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,
859 struct TopologyIteratorContext *topo_ctx = cls;
860 if ((first != NULL) && (second != NULL))
862 if ((topo_ctx->peers_seen != NULL) && (GNUNET_NO == GNUNET_CONTAINER_multihashmap_contains(topo_ctx->peers_seen, &first->hashPubKey)))
864 GNUNET_CONTAINER_multihashmap_put(topo_ctx->peers_seen, &first->hashPubKey, NULL, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
865 topo_ctx->total_peers++;
867 topo_ctx->total_connections++;
868 if (GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno(config, "dht_testing", "mysql_logging"))
869 dhtlog_handle->insert_extended_topology(first, second);
873 GNUNET_assert(dhtlog_handle != NULL);
874 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);
875 dhtlog_handle->update_topology(topo_ctx->total_connections);
876 if (topo_ctx->cont != NULL)
877 GNUNET_SCHEDULER_add_now (topo_ctx->cont, topo_ctx->cls);
878 if (topo_ctx->peers_seen != NULL)
879 GNUNET_CONTAINER_multihashmap_destroy(topo_ctx->peers_seen);
880 GNUNET_free(topo_ctx);
885 * Iterator over hash map entries.
887 * @param cls closure - always NULL
888 * @param key current key code
889 * @param value value in the hash map, a stats context
890 * @return GNUNET_YES if we should continue to
894 static int stats_iterate (void *cls,
895 const GNUNET_HashCode * key,
898 struct StatisticsIteratorContext *stats_ctx;
902 dhtlog_handle->insert_stat(stats_ctx->peer, stats_ctx->stat_routes, stats_ctx->stat_route_forwards, stats_ctx->stat_results,
903 stats_ctx->stat_results_to_client, stats_ctx->stat_result_forwards, stats_ctx->stat_gets,
904 stats_ctx->stat_puts, stats_ctx->stat_puts_inserted, stats_ctx->stat_find_peer,
905 stats_ctx->stat_find_peer_start, stats_ctx->stat_get_start, stats_ctx->stat_put_start,
906 stats_ctx->stat_find_peer_reply, stats_ctx->stat_get_reply, stats_ctx->stat_find_peer_answer,
907 stats_ctx->stat_get_response_start);
908 GNUNET_free(stats_ctx);
913 stats_finished (void *cls, int result)
915 fprintf(stderr, "Finished getting all peers statistics, iterating!\n");
916 GNUNET_CONTAINER_multihashmap_iterate(stats_map, &stats_iterate, NULL);
917 GNUNET_CONTAINER_multihashmap_destroy(stats_map);
918 GNUNET_SCHEDULER_add_now (&finish_testing, NULL);
922 * Callback function to process statistic values.
925 * @param peer the peer the statistics belong to
926 * @param subsystem name of subsystem that created the statistic
927 * @param name the name of the datum
928 * @param value the current value
929 * @param is_persistent GNUNET_YES if the value is persistent, GNUNET_NO if not
930 * @return GNUNET_OK to continue, GNUNET_SYSERR to abort iteration
932 static int stats_handle (void *cls,
933 const struct GNUNET_PeerIdentity *peer,
934 const char *subsystem,
939 struct StatisticsIteratorContext *stats_ctx;
941 if (dhtlog_handle != NULL)
942 dhtlog_handle->add_generic_stat(peer, name, subsystem, value);
943 if (GNUNET_CONTAINER_multihashmap_contains(stats_map, &peer->hashPubKey))
945 stats_ctx = GNUNET_CONTAINER_multihashmap_get(stats_map, &peer->hashPubKey);
949 stats_ctx = GNUNET_malloc(sizeof(struct StatisticsIteratorContext));
950 stats_ctx->peer = peer;
951 GNUNET_CONTAINER_multihashmap_put(stats_map, &peer->hashPubKey, stats_ctx, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
953 GNUNET_assert(stats_ctx != NULL);
955 if (strcmp(name, STAT_ROUTES) == 0)
956 stats_ctx->stat_routes = value;
957 else if (strcmp(name, STAT_ROUTE_FORWARDS) == 0)
958 stats_ctx->stat_route_forwards = value;
959 else if (strcmp(name, STAT_RESULTS) == 0)
960 stats_ctx->stat_results = value;
961 else if (strcmp(name, STAT_RESULTS_TO_CLIENT) == 0)
962 stats_ctx->stat_results_to_client = value;
963 else if (strcmp(name, STAT_RESULT_FORWARDS) == 0)
964 stats_ctx->stat_result_forwards = value;
965 else if (strcmp(name, STAT_GETS) == 0)
966 stats_ctx->stat_gets = value;
967 else if (strcmp(name, STAT_PUTS) == 0)
968 stats_ctx->stat_puts = value;
969 else if (strcmp(name, STAT_PUTS_INSERTED) == 0)
970 stats_ctx->stat_puts_inserted = value;
971 else if (strcmp(name, STAT_FIND_PEER) == 0)
972 stats_ctx->stat_find_peer = value;
973 else if (strcmp(name, STAT_FIND_PEER_START) == 0)
974 stats_ctx->stat_find_peer_start = value;
975 else if (strcmp(name, STAT_GET_START) == 0)
976 stats_ctx->stat_get_start = value;
977 else if (strcmp(name, STAT_PUT_START) == 0)
978 stats_ctx->stat_put_start = value;
979 else if (strcmp(name, STAT_FIND_PEER_REPLY) == 0)
980 stats_ctx->stat_find_peer_reply = value;
981 else if (strcmp(name, STAT_GET_REPLY) == 0)
982 stats_ctx->stat_get_reply = value;
983 else if (strcmp(name, STAT_FIND_PEER_ANSWER) == 0)
984 stats_ctx->stat_find_peer_answer = value;
985 else if (strcmp(name, STAT_GET_RESPONSE_START) == 0)
986 stats_ctx->stat_get_response_start = value;
992 * Connect to statistics service for each peer and get the appropriate
993 * dht statistics for safe keeping.
996 log_dht_statistics (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
998 stats_map = GNUNET_CONTAINER_multihashmap_create(num_peers);
999 fprintf(stderr, "Starting statistics logging\n");
1000 GNUNET_TESTING_get_statistics(pg, &stats_finished, &stats_handle, NULL);
1005 * Connect to all peers in the peer group and iterate over their
1009 capture_current_topology (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1011 struct TopologyIteratorContext *topo_ctx = cls;
1012 dhtlog_handle->insert_topology(0);
1013 GNUNET_TESTING_get_topology (pg, &log_topology_cb, topo_ctx);
1018 * Check if the get_handle is being used, if so stop the request. Either
1019 * way, schedule the end_badly_cont function which actually shuts down the
1023 end_badly (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1025 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Failing test with error: `%s'!\n", (char *)cls);
1027 struct TestPutContext *test_put = all_puts;
1028 struct TestGetContext *test_get = all_gets;
1030 while (test_put != NULL)
1032 if (test_put->disconnect_task != GNUNET_SCHEDULER_NO_TASK)
1033 GNUNET_SCHEDULER_cancel(test_put->disconnect_task);
1034 if (test_put->dht_handle != NULL)
1035 GNUNET_DHT_disconnect(test_put->dht_handle);
1036 test_put = test_put->next;
1039 while (test_get != NULL)
1041 if (test_get->disconnect_task != GNUNET_SCHEDULER_NO_TASK)
1042 GNUNET_SCHEDULER_cancel(test_get->disconnect_task);
1043 if (test_get->get_handle != NULL)
1044 GNUNET_DHT_get_stop(test_get->get_handle);
1045 if (test_get->dht_handle != NULL)
1046 GNUNET_DHT_disconnect(test_get->dht_handle);
1047 test_get = test_get->next;
1050 GNUNET_TESTING_daemons_stop (pg, DEFAULT_TIMEOUT, &shutdown_callback, NULL);
1052 if (dhtlog_handle != NULL)
1054 fprintf(stderr, "Update trial endtime\n");
1055 dhtlog_handle->update_trial (gets_completed);
1056 GNUNET_DHTLOG_disconnect(dhtlog_handle);
1057 dhtlog_handle = NULL;
1060 if (hostkey_meter != NULL)
1061 free_meter(hostkey_meter);
1062 if (peer_start_meter != NULL)
1063 free_meter(peer_start_meter);
1064 if (peer_connect_meter != NULL)
1065 free_meter(peer_connect_meter);
1066 if (put_meter != NULL)
1067 free_meter(put_meter);
1068 if (get_meter != NULL)
1069 free_meter(get_meter);
1075 * Forward declaration.
1078 do_put (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc);
1081 * Forward declaration.
1084 do_get (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc);
1087 * Iterator over hash map entries.
1089 * @param cls closure
1090 * @param key current key code
1091 * @param value value in the hash map
1092 * @return GNUNET_YES if we should continue to
1096 static int remove_peer_count (void *cls,
1097 const GNUNET_HashCode * key,
1100 struct FindPeerContext *find_peer_ctx = cls;
1101 struct PeerCount *peer_count = value;
1102 GNUNET_CONTAINER_heap_remove_node(find_peer_ctx->peer_min_heap, peer_count->heap_node);
1103 GNUNET_free(peer_count);
1109 * Connect to all peers in the peer group and iterate over their
1113 count_new_peers (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1115 struct FindPeerContext *find_peer_context = cls;
1116 find_peer_context->previous_peers = find_peer_context->current_peers;
1117 find_peer_context->current_peers = 0;
1118 GNUNET_TESTING_get_topology (pg, find_peer_context->count_peers_cb, find_peer_context);
1122 decrement_find_peers (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1124 struct TestFindPeer *test_find_peer = cls;
1125 GNUNET_assert(test_find_peer->find_peer_context->outstanding > 0);
1126 test_find_peer->find_peer_context->outstanding--;
1127 test_find_peer->find_peer_context->total--;
1128 if ((0 == test_find_peer->find_peer_context->total) &&
1129 (GNUNET_TIME_absolute_get_remaining(test_find_peer->find_peer_context->endtime).rel_value > 60))
1131 GNUNET_SCHEDULER_add_now(&count_new_peers, test_find_peer->find_peer_context);
1133 GNUNET_free(test_find_peer);
1137 * A find peer request has been sent to the server, now we will schedule a task
1138 * to wait the appropriate time to allow the request to go out and back.
1140 * @param cls closure - a TestFindPeer struct
1141 * @param tc context the task is being called with
1144 handle_find_peer_sent (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1146 struct TestFindPeer *test_find_peer = cls;
1148 GNUNET_DHT_disconnect(test_find_peer->dht_handle);
1149 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_divide(find_peer_delay, 2), &decrement_find_peers, test_find_peer);
1154 send_find_peer_request (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1156 struct TestFindPeer *test_find_peer = cls;
1158 if (test_find_peer->find_peer_context->outstanding > max_outstanding_find_peers)
1160 GNUNET_SCHEDULER_add_delayed(find_peer_offset, &send_find_peer_request, test_find_peer);
1164 test_find_peer->find_peer_context->outstanding++;
1165 if (GNUNET_TIME_absolute_get_remaining(test_find_peer->find_peer_context->endtime).rel_value == 0)
1167 GNUNET_SCHEDULER_add_now(&decrement_find_peers, test_find_peer);
1171 test_find_peer->dht_handle = GNUNET_DHT_connect(test_find_peer->daemon->cfg, 1);
1172 GNUNET_assert(test_find_peer->dht_handle != NULL);
1173 GNUNET_DHT_find_peers (test_find_peer->dht_handle,
1174 &handle_find_peer_sent, test_find_peer);
1179 * Add a connection to the find_peer_context given. This may
1180 * be complete overkill, but allows us to choose the peers with
1181 * the least connections to initiate find peer requests from.
1183 static void add_new_connection(struct FindPeerContext *find_peer_context,
1184 const struct GNUNET_PeerIdentity *first,
1185 const struct GNUNET_PeerIdentity *second)
1187 struct PeerCount *first_count;
1188 struct PeerCount *second_count;
1190 if (GNUNET_CONTAINER_multihashmap_contains(find_peer_context->peer_hash, &first->hashPubKey))
1192 first_count = GNUNET_CONTAINER_multihashmap_get(find_peer_context->peer_hash, &first->hashPubKey);
1193 GNUNET_assert(first_count != NULL);
1194 first_count->count++;
1195 GNUNET_CONTAINER_heap_update_cost(find_peer_context->peer_min_heap, first_count->heap_node, first_count->count);
1199 first_count = GNUNET_malloc(sizeof(struct PeerCount));
1200 first_count->count = 1;
1201 memcpy(&first_count->peer_id, first, sizeof(struct GNUNET_PeerIdentity));
1202 first_count->heap_node = GNUNET_CONTAINER_heap_insert(find_peer_context->peer_min_heap, first_count, first_count->count);
1203 GNUNET_CONTAINER_multihashmap_put(find_peer_context->peer_hash, &first->hashPubKey, first_count, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
1206 if (GNUNET_CONTAINER_multihashmap_contains(find_peer_context->peer_hash, &second->hashPubKey))
1208 second_count = GNUNET_CONTAINER_multihashmap_get(find_peer_context->peer_hash, &second->hashPubKey);
1209 GNUNET_assert(second_count != NULL);
1210 second_count->count++;
1211 GNUNET_CONTAINER_heap_update_cost(find_peer_context->peer_min_heap, second_count->heap_node, second_count->count);
1215 second_count = GNUNET_malloc(sizeof(struct PeerCount));
1216 second_count->count = 1;
1217 memcpy(&second_count->peer_id, second, sizeof(struct GNUNET_PeerIdentity));
1218 second_count->heap_node = GNUNET_CONTAINER_heap_insert(find_peer_context->peer_min_heap, second_count, second_count->count);
1219 GNUNET_CONTAINER_multihashmap_put(find_peer_context->peer_hash, &second->hashPubKey, second_count, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
1225 * Iterate over min heap of connections per peer. For any
1226 * peer that has 0 connections, attempt to connect them to
1229 * @param cls closure a struct FindPeerContext
1230 * @param node internal node of the heap
1231 * @param element value stored, a struct PeerCount
1232 * @param cost cost associated with the node
1233 * @return GNUNET_YES if we should continue to iterate,
1236 static int iterate_min_heap_peers (void *cls,
1237 struct GNUNET_CONTAINER_HeapNode *node,
1239 GNUNET_CONTAINER_HeapCostType cost)
1241 struct FindPeerContext *find_peer_context = cls;
1242 struct PeerCount *peer_count = element;
1243 struct GNUNET_TESTING_Daemon *d1;
1244 struct GNUNET_TESTING_Daemon *d2;
1245 struct GNUNET_TIME_Relative timeout;
1248 d1 = GNUNET_TESTING_daemon_get_by_id (pg, &peer_count->peer_id);
1249 GNUNET_assert(d1 != NULL);
1251 while ((d2 == d1) || (GNUNET_YES != GNUNET_TESTING_daemon_running(d2)))
1253 d2 = GNUNET_TESTING_daemon_get(pg, GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers));
1254 GNUNET_assert(d2 != NULL);
1257 /** Just try to connect the peers, don't worry about callbacks, etc. **/
1258 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);
1259 timeout = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, DEFAULT_CONNECT_TIMEOUT);
1260 if (GNUNET_TIME_relative_to_absolute(timeout).abs_value > find_peer_context->endtime.abs_value)
1262 timeout = GNUNET_TIME_absolute_get_remaining(find_peer_context->endtime);
1264 GNUNET_TESTING_daemons_connect(d1, d2, timeout, DEFAULT_RECONNECT_ATTEMPTS, NULL, NULL);
1266 if (GNUNET_TIME_absolute_get_remaining(find_peer_context->endtime).rel_value > 0)
1273 * Forward declaration.
1276 schedule_churn_find_peer_requests (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc);
1279 * Callback for iterating over all the peer connections of a peer group.
1280 * Used after we have churned on some peers to find which ones have zero
1281 * connections so we can make them issue find peer requests.
1284 count_peers_churn_cb (void *cls,
1285 const struct GNUNET_PeerIdentity *first,
1286 const struct GNUNET_PeerIdentity *second,
1289 struct FindPeerContext *find_peer_context = cls;
1290 struct TopologyIteratorContext *topo_ctx;
1291 struct PeerCount *peer_count;
1293 if ((first != NULL) && (second != NULL))
1295 add_new_connection(find_peer_context, first, second);
1296 find_peer_context->current_peers++;
1300 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Peer count finished (%u connections)\n",
1301 find_peer_context->current_peers);
1302 peer_count = GNUNET_CONTAINER_heap_peek(find_peer_context->peer_min_heap);
1303 GNUNET_assert(peer_count != NULL);
1304 /* 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. */
1305 /* NO they won't, because we have disabled peerinfo writing to disk (remember?) so we WILL have to give them new connections */
1306 /* Best course of action: have DHT automatically try to add peers from peerinfo on startup. This way IF peerinfo writes to file
1307 * then some peers will end up connected.
1309 * Also, find any peers that have zero connections here and set up a task to choose at random another peer in the network to
1310 * 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
1311 * until they get a peer.
1313 /* However, they won't automatically be connected to any of their previous peers... How can we handle that? */
1314 /* So now we have choices: do we want them to come back with all their connections? Probably not, but it solves this mess. */
1316 /* Second problem, which is still a problem, is that a FIND_PEER request won't work when a peer has no connections */
1319 * Okay, so here's how this *should* work now.
1321 * 1. We check the min heap for any peers that have 0 connections.
1322 * a. If any are found, we iterate over the heap and just randomly
1323 * choose another peer and ask testing to please connect the two.
1324 * This takes care of the case that a peer just randomly joins the
1325 * network. However, if there are strict topology restrictions
1326 * (imagine a ring) choosing randomly most likely won't help.
1327 * We make sure the connection attempt doesn't take longer than
1328 * the total timeout, but don't care too much about the result.
1329 * b. After that, we still schedule the find peer requests (concurrently
1330 * with the connect attempts most likely). This handles the case
1331 * that the DHT iterates over peerinfo and just needs to try to send
1332 * a message to get connected. This should handle the case that the
1333 * topology is very strict.
1335 * 2. If all peers have > 0 connections, we still send find peer requests
1336 * as long as possible (until timeout is reached) to help out those
1337 * peers that were newly churned and need more connections. This is because
1338 * once all new peers have established a single connection, they won't be
1341 * 3. Once we reach the timeout, we can do no more. We must schedule the
1342 * next iteration of get requests regardless of connections that peers
1343 * may or may not have.
1345 * Caveat: it would be nice to get peers to take data offline with them and
1346 * come back with it (or not) based on the testing framework. The
1347 * same goes for remembering previous connections, but putting either
1348 * into the general testing churn options seems like overkill because
1349 * these are very specialized cases.
1351 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);
1352 if ((peer_count->count == 0) && (GNUNET_TIME_absolute_get_remaining(find_peer_context->endtime).rel_value > 0))
1354 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Found peer with no connections, will choose some peer(s) at random to connect to!\n");
1355 GNUNET_CONTAINER_heap_iterate (find_peer_context->peer_min_heap, &iterate_min_heap_peers, find_peer_context);
1356 GNUNET_SCHEDULER_add_now(&schedule_churn_find_peer_requests, find_peer_context);
1358 else if ((GNUNET_TIME_absolute_get_remaining(find_peer_context->endtime).rel_value > 0) && (find_peer_context->last_sent != 0))
1360 GNUNET_SCHEDULER_add_now(&schedule_churn_find_peer_requests, find_peer_context);
1364 GNUNET_CONTAINER_multihashmap_iterate(find_peer_context->peer_hash, &remove_peer_count, find_peer_context);
1365 GNUNET_CONTAINER_multihashmap_destroy(find_peer_context->peer_hash);
1366 GNUNET_CONTAINER_heap_destroy(find_peer_context->peer_min_heap);
1367 GNUNET_free(find_peer_context);
1368 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Churn round %u of %llu finished, scheduling next GET round.\n", current_churn_round, churn_rounds);
1369 if (dhtlog_handle != NULL)
1371 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
1372 topo_ctx->cont = &do_get;
1373 topo_ctx->cls = all_gets;
1374 topo_ctx->timeout = DEFAULT_GET_TIMEOUT;
1375 topo_ctx->peers_seen = GNUNET_CONTAINER_multihashmap_create(num_peers);
1376 die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_add(GNUNET_TIME_relative_add(DEFAULT_GET_TIMEOUT, all_get_timeout), DEFAULT_TOPOLOGY_CAPTURE_TIMEOUT),
1377 &end_badly, "from do gets (count_peers_churn_cb)");
1378 GNUNET_SCHEDULER_add_now(&capture_current_topology, topo_ctx);
1382 die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_add(GNUNET_TIME_relative_add(DEFAULT_GET_TIMEOUT, all_get_timeout), DEFAULT_TOPOLOGY_CAPTURE_TIMEOUT),
1383 &end_badly, "from do gets (count_peers_churn_cb)");
1384 GNUNET_SCHEDULER_add_now(&do_get, all_gets);
1391 * Set up a single find peer request for each peer in the topology. Do this
1392 * until the settle time is over, limited by the number of outstanding requests
1393 * and the time allowed for each one!
1396 schedule_churn_find_peer_requests (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1398 struct FindPeerContext *find_peer_ctx = cls;
1399 struct TestFindPeer *test_find_peer;
1400 struct PeerCount *peer_count;
1403 if (find_peer_ctx->previous_peers == 0) /* First time, go slowly */
1404 find_peer_ctx->total = 1;
1405 else if (find_peer_ctx->current_peers - find_peer_ctx->previous_peers < MIN_FIND_PEER_CUTOFF)
1406 find_peer_ctx->total = find_peer_ctx->total / 2;
1407 else if (find_peer_ctx->current_peers - find_peer_ctx->previous_peers > MAX_FIND_PEER_CUTOFF) /* Found LOTS of peers, still go slowly */
1408 find_peer_ctx->total = find_peer_ctx->last_sent - (find_peer_ctx->last_sent / 4);
1410 find_peer_ctx->total = find_peer_ctx->last_sent * 4;
1412 if (find_peer_ctx->total > max_outstanding_find_peers)
1413 find_peer_ctx->total = max_outstanding_find_peers;
1415 find_peer_ctx->last_sent = find_peer_ctx->total;
1416 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Sending %u find peer messages (after churn)\n", find_peer_ctx->total);
1418 if (find_peer_ctx->total > 0)
1419 find_peer_offset = GNUNET_TIME_relative_divide(find_peer_delay, find_peer_ctx->total);
1422 find_peer_ctx->previous_peers = find_peer_ctx->current_peers;
1423 find_peer_ctx->current_peers = 0;
1424 GNUNET_TESTING_get_topology (pg, &count_peers_churn_cb, find_peer_ctx);
1428 for (i = 0; i < find_peer_ctx->total; i++)
1430 test_find_peer = GNUNET_malloc(sizeof(struct TestFindPeer));
1431 /* If we have sent requests, choose peers with a low number of connections to send requests from */
1432 peer_count = GNUNET_CONTAINER_heap_remove_root(find_peer_ctx->peer_min_heap);
1433 GNUNET_assert(peer_count != NULL);
1434 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Sending find peer request from peer with %u connections\n", peer_count->count);
1435 GNUNET_CONTAINER_multihashmap_remove(find_peer_ctx->peer_hash, &peer_count->peer_id.hashPubKey, peer_count);
1436 test_find_peer->daemon = GNUNET_TESTING_daemon_get_by_id(pg, &peer_count->peer_id);
1437 GNUNET_assert(test_find_peer->daemon != NULL);
1438 test_find_peer->find_peer_context = find_peer_ctx;
1439 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_multiply(find_peer_offset, i), &send_find_peer_request, test_find_peer);
1442 if ((find_peer_ctx->peer_hash == NULL) && (find_peer_ctx->peer_min_heap == NULL))
1444 find_peer_ctx->peer_hash = GNUNET_CONTAINER_multihashmap_create(num_peers);
1445 find_peer_ctx->peer_min_heap = GNUNET_CONTAINER_heap_create(GNUNET_CONTAINER_HEAP_ORDER_MIN);
1449 GNUNET_CONTAINER_multihashmap_iterate(find_peer_ctx->peer_hash, &remove_peer_count, find_peer_ctx);
1450 GNUNET_CONTAINER_multihashmap_destroy(find_peer_ctx->peer_hash);
1451 find_peer_ctx->peer_hash = GNUNET_CONTAINER_multihashmap_create(num_peers);
1454 GNUNET_assert(0 == GNUNET_CONTAINER_multihashmap_size(find_peer_ctx->peer_hash));
1455 GNUNET_assert(0 == GNUNET_CONTAINER_heap_get_size(find_peer_ctx->peer_min_heap));
1458 static void schedule_churn_get_topology (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1460 struct FindPeerContext *find_peer_context = cls;
1461 GNUNET_TESTING_get_topology (pg, &count_peers_churn_cb, find_peer_context);
1465 * Called when churning of the topology has finished.
1467 * @param cls closure unused
1468 * @param emsg NULL on success, or a printable error on failure
1470 static void churn_complete (void *cls, const char *emsg)
1472 struct FindPeerContext *find_peer_context = cls;
1473 struct PeerCount *peer_count;
1475 struct GNUNET_TESTING_Daemon *temp_daemon;
1476 struct TopologyIteratorContext *topo_ctx;
1477 struct GNUNET_TIME_Relative calc_timeout;
1482 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Ending test, churning of peers failed with error `%s'", emsg);
1483 GNUNET_SCHEDULER_add_now(&end_badly, (void *)emsg);
1488 * If we switched any peers on, we have to somehow force connect the new peer to
1489 * SOME bootstrap peer in the network. First schedule a task to find all peers
1490 * with no connections, then choose a random peer for each and connect them.
1492 if (find_peer_context != NULL)
1494 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "We have churned on some peers, so we must schedule find peer requests for them!\n");
1496 for (i = 0; i < num_peers; i ++)
1498 temp_daemon = GNUNET_TESTING_daemon_get(pg, i);
1499 if (GNUNET_YES == GNUNET_TESTING_daemon_running(temp_daemon))
1501 peer_count = GNUNET_malloc (sizeof(struct PeerCount));
1502 memcpy(&peer_count->peer_id, &temp_daemon->id, sizeof(struct GNUNET_PeerIdentity));
1503 GNUNET_assert(peer_count->count == 0);
1504 peer_count->heap_node = GNUNET_CONTAINER_heap_insert(find_peer_context->peer_min_heap, peer_count, peer_count->count);
1505 GNUNET_CONTAINER_multihashmap_put(find_peer_context->peer_hash, &temp_daemon->id.hashPubKey, peer_count, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
1509 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));
1510 GNUNET_SCHEDULER_add_delayed(DEFAULT_PEER_DISCONNECT_TIMEOUT, &schedule_churn_get_topology, find_peer_context);
1511 //GNUNET_TESTING_get_topology (pg, &count_peers_churn_cb, find_peer_context);
1515 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");
1516 if (dhtlog_handle != NULL)
1518 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
1519 topo_ctx->cont = &do_get;
1520 topo_ctx->cls = all_gets;
1521 topo_ctx->timeout = DEFAULT_GET_TIMEOUT;
1522 topo_ctx->peers_seen = GNUNET_CONTAINER_multihashmap_create(num_peers);
1523 calc_timeout = GNUNET_TIME_relative_add(DEFAULT_GET_TIMEOUT, all_get_timeout);
1524 calc_timeout = GNUNET_TIME_relative_add(calc_timeout, DEFAULT_TOPOLOGY_CAPTURE_TIMEOUT);
1525 calc_timeout = GNUNET_TIME_relative_add(calc_timeout, DEFAULT_PEER_DISCONNECT_TIMEOUT);
1526 die_task = GNUNET_SCHEDULER_add_delayed (calc_timeout,
1527 &end_badly, "from do gets (churn_complete)");
1528 GNUNET_SCHEDULER_add_delayed(DEFAULT_PEER_DISCONNECT_TIMEOUT, &capture_current_topology, topo_ctx);
1532 calc_timeout = GNUNET_TIME_relative_add(DEFAULT_GET_TIMEOUT, all_get_timeout);
1533 calc_timeout = GNUNET_TIME_relative_add(calc_timeout, DEFAULT_PEER_DISCONNECT_TIMEOUT);
1534 die_task = GNUNET_SCHEDULER_add_delayed (calc_timeout,
1535 &end_badly, "from do gets (churn_complete)");
1536 if (dhtlog_handle != NULL)
1537 dhtlog_handle->insert_round(DHT_ROUND_GET, rounds_finished);
1538 GNUNET_SCHEDULER_add_delayed(DEFAULT_PEER_DISCONNECT_TIMEOUT, &do_get, all_gets);
1544 * Decide how many peers to turn on or off in this round, make sure the
1545 * numbers actually make sense, then do so. This function sets in motion
1546 * churn, find peer requests for newly joined peers, and issuing get
1547 * requests once the new peers have done so.
1549 * @param cls closure (unused)
1550 * @param cls task context (unused)
1553 churn_peers (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1555 unsigned int count_running;
1556 unsigned int churn_up;
1557 unsigned int churn_down;
1558 struct GNUNET_TIME_Relative timeout;
1559 struct FindPeerContext *find_peer_context;
1561 churn_up = churn_down = 0;
1562 count_running = GNUNET_TESTING_daemons_running(pg);
1563 if (count_running > churn_array[current_churn_round])
1564 churn_down = count_running - churn_array[current_churn_round];
1565 else if (count_running < churn_array[current_churn_round])
1566 churn_up = churn_array[current_churn_round] - count_running;
1568 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Not churning any peers, topology unchanged.\n");
1570 if (churn_up > num_peers - count_running)
1572 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Churn file specified %u peers (up); only have %u!", churn_array[current_churn_round], num_peers);
1573 churn_up = num_peers - count_running;
1575 else if (churn_down > count_running)
1577 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Churn file specified %u peers (down); only have %u!", churn_array[current_churn_round], count_running);
1578 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "This will leave NO peers running (mistake in churn configuration?)!");
1579 churn_down = count_running;
1581 //timeout = GNUNET_TIME_relative_multiply(seconds_per_peer_start, churn_up > 0 ? churn_up : churn_down);
1582 //timeout = GNUNET_TIME_relative_multiply (seconds_per_peer_start, churn_up > 0 ? churn_up : churn_down);
1583 timeout = GNUNET_TIME_relative_multiply(DEFAULT_TIMEOUT, 2); /* FIXME: Lack of intelligent choice here */
1584 find_peer_context = NULL;
1585 if (churn_up > 0) /* Only need to do find peer requests if we turned new peers on */
1587 find_peer_context = GNUNET_malloc(sizeof(struct FindPeerContext));
1588 find_peer_context->count_peers_cb = &count_peers_churn_cb;
1589 find_peer_context->previous_peers = 0;
1590 find_peer_context->current_peers = 0;
1591 find_peer_context->endtime = GNUNET_TIME_relative_to_absolute(timeout);
1592 find_peer_context->peer_hash = GNUNET_CONTAINER_multihashmap_create(num_peers);
1593 find_peer_context->peer_min_heap = GNUNET_CONTAINER_heap_create(GNUNET_CONTAINER_HEAP_ORDER_MIN);
1595 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "churn_peers: want %u total, %u running, starting %u, stopping %u\n",
1596 churn_array[current_churn_round], count_running, churn_up, churn_down);
1597 GNUNET_TESTING_daemons_churn (pg, churn_down, churn_up, timeout, &churn_complete, find_peer_context);
1598 current_churn_round++;
1602 * Task to release DHT handle associated with GET request.
1605 get_stop_finished (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1607 struct TestGetContext *test_get = cls;
1608 struct TopologyIteratorContext *topo_ctx;
1610 /* The dht_handle may be null if this get was scheduled from a down peer */
1611 if (test_get->dht_handle != NULL)
1613 GNUNET_DHT_disconnect(test_get->dht_handle);
1614 outstanding_gets--; /* GET is really finished */
1615 test_get->dht_handle = NULL;
1618 /* Reset the uid (which item to search for) and the daemon (which peer to search from) for later get request iterations */
1619 if (get_from_same == GNUNET_NO)
1621 test_get->uid = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_puts);
1622 test_get->daemon = GNUNET_TESTING_daemon_get(pg, GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers));
1626 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "%d gets succeeded, %d gets failed!\n", gets_completed, gets_failed);
1628 update_meter(get_meter);
1629 if ((gets_completed + gets_failed == num_gets) && (outstanding_gets == 0))
1631 fprintf(stderr, "Canceling die task (get_stop_finished) %llu gets completed, %llu gets failed\n", gets_completed, gets_failed);
1632 GNUNET_SCHEDULER_cancel(die_task);
1633 reset_meter(put_meter);
1634 reset_meter(get_meter);
1637 * 1) Testing is completely finished, call the topology iteration dealy and die
1638 * 2) Testing is not finished, churn the network and do gets again (current_churn_round < churn_rounds)
1639 * 3) Testing is not finished, reschedule all the PUTS *and* GETS again (num_rounds > 1)
1641 if (rounds_finished == total_rounds - 1) /* Everything is finished, end testing */
1643 if (dhtlog_handle != NULL)
1645 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
1646 topo_ctx->cont = &log_dht_statistics;
1647 topo_ctx->peers_seen = GNUNET_CONTAINER_multihashmap_create(num_peers);
1648 GNUNET_SCHEDULER_add_now(&capture_current_topology, topo_ctx);
1651 GNUNET_SCHEDULER_add_now (&finish_testing, NULL);
1653 else if (current_churn_round < churns_per_round * (rounds_finished + 1)) /* Do next round of churn */
1655 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);
1659 if (dhtlog_handle != NULL)
1660 dhtlog_handle->insert_round(DHT_ROUND_CHURN, rounds_finished);
1662 GNUNET_SCHEDULER_add_now(&churn_peers, NULL);
1664 else if (rounds_finished < total_rounds - 1) /* Start a new complete round */
1669 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Round %u of %llu finished, scheduling next round.\n", rounds_finished, total_rounds);
1671 /** We reset the peer daemon for puts and gets on each disconnect, so all we need to do is start another round! */
1672 if (GNUNET_YES == in_dht_replication) /* Replication done in DHT, don't redo puts! */
1674 if (dhtlog_handle != NULL)
1675 dhtlog_handle->insert_round(DHT_ROUND_GET, rounds_finished);
1677 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),
1678 &end_badly, "from do gets (next round)");
1679 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, round_delay), &do_get, all_gets);
1683 if (dhtlog_handle != NULL)
1684 dhtlog_handle->insert_round(DHT_ROUND_NORMAL, rounds_finished);
1685 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)),
1686 &end_badly, "from do puts");
1687 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, round_delay), &do_put, all_puts);
1694 * Task to release get handle.
1697 get_stop_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1699 struct TestGetContext *test_get = cls;
1701 if (tc->reason == GNUNET_SCHEDULER_REASON_TIMEOUT)
1703 GNUNET_assert(test_get->get_handle != NULL);
1704 GNUNET_DHT_get_stop(test_get->get_handle);
1705 test_get->get_handle = NULL;
1706 test_get->disconnect_task = GNUNET_SCHEDULER_NO_TASK;
1707 GNUNET_SCHEDULER_add_now (&get_stop_finished, test_get);
1711 * Iterator called if the GET request initiated returns a response.
1713 * @param cls closure
1714 * @param exp when will this value expire
1715 * @param key key of the result
1716 * @param get_path NULL-terminated array of pointers
1717 * to the peers on reverse GET path (or NULL if not recorded)
1718 * @param put_path NULL-terminated array of pointers
1719 * to the peers on the PUT path (or NULL if not recorded)
1720 * @param type type of the result
1721 * @param size number of bytes in data
1722 * @param data pointer to the result data
1725 get_result_iterator (void *cls,
1726 struct GNUNET_TIME_Absolute exp,
1727 const GNUNET_HashCode * key,
1728 const struct GNUNET_PeerIdentity * const *get_path,
1729 const struct GNUNET_PeerIdentity * const *put_path,
1730 enum GNUNET_BLOCK_Type type,
1734 struct TestGetContext *test_get = cls;
1736 if (test_get->succeeded == GNUNET_YES)
1737 return; /* Get has already been successful, probably ending now */
1739 if (0 != memcmp(&known_keys[test_get->uid], key, sizeof (GNUNET_HashCode))) /* || (0 != memcmp(original_data, data, sizeof(original_data))))*/
1742 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Key or data is not the same as was inserted!\n");
1747 test_get->succeeded = GNUNET_YES;
1750 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Received correct GET response!\n");
1752 GNUNET_SCHEDULER_cancel(test_get->disconnect_task);
1753 GNUNET_SCHEDULER_add_continuation(&get_stop_task, test_get, GNUNET_SCHEDULER_REASON_PREREQ_DONE);
1759 * Set up some data, and call API PUT function
1762 do_get (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1764 struct TestGetContext *test_get = cls;
1768 GNUNET_SCHEDULER_cancel(die_task);
1769 GNUNET_SCHEDULER_add_now(&finish_testing, NULL);
1772 if (test_get == NULL)
1773 return; /* End of the list */
1775 /* Set this here in case we are re-running gets */
1776 test_get->succeeded = GNUNET_NO;
1778 if (GNUNET_YES != GNUNET_TESTING_daemon_running(test_get->daemon)) /* If the peer has been churned off, don't try issuing request from it! */
1780 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Peer we should issue get request from is down, skipping.\n");
1782 GNUNET_SCHEDULER_add_now (&get_stop_finished, test_get);
1783 GNUNET_SCHEDULER_add_now (&do_get, test_get->next);
1787 /* Check if more gets are outstanding than should be */
1788 if (outstanding_gets > max_outstanding_gets)
1790 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MILLISECONDS, 200), &do_get, test_get);
1794 /* Connect to the first peer's DHT */
1795 test_get->dht_handle = GNUNET_DHT_connect(test_get->daemon->cfg, 10);
1796 GNUNET_assert(test_get->dht_handle != NULL);
1799 /* Insert the data at the first peer */
1800 test_get->get_handle = GNUNET_DHT_get_start(test_get->dht_handle,
1802 GNUNET_BLOCK_TYPE_TEST,
1803 &known_keys[test_get->uid],
1808 &get_result_iterator,
1812 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Starting get for uid %u from peer %s\n",
1814 test_get->daemon->shortname);
1816 test_get->disconnect_task = GNUNET_SCHEDULER_add_delayed(get_timeout, &get_stop_task, test_get);
1818 /* Schedule the next request in the linked list of get requests */
1819 GNUNET_SCHEDULER_add_now (&do_get, test_get->next);
1823 * Called when the PUT request has been transmitted to the DHT service.
1824 * Schedule the GET request for some time in the future.
1827 put_finished (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1829 struct TestPutContext *test_put = cls;
1830 struct TopologyIteratorContext *topo_ctx;
1834 if (tc->reason == GNUNET_SCHEDULER_REASON_TIMEOUT)
1835 fprintf(stderr, "PUT Request failed!\n");
1837 /* Reset the daemon (which peer to insert at) for later put request iterations */
1838 if (replicate_same == GNUNET_NO)
1839 test_put->daemon = GNUNET_TESTING_daemon_get(pg, GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers));
1841 GNUNET_SCHEDULER_cancel(test_put->disconnect_task);
1842 test_put->disconnect_task = GNUNET_SCHEDULER_add_now(&put_disconnect_task, test_put);
1843 if (GNUNET_YES == update_meter(put_meter))
1845 GNUNET_assert(outstanding_puts == 0);
1846 GNUNET_SCHEDULER_cancel (die_task);
1847 if (dhtlog_handle != NULL)
1849 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
1850 topo_ctx->cont = &do_get;
1851 topo_ctx->cls = all_gets;
1852 topo_ctx->timeout = DEFAULT_GET_TIMEOUT;
1853 topo_ctx->peers_seen = GNUNET_CONTAINER_multihashmap_create(num_peers);
1854 die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_add(GNUNET_TIME_relative_add(DEFAULT_GET_TIMEOUT, all_get_timeout), DEFAULT_TOPOLOGY_CAPTURE_TIMEOUT),
1855 &end_badly, "from do gets (put finished)");
1856 GNUNET_SCHEDULER_add_now(&capture_current_topology, topo_ctx);
1860 fprintf(stderr, "Scheduling die task (put finished)\n");
1861 die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_add(DEFAULT_GET_TIMEOUT, all_get_timeout),
1862 &end_badly, "from do gets (put finished)");
1863 GNUNET_SCHEDULER_add_delayed(DEFAULT_GET_TIMEOUT, &do_get, all_gets);
1870 * Set up some data, and call API PUT function
1873 do_put (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1875 struct TestPutContext *test_put = cls;
1876 char data[test_data_size]; /* Made up data to store */
1880 if (test_put == NULL)
1881 return; /* End of list */
1883 if (GNUNET_YES != GNUNET_TESTING_daemon_running(test_put->daemon)) /* If the peer has been churned off, don't try issuing request from it! */
1885 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Peer we should issue put request at is down, skipping.\n");
1886 update_meter(put_meter);
1887 GNUNET_SCHEDULER_add_now (&do_put, test_put->next);
1891 for (i = 0; i < sizeof(data); i++)
1893 memset(&data[i], GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, UINT32_MAX), 1);
1896 if (outstanding_puts > max_outstanding_puts)
1898 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MILLISECONDS, 200), &do_put, test_put);
1903 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Starting put for uid %u from peer %s\n",
1905 test_put->daemon->shortname);
1907 test_put->dht_handle = GNUNET_DHT_connect(test_put->daemon->cfg, 10);
1909 GNUNET_assert(test_put->dht_handle != NULL);
1911 GNUNET_DHT_put(test_put->dht_handle,
1912 &known_keys[test_put->uid],
1915 GNUNET_BLOCK_TYPE_TEST,
1917 GNUNET_TIME_UNIT_FOREVER_ABS,
1919 &put_finished, test_put);
1920 test_put->disconnect_task = GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_get_forever(), &put_disconnect_task, test_put);
1921 rand = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, 2);
1922 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, rand), &do_put, test_put->next);
1926 schedule_find_peer_requests (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc);
1929 * Given a number of total peers and a bucket size, estimate the number of
1930 * connections in a perfect kademlia topology.
1932 static unsigned int connection_estimate(unsigned int peer_count, unsigned int bucket_size)
1935 unsigned int filled;
1939 while (i >= bucket_size)
1944 filled++; /* Add one filled bucket to account for one "half full" and some miscellaneous */
1945 return filled * bucket_size * peer_count;
1951 * Callback for iterating over all the peer connections of a peer group.
1954 count_peers_cb (void *cls,
1955 const struct GNUNET_PeerIdentity *first,
1956 const struct GNUNET_PeerIdentity *second,
1959 struct FindPeerContext *find_peer_context = cls;
1960 if ((first != NULL) && (second != NULL))
1962 add_new_connection(find_peer_context, first, second);
1963 find_peer_context->current_peers++;
1967 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Peer count finished (%u connections), %u new peers, connection estimate %u (double %u)\n",
1968 find_peer_context->current_peers,
1969 find_peer_context->current_peers - find_peer_context->previous_peers,
1970 connection_estimate(num_peers, DEFAULT_BUCKET_SIZE),
1971 2 * connection_estimate(num_peers, DEFAULT_BUCKET_SIZE));
1973 if ((find_peer_context->last_sent < 8) ||
1974 ((find_peer_context->current_peers - find_peer_context->previous_peers > FIND_PEER_THRESHOLD) &&
1975 (find_peer_context->current_peers < 2 * connection_estimate(num_peers, DEFAULT_BUCKET_SIZE)) &&
1976 (GNUNET_TIME_absolute_get_remaining(find_peer_context->endtime).rel_value > 0)))
1978 GNUNET_SCHEDULER_add_now(&schedule_find_peer_requests, find_peer_context);
1982 GNUNET_CONTAINER_multihashmap_iterate(find_peer_context->peer_hash, &remove_peer_count, find_peer_context);
1983 GNUNET_CONTAINER_multihashmap_destroy(find_peer_context->peer_hash);
1984 GNUNET_CONTAINER_heap_destroy(find_peer_context->peer_min_heap);
1985 GNUNET_free(find_peer_context);
1986 fprintf(stderr, "Not sending any more find peer requests.\n");
1993 * Set up a single find peer request for each peer in the topology. Do this
1994 * until the settle time is over, limited by the number of outstanding requests
1995 * and the time allowed for each one!
1998 schedule_find_peer_requests (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
2000 struct FindPeerContext *find_peer_ctx = cls;
2001 struct TestFindPeer *test_find_peer;
2002 struct PeerCount *peer_count;
2006 if (find_peer_ctx->previous_peers == 0) /* First time, go slowly */
2007 find_peer_ctx->total = 1;
2008 else if (find_peer_ctx->current_peers - find_peer_ctx->previous_peers > MAX_FIND_PEER_CUTOFF) /* Found LOTS of peers, still go slowly */
2009 find_peer_ctx->total = find_peer_ctx->last_sent - (find_peer_ctx->last_sent / 8);
2011 find_peer_ctx->total = find_peer_ctx->last_sent * 2;
2013 if (find_peer_ctx->total > max_outstanding_find_peers)
2014 find_peer_ctx->total = max_outstanding_find_peers;
2016 find_peer_ctx->last_sent = find_peer_ctx->total;
2017 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));
2019 find_peer_offset = GNUNET_TIME_relative_divide(find_peer_delay, find_peer_ctx->total);
2020 for (i = 0; i < find_peer_ctx->total; i++)
2022 test_find_peer = GNUNET_malloc(sizeof(struct TestFindPeer));
2023 if (find_peer_ctx->previous_peers == 0) /* If we haven't sent any requests, yet choose random peers */
2026 * Attempt to spread find peer requests across even sections of the peer address
2027 * space. Choose basically 1 peer in every num_peers / max_outstanding_requests
2028 * each time, then offset it by a randomish value.
2030 * For instance, if num_peers is 100 and max_outstanding is 10, first chosen peer
2031 * will be between 0 - 10, second between 10 - 20, etc.
2033 random = (num_peers / find_peer_ctx->total) * i;
2034 random = random + GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, (num_peers / find_peer_ctx->total));
2035 if (random >= num_peers)
2037 random = random - num_peers;
2040 random = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers);
2042 test_find_peer->daemon = GNUNET_TESTING_daemon_get(pg, random);
2044 else /* If we have sent requests, choose peers with a low number of connections to send requests from */
2046 peer_count = GNUNET_CONTAINER_heap_remove_root(find_peer_ctx->peer_min_heap);
2047 GNUNET_assert(GNUNET_YES == GNUNET_CONTAINER_multihashmap_remove(find_peer_ctx->peer_hash, &peer_count->peer_id.hashPubKey, peer_count));
2048 test_find_peer->daemon = GNUNET_TESTING_daemon_get_by_id(pg, &peer_count->peer_id);
2049 GNUNET_assert(test_find_peer->daemon != NULL);
2052 test_find_peer->find_peer_context = find_peer_ctx;
2053 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_multiply(find_peer_offset, i), &send_find_peer_request, test_find_peer);
2056 if ((find_peer_ctx->peer_hash == NULL) && (find_peer_ctx->peer_min_heap == NULL))
2058 find_peer_ctx->peer_hash = GNUNET_CONTAINER_multihashmap_create(num_peers);
2059 find_peer_ctx->peer_min_heap = GNUNET_CONTAINER_heap_create(GNUNET_CONTAINER_HEAP_ORDER_MIN);
2063 GNUNET_CONTAINER_multihashmap_iterate(find_peer_ctx->peer_hash, &remove_peer_count, find_peer_ctx);
2064 GNUNET_CONTAINER_multihashmap_destroy(find_peer_ctx->peer_hash);
2065 find_peer_ctx->peer_hash = GNUNET_CONTAINER_multihashmap_create(num_peers);
2068 GNUNET_assert(0 == GNUNET_CONTAINER_multihashmap_size(find_peer_ctx->peer_hash));
2069 GNUNET_assert(0 == GNUNET_CONTAINER_heap_get_size(find_peer_ctx->peer_min_heap));
2074 * Set up some all of the put and get operations we want
2075 * to do. Allocate data structure for each, add to list,
2076 * then call actual insert functions.
2079 setup_puts_and_gets (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
2082 uint32_t temp_daemon;
2083 struct TestPutContext *test_put;
2084 struct TestGetContext *test_get;
2086 int remember[num_puts][num_peers];
2087 memset(&remember, 0, sizeof(int) * num_puts * num_peers);
2089 known_keys = GNUNET_malloc(sizeof(GNUNET_HashCode) * num_puts);
2090 for (i = 0; i < num_puts; i++)
2092 test_put = GNUNET_malloc(sizeof(struct TestPutContext));
2094 GNUNET_CRYPTO_hash_create_random (GNUNET_CRYPTO_QUALITY_WEAK, &known_keys[i]);
2095 temp_daemon = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers);
2096 test_put->daemon = GNUNET_TESTING_daemon_get(pg, temp_daemon);
2097 test_put->next = all_puts;
2098 all_puts = test_put;
2101 for (i = 0; i < num_gets; i++)
2103 test_get = GNUNET_malloc(sizeof(struct TestGetContext));
2104 test_get->uid = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_puts);
2106 while (remember[test_get->uid][temp_daemon] == 1)
2107 temp_daemon = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers);
2108 remember[test_get->uid][temp_daemon] = 1;
2110 test_get->daemon = GNUNET_TESTING_daemon_get(pg, GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers));
2111 test_get->next = all_gets;
2112 all_gets = test_get;
2115 /*GNUNET_SCHEDULER_cancel (die_task);*/
2116 die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, num_puts * 2),
2117 &end_badly, "from do puts");
2118 GNUNET_SCHEDULER_add_now (&do_put, all_puts);
2123 * Set up some all of the put and get operations we want
2124 * to do. Allocate data structure for each, add to list,
2125 * then call actual insert functions.
2128 continue_puts_and_gets (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
2132 struct TopologyIteratorContext *topo_ctx;
2133 struct FindPeerContext *find_peer_context;
2134 if (dhtlog_handle != NULL)
2136 if (settle_time >= 180 * 2)
2137 max = (settle_time / 180) - 2;
2140 for (i = 1; i < max; i++)
2142 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
2143 topo_ctx->current_iteration = i;
2144 topo_ctx->total_iterations = max;
2145 topo_ctx->peers_seen = GNUNET_CONTAINER_multihashmap_create(num_peers);
2146 //fprintf(stderr, "scheduled topology iteration in %d minutes\n", i);
2147 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MINUTES, i * 3), &capture_current_topology, topo_ctx);
2149 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
2150 topo_ctx->cont = &setup_puts_and_gets;
2151 topo_ctx->peers_seen = GNUNET_CONTAINER_multihashmap_create(num_peers);
2152 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, (settle_time + 90)), &capture_current_topology, topo_ctx);
2155 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, (settle_time + 90)), &setup_puts_and_gets, NULL);
2157 if (dhtlog_handle != NULL)
2158 dhtlog_handle->insert_round(DHT_ROUND_NORMAL, rounds_finished);
2160 if (GNUNET_YES == do_find_peer)
2162 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Scheduling find peer requests during \"settle\" time.\n");
2163 find_peer_context = GNUNET_malloc(sizeof(struct FindPeerContext));
2164 find_peer_context->count_peers_cb = &count_peers_cb;
2165 find_peer_context->endtime = GNUNET_TIME_relative_to_absolute(GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, settle_time));
2166 GNUNET_SCHEDULER_add_now(&schedule_find_peer_requests, find_peer_context);
2170 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Assuming automatic DHT find peer requests.\n");
2175 * Task to release DHT handles
2178 malicious_disconnect_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
2180 struct MaliciousContext *ctx = cls;
2181 outstanding_malicious--;
2182 malicious_completed++;
2183 ctx->disconnect_task = GNUNET_SCHEDULER_NO_TASK;
2184 GNUNET_DHT_disconnect(ctx->dht_handle);
2185 ctx->dht_handle = NULL;
2188 if (malicious_completed == malicious_getters + malicious_putters + malicious_droppers)
2190 GNUNET_SCHEDULER_cancel(die_task);
2191 fprintf(stderr, "Finished setting all malicious peers up, calling continuation!\n");
2192 if (dhtlog_handle != NULL)
2193 GNUNET_SCHEDULER_add_now (&continue_puts_and_gets, NULL);
2195 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, settle_time),
2196 &continue_puts_and_gets, NULL);
2202 * Task to release DHT handles
2205 malicious_done_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
2207 struct MaliciousContext *ctx = cls;
2208 GNUNET_SCHEDULER_cancel(ctx->disconnect_task);
2209 GNUNET_SCHEDULER_add_now(&malicious_disconnect_task, ctx);
2213 * Set up some data, and call API PUT function
2216 set_malicious (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
2218 struct MaliciousContext *ctx = cls;
2220 if (outstanding_malicious > DEFAULT_MAX_OUTSTANDING_GETS)
2222 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MILLISECONDS, 100), &set_malicious, ctx);
2226 if (ctx->dht_handle == NULL)
2228 ctx->dht_handle = GNUNET_DHT_connect(ctx->daemon->cfg, 1);
2229 outstanding_malicious++;
2232 GNUNET_assert(ctx->dht_handle != NULL);
2236 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Setting peer %s malicious type %d\n",
2237 ctx->daemon->shortname, ctx->malicious_type);
2240 switch (ctx->malicious_type)
2242 case GNUNET_MESSAGE_TYPE_DHT_MALICIOUS_GET:
2243 GNUNET_DHT_set_malicious_getter(ctx->dht_handle, malicious_get_frequency);
2244 GNUNET_SCHEDULER_add_now (&malicious_done_task, ctx);
2246 case GNUNET_MESSAGE_TYPE_DHT_MALICIOUS_PUT:
2247 GNUNET_DHT_set_malicious_putter(ctx->dht_handle, malicious_put_frequency);
2248 GNUNET_SCHEDULER_add_now (&malicious_done_task, ctx);
2250 case GNUNET_MESSAGE_TYPE_DHT_MALICIOUS_DROP:
2251 GNUNET_DHT_set_malicious_dropper(ctx->dht_handle);
2252 GNUNET_SCHEDULER_add_now (&malicious_done_task, ctx);
2258 ctx->disconnect_task = GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_UNIT_FOREVER_REL,
2259 &malicious_disconnect_task, ctx);
2263 * Select randomly from set of known peers,
2264 * set the desired number of peers to the
2265 * proper malicious types.
2268 setup_malicious_peers (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
2270 struct MaliciousContext *ctx;
2272 uint32_t temp_daemon;
2274 for (i = 0; i < malicious_getters; i++)
2276 ctx = GNUNET_malloc(sizeof(struct MaliciousContext));
2277 temp_daemon = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers);
2278 ctx->daemon = GNUNET_TESTING_daemon_get(pg, temp_daemon);
2279 ctx->malicious_type = GNUNET_MESSAGE_TYPE_DHT_MALICIOUS_GET;
2280 GNUNET_SCHEDULER_add_now (&set_malicious, ctx);
2284 for (i = 0; i < malicious_putters; i++)
2286 ctx = GNUNET_malloc(sizeof(struct MaliciousContext));
2287 temp_daemon = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers);
2288 ctx->daemon = GNUNET_TESTING_daemon_get(pg, temp_daemon);
2289 ctx->malicious_type = GNUNET_MESSAGE_TYPE_DHT_MALICIOUS_PUT;
2290 GNUNET_SCHEDULER_add_now (&set_malicious, ctx);
2294 for (i = 0; i < malicious_droppers; i++)
2296 ctx = GNUNET_malloc(sizeof(struct MaliciousContext));
2297 temp_daemon = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers);
2298 ctx->daemon = GNUNET_TESTING_daemon_get(pg, temp_daemon);
2299 ctx->malicious_type = GNUNET_MESSAGE_TYPE_DHT_MALICIOUS_DROP;
2300 GNUNET_SCHEDULER_add_now (&set_malicious, ctx);
2304 * If we have any malicious peers to set up,
2305 * the malicious callback should call continue_gets_and_puts
2307 if (malicious_getters + malicious_putters + malicious_droppers > 0)
2309 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Giving malicious set tasks some time before starting testing!\n");
2310 die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, (malicious_getters + malicious_putters + malicious_droppers) * 2),
2311 &end_badly, "from set malicious");
2313 else /* Otherwise, continue testing */
2315 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Scheduling continue_puts_and_gets now!\n");
2316 GNUNET_SCHEDULER_add_now (&continue_puts_and_gets, NULL);
2321 * This function is called whenever a connection attempt is finished between two of
2322 * the started peers (started with GNUNET_TESTING_daemons_start). The total
2323 * number of times this function is called should equal the number returned
2324 * from the GNUNET_TESTING_connect_topology call.
2326 * The emsg variable is NULL on success (peers connected), and non-NULL on
2327 * failure (peers failed to connect).
2330 topology_callback (void *cls,
2331 const struct GNUNET_PeerIdentity *first,
2332 const struct GNUNET_PeerIdentity *second,
2334 const struct GNUNET_CONFIGURATION_Handle *first_cfg,
2335 const struct GNUNET_CONFIGURATION_Handle *second_cfg,
2336 struct GNUNET_TESTING_Daemon *first_daemon,
2337 struct GNUNET_TESTING_Daemon *second_daemon,
2340 struct TopologyIteratorContext *topo_ctx;
2343 total_connections++;
2345 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "connected peer %s to peer %s, distance %u\n",
2346 first_daemon->shortname,
2347 second_daemon->shortname,
2353 failed_connections++;
2355 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Failed to connect peer %s to peer %s with error :\n%s\n",
2356 first_daemon->shortname,
2357 second_daemon->shortname, emsg);
2361 GNUNET_assert(peer_connect_meter != NULL);
2362 if (GNUNET_YES == update_meter(peer_connect_meter))
2365 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2366 "Created %d total connections, which is our target number! Starting next phase of testing.\n",
2369 if (dhtlog_handle != NULL)
2371 dhtlog_handle->update_connections (total_connections);
2372 dhtlog_handle->insert_topology(expected_connections);
2375 GNUNET_SCHEDULER_cancel (die_task);
2376 /*die_task = GNUNET_SCHEDULER_add_delayed (DEFAULT_TIMEOUT,
2377 &end_badly, "from setup puts/gets");*/
2378 if ((dhtlog_handle != NULL) && (settle_time > 0))
2380 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
2381 topo_ctx->cont = &setup_malicious_peers;
2382 topo_ctx->peers_seen = GNUNET_CONTAINER_multihashmap_create(num_peers);
2383 //topo_ctx->cont = &continue_puts_and_gets;
2384 GNUNET_SCHEDULER_add_now(&capture_current_topology, topo_ctx);
2388 GNUNET_SCHEDULER_add_now(&setup_malicious_peers, NULL);
2389 /*GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, settle_time),
2390 &continue_puts_and_gets, NULL);*/
2393 else if (total_connections + failed_connections == expected_connections)
2395 GNUNET_SCHEDULER_cancel (die_task);
2396 die_task = GNUNET_SCHEDULER_add_now (&end_badly, "from topology_callback (too many failed connections)");
2401 peers_started_callback (void *cls,
2402 const struct GNUNET_PeerIdentity *id,
2403 const struct GNUNET_CONFIGURATION_Handle *cfg,
2404 struct GNUNET_TESTING_Daemon *d, const char *emsg)
2408 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Failed to start daemon with error: `%s'\n",
2412 GNUNET_assert (id != NULL);
2415 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Started daemon %llu out of %llu\n",
2416 (num_peers - peers_left) + 1, num_peers);
2421 if (GNUNET_YES == update_meter(peer_start_meter))
2424 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2425 "All %d daemons started, now connecting peers!\n",
2428 GNUNET_SCHEDULER_cancel (die_task);
2430 expected_connections = UINT_MAX;
2431 if ((pg != NULL) && (peers_left == 0))
2433 expected_connections = GNUNET_TESTING_connect_topology (pg, connect_topology, connect_topology_option, connect_topology_option_modifier, NULL, NULL);
2435 peer_connect_meter = create_meter(expected_connections, "Peer connection ", GNUNET_YES);
2436 fprintf(stderr, "Have %d expected connections\n", expected_connections);
2439 if (expected_connections == GNUNET_SYSERR)
2441 die_task = GNUNET_SCHEDULER_add_now (&end_badly, "from connect topology (bad return)");
2444 die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, DEFAULT_CONNECT_TIMEOUT * expected_connections),
2445 &end_badly, "from connect topology (timeout)");
2454 peers_left = num_peers; /* Reset counter */
2455 if (GNUNET_TESTING_create_topology (pg, topology, blacklist_topology, blacklist_transports) != GNUNET_SYSERR)
2458 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2459 "Topology set up, now starting peers!\n");
2461 GNUNET_TESTING_daemons_continue_startup(pg);
2465 GNUNET_SCHEDULER_cancel (die_task);
2466 die_task = GNUNET_SCHEDULER_add_now (&end_badly, "from create topology (bad return)");
2468 GNUNET_free_non_null(blacklist_transports);
2469 GNUNET_SCHEDULER_cancel (die_task);
2470 die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(seconds_per_peer_start, num_peers),
2471 &end_badly, "from continue startup (timeout)");
2475 * Callback indicating that the hostkey was created for a peer.
2478 * @param id the peer identity
2479 * @param d the daemon handle (pretty useless at this point, remove?)
2480 * @param emsg non-null on failure
2483 hostkey_callback (void *cls,
2484 const struct GNUNET_PeerIdentity *id,
2485 struct GNUNET_TESTING_Daemon *d,
2490 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Hostkey callback received error: %s\n", emsg);
2494 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2495 "Hostkey (%d/%d) created for peer `%s'\n",
2496 num_peers - peers_left, num_peers, GNUNET_i2s(id));
2500 if (GNUNET_YES == update_meter(hostkey_meter))
2503 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2504 "All %d hostkeys created, now creating topology!\n",
2507 GNUNET_SCHEDULER_cancel (die_task);
2508 /* Set up task in case topology creation doesn't finish
2509 * within a reasonable amount of time */
2510 die_task = GNUNET_SCHEDULER_add_delayed (DEFAULT_TOPOLOGY_TIMEOUT,
2511 &end_badly, "from create_topology");
2512 GNUNET_SCHEDULER_add_now(&create_topology, NULL);
2521 const char *cfgfile, const struct GNUNET_CONFIGURATION_Handle *cfg)
2524 struct GNUNET_DHTLOG_TrialInfo trial_info;
2525 struct GNUNET_TESTING_Host *hosts;
2526 struct GNUNET_TESTING_Host *temphost;
2527 struct GNUNET_TESTING_Host *tempnext;
2529 char *connect_topology_str;
2530 char *blacklist_topology_str;
2531 char *connect_topology_option_str;
2532 char *connect_topology_option_modifier_string;
2534 char *topology_percentage_str;
2535 float topology_percentage;
2536 char *topology_probability_str;
2538 float topology_probability;
2539 unsigned long long temp_config_number;
2540 unsigned long long trial_to_run;
2543 int strict_kademlia;
2547 char *churn_filename;
2554 rounds_finished = 0;
2555 memset(&trial_info, 0, sizeof(struct GNUNET_DHTLOG_TrialInfo));
2556 /* Get path from configuration file */
2557 if (GNUNET_YES != GNUNET_CONFIGURATION_get_value_string(cfg, "paths", "servicehome", &test_directory))
2564 * Get DHT specific testing options.
2566 if ((GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht_testing", "mysql_logging")) ||
2567 (GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht_testing", "mysql_logging_extended")))
2569 dhtlog_handle = GNUNET_DHTLOG_connect(cfg);
2570 if (dhtlog_handle == NULL)
2572 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2573 "Could not connect to mysql server for logging, will NOT log dht operations!");
2579 stop_closest = GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht", "stop_on_closest");
2580 if (stop_closest == GNUNET_SYSERR)
2581 stop_closest = GNUNET_NO;
2583 stop_found = GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht", "stop_found");
2584 if (stop_found == GNUNET_SYSERR)
2585 stop_found = GNUNET_NO;
2587 strict_kademlia = GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht", "strict_kademlia");
2588 if (strict_kademlia == GNUNET_SYSERR)
2589 strict_kademlia = GNUNET_NO;
2592 GNUNET_CONFIGURATION_get_value_string (cfg, "dht_testing", "comment",
2594 trialmessage = NULL;
2597 /** Check for a churn file to do churny simulation */
2599 GNUNET_CONFIGURATION_get_value_string(cfg, "dht_testing", "churn_file",
2602 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Reading churn data from %s\n", churn_filename);
2603 if (GNUNET_OK != GNUNET_DISK_file_test (churn_filename))
2605 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Error reading churn file!\n");
2606 GNUNET_free_non_null(trialmessage);
2607 GNUNET_free(churn_filename);
2610 if ((0 != STAT (churn_filename, &frstat)) || (frstat.st_size == 0))
2612 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
2613 "Could not open file specified for churn data, ending test!");
2615 GNUNET_free_non_null(trialmessage);
2616 GNUNET_free(churn_filename);
2620 churn_data = GNUNET_malloc_large (frstat.st_size);
2621 GNUNET_assert(churn_data != NULL);
2622 if (frstat.st_size !=
2623 GNUNET_DISK_fn_read (churn_filename, churn_data, frstat.st_size))
2625 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
2626 "Could not read file %s specified for churn, ending test!", churn_filename);
2627 GNUNET_free (churn_filename);
2628 GNUNET_free (churn_data);
2629 GNUNET_free_non_null(trialmessage);
2633 GNUNET_free_non_null(churn_filename);
2637 /* Read the first line */
2638 while (count < frstat.st_size)
2641 if (((churn_data[count] == '\n')) && (buf != &churn_data[count]))
2643 churn_data[count] = '\0';
2644 if (1 != sscanf(buf, "%u", &churn_rounds))
2646 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Failed to read number of rounds from churn file, ending test!\n");
2648 GNUNET_free_non_null(trialmessage);
2649 GNUNET_free_non_null(churn_data);
2652 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Read %u rounds from churn file\n", churn_rounds);
2653 buf = &churn_data[count + 1];
2654 churn_array = GNUNET_malloc(sizeof(unsigned int) * churn_rounds);
2655 break; /* Done with this part */
2659 if (GNUNET_OK != GNUNET_CONFIGURATION_get_value_number(cfg, "dht_testing", "churns_per_round", &churns_per_round))
2661 churns_per_round = (unsigned long long)churn_rounds;
2665 while ((count < frstat.st_size) && (line_number < churn_rounds))
2668 if (((churn_data[count] == '\n')) && (buf != &churn_data[count]))
2670 churn_data[count] = '\0';
2672 ret = sscanf(buf, "%u", &churn_array[line_number]);
2675 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Read %u peers in round %u\n", churn_array[line_number], line_number);
2680 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Error reading line `%s' in hostfile\n", buf);
2681 buf = &churn_data[count + 1];
2684 buf = &churn_data[count + 1];
2686 else if (churn_data[count] == '\n') /* Blank line */
2687 buf = &churn_data[count + 1];
2690 GNUNET_free_non_null(churn_data);
2692 /** Check for a hostfile containing user@host:port triples */
2694 GNUNET_CONFIGURATION_get_value_string (cfg, "testing", "hostfile",
2700 if (hostfile != NULL)
2702 if (GNUNET_OK != GNUNET_DISK_file_test (hostfile))
2703 GNUNET_DISK_fn_write (hostfile, NULL, 0, GNUNET_DISK_PERM_USER_READ
2704 | GNUNET_DISK_PERM_USER_WRITE);
2705 if ((0 != STAT (hostfile, &frstat)) || (frstat.st_size == 0))
2707 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
2708 "Could not open file specified for host list, ending test!");
2710 GNUNET_free_non_null(trialmessage);
2711 GNUNET_free(hostfile);
2715 data = GNUNET_malloc_large (frstat.st_size);
2716 GNUNET_assert(data != NULL);
2717 if (frstat.st_size !=
2718 GNUNET_DISK_fn_read (hostfile, data, frstat.st_size))
2720 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
2721 "Could not read file %s specified for host list, ending test!", hostfile);
2722 GNUNET_free (hostfile);
2724 GNUNET_free_non_null(trialmessage);
2728 GNUNET_free_non_null(hostfile);
2732 while (count < frstat.st_size)
2735 /* if (((data[count] == '\n') || (data[count] == '\0')) && (buf != &data[count]))*/
2736 if (((data[count] == '\n')) && (buf != &data[count]))
2739 temphost = GNUNET_malloc(sizeof(struct GNUNET_TESTING_Host));
2740 ret = sscanf(buf, "%a[a-zA-Z0-9]@%a[a-zA-Z0-9.]:%hd", &temphost->username, &temphost->hostname, &temphost->port);
2743 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Successfully read host %s, port %d and user %s from file\n", temphost->hostname, temphost->port, temphost->username);
2747 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Error reading line `%s' in hostfile\n", buf);
2748 GNUNET_free(temphost);
2749 buf = &data[count + 1];
2752 /* temphost->hostname = buf; */
2753 temphost->next = hosts;
2755 buf = &data[count + 1];
2757 else if ((data[count] == '\n') || (data[count] == '\0'))
2758 buf = &data[count + 1];
2763 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "malicious_getters",
2764 &malicious_getters))
2765 malicious_getters = 0;
2768 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "malicious_putters",
2769 &malicious_putters))
2770 malicious_putters = 0;
2773 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "malicious_droppers",
2774 &malicious_droppers))
2775 malicious_droppers = 0;
2778 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "settle_time",
2782 if (GNUNET_SYSERR ==
2783 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "num_puts",
2785 num_puts = num_peers;
2787 if (GNUNET_SYSERR ==
2788 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "put_replication",
2790 put_replication = DEFAULT_PUT_REPLICATION;
2792 if (GNUNET_SYSERR ==
2793 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "num_gets",
2795 num_gets = num_peers;
2797 if (GNUNET_SYSERR ==
2798 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "get_replication",
2800 get_replication = DEFAULT_GET_REPLICATION;
2803 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "find_peer_delay",
2804 &temp_config_number))
2805 find_peer_delay = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_config_number);
2807 find_peer_delay = DEFAULT_FIND_PEER_DELAY;
2810 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "concurrent_find_peers",
2811 &temp_config_number))
2812 max_outstanding_find_peers = temp_config_number;
2814 max_outstanding_find_peers = DEFAULT_MAX_OUTSTANDING_FIND_PEERS;
2817 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "get_timeout",
2818 &temp_config_number))
2819 get_timeout = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_config_number);
2821 get_timeout = DEFAULT_GET_TIMEOUT;
2824 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "concurrent_puts",
2825 &temp_config_number))
2826 max_outstanding_puts = temp_config_number;
2828 max_outstanding_puts = DEFAULT_MAX_OUTSTANDING_PUTS;
2831 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "concurrent_gets",
2832 &temp_config_number))
2833 max_outstanding_gets = temp_config_number;
2835 max_outstanding_gets = DEFAULT_MAX_OUTSTANDING_GETS;
2838 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "timeout",
2839 &temp_config_number))
2840 all_get_timeout = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_config_number);
2842 all_get_timeout.rel_value = get_timeout.rel_value * num_gets;
2845 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "get_delay",
2846 &temp_config_number))
2847 get_delay = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_config_number);
2849 get_delay = DEFAULT_GET_DELAY;
2852 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "put_delay",
2853 &temp_config_number))
2854 put_delay = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_config_number);
2856 put_delay = DEFAULT_PUT_DELAY;
2859 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "peer_start_timeout",
2860 &temp_config_number))
2861 seconds_per_peer_start = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_config_number);
2863 seconds_per_peer_start = DEFAULT_SECONDS_PER_PEER_START;
2866 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "data_size",
2867 &temp_config_number))
2868 test_data_size = temp_config_number;
2870 test_data_size = DEFAULT_TEST_DATA_SIZE;
2873 * Get testing related options.
2875 if (GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno(cfg, "DHT_TESTING", "REPLICATE_SAME"))
2876 replicate_same = GNUNET_YES;
2879 * Get testing related options.
2881 if (GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno(cfg, "DHT_TESTING", "GET_FROM_SAME"))
2882 get_from_same = GNUNET_YES;
2885 if (GNUNET_NO == GNUNET_CONFIGURATION_get_value_time (cfg, "DHT_TESTING",
2886 "MALICIOUS_GET_FREQUENCY",
2887 &malicious_get_frequency))
2888 malicious_get_frequency = DEFAULT_MALICIOUS_GET_FREQUENCY;
2891 if (GNUNET_NO == GNUNET_CONFIGURATION_get_value_time (cfg, "DHT_TESTING",
2892 "MALICIOUS_PUT_FREQUENCY",
2893 &malicious_put_frequency))
2894 malicious_put_frequency = DEFAULT_MALICIOUS_PUT_FREQUENCY;
2897 /* The normal behavior of the DHT is to do find peer requests
2898 * on its own. Only if this is explicitly turned off should
2899 * the testing driver issue find peer requests (even though
2900 * this is likely the default when testing).
2903 GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht",
2906 do_find_peer = GNUNET_YES;
2910 GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht",
2913 in_dht_replication = GNUNET_YES;
2916 if (GNUNET_YES != GNUNET_CONFIGURATION_get_value_number (cfg, "DHT_TESTING",
2923 if (GNUNET_YES == GNUNET_CONFIGURATION_get_value_number (cfg, "DHT_TESTING",
2925 &temp_config_number))
2927 find_peer_delay = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_config_number);
2930 find_peer_delay = DEFAULT_FIND_PEER_DELAY;
2932 if (GNUNET_YES != GNUNET_CONFIGURATION_get_value_number(cfg, "DHT_TESTING", "ROUND_DELAY", &round_delay))
2935 if (GNUNET_NO == GNUNET_CONFIGURATION_get_value_number (cfg, "DHT_TESTING",
2936 "OUTSTANDING_FIND_PEERS",
2937 &max_outstanding_find_peers))
2938 max_outstanding_find_peers = DEFAULT_MAX_OUTSTANDING_FIND_PEERS;
2940 if (GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht", "strict_kademlia"))
2941 max_outstanding_find_peers = max_outstanding_find_peers * 1;
2943 find_peer_offset = GNUNET_TIME_relative_divide (find_peer_delay, max_outstanding_find_peers);
2945 if (GNUNET_SYSERR ==
2946 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "num_rounds",
2952 topology_str = NULL;
2954 GNUNET_CONFIGURATION_get_value_string(cfg, "testing", "topology",
2955 &topology_str)) && (GNUNET_NO == GNUNET_TESTING_topology_get(&topology, topology_str)))
2957 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2958 "Invalid topology `%s' given for section %s option %s\n", topology_str, "TESTING", "TOPOLOGY");
2959 topology = GNUNET_TESTING_TOPOLOGY_CLIQUE; /* Defaults to NONE, so set better default here */
2963 GNUNET_CONFIGURATION_get_value_string (cfg, "testing", "percentage",
2964 &topology_percentage_str))
2965 topology_percentage = 0.5;
2968 topology_percentage = atof (topology_percentage_str);
2969 GNUNET_free(topology_percentage_str);
2973 GNUNET_CONFIGURATION_get_value_string (cfg, "testing", "probability",
2974 &topology_probability_str))
2975 topology_probability = 0.5;
2978 topology_probability = atof (topology_probability_str);
2979 GNUNET_free(topology_probability_str);
2983 GNUNET_CONFIGURATION_get_value_string(cfg, "testing", "connect_topology",
2984 &connect_topology_str)) && (GNUNET_NO == GNUNET_TESTING_topology_get(&connect_topology, connect_topology_str)))
2986 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2987 "Invalid connect topology `%s' given for section %s option %s\n", connect_topology_str, "TESTING", "CONNECT_TOPOLOGY");
2989 GNUNET_free_non_null(connect_topology_str);
2992 GNUNET_CONFIGURATION_get_value_string(cfg, "testing", "connect_topology_option",
2993 &connect_topology_option_str)) && (GNUNET_NO == GNUNET_TESTING_topology_option_get(&connect_topology_option, connect_topology_option_str)))
2995 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2996 "Invalid connect topology option `%s' given for section %s option %s\n", connect_topology_option_str, "TESTING", "CONNECT_TOPOLOGY_OPTION");
2997 connect_topology_option = GNUNET_TESTING_TOPOLOGY_OPTION_ALL; /* Defaults to NONE, set to ALL */
2999 GNUNET_free_non_null(connect_topology_option_str);
3002 GNUNET_CONFIGURATION_get_value_string (cfg, "testing", "connect_topology_option_modifier",
3003 &connect_topology_option_modifier_string))
3005 if (sscanf(connect_topology_option_modifier_string, "%lf", &connect_topology_option_modifier) != 1)
3007 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
3008 _("Invalid value `%s' for option `%s' in section `%s': expected float\n"),
3009 connect_topology_option_modifier_string,
3010 "connect_topology_option_modifier",
3013 GNUNET_free (connect_topology_option_modifier_string);
3016 if (GNUNET_YES != GNUNET_CONFIGURATION_get_value_string (cfg, "testing", "blacklist_transports",
3017 &blacklist_transports))
3018 blacklist_transports = NULL;
3021 GNUNET_CONFIGURATION_get_value_string(cfg, "testing", "blacklist_topology",
3022 &blacklist_topology_str)) &&
3023 (GNUNET_NO == GNUNET_TESTING_topology_get(&blacklist_topology, blacklist_topology_str)))
3025 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
3026 "Invalid topology `%s' given for section %s option %s\n", topology_str, "TESTING", "BLACKLIST_TOPOLOGY");
3028 GNUNET_free_non_null(topology_str);
3029 GNUNET_free_non_null(blacklist_topology_str);
3031 /* Get number of peers to start from configuration */
3032 if (GNUNET_SYSERR ==
3033 GNUNET_CONFIGURATION_get_value_number (cfg, "testing", "num_peers",
3036 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
3037 "Number of peers must be specified in section %s option %s\n", "TESTING", "NUM_PEERS");
3039 GNUNET_assert(num_peers > 0 && num_peers < ULONG_MAX);
3040 /* Set peers_left so we know when all peers started */
3041 peers_left = num_peers;
3044 /* Set up a task to end testing if peer start fails */
3045 die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(seconds_per_peer_start, num_peers),
3046 &end_badly, "didn't generate all hostkeys within allowed startup time!");
3048 if (dhtlog_handle == NULL)
3049 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
3050 "dhtlog_handle is NULL!");
3052 trial_info.other_identifier = (unsigned int)trial_to_run;
3053 trial_info.num_nodes = peers_left;
3054 trial_info.topology = topology;
3055 trial_info.blacklist_topology = blacklist_topology;
3056 trial_info.connect_topology = connect_topology;
3057 trial_info.connect_topology_option = connect_topology_option;
3058 trial_info.connect_topology_option_modifier = connect_topology_option_modifier;
3059 trial_info.topology_percentage = topology_percentage;
3060 trial_info.topology_probability = topology_probability;
3061 trial_info.puts = num_puts;
3062 trial_info.gets = num_gets;
3063 trial_info.concurrent = max_outstanding_gets;
3064 trial_info.settle_time = settle_time;
3065 trial_info.num_rounds = 1;
3066 trial_info.malicious_getters = malicious_getters;
3067 trial_info.malicious_putters = malicious_putters;
3068 trial_info.malicious_droppers = malicious_droppers;
3069 trial_info.malicious_get_frequency = malicious_get_frequency.rel_value;
3070 trial_info.malicious_put_frequency = malicious_put_frequency.rel_value;
3071 trial_info.stop_closest = stop_closest;
3072 trial_info.stop_found = stop_found;
3073 trial_info.strict_kademlia = strict_kademlia;
3075 if (trialmessage != NULL)
3076 trial_info.message = trialmessage;
3078 trial_info.message = "";
3080 if (dhtlog_handle != NULL)
3081 dhtlog_handle->insert_trial(&trial_info);
3083 GNUNET_free_non_null(trialmessage);
3085 hostkey_meter = create_meter(peers_left, "Hostkeys created ", GNUNET_YES);
3086 peer_start_meter = create_meter(peers_left, "Peers started ", GNUNET_YES);
3088 put_meter = create_meter(num_puts, "Puts completed ", GNUNET_YES);
3089 get_meter = create_meter(num_gets, "Gets completed ", GNUNET_YES);
3090 pg = GNUNET_TESTING_daemons_start (cfg,
3092 GNUNET_TIME_relative_multiply(seconds_per_peer_start, num_peers),
3093 &hostkey_callback, NULL,
3094 &peers_started_callback, NULL,
3095 &topology_callback, NULL,
3098 while (temphost != NULL)
3100 tempnext = temphost->next;
3101 GNUNET_free (temphost->username);
3102 GNUNET_free (temphost->hostname);
3103 GNUNET_free (temphost);
3104 temphost = tempnext;
3109 main (int argc, char *argv[])
3112 struct GNUNET_GETOPT_CommandLineOption options[] = {
3113 GNUNET_GETOPT_OPTION_END
3116 ret = GNUNET_PROGRAM_run (argc,
3117 argv, "gnunet-dht-driver", "nohelp",
3118 options, &run, &ok);
3120 if (ret != GNUNET_OK)
3122 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "`gnunet-dht-driver': Failed with error code %d\n", ret);
3126 * Need to remove base directory, subdirectories taken care
3127 * of by the testing framework.
3129 if (GNUNET_DISK_directory_remove (test_directory) != GNUNET_OK)
3131 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Failed to remove testing directory %s\n", test_directory);
3136 /* end of gnunet-dht-driver.c */