2 This file is part of GNUnet.
3 (C) 2009 Christian Grothoff (and other contributing authors)
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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.
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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.
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16 along with GNUnet; see the file COPYING. If not, write to the
17 Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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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 MAX_GET_ATTEMPTS 10
33 #define TIMEOUT GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MINUTES, 5)
35 #define DEFAULT_NUM_PEERS 2
41 struct GNUNET_PeerIdentity *peer;
43 struct GNUNET_DHT_Handle *dht_handle;
45 struct GNUNET_DHT_GetHandle *get_handle;
47 unsigned int get_attempts;
49 GNUNET_SCHEDULER_TaskIdentifier retry_task;
53 static char *test_directory;
55 static struct PeerGetContext curr_get_ctx;
57 static unsigned int expected_connections;
59 static unsigned long long peers_left;
61 static struct GNUNET_TESTING_PeerGroup *pg;
63 static unsigned long long num_peers;
65 static unsigned int total_gets;
67 static unsigned int gets_succeeded;
69 static unsigned int total_connections;
71 static unsigned int failed_connections;
73 static GNUNET_SCHEDULER_TaskIdentifier die_task;
77 static struct GNUNET_PeerIdentity peer1id;
79 static struct GNUNET_PeerIdentity peer2id;
81 static struct GNUNET_DHT_Handle *peer1dht;
83 static struct GNUNET_DHT_Handle *peer2dht;
86 * Check whether peers successfully shut down.
89 shutdown_callback (void *cls, const char *emsg)
99 finish_testing (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
101 GNUNET_assert (pg != NULL);
102 GNUNET_assert (peer1dht != NULL);
103 GNUNET_assert (peer2dht != NULL);
104 GNUNET_DHT_disconnect (peer1dht);
105 GNUNET_DHT_disconnect (peer2dht);
106 GNUNET_TESTING_daemons_stop (pg, TIMEOUT, &shutdown_callback, NULL);
112 end_badly_cont (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
114 if (peer1dht != NULL)
115 GNUNET_DHT_disconnect (peer1dht);
117 if (peer2dht != NULL)
118 GNUNET_DHT_disconnect (peer2dht);
122 GNUNET_TESTING_daemons_stop (pg, TIMEOUT, &shutdown_callback, NULL);
126 if (curr_get_ctx.retry_task != GNUNET_SCHEDULER_NO_TASK)
128 GNUNET_SCHEDULER_cancel (curr_get_ctx.retry_task);
129 curr_get_ctx.retry_task = GNUNET_SCHEDULER_NO_TASK;
135 end_badly (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
137 const char *emsg = cls;
139 FPRINTF (stderr, "Error: %s\n", emsg);
140 if (curr_get_ctx.retry_task != GNUNET_SCHEDULER_NO_TASK)
142 GNUNET_SCHEDULER_cancel (curr_get_ctx.retry_task);
143 curr_get_ctx.retry_task = GNUNET_SCHEDULER_NO_TASK;
145 if (curr_get_ctx.get_handle != NULL)
147 GNUNET_DHT_get_stop (curr_get_ctx.get_handle);
150 GNUNET_SCHEDULER_add_now (&end_badly_cont, NULL);
155 /* Forward declaration */
157 do_get (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc);
160 * Iterator called on each result obtained for a DHT
161 * operation that expects a reply
164 * @param exp when will this value expire
165 * @param key key of the result
166 * @param type type of the result
167 * @param size number of bytes in data
168 * @param data pointer to the result data
171 get_result_iterator (void *cls, struct GNUNET_TIME_Absolute exp,
172 const struct GNUNET_HashCode * key,
173 const struct GNUNET_PeerIdentity *get_path,
174 unsigned int get_path_length,
175 const struct GNUNET_PeerIdentity *put_path,
176 unsigned int put_path_length, enum GNUNET_BLOCK_Type type,
177 size_t size, const void *data)
179 struct PeerGetContext *get_context = cls;
182 memcmp (&get_context->peer->hashPubKey, key, sizeof (struct GNUNET_HashCode)))
184 FPRINTF (stderr, "%s", "??\n");
185 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
186 "Key returned is not the same key as was searched for!\n");
187 GNUNET_SCHEDULER_cancel (die_task);
189 GNUNET_SCHEDULER_add_now (&end_badly,
190 "key mismatch in get response!\n");
193 if (get_context->retry_task != GNUNET_SCHEDULER_NO_TASK)
195 GNUNET_SCHEDULER_cancel (get_context->retry_task);
196 get_context->retry_task = GNUNET_SCHEDULER_NO_TASK;
199 if (get_context->peer == &peer2id)
201 get_context->peer = &peer1id;
202 get_context->dht_handle = peer2dht;
203 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
204 "Received first correct GET request response!\n");
205 GNUNET_DHT_get_stop (get_context->get_handle);
206 GNUNET_SCHEDULER_add_now (&do_get, get_context);
210 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
211 "Received second correct GET request response!\n");
212 GNUNET_SCHEDULER_cancel (die_task);
213 GNUNET_DHT_get_stop (get_context->get_handle);
214 die_task = GNUNET_SCHEDULER_add_now (&finish_testing, NULL);
220 stop_retry_get (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc);
224 get_stop_finished (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
226 struct PeerGetContext *get_context = cls;
228 if (get_context->get_attempts >= MAX_GET_ATTEMPTS)
230 FPRINTF (stderr, "%s", "?\n");
231 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
232 "Too many attempts failed, ending test!\n",
233 get_context->get_attempts);
234 GNUNET_SCHEDULER_cancel (die_task);
236 GNUNET_SCHEDULER_add_now (&end_badly,
237 "GET attempt failed, ending test!\n");
240 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
241 "Get attempt %u failed, retrying request!\n",
242 get_context->get_attempts);
243 FPRINTF (stderr, "%s", ".");
244 get_context->get_attempts++;
245 get_context->retry_task =
246 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply
247 (GNUNET_TIME_UNIT_SECONDS, 60),
248 &stop_retry_get, get_context);
249 get_context->get_handle =
250 GNUNET_DHT_get_start (get_context->dht_handle,
251 GNUNET_BLOCK_TYPE_DHT_HELLO,
252 &get_context->peer->hashPubKey, 1,
253 GNUNET_DHT_RO_NONE, NULL, 0, &get_result_iterator,
259 stop_retry_get (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
261 struct PeerGetContext *get_context = cls;
263 get_context->retry_task = GNUNET_SCHEDULER_NO_TASK;
264 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
265 "Get attempt %u failed, canceling request!\n",
266 get_context->get_attempts);
267 GNUNET_DHT_get_stop (get_context->get_handle);
268 get_context->get_handle = NULL;
269 GNUNET_SCHEDULER_add_now (&get_stop_finished, get_context);
274 do_get (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
276 struct PeerGetContext *get_context = cls;
278 get_context->retry_task =
279 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply
280 (GNUNET_TIME_UNIT_SECONDS, 10),
281 &stop_retry_get, get_context);
282 get_context->get_handle =
283 GNUNET_DHT_get_start (get_context->dht_handle,
284 GNUNET_BLOCK_TYPE_DHT_HELLO,
285 &get_context->peer->hashPubKey, 1,
286 GNUNET_DHT_RO_FIND_PEER, NULL, 0,
287 &get_result_iterator, get_context);
292 topology_callback (void *cls, const struct GNUNET_PeerIdentity *first,
293 const struct GNUNET_PeerIdentity *second, uint32_t distance,
294 const struct GNUNET_CONFIGURATION_Handle *first_cfg,
295 const struct GNUNET_CONFIGURATION_Handle *second_cfg,
296 struct GNUNET_TESTING_Daemon *first_daemon,
297 struct GNUNET_TESTING_Daemon *second_daemon,
303 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
304 "connected peer %s to peer %s, distance %u\n",
305 first_daemon->shortname, second_daemon->shortname, distance);
309 failed_connections++;
310 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
311 "Failed to connect peer %s to peer %s with error :\n%s\n",
312 first_daemon->shortname, second_daemon->shortname, emsg);
315 if (total_connections == expected_connections)
317 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
318 "Created %d total connections, which is our target number! Starting next phase of testing.\n",
320 GNUNET_SCHEDULER_cancel (die_task);
322 GNUNET_SCHEDULER_add_delayed (TIMEOUT, &end_badly,
323 "Timeout trying to GET");
325 curr_get_ctx.dht_handle = peer1dht;
326 curr_get_ctx.peer = &peer2id;
327 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply
328 (GNUNET_TIME_UNIT_SECONDS, 2), &do_get,
331 else if (total_connections + failed_connections == expected_connections)
333 GNUNET_SCHEDULER_cancel (die_task);
335 GNUNET_SCHEDULER_add_now (&end_badly,
336 "from topology_callback (too many failed connections)");
342 connect_topology (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
344 expected_connections = -1;
345 if ((pg != NULL) && (peers_left == 0))
346 expected_connections =
347 GNUNET_TESTING_connect_topology (pg, GNUNET_TESTING_TOPOLOGY_CLIQUE,
348 GNUNET_TESTING_TOPOLOGY_OPTION_ALL,
349 0.0, TIMEOUT, 12, NULL, NULL);
351 GNUNET_SCHEDULER_cancel (die_task);
352 if (expected_connections == GNUNET_SYSERR)
354 GNUNET_SCHEDULER_add_now (&end_badly,
355 "from connect topology (bad return)");
358 GNUNET_SCHEDULER_add_delayed (TIMEOUT, &end_badly,
359 "from connect topology (timeout)");
364 peers_started_callback (void *cls, const struct GNUNET_PeerIdentity *id,
365 const struct GNUNET_CONFIGURATION_Handle *cfg,
366 struct GNUNET_TESTING_Daemon *d, const char *emsg)
370 FPRINTF (stderr, "Failed to start daemon: `%s'\n", emsg);
373 GNUNET_assert (id != NULL);
374 if (peers_left == num_peers)
376 memcpy (&peer1id, id, sizeof (struct GNUNET_PeerIdentity));
377 peer1dht = GNUNET_DHT_connect (cfg, 100);
378 if (peer1dht == NULL)
380 GNUNET_SCHEDULER_cancel (die_task);
382 GNUNET_SCHEDULER_add_now (&end_badly, "Failed to get dht handle!\n");
387 memcpy (&peer2id, id, sizeof (struct GNUNET_PeerIdentity));
388 peer2dht = GNUNET_DHT_connect (cfg, 100);
389 if (peer2dht == NULL)
391 GNUNET_SCHEDULER_cancel (die_task);
393 GNUNET_SCHEDULER_add_now (&end_badly, "Failed to get dht handle!\n");
402 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
403 "All %d daemons started, now connecting peers!\n", num_peers);
404 GNUNET_SCHEDULER_cancel (die_task);
405 /* Set up task in case topology creation doesn't finish
406 * within a reasonable amount of time */
408 GNUNET_SCHEDULER_add_delayed (TIMEOUT, &end_badly,
409 "from peers_started_callback");
411 GNUNET_SCHEDULER_add_now (&connect_topology, NULL);
418 run (void *cls, char *const *args, const char *cfgfile,
419 const struct GNUNET_CONFIGURATION_Handle *cfg)
423 GNUNET_CONFIGURATION_get_value_string (cfg, "paths", "servicehome",
431 GNUNET_CONFIGURATION_get_value_number (cfg, "testing_old", "num_peers",
433 num_peers = DEFAULT_NUM_PEERS;
435 peers_left = num_peers;
436 total_gets = num_peers;
438 /* Set up a task to end testing if peer start fails */
440 GNUNET_SCHEDULER_add_delayed (TIMEOUT, &end_badly,
441 "didn't start all daemons in reasonable amount of time!!!");
443 pg = GNUNET_TESTING_daemons_start (cfg, num_peers, 10, num_peers, TIMEOUT,
444 NULL, NULL, &peers_started_callback, NULL,
445 &topology_callback, NULL, NULL);
454 char *const argv[] = { "test-dht-twopeer",
456 "test_dht_twopeer_data.conf",
459 struct GNUNET_GETOPT_CommandLineOption options[] = {
460 GNUNET_GETOPT_OPTION_END
463 GNUNET_PROGRAM_run ((sizeof (argv) / sizeof (char *)) - 1, argv,
464 "test-dht-twopeer", "nohelp", options, &run, &ok);
465 if (ret != GNUNET_OK)
467 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
468 "`test-dht-twopeer': Failed with error code %d\n", ret);
474 main (int argc, char *argv[])
478 GNUNET_log_setup ("test-dht-twopeer",
483 * Need to remove base directory, subdirectories taken care
484 * of by the testing framework.
486 if (GNUNET_DISK_directory_remove (test_directory) != GNUNET_OK)
488 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
489 "Failed to remove testing directory %s\n", test_directory);
494 /* end of test_dht_twopeer.c */