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, 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.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 #define KEYFILE_BOB "../namestore/zonefiles/HGU0A0VCU334DN7F2I9UIUMVQMM7JMSD142LIMNUGTTV9R0CF4EG.zkey"
  53
  54 /* Globals */
  55
  56 /**
  57  * Directory to store temp data in, defined in config file
  58  */
  59 static char *test_directory;
  60
  61 struct GNUNET_TESTING_Daemon *d1;
  62
  63
  64 /* Task handle to use to schedule test failure */
  65 GNUNET_SCHEDULER_TaskIdentifier die_task;
  66
  67 /* Global return value (0 for success, anything else for failure) */
  68 static int ok;
  69
  70 static struct GNUNET_NAMESTORE_Handle *namestore_handle;
  71
  72 static struct GNUNET_GNS_Handle *gns_handle;
  73
  74 const struct GNUNET_CONFIGURATION_Handle *cfg;
  75
  76 static unsigned long long max_parallel_lookups;
  77
  78 /**
  79  * Check whether peers successfully shut down.
  80  */
  81 void
  82 shutdown_callback (void *cls, const char *emsg)
  83 {
  84   if (emsg != NULL)
  85   {
  86     GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Error on shutdown! ret=%d\n", ok);
  87     if (ok == 0)
  88       ok = 2;
  89   }
  90
  91   GNUNET_log (GNUNET_ERROR_TYPE_INFO, "done(ret=%d)!\n", ok);
  92 }
  93
  94 static void
  95 on_lookup_result_dummy(void *cls, uint32_t rd_count,
  96                        const struct GNUNET_NAMESTORE_RecordData *rd)
  97 {
  98   if (rd_count != 0)
  99   {
 100     GNUNET_log(GNUNET_ERROR_TYPE_ERROR,
 101                "Got %d results from dummy lookup! Wanted: 0\n",
 102                rd_count);
 103     ok = -1;
 104   }
 105 }
 106
 107 static void
 108 on_lookup_result(void *cls, uint32_t rd_count,
 109                  const struct GNUNET_NAMESTORE_RecordData *rd)
 110 {
 111   struct in_addr a;
 112   int i;
 113   char* addr;
 114
 115   if (rd_count == 0)
 116   {
 117     GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
 118                 "Lookup failed, rp_filtering?\n");
 119     ok = 2;
 120   }
 121   else
 122   {
 123     ok = 1;
 124     GNUNET_log (GNUNET_ERROR_TYPE_INFO, "name: %s\n", (char*)cls);
 125     for (i=0; i<rd_count; i++)
 126     {
 127       GNUNET_log (GNUNET_ERROR_TYPE_INFO, "type: %d\n", rd[i].record_type);
 128       if (rd[i].record_type == GNUNET_GNS_RECORD_TYPE_A)
 129       {
 130         memcpy(&a, rd[i].data, sizeof(a));
 131         addr = inet_ntoa(a);
 132         GNUNET_log (GNUNET_ERROR_TYPE_INFO, "address: %s\n", addr);
 133         if (0 == strcmp(addr, TEST_IP))
 134         {
 135           GNUNET_log (GNUNET_ERROR_TYPE_INFO,
 136                     "%s correctly resolved to %s!\n", TEST_DOMAIN, addr);
 137           ok = 0;
 138         }
 139       }
 140       else
 141       {
 142         GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "No resolution!\n");
 143       }
 144     }
 145   }
 146   GNUNET_GNS_disconnect(gns_handle);
 147   GNUNET_log (GNUNET_ERROR_TYPE_INFO, "Shutting down peer1!\n");
 148   GNUNET_TESTING_daemon_stop (d1, TIMEOUT, &shutdown_callback, NULL,
 149                               GNUNET_YES, GNUNET_NO);
 150 }
 151
 152
 153 /**
 154  * Function scheduled to be run on the successful start of services
 155  * tries to look up the dns record for TEST_DOMAIN
 156  */
 157 static void
 158 commence_testing (void *cls, int32_t success, const char *emsg)
 159 {
 160   int i;
 161   char lookup_name[MAX_DNS_NAME_LENGTH];
 162
 163   GNUNET_NAMESTORE_disconnect(namestore_handle, GNUNET_YES);
 164
 165   gns_handle = GNUNET_GNS_connect(cfg);
 166
 167   if (NULL == gns_handle)
 168   {
 169     GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
 170                 "Failed to connect to GNS!\n");
 171     ok = 2;
 172   }
 173
 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                     "www.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   GNUNET_GNS_lookup(gns_handle, TEST_DOMAIN, GNUNET_GNS_RECORD_TYPE_A,
 186                     &on_lookup_result, TEST_DOMAIN);
 187 }
 188
 189
 190 /**
 191  * Continuation for the GNUNET_DHT_get_stop call, so that we don't shut
 192  * down the peers without freeing memory associated with GET request.
 193  */
 194 static void
 195 end_badly_cont (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
 196 {
 197
 198   if (d1 != NULL)
 199     GNUNET_TESTING_daemon_stop (d1, TIMEOUT, &shutdown_callback, NULL,
 200                                 GNUNET_YES, GNUNET_NO);
 201   GNUNET_SCHEDULER_cancel (die_task);
 202 }
 203
 204 /**
 205  * Check if the get_handle is being used, if so stop the request.  Either
 206  * way, schedule the end_badly_cont function which actually shuts down the
 207  * test.
 208  */
 209 static void
 210 end_badly (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
 211 {
 212   GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Failing test with error: `%s'!\n",
 213               (char *) cls);
 214   GNUNET_SCHEDULER_add_now (&end_badly_cont, NULL);
 215   ok = 1;
 216 }
 217
 218 static void
 219 do_lookup(void *cls, const struct GNUNET_PeerIdentity *id,
 220           const struct GNUNET_CONFIGURATION_Handle *cfg,
 221           struct GNUNET_TESTING_Daemon *d, const char *emsg)
 222 {
 223   struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded alice_pkey;
 224   struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded bob_pkey;
 225   struct GNUNET_CRYPTO_RsaPrivateKey *alice_key;
 226   struct GNUNET_CRYPTO_RsaPrivateKey *bob_key;
 227   char* alice_keyfile;
 228   struct GNUNET_CRYPTO_ShortHashCode bob_hash;
 229
 230   GNUNET_SCHEDULER_cancel (die_task);
 231
 232   /* put records into namestore */
 233   namestore_handle = GNUNET_NAMESTORE_connect(cfg);
 234   if (NULL == namestore_handle)
 235   {
 236     GNUNET_log(GNUNET_ERROR_TYPE_ERROR, "Failed to connect to namestore\n");
 237     ok = -1;
 238     return;
 239   }
 240
 241   if (GNUNET_OK != GNUNET_CONFIGURATION_get_value_filename (cfg, "gns",
 242                                                           "ZONEKEY",
 243                                                           &alice_keyfile))
 244   {
 245     GNUNET_log(GNUNET_ERROR_TYPE_ERROR, "Failed to get key from cfg\n");
 246     ok = -1;
 247     return;
 248   }
 249
 250   if (GNUNET_OK != GNUNET_CONFIGURATION_get_value_number (cfg, "gns",
 251                                              "MAX_PARALLEL_BACKGROUND_QUERIES",
 252                                              &max_parallel_lookups))
 253   {
 254     GNUNET_log(GNUNET_ERROR_TYPE_ERROR, "Failed to get max queries from cfg\n");
 255     ok = -1;
 256     GNUNET_free (alice_keyfile);
 257     return;
 258   }
 259
 260   alice_key = GNUNET_CRYPTO_rsa_key_create_from_file (alice_keyfile);
 261   bob_key = GNUNET_CRYPTO_rsa_key_create_from_file (KEYFILE_BOB);
 262
 263   GNUNET_CRYPTO_rsa_key_get_public (alice_key, &alice_pkey);
 264   GNUNET_CRYPTO_rsa_key_get_public (bob_key, &bob_pkey);
 265
 266   GNUNET_free(alice_keyfile);
 267
 268   struct GNUNET_NAMESTORE_RecordData rd;
 269   char* ip = TEST_IP;
 270   struct in_addr *web = GNUNET_malloc(sizeof(struct in_addr));
 271   rd.expiration = GNUNET_TIME_absolute_get_forever ();
 272   GNUNET_assert(1 == inet_pton (AF_INET, ip, web));
 273   rd.data_size = sizeof(struct in_addr);
 274   rd.data = web;
 275   rd.record_type = GNUNET_DNSPARSER_TYPE_A;
 276
 277   GNUNET_NAMESTORE_record_create (namestore_handle,
 278                                   alice_key,
 279                                   TEST_RECORD_NAME,
 280                                   &rd,
 281                                   NULL,
 282                                   NULL);
 283
 284   GNUNET_CRYPTO_short_hash(&bob_pkey, sizeof(bob_pkey), &bob_hash);
 285   rd.data_size = sizeof(struct GNUNET_CRYPTO_ShortHashCode);
 286   rd.data = &bob_hash;
 287   rd.record_type = GNUNET_GNS_RECORD_PKEY;
 288
 289   GNUNET_NAMESTORE_record_create (namestore_handle,
 290                                   alice_key,
 291                                   TEST_AUTHORITY_NAME,
 292                                   &rd,
 293                                   &commence_testing,
 294                                   NULL);
 295
 296   GNUNET_CRYPTO_rsa_key_free(alice_key);
 297   GNUNET_CRYPTO_rsa_key_free(bob_key);
 298   GNUNET_free(web);
 299
 300 }
 301
 302 static void
 303 run (void *cls, char *const *args, const char *cfgfile,
 304      const struct GNUNET_CONFIGURATION_Handle *c)
 305 {
 306   cfg = c;
 307    /* Get path from configuration file */
 308   if (GNUNET_YES !=
 309       GNUNET_CONFIGURATION_get_value_string (cfg, "paths", "servicehome",
 310                                              &test_directory))
 311   {
 312     ok = 404;
 313     return;
 314   }
 315
 316
 317   /* Set up a task to end testing if peer start fails */
 318   die_task =
 319       GNUNET_SCHEDULER_add_delayed (TIMEOUT, &end_badly,
 320                                     "didn't start all daemons in reasonable amount of time!!!");
 321
 322   /* Start alice */
 323   d1 = GNUNET_TESTING_daemon_start(cfg, TIMEOUT, GNUNET_NO, NULL, NULL, 0,
 324                                    NULL, NULL, NULL, &do_lookup, NULL);
 325 }
 326
 327 static int
 328 check ()
 329 {
 330   int ret;
 331
 332   /* Arguments for GNUNET_PROGRAM_run */
 333   char *const argv[] = { "test-gns-max-queries", /* Name to give running binary */
 334     "-c",
 335     "test_gns_simple_lookup.conf",       /* Config file to use */
 336 #if VERBOSE
 337     "-L", "DEBUG",
 338 #endif
 339     NULL
 340   };
 341   struct GNUNET_GETOPT_CommandLineOption options[] = {
 342     GNUNET_GETOPT_OPTION_END
 343   };
 344   /* Run the run function as a new program */
 345   ret =
 346       GNUNET_PROGRAM_run ((sizeof (argv) / sizeof (char *)) - 1, argv,
 347                           "test-gns-max-queries", "nohelp", options, &run,
 348                           &ok);
 349   if (ret != GNUNET_OK)
 350   {
 351     GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
 352                 "`test-gns-simple-lookup': Failed with error code %d\n", ret);
 353   }
 354   return ok;
 355 }
 356
 357 int
 358 main (int argc, char *argv[])
 359 {
 360   int ret;
 361
 362   GNUNET_log_setup ("test-gns-simple-lookup",
 363 #if VERBOSE
 364                     "DEBUG",
 365 #else
 366                     "WARNING",
 367 #endif
 368                     NULL);
 369   ret = check ();
 370   /**
 371    * Need to remove base directory, subdirectories taken care
 372    * of by the testing framework.
 373    */
 374   return ret;
 375 }
 376
 377 /* end of test_gns_twopeer.c */