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   uint16_t mx_preference;
 101   char* mx;
 102
 103   if (rd_count == 0)
 104   {
 105     GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
 106                 "Lookup failed, rp_filtering?\n");
 107     ok = 2;
 108   }
 109   else
 110   {
 111     ok = 1;
 112     GNUNET_log (GNUNET_ERROR_TYPE_INFO, "name: %s\n", (char*)cls);
 113     for (i=0; i<rd_count; i++)
 114     {
 115       GNUNET_log (GNUNET_ERROR_TYPE_INFO, "type: %d\n", rd[i].record_type);
 116       if (rd[i].record_type == GNUNET_GNS_RECORD_TYPE_A)
 117       {
 118         memcpy(&a, rd[i].data, sizeof(a));
 119         addr = inet_ntoa(a);
 120         GNUNET_log (GNUNET_ERROR_TYPE_INFO, "address: %s\n", addr);
 121         if (0 == strcmp(addr, TEST_IP))
 122         {
 123           GNUNET_log (GNUNET_ERROR_TYPE_INFO,
 124                     "%s correctly resolved to %s!\n", TEST_DOMAIN, addr);
 125           ip_found = 1;
 126         }
 127       }
 128       else if (rd[i].record_type == GNUNET_GNS_RECORD_MX)
 129       {
 130         mx = (char*)rd[i].data+sizeof(uint16_t);
 131         mx_preference = *(uint16_t*)rd[i].data;
 132         GNUNET_log (GNUNET_ERROR_TYPE_INFO,
 133                     "Got MX %s with preference %d\n", mx, mx_preference);
 134         if (0 == strcmp(mx, TEST_EXPECTED_MX))
 135         {
 136           GNUNET_log (GNUNET_ERROR_TYPE_INFO,
 137                       "%s correctly resolved to %s!\n", TEST_DOMAIN,
 138                       TEST_EXPECTED_MX);
 139           mx_found = 1;
 140         }
 141       }
 142     }
 143   }
 144
 145   if (ip_found && mx_found)
 146   {
 147     GNUNET_log (GNUNET_ERROR_TYPE_INFO,
 148                 "Test succeeded!\n");
 149     ok = 0;
 150   }
 151
 152   if (!ip_found && mx_found)
 153   {
 154     GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
 155   "Test partially succeeded: A record not passed along!(NOT IMPLEMENTED)\n");
 156     ok = 0;
 157   }
 158
 159   GNUNET_GNS_disconnect(gns_handle);
 160   GNUNET_log (GNUNET_ERROR_TYPE_INFO, "Shutting down peer1!\n");
 161   GNUNET_TESTING_daemon_stop (d1, TIMEOUT, &shutdown_callback, NULL,
 162                               GNUNET_YES, GNUNET_NO);
 163 }
 164
 165
 166 /**
 167  * Function scheduled to be run on the successful start of services
 168  * tries to look up the dns record for TEST_DOMAIN
 169  */
 170 static void
 171 commence_testing (void *cls, int32_t success, const char *emsg)
 172 {
 173   GNUNET_NAMESTORE_disconnect(namestore_handle, GNUNET_YES);
 174
 175   gns_handle = GNUNET_GNS_connect(cfg);
 176
 177   if (NULL == gns_handle)
 178   {
 179     GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
 180                 "Failed to connect to GNS!\n");
 181   }
 182
 183   GNUNET_GNS_lookup(gns_handle, TEST_DOMAIN, GNUNET_GNS_RECORD_MX,
 184                     &on_lookup_result, TEST_DOMAIN);
 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   struct GNUNET_CRYPTO_ShortHashCode bob_hash;
 225   struct GNUNET_CRYPTO_RsaSignature *sig;
 226   char* alice_keyfile;
 227
 228   GNUNET_SCHEDULER_cancel (die_task);
 229
 230   /* put records into namestore */
 231   namestore_handle = GNUNET_NAMESTORE_connect(cfg);
 232   if (NULL == namestore_handle)
 233   {
 234     GNUNET_log(GNUNET_ERROR_TYPE_ERROR, "Failed to connect to namestore\n");
 235     ok = -1;
 236     return;
 237   }
 238
 239   if (GNUNET_OK != GNUNET_CONFIGURATION_get_value_filename (cfg, "gns",
 240                                                           "ZONEKEY",
 241                                                           &alice_keyfile))
 242   {
 243     GNUNET_log(GNUNET_ERROR_TYPE_ERROR, "Failed to get key from cfg\n");
 244     ok = -1;
 245     return;
 246   }
 247
 248   alice_key = GNUNET_CRYPTO_rsa_key_create_from_file (alice_keyfile);
 249   bob_key = GNUNET_CRYPTO_rsa_key_create ();
 250
 251   GNUNET_CRYPTO_rsa_key_get_public (alice_key, &alice_pkey);
 252   GNUNET_CRYPTO_rsa_key_get_public (bob_key, &bob_pkey);
 253
 254   struct GNUNET_NAMESTORE_RecordData rd;
 255   char* ip = TEST_IP;
 256   struct in_addr *mail = GNUNET_malloc(sizeof(struct in_addr));
 257   char *mx_record;
 258   uint16_t mx_preference = 1;
 259   rd.expiration = GNUNET_TIME_absolute_get_forever ();
 260   GNUNET_assert(1 == inet_pton (AF_INET, ip, mail));
 261
 262   GNUNET_CRYPTO_short_hash(&bob_pkey, sizeof(bob_pkey), &bob_hash);
 263
 264   rd.data_size = sizeof(struct GNUNET_CRYPTO_ShortHashCode);
 265   rd.data = &bob_hash;
 266   rd.record_type = GNUNET_GNS_RECORD_PKEY;
 267
 268   GNUNET_NAMESTORE_record_create (namestore_handle,
 269                                   alice_key,
 270                                   TEST_AUTHORITY_NAME,
 271                                   &rd,
 272                                   NULL,
 273                                   NULL);
 274
 275   rd.data_size = sizeof(struct in_addr);
 276   rd.data = mail;
 277   rd.record_type = GNUNET_DNSPARSER_TYPE_A;
 278   sig = GNUNET_NAMESTORE_create_signature(bob_key,
 279                                           GNUNET_TIME_absolute_get_forever(),
 280                                           TEST_RECORD_NAME,
 281                                           &rd, 1);
 282
 283   GNUNET_NAMESTORE_record_put (namestore_handle,
 284                                &bob_pkey,
 285                                TEST_RECORD_NAME,
 286                                rd.expiration,
 287                                1,
 288                                &rd,
 289                                sig,
 290                                NULL,
 291                                NULL);
 292
 293   rd.data_size = sizeof(struct GNUNET_DNSPARSER_MxRecord)+strlen(TEST_MX_NAME)+1;
 294   mx_record = GNUNET_malloc(sizeof(uint16_t)+strlen(TEST_MX_NAME)+1);
 295   memcpy(mx_record, &mx_preference, sizeof(uint16_t));
 296   strcpy(mx_record+sizeof(uint16_t), TEST_MX_NAME);
 297   rd.data = mx_record;
 298   rd.record_type = GNUNET_GNS_RECORD_MX;
 299   sig = GNUNET_NAMESTORE_create_signature(bob_key,
 300                                           GNUNET_TIME_absolute_get_forever(),
 301                                           "+",
 302                                           &rd, 1);
 303   GNUNET_NAMESTORE_record_put (namestore_handle,
 304                                &bob_pkey,
 305                                "+",
 306                                rd.expiration,
 307                                1,
 308                                &rd,
 309                                sig,
 310                                &commence_testing,
 311                                NULL);
 312   GNUNET_free(mx_record);
 313   GNUNET_free(mail);
 314   GNUNET_free(sig);
 315   GNUNET_CRYPTO_rsa_key_free(bob_key);
 316   GNUNET_CRYPTO_rsa_key_free(alice_key);
 317 }
 318
 319 static void
 320 run (void *cls, char *const *args, const char *cfgfile,
 321      const struct GNUNET_CONFIGURATION_Handle *c)
 322 {
 323   cfg = c;
 324    /* Get path from configuration file */
 325   if (GNUNET_YES !=
 326       GNUNET_CONFIGURATION_get_value_string (cfg, "paths", "servicehome",
 327                                              &test_directory))
 328   {
 329     ok = 404;
 330     return;
 331   }
 332
 333
 334   /* Set up a task to end testing if peer start fails */
 335   die_task =
 336       GNUNET_SCHEDULER_add_delayed (TIMEOUT, &end_badly,
 337                                     "didn't start all daemons in reasonable amount of time!!!");
 338
 339   /* Start alice */
 340   d1 = GNUNET_TESTING_daemon_start(cfg, TIMEOUT, GNUNET_NO, NULL, NULL, 0,
 341                                    NULL, NULL, NULL, &do_lookup, NULL);
 342 }
 343
 344 static int
 345 check ()
 346 {
 347   int ret;
 348
 349   /* Arguments for GNUNET_PROGRAM_run */
 350   char *const argv[] = { "test-gns-simple-delegated-lookup", /* Name to give running binary */
 351     "-c",
 352     "test_gns_simple_lookup.conf",       /* Config file to use */
 353 #if VERBOSE
 354     "-L", "DEBUG",
 355 #endif
 356     NULL
 357   };
 358   struct GNUNET_GETOPT_CommandLineOption options[] = {
 359     GNUNET_GETOPT_OPTION_END
 360   };
 361   /* Run the run function as a new program */
 362   ret =
 363       GNUNET_PROGRAM_run ((sizeof (argv) / sizeof (char *)) - 1, argv,
 364                           "test-gns-simple-delegated-lookup", "nohelp", options, &run,
 365                           &ok);
 366   if (ret != GNUNET_OK)
 367   {
 368     GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
 369                 "`test-gns-simple-delegated-lookup': Failed with error code %d\n", ret);
 370   }
 371   return ok;
 372 }
 373
 374 int
 375 main (int argc, char *argv[])
 376 {
 377   int ret;
 378
 379   GNUNET_log_setup ("test-gns-simple-lookup",
 380 #if VERBOSE
 381                     "DEBUG",
 382 #else
 383                     "WARNING",
 384 #endif
 385                     NULL);
 386   ret = check ();
 387   /**
 388    * Need to remove base directory, subdirectories taken care
 389    * of by the testing framework.
 390    */
 391   return ret;
 392 }
 393
 394 /* end of test_gns_twopeer.c */