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.
30 #ifndef HAVE_MALICIOUS
33 #include "gnunet_testing_lib.h"
34 #include "gnunet_core_service.h"
35 #include "gnunet_dht_service.h"
40 #define VERBOSE GNUNET_NO
42 /* Timeout for entire driver to run */
43 #define DEFAULT_TIMEOUT GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MINUTES, 5)
45 /* Timeout for waiting for (individual) replies to get requests */
46 #define DEFAULT_GET_TIMEOUT GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 90)
48 #define DEFAULT_TOPOLOGY_CAPTURE_TIMEOUT GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 90)
50 /* Timeout for waiting for gets to be sent to the service */
51 #define DEFAULT_GET_DELAY GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 10)
53 /* Timeout for waiting for puts to be sent to the service */
54 #define DEFAULT_PUT_DELAY GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 10)
56 /* Time to allow a find peer request to take */
57 #define DEFAULT_FIND_PEER_DELAY GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 40)
59 /* Time to wait for all peers disconnected due to to churn to actually be removed from system */
60 #define DEFAULT_PEER_DISCONNECT_TIMEOUT GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MINUTES, 5)
62 #define DEFAULT_SECONDS_PER_PEER_START GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 45)
64 #define DEFAULT_TEST_DATA_SIZE 8
66 #define DEFAULT_BUCKET_SIZE 4
68 #define FIND_PEER_THRESHOLD 1
70 /* If more than this many peers are added, slow down sending */
71 #define MAX_FIND_PEER_CUTOFF 4000
73 /* If less than this many peers are added, speed up sending */
74 #define MIN_FIND_PEER_CUTOFF 500
76 #define DEFAULT_MAX_OUTSTANDING_PUTS 10
78 #define DEFAULT_MAX_OUTSTANDING_FIND_PEERS 196
80 #define DEFAULT_FIND_PEER_OFFSET GNUNET_TIME_relative_divide (DEFAULT_FIND_PEER_DELAY, DEFAULT_MAX_OUTSTANDING_FIND_PEERS)
82 #define DEFAULT_MAX_OUTSTANDING_GETS 10
84 #define DEFAULT_CONNECT_TIMEOUT 60
86 #define DEFAULT_TOPOLOGY_TIMEOUT GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MINUTES, 8)
88 #define DEFAULT_RECONNECT_ATTEMPTS 8
91 * Default frequency for sending malicious get messages
93 #define DEFAULT_MALICIOUS_GET_FREQUENCY GNUNET_TIME_UNIT_SECONDS
96 * Default frequency for sending malicious put messages
98 #define DEFAULT_MALICIOUS_PUT_FREQUENCY GNUNET_TIME_UNIT_SECONDS
102 struct MaliciousContext
105 * Handle to DHT service (via the API)
107 struct GNUNET_DHT_Handle *dht_handle;
110 * Handle to the peer daemon
112 struct GNUNET_TESTING_Daemon *daemon;
115 * Task for disconnecting DHT handles
117 GNUNET_SCHEDULER_TaskIdentifier disconnect_task;
120 * What type of malicious to set this peer to.
127 /* This is a linked list */
128 struct TestFindPeer *next;
130 /* Handle to the bigger context */
131 struct FindPeerContext *find_peer_context;
134 * Handle to the peer's DHT service (via the API)
136 struct GNUNET_DHT_Handle *dht_handle;
139 * Handle to the peer daemon
141 struct GNUNET_TESTING_Daemon *daemon;
144 * Task for disconnecting DHT handles
146 GNUNET_SCHEDULER_TaskIdentifier disconnect_task;
149 struct TestPutContext
151 /* This is a linked list */
152 struct TestPutContext *next;
155 * Handle to the first peers DHT service (via the API)
157 struct GNUNET_DHT_Handle *dht_handle;
160 * Handle to the PUT peer daemon
162 struct GNUNET_TESTING_Daemon *daemon;
165 * Identifier for this PUT
170 * Task for disconnecting DHT handles
172 GNUNET_SCHEDULER_TaskIdentifier disconnect_task;
175 struct TestGetContext
177 /* This is a linked list */
178 struct TestGetContext *next;
181 * Handle to the first peers DHT service (via the API)
183 struct GNUNET_DHT_Handle *dht_handle;
186 * Handle for the DHT get request
188 struct GNUNET_DHT_GetHandle *get_handle;
191 * Handle to the GET peer daemon
193 struct GNUNET_TESTING_Daemon *daemon;
196 * Identifier for this GET
201 * Task for disconnecting DHT handles (and stopping GET)
203 GNUNET_SCHEDULER_TaskIdentifier disconnect_task;
206 * Whether or not this request has been fulfilled already.
212 * Simple struct to keep track of progress, and print a
213 * nice little percentage meter for long running tasks.
223 unsigned int completed;
227 char *startup_string;
231 * Linked list of information for populating statistics
232 * before ending trial.
234 struct StatisticsIteratorContext
236 const struct GNUNET_PeerIdentity *peer;
237 unsigned int stat_routes;
238 unsigned int stat_route_forwards;
239 unsigned int stat_results;
240 unsigned int stat_results_to_client;
241 unsigned int stat_result_forwards;
242 unsigned int stat_gets;
243 unsigned int stat_puts;
244 unsigned int stat_puts_inserted;
245 unsigned int stat_find_peer;
246 unsigned int stat_find_peer_start;
247 unsigned int stat_get_start;
248 unsigned int stat_put_start;
249 unsigned int stat_find_peer_reply;
250 unsigned int stat_get_reply;
251 unsigned int stat_find_peer_answer;
252 unsigned int stat_get_response_start;
256 * Context for getting a topology, logging it, and continuing
257 * on with some next operation.
259 struct TopologyIteratorContext
261 unsigned int total_iterations;
262 unsigned int current_iteration;
263 unsigned int total_connections;
264 unsigned int total_peers;
265 struct GNUNET_CONTAINER_MultiHashMap *peers_seen;
266 struct GNUNET_PeerIdentity *peer;
267 GNUNET_SCHEDULER_Task cont;
269 struct GNUNET_TIME_Relative timeout;
275 /** Node in the heap */
276 struct GNUNET_CONTAINER_HeapNode *heap_node;
278 /** Peer the count refers to */
279 struct GNUNET_PeerIdentity peer_id;
281 /** Count of connections this peer has */
286 * Context for sending out find peer requests.
288 struct FindPeerContext
291 * How long to send find peer requests, once the settle time
292 * is over don't send any more out!
294 * TODO: Add option for settle time and find peer sending time?
296 struct GNUNET_TIME_Absolute endtime;
299 * Number of connections in the current topology
300 * (after this round of find peer requests has ended).
302 unsigned int current_peers;
305 * Number of connections in the current topology
306 * (before this round of find peer requests started).
308 unsigned int previous_peers;
311 * Number of find peer requests we have currently
314 unsigned int outstanding;
317 * Number of find peer requests to send in this round.
322 * Number of find peer requests sent last time around.
324 unsigned int last_sent;
327 * Hashmap of peers in the current topology, value
328 * is a PeerCount, with the number of connections
331 struct GNUNET_CONTAINER_MultiHashMap *peer_hash;
334 * Min heap which orders values in the peer_hash for
337 struct GNUNET_CONTAINER_Heap *peer_min_heap;
340 * Callback for counting the peers in the current topology.
342 GNUNET_TESTING_NotifyTopology count_peers_cb;
348 * Next full round (puts + gets).
353 * Next round of gets.
358 * Next round of puts.
363 * Next round of churn.
373 * Timeout to let all get requests happen.
375 static struct GNUNET_TIME_Relative all_get_timeout;
380 static struct GNUNET_TIME_Relative get_timeout;
382 static struct GNUNET_TIME_Relative get_delay;
384 static struct GNUNET_TIME_Relative put_delay;
386 static struct GNUNET_TIME_Relative find_peer_delay;
388 static struct GNUNET_TIME_Relative find_peer_offset;
390 static struct GNUNET_TIME_Relative seconds_per_peer_start;
392 static unsigned int do_find_peer;
394 static unsigned int in_dht_replication;
396 static unsigned long long test_data_size = DEFAULT_TEST_DATA_SIZE;
398 static unsigned long long max_outstanding_puts = DEFAULT_MAX_OUTSTANDING_PUTS;
400 static unsigned long long max_outstanding_gets = DEFAULT_MAX_OUTSTANDING_GETS;
402 static unsigned long long malicious_getters;
404 static unsigned long long max_outstanding_find_peers;
406 static unsigned long long malicious_putters;
408 static unsigned long long round_delay;
410 static unsigned long long malicious_droppers;
412 static struct GNUNET_TIME_Relative malicious_get_frequency;
414 static struct GNUNET_TIME_Relative malicious_put_frequency;
416 static unsigned long long settle_time;
418 static unsigned long long trial_to_run;
420 static struct GNUNET_DHTLOG_Handle *dhtlog_handle;
422 static unsigned long long trialuid;
425 * If GNUNET_YES, insert data at the same peers every time.
426 * Otherwise, choose a new random peer to insert at each time.
428 static unsigned int replicate_same;
431 * Number of rounds for testing (PUTS + GETS)
433 static unsigned long long total_rounds;
436 * Number of rounds already run
438 static unsigned int rounds_finished;
441 * Number of rounds of churn to read from the file (first line, should be a single number).
443 static unsigned int churn_rounds;
446 * Current round we are in for churn, tells us how many peers to connect/disconnect.
448 static unsigned int current_churn_round;
451 * Number of times to churn per round
453 static unsigned long long churns_per_round;
456 * Array of churn values.
458 static unsigned int *churn_array;
461 * Hash map of stats contexts.
463 struct GNUNET_CONTAINER_MultiHashMap *stats_map;
466 * LL of malicious settings.
468 struct MaliciousContext *all_malicious;
471 * List of GETS to perform
473 struct TestGetContext *all_gets;
476 * List of PUTS to perform
478 struct TestPutContext *all_puts;
481 * Directory to store temporary data in, defined in config file
483 static char *test_directory;
486 * Variable used to store the number of connections we should wait for.
488 static unsigned int expected_connections;
491 * Variable used to keep track of how many peers aren't yet started.
493 static unsigned long long peers_left;
496 * Handle to the set of all peers run for this test.
498 static struct GNUNET_TESTING_PeerGroup *pg;
501 * Global scheduler, used for all GNUNET_SCHEDULER_* functions.
503 static struct GNUNET_SCHEDULER_Handle *sched;
506 * Global config handle.
508 const struct GNUNET_CONFIGURATION_Handle *config;
511 * Total number of peers to run, set based on config file.
513 static unsigned long long num_peers;
516 * Total number of items to insert.
518 static unsigned long long num_puts;
521 * How many puts do we currently have in flight?
523 static unsigned long long outstanding_puts;
526 * How many puts are done?
528 static unsigned long long puts_completed;
531 * Total number of items to attempt to get.
533 static unsigned long long num_gets;
536 * How many puts do we currently have in flight?
538 static unsigned long long outstanding_gets;
541 * How many gets are done?
543 static unsigned long long gets_completed;
546 * How many gets failed?
548 static unsigned long long gets_failed;
551 * How many malicious control messages do
552 * we currently have in flight?
554 static unsigned long long outstanding_malicious;
557 * How many set malicious peers are done?
559 static unsigned long long malicious_completed;
562 * Global used to count how many connections we have currently
563 * been notified about (how many times has topology_callback been called
566 static unsigned int total_connections;
569 * Global used to count how many failed connections we have
570 * been notified about (how many times has topology_callback
571 * been called with failure?)
573 static unsigned int failed_connections;
575 /* Task handle to use to schedule shutdown if something goes wrong */
576 GNUNET_SCHEDULER_TaskIdentifier die_task;
578 static char *blacklist_transports;
580 static enum GNUNET_TESTING_Topology topology;
582 static enum GNUNET_TESTING_Topology blacklist_topology = GNUNET_TESTING_TOPOLOGY_NONE; /* Don't do any blacklisting */
584 static enum GNUNET_TESTING_Topology connect_topology = GNUNET_TESTING_TOPOLOGY_NONE; /* NONE actually means connect all allowed peers */
586 static enum GNUNET_TESTING_TopologyOption connect_topology_option = GNUNET_TESTING_TOPOLOGY_OPTION_ALL;
588 static double connect_topology_option_modifier = 0.0;
590 static struct ProgressMeter *hostkey_meter;
592 static struct ProgressMeter *peer_start_meter;
594 static struct ProgressMeter *peer_connect_meter;
596 static struct ProgressMeter *put_meter;
598 static struct ProgressMeter *get_meter;
600 static GNUNET_HashCode *known_keys;
602 /* Global return value (0 for success, anything else for failure) */
606 * Create a meter to keep track of the progress of some task.
608 * @param total the total number of items to complete
609 * @param start_string a string to prefix the meter with (if printing)
610 * @param print GNUNET_YES to print the meter, GNUNET_NO to count
613 * @return the progress meter
615 static struct ProgressMeter *
616 create_meter(unsigned int total, char * start_string, int print)
618 struct ProgressMeter *ret;
619 ret = GNUNET_malloc(sizeof(struct ProgressMeter));
622 ret->modnum = total / 4;
623 ret->dotnum = (total / 50) + 1;
624 if (start_string != NULL)
625 ret->startup_string = GNUNET_strdup(start_string);
627 ret->startup_string = GNUNET_strdup("");
633 * Update progress meter (increment by one).
635 * @param meter the meter to update and print info for
637 * @return GNUNET_YES if called the total requested,
638 * GNUNET_NO if more items expected
641 update_meter(struct ProgressMeter *meter)
643 if (meter->print == GNUNET_YES)
645 if (meter->completed % meter->modnum == 0)
647 if (meter->completed == 0)
649 fprintf(stdout, "%sProgress: [0%%", meter->startup_string);
652 fprintf(stdout, "%d%%", (int)(((float)meter->completed / meter->total) * 100));
654 else if (meter->completed % meter->dotnum == 0)
655 fprintf(stdout, ".");
657 if (meter->completed + 1 == meter->total)
658 fprintf(stdout, "%d%%]\n", 100);
663 if (meter->completed == meter->total)
669 * Reset progress meter.
671 * @param meter the meter to reset
673 * @return GNUNET_YES if meter reset,
674 * GNUNET_SYSERR on error
677 reset_meter(struct ProgressMeter *meter)
680 return GNUNET_SYSERR;
682 meter->completed = 0;
687 * Release resources for meter
689 * @param meter the meter to free
692 free_meter(struct ProgressMeter *meter)
694 GNUNET_free_non_null(meter->startup_string);
695 GNUNET_free_non_null(meter);
699 * Check whether peers successfully shut down.
701 void shutdown_callback (void *cls,
712 * Task to release DHT handles for PUT
715 put_disconnect_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
717 struct TestPutContext *test_put = cls;
718 test_put->disconnect_task = GNUNET_SCHEDULER_NO_TASK;
719 GNUNET_DHT_disconnect(test_put->dht_handle);
720 test_put->dht_handle = NULL;
721 test_put->daemon = GNUNET_TESTING_daemon_get(pg, GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers));
725 * Function scheduled to be run on the successful completion of this
729 finish_testing (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
731 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Ending test normally!\n", (char *)cls);
732 GNUNET_assert (pg != NULL);
733 struct TestPutContext *test_put = all_puts;
734 struct TestGetContext *test_get = all_gets;
736 while (test_put != NULL)
738 if (test_put->disconnect_task != GNUNET_SCHEDULER_NO_TASK)
739 GNUNET_SCHEDULER_cancel(sched, test_put->disconnect_task);
740 if (test_put->dht_handle != NULL)
741 GNUNET_DHT_disconnect(test_put->dht_handle);
742 test_put = test_put->next;
745 while (test_get != NULL)
747 if (test_get->disconnect_task != GNUNET_SCHEDULER_NO_TASK)
748 GNUNET_SCHEDULER_cancel(sched, test_get->disconnect_task);
749 if (test_get->get_handle != NULL)
750 GNUNET_DHT_get_stop(test_get->get_handle);
751 if (test_get->dht_handle != NULL)
752 GNUNET_DHT_disconnect(test_get->dht_handle);
753 test_get = test_get->next;
756 GNUNET_TESTING_daemons_stop (pg, DEFAULT_TIMEOUT, &shutdown_callback, NULL);
758 if (dhtlog_handle != NULL)
760 fprintf(stderr, "Update trial endtime\n");
761 dhtlog_handle->update_trial (trialuid, gets_completed);
762 GNUNET_DHTLOG_disconnect(dhtlog_handle);
763 dhtlog_handle = NULL;
766 if (hostkey_meter != NULL)
767 free_meter(hostkey_meter);
768 if (peer_start_meter != NULL)
769 free_meter(peer_start_meter);
770 if (peer_connect_meter != NULL)
771 free_meter(peer_connect_meter);
772 if (put_meter != NULL)
773 free_meter(put_meter);
774 if (get_meter != NULL)
775 free_meter(get_meter);
781 * Callback for iterating over all the peer connections of a peer group.
783 void log_topology_cb (void *cls,
784 const struct GNUNET_PeerIdentity *first,
785 const struct GNUNET_PeerIdentity *second,
786 struct GNUNET_TIME_Relative latency,
790 struct TopologyIteratorContext *topo_ctx = cls;
791 if ((first != NULL) && (second != NULL))
793 if ((topo_ctx->peers_seen != NULL) && (GNUNET_NO == GNUNET_CONTAINER_multihashmap_contains(topo_ctx->peers_seen, &first->hashPubKey)))
795 GNUNET_CONTAINER_multihashmap_put(topo_ctx->peers_seen, &first->hashPubKey, NULL, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
796 topo_ctx->total_peers++;
798 topo_ctx->total_connections++;
799 if (GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno(config, "dht_testing", "mysql_logging_extended"))
800 dhtlog_handle->insert_extended_topology(first, second);
804 GNUNET_assert(dhtlog_handle != NULL);
805 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);
806 dhtlog_handle->update_topology(topo_ctx->total_connections);
807 if (topo_ctx->cont != NULL)
808 GNUNET_SCHEDULER_add_now (sched, topo_ctx->cont, topo_ctx->cls);
809 if (topo_ctx->peers_seen != NULL)
810 GNUNET_CONTAINER_multihashmap_destroy(topo_ctx->peers_seen);
811 GNUNET_free(topo_ctx);
816 * Iterator over hash map entries.
818 * @param cls closure - always NULL
819 * @param key current key code
820 * @param value value in the hash map, a stats context
821 * @return GNUNET_YES if we should continue to
825 static int stats_iterate (void *cls,
826 const GNUNET_HashCode * key,
829 struct StatisticsIteratorContext *stats_ctx;
833 dhtlog_handle->insert_stat(stats_ctx->peer, stats_ctx->stat_routes, stats_ctx->stat_route_forwards, stats_ctx->stat_results,
834 stats_ctx->stat_results_to_client, stats_ctx->stat_result_forwards, stats_ctx->stat_gets,
835 stats_ctx->stat_puts, stats_ctx->stat_puts_inserted, stats_ctx->stat_find_peer,
836 stats_ctx->stat_find_peer_start, stats_ctx->stat_get_start, stats_ctx->stat_put_start,
837 stats_ctx->stat_find_peer_reply, stats_ctx->stat_get_reply, stats_ctx->stat_find_peer_answer,
838 stats_ctx->stat_get_response_start);
839 GNUNET_free(stats_ctx);
843 static void stats_finished (void *cls, int result)
845 fprintf(stderr, "Finished getting all peers statistics, iterating!\n");
846 GNUNET_CONTAINER_multihashmap_iterate(stats_map, &stats_iterate, NULL);
847 GNUNET_CONTAINER_multihashmap_destroy(stats_map);
848 GNUNET_SCHEDULER_add_now (sched, &finish_testing, NULL);
852 * Callback function to process statistic values.
855 * @param peer the peer the statistics belong to
856 * @param subsystem name of subsystem that created the statistic
857 * @param name the name of the datum
858 * @param value the current value
859 * @param is_persistent GNUNET_YES if the value is persistent, GNUNET_NO if not
860 * @return GNUNET_OK to continue, GNUNET_SYSERR to abort iteration
862 static int stats_handle (void *cls,
863 const struct GNUNET_PeerIdentity *peer,
864 const char *subsystem,
869 struct StatisticsIteratorContext *stats_ctx;
871 if (dhtlog_handle != NULL)
872 dhtlog_handle->add_generic_stat(peer, name, subsystem, value);
873 if (GNUNET_CONTAINER_multihashmap_contains(stats_map, &peer->hashPubKey))
875 stats_ctx = GNUNET_CONTAINER_multihashmap_get(stats_map, &peer->hashPubKey);
879 stats_ctx = GNUNET_malloc(sizeof(struct StatisticsIteratorContext));
880 stats_ctx->peer = peer;
881 GNUNET_CONTAINER_multihashmap_put(stats_map, &peer->hashPubKey, stats_ctx, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
883 GNUNET_assert(stats_ctx != NULL);
885 if (strcmp(name, STAT_ROUTES) == 0)
886 stats_ctx->stat_routes = value;
887 else if (strcmp(name, STAT_ROUTE_FORWARDS) == 0)
888 stats_ctx->stat_route_forwards = value;
889 else if (strcmp(name, STAT_RESULTS) == 0)
890 stats_ctx->stat_results = value;
891 else if (strcmp(name, STAT_RESULTS_TO_CLIENT) == 0)
892 stats_ctx->stat_results_to_client = value;
893 else if (strcmp(name, STAT_RESULT_FORWARDS) == 0)
894 stats_ctx->stat_result_forwards = value;
895 else if (strcmp(name, STAT_GETS) == 0)
896 stats_ctx->stat_gets = value;
897 else if (strcmp(name, STAT_PUTS) == 0)
898 stats_ctx->stat_puts = value;
899 else if (strcmp(name, STAT_PUTS_INSERTED) == 0)
900 stats_ctx->stat_puts_inserted = value;
901 else if (strcmp(name, STAT_FIND_PEER) == 0)
902 stats_ctx->stat_find_peer = value;
903 else if (strcmp(name, STAT_FIND_PEER_START) == 0)
904 stats_ctx->stat_find_peer_start = value;
905 else if (strcmp(name, STAT_GET_START) == 0)
906 stats_ctx->stat_get_start = value;
907 else if (strcmp(name, STAT_PUT_START) == 0)
908 stats_ctx->stat_put_start = value;
909 else if (strcmp(name, STAT_FIND_PEER_REPLY) == 0)
910 stats_ctx->stat_find_peer_reply = value;
911 else if (strcmp(name, STAT_GET_REPLY) == 0)
912 stats_ctx->stat_get_reply = value;
913 else if (strcmp(name, STAT_FIND_PEER_ANSWER) == 0)
914 stats_ctx->stat_find_peer_answer = value;
915 else if (strcmp(name, STAT_GET_RESPONSE_START) == 0)
916 stats_ctx->stat_get_response_start = value;
922 * Connect to statistics service for each peer and get the appropriate
923 * dht statistics for safe keeping.
926 log_dht_statistics (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
928 stats_map = GNUNET_CONTAINER_multihashmap_create(num_peers);
929 fprintf(stderr, "Starting statistics logging\n");
930 GNUNET_TESTING_get_statistics(pg, &stats_finished, &stats_handle, NULL);
935 * Connect to all peers in the peer group and iterate over their
939 capture_current_topology (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
941 struct TopologyIteratorContext *topo_ctx = cls;
942 dhtlog_handle->insert_topology(0);
943 GNUNET_TESTING_get_topology (pg, &log_topology_cb, topo_ctx);
948 * Check if the get_handle is being used, if so stop the request. Either
949 * way, schedule the end_badly_cont function which actually shuts down the
953 end_badly (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
955 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Failing test with error: `%s'!\n", (char *)cls);
957 struct TestPutContext *test_put = all_puts;
958 struct TestGetContext *test_get = all_gets;
960 while (test_put != NULL)
962 if (test_put->disconnect_task != GNUNET_SCHEDULER_NO_TASK)
963 GNUNET_SCHEDULER_cancel(sched, test_put->disconnect_task);
964 if (test_put->dht_handle != NULL)
965 GNUNET_DHT_disconnect(test_put->dht_handle);
966 test_put = test_put->next;
969 while (test_get != NULL)
971 if (test_get->disconnect_task != GNUNET_SCHEDULER_NO_TASK)
972 GNUNET_SCHEDULER_cancel(sched, test_get->disconnect_task);
973 if (test_get->get_handle != NULL)
974 GNUNET_DHT_get_stop(test_get->get_handle);
975 if (test_get->dht_handle != NULL)
976 GNUNET_DHT_disconnect(test_get->dht_handle);
977 test_get = test_get->next;
980 GNUNET_TESTING_daemons_stop (pg, DEFAULT_TIMEOUT, &shutdown_callback, NULL);
982 if (dhtlog_handle != NULL)
984 fprintf(stderr, "Update trial endtime\n");
985 dhtlog_handle->update_trial (trialuid, gets_completed);
986 GNUNET_DHTLOG_disconnect(dhtlog_handle);
987 dhtlog_handle = NULL;
990 if (hostkey_meter != NULL)
991 free_meter(hostkey_meter);
992 if (peer_start_meter != NULL)
993 free_meter(peer_start_meter);
994 if (peer_connect_meter != NULL)
995 free_meter(peer_connect_meter);
996 if (put_meter != NULL)
997 free_meter(put_meter);
998 if (get_meter != NULL)
999 free_meter(get_meter);
1005 * Forward declaration.
1008 do_put (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc);
1011 * Forward declaration.
1014 do_get (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc);
1017 * Iterator over hash map entries.
1019 * @param cls closure
1020 * @param key current key code
1021 * @param value value in the hash map
1022 * @return GNUNET_YES if we should continue to
1026 static int remove_peer_count (void *cls,
1027 const GNUNET_HashCode * key,
1030 struct FindPeerContext *find_peer_ctx = cls;
1031 struct PeerCount *peer_count = value;
1032 GNUNET_CONTAINER_heap_remove_node(find_peer_ctx->peer_min_heap, peer_count->heap_node);
1033 GNUNET_free(peer_count);
1039 * Connect to all peers in the peer group and iterate over their
1043 count_new_peers (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1045 struct FindPeerContext *find_peer_context = cls;
1046 find_peer_context->previous_peers = find_peer_context->current_peers;
1047 find_peer_context->current_peers = 0;
1048 GNUNET_TESTING_get_topology (pg, find_peer_context->count_peers_cb, find_peer_context);
1052 decrement_find_peers (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1054 struct TestFindPeer *test_find_peer = cls;
1055 GNUNET_assert(test_find_peer->find_peer_context->outstanding > 0);
1056 test_find_peer->find_peer_context->outstanding--;
1057 test_find_peer->find_peer_context->total--;
1058 if ((0 == test_find_peer->find_peer_context->total) &&
1059 (GNUNET_TIME_absolute_get_remaining(test_find_peer->find_peer_context->endtime).value > 60))
1061 GNUNET_SCHEDULER_add_now(sched, &count_new_peers, test_find_peer->find_peer_context);
1063 GNUNET_free(test_find_peer);
1067 * A find peer request has been sent to the server, now we will schedule a task
1068 * to wait the appropriate time to allow the request to go out and back.
1070 * @param cls closure - a TestFindPeer struct
1071 * @param tc context the task is being called with
1074 handle_find_peer_sent (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1076 struct TestFindPeer *test_find_peer = cls;
1078 GNUNET_DHT_disconnect(test_find_peer->dht_handle);
1079 GNUNET_SCHEDULER_add_delayed(sched, GNUNET_TIME_relative_divide(find_peer_delay, 2), &decrement_find_peers, test_find_peer);
1084 send_find_peer_request (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1086 struct TestFindPeer *test_find_peer = cls;
1088 if (test_find_peer->find_peer_context->outstanding > max_outstanding_find_peers)
1090 GNUNET_SCHEDULER_add_delayed(sched, find_peer_offset, &send_find_peer_request, test_find_peer);
1094 test_find_peer->find_peer_context->outstanding++;
1095 if (GNUNET_TIME_absolute_get_remaining(test_find_peer->find_peer_context->endtime).value == 0)
1097 GNUNET_SCHEDULER_add_now(sched, &decrement_find_peers, test_find_peer);
1101 test_find_peer->dht_handle = GNUNET_DHT_connect(sched, test_find_peer->daemon->cfg, 1);
1102 GNUNET_assert(test_find_peer->dht_handle != NULL);
1103 GNUNET_DHT_find_peers (test_find_peer->dht_handle,
1104 &handle_find_peer_sent, test_find_peer);
1109 * Add a connection to the find_peer_context given. This may
1110 * be complete overkill, but allows us to choose the peers with
1111 * the least connections to initiate find peer requests from.
1113 static void add_new_connection(struct FindPeerContext *find_peer_context,
1114 const struct GNUNET_PeerIdentity *first,
1115 const struct GNUNET_PeerIdentity *second)
1117 struct PeerCount *first_count;
1118 struct PeerCount *second_count;
1120 if (GNUNET_CONTAINER_multihashmap_contains(find_peer_context->peer_hash, &first->hashPubKey))
1122 first_count = GNUNET_CONTAINER_multihashmap_get(find_peer_context->peer_hash, &first->hashPubKey);
1123 first_count->count++;
1124 GNUNET_CONTAINER_heap_update_cost(find_peer_context->peer_min_heap, first_count->heap_node, first_count->count);
1128 first_count = GNUNET_malloc(sizeof(struct PeerCount));
1129 first_count->count = 1;
1130 memcpy(&first_count->peer_id, first, sizeof(struct GNUNET_PeerIdentity));
1131 first_count->heap_node = GNUNET_CONTAINER_heap_insert(find_peer_context->peer_min_heap, first_count, first_count->count);
1132 GNUNET_CONTAINER_multihashmap_put(find_peer_context->peer_hash, &first->hashPubKey, first_count, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
1135 if (GNUNET_CONTAINER_multihashmap_contains(find_peer_context->peer_hash, &second->hashPubKey))
1137 second_count = GNUNET_CONTAINER_multihashmap_get(find_peer_context->peer_hash, &second->hashPubKey);
1138 second_count->count++;
1139 GNUNET_CONTAINER_heap_update_cost(find_peer_context->peer_min_heap, second_count->heap_node, second_count->count);
1143 second_count = GNUNET_malloc(sizeof(struct PeerCount));
1144 second_count->count = 1;
1145 memcpy(&second_count->peer_id, second, sizeof(struct GNUNET_PeerIdentity));
1146 second_count->heap_node = GNUNET_CONTAINER_heap_insert(find_peer_context->peer_min_heap, second_count, second_count->count);
1147 GNUNET_CONTAINER_multihashmap_put(find_peer_context->peer_hash, &second->hashPubKey, second_count, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
1153 * Iterate over min heap of connections per peer. For any
1154 * peer that has 0 connections, attempt to connect them to
1157 * @param cls closure a struct FindPeerContext
1158 * @param node internal node of the heap
1159 * @param element value stored, a struct PeerCount
1160 * @param cost cost associated with the node
1161 * @return GNUNET_YES if we should continue to iterate,
1164 static int iterate_min_heap_peers (void *cls,
1165 struct GNUNET_CONTAINER_HeapNode *node,
1167 GNUNET_CONTAINER_HeapCostType cost)
1169 struct FindPeerContext *find_peer_context = cls;
1170 struct PeerCount *peer_count = element;
1171 struct GNUNET_TESTING_Daemon *d1;
1172 struct GNUNET_TESTING_Daemon *d2;
1173 struct GNUNET_TIME_Relative timeout;
1176 d1 = GNUNET_TESTING_daemon_get_by_id (pg, &peer_count->peer_id);
1178 while ((d2 == d1) || (GNUNET_YES != GNUNET_TESTING_daemon_running(d2)))
1180 d2 = GNUNET_TESTING_daemon_get(pg, GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers));
1183 /** Just try to connect the peers, don't worry about callbacks, etc. **/
1184 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);
1185 timeout = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, DEFAULT_CONNECT_TIMEOUT);
1186 if (GNUNET_TIME_relative_to_absolute(timeout).value > find_peer_context->endtime.value)
1188 timeout = GNUNET_TIME_absolute_get_remaining(find_peer_context->endtime);
1190 GNUNET_TESTING_daemons_connect(d1, d2, timeout, DEFAULT_RECONNECT_ATTEMPTS, NULL, NULL);
1192 if (GNUNET_TIME_absolute_get_remaining(find_peer_context->endtime).value > 0)
1199 * Forward declaration.
1202 schedule_churn_find_peer_requests (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc);
1205 * Callback for iterating over all the peer connections of a peer group.
1206 * Used after we have churned on some peers to find which ones have zero
1207 * connections so we can make them issue find peer requests.
1209 void count_peers_churn_cb (void *cls,
1210 const struct GNUNET_PeerIdentity *first,
1211 const struct GNUNET_PeerIdentity *second,
1212 struct GNUNET_TIME_Relative latency,
1216 struct FindPeerContext *find_peer_context = cls;
1217 struct TopologyIteratorContext *topo_ctx;
1218 struct PeerCount *peer_count;
1220 if ((first != NULL) && (second != NULL))
1222 add_new_connection(find_peer_context, first, second);
1223 find_peer_context->current_peers++;
1227 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Peer count finished (%u connections)\n",
1228 find_peer_context->current_peers);
1229 peer_count = GNUNET_CONTAINER_heap_peek(find_peer_context->peer_min_heap);
1231 /* 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. */
1232 /* NO they won't, because we have disabled peerinfo writing to disk (remember?) so we WILL have to give them new connections */
1233 /* Best course of action: have DHT automatically try to add peers from peerinfo on startup. This way IF peerinfo writes to file
1234 * then some peers will end up connected.
1236 * Also, find any peers that have zero connections here and set up a task to choose at random another peer in the network to
1237 * 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
1238 * until they get a peer.
1240 /* However, they won't automatically be connected to any of their previous peers... How can we handle that? */
1241 /* So now we have choices: do we want them to come back with all their connections? Probably not, but it solves this mess. */
1243 /* Second problem, which is still a problem, is that a FIND_PEER request won't work when a peer has no connections */
1246 * Okay, so here's how this *should* work now.
1248 * 1. We check the min heap for any peers that have 0 connections.
1249 * a. If any are found, we iterate over the heap and just randomly
1250 * choose another peer and ask testing to please connect the two.
1251 * This takes care of the case that a peer just randomly joins the
1252 * network. However, if there are strict topology restrictions
1253 * (imagine a ring) choosing randomly most likely won't help.
1254 * We make sure the connection attempt doesn't take longer than
1255 * the total timeout, but don't care too much about the result.
1256 * b. After that, we still schedule the find peer requests (concurrently
1257 * with the connect attempts most likely). This handles the case
1258 * that the DHT iterates over peerinfo and just needs to try to send
1259 * a message to get connected. This should handle the case that the
1260 * topology is very strict.
1262 * 2. If all peers have > 0 connections, we still send find peer requests
1263 * as long as possible (until timeout is reached) to help out those
1264 * peers that were newly churned and need more connections. This is because
1265 * once all new peers have established a single connection, they won't be
1268 * 3. Once we reach the timeout, we can do no more. We must schedule the
1269 * next iteration of get requests regardless of connections that peers
1270 * may or may not have.
1272 * Caveat: it would be nice to get peers to take data offline with them and
1273 * come back with it (or not) based on the testing framework. The
1274 * same goes for remembering previous connections, but putting either
1275 * into the general testing churn options seems like overkill because
1276 * these are very specialized cases.
1278 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);
1279 if ((peer_count->count == 0) && (GNUNET_TIME_absolute_get_remaining(find_peer_context->endtime).value > 0))
1281 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Found peer with no connections, will choose some peer(s) at random to connect to!\n");
1282 GNUNET_CONTAINER_heap_iterate (find_peer_context->peer_min_heap, &iterate_min_heap_peers, find_peer_context);
1283 GNUNET_SCHEDULER_add_now(sched, &schedule_churn_find_peer_requests, find_peer_context);
1285 else if ((GNUNET_TIME_absolute_get_remaining(find_peer_context->endtime).value > 0) && (find_peer_context->last_sent != 0))
1287 GNUNET_SCHEDULER_add_now(sched, &schedule_churn_find_peer_requests, find_peer_context);
1291 GNUNET_CONTAINER_multihashmap_iterate(find_peer_context->peer_hash, &remove_peer_count, find_peer_context);
1292 GNUNET_CONTAINER_multihashmap_destroy(find_peer_context->peer_hash);
1293 GNUNET_CONTAINER_heap_destroy(find_peer_context->peer_min_heap);
1294 GNUNET_free(find_peer_context);
1295 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Churn round %u of %llu finished, scheduling next GET round.\n", current_churn_round, churn_rounds);
1296 if (dhtlog_handle != NULL)
1298 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
1299 topo_ctx->cont = &do_get;
1300 topo_ctx->cls = all_gets;
1301 topo_ctx->timeout = DEFAULT_GET_TIMEOUT;
1302 topo_ctx->peers_seen = GNUNET_CONTAINER_multihashmap_create(num_peers);
1303 die_task = GNUNET_SCHEDULER_add_delayed (sched, GNUNET_TIME_relative_add(GNUNET_TIME_relative_add(DEFAULT_GET_TIMEOUT, all_get_timeout), DEFAULT_TOPOLOGY_CAPTURE_TIMEOUT),
1304 &end_badly, "from do gets (count_peers_churn_cb)");
1305 GNUNET_SCHEDULER_add_now(sched, &capture_current_topology, topo_ctx);
1309 die_task = GNUNET_SCHEDULER_add_delayed (sched, GNUNET_TIME_relative_add(GNUNET_TIME_relative_add(DEFAULT_GET_TIMEOUT, all_get_timeout), DEFAULT_TOPOLOGY_CAPTURE_TIMEOUT),
1310 &end_badly, "from do gets (count_peers_churn_cb)");
1311 GNUNET_SCHEDULER_add_now(sched, &do_get, all_gets);
1318 * Set up a single find peer request for each peer in the topology. Do this
1319 * until the settle time is over, limited by the number of outstanding requests
1320 * and the time allowed for each one!
1323 schedule_churn_find_peer_requests (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1325 struct FindPeerContext *find_peer_ctx = cls;
1326 struct TestFindPeer *test_find_peer;
1327 struct PeerCount *peer_count;
1330 if (find_peer_ctx->previous_peers == 0) /* First time, go slowly */
1331 find_peer_ctx->total = 1;
1332 else if (find_peer_ctx->current_peers - find_peer_ctx->previous_peers < MIN_FIND_PEER_CUTOFF)
1333 find_peer_ctx->total = find_peer_ctx->total / 2;
1334 else if (find_peer_ctx->current_peers - find_peer_ctx->previous_peers > MAX_FIND_PEER_CUTOFF) /* Found LOTS of peers, still go slowly */
1335 find_peer_ctx->total = find_peer_ctx->last_sent - (find_peer_ctx->last_sent / 4);
1337 find_peer_ctx->total = find_peer_ctx->last_sent * 4;
1339 if (find_peer_ctx->total > max_outstanding_find_peers)
1340 find_peer_ctx->total = max_outstanding_find_peers;
1342 find_peer_ctx->last_sent = find_peer_ctx->total;
1343 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Sending %u find peer messages (after churn)\n", find_peer_ctx->total);
1345 if (find_peer_ctx->total > 0)
1346 find_peer_offset = GNUNET_TIME_relative_divide(find_peer_delay, find_peer_ctx->total);
1349 find_peer_ctx->previous_peers = find_peer_ctx->current_peers;
1350 find_peer_ctx->current_peers = 0;
1351 GNUNET_TESTING_get_topology (pg, &count_peers_churn_cb, find_peer_ctx);
1355 for (i = 0; i < find_peer_ctx->total; i++)
1357 test_find_peer = GNUNET_malloc(sizeof(struct TestFindPeer));
1358 /* If we have sent requests, choose peers with a low number of connections to send requests from */
1359 peer_count = GNUNET_CONTAINER_heap_remove_root(find_peer_ctx->peer_min_heap);
1360 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Sending find peer request from peer with %u connections\n", peer_count->count);
1361 GNUNET_CONTAINER_multihashmap_remove(find_peer_ctx->peer_hash, &peer_count->peer_id.hashPubKey, peer_count);
1362 test_find_peer->daemon = GNUNET_TESTING_daemon_get_by_id(pg, &peer_count->peer_id);
1363 GNUNET_assert(test_find_peer->daemon != NULL);
1364 test_find_peer->find_peer_context = find_peer_ctx;
1365 GNUNET_SCHEDULER_add_delayed(sched, GNUNET_TIME_relative_multiply(find_peer_offset, i), &send_find_peer_request, test_find_peer);
1368 if ((find_peer_ctx->peer_hash == NULL) && (find_peer_ctx->peer_min_heap == NULL))
1370 find_peer_ctx->peer_hash = GNUNET_CONTAINER_multihashmap_create(num_peers);
1371 find_peer_ctx->peer_min_heap = GNUNET_CONTAINER_heap_create(GNUNET_CONTAINER_HEAP_ORDER_MIN);
1375 GNUNET_CONTAINER_multihashmap_iterate(find_peer_ctx->peer_hash, &remove_peer_count, find_peer_ctx);
1376 GNUNET_CONTAINER_multihashmap_destroy(find_peer_ctx->peer_hash);
1377 find_peer_ctx->peer_hash = GNUNET_CONTAINER_multihashmap_create(num_peers);
1380 GNUNET_assert(0 == GNUNET_CONTAINER_multihashmap_size(find_peer_ctx->peer_hash));
1381 GNUNET_assert(0 == GNUNET_CONTAINER_heap_get_size(find_peer_ctx->peer_min_heap));
1384 static void schedule_churn_get_topology (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1386 struct FindPeerContext *find_peer_context = cls;
1387 GNUNET_TESTING_get_topology (pg, &count_peers_churn_cb, find_peer_context);
1391 * Called when churning of the topology has finished.
1393 * @param cls closure unused
1394 * @param emsg NULL on success, or a printable error on failure
1396 static void churn_complete (void *cls, const char *emsg)
1398 struct FindPeerContext *find_peer_context = cls;
1399 struct PeerCount *peer_count;
1401 struct GNUNET_TESTING_Daemon *temp_daemon;
1402 struct TopologyIteratorContext *topo_ctx;
1403 struct GNUNET_TIME_Relative calc_timeout;
1408 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Ending test, churning of peers failed with error `%s'", emsg);
1409 GNUNET_SCHEDULER_add_now(sched, &end_badly, (void *)emsg);
1414 * If we switched any peers on, we have to somehow force connect the new peer to
1415 * SOME bootstrap peer in the network. First schedule a task to find all peers
1416 * with no connections, then choose a random peer for each and connect them.
1418 if (find_peer_context != NULL)
1420 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "We have churned on some peers, so we must schedule find peer requests for them!\n");
1422 for (i = 0; i < num_peers; i ++)
1424 temp_daemon = GNUNET_TESTING_daemon_get(pg, i);
1425 if (GNUNET_YES == GNUNET_TESTING_daemon_running(temp_daemon))
1427 peer_count = GNUNET_malloc (sizeof(struct PeerCount));
1428 memcpy(&peer_count->peer_id, &temp_daemon->id, sizeof(struct GNUNET_PeerIdentity));
1429 GNUNET_assert(peer_count->count == 0);
1430 peer_count->heap_node = GNUNET_CONTAINER_heap_insert(find_peer_context->peer_min_heap, peer_count, peer_count->count);
1431 GNUNET_CONTAINER_multihashmap_put(find_peer_context->peer_hash, &temp_daemon->id.hashPubKey, peer_count, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
1435 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));
1436 GNUNET_SCHEDULER_add_delayed(sched, DEFAULT_PEER_DISCONNECT_TIMEOUT, &schedule_churn_get_topology, find_peer_context);
1437 //GNUNET_TESTING_get_topology (pg, &count_peers_churn_cb, find_peer_context);
1441 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");
1442 if (dhtlog_handle != NULL)
1444 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
1445 topo_ctx->cont = &do_get;
1446 topo_ctx->cls = all_gets;
1447 topo_ctx->timeout = DEFAULT_GET_TIMEOUT;
1448 topo_ctx->peers_seen = GNUNET_CONTAINER_multihashmap_create(num_peers);
1449 calc_timeout = GNUNET_TIME_relative_add(DEFAULT_GET_TIMEOUT, all_get_timeout);
1450 calc_timeout = GNUNET_TIME_relative_add(calc_timeout, DEFAULT_TOPOLOGY_CAPTURE_TIMEOUT);
1451 calc_timeout = GNUNET_TIME_relative_add(calc_timeout, DEFAULT_PEER_DISCONNECT_TIMEOUT);
1452 die_task = GNUNET_SCHEDULER_add_delayed (sched, calc_timeout,
1453 &end_badly, "from do gets (churn_complete)");
1454 GNUNET_SCHEDULER_add_delayed(sched, DEFAULT_PEER_DISCONNECT_TIMEOUT, &capture_current_topology, topo_ctx);
1458 calc_timeout = GNUNET_TIME_relative_add(DEFAULT_GET_TIMEOUT, all_get_timeout);
1459 calc_timeout = GNUNET_TIME_relative_add(calc_timeout, DEFAULT_PEER_DISCONNECT_TIMEOUT);
1460 die_task = GNUNET_SCHEDULER_add_delayed (sched, calc_timeout,
1461 &end_badly, "from do gets (churn_complete)");
1462 if (dhtlog_handle != NULL)
1463 dhtlog_handle->insert_round(DHT_ROUND_GET, rounds_finished);
1464 GNUNET_SCHEDULER_add_delayed(sched, DEFAULT_PEER_DISCONNECT_TIMEOUT, &do_get, all_gets);
1470 * Decide how many peers to turn on or off in this round, make sure the
1471 * numbers actually make sense, then do so. This function sets in motion
1472 * churn, find peer requests for newly joined peers, and issuing get
1473 * requests once the new peers have done so.
1475 * @param cls closure (unused)
1476 * @param cls task context (unused)
1479 churn_peers (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1481 unsigned int count_running;
1482 unsigned int churn_up;
1483 unsigned int churn_down;
1484 struct GNUNET_TIME_Relative timeout;
1485 struct FindPeerContext *find_peer_context;
1487 churn_up = churn_down = 0;
1488 count_running = GNUNET_TESTING_daemons_running(pg);
1489 if (count_running > churn_array[current_churn_round])
1490 churn_down = count_running - churn_array[current_churn_round];
1491 else if (count_running < churn_array[current_churn_round])
1492 churn_up = churn_array[current_churn_round] - count_running;
1494 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Not churning any peers, topology unchanged.\n");
1496 if (churn_up > num_peers - count_running)
1498 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Churn file specified %u peers (up); only have %u!", churn_array[current_churn_round], num_peers);
1499 churn_up = num_peers - count_running;
1501 else if (churn_down > count_running)
1503 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Churn file specified %u peers (down); only have %u!", churn_array[current_churn_round], count_running);
1504 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "This will leave NO peers running (mistake in churn configuration?)!");
1505 churn_down = count_running;
1507 //timeout = GNUNET_TIME_relative_multiply(seconds_per_peer_start, churn_up > 0 ? churn_up : churn_down);
1508 //timeout = GNUNET_TIME_relative_multiply (seconds_per_peer_start, churn_up > 0 ? churn_up : churn_down);
1509 timeout = GNUNET_TIME_relative_multiply(DEFAULT_TIMEOUT, 2); /* FIXME: Lack of intelligent choice here */
1510 find_peer_context = NULL;
1511 if (churn_up > 0) /* Only need to do find peer requests if we turned new peers on */
1513 find_peer_context = GNUNET_malloc(sizeof(struct FindPeerContext));
1514 find_peer_context->count_peers_cb = &count_peers_churn_cb;
1515 find_peer_context->previous_peers = 0;
1516 find_peer_context->current_peers = 0;
1517 find_peer_context->endtime = GNUNET_TIME_relative_to_absolute(timeout);
1518 find_peer_context->peer_hash = GNUNET_CONTAINER_multihashmap_create(num_peers);
1519 find_peer_context->peer_min_heap = GNUNET_CONTAINER_heap_create(GNUNET_CONTAINER_HEAP_ORDER_MIN);
1521 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "churn_peers: want %u total, %u running, starting %u, stopping %u\n",
1522 churn_array[current_churn_round], count_running, churn_up, churn_down);
1523 GNUNET_TESTING_daemons_churn (pg, churn_down, churn_up, timeout, &churn_complete, find_peer_context);
1524 current_churn_round++;
1528 * Task to release DHT handle associated with GET request.
1531 get_stop_finished (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1533 struct TestGetContext *test_get = cls;
1534 struct TopologyIteratorContext *topo_ctx;
1536 /* The dht_handle may be null if this get was scheduled from a down peer */
1537 if (test_get->dht_handle != NULL)
1539 GNUNET_DHT_disconnect(test_get->dht_handle);
1540 outstanding_gets--; /* GET is really finished */
1541 test_get->dht_handle = NULL;
1544 /* Reset the uid (which item to search for) and the daemon (which peer to search from) for later get request iterations */
1545 test_get->uid = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_puts);
1546 test_get->daemon = GNUNET_TESTING_daemon_get(pg, GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers));
1549 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "%d gets succeeded, %d gets failed!\n", gets_completed, gets_failed);
1551 update_meter(get_meter);
1552 if ((gets_completed + gets_failed == num_gets) && (outstanding_gets == 0))
1554 fprintf(stderr, "Canceling die task (get_stop_finished) %llu gets completed, %llu gets failed\n", gets_completed, gets_failed);
1555 GNUNET_SCHEDULER_cancel(sched, die_task);
1556 reset_meter(put_meter);
1557 reset_meter(get_meter);
1560 * 1) Testing is completely finished, call the topology iteration dealy and die
1561 * 2) Testing is not finished, churn the network and do gets again (current_churn_round < churn_rounds)
1562 * 3) Testing is not finished, reschedule all the PUTS *and* GETS again (num_rounds > 1)
1564 if (rounds_finished == total_rounds - 1) /* Everything is finished, end testing */
1566 if (dhtlog_handle != NULL)
1568 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
1569 topo_ctx->cont = &log_dht_statistics;
1570 topo_ctx->peers_seen = GNUNET_CONTAINER_multihashmap_create(num_peers);
1571 GNUNET_SCHEDULER_add_now(sched, &capture_current_topology, topo_ctx);
1574 GNUNET_SCHEDULER_add_now (sched, &finish_testing, NULL);
1576 else if (current_churn_round < churns_per_round * (rounds_finished + 1)) /* Do next round of churn */
1578 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);
1582 if (dhtlog_handle != NULL)
1583 dhtlog_handle->insert_round(DHT_ROUND_CHURN, rounds_finished);
1585 GNUNET_SCHEDULER_add_now(sched, &churn_peers, NULL);
1587 else if (rounds_finished < total_rounds - 1) /* Start a new complete round */
1592 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Round %u of %llu finished, scheduling next round.\n", rounds_finished, total_rounds);
1594 /** We reset the peer daemon for puts and gets on each disconnect, so all we need to do is start another round! */
1595 if (GNUNET_YES == in_dht_replication) /* Replication done in DHT, don't redo puts! */
1597 if (dhtlog_handle != NULL)
1598 dhtlog_handle->insert_round(DHT_ROUND_GET, rounds_finished);
1600 die_task = GNUNET_SCHEDULER_add_delayed (sched, 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),
1601 &end_badly, "from do gets (next round)");
1602 GNUNET_SCHEDULER_add_delayed(sched, GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, round_delay), &do_get, all_gets);
1606 if (dhtlog_handle != NULL)
1607 dhtlog_handle->insert_round(DHT_ROUND_NORMAL, rounds_finished);
1608 die_task = GNUNET_SCHEDULER_add_delayed (sched, 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)),
1609 &end_badly, "from do puts");
1610 GNUNET_SCHEDULER_add_delayed(sched, GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, round_delay), &do_put, all_puts);
1617 * Task to release get handle.
1620 get_stop_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1622 struct TestGetContext *test_get = cls;
1624 if (tc->reason == GNUNET_SCHEDULER_REASON_TIMEOUT)
1626 GNUNET_assert(test_get->get_handle != NULL);
1627 GNUNET_DHT_get_stop(test_get->get_handle);
1628 test_get->get_handle = NULL;
1629 test_get->disconnect_task = GNUNET_SCHEDULER_NO_TASK;
1630 GNUNET_SCHEDULER_add_now (sched, &get_stop_finished, test_get);
1634 * Iterator called if the GET request initiated returns a response.
1636 * @param cls closure
1637 * @param exp when will this value expire
1638 * @param key key of the result
1639 * @param get_path NULL-terminated array of pointers
1640 * to the peers on reverse GET path (or NULL if not recorded)
1641 * @param put_path NULL-terminated array of pointers
1642 * to the peers on the PUT path (or NULL if not recorded)
1643 * @param type type of the result
1644 * @param size number of bytes in data
1645 * @param data pointer to the result data
1647 void get_result_iterator (void *cls,
1648 struct GNUNET_TIME_Absolute exp,
1649 const GNUNET_HashCode * key,
1650 const struct GNUNET_PeerIdentity * const *get_path,
1651 const struct GNUNET_PeerIdentity * const *put_path,
1652 enum GNUNET_BLOCK_Type type,
1656 struct TestGetContext *test_get = cls;
1658 if (test_get->succeeded == GNUNET_YES)
1659 return; /* Get has already been successful, probably ending now */
1661 if (0 != memcmp(&known_keys[test_get->uid], key, sizeof (GNUNET_HashCode))) /* || (0 != memcmp(original_data, data, sizeof(original_data))))*/
1664 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Key or data is not the same as was inserted!\n");
1669 test_get->succeeded = GNUNET_YES;
1672 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Received correct GET response!\n");
1674 GNUNET_SCHEDULER_cancel(sched, test_get->disconnect_task);
1675 GNUNET_SCHEDULER_add_continuation(sched, &get_stop_task, test_get, GNUNET_SCHEDULER_REASON_PREREQ_DONE);
1681 * Set up some data, and call API PUT function
1684 do_get (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1686 struct TestGetContext *test_get = cls;
1690 GNUNET_SCHEDULER_cancel(sched, die_task);
1691 GNUNET_SCHEDULER_add_now(sched, &finish_testing, NULL);
1694 if (test_get == NULL)
1695 return; /* End of the list */
1697 /* Set this here in case we are re-running gets */
1698 test_get->succeeded = GNUNET_NO;
1700 if (GNUNET_YES != GNUNET_TESTING_daemon_running(test_get->daemon)) /* If the peer has been churned off, don't try issuing request from it! */
1702 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Peer we should issue get request from is down, skipping.\n");
1704 GNUNET_SCHEDULER_add_now (sched, &get_stop_finished, test_get);
1705 GNUNET_SCHEDULER_add_now (sched, &do_get, test_get->next);
1709 /* Check if more gets are outstanding than should be */
1710 if (outstanding_gets > max_outstanding_gets)
1712 GNUNET_SCHEDULER_add_delayed (sched, GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MILLISECONDS, 200), &do_get, test_get);
1716 /* Connect to the first peer's DHT */
1717 test_get->dht_handle = GNUNET_DHT_connect(sched, test_get->daemon->cfg, 10);
1718 GNUNET_assert(test_get->dht_handle != NULL);
1721 /* Insert the data at the first peer */
1722 test_get->get_handle = GNUNET_DHT_get_start(test_get->dht_handle,
1724 GNUNET_BLOCK_TYPE_TEST,
1725 &known_keys[test_get->uid],
1729 &get_result_iterator,
1733 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Starting get for uid %u from peer %s\n",
1735 test_get->daemon->shortname);
1737 test_get->disconnect_task = GNUNET_SCHEDULER_add_delayed(sched, get_timeout, &get_stop_task, test_get);
1739 /* Schedule the next request in the linked list of get requests */
1740 GNUNET_SCHEDULER_add_now (sched, &do_get, test_get->next);
1744 * Called when the PUT request has been transmitted to the DHT service.
1745 * Schedule the GET request for some time in the future.
1748 put_finished (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1750 struct TestPutContext *test_put = cls;
1751 struct TopologyIteratorContext *topo_ctx;
1755 if (tc->reason == GNUNET_SCHEDULER_REASON_TIMEOUT)
1756 fprintf(stderr, "PUT Request failed!\n");
1758 /* Reset the daemon (which peer to insert at) for later put request iterations */
1759 if (replicate_same == GNUNET_NO)
1760 test_put->daemon = GNUNET_TESTING_daemon_get(pg, GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers));
1762 GNUNET_SCHEDULER_cancel(sched, test_put->disconnect_task);
1763 test_put->disconnect_task = GNUNET_SCHEDULER_add_now(sched, &put_disconnect_task, test_put);
1764 if (GNUNET_YES == update_meter(put_meter))
1766 GNUNET_assert(outstanding_puts == 0);
1767 GNUNET_SCHEDULER_cancel (sched, die_task);
1768 if (dhtlog_handle != NULL)
1770 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
1771 topo_ctx->cont = &do_get;
1772 topo_ctx->cls = all_gets;
1773 topo_ctx->timeout = DEFAULT_GET_TIMEOUT;
1774 topo_ctx->peers_seen = GNUNET_CONTAINER_multihashmap_create(num_peers);
1775 die_task = GNUNET_SCHEDULER_add_delayed (sched, GNUNET_TIME_relative_add(GNUNET_TIME_relative_add(DEFAULT_GET_TIMEOUT, all_get_timeout), DEFAULT_TOPOLOGY_CAPTURE_TIMEOUT),
1776 &end_badly, "from do gets (put finished)");
1777 GNUNET_SCHEDULER_add_now(sched, &capture_current_topology, topo_ctx);
1781 fprintf(stderr, "Scheduling die task (put finished)\n");
1782 die_task = GNUNET_SCHEDULER_add_delayed (sched, GNUNET_TIME_relative_add(DEFAULT_GET_TIMEOUT, all_get_timeout),
1783 &end_badly, "from do gets (put finished)");
1784 GNUNET_SCHEDULER_add_delayed(sched, DEFAULT_GET_TIMEOUT, &do_get, all_gets);
1791 * Set up some data, and call API PUT function
1794 do_put (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1796 struct TestPutContext *test_put = cls;
1797 char data[test_data_size]; /* Made up data to store */
1801 if (test_put == NULL)
1802 return; /* End of list */
1804 if (GNUNET_YES != GNUNET_TESTING_daemon_running(test_put->daemon)) /* If the peer has been churned off, don't try issuing request from it! */
1806 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Peer we should issue put request at is down, skipping.\n");
1807 update_meter(put_meter);
1808 GNUNET_SCHEDULER_add_now (sched, &do_put, test_put->next);
1812 for (i = 0; i < sizeof(data); i++)
1814 memset(&data[i], GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, (uint32_t)-1), 1);
1817 if (outstanding_puts > max_outstanding_puts)
1819 GNUNET_SCHEDULER_add_delayed (sched, GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MILLISECONDS, 200), &do_put, test_put);
1824 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Starting put for uid %u from peer %s\n",
1826 test_put->daemon->shortname);
1828 test_put->dht_handle = GNUNET_DHT_connect(sched, test_put->daemon->cfg, 10);
1830 GNUNET_assert(test_put->dht_handle != NULL);
1832 GNUNET_DHT_put(test_put->dht_handle,
1833 &known_keys[test_put->uid],
1835 GNUNET_BLOCK_TYPE_TEST,
1837 GNUNET_TIME_UNIT_FOREVER_ABS,
1839 &put_finished, test_put);
1840 test_put->disconnect_task = GNUNET_SCHEDULER_add_delayed(sched, GNUNET_TIME_relative_get_forever(), &put_disconnect_task, test_put);
1841 rand = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, 2);
1842 GNUNET_SCHEDULER_add_delayed(sched, GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, rand), &do_put, test_put->next);
1846 schedule_find_peer_requests (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc);
1849 * Given a number of total peers and a bucket size, estimate the number of
1850 * connections in a perfect kademlia topology.
1852 static unsigned int connection_estimate(unsigned int peer_count, unsigned int bucket_size)
1855 unsigned int filled;
1859 while (i >= bucket_size)
1864 filled++; /* Add one filled bucket to account for one "half full" and some miscellaneous */
1865 return filled * bucket_size * peer_count;
1871 * Callback for iterating over all the peer connections of a peer group.
1873 void count_peers_cb (void *cls,
1874 const struct GNUNET_PeerIdentity *first,
1875 const struct GNUNET_PeerIdentity *second,
1876 struct GNUNET_TIME_Relative latency,
1880 struct FindPeerContext *find_peer_context = cls;
1881 if ((first != NULL) && (second != NULL))
1883 add_new_connection(find_peer_context, first, second);
1884 find_peer_context->current_peers++;
1888 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Peer count finished (%u connections), %u new peers, connection estimate %u (double %u)\n",
1889 find_peer_context->current_peers,
1890 find_peer_context->current_peers - find_peer_context->previous_peers,
1891 connection_estimate(num_peers, DEFAULT_BUCKET_SIZE),
1892 2 * connection_estimate(num_peers, DEFAULT_BUCKET_SIZE));
1894 if ((find_peer_context->current_peers - find_peer_context->previous_peers > FIND_PEER_THRESHOLD) &&
1895 (find_peer_context->current_peers < 2 * connection_estimate(num_peers, DEFAULT_BUCKET_SIZE)) &&
1896 (GNUNET_TIME_absolute_get_remaining(find_peer_context->endtime).value > 0))
1898 GNUNET_SCHEDULER_add_now(sched, &schedule_find_peer_requests, find_peer_context);
1902 GNUNET_CONTAINER_multihashmap_iterate(find_peer_context->peer_hash, &remove_peer_count, find_peer_context);
1903 GNUNET_CONTAINER_multihashmap_destroy(find_peer_context->peer_hash);
1904 GNUNET_CONTAINER_heap_destroy(find_peer_context->peer_min_heap);
1905 GNUNET_free(find_peer_context);
1906 fprintf(stderr, "Not sending any more find peer requests.\n");
1913 * Set up a single find peer request for each peer in the topology. Do this
1914 * until the settle time is over, limited by the number of outstanding requests
1915 * and the time allowed for each one!
1918 schedule_find_peer_requests (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1920 struct FindPeerContext *find_peer_ctx = cls;
1921 struct TestFindPeer *test_find_peer;
1922 struct PeerCount *peer_count;
1926 if (find_peer_ctx->previous_peers == 0) /* First time, go slowly */
1927 find_peer_ctx->total = 1;
1928 else if (find_peer_ctx->current_peers - find_peer_ctx->previous_peers > MAX_FIND_PEER_CUTOFF) /* Found LOTS of peers, still go slowly */
1929 find_peer_ctx->total = find_peer_ctx->last_sent - (find_peer_ctx->last_sent / 8);
1931 else if (find_peer_ctx->current_peers - find_peer_ctx->previous_peers < MIN_FIND_PEER_CUTOFF)
1932 find_peer_ctx->total = find_peer_ctx->last_sent * 2; /* FIXME: always multiply by two (unless above max?) */
1934 find_peer_ctx->total = find_peer_ctx->last_sent;
1937 find_peer_ctx->total = find_peer_ctx->last_sent * 2;
1940 if (find_peer_ctx->total > max_outstanding_find_peers)
1941 find_peer_ctx->total = max_outstanding_find_peers;
1943 find_peer_ctx->last_sent = find_peer_ctx->total;
1944 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Sending %u find peer messages (goal at least %u connections)\n", find_peer_ctx->total, connection_estimate(num_peers, DEFAULT_BUCKET_SIZE));
1946 find_peer_offset = GNUNET_TIME_relative_divide(find_peer_delay, find_peer_ctx->total);
1947 for (i = 0; i < find_peer_ctx->total; i++)
1949 test_find_peer = GNUNET_malloc(sizeof(struct TestFindPeer));
1950 if (find_peer_ctx->previous_peers == 0) /* If we haven't sent any requests, yet choose random peers */
1953 * Attempt to spread find peer requests across even sections of the peer address
1954 * space. Choose basically 1 peer in every num_peers / max_outstanding_requests
1955 * each time, then offset it by a randomish value.
1957 * For instance, if num_peers is 100 and max_outstanding is 10, first chosen peer
1958 * will be between 0 - 10, second between 10 - 20, etc.
1960 random = (num_peers / find_peer_ctx->total) * i;
1961 random = random + GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, (num_peers / find_peer_ctx->total));
1962 if (random >= num_peers)
1964 random = random - num_peers;
1967 random = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers);
1969 test_find_peer->daemon = GNUNET_TESTING_daemon_get(pg, random);
1971 else /* If we have sent requests, choose peers with a low number of connections to send requests from */
1973 peer_count = GNUNET_CONTAINER_heap_remove_root(find_peer_ctx->peer_min_heap);
1974 GNUNET_CONTAINER_multihashmap_remove(find_peer_ctx->peer_hash, &peer_count->peer_id.hashPubKey, peer_count);
1975 test_find_peer->daemon = GNUNET_TESTING_daemon_get_by_id(pg, &peer_count->peer_id);
1976 GNUNET_assert(test_find_peer->daemon != NULL);
1979 test_find_peer->find_peer_context = find_peer_ctx;
1980 GNUNET_SCHEDULER_add_delayed(sched, GNUNET_TIME_relative_multiply(find_peer_offset, i), &send_find_peer_request, test_find_peer);
1983 if ((find_peer_ctx->peer_hash == NULL) && (find_peer_ctx->peer_min_heap == NULL))
1985 find_peer_ctx->peer_hash = GNUNET_CONTAINER_multihashmap_create(num_peers);
1986 find_peer_ctx->peer_min_heap = GNUNET_CONTAINER_heap_create(GNUNET_CONTAINER_HEAP_ORDER_MIN);
1990 GNUNET_CONTAINER_multihashmap_iterate(find_peer_ctx->peer_hash, &remove_peer_count, find_peer_ctx);
1991 GNUNET_CONTAINER_multihashmap_destroy(find_peer_ctx->peer_hash);
1992 find_peer_ctx->peer_hash = GNUNET_CONTAINER_multihashmap_create(num_peers);
1995 GNUNET_assert(0 == GNUNET_CONTAINER_multihashmap_size(find_peer_ctx->peer_hash));
1996 GNUNET_assert(0 == GNUNET_CONTAINER_heap_get_size(find_peer_ctx->peer_min_heap));
2001 * Set up some all of the put and get operations we want
2002 * to do. Allocate data structure for each, add to list,
2003 * then call actual insert functions.
2006 setup_puts_and_gets (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
2009 uint32_t temp_daemon;
2010 struct TestPutContext *test_put;
2011 struct TestGetContext *test_get;
2013 int remember[num_puts][num_peers];
2014 memset(&remember, 0, sizeof(int) * num_puts * num_peers);
2016 known_keys = GNUNET_malloc(sizeof(GNUNET_HashCode) * num_puts);
2017 for (i = 0; i < num_puts; i++)
2019 test_put = GNUNET_malloc(sizeof(struct TestPutContext));
2021 GNUNET_CRYPTO_hash_create_random (GNUNET_CRYPTO_QUALITY_WEAK, &known_keys[i]);
2022 temp_daemon = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers);
2023 test_put->daemon = GNUNET_TESTING_daemon_get(pg, temp_daemon);
2024 test_put->next = all_puts;
2025 all_puts = test_put;
2028 for (i = 0; i < num_gets; i++)
2030 test_get = GNUNET_malloc(sizeof(struct TestGetContext));
2031 test_get->uid = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_puts);
2033 while (remember[test_get->uid][temp_daemon] == 1)
2034 temp_daemon = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers);
2035 remember[test_get->uid][temp_daemon] = 1;
2037 test_get->daemon = GNUNET_TESTING_daemon_get(pg, GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers));
2038 test_get->next = all_gets;
2039 all_gets = test_get;
2042 /*GNUNET_SCHEDULER_cancel (sched, die_task);*/
2043 die_task = GNUNET_SCHEDULER_add_delayed (sched, GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, num_puts * 2),
2044 &end_badly, "from do puts");
2045 GNUNET_SCHEDULER_add_now (sched, &do_put, all_puts);
2050 * Set up some all of the put and get operations we want
2051 * to do. Allocate data structure for each, add to list,
2052 * then call actual insert functions.
2055 continue_puts_and_gets (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
2059 struct TopologyIteratorContext *topo_ctx;
2060 struct FindPeerContext *find_peer_context;
2061 if (dhtlog_handle != NULL)
2063 if (settle_time >= 180 * 2)
2064 max = (settle_time / 180) - 2;
2067 for (i = 1; i < max; i++)
2069 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
2070 topo_ctx->current_iteration = i;
2071 topo_ctx->total_iterations = max;
2072 topo_ctx->peers_seen = GNUNET_CONTAINER_multihashmap_create(num_peers);
2073 //fprintf(stderr, "scheduled topology iteration in %d minutes\n", i);
2074 GNUNET_SCHEDULER_add_delayed(sched, GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MINUTES, i * 3), &capture_current_topology, topo_ctx);
2076 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
2077 topo_ctx->cont = &setup_puts_and_gets;
2078 topo_ctx->peers_seen = GNUNET_CONTAINER_multihashmap_create(num_peers);
2079 GNUNET_SCHEDULER_add_delayed(sched, GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, (settle_time + 90)), &capture_current_topology, topo_ctx);
2082 GNUNET_SCHEDULER_add_delayed(sched, GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, (settle_time + 90)), &setup_puts_and_gets, NULL);
2084 if (dhtlog_handle != NULL)
2085 dhtlog_handle->insert_round(DHT_ROUND_NORMAL, rounds_finished);
2087 if (GNUNET_YES == do_find_peer)
2089 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Scheduling find peer requests during \"settle\" time.\n");
2090 find_peer_context = GNUNET_malloc(sizeof(struct FindPeerContext));
2091 find_peer_context->count_peers_cb = &count_peers_cb;
2092 find_peer_context->endtime = GNUNET_TIME_relative_to_absolute(GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, settle_time));
2093 GNUNET_SCHEDULER_add_now(sched, &schedule_find_peer_requests, find_peer_context);
2097 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Assuming automatic DHT find peer requests.\n");
2102 * Task to release DHT handles
2105 malicious_disconnect_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
2107 struct MaliciousContext *ctx = cls;
2108 outstanding_malicious--;
2109 malicious_completed++;
2110 ctx->disconnect_task = GNUNET_SCHEDULER_NO_TASK;
2111 GNUNET_DHT_disconnect(ctx->dht_handle);
2112 ctx->dht_handle = NULL;
2115 if (malicious_completed == malicious_getters + malicious_putters + malicious_droppers)
2117 GNUNET_SCHEDULER_cancel(sched, die_task);
2118 fprintf(stderr, "Finished setting all malicious peers up, calling continuation!\n");
2119 if (dhtlog_handle != NULL)
2120 GNUNET_SCHEDULER_add_now (sched,
2121 &continue_puts_and_gets, NULL);
2123 GNUNET_SCHEDULER_add_delayed (sched,
2124 GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, settle_time),
2125 &continue_puts_and_gets, NULL);
2131 * Task to release DHT handles
2134 malicious_done_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
2136 struct MaliciousContext *ctx = cls;
2137 GNUNET_SCHEDULER_cancel(sched, ctx->disconnect_task);
2138 GNUNET_SCHEDULER_add_now(sched, &malicious_disconnect_task, ctx);
2142 * Set up some data, and call API PUT function
2145 set_malicious (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
2147 struct MaliciousContext *ctx = cls;
2149 if (outstanding_malicious > DEFAULT_MAX_OUTSTANDING_GETS)
2151 GNUNET_SCHEDULER_add_delayed (sched, GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MILLISECONDS, 100), &set_malicious, ctx);
2155 if (ctx->dht_handle == NULL)
2157 ctx->dht_handle = GNUNET_DHT_connect(sched, ctx->daemon->cfg, 1);
2158 outstanding_malicious++;
2161 GNUNET_assert(ctx->dht_handle != NULL);
2165 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Setting peer %s malicious type %d\n",
2166 ctx->daemon->shortname, ctx->malicious_type);
2169 switch (ctx->malicious_type)
2171 case GNUNET_MESSAGE_TYPE_DHT_MALICIOUS_GET:
2172 GNUNET_DHT_set_malicious_getter(ctx->dht_handle, malicious_get_frequency);
2173 GNUNET_SCHEDULER_add_now (sched,
2174 &malicious_done_task, ctx);
2176 case GNUNET_MESSAGE_TYPE_DHT_MALICIOUS_PUT:
2177 GNUNET_DHT_set_malicious_putter(ctx->dht_handle, malicious_put_frequency);
2178 GNUNET_SCHEDULER_add_now (sched,
2179 &malicious_done_task, ctx);
2181 case GNUNET_MESSAGE_TYPE_DHT_MALICIOUS_DROP:
2182 GNUNET_DHT_set_malicious_dropper(ctx->dht_handle);
2183 GNUNET_SCHEDULER_add_now (sched, &malicious_done_task, ctx);
2189 ctx->disconnect_task = GNUNET_SCHEDULER_add_delayed(sched,
2190 GNUNET_TIME_UNIT_FOREVER_REL,
2191 &malicious_disconnect_task, ctx);
2195 * Select randomly from set of known peers,
2196 * set the desired number of peers to the
2197 * proper malicious types.
2200 setup_malicious_peers (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
2202 struct MaliciousContext *ctx;
2204 uint32_t temp_daemon;
2206 for (i = 0; i < malicious_getters; i++)
2208 ctx = GNUNET_malloc(sizeof(struct MaliciousContext));
2209 temp_daemon = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers);
2210 ctx->daemon = GNUNET_TESTING_daemon_get(pg, temp_daemon);
2211 ctx->malicious_type = GNUNET_MESSAGE_TYPE_DHT_MALICIOUS_GET;
2212 GNUNET_SCHEDULER_add_now (sched, &set_malicious, ctx);
2216 for (i = 0; i < malicious_putters; i++)
2218 ctx = GNUNET_malloc(sizeof(struct MaliciousContext));
2219 temp_daemon = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers);
2220 ctx->daemon = GNUNET_TESTING_daemon_get(pg, temp_daemon);
2221 ctx->malicious_type = GNUNET_MESSAGE_TYPE_DHT_MALICIOUS_PUT;
2222 GNUNET_SCHEDULER_add_now (sched, &set_malicious, ctx);
2226 for (i = 0; i < malicious_droppers; i++)
2228 ctx = GNUNET_malloc(sizeof(struct MaliciousContext));
2229 temp_daemon = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers);
2230 ctx->daemon = GNUNET_TESTING_daemon_get(pg, temp_daemon);
2231 ctx->malicious_type = GNUNET_MESSAGE_TYPE_DHT_MALICIOUS_DROP;
2232 GNUNET_SCHEDULER_add_now (sched, &set_malicious, ctx);
2236 * If we have any malicious peers to set up,
2237 * the malicious callback should call continue_gets_and_puts
2239 if (malicious_getters + malicious_putters + malicious_droppers > 0)
2241 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Giving malicious set tasks some time before starting testing!\n");
2242 die_task = GNUNET_SCHEDULER_add_delayed (sched, GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, (malicious_getters + malicious_putters + malicious_droppers) * 2),
2243 &end_badly, "from set malicious");
2245 else /* Otherwise, continue testing */
2247 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Scheduling continue_puts_and_gets now!\n");
2248 GNUNET_SCHEDULER_add_now (sched,
2249 &continue_puts_and_gets, NULL);
2254 * This function is called whenever a connection attempt is finished between two of
2255 * the started peers (started with GNUNET_TESTING_daemons_start). The total
2256 * number of times this function is called should equal the number returned
2257 * from the GNUNET_TESTING_connect_topology call.
2259 * The emsg variable is NULL on success (peers connected), and non-NULL on
2260 * failure (peers failed to connect).
2263 topology_callback (void *cls,
2264 const struct GNUNET_PeerIdentity *first,
2265 const struct GNUNET_PeerIdentity *second,
2267 const struct GNUNET_CONFIGURATION_Handle *first_cfg,
2268 const struct GNUNET_CONFIGURATION_Handle *second_cfg,
2269 struct GNUNET_TESTING_Daemon *first_daemon,
2270 struct GNUNET_TESTING_Daemon *second_daemon,
2273 struct TopologyIteratorContext *topo_ctx;
2276 total_connections++;
2278 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "connected peer %s to peer %s, distance %u\n",
2279 first_daemon->shortname,
2280 second_daemon->shortname,
2286 failed_connections++;
2288 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Failed to connect peer %s to peer %s with error :\n%s\n",
2289 first_daemon->shortname,
2290 second_daemon->shortname, emsg);
2294 GNUNET_assert(peer_connect_meter != NULL);
2295 if (GNUNET_YES == update_meter(peer_connect_meter))
2298 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2299 "Created %d total connections, which is our target number! Starting next phase of testing.\n",
2302 if (dhtlog_handle != NULL)
2304 dhtlog_handle->update_connections (trialuid, total_connections);
2305 dhtlog_handle->insert_topology(expected_connections);
2308 GNUNET_SCHEDULER_cancel (sched, die_task);
2309 /*die_task = GNUNET_SCHEDULER_add_delayed (sched, DEFAULT_TIMEOUT,
2310 &end_badly, "from setup puts/gets");*/
2311 if ((dhtlog_handle != NULL) && (settle_time > 0))
2313 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
2314 topo_ctx->cont = &setup_malicious_peers;
2315 topo_ctx->peers_seen = GNUNET_CONTAINER_multihashmap_create(num_peers);
2316 //topo_ctx->cont = &continue_puts_and_gets;
2317 GNUNET_SCHEDULER_add_now(sched, &capture_current_topology, topo_ctx);
2321 GNUNET_SCHEDULER_add_now(sched, &setup_malicious_peers, NULL);
2322 /*GNUNET_SCHEDULER_add_delayed (sched,
2323 GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, settle_time),
2324 &continue_puts_and_gets, NULL);*/
2327 else if (total_connections + failed_connections == expected_connections)
2329 GNUNET_SCHEDULER_cancel (sched, die_task);
2330 die_task = GNUNET_SCHEDULER_add_now (sched,
2331 &end_badly, "from topology_callback (too many failed connections)");
2336 peers_started_callback (void *cls,
2337 const struct GNUNET_PeerIdentity *id,
2338 const struct GNUNET_CONFIGURATION_Handle *cfg,
2339 struct GNUNET_TESTING_Daemon *d, const char *emsg)
2343 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Failed to start daemon with error: `%s'\n",
2347 GNUNET_assert (id != NULL);
2350 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Started daemon %llu out of %llu\n",
2351 (num_peers - peers_left) + 1, num_peers);
2356 if (GNUNET_YES == update_meter(peer_start_meter))
2359 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2360 "All %d daemons started, now connecting peers!\n",
2363 GNUNET_SCHEDULER_cancel (sched, die_task);
2365 expected_connections = -1;
2366 if ((pg != NULL) && (peers_left == 0))
2368 expected_connections = GNUNET_TESTING_connect_topology (pg, connect_topology, connect_topology_option, connect_topology_option_modifier);
2370 peer_connect_meter = create_meter(expected_connections, "Peer connection ", GNUNET_YES);
2371 fprintf(stderr, "Have %d expected connections\n", expected_connections);
2374 if (expected_connections == GNUNET_SYSERR)
2376 die_task = GNUNET_SCHEDULER_add_now (sched,
2377 &end_badly, "from connect topology (bad return)");
2380 die_task = GNUNET_SCHEDULER_add_delayed (sched,
2381 GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, DEFAULT_CONNECT_TIMEOUT * expected_connections),
2382 &end_badly, "from connect topology (timeout)");
2391 peers_left = num_peers; /* Reset counter */
2392 if (GNUNET_TESTING_create_topology (pg, topology, blacklist_topology, blacklist_transports) != GNUNET_SYSERR)
2395 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2396 "Topology set up, now starting peers!\n");
2398 GNUNET_TESTING_daemons_continue_startup(pg);
2402 GNUNET_SCHEDULER_cancel (sched, die_task);
2403 die_task = GNUNET_SCHEDULER_add_now (sched,
2404 &end_badly, "from create topology (bad return)");
2406 GNUNET_free_non_null(blacklist_transports);
2407 GNUNET_SCHEDULER_cancel (sched, die_task);
2408 die_task = GNUNET_SCHEDULER_add_delayed (sched,
2409 GNUNET_TIME_relative_multiply(seconds_per_peer_start, num_peers),
2410 &end_badly, "from continue startup (timeout)");
2414 * Callback indicating that the hostkey was created for a peer.
2417 * @param id the peer identity
2418 * @param d the daemon handle (pretty useless at this point, remove?)
2419 * @param emsg non-null on failure
2421 void hostkey_callback (void *cls,
2422 const struct GNUNET_PeerIdentity *id,
2423 struct GNUNET_TESTING_Daemon *d,
2428 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Hostkey callback received error: %s\n", emsg);
2432 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2433 "Hostkey (%d/%d) created for peer `%s'\n",
2434 num_peers - peers_left, num_peers, GNUNET_i2s(id));
2438 if (GNUNET_YES == update_meter(hostkey_meter))
2441 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2442 "All %d hostkeys created, now creating topology!\n",
2445 GNUNET_SCHEDULER_cancel (sched, die_task);
2446 /* Set up task in case topology creation doesn't finish
2447 * within a reasonable amount of time */
2448 die_task = GNUNET_SCHEDULER_add_delayed (sched,
2449 DEFAULT_TOPOLOGY_TIMEOUT,
2450 &end_badly, "from create_topology");
2451 GNUNET_SCHEDULER_add_now(sched, &create_topology, NULL);
2459 struct GNUNET_SCHEDULER_Handle *s,
2461 const char *cfgfile, const struct GNUNET_CONFIGURATION_Handle *cfg)
2464 struct GNUNET_DHTLOG_TrialInfo trial_info;
2465 struct GNUNET_TESTING_Host *hosts;
2466 struct GNUNET_TESTING_Host *temphost;
2467 struct GNUNET_TESTING_Host *tempnext;
2469 char *connect_topology_str;
2470 char *blacklist_topology_str;
2471 char *connect_topology_option_str;
2472 char *connect_topology_option_modifier_string;
2474 char *topology_percentage_str;
2475 float topology_percentage;
2476 char *topology_probability_str;
2478 float topology_probability;
2479 unsigned long long temp_config_number;
2482 int strict_kademlia;
2486 char *churn_filename;
2489 unsigned int line_number;
2493 rounds_finished = 0;
2494 memset(&trial_info, 0, sizeof(struct GNUNET_DHTLOG_TrialInfo));
2495 /* Get path from configuration file */
2496 if (GNUNET_YES != GNUNET_CONFIGURATION_get_value_string(cfg, "paths", "servicehome", &test_directory))
2503 * Get DHT specific testing options.
2505 if ((GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht_testing", "mysql_logging")) ||
2506 (GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht_testing", "mysql_logging_extended")))
2508 dhtlog_handle = GNUNET_DHTLOG_connect(cfg);
2509 if (dhtlog_handle == NULL)
2511 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2512 "Could not connect to mysql server for logging, will NOT log dht operations!");
2518 stop_closest = GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht", "stop_on_closest");
2519 if (stop_closest == GNUNET_SYSERR)
2520 stop_closest = GNUNET_NO;
2522 stop_found = GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht", "stop_found");
2523 if (stop_found == GNUNET_SYSERR)
2524 stop_found = GNUNET_NO;
2526 strict_kademlia = GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht", "strict_kademlia");
2527 if (strict_kademlia == GNUNET_SYSERR)
2528 strict_kademlia = GNUNET_NO;
2531 GNUNET_CONFIGURATION_get_value_string (cfg, "dht_testing", "comment",
2533 trialmessage = NULL;
2536 /** Check for a churn file to do churny simulation */
2538 GNUNET_CONFIGURATION_get_value_string(cfg, "dht_testing", "churn_file",
2541 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Reading churn data from %s\n", churn_filename);
2542 if (GNUNET_OK != GNUNET_DISK_file_test (churn_filename))
2544 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Error reading churn file!\n");
2547 if ((0 != STAT (churn_filename, &frstat)) || (frstat.st_size == 0))
2549 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
2550 "Could not open file specified for churn data, ending test!");
2552 GNUNET_free_non_null(trialmessage);
2553 GNUNET_free(churn_filename);
2557 churn_data = GNUNET_malloc_large (frstat.st_size);
2558 GNUNET_assert(churn_data != NULL);
2559 if (frstat.st_size !=
2560 GNUNET_DISK_fn_read (churn_filename, churn_data, frstat.st_size))
2562 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
2563 "Could not read file %s specified for churn, ending test!", churn_filename);
2564 GNUNET_free (churn_filename);
2565 GNUNET_free (churn_data);
2566 GNUNET_free_non_null(trialmessage);
2570 GNUNET_free_non_null(churn_filename);
2574 /* Read the first line */
2575 while (count < frstat.st_size)
2578 if (((churn_data[count] == '\n')) && (buf != &churn_data[count]))
2580 churn_data[count] = '\0';
2581 if (1 != sscanf(buf, "%u", &churn_rounds))
2583 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Failed to read number of rounds from %s, ending test!\n", churn_filename);
2584 GNUNET_free_non_null(trialmessage);
2585 GNUNET_free(churn_filename);
2589 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Read %u rounds from churn file\n", churn_rounds);
2590 buf = &churn_data[count + 1];
2591 churn_array = GNUNET_malloc(sizeof(unsigned int) * churn_rounds);
2592 break; /* Done with this part */
2596 if (GNUNET_OK != GNUNET_CONFIGURATION_get_value_number(cfg, "dht_testing", "churns_per_round", &churns_per_round))
2598 churns_per_round = (unsigned long long)churn_rounds;
2602 while ((count < frstat.st_size) && (line_number < churn_rounds))
2605 if (((churn_data[count] == '\n')) && (buf != &churn_data[count]))
2607 churn_data[count] = '\0';
2609 ret = sscanf(buf, "%u", &churn_array[line_number]);
2612 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Read %u peers in round %u\n", churn_array[line_number], line_number);
2617 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Error reading line `%s' in hostfile\n", buf);
2618 buf = &churn_data[count + 1];
2621 buf = &churn_data[count + 1];
2623 else if (churn_data[count] == '\n') /* Blank line */
2624 buf = &churn_data[count + 1];
2627 GNUNET_free_non_null(churn_data);
2629 /** Check for a hostfile containing user@host:port triples */
2631 GNUNET_CONFIGURATION_get_value_string (cfg, "testing", "hostfile",
2637 if (hostfile != NULL)
2639 if (GNUNET_OK != GNUNET_DISK_file_test (hostfile))
2640 GNUNET_DISK_fn_write (hostfile, NULL, 0, GNUNET_DISK_PERM_USER_READ
2641 | GNUNET_DISK_PERM_USER_WRITE);
2642 if ((0 != STAT (hostfile, &frstat)) || (frstat.st_size == 0))
2644 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
2645 "Could not open file specified for host list, ending test!");
2647 GNUNET_free_non_null(trialmessage);
2648 GNUNET_free(hostfile);
2652 data = GNUNET_malloc_large (frstat.st_size);
2653 GNUNET_assert(data != NULL);
2654 if (frstat.st_size !=
2655 GNUNET_DISK_fn_read (hostfile, data, frstat.st_size))
2657 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
2658 "Could not read file %s specified for host list, ending test!", hostfile);
2659 GNUNET_free (hostfile);
2661 GNUNET_free_non_null(trialmessage);
2665 GNUNET_free_non_null(hostfile);
2669 while (count < frstat.st_size)
2672 /* if (((data[count] == '\n') || (data[count] == '\0')) && (buf != &data[count]))*/
2673 if (((data[count] == '\n')) && (buf != &data[count]))
2676 temphost = GNUNET_malloc(sizeof(struct GNUNET_TESTING_Host));
2677 ret = sscanf(buf, "%a[a-zA-Z0-9]@%a[a-zA-Z0-9.]:%hd", &temphost->username, &temphost->hostname, &temphost->port);
2680 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Successfully read host %s, port %d and user %s from file\n", temphost->hostname, temphost->port, temphost->username);
2684 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Error reading line `%s' in hostfile\n", buf);
2685 GNUNET_free(temphost);
2686 buf = &data[count + 1];
2689 /* temphost->hostname = buf; */
2690 temphost->next = hosts;
2692 buf = &data[count + 1];
2694 else if ((data[count] == '\n') || (data[count] == '\0'))
2695 buf = &data[count + 1];
2700 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "malicious_getters",
2701 &malicious_getters))
2702 malicious_getters = 0;
2705 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "malicious_putters",
2706 &malicious_putters))
2707 malicious_putters = 0;
2710 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "malicious_droppers",
2711 &malicious_droppers))
2712 malicious_droppers = 0;
2715 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "settle_time",
2719 if (GNUNET_SYSERR ==
2720 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "num_puts",
2722 num_puts = num_peers;
2724 if (GNUNET_SYSERR ==
2725 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "num_gets",
2727 num_gets = num_peers;
2730 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "find_peer_delay",
2731 &temp_config_number))
2732 find_peer_delay = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_config_number);
2734 find_peer_delay = DEFAULT_FIND_PEER_DELAY;
2737 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "concurrent_find_peers",
2738 &temp_config_number))
2739 max_outstanding_find_peers = temp_config_number;
2741 max_outstanding_find_peers = DEFAULT_MAX_OUTSTANDING_FIND_PEERS;
2744 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "get_timeout",
2745 &temp_config_number))
2746 get_timeout = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_config_number);
2748 get_timeout = DEFAULT_GET_TIMEOUT;
2751 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "concurrent_puts",
2752 &temp_config_number))
2753 max_outstanding_puts = temp_config_number;
2755 max_outstanding_puts = DEFAULT_MAX_OUTSTANDING_PUTS;
2758 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "concurrent_gets",
2759 &temp_config_number))
2760 max_outstanding_gets = temp_config_number;
2762 max_outstanding_gets = DEFAULT_MAX_OUTSTANDING_GETS;
2765 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "timeout",
2766 &temp_config_number))
2767 all_get_timeout = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_config_number);
2769 all_get_timeout.value = get_timeout.value * num_gets;
2772 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "get_delay",
2773 &temp_config_number))
2774 get_delay = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_config_number);
2776 get_delay = DEFAULT_GET_DELAY;
2779 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "put_delay",
2780 &temp_config_number))
2781 put_delay = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_config_number);
2783 put_delay = DEFAULT_PUT_DELAY;
2786 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "peer_start_timeout",
2787 &temp_config_number))
2788 seconds_per_peer_start = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_config_number);
2790 seconds_per_peer_start = DEFAULT_SECONDS_PER_PEER_START;
2793 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "data_size",
2794 &temp_config_number))
2795 test_data_size = temp_config_number;
2797 test_data_size = DEFAULT_TEST_DATA_SIZE;
2800 * Get testing related options.
2802 if (GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno(cfg, "DHT_TESTING", "REPLICATE_SAME"))
2804 replicate_same = GNUNET_YES;
2807 if (GNUNET_NO == GNUNET_CONFIGURATION_get_value_time (cfg, "DHT_TESTING",
2808 "MALICIOUS_GET_FREQUENCY",
2809 &malicious_get_frequency))
2810 malicious_get_frequency = DEFAULT_MALICIOUS_GET_FREQUENCY;
2813 if (GNUNET_NO == GNUNET_CONFIGURATION_get_value_time (cfg, "DHT_TESTING",
2814 "MALICIOUS_PUT_FREQUENCY",
2815 &malicious_put_frequency))
2816 malicious_put_frequency = DEFAULT_MALICIOUS_PUT_FREQUENCY;
2819 /* The normal behavior of the DHT is to do find peer requests
2820 * on its own. Only if this is explicitly turned off should
2821 * the testing driver issue find peer requests (even though
2822 * this is likely the default when testing).
2825 GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht",
2828 do_find_peer = GNUNET_YES;
2832 GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht",
2835 in_dht_replication = GNUNET_YES;
2838 if (GNUNET_YES != GNUNET_CONFIGURATION_get_value_number (cfg, "DHT_TESTING",
2845 if (GNUNET_YES == GNUNET_CONFIGURATION_get_value_number (cfg, "DHT_TESTING",
2847 &temp_config_number))
2849 find_peer_delay = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_config_number);
2852 find_peer_delay = DEFAULT_FIND_PEER_DELAY;
2854 if (GNUNET_YES != GNUNET_CONFIGURATION_get_value_number(cfg, "DHT_TESTING", "ROUND_DELAY", &round_delay))
2857 if (GNUNET_NO == GNUNET_CONFIGURATION_get_value_number (cfg, "DHT_TESTING",
2858 "OUTSTANDING_FIND_PEERS",
2859 &max_outstanding_find_peers))
2860 max_outstanding_find_peers = DEFAULT_MAX_OUTSTANDING_FIND_PEERS;
2862 if (GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht", "strict_kademlia"))
2863 max_outstanding_find_peers = max_outstanding_find_peers * 1;
2865 find_peer_offset = GNUNET_TIME_relative_divide (find_peer_delay, max_outstanding_find_peers);
2867 if (GNUNET_SYSERR ==
2868 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "num_rounds",
2874 topology_str = NULL;
2876 GNUNET_CONFIGURATION_get_value_string(cfg, "testing", "topology",
2877 &topology_str)) && (GNUNET_NO == GNUNET_TESTING_topology_get(&topology, topology_str)))
2879 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2880 "Invalid topology `%s' given for section %s option %s\n", topology_str, "TESTING", "TOPOLOGY");
2881 topology = GNUNET_TESTING_TOPOLOGY_CLIQUE; /* Defaults to NONE, so set better default here */
2885 GNUNET_CONFIGURATION_get_value_string (cfg, "testing", "percentage",
2886 &topology_percentage_str))
2887 topology_percentage = 0.5;
2890 topology_percentage = atof (topology_percentage_str);
2891 GNUNET_free(topology_percentage_str);
2895 GNUNET_CONFIGURATION_get_value_string (cfg, "testing", "probability",
2896 &topology_probability_str))
2897 topology_probability = 0.5;
2900 topology_probability = atof (topology_probability_str);
2901 GNUNET_free(topology_probability_str);
2905 GNUNET_CONFIGURATION_get_value_string(cfg, "testing", "connect_topology",
2906 &connect_topology_str)) && (GNUNET_NO == GNUNET_TESTING_topology_get(&connect_topology, connect_topology_str)))
2908 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2909 "Invalid connect topology `%s' given for section %s option %s\n", connect_topology_str, "TESTING", "CONNECT_TOPOLOGY");
2911 GNUNET_free_non_null(connect_topology_str);
2914 GNUNET_CONFIGURATION_get_value_string(cfg, "testing", "connect_topology_option",
2915 &connect_topology_option_str)) && (GNUNET_NO == GNUNET_TESTING_topology_option_get(&connect_topology_option, connect_topology_option_str)))
2917 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2918 "Invalid connect topology option `%s' given for section %s option %s\n", connect_topology_option_str, "TESTING", "CONNECT_TOPOLOGY_OPTION");
2919 connect_topology_option = GNUNET_TESTING_TOPOLOGY_OPTION_ALL; /* Defaults to NONE, set to ALL */
2921 GNUNET_free_non_null(connect_topology_option_str);
2924 GNUNET_CONFIGURATION_get_value_string (cfg, "testing", "connect_topology_option_modifier",
2925 &connect_topology_option_modifier_string))
2927 if (sscanf(connect_topology_option_modifier_string, "%lf", &connect_topology_option_modifier) != 1)
2929 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2930 _("Invalid value `%s' for option `%s' in section `%s': expected float\n"),
2931 connect_topology_option_modifier_string,
2932 "connect_topology_option_modifier",
2935 GNUNET_free (connect_topology_option_modifier_string);
2938 if (GNUNET_YES != GNUNET_CONFIGURATION_get_value_string (cfg, "testing", "blacklist_transports",
2939 &blacklist_transports))
2940 blacklist_transports = NULL;
2943 GNUNET_CONFIGURATION_get_value_string(cfg, "testing", "blacklist_topology",
2944 &blacklist_topology_str)) &&
2945 (GNUNET_NO == GNUNET_TESTING_topology_get(&blacklist_topology, blacklist_topology_str)))
2947 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2948 "Invalid topology `%s' given for section %s option %s\n", topology_str, "TESTING", "BLACKLIST_TOPOLOGY");
2950 GNUNET_free_non_null(topology_str);
2951 GNUNET_free_non_null(blacklist_topology_str);
2953 /* Get number of peers to start from configuration */
2954 if (GNUNET_SYSERR ==
2955 GNUNET_CONFIGURATION_get_value_number (cfg, "testing", "num_peers",
2958 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2959 "Number of peers must be specified in section %s option %s\n", topology_str, "TESTING", "NUM_PEERS");
2961 GNUNET_assert(num_peers > 0 && num_peers < (unsigned long long)-1);
2962 /* Set peers_left so we know when all peers started */
2963 peers_left = num_peers;
2966 /* Set up a task to end testing if peer start fails */
2967 die_task = GNUNET_SCHEDULER_add_delayed (sched,
2968 GNUNET_TIME_relative_multiply(seconds_per_peer_start, num_peers),
2969 &end_badly, "didn't generate all hostkeys within allowed startup time!");
2971 if (dhtlog_handle == NULL)
2972 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2973 "dhtlog_handle is NULL!");
2975 trial_info.other_identifier = (unsigned int)trial_to_run;
2976 trial_info.num_nodes = peers_left;
2977 trial_info.topology = topology;
2978 trial_info.blacklist_topology = blacklist_topology;
2979 trial_info.connect_topology = connect_topology;
2980 trial_info.connect_topology_option = connect_topology_option;
2981 trial_info.connect_topology_option_modifier = connect_topology_option_modifier;
2982 trial_info.topology_percentage = topology_percentage;
2983 trial_info.topology_probability = topology_probability;
2984 trial_info.puts = num_puts;
2985 trial_info.gets = num_gets;
2986 trial_info.concurrent = max_outstanding_gets;
2987 trial_info.settle_time = settle_time;
2988 trial_info.num_rounds = 1;
2989 trial_info.malicious_getters = malicious_getters;
2990 trial_info.malicious_putters = malicious_putters;
2991 trial_info.malicious_droppers = malicious_droppers;
2992 trial_info.malicious_get_frequency = malicious_get_frequency.value;
2993 trial_info.malicious_put_frequency = malicious_put_frequency.value;
2994 trial_info.stop_closest = stop_closest;
2995 trial_info.stop_found = stop_found;
2996 trial_info.strict_kademlia = strict_kademlia;
2998 if (trialmessage != NULL)
2999 trial_info.message = trialmessage;
3001 trial_info.message = "";
3003 if (dhtlog_handle != NULL)
3004 dhtlog_handle->insert_trial(&trial_info);
3006 GNUNET_free_non_null(trialmessage);
3008 hostkey_meter = create_meter(peers_left, "Hostkeys created ", GNUNET_YES);
3009 peer_start_meter = create_meter(peers_left, "Peers started ", GNUNET_YES);
3011 put_meter = create_meter(num_puts, "Puts completed ", GNUNET_YES);
3012 get_meter = create_meter(num_gets, "Gets completed ", GNUNET_YES);
3013 pg = GNUNET_TESTING_daemons_start (sched, cfg,
3015 GNUNET_TIME_relative_multiply(seconds_per_peer_start, num_peers),
3016 &hostkey_callback, NULL,
3017 &peers_started_callback, NULL,
3018 &topology_callback, NULL,
3021 while (temphost != NULL)
3023 tempnext = temphost->next;
3024 GNUNET_free (temphost->username);
3025 GNUNET_free (temphost->hostname);
3026 GNUNET_free (temphost);
3027 temphost = tempnext;
3033 main (int argc, char *argv[])
3036 struct GNUNET_GETOPT_CommandLineOption options[] = {
3037 GNUNET_GETOPT_OPTION_END
3040 ret = GNUNET_PROGRAM_run (argc,
3041 argv, "gnunet-dht-driver", "nohelp",
3042 options, &run, &ok);
3044 if (ret != GNUNET_OK)
3046 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "`gnunet-dht-driver': Failed with error code %d\n", ret);
3050 * Need to remove base directory, subdirectories taken care
3051 * of by the testing framework.
3053 if (GNUNET_DISK_directory_remove (test_directory) != GNUNET_OK)
3055 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Failed to remove testing directory %s\n", test_directory);
3060 /* end of gnunet-dht-driver.c */