2 This file is part of GNUnet.
3 (C) 2009 Christian Grothoff (and other contributing authors)
5 GNUnet is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published
7 by the Free Software Foundation; either version 3, or (at your
8 option) any later version.
10 GNUnet is distributed in the hope that it will be useful, but
11 WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with GNUnet; see the file COPYING. If not, write to the
17 Free Software Foundation, Inc., 59 Temple Place - Suite 330,
18 Boston, MA 02111-1307, USA.
21 * @file dht/gnunet-dht-driver.c
22 * @brief Driver for setting up a group of gnunet peers and
23 * then issuing GETS and PUTS on the DHT. Coarse results
24 * are reported, fine grained results (if requested) are
25 * logged to a (mysql) database, or to file.
26 * @author Nathan Evans (who to blame)
29 #ifndef HAVE_MALICIOUS
32 #include "gnunet_testing_lib.h"
33 #include "gnunet_core_service.h"
34 #include "gnunet_dht_service.h"
39 #define VERBOSE GNUNET_NO
41 /* Timeout for entire driver to run */
42 #define DEFAULT_TIMEOUT GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MINUTES, 5)
44 /* Timeout for waiting for (individual) replies to get requests */
45 #define DEFAULT_GET_TIMEOUT GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 90)
47 #define DEFAULT_TOPOLOGY_CAPTURE_TIMEOUT GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 90)
49 /* Timeout for waiting for gets to be sent to the service */
50 #define DEFAULT_GET_DELAY GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 10)
52 /* Timeout for waiting for puts to be sent to the service */
53 #define DEFAULT_PUT_DELAY GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 10)
55 /* Time to allow a find peer request to take */
56 #define DEFAULT_FIND_PEER_DELAY GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 40)
58 /* Time to wait for all peers disconnected due to to churn to actually be removed from system */
59 #define DEFAULT_PEER_DISCONNECT_TIMEOUT GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MINUTES, 5)
61 #define DEFAULT_SECONDS_PER_PEER_START GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 45)
63 #define DEFAULT_TEST_DATA_SIZE 8
65 #define DEFAULT_BUCKET_SIZE 4
67 #define FIND_PEER_THRESHOLD 1
69 /* If more than this many peers are added, slow down sending */
70 #define MAX_FIND_PEER_CUTOFF 4000
72 /* If less than this many peers are added, speed up sending */
73 #define MIN_FIND_PEER_CUTOFF 500
75 #define DEFAULT_MAX_OUTSTANDING_PUTS 10
77 #define DEFAULT_MAX_OUTSTANDING_FIND_PEERS 196
79 #define DEFAULT_FIND_PEER_OFFSET GNUNET_TIME_relative_divide (DEFAULT_FIND_PEER_DELAY, DEFAULT_MAX_OUTSTANDING_FIND_PEERS)
81 #define DEFAULT_MAX_OUTSTANDING_GETS 10
83 #define DEFAULT_CONNECT_TIMEOUT 60
85 #define DEFAULT_TOPOLOGY_TIMEOUT GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MINUTES, 8)
87 #define DEFAULT_RECONNECT_ATTEMPTS 8
90 * Default frequency for sending malicious get messages
92 #define DEFAULT_MALICIOUS_GET_FREQUENCY GNUNET_TIME_UNIT_SECONDS
95 * Default frequency for sending malicious put messages
97 #define DEFAULT_MALICIOUS_PUT_FREQUENCY GNUNET_TIME_UNIT_SECONDS
101 struct MaliciousContext
104 * Handle to DHT service (via the API)
106 struct GNUNET_DHT_Handle *dht_handle;
109 * Handle to the peer daemon
111 struct GNUNET_TESTING_Daemon *daemon;
114 * Task for disconnecting DHT handles
116 GNUNET_SCHEDULER_TaskIdentifier disconnect_task;
119 * What type of malicious to set this peer to.
126 /* This is a linked list */
127 struct TestFindPeer *next;
129 /* Handle to the bigger context */
130 struct FindPeerContext *find_peer_context;
133 * Handle to the peer's DHT service (via the API)
135 struct GNUNET_DHT_Handle *dht_handle;
138 * Handle to the peer daemon
140 struct GNUNET_TESTING_Daemon *daemon;
143 * Task for disconnecting DHT handles
145 GNUNET_SCHEDULER_TaskIdentifier disconnect_task;
148 struct TestPutContext
150 /* This is a linked list */
151 struct TestPutContext *next;
154 * Handle to the first peers DHT service (via the API)
156 struct GNUNET_DHT_Handle *dht_handle;
159 * Handle to the PUT peer daemon
161 struct GNUNET_TESTING_Daemon *daemon;
164 * Identifier for this PUT
169 * Task for disconnecting DHT handles
171 GNUNET_SCHEDULER_TaskIdentifier disconnect_task;
174 struct TestGetContext
176 /* This is a linked list */
177 struct TestGetContext *next;
180 * Handle to the first peers DHT service (via the API)
182 struct GNUNET_DHT_Handle *dht_handle;
185 * Handle for the DHT get request
187 struct GNUNET_DHT_GetHandle *get_handle;
190 * Handle to the GET peer daemon
192 struct GNUNET_TESTING_Daemon *daemon;
195 * Identifier for this GET
200 * Task for disconnecting DHT handles (and stopping GET)
202 GNUNET_SCHEDULER_TaskIdentifier disconnect_task;
205 * Whether or not this request has been fulfilled already.
211 * Simple struct to keep track of progress, and print a
212 * nice little percentage meter for long running tasks.
222 unsigned int completed;
226 char *startup_string;
230 * Linked list of information for populating statistics
231 * before ending trial.
233 struct StatisticsIteratorContext
235 const struct GNUNET_PeerIdentity *peer;
236 unsigned int stat_routes;
237 unsigned int stat_route_forwards;
238 unsigned int stat_results;
239 unsigned int stat_results_to_client;
240 unsigned int stat_result_forwards;
241 unsigned int stat_gets;
242 unsigned int stat_puts;
243 unsigned int stat_puts_inserted;
244 unsigned int stat_find_peer;
245 unsigned int stat_find_peer_start;
246 unsigned int stat_get_start;
247 unsigned int stat_put_start;
248 unsigned int stat_find_peer_reply;
249 unsigned int stat_get_reply;
250 unsigned int stat_find_peer_answer;
251 unsigned int stat_get_response_start;
255 * Context for getting a topology, logging it, and continuing
256 * on with some next operation.
258 struct TopologyIteratorContext
260 unsigned int total_iterations;
261 unsigned int current_iteration;
262 unsigned int total_connections;
263 unsigned int total_peers;
264 struct GNUNET_CONTAINER_MultiHashMap *peers_seen;
265 struct GNUNET_PeerIdentity *peer;
266 GNUNET_SCHEDULER_Task cont;
268 struct GNUNET_TIME_Relative timeout;
274 /** Node in the heap */
275 struct GNUNET_CONTAINER_HeapNode *heap_node;
277 /** Peer the count refers to */
278 struct GNUNET_PeerIdentity peer_id;
280 /** Count of connections this peer has */
285 * Context for sending out find peer requests.
287 struct FindPeerContext
290 * How long to send find peer requests, once the settle time
291 * is over don't send any more out!
293 * TODO: Add option for settle time and find peer sending time?
295 struct GNUNET_TIME_Absolute endtime;
298 * Number of connections in the current topology
299 * (after this round of find peer requests has ended).
301 unsigned int current_peers;
304 * Number of connections in the current topology
305 * (before this round of find peer requests started).
307 unsigned int previous_peers;
310 * Number of find peer requests we have currently
313 unsigned int outstanding;
316 * Number of find peer requests to send in this round.
321 * Number of find peer requests sent last time around.
323 unsigned int last_sent;
326 * Hashmap of peers in the current topology, value
327 * is a PeerCount, with the number of connections
330 struct GNUNET_CONTAINER_MultiHashMap *peer_hash;
333 * Min heap which orders values in the peer_hash for
336 struct GNUNET_CONTAINER_Heap *peer_min_heap;
339 * Callback for counting the peers in the current topology.
341 GNUNET_TESTING_NotifyTopology count_peers_cb;
347 * Next full round (puts + gets).
352 * Next round of gets.
357 * Next round of puts.
362 * Next round of churn.
372 * Timeout to let all GET requests happen.
374 static struct GNUNET_TIME_Relative all_get_timeout;
379 static struct GNUNET_TIME_Relative get_timeout;
382 * Time to allow for GET requests to be sent to service.
384 static struct GNUNET_TIME_Relative get_delay;
387 * Time to allow for PUT requests to be sent to service.
389 static struct GNUNET_TIME_Relative put_delay;
392 * Delay between sending find peer requests (if
393 * handled by the driver, no effect if sent by service).
395 static struct GNUNET_TIME_Relative find_peer_delay;
398 * Time between find peer requests
399 * (find_peer_delay / max_outstanding_find_peer)
401 static struct GNUNET_TIME_Relative find_peer_offset;
404 * How many seconds to allow each peer to start.
406 static struct GNUNET_TIME_Relative seconds_per_peer_start;
409 * Boolean value, should the driver issue find peer requests
410 * (GNUNET_YES) or should it be left to the service (GNUNET_NO)
412 static unsigned int do_find_peer;
415 * Boolean value, should replication be done by the dht
416 * service (GNUNET_YES) or by the driver (GNUNET_NO)
418 static unsigned int in_dht_replication;
421 * Size of test data to insert/retrieve during testing.
423 static unsigned long long test_data_size = DEFAULT_TEST_DATA_SIZE;
426 * Maximum number of concurrent PUT requests.
428 static unsigned long long max_outstanding_puts = DEFAULT_MAX_OUTSTANDING_PUTS;
431 * Maximum number of concurrent GET requests.
433 static unsigned long long max_outstanding_gets = DEFAULT_MAX_OUTSTANDING_GETS;
436 * Number of nodes issuing malicious GET messages.
438 static unsigned long long malicious_getters;
441 * Maximum number of concurrent find peer messages being sent.
443 static unsigned long long max_outstanding_find_peers;
446 * Number of nodes issuing malicious PUT messages.
448 static unsigned long long malicious_putters;
451 * Time (in seconds) to delay between rounds.
453 static unsigned long long round_delay;
456 * How many malicious droppers to seed in the network.
458 static unsigned long long malicious_droppers;
461 * How often to send malicious GET messages.
463 static struct GNUNET_TIME_Relative malicious_get_frequency;
466 * How often to send malicious PUT messages.
468 static struct GNUNET_TIME_Relative malicious_put_frequency;
471 * How long to send find peer requests.
473 static unsigned long long settle_time;
476 * Handle to the dhtlog service.
478 static struct GNUNET_DHTLOG_Handle *dhtlog_handle;
481 * Replication value for GET requests.
483 static unsigned long long get_replication;
486 * Replication value for PUT requests.
488 static unsigned long long put_replication;
491 * If GNUNET_YES, insert data at the same peers every time.
492 * Otherwise, choose a new random peer to insert at each time.
494 static unsigned int replicate_same;
497 * If GNUNET_YES, issue GET requests at the same peers every time.
498 * Otherwise, choose a new random peer/data combination to search
501 static unsigned int get_from_same;
504 * Number of rounds for testing (PUTS + GETS)
506 static unsigned long long total_rounds;
509 * Number of rounds already run
511 static unsigned int rounds_finished;
514 * Number of rounds of churn to read from the file (first line, should be a single number).
516 static unsigned int churn_rounds;
519 * Current round we are in for churn, tells us how many peers to connect/disconnect.
521 static unsigned int current_churn_round;
524 * Number of times to churn per round
526 static unsigned long long churns_per_round;
529 * Array of churn values.
531 static unsigned int *churn_array;
534 * Hash map of stats contexts.
536 static struct GNUNET_CONTAINER_MultiHashMap *stats_map;
539 * LL of malicious settings.
541 struct MaliciousContext *all_malicious;
544 * List of GETS to perform
546 struct TestGetContext *all_gets;
549 * List of PUTS to perform
551 struct TestPutContext *all_puts;
554 * Directory to store temporary data in, defined in config file
556 static char *test_directory;
559 * Variable used to store the number of connections we should wait for.
561 static unsigned int expected_connections;
564 * Variable used to keep track of how many peers aren't yet started.
566 static unsigned long long peers_left;
569 * Handle to the set of all peers run for this test.
571 static struct GNUNET_TESTING_PeerGroup *pg;
575 * Global config handle.
577 static const struct GNUNET_CONFIGURATION_Handle *config;
580 * Total number of peers to run, set based on config file.
582 static unsigned long long num_peers;
585 * Total number of items to insert.
587 static unsigned long long num_puts;
590 * How many puts do we currently have in flight?
592 static unsigned long long outstanding_puts;
595 * How many puts are done?
597 static unsigned long long puts_completed;
600 * Total number of items to attempt to get.
602 static unsigned long long num_gets;
605 * How many puts do we currently have in flight?
607 static unsigned long long outstanding_gets;
610 * How many gets are done?
612 static unsigned long long gets_completed;
615 * How many gets failed?
617 static unsigned long long gets_failed;
620 * How many malicious control messages do
621 * we currently have in flight?
623 static unsigned long long outstanding_malicious;
626 * How many set malicious peers are done?
628 static unsigned long long malicious_completed;
631 * Global used to count how many connections we have currently
632 * been notified about (how many times has topology_callback been called
635 static unsigned int total_connections;
638 * Global used to count how many failed connections we have
639 * been notified about (how many times has topology_callback
640 * been called with failure?)
642 static unsigned int failed_connections;
644 /* Task handle to use to schedule shutdown if something goes wrong */
645 GNUNET_SCHEDULER_TaskIdentifier die_task;
647 static char *blacklist_transports;
649 static enum GNUNET_TESTING_Topology topology;
651 static enum GNUNET_TESTING_Topology blacklist_topology = GNUNET_TESTING_TOPOLOGY_NONE; /* Don't do any blacklisting */
653 static enum GNUNET_TESTING_Topology connect_topology = GNUNET_TESTING_TOPOLOGY_NONE; /* NONE actually means connect all allowed peers */
655 static enum GNUNET_TESTING_TopologyOption connect_topology_option = GNUNET_TESTING_TOPOLOGY_OPTION_ALL;
657 static double connect_topology_option_modifier = 0.0;
659 static struct ProgressMeter *hostkey_meter;
661 static struct ProgressMeter *peer_start_meter;
663 static struct ProgressMeter *peer_connect_meter;
665 static struct ProgressMeter *put_meter;
667 static struct ProgressMeter *get_meter;
669 static GNUNET_HashCode *known_keys;
671 /* Global return value (0 for success, anything else for failure) */
675 * Create a meter to keep track of the progress of some task.
677 * @param total the total number of items to complete
678 * @param start_string a string to prefix the meter with (if printing)
679 * @param print GNUNET_YES to print the meter, GNUNET_NO to count
682 * @return the progress meter
684 static struct ProgressMeter *
685 create_meter(unsigned int total, char * start_string, int print)
687 struct ProgressMeter *ret;
688 ret = GNUNET_malloc(sizeof(struct ProgressMeter));
691 ret->modnum = total / 4;
692 ret->dotnum = (total / 50) + 1;
693 if (start_string != NULL)
694 ret->startup_string = GNUNET_strdup(start_string);
696 ret->startup_string = GNUNET_strdup("");
702 * Update progress meter (increment by one).
704 * @param meter the meter to update and print info for
706 * @return GNUNET_YES if called the total requested,
707 * GNUNET_NO if more items expected
710 update_meter(struct ProgressMeter *meter)
712 if (meter->print == GNUNET_YES)
714 if (meter->completed % meter->modnum == 0)
716 if (meter->completed == 0)
718 fprintf(stdout, "%sProgress: [0%%", meter->startup_string);
721 fprintf(stdout, "%d%%", (int)(((float)meter->completed / meter->total) * 100));
723 else if (meter->completed % meter->dotnum == 0)
724 fprintf(stdout, ".");
726 if (meter->completed + 1 == meter->total)
727 fprintf(stdout, "%d%%]\n", 100);
732 if (meter->completed == meter->total)
738 * Reset progress meter.
740 * @param meter the meter to reset
742 * @return GNUNET_YES if meter reset,
743 * GNUNET_SYSERR on error
746 reset_meter(struct ProgressMeter *meter)
749 return GNUNET_SYSERR;
751 meter->completed = 0;
756 * Release resources for meter
758 * @param meter the meter to free
761 free_meter(struct ProgressMeter *meter)
763 GNUNET_free_non_null (meter->startup_string);
768 * Check whether peers successfully shut down.
771 shutdown_callback (void *cls,
782 * Task to release DHT handles for PUT
785 put_disconnect_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
787 struct TestPutContext *test_put = cls;
788 test_put->disconnect_task = GNUNET_SCHEDULER_NO_TASK;
789 GNUNET_DHT_disconnect(test_put->dht_handle);
790 test_put->dht_handle = NULL;
791 test_put->daemon = GNUNET_TESTING_daemon_get(pg, GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers));
795 * Function scheduled to be run on the successful completion of this
799 finish_testing (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
801 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Ending test normally!\n", (char *)cls);
802 GNUNET_assert (pg != NULL);
803 struct TestPutContext *test_put = all_puts;
804 struct TestGetContext *test_get = all_gets;
806 while (test_put != NULL)
808 if (test_put->disconnect_task != GNUNET_SCHEDULER_NO_TASK)
809 GNUNET_SCHEDULER_cancel(test_put->disconnect_task);
810 if (test_put->dht_handle != NULL)
811 GNUNET_DHT_disconnect(test_put->dht_handle);
812 test_put = test_put->next;
815 while (test_get != NULL)
817 if (test_get->disconnect_task != GNUNET_SCHEDULER_NO_TASK)
818 GNUNET_SCHEDULER_cancel(test_get->disconnect_task);
819 if (test_get->get_handle != NULL)
820 GNUNET_DHT_get_stop(test_get->get_handle);
821 if (test_get->dht_handle != NULL)
822 GNUNET_DHT_disconnect(test_get->dht_handle);
823 test_get = test_get->next;
826 GNUNET_TESTING_daemons_stop (pg, DEFAULT_TIMEOUT, &shutdown_callback, NULL);
828 if (dhtlog_handle != NULL)
830 fprintf(stderr, "Update trial endtime\n");
831 dhtlog_handle->update_trial (gets_completed);
832 GNUNET_DHTLOG_disconnect(dhtlog_handle);
833 dhtlog_handle = NULL;
836 if (hostkey_meter != NULL)
837 free_meter(hostkey_meter);
838 if (peer_start_meter != NULL)
839 free_meter(peer_start_meter);
840 if (peer_connect_meter != NULL)
841 free_meter(peer_connect_meter);
842 if (put_meter != NULL)
843 free_meter(put_meter);
844 if (get_meter != NULL)
845 free_meter(get_meter);
851 * Callback for iterating over all the peer connections of a peer group.
854 log_topology_cb (void *cls,
855 const struct GNUNET_PeerIdentity *first,
856 const struct GNUNET_PeerIdentity *second,
859 struct TopologyIteratorContext *topo_ctx = cls;
860 if ((first != NULL) && (second != NULL))
862 /* GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "According to CORE, peer %s is connected to %s\n", GNUNET_i2s(first), GNUNET_h2s(&second->hashPubKey));*/
863 if ((topo_ctx->peers_seen != NULL) && (GNUNET_NO == GNUNET_CONTAINER_multihashmap_contains(topo_ctx->peers_seen, &first->hashPubKey)))
865 GNUNET_CONTAINER_multihashmap_put(topo_ctx->peers_seen, &first->hashPubKey, NULL, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
866 topo_ctx->total_peers++;
868 topo_ctx->total_connections++;
869 if (GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno(config, "dht_testing", "mysql_logging"))
870 dhtlog_handle->insert_extended_topology(first, second);
874 GNUNET_assert(dhtlog_handle != NULL);
875 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);
876 dhtlog_handle->update_topology(topo_ctx->total_connections);
877 if (topo_ctx->cont != NULL)
878 GNUNET_SCHEDULER_add_now (topo_ctx->cont, topo_ctx->cls);
879 if (topo_ctx->peers_seen != NULL)
880 GNUNET_CONTAINER_multihashmap_destroy(topo_ctx->peers_seen);
881 GNUNET_free(topo_ctx);
886 * Iterator over hash map entries.
888 * @param cls closure - always NULL
889 * @param key current key code
890 * @param value value in the hash map, a stats context
891 * @return GNUNET_YES if we should continue to
895 static int stats_iterate (void *cls,
896 const GNUNET_HashCode * key,
899 struct StatisticsIteratorContext *stats_ctx;
903 dhtlog_handle->insert_stat(stats_ctx->peer, stats_ctx->stat_routes, stats_ctx->stat_route_forwards, stats_ctx->stat_results,
904 stats_ctx->stat_results_to_client, stats_ctx->stat_result_forwards, stats_ctx->stat_gets,
905 stats_ctx->stat_puts, stats_ctx->stat_puts_inserted, stats_ctx->stat_find_peer,
906 stats_ctx->stat_find_peer_start, stats_ctx->stat_get_start, stats_ctx->stat_put_start,
907 stats_ctx->stat_find_peer_reply, stats_ctx->stat_get_reply, stats_ctx->stat_find_peer_answer,
908 stats_ctx->stat_get_response_start);
909 GNUNET_free(stats_ctx);
914 stats_finished (void *cls, int result)
916 fprintf(stderr, "Finished getting all peers statistics, iterating!\n");
917 GNUNET_CONTAINER_multihashmap_iterate(stats_map, &stats_iterate, NULL);
918 GNUNET_CONTAINER_multihashmap_destroy(stats_map);
919 GNUNET_SCHEDULER_add_now (&finish_testing, NULL);
923 * Callback function to process statistic values.
926 * @param peer the peer the statistics belong to
927 * @param subsystem name of subsystem that created the statistic
928 * @param name the name of the datum
929 * @param value the current value
930 * @param is_persistent GNUNET_YES if the value is persistent, GNUNET_NO if not
931 * @return GNUNET_OK to continue, GNUNET_SYSERR to abort iteration
933 static int stats_handle (void *cls,
934 const struct GNUNET_PeerIdentity *peer,
935 const char *subsystem,
940 struct StatisticsIteratorContext *stats_ctx;
942 if (dhtlog_handle != NULL)
943 dhtlog_handle->add_generic_stat(peer, name, subsystem, value);
944 if (GNUNET_CONTAINER_multihashmap_contains(stats_map, &peer->hashPubKey))
946 stats_ctx = GNUNET_CONTAINER_multihashmap_get(stats_map, &peer->hashPubKey);
950 stats_ctx = GNUNET_malloc(sizeof(struct StatisticsIteratorContext));
951 stats_ctx->peer = peer;
952 GNUNET_CONTAINER_multihashmap_put(stats_map, &peer->hashPubKey, stats_ctx, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
954 GNUNET_assert(stats_ctx != NULL);
956 if (strcmp(name, STAT_ROUTES) == 0)
957 stats_ctx->stat_routes = value;
958 else if (strcmp(name, STAT_ROUTE_FORWARDS) == 0)
959 stats_ctx->stat_route_forwards = value;
960 else if (strcmp(name, STAT_RESULTS) == 0)
961 stats_ctx->stat_results = value;
962 else if (strcmp(name, STAT_RESULTS_TO_CLIENT) == 0)
963 stats_ctx->stat_results_to_client = value;
964 else if (strcmp(name, STAT_RESULT_FORWARDS) == 0)
965 stats_ctx->stat_result_forwards = value;
966 else if (strcmp(name, STAT_GETS) == 0)
967 stats_ctx->stat_gets = value;
968 else if (strcmp(name, STAT_PUTS) == 0)
969 stats_ctx->stat_puts = value;
970 else if (strcmp(name, STAT_PUTS_INSERTED) == 0)
971 stats_ctx->stat_puts_inserted = value;
972 else if (strcmp(name, STAT_FIND_PEER) == 0)
973 stats_ctx->stat_find_peer = value;
974 else if (strcmp(name, STAT_FIND_PEER_START) == 0)
975 stats_ctx->stat_find_peer_start = value;
976 else if (strcmp(name, STAT_GET_START) == 0)
977 stats_ctx->stat_get_start = value;
978 else if (strcmp(name, STAT_PUT_START) == 0)
979 stats_ctx->stat_put_start = value;
980 else if (strcmp(name, STAT_FIND_PEER_REPLY) == 0)
981 stats_ctx->stat_find_peer_reply = value;
982 else if (strcmp(name, STAT_GET_REPLY) == 0)
983 stats_ctx->stat_get_reply = value;
984 else if (strcmp(name, STAT_FIND_PEER_ANSWER) == 0)
985 stats_ctx->stat_find_peer_answer = value;
986 else if (strcmp(name, STAT_GET_RESPONSE_START) == 0)
987 stats_ctx->stat_get_response_start = value;
993 * Connect to statistics service for each peer and get the appropriate
994 * dht statistics for safe keeping.
997 log_dht_statistics (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
999 stats_map = GNUNET_CONTAINER_multihashmap_create(num_peers);
1000 fprintf(stderr, "Starting statistics logging\n");
1001 GNUNET_TESTING_get_statistics(pg, &stats_finished, &stats_handle, NULL);
1006 * Connect to all peers in the peer group and iterate over their
1010 capture_current_topology (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1012 struct TopologyIteratorContext *topo_ctx = cls;
1013 dhtlog_handle->insert_topology(0);
1014 GNUNET_TESTING_get_topology (pg, &log_topology_cb, topo_ctx);
1019 * Check if the get_handle is being used, if so stop the request. Either
1020 * way, schedule the end_badly_cont function which actually shuts down the
1024 end_badly (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1026 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Failing test with error: `%s'!\n", (char *)cls);
1028 struct TestPutContext *test_put = all_puts;
1029 struct TestGetContext *test_get = all_gets;
1031 while (test_put != NULL)
1033 if (test_put->disconnect_task != GNUNET_SCHEDULER_NO_TASK)
1034 GNUNET_SCHEDULER_cancel(test_put->disconnect_task);
1035 if (test_put->dht_handle != NULL)
1036 GNUNET_DHT_disconnect(test_put->dht_handle);
1037 test_put = test_put->next;
1040 while (test_get != NULL)
1042 if (test_get->disconnect_task != GNUNET_SCHEDULER_NO_TASK)
1043 GNUNET_SCHEDULER_cancel(test_get->disconnect_task);
1044 if (test_get->get_handle != NULL)
1045 GNUNET_DHT_get_stop(test_get->get_handle);
1046 if (test_get->dht_handle != NULL)
1047 GNUNET_DHT_disconnect(test_get->dht_handle);
1048 test_get = test_get->next;
1051 GNUNET_TESTING_daemons_stop (pg, DEFAULT_TIMEOUT, &shutdown_callback, NULL);
1053 if (dhtlog_handle != NULL)
1055 fprintf(stderr, "Update trial endtime\n");
1056 dhtlog_handle->update_trial (gets_completed);
1057 GNUNET_DHTLOG_disconnect(dhtlog_handle);
1058 dhtlog_handle = NULL;
1061 if (hostkey_meter != NULL)
1062 free_meter(hostkey_meter);
1063 if (peer_start_meter != NULL)
1064 free_meter(peer_start_meter);
1065 if (peer_connect_meter != NULL)
1066 free_meter(peer_connect_meter);
1067 if (put_meter != NULL)
1068 free_meter(put_meter);
1069 if (get_meter != NULL)
1070 free_meter(get_meter);
1076 * Forward declaration.
1079 do_put (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc);
1082 * Forward declaration.
1085 do_get (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc);
1088 * Iterator over hash map entries.
1090 * @param cls closure
1091 * @param key current key code
1092 * @param value value in the hash map
1093 * @return GNUNET_YES if we should continue to
1097 static int remove_peer_count (void *cls,
1098 const GNUNET_HashCode * key,
1101 struct FindPeerContext *find_peer_ctx = cls;
1102 struct PeerCount *peer_count = value;
1103 GNUNET_CONTAINER_heap_remove_node(find_peer_ctx->peer_min_heap, peer_count->heap_node);
1104 GNUNET_free(peer_count);
1110 * Connect to all peers in the peer group and iterate over their
1114 count_new_peers (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1116 struct FindPeerContext *find_peer_context = cls;
1117 find_peer_context->previous_peers = find_peer_context->current_peers;
1118 find_peer_context->current_peers = 0;
1119 GNUNET_TESTING_get_topology (pg, find_peer_context->count_peers_cb, find_peer_context);
1123 decrement_find_peers (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1125 struct TestFindPeer *test_find_peer = cls;
1126 GNUNET_assert(test_find_peer->find_peer_context->outstanding > 0);
1127 test_find_peer->find_peer_context->outstanding--;
1128 test_find_peer->find_peer_context->total--;
1129 if ((0 == test_find_peer->find_peer_context->total) &&
1130 (GNUNET_TIME_absolute_get_remaining(test_find_peer->find_peer_context->endtime).rel_value > 60))
1132 GNUNET_SCHEDULER_add_now(&count_new_peers, test_find_peer->find_peer_context);
1134 GNUNET_free(test_find_peer);
1138 * A find peer request has been sent to the server, now we will schedule a task
1139 * to wait the appropriate time to allow the request to go out and back.
1141 * @param cls closure - a TestFindPeer struct
1142 * @param tc context the task is being called with
1145 handle_find_peer_sent (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1147 struct TestFindPeer *test_find_peer = cls;
1149 GNUNET_DHT_disconnect(test_find_peer->dht_handle);
1150 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_divide(find_peer_delay, 2), &decrement_find_peers, test_find_peer);
1155 send_find_peer_request (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1157 struct TestFindPeer *test_find_peer = cls;
1159 if (test_find_peer->find_peer_context->outstanding > max_outstanding_find_peers)
1161 GNUNET_SCHEDULER_add_delayed(find_peer_offset, &send_find_peer_request, test_find_peer);
1165 test_find_peer->find_peer_context->outstanding++;
1166 if (GNUNET_TIME_absolute_get_remaining(test_find_peer->find_peer_context->endtime).rel_value == 0)
1168 GNUNET_SCHEDULER_add_now(&decrement_find_peers, test_find_peer);
1172 test_find_peer->dht_handle = GNUNET_DHT_connect(test_find_peer->daemon->cfg, 1);
1173 GNUNET_assert(test_find_peer->dht_handle != NULL);
1174 GNUNET_DHT_find_peers (test_find_peer->dht_handle,
1175 &handle_find_peer_sent, test_find_peer);
1180 * Add a connection to the find_peer_context given. This may
1181 * be complete overkill, but allows us to choose the peers with
1182 * the least connections to initiate find peer requests from.
1184 static void add_new_connection(struct FindPeerContext *find_peer_context,
1185 const struct GNUNET_PeerIdentity *first,
1186 const struct GNUNET_PeerIdentity *second)
1188 struct PeerCount *first_count;
1189 struct PeerCount *second_count;
1191 if (GNUNET_CONTAINER_multihashmap_contains(find_peer_context->peer_hash, &first->hashPubKey))
1193 first_count = GNUNET_CONTAINER_multihashmap_get(find_peer_context->peer_hash, &first->hashPubKey);
1194 GNUNET_assert(first_count != NULL);
1195 first_count->count++;
1196 GNUNET_CONTAINER_heap_update_cost(find_peer_context->peer_min_heap, first_count->heap_node, first_count->count);
1200 first_count = GNUNET_malloc(sizeof(struct PeerCount));
1201 first_count->count = 1;
1202 memcpy(&first_count->peer_id, first, sizeof(struct GNUNET_PeerIdentity));
1203 first_count->heap_node = GNUNET_CONTAINER_heap_insert(find_peer_context->peer_min_heap, first_count, first_count->count);
1204 GNUNET_CONTAINER_multihashmap_put(find_peer_context->peer_hash, &first->hashPubKey, first_count, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
1207 if (GNUNET_CONTAINER_multihashmap_contains(find_peer_context->peer_hash, &second->hashPubKey))
1209 second_count = GNUNET_CONTAINER_multihashmap_get(find_peer_context->peer_hash, &second->hashPubKey);
1210 GNUNET_assert(second_count != NULL);
1211 second_count->count++;
1212 GNUNET_CONTAINER_heap_update_cost(find_peer_context->peer_min_heap, second_count->heap_node, second_count->count);
1216 second_count = GNUNET_malloc(sizeof(struct PeerCount));
1217 second_count->count = 1;
1218 memcpy(&second_count->peer_id, second, sizeof(struct GNUNET_PeerIdentity));
1219 second_count->heap_node = GNUNET_CONTAINER_heap_insert(find_peer_context->peer_min_heap, second_count, second_count->count);
1220 GNUNET_CONTAINER_multihashmap_put(find_peer_context->peer_hash, &second->hashPubKey, second_count, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
1226 * Iterate over min heap of connections per peer. For any
1227 * peer that has 0 connections, attempt to connect them to
1230 * @param cls closure a struct FindPeerContext
1231 * @param node internal node of the heap
1232 * @param element value stored, a struct PeerCount
1233 * @param cost cost associated with the node
1234 * @return GNUNET_YES if we should continue to iterate,
1237 static int iterate_min_heap_peers (void *cls,
1238 struct GNUNET_CONTAINER_HeapNode *node,
1240 GNUNET_CONTAINER_HeapCostType cost)
1242 struct FindPeerContext *find_peer_context = cls;
1243 struct PeerCount *peer_count = element;
1244 struct GNUNET_TESTING_Daemon *d1;
1245 struct GNUNET_TESTING_Daemon *d2;
1246 struct GNUNET_TIME_Relative timeout;
1249 d1 = GNUNET_TESTING_daemon_get_by_id (pg, &peer_count->peer_id);
1250 GNUNET_assert(d1 != NULL);
1252 while ((d2 == d1) || (GNUNET_YES != GNUNET_TESTING_daemon_running(d2)))
1254 d2 = GNUNET_TESTING_daemon_get(pg, GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers));
1255 GNUNET_assert(d2 != NULL);
1258 /** Just try to connect the peers, don't worry about callbacks, etc. **/
1259 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);
1260 timeout = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, DEFAULT_CONNECT_TIMEOUT);
1261 if (GNUNET_TIME_relative_to_absolute(timeout).abs_value > find_peer_context->endtime.abs_value)
1263 timeout = GNUNET_TIME_absolute_get_remaining(find_peer_context->endtime);
1265 GNUNET_TESTING_daemons_connect(d1, d2, timeout, DEFAULT_RECONNECT_ATTEMPTS, NULL, NULL);
1267 if (GNUNET_TIME_absolute_get_remaining(find_peer_context->endtime).rel_value > 0)
1274 * Forward declaration.
1277 schedule_churn_find_peer_requests (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc);
1280 * Callback for iterating over all the peer connections of a peer group.
1281 * Used after we have churned on some peers to find which ones have zero
1282 * connections so we can make them issue find peer requests.
1285 count_peers_churn_cb (void *cls,
1286 const struct GNUNET_PeerIdentity *first,
1287 const struct GNUNET_PeerIdentity *second,
1290 struct FindPeerContext *find_peer_context = cls;
1291 struct TopologyIteratorContext *topo_ctx;
1292 struct PeerCount *peer_count;
1294 if ((first != NULL) && (second != NULL))
1296 add_new_connection(find_peer_context, first, second);
1297 find_peer_context->current_peers++;
1301 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Peer count finished (%u connections)\n",
1302 find_peer_context->current_peers);
1303 peer_count = GNUNET_CONTAINER_heap_peek(find_peer_context->peer_min_heap);
1304 GNUNET_assert(peer_count != NULL);
1305 /* 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. */
1306 /* NO they won't, because we have disabled peerinfo writing to disk (remember?) so we WILL have to give them new connections */
1307 /* Best course of action: have DHT automatically try to add peers from peerinfo on startup. This way IF peerinfo writes to file
1308 * then some peers will end up connected.
1310 * Also, find any peers that have zero connections here and set up a task to choose at random another peer in the network to
1311 * 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
1312 * until they get a peer.
1314 /* However, they won't automatically be connected to any of their previous peers... How can we handle that? */
1315 /* So now we have choices: do we want them to come back with all their connections? Probably not, but it solves this mess. */
1317 /* Second problem, which is still a problem, is that a FIND_PEER request won't work when a peer has no connections */
1320 * Okay, so here's how this *should* work now.
1322 * 1. We check the min heap for any peers that have 0 connections.
1323 * a. If any are found, we iterate over the heap and just randomly
1324 * choose another peer and ask testing to please connect the two.
1325 * This takes care of the case that a peer just randomly joins the
1326 * network. However, if there are strict topology restrictions
1327 * (imagine a ring) choosing randomly most likely won't help.
1328 * We make sure the connection attempt doesn't take longer than
1329 * the total timeout, but don't care too much about the result.
1330 * b. After that, we still schedule the find peer requests (concurrently
1331 * with the connect attempts most likely). This handles the case
1332 * that the DHT iterates over peerinfo and just needs to try to send
1333 * a message to get connected. This should handle the case that the
1334 * topology is very strict.
1336 * 2. If all peers have > 0 connections, we still send find peer requests
1337 * as long as possible (until timeout is reached) to help out those
1338 * peers that were newly churned and need more connections. This is because
1339 * once all new peers have established a single connection, they won't be
1342 * 3. Once we reach the timeout, we can do no more. We must schedule the
1343 * next iteration of get requests regardless of connections that peers
1344 * may or may not have.
1346 * Caveat: it would be nice to get peers to take data offline with them and
1347 * come back with it (or not) based on the testing framework. The
1348 * same goes for remembering previous connections, but putting either
1349 * into the general testing churn options seems like overkill because
1350 * these are very specialized cases.
1352 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);
1353 if ((peer_count->count == 0) && (GNUNET_TIME_absolute_get_remaining(find_peer_context->endtime).rel_value > 0))
1355 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Found peer with no connections, will choose some peer(s) at random to connect to!\n");
1356 GNUNET_CONTAINER_heap_iterate (find_peer_context->peer_min_heap, &iterate_min_heap_peers, find_peer_context);
1357 GNUNET_SCHEDULER_add_now(&schedule_churn_find_peer_requests, find_peer_context);
1359 else if ((GNUNET_TIME_absolute_get_remaining(find_peer_context->endtime).rel_value > 0) && (find_peer_context->last_sent != 0))
1361 GNUNET_SCHEDULER_add_now(&schedule_churn_find_peer_requests, find_peer_context);
1365 GNUNET_CONTAINER_multihashmap_iterate(find_peer_context->peer_hash, &remove_peer_count, find_peer_context);
1366 GNUNET_CONTAINER_multihashmap_destroy(find_peer_context->peer_hash);
1367 GNUNET_CONTAINER_heap_destroy(find_peer_context->peer_min_heap);
1368 GNUNET_free(find_peer_context);
1369 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Churn round %u of %llu finished, scheduling next GET round.\n", current_churn_round, churn_rounds);
1370 if (dhtlog_handle != NULL)
1372 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
1373 topo_ctx->cont = &do_get;
1374 topo_ctx->cls = all_gets;
1375 topo_ctx->timeout = DEFAULT_GET_TIMEOUT;
1376 topo_ctx->peers_seen = GNUNET_CONTAINER_multihashmap_create(num_peers);
1377 die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_add(GNUNET_TIME_relative_add(DEFAULT_GET_TIMEOUT, all_get_timeout), DEFAULT_TOPOLOGY_CAPTURE_TIMEOUT),
1378 &end_badly, "from do gets (count_peers_churn_cb)");
1379 GNUNET_SCHEDULER_add_now(&capture_current_topology, topo_ctx);
1383 die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_add(GNUNET_TIME_relative_add(DEFAULT_GET_TIMEOUT, all_get_timeout), DEFAULT_TOPOLOGY_CAPTURE_TIMEOUT),
1384 &end_badly, "from do gets (count_peers_churn_cb)");
1385 GNUNET_SCHEDULER_add_now(&do_get, all_gets);
1392 * Set up a single find peer request for each peer in the topology. Do this
1393 * until the settle time is over, limited by the number of outstanding requests
1394 * and the time allowed for each one!
1397 schedule_churn_find_peer_requests (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1399 struct FindPeerContext *find_peer_ctx = cls;
1400 struct TestFindPeer *test_find_peer;
1401 struct PeerCount *peer_count;
1404 if (find_peer_ctx->previous_peers == 0) /* First time, go slowly */
1405 find_peer_ctx->total = 1;
1406 else if (find_peer_ctx->current_peers - find_peer_ctx->previous_peers < MIN_FIND_PEER_CUTOFF)
1407 find_peer_ctx->total = find_peer_ctx->total / 2;
1408 else if (find_peer_ctx->current_peers - find_peer_ctx->previous_peers > MAX_FIND_PEER_CUTOFF) /* Found LOTS of peers, still go slowly */
1409 find_peer_ctx->total = find_peer_ctx->last_sent - (find_peer_ctx->last_sent / 4);
1411 find_peer_ctx->total = find_peer_ctx->last_sent * 4;
1413 if (find_peer_ctx->total > max_outstanding_find_peers)
1414 find_peer_ctx->total = max_outstanding_find_peers;
1416 find_peer_ctx->last_sent = find_peer_ctx->total;
1417 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Sending %u find peer messages (after churn)\n", find_peer_ctx->total);
1419 if (find_peer_ctx->total > 0)
1420 find_peer_offset = GNUNET_TIME_relative_divide(find_peer_delay, find_peer_ctx->total);
1423 find_peer_ctx->previous_peers = find_peer_ctx->current_peers;
1424 find_peer_ctx->current_peers = 0;
1425 GNUNET_TESTING_get_topology (pg, &count_peers_churn_cb, find_peer_ctx);
1429 for (i = 0; i < find_peer_ctx->total; i++)
1431 test_find_peer = GNUNET_malloc(sizeof(struct TestFindPeer));
1432 /* If we have sent requests, choose peers with a low number of connections to send requests from */
1433 peer_count = GNUNET_CONTAINER_heap_remove_root(find_peer_ctx->peer_min_heap);
1434 GNUNET_assert(peer_count != NULL);
1435 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Sending find peer request from peer with %u connections\n", peer_count->count);
1436 GNUNET_CONTAINER_multihashmap_remove(find_peer_ctx->peer_hash, &peer_count->peer_id.hashPubKey, peer_count);
1437 test_find_peer->daemon = GNUNET_TESTING_daemon_get_by_id(pg, &peer_count->peer_id);
1438 GNUNET_assert(test_find_peer->daemon != NULL);
1439 test_find_peer->find_peer_context = find_peer_ctx;
1440 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_multiply(find_peer_offset, i), &send_find_peer_request, test_find_peer);
1443 if ((find_peer_ctx->peer_hash == NULL) && (find_peer_ctx->peer_min_heap == NULL))
1445 find_peer_ctx->peer_hash = GNUNET_CONTAINER_multihashmap_create(num_peers);
1446 find_peer_ctx->peer_min_heap = GNUNET_CONTAINER_heap_create(GNUNET_CONTAINER_HEAP_ORDER_MIN);
1450 GNUNET_CONTAINER_multihashmap_iterate(find_peer_ctx->peer_hash, &remove_peer_count, find_peer_ctx);
1451 GNUNET_CONTAINER_multihashmap_destroy(find_peer_ctx->peer_hash);
1452 find_peer_ctx->peer_hash = GNUNET_CONTAINER_multihashmap_create(num_peers);
1455 GNUNET_assert(0 == GNUNET_CONTAINER_multihashmap_size(find_peer_ctx->peer_hash));
1456 GNUNET_assert(0 == GNUNET_CONTAINER_heap_get_size(find_peer_ctx->peer_min_heap));
1459 static void schedule_churn_get_topology (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1461 struct FindPeerContext *find_peer_context = cls;
1462 GNUNET_TESTING_get_topology (pg, &count_peers_churn_cb, find_peer_context);
1466 * Called when churning of the topology has finished.
1468 * @param cls closure unused
1469 * @param emsg NULL on success, or a printable error on failure
1471 static void churn_complete (void *cls, const char *emsg)
1473 struct FindPeerContext *find_peer_context = cls;
1474 struct PeerCount *peer_count;
1476 struct GNUNET_TESTING_Daemon *temp_daemon;
1477 struct TopologyIteratorContext *topo_ctx;
1478 struct GNUNET_TIME_Relative calc_timeout;
1483 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Ending test, churning of peers failed with error `%s'", emsg);
1484 GNUNET_SCHEDULER_add_now(&end_badly, (void *)emsg);
1489 * If we switched any peers on, we have to somehow force connect the new peer to
1490 * SOME bootstrap peer in the network. First schedule a task to find all peers
1491 * with no connections, then choose a random peer for each and connect them.
1493 if (find_peer_context != NULL)
1495 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "We have churned on some peers, so we must schedule find peer requests for them!\n");
1497 for (i = 0; i < num_peers; i ++)
1499 temp_daemon = GNUNET_TESTING_daemon_get(pg, i);
1500 if (GNUNET_YES == GNUNET_TESTING_daemon_running(temp_daemon))
1502 peer_count = GNUNET_malloc (sizeof(struct PeerCount));
1503 memcpy(&peer_count->peer_id, &temp_daemon->id, sizeof(struct GNUNET_PeerIdentity));
1504 GNUNET_assert(peer_count->count == 0);
1505 peer_count->heap_node = GNUNET_CONTAINER_heap_insert(find_peer_context->peer_min_heap, peer_count, peer_count->count);
1506 GNUNET_CONTAINER_multihashmap_put(find_peer_context->peer_hash, &temp_daemon->id.hashPubKey, peer_count, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
1510 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));
1511 GNUNET_SCHEDULER_add_delayed(DEFAULT_PEER_DISCONNECT_TIMEOUT, &schedule_churn_get_topology, find_peer_context);
1512 //GNUNET_TESTING_get_topology (pg, &count_peers_churn_cb, find_peer_context);
1516 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");
1517 if (dhtlog_handle != NULL)
1519 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
1520 topo_ctx->cont = &do_get;
1521 topo_ctx->cls = all_gets;
1522 topo_ctx->timeout = DEFAULT_GET_TIMEOUT;
1523 topo_ctx->peers_seen = GNUNET_CONTAINER_multihashmap_create(num_peers);
1524 calc_timeout = GNUNET_TIME_relative_add(DEFAULT_GET_TIMEOUT, all_get_timeout);
1525 calc_timeout = GNUNET_TIME_relative_add(calc_timeout, DEFAULT_TOPOLOGY_CAPTURE_TIMEOUT);
1526 calc_timeout = GNUNET_TIME_relative_add(calc_timeout, DEFAULT_PEER_DISCONNECT_TIMEOUT);
1527 die_task = GNUNET_SCHEDULER_add_delayed (calc_timeout,
1528 &end_badly, "from do gets (churn_complete)");
1529 GNUNET_SCHEDULER_add_delayed(DEFAULT_PEER_DISCONNECT_TIMEOUT, &capture_current_topology, topo_ctx);
1533 calc_timeout = GNUNET_TIME_relative_add(DEFAULT_GET_TIMEOUT, all_get_timeout);
1534 calc_timeout = GNUNET_TIME_relative_add(calc_timeout, DEFAULT_PEER_DISCONNECT_TIMEOUT);
1535 die_task = GNUNET_SCHEDULER_add_delayed (calc_timeout,
1536 &end_badly, "from do gets (churn_complete)");
1537 if (dhtlog_handle != NULL)
1538 dhtlog_handle->insert_round(DHT_ROUND_GET, rounds_finished);
1539 GNUNET_SCHEDULER_add_delayed(DEFAULT_PEER_DISCONNECT_TIMEOUT, &do_get, all_gets);
1545 * Decide how many peers to turn on or off in this round, make sure the
1546 * numbers actually make sense, then do so. This function sets in motion
1547 * churn, find peer requests for newly joined peers, and issuing get
1548 * requests once the new peers have done so.
1550 * @param cls closure (unused)
1551 * @param cls task context (unused)
1554 churn_peers (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1556 unsigned int count_running;
1557 unsigned int churn_up;
1558 unsigned int churn_down;
1559 struct GNUNET_TIME_Relative timeout;
1560 struct FindPeerContext *find_peer_context;
1562 churn_up = churn_down = 0;
1563 count_running = GNUNET_TESTING_daemons_running(pg);
1564 if (count_running > churn_array[current_churn_round])
1565 churn_down = count_running - churn_array[current_churn_round];
1566 else if (count_running < churn_array[current_churn_round])
1567 churn_up = churn_array[current_churn_round] - count_running;
1569 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Not churning any peers, topology unchanged.\n");
1571 if (churn_up > num_peers - count_running)
1573 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Churn file specified %u peers (up); only have %u!", churn_array[current_churn_round], num_peers);
1574 churn_up = num_peers - count_running;
1576 else if (churn_down > count_running)
1578 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Churn file specified %u peers (down); only have %u!", churn_array[current_churn_round], count_running);
1579 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "This will leave NO peers running (mistake in churn configuration?)!");
1580 churn_down = count_running;
1582 //timeout = GNUNET_TIME_relative_multiply(seconds_per_peer_start, churn_up > 0 ? churn_up : churn_down);
1583 //timeout = GNUNET_TIME_relative_multiply (seconds_per_peer_start, churn_up > 0 ? churn_up : churn_down);
1584 timeout = GNUNET_TIME_relative_multiply(DEFAULT_TIMEOUT, 2); /* FIXME: Lack of intelligent choice here */
1585 find_peer_context = NULL;
1586 if (churn_up > 0) /* Only need to do find peer requests if we turned new peers on */
1588 find_peer_context = GNUNET_malloc(sizeof(struct FindPeerContext));
1589 find_peer_context->count_peers_cb = &count_peers_churn_cb;
1590 find_peer_context->previous_peers = 0;
1591 find_peer_context->current_peers = 0;
1592 find_peer_context->endtime = GNUNET_TIME_relative_to_absolute(timeout);
1593 find_peer_context->peer_hash = GNUNET_CONTAINER_multihashmap_create(num_peers);
1594 find_peer_context->peer_min_heap = GNUNET_CONTAINER_heap_create(GNUNET_CONTAINER_HEAP_ORDER_MIN);
1596 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "churn_peers: want %u total, %u running, starting %u, stopping %u\n",
1597 churn_array[current_churn_round], count_running, churn_up, churn_down);
1598 GNUNET_TESTING_daemons_churn (pg, churn_down, churn_up, timeout, &churn_complete, find_peer_context);
1599 current_churn_round++;
1603 * Task to release DHT handle associated with GET request.
1606 get_stop_finished (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1608 struct TestGetContext *test_get = cls;
1609 struct TopologyIteratorContext *topo_ctx;
1611 /* The dht_handle may be null if this get was scheduled from a down peer */
1612 if (test_get->dht_handle != NULL)
1614 GNUNET_DHT_disconnect(test_get->dht_handle);
1615 outstanding_gets--; /* GET is really finished */
1616 test_get->dht_handle = NULL;
1619 /* Reset the uid (which item to search for) and the daemon (which peer to search from) for later get request iterations */
1620 if (get_from_same == GNUNET_NO)
1622 test_get->uid = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_puts);
1623 test_get->daemon = GNUNET_TESTING_daemon_get(pg, GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers));
1627 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "%d gets succeeded, %d gets failed!\n", gets_completed, gets_failed);
1629 update_meter(get_meter);
1630 if ((gets_completed + gets_failed == num_gets) && (outstanding_gets == 0))
1632 fprintf(stderr, "Canceling die task (get_stop_finished) %llu gets completed, %llu gets failed\n", gets_completed, gets_failed);
1633 GNUNET_SCHEDULER_cancel(die_task);
1634 reset_meter(put_meter);
1635 reset_meter(get_meter);
1638 * 1) Testing is completely finished, call the topology iteration dealy and die
1639 * 2) Testing is not finished, churn the network and do gets again (current_churn_round < churn_rounds)
1640 * 3) Testing is not finished, reschedule all the PUTS *and* GETS again (num_rounds > 1)
1642 if (rounds_finished == total_rounds - 1) /* Everything is finished, end testing */
1644 if (dhtlog_handle != NULL)
1646 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
1647 topo_ctx->cont = &log_dht_statistics;
1648 topo_ctx->peers_seen = GNUNET_CONTAINER_multihashmap_create(num_peers);
1649 GNUNET_SCHEDULER_add_now(&capture_current_topology, topo_ctx);
1652 GNUNET_SCHEDULER_add_now (&finish_testing, NULL);
1654 else if (current_churn_round < churns_per_round * (rounds_finished + 1)) /* Do next round of churn */
1656 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);
1660 if (dhtlog_handle != NULL)
1661 dhtlog_handle->insert_round(DHT_ROUND_CHURN, rounds_finished);
1663 GNUNET_SCHEDULER_add_now(&churn_peers, NULL);
1665 else if (rounds_finished < total_rounds - 1) /* Start a new complete round */
1670 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Round %u of %llu finished, scheduling next round.\n", rounds_finished, total_rounds);
1672 /** We reset the peer daemon for puts and gets on each disconnect, so all we need to do is start another round! */
1673 if (GNUNET_YES == in_dht_replication) /* Replication done in DHT, don't redo puts! */
1675 if (dhtlog_handle != NULL)
1676 dhtlog_handle->insert_round(DHT_ROUND_GET, rounds_finished);
1678 die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_add(GNUNET_TIME_relative_add(GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, round_delay), all_get_timeout), DEFAULT_TOPOLOGY_CAPTURE_TIMEOUT),
1679 &end_badly, "from do gets (next round)");
1680 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, round_delay), &do_get, all_gets);
1684 if (dhtlog_handle != NULL)
1685 dhtlog_handle->insert_round(DHT_ROUND_NORMAL, rounds_finished);
1686 die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_add(GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, round_delay), GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, num_puts * 2)),
1687 &end_badly, "from do puts");
1688 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, round_delay), &do_put, all_puts);
1695 * Task to release get handle.
1698 get_stop_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1700 struct TestGetContext *test_get = cls;
1702 if (tc->reason == GNUNET_SCHEDULER_REASON_TIMEOUT)
1704 GNUNET_assert(test_get->get_handle != NULL);
1705 GNUNET_DHT_get_stop(test_get->get_handle);
1706 test_get->get_handle = NULL;
1707 test_get->disconnect_task = GNUNET_SCHEDULER_NO_TASK;
1708 GNUNET_SCHEDULER_add_now (&get_stop_finished, test_get);
1712 * Iterator called if the GET request initiated returns a response.
1714 * @param cls closure
1715 * @param exp when will this value expire
1716 * @param key key of the result
1717 * @param get_path NULL-terminated array of pointers
1718 * to the peers on reverse GET path (or NULL if not recorded)
1719 * @param put_path NULL-terminated array of pointers
1720 * to the peers on the PUT path (or NULL if not recorded)
1721 * @param type type of the result
1722 * @param size number of bytes in data
1723 * @param data pointer to the result data
1726 get_result_iterator (void *cls,
1727 struct GNUNET_TIME_Absolute exp,
1728 const GNUNET_HashCode * key,
1729 const struct GNUNET_PeerIdentity * const *get_path,
1730 const struct GNUNET_PeerIdentity * const *put_path,
1731 enum GNUNET_BLOCK_Type type,
1735 struct TestGetContext *test_get = cls;
1737 if (test_get->succeeded == GNUNET_YES)
1738 return; /* Get has already been successful, probably ending now */
1740 if (0 != memcmp(&known_keys[test_get->uid], key, sizeof (GNUNET_HashCode))) /* || (0 != memcmp(original_data, data, sizeof(original_data))))*/
1743 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Key or data is not the same as was inserted!\n");
1748 test_get->succeeded = GNUNET_YES;
1751 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Received correct GET response!\n");
1753 GNUNET_SCHEDULER_cancel(test_get->disconnect_task);
1754 GNUNET_SCHEDULER_add_continuation(&get_stop_task, test_get, GNUNET_SCHEDULER_REASON_PREREQ_DONE);
1760 * Set up some data, and call API PUT function
1763 do_get (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1765 struct TestGetContext *test_get = cls;
1769 GNUNET_SCHEDULER_cancel(die_task);
1770 GNUNET_SCHEDULER_add_now(&finish_testing, NULL);
1773 if (test_get == NULL)
1774 return; /* End of the list */
1776 /* Set this here in case we are re-running gets */
1777 test_get->succeeded = GNUNET_NO;
1779 if (GNUNET_YES != GNUNET_TESTING_daemon_running(test_get->daemon)) /* If the peer has been churned off, don't try issuing request from it! */
1781 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Peer we should issue get request from is down, skipping.\n");
1783 GNUNET_SCHEDULER_add_now (&get_stop_finished, test_get);
1784 GNUNET_SCHEDULER_add_now (&do_get, test_get->next);
1788 /* Check if more gets are outstanding than should be */
1789 if (outstanding_gets > max_outstanding_gets)
1791 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MILLISECONDS, 200), &do_get, test_get);
1795 /* Connect to the first peer's DHT */
1796 test_get->dht_handle = GNUNET_DHT_connect(test_get->daemon->cfg, 10);
1797 GNUNET_assert(test_get->dht_handle != NULL);
1800 /* Insert the data at the first peer */
1801 test_get->get_handle = GNUNET_DHT_get_start(test_get->dht_handle,
1803 GNUNET_BLOCK_TYPE_TEST,
1804 &known_keys[test_get->uid],
1809 &get_result_iterator,
1813 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Starting get for uid %u from peer %s\n",
1815 test_get->daemon->shortname);
1817 test_get->disconnect_task = GNUNET_SCHEDULER_add_delayed(get_timeout, &get_stop_task, test_get);
1819 /* Schedule the next request in the linked list of get requests */
1820 GNUNET_SCHEDULER_add_now (&do_get, test_get->next);
1824 * Called when the PUT request has been transmitted to the DHT service.
1825 * Schedule the GET request for some time in the future.
1828 put_finished (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1830 struct TestPutContext *test_put = cls;
1831 struct TopologyIteratorContext *topo_ctx;
1835 if (tc->reason == GNUNET_SCHEDULER_REASON_TIMEOUT)
1836 fprintf(stderr, "PUT Request failed!\n");
1838 /* Reset the daemon (which peer to insert at) for later put request iterations */
1839 if (replicate_same == GNUNET_NO)
1840 test_put->daemon = GNUNET_TESTING_daemon_get(pg, GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers));
1842 GNUNET_SCHEDULER_cancel(test_put->disconnect_task);
1843 test_put->disconnect_task = GNUNET_SCHEDULER_add_now(&put_disconnect_task, test_put);
1844 if (GNUNET_YES == update_meter(put_meter))
1846 GNUNET_assert(outstanding_puts == 0);
1847 GNUNET_SCHEDULER_cancel (die_task);
1848 if (dhtlog_handle != NULL)
1850 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
1851 topo_ctx->cont = &do_get;
1852 topo_ctx->cls = all_gets;
1853 topo_ctx->timeout = DEFAULT_GET_TIMEOUT;
1854 topo_ctx->peers_seen = GNUNET_CONTAINER_multihashmap_create(num_peers);
1855 die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_add(GNUNET_TIME_relative_add(DEFAULT_GET_TIMEOUT, all_get_timeout), DEFAULT_TOPOLOGY_CAPTURE_TIMEOUT),
1856 &end_badly, "from do gets (put finished)");
1857 GNUNET_SCHEDULER_add_now(&capture_current_topology, topo_ctx);
1861 fprintf(stderr, "Scheduling die task (put finished)\n");
1862 die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_add(DEFAULT_GET_TIMEOUT, all_get_timeout),
1863 &end_badly, "from do gets (put finished)");
1864 GNUNET_SCHEDULER_add_delayed(DEFAULT_GET_TIMEOUT, &do_get, all_gets);
1871 * Set up some data, and call API PUT function
1874 do_put (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1876 struct TestPutContext *test_put = cls;
1877 char data[test_data_size]; /* Made up data to store */
1881 if (test_put == NULL)
1882 return; /* End of list */
1884 if (GNUNET_YES != GNUNET_TESTING_daemon_running(test_put->daemon)) /* If the peer has been churned off, don't try issuing request from it! */
1886 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Peer we should issue put request at is down, skipping.\n");
1887 update_meter(put_meter);
1888 GNUNET_SCHEDULER_add_now (&do_put, test_put->next);
1892 for (i = 0; i < sizeof(data); i++)
1894 memset(&data[i], GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, UINT32_MAX), 1);
1897 if (outstanding_puts > max_outstanding_puts)
1899 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MILLISECONDS, 200), &do_put, test_put);
1904 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Starting put for uid %u from peer %s\n",
1906 test_put->daemon->shortname);
1908 test_put->dht_handle = GNUNET_DHT_connect(test_put->daemon->cfg, 10);
1910 GNUNET_assert(test_put->dht_handle != NULL);
1912 GNUNET_DHT_put(test_put->dht_handle,
1913 &known_keys[test_put->uid],
1916 GNUNET_BLOCK_TYPE_TEST,
1918 GNUNET_TIME_UNIT_FOREVER_ABS,
1920 &put_finished, test_put);
1921 test_put->disconnect_task = GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_get_forever(), &put_disconnect_task, test_put);
1922 rand = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, 2);
1923 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, rand), &do_put, test_put->next);
1927 schedule_find_peer_requests (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc);
1930 * Given a number of total peers and a bucket size, estimate the number of
1931 * connections in a perfect kademlia topology.
1933 static unsigned int connection_estimate(unsigned int peer_count, unsigned int bucket_size)
1936 unsigned int filled;
1940 while (i >= bucket_size)
1945 filled++; /* Add one filled bucket to account for one "half full" and some miscellaneous */
1946 return filled * bucket_size * peer_count;
1952 * Callback for iterating over all the peer connections of a peer group.
1955 count_peers_cb (void *cls,
1956 const struct GNUNET_PeerIdentity *first,
1957 const struct GNUNET_PeerIdentity *second,
1960 struct FindPeerContext *find_peer_context = cls;
1961 if ((first != NULL) && (second != NULL))
1963 add_new_connection(find_peer_context, first, second);
1964 find_peer_context->current_peers++;
1968 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Peer count finished (%u connections), %u new peers, connection estimate %u (double %u)\n",
1969 find_peer_context->current_peers,
1970 find_peer_context->current_peers - find_peer_context->previous_peers,
1971 connection_estimate(num_peers, DEFAULT_BUCKET_SIZE),
1972 2 * connection_estimate(num_peers, DEFAULT_BUCKET_SIZE));
1974 if ((find_peer_context->last_sent < 8) ||
1975 ((find_peer_context->current_peers - find_peer_context->previous_peers > FIND_PEER_THRESHOLD) &&
1976 (find_peer_context->current_peers < 2 * connection_estimate(num_peers, DEFAULT_BUCKET_SIZE)) &&
1977 (GNUNET_TIME_absolute_get_remaining(find_peer_context->endtime).rel_value > 0)))
1979 GNUNET_SCHEDULER_add_now(&schedule_find_peer_requests, find_peer_context);
1983 GNUNET_CONTAINER_multihashmap_iterate(find_peer_context->peer_hash, &remove_peer_count, find_peer_context);
1984 GNUNET_CONTAINER_multihashmap_destroy(find_peer_context->peer_hash);
1985 GNUNET_CONTAINER_heap_destroy(find_peer_context->peer_min_heap);
1986 GNUNET_free(find_peer_context);
1987 fprintf(stderr, "Not sending any more find peer requests.\n");
1994 * Set up a single find peer request for each peer in the topology. Do this
1995 * until the settle time is over, limited by the number of outstanding requests
1996 * and the time allowed for each one!
1999 schedule_find_peer_requests (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
2001 struct FindPeerContext *find_peer_ctx = cls;
2002 struct TestFindPeer *test_find_peer;
2003 struct PeerCount *peer_count;
2007 if (find_peer_ctx->previous_peers == 0) /* First time, go slowly */
2008 find_peer_ctx->total = 1;
2009 else if (find_peer_ctx->current_peers - find_peer_ctx->previous_peers > MAX_FIND_PEER_CUTOFF) /* Found LOTS of peers, still go slowly */
2010 find_peer_ctx->total = find_peer_ctx->last_sent - (find_peer_ctx->last_sent / 8);
2012 find_peer_ctx->total = find_peer_ctx->last_sent * 2;
2014 if (find_peer_ctx->total > max_outstanding_find_peers)
2015 find_peer_ctx->total = max_outstanding_find_peers;
2017 if (find_peer_ctx->total > GNUNET_CONTAINER_heap_get_size(find_peer_ctx->peer_min_heap)) /* Don't try to send more messages than we have peers! */
2018 find_peer_ctx->total = GNUNET_CONTAINER_heap_get_size(find_peer_ctx->peer_min_heap);
2020 find_peer_ctx->last_sent = find_peer_ctx->total;
2021 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));
2023 find_peer_offset = GNUNET_TIME_relative_divide(find_peer_delay, find_peer_ctx->total);
2024 for (i = 0; i < find_peer_ctx->total; i++)
2026 test_find_peer = GNUNET_malloc(sizeof(struct TestFindPeer));
2027 if (find_peer_ctx->previous_peers == 0) /* If we haven't sent any requests yet, choose random peers */
2030 * Attempt to spread find peer requests across even sections of the peer address
2031 * space. Choose basically 1 peer in every num_peers / max_outstanding_requests
2032 * each time, then offset it by a randomish value.
2034 * For instance, if num_peers is 100 and max_outstanding is 10, first chosen peer
2035 * will be between 0 - 10, second between 10 - 20, etc.
2037 random = (num_peers / find_peer_ctx->total) * i;
2038 random = random + GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, (num_peers / find_peer_ctx->total));
2039 if (random >= num_peers)
2041 random = random - num_peers;
2044 random = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers);
2046 test_find_peer->daemon = GNUNET_TESTING_daemon_get(pg, random);
2048 else /* If we have sent requests, choose peers with a low number of connections to send requests from */
2050 peer_count = GNUNET_CONTAINER_heap_remove_root(find_peer_ctx->peer_min_heap);
2051 GNUNET_assert(GNUNET_YES == GNUNET_CONTAINER_multihashmap_remove(find_peer_ctx->peer_hash, &peer_count->peer_id.hashPubKey, peer_count));
2052 test_find_peer->daemon = GNUNET_TESTING_daemon_get_by_id(pg, &peer_count->peer_id);
2053 GNUNET_assert(test_find_peer->daemon != NULL);
2056 test_find_peer->find_peer_context = find_peer_ctx;
2057 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_multiply(find_peer_offset, i), &send_find_peer_request, test_find_peer);
2060 if ((find_peer_ctx->peer_hash == NULL) && (find_peer_ctx->peer_min_heap == NULL))
2062 find_peer_ctx->peer_hash = GNUNET_CONTAINER_multihashmap_create(num_peers);
2063 find_peer_ctx->peer_min_heap = GNUNET_CONTAINER_heap_create(GNUNET_CONTAINER_HEAP_ORDER_MIN);
2067 GNUNET_CONTAINER_multihashmap_iterate(find_peer_ctx->peer_hash, &remove_peer_count, find_peer_ctx);
2068 GNUNET_CONTAINER_multihashmap_destroy(find_peer_ctx->peer_hash);
2069 find_peer_ctx->peer_hash = GNUNET_CONTAINER_multihashmap_create(num_peers);
2072 GNUNET_assert(0 == GNUNET_CONTAINER_multihashmap_size(find_peer_ctx->peer_hash));
2073 GNUNET_assert(0 == GNUNET_CONTAINER_heap_get_size(find_peer_ctx->peer_min_heap));
2078 * Set up some all of the put and get operations we want
2079 * to do. Allocate data structure for each, add to list,
2080 * then call actual insert functions.
2083 setup_puts_and_gets (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
2086 uint32_t temp_daemon;
2087 struct TestPutContext *test_put;
2088 struct TestGetContext *test_get;
2090 int remember[num_puts][num_peers];
2091 memset(&remember, 0, sizeof(int) * num_puts * num_peers);
2093 known_keys = GNUNET_malloc(sizeof(GNUNET_HashCode) * num_puts);
2094 for (i = 0; i < num_puts; i++)
2096 test_put = GNUNET_malloc(sizeof(struct TestPutContext));
2098 GNUNET_CRYPTO_hash_create_random (GNUNET_CRYPTO_QUALITY_WEAK, &known_keys[i]);
2099 temp_daemon = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers);
2100 test_put->daemon = GNUNET_TESTING_daemon_get(pg, temp_daemon);
2101 test_put->next = all_puts;
2102 all_puts = test_put;
2105 for (i = 0; i < num_gets; i++)
2107 test_get = GNUNET_malloc(sizeof(struct TestGetContext));
2108 test_get->uid = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_puts);
2110 while (remember[test_get->uid][temp_daemon] == 1)
2111 temp_daemon = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers);
2112 remember[test_get->uid][temp_daemon] = 1;
2114 test_get->daemon = GNUNET_TESTING_daemon_get(pg, GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers));
2115 test_get->next = all_gets;
2116 all_gets = test_get;
2119 /*GNUNET_SCHEDULER_cancel (die_task);*/
2120 die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, num_puts * 2),
2121 &end_badly, "from do puts");
2122 GNUNET_SCHEDULER_add_now (&do_put, all_puts);
2127 * Set up some all of the put and get operations we want
2128 * to do. Allocate data structure for each, add to list,
2129 * then call actual insert functions.
2132 continue_puts_and_gets (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
2136 struct TopologyIteratorContext *topo_ctx;
2137 struct FindPeerContext *find_peer_context;
2138 if (dhtlog_handle != NULL)
2140 if (settle_time >= 180 * 2)
2141 max = (settle_time / 180) - 2;
2144 for (i = 1; i < max; i++)
2146 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
2147 topo_ctx->current_iteration = i;
2148 topo_ctx->total_iterations = max;
2149 topo_ctx->peers_seen = GNUNET_CONTAINER_multihashmap_create(num_peers);
2150 //fprintf(stderr, "scheduled topology iteration in %d minutes\n", i);
2151 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MINUTES, i * 3), &capture_current_topology, topo_ctx);
2153 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
2154 topo_ctx->cont = &setup_puts_and_gets;
2155 topo_ctx->peers_seen = GNUNET_CONTAINER_multihashmap_create(num_peers);
2156 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, (settle_time + 90)), &capture_current_topology, topo_ctx);
2159 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, (settle_time + 90)), &setup_puts_and_gets, NULL);
2161 if (dhtlog_handle != NULL)
2162 dhtlog_handle->insert_round(DHT_ROUND_NORMAL, rounds_finished);
2164 if (GNUNET_YES == do_find_peer)
2166 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Scheduling find peer requests during \"settle\" time.\n");
2167 find_peer_context = GNUNET_malloc(sizeof(struct FindPeerContext));
2168 find_peer_context->count_peers_cb = &count_peers_cb;
2169 find_peer_context->endtime = GNUNET_TIME_relative_to_absolute(GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, settle_time));
2170 GNUNET_SCHEDULER_add_now(&schedule_find_peer_requests, find_peer_context);
2174 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Assuming automatic DHT find peer requests.\n");
2179 * Task to release DHT handles
2182 malicious_disconnect_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
2184 struct MaliciousContext *ctx = cls;
2185 outstanding_malicious--;
2186 malicious_completed++;
2187 ctx->disconnect_task = GNUNET_SCHEDULER_NO_TASK;
2188 GNUNET_DHT_disconnect(ctx->dht_handle);
2189 ctx->dht_handle = NULL;
2192 if (malicious_completed == malicious_getters + malicious_putters + malicious_droppers)
2194 GNUNET_SCHEDULER_cancel(die_task);
2195 fprintf(stderr, "Finished setting all malicious peers up, calling continuation!\n");
2196 if (dhtlog_handle != NULL)
2197 GNUNET_SCHEDULER_add_now (&continue_puts_and_gets, NULL);
2199 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, settle_time),
2200 &continue_puts_and_gets, NULL);
2206 * Task to release DHT handles
2209 malicious_done_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
2211 struct MaliciousContext *ctx = cls;
2212 GNUNET_SCHEDULER_cancel(ctx->disconnect_task);
2213 GNUNET_SCHEDULER_add_now(&malicious_disconnect_task, ctx);
2217 * Set up some data, and call API PUT function
2220 set_malicious (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
2222 struct MaliciousContext *ctx = cls;
2224 if (outstanding_malicious > DEFAULT_MAX_OUTSTANDING_GETS)
2226 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MILLISECONDS, 100), &set_malicious, ctx);
2230 if (ctx->dht_handle == NULL)
2232 ctx->dht_handle = GNUNET_DHT_connect(ctx->daemon->cfg, 1);
2233 outstanding_malicious++;
2236 GNUNET_assert(ctx->dht_handle != NULL);
2240 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Setting peer %s malicious type %d\n",
2241 ctx->daemon->shortname, ctx->malicious_type);
2244 switch (ctx->malicious_type)
2246 case GNUNET_MESSAGE_TYPE_DHT_MALICIOUS_GET:
2247 GNUNET_DHT_set_malicious_getter(ctx->dht_handle, malicious_get_frequency);
2248 GNUNET_SCHEDULER_add_now (&malicious_done_task, ctx);
2250 case GNUNET_MESSAGE_TYPE_DHT_MALICIOUS_PUT:
2251 GNUNET_DHT_set_malicious_putter(ctx->dht_handle, malicious_put_frequency);
2252 GNUNET_SCHEDULER_add_now (&malicious_done_task, ctx);
2254 case GNUNET_MESSAGE_TYPE_DHT_MALICIOUS_DROP:
2255 GNUNET_DHT_set_malicious_dropper(ctx->dht_handle);
2256 GNUNET_SCHEDULER_add_now (&malicious_done_task, ctx);
2262 ctx->disconnect_task = GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_UNIT_FOREVER_REL,
2263 &malicious_disconnect_task, ctx);
2267 * Select randomly from set of known peers,
2268 * set the desired number of peers to the
2269 * proper malicious types.
2272 setup_malicious_peers (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
2274 struct MaliciousContext *ctx;
2276 uint32_t temp_daemon;
2278 for (i = 0; i < malicious_getters; i++)
2280 ctx = GNUNET_malloc(sizeof(struct MaliciousContext));
2281 temp_daemon = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers);
2282 ctx->daemon = GNUNET_TESTING_daemon_get(pg, temp_daemon);
2283 ctx->malicious_type = GNUNET_MESSAGE_TYPE_DHT_MALICIOUS_GET;
2284 GNUNET_SCHEDULER_add_now (&set_malicious, ctx);
2288 for (i = 0; i < malicious_putters; i++)
2290 ctx = GNUNET_malloc(sizeof(struct MaliciousContext));
2291 temp_daemon = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers);
2292 ctx->daemon = GNUNET_TESTING_daemon_get(pg, temp_daemon);
2293 ctx->malicious_type = GNUNET_MESSAGE_TYPE_DHT_MALICIOUS_PUT;
2294 GNUNET_SCHEDULER_add_now (&set_malicious, ctx);
2298 for (i = 0; i < malicious_droppers; i++)
2300 ctx = GNUNET_malloc(sizeof(struct MaliciousContext));
2301 temp_daemon = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers);
2302 ctx->daemon = GNUNET_TESTING_daemon_get(pg, temp_daemon);
2303 ctx->malicious_type = GNUNET_MESSAGE_TYPE_DHT_MALICIOUS_DROP;
2304 GNUNET_SCHEDULER_add_now (&set_malicious, ctx);
2308 * If we have any malicious peers to set up,
2309 * the malicious callback should call continue_gets_and_puts
2311 if (malicious_getters + malicious_putters + malicious_droppers > 0)
2313 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Giving malicious set tasks some time before starting testing!\n");
2314 die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, (malicious_getters + malicious_putters + malicious_droppers) * 2),
2315 &end_badly, "from set malicious");
2317 else /* Otherwise, continue testing */
2319 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Scheduling continue_puts_and_gets now!\n");
2320 GNUNET_SCHEDULER_add_now (&continue_puts_and_gets, NULL);
2325 * This function is called whenever a connection attempt is finished between two of
2326 * the started peers (started with GNUNET_TESTING_daemons_start). The total
2327 * number of times this function is called should equal the number returned
2328 * from the GNUNET_TESTING_connect_topology call.
2330 * The emsg variable is NULL on success (peers connected), and non-NULL on
2331 * failure (peers failed to connect).
2334 topology_callback (void *cls,
2335 const struct GNUNET_PeerIdentity *first,
2336 const struct GNUNET_PeerIdentity *second,
2338 const struct GNUNET_CONFIGURATION_Handle *first_cfg,
2339 const struct GNUNET_CONFIGURATION_Handle *second_cfg,
2340 struct GNUNET_TESTING_Daemon *first_daemon,
2341 struct GNUNET_TESTING_Daemon *second_daemon,
2344 struct TopologyIteratorContext *topo_ctx;
2347 total_connections++;
2349 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "connected peer %s to peer %s, distance %u\n",
2350 first_daemon->shortname,
2351 second_daemon->shortname,
2357 failed_connections++;
2358 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Failed to connect peer %s to peer %s with error :\n%s\n",
2359 first_daemon->shortname,
2360 second_daemon->shortname, emsg);
2362 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Failed to connect peer %s to peer %s with error :\n%s\n",
2363 first_daemon->shortname,
2364 second_daemon->shortname, emsg);
2368 GNUNET_assert(peer_connect_meter != NULL);
2369 if (GNUNET_YES == update_meter(peer_connect_meter))
2372 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2373 "Created %d total connections, which is our target number! Starting next phase of testing.\n",
2376 if (failed_connections > 0)
2377 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "While connecting, had %u failed connections.\n", failed_connections);
2378 if (dhtlog_handle != NULL)
2380 dhtlog_handle->update_connections (total_connections);
2381 dhtlog_handle->insert_topology(expected_connections);
2384 GNUNET_SCHEDULER_cancel (die_task);
2385 /*die_task = GNUNET_SCHEDULER_add_delayed (DEFAULT_TIMEOUT,
2386 &end_badly, "from setup puts/gets");*/
2387 if ((dhtlog_handle != NULL) && (settle_time > 0))
2389 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
2390 topo_ctx->cont = &setup_malicious_peers;
2391 topo_ctx->peers_seen = GNUNET_CONTAINER_multihashmap_create(num_peers);
2392 //topo_ctx->cont = &continue_puts_and_gets;
2393 GNUNET_SCHEDULER_add_now(&capture_current_topology, topo_ctx);
2397 GNUNET_SCHEDULER_add_now(&setup_malicious_peers, NULL);
2398 /*GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, settle_time),
2399 &continue_puts_and_gets, NULL);*/
2402 else if (total_connections + failed_connections == expected_connections)
2404 GNUNET_SCHEDULER_cancel (die_task);
2405 die_task = GNUNET_SCHEDULER_add_now (&end_badly, "from topology_callback (too many failed connections)");
2410 peers_started_callback (void *cls,
2411 const struct GNUNET_PeerIdentity *id,
2412 const struct GNUNET_CONFIGURATION_Handle *cfg,
2413 struct GNUNET_TESTING_Daemon *d, const char *emsg)
2417 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Failed to start daemon with error: `%s'\n",
2421 GNUNET_assert (id != NULL);
2424 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Started daemon %llu out of %llu\n",
2425 (num_peers - peers_left) + 1, num_peers);
2430 if (GNUNET_YES == update_meter(peer_start_meter))
2433 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2434 "All %d daemons started, now connecting peers!\n",
2437 GNUNET_SCHEDULER_cancel (die_task);
2439 expected_connections = UINT_MAX;
2440 if ((pg != NULL) && (peers_left == 0))
2442 expected_connections = GNUNET_TESTING_connect_topology (pg, connect_topology, connect_topology_option, connect_topology_option_modifier, NULL, NULL);
2444 peer_connect_meter = create_meter(expected_connections, "Peer connection ", GNUNET_YES);
2445 fprintf(stderr, "Have %d expected connections\n", expected_connections);
2448 if (expected_connections == GNUNET_SYSERR)
2450 die_task = GNUNET_SCHEDULER_add_now (&end_badly, "from connect topology (bad return)");
2453 die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, DEFAULT_CONNECT_TIMEOUT * expected_connections),
2454 &end_badly, "from connect topology (timeout)");
2463 peers_left = num_peers; /* Reset counter */
2464 if (GNUNET_TESTING_create_topology (pg, topology, blacklist_topology, blacklist_transports) != GNUNET_SYSERR)
2467 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2468 "Topology set up, now starting peers!\n");
2470 GNUNET_TESTING_daemons_continue_startup(pg);
2474 GNUNET_SCHEDULER_cancel (die_task);
2475 die_task = GNUNET_SCHEDULER_add_now (&end_badly, "from create topology (bad return)");
2477 GNUNET_free_non_null(blacklist_transports);
2478 GNUNET_SCHEDULER_cancel (die_task);
2479 die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(seconds_per_peer_start, num_peers),
2480 &end_badly, "from continue startup (timeout)");
2484 * Callback indicating that the hostkey was created for a peer.
2487 * @param id the peer identity
2488 * @param d the daemon handle (pretty useless at this point, remove?)
2489 * @param emsg non-null on failure
2492 hostkey_callback (void *cls,
2493 const struct GNUNET_PeerIdentity *id,
2494 struct GNUNET_TESTING_Daemon *d,
2499 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Hostkey callback received error: %s\n", emsg);
2503 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2504 "Hostkey (%d/%d) created for peer `%s'\n",
2505 num_peers - peers_left, num_peers, GNUNET_i2s(id));
2509 if (GNUNET_YES == update_meter(hostkey_meter))
2512 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2513 "All %d hostkeys created, now creating topology!\n",
2516 GNUNET_SCHEDULER_cancel (die_task);
2517 /* Set up task in case topology creation doesn't finish
2518 * within a reasonable amount of time */
2519 die_task = GNUNET_SCHEDULER_add_delayed (DEFAULT_TOPOLOGY_TIMEOUT,
2520 &end_badly, "from create_topology");
2521 GNUNET_SCHEDULER_add_now(&create_topology, NULL);
2530 const char *cfgfile, const struct GNUNET_CONFIGURATION_Handle *cfg)
2533 struct GNUNET_DHTLOG_TrialInfo trial_info;
2534 struct GNUNET_TESTING_Host *hosts;
2535 struct GNUNET_TESTING_Host *temphost;
2536 struct GNUNET_TESTING_Host *tempnext;
2538 char *connect_topology_str;
2539 char *blacklist_topology_str;
2540 char *connect_topology_option_str;
2541 char *connect_topology_option_modifier_string;
2543 char *topology_percentage_str;
2544 float topology_percentage;
2545 char *topology_probability_str;
2547 float topology_probability;
2548 unsigned long long temp_config_number;
2549 unsigned long long trial_to_run;
2552 int strict_kademlia;
2556 char *churn_filename;
2563 rounds_finished = 0;
2564 memset(&trial_info, 0, sizeof(struct GNUNET_DHTLOG_TrialInfo));
2565 /* Get path from configuration file */
2566 if (GNUNET_YES != GNUNET_CONFIGURATION_get_value_string(cfg, "paths", "servicehome", &test_directory))
2573 * Get DHT specific testing options.
2575 if ((GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht_testing", "mysql_logging")) ||
2576 (GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht_testing", "mysql_logging_extended")))
2578 dhtlog_handle = GNUNET_DHTLOG_connect(cfg);
2579 if (dhtlog_handle == NULL)
2581 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2582 "Could not connect to mysql server for logging, will NOT log dht operations!");
2588 stop_closest = GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht", "stop_on_closest");
2589 if (stop_closest == GNUNET_SYSERR)
2590 stop_closest = GNUNET_NO;
2592 stop_found = GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht", "stop_found");
2593 if (stop_found == GNUNET_SYSERR)
2594 stop_found = GNUNET_NO;
2596 strict_kademlia = GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht", "strict_kademlia");
2597 if (strict_kademlia == GNUNET_SYSERR)
2598 strict_kademlia = GNUNET_NO;
2601 GNUNET_CONFIGURATION_get_value_string (cfg, "dht_testing", "comment",
2603 trialmessage = NULL;
2606 /** Check for a churn file to do churny simulation */
2608 GNUNET_CONFIGURATION_get_value_string(cfg, "dht_testing", "churn_file",
2611 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Reading churn data from %s\n", churn_filename);
2612 if (GNUNET_OK != GNUNET_DISK_file_test (churn_filename))
2614 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Error reading churn file!\n");
2615 GNUNET_free_non_null(trialmessage);
2616 GNUNET_free(churn_filename);
2619 if ((0 != STAT (churn_filename, &frstat)) || (frstat.st_size == 0))
2621 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
2622 "Could not open file specified for churn data, ending test!");
2624 GNUNET_free_non_null(trialmessage);
2625 GNUNET_free(churn_filename);
2629 churn_data = GNUNET_malloc_large (frstat.st_size);
2630 GNUNET_assert(churn_data != NULL);
2631 if (frstat.st_size !=
2632 GNUNET_DISK_fn_read (churn_filename, churn_data, frstat.st_size))
2634 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
2635 "Could not read file %s specified for churn, ending test!", churn_filename);
2636 GNUNET_free (churn_filename);
2637 GNUNET_free (churn_data);
2638 GNUNET_free_non_null(trialmessage);
2642 GNUNET_free_non_null(churn_filename);
2646 /* Read the first line */
2647 while (count < frstat.st_size)
2650 if (((churn_data[count] == '\n')) && (buf != &churn_data[count]))
2652 churn_data[count] = '\0';
2653 if (1 != sscanf(buf, "%u", &churn_rounds))
2655 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Failed to read number of rounds from churn file, ending test!\n");
2657 GNUNET_free_non_null(trialmessage);
2658 GNUNET_free_non_null(churn_data);
2661 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Read %u rounds from churn file\n", churn_rounds);
2662 buf = &churn_data[count + 1];
2663 churn_array = GNUNET_malloc(sizeof(unsigned int) * churn_rounds);
2664 break; /* Done with this part */
2668 if (GNUNET_OK != GNUNET_CONFIGURATION_get_value_number(cfg, "dht_testing", "churns_per_round", &churns_per_round))
2670 churns_per_round = (unsigned long long)churn_rounds;
2674 while ((count < frstat.st_size) && (line_number < churn_rounds))
2677 if (((churn_data[count] == '\n')) && (buf != &churn_data[count]))
2679 churn_data[count] = '\0';
2681 ret = sscanf(buf, "%u", &churn_array[line_number]);
2684 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Read %u peers in round %u\n", churn_array[line_number], line_number);
2689 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Error reading line `%s' in hostfile\n", buf);
2690 buf = &churn_data[count + 1];
2693 buf = &churn_data[count + 1];
2695 else if (churn_data[count] == '\n') /* Blank line */
2696 buf = &churn_data[count + 1];
2699 GNUNET_free_non_null(churn_data);
2701 /** Check for a hostfile containing user@host:port triples */
2703 GNUNET_CONFIGURATION_get_value_string (cfg, "testing", "hostfile",
2710 if (hostfile != NULL)
2712 if (GNUNET_OK != GNUNET_DISK_file_test (hostfile))
2713 GNUNET_DISK_fn_write (hostfile, NULL, 0, GNUNET_DISK_PERM_USER_READ
2714 | GNUNET_DISK_PERM_USER_WRITE);
2715 if ((0 != STAT (hostfile, &frstat)) || (frstat.st_size == 0))
2717 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
2718 "Could not open file specified for host list, ending test!");
2720 GNUNET_free_non_null(trialmessage);
2721 GNUNET_free(hostfile);
2725 data = GNUNET_malloc_large (frstat.st_size);
2726 GNUNET_assert(data != NULL);
2727 if (frstat.st_size !=
2728 GNUNET_DISK_fn_read (hostfile, data, frstat.st_size))
2730 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
2731 "Could not read file %s specified for host list, ending test!", hostfile);
2732 GNUNET_free (hostfile);
2734 GNUNET_free_non_null(trialmessage);
2738 GNUNET_free_non_null(hostfile);
2742 while (count < frstat.st_size)
2745 /* if (((data[count] == '\n') || (data[count] == '\0')) && (buf != &data[count]))*/
2746 if (((data[count] == '\n')) && (buf != &data[count]))
2749 temphost = GNUNET_malloc(sizeof(struct GNUNET_TESTING_Host));
2750 ret = sscanf(buf, "%a[a-zA-Z0-9]@%a[a-zA-Z0-9.]:%hd", &temphost->username, &temphost->hostname, &temphost->port);
2753 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Successfully read host %s, port %d and user %s from file\n", temphost->hostname, temphost->port, temphost->username);
2757 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Error reading line `%s' in hostfile\n", buf);
2758 GNUNET_free(temphost);
2759 buf = &data[count + 1];
2762 /* temphost->hostname = buf; */
2763 temphost->next = hosts;
2765 buf = &data[count + 1];
2767 else if ((data[count] == '\n') || (data[count] == '\0'))
2768 buf = &data[count + 1];
2771 GNUNET_free_non_null(data);
2773 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "malicious_getters",
2774 &malicious_getters))
2775 malicious_getters = 0;
2778 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "malicious_putters",
2779 &malicious_putters))
2780 malicious_putters = 0;
2783 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "malicious_droppers",
2784 &malicious_droppers))
2785 malicious_droppers = 0;
2788 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "settle_time",
2792 if (GNUNET_SYSERR ==
2793 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "num_puts",
2795 num_puts = num_peers;
2797 if (GNUNET_SYSERR ==
2798 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "put_replication",
2800 put_replication = DEFAULT_PUT_REPLICATION;
2802 if (GNUNET_SYSERR ==
2803 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "num_gets",
2805 num_gets = num_peers;
2807 if (GNUNET_SYSERR ==
2808 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "get_replication",
2810 get_replication = DEFAULT_GET_REPLICATION;
2813 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "find_peer_delay",
2814 &temp_config_number))
2815 find_peer_delay = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_config_number);
2817 find_peer_delay = DEFAULT_FIND_PEER_DELAY;
2820 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "concurrent_find_peers",
2821 &temp_config_number))
2822 max_outstanding_find_peers = temp_config_number;
2824 max_outstanding_find_peers = DEFAULT_MAX_OUTSTANDING_FIND_PEERS;
2827 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "get_timeout",
2828 &temp_config_number))
2829 get_timeout = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_config_number);
2831 get_timeout = DEFAULT_GET_TIMEOUT;
2834 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "concurrent_puts",
2835 &temp_config_number))
2836 max_outstanding_puts = temp_config_number;
2838 max_outstanding_puts = DEFAULT_MAX_OUTSTANDING_PUTS;
2841 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "concurrent_gets",
2842 &temp_config_number))
2843 max_outstanding_gets = temp_config_number;
2845 max_outstanding_gets = DEFAULT_MAX_OUTSTANDING_GETS;
2848 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "timeout",
2849 &temp_config_number))
2850 all_get_timeout = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_config_number);
2852 all_get_timeout.rel_value = get_timeout.rel_value * num_gets;
2855 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "get_delay",
2856 &temp_config_number))
2857 get_delay = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_config_number);
2859 get_delay = DEFAULT_GET_DELAY;
2862 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "put_delay",
2863 &temp_config_number))
2864 put_delay = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_config_number);
2866 put_delay = DEFAULT_PUT_DELAY;
2869 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "peer_start_timeout",
2870 &temp_config_number))
2871 seconds_per_peer_start = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_config_number);
2873 seconds_per_peer_start = DEFAULT_SECONDS_PER_PEER_START;
2876 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "data_size",
2877 &temp_config_number))
2878 test_data_size = temp_config_number;
2880 test_data_size = DEFAULT_TEST_DATA_SIZE;
2883 * Get testing related options.
2885 if (GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno(cfg, "DHT_TESTING", "REPLICATE_SAME"))
2886 replicate_same = GNUNET_YES;
2889 * Get testing related options.
2891 if (GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno(cfg, "DHT_TESTING", "GET_FROM_SAME"))
2892 get_from_same = GNUNET_YES;
2895 if (GNUNET_NO == GNUNET_CONFIGURATION_get_value_time (cfg, "DHT_TESTING",
2896 "MALICIOUS_GET_FREQUENCY",
2897 &malicious_get_frequency))
2898 malicious_get_frequency = DEFAULT_MALICIOUS_GET_FREQUENCY;
2901 if (GNUNET_NO == GNUNET_CONFIGURATION_get_value_time (cfg, "DHT_TESTING",
2902 "MALICIOUS_PUT_FREQUENCY",
2903 &malicious_put_frequency))
2904 malicious_put_frequency = DEFAULT_MALICIOUS_PUT_FREQUENCY;
2907 /* The normal behavior of the DHT is to do find peer requests
2908 * on its own. Only if this is explicitly turned off should
2909 * the testing driver issue find peer requests (even though
2910 * this is likely the default when testing).
2913 GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht",
2916 do_find_peer = GNUNET_YES;
2920 GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht",
2923 in_dht_replication = GNUNET_YES;
2926 if (GNUNET_YES != GNUNET_CONFIGURATION_get_value_number (cfg, "DHT_TESTING",
2933 if (GNUNET_YES == GNUNET_CONFIGURATION_get_value_number (cfg, "DHT_TESTING",
2935 &temp_config_number))
2937 find_peer_delay = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_config_number);
2940 find_peer_delay = DEFAULT_FIND_PEER_DELAY;
2942 if (GNUNET_YES != GNUNET_CONFIGURATION_get_value_number(cfg, "DHT_TESTING", "ROUND_DELAY", &round_delay))
2945 if (GNUNET_NO == GNUNET_CONFIGURATION_get_value_number (cfg, "DHT_TESTING",
2946 "OUTSTANDING_FIND_PEERS",
2947 &max_outstanding_find_peers))
2948 max_outstanding_find_peers = DEFAULT_MAX_OUTSTANDING_FIND_PEERS;
2950 if (GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht", "strict_kademlia"))
2951 max_outstanding_find_peers = max_outstanding_find_peers * 1;
2953 find_peer_offset = GNUNET_TIME_relative_divide (find_peer_delay, max_outstanding_find_peers);
2955 if (GNUNET_SYSERR ==
2956 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "num_rounds",
2962 topology_str = NULL;
2964 GNUNET_CONFIGURATION_get_value_string(cfg, "testing", "topology",
2965 &topology_str)) && (GNUNET_NO == GNUNET_TESTING_topology_get(&topology, topology_str)))
2967 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2968 "Invalid topology `%s' given for section %s option %s\n", topology_str, "TESTING", "TOPOLOGY");
2969 topology = GNUNET_TESTING_TOPOLOGY_CLIQUE; /* Defaults to NONE, so set better default here */
2973 GNUNET_CONFIGURATION_get_value_string (cfg, "testing", "percentage",
2974 &topology_percentage_str))
2975 topology_percentage = 0.5;
2978 topology_percentage = atof (topology_percentage_str);
2979 GNUNET_free(topology_percentage_str);
2983 GNUNET_CONFIGURATION_get_value_string (cfg, "testing", "probability",
2984 &topology_probability_str))
2985 topology_probability = 0.5;
2988 topology_probability = atof (topology_probability_str);
2989 GNUNET_free(topology_probability_str);
2993 GNUNET_CONFIGURATION_get_value_string(cfg, "testing", "connect_topology",
2994 &connect_topology_str)) && (GNUNET_NO == GNUNET_TESTING_topology_get(&connect_topology, connect_topology_str)))
2996 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2997 "Invalid connect topology `%s' given for section %s option %s\n", connect_topology_str, "TESTING", "CONNECT_TOPOLOGY");
2999 GNUNET_free_non_null(connect_topology_str);
3002 GNUNET_CONFIGURATION_get_value_string(cfg, "testing", "connect_topology_option",
3003 &connect_topology_option_str)) && (GNUNET_NO == GNUNET_TESTING_topology_option_get(&connect_topology_option, connect_topology_option_str)))
3005 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
3006 "Invalid connect topology option `%s' given for section %s option %s\n", connect_topology_option_str, "TESTING", "CONNECT_TOPOLOGY_OPTION");
3007 connect_topology_option = GNUNET_TESTING_TOPOLOGY_OPTION_ALL; /* Defaults to NONE, set to ALL */
3009 GNUNET_free_non_null(connect_topology_option_str);
3012 GNUNET_CONFIGURATION_get_value_string (cfg, "testing", "connect_topology_option_modifier",
3013 &connect_topology_option_modifier_string))
3015 if (sscanf(connect_topology_option_modifier_string, "%lf", &connect_topology_option_modifier) != 1)
3017 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
3018 _("Invalid value `%s' for option `%s' in section `%s': expected float\n"),
3019 connect_topology_option_modifier_string,
3020 "connect_topology_option_modifier",
3023 GNUNET_free (connect_topology_option_modifier_string);
3026 if (GNUNET_YES != GNUNET_CONFIGURATION_get_value_string (cfg, "testing", "blacklist_transports",
3027 &blacklist_transports))
3028 blacklist_transports = NULL;
3031 GNUNET_CONFIGURATION_get_value_string(cfg, "testing", "blacklist_topology",
3032 &blacklist_topology_str)) &&
3033 (GNUNET_NO == GNUNET_TESTING_topology_get(&blacklist_topology, blacklist_topology_str)))
3035 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
3036 "Invalid topology `%s' given for section %s option %s\n", topology_str, "TESTING", "BLACKLIST_TOPOLOGY");
3038 GNUNET_free_non_null(topology_str);
3039 GNUNET_free_non_null(blacklist_topology_str);
3041 /* Get number of peers to start from configuration */
3042 if (GNUNET_SYSERR ==
3043 GNUNET_CONFIGURATION_get_value_number (cfg, "testing", "num_peers",
3046 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
3047 "Number of peers must be specified in section %s option %s\n", "TESTING", "NUM_PEERS");
3049 GNUNET_assert(num_peers > 0 && num_peers < ULONG_MAX);
3050 /* Set peers_left so we know when all peers started */
3051 peers_left = num_peers;
3054 /* Set up a task to end testing if peer start fails */
3055 die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(seconds_per_peer_start, num_peers),
3056 &end_badly, "didn't generate all hostkeys within allowed startup time!");
3058 if (dhtlog_handle == NULL)
3059 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
3060 "dhtlog_handle is NULL!");
3062 trial_info.other_identifier = (unsigned int)trial_to_run;
3063 trial_info.num_nodes = peers_left;
3064 trial_info.topology = topology;
3065 trial_info.blacklist_topology = blacklist_topology;
3066 trial_info.connect_topology = connect_topology;
3067 trial_info.connect_topology_option = connect_topology_option;
3068 trial_info.connect_topology_option_modifier = connect_topology_option_modifier;
3069 trial_info.topology_percentage = topology_percentage;
3070 trial_info.topology_probability = topology_probability;
3071 trial_info.puts = num_puts;
3072 trial_info.gets = num_gets;
3073 trial_info.concurrent = max_outstanding_gets;
3074 trial_info.settle_time = settle_time;
3075 trial_info.num_rounds = 1;
3076 trial_info.malicious_getters = malicious_getters;
3077 trial_info.malicious_putters = malicious_putters;
3078 trial_info.malicious_droppers = malicious_droppers;
3079 trial_info.malicious_get_frequency = malicious_get_frequency.rel_value;
3080 trial_info.malicious_put_frequency = malicious_put_frequency.rel_value;
3081 trial_info.stop_closest = stop_closest;
3082 trial_info.stop_found = stop_found;
3083 trial_info.strict_kademlia = strict_kademlia;
3085 if (trialmessage != NULL)
3086 trial_info.message = trialmessage;
3088 trial_info.message = "";
3090 if (dhtlog_handle != NULL)
3091 dhtlog_handle->insert_trial(&trial_info);
3093 GNUNET_free_non_null(trialmessage);
3095 hostkey_meter = create_meter(peers_left, "Hostkeys created ", GNUNET_YES);
3096 peer_start_meter = create_meter(peers_left, "Peers started ", GNUNET_YES);
3098 put_meter = create_meter(num_puts, "Puts completed ", GNUNET_YES);
3099 get_meter = create_meter(num_gets, "Gets completed ", GNUNET_YES);
3100 pg = GNUNET_TESTING_daemons_start (cfg,
3102 GNUNET_TIME_relative_multiply(seconds_per_peer_start, num_peers),
3103 &hostkey_callback, NULL,
3104 &peers_started_callback, NULL,
3105 &topology_callback, NULL,
3108 while (temphost != NULL)
3110 tempnext = temphost->next;
3111 GNUNET_free (temphost->username);
3112 GNUNET_free (temphost->hostname);
3113 GNUNET_free (temphost);
3114 temphost = tempnext;
3119 main (int argc, char *argv[])
3122 struct GNUNET_GETOPT_CommandLineOption options[] = {
3123 GNUNET_GETOPT_OPTION_END
3126 ret = GNUNET_PROGRAM_run (argc,
3127 argv, "gnunet-dht-driver", "nohelp",
3128 options, &run, &ok);
3130 if (ret != GNUNET_OK)
3132 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "`gnunet-dht-driver': Failed with error code %d\n", ret);
3136 * Need to remove base directory, subdirectories taken care
3137 * of by the testing framework.
3139 if (GNUNET_DISK_directory_remove (test_directory) != GNUNET_OK)
3141 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Failed to remove testing directory %s\n", test_directory);
3146 /* end of gnunet-dht-driver.c */