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 /* How often (in seconds) to print out connection information */
76 #define CONN_UPDATE_DURATION 10
78 #define DEFAULT_MAX_OUTSTANDING_PUTS 10
80 #define DEFAULT_MAX_OUTSTANDING_FIND_PEERS 196
82 #define DEFAULT_FIND_PEER_OFFSET GNUNET_TIME_relative_divide (DEFAULT_FIND_PEER_DELAY, DEFAULT_MAX_OUTSTANDING_FIND_PEERS)
84 #define DEFAULT_MAX_OUTSTANDING_GETS 10
86 #define DEFAULT_CONNECT_TIMEOUT 60
88 #define DEFAULT_TOPOLOGY_TIMEOUT GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MINUTES, 8)
90 #define DEFAULT_RECONNECT_ATTEMPTS 8
93 * Default frequency for sending malicious get messages
95 #define DEFAULT_MALICIOUS_GET_FREQUENCY GNUNET_TIME_UNIT_SECONDS
98 * Default frequency for sending malicious put messages
100 #define DEFAULT_MALICIOUS_PUT_FREQUENCY GNUNET_TIME_UNIT_SECONDS
104 struct MaliciousContext
107 * Handle to DHT service (via the API)
109 struct GNUNET_DHT_Handle *dht_handle;
112 * Handle to the peer daemon
114 struct GNUNET_TESTING_Daemon *daemon;
117 * Task for disconnecting DHT handles
119 GNUNET_SCHEDULER_TaskIdentifier disconnect_task;
122 * What type of malicious to set this peer to.
129 /* This is a linked list */
130 struct TestFindPeer *next;
132 /* Handle to the bigger context */
133 struct FindPeerContext *find_peer_context;
136 * Handle to the peer's DHT service (via the API)
138 struct GNUNET_DHT_Handle *dht_handle;
141 * Handle to the peer daemon
143 struct GNUNET_TESTING_Daemon *daemon;
146 * Task for disconnecting DHT handles
148 GNUNET_SCHEDULER_TaskIdentifier disconnect_task;
151 struct TestPutContext
153 /* This is a linked list */
154 struct TestPutContext *next;
157 * Handle to the first peers DHT service (via the API)
159 struct GNUNET_DHT_Handle *dht_handle;
162 * Handle to the PUT peer daemon
164 struct GNUNET_TESTING_Daemon *daemon;
167 * Identifier for this PUT
172 * Task for disconnecting DHT handles
174 GNUNET_SCHEDULER_TaskIdentifier disconnect_task;
177 struct TestGetContext
179 /* This is a linked list */
180 struct TestGetContext *next;
183 * Handle to the first peers DHT service (via the API)
185 struct GNUNET_DHT_Handle *dht_handle;
188 * Handle for the DHT get request
190 struct GNUNET_DHT_GetHandle *get_handle;
193 * Handle to the GET peer daemon
195 struct GNUNET_TESTING_Daemon *daemon;
198 * Identifier for this GET
203 * Task for disconnecting DHT handles (and stopping GET)
205 GNUNET_SCHEDULER_TaskIdentifier disconnect_task;
208 * Whether or not this request has been fulfilled already.
214 * Simple struct to keep track of progress, and print a
215 * nice little percentage meter for long running tasks.
225 unsigned int completed;
229 char *startup_string;
233 * Linked list of information for populating statistics
234 * before ending trial.
236 struct StatisticsIteratorContext
238 const struct GNUNET_PeerIdentity *peer;
239 unsigned int stat_routes;
240 unsigned int stat_route_forwards;
241 unsigned int stat_results;
242 unsigned int stat_results_to_client;
243 unsigned int stat_result_forwards;
244 unsigned int stat_gets;
245 unsigned int stat_puts;
246 unsigned int stat_puts_inserted;
247 unsigned int stat_find_peer;
248 unsigned int stat_find_peer_start;
249 unsigned int stat_get_start;
250 unsigned int stat_put_start;
251 unsigned int stat_find_peer_reply;
252 unsigned int stat_get_reply;
253 unsigned int stat_find_peer_answer;
254 unsigned int stat_get_response_start;
258 * Context for getting a topology, logging it, and continuing
259 * on with some next operation.
261 struct TopologyIteratorContext
263 unsigned int total_iterations;
264 unsigned int current_iteration;
265 unsigned int total_connections;
266 unsigned int total_peers;
267 struct GNUNET_CONTAINER_MultiHashMap *peers_seen;
268 struct GNUNET_PeerIdentity *peer;
269 GNUNET_SCHEDULER_Task cont;
271 struct GNUNET_TIME_Relative timeout;
277 /** Node in the heap */
278 struct GNUNET_CONTAINER_HeapNode *heap_node;
280 /** Peer the count refers to */
281 struct GNUNET_PeerIdentity peer_id;
283 /** Count of connections this peer has */
288 * Context for sending out find peer requests.
290 struct FindPeerContext
293 * How long to send find peer requests, once the settle time
294 * is over don't send any more out!
296 * TODO: Add option for settle time and find peer sending time?
298 struct GNUNET_TIME_Absolute endtime;
301 * Number of connections in the current topology
302 * (after this round of find peer requests has ended).
304 unsigned int current_peers;
307 * Number of connections in the current topology
308 * (before this round of find peer requests started).
310 unsigned int previous_peers;
313 * Number of find peer requests we have currently
316 unsigned int outstanding;
319 * Number of find peer requests to send in this round.
324 * Number of find peer requests sent last time around.
326 unsigned int last_sent;
329 * Hashmap of peers in the current topology, value
330 * is a PeerCount, with the number of connections
333 struct GNUNET_CONTAINER_MultiHashMap *peer_hash;
336 * Min heap which orders values in the peer_hash for
339 struct GNUNET_CONTAINER_Heap *peer_min_heap;
342 * Callback for counting the peers in the current topology.
344 GNUNET_TESTING_NotifyTopology count_peers_cb;
350 * Next full round (puts + gets).
355 * Next round of gets.
360 * Next round of puts.
365 * Next round of churn.
375 * Timeout to let all GET requests happen.
377 static struct GNUNET_TIME_Relative all_get_timeout;
382 static struct GNUNET_TIME_Relative get_timeout;
385 * Time to allow for GET requests to be sent to service.
387 static struct GNUNET_TIME_Relative get_delay;
390 * Time to allow for PUT requests to be sent to service.
392 static struct GNUNET_TIME_Relative put_delay;
395 * Delay between sending find peer requests (if
396 * handled by the driver, no effect if sent by service).
398 static struct GNUNET_TIME_Relative find_peer_delay;
401 * Time between find peer requests
402 * (find_peer_delay / max_outstanding_find_peer)
404 static struct GNUNET_TIME_Relative find_peer_offset;
407 * How many seconds to allow each peer to start.
409 static struct GNUNET_TIME_Relative seconds_per_peer_start;
412 * At what time did we start the connection process.
414 static struct GNUNET_TIME_Absolute connect_start_time;
417 * What was the last time we updated connection/second information.
419 static struct GNUNET_TIME_Absolute connect_last_time;
422 * Boolean value, should the driver issue find peer requests
423 * (GNUNET_YES) or should it be left to the service (GNUNET_NO)
425 static unsigned int do_find_peer;
428 * Boolean value, should replication be done by the dht
429 * service (GNUNET_YES) or by the driver (GNUNET_NO)
431 static unsigned int in_dht_replication;
434 * Size of test data to insert/retrieve during testing.
436 static unsigned long long test_data_size = DEFAULT_TEST_DATA_SIZE;
439 * Maximum number of concurrent PUT requests.
441 static unsigned long long max_outstanding_puts = DEFAULT_MAX_OUTSTANDING_PUTS;
444 * Maximum number of concurrent GET requests.
446 static unsigned long long max_outstanding_gets = DEFAULT_MAX_OUTSTANDING_GETS;
449 * Number of nodes issuing malicious GET messages.
451 static unsigned long long malicious_getters;
454 * Maximum number of concurrent find peer messages being sent.
456 static unsigned long long max_outstanding_find_peers;
459 * Number of nodes issuing malicious PUT messages.
461 static unsigned long long malicious_putters;
464 * Time (in seconds) to delay between rounds.
466 static unsigned long long round_delay;
469 * How many malicious droppers to seed in the network.
471 static unsigned long long malicious_droppers;
474 * Bloom filter to restrict malicious nodes chosen.
476 struct GNUNET_CONTAINER_BloomFilter *malicious_bloom;
479 * Whether malicious droppers should be chosen based on proximity to a key.
481 static int malicious_sybil;
484 * Target for the malicious sybil nodes (choose the closest to this key).
486 static GNUNET_HashCode sybil_target;
489 * How often to send malicious GET messages.
491 static struct GNUNET_TIME_Relative malicious_get_frequency;
494 * How often to send malicious PUT messages.
496 static struct GNUNET_TIME_Relative malicious_put_frequency;
499 * How long to send find peer requests.
501 static unsigned long long settle_time;
504 * Handle to the dhtlog service.
506 static struct GNUNET_DHTLOG_Handle *dhtlog_handle;
509 * Replication value for GET requests.
511 static unsigned long long get_replication;
514 * Replication value for PUT requests.
516 static unsigned long long put_replication;
519 * If GNUNET_YES, insert data at the same peers every time.
520 * Otherwise, choose a new random peer to insert at each time.
522 static unsigned int replicate_same;
525 * If GNUNET_YES, issue GET requests at the same peers every time.
526 * Otherwise, choose a new random peer/data combination to search
529 static unsigned int get_from_same;
532 * Should malicious peers be set after allowing for settle time?
533 * Default is to set them malicious after initial connection setup.
535 static unsigned int malicious_after_settle;
538 * Number of rounds for testing (PUTS + GETS)
540 static unsigned long long total_rounds;
543 * Target number of connections (will stop sending find peer
544 * messages when this number is exceeded)
546 static unsigned long long target_total_connections;
549 * Number of rounds already run
551 static unsigned int rounds_finished;
554 * Number of rounds of churn to read from the file (first line, should be a single number).
556 static unsigned int churn_rounds;
559 * Current round we are in for churn, tells us how many peers to connect/disconnect.
561 static unsigned int current_churn_round;
564 * Number of times to churn per round
566 static unsigned long long churns_per_round;
569 * Array of churn values.
571 static unsigned int *churn_array;
574 * Hash map of stats contexts.
576 static struct GNUNET_CONTAINER_MultiHashMap *stats_map;
579 * LL of malicious settings.
581 struct MaliciousContext *all_malicious;
584 * List of GETS to perform
586 struct TestGetContext *all_gets;
589 * List of PUTS to perform
591 struct TestPutContext *all_puts;
594 * Directory to store temporary data in, defined in config file
596 static char *test_directory;
599 * Variable used to store the number of connections we should wait for.
601 static unsigned int expected_connections;
604 * Variable used to keep track of how many peers aren't yet started.
606 static unsigned long long peers_left;
609 * Handle to the set of all peers run for this test.
611 static struct GNUNET_TESTING_PeerGroup *pg;
615 * Global config handle.
617 static const struct GNUNET_CONFIGURATION_Handle *config;
620 * Total number of peers to run, set based on config file.
622 static unsigned long long num_peers;
625 * Total number of items to insert.
627 static unsigned long long num_puts;
630 * How many puts do we currently have in flight?
632 static unsigned long long outstanding_puts;
635 * How many puts are done?
637 static unsigned long long puts_completed;
640 * Total number of items to attempt to get.
642 static unsigned long long num_gets;
645 * How many puts do we currently have in flight?
647 static unsigned long long outstanding_gets;
650 * How many gets are done?
652 static unsigned long long gets_completed;
655 * How many gets failed?
657 static unsigned long long gets_failed;
660 * How many malicious control messages do
661 * we currently have in flight?
663 static unsigned long long outstanding_malicious;
666 * How many set malicious peers are done?
668 static unsigned long long malicious_completed;
671 * Global used to count how many connections we have currently
672 * been notified about (how many times has topology_callback been called
675 static unsigned int total_connections;
678 * Previous connections, for counting new connections during some duration.
680 static unsigned int previous_connections;
683 * Global used to count how many failed connections we have
684 * been notified about (how many times has topology_callback
685 * been called with failure?)
687 static unsigned int failed_connections;
689 /* Task handle to use to schedule shutdown if something goes wrong */
690 GNUNET_SCHEDULER_TaskIdentifier die_task;
692 static char *blacklist_transports;
694 static enum GNUNET_TESTING_Topology topology;
696 static enum GNUNET_TESTING_Topology blacklist_topology = GNUNET_TESTING_TOPOLOGY_NONE; /* Don't do any blacklisting */
698 static enum GNUNET_TESTING_Topology connect_topology = GNUNET_TESTING_TOPOLOGY_NONE; /* NONE actually means connect all allowed peers */
700 static enum GNUNET_TESTING_TopologyOption connect_topology_option = GNUNET_TESTING_TOPOLOGY_OPTION_ALL;
702 static double connect_topology_option_modifier = 0.0;
704 static struct ProgressMeter *hostkey_meter;
706 static struct ProgressMeter *peer_start_meter;
708 static struct ProgressMeter *peer_connect_meter;
710 static struct ProgressMeter *put_meter;
712 static struct ProgressMeter *get_meter;
714 static GNUNET_HashCode *known_keys;
716 /* Global return value (0 for success, anything else for failure) */
720 * Create a meter to keep track of the progress of some task.
722 * @param total the total number of items to complete
723 * @param start_string a string to prefix the meter with (if printing)
724 * @param print GNUNET_YES to print the meter, GNUNET_NO to count
727 * @return the progress meter
729 static struct ProgressMeter *
730 create_meter(unsigned int total, char * start_string, int print)
732 struct ProgressMeter *ret;
733 ret = GNUNET_malloc(sizeof(struct ProgressMeter));
736 ret->modnum = total / 4;
737 ret->dotnum = (total / 50) + 1;
738 if (start_string != NULL)
739 ret->startup_string = GNUNET_strdup(start_string);
741 ret->startup_string = GNUNET_strdup("");
747 * Update progress meter (increment by one).
749 * @param meter the meter to update and print info for
751 * @return GNUNET_YES if called the total requested,
752 * GNUNET_NO if more items expected
755 update_meter(struct ProgressMeter *meter)
757 if (meter->print == GNUNET_YES)
759 if (meter->completed % meter->modnum == 0)
761 if (meter->completed == 0)
763 fprintf(stdout, "%sProgress: [0%%", meter->startup_string);
766 fprintf(stdout, "%d%%", (int)(((float)meter->completed / meter->total) * 100));
768 else if (meter->completed % meter->dotnum == 0)
769 fprintf(stdout, ".");
771 if (meter->completed + 1 == meter->total)
772 fprintf(stdout, "%d%%]\n", 100);
777 if (meter->completed == meter->total)
783 * Reset progress meter.
785 * @param meter the meter to reset
787 * @return GNUNET_YES if meter reset,
788 * GNUNET_SYSERR on error
791 reset_meter(struct ProgressMeter *meter)
794 return GNUNET_SYSERR;
796 meter->completed = 0;
801 * Release resources for meter
803 * @param meter the meter to free
806 free_meter(struct ProgressMeter *meter)
808 GNUNET_free_non_null (meter->startup_string);
813 * Check whether peers successfully shut down.
816 shutdown_callback (void *cls,
827 * Task to release DHT handles for PUT
830 put_disconnect_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
832 struct TestPutContext *test_put = cls;
833 test_put->disconnect_task = GNUNET_SCHEDULER_NO_TASK;
834 GNUNET_DHT_disconnect(test_put->dht_handle);
835 test_put->dht_handle = NULL;
836 if (replicate_same == GNUNET_NO)
837 test_put->daemon = GNUNET_TESTING_daemon_get(pg, GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers));
841 * Function scheduled to be run on the successful completion of this
845 finish_testing (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
847 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Ending test normally!\n", (char *)cls);
848 GNUNET_assert (pg != NULL);
849 struct TestPutContext *test_put = all_puts;
850 struct TestGetContext *test_get = all_gets;
852 while (test_put != NULL)
854 if (test_put->disconnect_task != GNUNET_SCHEDULER_NO_TASK)
855 GNUNET_SCHEDULER_cancel(test_put->disconnect_task);
856 if (test_put->dht_handle != NULL)
857 GNUNET_DHT_disconnect(test_put->dht_handle);
858 test_put = test_put->next;
861 while (test_get != NULL)
863 if (test_get->disconnect_task != GNUNET_SCHEDULER_NO_TASK)
864 GNUNET_SCHEDULER_cancel(test_get->disconnect_task);
865 if (test_get->get_handle != NULL)
866 GNUNET_DHT_get_stop(test_get->get_handle);
867 if (test_get->dht_handle != NULL)
868 GNUNET_DHT_disconnect(test_get->dht_handle);
869 test_get = test_get->next;
872 GNUNET_TESTING_daemons_stop (pg, DEFAULT_TIMEOUT, &shutdown_callback, NULL);
874 if (dhtlog_handle != NULL)
876 fprintf(stderr, "Update trial endtime\n");
877 dhtlog_handle->update_trial (gets_completed);
878 GNUNET_DHTLOG_disconnect(dhtlog_handle);
879 dhtlog_handle = NULL;
882 if (hostkey_meter != NULL)
883 free_meter(hostkey_meter);
884 if (peer_start_meter != NULL)
885 free_meter(peer_start_meter);
886 if (peer_connect_meter != NULL)
887 free_meter(peer_connect_meter);
888 if (put_meter != NULL)
889 free_meter(put_meter);
890 if (get_meter != NULL)
891 free_meter(get_meter);
897 * Callback for iterating over all the peer connections of a peer group.
900 log_topology_cb (void *cls,
901 const struct GNUNET_PeerIdentity *first,
902 const struct GNUNET_PeerIdentity *second,
905 struct TopologyIteratorContext *topo_ctx = cls;
906 if ((first != NULL) && (second != NULL))
908 /* GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "According to CORE, peer %s is connected to %s\n", GNUNET_i2s(first), GNUNET_h2s(&second->hashPubKey));*/
909 if ((topo_ctx->peers_seen != NULL) && (GNUNET_NO == GNUNET_CONTAINER_multihashmap_contains(topo_ctx->peers_seen, &first->hashPubKey)))
911 GNUNET_CONTAINER_multihashmap_put(topo_ctx->peers_seen, &first->hashPubKey, NULL, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
912 topo_ctx->total_peers++;
914 topo_ctx->total_connections++;
915 if ((GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno(config, "dht_testing", "mysql_logging")) ||
916 (GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno(config, "dht_testing", "mysql_logging_extended")))
917 dhtlog_handle->insert_extended_topology(first, second);
921 GNUNET_assert(dhtlog_handle != NULL);
922 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);
923 dhtlog_handle->update_topology(topo_ctx->total_connections);
924 if (topo_ctx->cont != NULL)
925 GNUNET_SCHEDULER_add_now (topo_ctx->cont, topo_ctx->cls);
926 if (topo_ctx->peers_seen != NULL)
927 GNUNET_CONTAINER_multihashmap_destroy(topo_ctx->peers_seen);
928 GNUNET_free(topo_ctx);
933 * Iterator over hash map entries.
935 * @param cls closure - always NULL
936 * @param key current key code
937 * @param value value in the hash map, a stats context
938 * @return GNUNET_YES if we should continue to
942 static int stats_iterate (void *cls,
943 const GNUNET_HashCode * key,
946 struct StatisticsIteratorContext *stats_ctx;
950 dhtlog_handle->insert_stat(stats_ctx->peer, stats_ctx->stat_routes, stats_ctx->stat_route_forwards, stats_ctx->stat_results,
951 stats_ctx->stat_results_to_client, stats_ctx->stat_result_forwards, stats_ctx->stat_gets,
952 stats_ctx->stat_puts, stats_ctx->stat_puts_inserted, stats_ctx->stat_find_peer,
953 stats_ctx->stat_find_peer_start, stats_ctx->stat_get_start, stats_ctx->stat_put_start,
954 stats_ctx->stat_find_peer_reply, stats_ctx->stat_get_reply, stats_ctx->stat_find_peer_answer,
955 stats_ctx->stat_get_response_start);
956 GNUNET_free(stats_ctx);
961 stats_finished (void *cls, int result)
963 fprintf(stderr, "Finished getting all peers statistics, iterating!\n");
964 GNUNET_CONTAINER_multihashmap_iterate(stats_map, &stats_iterate, NULL);
965 GNUNET_CONTAINER_multihashmap_destroy(stats_map);
966 GNUNET_SCHEDULER_add_now (&finish_testing, NULL);
970 * Callback function to process statistic values.
973 * @param peer the peer the statistics belong to
974 * @param subsystem name of subsystem that created the statistic
975 * @param name the name of the datum
976 * @param value the current value
977 * @param is_persistent GNUNET_YES if the value is persistent, GNUNET_NO if not
978 * @return GNUNET_OK to continue, GNUNET_SYSERR to abort iteration
980 static int stats_handle (void *cls,
981 const struct GNUNET_PeerIdentity *peer,
982 const char *subsystem,
987 struct StatisticsIteratorContext *stats_ctx;
989 if (dhtlog_handle != NULL)
990 dhtlog_handle->add_generic_stat(peer, name, subsystem, value);
991 if (GNUNET_CONTAINER_multihashmap_contains(stats_map, &peer->hashPubKey))
993 stats_ctx = GNUNET_CONTAINER_multihashmap_get(stats_map, &peer->hashPubKey);
997 stats_ctx = GNUNET_malloc(sizeof(struct StatisticsIteratorContext));
998 stats_ctx->peer = peer;
999 GNUNET_CONTAINER_multihashmap_put(stats_map, &peer->hashPubKey, stats_ctx, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
1001 GNUNET_assert(stats_ctx != NULL);
1003 if (strcmp(name, STAT_ROUTES) == 0)
1004 stats_ctx->stat_routes = value;
1005 else if (strcmp(name, STAT_ROUTE_FORWARDS) == 0)
1006 stats_ctx->stat_route_forwards = value;
1007 else if (strcmp(name, STAT_RESULTS) == 0)
1008 stats_ctx->stat_results = value;
1009 else if (strcmp(name, STAT_RESULTS_TO_CLIENT) == 0)
1010 stats_ctx->stat_results_to_client = value;
1011 else if (strcmp(name, STAT_RESULT_FORWARDS) == 0)
1012 stats_ctx->stat_result_forwards = value;
1013 else if (strcmp(name, STAT_GETS) == 0)
1014 stats_ctx->stat_gets = value;
1015 else if (strcmp(name, STAT_PUTS) == 0)
1016 stats_ctx->stat_puts = value;
1017 else if (strcmp(name, STAT_PUTS_INSERTED) == 0)
1018 stats_ctx->stat_puts_inserted = value;
1019 else if (strcmp(name, STAT_FIND_PEER) == 0)
1020 stats_ctx->stat_find_peer = value;
1021 else if (strcmp(name, STAT_FIND_PEER_START) == 0)
1022 stats_ctx->stat_find_peer_start = value;
1023 else if (strcmp(name, STAT_GET_START) == 0)
1024 stats_ctx->stat_get_start = value;
1025 else if (strcmp(name, STAT_PUT_START) == 0)
1026 stats_ctx->stat_put_start = value;
1027 else if (strcmp(name, STAT_FIND_PEER_REPLY) == 0)
1028 stats_ctx->stat_find_peer_reply = value;
1029 else if (strcmp(name, STAT_GET_REPLY) == 0)
1030 stats_ctx->stat_get_reply = value;
1031 else if (strcmp(name, STAT_FIND_PEER_ANSWER) == 0)
1032 stats_ctx->stat_find_peer_answer = value;
1033 else if (strcmp(name, STAT_GET_RESPONSE_START) == 0)
1034 stats_ctx->stat_get_response_start = value;
1040 * Connect to statistics service for each peer and get the appropriate
1041 * dht statistics for safe keeping.
1044 log_dht_statistics (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1046 stats_map = GNUNET_CONTAINER_multihashmap_create(num_peers);
1047 fprintf(stderr, "Starting statistics logging\n");
1048 GNUNET_TESTING_get_statistics(pg, &stats_finished, &stats_handle, NULL);
1053 * Connect to all peers in the peer group and iterate over their
1057 capture_current_topology (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1059 struct TopologyIteratorContext *topo_ctx = cls;
1060 dhtlog_handle->insert_topology(0);
1061 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Called capture_current_topology\n");
1062 GNUNET_TESTING_get_topology (pg, &log_topology_cb, topo_ctx);
1067 * Check if the get_handle is being used, if so stop the request. Either
1068 * way, schedule the end_badly_cont function which actually shuts down the
1072 end_badly (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1074 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Failing test with error: `%s'!\n", (char *)cls);
1076 struct TestPutContext *test_put = all_puts;
1077 struct TestGetContext *test_get = all_gets;
1079 while (test_put != NULL)
1081 if (test_put->disconnect_task != GNUNET_SCHEDULER_NO_TASK)
1082 GNUNET_SCHEDULER_cancel(test_put->disconnect_task);
1083 if (test_put->dht_handle != NULL)
1084 GNUNET_DHT_disconnect(test_put->dht_handle);
1085 test_put = test_put->next;
1088 while (test_get != NULL)
1090 if (test_get->disconnect_task != GNUNET_SCHEDULER_NO_TASK)
1091 GNUNET_SCHEDULER_cancel(test_get->disconnect_task);
1092 if (test_get->get_handle != NULL)
1093 GNUNET_DHT_get_stop(test_get->get_handle);
1094 if (test_get->dht_handle != NULL)
1095 GNUNET_DHT_disconnect(test_get->dht_handle);
1096 test_get = test_get->next;
1099 GNUNET_TESTING_daemons_stop (pg, DEFAULT_TIMEOUT, &shutdown_callback, NULL);
1101 if (dhtlog_handle != NULL)
1103 fprintf(stderr, "Update trial endtime\n");
1104 dhtlog_handle->update_trial (gets_completed);
1105 GNUNET_DHTLOG_disconnect(dhtlog_handle);
1106 dhtlog_handle = NULL;
1109 if (hostkey_meter != NULL)
1110 free_meter(hostkey_meter);
1111 if (peer_start_meter != NULL)
1112 free_meter(peer_start_meter);
1113 if (peer_connect_meter != NULL)
1114 free_meter(peer_connect_meter);
1115 if (put_meter != NULL)
1116 free_meter(put_meter);
1117 if (get_meter != NULL)
1118 free_meter(get_meter);
1124 * Forward declaration.
1127 do_put (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc);
1130 * Forward declaration.
1133 do_get (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc);
1136 * Iterator over hash map entries.
1138 * @param cls closure
1139 * @param key current key code
1140 * @param value value in the hash map
1141 * @return GNUNET_YES if we should continue to
1145 static int remove_peer_count (void *cls,
1146 const GNUNET_HashCode * key,
1149 struct FindPeerContext *find_peer_ctx = cls;
1150 struct PeerCount *peer_count = value;
1151 GNUNET_CONTAINER_heap_remove_node(find_peer_ctx->peer_min_heap, peer_count->heap_node);
1152 GNUNET_free(peer_count);
1158 * Connect to all peers in the peer group and iterate over their
1162 count_new_peers (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1164 struct FindPeerContext *find_peer_context = cls;
1165 find_peer_context->previous_peers = find_peer_context->current_peers;
1166 find_peer_context->current_peers = 0;
1167 GNUNET_TESTING_get_topology (pg, find_peer_context->count_peers_cb, find_peer_context);
1171 decrement_find_peers (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1173 struct TestFindPeer *test_find_peer = cls;
1174 GNUNET_assert(test_find_peer->find_peer_context->outstanding > 0);
1175 test_find_peer->find_peer_context->outstanding--;
1176 test_find_peer->find_peer_context->total--;
1177 if (0 == test_find_peer->find_peer_context->total)
1179 GNUNET_SCHEDULER_add_now(&count_new_peers, test_find_peer->find_peer_context);
1181 GNUNET_free(test_find_peer);
1185 * A find peer request has been sent to the server, now we will schedule a task
1186 * to wait the appropriate time to allow the request to go out and back.
1188 * @param cls closure - a TestFindPeer struct
1189 * @param tc context the task is being called with
1192 handle_find_peer_sent (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1194 struct TestFindPeer *test_find_peer = cls;
1196 GNUNET_DHT_disconnect(test_find_peer->dht_handle);
1197 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_divide(find_peer_delay, 2), &decrement_find_peers, test_find_peer);
1202 send_find_peer_request (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1204 struct TestFindPeer *test_find_peer = cls;
1206 if (test_find_peer->find_peer_context->outstanding > max_outstanding_find_peers)
1208 GNUNET_SCHEDULER_add_delayed(find_peer_offset, &send_find_peer_request, test_find_peer);
1212 test_find_peer->find_peer_context->outstanding++;
1213 if (GNUNET_TIME_absolute_get_remaining(test_find_peer->find_peer_context->endtime).rel_value == 0)
1215 GNUNET_SCHEDULER_add_now(&decrement_find_peers, test_find_peer);
1219 test_find_peer->dht_handle = GNUNET_DHT_connect(test_find_peer->daemon->cfg, 1);
1220 GNUNET_assert(test_find_peer->dht_handle != NULL);
1221 GNUNET_DHT_find_peers (test_find_peer->dht_handle,
1222 &handle_find_peer_sent, test_find_peer);
1227 * Add a connection to the find_peer_context given. This may
1228 * be complete overkill, but allows us to choose the peers with
1229 * the least connections to initiate find peer requests from.
1231 static void add_new_connection(struct FindPeerContext *find_peer_context,
1232 const struct GNUNET_PeerIdentity *first,
1233 const struct GNUNET_PeerIdentity *second)
1235 struct PeerCount *first_count;
1236 struct PeerCount *second_count;
1238 if (GNUNET_CONTAINER_multihashmap_contains(find_peer_context->peer_hash, &first->hashPubKey))
1240 first_count = GNUNET_CONTAINER_multihashmap_get(find_peer_context->peer_hash, &first->hashPubKey);
1241 GNUNET_assert(first_count != NULL);
1242 first_count->count++;
1243 GNUNET_CONTAINER_heap_update_cost(find_peer_context->peer_min_heap, first_count->heap_node, first_count->count);
1247 first_count = GNUNET_malloc(sizeof(struct PeerCount));
1248 first_count->count = 1;
1249 memcpy(&first_count->peer_id, first, sizeof(struct GNUNET_PeerIdentity));
1250 first_count->heap_node = GNUNET_CONTAINER_heap_insert(find_peer_context->peer_min_heap, first_count, first_count->count);
1251 GNUNET_CONTAINER_multihashmap_put(find_peer_context->peer_hash, &first->hashPubKey, first_count, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
1254 if (GNUNET_CONTAINER_multihashmap_contains(find_peer_context->peer_hash, &second->hashPubKey))
1256 second_count = GNUNET_CONTAINER_multihashmap_get(find_peer_context->peer_hash, &second->hashPubKey);
1257 GNUNET_assert(second_count != NULL);
1258 second_count->count++;
1259 GNUNET_CONTAINER_heap_update_cost(find_peer_context->peer_min_heap, second_count->heap_node, second_count->count);
1263 second_count = GNUNET_malloc(sizeof(struct PeerCount));
1264 second_count->count = 1;
1265 memcpy(&second_count->peer_id, second, sizeof(struct GNUNET_PeerIdentity));
1266 second_count->heap_node = GNUNET_CONTAINER_heap_insert(find_peer_context->peer_min_heap, second_count, second_count->count);
1267 GNUNET_CONTAINER_multihashmap_put(find_peer_context->peer_hash, &second->hashPubKey, second_count, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
1273 * Iterate over min heap of connections per peer. For any
1274 * peer that has 0 connections, attempt to connect them to
1277 * @param cls closure a struct FindPeerContext
1278 * @param node internal node of the heap
1279 * @param element value stored, a struct PeerCount
1280 * @param cost cost associated with the node
1281 * @return GNUNET_YES if we should continue to iterate,
1284 static int iterate_min_heap_peers (void *cls,
1285 struct GNUNET_CONTAINER_HeapNode *node,
1287 GNUNET_CONTAINER_HeapCostType cost)
1289 struct FindPeerContext *find_peer_context = cls;
1290 struct PeerCount *peer_count = element;
1291 struct GNUNET_TESTING_Daemon *d1;
1292 struct GNUNET_TESTING_Daemon *d2;
1293 struct GNUNET_TIME_Relative timeout;
1296 d1 = GNUNET_TESTING_daemon_get_by_id (pg, &peer_count->peer_id);
1297 GNUNET_assert(d1 != NULL);
1299 while ((d2 == d1) || (GNUNET_YES != GNUNET_TESTING_daemon_running(d2)))
1301 d2 = GNUNET_TESTING_daemon_get(pg, GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers));
1302 GNUNET_assert(d2 != NULL);
1305 /** Just try to connect the peers, don't worry about callbacks, etc. **/
1306 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);
1307 timeout = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, DEFAULT_CONNECT_TIMEOUT);
1308 if (GNUNET_TIME_relative_to_absolute(timeout).abs_value > find_peer_context->endtime.abs_value)
1310 timeout = GNUNET_TIME_absolute_get_remaining(find_peer_context->endtime);
1312 GNUNET_TESTING_daemons_connect(d1, d2, timeout, DEFAULT_RECONNECT_ATTEMPTS, NULL, NULL);
1314 if (GNUNET_TIME_absolute_get_remaining(find_peer_context->endtime).rel_value > 0)
1321 * Forward declaration.
1324 schedule_churn_find_peer_requests (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc);
1327 * Callback for iterating over all the peer connections of a peer group.
1328 * Used after we have churned on some peers to find which ones have zero
1329 * connections so we can make them issue find peer requests.
1332 count_peers_churn_cb (void *cls,
1333 const struct GNUNET_PeerIdentity *first,
1334 const struct GNUNET_PeerIdentity *second,
1337 struct FindPeerContext *find_peer_context = cls;
1338 struct TopologyIteratorContext *topo_ctx;
1339 struct PeerCount *peer_count;
1341 if ((first != NULL) && (second != NULL))
1343 add_new_connection(find_peer_context, first, second);
1344 find_peer_context->current_peers++;
1348 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Peer count finished (%u connections)\n",
1349 find_peer_context->current_peers);
1350 peer_count = GNUNET_CONTAINER_heap_peek(find_peer_context->peer_min_heap);
1351 GNUNET_assert(peer_count != NULL);
1352 /* 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. */
1353 /* NO they won't, because we have disabled peerinfo writing to disk (remember?) so we WILL have to give them new connections */
1354 /* Best course of action: have DHT automatically try to add peers from peerinfo on startup. This way IF peerinfo writes to file
1355 * then some peers will end up connected.
1357 * Also, find any peers that have zero connections here and set up a task to choose at random another peer in the network to
1358 * 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
1359 * until they get a peer.
1361 /* However, they won't automatically be connected to any of their previous peers... How can we handle that? */
1362 /* So now we have choices: do we want them to come back with all their connections? Probably not, but it solves this mess. */
1364 /* Second problem, which is still a problem, is that a FIND_PEER request won't work when a peer has no connections */
1367 * Okay, so here's how this *should* work now.
1369 * 1. We check the min heap for any peers that have 0 connections.
1370 * a. If any are found, we iterate over the heap and just randomly
1371 * choose another peer and ask testing to please connect the two.
1372 * This takes care of the case that a peer just randomly joins the
1373 * network. However, if there are strict topology restrictions
1374 * (imagine a ring) choosing randomly most likely won't help.
1375 * We make sure the connection attempt doesn't take longer than
1376 * the total timeout, but don't care too much about the result.
1377 * b. After that, we still schedule the find peer requests (concurrently
1378 * with the connect attempts most likely). This handles the case
1379 * that the DHT iterates over peerinfo and just needs to try to send
1380 * a message to get connected. This should handle the case that the
1381 * topology is very strict.
1383 * 2. If all peers have > 0 connections, we still send find peer requests
1384 * as long as possible (until timeout is reached) to help out those
1385 * peers that were newly churned and need more connections. This is because
1386 * once all new peers have established a single connection, they won't be
1389 * 3. Once we reach the timeout, we can do no more. We must schedule the
1390 * next iteration of get requests regardless of connections that peers
1391 * may or may not have.
1393 * Caveat: it would be nice to get peers to take data offline with them and
1394 * come back with it (or not) based on the testing framework. The
1395 * same goes for remembering previous connections, but putting either
1396 * into the general testing churn options seems like overkill because
1397 * these are very specialized cases.
1399 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);
1400 if ((peer_count->count == 0) && (GNUNET_TIME_absolute_get_remaining(find_peer_context->endtime).rel_value > 0))
1402 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Found peer with no connections, will choose some peer(s) at random to connect to!\n");
1403 GNUNET_CONTAINER_heap_iterate (find_peer_context->peer_min_heap, &iterate_min_heap_peers, find_peer_context);
1404 GNUNET_SCHEDULER_add_now(&schedule_churn_find_peer_requests, find_peer_context);
1406 else if ((GNUNET_TIME_absolute_get_remaining(find_peer_context->endtime).rel_value > 0) && (find_peer_context->last_sent != 0))
1408 GNUNET_SCHEDULER_add_now(&schedule_churn_find_peer_requests, find_peer_context);
1412 GNUNET_CONTAINER_multihashmap_iterate(find_peer_context->peer_hash, &remove_peer_count, find_peer_context);
1413 GNUNET_CONTAINER_multihashmap_destroy(find_peer_context->peer_hash);
1414 GNUNET_CONTAINER_heap_destroy(find_peer_context->peer_min_heap);
1415 GNUNET_free(find_peer_context);
1416 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Churn round %u of %llu finished, scheduling next GET round.\n", current_churn_round, churn_rounds);
1417 if (dhtlog_handle != NULL)
1419 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
1420 topo_ctx->cont = &do_get;
1421 topo_ctx->cls = all_gets;
1422 topo_ctx->timeout = DEFAULT_GET_TIMEOUT;
1423 topo_ctx->peers_seen = GNUNET_CONTAINER_multihashmap_create(num_peers);
1424 die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_add(GNUNET_TIME_relative_add(DEFAULT_GET_TIMEOUT, all_get_timeout), DEFAULT_TOPOLOGY_CAPTURE_TIMEOUT),
1425 &end_badly, "from do gets (count_peers_churn_cb)");
1426 GNUNET_SCHEDULER_add_now(&capture_current_topology, topo_ctx);
1430 die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_add(GNUNET_TIME_relative_add(DEFAULT_GET_TIMEOUT, all_get_timeout), DEFAULT_TOPOLOGY_CAPTURE_TIMEOUT),
1431 &end_badly, "from do gets (count_peers_churn_cb)");
1432 GNUNET_SCHEDULER_add_now(&do_get, all_gets);
1439 * Set up a single find peer request for each peer in the topology. Do this
1440 * until the settle time is over, limited by the number of outstanding requests
1441 * and the time allowed for each one!
1444 schedule_churn_find_peer_requests (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1446 struct FindPeerContext *find_peer_ctx = cls;
1447 struct TestFindPeer *test_find_peer;
1448 struct PeerCount *peer_count;
1451 if (find_peer_ctx->previous_peers == 0) /* First time, go slowly */
1452 find_peer_ctx->total = 1;
1453 else if (find_peer_ctx->current_peers - find_peer_ctx->previous_peers < MIN_FIND_PEER_CUTOFF)
1454 find_peer_ctx->total = find_peer_ctx->total / 2;
1455 else if (find_peer_ctx->current_peers - find_peer_ctx->previous_peers > MAX_FIND_PEER_CUTOFF) /* Found LOTS of peers, still go slowly */
1456 find_peer_ctx->total = find_peer_ctx->last_sent - (find_peer_ctx->last_sent / 4);
1458 find_peer_ctx->total = find_peer_ctx->last_sent * 4;
1460 if (find_peer_ctx->total > max_outstanding_find_peers)
1461 find_peer_ctx->total = max_outstanding_find_peers;
1463 find_peer_ctx->last_sent = find_peer_ctx->total;
1464 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Sending %u find peer messages (after churn)\n", find_peer_ctx->total);
1466 if (find_peer_ctx->total > 0)
1467 find_peer_offset = GNUNET_TIME_relative_divide(find_peer_delay, find_peer_ctx->total);
1470 find_peer_ctx->previous_peers = find_peer_ctx->current_peers;
1471 find_peer_ctx->current_peers = 0;
1472 GNUNET_TESTING_get_topology (pg, &count_peers_churn_cb, find_peer_ctx);
1476 for (i = 0; i < find_peer_ctx->total; i++)
1478 test_find_peer = GNUNET_malloc(sizeof(struct TestFindPeer));
1479 /* If we have sent requests, choose peers with a low number of connections to send requests from */
1480 peer_count = GNUNET_CONTAINER_heap_remove_root(find_peer_ctx->peer_min_heap);
1481 GNUNET_assert(peer_count != NULL);
1482 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Sending find peer request from peer with %u connections\n", peer_count->count);
1483 GNUNET_CONTAINER_multihashmap_remove(find_peer_ctx->peer_hash, &peer_count->peer_id.hashPubKey, peer_count);
1484 test_find_peer->daemon = GNUNET_TESTING_daemon_get_by_id(pg, &peer_count->peer_id);
1485 GNUNET_assert(test_find_peer->daemon != NULL);
1486 test_find_peer->find_peer_context = find_peer_ctx;
1487 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_multiply(find_peer_offset, i), &send_find_peer_request, test_find_peer);
1490 if ((find_peer_ctx->peer_hash == NULL) && (find_peer_ctx->peer_min_heap == NULL))
1492 find_peer_ctx->peer_hash = GNUNET_CONTAINER_multihashmap_create(num_peers);
1493 find_peer_ctx->peer_min_heap = GNUNET_CONTAINER_heap_create(GNUNET_CONTAINER_HEAP_ORDER_MIN);
1497 GNUNET_CONTAINER_multihashmap_iterate(find_peer_ctx->peer_hash, &remove_peer_count, find_peer_ctx);
1498 GNUNET_CONTAINER_multihashmap_destroy(find_peer_ctx->peer_hash);
1499 find_peer_ctx->peer_hash = GNUNET_CONTAINER_multihashmap_create(num_peers);
1502 GNUNET_assert(0 == GNUNET_CONTAINER_multihashmap_size(find_peer_ctx->peer_hash));
1503 GNUNET_assert(0 == GNUNET_CONTAINER_heap_get_size(find_peer_ctx->peer_min_heap));
1506 static void schedule_churn_get_topology (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1508 struct FindPeerContext *find_peer_context = cls;
1509 GNUNET_TESTING_get_topology (pg, &count_peers_churn_cb, find_peer_context);
1513 * Called when churning of the topology has finished.
1515 * @param cls closure unused
1516 * @param emsg NULL on success, or a printable error on failure
1518 static void churn_complete (void *cls, const char *emsg)
1520 struct FindPeerContext *find_peer_context = cls;
1521 struct PeerCount *peer_count;
1523 struct GNUNET_TESTING_Daemon *temp_daemon;
1524 struct TopologyIteratorContext *topo_ctx;
1525 struct GNUNET_TIME_Relative calc_timeout;
1530 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Ending test, churning of peers failed with error `%s'", emsg);
1531 GNUNET_SCHEDULER_add_now(&end_badly, (void *)emsg);
1536 * If we switched any peers on, we have to somehow force connect the new peer to
1537 * SOME bootstrap peer in the network. First schedule a task to find all peers
1538 * with no connections, then choose a random peer for each and connect them.
1540 if (find_peer_context != NULL)
1542 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "We have churned on some peers, so we must schedule find peer requests for them!\n");
1544 for (i = 0; i < num_peers; i ++)
1546 temp_daemon = GNUNET_TESTING_daemon_get(pg, i);
1547 if (GNUNET_YES == GNUNET_TESTING_daemon_running(temp_daemon))
1549 peer_count = GNUNET_malloc (sizeof(struct PeerCount));
1550 memcpy(&peer_count->peer_id, &temp_daemon->id, sizeof(struct GNUNET_PeerIdentity));
1551 GNUNET_assert(peer_count->count == 0);
1552 peer_count->heap_node = GNUNET_CONTAINER_heap_insert(find_peer_context->peer_min_heap, peer_count, peer_count->count);
1553 GNUNET_CONTAINER_multihashmap_put(find_peer_context->peer_hash, &temp_daemon->id.hashPubKey, peer_count, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
1557 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));
1558 GNUNET_SCHEDULER_add_delayed(DEFAULT_PEER_DISCONNECT_TIMEOUT, &schedule_churn_get_topology, find_peer_context);
1559 //GNUNET_TESTING_get_topology (pg, &count_peers_churn_cb, find_peer_context);
1563 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");
1564 if (dhtlog_handle != NULL)
1566 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
1567 topo_ctx->cont = &do_get;
1568 topo_ctx->cls = all_gets;
1569 topo_ctx->timeout = DEFAULT_GET_TIMEOUT;
1570 topo_ctx->peers_seen = GNUNET_CONTAINER_multihashmap_create(num_peers);
1571 calc_timeout = GNUNET_TIME_relative_add(DEFAULT_GET_TIMEOUT, all_get_timeout);
1572 calc_timeout = GNUNET_TIME_relative_add(calc_timeout, DEFAULT_TOPOLOGY_CAPTURE_TIMEOUT);
1573 calc_timeout = GNUNET_TIME_relative_add(calc_timeout, DEFAULT_PEER_DISCONNECT_TIMEOUT);
1574 die_task = GNUNET_SCHEDULER_add_delayed (calc_timeout,
1575 &end_badly, "from do gets (churn_complete)");
1576 GNUNET_SCHEDULER_add_delayed(DEFAULT_PEER_DISCONNECT_TIMEOUT, &capture_current_topology, topo_ctx);
1580 calc_timeout = GNUNET_TIME_relative_add(DEFAULT_GET_TIMEOUT, all_get_timeout);
1581 calc_timeout = GNUNET_TIME_relative_add(calc_timeout, DEFAULT_PEER_DISCONNECT_TIMEOUT);
1582 die_task = GNUNET_SCHEDULER_add_delayed (calc_timeout,
1583 &end_badly, "from do gets (churn_complete)");
1584 if (dhtlog_handle != NULL)
1585 dhtlog_handle->insert_round(DHT_ROUND_GET, rounds_finished);
1586 GNUNET_SCHEDULER_add_delayed(DEFAULT_PEER_DISCONNECT_TIMEOUT, &do_get, all_gets);
1592 * Decide how many peers to turn on or off in this round, make sure the
1593 * numbers actually make sense, then do so. This function sets in motion
1594 * churn, find peer requests for newly joined peers, and issuing get
1595 * requests once the new peers have done so.
1597 * @param cls closure (unused)
1598 * @param tc task context (unused)
1601 churn_peers (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1603 unsigned int count_running;
1604 unsigned int churn_up;
1605 unsigned int churn_down;
1606 struct GNUNET_TIME_Relative timeout;
1607 struct FindPeerContext *find_peer_context;
1609 churn_up = churn_down = 0;
1610 count_running = GNUNET_TESTING_daemons_running(pg);
1611 if (count_running > churn_array[current_churn_round])
1612 churn_down = count_running - churn_array[current_churn_round];
1613 else if (count_running < churn_array[current_churn_round])
1614 churn_up = churn_array[current_churn_round] - count_running;
1616 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Not churning any peers, topology unchanged.\n");
1618 if (churn_up > num_peers - count_running)
1620 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Churn file specified %u peers (up); only have %u!", churn_array[current_churn_round], num_peers);
1621 churn_up = num_peers - count_running;
1623 else if (churn_down > count_running)
1625 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Churn file specified %u peers (down); only have %u!", churn_array[current_churn_round], count_running);
1626 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "This will leave NO peers running (mistake in churn configuration?)!");
1627 churn_down = count_running;
1629 //timeout = GNUNET_TIME_relative_multiply(seconds_per_peer_start, churn_up > 0 ? churn_up : churn_down);
1630 //timeout = GNUNET_TIME_relative_multiply (seconds_per_peer_start, churn_up > 0 ? churn_up : churn_down);
1631 timeout = GNUNET_TIME_relative_multiply(DEFAULT_TIMEOUT, 2); /* FIXME: Lack of intelligent choice here */
1632 find_peer_context = NULL;
1633 if (churn_up > 0) /* Only need to do find peer requests if we turned new peers on */
1635 find_peer_context = GNUNET_malloc(sizeof(struct FindPeerContext));
1636 find_peer_context->count_peers_cb = &count_peers_churn_cb;
1637 find_peer_context->previous_peers = 0;
1638 find_peer_context->current_peers = 0;
1639 find_peer_context->endtime = GNUNET_TIME_relative_to_absolute(timeout);
1640 find_peer_context->peer_hash = GNUNET_CONTAINER_multihashmap_create(num_peers);
1641 find_peer_context->peer_min_heap = GNUNET_CONTAINER_heap_create(GNUNET_CONTAINER_HEAP_ORDER_MIN);
1643 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "churn_peers: want %u total, %u running, starting %u, stopping %u\n",
1644 churn_array[current_churn_round], count_running, churn_up, churn_down);
1645 GNUNET_TESTING_daemons_churn (pg, churn_down, churn_up, timeout, &churn_complete, find_peer_context);
1646 current_churn_round++;
1650 * Task to release DHT handle associated with GET request.
1653 get_stop_finished (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1655 struct TestGetContext *test_get = cls;
1656 struct TopologyIteratorContext *topo_ctx;
1658 /* The dht_handle may be null if this get was scheduled from a down peer */
1659 if (test_get->dht_handle != NULL)
1661 GNUNET_DHT_disconnect(test_get->dht_handle);
1662 outstanding_gets--; /* GET is really finished */
1663 test_get->dht_handle = NULL;
1666 /* Reset the uid (which item to search for) and the daemon (which peer to search from) for later get request iterations */
1667 if (get_from_same == GNUNET_NO)
1669 test_get->uid = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_puts);
1670 test_get->daemon = GNUNET_TESTING_daemon_get(pg, GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers));
1674 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "%d gets succeeded, %d gets failed!\n", gets_completed, gets_failed);
1676 update_meter(get_meter);
1677 if ((gets_completed + gets_failed == num_gets) && (outstanding_gets == 0))
1679 fprintf(stderr, "Canceling die task (get_stop_finished) %llu gets completed, %llu gets failed\n", gets_completed, gets_failed);
1680 GNUNET_SCHEDULER_cancel(die_task);
1681 reset_meter(put_meter);
1682 reset_meter(get_meter);
1685 * 1) Testing is completely finished, call the topology iteration dealy and die
1686 * 2) Testing is not finished, churn the network and do gets again (current_churn_round < churn_rounds)
1687 * 3) Testing is not finished, reschedule all the PUTS *and* GETS again (num_rounds > 1)
1689 if (rounds_finished == total_rounds - 1) /* Everything is finished, end testing */
1691 if (dhtlog_handle != NULL)
1693 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
1694 topo_ctx->cont = &log_dht_statistics;
1695 topo_ctx->peers_seen = GNUNET_CONTAINER_multihashmap_create(num_peers);
1696 GNUNET_SCHEDULER_add_now(&capture_current_topology, topo_ctx);
1699 GNUNET_SCHEDULER_add_now (&finish_testing, NULL);
1701 else if (current_churn_round < churns_per_round * (rounds_finished + 1)) /* Do next round of churn */
1703 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);
1707 if (dhtlog_handle != NULL)
1708 dhtlog_handle->insert_round(DHT_ROUND_CHURN, rounds_finished);
1710 GNUNET_SCHEDULER_add_now(&churn_peers, NULL);
1712 else if (rounds_finished < total_rounds - 1) /* Start a new complete round */
1717 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Round %u of %llu finished, scheduling next round.\n", rounds_finished, total_rounds);
1719 /** We reset the peer daemon for puts and gets on each disconnect, so all we need to do is start another round! */
1720 if (GNUNET_YES == in_dht_replication) /* Replication done in DHT, don't redo puts! */
1722 if (dhtlog_handle != NULL)
1723 dhtlog_handle->insert_round(DHT_ROUND_GET, rounds_finished);
1725 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),
1726 &end_badly, "from do gets (next round)");
1727 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, round_delay), &do_get, all_gets);
1731 if (dhtlog_handle != NULL)
1732 dhtlog_handle->insert_round(DHT_ROUND_NORMAL, rounds_finished);
1733 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)),
1734 &end_badly, "from do puts");
1735 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, round_delay), &do_put, all_puts);
1742 * Task to release get handle.
1745 get_stop_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1747 struct TestGetContext *test_get = cls;
1749 if (tc->reason == GNUNET_SCHEDULER_REASON_TIMEOUT)
1751 GNUNET_assert(test_get->get_handle != NULL);
1752 GNUNET_DHT_get_stop(test_get->get_handle);
1753 test_get->get_handle = NULL;
1754 test_get->disconnect_task = GNUNET_SCHEDULER_NO_TASK;
1755 GNUNET_SCHEDULER_add_now (&get_stop_finished, test_get);
1759 * Iterator called if the GET request initiated returns a response.
1761 * @param cls closure
1762 * @param exp when will this value expire
1763 * @param key key of the result
1764 * @param get_path NULL-terminated array of pointers
1765 * to the peers on reverse GET path (or NULL if not recorded)
1766 * @param put_path NULL-terminated array of pointers
1767 * to the peers on the PUT path (or NULL if not recorded)
1768 * @param type type of the result
1769 * @param size number of bytes in data
1770 * @param data pointer to the result data
1773 get_result_iterator (void *cls,
1774 struct GNUNET_TIME_Absolute exp,
1775 const GNUNET_HashCode * key,
1776 const struct GNUNET_PeerIdentity * const *get_path,
1777 const struct GNUNET_PeerIdentity * const *put_path,
1778 enum GNUNET_BLOCK_Type type,
1782 struct TestGetContext *test_get = cls;
1784 if (test_get->succeeded == GNUNET_YES)
1785 return; /* Get has already been successful, probably ending now */
1787 if (0 != memcmp(&known_keys[test_get->uid], key, sizeof (GNUNET_HashCode))) /* || (0 != memcmp(original_data, data, sizeof(original_data))))*/
1790 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Key or data is not the same as was inserted!\n");
1795 test_get->succeeded = GNUNET_YES;
1798 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Received correct GET response!\n");
1800 GNUNET_SCHEDULER_cancel(test_get->disconnect_task);
1801 GNUNET_SCHEDULER_add_continuation(&get_stop_task, test_get, GNUNET_SCHEDULER_REASON_PREREQ_DONE);
1807 * Set up some data, and call API PUT function
1810 do_get (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1812 struct TestGetContext *test_get = cls;
1816 GNUNET_SCHEDULER_cancel(die_task);
1817 GNUNET_SCHEDULER_add_now(&finish_testing, NULL);
1820 if (test_get == NULL)
1821 return; /* End of the list */
1823 /* Set this here in case we are re-running gets */
1824 test_get->succeeded = GNUNET_NO;
1826 if (GNUNET_YES != GNUNET_TESTING_daemon_running(test_get->daemon)) /* If the peer has been churned off, don't try issuing request from it! */
1828 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Peer we should issue get request from is down, skipping.\n");
1830 GNUNET_SCHEDULER_add_now (&get_stop_finished, test_get);
1831 GNUNET_SCHEDULER_add_now (&do_get, test_get->next);
1835 /* Check if more gets are outstanding than should be */
1836 if (outstanding_gets > max_outstanding_gets)
1838 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MILLISECONDS, 200), &do_get, test_get);
1842 /* Connect to the first peer's DHT */
1843 test_get->dht_handle = GNUNET_DHT_connect(test_get->daemon->cfg, 10);
1844 GNUNET_assert(test_get->dht_handle != NULL);
1847 /* Insert the data at the first peer */
1848 test_get->get_handle = GNUNET_DHT_get_start(test_get->dht_handle,
1850 GNUNET_BLOCK_TYPE_TEST,
1851 &known_keys[test_get->uid],
1856 &get_result_iterator,
1860 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Starting get for uid %u from peer %s\n",
1862 test_get->daemon->shortname);
1864 test_get->disconnect_task = GNUNET_SCHEDULER_add_delayed(get_timeout, &get_stop_task, test_get);
1866 /* Schedule the next request in the linked list of get requests */
1867 GNUNET_SCHEDULER_add_now (&do_get, test_get->next);
1871 * Called when the PUT request has been transmitted to the DHT service.
1872 * Schedule the GET request for some time in the future.
1875 put_finished (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1877 struct TestPutContext *test_put = cls;
1878 struct TopologyIteratorContext *topo_ctx;
1882 if (tc->reason == GNUNET_SCHEDULER_REASON_TIMEOUT)
1883 fprintf(stderr, "PUT Request failed!\n");
1885 /* Reset the daemon (which peer to insert at) for later put request iterations */
1886 if (replicate_same == GNUNET_NO)
1887 test_put->daemon = GNUNET_TESTING_daemon_get(pg, GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers));
1889 GNUNET_SCHEDULER_cancel(test_put->disconnect_task);
1890 test_put->disconnect_task = GNUNET_SCHEDULER_add_now(&put_disconnect_task, test_put);
1891 if (GNUNET_YES == update_meter(put_meter))
1893 GNUNET_assert(outstanding_puts == 0);
1894 GNUNET_SCHEDULER_cancel (die_task);
1895 if (dhtlog_handle != NULL)
1897 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
1898 topo_ctx->cont = &do_get;
1899 topo_ctx->cls = all_gets;
1900 topo_ctx->timeout = DEFAULT_GET_TIMEOUT;
1901 topo_ctx->peers_seen = GNUNET_CONTAINER_multihashmap_create(num_peers);
1902 die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_add(GNUNET_TIME_relative_add(DEFAULT_GET_TIMEOUT, all_get_timeout), DEFAULT_TOPOLOGY_CAPTURE_TIMEOUT),
1903 &end_badly, "from do gets (put finished)");
1904 GNUNET_SCHEDULER_add_now(&capture_current_topology, topo_ctx);
1908 fprintf(stderr, "Scheduling die task (put finished)\n");
1909 die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_add(DEFAULT_GET_TIMEOUT, all_get_timeout),
1910 &end_badly, "from do gets (put finished)");
1911 GNUNET_SCHEDULER_add_delayed(DEFAULT_GET_TIMEOUT, &do_get, all_gets);
1918 * Set up some data, and call API PUT function
1921 do_put (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1923 struct TestPutContext *test_put = cls;
1924 char data[test_data_size]; /* Made up data to store */
1928 if (test_put == NULL)
1929 return; /* End of list */
1931 if (GNUNET_YES != GNUNET_TESTING_daemon_running(test_put->daemon)) /* If the peer has been churned off, don't try issuing request from it! */
1933 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Peer we should issue put request at is down, skipping.\n");
1934 update_meter(put_meter);
1935 GNUNET_SCHEDULER_add_now (&do_put, test_put->next);
1939 for (i = 0; i < sizeof(data); i++)
1941 memset(&data[i], GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, UINT32_MAX), 1);
1944 if (outstanding_puts > max_outstanding_puts)
1946 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MILLISECONDS, 200), &do_put, test_put);
1951 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Starting put for uid %u from peer %s\n",
1953 test_put->daemon->shortname);
1955 test_put->dht_handle = GNUNET_DHT_connect(test_put->daemon->cfg, 10);
1957 GNUNET_assert(test_put->dht_handle != NULL);
1959 GNUNET_DHT_put(test_put->dht_handle,
1960 &known_keys[test_put->uid],
1963 GNUNET_BLOCK_TYPE_TEST,
1965 GNUNET_TIME_UNIT_FOREVER_ABS,
1967 &put_finished, test_put);
1968 test_put->disconnect_task = GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_get_forever(), &put_disconnect_task, test_put);
1969 rand = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, 2);
1970 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, rand), &do_put, test_put->next);
1974 schedule_find_peer_requests (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc);
1977 setup_malicious_peers (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc);
1980 * Given a number of total peers and a bucket size, estimate the number of
1981 * connections in a perfect kademlia topology.
1983 static unsigned int connection_estimate(unsigned int peer_count, unsigned int bucket_size)
1986 unsigned int filled;
1990 while (i >= bucket_size)
1995 filled++; /* Add one filled bucket to account for one "half full" and some miscellaneous */
1996 return filled * bucket_size * peer_count;
2002 * Callback for iterating over all the peer connections of a peer group.
2005 count_peers_cb (void *cls,
2006 const struct GNUNET_PeerIdentity *first,
2007 const struct GNUNET_PeerIdentity *second,
2010 struct FindPeerContext *find_peer_context = cls;
2011 if ((first != NULL) && (second != NULL))
2013 add_new_connection(find_peer_context, first, second);
2014 find_peer_context->current_peers++;
2018 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Peer count finished (%u connections), %u new peers, connection estimate %u (target %u)\n",
2019 find_peer_context->current_peers,
2020 find_peer_context->current_peers - find_peer_context->previous_peers,
2021 connection_estimate(num_peers, DEFAULT_BUCKET_SIZE),
2022 target_total_connections);
2024 if ((find_peer_context->last_sent < 8) ||
2025 ((find_peer_context->current_peers - find_peer_context->previous_peers > FIND_PEER_THRESHOLD) &&
2026 (find_peer_context->current_peers < 2 * connection_estimate(num_peers, DEFAULT_BUCKET_SIZE)) &&
2027 (GNUNET_TIME_absolute_get_remaining(find_peer_context->endtime).rel_value > 0) &&
2028 (find_peer_context->current_peers < target_total_connections)))
2030 GNUNET_SCHEDULER_add_now(&schedule_find_peer_requests, find_peer_context);
2034 GNUNET_CONTAINER_multihashmap_iterate(find_peer_context->peer_hash, &remove_peer_count, find_peer_context);
2035 GNUNET_CONTAINER_multihashmap_destroy(find_peer_context->peer_hash);
2036 GNUNET_CONTAINER_heap_destroy(find_peer_context->peer_min_heap);
2037 GNUNET_free(find_peer_context);
2038 fprintf(stderr, "Not sending any more find peer requests.\n");
2041 if (GNUNET_YES == malicious_after_settle)
2043 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "calling setup_malicious_peers\n");
2044 GNUNET_SCHEDULER_add_now(&setup_malicious_peers, NULL);
2053 * Set up a single find peer request for each peer in the topology. Do this
2054 * until the settle time is over, limited by the number of outstanding requests
2055 * and the time allowed for each one!
2058 schedule_find_peer_requests (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
2060 struct FindPeerContext *find_peer_ctx = cls;
2061 struct TestFindPeer *test_find_peer;
2062 struct PeerCount *peer_count;
2066 if (find_peer_ctx->previous_peers == 0) /* First time, go slowly */
2067 find_peer_ctx->total = 1;
2068 else if (find_peer_ctx->current_peers - find_peer_ctx->previous_peers > MAX_FIND_PEER_CUTOFF) /* Found LOTS of peers, still go slowly */
2069 find_peer_ctx->total = find_peer_ctx->last_sent - (find_peer_ctx->last_sent / 8);
2071 find_peer_ctx->total = find_peer_ctx->last_sent * 2;
2073 if (find_peer_ctx->total > max_outstanding_find_peers)
2074 find_peer_ctx->total = max_outstanding_find_peers;
2076 if (find_peer_ctx->total > num_peers) /* Don't try to send more messages than we have peers! */
2077 find_peer_ctx->total = num_peers;
2079 find_peer_ctx->last_sent = find_peer_ctx->total;
2080 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Sending %u find peer messages (goal at least %u connections)\n", find_peer_ctx->total, target_total_connections);
2082 find_peer_offset = GNUNET_TIME_relative_divide(find_peer_delay, find_peer_ctx->total);
2083 for (i = 0; i < find_peer_ctx->total; i++)
2085 test_find_peer = GNUNET_malloc(sizeof(struct TestFindPeer));
2086 if (find_peer_ctx->previous_peers == 0) /* If we haven't sent any requests yet, choose random peers */
2089 * Attempt to spread find peer requests across even sections of the peer address
2090 * space. Choose basically 1 peer in every num_peers / max_outstanding_requests
2091 * each time, then offset it by a randomish value.
2093 * For instance, if num_peers is 100 and max_outstanding is 10, first chosen peer
2094 * will be between 0 - 10, second between 10 - 20, etc.
2096 random = (num_peers / find_peer_ctx->total) * i;
2097 random = random + GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, (num_peers / find_peer_ctx->total));
2098 if (random >= num_peers)
2100 random = random - num_peers;
2103 random = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers);
2105 test_find_peer->daemon = GNUNET_TESTING_daemon_get(pg, random);
2107 else /* If we have sent requests, choose peers with a low number of connections to send requests from */
2109 peer_count = GNUNET_CONTAINER_heap_remove_root(find_peer_ctx->peer_min_heap);
2110 GNUNET_assert(GNUNET_YES == GNUNET_CONTAINER_multihashmap_remove(find_peer_ctx->peer_hash, &peer_count->peer_id.hashPubKey, peer_count));
2111 test_find_peer->daemon = GNUNET_TESTING_daemon_get_by_id(pg, &peer_count->peer_id);
2112 GNUNET_assert(test_find_peer->daemon != NULL);
2115 test_find_peer->find_peer_context = find_peer_ctx;
2116 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_multiply(find_peer_offset, i), &send_find_peer_request, test_find_peer);
2119 if ((find_peer_ctx->peer_hash == NULL) && (find_peer_ctx->peer_min_heap == NULL))
2121 find_peer_ctx->peer_hash = GNUNET_CONTAINER_multihashmap_create(num_peers);
2122 find_peer_ctx->peer_min_heap = GNUNET_CONTAINER_heap_create(GNUNET_CONTAINER_HEAP_ORDER_MIN);
2126 GNUNET_CONTAINER_multihashmap_iterate(find_peer_ctx->peer_hash, &remove_peer_count, find_peer_ctx);
2127 GNUNET_CONTAINER_multihashmap_destroy(find_peer_ctx->peer_hash);
2128 find_peer_ctx->peer_hash = GNUNET_CONTAINER_multihashmap_create(num_peers);
2131 GNUNET_assert(0 == GNUNET_CONTAINER_multihashmap_size(find_peer_ctx->peer_hash));
2132 GNUNET_assert(0 == GNUNET_CONTAINER_heap_get_size(find_peer_ctx->peer_min_heap));
2137 * Convert unique ID to hash code.
2139 * @param uid unique ID to convert
2140 * @param hash set to uid (extended with zeros)
2143 hash_from_uid (uint32_t uid, GNUNET_HashCode *hash)
2145 memset (hash, 0, sizeof (GNUNET_HashCode));
2146 *((uint32_t *) hash) = uid;
2151 * Set up all of the put and get operations we want to do
2152 * in the current round. Allocate data structure for each,
2153 * add to list, then schedule the actual PUT operations.
2156 setup_puts_and_gets (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
2159 struct TestPutContext *test_put;
2160 struct TestGetContext *test_get;
2162 GNUNET_HashCode uid_hash;
2165 int remember[num_puts][num_peers];
2166 memset(&remember, 0, sizeof(int) * num_puts * num_peers);
2168 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "in setup_puts_and_gets\n");
2169 known_keys = GNUNET_malloc(sizeof(GNUNET_HashCode) * num_puts);
2170 for (i = 0; i < num_puts; i++)
2172 test_put = GNUNET_malloc(sizeof(struct TestPutContext));
2174 GNUNET_CRYPTO_hash_create_random (GNUNET_CRYPTO_QUALITY_WEAK, &known_keys[i]);
2175 /* Set first X bits to match the chosen sybil location if we want to do the sybil attack! */
2176 if (GNUNET_YES == malicious_sybil)
2178 memcpy(&known_keys[i], &sybil_target, sizeof(GNUNET_HashCode) / 2);
2179 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Distance between sybil location and key is %d\n", GNUNET_CRYPTO_hash_matching_bits(&known_keys[i], &sybil_target));
2181 temp_peer = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers);
2182 test_put->daemon = GNUNET_TESTING_daemon_get(pg, temp_peer);
2183 /* Don't start PUTs at malicious peers! */
2184 if (malicious_bloom != NULL)
2187 hash_from_uid(temp_peer, &uid_hash);
2188 while ((GNUNET_YES == GNUNET_CONTAINER_bloomfilter_test(malicious_bloom, &uid_hash)) && (count < num_peers))
2190 temp_peer = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers);
2191 hash_from_uid(temp_peer, &uid_hash);
2192 test_put->daemon = GNUNET_TESTING_daemon_get(pg, temp_peer);
2195 if (count == num_peers)
2196 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Couldn't find peer not in malicious bloom to select!\n");
2199 test_put->next = all_puts;
2200 all_puts = test_put;
2203 for (i = 0; i < num_gets; i++)
2205 test_get = GNUNET_malloc(sizeof(struct TestGetContext));
2206 test_get->uid = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_puts);
2208 while (remember[test_get->uid][temp_daemon] == 1)
2209 temp_daemon = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers);
2210 remember[test_get->uid][temp_daemon] = 1;
2212 temp_peer = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers);
2213 test_get->daemon = GNUNET_TESTING_daemon_get(pg, temp_peer);
2214 /* Don't start GETs at malicious peers! */
2215 if (malicious_bloom != NULL)
2217 hash_from_uid(temp_peer, &uid_hash);
2219 while ((GNUNET_YES == GNUNET_CONTAINER_bloomfilter_test(malicious_bloom, &uid_hash)) && (count < num_peers))
2221 temp_peer = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers);
2222 hash_from_uid(temp_peer, &uid_hash);
2223 test_get->daemon = GNUNET_TESTING_daemon_get(pg, temp_peer);
2226 if (count == num_peers)
2227 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Couldn't find peer not in malicious bloom to select!\n");
2229 test_get->next = all_gets;
2230 all_gets = test_get;
2233 /*GNUNET_SCHEDULER_cancel (die_task);*/
2234 die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, num_puts * 2),
2235 &end_badly, "from do puts");
2236 GNUNET_SCHEDULER_add_now (&do_put, all_puts);
2241 * Set up some all of the put and get operations we want
2242 * to do. Allocate data structure for each, add to list,
2243 * then call actual insert functions.
2246 continue_puts_and_gets (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
2250 struct TopologyIteratorContext *topo_ctx;
2251 struct FindPeerContext *find_peer_context;
2252 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "In continue_puts_and_gets\n");
2253 if (dhtlog_handle != NULL)
2255 if (settle_time >= 180 * 2)
2256 max = (settle_time / 180) - 2;
2259 for (i = 1; i < max; i++)
2261 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
2262 topo_ctx->current_iteration = i;
2263 topo_ctx->total_iterations = max;
2264 topo_ctx->peers_seen = GNUNET_CONTAINER_multihashmap_create(num_peers);
2265 //fprintf(stderr, "scheduled topology iteration in %d minutes\n", i);
2266 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MINUTES, i * 3), &capture_current_topology, topo_ctx);
2268 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
2269 topo_ctx->cont = &setup_puts_and_gets;
2270 topo_ctx->peers_seen = GNUNET_CONTAINER_multihashmap_create(num_peers);
2271 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "setting setup_puts_and_gets for %d seconds in the future\n", settle_time + 10);
2272 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, (settle_time + 10)), &capture_current_topology, topo_ctx);
2275 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, (settle_time + 10)), &setup_puts_and_gets, NULL);
2277 if (dhtlog_handle != NULL)
2278 dhtlog_handle->insert_round(DHT_ROUND_NORMAL, rounds_finished);
2281 if ((GNUNET_YES != malicious_after_settle) || (settle_time == 0))
2283 GNUNET_SCHEDULER_add_now(&setup_malicious_peers, NULL);
2287 if ((GNUNET_YES == do_find_peer) && (settle_time > 0))
2289 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Scheduling find peer requests during \"settle\" time.\n");
2290 find_peer_context = GNUNET_malloc(sizeof(struct FindPeerContext));
2291 find_peer_context->count_peers_cb = &count_peers_cb;
2292 find_peer_context->endtime = GNUNET_TIME_relative_to_absolute(GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, settle_time));
2293 GNUNET_SCHEDULER_add_now(&schedule_find_peer_requests, find_peer_context);
2297 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Assuming automatic DHT find peer requests.\n");
2302 * Task to release DHT handles
2305 malicious_disconnect_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
2307 struct MaliciousContext *ctx = cls;
2308 outstanding_malicious--;
2309 malicious_completed++;
2310 ctx->disconnect_task = GNUNET_SCHEDULER_NO_TASK;
2311 GNUNET_DHT_disconnect(ctx->dht_handle);
2312 ctx->dht_handle = NULL;
2315 if (malicious_completed == malicious_getters + malicious_putters + malicious_droppers)
2317 fprintf(stderr, "Finished setting all malicious peers up!\n");
2323 * Task to release DHT handles
2326 malicious_done_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
2328 struct MaliciousContext *ctx = cls;
2329 GNUNET_SCHEDULER_cancel(ctx->disconnect_task);
2330 GNUNET_SCHEDULER_add_now(&malicious_disconnect_task, ctx);
2334 * Set up some data, and call API PUT function
2337 set_malicious (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
2339 struct MaliciousContext *ctx = cls;
2341 if (outstanding_malicious > DEFAULT_MAX_OUTSTANDING_GETS)
2343 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MILLISECONDS, 100), &set_malicious, ctx);
2347 if (ctx->dht_handle == NULL)
2349 ctx->dht_handle = GNUNET_DHT_connect(ctx->daemon->cfg, 1);
2350 outstanding_malicious++;
2353 GNUNET_assert(ctx->dht_handle != NULL);
2357 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Setting peer %s malicious type %d\n",
2358 ctx->daemon->shortname, ctx->malicious_type);
2361 switch (ctx->malicious_type)
2363 case GNUNET_MESSAGE_TYPE_DHT_MALICIOUS_GET:
2364 GNUNET_DHT_set_malicious_getter(ctx->dht_handle, malicious_get_frequency);
2365 GNUNET_SCHEDULER_add_now (&malicious_done_task, ctx);
2367 case GNUNET_MESSAGE_TYPE_DHT_MALICIOUS_PUT:
2368 GNUNET_DHT_set_malicious_putter(ctx->dht_handle, malicious_put_frequency);
2369 GNUNET_SCHEDULER_add_now (&malicious_done_task, ctx);
2371 case GNUNET_MESSAGE_TYPE_DHT_MALICIOUS_DROP:
2372 GNUNET_DHT_set_malicious_dropper(ctx->dht_handle);
2373 GNUNET_SCHEDULER_add_now (&malicious_done_task, ctx);
2379 ctx->disconnect_task = GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_UNIT_FOREVER_REL,
2380 &malicious_disconnect_task, ctx);
2386 * Choose the next peer from the peer group to set as malicious.
2387 * If we are doing a sybil attack, find the nearest peer to the
2388 * sybil location that has not already been set malicious. Otherwise
2389 * just choose a random not already chosen peer.
2391 * @param pg the peer group
2392 * @param bloom the bloomfilter which contains all peer already
2393 * chosen to be malicious
2396 choose_next_malicious (struct GNUNET_TESTING_PeerGroup *pg, struct GNUNET_CONTAINER_BloomFilter *bloom)
2403 struct GNUNET_TESTING_Daemon *temp_daemon;
2404 GNUNET_HashCode uid_hash;
2408 GNUNET_assert (bloom != NULL);
2410 if (GNUNET_YES == malicious_sybil)
2412 for (i = 0; i < num_peers; i++)
2414 temp_daemon = GNUNET_TESTING_daemon_get(pg, i);
2415 hash_from_uid(i, &uid_hash);
2416 /* Check if this peer matches the bloomfilter */
2417 if ((GNUNET_NO == GNUNET_TESTING_daemon_running(temp_daemon)) || (GNUNET_YES == GNUNET_CONTAINER_bloomfilter_test (bloom, &uid_hash)))
2420 bits_match = GNUNET_CRYPTO_hash_matching_bits (&temp_daemon->id.hashPubKey, &sybil_target);
2421 if (bits_match >= curr_distance)
2423 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Found nearer peer %s to %s, old matching bits %d, new %d\n", GNUNET_i2s(&temp_daemon->id), GNUNET_h2s(&sybil_target), curr_distance, bits_match);
2425 curr_distance = bits_match;
2431 nearest = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers);
2432 hash_from_uid(nearest, &uid_hash);
2434 while ((GNUNET_YES == GNUNET_CONTAINER_bloomfilter_test (bloom, &uid_hash)) && (count < num_peers))
2436 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Peer %d already in bloom (tried %d times)\n", nearest, count);
2437 nearest = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers);
2438 hash_from_uid(nearest, &uid_hash);
2441 if (count == num_peers)
2442 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Tried %d times to find a peer, selecting %d at random!!\n", count, nearest);
2449 * Select randomly from set of known peers,
2450 * set the desired number of peers to the
2451 * proper malicious types.
2454 setup_malicious_peers (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
2456 struct MaliciousContext *ctx;
2458 uint32_t temp_daemon;
2459 GNUNET_HashCode uid_hash;
2461 for (i = 0; i < malicious_getters; i++)
2463 ctx = GNUNET_malloc(sizeof(struct MaliciousContext));
2464 temp_daemon = choose_next_malicious(pg, malicious_bloom);
2465 ctx->daemon = GNUNET_TESTING_daemon_get(pg, temp_daemon);
2466 hash_from_uid(temp_daemon, &uid_hash);
2467 GNUNET_CONTAINER_bloomfilter_add(malicious_bloom, &uid_hash);
2468 ctx->malicious_type = GNUNET_MESSAGE_TYPE_DHT_MALICIOUS_GET;
2469 GNUNET_SCHEDULER_add_now (&set_malicious, ctx);
2473 for (i = 0; i < malicious_putters; i++)
2475 ctx = GNUNET_malloc(sizeof(struct MaliciousContext));
2476 temp_daemon = choose_next_malicious(pg, malicious_bloom);
2477 ctx->daemon = GNUNET_TESTING_daemon_get(pg, temp_daemon);
2478 hash_from_uid(temp_daemon, &uid_hash);
2479 GNUNET_CONTAINER_bloomfilter_add(malicious_bloom, &uid_hash);
2480 ctx->malicious_type = GNUNET_MESSAGE_TYPE_DHT_MALICIOUS_PUT;
2481 GNUNET_SCHEDULER_add_now (&set_malicious, ctx);
2485 for (i = 0; i < malicious_droppers; i++)
2487 ctx = GNUNET_malloc(sizeof(struct MaliciousContext));
2488 temp_daemon = choose_next_malicious(pg, malicious_bloom);
2489 ctx->daemon = GNUNET_TESTING_daemon_get(pg, temp_daemon);
2490 hash_from_uid(temp_daemon, &uid_hash);
2491 GNUNET_CONTAINER_bloomfilter_add(malicious_bloom, &uid_hash);
2492 ctx->malicious_type = GNUNET_MESSAGE_TYPE_DHT_MALICIOUS_DROP;
2493 GNUNET_SCHEDULER_add_now (&set_malicious, ctx);
2499 * This function is called whenever a connection attempt is finished between two of
2500 * the started peers (started with GNUNET_TESTING_daemons_start). The total
2501 * number of times this function is called should equal the number returned
2502 * from the GNUNET_TESTING_connect_topology call.
2504 * The emsg variable is NULL on success (peers connected), and non-NULL on
2505 * failure (peers failed to connect).
2508 topology_callback (void *cls,
2509 const struct GNUNET_PeerIdentity *first,
2510 const struct GNUNET_PeerIdentity *second,
2512 const struct GNUNET_CONFIGURATION_Handle *first_cfg,
2513 const struct GNUNET_CONFIGURATION_Handle *second_cfg,
2514 struct GNUNET_TESTING_Daemon *first_daemon,
2515 struct GNUNET_TESTING_Daemon *second_daemon,
2518 struct TopologyIteratorContext *topo_ctx;
2519 unsigned long long duration;
2520 unsigned long long total_duration;
2521 unsigned int new_connections;
2523 if (GNUNET_TIME_absolute_get_difference (connect_last_time,
2524 GNUNET_TIME_absolute_get()).rel_value > GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, CONN_UPDATE_DURATION).rel_value)
2526 /* Get number of new connections */
2527 new_connections = total_connections - previous_connections;
2528 /* Get duration in seconds */
2529 duration = GNUNET_TIME_absolute_get_difference (connect_last_time,
2530 GNUNET_TIME_absolute_get()).rel_value / 1000;
2531 total_duration = GNUNET_TIME_absolute_get_difference (connect_start_time,
2532 GNUNET_TIME_absolute_get()).rel_value / 1000;
2533 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Conns/sec in last %d seconds: %f, Conns/sec for entire duration: %f\n", CONN_UPDATE_DURATION, (float)new_connections / duration, (float)total_connections / total_duration);
2534 connect_last_time = GNUNET_TIME_absolute_get();
2535 previous_connections = total_connections;
2540 total_connections++;
2542 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "connected peer %s to peer %s, distance %u\n",
2543 first_daemon->shortname,
2544 second_daemon->shortname,
2550 failed_connections++;
2551 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Failed to connect peer %s to peer %s with error :\n%s\n",
2552 first_daemon->shortname,
2553 second_daemon->shortname, emsg);
2555 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Failed to connect peer %s to peer %s with error :\n%s\n",
2556 first_daemon->shortname,
2557 second_daemon->shortname, emsg);
2561 GNUNET_assert(peer_connect_meter != NULL);
2562 if (GNUNET_YES == update_meter(peer_connect_meter))
2565 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2566 "Created %d total connections, which is our target number! Starting next phase of testing.\n",
2569 if (failed_connections > 0)
2570 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "While connecting, had %u failed connections.\n", failed_connections);
2571 if (dhtlog_handle != NULL)
2573 dhtlog_handle->update_connections (total_connections);
2574 dhtlog_handle->insert_topology(expected_connections);
2577 GNUNET_SCHEDULER_cancel (die_task);
2579 if (dhtlog_handle != NULL)
2581 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
2582 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Setting continue gets and puts as topo_cont\n");
2583 topo_ctx->cont = &continue_puts_and_gets;
2584 topo_ctx->peers_seen = GNUNET_CONTAINER_multihashmap_create(num_peers);
2585 GNUNET_SCHEDULER_add_now(&capture_current_topology, topo_ctx);
2589 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "For some reason, NOT scheduling final topology capture (settle_time %d, dhtlog_handle %s)!\n", settle_time, dhtlog_handle);
2590 GNUNET_SCHEDULER_add_now(&continue_puts_and_gets, NULL);
2593 else if (total_connections + failed_connections == expected_connections)
2595 GNUNET_SCHEDULER_cancel (die_task);
2596 die_task = GNUNET_SCHEDULER_add_now (&end_badly, "from topology_callback (too many failed connections)");
2601 peers_started_callback (void *cls,
2602 const struct GNUNET_PeerIdentity *id,
2603 const struct GNUNET_CONFIGURATION_Handle *cfg,
2604 struct GNUNET_TESTING_Daemon *d, const char *emsg)
2608 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Failed to start daemon with error: `%s'\n",
2612 GNUNET_assert (id != NULL);
2615 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Started daemon %llu out of %llu\n",
2616 (num_peers - peers_left) + 1, num_peers);
2621 if (GNUNET_YES == update_meter(peer_start_meter))
2624 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2625 "All %d daemons started, now connecting peers!\n",
2628 GNUNET_SCHEDULER_cancel (die_task);
2630 expected_connections = UINT_MAX;
2631 if ((pg != NULL) && (peers_left == 0))
2633 connect_start_time = GNUNET_TIME_absolute_get();
2634 expected_connections = GNUNET_TESTING_connect_topology (pg, connect_topology, connect_topology_option, connect_topology_option_modifier, NULL, NULL);
2636 peer_connect_meter = create_meter(expected_connections, "Peer connection ", GNUNET_YES);
2637 fprintf(stderr, "Have %d expected connections\n", expected_connections);
2640 if (expected_connections == GNUNET_SYSERR)
2642 die_task = GNUNET_SCHEDULER_add_now (&end_badly, "from connect topology (bad return)");
2645 die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, DEFAULT_CONNECT_TIMEOUT * expected_connections),
2646 &end_badly, "from connect topology (timeout)");
2655 peers_left = num_peers; /* Reset counter */
2656 if (GNUNET_TESTING_create_topology (pg, topology, blacklist_topology, blacklist_transports) != GNUNET_SYSERR)
2658 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2659 "Topology set up, now starting peers!\n");
2660 GNUNET_TESTING_daemons_continue_startup(pg);
2664 GNUNET_SCHEDULER_cancel (die_task);
2665 die_task = GNUNET_SCHEDULER_add_now (&end_badly, "from create topology (bad return)");
2667 GNUNET_free_non_null(blacklist_transports);
2668 GNUNET_SCHEDULER_cancel (die_task);
2669 die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(seconds_per_peer_start, num_peers),
2670 &end_badly, "from continue startup (timeout)");
2674 * Callback indicating that the hostkey was created for a peer.
2677 * @param id the peer identity
2678 * @param d the daemon handle (pretty useless at this point, remove?)
2679 * @param emsg non-null on failure
2682 hostkey_callback (void *cls,
2683 const struct GNUNET_PeerIdentity *id,
2684 struct GNUNET_TESTING_Daemon *d,
2689 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Hostkey callback received error: %s\n", emsg);
2693 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2694 "Hostkey (%d/%d) created for peer `%s'\n",
2695 num_peers - peers_left, num_peers, GNUNET_i2s(id));
2699 if (GNUNET_YES == update_meter(hostkey_meter))
2701 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2702 "All %d hostkeys created, now creating topology!\n",
2704 GNUNET_SCHEDULER_cancel (die_task);
2705 /* Set up task in case topology creation doesn't finish
2706 * within a reasonable amount of time */
2707 die_task = GNUNET_SCHEDULER_add_delayed (DEFAULT_TOPOLOGY_TIMEOUT,
2708 &end_badly, "from create_topology");
2709 GNUNET_SCHEDULER_add_now(&create_topology, NULL);
2718 const char *cfgfile, const struct GNUNET_CONFIGURATION_Handle *cfg)
2721 struct GNUNET_DHTLOG_TrialInfo trial_info;
2722 struct GNUNET_TESTING_Host *hosts;
2723 struct GNUNET_TESTING_Host *temphost;
2724 struct GNUNET_TESTING_Host *tempnext;
2726 char *connect_topology_str;
2727 char *blacklist_topology_str;
2728 char *connect_topology_option_str;
2729 char *connect_topology_option_modifier_string;
2731 char *topology_percentage_str;
2732 float topology_percentage;
2733 char *topology_probability_str;
2735 float topology_probability;
2736 unsigned long long temp_config_number;
2737 unsigned long long trial_to_run;
2740 int strict_kademlia;
2744 char *churn_filename;
2751 rounds_finished = 0;
2752 memset(&trial_info, 0, sizeof(struct GNUNET_DHTLOG_TrialInfo));
2753 /* Get path from configuration file */
2754 if (GNUNET_YES != GNUNET_CONFIGURATION_get_value_string(cfg, "paths", "servicehome", &test_directory))
2760 /* Get number of peers to start from configuration */
2761 if (GNUNET_SYSERR ==
2762 GNUNET_CONFIGURATION_get_value_number (cfg, "testing", "num_peers",
2765 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2766 "Number of peers must be specified in section %s option %s\n", "TESTING", "NUM_PEERS");
2768 GNUNET_assert(num_peers > 0 && num_peers < ULONG_MAX);
2771 * Get DHT specific testing options.
2773 if ((GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht_testing", "mysql_logging")) ||
2774 (GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht_testing", "mysql_logging_extended")))
2776 dhtlog_handle = GNUNET_DHTLOG_connect(cfg);
2777 if (dhtlog_handle == NULL)
2779 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2780 "Could not connect to mysql server for logging, will NOT log dht operations!");
2786 stop_closest = GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht", "stop_on_closest");
2787 if (stop_closest == GNUNET_SYSERR)
2788 stop_closest = GNUNET_NO;
2790 stop_found = GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht", "stop_found");
2791 if (stop_found == GNUNET_SYSERR)
2792 stop_found = GNUNET_NO;
2794 strict_kademlia = GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht", "strict_kademlia");
2795 if (strict_kademlia == GNUNET_SYSERR)
2796 strict_kademlia = GNUNET_NO;
2799 GNUNET_CONFIGURATION_get_value_string (cfg, "dht_testing", "comment",
2801 trialmessage = NULL;
2804 /** Check for a churn file to do churny simulation */
2806 GNUNET_CONFIGURATION_get_value_string(cfg, "dht_testing", "churn_file",
2809 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Reading churn data from %s\n", churn_filename);
2810 if (GNUNET_OK != GNUNET_DISK_file_test (churn_filename))
2812 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Error reading churn file!\n");
2813 GNUNET_free_non_null(trialmessage);
2814 GNUNET_free(churn_filename);
2817 if ((0 != STAT (churn_filename, &frstat)) || (frstat.st_size == 0))
2819 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
2820 "Could not open file specified for churn data, ending test!");
2822 GNUNET_free_non_null(trialmessage);
2823 GNUNET_free(churn_filename);
2827 churn_data = GNUNET_malloc_large (frstat.st_size);
2828 GNUNET_assert(churn_data != NULL);
2829 if (frstat.st_size !=
2830 GNUNET_DISK_fn_read (churn_filename, churn_data, frstat.st_size))
2832 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
2833 "Could not read file %s specified for churn, ending test!", churn_filename);
2834 GNUNET_free (churn_filename);
2835 GNUNET_free (churn_data);
2836 GNUNET_free_non_null(trialmessage);
2840 GNUNET_free_non_null(churn_filename);
2844 /* Read the first line */
2845 while (count < frstat.st_size)
2848 if (((churn_data[count] == '\n')) && (buf != &churn_data[count]))
2850 churn_data[count] = '\0';
2851 if (1 != sscanf(buf, "%u", &churn_rounds))
2853 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Failed to read number of rounds from churn file, ending test!\n");
2855 GNUNET_free_non_null(trialmessage);
2856 GNUNET_free_non_null(churn_data);
2859 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Read %u rounds from churn file\n", churn_rounds);
2860 buf = &churn_data[count + 1];
2861 churn_array = GNUNET_malloc(sizeof(unsigned int) * churn_rounds);
2862 break; /* Done with this part */
2866 if (GNUNET_OK != GNUNET_CONFIGURATION_get_value_number(cfg, "dht_testing", "churns_per_round", &churns_per_round))
2868 churns_per_round = (unsigned long long)churn_rounds;
2872 while ((count < frstat.st_size) && (line_number < churn_rounds))
2875 if (((churn_data[count] == '\n')) && (buf != &churn_data[count]))
2877 churn_data[count] = '\0';
2879 ret = sscanf(buf, "%u", &churn_array[line_number]);
2882 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Read %u peers in round %u\n", churn_array[line_number], line_number);
2887 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Error reading line `%s' in hostfile\n", buf);
2888 buf = &churn_data[count + 1];
2891 buf = &churn_data[count + 1];
2893 else if (churn_data[count] == '\n') /* Blank line */
2894 buf = &churn_data[count + 1];
2897 GNUNET_free_non_null(churn_data);
2899 /* Check for a hostfile containing user@host:port triples */
2901 GNUNET_CONFIGURATION_get_value_string (cfg, "testing", "hostfile",
2908 if (hostfile != NULL)
2910 if (GNUNET_OK != GNUNET_DISK_file_test (hostfile))
2911 GNUNET_DISK_fn_write (hostfile, NULL, 0, GNUNET_DISK_PERM_USER_READ
2912 | GNUNET_DISK_PERM_USER_WRITE);
2913 if ((0 != STAT (hostfile, &frstat)) || (frstat.st_size == 0))
2915 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
2916 "Could not open file specified for host list, ending test!");
2918 GNUNET_free_non_null(trialmessage);
2919 GNUNET_free(hostfile);
2923 data = GNUNET_malloc_large (frstat.st_size);
2924 GNUNET_assert(data != NULL);
2925 if (frstat.st_size !=
2926 GNUNET_DISK_fn_read (hostfile, data, frstat.st_size))
2928 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
2929 "Could not read file %s specified for host list, ending test!", hostfile);
2930 GNUNET_free (hostfile);
2932 GNUNET_free_non_null(trialmessage);
2936 GNUNET_free_non_null(hostfile);
2940 while (count < frstat.st_size - 1)
2943 /* if (((data[count] == '\n') || (data[count] == '\0')) && (buf != &data[count]))*/
2944 if (((data[count] == '\n')) && (buf != &data[count]))
2947 temphost = GNUNET_malloc(sizeof(struct GNUNET_TESTING_Host));
2948 ret = sscanf(buf, "%a[a-zA-Z0-9]@%a[a-zA-Z0-9.]:%hd", &temphost->username, &temphost->hostname, &temphost->port);
2951 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Successfully read host %s, port %d and user %s from file\n", temphost->hostname, temphost->port, temphost->username);
2955 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Error reading line `%s' in hostfile\n", buf);
2956 GNUNET_free(temphost);
2957 buf = &data[count + 1];
2960 /* temphost->hostname = buf; */
2961 temphost->next = hosts;
2963 buf = &data[count + 1];
2965 else if ((data[count] == '\n') || (data[count] == '\0'))
2966 buf = &data[count + 1];
2969 GNUNET_free_non_null(data);
2971 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "malicious_getters",
2972 &malicious_getters))
2973 malicious_getters = 0;
2976 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "malicious_putters",
2977 &malicious_putters))
2978 malicious_putters = 0;
2981 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "malicious_droppers",
2982 &malicious_droppers))
2983 malicious_droppers = 0;
2986 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "settle_time",
2990 if (GNUNET_SYSERR ==
2991 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "num_puts",
2993 num_puts = num_peers;
2995 if (GNUNET_SYSERR ==
2996 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "put_replication",
2998 put_replication = DEFAULT_PUT_REPLICATION;
3000 if (GNUNET_SYSERR ==
3001 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "num_gets",
3003 num_gets = num_peers;
3005 if (GNUNET_SYSERR ==
3006 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "get_replication",
3008 get_replication = DEFAULT_GET_REPLICATION;
3011 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "find_peer_delay",
3012 &temp_config_number))
3013 find_peer_delay = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_config_number);
3015 find_peer_delay = DEFAULT_FIND_PEER_DELAY;
3018 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "concurrent_find_peers",
3019 &temp_config_number))
3020 max_outstanding_find_peers = temp_config_number;
3022 max_outstanding_find_peers = DEFAULT_MAX_OUTSTANDING_FIND_PEERS;
3025 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "get_timeout",
3026 &temp_config_number))
3027 get_timeout = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_config_number);
3029 get_timeout = DEFAULT_GET_TIMEOUT;
3032 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "concurrent_puts",
3033 &temp_config_number))
3034 max_outstanding_puts = temp_config_number;
3036 max_outstanding_puts = DEFAULT_MAX_OUTSTANDING_PUTS;
3039 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "concurrent_gets",
3040 &temp_config_number))
3041 max_outstanding_gets = temp_config_number;
3043 max_outstanding_gets = DEFAULT_MAX_OUTSTANDING_GETS;
3046 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "timeout",
3047 &temp_config_number))
3048 all_get_timeout = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_config_number);
3050 all_get_timeout.rel_value = get_timeout.rel_value * num_gets;
3053 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "get_delay",
3054 &temp_config_number))
3055 get_delay = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_config_number);
3057 get_delay = DEFAULT_GET_DELAY;
3060 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "put_delay",
3061 &temp_config_number))
3062 put_delay = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_config_number);
3064 put_delay = DEFAULT_PUT_DELAY;
3067 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "peer_start_timeout",
3068 &temp_config_number))
3069 seconds_per_peer_start = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_config_number);
3071 seconds_per_peer_start = DEFAULT_SECONDS_PER_PEER_START;
3074 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "data_size",
3075 &temp_config_number))
3076 test_data_size = temp_config_number;
3078 test_data_size = DEFAULT_TEST_DATA_SIZE;
3081 * Get testing related options.
3083 if (GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno(cfg, "DHT_TESTING", "REPLICATE_SAME"))
3084 replicate_same = GNUNET_YES;
3087 * Get testing related options.
3089 if (GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno(cfg, "DHT_TESTING", "GET_FROM_SAME"))
3090 get_from_same = GNUNET_YES;
3093 if (GNUNET_NO == GNUNET_CONFIGURATION_get_value_time (cfg, "DHT_TESTING",
3094 "MALICIOUS_GET_FREQUENCY",
3095 &malicious_get_frequency))
3096 malicious_get_frequency = DEFAULT_MALICIOUS_GET_FREQUENCY;
3099 if (GNUNET_NO == GNUNET_CONFIGURATION_get_value_time (cfg, "DHT_TESTING",
3100 "MALICIOUS_PUT_FREQUENCY",
3101 &malicious_put_frequency))
3102 malicious_put_frequency = DEFAULT_MALICIOUS_PUT_FREQUENCY;
3104 if (GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno(cfg, "DHT_TESTING", "MALICIOUS_AFTER_SETTLE"))
3105 malicious_after_settle = GNUNET_YES;
3107 if (GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno(cfg, "DHT_TESTING", "MALICIOUS_SYBIL"))
3109 /* Set up the malicious target at random for this round */
3110 GNUNET_CRYPTO_hash_create_random (GNUNET_CRYPTO_QUALITY_WEAK, &sybil_target);
3111 malicious_sybil = GNUNET_YES;
3114 /* Create the bloomfilter for choosing which peers to set malicious */
3116 /* Bloomfilter size must be 2^k for some integer k */
3118 while (1 << k < malicious_droppers)
3120 if (malicious_droppers > 0)
3121 malicious_bloom = GNUNET_CONTAINER_bloomfilter_init (NULL, 1 << k, DHT_BLOOM_K);
3123 /* The normal behavior of the DHT is to do find peer requests
3124 * on its own. Only if this is explicitly turned off should
3125 * the testing driver issue find peer requests (even though
3126 * this is likely the default when testing).
3129 GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht",
3132 do_find_peer = GNUNET_YES;
3136 GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht",
3139 in_dht_replication = GNUNET_YES;
3142 if (GNUNET_YES != GNUNET_CONFIGURATION_get_value_number (cfg, "DHT_TESTING",
3149 if (GNUNET_YES == GNUNET_CONFIGURATION_get_value_number (cfg, "DHT_TESTING",
3151 &temp_config_number))
3153 find_peer_delay = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_config_number);
3156 find_peer_delay = DEFAULT_FIND_PEER_DELAY;
3158 if (GNUNET_YES != GNUNET_CONFIGURATION_get_value_number(cfg, "DHT_TESTING", "ROUND_DELAY", &round_delay))
3161 if (GNUNET_NO == GNUNET_CONFIGURATION_get_value_number (cfg, "DHT_TESTING",
3162 "OUTSTANDING_FIND_PEERS",
3163 &max_outstanding_find_peers))
3164 max_outstanding_find_peers = DEFAULT_MAX_OUTSTANDING_FIND_PEERS;
3166 if (GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht", "strict_kademlia"))
3167 max_outstanding_find_peers = max_outstanding_find_peers * 1;
3169 find_peer_offset = GNUNET_TIME_relative_divide (find_peer_delay, max_outstanding_find_peers);
3171 if (GNUNET_SYSERR ==
3172 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "num_rounds",
3178 if ((GNUNET_SYSERR ==
3179 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "target_total_connections",
3180 &target_total_connections)) ||
3181 (target_total_connections == 0))
3183 target_total_connections = connection_estimate(num_peers, DEFAULT_BUCKET_SIZE);
3186 topology_str = NULL;
3188 GNUNET_CONFIGURATION_get_value_string(cfg, "testing", "topology",
3189 &topology_str)) && (GNUNET_NO == GNUNET_TESTING_topology_get(&topology, topology_str)))
3191 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
3192 "Invalid topology `%s' given for section %s option %s\n", topology_str, "TESTING", "TOPOLOGY");
3193 topology = GNUNET_TESTING_TOPOLOGY_CLIQUE; /* Defaults to NONE, so set better default here */
3197 GNUNET_CONFIGURATION_get_value_string (cfg, "testing", "percentage",
3198 &topology_percentage_str))
3199 topology_percentage = 0.5;
3202 topology_percentage = atof (topology_percentage_str);
3203 GNUNET_free(topology_percentage_str);
3207 GNUNET_CONFIGURATION_get_value_string (cfg, "testing", "probability",
3208 &topology_probability_str))
3209 topology_probability = 0.5;
3212 topology_probability = atof (topology_probability_str);
3213 GNUNET_free(topology_probability_str);
3217 GNUNET_CONFIGURATION_get_value_string(cfg, "testing", "connect_topology",
3218 &connect_topology_str)) && (GNUNET_NO == GNUNET_TESTING_topology_get(&connect_topology, connect_topology_str)))
3220 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
3221 "Invalid connect topology `%s' given for section %s option %s\n", connect_topology_str, "TESTING", "CONNECT_TOPOLOGY");
3223 GNUNET_free_non_null(connect_topology_str);
3226 GNUNET_CONFIGURATION_get_value_string(cfg, "testing", "connect_topology_option",
3227 &connect_topology_option_str)) && (GNUNET_NO == GNUNET_TESTING_topology_option_get(&connect_topology_option, connect_topology_option_str)))
3229 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
3230 "Invalid connect topology option `%s' given for section %s option %s\n", connect_topology_option_str, "TESTING", "CONNECT_TOPOLOGY_OPTION");
3231 connect_topology_option = GNUNET_TESTING_TOPOLOGY_OPTION_ALL; /* Defaults to NONE, set to ALL */
3233 GNUNET_free_non_null(connect_topology_option_str);
3236 GNUNET_CONFIGURATION_get_value_string (cfg, "testing", "connect_topology_option_modifier",
3237 &connect_topology_option_modifier_string))
3239 if (sscanf(connect_topology_option_modifier_string, "%lf", &connect_topology_option_modifier) != 1)
3241 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
3242 _("Invalid value `%s' for option `%s' in section `%s': expected float\n"),
3243 connect_topology_option_modifier_string,
3244 "connect_topology_option_modifier",
3247 GNUNET_free (connect_topology_option_modifier_string);
3250 if (GNUNET_YES != GNUNET_CONFIGURATION_get_value_string (cfg, "testing", "blacklist_transports",
3251 &blacklist_transports))
3252 blacklist_transports = NULL;
3255 GNUNET_CONFIGURATION_get_value_string(cfg, "testing", "blacklist_topology",
3256 &blacklist_topology_str)) &&
3257 (GNUNET_NO == GNUNET_TESTING_topology_get(&blacklist_topology, blacklist_topology_str)))
3259 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
3260 "Invalid topology `%s' given for section %s option %s\n", topology_str, "TESTING", "BLACKLIST_TOPOLOGY");
3262 GNUNET_free_non_null(topology_str);
3263 GNUNET_free_non_null(blacklist_topology_str);
3265 /* Set peers_left so we know when all peers started */
3266 peers_left = num_peers;
3269 /* Set up a task to end testing if peer start fails */
3270 die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(seconds_per_peer_start, num_peers),
3271 &end_badly, "didn't generate all hostkeys within allowed startup time!");
3273 if (dhtlog_handle == NULL)
3274 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
3275 "dhtlog_handle is NULL!");
3277 trial_info.other_identifier = (unsigned int)trial_to_run;
3278 trial_info.num_nodes = peers_left;
3279 trial_info.topology = topology;
3280 trial_info.blacklist_topology = blacklist_topology;
3281 trial_info.connect_topology = connect_topology;
3282 trial_info.connect_topology_option = connect_topology_option;
3283 trial_info.connect_topology_option_modifier = connect_topology_option_modifier;
3284 trial_info.topology_percentage = topology_percentage;
3285 trial_info.topology_probability = topology_probability;
3286 trial_info.puts = num_puts;
3287 trial_info.gets = num_gets;
3288 trial_info.concurrent = max_outstanding_gets;
3289 trial_info.settle_time = settle_time;
3290 trial_info.num_rounds = total_rounds;
3291 trial_info.malicious_getters = malicious_getters;
3292 trial_info.malicious_putters = malicious_putters;
3293 trial_info.malicious_droppers = malicious_droppers;
3294 trial_info.malicious_get_frequency = malicious_get_frequency.rel_value;
3295 trial_info.malicious_put_frequency = malicious_put_frequency.rel_value;
3296 trial_info.stop_closest = stop_closest;
3297 trial_info.stop_found = stop_found;
3298 trial_info.strict_kademlia = strict_kademlia;
3300 if (trialmessage != NULL)
3301 trial_info.message = trialmessage;
3303 trial_info.message = "";
3305 if (dhtlog_handle != NULL)
3306 dhtlog_handle->insert_trial(&trial_info);
3308 GNUNET_free_non_null(trialmessage);
3310 hostkey_meter = create_meter(peers_left, "Hostkeys created ", GNUNET_YES);
3311 peer_start_meter = create_meter(peers_left, "Peers started ", GNUNET_YES);
3313 put_meter = create_meter(num_puts, "Puts completed ", GNUNET_YES);
3314 get_meter = create_meter(num_gets, "Gets completed ", GNUNET_YES);
3315 pg = GNUNET_TESTING_daemons_start (cfg,
3317 GNUNET_TIME_relative_multiply(seconds_per_peer_start, num_peers),
3318 &hostkey_callback, NULL,
3319 &peers_started_callback, NULL,
3320 &topology_callback, NULL,
3323 while (temphost != NULL)
3325 tempnext = temphost->next;
3326 GNUNET_free (temphost->username);
3327 GNUNET_free (temphost->hostname);
3328 GNUNET_free (temphost);
3329 temphost = tempnext;
3334 main (int argc, char *argv[])
3337 struct GNUNET_GETOPT_CommandLineOption options[] = {
3338 GNUNET_GETOPT_OPTION_END
3341 ret = GNUNET_PROGRAM_run (argc,
3342 argv, "gnunet-dht-driver", "nohelp",
3343 options, &run, &ok);
3345 if (malicious_bloom != NULL)
3346 GNUNET_CONTAINER_bloomfilter_free (malicious_bloom);
3348 if (ret != GNUNET_OK)
3350 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "`gnunet-dht-driver': Failed with error code %d\n", ret);
3354 * Need to remove base directory, subdirectories taken care
3355 * of by the testing framework.
3357 if (GNUNET_DISK_directory_remove (test_directory) != GNUNET_OK)
3359 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Failed to remove testing directory %s\n", test_directory);
3364 /* end of gnunet-dht-driver.c */