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;
144 if (curr_get_ctx.retry_task != GNUNET_SCHEDULER_NO_TASK)
146 GNUNET_SCHEDULER_cancel (curr_get_ctx.retry_task);
147 curr_get_ctx.retry_task = GNUNET_SCHEDULER_NO_TASK;
149 if (curr_get_ctx.get_handle != NULL)
151 GNUNET_DHT_get_stop (curr_get_ctx.get_handle);
154 GNUNET_SCHEDULER_add_now (&end_badly_cont, NULL);
159 /* Forward declaration */
161 do_get (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc);
164 * Iterator called on each result obtained for a DHT
165 * operation that expects a reply
168 * @param exp when will this value expire
169 * @param key key of the result
170 * @param type type of the result
171 * @param size number of bytes in data
172 * @param data pointer to the result data
175 get_result_iterator (void *cls, struct GNUNET_TIME_Absolute exp,
176 const GNUNET_HashCode * key,
177 const struct GNUNET_PeerIdentity *get_path,
178 unsigned int get_path_length,
179 const struct GNUNET_PeerIdentity *put_path,
180 unsigned int put_path_length,
181 enum GNUNET_BLOCK_Type type, size_t size, const void *data)
183 struct PeerGetContext *get_context = cls;
186 memcmp (&get_context->peer->hashPubKey, key, sizeof (GNUNET_HashCode)))
188 fprintf (stderr, "??\n");
189 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
190 "Key returned is not the same key as was searched for!\n");
191 GNUNET_SCHEDULER_cancel (die_task);
193 GNUNET_SCHEDULER_add_now (&end_badly,
194 "key mismatch in get response!\n");
197 fprintf (stderr, "!\n");
198 if (get_context->retry_task != GNUNET_SCHEDULER_NO_TASK)
200 GNUNET_SCHEDULER_cancel (get_context->retry_task);
201 get_context->retry_task = GNUNET_SCHEDULER_NO_TASK;
204 if (get_context->peer == &peer2id)
206 get_context->peer = &peer1id;
207 get_context->dht_handle = peer2dht;
208 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
209 "Received first correct GET request response!\n");
210 GNUNET_DHT_get_stop (get_context->get_handle);
211 GNUNET_SCHEDULER_add_now (&do_get, get_context);
215 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
216 "Received second correct GET request response!\n");
217 GNUNET_SCHEDULER_cancel (die_task);
218 GNUNET_DHT_get_stop (get_context->get_handle);
219 die_task = GNUNET_SCHEDULER_add_now (&finish_testing, NULL);
225 stop_retry_get (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc);
229 get_stop_finished (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
231 struct PeerGetContext *get_context = cls;
233 if (get_context->get_attempts < MAX_GET_ATTEMPTS)
234 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
235 "Get attempt %u failed, retrying request!\n",
236 get_context->get_attempts);
239 fprintf (stderr, "?\n");
240 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
241 "Too many attempts failed, ending test!\n",
242 get_context->get_attempts);
243 GNUNET_SCHEDULER_cancel (die_task);
245 GNUNET_SCHEDULER_add_now (&end_badly,
246 "GET attempt failed, ending test!\n");
249 fprintf (stderr, ".");
250 get_context->get_attempts++;
251 get_context->retry_task =
252 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply
253 (GNUNET_TIME_UNIT_SECONDS, 10),
254 &stop_retry_get, get_context);
255 get_context->get_handle =
256 GNUNET_DHT_get_start (get_context->dht_handle,
257 GNUNET_TIME_relative_multiply
258 (GNUNET_TIME_UNIT_SECONDS, 5),
259 GNUNET_BLOCK_TYPE_DHT_HELLO,
260 &get_context->peer->hashPubKey,
261 1, GNUNET_DHT_RO_NONE, NULL,
262 0, &get_result_iterator, get_context);
267 stop_retry_get (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
269 struct PeerGetContext *get_context = cls;
271 get_context->retry_task = GNUNET_SCHEDULER_NO_TASK;
272 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
273 "Get attempt %u failed, canceling request!\n",
274 get_context->get_attempts);
275 GNUNET_DHT_get_stop (get_context->get_handle);
276 get_context->get_handle = NULL;
277 GNUNET_SCHEDULER_add_now (&get_stop_finished, get_context);
282 do_get (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
284 struct PeerGetContext *get_context = cls;
286 get_context->retry_task =
287 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply
288 (GNUNET_TIME_UNIT_SECONDS, 10),
289 &stop_retry_get, get_context);
290 get_context->get_handle =
291 GNUNET_DHT_get_start (get_context->dht_handle,
292 GNUNET_TIME_relative_multiply
293 (GNUNET_TIME_UNIT_SECONDS, 5),
294 GNUNET_BLOCK_TYPE_DHT_HELLO,
295 &get_context->peer->hashPubKey,
296 1, GNUNET_DHT_RO_FIND_PEER, NULL,
297 0, &get_result_iterator, get_context);
302 topology_callback (void *cls, const struct GNUNET_PeerIdentity *first,
303 const struct GNUNET_PeerIdentity *second, uint32_t distance,
304 const struct GNUNET_CONFIGURATION_Handle *first_cfg,
305 const struct GNUNET_CONFIGURATION_Handle *second_cfg,
306 struct GNUNET_TESTING_Daemon *first_daemon,
307 struct GNUNET_TESTING_Daemon *second_daemon,
314 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
315 "connected peer %s to peer %s, distance %u\n",
316 first_daemon->shortname, second_daemon->shortname, distance);
322 failed_connections++;
323 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
324 "Failed to connect peer %s to peer %s with error :\n%s\n",
325 first_daemon->shortname, second_daemon->shortname, emsg);
329 if (total_connections == expected_connections)
332 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
333 "Created %d total connections, which is our target number! Starting next phase of testing.\n",
336 GNUNET_SCHEDULER_cancel (die_task);
338 GNUNET_SCHEDULER_add_delayed (TIMEOUT,
339 &end_badly, "Timeout trying to GET");
341 curr_get_ctx.dht_handle = peer1dht;
342 curr_get_ctx.peer = &peer2id;
343 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply
344 (GNUNET_TIME_UNIT_SECONDS, 2), &do_get,
347 else if (total_connections + failed_connections == expected_connections)
349 GNUNET_SCHEDULER_cancel (die_task);
351 GNUNET_SCHEDULER_add_now (&end_badly,
352 "from topology_callback (too many failed connections)");
358 connect_topology (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
360 expected_connections = -1;
361 if ((pg != NULL) && (peers_left == 0))
362 expected_connections =
363 GNUNET_TESTING_connect_topology (pg, GNUNET_TESTING_TOPOLOGY_CLIQUE,
364 GNUNET_TESTING_TOPOLOGY_OPTION_ALL,
365 0.0, TIMEOUT, 12, NULL, NULL);
367 GNUNET_SCHEDULER_cancel (die_task);
368 if (expected_connections == GNUNET_SYSERR)
370 GNUNET_SCHEDULER_add_now (&end_badly,
371 "from connect topology (bad return)");
374 GNUNET_SCHEDULER_add_delayed (TIMEOUT, &end_badly,
375 "from connect topology (timeout)");
380 peers_started_callback (void *cls, const struct GNUNET_PeerIdentity *id,
381 const struct GNUNET_CONFIGURATION_Handle *cfg,
382 struct GNUNET_TESTING_Daemon *d, const char *emsg)
387 "Failed to start daemon: `%s'\n",
391 GNUNET_assert (id != NULL);
392 if (peers_left == num_peers)
394 memcpy (&peer1id, id, sizeof (struct GNUNET_PeerIdentity));
395 peer1dht = GNUNET_DHT_connect (cfg, 100);
396 if (peer1dht == NULL)
398 GNUNET_SCHEDULER_cancel (die_task);
400 GNUNET_SCHEDULER_add_now (&end_badly, "Failed to get dht handle!\n");
405 memcpy (&peer2id, id, sizeof (struct GNUNET_PeerIdentity));
406 peer2dht = GNUNET_DHT_connect (cfg, 100);
407 if (peer2dht == NULL)
409 GNUNET_SCHEDULER_cancel (die_task);
411 GNUNET_SCHEDULER_add_now (&end_badly, "Failed to get dht handle!\n");
421 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
422 "All %d daemons started, now connecting peers!\n", num_peers);
424 GNUNET_SCHEDULER_cancel (die_task);
425 /* Set up task in case topology creation doesn't finish
426 * within a reasonable amount of time */
428 GNUNET_SCHEDULER_add_delayed (TIMEOUT, &end_badly,
429 "from peers_started_callback");
431 GNUNET_SCHEDULER_add_now (&connect_topology, NULL);
438 run (void *cls, char *const *args, const char *cfgfile,
439 const struct GNUNET_CONFIGURATION_Handle *cfg)
443 GNUNET_CONFIGURATION_get_value_string (cfg, "paths", "servicehome",
451 GNUNET_CONFIGURATION_get_value_number (cfg, "testing", "num_peers",
453 num_peers = DEFAULT_NUM_PEERS;
455 peers_left = num_peers;
456 total_gets = num_peers;
458 /* Set up a task to end testing if peer start fails */
460 GNUNET_SCHEDULER_add_delayed (TIMEOUT, &end_badly,
461 "didn't start all daemons in reasonable amount of time!!!");
463 pg = GNUNET_TESTING_daemons_start (cfg, num_peers, 10, num_peers, TIMEOUT,
464 NULL, NULL, &peers_started_callback, NULL,
465 &topology_callback, NULL, NULL);
474 char *const argv[] = { "test-dht-twopeer",
476 "test_dht_twopeer_data.conf",
482 struct GNUNET_GETOPT_CommandLineOption options[] = {
483 GNUNET_GETOPT_OPTION_END
486 GNUNET_PROGRAM_run ((sizeof (argv) / sizeof (char *)) - 1, argv,
487 "test-dht-twopeer", "nohelp", options, &run, &ok);
488 if (ret != GNUNET_OK)
490 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
491 "`test-dht-twopeer': Failed with error code %d\n", ret);
497 main (int argc, char *argv[])
501 GNUNET_log_setup ("test-dht-twopeer",
510 * Need to remove base directory, subdirectories taken care
511 * of by the testing framework.
513 if (GNUNET_DISK_directory_remove (test_directory) != GNUNET_OK)
515 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
516 "Failed to remove testing directory %s\n", test_directory);
521 /* end of test_dht_twopeer.c */