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- /*
- This file is part of GNUnet.
- (C) 2009 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 dht/test_dht_twopeer.c
- * @brief base testcase for testing DHT service with
- * two running peers
- */
- #include "platform.h"
- #include "gnunet_testing_lib.h"
- #include "gnunet_core_service.h"
- #include "gnunet_dht_service.h"
- /* DEFINES */
- #define VERBOSE GNUNET_NO
- #define MAX_GET_ATTEMPTS 10
- #define TIMEOUT GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MINUTES, 5)
- #define DEFAULT_NUM_PEERS 2
- /* Structs */
- struct PeerGetContext
- {
- struct GNUNET_PeerIdentity *peer;
- struct GNUNET_DHT_Handle *dht_handle;
- struct GNUNET_DHT_GetHandle *get_handle;
- unsigned int get_attempts;
- GNUNET_SCHEDULER_TaskIdentifier retry_task;
- };
- /* Globals */
- static char *test_directory;
- static struct PeerGetContext curr_get_ctx;
- static unsigned int expected_connections;
- static unsigned long long peers_left;
- static struct GNUNET_TESTING_PeerGroup *pg;
- static unsigned long long num_peers;
- static unsigned int total_gets;
- static unsigned int gets_succeeded;
- static unsigned int total_connections;
- static unsigned int failed_connections;
- GNUNET_SCHEDULER_TaskIdentifier die_task;
- static int ok;
- static struct GNUNET_PeerIdentity peer1id;
- static struct GNUNET_PeerIdentity peer2id;
- static struct GNUNET_DHT_Handle *peer1dht;
- static struct GNUNET_DHT_Handle *peer2dht;
- /**
- * Check whether peers successfully shut down.
- */
- void
- shutdown_callback (void *cls, const char *emsg)
- {
- if (emsg != NULL)
- {
- if (ok == 0)
- ok = 2;
- }
- }
- static void
- finish_testing (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
- {
- GNUNET_assert (pg != NULL);
- GNUNET_assert (peer1dht != NULL);
- GNUNET_assert (peer2dht != NULL);
- GNUNET_DHT_disconnect (peer1dht);
- GNUNET_DHT_disconnect (peer2dht);
- GNUNET_TESTING_daemons_stop (pg, TIMEOUT, &shutdown_callback, NULL);
- ok = 0;
- }
- static void
- end_badly_cont (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
- {
- if (peer1dht != NULL)
- GNUNET_DHT_disconnect (peer1dht);
- if (peer2dht != NULL)
- GNUNET_DHT_disconnect (peer2dht);
- if (pg != NULL)
- GNUNET_TESTING_daemons_stop (pg, TIMEOUT, &shutdown_callback, NULL);
- if (curr_get_ctx.retry_task != GNUNET_SCHEDULER_NO_TASK)
- GNUNET_SCHEDULER_cancel (curr_get_ctx.retry_task);
- }
- static void
- end_badly (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
- {
- if (curr_get_ctx.retry_task != GNUNET_SCHEDULER_NO_TASK)
- GNUNET_SCHEDULER_cancel (curr_get_ctx.retry_task);
- if (curr_get_ctx.get_handle != NULL)
- {
- GNUNET_DHT_get_stop (curr_get_ctx.get_handle);
- }
- GNUNET_SCHEDULER_add_now (&end_badly_cont, NULL);
- ok = 1;
- }
- /* Forward declaration */
- static void
- do_get (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc);
- /**
- * Iterator called on each result obtained for a DHT
- * operation that expects a reply
- *
- * @param cls closure
- * @param exp when will this value expire
- * @param key key of the result
- * @param type type of the result
- * @param size number of bytes in data
- * @param data pointer to the result data
- */
- void
- get_result_iterator (void *cls, struct GNUNET_TIME_Absolute exp,
- const GNUNET_HashCode * key,
- const struct GNUNET_PeerIdentity *const *get_path,
- const struct GNUNET_PeerIdentity *const *put_path,
- enum GNUNET_BLOCK_Type type, size_t size, const void *data)
- {
- struct PeerGetContext *get_context = cls;
- if (0 !=
- memcmp (&get_context->peer->hashPubKey, key, sizeof (GNUNET_HashCode)))
- {
- GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
- "Key returned is not the same key as was searched for!\n");
- GNUNET_SCHEDULER_cancel (die_task);
- GNUNET_SCHEDULER_add_now (&end_badly, "key mismatch in get response!\n");
- return;
- }
- if (get_context->retry_task != GNUNET_SCHEDULER_NO_TASK)
- {
- GNUNET_SCHEDULER_cancel (get_context->retry_task);
- get_context->retry_task = GNUNET_SCHEDULER_NO_TASK;
- }
- if (get_context->peer == &peer2id)
- {
- get_context->peer = &peer1id;
- get_context->dht_handle = peer2dht;
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "Received first correct GET request response!\n");
- GNUNET_DHT_get_stop (get_context->get_handle);
- GNUNET_SCHEDULER_add_now (&do_get, get_context);
- }
- else
- {
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "Received second correct GET request response!\n");
- GNUNET_SCHEDULER_cancel (die_task);
- GNUNET_DHT_get_stop (get_context->get_handle);
- GNUNET_SCHEDULER_add_now (&finish_testing, NULL);
- }
- }
- static void
- stop_retry_get (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc);
- static void
- get_stop_finished (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
- {
- struct PeerGetContext *get_context = cls;
- if (get_context->get_attempts < MAX_GET_ATTEMPTS)
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "Get attempt %u failed, retrying request!\n",
- get_context->get_attempts);
- else
- {
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "Too many attempts failed, ending test!\n",
- get_context->get_attempts);
- GNUNET_SCHEDULER_cancel (die_task);
- GNUNET_SCHEDULER_add_now (&end_badly, "key mismatch in get response!\n");
- return;
- }
- get_context->get_attempts++;
- get_context->retry_task =
- GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply
- (GNUNET_TIME_UNIT_SECONDS, 10),
- &stop_retry_get, get_context);
- get_context->get_handle =
- GNUNET_DHT_get_start (get_context->dht_handle,
- GNUNET_TIME_relative_multiply
- (GNUNET_TIME_UNIT_SECONDS, 5),
- GNUNET_BLOCK_TYPE_DHT_HELLO,
- &get_context->peer->hashPubKey,
- DEFAULT_GET_REPLICATION, GNUNET_DHT_RO_NONE, NULL,
- 0, NULL, 0, &get_result_iterator, get_context);
- }
- static void
- stop_retry_get (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
- {
- struct PeerGetContext *get_context = cls;
- get_context->retry_task = GNUNET_SCHEDULER_NO_TASK;
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "Get attempt %u failed, canceling request!\n",
- get_context->get_attempts);
- GNUNET_DHT_get_stop (get_context->get_handle);
- get_context->get_handle = NULL;
- GNUNET_SCHEDULER_add_now (&get_stop_finished, get_context);
- }
- static void
- do_get (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
- {
- struct PeerGetContext *get_context = cls;
- get_context->retry_task =
- GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply
- (GNUNET_TIME_UNIT_SECONDS, 10),
- &stop_retry_get, get_context);
- get_context->get_handle =
- GNUNET_DHT_get_start (get_context->dht_handle,
- GNUNET_TIME_relative_multiply
- (GNUNET_TIME_UNIT_SECONDS, 5),
- GNUNET_BLOCK_TYPE_DHT_HELLO,
- &get_context->peer->hashPubKey,
- DEFAULT_GET_REPLICATION, GNUNET_DHT_RO_NONE, NULL,
- 0, NULL, 0, &get_result_iterator, get_context);
- }
- void
- topology_callback (void *cls, const struct GNUNET_PeerIdentity *first,
- const struct GNUNET_PeerIdentity *second, uint32_t distance,
- const struct GNUNET_CONFIGURATION_Handle *first_cfg,
- const struct GNUNET_CONFIGURATION_Handle *second_cfg,
- struct GNUNET_TESTING_Daemon *first_daemon,
- struct GNUNET_TESTING_Daemon *second_daemon,
- const char *emsg)
- {
- if (emsg == NULL)
- {
- total_connections++;
- #if VERBOSE
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "connected peer %s to peer %s, distance %u\n",
- first_daemon->shortname, second_daemon->shortname, distance);
- #endif
- }
- #if VERBOSE
- else
- {
- failed_connections++;
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "Failed to connect peer %s to peer %s with error :\n%s\n",
- first_daemon->shortname, second_daemon->shortname, emsg);
- }
- #endif
- if (total_connections == expected_connections)
- {
- #if VERBOSE
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "Created %d total connections, which is our target number! Starting next phase of testing.\n",
- total_connections);
- #endif
- GNUNET_SCHEDULER_cancel (die_task);
- die_task =
- GNUNET_SCHEDULER_add_delayed (TIMEOUT, &end_badly, "from test gets");
- curr_get_ctx.dht_handle = peer1dht;
- curr_get_ctx.peer = &peer2id;
- GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply
- (GNUNET_TIME_UNIT_SECONDS, 2), &do_get,
- &curr_get_ctx);
- }
- else if (total_connections + failed_connections == expected_connections)
- {
- GNUNET_SCHEDULER_cancel (die_task);
- die_task =
- GNUNET_SCHEDULER_add_now (&end_badly,
- "from topology_callback (too many failed connections)");
- }
- }
- static void
- connect_topology (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
- {
- expected_connections = -1;
- if ((pg != NULL) && (peers_left == 0))
- expected_connections =
- GNUNET_TESTING_connect_topology (pg, GNUNET_TESTING_TOPOLOGY_CLIQUE,
- GNUNET_TESTING_TOPOLOGY_OPTION_ALL,
- 0.0, TIMEOUT, 12, NULL, NULL);
- GNUNET_SCHEDULER_cancel (die_task);
- if (expected_connections == GNUNET_SYSERR)
- die_task =
- GNUNET_SCHEDULER_add_now (&end_badly,
- "from connect topology (bad return)");
- die_task =
- GNUNET_SCHEDULER_add_delayed (TIMEOUT, &end_badly,
- "from connect topology (timeout)");
- }
- static void
- peers_started_callback (void *cls, const struct GNUNET_PeerIdentity *id,
- const struct GNUNET_CONFIGURATION_Handle *cfg,
- struct GNUNET_TESTING_Daemon *d, const char *emsg)
- {
- if (emsg != NULL)
- {
- GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
- "Failed to start daemon with error: `%s'\n", emsg);
- return;
- }
- GNUNET_assert (id != NULL);
- if (peers_left == num_peers)
- {
- memcpy (&peer1id, id, sizeof (struct GNUNET_PeerIdentity));
- peer1dht = GNUNET_DHT_connect (cfg, 100);
- if (peer1dht == NULL)
- {
- GNUNET_SCHEDULER_cancel (die_task);
- GNUNET_SCHEDULER_add_now (&end_badly, "Failed to get dht handle!\n");
- }
- }
- else
- {
- memcpy (&peer2id, id, sizeof (struct GNUNET_PeerIdentity));
- peer2dht = GNUNET_DHT_connect (cfg, 100);
- if (peer2dht == NULL)
- {
- GNUNET_SCHEDULER_cancel (die_task);
- GNUNET_SCHEDULER_add_now (&end_badly, "Failed to get dht handle!\n");
- }
- }
- peers_left--;
- if (peers_left == 0)
- {
- #if VERBOSE
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "All %d daemons started, now connecting peers!\n", num_peers);
- #endif
- GNUNET_SCHEDULER_cancel (die_task);
- /* Set up task in case topology creation doesn't finish
- * within a reasonable amount of time */
- die_task =
- GNUNET_SCHEDULER_add_delayed (TIMEOUT, &end_badly,
- "from peers_started_callback");
- GNUNET_SCHEDULER_add_now (&connect_topology, NULL);
- ok = 0;
- }
- }
- static void
- run (void *cls, char *const *args, const char *cfgfile,
- const struct GNUNET_CONFIGURATION_Handle *cfg)
- {
- if (GNUNET_YES !=
- GNUNET_CONFIGURATION_get_value_string (cfg, "paths", "servicehome",
- &test_directory))
- {
- ok = 404;
- return;
- }
- if (GNUNET_SYSERR ==
- GNUNET_CONFIGURATION_get_value_number (cfg, "testing", "num_peers",
- &num_peers))
- num_peers = DEFAULT_NUM_PEERS;
- peers_left = num_peers;
- total_gets = num_peers;
- gets_succeeded = 0;
- /* Set up a task to end testing if peer start fails */
- die_task =
- GNUNET_SCHEDULER_add_delayed (TIMEOUT, &end_badly,
- "didn't start all daemons in reasonable amount of time!!!");
- pg = GNUNET_TESTING_daemons_start (cfg, num_peers, 10, num_peers, TIMEOUT,
- NULL, NULL, &peers_started_callback, NULL,
- &topology_callback, NULL, NULL);
- }
- static int
- check ()
- {
- int ret;
- char *const argv[] = { "test-dht-twopeer",
- "-c",
- "test_dht_twopeer_data.conf",
- #if VERBOSE
- "-L", "DEBUG",
- #endif
- NULL
- };
- struct GNUNET_GETOPT_CommandLineOption options[] = {
- GNUNET_GETOPT_OPTION_END
- };
- ret =
- GNUNET_PROGRAM_run ((sizeof (argv) / sizeof (char *)) - 1, argv,
- "test-dht-twopeer", "nohelp", options, &run, &ok);
- if (ret != GNUNET_OK)
- {
- GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
- "`test-dht-twopeer': Failed with error code %d\n", ret);
- }
- return ok;
- }
- int
- main (int argc, char *argv[])
- {
- int ret;
- GNUNET_log_setup ("test-dht-twopeer",
- #if VERBOSE
- "DEBUG",
- #else
- "WARNING",
- #endif
- NULL);
- ret = check ();
- /**
- * Need to remove base directory, subdirectories taken care
- * of by the testing framework.
- */
- if (GNUNET_DISK_directory_remove (test_directory) != GNUNET_OK)
- {
- GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
- "Failed to remove testing directory %s\n", test_directory);
- }
- return ret;
- }
- /* end of test_dht_twopeer.c */
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