET_GNS_RECORD_A;
 332     rd.flags = GNUNET_NAMESTORE_RF_AUTHORITY;
 333
 334     GNUNET_NAMESTORE_record_create (ns, key, "www", &rd, NULL, NULL);
 335
 336     rd.data_size = strlen(TEST_DAVE_PSEU);
 337     rd.data = TEST_DAVE_PSEU;
 338     rd.record_type = GNUNET_GNS_RECORD_PSEU;
 339
 340     GNUNET_NAMESTORE_record_create (ns, key, "+", &rd, &cont_ns, ns);
 341
 342     GNUNET_CRYPTO_rsa_key_free(key);
 343     GNUNET_free(keyfile);
 344     GNUNET_free(web);
 345
 346     return;
 347   }
 348
 349
 350   if (NULL == bob_daemon)
 351   {
 352     if (GNUNET_OK != GNUNET_CONFIGURATION_get_value_filename (cfg, "gns",
 353                                                               "ZONEKEY",
 354                                                               &keyfile))
 355     {
 356       GNUNET_log(GNUNET_ERROR_TYPE_ERROR, "Failed to get key from cfg\n");
 357       ok = -1;
 358       return;
 359     }
 360     bob_daemon = d;
 361
 362     key = GNUNET_CRYPTO_rsa_key_create_from_file (keyfile);
 363
 364     GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "This is now bob\n");
 365     ns = GNUNET_NAMESTORE_connect(cfg);
 366
 367     GNUNET_CRYPTO_rsa_key_get_public (key, &pkey);
 368     GNUNET_CRYPTO_short_hash(&pkey, sizeof(pkey), &bob_hash);
 369
 370     rd.data_size = sizeof(struct GNUNET_CRYPTO_ShortHashCode);
 371     rd.data = &dave_hash;
 372     rd.record_type = GNUNET_GNS_RECORD_PKEY;
 373     rd.flags = GNUNET_NAMESTORE_RF_AUTHORITY;
 374
 375     GNUNET_NAMESTORE_record_create (ns, key, "buddy", &rd, &cont_ns, ns);
 376
 377     GNUNET_CRYPTO_rsa_key_free(key);
 378     GNUNET_free(keyfile);
 379
 380     return;
 381   }
 382
 383
 384
 385   if (NULL == alice_daemon)
 386   {
 387
 388     if (GNUNET_OK != GNUNET_CONFIGURATION_get_value_filename (cfg, "gns",
 389                                                               "ZONEKEY",
 390                                                               &keyfile))
 391     {
 392       GNUNET_log(GNUNET_ERROR_TYPE_ERROR, "Failed to get key from cfg\n");
 393       ok = -1;
 394       return;
 395     }
 396     alice_daemon = d;
 397     alice_cfg = cfg;
 398
 399     key = GNUNET_CRYPTO_rsa_key_create_from_file (keyfile);
 400
 401     GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "This is now alice\n");
 402     ns = GNUNET_NAMESTORE_connect(cfg);
 403
 404     rd.data_size = sizeof(struct GNUNET_CRYPTO_ShortHashCode);
 405     rd.data = &bob_hash;
 406     rd.record_type = GNUNET_GNS_RECORD_PKEY;
 407     rd.flags = GNUNET_NAMESTORE_RF_AUTHORITY;
 408
 409     GNUNET_NAMESTORE_record_create (ns, key, "bob", &rd, &cont_ns, ns);
 410
 411     GNUNET_CRYPTO_rsa_key_free(key);
 412     GNUNET_free(keyfile);
 413
 414     GNUNET_TESTING_connect_topology (pg, GNUNET_TESTING_TOPOLOGY_CLIQUE,
 415                                      GNUNET_TESTING_TOPOLOGY_OPTION_ALL,
 416                                      0,
 417                                      TIMEOUT,
 418                                      3,
 419                                      &all_connected, NULL);
 420     return;
 421
 422   }
 423
 424
 425
 426   GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "This is a random guy\n");
 427 }
 428
 429 static void
 430 run (void *cls, char *const *args, const char *cfgfile,
 431      const struct GNUNET_CONFIGURATION_Handle *cfg)
 432 {
 433
 434   /* Get path from configuration file */
 435   if (GNUNET_YES !=
 436       GNUNET_CONFIGURATION_get_value_string (cfg, "paths", "servicehome",
 437                                              &test_directory))
 438   {
 439     ok = 404;
 440     return;
 441   }
 442
 443   GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "starting\n");
 444
 445   /* Get number of peers to start from configuration (should be two) */
 446   if (GNUNET_SYSERR ==
 447       GNUNET_CONFIGURATION_get_value_number (cfg, "testing", "num_peers",
 448                                              &num_peers))
 449     num_peers = DEFAULT_NUM_PEERS;
 450
 451   /* Set peers_left so we know when all peers started */
 452   peers_left = num_peers;
 453
 454   bob_daemon = NULL;
 455   dave_daemon = NULL;
 456   alice_daemon = NULL;
 457
 458   pg = GNUNET_TESTING_daemons_start (cfg, TEST_NUM_PEERS, TEST_NUM_CON,
 459                                 TEST_NUM_CON, TIMEOUT, NULL, NULL, &daemon_started, NULL,
 460                                 &daemon_connected, NULL, NULL);
 461
 462   /* Set up a task to end testing if peer start fails */
 463   die_task =
 464       GNUNET_SCHEDULER_add_delayed (TIMEOUT, &end_badly,
 465                                     "didn't start all daemons in reasonable amount of time!!!");
 466
 467   alice_online = 0;
 468   bob_online = 0;
 469   dave_online = 0;
 470   expected_connections = 2;
 471
 472   /* Start alice */
 473   //d1 = GNUNET_TESTING_daemon_start(cfg_alice, TIMEOUT, GNUNET_NO, NULL, NULL, 0,
 474   //                                 NULL, NULL, NULL, &alice_started, NULL);
 475
 476
 477
 478
 479 }
 480
 481 static int
 482 check ()
 483 {
 484   int ret;
 485
 486   /* Arguments for GNUNET_PROGRAM_run */
 487   char *const argv[] = { "test-gns-twopeer",    /* Name to give running binary */
 488     "-c",
 489     "test_gns_dht_default.conf",       /* Config file to use */
 490 #if VERBOSE
 491     "-L", "DEBUG",
 492 #endif
 493     NULL
 494   };
 495   struct GNUNET_GETOPT_CommandLineOption options[] = {
 496     GNUNET_GETOPT_OPTION_END
 497   };
 498   /* Run the run function as a new program */
 499   ret =
 500       GNUNET_PROGRAM_run ((sizeof (argv) / sizeof (char *)) - 1, argv,
 501                           "test-gns-threepeer", "nohelp", options, &run,
 502                           &ok);
 503   if (ret != GNUNET_OK)
 504   {
 505     GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
 506                 "`test-gns-threepeer': Failed with error code %d\n", ret);
 507   }
 508   return ok;
 509 }
 510
 511 int
 512 main (int argc, char *argv[])
 513 {
 514   int ret;
 515
 516   GNUNET_log_setup ("test-gns-threepeer",
 517 #if VERBOSE
 518                     "DEBUG",
 519 #else
 520                     "WARNING",
 521 #endif
 522                     NULL);
 523   ret = check ();
 524   /**
 525    * Need to remove base directory, subdirectories taken care
 526    * of by the testing framework.
 527    */
 528   return ret;
 529 }
 530
 531 /* end of test_gns_threepeer.c */