2 This file is part of GNUnet.
3 (C) 2009 Christian Grothoff (and other contributing authors)
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.
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.
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.
21 * @file dht/test_dht_twopeer.c
22 * @brief base testcase for testing DHT service with
26 #include "gnunet_testing_lib.h"
27 #include "gnunet_core_service.h"
28 #include "gnunet_dht_service.h"
31 #define VERBOSE GNUNET_NO
33 #define MAX_GET_ATTEMPTS 10
35 #define TIMEOUT GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MINUTES, 5)
37 #define DEFAULT_NUM_PEERS 2
43 struct GNUNET_PeerIdentity *peer;
45 struct GNUNET_DHT_Handle *dht_handle;
47 struct GNUNET_DHT_GetHandle *get_handle;
49 unsigned int get_attempts;
51 GNUNET_SCHEDULER_TaskIdentifier retry_task;
55 static char *test_directory;
57 static struct PeerGetContext curr_get_ctx;
59 static unsigned int expected_connections;
61 static unsigned long long peers_left;
63 static struct GNUNET_TESTING_PeerGroup *pg;
65 static unsigned long long num_peers;
67 static unsigned int total_gets;
69 static unsigned int gets_succeeded;
71 static unsigned int total_connections;
73 static unsigned int failed_connections;
75 GNUNET_SCHEDULER_TaskIdentifier die_task;
79 static struct GNUNET_PeerIdentity peer1id;
81 static struct GNUNET_PeerIdentity peer2id;
83 static struct GNUNET_DHT_Handle *peer1dht;
85 static struct GNUNET_DHT_Handle *peer2dht;
88 * Check whether peers successfully shut down.
90 void shutdown_callback (void *cls,
101 finish_testing (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
103 GNUNET_assert (pg != NULL);
104 GNUNET_assert (peer1dht != NULL);
105 GNUNET_assert (peer2dht != NULL);
106 GNUNET_DHT_disconnect(peer1dht);
107 GNUNET_DHT_disconnect(peer2dht);
108 GNUNET_TESTING_daemons_stop (pg, TIMEOUT, &shutdown_callback, NULL);
113 end_badly_cont (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
115 if (peer1dht != NULL)
116 GNUNET_DHT_disconnect(peer1dht);
118 if (peer2dht != NULL)
119 GNUNET_DHT_disconnect(peer2dht);
122 GNUNET_TESTING_daemons_stop (pg, TIMEOUT, &shutdown_callback, NULL);
124 if (curr_get_ctx.retry_task != GNUNET_SCHEDULER_NO_TASK)
125 GNUNET_SCHEDULER_cancel(curr_get_ctx.retry_task);
129 end_badly (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
131 if (curr_get_ctx.retry_task != GNUNET_SCHEDULER_NO_TASK)
132 GNUNET_SCHEDULER_cancel(curr_get_ctx.retry_task);
134 if (curr_get_ctx.get_handle != NULL)
136 GNUNET_DHT_get_stop(curr_get_ctx.get_handle);
139 GNUNET_SCHEDULER_add_now (&end_badly_cont, NULL);
143 /* Forward declaration */
145 do_get (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc);
148 * Iterator called on each result obtained for a DHT
149 * operation that expects a reply
152 * @param exp when will this value expire
153 * @param key key of the result
154 * @param type type of the result
155 * @param size number of bytes in data
156 * @param data pointer to the result data
158 void get_result_iterator (void *cls,
159 struct GNUNET_TIME_Absolute exp,
160 const GNUNET_HashCode * key,
161 const struct GNUNET_PeerIdentity * const *get_path,
162 const struct GNUNET_PeerIdentity * const *put_path,
163 enum GNUNET_BLOCK_Type type,
167 struct PeerGetContext *get_context = cls;
169 if (0 != memcmp(&get_context->peer->hashPubKey, key, sizeof (GNUNET_HashCode)))
171 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Key returned is not the same key as was searched for!\n");
172 GNUNET_SCHEDULER_cancel(die_task);
173 GNUNET_SCHEDULER_add_now(&end_badly, "key mismatch in get response!\n");
177 if (get_context->retry_task != GNUNET_SCHEDULER_NO_TASK)
179 GNUNET_SCHEDULER_cancel(get_context->retry_task);
180 get_context->retry_task = GNUNET_SCHEDULER_NO_TASK;
183 if (get_context->peer == &peer2id)
185 get_context->peer = &peer1id;
186 get_context->dht_handle = peer2dht;
187 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Received first correct GET request response!\n");
188 GNUNET_DHT_get_stop(get_context->get_handle);
189 GNUNET_SCHEDULER_add_now (&do_get, get_context);
193 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Received second correct GET request response!\n");
194 GNUNET_SCHEDULER_cancel(die_task);
195 GNUNET_DHT_get_stop(get_context->get_handle);
196 GNUNET_SCHEDULER_add_now (&finish_testing, NULL);
202 stop_retry_get (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc);
205 get_stop_finished (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
207 struct PeerGetContext *get_context = cls;
209 if (get_context->get_attempts < MAX_GET_ATTEMPTS)
210 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Get attempt %u failed, retrying request!\n", get_context->get_attempts);
213 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Too many attempts failed, ending test!\n", get_context->get_attempts);
214 GNUNET_SCHEDULER_cancel(die_task);
215 GNUNET_SCHEDULER_add_now(&end_badly, "key mismatch in get response!\n");
218 get_context->get_attempts++;
219 get_context->retry_task = GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 10),
220 &stop_retry_get, get_context);
221 get_context->get_handle = GNUNET_DHT_get_start(get_context->dht_handle,
222 GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 5),
223 0 /* fixme: use real type */, &get_context->peer->hashPubKey,
227 &get_result_iterator, get_context);
231 stop_retry_get (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
233 struct PeerGetContext *get_context = cls;
234 get_context->retry_task = GNUNET_SCHEDULER_NO_TASK;
235 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Get attempt %u failed, canceling request!\n", get_context->get_attempts);
236 GNUNET_DHT_get_stop(get_context->get_handle);
237 get_context->get_handle = NULL;
238 GNUNET_SCHEDULER_add_now(&get_stop_finished, get_context);
242 do_get (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
244 struct PeerGetContext *get_context = cls;
246 get_context->retry_task = GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 10),
247 &stop_retry_get, get_context);
249 get_context->get_handle = GNUNET_DHT_get_start(get_context->dht_handle,
250 GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 5),
251 GNUNET_BLOCK_TYPE_DHT_HELLO,
252 &get_context->peer->hashPubKey,
256 &get_result_iterator, get_context);
261 topology_callback (void *cls,
262 const struct GNUNET_PeerIdentity *first,
263 const struct GNUNET_PeerIdentity *second,
265 const struct GNUNET_CONFIGURATION_Handle *first_cfg,
266 const struct GNUNET_CONFIGURATION_Handle *second_cfg,
267 struct GNUNET_TESTING_Daemon *first_daemon,
268 struct GNUNET_TESTING_Daemon *second_daemon,
275 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "connected peer %s to peer %s, distance %u\n",
276 first_daemon->shortname,
277 second_daemon->shortname,
284 failed_connections++;
285 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Failed to connect peer %s to peer %s with error :\n%s\n",
286 first_daemon->shortname,
287 second_daemon->shortname, emsg);
291 if (total_connections == expected_connections)
294 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
295 "Created %d total connections, which is our target number! Starting next phase of testing.\n",
298 GNUNET_SCHEDULER_cancel (die_task);
299 die_task = GNUNET_SCHEDULER_add_delayed (TIMEOUT,
300 &end_badly, "from test gets");
302 curr_get_ctx.dht_handle = peer1dht;
303 curr_get_ctx.peer = &peer2id;
304 //GNUNET_SCHEDULER_add_now (&do_get, &curr_get_ctx);
305 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 2), &do_get, &curr_get_ctx);
307 else if (total_connections + failed_connections == expected_connections)
309 GNUNET_SCHEDULER_cancel (die_task);
310 die_task = GNUNET_SCHEDULER_add_now (&end_badly, "from topology_callback (too many failed connections)");
315 connect_topology (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
317 expected_connections = -1;
318 if ((pg != NULL) && (peers_left == 0))
319 expected_connections = GNUNET_TESTING_connect_topology (pg, GNUNET_TESTING_TOPOLOGY_CLIQUE, GNUNET_TESTING_TOPOLOGY_OPTION_ALL, 0.0, NULL, NULL);
321 GNUNET_SCHEDULER_cancel (die_task);
322 if (expected_connections == GNUNET_SYSERR)
323 die_task = GNUNET_SCHEDULER_add_now (&end_badly, "from connect topology (bad return)");
326 die_task = GNUNET_SCHEDULER_add_delayed (TIMEOUT,
327 &end_badly, "from connect topology (timeout)");
331 peers_started_callback (void *cls,
332 const struct GNUNET_PeerIdentity *id,
333 const struct GNUNET_CONFIGURATION_Handle *cfg,
334 struct GNUNET_TESTING_Daemon *d, const char *emsg)
338 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Failed to start daemon with error: `%s'\n",
342 GNUNET_assert (id != NULL);
343 if (peers_left == num_peers)
345 memcpy(&peer1id, id, sizeof(struct GNUNET_PeerIdentity));
346 peer1dht = GNUNET_DHT_connect(cfg, 100);
347 if (peer1dht == NULL)
349 GNUNET_SCHEDULER_cancel (die_task);
350 GNUNET_SCHEDULER_add_now(&end_badly, "Failed to get dht handle!\n");
355 memcpy(&peer2id, id, sizeof(struct GNUNET_PeerIdentity));
356 peer2dht = GNUNET_DHT_connect(cfg, 100);
357 if (peer2dht == NULL)
359 GNUNET_SCHEDULER_cancel (die_task);
360 GNUNET_SCHEDULER_add_now(&end_badly, "Failed to get dht handle!\n");
370 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
371 "All %d daemons started, now connecting peers!\n",
374 GNUNET_SCHEDULER_cancel (die_task);
375 /* Set up task in case topology creation doesn't finish
376 * within a reasonable amount of time */
377 die_task = GNUNET_SCHEDULER_add_delayed (TIMEOUT,
378 &end_badly, "from peers_started_callback");
380 GNUNET_SCHEDULER_add_now(&connect_topology, NULL);
388 const char *cfgfile, const struct GNUNET_CONFIGURATION_Handle *cfg)
391 if (GNUNET_YES != GNUNET_CONFIGURATION_get_value_string(cfg, "paths", "servicehome", &test_directory))
398 GNUNET_CONFIGURATION_get_value_number (cfg, "testing", "num_peers",
400 num_peers = DEFAULT_NUM_PEERS;
402 peers_left = num_peers;
403 total_gets = num_peers;
405 /* Set up a task to end testing if peer start fails */
406 die_task = GNUNET_SCHEDULER_add_delayed (TIMEOUT,
407 &end_badly, "didn't start all daemons in reasonable amount of time!!!");
409 pg = GNUNET_TESTING_daemons_start (cfg,
410 num_peers, TIMEOUT, NULL, NULL, &peers_started_callback, NULL,
411 &topology_callback, NULL, NULL);
419 char *const argv[] = {"test-dht-twopeer",
421 "test_dht_twopeer_data.conf",
427 struct GNUNET_GETOPT_CommandLineOption options[] = {
428 GNUNET_GETOPT_OPTION_END
430 ret = GNUNET_PROGRAM_run ((sizeof (argv) / sizeof (char *)) - 1,
431 argv, "test-dht-twopeer", "nohelp",
433 if (ret != GNUNET_OK)
435 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "`test-dht-twopeer': Failed with error code %d\n", ret);
441 main (int argc, char *argv[])
445 GNUNET_log_setup ("test-dht-twopeer",
454 * Need to remove base directory, subdirectories taken care
455 * of by the testing framework.
457 if (GNUNET_DISK_directory_remove (test_directory) != GNUNET_OK)
459 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Failed to remove testing directory %s\n", test_directory);
464 /* end of test_dht_twopeer.c */