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   int i;
  97   uint16_t mx_preference;
  98   char* mx;
  99
 100   GNUNET_NAMESTORE_disconnect (namestore_handle);
 101   if (rd_count == 0)
 102   {
 103     GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
 104                 "Lookup failed, rp_filtering?\n");
 105     ok = 2;
 106   }
 107   else
 108   {
 109     ok = 1;
 110     GNUNET_log (GNUNET_ERROR_TYPE_INFO, "name: %s\n", (char*)cls);
 111     for (i=0; i<rd_count; i++)
 112     {
 113       GNUNET_log (GNUNET_ERROR_TYPE_INFO, "type: %d\n", rd[i].record_type);
 114       if (rd[i].record_type == GNUNET_GNS_RECORD_MX)
 115       {
 116         mx = (char*)rd[i].data+sizeof(uint16_t);
 117         mx_preference = *(uint16_t*)rd[i].data;
 118         GNUNET_log (GNUNET_ERROR_TYPE_INFO,
 119                     "Got MX %s with preference %d\n", mx, mx_preference);
 120         if (0 == strcmp(mx, TEST_EXPECTED_MX))
 121         {
 122           GNUNET_log (GNUNET_ERROR_TYPE_INFO,
 123                       "%s correctly resolved to %s!\n", TEST_DOMAIN,
 124                       TEST_EXPECTED_MX);
 125           ok = 0;
 126         }
 127       }
 128     }
 129   }
 130
 131   GNUNET_GNS_disconnect(gns_handle);
 132   GNUNET_log (GNUNET_ERROR_TYPE_INFO, "Shutting down peer1!\n");
 133   GNUNET_TESTING_daemons_stop (pg, TIMEOUT, &shutdown_callback, NULL);
 134 }
 135
 136
 137 /**
 138  * Function scheduled to be run on the successful start of services
 139  * tries to look up the dns record for TEST_DOMAIN
 140  */
 141 static void
 142 commence_testing (void *cls, int32_t success, const char *emsg)
 143 {
 144
 145   gns_handle = GNUNET_GNS_connect(cfg);
 146
 147   if (NULL == gns_handle)
 148   {
 149     GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
 150                 "Failed to connect to GNS!\n");
 151   }
 152
 153   GNUNET_GNS_lookup(gns_handle, TEST_DOMAIN, GNUNET_GNS_RECORD_MX,
 154                     GNUNET_NO,
 155                     NULL,
 156                     &on_lookup_result, TEST_DOMAIN);
 157 }
 158
 159 /**
 160  * Continuation for the GNUNET_DHT_get_stop call, so that we don't shut
 161  * down the peers without freeing memory associated with GET request.
 162  */
 163 static void
 164 end_badly_cont (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
 165 {
 166
 167   if (pg != NULL)
 168     GNUNET_TESTING_daemons_stop (pg, TIMEOUT, &shutdown_callback, NULL);
 169   GNUNET_SCHEDULER_cancel (die_task);
 170 }
 171
 172 /**
 173  * Check if the get_handle is being used, if so stop the request.  Either
 174  * way, schedule the end_badly_cont function which actually shuts down the
 175  * test.
 176  */
 177 static void
 178 end_badly (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
 179 {
 180   GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Failing test with error: `%s'!\n",
 181               (char *) cls);
 182   GNUNET_SCHEDULER_add_now (&end_badly_cont, NULL);
 183   ok = 1;
 184 }
 185
 186 static void
 187 do_lookup(void *cls, const struct GNUNET_PeerIdentity *id,
 188           const struct GNUNET_CONFIGURATION_Handle *_cfg,
 189           struct GNUNET_TESTING_Daemon *d, const char *emsg)
 190 {
 191   struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded alice_pkey;
 192   struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded bob_pkey;
 193   struct GNUNET_CRYPTO_RsaPrivateKey *alice_key;
 194   struct GNUNET_CRYPTO_RsaPrivateKey *bob_key;
 195   struct GNUNET_CRYPTO_ShortHashCode bob_hash;
 196   struct GNUNET_CRYPTO_RsaSignature *sig;
 197   char* alice_keyfile;
 198   struct GNUNET_TIME_Absolute et;
 199
 200   cfg = _cfg;
 201
 202   GNUNET_SCHEDULER_cancel (die_task);
 203
 204   /* put records into namestore */
 205   namestore_handle = GNUNET_NAMESTORE_connect(cfg);
 206   if (NULL == namestore_handle)
 207   {
 208     GNUNET_log(GNUNET_ERROR_TYPE_ERROR, "Failed to connect to namestore\n");
 209     ok = -1;
 210     return;
 211   }
 212
 213   if (GNUNET_OK != GNUNET_CONFIGURATION_get_value_filename (cfg, "gns",
 214                                                           "ZONEKEY",
 215                                                           &alice_keyfile))
 216   {
 217     GNUNET_log(GNUNET_ERROR_TYPE_ERROR, "Failed to get key from cfg\n");
 218     ok = -1;
 219     return;
 220   }
 221
 222   alice_key = GNUNET_CRYPTO_rsa_key_create_from_file (alice_keyfile);
 223   bob_key = GNUNET_CRYPTO_rsa_key_create_from_file (KEYFILE_BOB);
 224
 225   GNUNET_CRYPTO_rsa_key_get_public (alice_key, &alice_pkey);
 226   GNUNET_CRYPTO_rsa_key_get_public (bob_key, &bob_pkey);
 227
 228   struct GNUNET_NAMESTORE_RecordData rd;
 229   char* ip = TEST_IP;
 230   struct in_addr *mail = GNUNET_malloc(sizeof(struct in_addr));
 231   char *mx_record;
 232   uint16_t mx_preference = 1;
 233   rd.expiration_time = UINT64_MAX;
 234   GNUNET_assert(1 == inet_pton (AF_INET, ip, mail));
 235
 236   GNUNET_CRYPTO_short_hash(&bob_pkey, sizeof(bob_pkey), &bob_hash);
 237
 238   rd.data_size = sizeof(struct GNUNET_CRYPTO_ShortHashCode);
 239   rd.data = &bob_hash;
 240   rd.record_type = GNUNET_GNS_RECORD_PKEY;
 241   rd.flags = GNUNET_NAMESTORE_RF_AUTHORITY;
 242
 243   GNUNET_NAMESTORE_record_create (namestore_handle,
 244                                   alice_key,
 245                                   TEST_AUTHORITY_NAME,
 246                                   &rd,
 247                                   NULL,
 248                                   NULL);
 249
 250   rd.data_size = sizeof(struct in_addr);
 251   rd.data = mail;
 252   rd.record_type = GNUNET_DNSPARSER_TYPE_A;
 253   sig = GNUNET_NAMESTORE_create_signature(bob_key,
 254                                           GNUNET_TIME_UNIT_FOREVER_ABS,
 255                                           TEST_RECORD_NAME,
 256                                           &rd, 1);
 257   et.abs_value = rd.expiration_time;
 258   GNUNET_NAMESTORE_record_put (namestore_handle,
 259                                &bob_pkey,
 260                                TEST_RECORD_NAME,
 261                                et,
 262                                1,
 263                                &rd,
 264                                sig,
 265                                NULL,
 266                                NULL);
 267
 268   rd.data_size = sizeof(struct GNUNET_DNSPARSER_MxRecord)+strlen(TEST_MX_NAME)+1;
 269   mx_record = GNUNET_malloc(sizeof(uint16_t)+strlen(TEST_MX_NAME)+1);
 270   memcpy(mx_record, &mx_preference, sizeof(uint16_t));
 271   strcpy(mx_record+sizeof(uint16_t), TEST_MX_NAME);
 272   rd.data = mx_record;
 273   rd.record_type = GNUNET_GNS_RECORD_MX;
 274   sig = GNUNET_NAMESTORE_create_signature(bob_key,
 275                                           GNUNET_TIME_UNIT_FOREVER_ABS,
 276                                           "+",
 277                                           &rd, 1);
 278   et.abs_value = rd.expiration_time;
 279   GNUNET_NAMESTORE_record_put (namestore_handle,
 280                                &bob_pkey,
 281                                "+",
 282                                et,
 283                                1,
 284                                &rd,
 285                                sig,
 286                                &commence_testing,
 287                                NULL);
 288   GNUNET_free(mx_record);
 289   GNUNET_free(mail);
 290   GNUNET_free(sig);
 291   GNUNET_CRYPTO_rsa_key_free(bob_key);
 292   GNUNET_CRYPTO_rsa_key_free(alice_key);
 293 }
 294
 295 static void
 296 run (void *cls, char *const *args, const char *cfgfile,
 297      const struct GNUNET_CONFIGURATION_Handle *c)
 298 {
 299   cfg = c;
 300    /* Get path from configuration file */
 301   if (GNUNET_YES !=
 302       GNUNET_CONFIGURATION_get_value_string (cfg, "paths", "servicehome",
 303                                              &test_directory))
 304   {
 305     ok = 404;
 306     return;
 307   }
 308
 309
 310   /* Set up a task to end testing if peer start fails */
 311   die_task =
 312       GNUNET_SCHEDULER_add_delayed (TIMEOUT, &end_badly,
 313                                     "didn't start all daemons in reasonable amount of time!!!");
 314
 315   /* Start alice */
 316   pg = GNUNET_TESTING_daemons_start(cfg, 1, 1, 1, TIMEOUT,
 317                                     NULL, NULL, &do_lookup, NULL,
 318                                     NULL, NULL, NULL);
 319 }
 320
 321 static int
 322 check ()
 323 {
 324   int ret;
 325
 326   /* Arguments for GNUNET_PROGRAM_run */
 327   char *const argv[] = { "test-gns-simple-mx-lookup", /* Name to give running binary */
 328     "-c",
 329     "test_gns_simple_lookup.conf",       /* Config file to use */
 330 #if VERBOSE
 331     "-L", "DEBUG",
 332 #endif
 333     NULL
 334   };
 335   struct GNUNET_GETOPT_CommandLineOption options[] = {
 336     GNUNET_GETOPT_OPTION_END
 337   };
 338   /* Run the run function as a new program */
 339   ret =
 340       GNUNET_PROGRAM_run ((sizeof (argv) / sizeof (char *)) - 1, argv,
 341                           "test-gns-simple-mx-lookup", "nohelp", options, &run,
 342                           &ok);
 343   if (ret != GNUNET_OK)
 344   {
 345     GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
 346                 "`test-gns-simple-mx-lookup': Failed with error code %d\n", ret);
 347   }
 348   return ok;
 349 }
 350
 351 int
 352 main (int argc, char *argv[])
 353 {
 354   int ret;
 355
 356   GNUNET_log_setup ("test-gns-simple-mx-lookup",
 357 #if VERBOSE
 358                     "DEBUG",
 359 #else
 360                     "WARNING",
 361 #endif
 362                     NULL);
 363   ret = check ();
 364   /**
 365    * Need to remove base directory, subdirectories taken care
 366    * of by the testing framework.
 367    */
 368   return ret;
 369 }
 370
 371 /* end of test_gns_simple_mx_lookup.c */