minor fixes + test for shadows record filtering and usage

1 files changed, 312 insertions, 0 deletions

diff --git a/src/namestore/test_namestore_api_lookup_shadow_filter.c b/src/namestore/test_namestore_api_lookup_shadow_filter.c
new file mode 100644
index 000000000..538ecf007
--- /dev/null
+++ b/src/namestore/test_namestore_api_lookup_shadow_filter.c
@@ -0,0 +1,312 @@
+/*
+     This file is part of GNUnet.
+     (C) 2012 Christian Grothoff (and other contributing authors)
+
+     GNUnet is free software; you can redistribute it and/or modify
+     it under the terms of the GNU General Public License as published
+     by the Free Software Foundation; either version 3, or (at your
+     option) any later version.
+
+     GNUnet is distributed in the hope that it will be useful, but
+     WITHOUT ANY WARRANTY; without even the implied warranty of
+     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+     General Public License for more details.
+
+     You should have received a copy of the GNU General Public License
+     along with GNUnet; see the file COPYING.  If not, write to the
+     Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+     Boston, MA 02111-1307, USA.
+*/
+/**
+ * @file namestore/test_namestore_api_lookup_shadow_filter.c
+ * @brief testcase for namestore_api.c: store a record with short expiration
+ *      and a shadow record, perform lookup:
+ *      - when active record is valid, expect only active record
+ *      - when active record is expired, expect shadow record only
+ */
+#include "platform.h"
+#include "gnunet_namecache_service.h"
+#include "gnunet_namestore_service.h"
+#include "gnunet_testing_lib.h"
+
+#define TEST_NAME "dummy.dummy.gnunet"
+#define TEST_RECORD_TYPE 1234
+#define TEST_RECORD_DATALEN 123
+#define TEST_RECORD_DATA 'a'
+#define TEST_SHADOW_RECORD_DATA 'b'
+
+#define TIMEOUT GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 100)
+#define EXPIRATION GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 2)
+
+static struct GNUNET_NAMESTORE_Handle *nsh;
+
+static struct GNUNET_NAMECACHE_Handle *nch;
+
+static GNUNET_SCHEDULER_TaskIdentifier endbadly_task;
+
+static GNUNET_SCHEDULER_TaskIdentifier delayed_lookup_task;
+
+static struct GNUNET_CRYPTO_EcdsaPrivateKey *privkey;
+
+static struct GNUNET_CRYPTO_EcdsaPublicKey pubkey;
+
+static int res;
+
+static struct GNUNET_NAMESTORE_QueueEntry *nsqe;
+
+static struct GNUNET_NAMECACHE_QueueEntry *ncqe;
+
+static struct GNUNET_NAMECACHE_QueueEntry *ncqe_shadow;
+
+static struct GNUNET_GNSRECORD_Data records[2];
+
+static struct GNUNET_TIME_Absolute record_expiration;
+
+static struct GNUNET_HashCode derived_hash;
+
+static struct GNUNET_CRYPTO_EcdsaPublicKey pubkey;
+
+static void
+cleanup ()
+{
+  if (NULL != nsh)
+  {
+    GNUNET_NAMESTORE_disconnect (nsh);
+    nsh = NULL;
+  }
+  if (NULL != nch)
+  {
+    GNUNET_NAMECACHE_disconnect (nch);
+    nch = NULL;
+  }
+  if (NULL != privkey)
+  {
+    GNUNET_free (privkey);
+    privkey = NULL;
+  }
+  GNUNET_SCHEDULER_shutdown ();
+}
+
+
+/**
+ * Re-establish the connection to the service.
+ *
+ * @param cls handle to use to re-connect.
+ * @param tc scheduler context
+ */
+static void
+endbadly (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
+{
+  if (GNUNET_SCHEDULER_NO_TASK != delayed_lookup_task)
+  {
+    GNUNET_SCHEDULER_cancel (delayed_lookup_task);
+    delayed_lookup_task = GNUNET_SCHEDULER_NO_TASK;
+  }
+  if (NULL != nsqe)
+  {
+    GNUNET_NAMESTORE_cancel (nsqe);
+    nsqe = NULL;
+  }
+  if (NULL != ncqe)
+  {
+    GNUNET_NAMECACHE_cancel (ncqe);
+    ncqe = NULL;
+  }
+  cleanup ();
+  res = 1;
+}
+
+
+static void
+end (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
+{
+  cleanup ();
+  res = 0;
+}
+
+
+static void
+rd_decrypt_cb (void *cls,
+               unsigned int rd_count,
+               const struct GNUNET_GNSRECORD_Data *rd)
+{
+  struct GNUNET_GNSRECORD_Data *expected_rd = cls;
+  char rd_cmp_data[TEST_RECORD_DATALEN];
+
+  if (1 != rd_count)
+  {
+    GNUNET_SCHEDULER_add_now (&endbadly, NULL);
+    GNUNET_break (0);
+    return;
+  }
+  if (NULL == rd)
+  {
+    GNUNET_SCHEDULER_add_now (&endbadly, NULL);
+    GNUNET_break (0);
+    return;
+  }
+  if (expected_rd == &records[0])
+  {
+    /* Expecting active record */
+    memset (rd_cmp_data, TEST_RECORD_DATA, TEST_RECORD_DATALEN);
+    GNUNET_assert (TEST_RECORD_TYPE == rd[0].record_type);
+    GNUNET_assert (TEST_RECORD_DATALEN == rd[0].data_size);
+    GNUNET_assert (0 == memcmp (&rd_cmp_data, rd[0].data, TEST_RECORD_DATALEN));
+    GNUNET_assert (0 == (GNUNET_GNSRECORD_RF_SHADOW_RECORD & rd[0].flags));
+    GNUNET_log (GNUNET_ERROR_TYPE_INFO,
+                "Block was decrypted successfully with active record\n");
+  }
+  if (expected_rd == &records[1])
+  {
+    /* Expecting shadow record  but without shadow flag*/
+    memset (rd_cmp_data, TEST_SHADOW_RECORD_DATA, TEST_RECORD_DATALEN);
+    GNUNET_assert (TEST_RECORD_TYPE == rd[0].record_type);
+    GNUNET_assert (TEST_RECORD_DATALEN == rd[0].data_size);
+    GNUNET_assert (0 == memcmp (&rd_cmp_data, rd[0].data, TEST_RECORD_DATALEN));
+    GNUNET_assert (0 == (GNUNET_GNSRECORD_RF_SHADOW_RECORD & rd[0].flags));
+    GNUNET_log (GNUNET_ERROR_TYPE_INFO,
+                "Block was decrypted successfully with former shadow record \n");
+    GNUNET_SCHEDULER_add_now (&end, NULL );
+  }
+}
+
+
+static void
+name_lookup_active_proc (void *cls,
+                  const struct GNUNET_GNSRECORD_Block *block)
+{
+  struct GNUNET_GNSRECORD_Data *expected_rd = cls;
+  GNUNET_assert (NULL != expected_rd);
+
+  ncqe = NULL;
+  ncqe_shadow = NULL;
+  if (endbadly_task != GNUNET_SCHEDULER_NO_TASK)
+  {
+    GNUNET_SCHEDULER_cancel (endbadly_task);
+    endbadly_task = GNUNET_SCHEDULER_NO_TASK;
+  }
+
+  if (NULL == block)
+  {
+    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+              _("Namestore returned no block\n"));
+    if (endbadly_task != GNUNET_SCHEDULER_NO_TASK)
+      GNUNET_SCHEDULER_cancel (endbadly_task);
+    endbadly_task =  GNUNET_SCHEDULER_add_now (&endbadly, NULL);
+    return;
+  }
+
+  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+              "Namestore returned block, decrypting \n");
+  GNUNET_assert (GNUNET_OK == GNUNET_GNSRECORD_block_decrypt(block,
+                &pubkey, TEST_NAME, &rd_decrypt_cb, expected_rd));
+}
+
+static void
+name_lookup_shadow (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
+{
+  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+              "Performing lookup for shadow record \n");
+  delayed_lookup_task = GNUNET_SCHEDULER_NO_TASK;
+  ncqe_shadow = GNUNET_NAMECACHE_lookup_block (nch, &derived_hash,
+      &name_lookup_active_proc, &records[1]);
+}
+
+
+static void
+put_cont (void *cls, int32_t success, const char *emsg)
+{
+  nsqe = NULL;
+
+  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+              "Name store added record for `%s': %s\n",
+              TEST_NAME,
+              (success == GNUNET_OK) ? "SUCCESS" : "FAIL");
+
+  /* Create derived hash */
+  GNUNET_CRYPTO_ecdsa_key_get_public (privkey, &pubkey);
+  GNUNET_GNSRECORD_query_from_public_key (&pubkey, TEST_NAME, &derived_hash);
+
+  if (0 == GNUNET_TIME_absolute_get_remaining(record_expiration).rel_value_us )
+  {
+    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                "Test to too long to store records, cannot run test!\n");
+    GNUNET_SCHEDULER_add_now (&end, NULL );
+    return;
+  }
+  /* Lookup active record now */
+  GNUNET_log (GNUNET_ERROR_TYPE_INFO,
+              "Performing lookup for active record \n");
+  ncqe = GNUNET_NAMECACHE_lookup_block (nch, &derived_hash,
+                                        &name_lookup_active_proc, &records[0]);
+
+  delayed_lookup_task = GNUNET_SCHEDULER_add_delayed (EXPIRATION, &name_lookup_shadow, NULL);
+}
+
+
+static void
+run (void *cls,
+     const struct GNUNET_CONFIGURATION_Handle *cfg,
+     struct GNUNET_TESTING_Peer *peer)
+{
+  char *hostkey_file;
+
+  endbadly_task = GNUNET_SCHEDULER_add_delayed (TIMEOUT,
+                                                &endbadly, NULL);
+  GNUNET_asprintf (&hostkey_file,
+                   "zonefiles%s%s",
+                   DIR_SEPARATOR_STR,
+                   "N0UJMP015AFUNR2BTNM3FKPBLG38913BL8IDMCO2H0A1LIB81960.zkey");
+  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Using zonekey file `%s' \n", hostkey_file);
+  privkey = GNUNET_CRYPTO_ecdsa_key_create_from_file (hostkey_file);
+  GNUNET_free (hostkey_file);
+  GNUNET_assert (privkey != NULL);
+  GNUNET_CRYPTO_ecdsa_key_get_public (privkey, &pubkey);
+
+  record_expiration = GNUNET_TIME_absolute_add(GNUNET_TIME_absolute_get(), EXPIRATION);
+  records[0].expiration_time = record_expiration.abs_value_us;
+  records[0].record_type = TEST_RECORD_TYPE;
+  records[0].data_size = TEST_RECORD_DATALEN;
+  records[0].data = GNUNET_malloc (TEST_RECORD_DATALEN);
+  records[0].flags = GNUNET_GNSRECORD_RF_NONE;
+  memset ((char *) records[0].data, TEST_RECORD_DATA, TEST_RECORD_DATALEN);
+
+  records[1].expiration_time = GNUNET_TIME_absolute_get().abs_value_us + 1000000000;
+  records[1].record_type = TEST_RECORD_TYPE;
+  records[1].data_size = TEST_RECORD_DATALEN;
+  records[1].data = GNUNET_malloc (TEST_RECORD_DATALEN);
+  records[1].flags = GNUNET_GNSRECORD_RF_SHADOW_RECORD;
+  memset ((char *) records[1].data, TEST_SHADOW_RECORD_DATA, TEST_RECORD_DATALEN);
+
+  nsh = GNUNET_NAMESTORE_connect (cfg);
+  nch = GNUNET_NAMECACHE_connect (cfg);
+  GNUNET_break (NULL != nsh);
+  GNUNET_break (NULL != nch);
+  nsqe = GNUNET_NAMESTORE_records_store (nsh, privkey, TEST_NAME,
+                                      2, records, &put_cont, NULL);
+  if (NULL == nsqe)
+  {
+    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+              _("Namestore cannot store no block\n"));
+  }
+
+  GNUNET_free ((void *) records[0].data);
+  GNUNET_free ((void *) records[1].data);
+}
+
+
+int
+main (int argc, char *argv[])
+{
+  res = 1;
+  if (0 !=
+      GNUNET_TESTING_peer_run ("test-namestore-api",
+                               "test_namestore_api.conf",
+                               &run,
+                               NULL))
+    return 1;
+  return res;
+}
+
+
+/* end of test_namestore_api_lookup_shadow_filter.c */