src/gns/test_gns_simple_srv_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_srv_lookup.c
  22  * @brief base testcase for testing GNS SRV 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 "_sip._tcp.bob.gnunet"
  46 #define TEST_IP "127.0.0.1"
  47 #define TEST_RECORD_NAME "sipserver"
  48 #define TEST_RECORD_NAME_SRV "_sip._tcp"
  49 #define TEST_SRV_NAME "sipserver.+"
  50 #define TEST_EXPECTED_SRV "sipserver.bob.gnunet"
  51
  52 #define TEST_AUTHORITY_NAME "bob"
  53
  54 #define KEYFILE_BOB "../namestore/zonefiles/HGU0A0VCU334DN7F2I9UIUMVQMM7JMSD142LIMNUGTTV9R0CF4EG.zkey"
  55
  56 /* Globals */
  57
  58 /**
  59  * Directory to store temp data in, defined in config file
  60  */
  61 static char *test_directory;
  62
  63 static struct GNUNET_TESTING_PeerGroup *pg;
  64
  65 /* Task handle to use to schedule test failure */
  66 GNUNET_SCHEDULER_TaskIdentifier die_task;
  67
  68 /* Global return value (0 for success, anything else for failure) */
  69 static int ok;
  70
  71 static struct GNUNET_NAMESTORE_Handle *namestore_handle;
  72
  73 static struct GNUNET_GNS_Handle *gns_handle;
  74
  75 const struct GNUNET_CONFIGURATION_Handle *cfg;
  76
  77 /**
  78  * Check whether peers successfully shut down.
  79  */
  80 void
  81 shutdown_callback (void *cls, const char *emsg)
  82 {
  83   if (emsg != NULL)
  84   {
  85     GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Error on shutdown! ret=%d\n", ok);
  86     if (ok == 0)
  87       ok = 2;
  88   }
  89
  90   GNUNET_log (GNUNET_ERROR_TYPE_INFO, "done(ret=%d)!\n", ok);
  91 }
  92
  93 static void
  94 on_lookup_result(void *cls, uint32_t rd_count,
  95                  const struct GNUNET_NAMESTORE_RecordData *rd)
  96 {
  97   int i;
  98   uint16_t *srv_data;
  99   char* srv;
 100
 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_TYPE_SRV)
 115       {
 116         srv_data = (uint16_t*)rd[i].data;
 117         srv = (char*)&srv_data[3];
 118         GNUNET_log (GNUNET_ERROR_TYPE_INFO,
 119                     "Got SRV %s with p=%d,w=%d,port=%d\n",
 120                     srv, srv_data, &srv_data[1], &srv_data[2]);
 121         if (0 == strcmp(srv, TEST_EXPECTED_SRV))
 122         {
 123           GNUNET_log (GNUNET_ERROR_TYPE_INFO,
 124                       "%s correctly resolved to %s!\n", TEST_DOMAIN,
 125                       TEST_EXPECTED_SRV);
 126           ok = 0;
 127         }
 128       }
 129     }
 130   }
 131
 132   GNUNET_GNS_disconnect(gns_handle);
 133   GNUNET_log (GNUNET_ERROR_TYPE_INFO, "Shutting down peer1!\n");
 134   GNUNET_TESTING_daemons_stop (pg, TIMEOUT, &shutdown_callback, NULL);
 135 }
 136
 137
 138 /**
 139  * Function scheduled to be run on the successful start of services
 140  * tries to look up the dns record for TEST_DOMAIN
 141  */
 142 static void
 143 commence_testing (void *cls, int32_t success, const char *emsg)
 144 {
 145   GNUNET_NAMESTORE_disconnect(namestore_handle, GNUNET_YES);
 146
 147   gns_handle = GNUNET_GNS_connect(cfg);
 148
 149   if (NULL == gns_handle)
 150   {
 151     GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
 152                 "Failed to connect to GNS!\n");
 153   }
 154
 155   GNUNET_GNS_lookup(gns_handle, TEST_DOMAIN, GNUNET_GNS_RECORD_TYPE_SRV,
 156                     GNUNET_NO,
 157                     NULL,
 158                     &on_lookup_result, TEST_DOMAIN);
 159 }
 160
 161 /**
 162  * Continuation for the GNUNET_DHT_get_stop call, so that we don't shut
 163  * down the peers without freeing memory associated with GET request.
 164  */
 165 static void
 166 end_badly_cont (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
 167 {
 168
 169   if (pg != NULL)
 170     GNUNET_TESTING_daemons_stop (pg, TIMEOUT, &shutdown_callback, NULL);
 171   GNUNET_SCHEDULER_cancel (die_task);
 172 }
 173
 174 /**
 175  * Check if the get_handle is being used, if so stop the request.  Either
 176  * way, schedule the end_badly_cont function which actually shuts down the
 177  * test.
 178  */
 179 static void
 180 end_badly (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
 181 {
 182   GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Failing test with error: `%s'!\n",
 183               (char *) cls);
 184   GNUNET_SCHEDULER_add_now (&end_badly_cont, NULL);
 185   ok = 1;
 186 }
 187
 188 GNUNET_NETWORK_STRUCT_BEGIN
 189 struct srv_data
 190 {
 191   uint16_t prio GNUNET_PACKED;
 192   uint16_t weight GNUNET_PACKED;
 193   uint16_t port GNUNET_PACKED;
 194 };
 195 GNUNET_NETWORK_STRUCT_END
 196
 197 static void
 198 do_lookup(void *cls, const struct GNUNET_PeerIdentity *id,
 199           const struct GNUNET_CONFIGURATION_Handle *_cfg,
 200           struct GNUNET_TESTING_Daemon *d, const char *emsg)
 201 {
 202   struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded alice_pkey;
 203   struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded bob_pkey;
 204   struct GNUNET_CRYPTO_RsaPrivateKey *alice_key;
 205   struct GNUNET_CRYPTO_RsaPrivateKey *bob_key;
 206   struct GNUNET_CRYPTO_ShortHashCode bob_hash;
 207   struct GNUNET_CRYPTO_RsaSignature *sig;
 208   char* alice_keyfile;
 209   struct srv_data *srv_data;
 210   struct GNUNET_TIME_Absolute et;
 211
 212   cfg = _cfg;
 213
 214   GNUNET_SCHEDULER_cancel (die_task);
 215
 216   /* put records into namestore */
 217   namestore_handle = GNUNET_NAMESTORE_connect(cfg);
 218   if (NULL == namestore_handle)
 219   {
 220     GNUNET_log(GNUNET_ERROR_TYPE_ERROR, "Failed to connect to namestore\n");
 221     ok = -1;
 222     return;
 223   }
 224
 225   if (GNUNET_OK != GNUNET_CONFIGURATION_get_value_filename (cfg, "gns",
 226                                                           "ZONEKEY",
 227                                                           &alice_keyfile))
 228   {
 229     GNUNET_log(GNUNET_ERROR_TYPE_ERROR, "Failed to get key from cfg\n");
 230     ok = -1;
 231     return;
 232   }
 233
 234   alice_key = GNUNET_CRYPTO_rsa_key_create_from_file (alice_keyfile);
 235   bob_key = GNUNET_CRYPTO_rsa_key_create_from_file (KEYFILE_BOB);
 236
 237   GNUNET_CRYPTO_rsa_key_get_public (alice_key, &alice_pkey);
 238   GNUNET_CRYPTO_rsa_key_get_public (bob_key, &bob_pkey);
 239
 240   struct GNUNET_NAMESTORE_RecordData rd;
 241   char* ip = TEST_IP;
 242   struct in_addr *sipserver = GNUNET_malloc (sizeof (struct in_addr));
 243   srv_data = GNUNET_malloc (sizeof (struct srv_data) + strlen (TEST_SRV_NAME) + 1);
 244   uint16_t srv_weight = 60;
 245   uint16_t srv_prio = 50;
 246   uint16_t srv_port = 5060;
 247
 248   rd.expiration_time = UINT64_MAX;
 249   GNUNET_assert(1 == inet_pton (AF_INET, ip, sipserver));
 250
 251   GNUNET_CRYPTO_short_hash(&bob_pkey, sizeof(bob_pkey), &bob_hash);
 252
 253   rd.data_size = sizeof(struct GNUNET_CRYPTO_ShortHashCode);
 254   rd.data = &bob_hash;
 255   rd.record_type = GNUNET_GNS_RECORD_PKEY;
 256   rd.flags = GNUNET_NAMESTORE_RF_AUTHORITY;
 257
 258   GNUNET_NAMESTORE_record_create (namestore_handle,
 259                                   alice_key,
 260                                   TEST_AUTHORITY_NAME,
 261                                   &rd,
 262                                   NULL,
 263                                   NULL);
 264
 265   rd.data_size = sizeof (struct in_addr);
 266   rd.data = sipserver;
 267   rd.record_type = GNUNET_DNSPARSER_TYPE_A;
 268   sig = GNUNET_NAMESTORE_create_signature(bob_key,
 269                                           GNUNET_TIME_UNIT_FOREVER_ABS,
 270                                           TEST_RECORD_NAME,
 271                                           &rd, 1);
 272   et.abs_value = rd.expiration_time;
 273   GNUNET_NAMESTORE_record_put (namestore_handle,
 274                                &bob_pkey,
 275                                TEST_RECORD_NAME,
 276                                et,
 277                                1,
 278                                &rd,
 279                                sig,
 280                                NULL,
 281                                NULL);
 282
 283   rd.data_size = sizeof (struct srv_data)+strlen(TEST_SRV_NAME)+1;
 284   srv_data->port = srv_port;
 285   srv_data->prio = srv_prio;
 286   srv_data->weight = srv_weight;
 287   strcpy((char*)&srv_data[1], TEST_SRV_NAME);
 288   rd.data = srv_data;
 289   rd.record_type = GNUNET_GNS_RECORD_TYPE_SRV;
 290   sig = GNUNET_NAMESTORE_create_signature(bob_key,
 291                                           GNUNET_TIME_UNIT_FOREVER_ABS,
 292                                           TEST_RECORD_NAME_SRV,
 293                                           &rd, 1);
 294   et.abs_value = rd.expiration_time;
 295   GNUNET_NAMESTORE_record_put (namestore_handle,
 296                                &bob_pkey,
 297                                TEST_RECORD_NAME_SRV,
 298                                et,
 299                                1,
 300                                &rd,
 301                                sig,
 302                                &commence_testing,
 303                                NULL);
 304   GNUNET_free(srv_data);
 305   GNUNET_free(sipserver);
 306   GNUNET_free(sig);
 307   GNUNET_CRYPTO_rsa_key_free(bob_key);
 308   GNUNET_CRYPTO_rsa_key_free(alice_key);
 309 }
 310
 311 static void
 312 run (void *cls, char *const *args, const char *cfgfile,
 313      const struct GNUNET_CONFIGURATION_Handle *c)
 314 {
 315   cfg = c;
 316    /* Get path from configuration file */
 317   if (GNUNET_YES !=
 318       GNUNET_CONFIGURATION_get_value_string (cfg, "paths", "servicehome",
 319                                              &test_directory))
 320   {
 321     ok = 404;
 322     return;
 323   }
 324
 325
 326   /* Set up a task to end testing if peer start fails */
 327   die_task =
 328       GNUNET_SCHEDULER_add_delayed (TIMEOUT, &end_badly,
 329                                     "didn't start all daemons in reasonable amount of time!!!");
 330
 331   /* Start alice */
 332   pg = GNUNET_TESTING_daemons_start(cfg, 1, 1, 1, TIMEOUT,
 333                                     NULL, NULL, &do_lookup, NULL,
 334                                     NULL, NULL, NULL);
 335 }
 336
 337 static int
 338 check ()
 339 {
 340   int ret;
 341
 342   /* Arguments for GNUNET_PROGRAM_run */
 343   char *const argv[] = { "test-gns-simple-mx-lookup", /* Name to give running binary */
 344     "-c",
 345     "test_gns_simple_lookup.conf",       /* Config file to use */
 346 #if VERBOSE
 347     "-L", "DEBUG",
 348 #endif
 349     NULL
 350   };
 351   struct GNUNET_GETOPT_CommandLineOption options[] = {
 352     GNUNET_GETOPT_OPTION_END
 353   };
 354   /* Run the run function as a new program */
 355   ret =
 356       GNUNET_PROGRAM_run ((sizeof (argv) / sizeof (char *)) - 1, argv,
 357                           "test-gns-simple-mx-lookup", "nohelp", options, &run,
 358                           &ok);
 359   if (ret != GNUNET_OK)
 360   {
 361     GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
 362                 "`test-gns-simple-mx-lookup': Failed with error code %d\n", ret);
 363   }
 364   return ok;
 365 }
 366
 367 int
 368 main (int argc, char *argv[])
 369 {
 370   int ret;
 371
 372   GNUNET_log_setup ("test-gns-simple-mx-lookup",
 373 #if VERBOSE
 374                     "DEBUG",
 375 #else
 376                     "WARNING",
 377 #endif
 378                     NULL);
 379   ret = check ();
 380   /**
 381    * Need to remove base directory, subdirectories taken care
 382    * of by the testing framework.
 383    */
 384   return ret;
 385 }
 386
 387 /* end of test_gns_simple_mx_lookup.c */