src/namestore/test_namestore_api_lookup_shadow_filter.c

   1 /*
   2      This file is part of GNUnet.
   3      Copyright (C) 2012 GNUnet e.V.
   4
   5      GNUnet is free software: you can redistribute it and/or modify it
   6      under the terms of the GNU Affero General Public License as published
   7      by the Free Software Foundation, either version 3 of the License,
   8      or (at your 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      Affero General Public License for more details.
  14
  15      You should have received a copy of the GNU Affero General Public License
  16      along with this program.  If not, see <http://www.gnu.org/licenses/>.
  17
  18      SPDX-License-Identifier: AGPL3.0-or-later
  19  */
  20 /**
  21  * @file namestore/test_namestore_api_lookup_shadow_filter.c
  22  * @brief testcase for namestore_api.c: store a record with short expiration
  23  *      and a shadow record, perform lookup:
  24  *      - when active record is valid, expect only active record
  25  *      - when active record is expired, expect shadow record only
  26  */
  27 #include "platform.h"
  28 #include "gnunet_namecache_service.h"
  29 #include "gnunet_namestore_service.h"
  30 #include "gnunet_testing_lib.h"
  31 #include "gnunet_dnsparser_lib.h"
  32
  33 #define TEST_RECORD_TYPE GNUNET_DNSPARSER_TYPE_TXT
  34
  35 #define TEST_NAME "dummy.dummy.gnunet"
  36 #define TEST_RECORD_DATALEN 123
  37 #define TEST_RECORD_DATA 'a'
  38 #define TEST_SHADOW_RECORD_DATA 'b'
  39
  40 #define TIMEOUT GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 100)
  41 #define EXPIRATION GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 5)
  42
  43 static struct GNUNET_NAMESTORE_Handle *nsh;
  44
  45 static struct GNUNET_NAMECACHE_Handle *nch;
  46
  47 static struct GNUNET_SCHEDULER_Task * endbadly_task;
  48
  49 static struct GNUNET_SCHEDULER_Task * delayed_lookup_task;
  50
  51 static struct GNUNET_CRYPTO_EcdsaPrivateKey *privkey;
  52
  53 static struct GNUNET_CRYPTO_EcdsaPublicKey pubkey;
  54
  55 static int res;
  56
  57 static struct GNUNET_NAMESTORE_QueueEntry *nsqe;
  58
  59 static struct GNUNET_NAMECACHE_QueueEntry *ncqe;
  60
  61 static struct GNUNET_NAMECACHE_QueueEntry *ncqe_shadow;
  62
  63 static struct GNUNET_GNSRECORD_Data records[2];
  64
  65 static struct GNUNET_TIME_Absolute record_expiration;
  66
  67 static struct GNUNET_HashCode derived_hash;
  68
  69 static struct GNUNET_CRYPTO_EcdsaPublicKey pubkey;
  70
  71
  72 static void
  73 cleanup()
  74 {
  75   if (NULL != nsh)
  76     {
  77       GNUNET_NAMESTORE_disconnect(nsh);
  78       nsh = NULL;
  79     }
  80   if (NULL != nch)
  81     {
  82       GNUNET_NAMECACHE_disconnect(nch);
  83       nch = NULL;
  84     }
  85   if (NULL != privkey)
  86     {
  87       GNUNET_free(privkey);
  88       privkey = NULL;
  89     }
  90   GNUNET_SCHEDULER_shutdown();
  91 }
  92
  93
  94 /**
  95  * Re-establish the connection to the service.
  96  *
  97  * @param cls handle to use to re-connect.
  98  */
  99 static void
 100 endbadly(void *cls)
 101 {
 102   if (NULL != delayed_lookup_task)
 103     {
 104       GNUNET_SCHEDULER_cancel(delayed_lookup_task);
 105       delayed_lookup_task = NULL;
 106     }
 107   if (NULL != nsqe)
 108     {
 109       GNUNET_NAMESTORE_cancel(nsqe);
 110       nsqe = NULL;
 111     }
 112   if (NULL != ncqe)
 113     {
 114       GNUNET_NAMECACHE_cancel(ncqe);
 115       ncqe = NULL;
 116     }
 117   cleanup();
 118   res = 1;
 119 }
 120
 121
 122 static void
 123 end(void *cls)
 124 {
 125   cleanup();
 126   res = 0;
 127 }
 128
 129
 130 static void
 131 rd_decrypt_cb(void *cls,
 132               unsigned int rd_count,
 133               const struct GNUNET_GNSRECORD_Data *rd)
 134 {
 135   struct GNUNET_GNSRECORD_Data *expected_rd = cls;
 136   char rd_cmp_data[TEST_RECORD_DATALEN];
 137
 138   if (1 != rd_count)
 139     {
 140       GNUNET_SCHEDULER_add_now(&endbadly, NULL);
 141       GNUNET_break(0);
 142       return;
 143     }
 144   if (NULL == rd)
 145     {
 146       GNUNET_SCHEDULER_add_now(&endbadly, NULL);
 147       GNUNET_break(0);
 148       return;
 149     }
 150   if (expected_rd == &records[0])
 151     {
 152       /* Expecting active record */
 153       memset(rd_cmp_data, TEST_RECORD_DATA, TEST_RECORD_DATALEN);
 154       if (TEST_RECORD_TYPE != rd[0].record_type)
 155         {
 156           GNUNET_SCHEDULER_add_now(&endbadly, NULL);
 157           GNUNET_break(0);
 158           return;
 159         }
 160       if (TEST_RECORD_DATALEN != rd[0].data_size)
 161         {
 162           GNUNET_SCHEDULER_add_now(&endbadly, NULL);
 163           GNUNET_break(0);
 164           return;
 165         }
 166       if (0 != memcmp(&rd_cmp_data, rd[0].data, TEST_RECORD_DATALEN))
 167         {
 168           GNUNET_SCHEDULER_add_now(&endbadly, NULL);
 169           GNUNET_break(0);
 170           return;
 171         }
 172       if (0 != (GNUNET_GNSRECORD_RF_SHADOW_RECORD & rd[0].flags))
 173         {
 174           GNUNET_SCHEDULER_add_now(&endbadly, NULL);
 175           GNUNET_break(0);
 176           return;
 177         }
 178       GNUNET_log(GNUNET_ERROR_TYPE_INFO,
 179                  "Block was decrypted successfully with active record\n");
 180     }
 181   if (expected_rd == &records[1])
 182     {
 183       /* Expecting shadow record  but without shadow flag*/
 184       memset(rd_cmp_data, TEST_SHADOW_RECORD_DATA, TEST_RECORD_DATALEN);
 185       if (TEST_RECORD_TYPE != rd[0].record_type)
 186         {
 187           GNUNET_SCHEDULER_add_now(&endbadly, NULL);
 188           GNUNET_break(0);
 189           return;
 190         }
 191       if (TEST_RECORD_DATALEN != rd[0].data_size)
 192         {
 193           GNUNET_SCHEDULER_add_now(&endbadly, NULL);
 194           GNUNET_break(0);
 195           return;
 196         }
 197       if (0 != memcmp(&rd_cmp_data, rd[0].data, TEST_RECORD_DATALEN))
 198         {
 199           GNUNET_SCHEDULER_add_now(&endbadly, NULL);
 200           GNUNET_break(0);
 201           return;
 202         }
 203       if (0 != (GNUNET_GNSRECORD_RF_SHADOW_RECORD & rd[0].flags))
 204         {
 205           GNUNET_SCHEDULER_add_now(&endbadly, NULL);
 206           GNUNET_break(0);
 207           return;
 208         }
 209       GNUNET_log(GNUNET_ERROR_TYPE_INFO,
 210                  "Block was decrypted successfully with former shadow record \n");
 211       GNUNET_SCHEDULER_add_now(&end, NULL);
 212     }
 213 }
 214
 215
 216 static void
 217 name_lookup_active_proc(void *cls,
 218                         const struct GNUNET_GNSRECORD_Block *block)
 219 {
 220   struct GNUNET_GNSRECORD_Data *expected_rd = cls;
 221
 222   GNUNET_assert(NULL != expected_rd);
 223
 224   ncqe = NULL;
 225   ncqe_shadow = NULL;
 226   if (endbadly_task != NULL)
 227     {
 228       GNUNET_SCHEDULER_cancel(endbadly_task);
 229       endbadly_task = NULL;
 230     }
 231
 232   if (NULL == block)
 233     {
 234       GNUNET_log(GNUNET_ERROR_TYPE_ERROR,
 235                  _("Namestore returned no block\n"));
 236       if (endbadly_task != NULL)
 237         GNUNET_SCHEDULER_cancel(endbadly_task);
 238       endbadly_task = GNUNET_SCHEDULER_add_now(&endbadly, NULL);
 239       return;
 240     }
 241
 242   GNUNET_log(GNUNET_ERROR_TYPE_DEBUG,
 243              "Namestore returned block, decrypting \n");
 244   GNUNET_assert(GNUNET_OK == GNUNET_GNSRECORD_block_decrypt(block,
 245                                                             &pubkey, TEST_NAME, &rd_decrypt_cb, expected_rd));
 246 }
 247
 248
 249 static void
 250 name_lookup_shadow(void *cls)
 251 {
 252   GNUNET_log(GNUNET_ERROR_TYPE_DEBUG,
 253              "Performing lookup for shadow record \n");
 254   delayed_lookup_task = NULL;
 255   ncqe_shadow = GNUNET_NAMECACHE_lookup_block(nch, &derived_hash,
 256                                               &name_lookup_active_proc, &records[1]);
 257 }
 258
 259
 260 static void
 261 put_cont(void *cls, int32_t success, const char *emsg)
 262 {
 263   nsqe = NULL;
 264
 265   GNUNET_log(GNUNET_ERROR_TYPE_DEBUG,
 266              "Name store added record for `%s': %s\n",
 267              TEST_NAME,
 268              (success == GNUNET_OK) ? "SUCCESS" : "FAIL");
 269
 270   /* Create derived hash */
 271   GNUNET_CRYPTO_ecdsa_key_get_public(privkey, &pubkey);
 272   GNUNET_GNSRECORD_query_from_public_key(&pubkey, TEST_NAME, &derived_hash);
 273
 274   if (0 == GNUNET_TIME_absolute_get_remaining(record_expiration).rel_value_us)
 275     {
 276       GNUNET_log(GNUNET_ERROR_TYPE_ERROR,
 277                  "Test to too long to store records, cannot run test!\n");
 278       GNUNET_SCHEDULER_add_now(&end, NULL);
 279       return;
 280     }
 281   /* Lookup active record now */
 282   GNUNET_log(GNUNET_ERROR_TYPE_INFO,
 283              "Performing lookup for active record \n");
 284   ncqe = GNUNET_NAMECACHE_lookup_block(nch, &derived_hash,
 285                                        &name_lookup_active_proc, &records[0]);
 286
 287   delayed_lookup_task = GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_multiply(EXPIRATION, 2), &name_lookup_shadow, NULL);
 288 }
 289
 290
 291 static void
 292 run(void *cls,
 293     const struct GNUNET_CONFIGURATION_Handle *cfg,
 294     struct GNUNET_TESTING_Peer *peer)
 295 {
 296   endbadly_task = GNUNET_SCHEDULER_add_delayed(TIMEOUT,
 297                                                &endbadly,
 298                                                NULL);
 299   privkey = GNUNET_CRYPTO_ecdsa_key_create();
 300   GNUNET_assert(privkey != NULL);
 301   GNUNET_CRYPTO_ecdsa_key_get_public(privkey,
 302                                      &pubkey);
 303
 304   record_expiration = GNUNET_TIME_absolute_add(GNUNET_TIME_absolute_get(),
 305                                                EXPIRATION);
 306   records[0].expiration_time = record_expiration.abs_value_us;
 307   records[0].record_type = TEST_RECORD_TYPE;
 308   records[0].data_size = TEST_RECORD_DATALEN;
 309   records[0].data = GNUNET_malloc(TEST_RECORD_DATALEN);
 310   records[0].flags = GNUNET_GNSRECORD_RF_NONE;
 311   memset((char *)records[0].data, TEST_RECORD_DATA, TEST_RECORD_DATALEN);
 312
 313   records[1].expiration_time = GNUNET_TIME_absolute_get().abs_value_us + 1000000000;
 314   records[1].record_type = TEST_RECORD_TYPE;
 315   records[1].data_size = TEST_RECORD_DATALEN;
 316   records[1].data = GNUNET_malloc(TEST_RECORD_DATALEN);
 317   records[1].flags = GNUNET_GNSRECORD_RF_SHADOW_RECORD;
 318   memset((char *)records[1].data, TEST_SHADOW_RECORD_DATA, TEST_RECORD_DATALEN);
 319
 320   nsh = GNUNET_NAMESTORE_connect(cfg);
 321   nch = GNUNET_NAMECACHE_connect(cfg);
 322   GNUNET_break(NULL != nsh);
 323   GNUNET_break(NULL != nch);
 324   nsqe = GNUNET_NAMESTORE_records_store(nsh, privkey, TEST_NAME,
 325                                         2, records, &put_cont, NULL);
 326   if (NULL == nsqe)
 327     {
 328       GNUNET_log(GNUNET_ERROR_TYPE_ERROR,
 329                  _("Namestore cannot store no block\n"));
 330     }
 331
 332   GNUNET_free((void *)records[0].data);
 333   GNUNET_free((void *)records[1].data);
 334 }
 335
 336
 337 #include "test_common.c"
 338
 339
 340 int
 341 main(int argc, char *argv[])
 342 {
 343   const char *plugin_name;
 344   char *cfg_name;
 345
 346   SETUP_CFG(plugin_name, cfg_name);
 347   res = 1;
 348   if (0 !=
 349       GNUNET_TESTING_peer_run("test-namestore-api-lookup-shadow-filter",
 350                               cfg_name,
 351                               &run,
 352                               NULL))
 353     {
 354       res = 1;
 355     }
 356   GNUNET_DISK_purge_cfg_dir(cfg_name,
 357                             "GNUNET_TEST_HOME");
 358   GNUNET_free(cfg_name);
 359   return res;
 360 }
 361
 362
 363 /* end of test_namestore_api_lookup_shadow_filter.c */