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 * Target number of connections (will stop sending find peer
510 * messages when this number is exceeded)
512 static unsigned long long target_total_connections;
515 * Number of rounds already run
517 static unsigned int rounds_finished;
520 * Number of rounds of churn to read from the file (first line, should be a single number).
522 static unsigned int churn_rounds;
525 * Current round we are in for churn, tells us how many peers to connect/disconnect.
527 static unsigned int current_churn_round;
530 * Number of times to churn per round
532 static unsigned long long churns_per_round;
535 * Array of churn values.
537 static unsigned int *churn_array;
540 * Hash map of stats contexts.
542 static struct GNUNET_CONTAINER_MultiHashMap *stats_map;
545 * LL of malicious settings.
547 struct MaliciousContext *all_malicious;
550 * List of GETS to perform
552 struct TestGetContext *all_gets;
555 * List of PUTS to perform
557 struct TestPutContext *all_puts;
560 * Directory to store temporary data in, defined in config file
562 static char *test_directory;
565 * Variable used to store the number of connections we should wait for.
567 static unsigned int expected_connections;
570 * Variable used to keep track of how many peers aren't yet started.
572 static unsigned long long peers_left;
575 * Handle to the set of all peers run for this test.
577 static struct GNUNET_TESTING_PeerGroup *pg;
581 * Global config handle.
583 static const struct GNUNET_CONFIGURATION_Handle *config;
586 * Total number of peers to run, set based on config file.
588 static unsigned long long num_peers;
591 * Total number of items to insert.
593 static unsigned long long num_puts;
596 * How many puts do we currently have in flight?
598 static unsigned long long outstanding_puts;
601 * How many puts are done?
603 static unsigned long long puts_completed;
606 * Total number of items to attempt to get.
608 static unsigned long long num_gets;
611 * How many puts do we currently have in flight?
613 static unsigned long long outstanding_gets;
616 * How many gets are done?
618 static unsigned long long gets_completed;
621 * How many gets failed?
623 static unsigned long long gets_failed;
626 * How many malicious control messages do
627 * we currently have in flight?
629 static unsigned long long outstanding_malicious;
632 * How many set malicious peers are done?
634 static unsigned long long malicious_completed;
637 * Global used to count how many connections we have currently
638 * been notified about (how many times has topology_callback been called
641 static unsigned int total_connections;
644 * Global used to count how many failed connections we have
645 * been notified about (how many times has topology_callback
646 * been called with failure?)
648 static unsigned int failed_connections;
650 /* Task handle to use to schedule shutdown if something goes wrong */
651 GNUNET_SCHEDULER_TaskIdentifier die_task;
653 static char *blacklist_transports;
655 static enum GNUNET_TESTING_Topology topology;
657 static enum GNUNET_TESTING_Topology blacklist_topology = GNUNET_TESTING_TOPOLOGY_NONE; /* Don't do any blacklisting */
659 static enum GNUNET_TESTING_Topology connect_topology = GNUNET_TESTING_TOPOLOGY_NONE; /* NONE actually means connect all allowed peers */
661 static enum GNUNET_TESTING_TopologyOption connect_topology_option = GNUNET_TESTING_TOPOLOGY_OPTION_ALL;
663 static double connect_topology_option_modifier = 0.0;
665 static struct ProgressMeter *hostkey_meter;
667 static struct ProgressMeter *peer_start_meter;
669 static struct ProgressMeter *peer_connect_meter;
671 static struct ProgressMeter *put_meter;
673 static struct ProgressMeter *get_meter;
675 static GNUNET_HashCode *known_keys;
677 /* Global return value (0 for success, anything else for failure) */
681 * Create a meter to keep track of the progress of some task.
683 * @param total the total number of items to complete
684 * @param start_string a string to prefix the meter with (if printing)
685 * @param print GNUNET_YES to print the meter, GNUNET_NO to count
688 * @return the progress meter
690 static struct ProgressMeter *
691 create_meter(unsigned int total, char * start_string, int print)
693 struct ProgressMeter *ret;
694 ret = GNUNET_malloc(sizeof(struct ProgressMeter));
697 ret->modnum = total / 4;
698 ret->dotnum = (total / 50) + 1;
699 if (start_string != NULL)
700 ret->startup_string = GNUNET_strdup(start_string);
702 ret->startup_string = GNUNET_strdup("");
708 * Update progress meter (increment by one).
710 * @param meter the meter to update and print info for
712 * @return GNUNET_YES if called the total requested,
713 * GNUNET_NO if more items expected
716 update_meter(struct ProgressMeter *meter)
718 if (meter->print == GNUNET_YES)
720 if (meter->completed % meter->modnum == 0)
722 if (meter->completed == 0)
724 fprintf(stdout, "%sProgress: [0%%", meter->startup_string);
727 fprintf(stdout, "%d%%", (int)(((float)meter->completed / meter->total) * 100));
729 else if (meter->completed % meter->dotnum == 0)
730 fprintf(stdout, ".");
732 if (meter->completed + 1 == meter->total)
733 fprintf(stdout, "%d%%]\n", 100);
738 if (meter->completed == meter->total)
744 * Reset progress meter.
746 * @param meter the meter to reset
748 * @return GNUNET_YES if meter reset,
749 * GNUNET_SYSERR on error
752 reset_meter(struct ProgressMeter *meter)
755 return GNUNET_SYSERR;
757 meter->completed = 0;
762 * Release resources for meter
764 * @param meter the meter to free
767 free_meter(struct ProgressMeter *meter)
769 GNUNET_free_non_null (meter->startup_string);
774 * Check whether peers successfully shut down.
777 shutdown_callback (void *cls,
788 * Task to release DHT handles for PUT
791 put_disconnect_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
793 struct TestPutContext *test_put = cls;
794 test_put->disconnect_task = GNUNET_SCHEDULER_NO_TASK;
795 GNUNET_DHT_disconnect(test_put->dht_handle);
796 test_put->dht_handle = NULL;
797 test_put->daemon = GNUNET_TESTING_daemon_get(pg, GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers));
801 * Function scheduled to be run on the successful completion of this
805 finish_testing (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
807 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Ending test normally!\n", (char *)cls);
808 GNUNET_assert (pg != NULL);
809 struct TestPutContext *test_put = all_puts;
810 struct TestGetContext *test_get = all_gets;
812 while (test_put != NULL)
814 if (test_put->disconnect_task != GNUNET_SCHEDULER_NO_TASK)
815 GNUNET_SCHEDULER_cancel(test_put->disconnect_task);
816 if (test_put->dht_handle != NULL)
817 GNUNET_DHT_disconnect(test_put->dht_handle);
818 test_put = test_put->next;
821 while (test_get != NULL)
823 if (test_get->disconnect_task != GNUNET_SCHEDULER_NO_TASK)
824 GNUNET_SCHEDULER_cancel(test_get->disconnect_task);
825 if (test_get->get_handle != NULL)
826 GNUNET_DHT_get_stop(test_get->get_handle);
827 if (test_get->dht_handle != NULL)
828 GNUNET_DHT_disconnect(test_get->dht_handle);
829 test_get = test_get->next;
832 GNUNET_TESTING_daemons_stop (pg, DEFAULT_TIMEOUT, &shutdown_callback, NULL);
834 if (dhtlog_handle != NULL)
836 fprintf(stderr, "Update trial endtime\n");
837 dhtlog_handle->update_trial (gets_completed);
838 GNUNET_DHTLOG_disconnect(dhtlog_handle);
839 dhtlog_handle = NULL;
842 if (hostkey_meter != NULL)
843 free_meter(hostkey_meter);
844 if (peer_start_meter != NULL)
845 free_meter(peer_start_meter);
846 if (peer_connect_meter != NULL)
847 free_meter(peer_connect_meter);
848 if (put_meter != NULL)
849 free_meter(put_meter);
850 if (get_meter != NULL)
851 free_meter(get_meter);
857 * Callback for iterating over all the peer connections of a peer group.
860 log_topology_cb (void *cls,
861 const struct GNUNET_PeerIdentity *first,
862 const struct GNUNET_PeerIdentity *second,
865 struct TopologyIteratorContext *topo_ctx = cls;
866 if ((first != NULL) && (second != NULL))
868 /* GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "According to CORE, peer %s is connected to %s\n", GNUNET_i2s(first), GNUNET_h2s(&second->hashPubKey));*/
869 if ((topo_ctx->peers_seen != NULL) && (GNUNET_NO == GNUNET_CONTAINER_multihashmap_contains(topo_ctx->peers_seen, &first->hashPubKey)))
871 GNUNET_CONTAINER_multihashmap_put(topo_ctx->peers_seen, &first->hashPubKey, NULL, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
872 topo_ctx->total_peers++;
874 topo_ctx->total_connections++;
875 if (GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno(config, "dht_testing", "mysql_logging"))
876 dhtlog_handle->insert_extended_topology(first, second);
880 GNUNET_assert(dhtlog_handle != NULL);
881 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);
882 dhtlog_handle->update_topology(topo_ctx->total_connections);
883 if (topo_ctx->cont != NULL)
884 GNUNET_SCHEDULER_add_now (topo_ctx->cont, topo_ctx->cls);
885 if (topo_ctx->peers_seen != NULL)
886 GNUNET_CONTAINER_multihashmap_destroy(topo_ctx->peers_seen);
887 GNUNET_free(topo_ctx);
892 * Iterator over hash map entries.
894 * @param cls closure - always NULL
895 * @param key current key code
896 * @param value value in the hash map, a stats context
897 * @return GNUNET_YES if we should continue to
901 static int stats_iterate (void *cls,
902 const GNUNET_HashCode * key,
905 struct StatisticsIteratorContext *stats_ctx;
909 dhtlog_handle->insert_stat(stats_ctx->peer, stats_ctx->stat_routes, stats_ctx->stat_route_forwards, stats_ctx->stat_results,
910 stats_ctx->stat_results_to_client, stats_ctx->stat_result_forwards, stats_ctx->stat_gets,
911 stats_ctx->stat_puts, stats_ctx->stat_puts_inserted, stats_ctx->stat_find_peer,
912 stats_ctx->stat_find_peer_start, stats_ctx->stat_get_start, stats_ctx->stat_put_start,
913 stats_ctx->stat_find_peer_reply, stats_ctx->stat_get_reply, stats_ctx->stat_find_peer_answer,
914 stats_ctx->stat_get_response_start);
915 GNUNET_free(stats_ctx);
920 stats_finished (void *cls, int result)
922 fprintf(stderr, "Finished getting all peers statistics, iterating!\n");
923 GNUNET_CONTAINER_multihashmap_iterate(stats_map, &stats_iterate, NULL);
924 GNUNET_CONTAINER_multihashmap_destroy(stats_map);
925 GNUNET_SCHEDULER_add_now (&finish_testing, NULL);
929 * Callback function to process statistic values.
932 * @param peer the peer the statistics belong to
933 * @param subsystem name of subsystem that created the statistic
934 * @param name the name of the datum
935 * @param value the current value
936 * @param is_persistent GNUNET_YES if the value is persistent, GNUNET_NO if not
937 * @return GNUNET_OK to continue, GNUNET_SYSERR to abort iteration
939 static int stats_handle (void *cls,
940 const struct GNUNET_PeerIdentity *peer,
941 const char *subsystem,
946 struct StatisticsIteratorContext *stats_ctx;
948 if (dhtlog_handle != NULL)
949 dhtlog_handle->add_generic_stat(peer, name, subsystem, value);
950 if (GNUNET_CONTAINER_multihashmap_contains(stats_map, &peer->hashPubKey))
952 stats_ctx = GNUNET_CONTAINER_multihashmap_get(stats_map, &peer->hashPubKey);
956 stats_ctx = GNUNET_malloc(sizeof(struct StatisticsIteratorContext));
957 stats_ctx->peer = peer;
958 GNUNET_CONTAINER_multihashmap_put(stats_map, &peer->hashPubKey, stats_ctx, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
960 GNUNET_assert(stats_ctx != NULL);
962 if (strcmp(name, STAT_ROUTES) == 0)
963 stats_ctx->stat_routes = value;
964 else if (strcmp(name, STAT_ROUTE_FORWARDS) == 0)
965 stats_ctx->stat_route_forwards = value;
966 else if (strcmp(name, STAT_RESULTS) == 0)
967 stats_ctx->stat_results = value;
968 else if (strcmp(name, STAT_RESULTS_TO_CLIENT) == 0)
969 stats_ctx->stat_results_to_client = value;
970 else if (strcmp(name, STAT_RESULT_FORWARDS) == 0)
971 stats_ctx->stat_result_forwards = value;
972 else if (strcmp(name, STAT_GETS) == 0)
973 stats_ctx->stat_gets = value;
974 else if (strcmp(name, STAT_PUTS) == 0)
975 stats_ctx->stat_puts = value;
976 else if (strcmp(name, STAT_PUTS_INSERTED) == 0)
977 stats_ctx->stat_puts_inserted = value;
978 else if (strcmp(name, STAT_FIND_PEER) == 0)
979 stats_ctx->stat_find_peer = value;
980 else if (strcmp(name, STAT_FIND_PEER_START) == 0)
981 stats_ctx->stat_find_peer_start = value;
982 else if (strcmp(name, STAT_GET_START) == 0)
983 stats_ctx->stat_get_start = value;
984 else if (strcmp(name, STAT_PUT_START) == 0)
985 stats_ctx->stat_put_start = value;
986 else if (strcmp(name, STAT_FIND_PEER_REPLY) == 0)
987 stats_ctx->stat_find_peer_reply = value;
988 else if (strcmp(name, STAT_GET_REPLY) == 0)
989 stats_ctx->stat_get_reply = value;
990 else if (strcmp(name, STAT_FIND_PEER_ANSWER) == 0)
991 stats_ctx->stat_find_peer_answer = value;
992 else if (strcmp(name, STAT_GET_RESPONSE_START) == 0)
993 stats_ctx->stat_get_response_start = value;
999 * Connect to statistics service for each peer and get the appropriate
1000 * dht statistics for safe keeping.
1003 log_dht_statistics (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1005 stats_map = GNUNET_CONTAINER_multihashmap_create(num_peers);
1006 fprintf(stderr, "Starting statistics logging\n");
1007 GNUNET_TESTING_get_statistics(pg, &stats_finished, &stats_handle, NULL);
1012 * Connect to all peers in the peer group and iterate over their
1016 capture_current_topology (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1018 struct TopologyIteratorContext *topo_ctx = cls;
1019 dhtlog_handle->insert_topology(0);
1020 GNUNET_TESTING_get_topology (pg, &log_topology_cb, topo_ctx);
1025 * Check if the get_handle is being used, if so stop the request. Either
1026 * way, schedule the end_badly_cont function which actually shuts down the
1030 end_badly (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1032 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Failing test with error: `%s'!\n", (char *)cls);
1034 struct TestPutContext *test_put = all_puts;
1035 struct TestGetContext *test_get = all_gets;
1037 while (test_put != NULL)
1039 if (test_put->disconnect_task != GNUNET_SCHEDULER_NO_TASK)
1040 GNUNET_SCHEDULER_cancel(test_put->disconnect_task);
1041 if (test_put->dht_handle != NULL)
1042 GNUNET_DHT_disconnect(test_put->dht_handle);
1043 test_put = test_put->next;
1046 while (test_get != NULL)
1048 if (test_get->disconnect_task != GNUNET_SCHEDULER_NO_TASK)
1049 GNUNET_SCHEDULER_cancel(test_get->disconnect_task);
1050 if (test_get->get_handle != NULL)
1051 GNUNET_DHT_get_stop(test_get->get_handle);
1052 if (test_get->dht_handle != NULL)
1053 GNUNET_DHT_disconnect(test_get->dht_handle);
1054 test_get = test_get->next;
1057 GNUNET_TESTING_daemons_stop (pg, DEFAULT_TIMEOUT, &shutdown_callback, NULL);
1059 if (dhtlog_handle != NULL)
1061 fprintf(stderr, "Update trial endtime\n");
1062 dhtlog_handle->update_trial (gets_completed);
1063 GNUNET_DHTLOG_disconnect(dhtlog_handle);
1064 dhtlog_handle = NULL;
1067 if (hostkey_meter != NULL)
1068 free_meter(hostkey_meter);
1069 if (peer_start_meter != NULL)
1070 free_meter(peer_start_meter);
1071 if (peer_connect_meter != NULL)
1072 free_meter(peer_connect_meter);
1073 if (put_meter != NULL)
1074 free_meter(put_meter);
1075 if (get_meter != NULL)
1076 free_meter(get_meter);
1082 * Forward declaration.
1085 do_put (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc);
1088 * Forward declaration.
1091 do_get (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc);
1094 * Iterator over hash map entries.
1096 * @param cls closure
1097 * @param key current key code
1098 * @param value value in the hash map
1099 * @return GNUNET_YES if we should continue to
1103 static int remove_peer_count (void *cls,
1104 const GNUNET_HashCode * key,
1107 struct FindPeerContext *find_peer_ctx = cls;
1108 struct PeerCount *peer_count = value;
1109 GNUNET_CONTAINER_heap_remove_node(find_peer_ctx->peer_min_heap, peer_count->heap_node);
1110 GNUNET_free(peer_count);
1116 * Connect to all peers in the peer group and iterate over their
1120 count_new_peers (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1122 struct FindPeerContext *find_peer_context = cls;
1123 find_peer_context->previous_peers = find_peer_context->current_peers;
1124 find_peer_context->current_peers = 0;
1125 GNUNET_TESTING_get_topology (pg, find_peer_context->count_peers_cb, find_peer_context);
1129 decrement_find_peers (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1131 struct TestFindPeer *test_find_peer = cls;
1132 GNUNET_assert(test_find_peer->find_peer_context->outstanding > 0);
1133 test_find_peer->find_peer_context->outstanding--;
1134 test_find_peer->find_peer_context->total--;
1135 if ((0 == test_find_peer->find_peer_context->total) &&
1136 (GNUNET_TIME_absolute_get_remaining(test_find_peer->find_peer_context->endtime).rel_value > 60))
1138 GNUNET_SCHEDULER_add_now(&count_new_peers, test_find_peer->find_peer_context);
1140 GNUNET_free(test_find_peer);
1144 * A find peer request has been sent to the server, now we will schedule a task
1145 * to wait the appropriate time to allow the request to go out and back.
1147 * @param cls closure - a TestFindPeer struct
1148 * @param tc context the task is being called with
1151 handle_find_peer_sent (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1153 struct TestFindPeer *test_find_peer = cls;
1155 GNUNET_DHT_disconnect(test_find_peer->dht_handle);
1156 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_divide(find_peer_delay, 2), &decrement_find_peers, test_find_peer);
1161 send_find_peer_request (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1163 struct TestFindPeer *test_find_peer = cls;
1165 if (test_find_peer->find_peer_context->outstanding > max_outstanding_find_peers)
1167 GNUNET_SCHEDULER_add_delayed(find_peer_offset, &send_find_peer_request, test_find_peer);
1171 test_find_peer->find_peer_context->outstanding++;
1172 if (GNUNET_TIME_absolute_get_remaining(test_find_peer->find_peer_context->endtime).rel_value == 0)
1174 GNUNET_SCHEDULER_add_now(&decrement_find_peers, test_find_peer);
1178 test_find_peer->dht_handle = GNUNET_DHT_connect(test_find_peer->daemon->cfg, 1);
1179 GNUNET_assert(test_find_peer->dht_handle != NULL);
1180 GNUNET_DHT_find_peers (test_find_peer->dht_handle,
1181 &handle_find_peer_sent, test_find_peer);
1186 * Add a connection to the find_peer_context given. This may
1187 * be complete overkill, but allows us to choose the peers with
1188 * the least connections to initiate find peer requests from.
1190 static void add_new_connection(struct FindPeerContext *find_peer_context,
1191 const struct GNUNET_PeerIdentity *first,
1192 const struct GNUNET_PeerIdentity *second)
1194 struct PeerCount *first_count;
1195 struct PeerCount *second_count;
1197 if (GNUNET_CONTAINER_multihashmap_contains(find_peer_context->peer_hash, &first->hashPubKey))
1199 first_count = GNUNET_CONTAINER_multihashmap_get(find_peer_context->peer_hash, &first->hashPubKey);
1200 GNUNET_assert(first_count != NULL);
1201 first_count->count++;
1202 GNUNET_CONTAINER_heap_update_cost(find_peer_context->peer_min_heap, first_count->heap_node, first_count->count);
1206 first_count = GNUNET_malloc(sizeof(struct PeerCount));
1207 first_count->count = 1;
1208 memcpy(&first_count->peer_id, first, sizeof(struct GNUNET_PeerIdentity));
1209 first_count->heap_node = GNUNET_CONTAINER_heap_insert(find_peer_context->peer_min_heap, first_count, first_count->count);
1210 GNUNET_CONTAINER_multihashmap_put(find_peer_context->peer_hash, &first->hashPubKey, first_count, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
1213 if (GNUNET_CONTAINER_multihashmap_contains(find_peer_context->peer_hash, &second->hashPubKey))
1215 second_count = GNUNET_CONTAINER_multihashmap_get(find_peer_context->peer_hash, &second->hashPubKey);
1216 GNUNET_assert(second_count != NULL);
1217 second_count->count++;
1218 GNUNET_CONTAINER_heap_update_cost(find_peer_context->peer_min_heap, second_count->heap_node, second_count->count);
1222 second_count = GNUNET_malloc(sizeof(struct PeerCount));
1223 second_count->count = 1;
1224 memcpy(&second_count->peer_id, second, sizeof(struct GNUNET_PeerIdentity));
1225 second_count->heap_node = GNUNET_CONTAINER_heap_insert(find_peer_context->peer_min_heap, second_count, second_count->count);
1226 GNUNET_CONTAINER_multihashmap_put(find_peer_context->peer_hash, &second->hashPubKey, second_count, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
1232 * Iterate over min heap of connections per peer. For any
1233 * peer that has 0 connections, attempt to connect them to
1236 * @param cls closure a struct FindPeerContext
1237 * @param node internal node of the heap
1238 * @param element value stored, a struct PeerCount
1239 * @param cost cost associated with the node
1240 * @return GNUNET_YES if we should continue to iterate,
1243 static int iterate_min_heap_peers (void *cls,
1244 struct GNUNET_CONTAINER_HeapNode *node,
1246 GNUNET_CONTAINER_HeapCostType cost)
1248 struct FindPeerContext *find_peer_context = cls;
1249 struct PeerCount *peer_count = element;
1250 struct GNUNET_TESTING_Daemon *d1;
1251 struct GNUNET_TESTING_Daemon *d2;
1252 struct GNUNET_TIME_Relative timeout;
1255 d1 = GNUNET_TESTING_daemon_get_by_id (pg, &peer_count->peer_id);
1256 GNUNET_assert(d1 != NULL);
1258 while ((d2 == d1) || (GNUNET_YES != GNUNET_TESTING_daemon_running(d2)))
1260 d2 = GNUNET_TESTING_daemon_get(pg, GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers));
1261 GNUNET_assert(d2 != NULL);
1264 /** Just try to connect the peers, don't worry about callbacks, etc. **/
1265 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);
1266 timeout = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, DEFAULT_CONNECT_TIMEOUT);
1267 if (GNUNET_TIME_relative_to_absolute(timeout).abs_value > find_peer_context->endtime.abs_value)
1269 timeout = GNUNET_TIME_absolute_get_remaining(find_peer_context->endtime);
1271 GNUNET_TESTING_daemons_connect(d1, d2, timeout, DEFAULT_RECONNECT_ATTEMPTS, NULL, NULL);
1273 if (GNUNET_TIME_absolute_get_remaining(find_peer_context->endtime).rel_value > 0)
1280 * Forward declaration.
1283 schedule_churn_find_peer_requests (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc);
1286 * Callback for iterating over all the peer connections of a peer group.
1287 * Used after we have churned on some peers to find which ones have zero
1288 * connections so we can make them issue find peer requests.
1291 count_peers_churn_cb (void *cls,
1292 const struct GNUNET_PeerIdentity *first,
1293 const struct GNUNET_PeerIdentity *second,
1296 struct FindPeerContext *find_peer_context = cls;
1297 struct TopologyIteratorContext *topo_ctx;
1298 struct PeerCount *peer_count;
1300 if ((first != NULL) && (second != NULL))
1302 add_new_connection(find_peer_context, first, second);
1303 find_peer_context->current_peers++;
1307 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Peer count finished (%u connections)\n",
1308 find_peer_context->current_peers);
1309 peer_count = GNUNET_CONTAINER_heap_peek(find_peer_context->peer_min_heap);
1310 GNUNET_assert(peer_count != NULL);
1311 /* 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. */
1312 /* NO they won't, because we have disabled peerinfo writing to disk (remember?) so we WILL have to give them new connections */
1313 /* Best course of action: have DHT automatically try to add peers from peerinfo on startup. This way IF peerinfo writes to file
1314 * then some peers will end up connected.
1316 * Also, find any peers that have zero connections here and set up a task to choose at random another peer in the network to
1317 * 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
1318 * until they get a peer.
1320 /* However, they won't automatically be connected to any of their previous peers... How can we handle that? */
1321 /* So now we have choices: do we want them to come back with all their connections? Probably not, but it solves this mess. */
1323 /* Second problem, which is still a problem, is that a FIND_PEER request won't work when a peer has no connections */
1326 * Okay, so here's how this *should* work now.
1328 * 1. We check the min heap for any peers that have 0 connections.
1329 * a. If any are found, we iterate over the heap and just randomly
1330 * choose another peer and ask testing to please connect the two.
1331 * This takes care of the case that a peer just randomly joins the
1332 * network. However, if there are strict topology restrictions
1333 * (imagine a ring) choosing randomly most likely won't help.
1334 * We make sure the connection attempt doesn't take longer than
1335 * the total timeout, but don't care too much about the result.
1336 * b. After that, we still schedule the find peer requests (concurrently
1337 * with the connect attempts most likely). This handles the case
1338 * that the DHT iterates over peerinfo and just needs to try to send
1339 * a message to get connected. This should handle the case that the
1340 * topology is very strict.
1342 * 2. If all peers have > 0 connections, we still send find peer requests
1343 * as long as possible (until timeout is reached) to help out those
1344 * peers that were newly churned and need more connections. This is because
1345 * once all new peers have established a single connection, they won't be
1348 * 3. Once we reach the timeout, we can do no more. We must schedule the
1349 * next iteration of get requests regardless of connections that peers
1350 * may or may not have.
1352 * Caveat: it would be nice to get peers to take data offline with them and
1353 * come back with it (or not) based on the testing framework. The
1354 * same goes for remembering previous connections, but putting either
1355 * into the general testing churn options seems like overkill because
1356 * these are very specialized cases.
1358 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);
1359 if ((peer_count->count == 0) && (GNUNET_TIME_absolute_get_remaining(find_peer_context->endtime).rel_value > 0))
1361 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Found peer with no connections, will choose some peer(s) at random to connect to!\n");
1362 GNUNET_CONTAINER_heap_iterate (find_peer_context->peer_min_heap, &iterate_min_heap_peers, find_peer_context);
1363 GNUNET_SCHEDULER_add_now(&schedule_churn_find_peer_requests, find_peer_context);
1365 else if ((GNUNET_TIME_absolute_get_remaining(find_peer_context->endtime).rel_value > 0) && (find_peer_context->last_sent != 0))
1367 GNUNET_SCHEDULER_add_now(&schedule_churn_find_peer_requests, find_peer_context);
1371 GNUNET_CONTAINER_multihashmap_iterate(find_peer_context->peer_hash, &remove_peer_count, find_peer_context);
1372 GNUNET_CONTAINER_multihashmap_destroy(find_peer_context->peer_hash);
1373 GNUNET_CONTAINER_heap_destroy(find_peer_context->peer_min_heap);
1374 GNUNET_free(find_peer_context);
1375 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Churn round %u of %llu finished, scheduling next GET round.\n", current_churn_round, churn_rounds);
1376 if (dhtlog_handle != NULL)
1378 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
1379 topo_ctx->cont = &do_get;
1380 topo_ctx->cls = all_gets;
1381 topo_ctx->timeout = DEFAULT_GET_TIMEOUT;
1382 topo_ctx->peers_seen = GNUNET_CONTAINER_multihashmap_create(num_peers);
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(&capture_current_topology, topo_ctx);
1389 die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_add(GNUNET_TIME_relative_add(DEFAULT_GET_TIMEOUT, all_get_timeout), DEFAULT_TOPOLOGY_CAPTURE_TIMEOUT),
1390 &end_badly, "from do gets (count_peers_churn_cb)");
1391 GNUNET_SCHEDULER_add_now(&do_get, all_gets);
1398 * Set up a single find peer request for each peer in the topology. Do this
1399 * until the settle time is over, limited by the number of outstanding requests
1400 * and the time allowed for each one!
1403 schedule_churn_find_peer_requests (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1405 struct FindPeerContext *find_peer_ctx = cls;
1406 struct TestFindPeer *test_find_peer;
1407 struct PeerCount *peer_count;
1410 if (find_peer_ctx->previous_peers == 0) /* First time, go slowly */
1411 find_peer_ctx->total = 1;
1412 else if (find_peer_ctx->current_peers - find_peer_ctx->previous_peers < MIN_FIND_PEER_CUTOFF)
1413 find_peer_ctx->total = find_peer_ctx->total / 2;
1414 else if (find_peer_ctx->current_peers - find_peer_ctx->previous_peers > MAX_FIND_PEER_CUTOFF) /* Found LOTS of peers, still go slowly */
1415 find_peer_ctx->total = find_peer_ctx->last_sent - (find_peer_ctx->last_sent / 4);
1417 find_peer_ctx->total = find_peer_ctx->last_sent * 4;
1419 if (find_peer_ctx->total > max_outstanding_find_peers)
1420 find_peer_ctx->total = max_outstanding_find_peers;
1422 find_peer_ctx->last_sent = find_peer_ctx->total;
1423 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Sending %u find peer messages (after churn)\n", find_peer_ctx->total);
1425 if (find_peer_ctx->total > 0)
1426 find_peer_offset = GNUNET_TIME_relative_divide(find_peer_delay, find_peer_ctx->total);
1429 find_peer_ctx->previous_peers = find_peer_ctx->current_peers;
1430 find_peer_ctx->current_peers = 0;
1431 GNUNET_TESTING_get_topology (pg, &count_peers_churn_cb, find_peer_ctx);
1435 for (i = 0; i < find_peer_ctx->total; i++)
1437 test_find_peer = GNUNET_malloc(sizeof(struct TestFindPeer));
1438 /* If we have sent requests, choose peers with a low number of connections to send requests from */
1439 peer_count = GNUNET_CONTAINER_heap_remove_root(find_peer_ctx->peer_min_heap);
1440 GNUNET_assert(peer_count != NULL);
1441 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Sending find peer request from peer with %u connections\n", peer_count->count);
1442 GNUNET_CONTAINER_multihashmap_remove(find_peer_ctx->peer_hash, &peer_count->peer_id.hashPubKey, peer_count);
1443 test_find_peer->daemon = GNUNET_TESTING_daemon_get_by_id(pg, &peer_count->peer_id);
1444 GNUNET_assert(test_find_peer->daemon != NULL);
1445 test_find_peer->find_peer_context = find_peer_ctx;
1446 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_multiply(find_peer_offset, i), &send_find_peer_request, test_find_peer);
1449 if ((find_peer_ctx->peer_hash == NULL) && (find_peer_ctx->peer_min_heap == NULL))
1451 find_peer_ctx->peer_hash = GNUNET_CONTAINER_multihashmap_create(num_peers);
1452 find_peer_ctx->peer_min_heap = GNUNET_CONTAINER_heap_create(GNUNET_CONTAINER_HEAP_ORDER_MIN);
1456 GNUNET_CONTAINER_multihashmap_iterate(find_peer_ctx->peer_hash, &remove_peer_count, find_peer_ctx);
1457 GNUNET_CONTAINER_multihashmap_destroy(find_peer_ctx->peer_hash);
1458 find_peer_ctx->peer_hash = GNUNET_CONTAINER_multihashmap_create(num_peers);
1461 GNUNET_assert(0 == GNUNET_CONTAINER_multihashmap_size(find_peer_ctx->peer_hash));
1462 GNUNET_assert(0 == GNUNET_CONTAINER_heap_get_size(find_peer_ctx->peer_min_heap));
1465 static void schedule_churn_get_topology (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1467 struct FindPeerContext *find_peer_context = cls;
1468 GNUNET_TESTING_get_topology (pg, &count_peers_churn_cb, find_peer_context);
1472 * Called when churning of the topology has finished.
1474 * @param cls closure unused
1475 * @param emsg NULL on success, or a printable error on failure
1477 static void churn_complete (void *cls, const char *emsg)
1479 struct FindPeerContext *find_peer_context = cls;
1480 struct PeerCount *peer_count;
1482 struct GNUNET_TESTING_Daemon *temp_daemon;
1483 struct TopologyIteratorContext *topo_ctx;
1484 struct GNUNET_TIME_Relative calc_timeout;
1489 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Ending test, churning of peers failed with error `%s'", emsg);
1490 GNUNET_SCHEDULER_add_now(&end_badly, (void *)emsg);
1495 * If we switched any peers on, we have to somehow force connect the new peer to
1496 * SOME bootstrap peer in the network. First schedule a task to find all peers
1497 * with no connections, then choose a random peer for each and connect them.
1499 if (find_peer_context != NULL)
1501 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "We have churned on some peers, so we must schedule find peer requests for them!\n");
1503 for (i = 0; i < num_peers; i ++)
1505 temp_daemon = GNUNET_TESTING_daemon_get(pg, i);
1506 if (GNUNET_YES == GNUNET_TESTING_daemon_running(temp_daemon))
1508 peer_count = GNUNET_malloc (sizeof(struct PeerCount));
1509 memcpy(&peer_count->peer_id, &temp_daemon->id, sizeof(struct GNUNET_PeerIdentity));
1510 GNUNET_assert(peer_count->count == 0);
1511 peer_count->heap_node = GNUNET_CONTAINER_heap_insert(find_peer_context->peer_min_heap, peer_count, peer_count->count);
1512 GNUNET_CONTAINER_multihashmap_put(find_peer_context->peer_hash, &temp_daemon->id.hashPubKey, peer_count, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
1516 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));
1517 GNUNET_SCHEDULER_add_delayed(DEFAULT_PEER_DISCONNECT_TIMEOUT, &schedule_churn_get_topology, find_peer_context);
1518 //GNUNET_TESTING_get_topology (pg, &count_peers_churn_cb, find_peer_context);
1522 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");
1523 if (dhtlog_handle != NULL)
1525 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
1526 topo_ctx->cont = &do_get;
1527 topo_ctx->cls = all_gets;
1528 topo_ctx->timeout = DEFAULT_GET_TIMEOUT;
1529 topo_ctx->peers_seen = GNUNET_CONTAINER_multihashmap_create(num_peers);
1530 calc_timeout = GNUNET_TIME_relative_add(DEFAULT_GET_TIMEOUT, all_get_timeout);
1531 calc_timeout = GNUNET_TIME_relative_add(calc_timeout, DEFAULT_TOPOLOGY_CAPTURE_TIMEOUT);
1532 calc_timeout = GNUNET_TIME_relative_add(calc_timeout, DEFAULT_PEER_DISCONNECT_TIMEOUT);
1533 die_task = GNUNET_SCHEDULER_add_delayed (calc_timeout,
1534 &end_badly, "from do gets (churn_complete)");
1535 GNUNET_SCHEDULER_add_delayed(DEFAULT_PEER_DISCONNECT_TIMEOUT, &capture_current_topology, topo_ctx);
1539 calc_timeout = GNUNET_TIME_relative_add(DEFAULT_GET_TIMEOUT, all_get_timeout);
1540 calc_timeout = GNUNET_TIME_relative_add(calc_timeout, DEFAULT_PEER_DISCONNECT_TIMEOUT);
1541 die_task = GNUNET_SCHEDULER_add_delayed (calc_timeout,
1542 &end_badly, "from do gets (churn_complete)");
1543 if (dhtlog_handle != NULL)
1544 dhtlog_handle->insert_round(DHT_ROUND_GET, rounds_finished);
1545 GNUNET_SCHEDULER_add_delayed(DEFAULT_PEER_DISCONNECT_TIMEOUT, &do_get, all_gets);
1551 * Decide how many peers to turn on or off in this round, make sure the
1552 * numbers actually make sense, then do so. This function sets in motion
1553 * churn, find peer requests for newly joined peers, and issuing get
1554 * requests once the new peers have done so.
1556 * @param cls closure (unused)
1557 * @param cls task context (unused)
1560 churn_peers (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1562 unsigned int count_running;
1563 unsigned int churn_up;
1564 unsigned int churn_down;
1565 struct GNUNET_TIME_Relative timeout;
1566 struct FindPeerContext *find_peer_context;
1568 churn_up = churn_down = 0;
1569 count_running = GNUNET_TESTING_daemons_running(pg);
1570 if (count_running > churn_array[current_churn_round])
1571 churn_down = count_running - churn_array[current_churn_round];
1572 else if (count_running < churn_array[current_churn_round])
1573 churn_up = churn_array[current_churn_round] - count_running;
1575 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Not churning any peers, topology unchanged.\n");
1577 if (churn_up > num_peers - count_running)
1579 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Churn file specified %u peers (up); only have %u!", churn_array[current_churn_round], num_peers);
1580 churn_up = num_peers - count_running;
1582 else if (churn_down > count_running)
1584 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Churn file specified %u peers (down); only have %u!", churn_array[current_churn_round], count_running);
1585 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "This will leave NO peers running (mistake in churn configuration?)!");
1586 churn_down = count_running;
1588 //timeout = GNUNET_TIME_relative_multiply(seconds_per_peer_start, churn_up > 0 ? churn_up : churn_down);
1589 //timeout = GNUNET_TIME_relative_multiply (seconds_per_peer_start, churn_up > 0 ? churn_up : churn_down);
1590 timeout = GNUNET_TIME_relative_multiply(DEFAULT_TIMEOUT, 2); /* FIXME: Lack of intelligent choice here */
1591 find_peer_context = NULL;
1592 if (churn_up > 0) /* Only need to do find peer requests if we turned new peers on */
1594 find_peer_context = GNUNET_malloc(sizeof(struct FindPeerContext));
1595 find_peer_context->count_peers_cb = &count_peers_churn_cb;
1596 find_peer_context->previous_peers = 0;
1597 find_peer_context->current_peers = 0;
1598 find_peer_context->endtime = GNUNET_TIME_relative_to_absolute(timeout);
1599 find_peer_context->peer_hash = GNUNET_CONTAINER_multihashmap_create(num_peers);
1600 find_peer_context->peer_min_heap = GNUNET_CONTAINER_heap_create(GNUNET_CONTAINER_HEAP_ORDER_MIN);
1602 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "churn_peers: want %u total, %u running, starting %u, stopping %u\n",
1603 churn_array[current_churn_round], count_running, churn_up, churn_down);
1604 GNUNET_TESTING_daemons_churn (pg, churn_down, churn_up, timeout, &churn_complete, find_peer_context);
1605 current_churn_round++;
1609 * Task to release DHT handle associated with GET request.
1612 get_stop_finished (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1614 struct TestGetContext *test_get = cls;
1615 struct TopologyIteratorContext *topo_ctx;
1617 /* The dht_handle may be null if this get was scheduled from a down peer */
1618 if (test_get->dht_handle != NULL)
1620 GNUNET_DHT_disconnect(test_get->dht_handle);
1621 outstanding_gets--; /* GET is really finished */
1622 test_get->dht_handle = NULL;
1625 /* Reset the uid (which item to search for) and the daemon (which peer to search from) for later get request iterations */
1626 if (get_from_same == GNUNET_NO)
1628 test_get->uid = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_puts);
1629 test_get->daemon = GNUNET_TESTING_daemon_get(pg, GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers));
1633 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "%d gets succeeded, %d gets failed!\n", gets_completed, gets_failed);
1635 update_meter(get_meter);
1636 if ((gets_completed + gets_failed == num_gets) && (outstanding_gets == 0))
1638 fprintf(stderr, "Canceling die task (get_stop_finished) %llu gets completed, %llu gets failed\n", gets_completed, gets_failed);
1639 GNUNET_SCHEDULER_cancel(die_task);
1640 reset_meter(put_meter);
1641 reset_meter(get_meter);
1644 * 1) Testing is completely finished, call the topology iteration dealy and die
1645 * 2) Testing is not finished, churn the network and do gets again (current_churn_round < churn_rounds)
1646 * 3) Testing is not finished, reschedule all the PUTS *and* GETS again (num_rounds > 1)
1648 if (rounds_finished == total_rounds - 1) /* Everything is finished, end testing */
1650 if (dhtlog_handle != NULL)
1652 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
1653 topo_ctx->cont = &log_dht_statistics;
1654 topo_ctx->peers_seen = GNUNET_CONTAINER_multihashmap_create(num_peers);
1655 GNUNET_SCHEDULER_add_now(&capture_current_topology, topo_ctx);
1658 GNUNET_SCHEDULER_add_now (&finish_testing, NULL);
1660 else if (current_churn_round < churns_per_round * (rounds_finished + 1)) /* Do next round of churn */
1662 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);
1666 if (dhtlog_handle != NULL)
1667 dhtlog_handle->insert_round(DHT_ROUND_CHURN, rounds_finished);
1669 GNUNET_SCHEDULER_add_now(&churn_peers, NULL);
1671 else if (rounds_finished < total_rounds - 1) /* Start a new complete round */
1676 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Round %u of %llu finished, scheduling next round.\n", rounds_finished, total_rounds);
1678 /** We reset the peer daemon for puts and gets on each disconnect, so all we need to do is start another round! */
1679 if (GNUNET_YES == in_dht_replication) /* Replication done in DHT, don't redo puts! */
1681 if (dhtlog_handle != NULL)
1682 dhtlog_handle->insert_round(DHT_ROUND_GET, rounds_finished);
1684 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),
1685 &end_badly, "from do gets (next round)");
1686 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, round_delay), &do_get, all_gets);
1690 if (dhtlog_handle != NULL)
1691 dhtlog_handle->insert_round(DHT_ROUND_NORMAL, rounds_finished);
1692 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)),
1693 &end_badly, "from do puts");
1694 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, round_delay), &do_put, all_puts);
1701 * Task to release get handle.
1704 get_stop_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1706 struct TestGetContext *test_get = cls;
1708 if (tc->reason == GNUNET_SCHEDULER_REASON_TIMEOUT)
1710 GNUNET_assert(test_get->get_handle != NULL);
1711 GNUNET_DHT_get_stop(test_get->get_handle);
1712 test_get->get_handle = NULL;
1713 test_get->disconnect_task = GNUNET_SCHEDULER_NO_TASK;
1714 GNUNET_SCHEDULER_add_now (&get_stop_finished, test_get);
1718 * Iterator called if the GET request initiated returns a response.
1720 * @param cls closure
1721 * @param exp when will this value expire
1722 * @param key key of the result
1723 * @param get_path NULL-terminated array of pointers
1724 * to the peers on reverse GET path (or NULL if not recorded)
1725 * @param put_path NULL-terminated array of pointers
1726 * to the peers on the PUT path (or NULL if not recorded)
1727 * @param type type of the result
1728 * @param size number of bytes in data
1729 * @param data pointer to the result data
1732 get_result_iterator (void *cls,
1733 struct GNUNET_TIME_Absolute exp,
1734 const GNUNET_HashCode * key,
1735 const struct GNUNET_PeerIdentity * const *get_path,
1736 const struct GNUNET_PeerIdentity * const *put_path,
1737 enum GNUNET_BLOCK_Type type,
1741 struct TestGetContext *test_get = cls;
1743 if (test_get->succeeded == GNUNET_YES)
1744 return; /* Get has already been successful, probably ending now */
1746 if (0 != memcmp(&known_keys[test_get->uid], key, sizeof (GNUNET_HashCode))) /* || (0 != memcmp(original_data, data, sizeof(original_data))))*/
1749 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Key or data is not the same as was inserted!\n");
1754 test_get->succeeded = GNUNET_YES;
1757 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Received correct GET response!\n");
1759 GNUNET_SCHEDULER_cancel(test_get->disconnect_task);
1760 GNUNET_SCHEDULER_add_continuation(&get_stop_task, test_get, GNUNET_SCHEDULER_REASON_PREREQ_DONE);
1766 * Set up some data, and call API PUT function
1769 do_get (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1771 struct TestGetContext *test_get = cls;
1775 GNUNET_SCHEDULER_cancel(die_task);
1776 GNUNET_SCHEDULER_add_now(&finish_testing, NULL);
1779 if (test_get == NULL)
1780 return; /* End of the list */
1782 /* Set this here in case we are re-running gets */
1783 test_get->succeeded = GNUNET_NO;
1785 if (GNUNET_YES != GNUNET_TESTING_daemon_running(test_get->daemon)) /* If the peer has been churned off, don't try issuing request from it! */
1787 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Peer we should issue get request from is down, skipping.\n");
1789 GNUNET_SCHEDULER_add_now (&get_stop_finished, test_get);
1790 GNUNET_SCHEDULER_add_now (&do_get, test_get->next);
1794 /* Check if more gets are outstanding than should be */
1795 if (outstanding_gets > max_outstanding_gets)
1797 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MILLISECONDS, 200), &do_get, test_get);
1801 /* Connect to the first peer's DHT */
1802 test_get->dht_handle = GNUNET_DHT_connect(test_get->daemon->cfg, 10);
1803 GNUNET_assert(test_get->dht_handle != NULL);
1806 /* Insert the data at the first peer */
1807 test_get->get_handle = GNUNET_DHT_get_start(test_get->dht_handle,
1809 GNUNET_BLOCK_TYPE_TEST,
1810 &known_keys[test_get->uid],
1815 &get_result_iterator,
1819 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Starting get for uid %u from peer %s\n",
1821 test_get->daemon->shortname);
1823 test_get->disconnect_task = GNUNET_SCHEDULER_add_delayed(get_timeout, &get_stop_task, test_get);
1825 /* Schedule the next request in the linked list of get requests */
1826 GNUNET_SCHEDULER_add_now (&do_get, test_get->next);
1830 * Called when the PUT request has been transmitted to the DHT service.
1831 * Schedule the GET request for some time in the future.
1834 put_finished (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1836 struct TestPutContext *test_put = cls;
1837 struct TopologyIteratorContext *topo_ctx;
1841 if (tc->reason == GNUNET_SCHEDULER_REASON_TIMEOUT)
1842 fprintf(stderr, "PUT Request failed!\n");
1844 /* Reset the daemon (which peer to insert at) for later put request iterations */
1845 if (replicate_same == GNUNET_NO)
1846 test_put->daemon = GNUNET_TESTING_daemon_get(pg, GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers));
1848 GNUNET_SCHEDULER_cancel(test_put->disconnect_task);
1849 test_put->disconnect_task = GNUNET_SCHEDULER_add_now(&put_disconnect_task, test_put);
1850 if (GNUNET_YES == update_meter(put_meter))
1852 GNUNET_assert(outstanding_puts == 0);
1853 GNUNET_SCHEDULER_cancel (die_task);
1854 if (dhtlog_handle != NULL)
1856 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
1857 topo_ctx->cont = &do_get;
1858 topo_ctx->cls = all_gets;
1859 topo_ctx->timeout = DEFAULT_GET_TIMEOUT;
1860 topo_ctx->peers_seen = GNUNET_CONTAINER_multihashmap_create(num_peers);
1861 die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_add(GNUNET_TIME_relative_add(DEFAULT_GET_TIMEOUT, all_get_timeout), DEFAULT_TOPOLOGY_CAPTURE_TIMEOUT),
1862 &end_badly, "from do gets (put finished)");
1863 GNUNET_SCHEDULER_add_now(&capture_current_topology, topo_ctx);
1867 fprintf(stderr, "Scheduling die task (put finished)\n");
1868 die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_add(DEFAULT_GET_TIMEOUT, all_get_timeout),
1869 &end_badly, "from do gets (put finished)");
1870 GNUNET_SCHEDULER_add_delayed(DEFAULT_GET_TIMEOUT, &do_get, all_gets);
1877 * Set up some data, and call API PUT function
1880 do_put (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1882 struct TestPutContext *test_put = cls;
1883 char data[test_data_size]; /* Made up data to store */
1887 if (test_put == NULL)
1888 return; /* End of list */
1890 if (GNUNET_YES != GNUNET_TESTING_daemon_running(test_put->daemon)) /* If the peer has been churned off, don't try issuing request from it! */
1892 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Peer we should issue put request at is down, skipping.\n");
1893 update_meter(put_meter);
1894 GNUNET_SCHEDULER_add_now (&do_put, test_put->next);
1898 for (i = 0; i < sizeof(data); i++)
1900 memset(&data[i], GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, UINT32_MAX), 1);
1903 if (outstanding_puts > max_outstanding_puts)
1905 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MILLISECONDS, 200), &do_put, test_put);
1910 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Starting put for uid %u from peer %s\n",
1912 test_put->daemon->shortname);
1914 test_put->dht_handle = GNUNET_DHT_connect(test_put->daemon->cfg, 10);
1916 GNUNET_assert(test_put->dht_handle != NULL);
1918 GNUNET_DHT_put(test_put->dht_handle,
1919 &known_keys[test_put->uid],
1922 GNUNET_BLOCK_TYPE_TEST,
1924 GNUNET_TIME_UNIT_FOREVER_ABS,
1926 &put_finished, test_put);
1927 test_put->disconnect_task = GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_get_forever(), &put_disconnect_task, test_put);
1928 rand = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, 2);
1929 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, rand), &do_put, test_put->next);
1933 schedule_find_peer_requests (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc);
1936 * Given a number of total peers and a bucket size, estimate the number of
1937 * connections in a perfect kademlia topology.
1939 static unsigned int connection_estimate(unsigned int peer_count, unsigned int bucket_size)
1942 unsigned int filled;
1946 while (i >= bucket_size)
1951 filled++; /* Add one filled bucket to account for one "half full" and some miscellaneous */
1952 return filled * bucket_size * peer_count;
1958 * Callback for iterating over all the peer connections of a peer group.
1961 count_peers_cb (void *cls,
1962 const struct GNUNET_PeerIdentity *first,
1963 const struct GNUNET_PeerIdentity *second,
1966 struct FindPeerContext *find_peer_context = cls;
1967 if ((first != NULL) && (second != NULL))
1969 add_new_connection(find_peer_context, first, second);
1970 find_peer_context->current_peers++;
1974 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Peer count finished (%u connections), %u new peers, connection estimate %u (target %u)\n",
1975 find_peer_context->current_peers,
1976 find_peer_context->current_peers - find_peer_context->previous_peers,
1977 connection_estimate(num_peers, DEFAULT_BUCKET_SIZE),
1978 target_total_connections);
1980 if ((find_peer_context->last_sent < 8) ||
1981 ((find_peer_context->current_peers - find_peer_context->previous_peers > FIND_PEER_THRESHOLD) &&
1982 (find_peer_context->current_peers < 2 * connection_estimate(num_peers, DEFAULT_BUCKET_SIZE)) &&
1983 (GNUNET_TIME_absolute_get_remaining(find_peer_context->endtime).rel_value > 0) &&
1984 (find_peer_context->current_peers < target_total_connections)))
1986 GNUNET_SCHEDULER_add_now(&schedule_find_peer_requests, find_peer_context);
1990 GNUNET_CONTAINER_multihashmap_iterate(find_peer_context->peer_hash, &remove_peer_count, find_peer_context);
1991 GNUNET_CONTAINER_multihashmap_destroy(find_peer_context->peer_hash);
1992 GNUNET_CONTAINER_heap_destroy(find_peer_context->peer_min_heap);
1993 GNUNET_free(find_peer_context);
1994 fprintf(stderr, "Not sending any more find peer requests.\n");
2001 * Set up a single find peer request for each peer in the topology. Do this
2002 * until the settle time is over, limited by the number of outstanding requests
2003 * and the time allowed for each one!
2006 schedule_find_peer_requests (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
2008 struct FindPeerContext *find_peer_ctx = cls;
2009 struct TestFindPeer *test_find_peer;
2010 struct PeerCount *peer_count;
2014 if (find_peer_ctx->previous_peers == 0) /* First time, go slowly */
2015 find_peer_ctx->total = 1;
2016 else if (find_peer_ctx->current_peers - find_peer_ctx->previous_peers > MAX_FIND_PEER_CUTOFF) /* Found LOTS of peers, still go slowly */
2017 find_peer_ctx->total = find_peer_ctx->last_sent - (find_peer_ctx->last_sent / 8);
2019 find_peer_ctx->total = find_peer_ctx->last_sent * 2;
2021 if (find_peer_ctx->total > max_outstanding_find_peers)
2022 find_peer_ctx->total = max_outstanding_find_peers;
2024 if (find_peer_ctx->total > num_peers) /* Don't try to send more messages than we have peers! */
2025 find_peer_ctx->total = num_peers;
2027 find_peer_ctx->last_sent = find_peer_ctx->total;
2028 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Sending %u find peer messages (goal at least %u connections)\n", find_peer_ctx->total, target_total_connections);
2030 find_peer_offset = GNUNET_TIME_relative_divide(find_peer_delay, find_peer_ctx->total);
2031 for (i = 0; i < find_peer_ctx->total; i++)
2033 test_find_peer = GNUNET_malloc(sizeof(struct TestFindPeer));
2034 if (find_peer_ctx->previous_peers == 0) /* If we haven't sent any requests yet, choose random peers */
2037 * Attempt to spread find peer requests across even sections of the peer address
2038 * space. Choose basically 1 peer in every num_peers / max_outstanding_requests
2039 * each time, then offset it by a randomish value.
2041 * For instance, if num_peers is 100 and max_outstanding is 10, first chosen peer
2042 * will be between 0 - 10, second between 10 - 20, etc.
2044 random = (num_peers / find_peer_ctx->total) * i;
2045 random = random + GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, (num_peers / find_peer_ctx->total));
2046 if (random >= num_peers)
2048 random = random - num_peers;
2051 random = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers);
2053 test_find_peer->daemon = GNUNET_TESTING_daemon_get(pg, random);
2055 else /* If we have sent requests, choose peers with a low number of connections to send requests from */
2057 peer_count = GNUNET_CONTAINER_heap_remove_root(find_peer_ctx->peer_min_heap);
2058 GNUNET_assert(GNUNET_YES == GNUNET_CONTAINER_multihashmap_remove(find_peer_ctx->peer_hash, &peer_count->peer_id.hashPubKey, peer_count));
2059 test_find_peer->daemon = GNUNET_TESTING_daemon_get_by_id(pg, &peer_count->peer_id);
2060 GNUNET_assert(test_find_peer->daemon != NULL);
2063 test_find_peer->find_peer_context = find_peer_ctx;
2064 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_multiply(find_peer_offset, i), &send_find_peer_request, test_find_peer);
2067 if ((find_peer_ctx->peer_hash == NULL) && (find_peer_ctx->peer_min_heap == NULL))
2069 find_peer_ctx->peer_hash = GNUNET_CONTAINER_multihashmap_create(num_peers);
2070 find_peer_ctx->peer_min_heap = GNUNET_CONTAINER_heap_create(GNUNET_CONTAINER_HEAP_ORDER_MIN);
2074 GNUNET_CONTAINER_multihashmap_iterate(find_peer_ctx->peer_hash, &remove_peer_count, find_peer_ctx);
2075 GNUNET_CONTAINER_multihashmap_destroy(find_peer_ctx->peer_hash);
2076 find_peer_ctx->peer_hash = GNUNET_CONTAINER_multihashmap_create(num_peers);
2079 GNUNET_assert(0 == GNUNET_CONTAINER_multihashmap_size(find_peer_ctx->peer_hash));
2080 GNUNET_assert(0 == GNUNET_CONTAINER_heap_get_size(find_peer_ctx->peer_min_heap));
2085 * Set up some all of the put and get operations we want
2086 * to do. Allocate data structure for each, add to list,
2087 * then call actual insert functions.
2090 setup_puts_and_gets (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
2093 uint32_t temp_daemon;
2094 struct TestPutContext *test_put;
2095 struct TestGetContext *test_get;
2097 int remember[num_puts][num_peers];
2098 memset(&remember, 0, sizeof(int) * num_puts * num_peers);
2100 known_keys = GNUNET_malloc(sizeof(GNUNET_HashCode) * num_puts);
2101 for (i = 0; i < num_puts; i++)
2103 test_put = GNUNET_malloc(sizeof(struct TestPutContext));
2105 GNUNET_CRYPTO_hash_create_random (GNUNET_CRYPTO_QUALITY_WEAK, &known_keys[i]);
2106 temp_daemon = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers);
2107 test_put->daemon = GNUNET_TESTING_daemon_get(pg, temp_daemon);
2108 test_put->next = all_puts;
2109 all_puts = test_put;
2112 for (i = 0; i < num_gets; i++)
2114 test_get = GNUNET_malloc(sizeof(struct TestGetContext));
2115 test_get->uid = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_puts);
2117 while (remember[test_get->uid][temp_daemon] == 1)
2118 temp_daemon = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers);
2119 remember[test_get->uid][temp_daemon] = 1;
2121 test_get->daemon = GNUNET_TESTING_daemon_get(pg, GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers));
2122 test_get->next = all_gets;
2123 all_gets = test_get;
2126 /*GNUNET_SCHEDULER_cancel (die_task);*/
2127 die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, num_puts * 2),
2128 &end_badly, "from do puts");
2129 GNUNET_SCHEDULER_add_now (&do_put, all_puts);
2134 * Set up some all of the put and get operations we want
2135 * to do. Allocate data structure for each, add to list,
2136 * then call actual insert functions.
2139 continue_puts_and_gets (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
2143 struct TopologyIteratorContext *topo_ctx;
2144 struct FindPeerContext *find_peer_context;
2145 if (dhtlog_handle != NULL)
2147 if (settle_time >= 180 * 2)
2148 max = (settle_time / 180) - 2;
2151 for (i = 1; i < max; i++)
2153 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
2154 topo_ctx->current_iteration = i;
2155 topo_ctx->total_iterations = max;
2156 topo_ctx->peers_seen = GNUNET_CONTAINER_multihashmap_create(num_peers);
2157 //fprintf(stderr, "scheduled topology iteration in %d minutes\n", i);
2158 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MINUTES, i * 3), &capture_current_topology, topo_ctx);
2160 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
2161 topo_ctx->cont = &setup_puts_and_gets;
2162 topo_ctx->peers_seen = GNUNET_CONTAINER_multihashmap_create(num_peers);
2163 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, (settle_time + 90)), &capture_current_topology, topo_ctx);
2166 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, (settle_time + 90)), &setup_puts_and_gets, NULL);
2168 if (dhtlog_handle != NULL)
2169 dhtlog_handle->insert_round(DHT_ROUND_NORMAL, rounds_finished);
2171 if (GNUNET_YES == do_find_peer)
2173 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Scheduling find peer requests during \"settle\" time.\n");
2174 find_peer_context = GNUNET_malloc(sizeof(struct FindPeerContext));
2175 find_peer_context->count_peers_cb = &count_peers_cb;
2176 find_peer_context->endtime = GNUNET_TIME_relative_to_absolute(GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, settle_time));
2177 GNUNET_SCHEDULER_add_now(&schedule_find_peer_requests, find_peer_context);
2181 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Assuming automatic DHT find peer requests.\n");
2186 * Task to release DHT handles
2189 malicious_disconnect_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
2191 struct MaliciousContext *ctx = cls;
2192 outstanding_malicious--;
2193 malicious_completed++;
2194 ctx->disconnect_task = GNUNET_SCHEDULER_NO_TASK;
2195 GNUNET_DHT_disconnect(ctx->dht_handle);
2196 ctx->dht_handle = NULL;
2199 if (malicious_completed == malicious_getters + malicious_putters + malicious_droppers)
2201 GNUNET_SCHEDULER_cancel(die_task);
2202 fprintf(stderr, "Finished setting all malicious peers up, calling continuation!\n");
2203 if (dhtlog_handle != NULL)
2204 GNUNET_SCHEDULER_add_now (&continue_puts_and_gets, NULL);
2206 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, settle_time),
2207 &continue_puts_and_gets, NULL);
2213 * Task to release DHT handles
2216 malicious_done_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
2218 struct MaliciousContext *ctx = cls;
2219 GNUNET_SCHEDULER_cancel(ctx->disconnect_task);
2220 GNUNET_SCHEDULER_add_now(&malicious_disconnect_task, ctx);
2224 * Set up some data, and call API PUT function
2227 set_malicious (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
2229 struct MaliciousContext *ctx = cls;
2231 if (outstanding_malicious > DEFAULT_MAX_OUTSTANDING_GETS)
2233 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MILLISECONDS, 100), &set_malicious, ctx);
2237 if (ctx->dht_handle == NULL)
2239 ctx->dht_handle = GNUNET_DHT_connect(ctx->daemon->cfg, 1);
2240 outstanding_malicious++;
2243 GNUNET_assert(ctx->dht_handle != NULL);
2247 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Setting peer %s malicious type %d\n",
2248 ctx->daemon->shortname, ctx->malicious_type);
2251 switch (ctx->malicious_type)
2253 case GNUNET_MESSAGE_TYPE_DHT_MALICIOUS_GET:
2254 GNUNET_DHT_set_malicious_getter(ctx->dht_handle, malicious_get_frequency);
2255 GNUNET_SCHEDULER_add_now (&malicious_done_task, ctx);
2257 case GNUNET_MESSAGE_TYPE_DHT_MALICIOUS_PUT:
2258 GNUNET_DHT_set_malicious_putter(ctx->dht_handle, malicious_put_frequency);
2259 GNUNET_SCHEDULER_add_now (&malicious_done_task, ctx);
2261 case GNUNET_MESSAGE_TYPE_DHT_MALICIOUS_DROP:
2262 GNUNET_DHT_set_malicious_dropper(ctx->dht_handle);
2263 GNUNET_SCHEDULER_add_now (&malicious_done_task, ctx);
2269 ctx->disconnect_task = GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_UNIT_FOREVER_REL,
2270 &malicious_disconnect_task, ctx);
2274 * Select randomly from set of known peers,
2275 * set the desired number of peers to the
2276 * proper malicious types.
2279 setup_malicious_peers (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
2281 struct MaliciousContext *ctx;
2283 uint32_t temp_daemon;
2285 for (i = 0; i < malicious_getters; i++)
2287 ctx = GNUNET_malloc(sizeof(struct MaliciousContext));
2288 temp_daemon = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers);
2289 ctx->daemon = GNUNET_TESTING_daemon_get(pg, temp_daemon);
2290 ctx->malicious_type = GNUNET_MESSAGE_TYPE_DHT_MALICIOUS_GET;
2291 GNUNET_SCHEDULER_add_now (&set_malicious, ctx);
2295 for (i = 0; i < malicious_putters; i++)
2297 ctx = GNUNET_malloc(sizeof(struct MaliciousContext));
2298 temp_daemon = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers);
2299 ctx->daemon = GNUNET_TESTING_daemon_get(pg, temp_daemon);
2300 ctx->malicious_type = GNUNET_MESSAGE_TYPE_DHT_MALICIOUS_PUT;
2301 GNUNET_SCHEDULER_add_now (&set_malicious, ctx);
2305 for (i = 0; i < malicious_droppers; i++)
2307 ctx = GNUNET_malloc(sizeof(struct MaliciousContext));
2308 temp_daemon = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers);
2309 ctx->daemon = GNUNET_TESTING_daemon_get(pg, temp_daemon);
2310 ctx->malicious_type = GNUNET_MESSAGE_TYPE_DHT_MALICIOUS_DROP;
2311 GNUNET_SCHEDULER_add_now (&set_malicious, ctx);
2315 * If we have any malicious peers to set up,
2316 * the malicious callback should call continue_gets_and_puts
2318 if (malicious_getters + malicious_putters + malicious_droppers > 0)
2320 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Giving malicious set tasks some time before starting testing!\n");
2321 die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, (malicious_getters + malicious_putters + malicious_droppers) * 2),
2322 &end_badly, "from set malicious");
2324 else /* Otherwise, continue testing */
2326 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Scheduling continue_puts_and_gets now!\n");
2327 GNUNET_SCHEDULER_add_now (&continue_puts_and_gets, NULL);
2332 * This function is called whenever a connection attempt is finished between two of
2333 * the started peers (started with GNUNET_TESTING_daemons_start). The total
2334 * number of times this function is called should equal the number returned
2335 * from the GNUNET_TESTING_connect_topology call.
2337 * The emsg variable is NULL on success (peers connected), and non-NULL on
2338 * failure (peers failed to connect).
2341 topology_callback (void *cls,
2342 const struct GNUNET_PeerIdentity *first,
2343 const struct GNUNET_PeerIdentity *second,
2345 const struct GNUNET_CONFIGURATION_Handle *first_cfg,
2346 const struct GNUNET_CONFIGURATION_Handle *second_cfg,
2347 struct GNUNET_TESTING_Daemon *first_daemon,
2348 struct GNUNET_TESTING_Daemon *second_daemon,
2351 struct TopologyIteratorContext *topo_ctx;
2354 total_connections++;
2356 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "connected peer %s to peer %s, distance %u\n",
2357 first_daemon->shortname,
2358 second_daemon->shortname,
2364 failed_connections++;
2365 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Failed to connect peer %s to peer %s with error :\n%s\n",
2366 first_daemon->shortname,
2367 second_daemon->shortname, emsg);
2369 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Failed to connect peer %s to peer %s with error :\n%s\n",
2370 first_daemon->shortname,
2371 second_daemon->shortname, emsg);
2375 GNUNET_assert(peer_connect_meter != NULL);
2376 if (GNUNET_YES == update_meter(peer_connect_meter))
2379 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2380 "Created %d total connections, which is our target number! Starting next phase of testing.\n",
2383 if (failed_connections > 0)
2384 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "While connecting, had %u failed connections.\n", failed_connections);
2385 if (dhtlog_handle != NULL)
2387 dhtlog_handle->update_connections (total_connections);
2388 dhtlog_handle->insert_topology(expected_connections);
2391 GNUNET_SCHEDULER_cancel (die_task);
2392 /*die_task = GNUNET_SCHEDULER_add_delayed (DEFAULT_TIMEOUT,
2393 &end_badly, "from setup puts/gets");*/
2394 if ((dhtlog_handle != NULL) && (settle_time > 0))
2396 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
2397 topo_ctx->cont = &setup_malicious_peers;
2398 topo_ctx->peers_seen = GNUNET_CONTAINER_multihashmap_create(num_peers);
2399 //topo_ctx->cont = &continue_puts_and_gets;
2400 GNUNET_SCHEDULER_add_now(&capture_current_topology, topo_ctx);
2404 GNUNET_SCHEDULER_add_now(&setup_malicious_peers, NULL);
2405 /*GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, settle_time),
2406 &continue_puts_and_gets, NULL);*/
2409 else if (total_connections + failed_connections == expected_connections)
2411 GNUNET_SCHEDULER_cancel (die_task);
2412 die_task = GNUNET_SCHEDULER_add_now (&end_badly, "from topology_callback (too many failed connections)");
2417 peers_started_callback (void *cls,
2418 const struct GNUNET_PeerIdentity *id,
2419 const struct GNUNET_CONFIGURATION_Handle *cfg,
2420 struct GNUNET_TESTING_Daemon *d, const char *emsg)
2424 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Failed to start daemon with error: `%s'\n",
2428 GNUNET_assert (id != NULL);
2431 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Started daemon %llu out of %llu\n",
2432 (num_peers - peers_left) + 1, num_peers);
2437 if (GNUNET_YES == update_meter(peer_start_meter))
2440 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2441 "All %d daemons started, now connecting peers!\n",
2444 GNUNET_SCHEDULER_cancel (die_task);
2446 expected_connections = UINT_MAX;
2447 if ((pg != NULL) && (peers_left == 0))
2449 expected_connections = GNUNET_TESTING_connect_topology (pg, connect_topology, connect_topology_option, connect_topology_option_modifier, NULL, NULL);
2451 peer_connect_meter = create_meter(expected_connections, "Peer connection ", GNUNET_YES);
2452 fprintf(stderr, "Have %d expected connections\n", expected_connections);
2455 if (expected_connections == GNUNET_SYSERR)
2457 die_task = GNUNET_SCHEDULER_add_now (&end_badly, "from connect topology (bad return)");
2460 die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, DEFAULT_CONNECT_TIMEOUT * expected_connections),
2461 &end_badly, "from connect topology (timeout)");
2470 peers_left = num_peers; /* Reset counter */
2471 if (GNUNET_TESTING_create_topology (pg, topology, blacklist_topology, blacklist_transports) != GNUNET_SYSERR)
2474 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2475 "Topology set up, now starting peers!\n");
2477 GNUNET_TESTING_daemons_continue_startup(pg);
2481 GNUNET_SCHEDULER_cancel (die_task);
2482 die_task = GNUNET_SCHEDULER_add_now (&end_badly, "from create topology (bad return)");
2484 GNUNET_free_non_null(blacklist_transports);
2485 GNUNET_SCHEDULER_cancel (die_task);
2486 die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(seconds_per_peer_start, num_peers),
2487 &end_badly, "from continue startup (timeout)");
2491 * Callback indicating that the hostkey was created for a peer.
2494 * @param id the peer identity
2495 * @param d the daemon handle (pretty useless at this point, remove?)
2496 * @param emsg non-null on failure
2499 hostkey_callback (void *cls,
2500 const struct GNUNET_PeerIdentity *id,
2501 struct GNUNET_TESTING_Daemon *d,
2506 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Hostkey callback received error: %s\n", emsg);
2510 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2511 "Hostkey (%d/%d) created for peer `%s'\n",
2512 num_peers - peers_left, num_peers, GNUNET_i2s(id));
2516 if (GNUNET_YES == update_meter(hostkey_meter))
2519 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2520 "All %d hostkeys created, now creating topology!\n",
2523 GNUNET_SCHEDULER_cancel (die_task);
2524 /* Set up task in case topology creation doesn't finish
2525 * within a reasonable amount of time */
2526 die_task = GNUNET_SCHEDULER_add_delayed (DEFAULT_TOPOLOGY_TIMEOUT,
2527 &end_badly, "from create_topology");
2528 GNUNET_SCHEDULER_add_now(&create_topology, NULL);
2537 const char *cfgfile, const struct GNUNET_CONFIGURATION_Handle *cfg)
2540 struct GNUNET_DHTLOG_TrialInfo trial_info;
2541 struct GNUNET_TESTING_Host *hosts;
2542 struct GNUNET_TESTING_Host *temphost;
2543 struct GNUNET_TESTING_Host *tempnext;
2545 char *connect_topology_str;
2546 char *blacklist_topology_str;
2547 char *connect_topology_option_str;
2548 char *connect_topology_option_modifier_string;
2550 char *topology_percentage_str;
2551 float topology_percentage;
2552 char *topology_probability_str;
2554 float topology_probability;
2555 unsigned long long temp_config_number;
2556 unsigned long long trial_to_run;
2559 int strict_kademlia;
2563 char *churn_filename;
2570 rounds_finished = 0;
2571 memset(&trial_info, 0, sizeof(struct GNUNET_DHTLOG_TrialInfo));
2572 /* Get path from configuration file */
2573 if (GNUNET_YES != GNUNET_CONFIGURATION_get_value_string(cfg, "paths", "servicehome", &test_directory))
2579 /* Get number of peers to start from configuration */
2580 if (GNUNET_SYSERR ==
2581 GNUNET_CONFIGURATION_get_value_number (cfg, "testing", "num_peers",
2584 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2585 "Number of peers must be specified in section %s option %s\n", "TESTING", "NUM_PEERS");
2587 GNUNET_assert(num_peers > 0 && num_peers < ULONG_MAX);
2590 * Get DHT specific testing options.
2592 if ((GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht_testing", "mysql_logging")) ||
2593 (GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht_testing", "mysql_logging_extended")))
2595 dhtlog_handle = GNUNET_DHTLOG_connect(cfg);
2596 if (dhtlog_handle == NULL)
2598 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2599 "Could not connect to mysql server for logging, will NOT log dht operations!");
2605 stop_closest = GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht", "stop_on_closest");
2606 if (stop_closest == GNUNET_SYSERR)
2607 stop_closest = GNUNET_NO;
2609 stop_found = GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht", "stop_found");
2610 if (stop_found == GNUNET_SYSERR)
2611 stop_found = GNUNET_NO;
2613 strict_kademlia = GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht", "strict_kademlia");
2614 if (strict_kademlia == GNUNET_SYSERR)
2615 strict_kademlia = GNUNET_NO;
2618 GNUNET_CONFIGURATION_get_value_string (cfg, "dht_testing", "comment",
2620 trialmessage = NULL;
2623 /** Check for a churn file to do churny simulation */
2625 GNUNET_CONFIGURATION_get_value_string(cfg, "dht_testing", "churn_file",
2628 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Reading churn data from %s\n", churn_filename);
2629 if (GNUNET_OK != GNUNET_DISK_file_test (churn_filename))
2631 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Error reading churn file!\n");
2632 GNUNET_free_non_null(trialmessage);
2633 GNUNET_free(churn_filename);
2636 if ((0 != STAT (churn_filename, &frstat)) || (frstat.st_size == 0))
2638 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
2639 "Could not open file specified for churn data, ending test!");
2641 GNUNET_free_non_null(trialmessage);
2642 GNUNET_free(churn_filename);
2646 churn_data = GNUNET_malloc_large (frstat.st_size);
2647 GNUNET_assert(churn_data != NULL);
2648 if (frstat.st_size !=
2649 GNUNET_DISK_fn_read (churn_filename, churn_data, frstat.st_size))
2651 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
2652 "Could not read file %s specified for churn, ending test!", churn_filename);
2653 GNUNET_free (churn_filename);
2654 GNUNET_free (churn_data);
2655 GNUNET_free_non_null(trialmessage);
2659 GNUNET_free_non_null(churn_filename);
2663 /* Read the first line */
2664 while (count < frstat.st_size)
2667 if (((churn_data[count] == '\n')) && (buf != &churn_data[count]))
2669 churn_data[count] = '\0';
2670 if (1 != sscanf(buf, "%u", &churn_rounds))
2672 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Failed to read number of rounds from churn file, ending test!\n");
2674 GNUNET_free_non_null(trialmessage);
2675 GNUNET_free_non_null(churn_data);
2678 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Read %u rounds from churn file\n", churn_rounds);
2679 buf = &churn_data[count + 1];
2680 churn_array = GNUNET_malloc(sizeof(unsigned int) * churn_rounds);
2681 break; /* Done with this part */
2685 if (GNUNET_OK != GNUNET_CONFIGURATION_get_value_number(cfg, "dht_testing", "churns_per_round", &churns_per_round))
2687 churns_per_round = (unsigned long long)churn_rounds;
2691 while ((count < frstat.st_size) && (line_number < churn_rounds))
2694 if (((churn_data[count] == '\n')) && (buf != &churn_data[count]))
2696 churn_data[count] = '\0';
2698 ret = sscanf(buf, "%u", &churn_array[line_number]);
2701 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Read %u peers in round %u\n", churn_array[line_number], line_number);
2706 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Error reading line `%s' in hostfile\n", buf);
2707 buf = &churn_data[count + 1];
2710 buf = &churn_data[count + 1];
2712 else if (churn_data[count] == '\n') /* Blank line */
2713 buf = &churn_data[count + 1];
2716 GNUNET_free_non_null(churn_data);
2718 /** Check for a hostfile containing user@host:port triples */
2720 GNUNET_CONFIGURATION_get_value_string (cfg, "testing", "hostfile",
2727 if (hostfile != NULL)
2729 if (GNUNET_OK != GNUNET_DISK_file_test (hostfile))
2730 GNUNET_DISK_fn_write (hostfile, NULL, 0, GNUNET_DISK_PERM_USER_READ
2731 | GNUNET_DISK_PERM_USER_WRITE);
2732 if ((0 != STAT (hostfile, &frstat)) || (frstat.st_size == 0))
2734 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
2735 "Could not open file specified for host list, ending test!");
2737 GNUNET_free_non_null(trialmessage);
2738 GNUNET_free(hostfile);
2742 data = GNUNET_malloc_large (frstat.st_size);
2743 GNUNET_assert(data != NULL);
2744 if (frstat.st_size !=
2745 GNUNET_DISK_fn_read (hostfile, data, frstat.st_size))
2747 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
2748 "Could not read file %s specified for host list, ending test!", hostfile);
2749 GNUNET_free (hostfile);
2751 GNUNET_free_non_null(trialmessage);
2755 GNUNET_free_non_null(hostfile);
2759 while (count < frstat.st_size)
2762 /* if (((data[count] == '\n') || (data[count] == '\0')) && (buf != &data[count]))*/
2763 if (((data[count] == '\n')) && (buf != &data[count]))
2766 temphost = GNUNET_malloc(sizeof(struct GNUNET_TESTING_Host));
2767 ret = sscanf(buf, "%a[a-zA-Z0-9]@%a[a-zA-Z0-9.]:%hd", &temphost->username, &temphost->hostname, &temphost->port);
2770 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Successfully read host %s, port %d and user %s from file\n", temphost->hostname, temphost->port, temphost->username);
2774 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Error reading line `%s' in hostfile\n", buf);
2775 GNUNET_free(temphost);
2776 buf = &data[count + 1];
2779 /* temphost->hostname = buf; */
2780 temphost->next = hosts;
2782 buf = &data[count + 1];
2784 else if ((data[count] == '\n') || (data[count] == '\0'))
2785 buf = &data[count + 1];
2788 GNUNET_free_non_null(data);
2790 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "malicious_getters",
2791 &malicious_getters))
2792 malicious_getters = 0;
2795 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "malicious_putters",
2796 &malicious_putters))
2797 malicious_putters = 0;
2800 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "malicious_droppers",
2801 &malicious_droppers))
2802 malicious_droppers = 0;
2805 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "settle_time",
2809 if (GNUNET_SYSERR ==
2810 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "num_puts",
2812 num_puts = num_peers;
2814 if (GNUNET_SYSERR ==
2815 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "put_replication",
2817 put_replication = DEFAULT_PUT_REPLICATION;
2819 if (GNUNET_SYSERR ==
2820 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "num_gets",
2822 num_gets = num_peers;
2824 if (GNUNET_SYSERR ==
2825 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "get_replication",
2827 get_replication = DEFAULT_GET_REPLICATION;
2830 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "find_peer_delay",
2831 &temp_config_number))
2832 find_peer_delay = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_config_number);
2834 find_peer_delay = DEFAULT_FIND_PEER_DELAY;
2837 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "concurrent_find_peers",
2838 &temp_config_number))
2839 max_outstanding_find_peers = temp_config_number;
2841 max_outstanding_find_peers = DEFAULT_MAX_OUTSTANDING_FIND_PEERS;
2844 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "get_timeout",
2845 &temp_config_number))
2846 get_timeout = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_config_number);
2848 get_timeout = DEFAULT_GET_TIMEOUT;
2851 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "concurrent_puts",
2852 &temp_config_number))
2853 max_outstanding_puts = temp_config_number;
2855 max_outstanding_puts = DEFAULT_MAX_OUTSTANDING_PUTS;
2858 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "concurrent_gets",
2859 &temp_config_number))
2860 max_outstanding_gets = temp_config_number;
2862 max_outstanding_gets = DEFAULT_MAX_OUTSTANDING_GETS;
2865 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "timeout",
2866 &temp_config_number))
2867 all_get_timeout = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_config_number);
2869 all_get_timeout.rel_value = get_timeout.rel_value * num_gets;
2872 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "get_delay",
2873 &temp_config_number))
2874 get_delay = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_config_number);
2876 get_delay = DEFAULT_GET_DELAY;
2879 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "put_delay",
2880 &temp_config_number))
2881 put_delay = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_config_number);
2883 put_delay = DEFAULT_PUT_DELAY;
2886 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "peer_start_timeout",
2887 &temp_config_number))
2888 seconds_per_peer_start = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_config_number);
2890 seconds_per_peer_start = DEFAULT_SECONDS_PER_PEER_START;
2893 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "data_size",
2894 &temp_config_number))
2895 test_data_size = temp_config_number;
2897 test_data_size = DEFAULT_TEST_DATA_SIZE;
2900 * Get testing related options.
2902 if (GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno(cfg, "DHT_TESTING", "REPLICATE_SAME"))
2903 replicate_same = GNUNET_YES;
2906 * Get testing related options.
2908 if (GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno(cfg, "DHT_TESTING", "GET_FROM_SAME"))
2909 get_from_same = GNUNET_YES;
2912 if (GNUNET_NO == GNUNET_CONFIGURATION_get_value_time (cfg, "DHT_TESTING",
2913 "MALICIOUS_GET_FREQUENCY",
2914 &malicious_get_frequency))
2915 malicious_get_frequency = DEFAULT_MALICIOUS_GET_FREQUENCY;
2918 if (GNUNET_NO == GNUNET_CONFIGURATION_get_value_time (cfg, "DHT_TESTING",
2919 "MALICIOUS_PUT_FREQUENCY",
2920 &malicious_put_frequency))
2921 malicious_put_frequency = DEFAULT_MALICIOUS_PUT_FREQUENCY;
2924 /* The normal behavior of the DHT is to do find peer requests
2925 * on its own. Only if this is explicitly turned off should
2926 * the testing driver issue find peer requests (even though
2927 * this is likely the default when testing).
2930 GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht",
2933 do_find_peer = GNUNET_YES;
2937 GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht",
2940 in_dht_replication = GNUNET_YES;
2943 if (GNUNET_YES != GNUNET_CONFIGURATION_get_value_number (cfg, "DHT_TESTING",
2950 if (GNUNET_YES == GNUNET_CONFIGURATION_get_value_number (cfg, "DHT_TESTING",
2952 &temp_config_number))
2954 find_peer_delay = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_config_number);
2957 find_peer_delay = DEFAULT_FIND_PEER_DELAY;
2959 if (GNUNET_YES != GNUNET_CONFIGURATION_get_value_number(cfg, "DHT_TESTING", "ROUND_DELAY", &round_delay))
2962 if (GNUNET_NO == GNUNET_CONFIGURATION_get_value_number (cfg, "DHT_TESTING",
2963 "OUTSTANDING_FIND_PEERS",
2964 &max_outstanding_find_peers))
2965 max_outstanding_find_peers = DEFAULT_MAX_OUTSTANDING_FIND_PEERS;
2967 if (GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht", "strict_kademlia"))
2968 max_outstanding_find_peers = max_outstanding_find_peers * 1;
2970 find_peer_offset = GNUNET_TIME_relative_divide (find_peer_delay, max_outstanding_find_peers);
2972 if (GNUNET_SYSERR ==
2973 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "num_rounds",
2979 if ((GNUNET_SYSERR ==
2980 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "target_total_connections",
2981 &target_total_connections)) ||
2982 (target_total_connections == 0))
2984 target_total_connections = connection_estimate(num_peers, DEFAULT_BUCKET_SIZE);
2987 topology_str = NULL;
2989 GNUNET_CONFIGURATION_get_value_string(cfg, "testing", "topology",
2990 &topology_str)) && (GNUNET_NO == GNUNET_TESTING_topology_get(&topology, topology_str)))
2992 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2993 "Invalid topology `%s' given for section %s option %s\n", topology_str, "TESTING", "TOPOLOGY");
2994 topology = GNUNET_TESTING_TOPOLOGY_CLIQUE; /* Defaults to NONE, so set better default here */
2998 GNUNET_CONFIGURATION_get_value_string (cfg, "testing", "percentage",
2999 &topology_percentage_str))
3000 topology_percentage = 0.5;
3003 topology_percentage = atof (topology_percentage_str);
3004 GNUNET_free(topology_percentage_str);
3008 GNUNET_CONFIGURATION_get_value_string (cfg, "testing", "probability",
3009 &topology_probability_str))
3010 topology_probability = 0.5;
3013 topology_probability = atof (topology_probability_str);
3014 GNUNET_free(topology_probability_str);
3018 GNUNET_CONFIGURATION_get_value_string(cfg, "testing", "connect_topology",
3019 &connect_topology_str)) && (GNUNET_NO == GNUNET_TESTING_topology_get(&connect_topology, connect_topology_str)))
3021 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
3022 "Invalid connect topology `%s' given for section %s option %s\n", connect_topology_str, "TESTING", "CONNECT_TOPOLOGY");
3024 GNUNET_free_non_null(connect_topology_str);
3027 GNUNET_CONFIGURATION_get_value_string(cfg, "testing", "connect_topology_option",
3028 &connect_topology_option_str)) && (GNUNET_NO == GNUNET_TESTING_topology_option_get(&connect_topology_option, connect_topology_option_str)))
3030 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
3031 "Invalid connect topology option `%s' given for section %s option %s\n", connect_topology_option_str, "TESTING", "CONNECT_TOPOLOGY_OPTION");
3032 connect_topology_option = GNUNET_TESTING_TOPOLOGY_OPTION_ALL; /* Defaults to NONE, set to ALL */
3034 GNUNET_free_non_null(connect_topology_option_str);
3037 GNUNET_CONFIGURATION_get_value_string (cfg, "testing", "connect_topology_option_modifier",
3038 &connect_topology_option_modifier_string))
3040 if (sscanf(connect_topology_option_modifier_string, "%lf", &connect_topology_option_modifier) != 1)
3042 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
3043 _("Invalid value `%s' for option `%s' in section `%s': expected float\n"),
3044 connect_topology_option_modifier_string,
3045 "connect_topology_option_modifier",
3048 GNUNET_free (connect_topology_option_modifier_string);
3051 if (GNUNET_YES != GNUNET_CONFIGURATION_get_value_string (cfg, "testing", "blacklist_transports",
3052 &blacklist_transports))
3053 blacklist_transports = NULL;
3056 GNUNET_CONFIGURATION_get_value_string(cfg, "testing", "blacklist_topology",
3057 &blacklist_topology_str)) &&
3058 (GNUNET_NO == GNUNET_TESTING_topology_get(&blacklist_topology, blacklist_topology_str)))
3060 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
3061 "Invalid topology `%s' given for section %s option %s\n", topology_str, "TESTING", "BLACKLIST_TOPOLOGY");
3063 GNUNET_free_non_null(topology_str);
3064 GNUNET_free_non_null(blacklist_topology_str);
3066 /* Set peers_left so we know when all peers started */
3067 peers_left = num_peers;
3070 /* Set up a task to end testing if peer start fails */
3071 die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(seconds_per_peer_start, num_peers),
3072 &end_badly, "didn't generate all hostkeys within allowed startup time!");
3074 if (dhtlog_handle == NULL)
3075 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
3076 "dhtlog_handle is NULL!");
3078 trial_info.other_identifier = (unsigned int)trial_to_run;
3079 trial_info.num_nodes = peers_left;
3080 trial_info.topology = topology;
3081 trial_info.blacklist_topology = blacklist_topology;
3082 trial_info.connect_topology = connect_topology;
3083 trial_info.connect_topology_option = connect_topology_option;
3084 trial_info.connect_topology_option_modifier = connect_topology_option_modifier;
3085 trial_info.topology_percentage = topology_percentage;
3086 trial_info.topology_probability = topology_probability;
3087 trial_info.puts = num_puts;
3088 trial_info.gets = num_gets;
3089 trial_info.concurrent = max_outstanding_gets;
3090 trial_info.settle_time = settle_time;
3091 trial_info.num_rounds = 1;
3092 trial_info.malicious_getters = malicious_getters;
3093 trial_info.malicious_putters = malicious_putters;
3094 trial_info.malicious_droppers = malicious_droppers;
3095 trial_info.malicious_get_frequency = malicious_get_frequency.rel_value;
3096 trial_info.malicious_put_frequency = malicious_put_frequency.rel_value;
3097 trial_info.stop_closest = stop_closest;
3098 trial_info.stop_found = stop_found;
3099 trial_info.strict_kademlia = strict_kademlia;
3101 if (trialmessage != NULL)
3102 trial_info.message = trialmessage;
3104 trial_info.message = "";
3106 if (dhtlog_handle != NULL)
3107 dhtlog_handle->insert_trial(&trial_info);
3109 GNUNET_free_non_null(trialmessage);
3111 hostkey_meter = create_meter(peers_left, "Hostkeys created ", GNUNET_YES);
3112 peer_start_meter = create_meter(peers_left, "Peers started ", GNUNET_YES);
3114 put_meter = create_meter(num_puts, "Puts completed ", GNUNET_YES);
3115 get_meter = create_meter(num_gets, "Gets completed ", GNUNET_YES);
3116 pg = GNUNET_TESTING_daemons_start (cfg,
3118 GNUNET_TIME_relative_multiply(seconds_per_peer_start, num_peers),
3119 &hostkey_callback, NULL,
3120 &peers_started_callback, NULL,
3121 &topology_callback, NULL,
3124 while (temphost != NULL)
3126 tempnext = temphost->next;
3127 GNUNET_free (temphost->username);
3128 GNUNET_free (temphost->hostname);
3129 GNUNET_free (temphost);
3130 temphost = tempnext;
3135 main (int argc, char *argv[])
3138 struct GNUNET_GETOPT_CommandLineOption options[] = {
3139 GNUNET_GETOPT_OPTION_END
3142 ret = GNUNET_PROGRAM_run (argc,
3143 argv, "gnunet-dht-driver", "nohelp",
3144 options, &run, &ok);
3146 if (ret != GNUNET_OK)
3148 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "`gnunet-dht-driver': Failed with error code %d\n", ret);
3152 * Need to remove base directory, subdirectories taken care
3153 * of by the testing framework.
3155 if (GNUNET_DISK_directory_remove (test_directory) != GNUNET_OK)
3157 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Failed to remove testing directory %s\n", test_directory);
3162 /* end of gnunet-dht-driver.c */