src/gns/test_gns_cname_lookup.c

   1 /*
   2      This file is part of GNUnet.
   3      (C) 2012 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  * @author Martin Schanzenbach
  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
  35 /**
  36  * Timeout for entire testcase
  37  */
  38 #define TIMEOUT GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 20)
  39
  40 /* test records to resolve */
  41 #define TEST_DOMAIN_PLUS "www.gads"
  42 #define TEST_DOMAIN_ZKEY "www2.gads"
  43 #define TEST_DOMAIN_DNS  "www3.gads"
  44 #define TEST_IP_PLUS "127.0.0.1"
  45 #define TEST_IP_ZKEY "127.0.0.2"
  46 #define TEST_IP_DNS  "131.159.74.67"
  47 #define TEST_RECORD_CNAME_SERVER "server.gads"
  48 #define TEST_RECORD_CNAME_PLUS "server.+"
  49 #define TEST_RECORD_CNAME_ZKEY "www.J7POEUT41A8PBFS7KVVDRF88GBOU4HK8PSU5QKVLVE3R9T91E99G.zkey"
  50 #define TEST_RECORD_CNAME_DNS "gnunet.org"
  51 #define TEST_RECORD_NAME_SERVER "server"
  52 #define TEST_RECORD_NAME_PLUS "www"
  53 #define TEST_RECORD_NAME_ZKEY "www2"
  54 #define TEST_RECORD_NAME_DNS "www3"
  55
  56 #define KEYFILE_BOB "zonefiles/J7POEUT41A8PBFS7KVVDRF88GBOU4HK8PSU5QKVLVE3R9T91E99G.zkey"
  57
  58
  59 /* Task handle to use to schedule test failure */
  60 static GNUNET_SCHEDULER_TaskIdentifier die_task;
  61
  62 /* Global return value (0 for success, anything else for failure) */
  63 static int ok;
  64
  65 static struct GNUNET_NAMESTORE_Handle *namestore_handle;
  66
  67 static struct GNUNET_GNS_Handle *gns_handle;
  68
  69 static const struct GNUNET_CONFIGURATION_Handle *cfg;
  70
  71
  72 /**
  73  * Check if the get_handle is being used, if so stop the request.  Either
  74  * way, schedule the end_badly_cont function which actually shuts down the
  75  * test.
  76  */
  77 static void
  78 end_badly (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
  79 {
  80   die_task = GNUNET_SCHEDULER_NO_TASK;
  81   if (NULL != gns_handle)
  82   {
  83     GNUNET_GNS_disconnect (gns_handle);
  84     gns_handle = NULL;
  85   }
  86   if (NULL != namestore_handle)
  87   {
  88     GNUNET_NAMESTORE_disconnect (namestore_handle);
  89     namestore_handle = NULL;
  90   }
  91   GNUNET_break (0);
  92   GNUNET_SCHEDULER_shutdown ();
  93   ok = 1;
  94 }
  95
  96
  97 static void
  98 shutdown_task (void *cls,
  99                const struct GNUNET_SCHEDULER_TaskContext *tc)
 100 {
 101   GNUNET_GNS_disconnect (gns_handle);
 102   gns_handle = NULL;
 103   GNUNET_log (GNUNET_ERROR_TYPE_INFO, "Shutting down peer!\n");
 104   GNUNET_SCHEDULER_shutdown ();
 105 }
 106
 107
 108 static void
 109 on_lookup_result_cname (void *cls,
 110                         uint32_t rd_count,
 111                         const struct GNUNET_NAMESTORE_RecordData *rd)
 112 {
 113   uint32_t i;
 114
 115   if (GNUNET_SCHEDULER_NO_TASK != die_task)
 116   {
 117       GNUNET_SCHEDULER_cancel (die_task);
 118       die_task = GNUNET_SCHEDULER_NO_TASK;
 119   }
 120   GNUNET_NAMESTORE_disconnect (namestore_handle);
 121   namestore_handle = NULL;
 122   if (rd_count == 0)
 123   {
 124     GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
 125                 "Lookup failed, rp_filtering?\n");
 126     ok = 2;
 127   }
 128   else
 129   {
 130     ok = 1;
 131     GNUNET_log (GNUNET_ERROR_TYPE_INFO, "name: %s\n", (char*)cls);
 132     for (i=0; i<rd_count; i++)
 133     {
 134       GNUNET_log (GNUNET_ERROR_TYPE_INFO, "type: %d\n", rd[i].record_type);
 135       if (rd[i].record_type == GNUNET_DNSPARSER_TYPE_CNAME)
 136       {
 137         GNUNET_log (GNUNET_ERROR_TYPE_INFO, "CNAME: %s\n", rd[i].data);
 138         if (0 == strcmp(rd[i].data, TEST_RECORD_CNAME_SERVER))
 139         {
 140           GNUNET_log (GNUNET_ERROR_TYPE_INFO,
 141                     "%s correctly resolved to %s!\n", TEST_DOMAIN_PLUS, rd[i].data);
 142           ok = 0;
 143         }
 144       }
 145       else
 146       {
 147         GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "No resolution!\n");
 148       }
 149     }
 150   }
 151   GNUNET_SCHEDULER_add_now (&shutdown_task, NULL);
 152 }
 153
 154
 155 static void
 156 on_lookup_result_dns (void *cls,
 157                       uint32_t rd_count,
 158                       const struct GNUNET_NAMESTORE_RecordData *rd)
 159 {
 160   struct in_addr a;
 161   uint32_t i;
 162   char* addr;
 163
 164   if (rd_count == 0)
 165   {
 166     GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
 167                 "CNAME to DNS delegation failed. System offline?\n");
 168   }
 169   else
 170   {
 171     ok = 1;
 172     GNUNET_log (GNUNET_ERROR_TYPE_INFO, "name: %s\n", (char*)cls);
 173     for (i=0; i<rd_count; i++)
 174     {
 175       GNUNET_log (GNUNET_ERROR_TYPE_INFO, "type: %d\n", rd[i].record_type);
 176       if (rd[i].record_type == GNUNET_DNSPARSER_TYPE_A)
 177       {
 178         memcpy(&a, rd[i].data, sizeof(a));
 179         addr = inet_ntoa(a);
 180         GNUNET_log (GNUNET_ERROR_TYPE_INFO, "address: %s\n", addr);
 181         if (0 == strcmp(addr, TEST_IP_DNS))
 182         {
 183           GNUNET_log (GNUNET_ERROR_TYPE_INFO,
 184                       "%s correctly resolved to %s!\n", TEST_DOMAIN_DNS, addr);
 185           ok = 0;
 186         }
 187       }
 188       else
 189       {
 190         GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "No resolution!\n");
 191       }
 192     }
 193   }
 194   GNUNET_GNS_lookup (gns_handle, TEST_DOMAIN_PLUS, GNUNET_DNSPARSER_TYPE_CNAME,
 195                      GNUNET_YES,
 196                      NULL,
 197                      &on_lookup_result_cname, TEST_DOMAIN_PLUS);
 198 }
 199
 200
 201 static void
 202 on_lookup_result_zkey (void *cls, uint32_t rd_count,
 203                        const struct GNUNET_NAMESTORE_RecordData *rd)
 204 {
 205   struct in_addr a;
 206   uint32_t i;
 207   char* addr;
 208
 209   if (rd_count == 0)
 210   {
 211     GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
 212                 "Lookup failed, rp_filtering?\n");
 213     ok = 2;
 214     GNUNET_SCHEDULER_shutdown ();
 215     return;
 216   }
 217   ok = 1;
 218   GNUNET_log (GNUNET_ERROR_TYPE_INFO,
 219               "name: %s\n", (char*)cls);
 220   for (i=0; i<rd_count; i++)
 221   {
 222     GNUNET_log (GNUNET_ERROR_TYPE_INFO,
 223                 "type: %d\n", rd[i].record_type);
 224     if (rd[i].record_type == GNUNET_DNSPARSER_TYPE_A)
 225     {
 226       memcpy (&a, rd[i].data, sizeof(a));
 227       addr = inet_ntoa(a);
 228       GNUNET_log (GNUNET_ERROR_TYPE_INFO,
 229                   "address: %s\n", addr);
 230       if (0 == strcmp (addr, TEST_IP_ZKEY))
 231       {
 232         GNUNET_log (GNUNET_ERROR_TYPE_INFO,
 233                     "%s correctly resolved to %s!\n",
 234                     TEST_DOMAIN_ZKEY, addr);
 235         ok = 0;
 236       }
 237     }
 238     else
 239     {
 240       GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
 241                   "No resolution!\n");
 242     }
 243   }
 244   GNUNET_GNS_lookup (gns_handle, TEST_DOMAIN_DNS, GNUNET_DNSPARSER_TYPE_A,
 245                      GNUNET_YES,
 246                      NULL,
 247                      &on_lookup_result_dns, TEST_DOMAIN_DNS);
 248 }
 249
 250
 251 static void
 252 on_lookup_result_plus (void *cls, uint32_t rd_count,
 253                        const struct GNUNET_NAMESTORE_RecordData *rd)
 254 {
 255   struct in_addr a;
 256   uint32_t i;
 257   char* addr;
 258
 259   if (rd_count == 0)
 260   {
 261     GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
 262                 "Lookup failed, rp_filtering?\n");
 263     ok = 2;
 264     GNUNET_SCHEDULER_shutdown ();
 265     return;
 266   }
 267   ok = 1;
 268   GNUNET_log (GNUNET_ERROR_TYPE_INFO, "name: %s\n", (char*)cls);
 269   for (i=0; i<rd_count; i++)
 270   {
 271     GNUNET_log (GNUNET_ERROR_TYPE_INFO, "type: %d\n", rd[i].record_type);
 272     if (rd[i].record_type == GNUNET_DNSPARSER_TYPE_A)
 273     {
 274       memcpy(&a, rd[i].data, sizeof(a));
 275       addr = inet_ntoa(a);
 276       GNUNET_log (GNUNET_ERROR_TYPE_INFO, "address: %s\n", addr);
 277       if (0 == strcmp(addr, TEST_IP_PLUS))
 278       {
 279         GNUNET_log (GNUNET_ERROR_TYPE_INFO,
 280                     "%s correctly resolved to %s!\n", TEST_DOMAIN_PLUS, addr);
 281         ok = 0;
 282       }
 283     }
 284     else
 285     {
 286       GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "No resolution!\n");
 287     }
 288   }
 289   GNUNET_GNS_lookup (gns_handle, TEST_DOMAIN_ZKEY, GNUNET_DNSPARSER_TYPE_A,
 290                      GNUNET_YES,
 291                      NULL,
 292                      &on_lookup_result_zkey, TEST_DOMAIN_ZKEY);
 293 }
 294
 295
 296 /**
 297  * Function scheduled to be run on the successful start of services
 298  * tries to look up the dns record for TEST_DOMAIN
 299  *
 300  * @param cls closure
 301  * @param success GNUNET_SYSERR on failure (including timeout/queue drop/failure to validate)
 302  *                GNUNET_NO if content was already there or not found
 303  *                GNUNET_YES (or other positive value) on success
 304  * @param emsg NULL on success, otherwise an error message
 305  */
 306 static void
 307 commence_testing (void *cls, int32_t success, const char *emsg)
 308 {
 309   if (NULL != emsg)
 310   {
 311     GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
 312                 "Failed to store record in namestore: %s\n",
 313                 emsg);
 314     GNUNET_SCHEDULER_shutdown ();
 315     return;
 316   }
 317   gns_handle = GNUNET_GNS_connect(cfg);
 318   if (NULL == gns_handle)
 319   {
 320     GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
 321                 "Failed to connect to GNS!\n");
 322     GNUNET_SCHEDULER_shutdown ();
 323     return;
 324   }
 325   GNUNET_GNS_lookup (gns_handle, TEST_DOMAIN_PLUS, GNUNET_DNSPARSER_TYPE_A,
 326                      GNUNET_YES,
 327                      NULL,
 328                      &on_lookup_result_plus, TEST_DOMAIN_PLUS);
 329 }
 330
 331
 332 static void
 333 do_check (void *cls,
 334           const struct GNUNET_CONFIGURATION_Handle *ccfg,
 335           struct GNUNET_TESTING_Peer *peer)
 336 {
 337   struct GNUNET_CRYPTO_EccPublicKey alice_pkey;
 338   struct GNUNET_CRYPTO_EccPrivateKey *alice_key;
 339   struct GNUNET_CRYPTO_EccPrivateKey *bob_key;
 340   char* alice_keyfile;
 341   struct GNUNET_NAMESTORE_RecordData rd;
 342   const char* ip = TEST_IP_PLUS;
 343   struct in_addr web;
 344
 345   cfg = ccfg;
 346   die_task = GNUNET_SCHEDULER_add_delayed (TIMEOUT, &end_badly, NULL);
 347
 348   /* put records into namestore */
 349   namestore_handle = GNUNET_NAMESTORE_connect(cfg);
 350   if (NULL == namestore_handle)
 351   {
 352     GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
 353                 "Failed to connect to namestore\n");
 354     GNUNET_SCHEDULER_shutdown ();
 355     return;
 356   }
 357
 358   if (GNUNET_OK != GNUNET_CONFIGURATION_get_value_filename (cfg, "gns",
 359                                                           "ZONEKEY",
 360                                                           &alice_keyfile))
 361   {
 362     GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
 363                 "Failed to get key from cfg\n");
 364     GNUNET_SCHEDULER_shutdown ();
 365     return;
 366   }
 367
 368   alice_key = GNUNET_CRYPTO_ecc_key_create_from_file (alice_keyfile);
 369   GNUNET_CRYPTO_ecc_key_get_public (alice_key, &alice_pkey);
 370   GNUNET_free(alice_keyfile);
 371
 372   bob_key = GNUNET_CRYPTO_ecc_key_create_from_file (KEYFILE_BOB);
 373
 374   rd.expiration_time = UINT64_MAX;
 375   GNUNET_assert(1 == inet_pton (AF_INET, ip, &web));
 376   rd.data_size = sizeof(struct in_addr);
 377   rd.data = &web;
 378   rd.record_type = GNUNET_DNSPARSER_TYPE_A;
 379   rd.flags = GNUNET_NAMESTORE_RF_AUTHORITY;
 380
 381   GNUNET_NAMESTORE_record_put_by_authority (namestore_handle,
 382                                             alice_key,
 383                                             TEST_RECORD_NAME_SERVER,
 384                                             1, &rd,
 385                                             NULL,
 386                                             NULL);
 387
 388   rd.data_size = strlen (TEST_RECORD_CNAME_PLUS);
 389   rd.data = TEST_RECORD_CNAME_PLUS;
 390   rd.record_type = GNUNET_DNSPARSER_TYPE_CNAME;
 391
 392   GNUNET_NAMESTORE_record_put_by_authority (namestore_handle,
 393                                             alice_key,
 394                                             TEST_RECORD_NAME_PLUS,
 395                                             1, &rd,
 396                                             NULL,
 397                                             NULL);
 398
 399   rd.data_size = strlen (TEST_RECORD_CNAME_ZKEY);
 400   rd.data = TEST_RECORD_CNAME_ZKEY;
 401   rd.record_type = GNUNET_DNSPARSER_TYPE_CNAME;
 402
 403   GNUNET_NAMESTORE_record_put_by_authority (namestore_handle,
 404                                             alice_key,
 405                                             TEST_RECORD_NAME_ZKEY,
 406                                             1, &rd,
 407                                             NULL,
 408                                             NULL);
 409
 410   rd.data_size = strlen (TEST_RECORD_CNAME_DNS);
 411   rd.data = TEST_RECORD_CNAME_DNS;
 412   rd.record_type = GNUNET_DNSPARSER_TYPE_CNAME;
 413
 414   GNUNET_NAMESTORE_record_put_by_authority (namestore_handle,
 415                                             alice_key,
 416                                             TEST_RECORD_NAME_DNS,
 417                                             1, &rd,
 418                                             NULL,
 419                                             NULL);
 420
 421   GNUNET_assert(1 == inet_pton (AF_INET, TEST_IP_ZKEY, &web));
 422   rd.data_size = sizeof(struct in_addr);
 423   rd.data = &web;
 424   rd.record_type = GNUNET_DNSPARSER_TYPE_A;
 425
 426   GNUNET_NAMESTORE_record_put_by_authority (namestore_handle,
 427                                             bob_key,
 428                                             TEST_RECORD_NAME_PLUS,
 429                                             1, &rd,
 430                                             &commence_testing,
 431                                             NULL);
 432   GNUNET_CRYPTO_ecc_key_free(alice_key);
 433   GNUNET_CRYPTO_ecc_key_free(bob_key);
 434 }
 435
 436
 437 int
 438 main (int argc, char *argv[])
 439 {
 440   ok = 1;
 441
 442   GNUNET_log_setup ("test-gns-simple-cname-lookup",
 443                     "WARNING",
 444                     NULL);
 445   GNUNET_TESTING_peer_run ("test-gns-simple-cname-lookup", "test_gns_simple_lookup.conf", &do_check, NULL);
 446   return ok;
 447 }
 448
 449 /* end of test_gns_cname_lookup.c */