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_EXTRA_LOGGING
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 static 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.
91 shutdown_callback (void *cls, const char *emsg)
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);
114 end_badly_cont (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
116 if (peer1dht != NULL)
117 GNUNET_DHT_disconnect (peer1dht);
119 if (peer2dht != NULL)
120 GNUNET_DHT_disconnect (peer2dht);
124 GNUNET_TESTING_daemons_stop (pg, TIMEOUT, &shutdown_callback, NULL);
128 if (curr_get_ctx.retry_task != GNUNET_SCHEDULER_NO_TASK)
130 GNUNET_SCHEDULER_cancel (curr_get_ctx.retry_task);
131 curr_get_ctx.retry_task = GNUNET_SCHEDULER_NO_TASK;
137 end_badly (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
139 const char *emsg = cls;
141 fprintf (stderr, "Error: %s\n", emsg);
142 if (curr_get_ctx.retry_task != GNUNET_SCHEDULER_NO_TASK)
144 GNUNET_SCHEDULER_cancel (curr_get_ctx.retry_task);
145 curr_get_ctx.retry_task = GNUNET_SCHEDULER_NO_TASK;
147 if (curr_get_ctx.get_handle != NULL)
149 GNUNET_DHT_get_stop (curr_get_ctx.get_handle);
152 GNUNET_SCHEDULER_add_now (&end_badly_cont, NULL);
157 /* Forward declaration */
159 do_get (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc);
162 * Iterator called on each result obtained for a DHT
163 * operation that expects a reply
166 * @param exp when will this value expire
167 * @param key key of the result
168 * @param type type of the result
169 * @param size number of bytes in data
170 * @param data pointer to the result data
173 get_result_iterator (void *cls, struct GNUNET_TIME_Absolute exp,
174 const GNUNET_HashCode * key,
175 const struct GNUNET_PeerIdentity *get_path,
176 unsigned int get_path_length,
177 const struct GNUNET_PeerIdentity *put_path,
178 unsigned int put_path_length, enum GNUNET_BLOCK_Type type,
179 size_t size, const void *data)
181 struct PeerGetContext *get_context = cls;
184 memcmp (&get_context->peer->hashPubKey, key, sizeof (GNUNET_HashCode)))
186 fprintf (stderr, "??\n");
187 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
188 "Key returned is not the same key as was searched for!\n");
189 GNUNET_SCHEDULER_cancel (die_task);
191 GNUNET_SCHEDULER_add_now (&end_badly,
192 "key mismatch in get response!\n");
195 fprintf (stderr, "!\n");
196 if (get_context->retry_task != GNUNET_SCHEDULER_NO_TASK)
198 GNUNET_SCHEDULER_cancel (get_context->retry_task);
199 get_context->retry_task = GNUNET_SCHEDULER_NO_TASK;
202 if (get_context->peer == &peer2id)
204 get_context->peer = &peer1id;
205 get_context->dht_handle = peer2dht;
206 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
207 "Received first correct GET request response!\n");
208 GNUNET_DHT_get_stop (get_context->get_handle);
209 GNUNET_SCHEDULER_add_now (&do_get, get_context);
213 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
214 "Received second correct GET request response!\n");
215 GNUNET_SCHEDULER_cancel (die_task);
216 GNUNET_DHT_get_stop (get_context->get_handle);
217 die_task = GNUNET_SCHEDULER_add_now (&finish_testing, NULL);
223 stop_retry_get (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc);
227 get_stop_finished (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
229 struct PeerGetContext *get_context = cls;
231 if (get_context->get_attempts < MAX_GET_ATTEMPTS)
232 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
233 "Get attempt %u failed, retrying request!\n",
234 get_context->get_attempts);
237 fprintf (stderr, "?\n");
238 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
239 "Too many attempts failed, ending test!\n",
240 get_context->get_attempts);
241 GNUNET_SCHEDULER_cancel (die_task);
243 GNUNET_SCHEDULER_add_now (&end_badly,
244 "GET attempt failed, ending test!\n");
247 fprintf (stderr, ".");
248 get_context->get_attempts++;
249 get_context->retry_task =
250 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply
251 (GNUNET_TIME_UNIT_SECONDS, 10),
252 &stop_retry_get, get_context);
253 get_context->get_handle =
254 GNUNET_DHT_get_start (get_context->dht_handle,
255 GNUNET_TIME_relative_multiply
256 (GNUNET_TIME_UNIT_SECONDS, 5),
257 GNUNET_BLOCK_TYPE_DHT_HELLO,
258 &get_context->peer->hashPubKey, 1,
259 GNUNET_DHT_RO_NONE, NULL, 0, &get_result_iterator,
265 stop_retry_get (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
267 struct PeerGetContext *get_context = cls;
269 get_context->retry_task = GNUNET_SCHEDULER_NO_TASK;
270 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
271 "Get attempt %u failed, canceling request!\n",
272 get_context->get_attempts);
273 GNUNET_DHT_get_stop (get_context->get_handle);
274 get_context->get_handle = NULL;
275 GNUNET_SCHEDULER_add_now (&get_stop_finished, get_context);
280 do_get (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
282 struct PeerGetContext *get_context = cls;
284 get_context->retry_task =
285 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply
286 (GNUNET_TIME_UNIT_SECONDS, 10),
287 &stop_retry_get, get_context);
288 get_context->get_handle =
289 GNUNET_DHT_get_start (get_context->dht_handle,
290 GNUNET_TIME_relative_multiply
291 (GNUNET_TIME_UNIT_SECONDS, 5),
292 GNUNET_BLOCK_TYPE_DHT_HELLO,
293 &get_context->peer->hashPubKey, 1,
294 GNUNET_DHT_RO_FIND_PEER, NULL, 0,
295 &get_result_iterator, get_context);
300 topology_callback (void *cls, const struct GNUNET_PeerIdentity *first,
301 const struct GNUNET_PeerIdentity *second, uint32_t distance,
302 const struct GNUNET_CONFIGURATION_Handle *first_cfg,
303 const struct GNUNET_CONFIGURATION_Handle *second_cfg,
304 struct GNUNET_TESTING_Daemon *first_daemon,
305 struct GNUNET_TESTING_Daemon *second_daemon,
312 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
313 "connected peer %s to peer %s, distance %u\n",
314 first_daemon->shortname, second_daemon->shortname, distance);
320 failed_connections++;
321 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
322 "Failed to connect peer %s to peer %s with error :\n%s\n",
323 first_daemon->shortname, second_daemon->shortname, emsg);
327 if (total_connections == expected_connections)
330 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
331 "Created %d total connections, which is our target number! Starting next phase of testing.\n",
334 GNUNET_SCHEDULER_cancel (die_task);
336 GNUNET_SCHEDULER_add_delayed (TIMEOUT, &end_badly,
337 "Timeout trying to GET");
339 curr_get_ctx.dht_handle = peer1dht;
340 curr_get_ctx.peer = &peer2id;
341 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply
342 (GNUNET_TIME_UNIT_SECONDS, 2), &do_get,
345 else if (total_connections + failed_connections == expected_connections)
347 GNUNET_SCHEDULER_cancel (die_task);
349 GNUNET_SCHEDULER_add_now (&end_badly,
350 "from topology_callback (too many failed connections)");
356 connect_topology (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
358 expected_connections = -1;
359 if ((pg != NULL) && (peers_left == 0))
360 expected_connections =
361 GNUNET_TESTING_connect_topology (pg, GNUNET_TESTING_TOPOLOGY_CLIQUE,
362 GNUNET_TESTING_TOPOLOGY_OPTION_ALL,
363 0.0, TIMEOUT, 12, NULL, NULL);
365 GNUNET_SCHEDULER_cancel (die_task);
366 if (expected_connections == GNUNET_SYSERR)
368 GNUNET_SCHEDULER_add_now (&end_badly,
369 "from connect topology (bad return)");
372 GNUNET_SCHEDULER_add_delayed (TIMEOUT, &end_badly,
373 "from connect topology (timeout)");
378 peers_started_callback (void *cls, const struct GNUNET_PeerIdentity *id,
379 const struct GNUNET_CONFIGURATION_Handle *cfg,
380 struct GNUNET_TESTING_Daemon *d, const char *emsg)
384 fprintf (stderr, "Failed to start daemon: `%s'\n", emsg);
387 GNUNET_assert (id != NULL);
388 if (peers_left == num_peers)
390 memcpy (&peer1id, id, sizeof (struct GNUNET_PeerIdentity));
391 peer1dht = GNUNET_DHT_connect (cfg, 100);
392 if (peer1dht == NULL)
394 GNUNET_SCHEDULER_cancel (die_task);
396 GNUNET_SCHEDULER_add_now (&end_badly, "Failed to get dht handle!\n");
401 memcpy (&peer2id, id, sizeof (struct GNUNET_PeerIdentity));
402 peer2dht = GNUNET_DHT_connect (cfg, 100);
403 if (peer2dht == NULL)
405 GNUNET_SCHEDULER_cancel (die_task);
407 GNUNET_SCHEDULER_add_now (&end_badly, "Failed to get dht handle!\n");
417 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
418 "All %d daemons started, now connecting peers!\n", num_peers);
420 GNUNET_SCHEDULER_cancel (die_task);
421 /* Set up task in case topology creation doesn't finish
422 * within a reasonable amount of time */
424 GNUNET_SCHEDULER_add_delayed (TIMEOUT, &end_badly,
425 "from peers_started_callback");
427 GNUNET_SCHEDULER_add_now (&connect_topology, NULL);
434 run (void *cls, char *const *args, const char *cfgfile,
435 const struct GNUNET_CONFIGURATION_Handle *cfg)
439 GNUNET_CONFIGURATION_get_value_string (cfg, "paths", "servicehome",
447 GNUNET_CONFIGURATION_get_value_number (cfg, "testing", "num_peers",
449 num_peers = DEFAULT_NUM_PEERS;
451 peers_left = num_peers;
452 total_gets = num_peers;
454 /* Set up a task to end testing if peer start fails */
456 GNUNET_SCHEDULER_add_delayed (TIMEOUT, &end_badly,
457 "didn't start all daemons in reasonable amount of time!!!");
459 pg = GNUNET_TESTING_daemons_start (cfg, num_peers, 10, num_peers, TIMEOUT,
460 NULL, NULL, &peers_started_callback, NULL,
461 &topology_callback, NULL, NULL);
470 char *const argv[] = { "test-dht-twopeer",
472 "test_dht_twopeer_data.conf",
478 struct GNUNET_GETOPT_CommandLineOption options[] = {
479 GNUNET_GETOPT_OPTION_END
482 GNUNET_PROGRAM_run ((sizeof (argv) / sizeof (char *)) - 1, argv,
483 "test-dht-twopeer", "nohelp", options, &run, &ok);
484 if (ret != GNUNET_OK)
486 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
487 "`test-dht-twopeer': Failed with error code %d\n", ret);
493 main (int argc, char *argv[])
497 GNUNET_log_setup ("test-dht-twopeer",
506 * Need to remove base directory, subdirectories taken care
507 * of by the testing framework.
509 if (GNUNET_DISK_directory_remove (test_directory) != GNUNET_OK)
511 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
512 "Failed to remove testing directory %s\n", test_directory);
517 /* end of test_dht_twopeer.c */