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.gads"
  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 static void shutdown_task (void *cls,
 127                            const struct GNUNET_SCHEDULER_TaskContext *tc)
 128 {
 129   GNUNET_GNS_disconnect(gns_handle);
 130   GNUNET_log (GNUNET_ERROR_TYPE_INFO, "Shutting down peer!\n");
 131   GNUNET_SCHEDULER_shutdown ();
 132 }
 133
 134 static void
 135 on_lookup_result(void *cls, uint32_t rd_count,
 136                  const struct GNUNET_NAMESTORE_RecordData *rd)
 137 {
 138   struct in_addr a;
 139   int i;
 140   char* addr;
 141
 142   if (GNUNET_SCHEDULER_NO_TASK != die_task)
 143   {
 144       GNUNET_SCHEDULER_cancel (die_task);
 145       die_task = GNUNET_SCHEDULER_NO_TASK;
 146   }
 147
 148   GNUNET_NAMESTORE_disconnect (namestore_handle);
 149   namestore_handle = NULL;
 150   if (rd_count == 0)
 151   {
 152     GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
 153                 "Lookup failed, rp_filtering?\n");
 154     ok = 2;
 155   }
 156   else
 157   {
 158     ok = 1;
 159     GNUNET_log (GNUNET_ERROR_TYPE_INFO, "name: %s\n", (char*)cls);
 160     for (i=0; i<rd_count; i++)
 161     {
 162       GNUNET_log (GNUNET_ERROR_TYPE_INFO, "type: %d\n", rd[i].record_type);
 163       if (rd[i].record_type == GNUNET_GNS_RECORD_A)
 164       {
 165         memcpy(&a, rd[i].data, sizeof(a));
 166         addr = inet_ntoa(a);
 167         GNUNET_log (GNUNET_ERROR_TYPE_INFO, "address: %s\n", addr);
 168         if (0 == strcmp(addr, TEST_IP))
 169         {
 170           GNUNET_log (GNUNET_ERROR_TYPE_INFO,
 171                     "%s correctly resolved to %s!\n", TEST_DOMAIN, addr);
 172           ok = 0;
 173         }
 174       }
 175       else
 176       {
 177         GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "No resolution!\n");
 178       }
 179     }
 180   }
 181   GNUNET_DHT_disconnect (dht_handle);
 182   dht_handle = NULL;
 183
 184   GNUNET_SCHEDULER_add_now (&shutdown_task, NULL);
 185 }
 186
 187
 188 /**
 189  * Function scheduled to be run on the successful start of services
 190  * tries to look up the dns record for TEST_DOMAIN
 191  */
 192 static void
 193 commence_testing (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
 194 {
 195   gns_handle = GNUNET_GNS_connect(cfg);
 196
 197   if (NULL == gns_handle)
 198   {
 199     GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
 200                 "Failed to connect to GNS!\n");
 201     end_badly_now();
 202     return;
 203   }
 204
 205   GNUNET_GNS_lookup(gns_handle, TEST_DOMAIN, GNUNET_GNS_RECORD_A,
 206                     GNUNET_NO,
 207                     NULL,
 208                     &on_lookup_result, TEST_DOMAIN);
 209 }
 210
 211
 212 static void
 213 put_dht(void *cls, int32_t success, const char *emsg)
 214 {
 215   struct GNSNameRecordBlock *nrb;
 216   struct GNUNET_CRYPTO_ShortHashCode name_hash;
 217   struct GNUNET_CRYPTO_ShortHashCode zone_hash;
 218   struct GNUNET_HashCode xor_hash;
 219   struct GNUNET_HashCode name_hash_double;
 220   struct GNUNET_HashCode zone_hash_double;
 221   uint32_t rd_payload_length;
 222   char* nrb_data = NULL;
 223   struct GNUNET_CRYPTO_RsaSignature *sig;
 224   struct GNUNET_NAMESTORE_RecordData rd;
 225   char* ip = TEST_IP;
 226   struct in_addr *web = GNUNET_malloc(sizeof(struct in_addr));
 227
 228   rd.expiration_time = UINT64_MAX;
 229   GNUNET_assert(1 == inet_pton (AF_INET, ip, web));
 230   rd.data_size = sizeof(struct in_addr);
 231   rd.data = web;
 232   rd.record_type = GNUNET_DNSPARSER_TYPE_A;
 233   rd.flags = GNUNET_NAMESTORE_RF_AUTHORITY;
 234
 235   sig = GNUNET_NAMESTORE_create_signature(bob_key, GNUNET_TIME_UNIT_FOREVER_ABS, TEST_RECORD_NAME,
 236                                           &rd, 1);
 237
 238   GNUNET_assert (GNUNET_OK == GNUNET_NAMESTORE_verify_signature (&bob_pkey,
 239                                                                  GNUNET_TIME_UNIT_FOREVER_ABS,
 240                                                                  TEST_RECORD_NAME,
 241                                                                  1,
 242                                                                  &rd,
 243                                                                  sig));
 244   rd_payload_length = GNUNET_NAMESTORE_records_get_size (1, &rd);
 245   nrb = GNUNET_malloc(rd_payload_length + strlen(TEST_RECORD_NAME) + 1
 246                       + sizeof(struct GNSNameRecordBlock));
 247   nrb->signature = *sig;
 248   nrb->public_key = bob_pkey;
 249   nrb->rd_count = htonl(1);
 250   memset(&nrb[1], 0, strlen(TEST_RECORD_NAME) + 1);
 251   strcpy((char*)&nrb[1], TEST_RECORD_NAME);
 252   nrb_data = (char*)&nrb[1];
 253   nrb_data += strlen(TEST_RECORD_NAME) + 1;
 254
 255   if (-1 == GNUNET_NAMESTORE_records_serialize (1,
 256                                                 &rd,
 257                                                 rd_payload_length,
 258                                                 nrb_data))
 259   {
 260     GNUNET_log(GNUNET_ERROR_TYPE_ERROR, "Record serialization failed!\n");
 261     ok = 3;
 262     GNUNET_free (nrb);
 263     GNUNET_free (web);
 264     end_badly_now ();
 265     return;
 266   }
 267   GNUNET_CRYPTO_short_hash(TEST_RECORD_NAME, strlen(TEST_RECORD_NAME), &name_hash);
 268   GNUNET_CRYPTO_short_hash(&bob_pkey,
 269                      sizeof(struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded),
 270                      &zone_hash);
 271   GNUNET_CRYPTO_short_hash_double(&zone_hash, &zone_hash_double);
 272   GNUNET_CRYPTO_short_hash_double(&name_hash, &name_hash_double);
 273   GNUNET_CRYPTO_hash_xor(&zone_hash_double, &name_hash_double, &xor_hash);
 274
 275   rd_payload_length += sizeof(struct GNSNameRecordBlock) +
 276     strlen(TEST_RECORD_NAME) + 1;
 277   GNUNET_DHT_put (dht_handle, &xor_hash,
 278                   0,
 279                   GNUNET_DHT_RO_DEMULTIPLEX_EVERYWHERE,
 280                   GNUNET_BLOCK_TYPE_GNS_NAMERECORD,
 281                   rd_payload_length,
 282                   (char*)nrb,
 283                   GNUNET_TIME_UNIT_FOREVER_ABS,
 284                   DHT_OPERATION_TIMEOUT,
 285                   NULL,
 286                   NULL);
 287   GNUNET_free (web);
 288   GNUNET_free (nrb);
 289   GNUNET_free (sig);
 290   if (GNUNET_SCHEDULER_NO_TASK != die_task)
 291   {
 292       GNUNET_SCHEDULER_cancel (die_task);
 293       die_task = GNUNET_SCHEDULER_add_delayed (TIMEOUT, &end_badly, NULL);
 294   }
 295   wait_task = GNUNET_SCHEDULER_add_delayed(DHT_DELAY, &commence_testing, NULL);
 296 }
 297
 298 static void
 299 do_check (void *cls,
 300           const struct GNUNET_CONFIGURATION_Handle *ccfg,
 301           struct GNUNET_TESTING_Peer *peer)
 302 {
 303   char* alice_keyfile;
 304   struct GNUNET_CRYPTO_ShortHashCode bob_hash;
 305
 306   cfg = ccfg;
 307   die_task = GNUNET_SCHEDULER_add_delayed (TIMEOUT, &end_badly, NULL);
 308
 309   /* put records into namestore */
 310   namestore_handle = GNUNET_NAMESTORE_connect(cfg);
 311   if (NULL == namestore_handle)
 312   {
 313     GNUNET_log(GNUNET_ERROR_TYPE_ERROR, "Failed to connect to namestore\n");
 314     end_badly_now ();
 315     return;
 316   }
 317
 318   /* dht */
 319   dht_handle = GNUNET_DHT_connect(cfg, 1);
 320   if (NULL == dht_handle)
 321   {
 322     GNUNET_log(GNUNET_ERROR_TYPE_ERROR, "Failed to connect to dht\n");
 323     end_badly_now ();
 324     return;
 325   }
 326
 327   if (GNUNET_OK != GNUNET_CONFIGURATION_get_value_filename (cfg, "gns",
 328                                                           "ZONEKEY",
 329                                                           &alice_keyfile))
 330   {
 331     GNUNET_log(GNUNET_ERROR_TYPE_ERROR, "Failed to get key from cfg\n");
 332     end_badly_now ();
 333     return;
 334   }
 335
 336   alice_key = GNUNET_CRYPTO_rsa_key_create_from_file (alice_keyfile);
 337   bob_key = GNUNET_CRYPTO_rsa_key_create_from_file (KEYFILE_BOB);
 338
 339   GNUNET_free(alice_keyfile);
 340
 341   GNUNET_CRYPTO_rsa_key_get_public (alice_key, &alice_pkey);
 342   GNUNET_CRYPTO_rsa_key_get_public (bob_key, &bob_pkey);
 343   GNUNET_CRYPTO_short_hash(&bob_pkey, sizeof(bob_pkey), &bob_hash);
 344
 345   struct GNUNET_NAMESTORE_RecordData rd;
 346   rd.expiration_time = UINT64_MAX;
 347   rd.data_size = sizeof(struct GNUNET_CRYPTO_ShortHashCode);
 348   rd.data = &bob_hash;
 349   rd.record_type = GNUNET_GNS_RECORD_PKEY;
 350   rd.flags = GNUNET_NAMESTORE_RF_AUTHORITY;
 351
 352   GNUNET_NAMESTORE_record_create (namestore_handle,
 353                                   alice_key,
 354                                   TEST_AUTHORITY_NAME,
 355                                   &rd,
 356                                   &put_dht,
 357                                   NULL);
 358 }
 359
 360
 361 int
 362 main (int argc, char *argv[])
 363 {
 364   ok = 1;
 365
 366   GNUNET_log_setup ("test-gns-dht-delegated-lookup",
 367 #if VERBOSE
 368                     "DEBUG",
 369 #else
 370                     "WARNING",
 371 #endif
 372                     NULL);
 373   GNUNET_TESTING_peer_run ("test-gns-dht-delegated-lookup", "test_gns_simple_lookup.conf", &do_check, NULL);
 374   return ok;
 375 }
 376
 377
 378 /* end of test_gns_dht_delegated_lookup.c */