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-new.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, 20)
  41
  42 /* Timeout for entire testcase */
  43 #define DHT_DELAY GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 10)
  44
  45 /* If number of peers not in config file, use this number */
  46 #define DEFAULT_NUM_PEERS 2
  47
  48 /* test records to resolve */
  49 #define TEST_DOMAIN "www.bob.gnunet"
  50 #define TEST_IP "127.0.0.1"
  51 #define TEST_RECORD_NAME "www"
  52
  53 #define TEST_AUTHORITY_NAME "bob"
  54
  55 #define DHT_OPERATION_TIMEOUT GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 1)
  56
  57 #define KEYFILE_BOB "../namestore/zonefiles/HGU0A0VCU334DN7F2I9UIUMVQMM7JMSD142LIMNUGTTV9R0CF4EG.zkey"
  58
  59 /* Globals */
  60
  61 /* Task handle to use to schedule test failure */
  62 GNUNET_SCHEDULER_TaskIdentifier die_task;
  63 GNUNET_SCHEDULER_TaskIdentifier wait_task;
  64
  65 /* Global return value (0 for success, anything else for failure) */
  66 static int ok;
  67
  68 static struct GNUNET_NAMESTORE_Handle *namestore_handle;
  69
  70 static struct GNUNET_GNS_Handle *gns_handle;
  71
  72 static struct GNUNET_DHT_Handle *dht_handle;
  73
  74 const struct GNUNET_CONFIGURATION_Handle *cfg;
  75
  76 struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded alice_pkey;
  77 struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded bob_pkey;
  78 struct GNUNET_CRYPTO_RsaPrivateKey *alice_key;
  79 struct GNUNET_CRYPTO_RsaPrivateKey *bob_key;
  80
  81
  82 /**
  83  * Check if the get_handle is being used, if so stop the request.  Either
  84  * way, schedule the end_badly_cont function which actually shuts down the
  85  * test.
  86  */
  87 static void
  88 end_badly (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
  89 {
  90   die_task = GNUNET_SCHEDULER_NO_TASK;
  91   if (NULL != gns_handle)
  92   {
  93     GNUNET_GNS_disconnect (gns_handle);
  94     gns_handle = NULL;
  95   }
  96
  97   if (NULL != dht_handle)
  98   {
  99     GNUNET_DHT_disconnect (dht_handle);
 100     dht_handle = NULL;
 101   }
 102
 103   if (NULL != namestore_handle)
 104   {
 105     GNUNET_NAMESTORE_disconnect (namestore_handle);
 106     namestore_handle = NULL;
 107   }
 108   GNUNET_break (0);
 109   GNUNET_SCHEDULER_shutdown ();
 110   ok = 1;
 111 }
 112
 113 static void
 114 end_badly_now ()
 115 {
 116
 117   if (GNUNET_SCHEDULER_NO_TASK != wait_task)
 118   {
 119       GNUNET_SCHEDULER_cancel (wait_task);
 120       wait_task = GNUNET_SCHEDULER_NO_TASK;
 121   }
 122   GNUNET_SCHEDULER_cancel (die_task);
 123   die_task = GNUNET_SCHEDULER_add_now (&end_badly, NULL);
 124 }
 125
 126
 127 static void
 128 on_lookup_result(void *cls, uint32_t rd_count,
 129                  const struct GNUNET_NAMESTORE_RecordData *rd)
 130 {
 131   struct in_addr a;
 132   int i;
 133   char* addr;
 134
 135   if (GNUNET_SCHEDULER_NO_TASK != die_task)
 136   {
 137       GNUNET_SCHEDULER_cancel (die_task);
 138       die_task = GNUNET_SCHEDULER_NO_TASK;
 139   }
 140
 141   GNUNET_NAMESTORE_disconnect (namestore_handle);
 142   namestore_handle = NULL;
 143   if (rd_count == 0)
 144   {
 145     GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
 146                 "Lookup failed, rp_filtering?\n");
 147     ok = 2;
 148   }
 149   else
 150   {
 151     ok = 1;
 152     GNUNET_log (GNUNET_ERROR_TYPE_INFO, "name: %s\n", (char*)cls);
 153     for (i=0; i<rd_count; i++)
 154     {
 155       GNUNET_log (GNUNET_ERROR_TYPE_INFO, "type: %d\n", rd[i].record_type);
 156       if (rd[i].record_type == GNUNET_GNS_RECORD_A)
 157       {
 158         memcpy(&a, rd[i].data, sizeof(a));
 159         addr = inet_ntoa(a);
 160         GNUNET_log (GNUNET_ERROR_TYPE_INFO, "address: %s\n", addr);
 161         if (0 == strcmp(addr, TEST_IP))
 162         {
 163           GNUNET_log (GNUNET_ERROR_TYPE_INFO,
 164                     "%s correctly resolved to %s!\n", TEST_DOMAIN, addr);
 165           ok = 0;
 166         }
 167       }
 168       else
 169       {
 170         GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "No resolution!\n");
 171       }
 172     }
 173   }
 174   GNUNET_GNS_disconnect(gns_handle);
 175   gns_handle = NULL;
 176   GNUNET_DHT_disconnect (dht_handle);
 177   dht_handle = NULL;
 178   GNUNET_log (GNUNET_ERROR_TYPE_INFO, "Shutting down peer!\n");
 179   GNUNET_SCHEDULER_shutdown ();
 180 }
 181
 182
 183 /**
 184  * Function scheduled to be run on the successful start of services
 185  * tries to look up the dns record for TEST_DOMAIN
 186  */
 187 static void
 188 commence_testing (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
 189 {
 190   gns_handle = GNUNET_GNS_connect(cfg);
 191
 192   if (NULL == gns_handle)
 193   {
 194     GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
 195                 "Failed to connect to GNS!\n");
 196     end_badly_now();
 197     return;
 198   }
 199
 200   GNUNET_GNS_lookup(gns_handle, TEST_DOMAIN, GNUNET_GNS_RECORD_A,
 201                     GNUNET_NO,
 202                     NULL,
 203                     &on_lookup_result, TEST_DOMAIN);
 204 }
 205
 206
 207 static void
 208 put_dht(void *cls, int32_t success, const char *emsg)
 209 {
 210   struct GNSNameRecordBlock *nrb;
 211   struct GNUNET_CRYPTO_ShortHashCode name_hash;
 212   struct GNUNET_CRYPTO_ShortHashCode zone_hash;
 213   struct GNUNET_HashCode xor_hash;
 214   struct GNUNET_HashCode name_hash_double;
 215   struct GNUNET_HashCode zone_hash_double;
 216   uint32_t rd_payload_length;
 217   char* nrb_data = NULL;
 218   struct GNUNET_CRYPTO_RsaSignature *sig;
 219   struct GNUNET_NAMESTORE_RecordData rd;
 220   char* ip = TEST_IP;
 221   struct in_addr *web = GNUNET_malloc(sizeof(struct in_addr));
 222
 223   rd.expiration_time = UINT64_MAX;
 224   GNUNET_assert(1 == inet_pton (AF_INET, ip, web));
 225   rd.data_size = sizeof(struct in_addr);
 226   rd.data = web;
 227   rd.record_type = GNUNET_DNSPARSER_TYPE_A;
 228   rd.flags = GNUNET_NAMESTORE_RF_AUTHORITY;
 229
 230   sig = GNUNET_NAMESTORE_create_signature(bob_key, GNUNET_TIME_UNIT_FOREVER_ABS, TEST_RECORD_NAME,
 231                                           &rd, 1);
 232
 233   GNUNET_assert (GNUNET_OK == GNUNET_NAMESTORE_verify_signature (&bob_pkey,
 234                                                                  GNUNET_TIME_UNIT_FOREVER_ABS,
 235                                                                  TEST_RECORD_NAME,
 236                                                                  1,
 237                                                                  &rd,
 238                                                                  sig));
 239   rd_payload_length = GNUNET_NAMESTORE_records_get_size (1, &rd);
 240   nrb = GNUNET_malloc(rd_payload_length + strlen(TEST_RECORD_NAME) + 1
 241                       + sizeof(struct GNSNameRecordBlock));
 242   nrb->signature = *sig;
 243   nrb->public_key = bob_pkey;
 244   nrb->rd_count = htonl(1);
 245   memset(&nrb[1], 0, strlen(TEST_RECORD_NAME) + 1);
 246   strcpy((char*)&nrb[1], TEST_RECORD_NAME);
 247   nrb_data = (char*)&nrb[1];
 248   nrb_data += strlen(TEST_RECORD_NAME) + 1;
 249
 250   if (-1 == GNUNET_NAMESTORE_records_serialize (1,
 251                                                 &rd,
 252                                                 rd_payload_length,
 253                                                 nrb_data))
 254   {
 255     GNUNET_log(GNUNET_ERROR_TYPE_ERROR, "Record serialization failed!\n");
 256     ok = 3;
 257     GNUNET_free (nrb);
 258     GNUNET_free (web);
 259     end_badly_now ();
 260     return;
 261   }
 262   GNUNET_CRYPTO_short_hash(TEST_RECORD_NAME, strlen(TEST_RECORD_NAME), &name_hash);
 263   GNUNET_CRYPTO_short_hash(&bob_pkey,
 264                      sizeof(struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded),
 265                      &zone_hash);
 266   GNUNET_CRYPTO_short_hash_double(&zone_hash, &zone_hash_double);
 267   GNUNET_CRYPTO_short_hash_double(&name_hash, &name_hash_double);
 268   GNUNET_CRYPTO_hash_xor(&zone_hash_double, &name_hash_double, &xor_hash);
 269
 270   rd_payload_length += sizeof(struct GNSNameRecordBlock) +
 271     strlen(TEST_RECORD_NAME) + 1;
 272   GNUNET_DHT_put (dht_handle, &xor_hash,
 273                   0,
 274                   GNUNET_DHT_RO_DEMULTIPLEX_EVERYWHERE,
 275                   GNUNET_BLOCK_TYPE_GNS_NAMERECORD,
 276                   rd_payload_length,
 277                   (char*)nrb,
 278                   GNUNET_TIME_UNIT_FOREVER_ABS,
 279                   DHT_OPERATION_TIMEOUT,
 280                   NULL,
 281                   NULL);
 282   GNUNET_free (web);
 283   GNUNET_free (nrb);
 284   GNUNET_free (sig);
 285   if (GNUNET_SCHEDULER_NO_TASK != die_task)
 286   {
 287       GNUNET_SCHEDULER_cancel (die_task);
 288       die_task = GNUNET_SCHEDULER_add_delayed (TIMEOUT, &end_badly, NULL);
 289   }
 290   wait_task = GNUNET_SCHEDULER_add_delayed(DHT_DELAY, &commence_testing, NULL);
 291 }
 292
 293 static void
 294 do_check (void *cls,
 295           const struct GNUNET_CONFIGURATION_Handle *ccfg,
 296           struct GNUNET_TESTING_Peer *peer)
 297 {
 298   char* alice_keyfile;
 299   struct GNUNET_CRYPTO_ShortHashCode bob_hash;
 300
 301   cfg = ccfg;
 302   die_task = GNUNET_SCHEDULER_add_delayed (TIMEOUT, &end_badly, NULL);
 303
 304   /* put records into namestore */
 305   namestore_handle = GNUNET_NAMESTORE_connect(cfg);
 306   if (NULL == namestore_handle)
 307   {
 308     GNUNET_log(GNUNET_ERROR_TYPE_ERROR, "Failed to connect to namestore\n");
 309     end_badly_now ();
 310     return;
 311   }
 312
 313   /* dht */
 314   dht_handle = GNUNET_DHT_connect(cfg, 1);
 315   if (NULL == dht_handle)
 316   {
 317     GNUNET_log(GNUNET_ERROR_TYPE_ERROR, "Failed to connect to dht\n");
 318     end_badly_now ();
 319     return;
 320   }
 321
 322   if (GNUNET_OK != GNUNET_CONFIGURATION_get_value_filename (cfg, "gns",
 323                                                           "ZONEKEY",
 324                                                           &alice_keyfile))
 325   {
 326     GNUNET_log(GNUNET_ERROR_TYPE_ERROR, "Failed to get key from cfg\n");
 327     end_badly_now ();
 328     return;
 329   }
 330
 331   alice_key = GNUNET_CRYPTO_rsa_key_create_from_file (alice_keyfile);
 332   bob_key = GNUNET_CRYPTO_rsa_key_create_from_file (KEYFILE_BOB);
 333
 334   GNUNET_free(alice_keyfile);
 335
 336   GNUNET_CRYPTO_rsa_key_get_public (alice_key, &alice_pkey);
 337   GNUNET_CRYPTO_rsa_key_get_public (bob_key, &bob_pkey);
 338   GNUNET_CRYPTO_short_hash(&bob_pkey, sizeof(bob_pkey), &bob_hash);
 339
 340   struct GNUNET_NAMESTORE_RecordData rd;
 341   rd.expiration_time = UINT64_MAX;
 342   rd.data_size = sizeof(struct GNUNET_CRYPTO_ShortHashCode);
 343   rd.data = &bob_hash;
 344   rd.record_type = GNUNET_GNS_RECORD_PKEY;
 345   rd.flags = GNUNET_NAMESTORE_RF_AUTHORITY;
 346
 347   GNUNET_NAMESTORE_record_create (namestore_handle,
 348                                   alice_key,
 349                                   TEST_AUTHORITY_NAME,
 350                                   &rd,
 351                                   &put_dht,
 352                                   NULL);
 353 }
 354
 355
 356 int
 357 main (int argc, char *argv[])
 358 {
 359   ok = 1;
 360
 361   GNUNET_log_setup ("test-gns-dht-delegated-lookup",
 362 #if VERBOSE
 363                     "DEBUG",
 364 #else
 365                     "WARNING",
 366 #endif
 367                     NULL);
 368   GNUNET_TESTING_peer_run ("test-gns-dht-delegated-lookup", "test_gns_simple_lookup.conf", &do_check, NULL);
 369   return ok;
 370 }
 371
 372
 373 /* end of test_gns_dht_delegated_lookup.c */