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"
38 /* Specific DEBUG hack, do not use normally (may leak memory, segfault, or eat children.) */
39 #define ONLY_TESTING GNUNET_YES
42 #define VERBOSE GNUNET_NO
44 /* Timeout for entire driver to run */
45 #define DEFAULT_TIMEOUT GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MINUTES, 5)
47 /* Timeout for waiting for (individual) replies to get requests */
48 #define DEFAULT_GET_TIMEOUT GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 10)
50 #define DEFAULT_TOPOLOGY_CAPTURE_TIMEOUT GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 90)
52 /* Timeout for waiting for gets to be sent to the service */
53 #define DEFAULT_GET_DELAY GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 10)
55 /* Timeout for waiting for puts to be sent to the service */
56 #define DEFAULT_PUT_DELAY GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 10)
58 /* Time to allow a find peer request to take */
59 #define DEFAULT_FIND_PEER_DELAY GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 40)
61 /* Time to wait for all peers disconnected due to to churn to actually be removed from system */
62 #define DEFAULT_PEER_DISCONNECT_TIMEOUT GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MINUTES, 5)
64 #define DEFAULT_SECONDS_PER_PEER_START GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 45)
66 #define DEFAULT_TEST_DATA_SIZE 8
68 #define DEFAULT_BUCKET_SIZE 4
70 #define FIND_PEER_THRESHOLD 1
72 /* If more than this many peers are added, slow down sending */
73 #define MAX_FIND_PEER_CUTOFF 2000
75 /* If less than this many peers are added, speed up sending */
76 #define MIN_FIND_PEER_CUTOFF 500
78 /* How often (in seconds) to print out connection information */
79 #define CONN_UPDATE_DURATION 10
81 #define DEFAULT_MAX_OUTSTANDING_PUTS 10
83 #define DEFAULT_MAX_OUTSTANDING_FIND_PEERS 64
85 #define DEFAULT_FIND_PEER_OFFSET GNUNET_TIME_relative_divide (DEFAULT_FIND_PEER_DELAY, DEFAULT_MAX_OUTSTANDING_FIND_PEERS)
87 #define DEFAULT_MAX_OUTSTANDING_GETS 10
89 #define DEFAULT_CONNECT_TIMEOUT 60
91 #define DEFAULT_TOPOLOGY_TIMEOUT GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MINUTES, 8)
93 #define DEFAULT_RECONNECT_ATTEMPTS 8
96 * Default frequency for sending malicious get messages
98 #define DEFAULT_MALICIOUS_GET_FREQUENCY GNUNET_TIME_UNIT_SECONDS
101 * Default frequency for sending malicious put messages
103 #define DEFAULT_MALICIOUS_PUT_FREQUENCY GNUNET_TIME_UNIT_SECONDS
107 struct MaliciousContext
110 * Handle to DHT service (via the API)
112 struct GNUNET_DHT_Handle *dht_handle;
115 * Handle to the peer daemon
117 struct GNUNET_TESTING_Daemon *daemon;
120 * Task for disconnecting DHT handles
122 GNUNET_SCHEDULER_TaskIdentifier disconnect_task;
125 * What type of malicious to set this peer to.
132 /* This is a linked list */
133 struct TestFindPeer *next;
135 /* Handle to the bigger context */
136 struct FindPeerContext *find_peer_context;
139 * Handle to the peer's DHT service (via the API)
141 struct GNUNET_DHT_Handle *dht_handle;
144 * Handle to the peer daemon
146 struct GNUNET_TESTING_Daemon *daemon;
149 * Task for disconnecting DHT handles
151 GNUNET_SCHEDULER_TaskIdentifier disconnect_task;
154 struct TestPutContext
156 /* This is a linked list */
157 struct TestPutContext *next;
160 * Handle to the first peers DHT service (via the API)
162 struct GNUNET_DHT_Handle *dht_handle;
165 * Handle to the PUT peer daemon
167 struct GNUNET_TESTING_Daemon *daemon;
170 * Identifier for this PUT
175 * Task for disconnecting DHT handles
177 GNUNET_SCHEDULER_TaskIdentifier disconnect_task;
180 struct TestGetContext
182 /* This is a linked list */
183 struct TestGetContext *next;
186 * Handle to the first peers DHT service (via the API)
188 struct GNUNET_DHT_Handle *dht_handle;
191 * Handle for the DHT get request
193 struct GNUNET_DHT_GetHandle *get_handle;
196 * Handle to the GET peer daemon
198 struct GNUNET_TESTING_Daemon *daemon;
201 * Identifier for this GET
206 * Task for disconnecting DHT handles (and stopping GET)
208 GNUNET_SCHEDULER_TaskIdentifier disconnect_task;
211 * Whether or not this request has been fulfilled already.
217 * Simple struct to keep track of progress, and print a
218 * nice little percentage meter for long running tasks.
228 unsigned int completed;
232 char *startup_string;
236 * Linked list of information for populating statistics
237 * before ending trial.
239 struct StatisticsIteratorContext
241 const struct GNUNET_PeerIdentity *peer;
242 unsigned int stat_routes;
243 unsigned int stat_route_forwards;
244 unsigned int stat_results;
245 unsigned int stat_results_to_client;
246 unsigned int stat_result_forwards;
247 unsigned int stat_gets;
248 unsigned int stat_puts;
249 unsigned int stat_puts_inserted;
250 unsigned int stat_find_peer;
251 unsigned int stat_find_peer_start;
252 unsigned int stat_get_start;
253 unsigned int stat_put_start;
254 unsigned int stat_find_peer_reply;
255 unsigned int stat_get_reply;
256 unsigned int stat_find_peer_answer;
257 unsigned int stat_get_response_start;
261 * Context for getting a topology, logging it, and continuing
262 * on with some next operation.
264 struct TopologyIteratorContext
266 unsigned int total_iterations;
267 unsigned int current_iteration;
268 unsigned int total_connections;
269 unsigned int total_peers;
270 struct GNUNET_CONTAINER_MultiHashMap *peers_seen;
271 struct GNUNET_PeerIdentity *peer;
272 GNUNET_SCHEDULER_Task cont;
274 struct GNUNET_TIME_Relative timeout;
280 /** Node in the heap */
281 struct GNUNET_CONTAINER_HeapNode *heap_node;
283 /** Peer the count refers to */
284 struct GNUNET_PeerIdentity peer_id;
286 /** Count of connections this peer has */
291 * Context for sending out find peer requests.
293 struct FindPeerContext
296 * How long to send find peer requests, once the settle time
297 * is over don't send any more out!
299 struct GNUNET_TIME_Absolute endtime;
302 * Number of connections in the current topology
303 * (after this round of find peer requests has ended).
305 unsigned int current_peers;
308 * Number of connections in the current topology
309 * (before this round of find peer requests started).
311 unsigned int previous_peers;
314 * Number of find peer requests we have currently
317 unsigned int outstanding;
320 * Number of find peer requests to send in this round.
325 * Number of find peer requests sent last time around.
327 unsigned int last_sent;
330 * Hashmap of peers in the current topology, value
331 * is a PeerCount, with the number of connections
334 struct GNUNET_CONTAINER_MultiHashMap *peer_hash;
337 * Min heap which orders values in the peer_hash for
340 struct GNUNET_CONTAINER_Heap *peer_min_heap;
343 * Callback for counting the peers in the current topology.
345 GNUNET_TESTING_NotifyTopology count_peers_cb;
351 * Next full round (puts + gets).
356 * Next round of gets.
361 * Next round of puts.
366 * Next round of churn.
376 * How long to try to connect two peers.
378 struct GNUNET_TIME_Relative connect_timeout;
381 * How many times to re-attempt connecting two peers.
383 static unsigned long long connect_attempts;
386 * Timeout to let all GET requests happen.
388 static struct GNUNET_TIME_Relative all_get_timeout;
393 static struct GNUNET_TIME_Relative get_timeout;
396 * Time to allow for GET requests to be sent to service.
398 static struct GNUNET_TIME_Relative get_delay;
401 * Time to allow for PUT requests to be sent to service.
403 static struct GNUNET_TIME_Relative put_delay;
406 * Delay between sending find peer requests (if
407 * handled by the driver, no effect if sent by service).
409 static struct GNUNET_TIME_Relative find_peer_delay;
412 * Time between find peer requests
413 * (find_peer_delay / max_outstanding_find_peer)
415 static struct GNUNET_TIME_Relative find_peer_offset;
418 * How many seconds to allow each peer to start.
420 static struct GNUNET_TIME_Relative seconds_per_peer_start;
423 * At what time did we start the connection process.
425 static struct GNUNET_TIME_Absolute connect_start_time;
428 * What was the last time we updated connection/second information.
430 static struct GNUNET_TIME_Absolute connect_last_time;
433 * Boolean value, should the driver issue find peer requests
434 * (GNUNET_YES) or should it be left to the service (GNUNET_NO)
436 static unsigned int do_find_peer;
440 * Are we currently trying to connect two peers repeatedly?
442 static unsigned int repeat_connect_mode;
445 * Task for repeating connects.
447 GNUNET_SCHEDULER_TaskIdentifier repeat_connect_task;
449 struct GNUNET_TESTING_Daemon *repeat_connect_peer1;
450 struct GNUNET_TESTING_Daemon *repeat_connect_peer2;
454 * Boolean value, should replication be done by the dht
455 * service (GNUNET_YES) or by the driver (GNUNET_NO)
457 static unsigned int in_dht_replication;
460 * Size of test data to insert/retrieve during testing.
462 static unsigned long long test_data_size = DEFAULT_TEST_DATA_SIZE;
465 * Maximum number of concurrent connections to peers.
467 static unsigned long long max_outstanding_connections;
470 * Maximum number of concurrent ssh instances to peers.
472 static unsigned long long max_concurrent_ssh;
475 * Maximum number of concurrent PUT requests.
477 static unsigned long long max_outstanding_puts = DEFAULT_MAX_OUTSTANDING_PUTS;
480 * Maximum number of concurrent GET requests.
482 static unsigned long long max_outstanding_gets = DEFAULT_MAX_OUTSTANDING_GETS;
485 * Number of nodes issuing malicious GET messages.
487 static unsigned long long malicious_getters;
490 * Maximum number of concurrent find peer messages being sent.
492 static unsigned long long max_outstanding_find_peers;
495 * Number of nodes issuing malicious PUT messages.
497 static unsigned long long malicious_putters;
500 * Time (in seconds) to delay between rounds.
502 static unsigned long long round_delay;
505 * How many malicious droppers to seed in the network.
507 static unsigned long long malicious_droppers;
510 * Bloom filter to restrict malicious nodes chosen.
512 struct GNUNET_CONTAINER_BloomFilter *malicious_bloom;
515 * Whether malicious droppers should be chosen based on proximity to a key.
517 static int malicious_sybil;
520 * Target for the malicious sybil nodes (choose the closest to this key).
522 static GNUNET_HashCode sybil_target;
525 * How often to send malicious GET messages.
527 static struct GNUNET_TIME_Relative malicious_get_frequency;
530 * How often to send malicious PUT messages.
532 static struct GNUNET_TIME_Relative malicious_put_frequency;
535 * How long to send find peer requests.
537 static unsigned long long settle_time;
540 * Handle to the dhtlog service.
542 static struct GNUNET_DHTLOG_Handle *dhtlog_handle;
545 * Replication value for GET requests.
547 static unsigned long long get_replication;
550 * Replication value for PUT requests.
552 static unsigned long long put_replication;
555 * If GNUNET_YES, insert data at the same peers every time.
556 * Otherwise, choose a new random peer to insert at each time.
558 static unsigned int replicate_same;
561 * If GNUNET_YES, issue GET requests at the same peers every time.
562 * Otherwise, choose a new random peer/data combination to search
565 static unsigned int get_from_same;
568 * Should malicious peers be set after allowing for settle time?
569 * Default is to set them malicious after initial connection setup.
571 static unsigned int malicious_after_settle;
574 * Number of rounds for testing (PUTS + GETS)
576 static unsigned long long total_rounds;
579 * Target number of connections (will stop sending find peer
580 * messages when this number is exceeded)
582 static unsigned long long target_total_connections;
585 * Number of rounds already run
587 static unsigned int rounds_finished;
590 * Number of rounds of churn to read from the file (first line, should be a single number).
592 static unsigned int churn_rounds;
595 * Current round we are in for churn, tells us how many peers to connect/disconnect.
597 static unsigned int current_churn_round;
600 * Number of times to churn per round
602 static unsigned long long churns_per_round;
605 * Array of churn values.
607 static unsigned int *churn_array;
610 * Hash map of stats contexts.
612 static struct GNUNET_CONTAINER_MultiHashMap *stats_map;
615 * LL of malicious settings.
617 struct MaliciousContext *all_malicious;
620 * List of GETS to perform
622 struct TestGetContext *all_gets;
625 * List of PUTS to perform
627 struct TestPutContext *all_puts;
630 * Directory to store temporary data in, defined in config file
632 static char *test_directory;
635 * Variable used to store the number of connections we should wait for.
637 static unsigned int expected_connections;
640 * Variable used to keep track of how many peers aren't yet started.
642 static unsigned long long peers_left;
645 * Handle to the set of all peers run for this test.
647 static struct GNUNET_TESTING_PeerGroup *pg;
651 * Global config handle.
653 static const struct GNUNET_CONFIGURATION_Handle *config;
656 * Total number of peers to run, set based on config file.
658 static unsigned long long num_peers;
661 * Total number of items to insert.
663 static unsigned long long num_puts;
666 * How many puts do we currently have in flight?
668 static unsigned long long outstanding_puts;
671 * How many puts are done?
673 static unsigned long long puts_completed;
676 * Total number of items to attempt to get.
678 static unsigned long long num_gets;
681 * How many puts do we currently have in flight?
683 static unsigned long long outstanding_gets;
686 * How many gets are done?
688 static unsigned long long gets_completed;
691 * How many gets failed?
693 static unsigned long long gets_failed;
696 * How many malicious control messages do
697 * we currently have in flight?
699 static unsigned long long outstanding_malicious;
702 * How many set malicious peers are done?
704 static unsigned long long malicious_completed;
707 * Global used to count how many connections we have currently
708 * been notified about (how many times has topology_callback been called
711 static unsigned int total_connections;
714 * Previous connections, for counting new connections during some duration.
716 static unsigned int previous_connections;
719 * Global used to count how many failed connections we have
720 * been notified about (how many times has topology_callback
721 * been called with failure?)
723 static unsigned int failed_connections;
726 * If GNUNET_YES, only log PUT/GET round data to mysql, otherwise
727 * log everything (including each dht service logging).
729 static unsigned int dhtlog_minimal;
731 /* Task handle to use to schedule shutdown if something goes wrong */
732 GNUNET_SCHEDULER_TaskIdentifier die_task;
734 static char *blacklist_transports;
736 static enum GNUNET_TESTING_Topology topology;
738 static enum GNUNET_TESTING_Topology blacklist_topology = GNUNET_TESTING_TOPOLOGY_NONE; /* Don't do any blacklisting */
740 static enum GNUNET_TESTING_Topology connect_topology = GNUNET_TESTING_TOPOLOGY_NONE; /* NONE actually means connect all allowed peers */
742 static enum GNUNET_TESTING_TopologyOption connect_topology_option = GNUNET_TESTING_TOPOLOGY_OPTION_ALL;
744 static double connect_topology_option_modifier = 0.0;
746 static struct ProgressMeter *hostkey_meter;
748 static struct ProgressMeter *peer_start_meter;
750 static struct ProgressMeter *peer_connect_meter;
752 static struct ProgressMeter *put_meter;
754 static struct ProgressMeter *get_meter;
756 static GNUNET_HashCode *known_keys;
758 /* Global return value (0 for success, anything else for failure) */
762 * Create a meter to keep track of the progress of some task.
764 * @param total the total number of items to complete
765 * @param start_string a string to prefix the meter with (if printing)
766 * @param print GNUNET_YES to print the meter, GNUNET_NO to count
769 * @return the progress meter
771 static struct ProgressMeter *
772 create_meter(unsigned int total, char * start_string, int print)
774 struct ProgressMeter *ret;
775 ret = GNUNET_malloc(sizeof(struct ProgressMeter));
778 ret->modnum = total / 4;
779 ret->dotnum = (total / 50) + 1;
780 if (start_string != NULL)
781 ret->startup_string = GNUNET_strdup(start_string);
783 ret->startup_string = GNUNET_strdup("");
789 * Update progress meter (increment by one).
791 * @param meter the meter to update and print info for
793 * @return GNUNET_YES if called the total requested,
794 * GNUNET_NO if more items expected
797 update_meter(struct ProgressMeter *meter)
799 if (meter->print == GNUNET_YES)
801 if (meter->completed % meter->modnum == 0)
803 if (meter->completed == 0)
805 fprintf(stdout, "%sProgress: [0%%", meter->startup_string);
808 fprintf(stdout, "%d%%", (int)(((float)meter->completed / meter->total) * 100));
810 else if (meter->completed % meter->dotnum == 0)
811 fprintf(stdout, ".");
813 if (meter->completed + 1 == meter->total)
814 fprintf(stdout, "%d%%]\n", 100);
819 if (meter->completed == meter->total)
825 * Reset progress meter.
827 * @param meter the meter to reset
829 * @return GNUNET_YES if meter reset,
830 * GNUNET_SYSERR on error
833 reset_meter(struct ProgressMeter *meter)
836 return GNUNET_SYSERR;
838 meter->completed = 0;
843 * Release resources for meter
845 * @param meter the meter to free
848 free_meter(struct ProgressMeter *meter)
850 GNUNET_free_non_null (meter->startup_string);
855 * Check whether peers successfully shut down.
858 shutdown_callback (void *cls,
869 * Task to release DHT handles for PUT
872 put_disconnect_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
874 struct TestPutContext *test_put = cls;
875 test_put->disconnect_task = GNUNET_SCHEDULER_NO_TASK;
876 GNUNET_DHT_disconnect(test_put->dht_handle);
877 test_put->dht_handle = NULL;
878 if (replicate_same == GNUNET_NO)
879 test_put->daemon = GNUNET_TESTING_daemon_get(pg, GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers));
883 * Function scheduled to be run on the successful completion of this
887 finish_testing (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
889 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Ending test normally!\n", (char *)cls);
890 GNUNET_assert (pg != NULL);
891 struct TestPutContext *test_put = all_puts;
892 struct TestGetContext *test_get = all_gets;
894 while (test_put != NULL)
896 if (test_put->disconnect_task != GNUNET_SCHEDULER_NO_TASK)
897 GNUNET_SCHEDULER_cancel(test_put->disconnect_task);
898 if (test_put->dht_handle != NULL)
899 GNUNET_DHT_disconnect(test_put->dht_handle);
900 test_put = test_put->next;
903 while (test_get != NULL)
905 if (test_get->disconnect_task != GNUNET_SCHEDULER_NO_TASK)
906 GNUNET_SCHEDULER_cancel(test_get->disconnect_task);
907 if (test_get->get_handle != NULL)
908 GNUNET_DHT_get_stop(test_get->get_handle);
909 if (test_get->dht_handle != NULL)
910 GNUNET_DHT_disconnect(test_get->dht_handle);
911 test_get = test_get->next;
914 GNUNET_TESTING_daemons_stop (pg, DEFAULT_TIMEOUT, &shutdown_callback, NULL);
916 if (dhtlog_handle != NULL)
918 fprintf(stderr, "Update trial endtime\n");
919 dhtlog_handle->update_trial (gets_completed);
920 GNUNET_DHTLOG_disconnect(dhtlog_handle);
921 dhtlog_handle = NULL;
924 if (hostkey_meter != NULL)
925 free_meter(hostkey_meter);
926 if (peer_start_meter != NULL)
927 free_meter(peer_start_meter);
928 if (peer_connect_meter != NULL)
929 free_meter(peer_connect_meter);
930 if (put_meter != NULL)
931 free_meter(put_meter);
932 if (get_meter != NULL)
933 free_meter(get_meter);
939 * Callback for iterating over all the peer connections of a peer group.
942 log_topology_cb (void *cls,
943 const struct GNUNET_PeerIdentity *first,
944 const struct GNUNET_PeerIdentity *second,
947 struct TopologyIteratorContext *topo_ctx = cls;
948 if ((first != NULL) && (second != NULL))
950 if ((topo_ctx->peers_seen != NULL) && (GNUNET_NO == GNUNET_CONTAINER_multihashmap_contains(topo_ctx->peers_seen, &first->hashPubKey)))
952 GNUNET_CONTAINER_multihashmap_put(topo_ctx->peers_seen, &first->hashPubKey, NULL, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
953 topo_ctx->total_peers++;
955 topo_ctx->total_connections++;
956 if ((GNUNET_NO == dhtlog_minimal) && (dhtlog_handle != NULL))
957 dhtlog_handle->insert_extended_topology(first, second);
961 GNUNET_assert(dhtlog_handle != NULL);
962 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);
963 dhtlog_handle->update_topology(topo_ctx->total_connections);
964 if (topo_ctx->cont != NULL)
965 GNUNET_SCHEDULER_add_now (topo_ctx->cont, topo_ctx->cls);
966 if (topo_ctx->peers_seen != NULL)
967 GNUNET_CONTAINER_multihashmap_destroy(topo_ctx->peers_seen);
968 GNUNET_free(topo_ctx);
973 * Iterator over hash map entries.
975 * @param cls closure - always NULL
976 * @param key current key code
977 * @param value value in the hash map, a stats context
978 * @return GNUNET_YES if we should continue to
982 static int stats_iterate (void *cls,
983 const GNUNET_HashCode * key,
986 struct StatisticsIteratorContext *stats_ctx;
990 dhtlog_handle->insert_stat(stats_ctx->peer, stats_ctx->stat_routes, stats_ctx->stat_route_forwards, stats_ctx->stat_results,
991 stats_ctx->stat_results_to_client, stats_ctx->stat_result_forwards, stats_ctx->stat_gets,
992 stats_ctx->stat_puts, stats_ctx->stat_puts_inserted, stats_ctx->stat_find_peer,
993 stats_ctx->stat_find_peer_start, stats_ctx->stat_get_start, stats_ctx->stat_put_start,
994 stats_ctx->stat_find_peer_reply, stats_ctx->stat_get_reply, stats_ctx->stat_find_peer_answer,
995 stats_ctx->stat_get_response_start);
996 GNUNET_free(stats_ctx);
1001 stats_finished (void *cls, int result)
1003 fprintf(stderr, "Finished getting all peers statistics, iterating!\n");
1004 GNUNET_CONTAINER_multihashmap_iterate(stats_map, &stats_iterate, NULL);
1005 GNUNET_CONTAINER_multihashmap_destroy(stats_map);
1006 GNUNET_SCHEDULER_add_now (&finish_testing, NULL);
1010 * Callback function to process statistic values.
1012 * @param cls closure
1013 * @param peer the peer the statistics belong to
1014 * @param subsystem name of subsystem that created the statistic
1015 * @param name the name of the datum
1016 * @param value the current value
1017 * @param is_persistent GNUNET_YES if the value is persistent, GNUNET_NO if not
1018 * @return GNUNET_OK to continue, GNUNET_SYSERR to abort iteration
1020 static int stats_handle (void *cls,
1021 const struct GNUNET_PeerIdentity *peer,
1022 const char *subsystem,
1027 struct StatisticsIteratorContext *stats_ctx;
1029 if (dhtlog_handle != NULL)
1030 dhtlog_handle->add_generic_stat(peer, name, subsystem, value);
1031 if (GNUNET_CONTAINER_multihashmap_contains(stats_map, &peer->hashPubKey))
1033 stats_ctx = GNUNET_CONTAINER_multihashmap_get(stats_map, &peer->hashPubKey);
1037 stats_ctx = GNUNET_malloc(sizeof(struct StatisticsIteratorContext));
1038 stats_ctx->peer = peer;
1039 GNUNET_CONTAINER_multihashmap_put(stats_map, &peer->hashPubKey, stats_ctx, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
1041 GNUNET_assert(stats_ctx != NULL);
1043 if (strcmp(name, STAT_ROUTES) == 0)
1044 stats_ctx->stat_routes = value;
1045 else if (strcmp(name, STAT_ROUTE_FORWARDS) == 0)
1046 stats_ctx->stat_route_forwards = value;
1047 else if (strcmp(name, STAT_RESULTS) == 0)
1048 stats_ctx->stat_results = value;
1049 else if (strcmp(name, STAT_RESULTS_TO_CLIENT) == 0)
1050 stats_ctx->stat_results_to_client = value;
1051 else if (strcmp(name, STAT_RESULT_FORWARDS) == 0)
1052 stats_ctx->stat_result_forwards = value;
1053 else if (strcmp(name, STAT_GETS) == 0)
1054 stats_ctx->stat_gets = value;
1055 else if (strcmp(name, STAT_PUTS) == 0)
1056 stats_ctx->stat_puts = value;
1057 else if (strcmp(name, STAT_PUTS_INSERTED) == 0)
1058 stats_ctx->stat_puts_inserted = value;
1059 else if (strcmp(name, STAT_FIND_PEER) == 0)
1060 stats_ctx->stat_find_peer = value;
1061 else if (strcmp(name, STAT_FIND_PEER_START) == 0)
1062 stats_ctx->stat_find_peer_start = value;
1063 else if (strcmp(name, STAT_GET_START) == 0)
1064 stats_ctx->stat_get_start = value;
1065 else if (strcmp(name, STAT_PUT_START) == 0)
1066 stats_ctx->stat_put_start = value;
1067 else if (strcmp(name, STAT_FIND_PEER_REPLY) == 0)
1068 stats_ctx->stat_find_peer_reply = value;
1069 else if (strcmp(name, STAT_GET_REPLY) == 0)
1070 stats_ctx->stat_get_reply = value;
1071 else if (strcmp(name, STAT_FIND_PEER_ANSWER) == 0)
1072 stats_ctx->stat_find_peer_answer = value;
1073 else if (strcmp(name, STAT_GET_RESPONSE_START) == 0)
1074 stats_ctx->stat_get_response_start = value;
1080 * Connect to statistics service for each peer and get the appropriate
1081 * dht statistics for safe keeping.
1084 log_dht_statistics (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1086 stats_map = GNUNET_CONTAINER_multihashmap_create(num_peers);
1087 fprintf(stderr, "Starting statistics logging\n");
1088 GNUNET_TESTING_get_statistics(pg, &stats_finished, &stats_handle, NULL);
1093 * Connect to all peers in the peer group and iterate over their
1097 capture_current_topology (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1099 struct TopologyIteratorContext *topo_ctx = cls;
1100 dhtlog_handle->insert_topology(0);
1101 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Called capture_current_topology\n");
1102 GNUNET_TESTING_get_topology (pg, &log_topology_cb, topo_ctx);
1107 * Check if the get_handle is being used, if so stop the request. Either
1108 * way, schedule the end_badly_cont function which actually shuts down the
1112 end_badly (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1114 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Failing test with error: `%s'!\n", (char *)cls);
1116 struct TestPutContext *test_put = all_puts;
1117 struct TestGetContext *test_get = all_gets;
1119 while (test_put != NULL)
1121 if (test_put->disconnect_task != GNUNET_SCHEDULER_NO_TASK)
1122 GNUNET_SCHEDULER_cancel(test_put->disconnect_task);
1123 if (test_put->dht_handle != NULL)
1124 GNUNET_DHT_disconnect(test_put->dht_handle);
1125 test_put = test_put->next;
1128 while (test_get != NULL)
1130 if (test_get->disconnect_task != GNUNET_SCHEDULER_NO_TASK)
1131 GNUNET_SCHEDULER_cancel(test_get->disconnect_task);
1132 if (test_get->get_handle != NULL)
1133 GNUNET_DHT_get_stop(test_get->get_handle);
1134 if (test_get->dht_handle != NULL)
1135 GNUNET_DHT_disconnect(test_get->dht_handle);
1136 test_get = test_get->next;
1139 GNUNET_TESTING_daemons_stop (pg, DEFAULT_TIMEOUT, &shutdown_callback, NULL);
1141 if (dhtlog_handle != NULL)
1143 fprintf(stderr, "Update trial endtime\n");
1144 dhtlog_handle->update_trial (gets_completed);
1145 GNUNET_DHTLOG_disconnect(dhtlog_handle);
1146 dhtlog_handle = NULL;
1149 if (hostkey_meter != NULL)
1150 free_meter(hostkey_meter);
1151 if (peer_start_meter != NULL)
1152 free_meter(peer_start_meter);
1153 if (peer_connect_meter != NULL)
1154 free_meter(peer_connect_meter);
1155 if (put_meter != NULL)
1156 free_meter(put_meter);
1157 if (get_meter != NULL)
1158 free_meter(get_meter);
1164 * Forward declaration.
1167 do_put (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc);
1170 * Forward declaration.
1173 do_get (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc);
1176 * Iterator over hash map entries.
1178 * @param cls closure
1179 * @param key current key code
1180 * @param value value in the hash map
1181 * @return GNUNET_YES if we should continue to
1185 static int remove_peer_count (void *cls,
1186 const GNUNET_HashCode * key,
1189 struct FindPeerContext *find_peer_ctx = cls;
1190 struct PeerCount *peer_count = value;
1191 GNUNET_CONTAINER_heap_remove_node(find_peer_ctx->peer_min_heap, peer_count->heap_node);
1192 GNUNET_free(peer_count);
1198 * Connect to all peers in the peer group and iterate over their
1202 count_new_peers (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1204 struct FindPeerContext *find_peer_context = cls;
1205 find_peer_context->previous_peers = find_peer_context->current_peers;
1206 find_peer_context->current_peers = 0;
1207 GNUNET_TESTING_get_topology (pg, find_peer_context->count_peers_cb, find_peer_context);
1211 decrement_find_peers (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1213 struct TestFindPeer *test_find_peer = cls;
1214 GNUNET_assert(test_find_peer->find_peer_context->outstanding > 0);
1215 test_find_peer->find_peer_context->outstanding--;
1216 test_find_peer->find_peer_context->total--;
1217 if (0 == test_find_peer->find_peer_context->total)
1219 GNUNET_SCHEDULER_add_now(&count_new_peers, test_find_peer->find_peer_context);
1221 GNUNET_free(test_find_peer);
1225 * A find peer request has been sent to the server, now we will schedule a task
1226 * to wait the appropriate time to allow the request to go out and back.
1228 * @param cls closure - a TestFindPeer struct
1229 * @param tc context the task is being called with
1232 handle_find_peer_sent (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1234 struct TestFindPeer *test_find_peer = cls;
1236 GNUNET_DHT_disconnect(test_find_peer->dht_handle);
1237 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_divide(find_peer_delay, 2), &decrement_find_peers, test_find_peer);
1242 send_find_peer_request (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1244 struct TestFindPeer *test_find_peer = cls;
1246 if (test_find_peer->find_peer_context->outstanding > max_outstanding_find_peers)
1248 GNUNET_SCHEDULER_add_delayed(find_peer_offset, &send_find_peer_request, test_find_peer);
1252 test_find_peer->find_peer_context->outstanding++;
1253 if (GNUNET_TIME_absolute_get_remaining(test_find_peer->find_peer_context->endtime).rel_value == 0)
1255 GNUNET_SCHEDULER_add_now(&decrement_find_peers, test_find_peer);
1259 test_find_peer->dht_handle = GNUNET_DHT_connect(test_find_peer->daemon->cfg, 1);
1260 GNUNET_assert(test_find_peer->dht_handle != NULL);
1261 GNUNET_DHT_find_peers (test_find_peer->dht_handle,
1262 &handle_find_peer_sent, test_find_peer);
1267 * Add a connection to the find_peer_context given. This may
1268 * be complete overkill, but allows us to choose the peers with
1269 * the least connections to initiate find peer requests from.
1271 static void add_new_connection(struct FindPeerContext *find_peer_context,
1272 const struct GNUNET_PeerIdentity *first,
1273 const struct GNUNET_PeerIdentity *second)
1275 struct PeerCount *first_count;
1276 struct PeerCount *second_count;
1278 if (GNUNET_CONTAINER_multihashmap_contains(find_peer_context->peer_hash, &first->hashPubKey))
1280 first_count = GNUNET_CONTAINER_multihashmap_get(find_peer_context->peer_hash, &first->hashPubKey);
1281 GNUNET_assert(first_count != NULL);
1282 first_count->count++;
1283 GNUNET_CONTAINER_heap_update_cost(find_peer_context->peer_min_heap, first_count->heap_node, first_count->count);
1287 first_count = GNUNET_malloc(sizeof(struct PeerCount));
1288 first_count->count = 1;
1289 memcpy(&first_count->peer_id, first, sizeof(struct GNUNET_PeerIdentity));
1290 first_count->heap_node = GNUNET_CONTAINER_heap_insert(find_peer_context->peer_min_heap, first_count, first_count->count);
1291 GNUNET_CONTAINER_multihashmap_put(find_peer_context->peer_hash, &first->hashPubKey, first_count, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
1294 if (GNUNET_CONTAINER_multihashmap_contains(find_peer_context->peer_hash, &second->hashPubKey))
1296 second_count = GNUNET_CONTAINER_multihashmap_get(find_peer_context->peer_hash, &second->hashPubKey);
1297 GNUNET_assert(second_count != NULL);
1298 second_count->count++;
1299 GNUNET_CONTAINER_heap_update_cost(find_peer_context->peer_min_heap, second_count->heap_node, second_count->count);
1303 second_count = GNUNET_malloc(sizeof(struct PeerCount));
1304 second_count->count = 1;
1305 memcpy(&second_count->peer_id, second, sizeof(struct GNUNET_PeerIdentity));
1306 second_count->heap_node = GNUNET_CONTAINER_heap_insert(find_peer_context->peer_min_heap, second_count, second_count->count);
1307 GNUNET_CONTAINER_multihashmap_put(find_peer_context->peer_hash, &second->hashPubKey, second_count, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
1313 * Iterate over min heap of connections per peer. For any
1314 * peer that has 0 connections, attempt to connect them to
1317 * @param cls closure a struct FindPeerContext
1318 * @param node internal node of the heap
1319 * @param element value stored, a struct PeerCount
1320 * @param cost cost associated with the node
1321 * @return GNUNET_YES if we should continue to iterate,
1324 static int iterate_min_heap_peers (void *cls,
1325 struct GNUNET_CONTAINER_HeapNode *node,
1327 GNUNET_CONTAINER_HeapCostType cost)
1329 struct FindPeerContext *find_peer_context = cls;
1330 struct PeerCount *peer_count = element;
1331 struct GNUNET_TESTING_Daemon *d1;
1332 struct GNUNET_TESTING_Daemon *d2;
1333 struct GNUNET_TIME_Relative timeout;
1336 d1 = GNUNET_TESTING_daemon_get_by_id (pg, &peer_count->peer_id);
1337 GNUNET_assert(d1 != NULL);
1339 while ((d2 == d1) || (GNUNET_YES != GNUNET_TESTING_daemon_running(d2)))
1341 d2 = GNUNET_TESTING_daemon_get(pg, GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers));
1342 GNUNET_assert(d2 != NULL);
1345 /** Just try to connect the peers, don't worry about callbacks, etc. **/
1346 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);
1347 timeout = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, DEFAULT_CONNECT_TIMEOUT);
1348 if (GNUNET_TIME_relative_to_absolute(timeout).abs_value > find_peer_context->endtime.abs_value)
1350 timeout = GNUNET_TIME_absolute_get_remaining(find_peer_context->endtime);
1352 GNUNET_TESTING_daemons_connect(d1, d2, timeout, DEFAULT_RECONNECT_ATTEMPTS, NULL, NULL);
1354 if (GNUNET_TIME_absolute_get_remaining(find_peer_context->endtime).rel_value > 0)
1361 * Forward declaration.
1364 schedule_churn_find_peer_requests (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc);
1367 * Callback for iterating over all the peer connections of a peer group.
1368 * Used after we have churned on some peers to find which ones have zero
1369 * connections so we can make them issue find peer requests.
1372 count_peers_churn_cb (void *cls,
1373 const struct GNUNET_PeerIdentity *first,
1374 const struct GNUNET_PeerIdentity *second,
1377 struct FindPeerContext *find_peer_context = cls;
1378 struct TopologyIteratorContext *topo_ctx;
1379 struct PeerCount *peer_count;
1381 if ((first != NULL) && (second != NULL))
1383 add_new_connection(find_peer_context, first, second);
1384 find_peer_context->current_peers++;
1388 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Peer count finished (%u connections)\n",
1389 find_peer_context->current_peers);
1390 peer_count = GNUNET_CONTAINER_heap_peek(find_peer_context->peer_min_heap);
1391 GNUNET_assert(peer_count != NULL);
1392 /* 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. */
1393 /* NO they won't, because we have disabled peerinfo writing to disk (remember?) so we WILL have to give them new connections */
1394 /* Best course of action: have DHT automatically try to add peers from peerinfo on startup. This way IF peerinfo writes to file
1395 * then some peers will end up connected.
1397 * Also, find any peers that have zero connections here and set up a task to choose at random another peer in the network to
1398 * 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
1399 * until they get a peer.
1401 /* However, they won't automatically be connected to any of their previous peers... How can we handle that? */
1402 /* So now we have choices: do we want them to come back with all their connections? Probably not, but it solves this mess. */
1404 /* Second problem, which is still a problem, is that a FIND_PEER request won't work when a peer has no connections */
1407 * Okay, so here's how this *should* work now.
1409 * 1. We check the min heap for any peers that have 0 connections.
1410 * a. If any are found, we iterate over the heap and just randomly
1411 * choose another peer and ask testing to please connect the two.
1412 * This takes care of the case that a peer just randomly joins the
1413 * network. However, if there are strict topology restrictions
1414 * (imagine a ring) choosing randomly most likely won't help.
1415 * We make sure the connection attempt doesn't take longer than
1416 * the total timeout, but don't care too much about the result.
1417 * b. After that, we still schedule the find peer requests (concurrently
1418 * with the connect attempts most likely). This handles the case
1419 * that the DHT iterates over peerinfo and just needs to try to send
1420 * a message to get connected. This should handle the case that the
1421 * topology is very strict.
1423 * 2. If all peers have > 0 connections, we still send find peer requests
1424 * as long as possible (until timeout is reached) to help out those
1425 * peers that were newly churned and need more connections. This is because
1426 * once all new peers have established a single connection, they won't be
1429 * 3. Once we reach the timeout, we can do no more. We must schedule the
1430 * next iteration of get requests regardless of connections that peers
1431 * may or may not have.
1433 * Caveat: it would be nice to get peers to take data offline with them and
1434 * come back with it (or not) based on the testing framework. The
1435 * same goes for remembering previous connections, but putting either
1436 * into the general testing churn options seems like overkill because
1437 * these are very specialized cases.
1439 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);
1440 if ((peer_count->count == 0) && (GNUNET_TIME_absolute_get_remaining(find_peer_context->endtime).rel_value > 0))
1442 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Found peer with no connections, will choose some peer(s) at random to connect to!\n");
1443 GNUNET_CONTAINER_heap_iterate (find_peer_context->peer_min_heap, &iterate_min_heap_peers, find_peer_context);
1444 GNUNET_SCHEDULER_add_now(&schedule_churn_find_peer_requests, find_peer_context);
1446 else if ((GNUNET_TIME_absolute_get_remaining(find_peer_context->endtime).rel_value > 0) && (find_peer_context->last_sent != 0))
1448 GNUNET_SCHEDULER_add_now(&schedule_churn_find_peer_requests, find_peer_context);
1452 GNUNET_CONTAINER_multihashmap_iterate(find_peer_context->peer_hash, &remove_peer_count, find_peer_context);
1453 GNUNET_CONTAINER_multihashmap_destroy(find_peer_context->peer_hash);
1454 GNUNET_CONTAINER_heap_destroy(find_peer_context->peer_min_heap);
1455 GNUNET_free(find_peer_context);
1456 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Churn round %u of %llu finished, scheduling next GET round.\n", current_churn_round, churn_rounds);
1457 if (dhtlog_handle != NULL)
1459 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
1460 topo_ctx->cont = &do_get;
1461 topo_ctx->cls = all_gets;
1462 topo_ctx->timeout = DEFAULT_GET_TIMEOUT;
1463 topo_ctx->peers_seen = GNUNET_CONTAINER_multihashmap_create(num_peers);
1464 die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_add(GNUNET_TIME_relative_add(DEFAULT_GET_TIMEOUT, all_get_timeout), DEFAULT_TOPOLOGY_CAPTURE_TIMEOUT),
1465 &end_badly, "from do gets (count_peers_churn_cb)");
1466 GNUNET_SCHEDULER_add_now(&capture_current_topology, topo_ctx);
1470 die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_add(GNUNET_TIME_relative_add(DEFAULT_GET_TIMEOUT, all_get_timeout), DEFAULT_TOPOLOGY_CAPTURE_TIMEOUT),
1471 &end_badly, "from do gets (count_peers_churn_cb)");
1472 GNUNET_SCHEDULER_add_now(&do_get, all_gets);
1479 * Set up a single find peer request for each peer in the topology. Do this
1480 * until the settle time is over, limited by the number of outstanding requests
1481 * and the time allowed for each one!
1484 schedule_churn_find_peer_requests (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1486 struct FindPeerContext *find_peer_ctx = cls;
1487 struct TestFindPeer *test_find_peer;
1488 struct PeerCount *peer_count;
1491 if (find_peer_ctx->previous_peers == 0) /* First time, go slowly */
1492 find_peer_ctx->total = 1;
1493 else if (find_peer_ctx->current_peers - find_peer_ctx->previous_peers < MIN_FIND_PEER_CUTOFF)
1494 find_peer_ctx->total = find_peer_ctx->total / 2;
1495 else if (find_peer_ctx->current_peers - find_peer_ctx->previous_peers > MAX_FIND_PEER_CUTOFF) /* Found LOTS of peers, still go slowly */
1496 find_peer_ctx->total = find_peer_ctx->last_sent - (find_peer_ctx->last_sent / 4);
1498 find_peer_ctx->total = find_peer_ctx->last_sent * 4;
1500 if (find_peer_ctx->total > max_outstanding_find_peers)
1501 find_peer_ctx->total = max_outstanding_find_peers;
1503 find_peer_ctx->last_sent = find_peer_ctx->total;
1504 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Sending %u find peer messages (after churn)\n", find_peer_ctx->total);
1506 if (find_peer_ctx->total > 0)
1507 find_peer_offset = GNUNET_TIME_relative_divide(find_peer_delay, find_peer_ctx->total);
1510 find_peer_ctx->previous_peers = find_peer_ctx->current_peers;
1511 find_peer_ctx->current_peers = 0;
1512 GNUNET_TESTING_get_topology (pg, &count_peers_churn_cb, find_peer_ctx);
1516 for (i = 0; i < find_peer_ctx->total; i++)
1518 test_find_peer = GNUNET_malloc(sizeof(struct TestFindPeer));
1519 /* If we have sent requests, choose peers with a low number of connections to send requests from */
1520 peer_count = GNUNET_CONTAINER_heap_remove_root(find_peer_ctx->peer_min_heap);
1521 GNUNET_assert(peer_count != NULL);
1522 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Sending find peer request from peer with %u connections\n", peer_count->count);
1523 GNUNET_CONTAINER_multihashmap_remove(find_peer_ctx->peer_hash, &peer_count->peer_id.hashPubKey, peer_count);
1524 test_find_peer->daemon = GNUNET_TESTING_daemon_get_by_id(pg, &peer_count->peer_id);
1525 GNUNET_assert(test_find_peer->daemon != NULL);
1526 test_find_peer->find_peer_context = find_peer_ctx;
1527 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_multiply(find_peer_offset, i), &send_find_peer_request, test_find_peer);
1530 if ((find_peer_ctx->peer_hash == NULL) && (find_peer_ctx->peer_min_heap == NULL))
1532 find_peer_ctx->peer_hash = GNUNET_CONTAINER_multihashmap_create(num_peers);
1533 find_peer_ctx->peer_min_heap = GNUNET_CONTAINER_heap_create(GNUNET_CONTAINER_HEAP_ORDER_MIN);
1537 GNUNET_CONTAINER_multihashmap_iterate(find_peer_ctx->peer_hash, &remove_peer_count, find_peer_ctx);
1538 GNUNET_CONTAINER_multihashmap_destroy(find_peer_ctx->peer_hash);
1539 find_peer_ctx->peer_hash = GNUNET_CONTAINER_multihashmap_create(num_peers);
1542 GNUNET_assert(0 == GNUNET_CONTAINER_multihashmap_size(find_peer_ctx->peer_hash));
1543 GNUNET_assert(0 == GNUNET_CONTAINER_heap_get_size(find_peer_ctx->peer_min_heap));
1546 static void schedule_churn_get_topology (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1548 struct FindPeerContext *find_peer_context = cls;
1549 GNUNET_TESTING_get_topology (pg, &count_peers_churn_cb, find_peer_context);
1553 * Called when churning of the topology has finished.
1555 * @param cls closure unused
1556 * @param emsg NULL on success, or a printable error on failure
1558 static void churn_complete (void *cls, const char *emsg)
1560 struct FindPeerContext *find_peer_context = cls;
1561 struct PeerCount *peer_count;
1563 struct GNUNET_TESTING_Daemon *temp_daemon;
1564 struct TopologyIteratorContext *topo_ctx;
1565 struct GNUNET_TIME_Relative calc_timeout;
1570 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Ending test, churning of peers failed with error `%s'", emsg);
1571 GNUNET_SCHEDULER_add_now(&end_badly, (void *)emsg);
1576 * If we switched any peers on, we have to somehow force connect the new peer to
1577 * SOME bootstrap peer in the network. First schedule a task to find all peers
1578 * with no connections, then choose a random peer for each and connect them.
1580 if (find_peer_context != NULL)
1582 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "We have churned on some peers, so we must schedule find peer requests for them!\n");
1584 for (i = 0; i < num_peers; i ++)
1586 temp_daemon = GNUNET_TESTING_daemon_get(pg, i);
1587 if (GNUNET_YES == GNUNET_TESTING_daemon_running(temp_daemon))
1589 peer_count = GNUNET_malloc (sizeof(struct PeerCount));
1590 memcpy(&peer_count->peer_id, &temp_daemon->id, sizeof(struct GNUNET_PeerIdentity));
1591 GNUNET_assert(peer_count->count == 0);
1592 peer_count->heap_node = GNUNET_CONTAINER_heap_insert(find_peer_context->peer_min_heap, peer_count, peer_count->count);
1593 GNUNET_CONTAINER_multihashmap_put(find_peer_context->peer_hash, &temp_daemon->id.hashPubKey, peer_count, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
1597 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));
1598 GNUNET_SCHEDULER_add_delayed(DEFAULT_PEER_DISCONNECT_TIMEOUT, &schedule_churn_get_topology, find_peer_context);
1602 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");
1603 if (dhtlog_handle != NULL)
1605 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
1606 topo_ctx->cont = &do_get;
1607 topo_ctx->cls = all_gets;
1608 topo_ctx->timeout = DEFAULT_GET_TIMEOUT;
1609 topo_ctx->peers_seen = GNUNET_CONTAINER_multihashmap_create(num_peers);
1610 calc_timeout = GNUNET_TIME_relative_add(DEFAULT_GET_TIMEOUT, all_get_timeout);
1611 calc_timeout = GNUNET_TIME_relative_add(calc_timeout, DEFAULT_TOPOLOGY_CAPTURE_TIMEOUT);
1612 calc_timeout = GNUNET_TIME_relative_add(calc_timeout, DEFAULT_PEER_DISCONNECT_TIMEOUT);
1613 die_task = GNUNET_SCHEDULER_add_delayed (calc_timeout,
1614 &end_badly, "from do gets (churn_complete)");
1615 GNUNET_SCHEDULER_add_delayed(DEFAULT_PEER_DISCONNECT_TIMEOUT, &capture_current_topology, topo_ctx);
1616 dhtlog_handle->insert_round(DHT_ROUND_GET, rounds_finished);
1620 calc_timeout = GNUNET_TIME_relative_add(DEFAULT_GET_TIMEOUT, all_get_timeout);
1621 calc_timeout = GNUNET_TIME_relative_add(calc_timeout, DEFAULT_PEER_DISCONNECT_TIMEOUT);
1622 die_task = GNUNET_SCHEDULER_add_delayed (calc_timeout,
1623 &end_badly, "from do gets (churn_complete)");
1624 GNUNET_SCHEDULER_add_delayed(DEFAULT_PEER_DISCONNECT_TIMEOUT, &do_get, all_gets);
1630 * Decide how many peers to turn on or off in this round, make sure the
1631 * numbers actually make sense, then do so. This function sets in motion
1632 * churn, find peer requests for newly joined peers, and issuing get
1633 * requests once the new peers have done so.
1635 * @param cls closure (unused)
1636 * @param tc task context (unused)
1639 churn_peers (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1641 unsigned int count_running;
1642 unsigned int churn_up;
1643 unsigned int churn_down;
1644 struct GNUNET_TIME_Relative timeout;
1645 struct FindPeerContext *find_peer_context;
1647 churn_up = churn_down = 0;
1648 count_running = GNUNET_TESTING_daemons_running(pg);
1649 if (count_running > churn_array[current_churn_round])
1650 churn_down = count_running - churn_array[current_churn_round];
1651 else if (count_running < churn_array[current_churn_round])
1652 churn_up = churn_array[current_churn_round] - count_running;
1654 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Not churning any peers, topology unchanged.\n");
1656 if (churn_up > num_peers - count_running)
1658 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Churn file specified %u peers (up); only have %u!", churn_array[current_churn_round], num_peers);
1659 churn_up = num_peers - count_running;
1661 else if (churn_down > count_running)
1663 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Churn file specified %u peers (down); only have %u!", churn_array[current_churn_round], count_running);
1664 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "This will leave NO peers running (mistake in churn configuration?)!");
1665 churn_down = count_running;
1667 //timeout = GNUNET_TIME_relative_multiply(seconds_per_peer_start, churn_up > 0 ? churn_up : churn_down);
1668 //timeout = GNUNET_TIME_relative_multiply (seconds_per_peer_start, churn_up > 0 ? churn_up : churn_down);
1669 timeout = GNUNET_TIME_relative_multiply(DEFAULT_TIMEOUT, 2); /* FIXME: Lack of intelligent choice here */
1670 find_peer_context = NULL;
1671 if (churn_up > 0) /* Only need to do find peer requests if we turned new peers on */
1673 find_peer_context = GNUNET_malloc(sizeof(struct FindPeerContext));
1674 find_peer_context->count_peers_cb = &count_peers_churn_cb;
1675 find_peer_context->previous_peers = 0;
1676 find_peer_context->current_peers = 0;
1677 find_peer_context->endtime = GNUNET_TIME_relative_to_absolute(timeout);
1678 find_peer_context->peer_hash = GNUNET_CONTAINER_multihashmap_create(num_peers);
1679 find_peer_context->peer_min_heap = GNUNET_CONTAINER_heap_create(GNUNET_CONTAINER_HEAP_ORDER_MIN);
1681 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "churn_peers: want %u total, %u running, starting %u, stopping %u\n",
1682 churn_array[current_churn_round], count_running, churn_up, churn_down);
1683 GNUNET_TESTING_daemons_churn (pg, churn_down, churn_up, timeout, &churn_complete, find_peer_context);
1684 current_churn_round++;
1688 * Task to release DHT handle associated with GET request.
1691 get_stop_finished (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1693 struct TestGetContext *test_get = cls;
1694 struct TopologyIteratorContext *topo_ctx;
1696 /* The dht_handle may be null if this get was scheduled from a down peer */
1697 if (test_get->dht_handle != NULL)
1699 GNUNET_DHT_disconnect(test_get->dht_handle);
1700 outstanding_gets--; /* GET is really finished */
1701 test_get->dht_handle = NULL;
1704 /* Reset the uid (which item to search for) and the daemon (which peer to search from) for later get request iterations */
1705 if (get_from_same == GNUNET_NO)
1707 test_get->uid = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_puts);
1708 test_get->daemon = GNUNET_TESTING_daemon_get(pg, GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers));
1712 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "%d gets succeeded, %d gets failed!\n", gets_completed, gets_failed);
1714 update_meter(get_meter);
1715 if ((gets_completed + gets_failed == num_gets) && (outstanding_gets == 0))
1717 fprintf(stderr, "Canceling die task (get_stop_finished) %llu gets completed, %llu gets failed\n", gets_completed, gets_failed);
1718 if ((GNUNET_YES == dhtlog_minimal) && (NULL != dhtlog_handle))
1719 dhtlog_handle->insert_round_details(DHT_ROUND_GET, rounds_finished, num_gets, gets_completed);
1720 GNUNET_SCHEDULER_cancel(die_task);
1721 reset_meter(put_meter);
1722 reset_meter(get_meter);
1725 * 1) Testing is completely finished, call the topology iteration dealy and die
1726 * 2) Testing is not finished, churn the network and do gets again (current_churn_round < churn_rounds)
1727 * 3) Testing is not finished, reschedule all the PUTS *and* GETS again (num_rounds > 1)
1729 if (rounds_finished == total_rounds - 1) /* Everything is finished, end testing */
1731 if ((dhtlog_handle != NULL) && (GNUNET_NO == dhtlog_minimal))
1733 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
1734 topo_ctx->cont = &log_dht_statistics;
1735 topo_ctx->peers_seen = GNUNET_CONTAINER_multihashmap_create(num_peers);
1736 GNUNET_SCHEDULER_add_now(&capture_current_topology, topo_ctx);
1739 GNUNET_SCHEDULER_add_now (&finish_testing, NULL);
1741 else if (current_churn_round < churns_per_round * (rounds_finished + 1)) /* Do next round of churn */
1743 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);
1747 if (dhtlog_handle != NULL)
1748 dhtlog_handle->insert_round(DHT_ROUND_CHURN, rounds_finished);
1750 GNUNET_SCHEDULER_add_now(&churn_peers, NULL);
1752 else if (rounds_finished < total_rounds - 1) /* Start a new complete round */
1757 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Round %u of %llu finished, scheduling next round.\n", rounds_finished, total_rounds);
1759 /** We reset the peer daemon for puts and gets on each disconnect, so all we need to do is start another round! */
1760 if (GNUNET_YES == in_dht_replication) /* Replication done in DHT, don't redo puts! */
1762 if (dhtlog_handle != NULL)
1763 dhtlog_handle->insert_round(DHT_ROUND_GET, rounds_finished);
1765 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),
1766 &end_badly, "from do gets (next round)");
1767 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, round_delay), &do_get, all_gets);
1771 if (dhtlog_handle != NULL)
1772 dhtlog_handle->insert_round(DHT_ROUND_NORMAL, rounds_finished);
1773 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)),
1774 &end_badly, "from do puts");
1775 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, round_delay), &do_put, all_puts);
1782 * Task to release get handle.
1785 get_stop_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1787 struct TestGetContext *test_get = cls;
1789 if (tc->reason == GNUNET_SCHEDULER_REASON_TIMEOUT)
1791 GNUNET_assert(test_get->get_handle != NULL);
1792 GNUNET_DHT_get_stop(test_get->get_handle);
1793 test_get->get_handle = NULL;
1794 test_get->disconnect_task = GNUNET_SCHEDULER_NO_TASK;
1795 GNUNET_SCHEDULER_add_now (&get_stop_finished, test_get);
1799 * Iterator called if the GET request initiated returns a response.
1801 * @param cls closure
1802 * @param exp when will this value expire
1803 * @param key key of the result
1804 * @param get_path NULL-terminated array of pointers
1805 * to the peers on reverse GET path (or NULL if not recorded)
1806 * @param put_path NULL-terminated array of pointers
1807 * to the peers on the PUT path (or NULL if not recorded)
1808 * @param type type of the result
1809 * @param size number of bytes in data
1810 * @param data pointer to the result data
1813 get_result_iterator (void *cls,
1814 struct GNUNET_TIME_Absolute exp,
1815 const GNUNET_HashCode * key,
1816 const struct GNUNET_PeerIdentity * const *get_path,
1817 const struct GNUNET_PeerIdentity * const *put_path,
1818 enum GNUNET_BLOCK_Type type,
1822 struct TestGetContext *test_get = cls;
1824 if (test_get->succeeded == GNUNET_YES)
1825 return; /* Get has already been successful, probably ending now */
1827 if (0 != memcmp(&known_keys[test_get->uid], key, sizeof (GNUNET_HashCode))) /* || (0 != memcmp(original_data, data, sizeof(original_data))))*/
1830 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Key or data is not the same as was inserted!\n");
1835 test_get->succeeded = GNUNET_YES;
1838 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Received correct GET response!\n");
1840 GNUNET_SCHEDULER_cancel(test_get->disconnect_task);
1841 GNUNET_SCHEDULER_add_continuation(&get_stop_task, test_get, GNUNET_SCHEDULER_REASON_PREREQ_DONE);
1847 * Set up some data, and call API PUT function
1850 do_get (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1852 struct TestGetContext *test_get = cls;
1856 GNUNET_SCHEDULER_cancel(die_task);
1857 GNUNET_SCHEDULER_add_now(&finish_testing, NULL);
1860 if (test_get == NULL)
1861 return; /* End of the list */
1863 /* Set this here in case we are re-running gets */
1864 test_get->succeeded = GNUNET_NO;
1866 if (GNUNET_YES != GNUNET_TESTING_daemon_running(test_get->daemon)) /* If the peer has been churned off, don't try issuing request from it! */
1868 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Peer we should issue get request from is down, skipping.\n");
1870 GNUNET_SCHEDULER_add_now (&get_stop_finished, test_get);
1871 GNUNET_SCHEDULER_add_now (&do_get, test_get->next);
1875 /* Check if more gets are outstanding than should be */
1876 if (outstanding_gets > max_outstanding_gets)
1878 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MILLISECONDS, 200), &do_get, test_get);
1882 /* Connect to the first peer's DHT */
1883 test_get->dht_handle = GNUNET_DHT_connect(test_get->daemon->cfg, 10);
1884 GNUNET_assert(test_get->dht_handle != NULL);
1887 /* Insert the data at the first peer */
1888 test_get->get_handle = GNUNET_DHT_get_start(test_get->dht_handle,
1890 GNUNET_BLOCK_TYPE_TEST,
1891 &known_keys[test_get->uid],
1896 &get_result_iterator,
1900 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Starting get for uid %u from peer %s\n",
1902 test_get->daemon->shortname);
1904 test_get->disconnect_task = GNUNET_SCHEDULER_add_delayed(get_timeout, &get_stop_task, test_get);
1906 /* Schedule the next request in the linked list of get requests */
1907 GNUNET_SCHEDULER_add_now (&do_get, test_get->next);
1911 * Called when the PUT request has been transmitted to the DHT service.
1912 * Schedule the GET request for some time in the future.
1915 put_finished (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1917 struct TestPutContext *test_put = cls;
1918 struct TopologyIteratorContext *topo_ctx;
1922 if (tc->reason == GNUNET_SCHEDULER_REASON_TIMEOUT)
1923 fprintf(stderr, "PUT Request failed!\n");
1925 /* Reset the daemon (which peer to insert at) for later put request iterations */
1926 if (replicate_same == GNUNET_NO)
1927 test_put->daemon = GNUNET_TESTING_daemon_get(pg, GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers));
1929 GNUNET_SCHEDULER_cancel(test_put->disconnect_task);
1930 test_put->disconnect_task = GNUNET_SCHEDULER_add_now(&put_disconnect_task, test_put);
1931 if (GNUNET_YES == update_meter(put_meter))
1933 GNUNET_assert(outstanding_puts == 0);
1934 GNUNET_SCHEDULER_cancel (die_task);
1935 if ((dhtlog_handle != NULL) && (GNUNET_NO == dhtlog_minimal))
1937 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
1938 topo_ctx->cont = &do_get;
1939 topo_ctx->cls = all_gets;
1940 topo_ctx->timeout = DEFAULT_GET_TIMEOUT;
1941 topo_ctx->peers_seen = GNUNET_CONTAINER_multihashmap_create(num_peers);
1942 die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_add(GNUNET_TIME_relative_add(DEFAULT_GET_TIMEOUT, all_get_timeout), DEFAULT_TOPOLOGY_CAPTURE_TIMEOUT),
1943 &end_badly, "from do gets (put finished)");
1944 GNUNET_SCHEDULER_add_now(&capture_current_topology, topo_ctx);
1948 fprintf(stderr, "Scheduling die task (put finished)\n");
1949 die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_add(DEFAULT_GET_TIMEOUT, all_get_timeout),
1950 &end_badly, "from do gets (put finished)");
1951 GNUNET_SCHEDULER_add_delayed(DEFAULT_GET_TIMEOUT, &do_get, all_gets);
1958 * Set up some data, and call API PUT function
1961 do_put (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1963 struct TestPutContext *test_put = cls;
1964 char data[test_data_size]; /* Made up data to store */
1968 if (test_put == NULL)
1969 return; /* End of list */
1971 if (GNUNET_YES != GNUNET_TESTING_daemon_running(test_put->daemon)) /* If the peer has been churned off, don't try issuing request from it! */
1973 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Peer we should issue put request at is down, skipping.\n");
1974 update_meter(put_meter);
1975 GNUNET_SCHEDULER_add_now (&do_put, test_put->next);
1979 for (i = 0; i < sizeof(data); i++)
1981 memset(&data[i], GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, UINT32_MAX), 1);
1984 if (outstanding_puts > max_outstanding_puts)
1986 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MILLISECONDS, 200), &do_put, test_put);
1991 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Starting put for uid %u from peer %s\n",
1993 test_put->daemon->shortname);
1995 test_put->dht_handle = GNUNET_DHT_connect(test_put->daemon->cfg, 10);
1997 GNUNET_assert(test_put->dht_handle != NULL);
1999 GNUNET_DHT_put(test_put->dht_handle,
2000 &known_keys[test_put->uid],
2003 GNUNET_BLOCK_TYPE_TEST,
2005 GNUNET_TIME_UNIT_FOREVER_ABS,
2007 &put_finished, test_put);
2008 test_put->disconnect_task = GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_get_forever(), &put_disconnect_task, test_put);
2009 rand = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, 2);
2010 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, rand), &do_put, test_put->next);
2014 schedule_find_peer_requests (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc);
2017 setup_malicious_peers (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc);
2020 * Given a number of total peers and a bucket size, estimate the number of
2021 * connections in a perfect kademlia topology.
2023 static unsigned int connection_estimate(unsigned int peer_count, unsigned int bucket_size)
2026 unsigned int filled;
2030 while (i >= bucket_size)
2035 filled++; /* Add one filled bucket to account for one "half full" and some miscellaneous */
2036 return filled * bucket_size * peer_count;
2042 * Callback for iterating over all the peer connections of a peer group.
2045 count_peers_cb (void *cls,
2046 const struct GNUNET_PeerIdentity *first,
2047 const struct GNUNET_PeerIdentity *second,
2050 struct FindPeerContext *find_peer_context = cls;
2051 if ((first != NULL) && (second != NULL))
2053 add_new_connection(find_peer_context, first, second);
2054 find_peer_context->current_peers++;
2058 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Peer count finished (%u connections), %u new peers, connection estimate %u (target %u)\n",
2059 find_peer_context->current_peers,
2060 find_peer_context->current_peers - find_peer_context->previous_peers,
2061 connection_estimate(num_peers, DEFAULT_BUCKET_SIZE),
2062 target_total_connections);
2064 if ((find_peer_context->last_sent < 8) ||
2065 ((find_peer_context->current_peers - find_peer_context->previous_peers > FIND_PEER_THRESHOLD) &&
2066 (find_peer_context->current_peers < 2 * connection_estimate(num_peers, DEFAULT_BUCKET_SIZE)) &&
2067 (GNUNET_TIME_absolute_get_remaining(find_peer_context->endtime).rel_value > 0) &&
2068 (find_peer_context->current_peers < target_total_connections)))
2070 GNUNET_SCHEDULER_add_now(&schedule_find_peer_requests, find_peer_context);
2074 GNUNET_CONTAINER_multihashmap_iterate(find_peer_context->peer_hash, &remove_peer_count, find_peer_context);
2075 GNUNET_CONTAINER_multihashmap_destroy(find_peer_context->peer_hash);
2076 GNUNET_CONTAINER_heap_destroy(find_peer_context->peer_min_heap);
2077 GNUNET_free(find_peer_context);
2078 fprintf(stderr, "Not sending any more find peer requests.\n");
2081 if (GNUNET_YES == malicious_after_settle)
2083 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "calling setup_malicious_peers\n");
2084 GNUNET_SCHEDULER_add_now(&setup_malicious_peers, NULL);
2093 * Set up a single find peer request for each peer in the topology. Do this
2094 * until the settle time is over, limited by the number of outstanding requests
2095 * and the time allowed for each one!
2098 schedule_find_peer_requests (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
2100 struct FindPeerContext *find_peer_ctx = cls;
2101 struct TestFindPeer *test_find_peer;
2102 struct PeerCount *peer_count;
2106 if (find_peer_ctx->previous_peers == 0) /* First time, go slowly */
2107 find_peer_ctx->total = 1;
2108 else if (find_peer_ctx->current_peers - find_peer_ctx->previous_peers > MAX_FIND_PEER_CUTOFF) /* Found LOTS of peers, still go slowly */
2109 find_peer_ctx->total = find_peer_ctx->last_sent - (find_peer_ctx->last_sent / 8);
2111 find_peer_ctx->total = find_peer_ctx->last_sent * 2;
2113 if (find_peer_ctx->total > max_outstanding_find_peers)
2114 find_peer_ctx->total = max_outstanding_find_peers;
2116 if (find_peer_ctx->total > num_peers) /* Don't try to send more messages than we have peers! */
2117 find_peer_ctx->total = num_peers;
2119 find_peer_ctx->last_sent = find_peer_ctx->total;
2120 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Sending %u find peer messages (goal at least %u connections)\n", find_peer_ctx->total, target_total_connections);
2122 find_peer_offset = GNUNET_TIME_relative_divide(find_peer_delay, find_peer_ctx->total);
2123 for (i = 0; i < find_peer_ctx->total; i++)
2125 test_find_peer = GNUNET_malloc(sizeof(struct TestFindPeer));
2126 /* If we haven't sent any requests yet, choose random peers */
2127 /* Also choose random in _half_ of all cases, so we don't
2128 * get stuck choosing topologically restricted peers with
2129 * few connections that will never be able to find any new
2131 if ((find_peer_ctx->previous_peers == 0) || (i % 2 == 0))
2134 * Attempt to spread find peer requests across even sections of the peer address
2135 * space. Choose basically 1 peer in every num_peers / max_outstanding_requests
2136 * each time, then offset it by a randomish value.
2138 * For instance, if num_peers is 100 and max_outstanding is 10, first chosen peer
2139 * will be between 0 - 10, second between 10 - 20, etc.
2141 random = (num_peers / find_peer_ctx->total) * i;
2142 random = random + GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, (num_peers / find_peer_ctx->total));
2143 if (random >= num_peers)
2145 random = random - num_peers;
2148 random = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers);
2150 test_find_peer->daemon = GNUNET_TESTING_daemon_get(pg, random);
2152 else /* If we have sent requests, choose peers with a low number of connections to send requests from */
2154 peer_count = GNUNET_CONTAINER_heap_remove_root(find_peer_ctx->peer_min_heap);
2155 GNUNET_assert(GNUNET_YES == GNUNET_CONTAINER_multihashmap_remove(find_peer_ctx->peer_hash, &peer_count->peer_id.hashPubKey, peer_count));
2156 test_find_peer->daemon = GNUNET_TESTING_daemon_get_by_id(pg, &peer_count->peer_id);
2157 GNUNET_assert(test_find_peer->daemon != NULL);
2160 test_find_peer->find_peer_context = find_peer_ctx;
2161 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_multiply(find_peer_offset, i), &send_find_peer_request, test_find_peer);
2164 if ((find_peer_ctx->peer_hash == NULL) && (find_peer_ctx->peer_min_heap == NULL))
2166 find_peer_ctx->peer_hash = GNUNET_CONTAINER_multihashmap_create(num_peers);
2167 find_peer_ctx->peer_min_heap = GNUNET_CONTAINER_heap_create(GNUNET_CONTAINER_HEAP_ORDER_MIN);
2171 GNUNET_CONTAINER_multihashmap_iterate(find_peer_ctx->peer_hash, &remove_peer_count, find_peer_ctx);
2172 GNUNET_CONTAINER_multihashmap_destroy(find_peer_ctx->peer_hash);
2173 find_peer_ctx->peer_hash = GNUNET_CONTAINER_multihashmap_create(num_peers);
2176 GNUNET_assert(0 == GNUNET_CONTAINER_multihashmap_size(find_peer_ctx->peer_hash));
2177 GNUNET_assert(0 == GNUNET_CONTAINER_heap_get_size(find_peer_ctx->peer_min_heap));
2182 * Convert unique ID to hash code.
2184 * @param uid unique ID to convert
2185 * @param hash set to uid (extended with zeros)
2188 hash_from_uid (uint32_t uid, GNUNET_HashCode *hash)
2190 memset (hash, 0, sizeof (GNUNET_HashCode));
2191 *((uint32_t *) hash) = uid;
2196 * Set up all of the put and get operations we want to do
2197 * in the current round. Allocate data structure for each,
2198 * add to list, then schedule the actual PUT operations.
2201 setup_puts_and_gets (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
2204 struct TestPutContext *test_put;
2205 struct TestGetContext *test_get;
2207 GNUNET_HashCode uid_hash;
2210 int remember[num_puts][num_peers];
2211 memset(&remember, 0, sizeof(int) * num_puts * num_peers);
2213 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "in setup_puts_and_gets\n");
2214 known_keys = GNUNET_malloc(sizeof(GNUNET_HashCode) * num_puts);
2215 for (i = 0; i < num_puts; i++)
2217 test_put = GNUNET_malloc(sizeof(struct TestPutContext));
2219 GNUNET_CRYPTO_hash_create_random (GNUNET_CRYPTO_QUALITY_WEAK, &known_keys[i]);
2220 /* Set first X bits to match the chosen sybil location if we want to do the sybil attack! */
2221 if (GNUNET_YES == malicious_sybil)
2223 memcpy(&known_keys[i], &sybil_target, sizeof(GNUNET_HashCode) / 2);
2224 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Distance between sybil location and key is %d\n", GNUNET_CRYPTO_hash_matching_bits(&known_keys[i], &sybil_target));
2226 temp_peer = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers);
2227 test_put->daemon = GNUNET_TESTING_daemon_get(pg, temp_peer);
2228 /* Don't start PUTs at malicious peers! */
2229 if (malicious_bloom != NULL)
2232 hash_from_uid(temp_peer, &uid_hash);
2233 while ((GNUNET_YES == GNUNET_CONTAINER_bloomfilter_test(malicious_bloom, &uid_hash)) && (count < num_peers))
2235 temp_peer = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers);
2236 hash_from_uid(temp_peer, &uid_hash);
2237 test_put->daemon = GNUNET_TESTING_daemon_get(pg, temp_peer);
2240 if (count == num_peers)
2241 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Couldn't find peer not in malicious bloom to select!\n");
2244 test_put->next = all_puts;
2245 all_puts = test_put;
2248 for (i = 0; i < num_gets; i++)
2250 test_get = GNUNET_malloc(sizeof(struct TestGetContext));
2251 test_get->uid = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_puts);
2253 while (remember[test_get->uid][temp_daemon] == 1)
2254 temp_daemon = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers);
2255 remember[test_get->uid][temp_daemon] = 1;
2257 temp_peer = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers);
2258 test_get->daemon = GNUNET_TESTING_daemon_get(pg, temp_peer);
2259 /* Don't start GETs at malicious peers! */
2260 if (malicious_bloom != NULL)
2262 hash_from_uid(temp_peer, &uid_hash);
2264 while ((GNUNET_YES == GNUNET_CONTAINER_bloomfilter_test(malicious_bloom, &uid_hash)) && (count < num_peers))
2266 temp_peer = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers);
2267 hash_from_uid(temp_peer, &uid_hash);
2268 test_get->daemon = GNUNET_TESTING_daemon_get(pg, temp_peer);
2271 if (count == num_peers)
2272 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Couldn't find peer not in malicious bloom to select!\n");
2274 test_get->next = all_gets;
2275 all_gets = test_get;
2278 /*GNUNET_SCHEDULER_cancel (die_task);*/
2279 die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, num_puts * 2),
2280 &end_badly, "from do puts");
2281 GNUNET_SCHEDULER_add_now (&do_put, all_puts);
2286 * Set up some all of the put and get operations we want
2287 * to do. Allocate data structure for each, add to list,
2288 * then call actual insert functions.
2291 continue_puts_and_gets (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
2295 struct TopologyIteratorContext *topo_ctx;
2296 struct FindPeerContext *find_peer_context;
2297 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "In continue_puts_and_gets\n");
2298 if ((dhtlog_handle != NULL) && (GNUNET_NO == dhtlog_minimal))
2300 if (settle_time >= 180 * 2)
2301 max = (settle_time / 180) - 2;
2304 for (i = 1; i < max; i++)
2306 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
2307 topo_ctx->current_iteration = i;
2308 topo_ctx->total_iterations = max;
2309 topo_ctx->peers_seen = GNUNET_CONTAINER_multihashmap_create(num_peers);
2310 //fprintf(stderr, "scheduled topology iteration in %d minutes\n", i);
2311 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MINUTES, i * 3), &capture_current_topology, topo_ctx);
2313 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
2314 topo_ctx->cont = &setup_puts_and_gets;
2315 topo_ctx->peers_seen = GNUNET_CONTAINER_multihashmap_create(num_peers);
2316 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "setting setup_puts_and_gets for %d seconds in the future\n", settle_time + 10);
2317 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, (settle_time + 10)), &capture_current_topology, topo_ctx);
2320 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, (settle_time + 10)), &setup_puts_and_gets, NULL);
2322 if (dhtlog_handle != NULL)
2323 dhtlog_handle->insert_round(DHT_ROUND_NORMAL, rounds_finished);
2326 if ((GNUNET_YES != malicious_after_settle) || (settle_time == 0))
2328 GNUNET_SCHEDULER_add_now(&setup_malicious_peers, NULL);
2332 if ((GNUNET_YES == do_find_peer) && (settle_time > 0))
2334 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Scheduling find peer requests during \"settle\" time.\n");
2335 find_peer_context = GNUNET_malloc(sizeof(struct FindPeerContext));
2336 find_peer_context->count_peers_cb = &count_peers_cb;
2337 find_peer_context->endtime = GNUNET_TIME_relative_to_absolute(GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, settle_time));
2338 GNUNET_SCHEDULER_add_now(&schedule_find_peer_requests, find_peer_context);
2342 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Assuming automatic DHT find peer requests.\n");
2347 * Task to release DHT handles
2350 malicious_disconnect_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
2352 struct MaliciousContext *ctx = cls;
2353 outstanding_malicious--;
2354 malicious_completed++;
2355 ctx->disconnect_task = GNUNET_SCHEDULER_NO_TASK;
2356 GNUNET_DHT_disconnect(ctx->dht_handle);
2357 ctx->dht_handle = NULL;
2360 if (malicious_completed == malicious_getters + malicious_putters + malicious_droppers)
2362 fprintf(stderr, "Finished setting all malicious peers up!\n");
2368 * Task to release DHT handles
2371 malicious_done_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
2373 struct MaliciousContext *ctx = cls;
2374 GNUNET_SCHEDULER_cancel(ctx->disconnect_task);
2375 GNUNET_SCHEDULER_add_now(&malicious_disconnect_task, ctx);
2379 * Set up some data, and call API PUT function
2382 set_malicious (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
2384 struct MaliciousContext *ctx = cls;
2386 if (outstanding_malicious > DEFAULT_MAX_OUTSTANDING_GETS)
2388 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MILLISECONDS, 100), &set_malicious, ctx);
2392 if (ctx->dht_handle == NULL)
2394 ctx->dht_handle = GNUNET_DHT_connect(ctx->daemon->cfg, 1);
2395 outstanding_malicious++;
2398 GNUNET_assert(ctx->dht_handle != NULL);
2402 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Setting peer %s malicious type %d\n",
2403 ctx->daemon->shortname, ctx->malicious_type);
2406 switch (ctx->malicious_type)
2408 case GNUNET_MESSAGE_TYPE_DHT_MALICIOUS_GET:
2409 GNUNET_DHT_set_malicious_getter(ctx->dht_handle, malicious_get_frequency);
2410 GNUNET_SCHEDULER_add_now (&malicious_done_task, ctx);
2412 case GNUNET_MESSAGE_TYPE_DHT_MALICIOUS_PUT:
2413 GNUNET_DHT_set_malicious_putter(ctx->dht_handle, malicious_put_frequency);
2414 GNUNET_SCHEDULER_add_now (&malicious_done_task, ctx);
2416 case GNUNET_MESSAGE_TYPE_DHT_MALICIOUS_DROP:
2417 GNUNET_DHT_set_malicious_dropper(ctx->dht_handle);
2418 GNUNET_SCHEDULER_add_now (&malicious_done_task, ctx);
2424 ctx->disconnect_task = GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_UNIT_FOREVER_REL,
2425 &malicious_disconnect_task, ctx);
2431 * Choose the next peer from the peer group to set as malicious.
2432 * If we are doing a sybil attack, find the nearest peer to the
2433 * sybil location that has not already been set malicious. Otherwise
2434 * just choose a random not already chosen peer.
2436 * @param pg the peer group
2437 * @param bloom the bloomfilter which contains all peer already
2438 * chosen to be malicious
2441 choose_next_malicious (struct GNUNET_TESTING_PeerGroup *pg, struct GNUNET_CONTAINER_BloomFilter *bloom)
2448 struct GNUNET_TESTING_Daemon *temp_daemon;
2449 GNUNET_HashCode uid_hash;
2453 GNUNET_assert (bloom != NULL);
2455 if (GNUNET_YES == malicious_sybil)
2457 for (i = 0; i < num_peers; i++)
2459 temp_daemon = GNUNET_TESTING_daemon_get(pg, i);
2460 hash_from_uid(i, &uid_hash);
2461 /* Check if this peer matches the bloomfilter */
2462 if ((GNUNET_NO == GNUNET_TESTING_daemon_running(temp_daemon)) || (GNUNET_YES == GNUNET_CONTAINER_bloomfilter_test (bloom, &uid_hash)))
2465 bits_match = GNUNET_CRYPTO_hash_matching_bits (&temp_daemon->id.hashPubKey, &sybil_target);
2466 if (bits_match >= curr_distance)
2468 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "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);
2470 curr_distance = bits_match;
2476 nearest = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers);
2477 hash_from_uid(nearest, &uid_hash);
2479 while ((GNUNET_YES == GNUNET_CONTAINER_bloomfilter_test (bloom, &uid_hash)) && (count < num_peers))
2481 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Peer %d already in bloom (tried %d times)\n", nearest, count);
2482 nearest = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers);
2483 hash_from_uid(nearest, &uid_hash);
2486 if (count == num_peers)
2487 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Tried %d times to find a peer, selecting %d at random!!\n", count, nearest);
2494 * Select randomly from set of known peers,
2495 * set the desired number of peers to the
2496 * proper malicious types.
2499 setup_malicious_peers (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
2501 struct MaliciousContext *ctx;
2503 uint32_t temp_daemon;
2504 GNUNET_HashCode uid_hash;
2506 for (i = 0; i < malicious_getters; i++)
2508 ctx = GNUNET_malloc(sizeof(struct MaliciousContext));
2509 temp_daemon = choose_next_malicious(pg, malicious_bloom);
2510 ctx->daemon = GNUNET_TESTING_daemon_get(pg, temp_daemon);
2511 hash_from_uid(temp_daemon, &uid_hash);
2512 GNUNET_CONTAINER_bloomfilter_add(malicious_bloom, &uid_hash);
2513 ctx->malicious_type = GNUNET_MESSAGE_TYPE_DHT_MALICIOUS_GET;
2514 GNUNET_SCHEDULER_add_now (&set_malicious, ctx);
2518 for (i = 0; i < malicious_putters; i++)
2520 ctx = GNUNET_malloc(sizeof(struct MaliciousContext));
2521 temp_daemon = choose_next_malicious(pg, malicious_bloom);
2522 ctx->daemon = GNUNET_TESTING_daemon_get(pg, temp_daemon);
2523 hash_from_uid(temp_daemon, &uid_hash);
2524 GNUNET_CONTAINER_bloomfilter_add(malicious_bloom, &uid_hash);
2525 ctx->malicious_type = GNUNET_MESSAGE_TYPE_DHT_MALICIOUS_PUT;
2526 GNUNET_SCHEDULER_add_now (&set_malicious, ctx);
2530 for (i = 0; i < malicious_droppers; i++)
2532 ctx = GNUNET_malloc(sizeof(struct MaliciousContext));
2533 temp_daemon = choose_next_malicious(pg, malicious_bloom);
2534 ctx->daemon = GNUNET_TESTING_daemon_get(pg, temp_daemon);
2535 hash_from_uid(temp_daemon, &uid_hash);
2536 GNUNET_CONTAINER_bloomfilter_add(malicious_bloom, &uid_hash);
2537 ctx->malicious_type = GNUNET_MESSAGE_TYPE_DHT_MALICIOUS_DROP;
2538 GNUNET_SCHEDULER_add_now (&set_malicious, ctx);
2543 /* Forward declaration */
2545 topology_callback (void *cls,
2546 const struct GNUNET_PeerIdentity *first,
2547 const struct GNUNET_PeerIdentity *second,
2549 const struct GNUNET_CONFIGURATION_Handle *first_cfg,
2550 const struct GNUNET_CONFIGURATION_Handle *second_cfg,
2551 struct GNUNET_TESTING_Daemon *first_daemon,
2552 struct GNUNET_TESTING_Daemon *second_daemon,
2556 * Retry connecting two specific peers until they connect,
2557 * at a specific interval. These two peers previously failed
2558 * to connect, and we hope they continue to so that we can
2559 * debug the reason they are having issues.
2562 repeat_connect (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
2565 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Repeating connect attempt between %s and %s.\n", repeat_connect_peer1->shortname, repeat_connect_peer2->shortname);
2566 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Peer 1 configuration `%s'\n", repeat_connect_peer1->cfgfile);
2567 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Peer 2 configuration `%s'\n", repeat_connect_peer2->cfgfile);
2569 GNUNET_TESTING_daemons_connect(repeat_connect_peer1,
2570 repeat_connect_peer2,
2571 GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 60),
2572 2, &topology_callback, NULL);
2577 * This function is called whenever a connection attempt is finished between two of
2578 * the started peers (started with GNUNET_TESTING_daemons_start). The total
2579 * number of times this function is called should equal the number returned
2580 * from the GNUNET_TESTING_connect_topology call.
2582 * The emsg variable is NULL on success (peers connected), and non-NULL on
2583 * failure (peers failed to connect).
2586 topology_callback (void *cls,
2587 const struct GNUNET_PeerIdentity *first,
2588 const struct GNUNET_PeerIdentity *second,
2590 const struct GNUNET_CONFIGURATION_Handle *first_cfg,
2591 const struct GNUNET_CONFIGURATION_Handle *second_cfg,
2592 struct GNUNET_TESTING_Daemon *first_daemon,
2593 struct GNUNET_TESTING_Daemon *second_daemon,
2596 struct TopologyIteratorContext *topo_ctx;
2597 unsigned long long duration;
2598 unsigned long long total_duration;
2599 unsigned int new_connections;
2600 float conns_per_sec_recent;
2601 float conns_per_sec_total;
2604 if (repeat_connect_mode == GNUNET_YES)
2606 if ((first_daemon == repeat_connect_peer1) &&
2607 (second_daemon == repeat_connect_peer2))
2609 if (emsg != NULL) /* Peers failed to connect again! */
2611 else /* Repeat peers actually connected! */
2613 if (repeat_connect_task != GNUNET_SCHEDULER_NO_TASK)
2614 GNUNET_SCHEDULER_cancel(repeat_connect_task);
2615 repeat_connect_peer1 = NULL;
2616 repeat_connect_peer2 = NULL;
2617 repeat_connect_mode = GNUNET_NO;
2623 if (GNUNET_TIME_absolute_get_difference (connect_last_time,
2624 GNUNET_TIME_absolute_get()).rel_value > GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, CONN_UPDATE_DURATION).rel_value)
2626 /* Get number of new connections */
2627 new_connections = total_connections - previous_connections;
2628 /* Get duration in seconds */
2629 duration = GNUNET_TIME_absolute_get_difference (connect_last_time,
2630 GNUNET_TIME_absolute_get()).rel_value / 1000;
2631 total_duration = GNUNET_TIME_absolute_get_difference (connect_start_time,
2632 GNUNET_TIME_absolute_get()).rel_value / 1000;
2633 conns_per_sec_recent = (float)new_connections / duration;
2634 conns_per_sec_total = (float)total_connections / total_duration;
2635 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Conns/sec in last %d seconds: %f, Conns/sec for entire duration: %f\n", CONN_UPDATE_DURATION, (float)new_connections / duration, (float)total_connections / total_duration);
2636 connect_last_time = GNUNET_TIME_absolute_get();
2637 previous_connections = total_connections;
2638 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "have %u total_connections\n", total_connections);
2640 /* These conditions likely mean we've entered the death spiral of doom */
2641 if ((total_connections > 100000) &&
2642 (conns_per_sec_recent < 5.0) &&
2643 (conns_per_sec_total > 10.0) &&
2645 (repeat_connect_mode == GNUNET_NO))
2647 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Entering repeat connection attempt mode!\n");
2649 repeat_connect_peer1 = first_daemon;
2650 repeat_connect_peer2 = second_daemon;
2651 repeat_connect_mode = GNUNET_YES;
2652 repeat_connect_task = GNUNET_SCHEDULER_add_now(&repeat_connect, NULL);
2659 total_connections++;
2661 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "connected peer %s to peer %s, distance %u\n",
2662 first_daemon->shortname,
2663 second_daemon->shortname,
2669 failed_connections++;
2670 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Failed to connect peer %s to peer %s with error :\n%s\n",
2671 first_daemon->shortname,
2672 second_daemon->shortname, emsg);
2674 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Failed to connect peer %s to peer %s with error :\n%s\n",
2675 first_daemon->shortname,
2676 second_daemon->shortname, emsg);
2681 if (repeat_connect_mode == GNUNET_YES)
2685 GNUNET_assert(peer_connect_meter != NULL);
2686 if (GNUNET_YES == update_meter(peer_connect_meter))
2689 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2690 "Created %d total connections, which is our target number! Starting next phase of testing.\n",
2693 if (failed_connections > 0)
2694 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "While connecting, had %u failed connections.\n", failed_connections);
2695 if (dhtlog_handle != NULL)
2697 dhtlog_handle->update_connections (total_connections);
2698 dhtlog_handle->insert_topology(expected_connections);
2701 GNUNET_SCHEDULER_cancel (die_task);
2703 if ((GNUNET_YES == dhtlog_minimal) && (NULL != dhtlog_handle))
2705 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
2706 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Setting continue gets and puts as topo_cont\n");
2707 topo_ctx->cont = &continue_puts_and_gets;
2708 topo_ctx->peers_seen = GNUNET_CONTAINER_multihashmap_create(num_peers);
2709 GNUNET_SCHEDULER_add_now(&capture_current_topology, topo_ctx);
2713 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "For some reason, NOT scheduling final topology capture (settle_time %d, dhtlog_handle %s)!\n", settle_time, dhtlog_handle);
2714 GNUNET_SCHEDULER_add_now(&continue_puts_and_gets, NULL);
2717 else if (total_connections + failed_connections == expected_connections)
2719 GNUNET_SCHEDULER_cancel (die_task);
2720 die_task = GNUNET_SCHEDULER_add_now (&end_badly, "from topology_callback (too many failed connections)");
2725 peers_started_callback (void *cls,
2726 const struct GNUNET_PeerIdentity *id,
2727 const struct GNUNET_CONFIGURATION_Handle *cfg,
2728 struct GNUNET_TESTING_Daemon *d, const char *emsg)
2732 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Failed to start daemon with error: `%s'\n",
2736 GNUNET_assert (id != NULL);
2739 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Started daemon %llu out of %llu\n",
2740 (num_peers - peers_left) + 1, num_peers);
2745 if (GNUNET_YES == update_meter(peer_start_meter))
2748 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2749 "All %d daemons started, now connecting peers!\n",
2752 GNUNET_SCHEDULER_cancel (die_task);
2754 expected_connections = UINT_MAX;
2755 if ((pg != NULL) && (peers_left == 0))
2757 connect_start_time = GNUNET_TIME_absolute_get();
2758 expected_connections = GNUNET_TESTING_connect_topology(pg,
2759 connect_topology, connect_topology_option,
2760 connect_topology_option_modifier,
2761 connect_timeout, connect_attempts,
2764 peer_connect_meter = create_meter(expected_connections, "Peer connection ", GNUNET_YES);
2765 fprintf(stderr, "Have %d expected connections\n", expected_connections);
2768 if (expected_connections == GNUNET_SYSERR)
2770 die_task = GNUNET_SCHEDULER_add_now (&end_badly, "from connect topology (bad return)");
2773 die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, DEFAULT_CONNECT_TIMEOUT * expected_connections),
2774 &end_badly, "from connect topology (timeout)");
2783 peers_left = num_peers; /* Reset counter */
2784 if (GNUNET_TESTING_create_topology (pg, topology, blacklist_topology, blacklist_transports) != GNUNET_SYSERR)
2786 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2787 "Topology set up, now starting peers!\n");
2788 GNUNET_TESTING_daemons_continue_startup(pg);
2792 GNUNET_SCHEDULER_cancel (die_task);
2793 die_task = GNUNET_SCHEDULER_add_now (&end_badly, "from create topology (bad return)");
2795 GNUNET_free_non_null(blacklist_transports);
2796 GNUNET_SCHEDULER_cancel (die_task);
2797 die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(seconds_per_peer_start, num_peers),
2798 &end_badly, "from continue startup (timeout)");
2802 * Callback indicating that the hostkey was created for a peer.
2805 * @param id the peer identity
2806 * @param d the daemon handle (pretty useless at this point, remove?)
2807 * @param emsg non-null on failure
2810 hostkey_callback (void *cls,
2811 const struct GNUNET_PeerIdentity *id,
2812 struct GNUNET_TESTING_Daemon *d,
2817 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Hostkey callback received error: %s\n", emsg);
2821 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2822 "Hostkey (%d/%d) created for peer `%s'\n",
2823 num_peers - peers_left, num_peers, GNUNET_i2s(id));
2827 if (GNUNET_YES == update_meter(hostkey_meter))
2829 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2830 "All %d hostkeys created, now creating topology!\n",
2832 GNUNET_SCHEDULER_cancel (die_task);
2833 /* Set up task in case topology creation doesn't finish
2834 * within a reasonable amount of time */
2835 die_task = GNUNET_SCHEDULER_add_delayed (DEFAULT_TOPOLOGY_TIMEOUT,
2836 &end_badly, "from create_topology");
2837 GNUNET_SCHEDULER_add_now(&create_topology, NULL);
2846 const char *cfgfile, const struct GNUNET_CONFIGURATION_Handle *cfg)
2849 struct GNUNET_DHTLOG_TrialInfo trial_info;
2850 struct GNUNET_TESTING_Host *hosts;
2851 struct GNUNET_TESTING_Host *temphost;
2852 struct GNUNET_TESTING_Host *tempnext;
2854 char *connect_topology_str;
2855 char *blacklist_topology_str;
2856 char *connect_topology_option_str;
2857 char *connect_topology_option_modifier_string;
2859 char *topology_percentage_str;
2860 float topology_percentage;
2861 char *topology_probability_str;
2863 float topology_probability;
2864 unsigned long long temp_config_number;
2865 unsigned long long trial_to_run;
2868 int strict_kademlia;
2872 char *churn_filename;
2879 rounds_finished = 0;
2880 memset(&trial_info, 0, sizeof(struct GNUNET_DHTLOG_TrialInfo));
2881 /* Get path from configuration file */
2882 if (GNUNET_YES != GNUNET_CONFIGURATION_get_value_string(cfg, "paths", "servicehome", &test_directory))
2888 /* Get number of peers to start from configuration */
2889 if (GNUNET_SYSERR ==
2890 GNUNET_CONFIGURATION_get_value_number (cfg, "testing", "num_peers",
2893 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2894 "Number of peers must be specified in section %s option %s\n", "TESTING", "NUM_PEERS");
2896 GNUNET_assert(num_peers > 0 && num_peers < ULONG_MAX);
2899 GNUNET_CONFIGURATION_get_value_number (cfg, "testing", "connect_timeout",
2900 &temp_config_number))
2902 GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, temp_config_number);
2905 GNUNET_log(GNUNET_ERROR_TYPE_ERROR, "Must provide option %s:%s!\n", "testing", "connect_timeout");
2911 GNUNET_CONFIGURATION_get_value_number (cfg, "testing", "connect_attempts",
2914 GNUNET_log(GNUNET_ERROR_TYPE_ERROR, "Must provide option %s:%s!\n", "testing", "connect_attempts");
2919 GNUNET_CONFIGURATION_get_value_number (cfg, "testing", "max_outstanding_connections",
2920 &max_outstanding_connections))
2922 GNUNET_log(GNUNET_ERROR_TYPE_ERROR, "Must provide option %s:%s!\n", "testing", "max_outstanding_connections");
2927 GNUNET_CONFIGURATION_get_value_number (cfg, "testing", "max_concurrent_ssh",
2928 &max_concurrent_ssh))
2930 GNUNET_log(GNUNET_ERROR_TYPE_ERROR, "Must provide option %s:%s!\n", "testing", "max_concurrent_ssh");
2935 * Get DHT specific testing options.
2937 if ((GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht_testing", "mysql_logging")) ||
2938 (GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht_testing", "mysql_logging_extended")) ||
2939 (GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht_testing", "mysql_logging_minimal")))
2941 if (GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht_testing", "mysql_logging_minimal"))
2942 dhtlog_minimal = GNUNET_YES;
2944 dhtlog_handle = GNUNET_DHTLOG_connect(cfg);
2945 if (dhtlog_handle == NULL)
2947 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2948 "Could not connect to mysql server for logging, will NOT log dht operations!");
2954 stop_closest = GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht", "stop_on_closest");
2955 if (stop_closest == GNUNET_SYSERR)
2956 stop_closest = GNUNET_NO;
2958 stop_found = GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht", "stop_found");
2959 if (stop_found == GNUNET_SYSERR)
2960 stop_found = GNUNET_NO;
2962 strict_kademlia = GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht", "strict_kademlia");
2963 if (strict_kademlia == GNUNET_SYSERR)
2964 strict_kademlia = GNUNET_NO;
2967 GNUNET_CONFIGURATION_get_value_string (cfg, "dht_testing", "comment",
2969 trialmessage = NULL;
2972 /** Check for a churn file to do churny simulation */
2974 GNUNET_CONFIGURATION_get_value_string(cfg, "dht_testing", "churn_file",
2977 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Reading churn data from %s\n", churn_filename);
2978 if (GNUNET_OK != GNUNET_DISK_file_test (churn_filename))
2980 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Error reading churn file!\n");
2981 GNUNET_free_non_null(trialmessage);
2982 GNUNET_free(churn_filename);
2985 if ((0 != STAT (churn_filename, &frstat)) || (frstat.st_size == 0))
2987 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
2988 "Could not open file specified for churn data, ending test!");
2990 GNUNET_free_non_null(trialmessage);
2991 GNUNET_free(churn_filename);
2995 churn_data = GNUNET_malloc_large (frstat.st_size);
2996 GNUNET_assert(churn_data != NULL);
2997 if (frstat.st_size !=
2998 GNUNET_DISK_fn_read (churn_filename, churn_data, frstat.st_size))
3000 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
3001 "Could not read file %s specified for churn, ending test!", churn_filename);
3002 GNUNET_free (churn_filename);
3003 GNUNET_free (churn_data);
3004 GNUNET_free_non_null(trialmessage);
3008 GNUNET_free_non_null(churn_filename);
3012 /* Read the first line */
3013 while (count < frstat.st_size)
3016 if (((churn_data[count] == '\n')) && (buf != &churn_data[count]))
3018 churn_data[count] = '\0';
3019 if (1 != sscanf(buf, "%u", &churn_rounds))
3021 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Failed to read number of rounds from churn file, ending test!\n");
3023 GNUNET_free_non_null(trialmessage);
3024 GNUNET_free_non_null(churn_data);
3027 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Read %u rounds from churn file\n", churn_rounds);
3028 buf = &churn_data[count + 1];
3029 churn_array = GNUNET_malloc(sizeof(unsigned int) * churn_rounds);
3030 break; /* Done with this part */
3034 if (GNUNET_OK != GNUNET_CONFIGURATION_get_value_number(cfg, "dht_testing", "churns_per_round", &churns_per_round))
3036 churns_per_round = (unsigned long long)churn_rounds;
3040 while ((count < frstat.st_size) && (line_number < churn_rounds))
3043 if (((churn_data[count] == '\n')) && (buf != &churn_data[count]))
3045 churn_data[count] = '\0';
3047 ret = sscanf(buf, "%u", &churn_array[line_number]);
3050 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Read %u peers in round %u\n", churn_array[line_number], line_number);
3055 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Error reading line `%s' in hostfile\n", buf);
3056 buf = &churn_data[count + 1];
3059 buf = &churn_data[count + 1];
3061 else if (churn_data[count] == '\n') /* Blank line */
3062 buf = &churn_data[count + 1];
3065 GNUNET_free_non_null(churn_data);
3067 /* Check for a hostfile containing user@host:port triples */
3069 GNUNET_CONFIGURATION_get_value_string (cfg, "testing", "hostfile",
3076 if (hostfile != NULL)
3078 if (GNUNET_OK != GNUNET_DISK_file_test (hostfile))
3079 GNUNET_DISK_fn_write (hostfile, NULL, 0, GNUNET_DISK_PERM_USER_READ
3080 | GNUNET_DISK_PERM_USER_WRITE);
3081 if ((0 != STAT (hostfile, &frstat)) || (frstat.st_size == 0))
3083 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
3084 "Could not open file specified for host list, ending test!");
3086 GNUNET_free_non_null(trialmessage);
3087 GNUNET_free(hostfile);
3091 data = GNUNET_malloc_large (frstat.st_size);
3092 GNUNET_assert(data != NULL);
3093 if (frstat.st_size !=
3094 GNUNET_DISK_fn_read (hostfile, data, frstat.st_size))
3096 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
3097 "Could not read file %s specified for host list, ending test!", hostfile);
3098 GNUNET_free (hostfile);
3100 GNUNET_free_non_null(trialmessage);
3104 GNUNET_free_non_null(hostfile);
3108 while (count < frstat.st_size - 1)
3111 /* if (((data[count] == '\n') || (data[count] == '\0')) && (buf != &data[count]))*/
3112 if (((data[count] == '\n')) && (buf != &data[count]))
3115 temphost = GNUNET_malloc(sizeof(struct GNUNET_TESTING_Host));
3116 ret = sscanf(buf, "%a[a-zA-Z0-9_]@%a[a-zA-Z0-9.]:%hd", &temphost->username, &temphost->hostname, &temphost->port);
3119 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Successfully read host %s, port %d and user %s from file\n", temphost->hostname, temphost->port, temphost->username);
3123 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Error reading line `%s' in hostfile\n", buf);
3124 GNUNET_free(temphost);
3125 buf = &data[count + 1];
3128 /* temphost->hostname = buf; */
3129 temphost->next = hosts;
3131 buf = &data[count + 1];
3133 else if ((data[count] == '\n') || (data[count] == '\0'))
3134 buf = &data[count + 1];
3137 GNUNET_free_non_null(data);
3139 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "malicious_getters",
3140 &malicious_getters))
3141 malicious_getters = 0;
3144 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "malicious_putters",
3145 &malicious_putters))
3146 malicious_putters = 0;
3149 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "malicious_droppers",
3150 &malicious_droppers))
3151 malicious_droppers = 0;
3154 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "settle_time",
3158 if (GNUNET_SYSERR ==
3159 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "num_puts",
3161 num_puts = num_peers;
3163 if (GNUNET_SYSERR ==
3164 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "put_replication",
3166 put_replication = DEFAULT_PUT_REPLICATION;
3168 if (GNUNET_SYSERR ==
3169 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "num_gets",
3171 num_gets = num_peers;
3173 if (GNUNET_SYSERR ==
3174 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "get_replication",
3176 get_replication = DEFAULT_GET_REPLICATION;
3179 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "find_peer_delay",
3180 &temp_config_number))
3181 find_peer_delay = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_config_number);
3183 find_peer_delay = DEFAULT_FIND_PEER_DELAY;
3186 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "concurrent_find_peers",
3187 &temp_config_number))
3188 max_outstanding_find_peers = temp_config_number;
3190 max_outstanding_find_peers = DEFAULT_MAX_OUTSTANDING_FIND_PEERS;
3193 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "get_timeout",
3194 &temp_config_number))
3195 get_timeout = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_config_number);
3197 get_timeout = DEFAULT_GET_TIMEOUT;
3200 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "concurrent_puts",
3201 &temp_config_number))
3202 max_outstanding_puts = temp_config_number;
3204 max_outstanding_puts = DEFAULT_MAX_OUTSTANDING_PUTS;
3207 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "concurrent_gets",
3208 &temp_config_number))
3209 max_outstanding_gets = temp_config_number;
3211 max_outstanding_gets = DEFAULT_MAX_OUTSTANDING_GETS;
3214 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "timeout",
3215 &temp_config_number))
3216 all_get_timeout = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_config_number);
3218 all_get_timeout.rel_value = get_timeout.rel_value * num_gets;
3221 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "get_delay",
3222 &temp_config_number))
3223 get_delay = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_config_number);
3225 get_delay = DEFAULT_GET_DELAY;
3228 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "put_delay",
3229 &temp_config_number))
3230 put_delay = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_config_number);
3232 put_delay = DEFAULT_PUT_DELAY;
3235 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "peer_start_timeout",
3236 &temp_config_number))
3237 seconds_per_peer_start = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_config_number);
3239 seconds_per_peer_start = DEFAULT_SECONDS_PER_PEER_START;
3242 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "data_size",
3243 &temp_config_number))
3244 test_data_size = temp_config_number;
3246 test_data_size = DEFAULT_TEST_DATA_SIZE;
3249 * Get testing related options.
3251 if (GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno(cfg, "DHT_TESTING", "REPLICATE_SAME"))
3252 replicate_same = GNUNET_YES;
3255 * Get testing related options.
3257 if (GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno(cfg, "DHT_TESTING", "GET_FROM_SAME"))
3258 get_from_same = GNUNET_YES;
3261 if (GNUNET_NO == GNUNET_CONFIGURATION_get_value_time (cfg, "DHT_TESTING",
3262 "MALICIOUS_GET_FREQUENCY",
3263 &malicious_get_frequency))
3264 malicious_get_frequency = DEFAULT_MALICIOUS_GET_FREQUENCY;
3267 if (GNUNET_NO == GNUNET_CONFIGURATION_get_value_time (cfg, "DHT_TESTING",
3268 "MALICIOUS_PUT_FREQUENCY",
3269 &malicious_put_frequency))
3270 malicious_put_frequency = DEFAULT_MALICIOUS_PUT_FREQUENCY;
3272 if (GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno(cfg, "DHT_TESTING", "MALICIOUS_AFTER_SETTLE"))
3273 malicious_after_settle = GNUNET_YES;
3275 if (GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno(cfg, "DHT_TESTING", "MALICIOUS_SYBIL"))
3277 /* Set up the malicious target at random for this round */
3278 GNUNET_CRYPTO_hash_create_random (GNUNET_CRYPTO_QUALITY_WEAK, &sybil_target);
3279 malicious_sybil = GNUNET_YES;
3282 /* Create the bloomfilter for choosing which peers to set malicious */
3284 /* Bloomfilter size must be 2^k for some integer k */
3286 while (1 << k < malicious_droppers)
3288 if (malicious_droppers > 0)
3289 malicious_bloom = GNUNET_CONTAINER_bloomfilter_init (NULL, 1 << k, DHT_BLOOM_K);
3291 /* The normal behavior of the DHT is to do find peer requests
3292 * on its own. Only if this is explicitly turned off should
3293 * the testing driver issue find peer requests (even though
3294 * this is likely the default when testing).
3297 GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht",
3300 do_find_peer = GNUNET_YES;
3304 GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht",
3307 in_dht_replication = GNUNET_YES;
3310 if (GNUNET_YES != GNUNET_CONFIGURATION_get_value_number (cfg, "DHT_TESTING",
3317 if (GNUNET_YES == GNUNET_CONFIGURATION_get_value_number (cfg, "DHT_TESTING",
3319 &temp_config_number))
3321 find_peer_delay = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_config_number);
3324 find_peer_delay = DEFAULT_FIND_PEER_DELAY;
3326 if (GNUNET_YES != GNUNET_CONFIGURATION_get_value_number(cfg, "DHT_TESTING", "ROUND_DELAY", &round_delay))
3329 if (GNUNET_NO == GNUNET_CONFIGURATION_get_value_number (cfg, "DHT_TESTING",
3330 "OUTSTANDING_FIND_PEERS",
3331 &max_outstanding_find_peers))
3332 max_outstanding_find_peers = DEFAULT_MAX_OUTSTANDING_FIND_PEERS;
3334 if (GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht", "strict_kademlia"))
3335 max_outstanding_find_peers = max_outstanding_find_peers * 1;
3337 find_peer_offset = GNUNET_TIME_relative_divide (find_peer_delay, max_outstanding_find_peers);
3339 if (GNUNET_SYSERR ==
3340 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "num_rounds",
3346 if ((GNUNET_SYSERR ==
3347 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "target_total_connections",
3348 &target_total_connections)) ||
3349 (target_total_connections == 0))
3351 target_total_connections = connection_estimate(num_peers, DEFAULT_BUCKET_SIZE);
3354 topology_str = NULL;
3356 GNUNET_CONFIGURATION_get_value_string(cfg, "testing", "topology",
3357 &topology_str)) && (GNUNET_NO == GNUNET_TESTING_topology_get(&topology, topology_str)))
3359 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
3360 "Invalid topology `%s' given for section %s option %s\n", topology_str, "TESTING", "TOPOLOGY");
3361 topology = GNUNET_TESTING_TOPOLOGY_CLIQUE; /* Defaults to NONE, so set better default here */
3365 GNUNET_CONFIGURATION_get_value_string (cfg, "testing", "percentage",
3366 &topology_percentage_str))
3367 topology_percentage = 0.5;
3370 topology_percentage = atof (topology_percentage_str);
3371 GNUNET_free(topology_percentage_str);
3375 GNUNET_CONFIGURATION_get_value_string (cfg, "testing", "probability",
3376 &topology_probability_str))
3377 topology_probability = 0.5;
3380 topology_probability = atof (topology_probability_str);
3381 GNUNET_free(topology_probability_str);
3385 GNUNET_CONFIGURATION_get_value_string(cfg, "testing", "connect_topology",
3386 &connect_topology_str)) && (GNUNET_NO == GNUNET_TESTING_topology_get(&connect_topology, connect_topology_str)))
3388 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
3389 "Invalid connect topology `%s' given for section %s option %s\n", connect_topology_str, "TESTING", "CONNECT_TOPOLOGY");
3391 GNUNET_free_non_null(connect_topology_str);
3394 GNUNET_CONFIGURATION_get_value_string(cfg, "testing", "connect_topology_option",
3395 &connect_topology_option_str)) && (GNUNET_NO == GNUNET_TESTING_topology_option_get(&connect_topology_option, connect_topology_option_str)))
3397 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
3398 "Invalid connect topology option `%s' given for section %s option %s\n", connect_topology_option_str, "TESTING", "CONNECT_TOPOLOGY_OPTION");
3399 connect_topology_option = GNUNET_TESTING_TOPOLOGY_OPTION_ALL; /* Defaults to NONE, set to ALL */
3401 GNUNET_free_non_null(connect_topology_option_str);
3404 GNUNET_CONFIGURATION_get_value_string (cfg, "testing", "connect_topology_option_modifier",
3405 &connect_topology_option_modifier_string))
3407 if (sscanf(connect_topology_option_modifier_string, "%lf", &connect_topology_option_modifier) != 1)
3409 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
3410 _("Invalid value `%s' for option `%s' in section `%s': expected float\n"),
3411 connect_topology_option_modifier_string,
3412 "connect_topology_option_modifier",
3415 GNUNET_free (connect_topology_option_modifier_string);
3418 if (GNUNET_YES != GNUNET_CONFIGURATION_get_value_string (cfg, "testing", "blacklist_transports",
3419 &blacklist_transports))
3420 blacklist_transports = NULL;
3423 GNUNET_CONFIGURATION_get_value_string(cfg, "testing", "blacklist_topology",
3424 &blacklist_topology_str)) &&
3425 (GNUNET_NO == GNUNET_TESTING_topology_get(&blacklist_topology, blacklist_topology_str)))
3427 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
3428 "Invalid topology `%s' given for section %s option %s\n", topology_str, "TESTING", "BLACKLIST_TOPOLOGY");
3430 GNUNET_free_non_null(topology_str);
3431 GNUNET_free_non_null(blacklist_topology_str);
3433 /* Set peers_left so we know when all peers started */
3434 peers_left = num_peers;
3437 /* Set up a task to end testing if peer start fails */
3438 die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(seconds_per_peer_start, num_peers),
3439 &end_badly, "didn't generate all hostkeys within allowed startup time!");
3441 if (dhtlog_handle == NULL)
3442 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
3443 "dhtlog_handle is NULL!");
3445 trial_info.other_identifier = (unsigned int)trial_to_run;
3446 trial_info.num_nodes = peers_left;
3447 trial_info.topology = topology;
3448 trial_info.blacklist_topology = blacklist_topology;
3449 trial_info.connect_topology = connect_topology;
3450 trial_info.connect_topology_option = connect_topology_option;
3451 trial_info.connect_topology_option_modifier = connect_topology_option_modifier;
3452 trial_info.topology_percentage = topology_percentage;
3453 trial_info.topology_probability = topology_probability;
3454 trial_info.puts = num_puts;
3455 trial_info.gets = num_gets;
3456 trial_info.concurrent = max_outstanding_gets;
3457 trial_info.settle_time = settle_time;
3458 trial_info.num_rounds = total_rounds;
3459 trial_info.malicious_getters = malicious_getters;
3460 trial_info.malicious_putters = malicious_putters;
3461 trial_info.malicious_droppers = malicious_droppers;
3462 trial_info.malicious_get_frequency = malicious_get_frequency.rel_value;
3463 trial_info.malicious_put_frequency = malicious_put_frequency.rel_value;
3464 trial_info.stop_closest = stop_closest;
3465 trial_info.stop_found = stop_found;
3466 trial_info.strict_kademlia = strict_kademlia;
3468 if (trialmessage != NULL)
3469 trial_info.message = trialmessage;
3471 trial_info.message = "";
3473 if (dhtlog_handle != NULL)
3474 dhtlog_handle->insert_trial(&trial_info);
3476 GNUNET_free_non_null(trialmessage);
3478 hostkey_meter = create_meter(peers_left, "Hostkeys created ", GNUNET_YES);
3479 peer_start_meter = create_meter(peers_left, "Peers started ", GNUNET_YES);
3481 put_meter = create_meter(num_puts, "Puts completed ", GNUNET_YES);
3482 get_meter = create_meter(num_gets, "Gets completed ", GNUNET_YES);
3483 pg = GNUNET_TESTING_daemons_start (cfg,
3485 max_outstanding_connections,
3487 GNUNET_TIME_relative_multiply(seconds_per_peer_start, num_peers),
3488 &hostkey_callback, NULL,
3489 &peers_started_callback, NULL,
3490 &topology_callback, NULL,
3493 while (temphost != NULL)
3495 tempnext = temphost->next;
3496 GNUNET_free (temphost->username);
3497 GNUNET_free (temphost->hostname);
3498 GNUNET_free (temphost);
3499 temphost = tempnext;
3504 main (int argc, char *argv[])
3507 struct GNUNET_GETOPT_CommandLineOption options[] = {
3508 GNUNET_GETOPT_OPTION_END
3511 ret = GNUNET_PROGRAM_run (argc,
3512 argv, "gnunet-dht-driver", "nohelp",
3513 options, &run, &ok);
3515 if (malicious_bloom != NULL)
3516 GNUNET_CONTAINER_bloomfilter_free (malicious_bloom);
3518 if (ret != GNUNET_OK)
3520 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "`gnunet-dht-driver': Failed with error code %d\n", ret);
3524 * Need to remove base directory, subdirectories taken care
3525 * of by the testing framework.
3527 if (GNUNET_DISK_directory_remove (test_directory) != GNUNET_OK)
3529 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Failed to remove testing directory %s\n", test_directory);
3534 /* end of gnunet-dht-driver.c */