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 * Number of rounds for testing (PUTS + GETS)
506 static unsigned long long total_rounds;
509 * Number of rounds already run
511 static unsigned int rounds_finished;
514 * Number of rounds of churn to read from the file (first line, should be a single number).
516 static unsigned int churn_rounds;
519 * Current round we are in for churn, tells us how many peers to connect/disconnect.
521 static unsigned int current_churn_round;
524 * Number of times to churn per round
526 static unsigned long long churns_per_round;
529 * Array of churn values.
531 static unsigned int *churn_array;
534 * Hash map of stats contexts.
536 static struct GNUNET_CONTAINER_MultiHashMap *stats_map;
539 * LL of malicious settings.
541 struct MaliciousContext *all_malicious;
544 * List of GETS to perform
546 struct TestGetContext *all_gets;
549 * List of PUTS to perform
551 struct TestPutContext *all_puts;
554 * Directory to store temporary data in, defined in config file
556 static char *test_directory;
559 * Variable used to store the number of connections we should wait for.
561 static unsigned int expected_connections;
564 * Variable used to keep track of how many peers aren't yet started.
566 static unsigned long long peers_left;
569 * Handle to the set of all peers run for this test.
571 static struct GNUNET_TESTING_PeerGroup *pg;
575 * Global config handle.
577 static const struct GNUNET_CONFIGURATION_Handle *config;
580 * Total number of peers to run, set based on config file.
582 static unsigned long long num_peers;
585 * Total number of items to insert.
587 static unsigned long long num_puts;
590 * How many puts do we currently have in flight?
592 static unsigned long long outstanding_puts;
595 * How many puts are done?
597 static unsigned long long puts_completed;
600 * Total number of items to attempt to get.
602 static unsigned long long num_gets;
605 * How many puts do we currently have in flight?
607 static unsigned long long outstanding_gets;
610 * How many gets are done?
612 static unsigned long long gets_completed;
615 * How many gets failed?
617 static unsigned long long gets_failed;
620 * How many malicious control messages do
621 * we currently have in flight?
623 static unsigned long long outstanding_malicious;
626 * How many set malicious peers are done?
628 static unsigned long long malicious_completed;
631 * Global used to count how many connections we have currently
632 * been notified about (how many times has topology_callback been called
635 static unsigned int total_connections;
638 * Global used to count how many failed connections we have
639 * been notified about (how many times has topology_callback
640 * been called with failure?)
642 static unsigned int failed_connections;
644 /* Task handle to use to schedule shutdown if something goes wrong */
645 GNUNET_SCHEDULER_TaskIdentifier die_task;
647 static char *blacklist_transports;
649 static enum GNUNET_TESTING_Topology topology;
651 static enum GNUNET_TESTING_Topology blacklist_topology = GNUNET_TESTING_TOPOLOGY_NONE; /* Don't do any blacklisting */
653 static enum GNUNET_TESTING_Topology connect_topology = GNUNET_TESTING_TOPOLOGY_NONE; /* NONE actually means connect all allowed peers */
655 static enum GNUNET_TESTING_TopologyOption connect_topology_option = GNUNET_TESTING_TOPOLOGY_OPTION_ALL;
657 static double connect_topology_option_modifier = 0.0;
659 static struct ProgressMeter *hostkey_meter;
661 static struct ProgressMeter *peer_start_meter;
663 static struct ProgressMeter *peer_connect_meter;
665 static struct ProgressMeter *put_meter;
667 static struct ProgressMeter *get_meter;
669 static GNUNET_HashCode *known_keys;
671 /* Global return value (0 for success, anything else for failure) */
675 * Create a meter to keep track of the progress of some task.
677 * @param total the total number of items to complete
678 * @param start_string a string to prefix the meter with (if printing)
679 * @param print GNUNET_YES to print the meter, GNUNET_NO to count
682 * @return the progress meter
684 static struct ProgressMeter *
685 create_meter(unsigned int total, char * start_string, int print)
687 struct ProgressMeter *ret;
688 ret = GNUNET_malloc(sizeof(struct ProgressMeter));
691 ret->modnum = total / 4;
692 ret->dotnum = (total / 50) + 1;
693 if (start_string != NULL)
694 ret->startup_string = GNUNET_strdup(start_string);
696 ret->startup_string = GNUNET_strdup("");
702 * Update progress meter (increment by one).
704 * @param meter the meter to update and print info for
706 * @return GNUNET_YES if called the total requested,
707 * GNUNET_NO if more items expected
710 update_meter(struct ProgressMeter *meter)
712 if (meter->print == GNUNET_YES)
714 if (meter->completed % meter->modnum == 0)
716 if (meter->completed == 0)
718 fprintf(stdout, "%sProgress: [0%%", meter->startup_string);
721 fprintf(stdout, "%d%%", (int)(((float)meter->completed / meter->total) * 100));
723 else if (meter->completed % meter->dotnum == 0)
724 fprintf(stdout, ".");
726 if (meter->completed + 1 == meter->total)
727 fprintf(stdout, "%d%%]\n", 100);
732 if (meter->completed == meter->total)
738 * Reset progress meter.
740 * @param meter the meter to reset
742 * @return GNUNET_YES if meter reset,
743 * GNUNET_SYSERR on error
746 reset_meter(struct ProgressMeter *meter)
749 return GNUNET_SYSERR;
751 meter->completed = 0;
756 * Release resources for meter
758 * @param meter the meter to free
761 free_meter(struct ProgressMeter *meter)
763 GNUNET_free_non_null (meter->startup_string);
768 * Check whether peers successfully shut down.
771 shutdown_callback (void *cls,
782 * Task to release DHT handles for PUT
785 put_disconnect_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
787 struct TestPutContext *test_put = cls;
788 test_put->disconnect_task = GNUNET_SCHEDULER_NO_TASK;
789 GNUNET_DHT_disconnect(test_put->dht_handle);
790 test_put->dht_handle = NULL;
791 test_put->daemon = GNUNET_TESTING_daemon_get(pg, GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers));
795 * Function scheduled to be run on the successful completion of this
799 finish_testing (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
801 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Ending test normally!\n", (char *)cls);
802 GNUNET_assert (pg != NULL);
803 struct TestPutContext *test_put = all_puts;
804 struct TestGetContext *test_get = all_gets;
806 while (test_put != NULL)
808 if (test_put->disconnect_task != GNUNET_SCHEDULER_NO_TASK)
809 GNUNET_SCHEDULER_cancel(test_put->disconnect_task);
810 if (test_put->dht_handle != NULL)
811 GNUNET_DHT_disconnect(test_put->dht_handle);
812 test_put = test_put->next;
815 while (test_get != NULL)
817 if (test_get->disconnect_task != GNUNET_SCHEDULER_NO_TASK)
818 GNUNET_SCHEDULER_cancel(test_get->disconnect_task);
819 if (test_get->get_handle != NULL)
820 GNUNET_DHT_get_stop(test_get->get_handle);
821 if (test_get->dht_handle != NULL)
822 GNUNET_DHT_disconnect(test_get->dht_handle);
823 test_get = test_get->next;
826 GNUNET_TESTING_daemons_stop (pg, DEFAULT_TIMEOUT, &shutdown_callback, NULL);
828 if (dhtlog_handle != NULL)
830 fprintf(stderr, "Update trial endtime\n");
831 dhtlog_handle->update_trial (gets_completed);
832 GNUNET_DHTLOG_disconnect(dhtlog_handle);
833 dhtlog_handle = NULL;
836 if (hostkey_meter != NULL)
837 free_meter(hostkey_meter);
838 if (peer_start_meter != NULL)
839 free_meter(peer_start_meter);
840 if (peer_connect_meter != NULL)
841 free_meter(peer_connect_meter);
842 if (put_meter != NULL)
843 free_meter(put_meter);
844 if (get_meter != NULL)
845 free_meter(get_meter);
851 * Callback for iterating over all the peer connections of a peer group.
854 log_topology_cb (void *cls,
855 const struct GNUNET_PeerIdentity *first,
856 const struct GNUNET_PeerIdentity *second,
857 struct GNUNET_TIME_Relative latency,
861 struct TopologyIteratorContext *topo_ctx = cls;
862 if ((first != NULL) && (second != NULL))
864 if ((topo_ctx->peers_seen != NULL) && (GNUNET_NO == GNUNET_CONTAINER_multihashmap_contains(topo_ctx->peers_seen, &first->hashPubKey)))
866 GNUNET_CONTAINER_multihashmap_put(topo_ctx->peers_seen, &first->hashPubKey, NULL, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
867 topo_ctx->total_peers++;
869 topo_ctx->total_connections++;
870 if (GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno(config, "dht_testing", "mysql_logging"))
871 dhtlog_handle->insert_extended_topology(first, second);
875 GNUNET_assert(dhtlog_handle != NULL);
876 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);
877 dhtlog_handle->update_topology(topo_ctx->total_connections);
878 if (topo_ctx->cont != NULL)
879 GNUNET_SCHEDULER_add_now (topo_ctx->cont, topo_ctx->cls);
880 if (topo_ctx->peers_seen != NULL)
881 GNUNET_CONTAINER_multihashmap_destroy(topo_ctx->peers_seen);
882 GNUNET_free(topo_ctx);
887 * Iterator over hash map entries.
889 * @param cls closure - always NULL
890 * @param key current key code
891 * @param value value in the hash map, a stats context
892 * @return GNUNET_YES if we should continue to
896 static int stats_iterate (void *cls,
897 const GNUNET_HashCode * key,
900 struct StatisticsIteratorContext *stats_ctx;
904 dhtlog_handle->insert_stat(stats_ctx->peer, stats_ctx->stat_routes, stats_ctx->stat_route_forwards, stats_ctx->stat_results,
905 stats_ctx->stat_results_to_client, stats_ctx->stat_result_forwards, stats_ctx->stat_gets,
906 stats_ctx->stat_puts, stats_ctx->stat_puts_inserted, stats_ctx->stat_find_peer,
907 stats_ctx->stat_find_peer_start, stats_ctx->stat_get_start, stats_ctx->stat_put_start,
908 stats_ctx->stat_find_peer_reply, stats_ctx->stat_get_reply, stats_ctx->stat_find_peer_answer,
909 stats_ctx->stat_get_response_start);
910 GNUNET_free(stats_ctx);
915 stats_finished (void *cls, int result)
917 fprintf(stderr, "Finished getting all peers statistics, iterating!\n");
918 GNUNET_CONTAINER_multihashmap_iterate(stats_map, &stats_iterate, NULL);
919 GNUNET_CONTAINER_multihashmap_destroy(stats_map);
920 GNUNET_SCHEDULER_add_now (&finish_testing, NULL);
924 * Callback function to process statistic values.
927 * @param peer the peer the statistics belong to
928 * @param subsystem name of subsystem that created the statistic
929 * @param name the name of the datum
930 * @param value the current value
931 * @param is_persistent GNUNET_YES if the value is persistent, GNUNET_NO if not
932 * @return GNUNET_OK to continue, GNUNET_SYSERR to abort iteration
934 static int stats_handle (void *cls,
935 const struct GNUNET_PeerIdentity *peer,
936 const char *subsystem,
941 struct StatisticsIteratorContext *stats_ctx;
943 if (dhtlog_handle != NULL)
944 dhtlog_handle->add_generic_stat(peer, name, subsystem, value);
945 if (GNUNET_CONTAINER_multihashmap_contains(stats_map, &peer->hashPubKey))
947 stats_ctx = GNUNET_CONTAINER_multihashmap_get(stats_map, &peer->hashPubKey);
951 stats_ctx = GNUNET_malloc(sizeof(struct StatisticsIteratorContext));
952 stats_ctx->peer = peer;
953 GNUNET_CONTAINER_multihashmap_put(stats_map, &peer->hashPubKey, stats_ctx, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
955 GNUNET_assert(stats_ctx != NULL);
957 if (strcmp(name, STAT_ROUTES) == 0)
958 stats_ctx->stat_routes = value;
959 else if (strcmp(name, STAT_ROUTE_FORWARDS) == 0)
960 stats_ctx->stat_route_forwards = value;
961 else if (strcmp(name, STAT_RESULTS) == 0)
962 stats_ctx->stat_results = value;
963 else if (strcmp(name, STAT_RESULTS_TO_CLIENT) == 0)
964 stats_ctx->stat_results_to_client = value;
965 else if (strcmp(name, STAT_RESULT_FORWARDS) == 0)
966 stats_ctx->stat_result_forwards = value;
967 else if (strcmp(name, STAT_GETS) == 0)
968 stats_ctx->stat_gets = value;
969 else if (strcmp(name, STAT_PUTS) == 0)
970 stats_ctx->stat_puts = value;
971 else if (strcmp(name, STAT_PUTS_INSERTED) == 0)
972 stats_ctx->stat_puts_inserted = value;
973 else if (strcmp(name, STAT_FIND_PEER) == 0)
974 stats_ctx->stat_find_peer = value;
975 else if (strcmp(name, STAT_FIND_PEER_START) == 0)
976 stats_ctx->stat_find_peer_start = value;
977 else if (strcmp(name, STAT_GET_START) == 0)
978 stats_ctx->stat_get_start = value;
979 else if (strcmp(name, STAT_PUT_START) == 0)
980 stats_ctx->stat_put_start = value;
981 else if (strcmp(name, STAT_FIND_PEER_REPLY) == 0)
982 stats_ctx->stat_find_peer_reply = value;
983 else if (strcmp(name, STAT_GET_REPLY) == 0)
984 stats_ctx->stat_get_reply = value;
985 else if (strcmp(name, STAT_FIND_PEER_ANSWER) == 0)
986 stats_ctx->stat_find_peer_answer = value;
987 else if (strcmp(name, STAT_GET_RESPONSE_START) == 0)
988 stats_ctx->stat_get_response_start = value;
994 * Connect to statistics service for each peer and get the appropriate
995 * dht statistics for safe keeping.
998 log_dht_statistics (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1000 stats_map = GNUNET_CONTAINER_multihashmap_create(num_peers);
1001 fprintf(stderr, "Starting statistics logging\n");
1002 GNUNET_TESTING_get_statistics(pg, &stats_finished, &stats_handle, NULL);
1007 * Connect to all peers in the peer group and iterate over their
1011 capture_current_topology (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1013 struct TopologyIteratorContext *topo_ctx = cls;
1014 dhtlog_handle->insert_topology(0);
1015 GNUNET_TESTING_get_topology (pg, &log_topology_cb, topo_ctx);
1020 * Check if the get_handle is being used, if so stop the request. Either
1021 * way, schedule the end_badly_cont function which actually shuts down the
1025 end_badly (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1027 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Failing test with error: `%s'!\n", (char *)cls);
1029 struct TestPutContext *test_put = all_puts;
1030 struct TestGetContext *test_get = all_gets;
1032 while (test_put != NULL)
1034 if (test_put->disconnect_task != GNUNET_SCHEDULER_NO_TASK)
1035 GNUNET_SCHEDULER_cancel(test_put->disconnect_task);
1036 if (test_put->dht_handle != NULL)
1037 GNUNET_DHT_disconnect(test_put->dht_handle);
1038 test_put = test_put->next;
1041 while (test_get != NULL)
1043 if (test_get->disconnect_task != GNUNET_SCHEDULER_NO_TASK)
1044 GNUNET_SCHEDULER_cancel(test_get->disconnect_task);
1045 if (test_get->get_handle != NULL)
1046 GNUNET_DHT_get_stop(test_get->get_handle);
1047 if (test_get->dht_handle != NULL)
1048 GNUNET_DHT_disconnect(test_get->dht_handle);
1049 test_get = test_get->next;
1052 GNUNET_TESTING_daemons_stop (pg, DEFAULT_TIMEOUT, &shutdown_callback, NULL);
1054 if (dhtlog_handle != NULL)
1056 fprintf(stderr, "Update trial endtime\n");
1057 dhtlog_handle->update_trial (gets_completed);
1058 GNUNET_DHTLOG_disconnect(dhtlog_handle);
1059 dhtlog_handle = NULL;
1062 if (hostkey_meter != NULL)
1063 free_meter(hostkey_meter);
1064 if (peer_start_meter != NULL)
1065 free_meter(peer_start_meter);
1066 if (peer_connect_meter != NULL)
1067 free_meter(peer_connect_meter);
1068 if (put_meter != NULL)
1069 free_meter(put_meter);
1070 if (get_meter != NULL)
1071 free_meter(get_meter);
1077 * Forward declaration.
1080 do_put (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc);
1083 * Forward declaration.
1086 do_get (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc);
1089 * Iterator over hash map entries.
1091 * @param cls closure
1092 * @param key current key code
1093 * @param value value in the hash map
1094 * @return GNUNET_YES if we should continue to
1098 static int remove_peer_count (void *cls,
1099 const GNUNET_HashCode * key,
1102 struct FindPeerContext *find_peer_ctx = cls;
1103 struct PeerCount *peer_count = value;
1104 GNUNET_CONTAINER_heap_remove_node(find_peer_ctx->peer_min_heap, peer_count->heap_node);
1105 GNUNET_free(peer_count);
1111 * Connect to all peers in the peer group and iterate over their
1115 count_new_peers (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1117 struct FindPeerContext *find_peer_context = cls;
1118 find_peer_context->previous_peers = find_peer_context->current_peers;
1119 find_peer_context->current_peers = 0;
1120 GNUNET_TESTING_get_topology (pg, find_peer_context->count_peers_cb, find_peer_context);
1124 decrement_find_peers (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1126 struct TestFindPeer *test_find_peer = cls;
1127 GNUNET_assert(test_find_peer->find_peer_context->outstanding > 0);
1128 test_find_peer->find_peer_context->outstanding--;
1129 test_find_peer->find_peer_context->total--;
1130 if ((0 == test_find_peer->find_peer_context->total) &&
1131 (GNUNET_TIME_absolute_get_remaining(test_find_peer->find_peer_context->endtime).rel_value > 60))
1133 GNUNET_SCHEDULER_add_now(&count_new_peers, test_find_peer->find_peer_context);
1135 GNUNET_free(test_find_peer);
1139 * A find peer request has been sent to the server, now we will schedule a task
1140 * to wait the appropriate time to allow the request to go out and back.
1142 * @param cls closure - a TestFindPeer struct
1143 * @param tc context the task is being called with
1146 handle_find_peer_sent (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1148 struct TestFindPeer *test_find_peer = cls;
1150 GNUNET_DHT_disconnect(test_find_peer->dht_handle);
1151 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_divide(find_peer_delay, 2), &decrement_find_peers, test_find_peer);
1156 send_find_peer_request (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1158 struct TestFindPeer *test_find_peer = cls;
1160 if (test_find_peer->find_peer_context->outstanding > max_outstanding_find_peers)
1162 GNUNET_SCHEDULER_add_delayed(find_peer_offset, &send_find_peer_request, test_find_peer);
1166 test_find_peer->find_peer_context->outstanding++;
1167 if (GNUNET_TIME_absolute_get_remaining(test_find_peer->find_peer_context->endtime).rel_value == 0)
1169 GNUNET_SCHEDULER_add_now(&decrement_find_peers, test_find_peer);
1173 test_find_peer->dht_handle = GNUNET_DHT_connect(test_find_peer->daemon->cfg, 1);
1174 GNUNET_assert(test_find_peer->dht_handle != NULL);
1175 GNUNET_DHT_find_peers (test_find_peer->dht_handle,
1176 &handle_find_peer_sent, test_find_peer);
1181 * Add a connection to the find_peer_context given. This may
1182 * be complete overkill, but allows us to choose the peers with
1183 * the least connections to initiate find peer requests from.
1185 static void add_new_connection(struct FindPeerContext *find_peer_context,
1186 const struct GNUNET_PeerIdentity *first,
1187 const struct GNUNET_PeerIdentity *second)
1189 struct PeerCount *first_count;
1190 struct PeerCount *second_count;
1192 if (GNUNET_CONTAINER_multihashmap_contains(find_peer_context->peer_hash, &first->hashPubKey))
1194 first_count = GNUNET_CONTAINER_multihashmap_get(find_peer_context->peer_hash, &first->hashPubKey);
1195 GNUNET_assert(first_count != NULL);
1196 first_count->count++;
1197 GNUNET_CONTAINER_heap_update_cost(find_peer_context->peer_min_heap, first_count->heap_node, first_count->count);
1201 first_count = GNUNET_malloc(sizeof(struct PeerCount));
1202 first_count->count = 1;
1203 memcpy(&first_count->peer_id, first, sizeof(struct GNUNET_PeerIdentity));
1204 first_count->heap_node = GNUNET_CONTAINER_heap_insert(find_peer_context->peer_min_heap, first_count, first_count->count);
1205 GNUNET_CONTAINER_multihashmap_put(find_peer_context->peer_hash, &first->hashPubKey, first_count, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
1208 if (GNUNET_CONTAINER_multihashmap_contains(find_peer_context->peer_hash, &second->hashPubKey))
1210 second_count = GNUNET_CONTAINER_multihashmap_get(find_peer_context->peer_hash, &second->hashPubKey);
1211 GNUNET_assert(second_count != NULL);
1212 second_count->count++;
1213 GNUNET_CONTAINER_heap_update_cost(find_peer_context->peer_min_heap, second_count->heap_node, second_count->count);
1217 second_count = GNUNET_malloc(sizeof(struct PeerCount));
1218 second_count->count = 1;
1219 memcpy(&second_count->peer_id, second, sizeof(struct GNUNET_PeerIdentity));
1220 second_count->heap_node = GNUNET_CONTAINER_heap_insert(find_peer_context->peer_min_heap, second_count, second_count->count);
1221 GNUNET_CONTAINER_multihashmap_put(find_peer_context->peer_hash, &second->hashPubKey, second_count, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
1227 * Iterate over min heap of connections per peer. For any
1228 * peer that has 0 connections, attempt to connect them to
1231 * @param cls closure a struct FindPeerContext
1232 * @param node internal node of the heap
1233 * @param element value stored, a struct PeerCount
1234 * @param cost cost associated with the node
1235 * @return GNUNET_YES if we should continue to iterate,
1238 static int iterate_min_heap_peers (void *cls,
1239 struct GNUNET_CONTAINER_HeapNode *node,
1241 GNUNET_CONTAINER_HeapCostType cost)
1243 struct FindPeerContext *find_peer_context = cls;
1244 struct PeerCount *peer_count = element;
1245 struct GNUNET_TESTING_Daemon *d1;
1246 struct GNUNET_TESTING_Daemon *d2;
1247 struct GNUNET_TIME_Relative timeout;
1250 d1 = GNUNET_TESTING_daemon_get_by_id (pg, &peer_count->peer_id);
1251 GNUNET_assert(d1 != NULL);
1253 while ((d2 == d1) || (GNUNET_YES != GNUNET_TESTING_daemon_running(d2)))
1255 d2 = GNUNET_TESTING_daemon_get(pg, GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers));
1256 GNUNET_assert(d2 != NULL);
1259 /** Just try to connect the peers, don't worry about callbacks, etc. **/
1260 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);
1261 timeout = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, DEFAULT_CONNECT_TIMEOUT);
1262 if (GNUNET_TIME_relative_to_absolute(timeout).abs_value > find_peer_context->endtime.abs_value)
1264 timeout = GNUNET_TIME_absolute_get_remaining(find_peer_context->endtime);
1266 GNUNET_TESTING_daemons_connect(d1, d2, timeout, DEFAULT_RECONNECT_ATTEMPTS, NULL, NULL);
1268 if (GNUNET_TIME_absolute_get_remaining(find_peer_context->endtime).rel_value > 0)
1275 * Forward declaration.
1278 schedule_churn_find_peer_requests (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc);
1281 * Callback for iterating over all the peer connections of a peer group.
1282 * Used after we have churned on some peers to find which ones have zero
1283 * connections so we can make them issue find peer requests.
1286 count_peers_churn_cb (void *cls,
1287 const struct GNUNET_PeerIdentity *first,
1288 const struct GNUNET_PeerIdentity *second,
1289 struct GNUNET_TIME_Relative latency,
1293 struct FindPeerContext *find_peer_context = cls;
1294 struct TopologyIteratorContext *topo_ctx;
1295 struct PeerCount *peer_count;
1297 if ((first != NULL) && (second != NULL))
1299 add_new_connection(find_peer_context, first, second);
1300 find_peer_context->current_peers++;
1304 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Peer count finished (%u connections)\n",
1305 find_peer_context->current_peers);
1306 peer_count = GNUNET_CONTAINER_heap_peek(find_peer_context->peer_min_heap);
1307 GNUNET_assert(peer_count != NULL);
1308 /* 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. */
1309 /* NO they won't, because we have disabled peerinfo writing to disk (remember?) so we WILL have to give them new connections */
1310 /* Best course of action: have DHT automatically try to add peers from peerinfo on startup. This way IF peerinfo writes to file
1311 * then some peers will end up connected.
1313 * Also, find any peers that have zero connections here and set up a task to choose at random another peer in the network to
1314 * 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
1315 * until they get a peer.
1317 /* However, they won't automatically be connected to any of their previous peers... How can we handle that? */
1318 /* So now we have choices: do we want them to come back with all their connections? Probably not, but it solves this mess. */
1320 /* Second problem, which is still a problem, is that a FIND_PEER request won't work when a peer has no connections */
1323 * Okay, so here's how this *should* work now.
1325 * 1. We check the min heap for any peers that have 0 connections.
1326 * a. If any are found, we iterate over the heap and just randomly
1327 * choose another peer and ask testing to please connect the two.
1328 * This takes care of the case that a peer just randomly joins the
1329 * network. However, if there are strict topology restrictions
1330 * (imagine a ring) choosing randomly most likely won't help.
1331 * We make sure the connection attempt doesn't take longer than
1332 * the total timeout, but don't care too much about the result.
1333 * b. After that, we still schedule the find peer requests (concurrently
1334 * with the connect attempts most likely). This handles the case
1335 * that the DHT iterates over peerinfo and just needs to try to send
1336 * a message to get connected. This should handle the case that the
1337 * topology is very strict.
1339 * 2. If all peers have > 0 connections, we still send find peer requests
1340 * as long as possible (until timeout is reached) to help out those
1341 * peers that were newly churned and need more connections. This is because
1342 * once all new peers have established a single connection, they won't be
1345 * 3. Once we reach the timeout, we can do no more. We must schedule the
1346 * next iteration of get requests regardless of connections that peers
1347 * may or may not have.
1349 * Caveat: it would be nice to get peers to take data offline with them and
1350 * come back with it (or not) based on the testing framework. The
1351 * same goes for remembering previous connections, but putting either
1352 * into the general testing churn options seems like overkill because
1353 * these are very specialized cases.
1355 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);
1356 if ((peer_count->count == 0) && (GNUNET_TIME_absolute_get_remaining(find_peer_context->endtime).rel_value > 0))
1358 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Found peer with no connections, will choose some peer(s) at random to connect to!\n");
1359 GNUNET_CONTAINER_heap_iterate (find_peer_context->peer_min_heap, &iterate_min_heap_peers, find_peer_context);
1360 GNUNET_SCHEDULER_add_now(&schedule_churn_find_peer_requests, find_peer_context);
1362 else if ((GNUNET_TIME_absolute_get_remaining(find_peer_context->endtime).rel_value > 0) && (find_peer_context->last_sent != 0))
1364 GNUNET_SCHEDULER_add_now(&schedule_churn_find_peer_requests, find_peer_context);
1368 GNUNET_CONTAINER_multihashmap_iterate(find_peer_context->peer_hash, &remove_peer_count, find_peer_context);
1369 GNUNET_CONTAINER_multihashmap_destroy(find_peer_context->peer_hash);
1370 GNUNET_CONTAINER_heap_destroy(find_peer_context->peer_min_heap);
1371 GNUNET_free(find_peer_context);
1372 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Churn round %u of %llu finished, scheduling next GET round.\n", current_churn_round, churn_rounds);
1373 if (dhtlog_handle != NULL)
1375 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
1376 topo_ctx->cont = &do_get;
1377 topo_ctx->cls = all_gets;
1378 topo_ctx->timeout = DEFAULT_GET_TIMEOUT;
1379 topo_ctx->peers_seen = GNUNET_CONTAINER_multihashmap_create(num_peers);
1380 die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_add(GNUNET_TIME_relative_add(DEFAULT_GET_TIMEOUT, all_get_timeout), DEFAULT_TOPOLOGY_CAPTURE_TIMEOUT),
1381 &end_badly, "from do gets (count_peers_churn_cb)");
1382 GNUNET_SCHEDULER_add_now(&capture_current_topology, topo_ctx);
1386 die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_add(GNUNET_TIME_relative_add(DEFAULT_GET_TIMEOUT, all_get_timeout), DEFAULT_TOPOLOGY_CAPTURE_TIMEOUT),
1387 &end_badly, "from do gets (count_peers_churn_cb)");
1388 GNUNET_SCHEDULER_add_now(&do_get, all_gets);
1395 * Set up a single find peer request for each peer in the topology. Do this
1396 * until the settle time is over, limited by the number of outstanding requests
1397 * and the time allowed for each one!
1400 schedule_churn_find_peer_requests (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1402 struct FindPeerContext *find_peer_ctx = cls;
1403 struct TestFindPeer *test_find_peer;
1404 struct PeerCount *peer_count;
1407 if (find_peer_ctx->previous_peers == 0) /* First time, go slowly */
1408 find_peer_ctx->total = 1;
1409 else if (find_peer_ctx->current_peers - find_peer_ctx->previous_peers < MIN_FIND_PEER_CUTOFF)
1410 find_peer_ctx->total = find_peer_ctx->total / 2;
1411 else if (find_peer_ctx->current_peers - find_peer_ctx->previous_peers > MAX_FIND_PEER_CUTOFF) /* Found LOTS of peers, still go slowly */
1412 find_peer_ctx->total = find_peer_ctx->last_sent - (find_peer_ctx->last_sent / 4);
1414 find_peer_ctx->total = find_peer_ctx->last_sent * 4;
1416 if (find_peer_ctx->total > max_outstanding_find_peers)
1417 find_peer_ctx->total = max_outstanding_find_peers;
1419 find_peer_ctx->last_sent = find_peer_ctx->total;
1420 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Sending %u find peer messages (after churn)\n", find_peer_ctx->total);
1422 if (find_peer_ctx->total > 0)
1423 find_peer_offset = GNUNET_TIME_relative_divide(find_peer_delay, find_peer_ctx->total);
1426 find_peer_ctx->previous_peers = find_peer_ctx->current_peers;
1427 find_peer_ctx->current_peers = 0;
1428 GNUNET_TESTING_get_topology (pg, &count_peers_churn_cb, find_peer_ctx);
1432 for (i = 0; i < find_peer_ctx->total; i++)
1434 test_find_peer = GNUNET_malloc(sizeof(struct TestFindPeer));
1435 /* If we have sent requests, choose peers with a low number of connections to send requests from */
1436 peer_count = GNUNET_CONTAINER_heap_remove_root(find_peer_ctx->peer_min_heap);
1437 GNUNET_assert(peer_count != NULL);
1438 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Sending find peer request from peer with %u connections\n", peer_count->count);
1439 GNUNET_CONTAINER_multihashmap_remove(find_peer_ctx->peer_hash, &peer_count->peer_id.hashPubKey, peer_count);
1440 test_find_peer->daemon = GNUNET_TESTING_daemon_get_by_id(pg, &peer_count->peer_id);
1441 GNUNET_assert(test_find_peer->daemon != NULL);
1442 test_find_peer->find_peer_context = find_peer_ctx;
1443 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_multiply(find_peer_offset, i), &send_find_peer_request, test_find_peer);
1446 if ((find_peer_ctx->peer_hash == NULL) && (find_peer_ctx->peer_min_heap == NULL))
1448 find_peer_ctx->peer_hash = GNUNET_CONTAINER_multihashmap_create(num_peers);
1449 find_peer_ctx->peer_min_heap = GNUNET_CONTAINER_heap_create(GNUNET_CONTAINER_HEAP_ORDER_MIN);
1453 GNUNET_CONTAINER_multihashmap_iterate(find_peer_ctx->peer_hash, &remove_peer_count, find_peer_ctx);
1454 GNUNET_CONTAINER_multihashmap_destroy(find_peer_ctx->peer_hash);
1455 find_peer_ctx->peer_hash = GNUNET_CONTAINER_multihashmap_create(num_peers);
1458 GNUNET_assert(0 == GNUNET_CONTAINER_multihashmap_size(find_peer_ctx->peer_hash));
1459 GNUNET_assert(0 == GNUNET_CONTAINER_heap_get_size(find_peer_ctx->peer_min_heap));
1462 static void schedule_churn_get_topology (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1464 struct FindPeerContext *find_peer_context = cls;
1465 GNUNET_TESTING_get_topology (pg, &count_peers_churn_cb, find_peer_context);
1469 * Called when churning of the topology has finished.
1471 * @param cls closure unused
1472 * @param emsg NULL on success, or a printable error on failure
1474 static void churn_complete (void *cls, const char *emsg)
1476 struct FindPeerContext *find_peer_context = cls;
1477 struct PeerCount *peer_count;
1479 struct GNUNET_TESTING_Daemon *temp_daemon;
1480 struct TopologyIteratorContext *topo_ctx;
1481 struct GNUNET_TIME_Relative calc_timeout;
1486 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Ending test, churning of peers failed with error `%s'", emsg);
1487 GNUNET_SCHEDULER_add_now(&end_badly, (void *)emsg);
1492 * If we switched any peers on, we have to somehow force connect the new peer to
1493 * SOME bootstrap peer in the network. First schedule a task to find all peers
1494 * with no connections, then choose a random peer for each and connect them.
1496 if (find_peer_context != NULL)
1498 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "We have churned on some peers, so we must schedule find peer requests for them!\n");
1500 for (i = 0; i < num_peers; i ++)
1502 temp_daemon = GNUNET_TESTING_daemon_get(pg, i);
1503 if (GNUNET_YES == GNUNET_TESTING_daemon_running(temp_daemon))
1505 peer_count = GNUNET_malloc (sizeof(struct PeerCount));
1506 memcpy(&peer_count->peer_id, &temp_daemon->id, sizeof(struct GNUNET_PeerIdentity));
1507 GNUNET_assert(peer_count->count == 0);
1508 peer_count->heap_node = GNUNET_CONTAINER_heap_insert(find_peer_context->peer_min_heap, peer_count, peer_count->count);
1509 GNUNET_CONTAINER_multihashmap_put(find_peer_context->peer_hash, &temp_daemon->id.hashPubKey, peer_count, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
1513 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));
1514 GNUNET_SCHEDULER_add_delayed(DEFAULT_PEER_DISCONNECT_TIMEOUT, &schedule_churn_get_topology, find_peer_context);
1515 //GNUNET_TESTING_get_topology (pg, &count_peers_churn_cb, find_peer_context);
1519 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");
1520 if (dhtlog_handle != NULL)
1522 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
1523 topo_ctx->cont = &do_get;
1524 topo_ctx->cls = all_gets;
1525 topo_ctx->timeout = DEFAULT_GET_TIMEOUT;
1526 topo_ctx->peers_seen = GNUNET_CONTAINER_multihashmap_create(num_peers);
1527 calc_timeout = GNUNET_TIME_relative_add(DEFAULT_GET_TIMEOUT, all_get_timeout);
1528 calc_timeout = GNUNET_TIME_relative_add(calc_timeout, DEFAULT_TOPOLOGY_CAPTURE_TIMEOUT);
1529 calc_timeout = GNUNET_TIME_relative_add(calc_timeout, DEFAULT_PEER_DISCONNECT_TIMEOUT);
1530 die_task = GNUNET_SCHEDULER_add_delayed (calc_timeout,
1531 &end_badly, "from do gets (churn_complete)");
1532 GNUNET_SCHEDULER_add_delayed(DEFAULT_PEER_DISCONNECT_TIMEOUT, &capture_current_topology, topo_ctx);
1536 calc_timeout = GNUNET_TIME_relative_add(DEFAULT_GET_TIMEOUT, all_get_timeout);
1537 calc_timeout = GNUNET_TIME_relative_add(calc_timeout, DEFAULT_PEER_DISCONNECT_TIMEOUT);
1538 die_task = GNUNET_SCHEDULER_add_delayed (calc_timeout,
1539 &end_badly, "from do gets (churn_complete)");
1540 if (dhtlog_handle != NULL)
1541 dhtlog_handle->insert_round(DHT_ROUND_GET, rounds_finished);
1542 GNUNET_SCHEDULER_add_delayed(DEFAULT_PEER_DISCONNECT_TIMEOUT, &do_get, all_gets);
1548 * Decide how many peers to turn on or off in this round, make sure the
1549 * numbers actually make sense, then do so. This function sets in motion
1550 * churn, find peer requests for newly joined peers, and issuing get
1551 * requests once the new peers have done so.
1553 * @param cls closure (unused)
1554 * @param cls task context (unused)
1557 churn_peers (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1559 unsigned int count_running;
1560 unsigned int churn_up;
1561 unsigned int churn_down;
1562 struct GNUNET_TIME_Relative timeout;
1563 struct FindPeerContext *find_peer_context;
1565 churn_up = churn_down = 0;
1566 count_running = GNUNET_TESTING_daemons_running(pg);
1567 if (count_running > churn_array[current_churn_round])
1568 churn_down = count_running - churn_array[current_churn_round];
1569 else if (count_running < churn_array[current_churn_round])
1570 churn_up = churn_array[current_churn_round] - count_running;
1572 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Not churning any peers, topology unchanged.\n");
1574 if (churn_up > num_peers - count_running)
1576 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Churn file specified %u peers (up); only have %u!", churn_array[current_churn_round], num_peers);
1577 churn_up = num_peers - count_running;
1579 else if (churn_down > count_running)
1581 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Churn file specified %u peers (down); only have %u!", churn_array[current_churn_round], count_running);
1582 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "This will leave NO peers running (mistake in churn configuration?)!");
1583 churn_down = count_running;
1585 //timeout = GNUNET_TIME_relative_multiply(seconds_per_peer_start, churn_up > 0 ? churn_up : churn_down);
1586 //timeout = GNUNET_TIME_relative_multiply (seconds_per_peer_start, churn_up > 0 ? churn_up : churn_down);
1587 timeout = GNUNET_TIME_relative_multiply(DEFAULT_TIMEOUT, 2); /* FIXME: Lack of intelligent choice here */
1588 find_peer_context = NULL;
1589 if (churn_up > 0) /* Only need to do find peer requests if we turned new peers on */
1591 find_peer_context = GNUNET_malloc(sizeof(struct FindPeerContext));
1592 find_peer_context->count_peers_cb = &count_peers_churn_cb;
1593 find_peer_context->previous_peers = 0;
1594 find_peer_context->current_peers = 0;
1595 find_peer_context->endtime = GNUNET_TIME_relative_to_absolute(timeout);
1596 find_peer_context->peer_hash = GNUNET_CONTAINER_multihashmap_create(num_peers);
1597 find_peer_context->peer_min_heap = GNUNET_CONTAINER_heap_create(GNUNET_CONTAINER_HEAP_ORDER_MIN);
1599 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "churn_peers: want %u total, %u running, starting %u, stopping %u\n",
1600 churn_array[current_churn_round], count_running, churn_up, churn_down);
1601 GNUNET_TESTING_daemons_churn (pg, churn_down, churn_up, timeout, &churn_complete, find_peer_context);
1602 current_churn_round++;
1606 * Task to release DHT handle associated with GET request.
1609 get_stop_finished (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1611 struct TestGetContext *test_get = cls;
1612 struct TopologyIteratorContext *topo_ctx;
1614 /* The dht_handle may be null if this get was scheduled from a down peer */
1615 if (test_get->dht_handle != NULL)
1617 GNUNET_DHT_disconnect(test_get->dht_handle);
1618 outstanding_gets--; /* GET is really finished */
1619 test_get->dht_handle = NULL;
1622 /* Reset the uid (which item to search for) and the daemon (which peer to search from) for later get request iterations */
1623 if (get_from_same == GNUNET_NO)
1625 test_get->uid = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_puts);
1626 test_get->daemon = GNUNET_TESTING_daemon_get(pg, GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers));
1630 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "%d gets succeeded, %d gets failed!\n", gets_completed, gets_failed);
1632 update_meter(get_meter);
1633 if ((gets_completed + gets_failed == num_gets) && (outstanding_gets == 0))
1635 fprintf(stderr, "Canceling die task (get_stop_finished) %llu gets completed, %llu gets failed\n", gets_completed, gets_failed);
1636 GNUNET_SCHEDULER_cancel(die_task);
1637 reset_meter(put_meter);
1638 reset_meter(get_meter);
1641 * 1) Testing is completely finished, call the topology iteration dealy and die
1642 * 2) Testing is not finished, churn the network and do gets again (current_churn_round < churn_rounds)
1643 * 3) Testing is not finished, reschedule all the PUTS *and* GETS again (num_rounds > 1)
1645 if (rounds_finished == total_rounds - 1) /* Everything is finished, end testing */
1647 if (dhtlog_handle != NULL)
1649 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
1650 topo_ctx->cont = &log_dht_statistics;
1651 topo_ctx->peers_seen = GNUNET_CONTAINER_multihashmap_create(num_peers);
1652 GNUNET_SCHEDULER_add_now(&capture_current_topology, topo_ctx);
1655 GNUNET_SCHEDULER_add_now (&finish_testing, NULL);
1657 else if (current_churn_round < churns_per_round * (rounds_finished + 1)) /* Do next round of churn */
1659 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);
1663 if (dhtlog_handle != NULL)
1664 dhtlog_handle->insert_round(DHT_ROUND_CHURN, rounds_finished);
1666 GNUNET_SCHEDULER_add_now(&churn_peers, NULL);
1668 else if (rounds_finished < total_rounds - 1) /* Start a new complete round */
1673 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Round %u of %llu finished, scheduling next round.\n", rounds_finished, total_rounds);
1675 /** We reset the peer daemon for puts and gets on each disconnect, so all we need to do is start another round! */
1676 if (GNUNET_YES == in_dht_replication) /* Replication done in DHT, don't redo puts! */
1678 if (dhtlog_handle != NULL)
1679 dhtlog_handle->insert_round(DHT_ROUND_GET, rounds_finished);
1681 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),
1682 &end_badly, "from do gets (next round)");
1683 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, round_delay), &do_get, all_gets);
1687 if (dhtlog_handle != NULL)
1688 dhtlog_handle->insert_round(DHT_ROUND_NORMAL, rounds_finished);
1689 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)),
1690 &end_badly, "from do puts");
1691 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, round_delay), &do_put, all_puts);
1698 * Task to release get handle.
1701 get_stop_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1703 struct TestGetContext *test_get = cls;
1705 if (tc->reason == GNUNET_SCHEDULER_REASON_TIMEOUT)
1707 GNUNET_assert(test_get->get_handle != NULL);
1708 GNUNET_DHT_get_stop(test_get->get_handle);
1709 test_get->get_handle = NULL;
1710 test_get->disconnect_task = GNUNET_SCHEDULER_NO_TASK;
1711 GNUNET_SCHEDULER_add_now (&get_stop_finished, test_get);
1715 * Iterator called if the GET request initiated returns a response.
1717 * @param cls closure
1718 * @param exp when will this value expire
1719 * @param key key of the result
1720 * @param get_path NULL-terminated array of pointers
1721 * to the peers on reverse GET path (or NULL if not recorded)
1722 * @param put_path NULL-terminated array of pointers
1723 * to the peers on the PUT path (or NULL if not recorded)
1724 * @param type type of the result
1725 * @param size number of bytes in data
1726 * @param data pointer to the result data
1729 get_result_iterator (void *cls,
1730 struct GNUNET_TIME_Absolute exp,
1731 const GNUNET_HashCode * key,
1732 const struct GNUNET_PeerIdentity * const *get_path,
1733 const struct GNUNET_PeerIdentity * const *put_path,
1734 enum GNUNET_BLOCK_Type type,
1738 struct TestGetContext *test_get = cls;
1740 if (test_get->succeeded == GNUNET_YES)
1741 return; /* Get has already been successful, probably ending now */
1743 if (0 != memcmp(&known_keys[test_get->uid], key, sizeof (GNUNET_HashCode))) /* || (0 != memcmp(original_data, data, sizeof(original_data))))*/
1746 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Key or data is not the same as was inserted!\n");
1751 test_get->succeeded = GNUNET_YES;
1754 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Received correct GET response!\n");
1756 GNUNET_SCHEDULER_cancel(test_get->disconnect_task);
1757 GNUNET_SCHEDULER_add_continuation(&get_stop_task, test_get, GNUNET_SCHEDULER_REASON_PREREQ_DONE);
1763 * Set up some data, and call API PUT function
1766 do_get (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1768 struct TestGetContext *test_get = cls;
1772 GNUNET_SCHEDULER_cancel(die_task);
1773 GNUNET_SCHEDULER_add_now(&finish_testing, NULL);
1776 if (test_get == NULL)
1777 return; /* End of the list */
1779 /* Set this here in case we are re-running gets */
1780 test_get->succeeded = GNUNET_NO;
1782 if (GNUNET_YES != GNUNET_TESTING_daemon_running(test_get->daemon)) /* If the peer has been churned off, don't try issuing request from it! */
1784 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Peer we should issue get request from is down, skipping.\n");
1786 GNUNET_SCHEDULER_add_now (&get_stop_finished, test_get);
1787 GNUNET_SCHEDULER_add_now (&do_get, test_get->next);
1791 /* Check if more gets are outstanding than should be */
1792 if (outstanding_gets > max_outstanding_gets)
1794 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MILLISECONDS, 200), &do_get, test_get);
1798 /* Connect to the first peer's DHT */
1799 test_get->dht_handle = GNUNET_DHT_connect(test_get->daemon->cfg, 10);
1800 GNUNET_assert(test_get->dht_handle != NULL);
1803 /* Insert the data at the first peer */
1804 test_get->get_handle = GNUNET_DHT_get_start(test_get->dht_handle,
1806 GNUNET_BLOCK_TYPE_TEST,
1807 &known_keys[test_get->uid],
1812 &get_result_iterator,
1816 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Starting get for uid %u from peer %s\n",
1818 test_get->daemon->shortname);
1820 test_get->disconnect_task = GNUNET_SCHEDULER_add_delayed(get_timeout, &get_stop_task, test_get);
1822 /* Schedule the next request in the linked list of get requests */
1823 GNUNET_SCHEDULER_add_now (&do_get, test_get->next);
1827 * Called when the PUT request has been transmitted to the DHT service.
1828 * Schedule the GET request for some time in the future.
1831 put_finished (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1833 struct TestPutContext *test_put = cls;
1834 struct TopologyIteratorContext *topo_ctx;
1838 if (tc->reason == GNUNET_SCHEDULER_REASON_TIMEOUT)
1839 fprintf(stderr, "PUT Request failed!\n");
1841 /* Reset the daemon (which peer to insert at) for later put request iterations */
1842 if (replicate_same == GNUNET_NO)
1843 test_put->daemon = GNUNET_TESTING_daemon_get(pg, GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers));
1845 GNUNET_SCHEDULER_cancel(test_put->disconnect_task);
1846 test_put->disconnect_task = GNUNET_SCHEDULER_add_now(&put_disconnect_task, test_put);
1847 if (GNUNET_YES == update_meter(put_meter))
1849 GNUNET_assert(outstanding_puts == 0);
1850 GNUNET_SCHEDULER_cancel (die_task);
1851 if (dhtlog_handle != NULL)
1853 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
1854 topo_ctx->cont = &do_get;
1855 topo_ctx->cls = all_gets;
1856 topo_ctx->timeout = DEFAULT_GET_TIMEOUT;
1857 topo_ctx->peers_seen = GNUNET_CONTAINER_multihashmap_create(num_peers);
1858 die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_add(GNUNET_TIME_relative_add(DEFAULT_GET_TIMEOUT, all_get_timeout), DEFAULT_TOPOLOGY_CAPTURE_TIMEOUT),
1859 &end_badly, "from do gets (put finished)");
1860 GNUNET_SCHEDULER_add_now(&capture_current_topology, topo_ctx);
1864 fprintf(stderr, "Scheduling die task (put finished)\n");
1865 die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_add(DEFAULT_GET_TIMEOUT, all_get_timeout),
1866 &end_badly, "from do gets (put finished)");
1867 GNUNET_SCHEDULER_add_delayed(DEFAULT_GET_TIMEOUT, &do_get, all_gets);
1874 * Set up some data, and call API PUT function
1877 do_put (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1879 struct TestPutContext *test_put = cls;
1880 char data[test_data_size]; /* Made up data to store */
1884 if (test_put == NULL)
1885 return; /* End of list */
1887 if (GNUNET_YES != GNUNET_TESTING_daemon_running(test_put->daemon)) /* If the peer has been churned off, don't try issuing request from it! */
1889 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Peer we should issue put request at is down, skipping.\n");
1890 update_meter(put_meter);
1891 GNUNET_SCHEDULER_add_now (&do_put, test_put->next);
1895 for (i = 0; i < sizeof(data); i++)
1897 memset(&data[i], GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, UINT32_MAX), 1);
1900 if (outstanding_puts > max_outstanding_puts)
1902 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MILLISECONDS, 200), &do_put, test_put);
1907 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Starting put for uid %u from peer %s\n",
1909 test_put->daemon->shortname);
1911 test_put->dht_handle = GNUNET_DHT_connect(test_put->daemon->cfg, 10);
1913 GNUNET_assert(test_put->dht_handle != NULL);
1915 GNUNET_DHT_put(test_put->dht_handle,
1916 &known_keys[test_put->uid],
1919 GNUNET_BLOCK_TYPE_TEST,
1921 GNUNET_TIME_UNIT_FOREVER_ABS,
1923 &put_finished, test_put);
1924 test_put->disconnect_task = GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_get_forever(), &put_disconnect_task, test_put);
1925 rand = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, 2);
1926 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, rand), &do_put, test_put->next);
1930 schedule_find_peer_requests (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc);
1933 * Given a number of total peers and a bucket size, estimate the number of
1934 * connections in a perfect kademlia topology.
1936 static unsigned int connection_estimate(unsigned int peer_count, unsigned int bucket_size)
1939 unsigned int filled;
1943 while (i >= bucket_size)
1948 filled++; /* Add one filled bucket to account for one "half full" and some miscellaneous */
1949 return filled * bucket_size * peer_count;
1955 * Callback for iterating over all the peer connections of a peer group.
1958 count_peers_cb (void *cls,
1959 const struct GNUNET_PeerIdentity *first,
1960 const struct GNUNET_PeerIdentity *second,
1961 struct GNUNET_TIME_Relative latency,
1965 struct FindPeerContext *find_peer_context = cls;
1966 if ((first != NULL) && (second != NULL))
1968 add_new_connection(find_peer_context, first, second);
1969 find_peer_context->current_peers++;
1973 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Peer count finished (%u connections), %u new peers, connection estimate %u (double %u)\n",
1974 find_peer_context->current_peers,
1975 find_peer_context->current_peers - find_peer_context->previous_peers,
1976 connection_estimate(num_peers, DEFAULT_BUCKET_SIZE),
1977 2 * connection_estimate(num_peers, DEFAULT_BUCKET_SIZE));
1979 if ((find_peer_context->last_sent < 8) ||
1980 ((find_peer_context->current_peers - find_peer_context->previous_peers > FIND_PEER_THRESHOLD) &&
1981 (find_peer_context->current_peers < 2 * connection_estimate(num_peers, DEFAULT_BUCKET_SIZE)) &&
1982 (GNUNET_TIME_absolute_get_remaining(find_peer_context->endtime).rel_value > 0)))
1984 GNUNET_SCHEDULER_add_now(&schedule_find_peer_requests, find_peer_context);
1988 GNUNET_CONTAINER_multihashmap_iterate(find_peer_context->peer_hash, &remove_peer_count, find_peer_context);
1989 GNUNET_CONTAINER_multihashmap_destroy(find_peer_context->peer_hash);
1990 GNUNET_CONTAINER_heap_destroy(find_peer_context->peer_min_heap);
1991 GNUNET_free(find_peer_context);
1992 fprintf(stderr, "Not sending any more find peer requests.\n");
1999 * Set up a single find peer request for each peer in the topology. Do this
2000 * until the settle time is over, limited by the number of outstanding requests
2001 * and the time allowed for each one!
2004 schedule_find_peer_requests (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
2006 struct FindPeerContext *find_peer_ctx = cls;
2007 struct TestFindPeer *test_find_peer;
2008 struct PeerCount *peer_count;
2012 if (find_peer_ctx->previous_peers == 0) /* First time, go slowly */
2013 find_peer_ctx->total = 1;
2014 else if (find_peer_ctx->current_peers - find_peer_ctx->previous_peers > MAX_FIND_PEER_CUTOFF) /* Found LOTS of peers, still go slowly */
2015 find_peer_ctx->total = find_peer_ctx->last_sent - (find_peer_ctx->last_sent / 8);
2017 find_peer_ctx->total = find_peer_ctx->last_sent * 2;
2019 if (find_peer_ctx->total > max_outstanding_find_peers)
2020 find_peer_ctx->total = max_outstanding_find_peers;
2022 find_peer_ctx->last_sent = find_peer_ctx->total;
2023 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Sending %u find peer messages (goal at least %u connections)\n", find_peer_ctx->total, connection_estimate(num_peers, DEFAULT_BUCKET_SIZE));
2025 find_peer_offset = GNUNET_TIME_relative_divide(find_peer_delay, find_peer_ctx->total);
2026 for (i = 0; i < find_peer_ctx->total; i++)
2028 test_find_peer = GNUNET_malloc(sizeof(struct TestFindPeer));
2029 if (find_peer_ctx->previous_peers == 0) /* If we haven't sent any requests, yet choose random peers */
2032 * Attempt to spread find peer requests across even sections of the peer address
2033 * space. Choose basically 1 peer in every num_peers / max_outstanding_requests
2034 * each time, then offset it by a randomish value.
2036 * For instance, if num_peers is 100 and max_outstanding is 10, first chosen peer
2037 * will be between 0 - 10, second between 10 - 20, etc.
2039 random = (num_peers / find_peer_ctx->total) * i;
2040 random = random + GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, (num_peers / find_peer_ctx->total));
2041 if (random >= num_peers)
2043 random = random - num_peers;
2046 random = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers);
2048 test_find_peer->daemon = GNUNET_TESTING_daemon_get(pg, random);
2050 else /* If we have sent requests, choose peers with a low number of connections to send requests from */
2052 peer_count = GNUNET_CONTAINER_heap_remove_root(find_peer_ctx->peer_min_heap);
2053 GNUNET_assert(GNUNET_YES == GNUNET_CONTAINER_multihashmap_remove(find_peer_ctx->peer_hash, &peer_count->peer_id.hashPubKey, peer_count));
2054 test_find_peer->daemon = GNUNET_TESTING_daemon_get_by_id(pg, &peer_count->peer_id);
2055 GNUNET_assert(test_find_peer->daemon != NULL);
2058 test_find_peer->find_peer_context = find_peer_ctx;
2059 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_multiply(find_peer_offset, i), &send_find_peer_request, test_find_peer);
2062 if ((find_peer_ctx->peer_hash == NULL) && (find_peer_ctx->peer_min_heap == NULL))
2064 find_peer_ctx->peer_hash = GNUNET_CONTAINER_multihashmap_create(num_peers);
2065 find_peer_ctx->peer_min_heap = GNUNET_CONTAINER_heap_create(GNUNET_CONTAINER_HEAP_ORDER_MIN);
2069 GNUNET_CONTAINER_multihashmap_iterate(find_peer_ctx->peer_hash, &remove_peer_count, find_peer_ctx);
2070 GNUNET_CONTAINER_multihashmap_destroy(find_peer_ctx->peer_hash);
2071 find_peer_ctx->peer_hash = GNUNET_CONTAINER_multihashmap_create(num_peers);
2074 GNUNET_assert(0 == GNUNET_CONTAINER_multihashmap_size(find_peer_ctx->peer_hash));
2075 GNUNET_assert(0 == GNUNET_CONTAINER_heap_get_size(find_peer_ctx->peer_min_heap));
2080 * Set up some all of the put and get operations we want
2081 * to do. Allocate data structure for each, add to list,
2082 * then call actual insert functions.
2085 setup_puts_and_gets (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
2088 uint32_t temp_daemon;
2089 struct TestPutContext *test_put;
2090 struct TestGetContext *test_get;
2092 int remember[num_puts][num_peers];
2093 memset(&remember, 0, sizeof(int) * num_puts * num_peers);
2095 known_keys = GNUNET_malloc(sizeof(GNUNET_HashCode) * num_puts);
2096 for (i = 0; i < num_puts; i++)
2098 test_put = GNUNET_malloc(sizeof(struct TestPutContext));
2100 GNUNET_CRYPTO_hash_create_random (GNUNET_CRYPTO_QUALITY_WEAK, &known_keys[i]);
2101 temp_daemon = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers);
2102 test_put->daemon = GNUNET_TESTING_daemon_get(pg, temp_daemon);
2103 test_put->next = all_puts;
2104 all_puts = test_put;
2107 for (i = 0; i < num_gets; i++)
2109 test_get = GNUNET_malloc(sizeof(struct TestGetContext));
2110 test_get->uid = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_puts);
2112 while (remember[test_get->uid][temp_daemon] == 1)
2113 temp_daemon = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers);
2114 remember[test_get->uid][temp_daemon] = 1;
2116 test_get->daemon = GNUNET_TESTING_daemon_get(pg, GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers));
2117 test_get->next = all_gets;
2118 all_gets = test_get;
2121 /*GNUNET_SCHEDULER_cancel (die_task);*/
2122 die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, num_puts * 2),
2123 &end_badly, "from do puts");
2124 GNUNET_SCHEDULER_add_now (&do_put, all_puts);
2129 * Set up some all of the put and get operations we want
2130 * to do. Allocate data structure for each, add to list,
2131 * then call actual insert functions.
2134 continue_puts_and_gets (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
2138 struct TopologyIteratorContext *topo_ctx;
2139 struct FindPeerContext *find_peer_context;
2140 if (dhtlog_handle != NULL)
2142 if (settle_time >= 180 * 2)
2143 max = (settle_time / 180) - 2;
2146 for (i = 1; i < max; i++)
2148 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
2149 topo_ctx->current_iteration = i;
2150 topo_ctx->total_iterations = max;
2151 topo_ctx->peers_seen = GNUNET_CONTAINER_multihashmap_create(num_peers);
2152 //fprintf(stderr, "scheduled topology iteration in %d minutes\n", i);
2153 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MINUTES, i * 3), &capture_current_topology, topo_ctx);
2155 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
2156 topo_ctx->cont = &setup_puts_and_gets;
2157 topo_ctx->peers_seen = GNUNET_CONTAINER_multihashmap_create(num_peers);
2158 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, (settle_time + 90)), &capture_current_topology, topo_ctx);
2161 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, (settle_time + 90)), &setup_puts_and_gets, NULL);
2163 if (dhtlog_handle != NULL)
2164 dhtlog_handle->insert_round(DHT_ROUND_NORMAL, rounds_finished);
2166 if (GNUNET_YES == do_find_peer)
2168 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Scheduling find peer requests during \"settle\" time.\n");
2169 find_peer_context = GNUNET_malloc(sizeof(struct FindPeerContext));
2170 find_peer_context->count_peers_cb = &count_peers_cb;
2171 find_peer_context->endtime = GNUNET_TIME_relative_to_absolute(GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, settle_time));
2172 GNUNET_SCHEDULER_add_now(&schedule_find_peer_requests, find_peer_context);
2176 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Assuming automatic DHT find peer requests.\n");
2181 * Task to release DHT handles
2184 malicious_disconnect_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
2186 struct MaliciousContext *ctx = cls;
2187 outstanding_malicious--;
2188 malicious_completed++;
2189 ctx->disconnect_task = GNUNET_SCHEDULER_NO_TASK;
2190 GNUNET_DHT_disconnect(ctx->dht_handle);
2191 ctx->dht_handle = NULL;
2194 if (malicious_completed == malicious_getters + malicious_putters + malicious_droppers)
2196 GNUNET_SCHEDULER_cancel(die_task);
2197 fprintf(stderr, "Finished setting all malicious peers up, calling continuation!\n");
2198 if (dhtlog_handle != NULL)
2199 GNUNET_SCHEDULER_add_now (&continue_puts_and_gets, NULL);
2201 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, settle_time),
2202 &continue_puts_and_gets, NULL);
2208 * Task to release DHT handles
2211 malicious_done_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
2213 struct MaliciousContext *ctx = cls;
2214 GNUNET_SCHEDULER_cancel(ctx->disconnect_task);
2215 GNUNET_SCHEDULER_add_now(&malicious_disconnect_task, ctx);
2219 * Set up some data, and call API PUT function
2222 set_malicious (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
2224 struct MaliciousContext *ctx = cls;
2226 if (outstanding_malicious > DEFAULT_MAX_OUTSTANDING_GETS)
2228 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MILLISECONDS, 100), &set_malicious, ctx);
2232 if (ctx->dht_handle == NULL)
2234 ctx->dht_handle = GNUNET_DHT_connect(ctx->daemon->cfg, 1);
2235 outstanding_malicious++;
2238 GNUNET_assert(ctx->dht_handle != NULL);
2242 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Setting peer %s malicious type %d\n",
2243 ctx->daemon->shortname, ctx->malicious_type);
2246 switch (ctx->malicious_type)
2248 case GNUNET_MESSAGE_TYPE_DHT_MALICIOUS_GET:
2249 GNUNET_DHT_set_malicious_getter(ctx->dht_handle, malicious_get_frequency);
2250 GNUNET_SCHEDULER_add_now (&malicious_done_task, ctx);
2252 case GNUNET_MESSAGE_TYPE_DHT_MALICIOUS_PUT:
2253 GNUNET_DHT_set_malicious_putter(ctx->dht_handle, malicious_put_frequency);
2254 GNUNET_SCHEDULER_add_now (&malicious_done_task, ctx);
2256 case GNUNET_MESSAGE_TYPE_DHT_MALICIOUS_DROP:
2257 GNUNET_DHT_set_malicious_dropper(ctx->dht_handle);
2258 GNUNET_SCHEDULER_add_now (&malicious_done_task, ctx);
2264 ctx->disconnect_task = GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_UNIT_FOREVER_REL,
2265 &malicious_disconnect_task, ctx);
2269 * Select randomly from set of known peers,
2270 * set the desired number of peers to the
2271 * proper malicious types.
2274 setup_malicious_peers (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
2276 struct MaliciousContext *ctx;
2278 uint32_t temp_daemon;
2280 for (i = 0; i < malicious_getters; i++)
2282 ctx = GNUNET_malloc(sizeof(struct MaliciousContext));
2283 temp_daemon = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers);
2284 ctx->daemon = GNUNET_TESTING_daemon_get(pg, temp_daemon);
2285 ctx->malicious_type = GNUNET_MESSAGE_TYPE_DHT_MALICIOUS_GET;
2286 GNUNET_SCHEDULER_add_now (&set_malicious, ctx);
2290 for (i = 0; i < malicious_putters; i++)
2292 ctx = GNUNET_malloc(sizeof(struct MaliciousContext));
2293 temp_daemon = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers);
2294 ctx->daemon = GNUNET_TESTING_daemon_get(pg, temp_daemon);
2295 ctx->malicious_type = GNUNET_MESSAGE_TYPE_DHT_MALICIOUS_PUT;
2296 GNUNET_SCHEDULER_add_now (&set_malicious, ctx);
2300 for (i = 0; i < malicious_droppers; i++)
2302 ctx = GNUNET_malloc(sizeof(struct MaliciousContext));
2303 temp_daemon = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers);
2304 ctx->daemon = GNUNET_TESTING_daemon_get(pg, temp_daemon);
2305 ctx->malicious_type = GNUNET_MESSAGE_TYPE_DHT_MALICIOUS_DROP;
2306 GNUNET_SCHEDULER_add_now (&set_malicious, ctx);
2310 * If we have any malicious peers to set up,
2311 * the malicious callback should call continue_gets_and_puts
2313 if (malicious_getters + malicious_putters + malicious_droppers > 0)
2315 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Giving malicious set tasks some time before starting testing!\n");
2316 die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, (malicious_getters + malicious_putters + malicious_droppers) * 2),
2317 &end_badly, "from set malicious");
2319 else /* Otherwise, continue testing */
2321 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Scheduling continue_puts_and_gets now!\n");
2322 GNUNET_SCHEDULER_add_now (&continue_puts_and_gets, NULL);
2327 * This function is called whenever a connection attempt is finished between two of
2328 * the started peers (started with GNUNET_TESTING_daemons_start). The total
2329 * number of times this function is called should equal the number returned
2330 * from the GNUNET_TESTING_connect_topology call.
2332 * The emsg variable is NULL on success (peers connected), and non-NULL on
2333 * failure (peers failed to connect).
2336 topology_callback (void *cls,
2337 const struct GNUNET_PeerIdentity *first,
2338 const struct GNUNET_PeerIdentity *second,
2340 const struct GNUNET_CONFIGURATION_Handle *first_cfg,
2341 const struct GNUNET_CONFIGURATION_Handle *second_cfg,
2342 struct GNUNET_TESTING_Daemon *first_daemon,
2343 struct GNUNET_TESTING_Daemon *second_daemon,
2346 struct TopologyIteratorContext *topo_ctx;
2349 total_connections++;
2351 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "connected peer %s to peer %s, distance %u\n",
2352 first_daemon->shortname,
2353 second_daemon->shortname,
2359 failed_connections++;
2361 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Failed to connect peer %s to peer %s with error :\n%s\n",
2362 first_daemon->shortname,
2363 second_daemon->shortname, emsg);
2367 GNUNET_assert(peer_connect_meter != NULL);
2368 if (GNUNET_YES == update_meter(peer_connect_meter))
2371 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2372 "Created %d total connections, which is our target number! Starting next phase of testing.\n",
2375 if (dhtlog_handle != NULL)
2377 dhtlog_handle->update_connections (total_connections);
2378 dhtlog_handle->insert_topology(expected_connections);
2381 GNUNET_SCHEDULER_cancel (die_task);
2382 /*die_task = GNUNET_SCHEDULER_add_delayed (DEFAULT_TIMEOUT,
2383 &end_badly, "from setup puts/gets");*/
2384 if ((dhtlog_handle != NULL) && (settle_time > 0))
2386 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
2387 topo_ctx->cont = &setup_malicious_peers;
2388 topo_ctx->peers_seen = GNUNET_CONTAINER_multihashmap_create(num_peers);
2389 //topo_ctx->cont = &continue_puts_and_gets;
2390 GNUNET_SCHEDULER_add_now(&capture_current_topology, topo_ctx);
2394 GNUNET_SCHEDULER_add_now(&setup_malicious_peers, NULL);
2395 /*GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, settle_time),
2396 &continue_puts_and_gets, NULL);*/
2399 else if (total_connections + failed_connections == expected_connections)
2401 GNUNET_SCHEDULER_cancel (die_task);
2402 die_task = GNUNET_SCHEDULER_add_now (&end_badly, "from topology_callback (too many failed connections)");
2407 peers_started_callback (void *cls,
2408 const struct GNUNET_PeerIdentity *id,
2409 const struct GNUNET_CONFIGURATION_Handle *cfg,
2410 struct GNUNET_TESTING_Daemon *d, const char *emsg)
2414 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Failed to start daemon with error: `%s'\n",
2418 GNUNET_assert (id != NULL);
2421 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Started daemon %llu out of %llu\n",
2422 (num_peers - peers_left) + 1, num_peers);
2427 if (GNUNET_YES == update_meter(peer_start_meter))
2430 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2431 "All %d daemons started, now connecting peers!\n",
2434 GNUNET_SCHEDULER_cancel (die_task);
2436 expected_connections = UINT_MAX;
2437 if ((pg != NULL) && (peers_left == 0))
2439 expected_connections = GNUNET_TESTING_connect_topology (pg, connect_topology, connect_topology_option, connect_topology_option_modifier, NULL, NULL);
2441 peer_connect_meter = create_meter(expected_connections, "Peer connection ", GNUNET_YES);
2442 fprintf(stderr, "Have %d expected connections\n", expected_connections);
2445 if (expected_connections == GNUNET_SYSERR)
2447 die_task = GNUNET_SCHEDULER_add_now (&end_badly, "from connect topology (bad return)");
2450 die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, DEFAULT_CONNECT_TIMEOUT * expected_connections),
2451 &end_badly, "from connect topology (timeout)");
2460 peers_left = num_peers; /* Reset counter */
2461 if (GNUNET_TESTING_create_topology (pg, topology, blacklist_topology, blacklist_transports) != GNUNET_SYSERR)
2464 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2465 "Topology set up, now starting peers!\n");
2467 GNUNET_TESTING_daemons_continue_startup(pg);
2471 GNUNET_SCHEDULER_cancel (die_task);
2472 die_task = GNUNET_SCHEDULER_add_now (&end_badly, "from create topology (bad return)");
2474 GNUNET_free_non_null(blacklist_transports);
2475 GNUNET_SCHEDULER_cancel (die_task);
2476 die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(seconds_per_peer_start, num_peers),
2477 &end_badly, "from continue startup (timeout)");
2481 * Callback indicating that the hostkey was created for a peer.
2484 * @param id the peer identity
2485 * @param d the daemon handle (pretty useless at this point, remove?)
2486 * @param emsg non-null on failure
2489 hostkey_callback (void *cls,
2490 const struct GNUNET_PeerIdentity *id,
2491 struct GNUNET_TESTING_Daemon *d,
2496 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Hostkey callback received error: %s\n", emsg);
2500 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2501 "Hostkey (%d/%d) created for peer `%s'\n",
2502 num_peers - peers_left, num_peers, GNUNET_i2s(id));
2506 if (GNUNET_YES == update_meter(hostkey_meter))
2509 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2510 "All %d hostkeys created, now creating topology!\n",
2513 GNUNET_SCHEDULER_cancel (die_task);
2514 /* Set up task in case topology creation doesn't finish
2515 * within a reasonable amount of time */
2516 die_task = GNUNET_SCHEDULER_add_delayed (DEFAULT_TOPOLOGY_TIMEOUT,
2517 &end_badly, "from create_topology");
2518 GNUNET_SCHEDULER_add_now(&create_topology, NULL);
2527 const char *cfgfile, const struct GNUNET_CONFIGURATION_Handle *cfg)
2530 struct GNUNET_DHTLOG_TrialInfo trial_info;
2531 struct GNUNET_TESTING_Host *hosts;
2532 struct GNUNET_TESTING_Host *temphost;
2533 struct GNUNET_TESTING_Host *tempnext;
2535 char *connect_topology_str;
2536 char *blacklist_topology_str;
2537 char *connect_topology_option_str;
2538 char *connect_topology_option_modifier_string;
2540 char *topology_percentage_str;
2541 float topology_percentage;
2542 char *topology_probability_str;
2544 float topology_probability;
2545 unsigned long long temp_config_number;
2546 unsigned long long trial_to_run;
2549 int strict_kademlia;
2553 char *churn_filename;
2560 rounds_finished = 0;
2561 memset(&trial_info, 0, sizeof(struct GNUNET_DHTLOG_TrialInfo));
2562 /* Get path from configuration file */
2563 if (GNUNET_YES != GNUNET_CONFIGURATION_get_value_string(cfg, "paths", "servicehome", &test_directory))
2570 * Get DHT specific testing options.
2572 if ((GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht_testing", "mysql_logging")) ||
2573 (GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht_testing", "mysql_logging_extended")))
2575 dhtlog_handle = GNUNET_DHTLOG_connect(cfg);
2576 if (dhtlog_handle == NULL)
2578 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2579 "Could not connect to mysql server for logging, will NOT log dht operations!");
2585 stop_closest = GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht", "stop_on_closest");
2586 if (stop_closest == GNUNET_SYSERR)
2587 stop_closest = GNUNET_NO;
2589 stop_found = GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht", "stop_found");
2590 if (stop_found == GNUNET_SYSERR)
2591 stop_found = GNUNET_NO;
2593 strict_kademlia = GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht", "strict_kademlia");
2594 if (strict_kademlia == GNUNET_SYSERR)
2595 strict_kademlia = GNUNET_NO;
2598 GNUNET_CONFIGURATION_get_value_string (cfg, "dht_testing", "comment",
2600 trialmessage = NULL;
2603 /** Check for a churn file to do churny simulation */
2605 GNUNET_CONFIGURATION_get_value_string(cfg, "dht_testing", "churn_file",
2608 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Reading churn data from %s\n", churn_filename);
2609 if (GNUNET_OK != GNUNET_DISK_file_test (churn_filename))
2611 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Error reading churn file!\n");
2612 GNUNET_free_non_null(trialmessage);
2613 GNUNET_free(churn_filename);
2616 if ((0 != STAT (churn_filename, &frstat)) || (frstat.st_size == 0))
2618 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
2619 "Could not open file specified for churn data, ending test!");
2621 GNUNET_free_non_null(trialmessage);
2622 GNUNET_free(churn_filename);
2626 churn_data = GNUNET_malloc_large (frstat.st_size);
2627 GNUNET_assert(churn_data != NULL);
2628 if (frstat.st_size !=
2629 GNUNET_DISK_fn_read (churn_filename, churn_data, frstat.st_size))
2631 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
2632 "Could not read file %s specified for churn, ending test!", churn_filename);
2633 GNUNET_free (churn_filename);
2634 GNUNET_free (churn_data);
2635 GNUNET_free_non_null(trialmessage);
2639 GNUNET_free_non_null(churn_filename);
2643 /* Read the first line */
2644 while (count < frstat.st_size)
2647 if (((churn_data[count] == '\n')) && (buf != &churn_data[count]))
2649 churn_data[count] = '\0';
2650 if (1 != sscanf(buf, "%u", &churn_rounds))
2652 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Failed to read number of rounds from churn file, ending test!\n");
2654 GNUNET_free_non_null(trialmessage);
2655 GNUNET_free_non_null(churn_data);
2658 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Read %u rounds from churn file\n", churn_rounds);
2659 buf = &churn_data[count + 1];
2660 churn_array = GNUNET_malloc(sizeof(unsigned int) * churn_rounds);
2661 break; /* Done with this part */
2665 if (GNUNET_OK != GNUNET_CONFIGURATION_get_value_number(cfg, "dht_testing", "churns_per_round", &churns_per_round))
2667 churns_per_round = (unsigned long long)churn_rounds;
2671 while ((count < frstat.st_size) && (line_number < churn_rounds))
2674 if (((churn_data[count] == '\n')) && (buf != &churn_data[count]))
2676 churn_data[count] = '\0';
2678 ret = sscanf(buf, "%u", &churn_array[line_number]);
2681 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Read %u peers in round %u\n", churn_array[line_number], line_number);
2686 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Error reading line `%s' in hostfile\n", buf);
2687 buf = &churn_data[count + 1];
2690 buf = &churn_data[count + 1];
2692 else if (churn_data[count] == '\n') /* Blank line */
2693 buf = &churn_data[count + 1];
2696 GNUNET_free_non_null(churn_data);
2698 /** Check for a hostfile containing user@host:port triples */
2700 GNUNET_CONFIGURATION_get_value_string (cfg, "testing", "hostfile",
2706 if (hostfile != NULL)
2708 if (GNUNET_OK != GNUNET_DISK_file_test (hostfile))
2709 GNUNET_DISK_fn_write (hostfile, NULL, 0, GNUNET_DISK_PERM_USER_READ
2710 | GNUNET_DISK_PERM_USER_WRITE);
2711 if ((0 != STAT (hostfile, &frstat)) || (frstat.st_size == 0))
2713 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
2714 "Could not open file specified for host list, ending test!");
2716 GNUNET_free_non_null(trialmessage);
2717 GNUNET_free(hostfile);
2721 data = GNUNET_malloc_large (frstat.st_size);
2722 GNUNET_assert(data != NULL);
2723 if (frstat.st_size !=
2724 GNUNET_DISK_fn_read (hostfile, data, frstat.st_size))
2726 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
2727 "Could not read file %s specified for host list, ending test!", hostfile);
2728 GNUNET_free (hostfile);
2730 GNUNET_free_non_null(trialmessage);
2734 GNUNET_free_non_null(hostfile);
2738 while (count < frstat.st_size)
2741 /* if (((data[count] == '\n') || (data[count] == '\0')) && (buf != &data[count]))*/
2742 if (((data[count] == '\n')) && (buf != &data[count]))
2745 temphost = GNUNET_malloc(sizeof(struct GNUNET_TESTING_Host));
2746 ret = sscanf(buf, "%a[a-zA-Z0-9]@%a[a-zA-Z0-9.]:%hd", &temphost->username, &temphost->hostname, &temphost->port);
2749 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Successfully read host %s, port %d and user %s from file\n", temphost->hostname, temphost->port, temphost->username);
2753 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Error reading line `%s' in hostfile\n", buf);
2754 GNUNET_free(temphost);
2755 buf = &data[count + 1];
2758 /* temphost->hostname = buf; */
2759 temphost->next = hosts;
2761 buf = &data[count + 1];
2763 else if ((data[count] == '\n') || (data[count] == '\0'))
2764 buf = &data[count + 1];
2769 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "malicious_getters",
2770 &malicious_getters))
2771 malicious_getters = 0;
2774 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "malicious_putters",
2775 &malicious_putters))
2776 malicious_putters = 0;
2779 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "malicious_droppers",
2780 &malicious_droppers))
2781 malicious_droppers = 0;
2784 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "settle_time",
2788 if (GNUNET_SYSERR ==
2789 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "num_puts",
2791 num_puts = num_peers;
2793 if (GNUNET_SYSERR ==
2794 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "put_replication",
2796 put_replication = DEFAULT_PUT_REPLICATION;
2798 if (GNUNET_SYSERR ==
2799 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "num_gets",
2801 num_gets = num_peers;
2803 if (GNUNET_SYSERR ==
2804 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "get_replication",
2806 get_replication = DEFAULT_GET_REPLICATION;
2809 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "find_peer_delay",
2810 &temp_config_number))
2811 find_peer_delay = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_config_number);
2813 find_peer_delay = DEFAULT_FIND_PEER_DELAY;
2816 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "concurrent_find_peers",
2817 &temp_config_number))
2818 max_outstanding_find_peers = temp_config_number;
2820 max_outstanding_find_peers = DEFAULT_MAX_OUTSTANDING_FIND_PEERS;
2823 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "get_timeout",
2824 &temp_config_number))
2825 get_timeout = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_config_number);
2827 get_timeout = DEFAULT_GET_TIMEOUT;
2830 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "concurrent_puts",
2831 &temp_config_number))
2832 max_outstanding_puts = temp_config_number;
2834 max_outstanding_puts = DEFAULT_MAX_OUTSTANDING_PUTS;
2837 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "concurrent_gets",
2838 &temp_config_number))
2839 max_outstanding_gets = temp_config_number;
2841 max_outstanding_gets = DEFAULT_MAX_OUTSTANDING_GETS;
2844 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "timeout",
2845 &temp_config_number))
2846 all_get_timeout = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_config_number);
2848 all_get_timeout.rel_value = get_timeout.rel_value * num_gets;
2851 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "get_delay",
2852 &temp_config_number))
2853 get_delay = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_config_number);
2855 get_delay = DEFAULT_GET_DELAY;
2858 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "put_delay",
2859 &temp_config_number))
2860 put_delay = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_config_number);
2862 put_delay = DEFAULT_PUT_DELAY;
2865 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "peer_start_timeout",
2866 &temp_config_number))
2867 seconds_per_peer_start = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_config_number);
2869 seconds_per_peer_start = DEFAULT_SECONDS_PER_PEER_START;
2872 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "data_size",
2873 &temp_config_number))
2874 test_data_size = temp_config_number;
2876 test_data_size = DEFAULT_TEST_DATA_SIZE;
2879 * Get testing related options.
2881 if (GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno(cfg, "DHT_TESTING", "REPLICATE_SAME"))
2882 replicate_same = GNUNET_YES;
2885 * Get testing related options.
2887 if (GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno(cfg, "DHT_TESTING", "GET_FROM_SAME"))
2888 get_from_same = GNUNET_YES;
2891 if (GNUNET_NO == GNUNET_CONFIGURATION_get_value_time (cfg, "DHT_TESTING",
2892 "MALICIOUS_GET_FREQUENCY",
2893 &malicious_get_frequency))
2894 malicious_get_frequency = DEFAULT_MALICIOUS_GET_FREQUENCY;
2897 if (GNUNET_NO == GNUNET_CONFIGURATION_get_value_time (cfg, "DHT_TESTING",
2898 "MALICIOUS_PUT_FREQUENCY",
2899 &malicious_put_frequency))
2900 malicious_put_frequency = DEFAULT_MALICIOUS_PUT_FREQUENCY;
2903 /* The normal behavior of the DHT is to do find peer requests
2904 * on its own. Only if this is explicitly turned off should
2905 * the testing driver issue find peer requests (even though
2906 * this is likely the default when testing).
2909 GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht",
2912 do_find_peer = GNUNET_YES;
2916 GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht",
2919 in_dht_replication = GNUNET_YES;
2922 if (GNUNET_YES != GNUNET_CONFIGURATION_get_value_number (cfg, "DHT_TESTING",
2929 if (GNUNET_YES == GNUNET_CONFIGURATION_get_value_number (cfg, "DHT_TESTING",
2931 &temp_config_number))
2933 find_peer_delay = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_config_number);
2936 find_peer_delay = DEFAULT_FIND_PEER_DELAY;
2938 if (GNUNET_YES != GNUNET_CONFIGURATION_get_value_number(cfg, "DHT_TESTING", "ROUND_DELAY", &round_delay))
2941 if (GNUNET_NO == GNUNET_CONFIGURATION_get_value_number (cfg, "DHT_TESTING",
2942 "OUTSTANDING_FIND_PEERS",
2943 &max_outstanding_find_peers))
2944 max_outstanding_find_peers = DEFAULT_MAX_OUTSTANDING_FIND_PEERS;
2946 if (GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht", "strict_kademlia"))
2947 max_outstanding_find_peers = max_outstanding_find_peers * 1;
2949 find_peer_offset = GNUNET_TIME_relative_divide (find_peer_delay, max_outstanding_find_peers);
2951 if (GNUNET_SYSERR ==
2952 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "num_rounds",
2958 topology_str = NULL;
2960 GNUNET_CONFIGURATION_get_value_string(cfg, "testing", "topology",
2961 &topology_str)) && (GNUNET_NO == GNUNET_TESTING_topology_get(&topology, topology_str)))
2963 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2964 "Invalid topology `%s' given for section %s option %s\n", topology_str, "TESTING", "TOPOLOGY");
2965 topology = GNUNET_TESTING_TOPOLOGY_CLIQUE; /* Defaults to NONE, so set better default here */
2969 GNUNET_CONFIGURATION_get_value_string (cfg, "testing", "percentage",
2970 &topology_percentage_str))
2971 topology_percentage = 0.5;
2974 topology_percentage = atof (topology_percentage_str);
2975 GNUNET_free(topology_percentage_str);
2979 GNUNET_CONFIGURATION_get_value_string (cfg, "testing", "probability",
2980 &topology_probability_str))
2981 topology_probability = 0.5;
2984 topology_probability = atof (topology_probability_str);
2985 GNUNET_free(topology_probability_str);
2989 GNUNET_CONFIGURATION_get_value_string(cfg, "testing", "connect_topology",
2990 &connect_topology_str)) && (GNUNET_NO == GNUNET_TESTING_topology_get(&connect_topology, connect_topology_str)))
2992 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2993 "Invalid connect topology `%s' given for section %s option %s\n", connect_topology_str, "TESTING", "CONNECT_TOPOLOGY");
2995 GNUNET_free_non_null(connect_topology_str);
2998 GNUNET_CONFIGURATION_get_value_string(cfg, "testing", "connect_topology_option",
2999 &connect_topology_option_str)) && (GNUNET_NO == GNUNET_TESTING_topology_option_get(&connect_topology_option, connect_topology_option_str)))
3001 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
3002 "Invalid connect topology option `%s' given for section %s option %s\n", connect_topology_option_str, "TESTING", "CONNECT_TOPOLOGY_OPTION");
3003 connect_topology_option = GNUNET_TESTING_TOPOLOGY_OPTION_ALL; /* Defaults to NONE, set to ALL */
3005 GNUNET_free_non_null(connect_topology_option_str);
3008 GNUNET_CONFIGURATION_get_value_string (cfg, "testing", "connect_topology_option_modifier",
3009 &connect_topology_option_modifier_string))
3011 if (sscanf(connect_topology_option_modifier_string, "%lf", &connect_topology_option_modifier) != 1)
3013 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
3014 _("Invalid value `%s' for option `%s' in section `%s': expected float\n"),
3015 connect_topology_option_modifier_string,
3016 "connect_topology_option_modifier",
3019 GNUNET_free (connect_topology_option_modifier_string);
3022 if (GNUNET_YES != GNUNET_CONFIGURATION_get_value_string (cfg, "testing", "blacklist_transports",
3023 &blacklist_transports))
3024 blacklist_transports = NULL;
3027 GNUNET_CONFIGURATION_get_value_string(cfg, "testing", "blacklist_topology",
3028 &blacklist_topology_str)) &&
3029 (GNUNET_NO == GNUNET_TESTING_topology_get(&blacklist_topology, blacklist_topology_str)))
3031 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
3032 "Invalid topology `%s' given for section %s option %s\n", topology_str, "TESTING", "BLACKLIST_TOPOLOGY");
3034 GNUNET_free_non_null(topology_str);
3035 GNUNET_free_non_null(blacklist_topology_str);
3037 /* Get number of peers to start from configuration */
3038 if (GNUNET_SYSERR ==
3039 GNUNET_CONFIGURATION_get_value_number (cfg, "testing", "num_peers",
3042 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
3043 "Number of peers must be specified in section %s option %s\n", "TESTING", "NUM_PEERS");
3045 GNUNET_assert(num_peers > 0 && num_peers < ULONG_MAX);
3046 /* Set peers_left so we know when all peers started */
3047 peers_left = num_peers;
3050 /* Set up a task to end testing if peer start fails */
3051 die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(seconds_per_peer_start, num_peers),
3052 &end_badly, "didn't generate all hostkeys within allowed startup time!");
3054 if (dhtlog_handle == NULL)
3055 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
3056 "dhtlog_handle is NULL!");
3058 trial_info.other_identifier = (unsigned int)trial_to_run;
3059 trial_info.num_nodes = peers_left;
3060 trial_info.topology = topology;
3061 trial_info.blacklist_topology = blacklist_topology;
3062 trial_info.connect_topology = connect_topology;
3063 trial_info.connect_topology_option = connect_topology_option;
3064 trial_info.connect_topology_option_modifier = connect_topology_option_modifier;
3065 trial_info.topology_percentage = topology_percentage;
3066 trial_info.topology_probability = topology_probability;
3067 trial_info.puts = num_puts;
3068 trial_info.gets = num_gets;
3069 trial_info.concurrent = max_outstanding_gets;
3070 trial_info.settle_time = settle_time;
3071 trial_info.num_rounds = 1;
3072 trial_info.malicious_getters = malicious_getters;
3073 trial_info.malicious_putters = malicious_putters;
3074 trial_info.malicious_droppers = malicious_droppers;
3075 trial_info.malicious_get_frequency = malicious_get_frequency.rel_value;
3076 trial_info.malicious_put_frequency = malicious_put_frequency.rel_value;
3077 trial_info.stop_closest = stop_closest;
3078 trial_info.stop_found = stop_found;
3079 trial_info.strict_kademlia = strict_kademlia;
3081 if (trialmessage != NULL)
3082 trial_info.message = trialmessage;
3084 trial_info.message = "";
3086 if (dhtlog_handle != NULL)
3087 dhtlog_handle->insert_trial(&trial_info);
3089 GNUNET_free_non_null(trialmessage);
3091 hostkey_meter = create_meter(peers_left, "Hostkeys created ", GNUNET_YES);
3092 peer_start_meter = create_meter(peers_left, "Peers started ", GNUNET_YES);
3094 put_meter = create_meter(num_puts, "Puts completed ", GNUNET_YES);
3095 get_meter = create_meter(num_gets, "Gets completed ", GNUNET_YES);
3096 pg = GNUNET_TESTING_daemons_start (cfg,
3098 GNUNET_TIME_relative_multiply(seconds_per_peer_start, num_peers),
3099 &hostkey_callback, NULL,
3100 &peers_started_callback, NULL,
3101 &topology_callback, NULL,
3104 while (temphost != NULL)
3106 tempnext = temphost->next;
3107 GNUNET_free (temphost->username);
3108 GNUNET_free (temphost->hostname);
3109 GNUNET_free (temphost);
3110 temphost = tempnext;
3115 main (int argc, char *argv[])
3118 struct GNUNET_GETOPT_CommandLineOption options[] = {
3119 GNUNET_GETOPT_OPTION_END
3122 ret = GNUNET_PROGRAM_run (argc,
3123 argv, "gnunet-dht-driver", "nohelp",
3124 options, &run, &ok);
3126 if (ret != GNUNET_OK)
3128 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "`gnunet-dht-driver': Failed with error code %d\n", ret);
3132 * Need to remove base directory, subdirectories taken care
3133 * of by the testing framework.
3135 if (GNUNET_DISK_directory_remove (test_directory) != GNUNET_OK)
3137 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Failed to remove testing directory %s\n", test_directory);
3142 /* end of gnunet-dht-driver.c */