2 This file is part of GNUnet.
3 (C) 2009 Christian Grothoff (and other contributing authors)
5 GNUnet is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published
7 by the Free Software Foundation; either version 3, or (at your
8 option) any later version.
10 GNUnet is distributed in the hope that it will be useful, but
11 WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with GNUnet; see the file COPYING. If not, write to the
17 Free Software Foundation, Inc., 59 Temple Place - Suite 330,
18 Boston, MA 02111-1307, USA.
21 * @file dht/gnunet-dht-driver.c
22 * @brief Driver for setting up a group of gnunet peers and
23 * then issuing GETS and PUTS on the DHT. Coarse results
24 * are reported, fine grained results (if requested) are
25 * logged to a (mysql) database, or to file.
26 * @author Nathan Evans (who to blame)
29 #ifndef HAVE_MALICIOUS
32 #include "gnunet_testing_lib.h"
33 #include "gnunet_core_service.h"
34 #include "gnunet_dht_service.h"
39 #define VERBOSE GNUNET_NO
41 /* Timeout for entire driver to run */
42 #define DEFAULT_TIMEOUT GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MINUTES, 5)
44 /* Timeout for waiting for (individual) replies to get requests */
45 #define DEFAULT_GET_TIMEOUT GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 90)
47 #define DEFAULT_TOPOLOGY_CAPTURE_TIMEOUT GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 90)
49 /* Timeout for waiting for gets to be sent to the service */
50 #define DEFAULT_GET_DELAY GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 10)
52 /* Timeout for waiting for puts to be sent to the service */
53 #define DEFAULT_PUT_DELAY GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 10)
55 /* Time to allow a find peer request to take */
56 #define DEFAULT_FIND_PEER_DELAY GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 40)
58 /* Time to wait for all peers disconnected due to to churn to actually be removed from system */
59 #define DEFAULT_PEER_DISCONNECT_TIMEOUT GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MINUTES, 5)
61 #define DEFAULT_SECONDS_PER_PEER_START GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 45)
63 #define DEFAULT_TEST_DATA_SIZE 8
65 #define DEFAULT_BUCKET_SIZE 4
67 #define FIND_PEER_THRESHOLD 1
69 /* If more than this many peers are added, slow down sending */
70 #define MAX_FIND_PEER_CUTOFF 4000
72 /* If less than this many peers are added, speed up sending */
73 #define MIN_FIND_PEER_CUTOFF 500
75 #define DEFAULT_MAX_OUTSTANDING_PUTS 10
77 #define DEFAULT_MAX_OUTSTANDING_FIND_PEERS 196
79 #define DEFAULT_FIND_PEER_OFFSET GNUNET_TIME_relative_divide (DEFAULT_FIND_PEER_DELAY, DEFAULT_MAX_OUTSTANDING_FIND_PEERS)
81 #define DEFAULT_MAX_OUTSTANDING_GETS 10
83 #define DEFAULT_CONNECT_TIMEOUT 60
85 #define DEFAULT_TOPOLOGY_TIMEOUT GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MINUTES, 8)
87 #define DEFAULT_RECONNECT_ATTEMPTS 8
90 * Default frequency for sending malicious get messages
92 #define DEFAULT_MALICIOUS_GET_FREQUENCY GNUNET_TIME_UNIT_SECONDS
95 * Default frequency for sending malicious put messages
97 #define DEFAULT_MALICIOUS_PUT_FREQUENCY GNUNET_TIME_UNIT_SECONDS
101 struct MaliciousContext
104 * Handle to DHT service (via the API)
106 struct GNUNET_DHT_Handle *dht_handle;
109 * Handle to the peer daemon
111 struct GNUNET_TESTING_Daemon *daemon;
114 * Task for disconnecting DHT handles
116 GNUNET_SCHEDULER_TaskIdentifier disconnect_task;
119 * What type of malicious to set this peer to.
126 /* This is a linked list */
127 struct TestFindPeer *next;
129 /* Handle to the bigger context */
130 struct FindPeerContext *find_peer_context;
133 * Handle to the peer's DHT service (via the API)
135 struct GNUNET_DHT_Handle *dht_handle;
138 * Handle to the peer daemon
140 struct GNUNET_TESTING_Daemon *daemon;
143 * Task for disconnecting DHT handles
145 GNUNET_SCHEDULER_TaskIdentifier disconnect_task;
148 struct TestPutContext
150 /* This is a linked list */
151 struct TestPutContext *next;
154 * Handle to the first peers DHT service (via the API)
156 struct GNUNET_DHT_Handle *dht_handle;
159 * Handle to the PUT peer daemon
161 struct GNUNET_TESTING_Daemon *daemon;
164 * Identifier for this PUT
169 * Task for disconnecting DHT handles
171 GNUNET_SCHEDULER_TaskIdentifier disconnect_task;
174 struct TestGetContext
176 /* This is a linked list */
177 struct TestGetContext *next;
180 * Handle to the first peers DHT service (via the API)
182 struct GNUNET_DHT_Handle *dht_handle;
185 * Handle for the DHT get request
187 struct GNUNET_DHT_GetHandle *get_handle;
190 * Handle to the GET peer daemon
192 struct GNUNET_TESTING_Daemon *daemon;
195 * Identifier for this GET
200 * Task for disconnecting DHT handles (and stopping GET)
202 GNUNET_SCHEDULER_TaskIdentifier disconnect_task;
205 * Whether or not this request has been fulfilled already.
211 * Simple struct to keep track of progress, and print a
212 * nice little percentage meter for long running tasks.
222 unsigned int completed;
226 char *startup_string;
230 * Linked list of information for populating statistics
231 * before ending trial.
233 struct StatisticsIteratorContext
235 const struct GNUNET_PeerIdentity *peer;
236 unsigned int stat_routes;
237 unsigned int stat_route_forwards;
238 unsigned int stat_results;
239 unsigned int stat_results_to_client;
240 unsigned int stat_result_forwards;
241 unsigned int stat_gets;
242 unsigned int stat_puts;
243 unsigned int stat_puts_inserted;
244 unsigned int stat_find_peer;
245 unsigned int stat_find_peer_start;
246 unsigned int stat_get_start;
247 unsigned int stat_put_start;
248 unsigned int stat_find_peer_reply;
249 unsigned int stat_get_reply;
250 unsigned int stat_find_peer_answer;
251 unsigned int stat_get_response_start;
255 * Context for getting a topology, logging it, and continuing
256 * on with some next operation.
258 struct TopologyIteratorContext
260 unsigned int total_iterations;
261 unsigned int current_iteration;
262 unsigned int total_connections;
263 unsigned int total_peers;
264 struct GNUNET_CONTAINER_MultiHashMap *peers_seen;
265 struct GNUNET_PeerIdentity *peer;
266 GNUNET_SCHEDULER_Task cont;
268 struct GNUNET_TIME_Relative timeout;
274 /** Node in the heap */
275 struct GNUNET_CONTAINER_HeapNode *heap_node;
277 /** Peer the count refers to */
278 struct GNUNET_PeerIdentity peer_id;
280 /** Count of connections this peer has */
285 * Context for sending out find peer requests.
287 struct FindPeerContext
290 * How long to send find peer requests, once the settle time
291 * is over don't send any more out!
293 * TODO: Add option for settle time and find peer sending time?
295 struct GNUNET_TIME_Absolute endtime;
298 * Number of connections in the current topology
299 * (after this round of find peer requests has ended).
301 unsigned int current_peers;
304 * Number of connections in the current topology
305 * (before this round of find peer requests started).
307 unsigned int previous_peers;
310 * Number of find peer requests we have currently
313 unsigned int outstanding;
316 * Number of find peer requests to send in this round.
321 * Number of find peer requests sent last time around.
323 unsigned int last_sent;
326 * Hashmap of peers in the current topology, value
327 * is a PeerCount, with the number of connections
330 struct GNUNET_CONTAINER_MultiHashMap *peer_hash;
333 * Min heap which orders values in the peer_hash for
336 struct GNUNET_CONTAINER_Heap *peer_min_heap;
339 * Callback for counting the peers in the current topology.
341 GNUNET_TESTING_NotifyTopology count_peers_cb;
347 * Next full round (puts + gets).
352 * Next round of gets.
357 * Next round of puts.
362 * Next round of churn.
372 * Timeout to let all GET requests happen.
374 static struct GNUNET_TIME_Relative all_get_timeout;
379 static struct GNUNET_TIME_Relative get_timeout;
382 * Time to allow for GET requests to be sent to service.
384 static struct GNUNET_TIME_Relative get_delay;
387 * Time to allow for PUT requests to be sent to service.
389 static struct GNUNET_TIME_Relative put_delay;
392 * Delay between sending find peer requests (if
393 * handled by the driver, no effect if sent by service).
395 static struct GNUNET_TIME_Relative find_peer_delay;
398 * Time between find peer requests
399 * (find_peer_delay / max_outstanding_find_peer)
401 static struct GNUNET_TIME_Relative find_peer_offset;
404 * How many seconds to allow each peer to start.
406 static struct GNUNET_TIME_Relative seconds_per_peer_start;
409 * Boolean value, should the driver issue find peer requests
410 * (GNUNET_YES) or should it be left to the service (GNUNET_NO)
412 static unsigned int do_find_peer;
415 * Boolean value, should replication be done by the dht
416 * service (GNUNET_YES) or by the driver (GNUNET_NO)
418 static unsigned int in_dht_replication;
421 * Size of test data to insert/retrieve during testing.
423 static unsigned long long test_data_size = DEFAULT_TEST_DATA_SIZE;
426 * Maximum number of concurrent PUT requests.
428 static unsigned long long max_outstanding_puts = DEFAULT_MAX_OUTSTANDING_PUTS;
431 * Maximum number of concurrent GET requests.
433 static unsigned long long max_outstanding_gets = DEFAULT_MAX_OUTSTANDING_GETS;
436 * Number of nodes issuing malicious GET messages.
438 static unsigned long long malicious_getters;
441 * Maximum number of concurrent find peer messages being sent.
443 static unsigned long long max_outstanding_find_peers;
446 * Number of nodes issuing malicious PUT messages.
448 static unsigned long long malicious_putters;
451 * Time (in seconds) to delay between rounds.
453 static unsigned long long round_delay;
456 * How many malicious droppers to seed in the network.
458 static unsigned long long malicious_droppers;
461 * Bloom filter to restrict malicious nodes chosen.
463 struct GNUNET_CONTAINER_BloomFilter *malicious_bloom;
466 * Whether malicious droppers should be chosen based on proximity to a key.
468 static int malicious_sybil;
471 * Target for the malicious sybil nodes (choose the closest to this key).
473 static GNUNET_HashCode sybil_target;
476 * How often to send malicious GET messages.
478 static struct GNUNET_TIME_Relative malicious_get_frequency;
481 * How often to send malicious PUT messages.
483 static struct GNUNET_TIME_Relative malicious_put_frequency;
486 * How long to send find peer requests.
488 static unsigned long long settle_time;
491 * Handle to the dhtlog service.
493 static struct GNUNET_DHTLOG_Handle *dhtlog_handle;
496 * Replication value for GET requests.
498 static unsigned long long get_replication;
501 * Replication value for PUT requests.
503 static unsigned long long put_replication;
506 * If GNUNET_YES, insert data at the same peers every time.
507 * Otherwise, choose a new random peer to insert at each time.
509 static unsigned int replicate_same;
512 * If GNUNET_YES, issue GET requests at the same peers every time.
513 * Otherwise, choose a new random peer/data combination to search
516 static unsigned int get_from_same;
519 * Should malicious peers be set after allowing for settle time?
520 * Default is to set them malicious after initial connection setup.
522 static unsigned int malicious_after_settle;
525 * Number of rounds for testing (PUTS + GETS)
527 static unsigned long long total_rounds;
530 * Target number of connections (will stop sending find peer
531 * messages when this number is exceeded)
533 static unsigned long long target_total_connections;
536 * Number of rounds already run
538 static unsigned int rounds_finished;
541 * Number of rounds of churn to read from the file (first line, should be a single number).
543 static unsigned int churn_rounds;
546 * Current round we are in for churn, tells us how many peers to connect/disconnect.
548 static unsigned int current_churn_round;
551 * Number of times to churn per round
553 static unsigned long long churns_per_round;
556 * Array of churn values.
558 static unsigned int *churn_array;
561 * Hash map of stats contexts.
563 static struct GNUNET_CONTAINER_MultiHashMap *stats_map;
566 * LL of malicious settings.
568 struct MaliciousContext *all_malicious;
571 * List of GETS to perform
573 struct TestGetContext *all_gets;
576 * List of PUTS to perform
578 struct TestPutContext *all_puts;
581 * Directory to store temporary data in, defined in config file
583 static char *test_directory;
586 * Variable used to store the number of connections we should wait for.
588 static unsigned int expected_connections;
591 * Variable used to keep track of how many peers aren't yet started.
593 static unsigned long long peers_left;
596 * Handle to the set of all peers run for this test.
598 static struct GNUNET_TESTING_PeerGroup *pg;
602 * Global config handle.
604 static const struct GNUNET_CONFIGURATION_Handle *config;
607 * Total number of peers to run, set based on config file.
609 static unsigned long long num_peers;
612 * Total number of items to insert.
614 static unsigned long long num_puts;
617 * How many puts do we currently have in flight?
619 static unsigned long long outstanding_puts;
622 * How many puts are done?
624 static unsigned long long puts_completed;
627 * Total number of items to attempt to get.
629 static unsigned long long num_gets;
632 * How many puts do we currently have in flight?
634 static unsigned long long outstanding_gets;
637 * How many gets are done?
639 static unsigned long long gets_completed;
642 * How many gets failed?
644 static unsigned long long gets_failed;
647 * How many malicious control messages do
648 * we currently have in flight?
650 static unsigned long long outstanding_malicious;
653 * How many set malicious peers are done?
655 static unsigned long long malicious_completed;
658 * Global used to count how many connections we have currently
659 * been notified about (how many times has topology_callback been called
662 static unsigned int total_connections;
665 * Global used to count how many failed connections we have
666 * been notified about (how many times has topology_callback
667 * been called with failure?)
669 static unsigned int failed_connections;
671 /* Task handle to use to schedule shutdown if something goes wrong */
672 GNUNET_SCHEDULER_TaskIdentifier die_task;
674 static char *blacklist_transports;
676 static enum GNUNET_TESTING_Topology topology;
678 static enum GNUNET_TESTING_Topology blacklist_topology = GNUNET_TESTING_TOPOLOGY_NONE; /* Don't do any blacklisting */
680 static enum GNUNET_TESTING_Topology connect_topology = GNUNET_TESTING_TOPOLOGY_NONE; /* NONE actually means connect all allowed peers */
682 static enum GNUNET_TESTING_TopologyOption connect_topology_option = GNUNET_TESTING_TOPOLOGY_OPTION_ALL;
684 static double connect_topology_option_modifier = 0.0;
686 static struct ProgressMeter *hostkey_meter;
688 static struct ProgressMeter *peer_start_meter;
690 static struct ProgressMeter *peer_connect_meter;
692 static struct ProgressMeter *put_meter;
694 static struct ProgressMeter *get_meter;
696 static GNUNET_HashCode *known_keys;
698 /* Global return value (0 for success, anything else for failure) */
702 * Create a meter to keep track of the progress of some task.
704 * @param total the total number of items to complete
705 * @param start_string a string to prefix the meter with (if printing)
706 * @param print GNUNET_YES to print the meter, GNUNET_NO to count
709 * @return the progress meter
711 static struct ProgressMeter *
712 create_meter(unsigned int total, char * start_string, int print)
714 struct ProgressMeter *ret;
715 ret = GNUNET_malloc(sizeof(struct ProgressMeter));
718 ret->modnum = total / 4;
719 ret->dotnum = (total / 50) + 1;
720 if (start_string != NULL)
721 ret->startup_string = GNUNET_strdup(start_string);
723 ret->startup_string = GNUNET_strdup("");
729 * Update progress meter (increment by one).
731 * @param meter the meter to update and print info for
733 * @return GNUNET_YES if called the total requested,
734 * GNUNET_NO if more items expected
737 update_meter(struct ProgressMeter *meter)
739 if (meter->print == GNUNET_YES)
741 if (meter->completed % meter->modnum == 0)
743 if (meter->completed == 0)
745 fprintf(stdout, "%sProgress: [0%%", meter->startup_string);
748 fprintf(stdout, "%d%%", (int)(((float)meter->completed / meter->total) * 100));
750 else if (meter->completed % meter->dotnum == 0)
751 fprintf(stdout, ".");
753 if (meter->completed + 1 == meter->total)
754 fprintf(stdout, "%d%%]\n", 100);
759 if (meter->completed == meter->total)
765 * Reset progress meter.
767 * @param meter the meter to reset
769 * @return GNUNET_YES if meter reset,
770 * GNUNET_SYSERR on error
773 reset_meter(struct ProgressMeter *meter)
776 return GNUNET_SYSERR;
778 meter->completed = 0;
783 * Release resources for meter
785 * @param meter the meter to free
788 free_meter(struct ProgressMeter *meter)
790 GNUNET_free_non_null (meter->startup_string);
795 * Check whether peers successfully shut down.
798 shutdown_callback (void *cls,
809 * Task to release DHT handles for PUT
812 put_disconnect_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
814 struct TestPutContext *test_put = cls;
815 test_put->disconnect_task = GNUNET_SCHEDULER_NO_TASK;
816 GNUNET_DHT_disconnect(test_put->dht_handle);
817 test_put->dht_handle = NULL;
818 if (replicate_same == GNUNET_NO)
819 test_put->daemon = GNUNET_TESTING_daemon_get(pg, GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers));
823 * Function scheduled to be run on the successful completion of this
827 finish_testing (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
829 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Ending test normally!\n", (char *)cls);
830 GNUNET_assert (pg != NULL);
831 struct TestPutContext *test_put = all_puts;
832 struct TestGetContext *test_get = all_gets;
834 while (test_put != NULL)
836 if (test_put->disconnect_task != GNUNET_SCHEDULER_NO_TASK)
837 GNUNET_SCHEDULER_cancel(test_put->disconnect_task);
838 if (test_put->dht_handle != NULL)
839 GNUNET_DHT_disconnect(test_put->dht_handle);
840 test_put = test_put->next;
843 while (test_get != NULL)
845 if (test_get->disconnect_task != GNUNET_SCHEDULER_NO_TASK)
846 GNUNET_SCHEDULER_cancel(test_get->disconnect_task);
847 if (test_get->get_handle != NULL)
848 GNUNET_DHT_get_stop(test_get->get_handle);
849 if (test_get->dht_handle != NULL)
850 GNUNET_DHT_disconnect(test_get->dht_handle);
851 test_get = test_get->next;
854 GNUNET_TESTING_daemons_stop (pg, DEFAULT_TIMEOUT, &shutdown_callback, NULL);
856 if (dhtlog_handle != NULL)
858 fprintf(stderr, "Update trial endtime\n");
859 dhtlog_handle->update_trial (gets_completed);
860 GNUNET_DHTLOG_disconnect(dhtlog_handle);
861 dhtlog_handle = NULL;
864 if (hostkey_meter != NULL)
865 free_meter(hostkey_meter);
866 if (peer_start_meter != NULL)
867 free_meter(peer_start_meter);
868 if (peer_connect_meter != NULL)
869 free_meter(peer_connect_meter);
870 if (put_meter != NULL)
871 free_meter(put_meter);
872 if (get_meter != NULL)
873 free_meter(get_meter);
879 * Callback for iterating over all the peer connections of a peer group.
882 log_topology_cb (void *cls,
883 const struct GNUNET_PeerIdentity *first,
884 const struct GNUNET_PeerIdentity *second,
887 struct TopologyIteratorContext *topo_ctx = cls;
888 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "log_topology_cb\n");
889 if ((first != NULL) && (second != NULL))
891 /* GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "According to CORE, peer %s is connected to %s\n", GNUNET_i2s(first), GNUNET_h2s(&second->hashPubKey));*/
892 if ((topo_ctx->peers_seen != NULL) && (GNUNET_NO == GNUNET_CONTAINER_multihashmap_contains(topo_ctx->peers_seen, &first->hashPubKey)))
894 GNUNET_CONTAINER_multihashmap_put(topo_ctx->peers_seen, &first->hashPubKey, NULL, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
895 topo_ctx->total_peers++;
897 topo_ctx->total_connections++;
898 if (GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno(config, "dht_testing", "mysql_logging"))
899 dhtlog_handle->insert_extended_topology(first, second);
903 GNUNET_assert(dhtlog_handle != NULL);
904 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);
905 dhtlog_handle->update_topology(topo_ctx->total_connections);
906 if (topo_ctx->cont != NULL)
907 GNUNET_SCHEDULER_add_now (topo_ctx->cont, topo_ctx->cls);
908 if (topo_ctx->peers_seen != NULL)
909 GNUNET_CONTAINER_multihashmap_destroy(topo_ctx->peers_seen);
910 GNUNET_free(topo_ctx);
915 * Iterator over hash map entries.
917 * @param cls closure - always NULL
918 * @param key current key code
919 * @param value value in the hash map, a stats context
920 * @return GNUNET_YES if we should continue to
924 static int stats_iterate (void *cls,
925 const GNUNET_HashCode * key,
928 struct StatisticsIteratorContext *stats_ctx;
932 dhtlog_handle->insert_stat(stats_ctx->peer, stats_ctx->stat_routes, stats_ctx->stat_route_forwards, stats_ctx->stat_results,
933 stats_ctx->stat_results_to_client, stats_ctx->stat_result_forwards, stats_ctx->stat_gets,
934 stats_ctx->stat_puts, stats_ctx->stat_puts_inserted, stats_ctx->stat_find_peer,
935 stats_ctx->stat_find_peer_start, stats_ctx->stat_get_start, stats_ctx->stat_put_start,
936 stats_ctx->stat_find_peer_reply, stats_ctx->stat_get_reply, stats_ctx->stat_find_peer_answer,
937 stats_ctx->stat_get_response_start);
938 GNUNET_free(stats_ctx);
943 stats_finished (void *cls, int result)
945 fprintf(stderr, "Finished getting all peers statistics, iterating!\n");
946 GNUNET_CONTAINER_multihashmap_iterate(stats_map, &stats_iterate, NULL);
947 GNUNET_CONTAINER_multihashmap_destroy(stats_map);
948 GNUNET_SCHEDULER_add_now (&finish_testing, NULL);
952 * Callback function to process statistic values.
955 * @param peer the peer the statistics belong to
956 * @param subsystem name of subsystem that created the statistic
957 * @param name the name of the datum
958 * @param value the current value
959 * @param is_persistent GNUNET_YES if the value is persistent, GNUNET_NO if not
960 * @return GNUNET_OK to continue, GNUNET_SYSERR to abort iteration
962 static int stats_handle (void *cls,
963 const struct GNUNET_PeerIdentity *peer,
964 const char *subsystem,
969 struct StatisticsIteratorContext *stats_ctx;
971 if (dhtlog_handle != NULL)
972 dhtlog_handle->add_generic_stat(peer, name, subsystem, value);
973 if (GNUNET_CONTAINER_multihashmap_contains(stats_map, &peer->hashPubKey))
975 stats_ctx = GNUNET_CONTAINER_multihashmap_get(stats_map, &peer->hashPubKey);
979 stats_ctx = GNUNET_malloc(sizeof(struct StatisticsIteratorContext));
980 stats_ctx->peer = peer;
981 GNUNET_CONTAINER_multihashmap_put(stats_map, &peer->hashPubKey, stats_ctx, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
983 GNUNET_assert(stats_ctx != NULL);
985 if (strcmp(name, STAT_ROUTES) == 0)
986 stats_ctx->stat_routes = value;
987 else if (strcmp(name, STAT_ROUTE_FORWARDS) == 0)
988 stats_ctx->stat_route_forwards = value;
989 else if (strcmp(name, STAT_RESULTS) == 0)
990 stats_ctx->stat_results = value;
991 else if (strcmp(name, STAT_RESULTS_TO_CLIENT) == 0)
992 stats_ctx->stat_results_to_client = value;
993 else if (strcmp(name, STAT_RESULT_FORWARDS) == 0)
994 stats_ctx->stat_result_forwards = value;
995 else if (strcmp(name, STAT_GETS) == 0)
996 stats_ctx->stat_gets = value;
997 else if (strcmp(name, STAT_PUTS) == 0)
998 stats_ctx->stat_puts = value;
999 else if (strcmp(name, STAT_PUTS_INSERTED) == 0)
1000 stats_ctx->stat_puts_inserted = value;
1001 else if (strcmp(name, STAT_FIND_PEER) == 0)
1002 stats_ctx->stat_find_peer = value;
1003 else if (strcmp(name, STAT_FIND_PEER_START) == 0)
1004 stats_ctx->stat_find_peer_start = value;
1005 else if (strcmp(name, STAT_GET_START) == 0)
1006 stats_ctx->stat_get_start = value;
1007 else if (strcmp(name, STAT_PUT_START) == 0)
1008 stats_ctx->stat_put_start = value;
1009 else if (strcmp(name, STAT_FIND_PEER_REPLY) == 0)
1010 stats_ctx->stat_find_peer_reply = value;
1011 else if (strcmp(name, STAT_GET_REPLY) == 0)
1012 stats_ctx->stat_get_reply = value;
1013 else if (strcmp(name, STAT_FIND_PEER_ANSWER) == 0)
1014 stats_ctx->stat_find_peer_answer = value;
1015 else if (strcmp(name, STAT_GET_RESPONSE_START) == 0)
1016 stats_ctx->stat_get_response_start = value;
1022 * Connect to statistics service for each peer and get the appropriate
1023 * dht statistics for safe keeping.
1026 log_dht_statistics (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1028 stats_map = GNUNET_CONTAINER_multihashmap_create(num_peers);
1029 fprintf(stderr, "Starting statistics logging\n");
1030 GNUNET_TESTING_get_statistics(pg, &stats_finished, &stats_handle, NULL);
1035 * Connect to all peers in the peer group and iterate over their
1039 capture_current_topology (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1041 struct TopologyIteratorContext *topo_ctx = cls;
1042 dhtlog_handle->insert_topology(0);
1043 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Called capture_current_topology\n");
1044 GNUNET_TESTING_get_topology (pg, &log_topology_cb, topo_ctx);
1049 * Check if the get_handle is being used, if so stop the request. Either
1050 * way, schedule the end_badly_cont function which actually shuts down the
1054 end_badly (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1056 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Failing test with error: `%s'!\n", (char *)cls);
1058 struct TestPutContext *test_put = all_puts;
1059 struct TestGetContext *test_get = all_gets;
1061 while (test_put != NULL)
1063 if (test_put->disconnect_task != GNUNET_SCHEDULER_NO_TASK)
1064 GNUNET_SCHEDULER_cancel(test_put->disconnect_task);
1065 if (test_put->dht_handle != NULL)
1066 GNUNET_DHT_disconnect(test_put->dht_handle);
1067 test_put = test_put->next;
1070 while (test_get != NULL)
1072 if (test_get->disconnect_task != GNUNET_SCHEDULER_NO_TASK)
1073 GNUNET_SCHEDULER_cancel(test_get->disconnect_task);
1074 if (test_get->get_handle != NULL)
1075 GNUNET_DHT_get_stop(test_get->get_handle);
1076 if (test_get->dht_handle != NULL)
1077 GNUNET_DHT_disconnect(test_get->dht_handle);
1078 test_get = test_get->next;
1081 GNUNET_TESTING_daemons_stop (pg, DEFAULT_TIMEOUT, &shutdown_callback, NULL);
1083 if (dhtlog_handle != NULL)
1085 fprintf(stderr, "Update trial endtime\n");
1086 dhtlog_handle->update_trial (gets_completed);
1087 GNUNET_DHTLOG_disconnect(dhtlog_handle);
1088 dhtlog_handle = NULL;
1091 if (hostkey_meter != NULL)
1092 free_meter(hostkey_meter);
1093 if (peer_start_meter != NULL)
1094 free_meter(peer_start_meter);
1095 if (peer_connect_meter != NULL)
1096 free_meter(peer_connect_meter);
1097 if (put_meter != NULL)
1098 free_meter(put_meter);
1099 if (get_meter != NULL)
1100 free_meter(get_meter);
1106 * Forward declaration.
1109 do_put (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc);
1112 * Forward declaration.
1115 do_get (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc);
1118 * Iterator over hash map entries.
1120 * @param cls closure
1121 * @param key current key code
1122 * @param value value in the hash map
1123 * @return GNUNET_YES if we should continue to
1127 static int remove_peer_count (void *cls,
1128 const GNUNET_HashCode * key,
1131 struct FindPeerContext *find_peer_ctx = cls;
1132 struct PeerCount *peer_count = value;
1133 GNUNET_CONTAINER_heap_remove_node(find_peer_ctx->peer_min_heap, peer_count->heap_node);
1134 GNUNET_free(peer_count);
1140 * Connect to all peers in the peer group and iterate over their
1144 count_new_peers (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1146 struct FindPeerContext *find_peer_context = cls;
1147 find_peer_context->previous_peers = find_peer_context->current_peers;
1148 find_peer_context->current_peers = 0;
1149 GNUNET_TESTING_get_topology (pg, find_peer_context->count_peers_cb, find_peer_context);
1153 decrement_find_peers (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1155 struct TestFindPeer *test_find_peer = cls;
1156 GNUNET_assert(test_find_peer->find_peer_context->outstanding > 0);
1157 test_find_peer->find_peer_context->outstanding--;
1158 test_find_peer->find_peer_context->total--;
1159 if (0 == test_find_peer->find_peer_context->total)
1161 GNUNET_SCHEDULER_add_now(&count_new_peers, test_find_peer->find_peer_context);
1163 GNUNET_free(test_find_peer);
1167 * A find peer request has been sent to the server, now we will schedule a task
1168 * to wait the appropriate time to allow the request to go out and back.
1170 * @param cls closure - a TestFindPeer struct
1171 * @param tc context the task is being called with
1174 handle_find_peer_sent (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1176 struct TestFindPeer *test_find_peer = cls;
1178 GNUNET_DHT_disconnect(test_find_peer->dht_handle);
1179 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_divide(find_peer_delay, 2), &decrement_find_peers, test_find_peer);
1184 send_find_peer_request (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1186 struct TestFindPeer *test_find_peer = cls;
1188 if (test_find_peer->find_peer_context->outstanding > max_outstanding_find_peers)
1190 GNUNET_SCHEDULER_add_delayed(find_peer_offset, &send_find_peer_request, test_find_peer);
1194 test_find_peer->find_peer_context->outstanding++;
1195 if (GNUNET_TIME_absolute_get_remaining(test_find_peer->find_peer_context->endtime).rel_value == 0)
1197 GNUNET_SCHEDULER_add_now(&decrement_find_peers, test_find_peer);
1201 test_find_peer->dht_handle = GNUNET_DHT_connect(test_find_peer->daemon->cfg, 1);
1202 GNUNET_assert(test_find_peer->dht_handle != NULL);
1203 GNUNET_DHT_find_peers (test_find_peer->dht_handle,
1204 &handle_find_peer_sent, test_find_peer);
1209 * Add a connection to the find_peer_context given. This may
1210 * be complete overkill, but allows us to choose the peers with
1211 * the least connections to initiate find peer requests from.
1213 static void add_new_connection(struct FindPeerContext *find_peer_context,
1214 const struct GNUNET_PeerIdentity *first,
1215 const struct GNUNET_PeerIdentity *second)
1217 struct PeerCount *first_count;
1218 struct PeerCount *second_count;
1220 if (GNUNET_CONTAINER_multihashmap_contains(find_peer_context->peer_hash, &first->hashPubKey))
1222 first_count = GNUNET_CONTAINER_multihashmap_get(find_peer_context->peer_hash, &first->hashPubKey);
1223 GNUNET_assert(first_count != NULL);
1224 first_count->count++;
1225 GNUNET_CONTAINER_heap_update_cost(find_peer_context->peer_min_heap, first_count->heap_node, first_count->count);
1229 first_count = GNUNET_malloc(sizeof(struct PeerCount));
1230 first_count->count = 1;
1231 memcpy(&first_count->peer_id, first, sizeof(struct GNUNET_PeerIdentity));
1232 first_count->heap_node = GNUNET_CONTAINER_heap_insert(find_peer_context->peer_min_heap, first_count, first_count->count);
1233 GNUNET_CONTAINER_multihashmap_put(find_peer_context->peer_hash, &first->hashPubKey, first_count, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
1236 if (GNUNET_CONTAINER_multihashmap_contains(find_peer_context->peer_hash, &second->hashPubKey))
1238 second_count = GNUNET_CONTAINER_multihashmap_get(find_peer_context->peer_hash, &second->hashPubKey);
1239 GNUNET_assert(second_count != NULL);
1240 second_count->count++;
1241 GNUNET_CONTAINER_heap_update_cost(find_peer_context->peer_min_heap, second_count->heap_node, second_count->count);
1245 second_count = GNUNET_malloc(sizeof(struct PeerCount));
1246 second_count->count = 1;
1247 memcpy(&second_count->peer_id, second, sizeof(struct GNUNET_PeerIdentity));
1248 second_count->heap_node = GNUNET_CONTAINER_heap_insert(find_peer_context->peer_min_heap, second_count, second_count->count);
1249 GNUNET_CONTAINER_multihashmap_put(find_peer_context->peer_hash, &second->hashPubKey, second_count, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
1255 * Iterate over min heap of connections per peer. For any
1256 * peer that has 0 connections, attempt to connect them to
1259 * @param cls closure a struct FindPeerContext
1260 * @param node internal node of the heap
1261 * @param element value stored, a struct PeerCount
1262 * @param cost cost associated with the node
1263 * @return GNUNET_YES if we should continue to iterate,
1266 static int iterate_min_heap_peers (void *cls,
1267 struct GNUNET_CONTAINER_HeapNode *node,
1269 GNUNET_CONTAINER_HeapCostType cost)
1271 struct FindPeerContext *find_peer_context = cls;
1272 struct PeerCount *peer_count = element;
1273 struct GNUNET_TESTING_Daemon *d1;
1274 struct GNUNET_TESTING_Daemon *d2;
1275 struct GNUNET_TIME_Relative timeout;
1278 d1 = GNUNET_TESTING_daemon_get_by_id (pg, &peer_count->peer_id);
1279 GNUNET_assert(d1 != NULL);
1281 while ((d2 == d1) || (GNUNET_YES != GNUNET_TESTING_daemon_running(d2)))
1283 d2 = GNUNET_TESTING_daemon_get(pg, GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers));
1284 GNUNET_assert(d2 != NULL);
1287 /** Just try to connect the peers, don't worry about callbacks, etc. **/
1288 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);
1289 timeout = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, DEFAULT_CONNECT_TIMEOUT);
1290 if (GNUNET_TIME_relative_to_absolute(timeout).abs_value > find_peer_context->endtime.abs_value)
1292 timeout = GNUNET_TIME_absolute_get_remaining(find_peer_context->endtime);
1294 GNUNET_TESTING_daemons_connect(d1, d2, timeout, DEFAULT_RECONNECT_ATTEMPTS, NULL, NULL);
1296 if (GNUNET_TIME_absolute_get_remaining(find_peer_context->endtime).rel_value > 0)
1303 * Forward declaration.
1306 schedule_churn_find_peer_requests (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc);
1309 * Callback for iterating over all the peer connections of a peer group.
1310 * Used after we have churned on some peers to find which ones have zero
1311 * connections so we can make them issue find peer requests.
1314 count_peers_churn_cb (void *cls,
1315 const struct GNUNET_PeerIdentity *first,
1316 const struct GNUNET_PeerIdentity *second,
1319 struct FindPeerContext *find_peer_context = cls;
1320 struct TopologyIteratorContext *topo_ctx;
1321 struct PeerCount *peer_count;
1323 if ((first != NULL) && (second != NULL))
1325 add_new_connection(find_peer_context, first, second);
1326 find_peer_context->current_peers++;
1330 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Peer count finished (%u connections)\n",
1331 find_peer_context->current_peers);
1332 peer_count = GNUNET_CONTAINER_heap_peek(find_peer_context->peer_min_heap);
1333 GNUNET_assert(peer_count != NULL);
1334 /* 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. */
1335 /* NO they won't, because we have disabled peerinfo writing to disk (remember?) so we WILL have to give them new connections */
1336 /* Best course of action: have DHT automatically try to add peers from peerinfo on startup. This way IF peerinfo writes to file
1337 * then some peers will end up connected.
1339 * Also, find any peers that have zero connections here and set up a task to choose at random another peer in the network to
1340 * 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
1341 * until they get a peer.
1343 /* However, they won't automatically be connected to any of their previous peers... How can we handle that? */
1344 /* So now we have choices: do we want them to come back with all their connections? Probably not, but it solves this mess. */
1346 /* Second problem, which is still a problem, is that a FIND_PEER request won't work when a peer has no connections */
1349 * Okay, so here's how this *should* work now.
1351 * 1. We check the min heap for any peers that have 0 connections.
1352 * a. If any are found, we iterate over the heap and just randomly
1353 * choose another peer and ask testing to please connect the two.
1354 * This takes care of the case that a peer just randomly joins the
1355 * network. However, if there are strict topology restrictions
1356 * (imagine a ring) choosing randomly most likely won't help.
1357 * We make sure the connection attempt doesn't take longer than
1358 * the total timeout, but don't care too much about the result.
1359 * b. After that, we still schedule the find peer requests (concurrently
1360 * with the connect attempts most likely). This handles the case
1361 * that the DHT iterates over peerinfo and just needs to try to send
1362 * a message to get connected. This should handle the case that the
1363 * topology is very strict.
1365 * 2. If all peers have > 0 connections, we still send find peer requests
1366 * as long as possible (until timeout is reached) to help out those
1367 * peers that were newly churned and need more connections. This is because
1368 * once all new peers have established a single connection, they won't be
1371 * 3. Once we reach the timeout, we can do no more. We must schedule the
1372 * next iteration of get requests regardless of connections that peers
1373 * may or may not have.
1375 * Caveat: it would be nice to get peers to take data offline with them and
1376 * come back with it (or not) based on the testing framework. The
1377 * same goes for remembering previous connections, but putting either
1378 * into the general testing churn options seems like overkill because
1379 * these are very specialized cases.
1381 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);
1382 if ((peer_count->count == 0) && (GNUNET_TIME_absolute_get_remaining(find_peer_context->endtime).rel_value > 0))
1384 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Found peer with no connections, will choose some peer(s) at random to connect to!\n");
1385 GNUNET_CONTAINER_heap_iterate (find_peer_context->peer_min_heap, &iterate_min_heap_peers, find_peer_context);
1386 GNUNET_SCHEDULER_add_now(&schedule_churn_find_peer_requests, find_peer_context);
1388 else if ((GNUNET_TIME_absolute_get_remaining(find_peer_context->endtime).rel_value > 0) && (find_peer_context->last_sent != 0))
1390 GNUNET_SCHEDULER_add_now(&schedule_churn_find_peer_requests, find_peer_context);
1394 GNUNET_CONTAINER_multihashmap_iterate(find_peer_context->peer_hash, &remove_peer_count, find_peer_context);
1395 GNUNET_CONTAINER_multihashmap_destroy(find_peer_context->peer_hash);
1396 GNUNET_CONTAINER_heap_destroy(find_peer_context->peer_min_heap);
1397 GNUNET_free(find_peer_context);
1398 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Churn round %u of %llu finished, scheduling next GET round.\n", current_churn_round, churn_rounds);
1399 if (dhtlog_handle != NULL)
1401 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
1402 topo_ctx->cont = &do_get;
1403 topo_ctx->cls = all_gets;
1404 topo_ctx->timeout = DEFAULT_GET_TIMEOUT;
1405 topo_ctx->peers_seen = GNUNET_CONTAINER_multihashmap_create(num_peers);
1406 die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_add(GNUNET_TIME_relative_add(DEFAULT_GET_TIMEOUT, all_get_timeout), DEFAULT_TOPOLOGY_CAPTURE_TIMEOUT),
1407 &end_badly, "from do gets (count_peers_churn_cb)");
1408 GNUNET_SCHEDULER_add_now(&capture_current_topology, topo_ctx);
1412 die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_add(GNUNET_TIME_relative_add(DEFAULT_GET_TIMEOUT, all_get_timeout), DEFAULT_TOPOLOGY_CAPTURE_TIMEOUT),
1413 &end_badly, "from do gets (count_peers_churn_cb)");
1414 GNUNET_SCHEDULER_add_now(&do_get, all_gets);
1421 * Set up a single find peer request for each peer in the topology. Do this
1422 * until the settle time is over, limited by the number of outstanding requests
1423 * and the time allowed for each one!
1426 schedule_churn_find_peer_requests (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1428 struct FindPeerContext *find_peer_ctx = cls;
1429 struct TestFindPeer *test_find_peer;
1430 struct PeerCount *peer_count;
1433 if (find_peer_ctx->previous_peers == 0) /* First time, go slowly */
1434 find_peer_ctx->total = 1;
1435 else if (find_peer_ctx->current_peers - find_peer_ctx->previous_peers < MIN_FIND_PEER_CUTOFF)
1436 find_peer_ctx->total = find_peer_ctx->total / 2;
1437 else if (find_peer_ctx->current_peers - find_peer_ctx->previous_peers > MAX_FIND_PEER_CUTOFF) /* Found LOTS of peers, still go slowly */
1438 find_peer_ctx->total = find_peer_ctx->last_sent - (find_peer_ctx->last_sent / 4);
1440 find_peer_ctx->total = find_peer_ctx->last_sent * 4;
1442 if (find_peer_ctx->total > max_outstanding_find_peers)
1443 find_peer_ctx->total = max_outstanding_find_peers;
1445 find_peer_ctx->last_sent = find_peer_ctx->total;
1446 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Sending %u find peer messages (after churn)\n", find_peer_ctx->total);
1448 if (find_peer_ctx->total > 0)
1449 find_peer_offset = GNUNET_TIME_relative_divide(find_peer_delay, find_peer_ctx->total);
1452 find_peer_ctx->previous_peers = find_peer_ctx->current_peers;
1453 find_peer_ctx->current_peers = 0;
1454 GNUNET_TESTING_get_topology (pg, &count_peers_churn_cb, find_peer_ctx);
1458 for (i = 0; i < find_peer_ctx->total; i++)
1460 test_find_peer = GNUNET_malloc(sizeof(struct TestFindPeer));
1461 /* If we have sent requests, choose peers with a low number of connections to send requests from */
1462 peer_count = GNUNET_CONTAINER_heap_remove_root(find_peer_ctx->peer_min_heap);
1463 GNUNET_assert(peer_count != NULL);
1464 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Sending find peer request from peer with %u connections\n", peer_count->count);
1465 GNUNET_CONTAINER_multihashmap_remove(find_peer_ctx->peer_hash, &peer_count->peer_id.hashPubKey, peer_count);
1466 test_find_peer->daemon = GNUNET_TESTING_daemon_get_by_id(pg, &peer_count->peer_id);
1467 GNUNET_assert(test_find_peer->daemon != NULL);
1468 test_find_peer->find_peer_context = find_peer_ctx;
1469 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_multiply(find_peer_offset, i), &send_find_peer_request, test_find_peer);
1472 if ((find_peer_ctx->peer_hash == NULL) && (find_peer_ctx->peer_min_heap == NULL))
1474 find_peer_ctx->peer_hash = GNUNET_CONTAINER_multihashmap_create(num_peers);
1475 find_peer_ctx->peer_min_heap = GNUNET_CONTAINER_heap_create(GNUNET_CONTAINER_HEAP_ORDER_MIN);
1479 GNUNET_CONTAINER_multihashmap_iterate(find_peer_ctx->peer_hash, &remove_peer_count, find_peer_ctx);
1480 GNUNET_CONTAINER_multihashmap_destroy(find_peer_ctx->peer_hash);
1481 find_peer_ctx->peer_hash = GNUNET_CONTAINER_multihashmap_create(num_peers);
1484 GNUNET_assert(0 == GNUNET_CONTAINER_multihashmap_size(find_peer_ctx->peer_hash));
1485 GNUNET_assert(0 == GNUNET_CONTAINER_heap_get_size(find_peer_ctx->peer_min_heap));
1488 static void schedule_churn_get_topology (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1490 struct FindPeerContext *find_peer_context = cls;
1491 GNUNET_TESTING_get_topology (pg, &count_peers_churn_cb, find_peer_context);
1495 * Called when churning of the topology has finished.
1497 * @param cls closure unused
1498 * @param emsg NULL on success, or a printable error on failure
1500 static void churn_complete (void *cls, const char *emsg)
1502 struct FindPeerContext *find_peer_context = cls;
1503 struct PeerCount *peer_count;
1505 struct GNUNET_TESTING_Daemon *temp_daemon;
1506 struct TopologyIteratorContext *topo_ctx;
1507 struct GNUNET_TIME_Relative calc_timeout;
1512 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Ending test, churning of peers failed with error `%s'", emsg);
1513 GNUNET_SCHEDULER_add_now(&end_badly, (void *)emsg);
1518 * If we switched any peers on, we have to somehow force connect the new peer to
1519 * SOME bootstrap peer in the network. First schedule a task to find all peers
1520 * with no connections, then choose a random peer for each and connect them.
1522 if (find_peer_context != NULL)
1524 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "We have churned on some peers, so we must schedule find peer requests for them!\n");
1526 for (i = 0; i < num_peers; i ++)
1528 temp_daemon = GNUNET_TESTING_daemon_get(pg, i);
1529 if (GNUNET_YES == GNUNET_TESTING_daemon_running(temp_daemon))
1531 peer_count = GNUNET_malloc (sizeof(struct PeerCount));
1532 memcpy(&peer_count->peer_id, &temp_daemon->id, sizeof(struct GNUNET_PeerIdentity));
1533 GNUNET_assert(peer_count->count == 0);
1534 peer_count->heap_node = GNUNET_CONTAINER_heap_insert(find_peer_context->peer_min_heap, peer_count, peer_count->count);
1535 GNUNET_CONTAINER_multihashmap_put(find_peer_context->peer_hash, &temp_daemon->id.hashPubKey, peer_count, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
1539 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));
1540 GNUNET_SCHEDULER_add_delayed(DEFAULT_PEER_DISCONNECT_TIMEOUT, &schedule_churn_get_topology, find_peer_context);
1541 //GNUNET_TESTING_get_topology (pg, &count_peers_churn_cb, find_peer_context);
1545 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");
1546 if (dhtlog_handle != NULL)
1548 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
1549 topo_ctx->cont = &do_get;
1550 topo_ctx->cls = all_gets;
1551 topo_ctx->timeout = DEFAULT_GET_TIMEOUT;
1552 topo_ctx->peers_seen = GNUNET_CONTAINER_multihashmap_create(num_peers);
1553 calc_timeout = GNUNET_TIME_relative_add(DEFAULT_GET_TIMEOUT, all_get_timeout);
1554 calc_timeout = GNUNET_TIME_relative_add(calc_timeout, DEFAULT_TOPOLOGY_CAPTURE_TIMEOUT);
1555 calc_timeout = GNUNET_TIME_relative_add(calc_timeout, DEFAULT_PEER_DISCONNECT_TIMEOUT);
1556 die_task = GNUNET_SCHEDULER_add_delayed (calc_timeout,
1557 &end_badly, "from do gets (churn_complete)");
1558 GNUNET_SCHEDULER_add_delayed(DEFAULT_PEER_DISCONNECT_TIMEOUT, &capture_current_topology, topo_ctx);
1562 calc_timeout = GNUNET_TIME_relative_add(DEFAULT_GET_TIMEOUT, all_get_timeout);
1563 calc_timeout = GNUNET_TIME_relative_add(calc_timeout, DEFAULT_PEER_DISCONNECT_TIMEOUT);
1564 die_task = GNUNET_SCHEDULER_add_delayed (calc_timeout,
1565 &end_badly, "from do gets (churn_complete)");
1566 if (dhtlog_handle != NULL)
1567 dhtlog_handle->insert_round(DHT_ROUND_GET, rounds_finished);
1568 GNUNET_SCHEDULER_add_delayed(DEFAULT_PEER_DISCONNECT_TIMEOUT, &do_get, all_gets);
1574 * Decide how many peers to turn on or off in this round, make sure the
1575 * numbers actually make sense, then do so. This function sets in motion
1576 * churn, find peer requests for newly joined peers, and issuing get
1577 * requests once the new peers have done so.
1579 * @param cls closure (unused)
1580 * @param tc task context (unused)
1583 churn_peers (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1585 unsigned int count_running;
1586 unsigned int churn_up;
1587 unsigned int churn_down;
1588 struct GNUNET_TIME_Relative timeout;
1589 struct FindPeerContext *find_peer_context;
1591 churn_up = churn_down = 0;
1592 count_running = GNUNET_TESTING_daemons_running(pg);
1593 if (count_running > churn_array[current_churn_round])
1594 churn_down = count_running - churn_array[current_churn_round];
1595 else if (count_running < churn_array[current_churn_round])
1596 churn_up = churn_array[current_churn_round] - count_running;
1598 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Not churning any peers, topology unchanged.\n");
1600 if (churn_up > num_peers - count_running)
1602 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Churn file specified %u peers (up); only have %u!", churn_array[current_churn_round], num_peers);
1603 churn_up = num_peers - count_running;
1605 else if (churn_down > count_running)
1607 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Churn file specified %u peers (down); only have %u!", churn_array[current_churn_round], count_running);
1608 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "This will leave NO peers running (mistake in churn configuration?)!");
1609 churn_down = count_running;
1611 //timeout = GNUNET_TIME_relative_multiply(seconds_per_peer_start, churn_up > 0 ? churn_up : churn_down);
1612 //timeout = GNUNET_TIME_relative_multiply (seconds_per_peer_start, churn_up > 0 ? churn_up : churn_down);
1613 timeout = GNUNET_TIME_relative_multiply(DEFAULT_TIMEOUT, 2); /* FIXME: Lack of intelligent choice here */
1614 find_peer_context = NULL;
1615 if (churn_up > 0) /* Only need to do find peer requests if we turned new peers on */
1617 find_peer_context = GNUNET_malloc(sizeof(struct FindPeerContext));
1618 find_peer_context->count_peers_cb = &count_peers_churn_cb;
1619 find_peer_context->previous_peers = 0;
1620 find_peer_context->current_peers = 0;
1621 find_peer_context->endtime = GNUNET_TIME_relative_to_absolute(timeout);
1622 find_peer_context->peer_hash = GNUNET_CONTAINER_multihashmap_create(num_peers);
1623 find_peer_context->peer_min_heap = GNUNET_CONTAINER_heap_create(GNUNET_CONTAINER_HEAP_ORDER_MIN);
1625 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "churn_peers: want %u total, %u running, starting %u, stopping %u\n",
1626 churn_array[current_churn_round], count_running, churn_up, churn_down);
1627 GNUNET_TESTING_daemons_churn (pg, churn_down, churn_up, timeout, &churn_complete, find_peer_context);
1628 current_churn_round++;
1632 * Task to release DHT handle associated with GET request.
1635 get_stop_finished (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1637 struct TestGetContext *test_get = cls;
1638 struct TopologyIteratorContext *topo_ctx;
1640 /* The dht_handle may be null if this get was scheduled from a down peer */
1641 if (test_get->dht_handle != NULL)
1643 GNUNET_DHT_disconnect(test_get->dht_handle);
1644 outstanding_gets--; /* GET is really finished */
1645 test_get->dht_handle = NULL;
1648 /* Reset the uid (which item to search for) and the daemon (which peer to search from) for later get request iterations */
1649 if (get_from_same == GNUNET_NO)
1651 test_get->uid = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_puts);
1652 test_get->daemon = GNUNET_TESTING_daemon_get(pg, GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers));
1656 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "%d gets succeeded, %d gets failed!\n", gets_completed, gets_failed);
1658 update_meter(get_meter);
1659 if ((gets_completed + gets_failed == num_gets) && (outstanding_gets == 0))
1661 fprintf(stderr, "Canceling die task (get_stop_finished) %llu gets completed, %llu gets failed\n", gets_completed, gets_failed);
1662 GNUNET_SCHEDULER_cancel(die_task);
1663 reset_meter(put_meter);
1664 reset_meter(get_meter);
1667 * 1) Testing is completely finished, call the topology iteration dealy and die
1668 * 2) Testing is not finished, churn the network and do gets again (current_churn_round < churn_rounds)
1669 * 3) Testing is not finished, reschedule all the PUTS *and* GETS again (num_rounds > 1)
1671 if (rounds_finished == total_rounds - 1) /* Everything is finished, end testing */
1673 if (dhtlog_handle != NULL)
1675 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
1676 topo_ctx->cont = &log_dht_statistics;
1677 topo_ctx->peers_seen = GNUNET_CONTAINER_multihashmap_create(num_peers);
1678 GNUNET_SCHEDULER_add_now(&capture_current_topology, topo_ctx);
1681 GNUNET_SCHEDULER_add_now (&finish_testing, NULL);
1683 else if (current_churn_round < churns_per_round * (rounds_finished + 1)) /* Do next round of churn */
1685 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);
1689 if (dhtlog_handle != NULL)
1690 dhtlog_handle->insert_round(DHT_ROUND_CHURN, rounds_finished);
1692 GNUNET_SCHEDULER_add_now(&churn_peers, NULL);
1694 else if (rounds_finished < total_rounds - 1) /* Start a new complete round */
1699 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Round %u of %llu finished, scheduling next round.\n", rounds_finished, total_rounds);
1701 /** We reset the peer daemon for puts and gets on each disconnect, so all we need to do is start another round! */
1702 if (GNUNET_YES == in_dht_replication) /* Replication done in DHT, don't redo puts! */
1704 if (dhtlog_handle != NULL)
1705 dhtlog_handle->insert_round(DHT_ROUND_GET, rounds_finished);
1707 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),
1708 &end_badly, "from do gets (next round)");
1709 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, round_delay), &do_get, all_gets);
1713 if (dhtlog_handle != NULL)
1714 dhtlog_handle->insert_round(DHT_ROUND_NORMAL, rounds_finished);
1715 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)),
1716 &end_badly, "from do puts");
1717 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, round_delay), &do_put, all_puts);
1724 * Task to release get handle.
1727 get_stop_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1729 struct TestGetContext *test_get = cls;
1731 if (tc->reason == GNUNET_SCHEDULER_REASON_TIMEOUT)
1733 GNUNET_assert(test_get->get_handle != NULL);
1734 GNUNET_DHT_get_stop(test_get->get_handle);
1735 test_get->get_handle = NULL;
1736 test_get->disconnect_task = GNUNET_SCHEDULER_NO_TASK;
1737 GNUNET_SCHEDULER_add_now (&get_stop_finished, test_get);
1741 * Iterator called if the GET request initiated returns a response.
1743 * @param cls closure
1744 * @param exp when will this value expire
1745 * @param key key of the result
1746 * @param get_path NULL-terminated array of pointers
1747 * to the peers on reverse GET path (or NULL if not recorded)
1748 * @param put_path NULL-terminated array of pointers
1749 * to the peers on the PUT path (or NULL if not recorded)
1750 * @param type type of the result
1751 * @param size number of bytes in data
1752 * @param data pointer to the result data
1755 get_result_iterator (void *cls,
1756 struct GNUNET_TIME_Absolute exp,
1757 const GNUNET_HashCode * key,
1758 const struct GNUNET_PeerIdentity * const *get_path,
1759 const struct GNUNET_PeerIdentity * const *put_path,
1760 enum GNUNET_BLOCK_Type type,
1764 struct TestGetContext *test_get = cls;
1766 if (test_get->succeeded == GNUNET_YES)
1767 return; /* Get has already been successful, probably ending now */
1769 if (0 != memcmp(&known_keys[test_get->uid], key, sizeof (GNUNET_HashCode))) /* || (0 != memcmp(original_data, data, sizeof(original_data))))*/
1772 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Key or data is not the same as was inserted!\n");
1777 test_get->succeeded = GNUNET_YES;
1780 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Received correct GET response!\n");
1782 GNUNET_SCHEDULER_cancel(test_get->disconnect_task);
1783 GNUNET_SCHEDULER_add_continuation(&get_stop_task, test_get, GNUNET_SCHEDULER_REASON_PREREQ_DONE);
1789 * Set up some data, and call API PUT function
1792 do_get (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1794 struct TestGetContext *test_get = cls;
1798 GNUNET_SCHEDULER_cancel(die_task);
1799 GNUNET_SCHEDULER_add_now(&finish_testing, NULL);
1802 if (test_get == NULL)
1803 return; /* End of the list */
1805 /* Set this here in case we are re-running gets */
1806 test_get->succeeded = GNUNET_NO;
1808 if (GNUNET_YES != GNUNET_TESTING_daemon_running(test_get->daemon)) /* If the peer has been churned off, don't try issuing request from it! */
1810 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Peer we should issue get request from is down, skipping.\n");
1812 GNUNET_SCHEDULER_add_now (&get_stop_finished, test_get);
1813 GNUNET_SCHEDULER_add_now (&do_get, test_get->next);
1817 /* Check if more gets are outstanding than should be */
1818 if (outstanding_gets > max_outstanding_gets)
1820 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MILLISECONDS, 200), &do_get, test_get);
1824 /* Connect to the first peer's DHT */
1825 test_get->dht_handle = GNUNET_DHT_connect(test_get->daemon->cfg, 10);
1826 GNUNET_assert(test_get->dht_handle != NULL);
1829 /* Insert the data at the first peer */
1830 test_get->get_handle = GNUNET_DHT_get_start(test_get->dht_handle,
1832 GNUNET_BLOCK_TYPE_TEST,
1833 &known_keys[test_get->uid],
1838 &get_result_iterator,
1842 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Starting get for uid %u from peer %s\n",
1844 test_get->daemon->shortname);
1846 test_get->disconnect_task = GNUNET_SCHEDULER_add_delayed(get_timeout, &get_stop_task, test_get);
1848 /* Schedule the next request in the linked list of get requests */
1849 GNUNET_SCHEDULER_add_now (&do_get, test_get->next);
1853 * Called when the PUT request has been transmitted to the DHT service.
1854 * Schedule the GET request for some time in the future.
1857 put_finished (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1859 struct TestPutContext *test_put = cls;
1860 struct TopologyIteratorContext *topo_ctx;
1864 if (tc->reason == GNUNET_SCHEDULER_REASON_TIMEOUT)
1865 fprintf(stderr, "PUT Request failed!\n");
1867 /* Reset the daemon (which peer to insert at) for later put request iterations */
1868 if (replicate_same == GNUNET_NO)
1869 test_put->daemon = GNUNET_TESTING_daemon_get(pg, GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers));
1871 GNUNET_SCHEDULER_cancel(test_put->disconnect_task);
1872 test_put->disconnect_task = GNUNET_SCHEDULER_add_now(&put_disconnect_task, test_put);
1873 if (GNUNET_YES == update_meter(put_meter))
1875 GNUNET_assert(outstanding_puts == 0);
1876 GNUNET_SCHEDULER_cancel (die_task);
1877 if (dhtlog_handle != NULL)
1879 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
1880 topo_ctx->cont = &do_get;
1881 topo_ctx->cls = all_gets;
1882 topo_ctx->timeout = DEFAULT_GET_TIMEOUT;
1883 topo_ctx->peers_seen = GNUNET_CONTAINER_multihashmap_create(num_peers);
1884 die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_add(GNUNET_TIME_relative_add(DEFAULT_GET_TIMEOUT, all_get_timeout), DEFAULT_TOPOLOGY_CAPTURE_TIMEOUT),
1885 &end_badly, "from do gets (put finished)");
1886 GNUNET_SCHEDULER_add_now(&capture_current_topology, topo_ctx);
1890 fprintf(stderr, "Scheduling die task (put finished)\n");
1891 die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_add(DEFAULT_GET_TIMEOUT, all_get_timeout),
1892 &end_badly, "from do gets (put finished)");
1893 GNUNET_SCHEDULER_add_delayed(DEFAULT_GET_TIMEOUT, &do_get, all_gets);
1900 * Set up some data, and call API PUT function
1903 do_put (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1905 struct TestPutContext *test_put = cls;
1906 char data[test_data_size]; /* Made up data to store */
1910 if (test_put == NULL)
1911 return; /* End of list */
1913 if (GNUNET_YES != GNUNET_TESTING_daemon_running(test_put->daemon)) /* If the peer has been churned off, don't try issuing request from it! */
1915 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Peer we should issue put request at is down, skipping.\n");
1916 update_meter(put_meter);
1917 GNUNET_SCHEDULER_add_now (&do_put, test_put->next);
1921 for (i = 0; i < sizeof(data); i++)
1923 memset(&data[i], GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, UINT32_MAX), 1);
1926 if (outstanding_puts > max_outstanding_puts)
1928 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MILLISECONDS, 200), &do_put, test_put);
1933 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Starting put for uid %u from peer %s\n",
1935 test_put->daemon->shortname);
1937 test_put->dht_handle = GNUNET_DHT_connect(test_put->daemon->cfg, 10);
1939 GNUNET_assert(test_put->dht_handle != NULL);
1941 GNUNET_DHT_put(test_put->dht_handle,
1942 &known_keys[test_put->uid],
1945 GNUNET_BLOCK_TYPE_TEST,
1947 GNUNET_TIME_UNIT_FOREVER_ABS,
1949 &put_finished, test_put);
1950 test_put->disconnect_task = GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_get_forever(), &put_disconnect_task, test_put);
1951 rand = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, 2);
1952 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, rand), &do_put, test_put->next);
1956 schedule_find_peer_requests (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc);
1959 setup_malicious_peers (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc);
1962 * Given a number of total peers and a bucket size, estimate the number of
1963 * connections in a perfect kademlia topology.
1965 static unsigned int connection_estimate(unsigned int peer_count, unsigned int bucket_size)
1968 unsigned int filled;
1972 while (i >= bucket_size)
1977 filled++; /* Add one filled bucket to account for one "half full" and some miscellaneous */
1978 return filled * bucket_size * peer_count;
1984 * Callback for iterating over all the peer connections of a peer group.
1987 count_peers_cb (void *cls,
1988 const struct GNUNET_PeerIdentity *first,
1989 const struct GNUNET_PeerIdentity *second,
1992 struct FindPeerContext *find_peer_context = cls;
1993 if ((first != NULL) && (second != NULL))
1995 add_new_connection(find_peer_context, first, second);
1996 find_peer_context->current_peers++;
2000 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Peer count finished (%u connections), %u new peers, connection estimate %u (target %u)\n",
2001 find_peer_context->current_peers,
2002 find_peer_context->current_peers - find_peer_context->previous_peers,
2003 connection_estimate(num_peers, DEFAULT_BUCKET_SIZE),
2004 target_total_connections);
2006 if ((find_peer_context->last_sent < 8) ||
2007 ((find_peer_context->current_peers - find_peer_context->previous_peers > FIND_PEER_THRESHOLD) &&
2008 (find_peer_context->current_peers < 2 * connection_estimate(num_peers, DEFAULT_BUCKET_SIZE)) &&
2009 (GNUNET_TIME_absolute_get_remaining(find_peer_context->endtime).rel_value > 0) &&
2010 (find_peer_context->current_peers < target_total_connections)))
2012 GNUNET_SCHEDULER_add_now(&schedule_find_peer_requests, find_peer_context);
2016 GNUNET_CONTAINER_multihashmap_iterate(find_peer_context->peer_hash, &remove_peer_count, find_peer_context);
2017 GNUNET_CONTAINER_multihashmap_destroy(find_peer_context->peer_hash);
2018 GNUNET_CONTAINER_heap_destroy(find_peer_context->peer_min_heap);
2019 GNUNET_free(find_peer_context);
2020 fprintf(stderr, "Not sending any more find peer requests.\n");
2023 if (GNUNET_YES == malicious_after_settle)
2025 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "calling setup_malicious_peers\n");
2026 GNUNET_SCHEDULER_add_now(&setup_malicious_peers, NULL);
2035 * Set up a single find peer request for each peer in the topology. Do this
2036 * until the settle time is over, limited by the number of outstanding requests
2037 * and the time allowed for each one!
2040 schedule_find_peer_requests (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
2042 struct FindPeerContext *find_peer_ctx = cls;
2043 struct TestFindPeer *test_find_peer;
2044 struct PeerCount *peer_count;
2048 if (find_peer_ctx->previous_peers == 0) /* First time, go slowly */
2049 find_peer_ctx->total = 1;
2050 else if (find_peer_ctx->current_peers - find_peer_ctx->previous_peers > MAX_FIND_PEER_CUTOFF) /* Found LOTS of peers, still go slowly */
2051 find_peer_ctx->total = find_peer_ctx->last_sent - (find_peer_ctx->last_sent / 8);
2053 find_peer_ctx->total = find_peer_ctx->last_sent * 2;
2055 if (find_peer_ctx->total > max_outstanding_find_peers)
2056 find_peer_ctx->total = max_outstanding_find_peers;
2058 if (find_peer_ctx->total > num_peers) /* Don't try to send more messages than we have peers! */
2059 find_peer_ctx->total = num_peers;
2061 find_peer_ctx->last_sent = find_peer_ctx->total;
2062 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Sending %u find peer messages (goal at least %u connections)\n", find_peer_ctx->total, target_total_connections);
2064 find_peer_offset = GNUNET_TIME_relative_divide(find_peer_delay, find_peer_ctx->total);
2065 for (i = 0; i < find_peer_ctx->total; i++)
2067 test_find_peer = GNUNET_malloc(sizeof(struct TestFindPeer));
2068 if (find_peer_ctx->previous_peers == 0) /* If we haven't sent any requests yet, choose random peers */
2071 * Attempt to spread find peer requests across even sections of the peer address
2072 * space. Choose basically 1 peer in every num_peers / max_outstanding_requests
2073 * each time, then offset it by a randomish value.
2075 * For instance, if num_peers is 100 and max_outstanding is 10, first chosen peer
2076 * will be between 0 - 10, second between 10 - 20, etc.
2078 random = (num_peers / find_peer_ctx->total) * i;
2079 random = random + GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, (num_peers / find_peer_ctx->total));
2080 if (random >= num_peers)
2082 random = random - num_peers;
2085 random = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers);
2087 test_find_peer->daemon = GNUNET_TESTING_daemon_get(pg, random);
2089 else /* If we have sent requests, choose peers with a low number of connections to send requests from */
2091 peer_count = GNUNET_CONTAINER_heap_remove_root(find_peer_ctx->peer_min_heap);
2092 GNUNET_assert(GNUNET_YES == GNUNET_CONTAINER_multihashmap_remove(find_peer_ctx->peer_hash, &peer_count->peer_id.hashPubKey, peer_count));
2093 test_find_peer->daemon = GNUNET_TESTING_daemon_get_by_id(pg, &peer_count->peer_id);
2094 GNUNET_assert(test_find_peer->daemon != NULL);
2097 test_find_peer->find_peer_context = find_peer_ctx;
2098 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_multiply(find_peer_offset, i), &send_find_peer_request, test_find_peer);
2101 if ((find_peer_ctx->peer_hash == NULL) && (find_peer_ctx->peer_min_heap == NULL))
2103 find_peer_ctx->peer_hash = GNUNET_CONTAINER_multihashmap_create(num_peers);
2104 find_peer_ctx->peer_min_heap = GNUNET_CONTAINER_heap_create(GNUNET_CONTAINER_HEAP_ORDER_MIN);
2108 GNUNET_CONTAINER_multihashmap_iterate(find_peer_ctx->peer_hash, &remove_peer_count, find_peer_ctx);
2109 GNUNET_CONTAINER_multihashmap_destroy(find_peer_ctx->peer_hash);
2110 find_peer_ctx->peer_hash = GNUNET_CONTAINER_multihashmap_create(num_peers);
2113 GNUNET_assert(0 == GNUNET_CONTAINER_multihashmap_size(find_peer_ctx->peer_hash));
2114 GNUNET_assert(0 == GNUNET_CONTAINER_heap_get_size(find_peer_ctx->peer_min_heap));
2119 * Set up all of the put and get operations we want to do
2120 * in the current round. Allocate data structure for each,
2121 * add to list, then schedule the actual PUT operations.
2124 setup_puts_and_gets (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
2127 struct TestPutContext *test_put;
2128 struct TestGetContext *test_get;
2130 int remember[num_puts][num_peers];
2131 memset(&remember, 0, sizeof(int) * num_puts * num_peers);
2133 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "in setup_puts_and_gets\n");
2134 known_keys = GNUNET_malloc(sizeof(GNUNET_HashCode) * num_puts);
2135 for (i = 0; i < num_puts; i++)
2137 test_put = GNUNET_malloc(sizeof(struct TestPutContext));
2139 GNUNET_CRYPTO_hash_create_random (GNUNET_CRYPTO_QUALITY_WEAK, &known_keys[i]);
2140 /* Set first X bits to match the chosen sybil location if we want to do the sybil attack! */
2141 if (GNUNET_YES == malicious_sybil)
2143 memcpy(&known_keys[i], &sybil_target, sizeof(GNUNET_HashCode) / 2);
2144 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));
2146 test_put->daemon = GNUNET_TESTING_daemon_get(pg, GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers));
2147 /* Don't start PUTs at malicious peers! */
2148 if (malicious_bloom != NULL)
2150 while (GNUNET_YES == GNUNET_CONTAINER_bloomfilter_test(malicious_bloom, &test_put->daemon->id.hashPubKey))
2151 test_put->daemon = GNUNET_TESTING_daemon_get(pg, GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers));
2154 test_put->next = all_puts;
2155 all_puts = test_put;
2158 for (i = 0; i < num_gets; i++)
2160 test_get = GNUNET_malloc(sizeof(struct TestGetContext));
2161 test_get->uid = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_puts);
2163 while (remember[test_get->uid][temp_daemon] == 1)
2164 temp_daemon = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers);
2165 remember[test_get->uid][temp_daemon] = 1;
2167 test_get->daemon = GNUNET_TESTING_daemon_get(pg, GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers));
2168 /* Don't start GETs at malicious peers! */
2169 if (malicious_bloom != NULL)
2171 while (GNUNET_YES == GNUNET_CONTAINER_bloomfilter_test(malicious_bloom, &test_get->daemon->id.hashPubKey))
2172 test_get->daemon = GNUNET_TESTING_daemon_get(pg, GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers));
2174 test_get->next = all_gets;
2175 all_gets = test_get;
2178 /*GNUNET_SCHEDULER_cancel (die_task);*/
2179 die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, num_puts * 2),
2180 &end_badly, "from do puts");
2181 GNUNET_SCHEDULER_add_now (&do_put, all_puts);
2186 * Set up some all of the put and get operations we want
2187 * to do. Allocate data structure for each, add to list,
2188 * then call actual insert functions.
2191 continue_puts_and_gets (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
2195 struct TopologyIteratorContext *topo_ctx;
2196 struct FindPeerContext *find_peer_context;
2197 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "In continue_puts_and_gets, dhtlog_handle %s\n", dhtlog_handle);
2198 if (dhtlog_handle != NULL)
2200 if (settle_time >= 180 * 2)
2201 max = (settle_time / 180) - 2;
2204 for (i = 1; i < max; i++)
2206 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
2207 topo_ctx->current_iteration = i;
2208 topo_ctx->total_iterations = max;
2209 topo_ctx->peers_seen = GNUNET_CONTAINER_multihashmap_create(num_peers);
2210 //fprintf(stderr, "scheduled topology iteration in %d minutes\n", i);
2211 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MINUTES, i * 3), &capture_current_topology, topo_ctx);
2213 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
2214 topo_ctx->cont = &setup_puts_and_gets;
2215 topo_ctx->peers_seen = GNUNET_CONTAINER_multihashmap_create(num_peers);
2216 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "setting setup_puts_and_gets for %d seconds in the future\n", settle_time + 90);
2217 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, (settle_time + 90)), &capture_current_topology, topo_ctx);
2220 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, (settle_time + 90)), &setup_puts_and_gets, NULL);
2222 if (dhtlog_handle != NULL)
2223 dhtlog_handle->insert_round(DHT_ROUND_NORMAL, rounds_finished);
2226 if (GNUNET_YES != malicious_after_settle)
2228 GNUNET_SCHEDULER_add_now(&setup_malicious_peers, NULL);
2232 if (GNUNET_YES == do_find_peer)
2234 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Scheduling find peer requests during \"settle\" time.\n");
2235 find_peer_context = GNUNET_malloc(sizeof(struct FindPeerContext));
2236 find_peer_context->count_peers_cb = &count_peers_cb;
2237 find_peer_context->endtime = GNUNET_TIME_relative_to_absolute(GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, settle_time));
2238 GNUNET_SCHEDULER_add_now(&schedule_find_peer_requests, find_peer_context);
2242 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Assuming automatic DHT find peer requests.\n");
2247 * Task to release DHT handles
2250 malicious_disconnect_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
2252 struct MaliciousContext *ctx = cls;
2253 outstanding_malicious--;
2254 malicious_completed++;
2255 ctx->disconnect_task = GNUNET_SCHEDULER_NO_TASK;
2256 GNUNET_DHT_disconnect(ctx->dht_handle);
2257 ctx->dht_handle = NULL;
2260 if (malicious_completed == malicious_getters + malicious_putters + malicious_droppers)
2262 fprintf(stderr, "Finished setting all malicious peers up!\n");
2268 * Task to release DHT handles
2271 malicious_done_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
2273 struct MaliciousContext *ctx = cls;
2274 GNUNET_SCHEDULER_cancel(ctx->disconnect_task);
2275 GNUNET_SCHEDULER_add_now(&malicious_disconnect_task, ctx);
2279 * Set up some data, and call API PUT function
2282 set_malicious (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
2284 struct MaliciousContext *ctx = cls;
2286 if (outstanding_malicious > DEFAULT_MAX_OUTSTANDING_GETS)
2288 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MILLISECONDS, 100), &set_malicious, ctx);
2292 if (ctx->dht_handle == NULL)
2294 ctx->dht_handle = GNUNET_DHT_connect(ctx->daemon->cfg, 1);
2295 outstanding_malicious++;
2298 GNUNET_assert(ctx->dht_handle != NULL);
2302 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Setting peer %s malicious type %d\n",
2303 ctx->daemon->shortname, ctx->malicious_type);
2306 switch (ctx->malicious_type)
2308 case GNUNET_MESSAGE_TYPE_DHT_MALICIOUS_GET:
2309 GNUNET_DHT_set_malicious_getter(ctx->dht_handle, malicious_get_frequency);
2310 GNUNET_SCHEDULER_add_now (&malicious_done_task, ctx);
2312 case GNUNET_MESSAGE_TYPE_DHT_MALICIOUS_PUT:
2313 GNUNET_DHT_set_malicious_putter(ctx->dht_handle, malicious_put_frequency);
2314 GNUNET_SCHEDULER_add_now (&malicious_done_task, ctx);
2316 case GNUNET_MESSAGE_TYPE_DHT_MALICIOUS_DROP:
2317 GNUNET_DHT_set_malicious_dropper(ctx->dht_handle);
2318 GNUNET_SCHEDULER_add_now (&malicious_done_task, ctx);
2324 ctx->disconnect_task = GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_UNIT_FOREVER_REL,
2325 &malicious_disconnect_task, ctx);
2330 * Choose the next peer from the peer group to set as malicious.
2331 * If we are doing a sybil attack, find the nearest peer to the
2332 * sybil location that has not already been set malicious. Otherwise
2333 * just choose a random not already chosen peer.
2335 * @param pg the peer group
2336 * @param bloom the bloomfilter which contains all peer already
2337 * chosen to be malicious
2340 choose_next_malicious (struct GNUNET_TESTING_PeerGroup *pg, struct GNUNET_CONTAINER_BloomFilter *bloom)
2346 struct GNUNET_TESTING_Daemon *temp_daemon;
2349 GNUNET_assert (bloom != NULL);
2351 if (GNUNET_YES == malicious_sybil)
2353 for (i = 0; i < num_peers; i++)
2355 temp_daemon = GNUNET_TESTING_daemon_get(pg, i);
2356 /* Check if this peer matches the bloomfilter */
2357 if ((GNUNET_NO == GNUNET_TESTING_daemon_running(temp_daemon)) || (GNUNET_YES == GNUNET_CONTAINER_bloomfilter_test (bloom, &temp_daemon->id.hashPubKey)))
2360 bits_match = GNUNET_CRYPTO_hash_matching_bits (&temp_daemon->id.hashPubKey, &sybil_target);
2361 if (bits_match >= curr_distance)
2363 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);
2365 curr_distance = bits_match;
2371 nearest = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers);
2372 while (GNUNET_YES == GNUNET_CONTAINER_bloomfilter_test (bloom, &temp_daemon->id.hashPubKey))
2374 nearest = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers);
2382 * Select randomly from set of known peers,
2383 * set the desired number of peers to the
2384 * proper malicious types.
2387 setup_malicious_peers (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
2389 struct MaliciousContext *ctx;
2391 uint32_t temp_daemon;
2393 for (i = 0; i < malicious_getters; i++)
2395 ctx = GNUNET_malloc(sizeof(struct MaliciousContext));
2396 temp_daemon = choose_next_malicious(pg, malicious_bloom);
2397 ctx->daemon = GNUNET_TESTING_daemon_get(pg, temp_daemon);
2398 GNUNET_CONTAINER_bloomfilter_add(malicious_bloom, &ctx->daemon->id.hashPubKey);
2399 ctx->malicious_type = GNUNET_MESSAGE_TYPE_DHT_MALICIOUS_GET;
2400 GNUNET_SCHEDULER_add_now (&set_malicious, ctx);
2404 for (i = 0; i < malicious_putters; i++)
2406 ctx = GNUNET_malloc(sizeof(struct MaliciousContext));
2407 temp_daemon = choose_next_malicious(pg, malicious_bloom);
2408 ctx->daemon = GNUNET_TESTING_daemon_get(pg, temp_daemon);
2409 GNUNET_CONTAINER_bloomfilter_add(malicious_bloom, &ctx->daemon->id.hashPubKey);
2410 ctx->malicious_type = GNUNET_MESSAGE_TYPE_DHT_MALICIOUS_PUT;
2411 GNUNET_SCHEDULER_add_now (&set_malicious, ctx);
2415 for (i = 0; i < malicious_droppers; i++)
2417 ctx = GNUNET_malloc(sizeof(struct MaliciousContext));
2418 temp_daemon = choose_next_malicious(pg, malicious_bloom);
2419 ctx->daemon = GNUNET_TESTING_daemon_get(pg, temp_daemon);
2420 GNUNET_CONTAINER_bloomfilter_add(malicious_bloom, &ctx->daemon->id.hashPubKey);
2421 ctx->malicious_type = GNUNET_MESSAGE_TYPE_DHT_MALICIOUS_DROP;
2422 GNUNET_SCHEDULER_add_now (&set_malicious, ctx);
2428 * This function is called whenever a connection attempt is finished between two of
2429 * the started peers (started with GNUNET_TESTING_daemons_start). The total
2430 * number of times this function is called should equal the number returned
2431 * from the GNUNET_TESTING_connect_topology call.
2433 * The emsg variable is NULL on success (peers connected), and non-NULL on
2434 * failure (peers failed to connect).
2437 topology_callback (void *cls,
2438 const struct GNUNET_PeerIdentity *first,
2439 const struct GNUNET_PeerIdentity *second,
2441 const struct GNUNET_CONFIGURATION_Handle *first_cfg,
2442 const struct GNUNET_CONFIGURATION_Handle *second_cfg,
2443 struct GNUNET_TESTING_Daemon *first_daemon,
2444 struct GNUNET_TESTING_Daemon *second_daemon,
2447 struct TopologyIteratorContext *topo_ctx;
2450 total_connections++;
2452 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "connected peer %s to peer %s, distance %u\n",
2453 first_daemon->shortname,
2454 second_daemon->shortname,
2460 failed_connections++;
2461 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Failed to connect peer %s to peer %s with error :\n%s\n",
2462 first_daemon->shortname,
2463 second_daemon->shortname, emsg);
2465 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Failed to connect peer %s to peer %s with error :\n%s\n",
2466 first_daemon->shortname,
2467 second_daemon->shortname, emsg);
2471 GNUNET_assert(peer_connect_meter != NULL);
2472 if (GNUNET_YES == update_meter(peer_connect_meter))
2475 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2476 "Created %d total connections, which is our target number! Starting next phase of testing.\n",
2479 if (failed_connections > 0)
2480 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "While connecting, had %u failed connections.\n", failed_connections);
2481 if (dhtlog_handle != NULL)
2483 dhtlog_handle->update_connections (total_connections);
2484 dhtlog_handle->insert_topology(expected_connections);
2487 GNUNET_SCHEDULER_cancel (die_task);
2489 if ((dhtlog_handle != NULL) && (settle_time > 0))
2491 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
2492 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Setting continue gets and puts as topo_cont\n");
2493 topo_ctx->cont = &continue_puts_and_gets;
2494 topo_ctx->peers_seen = GNUNET_CONTAINER_multihashmap_create(num_peers);
2495 GNUNET_SCHEDULER_add_now(&capture_current_topology, topo_ctx);
2498 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);
2500 else if (total_connections + failed_connections == expected_connections)
2502 GNUNET_SCHEDULER_cancel (die_task);
2503 die_task = GNUNET_SCHEDULER_add_now (&end_badly, "from topology_callback (too many failed connections)");
2508 peers_started_callback (void *cls,
2509 const struct GNUNET_PeerIdentity *id,
2510 const struct GNUNET_CONFIGURATION_Handle *cfg,
2511 struct GNUNET_TESTING_Daemon *d, const char *emsg)
2515 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Failed to start daemon with error: `%s'\n",
2519 GNUNET_assert (id != NULL);
2522 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Started daemon %llu out of %llu\n",
2523 (num_peers - peers_left) + 1, num_peers);
2528 if (GNUNET_YES == update_meter(peer_start_meter))
2531 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2532 "All %d daemons started, now connecting peers!\n",
2535 GNUNET_SCHEDULER_cancel (die_task);
2537 expected_connections = UINT_MAX;
2538 if ((pg != NULL) && (peers_left == 0))
2540 expected_connections = GNUNET_TESTING_connect_topology (pg, connect_topology, connect_topology_option, connect_topology_option_modifier, NULL, NULL);
2542 peer_connect_meter = create_meter(expected_connections, "Peer connection ", GNUNET_YES);
2543 fprintf(stderr, "Have %d expected connections\n", expected_connections);
2546 if (expected_connections == GNUNET_SYSERR)
2548 die_task = GNUNET_SCHEDULER_add_now (&end_badly, "from connect topology (bad return)");
2551 die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, DEFAULT_CONNECT_TIMEOUT * expected_connections),
2552 &end_badly, "from connect topology (timeout)");
2561 peers_left = num_peers; /* Reset counter */
2562 if (GNUNET_TESTING_create_topology (pg, topology, blacklist_topology, blacklist_transports) != GNUNET_SYSERR)
2565 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2566 "Topology set up, now starting peers!\n");
2568 GNUNET_TESTING_daemons_continue_startup(pg);
2572 GNUNET_SCHEDULER_cancel (die_task);
2573 die_task = GNUNET_SCHEDULER_add_now (&end_badly, "from create topology (bad return)");
2575 GNUNET_free_non_null(blacklist_transports);
2576 GNUNET_SCHEDULER_cancel (die_task);
2577 die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(seconds_per_peer_start, num_peers),
2578 &end_badly, "from continue startup (timeout)");
2582 * Callback indicating that the hostkey was created for a peer.
2585 * @param id the peer identity
2586 * @param d the daemon handle (pretty useless at this point, remove?)
2587 * @param emsg non-null on failure
2590 hostkey_callback (void *cls,
2591 const struct GNUNET_PeerIdentity *id,
2592 struct GNUNET_TESTING_Daemon *d,
2597 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Hostkey callback received error: %s\n", emsg);
2601 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2602 "Hostkey (%d/%d) created for peer `%s'\n",
2603 num_peers - peers_left, num_peers, GNUNET_i2s(id));
2607 if (GNUNET_YES == update_meter(hostkey_meter))
2610 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2611 "All %d hostkeys created, now creating topology!\n",
2614 GNUNET_SCHEDULER_cancel (die_task);
2615 /* Set up task in case topology creation doesn't finish
2616 * within a reasonable amount of time */
2617 die_task = GNUNET_SCHEDULER_add_delayed (DEFAULT_TOPOLOGY_TIMEOUT,
2618 &end_badly, "from create_topology");
2619 GNUNET_SCHEDULER_add_now(&create_topology, NULL);
2628 const char *cfgfile, const struct GNUNET_CONFIGURATION_Handle *cfg)
2631 struct GNUNET_DHTLOG_TrialInfo trial_info;
2632 struct GNUNET_TESTING_Host *hosts;
2633 struct GNUNET_TESTING_Host *temphost;
2634 struct GNUNET_TESTING_Host *tempnext;
2636 char *connect_topology_str;
2637 char *blacklist_topology_str;
2638 char *connect_topology_option_str;
2639 char *connect_topology_option_modifier_string;
2641 char *topology_percentage_str;
2642 float topology_percentage;
2643 char *topology_probability_str;
2645 float topology_probability;
2646 unsigned long long temp_config_number;
2647 unsigned long long trial_to_run;
2650 int strict_kademlia;
2654 char *churn_filename;
2661 rounds_finished = 0;
2662 memset(&trial_info, 0, sizeof(struct GNUNET_DHTLOG_TrialInfo));
2663 /* Get path from configuration file */
2664 if (GNUNET_YES != GNUNET_CONFIGURATION_get_value_string(cfg, "paths", "servicehome", &test_directory))
2670 /* Get number of peers to start from configuration */
2671 if (GNUNET_SYSERR ==
2672 GNUNET_CONFIGURATION_get_value_number (cfg, "testing", "num_peers",
2675 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2676 "Number of peers must be specified in section %s option %s\n", "TESTING", "NUM_PEERS");
2678 GNUNET_assert(num_peers > 0 && num_peers < ULONG_MAX);
2681 * Get DHT specific testing options.
2683 if ((GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht_testing", "mysql_logging")) ||
2684 (GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht_testing", "mysql_logging_extended")))
2686 dhtlog_handle = GNUNET_DHTLOG_connect(cfg);
2687 if (dhtlog_handle == NULL)
2689 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2690 "Could not connect to mysql server for logging, will NOT log dht operations!");
2696 stop_closest = GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht", "stop_on_closest");
2697 if (stop_closest == GNUNET_SYSERR)
2698 stop_closest = GNUNET_NO;
2700 stop_found = GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht", "stop_found");
2701 if (stop_found == GNUNET_SYSERR)
2702 stop_found = GNUNET_NO;
2704 strict_kademlia = GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht", "strict_kademlia");
2705 if (strict_kademlia == GNUNET_SYSERR)
2706 strict_kademlia = GNUNET_NO;
2709 GNUNET_CONFIGURATION_get_value_string (cfg, "dht_testing", "comment",
2711 trialmessage = NULL;
2714 /** Check for a churn file to do churny simulation */
2716 GNUNET_CONFIGURATION_get_value_string(cfg, "dht_testing", "churn_file",
2719 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Reading churn data from %s\n", churn_filename);
2720 if (GNUNET_OK != GNUNET_DISK_file_test (churn_filename))
2722 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Error reading churn file!\n");
2723 GNUNET_free_non_null(trialmessage);
2724 GNUNET_free(churn_filename);
2727 if ((0 != STAT (churn_filename, &frstat)) || (frstat.st_size == 0))
2729 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
2730 "Could not open file specified for churn data, ending test!");
2732 GNUNET_free_non_null(trialmessage);
2733 GNUNET_free(churn_filename);
2737 churn_data = GNUNET_malloc_large (frstat.st_size);
2738 GNUNET_assert(churn_data != NULL);
2739 if (frstat.st_size !=
2740 GNUNET_DISK_fn_read (churn_filename, churn_data, frstat.st_size))
2742 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
2743 "Could not read file %s specified for churn, ending test!", churn_filename);
2744 GNUNET_free (churn_filename);
2745 GNUNET_free (churn_data);
2746 GNUNET_free_non_null(trialmessage);
2750 GNUNET_free_non_null(churn_filename);
2754 /* Read the first line */
2755 while (count < frstat.st_size)
2758 if (((churn_data[count] == '\n')) && (buf != &churn_data[count]))
2760 churn_data[count] = '\0';
2761 if (1 != sscanf(buf, "%u", &churn_rounds))
2763 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Failed to read number of rounds from churn file, ending test!\n");
2765 GNUNET_free_non_null(trialmessage);
2766 GNUNET_free_non_null(churn_data);
2769 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Read %u rounds from churn file\n", churn_rounds);
2770 buf = &churn_data[count + 1];
2771 churn_array = GNUNET_malloc(sizeof(unsigned int) * churn_rounds);
2772 break; /* Done with this part */
2776 if (GNUNET_OK != GNUNET_CONFIGURATION_get_value_number(cfg, "dht_testing", "churns_per_round", &churns_per_round))
2778 churns_per_round = (unsigned long long)churn_rounds;
2782 while ((count < frstat.st_size) && (line_number < churn_rounds))
2785 if (((churn_data[count] == '\n')) && (buf != &churn_data[count]))
2787 churn_data[count] = '\0';
2789 ret = sscanf(buf, "%u", &churn_array[line_number]);
2792 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Read %u peers in round %u\n", churn_array[line_number], line_number);
2797 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Error reading line `%s' in hostfile\n", buf);
2798 buf = &churn_data[count + 1];
2801 buf = &churn_data[count + 1];
2803 else if (churn_data[count] == '\n') /* Blank line */
2804 buf = &churn_data[count + 1];
2807 GNUNET_free_non_null(churn_data);
2809 /* Check for a hostfile containing user@host:port triples */
2811 GNUNET_CONFIGURATION_get_value_string (cfg, "testing", "hostfile",
2818 if (hostfile != NULL)
2820 if (GNUNET_OK != GNUNET_DISK_file_test (hostfile))
2821 GNUNET_DISK_fn_write (hostfile, NULL, 0, GNUNET_DISK_PERM_USER_READ
2822 | GNUNET_DISK_PERM_USER_WRITE);
2823 if ((0 != STAT (hostfile, &frstat)) || (frstat.st_size == 0))
2825 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
2826 "Could not open file specified for host list, ending test!");
2828 GNUNET_free_non_null(trialmessage);
2829 GNUNET_free(hostfile);
2833 data = GNUNET_malloc_large (frstat.st_size);
2834 GNUNET_assert(data != NULL);
2835 if (frstat.st_size !=
2836 GNUNET_DISK_fn_read (hostfile, data, frstat.st_size))
2838 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
2839 "Could not read file %s specified for host list, ending test!", hostfile);
2840 GNUNET_free (hostfile);
2842 GNUNET_free_non_null(trialmessage);
2846 GNUNET_free_non_null(hostfile);
2850 while (count < frstat.st_size - 1)
2853 /* if (((data[count] == '\n') || (data[count] == '\0')) && (buf != &data[count]))*/
2854 if (((data[count] == '\n')) && (buf != &data[count]))
2857 temphost = GNUNET_malloc(sizeof(struct GNUNET_TESTING_Host));
2858 ret = sscanf(buf, "%a[a-zA-Z0-9]@%a[a-zA-Z0-9.]:%hd", &temphost->username, &temphost->hostname, &temphost->port);
2861 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Successfully read host %s, port %d and user %s from file\n", temphost->hostname, temphost->port, temphost->username);
2865 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Error reading line `%s' in hostfile\n", buf);
2866 GNUNET_free(temphost);
2867 buf = &data[count + 1];
2870 /* temphost->hostname = buf; */
2871 temphost->next = hosts;
2873 buf = &data[count + 1];
2875 else if ((data[count] == '\n') || (data[count] == '\0'))
2876 buf = &data[count + 1];
2879 GNUNET_free_non_null(data);
2881 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "malicious_getters",
2882 &malicious_getters))
2883 malicious_getters = 0;
2886 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "malicious_putters",
2887 &malicious_putters))
2888 malicious_putters = 0;
2891 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "malicious_droppers",
2892 &malicious_droppers))
2893 malicious_droppers = 0;
2896 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "settle_time",
2900 if (GNUNET_SYSERR ==
2901 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "num_puts",
2903 num_puts = num_peers;
2905 if (GNUNET_SYSERR ==
2906 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "put_replication",
2908 put_replication = DEFAULT_PUT_REPLICATION;
2910 if (GNUNET_SYSERR ==
2911 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "num_gets",
2913 num_gets = num_peers;
2915 if (GNUNET_SYSERR ==
2916 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "get_replication",
2918 get_replication = DEFAULT_GET_REPLICATION;
2921 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "find_peer_delay",
2922 &temp_config_number))
2923 find_peer_delay = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_config_number);
2925 find_peer_delay = DEFAULT_FIND_PEER_DELAY;
2928 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "concurrent_find_peers",
2929 &temp_config_number))
2930 max_outstanding_find_peers = temp_config_number;
2932 max_outstanding_find_peers = DEFAULT_MAX_OUTSTANDING_FIND_PEERS;
2935 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "get_timeout",
2936 &temp_config_number))
2937 get_timeout = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_config_number);
2939 get_timeout = DEFAULT_GET_TIMEOUT;
2942 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "concurrent_puts",
2943 &temp_config_number))
2944 max_outstanding_puts = temp_config_number;
2946 max_outstanding_puts = DEFAULT_MAX_OUTSTANDING_PUTS;
2949 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "concurrent_gets",
2950 &temp_config_number))
2951 max_outstanding_gets = temp_config_number;
2953 max_outstanding_gets = DEFAULT_MAX_OUTSTANDING_GETS;
2956 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "timeout",
2957 &temp_config_number))
2958 all_get_timeout = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_config_number);
2960 all_get_timeout.rel_value = get_timeout.rel_value * num_gets;
2963 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "get_delay",
2964 &temp_config_number))
2965 get_delay = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_config_number);
2967 get_delay = DEFAULT_GET_DELAY;
2970 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "put_delay",
2971 &temp_config_number))
2972 put_delay = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_config_number);
2974 put_delay = DEFAULT_PUT_DELAY;
2977 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "peer_start_timeout",
2978 &temp_config_number))
2979 seconds_per_peer_start = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_config_number);
2981 seconds_per_peer_start = DEFAULT_SECONDS_PER_PEER_START;
2984 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "data_size",
2985 &temp_config_number))
2986 test_data_size = temp_config_number;
2988 test_data_size = DEFAULT_TEST_DATA_SIZE;
2991 * Get testing related options.
2993 if (GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno(cfg, "DHT_TESTING", "REPLICATE_SAME"))
2994 replicate_same = GNUNET_YES;
2997 * Get testing related options.
2999 if (GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno(cfg, "DHT_TESTING", "GET_FROM_SAME"))
3000 get_from_same = GNUNET_YES;
3003 if (GNUNET_NO == GNUNET_CONFIGURATION_get_value_time (cfg, "DHT_TESTING",
3004 "MALICIOUS_GET_FREQUENCY",
3005 &malicious_get_frequency))
3006 malicious_get_frequency = DEFAULT_MALICIOUS_GET_FREQUENCY;
3009 if (GNUNET_NO == GNUNET_CONFIGURATION_get_value_time (cfg, "DHT_TESTING",
3010 "MALICIOUS_PUT_FREQUENCY",
3011 &malicious_put_frequency))
3012 malicious_put_frequency = DEFAULT_MALICIOUS_PUT_FREQUENCY;
3014 if (GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno(cfg, "DHT_TESTING", "MALICIOUS_AFTER_SETTLE"))
3015 malicious_after_settle = GNUNET_YES;
3017 if (GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno(cfg, "DHT_TESTING", "MALICIOUS_SYBIL"))
3019 /* Set up the malicious target at random for this round */
3020 GNUNET_CRYPTO_hash_create_random (GNUNET_CRYPTO_QUALITY_WEAK, &sybil_target);
3021 malicious_sybil = GNUNET_YES;
3024 /* Create the bloomfilter for choosing which peers to set malicious */
3025 malicious_bloom = GNUNET_CONTAINER_bloomfilter_init (NULL, DHT_BLOOM_SIZE, DHT_BLOOM_K);
3027 /* The normal behavior of the DHT is to do find peer requests
3028 * on its own. Only if this is explicitly turned off should
3029 * the testing driver issue find peer requests (even though
3030 * this is likely the default when testing).
3033 GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht",
3036 do_find_peer = GNUNET_YES;
3040 GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht",
3043 in_dht_replication = GNUNET_YES;
3046 if (GNUNET_YES != GNUNET_CONFIGURATION_get_value_number (cfg, "DHT_TESTING",
3053 if (GNUNET_YES == GNUNET_CONFIGURATION_get_value_number (cfg, "DHT_TESTING",
3055 &temp_config_number))
3057 find_peer_delay = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_config_number);
3060 find_peer_delay = DEFAULT_FIND_PEER_DELAY;
3062 if (GNUNET_YES != GNUNET_CONFIGURATION_get_value_number(cfg, "DHT_TESTING", "ROUND_DELAY", &round_delay))
3065 if (GNUNET_NO == GNUNET_CONFIGURATION_get_value_number (cfg, "DHT_TESTING",
3066 "OUTSTANDING_FIND_PEERS",
3067 &max_outstanding_find_peers))
3068 max_outstanding_find_peers = DEFAULT_MAX_OUTSTANDING_FIND_PEERS;
3070 if (GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht", "strict_kademlia"))
3071 max_outstanding_find_peers = max_outstanding_find_peers * 1;
3073 find_peer_offset = GNUNET_TIME_relative_divide (find_peer_delay, max_outstanding_find_peers);
3075 if (GNUNET_SYSERR ==
3076 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "num_rounds",
3082 if ((GNUNET_SYSERR ==
3083 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "target_total_connections",
3084 &target_total_connections)) ||
3085 (target_total_connections == 0))
3087 target_total_connections = connection_estimate(num_peers, DEFAULT_BUCKET_SIZE);
3090 topology_str = NULL;
3092 GNUNET_CONFIGURATION_get_value_string(cfg, "testing", "topology",
3093 &topology_str)) && (GNUNET_NO == GNUNET_TESTING_topology_get(&topology, topology_str)))
3095 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
3096 "Invalid topology `%s' given for section %s option %s\n", topology_str, "TESTING", "TOPOLOGY");
3097 topology = GNUNET_TESTING_TOPOLOGY_CLIQUE; /* Defaults to NONE, so set better default here */
3101 GNUNET_CONFIGURATION_get_value_string (cfg, "testing", "percentage",
3102 &topology_percentage_str))
3103 topology_percentage = 0.5;
3106 topology_percentage = atof (topology_percentage_str);
3107 GNUNET_free(topology_percentage_str);
3111 GNUNET_CONFIGURATION_get_value_string (cfg, "testing", "probability",
3112 &topology_probability_str))
3113 topology_probability = 0.5;
3116 topology_probability = atof (topology_probability_str);
3117 GNUNET_free(topology_probability_str);
3121 GNUNET_CONFIGURATION_get_value_string(cfg, "testing", "connect_topology",
3122 &connect_topology_str)) && (GNUNET_NO == GNUNET_TESTING_topology_get(&connect_topology, connect_topology_str)))
3124 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
3125 "Invalid connect topology `%s' given for section %s option %s\n", connect_topology_str, "TESTING", "CONNECT_TOPOLOGY");
3127 GNUNET_free_non_null(connect_topology_str);
3130 GNUNET_CONFIGURATION_get_value_string(cfg, "testing", "connect_topology_option",
3131 &connect_topology_option_str)) && (GNUNET_NO == GNUNET_TESTING_topology_option_get(&connect_topology_option, connect_topology_option_str)))
3133 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
3134 "Invalid connect topology option `%s' given for section %s option %s\n", connect_topology_option_str, "TESTING", "CONNECT_TOPOLOGY_OPTION");
3135 connect_topology_option = GNUNET_TESTING_TOPOLOGY_OPTION_ALL; /* Defaults to NONE, set to ALL */
3137 GNUNET_free_non_null(connect_topology_option_str);
3140 GNUNET_CONFIGURATION_get_value_string (cfg, "testing", "connect_topology_option_modifier",
3141 &connect_topology_option_modifier_string))
3143 if (sscanf(connect_topology_option_modifier_string, "%lf", &connect_topology_option_modifier) != 1)
3145 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
3146 _("Invalid value `%s' for option `%s' in section `%s': expected float\n"),
3147 connect_topology_option_modifier_string,
3148 "connect_topology_option_modifier",
3151 GNUNET_free (connect_topology_option_modifier_string);
3154 if (GNUNET_YES != GNUNET_CONFIGURATION_get_value_string (cfg, "testing", "blacklist_transports",
3155 &blacklist_transports))
3156 blacklist_transports = NULL;
3159 GNUNET_CONFIGURATION_get_value_string(cfg, "testing", "blacklist_topology",
3160 &blacklist_topology_str)) &&
3161 (GNUNET_NO == GNUNET_TESTING_topology_get(&blacklist_topology, blacklist_topology_str)))
3163 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
3164 "Invalid topology `%s' given for section %s option %s\n", topology_str, "TESTING", "BLACKLIST_TOPOLOGY");
3166 GNUNET_free_non_null(topology_str);
3167 GNUNET_free_non_null(blacklist_topology_str);
3169 /* Set peers_left so we know when all peers started */
3170 peers_left = num_peers;
3173 /* Set up a task to end testing if peer start fails */
3174 die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(seconds_per_peer_start, num_peers),
3175 &end_badly, "didn't generate all hostkeys within allowed startup time!");
3177 if (dhtlog_handle == NULL)
3178 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
3179 "dhtlog_handle is NULL!");
3181 trial_info.other_identifier = (unsigned int)trial_to_run;
3182 trial_info.num_nodes = peers_left;
3183 trial_info.topology = topology;
3184 trial_info.blacklist_topology = blacklist_topology;
3185 trial_info.connect_topology = connect_topology;
3186 trial_info.connect_topology_option = connect_topology_option;
3187 trial_info.connect_topology_option_modifier = connect_topology_option_modifier;
3188 trial_info.topology_percentage = topology_percentage;
3189 trial_info.topology_probability = topology_probability;
3190 trial_info.puts = num_puts;
3191 trial_info.gets = num_gets;
3192 trial_info.concurrent = max_outstanding_gets;
3193 trial_info.settle_time = settle_time;
3194 trial_info.num_rounds = total_rounds;
3195 trial_info.malicious_getters = malicious_getters;
3196 trial_info.malicious_putters = malicious_putters;
3197 trial_info.malicious_droppers = malicious_droppers;
3198 trial_info.malicious_get_frequency = malicious_get_frequency.rel_value;
3199 trial_info.malicious_put_frequency = malicious_put_frequency.rel_value;
3200 trial_info.stop_closest = stop_closest;
3201 trial_info.stop_found = stop_found;
3202 trial_info.strict_kademlia = strict_kademlia;
3204 if (trialmessage != NULL)
3205 trial_info.message = trialmessage;
3207 trial_info.message = "";
3209 if (dhtlog_handle != NULL)
3210 dhtlog_handle->insert_trial(&trial_info);
3212 GNUNET_free_non_null(trialmessage);
3214 hostkey_meter = create_meter(peers_left, "Hostkeys created ", GNUNET_YES);
3215 peer_start_meter = create_meter(peers_left, "Peers started ", GNUNET_YES);
3217 put_meter = create_meter(num_puts, "Puts completed ", GNUNET_YES);
3218 get_meter = create_meter(num_gets, "Gets completed ", GNUNET_YES);
3219 pg = GNUNET_TESTING_daemons_start (cfg,
3221 GNUNET_TIME_relative_multiply(seconds_per_peer_start, num_peers),
3222 &hostkey_callback, NULL,
3223 &peers_started_callback, NULL,
3224 &topology_callback, NULL,
3227 while (temphost != NULL)
3229 tempnext = temphost->next;
3230 GNUNET_free (temphost->username);
3231 GNUNET_free (temphost->hostname);
3232 GNUNET_free (temphost);
3233 temphost = tempnext;
3238 main (int argc, char *argv[])
3241 struct GNUNET_GETOPT_CommandLineOption options[] = {
3242 GNUNET_GETOPT_OPTION_END
3245 ret = GNUNET_PROGRAM_run (argc,
3246 argv, "gnunet-dht-driver", "nohelp",
3247 options, &run, &ok);
3250 if (malicious_bloom != NULL)
3251 GNUNET_CONTAINER_bloomfilter_free (malicious_bloom);
3253 if (ret != GNUNET_OK)
3255 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "`gnunet-dht-driver': Failed with error code %d\n", ret);
3259 * Need to remove base directory, subdirectories taken care
3260 * of by the testing framework.
3262 if (GNUNET_DISK_directory_remove (test_directory) != GNUNET_OK)
3264 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Failed to remove testing directory %s\n", test_directory);
3269 /* end of gnunet-dht-driver.c */