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) &&
1143 (GNUNET_TIME_absolute_get_remaining(test_find_peer->find_peer_context->endtime).rel_value > 60))
1145 GNUNET_SCHEDULER_add_now(&count_new_peers, test_find_peer->find_peer_context);
1147 GNUNET_free(test_find_peer);
1151 * A find peer request has been sent to the server, now we will schedule a task
1152 * to wait the appropriate time to allow the request to go out and back.
1154 * @param cls closure - a TestFindPeer struct
1155 * @param tc context the task is being called with
1158 handle_find_peer_sent (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1160 struct TestFindPeer *test_find_peer = cls;
1162 GNUNET_DHT_disconnect(test_find_peer->dht_handle);
1163 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_divide(find_peer_delay, 2), &decrement_find_peers, test_find_peer);
1168 send_find_peer_request (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1170 struct TestFindPeer *test_find_peer = cls;
1172 if (test_find_peer->find_peer_context->outstanding > max_outstanding_find_peers)
1174 GNUNET_SCHEDULER_add_delayed(find_peer_offset, &send_find_peer_request, test_find_peer);
1178 test_find_peer->find_peer_context->outstanding++;
1179 if (GNUNET_TIME_absolute_get_remaining(test_find_peer->find_peer_context->endtime).rel_value == 0)
1181 GNUNET_SCHEDULER_add_now(&decrement_find_peers, test_find_peer);
1185 test_find_peer->dht_handle = GNUNET_DHT_connect(test_find_peer->daemon->cfg, 1);
1186 GNUNET_assert(test_find_peer->dht_handle != NULL);
1187 GNUNET_DHT_find_peers (test_find_peer->dht_handle,
1188 &handle_find_peer_sent, test_find_peer);
1193 * Add a connection to the find_peer_context given. This may
1194 * be complete overkill, but allows us to choose the peers with
1195 * the least connections to initiate find peer requests from.
1197 static void add_new_connection(struct FindPeerContext *find_peer_context,
1198 const struct GNUNET_PeerIdentity *first,
1199 const struct GNUNET_PeerIdentity *second)
1201 struct PeerCount *first_count;
1202 struct PeerCount *second_count;
1204 if (GNUNET_CONTAINER_multihashmap_contains(find_peer_context->peer_hash, &first->hashPubKey))
1206 first_count = GNUNET_CONTAINER_multihashmap_get(find_peer_context->peer_hash, &first->hashPubKey);
1207 GNUNET_assert(first_count != NULL);
1208 first_count->count++;
1209 GNUNET_CONTAINER_heap_update_cost(find_peer_context->peer_min_heap, first_count->heap_node, first_count->count);
1213 first_count = GNUNET_malloc(sizeof(struct PeerCount));
1214 first_count->count = 1;
1215 memcpy(&first_count->peer_id, first, sizeof(struct GNUNET_PeerIdentity));
1216 first_count->heap_node = GNUNET_CONTAINER_heap_insert(find_peer_context->peer_min_heap, first_count, first_count->count);
1217 GNUNET_CONTAINER_multihashmap_put(find_peer_context->peer_hash, &first->hashPubKey, first_count, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
1220 if (GNUNET_CONTAINER_multihashmap_contains(find_peer_context->peer_hash, &second->hashPubKey))
1222 second_count = GNUNET_CONTAINER_multihashmap_get(find_peer_context->peer_hash, &second->hashPubKey);
1223 GNUNET_assert(second_count != NULL);
1224 second_count->count++;
1225 GNUNET_CONTAINER_heap_update_cost(find_peer_context->peer_min_heap, second_count->heap_node, second_count->count);
1229 second_count = GNUNET_malloc(sizeof(struct PeerCount));
1230 second_count->count = 1;
1231 memcpy(&second_count->peer_id, second, sizeof(struct GNUNET_PeerIdentity));
1232 second_count->heap_node = GNUNET_CONTAINER_heap_insert(find_peer_context->peer_min_heap, second_count, second_count->count);
1233 GNUNET_CONTAINER_multihashmap_put(find_peer_context->peer_hash, &second->hashPubKey, second_count, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
1239 * Iterate over min heap of connections per peer. For any
1240 * peer that has 0 connections, attempt to connect them to
1243 * @param cls closure a struct FindPeerContext
1244 * @param node internal node of the heap
1245 * @param element value stored, a struct PeerCount
1246 * @param cost cost associated with the node
1247 * @return GNUNET_YES if we should continue to iterate,
1250 static int iterate_min_heap_peers (void *cls,
1251 struct GNUNET_CONTAINER_HeapNode *node,
1253 GNUNET_CONTAINER_HeapCostType cost)
1255 struct FindPeerContext *find_peer_context = cls;
1256 struct PeerCount *peer_count = element;
1257 struct GNUNET_TESTING_Daemon *d1;
1258 struct GNUNET_TESTING_Daemon *d2;
1259 struct GNUNET_TIME_Relative timeout;
1262 d1 = GNUNET_TESTING_daemon_get_by_id (pg, &peer_count->peer_id);
1263 GNUNET_assert(d1 != NULL);
1265 while ((d2 == d1) || (GNUNET_YES != GNUNET_TESTING_daemon_running(d2)))
1267 d2 = GNUNET_TESTING_daemon_get(pg, GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers));
1268 GNUNET_assert(d2 != NULL);
1271 /** Just try to connect the peers, don't worry about callbacks, etc. **/
1272 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);
1273 timeout = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, DEFAULT_CONNECT_TIMEOUT);
1274 if (GNUNET_TIME_relative_to_absolute(timeout).abs_value > find_peer_context->endtime.abs_value)
1276 timeout = GNUNET_TIME_absolute_get_remaining(find_peer_context->endtime);
1278 GNUNET_TESTING_daemons_connect(d1, d2, timeout, DEFAULT_RECONNECT_ATTEMPTS, NULL, NULL);
1280 if (GNUNET_TIME_absolute_get_remaining(find_peer_context->endtime).rel_value > 0)
1287 * Forward declaration.
1290 schedule_churn_find_peer_requests (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc);
1293 * Callback for iterating over all the peer connections of a peer group.
1294 * Used after we have churned on some peers to find which ones have zero
1295 * connections so we can make them issue find peer requests.
1298 count_peers_churn_cb (void *cls,
1299 const struct GNUNET_PeerIdentity *first,
1300 const struct GNUNET_PeerIdentity *second,
1303 struct FindPeerContext *find_peer_context = cls;
1304 struct TopologyIteratorContext *topo_ctx;
1305 struct PeerCount *peer_count;
1307 if ((first != NULL) && (second != NULL))
1309 add_new_connection(find_peer_context, first, second);
1310 find_peer_context->current_peers++;
1314 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Peer count finished (%u connections)\n",
1315 find_peer_context->current_peers);
1316 peer_count = GNUNET_CONTAINER_heap_peek(find_peer_context->peer_min_heap);
1317 GNUNET_assert(peer_count != NULL);
1318 /* 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. */
1319 /* NO they won't, because we have disabled peerinfo writing to disk (remember?) so we WILL have to give them new connections */
1320 /* Best course of action: have DHT automatically try to add peers from peerinfo on startup. This way IF peerinfo writes to file
1321 * then some peers will end up connected.
1323 * Also, find any peers that have zero connections here and set up a task to choose at random another peer in the network to
1324 * 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
1325 * until they get a peer.
1327 /* However, they won't automatically be connected to any of their previous peers... How can we handle that? */
1328 /* So now we have choices: do we want them to come back with all their connections? Probably not, but it solves this mess. */
1330 /* Second problem, which is still a problem, is that a FIND_PEER request won't work when a peer has no connections */
1333 * Okay, so here's how this *should* work now.
1335 * 1. We check the min heap for any peers that have 0 connections.
1336 * a. If any are found, we iterate over the heap and just randomly
1337 * choose another peer and ask testing to please connect the two.
1338 * This takes care of the case that a peer just randomly joins the
1339 * network. However, if there are strict topology restrictions
1340 * (imagine a ring) choosing randomly most likely won't help.
1341 * We make sure the connection attempt doesn't take longer than
1342 * the total timeout, but don't care too much about the result.
1343 * b. After that, we still schedule the find peer requests (concurrently
1344 * with the connect attempts most likely). This handles the case
1345 * that the DHT iterates over peerinfo and just needs to try to send
1346 * a message to get connected. This should handle the case that the
1347 * topology is very strict.
1349 * 2. If all peers have > 0 connections, we still send find peer requests
1350 * as long as possible (until timeout is reached) to help out those
1351 * peers that were newly churned and need more connections. This is because
1352 * once all new peers have established a single connection, they won't be
1355 * 3. Once we reach the timeout, we can do no more. We must schedule the
1356 * next iteration of get requests regardless of connections that peers
1357 * may or may not have.
1359 * Caveat: it would be nice to get peers to take data offline with them and
1360 * come back with it (or not) based on the testing framework. The
1361 * same goes for remembering previous connections, but putting either
1362 * into the general testing churn options seems like overkill because
1363 * these are very specialized cases.
1365 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);
1366 if ((peer_count->count == 0) && (GNUNET_TIME_absolute_get_remaining(find_peer_context->endtime).rel_value > 0))
1368 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Found peer with no connections, will choose some peer(s) at random to connect to!\n");
1369 GNUNET_CONTAINER_heap_iterate (find_peer_context->peer_min_heap, &iterate_min_heap_peers, find_peer_context);
1370 GNUNET_SCHEDULER_add_now(&schedule_churn_find_peer_requests, find_peer_context);
1372 else if ((GNUNET_TIME_absolute_get_remaining(find_peer_context->endtime).rel_value > 0) && (find_peer_context->last_sent != 0))
1374 GNUNET_SCHEDULER_add_now(&schedule_churn_find_peer_requests, find_peer_context);
1378 GNUNET_CONTAINER_multihashmap_iterate(find_peer_context->peer_hash, &remove_peer_count, find_peer_context);
1379 GNUNET_CONTAINER_multihashmap_destroy(find_peer_context->peer_hash);
1380 GNUNET_CONTAINER_heap_destroy(find_peer_context->peer_min_heap);
1381 GNUNET_free(find_peer_context);
1382 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Churn round %u of %llu finished, scheduling next GET round.\n", current_churn_round, churn_rounds);
1383 if (dhtlog_handle != NULL)
1385 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
1386 topo_ctx->cont = &do_get;
1387 topo_ctx->cls = all_gets;
1388 topo_ctx->timeout = DEFAULT_GET_TIMEOUT;
1389 topo_ctx->peers_seen = GNUNET_CONTAINER_multihashmap_create(num_peers);
1390 die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_add(GNUNET_TIME_relative_add(DEFAULT_GET_TIMEOUT, all_get_timeout), DEFAULT_TOPOLOGY_CAPTURE_TIMEOUT),
1391 &end_badly, "from do gets (count_peers_churn_cb)");
1392 GNUNET_SCHEDULER_add_now(&capture_current_topology, topo_ctx);
1396 die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_add(GNUNET_TIME_relative_add(DEFAULT_GET_TIMEOUT, all_get_timeout), DEFAULT_TOPOLOGY_CAPTURE_TIMEOUT),
1397 &end_badly, "from do gets (count_peers_churn_cb)");
1398 GNUNET_SCHEDULER_add_now(&do_get, all_gets);
1405 * Set up a single find peer request for each peer in the topology. Do this
1406 * until the settle time is over, limited by the number of outstanding requests
1407 * and the time allowed for each one!
1410 schedule_churn_find_peer_requests (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1412 struct FindPeerContext *find_peer_ctx = cls;
1413 struct TestFindPeer *test_find_peer;
1414 struct PeerCount *peer_count;
1417 if (find_peer_ctx->previous_peers == 0) /* First time, go slowly */
1418 find_peer_ctx->total = 1;
1419 else if (find_peer_ctx->current_peers - find_peer_ctx->previous_peers < MIN_FIND_PEER_CUTOFF)
1420 find_peer_ctx->total = find_peer_ctx->total / 2;
1421 else if (find_peer_ctx->current_peers - find_peer_ctx->previous_peers > MAX_FIND_PEER_CUTOFF) /* Found LOTS of peers, still go slowly */
1422 find_peer_ctx->total = find_peer_ctx->last_sent - (find_peer_ctx->last_sent / 4);
1424 find_peer_ctx->total = find_peer_ctx->last_sent * 4;
1426 if (find_peer_ctx->total > max_outstanding_find_peers)
1427 find_peer_ctx->total = max_outstanding_find_peers;
1429 find_peer_ctx->last_sent = find_peer_ctx->total;
1430 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Sending %u find peer messages (after churn)\n", find_peer_ctx->total);
1432 if (find_peer_ctx->total > 0)
1433 find_peer_offset = GNUNET_TIME_relative_divide(find_peer_delay, find_peer_ctx->total);
1436 find_peer_ctx->previous_peers = find_peer_ctx->current_peers;
1437 find_peer_ctx->current_peers = 0;
1438 GNUNET_TESTING_get_topology (pg, &count_peers_churn_cb, find_peer_ctx);
1442 for (i = 0; i < find_peer_ctx->total; i++)
1444 test_find_peer = GNUNET_malloc(sizeof(struct TestFindPeer));
1445 /* If we have sent requests, choose peers with a low number of connections to send requests from */
1446 peer_count = GNUNET_CONTAINER_heap_remove_root(find_peer_ctx->peer_min_heap);
1447 GNUNET_assert(peer_count != NULL);
1448 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Sending find peer request from peer with %u connections\n", peer_count->count);
1449 GNUNET_CONTAINER_multihashmap_remove(find_peer_ctx->peer_hash, &peer_count->peer_id.hashPubKey, peer_count);
1450 test_find_peer->daemon = GNUNET_TESTING_daemon_get_by_id(pg, &peer_count->peer_id);
1451 GNUNET_assert(test_find_peer->daemon != NULL);
1452 test_find_peer->find_peer_context = find_peer_ctx;
1453 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_multiply(find_peer_offset, i), &send_find_peer_request, test_find_peer);
1456 if ((find_peer_ctx->peer_hash == NULL) && (find_peer_ctx->peer_min_heap == NULL))
1458 find_peer_ctx->peer_hash = GNUNET_CONTAINER_multihashmap_create(num_peers);
1459 find_peer_ctx->peer_min_heap = GNUNET_CONTAINER_heap_create(GNUNET_CONTAINER_HEAP_ORDER_MIN);
1463 GNUNET_CONTAINER_multihashmap_iterate(find_peer_ctx->peer_hash, &remove_peer_count, find_peer_ctx);
1464 GNUNET_CONTAINER_multihashmap_destroy(find_peer_ctx->peer_hash);
1465 find_peer_ctx->peer_hash = GNUNET_CONTAINER_multihashmap_create(num_peers);
1468 GNUNET_assert(0 == GNUNET_CONTAINER_multihashmap_size(find_peer_ctx->peer_hash));
1469 GNUNET_assert(0 == GNUNET_CONTAINER_heap_get_size(find_peer_ctx->peer_min_heap));
1472 static void schedule_churn_get_topology (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1474 struct FindPeerContext *find_peer_context = cls;
1475 GNUNET_TESTING_get_topology (pg, &count_peers_churn_cb, find_peer_context);
1479 * Called when churning of the topology has finished.
1481 * @param cls closure unused
1482 * @param emsg NULL on success, or a printable error on failure
1484 static void churn_complete (void *cls, const char *emsg)
1486 struct FindPeerContext *find_peer_context = cls;
1487 struct PeerCount *peer_count;
1489 struct GNUNET_TESTING_Daemon *temp_daemon;
1490 struct TopologyIteratorContext *topo_ctx;
1491 struct GNUNET_TIME_Relative calc_timeout;
1496 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Ending test, churning of peers failed with error `%s'", emsg);
1497 GNUNET_SCHEDULER_add_now(&end_badly, (void *)emsg);
1502 * If we switched any peers on, we have to somehow force connect the new peer to
1503 * SOME bootstrap peer in the network. First schedule a task to find all peers
1504 * with no connections, then choose a random peer for each and connect them.
1506 if (find_peer_context != NULL)
1508 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "We have churned on some peers, so we must schedule find peer requests for them!\n");
1510 for (i = 0; i < num_peers; i ++)
1512 temp_daemon = GNUNET_TESTING_daemon_get(pg, i);
1513 if (GNUNET_YES == GNUNET_TESTING_daemon_running(temp_daemon))
1515 peer_count = GNUNET_malloc (sizeof(struct PeerCount));
1516 memcpy(&peer_count->peer_id, &temp_daemon->id, sizeof(struct GNUNET_PeerIdentity));
1517 GNUNET_assert(peer_count->count == 0);
1518 peer_count->heap_node = GNUNET_CONTAINER_heap_insert(find_peer_context->peer_min_heap, peer_count, peer_count->count);
1519 GNUNET_CONTAINER_multihashmap_put(find_peer_context->peer_hash, &temp_daemon->id.hashPubKey, peer_count, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
1523 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));
1524 GNUNET_SCHEDULER_add_delayed(DEFAULT_PEER_DISCONNECT_TIMEOUT, &schedule_churn_get_topology, find_peer_context);
1525 //GNUNET_TESTING_get_topology (pg, &count_peers_churn_cb, find_peer_context);
1529 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");
1530 if (dhtlog_handle != NULL)
1532 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
1533 topo_ctx->cont = &do_get;
1534 topo_ctx->cls = all_gets;
1535 topo_ctx->timeout = DEFAULT_GET_TIMEOUT;
1536 topo_ctx->peers_seen = GNUNET_CONTAINER_multihashmap_create(num_peers);
1537 calc_timeout = GNUNET_TIME_relative_add(DEFAULT_GET_TIMEOUT, all_get_timeout);
1538 calc_timeout = GNUNET_TIME_relative_add(calc_timeout, DEFAULT_TOPOLOGY_CAPTURE_TIMEOUT);
1539 calc_timeout = GNUNET_TIME_relative_add(calc_timeout, DEFAULT_PEER_DISCONNECT_TIMEOUT);
1540 die_task = GNUNET_SCHEDULER_add_delayed (calc_timeout,
1541 &end_badly, "from do gets (churn_complete)");
1542 GNUNET_SCHEDULER_add_delayed(DEFAULT_PEER_DISCONNECT_TIMEOUT, &capture_current_topology, topo_ctx);
1546 calc_timeout = GNUNET_TIME_relative_add(DEFAULT_GET_TIMEOUT, all_get_timeout);
1547 calc_timeout = GNUNET_TIME_relative_add(calc_timeout, DEFAULT_PEER_DISCONNECT_TIMEOUT);
1548 die_task = GNUNET_SCHEDULER_add_delayed (calc_timeout,
1549 &end_badly, "from do gets (churn_complete)");
1550 if (dhtlog_handle != NULL)
1551 dhtlog_handle->insert_round(DHT_ROUND_GET, rounds_finished);
1552 GNUNET_SCHEDULER_add_delayed(DEFAULT_PEER_DISCONNECT_TIMEOUT, &do_get, all_gets);
1558 * Decide how many peers to turn on or off in this round, make sure the
1559 * numbers actually make sense, then do so. This function sets in motion
1560 * churn, find peer requests for newly joined peers, and issuing get
1561 * requests once the new peers have done so.
1563 * @param cls closure (unused)
1564 * @param tc task context (unused)
1567 churn_peers (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1569 unsigned int count_running;
1570 unsigned int churn_up;
1571 unsigned int churn_down;
1572 struct GNUNET_TIME_Relative timeout;
1573 struct FindPeerContext *find_peer_context;
1575 churn_up = churn_down = 0;
1576 count_running = GNUNET_TESTING_daemons_running(pg);
1577 if (count_running > churn_array[current_churn_round])
1578 churn_down = count_running - churn_array[current_churn_round];
1579 else if (count_running < churn_array[current_churn_round])
1580 churn_up = churn_array[current_churn_round] - count_running;
1582 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Not churning any peers, topology unchanged.\n");
1584 if (churn_up > num_peers - count_running)
1586 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Churn file specified %u peers (up); only have %u!", churn_array[current_churn_round], num_peers);
1587 churn_up = num_peers - count_running;
1589 else if (churn_down > count_running)
1591 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Churn file specified %u peers (down); only have %u!", churn_array[current_churn_round], count_running);
1592 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "This will leave NO peers running (mistake in churn configuration?)!");
1593 churn_down = count_running;
1595 //timeout = GNUNET_TIME_relative_multiply(seconds_per_peer_start, churn_up > 0 ? churn_up : churn_down);
1596 //timeout = GNUNET_TIME_relative_multiply (seconds_per_peer_start, churn_up > 0 ? churn_up : churn_down);
1597 timeout = GNUNET_TIME_relative_multiply(DEFAULT_TIMEOUT, 2); /* FIXME: Lack of intelligent choice here */
1598 find_peer_context = NULL;
1599 if (churn_up > 0) /* Only need to do find peer requests if we turned new peers on */
1601 find_peer_context = GNUNET_malloc(sizeof(struct FindPeerContext));
1602 find_peer_context->count_peers_cb = &count_peers_churn_cb;
1603 find_peer_context->previous_peers = 0;
1604 find_peer_context->current_peers = 0;
1605 find_peer_context->endtime = GNUNET_TIME_relative_to_absolute(timeout);
1606 find_peer_context->peer_hash = GNUNET_CONTAINER_multihashmap_create(num_peers);
1607 find_peer_context->peer_min_heap = GNUNET_CONTAINER_heap_create(GNUNET_CONTAINER_HEAP_ORDER_MIN);
1609 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "churn_peers: want %u total, %u running, starting %u, stopping %u\n",
1610 churn_array[current_churn_round], count_running, churn_up, churn_down);
1611 GNUNET_TESTING_daemons_churn (pg, churn_down, churn_up, timeout, &churn_complete, find_peer_context);
1612 current_churn_round++;
1616 * Task to release DHT handle associated with GET request.
1619 get_stop_finished (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1621 struct TestGetContext *test_get = cls;
1622 struct TopologyIteratorContext *topo_ctx;
1624 /* The dht_handle may be null if this get was scheduled from a down peer */
1625 if (test_get->dht_handle != NULL)
1627 GNUNET_DHT_disconnect(test_get->dht_handle);
1628 outstanding_gets--; /* GET is really finished */
1629 test_get->dht_handle = NULL;
1632 /* Reset the uid (which item to search for) and the daemon (which peer to search from) for later get request iterations */
1633 if (get_from_same == GNUNET_NO)
1635 test_get->uid = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_puts);
1636 test_get->daemon = GNUNET_TESTING_daemon_get(pg, GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers));
1640 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "%d gets succeeded, %d gets failed!\n", gets_completed, gets_failed);
1642 update_meter(get_meter);
1643 if ((gets_completed + gets_failed == num_gets) && (outstanding_gets == 0))
1645 fprintf(stderr, "Canceling die task (get_stop_finished) %llu gets completed, %llu gets failed\n", gets_completed, gets_failed);
1646 GNUNET_SCHEDULER_cancel(die_task);
1647 reset_meter(put_meter);
1648 reset_meter(get_meter);
1651 * 1) Testing is completely finished, call the topology iteration dealy and die
1652 * 2) Testing is not finished, churn the network and do gets again (current_churn_round < churn_rounds)
1653 * 3) Testing is not finished, reschedule all the PUTS *and* GETS again (num_rounds > 1)
1655 if (rounds_finished == total_rounds - 1) /* Everything is finished, end testing */
1657 if (dhtlog_handle != NULL)
1659 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
1660 topo_ctx->cont = &log_dht_statistics;
1661 topo_ctx->peers_seen = GNUNET_CONTAINER_multihashmap_create(num_peers);
1662 GNUNET_SCHEDULER_add_now(&capture_current_topology, topo_ctx);
1665 GNUNET_SCHEDULER_add_now (&finish_testing, NULL);
1667 else if (current_churn_round < churns_per_round * (rounds_finished + 1)) /* Do next round of churn */
1669 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);
1673 if (dhtlog_handle != NULL)
1674 dhtlog_handle->insert_round(DHT_ROUND_CHURN, rounds_finished);
1676 GNUNET_SCHEDULER_add_now(&churn_peers, NULL);
1678 else if (rounds_finished < total_rounds - 1) /* Start a new complete round */
1683 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Round %u of %llu finished, scheduling next round.\n", rounds_finished, total_rounds);
1685 /** We reset the peer daemon for puts and gets on each disconnect, so all we need to do is start another round! */
1686 if (GNUNET_YES == in_dht_replication) /* Replication done in DHT, don't redo puts! */
1688 if (dhtlog_handle != NULL)
1689 dhtlog_handle->insert_round(DHT_ROUND_GET, rounds_finished);
1691 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),
1692 &end_badly, "from do gets (next round)");
1693 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, round_delay), &do_get, all_gets);
1697 if (dhtlog_handle != NULL)
1698 dhtlog_handle->insert_round(DHT_ROUND_NORMAL, rounds_finished);
1699 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)),
1700 &end_badly, "from do puts");
1701 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, round_delay), &do_put, all_puts);
1708 * Task to release get handle.
1711 get_stop_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1713 struct TestGetContext *test_get = cls;
1715 if (tc->reason == GNUNET_SCHEDULER_REASON_TIMEOUT)
1717 GNUNET_assert(test_get->get_handle != NULL);
1718 GNUNET_DHT_get_stop(test_get->get_handle);
1719 test_get->get_handle = NULL;
1720 test_get->disconnect_task = GNUNET_SCHEDULER_NO_TASK;
1721 GNUNET_SCHEDULER_add_now (&get_stop_finished, test_get);
1725 * Iterator called if the GET request initiated returns a response.
1727 * @param cls closure
1728 * @param exp when will this value expire
1729 * @param key key of the result
1730 * @param get_path NULL-terminated array of pointers
1731 * to the peers on reverse GET path (or NULL if not recorded)
1732 * @param put_path NULL-terminated array of pointers
1733 * to the peers on the PUT path (or NULL if not recorded)
1734 * @param type type of the result
1735 * @param size number of bytes in data
1736 * @param data pointer to the result data
1739 get_result_iterator (void *cls,
1740 struct GNUNET_TIME_Absolute exp,
1741 const GNUNET_HashCode * key,
1742 const struct GNUNET_PeerIdentity * const *get_path,
1743 const struct GNUNET_PeerIdentity * const *put_path,
1744 enum GNUNET_BLOCK_Type type,
1748 struct TestGetContext *test_get = cls;
1750 if (test_get->succeeded == GNUNET_YES)
1751 return; /* Get has already been successful, probably ending now */
1753 if (0 != memcmp(&known_keys[test_get->uid], key, sizeof (GNUNET_HashCode))) /* || (0 != memcmp(original_data, data, sizeof(original_data))))*/
1756 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Key or data is not the same as was inserted!\n");
1761 test_get->succeeded = GNUNET_YES;
1764 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Received correct GET response!\n");
1766 GNUNET_SCHEDULER_cancel(test_get->disconnect_task);
1767 GNUNET_SCHEDULER_add_continuation(&get_stop_task, test_get, GNUNET_SCHEDULER_REASON_PREREQ_DONE);
1773 * Set up some data, and call API PUT function
1776 do_get (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1778 struct TestGetContext *test_get = cls;
1782 GNUNET_SCHEDULER_cancel(die_task);
1783 GNUNET_SCHEDULER_add_now(&finish_testing, NULL);
1786 if (test_get == NULL)
1787 return; /* End of the list */
1789 /* Set this here in case we are re-running gets */
1790 test_get->succeeded = GNUNET_NO;
1792 if (GNUNET_YES != GNUNET_TESTING_daemon_running(test_get->daemon)) /* If the peer has been churned off, don't try issuing request from it! */
1794 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Peer we should issue get request from is down, skipping.\n");
1796 GNUNET_SCHEDULER_add_now (&get_stop_finished, test_get);
1797 GNUNET_SCHEDULER_add_now (&do_get, test_get->next);
1801 /* Check if more gets are outstanding than should be */
1802 if (outstanding_gets > max_outstanding_gets)
1804 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MILLISECONDS, 200), &do_get, test_get);
1808 /* Connect to the first peer's DHT */
1809 test_get->dht_handle = GNUNET_DHT_connect(test_get->daemon->cfg, 10);
1810 GNUNET_assert(test_get->dht_handle != NULL);
1813 /* Insert the data at the first peer */
1814 test_get->get_handle = GNUNET_DHT_get_start(test_get->dht_handle,
1816 GNUNET_BLOCK_TYPE_TEST,
1817 &known_keys[test_get->uid],
1822 &get_result_iterator,
1826 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Starting get for uid %u from peer %s\n",
1828 test_get->daemon->shortname);
1830 test_get->disconnect_task = GNUNET_SCHEDULER_add_delayed(get_timeout, &get_stop_task, test_get);
1832 /* Schedule the next request in the linked list of get requests */
1833 GNUNET_SCHEDULER_add_now (&do_get, test_get->next);
1837 * Called when the PUT request has been transmitted to the DHT service.
1838 * Schedule the GET request for some time in the future.
1841 put_finished (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1843 struct TestPutContext *test_put = cls;
1844 struct TopologyIteratorContext *topo_ctx;
1848 if (tc->reason == GNUNET_SCHEDULER_REASON_TIMEOUT)
1849 fprintf(stderr, "PUT Request failed!\n");
1851 /* Reset the daemon (which peer to insert at) for later put request iterations */
1852 if (replicate_same == GNUNET_NO)
1853 test_put->daemon = GNUNET_TESTING_daemon_get(pg, GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers));
1855 GNUNET_SCHEDULER_cancel(test_put->disconnect_task);
1856 test_put->disconnect_task = GNUNET_SCHEDULER_add_now(&put_disconnect_task, test_put);
1857 if (GNUNET_YES == update_meter(put_meter))
1859 GNUNET_assert(outstanding_puts == 0);
1860 GNUNET_SCHEDULER_cancel (die_task);
1861 if (dhtlog_handle != NULL)
1863 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
1864 topo_ctx->cont = &do_get;
1865 topo_ctx->cls = all_gets;
1866 topo_ctx->timeout = DEFAULT_GET_TIMEOUT;
1867 topo_ctx->peers_seen = GNUNET_CONTAINER_multihashmap_create(num_peers);
1868 die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_add(GNUNET_TIME_relative_add(DEFAULT_GET_TIMEOUT, all_get_timeout), DEFAULT_TOPOLOGY_CAPTURE_TIMEOUT),
1869 &end_badly, "from do gets (put finished)");
1870 GNUNET_SCHEDULER_add_now(&capture_current_topology, topo_ctx);
1874 fprintf(stderr, "Scheduling die task (put finished)\n");
1875 die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_add(DEFAULT_GET_TIMEOUT, all_get_timeout),
1876 &end_badly, "from do gets (put finished)");
1877 GNUNET_SCHEDULER_add_delayed(DEFAULT_GET_TIMEOUT, &do_get, all_gets);
1884 * Set up some data, and call API PUT function
1887 do_put (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1889 struct TestPutContext *test_put = cls;
1890 char data[test_data_size]; /* Made up data to store */
1894 if (test_put == NULL)
1895 return; /* End of list */
1897 if (GNUNET_YES != GNUNET_TESTING_daemon_running(test_put->daemon)) /* If the peer has been churned off, don't try issuing request from it! */
1899 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Peer we should issue put request at is down, skipping.\n");
1900 update_meter(put_meter);
1901 GNUNET_SCHEDULER_add_now (&do_put, test_put->next);
1905 for (i = 0; i < sizeof(data); i++)
1907 memset(&data[i], GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, UINT32_MAX), 1);
1910 if (outstanding_puts > max_outstanding_puts)
1912 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MILLISECONDS, 200), &do_put, test_put);
1917 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Starting put for uid %u from peer %s\n",
1919 test_put->daemon->shortname);
1921 test_put->dht_handle = GNUNET_DHT_connect(test_put->daemon->cfg, 10);
1923 GNUNET_assert(test_put->dht_handle != NULL);
1925 GNUNET_DHT_put(test_put->dht_handle,
1926 &known_keys[test_put->uid],
1929 GNUNET_BLOCK_TYPE_TEST,
1931 GNUNET_TIME_UNIT_FOREVER_ABS,
1933 &put_finished, test_put);
1934 test_put->disconnect_task = GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_get_forever(), &put_disconnect_task, test_put);
1935 rand = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, 2);
1936 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, rand), &do_put, test_put->next);
1940 schedule_find_peer_requests (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc);
1943 setup_malicious_peers (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc);
1946 * Given a number of total peers and a bucket size, estimate the number of
1947 * connections in a perfect kademlia topology.
1949 static unsigned int connection_estimate(unsigned int peer_count, unsigned int bucket_size)
1952 unsigned int filled;
1956 while (i >= bucket_size)
1961 filled++; /* Add one filled bucket to account for one "half full" and some miscellaneous */
1962 return filled * bucket_size * peer_count;
1968 * Callback for iterating over all the peer connections of a peer group.
1971 count_peers_cb (void *cls,
1972 const struct GNUNET_PeerIdentity *first,
1973 const struct GNUNET_PeerIdentity *second,
1976 struct FindPeerContext *find_peer_context = cls;
1977 if ((first != NULL) && (second != NULL))
1979 add_new_connection(find_peer_context, first, second);
1980 find_peer_context->current_peers++;
1984 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Peer count finished (%u connections), %u new peers, connection estimate %u (target %u)\n",
1985 find_peer_context->current_peers,
1986 find_peer_context->current_peers - find_peer_context->previous_peers,
1987 connection_estimate(num_peers, DEFAULT_BUCKET_SIZE),
1988 target_total_connections);
1990 if ((find_peer_context->last_sent < 8) ||
1991 ((find_peer_context->current_peers - find_peer_context->previous_peers > FIND_PEER_THRESHOLD) &&
1992 (find_peer_context->current_peers < 2 * connection_estimate(num_peers, DEFAULT_BUCKET_SIZE)) &&
1993 (GNUNET_TIME_absolute_get_remaining(find_peer_context->endtime).rel_value > 0) &&
1994 (find_peer_context->current_peers < target_total_connections)))
1996 GNUNET_SCHEDULER_add_now(&schedule_find_peer_requests, find_peer_context);
2000 GNUNET_CONTAINER_multihashmap_iterate(find_peer_context->peer_hash, &remove_peer_count, find_peer_context);
2001 GNUNET_CONTAINER_multihashmap_destroy(find_peer_context->peer_hash);
2002 GNUNET_CONTAINER_heap_destroy(find_peer_context->peer_min_heap);
2003 GNUNET_free(find_peer_context);
2004 fprintf(stderr, "Not sending any more find peer requests.\n");
2006 if (GNUNET_YES == malicious_after_settle)
2007 GNUNET_SCHEDULER_add_now(&setup_malicious_peers, NULL);
2014 * Set up a single find peer request for each peer in the topology. Do this
2015 * until the settle time is over, limited by the number of outstanding requests
2016 * and the time allowed for each one!
2019 schedule_find_peer_requests (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
2021 struct FindPeerContext *find_peer_ctx = cls;
2022 struct TestFindPeer *test_find_peer;
2023 struct PeerCount *peer_count;
2027 if (find_peer_ctx->previous_peers == 0) /* First time, go slowly */
2028 find_peer_ctx->total = 1;
2029 else if (find_peer_ctx->current_peers - find_peer_ctx->previous_peers > MAX_FIND_PEER_CUTOFF) /* Found LOTS of peers, still go slowly */
2030 find_peer_ctx->total = find_peer_ctx->last_sent - (find_peer_ctx->last_sent / 8);
2032 find_peer_ctx->total = find_peer_ctx->last_sent * 2;
2034 if (find_peer_ctx->total > max_outstanding_find_peers)
2035 find_peer_ctx->total = max_outstanding_find_peers;
2037 if (find_peer_ctx->total > num_peers) /* Don't try to send more messages than we have peers! */
2038 find_peer_ctx->total = num_peers;
2040 find_peer_ctx->last_sent = find_peer_ctx->total;
2041 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Sending %u find peer messages (goal at least %u connections)\n", find_peer_ctx->total, target_total_connections);
2043 find_peer_offset = GNUNET_TIME_relative_divide(find_peer_delay, find_peer_ctx->total);
2044 for (i = 0; i < find_peer_ctx->total; i++)
2046 test_find_peer = GNUNET_malloc(sizeof(struct TestFindPeer));
2047 if (find_peer_ctx->previous_peers == 0) /* If we haven't sent any requests yet, choose random peers */
2050 * Attempt to spread find peer requests across even sections of the peer address
2051 * space. Choose basically 1 peer in every num_peers / max_outstanding_requests
2052 * each time, then offset it by a randomish value.
2054 * For instance, if num_peers is 100 and max_outstanding is 10, first chosen peer
2055 * will be between 0 - 10, second between 10 - 20, etc.
2057 random = (num_peers / find_peer_ctx->total) * i;
2058 random = random + GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, (num_peers / find_peer_ctx->total));
2059 if (random >= num_peers)
2061 random = random - num_peers;
2064 random = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers);
2066 test_find_peer->daemon = GNUNET_TESTING_daemon_get(pg, random);
2068 else /* If we have sent requests, choose peers with a low number of connections to send requests from */
2070 peer_count = GNUNET_CONTAINER_heap_remove_root(find_peer_ctx->peer_min_heap);
2071 GNUNET_assert(GNUNET_YES == GNUNET_CONTAINER_multihashmap_remove(find_peer_ctx->peer_hash, &peer_count->peer_id.hashPubKey, peer_count));
2072 test_find_peer->daemon = GNUNET_TESTING_daemon_get_by_id(pg, &peer_count->peer_id);
2073 GNUNET_assert(test_find_peer->daemon != NULL);
2076 test_find_peer->find_peer_context = find_peer_ctx;
2077 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_multiply(find_peer_offset, i), &send_find_peer_request, test_find_peer);
2080 if ((find_peer_ctx->peer_hash == NULL) && (find_peer_ctx->peer_min_heap == NULL))
2082 find_peer_ctx->peer_hash = GNUNET_CONTAINER_multihashmap_create(num_peers);
2083 find_peer_ctx->peer_min_heap = GNUNET_CONTAINER_heap_create(GNUNET_CONTAINER_HEAP_ORDER_MIN);
2087 GNUNET_CONTAINER_multihashmap_iterate(find_peer_ctx->peer_hash, &remove_peer_count, find_peer_ctx);
2088 GNUNET_CONTAINER_multihashmap_destroy(find_peer_ctx->peer_hash);
2089 find_peer_ctx->peer_hash = GNUNET_CONTAINER_multihashmap_create(num_peers);
2092 GNUNET_assert(0 == GNUNET_CONTAINER_multihashmap_size(find_peer_ctx->peer_hash));
2093 GNUNET_assert(0 == GNUNET_CONTAINER_heap_get_size(find_peer_ctx->peer_min_heap));
2098 * Set up some all of the put and get operations we want
2099 * to do. Allocate data structure for each, add to list,
2100 * then call actual insert functions.
2103 setup_puts_and_gets (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
2106 uint32_t temp_daemon;
2107 struct TestPutContext *test_put;
2108 struct TestGetContext *test_get;
2110 int remember[num_puts][num_peers];
2111 memset(&remember, 0, sizeof(int) * num_puts * num_peers);
2113 known_keys = GNUNET_malloc(sizeof(GNUNET_HashCode) * num_puts);
2114 for (i = 0; i < num_puts; i++)
2116 test_put = GNUNET_malloc(sizeof(struct TestPutContext));
2118 GNUNET_CRYPTO_hash_create_random (GNUNET_CRYPTO_QUALITY_WEAK, &known_keys[i]);
2119 temp_daemon = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers);
2120 test_put->daemon = GNUNET_TESTING_daemon_get(pg, temp_daemon);
2121 test_put->next = all_puts;
2122 all_puts = test_put;
2125 for (i = 0; i < num_gets; i++)
2127 test_get = GNUNET_malloc(sizeof(struct TestGetContext));
2128 test_get->uid = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_puts);
2130 while (remember[test_get->uid][temp_daemon] == 1)
2131 temp_daemon = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers);
2132 remember[test_get->uid][temp_daemon] = 1;
2134 test_get->daemon = GNUNET_TESTING_daemon_get(pg, GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers));
2135 test_get->next = all_gets;
2136 all_gets = test_get;
2139 /*GNUNET_SCHEDULER_cancel (die_task);*/
2140 die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, num_puts * 2),
2141 &end_badly, "from do puts");
2142 GNUNET_SCHEDULER_add_now (&do_put, all_puts);
2147 * Set up some all of the put and get operations we want
2148 * to do. Allocate data structure for each, add to list,
2149 * then call actual insert functions.
2152 continue_puts_and_gets (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
2156 struct TopologyIteratorContext *topo_ctx;
2157 struct FindPeerContext *find_peer_context;
2158 if (dhtlog_handle != NULL)
2160 if (settle_time >= 180 * 2)
2161 max = (settle_time / 180) - 2;
2164 for (i = 1; i < max; i++)
2166 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
2167 topo_ctx->current_iteration = i;
2168 topo_ctx->total_iterations = max;
2169 topo_ctx->peers_seen = GNUNET_CONTAINER_multihashmap_create(num_peers);
2170 //fprintf(stderr, "scheduled topology iteration in %d minutes\n", i);
2171 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MINUTES, i * 3), &capture_current_topology, topo_ctx);
2173 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
2174 topo_ctx->cont = &setup_puts_and_gets;
2175 topo_ctx->peers_seen = GNUNET_CONTAINER_multihashmap_create(num_peers);
2176 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, (settle_time + 90)), &capture_current_topology, topo_ctx);
2179 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, (settle_time + 90)), &setup_puts_and_gets, NULL);
2181 if (dhtlog_handle != NULL)
2182 dhtlog_handle->insert_round(DHT_ROUND_NORMAL, rounds_finished);
2184 if (GNUNET_YES == do_find_peer)
2186 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Scheduling find peer requests during \"settle\" time.\n");
2187 find_peer_context = GNUNET_malloc(sizeof(struct FindPeerContext));
2188 find_peer_context->count_peers_cb = &count_peers_cb;
2189 find_peer_context->endtime = GNUNET_TIME_relative_to_absolute(GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, settle_time));
2190 GNUNET_SCHEDULER_add_now(&schedule_find_peer_requests, find_peer_context);
2194 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Assuming automatic DHT find peer requests.\n");
2199 * Task to release DHT handles
2202 malicious_disconnect_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
2204 struct MaliciousContext *ctx = cls;
2205 outstanding_malicious--;
2206 malicious_completed++;
2207 ctx->disconnect_task = GNUNET_SCHEDULER_NO_TASK;
2208 GNUNET_DHT_disconnect(ctx->dht_handle);
2209 ctx->dht_handle = NULL;
2212 if (malicious_completed == malicious_getters + malicious_putters + malicious_droppers)
2214 GNUNET_SCHEDULER_cancel(die_task);
2215 fprintf(stderr, "Finished setting all malicious peers up, calling continuation!\n");
2216 if (dhtlog_handle != NULL)
2217 GNUNET_SCHEDULER_add_now (&continue_puts_and_gets, NULL);
2219 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, settle_time),
2220 &continue_puts_and_gets, NULL);
2226 * Task to release DHT handles
2229 malicious_done_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
2231 struct MaliciousContext *ctx = cls;
2232 GNUNET_SCHEDULER_cancel(ctx->disconnect_task);
2233 GNUNET_SCHEDULER_add_now(&malicious_disconnect_task, ctx);
2237 * Set up some data, and call API PUT function
2240 set_malicious (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
2242 struct MaliciousContext *ctx = cls;
2244 if (outstanding_malicious > DEFAULT_MAX_OUTSTANDING_GETS)
2246 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MILLISECONDS, 100), &set_malicious, ctx);
2250 if (ctx->dht_handle == NULL)
2252 ctx->dht_handle = GNUNET_DHT_connect(ctx->daemon->cfg, 1);
2253 outstanding_malicious++;
2256 GNUNET_assert(ctx->dht_handle != NULL);
2260 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Setting peer %s malicious type %d\n",
2261 ctx->daemon->shortname, ctx->malicious_type);
2264 switch (ctx->malicious_type)
2266 case GNUNET_MESSAGE_TYPE_DHT_MALICIOUS_GET:
2267 GNUNET_DHT_set_malicious_getter(ctx->dht_handle, malicious_get_frequency);
2268 GNUNET_SCHEDULER_add_now (&malicious_done_task, ctx);
2270 case GNUNET_MESSAGE_TYPE_DHT_MALICIOUS_PUT:
2271 GNUNET_DHT_set_malicious_putter(ctx->dht_handle, malicious_put_frequency);
2272 GNUNET_SCHEDULER_add_now (&malicious_done_task, ctx);
2274 case GNUNET_MESSAGE_TYPE_DHT_MALICIOUS_DROP:
2275 GNUNET_DHT_set_malicious_dropper(ctx->dht_handle);
2276 GNUNET_SCHEDULER_add_now (&malicious_done_task, ctx);
2282 ctx->disconnect_task = GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_UNIT_FOREVER_REL,
2283 &malicious_disconnect_task, ctx);
2287 * Select randomly from set of known peers,
2288 * set the desired number of peers to the
2289 * proper malicious types.
2292 setup_malicious_peers (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
2294 struct MaliciousContext *ctx;
2296 uint32_t temp_daemon;
2298 for (i = 0; i < malicious_getters; i++)
2300 ctx = GNUNET_malloc(sizeof(struct MaliciousContext));
2301 temp_daemon = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers);
2302 ctx->daemon = GNUNET_TESTING_daemon_get(pg, temp_daemon);
2303 ctx->malicious_type = GNUNET_MESSAGE_TYPE_DHT_MALICIOUS_GET;
2304 GNUNET_SCHEDULER_add_now (&set_malicious, ctx);
2308 for (i = 0; i < malicious_putters; i++)
2310 ctx = GNUNET_malloc(sizeof(struct MaliciousContext));
2311 temp_daemon = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers);
2312 ctx->daemon = GNUNET_TESTING_daemon_get(pg, temp_daemon);
2313 ctx->malicious_type = GNUNET_MESSAGE_TYPE_DHT_MALICIOUS_PUT;
2314 GNUNET_SCHEDULER_add_now (&set_malicious, ctx);
2318 for (i = 0; i < malicious_droppers; i++)
2320 ctx = GNUNET_malloc(sizeof(struct MaliciousContext));
2321 temp_daemon = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers);
2322 ctx->daemon = GNUNET_TESTING_daemon_get(pg, temp_daemon);
2323 ctx->malicious_type = GNUNET_MESSAGE_TYPE_DHT_MALICIOUS_DROP;
2324 GNUNET_SCHEDULER_add_now (&set_malicious, ctx);
2328 * If we have any malicious peers to set up,
2329 * the malicious callback should call continue_gets_and_puts
2331 if (malicious_getters + malicious_putters + malicious_droppers > 0)
2333 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Giving malicious set tasks some time before starting testing!\n");
2334 die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, (malicious_getters + malicious_putters + malicious_droppers) * 2),
2335 &end_badly, "from set malicious");
2337 else /* Otherwise, continue testing */
2341 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Scheduling continue_puts_and_gets now!\n");
2342 GNUNET_SCHEDULER_add_now (&continue_puts_and_gets, NULL);
2348 * This function is called whenever a connection attempt is finished between two of
2349 * the started peers (started with GNUNET_TESTING_daemons_start). The total
2350 * number of times this function is called should equal the number returned
2351 * from the GNUNET_TESTING_connect_topology call.
2353 * The emsg variable is NULL on success (peers connected), and non-NULL on
2354 * failure (peers failed to connect).
2357 topology_callback (void *cls,
2358 const struct GNUNET_PeerIdentity *first,
2359 const struct GNUNET_PeerIdentity *second,
2361 const struct GNUNET_CONFIGURATION_Handle *first_cfg,
2362 const struct GNUNET_CONFIGURATION_Handle *second_cfg,
2363 struct GNUNET_TESTING_Daemon *first_daemon,
2364 struct GNUNET_TESTING_Daemon *second_daemon,
2367 struct TopologyIteratorContext *topo_ctx;
2370 total_connections++;
2372 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "connected peer %s to peer %s, distance %u\n",
2373 first_daemon->shortname,
2374 second_daemon->shortname,
2380 failed_connections++;
2381 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Failed to connect peer %s to peer %s with error :\n%s\n",
2382 first_daemon->shortname,
2383 second_daemon->shortname, emsg);
2385 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Failed to connect peer %s to peer %s with error :\n%s\n",
2386 first_daemon->shortname,
2387 second_daemon->shortname, emsg);
2391 GNUNET_assert(peer_connect_meter != NULL);
2392 if (GNUNET_YES == update_meter(peer_connect_meter))
2395 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2396 "Created %d total connections, which is our target number! Starting next phase of testing.\n",
2399 if (failed_connections > 0)
2400 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "While connecting, had %u failed connections.\n", failed_connections);
2401 if (dhtlog_handle != NULL)
2403 dhtlog_handle->update_connections (total_connections);
2404 dhtlog_handle->insert_topology(expected_connections);
2407 GNUNET_SCHEDULER_cancel (die_task);
2409 if ((dhtlog_handle != NULL) && (settle_time > 0))
2411 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
2412 if (GNUNET_YES == malicious_after_settle) /* Don't set malicious peers until after settle_time */
2413 topo_ctx->cont = &continue_puts_and_gets;
2414 else /* Set malicious peers now */
2415 topo_ctx->cont = &setup_malicious_peers;
2416 topo_ctx->peers_seen = GNUNET_CONTAINER_multihashmap_create(num_peers);
2417 topo_ctx->cls = NULL;
2419 GNUNET_SCHEDULER_add_now(&capture_current_topology, topo_ctx);
2423 GNUNET_SCHEDULER_add_now(&setup_malicious_peers, &continue_puts_and_gets);
2426 else if (total_connections + failed_connections == expected_connections)
2428 GNUNET_SCHEDULER_cancel (die_task);
2429 die_task = GNUNET_SCHEDULER_add_now (&end_badly, "from topology_callback (too many failed connections)");
2434 peers_started_callback (void *cls,
2435 const struct GNUNET_PeerIdentity *id,
2436 const struct GNUNET_CONFIGURATION_Handle *cfg,
2437 struct GNUNET_TESTING_Daemon *d, const char *emsg)
2441 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Failed to start daemon with error: `%s'\n",
2445 GNUNET_assert (id != NULL);
2448 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Started daemon %llu out of %llu\n",
2449 (num_peers - peers_left) + 1, num_peers);
2454 if (GNUNET_YES == update_meter(peer_start_meter))
2457 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2458 "All %d daemons started, now connecting peers!\n",
2461 GNUNET_SCHEDULER_cancel (die_task);
2463 expected_connections = UINT_MAX;
2464 if ((pg != NULL) && (peers_left == 0))
2466 expected_connections = GNUNET_TESTING_connect_topology (pg, connect_topology, connect_topology_option, connect_topology_option_modifier, NULL, NULL);
2468 peer_connect_meter = create_meter(expected_connections, "Peer connection ", GNUNET_YES);
2469 fprintf(stderr, "Have %d expected connections\n", expected_connections);
2472 if (expected_connections == GNUNET_SYSERR)
2474 die_task = GNUNET_SCHEDULER_add_now (&end_badly, "from connect topology (bad return)");
2477 die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, DEFAULT_CONNECT_TIMEOUT * expected_connections),
2478 &end_badly, "from connect topology (timeout)");
2487 peers_left = num_peers; /* Reset counter */
2488 if (GNUNET_TESTING_create_topology (pg, topology, blacklist_topology, blacklist_transports) != GNUNET_SYSERR)
2491 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2492 "Topology set up, now starting peers!\n");
2494 GNUNET_TESTING_daemons_continue_startup(pg);
2498 GNUNET_SCHEDULER_cancel (die_task);
2499 die_task = GNUNET_SCHEDULER_add_now (&end_badly, "from create topology (bad return)");
2501 GNUNET_free_non_null(blacklist_transports);
2502 GNUNET_SCHEDULER_cancel (die_task);
2503 die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(seconds_per_peer_start, num_peers),
2504 &end_badly, "from continue startup (timeout)");
2508 * Callback indicating that the hostkey was created for a peer.
2511 * @param id the peer identity
2512 * @param d the daemon handle (pretty useless at this point, remove?)
2513 * @param emsg non-null on failure
2516 hostkey_callback (void *cls,
2517 const struct GNUNET_PeerIdentity *id,
2518 struct GNUNET_TESTING_Daemon *d,
2523 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Hostkey callback received error: %s\n", emsg);
2527 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2528 "Hostkey (%d/%d) created for peer `%s'\n",
2529 num_peers - peers_left, num_peers, GNUNET_i2s(id));
2533 if (GNUNET_YES == update_meter(hostkey_meter))
2536 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2537 "All %d hostkeys created, now creating topology!\n",
2540 GNUNET_SCHEDULER_cancel (die_task);
2541 /* Set up task in case topology creation doesn't finish
2542 * within a reasonable amount of time */
2543 die_task = GNUNET_SCHEDULER_add_delayed (DEFAULT_TOPOLOGY_TIMEOUT,
2544 &end_badly, "from create_topology");
2545 GNUNET_SCHEDULER_add_now(&create_topology, NULL);
2554 const char *cfgfile, const struct GNUNET_CONFIGURATION_Handle *cfg)
2557 struct GNUNET_DHTLOG_TrialInfo trial_info;
2558 struct GNUNET_TESTING_Host *hosts;
2559 struct GNUNET_TESTING_Host *temphost;
2560 struct GNUNET_TESTING_Host *tempnext;
2562 char *connect_topology_str;
2563 char *blacklist_topology_str;
2564 char *connect_topology_option_str;
2565 char *connect_topology_option_modifier_string;
2567 char *topology_percentage_str;
2568 float topology_percentage;
2569 char *topology_probability_str;
2571 float topology_probability;
2572 unsigned long long temp_config_number;
2573 unsigned long long trial_to_run;
2576 int strict_kademlia;
2580 char *churn_filename;
2587 rounds_finished = 0;
2588 memset(&trial_info, 0, sizeof(struct GNUNET_DHTLOG_TrialInfo));
2589 /* Get path from configuration file */
2590 if (GNUNET_YES != GNUNET_CONFIGURATION_get_value_string(cfg, "paths", "servicehome", &test_directory))
2596 /* Get number of peers to start from configuration */
2597 if (GNUNET_SYSERR ==
2598 GNUNET_CONFIGURATION_get_value_number (cfg, "testing", "num_peers",
2601 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2602 "Number of peers must be specified in section %s option %s\n", "TESTING", "NUM_PEERS");
2604 GNUNET_assert(num_peers > 0 && num_peers < ULONG_MAX);
2607 * Get DHT specific testing options.
2609 if ((GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht_testing", "mysql_logging")) ||
2610 (GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht_testing", "mysql_logging_extended")))
2612 dhtlog_handle = GNUNET_DHTLOG_connect(cfg);
2613 if (dhtlog_handle == NULL)
2615 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2616 "Could not connect to mysql server for logging, will NOT log dht operations!");
2622 stop_closest = GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht", "stop_on_closest");
2623 if (stop_closest == GNUNET_SYSERR)
2624 stop_closest = GNUNET_NO;
2626 stop_found = GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht", "stop_found");
2627 if (stop_found == GNUNET_SYSERR)
2628 stop_found = GNUNET_NO;
2630 strict_kademlia = GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht", "strict_kademlia");
2631 if (strict_kademlia == GNUNET_SYSERR)
2632 strict_kademlia = GNUNET_NO;
2635 GNUNET_CONFIGURATION_get_value_string (cfg, "dht_testing", "comment",
2637 trialmessage = NULL;
2640 /** Check for a churn file to do churny simulation */
2642 GNUNET_CONFIGURATION_get_value_string(cfg, "dht_testing", "churn_file",
2645 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Reading churn data from %s\n", churn_filename);
2646 if (GNUNET_OK != GNUNET_DISK_file_test (churn_filename))
2648 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Error reading churn file!\n");
2649 GNUNET_free_non_null(trialmessage);
2650 GNUNET_free(churn_filename);
2653 if ((0 != STAT (churn_filename, &frstat)) || (frstat.st_size == 0))
2655 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
2656 "Could not open file specified for churn data, ending test!");
2658 GNUNET_free_non_null(trialmessage);
2659 GNUNET_free(churn_filename);
2663 churn_data = GNUNET_malloc_large (frstat.st_size);
2664 GNUNET_assert(churn_data != NULL);
2665 if (frstat.st_size !=
2666 GNUNET_DISK_fn_read (churn_filename, churn_data, frstat.st_size))
2668 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
2669 "Could not read file %s specified for churn, ending test!", churn_filename);
2670 GNUNET_free (churn_filename);
2671 GNUNET_free (churn_data);
2672 GNUNET_free_non_null(trialmessage);
2676 GNUNET_free_non_null(churn_filename);
2680 /* Read the first line */
2681 while (count < frstat.st_size)
2684 if (((churn_data[count] == '\n')) && (buf != &churn_data[count]))
2686 churn_data[count] = '\0';
2687 if (1 != sscanf(buf, "%u", &churn_rounds))
2689 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Failed to read number of rounds from churn file, ending test!\n");
2691 GNUNET_free_non_null(trialmessage);
2692 GNUNET_free_non_null(churn_data);
2695 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Read %u rounds from churn file\n", churn_rounds);
2696 buf = &churn_data[count + 1];
2697 churn_array = GNUNET_malloc(sizeof(unsigned int) * churn_rounds);
2698 break; /* Done with this part */
2702 if (GNUNET_OK != GNUNET_CONFIGURATION_get_value_number(cfg, "dht_testing", "churns_per_round", &churns_per_round))
2704 churns_per_round = (unsigned long long)churn_rounds;
2708 while ((count < frstat.st_size) && (line_number < churn_rounds))
2711 if (((churn_data[count] == '\n')) && (buf != &churn_data[count]))
2713 churn_data[count] = '\0';
2715 ret = sscanf(buf, "%u", &churn_array[line_number]);
2718 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Read %u peers in round %u\n", churn_array[line_number], line_number);
2723 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Error reading line `%s' in hostfile\n", buf);
2724 buf = &churn_data[count + 1];
2727 buf = &churn_data[count + 1];
2729 else if (churn_data[count] == '\n') /* Blank line */
2730 buf = &churn_data[count + 1];
2733 GNUNET_free_non_null(churn_data);
2735 /** Check for a hostfile containing user@host:port triples */
2737 GNUNET_CONFIGURATION_get_value_string (cfg, "testing", "hostfile",
2744 if (hostfile != NULL)
2746 if (GNUNET_OK != GNUNET_DISK_file_test (hostfile))
2747 GNUNET_DISK_fn_write (hostfile, NULL, 0, GNUNET_DISK_PERM_USER_READ
2748 | GNUNET_DISK_PERM_USER_WRITE);
2749 if ((0 != STAT (hostfile, &frstat)) || (frstat.st_size == 0))
2751 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
2752 "Could not open file specified for host list, ending test!");
2754 GNUNET_free_non_null(trialmessage);
2755 GNUNET_free(hostfile);
2759 data = GNUNET_malloc_large (frstat.st_size);
2760 GNUNET_assert(data != NULL);
2761 if (frstat.st_size !=
2762 GNUNET_DISK_fn_read (hostfile, data, frstat.st_size))
2764 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
2765 "Could not read file %s specified for host list, ending test!", hostfile);
2766 GNUNET_free (hostfile);
2768 GNUNET_free_non_null(trialmessage);
2772 GNUNET_free_non_null(hostfile);
2776 while (count < frstat.st_size - 1)
2779 /* if (((data[count] == '\n') || (data[count] == '\0')) && (buf != &data[count]))*/
2780 if (((data[count] == '\n')) && (buf != &data[count]))
2783 temphost = GNUNET_malloc(sizeof(struct GNUNET_TESTING_Host));
2784 ret = sscanf(buf, "%a[a-zA-Z0-9]@%a[a-zA-Z0-9.]:%hd", &temphost->username, &temphost->hostname, &temphost->port);
2787 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Successfully read host %s, port %d and user %s from file\n", temphost->hostname, temphost->port, temphost->username);
2791 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Error reading line `%s' in hostfile\n", buf);
2792 GNUNET_free(temphost);
2793 buf = &data[count + 1];
2796 /* temphost->hostname = buf; */
2797 temphost->next = hosts;
2799 buf = &data[count + 1];
2801 else if ((data[count] == '\n') || (data[count] == '\0'))
2802 buf = &data[count + 1];
2805 GNUNET_free_non_null(data);
2807 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "malicious_getters",
2808 &malicious_getters))
2809 malicious_getters = 0;
2812 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "malicious_putters",
2813 &malicious_putters))
2814 malicious_putters = 0;
2817 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "malicious_droppers",
2818 &malicious_droppers))
2819 malicious_droppers = 0;
2822 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "settle_time",
2826 if (GNUNET_SYSERR ==
2827 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "num_puts",
2829 num_puts = num_peers;
2831 if (GNUNET_SYSERR ==
2832 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "put_replication",
2834 put_replication = DEFAULT_PUT_REPLICATION;
2836 if (GNUNET_SYSERR ==
2837 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "num_gets",
2839 num_gets = num_peers;
2841 if (GNUNET_SYSERR ==
2842 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "get_replication",
2844 get_replication = DEFAULT_GET_REPLICATION;
2847 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "find_peer_delay",
2848 &temp_config_number))
2849 find_peer_delay = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_config_number);
2851 find_peer_delay = DEFAULT_FIND_PEER_DELAY;
2854 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "concurrent_find_peers",
2855 &temp_config_number))
2856 max_outstanding_find_peers = temp_config_number;
2858 max_outstanding_find_peers = DEFAULT_MAX_OUTSTANDING_FIND_PEERS;
2861 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "get_timeout",
2862 &temp_config_number))
2863 get_timeout = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_config_number);
2865 get_timeout = DEFAULT_GET_TIMEOUT;
2868 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "concurrent_puts",
2869 &temp_config_number))
2870 max_outstanding_puts = temp_config_number;
2872 max_outstanding_puts = DEFAULT_MAX_OUTSTANDING_PUTS;
2875 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "concurrent_gets",
2876 &temp_config_number))
2877 max_outstanding_gets = temp_config_number;
2879 max_outstanding_gets = DEFAULT_MAX_OUTSTANDING_GETS;
2882 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "timeout",
2883 &temp_config_number))
2884 all_get_timeout = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_config_number);
2886 all_get_timeout.rel_value = get_timeout.rel_value * num_gets;
2889 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "get_delay",
2890 &temp_config_number))
2891 get_delay = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_config_number);
2893 get_delay = DEFAULT_GET_DELAY;
2896 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "put_delay",
2897 &temp_config_number))
2898 put_delay = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_config_number);
2900 put_delay = DEFAULT_PUT_DELAY;
2903 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "peer_start_timeout",
2904 &temp_config_number))
2905 seconds_per_peer_start = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_config_number);
2907 seconds_per_peer_start = DEFAULT_SECONDS_PER_PEER_START;
2910 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "data_size",
2911 &temp_config_number))
2912 test_data_size = temp_config_number;
2914 test_data_size = DEFAULT_TEST_DATA_SIZE;
2917 * Get testing related options.
2919 if (GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno(cfg, "DHT_TESTING", "REPLICATE_SAME"))
2920 replicate_same = GNUNET_YES;
2923 * Get testing related options.
2925 if (GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno(cfg, "DHT_TESTING", "GET_FROM_SAME"))
2926 get_from_same = GNUNET_YES;
2929 if (GNUNET_NO == GNUNET_CONFIGURATION_get_value_time (cfg, "DHT_TESTING",
2930 "MALICIOUS_GET_FREQUENCY",
2931 &malicious_get_frequency))
2932 malicious_get_frequency = DEFAULT_MALICIOUS_GET_FREQUENCY;
2935 if (GNUNET_NO == GNUNET_CONFIGURATION_get_value_time (cfg, "DHT_TESTING",
2936 "MALICIOUS_PUT_FREQUENCY",
2937 &malicious_put_frequency))
2938 malicious_put_frequency = DEFAULT_MALICIOUS_PUT_FREQUENCY;
2940 if (GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno(cfg, "DHT_TESTING", "MALICIOUS_AFTER_SETTLE"))
2941 malicious_after_settle = GNUNET_YES;
2943 /* The normal behavior of the DHT is to do find peer requests
2944 * on its own. Only if this is explicitly turned off should
2945 * the testing driver issue find peer requests (even though
2946 * this is likely the default when testing).
2949 GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht",
2952 do_find_peer = GNUNET_YES;
2956 GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht",
2959 in_dht_replication = GNUNET_YES;
2962 if (GNUNET_YES != GNUNET_CONFIGURATION_get_value_number (cfg, "DHT_TESTING",
2969 if (GNUNET_YES == GNUNET_CONFIGURATION_get_value_number (cfg, "DHT_TESTING",
2971 &temp_config_number))
2973 find_peer_delay = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_config_number);
2976 find_peer_delay = DEFAULT_FIND_PEER_DELAY;
2978 if (GNUNET_YES != GNUNET_CONFIGURATION_get_value_number(cfg, "DHT_TESTING", "ROUND_DELAY", &round_delay))
2981 if (GNUNET_NO == GNUNET_CONFIGURATION_get_value_number (cfg, "DHT_TESTING",
2982 "OUTSTANDING_FIND_PEERS",
2983 &max_outstanding_find_peers))
2984 max_outstanding_find_peers = DEFAULT_MAX_OUTSTANDING_FIND_PEERS;
2986 if (GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht", "strict_kademlia"))
2987 max_outstanding_find_peers = max_outstanding_find_peers * 1;
2989 find_peer_offset = GNUNET_TIME_relative_divide (find_peer_delay, max_outstanding_find_peers);
2991 if (GNUNET_SYSERR ==
2992 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "num_rounds",
2998 if ((GNUNET_SYSERR ==
2999 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "target_total_connections",
3000 &target_total_connections)) ||
3001 (target_total_connections == 0))
3003 target_total_connections = connection_estimate(num_peers, DEFAULT_BUCKET_SIZE);
3006 topology_str = NULL;
3008 GNUNET_CONFIGURATION_get_value_string(cfg, "testing", "topology",
3009 &topology_str)) && (GNUNET_NO == GNUNET_TESTING_topology_get(&topology, topology_str)))
3011 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
3012 "Invalid topology `%s' given for section %s option %s\n", topology_str, "TESTING", "TOPOLOGY");
3013 topology = GNUNET_TESTING_TOPOLOGY_CLIQUE; /* Defaults to NONE, so set better default here */
3017 GNUNET_CONFIGURATION_get_value_string (cfg, "testing", "percentage",
3018 &topology_percentage_str))
3019 topology_percentage = 0.5;
3022 topology_percentage = atof (topology_percentage_str);
3023 GNUNET_free(topology_percentage_str);
3027 GNUNET_CONFIGURATION_get_value_string (cfg, "testing", "probability",
3028 &topology_probability_str))
3029 topology_probability = 0.5;
3032 topology_probability = atof (topology_probability_str);
3033 GNUNET_free(topology_probability_str);
3037 GNUNET_CONFIGURATION_get_value_string(cfg, "testing", "connect_topology",
3038 &connect_topology_str)) && (GNUNET_NO == GNUNET_TESTING_topology_get(&connect_topology, connect_topology_str)))
3040 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
3041 "Invalid connect topology `%s' given for section %s option %s\n", connect_topology_str, "TESTING", "CONNECT_TOPOLOGY");
3043 GNUNET_free_non_null(connect_topology_str);
3046 GNUNET_CONFIGURATION_get_value_string(cfg, "testing", "connect_topology_option",
3047 &connect_topology_option_str)) && (GNUNET_NO == GNUNET_TESTING_topology_option_get(&connect_topology_option, connect_topology_option_str)))
3049 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
3050 "Invalid connect topology option `%s' given for section %s option %s\n", connect_topology_option_str, "TESTING", "CONNECT_TOPOLOGY_OPTION");
3051 connect_topology_option = GNUNET_TESTING_TOPOLOGY_OPTION_ALL; /* Defaults to NONE, set to ALL */
3053 GNUNET_free_non_null(connect_topology_option_str);
3056 GNUNET_CONFIGURATION_get_value_string (cfg, "testing", "connect_topology_option_modifier",
3057 &connect_topology_option_modifier_string))
3059 if (sscanf(connect_topology_option_modifier_string, "%lf", &connect_topology_option_modifier) != 1)
3061 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
3062 _("Invalid value `%s' for option `%s' in section `%s': expected float\n"),
3063 connect_topology_option_modifier_string,
3064 "connect_topology_option_modifier",
3067 GNUNET_free (connect_topology_option_modifier_string);
3070 if (GNUNET_YES != GNUNET_CONFIGURATION_get_value_string (cfg, "testing", "blacklist_transports",
3071 &blacklist_transports))
3072 blacklist_transports = NULL;
3075 GNUNET_CONFIGURATION_get_value_string(cfg, "testing", "blacklist_topology",
3076 &blacklist_topology_str)) &&
3077 (GNUNET_NO == GNUNET_TESTING_topology_get(&blacklist_topology, blacklist_topology_str)))
3079 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
3080 "Invalid topology `%s' given for section %s option %s\n", topology_str, "TESTING", "BLACKLIST_TOPOLOGY");
3082 GNUNET_free_non_null(topology_str);
3083 GNUNET_free_non_null(blacklist_topology_str);
3085 /* Set peers_left so we know when all peers started */
3086 peers_left = num_peers;
3089 /* Set up a task to end testing if peer start fails */
3090 die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(seconds_per_peer_start, num_peers),
3091 &end_badly, "didn't generate all hostkeys within allowed startup time!");
3093 if (dhtlog_handle == NULL)
3094 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
3095 "dhtlog_handle is NULL!");
3097 trial_info.other_identifier = (unsigned int)trial_to_run;
3098 trial_info.num_nodes = peers_left;
3099 trial_info.topology = topology;
3100 trial_info.blacklist_topology = blacklist_topology;
3101 trial_info.connect_topology = connect_topology;
3102 trial_info.connect_topology_option = connect_topology_option;
3103 trial_info.connect_topology_option_modifier = connect_topology_option_modifier;
3104 trial_info.topology_percentage = topology_percentage;
3105 trial_info.topology_probability = topology_probability;
3106 trial_info.puts = num_puts;
3107 trial_info.gets = num_gets;
3108 trial_info.concurrent = max_outstanding_gets;
3109 trial_info.settle_time = settle_time;
3110 trial_info.num_rounds = total_rounds;
3111 trial_info.malicious_getters = malicious_getters;
3112 trial_info.malicious_putters = malicious_putters;
3113 trial_info.malicious_droppers = malicious_droppers;
3114 trial_info.malicious_get_frequency = malicious_get_frequency.rel_value;
3115 trial_info.malicious_put_frequency = malicious_put_frequency.rel_value;
3116 trial_info.stop_closest = stop_closest;
3117 trial_info.stop_found = stop_found;
3118 trial_info.strict_kademlia = strict_kademlia;
3120 if (trialmessage != NULL)
3121 trial_info.message = trialmessage;
3123 trial_info.message = "";
3125 if (dhtlog_handle != NULL)
3126 dhtlog_handle->insert_trial(&trial_info);
3128 GNUNET_free_non_null(trialmessage);
3130 hostkey_meter = create_meter(peers_left, "Hostkeys created ", GNUNET_YES);
3131 peer_start_meter = create_meter(peers_left, "Peers started ", GNUNET_YES);
3133 put_meter = create_meter(num_puts, "Puts completed ", GNUNET_YES);
3134 get_meter = create_meter(num_gets, "Gets completed ", GNUNET_YES);
3135 pg = GNUNET_TESTING_daemons_start (cfg,
3137 GNUNET_TIME_relative_multiply(seconds_per_peer_start, num_peers),
3138 &hostkey_callback, NULL,
3139 &peers_started_callback, NULL,
3140 &topology_callback, NULL,
3143 while (temphost != NULL)
3145 tempnext = temphost->next;
3146 GNUNET_free (temphost->username);
3147 GNUNET_free (temphost->hostname);
3148 GNUNET_free (temphost);
3149 temphost = tempnext;
3154 main (int argc, char *argv[])
3157 struct GNUNET_GETOPT_CommandLineOption options[] = {
3158 GNUNET_GETOPT_OPTION_END
3161 ret = GNUNET_PROGRAM_run (argc,
3162 argv, "gnunet-dht-driver", "nohelp",
3163 options, &run, &ok);
3165 if (ret != GNUNET_OK)
3167 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "`gnunet-dht-driver': Failed with error code %d\n", ret);
3171 * Need to remove base directory, subdirectories taken care
3172 * of by the testing framework.
3174 if (GNUNET_DISK_directory_remove (test_directory) != GNUNET_OK)
3176 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Failed to remove testing directory %s\n", test_directory);
3181 /* end of gnunet-dht-driver.c */