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22 * @file sensor/gnunet-sensor-profiler.c
23 * @brief Profiler for the sensor service
24 * @author Omar Tarabai
27 #include "gnunet_util_lib.h"
28 #include "gnunet_testbed_service.h"
29 #include "gnunet_peerstore_service.h"
30 #include "gnunet_sensor_service.h"
31 #include "gnunet_sensor_util_lib.h"
34 * Time to wait for the peer to startup completely
36 #define PEER_STARTUP_TIME GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 1)
39 * Information about a single peer
47 struct GNUNET_PeerIdentity peer_id;
52 struct GNUNET_TESTBED_Peer *testbed_peer;
58 * Name of the configuration file used
60 static const char *cfg_filename = "gnunet-sensor-profiler.conf";
63 * Directory to read sensor definitions from
65 static const char *sensor_src_dir = "sensors";
68 * Directory to write new sensor definitions to
70 static const char *sensor_dst_dir = "/tmp/gnunet-sensor-profiler";
73 * GNUnet configuration
75 struct GNUNET_CONFIGURATION_Handle *cfg;
78 * Return value of the program
83 * Number of peers to run (Option -p)
85 static unsigned int num_peers = 0;
88 * Set sensors running interval to this value (Option -i)
90 static unsigned int sensors_interval = 0;
93 * Path to topology file (Option -t)
95 static char *topology_file;
98 * Array of peer info for all peers
100 static struct PeerInfo *all_peers_info;
103 * Number of peers that we already collected and start their info
105 static int peers_known = 0;
108 * TESTBED operation connecting us to peerstore service on collection point
110 static struct GNUNET_TESTBED_Operation *peerstore_op;
113 * Handle to peerstore service on collection point
115 static struct GNUNET_PEERSTORE_Handle *peerstore;
118 * Dashboard service on collection point started?
120 static int dashboard_service_started = GNUNET_NO;
123 * Number of peers started the sensor service successfully
125 static int sensor_services_started = 0;
128 * Array of sensor names to be used for watching peerstore records
130 static char **sensor_names;
133 * Size of 'sensor_names' array
135 static unsigned int sensor_names_size = 0;
139 * Copy directory recursively
141 * @param src Path to source directory
142 * @param dst Destination directory, will be created if it does not exist
143 * @return #GNUNET_OK on success, #GNUNET_SYSERR on error
146 copy_dir (const char *src, const char *dst);
150 * Do clean up and shutdown scheduler
153 do_shutdown (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
157 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Shutting down.\n");
160 GNUNET_CONFIGURATION_destroy (cfg);
163 if (NULL != sensor_names)
165 for (i = 0; i < sensor_names_size; i++)
166 GNUNET_free (sensor_names[i]);
167 GNUNET_array_grow (sensor_names, sensor_names_size, 0);
169 if (NULL != peerstore_op)
171 GNUNET_TESTBED_operation_done (peerstore_op);
174 if (NULL != all_peers_info)
176 GNUNET_free (all_peers_info);
177 all_peers_info = NULL;
179 GNUNET_SCHEDULER_shutdown ();
184 * Function called with each file/folder inside a directory that is being copied.
186 * @param cls closure, destination directory
187 * @param filename complete filename (absolute path)
188 * @return #GNUNET_OK to continue to iterate.
189 * #GNUNET_SYSERR to abort iteration with error
192 copy_dir_scanner (void *cls, const char *filename)
198 GNUNET_asprintf (&dst, "%s%s%s", dst_dir, DIR_SEPARATOR_STR,
199 GNUNET_STRINGS_get_short_name (filename));
200 if (GNUNET_YES == GNUNET_DISK_directory_test (filename, GNUNET_YES))
201 copy_result = copy_dir (filename, dst);
204 if (GNUNET_YES == GNUNET_DISK_file_test (dst))
205 GNUNET_DISK_directory_remove (dst);
206 copy_result = GNUNET_DISK_file_copy (filename, dst);
214 * Copy directory recursively
216 * @param src Path to source directory
217 * @param dst Destination directory, will be created if it does not exist
218 * @return #GNUNET_OK on success, #GNUNET_SYSERR on error
221 copy_dir (const char *src, const char *dst)
223 if (GNUNET_YES != GNUNET_DISK_directory_test (src, GNUNET_YES))
224 return GNUNET_SYSERR;
225 if (GNUNET_OK != GNUNET_DISK_directory_create (dst))
226 return GNUNET_SYSERR;
228 GNUNET_DISK_directory_scan (src, ©_dir_scanner, (char *) dst))
229 return GNUNET_SYSERR;
235 * Function called with each file/folder inside source sensor directory.
237 * @param cls closure (unused)
238 * @param filename complete filename (absolute path)
239 * @return #GNUNET_OK to continue to iterate.
242 sensor_dir_scanner (void *cls, const char *filename)
244 const char *file_basename;
246 struct GNUNET_CONFIGURATION_Handle *sensor_cfg;
249 file_basename = GNUNET_STRINGS_get_short_name (filename);
250 GNUNET_asprintf (&dst_path, "%s%s%s", sensor_dst_dir, DIR_SEPARATOR_STR,
252 if (GNUNET_YES == GNUNET_DISK_directory_test (filename, GNUNET_NO))
254 GNUNET_assert (GNUNET_OK == copy_dir (filename, dst_path));
258 sensor_name = GNUNET_strdup (file_basename);
259 GNUNET_array_append (sensor_names, sensor_names_size, sensor_name);
260 sensor_cfg = GNUNET_CONFIGURATION_create ();
261 GNUNET_assert (GNUNET_OK ==
262 GNUNET_CONFIGURATION_parse (sensor_cfg, filename));
263 GNUNET_CONFIGURATION_set_value_string (sensor_cfg, file_basename,
265 GNUNET_i2s_full (&all_peers_info
267 if (sensors_interval > 0)
269 GNUNET_CONFIGURATION_set_value_number (sensor_cfg, file_basename,
271 (unsigned long long int)
274 GNUNET_CONFIGURATION_write (sensor_cfg, dst_path);
275 GNUNET_CONFIGURATION_destroy (sensor_cfg);
277 GNUNET_free (dst_path);
283 * Load sensor definitions and rewrite them to tmp location.
284 * Add collection point peer id and change running interval if needed.
289 GNUNET_assert (GNUNET_YES ==
290 GNUNET_DISK_directory_test (sensor_src_dir, GNUNET_YES));
291 GNUNET_assert (GNUNET_OK == GNUNET_DISK_directory_create (sensor_dst_dir));
292 GNUNET_DISK_directory_scan (sensor_src_dir, &sensor_dir_scanner, NULL);
297 * Callback to be called when dashboard service is started
299 * @param cls the callback closure from functions generating an operation
300 * @param op the operation that has been finished
301 * @param emsg error message in case the operation has failed; will be NULL if
302 * operation has executed successfully.
305 dashboard_started (void *cls, struct GNUNET_TESTBED_Operation *op,
310 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "ERROR: %s.\n", emsg);
313 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Dashboard service started.\n");
314 GNUNET_TESTBED_operation_done (op);
315 dashboard_service_started = GNUNET_YES;
320 * Function called by PEERSTORE for each matching record.
323 * @param record peerstore record information
324 * @param emsg error message, or NULL if no errors
325 * @return #GNUNET_YES to continue iterating, #GNUNET_NO to stop
328 peerstore_watch_cb (void *cls, struct GNUNET_PEERSTORE_Record *record,
331 struct PeerInfo *peer = cls;
332 struct GNUNET_SENSOR_DashboardAnomalyEntry *anomaly;
336 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "ERROR: %s.\n", emsg);
339 GNUNET_assert (record->value_size ==
340 sizeof (struct GNUNET_SENSOR_DashboardAnomalyEntry));
341 anomaly = record->value;
343 GNUNET_CRYPTO_cmp_peer_identity (&peer->peer_id,
345 printf ("Anomaly report:\n" " Peer: `%s'\n" " Sensor: `%s'\n"
346 " Anomalous: `%d'\n" " Anomalous neighbors: %f.\n\n",
347 GNUNET_i2s (&peer->peer_id), record->key, anomaly->anomalous,
348 anomaly->anomalous_neighbors);
354 * Callback to be called when peerstore service connect operation is completed
356 * @param cls the callback closure from functions generating an operation
357 * @param op the operation that has been finished
358 * @param ca_result the service handle returned from GNUNET_TESTBED_ConnectAdapter()
359 * @param emsg error message in case the operation has failed; will be NULL if
360 * operation has executed successfully.
363 peerstore_connect_cb (void *cls, struct GNUNET_TESTBED_Operation *op,
364 void *ca_result, const char *emsg)
368 struct PeerInfo *peer;
372 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "ERROR: %s.\n", emsg);
375 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Connected to peerstore service.\n");
376 /* Watch for anomaly reports from other peers */
377 for (i = 0; i < num_peers; i++)
379 peer = &all_peers_info[i];
380 for (j = 0; j < sensor_names_size; j++)
382 GNUNET_PEERSTORE_watch (peerstore, "sensordashboard-anomalies",
383 &peer->peer_id, sensor_names[j],
384 &peerstore_watch_cb, peer);
391 * Adapter function called to establish a connection to peerstore service.
394 * @param cfg configuration of the peer to connect to; will be available until
395 * GNUNET_TESTBED_operation_done() is called on the operation returned
396 * from GNUNET_TESTBED_service_connect()
397 * @return service handle to return in 'op_result', NULL on error
400 peerstore_connect_adapter (void *cls,
401 const struct GNUNET_CONFIGURATION_Handle *cfg)
403 peerstore = GNUNET_PEERSTORE_connect (cfg);
404 GNUNET_assert (NULL != peerstore);
410 * Adapter function called to destroy a connection to peerstore service.
413 * @param op_result service handle returned from the connect adapter
416 peerstore_disconnect_adapter (void *cls, void *op_result)
418 GNUNET_PEERSTORE_disconnect (peerstore, GNUNET_NO);
425 * This function is called after a delay which ensures that all peers are
426 * properly initialized
429 peers_ready (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
431 unsigned long long int training_points;
432 struct GNUNET_TIME_Relative training_period;
434 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "All peers are ready.\n");
435 GNUNET_assert (GNUNET_OK ==
436 GNUNET_CONFIGURATION_get_value_number (cfg,
437 "sensor-model-gaussian",
441 GNUNET_TIME_relative_multiply (GNUNET_TIME_relative_multiply
442 (GNUNET_TIME_UNIT_SECONDS,
444 0) ? 60 : sensors_interval),
446 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
447 "Sleeping for a training period of %s.\n",
448 GNUNET_STRINGS_relative_time_to_string (training_period,
455 * Callback to be called when sensor service is started
457 * @param cls the callback closure from functions generating an operation
458 * @param op the operation that has been finished
459 * @param emsg error message in case the operation has failed; will be NULL if
460 * operation has executed successfully.
463 sensor_service_started (void *cls, struct GNUNET_TESTBED_Operation *op,
466 struct PeerInfo *peer = cls;
470 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "ERROR: %s.\n", emsg);
473 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Sensor service started on peer `%s'.\n",
474 GNUNET_i2s (&peer->peer_id));
475 GNUNET_TESTBED_operation_done (op);
476 sensor_services_started++;
477 if (sensor_services_started == num_peers)
479 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply
480 (PEER_STARTUP_TIME, num_peers), &peers_ready,
487 * Callback to be called when the requested peer information is available
489 * @param cb_cls the closure from GNUNET_TETSBED_peer_get_information()
490 * @param op the operation this callback corresponds to
491 * @param pinfo the result; will be NULL if the operation has failed
492 * @param emsg error message if the operation has failed; will be NULL if the
493 * operation is successfull
496 peer_info_cb (void *cb_cls, struct GNUNET_TESTBED_Operation *op,
497 const struct GNUNET_TESTBED_PeerInformation *pinfo,
500 struct GNUNET_TESTBED_Peer *testbed_peer = cb_cls;
501 struct PeerInfo *peer = &all_peers_info[peers_known];
505 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "ERROR: %s.\n", emsg);
508 peer->testbed_peer = testbed_peer;
509 GNUNET_CRYPTO_get_peer_identity (pinfo->result.cfg, &peer->peer_id);
511 if (1 == peers_known) /* First peer is collection point */
513 /* Rewrite sensors */
515 /* Start dashboard */
516 GNUNET_TESTBED_peer_manage_service (NULL, testbed_peer, "sensordashboard",
517 &dashboard_started, NULL, 1);
519 /* Start sensor service on every peer */
520 GNUNET_TESTBED_peer_manage_service (NULL, testbed_peer, "sensor",
521 &sensor_service_started, peer, 1);
522 if (num_peers == peers_known) /* Last peer */
524 /* Connect to peerstore on first peer (collection point) */
526 GNUNET_TESTBED_service_connect (NULL, all_peers_info[0].testbed_peer,
527 "peerstore", &peerstore_connect_cb,
528 NULL, &peerstore_connect_adapter,
529 &peerstore_disconnect_adapter, NULL);
531 GNUNET_TESTBED_operation_done (op);
536 * Signature of a main function for a testcase.
539 * @param h the run handle
540 * @param num number of peers in 'peers'
541 * @param peers handle to peers run in the testbed. NULL upon timeout (see
542 * GNUNET_TESTBED_test_run()).
543 * @param links_succeeded the number of overlay link connection attempts that
545 * @param links_failed the number of overlay link connection attempts that
547 * @see GNUNET_TESTBED_test_run()
550 test_master (void *cls, struct GNUNET_TESTBED_RunHandle *h, unsigned int num,
551 struct GNUNET_TESTBED_Peer **peers, unsigned int links_succeeded,
552 unsigned int links_failed)
556 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
557 "%d peers started. %d links succeeded. %d links failed.\n",
558 num_peers, links_succeeded, links_failed);
559 GNUNET_assert (num == num_peers);
560 GNUNET_assert (0 == links_failed);
561 /* Collect peer information */
562 all_peers_info = GNUNET_new_array (num_peers, struct PeerInfo);
564 for (i = 0; i < num_peers; i++)
566 GNUNET_TESTBED_peer_get_information (peers[i],
567 GNUNET_TESTBED_PIT_CONFIGURATION,
568 &peer_info_cb, peers[i]);
574 * Verify that the user passed correct CL args
576 * @return #GNUNET_OK if arguments are valid, #GNUNET_SYSERR otherwise
583 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
585 ("Invalid or missing number of peers. Set at least 3 peers.\n"));
586 return GNUNET_SYSERR;
588 if (NULL == topology_file ||
589 GNUNET_YES != GNUNET_DISK_file_test (topology_file))
591 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
592 _("Missing or invalid topology file.\n"));
593 return GNUNET_SYSERR;
600 * Actual main function.
603 * @param args remaining args, unused
604 * @param cfgfile name of the configuration
605 * @param cfg configuration handle
608 run (void *cls, char *const *args, const char *cf,
609 const struct GNUNET_CONFIGURATION_Handle *c)
611 if (GNUNET_OK != verify_args ())
613 do_shutdown (NULL, NULL);
616 cfg = GNUNET_CONFIGURATION_create ();
617 GNUNET_assert (GNUNET_OK == GNUNET_CONFIGURATION_load (cfg, cfg_filename));
618 GNUNET_CONFIGURATION_set_value_string ((struct GNUNET_CONFIGURATION_Handle *)
620 "OVERLAY_TOPOLOGY_FILE",
622 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_FOREVER_REL, &do_shutdown,
624 GNUNET_TESTBED_run (NULL, cfg, num_peers, 0, NULL, NULL, &test_master, NULL);
631 * @return 0 on success
634 main (int argc, char *const *argv)
636 static struct GNUNET_GETOPT_CommandLineOption options[] = {
637 {'p', "peers", "COUNT", gettext_noop ("Number of peers to run"), GNUNET_YES,
638 &GNUNET_GETOPT_set_uint, &num_peers},
639 {'t', "topology-file", "FILEPATH", gettext_noop ("Path to topology file"),
640 GNUNET_YES, &GNUNET_GETOPT_set_filename, &topology_file},
641 {'i', "sensors-interval", "INTERVAL",
642 gettext_noop ("Change the interval or running sensors to given value"),
643 GNUNET_YES, &GNUNET_GETOPT_set_uint, &sensors_interval},
644 GNUNET_GETOPT_OPTION_END
648 GNUNET_PROGRAM_run (argc, argv, "gnunet-sensor-profiler",
649 gettext_noop ("Profiler for sensor service"),
650 options, &run, NULL)) ? ok : 1;
653 /* end of gnunet-sensor-profiler.c */