src/gns/test_gns_dht_delegated_lookup.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_delegated_lookup.c
  22  * @brief test for record lookup via DHT
  23  *
  24  */
  25 #include "platform.h"
  26 #include "gnunet_testing_lib.h"
  27 #include "gnunet_core_service.h"
  28 #include "block_gns.h"
  29 #include "gnunet_signatures.h"
  30 #include "gnunet_namestore_service.h"
  31 #include "../namestore/namestore.h"
  32 #include "gnunet_dnsparser_lib.h"
  33 #include "gnunet_dht_service.h"
  34 #include "gnunet_gns_service.h"
  35
  36 /* DEFINES */
  37 #define VERBOSE GNUNET_YES
  38
  39 /* Timeout for entire testcase */
  40 #define TIMEOUT GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 5)
  41
  42 /* If number of peers not in config file, use this number */
  43 #define DEFAULT_NUM_PEERS 2
  44
  45 /* test records to resolve */
  46 #define TEST_DOMAIN "www.bob.gnunet"
  47 #define TEST_IP "127.0.0.1"
  48 #define TEST_RECORD_NAME "www"
  49
  50 #define TEST_AUTHORITY_NAME "bob"
  51
  52 #define DHT_OPERATION_TIMEOUT GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 1)
  53
  54 /* Globals */
  55
  56 /**
  57  * Directory to store temp data in, defined in config file
  58  */
  59 static char *test_directory;
  60
  61 struct GNUNET_TESTING_Daemon *d1;
  62
  63
  64 /* Task handle to use to schedule test failure */
  65 GNUNET_SCHEDULER_TaskIdentifier die_task;
  66
  67 /* Global return value (0 for success, anything else for failure) */
  68 static int ok;
  69
  70 static struct GNUNET_NAMESTORE_Handle *namestore_handle;
  71
  72 static struct GNUNET_GNS_Handle *gns_handle;
  73
  74 static struct GNUNET_DHT_Handle *dht_handle;
  75
  76 const struct GNUNET_CONFIGURATION_Handle *cfg;
  77
  78 struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded alice_pkey;
  79 struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded bob_pkey;
  80 struct GNUNET_CRYPTO_RsaPrivateKey *alice_key;
  81 struct GNUNET_CRYPTO_RsaPrivateKey *bob_key;
  82
  83 /**
  84  * Check whether peers successfully shut down.
  85  */
  86 void
  87 shutdown_callback (void *cls, const char *emsg)
  88 {
  89   if (emsg != NULL)
  90   {
  91     GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Error on shutdown! ret=%d\n", ok);
  92     if (ok == 0)
  93       ok = 2;
  94   }
  95
  96   GNUNET_log (GNUNET_ERROR_TYPE_INFO, "done(ret=%d)!\n", ok);
  97 }
  98
  99
 100 static void
 101 on_lookup_result(void *cls, uint32_t rd_count,
 102                  const struct GNUNET_NAMESTORE_RecordData *rd)
 103 {
 104   struct in_addr a;
 105   int i;
 106   char* addr;
 107
 108   if (rd_count == 0)
 109   {
 110     GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
 111                 "Lookup failed, rp_filtering?\n");
 112     ok = 2;
 113   }
 114   else
 115   {
 116     ok = 1;
 117     GNUNET_log (GNUNET_ERROR_TYPE_INFO, "name: %s\n", (char*)cls);
 118     for (i=0; i<rd_count; i++)
 119     {
 120       GNUNET_log (GNUNET_ERROR_TYPE_INFO, "type: %d\n", rd[i].record_type);
 121       if (rd[i].record_type == GNUNET_GNS_RECORD_TYPE_A)
 122       {
 123         memcpy(&a, rd[i].data, sizeof(a));
 124         addr = inet_ntoa(a);
 125         GNUNET_log (GNUNET_ERROR_TYPE_INFO, "address: %s\n", addr);
 126         if (0 == strcmp(addr, TEST_IP))
 127         {
 128           GNUNET_log (GNUNET_ERROR_TYPE_INFO,
 129                     "%s correctly resolved to %s!\n", TEST_DOMAIN, addr);
 130           ok = 0;
 131         }
 132       }
 133       else
 134       {
 135         GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "No resolution!\n");
 136       }
 137     }
 138   }
 139   GNUNET_GNS_disconnect(gns_handle);
 140   GNUNET_log (GNUNET_ERROR_TYPE_INFO, "Shutting down peer1!\n");
 141   GNUNET_TESTING_daemon_stop (d1, TIMEOUT, &shutdown_callback, NULL,
 142                               GNUNET_YES, GNUNET_NO);
 143 }
 144
 145
 146 /**
 147  * Function scheduled to be run on the successful start of services
 148  * tries to look up the dns record for TEST_DOMAIN
 149  */
 150 static void
 151 commence_testing (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
 152 {
 153   GNUNET_NAMESTORE_disconnect(namestore_handle, GNUNET_YES);
 154
 155   gns_handle = GNUNET_GNS_connect(cfg);
 156
 157   if (NULL == gns_handle)
 158   {
 159     GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
 160                 "Failed to connect to GNS!\n");
 161   }
 162
 163   GNUNET_GNS_lookup(gns_handle, TEST_DOMAIN, GNUNET_GNS_RECORD_TYPE_A,
 164                     &on_lookup_result, TEST_DOMAIN);
 165 }
 166
 167 /**
 168  * Continuation for the GNUNET_DHT_get_stop call, so that we don't shut
 169  * down the peers without freeing memory associated with GET request.
 170  */
 171 static void
 172 end_badly_cont (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
 173 {
 174
 175   if (d1 != NULL)
 176     GNUNET_TESTING_daemon_stop (d1, TIMEOUT, &shutdown_callback, NULL,
 177                                 GNUNET_YES, GNUNET_NO);
 178   GNUNET_SCHEDULER_cancel (die_task);
 179 }
 180
 181 /**
 182  * Check if the get_handle is being used, if so stop the request.  Either
 183  * way, schedule the end_badly_cont function which actually shuts down the
 184  * test.
 185  */
 186 static void
 187 end_badly (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
 188 {
 189   GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Failing test with error: `%s'!\n",
 190               (char *) cls);
 191   GNUNET_SCHEDULER_add_now (&end_badly_cont, NULL);
 192   ok = 1;
 193 }
 194
 195
 196 static void
 197 put_dht(void *cls, int32_t success, const char *emsg)
 198 {
 199   struct GNSNameRecordBlock *nrb;
 200   struct GNUNET_CRYPTO_ShortHashCode name_hash;
 201   struct GNUNET_CRYPTO_ShortHashCode zone_hash;
 202   GNUNET_HashCode xor_hash;
 203   GNUNET_HashCode name_hash_double;
 204   GNUNET_HashCode zone_hash_double;
 205   uint32_t rd_payload_length;
 206   char* nrb_data = NULL;
 207   struct GNUNET_CRYPTO_RsaSignature *sig;
 208   struct GNUNET_NAMESTORE_RecordData rd;
 209   char* ip = TEST_IP;
 210   struct in_addr *web = GNUNET_malloc(sizeof(struct in_addr));
 211
 212   rd.expiration = GNUNET_TIME_absolute_get_forever ();
 213   GNUNET_assert(1 == inet_pton (AF_INET, ip, web));
 214   rd.data_size = sizeof(struct in_addr);
 215   rd.data = web;
 216   rd.record_type = GNUNET_DNSPARSER_TYPE_A;
 217
 218   sig = GNUNET_NAMESTORE_create_signature(bob_key, GNUNET_TIME_absolute_get_forever(), TEST_RECORD_NAME,
 219                                           &rd, 1);
 220   rd_payload_length = GNUNET_NAMESTORE_records_get_size (1, &rd);
 221   nrb = GNUNET_malloc(rd_payload_length + strlen(TEST_RECORD_NAME) + 1
 222                       + sizeof(struct GNSNameRecordBlock));
 223   nrb->signature = *sig;
 224   nrb->public_key = bob_pkey;
 225   nrb->rd_count = htonl(1);
 226   memset(&nrb[1], 0, strlen(TEST_RECORD_NAME) + 1);
 227   strcpy((char*)&nrb[1], TEST_RECORD_NAME);
 228   nrb_data = (char*)&nrb[1];
 229   nrb_data += strlen(TEST_RECORD_NAME) + 1;
 230
 231   if (-1 == GNUNET_NAMESTORE_records_serialize (1,
 232                                                 &rd,
 233                                                 rd_payload_length,
 234                                                 nrb_data))
 235   {
 236     GNUNET_log(GNUNET_ERROR_TYPE_ERROR, "Record serialization failed!\n");
 237     ok = 3;
 238     GNUNET_free (nrb);
 239     return;
 240   }
 241   GNUNET_CRYPTO_short_hash(TEST_RECORD_NAME, strlen(TEST_RECORD_NAME), &name_hash);
 242   GNUNET_CRYPTO_short_hash(&bob_pkey,
 243                      sizeof(struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded),
 244                      &zone_hash);
 245   GNUNET_CRYPTO_short_hash_double(&zone_hash, &zone_hash_double);
 246   GNUNET_CRYPTO_short_hash_double(&name_hash, &name_hash_double);
 247   GNUNET_CRYPTO_hash_xor(&zone_hash_double, &name_hash_double, &xor_hash);
 248
 249   rd_payload_length += sizeof(struct GNSNameRecordBlock) +
 250     strlen(TEST_RECORD_NAME) + 1;
 251   GNUNET_DHT_put (dht_handle, &xor_hash,
 252                   0,
 253                   GNUNET_DHT_RO_NONE,
 254                   GNUNET_BLOCK_TYPE_GNS_NAMERECORD,
 255                   rd_payload_length,
 256                   (char*)nrb,
 257                   rd.expiration,
 258                   DHT_OPERATION_TIMEOUT,
 259                   NULL,
 260                   NULL);
 261   GNUNET_free (nrb);
 262   GNUNET_SCHEDULER_add_delayed(TIMEOUT, &commence_testing, NULL);
 263 }
 264
 265 static void
 266 do_lookup(void *cls, const struct GNUNET_PeerIdentity *id,
 267           const struct GNUNET_CONFIGURATION_Handle *cfg,
 268           struct GNUNET_TESTING_Daemon *d, const char *emsg)
 269 {
 270
 271
 272   char* alice_keyfile;
 273   struct GNUNET_CRYPTO_ShortHashCode bob_hash;
 274
 275
 276   GNUNET_SCHEDULER_cancel (die_task);
 277
 278   /* put records into namestore */
 279   namestore_handle = GNUNET_NAMESTORE_connect(cfg);
 280   if (NULL == namestore_handle)
 281   {
 282     GNUNET_log(GNUNET_ERROR_TYPE_ERROR, "Failed to connect to namestore\n");
 283     ok = -1;
 284     return;
 285   }
 286
 287   /* dht */
 288   dht_handle = GNUNET_DHT_connect(cfg, 1);
 289   if (NULL == dht_handle)
 290   {
 291     GNUNET_log(GNUNET_ERROR_TYPE_ERROR, "Failed to connect to dht\n");
 292     ok = -1;
 293     return;
 294   }
 295
 296   if (GNUNET_OK != GNUNET_CONFIGURATION_get_value_filename (cfg, "gns",
 297                                                           "ZONEKEY",
 298                                                           &alice_keyfile))
 299   {
 300     GNUNET_log(GNUNET_ERROR_TYPE_ERROR, "Failed to get key from cfg\n");
 301     ok = -1;
 302     return;
 303   }
 304
 305   alice_key = GNUNET_CRYPTO_rsa_key_create_from_file (alice_keyfile);
 306   bob_key = GNUNET_CRYPTO_rsa_key_create ();
 307
 308   GNUNET_free(alice_keyfile);
 309
 310   GNUNET_CRYPTO_rsa_key_get_public (alice_key, &alice_pkey);
 311   GNUNET_CRYPTO_rsa_key_get_public (bob_key, &bob_pkey);
 312   GNUNET_CRYPTO_short_hash(&bob_pkey, sizeof(bob_pkey), &bob_hash);
 313
 314   struct GNUNET_NAMESTORE_RecordData rd;
 315   rd.expiration = GNUNET_TIME_absolute_get_forever ();
 316   rd.data_size = sizeof(struct GNUNET_CRYPTO_ShortHashCode);
 317   rd.data = &bob_hash;
 318   rd.record_type = GNUNET_GNS_RECORD_PKEY;
 319
 320   GNUNET_NAMESTORE_record_create (namestore_handle,
 321                                   alice_key,
 322                                   TEST_AUTHORITY_NAME,
 323                                   &rd,
 324                                   &put_dht,
 325                                   NULL);
 326
 327
 328
 329 }
 330
 331 static void
 332 run (void *cls, char *const *args, const char *cfgfile,
 333      const struct GNUNET_CONFIGURATION_Handle *c)
 334 {
 335   cfg = c;
 336    /* Get path from configuration file */
 337   if (GNUNET_YES !=
 338       GNUNET_CONFIGURATION_get_value_string (cfg, "paths", "servicehome",
 339                                              &test_directory))
 340   {
 341     ok = 404;
 342     return;
 343   }
 344
 345
 346   /* Set up a task to end testing if peer start fails */
 347   die_task =
 348       GNUNET_SCHEDULER_add_delayed (TIMEOUT, &end_badly,
 349                                     "didn't start all daemons in reasonable amount of time!!!");
 350
 351   /* Start alice */
 352   d1 = GNUNET_TESTING_daemon_start(cfg, TIMEOUT, GNUNET_NO, NULL, NULL, 0,
 353                                    NULL, NULL, NULL, &do_lookup, NULL);
 354 }
 355
 356 static int
 357 check ()
 358 {
 359   int ret;
 360
 361   /* Arguments for GNUNET_PROGRAM_run */
 362   char *const argv[] = { "test-gns-dht-delegated-lookup", /* Name to give running binary */
 363     "-c",
 364     "test_gns_simple_lookup.conf",       /* Config file to use */
 365 #if VERBOSE
 366     "-L", "DEBUG",
 367 #endif
 368     NULL
 369   };
 370   struct GNUNET_GETOPT_CommandLineOption options[] = {
 371     GNUNET_GETOPT_OPTION_END
 372   };
 373   /* Run the run function as a new program */
 374   ret =
 375       GNUNET_PROGRAM_run ((sizeof (argv) / sizeof (char *)) - 1, argv,
 376                           "test-gns-dht-delegated-lookup", "nohelp", options, &run,
 377                           &ok);
 378   if (ret != GNUNET_OK)
 379   {
 380     GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
 381                 "`test-gns-dht-delegated-lookup': Failed with error code %d\n", ret);
 382   }
 383   return ok;
 384 }
 385
 386 int
 387 main (int argc, char *argv[])
 388 {
 389   int ret;
 390
 391   GNUNET_log_setup ("test-gns-simple-lookup",
 392 #if VERBOSE
 393                     "DEBUG",
 394 #else
 395                     "WARNING",
 396 #endif
 397                     NULL);
 398   ret = check ();
 399   /**
 400    * Need to remove base directory, subdirectories taken care
 401    * of by the testing framework.
 402    */
 403   return ret;
 404 }
 405
 406 /* end of test_gns_twopeer.c */