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 /* Timeout for entire testcase */
  37 #define TIMEOUT GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 20)
  38
  39 /* Timeout for entire testcase */
  40 #define DHT_DELAY GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 10)
  41
  42 /* test records to resolve */
  43 #define TEST_DOMAIN "www.bob.gads"
  44 #define TEST_IP "127.0.0.1"
  45 #define TEST_RECORD_NAME "www"
  46
  47 #define TEST_AUTHORITY_NAME "bob"
  48
  49 #define DHT_OPERATION_TIMEOUT GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 1)
  50
  51 #define KEYFILE_BOB "../namestore/zonefiles/HGU0A0VCU334DN7F2I9UIUMVQMM7JMSD142LIMNUGTTV9R0CF4EG.zkey"
  52
  53 /* Task handle to use to schedule test failure */
  54 static GNUNET_SCHEDULER_TaskIdentifier die_task;
  55 static GNUNET_SCHEDULER_TaskIdentifier wait_task;
  56
  57 /* Global return value (0 for success, anything else for failure) */
  58 static int ok;
  59
  60 static struct GNUNET_NAMESTORE_Handle *namestore_handle;
  61
  62 static struct GNUNET_GNS_Handle *gns_handle;
  63
  64 static struct GNUNET_DHT_Handle *dht_handle;
  65
  66 static const struct GNUNET_CONFIGURATION_Handle *cfg;
  67
  68 static struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded alice_pkey;
  69 static struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded bob_pkey;
  70 static struct GNUNET_CRYPTO_RsaPrivateKey *alice_key;
  71 static struct GNUNET_CRYPTO_RsaPrivateKey *bob_key;
  72
  73
  74 /**
  75  * Check if the get_handle is being used, if so stop the request.  Either
  76  * way, schedule the end_badly_cont function which actually shuts down the
  77  * test.
  78  */
  79 static void
  80 end_badly (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
  81 {
  82   die_task = GNUNET_SCHEDULER_NO_TASK;
  83   if (NULL != gns_handle)
  84   {
  85     GNUNET_GNS_disconnect (gns_handle);
  86     gns_handle = NULL;
  87   }
  88
  89   if (NULL != dht_handle)
  90   {
  91     GNUNET_DHT_disconnect (dht_handle);
  92     dht_handle = NULL;
  93   }
  94
  95   if (NULL != namestore_handle)
  96   {
  97     GNUNET_NAMESTORE_disconnect (namestore_handle);
  98     namestore_handle = NULL;
  99   }
 100   GNUNET_break (0);
 101   GNUNET_SCHEDULER_shutdown ();
 102   ok = 1;
 103 }
 104
 105
 106 static void
 107 end_badly_now ()
 108 {
 109
 110   if (GNUNET_SCHEDULER_NO_TASK != wait_task)
 111   {
 112       GNUNET_SCHEDULER_cancel (wait_task);
 113       wait_task = GNUNET_SCHEDULER_NO_TASK;
 114   }
 115   GNUNET_SCHEDULER_cancel (die_task);
 116   die_task = GNUNET_SCHEDULER_add_now (&end_badly, NULL);
 117 }
 118
 119
 120 static void
 121 shutdown_task (void *cls,
 122                const struct GNUNET_SCHEDULER_TaskContext *tc)
 123 {
 124   GNUNET_GNS_disconnect(gns_handle);
 125   GNUNET_log (GNUNET_ERROR_TYPE_INFO, "Shutting down peer!\n");
 126   GNUNET_SCHEDULER_shutdown ();
 127 }
 128
 129
 130 static void
 131 on_lookup_result(void *cls, uint32_t rd_count,
 132                  const struct GNUNET_NAMESTORE_RecordData *rd)
 133 {
 134   struct in_addr a;
 135   int i;
 136   char* addr;
 137
 138   if (GNUNET_SCHEDULER_NO_TASK != die_task)
 139   {
 140       GNUNET_SCHEDULER_cancel (die_task);
 141       die_task = GNUNET_SCHEDULER_NO_TASK;
 142   }
 143
 144   GNUNET_NAMESTORE_disconnect (namestore_handle);
 145   namestore_handle = NULL;
 146   if (rd_count == 0)
 147   {
 148     GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
 149                 "Lookup failed, rp_filtering?\n");
 150     ok = 2;
 151   }
 152   else
 153   {
 154     ok = 1;
 155     GNUNET_log (GNUNET_ERROR_TYPE_INFO, "name: %s\n", (char*)cls);
 156     for (i=0; i<rd_count; i++)
 157     {
 158       GNUNET_log (GNUNET_ERROR_TYPE_INFO, "type: %d\n", rd[i].record_type);
 159       if (rd[i].record_type == GNUNET_GNS_RECORD_A)
 160       {
 161         memcpy(&a, rd[i].data, sizeof(a));
 162         addr = inet_ntoa(a);
 163         GNUNET_log (GNUNET_ERROR_TYPE_INFO, "address: %s\n", addr);
 164         if (0 == strcmp(addr, TEST_IP))
 165         {
 166           GNUNET_log (GNUNET_ERROR_TYPE_INFO,
 167                     "%s correctly resolved to %s!\n", TEST_DOMAIN, addr);
 168           ok = 0;
 169         }
 170       }
 171       else
 172       {
 173         GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "No resolution!\n");
 174       }
 175     }
 176   }
 177   GNUNET_DHT_disconnect (dht_handle);
 178   dht_handle = NULL;
 179
 180   GNUNET_SCHEDULER_add_now (&shutdown_task, NULL);
 181 }
 182
 183
 184 /**
 185  * Function scheduled to be run on the successful start of services
 186  * tries to look up the dns record for TEST_DOMAIN
 187  */
 188 static void
 189 commence_testing (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
 190 {
 191   gns_handle = GNUNET_GNS_connect(cfg);
 192
 193   if (NULL == gns_handle)
 194   {
 195     GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
 196                 "Failed to connect to GNS!\n");
 197     end_badly_now();
 198     return;
 199   }
 200
 201   GNUNET_GNS_lookup(gns_handle, TEST_DOMAIN, GNUNET_GNS_RECORD_A,
 202                     GNUNET_NO,
 203                     NULL,
 204                     &on_lookup_result, TEST_DOMAIN);
 205 }
 206
 207
 208 static void
 209 put_dht(void *cls, int32_t success, const char *emsg)
 210 {
 211   struct GNSNameRecordBlock *nrb;
 212   struct GNUNET_CRYPTO_ShortHashCode name_hash;
 213   struct GNUNET_CRYPTO_ShortHashCode zone_hash;
 214   struct GNUNET_HashCode xor_hash;
 215   struct GNUNET_HashCode name_hash_double;
 216   struct GNUNET_HashCode zone_hash_double;
 217   uint32_t rd_payload_length;
 218   char* nrb_data = NULL;
 219   struct GNUNET_CRYPTO_RsaSignature *sig;
 220   struct GNUNET_NAMESTORE_RecordData rd;
 221   char* ip = TEST_IP;
 222   struct in_addr *web = GNUNET_malloc(sizeof(struct in_addr));
 223
 224   rd.expiration_time = UINT64_MAX;
 225   GNUNET_assert(1 == inet_pton (AF_INET, ip, web));
 226   rd.data_size = sizeof(struct in_addr);
 227   rd.data = web;
 228   rd.record_type = GNUNET_DNSPARSER_TYPE_A;
 229   rd.flags = GNUNET_NAMESTORE_RF_AUTHORITY;
 230
 231   sig = GNUNET_NAMESTORE_create_signature(bob_key, GNUNET_TIME_UNIT_FOREVER_ABS, TEST_RECORD_NAME,
 232                                           &rd, 1);
 233
 234   GNUNET_assert (GNUNET_OK == GNUNET_NAMESTORE_verify_signature (&bob_pkey,
 235                                                                  GNUNET_TIME_UNIT_FOREVER_ABS,
 236                                                                  TEST_RECORD_NAME,
 237                                                                  1,
 238                                                                  &rd,
 239                                                                  sig));
 240   rd_payload_length = GNUNET_NAMESTORE_records_get_size (1, &rd);
 241   nrb = GNUNET_malloc(rd_payload_length + strlen(TEST_RECORD_NAME) + 1
 242                       + sizeof(struct GNSNameRecordBlock));
 243   nrb->signature = *sig;
 244   nrb->public_key = bob_pkey;
 245   nrb->rd_count = htonl(1);
 246   memset(&nrb[1], 0, strlen(TEST_RECORD_NAME) + 1);
 247   strcpy((char*)&nrb[1], TEST_RECORD_NAME);
 248   nrb_data = (char*)&nrb[1];
 249   nrb_data += strlen(TEST_RECORD_NAME) + 1;
 250
 251   if (-1 == GNUNET_NAMESTORE_records_serialize (1,
 252                                                 &rd,
 253                                                 rd_payload_length,
 254                                                 nrb_data))
 255   {
 256     GNUNET_log(GNUNET_ERROR_TYPE_ERROR, "Record serialization failed!\n");
 257     ok = 3;
 258     GNUNET_free (nrb);
 259     GNUNET_free (web);
 260     end_badly_now ();
 261     return;
 262   }
 263   GNUNET_CRYPTO_short_hash(TEST_RECORD_NAME, strlen(TEST_RECORD_NAME), &name_hash);
 264   GNUNET_CRYPTO_short_hash(&bob_pkey,
 265                      sizeof(struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded),
 266                      &zone_hash);
 267   GNUNET_CRYPTO_short_hash_double(&zone_hash, &zone_hash_double);
 268   GNUNET_CRYPTO_short_hash_double(&name_hash, &name_hash_double);
 269   GNUNET_CRYPTO_hash_xor(&zone_hash_double, &name_hash_double, &xor_hash);
 270
 271   rd_payload_length += sizeof(struct GNSNameRecordBlock) +
 272     strlen(TEST_RECORD_NAME) + 1;
 273   GNUNET_DHT_put (dht_handle, &xor_hash,
 274                   0,
 275                   GNUNET_DHT_RO_DEMULTIPLEX_EVERYWHERE,
 276                   GNUNET_BLOCK_TYPE_GNS_NAMERECORD,
 277                   rd_payload_length,
 278                   (char*)nrb,
 279                   GNUNET_TIME_UNIT_FOREVER_ABS,
 280                   DHT_OPERATION_TIMEOUT,
 281                   NULL,
 282                   NULL);
 283   GNUNET_free (web);
 284   GNUNET_free (nrb);
 285   GNUNET_free (sig);
 286   if (GNUNET_SCHEDULER_NO_TASK != die_task)
 287   {
 288       GNUNET_SCHEDULER_cancel (die_task);
 289       die_task = GNUNET_SCHEDULER_add_delayed (TIMEOUT, &end_badly, NULL);
 290   }
 291   wait_task = GNUNET_SCHEDULER_add_delayed(DHT_DELAY, &commence_testing, NULL);
 292 }
 293
 294
 295 static void
 296 do_check (void *cls,
 297           const struct GNUNET_CONFIGURATION_Handle *ccfg,
 298           struct GNUNET_TESTING_Peer *peer)
 299 {
 300   char* alice_keyfile;
 301   struct GNUNET_CRYPTO_ShortHashCode bob_hash;
 302
 303   cfg = ccfg;
 304   die_task = GNUNET_SCHEDULER_add_delayed (TIMEOUT, &end_badly, NULL);
 305
 306   /* put records into namestore */
 307   namestore_handle = GNUNET_NAMESTORE_connect(cfg);
 308   if (NULL == namestore_handle)
 309   {
 310     GNUNET_log(GNUNET_ERROR_TYPE_ERROR, "Failed to connect to namestore\n");
 311     end_badly_now ();
 312     return;
 313   }
 314
 315   /* dht */
 316   dht_handle = GNUNET_DHT_connect(cfg, 1);
 317   if (NULL == dht_handle)
 318   {
 319     GNUNET_log(GNUNET_ERROR_TYPE_ERROR, "Failed to connect to dht\n");
 320     end_badly_now ();
 321     return;
 322   }
 323
 324   if (GNUNET_OK != GNUNET_CONFIGURATION_get_value_filename (cfg, "gns",
 325                                                           "ZONEKEY",
 326                                                           &alice_keyfile))
 327   {
 328     GNUNET_log(GNUNET_ERROR_TYPE_ERROR, "Failed to get key from cfg\n");
 329     end_badly_now ();
 330     return;
 331   }
 332
 333   alice_key = GNUNET_CRYPTO_rsa_key_create_from_file (alice_keyfile);
 334   bob_key = GNUNET_CRYPTO_rsa_key_create_from_file (KEYFILE_BOB);
 335
 336   GNUNET_free(alice_keyfile);
 337
 338   GNUNET_CRYPTO_rsa_key_get_public (alice_key, &alice_pkey);
 339   GNUNET_CRYPTO_rsa_key_get_public (bob_key, &bob_pkey);
 340   GNUNET_CRYPTO_short_hash(&bob_pkey, sizeof(bob_pkey), &bob_hash);
 341
 342   struct GNUNET_NAMESTORE_RecordData rd;
 343   rd.expiration_time = UINT64_MAX;
 344   rd.data_size = sizeof(struct GNUNET_CRYPTO_ShortHashCode);
 345   rd.data = &bob_hash;
 346   rd.record_type = GNUNET_GNS_RECORD_PKEY;
 347   rd.flags = GNUNET_NAMESTORE_RF_AUTHORITY;
 348
 349   GNUNET_NAMESTORE_record_create (namestore_handle,
 350                                   alice_key,
 351                                   TEST_AUTHORITY_NAME,
 352                                   &rd,
 353                                   &put_dht,
 354                                   NULL);
 355 }
 356
 357
 358 int
 359 main (int argc, char *argv[])
 360 {
 361   ok = 1;
 362
 363   GNUNET_log_setup ("test-gns-dht-delegated-lookup",
 364                     "WARNING",
 365                     NULL);
 366   GNUNET_TESTING_peer_run ("test-gns-dht-delegated-lookup", "test_gns_simple_lookup.conf", &do_check, NULL);
 367   return ok;
 368 }
 369
 370
 371 /* end of test_gns_dht_delegated_lookup.c */