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 * How often to send malicious GET messages.
463 static struct GNUNET_TIME_Relative malicious_get_frequency;
466 * How often to send malicious PUT messages.
468 static struct GNUNET_TIME_Relative malicious_put_frequency;
471 * How long to send find peer requests.
473 static unsigned long long settle_time;
476 * Handle to the dhtlog service.
478 static struct GNUNET_DHTLOG_Handle *dhtlog_handle;
481 * Replication value for GET requests.
483 static unsigned long long get_replication;
486 * Replication value for PUT requests.
488 static unsigned long long put_replication;
491 * If GNUNET_YES, insert data at the same peers every time.
492 * Otherwise, choose a new random peer to insert at each time.
494 static unsigned int replicate_same;
497 * If GNUNET_YES, issue GET requests at the same peers every time.
498 * Otherwise, choose a new random peer/data combination to search
501 static unsigned int get_from_same;
504 * Should malicious peers be set after allowing for settle time?
505 * Default is to set them malicious after initial connection setup.
507 static unsigned int malicious_after_settle;
510 * Number of rounds for testing (PUTS + GETS)
512 static unsigned long long total_rounds;
515 * Target number of connections (will stop sending find peer
516 * messages when this number is exceeded)
518 static unsigned long long target_total_connections;
521 * Number of rounds already run
523 static unsigned int rounds_finished;
526 * Number of rounds of churn to read from the file (first line, should be a single number).
528 static unsigned int churn_rounds;
531 * Current round we are in for churn, tells us how many peers to connect/disconnect.
533 static unsigned int current_churn_round;
536 * Number of times to churn per round
538 static unsigned long long churns_per_round;
541 * Array of churn values.
543 static unsigned int *churn_array;
546 * Hash map of stats contexts.
548 static struct GNUNET_CONTAINER_MultiHashMap *stats_map;
551 * LL of malicious settings.
553 struct MaliciousContext *all_malicious;
556 * List of GETS to perform
558 struct TestGetContext *all_gets;
561 * List of PUTS to perform
563 struct TestPutContext *all_puts;
566 * Directory to store temporary data in, defined in config file
568 static char *test_directory;
571 * Variable used to store the number of connections we should wait for.
573 static unsigned int expected_connections;
576 * Variable used to keep track of how many peers aren't yet started.
578 static unsigned long long peers_left;
581 * Handle to the set of all peers run for this test.
583 static struct GNUNET_TESTING_PeerGroup *pg;
587 * Global config handle.
589 static const struct GNUNET_CONFIGURATION_Handle *config;
592 * Total number of peers to run, set based on config file.
594 static unsigned long long num_peers;
597 * Total number of items to insert.
599 static unsigned long long num_puts;
602 * How many puts do we currently have in flight?
604 static unsigned long long outstanding_puts;
607 * How many puts are done?
609 static unsigned long long puts_completed;
612 * Total number of items to attempt to get.
614 static unsigned long long num_gets;
617 * How many puts do we currently have in flight?
619 static unsigned long long outstanding_gets;
622 * How many gets are done?
624 static unsigned long long gets_completed;
627 * How many gets failed?
629 static unsigned long long gets_failed;
632 * How many malicious control messages do
633 * we currently have in flight?
635 static unsigned long long outstanding_malicious;
638 * How many set malicious peers are done?
640 static unsigned long long malicious_completed;
643 * Global used to count how many connections we have currently
644 * been notified about (how many times has topology_callback been called
647 static unsigned int total_connections;
650 * Global used to count how many failed connections we have
651 * been notified about (how many times has topology_callback
652 * been called with failure?)
654 static unsigned int failed_connections;
656 /* Task handle to use to schedule shutdown if something goes wrong */
657 GNUNET_SCHEDULER_TaskIdentifier die_task;
659 static char *blacklist_transports;
661 static enum GNUNET_TESTING_Topology topology;
663 static enum GNUNET_TESTING_Topology blacklist_topology = GNUNET_TESTING_TOPOLOGY_NONE; /* Don't do any blacklisting */
665 static enum GNUNET_TESTING_Topology connect_topology = GNUNET_TESTING_TOPOLOGY_NONE; /* NONE actually means connect all allowed peers */
667 static enum GNUNET_TESTING_TopologyOption connect_topology_option = GNUNET_TESTING_TOPOLOGY_OPTION_ALL;
669 static double connect_topology_option_modifier = 0.0;
671 static struct ProgressMeter *hostkey_meter;
673 static struct ProgressMeter *peer_start_meter;
675 static struct ProgressMeter *peer_connect_meter;
677 static struct ProgressMeter *put_meter;
679 static struct ProgressMeter *get_meter;
681 static GNUNET_HashCode *known_keys;
683 /* Global return value (0 for success, anything else for failure) */
687 * Create a meter to keep track of the progress of some task.
689 * @param total the total number of items to complete
690 * @param start_string a string to prefix the meter with (if printing)
691 * @param print GNUNET_YES to print the meter, GNUNET_NO to count
694 * @return the progress meter
696 static struct ProgressMeter *
697 create_meter(unsigned int total, char * start_string, int print)
699 struct ProgressMeter *ret;
700 ret = GNUNET_malloc(sizeof(struct ProgressMeter));
703 ret->modnum = total / 4;
704 ret->dotnum = (total / 50) + 1;
705 if (start_string != NULL)
706 ret->startup_string = GNUNET_strdup(start_string);
708 ret->startup_string = GNUNET_strdup("");
714 * Update progress meter (increment by one).
716 * @param meter the meter to update and print info for
718 * @return GNUNET_YES if called the total requested,
719 * GNUNET_NO if more items expected
722 update_meter(struct ProgressMeter *meter)
724 if (meter->print == GNUNET_YES)
726 if (meter->completed % meter->modnum == 0)
728 if (meter->completed == 0)
730 fprintf(stdout, "%sProgress: [0%%", meter->startup_string);
733 fprintf(stdout, "%d%%", (int)(((float)meter->completed / meter->total) * 100));
735 else if (meter->completed % meter->dotnum == 0)
736 fprintf(stdout, ".");
738 if (meter->completed + 1 == meter->total)
739 fprintf(stdout, "%d%%]\n", 100);
744 if (meter->completed == meter->total)
750 * Reset progress meter.
752 * @param meter the meter to reset
754 * @return GNUNET_YES if meter reset,
755 * GNUNET_SYSERR on error
758 reset_meter(struct ProgressMeter *meter)
761 return GNUNET_SYSERR;
763 meter->completed = 0;
768 * Release resources for meter
770 * @param meter the meter to free
773 free_meter(struct ProgressMeter *meter)
775 GNUNET_free_non_null (meter->startup_string);
780 * Check whether peers successfully shut down.
783 shutdown_callback (void *cls,
794 * Task to release DHT handles for PUT
797 put_disconnect_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
799 struct TestPutContext *test_put = cls;
800 test_put->disconnect_task = GNUNET_SCHEDULER_NO_TASK;
801 GNUNET_DHT_disconnect(test_put->dht_handle);
802 test_put->dht_handle = NULL;
803 if (replicate_same == GNUNET_NO)
804 test_put->daemon = GNUNET_TESTING_daemon_get(pg, GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers));
808 * Function scheduled to be run on the successful completion of this
812 finish_testing (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
814 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Ending test normally!\n", (char *)cls);
815 GNUNET_assert (pg != NULL);
816 struct TestPutContext *test_put = all_puts;
817 struct TestGetContext *test_get = all_gets;
819 while (test_put != NULL)
821 if (test_put->disconnect_task != GNUNET_SCHEDULER_NO_TASK)
822 GNUNET_SCHEDULER_cancel(test_put->disconnect_task);
823 if (test_put->dht_handle != NULL)
824 GNUNET_DHT_disconnect(test_put->dht_handle);
825 test_put = test_put->next;
828 while (test_get != NULL)
830 if (test_get->disconnect_task != GNUNET_SCHEDULER_NO_TASK)
831 GNUNET_SCHEDULER_cancel(test_get->disconnect_task);
832 if (test_get->get_handle != NULL)
833 GNUNET_DHT_get_stop(test_get->get_handle);
834 if (test_get->dht_handle != NULL)
835 GNUNET_DHT_disconnect(test_get->dht_handle);
836 test_get = test_get->next;
839 GNUNET_TESTING_daemons_stop (pg, DEFAULT_TIMEOUT, &shutdown_callback, NULL);
841 if (dhtlog_handle != NULL)
843 fprintf(stderr, "Update trial endtime\n");
844 dhtlog_handle->update_trial (gets_completed);
845 GNUNET_DHTLOG_disconnect(dhtlog_handle);
846 dhtlog_handle = NULL;
849 if (hostkey_meter != NULL)
850 free_meter(hostkey_meter);
851 if (peer_start_meter != NULL)
852 free_meter(peer_start_meter);
853 if (peer_connect_meter != NULL)
854 free_meter(peer_connect_meter);
855 if (put_meter != NULL)
856 free_meter(put_meter);
857 if (get_meter != NULL)
858 free_meter(get_meter);
864 * Callback for iterating over all the peer connections of a peer group.
867 log_topology_cb (void *cls,
868 const struct GNUNET_PeerIdentity *first,
869 const struct GNUNET_PeerIdentity *second,
872 struct TopologyIteratorContext *topo_ctx = cls;
873 if ((first != NULL) && (second != NULL))
875 /* GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "According to CORE, peer %s is connected to %s\n", GNUNET_i2s(first), GNUNET_h2s(&second->hashPubKey));*/
876 if ((topo_ctx->peers_seen != NULL) && (GNUNET_NO == GNUNET_CONTAINER_multihashmap_contains(topo_ctx->peers_seen, &first->hashPubKey)))
878 GNUNET_CONTAINER_multihashmap_put(topo_ctx->peers_seen, &first->hashPubKey, NULL, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
879 topo_ctx->total_peers++;
881 topo_ctx->total_connections++;
882 if (GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno(config, "dht_testing", "mysql_logging"))
883 dhtlog_handle->insert_extended_topology(first, second);
887 GNUNET_assert(dhtlog_handle != NULL);
888 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);
889 dhtlog_handle->update_topology(topo_ctx->total_connections);
890 if (topo_ctx->cont != NULL)
891 GNUNET_SCHEDULER_add_now (topo_ctx->cont, topo_ctx->cls);
892 if (topo_ctx->peers_seen != NULL)
893 GNUNET_CONTAINER_multihashmap_destroy(topo_ctx->peers_seen);
894 GNUNET_free(topo_ctx);
899 * Iterator over hash map entries.
901 * @param cls closure - always NULL
902 * @param key current key code
903 * @param value value in the hash map, a stats context
904 * @return GNUNET_YES if we should continue to
908 static int stats_iterate (void *cls,
909 const GNUNET_HashCode * key,
912 struct StatisticsIteratorContext *stats_ctx;
916 dhtlog_handle->insert_stat(stats_ctx->peer, stats_ctx->stat_routes, stats_ctx->stat_route_forwards, stats_ctx->stat_results,
917 stats_ctx->stat_results_to_client, stats_ctx->stat_result_forwards, stats_ctx->stat_gets,
918 stats_ctx->stat_puts, stats_ctx->stat_puts_inserted, stats_ctx->stat_find_peer,
919 stats_ctx->stat_find_peer_start, stats_ctx->stat_get_start, stats_ctx->stat_put_start,
920 stats_ctx->stat_find_peer_reply, stats_ctx->stat_get_reply, stats_ctx->stat_find_peer_answer,
921 stats_ctx->stat_get_response_start);
922 GNUNET_free(stats_ctx);
927 stats_finished (void *cls, int result)
929 fprintf(stderr, "Finished getting all peers statistics, iterating!\n");
930 GNUNET_CONTAINER_multihashmap_iterate(stats_map, &stats_iterate, NULL);
931 GNUNET_CONTAINER_multihashmap_destroy(stats_map);
932 GNUNET_SCHEDULER_add_now (&finish_testing, NULL);
936 * Callback function to process statistic values.
939 * @param peer the peer the statistics belong to
940 * @param subsystem name of subsystem that created the statistic
941 * @param name the name of the datum
942 * @param value the current value
943 * @param is_persistent GNUNET_YES if the value is persistent, GNUNET_NO if not
944 * @return GNUNET_OK to continue, GNUNET_SYSERR to abort iteration
946 static int stats_handle (void *cls,
947 const struct GNUNET_PeerIdentity *peer,
948 const char *subsystem,
953 struct StatisticsIteratorContext *stats_ctx;
955 if (dhtlog_handle != NULL)
956 dhtlog_handle->add_generic_stat(peer, name, subsystem, value);
957 if (GNUNET_CONTAINER_multihashmap_contains(stats_map, &peer->hashPubKey))
959 stats_ctx = GNUNET_CONTAINER_multihashmap_get(stats_map, &peer->hashPubKey);
963 stats_ctx = GNUNET_malloc(sizeof(struct StatisticsIteratorContext));
964 stats_ctx->peer = peer;
965 GNUNET_CONTAINER_multihashmap_put(stats_map, &peer->hashPubKey, stats_ctx, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
967 GNUNET_assert(stats_ctx != NULL);
969 if (strcmp(name, STAT_ROUTES) == 0)
970 stats_ctx->stat_routes = value;
971 else if (strcmp(name, STAT_ROUTE_FORWARDS) == 0)
972 stats_ctx->stat_route_forwards = value;
973 else if (strcmp(name, STAT_RESULTS) == 0)
974 stats_ctx->stat_results = value;
975 else if (strcmp(name, STAT_RESULTS_TO_CLIENT) == 0)
976 stats_ctx->stat_results_to_client = value;
977 else if (strcmp(name, STAT_RESULT_FORWARDS) == 0)
978 stats_ctx->stat_result_forwards = value;
979 else if (strcmp(name, STAT_GETS) == 0)
980 stats_ctx->stat_gets = value;
981 else if (strcmp(name, STAT_PUTS) == 0)
982 stats_ctx->stat_puts = value;
983 else if (strcmp(name, STAT_PUTS_INSERTED) == 0)
984 stats_ctx->stat_puts_inserted = value;
985 else if (strcmp(name, STAT_FIND_PEER) == 0)
986 stats_ctx->stat_find_peer = value;
987 else if (strcmp(name, STAT_FIND_PEER_START) == 0)
988 stats_ctx->stat_find_peer_start = value;
989 else if (strcmp(name, STAT_GET_START) == 0)
990 stats_ctx->stat_get_start = value;
991 else if (strcmp(name, STAT_PUT_START) == 0)
992 stats_ctx->stat_put_start = value;
993 else if (strcmp(name, STAT_FIND_PEER_REPLY) == 0)
994 stats_ctx->stat_find_peer_reply = value;
995 else if (strcmp(name, STAT_GET_REPLY) == 0)
996 stats_ctx->stat_get_reply = value;
997 else if (strcmp(name, STAT_FIND_PEER_ANSWER) == 0)
998 stats_ctx->stat_find_peer_answer = value;
999 else if (strcmp(name, STAT_GET_RESPONSE_START) == 0)
1000 stats_ctx->stat_get_response_start = value;
1006 * Connect to statistics service for each peer and get the appropriate
1007 * dht statistics for safe keeping.
1010 log_dht_statistics (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1012 stats_map = GNUNET_CONTAINER_multihashmap_create(num_peers);
1013 fprintf(stderr, "Starting statistics logging\n");
1014 GNUNET_TESTING_get_statistics(pg, &stats_finished, &stats_handle, NULL);
1019 * Connect to all peers in the peer group and iterate over their
1023 capture_current_topology (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1025 struct TopologyIteratorContext *topo_ctx = cls;
1026 dhtlog_handle->insert_topology(0);
1027 GNUNET_TESTING_get_topology (pg, &log_topology_cb, topo_ctx);
1032 * Check if the get_handle is being used, if so stop the request. Either
1033 * way, schedule the end_badly_cont function which actually shuts down the
1037 end_badly (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1039 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Failing test with error: `%s'!\n", (char *)cls);
1041 struct TestPutContext *test_put = all_puts;
1042 struct TestGetContext *test_get = all_gets;
1044 while (test_put != NULL)
1046 if (test_put->disconnect_task != GNUNET_SCHEDULER_NO_TASK)
1047 GNUNET_SCHEDULER_cancel(test_put->disconnect_task);
1048 if (test_put->dht_handle != NULL)
1049 GNUNET_DHT_disconnect(test_put->dht_handle);
1050 test_put = test_put->next;
1053 while (test_get != NULL)
1055 if (test_get->disconnect_task != GNUNET_SCHEDULER_NO_TASK)
1056 GNUNET_SCHEDULER_cancel(test_get->disconnect_task);
1057 if (test_get->get_handle != NULL)
1058 GNUNET_DHT_get_stop(test_get->get_handle);
1059 if (test_get->dht_handle != NULL)
1060 GNUNET_DHT_disconnect(test_get->dht_handle);
1061 test_get = test_get->next;
1064 GNUNET_TESTING_daemons_stop (pg, DEFAULT_TIMEOUT, &shutdown_callback, NULL);
1066 if (dhtlog_handle != NULL)
1068 fprintf(stderr, "Update trial endtime\n");
1069 dhtlog_handle->update_trial (gets_completed);
1070 GNUNET_DHTLOG_disconnect(dhtlog_handle);
1071 dhtlog_handle = NULL;
1074 if (hostkey_meter != NULL)
1075 free_meter(hostkey_meter);
1076 if (peer_start_meter != NULL)
1077 free_meter(peer_start_meter);
1078 if (peer_connect_meter != NULL)
1079 free_meter(peer_connect_meter);
1080 if (put_meter != NULL)
1081 free_meter(put_meter);
1082 if (get_meter != NULL)
1083 free_meter(get_meter);
1089 * Forward declaration.
1092 do_put (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc);
1095 * Forward declaration.
1098 do_get (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc);
1101 * Iterator over hash map entries.
1103 * @param cls closure
1104 * @param key current key code
1105 * @param value value in the hash map
1106 * @return GNUNET_YES if we should continue to
1110 static int remove_peer_count (void *cls,
1111 const GNUNET_HashCode * key,
1114 struct FindPeerContext *find_peer_ctx = cls;
1115 struct PeerCount *peer_count = value;
1116 GNUNET_CONTAINER_heap_remove_node(find_peer_ctx->peer_min_heap, peer_count->heap_node);
1117 GNUNET_free(peer_count);
1123 * Connect to all peers in the peer group and iterate over their
1127 count_new_peers (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1129 struct FindPeerContext *find_peer_context = cls;
1130 find_peer_context->previous_peers = find_peer_context->current_peers;
1131 find_peer_context->current_peers = 0;
1132 GNUNET_TESTING_get_topology (pg, find_peer_context->count_peers_cb, find_peer_context);
1136 decrement_find_peers (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1138 struct TestFindPeer *test_find_peer = cls;
1139 GNUNET_assert(test_find_peer->find_peer_context->outstanding > 0);
1140 test_find_peer->find_peer_context->outstanding--;
1141 test_find_peer->find_peer_context->total--;
1142 if (0 == test_find_peer->find_peer_context->total)
1144 GNUNET_SCHEDULER_add_now(&count_new_peers, test_find_peer->find_peer_context);
1146 GNUNET_free(test_find_peer);
1150 * A find peer request has been sent to the server, now we will schedule a task
1151 * to wait the appropriate time to allow the request to go out and back.
1153 * @param cls closure - a TestFindPeer struct
1154 * @param tc context the task is being called with
1157 handle_find_peer_sent (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1159 struct TestFindPeer *test_find_peer = cls;
1161 GNUNET_DHT_disconnect(test_find_peer->dht_handle);
1162 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_divide(find_peer_delay, 2), &decrement_find_peers, test_find_peer);
1167 send_find_peer_request (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1169 struct TestFindPeer *test_find_peer = cls;
1171 if (test_find_peer->find_peer_context->outstanding > max_outstanding_find_peers)
1173 GNUNET_SCHEDULER_add_delayed(find_peer_offset, &send_find_peer_request, test_find_peer);
1177 test_find_peer->find_peer_context->outstanding++;
1178 if (GNUNET_TIME_absolute_get_remaining(test_find_peer->find_peer_context->endtime).rel_value == 0)
1180 GNUNET_SCHEDULER_add_now(&decrement_find_peers, test_find_peer);
1184 test_find_peer->dht_handle = GNUNET_DHT_connect(test_find_peer->daemon->cfg, 1);
1185 GNUNET_assert(test_find_peer->dht_handle != NULL);
1186 GNUNET_DHT_find_peers (test_find_peer->dht_handle,
1187 &handle_find_peer_sent, test_find_peer);
1192 * Add a connection to the find_peer_context given. This may
1193 * be complete overkill, but allows us to choose the peers with
1194 * the least connections to initiate find peer requests from.
1196 static void add_new_connection(struct FindPeerContext *find_peer_context,
1197 const struct GNUNET_PeerIdentity *first,
1198 const struct GNUNET_PeerIdentity *second)
1200 struct PeerCount *first_count;
1201 struct PeerCount *second_count;
1203 if (GNUNET_CONTAINER_multihashmap_contains(find_peer_context->peer_hash, &first->hashPubKey))
1205 first_count = GNUNET_CONTAINER_multihashmap_get(find_peer_context->peer_hash, &first->hashPubKey);
1206 GNUNET_assert(first_count != NULL);
1207 first_count->count++;
1208 GNUNET_CONTAINER_heap_update_cost(find_peer_context->peer_min_heap, first_count->heap_node, first_count->count);
1212 first_count = GNUNET_malloc(sizeof(struct PeerCount));
1213 first_count->count = 1;
1214 memcpy(&first_count->peer_id, first, sizeof(struct GNUNET_PeerIdentity));
1215 first_count->heap_node = GNUNET_CONTAINER_heap_insert(find_peer_context->peer_min_heap, first_count, first_count->count);
1216 GNUNET_CONTAINER_multihashmap_put(find_peer_context->peer_hash, &first->hashPubKey, first_count, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
1219 if (GNUNET_CONTAINER_multihashmap_contains(find_peer_context->peer_hash, &second->hashPubKey))
1221 second_count = GNUNET_CONTAINER_multihashmap_get(find_peer_context->peer_hash, &second->hashPubKey);
1222 GNUNET_assert(second_count != NULL);
1223 second_count->count++;
1224 GNUNET_CONTAINER_heap_update_cost(find_peer_context->peer_min_heap, second_count->heap_node, second_count->count);
1228 second_count = GNUNET_malloc(sizeof(struct PeerCount));
1229 second_count->count = 1;
1230 memcpy(&second_count->peer_id, second, sizeof(struct GNUNET_PeerIdentity));
1231 second_count->heap_node = GNUNET_CONTAINER_heap_insert(find_peer_context->peer_min_heap, second_count, second_count->count);
1232 GNUNET_CONTAINER_multihashmap_put(find_peer_context->peer_hash, &second->hashPubKey, second_count, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
1238 * Iterate over min heap of connections per peer. For any
1239 * peer that has 0 connections, attempt to connect them to
1242 * @param cls closure a struct FindPeerContext
1243 * @param node internal node of the heap
1244 * @param element value stored, a struct PeerCount
1245 * @param cost cost associated with the node
1246 * @return GNUNET_YES if we should continue to iterate,
1249 static int iterate_min_heap_peers (void *cls,
1250 struct GNUNET_CONTAINER_HeapNode *node,
1252 GNUNET_CONTAINER_HeapCostType cost)
1254 struct FindPeerContext *find_peer_context = cls;
1255 struct PeerCount *peer_count = element;
1256 struct GNUNET_TESTING_Daemon *d1;
1257 struct GNUNET_TESTING_Daemon *d2;
1258 struct GNUNET_TIME_Relative timeout;
1261 d1 = GNUNET_TESTING_daemon_get_by_id (pg, &peer_count->peer_id);
1262 GNUNET_assert(d1 != NULL);
1264 while ((d2 == d1) || (GNUNET_YES != GNUNET_TESTING_daemon_running(d2)))
1266 d2 = GNUNET_TESTING_daemon_get(pg, GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers));
1267 GNUNET_assert(d2 != NULL);
1270 /** Just try to connect the peers, don't worry about callbacks, etc. **/
1271 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);
1272 timeout = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, DEFAULT_CONNECT_TIMEOUT);
1273 if (GNUNET_TIME_relative_to_absolute(timeout).abs_value > find_peer_context->endtime.abs_value)
1275 timeout = GNUNET_TIME_absolute_get_remaining(find_peer_context->endtime);
1277 GNUNET_TESTING_daemons_connect(d1, d2, timeout, DEFAULT_RECONNECT_ATTEMPTS, NULL, NULL);
1279 if (GNUNET_TIME_absolute_get_remaining(find_peer_context->endtime).rel_value > 0)
1286 * Forward declaration.
1289 schedule_churn_find_peer_requests (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc);
1292 * Callback for iterating over all the peer connections of a peer group.
1293 * Used after we have churned on some peers to find which ones have zero
1294 * connections so we can make them issue find peer requests.
1297 count_peers_churn_cb (void *cls,
1298 const struct GNUNET_PeerIdentity *first,
1299 const struct GNUNET_PeerIdentity *second,
1302 struct FindPeerContext *find_peer_context = cls;
1303 struct TopologyIteratorContext *topo_ctx;
1304 struct PeerCount *peer_count;
1306 if ((first != NULL) && (second != NULL))
1308 add_new_connection(find_peer_context, first, second);
1309 find_peer_context->current_peers++;
1313 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Peer count finished (%u connections)\n",
1314 find_peer_context->current_peers);
1315 peer_count = GNUNET_CONTAINER_heap_peek(find_peer_context->peer_min_heap);
1316 GNUNET_assert(peer_count != NULL);
1317 /* 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. */
1318 /* NO they won't, because we have disabled peerinfo writing to disk (remember?) so we WILL have to give them new connections */
1319 /* Best course of action: have DHT automatically try to add peers from peerinfo on startup. This way IF peerinfo writes to file
1320 * then some peers will end up connected.
1322 * Also, find any peers that have zero connections here and set up a task to choose at random another peer in the network to
1323 * 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
1324 * until they get a peer.
1326 /* However, they won't automatically be connected to any of their previous peers... How can we handle that? */
1327 /* So now we have choices: do we want them to come back with all their connections? Probably not, but it solves this mess. */
1329 /* Second problem, which is still a problem, is that a FIND_PEER request won't work when a peer has no connections */
1332 * Okay, so here's how this *should* work now.
1334 * 1. We check the min heap for any peers that have 0 connections.
1335 * a. If any are found, we iterate over the heap and just randomly
1336 * choose another peer and ask testing to please connect the two.
1337 * This takes care of the case that a peer just randomly joins the
1338 * network. However, if there are strict topology restrictions
1339 * (imagine a ring) choosing randomly most likely won't help.
1340 * We make sure the connection attempt doesn't take longer than
1341 * the total timeout, but don't care too much about the result.
1342 * b. After that, we still schedule the find peer requests (concurrently
1343 * with the connect attempts most likely). This handles the case
1344 * that the DHT iterates over peerinfo and just needs to try to send
1345 * a message to get connected. This should handle the case that the
1346 * topology is very strict.
1348 * 2. If all peers have > 0 connections, we still send find peer requests
1349 * as long as possible (until timeout is reached) to help out those
1350 * peers that were newly churned and need more connections. This is because
1351 * once all new peers have established a single connection, they won't be
1354 * 3. Once we reach the timeout, we can do no more. We must schedule the
1355 * next iteration of get requests regardless of connections that peers
1356 * may or may not have.
1358 * Caveat: it would be nice to get peers to take data offline with them and
1359 * come back with it (or not) based on the testing framework. The
1360 * same goes for remembering previous connections, but putting either
1361 * into the general testing churn options seems like overkill because
1362 * these are very specialized cases.
1364 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);
1365 if ((peer_count->count == 0) && (GNUNET_TIME_absolute_get_remaining(find_peer_context->endtime).rel_value > 0))
1367 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Found peer with no connections, will choose some peer(s) at random to connect to!\n");
1368 GNUNET_CONTAINER_heap_iterate (find_peer_context->peer_min_heap, &iterate_min_heap_peers, find_peer_context);
1369 GNUNET_SCHEDULER_add_now(&schedule_churn_find_peer_requests, find_peer_context);
1371 else if ((GNUNET_TIME_absolute_get_remaining(find_peer_context->endtime).rel_value > 0) && (find_peer_context->last_sent != 0))
1373 GNUNET_SCHEDULER_add_now(&schedule_churn_find_peer_requests, find_peer_context);
1377 GNUNET_CONTAINER_multihashmap_iterate(find_peer_context->peer_hash, &remove_peer_count, find_peer_context);
1378 GNUNET_CONTAINER_multihashmap_destroy(find_peer_context->peer_hash);
1379 GNUNET_CONTAINER_heap_destroy(find_peer_context->peer_min_heap);
1380 GNUNET_free(find_peer_context);
1381 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Churn round %u of %llu finished, scheduling next GET round.\n", current_churn_round, churn_rounds);
1382 if (dhtlog_handle != NULL)
1384 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
1385 topo_ctx->cont = &do_get;
1386 topo_ctx->cls = all_gets;
1387 topo_ctx->timeout = DEFAULT_GET_TIMEOUT;
1388 topo_ctx->peers_seen = GNUNET_CONTAINER_multihashmap_create(num_peers);
1389 die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_add(GNUNET_TIME_relative_add(DEFAULT_GET_TIMEOUT, all_get_timeout), DEFAULT_TOPOLOGY_CAPTURE_TIMEOUT),
1390 &end_badly, "from do gets (count_peers_churn_cb)");
1391 GNUNET_SCHEDULER_add_now(&capture_current_topology, topo_ctx);
1395 die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_add(GNUNET_TIME_relative_add(DEFAULT_GET_TIMEOUT, all_get_timeout), DEFAULT_TOPOLOGY_CAPTURE_TIMEOUT),
1396 &end_badly, "from do gets (count_peers_churn_cb)");
1397 GNUNET_SCHEDULER_add_now(&do_get, all_gets);
1404 * Set up a single find peer request for each peer in the topology. Do this
1405 * until the settle time is over, limited by the number of outstanding requests
1406 * and the time allowed for each one!
1409 schedule_churn_find_peer_requests (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1411 struct FindPeerContext *find_peer_ctx = cls;
1412 struct TestFindPeer *test_find_peer;
1413 struct PeerCount *peer_count;
1416 if (find_peer_ctx->previous_peers == 0) /* First time, go slowly */
1417 find_peer_ctx->total = 1;
1418 else if (find_peer_ctx->current_peers - find_peer_ctx->previous_peers < MIN_FIND_PEER_CUTOFF)
1419 find_peer_ctx->total = find_peer_ctx->total / 2;
1420 else if (find_peer_ctx->current_peers - find_peer_ctx->previous_peers > MAX_FIND_PEER_CUTOFF) /* Found LOTS of peers, still go slowly */
1421 find_peer_ctx->total = find_peer_ctx->last_sent - (find_peer_ctx->last_sent / 4);
1423 find_peer_ctx->total = find_peer_ctx->last_sent * 4;
1425 if (find_peer_ctx->total > max_outstanding_find_peers)
1426 find_peer_ctx->total = max_outstanding_find_peers;
1428 find_peer_ctx->last_sent = find_peer_ctx->total;
1429 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Sending %u find peer messages (after churn)\n", find_peer_ctx->total);
1431 if (find_peer_ctx->total > 0)
1432 find_peer_offset = GNUNET_TIME_relative_divide(find_peer_delay, find_peer_ctx->total);
1435 find_peer_ctx->previous_peers = find_peer_ctx->current_peers;
1436 find_peer_ctx->current_peers = 0;
1437 GNUNET_TESTING_get_topology (pg, &count_peers_churn_cb, find_peer_ctx);
1441 for (i = 0; i < find_peer_ctx->total; i++)
1443 test_find_peer = GNUNET_malloc(sizeof(struct TestFindPeer));
1444 /* If we have sent requests, choose peers with a low number of connections to send requests from */
1445 peer_count = GNUNET_CONTAINER_heap_remove_root(find_peer_ctx->peer_min_heap);
1446 GNUNET_assert(peer_count != NULL);
1447 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Sending find peer request from peer with %u connections\n", peer_count->count);
1448 GNUNET_CONTAINER_multihashmap_remove(find_peer_ctx->peer_hash, &peer_count->peer_id.hashPubKey, peer_count);
1449 test_find_peer->daemon = GNUNET_TESTING_daemon_get_by_id(pg, &peer_count->peer_id);
1450 GNUNET_assert(test_find_peer->daemon != NULL);
1451 test_find_peer->find_peer_context = find_peer_ctx;
1452 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_multiply(find_peer_offset, i), &send_find_peer_request, test_find_peer);
1455 if ((find_peer_ctx->peer_hash == NULL) && (find_peer_ctx->peer_min_heap == NULL))
1457 find_peer_ctx->peer_hash = GNUNET_CONTAINER_multihashmap_create(num_peers);
1458 find_peer_ctx->peer_min_heap = GNUNET_CONTAINER_heap_create(GNUNET_CONTAINER_HEAP_ORDER_MIN);
1462 GNUNET_CONTAINER_multihashmap_iterate(find_peer_ctx->peer_hash, &remove_peer_count, find_peer_ctx);
1463 GNUNET_CONTAINER_multihashmap_destroy(find_peer_ctx->peer_hash);
1464 find_peer_ctx->peer_hash = GNUNET_CONTAINER_multihashmap_create(num_peers);
1467 GNUNET_assert(0 == GNUNET_CONTAINER_multihashmap_size(find_peer_ctx->peer_hash));
1468 GNUNET_assert(0 == GNUNET_CONTAINER_heap_get_size(find_peer_ctx->peer_min_heap));
1471 static void schedule_churn_get_topology (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1473 struct FindPeerContext *find_peer_context = cls;
1474 GNUNET_TESTING_get_topology (pg, &count_peers_churn_cb, find_peer_context);
1478 * Called when churning of the topology has finished.
1480 * @param cls closure unused
1481 * @param emsg NULL on success, or a printable error on failure
1483 static void churn_complete (void *cls, const char *emsg)
1485 struct FindPeerContext *find_peer_context = cls;
1486 struct PeerCount *peer_count;
1488 struct GNUNET_TESTING_Daemon *temp_daemon;
1489 struct TopologyIteratorContext *topo_ctx;
1490 struct GNUNET_TIME_Relative calc_timeout;
1495 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Ending test, churning of peers failed with error `%s'", emsg);
1496 GNUNET_SCHEDULER_add_now(&end_badly, (void *)emsg);
1501 * If we switched any peers on, we have to somehow force connect the new peer to
1502 * SOME bootstrap peer in the network. First schedule a task to find all peers
1503 * with no connections, then choose a random peer for each and connect them.
1505 if (find_peer_context != NULL)
1507 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "We have churned on some peers, so we must schedule find peer requests for them!\n");
1509 for (i = 0; i < num_peers; i ++)
1511 temp_daemon = GNUNET_TESTING_daemon_get(pg, i);
1512 if (GNUNET_YES == GNUNET_TESTING_daemon_running(temp_daemon))
1514 peer_count = GNUNET_malloc (sizeof(struct PeerCount));
1515 memcpy(&peer_count->peer_id, &temp_daemon->id, sizeof(struct GNUNET_PeerIdentity));
1516 GNUNET_assert(peer_count->count == 0);
1517 peer_count->heap_node = GNUNET_CONTAINER_heap_insert(find_peer_context->peer_min_heap, peer_count, peer_count->count);
1518 GNUNET_CONTAINER_multihashmap_put(find_peer_context->peer_hash, &temp_daemon->id.hashPubKey, peer_count, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
1522 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));
1523 GNUNET_SCHEDULER_add_delayed(DEFAULT_PEER_DISCONNECT_TIMEOUT, &schedule_churn_get_topology, find_peer_context);
1524 //GNUNET_TESTING_get_topology (pg, &count_peers_churn_cb, find_peer_context);
1528 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");
1529 if (dhtlog_handle != NULL)
1531 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
1532 topo_ctx->cont = &do_get;
1533 topo_ctx->cls = all_gets;
1534 topo_ctx->timeout = DEFAULT_GET_TIMEOUT;
1535 topo_ctx->peers_seen = GNUNET_CONTAINER_multihashmap_create(num_peers);
1536 calc_timeout = GNUNET_TIME_relative_add(DEFAULT_GET_TIMEOUT, all_get_timeout);
1537 calc_timeout = GNUNET_TIME_relative_add(calc_timeout, DEFAULT_TOPOLOGY_CAPTURE_TIMEOUT);
1538 calc_timeout = GNUNET_TIME_relative_add(calc_timeout, DEFAULT_PEER_DISCONNECT_TIMEOUT);
1539 die_task = GNUNET_SCHEDULER_add_delayed (calc_timeout,
1540 &end_badly, "from do gets (churn_complete)");
1541 GNUNET_SCHEDULER_add_delayed(DEFAULT_PEER_DISCONNECT_TIMEOUT, &capture_current_topology, topo_ctx);
1545 calc_timeout = GNUNET_TIME_relative_add(DEFAULT_GET_TIMEOUT, all_get_timeout);
1546 calc_timeout = GNUNET_TIME_relative_add(calc_timeout, DEFAULT_PEER_DISCONNECT_TIMEOUT);
1547 die_task = GNUNET_SCHEDULER_add_delayed (calc_timeout,
1548 &end_badly, "from do gets (churn_complete)");
1549 if (dhtlog_handle != NULL)
1550 dhtlog_handle->insert_round(DHT_ROUND_GET, rounds_finished);
1551 GNUNET_SCHEDULER_add_delayed(DEFAULT_PEER_DISCONNECT_TIMEOUT, &do_get, all_gets);
1557 * Decide how many peers to turn on or off in this round, make sure the
1558 * numbers actually make sense, then do so. This function sets in motion
1559 * churn, find peer requests for newly joined peers, and issuing get
1560 * requests once the new peers have done so.
1562 * @param cls closure (unused)
1563 * @param tc task context (unused)
1566 churn_peers (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1568 unsigned int count_running;
1569 unsigned int churn_up;
1570 unsigned int churn_down;
1571 struct GNUNET_TIME_Relative timeout;
1572 struct FindPeerContext *find_peer_context;
1574 churn_up = churn_down = 0;
1575 count_running = GNUNET_TESTING_daemons_running(pg);
1576 if (count_running > churn_array[current_churn_round])
1577 churn_down = count_running - churn_array[current_churn_round];
1578 else if (count_running < churn_array[current_churn_round])
1579 churn_up = churn_array[current_churn_round] - count_running;
1581 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Not churning any peers, topology unchanged.\n");
1583 if (churn_up > num_peers - count_running)
1585 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Churn file specified %u peers (up); only have %u!", churn_array[current_churn_round], num_peers);
1586 churn_up = num_peers - count_running;
1588 else if (churn_down > count_running)
1590 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Churn file specified %u peers (down); only have %u!", churn_array[current_churn_round], count_running);
1591 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "This will leave NO peers running (mistake in churn configuration?)!");
1592 churn_down = count_running;
1594 //timeout = GNUNET_TIME_relative_multiply(seconds_per_peer_start, churn_up > 0 ? churn_up : churn_down);
1595 //timeout = GNUNET_TIME_relative_multiply (seconds_per_peer_start, churn_up > 0 ? churn_up : churn_down);
1596 timeout = GNUNET_TIME_relative_multiply(DEFAULT_TIMEOUT, 2); /* FIXME: Lack of intelligent choice here */
1597 find_peer_context = NULL;
1598 if (churn_up > 0) /* Only need to do find peer requests if we turned new peers on */
1600 find_peer_context = GNUNET_malloc(sizeof(struct FindPeerContext));
1601 find_peer_context->count_peers_cb = &count_peers_churn_cb;
1602 find_peer_context->previous_peers = 0;
1603 find_peer_context->current_peers = 0;
1604 find_peer_context->endtime = GNUNET_TIME_relative_to_absolute(timeout);
1605 find_peer_context->peer_hash = GNUNET_CONTAINER_multihashmap_create(num_peers);
1606 find_peer_context->peer_min_heap = GNUNET_CONTAINER_heap_create(GNUNET_CONTAINER_HEAP_ORDER_MIN);
1608 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "churn_peers: want %u total, %u running, starting %u, stopping %u\n",
1609 churn_array[current_churn_round], count_running, churn_up, churn_down);
1610 GNUNET_TESTING_daemons_churn (pg, churn_down, churn_up, timeout, &churn_complete, find_peer_context);
1611 current_churn_round++;
1615 * Task to release DHT handle associated with GET request.
1618 get_stop_finished (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1620 struct TestGetContext *test_get = cls;
1621 struct TopologyIteratorContext *topo_ctx;
1623 /* The dht_handle may be null if this get was scheduled from a down peer */
1624 if (test_get->dht_handle != NULL)
1626 GNUNET_DHT_disconnect(test_get->dht_handle);
1627 outstanding_gets--; /* GET is really finished */
1628 test_get->dht_handle = NULL;
1631 /* Reset the uid (which item to search for) and the daemon (which peer to search from) for later get request iterations */
1632 if (get_from_same == GNUNET_NO)
1634 test_get->uid = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_puts);
1635 test_get->daemon = GNUNET_TESTING_daemon_get(pg, GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers));
1639 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "%d gets succeeded, %d gets failed!\n", gets_completed, gets_failed);
1641 update_meter(get_meter);
1642 if ((gets_completed + gets_failed == num_gets) && (outstanding_gets == 0))
1644 fprintf(stderr, "Canceling die task (get_stop_finished) %llu gets completed, %llu gets failed\n", gets_completed, gets_failed);
1645 GNUNET_SCHEDULER_cancel(die_task);
1646 reset_meter(put_meter);
1647 reset_meter(get_meter);
1650 * 1) Testing is completely finished, call the topology iteration dealy and die
1651 * 2) Testing is not finished, churn the network and do gets again (current_churn_round < churn_rounds)
1652 * 3) Testing is not finished, reschedule all the PUTS *and* GETS again (num_rounds > 1)
1654 if (rounds_finished == total_rounds - 1) /* Everything is finished, end testing */
1656 if (dhtlog_handle != NULL)
1658 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
1659 topo_ctx->cont = &log_dht_statistics;
1660 topo_ctx->peers_seen = GNUNET_CONTAINER_multihashmap_create(num_peers);
1661 GNUNET_SCHEDULER_add_now(&capture_current_topology, topo_ctx);
1664 GNUNET_SCHEDULER_add_now (&finish_testing, NULL);
1666 else if (current_churn_round < churns_per_round * (rounds_finished + 1)) /* Do next round of churn */
1668 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);
1672 if (dhtlog_handle != NULL)
1673 dhtlog_handle->insert_round(DHT_ROUND_CHURN, rounds_finished);
1675 GNUNET_SCHEDULER_add_now(&churn_peers, NULL);
1677 else if (rounds_finished < total_rounds - 1) /* Start a new complete round */
1682 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Round %u of %llu finished, scheduling next round.\n", rounds_finished, total_rounds);
1684 /** We reset the peer daemon for puts and gets on each disconnect, so all we need to do is start another round! */
1685 if (GNUNET_YES == in_dht_replication) /* Replication done in DHT, don't redo puts! */
1687 if (dhtlog_handle != NULL)
1688 dhtlog_handle->insert_round(DHT_ROUND_GET, rounds_finished);
1690 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),
1691 &end_badly, "from do gets (next round)");
1692 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, round_delay), &do_get, all_gets);
1696 if (dhtlog_handle != NULL)
1697 dhtlog_handle->insert_round(DHT_ROUND_NORMAL, rounds_finished);
1698 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)),
1699 &end_badly, "from do puts");
1700 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, round_delay), &do_put, all_puts);
1707 * Task to release get handle.
1710 get_stop_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1712 struct TestGetContext *test_get = cls;
1714 if (tc->reason == GNUNET_SCHEDULER_REASON_TIMEOUT)
1716 GNUNET_assert(test_get->get_handle != NULL);
1717 GNUNET_DHT_get_stop(test_get->get_handle);
1718 test_get->get_handle = NULL;
1719 test_get->disconnect_task = GNUNET_SCHEDULER_NO_TASK;
1720 GNUNET_SCHEDULER_add_now (&get_stop_finished, test_get);
1724 * Iterator called if the GET request initiated returns a response.
1726 * @param cls closure
1727 * @param exp when will this value expire
1728 * @param key key of the result
1729 * @param get_path NULL-terminated array of pointers
1730 * to the peers on reverse GET path (or NULL if not recorded)
1731 * @param put_path NULL-terminated array of pointers
1732 * to the peers on the PUT path (or NULL if not recorded)
1733 * @param type type of the result
1734 * @param size number of bytes in data
1735 * @param data pointer to the result data
1738 get_result_iterator (void *cls,
1739 struct GNUNET_TIME_Absolute exp,
1740 const GNUNET_HashCode * key,
1741 const struct GNUNET_PeerIdentity * const *get_path,
1742 const struct GNUNET_PeerIdentity * const *put_path,
1743 enum GNUNET_BLOCK_Type type,
1747 struct TestGetContext *test_get = cls;
1749 if (test_get->succeeded == GNUNET_YES)
1750 return; /* Get has already been successful, probably ending now */
1752 if (0 != memcmp(&known_keys[test_get->uid], key, sizeof (GNUNET_HashCode))) /* || (0 != memcmp(original_data, data, sizeof(original_data))))*/
1755 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Key or data is not the same as was inserted!\n");
1760 test_get->succeeded = GNUNET_YES;
1763 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Received correct GET response!\n");
1765 GNUNET_SCHEDULER_cancel(test_get->disconnect_task);
1766 GNUNET_SCHEDULER_add_continuation(&get_stop_task, test_get, GNUNET_SCHEDULER_REASON_PREREQ_DONE);
1772 * Set up some data, and call API PUT function
1775 do_get (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1777 struct TestGetContext *test_get = cls;
1781 GNUNET_SCHEDULER_cancel(die_task);
1782 GNUNET_SCHEDULER_add_now(&finish_testing, NULL);
1785 if (test_get == NULL)
1786 return; /* End of the list */
1788 /* Set this here in case we are re-running gets */
1789 test_get->succeeded = GNUNET_NO;
1791 if (GNUNET_YES != GNUNET_TESTING_daemon_running(test_get->daemon)) /* If the peer has been churned off, don't try issuing request from it! */
1793 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Peer we should issue get request from is down, skipping.\n");
1795 GNUNET_SCHEDULER_add_now (&get_stop_finished, test_get);
1796 GNUNET_SCHEDULER_add_now (&do_get, test_get->next);
1800 /* Check if more gets are outstanding than should be */
1801 if (outstanding_gets > max_outstanding_gets)
1803 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MILLISECONDS, 200), &do_get, test_get);
1807 /* Connect to the first peer's DHT */
1808 test_get->dht_handle = GNUNET_DHT_connect(test_get->daemon->cfg, 10);
1809 GNUNET_assert(test_get->dht_handle != NULL);
1812 /* Insert the data at the first peer */
1813 test_get->get_handle = GNUNET_DHT_get_start(test_get->dht_handle,
1815 GNUNET_BLOCK_TYPE_TEST,
1816 &known_keys[test_get->uid],
1821 &get_result_iterator,
1825 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Starting get for uid %u from peer %s\n",
1827 test_get->daemon->shortname);
1829 test_get->disconnect_task = GNUNET_SCHEDULER_add_delayed(get_timeout, &get_stop_task, test_get);
1831 /* Schedule the next request in the linked list of get requests */
1832 GNUNET_SCHEDULER_add_now (&do_get, test_get->next);
1836 * Called when the PUT request has been transmitted to the DHT service.
1837 * Schedule the GET request for some time in the future.
1840 put_finished (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1842 struct TestPutContext *test_put = cls;
1843 struct TopologyIteratorContext *topo_ctx;
1847 if (tc->reason == GNUNET_SCHEDULER_REASON_TIMEOUT)
1848 fprintf(stderr, "PUT Request failed!\n");
1850 /* Reset the daemon (which peer to insert at) for later put request iterations */
1851 if (replicate_same == GNUNET_NO)
1852 test_put->daemon = GNUNET_TESTING_daemon_get(pg, GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers));
1854 GNUNET_SCHEDULER_cancel(test_put->disconnect_task);
1855 test_put->disconnect_task = GNUNET_SCHEDULER_add_now(&put_disconnect_task, test_put);
1856 if (GNUNET_YES == update_meter(put_meter))
1858 GNUNET_assert(outstanding_puts == 0);
1859 GNUNET_SCHEDULER_cancel (die_task);
1860 if (dhtlog_handle != NULL)
1862 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
1863 topo_ctx->cont = &do_get;
1864 topo_ctx->cls = all_gets;
1865 topo_ctx->timeout = DEFAULT_GET_TIMEOUT;
1866 topo_ctx->peers_seen = GNUNET_CONTAINER_multihashmap_create(num_peers);
1867 die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_add(GNUNET_TIME_relative_add(DEFAULT_GET_TIMEOUT, all_get_timeout), DEFAULT_TOPOLOGY_CAPTURE_TIMEOUT),
1868 &end_badly, "from do gets (put finished)");
1869 GNUNET_SCHEDULER_add_now(&capture_current_topology, topo_ctx);
1873 fprintf(stderr, "Scheduling die task (put finished)\n");
1874 die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_add(DEFAULT_GET_TIMEOUT, all_get_timeout),
1875 &end_badly, "from do gets (put finished)");
1876 GNUNET_SCHEDULER_add_delayed(DEFAULT_GET_TIMEOUT, &do_get, all_gets);
1883 * Set up some data, and call API PUT function
1886 do_put (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1888 struct TestPutContext *test_put = cls;
1889 char data[test_data_size]; /* Made up data to store */
1893 if (test_put == NULL)
1894 return; /* End of list */
1896 if (GNUNET_YES != GNUNET_TESTING_daemon_running(test_put->daemon)) /* If the peer has been churned off, don't try issuing request from it! */
1898 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Peer we should issue put request at is down, skipping.\n");
1899 update_meter(put_meter);
1900 GNUNET_SCHEDULER_add_now (&do_put, test_put->next);
1904 for (i = 0; i < sizeof(data); i++)
1906 memset(&data[i], GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, UINT32_MAX), 1);
1909 if (outstanding_puts > max_outstanding_puts)
1911 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MILLISECONDS, 200), &do_put, test_put);
1916 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Starting put for uid %u from peer %s\n",
1918 test_put->daemon->shortname);
1920 test_put->dht_handle = GNUNET_DHT_connect(test_put->daemon->cfg, 10);
1922 GNUNET_assert(test_put->dht_handle != NULL);
1924 GNUNET_DHT_put(test_put->dht_handle,
1925 &known_keys[test_put->uid],
1928 GNUNET_BLOCK_TYPE_TEST,
1930 GNUNET_TIME_UNIT_FOREVER_ABS,
1932 &put_finished, test_put);
1933 test_put->disconnect_task = GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_get_forever(), &put_disconnect_task, test_put);
1934 rand = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, 2);
1935 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, rand), &do_put, test_put->next);
1939 schedule_find_peer_requests (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc);
1942 setup_malicious_peers (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc);
1945 * Given a number of total peers and a bucket size, estimate the number of
1946 * connections in a perfect kademlia topology.
1948 static unsigned int connection_estimate(unsigned int peer_count, unsigned int bucket_size)
1951 unsigned int filled;
1955 while (i >= bucket_size)
1960 filled++; /* Add one filled bucket to account for one "half full" and some miscellaneous */
1961 return filled * bucket_size * peer_count;
1967 * Callback for iterating over all the peer connections of a peer group.
1970 count_peers_cb (void *cls,
1971 const struct GNUNET_PeerIdentity *first,
1972 const struct GNUNET_PeerIdentity *second,
1975 struct FindPeerContext *find_peer_context = cls;
1976 if ((first != NULL) && (second != NULL))
1978 add_new_connection(find_peer_context, first, second);
1979 find_peer_context->current_peers++;
1983 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Peer count finished (%u connections), %u new peers, connection estimate %u (target %u)\n",
1984 find_peer_context->current_peers,
1985 find_peer_context->current_peers - find_peer_context->previous_peers,
1986 connection_estimate(num_peers, DEFAULT_BUCKET_SIZE),
1987 target_total_connections);
1989 if ((find_peer_context->last_sent < 8) ||
1990 ((find_peer_context->current_peers - find_peer_context->previous_peers > FIND_PEER_THRESHOLD) &&
1991 (find_peer_context->current_peers < 2 * connection_estimate(num_peers, DEFAULT_BUCKET_SIZE)) &&
1992 (GNUNET_TIME_absolute_get_remaining(find_peer_context->endtime).rel_value > 0) &&
1993 (find_peer_context->current_peers < target_total_connections)))
1995 GNUNET_SCHEDULER_add_now(&schedule_find_peer_requests, find_peer_context);
1999 GNUNET_CONTAINER_multihashmap_iterate(find_peer_context->peer_hash, &remove_peer_count, find_peer_context);
2000 GNUNET_CONTAINER_multihashmap_destroy(find_peer_context->peer_hash);
2001 GNUNET_CONTAINER_heap_destroy(find_peer_context->peer_min_heap);
2002 GNUNET_free(find_peer_context);
2003 fprintf(stderr, "Not sending any more find peer requests.\n");
2005 if (GNUNET_YES == malicious_after_settle)
2006 GNUNET_SCHEDULER_add_now(&setup_malicious_peers, NULL);
2013 * Set up a single find peer request for each peer in the topology. Do this
2014 * until the settle time is over, limited by the number of outstanding requests
2015 * and the time allowed for each one!
2018 schedule_find_peer_requests (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
2020 struct FindPeerContext *find_peer_ctx = cls;
2021 struct TestFindPeer *test_find_peer;
2022 struct PeerCount *peer_count;
2026 if (find_peer_ctx->previous_peers == 0) /* First time, go slowly */
2027 find_peer_ctx->total = 1;
2028 else if (find_peer_ctx->current_peers - find_peer_ctx->previous_peers > MAX_FIND_PEER_CUTOFF) /* Found LOTS of peers, still go slowly */
2029 find_peer_ctx->total = find_peer_ctx->last_sent - (find_peer_ctx->last_sent / 8);
2031 find_peer_ctx->total = find_peer_ctx->last_sent * 2;
2033 if (find_peer_ctx->total > max_outstanding_find_peers)
2034 find_peer_ctx->total = max_outstanding_find_peers;
2036 if (find_peer_ctx->total > num_peers) /* Don't try to send more messages than we have peers! */
2037 find_peer_ctx->total = num_peers;
2039 find_peer_ctx->last_sent = find_peer_ctx->total;
2040 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Sending %u find peer messages (goal at least %u connections)\n", find_peer_ctx->total, target_total_connections);
2042 find_peer_offset = GNUNET_TIME_relative_divide(find_peer_delay, find_peer_ctx->total);
2043 for (i = 0; i < find_peer_ctx->total; i++)
2045 test_find_peer = GNUNET_malloc(sizeof(struct TestFindPeer));
2046 if (find_peer_ctx->previous_peers == 0) /* If we haven't sent any requests yet, choose random peers */
2049 * Attempt to spread find peer requests across even sections of the peer address
2050 * space. Choose basically 1 peer in every num_peers / max_outstanding_requests
2051 * each time, then offset it by a randomish value.
2053 * For instance, if num_peers is 100 and max_outstanding is 10, first chosen peer
2054 * will be between 0 - 10, second between 10 - 20, etc.
2056 random = (num_peers / find_peer_ctx->total) * i;
2057 random = random + GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, (num_peers / find_peer_ctx->total));
2058 if (random >= num_peers)
2060 random = random - num_peers;
2063 random = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers);
2065 test_find_peer->daemon = GNUNET_TESTING_daemon_get(pg, random);
2067 else /* If we have sent requests, choose peers with a low number of connections to send requests from */
2069 peer_count = GNUNET_CONTAINER_heap_remove_root(find_peer_ctx->peer_min_heap);
2070 GNUNET_assert(GNUNET_YES == GNUNET_CONTAINER_multihashmap_remove(find_peer_ctx->peer_hash, &peer_count->peer_id.hashPubKey, peer_count));
2071 test_find_peer->daemon = GNUNET_TESTING_daemon_get_by_id(pg, &peer_count->peer_id);
2072 GNUNET_assert(test_find_peer->daemon != NULL);
2075 test_find_peer->find_peer_context = find_peer_ctx;
2076 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_multiply(find_peer_offset, i), &send_find_peer_request, test_find_peer);
2079 if ((find_peer_ctx->peer_hash == NULL) && (find_peer_ctx->peer_min_heap == NULL))
2081 find_peer_ctx->peer_hash = GNUNET_CONTAINER_multihashmap_create(num_peers);
2082 find_peer_ctx->peer_min_heap = GNUNET_CONTAINER_heap_create(GNUNET_CONTAINER_HEAP_ORDER_MIN);
2086 GNUNET_CONTAINER_multihashmap_iterate(find_peer_ctx->peer_hash, &remove_peer_count, find_peer_ctx);
2087 GNUNET_CONTAINER_multihashmap_destroy(find_peer_ctx->peer_hash);
2088 find_peer_ctx->peer_hash = GNUNET_CONTAINER_multihashmap_create(num_peers);
2091 GNUNET_assert(0 == GNUNET_CONTAINER_multihashmap_size(find_peer_ctx->peer_hash));
2092 GNUNET_assert(0 == GNUNET_CONTAINER_heap_get_size(find_peer_ctx->peer_min_heap));
2097 * Set up some all of the put and get operations we want
2098 * to do. Allocate data structure for each, add to list,
2099 * then call actual insert functions.
2102 setup_puts_and_gets (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
2105 uint32_t temp_daemon;
2106 struct TestPutContext *test_put;
2107 struct TestGetContext *test_get;
2109 int remember[num_puts][num_peers];
2110 memset(&remember, 0, sizeof(int) * num_puts * num_peers);
2112 known_keys = GNUNET_malloc(sizeof(GNUNET_HashCode) * num_puts);
2113 for (i = 0; i < num_puts; i++)
2115 test_put = GNUNET_malloc(sizeof(struct TestPutContext));
2117 GNUNET_CRYPTO_hash_create_random (GNUNET_CRYPTO_QUALITY_WEAK, &known_keys[i]);
2118 temp_daemon = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers);
2119 test_put->daemon = GNUNET_TESTING_daemon_get(pg, temp_daemon);
2120 test_put->next = all_puts;
2121 all_puts = test_put;
2124 for (i = 0; i < num_gets; i++)
2126 test_get = GNUNET_malloc(sizeof(struct TestGetContext));
2127 test_get->uid = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_puts);
2129 while (remember[test_get->uid][temp_daemon] == 1)
2130 temp_daemon = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers);
2131 remember[test_get->uid][temp_daemon] = 1;
2133 test_get->daemon = GNUNET_TESTING_daemon_get(pg, GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers));
2134 test_get->next = all_gets;
2135 all_gets = test_get;
2138 /*GNUNET_SCHEDULER_cancel (die_task);*/
2139 die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, num_puts * 2),
2140 &end_badly, "from do puts");
2141 GNUNET_SCHEDULER_add_now (&do_put, all_puts);
2146 * Set up some all of the put and get operations we want
2147 * to do. Allocate data structure for each, add to list,
2148 * then call actual insert functions.
2151 continue_puts_and_gets (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
2155 struct TopologyIteratorContext *topo_ctx;
2156 struct FindPeerContext *find_peer_context;
2157 if (dhtlog_handle != NULL)
2159 if (settle_time >= 180 * 2)
2160 max = (settle_time / 180) - 2;
2163 for (i = 1; i < max; i++)
2165 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
2166 topo_ctx->current_iteration = i;
2167 topo_ctx->total_iterations = max;
2168 topo_ctx->peers_seen = GNUNET_CONTAINER_multihashmap_create(num_peers);
2169 //fprintf(stderr, "scheduled topology iteration in %d minutes\n", i);
2170 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MINUTES, i * 3), &capture_current_topology, topo_ctx);
2172 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
2173 topo_ctx->cont = &setup_puts_and_gets;
2174 topo_ctx->peers_seen = GNUNET_CONTAINER_multihashmap_create(num_peers);
2175 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, (settle_time + 90)), &capture_current_topology, topo_ctx);
2178 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, (settle_time + 90)), &setup_puts_and_gets, NULL);
2180 if (dhtlog_handle != NULL)
2181 dhtlog_handle->insert_round(DHT_ROUND_NORMAL, rounds_finished);
2183 if (GNUNET_YES != malicious_after_settle)
2185 GNUNET_SCHEDULER_add_now(&setup_malicious_peers, NULL);
2188 if (GNUNET_YES == do_find_peer)
2190 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Scheduling find peer requests during \"settle\" time.\n");
2191 find_peer_context = GNUNET_malloc(sizeof(struct FindPeerContext));
2192 find_peer_context->count_peers_cb = &count_peers_cb;
2193 find_peer_context->endtime = GNUNET_TIME_relative_to_absolute(GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, settle_time));
2194 GNUNET_SCHEDULER_add_now(&schedule_find_peer_requests, find_peer_context);
2198 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Assuming automatic DHT find peer requests.\n");
2203 * Task to release DHT handles
2206 malicious_disconnect_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
2208 struct MaliciousContext *ctx = cls;
2209 outstanding_malicious--;
2210 malicious_completed++;
2211 ctx->disconnect_task = GNUNET_SCHEDULER_NO_TASK;
2212 GNUNET_DHT_disconnect(ctx->dht_handle);
2213 ctx->dht_handle = NULL;
2216 if (malicious_completed == malicious_getters + malicious_putters + malicious_droppers)
2218 fprintf(stderr, "Finished setting all malicious peers up!\n");
2224 * Task to release DHT handles
2227 malicious_done_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
2229 struct MaliciousContext *ctx = cls;
2230 GNUNET_SCHEDULER_cancel(ctx->disconnect_task);
2231 GNUNET_SCHEDULER_add_now(&malicious_disconnect_task, ctx);
2235 * Set up some data, and call API PUT function
2238 set_malicious (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
2240 struct MaliciousContext *ctx = cls;
2242 if (outstanding_malicious > DEFAULT_MAX_OUTSTANDING_GETS)
2244 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MILLISECONDS, 100), &set_malicious, ctx);
2248 if (ctx->dht_handle == NULL)
2250 ctx->dht_handle = GNUNET_DHT_connect(ctx->daemon->cfg, 1);
2251 outstanding_malicious++;
2254 GNUNET_assert(ctx->dht_handle != NULL);
2258 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Setting peer %s malicious type %d\n",
2259 ctx->daemon->shortname, ctx->malicious_type);
2262 switch (ctx->malicious_type)
2264 case GNUNET_MESSAGE_TYPE_DHT_MALICIOUS_GET:
2265 GNUNET_DHT_set_malicious_getter(ctx->dht_handle, malicious_get_frequency);
2266 GNUNET_SCHEDULER_add_now (&malicious_done_task, ctx);
2268 case GNUNET_MESSAGE_TYPE_DHT_MALICIOUS_PUT:
2269 GNUNET_DHT_set_malicious_putter(ctx->dht_handle, malicious_put_frequency);
2270 GNUNET_SCHEDULER_add_now (&malicious_done_task, ctx);
2272 case GNUNET_MESSAGE_TYPE_DHT_MALICIOUS_DROP:
2273 GNUNET_DHT_set_malicious_dropper(ctx->dht_handle);
2274 GNUNET_SCHEDULER_add_now (&malicious_done_task, ctx);
2280 ctx->disconnect_task = GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_UNIT_FOREVER_REL,
2281 &malicious_disconnect_task, ctx);
2285 * Select randomly from set of known peers,
2286 * set the desired number of peers to the
2287 * proper malicious types.
2290 setup_malicious_peers (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
2292 struct MaliciousContext *ctx;
2294 uint32_t temp_daemon;
2296 for (i = 0; i < malicious_getters; i++)
2298 ctx = GNUNET_malloc(sizeof(struct MaliciousContext));
2299 temp_daemon = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers);
2300 ctx->daemon = GNUNET_TESTING_daemon_get(pg, temp_daemon);
2301 ctx->malicious_type = GNUNET_MESSAGE_TYPE_DHT_MALICIOUS_GET;
2302 GNUNET_SCHEDULER_add_now (&set_malicious, ctx);
2306 for (i = 0; i < malicious_putters; i++)
2308 ctx = GNUNET_malloc(sizeof(struct MaliciousContext));
2309 temp_daemon = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers);
2310 ctx->daemon = GNUNET_TESTING_daemon_get(pg, temp_daemon);
2311 ctx->malicious_type = GNUNET_MESSAGE_TYPE_DHT_MALICIOUS_PUT;
2312 GNUNET_SCHEDULER_add_now (&set_malicious, ctx);
2316 for (i = 0; i < malicious_droppers; i++)
2318 ctx = GNUNET_malloc(sizeof(struct MaliciousContext));
2319 temp_daemon = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers);
2320 ctx->daemon = GNUNET_TESTING_daemon_get(pg, temp_daemon);
2321 ctx->malicious_type = GNUNET_MESSAGE_TYPE_DHT_MALICIOUS_DROP;
2322 GNUNET_SCHEDULER_add_now (&set_malicious, ctx);
2327 * This function is called whenever a connection attempt is finished between two of
2328 * the started peers (started with GNUNET_TESTING_daemons_start). The total
2329 * number of times this function is called should equal the number returned
2330 * from the GNUNET_TESTING_connect_topology call.
2332 * The emsg variable is NULL on success (peers connected), and non-NULL on
2333 * failure (peers failed to connect).
2336 topology_callback (void *cls,
2337 const struct GNUNET_PeerIdentity *first,
2338 const struct GNUNET_PeerIdentity *second,
2340 const struct GNUNET_CONFIGURATION_Handle *first_cfg,
2341 const struct GNUNET_CONFIGURATION_Handle *second_cfg,
2342 struct GNUNET_TESTING_Daemon *first_daemon,
2343 struct GNUNET_TESTING_Daemon *second_daemon,
2346 struct TopologyIteratorContext *topo_ctx;
2349 total_connections++;
2351 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "connected peer %s to peer %s, distance %u\n",
2352 first_daemon->shortname,
2353 second_daemon->shortname,
2359 failed_connections++;
2360 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Failed to connect peer %s to peer %s with error :\n%s\n",
2361 first_daemon->shortname,
2362 second_daemon->shortname, emsg);
2364 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Failed to connect peer %s to peer %s with error :\n%s\n",
2365 first_daemon->shortname,
2366 second_daemon->shortname, emsg);
2370 GNUNET_assert(peer_connect_meter != NULL);
2371 if (GNUNET_YES == update_meter(peer_connect_meter))
2374 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2375 "Created %d total connections, which is our target number! Starting next phase of testing.\n",
2378 if (failed_connections > 0)
2379 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "While connecting, had %u failed connections.\n", failed_connections);
2380 if (dhtlog_handle != NULL)
2382 dhtlog_handle->update_connections (total_connections);
2383 dhtlog_handle->insert_topology(expected_connections);
2386 GNUNET_SCHEDULER_cancel (die_task);
2388 if ((dhtlog_handle != NULL) && (settle_time > 0))
2390 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
2391 topo_ctx->cont = &continue_puts_and_gets;
2392 topo_ctx->peers_seen = GNUNET_CONTAINER_multihashmap_create(num_peers);
2393 GNUNET_SCHEDULER_add_now(&capture_current_topology, topo_ctx);
2396 else if (total_connections + failed_connections == expected_connections)
2398 GNUNET_SCHEDULER_cancel (die_task);
2399 die_task = GNUNET_SCHEDULER_add_now (&end_badly, "from topology_callback (too many failed connections)");
2404 peers_started_callback (void *cls,
2405 const struct GNUNET_PeerIdentity *id,
2406 const struct GNUNET_CONFIGURATION_Handle *cfg,
2407 struct GNUNET_TESTING_Daemon *d, const char *emsg)
2411 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Failed to start daemon with error: `%s'\n",
2415 GNUNET_assert (id != NULL);
2418 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Started daemon %llu out of %llu\n",
2419 (num_peers - peers_left) + 1, num_peers);
2424 if (GNUNET_YES == update_meter(peer_start_meter))
2427 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2428 "All %d daemons started, now connecting peers!\n",
2431 GNUNET_SCHEDULER_cancel (die_task);
2433 expected_connections = UINT_MAX;
2434 if ((pg != NULL) && (peers_left == 0))
2436 expected_connections = GNUNET_TESTING_connect_topology (pg, connect_topology, connect_topology_option, connect_topology_option_modifier, NULL, NULL);
2438 peer_connect_meter = create_meter(expected_connections, "Peer connection ", GNUNET_YES);
2439 fprintf(stderr, "Have %d expected connections\n", expected_connections);
2442 if (expected_connections == GNUNET_SYSERR)
2444 die_task = GNUNET_SCHEDULER_add_now (&end_badly, "from connect topology (bad return)");
2447 die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, DEFAULT_CONNECT_TIMEOUT * expected_connections),
2448 &end_badly, "from connect topology (timeout)");
2457 peers_left = num_peers; /* Reset counter */
2458 if (GNUNET_TESTING_create_topology (pg, topology, blacklist_topology, blacklist_transports) != GNUNET_SYSERR)
2461 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2462 "Topology set up, now starting peers!\n");
2464 GNUNET_TESTING_daemons_continue_startup(pg);
2468 GNUNET_SCHEDULER_cancel (die_task);
2469 die_task = GNUNET_SCHEDULER_add_now (&end_badly, "from create topology (bad return)");
2471 GNUNET_free_non_null(blacklist_transports);
2472 GNUNET_SCHEDULER_cancel (die_task);
2473 die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(seconds_per_peer_start, num_peers),
2474 &end_badly, "from continue startup (timeout)");
2478 * Callback indicating that the hostkey was created for a peer.
2481 * @param id the peer identity
2482 * @param d the daemon handle (pretty useless at this point, remove?)
2483 * @param emsg non-null on failure
2486 hostkey_callback (void *cls,
2487 const struct GNUNET_PeerIdentity *id,
2488 struct GNUNET_TESTING_Daemon *d,
2493 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Hostkey callback received error: %s\n", emsg);
2497 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2498 "Hostkey (%d/%d) created for peer `%s'\n",
2499 num_peers - peers_left, num_peers, GNUNET_i2s(id));
2503 if (GNUNET_YES == update_meter(hostkey_meter))
2506 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2507 "All %d hostkeys created, now creating topology!\n",
2510 GNUNET_SCHEDULER_cancel (die_task);
2511 /* Set up task in case topology creation doesn't finish
2512 * within a reasonable amount of time */
2513 die_task = GNUNET_SCHEDULER_add_delayed (DEFAULT_TOPOLOGY_TIMEOUT,
2514 &end_badly, "from create_topology");
2515 GNUNET_SCHEDULER_add_now(&create_topology, NULL);
2524 const char *cfgfile, const struct GNUNET_CONFIGURATION_Handle *cfg)
2527 struct GNUNET_DHTLOG_TrialInfo trial_info;
2528 struct GNUNET_TESTING_Host *hosts;
2529 struct GNUNET_TESTING_Host *temphost;
2530 struct GNUNET_TESTING_Host *tempnext;
2532 char *connect_topology_str;
2533 char *blacklist_topology_str;
2534 char *connect_topology_option_str;
2535 char *connect_topology_option_modifier_string;
2537 char *topology_percentage_str;
2538 float topology_percentage;
2539 char *topology_probability_str;
2541 float topology_probability;
2542 unsigned long long temp_config_number;
2543 unsigned long long trial_to_run;
2546 int strict_kademlia;
2550 char *churn_filename;
2557 rounds_finished = 0;
2558 memset(&trial_info, 0, sizeof(struct GNUNET_DHTLOG_TrialInfo));
2559 /* Get path from configuration file */
2560 if (GNUNET_YES != GNUNET_CONFIGURATION_get_value_string(cfg, "paths", "servicehome", &test_directory))
2566 /* Get number of peers to start from configuration */
2567 if (GNUNET_SYSERR ==
2568 GNUNET_CONFIGURATION_get_value_number (cfg, "testing", "num_peers",
2571 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2572 "Number of peers must be specified in section %s option %s\n", "TESTING", "NUM_PEERS");
2574 GNUNET_assert(num_peers > 0 && num_peers < ULONG_MAX);
2577 * Get DHT specific testing options.
2579 if ((GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht_testing", "mysql_logging")) ||
2580 (GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht_testing", "mysql_logging_extended")))
2582 dhtlog_handle = GNUNET_DHTLOG_connect(cfg);
2583 if (dhtlog_handle == NULL)
2585 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2586 "Could not connect to mysql server for logging, will NOT log dht operations!");
2592 stop_closest = GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht", "stop_on_closest");
2593 if (stop_closest == GNUNET_SYSERR)
2594 stop_closest = GNUNET_NO;
2596 stop_found = GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht", "stop_found");
2597 if (stop_found == GNUNET_SYSERR)
2598 stop_found = GNUNET_NO;
2600 strict_kademlia = GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht", "strict_kademlia");
2601 if (strict_kademlia == GNUNET_SYSERR)
2602 strict_kademlia = GNUNET_NO;
2605 GNUNET_CONFIGURATION_get_value_string (cfg, "dht_testing", "comment",
2607 trialmessage = NULL;
2610 /** Check for a churn file to do churny simulation */
2612 GNUNET_CONFIGURATION_get_value_string(cfg, "dht_testing", "churn_file",
2615 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Reading churn data from %s\n", churn_filename);
2616 if (GNUNET_OK != GNUNET_DISK_file_test (churn_filename))
2618 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Error reading churn file!\n");
2619 GNUNET_free_non_null(trialmessage);
2620 GNUNET_free(churn_filename);
2623 if ((0 != STAT (churn_filename, &frstat)) || (frstat.st_size == 0))
2625 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
2626 "Could not open file specified for churn data, ending test!");
2628 GNUNET_free_non_null(trialmessage);
2629 GNUNET_free(churn_filename);
2633 churn_data = GNUNET_malloc_large (frstat.st_size);
2634 GNUNET_assert(churn_data != NULL);
2635 if (frstat.st_size !=
2636 GNUNET_DISK_fn_read (churn_filename, churn_data, frstat.st_size))
2638 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
2639 "Could not read file %s specified for churn, ending test!", churn_filename);
2640 GNUNET_free (churn_filename);
2641 GNUNET_free (churn_data);
2642 GNUNET_free_non_null(trialmessage);
2646 GNUNET_free_non_null(churn_filename);
2650 /* Read the first line */
2651 while (count < frstat.st_size)
2654 if (((churn_data[count] == '\n')) && (buf != &churn_data[count]))
2656 churn_data[count] = '\0';
2657 if (1 != sscanf(buf, "%u", &churn_rounds))
2659 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Failed to read number of rounds from churn file, ending test!\n");
2661 GNUNET_free_non_null(trialmessage);
2662 GNUNET_free_non_null(churn_data);
2665 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Read %u rounds from churn file\n", churn_rounds);
2666 buf = &churn_data[count + 1];
2667 churn_array = GNUNET_malloc(sizeof(unsigned int) * churn_rounds);
2668 break; /* Done with this part */
2672 if (GNUNET_OK != GNUNET_CONFIGURATION_get_value_number(cfg, "dht_testing", "churns_per_round", &churns_per_round))
2674 churns_per_round = (unsigned long long)churn_rounds;
2678 while ((count < frstat.st_size) && (line_number < churn_rounds))
2681 if (((churn_data[count] == '\n')) && (buf != &churn_data[count]))
2683 churn_data[count] = '\0';
2685 ret = sscanf(buf, "%u", &churn_array[line_number]);
2688 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Read %u peers in round %u\n", churn_array[line_number], line_number);
2693 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Error reading line `%s' in hostfile\n", buf);
2694 buf = &churn_data[count + 1];
2697 buf = &churn_data[count + 1];
2699 else if (churn_data[count] == '\n') /* Blank line */
2700 buf = &churn_data[count + 1];
2703 GNUNET_free_non_null(churn_data);
2705 /* Check for a hostfile containing user@host:port triples */
2707 GNUNET_CONFIGURATION_get_value_string (cfg, "testing", "hostfile",
2714 if (hostfile != NULL)
2716 if (GNUNET_OK != GNUNET_DISK_file_test (hostfile))
2717 GNUNET_DISK_fn_write (hostfile, NULL, 0, GNUNET_DISK_PERM_USER_READ
2718 | GNUNET_DISK_PERM_USER_WRITE);
2719 if ((0 != STAT (hostfile, &frstat)) || (frstat.st_size == 0))
2721 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
2722 "Could not open file specified for host list, ending test!");
2724 GNUNET_free_non_null(trialmessage);
2725 GNUNET_free(hostfile);
2729 data = GNUNET_malloc_large (frstat.st_size);
2730 GNUNET_assert(data != NULL);
2731 if (frstat.st_size !=
2732 GNUNET_DISK_fn_read (hostfile, data, frstat.st_size))
2734 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
2735 "Could not read file %s specified for host list, ending test!", hostfile);
2736 GNUNET_free (hostfile);
2738 GNUNET_free_non_null(trialmessage);
2742 GNUNET_free_non_null(hostfile);
2746 while (count < frstat.st_size - 1)
2749 /* if (((data[count] == '\n') || (data[count] == '\0')) && (buf != &data[count]))*/
2750 if (((data[count] == '\n')) && (buf != &data[count]))
2753 temphost = GNUNET_malloc(sizeof(struct GNUNET_TESTING_Host));
2754 ret = sscanf(buf, "%a[a-zA-Z0-9]@%a[a-zA-Z0-9.]:%hd", &temphost->username, &temphost->hostname, &temphost->port);
2757 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Successfully read host %s, port %d and user %s from file\n", temphost->hostname, temphost->port, temphost->username);
2761 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Error reading line `%s' in hostfile\n", buf);
2762 GNUNET_free(temphost);
2763 buf = &data[count + 1];
2766 /* temphost->hostname = buf; */
2767 temphost->next = hosts;
2769 buf = &data[count + 1];
2771 else if ((data[count] == '\n') || (data[count] == '\0'))
2772 buf = &data[count + 1];
2775 GNUNET_free_non_null(data);
2777 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "malicious_getters",
2778 &malicious_getters))
2779 malicious_getters = 0;
2782 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "malicious_putters",
2783 &malicious_putters))
2784 malicious_putters = 0;
2787 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "malicious_droppers",
2788 &malicious_droppers))
2789 malicious_droppers = 0;
2792 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "settle_time",
2796 if (GNUNET_SYSERR ==
2797 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "num_puts",
2799 num_puts = num_peers;
2801 if (GNUNET_SYSERR ==
2802 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "put_replication",
2804 put_replication = DEFAULT_PUT_REPLICATION;
2806 if (GNUNET_SYSERR ==
2807 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "num_gets",
2809 num_gets = num_peers;
2811 if (GNUNET_SYSERR ==
2812 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "get_replication",
2814 get_replication = DEFAULT_GET_REPLICATION;
2817 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "find_peer_delay",
2818 &temp_config_number))
2819 find_peer_delay = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_config_number);
2821 find_peer_delay = DEFAULT_FIND_PEER_DELAY;
2824 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "concurrent_find_peers",
2825 &temp_config_number))
2826 max_outstanding_find_peers = temp_config_number;
2828 max_outstanding_find_peers = DEFAULT_MAX_OUTSTANDING_FIND_PEERS;
2831 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "get_timeout",
2832 &temp_config_number))
2833 get_timeout = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_config_number);
2835 get_timeout = DEFAULT_GET_TIMEOUT;
2838 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "concurrent_puts",
2839 &temp_config_number))
2840 max_outstanding_puts = temp_config_number;
2842 max_outstanding_puts = DEFAULT_MAX_OUTSTANDING_PUTS;
2845 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "concurrent_gets",
2846 &temp_config_number))
2847 max_outstanding_gets = temp_config_number;
2849 max_outstanding_gets = DEFAULT_MAX_OUTSTANDING_GETS;
2852 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "timeout",
2853 &temp_config_number))
2854 all_get_timeout = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_config_number);
2856 all_get_timeout.rel_value = get_timeout.rel_value * num_gets;
2859 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "get_delay",
2860 &temp_config_number))
2861 get_delay = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_config_number);
2863 get_delay = DEFAULT_GET_DELAY;
2866 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "put_delay",
2867 &temp_config_number))
2868 put_delay = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_config_number);
2870 put_delay = DEFAULT_PUT_DELAY;
2873 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "peer_start_timeout",
2874 &temp_config_number))
2875 seconds_per_peer_start = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_config_number);
2877 seconds_per_peer_start = DEFAULT_SECONDS_PER_PEER_START;
2880 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "data_size",
2881 &temp_config_number))
2882 test_data_size = temp_config_number;
2884 test_data_size = DEFAULT_TEST_DATA_SIZE;
2887 * Get testing related options.
2889 if (GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno(cfg, "DHT_TESTING", "REPLICATE_SAME"))
2890 replicate_same = GNUNET_YES;
2893 * Get testing related options.
2895 if (GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno(cfg, "DHT_TESTING", "GET_FROM_SAME"))
2896 get_from_same = GNUNET_YES;
2899 if (GNUNET_NO == GNUNET_CONFIGURATION_get_value_time (cfg, "DHT_TESTING",
2900 "MALICIOUS_GET_FREQUENCY",
2901 &malicious_get_frequency))
2902 malicious_get_frequency = DEFAULT_MALICIOUS_GET_FREQUENCY;
2905 if (GNUNET_NO == GNUNET_CONFIGURATION_get_value_time (cfg, "DHT_TESTING",
2906 "MALICIOUS_PUT_FREQUENCY",
2907 &malicious_put_frequency))
2908 malicious_put_frequency = DEFAULT_MALICIOUS_PUT_FREQUENCY;
2910 if (GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno(cfg, "DHT_TESTING", "MALICIOUS_AFTER_SETTLE"))
2911 malicious_after_settle = GNUNET_YES;
2913 /* The normal behavior of the DHT is to do find peer requests
2914 * on its own. Only if this is explicitly turned off should
2915 * the testing driver issue find peer requests (even though
2916 * this is likely the default when testing).
2919 GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht",
2922 do_find_peer = GNUNET_YES;
2926 GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht",
2929 in_dht_replication = GNUNET_YES;
2932 if (GNUNET_YES != GNUNET_CONFIGURATION_get_value_number (cfg, "DHT_TESTING",
2939 if (GNUNET_YES == GNUNET_CONFIGURATION_get_value_number (cfg, "DHT_TESTING",
2941 &temp_config_number))
2943 find_peer_delay = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_config_number);
2946 find_peer_delay = DEFAULT_FIND_PEER_DELAY;
2948 if (GNUNET_YES != GNUNET_CONFIGURATION_get_value_number(cfg, "DHT_TESTING", "ROUND_DELAY", &round_delay))
2951 if (GNUNET_NO == GNUNET_CONFIGURATION_get_value_number (cfg, "DHT_TESTING",
2952 "OUTSTANDING_FIND_PEERS",
2953 &max_outstanding_find_peers))
2954 max_outstanding_find_peers = DEFAULT_MAX_OUTSTANDING_FIND_PEERS;
2956 if (GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht", "strict_kademlia"))
2957 max_outstanding_find_peers = max_outstanding_find_peers * 1;
2959 find_peer_offset = GNUNET_TIME_relative_divide (find_peer_delay, max_outstanding_find_peers);
2961 if (GNUNET_SYSERR ==
2962 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "num_rounds",
2968 if ((GNUNET_SYSERR ==
2969 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "target_total_connections",
2970 &target_total_connections)) ||
2971 (target_total_connections == 0))
2973 target_total_connections = connection_estimate(num_peers, DEFAULT_BUCKET_SIZE);
2976 topology_str = NULL;
2978 GNUNET_CONFIGURATION_get_value_string(cfg, "testing", "topology",
2979 &topology_str)) && (GNUNET_NO == GNUNET_TESTING_topology_get(&topology, topology_str)))
2981 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2982 "Invalid topology `%s' given for section %s option %s\n", topology_str, "TESTING", "TOPOLOGY");
2983 topology = GNUNET_TESTING_TOPOLOGY_CLIQUE; /* Defaults to NONE, so set better default here */
2987 GNUNET_CONFIGURATION_get_value_string (cfg, "testing", "percentage",
2988 &topology_percentage_str))
2989 topology_percentage = 0.5;
2992 topology_percentage = atof (topology_percentage_str);
2993 GNUNET_free(topology_percentage_str);
2997 GNUNET_CONFIGURATION_get_value_string (cfg, "testing", "probability",
2998 &topology_probability_str))
2999 topology_probability = 0.5;
3002 topology_probability = atof (topology_probability_str);
3003 GNUNET_free(topology_probability_str);
3007 GNUNET_CONFIGURATION_get_value_string(cfg, "testing", "connect_topology",
3008 &connect_topology_str)) && (GNUNET_NO == GNUNET_TESTING_topology_get(&connect_topology, connect_topology_str)))
3010 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
3011 "Invalid connect topology `%s' given for section %s option %s\n", connect_topology_str, "TESTING", "CONNECT_TOPOLOGY");
3013 GNUNET_free_non_null(connect_topology_str);
3016 GNUNET_CONFIGURATION_get_value_string(cfg, "testing", "connect_topology_option",
3017 &connect_topology_option_str)) && (GNUNET_NO == GNUNET_TESTING_topology_option_get(&connect_topology_option, connect_topology_option_str)))
3019 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
3020 "Invalid connect topology option `%s' given for section %s option %s\n", connect_topology_option_str, "TESTING", "CONNECT_TOPOLOGY_OPTION");
3021 connect_topology_option = GNUNET_TESTING_TOPOLOGY_OPTION_ALL; /* Defaults to NONE, set to ALL */
3023 GNUNET_free_non_null(connect_topology_option_str);
3026 GNUNET_CONFIGURATION_get_value_string (cfg, "testing", "connect_topology_option_modifier",
3027 &connect_topology_option_modifier_string))
3029 if (sscanf(connect_topology_option_modifier_string, "%lf", &connect_topology_option_modifier) != 1)
3031 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
3032 _("Invalid value `%s' for option `%s' in section `%s': expected float\n"),
3033 connect_topology_option_modifier_string,
3034 "connect_topology_option_modifier",
3037 GNUNET_free (connect_topology_option_modifier_string);
3040 if (GNUNET_YES != GNUNET_CONFIGURATION_get_value_string (cfg, "testing", "blacklist_transports",
3041 &blacklist_transports))
3042 blacklist_transports = NULL;
3045 GNUNET_CONFIGURATION_get_value_string(cfg, "testing", "blacklist_topology",
3046 &blacklist_topology_str)) &&
3047 (GNUNET_NO == GNUNET_TESTING_topology_get(&blacklist_topology, blacklist_topology_str)))
3049 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
3050 "Invalid topology `%s' given for section %s option %s\n", topology_str, "TESTING", "BLACKLIST_TOPOLOGY");
3052 GNUNET_free_non_null(topology_str);
3053 GNUNET_free_non_null(blacklist_topology_str);
3055 /* Set peers_left so we know when all peers started */
3056 peers_left = num_peers;
3059 /* Set up a task to end testing if peer start fails */
3060 die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(seconds_per_peer_start, num_peers),
3061 &end_badly, "didn't generate all hostkeys within allowed startup time!");
3063 if (dhtlog_handle == NULL)
3064 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
3065 "dhtlog_handle is NULL!");
3067 trial_info.other_identifier = (unsigned int)trial_to_run;
3068 trial_info.num_nodes = peers_left;
3069 trial_info.topology = topology;
3070 trial_info.blacklist_topology = blacklist_topology;
3071 trial_info.connect_topology = connect_topology;
3072 trial_info.connect_topology_option = connect_topology_option;
3073 trial_info.connect_topology_option_modifier = connect_topology_option_modifier;
3074 trial_info.topology_percentage = topology_percentage;
3075 trial_info.topology_probability = topology_probability;
3076 trial_info.puts = num_puts;
3077 trial_info.gets = num_gets;
3078 trial_info.concurrent = max_outstanding_gets;
3079 trial_info.settle_time = settle_time;
3080 trial_info.num_rounds = total_rounds;
3081 trial_info.malicious_getters = malicious_getters;
3082 trial_info.malicious_putters = malicious_putters;
3083 trial_info.malicious_droppers = malicious_droppers;
3084 trial_info.malicious_get_frequency = malicious_get_frequency.rel_value;
3085 trial_info.malicious_put_frequency = malicious_put_frequency.rel_value;
3086 trial_info.stop_closest = stop_closest;
3087 trial_info.stop_found = stop_found;
3088 trial_info.strict_kademlia = strict_kademlia;
3090 if (trialmessage != NULL)
3091 trial_info.message = trialmessage;
3093 trial_info.message = "";
3095 if (dhtlog_handle != NULL)
3096 dhtlog_handle->insert_trial(&trial_info);
3098 GNUNET_free_non_null(trialmessage);
3100 hostkey_meter = create_meter(peers_left, "Hostkeys created ", GNUNET_YES);
3101 peer_start_meter = create_meter(peers_left, "Peers started ", GNUNET_YES);
3103 put_meter = create_meter(num_puts, "Puts completed ", GNUNET_YES);
3104 get_meter = create_meter(num_gets, "Gets completed ", GNUNET_YES);
3105 pg = GNUNET_TESTING_daemons_start (cfg,
3107 GNUNET_TIME_relative_multiply(seconds_per_peer_start, num_peers),
3108 &hostkey_callback, NULL,
3109 &peers_started_callback, NULL,
3110 &topology_callback, NULL,
3113 while (temphost != NULL)
3115 tempnext = temphost->next;
3116 GNUNET_free (temphost->username);
3117 GNUNET_free (temphost->hostname);
3118 GNUNET_free (temphost);
3119 temphost = tempnext;
3124 main (int argc, char *argv[])
3127 struct GNUNET_GETOPT_CommandLineOption options[] = {
3128 GNUNET_GETOPT_OPTION_END
3131 ret = GNUNET_PROGRAM_run (argc,
3132 argv, "gnunet-dht-driver", "nohelp",
3133 options, &run, &ok);
3136 if (ret != GNUNET_OK)
3138 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "`gnunet-dht-driver': Failed with error code %d\n", ret);
3142 * Need to remove base directory, subdirectories taken care
3143 * of by the testing framework.
3145 if (GNUNET_DISK_directory_remove (test_directory) != GNUNET_OK)
3147 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Failed to remove testing directory %s\n", test_directory);
3152 /* end of gnunet-dht-driver.c */