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 static struct GNUNET_TESTING_PeerGroup *pg;
  62
  63 /* Task handle to use to schedule test failure */
  64 GNUNET_SCHEDULER_TaskIdentifier die_task;
  65
  66 /* Global return value (0 for success, anything else for failure) */
  67 static int ok;
  68
  69 static struct GNUNET_NAMESTORE_Handle *namestore_handle;
  70
  71 static struct GNUNET_GNS_Handle *gns_handle;
  72
  73 const struct GNUNET_CONFIGURATION_Handle *cfg;
  74
  75 static unsigned long long max_parallel_lookups;
  76
  77 /**
  78  * Check whether peers successfully shut down.
  79  */
  80 void
  81 shutdown_callback (void *cls, const char *emsg)
  82 {
  83   if (emsg != NULL)
  84   {
  85     GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Error on shutdown! ret=%d\n", ok);
  86     if (ok == 0)
  87       ok = 2;
  88   }
  89
  90   GNUNET_log (GNUNET_ERROR_TYPE_INFO, "done(ret=%d)!\n", ok);
  91 }
  92
  93 static void
  94 on_lookup_result_dummy(void *cls, uint32_t rd_count,
  95                        const struct GNUNET_NAMESTORE_RecordData *rd)
  96 {
  97   if (rd_count != 0)
  98   {
  99     GNUNET_log(GNUNET_ERROR_TYPE_ERROR,
 100                "Got %d results from dummy lookup! Wanted: 0\n",
 101                rd_count);
 102     ok = -1;
 103   }
 104 }
 105
 106 static void
 107 on_lookup_result(void *cls, uint32_t rd_count,
 108                  const struct GNUNET_NAMESTORE_RecordData *rd)
 109 {
 110   struct in_addr a;
 111   int i;
 112   char* addr;
 113
 114   if (rd_count == 0)
 115   {
 116     GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
 117                 "Lookup failed, rp_filtering?\n");
 118     ok = 2;
 119   }
 120   else
 121   {
 122     ok = 1;
 123     GNUNET_log (GNUNET_ERROR_TYPE_INFO, "name: %s\n", (char*)cls);
 124     for (i=0; i<rd_count; i++)
 125     {
 126       GNUNET_log (GNUNET_ERROR_TYPE_INFO, "type: %d\n", rd[i].record_type);
 127       if (rd[i].record_type == GNUNET_GNS_RECORD_TYPE_A)
 128       {
 129         memcpy(&a, rd[i].data, sizeof(a));
 130         addr = inet_ntoa(a);
 131         GNUNET_log (GNUNET_ERROR_TYPE_INFO, "address: %s\n", addr);
 132         if (0 == strcmp(addr, TEST_IP))
 133         {
 134           GNUNET_log (GNUNET_ERROR_TYPE_INFO,
 135                     "%s correctly resolved to %s!\n", TEST_DOMAIN, addr);
 136           ok = 0;
 137         }
 138       }
 139       else
 140       {
 141         GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "No resolution!\n");
 142       }
 143     }
 144   }
 145   GNUNET_GNS_disconnect(gns_handle);
 146   GNUNET_log (GNUNET_ERROR_TYPE_INFO, "Shutting down peer1!\n");
 147   //GNUNET_TESTING_daemon_stop (d1, TIMEOUT, &shutdown_callback, NULL,
 148   //                            GNUNET_YES, GNUNET_NO);
 149   GNUNET_TESTING_daemons_stop (pg, TIMEOUT, &shutdown_callback, NULL);
 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                       GNUNET_NO,
 183                       &on_lookup_result_dummy, NULL);
 184   }
 185
 186   GNUNET_GNS_lookup(gns_handle, TEST_DOMAIN, GNUNET_GNS_RECORD_TYPE_A,
 187                     GNUNET_NO,
 188                     &on_lookup_result, TEST_DOMAIN);
 189 }
 190
 191
 192 /**
 193  * Continuation for the GNUNET_DHT_get_stop call, so that we don't shut
 194  * down the peers without freeing memory associated with GET request.
 195  */
 196 static void
 197 end_badly_cont (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
 198 {
 199
 200   if (pg != NULL)
 201     GNUNET_TESTING_daemons_stop (pg, TIMEOUT, &shutdown_callback, NULL);
 202   GNUNET_SCHEDULER_cancel (die_task);
 203 }
 204
 205 /**
 206  * Check if the get_handle is being used, if so stop the request.  Either
 207  * way, schedule the end_badly_cont function which actually shuts down the
 208  * test.
 209  */
 210 static void
 211 end_badly (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
 212 {
 213   GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Failing test with error: `%s'!\n",
 214               (char *) cls);
 215   GNUNET_SCHEDULER_add_now (&end_badly_cont, NULL);
 216   ok = 1;
 217 }
 218
 219 static void
 220 do_lookup(void *cls, const struct GNUNET_PeerIdentity *id,
 221           const struct GNUNET_CONFIGURATION_Handle *_cfg,
 222           struct GNUNET_TESTING_Daemon *d, const char *emsg)
 223 {
 224   struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded alice_pkey;
 225   struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded bob_pkey;
 226   struct GNUNET_CRYPTO_RsaPrivateKey *alice_key;
 227   struct GNUNET_CRYPTO_RsaPrivateKey *bob_key;
 228   char* alice_keyfile;
 229   struct GNUNET_CRYPTO_ShortHashCode bob_hash;
 230
 231   cfg = _cfg;
 232
 233   GNUNET_SCHEDULER_cancel (die_task);
 234
 235   /* put records into namestore */
 236   namestore_handle = GNUNET_NAMESTORE_connect(cfg);
 237   if (NULL == namestore_handle)
 238   {
 239     GNUNET_log(GNUNET_ERROR_TYPE_ERROR, "Failed to connect to namestore\n");
 240     ok = -1;
 241     return;
 242   }
 243
 244   if (GNUNET_OK != GNUNET_CONFIGURATION_get_value_filename (cfg, "gns",
 245                                                           "ZONEKEY",
 246                                                           &alice_keyfile))
 247   {
 248     GNUNET_log(GNUNET_ERROR_TYPE_ERROR, "Failed to get key from cfg\n");
 249     ok = -1;
 250     return;
 251   }
 252
 253   if (GNUNET_OK != GNUNET_CONFIGURATION_get_value_number (cfg, "gns",
 254                                              "MAX_PARALLEL_BACKGROUND_QUERIES",
 255                                              &max_parallel_lookups))
 256   {
 257     GNUNET_log(GNUNET_ERROR_TYPE_ERROR, "Failed to get max queries from cfg\n");
 258     ok = -1;
 259     GNUNET_free (alice_keyfile);
 260     return;
 261   }
 262
 263   alice_key = GNUNET_CRYPTO_rsa_key_create_from_file (alice_keyfile);
 264   bob_key = GNUNET_CRYPTO_rsa_key_create_from_file (KEYFILE_BOB);
 265
 266   GNUNET_CRYPTO_rsa_key_get_public (alice_key, &alice_pkey);
 267   GNUNET_CRYPTO_rsa_key_get_public (bob_key, &bob_pkey);
 268
 269   GNUNET_free(alice_keyfile);
 270
 271   struct GNUNET_NAMESTORE_RecordData rd;
 272   char* ip = TEST_IP;
 273   struct in_addr *web = GNUNET_malloc(sizeof(struct in_addr));
 274   rd.expiration = GNUNET_TIME_UNIT_FOREVER_ABS;
 275   GNUNET_assert(1 == inet_pton (AF_INET, ip, web));
 276   rd.data_size = sizeof(struct in_addr);
 277   rd.data = web;
 278   rd.record_type = GNUNET_DNSPARSER_TYPE_A;
 279
 280   GNUNET_NAMESTORE_record_create (namestore_handle,
 281                                   alice_key,
 282                                   TEST_RECORD_NAME,
 283                                   &rd,
 284                                   NULL,
 285                                   NULL);
 286
 287   GNUNET_CRYPTO_short_hash(&bob_pkey, sizeof(bob_pkey), &bob_hash);
 288   rd.data_size = sizeof(struct GNUNET_CRYPTO_ShortHashCode);
 289   rd.data = &bob_hash;
 290   rd.record_type = GNUNET_GNS_RECORD_PKEY;
 291
 292   GNUNET_NAMESTORE_record_create (namestore_handle,
 293                                   alice_key,
 294                                   TEST_AUTHORITY_NAME,
 295                                   &rd,
 296                                   &commence_testing,
 297                                   NULL);
 298
 299   GNUNET_CRYPTO_rsa_key_free(alice_key);
 300   GNUNET_CRYPTO_rsa_key_free(bob_key);
 301   GNUNET_free(web);
 302
 303 }
 304
 305 static void
 306 run (void *cls, char *const *args, const char *cfgfile,
 307      const struct GNUNET_CONFIGURATION_Handle *c)
 308 {
 309   cfg = c;
 310    /* Get path from configuration file */
 311   if (GNUNET_YES !=
 312       GNUNET_CONFIGURATION_get_value_string (cfg, "paths", "servicehome",
 313                                              &test_directory))
 314   {
 315     ok = 404;
 316     return;
 317   }
 318
 319
 320   /* Set up a task to end testing if peer start fails */
 321   die_task =
 322       GNUNET_SCHEDULER_add_delayed (TIMEOUT, &end_badly,
 323                                     "didn't start all daemons in reasonable amount of time!!!");
 324
 325   /* Start alice */
 326   //d1 = GNUNET_TESTING_daemon_start(cfg, TIMEOUT, GNUNET_NO, NULL, NULL, 0,
 327   //                                 NULL, NULL, NULL, &do_lookup, NULL);
 328   pg = GNUNET_TESTING_daemons_start(cfg, 1, 1, 1, TIMEOUT,
 329                                     NULL, NULL, &do_lookup, NULL,
 330                                     NULL, NULL, NULL);
 331 }
 332
 333 static int
 334 check ()
 335 {
 336   int ret;
 337
 338   /* Arguments for GNUNET_PROGRAM_run */
 339   char *const argv[] = { "test-gns-max-queries", /* Name to give running binary */
 340     "-c",
 341     "test_gns_simple_lookup.conf",       /* Config file to use */
 342 #if VERBOSE
 343     "-L", "DEBUG",
 344 #endif
 345     NULL
 346   };
 347   struct GNUNET_GETOPT_CommandLineOption options[] = {
 348     GNUNET_GETOPT_OPTION_END
 349   };
 350   /* Run the run function as a new program */
 351   ret =
 352       GNUNET_PROGRAM_run ((sizeof (argv) / sizeof (char *)) - 1, argv,
 353                           "test-gns-max-queries", "nohelp", options, &run,
 354                           &ok);
 355   if (ret != GNUNET_OK)
 356   {
 357     GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
 358                 "`test-gns-simple-lookup': Failed with error code %d\n", ret);
 359   }
 360   return ok;
 361 }
 362
 363 int
 364 main (int argc, char *argv[])
 365 {
 366   int ret;
 367
 368   GNUNET_log_setup ("test-gns-simple-lookup",
 369 #if VERBOSE
 370                     "DEBUG",
 371 #else
 372                     "WARNING",
 373 #endif
 374                     NULL);
 375   ret = check ();
 376   /**
 377    * Need to remove base directory, subdirectories taken care
 378    * of by the testing framework.
 379    */
 380   return ret;
 381 }
 382
 383 /* end of test_gns_twopeer.c */