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;
382 * Time to allow for GET requests to be sent to service.
384 static struct GNUNET_TIME_Relative get_delay;
387 * Time to allow for PUT requests to be sent to service.
389 static struct GNUNET_TIME_Relative put_delay;
392 * Delay between sending find peer requests (if
393 * handled by the driver, no effect if sent by service).
395 static struct GNUNET_TIME_Relative find_peer_delay;
398 * Time between find peer requests
399 * (find_peer_delay / max_outstanding_find_peer)
401 static struct GNUNET_TIME_Relative find_peer_offset;
404 * How many seconds to allow each peer to start.
406 static struct GNUNET_TIME_Relative seconds_per_peer_start;
409 * Boolean value, should the driver issue find peer requests
410 * (GNUNET_YES) or should it be left to the service (GNUNET_NO)
412 static unsigned int do_find_peer;
415 * Boolean value, should replication be done by the dht
416 * service (GNUNET_YES) or by the driver (GNUNET_NO)
418 static unsigned int in_dht_replication;
421 * Size of test data to insert/retrieve during testing.
423 static unsigned long long test_data_size = DEFAULT_TEST_DATA_SIZE;
426 * Maximum number of concurrent PUT requests.
428 static unsigned long long max_outstanding_puts = DEFAULT_MAX_OUTSTANDING_PUTS;
431 * Maximum number of concurrent GET requests.
433 static unsigned long long max_outstanding_gets = DEFAULT_MAX_OUTSTANDING_GETS;
436 * Number of nodes issuing malicious GET messages.
438 static unsigned long long malicious_getters;
441 * Maximum number of concurrent find peer messages being sent.
443 static unsigned long long max_outstanding_find_peers;
446 * Number of nodes issuing malicious PUT messages.
448 static unsigned long long malicious_putters;
451 * Time (in seconds) to delay between rounds.
453 static unsigned long long round_delay;
456 * How many malicious droppers to seed in the network.
458 static unsigned long long malicious_droppers;
461 * Bloom filter to restrict malicious nodes chosen.
463 struct GNUNET_CONTAINER_BloomFilter *malicious_bloom;
466 * Whether malicious droppers should be chosen based on proximity to a key.
468 static int malicious_sybil;
471 * Target for the malicious sybil nodes (choose the closest to this key).
473 static GNUNET_HashCode sybil_target;
476 * How often to send malicious GET messages.
478 static struct GNUNET_TIME_Relative malicious_get_frequency;
481 * How often to send malicious PUT messages.
483 static struct GNUNET_TIME_Relative malicious_put_frequency;
486 * How long to send find peer requests.
488 static unsigned long long settle_time;
491 * Handle to the dhtlog service.
493 static struct GNUNET_DHTLOG_Handle *dhtlog_handle;
496 * Replication value for GET requests.
498 static unsigned long long get_replication;
501 * Replication value for PUT requests.
503 static unsigned long long put_replication;
506 * If GNUNET_YES, insert data at the same peers every time.
507 * Otherwise, choose a new random peer to insert at each time.
509 static unsigned int replicate_same;
512 * If GNUNET_YES, issue GET requests at the same peers every time.
513 * Otherwise, choose a new random peer/data combination to search
516 static unsigned int get_from_same;
519 * Should malicious peers be set after allowing for settle time?
520 * Default is to set them malicious after initial connection setup.
522 static unsigned int malicious_after_settle;
525 * Number of rounds for testing (PUTS + GETS)
527 static unsigned long long total_rounds;
530 * Target number of connections (will stop sending find peer
531 * messages when this number is exceeded)
533 static unsigned long long target_total_connections;
536 * Number of rounds already run
538 static unsigned int rounds_finished;
541 * Number of rounds of churn to read from the file (first line, should be a single number).
543 static unsigned int churn_rounds;
546 * Current round we are in for churn, tells us how many peers to connect/disconnect.
548 static unsigned int current_churn_round;
551 * Number of times to churn per round
553 static unsigned long long churns_per_round;
556 * Array of churn values.
558 static unsigned int *churn_array;
561 * Hash map of stats contexts.
563 static struct GNUNET_CONTAINER_MultiHashMap *stats_map;
566 * LL of malicious settings.
568 struct MaliciousContext *all_malicious;
571 * List of GETS to perform
573 struct TestGetContext *all_gets;
576 * List of PUTS to perform
578 struct TestPutContext *all_puts;
581 * Directory to store temporary data in, defined in config file
583 static char *test_directory;
586 * Variable used to store the number of connections we should wait for.
588 static unsigned int expected_connections;
591 * Variable used to keep track of how many peers aren't yet started.
593 static unsigned long long peers_left;
596 * Handle to the set of all peers run for this test.
598 static struct GNUNET_TESTING_PeerGroup *pg;
602 * Global config handle.
604 static const struct GNUNET_CONFIGURATION_Handle *config;
607 * Total number of peers to run, set based on config file.
609 static unsigned long long num_peers;
612 * Total number of items to insert.
614 static unsigned long long num_puts;
617 * How many puts do we currently have in flight?
619 static unsigned long long outstanding_puts;
622 * How many puts are done?
624 static unsigned long long puts_completed;
627 * Total number of items to attempt to get.
629 static unsigned long long num_gets;
632 * How many puts do we currently have in flight?
634 static unsigned long long outstanding_gets;
637 * How many gets are done?
639 static unsigned long long gets_completed;
642 * How many gets failed?
644 static unsigned long long gets_failed;
647 * How many malicious control messages do
648 * we currently have in flight?
650 static unsigned long long outstanding_malicious;
653 * How many set malicious peers are done?
655 static unsigned long long malicious_completed;
658 * Global used to count how many connections we have currently
659 * been notified about (how many times has topology_callback been called
662 static unsigned int total_connections;
665 * Global used to count how many failed connections we have
666 * been notified about (how many times has topology_callback
667 * been called with failure?)
669 static unsigned int failed_connections;
671 /* Task handle to use to schedule shutdown if something goes wrong */
672 GNUNET_SCHEDULER_TaskIdentifier die_task;
674 static char *blacklist_transports;
676 static enum GNUNET_TESTING_Topology topology;
678 static enum GNUNET_TESTING_Topology blacklist_topology = GNUNET_TESTING_TOPOLOGY_NONE; /* Don't do any blacklisting */
680 static enum GNUNET_TESTING_Topology connect_topology = GNUNET_TESTING_TOPOLOGY_NONE; /* NONE actually means connect all allowed peers */
682 static enum GNUNET_TESTING_TopologyOption connect_topology_option = GNUNET_TESTING_TOPOLOGY_OPTION_ALL;
684 static double connect_topology_option_modifier = 0.0;
686 static struct ProgressMeter *hostkey_meter;
688 static struct ProgressMeter *peer_start_meter;
690 static struct ProgressMeter *peer_connect_meter;
692 static struct ProgressMeter *put_meter;
694 static struct ProgressMeter *get_meter;
696 static GNUNET_HashCode *known_keys;
698 /* Global return value (0 for success, anything else for failure) */
702 * Create a meter to keep track of the progress of some task.
704 * @param total the total number of items to complete
705 * @param start_string a string to prefix the meter with (if printing)
706 * @param print GNUNET_YES to print the meter, GNUNET_NO to count
709 * @return the progress meter
711 static struct ProgressMeter *
712 create_meter(unsigned int total, char * start_string, int print)
714 struct ProgressMeter *ret;
715 ret = GNUNET_malloc(sizeof(struct ProgressMeter));
718 ret->modnum = total / 4;
719 ret->dotnum = (total / 50) + 1;
720 if (start_string != NULL)
721 ret->startup_string = GNUNET_strdup(start_string);
723 ret->startup_string = GNUNET_strdup("");
729 * Update progress meter (increment by one).
731 * @param meter the meter to update and print info for
733 * @return GNUNET_YES if called the total requested,
734 * GNUNET_NO if more items expected
737 update_meter(struct ProgressMeter *meter)
739 if (meter->print == GNUNET_YES)
741 if (meter->completed % meter->modnum == 0)
743 if (meter->completed == 0)
745 fprintf(stdout, "%sProgress: [0%%", meter->startup_string);
748 fprintf(stdout, "%d%%", (int)(((float)meter->completed / meter->total) * 100));
750 else if (meter->completed % meter->dotnum == 0)
751 fprintf(stdout, ".");
753 if (meter->completed + 1 == meter->total)
754 fprintf(stdout, "%d%%]\n", 100);
759 if (meter->completed == meter->total)
765 * Reset progress meter.
767 * @param meter the meter to reset
769 * @return GNUNET_YES if meter reset,
770 * GNUNET_SYSERR on error
773 reset_meter(struct ProgressMeter *meter)
776 return GNUNET_SYSERR;
778 meter->completed = 0;
783 * Release resources for meter
785 * @param meter the meter to free
788 free_meter(struct ProgressMeter *meter)
790 GNUNET_free_non_null (meter->startup_string);
795 * Check whether peers successfully shut down.
798 shutdown_callback (void *cls,
809 * Task to release DHT handles for PUT
812 put_disconnect_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
814 struct TestPutContext *test_put = cls;
815 test_put->disconnect_task = GNUNET_SCHEDULER_NO_TASK;
816 GNUNET_DHT_disconnect(test_put->dht_handle);
817 test_put->dht_handle = NULL;
818 if (replicate_same == GNUNET_NO)
819 test_put->daemon = GNUNET_TESTING_daemon_get(pg, GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers));
823 * Function scheduled to be run on the successful completion of this
827 finish_testing (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
829 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Ending test normally!\n", (char *)cls);
830 GNUNET_assert (pg != NULL);
831 struct TestPutContext *test_put = all_puts;
832 struct TestGetContext *test_get = all_gets;
834 while (test_put != NULL)
836 if (test_put->disconnect_task != GNUNET_SCHEDULER_NO_TASK)
837 GNUNET_SCHEDULER_cancel(test_put->disconnect_task);
838 if (test_put->dht_handle != NULL)
839 GNUNET_DHT_disconnect(test_put->dht_handle);
840 test_put = test_put->next;
843 while (test_get != NULL)
845 if (test_get->disconnect_task != GNUNET_SCHEDULER_NO_TASK)
846 GNUNET_SCHEDULER_cancel(test_get->disconnect_task);
847 if (test_get->get_handle != NULL)
848 GNUNET_DHT_get_stop(test_get->get_handle);
849 if (test_get->dht_handle != NULL)
850 GNUNET_DHT_disconnect(test_get->dht_handle);
851 test_get = test_get->next;
854 GNUNET_TESTING_daemons_stop (pg, DEFAULT_TIMEOUT, &shutdown_callback, NULL);
856 if (dhtlog_handle != NULL)
858 fprintf(stderr, "Update trial endtime\n");
859 dhtlog_handle->update_trial (gets_completed);
860 GNUNET_DHTLOG_disconnect(dhtlog_handle);
861 dhtlog_handle = NULL;
864 if (hostkey_meter != NULL)
865 free_meter(hostkey_meter);
866 if (peer_start_meter != NULL)
867 free_meter(peer_start_meter);
868 if (peer_connect_meter != NULL)
869 free_meter(peer_connect_meter);
870 if (put_meter != NULL)
871 free_meter(put_meter);
872 if (get_meter != NULL)
873 free_meter(get_meter);
879 * Callback for iterating over all the peer connections of a peer group.
882 log_topology_cb (void *cls,
883 const struct GNUNET_PeerIdentity *first,
884 const struct GNUNET_PeerIdentity *second,
887 struct TopologyIteratorContext *topo_ctx = cls;
888 if ((first != NULL) && (second != NULL))
890 /* GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "According to CORE, peer %s is connected to %s\n", GNUNET_i2s(first), GNUNET_h2s(&second->hashPubKey));*/
891 if ((topo_ctx->peers_seen != NULL) && (GNUNET_NO == GNUNET_CONTAINER_multihashmap_contains(topo_ctx->peers_seen, &first->hashPubKey)))
893 GNUNET_CONTAINER_multihashmap_put(topo_ctx->peers_seen, &first->hashPubKey, NULL, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
894 topo_ctx->total_peers++;
896 topo_ctx->total_connections++;
897 if (GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno(config, "dht_testing", "mysql_logging"))
898 dhtlog_handle->insert_extended_topology(first, second);
902 GNUNET_assert(dhtlog_handle != NULL);
903 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);
904 dhtlog_handle->update_topology(topo_ctx->total_connections);
905 if (topo_ctx->cont != NULL)
906 GNUNET_SCHEDULER_add_now (topo_ctx->cont, topo_ctx->cls);
907 if (topo_ctx->peers_seen != NULL)
908 GNUNET_CONTAINER_multihashmap_destroy(topo_ctx->peers_seen);
909 GNUNET_free(topo_ctx);
914 * Iterator over hash map entries.
916 * @param cls closure - always NULL
917 * @param key current key code
918 * @param value value in the hash map, a stats context
919 * @return GNUNET_YES if we should continue to
923 static int stats_iterate (void *cls,
924 const GNUNET_HashCode * key,
927 struct StatisticsIteratorContext *stats_ctx;
931 dhtlog_handle->insert_stat(stats_ctx->peer, stats_ctx->stat_routes, stats_ctx->stat_route_forwards, stats_ctx->stat_results,
932 stats_ctx->stat_results_to_client, stats_ctx->stat_result_forwards, stats_ctx->stat_gets,
933 stats_ctx->stat_puts, stats_ctx->stat_puts_inserted, stats_ctx->stat_find_peer,
934 stats_ctx->stat_find_peer_start, stats_ctx->stat_get_start, stats_ctx->stat_put_start,
935 stats_ctx->stat_find_peer_reply, stats_ctx->stat_get_reply, stats_ctx->stat_find_peer_answer,
936 stats_ctx->stat_get_response_start);
937 GNUNET_free(stats_ctx);
942 stats_finished (void *cls, int result)
944 fprintf(stderr, "Finished getting all peers statistics, iterating!\n");
945 GNUNET_CONTAINER_multihashmap_iterate(stats_map, &stats_iterate, NULL);
946 GNUNET_CONTAINER_multihashmap_destroy(stats_map);
947 GNUNET_SCHEDULER_add_now (&finish_testing, NULL);
951 * Callback function to process statistic values.
954 * @param peer the peer the statistics belong to
955 * @param subsystem name of subsystem that created the statistic
956 * @param name the name of the datum
957 * @param value the current value
958 * @param is_persistent GNUNET_YES if the value is persistent, GNUNET_NO if not
959 * @return GNUNET_OK to continue, GNUNET_SYSERR to abort iteration
961 static int stats_handle (void *cls,
962 const struct GNUNET_PeerIdentity *peer,
963 const char *subsystem,
968 struct StatisticsIteratorContext *stats_ctx;
970 if (dhtlog_handle != NULL)
971 dhtlog_handle->add_generic_stat(peer, name, subsystem, value);
972 if (GNUNET_CONTAINER_multihashmap_contains(stats_map, &peer->hashPubKey))
974 stats_ctx = GNUNET_CONTAINER_multihashmap_get(stats_map, &peer->hashPubKey);
978 stats_ctx = GNUNET_malloc(sizeof(struct StatisticsIteratorContext));
979 stats_ctx->peer = peer;
980 GNUNET_CONTAINER_multihashmap_put(stats_map, &peer->hashPubKey, stats_ctx, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
982 GNUNET_assert(stats_ctx != NULL);
984 if (strcmp(name, STAT_ROUTES) == 0)
985 stats_ctx->stat_routes = value;
986 else if (strcmp(name, STAT_ROUTE_FORWARDS) == 0)
987 stats_ctx->stat_route_forwards = value;
988 else if (strcmp(name, STAT_RESULTS) == 0)
989 stats_ctx->stat_results = value;
990 else if (strcmp(name, STAT_RESULTS_TO_CLIENT) == 0)
991 stats_ctx->stat_results_to_client = value;
992 else if (strcmp(name, STAT_RESULT_FORWARDS) == 0)
993 stats_ctx->stat_result_forwards = value;
994 else if (strcmp(name, STAT_GETS) == 0)
995 stats_ctx->stat_gets = value;
996 else if (strcmp(name, STAT_PUTS) == 0)
997 stats_ctx->stat_puts = value;
998 else if (strcmp(name, STAT_PUTS_INSERTED) == 0)
999 stats_ctx->stat_puts_inserted = value;
1000 else if (strcmp(name, STAT_FIND_PEER) == 0)
1001 stats_ctx->stat_find_peer = value;
1002 else if (strcmp(name, STAT_FIND_PEER_START) == 0)
1003 stats_ctx->stat_find_peer_start = value;
1004 else if (strcmp(name, STAT_GET_START) == 0)
1005 stats_ctx->stat_get_start = value;
1006 else if (strcmp(name, STAT_PUT_START) == 0)
1007 stats_ctx->stat_put_start = value;
1008 else if (strcmp(name, STAT_FIND_PEER_REPLY) == 0)
1009 stats_ctx->stat_find_peer_reply = value;
1010 else if (strcmp(name, STAT_GET_REPLY) == 0)
1011 stats_ctx->stat_get_reply = value;
1012 else if (strcmp(name, STAT_FIND_PEER_ANSWER) == 0)
1013 stats_ctx->stat_find_peer_answer = value;
1014 else if (strcmp(name, STAT_GET_RESPONSE_START) == 0)
1015 stats_ctx->stat_get_response_start = value;
1021 * Connect to statistics service for each peer and get the appropriate
1022 * dht statistics for safe keeping.
1025 log_dht_statistics (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1027 stats_map = GNUNET_CONTAINER_multihashmap_create(num_peers);
1028 fprintf(stderr, "Starting statistics logging\n");
1029 GNUNET_TESTING_get_statistics(pg, &stats_finished, &stats_handle, NULL);
1034 * Connect to all peers in the peer group and iterate over their
1038 capture_current_topology (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1040 struct TopologyIteratorContext *topo_ctx = cls;
1041 dhtlog_handle->insert_topology(0);
1042 GNUNET_TESTING_get_topology (pg, &log_topology_cb, topo_ctx);
1047 * Check if the get_handle is being used, if so stop the request. Either
1048 * way, schedule the end_badly_cont function which actually shuts down the
1052 end_badly (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1054 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Failing test with error: `%s'!\n", (char *)cls);
1056 struct TestPutContext *test_put = all_puts;
1057 struct TestGetContext *test_get = all_gets;
1059 while (test_put != NULL)
1061 if (test_put->disconnect_task != GNUNET_SCHEDULER_NO_TASK)
1062 GNUNET_SCHEDULER_cancel(test_put->disconnect_task);
1063 if (test_put->dht_handle != NULL)
1064 GNUNET_DHT_disconnect(test_put->dht_handle);
1065 test_put = test_put->next;
1068 while (test_get != NULL)
1070 if (test_get->disconnect_task != GNUNET_SCHEDULER_NO_TASK)
1071 GNUNET_SCHEDULER_cancel(test_get->disconnect_task);
1072 if (test_get->get_handle != NULL)
1073 GNUNET_DHT_get_stop(test_get->get_handle);
1074 if (test_get->dht_handle != NULL)
1075 GNUNET_DHT_disconnect(test_get->dht_handle);
1076 test_get = test_get->next;
1079 GNUNET_TESTING_daemons_stop (pg, DEFAULT_TIMEOUT, &shutdown_callback, NULL);
1081 if (dhtlog_handle != NULL)
1083 fprintf(stderr, "Update trial endtime\n");
1084 dhtlog_handle->update_trial (gets_completed);
1085 GNUNET_DHTLOG_disconnect(dhtlog_handle);
1086 dhtlog_handle = NULL;
1089 if (hostkey_meter != NULL)
1090 free_meter(hostkey_meter);
1091 if (peer_start_meter != NULL)
1092 free_meter(peer_start_meter);
1093 if (peer_connect_meter != NULL)
1094 free_meter(peer_connect_meter);
1095 if (put_meter != NULL)
1096 free_meter(put_meter);
1097 if (get_meter != NULL)
1098 free_meter(get_meter);
1104 * Forward declaration.
1107 do_put (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc);
1110 * Forward declaration.
1113 do_get (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc);
1116 * Iterator over hash map entries.
1118 * @param cls closure
1119 * @param key current key code
1120 * @param value value in the hash map
1121 * @return GNUNET_YES if we should continue to
1125 static int remove_peer_count (void *cls,
1126 const GNUNET_HashCode * key,
1129 struct FindPeerContext *find_peer_ctx = cls;
1130 struct PeerCount *peer_count = value;
1131 GNUNET_CONTAINER_heap_remove_node(find_peer_ctx->peer_min_heap, peer_count->heap_node);
1132 GNUNET_free(peer_count);
1138 * Connect to all peers in the peer group and iterate over their
1142 count_new_peers (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1144 struct FindPeerContext *find_peer_context = cls;
1145 find_peer_context->previous_peers = find_peer_context->current_peers;
1146 find_peer_context->current_peers = 0;
1147 GNUNET_TESTING_get_topology (pg, find_peer_context->count_peers_cb, find_peer_context);
1151 decrement_find_peers (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1153 struct TestFindPeer *test_find_peer = cls;
1154 GNUNET_assert(test_find_peer->find_peer_context->outstanding > 0);
1155 test_find_peer->find_peer_context->outstanding--;
1156 test_find_peer->find_peer_context->total--;
1157 if (0 == test_find_peer->find_peer_context->total)
1159 GNUNET_SCHEDULER_add_now(&count_new_peers, test_find_peer->find_peer_context);
1161 GNUNET_free(test_find_peer);
1165 * A find peer request has been sent to the server, now we will schedule a task
1166 * to wait the appropriate time to allow the request to go out and back.
1168 * @param cls closure - a TestFindPeer struct
1169 * @param tc context the task is being called with
1172 handle_find_peer_sent (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1174 struct TestFindPeer *test_find_peer = cls;
1176 GNUNET_DHT_disconnect(test_find_peer->dht_handle);
1177 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_divide(find_peer_delay, 2), &decrement_find_peers, test_find_peer);
1182 send_find_peer_request (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1184 struct TestFindPeer *test_find_peer = cls;
1186 if (test_find_peer->find_peer_context->outstanding > max_outstanding_find_peers)
1188 GNUNET_SCHEDULER_add_delayed(find_peer_offset, &send_find_peer_request, test_find_peer);
1192 test_find_peer->find_peer_context->outstanding++;
1193 if (GNUNET_TIME_absolute_get_remaining(test_find_peer->find_peer_context->endtime).rel_value == 0)
1195 GNUNET_SCHEDULER_add_now(&decrement_find_peers, test_find_peer);
1199 test_find_peer->dht_handle = GNUNET_DHT_connect(test_find_peer->daemon->cfg, 1);
1200 GNUNET_assert(test_find_peer->dht_handle != NULL);
1201 GNUNET_DHT_find_peers (test_find_peer->dht_handle,
1202 &handle_find_peer_sent, test_find_peer);
1207 * Add a connection to the find_peer_context given. This may
1208 * be complete overkill, but allows us to choose the peers with
1209 * the least connections to initiate find peer requests from.
1211 static void add_new_connection(struct FindPeerContext *find_peer_context,
1212 const struct GNUNET_PeerIdentity *first,
1213 const struct GNUNET_PeerIdentity *second)
1215 struct PeerCount *first_count;
1216 struct PeerCount *second_count;
1218 if (GNUNET_CONTAINER_multihashmap_contains(find_peer_context->peer_hash, &first->hashPubKey))
1220 first_count = GNUNET_CONTAINER_multihashmap_get(find_peer_context->peer_hash, &first->hashPubKey);
1221 GNUNET_assert(first_count != NULL);
1222 first_count->count++;
1223 GNUNET_CONTAINER_heap_update_cost(find_peer_context->peer_min_heap, first_count->heap_node, first_count->count);
1227 first_count = GNUNET_malloc(sizeof(struct PeerCount));
1228 first_count->count = 1;
1229 memcpy(&first_count->peer_id, first, sizeof(struct GNUNET_PeerIdentity));
1230 first_count->heap_node = GNUNET_CONTAINER_heap_insert(find_peer_context->peer_min_heap, first_count, first_count->count);
1231 GNUNET_CONTAINER_multihashmap_put(find_peer_context->peer_hash, &first->hashPubKey, first_count, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
1234 if (GNUNET_CONTAINER_multihashmap_contains(find_peer_context->peer_hash, &second->hashPubKey))
1236 second_count = GNUNET_CONTAINER_multihashmap_get(find_peer_context->peer_hash, &second->hashPubKey);
1237 GNUNET_assert(second_count != NULL);
1238 second_count->count++;
1239 GNUNET_CONTAINER_heap_update_cost(find_peer_context->peer_min_heap, second_count->heap_node, second_count->count);
1243 second_count = GNUNET_malloc(sizeof(struct PeerCount));
1244 second_count->count = 1;
1245 memcpy(&second_count->peer_id, second, sizeof(struct GNUNET_PeerIdentity));
1246 second_count->heap_node = GNUNET_CONTAINER_heap_insert(find_peer_context->peer_min_heap, second_count, second_count->count);
1247 GNUNET_CONTAINER_multihashmap_put(find_peer_context->peer_hash, &second->hashPubKey, second_count, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
1253 * Iterate over min heap of connections per peer. For any
1254 * peer that has 0 connections, attempt to connect them to
1257 * @param cls closure a struct FindPeerContext
1258 * @param node internal node of the heap
1259 * @param element value stored, a struct PeerCount
1260 * @param cost cost associated with the node
1261 * @return GNUNET_YES if we should continue to iterate,
1264 static int iterate_min_heap_peers (void *cls,
1265 struct GNUNET_CONTAINER_HeapNode *node,
1267 GNUNET_CONTAINER_HeapCostType cost)
1269 struct FindPeerContext *find_peer_context = cls;
1270 struct PeerCount *peer_count = element;
1271 struct GNUNET_TESTING_Daemon *d1;
1272 struct GNUNET_TESTING_Daemon *d2;
1273 struct GNUNET_TIME_Relative timeout;
1276 d1 = GNUNET_TESTING_daemon_get_by_id (pg, &peer_count->peer_id);
1277 GNUNET_assert(d1 != NULL);
1279 while ((d2 == d1) || (GNUNET_YES != GNUNET_TESTING_daemon_running(d2)))
1281 d2 = GNUNET_TESTING_daemon_get(pg, GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers));
1282 GNUNET_assert(d2 != NULL);
1285 /** Just try to connect the peers, don't worry about callbacks, etc. **/
1286 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);
1287 timeout = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, DEFAULT_CONNECT_TIMEOUT);
1288 if (GNUNET_TIME_relative_to_absolute(timeout).abs_value > find_peer_context->endtime.abs_value)
1290 timeout = GNUNET_TIME_absolute_get_remaining(find_peer_context->endtime);
1292 GNUNET_TESTING_daemons_connect(d1, d2, timeout, DEFAULT_RECONNECT_ATTEMPTS, NULL, NULL);
1294 if (GNUNET_TIME_absolute_get_remaining(find_peer_context->endtime).rel_value > 0)
1301 * Forward declaration.
1304 schedule_churn_find_peer_requests (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc);
1307 * Callback for iterating over all the peer connections of a peer group.
1308 * Used after we have churned on some peers to find which ones have zero
1309 * connections so we can make them issue find peer requests.
1312 count_peers_churn_cb (void *cls,
1313 const struct GNUNET_PeerIdentity *first,
1314 const struct GNUNET_PeerIdentity *second,
1317 struct FindPeerContext *find_peer_context = cls;
1318 struct TopologyIteratorContext *topo_ctx;
1319 struct PeerCount *peer_count;
1321 if ((first != NULL) && (second != NULL))
1323 add_new_connection(find_peer_context, first, second);
1324 find_peer_context->current_peers++;
1328 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Peer count finished (%u connections)\n",
1329 find_peer_context->current_peers);
1330 peer_count = GNUNET_CONTAINER_heap_peek(find_peer_context->peer_min_heap);
1331 GNUNET_assert(peer_count != NULL);
1332 /* 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. */
1333 /* NO they won't, because we have disabled peerinfo writing to disk (remember?) so we WILL have to give them new connections */
1334 /* Best course of action: have DHT automatically try to add peers from peerinfo on startup. This way IF peerinfo writes to file
1335 * then some peers will end up connected.
1337 * Also, find any peers that have zero connections here and set up a task to choose at random another peer in the network to
1338 * 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
1339 * until they get a peer.
1341 /* However, they won't automatically be connected to any of their previous peers... How can we handle that? */
1342 /* So now we have choices: do we want them to come back with all their connections? Probably not, but it solves this mess. */
1344 /* Second problem, which is still a problem, is that a FIND_PEER request won't work when a peer has no connections */
1347 * Okay, so here's how this *should* work now.
1349 * 1. We check the min heap for any peers that have 0 connections.
1350 * a. If any are found, we iterate over the heap and just randomly
1351 * choose another peer and ask testing to please connect the two.
1352 * This takes care of the case that a peer just randomly joins the
1353 * network. However, if there are strict topology restrictions
1354 * (imagine a ring) choosing randomly most likely won't help.
1355 * We make sure the connection attempt doesn't take longer than
1356 * the total timeout, but don't care too much about the result.
1357 * b. After that, we still schedule the find peer requests (concurrently
1358 * with the connect attempts most likely). This handles the case
1359 * that the DHT iterates over peerinfo and just needs to try to send
1360 * a message to get connected. This should handle the case that the
1361 * topology is very strict.
1363 * 2. If all peers have > 0 connections, we still send find peer requests
1364 * as long as possible (until timeout is reached) to help out those
1365 * peers that were newly churned and need more connections. This is because
1366 * once all new peers have established a single connection, they won't be
1369 * 3. Once we reach the timeout, we can do no more. We must schedule the
1370 * next iteration of get requests regardless of connections that peers
1371 * may or may not have.
1373 * Caveat: it would be nice to get peers to take data offline with them and
1374 * come back with it (or not) based on the testing framework. The
1375 * same goes for remembering previous connections, but putting either
1376 * into the general testing churn options seems like overkill because
1377 * these are very specialized cases.
1379 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);
1380 if ((peer_count->count == 0) && (GNUNET_TIME_absolute_get_remaining(find_peer_context->endtime).rel_value > 0))
1382 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Found peer with no connections, will choose some peer(s) at random to connect to!\n");
1383 GNUNET_CONTAINER_heap_iterate (find_peer_context->peer_min_heap, &iterate_min_heap_peers, find_peer_context);
1384 GNUNET_SCHEDULER_add_now(&schedule_churn_find_peer_requests, find_peer_context);
1386 else if ((GNUNET_TIME_absolute_get_remaining(find_peer_context->endtime).rel_value > 0) && (find_peer_context->last_sent != 0))
1388 GNUNET_SCHEDULER_add_now(&schedule_churn_find_peer_requests, find_peer_context);
1392 GNUNET_CONTAINER_multihashmap_iterate(find_peer_context->peer_hash, &remove_peer_count, find_peer_context);
1393 GNUNET_CONTAINER_multihashmap_destroy(find_peer_context->peer_hash);
1394 GNUNET_CONTAINER_heap_destroy(find_peer_context->peer_min_heap);
1395 GNUNET_free(find_peer_context);
1396 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Churn round %u of %llu finished, scheduling next GET round.\n", current_churn_round, churn_rounds);
1397 if (dhtlog_handle != NULL)
1399 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
1400 topo_ctx->cont = &do_get;
1401 topo_ctx->cls = all_gets;
1402 topo_ctx->timeout = DEFAULT_GET_TIMEOUT;
1403 topo_ctx->peers_seen = GNUNET_CONTAINER_multihashmap_create(num_peers);
1404 die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_add(GNUNET_TIME_relative_add(DEFAULT_GET_TIMEOUT, all_get_timeout), DEFAULT_TOPOLOGY_CAPTURE_TIMEOUT),
1405 &end_badly, "from do gets (count_peers_churn_cb)");
1406 GNUNET_SCHEDULER_add_now(&capture_current_topology, topo_ctx);
1410 die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_add(GNUNET_TIME_relative_add(DEFAULT_GET_TIMEOUT, all_get_timeout), DEFAULT_TOPOLOGY_CAPTURE_TIMEOUT),
1411 &end_badly, "from do gets (count_peers_churn_cb)");
1412 GNUNET_SCHEDULER_add_now(&do_get, all_gets);
1419 * Set up a single find peer request for each peer in the topology. Do this
1420 * until the settle time is over, limited by the number of outstanding requests
1421 * and the time allowed for each one!
1424 schedule_churn_find_peer_requests (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1426 struct FindPeerContext *find_peer_ctx = cls;
1427 struct TestFindPeer *test_find_peer;
1428 struct PeerCount *peer_count;
1431 if (find_peer_ctx->previous_peers == 0) /* First time, go slowly */
1432 find_peer_ctx->total = 1;
1433 else if (find_peer_ctx->current_peers - find_peer_ctx->previous_peers < MIN_FIND_PEER_CUTOFF)
1434 find_peer_ctx->total = find_peer_ctx->total / 2;
1435 else if (find_peer_ctx->current_peers - find_peer_ctx->previous_peers > MAX_FIND_PEER_CUTOFF) /* Found LOTS of peers, still go slowly */
1436 find_peer_ctx->total = find_peer_ctx->last_sent - (find_peer_ctx->last_sent / 4);
1438 find_peer_ctx->total = find_peer_ctx->last_sent * 4;
1440 if (find_peer_ctx->total > max_outstanding_find_peers)
1441 find_peer_ctx->total = max_outstanding_find_peers;
1443 find_peer_ctx->last_sent = find_peer_ctx->total;
1444 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Sending %u find peer messages (after churn)\n", find_peer_ctx->total);
1446 if (find_peer_ctx->total > 0)
1447 find_peer_offset = GNUNET_TIME_relative_divide(find_peer_delay, find_peer_ctx->total);
1450 find_peer_ctx->previous_peers = find_peer_ctx->current_peers;
1451 find_peer_ctx->current_peers = 0;
1452 GNUNET_TESTING_get_topology (pg, &count_peers_churn_cb, find_peer_ctx);
1456 for (i = 0; i < find_peer_ctx->total; i++)
1458 test_find_peer = GNUNET_malloc(sizeof(struct TestFindPeer));
1459 /* If we have sent requests, choose peers with a low number of connections to send requests from */
1460 peer_count = GNUNET_CONTAINER_heap_remove_root(find_peer_ctx->peer_min_heap);
1461 GNUNET_assert(peer_count != NULL);
1462 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Sending find peer request from peer with %u connections\n", peer_count->count);
1463 GNUNET_CONTAINER_multihashmap_remove(find_peer_ctx->peer_hash, &peer_count->peer_id.hashPubKey, peer_count);
1464 test_find_peer->daemon = GNUNET_TESTING_daemon_get_by_id(pg, &peer_count->peer_id);
1465 GNUNET_assert(test_find_peer->daemon != NULL);
1466 test_find_peer->find_peer_context = find_peer_ctx;
1467 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_multiply(find_peer_offset, i), &send_find_peer_request, test_find_peer);
1470 if ((find_peer_ctx->peer_hash == NULL) && (find_peer_ctx->peer_min_heap == NULL))
1472 find_peer_ctx->peer_hash = GNUNET_CONTAINER_multihashmap_create(num_peers);
1473 find_peer_ctx->peer_min_heap = GNUNET_CONTAINER_heap_create(GNUNET_CONTAINER_HEAP_ORDER_MIN);
1477 GNUNET_CONTAINER_multihashmap_iterate(find_peer_ctx->peer_hash, &remove_peer_count, find_peer_ctx);
1478 GNUNET_CONTAINER_multihashmap_destroy(find_peer_ctx->peer_hash);
1479 find_peer_ctx->peer_hash = GNUNET_CONTAINER_multihashmap_create(num_peers);
1482 GNUNET_assert(0 == GNUNET_CONTAINER_multihashmap_size(find_peer_ctx->peer_hash));
1483 GNUNET_assert(0 == GNUNET_CONTAINER_heap_get_size(find_peer_ctx->peer_min_heap));
1486 static void schedule_churn_get_topology (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1488 struct FindPeerContext *find_peer_context = cls;
1489 GNUNET_TESTING_get_topology (pg, &count_peers_churn_cb, find_peer_context);
1493 * Called when churning of the topology has finished.
1495 * @param cls closure unused
1496 * @param emsg NULL on success, or a printable error on failure
1498 static void churn_complete (void *cls, const char *emsg)
1500 struct FindPeerContext *find_peer_context = cls;
1501 struct PeerCount *peer_count;
1503 struct GNUNET_TESTING_Daemon *temp_daemon;
1504 struct TopologyIteratorContext *topo_ctx;
1505 struct GNUNET_TIME_Relative calc_timeout;
1510 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Ending test, churning of peers failed with error `%s'", emsg);
1511 GNUNET_SCHEDULER_add_now(&end_badly, (void *)emsg);
1516 * If we switched any peers on, we have to somehow force connect the new peer to
1517 * SOME bootstrap peer in the network. First schedule a task to find all peers
1518 * with no connections, then choose a random peer for each and connect them.
1520 if (find_peer_context != NULL)
1522 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "We have churned on some peers, so we must schedule find peer requests for them!\n");
1524 for (i = 0; i < num_peers; i ++)
1526 temp_daemon = GNUNET_TESTING_daemon_get(pg, i);
1527 if (GNUNET_YES == GNUNET_TESTING_daemon_running(temp_daemon))
1529 peer_count = GNUNET_malloc (sizeof(struct PeerCount));
1530 memcpy(&peer_count->peer_id, &temp_daemon->id, sizeof(struct GNUNET_PeerIdentity));
1531 GNUNET_assert(peer_count->count == 0);
1532 peer_count->heap_node = GNUNET_CONTAINER_heap_insert(find_peer_context->peer_min_heap, peer_count, peer_count->count);
1533 GNUNET_CONTAINER_multihashmap_put(find_peer_context->peer_hash, &temp_daemon->id.hashPubKey, peer_count, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
1537 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));
1538 GNUNET_SCHEDULER_add_delayed(DEFAULT_PEER_DISCONNECT_TIMEOUT, &schedule_churn_get_topology, find_peer_context);
1539 //GNUNET_TESTING_get_topology (pg, &count_peers_churn_cb, find_peer_context);
1543 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");
1544 if (dhtlog_handle != NULL)
1546 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
1547 topo_ctx->cont = &do_get;
1548 topo_ctx->cls = all_gets;
1549 topo_ctx->timeout = DEFAULT_GET_TIMEOUT;
1550 topo_ctx->peers_seen = GNUNET_CONTAINER_multihashmap_create(num_peers);
1551 calc_timeout = GNUNET_TIME_relative_add(DEFAULT_GET_TIMEOUT, all_get_timeout);
1552 calc_timeout = GNUNET_TIME_relative_add(calc_timeout, DEFAULT_TOPOLOGY_CAPTURE_TIMEOUT);
1553 calc_timeout = GNUNET_TIME_relative_add(calc_timeout, DEFAULT_PEER_DISCONNECT_TIMEOUT);
1554 die_task = GNUNET_SCHEDULER_add_delayed (calc_timeout,
1555 &end_badly, "from do gets (churn_complete)");
1556 GNUNET_SCHEDULER_add_delayed(DEFAULT_PEER_DISCONNECT_TIMEOUT, &capture_current_topology, topo_ctx);
1560 calc_timeout = GNUNET_TIME_relative_add(DEFAULT_GET_TIMEOUT, all_get_timeout);
1561 calc_timeout = GNUNET_TIME_relative_add(calc_timeout, DEFAULT_PEER_DISCONNECT_TIMEOUT);
1562 die_task = GNUNET_SCHEDULER_add_delayed (calc_timeout,
1563 &end_badly, "from do gets (churn_complete)");
1564 if (dhtlog_handle != NULL)
1565 dhtlog_handle->insert_round(DHT_ROUND_GET, rounds_finished);
1566 GNUNET_SCHEDULER_add_delayed(DEFAULT_PEER_DISCONNECT_TIMEOUT, &do_get, all_gets);
1572 * Decide how many peers to turn on or off in this round, make sure the
1573 * numbers actually make sense, then do so. This function sets in motion
1574 * churn, find peer requests for newly joined peers, and issuing get
1575 * requests once the new peers have done so.
1577 * @param cls closure (unused)
1578 * @param tc task context (unused)
1581 churn_peers (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1583 unsigned int count_running;
1584 unsigned int churn_up;
1585 unsigned int churn_down;
1586 struct GNUNET_TIME_Relative timeout;
1587 struct FindPeerContext *find_peer_context;
1589 churn_up = churn_down = 0;
1590 count_running = GNUNET_TESTING_daemons_running(pg);
1591 if (count_running > churn_array[current_churn_round])
1592 churn_down = count_running - churn_array[current_churn_round];
1593 else if (count_running < churn_array[current_churn_round])
1594 churn_up = churn_array[current_churn_round] - count_running;
1596 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Not churning any peers, topology unchanged.\n");
1598 if (churn_up > num_peers - count_running)
1600 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Churn file specified %u peers (up); only have %u!", churn_array[current_churn_round], num_peers);
1601 churn_up = num_peers - count_running;
1603 else if (churn_down > count_running)
1605 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Churn file specified %u peers (down); only have %u!", churn_array[current_churn_round], count_running);
1606 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "This will leave NO peers running (mistake in churn configuration?)!");
1607 churn_down = count_running;
1609 //timeout = GNUNET_TIME_relative_multiply(seconds_per_peer_start, churn_up > 0 ? churn_up : churn_down);
1610 //timeout = GNUNET_TIME_relative_multiply (seconds_per_peer_start, churn_up > 0 ? churn_up : churn_down);
1611 timeout = GNUNET_TIME_relative_multiply(DEFAULT_TIMEOUT, 2); /* FIXME: Lack of intelligent choice here */
1612 find_peer_context = NULL;
1613 if (churn_up > 0) /* Only need to do find peer requests if we turned new peers on */
1615 find_peer_context = GNUNET_malloc(sizeof(struct FindPeerContext));
1616 find_peer_context->count_peers_cb = &count_peers_churn_cb;
1617 find_peer_context->previous_peers = 0;
1618 find_peer_context->current_peers = 0;
1619 find_peer_context->endtime = GNUNET_TIME_relative_to_absolute(timeout);
1620 find_peer_context->peer_hash = GNUNET_CONTAINER_multihashmap_create(num_peers);
1621 find_peer_context->peer_min_heap = GNUNET_CONTAINER_heap_create(GNUNET_CONTAINER_HEAP_ORDER_MIN);
1623 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "churn_peers: want %u total, %u running, starting %u, stopping %u\n",
1624 churn_array[current_churn_round], count_running, churn_up, churn_down);
1625 GNUNET_TESTING_daemons_churn (pg, churn_down, churn_up, timeout, &churn_complete, find_peer_context);
1626 current_churn_round++;
1630 * Task to release DHT handle associated with GET request.
1633 get_stop_finished (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1635 struct TestGetContext *test_get = cls;
1636 struct TopologyIteratorContext *topo_ctx;
1638 /* The dht_handle may be null if this get was scheduled from a down peer */
1639 if (test_get->dht_handle != NULL)
1641 GNUNET_DHT_disconnect(test_get->dht_handle);
1642 outstanding_gets--; /* GET is really finished */
1643 test_get->dht_handle = NULL;
1646 /* Reset the uid (which item to search for) and the daemon (which peer to search from) for later get request iterations */
1647 if (get_from_same == GNUNET_NO)
1649 test_get->uid = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_puts);
1650 test_get->daemon = GNUNET_TESTING_daemon_get(pg, GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers));
1654 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "%d gets succeeded, %d gets failed!\n", gets_completed, gets_failed);
1656 update_meter(get_meter);
1657 if ((gets_completed + gets_failed == num_gets) && (outstanding_gets == 0))
1659 fprintf(stderr, "Canceling die task (get_stop_finished) %llu gets completed, %llu gets failed\n", gets_completed, gets_failed);
1660 GNUNET_SCHEDULER_cancel(die_task);
1661 reset_meter(put_meter);
1662 reset_meter(get_meter);
1665 * 1) Testing is completely finished, call the topology iteration dealy and die
1666 * 2) Testing is not finished, churn the network and do gets again (current_churn_round < churn_rounds)
1667 * 3) Testing is not finished, reschedule all the PUTS *and* GETS again (num_rounds > 1)
1669 if (rounds_finished == total_rounds - 1) /* Everything is finished, end testing */
1671 if (dhtlog_handle != NULL)
1673 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
1674 topo_ctx->cont = &log_dht_statistics;
1675 topo_ctx->peers_seen = GNUNET_CONTAINER_multihashmap_create(num_peers);
1676 GNUNET_SCHEDULER_add_now(&capture_current_topology, topo_ctx);
1679 GNUNET_SCHEDULER_add_now (&finish_testing, NULL);
1681 else if (current_churn_round < churns_per_round * (rounds_finished + 1)) /* Do next round of churn */
1683 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);
1687 if (dhtlog_handle != NULL)
1688 dhtlog_handle->insert_round(DHT_ROUND_CHURN, rounds_finished);
1690 GNUNET_SCHEDULER_add_now(&churn_peers, NULL);
1692 else if (rounds_finished < total_rounds - 1) /* Start a new complete round */
1697 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Round %u of %llu finished, scheduling next round.\n", rounds_finished, total_rounds);
1699 /** We reset the peer daemon for puts and gets on each disconnect, so all we need to do is start another round! */
1700 if (GNUNET_YES == in_dht_replication) /* Replication done in DHT, don't redo puts! */
1702 if (dhtlog_handle != NULL)
1703 dhtlog_handle->insert_round(DHT_ROUND_GET, rounds_finished);
1705 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),
1706 &end_badly, "from do gets (next round)");
1707 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, round_delay), &do_get, all_gets);
1711 if (dhtlog_handle != NULL)
1712 dhtlog_handle->insert_round(DHT_ROUND_NORMAL, rounds_finished);
1713 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)),
1714 &end_badly, "from do puts");
1715 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, round_delay), &do_put, all_puts);
1722 * Task to release get handle.
1725 get_stop_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1727 struct TestGetContext *test_get = cls;
1729 if (tc->reason == GNUNET_SCHEDULER_REASON_TIMEOUT)
1731 GNUNET_assert(test_get->get_handle != NULL);
1732 GNUNET_DHT_get_stop(test_get->get_handle);
1733 test_get->get_handle = NULL;
1734 test_get->disconnect_task = GNUNET_SCHEDULER_NO_TASK;
1735 GNUNET_SCHEDULER_add_now (&get_stop_finished, test_get);
1739 * Iterator called if the GET request initiated returns a response.
1741 * @param cls closure
1742 * @param exp when will this value expire
1743 * @param key key of the result
1744 * @param get_path NULL-terminated array of pointers
1745 * to the peers on reverse GET path (or NULL if not recorded)
1746 * @param put_path NULL-terminated array of pointers
1747 * to the peers on the PUT path (or NULL if not recorded)
1748 * @param type type of the result
1749 * @param size number of bytes in data
1750 * @param data pointer to the result data
1753 get_result_iterator (void *cls,
1754 struct GNUNET_TIME_Absolute exp,
1755 const GNUNET_HashCode * key,
1756 const struct GNUNET_PeerIdentity * const *get_path,
1757 const struct GNUNET_PeerIdentity * const *put_path,
1758 enum GNUNET_BLOCK_Type type,
1762 struct TestGetContext *test_get = cls;
1764 if (test_get->succeeded == GNUNET_YES)
1765 return; /* Get has already been successful, probably ending now */
1767 if (0 != memcmp(&known_keys[test_get->uid], key, sizeof (GNUNET_HashCode))) /* || (0 != memcmp(original_data, data, sizeof(original_data))))*/
1770 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Key or data is not the same as was inserted!\n");
1775 test_get->succeeded = GNUNET_YES;
1778 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Received correct GET response!\n");
1780 GNUNET_SCHEDULER_cancel(test_get->disconnect_task);
1781 GNUNET_SCHEDULER_add_continuation(&get_stop_task, test_get, GNUNET_SCHEDULER_REASON_PREREQ_DONE);
1787 * Set up some data, and call API PUT function
1790 do_get (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1792 struct TestGetContext *test_get = cls;
1796 GNUNET_SCHEDULER_cancel(die_task);
1797 GNUNET_SCHEDULER_add_now(&finish_testing, NULL);
1800 if (test_get == NULL)
1801 return; /* End of the list */
1803 /* Set this here in case we are re-running gets */
1804 test_get->succeeded = GNUNET_NO;
1806 if (GNUNET_YES != GNUNET_TESTING_daemon_running(test_get->daemon)) /* If the peer has been churned off, don't try issuing request from it! */
1808 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Peer we should issue get request from is down, skipping.\n");
1810 GNUNET_SCHEDULER_add_now (&get_stop_finished, test_get);
1811 GNUNET_SCHEDULER_add_now (&do_get, test_get->next);
1815 /* Check if more gets are outstanding than should be */
1816 if (outstanding_gets > max_outstanding_gets)
1818 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MILLISECONDS, 200), &do_get, test_get);
1822 /* Connect to the first peer's DHT */
1823 test_get->dht_handle = GNUNET_DHT_connect(test_get->daemon->cfg, 10);
1824 GNUNET_assert(test_get->dht_handle != NULL);
1827 /* Insert the data at the first peer */
1828 test_get->get_handle = GNUNET_DHT_get_start(test_get->dht_handle,
1830 GNUNET_BLOCK_TYPE_TEST,
1831 &known_keys[test_get->uid],
1836 &get_result_iterator,
1840 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Starting get for uid %u from peer %s\n",
1842 test_get->daemon->shortname);
1844 test_get->disconnect_task = GNUNET_SCHEDULER_add_delayed(get_timeout, &get_stop_task, test_get);
1846 /* Schedule the next request in the linked list of get requests */
1847 GNUNET_SCHEDULER_add_now (&do_get, test_get->next);
1851 * Called when the PUT request has been transmitted to the DHT service.
1852 * Schedule the GET request for some time in the future.
1855 put_finished (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1857 struct TestPutContext *test_put = cls;
1858 struct TopologyIteratorContext *topo_ctx;
1862 if (tc->reason == GNUNET_SCHEDULER_REASON_TIMEOUT)
1863 fprintf(stderr, "PUT Request failed!\n");
1865 /* Reset the daemon (which peer to insert at) for later put request iterations */
1866 if (replicate_same == GNUNET_NO)
1867 test_put->daemon = GNUNET_TESTING_daemon_get(pg, GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers));
1869 GNUNET_SCHEDULER_cancel(test_put->disconnect_task);
1870 test_put->disconnect_task = GNUNET_SCHEDULER_add_now(&put_disconnect_task, test_put);
1871 if (GNUNET_YES == update_meter(put_meter))
1873 GNUNET_assert(outstanding_puts == 0);
1874 GNUNET_SCHEDULER_cancel (die_task);
1875 if (dhtlog_handle != NULL)
1877 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
1878 topo_ctx->cont = &do_get;
1879 topo_ctx->cls = all_gets;
1880 topo_ctx->timeout = DEFAULT_GET_TIMEOUT;
1881 topo_ctx->peers_seen = GNUNET_CONTAINER_multihashmap_create(num_peers);
1882 die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_add(GNUNET_TIME_relative_add(DEFAULT_GET_TIMEOUT, all_get_timeout), DEFAULT_TOPOLOGY_CAPTURE_TIMEOUT),
1883 &end_badly, "from do gets (put finished)");
1884 GNUNET_SCHEDULER_add_now(&capture_current_topology, topo_ctx);
1888 fprintf(stderr, "Scheduling die task (put finished)\n");
1889 die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_add(DEFAULT_GET_TIMEOUT, all_get_timeout),
1890 &end_badly, "from do gets (put finished)");
1891 GNUNET_SCHEDULER_add_delayed(DEFAULT_GET_TIMEOUT, &do_get, all_gets);
1898 * Set up some data, and call API PUT function
1901 do_put (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1903 struct TestPutContext *test_put = cls;
1904 char data[test_data_size]; /* Made up data to store */
1908 if (test_put == NULL)
1909 return; /* End of list */
1911 if (GNUNET_YES != GNUNET_TESTING_daemon_running(test_put->daemon)) /* If the peer has been churned off, don't try issuing request from it! */
1913 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Peer we should issue put request at is down, skipping.\n");
1914 update_meter(put_meter);
1915 GNUNET_SCHEDULER_add_now (&do_put, test_put->next);
1919 for (i = 0; i < sizeof(data); i++)
1921 memset(&data[i], GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, UINT32_MAX), 1);
1924 if (outstanding_puts > max_outstanding_puts)
1926 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MILLISECONDS, 200), &do_put, test_put);
1931 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Starting put for uid %u from peer %s\n",
1933 test_put->daemon->shortname);
1935 test_put->dht_handle = GNUNET_DHT_connect(test_put->daemon->cfg, 10);
1937 GNUNET_assert(test_put->dht_handle != NULL);
1939 GNUNET_DHT_put(test_put->dht_handle,
1940 &known_keys[test_put->uid],
1943 GNUNET_BLOCK_TYPE_TEST,
1945 GNUNET_TIME_UNIT_FOREVER_ABS,
1947 &put_finished, test_put);
1948 test_put->disconnect_task = GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_get_forever(), &put_disconnect_task, test_put);
1949 rand = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, 2);
1950 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, rand), &do_put, test_put->next);
1954 schedule_find_peer_requests (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc);
1957 setup_malicious_peers (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc);
1960 * Given a number of total peers and a bucket size, estimate the number of
1961 * connections in a perfect kademlia topology.
1963 static unsigned int connection_estimate(unsigned int peer_count, unsigned int bucket_size)
1966 unsigned int filled;
1970 while (i >= bucket_size)
1975 filled++; /* Add one filled bucket to account for one "half full" and some miscellaneous */
1976 return filled * bucket_size * peer_count;
1982 * Callback for iterating over all the peer connections of a peer group.
1985 count_peers_cb (void *cls,
1986 const struct GNUNET_PeerIdentity *first,
1987 const struct GNUNET_PeerIdentity *second,
1990 struct FindPeerContext *find_peer_context = cls;
1991 if ((first != NULL) && (second != NULL))
1993 add_new_connection(find_peer_context, first, second);
1994 find_peer_context->current_peers++;
1998 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Peer count finished (%u connections), %u new peers, connection estimate %u (target %u)\n",
1999 find_peer_context->current_peers,
2000 find_peer_context->current_peers - find_peer_context->previous_peers,
2001 connection_estimate(num_peers, DEFAULT_BUCKET_SIZE),
2002 target_total_connections);
2004 if ((find_peer_context->last_sent < 8) ||
2005 ((find_peer_context->current_peers - find_peer_context->previous_peers > FIND_PEER_THRESHOLD) &&
2006 (find_peer_context->current_peers < 2 * connection_estimate(num_peers, DEFAULT_BUCKET_SIZE)) &&
2007 (GNUNET_TIME_absolute_get_remaining(find_peer_context->endtime).rel_value > 0) &&
2008 (find_peer_context->current_peers < target_total_connections)))
2010 GNUNET_SCHEDULER_add_now(&schedule_find_peer_requests, find_peer_context);
2014 GNUNET_CONTAINER_multihashmap_iterate(find_peer_context->peer_hash, &remove_peer_count, find_peer_context);
2015 GNUNET_CONTAINER_multihashmap_destroy(find_peer_context->peer_hash);
2016 GNUNET_CONTAINER_heap_destroy(find_peer_context->peer_min_heap);
2017 GNUNET_free(find_peer_context);
2018 fprintf(stderr, "Not sending any more find peer requests.\n");
2020 if (GNUNET_YES == malicious_after_settle)
2021 GNUNET_SCHEDULER_add_now(&setup_malicious_peers, NULL);
2028 * Set up a single find peer request for each peer in the topology. Do this
2029 * until the settle time is over, limited by the number of outstanding requests
2030 * and the time allowed for each one!
2033 schedule_find_peer_requests (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
2035 struct FindPeerContext *find_peer_ctx = cls;
2036 struct TestFindPeer *test_find_peer;
2037 struct PeerCount *peer_count;
2041 if (find_peer_ctx->previous_peers == 0) /* First time, go slowly */
2042 find_peer_ctx->total = 1;
2043 else if (find_peer_ctx->current_peers - find_peer_ctx->previous_peers > MAX_FIND_PEER_CUTOFF) /* Found LOTS of peers, still go slowly */
2044 find_peer_ctx->total = find_peer_ctx->last_sent - (find_peer_ctx->last_sent / 8);
2046 find_peer_ctx->total = find_peer_ctx->last_sent * 2;
2048 if (find_peer_ctx->total > max_outstanding_find_peers)
2049 find_peer_ctx->total = max_outstanding_find_peers;
2051 if (find_peer_ctx->total > num_peers) /* Don't try to send more messages than we have peers! */
2052 find_peer_ctx->total = num_peers;
2054 find_peer_ctx->last_sent = find_peer_ctx->total;
2055 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Sending %u find peer messages (goal at least %u connections)\n", find_peer_ctx->total, target_total_connections);
2057 find_peer_offset = GNUNET_TIME_relative_divide(find_peer_delay, find_peer_ctx->total);
2058 for (i = 0; i < find_peer_ctx->total; i++)
2060 test_find_peer = GNUNET_malloc(sizeof(struct TestFindPeer));
2061 if (find_peer_ctx->previous_peers == 0) /* If we haven't sent any requests yet, choose random peers */
2064 * Attempt to spread find peer requests across even sections of the peer address
2065 * space. Choose basically 1 peer in every num_peers / max_outstanding_requests
2066 * each time, then offset it by a randomish value.
2068 * For instance, if num_peers is 100 and max_outstanding is 10, first chosen peer
2069 * will be between 0 - 10, second between 10 - 20, etc.
2071 random = (num_peers / find_peer_ctx->total) * i;
2072 random = random + GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, (num_peers / find_peer_ctx->total));
2073 if (random >= num_peers)
2075 random = random - num_peers;
2078 random = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers);
2080 test_find_peer->daemon = GNUNET_TESTING_daemon_get(pg, random);
2082 else /* If we have sent requests, choose peers with a low number of connections to send requests from */
2084 peer_count = GNUNET_CONTAINER_heap_remove_root(find_peer_ctx->peer_min_heap);
2085 GNUNET_assert(GNUNET_YES == GNUNET_CONTAINER_multihashmap_remove(find_peer_ctx->peer_hash, &peer_count->peer_id.hashPubKey, peer_count));
2086 test_find_peer->daemon = GNUNET_TESTING_daemon_get_by_id(pg, &peer_count->peer_id);
2087 GNUNET_assert(test_find_peer->daemon != NULL);
2090 test_find_peer->find_peer_context = find_peer_ctx;
2091 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_multiply(find_peer_offset, i), &send_find_peer_request, test_find_peer);
2094 if ((find_peer_ctx->peer_hash == NULL) && (find_peer_ctx->peer_min_heap == NULL))
2096 find_peer_ctx->peer_hash = GNUNET_CONTAINER_multihashmap_create(num_peers);
2097 find_peer_ctx->peer_min_heap = GNUNET_CONTAINER_heap_create(GNUNET_CONTAINER_HEAP_ORDER_MIN);
2101 GNUNET_CONTAINER_multihashmap_iterate(find_peer_ctx->peer_hash, &remove_peer_count, find_peer_ctx);
2102 GNUNET_CONTAINER_multihashmap_destroy(find_peer_ctx->peer_hash);
2103 find_peer_ctx->peer_hash = GNUNET_CONTAINER_multihashmap_create(num_peers);
2106 GNUNET_assert(0 == GNUNET_CONTAINER_multihashmap_size(find_peer_ctx->peer_hash));
2107 GNUNET_assert(0 == GNUNET_CONTAINER_heap_get_size(find_peer_ctx->peer_min_heap));
2112 * Set up all of the put and get operations we want to do
2113 * in the current round. Allocate data structure for each,
2114 * add to list, then schedule the actual PUT operations.
2117 setup_puts_and_gets (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
2120 struct TestPutContext *test_put;
2121 struct TestGetContext *test_get;
2123 int remember[num_puts][num_peers];
2124 memset(&remember, 0, sizeof(int) * num_puts * num_peers);
2126 known_keys = GNUNET_malloc(sizeof(GNUNET_HashCode) * num_puts);
2127 for (i = 0; i < num_puts; i++)
2129 test_put = GNUNET_malloc(sizeof(struct TestPutContext));
2131 GNUNET_CRYPTO_hash_create_random (GNUNET_CRYPTO_QUALITY_WEAK, &known_keys[i]);
2132 /* Set first X bits to match the chosen sybil location if we want to do the sybil attack! */
2133 if (GNUNET_YES == malicious_sybil)
2135 memcpy(&known_keys[i], &sybil_target, sizeof(GNUNET_HashCode) / 2);
2136 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Distance between sybil location and key is %d\n", GNUNET_CRYPTO_hash_matching_bits(&known_keys[i], &sybil_target));
2138 test_put->daemon = GNUNET_TESTING_daemon_get(pg, GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers));
2139 /* Don't start PUTs at malicious peers! */
2140 if (malicious_bloom != NULL)
2142 while (GNUNET_YES == GNUNET_CONTAINER_bloomfilter_test(malicious_bloom, &test_put->daemon->id.hashPubKey))
2143 test_put->daemon = GNUNET_TESTING_daemon_get(pg, GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers));
2146 test_put->next = all_puts;
2147 all_puts = test_put;
2150 for (i = 0; i < num_gets; i++)
2152 test_get = GNUNET_malloc(sizeof(struct TestGetContext));
2153 test_get->uid = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_puts);
2155 while (remember[test_get->uid][temp_daemon] == 1)
2156 temp_daemon = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers);
2157 remember[test_get->uid][temp_daemon] = 1;
2159 test_get->daemon = GNUNET_TESTING_daemon_get(pg, GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers));
2160 /* Don't start GETs at malicious peers! */
2161 if (malicious_bloom != NULL)
2163 while (GNUNET_YES == GNUNET_CONTAINER_bloomfilter_test(malicious_bloom, &test_get->daemon->id.hashPubKey))
2164 test_get->daemon = GNUNET_TESTING_daemon_get(pg, GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers));
2166 test_get->next = all_gets;
2167 all_gets = test_get;
2170 /*GNUNET_SCHEDULER_cancel (die_task);*/
2171 die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, num_puts * 2),
2172 &end_badly, "from do puts");
2173 GNUNET_SCHEDULER_add_now (&do_put, all_puts);
2178 * Set up some all of the put and get operations we want
2179 * to do. Allocate data structure for each, add to list,
2180 * then call actual insert functions.
2183 continue_puts_and_gets (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
2187 struct TopologyIteratorContext *topo_ctx;
2188 struct FindPeerContext *find_peer_context;
2189 if (dhtlog_handle != NULL)
2191 if (settle_time >= 180 * 2)
2192 max = (settle_time / 180) - 2;
2195 for (i = 1; i < max; i++)
2197 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
2198 topo_ctx->current_iteration = i;
2199 topo_ctx->total_iterations = max;
2200 topo_ctx->peers_seen = GNUNET_CONTAINER_multihashmap_create(num_peers);
2201 //fprintf(stderr, "scheduled topology iteration in %d minutes\n", i);
2202 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MINUTES, i * 3), &capture_current_topology, topo_ctx);
2204 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
2205 topo_ctx->cont = &setup_puts_and_gets;
2206 topo_ctx->peers_seen = GNUNET_CONTAINER_multihashmap_create(num_peers);
2207 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, (settle_time + 90)), &capture_current_topology, topo_ctx);
2210 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, (settle_time + 90)), &setup_puts_and_gets, NULL);
2212 if (dhtlog_handle != NULL)
2213 dhtlog_handle->insert_round(DHT_ROUND_NORMAL, rounds_finished);
2215 if (GNUNET_YES != malicious_after_settle)
2217 GNUNET_SCHEDULER_add_now(&setup_malicious_peers, NULL);
2220 if (GNUNET_YES == do_find_peer)
2222 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Scheduling find peer requests during \"settle\" time.\n");
2223 find_peer_context = GNUNET_malloc(sizeof(struct FindPeerContext));
2224 find_peer_context->count_peers_cb = &count_peers_cb;
2225 find_peer_context->endtime = GNUNET_TIME_relative_to_absolute(GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, settle_time));
2226 GNUNET_SCHEDULER_add_now(&schedule_find_peer_requests, find_peer_context);
2230 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Assuming automatic DHT find peer requests.\n");
2235 * Task to release DHT handles
2238 malicious_disconnect_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
2240 struct MaliciousContext *ctx = cls;
2241 outstanding_malicious--;
2242 malicious_completed++;
2243 ctx->disconnect_task = GNUNET_SCHEDULER_NO_TASK;
2244 GNUNET_DHT_disconnect(ctx->dht_handle);
2245 ctx->dht_handle = NULL;
2248 if (malicious_completed == malicious_getters + malicious_putters + malicious_droppers)
2250 fprintf(stderr, "Finished setting all malicious peers up!\n");
2256 * Task to release DHT handles
2259 malicious_done_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
2261 struct MaliciousContext *ctx = cls;
2262 GNUNET_SCHEDULER_cancel(ctx->disconnect_task);
2263 GNUNET_SCHEDULER_add_now(&malicious_disconnect_task, ctx);
2267 * Set up some data, and call API PUT function
2270 set_malicious (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
2272 struct MaliciousContext *ctx = cls;
2274 if (outstanding_malicious > DEFAULT_MAX_OUTSTANDING_GETS)
2276 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MILLISECONDS, 100), &set_malicious, ctx);
2280 if (ctx->dht_handle == NULL)
2282 ctx->dht_handle = GNUNET_DHT_connect(ctx->daemon->cfg, 1);
2283 outstanding_malicious++;
2286 GNUNET_assert(ctx->dht_handle != NULL);
2290 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Setting peer %s malicious type %d\n",
2291 ctx->daemon->shortname, ctx->malicious_type);
2294 switch (ctx->malicious_type)
2296 case GNUNET_MESSAGE_TYPE_DHT_MALICIOUS_GET:
2297 GNUNET_DHT_set_malicious_getter(ctx->dht_handle, malicious_get_frequency);
2298 GNUNET_SCHEDULER_add_now (&malicious_done_task, ctx);
2300 case GNUNET_MESSAGE_TYPE_DHT_MALICIOUS_PUT:
2301 GNUNET_DHT_set_malicious_putter(ctx->dht_handle, malicious_put_frequency);
2302 GNUNET_SCHEDULER_add_now (&malicious_done_task, ctx);
2304 case GNUNET_MESSAGE_TYPE_DHT_MALICIOUS_DROP:
2305 GNUNET_DHT_set_malicious_dropper(ctx->dht_handle);
2306 GNUNET_SCHEDULER_add_now (&malicious_done_task, ctx);
2312 ctx->disconnect_task = GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_UNIT_FOREVER_REL,
2313 &malicious_disconnect_task, ctx);
2317 * Choose the next peer from the peer group to set as malicious.
2318 * If we are doing a sybil attack, find the nearest peer to the
2319 * sybil location that has not already been set malicious. Otherwise
2320 * just choose a random not already chosen peer.
2322 * @param pg the peer group
2323 * @param bloom the bloomfilter which contains all peer already
2324 * chosen to be malicious
2327 choose_next_malicious (struct GNUNET_TESTING_PeerGroup *pg, struct GNUNET_CONTAINER_BloomFilter *bloom)
2333 struct GNUNET_TESTING_Daemon *temp_daemon;
2337 if (GNUNET_YES == malicious_sybil)
2339 for (i = 0; i < num_peers; i++)
2341 temp_daemon = GNUNET_TESTING_daemon_get(pg, i);
2342 /* Check if this peer matches the bloomfilter */
2343 if (GNUNET_YES == GNUNET_CONTAINER_bloomfilter_test (bloom, &temp_daemon->id.hashPubKey))
2346 bits_match = GNUNET_CRYPTO_hash_matching_bits (&temp_daemon->id.hashPubKey, &sybil_target);
2347 if (bits_match >= curr_distance)
2349 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Found nearer peer %s to %s, old matching bits %d, new %d\n", GNUNET_i2s(&temp_daemon->id), GNUNET_h2s(&sybil_target), curr_distance, bits_match);
2351 curr_distance = bits_match;
2357 nearest = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers);
2358 while (GNUNET_YES == GNUNET_CONTAINER_bloomfilter_test (bloom, &temp_daemon->id.hashPubKey))
2360 nearest = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers);
2368 * Select randomly from set of known peers,
2369 * set the desired number of peers to the
2370 * proper malicious types.
2373 setup_malicious_peers (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
2375 struct MaliciousContext *ctx;
2377 uint32_t temp_daemon;
2379 for (i = 0; i < malicious_getters; i++)
2381 ctx = GNUNET_malloc(sizeof(struct MaliciousContext));
2382 temp_daemon = choose_next_malicious(pg, malicious_bloom);
2383 ctx->daemon = GNUNET_TESTING_daemon_get(pg, temp_daemon);
2384 GNUNET_CONTAINER_bloomfilter_add(malicious_bloom, &ctx->daemon->id.hashPubKey);
2385 ctx->malicious_type = GNUNET_MESSAGE_TYPE_DHT_MALICIOUS_GET;
2386 GNUNET_SCHEDULER_add_now (&set_malicious, ctx);
2390 for (i = 0; i < malicious_putters; i++)
2392 ctx = GNUNET_malloc(sizeof(struct MaliciousContext));
2393 temp_daemon = choose_next_malicious(pg, malicious_bloom);
2394 ctx->daemon = GNUNET_TESTING_daemon_get(pg, temp_daemon);
2395 GNUNET_CONTAINER_bloomfilter_add(malicious_bloom, &ctx->daemon->id.hashPubKey);
2396 ctx->malicious_type = GNUNET_MESSAGE_TYPE_DHT_MALICIOUS_PUT;
2397 GNUNET_SCHEDULER_add_now (&set_malicious, ctx);
2401 for (i = 0; i < malicious_droppers; i++)
2403 ctx = GNUNET_malloc(sizeof(struct MaliciousContext));
2404 temp_daemon = choose_next_malicious(pg, malicious_bloom);
2405 ctx->daemon = GNUNET_TESTING_daemon_get(pg, temp_daemon);
2406 GNUNET_CONTAINER_bloomfilter_add(malicious_bloom, &ctx->daemon->id.hashPubKey);
2407 ctx->malicious_type = GNUNET_MESSAGE_TYPE_DHT_MALICIOUS_DROP;
2408 GNUNET_SCHEDULER_add_now (&set_malicious, ctx);
2413 * This function is called whenever a connection attempt is finished between two of
2414 * the started peers (started with GNUNET_TESTING_daemons_start). The total
2415 * number of times this function is called should equal the number returned
2416 * from the GNUNET_TESTING_connect_topology call.
2418 * The emsg variable is NULL on success (peers connected), and non-NULL on
2419 * failure (peers failed to connect).
2422 topology_callback (void *cls,
2423 const struct GNUNET_PeerIdentity *first,
2424 const struct GNUNET_PeerIdentity *second,
2426 const struct GNUNET_CONFIGURATION_Handle *first_cfg,
2427 const struct GNUNET_CONFIGURATION_Handle *second_cfg,
2428 struct GNUNET_TESTING_Daemon *first_daemon,
2429 struct GNUNET_TESTING_Daemon *second_daemon,
2432 struct TopologyIteratorContext *topo_ctx;
2435 total_connections++;
2437 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "connected peer %s to peer %s, distance %u\n",
2438 first_daemon->shortname,
2439 second_daemon->shortname,
2445 failed_connections++;
2446 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Failed to connect peer %s to peer %s with error :\n%s\n",
2447 first_daemon->shortname,
2448 second_daemon->shortname, emsg);
2450 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Failed to connect peer %s to peer %s with error :\n%s\n",
2451 first_daemon->shortname,
2452 second_daemon->shortname, emsg);
2456 GNUNET_assert(peer_connect_meter != NULL);
2457 if (GNUNET_YES == update_meter(peer_connect_meter))
2460 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2461 "Created %d total connections, which is our target number! Starting next phase of testing.\n",
2464 if (failed_connections > 0)
2465 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "While connecting, had %u failed connections.\n", failed_connections);
2466 if (dhtlog_handle != NULL)
2468 dhtlog_handle->update_connections (total_connections);
2469 dhtlog_handle->insert_topology(expected_connections);
2472 GNUNET_SCHEDULER_cancel (die_task);
2474 if ((dhtlog_handle != NULL) && (settle_time > 0))
2476 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
2477 topo_ctx->cont = &continue_puts_and_gets;
2478 topo_ctx->peers_seen = GNUNET_CONTAINER_multihashmap_create(num_peers);
2479 GNUNET_SCHEDULER_add_now(&capture_current_topology, topo_ctx);
2482 else if (total_connections + failed_connections == expected_connections)
2484 GNUNET_SCHEDULER_cancel (die_task);
2485 die_task = GNUNET_SCHEDULER_add_now (&end_badly, "from topology_callback (too many failed connections)");
2490 peers_started_callback (void *cls,
2491 const struct GNUNET_PeerIdentity *id,
2492 const struct GNUNET_CONFIGURATION_Handle *cfg,
2493 struct GNUNET_TESTING_Daemon *d, const char *emsg)
2497 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Failed to start daemon with error: `%s'\n",
2501 GNUNET_assert (id != NULL);
2504 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Started daemon %llu out of %llu\n",
2505 (num_peers - peers_left) + 1, num_peers);
2510 if (GNUNET_YES == update_meter(peer_start_meter))
2513 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2514 "All %d daemons started, now connecting peers!\n",
2517 GNUNET_SCHEDULER_cancel (die_task);
2519 expected_connections = UINT_MAX;
2520 if ((pg != NULL) && (peers_left == 0))
2522 expected_connections = GNUNET_TESTING_connect_topology (pg, connect_topology, connect_topology_option, connect_topology_option_modifier, NULL, NULL);
2524 peer_connect_meter = create_meter(expected_connections, "Peer connection ", GNUNET_YES);
2525 fprintf(stderr, "Have %d expected connections\n", expected_connections);
2528 if (expected_connections == GNUNET_SYSERR)
2530 die_task = GNUNET_SCHEDULER_add_now (&end_badly, "from connect topology (bad return)");
2533 die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, DEFAULT_CONNECT_TIMEOUT * expected_connections),
2534 &end_badly, "from connect topology (timeout)");
2543 peers_left = num_peers; /* Reset counter */
2544 if (GNUNET_TESTING_create_topology (pg, topology, blacklist_topology, blacklist_transports) != GNUNET_SYSERR)
2547 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2548 "Topology set up, now starting peers!\n");
2550 GNUNET_TESTING_daemons_continue_startup(pg);
2554 GNUNET_SCHEDULER_cancel (die_task);
2555 die_task = GNUNET_SCHEDULER_add_now (&end_badly, "from create topology (bad return)");
2557 GNUNET_free_non_null(blacklist_transports);
2558 GNUNET_SCHEDULER_cancel (die_task);
2559 die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(seconds_per_peer_start, num_peers),
2560 &end_badly, "from continue startup (timeout)");
2564 * Callback indicating that the hostkey was created for a peer.
2567 * @param id the peer identity
2568 * @param d the daemon handle (pretty useless at this point, remove?)
2569 * @param emsg non-null on failure
2572 hostkey_callback (void *cls,
2573 const struct GNUNET_PeerIdentity *id,
2574 struct GNUNET_TESTING_Daemon *d,
2579 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Hostkey callback received error: %s\n", emsg);
2583 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2584 "Hostkey (%d/%d) created for peer `%s'\n",
2585 num_peers - peers_left, num_peers, GNUNET_i2s(id));
2589 if (GNUNET_YES == update_meter(hostkey_meter))
2592 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2593 "All %d hostkeys created, now creating topology!\n",
2596 GNUNET_SCHEDULER_cancel (die_task);
2597 /* Set up task in case topology creation doesn't finish
2598 * within a reasonable amount of time */
2599 die_task = GNUNET_SCHEDULER_add_delayed (DEFAULT_TOPOLOGY_TIMEOUT,
2600 &end_badly, "from create_topology");
2601 GNUNET_SCHEDULER_add_now(&create_topology, NULL);
2610 const char *cfgfile, const struct GNUNET_CONFIGURATION_Handle *cfg)
2613 struct GNUNET_DHTLOG_TrialInfo trial_info;
2614 struct GNUNET_TESTING_Host *hosts;
2615 struct GNUNET_TESTING_Host *temphost;
2616 struct GNUNET_TESTING_Host *tempnext;
2618 char *connect_topology_str;
2619 char *blacklist_topology_str;
2620 char *connect_topology_option_str;
2621 char *connect_topology_option_modifier_string;
2623 char *topology_percentage_str;
2624 float topology_percentage;
2625 char *topology_probability_str;
2627 float topology_probability;
2628 unsigned long long temp_config_number;
2629 unsigned long long trial_to_run;
2632 int strict_kademlia;
2636 char *churn_filename;
2643 rounds_finished = 0;
2644 memset(&trial_info, 0, sizeof(struct GNUNET_DHTLOG_TrialInfo));
2645 /* Get path from configuration file */
2646 if (GNUNET_YES != GNUNET_CONFIGURATION_get_value_string(cfg, "paths", "servicehome", &test_directory))
2652 /* Get number of peers to start from configuration */
2653 if (GNUNET_SYSERR ==
2654 GNUNET_CONFIGURATION_get_value_number (cfg, "testing", "num_peers",
2657 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2658 "Number of peers must be specified in section %s option %s\n", "TESTING", "NUM_PEERS");
2660 GNUNET_assert(num_peers > 0 && num_peers < ULONG_MAX);
2663 * Get DHT specific testing options.
2665 if ((GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht_testing", "mysql_logging")) ||
2666 (GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht_testing", "mysql_logging_extended")))
2668 dhtlog_handle = GNUNET_DHTLOG_connect(cfg);
2669 if (dhtlog_handle == NULL)
2671 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2672 "Could not connect to mysql server for logging, will NOT log dht operations!");
2678 stop_closest = GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht", "stop_on_closest");
2679 if (stop_closest == GNUNET_SYSERR)
2680 stop_closest = GNUNET_NO;
2682 stop_found = GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht", "stop_found");
2683 if (stop_found == GNUNET_SYSERR)
2684 stop_found = GNUNET_NO;
2686 strict_kademlia = GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht", "strict_kademlia");
2687 if (strict_kademlia == GNUNET_SYSERR)
2688 strict_kademlia = GNUNET_NO;
2691 GNUNET_CONFIGURATION_get_value_string (cfg, "dht_testing", "comment",
2693 trialmessage = NULL;
2696 /** Check for a churn file to do churny simulation */
2698 GNUNET_CONFIGURATION_get_value_string(cfg, "dht_testing", "churn_file",
2701 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Reading churn data from %s\n", churn_filename);
2702 if (GNUNET_OK != GNUNET_DISK_file_test (churn_filename))
2704 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Error reading churn file!\n");
2705 GNUNET_free_non_null(trialmessage);
2706 GNUNET_free(churn_filename);
2709 if ((0 != STAT (churn_filename, &frstat)) || (frstat.st_size == 0))
2711 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
2712 "Could not open file specified for churn data, ending test!");
2714 GNUNET_free_non_null(trialmessage);
2715 GNUNET_free(churn_filename);
2719 churn_data = GNUNET_malloc_large (frstat.st_size);
2720 GNUNET_assert(churn_data != NULL);
2721 if (frstat.st_size !=
2722 GNUNET_DISK_fn_read (churn_filename, churn_data, frstat.st_size))
2724 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
2725 "Could not read file %s specified for churn, ending test!", churn_filename);
2726 GNUNET_free (churn_filename);
2727 GNUNET_free (churn_data);
2728 GNUNET_free_non_null(trialmessage);
2732 GNUNET_free_non_null(churn_filename);
2736 /* Read the first line */
2737 while (count < frstat.st_size)
2740 if (((churn_data[count] == '\n')) && (buf != &churn_data[count]))
2742 churn_data[count] = '\0';
2743 if (1 != sscanf(buf, "%u", &churn_rounds))
2745 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Failed to read number of rounds from churn file, ending test!\n");
2747 GNUNET_free_non_null(trialmessage);
2748 GNUNET_free_non_null(churn_data);
2751 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Read %u rounds from churn file\n", churn_rounds);
2752 buf = &churn_data[count + 1];
2753 churn_array = GNUNET_malloc(sizeof(unsigned int) * churn_rounds);
2754 break; /* Done with this part */
2758 if (GNUNET_OK != GNUNET_CONFIGURATION_get_value_number(cfg, "dht_testing", "churns_per_round", &churns_per_round))
2760 churns_per_round = (unsigned long long)churn_rounds;
2764 while ((count < frstat.st_size) && (line_number < churn_rounds))
2767 if (((churn_data[count] == '\n')) && (buf != &churn_data[count]))
2769 churn_data[count] = '\0';
2771 ret = sscanf(buf, "%u", &churn_array[line_number]);
2774 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Read %u peers in round %u\n", churn_array[line_number], line_number);
2779 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Error reading line `%s' in hostfile\n", buf);
2780 buf = &churn_data[count + 1];
2783 buf = &churn_data[count + 1];
2785 else if (churn_data[count] == '\n') /* Blank line */
2786 buf = &churn_data[count + 1];
2789 GNUNET_free_non_null(churn_data);
2791 /* Check for a hostfile containing user@host:port triples */
2793 GNUNET_CONFIGURATION_get_value_string (cfg, "testing", "hostfile",
2800 if (hostfile != NULL)
2802 if (GNUNET_OK != GNUNET_DISK_file_test (hostfile))
2803 GNUNET_DISK_fn_write (hostfile, NULL, 0, GNUNET_DISK_PERM_USER_READ
2804 | GNUNET_DISK_PERM_USER_WRITE);
2805 if ((0 != STAT (hostfile, &frstat)) || (frstat.st_size == 0))
2807 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
2808 "Could not open file specified for host list, ending test!");
2810 GNUNET_free_non_null(trialmessage);
2811 GNUNET_free(hostfile);
2815 data = GNUNET_malloc_large (frstat.st_size);
2816 GNUNET_assert(data != NULL);
2817 if (frstat.st_size !=
2818 GNUNET_DISK_fn_read (hostfile, data, frstat.st_size))
2820 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
2821 "Could not read file %s specified for host list, ending test!", hostfile);
2822 GNUNET_free (hostfile);
2824 GNUNET_free_non_null(trialmessage);
2828 GNUNET_free_non_null(hostfile);
2832 while (count < frstat.st_size - 1)
2835 /* if (((data[count] == '\n') || (data[count] == '\0')) && (buf != &data[count]))*/
2836 if (((data[count] == '\n')) && (buf != &data[count]))
2839 temphost = GNUNET_malloc(sizeof(struct GNUNET_TESTING_Host));
2840 ret = sscanf(buf, "%a[a-zA-Z0-9]@%a[a-zA-Z0-9.]:%hd", &temphost->username, &temphost->hostname, &temphost->port);
2843 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Successfully read host %s, port %d and user %s from file\n", temphost->hostname, temphost->port, temphost->username);
2847 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Error reading line `%s' in hostfile\n", buf);
2848 GNUNET_free(temphost);
2849 buf = &data[count + 1];
2852 /* temphost->hostname = buf; */
2853 temphost->next = hosts;
2855 buf = &data[count + 1];
2857 else if ((data[count] == '\n') || (data[count] == '\0'))
2858 buf = &data[count + 1];
2861 GNUNET_free_non_null(data);
2863 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "malicious_getters",
2864 &malicious_getters))
2865 malicious_getters = 0;
2868 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "malicious_putters",
2869 &malicious_putters))
2870 malicious_putters = 0;
2873 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "malicious_droppers",
2874 &malicious_droppers))
2875 malicious_droppers = 0;
2878 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "settle_time",
2882 if (GNUNET_SYSERR ==
2883 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "num_puts",
2885 num_puts = num_peers;
2887 if (GNUNET_SYSERR ==
2888 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "put_replication",
2890 put_replication = DEFAULT_PUT_REPLICATION;
2892 if (GNUNET_SYSERR ==
2893 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "num_gets",
2895 num_gets = num_peers;
2897 if (GNUNET_SYSERR ==
2898 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "get_replication",
2900 get_replication = DEFAULT_GET_REPLICATION;
2903 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "find_peer_delay",
2904 &temp_config_number))
2905 find_peer_delay = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_config_number);
2907 find_peer_delay = DEFAULT_FIND_PEER_DELAY;
2910 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "concurrent_find_peers",
2911 &temp_config_number))
2912 max_outstanding_find_peers = temp_config_number;
2914 max_outstanding_find_peers = DEFAULT_MAX_OUTSTANDING_FIND_PEERS;
2917 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "get_timeout",
2918 &temp_config_number))
2919 get_timeout = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_config_number);
2921 get_timeout = DEFAULT_GET_TIMEOUT;
2924 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "concurrent_puts",
2925 &temp_config_number))
2926 max_outstanding_puts = temp_config_number;
2928 max_outstanding_puts = DEFAULT_MAX_OUTSTANDING_PUTS;
2931 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "concurrent_gets",
2932 &temp_config_number))
2933 max_outstanding_gets = temp_config_number;
2935 max_outstanding_gets = DEFAULT_MAX_OUTSTANDING_GETS;
2938 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "timeout",
2939 &temp_config_number))
2940 all_get_timeout = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_config_number);
2942 all_get_timeout.rel_value = get_timeout.rel_value * num_gets;
2945 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "get_delay",
2946 &temp_config_number))
2947 get_delay = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_config_number);
2949 get_delay = DEFAULT_GET_DELAY;
2952 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "put_delay",
2953 &temp_config_number))
2954 put_delay = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_config_number);
2956 put_delay = DEFAULT_PUT_DELAY;
2959 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "peer_start_timeout",
2960 &temp_config_number))
2961 seconds_per_peer_start = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_config_number);
2963 seconds_per_peer_start = DEFAULT_SECONDS_PER_PEER_START;
2966 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "data_size",
2967 &temp_config_number))
2968 test_data_size = temp_config_number;
2970 test_data_size = DEFAULT_TEST_DATA_SIZE;
2973 * Get testing related options.
2975 if (GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno(cfg, "DHT_TESTING", "REPLICATE_SAME"))
2976 replicate_same = GNUNET_YES;
2979 * Get testing related options.
2981 if (GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno(cfg, "DHT_TESTING", "GET_FROM_SAME"))
2982 get_from_same = GNUNET_YES;
2985 if (GNUNET_NO == GNUNET_CONFIGURATION_get_value_time (cfg, "DHT_TESTING",
2986 "MALICIOUS_GET_FREQUENCY",
2987 &malicious_get_frequency))
2988 malicious_get_frequency = DEFAULT_MALICIOUS_GET_FREQUENCY;
2991 if (GNUNET_NO == GNUNET_CONFIGURATION_get_value_time (cfg, "DHT_TESTING",
2992 "MALICIOUS_PUT_FREQUENCY",
2993 &malicious_put_frequency))
2994 malicious_put_frequency = DEFAULT_MALICIOUS_PUT_FREQUENCY;
2996 if (GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno(cfg, "DHT_TESTING", "MALICIOUS_AFTER_SETTLE"))
2997 malicious_after_settle = GNUNET_YES;
2999 if (GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno(cfg, "DHT_TESTING", "MALICIOUS_SYBIL"))
3001 /* Set up the malicious target at random for this round */
3002 GNUNET_CRYPTO_hash_create_random (GNUNET_CRYPTO_QUALITY_WEAK, &sybil_target);
3003 malicious_sybil = GNUNET_YES;
3006 if ((malicious_droppers > 0) || (malicious_getters > 0) || (malicious_putters > 0))
3008 /* Create the bloomfilter for choosing which peers to set malicious */
3009 malicious_bloom = GNUNET_CONTAINER_bloomfilter_init (NULL, DHT_BLOOM_SIZE, DHT_BLOOM_K);
3012 /* The normal behavior of the DHT is to do find peer requests
3013 * on its own. Only if this is explicitly turned off should
3014 * the testing driver issue find peer requests (even though
3015 * this is likely the default when testing).
3018 GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht",
3021 do_find_peer = GNUNET_YES;
3025 GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht",
3028 in_dht_replication = GNUNET_YES;
3031 if (GNUNET_YES != GNUNET_CONFIGURATION_get_value_number (cfg, "DHT_TESTING",
3038 if (GNUNET_YES == GNUNET_CONFIGURATION_get_value_number (cfg, "DHT_TESTING",
3040 &temp_config_number))
3042 find_peer_delay = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_config_number);
3045 find_peer_delay = DEFAULT_FIND_PEER_DELAY;
3047 if (GNUNET_YES != GNUNET_CONFIGURATION_get_value_number(cfg, "DHT_TESTING", "ROUND_DELAY", &round_delay))
3050 if (GNUNET_NO == GNUNET_CONFIGURATION_get_value_number (cfg, "DHT_TESTING",
3051 "OUTSTANDING_FIND_PEERS",
3052 &max_outstanding_find_peers))
3053 max_outstanding_find_peers = DEFAULT_MAX_OUTSTANDING_FIND_PEERS;
3055 if (GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht", "strict_kademlia"))
3056 max_outstanding_find_peers = max_outstanding_find_peers * 1;
3058 find_peer_offset = GNUNET_TIME_relative_divide (find_peer_delay, max_outstanding_find_peers);
3060 if (GNUNET_SYSERR ==
3061 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "num_rounds",
3067 if ((GNUNET_SYSERR ==
3068 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "target_total_connections",
3069 &target_total_connections)) ||
3070 (target_total_connections == 0))
3072 target_total_connections = connection_estimate(num_peers, DEFAULT_BUCKET_SIZE);
3075 topology_str = NULL;
3077 GNUNET_CONFIGURATION_get_value_string(cfg, "testing", "topology",
3078 &topology_str)) && (GNUNET_NO == GNUNET_TESTING_topology_get(&topology, topology_str)))
3080 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
3081 "Invalid topology `%s' given for section %s option %s\n", topology_str, "TESTING", "TOPOLOGY");
3082 topology = GNUNET_TESTING_TOPOLOGY_CLIQUE; /* Defaults to NONE, so set better default here */
3086 GNUNET_CONFIGURATION_get_value_string (cfg, "testing", "percentage",
3087 &topology_percentage_str))
3088 topology_percentage = 0.5;
3091 topology_percentage = atof (topology_percentage_str);
3092 GNUNET_free(topology_percentage_str);
3096 GNUNET_CONFIGURATION_get_value_string (cfg, "testing", "probability",
3097 &topology_probability_str))
3098 topology_probability = 0.5;
3101 topology_probability = atof (topology_probability_str);
3102 GNUNET_free(topology_probability_str);
3106 GNUNET_CONFIGURATION_get_value_string(cfg, "testing", "connect_topology",
3107 &connect_topology_str)) && (GNUNET_NO == GNUNET_TESTING_topology_get(&connect_topology, connect_topology_str)))
3109 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
3110 "Invalid connect topology `%s' given for section %s option %s\n", connect_topology_str, "TESTING", "CONNECT_TOPOLOGY");
3112 GNUNET_free_non_null(connect_topology_str);
3115 GNUNET_CONFIGURATION_get_value_string(cfg, "testing", "connect_topology_option",
3116 &connect_topology_option_str)) && (GNUNET_NO == GNUNET_TESTING_topology_option_get(&connect_topology_option, connect_topology_option_str)))
3118 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
3119 "Invalid connect topology option `%s' given for section %s option %s\n", connect_topology_option_str, "TESTING", "CONNECT_TOPOLOGY_OPTION");
3120 connect_topology_option = GNUNET_TESTING_TOPOLOGY_OPTION_ALL; /* Defaults to NONE, set to ALL */
3122 GNUNET_free_non_null(connect_topology_option_str);
3125 GNUNET_CONFIGURATION_get_value_string (cfg, "testing", "connect_topology_option_modifier",
3126 &connect_topology_option_modifier_string))
3128 if (sscanf(connect_topology_option_modifier_string, "%lf", &connect_topology_option_modifier) != 1)
3130 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
3131 _("Invalid value `%s' for option `%s' in section `%s': expected float\n"),
3132 connect_topology_option_modifier_string,
3133 "connect_topology_option_modifier",
3136 GNUNET_free (connect_topology_option_modifier_string);
3139 if (GNUNET_YES != GNUNET_CONFIGURATION_get_value_string (cfg, "testing", "blacklist_transports",
3140 &blacklist_transports))
3141 blacklist_transports = NULL;
3144 GNUNET_CONFIGURATION_get_value_string(cfg, "testing", "blacklist_topology",
3145 &blacklist_topology_str)) &&
3146 (GNUNET_NO == GNUNET_TESTING_topology_get(&blacklist_topology, blacklist_topology_str)))
3148 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
3149 "Invalid topology `%s' given for section %s option %s\n", topology_str, "TESTING", "BLACKLIST_TOPOLOGY");
3151 GNUNET_free_non_null(topology_str);
3152 GNUNET_free_non_null(blacklist_topology_str);
3154 /* Set peers_left so we know when all peers started */
3155 peers_left = num_peers;
3158 /* Set up a task to end testing if peer start fails */
3159 die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(seconds_per_peer_start, num_peers),
3160 &end_badly, "didn't generate all hostkeys within allowed startup time!");
3162 if (dhtlog_handle == NULL)
3163 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
3164 "dhtlog_handle is NULL!");
3166 trial_info.other_identifier = (unsigned int)trial_to_run;
3167 trial_info.num_nodes = peers_left;
3168 trial_info.topology = topology;
3169 trial_info.blacklist_topology = blacklist_topology;
3170 trial_info.connect_topology = connect_topology;
3171 trial_info.connect_topology_option = connect_topology_option;
3172 trial_info.connect_topology_option_modifier = connect_topology_option_modifier;
3173 trial_info.topology_percentage = topology_percentage;
3174 trial_info.topology_probability = topology_probability;
3175 trial_info.puts = num_puts;
3176 trial_info.gets = num_gets;
3177 trial_info.concurrent = max_outstanding_gets;
3178 trial_info.settle_time = settle_time;
3179 trial_info.num_rounds = total_rounds;
3180 trial_info.malicious_getters = malicious_getters;
3181 trial_info.malicious_putters = malicious_putters;
3182 trial_info.malicious_droppers = malicious_droppers;
3183 trial_info.malicious_get_frequency = malicious_get_frequency.rel_value;
3184 trial_info.malicious_put_frequency = malicious_put_frequency.rel_value;
3185 trial_info.stop_closest = stop_closest;
3186 trial_info.stop_found = stop_found;
3187 trial_info.strict_kademlia = strict_kademlia;
3189 if (trialmessage != NULL)
3190 trial_info.message = trialmessage;
3192 trial_info.message = "";
3194 if (dhtlog_handle != NULL)
3195 dhtlog_handle->insert_trial(&trial_info);
3197 GNUNET_free_non_null(trialmessage);
3199 hostkey_meter = create_meter(peers_left, "Hostkeys created ", GNUNET_YES);
3200 peer_start_meter = create_meter(peers_left, "Peers started ", GNUNET_YES);
3202 put_meter = create_meter(num_puts, "Puts completed ", GNUNET_YES);
3203 get_meter = create_meter(num_gets, "Gets completed ", GNUNET_YES);
3204 pg = GNUNET_TESTING_daemons_start (cfg,
3206 GNUNET_TIME_relative_multiply(seconds_per_peer_start, num_peers),
3207 &hostkey_callback, NULL,
3208 &peers_started_callback, NULL,
3209 &topology_callback, NULL,
3212 while (temphost != NULL)
3214 tempnext = temphost->next;
3215 GNUNET_free (temphost->username);
3216 GNUNET_free (temphost->hostname);
3217 GNUNET_free (temphost);
3218 temphost = tempnext;
3223 main (int argc, char *argv[])
3226 struct GNUNET_GETOPT_CommandLineOption options[] = {
3227 GNUNET_GETOPT_OPTION_END
3230 ret = GNUNET_PROGRAM_run (argc,
3231 argv, "gnunet-dht-driver", "nohelp",
3232 options, &run, &ok);
3235 if (malicious_bloom != NULL)
3236 GNUNET_CONTAINER_bloomfilter_free (malicious_bloom);
3238 if (ret != GNUNET_OK)
3240 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "`gnunet-dht-driver': Failed with error code %d\n", ret);
3244 * Need to remove base directory, subdirectories taken care
3245 * of by the testing framework.
3247 if (GNUNET_DISK_directory_remove (test_directory) != GNUNET_OK)
3249 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Failed to remove testing directory %s\n", test_directory);
3254 /* end of gnunet-dht-driver.c */