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;
508 * Global config handle.
510 const struct GNUNET_CONFIGURATION_Handle *config;
513 * Total number of peers to run, set based on config file.
515 static unsigned long long num_peers;
518 * Total number of items to insert.
520 static unsigned long long num_puts;
523 * How many puts do we currently have in flight?
525 static unsigned long long outstanding_puts;
528 * How many puts are done?
530 static unsigned long long puts_completed;
533 * Total number of items to attempt to get.
535 static unsigned long long num_gets;
538 * How many puts do we currently have in flight?
540 static unsigned long long outstanding_gets;
543 * How many gets are done?
545 static unsigned long long gets_completed;
548 * How many gets failed?
550 static unsigned long long gets_failed;
553 * How many malicious control messages do
554 * we currently have in flight?
556 static unsigned long long outstanding_malicious;
559 * How many set malicious peers are done?
561 static unsigned long long malicious_completed;
564 * Global used to count how many connections we have currently
565 * been notified about (how many times has topology_callback been called
568 static unsigned int total_connections;
571 * Global used to count how many failed connections we have
572 * been notified about (how many times has topology_callback
573 * been called with failure?)
575 static unsigned int failed_connections;
577 /* Task handle to use to schedule shutdown if something goes wrong */
578 GNUNET_SCHEDULER_TaskIdentifier die_task;
580 static char *blacklist_transports;
582 static enum GNUNET_TESTING_Topology topology;
584 static enum GNUNET_TESTING_Topology blacklist_topology = GNUNET_TESTING_TOPOLOGY_NONE; /* Don't do any blacklisting */
586 static enum GNUNET_TESTING_Topology connect_topology = GNUNET_TESTING_TOPOLOGY_NONE; /* NONE actually means connect all allowed peers */
588 static enum GNUNET_TESTING_TopologyOption connect_topology_option = GNUNET_TESTING_TOPOLOGY_OPTION_ALL;
590 static double connect_topology_option_modifier = 0.0;
592 static struct ProgressMeter *hostkey_meter;
594 static struct ProgressMeter *peer_start_meter;
596 static struct ProgressMeter *peer_connect_meter;
598 static struct ProgressMeter *put_meter;
600 static struct ProgressMeter *get_meter;
602 static GNUNET_HashCode *known_keys;
604 /* Global return value (0 for success, anything else for failure) */
608 * Create a meter to keep track of the progress of some task.
610 * @param total the total number of items to complete
611 * @param start_string a string to prefix the meter with (if printing)
612 * @param print GNUNET_YES to print the meter, GNUNET_NO to count
615 * @return the progress meter
617 static struct ProgressMeter *
618 create_meter(unsigned int total, char * start_string, int print)
620 struct ProgressMeter *ret;
621 ret = GNUNET_malloc(sizeof(struct ProgressMeter));
624 ret->modnum = total / 4;
625 ret->dotnum = (total / 50) + 1;
626 if (start_string != NULL)
627 ret->startup_string = GNUNET_strdup(start_string);
629 ret->startup_string = GNUNET_strdup("");
635 * Update progress meter (increment by one).
637 * @param meter the meter to update and print info for
639 * @return GNUNET_YES if called the total requested,
640 * GNUNET_NO if more items expected
643 update_meter(struct ProgressMeter *meter)
645 if (meter->print == GNUNET_YES)
647 if (meter->completed % meter->modnum == 0)
649 if (meter->completed == 0)
651 fprintf(stdout, "%sProgress: [0%%", meter->startup_string);
654 fprintf(stdout, "%d%%", (int)(((float)meter->completed / meter->total) * 100));
656 else if (meter->completed % meter->dotnum == 0)
657 fprintf(stdout, ".");
659 if (meter->completed + 1 == meter->total)
660 fprintf(stdout, "%d%%]\n", 100);
665 if (meter->completed == meter->total)
671 * Reset progress meter.
673 * @param meter the meter to reset
675 * @return GNUNET_YES if meter reset,
676 * GNUNET_SYSERR on error
679 reset_meter(struct ProgressMeter *meter)
682 return GNUNET_SYSERR;
684 meter->completed = 0;
689 * Release resources for meter
691 * @param meter the meter to free
694 free_meter(struct ProgressMeter *meter)
696 GNUNET_free_non_null(meter->startup_string);
697 GNUNET_free_non_null(meter);
701 * Check whether peers successfully shut down.
704 shutdown_callback (void *cls,
715 * Task to release DHT handles for PUT
718 put_disconnect_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
720 struct TestPutContext *test_put = cls;
721 test_put->disconnect_task = GNUNET_SCHEDULER_NO_TASK;
722 GNUNET_DHT_disconnect(test_put->dht_handle);
723 test_put->dht_handle = NULL;
724 test_put->daemon = GNUNET_TESTING_daemon_get(pg, GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers));
728 * Function scheduled to be run on the successful completion of this
732 finish_testing (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
734 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Ending test normally!\n", (char *)cls);
735 GNUNET_assert (pg != NULL);
736 struct TestPutContext *test_put = all_puts;
737 struct TestGetContext *test_get = all_gets;
739 while (test_put != NULL)
741 if (test_put->disconnect_task != GNUNET_SCHEDULER_NO_TASK)
742 GNUNET_SCHEDULER_cancel(test_put->disconnect_task);
743 if (test_put->dht_handle != NULL)
744 GNUNET_DHT_disconnect(test_put->dht_handle);
745 test_put = test_put->next;
748 while (test_get != NULL)
750 if (test_get->disconnect_task != GNUNET_SCHEDULER_NO_TASK)
751 GNUNET_SCHEDULER_cancel(test_get->disconnect_task);
752 if (test_get->get_handle != NULL)
753 GNUNET_DHT_get_stop(test_get->get_handle);
754 if (test_get->dht_handle != NULL)
755 GNUNET_DHT_disconnect(test_get->dht_handle);
756 test_get = test_get->next;
759 GNUNET_TESTING_daemons_stop (pg, DEFAULT_TIMEOUT, &shutdown_callback, NULL);
761 if (dhtlog_handle != NULL)
763 fprintf(stderr, "Update trial endtime\n");
764 dhtlog_handle->update_trial (trialuid, gets_completed);
765 GNUNET_DHTLOG_disconnect(dhtlog_handle);
766 dhtlog_handle = NULL;
769 if (hostkey_meter != NULL)
770 free_meter(hostkey_meter);
771 if (peer_start_meter != NULL)
772 free_meter(peer_start_meter);
773 if (peer_connect_meter != NULL)
774 free_meter(peer_connect_meter);
775 if (put_meter != NULL)
776 free_meter(put_meter);
777 if (get_meter != NULL)
778 free_meter(get_meter);
784 * Callback for iterating over all the peer connections of a peer group.
787 log_topology_cb (void *cls,
788 const struct GNUNET_PeerIdentity *first,
789 const struct GNUNET_PeerIdentity *second,
790 struct GNUNET_TIME_Relative latency,
794 struct TopologyIteratorContext *topo_ctx = cls;
795 if ((first != NULL) && (second != NULL))
797 if ((topo_ctx->peers_seen != NULL) && (GNUNET_NO == GNUNET_CONTAINER_multihashmap_contains(topo_ctx->peers_seen, &first->hashPubKey)))
799 GNUNET_CONTAINER_multihashmap_put(topo_ctx->peers_seen, &first->hashPubKey, NULL, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
800 topo_ctx->total_peers++;
802 topo_ctx->total_connections++;
803 if (GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno(config, "dht_testing", "mysql_logging_extended"))
804 dhtlog_handle->insert_extended_topology(first, second);
808 GNUNET_assert(dhtlog_handle != NULL);
809 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);
810 dhtlog_handle->update_topology(topo_ctx->total_connections);
811 if (topo_ctx->cont != NULL)
812 GNUNET_SCHEDULER_add_now (topo_ctx->cont, topo_ctx->cls);
813 if (topo_ctx->peers_seen != NULL)
814 GNUNET_CONTAINER_multihashmap_destroy(topo_ctx->peers_seen);
815 GNUNET_free(topo_ctx);
820 * Iterator over hash map entries.
822 * @param cls closure - always NULL
823 * @param key current key code
824 * @param value value in the hash map, a stats context
825 * @return GNUNET_YES if we should continue to
829 static int stats_iterate (void *cls,
830 const GNUNET_HashCode * key,
833 struct StatisticsIteratorContext *stats_ctx;
837 dhtlog_handle->insert_stat(stats_ctx->peer, stats_ctx->stat_routes, stats_ctx->stat_route_forwards, stats_ctx->stat_results,
838 stats_ctx->stat_results_to_client, stats_ctx->stat_result_forwards, stats_ctx->stat_gets,
839 stats_ctx->stat_puts, stats_ctx->stat_puts_inserted, stats_ctx->stat_find_peer,
840 stats_ctx->stat_find_peer_start, stats_ctx->stat_get_start, stats_ctx->stat_put_start,
841 stats_ctx->stat_find_peer_reply, stats_ctx->stat_get_reply, stats_ctx->stat_find_peer_answer,
842 stats_ctx->stat_get_response_start);
843 GNUNET_free(stats_ctx);
848 stats_finished (void *cls, int result)
850 fprintf(stderr, "Finished getting all peers statistics, iterating!\n");
851 GNUNET_CONTAINER_multihashmap_iterate(stats_map, &stats_iterate, NULL);
852 GNUNET_CONTAINER_multihashmap_destroy(stats_map);
853 GNUNET_SCHEDULER_add_now (&finish_testing, NULL);
857 * Callback function to process statistic values.
860 * @param peer the peer the statistics belong to
861 * @param subsystem name of subsystem that created the statistic
862 * @param name the name of the datum
863 * @param value the current value
864 * @param is_persistent GNUNET_YES if the value is persistent, GNUNET_NO if not
865 * @return GNUNET_OK to continue, GNUNET_SYSERR to abort iteration
867 static int stats_handle (void *cls,
868 const struct GNUNET_PeerIdentity *peer,
869 const char *subsystem,
874 struct StatisticsIteratorContext *stats_ctx;
876 if (dhtlog_handle != NULL)
877 dhtlog_handle->add_generic_stat(peer, name, subsystem, value);
878 if (GNUNET_CONTAINER_multihashmap_contains(stats_map, &peer->hashPubKey))
880 stats_ctx = GNUNET_CONTAINER_multihashmap_get(stats_map, &peer->hashPubKey);
884 stats_ctx = GNUNET_malloc(sizeof(struct StatisticsIteratorContext));
885 stats_ctx->peer = peer;
886 GNUNET_CONTAINER_multihashmap_put(stats_map, &peer->hashPubKey, stats_ctx, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
888 GNUNET_assert(stats_ctx != NULL);
890 if (strcmp(name, STAT_ROUTES) == 0)
891 stats_ctx->stat_routes = value;
892 else if (strcmp(name, STAT_ROUTE_FORWARDS) == 0)
893 stats_ctx->stat_route_forwards = value;
894 else if (strcmp(name, STAT_RESULTS) == 0)
895 stats_ctx->stat_results = value;
896 else if (strcmp(name, STAT_RESULTS_TO_CLIENT) == 0)
897 stats_ctx->stat_results_to_client = value;
898 else if (strcmp(name, STAT_RESULT_FORWARDS) == 0)
899 stats_ctx->stat_result_forwards = value;
900 else if (strcmp(name, STAT_GETS) == 0)
901 stats_ctx->stat_gets = value;
902 else if (strcmp(name, STAT_PUTS) == 0)
903 stats_ctx->stat_puts = value;
904 else if (strcmp(name, STAT_PUTS_INSERTED) == 0)
905 stats_ctx->stat_puts_inserted = value;
906 else if (strcmp(name, STAT_FIND_PEER) == 0)
907 stats_ctx->stat_find_peer = value;
908 else if (strcmp(name, STAT_FIND_PEER_START) == 0)
909 stats_ctx->stat_find_peer_start = value;
910 else if (strcmp(name, STAT_GET_START) == 0)
911 stats_ctx->stat_get_start = value;
912 else if (strcmp(name, STAT_PUT_START) == 0)
913 stats_ctx->stat_put_start = value;
914 else if (strcmp(name, STAT_FIND_PEER_REPLY) == 0)
915 stats_ctx->stat_find_peer_reply = value;
916 else if (strcmp(name, STAT_GET_REPLY) == 0)
917 stats_ctx->stat_get_reply = value;
918 else if (strcmp(name, STAT_FIND_PEER_ANSWER) == 0)
919 stats_ctx->stat_find_peer_answer = value;
920 else if (strcmp(name, STAT_GET_RESPONSE_START) == 0)
921 stats_ctx->stat_get_response_start = value;
927 * Connect to statistics service for each peer and get the appropriate
928 * dht statistics for safe keeping.
931 log_dht_statistics (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
933 stats_map = GNUNET_CONTAINER_multihashmap_create(num_peers);
934 fprintf(stderr, "Starting statistics logging\n");
935 GNUNET_TESTING_get_statistics(pg, &stats_finished, &stats_handle, NULL);
940 * Connect to all peers in the peer group and iterate over their
944 capture_current_topology (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
946 struct TopologyIteratorContext *topo_ctx = cls;
947 dhtlog_handle->insert_topology(0);
948 GNUNET_TESTING_get_topology (pg, &log_topology_cb, topo_ctx);
953 * Check if the get_handle is being used, if so stop the request. Either
954 * way, schedule the end_badly_cont function which actually shuts down the
958 end_badly (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
960 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Failing test with error: `%s'!\n", (char *)cls);
962 struct TestPutContext *test_put = all_puts;
963 struct TestGetContext *test_get = all_gets;
965 while (test_put != NULL)
967 if (test_put->disconnect_task != GNUNET_SCHEDULER_NO_TASK)
968 GNUNET_SCHEDULER_cancel(test_put->disconnect_task);
969 if (test_put->dht_handle != NULL)
970 GNUNET_DHT_disconnect(test_put->dht_handle);
971 test_put = test_put->next;
974 while (test_get != NULL)
976 if (test_get->disconnect_task != GNUNET_SCHEDULER_NO_TASK)
977 GNUNET_SCHEDULER_cancel(test_get->disconnect_task);
978 if (test_get->get_handle != NULL)
979 GNUNET_DHT_get_stop(test_get->get_handle);
980 if (test_get->dht_handle != NULL)
981 GNUNET_DHT_disconnect(test_get->dht_handle);
982 test_get = test_get->next;
985 GNUNET_TESTING_daemons_stop (pg, DEFAULT_TIMEOUT, &shutdown_callback, NULL);
987 if (dhtlog_handle != NULL)
989 fprintf(stderr, "Update trial endtime\n");
990 dhtlog_handle->update_trial (trialuid, gets_completed);
991 GNUNET_DHTLOG_disconnect(dhtlog_handle);
992 dhtlog_handle = NULL;
995 if (hostkey_meter != NULL)
996 free_meter(hostkey_meter);
997 if (peer_start_meter != NULL)
998 free_meter(peer_start_meter);
999 if (peer_connect_meter != NULL)
1000 free_meter(peer_connect_meter);
1001 if (put_meter != NULL)
1002 free_meter(put_meter);
1003 if (get_meter != NULL)
1004 free_meter(get_meter);
1010 * Forward declaration.
1013 do_put (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc);
1016 * Forward declaration.
1019 do_get (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc);
1022 * Iterator over hash map entries.
1024 * @param cls closure
1025 * @param key current key code
1026 * @param value value in the hash map
1027 * @return GNUNET_YES if we should continue to
1031 static int remove_peer_count (void *cls,
1032 const GNUNET_HashCode * key,
1035 struct FindPeerContext *find_peer_ctx = cls;
1036 struct PeerCount *peer_count = value;
1037 GNUNET_CONTAINER_heap_remove_node(find_peer_ctx->peer_min_heap, peer_count->heap_node);
1038 GNUNET_free(peer_count);
1044 * Connect to all peers in the peer group and iterate over their
1048 count_new_peers (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1050 struct FindPeerContext *find_peer_context = cls;
1051 find_peer_context->previous_peers = find_peer_context->current_peers;
1052 find_peer_context->current_peers = 0;
1053 GNUNET_TESTING_get_topology (pg, find_peer_context->count_peers_cb, find_peer_context);
1057 decrement_find_peers (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1059 struct TestFindPeer *test_find_peer = cls;
1060 GNUNET_assert(test_find_peer->find_peer_context->outstanding > 0);
1061 test_find_peer->find_peer_context->outstanding--;
1062 test_find_peer->find_peer_context->total--;
1063 if ((0 == test_find_peer->find_peer_context->total) &&
1064 (GNUNET_TIME_absolute_get_remaining(test_find_peer->find_peer_context->endtime).rel_value > 60))
1066 GNUNET_SCHEDULER_add_now(&count_new_peers, test_find_peer->find_peer_context);
1068 GNUNET_free(test_find_peer);
1072 * A find peer request has been sent to the server, now we will schedule a task
1073 * to wait the appropriate time to allow the request to go out and back.
1075 * @param cls closure - a TestFindPeer struct
1076 * @param tc context the task is being called with
1079 handle_find_peer_sent (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1081 struct TestFindPeer *test_find_peer = cls;
1083 GNUNET_DHT_disconnect(test_find_peer->dht_handle);
1084 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_divide(find_peer_delay, 2), &decrement_find_peers, test_find_peer);
1089 send_find_peer_request (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1091 struct TestFindPeer *test_find_peer = cls;
1093 if (test_find_peer->find_peer_context->outstanding > max_outstanding_find_peers)
1095 GNUNET_SCHEDULER_add_delayed(find_peer_offset, &send_find_peer_request, test_find_peer);
1099 test_find_peer->find_peer_context->outstanding++;
1100 if (GNUNET_TIME_absolute_get_remaining(test_find_peer->find_peer_context->endtime).rel_value == 0)
1102 GNUNET_SCHEDULER_add_now(&decrement_find_peers, test_find_peer);
1106 test_find_peer->dht_handle = GNUNET_DHT_connect(test_find_peer->daemon->cfg, 1);
1107 GNUNET_assert(test_find_peer->dht_handle != NULL);
1108 GNUNET_DHT_find_peers (test_find_peer->dht_handle,
1109 &handle_find_peer_sent, test_find_peer);
1114 * Add a connection to the find_peer_context given. This may
1115 * be complete overkill, but allows us to choose the peers with
1116 * the least connections to initiate find peer requests from.
1118 static void add_new_connection(struct FindPeerContext *find_peer_context,
1119 const struct GNUNET_PeerIdentity *first,
1120 const struct GNUNET_PeerIdentity *second)
1122 struct PeerCount *first_count;
1123 struct PeerCount *second_count;
1125 if (GNUNET_CONTAINER_multihashmap_contains(find_peer_context->peer_hash, &first->hashPubKey))
1127 first_count = GNUNET_CONTAINER_multihashmap_get(find_peer_context->peer_hash, &first->hashPubKey);
1128 first_count->count++;
1129 GNUNET_CONTAINER_heap_update_cost(find_peer_context->peer_min_heap, first_count->heap_node, first_count->count);
1133 first_count = GNUNET_malloc(sizeof(struct PeerCount));
1134 first_count->count = 1;
1135 memcpy(&first_count->peer_id, first, sizeof(struct GNUNET_PeerIdentity));
1136 first_count->heap_node = GNUNET_CONTAINER_heap_insert(find_peer_context->peer_min_heap, first_count, first_count->count);
1137 GNUNET_CONTAINER_multihashmap_put(find_peer_context->peer_hash, &first->hashPubKey, first_count, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
1140 if (GNUNET_CONTAINER_multihashmap_contains(find_peer_context->peer_hash, &second->hashPubKey))
1142 second_count = GNUNET_CONTAINER_multihashmap_get(find_peer_context->peer_hash, &second->hashPubKey);
1143 second_count->count++;
1144 GNUNET_CONTAINER_heap_update_cost(find_peer_context->peer_min_heap, second_count->heap_node, second_count->count);
1148 second_count = GNUNET_malloc(sizeof(struct PeerCount));
1149 second_count->count = 1;
1150 memcpy(&second_count->peer_id, second, sizeof(struct GNUNET_PeerIdentity));
1151 second_count->heap_node = GNUNET_CONTAINER_heap_insert(find_peer_context->peer_min_heap, second_count, second_count->count);
1152 GNUNET_CONTAINER_multihashmap_put(find_peer_context->peer_hash, &second->hashPubKey, second_count, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
1158 * Iterate over min heap of connections per peer. For any
1159 * peer that has 0 connections, attempt to connect them to
1162 * @param cls closure a struct FindPeerContext
1163 * @param node internal node of the heap
1164 * @param element value stored, a struct PeerCount
1165 * @param cost cost associated with the node
1166 * @return GNUNET_YES if we should continue to iterate,
1169 static int iterate_min_heap_peers (void *cls,
1170 struct GNUNET_CONTAINER_HeapNode *node,
1172 GNUNET_CONTAINER_HeapCostType cost)
1174 struct FindPeerContext *find_peer_context = cls;
1175 struct PeerCount *peer_count = element;
1176 struct GNUNET_TESTING_Daemon *d1;
1177 struct GNUNET_TESTING_Daemon *d2;
1178 struct GNUNET_TIME_Relative timeout;
1181 d1 = GNUNET_TESTING_daemon_get_by_id (pg, &peer_count->peer_id);
1183 while ((d2 == d1) || (GNUNET_YES != GNUNET_TESTING_daemon_running(d2)))
1185 d2 = GNUNET_TESTING_daemon_get(pg, GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers));
1188 /** Just try to connect the peers, don't worry about callbacks, etc. **/
1189 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);
1190 timeout = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, DEFAULT_CONNECT_TIMEOUT);
1191 if (GNUNET_TIME_relative_to_absolute(timeout).abs_value > find_peer_context->endtime.abs_value)
1193 timeout = GNUNET_TIME_absolute_get_remaining(find_peer_context->endtime);
1195 GNUNET_TESTING_daemons_connect(d1, d2, timeout, DEFAULT_RECONNECT_ATTEMPTS, NULL, NULL);
1197 if (GNUNET_TIME_absolute_get_remaining(find_peer_context->endtime).rel_value > 0)
1204 * Forward declaration.
1207 schedule_churn_find_peer_requests (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc);
1210 * Callback for iterating over all the peer connections of a peer group.
1211 * Used after we have churned on some peers to find which ones have zero
1212 * connections so we can make them issue find peer requests.
1215 count_peers_churn_cb (void *cls,
1216 const struct GNUNET_PeerIdentity *first,
1217 const struct GNUNET_PeerIdentity *second,
1218 struct GNUNET_TIME_Relative latency,
1222 struct FindPeerContext *find_peer_context = cls;
1223 struct TopologyIteratorContext *topo_ctx;
1224 struct PeerCount *peer_count;
1226 if ((first != NULL) && (second != NULL))
1228 add_new_connection(find_peer_context, first, second);
1229 find_peer_context->current_peers++;
1233 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Peer count finished (%u connections)\n",
1234 find_peer_context->current_peers);
1235 peer_count = GNUNET_CONTAINER_heap_peek(find_peer_context->peer_min_heap);
1237 /* 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. */
1238 /* NO they won't, because we have disabled peerinfo writing to disk (remember?) so we WILL have to give them new connections */
1239 /* Best course of action: have DHT automatically try to add peers from peerinfo on startup. This way IF peerinfo writes to file
1240 * then some peers will end up connected.
1242 * Also, find any peers that have zero connections here and set up a task to choose at random another peer in the network to
1243 * 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
1244 * until they get a peer.
1246 /* However, they won't automatically be connected to any of their previous peers... How can we handle that? */
1247 /* So now we have choices: do we want them to come back with all their connections? Probably not, but it solves this mess. */
1249 /* Second problem, which is still a problem, is that a FIND_PEER request won't work when a peer has no connections */
1252 * Okay, so here's how this *should* work now.
1254 * 1. We check the min heap for any peers that have 0 connections.
1255 * a. If any are found, we iterate over the heap and just randomly
1256 * choose another peer and ask testing to please connect the two.
1257 * This takes care of the case that a peer just randomly joins the
1258 * network. However, if there are strict topology restrictions
1259 * (imagine a ring) choosing randomly most likely won't help.
1260 * We make sure the connection attempt doesn't take longer than
1261 * the total timeout, but don't care too much about the result.
1262 * b. After that, we still schedule the find peer requests (concurrently
1263 * with the connect attempts most likely). This handles the case
1264 * that the DHT iterates over peerinfo and just needs to try to send
1265 * a message to get connected. This should handle the case that the
1266 * topology is very strict.
1268 * 2. If all peers have > 0 connections, we still send find peer requests
1269 * as long as possible (until timeout is reached) to help out those
1270 * peers that were newly churned and need more connections. This is because
1271 * once all new peers have established a single connection, they won't be
1274 * 3. Once we reach the timeout, we can do no more. We must schedule the
1275 * next iteration of get requests regardless of connections that peers
1276 * may or may not have.
1278 * Caveat: it would be nice to get peers to take data offline with them and
1279 * come back with it (or not) based on the testing framework. The
1280 * same goes for remembering previous connections, but putting either
1281 * into the general testing churn options seems like overkill because
1282 * these are very specialized cases.
1284 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);
1285 if ((peer_count->count == 0) && (GNUNET_TIME_absolute_get_remaining(find_peer_context->endtime).rel_value > 0))
1287 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Found peer with no connections, will choose some peer(s) at random to connect to!\n");
1288 GNUNET_CONTAINER_heap_iterate (find_peer_context->peer_min_heap, &iterate_min_heap_peers, find_peer_context);
1289 GNUNET_SCHEDULER_add_now(&schedule_churn_find_peer_requests, find_peer_context);
1291 else if ((GNUNET_TIME_absolute_get_remaining(find_peer_context->endtime).rel_value > 0) && (find_peer_context->last_sent != 0))
1293 GNUNET_SCHEDULER_add_now(&schedule_churn_find_peer_requests, find_peer_context);
1297 GNUNET_CONTAINER_multihashmap_iterate(find_peer_context->peer_hash, &remove_peer_count, find_peer_context);
1298 GNUNET_CONTAINER_multihashmap_destroy(find_peer_context->peer_hash);
1299 GNUNET_CONTAINER_heap_destroy(find_peer_context->peer_min_heap);
1300 GNUNET_free(find_peer_context);
1301 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Churn round %u of %llu finished, scheduling next GET round.\n", current_churn_round, churn_rounds);
1302 if (dhtlog_handle != NULL)
1304 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
1305 topo_ctx->cont = &do_get;
1306 topo_ctx->cls = all_gets;
1307 topo_ctx->timeout = DEFAULT_GET_TIMEOUT;
1308 topo_ctx->peers_seen = GNUNET_CONTAINER_multihashmap_create(num_peers);
1309 die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_add(GNUNET_TIME_relative_add(DEFAULT_GET_TIMEOUT, all_get_timeout), DEFAULT_TOPOLOGY_CAPTURE_TIMEOUT),
1310 &end_badly, "from do gets (count_peers_churn_cb)");
1311 GNUNET_SCHEDULER_add_now(&capture_current_topology, topo_ctx);
1315 die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_add(GNUNET_TIME_relative_add(DEFAULT_GET_TIMEOUT, all_get_timeout), DEFAULT_TOPOLOGY_CAPTURE_TIMEOUT),
1316 &end_badly, "from do gets (count_peers_churn_cb)");
1317 GNUNET_SCHEDULER_add_now(&do_get, all_gets);
1324 * Set up a single find peer request for each peer in the topology. Do this
1325 * until the settle time is over, limited by the number of outstanding requests
1326 * and the time allowed for each one!
1329 schedule_churn_find_peer_requests (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1331 struct FindPeerContext *find_peer_ctx = cls;
1332 struct TestFindPeer *test_find_peer;
1333 struct PeerCount *peer_count;
1336 if (find_peer_ctx->previous_peers == 0) /* First time, go slowly */
1337 find_peer_ctx->total = 1;
1338 else if (find_peer_ctx->current_peers - find_peer_ctx->previous_peers < MIN_FIND_PEER_CUTOFF)
1339 find_peer_ctx->total = find_peer_ctx->total / 2;
1340 else if (find_peer_ctx->current_peers - find_peer_ctx->previous_peers > MAX_FIND_PEER_CUTOFF) /* Found LOTS of peers, still go slowly */
1341 find_peer_ctx->total = find_peer_ctx->last_sent - (find_peer_ctx->last_sent / 4);
1343 find_peer_ctx->total = find_peer_ctx->last_sent * 4;
1345 if (find_peer_ctx->total > max_outstanding_find_peers)
1346 find_peer_ctx->total = max_outstanding_find_peers;
1348 find_peer_ctx->last_sent = find_peer_ctx->total;
1349 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Sending %u find peer messages (after churn)\n", find_peer_ctx->total);
1351 if (find_peer_ctx->total > 0)
1352 find_peer_offset = GNUNET_TIME_relative_divide(find_peer_delay, find_peer_ctx->total);
1355 find_peer_ctx->previous_peers = find_peer_ctx->current_peers;
1356 find_peer_ctx->current_peers = 0;
1357 GNUNET_TESTING_get_topology (pg, &count_peers_churn_cb, find_peer_ctx);
1361 for (i = 0; i < find_peer_ctx->total; i++)
1363 test_find_peer = GNUNET_malloc(sizeof(struct TestFindPeer));
1364 /* If we have sent requests, choose peers with a low number of connections to send requests from */
1365 peer_count = GNUNET_CONTAINER_heap_remove_root(find_peer_ctx->peer_min_heap);
1366 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Sending find peer request from peer with %u connections\n", peer_count->count);
1367 GNUNET_CONTAINER_multihashmap_remove(find_peer_ctx->peer_hash, &peer_count->peer_id.hashPubKey, peer_count);
1368 test_find_peer->daemon = GNUNET_TESTING_daemon_get_by_id(pg, &peer_count->peer_id);
1369 GNUNET_assert(test_find_peer->daemon != NULL);
1370 test_find_peer->find_peer_context = find_peer_ctx;
1371 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_multiply(find_peer_offset, i), &send_find_peer_request, test_find_peer);
1374 if ((find_peer_ctx->peer_hash == NULL) && (find_peer_ctx->peer_min_heap == NULL))
1376 find_peer_ctx->peer_hash = GNUNET_CONTAINER_multihashmap_create(num_peers);
1377 find_peer_ctx->peer_min_heap = GNUNET_CONTAINER_heap_create(GNUNET_CONTAINER_HEAP_ORDER_MIN);
1381 GNUNET_CONTAINER_multihashmap_iterate(find_peer_ctx->peer_hash, &remove_peer_count, find_peer_ctx);
1382 GNUNET_CONTAINER_multihashmap_destroy(find_peer_ctx->peer_hash);
1383 find_peer_ctx->peer_hash = GNUNET_CONTAINER_multihashmap_create(num_peers);
1386 GNUNET_assert(0 == GNUNET_CONTAINER_multihashmap_size(find_peer_ctx->peer_hash));
1387 GNUNET_assert(0 == GNUNET_CONTAINER_heap_get_size(find_peer_ctx->peer_min_heap));
1390 static void schedule_churn_get_topology (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1392 struct FindPeerContext *find_peer_context = cls;
1393 GNUNET_TESTING_get_topology (pg, &count_peers_churn_cb, find_peer_context);
1397 * Called when churning of the topology has finished.
1399 * @param cls closure unused
1400 * @param emsg NULL on success, or a printable error on failure
1402 static void churn_complete (void *cls, const char *emsg)
1404 struct FindPeerContext *find_peer_context = cls;
1405 struct PeerCount *peer_count;
1407 struct GNUNET_TESTING_Daemon *temp_daemon;
1408 struct TopologyIteratorContext *topo_ctx;
1409 struct GNUNET_TIME_Relative calc_timeout;
1414 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Ending test, churning of peers failed with error `%s'", emsg);
1415 GNUNET_SCHEDULER_add_now(&end_badly, (void *)emsg);
1420 * If we switched any peers on, we have to somehow force connect the new peer to
1421 * SOME bootstrap peer in the network. First schedule a task to find all peers
1422 * with no connections, then choose a random peer for each and connect them.
1424 if (find_peer_context != NULL)
1426 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "We have churned on some peers, so we must schedule find peer requests for them!\n");
1428 for (i = 0; i < num_peers; i ++)
1430 temp_daemon = GNUNET_TESTING_daemon_get(pg, i);
1431 if (GNUNET_YES == GNUNET_TESTING_daemon_running(temp_daemon))
1433 peer_count = GNUNET_malloc (sizeof(struct PeerCount));
1434 memcpy(&peer_count->peer_id, &temp_daemon->id, sizeof(struct GNUNET_PeerIdentity));
1435 GNUNET_assert(peer_count->count == 0);
1436 peer_count->heap_node = GNUNET_CONTAINER_heap_insert(find_peer_context->peer_min_heap, peer_count, peer_count->count);
1437 GNUNET_CONTAINER_multihashmap_put(find_peer_context->peer_hash, &temp_daemon->id.hashPubKey, peer_count, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
1441 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));
1442 GNUNET_SCHEDULER_add_delayed(DEFAULT_PEER_DISCONNECT_TIMEOUT, &schedule_churn_get_topology, find_peer_context);
1443 //GNUNET_TESTING_get_topology (pg, &count_peers_churn_cb, find_peer_context);
1447 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");
1448 if (dhtlog_handle != NULL)
1450 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
1451 topo_ctx->cont = &do_get;
1452 topo_ctx->cls = all_gets;
1453 topo_ctx->timeout = DEFAULT_GET_TIMEOUT;
1454 topo_ctx->peers_seen = GNUNET_CONTAINER_multihashmap_create(num_peers);
1455 calc_timeout = GNUNET_TIME_relative_add(DEFAULT_GET_TIMEOUT, all_get_timeout);
1456 calc_timeout = GNUNET_TIME_relative_add(calc_timeout, DEFAULT_TOPOLOGY_CAPTURE_TIMEOUT);
1457 calc_timeout = GNUNET_TIME_relative_add(calc_timeout, DEFAULT_PEER_DISCONNECT_TIMEOUT);
1458 die_task = GNUNET_SCHEDULER_add_delayed (calc_timeout,
1459 &end_badly, "from do gets (churn_complete)");
1460 GNUNET_SCHEDULER_add_delayed(DEFAULT_PEER_DISCONNECT_TIMEOUT, &capture_current_topology, topo_ctx);
1464 calc_timeout = GNUNET_TIME_relative_add(DEFAULT_GET_TIMEOUT, all_get_timeout);
1465 calc_timeout = GNUNET_TIME_relative_add(calc_timeout, DEFAULT_PEER_DISCONNECT_TIMEOUT);
1466 die_task = GNUNET_SCHEDULER_add_delayed (calc_timeout,
1467 &end_badly, "from do gets (churn_complete)");
1468 if (dhtlog_handle != NULL)
1469 dhtlog_handle->insert_round(DHT_ROUND_GET, rounds_finished);
1470 GNUNET_SCHEDULER_add_delayed(DEFAULT_PEER_DISCONNECT_TIMEOUT, &do_get, all_gets);
1476 * Decide how many peers to turn on or off in this round, make sure the
1477 * numbers actually make sense, then do so. This function sets in motion
1478 * churn, find peer requests for newly joined peers, and issuing get
1479 * requests once the new peers have done so.
1481 * @param cls closure (unused)
1482 * @param cls task context (unused)
1485 churn_peers (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1487 unsigned int count_running;
1488 unsigned int churn_up;
1489 unsigned int churn_down;
1490 struct GNUNET_TIME_Relative timeout;
1491 struct FindPeerContext *find_peer_context;
1493 churn_up = churn_down = 0;
1494 count_running = GNUNET_TESTING_daemons_running(pg);
1495 if (count_running > churn_array[current_churn_round])
1496 churn_down = count_running - churn_array[current_churn_round];
1497 else if (count_running < churn_array[current_churn_round])
1498 churn_up = churn_array[current_churn_round] - count_running;
1500 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Not churning any peers, topology unchanged.\n");
1502 if (churn_up > num_peers - count_running)
1504 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Churn file specified %u peers (up); only have %u!", churn_array[current_churn_round], num_peers);
1505 churn_up = num_peers - count_running;
1507 else if (churn_down > count_running)
1509 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Churn file specified %u peers (down); only have %u!", churn_array[current_churn_round], count_running);
1510 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "This will leave NO peers running (mistake in churn configuration?)!");
1511 churn_down = count_running;
1513 //timeout = GNUNET_TIME_relative_multiply(seconds_per_peer_start, churn_up > 0 ? churn_up : churn_down);
1514 //timeout = GNUNET_TIME_relative_multiply (seconds_per_peer_start, churn_up > 0 ? churn_up : churn_down);
1515 timeout = GNUNET_TIME_relative_multiply(DEFAULT_TIMEOUT, 2); /* FIXME: Lack of intelligent choice here */
1516 find_peer_context = NULL;
1517 if (churn_up > 0) /* Only need to do find peer requests if we turned new peers on */
1519 find_peer_context = GNUNET_malloc(sizeof(struct FindPeerContext));
1520 find_peer_context->count_peers_cb = &count_peers_churn_cb;
1521 find_peer_context->previous_peers = 0;
1522 find_peer_context->current_peers = 0;
1523 find_peer_context->endtime = GNUNET_TIME_relative_to_absolute(timeout);
1524 find_peer_context->peer_hash = GNUNET_CONTAINER_multihashmap_create(num_peers);
1525 find_peer_context->peer_min_heap = GNUNET_CONTAINER_heap_create(GNUNET_CONTAINER_HEAP_ORDER_MIN);
1527 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "churn_peers: want %u total, %u running, starting %u, stopping %u\n",
1528 churn_array[current_churn_round], count_running, churn_up, churn_down);
1529 GNUNET_TESTING_daemons_churn (pg, churn_down, churn_up, timeout, &churn_complete, find_peer_context);
1530 current_churn_round++;
1534 * Task to release DHT handle associated with GET request.
1537 get_stop_finished (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1539 struct TestGetContext *test_get = cls;
1540 struct TopologyIteratorContext *topo_ctx;
1542 /* The dht_handle may be null if this get was scheduled from a down peer */
1543 if (test_get->dht_handle != NULL)
1545 GNUNET_DHT_disconnect(test_get->dht_handle);
1546 outstanding_gets--; /* GET is really finished */
1547 test_get->dht_handle = NULL;
1550 /* Reset the uid (which item to search for) and the daemon (which peer to search from) for later get request iterations */
1551 if (get_from_same == GNUNET_NO)
1553 test_get->uid = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_puts);
1554 test_get->daemon = GNUNET_TESTING_daemon_get(pg, GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers));
1558 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "%d gets succeeded, %d gets failed!\n", gets_completed, gets_failed);
1560 update_meter(get_meter);
1561 if ((gets_completed + gets_failed == num_gets) && (outstanding_gets == 0))
1563 fprintf(stderr, "Canceling die task (get_stop_finished) %llu gets completed, %llu gets failed\n", gets_completed, gets_failed);
1564 GNUNET_SCHEDULER_cancel(die_task);
1565 reset_meter(put_meter);
1566 reset_meter(get_meter);
1569 * 1) Testing is completely finished, call the topology iteration dealy and die
1570 * 2) Testing is not finished, churn the network and do gets again (current_churn_round < churn_rounds)
1571 * 3) Testing is not finished, reschedule all the PUTS *and* GETS again (num_rounds > 1)
1573 if (rounds_finished == total_rounds - 1) /* Everything is finished, end testing */
1575 if (dhtlog_handle != NULL)
1577 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
1578 topo_ctx->cont = &log_dht_statistics;
1579 topo_ctx->peers_seen = GNUNET_CONTAINER_multihashmap_create(num_peers);
1580 GNUNET_SCHEDULER_add_now(&capture_current_topology, topo_ctx);
1583 GNUNET_SCHEDULER_add_now (&finish_testing, NULL);
1585 else if (current_churn_round < churns_per_round * (rounds_finished + 1)) /* Do next round of churn */
1587 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);
1591 if (dhtlog_handle != NULL)
1592 dhtlog_handle->insert_round(DHT_ROUND_CHURN, rounds_finished);
1594 GNUNET_SCHEDULER_add_now(&churn_peers, NULL);
1596 else if (rounds_finished < total_rounds - 1) /* Start a new complete round */
1601 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Round %u of %llu finished, scheduling next round.\n", rounds_finished, total_rounds);
1603 /** We reset the peer daemon for puts and gets on each disconnect, so all we need to do is start another round! */
1604 if (GNUNET_YES == in_dht_replication) /* Replication done in DHT, don't redo puts! */
1606 if (dhtlog_handle != NULL)
1607 dhtlog_handle->insert_round(DHT_ROUND_GET, rounds_finished);
1609 die_task = GNUNET_SCHEDULER_add_delayed (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),
1610 &end_badly, "from do gets (next round)");
1611 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, round_delay), &do_get, all_gets);
1615 if (dhtlog_handle != NULL)
1616 dhtlog_handle->insert_round(DHT_ROUND_NORMAL, rounds_finished);
1617 die_task = GNUNET_SCHEDULER_add_delayed (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)),
1618 &end_badly, "from do puts");
1619 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, round_delay), &do_put, all_puts);
1626 * Task to release get handle.
1629 get_stop_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1631 struct TestGetContext *test_get = cls;
1633 if (tc->reason == GNUNET_SCHEDULER_REASON_TIMEOUT)
1635 GNUNET_assert(test_get->get_handle != NULL);
1636 GNUNET_DHT_get_stop(test_get->get_handle);
1637 test_get->get_handle = NULL;
1638 test_get->disconnect_task = GNUNET_SCHEDULER_NO_TASK;
1639 GNUNET_SCHEDULER_add_now (&get_stop_finished, test_get);
1643 * Iterator called if the GET request initiated returns a response.
1645 * @param cls closure
1646 * @param exp when will this value expire
1647 * @param key key of the result
1648 * @param get_path NULL-terminated array of pointers
1649 * to the peers on reverse GET path (or NULL if not recorded)
1650 * @param put_path NULL-terminated array of pointers
1651 * to the peers on the PUT path (or NULL if not recorded)
1652 * @param type type of the result
1653 * @param size number of bytes in data
1654 * @param data pointer to the result data
1657 get_result_iterator (void *cls,
1658 struct GNUNET_TIME_Absolute exp,
1659 const GNUNET_HashCode * key,
1660 const struct GNUNET_PeerIdentity * const *get_path,
1661 const struct GNUNET_PeerIdentity * const *put_path,
1662 enum GNUNET_BLOCK_Type type,
1666 struct TestGetContext *test_get = cls;
1668 if (test_get->succeeded == GNUNET_YES)
1669 return; /* Get has already been successful, probably ending now */
1671 if (0 != memcmp(&known_keys[test_get->uid], key, sizeof (GNUNET_HashCode))) /* || (0 != memcmp(original_data, data, sizeof(original_data))))*/
1674 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Key or data is not the same as was inserted!\n");
1679 test_get->succeeded = GNUNET_YES;
1682 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Received correct GET response!\n");
1684 GNUNET_SCHEDULER_cancel(test_get->disconnect_task);
1685 GNUNET_SCHEDULER_add_continuation(&get_stop_task, test_get, GNUNET_SCHEDULER_REASON_PREREQ_DONE);
1691 * Set up some data, and call API PUT function
1694 do_get (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1696 struct TestGetContext *test_get = cls;
1700 GNUNET_SCHEDULER_cancel(die_task);
1701 GNUNET_SCHEDULER_add_now(&finish_testing, NULL);
1704 if (test_get == NULL)
1705 return; /* End of the list */
1707 /* Set this here in case we are re-running gets */
1708 test_get->succeeded = GNUNET_NO;
1710 if (GNUNET_YES != GNUNET_TESTING_daemon_running(test_get->daemon)) /* If the peer has been churned off, don't try issuing request from it! */
1712 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Peer we should issue get request from is down, skipping.\n");
1714 GNUNET_SCHEDULER_add_now (&get_stop_finished, test_get);
1715 GNUNET_SCHEDULER_add_now (&do_get, test_get->next);
1719 /* Check if more gets are outstanding than should be */
1720 if (outstanding_gets > max_outstanding_gets)
1722 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MILLISECONDS, 200), &do_get, test_get);
1726 /* Connect to the first peer's DHT */
1727 test_get->dht_handle = GNUNET_DHT_connect(test_get->daemon->cfg, 10);
1728 GNUNET_assert(test_get->dht_handle != NULL);
1731 /* Insert the data at the first peer */
1732 test_get->get_handle = GNUNET_DHT_get_start(test_get->dht_handle,
1734 GNUNET_BLOCK_TYPE_TEST,
1735 &known_keys[test_get->uid],
1739 &get_result_iterator,
1743 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Starting get for uid %u from peer %s\n",
1745 test_get->daemon->shortname);
1747 test_get->disconnect_task = GNUNET_SCHEDULER_add_delayed(get_timeout, &get_stop_task, test_get);
1749 /* Schedule the next request in the linked list of get requests */
1750 GNUNET_SCHEDULER_add_now (&do_get, test_get->next);
1754 * Called when the PUT request has been transmitted to the DHT service.
1755 * Schedule the GET request for some time in the future.
1758 put_finished (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1760 struct TestPutContext *test_put = cls;
1761 struct TopologyIteratorContext *topo_ctx;
1765 if (tc->reason == GNUNET_SCHEDULER_REASON_TIMEOUT)
1766 fprintf(stderr, "PUT Request failed!\n");
1768 /* Reset the daemon (which peer to insert at) for later put request iterations */
1769 if (replicate_same == GNUNET_NO)
1770 test_put->daemon = GNUNET_TESTING_daemon_get(pg, GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers));
1772 GNUNET_SCHEDULER_cancel(test_put->disconnect_task);
1773 test_put->disconnect_task = GNUNET_SCHEDULER_add_now(&put_disconnect_task, test_put);
1774 if (GNUNET_YES == update_meter(put_meter))
1776 GNUNET_assert(outstanding_puts == 0);
1777 GNUNET_SCHEDULER_cancel (die_task);
1778 if (dhtlog_handle != NULL)
1780 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
1781 topo_ctx->cont = &do_get;
1782 topo_ctx->cls = all_gets;
1783 topo_ctx->timeout = DEFAULT_GET_TIMEOUT;
1784 topo_ctx->peers_seen = GNUNET_CONTAINER_multihashmap_create(num_peers);
1785 die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_add(GNUNET_TIME_relative_add(DEFAULT_GET_TIMEOUT, all_get_timeout), DEFAULT_TOPOLOGY_CAPTURE_TIMEOUT),
1786 &end_badly, "from do gets (put finished)");
1787 GNUNET_SCHEDULER_add_now(&capture_current_topology, topo_ctx);
1791 fprintf(stderr, "Scheduling die task (put finished)\n");
1792 die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_add(DEFAULT_GET_TIMEOUT, all_get_timeout),
1793 &end_badly, "from do gets (put finished)");
1794 GNUNET_SCHEDULER_add_delayed(DEFAULT_GET_TIMEOUT, &do_get, all_gets);
1801 * Set up some data, and call API PUT function
1804 do_put (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1806 struct TestPutContext *test_put = cls;
1807 char data[test_data_size]; /* Made up data to store */
1811 if (test_put == NULL)
1812 return; /* End of list */
1814 if (GNUNET_YES != GNUNET_TESTING_daemon_running(test_put->daemon)) /* If the peer has been churned off, don't try issuing request from it! */
1816 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Peer we should issue put request at is down, skipping.\n");
1817 update_meter(put_meter);
1818 GNUNET_SCHEDULER_add_now (&do_put, test_put->next);
1822 for (i = 0; i < sizeof(data); i++)
1824 memset(&data[i], GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, UINT32_MAX), 1);
1827 if (outstanding_puts > max_outstanding_puts)
1829 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MILLISECONDS, 200), &do_put, test_put);
1834 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Starting put for uid %u from peer %s\n",
1836 test_put->daemon->shortname);
1838 test_put->dht_handle = GNUNET_DHT_connect(test_put->daemon->cfg, 10);
1840 GNUNET_assert(test_put->dht_handle != NULL);
1842 GNUNET_DHT_put(test_put->dht_handle,
1843 &known_keys[test_put->uid],
1845 GNUNET_BLOCK_TYPE_TEST,
1847 GNUNET_TIME_UNIT_FOREVER_ABS,
1849 &put_finished, test_put);
1850 test_put->disconnect_task = GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_get_forever(), &put_disconnect_task, test_put);
1851 rand = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, 2);
1852 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, rand), &do_put, test_put->next);
1856 schedule_find_peer_requests (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc);
1859 * Given a number of total peers and a bucket size, estimate the number of
1860 * connections in a perfect kademlia topology.
1862 static unsigned int connection_estimate(unsigned int peer_count, unsigned int bucket_size)
1865 unsigned int filled;
1869 while (i >= bucket_size)
1874 filled++; /* Add one filled bucket to account for one "half full" and some miscellaneous */
1875 return filled * bucket_size * peer_count;
1881 * Callback for iterating over all the peer connections of a peer group.
1884 count_peers_cb (void *cls,
1885 const struct GNUNET_PeerIdentity *first,
1886 const struct GNUNET_PeerIdentity *second,
1887 struct GNUNET_TIME_Relative latency,
1891 struct FindPeerContext *find_peer_context = cls;
1892 if ((first != NULL) && (second != NULL))
1894 add_new_connection(find_peer_context, first, second);
1895 find_peer_context->current_peers++;
1899 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Peer count finished (%u connections), %u new peers, connection estimate %u (double %u)\n",
1900 find_peer_context->current_peers,
1901 find_peer_context->current_peers - find_peer_context->previous_peers,
1902 connection_estimate(num_peers, DEFAULT_BUCKET_SIZE),
1903 2 * connection_estimate(num_peers, DEFAULT_BUCKET_SIZE));
1905 if ((find_peer_context->last_sent > 8) &&
1906 (find_peer_context->current_peers - find_peer_context->previous_peers > FIND_PEER_THRESHOLD) &&
1907 (find_peer_context->current_peers < 2 * connection_estimate(num_peers, DEFAULT_BUCKET_SIZE)) &&
1908 (GNUNET_TIME_absolute_get_remaining(find_peer_context->endtime).rel_value > 0))
1910 GNUNET_SCHEDULER_add_now(&schedule_find_peer_requests, find_peer_context);
1914 GNUNET_CONTAINER_multihashmap_iterate(find_peer_context->peer_hash, &remove_peer_count, find_peer_context);
1915 GNUNET_CONTAINER_multihashmap_destroy(find_peer_context->peer_hash);
1916 GNUNET_CONTAINER_heap_destroy(find_peer_context->peer_min_heap);
1917 GNUNET_free(find_peer_context);
1918 fprintf(stderr, "Not sending any more find peer requests.\n");
1925 * Set up a single find peer request for each peer in the topology. Do this
1926 * until the settle time is over, limited by the number of outstanding requests
1927 * and the time allowed for each one!
1930 schedule_find_peer_requests (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1932 struct FindPeerContext *find_peer_ctx = cls;
1933 struct TestFindPeer *test_find_peer;
1934 struct PeerCount *peer_count;
1938 if (find_peer_ctx->previous_peers == 0) /* First time, go slowly */
1939 find_peer_ctx->total = 1;
1940 else if (find_peer_ctx->current_peers - find_peer_ctx->previous_peers > MAX_FIND_PEER_CUTOFF) /* Found LOTS of peers, still go slowly */
1941 find_peer_ctx->total = find_peer_ctx->last_sent - (find_peer_ctx->last_sent / 8);
1943 else if (find_peer_ctx->current_peers - find_peer_ctx->previous_peers < MIN_FIND_PEER_CUTOFF)
1944 find_peer_ctx->total = find_peer_ctx->last_sent * 2; /* FIXME: always multiply by two (unless above max?) */
1946 find_peer_ctx->total = find_peer_ctx->last_sent;
1949 find_peer_ctx->total = find_peer_ctx->last_sent * 2;
1952 if (find_peer_ctx->total > max_outstanding_find_peers)
1953 find_peer_ctx->total = max_outstanding_find_peers;
1955 find_peer_ctx->last_sent = find_peer_ctx->total;
1956 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));
1958 find_peer_offset = GNUNET_TIME_relative_divide(find_peer_delay, find_peer_ctx->total);
1959 for (i = 0; i < find_peer_ctx->total; i++)
1961 test_find_peer = GNUNET_malloc(sizeof(struct TestFindPeer));
1962 if (find_peer_ctx->previous_peers == 0) /* If we haven't sent any requests, yet choose random peers */
1965 * Attempt to spread find peer requests across even sections of the peer address
1966 * space. Choose basically 1 peer in every num_peers / max_outstanding_requests
1967 * each time, then offset it by a randomish value.
1969 * For instance, if num_peers is 100 and max_outstanding is 10, first chosen peer
1970 * will be between 0 - 10, second between 10 - 20, etc.
1972 random = (num_peers / find_peer_ctx->total) * i;
1973 random = random + GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, (num_peers / find_peer_ctx->total));
1974 if (random >= num_peers)
1976 random = random - num_peers;
1979 random = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers);
1981 test_find_peer->daemon = GNUNET_TESTING_daemon_get(pg, random);
1983 else /* If we have sent requests, choose peers with a low number of connections to send requests from */
1985 peer_count = GNUNET_CONTAINER_heap_remove_root(find_peer_ctx->peer_min_heap);
1986 GNUNET_CONTAINER_multihashmap_remove(find_peer_ctx->peer_hash, &peer_count->peer_id.hashPubKey, peer_count);
1987 test_find_peer->daemon = GNUNET_TESTING_daemon_get_by_id(pg, &peer_count->peer_id);
1988 GNUNET_assert(test_find_peer->daemon != NULL);
1991 test_find_peer->find_peer_context = find_peer_ctx;
1992 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_multiply(find_peer_offset, i), &send_find_peer_request, test_find_peer);
1995 if ((find_peer_ctx->peer_hash == NULL) && (find_peer_ctx->peer_min_heap == NULL))
1997 find_peer_ctx->peer_hash = GNUNET_CONTAINER_multihashmap_create(num_peers);
1998 find_peer_ctx->peer_min_heap = GNUNET_CONTAINER_heap_create(GNUNET_CONTAINER_HEAP_ORDER_MIN);
2002 GNUNET_CONTAINER_multihashmap_iterate(find_peer_ctx->peer_hash, &remove_peer_count, find_peer_ctx);
2003 GNUNET_CONTAINER_multihashmap_destroy(find_peer_ctx->peer_hash);
2004 find_peer_ctx->peer_hash = GNUNET_CONTAINER_multihashmap_create(num_peers);
2007 GNUNET_assert(0 == GNUNET_CONTAINER_multihashmap_size(find_peer_ctx->peer_hash));
2008 GNUNET_assert(0 == GNUNET_CONTAINER_heap_get_size(find_peer_ctx->peer_min_heap));
2013 * Set up some all of the put and get operations we want
2014 * to do. Allocate data structure for each, add to list,
2015 * then call actual insert functions.
2018 setup_puts_and_gets (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
2021 uint32_t temp_daemon;
2022 struct TestPutContext *test_put;
2023 struct TestGetContext *test_get;
2025 int remember[num_puts][num_peers];
2026 memset(&remember, 0, sizeof(int) * num_puts * num_peers);
2028 known_keys = GNUNET_malloc(sizeof(GNUNET_HashCode) * num_puts);
2029 for (i = 0; i < num_puts; i++)
2031 test_put = GNUNET_malloc(sizeof(struct TestPutContext));
2033 GNUNET_CRYPTO_hash_create_random (GNUNET_CRYPTO_QUALITY_WEAK, &known_keys[i]);
2034 temp_daemon = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers);
2035 test_put->daemon = GNUNET_TESTING_daemon_get(pg, temp_daemon);
2036 test_put->next = all_puts;
2037 all_puts = test_put;
2040 for (i = 0; i < num_gets; i++)
2042 test_get = GNUNET_malloc(sizeof(struct TestGetContext));
2043 test_get->uid = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_puts);
2045 while (remember[test_get->uid][temp_daemon] == 1)
2046 temp_daemon = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers);
2047 remember[test_get->uid][temp_daemon] = 1;
2049 test_get->daemon = GNUNET_TESTING_daemon_get(pg, GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers));
2050 test_get->next = all_gets;
2051 all_gets = test_get;
2054 /*GNUNET_SCHEDULER_cancel (die_task);*/
2055 die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, num_puts * 2),
2056 &end_badly, "from do puts");
2057 GNUNET_SCHEDULER_add_now (&do_put, all_puts);
2062 * Set up some all of the put and get operations we want
2063 * to do. Allocate data structure for each, add to list,
2064 * then call actual insert functions.
2067 continue_puts_and_gets (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
2071 struct TopologyIteratorContext *topo_ctx;
2072 struct FindPeerContext *find_peer_context;
2073 if (dhtlog_handle != NULL)
2075 if (settle_time >= 180 * 2)
2076 max = (settle_time / 180) - 2;
2079 for (i = 1; i < max; i++)
2081 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
2082 topo_ctx->current_iteration = i;
2083 topo_ctx->total_iterations = max;
2084 topo_ctx->peers_seen = GNUNET_CONTAINER_multihashmap_create(num_peers);
2085 //fprintf(stderr, "scheduled topology iteration in %d minutes\n", i);
2086 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MINUTES, i * 3), &capture_current_topology, topo_ctx);
2088 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
2089 topo_ctx->cont = &setup_puts_and_gets;
2090 topo_ctx->peers_seen = GNUNET_CONTAINER_multihashmap_create(num_peers);
2091 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, (settle_time + 90)), &capture_current_topology, topo_ctx);
2094 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, (settle_time + 90)), &setup_puts_and_gets, NULL);
2096 if (dhtlog_handle != NULL)
2097 dhtlog_handle->insert_round(DHT_ROUND_NORMAL, rounds_finished);
2099 if (GNUNET_YES == do_find_peer)
2101 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Scheduling find peer requests during \"settle\" time.\n");
2102 find_peer_context = GNUNET_malloc(sizeof(struct FindPeerContext));
2103 find_peer_context->count_peers_cb = &count_peers_cb;
2104 find_peer_context->endtime = GNUNET_TIME_relative_to_absolute(GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, settle_time));
2105 GNUNET_SCHEDULER_add_now(&schedule_find_peer_requests, find_peer_context);
2109 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Assuming automatic DHT find peer requests.\n");
2114 * Task to release DHT handles
2117 malicious_disconnect_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
2119 struct MaliciousContext *ctx = cls;
2120 outstanding_malicious--;
2121 malicious_completed++;
2122 ctx->disconnect_task = GNUNET_SCHEDULER_NO_TASK;
2123 GNUNET_DHT_disconnect(ctx->dht_handle);
2124 ctx->dht_handle = NULL;
2127 if (malicious_completed == malicious_getters + malicious_putters + malicious_droppers)
2129 GNUNET_SCHEDULER_cancel(die_task);
2130 fprintf(stderr, "Finished setting all malicious peers up, calling continuation!\n");
2131 if (dhtlog_handle != NULL)
2132 GNUNET_SCHEDULER_add_now (&continue_puts_and_gets, NULL);
2134 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, settle_time),
2135 &continue_puts_and_gets, NULL);
2141 * Task to release DHT handles
2144 malicious_done_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
2146 struct MaliciousContext *ctx = cls;
2147 GNUNET_SCHEDULER_cancel(ctx->disconnect_task);
2148 GNUNET_SCHEDULER_add_now(&malicious_disconnect_task, ctx);
2152 * Set up some data, and call API PUT function
2155 set_malicious (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
2157 struct MaliciousContext *ctx = cls;
2159 if (outstanding_malicious > DEFAULT_MAX_OUTSTANDING_GETS)
2161 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MILLISECONDS, 100), &set_malicious, ctx);
2165 if (ctx->dht_handle == NULL)
2167 ctx->dht_handle = GNUNET_DHT_connect(ctx->daemon->cfg, 1);
2168 outstanding_malicious++;
2171 GNUNET_assert(ctx->dht_handle != NULL);
2175 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Setting peer %s malicious type %d\n",
2176 ctx->daemon->shortname, ctx->malicious_type);
2179 switch (ctx->malicious_type)
2181 case GNUNET_MESSAGE_TYPE_DHT_MALICIOUS_GET:
2182 GNUNET_DHT_set_malicious_getter(ctx->dht_handle, malicious_get_frequency);
2183 GNUNET_SCHEDULER_add_now (&malicious_done_task, ctx);
2185 case GNUNET_MESSAGE_TYPE_DHT_MALICIOUS_PUT:
2186 GNUNET_DHT_set_malicious_putter(ctx->dht_handle, malicious_put_frequency);
2187 GNUNET_SCHEDULER_add_now (&malicious_done_task, ctx);
2189 case GNUNET_MESSAGE_TYPE_DHT_MALICIOUS_DROP:
2190 GNUNET_DHT_set_malicious_dropper(ctx->dht_handle);
2191 GNUNET_SCHEDULER_add_now (&malicious_done_task, ctx);
2197 ctx->disconnect_task = GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_UNIT_FOREVER_REL,
2198 &malicious_disconnect_task, ctx);
2202 * Select randomly from set of known peers,
2203 * set the desired number of peers to the
2204 * proper malicious types.
2207 setup_malicious_peers (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
2209 struct MaliciousContext *ctx;
2211 uint32_t temp_daemon;
2213 for (i = 0; i < malicious_getters; i++)
2215 ctx = GNUNET_malloc(sizeof(struct MaliciousContext));
2216 temp_daemon = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers);
2217 ctx->daemon = GNUNET_TESTING_daemon_get(pg, temp_daemon);
2218 ctx->malicious_type = GNUNET_MESSAGE_TYPE_DHT_MALICIOUS_GET;
2219 GNUNET_SCHEDULER_add_now (&set_malicious, ctx);
2223 for (i = 0; i < malicious_putters; i++)
2225 ctx = GNUNET_malloc(sizeof(struct MaliciousContext));
2226 temp_daemon = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers);
2227 ctx->daemon = GNUNET_TESTING_daemon_get(pg, temp_daemon);
2228 ctx->malicious_type = GNUNET_MESSAGE_TYPE_DHT_MALICIOUS_PUT;
2229 GNUNET_SCHEDULER_add_now (&set_malicious, ctx);
2233 for (i = 0; i < malicious_droppers; i++)
2235 ctx = GNUNET_malloc(sizeof(struct MaliciousContext));
2236 temp_daemon = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers);
2237 ctx->daemon = GNUNET_TESTING_daemon_get(pg, temp_daemon);
2238 ctx->malicious_type = GNUNET_MESSAGE_TYPE_DHT_MALICIOUS_DROP;
2239 GNUNET_SCHEDULER_add_now (&set_malicious, ctx);
2243 * If we have any malicious peers to set up,
2244 * the malicious callback should call continue_gets_and_puts
2246 if (malicious_getters + malicious_putters + malicious_droppers > 0)
2248 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Giving malicious set tasks some time before starting testing!\n");
2249 die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, (malicious_getters + malicious_putters + malicious_droppers) * 2),
2250 &end_badly, "from set malicious");
2252 else /* Otherwise, continue testing */
2254 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Scheduling continue_puts_and_gets now!\n");
2255 GNUNET_SCHEDULER_add_now (&continue_puts_and_gets, NULL);
2260 * This function is called whenever a connection attempt is finished between two of
2261 * the started peers (started with GNUNET_TESTING_daemons_start). The total
2262 * number of times this function is called should equal the number returned
2263 * from the GNUNET_TESTING_connect_topology call.
2265 * The emsg variable is NULL on success (peers connected), and non-NULL on
2266 * failure (peers failed to connect).
2269 topology_callback (void *cls,
2270 const struct GNUNET_PeerIdentity *first,
2271 const struct GNUNET_PeerIdentity *second,
2273 const struct GNUNET_CONFIGURATION_Handle *first_cfg,
2274 const struct GNUNET_CONFIGURATION_Handle *second_cfg,
2275 struct GNUNET_TESTING_Daemon *first_daemon,
2276 struct GNUNET_TESTING_Daemon *second_daemon,
2279 struct TopologyIteratorContext *topo_ctx;
2282 total_connections++;
2284 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "connected peer %s to peer %s, distance %u\n",
2285 first_daemon->shortname,
2286 second_daemon->shortname,
2292 failed_connections++;
2294 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Failed to connect peer %s to peer %s with error :\n%s\n",
2295 first_daemon->shortname,
2296 second_daemon->shortname, emsg);
2300 GNUNET_assert(peer_connect_meter != NULL);
2301 if (GNUNET_YES == update_meter(peer_connect_meter))
2304 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2305 "Created %d total connections, which is our target number! Starting next phase of testing.\n",
2308 if (dhtlog_handle != NULL)
2310 dhtlog_handle->update_connections (trialuid, total_connections);
2311 dhtlog_handle->insert_topology(expected_connections);
2314 GNUNET_SCHEDULER_cancel (die_task);
2315 /*die_task = GNUNET_SCHEDULER_add_delayed (DEFAULT_TIMEOUT,
2316 &end_badly, "from setup puts/gets");*/
2317 if ((dhtlog_handle != NULL) && (settle_time > 0))
2319 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
2320 topo_ctx->cont = &setup_malicious_peers;
2321 topo_ctx->peers_seen = GNUNET_CONTAINER_multihashmap_create(num_peers);
2322 //topo_ctx->cont = &continue_puts_and_gets;
2323 GNUNET_SCHEDULER_add_now(&capture_current_topology, topo_ctx);
2327 GNUNET_SCHEDULER_add_now(&setup_malicious_peers, NULL);
2328 /*GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, settle_time),
2329 &continue_puts_and_gets, NULL);*/
2332 else if (total_connections + failed_connections == expected_connections)
2334 GNUNET_SCHEDULER_cancel (die_task);
2335 die_task = GNUNET_SCHEDULER_add_now (&end_badly, "from topology_callback (too many failed connections)");
2340 peers_started_callback (void *cls,
2341 const struct GNUNET_PeerIdentity *id,
2342 const struct GNUNET_CONFIGURATION_Handle *cfg,
2343 struct GNUNET_TESTING_Daemon *d, const char *emsg)
2347 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Failed to start daemon with error: `%s'\n",
2351 GNUNET_assert (id != NULL);
2354 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Started daemon %llu out of %llu\n",
2355 (num_peers - peers_left) + 1, num_peers);
2360 if (GNUNET_YES == update_meter(peer_start_meter))
2363 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2364 "All %d daemons started, now connecting peers!\n",
2367 GNUNET_SCHEDULER_cancel (die_task);
2369 expected_connections = UINT_MAX;
2370 if ((pg != NULL) && (peers_left == 0))
2372 expected_connections = GNUNET_TESTING_connect_topology (pg, connect_topology, connect_topology_option, connect_topology_option_modifier, NULL, NULL);
2374 peer_connect_meter = create_meter(expected_connections, "Peer connection ", GNUNET_YES);
2375 fprintf(stderr, "Have %d expected connections\n", expected_connections);
2378 if (expected_connections == GNUNET_SYSERR)
2380 die_task = GNUNET_SCHEDULER_add_now (&end_badly, "from connect topology (bad return)");
2383 die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, DEFAULT_CONNECT_TIMEOUT * expected_connections),
2384 &end_badly, "from connect topology (timeout)");
2393 peers_left = num_peers; /* Reset counter */
2394 if (GNUNET_TESTING_create_topology (pg, topology, blacklist_topology, blacklist_transports) != GNUNET_SYSERR)
2397 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2398 "Topology set up, now starting peers!\n");
2400 GNUNET_TESTING_daemons_continue_startup(pg);
2404 GNUNET_SCHEDULER_cancel (die_task);
2405 die_task = GNUNET_SCHEDULER_add_now (&end_badly, "from create topology (bad return)");
2407 GNUNET_free_non_null(blacklist_transports);
2408 GNUNET_SCHEDULER_cancel (die_task);
2409 die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(seconds_per_peer_start, num_peers),
2410 &end_badly, "from continue startup (timeout)");
2414 * Callback indicating that the hostkey was created for a peer.
2417 * @param id the peer identity
2418 * @param d the daemon handle (pretty useless at this point, remove?)
2419 * @param emsg non-null on failure
2422 hostkey_callback (void *cls,
2423 const struct GNUNET_PeerIdentity *id,
2424 struct GNUNET_TESTING_Daemon *d,
2429 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Hostkey callback received error: %s\n", emsg);
2433 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2434 "Hostkey (%d/%d) created for peer `%s'\n",
2435 num_peers - peers_left, num_peers, GNUNET_i2s(id));
2439 if (GNUNET_YES == update_meter(hostkey_meter))
2442 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2443 "All %d hostkeys created, now creating topology!\n",
2446 GNUNET_SCHEDULER_cancel (die_task);
2447 /* Set up task in case topology creation doesn't finish
2448 * within a reasonable amount of time */
2449 die_task = GNUNET_SCHEDULER_add_delayed (DEFAULT_TOPOLOGY_TIMEOUT,
2450 &end_badly, "from create_topology");
2451 GNUNET_SCHEDULER_add_now(&create_topology, NULL);
2460 const char *cfgfile, const struct GNUNET_CONFIGURATION_Handle *cfg)
2463 struct GNUNET_DHTLOG_TrialInfo trial_info;
2464 struct GNUNET_TESTING_Host *hosts;
2465 struct GNUNET_TESTING_Host *temphost;
2466 struct GNUNET_TESTING_Host *tempnext;
2468 char *connect_topology_str;
2469 char *blacklist_topology_str;
2470 char *connect_topology_option_str;
2471 char *connect_topology_option_modifier_string;
2473 char *topology_percentage_str;
2474 float topology_percentage;
2475 char *topology_probability_str;
2477 float topology_probability;
2478 unsigned long long temp_config_number;
2481 int strict_kademlia;
2485 char *churn_filename;
2491 rounds_finished = 0;
2492 memset(&trial_info, 0, sizeof(struct GNUNET_DHTLOG_TrialInfo));
2493 /* Get path from configuration file */
2494 if (GNUNET_YES != GNUNET_CONFIGURATION_get_value_string(cfg, "paths", "servicehome", &test_directory))
2501 * Get DHT specific testing options.
2503 if ((GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht_testing", "mysql_logging")) ||
2504 (GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht_testing", "mysql_logging_extended")))
2506 dhtlog_handle = GNUNET_DHTLOG_connect(cfg);
2507 if (dhtlog_handle == NULL)
2509 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2510 "Could not connect to mysql server for logging, will NOT log dht operations!");
2516 stop_closest = GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht", "stop_on_closest");
2517 if (stop_closest == GNUNET_SYSERR)
2518 stop_closest = GNUNET_NO;
2520 stop_found = GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht", "stop_found");
2521 if (stop_found == GNUNET_SYSERR)
2522 stop_found = GNUNET_NO;
2524 strict_kademlia = GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht", "strict_kademlia");
2525 if (strict_kademlia == GNUNET_SYSERR)
2526 strict_kademlia = GNUNET_NO;
2529 GNUNET_CONFIGURATION_get_value_string (cfg, "dht_testing", "comment",
2531 trialmessage = NULL;
2534 /** Check for a churn file to do churny simulation */
2536 GNUNET_CONFIGURATION_get_value_string(cfg, "dht_testing", "churn_file",
2539 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Reading churn data from %s\n", churn_filename);
2540 if (GNUNET_OK != GNUNET_DISK_file_test (churn_filename))
2542 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Error reading churn file!\n");
2545 if ((0 != STAT (churn_filename, &frstat)) || (frstat.st_size == 0))
2547 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
2548 "Could not open file specified for churn data, ending test!");
2550 GNUNET_free_non_null(trialmessage);
2551 GNUNET_free(churn_filename);
2555 churn_data = GNUNET_malloc_large (frstat.st_size);
2556 GNUNET_assert(churn_data != NULL);
2557 if (frstat.st_size !=
2558 GNUNET_DISK_fn_read (churn_filename, churn_data, frstat.st_size))
2560 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
2561 "Could not read file %s specified for churn, ending test!", churn_filename);
2562 GNUNET_free (churn_filename);
2563 GNUNET_free (churn_data);
2564 GNUNET_free_non_null(trialmessage);
2568 GNUNET_free_non_null(churn_filename);
2572 /* Read the first line */
2573 while (count < frstat.st_size)
2576 if (((churn_data[count] == '\n')) && (buf != &churn_data[count]))
2578 churn_data[count] = '\0';
2579 if (1 != sscanf(buf, "%u", &churn_rounds))
2581 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Failed to read number of rounds from %s, ending test!\n", churn_filename);
2582 GNUNET_free_non_null(trialmessage);
2583 GNUNET_free(churn_filename);
2587 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Read %u rounds from churn file\n", churn_rounds);
2588 buf = &churn_data[count + 1];
2589 churn_array = GNUNET_malloc(sizeof(unsigned int) * churn_rounds);
2590 break; /* Done with this part */
2594 if (GNUNET_OK != GNUNET_CONFIGURATION_get_value_number(cfg, "dht_testing", "churns_per_round", &churns_per_round))
2596 churns_per_round = (unsigned long long)churn_rounds;
2600 while ((count < frstat.st_size) && (line_number < churn_rounds))
2603 if (((churn_data[count] == '\n')) && (buf != &churn_data[count]))
2605 churn_data[count] = '\0';
2607 ret = sscanf(buf, "%u", &churn_array[line_number]);
2610 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Read %u peers in round %u\n", churn_array[line_number], line_number);
2615 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Error reading line `%s' in hostfile\n", buf);
2616 buf = &churn_data[count + 1];
2619 buf = &churn_data[count + 1];
2621 else if (churn_data[count] == '\n') /* Blank line */
2622 buf = &churn_data[count + 1];
2625 GNUNET_free_non_null(churn_data);
2627 /** Check for a hostfile containing user@host:port triples */
2629 GNUNET_CONFIGURATION_get_value_string (cfg, "testing", "hostfile",
2635 if (hostfile != NULL)
2637 if (GNUNET_OK != GNUNET_DISK_file_test (hostfile))
2638 GNUNET_DISK_fn_write (hostfile, NULL, 0, GNUNET_DISK_PERM_USER_READ
2639 | GNUNET_DISK_PERM_USER_WRITE);
2640 if ((0 != STAT (hostfile, &frstat)) || (frstat.st_size == 0))
2642 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
2643 "Could not open file specified for host list, ending test!");
2645 GNUNET_free_non_null(trialmessage);
2646 GNUNET_free(hostfile);
2650 data = GNUNET_malloc_large (frstat.st_size);
2651 GNUNET_assert(data != NULL);
2652 if (frstat.st_size !=
2653 GNUNET_DISK_fn_read (hostfile, data, frstat.st_size))
2655 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
2656 "Could not read file %s specified for host list, ending test!", hostfile);
2657 GNUNET_free (hostfile);
2659 GNUNET_free_non_null(trialmessage);
2663 GNUNET_free_non_null(hostfile);
2667 while (count < frstat.st_size)
2670 /* if (((data[count] == '\n') || (data[count] == '\0')) && (buf != &data[count]))*/
2671 if (((data[count] == '\n')) && (buf != &data[count]))
2674 temphost = GNUNET_malloc(sizeof(struct GNUNET_TESTING_Host));
2675 ret = sscanf(buf, "%a[a-zA-Z0-9]@%a[a-zA-Z0-9.]:%hd", &temphost->username, &temphost->hostname, &temphost->port);
2678 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Successfully read host %s, port %d and user %s from file\n", temphost->hostname, temphost->port, temphost->username);
2682 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Error reading line `%s' in hostfile\n", buf);
2683 GNUNET_free(temphost);
2684 buf = &data[count + 1];
2687 /* temphost->hostname = buf; */
2688 temphost->next = hosts;
2690 buf = &data[count + 1];
2692 else if ((data[count] == '\n') || (data[count] == '\0'))
2693 buf = &data[count + 1];
2698 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "malicious_getters",
2699 &malicious_getters))
2700 malicious_getters = 0;
2703 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "malicious_putters",
2704 &malicious_putters))
2705 malicious_putters = 0;
2708 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "malicious_droppers",
2709 &malicious_droppers))
2710 malicious_droppers = 0;
2713 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "settle_time",
2717 if (GNUNET_SYSERR ==
2718 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "num_puts",
2720 num_puts = num_peers;
2722 if (GNUNET_SYSERR ==
2723 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "num_gets",
2725 num_gets = num_peers;
2728 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "find_peer_delay",
2729 &temp_config_number))
2730 find_peer_delay = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_config_number);
2732 find_peer_delay = DEFAULT_FIND_PEER_DELAY;
2735 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "concurrent_find_peers",
2736 &temp_config_number))
2737 max_outstanding_find_peers = temp_config_number;
2739 max_outstanding_find_peers = DEFAULT_MAX_OUTSTANDING_FIND_PEERS;
2742 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "get_timeout",
2743 &temp_config_number))
2744 get_timeout = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_config_number);
2746 get_timeout = DEFAULT_GET_TIMEOUT;
2749 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "concurrent_puts",
2750 &temp_config_number))
2751 max_outstanding_puts = temp_config_number;
2753 max_outstanding_puts = DEFAULT_MAX_OUTSTANDING_PUTS;
2756 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "concurrent_gets",
2757 &temp_config_number))
2758 max_outstanding_gets = temp_config_number;
2760 max_outstanding_gets = DEFAULT_MAX_OUTSTANDING_GETS;
2763 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "timeout",
2764 &temp_config_number))
2765 all_get_timeout = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_config_number);
2767 all_get_timeout.rel_value = get_timeout.rel_value * num_gets;
2770 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "get_delay",
2771 &temp_config_number))
2772 get_delay = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_config_number);
2774 get_delay = DEFAULT_GET_DELAY;
2777 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "put_delay",
2778 &temp_config_number))
2779 put_delay = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_config_number);
2781 put_delay = DEFAULT_PUT_DELAY;
2784 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "peer_start_timeout",
2785 &temp_config_number))
2786 seconds_per_peer_start = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_config_number);
2788 seconds_per_peer_start = DEFAULT_SECONDS_PER_PEER_START;
2791 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "data_size",
2792 &temp_config_number))
2793 test_data_size = temp_config_number;
2795 test_data_size = DEFAULT_TEST_DATA_SIZE;
2798 * Get testing related options.
2800 if (GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno(cfg, "DHT_TESTING", "REPLICATE_SAME"))
2801 replicate_same = GNUNET_YES;
2804 * Get testing related options.
2806 if (GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno(cfg, "DHT_TESTING", "GET_FROM_SAME"))
2807 get_from_same = GNUNET_YES;
2810 if (GNUNET_NO == GNUNET_CONFIGURATION_get_value_time (cfg, "DHT_TESTING",
2811 "MALICIOUS_GET_FREQUENCY",
2812 &malicious_get_frequency))
2813 malicious_get_frequency = DEFAULT_MALICIOUS_GET_FREQUENCY;
2816 if (GNUNET_NO == GNUNET_CONFIGURATION_get_value_time (cfg, "DHT_TESTING",
2817 "MALICIOUS_PUT_FREQUENCY",
2818 &malicious_put_frequency))
2819 malicious_put_frequency = DEFAULT_MALICIOUS_PUT_FREQUENCY;
2822 /* The normal behavior of the DHT is to do find peer requests
2823 * on its own. Only if this is explicitly turned off should
2824 * the testing driver issue find peer requests (even though
2825 * this is likely the default when testing).
2828 GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht",
2831 do_find_peer = GNUNET_YES;
2835 GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht",
2838 in_dht_replication = GNUNET_YES;
2841 if (GNUNET_YES != GNUNET_CONFIGURATION_get_value_number (cfg, "DHT_TESTING",
2848 if (GNUNET_YES == GNUNET_CONFIGURATION_get_value_number (cfg, "DHT_TESTING",
2850 &temp_config_number))
2852 find_peer_delay = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_config_number);
2855 find_peer_delay = DEFAULT_FIND_PEER_DELAY;
2857 if (GNUNET_YES != GNUNET_CONFIGURATION_get_value_number(cfg, "DHT_TESTING", "ROUND_DELAY", &round_delay))
2860 if (GNUNET_NO == GNUNET_CONFIGURATION_get_value_number (cfg, "DHT_TESTING",
2861 "OUTSTANDING_FIND_PEERS",
2862 &max_outstanding_find_peers))
2863 max_outstanding_find_peers = DEFAULT_MAX_OUTSTANDING_FIND_PEERS;
2865 if (GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht", "strict_kademlia"))
2866 max_outstanding_find_peers = max_outstanding_find_peers * 1;
2868 find_peer_offset = GNUNET_TIME_relative_divide (find_peer_delay, max_outstanding_find_peers);
2870 if (GNUNET_SYSERR ==
2871 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "num_rounds",
2877 topology_str = NULL;
2879 GNUNET_CONFIGURATION_get_value_string(cfg, "testing", "topology",
2880 &topology_str)) && (GNUNET_NO == GNUNET_TESTING_topology_get(&topology, topology_str)))
2882 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2883 "Invalid topology `%s' given for section %s option %s\n", topology_str, "TESTING", "TOPOLOGY");
2884 topology = GNUNET_TESTING_TOPOLOGY_CLIQUE; /* Defaults to NONE, so set better default here */
2888 GNUNET_CONFIGURATION_get_value_string (cfg, "testing", "percentage",
2889 &topology_percentage_str))
2890 topology_percentage = 0.5;
2893 topology_percentage = atof (topology_percentage_str);
2894 GNUNET_free(topology_percentage_str);
2898 GNUNET_CONFIGURATION_get_value_string (cfg, "testing", "probability",
2899 &topology_probability_str))
2900 topology_probability = 0.5;
2903 topology_probability = atof (topology_probability_str);
2904 GNUNET_free(topology_probability_str);
2908 GNUNET_CONFIGURATION_get_value_string(cfg, "testing", "connect_topology",
2909 &connect_topology_str)) && (GNUNET_NO == GNUNET_TESTING_topology_get(&connect_topology, connect_topology_str)))
2911 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2912 "Invalid connect topology `%s' given for section %s option %s\n", connect_topology_str, "TESTING", "CONNECT_TOPOLOGY");
2914 GNUNET_free_non_null(connect_topology_str);
2917 GNUNET_CONFIGURATION_get_value_string(cfg, "testing", "connect_topology_option",
2918 &connect_topology_option_str)) && (GNUNET_NO == GNUNET_TESTING_topology_option_get(&connect_topology_option, connect_topology_option_str)))
2920 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2921 "Invalid connect topology option `%s' given for section %s option %s\n", connect_topology_option_str, "TESTING", "CONNECT_TOPOLOGY_OPTION");
2922 connect_topology_option = GNUNET_TESTING_TOPOLOGY_OPTION_ALL; /* Defaults to NONE, set to ALL */
2924 GNUNET_free_non_null(connect_topology_option_str);
2927 GNUNET_CONFIGURATION_get_value_string (cfg, "testing", "connect_topology_option_modifier",
2928 &connect_topology_option_modifier_string))
2930 if (sscanf(connect_topology_option_modifier_string, "%lf", &connect_topology_option_modifier) != 1)
2932 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2933 _("Invalid value `%s' for option `%s' in section `%s': expected float\n"),
2934 connect_topology_option_modifier_string,
2935 "connect_topology_option_modifier",
2938 GNUNET_free (connect_topology_option_modifier_string);
2941 if (GNUNET_YES != GNUNET_CONFIGURATION_get_value_string (cfg, "testing", "blacklist_transports",
2942 &blacklist_transports))
2943 blacklist_transports = NULL;
2946 GNUNET_CONFIGURATION_get_value_string(cfg, "testing", "blacklist_topology",
2947 &blacklist_topology_str)) &&
2948 (GNUNET_NO == GNUNET_TESTING_topology_get(&blacklist_topology, blacklist_topology_str)))
2950 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2951 "Invalid topology `%s' given for section %s option %s\n", topology_str, "TESTING", "BLACKLIST_TOPOLOGY");
2953 GNUNET_free_non_null(topology_str);
2954 GNUNET_free_non_null(blacklist_topology_str);
2956 /* Get number of peers to start from configuration */
2957 if (GNUNET_SYSERR ==
2958 GNUNET_CONFIGURATION_get_value_number (cfg, "testing", "num_peers",
2961 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2962 "Number of peers must be specified in section %s option %s\n", topology_str, "TESTING", "NUM_PEERS");
2964 GNUNET_assert(num_peers > 0 && num_peers < ULONG_MAX);
2965 /* Set peers_left so we know when all peers started */
2966 peers_left = num_peers;
2969 /* Set up a task to end testing if peer start fails */
2970 die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(seconds_per_peer_start, num_peers),
2971 &end_badly, "didn't generate all hostkeys within allowed startup time!");
2973 if (dhtlog_handle == NULL)
2974 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2975 "dhtlog_handle is NULL!");
2977 trial_info.other_identifier = (unsigned int)trial_to_run;
2978 trial_info.num_nodes = peers_left;
2979 trial_info.topology = topology;
2980 trial_info.blacklist_topology = blacklist_topology;
2981 trial_info.connect_topology = connect_topology;
2982 trial_info.connect_topology_option = connect_topology_option;
2983 trial_info.connect_topology_option_modifier = connect_topology_option_modifier;
2984 trial_info.topology_percentage = topology_percentage;
2985 trial_info.topology_probability = topology_probability;
2986 trial_info.puts = num_puts;
2987 trial_info.gets = num_gets;
2988 trial_info.concurrent = max_outstanding_gets;
2989 trial_info.settle_time = settle_time;
2990 trial_info.num_rounds = 1;
2991 trial_info.malicious_getters = malicious_getters;
2992 trial_info.malicious_putters = malicious_putters;
2993 trial_info.malicious_droppers = malicious_droppers;
2994 trial_info.malicious_get_frequency = malicious_get_frequency.rel_value;
2995 trial_info.malicious_put_frequency = malicious_put_frequency.rel_value;
2996 trial_info.stop_closest = stop_closest;
2997 trial_info.stop_found = stop_found;
2998 trial_info.strict_kademlia = strict_kademlia;
3000 if (trialmessage != NULL)
3001 trial_info.message = trialmessage;
3003 trial_info.message = "";
3005 if (dhtlog_handle != NULL)
3006 dhtlog_handle->insert_trial(&trial_info);
3008 GNUNET_free_non_null(trialmessage);
3010 hostkey_meter = create_meter(peers_left, "Hostkeys created ", GNUNET_YES);
3011 peer_start_meter = create_meter(peers_left, "Peers started ", GNUNET_YES);
3013 put_meter = create_meter(num_puts, "Puts completed ", GNUNET_YES);
3014 get_meter = create_meter(num_gets, "Gets completed ", GNUNET_YES);
3015 pg = GNUNET_TESTING_daemons_start (cfg,
3017 GNUNET_TIME_relative_multiply(seconds_per_peer_start, num_peers),
3018 &hostkey_callback, NULL,
3019 &peers_started_callback, NULL,
3020 &topology_callback, NULL,
3023 while (temphost != NULL)
3025 tempnext = temphost->next;
3026 GNUNET_free (temphost->username);
3027 GNUNET_free (temphost->hostname);
3028 GNUNET_free (temphost);
3029 temphost = tempnext;
3034 main (int argc, char *argv[])
3037 struct GNUNET_GETOPT_CommandLineOption options[] = {
3038 GNUNET_GETOPT_OPTION_END
3041 ret = GNUNET_PROGRAM_run (argc,
3042 argv, "gnunet-dht-driver", "nohelp",
3043 options, &run, &ok);
3045 if (ret != GNUNET_OK)
3047 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "`gnunet-dht-driver': Failed with error code %d\n", ret);
3051 * Need to remove base directory, subdirectories taken care
3052 * of by the testing framework.
3054 if (GNUNET_DISK_directory_remove (test_directory) != GNUNET_OK)
3056 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Failed to remove testing directory %s\n", test_directory);
3061 /* end of gnunet-dht-driver.c */