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.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, 5)
  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.gnunet"
  46 #define TEST_DOMAIN_NACK "doesnotexist.bob.gnunet"
  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 /* Globals */
  53
  54 /**
  55  * Directory to store temp data in, defined in config file
  56  */
  57 static char *test_directory;
  58
  59 struct GNUNET_TESTING_Daemon *d1;
  60
  61
  62 /* Task handle to use to schedule test failure */
  63 GNUNET_SCHEDULER_TaskIdentifier die_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 const struct GNUNET_CONFIGURATION_Handle *cfg;
  73
  74 static unsigned long long max_parallel_lookups;
  75
  76 /**
  77  * Check whether peers successfully shut down.
  78  */
  79 void
  80 shutdown_callback (void *cls, const char *emsg)
  81 {
  82   if (emsg != NULL)
  83   {
  84     GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Error on shutdown! ret=%d\n", ok);
  85     if (ok == 0)
  86       ok = 2;
  87   }
  88
  89   GNUNET_log (GNUNET_ERROR_TYPE_INFO, "done(ret=%d)!\n", ok);
  90 }
  91
  92 static void
  93 on_lookup_result_dummy(void *cls, uint32_t rd_count,
  94                        const struct GNUNET_NAMESTORE_RecordData *rd)
  95 {
  96   if (rd_count != 0)
  97   {
  98     GNUNET_log(GNUNET_ERROR_TYPE_ERROR,
  99                "Got %d results from dummy lookup! Wanted: 0\n",
 100                rd_count);
 101     ok = -1;
 102   }
 103 }
 104
 105 static void
 106 on_lookup_result(void *cls, uint32_t rd_count,
 107                  const struct GNUNET_NAMESTORE_RecordData *rd)
 108 {
 109   struct in_addr a;
 110   int i;
 111   char* addr;
 112
 113   if (rd_count == 0)
 114   {
 115     GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
 116                 "Lookup failed, rp_filtering?\n");
 117     ok = 2;
 118   }
 119   else
 120   {
 121     ok = 1;
 122     GNUNET_log (GNUNET_ERROR_TYPE_INFO, "name: %s\n", (char*)cls);
 123     for (i=0; i<rd_count; i++)
 124     {
 125       GNUNET_log (GNUNET_ERROR_TYPE_INFO, "type: %d\n", rd[i].record_type);
 126       if (rd[i].record_type == GNUNET_GNS_RECORD_TYPE_A)
 127       {
 128         memcpy(&a, rd[i].data, sizeof(a));
 129         addr = inet_ntoa(a);
 130         GNUNET_log (GNUNET_ERROR_TYPE_INFO, "address: %s\n", addr);
 131         if (0 == strcmp(addr, TEST_IP))
 132         {
 133           GNUNET_log (GNUNET_ERROR_TYPE_INFO,
 134                     "%s correctly resolved to %s!\n", TEST_DOMAIN, addr);
 135           ok = 0;
 136         }
 137       }
 138       else
 139       {
 140         GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "No resolution!\n");
 141       }
 142     }
 143   }
 144   GNUNET_GNS_disconnect(gns_handle);
 145   GNUNET_log (GNUNET_ERROR_TYPE_INFO, "Shutting down peer1!\n");
 146   GNUNET_TESTING_daemon_stop (d1, TIMEOUT, &shutdown_callback, NULL,
 147                               GNUNET_YES, GNUNET_NO);
 148 }
 149
 150
 151 /**
 152  * Function scheduled to be run on the successful start of services
 153  * tries to look up the dns record for TEST_DOMAIN
 154  */
 155 static void
 156 commence_testing (void *cls, int32_t success, const char *emsg)
 157 {
 158   int i;
 159   char lookup_name[MAX_DNS_NAME_LENGTH];
 160
 161   GNUNET_NAMESTORE_disconnect(namestore_handle, GNUNET_YES);
 162
 163   gns_handle = GNUNET_GNS_connect(cfg);
 164
 165   if (NULL == gns_handle)
 166   {
 167     GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
 168                 "Failed to connect to GNS!\n");
 169     ok = 2;
 170   }
 171
 172   GNUNET_GNS_lookup(gns_handle, TEST_DOMAIN, GNUNET_GNS_RECORD_TYPE_A,
 173                     &on_lookup_result, TEST_DOMAIN);
 174
 175   /* Now lookup some non existing records */
 176   for (i=0; i<max_parallel_lookups+TEST_ADDITIONAL_LOOKUPS; i++)
 177   {
 178     GNUNET_snprintf(lookup_name,
 179                     MAX_DNS_NAME_LENGTH,
 180                     "doesnotexist-%d.bob.gnunet", i);
 181     GNUNET_GNS_lookup(gns_handle, lookup_name, GNUNET_GNS_RECORD_TYPE_A,
 182                       &on_lookup_result_dummy, NULL);
 183   }
 184 }
 185
 186
 187 /**
 188  * Continuation for the GNUNET_DHT_get_stop call, so that we don't shut
 189  * down the peers without freeing memory associated with GET request.
 190  */
 191 static void
 192 end_badly_cont (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
 193 {
 194
 195   if (d1 != NULL)
 196     GNUNET_TESTING_daemon_stop (d1, TIMEOUT, &shutdown_callback, NULL,
 197                                 GNUNET_YES, GNUNET_NO);
 198   GNUNET_SCHEDULER_cancel (die_task);
 199 }
 200
 201 /**
 202  * Check if the get_handle is being used, if so stop the request.  Either
 203  * way, schedule the end_badly_cont function which actually shuts down the
 204  * test.
 205  */
 206 static void
 207 end_badly (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
 208 {
 209   GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Failing test with error: `%s'!\n",
 210               (char *) cls);
 211   GNUNET_SCHEDULER_add_now (&end_badly_cont, NULL);
 212   ok = 1;
 213 }
 214
 215 static void
 216 do_lookup(void *cls, const struct GNUNET_PeerIdentity *id,
 217           const struct GNUNET_CONFIGURATION_Handle *cfg,
 218           struct GNUNET_TESTING_Daemon *d, const char *emsg)
 219 {
 220   struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded alice_pkey;
 221   struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded bob_pkey;
 222   struct GNUNET_CRYPTO_RsaPrivateKey *alice_key;
 223   struct GNUNET_CRYPTO_RsaPrivateKey *bob_key;
 224   char* alice_keyfile;
 225   struct GNUNET_CRYPTO_ShortHashCode bob_hash;
 226
 227   GNUNET_SCHEDULER_cancel (die_task);
 228
 229   /* put records into namestore */
 230   namestore_handle = GNUNET_NAMESTORE_connect(cfg);
 231   if (NULL == namestore_handle)
 232   {
 233     GNUNET_log(GNUNET_ERROR_TYPE_ERROR, "Failed to connect to namestore\n");
 234     ok = -1;
 235     return;
 236   }
 237
 238   if (GNUNET_OK != GNUNET_CONFIGURATION_get_value_filename (cfg, "gns",
 239                                                           "ZONEKEY",
 240                                                           &alice_keyfile))
 241   {
 242     GNUNET_log(GNUNET_ERROR_TYPE_ERROR, "Failed to get key from cfg\n");
 243     ok = -1;
 244     return;
 245   }
 246
 247   if (GNUNET_OK != GNUNET_CONFIGURATION_get_value_number (cfg, "gns",
 248                                              "MAX_PARALLEL_BACKGROUND_QUERIES",
 249                                              &max_parallel_lookups))
 250   {
 251     GNUNET_log(GNUNET_ERROR_TYPE_ERROR, "Failed to get max queries from cfg\n");
 252     ok = -1;
 253     return;
 254   }
 255
 256   alice_key = GNUNET_CRYPTO_rsa_key_create_from_file (alice_keyfile);
 257   bob_key = GNUNET_CRYPTO_rsa_key_create ();
 258
 259   GNUNET_CRYPTO_rsa_key_get_public (alice_key, &alice_pkey);
 260   GNUNET_CRYPTO_rsa_key_get_public (bob_key, &bob_pkey);
 261
 262   GNUNET_free(alice_keyfile);
 263
 264   struct GNUNET_NAMESTORE_RecordData rd;
 265   char* ip = TEST_IP;
 266   struct in_addr *web = GNUNET_malloc(sizeof(struct in_addr));
 267   rd.expiration = GNUNET_TIME_absolute_get_forever ();
 268   GNUNET_assert(1 == inet_pton (AF_INET, ip, web));
 269   rd.data_size = sizeof(struct in_addr);
 270   rd.data = web;
 271   rd.record_type = GNUNET_DNSPARSER_TYPE_A;
 272
 273   GNUNET_NAMESTORE_record_create (namestore_handle,
 274                                   alice_key,
 275                                   TEST_RECORD_NAME,
 276                                   &rd,
 277                                   NULL,
 278                                   NULL);
 279
 280   GNUNET_CRYPTO_short_hash(&bob_pkey, sizeof(bob_pkey), &bob_hash);
 281   rd.data_size = sizeof(struct GNUNET_CRYPTO_ShortHashCode);
 282   rd.data = &bob_hash;
 283   rd.record_type = GNUNET_GNS_RECORD_PKEY;
 284
 285   GNUNET_NAMESTORE_record_create (namestore_handle,
 286                                   alice_key,
 287                                   TEST_AUTHORITY_NAME,
 288                                   &rd,
 289                                   &commence_testing,
 290                                   NULL);
 291
 292   GNUNET_CRYPTO_rsa_key_free(alice_key);
 293   GNUNET_CRYPTO_rsa_key_free(bob_key);
 294   GNUNET_free(web);
 295
 296 }
 297
 298 static void
 299 run (void *cls, char *const *args, const char *cfgfile,
 300      const struct GNUNET_CONFIGURATION_Handle *c)
 301 {
 302   cfg = c;
 303    /* Get path from configuration file */
 304   if (GNUNET_YES !=
 305       GNUNET_CONFIGURATION_get_value_string (cfg, "paths", "servicehome",
 306                                              &test_directory))
 307   {
 308     ok = 404;
 309     return;
 310   }
 311
 312
 313   /* Set up a task to end testing if peer start fails */
 314   die_task =
 315       GNUNET_SCHEDULER_add_delayed (TIMEOUT, &end_badly,
 316                                     "didn't start all daemons in reasonable amount of time!!!");
 317
 318   /* Start alice */
 319   d1 = GNUNET_TESTING_daemon_start(cfg, TIMEOUT, GNUNET_NO, NULL, NULL, 0,
 320                                    NULL, NULL, NULL, &do_lookup, NULL);
 321 }
 322
 323 static int
 324 check ()
 325 {
 326   int ret;
 327
 328   /* Arguments for GNUNET_PROGRAM_run */
 329   char *const argv[] = { "test-gns-max-queries", /* Name to give running binary */
 330     "-c",
 331     "test_gns_simple_lookup.conf",       /* Config file to use */
 332 #if VERBOSE
 333     "-L", "DEBUG",
 334 #endif
 335     NULL
 336   };
 337   struct GNUNET_GETOPT_CommandLineOption options[] = {
 338     GNUNET_GETOPT_OPTION_END
 339   };
 340   /* Run the run function as a new program */
 341   ret =
 342       GNUNET_PROGRAM_run ((sizeof (argv) / sizeof (char *)) - 1, argv,
 343                           "test-gns-max-queries", "nohelp", options, &run,
 344                           &ok);
 345   if (ret != GNUNET_OK)
 346   {
 347     GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
 348                 "`test-gns-simple-lookup': Failed with error code %d\n", ret);
 349   }
 350   return ok;
 351 }
 352
 353 int
 354 main (int argc, char *argv[])
 355 {
 356   int ret;
 357
 358   GNUNET_log_setup ("test-gns-simple-lookup",
 359 #if VERBOSE
 360                     "DEBUG",
 361 #else
 362                     "WARNING",
 363 #endif
 364                     NULL);
 365   ret = check ();
 366   /**
 367    * Need to remove base directory, subdirectories taken care
 368    * of by the testing framework.
 369    */
 370   return ret;
 371 }
 372
 373 /* end of test_gns_twopeer.c */