src/gns/test_gns_simple_mx_lookup.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_simple_mx_lookup.c
  22  * @brief base testcase for testing GNS MX lookups
  23  *
  24  */
  25 #include "platform.h"
  26 #include "gnunet_testing_lib.h"
  27 #include "gnunet_core_service.h"
  28 #include "block_dns.h"
  29 #include "gnunet_signatures.h"
  30 #include "gnunet_namestore_service.h"
  31 #include "../namestore/namestore.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 "bob.gnunet"
  46 #define TEST_IP "127.0.0.1"
  47 #define TEST_RECORD_NAME "mail"
  48 #define TEST_MX_NAME "mail.+"
  49 #define TEST_EXPECTED_MX "mail.bob.gnunet"
  50
  51 #define TEST_AUTHORITY_NAME "bob"
  52
  53 /* Globals */
  54
  55 /**
  56  * Directory to store temp data in, defined in config file
  57  */
  58 static char *test_directory;
  59
  60 struct GNUNET_TESTING_Daemon *d1;
  61
  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 /**
  76  * Check whether peers successfully shut down.
  77  */
  78 void
  79 shutdown_callback (void *cls, const char *emsg)
  80 {
  81   if (emsg != NULL)
  82   {
  83     GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Error on shutdown! ret=%d\n", ok);
  84     if (ok == 0)
  85       ok = 2;
  86   }
  87
  88   GNUNET_log (GNUNET_ERROR_TYPE_INFO, "done(ret=%d)!\n", ok);
  89 }
  90
  91 static void
  92 on_lookup_result(void *cls, uint32_t rd_count,
  93                  const struct GNUNET_NAMESTORE_RecordData *rd)
  94 {
  95   struct in_addr a;
  96   int i;
  97   char* addr;
  98   int mx_found = 0;
  99   int ip_found = 0;
 100   struct GNUNET_DNSPARSER_MxRecord *mx;
 101
 102   if (rd_count == 0)
 103   {
 104     GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
 105                 "Lookup failed, rp_filtering?\n");
 106     ok = 2;
 107   }
 108   else
 109   {
 110     ok = 1;
 111     GNUNET_log (GNUNET_ERROR_TYPE_INFO, "name: %s\n", (char*)cls);
 112     for (i=0; i<rd_count; i++)
 113     {
 114       GNUNET_log (GNUNET_ERROR_TYPE_INFO, "type: %d\n", rd[i].record_type);
 115       if (rd[i].record_type == GNUNET_GNS_RECORD_TYPE_A)
 116       {
 117         memcpy(&a, rd[i].data, sizeof(a));
 118         addr = inet_ntoa(a);
 119         GNUNET_log (GNUNET_ERROR_TYPE_INFO, "address: %s\n", addr);
 120         if (0 == strcmp(addr, TEST_IP))
 121         {
 122           GNUNET_log (GNUNET_ERROR_TYPE_INFO,
 123                     "%s correctly resolved to %s!\n", TEST_DOMAIN, addr);
 124           ip_found = 1;
 125         }
 126       }
 127       else if (rd[i].record_type == GNUNET_GNS_RECORD_MX)
 128       {
 129         mx = (struct GNUNET_DNSPARSER_MxRecord*)rd[i].data;
 130         mx->mxhost = (char*)&mx[1];
 131         GNUNET_log (GNUNET_ERROR_TYPE_INFO,
 132                     "Got MX %s\n", mx->mxhost);
 133         if (0 == strcmp(mx->mxhost, TEST_EXPECTED_MX))
 134         {
 135           GNUNET_log (GNUNET_ERROR_TYPE_INFO,
 136                       "%s correctly resolved to %s!\n", TEST_DOMAIN,
 137                       TEST_EXPECTED_MX);
 138           mx_found = 1;
 139         }
 140       }
 141     }
 142   }
 143
 144   if (ip_found && mx_found)
 145   {
 146     GNUNET_log (GNUNET_ERROR_TYPE_INFO,
 147                 "Test succeeded!\n");
 148     ok = 0;
 149   }
 150
 151   if (!ip_found && mx_found)
 152   {
 153     GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
 154   "Test partially succeeded: A record not passed along!(NOT IMPLEMENTED)\n");
 155     ok = 0;
 156   }
 157
 158   GNUNET_GNS_disconnect(gns_handle);
 159   GNUNET_log (GNUNET_ERROR_TYPE_INFO, "Shutting down peer1!\n");
 160   GNUNET_TESTING_daemon_stop (d1, TIMEOUT, &shutdown_callback, NULL,
 161                               GNUNET_YES, GNUNET_NO);
 162 }
 163
 164
 165 /**
 166  * Function scheduled to be run on the successful start of services
 167  * tries to look up the dns record for TEST_DOMAIN
 168  */
 169 static void
 170 commence_testing (void *cls, int32_t success, const char *emsg)
 171 {
 172   GNUNET_NAMESTORE_disconnect(namestore_handle, GNUNET_YES);
 173
 174   gns_handle = GNUNET_GNS_connect(cfg);
 175
 176   if (NULL == gns_handle)
 177   {
 178     GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
 179                 "Failed to connect to GNS!\n");
 180   }
 181
 182   GNUNET_GNS_lookup(gns_handle, TEST_DOMAIN, GNUNET_GNS_RECORD_MX,
 183                     &on_lookup_result, TEST_DOMAIN);
 184 }
 185
 186 /**
 187  * Continuation for the GNUNET_DHT_get_stop call, so that we don't shut
 188  * down the peers without freeing memory associated with GET request.
 189  */
 190 static void
 191 end_badly_cont (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
 192 {
 193
 194   if (d1 != NULL)
 195     GNUNET_TESTING_daemon_stop (d1, TIMEOUT, &shutdown_callback, NULL,
 196                                 GNUNET_YES, GNUNET_NO);
 197   GNUNET_SCHEDULER_cancel (die_task);
 198 }
 199
 200 /**
 201  * Check if the get_handle is being used, if so stop the request.  Either
 202  * way, schedule the end_badly_cont function which actually shuts down the
 203  * test.
 204  */
 205 static void
 206 end_badly (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
 207 {
 208   GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Failing test with error: `%s'!\n",
 209               (char *) cls);
 210   GNUNET_SCHEDULER_add_now (&end_badly_cont, NULL);
 211   ok = 1;
 212 }
 213
 214 static void
 215 do_lookup(void *cls, const struct GNUNET_PeerIdentity *id,
 216           const struct GNUNET_CONFIGURATION_Handle *cfg,
 217           struct GNUNET_TESTING_Daemon *d, const char *emsg)
 218 {
 219   struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded alice_pkey;
 220   struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded bob_pkey;
 221   struct GNUNET_CRYPTO_RsaPrivateKey *alice_key;
 222   struct GNUNET_CRYPTO_RsaPrivateKey *bob_key;
 223   GNUNET_HashCode bob_hash;
 224   struct GNUNET_CRYPTO_RsaSignature *sig;
 225   char* alice_keyfile;
 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   alice_key = GNUNET_CRYPTO_rsa_key_create_from_file (alice_keyfile);
 248   bob_key = GNUNET_CRYPTO_rsa_key_create ();
 249
 250   GNUNET_CRYPTO_rsa_key_get_public (alice_key, &alice_pkey);
 251   GNUNET_CRYPTO_rsa_key_get_public (bob_key, &bob_pkey);
 252
 253   struct GNUNET_NAMESTORE_RecordData rd;
 254   char* ip = TEST_IP;
 255   struct in_addr *mail = GNUNET_malloc(sizeof(struct in_addr));
 256   struct GNUNET_DNSPARSER_MxRecord *mx_record;
 257   rd.expiration = GNUNET_TIME_absolute_get_forever ();
 258   GNUNET_assert(1 == inet_pton (AF_INET, ip, mail));
 259
 260   GNUNET_CRYPTO_hash(&bob_pkey, sizeof(bob_pkey), &bob_hash);
 261
 262   rd.data_size = sizeof(GNUNET_HashCode);
 263   rd.data = &bob_hash;
 264   rd.record_type = GNUNET_GNS_RECORD_PKEY;
 265
 266   GNUNET_NAMESTORE_record_create (namestore_handle,
 267                                   alice_key,
 268                                   TEST_AUTHORITY_NAME,
 269                                   &rd,
 270                                   NULL,
 271                                   NULL);
 272
 273   rd.data_size = sizeof(struct in_addr);
 274   rd.data = mail;
 275   rd.record_type = GNUNET_DNSPARSER_TYPE_A;
 276   sig = GNUNET_NAMESTORE_create_signature(bob_key,
 277                                           GNUNET_TIME_absolute_get_forever(),
 278                                           TEST_RECORD_NAME,
 279                                           &rd, 1);
 280
 281   GNUNET_NAMESTORE_record_put (namestore_handle,
 282                                &bob_pkey,
 283                                TEST_RECORD_NAME,
 284                                rd.expiration,
 285                                1,
 286                                &rd,
 287                                sig,
 288                                NULL,
 289                                NULL);
 290
 291   rd.data_size = sizeof(struct GNUNET_DNSPARSER_MxRecord)+strlen(TEST_MX_NAME)+1;
 292   mx_record = GNUNET_malloc(rd.data_size);
 293   mx_record->preference = 1;
 294   mx_record->mxhost = (char*)&mx_record[1];
 295   strcpy(mx_record->mxhost, TEST_MX_NAME);
 296   rd.data = mx_record;
 297   rd.record_type = GNUNET_GNS_RECORD_MX;
 298   sig = GNUNET_NAMESTORE_create_signature(bob_key,
 299                                           GNUNET_TIME_absolute_get_forever(),
 300                                           "+",
 301                                           &rd, 1);
 302   GNUNET_NAMESTORE_record_put (namestore_handle,
 303                                &bob_pkey,
 304                                "+",
 305                                rd.expiration,
 306                                1,
 307                                &rd,
 308                                sig,
 309                                &commence_testing,
 310                                NULL);
 311   GNUNET_free(mx_record);
 312   GNUNET_free(mail);
 313   GNUNET_free(sig);
 314   GNUNET_CRYPTO_rsa_key_free(bob_key);
 315   GNUNET_CRYPTO_rsa_key_free(alice_key);
 316 }
 317
 318 static void
 319 run (void *cls, char *const *args, const char *cfgfile,
 320      const struct GNUNET_CONFIGURATION_Handle *c)
 321 {
 322   cfg = c;
 323    /* Get path from configuration file */
 324   if (GNUNET_YES !=
 325       GNUNET_CONFIGURATION_get_value_string (cfg, "paths", "servicehome",
 326                                              &test_directory))
 327   {
 328     ok = 404;
 329     return;
 330   }
 331
 332
 333   /* Set up a task to end testing if peer start fails */
 334   die_task =
 335       GNUNET_SCHEDULER_add_delayed (TIMEOUT, &end_badly,
 336                                     "didn't start all daemons in reasonable amount of time!!!");
 337
 338   /* Start alice */
 339   d1 = GNUNET_TESTING_daemon_start(cfg, TIMEOUT, GNUNET_NO, NULL, NULL, 0,
 340                                    NULL, NULL, NULL, &do_lookup, NULL);
 341 }
 342
 343 static int
 344 check ()
 345 {
 346   int ret;
 347
 348   /* Arguments for GNUNET_PROGRAM_run */
 349   char *const argv[] = { "test-gns-simple-delegated-lookup", /* Name to give running binary */
 350     "-c",
 351     "test_gns_simple_lookup.conf",       /* Config file to use */
 352 #if VERBOSE
 353     "-L", "DEBUG",
 354 #endif
 355     NULL
 356   };
 357   struct GNUNET_GETOPT_CommandLineOption options[] = {
 358     GNUNET_GETOPT_OPTION_END
 359   };
 360   /* Run the run function as a new program */
 361   ret =
 362       GNUNET_PROGRAM_run ((sizeof (argv) / sizeof (char *)) - 1, argv,
 363                           "test-gns-simple-delegated-lookup", "nohelp", options, &run,
 364                           &ok);
 365   if (ret != GNUNET_OK)
 366   {
 367     GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
 368                 "`test-gns-simple-delegated-lookup': Failed with error code %d\n", ret);
 369   }
 370   return ok;
 371 }
 372
 373 int
 374 main (int argc, char *argv[])
 375 {
 376   int ret;
 377
 378   GNUNET_log_setup ("test-gns-simple-lookup",
 379 #if VERBOSE
 380                     "DEBUG",
 381 #else
 382                     "WARNING",
 383 #endif
 384                     NULL);
 385   ret = check ();
 386   /**
 387    * Need to remove base directory, subdirectories taken care
 388    * of by the testing framework.
 389    */
 390   return ret;
 391 }
 392
 393 /* end of test_gns_twopeer.c */