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                     GNUNET_NO,
 185                     NULL,
 186                     &on_lookup_result, TEST_DOMAIN);
 187 }
 188
 189 /**
 190  * Continuation for the GNUNET_DHT_get_stop call, so that we don't shut
 191  * down the peers without freeing memory associated with GET request.
 192  */
 193 static void
 194 end_badly_cont (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
 195 {
 196
 197   if (pg != NULL)
 198     GNUNET_TESTING_daemons_stop (pg, TIMEOUT, &shutdown_callback, NULL);
 199   GNUNET_SCHEDULER_cancel (die_task);
 200 }
 201
 202 /**
 203  * Check if the get_handle is being used, if so stop the request.  Either
 204  * way, schedule the end_badly_cont function which actually shuts down the
 205  * test.
 206  */
 207 static void
 208 end_badly (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
 209 {
 210   GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Failing test with error: `%s'!\n",
 211               (char *) cls);
 212   GNUNET_SCHEDULER_add_now (&end_badly_cont, NULL);
 213   ok = 1;
 214 }
 215
 216 static void
 217 do_lookup(void *cls, const struct GNUNET_PeerIdentity *id,
 218           const struct GNUNET_CONFIGURATION_Handle *_cfg,
 219           struct GNUNET_TESTING_Daemon *d, const char *emsg)
 220 {
 221   struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded alice_pkey;
 222   struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded bob_pkey;
 223   struct GNUNET_CRYPTO_RsaPrivateKey *alice_key;
 224   struct GNUNET_CRYPTO_RsaPrivateKey *bob_key;
 225   struct GNUNET_CRYPTO_ShortHashCode bob_hash;
 226   struct GNUNET_CRYPTO_RsaSignature *sig;
 227   char* alice_keyfile;
 228   struct GNUNET_TIME_Absolute et;
 229
 230   cfg = _cfg;
 231
 232   GNUNET_SCHEDULER_cancel (die_task);
 233
 234   /* put records into namestore */
 235   namestore_handle = GNUNET_NAMESTORE_connect(cfg);
 236   if (NULL == namestore_handle)
 237   {
 238     GNUNET_log(GNUNET_ERROR_TYPE_ERROR, "Failed to connect to namestore\n");
 239     ok = -1;
 240     return;
 241   }
 242
 243   if (GNUNET_OK != GNUNET_CONFIGURATION_get_value_filename (cfg, "gns",
 244                                                           "ZONEKEY",
 245                                                           &alice_keyfile))
 246   {
 247     GNUNET_log(GNUNET_ERROR_TYPE_ERROR, "Failed to get key from cfg\n");
 248     ok = -1;
 249     return;
 250   }
 251
 252   alice_key = GNUNET_CRYPTO_rsa_key_create_from_file (alice_keyfile);
 253   bob_key = GNUNET_CRYPTO_rsa_key_create_from_file (KEYFILE_BOB);
 254
 255   GNUNET_CRYPTO_rsa_key_get_public (alice_key, &alice_pkey);
 256   GNUNET_CRYPTO_rsa_key_get_public (bob_key, &bob_pkey);
 257
 258   struct GNUNET_NAMESTORE_RecordData rd;
 259   char* ip = TEST_IP;
 260   struct in_addr *mail = GNUNET_malloc(sizeof(struct in_addr));
 261   char *mx_record;
 262   uint16_t mx_preference = 1;
 263   rd.expiration_time = UINT64_MAX;
 264   GNUNET_assert(1 == inet_pton (AF_INET, ip, mail));
 265
 266   GNUNET_CRYPTO_short_hash(&bob_pkey, sizeof(bob_pkey), &bob_hash);
 267
 268   rd.data_size = sizeof(struct GNUNET_CRYPTO_ShortHashCode);
 269   rd.data = &bob_hash;
 270   rd.record_type = GNUNET_GNS_RECORD_PKEY;
 271
 272   GNUNET_NAMESTORE_record_create (namestore_handle,
 273                                   alice_key,
 274                                   TEST_AUTHORITY_NAME,
 275                                   &rd,
 276                                   NULL,
 277                                   NULL);
 278
 279   rd.data_size = sizeof(struct in_addr);
 280   rd.data = mail;
 281   rd.record_type = GNUNET_DNSPARSER_TYPE_A;
 282   sig = GNUNET_NAMESTORE_create_signature(bob_key,
 283                                           GNUNET_TIME_UNIT_FOREVER_ABS,
 284                                           TEST_RECORD_NAME,
 285                                           &rd, 1);
 286   et.abs_value = rd.expiration_time;
 287   GNUNET_NAMESTORE_record_put (namestore_handle,
 288                                &bob_pkey,
 289                                TEST_RECORD_NAME,
 290                                et,
 291                                1,
 292                                &rd,
 293                                sig,
 294                                NULL,
 295                                NULL);
 296
 297   rd.data_size = sizeof(struct GNUNET_DNSPARSER_MxRecord)+strlen(TEST_MX_NAME)+1;
 298   mx_record = GNUNET_malloc(sizeof(uint16_t)+strlen(TEST_MX_NAME)+1);
 299   memcpy(mx_record, &mx_preference, sizeof(uint16_t));
 300   strcpy(mx_record+sizeof(uint16_t), TEST_MX_NAME);
 301   rd.data = mx_record;
 302   rd.record_type = GNUNET_GNS_RECORD_MX;
 303   sig = GNUNET_NAMESTORE_create_signature(bob_key,
 304                                           GNUNET_TIME_UNIT_FOREVER_ABS,
 305                                           "+",
 306                                           &rd, 1);
 307   et.abs_value = rd.expiration_time;
 308   GNUNET_NAMESTORE_record_put (namestore_handle,
 309                                &bob_pkey,
 310                                "+",
 311                                et,
 312                                1,
 313                                &rd,
 314                                sig,
 315                                &commence_testing,
 316                                NULL);
 317   GNUNET_free(mx_record);
 318   GNUNET_free(mail);
 319   GNUNET_free(sig);
 320   GNUNET_CRYPTO_rsa_key_free(bob_key);
 321   GNUNET_CRYPTO_rsa_key_free(alice_key);
 322 }
 323
 324 static void
 325 run (void *cls, char *const *args, const char *cfgfile,
 326      const struct GNUNET_CONFIGURATION_Handle *c)
 327 {
 328   cfg = c;
 329    /* Get path from configuration file */
 330   if (GNUNET_YES !=
 331       GNUNET_CONFIGURATION_get_value_string (cfg, "paths", "servicehome",
 332                                              &test_directory))
 333   {
 334     ok = 404;
 335     return;
 336   }
 337
 338
 339   /* Set up a task to end testing if peer start fails */
 340   die_task =
 341       GNUNET_SCHEDULER_add_delayed (TIMEOUT, &end_badly,
 342                                     "didn't start all daemons in reasonable amount of time!!!");
 343
 344   /* Start alice */
 345   pg = GNUNET_TESTING_daemons_start(cfg, 1, 1, 1, TIMEOUT,
 346                                     NULL, NULL, &do_lookup, NULL,
 347                                     NULL, NULL, NULL);
 348 }
 349
 350 static int
 351 check ()
 352 {
 353   int ret;
 354
 355   /* Arguments for GNUNET_PROGRAM_run */
 356   char *const argv[] = { "test-gns-simple-delegated-lookup", /* Name to give running binary */
 357     "-c",
 358     "test_gns_simple_lookup.conf",       /* Config file to use */
 359 #if VERBOSE
 360     "-L", "DEBUG",
 361 #endif
 362     NULL
 363   };
 364   struct GNUNET_GETOPT_CommandLineOption options[] = {
 365     GNUNET_GETOPT_OPTION_END
 366   };
 367   /* Run the run function as a new program */
 368   ret =
 369       GNUNET_PROGRAM_run ((sizeof (argv) / sizeof (char *)) - 1, argv,
 370                           "test-gns-simple-delegated-lookup", "nohelp", options, &run,
 371                           &ok);
 372   if (ret != GNUNET_OK)
 373   {
 374     GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
 375                 "`test-gns-simple-delegated-lookup': Failed with error code %d\n", ret);
 376   }
 377   return ok;
 378 }
 379
 380 int
 381 main (int argc, char *argv[])
 382 {
 383   int ret;
 384
 385   GNUNET_log_setup ("test-gns-simple-lookup",
 386 #if VERBOSE
 387                     "DEBUG",
 388 #else
 389                     "WARNING",
 390 #endif
 391                     NULL);
 392   ret = check ();
 393   /**
 394    * Need to remove base directory, subdirectories taken care
 395    * of by the testing framework.
 396    */
 397   return ret;
 398 }
 399
 400 /* end of test_gns_twopeer.c */