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.
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);
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 */
144 static void do_get (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc);
147 * Iterator called on each result obtained for a DHT
148 * operation that expects a reply
151 * @param exp when will this value expire
152 * @param key key of the result
153 * @param type type of the result
154 * @param size number of bytes in data
155 * @param data pointer to the result data
158 get_result_iterator (void *cls, struct GNUNET_TIME_Absolute exp,
159 const GNUNET_HashCode * key,
160 const struct GNUNET_PeerIdentity *const *get_path,
161 const struct GNUNET_PeerIdentity *const *put_path,
162 enum GNUNET_BLOCK_Type type, size_t size, const void *data)
164 struct PeerGetContext *get_context = cls;
167 memcmp (&get_context->peer->hashPubKey, key, sizeof (GNUNET_HashCode)))
169 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
170 "Key returned is not the same key as was searched for!\n");
171 GNUNET_SCHEDULER_cancel (die_task);
172 GNUNET_SCHEDULER_add_now (&end_badly, "key mismatch in get response!\n");
176 if (get_context->retry_task != GNUNET_SCHEDULER_NO_TASK)
178 GNUNET_SCHEDULER_cancel (get_context->retry_task);
179 get_context->retry_task = GNUNET_SCHEDULER_NO_TASK;
182 if (get_context->peer == &peer2id)
184 get_context->peer = &peer1id;
185 get_context->dht_handle = peer2dht;
186 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
187 "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,
194 "Received second correct GET request response!\n");
195 GNUNET_SCHEDULER_cancel (die_task);
196 GNUNET_DHT_get_stop (get_context->get_handle);
197 GNUNET_SCHEDULER_add_now (&finish_testing, NULL);
202 static void stop_retry_get (void *cls,
203 const struct GNUNET_SCHEDULER_TaskContext *tc);
206 get_stop_finished (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
208 struct PeerGetContext *get_context = cls;
210 if (get_context->get_attempts < MAX_GET_ATTEMPTS)
211 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
212 "Get attempt %u failed, retrying request!\n",
213 get_context->get_attempts);
216 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
217 "Too many attempts failed, ending test!\n",
218 get_context->get_attempts);
219 GNUNET_SCHEDULER_cancel (die_task);
220 GNUNET_SCHEDULER_add_now (&end_badly, "key mismatch in get response!\n");
223 get_context->get_attempts++;
224 get_context->retry_task =
225 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply
226 (GNUNET_TIME_UNIT_SECONDS, 10),
227 &stop_retry_get, get_context);
228 get_context->get_handle =
229 GNUNET_DHT_get_start (get_context->dht_handle,
230 GNUNET_TIME_relative_multiply
231 (GNUNET_TIME_UNIT_SECONDS, 5),
232 GNUNET_BLOCK_TYPE_DHT_HELLO,
233 &get_context->peer->hashPubKey,
234 DEFAULT_GET_REPLICATION, GNUNET_DHT_RO_NONE, NULL,
235 0, NULL, 0, &get_result_iterator, get_context);
239 stop_retry_get (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
241 struct PeerGetContext *get_context = cls;
243 get_context->retry_task = GNUNET_SCHEDULER_NO_TASK;
244 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
245 "Get attempt %u failed, canceling request!\n",
246 get_context->get_attempts);
247 GNUNET_DHT_get_stop (get_context->get_handle);
248 get_context->get_handle = NULL;
249 GNUNET_SCHEDULER_add_now (&get_stop_finished, get_context);
253 do_get (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
255 struct PeerGetContext *get_context = cls;
257 get_context->retry_task =
258 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply
259 (GNUNET_TIME_UNIT_SECONDS, 10),
260 &stop_retry_get, get_context);
262 get_context->get_handle =
263 GNUNET_DHT_get_start (get_context->dht_handle,
264 GNUNET_TIME_relative_multiply
265 (GNUNET_TIME_UNIT_SECONDS, 5),
266 GNUNET_BLOCK_TYPE_DHT_HELLO,
267 &get_context->peer->hashPubKey,
268 DEFAULT_GET_REPLICATION, GNUNET_DHT_RO_NONE, NULL,
269 0, NULL, 0, &get_result_iterator, get_context);
274 topology_callback (void *cls, const struct GNUNET_PeerIdentity *first,
275 const struct GNUNET_PeerIdentity *second, uint32_t distance,
276 const struct GNUNET_CONFIGURATION_Handle *first_cfg,
277 const struct GNUNET_CONFIGURATION_Handle *second_cfg,
278 struct GNUNET_TESTING_Daemon *first_daemon,
279 struct GNUNET_TESTING_Daemon *second_daemon,
286 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
287 "connected peer %s to peer %s, distance %u\n",
288 first_daemon->shortname, second_daemon->shortname, distance);
294 failed_connections++;
295 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
296 "Failed to connect peer %s to peer %s with error :\n%s\n",
297 first_daemon->shortname, second_daemon->shortname, emsg);
301 if (total_connections == expected_connections)
304 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
305 "Created %d total connections, which is our target number! Starting next phase of testing.\n",
308 GNUNET_SCHEDULER_cancel (die_task);
310 GNUNET_SCHEDULER_add_delayed (TIMEOUT, &end_badly, "from test gets");
312 curr_get_ctx.dht_handle = peer1dht;
313 curr_get_ctx.peer = &peer2id;
314 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply
315 (GNUNET_TIME_UNIT_SECONDS, 2), &do_get,
318 else if (total_connections + failed_connections == expected_connections)
320 GNUNET_SCHEDULER_cancel (die_task);
322 GNUNET_SCHEDULER_add_now (&end_badly,
323 "from topology_callback (too many failed connections)");
328 connect_topology (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
330 expected_connections = -1;
331 if ((pg != NULL) && (peers_left == 0))
332 expected_connections =
333 GNUNET_TESTING_connect_topology (pg, GNUNET_TESTING_TOPOLOGY_CLIQUE,
334 GNUNET_TESTING_TOPOLOGY_OPTION_ALL,
335 0.0, TIMEOUT, 12, NULL, NULL);
337 GNUNET_SCHEDULER_cancel (die_task);
338 if (expected_connections == GNUNET_SYSERR)
340 GNUNET_SCHEDULER_add_now (&end_badly,
341 "from connect topology (bad return)");
345 GNUNET_SCHEDULER_add_delayed (TIMEOUT, &end_badly,
346 "from connect topology (timeout)");
350 peers_started_callback (void *cls, const struct GNUNET_PeerIdentity *id,
351 const struct GNUNET_CONFIGURATION_Handle *cfg,
352 struct GNUNET_TESTING_Daemon *d, const char *emsg)
356 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
357 "Failed to start daemon with error: `%s'\n", emsg);
360 GNUNET_assert (id != NULL);
361 if (peers_left == num_peers)
363 memcpy (&peer1id, id, sizeof (struct GNUNET_PeerIdentity));
364 peer1dht = GNUNET_DHT_connect (cfg, 100);
365 if (peer1dht == NULL)
367 GNUNET_SCHEDULER_cancel (die_task);
368 GNUNET_SCHEDULER_add_now (&end_badly, "Failed to get dht handle!\n");
373 memcpy (&peer2id, id, sizeof (struct GNUNET_PeerIdentity));
374 peer2dht = GNUNET_DHT_connect (cfg, 100);
375 if (peer2dht == NULL)
377 GNUNET_SCHEDULER_cancel (die_task);
378 GNUNET_SCHEDULER_add_now (&end_badly, "Failed to get dht handle!\n");
388 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
389 "All %d daemons started, now connecting peers!\n", num_peers);
391 GNUNET_SCHEDULER_cancel (die_task);
392 /* Set up task in case topology creation doesn't finish
393 * within a reasonable amount of time */
395 GNUNET_SCHEDULER_add_delayed (TIMEOUT, &end_badly,
396 "from peers_started_callback");
398 GNUNET_SCHEDULER_add_now (&connect_topology, NULL);
404 run (void *cls, char *const *args, const char *cfgfile,
405 const struct GNUNET_CONFIGURATION_Handle *cfg)
409 GNUNET_CONFIGURATION_get_value_string (cfg, "paths", "servicehome",
417 GNUNET_CONFIGURATION_get_value_number (cfg, "testing", "num_peers",
419 num_peers = DEFAULT_NUM_PEERS;
421 peers_left = num_peers;
422 total_gets = num_peers;
424 /* Set up a task to end testing if peer start fails */
426 GNUNET_SCHEDULER_add_delayed (TIMEOUT, &end_badly,
427 "didn't start all daemons in reasonable amount of time!!!");
429 pg = GNUNET_TESTING_daemons_start (cfg, num_peers, 10, num_peers, TIMEOUT,
430 NULL, NULL, &peers_started_callback, NULL,
431 &topology_callback, NULL, NULL);
440 char *const argv[] = { "test-dht-twopeer",
442 "test_dht_twopeer_data.conf",
448 struct GNUNET_GETOPT_CommandLineOption options[] = {
449 GNUNET_GETOPT_OPTION_END
452 GNUNET_PROGRAM_run ((sizeof (argv) / sizeof (char *)) - 1, argv,
453 "test-dht-twopeer", "nohelp", options, &run, &ok);
454 if (ret != GNUNET_OK)
456 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
457 "`test-dht-twopeer': Failed with error code %d\n", ret);
463 main (int argc, char *argv[])
467 GNUNET_log_setup ("test-dht-twopeer",
476 * Need to remove base directory, subdirectories taken care
477 * of by the testing framework.
479 if (GNUNET_DISK_directory_remove (test_directory) != GNUNET_OK)
481 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
482 "Failed to remove testing directory %s\n", test_directory);
487 /* end of test_dht_twopeer.c */