2 This file is part of GNUnet.
3 (C) 2012 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_topo.c
23 * @brief Test for the dht service: store and retrieve in various topologies.
24 * Each peer stores it own ID in the DHT and then a different peer tries to
25 * retrieve that key from it. The GET starts after a first round of PUTS has
26 * been made. Periodically, each peer stores its ID into the DHT. If after
27 * a timeout no result has been returned, the test fails.
30 #include "gnunet_testing_lib.h"
31 #include "gnunet_dht_service.h"
33 #define REMOVE_DIR GNUNET_YES
36 * DIFFERENT TESTS TO RUN
42 * How long until we give up on connecting the peers?
44 #define TIMEOUT GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 1500)
46 #define GET_TIMEOUT GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 120)
48 #define PUT_FREQUENCY GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 5)
56 * Total number of peers in the test.
58 static unsigned long long num_peers;
61 * Global configuration file
63 static struct GNUNET_CONFIGURATION_Handle *testing_cfg;
66 * Total number of currently running peers.
68 static unsigned long long peers_running;
71 * Total number of connections in the whole network.
73 static unsigned int total_connections;
76 * The currently running peer group.
78 static struct GNUNET_TESTING_PeerGroup *pg;
81 * File to report results to.
83 static struct GNUNET_DISK_FileHandle *output_file;
86 * File to log connection info, statistics to.
88 static struct GNUNET_DISK_FileHandle *data_file;
91 * Task called to disconnect peers.
93 static GNUNET_SCHEDULER_TaskIdentifier disconnect_task;
96 * Task To perform tests
98 static GNUNET_SCHEDULER_TaskIdentifier test_task;
101 * Task to do DHT_puts
103 static GNUNET_SCHEDULER_TaskIdentifier put_task;
106 * Task called to shutdown test.
108 static GNUNET_SCHEDULER_TaskIdentifier shutdown_handle;
110 static char *topology_file;
112 static struct GNUNET_DHT_Handle **hs;
114 static struct GNUNET_DHT_GetHandle *get_h;
116 static struct GNUNET_DHT_GetHandle *get_h_2;
118 static struct GNUNET_DHT_GetHandle *get_h_far;
124 static int found_far;
127 * Which topology are we to run
129 static int test_topology;
133 * Check whether peers successfully shut down.
136 shutdown_callback (void *cls, const char *emsg)
140 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Shutdown of peers failed!\n");
145 GNUNET_log (GNUNET_ERROR_TYPE_INFO, "All peers successfully shut down!\n");
147 GNUNET_CONFIGURATION_destroy (testing_cfg);
152 shutdown_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
154 GNUNET_log (GNUNET_ERROR_TYPE_INFO, "Ending test.\n");
156 if (disconnect_task != GNUNET_SCHEDULER_NO_TASK)
158 GNUNET_SCHEDULER_cancel (disconnect_task);
159 disconnect_task = GNUNET_SCHEDULER_NO_TASK;
162 if (data_file != NULL)
163 GNUNET_DISK_file_close (data_file);
164 GNUNET_TESTING_daemons_stop (pg, TIMEOUT, &shutdown_callback, NULL);
169 disconnect_peers (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
173 GNUNET_log (GNUNET_ERROR_TYPE_INFO, "disconnecting peers\n");
174 disconnect_task = GNUNET_SCHEDULER_NO_TASK;
175 GNUNET_SCHEDULER_cancel (put_task);
177 GNUNET_DHT_get_stop (get_h);
179 GNUNET_DHT_get_stop (get_h_2);
180 if (NULL != get_h_far)
181 GNUNET_DHT_get_stop (get_h_far);
182 for (i = 0; i < num_peers; i++)
184 GNUNET_DHT_disconnect (hs[i]);
186 GNUNET_SCHEDULER_cancel (shutdown_handle);
187 shutdown_handle = GNUNET_SCHEDULER_add_now (&shutdown_task, NULL);
192 dht_get_id_handler (void *cls, struct GNUNET_TIME_Absolute exp,
193 const struct GNUNET_HashCode * key,
194 const struct GNUNET_PeerIdentity *get_path,
195 unsigned int get_path_length,
196 const struct GNUNET_PeerIdentity *put_path,
197 unsigned int put_path_length, enum GNUNET_BLOCK_Type type,
198 size_t size, const void *data)
202 if (sizeof (struct GNUNET_HashCode) == size)
204 const struct GNUNET_HashCode *h = data;
206 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, " Contents: %s\n",
207 GNUNET_h2s_full (h));
214 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "PATH: (get %u, put %u)\n",
215 get_path_length, put_path_length);
216 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, " LOCAL\n");
217 for (i = get_path_length - 1; i >= 0; i--)
219 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, " %s\n",
220 GNUNET_i2s (&get_path[i]));
222 for (i = put_path_length - 1; i >= 0; i--)
224 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, " %s\n",
225 GNUNET_i2s (&put_path[i]));
231 GNUNET_log (GNUNET_ERROR_TYPE_INFO, "FOUND 1!\n");
235 GNUNET_log (GNUNET_ERROR_TYPE_INFO, "FOUND 2!\n");
239 GNUNET_log (GNUNET_ERROR_TYPE_INFO, "FOUND FAR!\n");
244 if ( (TORUS == test_topology) &&
245 ( (found_1 == 0) || (found_2 == 0) || (found_far == 0)) )
248 GNUNET_SCHEDULER_cancel (disconnect_task);
249 disconnect_task = GNUNET_SCHEDULER_add_now (&disconnect_peers, NULL);
254 do_test (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
256 struct GNUNET_TESTING_Daemon *d;
257 struct GNUNET_TESTING_Daemon *d2;
258 struct GNUNET_TESTING_Daemon *d_far;
259 struct GNUNET_TESTING_Daemon *o;
260 struct GNUNET_TESTING_Daemon *aux;
262 const char *id_origin = "FC74";
263 const char *id_near = "9P6V";
264 const char *id_near2 = "2GDS";
265 const char *id_far = "KPST";
268 d = d2 = d_far = o = NULL;
269 found_1 = found_2 = found_far = 0;
270 if (LINE == test_topology)
272 o = GNUNET_TESTING_daemon_get (pg, 0);
273 d = GNUNET_TESTING_daemon_get (pg, num_peers - 1);
275 else if (TORUS == test_topology)
277 for (i = 0; i < num_peers; i++)
279 aux = GNUNET_TESTING_daemon_get (pg, i);
280 id_aux = GNUNET_i2s (&aux->id);
281 if (strcmp (id_aux, id_origin) == 0)
283 if (strcmp (id_aux, id_far) == 0)
285 if (strcmp (id_aux, id_near) == 0)
287 if (strcmp (id_aux, id_near2) == 0)
290 if ((NULL == o) || (NULL == d) || (NULL == d2) || (NULL == d_far))
292 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
293 "Peers not found (hostkey file changed?)\n");
294 GNUNET_SCHEDULER_cancel (disconnect_task);
295 disconnect_task = GNUNET_SCHEDULER_add_now (&disconnect_peers, NULL);
303 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "test_task\nfrom %s\n",
304 GNUNET_h2s_full (&o->id.hashPubKey));
305 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, " looking for %s\n",
306 GNUNET_h2s_full (&d->id.hashPubKey));
307 get_h = GNUNET_DHT_get_start (hs[0],
308 GNUNET_BLOCK_TYPE_TEST, /* type */
309 &d->id.hashPubKey, /*key to search */
310 4U, /* replication level */
311 GNUNET_DHT_RO_RECORD_ROUTE | GNUNET_DHT_RO_DEMULTIPLEX_EVERYWHERE,
314 &dht_get_id_handler, (void *)1);
315 if (TORUS == test_topology)
317 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, " looking for %s\n",
318 GNUNET_h2s_full (&d2->id.hashPubKey));
319 get_h_2 = GNUNET_DHT_get_start (hs[0],
320 GNUNET_BLOCK_TYPE_TEST, /* type */
321 &d2->id.hashPubKey, /*key to search */
322 4U, /* replication level */
323 GNUNET_DHT_RO_RECORD_ROUTE | GNUNET_DHT_RO_DEMULTIPLEX_EVERYWHERE,
326 &dht_get_id_handler, (void *)2);
327 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, " looking for %s\n",
328 GNUNET_h2s_full (&d_far->id.hashPubKey));
329 get_h_far = GNUNET_DHT_get_start (hs[0],
330 GNUNET_BLOCK_TYPE_TEST, /* type */
331 &d_far->id.hashPubKey, /*key to search */
332 4U, /* replication level */
333 GNUNET_DHT_RO_RECORD_ROUTE | GNUNET_DHT_RO_DEMULTIPLEX_EVERYWHERE,
336 &dht_get_id_handler, (void *)3);
338 GNUNET_SCHEDULER_cancel (disconnect_task);
340 GNUNET_SCHEDULER_add_delayed (GET_TIMEOUT, &disconnect_peers, NULL);
344 * Task to put the id of each peer into the DHT.
346 * @param cls Closure (unused)
347 * @param tc Task context
351 put_id (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
353 struct GNUNET_TESTING_Daemon *d;
356 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "putting id's in DHT\n");
357 for (i = 0; i < num_peers; i++)
359 d = GNUNET_TESTING_daemon_get (pg, i);
360 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, " putting into DHT: %s\n",
361 GNUNET_h2s_full (&d->id.hashPubKey));
362 GNUNET_DHT_put (hs[i], &d->id.hashPubKey, 10U,
363 GNUNET_DHT_RO_RECORD_ROUTE |
364 GNUNET_DHT_RO_DEMULTIPLEX_EVERYWHERE,
365 GNUNET_BLOCK_TYPE_TEST, sizeof (struct GNUNET_PeerIdentity),
366 (const char *) &d->id, GNUNET_TIME_UNIT_FOREVER_ABS,
367 GNUNET_TIME_UNIT_FOREVER_REL, NULL, NULL);
370 put_task = GNUNET_SCHEDULER_add_delayed (PUT_FREQUENCY, &put_id, NULL);
371 if (GNUNET_SCHEDULER_NO_TASK == test_task)
372 test_task = GNUNET_SCHEDULER_add_now (&do_test, NULL);
377 * peergroup_ready: start test when all peers are connected
380 * @param emsg error message
384 peergroup_ready (void *cls, const char *emsg)
386 struct GNUNET_TESTING_Daemon *d;
393 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
394 "Peergroup callback called with error, aborting test!\n");
395 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
396 "Error from testing: `%s'\n",
399 GNUNET_TESTING_daemons_stop (pg, TIMEOUT, &shutdown_callback, NULL);
402 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
403 "Peer Group started successfully with %u connections\n",
405 if (data_file != NULL)
408 buf_len = GNUNET_asprintf (&buf, "CONNECTIONS_0: %u\n", total_connections);
410 GNUNET_DISK_file_write (data_file, buf, buf_len);
413 peers_running = GNUNET_TESTING_daemons_running (pg);
415 GNUNET_assert (peers_running == num_peers);
416 hs = GNUNET_malloc (num_peers * sizeof (struct GNUNET_DHT_Handle *));
417 for (i = 0; i < num_peers; i++)
419 d = GNUNET_TESTING_daemon_get (pg, i);
420 hs[i] = GNUNET_DHT_connect (d->cfg, 32);
423 test_task = GNUNET_SCHEDULER_NO_TASK;
424 put_task = GNUNET_SCHEDULER_add_now (&put_id, NULL);
426 GNUNET_SCHEDULER_add_delayed (GET_TIMEOUT, &disconnect_peers, NULL);
432 * Function that will be called whenever two daemons are connected by
433 * the testing library.
436 * @param first peer id for first daemon
437 * @param second peer id for the second daemon
438 * @param distance distance between the connected peers
439 * @param first_cfg config for the first daemon
440 * @param second_cfg config for the second daemon
441 * @param first_daemon handle for the first daemon
442 * @param second_daemon handle for the second daemon
443 * @param emsg error message (NULL on success)
446 connect_cb (void *cls, const struct GNUNET_PeerIdentity *first,
447 const struct GNUNET_PeerIdentity *second, uint32_t distance,
448 const struct GNUNET_CONFIGURATION_Handle *first_cfg,
449 const struct GNUNET_CONFIGURATION_Handle *second_cfg,
450 struct GNUNET_TESTING_Daemon *first_daemon,
451 struct GNUNET_TESTING_Daemon *second_daemon, const char *emsg)
456 GNUNET_PEER_intern (first);
457 GNUNET_PEER_intern (second);
461 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
462 "Problem with new connection (%s)\n", emsg);
468 * run: load configuration options and schedule test to run (start peergroup)
471 * @param cfgfile configuration file name (can be NULL)
472 * @param cfg configuration handle
475 run (void *cls, char *const *args, const char *cfgfile,
476 const struct GNUNET_CONFIGURATION_Handle *cfg)
479 struct GNUNET_TESTING_Host *hosts;
483 testing_cfg = GNUNET_CONFIGURATION_dup (cfg);
485 GNUNET_log_setup ("test_dht_topo",
488 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Starting daemons.\n");
489 GNUNET_CONFIGURATION_set_value_string (testing_cfg, "testing_old",
490 "use_progressbars", "YES");
492 GNUNET_CONFIGURATION_get_value_number (testing_cfg, "testing_old",
493 "num_peers", &num_peers))
495 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
496 "Option TESTING:NUM_PEERS is required!\n");
501 GNUNET_CONFIGURATION_get_value_string (testing_cfg, "testing_old",
502 "topology_output_file",
505 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
506 "Option test_dht_topo:topology_output_file is required!\n");
511 GNUNET_CONFIGURATION_get_value_string (testing_cfg, "test_dht_topo",
516 GNUNET_DISK_file_open (data_filename,
517 GNUNET_DISK_OPEN_READWRITE |
518 GNUNET_DISK_OPEN_CREATE,
519 GNUNET_DISK_PERM_USER_READ |
520 GNUNET_DISK_PERM_USER_WRITE);
521 if (data_file == NULL)
523 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Failed to open %s for output!\n",
525 GNUNET_free (data_filename);
530 GNUNET_CONFIGURATION_get_value_string (cfg, "test_dht_topo",
531 "output_file", &temp_str))
534 GNUNET_DISK_file_open (temp_str,
535 GNUNET_DISK_OPEN_READWRITE |
536 GNUNET_DISK_OPEN_CREATE,
537 GNUNET_DISK_PERM_USER_READ |
538 GNUNET_DISK_PERM_USER_WRITE);
539 if (output_file == NULL)
540 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Failed to open %s for output!\n",
543 GNUNET_free_non_null (temp_str);
545 hosts = GNUNET_TESTING_hosts_load (testing_cfg);
547 pg = GNUNET_TESTING_peergroup_start (testing_cfg, num_peers, TIMEOUT,
548 &connect_cb, &peergroup_ready, NULL,
550 GNUNET_assert (pg != NULL);
552 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_FOREVER_REL,
553 &shutdown_task, NULL);
561 main (int xargc, char *xargv[])
563 static struct GNUNET_GETOPT_CommandLineOption options[] = {
564 GNUNET_GETOPT_OPTION_END
566 static char *const argv_torus[] = { "test-dht-2dtorus",
568 "test_dht_2dtorus.conf",
571 static char *const argv_line[] = { "test-dht-line",
573 "test_dht_line.conf",
579 if (strstr (xargv[0], "test_dht_2dtorus") != NULL)
582 argc = sizeof (argv_torus) / sizeof (char *);
583 test_topology = TORUS;
585 else if (strstr (xargv[0], "test_dht_line") != NULL)
588 argc = sizeof (argv_line) / sizeof (char *);
589 test_topology = LINE;
596 GNUNET_PROGRAM_run (argc - 1, argv,
598 gettext_noop ("Test dht in different topologies."),
602 GNUNET_DISK_directory_remove ("/tmp/test_dht_topo");
606 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "ID 1 not found!\n");
608 if (TORUS == test_topology)
612 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "ID 2 not found!\n");
616 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "ID far not found!\n");
622 /* end of test_dht_topo.c */