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, 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 "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 #define KEYFILE_BOB "../namestore/zonefiles/HGU0A0VCU334DN7F2I9UIUMVQMM7JMSD142LIMNUGTTV9R0CF4EG.zkey"
  54
  55 /* Globals */
  56
  57 /**
  58  * Directory to store temp data in, defined in config file
  59  */
  60 static char *test_directory;
  61
  62 static struct GNUNET_TESTING_PeerGroup *pg;
  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 /**
  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(void *cls, uint32_t rd_count,
  94                  const struct GNUNET_NAMESTORE_RecordData *rd)
  95 {
  96   struct in_addr a;
  97   int i;
  98   char* addr;
  99   int mx_found = 0;
 100   int ip_found = 0;
 101   uint16_t mx_preference;
 102   char* mx;
 103
 104   if (rd_count == 0)
 105   {
 106     GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
 107                 "Lookup failed, rp_filtering?\n");
 108     ok = 2;
 109   }
 110   else
 111   {
 112     ok = 1;
 113     GNUNET_log (GNUNET_ERROR_TYPE_INFO, "name: %s\n", (char*)cls);
 114     for (i=0; i<rd_count; i++)
 115     {
 116       GNUNET_log (GNUNET_ERROR_TYPE_INFO, "type: %d\n", rd[i].record_type);
 117       if (rd[i].record_type == GNUNET_GNS_RECORD_TYPE_A)
 118       {
 119         memcpy(&a, rd[i].data, sizeof(a));
 120         addr = inet_ntoa(a);
 121         GNUNET_log (GNUNET_ERROR_TYPE_INFO, "address: %s\n", addr);
 122         if (0 == strcmp(addr, TEST_IP))
 123         {
 124           GNUNET_log (GNUNET_ERROR_TYPE_INFO,
 125                     "%s correctly resolved to %s!\n", TEST_DOMAIN, addr);
 126           ip_found = 1;
 127         }
 128       }
 129       else if (rd[i].record_type == GNUNET_GNS_RECORD_MX)
 130       {
 131         mx = (char*)rd[i].data+sizeof(uint16_t);
 132         mx_preference = *(uint16_t*)rd[i].data;
 133         GNUNET_log (GNUNET_ERROR_TYPE_INFO,
 134                     "Got MX %s with preference %d\n", mx, mx_preference);
 135         if (0 == strcmp(mx, TEST_EXPECTED_MX))
 136         {
 137           GNUNET_log (GNUNET_ERROR_TYPE_INFO,
 138                       "%s correctly resolved to %s!\n", TEST_DOMAIN,
 139                       TEST_EXPECTED_MX);
 140           mx_found = 1;
 141         }
 142       }
 143     }
 144   }
 145
 146   if (ip_found && mx_found)
 147   {
 148     GNUNET_log (GNUNET_ERROR_TYPE_INFO,
 149                 "Test succeeded!\n");
 150     ok = 0;
 151   }
 152
 153   if (!ip_found && mx_found)
 154   {
 155     GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
 156   "Test partially succeeded: A record not passed along!(NOT IMPLEMENTED)\n");
 157     ok = 0;
 158   }
 159
 160   GNUNET_GNS_disconnect(gns_handle);
 161   GNUNET_log (GNUNET_ERROR_TYPE_INFO, "Shutting down peer1!\n");
 162   GNUNET_TESTING_daemons_stop (pg, TIMEOUT, &shutdown_callback, NULL);
 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 (pg != NULL)
 196     GNUNET_TESTING_daemons_stop (pg, TIMEOUT, &shutdown_callback, NULL);
 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   struct GNUNET_CRYPTO_ShortHashCode bob_hash;
 224   struct GNUNET_CRYPTO_RsaSignature *sig;
 225   char* alice_keyfile;
 226
 227   cfg = _cfg;
 228
 229   GNUNET_SCHEDULER_cancel (die_task);
 230
 231   /* put records into namestore */
 232   namestore_handle = GNUNET_NAMESTORE_connect(cfg);
 233   if (NULL == namestore_handle)
 234   {
 235     GNUNET_log(GNUNET_ERROR_TYPE_ERROR, "Failed to connect to namestore\n");
 236     ok = -1;
 237     return;
 238   }
 239
 240   if (GNUNET_OK != GNUNET_CONFIGURATION_get_value_filename (cfg, "gns",
 241                                                           "ZONEKEY",
 242                                                           &alice_keyfile))
 243   {
 244     GNUNET_log(GNUNET_ERROR_TYPE_ERROR, "Failed to get key from cfg\n");
 245     ok = -1;
 246     return;
 247   }
 248
 249   alice_key = GNUNET_CRYPTO_rsa_key_create_from_file (alice_keyfile);
 250   bob_key = GNUNET_CRYPTO_rsa_key_create_from_file (KEYFILE_BOB);
 251
 252   GNUNET_CRYPTO_rsa_key_get_public (alice_key, &alice_pkey);
 253   GNUNET_CRYPTO_rsa_key_get_public (bob_key, &bob_pkey);
 254
 255   struct GNUNET_NAMESTORE_RecordData rd;
 256   char* ip = TEST_IP;
 257   struct in_addr *mail = GNUNET_malloc(sizeof(struct in_addr));
 258   char *mx_record;
 259   uint16_t mx_preference = 1;
 260   rd.expiration = GNUNET_TIME_absolute_get_forever ();
 261   GNUNET_assert(1 == inet_pton (AF_INET, ip, mail));
 262
 263   GNUNET_CRYPTO_short_hash(&bob_pkey, sizeof(bob_pkey), &bob_hash);
 264
 265   rd.data_size = sizeof(struct GNUNET_CRYPTO_ShortHashCode);
 266   rd.data = &bob_hash;
 267   rd.record_type = GNUNET_GNS_RECORD_PKEY;
 268
 269   GNUNET_NAMESTORE_record_create (namestore_handle,
 270                                   alice_key,
 271                                   TEST_AUTHORITY_NAME,
 272                                   &rd,
 273                                   NULL,
 274                                   NULL);
 275
 276   rd.data_size = sizeof(struct in_addr);
 277   rd.data = mail;
 278   rd.record_type = GNUNET_DNSPARSER_TYPE_A;
 279   sig = GNUNET_NAMESTORE_create_signature(bob_key,
 280                                           GNUNET_TIME_absolute_get_forever(),
 281                                           TEST_RECORD_NAME,
 282                                           &rd, 1);
 283
 284   GNUNET_NAMESTORE_record_put (namestore_handle,
 285                                &bob_pkey,
 286                                TEST_RECORD_NAME,
 287                                rd.expiration,
 288                                1,
 289                                &rd,
 290                                sig,
 291                                NULL,
 292                                NULL);
 293
 294   rd.data_size = sizeof(struct GNUNET_DNSPARSER_MxRecord)+strlen(TEST_MX_NAME)+1;
 295   mx_record = GNUNET_malloc(sizeof(uint16_t)+strlen(TEST_MX_NAME)+1);
 296   memcpy(mx_record, &mx_preference, sizeof(uint16_t));
 297   strcpy(mx_record+sizeof(uint16_t), TEST_MX_NAME);
 298   rd.data = mx_record;
 299   rd.record_type = GNUNET_GNS_RECORD_MX;
 300   sig = GNUNET_NAMESTORE_create_signature(bob_key,
 301                                           GNUNET_TIME_absolute_get_forever(),
 302                                           "+",
 303                                           &rd, 1);
 304   GNUNET_NAMESTORE_record_put (namestore_handle,
 305                                &bob_pkey,
 306                                "+",
 307                                rd.expiration,
 308                                1,
 309                                &rd,
 310                                sig,
 311                                &commence_testing,
 312                                NULL);
 313   GNUNET_free(mx_record);
 314   GNUNET_free(mail);
 315   GNUNET_free(sig);
 316   GNUNET_CRYPTO_rsa_key_free(bob_key);
 317   GNUNET_CRYPTO_rsa_key_free(alice_key);
 318 }
 319
 320 static void
 321 run (void *cls, char *const *args, const char *cfgfile,
 322      const struct GNUNET_CONFIGURATION_Handle *c)
 323 {
 324   cfg = c;
 325    /* Get path from configuration file */
 326   if (GNUNET_YES !=
 327       GNUNET_CONFIGURATION_get_value_string (cfg, "paths", "servicehome",
 328                                              &test_directory))
 329   {
 330     ok = 404;
 331     return;
 332   }
 333
 334
 335   /* Set up a task to end testing if peer start fails */
 336   die_task =
 337       GNUNET_SCHEDULER_add_delayed (TIMEOUT, &end_badly,
 338                                     "didn't start all daemons in reasonable amount of time!!!");
 339
 340   /* Start alice */
 341   pg = GNUNET_TESTING_daemons_start(cfg, 1, 1, 1, TIMEOUT,
 342                                     NULL, NULL, &do_lookup, NULL,
 343                                     NULL, NULL, NULL);
 344 }
 345
 346 static int
 347 check ()
 348 {
 349   int ret;
 350
 351   /* Arguments for GNUNET_PROGRAM_run */
 352   char *const argv[] = { "test-gns-simple-delegated-lookup", /* Name to give running binary */
 353     "-c",
 354     "test_gns_simple_lookup.conf",       /* Config file to use */
 355 #if VERBOSE
 356     "-L", "DEBUG",
 357 #endif
 358     NULL
 359   };
 360   struct GNUNET_GETOPT_CommandLineOption options[] = {
 361     GNUNET_GETOPT_OPTION_END
 362   };
 363   /* Run the run function as a new program */
 364   ret =
 365       GNUNET_PROGRAM_run ((sizeof (argv) / sizeof (char *)) - 1, argv,
 366                           "test-gns-simple-delegated-lookup", "nohelp", options, &run,
 367                           &ok);
 368   if (ret != GNUNET_OK)
 369   {
 370     GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
 371                 "`test-gns-simple-delegated-lookup': Failed with error code %d\n", ret);
 372   }
 373   return ok;
 374 }
 375
 376 int
 377 main (int argc, char *argv[])
 378 {
 379   int ret;
 380
 381   GNUNET_log_setup ("test-gns-simple-lookup",
 382 #if VERBOSE
 383                     "DEBUG",
 384 #else
 385                     "WARNING",
 386 #endif
 387                     NULL);
 388   ret = check ();
 389   /**
 390    * Need to remove base directory, subdirectories taken care
 391    * of by the testing framework.
 392    */
 393   return ret;
 394 }
 395
 396 /* end of test_gns_twopeer.c */