2 This file is part of GNUnet.
3 (C) 2009 Christian Grothoff (and other contributing authors)
5 GNUnet is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published
7 by the Free Software Foundation; either version 3, or (at your
8 option) any later version.
10 GNUnet is distributed in the hope that it will be useful, but
11 WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with GNUnet; see the file COPYING. If not, write to the
17 Free Software Foundation, Inc., 59 Temple Place - Suite 330,
18 Boston, MA 02111-1307, USA.
21 * @file dht/gnunet-dht-driver.c
22 * @brief Driver for setting up a group of gnunet peers and
23 * then issuing GETS and PUTS on the DHT. Coarse results
24 * are reported, fine grained results (if requested) are
25 * logged to a (mysql) database, or to file.
26 * @author Nathan Evans (who to blame)
29 #ifndef HAVE_MALICIOUS
32 #include "gnunet_testing_lib.h"
33 #include "gnunet_core_service.h"
34 #include "gnunet_dht_service.h"
39 #define VERBOSE GNUNET_NO
41 /* Timeout for entire driver to run */
42 #define DEFAULT_TIMEOUT GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MINUTES, 5)
44 /* Timeout for waiting for (individual) replies to get requests */
45 #define DEFAULT_GET_TIMEOUT GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 10)
47 #define DEFAULT_TOPOLOGY_CAPTURE_TIMEOUT GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 90)
49 /* Timeout for waiting for gets to be sent to the service */
50 #define DEFAULT_GET_DELAY GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 10)
52 /* Timeout for waiting for puts to be sent to the service */
53 #define DEFAULT_PUT_DELAY GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 10)
55 /* Time to allow a find peer request to take */
56 #define DEFAULT_FIND_PEER_DELAY GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 40)
58 /* Time to wait for all peers disconnected due to to churn to actually be removed from system */
59 #define DEFAULT_PEER_DISCONNECT_TIMEOUT GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MINUTES, 5)
61 #define DEFAULT_SECONDS_PER_PEER_START GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 45)
63 #define DEFAULT_TEST_DATA_SIZE 8
65 #define DEFAULT_BUCKET_SIZE 4
67 #define FIND_PEER_THRESHOLD 1
69 /* If more than this many peers are added, slow down sending */
70 #define MAX_FIND_PEER_CUTOFF 2000
72 /* If less than this many peers are added, speed up sending */
73 #define MIN_FIND_PEER_CUTOFF 500
75 /* How often (in seconds) to print out connection information */
76 #define CONN_UPDATE_DURATION 10
78 #define DEFAULT_MAX_OUTSTANDING_PUTS 10
80 #define DEFAULT_MAX_OUTSTANDING_FIND_PEERS 64
82 #define DEFAULT_FIND_PEER_OFFSET GNUNET_TIME_relative_divide (DEFAULT_FIND_PEER_DELAY, DEFAULT_MAX_OUTSTANDING_FIND_PEERS)
84 #define DEFAULT_MAX_OUTSTANDING_GETS 10
86 #define DEFAULT_CONNECT_TIMEOUT 60
88 #define DEFAULT_TOPOLOGY_TIMEOUT GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MINUTES, 8)
90 #define DEFAULT_RECONNECT_ATTEMPTS 8
93 * Default frequency for sending malicious get messages
95 #define DEFAULT_MALICIOUS_GET_FREQUENCY GNUNET_TIME_UNIT_SECONDS
98 * Default frequency for sending malicious put messages
100 #define DEFAULT_MALICIOUS_PUT_FREQUENCY GNUNET_TIME_UNIT_SECONDS
104 struct MaliciousContext
107 * Handle to DHT service (via the API)
109 struct GNUNET_DHT_Handle *dht_handle;
112 * Handle to the peer daemon
114 struct GNUNET_TESTING_Daemon *daemon;
117 * Task for disconnecting DHT handles
119 GNUNET_SCHEDULER_TaskIdentifier disconnect_task;
122 * What type of malicious to set this peer to.
129 /* This is a linked list */
130 struct TestFindPeer *next;
132 /* Handle to the bigger context */
133 struct FindPeerContext *find_peer_context;
136 * Handle to the peer's DHT service (via the API)
138 struct GNUNET_DHT_Handle *dht_handle;
141 * Handle to the peer daemon
143 struct GNUNET_TESTING_Daemon *daemon;
146 * Task for disconnecting DHT handles
148 GNUNET_SCHEDULER_TaskIdentifier disconnect_task;
151 struct TestPutContext
153 /* This is a linked list */
154 struct TestPutContext *next;
157 * Handle to the first peers DHT service (via the API)
159 struct GNUNET_DHT_Handle *dht_handle;
162 * Handle to the PUT peer daemon
164 struct GNUNET_TESTING_Daemon *daemon;
167 * Identifier for this PUT
172 * Task for disconnecting DHT handles
174 GNUNET_SCHEDULER_TaskIdentifier disconnect_task;
177 struct TestGetContext
179 /* This is a linked list */
180 struct TestGetContext *next;
183 * Handle to the first peers DHT service (via the API)
185 struct GNUNET_DHT_Handle *dht_handle;
188 * Handle for the DHT get request
190 struct GNUNET_DHT_GetHandle *get_handle;
193 * Handle to the GET peer daemon
195 struct GNUNET_TESTING_Daemon *daemon;
198 * Identifier for this GET
203 * Task for disconnecting DHT handles (and stopping GET)
205 GNUNET_SCHEDULER_TaskIdentifier disconnect_task;
208 * Whether or not this request has been fulfilled already.
214 * Simple struct to keep track of progress, and print a
215 * nice little percentage meter for long running tasks.
225 unsigned int completed;
229 char *startup_string;
233 * Linked list of information for populating statistics
234 * before ending trial.
236 struct StatisticsIteratorContext
238 const struct GNUNET_PeerIdentity *peer;
239 unsigned int stat_routes;
240 unsigned int stat_route_forwards;
241 unsigned int stat_results;
242 unsigned int stat_results_to_client;
243 unsigned int stat_result_forwards;
244 unsigned int stat_gets;
245 unsigned int stat_puts;
246 unsigned int stat_puts_inserted;
247 unsigned int stat_find_peer;
248 unsigned int stat_find_peer_start;
249 unsigned int stat_get_start;
250 unsigned int stat_put_start;
251 unsigned int stat_find_peer_reply;
252 unsigned int stat_get_reply;
253 unsigned int stat_find_peer_answer;
254 unsigned int stat_get_response_start;
258 * Context for getting a topology, logging it, and continuing
259 * on with some next operation.
261 struct TopologyIteratorContext
263 unsigned int total_iterations;
264 unsigned int current_iteration;
265 unsigned int total_connections;
266 unsigned int total_peers;
267 struct GNUNET_CONTAINER_MultiHashMap *peers_seen;
268 struct GNUNET_PeerIdentity *peer;
269 GNUNET_SCHEDULER_Task cont;
271 struct GNUNET_TIME_Relative timeout;
277 /** Node in the heap */
278 struct GNUNET_CONTAINER_HeapNode *heap_node;
280 /** Peer the count refers to */
281 struct GNUNET_PeerIdentity peer_id;
283 /** Count of connections this peer has */
288 * Context for sending out find peer requests.
290 struct FindPeerContext
293 * How long to send find peer requests, once the settle time
294 * is over don't send any more out!
296 struct GNUNET_TIME_Absolute endtime;
299 * Number of connections in the current topology
300 * (after this round of find peer requests has ended).
302 unsigned int current_peers;
305 * Number of connections in the current topology
306 * (before this round of find peer requests started).
308 unsigned int previous_peers;
311 * Number of find peer requests we have currently
314 unsigned int outstanding;
317 * Number of find peer requests to send in this round.
322 * Number of find peer requests sent last time around.
324 unsigned int last_sent;
327 * Hashmap of peers in the current topology, value
328 * is a PeerCount, with the number of connections
331 struct GNUNET_CONTAINER_MultiHashMap *peer_hash;
334 * Min heap which orders values in the peer_hash for
337 struct GNUNET_CONTAINER_Heap *peer_min_heap;
340 * Callback for counting the peers in the current topology.
342 GNUNET_TESTING_NotifyTopology count_peers_cb;
348 * Next full round (puts + gets).
353 * Next round of gets.
358 * Next round of puts.
363 * Next round of churn.
373 * How long to try to connect two peers.
375 struct GNUNET_TIME_Relative connect_timeout;
378 * How many times to re-attempt connecting two peers.
380 static unsigned long long connect_attempts;
383 * Timeout to let all GET requests happen.
385 static struct GNUNET_TIME_Relative all_get_timeout;
390 static struct GNUNET_TIME_Relative get_timeout;
393 * Time to allow for GET requests to be sent to service.
395 static struct GNUNET_TIME_Relative get_delay;
398 * Time to allow for PUT requests to be sent to service.
400 static struct GNUNET_TIME_Relative put_delay;
403 * Delay between sending find peer requests (if
404 * handled by the driver, no effect if sent by service).
406 static struct GNUNET_TIME_Relative find_peer_delay;
409 * Time between find peer requests
410 * (find_peer_delay / max_outstanding_find_peer)
412 static struct GNUNET_TIME_Relative find_peer_offset;
415 * How many seconds to allow each peer to start.
417 static struct GNUNET_TIME_Relative seconds_per_peer_start;
420 * At what time did we start the connection process.
422 static struct GNUNET_TIME_Absolute connect_start_time;
425 * What was the last time we updated connection/second information.
427 static struct GNUNET_TIME_Absolute connect_last_time;
430 * Boolean value, should the driver issue find peer requests
431 * (GNUNET_YES) or should it be left to the service (GNUNET_NO)
433 static unsigned int do_find_peer;
436 * Boolean value, should replication be done by the dht
437 * service (GNUNET_YES) or by the driver (GNUNET_NO)
439 static unsigned int in_dht_replication;
442 * Size of test data to insert/retrieve during testing.
444 static unsigned long long test_data_size = DEFAULT_TEST_DATA_SIZE;
447 * Maximum number of concurrent connections to peers.
449 static unsigned long long max_outstanding_connections;
452 * Maximum number of concurrent PUT requests.
454 static unsigned long long max_outstanding_puts = DEFAULT_MAX_OUTSTANDING_PUTS;
457 * Maximum number of concurrent GET requests.
459 static unsigned long long max_outstanding_gets = DEFAULT_MAX_OUTSTANDING_GETS;
462 * Number of nodes issuing malicious GET messages.
464 static unsigned long long malicious_getters;
467 * Maximum number of concurrent find peer messages being sent.
469 static unsigned long long max_outstanding_find_peers;
472 * Number of nodes issuing malicious PUT messages.
474 static unsigned long long malicious_putters;
477 * Time (in seconds) to delay between rounds.
479 static unsigned long long round_delay;
482 * How many malicious droppers to seed in the network.
484 static unsigned long long malicious_droppers;
487 * Bloom filter to restrict malicious nodes chosen.
489 struct GNUNET_CONTAINER_BloomFilter *malicious_bloom;
492 * Whether malicious droppers should be chosen based on proximity to a key.
494 static int malicious_sybil;
497 * Target for the malicious sybil nodes (choose the closest to this key).
499 static GNUNET_HashCode sybil_target;
502 * How often to send malicious GET messages.
504 static struct GNUNET_TIME_Relative malicious_get_frequency;
507 * How often to send malicious PUT messages.
509 static struct GNUNET_TIME_Relative malicious_put_frequency;
512 * How long to send find peer requests.
514 static unsigned long long settle_time;
517 * Handle to the dhtlog service.
519 static struct GNUNET_DHTLOG_Handle *dhtlog_handle;
522 * Replication value for GET requests.
524 static unsigned long long get_replication;
527 * Replication value for PUT requests.
529 static unsigned long long put_replication;
532 * If GNUNET_YES, insert data at the same peers every time.
533 * Otherwise, choose a new random peer to insert at each time.
535 static unsigned int replicate_same;
538 * If GNUNET_YES, issue GET requests at the same peers every time.
539 * Otherwise, choose a new random peer/data combination to search
542 static unsigned int get_from_same;
545 * Should malicious peers be set after allowing for settle time?
546 * Default is to set them malicious after initial connection setup.
548 static unsigned int malicious_after_settle;
551 * Number of rounds for testing (PUTS + GETS)
553 static unsigned long long total_rounds;
556 * Target number of connections (will stop sending find peer
557 * messages when this number is exceeded)
559 static unsigned long long target_total_connections;
562 * Number of rounds already run
564 static unsigned int rounds_finished;
567 * Number of rounds of churn to read from the file (first line, should be a single number).
569 static unsigned int churn_rounds;
572 * Current round we are in for churn, tells us how many peers to connect/disconnect.
574 static unsigned int current_churn_round;
577 * Number of times to churn per round
579 static unsigned long long churns_per_round;
582 * Array of churn values.
584 static unsigned int *churn_array;
587 * Hash map of stats contexts.
589 static struct GNUNET_CONTAINER_MultiHashMap *stats_map;
592 * LL of malicious settings.
594 struct MaliciousContext *all_malicious;
597 * List of GETS to perform
599 struct TestGetContext *all_gets;
602 * List of PUTS to perform
604 struct TestPutContext *all_puts;
607 * Directory to store temporary data in, defined in config file
609 static char *test_directory;
612 * Variable used to store the number of connections we should wait for.
614 static unsigned int expected_connections;
617 * Variable used to keep track of how many peers aren't yet started.
619 static unsigned long long peers_left;
622 * Handle to the set of all peers run for this test.
624 static struct GNUNET_TESTING_PeerGroup *pg;
628 * Global config handle.
630 static const struct GNUNET_CONFIGURATION_Handle *config;
633 * Total number of peers to run, set based on config file.
635 static unsigned long long num_peers;
638 * Total number of items to insert.
640 static unsigned long long num_puts;
643 * How many puts do we currently have in flight?
645 static unsigned long long outstanding_puts;
648 * How many puts are done?
650 static unsigned long long puts_completed;
653 * Total number of items to attempt to get.
655 static unsigned long long num_gets;
658 * How many puts do we currently have in flight?
660 static unsigned long long outstanding_gets;
663 * How many gets are done?
665 static unsigned long long gets_completed;
668 * How many gets failed?
670 static unsigned long long gets_failed;
673 * How many malicious control messages do
674 * we currently have in flight?
676 static unsigned long long outstanding_malicious;
679 * How many set malicious peers are done?
681 static unsigned long long malicious_completed;
684 * Global used to count how many connections we have currently
685 * been notified about (how many times has topology_callback been called
688 static unsigned int total_connections;
691 * Previous connections, for counting new connections during some duration.
693 static unsigned int previous_connections;
696 * Global used to count how many failed connections we have
697 * been notified about (how many times has topology_callback
698 * been called with failure?)
700 static unsigned int failed_connections;
703 * If GNUNET_YES, only log PUT/GET round data to mysql, otherwise
704 * log everything (including each dht service logging).
706 static unsigned int dhtlog_minimal;
708 /* Task handle to use to schedule shutdown if something goes wrong */
709 GNUNET_SCHEDULER_TaskIdentifier die_task;
711 static char *blacklist_transports;
713 static enum GNUNET_TESTING_Topology topology;
715 static enum GNUNET_TESTING_Topology blacklist_topology = GNUNET_TESTING_TOPOLOGY_NONE; /* Don't do any blacklisting */
717 static enum GNUNET_TESTING_Topology connect_topology = GNUNET_TESTING_TOPOLOGY_NONE; /* NONE actually means connect all allowed peers */
719 static enum GNUNET_TESTING_TopologyOption connect_topology_option = GNUNET_TESTING_TOPOLOGY_OPTION_ALL;
721 static double connect_topology_option_modifier = 0.0;
723 static struct ProgressMeter *hostkey_meter;
725 static struct ProgressMeter *peer_start_meter;
727 static struct ProgressMeter *peer_connect_meter;
729 static struct ProgressMeter *put_meter;
731 static struct ProgressMeter *get_meter;
733 static GNUNET_HashCode *known_keys;
735 /* Global return value (0 for success, anything else for failure) */
739 * Create a meter to keep track of the progress of some task.
741 * @param total the total number of items to complete
742 * @param start_string a string to prefix the meter with (if printing)
743 * @param print GNUNET_YES to print the meter, GNUNET_NO to count
746 * @return the progress meter
748 static struct ProgressMeter *
749 create_meter(unsigned int total, char * start_string, int print)
751 struct ProgressMeter *ret;
752 ret = GNUNET_malloc(sizeof(struct ProgressMeter));
755 ret->modnum = total / 4;
756 ret->dotnum = (total / 50) + 1;
757 if (start_string != NULL)
758 ret->startup_string = GNUNET_strdup(start_string);
760 ret->startup_string = GNUNET_strdup("");
766 * Update progress meter (increment by one).
768 * @param meter the meter to update and print info for
770 * @return GNUNET_YES if called the total requested,
771 * GNUNET_NO if more items expected
774 update_meter(struct ProgressMeter *meter)
776 if (meter->print == GNUNET_YES)
778 if (meter->completed % meter->modnum == 0)
780 if (meter->completed == 0)
782 fprintf(stdout, "%sProgress: [0%%", meter->startup_string);
785 fprintf(stdout, "%d%%", (int)(((float)meter->completed / meter->total) * 100));
787 else if (meter->completed % meter->dotnum == 0)
788 fprintf(stdout, ".");
790 if (meter->completed + 1 == meter->total)
791 fprintf(stdout, "%d%%]\n", 100);
796 if (meter->completed == meter->total)
802 * Reset progress meter.
804 * @param meter the meter to reset
806 * @return GNUNET_YES if meter reset,
807 * GNUNET_SYSERR on error
810 reset_meter(struct ProgressMeter *meter)
813 return GNUNET_SYSERR;
815 meter->completed = 0;
820 * Release resources for meter
822 * @param meter the meter to free
825 free_meter(struct ProgressMeter *meter)
827 GNUNET_free_non_null (meter->startup_string);
832 * Check whether peers successfully shut down.
835 shutdown_callback (void *cls,
846 * Task to release DHT handles for PUT
849 put_disconnect_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
851 struct TestPutContext *test_put = cls;
852 test_put->disconnect_task = GNUNET_SCHEDULER_NO_TASK;
853 GNUNET_DHT_disconnect(test_put->dht_handle);
854 test_put->dht_handle = NULL;
855 if (replicate_same == GNUNET_NO)
856 test_put->daemon = GNUNET_TESTING_daemon_get(pg, GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers));
860 * Function scheduled to be run on the successful completion of this
864 finish_testing (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
866 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Ending test normally!\n", (char *)cls);
867 GNUNET_assert (pg != NULL);
868 struct TestPutContext *test_put = all_puts;
869 struct TestGetContext *test_get = all_gets;
871 while (test_put != NULL)
873 if (test_put->disconnect_task != GNUNET_SCHEDULER_NO_TASK)
874 GNUNET_SCHEDULER_cancel(test_put->disconnect_task);
875 if (test_put->dht_handle != NULL)
876 GNUNET_DHT_disconnect(test_put->dht_handle);
877 test_put = test_put->next;
880 while (test_get != NULL)
882 if (test_get->disconnect_task != GNUNET_SCHEDULER_NO_TASK)
883 GNUNET_SCHEDULER_cancel(test_get->disconnect_task);
884 if (test_get->get_handle != NULL)
885 GNUNET_DHT_get_stop(test_get->get_handle);
886 if (test_get->dht_handle != NULL)
887 GNUNET_DHT_disconnect(test_get->dht_handle);
888 test_get = test_get->next;
891 GNUNET_TESTING_daemons_stop (pg, DEFAULT_TIMEOUT, &shutdown_callback, NULL);
893 if (dhtlog_handle != NULL)
895 fprintf(stderr, "Update trial endtime\n");
896 dhtlog_handle->update_trial (gets_completed);
897 GNUNET_DHTLOG_disconnect(dhtlog_handle);
898 dhtlog_handle = NULL;
901 if (hostkey_meter != NULL)
902 free_meter(hostkey_meter);
903 if (peer_start_meter != NULL)
904 free_meter(peer_start_meter);
905 if (peer_connect_meter != NULL)
906 free_meter(peer_connect_meter);
907 if (put_meter != NULL)
908 free_meter(put_meter);
909 if (get_meter != NULL)
910 free_meter(get_meter);
916 * Callback for iterating over all the peer connections of a peer group.
919 log_topology_cb (void *cls,
920 const struct GNUNET_PeerIdentity *first,
921 const struct GNUNET_PeerIdentity *second,
924 struct TopologyIteratorContext *topo_ctx = cls;
925 if ((first != NULL) && (second != NULL))
927 if ((topo_ctx->peers_seen != NULL) && (GNUNET_NO == GNUNET_CONTAINER_multihashmap_contains(topo_ctx->peers_seen, &first->hashPubKey)))
929 GNUNET_CONTAINER_multihashmap_put(topo_ctx->peers_seen, &first->hashPubKey, NULL, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
930 topo_ctx->total_peers++;
932 topo_ctx->total_connections++;
933 if ((GNUNET_NO == dhtlog_minimal) && (dhtlog_handle != NULL))
934 dhtlog_handle->insert_extended_topology(first, second);
938 GNUNET_assert(dhtlog_handle != NULL);
939 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);
940 dhtlog_handle->update_topology(topo_ctx->total_connections);
941 if (topo_ctx->cont != NULL)
942 GNUNET_SCHEDULER_add_now (topo_ctx->cont, topo_ctx->cls);
943 if (topo_ctx->peers_seen != NULL)
944 GNUNET_CONTAINER_multihashmap_destroy(topo_ctx->peers_seen);
945 GNUNET_free(topo_ctx);
950 * Iterator over hash map entries.
952 * @param cls closure - always NULL
953 * @param key current key code
954 * @param value value in the hash map, a stats context
955 * @return GNUNET_YES if we should continue to
959 static int stats_iterate (void *cls,
960 const GNUNET_HashCode * key,
963 struct StatisticsIteratorContext *stats_ctx;
967 dhtlog_handle->insert_stat(stats_ctx->peer, stats_ctx->stat_routes, stats_ctx->stat_route_forwards, stats_ctx->stat_results,
968 stats_ctx->stat_results_to_client, stats_ctx->stat_result_forwards, stats_ctx->stat_gets,
969 stats_ctx->stat_puts, stats_ctx->stat_puts_inserted, stats_ctx->stat_find_peer,
970 stats_ctx->stat_find_peer_start, stats_ctx->stat_get_start, stats_ctx->stat_put_start,
971 stats_ctx->stat_find_peer_reply, stats_ctx->stat_get_reply, stats_ctx->stat_find_peer_answer,
972 stats_ctx->stat_get_response_start);
973 GNUNET_free(stats_ctx);
978 stats_finished (void *cls, int result)
980 fprintf(stderr, "Finished getting all peers statistics, iterating!\n");
981 GNUNET_CONTAINER_multihashmap_iterate(stats_map, &stats_iterate, NULL);
982 GNUNET_CONTAINER_multihashmap_destroy(stats_map);
983 GNUNET_SCHEDULER_add_now (&finish_testing, NULL);
987 * Callback function to process statistic values.
990 * @param peer the peer the statistics belong to
991 * @param subsystem name of subsystem that created the statistic
992 * @param name the name of the datum
993 * @param value the current value
994 * @param is_persistent GNUNET_YES if the value is persistent, GNUNET_NO if not
995 * @return GNUNET_OK to continue, GNUNET_SYSERR to abort iteration
997 static int stats_handle (void *cls,
998 const struct GNUNET_PeerIdentity *peer,
999 const char *subsystem,
1004 struct StatisticsIteratorContext *stats_ctx;
1006 if (dhtlog_handle != NULL)
1007 dhtlog_handle->add_generic_stat(peer, name, subsystem, value);
1008 if (GNUNET_CONTAINER_multihashmap_contains(stats_map, &peer->hashPubKey))
1010 stats_ctx = GNUNET_CONTAINER_multihashmap_get(stats_map, &peer->hashPubKey);
1014 stats_ctx = GNUNET_malloc(sizeof(struct StatisticsIteratorContext));
1015 stats_ctx->peer = peer;
1016 GNUNET_CONTAINER_multihashmap_put(stats_map, &peer->hashPubKey, stats_ctx, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
1018 GNUNET_assert(stats_ctx != NULL);
1020 if (strcmp(name, STAT_ROUTES) == 0)
1021 stats_ctx->stat_routes = value;
1022 else if (strcmp(name, STAT_ROUTE_FORWARDS) == 0)
1023 stats_ctx->stat_route_forwards = value;
1024 else if (strcmp(name, STAT_RESULTS) == 0)
1025 stats_ctx->stat_results = value;
1026 else if (strcmp(name, STAT_RESULTS_TO_CLIENT) == 0)
1027 stats_ctx->stat_results_to_client = value;
1028 else if (strcmp(name, STAT_RESULT_FORWARDS) == 0)
1029 stats_ctx->stat_result_forwards = value;
1030 else if (strcmp(name, STAT_GETS) == 0)
1031 stats_ctx->stat_gets = value;
1032 else if (strcmp(name, STAT_PUTS) == 0)
1033 stats_ctx->stat_puts = value;
1034 else if (strcmp(name, STAT_PUTS_INSERTED) == 0)
1035 stats_ctx->stat_puts_inserted = value;
1036 else if (strcmp(name, STAT_FIND_PEER) == 0)
1037 stats_ctx->stat_find_peer = value;
1038 else if (strcmp(name, STAT_FIND_PEER_START) == 0)
1039 stats_ctx->stat_find_peer_start = value;
1040 else if (strcmp(name, STAT_GET_START) == 0)
1041 stats_ctx->stat_get_start = value;
1042 else if (strcmp(name, STAT_PUT_START) == 0)
1043 stats_ctx->stat_put_start = value;
1044 else if (strcmp(name, STAT_FIND_PEER_REPLY) == 0)
1045 stats_ctx->stat_find_peer_reply = value;
1046 else if (strcmp(name, STAT_GET_REPLY) == 0)
1047 stats_ctx->stat_get_reply = value;
1048 else if (strcmp(name, STAT_FIND_PEER_ANSWER) == 0)
1049 stats_ctx->stat_find_peer_answer = value;
1050 else if (strcmp(name, STAT_GET_RESPONSE_START) == 0)
1051 stats_ctx->stat_get_response_start = value;
1057 * Connect to statistics service for each peer and get the appropriate
1058 * dht statistics for safe keeping.
1061 log_dht_statistics (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1063 stats_map = GNUNET_CONTAINER_multihashmap_create(num_peers);
1064 fprintf(stderr, "Starting statistics logging\n");
1065 GNUNET_TESTING_get_statistics(pg, &stats_finished, &stats_handle, NULL);
1070 * Connect to all peers in the peer group and iterate over their
1074 capture_current_topology (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1076 struct TopologyIteratorContext *topo_ctx = cls;
1077 dhtlog_handle->insert_topology(0);
1078 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Called capture_current_topology\n");
1079 GNUNET_TESTING_get_topology (pg, &log_topology_cb, topo_ctx);
1084 * Check if the get_handle is being used, if so stop the request. Either
1085 * way, schedule the end_badly_cont function which actually shuts down the
1089 end_badly (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1091 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Failing test with error: `%s'!\n", (char *)cls);
1093 struct TestPutContext *test_put = all_puts;
1094 struct TestGetContext *test_get = all_gets;
1096 while (test_put != NULL)
1098 if (test_put->disconnect_task != GNUNET_SCHEDULER_NO_TASK)
1099 GNUNET_SCHEDULER_cancel(test_put->disconnect_task);
1100 if (test_put->dht_handle != NULL)
1101 GNUNET_DHT_disconnect(test_put->dht_handle);
1102 test_put = test_put->next;
1105 while (test_get != NULL)
1107 if (test_get->disconnect_task != GNUNET_SCHEDULER_NO_TASK)
1108 GNUNET_SCHEDULER_cancel(test_get->disconnect_task);
1109 if (test_get->get_handle != NULL)
1110 GNUNET_DHT_get_stop(test_get->get_handle);
1111 if (test_get->dht_handle != NULL)
1112 GNUNET_DHT_disconnect(test_get->dht_handle);
1113 test_get = test_get->next;
1116 GNUNET_TESTING_daemons_stop (pg, DEFAULT_TIMEOUT, &shutdown_callback, NULL);
1118 if (dhtlog_handle != NULL)
1120 fprintf(stderr, "Update trial endtime\n");
1121 dhtlog_handle->update_trial (gets_completed);
1122 GNUNET_DHTLOG_disconnect(dhtlog_handle);
1123 dhtlog_handle = NULL;
1126 if (hostkey_meter != NULL)
1127 free_meter(hostkey_meter);
1128 if (peer_start_meter != NULL)
1129 free_meter(peer_start_meter);
1130 if (peer_connect_meter != NULL)
1131 free_meter(peer_connect_meter);
1132 if (put_meter != NULL)
1133 free_meter(put_meter);
1134 if (get_meter != NULL)
1135 free_meter(get_meter);
1141 * Forward declaration.
1144 do_put (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc);
1147 * Forward declaration.
1150 do_get (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc);
1153 * Iterator over hash map entries.
1155 * @param cls closure
1156 * @param key current key code
1157 * @param value value in the hash map
1158 * @return GNUNET_YES if we should continue to
1162 static int remove_peer_count (void *cls,
1163 const GNUNET_HashCode * key,
1166 struct FindPeerContext *find_peer_ctx = cls;
1167 struct PeerCount *peer_count = value;
1168 GNUNET_CONTAINER_heap_remove_node(find_peer_ctx->peer_min_heap, peer_count->heap_node);
1169 GNUNET_free(peer_count);
1175 * Connect to all peers in the peer group and iterate over their
1179 count_new_peers (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1181 struct FindPeerContext *find_peer_context = cls;
1182 find_peer_context->previous_peers = find_peer_context->current_peers;
1183 find_peer_context->current_peers = 0;
1184 GNUNET_TESTING_get_topology (pg, find_peer_context->count_peers_cb, find_peer_context);
1188 decrement_find_peers (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1190 struct TestFindPeer *test_find_peer = cls;
1191 GNUNET_assert(test_find_peer->find_peer_context->outstanding > 0);
1192 test_find_peer->find_peer_context->outstanding--;
1193 test_find_peer->find_peer_context->total--;
1194 if (0 == test_find_peer->find_peer_context->total)
1196 GNUNET_SCHEDULER_add_now(&count_new_peers, test_find_peer->find_peer_context);
1198 GNUNET_free(test_find_peer);
1202 * A find peer request has been sent to the server, now we will schedule a task
1203 * to wait the appropriate time to allow the request to go out and back.
1205 * @param cls closure - a TestFindPeer struct
1206 * @param tc context the task is being called with
1209 handle_find_peer_sent (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1211 struct TestFindPeer *test_find_peer = cls;
1213 GNUNET_DHT_disconnect(test_find_peer->dht_handle);
1214 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_divide(find_peer_delay, 2), &decrement_find_peers, test_find_peer);
1219 send_find_peer_request (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1221 struct TestFindPeer *test_find_peer = cls;
1223 if (test_find_peer->find_peer_context->outstanding > max_outstanding_find_peers)
1225 GNUNET_SCHEDULER_add_delayed(find_peer_offset, &send_find_peer_request, test_find_peer);
1229 test_find_peer->find_peer_context->outstanding++;
1230 if (GNUNET_TIME_absolute_get_remaining(test_find_peer->find_peer_context->endtime).rel_value == 0)
1232 GNUNET_SCHEDULER_add_now(&decrement_find_peers, test_find_peer);
1236 test_find_peer->dht_handle = GNUNET_DHT_connect(test_find_peer->daemon->cfg, 1);
1237 GNUNET_assert(test_find_peer->dht_handle != NULL);
1238 GNUNET_DHT_find_peers (test_find_peer->dht_handle,
1239 &handle_find_peer_sent, test_find_peer);
1244 * Add a connection to the find_peer_context given. This may
1245 * be complete overkill, but allows us to choose the peers with
1246 * the least connections to initiate find peer requests from.
1248 static void add_new_connection(struct FindPeerContext *find_peer_context,
1249 const struct GNUNET_PeerIdentity *first,
1250 const struct GNUNET_PeerIdentity *second)
1252 struct PeerCount *first_count;
1253 struct PeerCount *second_count;
1255 if (GNUNET_CONTAINER_multihashmap_contains(find_peer_context->peer_hash, &first->hashPubKey))
1257 first_count = GNUNET_CONTAINER_multihashmap_get(find_peer_context->peer_hash, &first->hashPubKey);
1258 GNUNET_assert(first_count != NULL);
1259 first_count->count++;
1260 GNUNET_CONTAINER_heap_update_cost(find_peer_context->peer_min_heap, first_count->heap_node, first_count->count);
1264 first_count = GNUNET_malloc(sizeof(struct PeerCount));
1265 first_count->count = 1;
1266 memcpy(&first_count->peer_id, first, sizeof(struct GNUNET_PeerIdentity));
1267 first_count->heap_node = GNUNET_CONTAINER_heap_insert(find_peer_context->peer_min_heap, first_count, first_count->count);
1268 GNUNET_CONTAINER_multihashmap_put(find_peer_context->peer_hash, &first->hashPubKey, first_count, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
1271 if (GNUNET_CONTAINER_multihashmap_contains(find_peer_context->peer_hash, &second->hashPubKey))
1273 second_count = GNUNET_CONTAINER_multihashmap_get(find_peer_context->peer_hash, &second->hashPubKey);
1274 GNUNET_assert(second_count != NULL);
1275 second_count->count++;
1276 GNUNET_CONTAINER_heap_update_cost(find_peer_context->peer_min_heap, second_count->heap_node, second_count->count);
1280 second_count = GNUNET_malloc(sizeof(struct PeerCount));
1281 second_count->count = 1;
1282 memcpy(&second_count->peer_id, second, sizeof(struct GNUNET_PeerIdentity));
1283 second_count->heap_node = GNUNET_CONTAINER_heap_insert(find_peer_context->peer_min_heap, second_count, second_count->count);
1284 GNUNET_CONTAINER_multihashmap_put(find_peer_context->peer_hash, &second->hashPubKey, second_count, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
1290 * Iterate over min heap of connections per peer. For any
1291 * peer that has 0 connections, attempt to connect them to
1294 * @param cls closure a struct FindPeerContext
1295 * @param node internal node of the heap
1296 * @param element value stored, a struct PeerCount
1297 * @param cost cost associated with the node
1298 * @return GNUNET_YES if we should continue to iterate,
1301 static int iterate_min_heap_peers (void *cls,
1302 struct GNUNET_CONTAINER_HeapNode *node,
1304 GNUNET_CONTAINER_HeapCostType cost)
1306 struct FindPeerContext *find_peer_context = cls;
1307 struct PeerCount *peer_count = element;
1308 struct GNUNET_TESTING_Daemon *d1;
1309 struct GNUNET_TESTING_Daemon *d2;
1310 struct GNUNET_TIME_Relative timeout;
1313 d1 = GNUNET_TESTING_daemon_get_by_id (pg, &peer_count->peer_id);
1314 GNUNET_assert(d1 != NULL);
1316 while ((d2 == d1) || (GNUNET_YES != GNUNET_TESTING_daemon_running(d2)))
1318 d2 = GNUNET_TESTING_daemon_get(pg, GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers));
1319 GNUNET_assert(d2 != NULL);
1322 /** Just try to connect the peers, don't worry about callbacks, etc. **/
1323 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);
1324 timeout = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, DEFAULT_CONNECT_TIMEOUT);
1325 if (GNUNET_TIME_relative_to_absolute(timeout).abs_value > find_peer_context->endtime.abs_value)
1327 timeout = GNUNET_TIME_absolute_get_remaining(find_peer_context->endtime);
1329 GNUNET_TESTING_daemons_connect(d1, d2, timeout, DEFAULT_RECONNECT_ATTEMPTS, NULL, NULL);
1331 if (GNUNET_TIME_absolute_get_remaining(find_peer_context->endtime).rel_value > 0)
1338 * Forward declaration.
1341 schedule_churn_find_peer_requests (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc);
1344 * Callback for iterating over all the peer connections of a peer group.
1345 * Used after we have churned on some peers to find which ones have zero
1346 * connections so we can make them issue find peer requests.
1349 count_peers_churn_cb (void *cls,
1350 const struct GNUNET_PeerIdentity *first,
1351 const struct GNUNET_PeerIdentity *second,
1354 struct FindPeerContext *find_peer_context = cls;
1355 struct TopologyIteratorContext *topo_ctx;
1356 struct PeerCount *peer_count;
1358 if ((first != NULL) && (second != NULL))
1360 add_new_connection(find_peer_context, first, second);
1361 find_peer_context->current_peers++;
1365 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Peer count finished (%u connections)\n",
1366 find_peer_context->current_peers);
1367 peer_count = GNUNET_CONTAINER_heap_peek(find_peer_context->peer_min_heap);
1368 GNUNET_assert(peer_count != NULL);
1369 /* 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. */
1370 /* NO they won't, because we have disabled peerinfo writing to disk (remember?) so we WILL have to give them new connections */
1371 /* Best course of action: have DHT automatically try to add peers from peerinfo on startup. This way IF peerinfo writes to file
1372 * then some peers will end up connected.
1374 * Also, find any peers that have zero connections here and set up a task to choose at random another peer in the network to
1375 * 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
1376 * until they get a peer.
1378 /* However, they won't automatically be connected to any of their previous peers... How can we handle that? */
1379 /* So now we have choices: do we want them to come back with all their connections? Probably not, but it solves this mess. */
1381 /* Second problem, which is still a problem, is that a FIND_PEER request won't work when a peer has no connections */
1384 * Okay, so here's how this *should* work now.
1386 * 1. We check the min heap for any peers that have 0 connections.
1387 * a. If any are found, we iterate over the heap and just randomly
1388 * choose another peer and ask testing to please connect the two.
1389 * This takes care of the case that a peer just randomly joins the
1390 * network. However, if there are strict topology restrictions
1391 * (imagine a ring) choosing randomly most likely won't help.
1392 * We make sure the connection attempt doesn't take longer than
1393 * the total timeout, but don't care too much about the result.
1394 * b. After that, we still schedule the find peer requests (concurrently
1395 * with the connect attempts most likely). This handles the case
1396 * that the DHT iterates over peerinfo and just needs to try to send
1397 * a message to get connected. This should handle the case that the
1398 * topology is very strict.
1400 * 2. If all peers have > 0 connections, we still send find peer requests
1401 * as long as possible (until timeout is reached) to help out those
1402 * peers that were newly churned and need more connections. This is because
1403 * once all new peers have established a single connection, they won't be
1406 * 3. Once we reach the timeout, we can do no more. We must schedule the
1407 * next iteration of get requests regardless of connections that peers
1408 * may or may not have.
1410 * Caveat: it would be nice to get peers to take data offline with them and
1411 * come back with it (or not) based on the testing framework. The
1412 * same goes for remembering previous connections, but putting either
1413 * into the general testing churn options seems like overkill because
1414 * these are very specialized cases.
1416 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);
1417 if ((peer_count->count == 0) && (GNUNET_TIME_absolute_get_remaining(find_peer_context->endtime).rel_value > 0))
1419 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Found peer with no connections, will choose some peer(s) at random to connect to!\n");
1420 GNUNET_CONTAINER_heap_iterate (find_peer_context->peer_min_heap, &iterate_min_heap_peers, find_peer_context);
1421 GNUNET_SCHEDULER_add_now(&schedule_churn_find_peer_requests, find_peer_context);
1423 else if ((GNUNET_TIME_absolute_get_remaining(find_peer_context->endtime).rel_value > 0) && (find_peer_context->last_sent != 0))
1425 GNUNET_SCHEDULER_add_now(&schedule_churn_find_peer_requests, find_peer_context);
1429 GNUNET_CONTAINER_multihashmap_iterate(find_peer_context->peer_hash, &remove_peer_count, find_peer_context);
1430 GNUNET_CONTAINER_multihashmap_destroy(find_peer_context->peer_hash);
1431 GNUNET_CONTAINER_heap_destroy(find_peer_context->peer_min_heap);
1432 GNUNET_free(find_peer_context);
1433 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Churn round %u of %llu finished, scheduling next GET round.\n", current_churn_round, churn_rounds);
1434 if (dhtlog_handle != NULL)
1436 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
1437 topo_ctx->cont = &do_get;
1438 topo_ctx->cls = all_gets;
1439 topo_ctx->timeout = DEFAULT_GET_TIMEOUT;
1440 topo_ctx->peers_seen = GNUNET_CONTAINER_multihashmap_create(num_peers);
1441 die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_add(GNUNET_TIME_relative_add(DEFAULT_GET_TIMEOUT, all_get_timeout), DEFAULT_TOPOLOGY_CAPTURE_TIMEOUT),
1442 &end_badly, "from do gets (count_peers_churn_cb)");
1443 GNUNET_SCHEDULER_add_now(&capture_current_topology, topo_ctx);
1447 die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_add(GNUNET_TIME_relative_add(DEFAULT_GET_TIMEOUT, all_get_timeout), DEFAULT_TOPOLOGY_CAPTURE_TIMEOUT),
1448 &end_badly, "from do gets (count_peers_churn_cb)");
1449 GNUNET_SCHEDULER_add_now(&do_get, all_gets);
1456 * Set up a single find peer request for each peer in the topology. Do this
1457 * until the settle time is over, limited by the number of outstanding requests
1458 * and the time allowed for each one!
1461 schedule_churn_find_peer_requests (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1463 struct FindPeerContext *find_peer_ctx = cls;
1464 struct TestFindPeer *test_find_peer;
1465 struct PeerCount *peer_count;
1468 if (find_peer_ctx->previous_peers == 0) /* First time, go slowly */
1469 find_peer_ctx->total = 1;
1470 else if (find_peer_ctx->current_peers - find_peer_ctx->previous_peers < MIN_FIND_PEER_CUTOFF)
1471 find_peer_ctx->total = find_peer_ctx->total / 2;
1472 else if (find_peer_ctx->current_peers - find_peer_ctx->previous_peers > MAX_FIND_PEER_CUTOFF) /* Found LOTS of peers, still go slowly */
1473 find_peer_ctx->total = find_peer_ctx->last_sent - (find_peer_ctx->last_sent / 4);
1475 find_peer_ctx->total = find_peer_ctx->last_sent * 4;
1477 if (find_peer_ctx->total > max_outstanding_find_peers)
1478 find_peer_ctx->total = max_outstanding_find_peers;
1480 find_peer_ctx->last_sent = find_peer_ctx->total;
1481 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Sending %u find peer messages (after churn)\n", find_peer_ctx->total);
1483 if (find_peer_ctx->total > 0)
1484 find_peer_offset = GNUNET_TIME_relative_divide(find_peer_delay, find_peer_ctx->total);
1487 find_peer_ctx->previous_peers = find_peer_ctx->current_peers;
1488 find_peer_ctx->current_peers = 0;
1489 GNUNET_TESTING_get_topology (pg, &count_peers_churn_cb, find_peer_ctx);
1493 for (i = 0; i < find_peer_ctx->total; i++)
1495 test_find_peer = GNUNET_malloc(sizeof(struct TestFindPeer));
1496 /* If we have sent requests, choose peers with a low number of connections to send requests from */
1497 peer_count = GNUNET_CONTAINER_heap_remove_root(find_peer_ctx->peer_min_heap);
1498 GNUNET_assert(peer_count != NULL);
1499 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Sending find peer request from peer with %u connections\n", peer_count->count);
1500 GNUNET_CONTAINER_multihashmap_remove(find_peer_ctx->peer_hash, &peer_count->peer_id.hashPubKey, peer_count);
1501 test_find_peer->daemon = GNUNET_TESTING_daemon_get_by_id(pg, &peer_count->peer_id);
1502 GNUNET_assert(test_find_peer->daemon != NULL);
1503 test_find_peer->find_peer_context = find_peer_ctx;
1504 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_multiply(find_peer_offset, i), &send_find_peer_request, test_find_peer);
1507 if ((find_peer_ctx->peer_hash == NULL) && (find_peer_ctx->peer_min_heap == NULL))
1509 find_peer_ctx->peer_hash = GNUNET_CONTAINER_multihashmap_create(num_peers);
1510 find_peer_ctx->peer_min_heap = GNUNET_CONTAINER_heap_create(GNUNET_CONTAINER_HEAP_ORDER_MIN);
1514 GNUNET_CONTAINER_multihashmap_iterate(find_peer_ctx->peer_hash, &remove_peer_count, find_peer_ctx);
1515 GNUNET_CONTAINER_multihashmap_destroy(find_peer_ctx->peer_hash);
1516 find_peer_ctx->peer_hash = GNUNET_CONTAINER_multihashmap_create(num_peers);
1519 GNUNET_assert(0 == GNUNET_CONTAINER_multihashmap_size(find_peer_ctx->peer_hash));
1520 GNUNET_assert(0 == GNUNET_CONTAINER_heap_get_size(find_peer_ctx->peer_min_heap));
1523 static void schedule_churn_get_topology (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1525 struct FindPeerContext *find_peer_context = cls;
1526 GNUNET_TESTING_get_topology (pg, &count_peers_churn_cb, find_peer_context);
1530 * Called when churning of the topology has finished.
1532 * @param cls closure unused
1533 * @param emsg NULL on success, or a printable error on failure
1535 static void churn_complete (void *cls, const char *emsg)
1537 struct FindPeerContext *find_peer_context = cls;
1538 struct PeerCount *peer_count;
1540 struct GNUNET_TESTING_Daemon *temp_daemon;
1541 struct TopologyIteratorContext *topo_ctx;
1542 struct GNUNET_TIME_Relative calc_timeout;
1547 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Ending test, churning of peers failed with error `%s'", emsg);
1548 GNUNET_SCHEDULER_add_now(&end_badly, (void *)emsg);
1553 * If we switched any peers on, we have to somehow force connect the new peer to
1554 * SOME bootstrap peer in the network. First schedule a task to find all peers
1555 * with no connections, then choose a random peer for each and connect them.
1557 if (find_peer_context != NULL)
1559 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "We have churned on some peers, so we must schedule find peer requests for them!\n");
1561 for (i = 0; i < num_peers; i ++)
1563 temp_daemon = GNUNET_TESTING_daemon_get(pg, i);
1564 if (GNUNET_YES == GNUNET_TESTING_daemon_running(temp_daemon))
1566 peer_count = GNUNET_malloc (sizeof(struct PeerCount));
1567 memcpy(&peer_count->peer_id, &temp_daemon->id, sizeof(struct GNUNET_PeerIdentity));
1568 GNUNET_assert(peer_count->count == 0);
1569 peer_count->heap_node = GNUNET_CONTAINER_heap_insert(find_peer_context->peer_min_heap, peer_count, peer_count->count);
1570 GNUNET_CONTAINER_multihashmap_put(find_peer_context->peer_hash, &temp_daemon->id.hashPubKey, peer_count, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
1574 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));
1575 GNUNET_SCHEDULER_add_delayed(DEFAULT_PEER_DISCONNECT_TIMEOUT, &schedule_churn_get_topology, find_peer_context);
1579 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");
1580 if (dhtlog_handle != NULL)
1582 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
1583 topo_ctx->cont = &do_get;
1584 topo_ctx->cls = all_gets;
1585 topo_ctx->timeout = DEFAULT_GET_TIMEOUT;
1586 topo_ctx->peers_seen = GNUNET_CONTAINER_multihashmap_create(num_peers);
1587 calc_timeout = GNUNET_TIME_relative_add(DEFAULT_GET_TIMEOUT, all_get_timeout);
1588 calc_timeout = GNUNET_TIME_relative_add(calc_timeout, DEFAULT_TOPOLOGY_CAPTURE_TIMEOUT);
1589 calc_timeout = GNUNET_TIME_relative_add(calc_timeout, DEFAULT_PEER_DISCONNECT_TIMEOUT);
1590 die_task = GNUNET_SCHEDULER_add_delayed (calc_timeout,
1591 &end_badly, "from do gets (churn_complete)");
1592 GNUNET_SCHEDULER_add_delayed(DEFAULT_PEER_DISCONNECT_TIMEOUT, &capture_current_topology, topo_ctx);
1593 dhtlog_handle->insert_round(DHT_ROUND_GET, rounds_finished);
1597 calc_timeout = GNUNET_TIME_relative_add(DEFAULT_GET_TIMEOUT, all_get_timeout);
1598 calc_timeout = GNUNET_TIME_relative_add(calc_timeout, DEFAULT_PEER_DISCONNECT_TIMEOUT);
1599 die_task = GNUNET_SCHEDULER_add_delayed (calc_timeout,
1600 &end_badly, "from do gets (churn_complete)");
1601 GNUNET_SCHEDULER_add_delayed(DEFAULT_PEER_DISCONNECT_TIMEOUT, &do_get, all_gets);
1607 * Decide how many peers to turn on or off in this round, make sure the
1608 * numbers actually make sense, then do so. This function sets in motion
1609 * churn, find peer requests for newly joined peers, and issuing get
1610 * requests once the new peers have done so.
1612 * @param cls closure (unused)
1613 * @param tc task context (unused)
1616 churn_peers (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1618 unsigned int count_running;
1619 unsigned int churn_up;
1620 unsigned int churn_down;
1621 struct GNUNET_TIME_Relative timeout;
1622 struct FindPeerContext *find_peer_context;
1624 churn_up = churn_down = 0;
1625 count_running = GNUNET_TESTING_daemons_running(pg);
1626 if (count_running > churn_array[current_churn_round])
1627 churn_down = count_running - churn_array[current_churn_round];
1628 else if (count_running < churn_array[current_churn_round])
1629 churn_up = churn_array[current_churn_round] - count_running;
1631 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Not churning any peers, topology unchanged.\n");
1633 if (churn_up > num_peers - count_running)
1635 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Churn file specified %u peers (up); only have %u!", churn_array[current_churn_round], num_peers);
1636 churn_up = num_peers - count_running;
1638 else if (churn_down > count_running)
1640 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Churn file specified %u peers (down); only have %u!", churn_array[current_churn_round], count_running);
1641 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "This will leave NO peers running (mistake in churn configuration?)!");
1642 churn_down = count_running;
1644 //timeout = GNUNET_TIME_relative_multiply(seconds_per_peer_start, churn_up > 0 ? churn_up : churn_down);
1645 //timeout = GNUNET_TIME_relative_multiply (seconds_per_peer_start, churn_up > 0 ? churn_up : churn_down);
1646 timeout = GNUNET_TIME_relative_multiply(DEFAULT_TIMEOUT, 2); /* FIXME: Lack of intelligent choice here */
1647 find_peer_context = NULL;
1648 if (churn_up > 0) /* Only need to do find peer requests if we turned new peers on */
1650 find_peer_context = GNUNET_malloc(sizeof(struct FindPeerContext));
1651 find_peer_context->count_peers_cb = &count_peers_churn_cb;
1652 find_peer_context->previous_peers = 0;
1653 find_peer_context->current_peers = 0;
1654 find_peer_context->endtime = GNUNET_TIME_relative_to_absolute(timeout);
1655 find_peer_context->peer_hash = GNUNET_CONTAINER_multihashmap_create(num_peers);
1656 find_peer_context->peer_min_heap = GNUNET_CONTAINER_heap_create(GNUNET_CONTAINER_HEAP_ORDER_MIN);
1658 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "churn_peers: want %u total, %u running, starting %u, stopping %u\n",
1659 churn_array[current_churn_round], count_running, churn_up, churn_down);
1660 GNUNET_TESTING_daemons_churn (pg, churn_down, churn_up, timeout, &churn_complete, find_peer_context);
1661 current_churn_round++;
1665 * Task to release DHT handle associated with GET request.
1668 get_stop_finished (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1670 struct TestGetContext *test_get = cls;
1671 struct TopologyIteratorContext *topo_ctx;
1673 /* The dht_handle may be null if this get was scheduled from a down peer */
1674 if (test_get->dht_handle != NULL)
1676 GNUNET_DHT_disconnect(test_get->dht_handle);
1677 outstanding_gets--; /* GET is really finished */
1678 test_get->dht_handle = NULL;
1681 /* Reset the uid (which item to search for) and the daemon (which peer to search from) for later get request iterations */
1682 if (get_from_same == GNUNET_NO)
1684 test_get->uid = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_puts);
1685 test_get->daemon = GNUNET_TESTING_daemon_get(pg, GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers));
1689 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "%d gets succeeded, %d gets failed!\n", gets_completed, gets_failed);
1691 update_meter(get_meter);
1692 if ((gets_completed + gets_failed == num_gets) && (outstanding_gets == 0))
1694 fprintf(stderr, "Canceling die task (get_stop_finished) %llu gets completed, %llu gets failed\n", gets_completed, gets_failed);
1695 if ((GNUNET_YES == dhtlog_minimal) && (NULL != dhtlog_handle))
1696 dhtlog_handle->insert_round_details(DHT_ROUND_GET, rounds_finished, num_gets, gets_completed);
1697 GNUNET_SCHEDULER_cancel(die_task);
1698 reset_meter(put_meter);
1699 reset_meter(get_meter);
1702 * 1) Testing is completely finished, call the topology iteration dealy and die
1703 * 2) Testing is not finished, churn the network and do gets again (current_churn_round < churn_rounds)
1704 * 3) Testing is not finished, reschedule all the PUTS *and* GETS again (num_rounds > 1)
1706 if (rounds_finished == total_rounds - 1) /* Everything is finished, end testing */
1708 if ((dhtlog_handle != NULL) && (GNUNET_NO == dhtlog_minimal))
1710 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
1711 topo_ctx->cont = &log_dht_statistics;
1712 topo_ctx->peers_seen = GNUNET_CONTAINER_multihashmap_create(num_peers);
1713 GNUNET_SCHEDULER_add_now(&capture_current_topology, topo_ctx);
1716 GNUNET_SCHEDULER_add_now (&finish_testing, NULL);
1718 else if (current_churn_round < churns_per_round * (rounds_finished + 1)) /* Do next round of churn */
1720 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);
1724 if (dhtlog_handle != NULL)
1725 dhtlog_handle->insert_round(DHT_ROUND_CHURN, rounds_finished);
1727 GNUNET_SCHEDULER_add_now(&churn_peers, NULL);
1729 else if (rounds_finished < total_rounds - 1) /* Start a new complete round */
1734 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Round %u of %llu finished, scheduling next round.\n", rounds_finished, total_rounds);
1736 /** We reset the peer daemon for puts and gets on each disconnect, so all we need to do is start another round! */
1737 if (GNUNET_YES == in_dht_replication) /* Replication done in DHT, don't redo puts! */
1739 if (dhtlog_handle != NULL)
1740 dhtlog_handle->insert_round(DHT_ROUND_GET, rounds_finished);
1742 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),
1743 &end_badly, "from do gets (next round)");
1744 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, round_delay), &do_get, all_gets);
1748 if (dhtlog_handle != NULL)
1749 dhtlog_handle->insert_round(DHT_ROUND_NORMAL, rounds_finished);
1750 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)),
1751 &end_badly, "from do puts");
1752 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, round_delay), &do_put, all_puts);
1759 * Task to release get handle.
1762 get_stop_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1764 struct TestGetContext *test_get = cls;
1766 if (tc->reason == GNUNET_SCHEDULER_REASON_TIMEOUT)
1768 GNUNET_assert(test_get->get_handle != NULL);
1769 GNUNET_DHT_get_stop(test_get->get_handle);
1770 test_get->get_handle = NULL;
1771 test_get->disconnect_task = GNUNET_SCHEDULER_NO_TASK;
1772 GNUNET_SCHEDULER_add_now (&get_stop_finished, test_get);
1776 * Iterator called if the GET request initiated returns a response.
1778 * @param cls closure
1779 * @param exp when will this value expire
1780 * @param key key of the result
1781 * @param get_path NULL-terminated array of pointers
1782 * to the peers on reverse GET path (or NULL if not recorded)
1783 * @param put_path NULL-terminated array of pointers
1784 * to the peers on the PUT path (or NULL if not recorded)
1785 * @param type type of the result
1786 * @param size number of bytes in data
1787 * @param data pointer to the result data
1790 get_result_iterator (void *cls,
1791 struct GNUNET_TIME_Absolute exp,
1792 const GNUNET_HashCode * key,
1793 const struct GNUNET_PeerIdentity * const *get_path,
1794 const struct GNUNET_PeerIdentity * const *put_path,
1795 enum GNUNET_BLOCK_Type type,
1799 struct TestGetContext *test_get = cls;
1801 if (test_get->succeeded == GNUNET_YES)
1802 return; /* Get has already been successful, probably ending now */
1804 if (0 != memcmp(&known_keys[test_get->uid], key, sizeof (GNUNET_HashCode))) /* || (0 != memcmp(original_data, data, sizeof(original_data))))*/
1807 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Key or data is not the same as was inserted!\n");
1812 test_get->succeeded = GNUNET_YES;
1815 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Received correct GET response!\n");
1817 GNUNET_SCHEDULER_cancel(test_get->disconnect_task);
1818 GNUNET_SCHEDULER_add_continuation(&get_stop_task, test_get, GNUNET_SCHEDULER_REASON_PREREQ_DONE);
1824 * Set up some data, and call API PUT function
1827 do_get (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1829 struct TestGetContext *test_get = cls;
1833 GNUNET_SCHEDULER_cancel(die_task);
1834 GNUNET_SCHEDULER_add_now(&finish_testing, NULL);
1837 if (test_get == NULL)
1838 return; /* End of the list */
1840 /* Set this here in case we are re-running gets */
1841 test_get->succeeded = GNUNET_NO;
1843 if (GNUNET_YES != GNUNET_TESTING_daemon_running(test_get->daemon)) /* If the peer has been churned off, don't try issuing request from it! */
1845 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Peer we should issue get request from is down, skipping.\n");
1847 GNUNET_SCHEDULER_add_now (&get_stop_finished, test_get);
1848 GNUNET_SCHEDULER_add_now (&do_get, test_get->next);
1852 /* Check if more gets are outstanding than should be */
1853 if (outstanding_gets > max_outstanding_gets)
1855 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MILLISECONDS, 200), &do_get, test_get);
1859 /* Connect to the first peer's DHT */
1860 test_get->dht_handle = GNUNET_DHT_connect(test_get->daemon->cfg, 10);
1861 GNUNET_assert(test_get->dht_handle != NULL);
1864 /* Insert the data at the first peer */
1865 test_get->get_handle = GNUNET_DHT_get_start(test_get->dht_handle,
1867 GNUNET_BLOCK_TYPE_TEST,
1868 &known_keys[test_get->uid],
1873 &get_result_iterator,
1877 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Starting get for uid %u from peer %s\n",
1879 test_get->daemon->shortname);
1881 test_get->disconnect_task = GNUNET_SCHEDULER_add_delayed(get_timeout, &get_stop_task, test_get);
1883 /* Schedule the next request in the linked list of get requests */
1884 GNUNET_SCHEDULER_add_now (&do_get, test_get->next);
1888 * Called when the PUT request has been transmitted to the DHT service.
1889 * Schedule the GET request for some time in the future.
1892 put_finished (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1894 struct TestPutContext *test_put = cls;
1895 struct TopologyIteratorContext *topo_ctx;
1899 if (tc->reason == GNUNET_SCHEDULER_REASON_TIMEOUT)
1900 fprintf(stderr, "PUT Request failed!\n");
1902 /* Reset the daemon (which peer to insert at) for later put request iterations */
1903 if (replicate_same == GNUNET_NO)
1904 test_put->daemon = GNUNET_TESTING_daemon_get(pg, GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers));
1906 GNUNET_SCHEDULER_cancel(test_put->disconnect_task);
1907 test_put->disconnect_task = GNUNET_SCHEDULER_add_now(&put_disconnect_task, test_put);
1908 if (GNUNET_YES == update_meter(put_meter))
1910 GNUNET_assert(outstanding_puts == 0);
1911 GNUNET_SCHEDULER_cancel (die_task);
1912 if ((dhtlog_handle != NULL) && (GNUNET_NO == dhtlog_minimal))
1914 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
1915 topo_ctx->cont = &do_get;
1916 topo_ctx->cls = all_gets;
1917 topo_ctx->timeout = DEFAULT_GET_TIMEOUT;
1918 topo_ctx->peers_seen = GNUNET_CONTAINER_multihashmap_create(num_peers);
1919 die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_add(GNUNET_TIME_relative_add(DEFAULT_GET_TIMEOUT, all_get_timeout), DEFAULT_TOPOLOGY_CAPTURE_TIMEOUT),
1920 &end_badly, "from do gets (put finished)");
1921 GNUNET_SCHEDULER_add_now(&capture_current_topology, topo_ctx);
1925 fprintf(stderr, "Scheduling die task (put finished)\n");
1926 die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_add(DEFAULT_GET_TIMEOUT, all_get_timeout),
1927 &end_badly, "from do gets (put finished)");
1928 GNUNET_SCHEDULER_add_delayed(DEFAULT_GET_TIMEOUT, &do_get, all_gets);
1935 * Set up some data, and call API PUT function
1938 do_put (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1940 struct TestPutContext *test_put = cls;
1941 char data[test_data_size]; /* Made up data to store */
1945 if (test_put == NULL)
1946 return; /* End of list */
1948 if (GNUNET_YES != GNUNET_TESTING_daemon_running(test_put->daemon)) /* If the peer has been churned off, don't try issuing request from it! */
1950 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Peer we should issue put request at is down, skipping.\n");
1951 update_meter(put_meter);
1952 GNUNET_SCHEDULER_add_now (&do_put, test_put->next);
1956 for (i = 0; i < sizeof(data); i++)
1958 memset(&data[i], GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, UINT32_MAX), 1);
1961 if (outstanding_puts > max_outstanding_puts)
1963 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MILLISECONDS, 200), &do_put, test_put);
1968 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Starting put for uid %u from peer %s\n",
1970 test_put->daemon->shortname);
1972 test_put->dht_handle = GNUNET_DHT_connect(test_put->daemon->cfg, 10);
1974 GNUNET_assert(test_put->dht_handle != NULL);
1976 GNUNET_DHT_put(test_put->dht_handle,
1977 &known_keys[test_put->uid],
1980 GNUNET_BLOCK_TYPE_TEST,
1982 GNUNET_TIME_UNIT_FOREVER_ABS,
1984 &put_finished, test_put);
1985 test_put->disconnect_task = GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_get_forever(), &put_disconnect_task, test_put);
1986 rand = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, 2);
1987 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, rand), &do_put, test_put->next);
1991 schedule_find_peer_requests (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc);
1994 setup_malicious_peers (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc);
1997 * Given a number of total peers and a bucket size, estimate the number of
1998 * connections in a perfect kademlia topology.
2000 static unsigned int connection_estimate(unsigned int peer_count, unsigned int bucket_size)
2003 unsigned int filled;
2007 while (i >= bucket_size)
2012 filled++; /* Add one filled bucket to account for one "half full" and some miscellaneous */
2013 return filled * bucket_size * peer_count;
2019 * Callback for iterating over all the peer connections of a peer group.
2022 count_peers_cb (void *cls,
2023 const struct GNUNET_PeerIdentity *first,
2024 const struct GNUNET_PeerIdentity *second,
2027 struct FindPeerContext *find_peer_context = cls;
2028 if ((first != NULL) && (second != NULL))
2030 add_new_connection(find_peer_context, first, second);
2031 find_peer_context->current_peers++;
2035 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Peer count finished (%u connections), %u new peers, connection estimate %u (target %u)\n",
2036 find_peer_context->current_peers,
2037 find_peer_context->current_peers - find_peer_context->previous_peers,
2038 connection_estimate(num_peers, DEFAULT_BUCKET_SIZE),
2039 target_total_connections);
2041 if ((find_peer_context->last_sent < 8) ||
2042 ((find_peer_context->current_peers - find_peer_context->previous_peers > FIND_PEER_THRESHOLD) &&
2043 (find_peer_context->current_peers < 2 * connection_estimate(num_peers, DEFAULT_BUCKET_SIZE)) &&
2044 (GNUNET_TIME_absolute_get_remaining(find_peer_context->endtime).rel_value > 0) &&
2045 (find_peer_context->current_peers < target_total_connections)))
2047 GNUNET_SCHEDULER_add_now(&schedule_find_peer_requests, find_peer_context);
2051 GNUNET_CONTAINER_multihashmap_iterate(find_peer_context->peer_hash, &remove_peer_count, find_peer_context);
2052 GNUNET_CONTAINER_multihashmap_destroy(find_peer_context->peer_hash);
2053 GNUNET_CONTAINER_heap_destroy(find_peer_context->peer_min_heap);
2054 GNUNET_free(find_peer_context);
2055 fprintf(stderr, "Not sending any more find peer requests.\n");
2058 if (GNUNET_YES == malicious_after_settle)
2060 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "calling setup_malicious_peers\n");
2061 GNUNET_SCHEDULER_add_now(&setup_malicious_peers, NULL);
2070 * Set up a single find peer request for each peer in the topology. Do this
2071 * until the settle time is over, limited by the number of outstanding requests
2072 * and the time allowed for each one!
2075 schedule_find_peer_requests (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
2077 struct FindPeerContext *find_peer_ctx = cls;
2078 struct TestFindPeer *test_find_peer;
2079 struct PeerCount *peer_count;
2083 if (find_peer_ctx->previous_peers == 0) /* First time, go slowly */
2084 find_peer_ctx->total = 1;
2085 else if (find_peer_ctx->current_peers - find_peer_ctx->previous_peers > MAX_FIND_PEER_CUTOFF) /* Found LOTS of peers, still go slowly */
2086 find_peer_ctx->total = find_peer_ctx->last_sent - (find_peer_ctx->last_sent / 8);
2088 find_peer_ctx->total = find_peer_ctx->last_sent * 2;
2090 if (find_peer_ctx->total > max_outstanding_find_peers)
2091 find_peer_ctx->total = max_outstanding_find_peers;
2093 if (find_peer_ctx->total > num_peers) /* Don't try to send more messages than we have peers! */
2094 find_peer_ctx->total = num_peers;
2096 find_peer_ctx->last_sent = find_peer_ctx->total;
2097 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Sending %u find peer messages (goal at least %u connections)\n", find_peer_ctx->total, target_total_connections);
2099 find_peer_offset = GNUNET_TIME_relative_divide(find_peer_delay, find_peer_ctx->total);
2100 for (i = 0; i < find_peer_ctx->total; i++)
2102 test_find_peer = GNUNET_malloc(sizeof(struct TestFindPeer));
2103 if (find_peer_ctx->previous_peers == 0) /* If we haven't sent any requests yet, choose random peers */
2106 * Attempt to spread find peer requests across even sections of the peer address
2107 * space. Choose basically 1 peer in every num_peers / max_outstanding_requests
2108 * each time, then offset it by a randomish value.
2110 * For instance, if num_peers is 100 and max_outstanding is 10, first chosen peer
2111 * will be between 0 - 10, second between 10 - 20, etc.
2113 random = (num_peers / find_peer_ctx->total) * i;
2114 random = random + GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, (num_peers / find_peer_ctx->total));
2115 if (random >= num_peers)
2117 random = random - num_peers;
2120 random = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers);
2122 test_find_peer->daemon = GNUNET_TESTING_daemon_get(pg, random);
2124 else /* If we have sent requests, choose peers with a low number of connections to send requests from */
2126 peer_count = GNUNET_CONTAINER_heap_remove_root(find_peer_ctx->peer_min_heap);
2127 GNUNET_assert(GNUNET_YES == GNUNET_CONTAINER_multihashmap_remove(find_peer_ctx->peer_hash, &peer_count->peer_id.hashPubKey, peer_count));
2128 test_find_peer->daemon = GNUNET_TESTING_daemon_get_by_id(pg, &peer_count->peer_id);
2129 GNUNET_assert(test_find_peer->daemon != NULL);
2132 test_find_peer->find_peer_context = find_peer_ctx;
2133 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_multiply(find_peer_offset, i), &send_find_peer_request, test_find_peer);
2136 if ((find_peer_ctx->peer_hash == NULL) && (find_peer_ctx->peer_min_heap == NULL))
2138 find_peer_ctx->peer_hash = GNUNET_CONTAINER_multihashmap_create(num_peers);
2139 find_peer_ctx->peer_min_heap = GNUNET_CONTAINER_heap_create(GNUNET_CONTAINER_HEAP_ORDER_MIN);
2143 GNUNET_CONTAINER_multihashmap_iterate(find_peer_ctx->peer_hash, &remove_peer_count, find_peer_ctx);
2144 GNUNET_CONTAINER_multihashmap_destroy(find_peer_ctx->peer_hash);
2145 find_peer_ctx->peer_hash = GNUNET_CONTAINER_multihashmap_create(num_peers);
2148 GNUNET_assert(0 == GNUNET_CONTAINER_multihashmap_size(find_peer_ctx->peer_hash));
2149 GNUNET_assert(0 == GNUNET_CONTAINER_heap_get_size(find_peer_ctx->peer_min_heap));
2154 * Convert unique ID to hash code.
2156 * @param uid unique ID to convert
2157 * @param hash set to uid (extended with zeros)
2160 hash_from_uid (uint32_t uid, GNUNET_HashCode *hash)
2162 memset (hash, 0, sizeof (GNUNET_HashCode));
2163 *((uint32_t *) hash) = uid;
2168 * Set up all of the put and get operations we want to do
2169 * in the current round. Allocate data structure for each,
2170 * add to list, then schedule the actual PUT operations.
2173 setup_puts_and_gets (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
2176 struct TestPutContext *test_put;
2177 struct TestGetContext *test_get;
2179 GNUNET_HashCode uid_hash;
2182 int remember[num_puts][num_peers];
2183 memset(&remember, 0, sizeof(int) * num_puts * num_peers);
2185 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "in setup_puts_and_gets\n");
2186 known_keys = GNUNET_malloc(sizeof(GNUNET_HashCode) * num_puts);
2187 for (i = 0; i < num_puts; i++)
2189 test_put = GNUNET_malloc(sizeof(struct TestPutContext));
2191 GNUNET_CRYPTO_hash_create_random (GNUNET_CRYPTO_QUALITY_WEAK, &known_keys[i]);
2192 /* Set first X bits to match the chosen sybil location if we want to do the sybil attack! */
2193 if (GNUNET_YES == malicious_sybil)
2195 memcpy(&known_keys[i], &sybil_target, sizeof(GNUNET_HashCode) / 2);
2196 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));
2198 temp_peer = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers);
2199 test_put->daemon = GNUNET_TESTING_daemon_get(pg, temp_peer);
2200 /* Don't start PUTs at malicious peers! */
2201 if (malicious_bloom != NULL)
2204 hash_from_uid(temp_peer, &uid_hash);
2205 while ((GNUNET_YES == GNUNET_CONTAINER_bloomfilter_test(malicious_bloom, &uid_hash)) && (count < num_peers))
2207 temp_peer = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers);
2208 hash_from_uid(temp_peer, &uid_hash);
2209 test_put->daemon = GNUNET_TESTING_daemon_get(pg, temp_peer);
2212 if (count == num_peers)
2213 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Couldn't find peer not in malicious bloom to select!\n");
2216 test_put->next = all_puts;
2217 all_puts = test_put;
2220 for (i = 0; i < num_gets; i++)
2222 test_get = GNUNET_malloc(sizeof(struct TestGetContext));
2223 test_get->uid = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_puts);
2225 while (remember[test_get->uid][temp_daemon] == 1)
2226 temp_daemon = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers);
2227 remember[test_get->uid][temp_daemon] = 1;
2229 temp_peer = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers);
2230 test_get->daemon = GNUNET_TESTING_daemon_get(pg, temp_peer);
2231 /* Don't start GETs at malicious peers! */
2232 if (malicious_bloom != NULL)
2234 hash_from_uid(temp_peer, &uid_hash);
2236 while ((GNUNET_YES == GNUNET_CONTAINER_bloomfilter_test(malicious_bloom, &uid_hash)) && (count < num_peers))
2238 temp_peer = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers);
2239 hash_from_uid(temp_peer, &uid_hash);
2240 test_get->daemon = GNUNET_TESTING_daemon_get(pg, temp_peer);
2243 if (count == num_peers)
2244 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Couldn't find peer not in malicious bloom to select!\n");
2246 test_get->next = all_gets;
2247 all_gets = test_get;
2250 /*GNUNET_SCHEDULER_cancel (die_task);*/
2251 die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, num_puts * 2),
2252 &end_badly, "from do puts");
2253 GNUNET_SCHEDULER_add_now (&do_put, all_puts);
2258 * Set up some all of the put and get operations we want
2259 * to do. Allocate data structure for each, add to list,
2260 * then call actual insert functions.
2263 continue_puts_and_gets (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
2267 struct TopologyIteratorContext *topo_ctx;
2268 struct FindPeerContext *find_peer_context;
2269 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "In continue_puts_and_gets\n");
2270 if ((dhtlog_handle != NULL) && (GNUNET_NO == dhtlog_minimal))
2272 if (settle_time >= 180 * 2)
2273 max = (settle_time / 180) - 2;
2276 for (i = 1; i < max; i++)
2278 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
2279 topo_ctx->current_iteration = i;
2280 topo_ctx->total_iterations = max;
2281 topo_ctx->peers_seen = GNUNET_CONTAINER_multihashmap_create(num_peers);
2282 //fprintf(stderr, "scheduled topology iteration in %d minutes\n", i);
2283 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MINUTES, i * 3), &capture_current_topology, topo_ctx);
2285 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
2286 topo_ctx->cont = &setup_puts_and_gets;
2287 topo_ctx->peers_seen = GNUNET_CONTAINER_multihashmap_create(num_peers);
2288 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "setting setup_puts_and_gets for %d seconds in the future\n", settle_time + 10);
2289 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, (settle_time + 10)), &capture_current_topology, topo_ctx);
2292 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, (settle_time + 10)), &setup_puts_and_gets, NULL);
2294 if (dhtlog_handle != NULL)
2295 dhtlog_handle->insert_round(DHT_ROUND_NORMAL, rounds_finished);
2298 if ((GNUNET_YES != malicious_after_settle) || (settle_time == 0))
2300 GNUNET_SCHEDULER_add_now(&setup_malicious_peers, NULL);
2304 if ((GNUNET_YES == do_find_peer) && (settle_time > 0))
2306 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Scheduling find peer requests during \"settle\" time.\n");
2307 find_peer_context = GNUNET_malloc(sizeof(struct FindPeerContext));
2308 find_peer_context->count_peers_cb = &count_peers_cb;
2309 find_peer_context->endtime = GNUNET_TIME_relative_to_absolute(GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, settle_time));
2310 GNUNET_SCHEDULER_add_now(&schedule_find_peer_requests, find_peer_context);
2314 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Assuming automatic DHT find peer requests.\n");
2319 * Task to release DHT handles
2322 malicious_disconnect_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
2324 struct MaliciousContext *ctx = cls;
2325 outstanding_malicious--;
2326 malicious_completed++;
2327 ctx->disconnect_task = GNUNET_SCHEDULER_NO_TASK;
2328 GNUNET_DHT_disconnect(ctx->dht_handle);
2329 ctx->dht_handle = NULL;
2332 if (malicious_completed == malicious_getters + malicious_putters + malicious_droppers)
2334 fprintf(stderr, "Finished setting all malicious peers up!\n");
2340 * Task to release DHT handles
2343 malicious_done_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
2345 struct MaliciousContext *ctx = cls;
2346 GNUNET_SCHEDULER_cancel(ctx->disconnect_task);
2347 GNUNET_SCHEDULER_add_now(&malicious_disconnect_task, ctx);
2351 * Set up some data, and call API PUT function
2354 set_malicious (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
2356 struct MaliciousContext *ctx = cls;
2358 if (outstanding_malicious > DEFAULT_MAX_OUTSTANDING_GETS)
2360 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MILLISECONDS, 100), &set_malicious, ctx);
2364 if (ctx->dht_handle == NULL)
2366 ctx->dht_handle = GNUNET_DHT_connect(ctx->daemon->cfg, 1);
2367 outstanding_malicious++;
2370 GNUNET_assert(ctx->dht_handle != NULL);
2374 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Setting peer %s malicious type %d\n",
2375 ctx->daemon->shortname, ctx->malicious_type);
2378 switch (ctx->malicious_type)
2380 case GNUNET_MESSAGE_TYPE_DHT_MALICIOUS_GET:
2381 GNUNET_DHT_set_malicious_getter(ctx->dht_handle, malicious_get_frequency);
2382 GNUNET_SCHEDULER_add_now (&malicious_done_task, ctx);
2384 case GNUNET_MESSAGE_TYPE_DHT_MALICIOUS_PUT:
2385 GNUNET_DHT_set_malicious_putter(ctx->dht_handle, malicious_put_frequency);
2386 GNUNET_SCHEDULER_add_now (&malicious_done_task, ctx);
2388 case GNUNET_MESSAGE_TYPE_DHT_MALICIOUS_DROP:
2389 GNUNET_DHT_set_malicious_dropper(ctx->dht_handle);
2390 GNUNET_SCHEDULER_add_now (&malicious_done_task, ctx);
2396 ctx->disconnect_task = GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_UNIT_FOREVER_REL,
2397 &malicious_disconnect_task, ctx);
2403 * Choose the next peer from the peer group to set as malicious.
2404 * If we are doing a sybil attack, find the nearest peer to the
2405 * sybil location that has not already been set malicious. Otherwise
2406 * just choose a random not already chosen peer.
2408 * @param pg the peer group
2409 * @param bloom the bloomfilter which contains all peer already
2410 * chosen to be malicious
2413 choose_next_malicious (struct GNUNET_TESTING_PeerGroup *pg, struct GNUNET_CONTAINER_BloomFilter *bloom)
2420 struct GNUNET_TESTING_Daemon *temp_daemon;
2421 GNUNET_HashCode uid_hash;
2425 GNUNET_assert (bloom != NULL);
2427 if (GNUNET_YES == malicious_sybil)
2429 for (i = 0; i < num_peers; i++)
2431 temp_daemon = GNUNET_TESTING_daemon_get(pg, i);
2432 hash_from_uid(i, &uid_hash);
2433 /* Check if this peer matches the bloomfilter */
2434 if ((GNUNET_NO == GNUNET_TESTING_daemon_running(temp_daemon)) || (GNUNET_YES == GNUNET_CONTAINER_bloomfilter_test (bloom, &uid_hash)))
2437 bits_match = GNUNET_CRYPTO_hash_matching_bits (&temp_daemon->id.hashPubKey, &sybil_target);
2438 if (bits_match >= curr_distance)
2440 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);
2442 curr_distance = bits_match;
2448 nearest = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers);
2449 hash_from_uid(nearest, &uid_hash);
2451 while ((GNUNET_YES == GNUNET_CONTAINER_bloomfilter_test (bloom, &uid_hash)) && (count < num_peers))
2453 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Peer %d already in bloom (tried %d times)\n", nearest, count);
2454 nearest = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers);
2455 hash_from_uid(nearest, &uid_hash);
2458 if (count == num_peers)
2459 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Tried %d times to find a peer, selecting %d at random!!\n", count, nearest);
2466 * Select randomly from set of known peers,
2467 * set the desired number of peers to the
2468 * proper malicious types.
2471 setup_malicious_peers (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
2473 struct MaliciousContext *ctx;
2475 uint32_t temp_daemon;
2476 GNUNET_HashCode uid_hash;
2478 for (i = 0; i < malicious_getters; i++)
2480 ctx = GNUNET_malloc(sizeof(struct MaliciousContext));
2481 temp_daemon = choose_next_malicious(pg, malicious_bloom);
2482 ctx->daemon = GNUNET_TESTING_daemon_get(pg, temp_daemon);
2483 hash_from_uid(temp_daemon, &uid_hash);
2484 GNUNET_CONTAINER_bloomfilter_add(malicious_bloom, &uid_hash);
2485 ctx->malicious_type = GNUNET_MESSAGE_TYPE_DHT_MALICIOUS_GET;
2486 GNUNET_SCHEDULER_add_now (&set_malicious, ctx);
2490 for (i = 0; i < malicious_putters; i++)
2492 ctx = GNUNET_malloc(sizeof(struct MaliciousContext));
2493 temp_daemon = choose_next_malicious(pg, malicious_bloom);
2494 ctx->daemon = GNUNET_TESTING_daemon_get(pg, temp_daemon);
2495 hash_from_uid(temp_daemon, &uid_hash);
2496 GNUNET_CONTAINER_bloomfilter_add(malicious_bloom, &uid_hash);
2497 ctx->malicious_type = GNUNET_MESSAGE_TYPE_DHT_MALICIOUS_PUT;
2498 GNUNET_SCHEDULER_add_now (&set_malicious, ctx);
2502 for (i = 0; i < malicious_droppers; i++)
2504 ctx = GNUNET_malloc(sizeof(struct MaliciousContext));
2505 temp_daemon = choose_next_malicious(pg, malicious_bloom);
2506 ctx->daemon = GNUNET_TESTING_daemon_get(pg, temp_daemon);
2507 hash_from_uid(temp_daemon, &uid_hash);
2508 GNUNET_CONTAINER_bloomfilter_add(malicious_bloom, &uid_hash);
2509 ctx->malicious_type = GNUNET_MESSAGE_TYPE_DHT_MALICIOUS_DROP;
2510 GNUNET_SCHEDULER_add_now (&set_malicious, ctx);
2516 * This function is called whenever a connection attempt is finished between two of
2517 * the started peers (started with GNUNET_TESTING_daemons_start). The total
2518 * number of times this function is called should equal the number returned
2519 * from the GNUNET_TESTING_connect_topology call.
2521 * The emsg variable is NULL on success (peers connected), and non-NULL on
2522 * failure (peers failed to connect).
2525 topology_callback (void *cls,
2526 const struct GNUNET_PeerIdentity *first,
2527 const struct GNUNET_PeerIdentity *second,
2529 const struct GNUNET_CONFIGURATION_Handle *first_cfg,
2530 const struct GNUNET_CONFIGURATION_Handle *second_cfg,
2531 struct GNUNET_TESTING_Daemon *first_daemon,
2532 struct GNUNET_TESTING_Daemon *second_daemon,
2535 struct TopologyIteratorContext *topo_ctx;
2536 unsigned long long duration;
2537 unsigned long long total_duration;
2538 unsigned int new_connections;
2540 if (GNUNET_TIME_absolute_get_difference (connect_last_time,
2541 GNUNET_TIME_absolute_get()).rel_value > GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, CONN_UPDATE_DURATION).rel_value)
2543 /* Get number of new connections */
2544 new_connections = total_connections - previous_connections;
2545 /* Get duration in seconds */
2546 duration = GNUNET_TIME_absolute_get_difference (connect_last_time,
2547 GNUNET_TIME_absolute_get()).rel_value / 1000;
2548 total_duration = GNUNET_TIME_absolute_get_difference (connect_start_time,
2549 GNUNET_TIME_absolute_get()).rel_value / 1000;
2550 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);
2551 connect_last_time = GNUNET_TIME_absolute_get();
2552 previous_connections = total_connections;
2553 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "have %u total_connections\n", total_connections);
2557 total_connections++;
2559 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "connected peer %s to peer %s, distance %u\n",
2560 first_daemon->shortname,
2561 second_daemon->shortname,
2567 failed_connections++;
2568 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Failed to connect peer %s to peer %s with error :\n%s\n",
2569 first_daemon->shortname,
2570 second_daemon->shortname, emsg);
2572 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Failed to connect peer %s to peer %s with error :\n%s\n",
2573 first_daemon->shortname,
2574 second_daemon->shortname, emsg);
2578 GNUNET_assert(peer_connect_meter != NULL);
2579 if (GNUNET_YES == update_meter(peer_connect_meter))
2582 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2583 "Created %d total connections, which is our target number! Starting next phase of testing.\n",
2586 if (failed_connections > 0)
2587 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "While connecting, had %u failed connections.\n", failed_connections);
2588 if (dhtlog_handle != NULL)
2590 dhtlog_handle->update_connections (total_connections);
2591 dhtlog_handle->insert_topology(expected_connections);
2594 GNUNET_SCHEDULER_cancel (die_task);
2596 if (dhtlog_handle != NULL)
2598 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
2599 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Setting continue gets and puts as topo_cont\n");
2600 topo_ctx->cont = &continue_puts_and_gets;
2601 topo_ctx->peers_seen = GNUNET_CONTAINER_multihashmap_create(num_peers);
2602 GNUNET_SCHEDULER_add_now(&capture_current_topology, topo_ctx);
2606 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);
2607 GNUNET_SCHEDULER_add_now(&continue_puts_and_gets, NULL);
2610 else if (total_connections + failed_connections == expected_connections)
2612 GNUNET_SCHEDULER_cancel (die_task);
2613 die_task = GNUNET_SCHEDULER_add_now (&end_badly, "from topology_callback (too many failed connections)");
2618 peers_started_callback (void *cls,
2619 const struct GNUNET_PeerIdentity *id,
2620 const struct GNUNET_CONFIGURATION_Handle *cfg,
2621 struct GNUNET_TESTING_Daemon *d, const char *emsg)
2625 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Failed to start daemon with error: `%s'\n",
2629 GNUNET_assert (id != NULL);
2632 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Started daemon %llu out of %llu\n",
2633 (num_peers - peers_left) + 1, num_peers);
2638 if (GNUNET_YES == update_meter(peer_start_meter))
2641 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2642 "All %d daemons started, now connecting peers!\n",
2645 GNUNET_SCHEDULER_cancel (die_task);
2647 expected_connections = UINT_MAX;
2648 if ((pg != NULL) && (peers_left == 0))
2650 connect_start_time = GNUNET_TIME_absolute_get();
2651 expected_connections = GNUNET_TESTING_connect_topology(pg,
2652 connect_topology, connect_topology_option,
2653 connect_topology_option_modifier,
2654 connect_timeout, connect_attempts,
2657 peer_connect_meter = create_meter(expected_connections, "Peer connection ", GNUNET_YES);
2658 fprintf(stderr, "Have %d expected connections\n", expected_connections);
2661 if (expected_connections == GNUNET_SYSERR)
2663 die_task = GNUNET_SCHEDULER_add_now (&end_badly, "from connect topology (bad return)");
2666 die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, DEFAULT_CONNECT_TIMEOUT * expected_connections),
2667 &end_badly, "from connect topology (timeout)");
2676 peers_left = num_peers; /* Reset counter */
2677 if (GNUNET_TESTING_create_topology (pg, topology, blacklist_topology, blacklist_transports) != GNUNET_SYSERR)
2679 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2680 "Topology set up, now starting peers!\n");
2681 GNUNET_TESTING_daemons_continue_startup(pg);
2685 GNUNET_SCHEDULER_cancel (die_task);
2686 die_task = GNUNET_SCHEDULER_add_now (&end_badly, "from create topology (bad return)");
2688 GNUNET_free_non_null(blacklist_transports);
2689 GNUNET_SCHEDULER_cancel (die_task);
2690 die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(seconds_per_peer_start, num_peers),
2691 &end_badly, "from continue startup (timeout)");
2695 * Callback indicating that the hostkey was created for a peer.
2698 * @param id the peer identity
2699 * @param d the daemon handle (pretty useless at this point, remove?)
2700 * @param emsg non-null on failure
2703 hostkey_callback (void *cls,
2704 const struct GNUNET_PeerIdentity *id,
2705 struct GNUNET_TESTING_Daemon *d,
2710 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Hostkey callback received error: %s\n", emsg);
2714 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2715 "Hostkey (%d/%d) created for peer `%s'\n",
2716 num_peers - peers_left, num_peers, GNUNET_i2s(id));
2720 if (GNUNET_YES == update_meter(hostkey_meter))
2722 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2723 "All %d hostkeys created, now creating topology!\n",
2725 GNUNET_SCHEDULER_cancel (die_task);
2726 /* Set up task in case topology creation doesn't finish
2727 * within a reasonable amount of time */
2728 die_task = GNUNET_SCHEDULER_add_delayed (DEFAULT_TOPOLOGY_TIMEOUT,
2729 &end_badly, "from create_topology");
2730 GNUNET_SCHEDULER_add_now(&create_topology, NULL);
2739 const char *cfgfile, const struct GNUNET_CONFIGURATION_Handle *cfg)
2742 struct GNUNET_DHTLOG_TrialInfo trial_info;
2743 struct GNUNET_TESTING_Host *hosts;
2744 struct GNUNET_TESTING_Host *temphost;
2745 struct GNUNET_TESTING_Host *tempnext;
2747 char *connect_topology_str;
2748 char *blacklist_topology_str;
2749 char *connect_topology_option_str;
2750 char *connect_topology_option_modifier_string;
2752 char *topology_percentage_str;
2753 float topology_percentage;
2754 char *topology_probability_str;
2756 float topology_probability;
2757 unsigned long long temp_config_number;
2758 unsigned long long trial_to_run;
2761 int strict_kademlia;
2765 char *churn_filename;
2772 rounds_finished = 0;
2773 memset(&trial_info, 0, sizeof(struct GNUNET_DHTLOG_TrialInfo));
2774 /* Get path from configuration file */
2775 if (GNUNET_YES != GNUNET_CONFIGURATION_get_value_string(cfg, "paths", "servicehome", &test_directory))
2781 /* Get number of peers to start from configuration */
2782 if (GNUNET_SYSERR ==
2783 GNUNET_CONFIGURATION_get_value_number (cfg, "testing", "num_peers",
2786 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2787 "Number of peers must be specified in section %s option %s\n", "TESTING", "NUM_PEERS");
2789 GNUNET_assert(num_peers > 0 && num_peers < ULONG_MAX);
2792 GNUNET_CONFIGURATION_get_value_number (cfg, "testing", "connect_timeout",
2793 &temp_config_number))
2795 GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, temp_config_number);
2798 GNUNET_log(GNUNET_ERROR_TYPE_ERROR, "Must provide option %s:%s!\n", "testing", "connect_timeout");
2804 GNUNET_CONFIGURATION_get_value_number (cfg, "testing", "connect_attempts",
2807 GNUNET_log(GNUNET_ERROR_TYPE_ERROR, "Must provide option %s:%s!\n", "testing", "connect_attempts");
2812 GNUNET_CONFIGURATION_get_value_number (cfg, "testing", "max_outstanding_connections",
2813 &max_outstanding_connections))
2815 GNUNET_log(GNUNET_ERROR_TYPE_ERROR, "Must provide option %s:%s!\n", "testing", "max_outstanding_connections");
2820 * Get DHT specific testing options.
2822 if ((GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht_testing", "mysql_logging")) ||
2823 (GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht_testing", "mysql_logging_extended")) ||
2824 (GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht_testing", "mysql_logging_minimal")))
2826 if (GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht_testing", "mysql_logging_minimal"))
2827 dhtlog_minimal = GNUNET_YES;
2829 dhtlog_handle = GNUNET_DHTLOG_connect(cfg);
2830 if (dhtlog_handle == NULL)
2832 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2833 "Could not connect to mysql server for logging, will NOT log dht operations!");
2839 stop_closest = GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht", "stop_on_closest");
2840 if (stop_closest == GNUNET_SYSERR)
2841 stop_closest = GNUNET_NO;
2843 stop_found = GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht", "stop_found");
2844 if (stop_found == GNUNET_SYSERR)
2845 stop_found = GNUNET_NO;
2847 strict_kademlia = GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht", "strict_kademlia");
2848 if (strict_kademlia == GNUNET_SYSERR)
2849 strict_kademlia = GNUNET_NO;
2852 GNUNET_CONFIGURATION_get_value_string (cfg, "dht_testing", "comment",
2854 trialmessage = NULL;
2857 /** Check for a churn file to do churny simulation */
2859 GNUNET_CONFIGURATION_get_value_string(cfg, "dht_testing", "churn_file",
2862 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Reading churn data from %s\n", churn_filename);
2863 if (GNUNET_OK != GNUNET_DISK_file_test (churn_filename))
2865 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Error reading churn file!\n");
2866 GNUNET_free_non_null(trialmessage);
2867 GNUNET_free(churn_filename);
2870 if ((0 != STAT (churn_filename, &frstat)) || (frstat.st_size == 0))
2872 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
2873 "Could not open file specified for churn data, ending test!");
2875 GNUNET_free_non_null(trialmessage);
2876 GNUNET_free(churn_filename);
2880 churn_data = GNUNET_malloc_large (frstat.st_size);
2881 GNUNET_assert(churn_data != NULL);
2882 if (frstat.st_size !=
2883 GNUNET_DISK_fn_read (churn_filename, churn_data, frstat.st_size))
2885 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
2886 "Could not read file %s specified for churn, ending test!", churn_filename);
2887 GNUNET_free (churn_filename);
2888 GNUNET_free (churn_data);
2889 GNUNET_free_non_null(trialmessage);
2893 GNUNET_free_non_null(churn_filename);
2897 /* Read the first line */
2898 while (count < frstat.st_size)
2901 if (((churn_data[count] == '\n')) && (buf != &churn_data[count]))
2903 churn_data[count] = '\0';
2904 if (1 != sscanf(buf, "%u", &churn_rounds))
2906 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Failed to read number of rounds from churn file, ending test!\n");
2908 GNUNET_free_non_null(trialmessage);
2909 GNUNET_free_non_null(churn_data);
2912 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Read %u rounds from churn file\n", churn_rounds);
2913 buf = &churn_data[count + 1];
2914 churn_array = GNUNET_malloc(sizeof(unsigned int) * churn_rounds);
2915 break; /* Done with this part */
2919 if (GNUNET_OK != GNUNET_CONFIGURATION_get_value_number(cfg, "dht_testing", "churns_per_round", &churns_per_round))
2921 churns_per_round = (unsigned long long)churn_rounds;
2925 while ((count < frstat.st_size) && (line_number < churn_rounds))
2928 if (((churn_data[count] == '\n')) && (buf != &churn_data[count]))
2930 churn_data[count] = '\0';
2932 ret = sscanf(buf, "%u", &churn_array[line_number]);
2935 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Read %u peers in round %u\n", churn_array[line_number], line_number);
2940 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Error reading line `%s' in hostfile\n", buf);
2941 buf = &churn_data[count + 1];
2944 buf = &churn_data[count + 1];
2946 else if (churn_data[count] == '\n') /* Blank line */
2947 buf = &churn_data[count + 1];
2950 GNUNET_free_non_null(churn_data);
2952 /* Check for a hostfile containing user@host:port triples */
2954 GNUNET_CONFIGURATION_get_value_string (cfg, "testing", "hostfile",
2961 if (hostfile != NULL)
2963 if (GNUNET_OK != GNUNET_DISK_file_test (hostfile))
2964 GNUNET_DISK_fn_write (hostfile, NULL, 0, GNUNET_DISK_PERM_USER_READ
2965 | GNUNET_DISK_PERM_USER_WRITE);
2966 if ((0 != STAT (hostfile, &frstat)) || (frstat.st_size == 0))
2968 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
2969 "Could not open file specified for host list, ending test!");
2971 GNUNET_free_non_null(trialmessage);
2972 GNUNET_free(hostfile);
2976 data = GNUNET_malloc_large (frstat.st_size);
2977 GNUNET_assert(data != NULL);
2978 if (frstat.st_size !=
2979 GNUNET_DISK_fn_read (hostfile, data, frstat.st_size))
2981 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
2982 "Could not read file %s specified for host list, ending test!", hostfile);
2983 GNUNET_free (hostfile);
2985 GNUNET_free_non_null(trialmessage);
2989 GNUNET_free_non_null(hostfile);
2993 while (count < frstat.st_size - 1)
2996 /* if (((data[count] == '\n') || (data[count] == '\0')) && (buf != &data[count]))*/
2997 if (((data[count] == '\n')) && (buf != &data[count]))
3000 temphost = GNUNET_malloc(sizeof(struct GNUNET_TESTING_Host));
3001 ret = sscanf(buf, "%a[a-zA-Z0-9]@%a[a-zA-Z0-9.]:%hd", &temphost->username, &temphost->hostname, &temphost->port);
3004 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Successfully read host %s, port %d and user %s from file\n", temphost->hostname, temphost->port, temphost->username);
3008 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Error reading line `%s' in hostfile\n", buf);
3009 GNUNET_free(temphost);
3010 buf = &data[count + 1];
3013 /* temphost->hostname = buf; */
3014 temphost->next = hosts;
3016 buf = &data[count + 1];
3018 else if ((data[count] == '\n') || (data[count] == '\0'))
3019 buf = &data[count + 1];
3022 GNUNET_free_non_null(data);
3024 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "malicious_getters",
3025 &malicious_getters))
3026 malicious_getters = 0;
3029 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "malicious_putters",
3030 &malicious_putters))
3031 malicious_putters = 0;
3034 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "malicious_droppers",
3035 &malicious_droppers))
3036 malicious_droppers = 0;
3039 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "settle_time",
3043 if (GNUNET_SYSERR ==
3044 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "num_puts",
3046 num_puts = num_peers;
3048 if (GNUNET_SYSERR ==
3049 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "put_replication",
3051 put_replication = DEFAULT_PUT_REPLICATION;
3053 if (GNUNET_SYSERR ==
3054 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "num_gets",
3056 num_gets = num_peers;
3058 if (GNUNET_SYSERR ==
3059 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "get_replication",
3061 get_replication = DEFAULT_GET_REPLICATION;
3064 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "find_peer_delay",
3065 &temp_config_number))
3066 find_peer_delay = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_config_number);
3068 find_peer_delay = DEFAULT_FIND_PEER_DELAY;
3071 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "concurrent_find_peers",
3072 &temp_config_number))
3073 max_outstanding_find_peers = temp_config_number;
3075 max_outstanding_find_peers = DEFAULT_MAX_OUTSTANDING_FIND_PEERS;
3078 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "get_timeout",
3079 &temp_config_number))
3080 get_timeout = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_config_number);
3082 get_timeout = DEFAULT_GET_TIMEOUT;
3085 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "concurrent_puts",
3086 &temp_config_number))
3087 max_outstanding_puts = temp_config_number;
3089 max_outstanding_puts = DEFAULT_MAX_OUTSTANDING_PUTS;
3092 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "concurrent_gets",
3093 &temp_config_number))
3094 max_outstanding_gets = temp_config_number;
3096 max_outstanding_gets = DEFAULT_MAX_OUTSTANDING_GETS;
3099 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "timeout",
3100 &temp_config_number))
3101 all_get_timeout = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_config_number);
3103 all_get_timeout.rel_value = get_timeout.rel_value * num_gets;
3106 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "get_delay",
3107 &temp_config_number))
3108 get_delay = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_config_number);
3110 get_delay = DEFAULT_GET_DELAY;
3113 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "put_delay",
3114 &temp_config_number))
3115 put_delay = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_config_number);
3117 put_delay = DEFAULT_PUT_DELAY;
3120 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "peer_start_timeout",
3121 &temp_config_number))
3122 seconds_per_peer_start = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_config_number);
3124 seconds_per_peer_start = DEFAULT_SECONDS_PER_PEER_START;
3127 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "data_size",
3128 &temp_config_number))
3129 test_data_size = temp_config_number;
3131 test_data_size = DEFAULT_TEST_DATA_SIZE;
3134 * Get testing related options.
3136 if (GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno(cfg, "DHT_TESTING", "REPLICATE_SAME"))
3137 replicate_same = GNUNET_YES;
3140 * Get testing related options.
3142 if (GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno(cfg, "DHT_TESTING", "GET_FROM_SAME"))
3143 get_from_same = GNUNET_YES;
3146 if (GNUNET_NO == GNUNET_CONFIGURATION_get_value_time (cfg, "DHT_TESTING",
3147 "MALICIOUS_GET_FREQUENCY",
3148 &malicious_get_frequency))
3149 malicious_get_frequency = DEFAULT_MALICIOUS_GET_FREQUENCY;
3152 if (GNUNET_NO == GNUNET_CONFIGURATION_get_value_time (cfg, "DHT_TESTING",
3153 "MALICIOUS_PUT_FREQUENCY",
3154 &malicious_put_frequency))
3155 malicious_put_frequency = DEFAULT_MALICIOUS_PUT_FREQUENCY;
3157 if (GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno(cfg, "DHT_TESTING", "MALICIOUS_AFTER_SETTLE"))
3158 malicious_after_settle = GNUNET_YES;
3160 if (GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno(cfg, "DHT_TESTING", "MALICIOUS_SYBIL"))
3162 /* Set up the malicious target at random for this round */
3163 GNUNET_CRYPTO_hash_create_random (GNUNET_CRYPTO_QUALITY_WEAK, &sybil_target);
3164 malicious_sybil = GNUNET_YES;
3167 /* Create the bloomfilter for choosing which peers to set malicious */
3169 /* Bloomfilter size must be 2^k for some integer k */
3171 while (1 << k < malicious_droppers)
3173 if (malicious_droppers > 0)
3174 malicious_bloom = GNUNET_CONTAINER_bloomfilter_init (NULL, 1 << k, DHT_BLOOM_K);
3176 /* The normal behavior of the DHT is to do find peer requests
3177 * on its own. Only if this is explicitly turned off should
3178 * the testing driver issue find peer requests (even though
3179 * this is likely the default when testing).
3182 GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht",
3185 do_find_peer = GNUNET_YES;
3189 GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht",
3192 in_dht_replication = GNUNET_YES;
3195 if (GNUNET_YES != GNUNET_CONFIGURATION_get_value_number (cfg, "DHT_TESTING",
3202 if (GNUNET_YES == GNUNET_CONFIGURATION_get_value_number (cfg, "DHT_TESTING",
3204 &temp_config_number))
3206 find_peer_delay = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_config_number);
3209 find_peer_delay = DEFAULT_FIND_PEER_DELAY;
3211 if (GNUNET_YES != GNUNET_CONFIGURATION_get_value_number(cfg, "DHT_TESTING", "ROUND_DELAY", &round_delay))
3214 if (GNUNET_NO == GNUNET_CONFIGURATION_get_value_number (cfg, "DHT_TESTING",
3215 "OUTSTANDING_FIND_PEERS",
3216 &max_outstanding_find_peers))
3217 max_outstanding_find_peers = DEFAULT_MAX_OUTSTANDING_FIND_PEERS;
3219 if (GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht", "strict_kademlia"))
3220 max_outstanding_find_peers = max_outstanding_find_peers * 1;
3222 find_peer_offset = GNUNET_TIME_relative_divide (find_peer_delay, max_outstanding_find_peers);
3224 if (GNUNET_SYSERR ==
3225 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "num_rounds",
3231 if ((GNUNET_SYSERR ==
3232 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "target_total_connections",
3233 &target_total_connections)) ||
3234 (target_total_connections == 0))
3236 target_total_connections = connection_estimate(num_peers, DEFAULT_BUCKET_SIZE);
3239 topology_str = NULL;
3241 GNUNET_CONFIGURATION_get_value_string(cfg, "testing", "topology",
3242 &topology_str)) && (GNUNET_NO == GNUNET_TESTING_topology_get(&topology, topology_str)))
3244 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
3245 "Invalid topology `%s' given for section %s option %s\n", topology_str, "TESTING", "TOPOLOGY");
3246 topology = GNUNET_TESTING_TOPOLOGY_CLIQUE; /* Defaults to NONE, so set better default here */
3250 GNUNET_CONFIGURATION_get_value_string (cfg, "testing", "percentage",
3251 &topology_percentage_str))
3252 topology_percentage = 0.5;
3255 topology_percentage = atof (topology_percentage_str);
3256 GNUNET_free(topology_percentage_str);
3260 GNUNET_CONFIGURATION_get_value_string (cfg, "testing", "probability",
3261 &topology_probability_str))
3262 topology_probability = 0.5;
3265 topology_probability = atof (topology_probability_str);
3266 GNUNET_free(topology_probability_str);
3270 GNUNET_CONFIGURATION_get_value_string(cfg, "testing", "connect_topology",
3271 &connect_topology_str)) && (GNUNET_NO == GNUNET_TESTING_topology_get(&connect_topology, connect_topology_str)))
3273 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
3274 "Invalid connect topology `%s' given for section %s option %s\n", connect_topology_str, "TESTING", "CONNECT_TOPOLOGY");
3276 GNUNET_free_non_null(connect_topology_str);
3279 GNUNET_CONFIGURATION_get_value_string(cfg, "testing", "connect_topology_option",
3280 &connect_topology_option_str)) && (GNUNET_NO == GNUNET_TESTING_topology_option_get(&connect_topology_option, connect_topology_option_str)))
3282 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
3283 "Invalid connect topology option `%s' given for section %s option %s\n", connect_topology_option_str, "TESTING", "CONNECT_TOPOLOGY_OPTION");
3284 connect_topology_option = GNUNET_TESTING_TOPOLOGY_OPTION_ALL; /* Defaults to NONE, set to ALL */
3286 GNUNET_free_non_null(connect_topology_option_str);
3289 GNUNET_CONFIGURATION_get_value_string (cfg, "testing", "connect_topology_option_modifier",
3290 &connect_topology_option_modifier_string))
3292 if (sscanf(connect_topology_option_modifier_string, "%lf", &connect_topology_option_modifier) != 1)
3294 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
3295 _("Invalid value `%s' for option `%s' in section `%s': expected float\n"),
3296 connect_topology_option_modifier_string,
3297 "connect_topology_option_modifier",
3300 GNUNET_free (connect_topology_option_modifier_string);
3303 if (GNUNET_YES != GNUNET_CONFIGURATION_get_value_string (cfg, "testing", "blacklist_transports",
3304 &blacklist_transports))
3305 blacklist_transports = NULL;
3308 GNUNET_CONFIGURATION_get_value_string(cfg, "testing", "blacklist_topology",
3309 &blacklist_topology_str)) &&
3310 (GNUNET_NO == GNUNET_TESTING_topology_get(&blacklist_topology, blacklist_topology_str)))
3312 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
3313 "Invalid topology `%s' given for section %s option %s\n", topology_str, "TESTING", "BLACKLIST_TOPOLOGY");
3315 GNUNET_free_non_null(topology_str);
3316 GNUNET_free_non_null(blacklist_topology_str);
3318 /* Set peers_left so we know when all peers started */
3319 peers_left = num_peers;
3322 /* Set up a task to end testing if peer start fails */
3323 die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(seconds_per_peer_start, num_peers),
3324 &end_badly, "didn't generate all hostkeys within allowed startup time!");
3326 if (dhtlog_handle == NULL)
3327 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
3328 "dhtlog_handle is NULL!");
3330 trial_info.other_identifier = (unsigned int)trial_to_run;
3331 trial_info.num_nodes = peers_left;
3332 trial_info.topology = topology;
3333 trial_info.blacklist_topology = blacklist_topology;
3334 trial_info.connect_topology = connect_topology;
3335 trial_info.connect_topology_option = connect_topology_option;
3336 trial_info.connect_topology_option_modifier = connect_topology_option_modifier;
3337 trial_info.topology_percentage = topology_percentage;
3338 trial_info.topology_probability = topology_probability;
3339 trial_info.puts = num_puts;
3340 trial_info.gets = num_gets;
3341 trial_info.concurrent = max_outstanding_gets;
3342 trial_info.settle_time = settle_time;
3343 trial_info.num_rounds = total_rounds;
3344 trial_info.malicious_getters = malicious_getters;
3345 trial_info.malicious_putters = malicious_putters;
3346 trial_info.malicious_droppers = malicious_droppers;
3347 trial_info.malicious_get_frequency = malicious_get_frequency.rel_value;
3348 trial_info.malicious_put_frequency = malicious_put_frequency.rel_value;
3349 trial_info.stop_closest = stop_closest;
3350 trial_info.stop_found = stop_found;
3351 trial_info.strict_kademlia = strict_kademlia;
3353 if (trialmessage != NULL)
3354 trial_info.message = trialmessage;
3356 trial_info.message = "";
3358 if (dhtlog_handle != NULL)
3359 dhtlog_handle->insert_trial(&trial_info);
3361 GNUNET_free_non_null(trialmessage);
3363 hostkey_meter = create_meter(peers_left, "Hostkeys created ", GNUNET_YES);
3364 peer_start_meter = create_meter(peers_left, "Peers started ", GNUNET_YES);
3366 put_meter = create_meter(num_puts, "Puts completed ", GNUNET_YES);
3367 get_meter = create_meter(num_gets, "Gets completed ", GNUNET_YES);
3368 pg = GNUNET_TESTING_daemons_start (cfg,
3370 max_outstanding_connections,
3371 GNUNET_TIME_relative_multiply(seconds_per_peer_start, num_peers),
3372 &hostkey_callback, NULL,
3373 &peers_started_callback, NULL,
3374 &topology_callback, NULL,
3377 while (temphost != NULL)
3379 tempnext = temphost->next;
3380 GNUNET_free (temphost->username);
3381 GNUNET_free (temphost->hostname);
3382 GNUNET_free (temphost);
3383 temphost = tempnext;
3388 main (int argc, char *argv[])
3391 struct GNUNET_GETOPT_CommandLineOption options[] = {
3392 GNUNET_GETOPT_OPTION_END
3395 ret = GNUNET_PROGRAM_run (argc,
3396 argv, "gnunet-dht-driver", "nohelp",
3397 options, &run, &ok);
3399 if (malicious_bloom != NULL)
3400 GNUNET_CONTAINER_bloomfilter_free (malicious_bloom);
3402 if (ret != GNUNET_OK)
3404 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "`gnunet-dht-driver': Failed with error code %d\n", ret);
3408 * Need to remove base directory, subdirectories taken care
3409 * of by the testing framework.
3411 if (GNUNET_DISK_directory_remove (test_directory) != GNUNET_OK)
3413 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Failed to remove testing directory %s\n", test_directory);
3418 /* end of gnunet-dht-driver.c */