src/gns/test_gns_cname_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_cname_lookup.c
  22  * @brief base testcase for testing a local GNS record lookup
  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 "gnunet_dnsparser_lib.h"
  32 #include "gnunet_gns_service.h"
  33
  34 /* DEFINES */
  35 #define VERBOSE GNUNET_YES
  36
  37 /* Timeout for entire testcase */
  38 #define TIMEOUT GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 20)
  39
  40 /* If number of peers not in config file, use this number */
  41 #define DEFAULT_NUM_PEERS 2
  42
  43 /* test records to resolve */
  44 #define TEST_DOMAIN "www.gnunet"
  45 #define TEST_IP "127.0.0.1"
  46 #define TEST_RECORD_NAME "server"
  47 #define TEST_RECORD_CNAME "www"
  48
  49 /* Globals */
  50
  51 /**
  52  * Directory to store temp data in, defined in config file
  53  */
  54 static char *test_directory;
  55
  56 static struct GNUNET_TESTING_PeerGroup *pg;
  57
  58 /* Task handle to use to schedule test failure */
  59 GNUNET_SCHEDULER_TaskIdentifier die_task;
  60
  61 /* Global return value (0 for success, anything else for failure) */
  62 static int ok;
  63
  64 static struct GNUNET_NAMESTORE_Handle *namestore_handle;
  65
  66 static struct GNUNET_GNS_Handle *gns_handle;
  67
  68 const struct GNUNET_CONFIGURATION_Handle *cfg;
  69
  70 /**
  71  * Check whether peers successfully shut down.
  72  */
  73 void
  74 shutdown_callback (void *cls, const char *emsg)
  75 {
  76   if (emsg != NULL)
  77   {
  78     GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Error on shutdown! ret=%d\n", ok);
  79     if (ok == 0)
  80       ok = 2;
  81   }
  82
  83   GNUNET_log (GNUNET_ERROR_TYPE_INFO, "done(ret=%d)!\n", ok);
  84 }
  85
  86
  87 static void
  88 on_lookup_result_cname (void *cls, uint32_t rd_count,
  89                  const struct GNUNET_NAMESTORE_RecordData *rd)
  90 {
  91   int i;
  92
  93   if (rd_count == 0)
  94   {
  95     GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
  96                 "Lookup failed, rp_filtering?\n");
  97     ok = 2;
  98   }
  99   else
 100   {
 101     ok = 1;
 102     GNUNET_log (GNUNET_ERROR_TYPE_INFO, "name: %s\n", (char*)cls);
 103     for (i=0; i<rd_count; i++)
 104     {
 105       GNUNET_log (GNUNET_ERROR_TYPE_INFO, "type: %d\n", rd[i].record_type);
 106       if (rd[i].record_type == GNUNET_GNS_RECORD_TYPE_CNAME)
 107       {
 108         GNUNET_log (GNUNET_ERROR_TYPE_INFO, "CNAME: %s\n", rd[i].data);
 109         if (0 == strcmp(rd[i].data, TEST_RECORD_NAME))
 110         {
 111           GNUNET_log (GNUNET_ERROR_TYPE_INFO,
 112                     "%s correctly resolved to %s!\n", TEST_DOMAIN, rd[i].data);
 113           ok = 0;
 114         }
 115       }
 116       else
 117       {
 118         GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "No resolution!\n");
 119       }
 120     }
 121   }
 122   GNUNET_GNS_disconnect(gns_handle);
 123   GNUNET_log (GNUNET_ERROR_TYPE_INFO, "Shutting down peer1!\n");
 124   GNUNET_TESTING_daemons_stop (pg, TIMEOUT, &shutdown_callback, NULL);
 125 }
 126 static void
 127 on_lookup_result(void *cls, uint32_t rd_count,
 128                  const struct GNUNET_NAMESTORE_RecordData *rd)
 129 {
 130   struct in_addr a;
 131   int i;
 132   char* addr;
 133
 134   if (rd_count == 0)
 135   {
 136     GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
 137                 "Lookup failed, rp_filtering?\n");
 138     ok = 2;
 139   }
 140   else
 141   {
 142     ok = 1;
 143     GNUNET_log (GNUNET_ERROR_TYPE_INFO, "name: %s\n", (char*)cls);
 144     for (i=0; i<rd_count; i++)
 145     {
 146       GNUNET_log (GNUNET_ERROR_TYPE_INFO, "type: %d\n", rd[i].record_type);
 147       if (rd[i].record_type == GNUNET_GNS_RECORD_TYPE_A)
 148       {
 149         memcpy(&a, rd[i].data, sizeof(a));
 150         addr = inet_ntoa(a);
 151         GNUNET_log (GNUNET_ERROR_TYPE_INFO, "address: %s\n", addr);
 152         if (0 == strcmp(addr, TEST_IP))
 153         {
 154           GNUNET_log (GNUNET_ERROR_TYPE_INFO,
 155                     "%s correctly resolved to %s!\n", TEST_DOMAIN, addr);
 156           ok = 0;
 157         }
 158       }
 159       else
 160       {
 161         GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "No resolution!\n");
 162       }
 163     }
 164   }
 165
 166   GNUNET_GNS_lookup(gns_handle, TEST_DOMAIN, GNUNET_GNS_RECORD_TYPE_CNAME,
 167                     GNUNET_YES,
 168                     NULL,
 169                     &on_lookup_result_cname, TEST_DOMAIN);
 170 }
 171
 172
 173 /**
 174  * Function scheduled to be run on the successful start of services
 175  * tries to look up the dns record for TEST_DOMAIN
 176  */
 177 static void
 178 commence_testing (void *cls, int32_t success, const char *emsg)
 179 {
 180
 181
 182   GNUNET_NAMESTORE_disconnect(namestore_handle, GNUNET_YES);
 183
 184   gns_handle = GNUNET_GNS_connect(cfg);
 185
 186   if (NULL == gns_handle)
 187   {
 188     GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
 189                 "Failed to connect to GNS!\n");
 190     ok = 2;
 191   }
 192
 193   GNUNET_GNS_lookup(gns_handle, TEST_DOMAIN, GNUNET_GNS_RECORD_TYPE_A,
 194                     GNUNET_YES,
 195                     NULL,
 196                     &on_lookup_result, TEST_DOMAIN);
 197 }
 198
 199
 200 /**
 201  * Continuation for the GNUNET_DHT_get_stop call, so that we don't shut
 202  * down the peers without freeing memory associated with GET request.
 203  */
 204 static void
 205 end_badly_cont (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
 206 {
 207
 208   if (pg != NULL)
 209     GNUNET_TESTING_daemons_stop (pg, TIMEOUT, &shutdown_callback, NULL);
 210   GNUNET_SCHEDULER_cancel (die_task);
 211 }
 212
 213 /**
 214  * Check if the get_handle is being used, if so stop the request.  Either
 215  * way, schedule the end_badly_cont function which actually shuts down the
 216  * test.
 217  */
 218 static void
 219 end_badly (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
 220 {
 221   GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Failing test with error: `%s'!\n",
 222               (char *) cls);
 223   GNUNET_SCHEDULER_add_now (&end_badly_cont, NULL);
 224   ok = 1;
 225 }
 226
 227 static void
 228 do_lookup(void *cls, const struct GNUNET_PeerIdentity *id,
 229           const struct GNUNET_CONFIGURATION_Handle *_cfg,
 230           struct GNUNET_TESTING_Daemon *d, const char *emsg)
 231 {
 232   struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded alice_pkey;
 233   struct GNUNET_CRYPTO_RsaPrivateKey *alice_key;
 234   char* alice_keyfile;
 235
 236   cfg = _cfg;
 237
 238   GNUNET_SCHEDULER_cancel (die_task);
 239
 240   /* put records into namestore */
 241   namestore_handle = GNUNET_NAMESTORE_connect(cfg);
 242   if (NULL == namestore_handle)
 243   {
 244     GNUNET_log(GNUNET_ERROR_TYPE_ERROR, "Failed to connect to namestore\n");
 245     ok = -1;
 246     return;
 247   }
 248
 249   if (GNUNET_OK != GNUNET_CONFIGURATION_get_value_filename (cfg, "gns",
 250                                                           "ZONEKEY",
 251                                                           &alice_keyfile))
 252   {
 253     GNUNET_log(GNUNET_ERROR_TYPE_ERROR, "Failed to get key from cfg\n");
 254     ok = -1;
 255     return;
 256   }
 257
 258   alice_key = GNUNET_CRYPTO_rsa_key_create_from_file (alice_keyfile);
 259
 260   GNUNET_CRYPTO_rsa_key_get_public (alice_key, &alice_pkey);
 261
 262   GNUNET_free(alice_keyfile);
 263
 264   struct GNUNET_NAMESTORE_RecordData rd;
 265   char* ip = TEST_IP;
 266   struct in_addr *web = GNUNET_malloc(sizeof(struct in_addr));
 267   rd.expiration_time = UINT64_MAX;
 268   GNUNET_assert(1 == inet_pton (AF_INET, ip, web));
 269   rd.data_size = sizeof(struct in_addr);
 270   rd.data = web;
 271   rd.record_type = GNUNET_DNSPARSER_TYPE_A;
 272   rd.flags = 0;
 273
 274   GNUNET_NAMESTORE_record_create (namestore_handle,
 275                                   alice_key,
 276                                   TEST_RECORD_NAME,
 277                                   &rd,
 278                                   NULL,
 279                                   NULL);
 280
 281   rd.data_size = strlen (TEST_RECORD_NAME);
 282   rd.data = TEST_RECORD_NAME;
 283   rd.record_type = GNUNET_GNS_RECORD_TYPE_CNAME;
 284
 285   GNUNET_NAMESTORE_record_create (namestore_handle,
 286                                   alice_key,
 287                                   TEST_RECORD_CNAME,
 288                                   &rd,
 289                                   &commence_testing,
 290                                   NULL);
 291
 292   GNUNET_CRYPTO_rsa_key_free(alice_key);
 293   GNUNET_free(web);
 294
 295 }
 296
 297 static void
 298 run (void *cls, char *const *args, const char *cfgfile,
 299      const struct GNUNET_CONFIGURATION_Handle *c)
 300 {
 301   cfg = c;
 302    /* Get path from configuration file */
 303   if (GNUNET_YES !=
 304       GNUNET_CONFIGURATION_get_value_string (cfg, "paths", "servicehome",
 305                                              &test_directory))
 306   {
 307     ok = 404;
 308     return;
 309   }
 310
 311
 312   /* Set up a task to end testing if peer start fails */
 313   die_task =
 314       GNUNET_SCHEDULER_add_delayed (TIMEOUT, &end_badly,
 315                                     "didn't start all daemons in reasonable amount of time!!!");
 316
 317   /* Start alice */
 318   pg = GNUNET_TESTING_daemons_start(cfg, 1, 1, 1, TIMEOUT,
 319                                     NULL, NULL, &do_lookup, NULL,
 320                                     NULL, NULL, NULL);
 321 }
 322
 323 static int
 324 check ()
 325 {
 326   int ret;
 327
 328   /* Arguments for GNUNET_PROGRAM_run */
 329   char *const argv[] = { "test-gns-simple-lookup", /* Name to give running binary */
 330     "-c",
 331     "test_gns_simple_lookup.conf",       /* Config file to use */
 332 #if VERBOSE
 333     "-L", "DEBUG",
 334 #endif
 335     NULL
 336   };
 337   struct GNUNET_GETOPT_CommandLineOption options[] = {
 338     GNUNET_GETOPT_OPTION_END
 339   };
 340   /* Run the run function as a new program */
 341   ret =
 342       GNUNET_PROGRAM_run ((sizeof (argv) / sizeof (char *)) - 1, argv,
 343                           "test-gns-simple-lookup", "nohelp", options, &run,
 344                           &ok);
 345   if (ret != GNUNET_OK)
 346   {
 347     GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
 348                 "`test-gns-simple-lookup': Failed with error code %d\n", ret);
 349   }
 350   return ok;
 351 }
 352
 353 int
 354 main (int argc, char *argv[])
 355 {
 356   int ret;
 357
 358   GNUNET_log_setup ("test-gns-simple-lookup",
 359 #if VERBOSE
 360                     "DEBUG",
 361 #else
 362                     "WARNING",
 363 #endif
 364                     NULL);
 365   ret = check ();
 366   /**
 367    * Need to remove base directory, subdirectories taken care
 368    * of by the testing framework.
 369    */
 370   return ret;
 371 }
 372
 373 /* end of test_gns_twopeer.c */