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 /* Specific DEBUG hack, do not use normally (may leak memory, segfault, or eat children.) */
40 #define ONLY_TESTING GNUNET_NO
43 #define VERBOSE GNUNET_NO
45 /* Timeout for entire driver to run */
46 #define DEFAULT_TIMEOUT GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MINUTES, 5)
48 /* Timeout for waiting for (individual) replies to get requests */
49 #define DEFAULT_GET_TIMEOUT GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 10)
51 #define DEFAULT_TOPOLOGY_CAPTURE_TIMEOUT GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 90)
53 /* Timeout for waiting for gets to be sent to the service */
54 #define DEFAULT_GET_DELAY GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 10)
56 /* Timeout for waiting for puts to be sent to the service */
57 #define DEFAULT_PUT_DELAY GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 10)
59 /* Time to allow a find peer request to take */
60 #define DEFAULT_FIND_PEER_DELAY GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 40)
62 /* Time to wait for all peers disconnected due to to churn to actually be removed from system */
63 #define DEFAULT_PEER_DISCONNECT_TIMEOUT GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MINUTES, 5)
65 #define DEFAULT_SECONDS_PER_PEER_START GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 45)
67 #define DEFAULT_TEST_DATA_SIZE 8
69 #define DEFAULT_BUCKET_SIZE 4
71 /* If more than this many peers are added, slow down sending */
72 #define MAX_FIND_PEER_CUTOFF 2000
74 /* If less than this many peers are added, speed up sending */
75 #define MIN_FIND_PEER_CUTOFF 500
77 /* How often (in seconds) to print out connection information */
78 #define CONN_UPDATE_DURATION 10
80 #define DEFAULT_MAX_OUTSTANDING_PUTS 10
82 #define DEFAULT_MAX_OUTSTANDING_FIND_PEERS 64
84 #define DEFAULT_FIND_PEER_OFFSET GNUNET_TIME_relative_divide (DEFAULT_FIND_PEER_DELAY, DEFAULT_MAX_OUTSTANDING_FIND_PEERS)
86 #define DEFAULT_MAX_OUTSTANDING_GETS 10
88 #define DEFAULT_CONNECT_TIMEOUT 60
90 #define DEFAULT_TOPOLOGY_TIMEOUT GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MINUTES, 8)
92 #define DEFAULT_RECONNECT_ATTEMPTS 8
95 * Default frequency for sending malicious get messages
97 #define DEFAULT_MALICIOUS_GET_FREQUENCY GNUNET_TIME_UNIT_SECONDS
100 * Default frequency for sending malicious put messages
102 #define DEFAULT_MALICIOUS_PUT_FREQUENCY GNUNET_TIME_UNIT_SECONDS
106 struct MaliciousContext
109 * Handle to DHT service (via the API)
111 struct GNUNET_DHT_Handle *dht_handle;
114 * Handle to the peer daemon
116 struct GNUNET_TESTING_Daemon *daemon;
119 * Task for disconnecting DHT handles
121 GNUNET_SCHEDULER_TaskIdentifier disconnect_task;
124 * What type of malicious to set this peer to.
131 /* This is a linked list */
132 struct TestFindPeer *next;
134 /* Handle to the bigger context */
135 struct FindPeerContext *find_peer_context;
138 * Handle to the peer's DHT service (via the API)
140 struct GNUNET_DHT_Handle *dht_handle;
143 * Handle to the peer daemon
145 struct GNUNET_TESTING_Daemon *daemon;
148 * Task for disconnecting DHT handles
150 GNUNET_SCHEDULER_TaskIdentifier disconnect_task;
153 struct TestPutContext
155 /* This is a linked list */
156 struct TestPutContext *next;
159 * Handle to the first peers DHT service (via the API)
161 struct GNUNET_DHT_Handle *dht_handle;
164 * Handle to the PUT peer daemon
166 struct GNUNET_TESTING_Daemon *daemon;
169 * Identifier for this PUT
174 * Task for disconnecting DHT handles
176 GNUNET_SCHEDULER_TaskIdentifier disconnect_task;
179 struct TestGetContext
181 /* This is a linked list */
182 struct TestGetContext *next;
185 * Handle to the first peers DHT service (via the API)
187 struct GNUNET_DHT_Handle *dht_handle;
190 * Handle for the DHT get request
192 struct GNUNET_DHT_GetHandle *get_handle;
195 * Handle to the GET peer daemon
197 struct GNUNET_TESTING_Daemon *daemon;
200 * Identifier for this GET
205 * Task for disconnecting DHT handles (and stopping GET)
207 GNUNET_SCHEDULER_TaskIdentifier disconnect_task;
210 * Whether or not this request has been fulfilled already.
216 * Simple struct to keep track of progress, and print a
217 * nice little percentage meter for long running tasks.
227 unsigned int completed;
231 char *startup_string;
235 * Linked list of information for populating statistics
236 * before ending trial.
238 struct StatisticsIteratorContext
240 const struct GNUNET_PeerIdentity *peer;
241 unsigned int stat_routes;
242 unsigned int stat_route_forwards;
243 unsigned int stat_results;
244 unsigned int stat_results_to_client;
245 unsigned int stat_result_forwards;
246 unsigned int stat_gets;
247 unsigned int stat_puts;
248 unsigned int stat_puts_inserted;
249 unsigned int stat_find_peer;
250 unsigned int stat_find_peer_start;
251 unsigned int stat_get_start;
252 unsigned int stat_put_start;
253 unsigned int stat_find_peer_reply;
254 unsigned int stat_get_reply;
255 unsigned int stat_find_peer_answer;
256 unsigned int stat_get_response_start;
260 * Context for getting a topology, logging it, and continuing
261 * on with some next operation.
263 struct TopologyIteratorContext
265 unsigned int total_iterations;
266 unsigned int current_iteration;
267 unsigned int total_connections;
268 unsigned int total_peers;
269 struct GNUNET_CONTAINER_MultiHashMap *peers_seen;
270 struct GNUNET_PeerIdentity *peer;
271 GNUNET_SCHEDULER_Task cont;
273 struct GNUNET_TIME_Relative timeout;
279 /** Node in the heap */
280 struct GNUNET_CONTAINER_HeapNode *heap_node;
282 /** Peer the count refers to */
283 struct GNUNET_PeerIdentity peer_id;
285 /** Count of connections this peer has */
290 * Context for sending out find peer requests.
292 struct FindPeerContext
295 * How long to send find peer requests, once the settle time
296 * is over don't send any more out!
298 struct GNUNET_TIME_Absolute endtime;
301 * Number of connections in the current topology
302 * (after this round of find peer requests has ended).
304 unsigned int current_peers;
307 * Number of connections in the current topology
308 * (before this round of find peer requests started).
310 unsigned int previous_peers;
313 * Number of find peer requests we have currently
316 unsigned int outstanding;
319 * Number of find peer requests to send in this round.
324 * Number of find peer requests sent last time around.
326 unsigned int last_sent;
329 * Hashmap of peers in the current topology, value
330 * is a PeerCount, with the number of connections
333 struct GNUNET_CONTAINER_MultiHashMap *peer_hash;
336 * Min heap which orders values in the peer_hash for
339 struct GNUNET_CONTAINER_Heap *peer_min_heap;
342 * Callback for counting the peers in the current topology.
344 GNUNET_TESTING_NotifyTopology count_peers_cb;
350 * Next full round (puts + gets).
355 * Next round of gets.
360 * Next round of puts.
365 * Next round of churn.
375 * How long to try to connect two peers.
377 struct GNUNET_TIME_Relative connect_timeout;
380 * How many times to re-attempt connecting two peers.
382 static unsigned long long connect_attempts;
385 * Timeout to let all GET requests happen.
387 static struct GNUNET_TIME_Relative all_get_timeout;
392 static struct GNUNET_TIME_Relative get_timeout;
395 * Time to allow for GET requests to be sent to service.
397 static struct GNUNET_TIME_Relative get_delay;
400 * Time to allow for PUT requests to be sent to service.
402 static struct GNUNET_TIME_Relative put_delay;
405 * Delay between sending find peer requests (if
406 * handled by the driver, no effect if sent by service).
408 static struct GNUNET_TIME_Relative find_peer_delay;
411 * Time between find peer requests
412 * (find_peer_delay / max_outstanding_find_peer)
414 static struct GNUNET_TIME_Relative find_peer_offset;
417 * How many seconds to allow each peer to start.
419 static struct GNUNET_TIME_Relative seconds_per_peer_start;
422 * At what time did we start the connection process.
424 static struct GNUNET_TIME_Absolute connect_start_time;
427 * What was the last time we updated connection/second information.
429 static struct GNUNET_TIME_Absolute connect_last_time;
432 * Boolean value, should the driver issue find peer requests
433 * (GNUNET_YES) or should it be left to the service (GNUNET_NO)
435 static unsigned int do_find_peer;
439 * Are we currently trying to connect two peers repeatedly?
441 static unsigned int repeat_connect_mode;
444 * Task for repeating connects.
446 GNUNET_SCHEDULER_TaskIdentifier repeat_connect_task;
448 struct GNUNET_TESTING_Daemon *repeat_connect_peer1;
449 struct GNUNET_TESTING_Daemon *repeat_connect_peer2;
453 * Boolean value, should replication be done by the dht
454 * service (GNUNET_YES) or by the driver (GNUNET_NO)
456 static unsigned int in_dht_replication;
459 * Size of test data to insert/retrieve during testing.
461 static unsigned long long test_data_size = DEFAULT_TEST_DATA_SIZE;
464 * Maximum number of concurrent connections to peers.
466 static unsigned long long max_outstanding_connections;
469 * Maximum number of concurrent ssh instances to peers.
471 static unsigned long long max_concurrent_ssh;
474 * Maximum number of concurrent PUT requests.
476 static unsigned long long max_outstanding_puts = DEFAULT_MAX_OUTSTANDING_PUTS;
479 * Maximum number of concurrent GET requests.
481 static unsigned long long max_outstanding_gets = DEFAULT_MAX_OUTSTANDING_GETS;
484 * Number of nodes issuing malicious GET messages.
486 static unsigned long long malicious_getters;
489 * Maximum number of concurrent find peer messages being sent.
491 static unsigned long long max_outstanding_find_peers;
494 * Number of nodes issuing malicious PUT messages.
496 static unsigned long long malicious_putters;
499 * Time (in seconds) to delay between rounds.
501 static unsigned long long round_delay;
504 * How many malicious droppers to seed in the network.
506 static unsigned long long malicious_droppers;
509 * Bloom filter to restrict malicious nodes chosen.
511 struct GNUNET_CONTAINER_BloomFilter *malicious_bloom;
514 * Whether malicious droppers should be chosen based on proximity to a key.
516 static int malicious_sybil;
519 * Target for the malicious sybil nodes (choose the closest to this key).
521 static GNUNET_HashCode sybil_target;
524 * How often to send malicious GET messages.
526 static struct GNUNET_TIME_Relative malicious_get_frequency;
529 * How often to send malicious PUT messages.
531 static struct GNUNET_TIME_Relative malicious_put_frequency;
534 * How long to send find peer requests.
536 static unsigned long long settle_time;
539 * Handle to the dhtlog service.
541 static struct GNUNET_DHTLOG_Handle *dhtlog_handle;
544 * Replication value for GET requests.
546 static unsigned long long get_replication;
549 * Replication value for PUT requests.
551 static unsigned long long put_replication;
554 * If GNUNET_YES, insert data at the same peers every time.
555 * Otherwise, choose a new random peer to insert at each time.
557 static unsigned int replicate_same;
560 * If GNUNET_YES, issue GET requests at the same peers every time.
561 * Otherwise, choose a new random peer/data combination to search
564 static unsigned int get_from_same;
567 * Should malicious peers be set after allowing for settle time?
568 * Default is to set them malicious after initial connection setup.
570 static unsigned int malicious_after_settle;
573 * Number of rounds for testing (PUTS + GETS)
575 static unsigned long long total_rounds;
578 * Target number of connections (will stop sending find peer
579 * messages when this number is exceeded)
581 static unsigned long long target_total_connections;
584 * Number of rounds already run
586 static unsigned int rounds_finished;
589 * Number of rounds of churn to read from the file (first line, should be a single number).
591 static unsigned int churn_rounds;
594 * Current round we are in for churn, tells us how many peers to connect/disconnect.
596 static unsigned int current_churn_round;
599 * Number of times to churn per round
601 static unsigned long long churns_per_round;
604 * Array of churn values.
606 static unsigned int *churn_array;
609 * Hash map of stats contexts.
611 static struct GNUNET_CONTAINER_MultiHashMap *stats_map;
614 * LL of malicious settings.
616 struct MaliciousContext *all_malicious;
619 * List of GETS to perform
621 struct TestGetContext *all_gets;
624 * List of PUTS to perform
626 struct TestPutContext *all_puts;
629 * Directory to store temporary data in, defined in config file
631 static char *test_directory;
634 * Variable used to store the number of connections we should wait for.
636 static unsigned int expected_connections;
639 * Variable used to keep track of how many peers aren't yet started.
641 static unsigned long long peers_left;
644 * Handle to the set of all peers run for this test.
646 static struct GNUNET_TESTING_PeerGroup *pg;
650 * Global config handle.
652 static const struct GNUNET_CONFIGURATION_Handle *config;
655 * Total number of peers to run, set based on config file.
657 static unsigned long long num_peers;
660 * Total number of items to insert.
662 static unsigned long long num_puts;
665 * How many puts do we currently have in flight?
667 static unsigned long long outstanding_puts;
670 * How many puts are done?
672 static unsigned long long puts_completed;
675 * Total number of items to attempt to get.
677 static unsigned long long num_gets;
680 * How many puts do we currently have in flight?
682 static unsigned long long outstanding_gets;
685 * How many gets are done?
687 static unsigned long long gets_completed;
690 * Total number of items to attempt to get.
692 static unsigned long long cumulative_num_gets;
695 * How many gets are done?
697 static unsigned long long cumulative_successful_gets;
700 * How many gets failed?
702 static unsigned long long gets_failed;
705 * How many malicious control messages do
706 * we currently have in flight?
708 static unsigned long long outstanding_malicious;
711 * How many set malicious peers are done?
713 static unsigned long long malicious_completed;
716 * Global used to count how many connections we have currently
717 * been notified about (how many times has topology_callback been called
720 static unsigned int total_connections;
723 * Previous connections, for counting new connections during some duration.
725 static unsigned int previous_connections;
728 * For counting failed connections during some duration.
730 static unsigned int previous_failed_connections;
733 * Global used to count how many failed connections we have
734 * been notified about (how many times has topology_callback
735 * been called with failure?)
737 static unsigned int failed_connections;
740 * If GNUNET_YES, only log PUT/GET round data to mysql, otherwise
741 * log everything (including each dht service logging).
743 static unsigned int dhtlog_minimal;
745 /* Task handle to use to schedule shutdown if something goes wrong */
746 GNUNET_SCHEDULER_TaskIdentifier die_task;
748 static char *blacklist_transports;
750 static enum GNUNET_TESTING_Topology topology;
752 static enum GNUNET_TESTING_Topology blacklist_topology = GNUNET_TESTING_TOPOLOGY_NONE; /* Don't do any blacklisting */
754 static enum GNUNET_TESTING_Topology connect_topology = GNUNET_TESTING_TOPOLOGY_NONE; /* NONE actually means connect all allowed peers */
756 static enum GNUNET_TESTING_TopologyOption connect_topology_option = GNUNET_TESTING_TOPOLOGY_OPTION_ALL;
758 static double connect_topology_option_modifier = 0.0;
760 static struct ProgressMeter *hostkey_meter;
762 static struct ProgressMeter *peer_start_meter;
764 static struct ProgressMeter *peer_connect_meter;
766 static struct ProgressMeter *put_meter;
768 static struct ProgressMeter *get_meter;
770 static GNUNET_HashCode *known_keys;
772 /* Global return value (0 for success, anything else for failure) */
776 * Create a meter to keep track of the progress of some task.
778 * @param total the total number of items to complete
779 * @param start_string a string to prefix the meter with (if printing)
780 * @param print GNUNET_YES to print the meter, GNUNET_NO to count
783 * @return the progress meter
785 static struct ProgressMeter *
786 create_meter(unsigned int total, char * start_string, int print)
788 struct ProgressMeter *ret;
789 ret = GNUNET_malloc(sizeof(struct ProgressMeter));
792 ret->modnum = total / 4;
793 ret->dotnum = (total / 50) + 1;
794 if (start_string != NULL)
795 ret->startup_string = GNUNET_strdup(start_string);
797 ret->startup_string = GNUNET_strdup("");
803 * Update progress meter (increment by one).
805 * @param meter the meter to update and print info for
807 * @return GNUNET_YES if called the total requested,
808 * GNUNET_NO if more items expected
811 update_meter(struct ProgressMeter *meter)
813 if (meter->print == GNUNET_YES)
815 if (meter->completed % meter->modnum == 0)
817 if (meter->completed == 0)
819 fprintf(stdout, "%sProgress: [0%%", meter->startup_string);
822 fprintf(stdout, "%d%%", (int)(((float)meter->completed / meter->total) * 100));
824 else if (meter->completed % meter->dotnum == 0)
825 fprintf(stdout, ".");
827 if (meter->completed + 1 == meter->total)
828 fprintf(stdout, "%d%%]\n", 100);
833 if (meter->completed == meter->total)
839 * Reset progress meter.
841 * @param meter the meter to reset
843 * @return GNUNET_YES if meter reset,
844 * GNUNET_SYSERR on error
847 reset_meter(struct ProgressMeter *meter)
850 return GNUNET_SYSERR;
852 meter->completed = 0;
857 * Release resources for meter
859 * @param meter the meter to free
862 free_meter(struct ProgressMeter *meter)
864 GNUNET_free_non_null (meter->startup_string);
869 * Check whether peers successfully shut down.
872 shutdown_callback (void *cls,
883 * Task to release DHT handles for PUT
886 put_disconnect_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
888 struct TestPutContext *test_put = cls;
889 test_put->disconnect_task = GNUNET_SCHEDULER_NO_TASK;
890 GNUNET_DHT_disconnect(test_put->dht_handle);
891 test_put->dht_handle = NULL;
892 if (replicate_same == GNUNET_NO)
893 test_put->daemon = GNUNET_TESTING_daemon_get(pg, GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers));
897 * Function scheduled to be run on the successful completion of this
901 finish_testing (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
903 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Ending test normally!\n", (char *)cls);
904 GNUNET_assert (pg != NULL);
905 struct TestPutContext *test_put = all_puts;
906 struct TestGetContext *test_get = all_gets;
908 while (test_put != NULL)
910 if (test_put->disconnect_task != GNUNET_SCHEDULER_NO_TASK)
911 GNUNET_SCHEDULER_cancel(test_put->disconnect_task);
912 if (test_put->dht_handle != NULL)
913 GNUNET_DHT_disconnect(test_put->dht_handle);
914 test_put = test_put->next;
917 while (test_get != NULL)
919 if (test_get->disconnect_task != GNUNET_SCHEDULER_NO_TASK)
920 GNUNET_SCHEDULER_cancel(test_get->disconnect_task);
921 if (test_get->get_handle != NULL)
922 GNUNET_DHT_get_stop(test_get->get_handle);
923 if (test_get->dht_handle != NULL)
924 GNUNET_DHT_disconnect(test_get->dht_handle);
925 test_get = test_get->next;
928 GNUNET_TESTING_daemons_stop (pg, DEFAULT_TIMEOUT, &shutdown_callback, NULL);
930 if (dhtlog_handle != NULL)
932 fprintf(stderr, "Update trial endtime\n");
933 dhtlog_handle->update_trial (gets_completed);
934 GNUNET_DHTLOG_disconnect(dhtlog_handle);
935 dhtlog_handle = NULL;
938 if (hostkey_meter != NULL)
939 free_meter(hostkey_meter);
940 if (peer_start_meter != NULL)
941 free_meter(peer_start_meter);
942 if (peer_connect_meter != NULL)
943 free_meter(peer_connect_meter);
944 if (put_meter != NULL)
945 free_meter(put_meter);
946 if (get_meter != NULL)
947 free_meter(get_meter);
953 * Callback for iterating over all the peer connections of a peer group.
956 log_topology_cb (void *cls,
957 const struct GNUNET_PeerIdentity *first,
958 const struct GNUNET_PeerIdentity *second,
961 struct TopologyIteratorContext *topo_ctx = cls;
962 if ((first != NULL) && (second != NULL))
964 if ((topo_ctx->peers_seen != NULL) && (GNUNET_NO == GNUNET_CONTAINER_multihashmap_contains(topo_ctx->peers_seen, &first->hashPubKey)))
966 GNUNET_CONTAINER_multihashmap_put(topo_ctx->peers_seen, &first->hashPubKey, NULL, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
967 topo_ctx->total_peers++;
969 topo_ctx->total_connections++;
970 if ((GNUNET_NO == dhtlog_minimal) && (dhtlog_handle != NULL))
971 dhtlog_handle->insert_extended_topology(first, second);
975 GNUNET_assert(dhtlog_handle != NULL);
976 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);
977 dhtlog_handle->update_topology(topo_ctx->total_connections);
978 if (topo_ctx->cont != NULL)
979 GNUNET_SCHEDULER_add_now (topo_ctx->cont, topo_ctx->cls);
980 if (topo_ctx->peers_seen != NULL)
981 GNUNET_CONTAINER_multihashmap_destroy(topo_ctx->peers_seen);
982 GNUNET_free(topo_ctx);
987 * Iterator over hash map entries.
989 * @param cls closure - always NULL
990 * @param key current key code
991 * @param value value in the hash map, a stats context
992 * @return GNUNET_YES if we should continue to
996 static int stats_iterate (void *cls,
997 const GNUNET_HashCode * key,
1000 struct StatisticsIteratorContext *stats_ctx;
1004 dhtlog_handle->insert_stat(stats_ctx->peer, stats_ctx->stat_routes, stats_ctx->stat_route_forwards, stats_ctx->stat_results,
1005 stats_ctx->stat_results_to_client, stats_ctx->stat_result_forwards, stats_ctx->stat_gets,
1006 stats_ctx->stat_puts, stats_ctx->stat_puts_inserted, stats_ctx->stat_find_peer,
1007 stats_ctx->stat_find_peer_start, stats_ctx->stat_get_start, stats_ctx->stat_put_start,
1008 stats_ctx->stat_find_peer_reply, stats_ctx->stat_get_reply, stats_ctx->stat_find_peer_answer,
1009 stats_ctx->stat_get_response_start);
1010 GNUNET_free(stats_ctx);
1015 stats_finished (void *cls, int result)
1017 fprintf(stderr, "Finished getting all peers statistics, iterating!\n");
1018 GNUNET_CONTAINER_multihashmap_iterate(stats_map, &stats_iterate, NULL);
1019 GNUNET_CONTAINER_multihashmap_destroy(stats_map);
1020 GNUNET_SCHEDULER_add_now (&finish_testing, NULL);
1024 * Callback function to process statistic values.
1026 * @param cls closure
1027 * @param peer the peer the statistics belong to
1028 * @param subsystem name of subsystem that created the statistic
1029 * @param name the name of the datum
1030 * @param value the current value
1031 * @param is_persistent GNUNET_YES if the value is persistent, GNUNET_NO if not
1032 * @return GNUNET_OK to continue, GNUNET_SYSERR to abort iteration
1034 static int stats_handle (void *cls,
1035 const struct GNUNET_PeerIdentity *peer,
1036 const char *subsystem,
1041 struct StatisticsIteratorContext *stats_ctx;
1043 if (dhtlog_handle != NULL)
1044 dhtlog_handle->add_generic_stat(peer, name, subsystem, value);
1045 if (GNUNET_CONTAINER_multihashmap_contains(stats_map, &peer->hashPubKey))
1047 stats_ctx = GNUNET_CONTAINER_multihashmap_get(stats_map, &peer->hashPubKey);
1051 stats_ctx = GNUNET_malloc(sizeof(struct StatisticsIteratorContext));
1052 stats_ctx->peer = peer;
1053 GNUNET_CONTAINER_multihashmap_put(stats_map, &peer->hashPubKey, stats_ctx, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
1055 GNUNET_assert(stats_ctx != NULL);
1057 if (strcmp(name, STAT_ROUTES) == 0)
1058 stats_ctx->stat_routes = value;
1059 else if (strcmp(name, STAT_ROUTE_FORWARDS) == 0)
1060 stats_ctx->stat_route_forwards = value;
1061 else if (strcmp(name, STAT_RESULTS) == 0)
1062 stats_ctx->stat_results = value;
1063 else if (strcmp(name, STAT_RESULTS_TO_CLIENT) == 0)
1064 stats_ctx->stat_results_to_client = value;
1065 else if (strcmp(name, STAT_RESULT_FORWARDS) == 0)
1066 stats_ctx->stat_result_forwards = value;
1067 else if (strcmp(name, STAT_GETS) == 0)
1068 stats_ctx->stat_gets = value;
1069 else if (strcmp(name, STAT_PUTS) == 0)
1070 stats_ctx->stat_puts = value;
1071 else if (strcmp(name, STAT_PUTS_INSERTED) == 0)
1072 stats_ctx->stat_puts_inserted = value;
1073 else if (strcmp(name, STAT_FIND_PEER) == 0)
1074 stats_ctx->stat_find_peer = value;
1075 else if (strcmp(name, STAT_FIND_PEER_START) == 0)
1076 stats_ctx->stat_find_peer_start = value;
1077 else if (strcmp(name, STAT_GET_START) == 0)
1078 stats_ctx->stat_get_start = value;
1079 else if (strcmp(name, STAT_PUT_START) == 0)
1080 stats_ctx->stat_put_start = value;
1081 else if (strcmp(name, STAT_FIND_PEER_REPLY) == 0)
1082 stats_ctx->stat_find_peer_reply = value;
1083 else if (strcmp(name, STAT_GET_REPLY) == 0)
1084 stats_ctx->stat_get_reply = value;
1085 else if (strcmp(name, STAT_FIND_PEER_ANSWER) == 0)
1086 stats_ctx->stat_find_peer_answer = value;
1087 else if (strcmp(name, STAT_GET_RESPONSE_START) == 0)
1088 stats_ctx->stat_get_response_start = value;
1094 * Connect to statistics service for each peer and get the appropriate
1095 * dht statistics for safe keeping.
1098 log_dht_statistics (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1100 stats_map = GNUNET_CONTAINER_multihashmap_create(num_peers);
1101 fprintf(stderr, "Starting statistics logging\n");
1102 GNUNET_TESTING_get_statistics(pg, &stats_finished, &stats_handle, NULL);
1107 * Connect to all peers in the peer group and iterate over their
1111 capture_current_topology (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1113 struct TopologyIteratorContext *topo_ctx = cls;
1114 dhtlog_handle->insert_topology(0);
1115 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Called capture_current_topology\n");
1116 GNUNET_TESTING_get_topology (pg, &log_topology_cb, topo_ctx);
1121 * Check if the get_handle is being used, if so stop the request. Either
1122 * way, schedule the end_badly_cont function which actually shuts down the
1126 end_badly (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1128 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Failing test with error: `%s'!\n", (char *)cls);
1130 struct TestPutContext *test_put = all_puts;
1131 struct TestGetContext *test_get = all_gets;
1133 while (test_put != NULL)
1135 if (test_put->disconnect_task != GNUNET_SCHEDULER_NO_TASK)
1136 GNUNET_SCHEDULER_cancel(test_put->disconnect_task);
1137 if (test_put->dht_handle != NULL)
1138 GNUNET_DHT_disconnect(test_put->dht_handle);
1139 test_put = test_put->next;
1142 while (test_get != NULL)
1144 if (test_get->disconnect_task != GNUNET_SCHEDULER_NO_TASK)
1145 GNUNET_SCHEDULER_cancel(test_get->disconnect_task);
1146 if (test_get->get_handle != NULL)
1147 GNUNET_DHT_get_stop(test_get->get_handle);
1148 if (test_get->dht_handle != NULL)
1149 GNUNET_DHT_disconnect(test_get->dht_handle);
1150 test_get = test_get->next;
1153 GNUNET_TESTING_daemons_stop (pg, DEFAULT_TIMEOUT, &shutdown_callback, NULL);
1155 if (dhtlog_handle != NULL)
1157 fprintf(stderr, "Update trial endtime\n");
1158 dhtlog_handle->update_trial (gets_completed);
1159 GNUNET_DHTLOG_disconnect(dhtlog_handle);
1160 dhtlog_handle = NULL;
1163 if (hostkey_meter != NULL)
1164 free_meter(hostkey_meter);
1165 if (peer_start_meter != NULL)
1166 free_meter(peer_start_meter);
1167 if (peer_connect_meter != NULL)
1168 free_meter(peer_connect_meter);
1169 if (put_meter != NULL)
1170 free_meter(put_meter);
1171 if (get_meter != NULL)
1172 free_meter(get_meter);
1178 * Forward declaration.
1181 do_put (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc);
1184 * Forward declaration.
1187 do_get (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc);
1190 * Iterator over hash map entries.
1192 * @param cls closure
1193 * @param key current key code
1194 * @param value value in the hash map
1195 * @return GNUNET_YES if we should continue to
1199 static int remove_peer_count (void *cls,
1200 const GNUNET_HashCode * key,
1203 struct FindPeerContext *find_peer_ctx = cls;
1204 struct PeerCount *peer_count = value;
1205 GNUNET_CONTAINER_heap_remove_node(find_peer_ctx->peer_min_heap, peer_count->heap_node);
1206 GNUNET_free(peer_count);
1212 * Connect to all peers in the peer group and iterate over their
1216 count_new_peers (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1218 struct FindPeerContext *find_peer_context = cls;
1219 find_peer_context->previous_peers = find_peer_context->current_peers;
1220 find_peer_context->current_peers = 0;
1221 GNUNET_TESTING_get_topology (pg, find_peer_context->count_peers_cb, find_peer_context);
1225 decrement_find_peers (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1227 struct TestFindPeer *test_find_peer = cls;
1228 GNUNET_assert(test_find_peer->find_peer_context->outstanding > 0);
1229 test_find_peer->find_peer_context->outstanding--;
1230 test_find_peer->find_peer_context->total--;
1231 if (0 == test_find_peer->find_peer_context->total)
1233 GNUNET_SCHEDULER_add_now(&count_new_peers, test_find_peer->find_peer_context);
1235 GNUNET_free(test_find_peer);
1239 * A find peer request has been sent to the server, now we will schedule a task
1240 * to wait the appropriate time to allow the request to go out and back.
1242 * @param cls closure - a TestFindPeer struct
1243 * @param tc context the task is being called with
1246 handle_find_peer_sent (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1248 struct TestFindPeer *test_find_peer = cls;
1250 GNUNET_DHT_disconnect(test_find_peer->dht_handle);
1251 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_divide(find_peer_delay, 2), &decrement_find_peers, test_find_peer);
1256 send_find_peer_request (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1258 struct TestFindPeer *test_find_peer = cls;
1260 if (test_find_peer->find_peer_context->outstanding > max_outstanding_find_peers)
1262 GNUNET_SCHEDULER_add_delayed(find_peer_offset, &send_find_peer_request, test_find_peer);
1266 test_find_peer->find_peer_context->outstanding++;
1267 if (GNUNET_TIME_absolute_get_remaining(test_find_peer->find_peer_context->endtime).rel_value == 0)
1269 GNUNET_SCHEDULER_add_now(&decrement_find_peers, test_find_peer);
1273 test_find_peer->dht_handle = GNUNET_DHT_connect(test_find_peer->daemon->cfg, 1);
1274 GNUNET_assert(test_find_peer->dht_handle != NULL);
1275 GNUNET_DHT_find_peers (test_find_peer->dht_handle,
1276 &handle_find_peer_sent, test_find_peer);
1281 * Add a connection to the find_peer_context given. This may
1282 * be complete overkill, but allows us to choose the peers with
1283 * the least connections to initiate find peer requests from.
1285 static void add_new_connection(struct FindPeerContext *find_peer_context,
1286 const struct GNUNET_PeerIdentity *first,
1287 const struct GNUNET_PeerIdentity *second)
1289 struct PeerCount *first_count;
1290 struct PeerCount *second_count;
1292 if (GNUNET_CONTAINER_multihashmap_contains(find_peer_context->peer_hash, &first->hashPubKey))
1294 first_count = GNUNET_CONTAINER_multihashmap_get(find_peer_context->peer_hash, &first->hashPubKey);
1295 GNUNET_assert(first_count != NULL);
1296 first_count->count++;
1297 GNUNET_CONTAINER_heap_update_cost(find_peer_context->peer_min_heap, first_count->heap_node, first_count->count);
1301 first_count = GNUNET_malloc(sizeof(struct PeerCount));
1302 first_count->count = 1;
1303 memcpy(&first_count->peer_id, first, sizeof(struct GNUNET_PeerIdentity));
1304 first_count->heap_node = GNUNET_CONTAINER_heap_insert(find_peer_context->peer_min_heap, first_count, first_count->count);
1305 GNUNET_CONTAINER_multihashmap_put(find_peer_context->peer_hash, &first->hashPubKey, first_count, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
1308 if (GNUNET_CONTAINER_multihashmap_contains(find_peer_context->peer_hash, &second->hashPubKey))
1310 second_count = GNUNET_CONTAINER_multihashmap_get(find_peer_context->peer_hash, &second->hashPubKey);
1311 GNUNET_assert(second_count != NULL);
1312 second_count->count++;
1313 GNUNET_CONTAINER_heap_update_cost(find_peer_context->peer_min_heap, second_count->heap_node, second_count->count);
1317 second_count = GNUNET_malloc(sizeof(struct PeerCount));
1318 second_count->count = 1;
1319 memcpy(&second_count->peer_id, second, sizeof(struct GNUNET_PeerIdentity));
1320 second_count->heap_node = GNUNET_CONTAINER_heap_insert(find_peer_context->peer_min_heap, second_count, second_count->count);
1321 GNUNET_CONTAINER_multihashmap_put(find_peer_context->peer_hash, &second->hashPubKey, second_count, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
1327 * Iterate over min heap of connections per peer. For any
1328 * peer that has 0 connections, attempt to connect them to
1331 * @param cls closure a struct FindPeerContext
1332 * @param node internal node of the heap
1333 * @param element value stored, a struct PeerCount
1334 * @param cost cost associated with the node
1335 * @return GNUNET_YES if we should continue to iterate,
1338 static int iterate_min_heap_peers (void *cls,
1339 struct GNUNET_CONTAINER_HeapNode *node,
1341 GNUNET_CONTAINER_HeapCostType cost)
1343 struct FindPeerContext *find_peer_context = cls;
1344 struct PeerCount *peer_count = element;
1345 struct GNUNET_TESTING_Daemon *d1;
1346 struct GNUNET_TESTING_Daemon *d2;
1347 struct GNUNET_TIME_Relative timeout;
1350 d1 = GNUNET_TESTING_daemon_get_by_id (pg, &peer_count->peer_id);
1351 GNUNET_assert(d1 != NULL);
1353 while ((d2 == d1) || (GNUNET_YES != GNUNET_TESTING_daemon_running(d2)))
1355 d2 = GNUNET_TESTING_daemon_get(pg, GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers));
1356 GNUNET_assert(d2 != NULL);
1359 /** Just try to connect the peers, don't worry about callbacks, etc. **/
1360 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);
1361 timeout = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, DEFAULT_CONNECT_TIMEOUT);
1362 if (GNUNET_TIME_relative_to_absolute(timeout).abs_value > find_peer_context->endtime.abs_value)
1364 timeout = GNUNET_TIME_absolute_get_remaining(find_peer_context->endtime);
1366 GNUNET_TESTING_daemons_connect(d1, d2, timeout, DEFAULT_RECONNECT_ATTEMPTS, GNUNET_YES, NULL, NULL);
1368 if (GNUNET_TIME_absolute_get_remaining(find_peer_context->endtime).rel_value > 0)
1375 * Forward declaration.
1378 schedule_churn_find_peer_requests (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc);
1381 * Callback for iterating over all the peer connections of a peer group.
1382 * Used after we have churned on some peers to find which ones have zero
1383 * connections so we can make them issue find peer requests.
1386 count_peers_churn_cb (void *cls,
1387 const struct GNUNET_PeerIdentity *first,
1388 const struct GNUNET_PeerIdentity *second,
1391 struct FindPeerContext *find_peer_context = cls;
1392 struct TopologyIteratorContext *topo_ctx;
1393 struct PeerCount *peer_count;
1395 if ((first != NULL) && (second != NULL))
1397 add_new_connection(find_peer_context, first, second);
1398 find_peer_context->current_peers++;
1402 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Peer count finished (%u connections)\n",
1403 find_peer_context->current_peers);
1404 peer_count = GNUNET_CONTAINER_heap_peek(find_peer_context->peer_min_heap);
1405 GNUNET_assert(peer_count != NULL);
1406 /* 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. */
1407 /* NO they won't, because we have disabled peerinfo writing to disk (remember?) so we WILL have to give them new connections */
1408 /* Best course of action: have DHT automatically try to add peers from peerinfo on startup. This way IF peerinfo writes to file
1409 * then some peers will end up connected.
1411 * Also, find any peers that have zero connections here and set up a task to choose at random another peer in the network to
1412 * 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
1413 * until they get a peer.
1415 /* However, they won't automatically be connected to any of their previous peers... How can we handle that? */
1416 /* So now we have choices: do we want them to come back with all their connections? Probably not, but it solves this mess. */
1418 /* Second problem, which is still a problem, is that a FIND_PEER request won't work when a peer has no connections */
1421 * Okay, so here's how this *should* work now.
1423 * 1. We check the min heap for any peers that have 0 connections.
1424 * a. If any are found, we iterate over the heap and just randomly
1425 * choose another peer and ask testing to please connect the two.
1426 * This takes care of the case that a peer just randomly joins the
1427 * network. However, if there are strict topology restrictions
1428 * (imagine a ring) choosing randomly most likely won't help.
1429 * We make sure the connection attempt doesn't take longer than
1430 * the total timeout, but don't care too much about the result.
1431 * b. After that, we still schedule the find peer requests (concurrently
1432 * with the connect attempts most likely). This handles the case
1433 * that the DHT iterates over peerinfo and just needs to try to send
1434 * a message to get connected. This should handle the case that the
1435 * topology is very strict.
1437 * 2. If all peers have > 0 connections, we still send find peer requests
1438 * as long as possible (until timeout is reached) to help out those
1439 * peers that were newly churned and need more connections. This is because
1440 * once all new peers have established a single connection, they won't be
1443 * 3. Once we reach the timeout, we can do no more. We must schedule the
1444 * next iteration of get requests regardless of connections that peers
1445 * may or may not have.
1447 * Caveat: it would be nice to get peers to take data offline with them and
1448 * come back with it (or not) based on the testing framework. The
1449 * same goes for remembering previous connections, but putting either
1450 * into the general testing churn options seems like overkill because
1451 * these are very specialized cases.
1453 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);
1454 if ((peer_count->count == 0) && (GNUNET_TIME_absolute_get_remaining(find_peer_context->endtime).rel_value > 0))
1456 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Found peer with no connections, will choose some peer(s) at random to connect to!\n");
1457 GNUNET_CONTAINER_heap_iterate (find_peer_context->peer_min_heap, &iterate_min_heap_peers, find_peer_context);
1458 GNUNET_SCHEDULER_add_now(&schedule_churn_find_peer_requests, find_peer_context);
1460 else if ((GNUNET_TIME_absolute_get_remaining(find_peer_context->endtime).rel_value > 0) && (find_peer_context->last_sent != 0))
1462 GNUNET_SCHEDULER_add_now(&schedule_churn_find_peer_requests, find_peer_context);
1466 GNUNET_CONTAINER_multihashmap_iterate(find_peer_context->peer_hash, &remove_peer_count, find_peer_context);
1467 GNUNET_CONTAINER_multihashmap_destroy(find_peer_context->peer_hash);
1468 GNUNET_CONTAINER_heap_destroy(find_peer_context->peer_min_heap);
1469 GNUNET_free(find_peer_context);
1470 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Churn round %u of %llu finished, scheduling next GET round.\n", current_churn_round, churn_rounds);
1471 if (dhtlog_handle != NULL)
1473 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
1474 topo_ctx->cont = &do_get;
1475 topo_ctx->cls = all_gets;
1476 topo_ctx->timeout = DEFAULT_GET_TIMEOUT;
1477 topo_ctx->peers_seen = GNUNET_CONTAINER_multihashmap_create(num_peers);
1478 die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_add(GNUNET_TIME_relative_add(DEFAULT_GET_TIMEOUT, all_get_timeout), DEFAULT_TOPOLOGY_CAPTURE_TIMEOUT),
1479 &end_badly, "from do gets (count_peers_churn_cb)");
1480 GNUNET_SCHEDULER_add_now(&capture_current_topology, topo_ctx);
1484 die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_add(GNUNET_TIME_relative_add(DEFAULT_GET_TIMEOUT, all_get_timeout), DEFAULT_TOPOLOGY_CAPTURE_TIMEOUT),
1485 &end_badly, "from do gets (count_peers_churn_cb)");
1486 GNUNET_SCHEDULER_add_now(&do_get, all_gets);
1493 * Set up a single find peer request for each peer in the topology. Do this
1494 * until the settle time is over, limited by the number of outstanding requests
1495 * and the time allowed for each one!
1498 schedule_churn_find_peer_requests (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1500 struct FindPeerContext *find_peer_ctx = cls;
1501 struct TestFindPeer *test_find_peer;
1502 struct PeerCount *peer_count;
1505 if (find_peer_ctx->previous_peers == 0) /* First time, go slowly */
1506 find_peer_ctx->total = 1;
1507 else if (find_peer_ctx->current_peers - find_peer_ctx->previous_peers < MIN_FIND_PEER_CUTOFF)
1508 find_peer_ctx->total = find_peer_ctx->total / 2;
1509 else if (find_peer_ctx->current_peers - find_peer_ctx->previous_peers > MAX_FIND_PEER_CUTOFF) /* Found LOTS of peers, still go slowly */
1510 find_peer_ctx->total = find_peer_ctx->last_sent - (find_peer_ctx->last_sent / 4);
1512 find_peer_ctx->total = find_peer_ctx->last_sent * 4;
1514 if (find_peer_ctx->total > max_outstanding_find_peers)
1515 find_peer_ctx->total = max_outstanding_find_peers;
1517 find_peer_ctx->last_sent = find_peer_ctx->total;
1518 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Sending %u find peer messages (after churn)\n", find_peer_ctx->total);
1520 if (find_peer_ctx->total > 0)
1521 find_peer_offset = GNUNET_TIME_relative_divide(find_peer_delay, find_peer_ctx->total);
1524 find_peer_ctx->previous_peers = find_peer_ctx->current_peers;
1525 find_peer_ctx->current_peers = 0;
1526 GNUNET_TESTING_get_topology (pg, &count_peers_churn_cb, find_peer_ctx);
1530 for (i = 0; i < find_peer_ctx->total; i++)
1532 test_find_peer = GNUNET_malloc(sizeof(struct TestFindPeer));
1533 /* If we have sent requests, choose peers with a low number of connections to send requests from */
1534 peer_count = GNUNET_CONTAINER_heap_remove_root(find_peer_ctx->peer_min_heap);
1535 GNUNET_assert(peer_count != NULL);
1536 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Sending find peer request from peer with %u connections\n", peer_count->count);
1537 GNUNET_CONTAINER_multihashmap_remove(find_peer_ctx->peer_hash, &peer_count->peer_id.hashPubKey, peer_count);
1538 test_find_peer->daemon = GNUNET_TESTING_daemon_get_by_id(pg, &peer_count->peer_id);
1539 GNUNET_assert(test_find_peer->daemon != NULL);
1540 test_find_peer->find_peer_context = find_peer_ctx;
1541 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_multiply(find_peer_offset, i), &send_find_peer_request, test_find_peer);
1544 if ((find_peer_ctx->peer_hash == NULL) && (find_peer_ctx->peer_min_heap == NULL))
1546 find_peer_ctx->peer_hash = GNUNET_CONTAINER_multihashmap_create(num_peers);
1547 find_peer_ctx->peer_min_heap = GNUNET_CONTAINER_heap_create(GNUNET_CONTAINER_HEAP_ORDER_MIN);
1551 GNUNET_CONTAINER_multihashmap_iterate(find_peer_ctx->peer_hash, &remove_peer_count, find_peer_ctx);
1552 GNUNET_CONTAINER_multihashmap_destroy(find_peer_ctx->peer_hash);
1553 find_peer_ctx->peer_hash = GNUNET_CONTAINER_multihashmap_create(num_peers);
1556 GNUNET_assert(0 == GNUNET_CONTAINER_multihashmap_size(find_peer_ctx->peer_hash));
1557 GNUNET_assert(0 == GNUNET_CONTAINER_heap_get_size(find_peer_ctx->peer_min_heap));
1560 static void schedule_churn_get_topology (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1562 struct FindPeerContext *find_peer_context = cls;
1563 GNUNET_TESTING_get_topology (pg, &count_peers_churn_cb, find_peer_context);
1567 * Called when churning of the topology has finished.
1569 * @param cls closure unused
1570 * @param emsg NULL on success, or a printable error on failure
1572 static void churn_complete (void *cls, const char *emsg)
1574 struct FindPeerContext *find_peer_context = cls;
1575 struct PeerCount *peer_count;
1577 struct GNUNET_TESTING_Daemon *temp_daemon;
1578 struct TopologyIteratorContext *topo_ctx;
1579 struct GNUNET_TIME_Relative calc_timeout;
1584 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Ending test, churning of peers failed with error `%s'", emsg);
1585 GNUNET_SCHEDULER_add_now(&end_badly, (void *)emsg);
1590 * If we switched any peers on, we have to somehow force connect the new peer to
1591 * SOME bootstrap peer in the network. First schedule a task to find all peers
1592 * with no connections, then choose a random peer for each and connect them.
1594 if (find_peer_context != NULL)
1596 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "We have churned on some peers, so we must schedule find peer requests for them!\n");
1598 for (i = 0; i < num_peers; i ++)
1600 temp_daemon = GNUNET_TESTING_daemon_get(pg, i);
1601 if (GNUNET_YES == GNUNET_TESTING_daemon_running(temp_daemon))
1603 peer_count = GNUNET_malloc (sizeof(struct PeerCount));
1604 memcpy(&peer_count->peer_id, &temp_daemon->id, sizeof(struct GNUNET_PeerIdentity));
1605 GNUNET_assert(peer_count->count == 0);
1606 peer_count->heap_node = GNUNET_CONTAINER_heap_insert(find_peer_context->peer_min_heap, peer_count, peer_count->count);
1607 GNUNET_CONTAINER_multihashmap_put(find_peer_context->peer_hash, &temp_daemon->id.hashPubKey, peer_count, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
1611 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));
1612 GNUNET_SCHEDULER_add_delayed(DEFAULT_PEER_DISCONNECT_TIMEOUT, &schedule_churn_get_topology, find_peer_context);
1616 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");
1617 if (dhtlog_handle != NULL)
1619 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
1620 topo_ctx->cont = &do_get;
1621 topo_ctx->cls = all_gets;
1622 topo_ctx->timeout = DEFAULT_GET_TIMEOUT;
1623 topo_ctx->peers_seen = GNUNET_CONTAINER_multihashmap_create(num_peers);
1624 calc_timeout = GNUNET_TIME_relative_add(DEFAULT_GET_TIMEOUT, all_get_timeout);
1625 calc_timeout = GNUNET_TIME_relative_add(calc_timeout, DEFAULT_TOPOLOGY_CAPTURE_TIMEOUT);
1626 calc_timeout = GNUNET_TIME_relative_add(calc_timeout, DEFAULT_PEER_DISCONNECT_TIMEOUT);
1627 die_task = GNUNET_SCHEDULER_add_delayed (calc_timeout,
1628 &end_badly, "from do gets (churn_complete)");
1629 GNUNET_SCHEDULER_add_delayed(DEFAULT_PEER_DISCONNECT_TIMEOUT, &capture_current_topology, topo_ctx);
1630 dhtlog_handle->insert_round(DHT_ROUND_GET, rounds_finished);
1634 calc_timeout = GNUNET_TIME_relative_add(DEFAULT_GET_TIMEOUT, all_get_timeout);
1635 calc_timeout = GNUNET_TIME_relative_add(calc_timeout, DEFAULT_PEER_DISCONNECT_TIMEOUT);
1636 die_task = GNUNET_SCHEDULER_add_delayed (calc_timeout,
1637 &end_badly, "from do gets (churn_complete)");
1638 GNUNET_SCHEDULER_add_delayed(DEFAULT_PEER_DISCONNECT_TIMEOUT, &do_get, all_gets);
1644 * Decide how many peers to turn on or off in this round, make sure the
1645 * numbers actually make sense, then do so. This function sets in motion
1646 * churn, find peer requests for newly joined peers, and issuing get
1647 * requests once the new peers have done so.
1649 * @param cls closure (unused)
1650 * @param tc task context (unused)
1653 churn_peers (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1655 unsigned int count_running;
1656 unsigned int churn_up;
1657 unsigned int churn_down;
1658 struct GNUNET_TIME_Relative timeout;
1659 struct FindPeerContext *find_peer_context;
1661 churn_up = churn_down = 0;
1662 count_running = GNUNET_TESTING_daemons_running(pg);
1663 if (count_running > churn_array[current_churn_round])
1664 churn_down = count_running - churn_array[current_churn_round];
1665 else if (count_running < churn_array[current_churn_round])
1666 churn_up = churn_array[current_churn_round] - count_running;
1668 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Not churning any peers, topology unchanged.\n");
1670 if (churn_up > num_peers - count_running)
1672 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Churn file specified %u peers (up); only have %u!", churn_array[current_churn_round], num_peers);
1673 churn_up = num_peers - count_running;
1675 else if (churn_down > count_running)
1677 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Churn file specified %u peers (down); only have %u!", churn_array[current_churn_round], count_running);
1678 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "This will leave NO peers running (mistake in churn configuration?)!");
1679 churn_down = count_running;
1681 //timeout = GNUNET_TIME_relative_multiply(seconds_per_peer_start, churn_up > 0 ? churn_up : churn_down);
1682 //timeout = GNUNET_TIME_relative_multiply (seconds_per_peer_start, churn_up > 0 ? churn_up : churn_down);
1683 timeout = GNUNET_TIME_relative_multiply(DEFAULT_TIMEOUT, 2); /* FIXME: Lack of intelligent choice here */
1684 find_peer_context = NULL;
1685 if (churn_up > 0) /* Only need to do find peer requests if we turned new peers on */
1687 find_peer_context = GNUNET_malloc(sizeof(struct FindPeerContext));
1688 find_peer_context->count_peers_cb = &count_peers_churn_cb;
1689 find_peer_context->previous_peers = 0;
1690 find_peer_context->current_peers = 0;
1691 find_peer_context->endtime = GNUNET_TIME_relative_to_absolute(timeout);
1692 find_peer_context->peer_hash = GNUNET_CONTAINER_multihashmap_create(num_peers);
1693 find_peer_context->peer_min_heap = GNUNET_CONTAINER_heap_create(GNUNET_CONTAINER_HEAP_ORDER_MIN);
1695 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "churn_peers: want %u total, %u running, starting %u, stopping %u\n",
1696 churn_array[current_churn_round], count_running, churn_up, churn_down);
1697 GNUNET_TESTING_daemons_churn (pg, churn_down, churn_up, timeout, &churn_complete, find_peer_context);
1698 current_churn_round++;
1702 * Task to release DHT handle associated with GET request.
1705 get_stop_finished (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1707 struct TestGetContext *test_get = cls;
1708 struct TopologyIteratorContext *topo_ctx;
1710 /* The dht_handle may be null if this get was scheduled from a down peer */
1711 if (test_get->dht_handle != NULL)
1713 GNUNET_DHT_disconnect(test_get->dht_handle);
1714 outstanding_gets--; /* GET is really finished */
1715 test_get->dht_handle = NULL;
1718 /* Reset the uid (which item to search for) and the daemon (which peer to search from) for later get request iterations */
1719 if (get_from_same == GNUNET_NO)
1721 test_get->uid = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_puts);
1722 test_get->daemon = GNUNET_TESTING_daemon_get(pg, GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers));
1726 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "%d gets succeeded, %d gets failed!\n", gets_completed, gets_failed);
1728 update_meter(get_meter);
1729 if ((gets_completed + gets_failed == num_gets) && (outstanding_gets == 0))
1731 fprintf(stderr, "Canceling die task (get_stop_finished) %llu gets completed, %llu gets failed\n", gets_completed, gets_failed);
1732 if ((GNUNET_YES == dhtlog_minimal) && (NULL != dhtlog_handle))
1733 dhtlog_handle->insert_round_details(DHT_ROUND_GET, rounds_finished, num_gets, gets_completed);
1734 GNUNET_SCHEDULER_cancel(die_task);
1735 reset_meter(put_meter);
1736 reset_meter(get_meter);
1739 * 1) Testing is completely finished, call the topology iteration dealy and die
1740 * 2) Testing is not finished, churn the network and do gets again (current_churn_round < churn_rounds)
1741 * 3) Testing is not finished, reschedule all the PUTS *and* GETS again (num_rounds > 1)
1743 if (rounds_finished == total_rounds - 1) /* Everything is finished, end testing */
1745 if ((dhtlog_handle != NULL) && (GNUNET_NO == dhtlog_minimal))
1747 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
1748 topo_ctx->cont = &log_dht_statistics;
1749 topo_ctx->peers_seen = GNUNET_CONTAINER_multihashmap_create(num_peers);
1750 GNUNET_SCHEDULER_add_now(&capture_current_topology, topo_ctx);
1753 GNUNET_SCHEDULER_add_now (&finish_testing, NULL);
1755 else if (current_churn_round < churns_per_round * (rounds_finished + 1)) /* Do next round of churn */
1757 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);
1761 if (dhtlog_handle != NULL)
1762 dhtlog_handle->insert_round(DHT_ROUND_CHURN, rounds_finished);
1764 GNUNET_SCHEDULER_add_now(&churn_peers, NULL);
1766 else if (rounds_finished < total_rounds - 1) /* Start a new complete round */
1771 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Round %u of %llu finished, scheduling next round.\n", rounds_finished, total_rounds);
1773 /** We reset the peer daemon for puts and gets on each disconnect, so all we need to do is start another round! */
1774 if (GNUNET_YES == in_dht_replication) /* Replication done in DHT, don't redo puts! */
1776 if (dhtlog_handle != NULL)
1777 dhtlog_handle->insert_round(DHT_ROUND_GET, rounds_finished);
1779 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),
1780 &end_badly, "from do gets (next round)");
1781 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, round_delay), &do_get, all_gets);
1785 if (dhtlog_handle != NULL)
1786 dhtlog_handle->insert_round(DHT_ROUND_NORMAL, rounds_finished);
1787 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)),
1788 &end_badly, "from do puts");
1789 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, round_delay), &do_put, all_puts);
1796 * Task to release get handle.
1799 get_stop_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1801 struct TestGetContext *test_get = cls;
1803 if (tc->reason == GNUNET_SCHEDULER_REASON_TIMEOUT)
1806 cumulative_successful_gets++;
1808 GNUNET_assert(test_get->get_handle != NULL);
1809 GNUNET_DHT_get_stop(test_get->get_handle);
1810 test_get->get_handle = NULL;
1811 test_get->disconnect_task = GNUNET_SCHEDULER_NO_TASK;
1812 GNUNET_SCHEDULER_add_now (&get_stop_finished, test_get);
1816 * Iterator called if the GET request initiated returns a response.
1818 * @param cls closure
1819 * @param exp when will this value expire
1820 * @param key key of the result
1821 * @param get_path NULL-terminated array of pointers
1822 * to the peers on reverse GET path (or NULL if not recorded)
1823 * @param put_path NULL-terminated array of pointers
1824 * to the peers on the PUT path (or NULL if not recorded)
1825 * @param type type of the result
1826 * @param size number of bytes in data
1827 * @param data pointer to the result data
1830 get_result_iterator (void *cls,
1831 struct GNUNET_TIME_Absolute exp,
1832 const GNUNET_HashCode * key,
1833 const struct GNUNET_PeerIdentity * const *get_path,
1834 const struct GNUNET_PeerIdentity * const *put_path,
1835 enum GNUNET_BLOCK_Type type,
1839 struct TestGetContext *test_get = cls;
1841 if (test_get->succeeded == GNUNET_YES)
1842 return; /* Get has already been successful, probably ending now */
1844 if (0 != memcmp(&known_keys[test_get->uid], key, sizeof (GNUNET_HashCode))) /* || (0 != memcmp(original_data, data, sizeof(original_data))))*/
1847 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Key or data is not the same as was inserted!\n");
1852 test_get->succeeded = GNUNET_YES;
1855 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Received correct GET response!\n");
1857 GNUNET_SCHEDULER_cancel(test_get->disconnect_task);
1858 GNUNET_SCHEDULER_add_continuation(&get_stop_task, test_get, GNUNET_SCHEDULER_REASON_PREREQ_DONE);
1864 * Set up some data, and call API PUT function
1867 do_get (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1869 struct TestGetContext *test_get = cls;
1873 GNUNET_SCHEDULER_cancel(die_task);
1874 GNUNET_SCHEDULER_add_now(&finish_testing, NULL);
1877 if (test_get == NULL)
1878 return; /* End of the list */
1880 /* Set this here in case we are re-running gets */
1881 test_get->succeeded = GNUNET_NO;
1883 if (GNUNET_YES != GNUNET_TESTING_daemon_running(test_get->daemon)) /* If the peer has been churned off, don't try issuing request from it! */
1885 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Peer we should issue get request from is down, skipping.\n");
1887 GNUNET_SCHEDULER_add_now (&get_stop_finished, test_get);
1888 GNUNET_SCHEDULER_add_now (&do_get, test_get->next);
1892 /* Check if more gets are outstanding than should be */
1893 if (outstanding_gets > max_outstanding_gets)
1895 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MILLISECONDS, 200), &do_get, test_get);
1899 /* Connect to the first peer's DHT */
1900 test_get->dht_handle = GNUNET_DHT_connect(test_get->daemon->cfg, 10);
1901 GNUNET_assert(test_get->dht_handle != NULL);
1904 cumulative_num_gets++;
1905 /* Insert the data at the first peer */
1906 test_get->get_handle = GNUNET_DHT_get_start(test_get->dht_handle,
1908 GNUNET_BLOCK_TYPE_TEST,
1909 &known_keys[test_get->uid],
1914 &get_result_iterator,
1918 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Starting get for uid %u from peer %s\n",
1920 test_get->daemon->shortname);
1922 test_get->disconnect_task = GNUNET_SCHEDULER_add_delayed(get_timeout, &get_stop_task, test_get);
1924 /* Schedule the next request in the linked list of get requests */
1925 GNUNET_SCHEDULER_add_now (&do_get, test_get->next);
1929 * Called when the PUT request has been transmitted to the DHT service.
1930 * Schedule the GET request for some time in the future.
1933 put_finished (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1935 struct TestPutContext *test_put = cls;
1936 struct TopologyIteratorContext *topo_ctx;
1940 if (tc->reason == GNUNET_SCHEDULER_REASON_TIMEOUT)
1941 fprintf(stderr, "PUT Request failed!\n");
1943 /* Reset the daemon (which peer to insert at) for later put request iterations */
1944 if (replicate_same == GNUNET_NO)
1945 test_put->daemon = GNUNET_TESTING_daemon_get(pg, GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers));
1947 GNUNET_SCHEDULER_cancel(test_put->disconnect_task);
1948 test_put->disconnect_task = GNUNET_SCHEDULER_add_now(&put_disconnect_task, test_put);
1949 if (GNUNET_YES == update_meter(put_meter))
1951 GNUNET_assert(outstanding_puts == 0);
1952 GNUNET_SCHEDULER_cancel (die_task);
1953 if ((dhtlog_handle != NULL) && (GNUNET_NO == dhtlog_minimal))
1955 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
1956 topo_ctx->cont = &do_get;
1957 topo_ctx->cls = all_gets;
1958 topo_ctx->timeout = DEFAULT_GET_TIMEOUT;
1959 topo_ctx->peers_seen = GNUNET_CONTAINER_multihashmap_create(num_peers);
1960 die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_add(GNUNET_TIME_relative_add(DEFAULT_GET_TIMEOUT, all_get_timeout), DEFAULT_TOPOLOGY_CAPTURE_TIMEOUT),
1961 &end_badly, "from do gets (put finished)");
1962 GNUNET_SCHEDULER_add_now(&capture_current_topology, topo_ctx);
1966 fprintf(stderr, "Scheduling die task (put finished)\n");
1967 die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_add(DEFAULT_GET_TIMEOUT, all_get_timeout),
1968 &end_badly, "from do gets (put finished)");
1969 GNUNET_SCHEDULER_add_delayed(DEFAULT_GET_TIMEOUT, &do_get, all_gets);
1976 * Set up some data, and call API PUT function
1979 do_put (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1981 struct TestPutContext *test_put = cls;
1982 char data[test_data_size]; /* Made up data to store */
1986 if (test_put == NULL)
1987 return; /* End of list */
1989 if (GNUNET_YES != GNUNET_TESTING_daemon_running(test_put->daemon)) /* If the peer has been churned off, don't try issuing request from it! */
1991 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Peer we should issue put request at is down, skipping.\n");
1992 update_meter(put_meter);
1993 GNUNET_SCHEDULER_add_now (&do_put, test_put->next);
1997 for (i = 0; i < sizeof(data); i++)
1999 memset(&data[i], GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, UINT32_MAX), 1);
2002 if (outstanding_puts > max_outstanding_puts)
2004 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MILLISECONDS, 200), &do_put, test_put);
2009 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Starting put for uid %u from peer %s\n",
2011 test_put->daemon->shortname);
2013 test_put->dht_handle = GNUNET_DHT_connect(test_put->daemon->cfg, 10);
2015 GNUNET_assert(test_put->dht_handle != NULL);
2017 GNUNET_DHT_put(test_put->dht_handle,
2018 &known_keys[test_put->uid],
2021 GNUNET_BLOCK_TYPE_TEST,
2023 GNUNET_TIME_UNIT_FOREVER_ABS,
2025 &put_finished, test_put);
2026 test_put->disconnect_task = GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_get_forever(), &put_disconnect_task, test_put);
2027 rand = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, 2);
2028 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, rand), &do_put, test_put->next);
2032 schedule_find_peer_requests (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc);
2035 setup_malicious_peers (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc);
2038 * Given a number of total peers and a bucket size, estimate the number of
2039 * connections in a perfect kademlia topology.
2041 static unsigned int connection_estimate(unsigned int peer_count, unsigned int bucket_size)
2044 unsigned int filled;
2048 while (i >= bucket_size)
2053 filled++; /* Add one filled bucket to account for one "half full" and some miscellaneous */
2054 return filled * bucket_size * peer_count;
2060 * Callback for iterating over all the peer connections of a peer group.
2063 count_peers_cb (void *cls,
2064 const struct GNUNET_PeerIdentity *first,
2065 const struct GNUNET_PeerIdentity *second,
2068 struct FindPeerContext *find_peer_context = cls;
2069 if ((first != NULL) && (second != NULL))
2071 add_new_connection(find_peer_context, first, second);
2072 find_peer_context->current_peers++;
2076 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Peer count finished (%u connections), %u new peers, connection estimate %u (target %u)\n",
2077 find_peer_context->current_peers,
2078 find_peer_context->current_peers - find_peer_context->previous_peers,
2079 connection_estimate(num_peers, DEFAULT_BUCKET_SIZE),
2080 target_total_connections);
2082 if ((find_peer_context->last_sent < 8) ||
2083 ((find_peer_context->current_peers < 2 * connection_estimate(num_peers, DEFAULT_BUCKET_SIZE)) &&
2084 (GNUNET_TIME_absolute_get_remaining(find_peer_context->endtime).rel_value > 0) &&
2085 (find_peer_context->current_peers < target_total_connections)))
2087 GNUNET_SCHEDULER_add_now(&schedule_find_peer_requests, find_peer_context);
2091 GNUNET_CONTAINER_multihashmap_iterate(find_peer_context->peer_hash, &remove_peer_count, find_peer_context);
2092 GNUNET_CONTAINER_multihashmap_destroy(find_peer_context->peer_hash);
2093 GNUNET_CONTAINER_heap_destroy(find_peer_context->peer_min_heap);
2094 GNUNET_free(find_peer_context);
2095 fprintf(stderr, "Not sending any more find peer requests.\n");
2098 if (GNUNET_YES == malicious_after_settle)
2100 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "calling setup_malicious_peers\n");
2101 GNUNET_SCHEDULER_add_now(&setup_malicious_peers, NULL);
2110 * Set up a single find peer request for each peer in the topology. Do this
2111 * until the settle time is over, limited by the number of outstanding requests
2112 * and the time allowed for each one!
2115 schedule_find_peer_requests (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
2117 struct FindPeerContext *find_peer_ctx = cls;
2118 struct TestFindPeer *test_find_peer;
2119 struct PeerCount *peer_count;
2123 if (find_peer_ctx->previous_peers == 0) /* First time, go slowly */
2124 find_peer_ctx->total = 1;
2125 else if (find_peer_ctx->current_peers - find_peer_ctx->previous_peers > MAX_FIND_PEER_CUTOFF) /* Found LOTS of peers, still go slowly */
2126 find_peer_ctx->total = find_peer_ctx->last_sent - (find_peer_ctx->last_sent / 8);
2128 find_peer_ctx->total = find_peer_ctx->last_sent * 2;
2130 if (find_peer_ctx->total > max_outstanding_find_peers)
2131 find_peer_ctx->total = max_outstanding_find_peers;
2133 if (find_peer_ctx->total > num_peers) /* Don't try to send more messages than we have peers! */
2134 find_peer_ctx->total = num_peers;
2136 find_peer_ctx->last_sent = find_peer_ctx->total;
2137 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Sending %u find peer messages (goal at least %u connections)\n", find_peer_ctx->total, target_total_connections);
2139 find_peer_offset = GNUNET_TIME_relative_divide(find_peer_delay, find_peer_ctx->total);
2140 for (i = 0; i < find_peer_ctx->total; i++)
2142 test_find_peer = GNUNET_malloc(sizeof(struct TestFindPeer));
2143 /* If we haven't sent any requests yet, choose random peers */
2144 /* Also choose random in _half_ of all cases, so we don't
2145 * get stuck choosing topologically restricted peers with
2146 * few connections that will never be able to find any new
2148 if ((find_peer_ctx->previous_peers == 0) || (i % 2 == 0))
2151 * Attempt to spread find peer requests across even sections of the peer address
2152 * space. Choose basically 1 peer in every num_peers / max_outstanding_requests
2153 * each time, then offset it by a randomish value.
2155 * For instance, if num_peers is 100 and max_outstanding is 10, first chosen peer
2156 * will be between 0 - 10, second between 10 - 20, etc.
2158 random = (num_peers / find_peer_ctx->total) * i;
2159 random = random + GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, (num_peers / find_peer_ctx->total));
2160 if (random >= num_peers)
2162 random = random - num_peers;
2165 random = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers);
2167 test_find_peer->daemon = GNUNET_TESTING_daemon_get(pg, random);
2169 else /* If we have sent requests, choose peers with a low number of connections to send requests from */
2171 peer_count = GNUNET_CONTAINER_heap_remove_root(find_peer_ctx->peer_min_heap);
2172 GNUNET_assert(GNUNET_YES == GNUNET_CONTAINER_multihashmap_remove(find_peer_ctx->peer_hash, &peer_count->peer_id.hashPubKey, peer_count));
2173 test_find_peer->daemon = GNUNET_TESTING_daemon_get_by_id(pg, &peer_count->peer_id);
2174 GNUNET_assert(test_find_peer->daemon != NULL);
2177 test_find_peer->find_peer_context = find_peer_ctx;
2178 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_multiply(find_peer_offset, i), &send_find_peer_request, test_find_peer);
2181 if ((find_peer_ctx->peer_hash == NULL) && (find_peer_ctx->peer_min_heap == NULL))
2183 find_peer_ctx->peer_hash = GNUNET_CONTAINER_multihashmap_create(num_peers);
2184 find_peer_ctx->peer_min_heap = GNUNET_CONTAINER_heap_create(GNUNET_CONTAINER_HEAP_ORDER_MIN);
2188 GNUNET_CONTAINER_multihashmap_iterate(find_peer_ctx->peer_hash, &remove_peer_count, find_peer_ctx);
2189 GNUNET_CONTAINER_multihashmap_destroy(find_peer_ctx->peer_hash);
2190 find_peer_ctx->peer_hash = GNUNET_CONTAINER_multihashmap_create(num_peers);
2193 GNUNET_assert(0 == GNUNET_CONTAINER_multihashmap_size(find_peer_ctx->peer_hash));
2194 GNUNET_assert(0 == GNUNET_CONTAINER_heap_get_size(find_peer_ctx->peer_min_heap));
2199 * Convert unique ID to hash code.
2201 * @param uid unique ID to convert
2202 * @param hash set to uid (extended with zeros)
2205 hash_from_uid (uint32_t uid, GNUNET_HashCode *hash)
2207 memset (hash, 0, sizeof (GNUNET_HashCode));
2208 *((uint32_t *) hash) = uid;
2213 * Set up all of the put and get operations we want to do
2214 * in the current round. Allocate data structure for each,
2215 * add to list, then schedule the actual PUT operations.
2218 setup_puts_and_gets (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
2221 struct TestPutContext *test_put;
2222 struct TestGetContext *test_get;
2224 GNUNET_HashCode uid_hash;
2227 int remember[num_puts][num_peers];
2228 memset(&remember, 0, sizeof(int) * num_puts * num_peers);
2230 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "in setup_puts_and_gets\n");
2231 known_keys = GNUNET_malloc(sizeof(GNUNET_HashCode) * num_puts);
2232 for (i = 0; i < num_puts; i++)
2234 test_put = GNUNET_malloc(sizeof(struct TestPutContext));
2236 GNUNET_CRYPTO_hash_create_random (GNUNET_CRYPTO_QUALITY_WEAK, &known_keys[i]);
2237 /* Set first X bits to match the chosen sybil location if we want to do the sybil attack! */
2238 if (GNUNET_YES == malicious_sybil)
2240 memcpy(&known_keys[i], &sybil_target, sizeof(GNUNET_HashCode) / 2);
2241 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Distance between sybil location and key is %d\n", GNUNET_CRYPTO_hash_matching_bits(&known_keys[i], &sybil_target));
2243 temp_peer = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers);
2244 test_put->daemon = GNUNET_TESTING_daemon_get(pg, temp_peer);
2245 /* Don't start PUTs at malicious peers! */
2246 if (malicious_bloom != NULL)
2249 hash_from_uid(temp_peer, &uid_hash);
2250 while ((GNUNET_YES == GNUNET_CONTAINER_bloomfilter_test(malicious_bloom, &uid_hash)) && (count < num_peers))
2252 temp_peer = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers);
2253 hash_from_uid(temp_peer, &uid_hash);
2254 test_put->daemon = GNUNET_TESTING_daemon_get(pg, temp_peer);
2257 if (count == num_peers)
2258 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Couldn't find peer not in malicious bloom to select!\n");
2261 test_put->next = all_puts;
2262 all_puts = test_put;
2265 for (i = 0; i < num_gets; i++)
2267 test_get = GNUNET_malloc(sizeof(struct TestGetContext));
2268 test_get->uid = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_puts);
2270 while (remember[test_get->uid][temp_daemon] == 1)
2271 temp_daemon = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers);
2272 remember[test_get->uid][temp_daemon] = 1;
2274 temp_peer = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers);
2275 test_get->daemon = GNUNET_TESTING_daemon_get(pg, temp_peer);
2276 /* Don't start GETs at malicious peers! */
2277 if (malicious_bloom != NULL)
2279 hash_from_uid(temp_peer, &uid_hash);
2281 while ((GNUNET_YES == GNUNET_CONTAINER_bloomfilter_test(malicious_bloom, &uid_hash)) && (count < num_peers))
2283 temp_peer = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers);
2284 hash_from_uid(temp_peer, &uid_hash);
2285 test_get->daemon = GNUNET_TESTING_daemon_get(pg, temp_peer);
2288 if (count == num_peers)
2289 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Couldn't find peer not in malicious bloom to select!\n");
2291 test_get->next = all_gets;
2292 all_gets = test_get;
2295 /*GNUNET_SCHEDULER_cancel (die_task);*/
2296 die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, num_puts * 2),
2297 &end_badly, "from do puts");
2298 GNUNET_SCHEDULER_add_now (&do_put, all_puts);
2303 * Set up some all of the put and get operations we want
2304 * to do. Allocate data structure for each, add to list,
2305 * then call actual insert functions.
2308 continue_puts_and_gets (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
2312 struct TopologyIteratorContext *topo_ctx;
2313 struct FindPeerContext *find_peer_context;
2314 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "In continue_puts_and_gets\n");
2315 if ((dhtlog_handle != NULL) && (GNUNET_NO == dhtlog_minimal))
2317 if (settle_time >= 180 * 2)
2318 max = (settle_time / 180) - 2;
2321 for (i = 1; i < max; i++)
2323 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
2324 topo_ctx->current_iteration = i;
2325 topo_ctx->total_iterations = max;
2326 topo_ctx->peers_seen = GNUNET_CONTAINER_multihashmap_create(num_peers);
2327 //fprintf(stderr, "scheduled topology iteration in %d minutes\n", i);
2328 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MINUTES, i * 3), &capture_current_topology, topo_ctx);
2330 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
2331 topo_ctx->cont = &setup_puts_and_gets;
2332 topo_ctx->peers_seen = GNUNET_CONTAINER_multihashmap_create(num_peers);
2333 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "setting setup_puts_and_gets for %d seconds in the future\n", settle_time + 10);
2334 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, (settle_time + 10)), &capture_current_topology, topo_ctx);
2337 GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, (settle_time + 10)), &setup_puts_and_gets, NULL);
2339 if (dhtlog_handle != NULL)
2340 dhtlog_handle->insert_round(DHT_ROUND_NORMAL, rounds_finished);
2343 if ((GNUNET_YES != malicious_after_settle) || (settle_time == 0))
2345 GNUNET_SCHEDULER_add_now(&setup_malicious_peers, NULL);
2349 if ((GNUNET_YES == do_find_peer) && (settle_time > 0))
2351 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Scheduling find peer requests during \"settle\" time.\n");
2352 find_peer_context = GNUNET_malloc(sizeof(struct FindPeerContext));
2353 find_peer_context->count_peers_cb = &count_peers_cb;
2354 find_peer_context->endtime = GNUNET_TIME_relative_to_absolute(GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, settle_time));
2355 GNUNET_SCHEDULER_add_now(&schedule_find_peer_requests, find_peer_context);
2359 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Assuming automatic DHT find peer requests.\n");
2364 * Task to release DHT handles
2367 malicious_disconnect_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
2369 struct MaliciousContext *ctx = cls;
2370 outstanding_malicious--;
2371 malicious_completed++;
2372 ctx->disconnect_task = GNUNET_SCHEDULER_NO_TASK;
2373 GNUNET_DHT_disconnect(ctx->dht_handle);
2374 ctx->dht_handle = NULL;
2377 if (malicious_completed == malicious_getters + malicious_putters + malicious_droppers)
2379 fprintf(stderr, "Finished setting all malicious peers up!\n");
2385 * Task to release DHT handles
2388 malicious_done_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
2390 struct MaliciousContext *ctx = cls;
2391 GNUNET_SCHEDULER_cancel(ctx->disconnect_task);
2392 GNUNET_SCHEDULER_add_now(&malicious_disconnect_task, ctx);
2396 * Set up some data, and call API PUT function
2399 set_malicious (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
2401 struct MaliciousContext *ctx = cls;
2403 if (outstanding_malicious > DEFAULT_MAX_OUTSTANDING_GETS)
2405 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MILLISECONDS, 100), &set_malicious, ctx);
2409 if (ctx->dht_handle == NULL)
2411 ctx->dht_handle = GNUNET_DHT_connect(ctx->daemon->cfg, 1);
2412 outstanding_malicious++;
2415 GNUNET_assert(ctx->dht_handle != NULL);
2419 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Setting peer %s malicious type %d\n",
2420 ctx->daemon->shortname, ctx->malicious_type);
2423 switch (ctx->malicious_type)
2425 case GNUNET_MESSAGE_TYPE_DHT_MALICIOUS_GET:
2426 GNUNET_DHT_set_malicious_getter(ctx->dht_handle, malicious_get_frequency);
2427 GNUNET_SCHEDULER_add_now (&malicious_done_task, ctx);
2429 case GNUNET_MESSAGE_TYPE_DHT_MALICIOUS_PUT:
2430 GNUNET_DHT_set_malicious_putter(ctx->dht_handle, malicious_put_frequency);
2431 GNUNET_SCHEDULER_add_now (&malicious_done_task, ctx);
2433 case GNUNET_MESSAGE_TYPE_DHT_MALICIOUS_DROP:
2434 GNUNET_DHT_set_malicious_dropper(ctx->dht_handle);
2435 GNUNET_SCHEDULER_add_now (&malicious_done_task, ctx);
2441 ctx->disconnect_task = GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_UNIT_FOREVER_REL,
2442 &malicious_disconnect_task, ctx);
2448 * Choose the next peer from the peer group to set as malicious.
2449 * If we are doing a sybil attack, find the nearest peer to the
2450 * sybil location that has not already been set malicious. Otherwise
2451 * just choose a random not already chosen peer.
2453 * @param pg the peer group
2454 * @param bloom the bloomfilter which contains all peer already
2455 * chosen to be malicious
2458 choose_next_malicious (struct GNUNET_TESTING_PeerGroup *pg, struct GNUNET_CONTAINER_BloomFilter *bloom)
2465 struct GNUNET_TESTING_Daemon *temp_daemon;
2466 GNUNET_HashCode uid_hash;
2470 GNUNET_assert (bloom != NULL);
2472 if (GNUNET_YES == malicious_sybil)
2474 for (i = 0; i < num_peers; i++)
2476 temp_daemon = GNUNET_TESTING_daemon_get(pg, i);
2477 hash_from_uid(i, &uid_hash);
2478 /* Check if this peer matches the bloomfilter */
2479 if ((GNUNET_NO == GNUNET_TESTING_daemon_running(temp_daemon)) || (GNUNET_YES == GNUNET_CONTAINER_bloomfilter_test (bloom, &uid_hash)))
2482 bits_match = GNUNET_CRYPTO_hash_matching_bits (&temp_daemon->id.hashPubKey, &sybil_target);
2483 if (bits_match >= curr_distance)
2485 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Found nearer peer %s to %s, old matching bits %d, new %d\n", GNUNET_i2s(&temp_daemon->id), GNUNET_h2s(&sybil_target), curr_distance, bits_match);
2487 curr_distance = bits_match;
2493 nearest = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers);
2494 hash_from_uid(nearest, &uid_hash);
2496 while ((GNUNET_YES == GNUNET_CONTAINER_bloomfilter_test (bloom, &uid_hash)) && (count < num_peers))
2498 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Peer %d already in bloom (tried %d times)\n", nearest, count);
2499 nearest = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers);
2500 hash_from_uid(nearest, &uid_hash);
2503 if (count == num_peers)
2504 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Tried %d times to find a peer, selecting %d at random!!\n", count, nearest);
2511 * Select randomly from set of known peers,
2512 * set the desired number of peers to the
2513 * proper malicious types.
2516 setup_malicious_peers (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
2518 struct MaliciousContext *ctx;
2520 uint32_t temp_daemon;
2521 GNUNET_HashCode uid_hash;
2523 for (i = 0; i < malicious_getters; i++)
2525 ctx = GNUNET_malloc(sizeof(struct MaliciousContext));
2526 temp_daemon = choose_next_malicious(pg, malicious_bloom);
2527 ctx->daemon = GNUNET_TESTING_daemon_get(pg, temp_daemon);
2528 hash_from_uid(temp_daemon, &uid_hash);
2529 GNUNET_CONTAINER_bloomfilter_add(malicious_bloom, &uid_hash);
2530 ctx->malicious_type = GNUNET_MESSAGE_TYPE_DHT_MALICIOUS_GET;
2531 GNUNET_SCHEDULER_add_now (&set_malicious, ctx);
2535 for (i = 0; i < malicious_putters; i++)
2537 ctx = GNUNET_malloc(sizeof(struct MaliciousContext));
2538 temp_daemon = choose_next_malicious(pg, malicious_bloom);
2539 ctx->daemon = GNUNET_TESTING_daemon_get(pg, temp_daemon);
2540 hash_from_uid(temp_daemon, &uid_hash);
2541 GNUNET_CONTAINER_bloomfilter_add(malicious_bloom, &uid_hash);
2542 ctx->malicious_type = GNUNET_MESSAGE_TYPE_DHT_MALICIOUS_PUT;
2543 GNUNET_SCHEDULER_add_now (&set_malicious, ctx);
2547 for (i = 0; i < malicious_droppers; i++)
2549 ctx = GNUNET_malloc(sizeof(struct MaliciousContext));
2550 temp_daemon = choose_next_malicious(pg, malicious_bloom);
2551 ctx->daemon = GNUNET_TESTING_daemon_get(pg, temp_daemon);
2552 hash_from_uid(temp_daemon, &uid_hash);
2553 GNUNET_CONTAINER_bloomfilter_add(malicious_bloom, &uid_hash);
2554 ctx->malicious_type = GNUNET_MESSAGE_TYPE_DHT_MALICIOUS_DROP;
2555 GNUNET_SCHEDULER_add_now (&set_malicious, ctx);
2561 /* Forward declaration */
2563 topology_callback (void *cls,
2564 const struct GNUNET_PeerIdentity *first,
2565 const struct GNUNET_PeerIdentity *second,
2567 const struct GNUNET_CONFIGURATION_Handle *first_cfg,
2568 const struct GNUNET_CONFIGURATION_Handle *second_cfg,
2569 struct GNUNET_TESTING_Daemon *first_daemon,
2570 struct GNUNET_TESTING_Daemon *second_daemon,
2574 * Retry connecting two specific peers until they connect,
2575 * at a specific interval. These two peers previously failed
2576 * to connect, and we hope they continue to so that we can
2577 * debug the reason they are having issues.
2580 repeat_connect (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
2583 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Repeating connect attempt between %s and %s.\n", repeat_connect_peer1->shortname, repeat_connect_peer2->shortname);
2584 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Peer 1 configuration `%s'\n", repeat_connect_peer1->cfgfile);
2585 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Peer 2 configuration `%s'\n", repeat_connect_peer2->cfgfile);
2587 repeat_connect_task = GNUNET_SCHEDULER_NO_TASK;
2588 GNUNET_TESTING_daemons_connect(repeat_connect_peer1,
2589 repeat_connect_peer2,
2590 GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 60),
2591 2, &topology_callback, NULL);
2596 * This function is called whenever a connection attempt is finished between two of
2597 * the started peers (started with GNUNET_TESTING_daemons_start). The total
2598 * number of times this function is called should equal the number returned
2599 * from the GNUNET_TESTING_connect_topology call.
2601 * The emsg variable is NULL on success (peers connected), and non-NULL on
2602 * failure (peers failed to connect).
2605 topology_callback (void *cls,
2606 const struct GNUNET_PeerIdentity *first,
2607 const struct GNUNET_PeerIdentity *second,
2609 const struct GNUNET_CONFIGURATION_Handle *first_cfg,
2610 const struct GNUNET_CONFIGURATION_Handle *second_cfg,
2611 struct GNUNET_TESTING_Daemon *first_daemon,
2612 struct GNUNET_TESTING_Daemon *second_daemon,
2615 struct TopologyIteratorContext *topo_ctx;
2616 unsigned long long duration;
2617 unsigned long long total_duration;
2618 unsigned int new_connections;
2619 unsigned int new_failed_connections;
2620 double conns_per_sec_recent;
2621 double conns_per_sec_total;
2622 double failed_conns_per_sec_recent;
2623 double failed_conns_per_sec_total;
2626 if (repeat_connect_mode == GNUNET_YES)
2628 if ((first_daemon == repeat_connect_peer1) &&
2629 (second_daemon == repeat_connect_peer2))
2631 if (emsg != NULL) /* Peers failed to connect again! */
2633 GNUNET_assert(repeat_connect_task == GNUNET_SCHEDULER_NO_TASK);
2634 repeat_connect_task = GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 60), &repeat_connect, NULL);
2637 else /* Repeat peers actually connected! */
2639 if (repeat_connect_task != GNUNET_SCHEDULER_NO_TASK)
2640 GNUNET_SCHEDULER_cancel(repeat_connect_task);
2641 repeat_connect_peer1 = NULL;
2642 repeat_connect_peer2 = NULL;
2643 repeat_connect_mode = GNUNET_NO;
2644 GNUNET_TESTING_resume_connections(pg);
2645 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Resuming normal connection mode, debug connection was successful!\n");
2651 if (GNUNET_TIME_absolute_get_difference (connect_last_time,
2652 GNUNET_TIME_absolute_get()).rel_value > GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, CONN_UPDATE_DURATION).rel_value)
2654 /* Get number of new connections */
2655 new_connections = total_connections - previous_connections;
2657 /* Get number of new FAILED connections */
2658 new_failed_connections = failed_connections - previous_failed_connections;
2660 /* Get duration in seconds */
2661 duration = GNUNET_TIME_absolute_get_difference (connect_last_time,
2662 GNUNET_TIME_absolute_get()).rel_value / 1000;
2663 total_duration = GNUNET_TIME_absolute_get_difference (connect_start_time,
2664 GNUNET_TIME_absolute_get()).rel_value / 1000;
2666 failed_conns_per_sec_recent = (double)new_failed_connections / duration;
2667 failed_conns_per_sec_total = (double)failed_connections / total_duration;
2668 conns_per_sec_recent = (double)new_connections / duration;
2669 conns_per_sec_total = (double)total_connections / total_duration;
2670 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Recent: %.2f/s, Total: %.2f/s, Recent failed: %.2f/s, total failed %.2f/s\n",
2671 conns_per_sec_recent, CONN_UPDATE_DURATION, conns_per_sec_total,
2672 failed_conns_per_sec_recent, failed_conns_per_sec_total);
2673 connect_last_time = GNUNET_TIME_absolute_get();
2674 previous_connections = total_connections;
2675 previous_failed_connections = failed_connections;
2676 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "have %u total_connections, %u failed\n", total_connections, failed_connections);
2678 /* These conditions likely mean we've entered the death spiral of doom */
2679 if ((total_connections > 20000) &&
2680 (conns_per_sec_recent < 5.0) &&
2681 (conns_per_sec_total > 10.0) &&
2683 (repeat_connect_mode == GNUNET_NO))
2685 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Entering repeat connection attempt mode!\n");
2686 repeat_connect_peer1 = first_daemon;
2687 repeat_connect_peer2 = second_daemon;
2688 repeat_connect_mode = GNUNET_YES;
2689 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Stopping NEW connections from being scheduled!\n");
2690 GNUNET_TESTING_stop_connections(pg);
2691 repeat_connect_task = GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 60), &repeat_connect, NULL);
2698 total_connections++;
2700 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "connected peer %s to peer %s, distance %u\n",
2701 first_daemon->shortname,
2702 second_daemon->shortname,
2708 failed_connections++;
2710 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Failed to connect peer %s to peer %s with error :\n%s\n",
2711 first_daemon->shortname,
2712 second_daemon->shortname, emsg);
2714 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Failed to connect peer %s to peer %s with error :\n%s\n",
2715 first_daemon->shortname,
2716 second_daemon->shortname, emsg);
2721 if ((repeat_connect_mode == GNUNET_YES) )
2725 GNUNET_assert(peer_connect_meter != NULL);
2726 if (GNUNET_YES == update_meter(peer_connect_meter))
2729 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2730 "Created %d total connections, which is our target number! Starting next phase of testing.\n",
2733 if (failed_connections > 0)
2734 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "While connecting, had %u failed connections.\n", failed_connections);
2735 if (dhtlog_handle != NULL)
2737 dhtlog_handle->update_connections (total_connections);
2738 dhtlog_handle->insert_topology(expected_connections);
2742 total_duration = GNUNET_TIME_absolute_get_difference (connect_start_time,
2743 GNUNET_TIME_absolute_get()).rel_value / 1000;
2744 failed_conns_per_sec_total = (double)failed_connections / total_duration;
2745 conns_per_sec_total = (double)total_connections / total_duration;
2746 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Overall connection info --- Total: %u, Total Failed %u/s\n",
2747 total_connections, failed_connections);
2748 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Overall connection info --- Total: %.2f/s, Total Failed %.2f/s\n",
2749 conns_per_sec_total, failed_conns_per_sec_total);
2750 /** Comment out until gauger is ready */
2752 GNUNET_asprintf(&temp_conn_string, "dht_peer_connection_speed");
2753 GNUNET_asprintf(&temp_failed_conn_string, "dht_peer_failed_connection_speed");
2755 GAUGER_COUNTER(temp_conn_string, conns_per_sec_total, trial_to_run, DATE);
2756 GAUGER_COUNTER(temp_failed_conn_string, failed_conns_per_sec_total, trial_to_run, DATE);
2758 GNUNET_free(temp_conn_string);
2759 GNUNET_free(temp_failed_conn_string);
2762 GNUNET_SCHEDULER_cancel (die_task);
2764 if ((GNUNET_YES == dhtlog_minimal) && (NULL != dhtlog_handle))
2766 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
2767 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Setting continue gets and puts as topo_cont\n");
2768 topo_ctx->cont = &continue_puts_and_gets;
2769 topo_ctx->peers_seen = GNUNET_CONTAINER_multihashmap_create(num_peers);
2770 GNUNET_SCHEDULER_add_now(&capture_current_topology, topo_ctx);
2774 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "For some reason, NOT scheduling final topology capture (settle_time %d, dhtlog_handle %s)!\n", settle_time, dhtlog_handle);
2775 GNUNET_SCHEDULER_add_now(&continue_puts_and_gets, NULL);
2778 else if (total_connections + failed_connections == expected_connections)
2780 GNUNET_SCHEDULER_cancel (die_task);
2781 die_task = GNUNET_SCHEDULER_add_now (&end_badly, "from topology_callback (too many failed connections)");
2786 peers_started_callback (void *cls,
2787 const struct GNUNET_PeerIdentity *id,
2788 const struct GNUNET_CONFIGURATION_Handle *cfg,
2789 struct GNUNET_TESTING_Daemon *d, const char *emsg)
2793 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Failed to start daemon with error: `%s'\n",
2797 GNUNET_assert (id != NULL);
2800 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Started daemon %llu out of %llu\n",
2801 (num_peers - peers_left) + 1, num_peers);
2806 if (GNUNET_YES == update_meter(peer_start_meter))
2809 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2810 "All %d daemons started, now connecting peers!\n",
2813 GNUNET_SCHEDULER_cancel (die_task);
2815 expected_connections = UINT_MAX;
2816 if ((pg != NULL) && (peers_left == 0))
2818 connect_start_time = GNUNET_TIME_absolute_get();
2819 expected_connections = GNUNET_TESTING_connect_topology(pg,
2820 connect_topology, connect_topology_option,
2821 connect_topology_option_modifier,
2822 connect_timeout, connect_attempts,
2825 peer_connect_meter = create_meter(expected_connections, "Peer connection ", GNUNET_YES);
2826 fprintf(stderr, "Have %d expected connections\n", expected_connections);
2829 if (expected_connections == GNUNET_SYSERR)
2831 die_task = GNUNET_SCHEDULER_add_now (&end_badly, "from connect topology (bad return)");
2834 die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, DEFAULT_CONNECT_TIMEOUT * expected_connections),
2835 &end_badly, "from connect topology (timeout)");
2844 peers_left = num_peers; /* Reset counter */
2845 if (GNUNET_TESTING_create_topology (pg, topology, blacklist_topology, blacklist_transports) != GNUNET_SYSERR)
2847 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2848 "Topology set up, now starting peers!\n");
2849 GNUNET_TESTING_daemons_continue_startup(pg);
2853 GNUNET_SCHEDULER_cancel (die_task);
2854 die_task = GNUNET_SCHEDULER_add_now (&end_badly, "from create topology (bad return)");
2856 GNUNET_free_non_null(blacklist_transports);
2857 GNUNET_SCHEDULER_cancel (die_task);
2858 die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(seconds_per_peer_start, num_peers),
2859 &end_badly, "from continue startup (timeout)");
2863 * Callback indicating that the hostkey was created for a peer.
2866 * @param id the peer identity
2867 * @param d the daemon handle (pretty useless at this point, remove?)
2868 * @param emsg non-null on failure
2871 hostkey_callback (void *cls,
2872 const struct GNUNET_PeerIdentity *id,
2873 struct GNUNET_TESTING_Daemon *d,
2878 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Hostkey callback received error: %s\n", emsg);
2882 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2883 "Hostkey (%d/%d) created for peer `%s'\n",
2884 num_peers - peers_left, num_peers, GNUNET_i2s(id));
2888 if (GNUNET_YES == update_meter(hostkey_meter))
2890 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2891 "All %d hostkeys created, now creating topology!\n",
2893 GNUNET_SCHEDULER_cancel (die_task);
2894 /* Set up task in case topology creation doesn't finish
2895 * within a reasonable amount of time */
2896 die_task = GNUNET_SCHEDULER_add_delayed (DEFAULT_TOPOLOGY_TIMEOUT,
2897 &end_badly, "from create_topology");
2898 GNUNET_SCHEDULER_add_now(&create_topology, NULL);
2907 const char *cfgfile, const struct GNUNET_CONFIGURATION_Handle *cfg)
2910 struct GNUNET_DHTLOG_TrialInfo trial_info;
2911 struct GNUNET_TESTING_Host *hosts;
2912 struct GNUNET_TESTING_Host *temphost;
2913 struct GNUNET_TESTING_Host *tempnext;
2915 char *connect_topology_str;
2916 char *blacklist_topology_str;
2917 char *connect_topology_option_str;
2918 char *connect_topology_option_modifier_string;
2920 char *topology_percentage_str;
2921 float topology_percentage;
2922 char *topology_probability_str;
2924 float topology_probability;
2925 unsigned long long temp_config_number;
2926 unsigned long long trial_to_run;
2929 int strict_kademlia;
2933 char *churn_filename;
2940 rounds_finished = 0;
2941 memset(&trial_info, 0, sizeof(struct GNUNET_DHTLOG_TrialInfo));
2942 /* Get path from configuration file */
2943 if (GNUNET_YES != GNUNET_CONFIGURATION_get_value_string(cfg, "paths", "servicehome", &test_directory))
2949 /* Get number of peers to start from configuration */
2950 if (GNUNET_SYSERR ==
2951 GNUNET_CONFIGURATION_get_value_number (cfg, "testing", "num_peers",
2954 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2955 "Number of peers must be specified in section %s option %s\n", "TESTING", "NUM_PEERS");
2957 GNUNET_assert(num_peers > 0 && num_peers < ULONG_MAX);
2960 GNUNET_CONFIGURATION_get_value_number (cfg, "testing", "connect_timeout",
2961 &temp_config_number))
2963 GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, temp_config_number);
2966 GNUNET_log(GNUNET_ERROR_TYPE_ERROR, "Must provide option %s:%s!\n", "testing", "connect_timeout");
2972 GNUNET_CONFIGURATION_get_value_number (cfg, "testing", "connect_attempts",
2975 GNUNET_log(GNUNET_ERROR_TYPE_ERROR, "Must provide option %s:%s!\n", "testing", "connect_attempts");
2980 GNUNET_CONFIGURATION_get_value_number (cfg, "testing", "max_outstanding_connections",
2981 &max_outstanding_connections))
2983 GNUNET_log(GNUNET_ERROR_TYPE_ERROR, "Must provide option %s:%s!\n", "testing", "max_outstanding_connections");
2988 GNUNET_CONFIGURATION_get_value_number (cfg, "testing", "max_concurrent_ssh",
2989 &max_concurrent_ssh))
2991 GNUNET_log(GNUNET_ERROR_TYPE_ERROR, "Must provide option %s:%s!\n", "testing", "max_concurrent_ssh");
2996 * Get DHT specific testing options.
2998 if ((GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht_testing", "mysql_logging")) ||
2999 (GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht_testing", "mysql_logging_extended")) ||
3000 (GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht_testing", "mysql_logging_minimal")))
3002 if (GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht_testing", "mysql_logging_minimal"))
3003 dhtlog_minimal = GNUNET_YES;
3005 dhtlog_handle = GNUNET_DHTLOG_connect(cfg);
3006 if (dhtlog_handle == NULL)
3008 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
3009 "Could not connect to mysql server for logging, will NOT log dht operations!");
3015 stop_closest = GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht", "stop_on_closest");
3016 if (stop_closest == GNUNET_SYSERR)
3017 stop_closest = GNUNET_NO;
3019 stop_found = GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht", "stop_found");
3020 if (stop_found == GNUNET_SYSERR)
3021 stop_found = GNUNET_NO;
3023 strict_kademlia = GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht", "strict_kademlia");
3024 if (strict_kademlia == GNUNET_SYSERR)
3025 strict_kademlia = GNUNET_NO;
3028 GNUNET_CONFIGURATION_get_value_string (cfg, "dht_testing", "comment",
3030 trialmessage = NULL;
3033 /** Check for a churn file to do churny simulation */
3035 GNUNET_CONFIGURATION_get_value_string(cfg, "dht_testing", "churn_file",
3038 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Reading churn data from %s\n", churn_filename);
3039 if (GNUNET_OK != GNUNET_DISK_file_test (churn_filename))
3041 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Error reading churn file!\n");
3042 GNUNET_free_non_null(trialmessage);
3043 GNUNET_free(churn_filename);
3046 if ((0 != STAT (churn_filename, &frstat)) || (frstat.st_size == 0))
3048 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
3049 "Could not open file specified for churn data, ending test!");
3051 GNUNET_free_non_null(trialmessage);
3052 GNUNET_free(churn_filename);
3056 churn_data = GNUNET_malloc_large (frstat.st_size);
3057 GNUNET_assert(churn_data != NULL);
3058 if (frstat.st_size !=
3059 GNUNET_DISK_fn_read (churn_filename, churn_data, frstat.st_size))
3061 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
3062 "Could not read file %s specified for churn, ending test!", churn_filename);
3063 GNUNET_free (churn_filename);
3064 GNUNET_free (churn_data);
3065 GNUNET_free_non_null(trialmessage);
3069 GNUNET_free_non_null(churn_filename);
3073 /* Read the first line */
3074 while (count < frstat.st_size)
3077 if (((churn_data[count] == '\n')) && (buf != &churn_data[count]))
3079 churn_data[count] = '\0';
3080 if (1 != sscanf(buf, "%u", &churn_rounds))
3082 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Failed to read number of rounds from churn file, ending test!\n");
3084 GNUNET_free_non_null(trialmessage);
3085 GNUNET_free_non_null(churn_data);
3088 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Read %u rounds from churn file\n", churn_rounds);
3089 buf = &churn_data[count + 1];
3090 churn_array = GNUNET_malloc(sizeof(unsigned int) * churn_rounds);
3091 break; /* Done with this part */
3095 if (GNUNET_OK != GNUNET_CONFIGURATION_get_value_number(cfg, "dht_testing", "churns_per_round", &churns_per_round))
3097 churns_per_round = (unsigned long long)churn_rounds;
3101 while ((count < frstat.st_size) && (line_number < churn_rounds))
3104 if (((churn_data[count] == '\n')) && (buf != &churn_data[count]))
3106 churn_data[count] = '\0';
3108 ret = sscanf(buf, "%u", &churn_array[line_number]);
3111 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Read %u peers in round %u\n", churn_array[line_number], line_number);
3116 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Error reading line `%s' in hostfile\n", buf);
3117 buf = &churn_data[count + 1];
3120 buf = &churn_data[count + 1];
3122 else if (churn_data[count] == '\n') /* Blank line */
3123 buf = &churn_data[count + 1];
3126 GNUNET_free_non_null(churn_data);
3128 /* Check for a hostfile containing user@host:port triples */
3130 GNUNET_CONFIGURATION_get_value_string (cfg, "testing", "hostfile",
3137 if (hostfile != NULL)
3139 if (GNUNET_OK != GNUNET_DISK_file_test (hostfile))
3140 GNUNET_DISK_fn_write (hostfile, NULL, 0, GNUNET_DISK_PERM_USER_READ
3141 | GNUNET_DISK_PERM_USER_WRITE);
3142 if ((0 != STAT (hostfile, &frstat)) || (frstat.st_size == 0))
3144 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
3145 "Could not open file specified for host list, ending test!");
3147 GNUNET_free_non_null(trialmessage);
3148 GNUNET_free(hostfile);
3152 data = GNUNET_malloc_large (frstat.st_size);
3153 GNUNET_assert(data != NULL);
3154 if (frstat.st_size !=
3155 GNUNET_DISK_fn_read (hostfile, data, frstat.st_size))
3157 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
3158 "Could not read file %s specified for host list, ending test!", hostfile);
3159 GNUNET_free (hostfile);
3161 GNUNET_free_non_null(trialmessage);
3165 GNUNET_free_non_null(hostfile);
3169 while (count < frstat.st_size - 1)
3172 /* if (((data[count] == '\n') || (data[count] == '\0')) && (buf != &data[count]))*/
3173 if (((data[count] == '\n')) && (buf != &data[count]))
3176 temphost = GNUNET_malloc(sizeof(struct GNUNET_TESTING_Host));
3177 ret = sscanf(buf, "%a[a-zA-Z0-9_]@%a[a-zA-Z0-9.]:%hd", &temphost->username, &temphost->hostname, &temphost->port);
3180 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Successfully read host %s, port %d and user %s from file\n", temphost->hostname, temphost->port, temphost->username);
3184 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Error reading line `%s' in hostfile\n", buf);
3185 GNUNET_free(temphost);
3186 buf = &data[count + 1];
3189 /* temphost->hostname = buf; */
3190 temphost->next = hosts;
3192 buf = &data[count + 1];
3194 else if ((data[count] == '\n') || (data[count] == '\0'))
3195 buf = &data[count + 1];
3198 GNUNET_free_non_null(data);
3200 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "malicious_getters",
3201 &malicious_getters))
3202 malicious_getters = 0;
3205 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "malicious_putters",
3206 &malicious_putters))
3207 malicious_putters = 0;
3210 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "malicious_droppers",
3211 &malicious_droppers))
3212 malicious_droppers = 0;
3215 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "settle_time",
3219 if (GNUNET_SYSERR ==
3220 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "num_puts",
3222 num_puts = num_peers;
3224 if (GNUNET_SYSERR ==
3225 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "put_replication",
3227 put_replication = DEFAULT_PUT_REPLICATION;
3229 if (GNUNET_SYSERR ==
3230 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "num_gets",
3232 num_gets = num_peers;
3234 if (GNUNET_SYSERR ==
3235 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "get_replication",
3237 get_replication = DEFAULT_GET_REPLICATION;
3240 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "find_peer_delay",
3241 &temp_config_number))
3242 find_peer_delay = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_config_number);
3244 find_peer_delay = DEFAULT_FIND_PEER_DELAY;
3247 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "concurrent_find_peers",
3248 &temp_config_number))
3249 max_outstanding_find_peers = temp_config_number;
3251 max_outstanding_find_peers = DEFAULT_MAX_OUTSTANDING_FIND_PEERS;
3254 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "get_timeout",
3255 &temp_config_number))
3256 get_timeout = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_config_number);
3258 get_timeout = DEFAULT_GET_TIMEOUT;
3261 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "concurrent_puts",
3262 &temp_config_number))
3263 max_outstanding_puts = temp_config_number;
3265 max_outstanding_puts = DEFAULT_MAX_OUTSTANDING_PUTS;
3268 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "concurrent_gets",
3269 &temp_config_number))
3270 max_outstanding_gets = temp_config_number;
3272 max_outstanding_gets = DEFAULT_MAX_OUTSTANDING_GETS;
3275 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "timeout",
3276 &temp_config_number))
3277 all_get_timeout = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_config_number);
3279 all_get_timeout.rel_value = get_timeout.rel_value * num_gets;
3282 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "get_delay",
3283 &temp_config_number))
3284 get_delay = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_config_number);
3286 get_delay = DEFAULT_GET_DELAY;
3289 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "put_delay",
3290 &temp_config_number))
3291 put_delay = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_config_number);
3293 put_delay = DEFAULT_PUT_DELAY;
3296 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "peer_start_timeout",
3297 &temp_config_number))
3298 seconds_per_peer_start = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_config_number);
3300 seconds_per_peer_start = DEFAULT_SECONDS_PER_PEER_START;
3303 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "data_size",
3304 &temp_config_number))
3305 test_data_size = temp_config_number;
3307 test_data_size = DEFAULT_TEST_DATA_SIZE;
3310 * Get testing related options.
3312 if (GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno(cfg, "DHT_TESTING", "REPLICATE_SAME"))
3313 replicate_same = GNUNET_YES;
3316 * Get testing related options.
3318 if (GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno(cfg, "DHT_TESTING", "GET_FROM_SAME"))
3319 get_from_same = GNUNET_YES;
3322 if (GNUNET_NO == GNUNET_CONFIGURATION_get_value_time (cfg, "DHT_TESTING",
3323 "MALICIOUS_GET_FREQUENCY",
3324 &malicious_get_frequency))
3325 malicious_get_frequency = DEFAULT_MALICIOUS_GET_FREQUENCY;
3328 if (GNUNET_NO == GNUNET_CONFIGURATION_get_value_time (cfg, "DHT_TESTING",
3329 "MALICIOUS_PUT_FREQUENCY",
3330 &malicious_put_frequency))
3331 malicious_put_frequency = DEFAULT_MALICIOUS_PUT_FREQUENCY;
3333 if (GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno(cfg, "DHT_TESTING", "MALICIOUS_AFTER_SETTLE"))
3334 malicious_after_settle = GNUNET_YES;
3336 if (GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno(cfg, "DHT_TESTING", "MALICIOUS_SYBIL"))
3338 /* Set up the malicious target at random for this round */
3339 GNUNET_CRYPTO_hash_create_random (GNUNET_CRYPTO_QUALITY_WEAK, &sybil_target);
3340 malicious_sybil = GNUNET_YES;
3343 /* Create the bloomfilter for choosing which peers to set malicious */
3345 /* Bloomfilter size must be 2^k for some integer k */
3347 while (1 << k < malicious_droppers)
3349 if (malicious_droppers > 0)
3350 malicious_bloom = GNUNET_CONTAINER_bloomfilter_init (NULL, 1 << k, DHT_BLOOM_K);
3352 /* The normal behavior of the DHT is to do find peer requests
3353 * on its own. Only if this is explicitly turned off should
3354 * the testing driver issue find peer requests (even though
3355 * this is likely the default when testing).
3358 GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht",
3361 do_find_peer = GNUNET_YES;
3365 GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht",
3368 in_dht_replication = GNUNET_YES;
3371 if (GNUNET_YES != GNUNET_CONFIGURATION_get_value_number (cfg, "DHT_TESTING",
3378 if (GNUNET_YES == GNUNET_CONFIGURATION_get_value_number (cfg, "DHT_TESTING",
3380 &temp_config_number))
3382 find_peer_delay = GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, temp_config_number);
3385 find_peer_delay = DEFAULT_FIND_PEER_DELAY;
3387 if (GNUNET_YES != GNUNET_CONFIGURATION_get_value_number(cfg, "DHT_TESTING", "ROUND_DELAY", &round_delay))
3390 if (GNUNET_NO == GNUNET_CONFIGURATION_get_value_number (cfg, "DHT_TESTING",
3391 "OUTSTANDING_FIND_PEERS",
3392 &max_outstanding_find_peers))
3393 max_outstanding_find_peers = DEFAULT_MAX_OUTSTANDING_FIND_PEERS;
3395 if (GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno(cfg, "dht", "strict_kademlia"))
3396 max_outstanding_find_peers = max_outstanding_find_peers * 1;
3398 find_peer_offset = GNUNET_TIME_relative_divide (find_peer_delay, max_outstanding_find_peers);
3400 if (GNUNET_SYSERR ==
3401 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "num_rounds",
3407 if ((GNUNET_SYSERR ==
3408 GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing", "target_total_connections",
3409 &target_total_connections)) ||
3410 (target_total_connections == 0))
3412 target_total_connections = connection_estimate(num_peers, DEFAULT_BUCKET_SIZE);
3415 topology_str = NULL;
3417 GNUNET_CONFIGURATION_get_value_string(cfg, "testing", "topology",
3418 &topology_str)) && (GNUNET_NO == GNUNET_TESTING_topology_get(&topology, topology_str)))
3420 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
3421 "Invalid topology `%s' given for section %s option %s\n", topology_str, "TESTING", "TOPOLOGY");
3422 topology = GNUNET_TESTING_TOPOLOGY_CLIQUE; /* Defaults to NONE, so set better default here */
3426 GNUNET_CONFIGURATION_get_value_string (cfg, "testing", "percentage",
3427 &topology_percentage_str))
3428 topology_percentage = 0.5;
3431 topology_percentage = atof (topology_percentage_str);
3432 GNUNET_free(topology_percentage_str);
3436 GNUNET_CONFIGURATION_get_value_string (cfg, "testing", "probability",
3437 &topology_probability_str))
3438 topology_probability = 0.5;
3441 topology_probability = atof (topology_probability_str);
3442 GNUNET_free(topology_probability_str);
3446 GNUNET_CONFIGURATION_get_value_string(cfg, "testing", "connect_topology",
3447 &connect_topology_str)) && (GNUNET_NO == GNUNET_TESTING_topology_get(&connect_topology, connect_topology_str)))
3449 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
3450 "Invalid connect topology `%s' given for section %s option %s\n", connect_topology_str, "TESTING", "CONNECT_TOPOLOGY");
3452 GNUNET_free_non_null(connect_topology_str);
3455 GNUNET_CONFIGURATION_get_value_string(cfg, "testing", "connect_topology_option",
3456 &connect_topology_option_str)) && (GNUNET_NO == GNUNET_TESTING_topology_option_get(&connect_topology_option, connect_topology_option_str)))
3458 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
3459 "Invalid connect topology option `%s' given for section %s option %s\n", connect_topology_option_str, "TESTING", "CONNECT_TOPOLOGY_OPTION");
3460 connect_topology_option = GNUNET_TESTING_TOPOLOGY_OPTION_ALL; /* Defaults to NONE, set to ALL */
3462 GNUNET_free_non_null(connect_topology_option_str);
3465 GNUNET_CONFIGURATION_get_value_string (cfg, "testing", "connect_topology_option_modifier",
3466 &connect_topology_option_modifier_string))
3468 if (sscanf(connect_topology_option_modifier_string, "%lf", &connect_topology_option_modifier) != 1)
3470 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
3471 _("Invalid value `%s' for option `%s' in section `%s': expected float\n"),
3472 connect_topology_option_modifier_string,
3473 "connect_topology_option_modifier",
3476 GNUNET_free (connect_topology_option_modifier_string);
3479 if (GNUNET_YES != GNUNET_CONFIGURATION_get_value_string (cfg, "testing", "blacklist_transports",
3480 &blacklist_transports))
3481 blacklist_transports = NULL;
3484 GNUNET_CONFIGURATION_get_value_string(cfg, "testing", "blacklist_topology",
3485 &blacklist_topology_str)) &&
3486 (GNUNET_NO == GNUNET_TESTING_topology_get(&blacklist_topology, blacklist_topology_str)))
3488 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
3489 "Invalid topology `%s' given for section %s option %s\n", topology_str, "TESTING", "BLACKLIST_TOPOLOGY");
3491 GNUNET_free_non_null(topology_str);
3492 GNUNET_free_non_null(blacklist_topology_str);
3494 /* Set peers_left so we know when all peers started */
3495 peers_left = num_peers;
3498 /* Set up a task to end testing if peer start fails */
3499 die_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(seconds_per_peer_start, num_peers),
3500 &end_badly, "didn't generate all hostkeys within allowed startup time!");
3502 if (dhtlog_handle == NULL)
3503 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
3504 "dhtlog_handle is NULL!");
3506 trial_info.other_identifier = (unsigned int)trial_to_run;
3507 trial_info.num_nodes = peers_left;
3508 trial_info.topology = topology;
3509 trial_info.blacklist_topology = blacklist_topology;
3510 trial_info.connect_topology = connect_topology;
3511 trial_info.connect_topology_option = connect_topology_option;
3512 trial_info.connect_topology_option_modifier = connect_topology_option_modifier;
3513 trial_info.topology_percentage = topology_percentage;
3514 trial_info.topology_probability = topology_probability;
3515 trial_info.puts = num_puts;
3516 trial_info.gets = num_gets;
3517 trial_info.concurrent = max_outstanding_gets;
3518 trial_info.settle_time = settle_time;
3519 trial_info.num_rounds = total_rounds;
3520 trial_info.malicious_getters = malicious_getters;
3521 trial_info.malicious_putters = malicious_putters;
3522 trial_info.malicious_droppers = malicious_droppers;
3523 trial_info.malicious_get_frequency = malicious_get_frequency.rel_value;
3524 trial_info.malicious_put_frequency = malicious_put_frequency.rel_value;
3525 trial_info.stop_closest = stop_closest;
3526 trial_info.stop_found = stop_found;
3527 trial_info.strict_kademlia = strict_kademlia;
3529 if (trialmessage != NULL)
3530 trial_info.message = trialmessage;
3532 trial_info.message = "";
3534 if (dhtlog_handle != NULL)
3535 dhtlog_handle->insert_trial(&trial_info);
3537 GNUNET_free_non_null(trialmessage);
3539 hostkey_meter = create_meter(peers_left, "Hostkeys created ", GNUNET_YES);
3540 peer_start_meter = create_meter(peers_left, "Peers started ", GNUNET_YES);
3542 put_meter = create_meter(num_puts, "Puts completed ", GNUNET_YES);
3543 get_meter = create_meter(num_gets, "Gets completed ", GNUNET_YES);
3544 pg = GNUNET_TESTING_daemons_start (cfg,
3546 max_outstanding_connections,
3548 GNUNET_TIME_relative_multiply(seconds_per_peer_start, num_peers),
3549 &hostkey_callback, NULL,
3550 &peers_started_callback, NULL,
3551 &topology_callback, NULL,
3554 while (temphost != NULL)
3556 tempnext = temphost->next;
3557 GNUNET_free (temphost->username);
3558 GNUNET_free (temphost->hostname);
3559 GNUNET_free (temphost);
3560 temphost = tempnext;
3565 main (int argc, char *argv[])
3568 struct GNUNET_GETOPT_CommandLineOption options[] = {
3569 GNUNET_GETOPT_OPTION_END
3572 ret = GNUNET_PROGRAM_run (argc,
3573 argv, "gnunet-dht-driver", "nohelp",
3574 options, &run, &ok);
3576 if (malicious_bloom != NULL)
3577 GNUNET_CONTAINER_bloomfilter_free (malicious_bloom);
3579 if (ret != GNUNET_OK)
3581 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "`gnunet-dht-driver': Failed with error code %d\n", ret);
3585 * Need to remove base directory, subdirectories taken care
3586 * of by the testing framework.
3588 if (GNUNET_DISK_directory_remove (test_directory) != GNUNET_OK)
3590 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Failed to remove testing directory %s\n", test_directory);
3595 /* end of gnunet-dht-driver.c */