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 /* DEFINES */
  36 #define VERBOSE GNUNET_YES
  37
  38 /* Timeout for entire testcase */
  39 #define TIMEOUT GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 20)
  40
  41 /* If number of peers not in config file, use this number */
  42 #define DEFAULT_NUM_PEERS 2
  43
  44 /* test records to resolve */
  45 #define TEST_DOMAIN "www.gads"
  46 #define TEST_DOMAIN_NACK "doesnotexist.bob.gads"
  47 #define TEST_IP "127.0.0.1"
  48 #define TEST_RECORD_NAME "www"
  49 #define TEST_ADDITIONAL_LOOKUPS 5
  50 #define TEST_AUTHORITY_NAME "bob"
  51
  52 #define KEYFILE_BOB "../namestore/zonefiles/HGU0A0VCU334DN7F2I9UIUMVQMM7JMSD142LIMNUGTTV9R0CF4EG.zkey"
  53
  54 /* Globals */
  55
  56 /* Task handle to use to schedule test failure */
  57 GNUNET_SCHEDULER_TaskIdentifier die_task;
  58
  59 /* Global return value (0 for success, anything else for failure) */
  60 static int ok;
  61
  62 static struct GNUNET_NAMESTORE_Handle *namestore_handle;
  63
  64 static struct GNUNET_GNS_Handle *gns_handle;
  65
  66 const struct GNUNET_CONFIGURATION_Handle *cfg;
  67
  68 static unsigned long long max_parallel_lookups;
  69
  70
  71 /**
  72  * Check if the get_handle is being used, if so stop the request.  Either
  73  * way, schedule the end_badly_cont function which actually shuts down the
  74  * test.
  75  */
  76 static void
  77 end_badly (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
  78 {
  79   die_task = GNUNET_SCHEDULER_NO_TASK;
  80   if (NULL != gns_handle)
  81   {
  82     GNUNET_GNS_disconnect(gns_handle);
  83     gns_handle = NULL;
  84   }
  85
  86   if (NULL != namestore_handle)
  87   {
  88     GNUNET_NAMESTORE_disconnect (namestore_handle);
  89     namestore_handle = NULL;
  90   }
  91   GNUNET_break (0);
  92   GNUNET_SCHEDULER_shutdown ();
  93   ok = 1;
  94 }
  95
  96 static void
  97 end_badly_now ()
  98 {
  99   GNUNET_SCHEDULER_cancel (die_task);
 100   die_task = GNUNET_SCHEDULER_add_now (&end_badly, NULL);
 101 }
 102
 103
 104 static void shutdown_task (void *cls,
 105                            const struct GNUNET_SCHEDULER_TaskContext *tc)
 106 {
 107   GNUNET_GNS_disconnect(gns_handle);
 108   GNUNET_log (GNUNET_ERROR_TYPE_INFO, "Shutting down peer!\n");
 109   GNUNET_SCHEDULER_shutdown ();
 110 }
 111 static void
 112 on_lookup_result_dummy(void *cls, uint32_t rd_count,
 113                        const struct GNUNET_NAMESTORE_RecordData *rd)
 114 {
 115   static int replies = 0;
 116   if (GNUNET_SCHEDULER_NO_TASK != die_task)
 117   {
 118       GNUNET_SCHEDULER_cancel (die_task);
 119       die_task = GNUNET_SCHEDULER_add_delayed (TIMEOUT, &end_badly, NULL);
 120   }
 121   if (rd_count != 0)
 122   {
 123     GNUNET_log(GNUNET_ERROR_TYPE_ERROR,
 124                "Got %d results from dummy lookup! Wanted: 0\n",
 125                rd_count);
 126     ok = -1;
 127   }
 128   replies++;
 129   if (replies == (max_parallel_lookups+TEST_ADDITIONAL_LOOKUPS))
 130     GNUNET_SCHEDULER_add_now (&shutdown_task, NULL);
 131   fprintf (stderr, ".");
 132 }
 133
 134
 135 static void
 136 on_lookup_result(void *cls, uint32_t rd_count,
 137                  const struct GNUNET_NAMESTORE_RecordData *rd)
 138 {
 139   struct in_addr a;
 140   int i;
 141   char* addr;
 142
 143   if (GNUNET_SCHEDULER_NO_TASK != die_task)
 144   {
 145       GNUNET_SCHEDULER_cancel (die_task);
 146       die_task = GNUNET_SCHEDULER_NO_TASK;
 147   }
 148
 149   GNUNET_NAMESTORE_disconnect (namestore_handle);
 150   namestore_handle = NULL;
 151   fprintf (stderr, "\n");
 152   if (rd_count == 0)
 153   {
 154     GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
 155                 "Lookup failed, rp_filtering?\n");
 156     ok = 2;
 157   }
 158   else
 159   {
 160     ok = 1;
 161     GNUNET_log (GNUNET_ERROR_TYPE_INFO, "name: %s\n", (char*)cls);
 162     for (i=0; i<rd_count; i++)
 163     {
 164       GNUNET_log (GNUNET_ERROR_TYPE_INFO, "type: %d\n", rd[i].record_type);
 165       if (rd[i].record_type == GNUNET_GNS_RECORD_A)
 166       {
 167         memcpy(&a, rd[i].data, sizeof(a));
 168         addr = inet_ntoa(a);
 169         GNUNET_log (GNUNET_ERROR_TYPE_INFO, "address: %s\n", addr);
 170         if (0 == strcmp(addr, TEST_IP))
 171         {
 172           GNUNET_log (GNUNET_ERROR_TYPE_INFO,
 173                     "%s correctly resolved to %s!\n", TEST_DOMAIN, addr);
 174           ok = 0;
 175         }
 176       }
 177       else
 178       {
 179         GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "No resolution!\n");
 180       }
 181     }
 182   }
 183   GNUNET_SCHEDULER_add_now (&shutdown_task, NULL);
 184 }
 185
 186
 187 /**
 188  * Function scheduled to be run on the successful start of services
 189  * tries to look up the dns record for TEST_DOMAIN
 190  */
 191 static void
 192 commence_testing (void *cls, int32_t success, const char *emsg)
 193 {
 194   int i;
 195   char lookup_name[MAX_DNS_NAME_LENGTH];
 196
 197
 198   gns_handle = GNUNET_GNS_connect(cfg);
 199
 200   if (NULL == gns_handle)
 201   {
 202     GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
 203                 "Failed to connect to GNS!\n");
 204     ok = 2;
 205   }
 206
 207
 208   /* Now lookup some non existing records */
 209   for (i=0; i<max_parallel_lookups+TEST_ADDITIONAL_LOOKUPS; i++)
 210   {
 211     GNUNET_snprintf(lookup_name,
 212                     MAX_DNS_NAME_LENGTH,
 213                     "www.doesnotexist-%d.bob.gads", i);
 214     GNUNET_GNS_lookup(gns_handle, lookup_name, GNUNET_GNS_RECORD_A,
 215                       GNUNET_NO,
 216                       NULL,
 217                       &on_lookup_result_dummy, NULL);
 218   }
 219
 220   GNUNET_GNS_lookup(gns_handle, TEST_DOMAIN, GNUNET_GNS_RECORD_A,
 221                     GNUNET_NO,
 222                     NULL,
 223                     &on_lookup_result, TEST_DOMAIN);
 224 }
 225
 226
 227
 228 static void
 229 do_check (void *cls,
 230           const struct GNUNET_CONFIGURATION_Handle *ccfg,
 231           struct GNUNET_TESTING_Peer *peer)
 232 {
 233   struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded alice_pkey;
 234   struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded bob_pkey;
 235   struct GNUNET_CRYPTO_RsaPrivateKey *alice_key;
 236   struct GNUNET_CRYPTO_RsaPrivateKey *bob_key;
 237   char* alice_keyfile;
 238   struct GNUNET_CRYPTO_ShortHashCode bob_hash;
 239
 240   cfg = ccfg;
 241   die_task = GNUNET_SCHEDULER_add_delayed (TIMEOUT, &end_badly, NULL);
 242
 243
 244   /* put records into namestore */
 245   namestore_handle = GNUNET_NAMESTORE_connect(cfg);
 246   if (NULL == namestore_handle)
 247   {
 248     GNUNET_log(GNUNET_ERROR_TYPE_ERROR, "Failed to connect to namestore\n");
 249     end_badly_now();
 250     return;
 251   }
 252
 253   if (GNUNET_OK != GNUNET_CONFIGURATION_get_value_filename (cfg, "gns",
 254                                                           "ZONEKEY",
 255                                                           &alice_keyfile))
 256   {
 257     GNUNET_log(GNUNET_ERROR_TYPE_ERROR, "Failed to get key from cfg\n");
 258     end_badly_now();
 259     return;
 260   }
 261
 262   if (GNUNET_OK != GNUNET_CONFIGURATION_get_value_number (cfg, "gns",
 263                                              "MAX_PARALLEL_BACKGROUND_QUERIES",
 264                                              &max_parallel_lookups))
 265   {
 266     GNUNET_log(GNUNET_ERROR_TYPE_ERROR, "Failed to get max queries from cfg\n");
 267     end_badly_now();
 268     GNUNET_free (alice_keyfile);
 269     return;
 270   }
 271
 272   alice_key = GNUNET_CRYPTO_rsa_key_create_from_file (alice_keyfile);
 273   bob_key = GNUNET_CRYPTO_rsa_key_create_from_file (KEYFILE_BOB);
 274
 275   GNUNET_CRYPTO_rsa_key_get_public (alice_key, &alice_pkey);
 276   GNUNET_CRYPTO_rsa_key_get_public (bob_key, &bob_pkey);
 277
 278   GNUNET_free(alice_keyfile);
 279
 280   struct GNUNET_NAMESTORE_RecordData rd;
 281   char* ip = TEST_IP;
 282   struct in_addr *web = GNUNET_malloc(sizeof(struct in_addr));
 283   rd.expiration_time = UINT64_MAX;
 284   GNUNET_assert(1 == inet_pton (AF_INET, ip, web));
 285   rd.data_size = sizeof(struct in_addr);
 286   rd.data = web;
 287   rd.record_type = GNUNET_DNSPARSER_TYPE_A;
 288   rd.flags = GNUNET_NAMESTORE_RF_AUTHORITY;
 289
 290   GNUNET_NAMESTORE_record_create (namestore_handle,
 291                                   alice_key,
 292                                   TEST_RECORD_NAME,
 293                                   &rd,
 294                                   NULL,
 295                                   NULL);
 296
 297   GNUNET_CRYPTO_short_hash(&bob_pkey, sizeof(bob_pkey), &bob_hash);
 298   rd.data_size = sizeof(struct GNUNET_CRYPTO_ShortHashCode);
 299   rd.data = &bob_hash;
 300   rd.record_type = GNUNET_GNS_RECORD_PKEY;
 301
 302   GNUNET_NAMESTORE_record_create (namestore_handle,
 303                                   alice_key,
 304                                   TEST_AUTHORITY_NAME,
 305                                   &rd,
 306                                   &commence_testing,
 307                                   NULL);
 308
 309   GNUNET_CRYPTO_rsa_key_free(alice_key);
 310   GNUNET_CRYPTO_rsa_key_free(bob_key);
 311   GNUNET_free(web);
 312
 313 }
 314
 315
 316 int
 317 main (int argc, char *argv[])
 318 {
 319   ok = 1;
 320
 321   GNUNET_log_setup ("test-gns-max-queries",
 322 #if VERBOSE
 323                     "DEBUG",
 324 #else
 325                     "WARNING",
 326 #endif
 327                     NULL);
 328   GNUNET_TESTING_peer_run ("test-gns-max-queries", "test_gns_simple_lookup.conf", &do_check, NULL);
 329   return ok;
 330 }
 331
 332
 333 /* end of test_gns_simple_zkey_lookup.c */