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.
30 #include "gnunet_testing_lib.h"
31 #include "gnunet_core_service.h"
32 #include "gnunet_dht_service.h"
37 #define VERBOSE GNUNET_NO
39 /* Timeout for entire driver to run */
40 #define DEFAULT_TIMEOUT GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MINUTES, 5)
42 /* Timeout for waiting for (individual) replies to get requests */
43 #define DEFAULT_GET_TIMEOUT GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 90)
45 #define DEFAULT_TOPOLOGY_CAPTURE_TIMEOUT GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 90)
47 /* Timeout for waiting for gets to be sent to the service */
48 #define DEFAULT_GET_DELAY GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 10)
50 /* Timeout for waiting for puts to be sent to the service */
51 #define DEFAULT_PUT_DELAY GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 10)
53 /* Time to allow a find peer request to take */
54 #define DEFAULT_FIND_PEER_DELAY GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 40)
56 #define DEFAULT_SECONDS_PER_PEER_START GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 45)
58 #define DEFAULT_TEST_DATA_SIZE 8
60 #define DEFAULT_BUCKET_SIZE 4
62 #define FIND_PEER_THRESHOLD 1
64 /* If more than this many peers are added, slow down sending */
65 #define MAX_FIND_PEER_CUTOFF 2500
67 /* If less than this many peers are added, speed up sending */
68 #define MIN_FIND_PEER_CUTOFF 500
70 #define DEFAULT_MAX_OUTSTANDING_PUTS 10
72 #define DEFAULT_MAX_OUTSTANDING_FIND_PEERS 64
74 #define DEFAULT_FIND_PEER_OFFSET GNUNET_TIME_relative_divide (DEFAULT_FIND_PEER_DELAY, DEFAULT_MAX_OUTSTANDING_FIND_PEERS)
76 #define DEFAULT_MAX_OUTSTANDING_GETS 10
78 #define DEFAULT_CONNECT_TIMEOUT 60
80 #define DEFAULT_TOPOLOGY_TIMEOUT GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MINUTES, 8)
82 #define DEFAULT_RECONNECT_ATTEMPTS 8
85 * Default frequency for sending malicious get messages
87 #define DEFAULT_MALICIOUS_GET_FREQUENCY 1000 /* Number of milliseconds */
90 * Default frequency for sending malicious put messages
92 #define DEFAULT_MALICIOUS_PUT_FREQUENCY 1000 /* Default is in milliseconds */
96 struct MaliciousContext
99 * Handle to DHT service (via the API)
101 struct GNUNET_DHT_Handle *dht_handle;
104 * Handle to the peer daemon
106 struct GNUNET_TESTING_Daemon *daemon;
109 * Task for disconnecting DHT handles
111 GNUNET_SCHEDULER_TaskIdentifier disconnect_task;
114 * What type of malicious to set this peer to.
121 /* This is a linked list */
122 struct TestFindPeer *next;
124 /* Handle to the bigger context */
125 struct FindPeerContext *find_peer_context;
128 * Handle to the peer's DHT service (via the API)
130 struct GNUNET_DHT_Handle *dht_handle;
133 * Handle to the peer daemon
135 struct GNUNET_TESTING_Daemon *daemon;
138 * Task for disconnecting DHT handles
140 GNUNET_SCHEDULER_TaskIdentifier disconnect_task;
143 struct TestPutContext
145 /* This is a linked list */
146 struct TestPutContext *next;
149 * Handle to the first peers DHT service (via the API)
151 struct GNUNET_DHT_Handle *dht_handle;
154 * Handle to the PUT peer daemon
156 struct GNUNET_TESTING_Daemon *daemon;
159 * Identifier for this PUT
164 * Task for disconnecting DHT handles
166 GNUNET_SCHEDULER_TaskIdentifier disconnect_task;
169 struct TestGetContext
171 /* This is a linked list */
172 struct TestGetContext *next;
175 * Handle to the first peers DHT service (via the API)
177 struct GNUNET_DHT_Handle *dht_handle;
180 * Handle for the DHT get request
182 struct GNUNET_DHT_GetHandle *get_handle;
185 * Handle to the GET peer daemon
187 struct GNUNET_TESTING_Daemon *daemon;
190 * Identifier for this GET
195 * Task for disconnecting DHT handles (and stopping GET)
197 GNUNET_SCHEDULER_TaskIdentifier disconnect_task;
200 * Whether or not this request has been fulfilled already.
206 * Simple struct to keep track of progress, and print a
207 * nice little percentage meter for long running tasks.
217 unsigned int completed;
221 char *startup_string;
225 * Linked list of information for populating statistics
226 * before ending trial.
228 struct StatisticsIteratorContext
230 const struct GNUNET_PeerIdentity *peer;
231 unsigned int stat_routes;
232 unsigned int stat_route_forwards;
233 unsigned int stat_results;
234 unsigned int stat_results_to_client;
235 unsigned int stat_result_forwards;
236 unsigned int stat_gets;
237 unsigned int stat_puts;
238 unsigned int stat_puts_inserted;
239 unsigned int stat_find_peer;
240 unsigned int stat_find_peer_start;
241 unsigned int stat_get_start;
242 unsigned int stat_put_start;
243 unsigned int stat_find_peer_reply;
244 unsigned int stat_get_reply;
245 unsigned int stat_find_peer_answer;
246 unsigned int stat_get_response_start;
250 * Context for getting a topology, logging it, and continuing
251 * on with some next operation.
253 struct TopologyIteratorContext
255 unsigned int total_iterations;
256 unsigned int current_iteration;
257 unsigned int total_connections;
258 struct GNUNET_PeerIdentity *peer;
259 GNUNET_SCHEDULER_Task cont;
261 struct GNUNET_TIME_Relative timeout;
267 /** Node in the heap */
268 struct GNUNET_CONTAINER_HeapNode *heap_node;
270 /** Peer the count refers to */
271 struct GNUNET_PeerIdentity peer_id;
273 /** Count of connections this peer has */
278 * Context for sending out find peer requests.
280 struct FindPeerContext
283 * How long to send find peer requests, once the settle time
284 * is over don't send any more out!
286 * TODO: Add option for settle time and find peer sending time?
288 struct GNUNET_TIME_Absolute endtime;
291 * Number of connections in the current topology
292 * (after this round of find peer requests has ended).
294 unsigned int current_peers;
297 * Number of connections in the current topology
298 * (before this round of find peer requests started).
300 unsigned int previous_peers;
303 * Number of find peer requests we have currently
306 unsigned int outstanding;
309 * Number of find peer requests to send in this round.
314 * Number of find peer requests sent last time around.
316 unsigned int last_sent;
319 * Hashmap of peers in the current topology, value
320 * is a PeerCount, with the number of connections
323 struct GNUNET_CONTAINER_MultiHashMap *peer_hash;
326 * Min heap which orders values in the peer_hash for
329 struct GNUNET_CONTAINER_Heap *peer_min_heap;
332 * Callback for counting the peers in the current topology.
334 GNUNET_TESTING_NotifyTopology count_peers_cb;
340 * Next full round (puts + gets).
345 * Next round of gets.
350 * Next round of puts.
355 * Next round of churn.
365 * Timeout to let all get requests happen.
367 static struct GNUNET_TIME_Relative all_get_timeout;
372 static struct GNUNET_TIME_Relative get_timeout;
374 static struct GNUNET_TIME_Relative get_delay;
376 static struct GNUNET_TIME_Relative put_delay;
378 static struct GNUNET_TIME_Relative find_peer_delay;
380 static struct GNUNET_TIME_Relative find_peer_offset;
382 static struct GNUNET_TIME_Relative seconds_per_peer_start;
384 static unsigned int do_find_peer;
386 static unsigned int in_dht_replication;
388 static unsigned long long test_data_size = DEFAULT_TEST_DATA_SIZE;
390 static unsigned long long max_outstanding_puts = DEFAULT_MAX_OUTSTANDING_PUTS;
392 static unsigned long long max_outstanding_gets = DEFAULT_MAX_OUTSTANDING_GETS;
394 static unsigned long long malicious_getters;
396 static unsigned long long max_outstanding_find_peers;
398 static unsigned long long malicious_putters;
400 static unsigned long long round_delay;
402 static unsigned long long malicious_droppers;
404 static unsigned long long malicious_get_frequency;
406 static unsigned long long malicious_put_frequency;
408 static unsigned long long settle_time;
410 static unsigned long long trial_to_run;
412 static struct GNUNET_DHTLOG_Handle *dhtlog_handle;
414 static unsigned long long trialuid;
417 * If GNUNET_YES, insert data at the same peers every time.
418 * Otherwise, choose a new random peer to insert at each time.
420 static unsigned int replicate_same;
423 * Number of rounds for testing (PUTS + GETS)
425 static unsigned long long total_rounds;
428 * Number of rounds already run
430 static unsigned int rounds_finished;
433 * Number of rounds of churn to read from the file (first line, should be a single number).
435 static unsigned int churn_rounds;
438 * Current round we are in for churn, tells us how many peers to connect/disconnect.
440 static unsigned int current_churn_round;
443 * Number of times to churn per round
445 static unsigned long long churns_per_round;
448 * Array of churn values.
450 static unsigned int *churn_array;
453 * Hash map of stats contexts.
455 struct GNUNET_CONTAINER_MultiHashMap *stats_map;
458 * LL of malicious settings.
460 struct MaliciousContext *all_malicious;
463 * List of GETS to perform
465 struct TestGetContext *all_gets;
468 * List of PUTS to perform
470 struct TestPutContext *all_puts;
473 * Directory to store temporary data in, defined in config file
475 static char *test_directory;
478 * Variable used to store the number of connections we should wait for.
480 static unsigned int expected_connections;
483 * Variable used to keep track of how many peers aren't yet started.
485 static unsigned long long peers_left;
488 * Handle to the set of all peers run for this test.
490 static struct GNUNET_TESTING_PeerGroup *pg;
493 * Global scheduler, used for all GNUNET_SCHEDULER_* functions.
495 static struct GNUNET_SCHEDULER_Handle *sched;
498 * Global config handle.
500 const struct GNUNET_CONFIGURATION_Handle *config;
503 * Total number of peers to run, set based on config file.
505 static unsigned long long num_peers;
508 * Total number of items to insert.
510 static unsigned long long num_puts;
513 * How many puts do we currently have in flight?
515 static unsigned long long outstanding_puts;
518 * How many puts are done?
520 static unsigned long long puts_completed;
523 * Total number of items to attempt to get.
525 static unsigned long long num_gets;
528 * How many puts do we currently have in flight?
530 static unsigned long long outstanding_gets;
533 * How many gets are done?
535 static unsigned long long gets_completed;
538 * How many gets failed?
540 static unsigned long long gets_failed;
543 * How many malicious control messages do
544 * we currently have in flight?
546 static unsigned long long outstanding_malicious;
549 * How many set malicious peers are done?
551 static unsigned long long malicious_completed;
554 * Global used to count how many connections we have currently
555 * been notified about (how many times has topology_callback been called
558 static unsigned int total_connections;
561 * Global used to count how many failed connections we have
562 * been notified about (how many times has topology_callback
563 * been called with failure?)
565 static unsigned int failed_connections;
567 /* Task handle to use to schedule shutdown if something goes wrong */
568 GNUNET_SCHEDULER_TaskIdentifier die_task;
570 static char *blacklist_transports;
572 static enum GNUNET_TESTING_Topology topology;
574 static enum GNUNET_TESTING_Topology blacklist_topology = GNUNET_TESTING_TOPOLOGY_NONE; /* Don't do any blacklisting */
576 static enum GNUNET_TESTING_Topology connect_topology = GNUNET_TESTING_TOPOLOGY_NONE; /* NONE actually means connect all allowed peers */
578 static enum GNUNET_TESTING_TopologyOption connect_topology_option = GNUNET_TESTING_TOPOLOGY_OPTION_ALL;
580 static double connect_topology_option_modifier = 0.0;
582 static struct ProgressMeter *hostkey_meter;
584 static struct ProgressMeter *peer_start_meter;
586 static struct ProgressMeter *peer_connect_meter;
588 static struct ProgressMeter *put_meter;
590 static struct ProgressMeter *get_meter;
592 static GNUNET_HashCode *known_keys;
594 /* Global return value (0 for success, anything else for failure) */
598 * Create a meter to keep track of the progress of some task.
600 * @param total the total number of items to complete
601 * @param start_string a string to prefix the meter with (if printing)
602 * @param print GNUNET_YES to print the meter, GNUNET_NO to count
605 * @return the progress meter
607 static struct ProgressMeter *
608 create_meter(unsigned int total, char * start_string, int print)
610 struct ProgressMeter *ret;
611 ret = GNUNET_malloc(sizeof(struct ProgressMeter));
614 ret->modnum = total / 4;
615 ret->dotnum = (total / 50) + 1;
616 if (start_string != NULL)
617 ret->startup_string = GNUNET_strdup(start_string);
619 ret->startup_string = GNUNET_strdup("");
625 * Update progress meter (increment by one).
627 * @param meter the meter to update and print info for
629 * @return GNUNET_YES if called the total requested,
630 * GNUNET_NO if more items expected
633 update_meter(struct ProgressMeter *meter)
635 if (meter->print == GNUNET_YES)
637 if (meter->completed % meter->modnum == 0)
639 if (meter->completed == 0)
641 fprintf(stdout, "%sProgress: [0%%", meter->startup_string);
644 fprintf(stdout, "%d%%", (int)(((float)meter->completed / meter->total) * 100));
646 else if (meter->completed % meter->dotnum == 0)
647 fprintf(stdout, ".");
649 if (meter->completed + 1 == meter->total)
650 fprintf(stdout, "%d%%]\n", 100);
655 if (meter->completed == meter->total)
661 * Reset progress meter.
663 * @param meter the meter to reset
665 * @return GNUNET_YES if meter reset,
666 * GNUNET_SYSERR on error
669 reset_meter(struct ProgressMeter *meter)
672 return GNUNET_SYSERR;
674 meter->completed = 0;
679 * Release resources for meter
681 * @param meter the meter to free
684 free_meter(struct ProgressMeter *meter)
686 GNUNET_free_non_null(meter->startup_string);
687 GNUNET_free_non_null(meter);
691 * Check whether peers successfully shut down.
693 void shutdown_callback (void *cls,
704 * Task to release DHT handles for PUT
707 put_disconnect_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
709 struct TestPutContext *test_put = cls;
710 test_put->disconnect_task = GNUNET_SCHEDULER_NO_TASK;
711 GNUNET_DHT_disconnect(test_put->dht_handle);
712 test_put->dht_handle = NULL;
713 test_put->daemon = GNUNET_TESTING_daemon_get(pg, GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers));
717 * Function scheduled to be run on the successful completion of this
721 finish_testing (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
723 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Ending test normally!\n", (char *)cls);
724 GNUNET_assert (pg != NULL);
725 struct TestPutContext *test_put = all_puts;
726 struct TestGetContext *test_get = all_gets;
728 while (test_put != NULL)
730 if (test_put->disconnect_task != GNUNET_SCHEDULER_NO_TASK)
731 GNUNET_SCHEDULER_cancel(sched, test_put->disconnect_task);
732 if (test_put->dht_handle != NULL)
733 GNUNET_DHT_disconnect(test_put->dht_handle);
734 test_put = test_put->next;
737 while (test_get != NULL)
739 if (test_get->disconnect_task != GNUNET_SCHEDULER_NO_TASK)
740 GNUNET_SCHEDULER_cancel(sched, test_get->disconnect_task);
741 if (test_get->get_handle != NULL)
742 GNUNET_DHT_get_stop(test_get->get_handle, NULL, NULL);
743 if (test_get->dht_handle != NULL)
744 GNUNET_DHT_disconnect(test_get->dht_handle);
745 test_get = test_get->next;
748 GNUNET_TESTING_daemons_stop (pg, DEFAULT_TIMEOUT, &shutdown_callback, NULL);
750 if (dhtlog_handle != NULL)
752 fprintf(stderr, "Update trial endtime\n");
753 dhtlog_handle->update_trial (trialuid, gets_completed);
754 GNUNET_DHTLOG_disconnect(dhtlog_handle);
755 dhtlog_handle = NULL;
758 if (hostkey_meter != NULL)
759 free_meter(hostkey_meter);
760 if (peer_start_meter != NULL)
761 free_meter(peer_start_meter);
762 if (peer_connect_meter != NULL)
763 free_meter(peer_connect_meter);
764 if (put_meter != NULL)
765 free_meter(put_meter);
766 if (get_meter != NULL)
767 free_meter(get_meter);
773 * Callback for iterating over all the peer connections of a peer group.
775 void log_topology_cb (void *cls,
776 const struct GNUNET_PeerIdentity *first,
777 const struct GNUNET_PeerIdentity *second,
778 struct GNUNET_TIME_Relative latency,
782 struct TopologyIteratorContext *topo_ctx = cls;
783 if ((first != NULL) && (second != NULL))
785 topo_ctx->total_connections++;
786 if (GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno(config, "dht_testing", "mysql_logging_extended"))
787 dhtlog_handle->insert_extended_topology(first, second);
791 GNUNET_assert(dhtlog_handle != NULL);
792 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Topology iteration (%u/%u) finished (%u connections)\n", topo_ctx->current_iteration, topo_ctx->total_iterations, topo_ctx->total_connections);
793 dhtlog_handle->update_topology(topo_ctx->total_connections);
794 if (topo_ctx->cont != NULL)
795 GNUNET_SCHEDULER_add_now (sched, topo_ctx->cont, topo_ctx->cls);
796 GNUNET_free(topo_ctx);
801 * Iterator over hash map entries.
803 * @param cls closure - always NULL
804 * @param key current key code
805 * @param value value in the hash map, a stats context
806 * @return GNUNET_YES if we should continue to
810 static int stats_iterate (void *cls,
811 const GNUNET_HashCode * key,
814 struct StatisticsIteratorContext *stats_ctx;
818 dhtlog_handle->insert_stat(stats_ctx->peer, stats_ctx->stat_routes, stats_ctx->stat_route_forwards, stats_ctx->stat_results,
819 stats_ctx->stat_results_to_client, stats_ctx->stat_result_forwards, stats_ctx->stat_gets,
820 stats_ctx->stat_puts, stats_ctx->stat_puts_inserted, stats_ctx->stat_find_peer,
821 stats_ctx->stat_find_peer_start, stats_ctx->stat_get_start, stats_ctx->stat_put_start,
822 stats_ctx->stat_find_peer_reply, stats_ctx->stat_get_reply, stats_ctx->stat_find_peer_answer,
823 stats_ctx->stat_get_response_start);
824 GNUNET_free(stats_ctx);
828 static void stats_finished (void *cls, int result)
830 fprintf(stderr, "Finished getting all peers statistics, iterating!\n");
831 GNUNET_CONTAINER_multihashmap_iterate(stats_map, &stats_iterate, NULL);
832 GNUNET_CONTAINER_multihashmap_destroy(stats_map);
833 GNUNET_SCHEDULER_add_now (sched, &finish_testing, NULL);
837 * Callback function to process statistic values.
840 * @param peer the peer the statistics belong to
841 * @param subsystem name of subsystem that created the statistic
842 * @param name the name of the datum
843 * @param value the current value
844 * @param is_persistent GNUNET_YES if the value is persistent, GNUNET_NO if not
845 * @return GNUNET_OK to continue, GNUNET_SYSERR to abort iteration
847 static int stats_handle (void *cls,
848 const struct GNUNET_PeerIdentity *peer,
849 const char *subsystem,
854 struct StatisticsIteratorContext *stats_ctx;
856 if (dhtlog_handle != NULL)
857 dhtlog_handle->add_generic_stat(peer, name, subsystem, value);
858 if (GNUNET_CONTAINER_multihashmap_contains(stats_map, &peer->hashPubKey))
860 stats_ctx = GNUNET_CONTAINER_multihashmap_get(stats_map, &peer->hashPubKey);
864 stats_ctx = GNUNET_malloc(sizeof(struct StatisticsIteratorContext));
865 stats_ctx->peer = peer;
866 GNUNET_CONTAINER_multihashmap_put(stats_map, &peer->hashPubKey, stats_ctx, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
868 GNUNET_assert(stats_ctx != NULL);
870 if (strcmp(name, STAT_ROUTES) == 0)
871 stats_ctx->stat_routes = value;
872 else if (strcmp(name, STAT_ROUTE_FORWARDS) == 0)
873 stats_ctx->stat_route_forwards = value;
874 else if (strcmp(name, STAT_RESULTS) == 0)
875 stats_ctx->stat_results = value;
876 else if (strcmp(name, STAT_RESULTS_TO_CLIENT) == 0)
877 stats_ctx->stat_results_to_client = value;
878 else if (strcmp(name, STAT_RESULT_FORWARDS) == 0)
879 stats_ctx->stat_result_forwards = value;
880 else if (strcmp(name, STAT_GETS) == 0)
881 stats_ctx->stat_gets = value;
882 else if (strcmp(name, STAT_PUTS) == 0)
883 stats_ctx->stat_puts = value;
884 else if (strcmp(name, STAT_PUTS_INSERTED) == 0)
885 stats_ctx->stat_puts_inserted = value;
886 else if (strcmp(name, STAT_FIND_PEER) == 0)
887 stats_ctx->stat_find_peer = value;
888 else if (strcmp(name, STAT_FIND_PEER_START) == 0)
889 stats_ctx->stat_find_peer_start = value;
890 else if (strcmp(name, STAT_GET_START) == 0)
891 stats_ctx->stat_get_start = value;
892 else if (strcmp(name, STAT_PUT_START) == 0)
893 stats_ctx->stat_put_start = value;
894 else if (strcmp(name, STAT_FIND_PEER_REPLY) == 0)
895 stats_ctx->stat_find_peer_reply = value;
896 else if (strcmp(name, STAT_GET_REPLY) == 0)
897 stats_ctx->stat_get_reply = value;
898 else if (strcmp(name, STAT_FIND_PEER_ANSWER) == 0)
899 stats_ctx->stat_find_peer_answer = value;
900 else if (strcmp(name, STAT_GET_RESPONSE_START) == 0)
901 stats_ctx->stat_get_response_start = value;
907 * Connect to statistics service for each peer and get the appropriate
908 * dht statistics for safe keeping.
911 log_dht_statistics (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
913 stats_map = GNUNET_CONTAINER_multihashmap_create(num_peers);
914 fprintf(stderr, "Starting statistics logging\n");
915 GNUNET_TESTING_get_statistics(pg, &stats_finished, &stats_handle, NULL);
920 * Connect to all peers in the peer group and iterate over their
924 capture_current_topology (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
926 struct TopologyIteratorContext *topo_ctx = cls;
927 dhtlog_handle->insert_topology(0);
928 GNUNET_TESTING_get_topology (pg, &log_topology_cb, topo_ctx);
933 * Check if the get_handle is being used, if so stop the request. Either
934 * way, schedule the end_badly_cont function which actually shuts down the
938 end_badly (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
940 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Failing test with error: `%s'!\n", (char *)cls);
942 struct TestPutContext *test_put = all_puts;
943 struct TestGetContext *test_get = all_gets;
945 while (test_put != NULL)
947 if (test_put->disconnect_task != GNUNET_SCHEDULER_NO_TASK)
948 GNUNET_SCHEDULER_cancel(sched, test_put->disconnect_task);
949 if (test_put->dht_handle != NULL)
950 GNUNET_DHT_disconnect(test_put->dht_handle);
951 test_put = test_put->next;
954 while (test_get != NULL)
956 if (test_get->disconnect_task != GNUNET_SCHEDULER_NO_TASK)
957 GNUNET_SCHEDULER_cancel(sched, test_get->disconnect_task);
958 if (test_get->get_handle != NULL)
959 GNUNET_DHT_get_stop(test_get->get_handle, NULL, NULL);
960 if (test_get->dht_handle != NULL)
961 GNUNET_DHT_disconnect(test_get->dht_handle);
962 test_get = test_get->next;
965 GNUNET_TESTING_daemons_stop (pg, DEFAULT_TIMEOUT, &shutdown_callback, NULL);
967 if (dhtlog_handle != NULL)
969 fprintf(stderr, "Update trial endtime\n");
970 dhtlog_handle->update_trial (trialuid, gets_completed);
971 GNUNET_DHTLOG_disconnect(dhtlog_handle);
972 dhtlog_handle = NULL;
975 if (hostkey_meter != NULL)
976 free_meter(hostkey_meter);
977 if (peer_start_meter != NULL)
978 free_meter(peer_start_meter);
979 if (peer_connect_meter != NULL)
980 free_meter(peer_connect_meter);
981 if (put_meter != NULL)
982 free_meter(put_meter);
983 if (get_meter != NULL)
984 free_meter(get_meter);
990 * Forward declaration.
993 do_put (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc);
996 * Forward declaration.
999 do_get (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc);
1002 * Iterator over hash map entries.
1004 * @param cls closure
1005 * @param key current key code
1006 * @param value value in the hash map
1007 * @return GNUNET_YES if we should continue to
1011 static int remove_peer_count (void *cls,
1012 const GNUNET_HashCode * key,
1015 struct FindPeerContext *find_peer_ctx = cls;
1016 struct PeerCount *peer_count = value;
1017 GNUNET_CONTAINER_heap_remove_node(find_peer_ctx->peer_min_heap, peer_count->heap_node);
1018 GNUNET_free(peer_count);
1024 * Connect to all peers in the peer group and iterate over their
1028 count_new_peers (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1030 struct FindPeerContext *find_peer_context = cls;
1031 find_peer_context->previous_peers = find_peer_context->current_peers;
1032 find_peer_context->current_peers = 0;
1033 GNUNET_TESTING_get_topology (pg, find_peer_context->count_peers_cb, find_peer_context);
1037 decrement_find_peers (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1039 struct TestFindPeer *test_find_peer = cls;
1040 GNUNET_assert(test_find_peer->find_peer_context->outstanding > 0);
1041 test_find_peer->find_peer_context->outstanding--;
1042 test_find_peer->find_peer_context->total--;
1043 if ((0 == test_find_peer->find_peer_context->total) &&
1044 (GNUNET_TIME_absolute_get_remaining(test_find_peer->find_peer_context->endtime).value > 0))
1046 GNUNET_SCHEDULER_add_now(sched, &count_new_peers, test_find_peer->find_peer_context);
1048 GNUNET_free(test_find_peer);
1052 * A find peer request has been sent to the server, now we will schedule a task
1053 * to wait the appropriate time to allow the request to go out and back.
1055 * @param cls closure - a TestFindPeer struct
1056 * @param tc context the task is being called with
1059 handle_find_peer_sent (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1061 struct TestFindPeer *test_find_peer = cls;
1063 GNUNET_DHT_disconnect(test_find_peer->dht_handle);
1064 GNUNET_SCHEDULER_add_delayed(sched, GNUNET_TIME_relative_divide(find_peer_delay, 2), &decrement_find_peers, test_find_peer);
1069 send_find_peer_request (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1071 struct TestFindPeer *test_find_peer = cls;
1073 if (test_find_peer->find_peer_context->outstanding > max_outstanding_find_peers)
1075 GNUNET_SCHEDULER_add_delayed(sched, find_peer_offset, &send_find_peer_request, test_find_peer);
1079 test_find_peer->find_peer_context->outstanding++;
1080 if (GNUNET_TIME_absolute_get_remaining(test_find_peer->find_peer_context->endtime).value == 0)
1082 GNUNET_SCHEDULER_add_now(sched, &decrement_find_peers, test_find_peer);
1086 test_find_peer->dht_handle = GNUNET_DHT_connect(sched, test_find_peer->daemon->cfg, 1);
1087 GNUNET_assert(test_find_peer->dht_handle != NULL);
1088 GNUNET_DHT_find_peers (test_find_peer->dht_handle,
1089 &handle_find_peer_sent, test_find_peer);
1093 * Set up a single find peer request for each peer in the topology. Do this
1094 * until the settle time is over, limited by the number of outstanding requests
1095 * and the time allowed for each one!
1098 schedule_churn_find_peer_requests (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1100 struct FindPeerContext *find_peer_ctx = cls;
1101 struct TestFindPeer *test_find_peer;
1102 struct PeerCount *peer_count;
1105 if (find_peer_ctx->previous_peers == 0) /* First time, go slowly */
1106 find_peer_ctx->total = 1;
1107 else if (find_peer_ctx->current_peers - find_peer_ctx->previous_peers > MAX_FIND_PEER_CUTOFF) /* Found LOTS of peers, still go slowly */
1108 find_peer_ctx->total = find_peer_ctx->last_sent - (find_peer_ctx->last_sent / 8);
1110 find_peer_ctx->total = find_peer_ctx->last_sent * 2;
1112 if (find_peer_ctx->total > max_outstanding_find_peers)
1113 find_peer_ctx->total = max_outstanding_find_peers;
1115 find_peer_ctx->last_sent = find_peer_ctx->total;
1116 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Sending %u find peer messages (after churn)\n", find_peer_ctx->total);
1118 find_peer_offset = GNUNET_TIME_relative_divide(find_peer_delay, find_peer_ctx->total);
1119 for (i = 0; i < find_peer_ctx->total; i++)
1121 test_find_peer = GNUNET_malloc(sizeof(struct TestFindPeer));
1122 /* If we have sent requests, choose peers with a low number of connections to send requests from */
1123 peer_count = GNUNET_CONTAINER_heap_remove_root(find_peer_ctx->peer_min_heap);
1124 GNUNET_CONTAINER_multihashmap_remove(find_peer_ctx->peer_hash, &peer_count->peer_id.hashPubKey, peer_count);
1125 test_find_peer->daemon = GNUNET_TESTING_daemon_get_by_id(pg, &peer_count->peer_id);
1126 GNUNET_assert(test_find_peer->daemon != NULL);
1127 test_find_peer->find_peer_context = find_peer_ctx;
1128 GNUNET_SCHEDULER_add_delayed(sched, GNUNET_TIME_relative_multiply(find_peer_offset, i), &send_find_peer_request, test_find_peer);
1131 if ((find_peer_ctx->peer_hash == NULL) && (find_peer_ctx->peer_min_heap == NULL))
1133 find_peer_ctx->peer_hash = GNUNET_CONTAINER_multihashmap_create(num_peers);
1134 find_peer_ctx->peer_min_heap = GNUNET_CONTAINER_heap_create(GNUNET_CONTAINER_HEAP_ORDER_MIN);
1138 GNUNET_CONTAINER_multihashmap_iterate(find_peer_ctx->peer_hash, &remove_peer_count, find_peer_ctx);
1139 GNUNET_CONTAINER_multihashmap_destroy(find_peer_ctx->peer_hash);
1140 find_peer_ctx->peer_hash = GNUNET_CONTAINER_multihashmap_create(num_peers);
1143 GNUNET_assert(0 == GNUNET_CONTAINER_multihashmap_size(find_peer_ctx->peer_hash));
1144 GNUNET_assert(0 == GNUNET_CONTAINER_heap_get_size(find_peer_ctx->peer_min_heap));
1148 * Add a connection to the find_peer_context given. This may
1149 * be complete overkill, but allows us to choose the peers with
1150 * the least connections to initiate find peer requests from.
1152 static void add_new_connection(struct FindPeerContext *find_peer_context,
1153 const struct GNUNET_PeerIdentity *first,
1154 const struct GNUNET_PeerIdentity *second)
1156 struct PeerCount *first_count;
1157 struct PeerCount *second_count;
1159 if (GNUNET_CONTAINER_multihashmap_contains(find_peer_context->peer_hash, &first->hashPubKey))
1161 first_count = GNUNET_CONTAINER_multihashmap_get(find_peer_context->peer_hash, &first->hashPubKey);
1162 first_count->count++;
1163 GNUNET_CONTAINER_heap_update_cost(find_peer_context->peer_min_heap, first_count->heap_node, first_count->count);
1167 first_count = GNUNET_malloc(sizeof(struct PeerCount));
1168 first_count->count = 1;
1169 memcpy(&first_count->peer_id, first, sizeof(struct GNUNET_PeerIdentity));
1170 first_count->heap_node = GNUNET_CONTAINER_heap_insert(find_peer_context->peer_min_heap, first_count, first_count->count);
1171 GNUNET_CONTAINER_multihashmap_put(find_peer_context->peer_hash, &first->hashPubKey, first_count, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
1174 if (GNUNET_CONTAINER_multihashmap_contains(find_peer_context->peer_hash, &second->hashPubKey))
1176 second_count = GNUNET_CONTAINER_multihashmap_get(find_peer_context->peer_hash, &second->hashPubKey);
1177 second_count->count++;
1178 GNUNET_CONTAINER_heap_update_cost(find_peer_context->peer_min_heap, second_count->heap_node, second_count->count);
1182 second_count = GNUNET_malloc(sizeof(struct PeerCount));
1183 second_count->count = 1;
1184 memcpy(&second_count->peer_id, second, sizeof(struct GNUNET_PeerIdentity));
1185 second_count->heap_node = GNUNET_CONTAINER_heap_insert(find_peer_context->peer_min_heap, second_count, second_count->count);
1186 GNUNET_CONTAINER_multihashmap_put(find_peer_context->peer_hash, &second->hashPubKey, second_count, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
1192 * Iterate over min heap of connections per peer. For any
1193 * peer that has 0 connections, attempt to connect them to
1196 * @param cls closure a struct FindPeerContext
1197 * @param node internal node of the heap
1198 * @param element value stored, a struct PeerCount
1199 * @param cost cost associated with the node
1200 * @return GNUNET_YES if we should continue to iterate,
1203 static int iterate_min_heap_peers (void *cls,
1204 struct GNUNET_CONTAINER_HeapNode *node,
1206 GNUNET_CONTAINER_HeapCostType cost)
1208 struct FindPeerContext *find_peer_context = cls;
1209 struct PeerCount *peer_count = element;
1210 struct GNUNET_TESTING_Daemon *d1;
1211 struct GNUNET_TESTING_Daemon *d2;
1212 struct GNUNET_TIME_Relative timeout;
1215 d1 = GNUNET_TESTING_daemon_get_by_id (pg, &peer_count->peer_id);
1216 d2 = GNUNET_TESTING_daemon_get(pg, GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers));
1217 /** Just try to connect the peers, don't worry about callbacks, etc. **/
1218 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);
1219 timeout = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, DEFAULT_CONNECT_TIMEOUT);
1220 if (GNUNET_TIME_relative_to_absolute(timeout).value > find_peer_context->endtime.value)
1222 timeout = GNUNET_TIME_absolute_get_remaining(find_peer_context->endtime);
1224 GNUNET_TESTING_daemons_connect(d1, d2, timeout, DEFAULT_RECONNECT_ATTEMPTS, NULL, NULL);
1226 if (GNUNET_TIME_absolute_get_remaining(find_peer_context->endtime).value > 0)
1233 * Callback for iterating over all the peer connections of a peer group.
1234 * Used after we have churned on some peers to find which ones have zero
1235 * connections so we can make them issue find peer requests.
1237 void count_peers_churn_cb (void *cls,
1238 const struct GNUNET_PeerIdentity *first,
1239 const struct GNUNET_PeerIdentity *second,
1240 struct GNUNET_TIME_Relative latency,
1244 struct FindPeerContext *find_peer_context = cls;
1245 struct TopologyIteratorContext *topo_ctx;
1246 struct PeerCount *peer_count;
1248 if ((first != NULL) && (second != NULL))
1250 add_new_connection(find_peer_context, first, second);
1251 find_peer_context->current_peers++;
1255 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Peer count finished (%u connections)\n",
1256 find_peer_context->current_peers);
1257 peer_count = GNUNET_CONTAINER_heap_peek(find_peer_context->peer_min_heap);
1259 /* 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. */
1260 /* NO they won't, because we have disabled peerinfo writing to disk (remember?) so we WILL have to give them new connections */
1261 /* Best course of action: have DHT automatically try to add peers from peerinfo on startup. This way IF peerinfo writes to file
1262 * then some peers will end up connected.
1264 * Also, find any peers that have zero connections here and set up a task to choose at random another peer in the network to
1265 * 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
1266 * until they get a peer.
1268 /* However, they won't automatically be connected to any of their previous peers... How can we handle that? */
1269 /* So now we have choices: do we want them to come back with all their connections? Probably not, but it solves this mess. */
1271 /* Second problem, which is still a problem, is that a FIND_PEER request won't work when a peer has no connections */
1274 * Okay, so here's how this *should* work now.
1276 * 1. We check the min heap for any peers that have 0 connections.
1277 * a. If any are found, we iterate over the heap and just randomly
1278 * choose another peer and ask testing to please connect the two.
1279 * This takes care of the case that a peer just randomly joins the
1280 * network. However, if there are strict topology restrictions
1281 * (imagine a ring) choosing randomly most likely won't help.
1282 * We make sure the connection attempt doesn't take longer than
1283 * the total timeout, but don't care too much about the result.
1284 * b. After that, we still schedule the find peer requests (concurrently
1285 * with the connect attempts most likely). This handles the case
1286 * that the DHT iterates over peerinfo and just needs to try to send
1287 * a message to get connected. This should handle the case that the
1288 * topology is very strict.
1290 * 2. If all peers have > 0 connections, we still send find peer requests
1291 * as long as possible (until timeout is reached) to help out those
1292 * peers that were newly churned and need more connections. This is because
1293 * once all new peers have established a single connection, they won't be
1296 * 3. Once we reach the timeout, we can do no more. We must schedule the
1297 * next iteration of get requests regardless of connections that peers
1298 * may or may not have.
1300 * Caveat: it would be nice to get peers to take data offline with them and
1301 * come back with it (or not) based on the testing framework. The
1302 * same goes for remembering previous connections, but putting either
1303 * into the general testing churn options seems like overkill because
1304 * these are very specialized cases.
1306 if ((peer_count->count == 0) && (GNUNET_TIME_absolute_get_remaining(find_peer_context->endtime).value > 0))
1308 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Found peer with no connections, will choose some peer(s) at random to connect to!\n");
1309 GNUNET_CONTAINER_heap_iterate (find_peer_context->peer_min_heap, &iterate_min_heap_peers, find_peer_context);
1310 GNUNET_SCHEDULER_add_now(sched, &schedule_churn_find_peer_requests, find_peer_context);
1312 else if (GNUNET_TIME_absolute_get_remaining(find_peer_context->endtime).value > 0)
1314 GNUNET_SCHEDULER_add_now(sched, &schedule_churn_find_peer_requests, find_peer_context);
1318 GNUNET_CONTAINER_multihashmap_iterate(find_peer_context->peer_hash, &remove_peer_count, find_peer_context);
1319 GNUNET_CONTAINER_multihashmap_destroy(find_peer_context->peer_hash);
1320 GNUNET_CONTAINER_heap_destroy(find_peer_context->peer_min_heap);
1321 GNUNET_free(find_peer_context);
1322 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Churn round %u of %llu finished, scheduling next GET round.\n", current_churn_round, churn_rounds);
1323 if (dhtlog_handle != NULL)
1325 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
1326 topo_ctx->cont = &do_get;
1327 topo_ctx->cls = all_gets;
1328 topo_ctx->timeout = DEFAULT_GET_TIMEOUT;
1329 die_task = GNUNET_SCHEDULER_add_delayed (sched, GNUNET_TIME_relative_add(GNUNET_TIME_relative_add(DEFAULT_GET_TIMEOUT, all_get_timeout), DEFAULT_TOPOLOGY_CAPTURE_TIMEOUT),
1330 &end_badly, "from do gets (count_peers_churn_cb)");
1331 GNUNET_SCHEDULER_add_now(sched, &capture_current_topology, topo_ctx);
1335 die_task = GNUNET_SCHEDULER_add_delayed (sched, GNUNET_TIME_relative_add(GNUNET_TIME_relative_add(DEFAULT_GET_TIMEOUT, all_get_timeout), DEFAULT_TOPOLOGY_CAPTURE_TIMEOUT),
1336 &end_badly, "from do gets (count_peers_churn_cb)");
1337 GNUNET_SCHEDULER_add_now(sched, &do_get, all_gets);
1344 * Called when churning of the topology has finished.
1346 * @param cls closure unused
1347 * @param emsg NULL on success, or a printable error on failure
1349 static void churn_complete (void *cls, const char *emsg)
1351 struct FindPeerContext *find_peer_context = cls;
1352 struct PeerCount *peer_count;
1354 struct GNUNET_TESTING_Daemon *temp_daemon;
1355 struct TopologyIteratorContext *topo_ctx;
1359 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Ending test, churning of peers failed with error `%s'", emsg);
1360 GNUNET_SCHEDULER_add_now(sched, &end_badly, (void *)emsg);
1365 * If we switched any peers on, we have to somehow force connect the new peer to
1366 * SOME bootstrap peer in the network. First schedule a task to find all peers
1367 * with no connections, then choose a random peer for each and connect them.
1369 if (find_peer_context != NULL)
1371 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "We have churned on some peers, so we must schedule find peer requests for them!\n");
1372 for (i = 0; i < num_peers; i ++)
1374 temp_daemon = GNUNET_TESTING_daemon_get(pg, i);
1375 peer_count = GNUNET_malloc(sizeof(struct PeerCount));
1376 memcpy(&peer_count->peer_id, &temp_daemon->id, sizeof(struct GNUNET_PeerIdentity));
1377 peer_count->heap_node = GNUNET_CONTAINER_heap_insert(find_peer_context->peer_min_heap, peer_count, peer_count->count);
1378 GNUNET_CONTAINER_multihashmap_put(find_peer_context->peer_hash, &temp_daemon->id.hashPubKey, peer_count, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
1380 GNUNET_TESTING_get_topology (pg, &count_peers_churn_cb, find_peer_context);
1384 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Only churned off peers, no find peer requests, scheduling more gets...\n");
1385 if (dhtlog_handle != NULL)
1387 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
1388 topo_ctx->cont = &do_get;
1389 topo_ctx->cls = all_gets;
1390 topo_ctx->timeout = DEFAULT_GET_TIMEOUT;
1391 die_task = GNUNET_SCHEDULER_add_delayed (sched, GNUNET_TIME_relative_add(GNUNET_TIME_relative_add(DEFAULT_GET_TIMEOUT, all_get_timeout), DEFAULT_TOPOLOGY_CAPTURE_TIMEOUT),
1392 &end_badly, "from do gets (churn_complete)");
1393 GNUNET_SCHEDULER_add_now(sched, &capture_current_topology, topo_ctx);
1397 die_task = GNUNET_SCHEDULER_add_delayed (sched, GNUNET_TIME_relative_add(GNUNET_TIME_relative_add(DEFAULT_GET_TIMEOUT, all_get_timeout), DEFAULT_TOPOLOGY_CAPTURE_TIMEOUT),
1398 &end_badly, "from do gets (churn_complete)");
1399 if (dhtlog_handle != NULL)
1400 dhtlog_handle->insert_round(DHT_ROUND_GET, rounds_finished);
1401 GNUNET_SCHEDULER_add_now(sched, &do_get, all_gets);
1407 * Decide how many peers to turn on or off in this round, make sure the
1408 * numbers actually make sense, then do so. This function sets in motion
1409 * churn, find peer requests for newly joined peers, and issuing get
1410 * requests once the new peers have done so.
1412 * @param cls closure (unused)
1413 * @param cls task context (unused)
1416 churn_peers (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1418 unsigned int count_running;
1419 unsigned int churn_up;
1420 unsigned int churn_down;
1421 struct GNUNET_TIME_Relative timeout;
1422 struct FindPeerContext *find_peer_context;
1424 churn_up = churn_down = 0;
1425 count_running = GNUNET_TESTING_daemons_running(pg);
1426 if (count_running > churn_array[current_churn_round])
1427 churn_down = count_running - churn_array[current_churn_round];
1428 else if (count_running < churn_array[current_churn_round])
1429 churn_up = churn_array[current_churn_round] - count_running;
1431 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Not churning any peers, topology unchanged.\n");
1433 if (churn_up > num_peers - count_running)
1435 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Churn file specified %u peers (up); only have %u!", churn_array[current_churn_round], num_peers);
1436 churn_up = num_peers - count_running;
1438 else if (churn_down > count_running)
1440 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Churn file specified %u peers (down); only have %u!", churn_array[current_churn_round], count_running);
1441 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "This will leave NO peers running (mistake in churn configuration?)!");
1442 churn_down = count_running;
1444 timeout = GNUNET_TIME_relative_multiply(seconds_per_peer_start, churn_up > 0 ? churn_up : churn_down);
1446 find_peer_context = NULL;
1447 if (churn_up > 0) /* Only need to do find peer requests if we turned new peers on */
1449 find_peer_context = GNUNET_malloc(sizeof(struct FindPeerContext));
1450 find_peer_context->count_peers_cb = &count_peers_churn_cb;
1451 find_peer_context->previous_peers = 0;
1452 find_peer_context->current_peers = 0;
1453 find_peer_context->endtime = GNUNET_TIME_relative_to_absolute(timeout);
1455 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "churn_peers: want %u total, %u running, starting %u, stopping %u\n",
1456 churn_array[current_churn_round], count_running, churn_up, churn_down);
1457 GNUNET_TESTING_daemons_churn(pg, churn_down, churn_up, timeout, &churn_complete, find_peer_context);
1461 * Task to release DHT handle associated with GET request.
1464 get_stop_finished (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1466 struct TestGetContext *test_get = cls;
1467 struct TopologyIteratorContext *topo_ctx;
1468 outstanding_gets--; /* GET is really finished */
1469 GNUNET_DHT_disconnect(test_get->dht_handle);
1470 test_get->dht_handle = NULL;
1472 /* Reset the uid (which item to search for) and the daemon (which peer to search from) for later get request iterations */
1473 test_get->uid = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_puts);
1474 test_get->daemon = GNUNET_TESTING_daemon_get(pg, GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers));
1477 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "%d gets succeeded, %d gets failed!\n", gets_completed, gets_failed);
1479 update_meter(get_meter);
1480 if ((gets_completed + gets_failed == num_gets) && (outstanding_gets == 0))
1482 fprintf(stderr, "Canceling die task (get_stop_finished) %llu gets completed, %llu gets failed\n", gets_completed, gets_failed);
1483 GNUNET_SCHEDULER_cancel(sched, die_task);
1484 reset_meter(put_meter);
1485 reset_meter(get_meter);
1488 * 1) Testing is completely finished, call the topology iteration dealy and die
1489 * 2) Testing is not finished, churn the network and do gets again (current_churn_round < churn_rounds)
1490 * 3) Testing is not finished, reschedule all the PUTS *and* GETS again (num_rounds > 1)
1492 if (rounds_finished == total_rounds - 1) /* Everything is finished, end testing */
1494 if (dhtlog_handle != NULL)
1496 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
1497 topo_ctx->cont = &log_dht_statistics;
1498 GNUNET_SCHEDULER_add_now(sched, &capture_current_topology, topo_ctx);
1501 GNUNET_SCHEDULER_add_now (sched, &finish_testing, NULL);
1503 else if (current_churn_round < churns_per_round * (rounds_finished + 1)) /* Do next round of churn */
1505 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);
1508 current_churn_round++;
1510 if (dhtlog_handle != NULL)
1511 dhtlog_handle->insert_round(DHT_ROUND_CHURN, rounds_finished);
1513 GNUNET_SCHEDULER_add_now(sched, &churn_peers, NULL);
1515 else if (rounds_finished < total_rounds - 1) /* Start a new complete round */
1520 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Round %u of %llu finished, scheduling next round.\n", rounds_finished, total_rounds);
1521 /** Make sure we only get here after churning appropriately */
1522 GNUNET_assert(current_churn_round == churn_rounds);
1523 current_churn_round = 0;
1525 /** We reset the peer daemon for puts and gets on each disconnect, so all we need to do is start another round! */
1526 if (GNUNET_YES == in_dht_replication) /* Replication done in DHT, don't redo puts! */
1528 if (dhtlog_handle != NULL)
1529 dhtlog_handle->insert_round(DHT_ROUND_GET, rounds_finished);
1531 die_task = GNUNET_SCHEDULER_add_delayed (sched, GNUNET_TIME_relative_add(GNUNET_TIME_relative_add(GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, round_delay), all_get_timeout), DEFAULT_TOPOLOGY_CAPTURE_TIMEOUT),
1532 &end_badly, "from do gets (next round)");
1533 GNUNET_SCHEDULER_add_delayed(sched, GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, round_delay), &do_get, all_gets);
1537 if (dhtlog_handle != NULL)
1538 dhtlog_handle->insert_round(DHT_ROUND_NORMAL, rounds_finished);
1539 die_task = GNUNET_SCHEDULER_add_delayed (sched, GNUNET_TIME_relative_add(GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, round_delay), GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, num_puts * 2)),
1540 &end_badly, "from do puts");
1541 GNUNET_SCHEDULER_add_delayed(sched, GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, round_delay), &do_put, all_puts);
1548 * Task to release get handle.
1551 get_stop_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1553 struct TestGetContext *test_get = cls;
1555 if (tc->reason == GNUNET_SCHEDULER_REASON_TIMEOUT)
1557 GNUNET_assert(test_get->get_handle != NULL);
1558 GNUNET_DHT_get_stop(test_get->get_handle, &get_stop_finished, test_get);
1559 test_get->get_handle = NULL;
1560 test_get->disconnect_task = GNUNET_SCHEDULER_NO_TASK;
1564 * Iterator called if the GET request initiated returns a response.
1566 * @param cls closure
1567 * @param exp when will this value expire
1568 * @param key key of the result
1569 * @param type type of the result
1570 * @param size number of bytes in data
1571 * @param data pointer to the result data
1573 void get_result_iterator (void *cls,
1574 struct GNUNET_TIME_Absolute exp,
1575 const GNUNET_HashCode * key,
1580 struct TestGetContext *test_get = cls;
1582 if (test_get->succeeded == GNUNET_YES)
1583 return; /* Get has already been successful, probably ending now */
1585 if (0 != memcmp(&known_keys[test_get->uid], key, sizeof (GNUNET_HashCode))) /* || (0 != memcmp(original_data, data, sizeof(original_data))))*/
1588 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Key or data is not the same as was inserted!\n");
1593 test_get->succeeded = GNUNET_YES;
1596 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Received correct GET response!\n");
1598 GNUNET_SCHEDULER_cancel(sched, test_get->disconnect_task);
1599 GNUNET_SCHEDULER_add_continuation(sched, &get_stop_task, test_get, GNUNET_SCHEDULER_REASON_PREREQ_DONE);
1603 * Continuation telling us GET request was sent.
1606 get_continuation (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1608 // Is there something to be done here?
1609 if (tc->reason != GNUNET_SCHEDULER_REASON_PREREQ_DONE)
1614 * Set up some data, and call API PUT function
1617 do_get (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1619 struct TestGetContext *test_get = cls;
1623 GNUNET_SCHEDULER_cancel(sched, die_task);
1624 GNUNET_SCHEDULER_add_now(sched, &finish_testing, NULL);
1626 if (test_get == NULL)
1627 return; /* End of the list */
1629 /* Set this here in case we are re-running gets */
1630 test_get->succeeded = GNUNET_NO;
1632 /* Check if more gets are outstanding than should be */
1633 if (outstanding_gets > max_outstanding_gets)
1635 GNUNET_SCHEDULER_add_delayed (sched, GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MILLISECONDS, 200), &do_get, test_get);
1639 /* Connect to the first peer's DHT */
1640 test_get->dht_handle = GNUNET_DHT_connect(sched, test_get->daemon->cfg, 10);
1641 GNUNET_assert(test_get->dht_handle != NULL);
1644 /* Insert the data at the first peer */
1645 test_get->get_handle = GNUNET_DHT_get_start(test_get->dht_handle,
1648 &known_keys[test_get->uid],
1649 &get_result_iterator,
1654 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Starting get for uid %u from peer %s\n",
1656 test_get->daemon->shortname);
1658 test_get->disconnect_task = GNUNET_SCHEDULER_add_delayed(sched, get_timeout, &get_stop_task, test_get);
1660 /* Schedule the next request in the linked list of get requests */
1661 GNUNET_SCHEDULER_add_now (sched, &do_get, test_get->next);
1665 * Called when the PUT request has been transmitted to the DHT service.
1666 * Schedule the GET request for some time in the future.
1669 put_finished (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1671 struct TestPutContext *test_put = cls;
1672 struct TopologyIteratorContext *topo_ctx;
1676 if (tc->reason == GNUNET_SCHEDULER_REASON_TIMEOUT)
1677 fprintf(stderr, "PUT Request failed!\n");
1679 /* Reset the daemon (which peer to insert at) for later put request iterations */
1680 if (replicate_same == GNUNET_NO)
1681 test_put->daemon = GNUNET_TESTING_daemon_get(pg, GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers));
1683 GNUNET_SCHEDULER_cancel(sched, test_put->disconnect_task);
1684 test_put->disconnect_task = GNUNET_SCHEDULER_add_now(sched, &put_disconnect_task, test_put);
1685 if (GNUNET_YES == update_meter(put_meter))
1687 GNUNET_assert(outstanding_puts == 0);
1688 GNUNET_SCHEDULER_cancel (sched, die_task);
1689 if (dhtlog_handle != NULL)
1691 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
1692 topo_ctx->cont = &do_get;
1693 topo_ctx->cls = all_gets;
1694 topo_ctx->timeout = DEFAULT_GET_TIMEOUT;
1695 die_task = GNUNET_SCHEDULER_add_delayed (sched, GNUNET_TIME_relative_add(GNUNET_TIME_relative_add(DEFAULT_GET_TIMEOUT, all_get_timeout), DEFAULT_TOPOLOGY_CAPTURE_TIMEOUT),
1696 &end_badly, "from do gets (put finished)");
1697 GNUNET_SCHEDULER_add_now(sched, &capture_current_topology, topo_ctx);
1701 fprintf(stderr, "Scheduling die task (put finished)\n");
1702 die_task = GNUNET_SCHEDULER_add_delayed (sched, GNUNET_TIME_relative_add(DEFAULT_GET_TIMEOUT, all_get_timeout),
1703 &end_badly, "from do gets (put finished)");
1704 GNUNET_SCHEDULER_add_delayed(sched, DEFAULT_GET_TIMEOUT, &do_get, all_gets);
1711 * Set up some data, and call API PUT function
1714 do_put (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1716 struct TestPutContext *test_put = cls;
1717 char data[test_data_size]; /* Made up data to store */
1721 if (test_put == NULL)
1722 return; /* End of list */
1724 for (i = 0; i < sizeof(data); i++)
1726 memset(&data[i], GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, (uint32_t)-1), 1);
1729 if (outstanding_puts > max_outstanding_puts)
1731 GNUNET_SCHEDULER_add_delayed (sched, GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MILLISECONDS, 200), &do_put, test_put);
1736 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Starting put for uid %u from peer %s\n",
1738 test_put->daemon->shortname);
1740 test_put->dht_handle = GNUNET_DHT_connect(sched, test_put->daemon->cfg, 10);
1742 GNUNET_assert(test_put->dht_handle != NULL);
1744 GNUNET_DHT_put(test_put->dht_handle,
1745 &known_keys[test_put->uid],
1748 GNUNET_TIME_absolute_get_forever(),
1750 &put_finished, test_put);
1751 test_put->disconnect_task = GNUNET_SCHEDULER_add_delayed(sched, GNUNET_TIME_relative_get_forever(), &put_disconnect_task, test_put);
1752 rand = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, 2);
1753 GNUNET_SCHEDULER_add_delayed(sched, GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, rand), &do_put, test_put->next);
1757 schedule_find_peer_requests (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc);
1760 * Given a number of total peers and a bucket size, estimate the number of
1761 * connections in a perfect kademlia topology.
1763 static unsigned int connection_estimate(unsigned int peer_count, unsigned int bucket_size)
1766 unsigned int filled;
1770 while (i >= bucket_size)
1775 filled++; /* Add one filled bucket to account for one "half full" and some miscellaneous */
1776 return filled * bucket_size * peer_count;
1782 * Callback for iterating over all the peer connections of a peer group.
1784 void count_peers_cb (void *cls,
1785 const struct GNUNET_PeerIdentity *first,
1786 const struct GNUNET_PeerIdentity *second,
1787 struct GNUNET_TIME_Relative latency,
1791 struct FindPeerContext *find_peer_context = cls;
1792 if ((first != NULL) && (second != NULL))
1794 add_new_connection(find_peer_context, first, second);
1795 find_peer_context->current_peers++;
1799 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Peer count finished (%u connections), %u new peers, connection estimate %u (double %u)\n",
1800 find_peer_context->current_peers,
1801 find_peer_context->current_peers - find_peer_context->previous_peers,
1802 connection_estimate(num_peers, DEFAULT_BUCKET_SIZE),
1803 2 * connection_estimate(num_peers, DEFAULT_BUCKET_SIZE));
1805 if ((find_peer_context->current_peers - find_peer_context->previous_peers > FIND_PEER_THRESHOLD) &&
1806 (find_peer_context->current_peers < 2 * connection_estimate(num_peers, DEFAULT_BUCKET_SIZE)) &&
1807 (GNUNET_TIME_absolute_get_remaining(find_peer_context->endtime).value > 0))
1809 GNUNET_SCHEDULER_add_now(sched, &schedule_find_peer_requests, find_peer_context);
1813 GNUNET_CONTAINER_multihashmap_iterate(find_peer_context->peer_hash, &remove_peer_count, find_peer_context);
1814 GNUNET_CONTAINER_multihashmap_destroy(find_peer_context->peer_hash);
1815 GNUNET_CONTAINER_heap_destroy(find_peer_context->peer_min_heap);
1816 GNUNET_free(find_peer_context);
1817 fprintf(stderr, "Not sending any more find peer requests.\n");
1824 * Set up a single find peer request for each peer in the topology. Do this
1825 * until the settle time is over, limited by the number of outstanding requests
1826 * and the time allowed for each one!
1829 schedule_find_peer_requests (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1831 struct FindPeerContext *find_peer_ctx = cls;
1832 struct TestFindPeer *test_find_peer;
1833 struct PeerCount *peer_count;
1837 if (find_peer_ctx->previous_peers == 0) /* First time, go slowly */
1838 find_peer_ctx->total = 1;
1839 else if (find_peer_ctx->current_peers - find_peer_ctx->previous_peers > MAX_FIND_PEER_CUTOFF) /* Found LOTS of peers, still go slowly */
1840 find_peer_ctx->total = find_peer_ctx->last_sent - (find_peer_ctx->last_sent / 8);
1842 else if (find_peer_ctx->current_peers - find_peer_ctx->previous_peers < MIN_FIND_PEER_CUTOFF)
1843 find_peer_ctx->total = find_peer_ctx->last_sent * 2; /* FIXME: always multiply by two (unless above max?) */
1845 find_peer_ctx->total = find_peer_ctx->last_sent;
1848 find_peer_ctx->total = find_peer_ctx->last_sent * 2;
1851 if (find_peer_ctx->total > max_outstanding_find_peers)
1852 find_peer_ctx->total = max_outstanding_find_peers;
1854 find_peer_ctx->last_sent = find_peer_ctx->total;
1855 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));
1857 find_peer_offset = GNUNET_TIME_relative_divide(find_peer_delay, find_peer_ctx->total);
1858 for (i = 0; i < find_peer_ctx->total; i++)
1860 test_find_peer = GNUNET_malloc(sizeof(struct TestFindPeer));
1861 if (find_peer_ctx->previous_peers == 0) /* If we haven't sent any requests, yet choose random peers */
1864 * Attempt to spread find peer requests across even sections of the peer address
1865 * space. Choose basically 1 peer in every num_peers / max_outstanding_requests
1866 * each time, then offset it by a randomish value.
1868 * For instance, if num_peers is 100 and max_outstanding is 10, first chosen peer
1869 * will be between 0 - 10, second between 10 - 20, etc.
1871 random = (num_peers / find_peer_ctx->total) * i;
1872 random = random + GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, (num_peers / find_peer_ctx->total));
1873 if (random >= num_peers)
1875 random = random - num_peers;
1878 random = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers);
1880 test_find_peer->daemon = GNUNET_TESTING_daemon_get(pg, random);
1882 else /* If we have sent requests, choose peers with a low number of connections to send requests from */
1884 peer_count = GNUNET_CONTAINER_heap_remove_root(find_peer_ctx->peer_min_heap);
1885 GNUNET_CONTAINER_multihashmap_remove(find_peer_ctx->peer_hash, &peer_count->peer_id.hashPubKey, peer_count);
1886 test_find_peer->daemon = GNUNET_TESTING_daemon_get_by_id(pg, &peer_count->peer_id);
1887 GNUNET_assert(test_find_peer->daemon != NULL);
1890 test_find_peer->find_peer_context = find_peer_ctx;
1891 GNUNET_SCHEDULER_add_delayed(sched, GNUNET_TIME_relative_multiply(find_peer_offset, i), &send_find_peer_request, test_find_peer);
1894 if ((find_peer_ctx->peer_hash == NULL) && (find_peer_ctx->peer_min_heap == NULL))
1896 find_peer_ctx->peer_hash = GNUNET_CONTAINER_multihashmap_create(num_peers);
1897 find_peer_ctx->peer_min_heap = GNUNET_CONTAINER_heap_create(GNUNET_CONTAINER_HEAP_ORDER_MIN);
1901 GNUNET_CONTAINER_multihashmap_iterate(find_peer_ctx->peer_hash, &remove_peer_count, find_peer_ctx);
1902 GNUNET_CONTAINER_multihashmap_destroy(find_peer_ctx->peer_hash);
1903 find_peer_ctx->peer_hash = GNUNET_CONTAINER_multihashmap_create(num_peers);
1906 GNUNET_assert(0 == GNUNET_CONTAINER_multihashmap_size(find_peer_ctx->peer_hash));
1907 GNUNET_assert(0 == GNUNET_CONTAINER_heap_get_size(find_peer_ctx->peer_min_heap));
1912 * Set up some all of the put and get operations we want
1913 * to do. Allocate data structure for each, add to list,
1914 * then call actual insert functions.
1917 setup_puts_and_gets (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1920 uint32_t temp_daemon;
1921 struct TestPutContext *test_put;
1922 struct TestGetContext *test_get;
1924 int remember[num_puts][num_peers];
1925 memset(&remember, 0, sizeof(int) * num_puts * num_peers);
1927 known_keys = GNUNET_malloc(sizeof(GNUNET_HashCode) * num_puts);
1928 for (i = 0; i < num_puts; i++)
1930 test_put = GNUNET_malloc(sizeof(struct TestPutContext));
1932 GNUNET_CRYPTO_hash_create_random (GNUNET_CRYPTO_QUALITY_WEAK, &known_keys[i]);
1933 temp_daemon = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers);
1934 test_put->daemon = GNUNET_TESTING_daemon_get(pg, temp_daemon);
1935 test_put->next = all_puts;
1936 all_puts = test_put;
1939 for (i = 0; i < num_gets; i++)
1941 test_get = GNUNET_malloc(sizeof(struct TestGetContext));
1942 test_get->uid = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_puts);
1944 while (remember[test_get->uid][temp_daemon] == 1)
1945 temp_daemon = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers);
1946 remember[test_get->uid][temp_daemon] = 1;
1948 test_get->daemon = GNUNET_TESTING_daemon_get(pg, GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers));
1949 test_get->next = all_gets;
1950 all_gets = test_get;
1953 /*GNUNET_SCHEDULER_cancel (sched, die_task);*/
1954 die_task = GNUNET_SCHEDULER_add_delayed (sched, GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, num_puts * 2),
1955 &end_badly, "from do puts");
1956 GNUNET_SCHEDULER_add_now (sched, &do_put, all_puts);
1960 * Set up some all of the put and get operations we want
1961 * to do. Allocate data structure for each, add to list,
1962 * then call actual insert functions.
1965 continue_puts_and_gets (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1969 struct TopologyIteratorContext *topo_ctx;
1970 struct FindPeerContext *find_peer_context;
1971 if (dhtlog_handle != NULL)
1973 if (settle_time >= 180 * 2)
1974 max = (settle_time / 180) - 2;
1977 for (i = 1; i < max; i++)
1979 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
1980 topo_ctx->current_iteration = i;
1981 topo_ctx->total_iterations = max;
1982 //fprintf(stderr, "scheduled topology iteration in %d minutes\n", i);
1983 GNUNET_SCHEDULER_add_delayed(sched, GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MINUTES, i * 3), &capture_current_topology, topo_ctx);
1985 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
1986 topo_ctx->cont = &setup_puts_and_gets;
1987 GNUNET_SCHEDULER_add_delayed(sched, GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, settle_time), &capture_current_topology, topo_ctx);
1990 GNUNET_SCHEDULER_add_delayed(sched, GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, settle_time), &setup_puts_and_gets, NULL);
1992 if (GNUNET_YES == do_find_peer)
1994 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Scheduling find peer requests during \"settle\" time.\n");
1995 find_peer_context = GNUNET_malloc(sizeof(struct FindPeerContext));
1996 find_peer_context->count_peers_cb = &count_peers_cb;
1997 find_peer_context->endtime = GNUNET_TIME_relative_to_absolute(GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, settle_time));
1998 GNUNET_SCHEDULER_add_now(sched, &schedule_find_peer_requests, find_peer_context);
2002 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Assuming automatic DHT find peer requests.\n");
2007 * Task to release DHT handles
2010 malicious_disconnect_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
2012 struct MaliciousContext *ctx = cls;
2013 outstanding_malicious--;
2014 malicious_completed++;
2015 ctx->disconnect_task = GNUNET_SCHEDULER_NO_TASK;
2016 GNUNET_DHT_disconnect(ctx->dht_handle);
2017 ctx->dht_handle = NULL;
2020 if (malicious_completed == malicious_getters + malicious_putters + malicious_droppers)
2022 GNUNET_SCHEDULER_cancel(sched, die_task);
2023 fprintf(stderr, "Finished setting all malicious peers up, calling continuation!\n");
2024 if (dhtlog_handle != NULL)
2025 GNUNET_SCHEDULER_add_now (sched,
2026 &continue_puts_and_gets, NULL);
2028 GNUNET_SCHEDULER_add_delayed (sched,
2029 GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, settle_time),
2030 &continue_puts_and_gets, NULL);
2036 * Task to release DHT handles
2039 malicious_done_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
2041 struct MaliciousContext *ctx = cls;
2042 GNUNET_SCHEDULER_cancel(sched, ctx->disconnect_task);
2043 GNUNET_SCHEDULER_add_now(sched, &malicious_disconnect_task, ctx);
2047 * Set up some data, and call API PUT function
2050 set_malicious (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
2052 struct MaliciousContext *ctx = cls;
2055 if (outstanding_malicious > DEFAULT_MAX_OUTSTANDING_GETS)
2057 GNUNET_SCHEDULER_add_delayed (sched, GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MILLISECONDS, 100), &set_malicious, ctx);
2061 if (ctx->dht_handle == NULL)
2063 ctx->dht_handle = GNUNET_DHT_connect(sched, ctx->daemon->cfg, 1);
2064 outstanding_malicious++;
2067 GNUNET_assert(ctx->dht_handle != NULL);
2071 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Setting peer %s malicious type %d\n",
2072 ctx->daemon->shortname, ctx->malicious_type);
2076 switch (ctx->malicious_type)
2078 case GNUNET_MESSAGE_TYPE_DHT_MALICIOUS_GET:
2079 ret = GNUNET_DHT_set_malicious_getter(ctx->dht_handle, malicious_get_frequency, &malicious_done_task, ctx);
2081 case GNUNET_MESSAGE_TYPE_DHT_MALICIOUS_PUT:
2082 ret = GNUNET_DHT_set_malicious_putter(ctx->dht_handle, malicious_put_frequency, &malicious_done_task, ctx);
2084 case GNUNET_MESSAGE_TYPE_DHT_MALICIOUS_DROP:
2085 ret = GNUNET_DHT_set_malicious_dropper(ctx->dht_handle, &malicious_done_task, ctx);
2091 if (ret == GNUNET_NO)
2093 GNUNET_SCHEDULER_add_delayed (sched, GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MILLISECONDS, 100), &set_malicious, ctx);
2096 ctx->disconnect_task = GNUNET_SCHEDULER_add_delayed(sched, GNUNET_TIME_relative_get_forever(), &malicious_disconnect_task, ctx);
2100 * Select randomly from set of known peers,
2101 * set the desired number of peers to the
2102 * proper malicious types.
2105 setup_malicious_peers (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
2107 struct MaliciousContext *ctx;
2109 uint32_t temp_daemon;
2111 for (i = 0; i < malicious_getters; i++)
2113 ctx = GNUNET_malloc(sizeof(struct MaliciousContext));
2114 temp_daemon = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers);
2115 ctx->daemon = GNUNET_TESTING_daemon_get(pg, temp_daemon);
2116 ctx->malicious_type = GNUNET_MESSAGE_TYPE_DHT_MALICIOUS_GET;
2117 GNUNET_SCHEDULER_add_now (sched, &set_malicious, ctx);
2121 for (i = 0; i < malicious_putters; i++)
2123 ctx = GNUNET_malloc(sizeof(struct MaliciousContext));
2124 temp_daemon = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers);
2125 ctx->daemon = GNUNET_TESTING_daemon_get(pg, temp_daemon);
2126 ctx->malicious_type = GNUNET_MESSAGE_TYPE_DHT_MALICIOUS_PUT;
2127 GNUNET_SCHEDULER_add_now (sched, &set_malicious, ctx);
2131 for (i = 0; i < malicious_droppers; i++)
2133 ctx = GNUNET_malloc(sizeof(struct MaliciousContext));
2134 temp_daemon = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers);
2135 ctx->daemon = GNUNET_TESTING_daemon_get(pg, temp_daemon);
2136 ctx->malicious_type = GNUNET_MESSAGE_TYPE_DHT_MALICIOUS_DROP;
2137 GNUNET_SCHEDULER_add_now (sched, &set_malicious, ctx);
2141 * If we have any malicious peers to set up,
2142 * the malicious callback should call continue_gets_and_puts
2144 if (malicious_getters + malicious_putters + malicious_droppers > 0)
2146 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Giving malicious set tasks some time before starting testing!\n");
2147 die_task = GNUNET_SCHEDULER_add_delayed (sched, GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, (malicious_getters + malicious_putters + malicious_droppers) * 2),
2148 &end_badly, "from set malicious");
2150 else /* Otherwise, continue testing */
2152 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Scheduling continue_puts_and_gets now!\n");
2153 GNUNET_SCHEDULER_add_now (sched,
2154 &continue_puts_and_gets, NULL);
2159 * This function is called whenever a connection attempt is finished between two of
2160 * the started peers (started with GNUNET_TESTING_daemons_start). The total
2161 * number of times this function is called should equal the number returned
2162 * from the GNUNET_TESTING_connect_topology call.
2164 * The emsg variable is NULL on success (peers connected), and non-NULL on
2165 * failure (peers failed to connect).
2168 topology_callback (void *cls,
2169 const struct GNUNET_PeerIdentity *first,
2170 const struct GNUNET_PeerIdentity *second,
2172 const struct GNUNET_CONFIGURATION_Handle *first_cfg,
2173 const struct GNUNET_CONFIGURATION_Handle *second_cfg,
2174 struct GNUNET_TESTING_Daemon *first_daemon,
2175 struct GNUNET_TESTING_Daemon *second_daemon,
2178 struct TopologyIteratorContext *topo_ctx;
2181 total_connections++;
2183 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "connected peer %s to peer %s, distance %u\n",
2184 first_daemon->shortname,
2185 second_daemon->shortname,
2191 failed_connections++;
2193 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Failed to connect peer %s to peer %s with error :\n%s\n",
2194 first_daemon->shortname,
2195 second_daemon->shortname, emsg);
2199 GNUNET_assert(peer_connect_meter != NULL);
2200 if (GNUNET_YES == update_meter(peer_connect_meter))
2203 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2204 "Created %d total connections, which is our target number! Starting next phase of testing.\n",
2207 if (dhtlog_handle != NULL)
2209 dhtlog_handle->update_connections (trialuid, total_connections);
2210 dhtlog_handle->insert_topology(expected_connections);
2213 GNUNET_SCHEDULER_cancel (sched, die_task);
2214 /*die_task = GNUNET_SCHEDULER_add_delayed (sched, DEFAULT_TIMEOUT,
2215 &end_badly, "from setup puts/gets");*/
2216 if ((dhtlog_handle != NULL) && (settle_time > 0))
2218 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
2219 topo_ctx->cont = &setup_malicious_peers;
2220 //topo_ctx->cont = &continue_puts_and_gets;
2221 GNUNET_SCHEDULER_add_now(sched, &capture_current_topology, topo_ctx);
2225 GNUNET_SCHEDULER_add_now(sched, &setup_malicious_peers, NULL);
2226 /*GNUNET_SCHEDULER_add_delayed (sched,
2227 GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, settle_time),
2228 &continue_puts_and_gets, NULL);*/
2231 else if (total_connections + failed_connections == expected_connections)
2233 GNUNET_SCHEDULER_cancel (sched, die_task);
2234 die_task = GNUNET_SCHEDULER_add_now (sched,
2235 &end_badly, "from topology_callback (too many failed connections)");
2240 peers_started_callback (void *cls,
2241 const struct GNUNET_PeerIdentity *id,
2242 const struct GNUNET_CONFIGURATION_Handle *cfg,
2243 struct GNUNET_TESTING_Daemon *d, const char *emsg)
2247 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Failed to start daemon with error: `%s'\n",
2251 GNUNET_assert (id != NULL);
2254 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Started daemon %llu out of %llu\n",
2255 (num_peers - peers_left) + 1, num_peers);
2260 if (GNUNET_YES == update_meter(peer_start_meter))
2263 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2264 "All %d daemons started, now connecting peers!\n",
2267 GNUNET_SCHEDULER_cancel (sched, die_task);
2269 expected_connections = -1;
2270 if ((pg != NULL) && (peers_left == 0))
2272 expected_connections = GNUNET_TESTING_connect_topology (pg, connect_topology, connect_topology_option, connect_topology_option_modifier);
2274 peer_connect_meter = create_meter(expected_connections, "Peer connection ", GNUNET_YES);
2275 fprintf(stderr, "Have %d expected connections\n", expected_connections);
2278 if (expected_connections == GNUNET_SYSERR)
2280 die_task = GNUNET_SCHEDULER_add_now (sched,
2281 &end_badly, "from connect topology (bad return)");
2284 die_task = GNUNET_SCHEDULER_add_delayed (sched,
2285 GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, DEFAULT_CONNECT_TIMEOUT * expected_connections),
2286 &end_badly, "from connect topology (timeout)");
2295 peers_left = num_peers; /* Reset counter */
2296 if (GNUNET_TESTING_create_topology (pg, topology, blacklist_topology, blacklist_transports) != GNUNET_SYSERR)
2299 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2300 "Topology set up, now starting peers!\n");
2302 GNUNET_TESTING_daemons_continue_startup(pg);
2306 GNUNET_SCHEDULER_cancel (sched, die_task);
2307 die_task = GNUNET_SCHEDULER_add_now (sched,
2308 &end_badly, "from create topology (bad return)");
2310 GNUNET_free_non_null(blacklist_transports);
2311 GNUNET_SCHEDULER_cancel (sched, die_task);
2312 die_task = GNUNET_SCHEDULER_add_delayed (sched,
2313 GNUNET_TIME_relative_multiply(seconds_per_peer_start, num_peers),
2314 &end_badly, "from continue startup (timeout)");
2318 * Callback indicating that the hostkey was created for a peer.
2321 * @param id the peer identity
2322 * @param d the daemon handle (pretty useless at this point, remove?)
2323 * @param emsg non-null on failure
2325 void hostkey_callback (void *cls,
2326 const struct GNUNET_PeerIdentity *id,
2327 struct GNUNET_TESTING_Daemon *d,
2332 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Hostkey callback received error: %s\n", emsg);
2336 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2337 "Hostkey (%d/%d) created for peer `%s'\n",
2338 num_peers - peers_left, num_peers, GNUNET_i2s(id));
2342 if (GNUNET_YES == update_meter(hostkey_meter))
2345 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2346 "All %d hostkeys created, now creating topology!\n",
2349 GNUNET_SCHEDULER_cancel (sched, die_task);
2350 /* Set up task in case topology creation doesn't finish
2351 * within a reasonable amount of time */
2352 die_task = GNUNET_SCHEDULER_add_delayed (sched,
2353 DEFAULT_TOPOLOGY_TIMEOUT,
2354 &end_badly, "from create_topology");
2355 GNUNET_SCHEDULER_add_now(sched, &create_topology, NULL);
2363 struct GNUNET_SCHEDULER_Handle *s,
2365 const char *cfgfile, const struct GNUNET_CONFIGURATION_Handle *cfg)
2368 struct GNUNET_DHTLOG_TrialInfo trial_info;
2369 struct GNUNET_TESTING_Host *hosts;
2370 struct GNUNET_TESTING_Host *temphost;
2371 struct GNUNET_TESTING_Host *tempnext;
2373 char *connect_topology_str;
2374 char *blacklist_topology_str;
2375 char *connect_topology_option_str;
2376 char *connect_topology_option_modifier_string;
2378 char *topology_percentage_str;
2379 float topology_percentage;
2380 char *topology_probability_str;
2382 float topology_probability;
2383 unsigned long long temp_config_number;
2386 int strict_kademlia;
2390 char *churn_filename;
2393 unsigned int line_number;
2397 rounds_finished = 0;
2398 memset(&trial_info, 0, sizeof(struct GNUNET_DHTLOG_TrialInfo));
2399 /* Get path from configuration file */
2400 if (GNUNET_YES != GNUNET_CONFIGURATION_get_value_string(cfg, "paths", "servicehome", &test_directory))
2407 * Get DHT specific testing options.
2409 if ((GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht_testing", "mysql_logging")) ||
2410 (GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht_testing", "mysql_logging_extended")))
2412 dhtlog_handle = GNUNET_DHTLOG_connect(cfg);
2413 if (dhtlog_handle == NULL)
2415 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2416 "Could not connect to mysql server for logging, will NOT log dht operations!");
2422 stop_closest = GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht", "stop_on_closest");
2423 if (stop_closest == GNUNET_SYSERR)
2424 stop_closest = GNUNET_NO;
2426 stop_found = GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht", "stop_found");
2427 if (stop_found == GNUNET_SYSERR)
2428 stop_found = GNUNET_NO;
2430 strict_kademlia = GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht", "strict_kademlia");
2431 if (strict_kademlia == GNUNET_SYSERR)
2432 strict_kademlia = GNUNET_NO;
2435 GNUNET_CONFIGURATION_get_value_string (cfg, "dht_testing", "comment",
2437 trialmessage = NULL;
2440 /** Check for a churn file to do churny simulation */
2442 GNUNET_CONFIGURATION_get_value_string(cfg, "dht_testing", "churn_file",
2445 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Reading churn data from %s\n", churn_filename);
2446 if (GNUNET_OK != GNUNET_DISK_file_test (churn_filename))
2448 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Error reading churn file!\n");
2451 if ((0 != STAT (churn_filename, &frstat)) || (frstat.st_size == 0))
2453 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
2454 "Could not open file specified for churn data, ending test!");
2456 GNUNET_free_non_null(trialmessage);
2457 GNUNET_free(churn_filename);
2461 churn_data = GNUNET_malloc_large (frstat.st_size);
2462 GNUNET_assert(churn_data != NULL);
2463 if (frstat.st_size !=
2464 GNUNET_DISK_fn_read (churn_filename, churn_data, frstat.st_size))
2466 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
2467 "Could not read file %s specified for churn, ending test!", churn_filename);
2468 GNUNET_free (churn_filename);
2469 GNUNET_free (churn_data);
2470 GNUNET_free_non_null(trialmessage);
2474 GNUNET_free_non_null(churn_filename);
2478 /* Read the first line */
2479 while (count < frstat.st_size)
2482 if (((churn_data[count] == '\n')) && (buf != &churn_data[count]))
2484 churn_data[count] = '\0';
2485 if (1 != sscanf(buf, "%u", &churn_rounds))
2487 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Failed to read number of rounds from %s, ending test!\n", churn_filename);
2488 GNUNET_free_non_null(trialmessage);
2489 GNUNET_free(churn_filename);
2493 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Read %u rounds from churn file\n", churn_rounds);
2494 buf = &churn_data[count + 1];
2495 churn_array = GNUNET_malloc(sizeof(unsigned int) * churn_rounds);
2499 if (GNUNET_OK != GNUNET_CONFIGURATION_get_value_number(cfg, "dht_testing", "churns_per_round", &churns_per_round))
2501 churns_per_round = (unsigned long long)churn_rounds;
2505 while ((count < frstat.st_size) && (line_number < churn_rounds))
2508 if (((churn_data[count] == '\n')) && (buf != &churn_data[count]))
2510 churn_data[count] = '\0';
2512 ret = sscanf(buf, "%u", &churn_array[line_number]);
2515 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Read %u peers in round %u\n", churn_array[line_number], line_number);
2520 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Error reading line `%s' in hostfile\n", buf);
2521 buf = &churn_data[count + 1];
2524 buf = &churn_data[count + 1];
2526 else if (churn_data[count] == '\n') /* Blank line */
2527 buf = &churn_data[count + 1];
2530 GNUNET_free_non_null(churn_data);
2532 /** Check for a hostfile containing user@host:port triples */
2534 GNUNET_CONFIGURATION_get_value_string (cfg, "testing", "hostfile",
2540 if (hostfile != NULL)
2542 if (GNUNET_OK != GNUNET_DISK_file_test (hostfile))
2543 GNUNET_DISK_fn_write (hostfile, NULL, 0, GNUNET_DISK_PERM_USER_READ
2544 | GNUNET_DISK_PERM_USER_WRITE);
2545 if ((0 != STAT (hostfile, &frstat)) || (frstat.st_size == 0))
2547 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
2548 "Could not open file specified for host list, ending test!");
2550 GNUNET_free_non_null(trialmessage);
2551 GNUNET_free(hostfile);
2555 data = GNUNET_malloc_large (frstat.st_size);
2556 GNUNET_assert(data != NULL);
2557 if (frstat.st_size !=
2558 GNUNET_DISK_fn_read (hostfile, data, frstat.st_size))
2560 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
2561 "Could not read file %s specified for host list, ending test!", hostfile);
2562 GNUNET_free (hostfile);
2564 GNUNET_free_non_null(trialmessage);
2568 GNUNET_free_non_null(hostfile);
2572 while (count < frstat.st_size)
2575 /* if (((data[count] == '\n') || (data[count] == '\0')) && (buf != &data[count]))*/
2576 if (((data[count] == '\n')) && (buf != &data[count]))
2579 temphost = GNUNET_malloc(sizeof(struct GNUNET_TESTING_Host));
2580 ret = sscanf(buf, "%a[a-zA-Z0-9]@%a[a-zA-Z0-9.]:%hd", &temphost->username, &temphost->hostname, &temphost->port);
2583 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Successfully read host %s, port %d and user %s from file\n", temphost->hostname, temphost->port, temphost->username);
2587 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Error reading line `%s' in hostfile\n", buf);
2588 GNUNET_free(temphost);
2589 buf = &data[count + 1];
2592 /* temphost->hostname = buf; */
2593 temphost->next = hosts;
2595 buf = &data[count + 1];
2597 else if ((data[count] == '\n') || (data[count] == '\0'))
2598 buf = &data[count + 1];
2603 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "malicious_getters",
2604 &malicious_getters))
2605 malicious_getters = 0;
2608 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "malicious_putters",
2609 &malicious_putters))
2610 malicious_putters = 0;
2613 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "malicious_droppers",
2614 &malicious_droppers))
2615 malicious_droppers = 0;
2618 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "settle_time",
2622 if (GNUNET_SYSERR ==
2623 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "num_puts",
2625 num_puts = num_peers;
2627 if (GNUNET_SYSERR ==
2628 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "num_gets",
2630 num_gets = num_peers;
2633 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "find_peer_delay",
2634 &temp_config_number))
2635 find_peer_delay = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_config_number);
2637 find_peer_delay = DEFAULT_FIND_PEER_DELAY;
2640 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "concurrent_find_peers",
2641 &temp_config_number))
2642 max_outstanding_find_peers = temp_config_number;
2644 max_outstanding_find_peers = DEFAULT_MAX_OUTSTANDING_FIND_PEERS;
2647 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "get_timeout",
2648 &temp_config_number))
2649 get_timeout = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_config_number);
2651 get_timeout = DEFAULT_GET_TIMEOUT;
2654 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "concurrent_puts",
2655 &temp_config_number))
2656 max_outstanding_puts = temp_config_number;
2658 max_outstanding_puts = DEFAULT_MAX_OUTSTANDING_PUTS;
2661 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "concurrent_gets",
2662 &temp_config_number))
2663 max_outstanding_gets = temp_config_number;
2665 max_outstanding_gets = DEFAULT_MAX_OUTSTANDING_GETS;
2668 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "timeout",
2669 &temp_config_number))
2670 all_get_timeout = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_config_number);
2672 all_get_timeout.value = get_timeout.value * num_gets;
2675 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "get_delay",
2676 &temp_config_number))
2677 get_delay = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_config_number);
2679 get_delay = DEFAULT_GET_DELAY;
2682 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "put_delay",
2683 &temp_config_number))
2684 put_delay = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_config_number);
2686 put_delay = DEFAULT_PUT_DELAY;
2689 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "peer_start_timeout",
2690 &temp_config_number))
2691 seconds_per_peer_start = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_config_number);
2693 seconds_per_peer_start = DEFAULT_SECONDS_PER_PEER_START;
2696 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "data_size",
2697 &temp_config_number))
2698 test_data_size = temp_config_number;
2700 test_data_size = DEFAULT_TEST_DATA_SIZE;
2703 * Get testing related options.
2705 if (GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno(cfg, "DHT_TESTING", "REPLICATE_SAME"))
2707 replicate_same = GNUNET_YES;
2710 if (GNUNET_NO == GNUNET_CONFIGURATION_get_value_number (cfg, "DHT_TESTING",
2711 "MALICIOUS_GET_FREQUENCY",
2712 &malicious_get_frequency))
2713 malicious_get_frequency = DEFAULT_MALICIOUS_GET_FREQUENCY;
2716 if (GNUNET_NO == GNUNET_CONFIGURATION_get_value_number (cfg, "DHT_TESTING",
2717 "MALICIOUS_PUT_FREQUENCY",
2718 &malicious_put_frequency))
2719 malicious_put_frequency = DEFAULT_MALICIOUS_PUT_FREQUENCY;
2722 /* The normal behavior of the DHT is to do find peer requests
2723 * on its own. Only if this is explicitly turned off should
2724 * the testing driver issue find peer requests (even though
2725 * this is likely the default when testing).
2728 GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht",
2731 do_find_peer = GNUNET_YES;
2735 GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht",
2738 in_dht_replication = GNUNET_YES;
2741 if (GNUNET_YES != GNUNET_CONFIGURATION_get_value_number (cfg, "DHT_TESTING",
2748 if (GNUNET_YES == GNUNET_CONFIGURATION_get_value_number (cfg, "DHT_TESTING",
2750 &temp_config_number))
2752 find_peer_delay = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_config_number);
2755 find_peer_delay = DEFAULT_FIND_PEER_DELAY;
2757 if (GNUNET_YES != GNUNET_CONFIGURATION_get_value_number(cfg, "DHT_TESTING", "ROUND_DELAY", &round_delay))
2760 if (GNUNET_NO == GNUNET_CONFIGURATION_get_value_number (cfg, "DHT_TESTING",
2761 "OUTSTANDING_FIND_PEERS",
2762 &max_outstanding_find_peers))
2763 max_outstanding_find_peers = DEFAULT_MAX_OUTSTANDING_FIND_PEERS;
2765 if (GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht", "strict_kademlia"))
2766 max_outstanding_find_peers = max_outstanding_find_peers * 1;
2768 find_peer_offset = GNUNET_TIME_relative_divide (find_peer_delay, max_outstanding_find_peers);
2770 if (GNUNET_SYSERR ==
2771 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "num_rounds",
2777 topology_str = NULL;
2779 GNUNET_CONFIGURATION_get_value_string(cfg, "testing", "topology",
2780 &topology_str)) && (GNUNET_NO == GNUNET_TESTING_topology_get(&topology, topology_str)))
2782 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2783 "Invalid topology `%s' given for section %s option %s\n", topology_str, "TESTING", "TOPOLOGY");
2784 topology = GNUNET_TESTING_TOPOLOGY_CLIQUE; /* Defaults to NONE, so set better default here */
2788 GNUNET_CONFIGURATION_get_value_string (cfg, "testing", "percentage",
2789 &topology_percentage_str))
2790 topology_percentage = 0.5;
2793 topology_percentage = atof (topology_percentage_str);
2794 GNUNET_free(topology_percentage_str);
2798 GNUNET_CONFIGURATION_get_value_string (cfg, "testing", "probability",
2799 &topology_probability_str))
2800 topology_probability = 0.5;
2803 topology_probability = atof (topology_probability_str);
2804 GNUNET_free(topology_probability_str);
2808 GNUNET_CONFIGURATION_get_value_string(cfg, "testing", "connect_topology",
2809 &connect_topology_str)) && (GNUNET_NO == GNUNET_TESTING_topology_get(&connect_topology, connect_topology_str)))
2811 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2812 "Invalid connect topology `%s' given for section %s option %s\n", connect_topology_str, "TESTING", "CONNECT_TOPOLOGY");
2814 GNUNET_free_non_null(connect_topology_str);
2817 GNUNET_CONFIGURATION_get_value_string(cfg, "testing", "connect_topology_option",
2818 &connect_topology_option_str)) && (GNUNET_NO == GNUNET_TESTING_topology_option_get(&connect_topology_option, connect_topology_option_str)))
2820 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2821 "Invalid connect topology option `%s' given for section %s option %s\n", connect_topology_option_str, "TESTING", "CONNECT_TOPOLOGY_OPTION");
2822 connect_topology_option = GNUNET_TESTING_TOPOLOGY_OPTION_ALL; /* Defaults to NONE, set to ALL */
2824 GNUNET_free_non_null(connect_topology_option_str);
2827 GNUNET_CONFIGURATION_get_value_string (cfg, "testing", "connect_topology_option_modifier",
2828 &connect_topology_option_modifier_string))
2830 if (sscanf(connect_topology_option_modifier_string, "%lf", &connect_topology_option_modifier) != 1)
2832 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2833 _("Invalid value `%s' for option `%s' in section `%s': expected float\n"),
2834 connect_topology_option_modifier_string,
2835 "connect_topology_option_modifier",
2838 GNUNET_free (connect_topology_option_modifier_string);
2841 if (GNUNET_YES != GNUNET_CONFIGURATION_get_value_string (cfg, "testing", "blacklist_transports",
2842 &blacklist_transports))
2843 blacklist_transports = NULL;
2846 GNUNET_CONFIGURATION_get_value_string(cfg, "testing", "blacklist_topology",
2847 &blacklist_topology_str)) &&
2848 (GNUNET_NO == GNUNET_TESTING_topology_get(&blacklist_topology, blacklist_topology_str)))
2850 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2851 "Invalid topology `%s' given for section %s option %s\n", topology_str, "TESTING", "BLACKLIST_TOPOLOGY");
2853 GNUNET_free_non_null(topology_str);
2854 GNUNET_free_non_null(blacklist_topology_str);
2856 /* Get number of peers to start from configuration */
2857 if (GNUNET_SYSERR ==
2858 GNUNET_CONFIGURATION_get_value_number (cfg, "testing", "num_peers",
2861 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2862 "Number of peers must be specified in section %s option %s\n", topology_str, "TESTING", "NUM_PEERS");
2864 GNUNET_assert(num_peers > 0 && num_peers < (unsigned long long)-1);
2865 /* Set peers_left so we know when all peers started */
2866 peers_left = num_peers;
2869 /* Set up a task to end testing if peer start fails */
2870 die_task = GNUNET_SCHEDULER_add_delayed (sched,
2871 GNUNET_TIME_relative_multiply(seconds_per_peer_start, num_peers),
2872 &end_badly, "didn't generate all hostkeys within allowed startup time!");
2874 if (dhtlog_handle == NULL)
2875 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2876 "dhtlog_handle is NULL!");
2878 trial_info.other_identifier = (unsigned int)trial_to_run;
2879 trial_info.num_nodes = peers_left;
2880 trial_info.topology = topology;
2881 trial_info.blacklist_topology = blacklist_topology;
2882 trial_info.connect_topology = connect_topology;
2883 trial_info.connect_topology_option = connect_topology_option;
2884 trial_info.connect_topology_option_modifier = connect_topology_option_modifier;
2885 trial_info.topology_percentage = topology_percentage;
2886 trial_info.topology_probability = topology_probability;
2887 trial_info.puts = num_puts;
2888 trial_info.gets = num_gets;
2889 trial_info.concurrent = max_outstanding_gets;
2890 trial_info.settle_time = settle_time;
2891 trial_info.num_rounds = 1;
2892 trial_info.malicious_getters = malicious_getters;
2893 trial_info.malicious_putters = malicious_putters;
2894 trial_info.malicious_droppers = malicious_droppers;
2895 trial_info.malicious_get_frequency = malicious_get_frequency;
2896 trial_info.malicious_put_frequency = malicious_put_frequency;
2897 trial_info.stop_closest = stop_closest;
2898 trial_info.stop_found = stop_found;
2899 trial_info.strict_kademlia = strict_kademlia;
2901 if (trialmessage != NULL)
2902 trial_info.message = trialmessage;
2904 trial_info.message = "";
2906 if (dhtlog_handle != NULL)
2907 dhtlog_handle->insert_trial(&trial_info);
2909 GNUNET_free_non_null(trialmessage);
2911 hostkey_meter = create_meter(peers_left, "Hostkeys created ", GNUNET_YES);
2912 peer_start_meter = create_meter(peers_left, "Peers started ", GNUNET_YES);
2914 put_meter = create_meter(num_puts, "Puts completed ", GNUNET_YES);
2915 get_meter = create_meter(num_gets, "Gets completed ", GNUNET_YES);
2916 pg = GNUNET_TESTING_daemons_start (sched, cfg,
2918 GNUNET_TIME_relative_multiply(seconds_per_peer_start, num_peers),
2919 &hostkey_callback, NULL,
2920 &peers_started_callback, NULL,
2921 &topology_callback, NULL,
2924 while (temphost != NULL)
2926 tempnext = temphost->next;
2927 GNUNET_free (temphost->username);
2928 GNUNET_free (temphost->hostname);
2929 GNUNET_free (temphost);
2930 temphost = tempnext;
2936 main (int argc, char *argv[])
2939 struct GNUNET_GETOPT_CommandLineOption options[] = {
2940 GNUNET_GETOPT_OPTION_END
2943 ret = GNUNET_PROGRAM_run (argc,
2944 argv, "gnunet-dht-driver", "nohelp",
2945 options, &run, &ok);
2947 if (ret != GNUNET_OK)
2949 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "`gnunet-dht-driver': Failed with error code %d\n", ret);
2953 * Need to remove base directory, subdirectories taken care
2954 * of by the testing framework.
2956 if (GNUNET_DISK_directory_remove (test_directory) != GNUNET_OK)
2958 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Failed to remove testing directory %s\n", test_directory);
2963 /* end of gnunet-dht-driver.c */