src/gns/test_gns_max_queries.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_max_queries.c
  22  * @brief base testcase for testing GNS background queries
  23  * in particular query replacement and clean shutdown
  24  */
  25 #include "platform.h"
  26 #include "gnunet_testing_lib-new.h"
  27 #include "gnunet_core_service.h"
  28 #include "block_dns.h"
  29 #include "gns.h"
  30 #include "gnunet_signatures.h"
  31 #include "gnunet_namestore_service.h"
  32 #include "gnunet_dnsparser_lib.h"
  33 #include "gnunet_gns_service.h"
  34
  35
  36 /* Timeout for entire testcase */
  37 #define TIMEOUT GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 20)
  38
  39 /* If number of peers not in config file, use this number */
  40 #define DEFAULT_NUM_PEERS 2
  41
  42 /* test records to resolve */
  43 #define TEST_DOMAIN "www.gads"
  44 #define TEST_DOMAIN_NACK "doesnotexist.bob.gads"
  45 #define TEST_IP "127.0.0.1"
  46 #define TEST_RECORD_NAME "www"
  47 #define TEST_ADDITIONAL_LOOKUPS 5
  48 #define TEST_AUTHORITY_NAME "bob"
  49
  50 #define KEYFILE_BOB "../namestore/zonefiles/HGU0A0VCU334DN7F2I9UIUMVQMM7JMSD142LIMNUGTTV9R0CF4EG.zkey"
  51
  52 /* Globals */
  53
  54 /* Task handle to use to schedule test failure */
  55 static GNUNET_SCHEDULER_TaskIdentifier die_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 const struct GNUNET_CONFIGURATION_Handle *cfg;
  65
  66 static unsigned long long max_parallel_lookups;
  67
  68 static struct GNUNET_GNS_LookupRequest **requests;
  69
  70 static unsigned int num_requests;
  71
  72
  73 /**
  74  * Check if the get_handle is being used, if so stop the request.  Either
  75  * way, schedule the end_badly_cont function which actually shuts down the
  76  * test.
  77  */
  78 static void
  79 end_badly (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
  80 {
  81   unsigned int i;
  82
  83   for (i=0;i<num_requests;i++)
  84     if (NULL != requests[i])
  85       GNUNET_GNS_cancel_lookup_request (requests[i]);
  86   die_task = GNUNET_SCHEDULER_NO_TASK;
  87   if (NULL != gns_handle)
  88   {
  89     GNUNET_GNS_disconnect(gns_handle);
  90     gns_handle = NULL;
  91   }
  92   if (NULL != namestore_handle)
  93   {
  94     GNUNET_NAMESTORE_disconnect (namestore_handle);
  95     namestore_handle = NULL;
  96   }
  97   GNUNET_break (0);
  98   GNUNET_SCHEDULER_shutdown ();
  99   GNUNET_free (requests);
 100   ok = 1;
 101 }
 102
 103
 104 static void
 105 shutdown_task (void *cls,
 106                const struct GNUNET_SCHEDULER_TaskContext *tc)
 107 {
 108   unsigned int i;
 109
 110   if (GNUNET_SCHEDULER_NO_TASK != die_task)
 111   {
 112       GNUNET_SCHEDULER_cancel (die_task);
 113       die_task = GNUNET_SCHEDULER_NO_TASK;
 114   }
 115   for (i=0;i<num_requests;i++)
 116     if (NULL != requests[i])
 117       GNUNET_GNS_cancel_lookup_request (requests[i]);
 118   if (NULL != gns_handle)
 119   {
 120     GNUNET_GNS_disconnect (gns_handle);
 121     gns_handle = NULL;
 122   }
 123   if (NULL != namestore_handle)
 124   {
 125     GNUNET_NAMESTORE_disconnect (namestore_handle);
 126     namestore_handle = NULL;
 127   }
 128   GNUNET_log (GNUNET_ERROR_TYPE_INFO, "Shutting down peer!\n");
 129   GNUNET_SCHEDULER_shutdown ();
 130   GNUNET_free (requests);
 131 }
 132
 133
 134 static void
 135 on_lookup_result_dummy (void *cls, uint32_t rd_count,
 136                         const struct GNUNET_NAMESTORE_RecordData *rd)
 137 {
 138   struct GNUNET_GNS_LookupRequest **request = cls;
 139   static int replies = 0;
 140
 141   *request = NULL;
 142   if (GNUNET_SCHEDULER_NO_TASK != die_task)
 143   {
 144       GNUNET_SCHEDULER_cancel (die_task);
 145       die_task = GNUNET_SCHEDULER_add_delayed (TIMEOUT, &end_badly, NULL);
 146   }
 147   if (rd_count != 0)
 148   {
 149     GNUNET_log(GNUNET_ERROR_TYPE_ERROR,
 150                "Got %d results from dummy lookup! Wanted: 0\n",
 151                rd_count);
 152     ok = -1;
 153   }
 154   replies++;
 155   fprintf (stderr, ".");
 156 }
 157
 158
 159 static void
 160 on_lookup_result (void *cls, uint32_t rd_count,
 161                   const struct GNUNET_NAMESTORE_RecordData *rd)
 162 {
 163   struct in_addr a;
 164   int i;
 165   char* addr;
 166
 167   requests[max_parallel_lookups + TEST_ADDITIONAL_LOOKUPS] = NULL;
 168   if (GNUNET_SCHEDULER_NO_TASK != die_task)
 169   {
 170       GNUNET_SCHEDULER_cancel (die_task);
 171       die_task = GNUNET_SCHEDULER_NO_TASK;
 172   }
 173
 174   GNUNET_NAMESTORE_disconnect (namestore_handle);
 175   namestore_handle = NULL;
 176   fprintf (stderr, "\n");
 177   if (rd_count == 0)
 178   {
 179     GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
 180                 "Lookup failed, rp_filtering?\n");
 181     ok = 2;
 182   }
 183   else
 184   {
 185     ok = 1;
 186     GNUNET_log (GNUNET_ERROR_TYPE_INFO, "name: %s\n", (char*)cls);
 187     for (i=0; i<rd_count; i++)
 188     {
 189       GNUNET_log (GNUNET_ERROR_TYPE_INFO, "type: %d\n", rd[i].record_type);
 190       if (rd[i].record_type == GNUNET_GNS_RECORD_A)
 191       {
 192         memcpy(&a, rd[i].data, sizeof(a));
 193         addr = inet_ntoa(a);
 194         GNUNET_log (GNUNET_ERROR_TYPE_INFO, "address: %s\n", addr);
 195         if (0 == strcmp(addr, TEST_IP))
 196         {
 197           GNUNET_log (GNUNET_ERROR_TYPE_INFO,
 198                     "%s correctly resolved to %s!\n", TEST_DOMAIN, addr);
 199           ok = 0;
 200         }
 201       }
 202       else
 203       {
 204         GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "No resolution!\n");
 205       }
 206     }
 207   }
 208   GNUNET_SCHEDULER_add_now (&shutdown_task, NULL);
 209 }
 210
 211
 212 /**
 213  * Function scheduled to be run on the successful start of services
 214  * tries to look up the dns record for TEST_DOMAIN
 215  */
 216 static void
 217 commence_testing (void *cls, int32_t success, const char *emsg)
 218 {
 219   int i;
 220   char lookup_name[MAX_DNS_NAME_LENGTH];
 221   struct GNUNET_GNS_LookupRequest *lr;
 222
 223   gns_handle = GNUNET_GNS_connect(cfg);
 224
 225   if (NULL == gns_handle)
 226   {
 227     GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
 228                 "Failed to connect to GNS!\n");
 229     ok = 2;
 230   }
 231
 232
 233   /* Now lookup some non existing records */
 234   for (i=0; i<max_parallel_lookups+TEST_ADDITIONAL_LOOKUPS; i++)
 235   {
 236     GNUNET_snprintf(lookup_name,
 237                     MAX_DNS_NAME_LENGTH,
 238                     "www.doesnotexist-%d.bob.gads", i);
 239     lr = GNUNET_GNS_lookup (gns_handle, lookup_name, GNUNET_GNS_RECORD_A,
 240                             GNUNET_NO,
 241                             NULL,
 242                             &on_lookup_result_dummy, &requests[num_requests]);
 243     requests[num_requests++] = lr;
 244   }
 245   lr = GNUNET_GNS_lookup (gns_handle, TEST_DOMAIN, GNUNET_GNS_RECORD_A,
 246                           GNUNET_NO,
 247                           NULL,
 248                           &on_lookup_result, TEST_DOMAIN);
 249   requests[num_requests++] = lr;
 250   GNUNET_assert (num_requests == max_parallel_lookups + TEST_ADDITIONAL_LOOKUPS + 1);
 251 }
 252
 253
 254
 255 static void
 256 do_check (void *cls,
 257           const struct GNUNET_CONFIGURATION_Handle *ccfg,
 258           struct GNUNET_TESTING_Peer *peer)
 259 {
 260   struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded alice_pkey;
 261   struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded bob_pkey;
 262   struct GNUNET_CRYPTO_RsaPrivateKey *alice_key;
 263   struct GNUNET_CRYPTO_RsaPrivateKey *bob_key;
 264   char* alice_keyfile;
 265   struct GNUNET_CRYPTO_ShortHashCode bob_hash;
 266
 267   cfg = ccfg;
 268   die_task = GNUNET_SCHEDULER_add_delayed (TIMEOUT, &end_badly, NULL);
 269
 270
 271   /* put records into namestore */
 272   namestore_handle = GNUNET_NAMESTORE_connect(cfg);
 273   if (NULL == namestore_handle)
 274   {
 275     GNUNET_log(GNUNET_ERROR_TYPE_ERROR, "Failed to connect to namestore\n");
 276     GNUNET_SCHEDULER_shutdown ();
 277     return;
 278   }
 279
 280   if (GNUNET_OK != GNUNET_CONFIGURATION_get_value_filename (cfg, "gns",
 281                                                           "ZONEKEY",
 282                                                           &alice_keyfile))
 283   {
 284     GNUNET_log(GNUNET_ERROR_TYPE_ERROR, "Failed to get key from cfg\n");
 285     GNUNET_SCHEDULER_shutdown ();
 286     return;
 287   }
 288
 289   if (GNUNET_OK != GNUNET_CONFIGURATION_get_value_number (cfg, "gns",
 290                                                           "MAX_PARALLEL_BACKGROUND_QUERIES",
 291                                                           &max_parallel_lookups))
 292   {
 293     GNUNET_log(GNUNET_ERROR_TYPE_ERROR, "Failed to get max queries from cfg\n");
 294     GNUNET_SCHEDULER_shutdown ();
 295     GNUNET_free (alice_keyfile);
 296     return;
 297   }
 298   requests = GNUNET_malloc ((max_parallel_lookups + TEST_ADDITIONAL_LOOKUPS + 1) *
 299                             sizeof (struct GNUNET_GNS_LookupRequest *));
 300   alice_key = GNUNET_CRYPTO_rsa_key_create_from_file (alice_keyfile);
 301   bob_key = GNUNET_CRYPTO_rsa_key_create_from_file (KEYFILE_BOB);
 302
 303   GNUNET_CRYPTO_rsa_key_get_public (alice_key, &alice_pkey);
 304   GNUNET_CRYPTO_rsa_key_get_public (bob_key, &bob_pkey);
 305
 306   GNUNET_free(alice_keyfile);
 307
 308   struct GNUNET_NAMESTORE_RecordData rd;
 309   char* ip = TEST_IP;
 310   struct in_addr *web = GNUNET_malloc(sizeof(struct in_addr));
 311   rd.expiration_time = UINT64_MAX;
 312   GNUNET_assert(1 == inet_pton (AF_INET, ip, web));
 313   rd.data_size = sizeof(struct in_addr);
 314   rd.data = web;
 315   rd.record_type = GNUNET_DNSPARSER_TYPE_A;
 316   rd.flags = GNUNET_NAMESTORE_RF_AUTHORITY;
 317
 318   GNUNET_NAMESTORE_record_create (namestore_handle,
 319                                   alice_key,
 320                                   TEST_RECORD_NAME,
 321                                   &rd,
 322                                   NULL,
 323                                   NULL);
 324
 325   GNUNET_CRYPTO_short_hash(&bob_pkey, sizeof(bob_pkey), &bob_hash);
 326   rd.data_size = sizeof(struct GNUNET_CRYPTO_ShortHashCode);
 327   rd.data = &bob_hash;
 328   rd.record_type = GNUNET_GNS_RECORD_PKEY;
 329
 330   GNUNET_NAMESTORE_record_create (namestore_handle,
 331                                   alice_key,
 332                                   TEST_AUTHORITY_NAME,
 333                                   &rd,
 334                                   &commence_testing,
 335                                   NULL);
 336
 337   GNUNET_CRYPTO_rsa_key_free(alice_key);
 338   GNUNET_CRYPTO_rsa_key_free(bob_key);
 339   GNUNET_free(web);
 340
 341 }
 342
 343
 344 int
 345 main (int argc, char *argv[])
 346 {
 347   ok = 1;
 348
 349   GNUNET_log_setup ("test-gns-max-queries",
 350                     "WARNING",
 351                     NULL);
 352   GNUNET_TESTING_peer_run ("test-gns-max-queries", "test_gns_simple_lookup.conf", &do_check, NULL);
 353   return ok;
 354 }
 355
 356
 357 /* end of test_gns_simple_zkey_lookup.c */