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/gnunet-dht-driver.c
22 * @brief Driver for setting up a group of gnunet peers and
23 * then issuing GETS and PUTS on the DHT. Coarse results
24 * are reported, fine grained results (if requested) are
25 * logged to a (mysql) database, or to file.
26 * @author Nathan Evans (who to blame)
29 #ifndef HAVE_MALICIOUS
32 #include "gnunet_testing_lib.h"
33 #include "gnunet_core_service.h"
34 #include "gnunet_dht_service.h"
39 #define VERBOSE GNUNET_NO
41 /* Timeout for entire driver to run */
42 #define DEFAULT_TIMEOUT GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MINUTES, 5)
44 /* Timeout for waiting for (individual) replies to get requests */
45 #define DEFAULT_GET_TIMEOUT GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 90)
47 #define DEFAULT_TOPOLOGY_CAPTURE_TIMEOUT GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 90)
49 /* Timeout for waiting for gets to be sent to the service */
50 #define DEFAULT_GET_DELAY GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 10)
52 /* Timeout for waiting for puts to be sent to the service */
53 #define DEFAULT_PUT_DELAY GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 10)
55 /* Time to allow a find peer request to take */
56 #define DEFAULT_FIND_PEER_DELAY GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 40)
58 /* Time to wait for all peers disconnected due to to churn to actually be removed from system */
59 #define DEFAULT_PEER_DISCONNECT_TIMEOUT GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MINUTES, 5)
61 #define DEFAULT_SECONDS_PER_PEER_START GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 45)
63 #define DEFAULT_TEST_DATA_SIZE 8
65 #define DEFAULT_BUCKET_SIZE 4
67 #define FIND_PEER_THRESHOLD 1
69 /* If more than this many peers are added, slow down sending */
70 #define MAX_FIND_PEER_CUTOFF 4000
72 /* If less than this many peers are added, speed up sending */
73 #define MIN_FIND_PEER_CUTOFF 500
75 #define DEFAULT_MAX_OUTSTANDING_PUTS 10
77 #define DEFAULT_MAX_OUTSTANDING_FIND_PEERS 196
79 #define DEFAULT_FIND_PEER_OFFSET GNUNET_TIME_relative_divide (DEFAULT_FIND_PEER_DELAY, DEFAULT_MAX_OUTSTANDING_FIND_PEERS)
81 #define DEFAULT_MAX_OUTSTANDING_GETS 10
83 #define DEFAULT_CONNECT_TIMEOUT 60
85 #define DEFAULT_TOPOLOGY_TIMEOUT GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MINUTES, 8)
87 #define DEFAULT_RECONNECT_ATTEMPTS 8
90 * Default frequency for sending malicious get messages
92 #define DEFAULT_MALICIOUS_GET_FREQUENCY GNUNET_TIME_UNIT_SECONDS
95 * Default frequency for sending malicious put messages
97 #define DEFAULT_MALICIOUS_PUT_FREQUENCY GNUNET_TIME_UNIT_SECONDS
101 struct MaliciousContext
104 * Handle to DHT service (via the API)
106 struct GNUNET_DHT_Handle *dht_handle;
109 * Handle to the peer daemon
111 struct GNUNET_TESTING_Daemon *daemon;
114 * Task for disconnecting DHT handles
116 GNUNET_SCHEDULER_TaskIdentifier disconnect_task;
119 * What type of malicious to set this peer to.
126 /* This is a linked list */
127 struct TestFindPeer *next;
129 /* Handle to the bigger context */
130 struct FindPeerContext *find_peer_context;
133 * Handle to the peer's DHT service (via the API)
135 struct GNUNET_DHT_Handle *dht_handle;
138 * Handle to the peer daemon
140 struct GNUNET_TESTING_Daemon *daemon;
143 * Task for disconnecting DHT handles
145 GNUNET_SCHEDULER_TaskIdentifier disconnect_task;
148 struct TestPutContext
150 /* This is a linked list */
151 struct TestPutContext *next;
154 * Handle to the first peers DHT service (via the API)
156 struct GNUNET_DHT_Handle *dht_handle;
159 * Handle to the PUT peer daemon
161 struct GNUNET_TESTING_Daemon *daemon;
164 * Identifier for this PUT
169 * Task for disconnecting DHT handles
171 GNUNET_SCHEDULER_TaskIdentifier disconnect_task;
174 struct TestGetContext
176 /* This is a linked list */
177 struct TestGetContext *next;
180 * Handle to the first peers DHT service (via the API)
182 struct GNUNET_DHT_Handle *dht_handle;
185 * Handle for the DHT get request
187 struct GNUNET_DHT_GetHandle *get_handle;
190 * Handle to the GET peer daemon
192 struct GNUNET_TESTING_Daemon *daemon;
195 * Identifier for this GET
200 * Task for disconnecting DHT handles (and stopping GET)
202 GNUNET_SCHEDULER_TaskIdentifier disconnect_task;
205 * Whether or not this request has been fulfilled already.
211 * Simple struct to keep track of progress, and print a
212 * nice little percentage meter for long running tasks.
222 unsigned int completed;
226 char *startup_string;
230 * Linked list of information for populating statistics
231 * before ending trial.
233 struct StatisticsIteratorContext
235 const struct GNUNET_PeerIdentity *peer;
236 unsigned int stat_routes;
237 unsigned int stat_route_forwards;
238 unsigned int stat_results;
239 unsigned int stat_results_to_client;
240 unsigned int stat_result_forwards;
241 unsigned int stat_gets;
242 unsigned int stat_puts;
243 unsigned int stat_puts_inserted;
244 unsigned int stat_find_peer;
245 unsigned int stat_find_peer_start;
246 unsigned int stat_get_start;
247 unsigned int stat_put_start;
248 unsigned int stat_find_peer_reply;
249 unsigned int stat_get_reply;
250 unsigned int stat_find_peer_answer;
251 unsigned int stat_get_response_start;
255 * Context for getting a topology, logging it, and continuing
256 * on with some next operation.
258 struct TopologyIteratorContext
260 unsigned int total_iterations;
261 unsigned int current_iteration;
262 unsigned int total_connections;
263 unsigned int total_peers;
264 struct GNUNET_CONTAINER_MultiHashMap *peers_seen;
265 struct GNUNET_PeerIdentity *peer;
266 GNUNET_SCHEDULER_Task cont;
268 struct GNUNET_TIME_Relative timeout;
274 /** Node in the heap */
275 struct GNUNET_CONTAINER_HeapNode *heap_node;
277 /** Peer the count refers to */
278 struct GNUNET_PeerIdentity peer_id;
280 /** Count of connections this peer has */
285 * Context for sending out find peer requests.
287 struct FindPeerContext
290 * How long to send find peer requests, once the settle time
291 * is over don't send any more out!
293 * TODO: Add option for settle time and find peer sending time?
295 struct GNUNET_TIME_Absolute endtime;
298 * Number of connections in the current topology
299 * (after this round of find peer requests has ended).
301 unsigned int current_peers;
304 * Number of connections in the current topology
305 * (before this round of find peer requests started).
307 unsigned int previous_peers;
310 * Number of find peer requests we have currently
313 unsigned int outstanding;
316 * Number of find peer requests to send in this round.
321 * Number of find peer requests sent last time around.
323 unsigned int last_sent;
326 * Hashmap of peers in the current topology, value
327 * is a PeerCount, with the number of connections
330 struct GNUNET_CONTAINER_MultiHashMap *peer_hash;
333 * Min heap which orders values in the peer_hash for
336 struct GNUNET_CONTAINER_Heap *peer_min_heap;
339 * Callback for counting the peers in the current topology.
341 GNUNET_TESTING_NotifyTopology count_peers_cb;
347 * Next full round (puts + gets).
352 * Next round of gets.
357 * Next round of puts.
362 * Next round of churn.
372 * Timeout to let all get requests happen.
374 static struct GNUNET_TIME_Relative all_get_timeout;
379 static struct GNUNET_TIME_Relative get_timeout;
381 static struct GNUNET_TIME_Relative get_delay;
383 static struct GNUNET_TIME_Relative put_delay;
385 static struct GNUNET_TIME_Relative find_peer_delay;
387 static struct GNUNET_TIME_Relative find_peer_offset;
389 static struct GNUNET_TIME_Relative seconds_per_peer_start;
391 static unsigned int do_find_peer;
393 static unsigned int in_dht_replication;
395 static unsigned long long test_data_size = DEFAULT_TEST_DATA_SIZE;
397 static unsigned long long max_outstanding_puts = DEFAULT_MAX_OUTSTANDING_PUTS;
399 static unsigned long long max_outstanding_gets = DEFAULT_MAX_OUTSTANDING_GETS;
401 static unsigned long long malicious_getters;
403 static unsigned long long max_outstanding_find_peers;
405 static unsigned long long malicious_putters;
407 static unsigned long long round_delay;
409 static unsigned long long malicious_droppers;
411 static struct GNUNET_TIME_Relative malicious_get_frequency;
413 static struct GNUNET_TIME_Relative malicious_put_frequency;
415 static unsigned long long settle_time;
417 static unsigned long long trial_to_run;
419 static struct GNUNET_DHTLOG_Handle *dhtlog_handle;
421 static unsigned long long trialuid;
424 * If GNUNET_YES, insert data at the same peers every time.
425 * Otherwise, choose a new random peer to insert at each time.
427 static unsigned int replicate_same;
430 * If GNUNET_YES, issue GET requests at the same peers every time.
431 * Otherwise, choose a new random peer/data combination to search
434 static unsigned int get_from_same;
437 * Number of rounds for testing (PUTS + GETS)
439 static unsigned long long total_rounds;
442 * Number of rounds already run
444 static unsigned int rounds_finished;
447 * Number of rounds of churn to read from the file (first line, should be a single number).
449 static unsigned int churn_rounds;
452 * Current round we are in for churn, tells us how many peers to connect/disconnect.
454 static unsigned int current_churn_round;
457 * Number of times to churn per round
459 static unsigned long long churns_per_round;
462 * Array of churn values.
464 static unsigned int *churn_array;
467 * Hash map of stats contexts.
469 struct GNUNET_CONTAINER_MultiHashMap *stats_map;
472 * LL of malicious settings.
474 struct MaliciousContext *all_malicious;
477 * List of GETS to perform
479 struct TestGetContext *all_gets;
482 * List of PUTS to perform
484 struct TestPutContext *all_puts;
487 * Directory to store temporary data in, defined in config file
489 static char *test_directory;
492 * Variable used to store the number of connections we should wait for.
494 static unsigned int expected_connections;
497 * Variable used to keep track of how many peers aren't yet started.
499 static unsigned long long peers_left;
502 * Handle to the set of all peers run for this test.
504 static struct GNUNET_TESTING_PeerGroup *pg;
507 * Global scheduler, used for all GNUNET_SCHEDULER_* functions.
509 static struct GNUNET_SCHEDULER_Handle *sched;
512 * Global config handle.
514 const struct GNUNET_CONFIGURATION_Handle *config;
517 * Total number of peers to run, set based on config file.
519 static unsigned long long num_peers;
522 * Total number of items to insert.
524 static unsigned long long num_puts;
527 * How many puts do we currently have in flight?
529 static unsigned long long outstanding_puts;
532 * How many puts are done?
534 static unsigned long long puts_completed;
537 * Total number of items to attempt to get.
539 static unsigned long long num_gets;
542 * How many puts do we currently have in flight?
544 static unsigned long long outstanding_gets;
547 * How many gets are done?
549 static unsigned long long gets_completed;
552 * How many gets failed?
554 static unsigned long long gets_failed;
557 * How many malicious control messages do
558 * we currently have in flight?
560 static unsigned long long outstanding_malicious;
563 * How many set malicious peers are done?
565 static unsigned long long malicious_completed;
568 * Global used to count how many connections we have currently
569 * been notified about (how many times has topology_callback been called
572 static unsigned int total_connections;
575 * Global used to count how many failed connections we have
576 * been notified about (how many times has topology_callback
577 * been called with failure?)
579 static unsigned int failed_connections;
581 /* Task handle to use to schedule shutdown if something goes wrong */
582 GNUNET_SCHEDULER_TaskIdentifier die_task;
584 static char *blacklist_transports;
586 static enum GNUNET_TESTING_Topology topology;
588 static enum GNUNET_TESTING_Topology blacklist_topology = GNUNET_TESTING_TOPOLOGY_NONE; /* Don't do any blacklisting */
590 static enum GNUNET_TESTING_Topology connect_topology = GNUNET_TESTING_TOPOLOGY_NONE; /* NONE actually means connect all allowed peers */
592 static enum GNUNET_TESTING_TopologyOption connect_topology_option = GNUNET_TESTING_TOPOLOGY_OPTION_ALL;
594 static double connect_topology_option_modifier = 0.0;
596 static struct ProgressMeter *hostkey_meter;
598 static struct ProgressMeter *peer_start_meter;
600 static struct ProgressMeter *peer_connect_meter;
602 static struct ProgressMeter *put_meter;
604 static struct ProgressMeter *get_meter;
606 static GNUNET_HashCode *known_keys;
608 /* Global return value (0 for success, anything else for failure) */
612 * Create a meter to keep track of the progress of some task.
614 * @param total the total number of items to complete
615 * @param start_string a string to prefix the meter with (if printing)
616 * @param print GNUNET_YES to print the meter, GNUNET_NO to count
619 * @return the progress meter
621 static struct ProgressMeter *
622 create_meter(unsigned int total, char * start_string, int print)
624 struct ProgressMeter *ret;
625 ret = GNUNET_malloc(sizeof(struct ProgressMeter));
628 ret->modnum = total / 4;
629 ret->dotnum = (total / 50) + 1;
630 if (start_string != NULL)
631 ret->startup_string = GNUNET_strdup(start_string);
633 ret->startup_string = GNUNET_strdup("");
639 * Update progress meter (increment by one).
641 * @param meter the meter to update and print info for
643 * @return GNUNET_YES if called the total requested,
644 * GNUNET_NO if more items expected
647 update_meter(struct ProgressMeter *meter)
649 if (meter->print == GNUNET_YES)
651 if (meter->completed % meter->modnum == 0)
653 if (meter->completed == 0)
655 fprintf(stdout, "%sProgress: [0%%", meter->startup_string);
658 fprintf(stdout, "%d%%", (int)(((float)meter->completed / meter->total) * 100));
660 else if (meter->completed % meter->dotnum == 0)
661 fprintf(stdout, ".");
663 if (meter->completed + 1 == meter->total)
664 fprintf(stdout, "%d%%]\n", 100);
669 if (meter->completed == meter->total)
675 * Reset progress meter.
677 * @param meter the meter to reset
679 * @return GNUNET_YES if meter reset,
680 * GNUNET_SYSERR on error
683 reset_meter(struct ProgressMeter *meter)
686 return GNUNET_SYSERR;
688 meter->completed = 0;
693 * Release resources for meter
695 * @param meter the meter to free
698 free_meter(struct ProgressMeter *meter)
700 GNUNET_free_non_null(meter->startup_string);
701 GNUNET_free_non_null(meter);
705 * Check whether peers successfully shut down.
708 shutdown_callback (void *cls,
719 * Task to release DHT handles for PUT
722 put_disconnect_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
724 struct TestPutContext *test_put = cls;
725 test_put->disconnect_task = GNUNET_SCHEDULER_NO_TASK;
726 GNUNET_DHT_disconnect(test_put->dht_handle);
727 test_put->dht_handle = NULL;
728 test_put->daemon = GNUNET_TESTING_daemon_get(pg, GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers));
732 * Function scheduled to be run on the successful completion of this
736 finish_testing (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
738 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Ending test normally!\n", (char *)cls);
739 GNUNET_assert (pg != NULL);
740 struct TestPutContext *test_put = all_puts;
741 struct TestGetContext *test_get = all_gets;
743 while (test_put != NULL)
745 if (test_put->disconnect_task != GNUNET_SCHEDULER_NO_TASK)
746 GNUNET_SCHEDULER_cancel(sched, test_put->disconnect_task);
747 if (test_put->dht_handle != NULL)
748 GNUNET_DHT_disconnect(test_put->dht_handle);
749 test_put = test_put->next;
752 while (test_get != NULL)
754 if (test_get->disconnect_task != GNUNET_SCHEDULER_NO_TASK)
755 GNUNET_SCHEDULER_cancel(sched, test_get->disconnect_task);
756 if (test_get->get_handle != NULL)
757 GNUNET_DHT_get_stop(test_get->get_handle);
758 if (test_get->dht_handle != NULL)
759 GNUNET_DHT_disconnect(test_get->dht_handle);
760 test_get = test_get->next;
763 GNUNET_TESTING_daemons_stop (pg, DEFAULT_TIMEOUT, &shutdown_callback, NULL);
765 if (dhtlog_handle != NULL)
767 fprintf(stderr, "Update trial endtime\n");
768 dhtlog_handle->update_trial (trialuid, gets_completed);
769 GNUNET_DHTLOG_disconnect(dhtlog_handle);
770 dhtlog_handle = NULL;
773 if (hostkey_meter != NULL)
774 free_meter(hostkey_meter);
775 if (peer_start_meter != NULL)
776 free_meter(peer_start_meter);
777 if (peer_connect_meter != NULL)
778 free_meter(peer_connect_meter);
779 if (put_meter != NULL)
780 free_meter(put_meter);
781 if (get_meter != NULL)
782 free_meter(get_meter);
788 * Callback for iterating over all the peer connections of a peer group.
791 log_topology_cb (void *cls,
792 const struct GNUNET_PeerIdentity *first,
793 const struct GNUNET_PeerIdentity *second,
794 struct GNUNET_TIME_Relative latency,
798 struct TopologyIteratorContext *topo_ctx = cls;
799 if ((first != NULL) && (second != NULL))
801 if ((topo_ctx->peers_seen != NULL) && (GNUNET_NO == GNUNET_CONTAINER_multihashmap_contains(topo_ctx->peers_seen, &first->hashPubKey)))
803 GNUNET_CONTAINER_multihashmap_put(topo_ctx->peers_seen, &first->hashPubKey, NULL, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
804 topo_ctx->total_peers++;
806 topo_ctx->total_connections++;
807 if (GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno(config, "dht_testing", "mysql_logging_extended"))
808 dhtlog_handle->insert_extended_topology(first, second);
812 GNUNET_assert(dhtlog_handle != NULL);
813 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Topology iteration (%u/%u) finished (%u connections, %u peers)\n", topo_ctx->current_iteration, topo_ctx->total_iterations, topo_ctx->total_connections, topo_ctx->total_peers);
814 dhtlog_handle->update_topology(topo_ctx->total_connections);
815 if (topo_ctx->cont != NULL)
816 GNUNET_SCHEDULER_add_now (sched, topo_ctx->cont, topo_ctx->cls);
817 if (topo_ctx->peers_seen != NULL)
818 GNUNET_CONTAINER_multihashmap_destroy(topo_ctx->peers_seen);
819 GNUNET_free(topo_ctx);
824 * Iterator over hash map entries.
826 * @param cls closure - always NULL
827 * @param key current key code
828 * @param value value in the hash map, a stats context
829 * @return GNUNET_YES if we should continue to
833 static int stats_iterate (void *cls,
834 const GNUNET_HashCode * key,
837 struct StatisticsIteratorContext *stats_ctx;
841 dhtlog_handle->insert_stat(stats_ctx->peer, stats_ctx->stat_routes, stats_ctx->stat_route_forwards, stats_ctx->stat_results,
842 stats_ctx->stat_results_to_client, stats_ctx->stat_result_forwards, stats_ctx->stat_gets,
843 stats_ctx->stat_puts, stats_ctx->stat_puts_inserted, stats_ctx->stat_find_peer,
844 stats_ctx->stat_find_peer_start, stats_ctx->stat_get_start, stats_ctx->stat_put_start,
845 stats_ctx->stat_find_peer_reply, stats_ctx->stat_get_reply, stats_ctx->stat_find_peer_answer,
846 stats_ctx->stat_get_response_start);
847 GNUNET_free(stats_ctx);
852 stats_finished (void *cls, int result)
854 fprintf(stderr, "Finished getting all peers statistics, iterating!\n");
855 GNUNET_CONTAINER_multihashmap_iterate(stats_map, &stats_iterate, NULL);
856 GNUNET_CONTAINER_multihashmap_destroy(stats_map);
857 GNUNET_SCHEDULER_add_now (sched, &finish_testing, NULL);
861 * Callback function to process statistic values.
864 * @param peer the peer the statistics belong to
865 * @param subsystem name of subsystem that created the statistic
866 * @param name the name of the datum
867 * @param value the current value
868 * @param is_persistent GNUNET_YES if the value is persistent, GNUNET_NO if not
869 * @return GNUNET_OK to continue, GNUNET_SYSERR to abort iteration
871 static int stats_handle (void *cls,
872 const struct GNUNET_PeerIdentity *peer,
873 const char *subsystem,
878 struct StatisticsIteratorContext *stats_ctx;
880 if (dhtlog_handle != NULL)
881 dhtlog_handle->add_generic_stat(peer, name, subsystem, value);
882 if (GNUNET_CONTAINER_multihashmap_contains(stats_map, &peer->hashPubKey))
884 stats_ctx = GNUNET_CONTAINER_multihashmap_get(stats_map, &peer->hashPubKey);
888 stats_ctx = GNUNET_malloc(sizeof(struct StatisticsIteratorContext));
889 stats_ctx->peer = peer;
890 GNUNET_CONTAINER_multihashmap_put(stats_map, &peer->hashPubKey, stats_ctx, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
892 GNUNET_assert(stats_ctx != NULL);
894 if (strcmp(name, STAT_ROUTES) == 0)
895 stats_ctx->stat_routes = value;
896 else if (strcmp(name, STAT_ROUTE_FORWARDS) == 0)
897 stats_ctx->stat_route_forwards = value;
898 else if (strcmp(name, STAT_RESULTS) == 0)
899 stats_ctx->stat_results = value;
900 else if (strcmp(name, STAT_RESULTS_TO_CLIENT) == 0)
901 stats_ctx->stat_results_to_client = value;
902 else if (strcmp(name, STAT_RESULT_FORWARDS) == 0)
903 stats_ctx->stat_result_forwards = value;
904 else if (strcmp(name, STAT_GETS) == 0)
905 stats_ctx->stat_gets = value;
906 else if (strcmp(name, STAT_PUTS) == 0)
907 stats_ctx->stat_puts = value;
908 else if (strcmp(name, STAT_PUTS_INSERTED) == 0)
909 stats_ctx->stat_puts_inserted = value;
910 else if (strcmp(name, STAT_FIND_PEER) == 0)
911 stats_ctx->stat_find_peer = value;
912 else if (strcmp(name, STAT_FIND_PEER_START) == 0)
913 stats_ctx->stat_find_peer_start = value;
914 else if (strcmp(name, STAT_GET_START) == 0)
915 stats_ctx->stat_get_start = value;
916 else if (strcmp(name, STAT_PUT_START) == 0)
917 stats_ctx->stat_put_start = value;
918 else if (strcmp(name, STAT_FIND_PEER_REPLY) == 0)
919 stats_ctx->stat_find_peer_reply = value;
920 else if (strcmp(name, STAT_GET_REPLY) == 0)
921 stats_ctx->stat_get_reply = value;
922 else if (strcmp(name, STAT_FIND_PEER_ANSWER) == 0)
923 stats_ctx->stat_find_peer_answer = value;
924 else if (strcmp(name, STAT_GET_RESPONSE_START) == 0)
925 stats_ctx->stat_get_response_start = value;
931 * Connect to statistics service for each peer and get the appropriate
932 * dht statistics for safe keeping.
935 log_dht_statistics (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
937 stats_map = GNUNET_CONTAINER_multihashmap_create(num_peers);
938 fprintf(stderr, "Starting statistics logging\n");
939 GNUNET_TESTING_get_statistics(pg, &stats_finished, &stats_handle, NULL);
944 * Connect to all peers in the peer group and iterate over their
948 capture_current_topology (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
950 struct TopologyIteratorContext *topo_ctx = cls;
951 dhtlog_handle->insert_topology(0);
952 GNUNET_TESTING_get_topology (pg, &log_topology_cb, topo_ctx);
957 * Check if the get_handle is being used, if so stop the request. Either
958 * way, schedule the end_badly_cont function which actually shuts down the
962 end_badly (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
964 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Failing test with error: `%s'!\n", (char *)cls);
966 struct TestPutContext *test_put = all_puts;
967 struct TestGetContext *test_get = all_gets;
969 while (test_put != NULL)
971 if (test_put->disconnect_task != GNUNET_SCHEDULER_NO_TASK)
972 GNUNET_SCHEDULER_cancel(sched, test_put->disconnect_task);
973 if (test_put->dht_handle != NULL)
974 GNUNET_DHT_disconnect(test_put->dht_handle);
975 test_put = test_put->next;
978 while (test_get != NULL)
980 if (test_get->disconnect_task != GNUNET_SCHEDULER_NO_TASK)
981 GNUNET_SCHEDULER_cancel(sched, test_get->disconnect_task);
982 if (test_get->get_handle != NULL)
983 GNUNET_DHT_get_stop(test_get->get_handle);
984 if (test_get->dht_handle != NULL)
985 GNUNET_DHT_disconnect(test_get->dht_handle);
986 test_get = test_get->next;
989 GNUNET_TESTING_daemons_stop (pg, DEFAULT_TIMEOUT, &shutdown_callback, NULL);
991 if (dhtlog_handle != NULL)
993 fprintf(stderr, "Update trial endtime\n");
994 dhtlog_handle->update_trial (trialuid, gets_completed);
995 GNUNET_DHTLOG_disconnect(dhtlog_handle);
996 dhtlog_handle = NULL;
999 if (hostkey_meter != NULL)
1000 free_meter(hostkey_meter);
1001 if (peer_start_meter != NULL)
1002 free_meter(peer_start_meter);
1003 if (peer_connect_meter != NULL)
1004 free_meter(peer_connect_meter);
1005 if (put_meter != NULL)
1006 free_meter(put_meter);
1007 if (get_meter != NULL)
1008 free_meter(get_meter);
1014 * Forward declaration.
1017 do_put (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc);
1020 * Forward declaration.
1023 do_get (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc);
1026 * Iterator over hash map entries.
1028 * @param cls closure
1029 * @param key current key code
1030 * @param value value in the hash map
1031 * @return GNUNET_YES if we should continue to
1035 static int remove_peer_count (void *cls,
1036 const GNUNET_HashCode * key,
1039 struct FindPeerContext *find_peer_ctx = cls;
1040 struct PeerCount *peer_count = value;
1041 GNUNET_CONTAINER_heap_remove_node(find_peer_ctx->peer_min_heap, peer_count->heap_node);
1042 GNUNET_free(peer_count);
1048 * Connect to all peers in the peer group and iterate over their
1052 count_new_peers (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1054 struct FindPeerContext *find_peer_context = cls;
1055 find_peer_context->previous_peers = find_peer_context->current_peers;
1056 find_peer_context->current_peers = 0;
1057 GNUNET_TESTING_get_topology (pg, find_peer_context->count_peers_cb, find_peer_context);
1061 decrement_find_peers (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1063 struct TestFindPeer *test_find_peer = cls;
1064 GNUNET_assert(test_find_peer->find_peer_context->outstanding > 0);
1065 test_find_peer->find_peer_context->outstanding--;
1066 test_find_peer->find_peer_context->total--;
1067 if ((0 == test_find_peer->find_peer_context->total) &&
1068 (GNUNET_TIME_absolute_get_remaining(test_find_peer->find_peer_context->endtime).rel_value > 60))
1070 GNUNET_SCHEDULER_add_now(sched, &count_new_peers, test_find_peer->find_peer_context);
1072 GNUNET_free(test_find_peer);
1076 * A find peer request has been sent to the server, now we will schedule a task
1077 * to wait the appropriate time to allow the request to go out and back.
1079 * @param cls closure - a TestFindPeer struct
1080 * @param tc context the task is being called with
1083 handle_find_peer_sent (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1085 struct TestFindPeer *test_find_peer = cls;
1087 GNUNET_DHT_disconnect(test_find_peer->dht_handle);
1088 GNUNET_SCHEDULER_add_delayed(sched, GNUNET_TIME_relative_divide(find_peer_delay, 2), &decrement_find_peers, test_find_peer);
1093 send_find_peer_request (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1095 struct TestFindPeer *test_find_peer = cls;
1097 if (test_find_peer->find_peer_context->outstanding > max_outstanding_find_peers)
1099 GNUNET_SCHEDULER_add_delayed(sched, find_peer_offset, &send_find_peer_request, test_find_peer);
1103 test_find_peer->find_peer_context->outstanding++;
1104 if (GNUNET_TIME_absolute_get_remaining(test_find_peer->find_peer_context->endtime).rel_value == 0)
1106 GNUNET_SCHEDULER_add_now(sched, &decrement_find_peers, test_find_peer);
1110 test_find_peer->dht_handle = GNUNET_DHT_connect(sched, test_find_peer->daemon->cfg, 1);
1111 GNUNET_assert(test_find_peer->dht_handle != NULL);
1112 GNUNET_DHT_find_peers (test_find_peer->dht_handle,
1113 &handle_find_peer_sent, test_find_peer);
1118 * Add a connection to the find_peer_context given. This may
1119 * be complete overkill, but allows us to choose the peers with
1120 * the least connections to initiate find peer requests from.
1122 static void add_new_connection(struct FindPeerContext *find_peer_context,
1123 const struct GNUNET_PeerIdentity *first,
1124 const struct GNUNET_PeerIdentity *second)
1126 struct PeerCount *first_count;
1127 struct PeerCount *second_count;
1129 if (GNUNET_CONTAINER_multihashmap_contains(find_peer_context->peer_hash, &first->hashPubKey))
1131 first_count = GNUNET_CONTAINER_multihashmap_get(find_peer_context->peer_hash, &first->hashPubKey);
1132 first_count->count++;
1133 GNUNET_CONTAINER_heap_update_cost(find_peer_context->peer_min_heap, first_count->heap_node, first_count->count);
1137 first_count = GNUNET_malloc(sizeof(struct PeerCount));
1138 first_count->count = 1;
1139 memcpy(&first_count->peer_id, first, sizeof(struct GNUNET_PeerIdentity));
1140 first_count->heap_node = GNUNET_CONTAINER_heap_insert(find_peer_context->peer_min_heap, first_count, first_count->count);
1141 GNUNET_CONTAINER_multihashmap_put(find_peer_context->peer_hash, &first->hashPubKey, first_count, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
1144 if (GNUNET_CONTAINER_multihashmap_contains(find_peer_context->peer_hash, &second->hashPubKey))
1146 second_count = GNUNET_CONTAINER_multihashmap_get(find_peer_context->peer_hash, &second->hashPubKey);
1147 second_count->count++;
1148 GNUNET_CONTAINER_heap_update_cost(find_peer_context->peer_min_heap, second_count->heap_node, second_count->count);
1152 second_count = GNUNET_malloc(sizeof(struct PeerCount));
1153 second_count->count = 1;
1154 memcpy(&second_count->peer_id, second, sizeof(struct GNUNET_PeerIdentity));
1155 second_count->heap_node = GNUNET_CONTAINER_heap_insert(find_peer_context->peer_min_heap, second_count, second_count->count);
1156 GNUNET_CONTAINER_multihashmap_put(find_peer_context->peer_hash, &second->hashPubKey, second_count, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
1162 * Iterate over min heap of connections per peer. For any
1163 * peer that has 0 connections, attempt to connect them to
1166 * @param cls closure a struct FindPeerContext
1167 * @param node internal node of the heap
1168 * @param element value stored, a struct PeerCount
1169 * @param cost cost associated with the node
1170 * @return GNUNET_YES if we should continue to iterate,
1173 static int iterate_min_heap_peers (void *cls,
1174 struct GNUNET_CONTAINER_HeapNode *node,
1176 GNUNET_CONTAINER_HeapCostType cost)
1178 struct FindPeerContext *find_peer_context = cls;
1179 struct PeerCount *peer_count = element;
1180 struct GNUNET_TESTING_Daemon *d1;
1181 struct GNUNET_TESTING_Daemon *d2;
1182 struct GNUNET_TIME_Relative timeout;
1185 d1 = GNUNET_TESTING_daemon_get_by_id (pg, &peer_count->peer_id);
1187 while ((d2 == d1) || (GNUNET_YES != GNUNET_TESTING_daemon_running(d2)))
1189 d2 = GNUNET_TESTING_daemon_get(pg, GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers));
1192 /** Just try to connect the peers, don't worry about callbacks, etc. **/
1193 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Peer %s has 0 connections. Trying to connect to %s...\n", GNUNET_i2s(&peer_count->peer_id), d2->shortname);
1194 timeout = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, DEFAULT_CONNECT_TIMEOUT);
1195 if (GNUNET_TIME_relative_to_absolute(timeout).abs_value > find_peer_context->endtime.abs_value)
1197 timeout = GNUNET_TIME_absolute_get_remaining(find_peer_context->endtime);
1199 GNUNET_TESTING_daemons_connect(d1, d2, timeout, DEFAULT_RECONNECT_ATTEMPTS, NULL, NULL);
1201 if (GNUNET_TIME_absolute_get_remaining(find_peer_context->endtime).rel_value > 0)
1208 * Forward declaration.
1211 schedule_churn_find_peer_requests (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc);
1214 * Callback for iterating over all the peer connections of a peer group.
1215 * Used after we have churned on some peers to find which ones have zero
1216 * connections so we can make them issue find peer requests.
1219 count_peers_churn_cb (void *cls,
1220 const struct GNUNET_PeerIdentity *first,
1221 const struct GNUNET_PeerIdentity *second,
1222 struct GNUNET_TIME_Relative latency,
1226 struct FindPeerContext *find_peer_context = cls;
1227 struct TopologyIteratorContext *topo_ctx;
1228 struct PeerCount *peer_count;
1230 if ((first != NULL) && (second != NULL))
1232 add_new_connection(find_peer_context, first, second);
1233 find_peer_context->current_peers++;
1237 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Peer count finished (%u connections)\n",
1238 find_peer_context->current_peers);
1239 peer_count = GNUNET_CONTAINER_heap_peek(find_peer_context->peer_min_heap);
1241 /* WAIT. When peers are churned they will come back with their peers (at least in peerinfo), because the HOSTS file doesn't likely get removed. CRAP. */
1242 /* NO they won't, because we have disabled peerinfo writing to disk (remember?) so we WILL have to give them new connections */
1243 /* Best course of action: have DHT automatically try to add peers from peerinfo on startup. This way IF peerinfo writes to file
1244 * then some peers will end up connected.
1246 * Also, find any peers that have zero connections here and set up a task to choose at random another peer in the network to
1247 * connect to. Of course, if they are blacklisted from that peer they won't be able to connect, so we will have to keep trying
1248 * until they get a peer.
1250 /* However, they won't automatically be connected to any of their previous peers... How can we handle that? */
1251 /* So now we have choices: do we want them to come back with all their connections? Probably not, but it solves this mess. */
1253 /* Second problem, which is still a problem, is that a FIND_PEER request won't work when a peer has no connections */
1256 * Okay, so here's how this *should* work now.
1258 * 1. We check the min heap for any peers that have 0 connections.
1259 * a. If any are found, we iterate over the heap and just randomly
1260 * choose another peer and ask testing to please connect the two.
1261 * This takes care of the case that a peer just randomly joins the
1262 * network. However, if there are strict topology restrictions
1263 * (imagine a ring) choosing randomly most likely won't help.
1264 * We make sure the connection attempt doesn't take longer than
1265 * the total timeout, but don't care too much about the result.
1266 * b. After that, we still schedule the find peer requests (concurrently
1267 * with the connect attempts most likely). This handles the case
1268 * that the DHT iterates over peerinfo and just needs to try to send
1269 * a message to get connected. This should handle the case that the
1270 * topology is very strict.
1272 * 2. If all peers have > 0 connections, we still send find peer requests
1273 * as long as possible (until timeout is reached) to help out those
1274 * peers that were newly churned and need more connections. This is because
1275 * once all new peers have established a single connection, they won't be
1278 * 3. Once we reach the timeout, we can do no more. We must schedule the
1279 * next iteration of get requests regardless of connections that peers
1280 * may or may not have.
1282 * Caveat: it would be nice to get peers to take data offline with them and
1283 * come back with it (or not) based on the testing framework. The
1284 * same goes for remembering previous connections, but putting either
1285 * into the general testing churn options seems like overkill because
1286 * these are very specialized cases.
1288 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Out of %u peers, fewest connections is %d\n", GNUNET_CONTAINER_heap_get_size(find_peer_context->peer_min_heap), peer_count->count);
1289 if ((peer_count->count == 0) && (GNUNET_TIME_absolute_get_remaining(find_peer_context->endtime).rel_value > 0))
1291 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Found peer with no connections, will choose some peer(s) at random to connect to!\n");
1292 GNUNET_CONTAINER_heap_iterate (find_peer_context->peer_min_heap, &iterate_min_heap_peers, find_peer_context);
1293 GNUNET_SCHEDULER_add_now(sched, &schedule_churn_find_peer_requests, find_peer_context);
1295 else if ((GNUNET_TIME_absolute_get_remaining(find_peer_context->endtime).rel_value > 0) && (find_peer_context->last_sent != 0))
1297 GNUNET_SCHEDULER_add_now(sched, &schedule_churn_find_peer_requests, find_peer_context);
1301 GNUNET_CONTAINER_multihashmap_iterate(find_peer_context->peer_hash, &remove_peer_count, find_peer_context);
1302 GNUNET_CONTAINER_multihashmap_destroy(find_peer_context->peer_hash);
1303 GNUNET_CONTAINER_heap_destroy(find_peer_context->peer_min_heap);
1304 GNUNET_free(find_peer_context);
1305 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Churn round %u of %llu finished, scheduling next GET round.\n", current_churn_round, churn_rounds);
1306 if (dhtlog_handle != NULL)
1308 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
1309 topo_ctx->cont = &do_get;
1310 topo_ctx->cls = all_gets;
1311 topo_ctx->timeout = DEFAULT_GET_TIMEOUT;
1312 topo_ctx->peers_seen = GNUNET_CONTAINER_multihashmap_create(num_peers);
1313 die_task = GNUNET_SCHEDULER_add_delayed (sched, GNUNET_TIME_relative_add(GNUNET_TIME_relative_add(DEFAULT_GET_TIMEOUT, all_get_timeout), DEFAULT_TOPOLOGY_CAPTURE_TIMEOUT),
1314 &end_badly, "from do gets (count_peers_churn_cb)");
1315 GNUNET_SCHEDULER_add_now(sched, &capture_current_topology, topo_ctx);
1319 die_task = GNUNET_SCHEDULER_add_delayed (sched, GNUNET_TIME_relative_add(GNUNET_TIME_relative_add(DEFAULT_GET_TIMEOUT, all_get_timeout), DEFAULT_TOPOLOGY_CAPTURE_TIMEOUT),
1320 &end_badly, "from do gets (count_peers_churn_cb)");
1321 GNUNET_SCHEDULER_add_now(sched, &do_get, all_gets);
1328 * Set up a single find peer request for each peer in the topology. Do this
1329 * until the settle time is over, limited by the number of outstanding requests
1330 * and the time allowed for each one!
1333 schedule_churn_find_peer_requests (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1335 struct FindPeerContext *find_peer_ctx = cls;
1336 struct TestFindPeer *test_find_peer;
1337 struct PeerCount *peer_count;
1340 if (find_peer_ctx->previous_peers == 0) /* First time, go slowly */
1341 find_peer_ctx->total = 1;
1342 else if (find_peer_ctx->current_peers - find_peer_ctx->previous_peers < MIN_FIND_PEER_CUTOFF)
1343 find_peer_ctx->total = find_peer_ctx->total / 2;
1344 else if (find_peer_ctx->current_peers - find_peer_ctx->previous_peers > MAX_FIND_PEER_CUTOFF) /* Found LOTS of peers, still go slowly */
1345 find_peer_ctx->total = find_peer_ctx->last_sent - (find_peer_ctx->last_sent / 4);
1347 find_peer_ctx->total = find_peer_ctx->last_sent * 4;
1349 if (find_peer_ctx->total > max_outstanding_find_peers)
1350 find_peer_ctx->total = max_outstanding_find_peers;
1352 find_peer_ctx->last_sent = find_peer_ctx->total;
1353 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Sending %u find peer messages (after churn)\n", find_peer_ctx->total);
1355 if (find_peer_ctx->total > 0)
1356 find_peer_offset = GNUNET_TIME_relative_divide(find_peer_delay, find_peer_ctx->total);
1359 find_peer_ctx->previous_peers = find_peer_ctx->current_peers;
1360 find_peer_ctx->current_peers = 0;
1361 GNUNET_TESTING_get_topology (pg, &count_peers_churn_cb, find_peer_ctx);
1365 for (i = 0; i < find_peer_ctx->total; i++)
1367 test_find_peer = GNUNET_malloc(sizeof(struct TestFindPeer));
1368 /* If we have sent requests, choose peers with a low number of connections to send requests from */
1369 peer_count = GNUNET_CONTAINER_heap_remove_root(find_peer_ctx->peer_min_heap);
1370 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Sending find peer request from peer with %u connections\n", peer_count->count);
1371 GNUNET_CONTAINER_multihashmap_remove(find_peer_ctx->peer_hash, &peer_count->peer_id.hashPubKey, peer_count);
1372 test_find_peer->daemon = GNUNET_TESTING_daemon_get_by_id(pg, &peer_count->peer_id);
1373 GNUNET_assert(test_find_peer->daemon != NULL);
1374 test_find_peer->find_peer_context = find_peer_ctx;
1375 GNUNET_SCHEDULER_add_delayed(sched, GNUNET_TIME_relative_multiply(find_peer_offset, i), &send_find_peer_request, test_find_peer);
1378 if ((find_peer_ctx->peer_hash == NULL) && (find_peer_ctx->peer_min_heap == NULL))
1380 find_peer_ctx->peer_hash = GNUNET_CONTAINER_multihashmap_create(num_peers);
1381 find_peer_ctx->peer_min_heap = GNUNET_CONTAINER_heap_create(GNUNET_CONTAINER_HEAP_ORDER_MIN);
1385 GNUNET_CONTAINER_multihashmap_iterate(find_peer_ctx->peer_hash, &remove_peer_count, find_peer_ctx);
1386 GNUNET_CONTAINER_multihashmap_destroy(find_peer_ctx->peer_hash);
1387 find_peer_ctx->peer_hash = GNUNET_CONTAINER_multihashmap_create(num_peers);
1390 GNUNET_assert(0 == GNUNET_CONTAINER_multihashmap_size(find_peer_ctx->peer_hash));
1391 GNUNET_assert(0 == GNUNET_CONTAINER_heap_get_size(find_peer_ctx->peer_min_heap));
1394 static void schedule_churn_get_topology (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1396 struct FindPeerContext *find_peer_context = cls;
1397 GNUNET_TESTING_get_topology (pg, &count_peers_churn_cb, find_peer_context);
1401 * Called when churning of the topology has finished.
1403 * @param cls closure unused
1404 * @param emsg NULL on success, or a printable error on failure
1406 static void churn_complete (void *cls, const char *emsg)
1408 struct FindPeerContext *find_peer_context = cls;
1409 struct PeerCount *peer_count;
1411 struct GNUNET_TESTING_Daemon *temp_daemon;
1412 struct TopologyIteratorContext *topo_ctx;
1413 struct GNUNET_TIME_Relative calc_timeout;
1418 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Ending test, churning of peers failed with error `%s'", emsg);
1419 GNUNET_SCHEDULER_add_now(sched, &end_badly, (void *)emsg);
1424 * If we switched any peers on, we have to somehow force connect the new peer to
1425 * SOME bootstrap peer in the network. First schedule a task to find all peers
1426 * with no connections, then choose a random peer for each and connect them.
1428 if (find_peer_context != NULL)
1430 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "We have churned on some peers, so we must schedule find peer requests for them!\n");
1432 for (i = 0; i < num_peers; i ++)
1434 temp_daemon = GNUNET_TESTING_daemon_get(pg, i);
1435 if (GNUNET_YES == GNUNET_TESTING_daemon_running(temp_daemon))
1437 peer_count = GNUNET_malloc (sizeof(struct PeerCount));
1438 memcpy(&peer_count->peer_id, &temp_daemon->id, sizeof(struct GNUNET_PeerIdentity));
1439 GNUNET_assert(peer_count->count == 0);
1440 peer_count->heap_node = GNUNET_CONTAINER_heap_insert(find_peer_context->peer_min_heap, peer_count, peer_count->count);
1441 GNUNET_CONTAINER_multihashmap_put(find_peer_context->peer_hash, &temp_daemon->id.hashPubKey, peer_count, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
1445 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Added %d peers to heap, total size %d\n", count_added, GNUNET_CONTAINER_heap_get_size(find_peer_context->peer_min_heap));
1446 GNUNET_SCHEDULER_add_delayed(sched, DEFAULT_PEER_DISCONNECT_TIMEOUT, &schedule_churn_get_topology, find_peer_context);
1447 //GNUNET_TESTING_get_topology (pg, &count_peers_churn_cb, find_peer_context);
1451 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Only churned off peers, no find peer requests, scheduling more gets (after allowing time for peers to disconnect properly!)...\n");
1452 if (dhtlog_handle != NULL)
1454 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
1455 topo_ctx->cont = &do_get;
1456 topo_ctx->cls = all_gets;
1457 topo_ctx->timeout = DEFAULT_GET_TIMEOUT;
1458 topo_ctx->peers_seen = GNUNET_CONTAINER_multihashmap_create(num_peers);
1459 calc_timeout = GNUNET_TIME_relative_add(DEFAULT_GET_TIMEOUT, all_get_timeout);
1460 calc_timeout = GNUNET_TIME_relative_add(calc_timeout, DEFAULT_TOPOLOGY_CAPTURE_TIMEOUT);
1461 calc_timeout = GNUNET_TIME_relative_add(calc_timeout, DEFAULT_PEER_DISCONNECT_TIMEOUT);
1462 die_task = GNUNET_SCHEDULER_add_delayed (sched, calc_timeout,
1463 &end_badly, "from do gets (churn_complete)");
1464 GNUNET_SCHEDULER_add_delayed(sched, DEFAULT_PEER_DISCONNECT_TIMEOUT, &capture_current_topology, topo_ctx);
1468 calc_timeout = GNUNET_TIME_relative_add(DEFAULT_GET_TIMEOUT, all_get_timeout);
1469 calc_timeout = GNUNET_TIME_relative_add(calc_timeout, DEFAULT_PEER_DISCONNECT_TIMEOUT);
1470 die_task = GNUNET_SCHEDULER_add_delayed (sched, calc_timeout,
1471 &end_badly, "from do gets (churn_complete)");
1472 if (dhtlog_handle != NULL)
1473 dhtlog_handle->insert_round(DHT_ROUND_GET, rounds_finished);
1474 GNUNET_SCHEDULER_add_delayed(sched, DEFAULT_PEER_DISCONNECT_TIMEOUT, &do_get, all_gets);
1480 * Decide how many peers to turn on or off in this round, make sure the
1481 * numbers actually make sense, then do so. This function sets in motion
1482 * churn, find peer requests for newly joined peers, and issuing get
1483 * requests once the new peers have done so.
1485 * @param cls closure (unused)
1486 * @param cls task context (unused)
1489 churn_peers (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1491 unsigned int count_running;
1492 unsigned int churn_up;
1493 unsigned int churn_down;
1494 struct GNUNET_TIME_Relative timeout;
1495 struct FindPeerContext *find_peer_context;
1497 churn_up = churn_down = 0;
1498 count_running = GNUNET_TESTING_daemons_running(pg);
1499 if (count_running > churn_array[current_churn_round])
1500 churn_down = count_running - churn_array[current_churn_round];
1501 else if (count_running < churn_array[current_churn_round])
1502 churn_up = churn_array[current_churn_round] - count_running;
1504 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Not churning any peers, topology unchanged.\n");
1506 if (churn_up > num_peers - count_running)
1508 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Churn file specified %u peers (up); only have %u!", churn_array[current_churn_round], num_peers);
1509 churn_up = num_peers - count_running;
1511 else if (churn_down > count_running)
1513 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Churn file specified %u peers (down); only have %u!", churn_array[current_churn_round], count_running);
1514 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "This will leave NO peers running (mistake in churn configuration?)!");
1515 churn_down = count_running;
1517 //timeout = GNUNET_TIME_relative_multiply(seconds_per_peer_start, churn_up > 0 ? churn_up : churn_down);
1518 //timeout = GNUNET_TIME_relative_multiply (seconds_per_peer_start, churn_up > 0 ? churn_up : churn_down);
1519 timeout = GNUNET_TIME_relative_multiply(DEFAULT_TIMEOUT, 2); /* FIXME: Lack of intelligent choice here */
1520 find_peer_context = NULL;
1521 if (churn_up > 0) /* Only need to do find peer requests if we turned new peers on */
1523 find_peer_context = GNUNET_malloc(sizeof(struct FindPeerContext));
1524 find_peer_context->count_peers_cb = &count_peers_churn_cb;
1525 find_peer_context->previous_peers = 0;
1526 find_peer_context->current_peers = 0;
1527 find_peer_context->endtime = GNUNET_TIME_relative_to_absolute(timeout);
1528 find_peer_context->peer_hash = GNUNET_CONTAINER_multihashmap_create(num_peers);
1529 find_peer_context->peer_min_heap = GNUNET_CONTAINER_heap_create(GNUNET_CONTAINER_HEAP_ORDER_MIN);
1531 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "churn_peers: want %u total, %u running, starting %u, stopping %u\n",
1532 churn_array[current_churn_round], count_running, churn_up, churn_down);
1533 GNUNET_TESTING_daemons_churn (pg, churn_down, churn_up, timeout, &churn_complete, find_peer_context);
1534 current_churn_round++;
1538 * Task to release DHT handle associated with GET request.
1541 get_stop_finished (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1543 struct TestGetContext *test_get = cls;
1544 struct TopologyIteratorContext *topo_ctx;
1546 /* The dht_handle may be null if this get was scheduled from a down peer */
1547 if (test_get->dht_handle != NULL)
1549 GNUNET_DHT_disconnect(test_get->dht_handle);
1550 outstanding_gets--; /* GET is really finished */
1551 test_get->dht_handle = NULL;
1554 /* Reset the uid (which item to search for) and the daemon (which peer to search from) for later get request iterations */
1555 if (get_from_same == GNUNET_NO)
1557 test_get->uid = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_puts);
1558 test_get->daemon = GNUNET_TESTING_daemon_get(pg, GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers));
1562 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "%d gets succeeded, %d gets failed!\n", gets_completed, gets_failed);
1564 update_meter(get_meter);
1565 if ((gets_completed + gets_failed == num_gets) && (outstanding_gets == 0))
1567 fprintf(stderr, "Canceling die task (get_stop_finished) %llu gets completed, %llu gets failed\n", gets_completed, gets_failed);
1568 GNUNET_SCHEDULER_cancel(sched, die_task);
1569 reset_meter(put_meter);
1570 reset_meter(get_meter);
1573 * 1) Testing is completely finished, call the topology iteration dealy and die
1574 * 2) Testing is not finished, churn the network and do gets again (current_churn_round < churn_rounds)
1575 * 3) Testing is not finished, reschedule all the PUTS *and* GETS again (num_rounds > 1)
1577 if (rounds_finished == total_rounds - 1) /* Everything is finished, end testing */
1579 if (dhtlog_handle != NULL)
1581 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
1582 topo_ctx->cont = &log_dht_statistics;
1583 topo_ctx->peers_seen = GNUNET_CONTAINER_multihashmap_create(num_peers);
1584 GNUNET_SCHEDULER_add_now(sched, &capture_current_topology, topo_ctx);
1587 GNUNET_SCHEDULER_add_now (sched, &finish_testing, NULL);
1589 else if (current_churn_round < churns_per_round * (rounds_finished + 1)) /* Do next round of churn */
1591 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Current churn round %u, real round %u, scheduling next round of churn.\n", current_churn_round, rounds_finished + 1);
1595 if (dhtlog_handle != NULL)
1596 dhtlog_handle->insert_round(DHT_ROUND_CHURN, rounds_finished);
1598 GNUNET_SCHEDULER_add_now(sched, &churn_peers, NULL);
1600 else if (rounds_finished < total_rounds - 1) /* Start a new complete round */
1605 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Round %u of %llu finished, scheduling next round.\n", rounds_finished, total_rounds);
1607 /** We reset the peer daemon for puts and gets on each disconnect, so all we need to do is start another round! */
1608 if (GNUNET_YES == in_dht_replication) /* Replication done in DHT, don't redo puts! */
1610 if (dhtlog_handle != NULL)
1611 dhtlog_handle->insert_round(DHT_ROUND_GET, rounds_finished);
1613 die_task = GNUNET_SCHEDULER_add_delayed (sched, GNUNET_TIME_relative_add(GNUNET_TIME_relative_add(GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, round_delay), all_get_timeout), DEFAULT_TOPOLOGY_CAPTURE_TIMEOUT),
1614 &end_badly, "from do gets (next round)");
1615 GNUNET_SCHEDULER_add_delayed(sched, GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, round_delay), &do_get, all_gets);
1619 if (dhtlog_handle != NULL)
1620 dhtlog_handle->insert_round(DHT_ROUND_NORMAL, rounds_finished);
1621 die_task = GNUNET_SCHEDULER_add_delayed (sched, GNUNET_TIME_relative_add(GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, round_delay), GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, num_puts * 2)),
1622 &end_badly, "from do puts");
1623 GNUNET_SCHEDULER_add_delayed(sched, GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, round_delay), &do_put, all_puts);
1630 * Task to release get handle.
1633 get_stop_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1635 struct TestGetContext *test_get = cls;
1637 if (tc->reason == GNUNET_SCHEDULER_REASON_TIMEOUT)
1639 GNUNET_assert(test_get->get_handle != NULL);
1640 GNUNET_DHT_get_stop(test_get->get_handle);
1641 test_get->get_handle = NULL;
1642 test_get->disconnect_task = GNUNET_SCHEDULER_NO_TASK;
1643 GNUNET_SCHEDULER_add_now (sched, &get_stop_finished, test_get);
1647 * Iterator called if the GET request initiated returns a response.
1649 * @param cls closure
1650 * @param exp when will this value expire
1651 * @param key key of the result
1652 * @param get_path NULL-terminated array of pointers
1653 * to the peers on reverse GET path (or NULL if not recorded)
1654 * @param put_path NULL-terminated array of pointers
1655 * to the peers on the PUT path (or NULL if not recorded)
1656 * @param type type of the result
1657 * @param size number of bytes in data
1658 * @param data pointer to the result data
1661 get_result_iterator (void *cls,
1662 struct GNUNET_TIME_Absolute exp,
1663 const GNUNET_HashCode * key,
1664 const struct GNUNET_PeerIdentity * const *get_path,
1665 const struct GNUNET_PeerIdentity * const *put_path,
1666 enum GNUNET_BLOCK_Type type,
1670 struct TestGetContext *test_get = cls;
1672 if (test_get->succeeded == GNUNET_YES)
1673 return; /* Get has already been successful, probably ending now */
1675 if (0 != memcmp(&known_keys[test_get->uid], key, sizeof (GNUNET_HashCode))) /* || (0 != memcmp(original_data, data, sizeof(original_data))))*/
1678 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Key or data is not the same as was inserted!\n");
1683 test_get->succeeded = GNUNET_YES;
1686 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Received correct GET response!\n");
1688 GNUNET_SCHEDULER_cancel(sched, test_get->disconnect_task);
1689 GNUNET_SCHEDULER_add_continuation(sched, &get_stop_task, test_get, GNUNET_SCHEDULER_REASON_PREREQ_DONE);
1695 * Set up some data, and call API PUT function
1698 do_get (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1700 struct TestGetContext *test_get = cls;
1704 GNUNET_SCHEDULER_cancel(sched, die_task);
1705 GNUNET_SCHEDULER_add_now(sched, &finish_testing, NULL);
1708 if (test_get == NULL)
1709 return; /* End of the list */
1711 /* Set this here in case we are re-running gets */
1712 test_get->succeeded = GNUNET_NO;
1714 if (GNUNET_YES != GNUNET_TESTING_daemon_running(test_get->daemon)) /* If the peer has been churned off, don't try issuing request from it! */
1716 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Peer we should issue get request from is down, skipping.\n");
1718 GNUNET_SCHEDULER_add_now (sched, &get_stop_finished, test_get);
1719 GNUNET_SCHEDULER_add_now (sched, &do_get, test_get->next);
1723 /* Check if more gets are outstanding than should be */
1724 if (outstanding_gets > max_outstanding_gets)
1726 GNUNET_SCHEDULER_add_delayed (sched, GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MILLISECONDS, 200), &do_get, test_get);
1730 /* Connect to the first peer's DHT */
1731 test_get->dht_handle = GNUNET_DHT_connect(sched, test_get->daemon->cfg, 10);
1732 GNUNET_assert(test_get->dht_handle != NULL);
1735 /* Insert the data at the first peer */
1736 test_get->get_handle = GNUNET_DHT_get_start(test_get->dht_handle,
1738 GNUNET_BLOCK_TYPE_TEST,
1739 &known_keys[test_get->uid],
1743 &get_result_iterator,
1747 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Starting get for uid %u from peer %s\n",
1749 test_get->daemon->shortname);
1751 test_get->disconnect_task = GNUNET_SCHEDULER_add_delayed(sched, get_timeout, &get_stop_task, test_get);
1753 /* Schedule the next request in the linked list of get requests */
1754 GNUNET_SCHEDULER_add_now (sched, &do_get, test_get->next);
1758 * Called when the PUT request has been transmitted to the DHT service.
1759 * Schedule the GET request for some time in the future.
1762 put_finished (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1764 struct TestPutContext *test_put = cls;
1765 struct TopologyIteratorContext *topo_ctx;
1769 if (tc->reason == GNUNET_SCHEDULER_REASON_TIMEOUT)
1770 fprintf(stderr, "PUT Request failed!\n");
1772 /* Reset the daemon (which peer to insert at) for later put request iterations */
1773 if (replicate_same == GNUNET_NO)
1774 test_put->daemon = GNUNET_TESTING_daemon_get(pg, GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers));
1776 GNUNET_SCHEDULER_cancel(sched, test_put->disconnect_task);
1777 test_put->disconnect_task = GNUNET_SCHEDULER_add_now(sched, &put_disconnect_task, test_put);
1778 if (GNUNET_YES == update_meter(put_meter))
1780 GNUNET_assert(outstanding_puts == 0);
1781 GNUNET_SCHEDULER_cancel (sched, die_task);
1782 if (dhtlog_handle != NULL)
1784 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
1785 topo_ctx->cont = &do_get;
1786 topo_ctx->cls = all_gets;
1787 topo_ctx->timeout = DEFAULT_GET_TIMEOUT;
1788 topo_ctx->peers_seen = GNUNET_CONTAINER_multihashmap_create(num_peers);
1789 die_task = GNUNET_SCHEDULER_add_delayed (sched, GNUNET_TIME_relative_add(GNUNET_TIME_relative_add(DEFAULT_GET_TIMEOUT, all_get_timeout), DEFAULT_TOPOLOGY_CAPTURE_TIMEOUT),
1790 &end_badly, "from do gets (put finished)");
1791 GNUNET_SCHEDULER_add_now(sched, &capture_current_topology, topo_ctx);
1795 fprintf(stderr, "Scheduling die task (put finished)\n");
1796 die_task = GNUNET_SCHEDULER_add_delayed (sched, GNUNET_TIME_relative_add(DEFAULT_GET_TIMEOUT, all_get_timeout),
1797 &end_badly, "from do gets (put finished)");
1798 GNUNET_SCHEDULER_add_delayed(sched, DEFAULT_GET_TIMEOUT, &do_get, all_gets);
1805 * Set up some data, and call API PUT function
1808 do_put (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1810 struct TestPutContext *test_put = cls;
1811 char data[test_data_size]; /* Made up data to store */
1815 if (test_put == NULL)
1816 return; /* End of list */
1818 if (GNUNET_YES != GNUNET_TESTING_daemon_running(test_put->daemon)) /* If the peer has been churned off, don't try issuing request from it! */
1820 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Peer we should issue put request at is down, skipping.\n");
1821 update_meter(put_meter);
1822 GNUNET_SCHEDULER_add_now (sched, &do_put, test_put->next);
1826 for (i = 0; i < sizeof(data); i++)
1828 memset(&data[i], GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, UINT32_MAX), 1);
1831 if (outstanding_puts > max_outstanding_puts)
1833 GNUNET_SCHEDULER_add_delayed (sched, GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MILLISECONDS, 200), &do_put, test_put);
1838 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Starting put for uid %u from peer %s\n",
1840 test_put->daemon->shortname);
1842 test_put->dht_handle = GNUNET_DHT_connect(sched, test_put->daemon->cfg, 10);
1844 GNUNET_assert(test_put->dht_handle != NULL);
1846 GNUNET_DHT_put(test_put->dht_handle,
1847 &known_keys[test_put->uid],
1849 GNUNET_BLOCK_TYPE_TEST,
1851 GNUNET_TIME_UNIT_FOREVER_ABS,
1853 &put_finished, test_put);
1854 test_put->disconnect_task = GNUNET_SCHEDULER_add_delayed(sched, GNUNET_TIME_relative_get_forever(), &put_disconnect_task, test_put);
1855 rand = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, 2);
1856 GNUNET_SCHEDULER_add_delayed(sched, GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, rand), &do_put, test_put->next);
1860 schedule_find_peer_requests (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc);
1863 * Given a number of total peers and a bucket size, estimate the number of
1864 * connections in a perfect kademlia topology.
1866 static unsigned int connection_estimate(unsigned int peer_count, unsigned int bucket_size)
1869 unsigned int filled;
1873 while (i >= bucket_size)
1878 filled++; /* Add one filled bucket to account for one "half full" and some miscellaneous */
1879 return filled * bucket_size * peer_count;
1885 * Callback for iterating over all the peer connections of a peer group.
1888 count_peers_cb (void *cls,
1889 const struct GNUNET_PeerIdentity *first,
1890 const struct GNUNET_PeerIdentity *second,
1891 struct GNUNET_TIME_Relative latency,
1895 struct FindPeerContext *find_peer_context = cls;
1896 if ((first != NULL) && (second != NULL))
1898 add_new_connection(find_peer_context, first, second);
1899 find_peer_context->current_peers++;
1903 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Peer count finished (%u connections), %u new peers, connection estimate %u (double %u)\n",
1904 find_peer_context->current_peers,
1905 find_peer_context->current_peers - find_peer_context->previous_peers,
1906 connection_estimate(num_peers, DEFAULT_BUCKET_SIZE),
1907 2 * connection_estimate(num_peers, DEFAULT_BUCKET_SIZE));
1909 if ((find_peer_context->last_sent > 8) &&
1910 (find_peer_context->current_peers - find_peer_context->previous_peers > FIND_PEER_THRESHOLD) &&
1911 (find_peer_context->current_peers < 2 * connection_estimate(num_peers, DEFAULT_BUCKET_SIZE)) &&
1912 (GNUNET_TIME_absolute_get_remaining(find_peer_context->endtime).rel_value > 0))
1914 GNUNET_SCHEDULER_add_now(sched, &schedule_find_peer_requests, find_peer_context);
1918 GNUNET_CONTAINER_multihashmap_iterate(find_peer_context->peer_hash, &remove_peer_count, find_peer_context);
1919 GNUNET_CONTAINER_multihashmap_destroy(find_peer_context->peer_hash);
1920 GNUNET_CONTAINER_heap_destroy(find_peer_context->peer_min_heap);
1921 GNUNET_free(find_peer_context);
1922 fprintf(stderr, "Not sending any more find peer requests.\n");
1929 * Set up a single find peer request for each peer in the topology. Do this
1930 * until the settle time is over, limited by the number of outstanding requests
1931 * and the time allowed for each one!
1934 schedule_find_peer_requests (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1936 struct FindPeerContext *find_peer_ctx = cls;
1937 struct TestFindPeer *test_find_peer;
1938 struct PeerCount *peer_count;
1942 if (find_peer_ctx->previous_peers == 0) /* First time, go slowly */
1943 find_peer_ctx->total = 1;
1944 else if (find_peer_ctx->current_peers - find_peer_ctx->previous_peers > MAX_FIND_PEER_CUTOFF) /* Found LOTS of peers, still go slowly */
1945 find_peer_ctx->total = find_peer_ctx->last_sent - (find_peer_ctx->last_sent / 8);
1947 else if (find_peer_ctx->current_peers - find_peer_ctx->previous_peers < MIN_FIND_PEER_CUTOFF)
1948 find_peer_ctx->total = find_peer_ctx->last_sent * 2; /* FIXME: always multiply by two (unless above max?) */
1950 find_peer_ctx->total = find_peer_ctx->last_sent;
1953 find_peer_ctx->total = find_peer_ctx->last_sent * 2;
1956 if (find_peer_ctx->total > max_outstanding_find_peers)
1957 find_peer_ctx->total = max_outstanding_find_peers;
1959 find_peer_ctx->last_sent = find_peer_ctx->total;
1960 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Sending %u find peer messages (goal at least %u connections)\n", find_peer_ctx->total, connection_estimate(num_peers, DEFAULT_BUCKET_SIZE));
1962 find_peer_offset = GNUNET_TIME_relative_divide(find_peer_delay, find_peer_ctx->total);
1963 for (i = 0; i < find_peer_ctx->total; i++)
1965 test_find_peer = GNUNET_malloc(sizeof(struct TestFindPeer));
1966 if (find_peer_ctx->previous_peers == 0) /* If we haven't sent any requests, yet choose random peers */
1969 * Attempt to spread find peer requests across even sections of the peer address
1970 * space. Choose basically 1 peer in every num_peers / max_outstanding_requests
1971 * each time, then offset it by a randomish value.
1973 * For instance, if num_peers is 100 and max_outstanding is 10, first chosen peer
1974 * will be between 0 - 10, second between 10 - 20, etc.
1976 random = (num_peers / find_peer_ctx->total) * i;
1977 random = random + GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, (num_peers / find_peer_ctx->total));
1978 if (random >= num_peers)
1980 random = random - num_peers;
1983 random = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers);
1985 test_find_peer->daemon = GNUNET_TESTING_daemon_get(pg, random);
1987 else /* If we have sent requests, choose peers with a low number of connections to send requests from */
1989 peer_count = GNUNET_CONTAINER_heap_remove_root(find_peer_ctx->peer_min_heap);
1990 GNUNET_CONTAINER_multihashmap_remove(find_peer_ctx->peer_hash, &peer_count->peer_id.hashPubKey, peer_count);
1991 test_find_peer->daemon = GNUNET_TESTING_daemon_get_by_id(pg, &peer_count->peer_id);
1992 GNUNET_assert(test_find_peer->daemon != NULL);
1995 test_find_peer->find_peer_context = find_peer_ctx;
1996 GNUNET_SCHEDULER_add_delayed(sched, GNUNET_TIME_relative_multiply(find_peer_offset, i), &send_find_peer_request, test_find_peer);
1999 if ((find_peer_ctx->peer_hash == NULL) && (find_peer_ctx->peer_min_heap == NULL))
2001 find_peer_ctx->peer_hash = GNUNET_CONTAINER_multihashmap_create(num_peers);
2002 find_peer_ctx->peer_min_heap = GNUNET_CONTAINER_heap_create(GNUNET_CONTAINER_HEAP_ORDER_MIN);
2006 GNUNET_CONTAINER_multihashmap_iterate(find_peer_ctx->peer_hash, &remove_peer_count, find_peer_ctx);
2007 GNUNET_CONTAINER_multihashmap_destroy(find_peer_ctx->peer_hash);
2008 find_peer_ctx->peer_hash = GNUNET_CONTAINER_multihashmap_create(num_peers);
2011 GNUNET_assert(0 == GNUNET_CONTAINER_multihashmap_size(find_peer_ctx->peer_hash));
2012 GNUNET_assert(0 == GNUNET_CONTAINER_heap_get_size(find_peer_ctx->peer_min_heap));
2017 * Set up some all of the put and get operations we want
2018 * to do. Allocate data structure for each, add to list,
2019 * then call actual insert functions.
2022 setup_puts_and_gets (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
2025 uint32_t temp_daemon;
2026 struct TestPutContext *test_put;
2027 struct TestGetContext *test_get;
2029 int remember[num_puts][num_peers];
2030 memset(&remember, 0, sizeof(int) * num_puts * num_peers);
2032 known_keys = GNUNET_malloc(sizeof(GNUNET_HashCode) * num_puts);
2033 for (i = 0; i < num_puts; i++)
2035 test_put = GNUNET_malloc(sizeof(struct TestPutContext));
2037 GNUNET_CRYPTO_hash_create_random (GNUNET_CRYPTO_QUALITY_WEAK, &known_keys[i]);
2038 temp_daemon = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers);
2039 test_put->daemon = GNUNET_TESTING_daemon_get(pg, temp_daemon);
2040 test_put->next = all_puts;
2041 all_puts = test_put;
2044 for (i = 0; i < num_gets; i++)
2046 test_get = GNUNET_malloc(sizeof(struct TestGetContext));
2047 test_get->uid = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_puts);
2049 while (remember[test_get->uid][temp_daemon] == 1)
2050 temp_daemon = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers);
2051 remember[test_get->uid][temp_daemon] = 1;
2053 test_get->daemon = GNUNET_TESTING_daemon_get(pg, GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers));
2054 test_get->next = all_gets;
2055 all_gets = test_get;
2058 /*GNUNET_SCHEDULER_cancel (sched, die_task);*/
2059 die_task = GNUNET_SCHEDULER_add_delayed (sched, GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, num_puts * 2),
2060 &end_badly, "from do puts");
2061 GNUNET_SCHEDULER_add_now (sched, &do_put, all_puts);
2066 * Set up some all of the put and get operations we want
2067 * to do. Allocate data structure for each, add to list,
2068 * then call actual insert functions.
2071 continue_puts_and_gets (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
2075 struct TopologyIteratorContext *topo_ctx;
2076 struct FindPeerContext *find_peer_context;
2077 if (dhtlog_handle != NULL)
2079 if (settle_time >= 180 * 2)
2080 max = (settle_time / 180) - 2;
2083 for (i = 1; i < max; i++)
2085 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
2086 topo_ctx->current_iteration = i;
2087 topo_ctx->total_iterations = max;
2088 topo_ctx->peers_seen = GNUNET_CONTAINER_multihashmap_create(num_peers);
2089 //fprintf(stderr, "scheduled topology iteration in %d minutes\n", i);
2090 GNUNET_SCHEDULER_add_delayed(sched, GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MINUTES, i * 3), &capture_current_topology, topo_ctx);
2092 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
2093 topo_ctx->cont = &setup_puts_and_gets;
2094 topo_ctx->peers_seen = GNUNET_CONTAINER_multihashmap_create(num_peers);
2095 GNUNET_SCHEDULER_add_delayed(sched, GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, (settle_time + 90)), &capture_current_topology, topo_ctx);
2098 GNUNET_SCHEDULER_add_delayed(sched, GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, (settle_time + 90)), &setup_puts_and_gets, NULL);
2100 if (dhtlog_handle != NULL)
2101 dhtlog_handle->insert_round(DHT_ROUND_NORMAL, rounds_finished);
2103 if (GNUNET_YES == do_find_peer)
2105 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Scheduling find peer requests during \"settle\" time.\n");
2106 find_peer_context = GNUNET_malloc(sizeof(struct FindPeerContext));
2107 find_peer_context->count_peers_cb = &count_peers_cb;
2108 find_peer_context->endtime = GNUNET_TIME_relative_to_absolute(GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, settle_time));
2109 GNUNET_SCHEDULER_add_now(sched, &schedule_find_peer_requests, find_peer_context);
2113 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Assuming automatic DHT find peer requests.\n");
2118 * Task to release DHT handles
2121 malicious_disconnect_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
2123 struct MaliciousContext *ctx = cls;
2124 outstanding_malicious--;
2125 malicious_completed++;
2126 ctx->disconnect_task = GNUNET_SCHEDULER_NO_TASK;
2127 GNUNET_DHT_disconnect(ctx->dht_handle);
2128 ctx->dht_handle = NULL;
2131 if (malicious_completed == malicious_getters + malicious_putters + malicious_droppers)
2133 GNUNET_SCHEDULER_cancel(sched, die_task);
2134 fprintf(stderr, "Finished setting all malicious peers up, calling continuation!\n");
2135 if (dhtlog_handle != NULL)
2136 GNUNET_SCHEDULER_add_now (sched,
2137 &continue_puts_and_gets, NULL);
2139 GNUNET_SCHEDULER_add_delayed (sched,
2140 GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, settle_time),
2141 &continue_puts_and_gets, NULL);
2147 * Task to release DHT handles
2150 malicious_done_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
2152 struct MaliciousContext *ctx = cls;
2153 GNUNET_SCHEDULER_cancel(sched, ctx->disconnect_task);
2154 GNUNET_SCHEDULER_add_now(sched, &malicious_disconnect_task, ctx);
2158 * Set up some data, and call API PUT function
2161 set_malicious (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
2163 struct MaliciousContext *ctx = cls;
2165 if (outstanding_malicious > DEFAULT_MAX_OUTSTANDING_GETS)
2167 GNUNET_SCHEDULER_add_delayed (sched, GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MILLISECONDS, 100), &set_malicious, ctx);
2171 if (ctx->dht_handle == NULL)
2173 ctx->dht_handle = GNUNET_DHT_connect(sched, ctx->daemon->cfg, 1);
2174 outstanding_malicious++;
2177 GNUNET_assert(ctx->dht_handle != NULL);
2181 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Setting peer %s malicious type %d\n",
2182 ctx->daemon->shortname, ctx->malicious_type);
2185 switch (ctx->malicious_type)
2187 case GNUNET_MESSAGE_TYPE_DHT_MALICIOUS_GET:
2188 GNUNET_DHT_set_malicious_getter(ctx->dht_handle, malicious_get_frequency);
2189 GNUNET_SCHEDULER_add_now (sched,
2190 &malicious_done_task, ctx);
2192 case GNUNET_MESSAGE_TYPE_DHT_MALICIOUS_PUT:
2193 GNUNET_DHT_set_malicious_putter(ctx->dht_handle, malicious_put_frequency);
2194 GNUNET_SCHEDULER_add_now (sched,
2195 &malicious_done_task, ctx);
2197 case GNUNET_MESSAGE_TYPE_DHT_MALICIOUS_DROP:
2198 GNUNET_DHT_set_malicious_dropper(ctx->dht_handle);
2199 GNUNET_SCHEDULER_add_now (sched, &malicious_done_task, ctx);
2205 ctx->disconnect_task = GNUNET_SCHEDULER_add_delayed(sched,
2206 GNUNET_TIME_UNIT_FOREVER_REL,
2207 &malicious_disconnect_task, ctx);
2211 * Select randomly from set of known peers,
2212 * set the desired number of peers to the
2213 * proper malicious types.
2216 setup_malicious_peers (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
2218 struct MaliciousContext *ctx;
2220 uint32_t temp_daemon;
2222 for (i = 0; i < malicious_getters; i++)
2224 ctx = GNUNET_malloc(sizeof(struct MaliciousContext));
2225 temp_daemon = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers);
2226 ctx->daemon = GNUNET_TESTING_daemon_get(pg, temp_daemon);
2227 ctx->malicious_type = GNUNET_MESSAGE_TYPE_DHT_MALICIOUS_GET;
2228 GNUNET_SCHEDULER_add_now (sched, &set_malicious, ctx);
2232 for (i = 0; i < malicious_putters; i++)
2234 ctx = GNUNET_malloc(sizeof(struct MaliciousContext));
2235 temp_daemon = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers);
2236 ctx->daemon = GNUNET_TESTING_daemon_get(pg, temp_daemon);
2237 ctx->malicious_type = GNUNET_MESSAGE_TYPE_DHT_MALICIOUS_PUT;
2238 GNUNET_SCHEDULER_add_now (sched, &set_malicious, ctx);
2242 for (i = 0; i < malicious_droppers; i++)
2244 ctx = GNUNET_malloc(sizeof(struct MaliciousContext));
2245 temp_daemon = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers);
2246 ctx->daemon = GNUNET_TESTING_daemon_get(pg, temp_daemon);
2247 ctx->malicious_type = GNUNET_MESSAGE_TYPE_DHT_MALICIOUS_DROP;
2248 GNUNET_SCHEDULER_add_now (sched, &set_malicious, ctx);
2252 * If we have any malicious peers to set up,
2253 * the malicious callback should call continue_gets_and_puts
2255 if (malicious_getters + malicious_putters + malicious_droppers > 0)
2257 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Giving malicious set tasks some time before starting testing!\n");
2258 die_task = GNUNET_SCHEDULER_add_delayed (sched, GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, (malicious_getters + malicious_putters + malicious_droppers) * 2),
2259 &end_badly, "from set malicious");
2261 else /* Otherwise, continue testing */
2263 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Scheduling continue_puts_and_gets now!\n");
2264 GNUNET_SCHEDULER_add_now (sched,
2265 &continue_puts_and_gets, NULL);
2270 * This function is called whenever a connection attempt is finished between two of
2271 * the started peers (started with GNUNET_TESTING_daemons_start). The total
2272 * number of times this function is called should equal the number returned
2273 * from the GNUNET_TESTING_connect_topology call.
2275 * The emsg variable is NULL on success (peers connected), and non-NULL on
2276 * failure (peers failed to connect).
2279 topology_callback (void *cls,
2280 const struct GNUNET_PeerIdentity *first,
2281 const struct GNUNET_PeerIdentity *second,
2283 const struct GNUNET_CONFIGURATION_Handle *first_cfg,
2284 const struct GNUNET_CONFIGURATION_Handle *second_cfg,
2285 struct GNUNET_TESTING_Daemon *first_daemon,
2286 struct GNUNET_TESTING_Daemon *second_daemon,
2289 struct TopologyIteratorContext *topo_ctx;
2292 total_connections++;
2294 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "connected peer %s to peer %s, distance %u\n",
2295 first_daemon->shortname,
2296 second_daemon->shortname,
2302 failed_connections++;
2304 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Failed to connect peer %s to peer %s with error :\n%s\n",
2305 first_daemon->shortname,
2306 second_daemon->shortname, emsg);
2310 GNUNET_assert(peer_connect_meter != NULL);
2311 if (GNUNET_YES == update_meter(peer_connect_meter))
2314 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2315 "Created %d total connections, which is our target number! Starting next phase of testing.\n",
2318 if (dhtlog_handle != NULL)
2320 dhtlog_handle->update_connections (trialuid, total_connections);
2321 dhtlog_handle->insert_topology(expected_connections);
2324 GNUNET_SCHEDULER_cancel (sched, die_task);
2325 /*die_task = GNUNET_SCHEDULER_add_delayed (sched, DEFAULT_TIMEOUT,
2326 &end_badly, "from setup puts/gets");*/
2327 if ((dhtlog_handle != NULL) && (settle_time > 0))
2329 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
2330 topo_ctx->cont = &setup_malicious_peers;
2331 topo_ctx->peers_seen = GNUNET_CONTAINER_multihashmap_create(num_peers);
2332 //topo_ctx->cont = &continue_puts_and_gets;
2333 GNUNET_SCHEDULER_add_now(sched, &capture_current_topology, topo_ctx);
2337 GNUNET_SCHEDULER_add_now(sched, &setup_malicious_peers, NULL);
2338 /*GNUNET_SCHEDULER_add_delayed (sched,
2339 GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, settle_time),
2340 &continue_puts_and_gets, NULL);*/
2343 else if (total_connections + failed_connections == expected_connections)
2345 GNUNET_SCHEDULER_cancel (sched, die_task);
2346 die_task = GNUNET_SCHEDULER_add_now (sched,
2347 &end_badly, "from topology_callback (too many failed connections)");
2352 peers_started_callback (void *cls,
2353 const struct GNUNET_PeerIdentity *id,
2354 const struct GNUNET_CONFIGURATION_Handle *cfg,
2355 struct GNUNET_TESTING_Daemon *d, const char *emsg)
2359 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Failed to start daemon with error: `%s'\n",
2363 GNUNET_assert (id != NULL);
2366 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Started daemon %llu out of %llu\n",
2367 (num_peers - peers_left) + 1, num_peers);
2372 if (GNUNET_YES == update_meter(peer_start_meter))
2375 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2376 "All %d daemons started, now connecting peers!\n",
2379 GNUNET_SCHEDULER_cancel (sched, die_task);
2381 expected_connections = UINT_MAX;
2382 if ((pg != NULL) && (peers_left == 0))
2384 expected_connections = GNUNET_TESTING_connect_topology (pg, connect_topology, connect_topology_option, connect_topology_option_modifier, NULL, NULL);
2386 peer_connect_meter = create_meter(expected_connections, "Peer connection ", GNUNET_YES);
2387 fprintf(stderr, "Have %d expected connections\n", expected_connections);
2390 if (expected_connections == GNUNET_SYSERR)
2392 die_task = GNUNET_SCHEDULER_add_now (sched,
2393 &end_badly, "from connect topology (bad return)");
2396 die_task = GNUNET_SCHEDULER_add_delayed (sched,
2397 GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, DEFAULT_CONNECT_TIMEOUT * expected_connections),
2398 &end_badly, "from connect topology (timeout)");
2407 peers_left = num_peers; /* Reset counter */
2408 if (GNUNET_TESTING_create_topology (pg, topology, blacklist_topology, blacklist_transports) != GNUNET_SYSERR)
2411 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2412 "Topology set up, now starting peers!\n");
2414 GNUNET_TESTING_daemons_continue_startup(pg);
2418 GNUNET_SCHEDULER_cancel (sched, die_task);
2419 die_task = GNUNET_SCHEDULER_add_now (sched,
2420 &end_badly, "from create topology (bad return)");
2422 GNUNET_free_non_null(blacklist_transports);
2423 GNUNET_SCHEDULER_cancel (sched, die_task);
2424 die_task = GNUNET_SCHEDULER_add_delayed (sched,
2425 GNUNET_TIME_relative_multiply(seconds_per_peer_start, num_peers),
2426 &end_badly, "from continue startup (timeout)");
2430 * Callback indicating that the hostkey was created for a peer.
2433 * @param id the peer identity
2434 * @param d the daemon handle (pretty useless at this point, remove?)
2435 * @param emsg non-null on failure
2438 hostkey_callback (void *cls,
2439 const struct GNUNET_PeerIdentity *id,
2440 struct GNUNET_TESTING_Daemon *d,
2445 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Hostkey callback received error: %s\n", emsg);
2449 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2450 "Hostkey (%d/%d) created for peer `%s'\n",
2451 num_peers - peers_left, num_peers, GNUNET_i2s(id));
2455 if (GNUNET_YES == update_meter(hostkey_meter))
2458 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2459 "All %d hostkeys created, now creating topology!\n",
2462 GNUNET_SCHEDULER_cancel (sched, die_task);
2463 /* Set up task in case topology creation doesn't finish
2464 * within a reasonable amount of time */
2465 die_task = GNUNET_SCHEDULER_add_delayed (sched,
2466 DEFAULT_TOPOLOGY_TIMEOUT,
2467 &end_badly, "from create_topology");
2468 GNUNET_SCHEDULER_add_now(sched, &create_topology, NULL);
2476 struct GNUNET_SCHEDULER_Handle *s,
2478 const char *cfgfile, const struct GNUNET_CONFIGURATION_Handle *cfg)
2481 struct GNUNET_DHTLOG_TrialInfo trial_info;
2482 struct GNUNET_TESTING_Host *hosts;
2483 struct GNUNET_TESTING_Host *temphost;
2484 struct GNUNET_TESTING_Host *tempnext;
2486 char *connect_topology_str;
2487 char *blacklist_topology_str;
2488 char *connect_topology_option_str;
2489 char *connect_topology_option_modifier_string;
2491 char *topology_percentage_str;
2492 float topology_percentage;
2493 char *topology_probability_str;
2495 float topology_probability;
2496 unsigned long long temp_config_number;
2499 int strict_kademlia;
2503 char *churn_filename;
2506 unsigned int line_number;
2510 rounds_finished = 0;
2511 memset(&trial_info, 0, sizeof(struct GNUNET_DHTLOG_TrialInfo));
2512 /* Get path from configuration file */
2513 if (GNUNET_YES != GNUNET_CONFIGURATION_get_value_string(cfg, "paths", "servicehome", &test_directory))
2520 * Get DHT specific testing options.
2522 if ((GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht_testing", "mysql_logging")) ||
2523 (GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht_testing", "mysql_logging_extended")))
2525 dhtlog_handle = GNUNET_DHTLOG_connect(cfg);
2526 if (dhtlog_handle == NULL)
2528 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2529 "Could not connect to mysql server for logging, will NOT log dht operations!");
2535 stop_closest = GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht", "stop_on_closest");
2536 if (stop_closest == GNUNET_SYSERR)
2537 stop_closest = GNUNET_NO;
2539 stop_found = GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht", "stop_found");
2540 if (stop_found == GNUNET_SYSERR)
2541 stop_found = GNUNET_NO;
2543 strict_kademlia = GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht", "strict_kademlia");
2544 if (strict_kademlia == GNUNET_SYSERR)
2545 strict_kademlia = GNUNET_NO;
2548 GNUNET_CONFIGURATION_get_value_string (cfg, "dht_testing", "comment",
2550 trialmessage = NULL;
2553 /** Check for a churn file to do churny simulation */
2555 GNUNET_CONFIGURATION_get_value_string(cfg, "dht_testing", "churn_file",
2558 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Reading churn data from %s\n", churn_filename);
2559 if (GNUNET_OK != GNUNET_DISK_file_test (churn_filename))
2561 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Error reading churn file!\n");
2564 if ((0 != STAT (churn_filename, &frstat)) || (frstat.st_size == 0))
2566 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
2567 "Could not open file specified for churn data, ending test!");
2569 GNUNET_free_non_null(trialmessage);
2570 GNUNET_free(churn_filename);
2574 churn_data = GNUNET_malloc_large (frstat.st_size);
2575 GNUNET_assert(churn_data != NULL);
2576 if (frstat.st_size !=
2577 GNUNET_DISK_fn_read (churn_filename, churn_data, frstat.st_size))
2579 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
2580 "Could not read file %s specified for churn, ending test!", churn_filename);
2581 GNUNET_free (churn_filename);
2582 GNUNET_free (churn_data);
2583 GNUNET_free_non_null(trialmessage);
2587 GNUNET_free_non_null(churn_filename);
2591 /* Read the first line */
2592 while (count < frstat.st_size)
2595 if (((churn_data[count] == '\n')) && (buf != &churn_data[count]))
2597 churn_data[count] = '\0';
2598 if (1 != sscanf(buf, "%u", &churn_rounds))
2600 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Failed to read number of rounds from %s, ending test!\n", churn_filename);
2601 GNUNET_free_non_null(trialmessage);
2602 GNUNET_free(churn_filename);
2606 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Read %u rounds from churn file\n", churn_rounds);
2607 buf = &churn_data[count + 1];
2608 churn_array = GNUNET_malloc(sizeof(unsigned int) * churn_rounds);
2609 break; /* Done with this part */
2613 if (GNUNET_OK != GNUNET_CONFIGURATION_get_value_number(cfg, "dht_testing", "churns_per_round", &churns_per_round))
2615 churns_per_round = (unsigned long long)churn_rounds;
2619 while ((count < frstat.st_size) && (line_number < churn_rounds))
2622 if (((churn_data[count] == '\n')) && (buf != &churn_data[count]))
2624 churn_data[count] = '\0';
2626 ret = sscanf(buf, "%u", &churn_array[line_number]);
2629 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Read %u peers in round %u\n", churn_array[line_number], line_number);
2634 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Error reading line `%s' in hostfile\n", buf);
2635 buf = &churn_data[count + 1];
2638 buf = &churn_data[count + 1];
2640 else if (churn_data[count] == '\n') /* Blank line */
2641 buf = &churn_data[count + 1];
2644 GNUNET_free_non_null(churn_data);
2646 /** Check for a hostfile containing user@host:port triples */
2648 GNUNET_CONFIGURATION_get_value_string (cfg, "testing", "hostfile",
2654 if (hostfile != NULL)
2656 if (GNUNET_OK != GNUNET_DISK_file_test (hostfile))
2657 GNUNET_DISK_fn_write (hostfile, NULL, 0, GNUNET_DISK_PERM_USER_READ
2658 | GNUNET_DISK_PERM_USER_WRITE);
2659 if ((0 != STAT (hostfile, &frstat)) || (frstat.st_size == 0))
2661 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
2662 "Could not open file specified for host list, ending test!");
2664 GNUNET_free_non_null(trialmessage);
2665 GNUNET_free(hostfile);
2669 data = GNUNET_malloc_large (frstat.st_size);
2670 GNUNET_assert(data != NULL);
2671 if (frstat.st_size !=
2672 GNUNET_DISK_fn_read (hostfile, data, frstat.st_size))
2674 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
2675 "Could not read file %s specified for host list, ending test!", hostfile);
2676 GNUNET_free (hostfile);
2678 GNUNET_free_non_null(trialmessage);
2682 GNUNET_free_non_null(hostfile);
2686 while (count < frstat.st_size)
2689 /* if (((data[count] == '\n') || (data[count] == '\0')) && (buf != &data[count]))*/
2690 if (((data[count] == '\n')) && (buf != &data[count]))
2693 temphost = GNUNET_malloc(sizeof(struct GNUNET_TESTING_Host));
2694 ret = sscanf(buf, "%a[a-zA-Z0-9]@%a[a-zA-Z0-9.]:%hd", &temphost->username, &temphost->hostname, &temphost->port);
2697 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Successfully read host %s, port %d and user %s from file\n", temphost->hostname, temphost->port, temphost->username);
2701 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Error reading line `%s' in hostfile\n", buf);
2702 GNUNET_free(temphost);
2703 buf = &data[count + 1];
2706 /* temphost->hostname = buf; */
2707 temphost->next = hosts;
2709 buf = &data[count + 1];
2711 else if ((data[count] == '\n') || (data[count] == '\0'))
2712 buf = &data[count + 1];
2717 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "malicious_getters",
2718 &malicious_getters))
2719 malicious_getters = 0;
2722 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "malicious_putters",
2723 &malicious_putters))
2724 malicious_putters = 0;
2727 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "malicious_droppers",
2728 &malicious_droppers))
2729 malicious_droppers = 0;
2732 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "settle_time",
2736 if (GNUNET_SYSERR ==
2737 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "num_puts",
2739 num_puts = num_peers;
2741 if (GNUNET_SYSERR ==
2742 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "num_gets",
2744 num_gets = num_peers;
2747 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "find_peer_delay",
2748 &temp_config_number))
2749 find_peer_delay = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_config_number);
2751 find_peer_delay = DEFAULT_FIND_PEER_DELAY;
2754 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "concurrent_find_peers",
2755 &temp_config_number))
2756 max_outstanding_find_peers = temp_config_number;
2758 max_outstanding_find_peers = DEFAULT_MAX_OUTSTANDING_FIND_PEERS;
2761 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "get_timeout",
2762 &temp_config_number))
2763 get_timeout = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_config_number);
2765 get_timeout = DEFAULT_GET_TIMEOUT;
2768 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "concurrent_puts",
2769 &temp_config_number))
2770 max_outstanding_puts = temp_config_number;
2772 max_outstanding_puts = DEFAULT_MAX_OUTSTANDING_PUTS;
2775 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "concurrent_gets",
2776 &temp_config_number))
2777 max_outstanding_gets = temp_config_number;
2779 max_outstanding_gets = DEFAULT_MAX_OUTSTANDING_GETS;
2782 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "timeout",
2783 &temp_config_number))
2784 all_get_timeout = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_config_number);
2786 all_get_timeout.rel_value = get_timeout.rel_value * num_gets;
2789 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "get_delay",
2790 &temp_config_number))
2791 get_delay = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_config_number);
2793 get_delay = DEFAULT_GET_DELAY;
2796 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "put_delay",
2797 &temp_config_number))
2798 put_delay = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_config_number);
2800 put_delay = DEFAULT_PUT_DELAY;
2803 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "peer_start_timeout",
2804 &temp_config_number))
2805 seconds_per_peer_start = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_config_number);
2807 seconds_per_peer_start = DEFAULT_SECONDS_PER_PEER_START;
2810 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "data_size",
2811 &temp_config_number))
2812 test_data_size = temp_config_number;
2814 test_data_size = DEFAULT_TEST_DATA_SIZE;
2817 * Get testing related options.
2819 if (GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno(cfg, "DHT_TESTING", "REPLICATE_SAME"))
2820 replicate_same = GNUNET_YES;
2823 * Get testing related options.
2825 if (GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno(cfg, "DHT_TESTING", "GET_FROM_SAME"))
2826 get_from_same = GNUNET_YES;
2829 if (GNUNET_NO == GNUNET_CONFIGURATION_get_value_time (cfg, "DHT_TESTING",
2830 "MALICIOUS_GET_FREQUENCY",
2831 &malicious_get_frequency))
2832 malicious_get_frequency = DEFAULT_MALICIOUS_GET_FREQUENCY;
2835 if (GNUNET_NO == GNUNET_CONFIGURATION_get_value_time (cfg, "DHT_TESTING",
2836 "MALICIOUS_PUT_FREQUENCY",
2837 &malicious_put_frequency))
2838 malicious_put_frequency = DEFAULT_MALICIOUS_PUT_FREQUENCY;
2841 /* The normal behavior of the DHT is to do find peer requests
2842 * on its own. Only if this is explicitly turned off should
2843 * the testing driver issue find peer requests (even though
2844 * this is likely the default when testing).
2847 GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht",
2850 do_find_peer = GNUNET_YES;
2854 GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht",
2857 in_dht_replication = GNUNET_YES;
2860 if (GNUNET_YES != GNUNET_CONFIGURATION_get_value_number (cfg, "DHT_TESTING",
2867 if (GNUNET_YES == GNUNET_CONFIGURATION_get_value_number (cfg, "DHT_TESTING",
2869 &temp_config_number))
2871 find_peer_delay = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_config_number);
2874 find_peer_delay = DEFAULT_FIND_PEER_DELAY;
2876 if (GNUNET_YES != GNUNET_CONFIGURATION_get_value_number(cfg, "DHT_TESTING", "ROUND_DELAY", &round_delay))
2879 if (GNUNET_NO == GNUNET_CONFIGURATION_get_value_number (cfg, "DHT_TESTING",
2880 "OUTSTANDING_FIND_PEERS",
2881 &max_outstanding_find_peers))
2882 max_outstanding_find_peers = DEFAULT_MAX_OUTSTANDING_FIND_PEERS;
2884 if (GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht", "strict_kademlia"))
2885 max_outstanding_find_peers = max_outstanding_find_peers * 1;
2887 find_peer_offset = GNUNET_TIME_relative_divide (find_peer_delay, max_outstanding_find_peers);
2889 if (GNUNET_SYSERR ==
2890 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "num_rounds",
2896 topology_str = NULL;
2898 GNUNET_CONFIGURATION_get_value_string(cfg, "testing", "topology",
2899 &topology_str)) && (GNUNET_NO == GNUNET_TESTING_topology_get(&topology, topology_str)))
2901 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2902 "Invalid topology `%s' given for section %s option %s\n", topology_str, "TESTING", "TOPOLOGY");
2903 topology = GNUNET_TESTING_TOPOLOGY_CLIQUE; /* Defaults to NONE, so set better default here */
2907 GNUNET_CONFIGURATION_get_value_string (cfg, "testing", "percentage",
2908 &topology_percentage_str))
2909 topology_percentage = 0.5;
2912 topology_percentage = atof (topology_percentage_str);
2913 GNUNET_free(topology_percentage_str);
2917 GNUNET_CONFIGURATION_get_value_string (cfg, "testing", "probability",
2918 &topology_probability_str))
2919 topology_probability = 0.5;
2922 topology_probability = atof (topology_probability_str);
2923 GNUNET_free(topology_probability_str);
2927 GNUNET_CONFIGURATION_get_value_string(cfg, "testing", "connect_topology",
2928 &connect_topology_str)) && (GNUNET_NO == GNUNET_TESTING_topology_get(&connect_topology, connect_topology_str)))
2930 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2931 "Invalid connect topology `%s' given for section %s option %s\n", connect_topology_str, "TESTING", "CONNECT_TOPOLOGY");
2933 GNUNET_free_non_null(connect_topology_str);
2936 GNUNET_CONFIGURATION_get_value_string(cfg, "testing", "connect_topology_option",
2937 &connect_topology_option_str)) && (GNUNET_NO == GNUNET_TESTING_topology_option_get(&connect_topology_option, connect_topology_option_str)))
2939 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2940 "Invalid connect topology option `%s' given for section %s option %s\n", connect_topology_option_str, "TESTING", "CONNECT_TOPOLOGY_OPTION");
2941 connect_topology_option = GNUNET_TESTING_TOPOLOGY_OPTION_ALL; /* Defaults to NONE, set to ALL */
2943 GNUNET_free_non_null(connect_topology_option_str);
2946 GNUNET_CONFIGURATION_get_value_string (cfg, "testing", "connect_topology_option_modifier",
2947 &connect_topology_option_modifier_string))
2949 if (sscanf(connect_topology_option_modifier_string, "%lf", &connect_topology_option_modifier) != 1)
2951 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2952 _("Invalid value `%s' for option `%s' in section `%s': expected float\n"),
2953 connect_topology_option_modifier_string,
2954 "connect_topology_option_modifier",
2957 GNUNET_free (connect_topology_option_modifier_string);
2960 if (GNUNET_YES != GNUNET_CONFIGURATION_get_value_string (cfg, "testing", "blacklist_transports",
2961 &blacklist_transports))
2962 blacklist_transports = NULL;
2965 GNUNET_CONFIGURATION_get_value_string(cfg, "testing", "blacklist_topology",
2966 &blacklist_topology_str)) &&
2967 (GNUNET_NO == GNUNET_TESTING_topology_get(&blacklist_topology, blacklist_topology_str)))
2969 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2970 "Invalid topology `%s' given for section %s option %s\n", topology_str, "TESTING", "BLACKLIST_TOPOLOGY");
2972 GNUNET_free_non_null(topology_str);
2973 GNUNET_free_non_null(blacklist_topology_str);
2975 /* Get number of peers to start from configuration */
2976 if (GNUNET_SYSERR ==
2977 GNUNET_CONFIGURATION_get_value_number (cfg, "testing", "num_peers",
2980 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2981 "Number of peers must be specified in section %s option %s\n", topology_str, "TESTING", "NUM_PEERS");
2983 GNUNET_assert(num_peers > 0 && num_peers < ULONG_MAX);
2984 /* Set peers_left so we know when all peers started */
2985 peers_left = num_peers;
2988 /* Set up a task to end testing if peer start fails */
2989 die_task = GNUNET_SCHEDULER_add_delayed (sched,
2990 GNUNET_TIME_relative_multiply(seconds_per_peer_start, num_peers),
2991 &end_badly, "didn't generate all hostkeys within allowed startup time!");
2993 if (dhtlog_handle == NULL)
2994 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2995 "dhtlog_handle is NULL!");
2997 trial_info.other_identifier = (unsigned int)trial_to_run;
2998 trial_info.num_nodes = peers_left;
2999 trial_info.topology = topology;
3000 trial_info.blacklist_topology = blacklist_topology;
3001 trial_info.connect_topology = connect_topology;
3002 trial_info.connect_topology_option = connect_topology_option;
3003 trial_info.connect_topology_option_modifier = connect_topology_option_modifier;
3004 trial_info.topology_percentage = topology_percentage;
3005 trial_info.topology_probability = topology_probability;
3006 trial_info.puts = num_puts;
3007 trial_info.gets = num_gets;
3008 trial_info.concurrent = max_outstanding_gets;
3009 trial_info.settle_time = settle_time;
3010 trial_info.num_rounds = 1;
3011 trial_info.malicious_getters = malicious_getters;
3012 trial_info.malicious_putters = malicious_putters;
3013 trial_info.malicious_droppers = malicious_droppers;
3014 trial_info.malicious_get_frequency = malicious_get_frequency.rel_value;
3015 trial_info.malicious_put_frequency = malicious_put_frequency.rel_value;
3016 trial_info.stop_closest = stop_closest;
3017 trial_info.stop_found = stop_found;
3018 trial_info.strict_kademlia = strict_kademlia;
3020 if (trialmessage != NULL)
3021 trial_info.message = trialmessage;
3023 trial_info.message = "";
3025 if (dhtlog_handle != NULL)
3026 dhtlog_handle->insert_trial(&trial_info);
3028 GNUNET_free_non_null(trialmessage);
3030 hostkey_meter = create_meter(peers_left, "Hostkeys created ", GNUNET_YES);
3031 peer_start_meter = create_meter(peers_left, "Peers started ", GNUNET_YES);
3033 put_meter = create_meter(num_puts, "Puts completed ", GNUNET_YES);
3034 get_meter = create_meter(num_gets, "Gets completed ", GNUNET_YES);
3035 pg = GNUNET_TESTING_daemons_start (sched, cfg,
3037 GNUNET_TIME_relative_multiply(seconds_per_peer_start, num_peers),
3038 &hostkey_callback, NULL,
3039 &peers_started_callback, NULL,
3040 &topology_callback, NULL,
3043 while (temphost != NULL)
3045 tempnext = temphost->next;
3046 GNUNET_free (temphost->username);
3047 GNUNET_free (temphost->hostname);
3048 GNUNET_free (temphost);
3049 temphost = tempnext;
3054 main (int argc, char *argv[])
3057 struct GNUNET_GETOPT_CommandLineOption options[] = {
3058 GNUNET_GETOPT_OPTION_END
3061 ret = GNUNET_PROGRAM_run (argc,
3062 argv, "gnunet-dht-driver", "nohelp",
3063 options, &run, &ok);
3065 if (ret != GNUNET_OK)
3067 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "`gnunet-dht-driver': Failed with error code %d\n", ret);
3071 * Need to remove base directory, subdirectories taken care
3072 * of by the testing framework.
3074 if (GNUNET_DISK_directory_remove (test_directory) != GNUNET_OK)
3076 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Failed to remove testing directory %s\n", test_directory);
3081 /* end of gnunet-dht-driver.c */