2 This file is part of GNUnet.
3 (C) 2009 Christian Grothoff (and other contributing authors)
5 GNUnet is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published
7 by the Free Software Foundation; either version 3, or (at your
8 option) any later version.
10 GNUnet is distributed in the hope that it will be useful, but
11 WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with GNUnet; see the file COPYING. If not, write to the
17 Free Software Foundation, Inc., 59 Temple Place - Suite 330,
18 Boston, MA 02111-1307, USA.
21 * @file dht/gnunet-dht-driver.c
22 * @brief Driver for setting up a group of gnunet peers and
23 * then issuing GETS and PUTS on the DHT. Coarse results
24 * are reported, fine grained results (if requested) are
25 * logged to a (mysql) database, or to file.
26 * @author Nathan Evans (who to blame)
29 #ifndef HAVE_MALICIOUS
32 #include "gnunet_testing_lib.h"
33 #include "gnunet_core_service.h"
34 #include "gnunet_dht_service.h"
39 #define VERBOSE GNUNET_NO
41 /* Timeout for entire driver to run */
42 #define DEFAULT_TIMEOUT GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MINUTES, 5)
44 /* Timeout for waiting for (individual) replies to get requests */
45 #define DEFAULT_GET_TIMEOUT GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 90)
47 #define DEFAULT_TOPOLOGY_CAPTURE_TIMEOUT GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 90)
49 /* Timeout for waiting for gets to be sent to the service */
50 #define DEFAULT_GET_DELAY GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 10)
52 /* Timeout for waiting for puts to be sent to the service */
53 #define DEFAULT_PUT_DELAY GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 10)
55 /* Time to allow a find peer request to take */
56 #define DEFAULT_FIND_PEER_DELAY GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 40)
58 /* Time to wait for all peers disconnected due to to churn to actually be removed from system */
59 #define DEFAULT_PEER_DISCONNECT_TIMEOUT GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MINUTES, 5)
61 #define DEFAULT_SECONDS_PER_PEER_START GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 45)
63 #define DEFAULT_TEST_DATA_SIZE 8
65 #define DEFAULT_BUCKET_SIZE 4
67 #define FIND_PEER_THRESHOLD 1
69 /* If more than this many peers are added, slow down sending */
70 #define MAX_FIND_PEER_CUTOFF 4000
72 /* If less than this many peers are added, speed up sending */
73 #define MIN_FIND_PEER_CUTOFF 500
75 #define DEFAULT_MAX_OUTSTANDING_PUTS 10
77 #define DEFAULT_MAX_OUTSTANDING_FIND_PEERS 196
79 #define DEFAULT_FIND_PEER_OFFSET GNUNET_TIME_relative_divide (DEFAULT_FIND_PEER_DELAY, DEFAULT_MAX_OUTSTANDING_FIND_PEERS)
81 #define DEFAULT_MAX_OUTSTANDING_GETS 10
83 #define DEFAULT_CONNECT_TIMEOUT 60
85 #define DEFAULT_TOPOLOGY_TIMEOUT GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MINUTES, 8)
87 #define DEFAULT_RECONNECT_ATTEMPTS 8
90 * Default frequency for sending malicious get messages
92 #define DEFAULT_MALICIOUS_GET_FREQUENCY GNUNET_TIME_UNIT_SECONDS
95 * Default frequency for sending malicious put messages
97 #define DEFAULT_MALICIOUS_PUT_FREQUENCY GNUNET_TIME_UNIT_SECONDS
101 struct MaliciousContext
104 * Handle to DHT service (via the API)
106 struct GNUNET_DHT_Handle *dht_handle;
109 * Handle to the peer daemon
111 struct GNUNET_TESTING_Daemon *daemon;
114 * Task for disconnecting DHT handles
116 GNUNET_SCHEDULER_TaskIdentifier disconnect_task;
119 * What type of malicious to set this peer to.
126 /* This is a linked list */
127 struct TestFindPeer *next;
129 /* Handle to the bigger context */
130 struct FindPeerContext *find_peer_context;
133 * Handle to the peer's DHT service (via the API)
135 struct GNUNET_DHT_Handle *dht_handle;
138 * Handle to the peer daemon
140 struct GNUNET_TESTING_Daemon *daemon;
143 * Task for disconnecting DHT handles
145 GNUNET_SCHEDULER_TaskIdentifier disconnect_task;
148 struct TestPutContext
150 /* This is a linked list */
151 struct TestPutContext *next;
154 * Handle to the first peers DHT service (via the API)
156 struct GNUNET_DHT_Handle *dht_handle;
159 * Handle to the PUT peer daemon
161 struct GNUNET_TESTING_Daemon *daemon;
164 * Identifier for this PUT
169 * Task for disconnecting DHT handles
171 GNUNET_SCHEDULER_TaskIdentifier disconnect_task;
174 struct TestGetContext
176 /* This is a linked list */
177 struct TestGetContext *next;
180 * Handle to the first peers DHT service (via the API)
182 struct GNUNET_DHT_Handle *dht_handle;
185 * Handle for the DHT get request
187 struct GNUNET_DHT_GetHandle *get_handle;
190 * Handle to the GET peer daemon
192 struct GNUNET_TESTING_Daemon *daemon;
195 * Identifier for this GET
200 * Task for disconnecting DHT handles (and stopping GET)
202 GNUNET_SCHEDULER_TaskIdentifier disconnect_task;
205 * Whether or not this request has been fulfilled already.
211 * Simple struct to keep track of progress, and print a
212 * nice little percentage meter for long running tasks.
222 unsigned int completed;
226 char *startup_string;
230 * Linked list of information for populating statistics
231 * before ending trial.
233 struct StatisticsIteratorContext
235 const struct GNUNET_PeerIdentity *peer;
236 unsigned int stat_routes;
237 unsigned int stat_route_forwards;
238 unsigned int stat_results;
239 unsigned int stat_results_to_client;
240 unsigned int stat_result_forwards;
241 unsigned int stat_gets;
242 unsigned int stat_puts;
243 unsigned int stat_puts_inserted;
244 unsigned int stat_find_peer;
245 unsigned int stat_find_peer_start;
246 unsigned int stat_get_start;
247 unsigned int stat_put_start;
248 unsigned int stat_find_peer_reply;
249 unsigned int stat_get_reply;
250 unsigned int stat_find_peer_answer;
251 unsigned int stat_get_response_start;
255 * Context for getting a topology, logging it, and continuing
256 * on with some next operation.
258 struct TopologyIteratorContext
260 unsigned int total_iterations;
261 unsigned int current_iteration;
262 unsigned int total_connections;
263 unsigned int total_peers;
264 struct GNUNET_CONTAINER_MultiHashMap *peers_seen;
265 struct GNUNET_PeerIdentity *peer;
266 GNUNET_SCHEDULER_Task cont;
268 struct GNUNET_TIME_Relative timeout;
274 /** Node in the heap */
275 struct GNUNET_CONTAINER_HeapNode *heap_node;
277 /** Peer the count refers to */
278 struct GNUNET_PeerIdentity peer_id;
280 /** Count of connections this peer has */
285 * Context for sending out find peer requests.
287 struct FindPeerContext
290 * How long to send find peer requests, once the settle time
291 * is over don't send any more out!
293 * TODO: Add option for settle time and find peer sending time?
295 struct GNUNET_TIME_Absolute endtime;
298 * Number of connections in the current topology
299 * (after this round of find peer requests has ended).
301 unsigned int current_peers;
304 * Number of connections in the current topology
305 * (before this round of find peer requests started).
307 unsigned int previous_peers;
310 * Number of find peer requests we have currently
313 unsigned int outstanding;
316 * Number of find peer requests to send in this round.
321 * Number of find peer requests sent last time around.
323 unsigned int last_sent;
326 * Hashmap of peers in the current topology, value
327 * is a PeerCount, with the number of connections
330 struct GNUNET_CONTAINER_MultiHashMap *peer_hash;
333 * Min heap which orders values in the peer_hash for
336 struct GNUNET_CONTAINER_Heap *peer_min_heap;
339 * Callback for counting the peers in the current topology.
341 GNUNET_TESTING_NotifyTopology count_peers_cb;
347 * Next full round (puts + gets).
352 * Next round of gets.
357 * Next round of puts.
362 * Next round of churn.
372 * Timeout to let all get requests happen.
374 static struct GNUNET_TIME_Relative all_get_timeout;
379 static struct GNUNET_TIME_Relative get_timeout;
381 static struct GNUNET_TIME_Relative get_delay;
383 static struct GNUNET_TIME_Relative put_delay;
385 static struct GNUNET_TIME_Relative find_peer_delay;
387 static struct GNUNET_TIME_Relative find_peer_offset;
389 static struct GNUNET_TIME_Relative seconds_per_peer_start;
391 static unsigned int do_find_peer;
393 static unsigned int in_dht_replication;
395 static unsigned long long test_data_size = DEFAULT_TEST_DATA_SIZE;
397 static unsigned long long max_outstanding_puts = DEFAULT_MAX_OUTSTANDING_PUTS;
399 static unsigned long long max_outstanding_gets = DEFAULT_MAX_OUTSTANDING_GETS;
401 static unsigned long long malicious_getters;
403 static unsigned long long max_outstanding_find_peers;
405 static unsigned long long malicious_putters;
407 static unsigned long long round_delay;
409 static unsigned long long malicious_droppers;
411 static struct GNUNET_TIME_Relative malicious_get_frequency;
413 static struct GNUNET_TIME_Relative malicious_put_frequency;
415 static unsigned long long settle_time;
417 static struct GNUNET_DHTLOG_Handle *dhtlog_handle;
419 static unsigned long long trialuid;
422 * If GNUNET_YES, insert data at the same peers every time.
423 * Otherwise, choose a new random peer to insert at each time.
425 static unsigned int replicate_same;
428 * If GNUNET_YES, issue GET requests at the same peers every time.
429 * Otherwise, choose a new random peer/data combination to search
432 static unsigned int get_from_same;
435 * Number of rounds for testing (PUTS + GETS)
437 static unsigned long long total_rounds;
440 * Number of rounds already run
442 static unsigned int rounds_finished;
445 * Number of rounds of churn to read from the file (first line, should be a single number).
447 static unsigned int churn_rounds;
450 * Current round we are in for churn, tells us how many peers to connect/disconnect.
452 static unsigned int current_churn_round;
455 * Number of times to churn per round
457 static unsigned long long churns_per_round;
460 * Array of churn values.
462 static unsigned int *churn_array;
465 * Hash map of stats contexts.
467 static struct GNUNET_CONTAINER_MultiHashMap *stats_map;
470 * LL of malicious settings.
472 struct MaliciousContext *all_malicious;
475 * List of GETS to perform
477 struct TestGetContext *all_gets;
480 * List of PUTS to perform
482 struct TestPutContext *all_puts;
485 * Directory to store temporary data in, defined in config file
487 static char *test_directory;
490 * Variable used to store the number of connections we should wait for.
492 static unsigned int expected_connections;
495 * Variable used to keep track of how many peers aren't yet started.
497 static unsigned long long peers_left;
500 * Handle to the set of all peers run for this test.
502 static struct GNUNET_TESTING_PeerGroup *pg;
506 * Global config handle.
508 static const struct GNUNET_CONFIGURATION_Handle *config;
511 * Total number of peers to run, set based on config file.
513 static unsigned long long num_peers;
516 * Total number of items to insert.
518 static unsigned long long num_puts;
521 * How many puts do we currently have in flight?
523 static unsigned long long outstanding_puts;
526 * How many puts are done?
528 static unsigned long long puts_completed;
531 * Total number of items to attempt to get.
533 static unsigned long long num_gets;
536 * How many puts do we currently have in flight?
538 static unsigned long long outstanding_gets;
541 * How many gets are done?
543 static unsigned long long gets_completed;
546 * How many gets failed?
548 static unsigned long long gets_failed;
551 * How many malicious control messages do
552 * we currently have in flight?
554 static unsigned long long outstanding_malicious;
557 * How many set malicious peers are done?
559 static unsigned long long malicious_completed;
562 * Global used to count how many connections we have currently
563 * been notified about (how many times has topology_callback been called
566 static unsigned int total_connections;
569 * Global used to count how many failed connections we have
570 * been notified about (how many times has topology_callback
571 * been called with failure?)
573 static unsigned int failed_connections;
575 /* Task handle to use to schedule shutdown if something goes wrong */
576 GNUNET_SCHEDULER_TaskIdentifier die_task;
578 static char *blacklist_transports;
580 static enum GNUNET_TESTING_Topology topology;
582 static enum GNUNET_TESTING_Topology blacklist_topology = GNUNET_TESTING_TOPOLOGY_NONE; /* Don't do any blacklisting */
584 static enum GNUNET_TESTING_Topology connect_topology = GNUNET_TESTING_TOPOLOGY_NONE; /* NONE actually means connect all allowed peers */
586 static enum GNUNET_TESTING_TopologyOption connect_topology_option = GNUNET_TESTING_TOPOLOGY_OPTION_ALL;
588 static double connect_topology_option_modifier = 0.0;
590 static struct ProgressMeter *hostkey_meter;
592 static struct ProgressMeter *peer_start_meter;
594 static struct ProgressMeter *peer_connect_meter;
596 static struct ProgressMeter *put_meter;
598 static struct ProgressMeter *get_meter;
600 static GNUNET_HashCode *known_keys;
602 /* Global return value (0 for success, anything else for failure) */
606 * Create a meter to keep track of the progress of some task.
608 * @param total the total number of items to complete
609 * @param start_string a string to prefix the meter with (if printing)
610 * @param print GNUNET_YES to print the meter, GNUNET_NO to count
613 * @return the progress meter
615 static struct ProgressMeter *
616 create_meter(unsigned int total, char * start_string, int print)
618 struct ProgressMeter *ret;
619 ret = GNUNET_malloc(sizeof(struct ProgressMeter));
622 ret->modnum = total / 4;
623 ret->dotnum = (total / 50) + 1;
624 if (start_string != NULL)
625 ret->startup_string = GNUNET_strdup(start_string);
627 ret->startup_string = GNUNET_strdup("");
633 * Update progress meter (increment by one).
635 * @param meter the meter to update and print info for
637 * @return GNUNET_YES if called the total requested,
638 * GNUNET_NO if more items expected
641 update_meter(struct ProgressMeter *meter)
643 if (meter->print == GNUNET_YES)
645 if (meter->completed % meter->modnum == 0)
647 if (meter->completed == 0)
649 fprintf(stdout, "%sProgress: [0%%", meter->startup_string);
652 fprintf(stdout, "%d%%", (int)(((float)meter->completed / meter->total) * 100));
654 else if (meter->completed % meter->dotnum == 0)
655 fprintf(stdout, ".");
657 if (meter->completed + 1 == meter->total)
658 fprintf(stdout, "%d%%]\n", 100);
663 if (meter->completed == meter->total)
669 * Reset progress meter.
671 * @param meter the meter to reset
673 * @return GNUNET_YES if meter reset,
674 * GNUNET_SYSERR on error
677 reset_meter(struct ProgressMeter *meter)
680 return GNUNET_SYSERR;
682 meter->completed = 0;
687 * Release resources for meter
689 * @param meter the meter to free
692 free_meter(struct ProgressMeter *meter)
694 GNUNET_free_non_null (meter->startup_string);
699 * Check whether peers successfully shut down.
702 shutdown_callback (void *cls,
713 * Task to release DHT handles for PUT
716 put_disconnect_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
718 struct TestPutContext *test_put = cls;
719 test_put->disconnect_task = GNUNET_SCHEDULER_NO_TASK;
720 GNUNET_DHT_disconnect(test_put->dht_handle);
721 test_put->dht_handle = NULL;
722 test_put->daemon = GNUNET_TESTING_daemon_get(pg, GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers));
726 * Function scheduled to be run on the successful completion of this
730 finish_testing (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
732 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Ending test normally!\n", (char *)cls);
733 GNUNET_assert (pg != NULL);
734 struct TestPutContext *test_put = all_puts;
735 struct TestGetContext *test_get = all_gets;
737 while (test_put != NULL)
739 if (test_put->disconnect_task != GNUNET_SCHEDULER_NO_TASK)
740 GNUNET_SCHEDULER_cancel(test_put->disconnect_task);
741 if (test_put->dht_handle != NULL)
742 GNUNET_DHT_disconnect(test_put->dht_handle);
743 test_put = test_put->next;
746 while (test_get != NULL)
748 if (test_get->disconnect_task != GNUNET_SCHEDULER_NO_TASK)
749 GNUNET_SCHEDULER_cancel(test_get->disconnect_task);
750 if (test_get->get_handle != NULL)
751 GNUNET_DHT_get_stop(test_get->get_handle);
752 if (test_get->dht_handle != NULL)
753 GNUNET_DHT_disconnect(test_get->dht_handle);
754 test_get = test_get->next;
757 GNUNET_TESTING_daemons_stop (pg, DEFAULT_TIMEOUT, &shutdown_callback, NULL);
759 if (dhtlog_handle != NULL)
761 fprintf(stderr, "Update trial endtime\n");
762 dhtlog_handle->update_trial (trialuid, gets_completed);
763 GNUNET_DHTLOG_disconnect(dhtlog_handle);
764 dhtlog_handle = NULL;
767 if (hostkey_meter != NULL)
768 free_meter(hostkey_meter);
769 if (peer_start_meter != NULL)
770 free_meter(peer_start_meter);
771 if (peer_connect_meter != NULL)
772 free_meter(peer_connect_meter);
773 if (put_meter != NULL)
774 free_meter(put_meter);
775 if (get_meter != NULL)
776 free_meter(get_meter);
782 * Callback for iterating over all the peer connections of a peer group.
785 log_topology_cb (void *cls,
786 const struct GNUNET_PeerIdentity *first,
787 const struct GNUNET_PeerIdentity *second,
788 struct GNUNET_TIME_Relative latency,
792 struct TopologyIteratorContext *topo_ctx = cls;
793 if ((first != NULL) && (second != NULL))
795 if ((topo_ctx->peers_seen != NULL) && (GNUNET_NO == GNUNET_CONTAINER_multihashmap_contains(topo_ctx->peers_seen, &first->hashPubKey)))
797 GNUNET_CONTAINER_multihashmap_put(topo_ctx->peers_seen, &first->hashPubKey, NULL, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
798 topo_ctx->total_peers++;
800 topo_ctx->total_connections++;
801 if (GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno(config, "dht_testing", "mysql_logging_extended"))
802 dhtlog_handle->insert_extended_topology(first, second);
806 GNUNET_assert(dhtlog_handle != NULL);
807 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Topology iteration (%u/%u) finished (%u connections, %u peers)\n", topo_ctx->current_iteration, topo_ctx->total_iterations, topo_ctx->total_connections, topo_ctx->total_peers);
808 dhtlog_handle->update_topology(topo_ctx->total_connections);
809 if (topo_ctx->cont != NULL)
810 GNUNET_SCHEDULER_add_now (topo_ctx->cont, topo_ctx->cls);
811 if (topo_ctx->peers_seen != NULL)
812 GNUNET_CONTAINER_multihashmap_destroy(topo_ctx->peers_seen);
813 GNUNET_free(topo_ctx);
818 * Iterator over hash map entries.
820 * @param cls closure - always NULL
821 * @param key current key code
822 * @param value value in the hash map, a stats context
823 * @return GNUNET_YES if we should continue to
827 static int stats_iterate (void *cls,
828 const GNUNET_HashCode * key,
831 struct StatisticsIteratorContext *stats_ctx;
835 dhtlog_handle->insert_stat(stats_ctx->peer, stats_ctx->stat_routes, stats_ctx->stat_route_forwards, stats_ctx->stat_results,
836 stats_ctx->stat_results_to_client, stats_ctx->stat_result_forwards, stats_ctx->stat_gets,
837 stats_ctx->stat_puts, stats_ctx->stat_puts_inserted, stats_ctx->stat_find_peer,
838 stats_ctx->stat_find_peer_start, stats_ctx->stat_get_start, stats_ctx->stat_put_start,
839 stats_ctx->stat_find_peer_reply, stats_ctx->stat_get_reply, stats_ctx->stat_find_peer_answer,
840 stats_ctx->stat_get_response_start);
841 GNUNET_free(stats_ctx);
846 stats_finished (void *cls, int result)
848 fprintf(stderr, "Finished getting all peers statistics, iterating!\n");
849 GNUNET_CONTAINER_multihashmap_iterate(stats_map, &stats_iterate, NULL);
850 GNUNET_CONTAINER_multihashmap_destroy(stats_map);
851 GNUNET_SCHEDULER_add_now (&finish_testing, NULL);
855 * Callback function to process statistic values.
858 * @param peer the peer the statistics belong to
859 * @param subsystem name of subsystem that created the statistic
860 * @param name the name of the datum
861 * @param value the current value
862 * @param is_persistent GNUNET_YES if the value is persistent, GNUNET_NO if not
863 * @return GNUNET_OK to continue, GNUNET_SYSERR to abort iteration
865 static int stats_handle (void *cls,
866 const struct GNUNET_PeerIdentity *peer,
867 const char *subsystem,
872 struct StatisticsIteratorContext *stats_ctx;
874 if (dhtlog_handle != NULL)
875 dhtlog_handle->add_generic_stat(peer, name, subsystem, value);
876 if (GNUNET_CONTAINER_multihashmap_contains(stats_map, &peer->hashPubKey))
878 stats_ctx = GNUNET_CONTAINER_multihashmap_get(stats_map, &peer->hashPubKey);
882 stats_ctx = GNUNET_malloc(sizeof(struct StatisticsIteratorContext));
883 stats_ctx->peer = peer;
884 GNUNET_CONTAINER_multihashmap_put(stats_map, &peer->hashPubKey, stats_ctx, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
886 GNUNET_assert(stats_ctx != NULL);
888 if (strcmp(name, STAT_ROUTES) == 0)
889 stats_ctx->stat_routes = value;
890 else if (strcmp(name, STAT_ROUTE_FORWARDS) == 0)
891 stats_ctx->stat_route_forwards = value;
892 else if (strcmp(name, STAT_RESULTS) == 0)
893 stats_ctx->stat_results = value;
894 else if (strcmp(name, STAT_RESULTS_TO_CLIENT) == 0)
895 stats_ctx->stat_results_to_client = value;
896 else if (strcmp(name, STAT_RESULT_FORWARDS) == 0)
897 stats_ctx->stat_result_forwards = value;
898 else if (strcmp(name, STAT_GETS) == 0)
899 stats_ctx->stat_gets = value;
900 else if (strcmp(name, STAT_PUTS) == 0)
901 stats_ctx->stat_puts = value;
902 else if (strcmp(name, STAT_PUTS_INSERTED) == 0)
903 stats_ctx->stat_puts_inserted = value;
904 else if (strcmp(name, STAT_FIND_PEER) == 0)
905 stats_ctx->stat_find_peer = value;
906 else if (strcmp(name, STAT_FIND_PEER_START) == 0)
907 stats_ctx->stat_find_peer_start = value;
908 else if (strcmp(name, STAT_GET_START) == 0)
909 stats_ctx->stat_get_start = value;
910 else if (strcmp(name, STAT_PUT_START) == 0)
911 stats_ctx->stat_put_start = value;
912 else if (strcmp(name, STAT_FIND_PEER_REPLY) == 0)
913 stats_ctx->stat_find_peer_reply = value;
914 else if (strcmp(name, STAT_GET_REPLY) == 0)
915 stats_ctx->stat_get_reply = value;
916 else if (strcmp(name, STAT_FIND_PEER_ANSWER) == 0)
917 stats_ctx->stat_find_peer_answer = value;
918 else if (strcmp(name, STAT_GET_RESPONSE_START) == 0)
919 stats_ctx->stat_get_response_start = value;
925 * Connect to statistics service for each peer and get the appropriate
926 * dht statistics for safe keeping.
929 log_dht_statistics (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
931 stats_map = GNUNET_CONTAINER_multihashmap_create(num_peers);
932 fprintf(stderr, "Starting statistics logging\n");
933 GNUNET_TESTING_get_statistics(pg, &stats_finished, &stats_handle, NULL);
938 * Connect to all peers in the peer group and iterate over their
942 capture_current_topology (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
944 struct TopologyIteratorContext *topo_ctx = cls;
945 dhtlog_handle->insert_topology(0);
946 GNUNET_TESTING_get_topology (pg, &log_topology_cb, topo_ctx);
951 * Check if the get_handle is being used, if so stop the request. Either
952 * way, schedule the end_badly_cont function which actually shuts down the
956 end_badly (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
958 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Failing test with error: `%s'!\n", (char *)cls);
960 struct TestPutContext *test_put = all_puts;
961 struct TestGetContext *test_get = all_gets;
963 while (test_put != NULL)
965 if (test_put->disconnect_task != GNUNET_SCHEDULER_NO_TASK)
966 GNUNET_SCHEDULER_cancel(test_put->disconnect_task);
967 if (test_put->dht_handle != NULL)
968 GNUNET_DHT_disconnect(test_put->dht_handle);
969 test_put = test_put->next;
972 while (test_get != NULL)
974 if (test_get->disconnect_task != GNUNET_SCHEDULER_NO_TASK)
975 GNUNET_SCHEDULER_cancel(test_get->disconnect_task);
976 if (test_get->get_handle != NULL)
977 GNUNET_DHT_get_stop(test_get->get_handle);
978 if (test_get->dht_handle != NULL)
979 GNUNET_DHT_disconnect(test_get->dht_handle);
980 test_get = test_get->next;
983 GNUNET_TESTING_daemons_stop (pg, DEFAULT_TIMEOUT, &shutdown_callback, NULL);
985 if (dhtlog_handle != NULL)
987 fprintf(stderr, "Update trial endtime\n");
988 dhtlog_handle->update_trial (trialuid, gets_completed);
989 GNUNET_DHTLOG_disconnect(dhtlog_handle);
990 dhtlog_handle = NULL;
993 if (hostkey_meter != NULL)
994 free_meter(hostkey_meter);
995 if (peer_start_meter != NULL)
996 free_meter(peer_start_meter);
997 if (peer_connect_meter != NULL)
998 free_meter(peer_connect_meter);
999 if (put_meter != NULL)
1000 free_meter(put_meter);
1001 if (get_meter != NULL)
1002 free_meter(get_meter);
1008 * Forward declaration.
1011 do_put (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc);
1014 * Forward declaration.
1017 do_get (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc);
1020 * Iterator over hash map entries.
1022 * @param cls closure
1023 * @param key current key code
1024 * @param value value in the hash map
1025 * @return GNUNET_YES if we should continue to
1029 static int remove_peer_count (void *cls,
1030 const GNUNET_HashCode * key,
1033 struct FindPeerContext *find_peer_ctx = cls;
1034 struct PeerCount *peer_count = value;
1035 GNUNET_CONTAINER_heap_remove_node(find_peer_ctx->peer_min_heap, peer_count->heap_node);
1036 GNUNET_free(peer_count);
1042 * Connect to all peers in the peer group and iterate over their
1046 count_new_peers (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1048 struct FindPeerContext *find_peer_context = cls;
1049 find_peer_context->previous_peers = find_peer_context->current_peers;
1050 find_peer_context->current_peers = 0;
1051 GNUNET_TESTING_get_topology (pg, find_peer_context->count_peers_cb, find_peer_context);
1055 decrement_find_peers (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1057 struct TestFindPeer *test_find_peer = cls;
1058 GNUNET_assert(test_find_peer->find_peer_context->outstanding > 0);
1059 test_find_peer->find_peer_context->outstanding--;
1060 test_find_peer->find_peer_context->total--;
1061 if ((0 == test_find_peer->find_peer_context->total) &&
1062 (GNUNET_TIME_absolute_get_remaining(test_find_peer->find_peer_context->endtime).rel_value > 60))
1064 GNUNET_SCHEDULER_add_now(&count_new_peers, test_find_peer->find_peer_context);
1066 GNUNET_free(test_find_peer);
1070 * A find peer request has been sent to the server, now we will schedule a task
1071 * to wait the appropriate time to allow the request to go out and back.
1073 * @param cls closure - a TestFindPeer struct
1074 * @param tc context the task is being called with
1077 handle_find_peer_sent (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1079 struct TestFindPeer *test_find_peer = cls;
1081 GNUNET_DHT_disconnect(test_find_peer->dht_handle);
1082 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_divide(find_peer_delay, 2), &decrement_find_peers, test_find_peer);
1087 send_find_peer_request (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1089 struct TestFindPeer *test_find_peer = cls;
1091 if (test_find_peer->find_peer_context->outstanding > max_outstanding_find_peers)
1093 GNUNET_SCHEDULER_add_delayed(find_peer_offset, &send_find_peer_request, test_find_peer);
1097 test_find_peer->find_peer_context->outstanding++;
1098 if (GNUNET_TIME_absolute_get_remaining(test_find_peer->find_peer_context->endtime).rel_value == 0)
1100 GNUNET_SCHEDULER_add_now(&decrement_find_peers, test_find_peer);
1104 test_find_peer->dht_handle = GNUNET_DHT_connect(test_find_peer->daemon->cfg, 1);
1105 GNUNET_assert(test_find_peer->dht_handle != NULL);
1106 GNUNET_DHT_find_peers (test_find_peer->dht_handle,
1107 &handle_find_peer_sent, test_find_peer);
1112 * Add a connection to the find_peer_context given. This may
1113 * be complete overkill, but allows us to choose the peers with
1114 * the least connections to initiate find peer requests from.
1116 static void add_new_connection(struct FindPeerContext *find_peer_context,
1117 const struct GNUNET_PeerIdentity *first,
1118 const struct GNUNET_PeerIdentity *second)
1120 struct PeerCount *first_count;
1121 struct PeerCount *second_count;
1123 if (GNUNET_CONTAINER_multihashmap_contains(find_peer_context->peer_hash, &first->hashPubKey))
1125 first_count = GNUNET_CONTAINER_multihashmap_get(find_peer_context->peer_hash, &first->hashPubKey);
1126 GNUNET_assert(first_count != NULL);
1127 first_count->count++;
1128 GNUNET_CONTAINER_heap_update_cost(find_peer_context->peer_min_heap, first_count->heap_node, first_count->count);
1132 first_count = GNUNET_malloc(sizeof(struct PeerCount));
1133 first_count->count = 1;
1134 memcpy(&first_count->peer_id, first, sizeof(struct GNUNET_PeerIdentity));
1135 first_count->heap_node = GNUNET_CONTAINER_heap_insert(find_peer_context->peer_min_heap, first_count, first_count->count);
1136 GNUNET_CONTAINER_multihashmap_put(find_peer_context->peer_hash, &first->hashPubKey, first_count, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
1139 if (GNUNET_CONTAINER_multihashmap_contains(find_peer_context->peer_hash, &second->hashPubKey))
1141 second_count = GNUNET_CONTAINER_multihashmap_get(find_peer_context->peer_hash, &second->hashPubKey);
1142 GNUNET_assert(second_count != NULL);
1143 second_count->count++;
1144 GNUNET_CONTAINER_heap_update_cost(find_peer_context->peer_min_heap, second_count->heap_node, second_count->count);
1148 second_count = GNUNET_malloc(sizeof(struct PeerCount));
1149 second_count->count = 1;
1150 memcpy(&second_count->peer_id, second, sizeof(struct GNUNET_PeerIdentity));
1151 second_count->heap_node = GNUNET_CONTAINER_heap_insert(find_peer_context->peer_min_heap, second_count, second_count->count);
1152 GNUNET_CONTAINER_multihashmap_put(find_peer_context->peer_hash, &second->hashPubKey, second_count, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
1158 * Iterate over min heap of connections per peer. For any
1159 * peer that has 0 connections, attempt to connect them to
1162 * @param cls closure a struct FindPeerContext
1163 * @param node internal node of the heap
1164 * @param element value stored, a struct PeerCount
1165 * @param cost cost associated with the node
1166 * @return GNUNET_YES if we should continue to iterate,
1169 static int iterate_min_heap_peers (void *cls,
1170 struct GNUNET_CONTAINER_HeapNode *node,
1172 GNUNET_CONTAINER_HeapCostType cost)
1174 struct FindPeerContext *find_peer_context = cls;
1175 struct PeerCount *peer_count = element;
1176 struct GNUNET_TESTING_Daemon *d1;
1177 struct GNUNET_TESTING_Daemon *d2;
1178 struct GNUNET_TIME_Relative timeout;
1181 d1 = GNUNET_TESTING_daemon_get_by_id (pg, &peer_count->peer_id);
1182 GNUNET_assert(d1 != NULL);
1184 while ((d2 == d1) || (GNUNET_YES != GNUNET_TESTING_daemon_running(d2)))
1186 d2 = GNUNET_TESTING_daemon_get(pg, GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers));
1187 GNUNET_assert(d2 != NULL);
1190 /** Just try to connect the peers, don't worry about callbacks, etc. **/
1191 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);
1192 timeout = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, DEFAULT_CONNECT_TIMEOUT);
1193 if (GNUNET_TIME_relative_to_absolute(timeout).abs_value > find_peer_context->endtime.abs_value)
1195 timeout = GNUNET_TIME_absolute_get_remaining(find_peer_context->endtime);
1197 GNUNET_TESTING_daemons_connect(d1, d2, timeout, DEFAULT_RECONNECT_ATTEMPTS, NULL, NULL);
1199 if (GNUNET_TIME_absolute_get_remaining(find_peer_context->endtime).rel_value > 0)
1206 * Forward declaration.
1209 schedule_churn_find_peer_requests (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc);
1212 * Callback for iterating over all the peer connections of a peer group.
1213 * Used after we have churned on some peers to find which ones have zero
1214 * connections so we can make them issue find peer requests.
1217 count_peers_churn_cb (void *cls,
1218 const struct GNUNET_PeerIdentity *first,
1219 const struct GNUNET_PeerIdentity *second,
1220 struct GNUNET_TIME_Relative latency,
1224 struct FindPeerContext *find_peer_context = cls;
1225 struct TopologyIteratorContext *topo_ctx;
1226 struct PeerCount *peer_count;
1228 if ((first != NULL) && (second != NULL))
1230 add_new_connection(find_peer_context, first, second);
1231 find_peer_context->current_peers++;
1235 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Peer count finished (%u connections)\n",
1236 find_peer_context->current_peers);
1237 peer_count = GNUNET_CONTAINER_heap_peek(find_peer_context->peer_min_heap);
1238 GNUNET_assert(peer_count != NULL);
1239 /* 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. */
1240 /* NO they won't, because we have disabled peerinfo writing to disk (remember?) so we WILL have to give them new connections */
1241 /* Best course of action: have DHT automatically try to add peers from peerinfo on startup. This way IF peerinfo writes to file
1242 * then some peers will end up connected.
1244 * Also, find any peers that have zero connections here and set up a task to choose at random another peer in the network to
1245 * 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
1246 * until they get a peer.
1248 /* However, they won't automatically be connected to any of their previous peers... How can we handle that? */
1249 /* So now we have choices: do we want them to come back with all their connections? Probably not, but it solves this mess. */
1251 /* Second problem, which is still a problem, is that a FIND_PEER request won't work when a peer has no connections */
1254 * Okay, so here's how this *should* work now.
1256 * 1. We check the min heap for any peers that have 0 connections.
1257 * a. If any are found, we iterate over the heap and just randomly
1258 * choose another peer and ask testing to please connect the two.
1259 * This takes care of the case that a peer just randomly joins the
1260 * network. However, if there are strict topology restrictions
1261 * (imagine a ring) choosing randomly most likely won't help.
1262 * We make sure the connection attempt doesn't take longer than
1263 * the total timeout, but don't care too much about the result.
1264 * b. After that, we still schedule the find peer requests (concurrently
1265 * with the connect attempts most likely). This handles the case
1266 * that the DHT iterates over peerinfo and just needs to try to send
1267 * a message to get connected. This should handle the case that the
1268 * topology is very strict.
1270 * 2. If all peers have > 0 connections, we still send find peer requests
1271 * as long as possible (until timeout is reached) to help out those
1272 * peers that were newly churned and need more connections. This is because
1273 * once all new peers have established a single connection, they won't be
1276 * 3. Once we reach the timeout, we can do no more. We must schedule the
1277 * next iteration of get requests regardless of connections that peers
1278 * may or may not have.
1280 * Caveat: it would be nice to get peers to take data offline with them and
1281 * come back with it (or not) based on the testing framework. The
1282 * same goes for remembering previous connections, but putting either
1283 * into the general testing churn options seems like overkill because
1284 * these are very specialized cases.
1286 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Out of %u peers, fewest connections is %d\n", GNUNET_CONTAINER_heap_get_size(find_peer_context->peer_min_heap), peer_count->count);
1287 if ((peer_count->count == 0) && (GNUNET_TIME_absolute_get_remaining(find_peer_context->endtime).rel_value > 0))
1289 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Found peer with no connections, will choose some peer(s) at random to connect to!\n");
1290 GNUNET_CONTAINER_heap_iterate (find_peer_context->peer_min_heap, &iterate_min_heap_peers, find_peer_context);
1291 GNUNET_SCHEDULER_add_now(&schedule_churn_find_peer_requests, find_peer_context);
1293 else if ((GNUNET_TIME_absolute_get_remaining(find_peer_context->endtime).rel_value > 0) && (find_peer_context->last_sent != 0))
1295 GNUNET_SCHEDULER_add_now(&schedule_churn_find_peer_requests, find_peer_context);
1299 GNUNET_CONTAINER_multihashmap_iterate(find_peer_context->peer_hash, &remove_peer_count, find_peer_context);
1300 GNUNET_CONTAINER_multihashmap_destroy(find_peer_context->peer_hash);
1301 GNUNET_CONTAINER_heap_destroy(find_peer_context->peer_min_heap);
1302 GNUNET_free(find_peer_context);
1303 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Churn round %u of %llu finished, scheduling next GET round.\n", current_churn_round, churn_rounds);
1304 if (dhtlog_handle != NULL)
1306 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
1307 topo_ctx->cont = &do_get;
1308 topo_ctx->cls = all_gets;
1309 topo_ctx->timeout = DEFAULT_GET_TIMEOUT;
1310 topo_ctx->peers_seen = GNUNET_CONTAINER_multihashmap_create(num_peers);
1311 die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_add(GNUNET_TIME_relative_add(DEFAULT_GET_TIMEOUT, all_get_timeout), DEFAULT_TOPOLOGY_CAPTURE_TIMEOUT),
1312 &end_badly, "from do gets (count_peers_churn_cb)");
1313 GNUNET_SCHEDULER_add_now(&capture_current_topology, topo_ctx);
1317 die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_add(GNUNET_TIME_relative_add(DEFAULT_GET_TIMEOUT, all_get_timeout), DEFAULT_TOPOLOGY_CAPTURE_TIMEOUT),
1318 &end_badly, "from do gets (count_peers_churn_cb)");
1319 GNUNET_SCHEDULER_add_now(&do_get, all_gets);
1326 * Set up a single find peer request for each peer in the topology. Do this
1327 * until the settle time is over, limited by the number of outstanding requests
1328 * and the time allowed for each one!
1331 schedule_churn_find_peer_requests (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1333 struct FindPeerContext *find_peer_ctx = cls;
1334 struct TestFindPeer *test_find_peer;
1335 struct PeerCount *peer_count;
1338 if (find_peer_ctx->previous_peers == 0) /* First time, go slowly */
1339 find_peer_ctx->total = 1;
1340 else if (find_peer_ctx->current_peers - find_peer_ctx->previous_peers < MIN_FIND_PEER_CUTOFF)
1341 find_peer_ctx->total = find_peer_ctx->total / 2;
1342 else if (find_peer_ctx->current_peers - find_peer_ctx->previous_peers > MAX_FIND_PEER_CUTOFF) /* Found LOTS of peers, still go slowly */
1343 find_peer_ctx->total = find_peer_ctx->last_sent - (find_peer_ctx->last_sent / 4);
1345 find_peer_ctx->total = find_peer_ctx->last_sent * 4;
1347 if (find_peer_ctx->total > max_outstanding_find_peers)
1348 find_peer_ctx->total = max_outstanding_find_peers;
1350 find_peer_ctx->last_sent = find_peer_ctx->total;
1351 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Sending %u find peer messages (after churn)\n", find_peer_ctx->total);
1353 if (find_peer_ctx->total > 0)
1354 find_peer_offset = GNUNET_TIME_relative_divide(find_peer_delay, find_peer_ctx->total);
1357 find_peer_ctx->previous_peers = find_peer_ctx->current_peers;
1358 find_peer_ctx->current_peers = 0;
1359 GNUNET_TESTING_get_topology (pg, &count_peers_churn_cb, find_peer_ctx);
1363 for (i = 0; i < find_peer_ctx->total; i++)
1365 test_find_peer = GNUNET_malloc(sizeof(struct TestFindPeer));
1366 /* If we have sent requests, choose peers with a low number of connections to send requests from */
1367 peer_count = GNUNET_CONTAINER_heap_remove_root(find_peer_ctx->peer_min_heap);
1368 GNUNET_assert(peer_count != NULL);
1369 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Sending find peer request from peer with %u connections\n", peer_count->count);
1370 GNUNET_CONTAINER_multihashmap_remove(find_peer_ctx->peer_hash, &peer_count->peer_id.hashPubKey, peer_count);
1371 test_find_peer->daemon = GNUNET_TESTING_daemon_get_by_id(pg, &peer_count->peer_id);
1372 GNUNET_assert(test_find_peer->daemon != NULL);
1373 test_find_peer->find_peer_context = find_peer_ctx;
1374 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_multiply(find_peer_offset, i), &send_find_peer_request, test_find_peer);
1377 if ((find_peer_ctx->peer_hash == NULL) && (find_peer_ctx->peer_min_heap == NULL))
1379 find_peer_ctx->peer_hash = GNUNET_CONTAINER_multihashmap_create(num_peers);
1380 find_peer_ctx->peer_min_heap = GNUNET_CONTAINER_heap_create(GNUNET_CONTAINER_HEAP_ORDER_MIN);
1384 GNUNET_CONTAINER_multihashmap_iterate(find_peer_ctx->peer_hash, &remove_peer_count, find_peer_ctx);
1385 GNUNET_CONTAINER_multihashmap_destroy(find_peer_ctx->peer_hash);
1386 find_peer_ctx->peer_hash = GNUNET_CONTAINER_multihashmap_create(num_peers);
1389 GNUNET_assert(0 == GNUNET_CONTAINER_multihashmap_size(find_peer_ctx->peer_hash));
1390 GNUNET_assert(0 == GNUNET_CONTAINER_heap_get_size(find_peer_ctx->peer_min_heap));
1393 static void schedule_churn_get_topology (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1395 struct FindPeerContext *find_peer_context = cls;
1396 GNUNET_TESTING_get_topology (pg, &count_peers_churn_cb, find_peer_context);
1400 * Called when churning of the topology has finished.
1402 * @param cls closure unused
1403 * @param emsg NULL on success, or a printable error on failure
1405 static void churn_complete (void *cls, const char *emsg)
1407 struct FindPeerContext *find_peer_context = cls;
1408 struct PeerCount *peer_count;
1410 struct GNUNET_TESTING_Daemon *temp_daemon;
1411 struct TopologyIteratorContext *topo_ctx;
1412 struct GNUNET_TIME_Relative calc_timeout;
1417 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Ending test, churning of peers failed with error `%s'", emsg);
1418 GNUNET_SCHEDULER_add_now(&end_badly, (void *)emsg);
1423 * If we switched any peers on, we have to somehow force connect the new peer to
1424 * SOME bootstrap peer in the network. First schedule a task to find all peers
1425 * with no connections, then choose a random peer for each and connect them.
1427 if (find_peer_context != NULL)
1429 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "We have churned on some peers, so we must schedule find peer requests for them!\n");
1431 for (i = 0; i < num_peers; i ++)
1433 temp_daemon = GNUNET_TESTING_daemon_get(pg, i);
1434 if (GNUNET_YES == GNUNET_TESTING_daemon_running(temp_daemon))
1436 peer_count = GNUNET_malloc (sizeof(struct PeerCount));
1437 memcpy(&peer_count->peer_id, &temp_daemon->id, sizeof(struct GNUNET_PeerIdentity));
1438 GNUNET_assert(peer_count->count == 0);
1439 peer_count->heap_node = GNUNET_CONTAINER_heap_insert(find_peer_context->peer_min_heap, peer_count, peer_count->count);
1440 GNUNET_CONTAINER_multihashmap_put(find_peer_context->peer_hash, &temp_daemon->id.hashPubKey, peer_count, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
1444 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Added %d peers to heap, total size %d\n", count_added, GNUNET_CONTAINER_heap_get_size(find_peer_context->peer_min_heap));
1445 GNUNET_SCHEDULER_add_delayed(DEFAULT_PEER_DISCONNECT_TIMEOUT, &schedule_churn_get_topology, find_peer_context);
1446 //GNUNET_TESTING_get_topology (pg, &count_peers_churn_cb, find_peer_context);
1450 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Only churned off peers, no find peer requests, scheduling more gets (after allowing time for peers to disconnect properly!)...\n");
1451 if (dhtlog_handle != NULL)
1453 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
1454 topo_ctx->cont = &do_get;
1455 topo_ctx->cls = all_gets;
1456 topo_ctx->timeout = DEFAULT_GET_TIMEOUT;
1457 topo_ctx->peers_seen = GNUNET_CONTAINER_multihashmap_create(num_peers);
1458 calc_timeout = GNUNET_TIME_relative_add(DEFAULT_GET_TIMEOUT, all_get_timeout);
1459 calc_timeout = GNUNET_TIME_relative_add(calc_timeout, DEFAULT_TOPOLOGY_CAPTURE_TIMEOUT);
1460 calc_timeout = GNUNET_TIME_relative_add(calc_timeout, DEFAULT_PEER_DISCONNECT_TIMEOUT);
1461 die_task = GNUNET_SCHEDULER_add_delayed (calc_timeout,
1462 &end_badly, "from do gets (churn_complete)");
1463 GNUNET_SCHEDULER_add_delayed(DEFAULT_PEER_DISCONNECT_TIMEOUT, &capture_current_topology, topo_ctx);
1467 calc_timeout = GNUNET_TIME_relative_add(DEFAULT_GET_TIMEOUT, all_get_timeout);
1468 calc_timeout = GNUNET_TIME_relative_add(calc_timeout, DEFAULT_PEER_DISCONNECT_TIMEOUT);
1469 die_task = GNUNET_SCHEDULER_add_delayed (calc_timeout,
1470 &end_badly, "from do gets (churn_complete)");
1471 if (dhtlog_handle != NULL)
1472 dhtlog_handle->insert_round(DHT_ROUND_GET, rounds_finished);
1473 GNUNET_SCHEDULER_add_delayed(DEFAULT_PEER_DISCONNECT_TIMEOUT, &do_get, all_gets);
1479 * Decide how many peers to turn on or off in this round, make sure the
1480 * numbers actually make sense, then do so. This function sets in motion
1481 * churn, find peer requests for newly joined peers, and issuing get
1482 * requests once the new peers have done so.
1484 * @param cls closure (unused)
1485 * @param cls task context (unused)
1488 churn_peers (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1490 unsigned int count_running;
1491 unsigned int churn_up;
1492 unsigned int churn_down;
1493 struct GNUNET_TIME_Relative timeout;
1494 struct FindPeerContext *find_peer_context;
1496 churn_up = churn_down = 0;
1497 count_running = GNUNET_TESTING_daemons_running(pg);
1498 if (count_running > churn_array[current_churn_round])
1499 churn_down = count_running - churn_array[current_churn_round];
1500 else if (count_running < churn_array[current_churn_round])
1501 churn_up = churn_array[current_churn_round] - count_running;
1503 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Not churning any peers, topology unchanged.\n");
1505 if (churn_up > num_peers - count_running)
1507 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Churn file specified %u peers (up); only have %u!", churn_array[current_churn_round], num_peers);
1508 churn_up = num_peers - count_running;
1510 else if (churn_down > count_running)
1512 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Churn file specified %u peers (down); only have %u!", churn_array[current_churn_round], count_running);
1513 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "This will leave NO peers running (mistake in churn configuration?)!");
1514 churn_down = count_running;
1516 //timeout = GNUNET_TIME_relative_multiply(seconds_per_peer_start, churn_up > 0 ? churn_up : churn_down);
1517 //timeout = GNUNET_TIME_relative_multiply (seconds_per_peer_start, churn_up > 0 ? churn_up : churn_down);
1518 timeout = GNUNET_TIME_relative_multiply(DEFAULT_TIMEOUT, 2); /* FIXME: Lack of intelligent choice here */
1519 find_peer_context = NULL;
1520 if (churn_up > 0) /* Only need to do find peer requests if we turned new peers on */
1522 find_peer_context = GNUNET_malloc(sizeof(struct FindPeerContext));
1523 find_peer_context->count_peers_cb = &count_peers_churn_cb;
1524 find_peer_context->previous_peers = 0;
1525 find_peer_context->current_peers = 0;
1526 find_peer_context->endtime = GNUNET_TIME_relative_to_absolute(timeout);
1527 find_peer_context->peer_hash = GNUNET_CONTAINER_multihashmap_create(num_peers);
1528 find_peer_context->peer_min_heap = GNUNET_CONTAINER_heap_create(GNUNET_CONTAINER_HEAP_ORDER_MIN);
1530 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "churn_peers: want %u total, %u running, starting %u, stopping %u\n",
1531 churn_array[current_churn_round], count_running, churn_up, churn_down);
1532 GNUNET_TESTING_daemons_churn (pg, churn_down, churn_up, timeout, &churn_complete, find_peer_context);
1533 current_churn_round++;
1537 * Task to release DHT handle associated with GET request.
1540 get_stop_finished (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1542 struct TestGetContext *test_get = cls;
1543 struct TopologyIteratorContext *topo_ctx;
1545 /* The dht_handle may be null if this get was scheduled from a down peer */
1546 if (test_get->dht_handle != NULL)
1548 GNUNET_DHT_disconnect(test_get->dht_handle);
1549 outstanding_gets--; /* GET is really finished */
1550 test_get->dht_handle = NULL;
1553 /* Reset the uid (which item to search for) and the daemon (which peer to search from) for later get request iterations */
1554 if (get_from_same == GNUNET_NO)
1556 test_get->uid = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_puts);
1557 test_get->daemon = GNUNET_TESTING_daemon_get(pg, GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers));
1561 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "%d gets succeeded, %d gets failed!\n", gets_completed, gets_failed);
1563 update_meter(get_meter);
1564 if ((gets_completed + gets_failed == num_gets) && (outstanding_gets == 0))
1566 fprintf(stderr, "Canceling die task (get_stop_finished) %llu gets completed, %llu gets failed\n", gets_completed, gets_failed);
1567 GNUNET_SCHEDULER_cancel(die_task);
1568 reset_meter(put_meter);
1569 reset_meter(get_meter);
1572 * 1) Testing is completely finished, call the topology iteration dealy and die
1573 * 2) Testing is not finished, churn the network and do gets again (current_churn_round < churn_rounds)
1574 * 3) Testing is not finished, reschedule all the PUTS *and* GETS again (num_rounds > 1)
1576 if (rounds_finished == total_rounds - 1) /* Everything is finished, end testing */
1578 if (dhtlog_handle != NULL)
1580 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
1581 topo_ctx->cont = &log_dht_statistics;
1582 topo_ctx->peers_seen = GNUNET_CONTAINER_multihashmap_create(num_peers);
1583 GNUNET_SCHEDULER_add_now(&capture_current_topology, topo_ctx);
1586 GNUNET_SCHEDULER_add_now (&finish_testing, NULL);
1588 else if (current_churn_round < churns_per_round * (rounds_finished + 1)) /* Do next round of churn */
1590 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);
1594 if (dhtlog_handle != NULL)
1595 dhtlog_handle->insert_round(DHT_ROUND_CHURN, rounds_finished);
1597 GNUNET_SCHEDULER_add_now(&churn_peers, NULL);
1599 else if (rounds_finished < total_rounds - 1) /* Start a new complete round */
1604 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Round %u of %llu finished, scheduling next round.\n", rounds_finished, total_rounds);
1606 /** We reset the peer daemon for puts and gets on each disconnect, so all we need to do is start another round! */
1607 if (GNUNET_YES == in_dht_replication) /* Replication done in DHT, don't redo puts! */
1609 if (dhtlog_handle != NULL)
1610 dhtlog_handle->insert_round(DHT_ROUND_GET, rounds_finished);
1612 die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_add(GNUNET_TIME_relative_add(GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, round_delay), all_get_timeout), DEFAULT_TOPOLOGY_CAPTURE_TIMEOUT),
1613 &end_badly, "from do gets (next round)");
1614 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, round_delay), &do_get, all_gets);
1618 if (dhtlog_handle != NULL)
1619 dhtlog_handle->insert_round(DHT_ROUND_NORMAL, rounds_finished);
1620 die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_add(GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, round_delay), GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, num_puts * 2)),
1621 &end_badly, "from do puts");
1622 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, round_delay), &do_put, all_puts);
1629 * Task to release get handle.
1632 get_stop_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1634 struct TestGetContext *test_get = cls;
1636 if (tc->reason == GNUNET_SCHEDULER_REASON_TIMEOUT)
1638 GNUNET_assert(test_get->get_handle != NULL);
1639 GNUNET_DHT_get_stop(test_get->get_handle);
1640 test_get->get_handle = NULL;
1641 test_get->disconnect_task = GNUNET_SCHEDULER_NO_TASK;
1642 GNUNET_SCHEDULER_add_now (&get_stop_finished, test_get);
1646 * Iterator called if the GET request initiated returns a response.
1648 * @param cls closure
1649 * @param exp when will this value expire
1650 * @param key key of the result
1651 * @param get_path NULL-terminated array of pointers
1652 * to the peers on reverse GET path (or NULL if not recorded)
1653 * @param put_path NULL-terminated array of pointers
1654 * to the peers on the PUT path (or NULL if not recorded)
1655 * @param type type of the result
1656 * @param size number of bytes in data
1657 * @param data pointer to the result data
1660 get_result_iterator (void *cls,
1661 struct GNUNET_TIME_Absolute exp,
1662 const GNUNET_HashCode * key,
1663 const struct GNUNET_PeerIdentity * const *get_path,
1664 const struct GNUNET_PeerIdentity * const *put_path,
1665 enum GNUNET_BLOCK_Type type,
1669 struct TestGetContext *test_get = cls;
1671 if (test_get->succeeded == GNUNET_YES)
1672 return; /* Get has already been successful, probably ending now */
1674 if (0 != memcmp(&known_keys[test_get->uid], key, sizeof (GNUNET_HashCode))) /* || (0 != memcmp(original_data, data, sizeof(original_data))))*/
1677 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Key or data is not the same as was inserted!\n");
1682 test_get->succeeded = GNUNET_YES;
1685 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Received correct GET response!\n");
1687 GNUNET_SCHEDULER_cancel(test_get->disconnect_task);
1688 GNUNET_SCHEDULER_add_continuation(&get_stop_task, test_get, GNUNET_SCHEDULER_REASON_PREREQ_DONE);
1694 * Set up some data, and call API PUT function
1697 do_get (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1699 struct TestGetContext *test_get = cls;
1703 GNUNET_SCHEDULER_cancel(die_task);
1704 GNUNET_SCHEDULER_add_now(&finish_testing, NULL);
1707 if (test_get == NULL)
1708 return; /* End of the list */
1710 /* Set this here in case we are re-running gets */
1711 test_get->succeeded = GNUNET_NO;
1713 if (GNUNET_YES != GNUNET_TESTING_daemon_running(test_get->daemon)) /* If the peer has been churned off, don't try issuing request from it! */
1715 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Peer we should issue get request from is down, skipping.\n");
1717 GNUNET_SCHEDULER_add_now (&get_stop_finished, test_get);
1718 GNUNET_SCHEDULER_add_now (&do_get, test_get->next);
1722 /* Check if more gets are outstanding than should be */
1723 if (outstanding_gets > max_outstanding_gets)
1725 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MILLISECONDS, 200), &do_get, test_get);
1729 /* Connect to the first peer's DHT */
1730 test_get->dht_handle = GNUNET_DHT_connect(test_get->daemon->cfg, 10);
1731 GNUNET_assert(test_get->dht_handle != NULL);
1734 /* Insert the data at the first peer */
1735 test_get->get_handle = GNUNET_DHT_get_start(test_get->dht_handle,
1737 GNUNET_BLOCK_TYPE_TEST,
1738 &known_keys[test_get->uid],
1742 &get_result_iterator,
1746 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Starting get for uid %u from peer %s\n",
1748 test_get->daemon->shortname);
1750 test_get->disconnect_task = GNUNET_SCHEDULER_add_delayed(get_timeout, &get_stop_task, test_get);
1752 /* Schedule the next request in the linked list of get requests */
1753 GNUNET_SCHEDULER_add_now (&do_get, test_get->next);
1757 * Called when the PUT request has been transmitted to the DHT service.
1758 * Schedule the GET request for some time in the future.
1761 put_finished (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1763 struct TestPutContext *test_put = cls;
1764 struct TopologyIteratorContext *topo_ctx;
1768 if (tc->reason == GNUNET_SCHEDULER_REASON_TIMEOUT)
1769 fprintf(stderr, "PUT Request failed!\n");
1771 /* Reset the daemon (which peer to insert at) for later put request iterations */
1772 if (replicate_same == GNUNET_NO)
1773 test_put->daemon = GNUNET_TESTING_daemon_get(pg, GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers));
1775 GNUNET_SCHEDULER_cancel(test_put->disconnect_task);
1776 test_put->disconnect_task = GNUNET_SCHEDULER_add_now(&put_disconnect_task, test_put);
1777 if (GNUNET_YES == update_meter(put_meter))
1779 GNUNET_assert(outstanding_puts == 0);
1780 GNUNET_SCHEDULER_cancel (die_task);
1781 if (dhtlog_handle != NULL)
1783 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
1784 topo_ctx->cont = &do_get;
1785 topo_ctx->cls = all_gets;
1786 topo_ctx->timeout = DEFAULT_GET_TIMEOUT;
1787 topo_ctx->peers_seen = GNUNET_CONTAINER_multihashmap_create(num_peers);
1788 die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_add(GNUNET_TIME_relative_add(DEFAULT_GET_TIMEOUT, all_get_timeout), DEFAULT_TOPOLOGY_CAPTURE_TIMEOUT),
1789 &end_badly, "from do gets (put finished)");
1790 GNUNET_SCHEDULER_add_now(&capture_current_topology, topo_ctx);
1794 fprintf(stderr, "Scheduling die task (put finished)\n");
1795 die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_add(DEFAULT_GET_TIMEOUT, all_get_timeout),
1796 &end_badly, "from do gets (put finished)");
1797 GNUNET_SCHEDULER_add_delayed(DEFAULT_GET_TIMEOUT, &do_get, all_gets);
1804 * Set up some data, and call API PUT function
1807 do_put (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1809 struct TestPutContext *test_put = cls;
1810 char data[test_data_size]; /* Made up data to store */
1814 if (test_put == NULL)
1815 return; /* End of list */
1817 if (GNUNET_YES != GNUNET_TESTING_daemon_running(test_put->daemon)) /* If the peer has been churned off, don't try issuing request from it! */
1819 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Peer we should issue put request at is down, skipping.\n");
1820 update_meter(put_meter);
1821 GNUNET_SCHEDULER_add_now (&do_put, test_put->next);
1825 for (i = 0; i < sizeof(data); i++)
1827 memset(&data[i], GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, UINT32_MAX), 1);
1830 if (outstanding_puts > max_outstanding_puts)
1832 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MILLISECONDS, 200), &do_put, test_put);
1837 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Starting put for uid %u from peer %s\n",
1839 test_put->daemon->shortname);
1841 test_put->dht_handle = GNUNET_DHT_connect(test_put->daemon->cfg, 10);
1843 GNUNET_assert(test_put->dht_handle != NULL);
1845 GNUNET_DHT_put(test_put->dht_handle,
1846 &known_keys[test_put->uid],
1848 GNUNET_BLOCK_TYPE_TEST,
1850 GNUNET_TIME_UNIT_FOREVER_ABS,
1852 &put_finished, test_put);
1853 test_put->disconnect_task = GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_get_forever(), &put_disconnect_task, test_put);
1854 rand = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, 2);
1855 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, rand), &do_put, test_put->next);
1859 schedule_find_peer_requests (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc);
1862 * Given a number of total peers and a bucket size, estimate the number of
1863 * connections in a perfect kademlia topology.
1865 static unsigned int connection_estimate(unsigned int peer_count, unsigned int bucket_size)
1868 unsigned int filled;
1872 while (i >= bucket_size)
1877 filled++; /* Add one filled bucket to account for one "half full" and some miscellaneous */
1878 return filled * bucket_size * peer_count;
1884 * Callback for iterating over all the peer connections of a peer group.
1887 count_peers_cb (void *cls,
1888 const struct GNUNET_PeerIdentity *first,
1889 const struct GNUNET_PeerIdentity *second,
1890 struct GNUNET_TIME_Relative latency,
1894 struct FindPeerContext *find_peer_context = cls;
1895 if ((first != NULL) && (second != NULL))
1897 add_new_connection(find_peer_context, first, second);
1898 find_peer_context->current_peers++;
1902 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Peer count finished (%u connections), %u new peers, connection estimate %u (double %u)\n",
1903 find_peer_context->current_peers,
1904 find_peer_context->current_peers - find_peer_context->previous_peers,
1905 connection_estimate(num_peers, DEFAULT_BUCKET_SIZE),
1906 2 * connection_estimate(num_peers, DEFAULT_BUCKET_SIZE));
1908 if ((find_peer_context->last_sent < 8) ||
1909 ((find_peer_context->current_peers - find_peer_context->previous_peers > FIND_PEER_THRESHOLD) &&
1910 (find_peer_context->current_peers < 2 * connection_estimate(num_peers, DEFAULT_BUCKET_SIZE)) &&
1911 (GNUNET_TIME_absolute_get_remaining(find_peer_context->endtime).rel_value > 0)))
1913 GNUNET_SCHEDULER_add_now(&schedule_find_peer_requests, find_peer_context);
1917 GNUNET_CONTAINER_multihashmap_iterate(find_peer_context->peer_hash, &remove_peer_count, find_peer_context);
1918 GNUNET_CONTAINER_multihashmap_destroy(find_peer_context->peer_hash);
1919 GNUNET_CONTAINER_heap_destroy(find_peer_context->peer_min_heap);
1920 GNUNET_free(find_peer_context);
1921 fprintf(stderr, "Not sending any more find peer requests.\n");
1928 * Set up a single find peer request for each peer in the topology. Do this
1929 * until the settle time is over, limited by the number of outstanding requests
1930 * and the time allowed for each one!
1933 schedule_find_peer_requests (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1935 struct FindPeerContext *find_peer_ctx = cls;
1936 struct TestFindPeer *test_find_peer;
1937 struct PeerCount *peer_count;
1941 if (find_peer_ctx->previous_peers == 0) /* First time, go slowly */
1942 find_peer_ctx->total = 1;
1943 else if (find_peer_ctx->current_peers - find_peer_ctx->previous_peers > MAX_FIND_PEER_CUTOFF) /* Found LOTS of peers, still go slowly */
1944 find_peer_ctx->total = find_peer_ctx->last_sent - (find_peer_ctx->last_sent / 8);
1946 find_peer_ctx->total = find_peer_ctx->last_sent * 2;
1948 if (find_peer_ctx->total > max_outstanding_find_peers)
1949 find_peer_ctx->total = max_outstanding_find_peers;
1951 find_peer_ctx->last_sent = find_peer_ctx->total;
1952 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));
1954 find_peer_offset = GNUNET_TIME_relative_divide(find_peer_delay, find_peer_ctx->total);
1955 for (i = 0; i < find_peer_ctx->total; i++)
1957 test_find_peer = GNUNET_malloc(sizeof(struct TestFindPeer));
1958 if (find_peer_ctx->previous_peers == 0) /* If we haven't sent any requests, yet choose random peers */
1961 * Attempt to spread find peer requests across even sections of the peer address
1962 * space. Choose basically 1 peer in every num_peers / max_outstanding_requests
1963 * each time, then offset it by a randomish value.
1965 * For instance, if num_peers is 100 and max_outstanding is 10, first chosen peer
1966 * will be between 0 - 10, second between 10 - 20, etc.
1968 random = (num_peers / find_peer_ctx->total) * i;
1969 random = random + GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, (num_peers / find_peer_ctx->total));
1970 if (random >= num_peers)
1972 random = random - num_peers;
1975 random = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers);
1977 test_find_peer->daemon = GNUNET_TESTING_daemon_get(pg, random);
1979 else /* If we have sent requests, choose peers with a low number of connections to send requests from */
1981 peer_count = GNUNET_CONTAINER_heap_remove_root(find_peer_ctx->peer_min_heap);
1982 GNUNET_CONTAINER_multihashmap_remove(find_peer_ctx->peer_hash, &peer_count->peer_id.hashPubKey, peer_count);
1983 test_find_peer->daemon = GNUNET_TESTING_daemon_get_by_id(pg, &peer_count->peer_id);
1984 GNUNET_assert(test_find_peer->daemon != NULL);
1987 test_find_peer->find_peer_context = find_peer_ctx;
1988 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_multiply(find_peer_offset, i), &send_find_peer_request, test_find_peer);
1991 if ((find_peer_ctx->peer_hash == NULL) && (find_peer_ctx->peer_min_heap == NULL))
1993 find_peer_ctx->peer_hash = GNUNET_CONTAINER_multihashmap_create(num_peers);
1994 find_peer_ctx->peer_min_heap = GNUNET_CONTAINER_heap_create(GNUNET_CONTAINER_HEAP_ORDER_MIN);
1998 GNUNET_CONTAINER_multihashmap_iterate(find_peer_ctx->peer_hash, &remove_peer_count, find_peer_ctx);
1999 GNUNET_CONTAINER_multihashmap_destroy(find_peer_ctx->peer_hash);
2000 find_peer_ctx->peer_hash = GNUNET_CONTAINER_multihashmap_create(num_peers);
2003 GNUNET_assert(0 == GNUNET_CONTAINER_multihashmap_size(find_peer_ctx->peer_hash));
2004 GNUNET_assert(0 == GNUNET_CONTAINER_heap_get_size(find_peer_ctx->peer_min_heap));
2009 * Set up some all of the put and get operations we want
2010 * to do. Allocate data structure for each, add to list,
2011 * then call actual insert functions.
2014 setup_puts_and_gets (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
2017 uint32_t temp_daemon;
2018 struct TestPutContext *test_put;
2019 struct TestGetContext *test_get;
2021 int remember[num_puts][num_peers];
2022 memset(&remember, 0, sizeof(int) * num_puts * num_peers);
2024 known_keys = GNUNET_malloc(sizeof(GNUNET_HashCode) * num_puts);
2025 for (i = 0; i < num_puts; i++)
2027 test_put = GNUNET_malloc(sizeof(struct TestPutContext));
2029 GNUNET_CRYPTO_hash_create_random (GNUNET_CRYPTO_QUALITY_WEAK, &known_keys[i]);
2030 temp_daemon = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers);
2031 test_put->daemon = GNUNET_TESTING_daemon_get(pg, temp_daemon);
2032 test_put->next = all_puts;
2033 all_puts = test_put;
2036 for (i = 0; i < num_gets; i++)
2038 test_get = GNUNET_malloc(sizeof(struct TestGetContext));
2039 test_get->uid = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_puts);
2041 while (remember[test_get->uid][temp_daemon] == 1)
2042 temp_daemon = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers);
2043 remember[test_get->uid][temp_daemon] = 1;
2045 test_get->daemon = GNUNET_TESTING_daemon_get(pg, GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers));
2046 test_get->next = all_gets;
2047 all_gets = test_get;
2050 /*GNUNET_SCHEDULER_cancel (die_task);*/
2051 die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, num_puts * 2),
2052 &end_badly, "from do puts");
2053 GNUNET_SCHEDULER_add_now (&do_put, all_puts);
2058 * Set up some all of the put and get operations we want
2059 * to do. Allocate data structure for each, add to list,
2060 * then call actual insert functions.
2063 continue_puts_and_gets (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
2067 struct TopologyIteratorContext *topo_ctx;
2068 struct FindPeerContext *find_peer_context;
2069 if (dhtlog_handle != NULL)
2071 if (settle_time >= 180 * 2)
2072 max = (settle_time / 180) - 2;
2075 for (i = 1; i < max; i++)
2077 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
2078 topo_ctx->current_iteration = i;
2079 topo_ctx->total_iterations = max;
2080 topo_ctx->peers_seen = GNUNET_CONTAINER_multihashmap_create(num_peers);
2081 //fprintf(stderr, "scheduled topology iteration in %d minutes\n", i);
2082 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MINUTES, i * 3), &capture_current_topology, topo_ctx);
2084 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
2085 topo_ctx->cont = &setup_puts_and_gets;
2086 topo_ctx->peers_seen = GNUNET_CONTAINER_multihashmap_create(num_peers);
2087 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, (settle_time + 90)), &capture_current_topology, topo_ctx);
2090 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, (settle_time + 90)), &setup_puts_and_gets, NULL);
2092 if (dhtlog_handle != NULL)
2093 dhtlog_handle->insert_round(DHT_ROUND_NORMAL, rounds_finished);
2095 if (GNUNET_YES == do_find_peer)
2097 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Scheduling find peer requests during \"settle\" time.\n");
2098 find_peer_context = GNUNET_malloc(sizeof(struct FindPeerContext));
2099 find_peer_context->count_peers_cb = &count_peers_cb;
2100 find_peer_context->endtime = GNUNET_TIME_relative_to_absolute(GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, settle_time));
2101 GNUNET_SCHEDULER_add_now(&schedule_find_peer_requests, find_peer_context);
2105 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Assuming automatic DHT find peer requests.\n");
2110 * Task to release DHT handles
2113 malicious_disconnect_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
2115 struct MaliciousContext *ctx = cls;
2116 outstanding_malicious--;
2117 malicious_completed++;
2118 ctx->disconnect_task = GNUNET_SCHEDULER_NO_TASK;
2119 GNUNET_DHT_disconnect(ctx->dht_handle);
2120 ctx->dht_handle = NULL;
2123 if (malicious_completed == malicious_getters + malicious_putters + malicious_droppers)
2125 GNUNET_SCHEDULER_cancel(die_task);
2126 fprintf(stderr, "Finished setting all malicious peers up, calling continuation!\n");
2127 if (dhtlog_handle != NULL)
2128 GNUNET_SCHEDULER_add_now (&continue_puts_and_gets, NULL);
2130 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, settle_time),
2131 &continue_puts_and_gets, NULL);
2137 * Task to release DHT handles
2140 malicious_done_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
2142 struct MaliciousContext *ctx = cls;
2143 GNUNET_SCHEDULER_cancel(ctx->disconnect_task);
2144 GNUNET_SCHEDULER_add_now(&malicious_disconnect_task, ctx);
2148 * Set up some data, and call API PUT function
2151 set_malicious (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
2153 struct MaliciousContext *ctx = cls;
2155 if (outstanding_malicious > DEFAULT_MAX_OUTSTANDING_GETS)
2157 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MILLISECONDS, 100), &set_malicious, ctx);
2161 if (ctx->dht_handle == NULL)
2163 ctx->dht_handle = GNUNET_DHT_connect(ctx->daemon->cfg, 1);
2164 outstanding_malicious++;
2167 GNUNET_assert(ctx->dht_handle != NULL);
2171 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Setting peer %s malicious type %d\n",
2172 ctx->daemon->shortname, ctx->malicious_type);
2175 switch (ctx->malicious_type)
2177 case GNUNET_MESSAGE_TYPE_DHT_MALICIOUS_GET:
2178 GNUNET_DHT_set_malicious_getter(ctx->dht_handle, malicious_get_frequency);
2179 GNUNET_SCHEDULER_add_now (&malicious_done_task, ctx);
2181 case GNUNET_MESSAGE_TYPE_DHT_MALICIOUS_PUT:
2182 GNUNET_DHT_set_malicious_putter(ctx->dht_handle, malicious_put_frequency);
2183 GNUNET_SCHEDULER_add_now (&malicious_done_task, ctx);
2185 case GNUNET_MESSAGE_TYPE_DHT_MALICIOUS_DROP:
2186 GNUNET_DHT_set_malicious_dropper(ctx->dht_handle);
2187 GNUNET_SCHEDULER_add_now (&malicious_done_task, ctx);
2193 ctx->disconnect_task = GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_UNIT_FOREVER_REL,
2194 &malicious_disconnect_task, ctx);
2198 * Select randomly from set of known peers,
2199 * set the desired number of peers to the
2200 * proper malicious types.
2203 setup_malicious_peers (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
2205 struct MaliciousContext *ctx;
2207 uint32_t temp_daemon;
2209 for (i = 0; i < malicious_getters; i++)
2211 ctx = GNUNET_malloc(sizeof(struct MaliciousContext));
2212 temp_daemon = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers);
2213 ctx->daemon = GNUNET_TESTING_daemon_get(pg, temp_daemon);
2214 ctx->malicious_type = GNUNET_MESSAGE_TYPE_DHT_MALICIOUS_GET;
2215 GNUNET_SCHEDULER_add_now (&set_malicious, ctx);
2219 for (i = 0; i < malicious_putters; i++)
2221 ctx = GNUNET_malloc(sizeof(struct MaliciousContext));
2222 temp_daemon = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers);
2223 ctx->daemon = GNUNET_TESTING_daemon_get(pg, temp_daemon);
2224 ctx->malicious_type = GNUNET_MESSAGE_TYPE_DHT_MALICIOUS_PUT;
2225 GNUNET_SCHEDULER_add_now (&set_malicious, ctx);
2229 for (i = 0; i < malicious_droppers; i++)
2231 ctx = GNUNET_malloc(sizeof(struct MaliciousContext));
2232 temp_daemon = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers);
2233 ctx->daemon = GNUNET_TESTING_daemon_get(pg, temp_daemon);
2234 ctx->malicious_type = GNUNET_MESSAGE_TYPE_DHT_MALICIOUS_DROP;
2235 GNUNET_SCHEDULER_add_now (&set_malicious, ctx);
2239 * If we have any malicious peers to set up,
2240 * the malicious callback should call continue_gets_and_puts
2242 if (malicious_getters + malicious_putters + malicious_droppers > 0)
2244 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Giving malicious set tasks some time before starting testing!\n");
2245 die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, (malicious_getters + malicious_putters + malicious_droppers) * 2),
2246 &end_badly, "from set malicious");
2248 else /* Otherwise, continue testing */
2250 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Scheduling continue_puts_and_gets now!\n");
2251 GNUNET_SCHEDULER_add_now (&continue_puts_and_gets, NULL);
2256 * This function is called whenever a connection attempt is finished between two of
2257 * the started peers (started with GNUNET_TESTING_daemons_start). The total
2258 * number of times this function is called should equal the number returned
2259 * from the GNUNET_TESTING_connect_topology call.
2261 * The emsg variable is NULL on success (peers connected), and non-NULL on
2262 * failure (peers failed to connect).
2265 topology_callback (void *cls,
2266 const struct GNUNET_PeerIdentity *first,
2267 const struct GNUNET_PeerIdentity *second,
2269 const struct GNUNET_CONFIGURATION_Handle *first_cfg,
2270 const struct GNUNET_CONFIGURATION_Handle *second_cfg,
2271 struct GNUNET_TESTING_Daemon *first_daemon,
2272 struct GNUNET_TESTING_Daemon *second_daemon,
2275 struct TopologyIteratorContext *topo_ctx;
2278 total_connections++;
2280 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "connected peer %s to peer %s, distance %u\n",
2281 first_daemon->shortname,
2282 second_daemon->shortname,
2288 failed_connections++;
2290 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Failed to connect peer %s to peer %s with error :\n%s\n",
2291 first_daemon->shortname,
2292 second_daemon->shortname, emsg);
2296 GNUNET_assert(peer_connect_meter != NULL);
2297 if (GNUNET_YES == update_meter(peer_connect_meter))
2300 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2301 "Created %d total connections, which is our target number! Starting next phase of testing.\n",
2304 if (dhtlog_handle != NULL)
2306 dhtlog_handle->update_connections (trialuid, total_connections);
2307 dhtlog_handle->insert_topology(expected_connections);
2310 GNUNET_SCHEDULER_cancel (die_task);
2311 /*die_task = GNUNET_SCHEDULER_add_delayed (DEFAULT_TIMEOUT,
2312 &end_badly, "from setup puts/gets");*/
2313 if ((dhtlog_handle != NULL) && (settle_time > 0))
2315 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
2316 topo_ctx->cont = &setup_malicious_peers;
2317 topo_ctx->peers_seen = GNUNET_CONTAINER_multihashmap_create(num_peers);
2318 //topo_ctx->cont = &continue_puts_and_gets;
2319 GNUNET_SCHEDULER_add_now(&capture_current_topology, topo_ctx);
2323 GNUNET_SCHEDULER_add_now(&setup_malicious_peers, NULL);
2324 /*GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, settle_time),
2325 &continue_puts_and_gets, NULL);*/
2328 else if (total_connections + failed_connections == expected_connections)
2330 GNUNET_SCHEDULER_cancel (die_task);
2331 die_task = GNUNET_SCHEDULER_add_now (&end_badly, "from topology_callback (too many failed connections)");
2336 peers_started_callback (void *cls,
2337 const struct GNUNET_PeerIdentity *id,
2338 const struct GNUNET_CONFIGURATION_Handle *cfg,
2339 struct GNUNET_TESTING_Daemon *d, const char *emsg)
2343 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Failed to start daemon with error: `%s'\n",
2347 GNUNET_assert (id != NULL);
2350 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Started daemon %llu out of %llu\n",
2351 (num_peers - peers_left) + 1, num_peers);
2356 if (GNUNET_YES == update_meter(peer_start_meter))
2359 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2360 "All %d daemons started, now connecting peers!\n",
2363 GNUNET_SCHEDULER_cancel (die_task);
2365 expected_connections = UINT_MAX;
2366 if ((pg != NULL) && (peers_left == 0))
2368 expected_connections = GNUNET_TESTING_connect_topology (pg, connect_topology, connect_topology_option, connect_topology_option_modifier, NULL, NULL);
2370 peer_connect_meter = create_meter(expected_connections, "Peer connection ", GNUNET_YES);
2371 fprintf(stderr, "Have %d expected connections\n", expected_connections);
2374 if (expected_connections == GNUNET_SYSERR)
2376 die_task = GNUNET_SCHEDULER_add_now (&end_badly, "from connect topology (bad return)");
2379 die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, DEFAULT_CONNECT_TIMEOUT * expected_connections),
2380 &end_badly, "from connect topology (timeout)");
2389 peers_left = num_peers; /* Reset counter */
2390 if (GNUNET_TESTING_create_topology (pg, topology, blacklist_topology, blacklist_transports) != GNUNET_SYSERR)
2393 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2394 "Topology set up, now starting peers!\n");
2396 GNUNET_TESTING_daemons_continue_startup(pg);
2400 GNUNET_SCHEDULER_cancel (die_task);
2401 die_task = GNUNET_SCHEDULER_add_now (&end_badly, "from create topology (bad return)");
2403 GNUNET_free_non_null(blacklist_transports);
2404 GNUNET_SCHEDULER_cancel (die_task);
2405 die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(seconds_per_peer_start, num_peers),
2406 &end_badly, "from continue startup (timeout)");
2410 * Callback indicating that the hostkey was created for a peer.
2413 * @param id the peer identity
2414 * @param d the daemon handle (pretty useless at this point, remove?)
2415 * @param emsg non-null on failure
2418 hostkey_callback (void *cls,
2419 const struct GNUNET_PeerIdentity *id,
2420 struct GNUNET_TESTING_Daemon *d,
2425 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Hostkey callback received error: %s\n", emsg);
2429 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2430 "Hostkey (%d/%d) created for peer `%s'\n",
2431 num_peers - peers_left, num_peers, GNUNET_i2s(id));
2435 if (GNUNET_YES == update_meter(hostkey_meter))
2438 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2439 "All %d hostkeys created, now creating topology!\n",
2442 GNUNET_SCHEDULER_cancel (die_task);
2443 /* Set up task in case topology creation doesn't finish
2444 * within a reasonable amount of time */
2445 die_task = GNUNET_SCHEDULER_add_delayed (DEFAULT_TOPOLOGY_TIMEOUT,
2446 &end_badly, "from create_topology");
2447 GNUNET_SCHEDULER_add_now(&create_topology, NULL);
2456 const char *cfgfile, const struct GNUNET_CONFIGURATION_Handle *cfg)
2459 struct GNUNET_DHTLOG_TrialInfo trial_info;
2460 struct GNUNET_TESTING_Host *hosts;
2461 struct GNUNET_TESTING_Host *temphost;
2462 struct GNUNET_TESTING_Host *tempnext;
2464 char *connect_topology_str;
2465 char *blacklist_topology_str;
2466 char *connect_topology_option_str;
2467 char *connect_topology_option_modifier_string;
2469 char *topology_percentage_str;
2470 float topology_percentage;
2471 char *topology_probability_str;
2473 float topology_probability;
2474 unsigned long long temp_config_number;
2475 unsigned long long trial_to_run;
2478 int strict_kademlia;
2482 char *churn_filename;
2489 rounds_finished = 0;
2490 memset(&trial_info, 0, sizeof(struct GNUNET_DHTLOG_TrialInfo));
2491 /* Get path from configuration file */
2492 if (GNUNET_YES != GNUNET_CONFIGURATION_get_value_string(cfg, "paths", "servicehome", &test_directory))
2499 * Get DHT specific testing options.
2501 if ((GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht_testing", "mysql_logging")) ||
2502 (GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht_testing", "mysql_logging_extended")))
2504 dhtlog_handle = GNUNET_DHTLOG_connect(cfg);
2505 if (dhtlog_handle == NULL)
2507 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2508 "Could not connect to mysql server for logging, will NOT log dht operations!");
2514 stop_closest = GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht", "stop_on_closest");
2515 if (stop_closest == GNUNET_SYSERR)
2516 stop_closest = GNUNET_NO;
2518 stop_found = GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht", "stop_found");
2519 if (stop_found == GNUNET_SYSERR)
2520 stop_found = GNUNET_NO;
2522 strict_kademlia = GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht", "strict_kademlia");
2523 if (strict_kademlia == GNUNET_SYSERR)
2524 strict_kademlia = GNUNET_NO;
2527 GNUNET_CONFIGURATION_get_value_string (cfg, "dht_testing", "comment",
2529 trialmessage = NULL;
2532 /** Check for a churn file to do churny simulation */
2534 GNUNET_CONFIGURATION_get_value_string(cfg, "dht_testing", "churn_file",
2537 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Reading churn data from %s\n", churn_filename);
2538 if (GNUNET_OK != GNUNET_DISK_file_test (churn_filename))
2540 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Error reading churn file!\n");
2541 GNUNET_free_non_null(trialmessage);
2542 GNUNET_free(churn_filename);
2545 if ((0 != STAT (churn_filename, &frstat)) || (frstat.st_size == 0))
2547 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
2548 "Could not open file specified for churn data, ending test!");
2550 GNUNET_free_non_null(trialmessage);
2551 GNUNET_free(churn_filename);
2555 churn_data = GNUNET_malloc_large (frstat.st_size);
2556 GNUNET_assert(churn_data != NULL);
2557 if (frstat.st_size !=
2558 GNUNET_DISK_fn_read (churn_filename, churn_data, frstat.st_size))
2560 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
2561 "Could not read file %s specified for churn, ending test!", churn_filename);
2562 GNUNET_free (churn_filename);
2563 GNUNET_free (churn_data);
2564 GNUNET_free_non_null(trialmessage);
2568 GNUNET_free_non_null(churn_filename);
2572 /* Read the first line */
2573 while (count < frstat.st_size)
2576 if (((churn_data[count] == '\n')) && (buf != &churn_data[count]))
2578 churn_data[count] = '\0';
2579 if (1 != sscanf(buf, "%u", &churn_rounds))
2581 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Failed to read number of rounds from churn file, ending test!\n");
2583 GNUNET_free_non_null(trialmessage);
2584 GNUNET_free_non_null(churn_data);
2587 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Read %u rounds from churn file\n", churn_rounds);
2588 buf = &churn_data[count + 1];
2589 churn_array = GNUNET_malloc(sizeof(unsigned int) * churn_rounds);
2590 break; /* Done with this part */
2594 if (GNUNET_OK != GNUNET_CONFIGURATION_get_value_number(cfg, "dht_testing", "churns_per_round", &churns_per_round))
2596 churns_per_round = (unsigned long long)churn_rounds;
2600 while ((count < frstat.st_size) && (line_number < churn_rounds))
2603 if (((churn_data[count] == '\n')) && (buf != &churn_data[count]))
2605 churn_data[count] = '\0';
2607 ret = sscanf(buf, "%u", &churn_array[line_number]);
2610 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Read %u peers in round %u\n", churn_array[line_number], line_number);
2615 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Error reading line `%s' in hostfile\n", buf);
2616 buf = &churn_data[count + 1];
2619 buf = &churn_data[count + 1];
2621 else if (churn_data[count] == '\n') /* Blank line */
2622 buf = &churn_data[count + 1];
2625 GNUNET_free_non_null(churn_data);
2627 /** Check for a hostfile containing user@host:port triples */
2629 GNUNET_CONFIGURATION_get_value_string (cfg, "testing", "hostfile",
2635 if (hostfile != NULL)
2637 if (GNUNET_OK != GNUNET_DISK_file_test (hostfile))
2638 GNUNET_DISK_fn_write (hostfile, NULL, 0, GNUNET_DISK_PERM_USER_READ
2639 | GNUNET_DISK_PERM_USER_WRITE);
2640 if ((0 != STAT (hostfile, &frstat)) || (frstat.st_size == 0))
2642 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
2643 "Could not open file specified for host list, ending test!");
2645 GNUNET_free_non_null(trialmessage);
2646 GNUNET_free(hostfile);
2650 data = GNUNET_malloc_large (frstat.st_size);
2651 GNUNET_assert(data != NULL);
2652 if (frstat.st_size !=
2653 GNUNET_DISK_fn_read (hostfile, data, frstat.st_size))
2655 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
2656 "Could not read file %s specified for host list, ending test!", hostfile);
2657 GNUNET_free (hostfile);
2659 GNUNET_free_non_null(trialmessage);
2663 GNUNET_free_non_null(hostfile);
2667 while (count < frstat.st_size)
2670 /* if (((data[count] == '\n') || (data[count] == '\0')) && (buf != &data[count]))*/
2671 if (((data[count] == '\n')) && (buf != &data[count]))
2674 temphost = GNUNET_malloc(sizeof(struct GNUNET_TESTING_Host));
2675 ret = sscanf(buf, "%a[a-zA-Z0-9]@%a[a-zA-Z0-9.]:%hd", &temphost->username, &temphost->hostname, &temphost->port);
2678 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Successfully read host %s, port %d and user %s from file\n", temphost->hostname, temphost->port, temphost->username);
2682 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Error reading line `%s' in hostfile\n", buf);
2683 GNUNET_free(temphost);
2684 buf = &data[count + 1];
2687 /* temphost->hostname = buf; */
2688 temphost->next = hosts;
2690 buf = &data[count + 1];
2692 else if ((data[count] == '\n') || (data[count] == '\0'))
2693 buf = &data[count + 1];
2698 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "malicious_getters",
2699 &malicious_getters))
2700 malicious_getters = 0;
2703 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "malicious_putters",
2704 &malicious_putters))
2705 malicious_putters = 0;
2708 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "malicious_droppers",
2709 &malicious_droppers))
2710 malicious_droppers = 0;
2713 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "settle_time",
2717 if (GNUNET_SYSERR ==
2718 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "num_puts",
2720 num_puts = num_peers;
2722 if (GNUNET_SYSERR ==
2723 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "num_gets",
2725 num_gets = num_peers;
2728 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "find_peer_delay",
2729 &temp_config_number))
2730 find_peer_delay = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_config_number);
2732 find_peer_delay = DEFAULT_FIND_PEER_DELAY;
2735 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "concurrent_find_peers",
2736 &temp_config_number))
2737 max_outstanding_find_peers = temp_config_number;
2739 max_outstanding_find_peers = DEFAULT_MAX_OUTSTANDING_FIND_PEERS;
2742 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "get_timeout",
2743 &temp_config_number))
2744 get_timeout = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_config_number);
2746 get_timeout = DEFAULT_GET_TIMEOUT;
2749 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "concurrent_puts",
2750 &temp_config_number))
2751 max_outstanding_puts = temp_config_number;
2753 max_outstanding_puts = DEFAULT_MAX_OUTSTANDING_PUTS;
2756 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "concurrent_gets",
2757 &temp_config_number))
2758 max_outstanding_gets = temp_config_number;
2760 max_outstanding_gets = DEFAULT_MAX_OUTSTANDING_GETS;
2763 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "timeout",
2764 &temp_config_number))
2765 all_get_timeout = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_config_number);
2767 all_get_timeout.rel_value = get_timeout.rel_value * num_gets;
2770 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "get_delay",
2771 &temp_config_number))
2772 get_delay = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_config_number);
2774 get_delay = DEFAULT_GET_DELAY;
2777 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "put_delay",
2778 &temp_config_number))
2779 put_delay = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_config_number);
2781 put_delay = DEFAULT_PUT_DELAY;
2784 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "peer_start_timeout",
2785 &temp_config_number))
2786 seconds_per_peer_start = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_config_number);
2788 seconds_per_peer_start = DEFAULT_SECONDS_PER_PEER_START;
2791 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "data_size",
2792 &temp_config_number))
2793 test_data_size = temp_config_number;
2795 test_data_size = DEFAULT_TEST_DATA_SIZE;
2798 * Get testing related options.
2800 if (GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno(cfg, "DHT_TESTING", "REPLICATE_SAME"))
2801 replicate_same = GNUNET_YES;
2804 * Get testing related options.
2806 if (GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno(cfg, "DHT_TESTING", "GET_FROM_SAME"))
2807 get_from_same = GNUNET_YES;
2810 if (GNUNET_NO == GNUNET_CONFIGURATION_get_value_time (cfg, "DHT_TESTING",
2811 "MALICIOUS_GET_FREQUENCY",
2812 &malicious_get_frequency))
2813 malicious_get_frequency = DEFAULT_MALICIOUS_GET_FREQUENCY;
2816 if (GNUNET_NO == GNUNET_CONFIGURATION_get_value_time (cfg, "DHT_TESTING",
2817 "MALICIOUS_PUT_FREQUENCY",
2818 &malicious_put_frequency))
2819 malicious_put_frequency = DEFAULT_MALICIOUS_PUT_FREQUENCY;
2822 /* The normal behavior of the DHT is to do find peer requests
2823 * on its own. Only if this is explicitly turned off should
2824 * the testing driver issue find peer requests (even though
2825 * this is likely the default when testing).
2828 GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht",
2831 do_find_peer = GNUNET_YES;
2835 GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht",
2838 in_dht_replication = GNUNET_YES;
2841 if (GNUNET_YES != GNUNET_CONFIGURATION_get_value_number (cfg, "DHT_TESTING",
2848 if (GNUNET_YES == GNUNET_CONFIGURATION_get_value_number (cfg, "DHT_TESTING",
2850 &temp_config_number))
2852 find_peer_delay = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_config_number);
2855 find_peer_delay = DEFAULT_FIND_PEER_DELAY;
2857 if (GNUNET_YES != GNUNET_CONFIGURATION_get_value_number(cfg, "DHT_TESTING", "ROUND_DELAY", &round_delay))
2860 if (GNUNET_NO == GNUNET_CONFIGURATION_get_value_number (cfg, "DHT_TESTING",
2861 "OUTSTANDING_FIND_PEERS",
2862 &max_outstanding_find_peers))
2863 max_outstanding_find_peers = DEFAULT_MAX_OUTSTANDING_FIND_PEERS;
2865 if (GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht", "strict_kademlia"))
2866 max_outstanding_find_peers = max_outstanding_find_peers * 1;
2868 find_peer_offset = GNUNET_TIME_relative_divide (find_peer_delay, max_outstanding_find_peers);
2870 if (GNUNET_SYSERR ==
2871 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "num_rounds",
2877 topology_str = NULL;
2879 GNUNET_CONFIGURATION_get_value_string(cfg, "testing", "topology",
2880 &topology_str)) && (GNUNET_NO == GNUNET_TESTING_topology_get(&topology, topology_str)))
2882 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2883 "Invalid topology `%s' given for section %s option %s\n", topology_str, "TESTING", "TOPOLOGY");
2884 topology = GNUNET_TESTING_TOPOLOGY_CLIQUE; /* Defaults to NONE, so set better default here */
2888 GNUNET_CONFIGURATION_get_value_string (cfg, "testing", "percentage",
2889 &topology_percentage_str))
2890 topology_percentage = 0.5;
2893 topology_percentage = atof (topology_percentage_str);
2894 GNUNET_free(topology_percentage_str);
2898 GNUNET_CONFIGURATION_get_value_string (cfg, "testing", "probability",
2899 &topology_probability_str))
2900 topology_probability = 0.5;
2903 topology_probability = atof (topology_probability_str);
2904 GNUNET_free(topology_probability_str);
2908 GNUNET_CONFIGURATION_get_value_string(cfg, "testing", "connect_topology",
2909 &connect_topology_str)) && (GNUNET_NO == GNUNET_TESTING_topology_get(&connect_topology, connect_topology_str)))
2911 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2912 "Invalid connect topology `%s' given for section %s option %s\n", connect_topology_str, "TESTING", "CONNECT_TOPOLOGY");
2914 GNUNET_free_non_null(connect_topology_str);
2917 GNUNET_CONFIGURATION_get_value_string(cfg, "testing", "connect_topology_option",
2918 &connect_topology_option_str)) && (GNUNET_NO == GNUNET_TESTING_topology_option_get(&connect_topology_option, connect_topology_option_str)))
2920 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2921 "Invalid connect topology option `%s' given for section %s option %s\n", connect_topology_option_str, "TESTING", "CONNECT_TOPOLOGY_OPTION");
2922 connect_topology_option = GNUNET_TESTING_TOPOLOGY_OPTION_ALL; /* Defaults to NONE, set to ALL */
2924 GNUNET_free_non_null(connect_topology_option_str);
2927 GNUNET_CONFIGURATION_get_value_string (cfg, "testing", "connect_topology_option_modifier",
2928 &connect_topology_option_modifier_string))
2930 if (sscanf(connect_topology_option_modifier_string, "%lf", &connect_topology_option_modifier) != 1)
2932 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2933 _("Invalid value `%s' for option `%s' in section `%s': expected float\n"),
2934 connect_topology_option_modifier_string,
2935 "connect_topology_option_modifier",
2938 GNUNET_free (connect_topology_option_modifier_string);
2941 if (GNUNET_YES != GNUNET_CONFIGURATION_get_value_string (cfg, "testing", "blacklist_transports",
2942 &blacklist_transports))
2943 blacklist_transports = NULL;
2946 GNUNET_CONFIGURATION_get_value_string(cfg, "testing", "blacklist_topology",
2947 &blacklist_topology_str)) &&
2948 (GNUNET_NO == GNUNET_TESTING_topology_get(&blacklist_topology, blacklist_topology_str)))
2950 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2951 "Invalid topology `%s' given for section %s option %s\n", topology_str, "TESTING", "BLACKLIST_TOPOLOGY");
2953 GNUNET_free_non_null(topology_str);
2954 GNUNET_free_non_null(blacklist_topology_str);
2956 /* Get number of peers to start from configuration */
2957 if (GNUNET_SYSERR ==
2958 GNUNET_CONFIGURATION_get_value_number (cfg, "testing", "num_peers",
2961 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2962 "Number of peers must be specified in section %s option %s\n", topology_str, "TESTING", "NUM_PEERS");
2964 GNUNET_assert(num_peers > 0 && num_peers < ULONG_MAX);
2965 /* Set peers_left so we know when all peers started */
2966 peers_left = num_peers;
2969 /* Set up a task to end testing if peer start fails */
2970 die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(seconds_per_peer_start, num_peers),
2971 &end_badly, "didn't generate all hostkeys within allowed startup time!");
2973 if (dhtlog_handle == NULL)
2974 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2975 "dhtlog_handle is NULL!");
2977 trial_info.other_identifier = (unsigned int)trial_to_run;
2978 trial_info.num_nodes = peers_left;
2979 trial_info.topology = topology;
2980 trial_info.blacklist_topology = blacklist_topology;
2981 trial_info.connect_topology = connect_topology;
2982 trial_info.connect_topology_option = connect_topology_option;
2983 trial_info.connect_topology_option_modifier = connect_topology_option_modifier;
2984 trial_info.topology_percentage = topology_percentage;
2985 trial_info.topology_probability = topology_probability;
2986 trial_info.puts = num_puts;
2987 trial_info.gets = num_gets;
2988 trial_info.concurrent = max_outstanding_gets;
2989 trial_info.settle_time = settle_time;
2990 trial_info.num_rounds = 1;
2991 trial_info.malicious_getters = malicious_getters;
2992 trial_info.malicious_putters = malicious_putters;
2993 trial_info.malicious_droppers = malicious_droppers;
2994 trial_info.malicious_get_frequency = malicious_get_frequency.rel_value;
2995 trial_info.malicious_put_frequency = malicious_put_frequency.rel_value;
2996 trial_info.stop_closest = stop_closest;
2997 trial_info.stop_found = stop_found;
2998 trial_info.strict_kademlia = strict_kademlia;
3000 if (trialmessage != NULL)
3001 trial_info.message = trialmessage;
3003 trial_info.message = "";
3005 if (dhtlog_handle != NULL)
3006 dhtlog_handle->insert_trial(&trial_info);
3008 GNUNET_free_non_null(trialmessage);
3010 hostkey_meter = create_meter(peers_left, "Hostkeys created ", GNUNET_YES);
3011 peer_start_meter = create_meter(peers_left, "Peers started ", GNUNET_YES);
3013 put_meter = create_meter(num_puts, "Puts completed ", GNUNET_YES);
3014 get_meter = create_meter(num_gets, "Gets completed ", GNUNET_YES);
3015 pg = GNUNET_TESTING_daemons_start (cfg,
3017 GNUNET_TIME_relative_multiply(seconds_per_peer_start, num_peers),
3018 &hostkey_callback, NULL,
3019 &peers_started_callback, NULL,
3020 &topology_callback, NULL,
3023 while (temphost != NULL)
3025 tempnext = temphost->next;
3026 GNUNET_free (temphost->username);
3027 GNUNET_free (temphost->hostname);
3028 GNUNET_free (temphost);
3029 temphost = tempnext;
3034 main (int argc, char *argv[])
3037 struct GNUNET_GETOPT_CommandLineOption options[] = {
3038 GNUNET_GETOPT_OPTION_END
3041 ret = GNUNET_PROGRAM_run (argc,
3042 argv, "gnunet-dht-driver", "nohelp",
3043 options, &run, &ok);
3045 if (ret != GNUNET_OK)
3047 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "`gnunet-dht-driver': Failed with error code %d\n", ret);
3051 * Need to remove base directory, subdirectories taken care
3052 * of by the testing framework.
3054 if (GNUNET_DISK_directory_remove (test_directory) != GNUNET_OK)
3056 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Failed to remove testing directory %s\n", test_directory);
3061 /* end of gnunet-dht-driver.c */