src/gns/test_gns_dht_shorten.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_twopeer.c
  22  * @brief base testcase for testing DHT service with
  23  *        two running peers.
  24  *
  25  * This testcase starts peers using the GNUNET_TESTING_daemons_start
  26  * function call.  On peer start, connects to the peers DHT service
  27  * by calling GNUNET_DHT_connected.  Once notified about all peers
  28  * being started (by the peers_started_callback function), calls
  29  * GNUNET_TESTING_connect_topology, which connects the peers in a
  30  * "straight line" topology.  On notification that all peers have
  31  * been properly connected, calls the do_get function which initiates
  32  * a GNUNET_DHT_get from the *second* peer. Once the GNUNET_DHT_get
  33  * function starts, runs the do_put function to insert data at the first peer.
  34  *   If the GET is successful, schedules finish_testing
  35  * to stop the test and shut down peers.  If GET is unsuccessful
  36  * after GET_TIMEOUT seconds, prints an error message and shuts down
  37  * the peers.
  38  */
  39 #include "platform.h"
  40 #include "gnunet_testing_lib.h"
  41 #include "gnunet_core_service.h"
  42 #include "block_gns.h"
  43 #include "gnunet_signatures.h"
  44 #include "gnunet_namestore_service.h"
  45 #include "../namestore/namestore.h"
  46 #include "gnunet_dnsparser_lib.h"
  47 #include "gnunet_dht_service.h"
  48 #include "gnunet_gns_service.h"
  49
  50 /* DEFINES */
  51 #define VERBOSE GNUNET_YES
  52
  53 /* Timeout for entire testcase */
  54 #define TIMEOUT GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 10)
  55
  56 /* If number of peers not in config file, use this number */
  57 #define DEFAULT_NUM_PEERS 2
  58
  59 /* test records to resolve */
  60 #define TEST_DOMAIN "www.alice.bob.gnunet"
  61 #define TEST_IP "127.0.0.1"
  62 #define TEST_RECORD_NAME "www"
  63
  64 #define TEST_AUTHORITY_NAME "bob"
  65 #define TEST_AUTHORITY_ALICE "alice"
  66 #define TEST_ALICE_PSEU "carol"
  67 #define TEST_EXPECTED_RESULT "www.carol.gnunet"
  68
  69 #define DHT_OPERATION_TIMEOUT GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 1)
  70
  71 /* Globals */
  72
  73 /**
  74  * Directory to store temp data in, defined in config file
  75  */
  76 static char *test_directory;
  77
  78 struct GNUNET_TESTING_Daemon *d1;
  79
  80
  81 /* Task handle to use to schedule test failure */
  82 GNUNET_SCHEDULER_TaskIdentifier die_task;
  83
  84 /* Global return value (0 for success, anything else for failure) */
  85 static int ok;
  86
  87 static struct GNUNET_NAMESTORE_Handle *namestore_handle;
  88
  89 static struct GNUNET_GNS_Handle *gns_handle;
  90
  91 static struct GNUNET_DHT_Handle *dht_handle;
  92
  93 const struct GNUNET_CONFIGURATION_Handle *cfg;
  94
  95 struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded alice_pkey;
  96 struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded bob_pkey;
  97 struct GNUNET_CRYPTO_RsaPrivateKey *alice_key;
  98 struct GNUNET_CRYPTO_RsaPrivateKey *bob_key;
  99
 100 /**
 101  * Check whether peers successfully shut down.
 102  */
 103 void
 104 shutdown_callback (void *cls, const char *emsg)
 105 {
 106   if (emsg != NULL)
 107   {
 108     GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Error on shutdown! ret=%d\n", ok);
 109     if (ok == 0)
 110       ok = 2;
 111   }
 112
 113   GNUNET_log (GNUNET_ERROR_TYPE_INFO, "done(ret=%d)!\n", ok);
 114 }
 115
 116
 117 /**
 118  * Called when gns shorten finishes
 119  */
 120 static void
 121 process_shorten_result(void* cls, const char* sname)
 122 {
 123   GNUNET_GNS_disconnect(gns_handle);
 124
 125   ok = 0;
 126
 127   if (sname == NULL)
 128   {
 129     GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
 130                 "shorten test failed!\n");
 131     ok = 1;
 132   }
 133   else
 134   {
 135     GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
 136                 "%s shortened to %s\n", (char*)cls, sname);
 137     if (0 != strcmp(sname, TEST_EXPECTED_RESULT))
 138     {
 139       GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
 140                   "shorten test failed! (wanted: %s got: %s\n",
 141                   (char*)cls, sname);
 142       ok = 1;
 143     }
 144
 145     GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "shorten test succeeded!\n");
 146
 147   }
 148
 149   GNUNET_log (GNUNET_ERROR_TYPE_INFO, "Shutting down peer1!\n");
 150   GNUNET_TESTING_daemon_stop (d1, TIMEOUT, &shutdown_callback, NULL,
 151                               GNUNET_YES, GNUNET_NO);
 152 }
 153
 154 /**
 155  * Function scheduled to be run on the successful start of services
 156  * tries to look up the dns record for TEST_DOMAIN
 157  */
 158 static void
 159 commence_testing (void* cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
 160 {
 161   GNUNET_NAMESTORE_disconnect(namestore_handle, GNUNET_YES);
 162
 163   gns_handle = GNUNET_GNS_connect(cfg);
 164
 165   if (NULL == gns_handle)
 166   {
 167     GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
 168                 "Failed to connect to GNS!\n");
 169     ok = 1;
 170   }
 171
 172   GNUNET_GNS_shorten(gns_handle, TEST_DOMAIN, &process_shorten_result,
 173                      TEST_DOMAIN);
 174 }
 175
 176 /**
 177  * Continuation for the GNUNET_DHT_get_stop call, so that we don't shut
 178  * down the peers without freeing memory associated with GET request.
 179  */
 180 static void
 181 end_badly_cont (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
 182 {
 183
 184   if (d1 != NULL)
 185     GNUNET_TESTING_daemon_stop (d1, TIMEOUT, &shutdown_callback, NULL,
 186                                 GNUNET_YES, GNUNET_NO);
 187   GNUNET_SCHEDULER_cancel (die_task);
 188 }
 189
 190 /**
 191  * Check if the get_handle is being used, if so stop the request.  Either
 192  * way, schedule the end_badly_cont function which actually shuts down the
 193  * test.
 194  */
 195 static void
 196 end_badly (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
 197 {
 198   GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Failing test with error: `%s'!\n",
 199               (char *) cls);
 200   GNUNET_SCHEDULER_add_now (&end_badly_cont, NULL);
 201   ok = 1;
 202 }
 203
 204
 205 static void
 206 put_www_dht(void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
 207 {
 208   struct GNSNameRecordBlock *nrb;
 209   GNUNET_HashCode name_hash;
 210   GNUNET_HashCode xor_hash;
 211   GNUNET_HashCode zone_hash;
 212   uint32_t rd_payload_length;
 213   char* nrb_data = NULL;
 214   struct GNUNET_CRYPTO_RsaSignature *sig;
 215   struct GNUNET_NAMESTORE_RecordData rd;
 216   char* ip = TEST_IP;
 217   struct in_addr *web = GNUNET_malloc(sizeof(struct in_addr));
 218
 219   rd.expiration = GNUNET_TIME_absolute_get_forever ();
 220   GNUNET_assert(1 == inet_pton (AF_INET, ip, web));
 221   rd.data_size = sizeof(struct in_addr);
 222   rd.data = web;
 223   rd.record_type = GNUNET_DNSPARSER_TYPE_A;
 224
 225   sig = GNUNET_NAMESTORE_create_signature(alice_key,
 226                                           GNUNET_TIME_absolute_get_forever(),
 227                                           TEST_RECORD_NAME,
 228                                           &rd, 1);
 229   rd_payload_length = GNUNET_NAMESTORE_records_get_size (1, &rd);
 230   nrb = GNUNET_malloc(rd_payload_length + strlen(TEST_RECORD_NAME) + 1
 231                       + sizeof(struct GNSNameRecordBlock));
 232   nrb->signature = *sig;
 233   nrb->public_key = alice_pkey;
 234   nrb->rd_count = htonl(1);
 235   memset(&nrb[1], 0, strlen(TEST_RECORD_NAME) + 1);
 236   memcpy(&nrb[1], TEST_RECORD_NAME, strlen(TEST_RECORD_NAME));
 237   nrb_data = (char*)&nrb[1];
 238   nrb_data += strlen(TEST_RECORD_NAME) + 1;
 239
 240   if (-1 == GNUNET_NAMESTORE_records_serialize (1,
 241                                                 &rd,
 242                                                 rd_payload_length,
 243                                                 nrb_data))
 244   {
 245     GNUNET_log(GNUNET_ERROR_TYPE_ERROR, "Record serialization failed!\n");
 246     ok = 3;
 247     GNUNET_free (nrb);
 248     return;
 249   }
 250   GNUNET_CRYPTO_hash(TEST_RECORD_NAME, strlen(TEST_RECORD_NAME), &name_hash);
 251   GNUNET_CRYPTO_hash(&alice_pkey,
 252                      sizeof(struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded),
 253                      &zone_hash);
 254   GNUNET_CRYPTO_hash_xor(&zone_hash, &name_hash, &xor_hash);
 255
 256   rd_payload_length += sizeof(struct GNSNameRecordBlock) +
 257     strlen(TEST_RECORD_NAME) + 1;
 258   GNUNET_DHT_put (dht_handle, &xor_hash,
 259                   0,
 260                   GNUNET_DHT_RO_NONE,
 261                   GNUNET_BLOCK_TYPE_GNS_NAMERECORD,
 262                   rd_payload_length,
 263                   (char*)nrb,
 264                   rd.expiration,
 265                   DHT_OPERATION_TIMEOUT,
 266                   NULL,
 267                   NULL);
 268   GNUNET_free (nrb);
 269   GNUNET_SCHEDULER_add_delayed(TIMEOUT, &commence_testing, NULL);
 270 }
 271
 272
 273 static void
 274 put_alice_pseu_dht(void *cls, int32_t success, const char *emsg)
 275 {
 276   struct GNSNameRecordBlock *nrb;
 277   GNUNET_HashCode name_hash;
 278   GNUNET_HashCode xor_hash;
 279   GNUNET_HashCode zone_hash;
 280   uint32_t rd_payload_length;
 281   char* nrb_data = NULL;
 282   struct GNUNET_CRYPTO_RsaSignature *sig;
 283   struct GNUNET_NAMESTORE_RecordData rd;
 284
 285   rd.expiration = GNUNET_TIME_absolute_get_forever ();
 286   rd.data_size = strlen(TEST_ALICE_PSEU);
 287   rd.data = TEST_ALICE_PSEU;
 288   rd.record_type = GNUNET_GNS_RECORD_PSEU;
 289
 290   sig = GNUNET_NAMESTORE_create_signature(alice_key,
 291                                           GNUNET_TIME_absolute_get_forever(),
 292                                           "+", //empty name for pseu
 293                                           &rd, 1);
 294   rd_payload_length = GNUNET_NAMESTORE_records_get_size (1, &rd);
 295   nrb = GNUNET_malloc(rd_payload_length + strlen("") + 1
 296                       + sizeof(struct GNSNameRecordBlock));
 297   nrb->signature = *sig;
 298   nrb->public_key = alice_pkey;
 299   nrb->rd_count = htonl(1);
 300   memset(&nrb[1], 0, strlen("+") + 1);
 301   memcpy(&nrb[1], "+", strlen("+"));
 302   nrb_data = (char*)&nrb[1];
 303   nrb_data += strlen("+") + 1;
 304
 305   if (-1 == GNUNET_NAMESTORE_records_serialize (1,
 306                                                 &rd,
 307                                                 rd_payload_length,
 308                                                 nrb_data))
 309   {
 310     GNUNET_log(GNUNET_ERROR_TYPE_ERROR, "Record serialization failed!\n");
 311     ok = 3;
 312     GNUNET_free (nrb);
 313     return;
 314   }
 315   GNUNET_CRYPTO_hash("+", strlen("+"), &name_hash);
 316   GNUNET_CRYPTO_hash(&alice_pkey,
 317                      sizeof(struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded),
 318                      &zone_hash);
 319   GNUNET_CRYPTO_hash_xor(&zone_hash, &name_hash, &xor_hash);
 320
 321   rd_payload_length += sizeof(struct GNSNameRecordBlock) +
 322     strlen("+") + 1;
 323   GNUNET_DHT_put (dht_handle, &xor_hash,
 324                   0,
 325                   GNUNET_DHT_RO_NONE,
 326                   GNUNET_BLOCK_TYPE_GNS_NAMERECORD,
 327                   rd_payload_length,
 328                   (char*)nrb,
 329                   rd.expiration,
 330                   DHT_OPERATION_TIMEOUT,
 331                   NULL,
 332                   NULL);
 333   GNUNET_free (nrb);
 334   GNUNET_SCHEDULER_add_delayed(TIMEOUT, &put_www_dht, NULL);
 335 }
 336
 337 static void
 338 do_shorten(void *cls, const struct GNUNET_PeerIdentity *id,
 339           const struct GNUNET_CONFIGURATION_Handle *cfg,
 340           struct GNUNET_TESTING_Daemon *d, const char *emsg)
 341 {
 342
 343   char* my_keyfile;
 344   struct GNUNET_CRYPTO_RsaPrivateKey *my_key;
 345   GNUNET_HashCode bob_hash;
 346   GNUNET_HashCode alice_hash;
 347   struct GNUNET_CRYPTO_RsaSignature *sig;
 348
 349
 350   GNUNET_SCHEDULER_cancel (die_task);
 351
 352   /* put records into namestore */
 353   namestore_handle = GNUNET_NAMESTORE_connect(cfg);
 354   if (NULL == namestore_handle)
 355   {
 356     GNUNET_log(GNUNET_ERROR_TYPE_ERROR, "Failed to connect to namestore\n");
 357     ok = -1;
 358     return;
 359   }
 360
 361   /* dht */
 362   dht_handle = GNUNET_DHT_connect(cfg, 1);
 363   if (NULL == dht_handle)
 364   {
 365     GNUNET_log(GNUNET_ERROR_TYPE_ERROR, "Failed to connect to dht\n");
 366     ok = -1;
 367     return;
 368   }
 369
 370   if (GNUNET_OK != GNUNET_CONFIGURATION_get_value_string (cfg, "gns",
 371                                                           "ZONEKEY",
 372                                                           &my_keyfile))
 373   {
 374     GNUNET_log(GNUNET_ERROR_TYPE_ERROR, "Failed to get key from cfg\n");
 375     ok = -1;
 376     return;
 377   }
 378
 379   my_key = GNUNET_CRYPTO_rsa_key_create_from_file (my_keyfile);
 380   alice_key = GNUNET_CRYPTO_rsa_key_create ();
 381   bob_key = GNUNET_CRYPTO_rsa_key_create ();
 382
 383   GNUNET_CRYPTO_rsa_key_get_public (alice_key, &alice_pkey);
 384   GNUNET_CRYPTO_rsa_key_get_public (bob_key, &bob_pkey);
 385   GNUNET_CRYPTO_hash(&bob_pkey, sizeof(bob_pkey), &bob_hash);
 386   GNUNET_CRYPTO_hash(&alice_pkey, sizeof(alice_pkey), &alice_hash);
 387
 388   struct GNUNET_NAMESTORE_RecordData rd;
 389   rd.expiration = GNUNET_TIME_absolute_get_forever ();
 390   rd.data_size = sizeof(GNUNET_HashCode);
 391   rd.data = &bob_hash;
 392   rd.record_type = GNUNET_GNS_RECORD_PKEY;
 393
 394   GNUNET_NAMESTORE_record_create (namestore_handle,
 395                                   my_key,
 396                                   TEST_AUTHORITY_NAME,
 397                                   &rd,
 398                                   NULL,
 399                                   NULL);
 400
 401   rd.data = &alice_hash;
 402
 403   sig = GNUNET_NAMESTORE_create_signature(bob_key,
 404                                           GNUNET_TIME_absolute_get_forever(),
 405                                           TEST_AUTHORITY_ALICE,
 406                                           &rd,
 407                                           1);
 408
 409   GNUNET_NAMESTORE_record_put (namestore_handle,
 410                                &bob_pkey,
 411                                TEST_AUTHORITY_ALICE,
 412                                GNUNET_TIME_absolute_get_forever(),
 413                                1,
 414                                &rd,
 415                                sig,
 416                                &put_alice_pseu_dht,
 417                                NULL);
 418
 419
 420
 421
 422
 423 }
 424
 425 static void
 426 run (void *cls, char *const *args, const char *cfgfile,
 427      const struct GNUNET_CONFIGURATION_Handle *c)
 428 {
 429   cfg = c;
 430    /* Get path from configuration file */
 431   if (GNUNET_YES !=
 432       GNUNET_CONFIGURATION_get_value_string (cfg, "paths", "servicehome",
 433                                              &test_directory))
 434   {
 435     ok = 404;
 436     return;
 437   }
 438
 439
 440   /* Set up a task to end testing if peer start fails */
 441   die_task =
 442       GNUNET_SCHEDULER_add_delayed (TIMEOUT, &end_badly,
 443                                     "didn't start all daemons in reasonable amount of time!!!");
 444
 445   /* Start alice */
 446   d1 = GNUNET_TESTING_daemon_start(cfg, TIMEOUT, GNUNET_NO, NULL, NULL, 0,
 447                                    NULL, NULL, NULL, &do_shorten, NULL);
 448 }
 449
 450 static int
 451 check ()
 452 {
 453   int ret;
 454
 455   /* Arguments for GNUNET_PROGRAM_run */
 456   char *const argv[] = { "test-gns-dht-delegated-lookup", /* Name to give running binary */
 457     "-c",
 458     "test_gns_simple_lookup.conf",       /* Config file to use */
 459 #if VERBOSE
 460     "-L", "DEBUG",
 461 #endif
 462     NULL
 463   };
 464   struct GNUNET_GETOPT_CommandLineOption options[] = {
 465     GNUNET_GETOPT_OPTION_END
 466   };
 467   /* Run the run function as a new program */
 468   ret =
 469       GNUNET_PROGRAM_run ((sizeof (argv) / sizeof (char *)) - 1, argv,
 470                           "test-gns-dht-delegated-lookup", "nohelp", options, &run,
 471                           &ok);
 472   if (ret != GNUNET_OK)
 473   {
 474     GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
 475                 "`test-gns-dht-delegated-lookup': Failed with error code %d\n", ret);
 476   }
 477   return ok;
 478 }
 479
 480 int
 481 main (int argc, char *argv[])
 482 {
 483   int ret;
 484
 485   GNUNET_log_setup ("test-gns-simple-lookup",
 486 #if VERBOSE
 487                     "DEBUG",
 488 #else
 489                     "WARNING",
 490 #endif
 491                     NULL);
 492   ret = check ();
 493   /**
 494    * Need to remove base directory, subdirectories taken care
 495    * of by the testing framework.
 496    */
 497   return ret;
 498 }
 499
 500 /* end of test_gns_twopeer.c */