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;
278 /** Node in the heap */
279 struct GNUNET_CONTAINER_HeapNode *heap_node;
281 /** Peer the count refers to */
282 struct GNUNET_PeerIdentity peer_id;
284 /** Count of connections this peer has */
289 * Context for sending out find peer requests.
291 struct FindPeerContext
294 * How long to send find peer requests, once the settle time
295 * is over don't send any more out!
297 struct GNUNET_TIME_Absolute endtime;
300 * Number of connections in the current topology
301 * (after this round of find peer requests has ended).
303 unsigned int current_peers;
306 * Number of connections in the current topology
307 * (before this round of find peer requests started).
309 unsigned int previous_peers;
312 * Number of find peer requests we have currently
315 unsigned int outstanding;
318 * Number of find peer requests to send in this round.
323 * Number of find peer requests sent last time around.
325 unsigned int last_sent;
328 * Hashmap of peers in the current topology, value
329 * is a PeerCount, with the number of connections
332 struct GNUNET_CONTAINER_MultiHashMap *peer_hash;
335 * Min heap which orders values in the peer_hash for
338 struct GNUNET_CONTAINER_Heap *peer_min_heap;
341 * Callback for counting the peers in the current topology.
343 GNUNET_TESTING_NotifyTopology count_peers_cb;
349 * Next full round (puts + gets).
354 * Next round of gets.
359 * Next round of puts.
364 * Next round of churn.
372 * How long to try to connect two peers.
374 struct GNUNET_TIME_Relative connect_timeout;
377 * How many times to re-attempt connecting two peers.
379 static unsigned long long connect_attempts;
382 * Timeout to let all GET requests happen.
384 static struct GNUNET_TIME_Relative all_get_timeout;
389 static struct GNUNET_TIME_Relative get_timeout;
392 * Time to allow for GET requests to be sent to service.
394 static struct GNUNET_TIME_Relative get_delay;
397 * Time to allow for PUT requests to be sent to service.
399 static struct GNUNET_TIME_Relative put_delay;
402 * Delay between sending find peer requests (if
403 * handled by the driver, no effect if sent by service).
405 static struct GNUNET_TIME_Relative find_peer_delay;
408 * Time between find peer requests
409 * (find_peer_delay / max_outstanding_find_peer)
411 static struct GNUNET_TIME_Relative find_peer_offset;
414 * How many seconds to allow each peer to start.
416 static struct GNUNET_TIME_Relative seconds_per_peer_start;
419 * At what time did we start the connection process.
421 static struct GNUNET_TIME_Absolute connect_start_time;
424 * What was the last time we updated connection/second information.
426 static struct GNUNET_TIME_Absolute connect_last_time;
429 * Boolean value, should the driver issue find peer requests
430 * (GNUNET_YES) or should it be left to the service (GNUNET_NO)
432 static unsigned int do_find_peer;
435 * Whether or not to insert gauger data.
437 static unsigned int insert_gauger_data;
441 * Are we currently trying to connect two peers repeatedly?
443 static unsigned int repeat_connect_mode;
446 * Task for repeating connects.
448 GNUNET_SCHEDULER_TaskIdentifier repeat_connect_task;
450 struct GNUNET_TESTING_Daemon *repeat_connect_peer1;
451 struct GNUNET_TESTING_Daemon *repeat_connect_peer2;
455 * Boolean value, should replication be done by the dht
456 * service (GNUNET_YES) or by the driver (GNUNET_NO)
458 static unsigned int in_dht_replication;
461 * Size of test data to insert/retrieve during testing.
463 static unsigned long long test_data_size = DEFAULT_TEST_DATA_SIZE;
466 * Maximum number of concurrent connections to peers.
468 static unsigned long long max_outstanding_connections;
471 * Maximum number of concurrent ssh instances to peers.
473 static unsigned long long max_concurrent_ssh;
476 * Maximum number of concurrent PUT requests.
478 static unsigned long long max_outstanding_puts = DEFAULT_MAX_OUTSTANDING_PUTS;
481 * Maximum number of concurrent GET requests.
483 static unsigned long long max_outstanding_gets = DEFAULT_MAX_OUTSTANDING_GETS;
486 * Number of nodes issuing malicious GET messages.
488 static unsigned long long malicious_getters;
491 * Maximum number of concurrent find peer messages being sent.
493 static unsigned long long max_outstanding_find_peers;
496 * Number of nodes issuing malicious PUT messages.
498 static unsigned long long malicious_putters;
501 * Time (in seconds) to delay between rounds.
503 static unsigned long long round_delay;
506 * The identifier for this trial (if we have one)
507 * for external data collection.
509 static unsigned long long trial_to_run;
512 * How many malicious droppers to seed in the network.
514 static unsigned long long malicious_droppers;
517 * Bloom filter to restrict malicious nodes chosen.
519 struct GNUNET_CONTAINER_BloomFilter *malicious_bloom;
522 * Whether malicious droppers should be chosen based on proximity to a key.
524 static int malicious_sybil;
527 * Target for the malicious sybil nodes (choose the closest to this key).
529 static GNUNET_HashCode sybil_target;
532 * How often to send malicious GET messages.
534 static struct GNUNET_TIME_Relative malicious_get_frequency;
537 * How often to send malicious PUT messages.
539 static struct GNUNET_TIME_Relative malicious_put_frequency;
542 * How long to send find peer requests.
544 static unsigned long long settle_time;
547 * Handle to the dhtlog service.
549 static struct GNUNET_DHTLOG_Handle *dhtlog_handle;
552 * Replication value for GET requests.
554 static unsigned long long get_replication;
557 * Replication value for PUT requests.
559 static unsigned long long put_replication;
562 * If GNUNET_YES, insert data at the same peers every time.
563 * Otherwise, choose a new random peer to insert at each time.
565 static unsigned int replicate_same;
568 * If GNUNET_YES, issue GET requests at the same peers every time.
569 * Otherwise, choose a new random peer/data combination to search
572 static unsigned int get_from_same;
575 * Should malicious peers be set after allowing for settle time?
576 * Default is to set them malicious after initial connection setup.
578 static unsigned int malicious_after_settle;
581 * Number of rounds for testing (PUTS + GETS)
583 static unsigned long long total_rounds;
586 * Target number of connections (will stop sending find peer
587 * messages when this number is exceeded)
589 static unsigned long long target_total_connections;
592 * Number of rounds already run
594 static unsigned int rounds_finished;
597 * Number of rounds of churn to read from the file (first line, should be a single number).
599 static unsigned int churn_rounds;
602 * Current round we are in for churn, tells us how many peers to connect/disconnect.
604 static unsigned int current_churn_round;
607 * Number of times to churn per round
609 static unsigned long long churns_per_round;
612 * Array of churn values.
614 static unsigned int *churn_array;
617 * Hash map of stats contexts.
619 static struct GNUNET_CONTAINER_MultiHashMap *stats_map;
622 * LL of malicious settings.
624 struct MaliciousContext *all_malicious;
627 * List of GETS to perform
629 struct TestGetContext *all_gets;
632 * List of PUTS to perform
634 struct TestPutContext *all_puts;
637 * Directory to store temporary data in, defined in config file
639 static char *test_directory;
642 * Variable used to store the number of connections we should wait for.
644 static unsigned int expected_connections;
647 * Variable used to keep track of how many peers aren't yet started.
649 static unsigned long long peers_left;
652 * Handle to the set of all peers run for this test.
654 static struct GNUNET_TESTING_PeerGroup *pg;
657 * Global config handle.
659 static const struct GNUNET_CONFIGURATION_Handle *config;
662 * Total number of peers to run, set based on config file.
664 static unsigned long long num_peers;
667 * Total number of items to insert.
669 static unsigned long long num_puts;
672 * How many puts do we currently have in flight?
674 static unsigned long long outstanding_puts;
677 * How many puts are done?
679 static unsigned long long puts_completed;
682 * Total number of items to attempt to get.
684 static unsigned long long num_gets;
687 * How many puts do we currently have in flight?
689 static unsigned long long outstanding_gets;
692 * How many gets are done?
694 static unsigned long long gets_completed;
697 * Total number of items to attempt to get.
699 static unsigned long long cumulative_num_gets;
702 * How many gets are done?
704 static unsigned long long cumulative_successful_gets;
707 * How many gets failed?
709 static unsigned long long gets_failed;
712 * How many malicious control messages do
713 * we currently have in flight?
715 static unsigned long long outstanding_malicious;
718 * How many set malicious peers are done?
720 static unsigned int malicious_completed;
723 * For gauger logging, what specific identifier (svn revision)
726 static unsigned long long revision;
729 * Global used to count how many connections we have currently
730 * been notified about (how many times has topology_callback been called
733 static unsigned int total_connections;
736 * Previous connections, for counting new connections during some duration.
738 static unsigned int previous_connections;
741 * For counting failed connections during some duration.
743 static unsigned int previous_failed_connections;
746 * Global used to count how many failed connections we have
747 * been notified about (how many times has topology_callback
748 * been called with failure?)
750 static unsigned int failed_connections;
753 * If GNUNET_YES, only log PUT/GET round data to mysql, otherwise
754 * log everything (including each dht service logging).
756 static unsigned int dhtlog_minimal;
758 /* Task handle to use to schedule shutdown if something goes wrong */
759 GNUNET_SCHEDULER_TaskIdentifier die_task;
761 static char *blacklist_transports;
763 static enum GNUNET_TESTING_Topology topology;
765 static enum GNUNET_TESTING_Topology blacklist_topology =
766 GNUNET_TESTING_TOPOLOGY_NONE; /* Don't do any blacklisting */
768 static enum GNUNET_TESTING_Topology connect_topology =
769 GNUNET_TESTING_TOPOLOGY_NONE; /* NONE actually means connect all allowed peers */
771 static enum GNUNET_TESTING_TopologyOption connect_topology_option =
772 GNUNET_TESTING_TOPOLOGY_OPTION_ALL;
774 static double connect_topology_option_modifier = 0.0;
776 static struct ProgressMeter *hostkey_meter;
778 static struct ProgressMeter *peer_start_meter;
780 static struct ProgressMeter *peer_connect_meter;
782 static struct ProgressMeter *put_meter;
784 static struct ProgressMeter *get_meter;
786 static GNUNET_HashCode *known_keys;
788 /* Global return value (0 for success, anything else for failure) */
792 * Create a meter to keep track of the progress of some task.
794 * @param total the total number of items to complete
795 * @param start_string a string to prefix the meter with (if printing)
796 * @param print GNUNET_YES to print the meter, GNUNET_NO to count
799 * @return the progress meter
801 static struct ProgressMeter *
802 create_meter(unsigned int total, char * start_string, int print)
804 struct ProgressMeter *ret;
805 ret = GNUNET_malloc(sizeof(struct ProgressMeter));
808 ret->modnum = total / 4;
809 ret->dotnum = (total / 50) + 1;
810 if (start_string != NULL)
811 ret->startup_string = GNUNET_strdup(start_string);
813 ret->startup_string = GNUNET_strdup("");
819 * Update progress meter (increment by one).
821 * @param meter the meter to update and print info for
823 * @return GNUNET_YES if called the total requested,
824 * GNUNET_NO if more items expected
827 update_meter(struct ProgressMeter *meter)
829 if (meter->print == GNUNET_YES)
831 if (meter->completed % meter->modnum == 0)
833 if (meter->completed == 0)
835 fprintf (stdout, "%sProgress: [0%%", meter->startup_string);
838 fprintf (stdout, "%d%%", (int) (((float) meter->completed
839 / meter->total) * 100));
841 else if (meter->completed % meter->dotnum == 0)
842 fprintf (stdout, ".");
844 if (meter->completed + 1 == meter->total)
845 fprintf (stdout, "%d%%]\n", 100);
850 if (meter->completed == meter->total)
856 * Reset progress meter.
858 * @param meter the meter to reset
860 * @return GNUNET_YES if meter reset,
861 * GNUNET_SYSERR on error
864 reset_meter(struct ProgressMeter *meter)
867 return GNUNET_SYSERR;
869 meter->completed = 0;
874 * Release resources for meter
876 * @param meter the meter to free
879 free_meter(struct ProgressMeter *meter)
881 GNUNET_free_non_null (meter->startup_string);
886 * Check whether peers successfully shut down.
889 shutdown_callback(void *cls, const char *emsg)
899 * Task to release DHT handles for PUT
902 put_disconnect_task(void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
904 struct TestPutContext *test_put = cls;
905 test_put->disconnect_task = GNUNET_SCHEDULER_NO_TASK;
906 GNUNET_DHT_disconnect (test_put->dht_handle);
907 test_put->dht_handle = NULL;
908 if (replicate_same == GNUNET_NO)
910 = GNUNET_TESTING_daemon_get (
912 GNUNET_CRYPTO_random_u32 (
913 GNUNET_CRYPTO_QUALITY_WEAK,
918 * Function scheduled to be run on the successful completion of this
922 finish_testing(void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
924 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Ending test normally!\n",
926 GNUNET_assert (pg != NULL);
927 struct TestPutContext *test_put = all_puts;
928 struct TestGetContext *test_get = all_gets;
929 char *temp_get_string;
932 while (test_put != NULL)
934 if (test_put->disconnect_task != GNUNET_SCHEDULER_NO_TASK)
935 GNUNET_SCHEDULER_cancel (test_put->disconnect_task);
936 if (test_put->dht_handle != NULL)
937 GNUNET_DHT_disconnect (test_put->dht_handle);
938 test_put = test_put->next;
941 while (test_get != NULL)
943 if (test_get->disconnect_task != GNUNET_SCHEDULER_NO_TASK)
944 GNUNET_SCHEDULER_cancel (test_get->disconnect_task);
945 if (test_get->get_handle != NULL)
946 GNUNET_DHT_get_stop (test_get->get_handle);
947 if (test_get->dht_handle != NULL)
948 GNUNET_DHT_disconnect (test_get->dht_handle);
949 test_get = test_get->next;
952 GNUNET_TESTING_daemons_stop (pg, DEFAULT_TIMEOUT, &shutdown_callback, NULL);
954 if (dhtlog_handle != NULL)
956 fprintf (stderr, "Update trial endtime\n");
957 dhtlog_handle->update_trial (cumulative_successful_gets);
958 GNUNET_DHTLOG_disconnect (dhtlog_handle);
959 dhtlog_handle = NULL;
962 if (hostkey_meter != NULL)
963 free_meter (hostkey_meter);
964 if (peer_start_meter != NULL)
965 free_meter (peer_start_meter);
966 if (peer_connect_meter != NULL)
967 free_meter (peer_connect_meter);
968 if (put_meter != NULL)
969 free_meter (put_meter);
970 if (get_meter != NULL)
971 free_meter (get_meter);
973 GNUNET_asprintf (&temp_get_string,
974 "DHT Successful GETs (trial %d)", trial_to_run);
975 GNUNET_asprintf (&revision_str, "%llu", revision);
976 if (GNUNET_YES == insert_gauger_data)
977 GAUGER_ID("DHT_TESTING", temp_get_string, cumulative_successful_gets / (double)cumulative_num_gets, "percent successful", revision_str);
980 "Finished trial, had %llu successful gets out of %llu total, %.2f percent succeeded\n",
981 cumulative_successful_gets, cumulative_num_gets,
982 cumulative_successful_gets / (double) cumulative_num_gets);
983 GNUNET_free(temp_get_string);
989 * Callback for iterating over all the peer connections of a peer group.
992 log_topology_cb(void *cls, const struct GNUNET_PeerIdentity *first,
993 const struct GNUNET_PeerIdentity *second, const char *emsg)
995 struct TopologyIteratorContext *topo_ctx = cls;
996 if ((first != NULL) && (second != NULL))
998 if ((topo_ctx->peers_seen != NULL) && (GNUNET_NO
999 == GNUNET_CONTAINER_multihashmap_contains (topo_ctx->peers_seen,
1000 &first->hashPubKey)))
1002 GNUNET_CONTAINER_multihashmap_put (topo_ctx->peers_seen,
1003 &first->hashPubKey, NULL,
1004 GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
1005 topo_ctx->total_peers++;
1007 topo_ctx->total_connections++;
1008 if ((GNUNET_NO == dhtlog_minimal) && (dhtlog_handle != NULL))
1009 dhtlog_handle->insert_extended_topology (first, second);
1013 GNUNET_assert(dhtlog_handle != NULL);
1015 GNUNET_ERROR_TYPE_WARNING,
1016 "Topology iteration (%u/%u) finished (%u connections, %u peers)\n",
1017 topo_ctx->current_iteration, topo_ctx->total_iterations,
1018 topo_ctx->total_connections, topo_ctx->total_peers);
1019 dhtlog_handle->update_topology (topo_ctx->total_connections);
1020 if (topo_ctx->cont != NULL)
1021 GNUNET_SCHEDULER_add_now (topo_ctx->cont, topo_ctx->cls);
1022 if (topo_ctx->peers_seen != NULL)
1023 GNUNET_CONTAINER_multihashmap_destroy (topo_ctx->peers_seen);
1024 GNUNET_free(topo_ctx);
1029 * Iterator over hash map entries.
1031 * @param cls closure - always NULL
1032 * @param key current key code
1033 * @param value value in the hash map, a stats context
1034 * @return GNUNET_YES if we should continue to
1039 stats_iterate(void *cls, const GNUNET_HashCode * key, void *value)
1041 struct StatisticsIteratorContext *stats_ctx;
1045 dhtlog_handle->insert_stat (stats_ctx->peer, stats_ctx->stat_routes,
1046 stats_ctx->stat_route_forwards,
1047 stats_ctx->stat_results,
1048 stats_ctx->stat_results_to_client,
1049 stats_ctx->stat_result_forwards,
1050 stats_ctx->stat_gets, stats_ctx->stat_puts,
1051 stats_ctx->stat_puts_inserted,
1052 stats_ctx->stat_find_peer,
1053 stats_ctx->stat_find_peer_start,
1054 stats_ctx->stat_get_start,
1055 stats_ctx->stat_put_start,
1056 stats_ctx->stat_find_peer_reply,
1057 stats_ctx->stat_get_reply,
1058 stats_ctx->stat_find_peer_answer,
1059 stats_ctx->stat_get_response_start);
1060 GNUNET_free(stats_ctx);
1065 stats_finished(void *cls, int result)
1067 fprintf (stderr, "Finished getting all peers statistics, iterating!\n");
1068 GNUNET_CONTAINER_multihashmap_iterate (stats_map, &stats_iterate, NULL);
1069 GNUNET_CONTAINER_multihashmap_destroy (stats_map);
1070 GNUNET_SCHEDULER_add_now (&finish_testing, NULL);
1074 * Callback function to process statistic values.
1076 * @param cls closure
1077 * @param peer the peer the statistics belong to
1078 * @param subsystem name of subsystem that created the statistic
1079 * @param name the name of the datum
1080 * @param value the current value
1081 * @param is_persistent GNUNET_YES if the value is persistent, GNUNET_NO if not
1082 * @return GNUNET_OK to continue, GNUNET_SYSERR to abort iteration
1085 stats_handle(void *cls, const struct GNUNET_PeerIdentity *peer,
1086 const char *subsystem, const char *name, uint64_t value, int is_persistent)
1088 struct StatisticsIteratorContext *stats_ctx;
1090 if (dhtlog_handle != NULL)
1091 dhtlog_handle->add_generic_stat (peer, name, subsystem, value);
1092 if (GNUNET_CONTAINER_multihashmap_contains (stats_map, &peer->hashPubKey))
1094 stats_ctx = GNUNET_CONTAINER_multihashmap_get (stats_map,
1099 stats_ctx = GNUNET_malloc(sizeof(struct StatisticsIteratorContext));
1100 stats_ctx->peer = peer;
1101 GNUNET_CONTAINER_multihashmap_put (stats_map, &peer->hashPubKey,
1103 GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
1105 GNUNET_assert(stats_ctx != NULL);
1107 if (strcmp (name, STAT_ROUTES) == 0)
1108 stats_ctx->stat_routes = value;
1109 else if (strcmp (name, STAT_ROUTE_FORWARDS) == 0)
1110 stats_ctx->stat_route_forwards = value;
1111 else if (strcmp (name, STAT_RESULTS) == 0)
1112 stats_ctx->stat_results = value;
1113 else if (strcmp (name, STAT_RESULTS_TO_CLIENT) == 0)
1114 stats_ctx->stat_results_to_client = value;
1115 else if (strcmp (name, STAT_RESULT_FORWARDS) == 0)
1116 stats_ctx->stat_result_forwards = value;
1117 else if (strcmp (name, STAT_GETS) == 0)
1118 stats_ctx->stat_gets = value;
1119 else if (strcmp (name, STAT_PUTS) == 0)
1120 stats_ctx->stat_puts = value;
1121 else if (strcmp (name, STAT_PUTS_INSERTED) == 0)
1122 stats_ctx->stat_puts_inserted = value;
1123 else if (strcmp (name, STAT_FIND_PEER) == 0)
1124 stats_ctx->stat_find_peer = value;
1125 else if (strcmp (name, STAT_FIND_PEER_START) == 0)
1126 stats_ctx->stat_find_peer_start = value;
1127 else if (strcmp (name, STAT_GET_START) == 0)
1128 stats_ctx->stat_get_start = value;
1129 else if (strcmp (name, STAT_PUT_START) == 0)
1130 stats_ctx->stat_put_start = value;
1131 else if (strcmp (name, STAT_FIND_PEER_REPLY) == 0)
1132 stats_ctx->stat_find_peer_reply = value;
1133 else if (strcmp (name, STAT_GET_REPLY) == 0)
1134 stats_ctx->stat_get_reply = value;
1135 else if (strcmp (name, STAT_FIND_PEER_ANSWER) == 0)
1136 stats_ctx->stat_find_peer_answer = value;
1137 else if (strcmp (name, STAT_GET_RESPONSE_START) == 0)
1138 stats_ctx->stat_get_response_start = value;
1144 * Connect to statistics service for each peer and get the appropriate
1145 * dht statistics for safe keeping.
1148 log_dht_statistics(void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1150 stats_map = GNUNET_CONTAINER_multihashmap_create (num_peers);
1151 fprintf (stderr, "Starting statistics logging\n");
1152 GNUNET_TESTING_get_statistics (pg, &stats_finished, &stats_handle, NULL);
1156 * Connect to all peers in the peer group and iterate over their
1160 capture_current_topology(void *cls,
1161 const struct GNUNET_SCHEDULER_TaskContext * tc)
1163 struct TopologyIteratorContext *topo_ctx = cls;
1164 dhtlog_handle->insert_topology (0);
1165 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Called capture_current_topology\n");
1166 GNUNET_TESTING_get_topology (pg, &log_topology_cb, topo_ctx);
1170 * Check if the get_handle is being used, if so stop the request. Either
1171 * way, schedule the end_badly_cont function which actually shuts down the
1175 end_badly(void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1177 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Failing test with error: `%s'!\n",
1180 struct TestPutContext *test_put = all_puts;
1181 struct TestGetContext *test_get = all_gets;
1183 while (test_put != NULL)
1185 if (test_put->disconnect_task != GNUNET_SCHEDULER_NO_TASK)
1186 GNUNET_SCHEDULER_cancel (test_put->disconnect_task);
1187 if (test_put->dht_handle != NULL)
1188 GNUNET_DHT_disconnect (test_put->dht_handle);
1189 test_put = test_put->next;
1192 while (test_get != NULL)
1194 if (test_get->disconnect_task != GNUNET_SCHEDULER_NO_TASK)
1195 GNUNET_SCHEDULER_cancel (test_get->disconnect_task);
1196 if (test_get->get_handle != NULL)
1197 GNUNET_DHT_get_stop (test_get->get_handle);
1198 if (test_get->dht_handle != NULL)
1199 GNUNET_DHT_disconnect (test_get->dht_handle);
1200 test_get = test_get->next;
1203 GNUNET_TESTING_daemons_stop (pg, DEFAULT_TIMEOUT, &shutdown_callback, NULL);
1205 if (dhtlog_handle != NULL)
1207 fprintf (stderr, "Update trial endtime\n");
1208 dhtlog_handle->update_trial (gets_completed);
1209 GNUNET_DHTLOG_disconnect (dhtlog_handle);
1210 dhtlog_handle = NULL;
1213 if (hostkey_meter != NULL)
1214 free_meter (hostkey_meter);
1215 if (peer_start_meter != NULL)
1216 free_meter (peer_start_meter);
1217 if (peer_connect_meter != NULL)
1218 free_meter (peer_connect_meter);
1219 if (put_meter != NULL)
1220 free_meter (put_meter);
1221 if (get_meter != NULL)
1222 free_meter (get_meter);
1228 * Forward declaration.
1231 do_put(void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc);
1234 * Forward declaration.
1237 do_get(void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc);
1240 * Iterator over hash map entries.
1242 * @param cls closure
1243 * @param key current key code
1244 * @param value value in the hash map
1245 * @return GNUNET_YES if we should continue to
1250 remove_peer_count(void *cls, const GNUNET_HashCode * key, void *value)
1252 struct PeerCount *peer_count = value;
1253 GNUNET_CONTAINER_heap_remove_node (peer_count->heap_node);
1254 GNUNET_free(peer_count);
1260 * Connect to all peers in the peer group and iterate over their
1264 count_new_peers(void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1266 struct FindPeerContext *find_peer_context = cls;
1267 find_peer_context->previous_peers = find_peer_context->current_peers;
1268 find_peer_context->current_peers = 0;
1269 GNUNET_TESTING_get_topology (pg, find_peer_context->count_peers_cb,
1274 decrement_find_peers(void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1276 struct TestFindPeer *test_find_peer = cls;
1277 GNUNET_assert(test_find_peer->find_peer_context->outstanding > 0);
1278 test_find_peer->find_peer_context->outstanding--;
1279 test_find_peer->find_peer_context->total--;
1280 if (0 == test_find_peer->find_peer_context->total)
1282 GNUNET_SCHEDULER_add_now (&count_new_peers,
1283 test_find_peer->find_peer_context);
1285 GNUNET_free(test_find_peer);
1289 * A find peer request has been sent to the server, now we will schedule a task
1290 * to wait the appropriate time to allow the request to go out and back.
1292 * @param cls closure - a TestFindPeer struct
1293 * @param tc context the task is being called with
1296 handle_find_peer_sent(void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1298 struct TestFindPeer *test_find_peer = cls;
1300 GNUNET_DHT_disconnect (test_find_peer->dht_handle);
1301 GNUNET_SCHEDULER_add_delayed (
1302 GNUNET_TIME_relative_divide (find_peer_delay, 2),
1303 &decrement_find_peers, test_find_peer);
1307 send_find_peer_request(void *cls,
1308 const struct GNUNET_SCHEDULER_TaskContext * tc)
1310 struct TestFindPeer *test_find_peer = cls;
1312 if (test_find_peer->find_peer_context->outstanding
1313 > max_outstanding_find_peers)
1315 GNUNET_SCHEDULER_add_delayed (find_peer_offset, &send_find_peer_request,
1320 test_find_peer->find_peer_context->outstanding++;
1321 if (GNUNET_TIME_absolute_get_remaining (
1322 test_find_peer->find_peer_context->endtime).rel_value
1325 GNUNET_SCHEDULER_add_now (&decrement_find_peers, test_find_peer);
1329 test_find_peer->dht_handle = GNUNET_DHT_connect (test_find_peer->daemon->cfg,
1331 GNUNET_assert(test_find_peer->dht_handle != NULL);
1332 GNUNET_DHT_find_peers (test_find_peer->dht_handle, &handle_find_peer_sent,
1337 * Add a connection to the find_peer_context given. This may
1338 * be complete overkill, but allows us to choose the peers with
1339 * the least connections to initiate find peer requests from.
1342 add_new_connection(struct FindPeerContext *find_peer_context,
1343 const struct GNUNET_PeerIdentity *first,
1344 const struct GNUNET_PeerIdentity *second)
1346 struct PeerCount *first_count;
1347 struct PeerCount *second_count;
1349 if (GNUNET_CONTAINER_multihashmap_contains (find_peer_context->peer_hash,
1350 &first->hashPubKey))
1353 = GNUNET_CONTAINER_multihashmap_get (find_peer_context->peer_hash,
1354 &first->hashPubKey);
1355 GNUNET_assert(first_count != NULL);
1356 first_count->count++;
1357 GNUNET_CONTAINER_heap_update_cost (find_peer_context->peer_min_heap,
1358 first_count->heap_node,
1359 first_count->count);
1363 first_count = GNUNET_malloc(sizeof(struct PeerCount));
1364 first_count->count = 1;
1365 memcpy (&first_count->peer_id, first, sizeof(struct GNUNET_PeerIdentity));
1366 first_count->heap_node
1367 = GNUNET_CONTAINER_heap_insert (find_peer_context->peer_min_heap,
1368 first_count, first_count->count);
1369 GNUNET_CONTAINER_multihashmap_put (find_peer_context->peer_hash,
1370 &first->hashPubKey, first_count,
1371 GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
1374 if (GNUNET_CONTAINER_multihashmap_contains (find_peer_context->peer_hash,
1375 &second->hashPubKey))
1378 = GNUNET_CONTAINER_multihashmap_get (find_peer_context->peer_hash,
1379 &second->hashPubKey);
1380 GNUNET_assert(second_count != NULL);
1381 second_count->count++;
1382 GNUNET_CONTAINER_heap_update_cost (find_peer_context->peer_min_heap,
1383 second_count->heap_node,
1384 second_count->count);
1388 second_count = GNUNET_malloc(sizeof(struct PeerCount));
1389 second_count->count = 1;
1390 memcpy (&second_count->peer_id, second,
1391 sizeof(struct GNUNET_PeerIdentity));
1392 second_count->heap_node
1393 = GNUNET_CONTAINER_heap_insert (find_peer_context->peer_min_heap,
1394 second_count, second_count->count);
1395 GNUNET_CONTAINER_multihashmap_put (find_peer_context->peer_hash,
1396 &second->hashPubKey, second_count,
1397 GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
1402 * Iterate over min heap of connections per peer. For any
1403 * peer that has 0 connections, attempt to connect them to
1406 * @param cls closure a struct FindPeerContext
1407 * @param node internal node of the heap
1408 * @param element value stored, a struct PeerCount
1409 * @param cost cost associated with the node
1410 * @return GNUNET_YES if we should continue to iterate,
1414 iterate_min_heap_peers(void *cls, struct GNUNET_CONTAINER_HeapNode *node,
1415 void *element, GNUNET_CONTAINER_HeapCostType cost)
1417 struct FindPeerContext *find_peer_context = cls;
1418 struct PeerCount *peer_count = element;
1419 struct GNUNET_TESTING_Daemon *d1;
1420 struct GNUNET_TESTING_Daemon *d2;
1421 struct GNUNET_TIME_Relative timeout;
1424 d1 = GNUNET_TESTING_daemon_get_by_id (pg, &peer_count->peer_id);
1425 GNUNET_assert(d1 != NULL);
1427 while ((d2 == d1) || (GNUNET_YES != GNUNET_TESTING_daemon_running (d2)))
1430 = GNUNET_TESTING_daemon_get (
1432 GNUNET_CRYPTO_random_u32 (
1433 GNUNET_CRYPTO_QUALITY_WEAK,
1435 GNUNET_assert(d2 != NULL);
1438 /** Just try to connect the peers, don't worry about callbacks, etc. **/
1439 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
1440 "Peer %s has 0 connections. Trying to connect to %s...\n",
1441 GNUNET_i2s (&peer_count->peer_id), d2->shortname);
1442 timeout = GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS,
1443 DEFAULT_CONNECT_TIMEOUT);
1444 if (GNUNET_TIME_relative_to_absolute (timeout).abs_value
1445 > find_peer_context->endtime.abs_value)
1448 = GNUNET_TIME_absolute_get_remaining (find_peer_context->endtime);
1450 GNUNET_TESTING_daemons_connect (d1, d2, timeout,
1451 DEFAULT_RECONNECT_ATTEMPTS, GNUNET_YES,
1454 if (GNUNET_TIME_absolute_get_remaining (find_peer_context->endtime).rel_value
1462 * Forward declaration.
1465 schedule_churn_find_peer_requests(void *cls,
1466 const struct GNUNET_SCHEDULER_TaskContext * tc);
1469 * Callback for iterating over all the peer connections of a peer group.
1470 * Used after we have churned on some peers to find which ones have zero
1471 * connections so we can make them issue find peer requests.
1474 count_peers_churn_cb(void *cls, const struct GNUNET_PeerIdentity *first,
1475 const struct GNUNET_PeerIdentity *second, const char *emsg)
1477 struct FindPeerContext *find_peer_context = cls;
1478 struct TopologyIteratorContext *topo_ctx;
1479 struct PeerCount *peer_count;
1481 if ((first != NULL) && (second != NULL))
1483 add_new_connection (find_peer_context, first, second);
1484 find_peer_context->current_peers++;
1488 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
1489 "Peer count finished (%u connections)\n",
1490 find_peer_context->current_peers);
1492 = GNUNET_CONTAINER_heap_peek (find_peer_context->peer_min_heap);
1493 GNUNET_assert(peer_count != NULL);
1494 /* 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. */
1495 /* NO they won't, because we have disabled peerinfo writing to disk (remember?) so we WILL have to give them new connections */
1496 /* Best course of action: have DHT automatically try to add peers from peerinfo on startup. This way IF peerinfo writes to file
1497 * then some peers will end up connected.
1499 * Also, find any peers that have zero connections here and set up a task to choose at random another peer in the network to
1500 * 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
1501 * until they get a peer.
1503 /* However, they won't automatically be connected to any of their previous peers... How can we handle that? */
1504 /* So now we have choices: do we want them to come back with all their connections? Probably not, but it solves this mess. */
1506 /* Second problem, which is still a problem, is that a FIND_PEER request won't work when a peer has no connections */
1509 * Okay, so here's how this *should* work now.
1511 * 1. We check the min heap for any peers that have 0 connections.
1512 * a. If any are found, we iterate over the heap and just randomly
1513 * choose another peer and ask testing to please connect the two.
1514 * This takes care of the case that a peer just randomly joins the
1515 * network. However, if there are strict topology restrictions
1516 * (imagine a ring) choosing randomly most likely won't help.
1517 * We make sure the connection attempt doesn't take longer than
1518 * the total timeout, but don't care too much about the result.
1519 * b. After that, we still schedule the find peer requests (concurrently
1520 * with the connect attempts most likely). This handles the case
1521 * that the DHT iterates over peerinfo and just needs to try to send
1522 * a message to get connected. This should handle the case that the
1523 * topology is very strict.
1525 * 2. If all peers have > 0 connections, we still send find peer requests
1526 * as long as possible (until timeout is reached) to help out those
1527 * peers that were newly churned and need more connections. This is because
1528 * once all new peers have established a single connection, they won't be
1531 * 3. Once we reach the timeout, we can do no more. We must schedule the
1532 * next iteration of get requests regardless of connections that peers
1533 * may or may not have.
1535 * Caveat: it would be nice to get peers to take data offline with them and
1536 * come back with it (or not) based on the testing framework. The
1537 * same goes for remembering previous connections, but putting either
1538 * into the general testing churn options seems like overkill because
1539 * these are very specialized cases.
1542 GNUNET_ERROR_TYPE_WARNING,
1543 "Out of %u peers, fewest connections is %d\n",
1544 GNUNET_CONTAINER_heap_get_size (
1545 find_peer_context->peer_min_heap),
1547 if ((peer_count->count == 0)
1548 && (GNUNET_TIME_absolute_get_remaining (find_peer_context->endtime).rel_value
1552 GNUNET_ERROR_TYPE_WARNING,
1553 "Found peer with no connections, will choose some peer(s) at random to connect to!\n");
1554 GNUNET_CONTAINER_heap_iterate (find_peer_context->peer_min_heap,
1555 &iterate_min_heap_peers,
1557 GNUNET_SCHEDULER_add_now (&schedule_churn_find_peer_requests,
1560 else if ((GNUNET_TIME_absolute_get_remaining (find_peer_context->endtime).rel_value
1561 > 0) && (find_peer_context->last_sent != 0))
1563 GNUNET_SCHEDULER_add_now (&schedule_churn_find_peer_requests,
1568 GNUNET_CONTAINER_multihashmap_iterate (find_peer_context->peer_hash,
1571 GNUNET_CONTAINER_multihashmap_destroy (find_peer_context->peer_hash);
1572 GNUNET_CONTAINER_heap_destroy (find_peer_context->peer_min_heap);
1573 GNUNET_free(find_peer_context);
1575 GNUNET_ERROR_TYPE_WARNING,
1576 "Churn round %u of %llu finished, scheduling next GET round.\n",
1577 current_churn_round, churn_rounds);
1578 if (dhtlog_handle != NULL)
1580 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
1581 topo_ctx->cont = &do_get;
1582 topo_ctx->cls = all_gets;
1583 topo_ctx->timeout = DEFAULT_GET_TIMEOUT;
1584 topo_ctx->peers_seen
1585 = GNUNET_CONTAINER_multihashmap_create (num_peers);
1587 = GNUNET_SCHEDULER_add_delayed (
1588 GNUNET_TIME_relative_add (
1589 GNUNET_TIME_relative_add (
1590 DEFAULT_GET_TIMEOUT,
1592 DEFAULT_TOPOLOGY_CAPTURE_TIMEOUT),
1594 "from do gets (count_peers_churn_cb)");
1595 GNUNET_SCHEDULER_add_now (&capture_current_topology, topo_ctx);
1600 = GNUNET_SCHEDULER_add_delayed (
1601 GNUNET_TIME_relative_add (
1602 GNUNET_TIME_relative_add (
1603 DEFAULT_GET_TIMEOUT,
1605 DEFAULT_TOPOLOGY_CAPTURE_TIMEOUT),
1607 "from do gets (count_peers_churn_cb)");
1608 GNUNET_SCHEDULER_add_now (&do_get, all_gets);
1615 * Set up a single find peer request for each peer in the topology. Do this
1616 * until the settle time is over, limited by the number of outstanding requests
1617 * and the time allowed for each one!
1620 schedule_churn_find_peer_requests(void *cls,
1621 const struct GNUNET_SCHEDULER_TaskContext * tc)
1623 struct FindPeerContext *find_peer_ctx = cls;
1624 struct TestFindPeer *test_find_peer;
1625 struct PeerCount *peer_count;
1628 if (find_peer_ctx->previous_peers == 0) /* First time, go slowly */
1629 find_peer_ctx->total = 1;
1630 else if (find_peer_ctx->current_peers - find_peer_ctx->previous_peers
1631 < MIN_FIND_PEER_CUTOFF)
1632 find_peer_ctx->total = find_peer_ctx->total / 2;
1633 else if (find_peer_ctx->current_peers - find_peer_ctx->previous_peers
1634 > MAX_FIND_PEER_CUTOFF) /* Found LOTS of peers, still go slowly */
1635 find_peer_ctx->total = find_peer_ctx->last_sent - (find_peer_ctx->last_sent
1638 find_peer_ctx->total = find_peer_ctx->last_sent * 4;
1640 if (find_peer_ctx->total > max_outstanding_find_peers)
1641 find_peer_ctx->total = max_outstanding_find_peers;
1643 find_peer_ctx->last_sent = find_peer_ctx->total;
1644 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
1645 "Sending %u find peer messages (after churn)\n",
1646 find_peer_ctx->total);
1648 if (find_peer_ctx->total > 0)
1649 find_peer_offset = GNUNET_TIME_relative_divide (find_peer_delay,
1650 find_peer_ctx->total);
1653 find_peer_ctx->previous_peers = find_peer_ctx->current_peers;
1654 find_peer_ctx->current_peers = 0;
1655 GNUNET_TESTING_get_topology (pg, &count_peers_churn_cb, find_peer_ctx);
1658 for (i = 0; i < find_peer_ctx->total; i++)
1660 test_find_peer = GNUNET_malloc(sizeof(struct TestFindPeer));
1661 /* If we have sent requests, choose peers with a low number of connections to send requests from */
1663 = GNUNET_CONTAINER_heap_remove_root (find_peer_ctx->peer_min_heap);
1664 GNUNET_assert(peer_count != NULL);
1665 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
1666 "Sending find peer request from peer with %u connections\n",
1668 GNUNET_CONTAINER_multihashmap_remove (find_peer_ctx->peer_hash,
1669 &peer_count->peer_id.hashPubKey,
1671 test_find_peer->daemon
1672 = GNUNET_TESTING_daemon_get_by_id (pg, &peer_count->peer_id);
1673 GNUNET_assert(test_find_peer->daemon != NULL);
1674 test_find_peer->find_peer_context = find_peer_ctx;
1675 GNUNET_SCHEDULER_add_delayed (
1676 GNUNET_TIME_relative_multiply (
1679 &send_find_peer_request, test_find_peer);
1682 if ((find_peer_ctx->peer_hash == NULL) && (find_peer_ctx->peer_min_heap
1685 find_peer_ctx->peer_hash
1686 = GNUNET_CONTAINER_multihashmap_create (num_peers);
1687 find_peer_ctx->peer_min_heap
1688 = GNUNET_CONTAINER_heap_create (GNUNET_CONTAINER_HEAP_ORDER_MIN);
1692 GNUNET_CONTAINER_multihashmap_iterate (find_peer_ctx->peer_hash,
1693 &remove_peer_count, find_peer_ctx);
1694 GNUNET_CONTAINER_multihashmap_destroy (find_peer_ctx->peer_hash);
1695 find_peer_ctx->peer_hash
1696 = GNUNET_CONTAINER_multihashmap_create (num_peers);
1699 GNUNET_assert(0 == GNUNET_CONTAINER_multihashmap_size(find_peer_ctx->peer_hash));
1700 GNUNET_assert(0 == GNUNET_CONTAINER_heap_get_size(find_peer_ctx->peer_min_heap));
1704 schedule_churn_get_topology(void *cls,
1705 const struct GNUNET_SCHEDULER_TaskContext * tc)
1707 struct FindPeerContext *find_peer_context = cls;
1708 GNUNET_TESTING_get_topology (pg, &count_peers_churn_cb, find_peer_context);
1712 * Called when churning of the topology has finished.
1714 * @param cls closure unused
1715 * @param emsg NULL on success, or a printable error on failure
1718 churn_complete(void *cls, const char *emsg)
1720 struct FindPeerContext *find_peer_context = cls;
1721 struct PeerCount *peer_count;
1723 struct GNUNET_TESTING_Daemon *temp_daemon;
1724 struct TopologyIteratorContext *topo_ctx;
1725 struct GNUNET_TIME_Relative calc_timeout;
1730 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
1731 "Ending test, churning of peers failed with error `%s'", emsg);
1732 GNUNET_SCHEDULER_add_now (&end_badly, (void *) emsg);
1737 * If we switched any peers on, we have to somehow force connect the new peer to
1738 * SOME bootstrap peer in the network. First schedule a task to find all peers
1739 * with no connections, then choose a random peer for each and connect them.
1741 if (find_peer_context != NULL)
1744 GNUNET_ERROR_TYPE_WARNING,
1745 "We have churned on some peers, so we must schedule find peer requests for them!\n");
1747 for (i = 0; i < num_peers; i++)
1749 temp_daemon = GNUNET_TESTING_daemon_get (pg, i);
1750 if (GNUNET_YES == GNUNET_TESTING_daemon_running (temp_daemon))
1752 peer_count = GNUNET_malloc (sizeof(struct PeerCount));
1753 memcpy (&peer_count->peer_id, &temp_daemon->id,
1754 sizeof(struct GNUNET_PeerIdentity));
1755 GNUNET_assert(peer_count->count == 0);
1756 peer_count->heap_node
1757 = GNUNET_CONTAINER_heap_insert (
1758 find_peer_context->peer_min_heap,
1759 peer_count, peer_count->count);
1760 GNUNET_CONTAINER_multihashmap_put (find_peer_context->peer_hash,
1761 &temp_daemon->id.hashPubKey,
1763 GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
1768 GNUNET_ERROR_TYPE_WARNING,
1769 "Added %d peers to heap, total size %d\n",
1771 GNUNET_CONTAINER_heap_get_size (
1772 find_peer_context->peer_min_heap));
1773 GNUNET_SCHEDULER_add_delayed (DEFAULT_PEER_DISCONNECT_TIMEOUT,
1774 &schedule_churn_get_topology,
1780 GNUNET_ERROR_TYPE_WARNING,
1781 "Only churned off peers, no find peer requests, scheduling more gets (after allowing time for peers to disconnect properly!)...\n");
1782 if (dhtlog_handle != NULL)
1784 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
1785 topo_ctx->cont = &do_get;
1786 topo_ctx->cls = all_gets;
1787 topo_ctx->timeout = DEFAULT_GET_TIMEOUT;
1788 topo_ctx->peers_seen
1789 = GNUNET_CONTAINER_multihashmap_create (num_peers);
1790 calc_timeout = GNUNET_TIME_relative_add (DEFAULT_GET_TIMEOUT,
1793 = GNUNET_TIME_relative_add (calc_timeout,
1794 DEFAULT_TOPOLOGY_CAPTURE_TIMEOUT);
1796 = GNUNET_TIME_relative_add (calc_timeout,
1797 DEFAULT_PEER_DISCONNECT_TIMEOUT);
1799 = GNUNET_SCHEDULER_add_delayed (calc_timeout, &end_badly,
1800 "from do gets (churn_complete)");
1801 GNUNET_SCHEDULER_add_delayed (DEFAULT_PEER_DISCONNECT_TIMEOUT,
1802 &capture_current_topology, topo_ctx);
1803 dhtlog_handle->insert_round (DHT_ROUND_GET, rounds_finished);
1807 calc_timeout = GNUNET_TIME_relative_add (DEFAULT_GET_TIMEOUT,
1810 = GNUNET_TIME_relative_add (calc_timeout,
1811 DEFAULT_PEER_DISCONNECT_TIMEOUT);
1813 = GNUNET_SCHEDULER_add_delayed (calc_timeout, &end_badly,
1814 "from do gets (churn_complete)");
1815 GNUNET_SCHEDULER_add_delayed (DEFAULT_PEER_DISCONNECT_TIMEOUT,
1822 * Decide how many peers to turn on or off in this round, make sure the
1823 * numbers actually make sense, then do so. This function sets in motion
1824 * churn, find peer requests for newly joined peers, and issuing get
1825 * requests once the new peers have done so.
1827 * @param cls closure (unused)
1828 * @param tc task context (unused)
1831 churn_peers(void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1833 unsigned int count_running;
1834 unsigned int churn_up;
1835 unsigned int churn_down;
1836 struct GNUNET_TIME_Relative timeout;
1837 struct FindPeerContext *find_peer_context;
1839 churn_up = churn_down = 0;
1840 count_running = GNUNET_TESTING_daemons_running (pg);
1841 if (count_running > churn_array[current_churn_round])
1842 churn_down = count_running - churn_array[current_churn_round];
1843 else if (count_running < churn_array[current_churn_round])
1844 churn_up = churn_array[current_churn_round] - count_running;
1846 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1847 "Not churning any peers, topology unchanged.\n");
1849 if (churn_up > num_peers - count_running)
1851 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
1852 "Churn file specified %u peers (up); only have %u!",
1853 churn_array[current_churn_round], num_peers);
1854 churn_up = num_peers - count_running;
1856 else if (churn_down > count_running)
1858 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
1859 "Churn file specified %u peers (down); only have %u!",
1860 churn_array[current_churn_round], count_running);
1861 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
1862 "This will leave NO peers running (mistake in churn configuration?)!");
1863 churn_down = count_running;
1865 //timeout = GNUNET_TIME_relative_multiply(seconds_per_peer_start, churn_up > 0 ? churn_up : churn_down);
1866 //timeout = GNUNET_TIME_relative_multiply (seconds_per_peer_start, churn_up > 0 ? churn_up : churn_down);
1867 timeout = GNUNET_TIME_relative_multiply (DEFAULT_TIMEOUT, 2); /* FIXME: Lack of intelligent choice here */
1868 find_peer_context = NULL;
1869 if (churn_up > 0) /* Only need to do find peer requests if we turned new peers on */
1871 find_peer_context = GNUNET_malloc(sizeof(struct FindPeerContext));
1872 find_peer_context->count_peers_cb = &count_peers_churn_cb;
1873 find_peer_context->previous_peers = 0;
1874 find_peer_context->current_peers = 0;
1875 find_peer_context->endtime = GNUNET_TIME_relative_to_absolute (timeout);
1876 find_peer_context->peer_hash
1877 = GNUNET_CONTAINER_multihashmap_create (num_peers);
1878 find_peer_context->peer_min_heap
1879 = GNUNET_CONTAINER_heap_create (GNUNET_CONTAINER_HEAP_ORDER_MIN);
1882 GNUNET_ERROR_TYPE_WARNING,
1883 "churn_peers: want %u total, %u running, starting %u, stopping %u\n",
1884 churn_array[current_churn_round], count_running, churn_up,
1886 GNUNET_TESTING_daemons_churn (pg, churn_down, churn_up, timeout,
1887 &churn_complete, find_peer_context);
1888 current_churn_round++;
1892 * Task to release DHT handle associated with GET request.
1895 get_stop_finished(void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
1897 struct TestGetContext *test_get = cls;
1898 struct TopologyIteratorContext *topo_ctx;
1900 /* The dht_handle may be null if this get was scheduled from a down peer */
1901 if (test_get->dht_handle != NULL)
1903 GNUNET_DHT_disconnect (test_get->dht_handle);
1904 outstanding_gets--; /* GET is really finished */
1905 test_get->dht_handle = NULL;
1908 /* Reset the uid (which item to search for) and the daemon (which peer to search from) for later get request iterations */
1909 if (get_from_same == GNUNET_NO)
1911 test_get->uid = GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK,
1914 = GNUNET_TESTING_daemon_get (
1916 GNUNET_CRYPTO_random_u32 (
1917 GNUNET_CRYPTO_QUALITY_WEAK,
1922 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "%d gets succeeded, %d gets failed!\n", gets_completed, gets_failed);
1924 update_meter (get_meter);
1925 if ((gets_completed + gets_failed == num_gets) && (outstanding_gets == 0))
1929 "Canceling die task (get_stop_finished) %llu gets completed, %llu gets failed\n",
1930 gets_completed, gets_failed);
1931 if ((GNUNET_YES == dhtlog_minimal) && (NULL != dhtlog_handle))
1932 dhtlog_handle->insert_round_details (DHT_ROUND_GET, rounds_finished,
1933 num_gets, gets_completed);
1934 GNUNET_SCHEDULER_cancel (die_task);
1935 reset_meter (put_meter);
1936 reset_meter (get_meter);
1939 * 1) Testing is completely finished, call the topology iteration dealy and die
1940 * 2) Testing is not finished, churn the network and do gets again (current_churn_round < churn_rounds)
1941 * 3) Testing is not finished, reschedule all the PUTS *and* GETS again (num_rounds > 1)
1943 if (rounds_finished == total_rounds - 1) /* Everything is finished, end testing */
1945 if ((dhtlog_handle != NULL) && (GNUNET_NO == dhtlog_minimal))
1947 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
1948 topo_ctx->cont = &log_dht_statistics;
1949 topo_ctx->peers_seen
1950 = GNUNET_CONTAINER_multihashmap_create (num_peers);
1951 GNUNET_SCHEDULER_add_now (&capture_current_topology, topo_ctx);
1954 GNUNET_SCHEDULER_add_now (&finish_testing, NULL);
1956 else if (current_churn_round < churns_per_round * (rounds_finished + 1)) /* Do next round of churn */
1959 GNUNET_ERROR_TYPE_WARNING,
1960 "Current churn round %u, real round %u, scheduling next round of churn.\n",
1961 current_churn_round, rounds_finished + 1);
1965 if (dhtlog_handle != NULL)
1966 dhtlog_handle->insert_round (DHT_ROUND_CHURN, rounds_finished);
1968 GNUNET_SCHEDULER_add_now (&churn_peers, NULL);
1970 else if (rounds_finished < total_rounds - 1) /* Start a new complete round */
1975 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
1976 "Round %u of %llu finished, scheduling next round.\n",
1977 rounds_finished, total_rounds);
1979 /** We reset the peer daemon for puts and gets on each disconnect, so all we need to do is start another round! */
1980 if (GNUNET_YES == in_dht_replication) /* Replication done in DHT, don't redo puts! */
1982 if (dhtlog_handle != NULL)
1983 dhtlog_handle->insert_round (DHT_ROUND_GET, rounds_finished);
1986 = GNUNET_SCHEDULER_add_delayed (
1987 GNUNET_TIME_relative_add (
1988 GNUNET_TIME_relative_add (
1989 GNUNET_TIME_relative_multiply (
1990 GNUNET_TIME_UNIT_SECONDS,
1993 DEFAULT_TOPOLOGY_CAPTURE_TIMEOUT),
1995 "from do gets (next round)");
1996 GNUNET_SCHEDULER_add_delayed (
1997 GNUNET_TIME_relative_multiply (
1998 GNUNET_TIME_UNIT_SECONDS,
2004 if (dhtlog_handle != NULL)
2005 dhtlog_handle->insert_round (DHT_ROUND_NORMAL, rounds_finished);
2007 = GNUNET_SCHEDULER_add_delayed (
2008 GNUNET_TIME_relative_add (
2009 GNUNET_TIME_relative_multiply (
2010 GNUNET_TIME_UNIT_SECONDS,
2012 GNUNET_TIME_relative_multiply (
2013 GNUNET_TIME_UNIT_SECONDS,
2016 &end_badly, "from do puts");
2017 GNUNET_SCHEDULER_add_delayed (
2018 GNUNET_TIME_relative_multiply (
2019 GNUNET_TIME_UNIT_SECONDS,
2028 * Task to release get handle.
2031 get_stop_task(void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
2033 struct TestGetContext *test_get = cls;
2035 if (tc->reason == GNUNET_SCHEDULER_REASON_TIMEOUT)
2038 cumulative_successful_gets++;
2040 GNUNET_assert(test_get->get_handle != NULL);
2041 GNUNET_DHT_get_stop (test_get->get_handle);
2042 test_get->get_handle = NULL;
2043 test_get->disconnect_task = GNUNET_SCHEDULER_NO_TASK;
2044 GNUNET_SCHEDULER_add_now (&get_stop_finished, test_get);
2048 * Iterator called if the GET request initiated returns a response.
2050 * @param cls closure
2051 * @param exp when will this value expire
2052 * @param key key of the result
2053 * @param get_path NULL-terminated array of pointers
2054 * to the peers on reverse GET path (or NULL if not recorded)
2055 * @param put_path NULL-terminated array of pointers
2056 * to the peers on the PUT path (or NULL if not recorded)
2057 * @param type type of the result
2058 * @param size number of bytes in data
2059 * @param data pointer to the result data
2062 get_result_iterator(void *cls, struct GNUNET_TIME_Absolute exp,
2063 const GNUNET_HashCode * key,
2064 const struct GNUNET_PeerIdentity * const *get_path,
2065 const struct GNUNET_PeerIdentity * const *put_path,
2066 enum GNUNET_BLOCK_Type type, size_t size, const void *data)
2068 struct TestGetContext *test_get = cls;
2070 if (test_get->succeeded == GNUNET_YES)
2071 return; /* Get has already been successful, probably ending now */
2073 if (0 != memcmp (&known_keys[test_get->uid], key, sizeof(GNUNET_HashCode))) /* || (0 != memcmp(original_data, data, sizeof(original_data))))*/
2076 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2077 "Key or data is not the same as was inserted!\n");
2082 test_get->succeeded = GNUNET_YES;
2085 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Received correct GET response!\n");
2087 GNUNET_SCHEDULER_cancel (test_get->disconnect_task);
2088 GNUNET_SCHEDULER_add_continuation (&get_stop_task, test_get,
2089 GNUNET_SCHEDULER_REASON_PREREQ_DONE);
2093 * Set up some data, and call API PUT function
2096 do_get(void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
2098 struct TestGetContext *test_get = cls;
2102 GNUNET_SCHEDULER_cancel (die_task);
2103 GNUNET_SCHEDULER_add_now (&finish_testing, NULL);
2106 if (test_get == NULL)
2107 return; /* End of the list */
2109 /* Set this here in case we are re-running gets */
2110 test_get->succeeded = GNUNET_NO;
2112 if (GNUNET_YES != GNUNET_TESTING_daemon_running (test_get->daemon)) /* If the peer has been churned off, don't try issuing request from it! */
2114 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2115 "Peer we should issue get request from is down, skipping.\n");
2117 GNUNET_SCHEDULER_add_now (&get_stop_finished, test_get);
2118 GNUNET_SCHEDULER_add_now (&do_get, test_get->next);
2122 /* Check if more gets are outstanding than should be */
2123 if (outstanding_gets > max_outstanding_gets)
2125 GNUNET_SCHEDULER_add_delayed (
2126 GNUNET_TIME_relative_multiply (
2127 GNUNET_TIME_UNIT_MILLISECONDS,
2133 /* Connect to the first peer's DHT */
2134 test_get->dht_handle = GNUNET_DHT_connect (test_get->daemon->cfg, 10);
2135 GNUNET_assert(test_get->dht_handle != NULL);
2138 cumulative_num_gets++;
2139 /* Insert the data at the first peer */
2140 test_get->get_handle = GNUNET_DHT_get_start (test_get->dht_handle, get_delay,
2141 GNUNET_BLOCK_TYPE_TEST,
2142 &known_keys[test_get->uid],
2144 GNUNET_DHT_RO_NONE, NULL, 0,
2145 NULL, 0, &get_result_iterator,
2149 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Starting get for uid %u from peer %s\n",
2151 test_get->daemon->shortname);
2153 test_get->disconnect_task = GNUNET_SCHEDULER_add_delayed (get_timeout,
2157 /* Schedule the next request in the linked list of get requests */
2158 GNUNET_SCHEDULER_add_now (&do_get, test_get->next);
2162 * Called when the PUT request has been transmitted to the DHT service.
2163 * Schedule the GET request for some time in the future.
2166 put_finished(void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
2168 struct TestPutContext *test_put = cls;
2169 struct TopologyIteratorContext *topo_ctx;
2173 if (tc->reason == GNUNET_SCHEDULER_REASON_TIMEOUT)
2174 fprintf (stderr, "PUT Request failed!\n");
2176 /* Reset the daemon (which peer to insert at) for later put request iterations */
2177 if (replicate_same == GNUNET_NO)
2179 = GNUNET_TESTING_daemon_get (
2181 GNUNET_CRYPTO_random_u32 (
2182 GNUNET_CRYPTO_QUALITY_WEAK,
2185 GNUNET_SCHEDULER_cancel (test_put->disconnect_task);
2186 test_put->disconnect_task = GNUNET_SCHEDULER_add_now (&put_disconnect_task,
2188 if (GNUNET_YES == update_meter (put_meter))
2190 GNUNET_assert(outstanding_puts == 0);
2191 GNUNET_SCHEDULER_cancel (die_task);
2192 if ((dhtlog_handle != NULL) && (GNUNET_NO == dhtlog_minimal))
2194 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
2195 topo_ctx->cont = &do_get;
2196 topo_ctx->cls = all_gets;
2197 topo_ctx->timeout = DEFAULT_GET_TIMEOUT;
2198 topo_ctx->peers_seen
2199 = GNUNET_CONTAINER_multihashmap_create (num_peers);
2201 = GNUNET_SCHEDULER_add_delayed (
2202 GNUNET_TIME_relative_add (
2203 GNUNET_TIME_relative_add (
2204 DEFAULT_GET_TIMEOUT,
2206 DEFAULT_TOPOLOGY_CAPTURE_TIMEOUT),
2208 "from do gets (put finished)");
2209 GNUNET_SCHEDULER_add_now (&capture_current_topology, topo_ctx);
2213 fprintf (stderr, "Scheduling die task (put finished)\n");
2215 = GNUNET_SCHEDULER_add_delayed (
2216 GNUNET_TIME_relative_add (
2217 DEFAULT_GET_TIMEOUT,
2220 "from do gets (put finished)");
2221 GNUNET_SCHEDULER_add_delayed (DEFAULT_GET_TIMEOUT, &do_get, all_gets);
2228 * Set up some data, and call API PUT function
2231 do_put(void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
2233 struct TestPutContext *test_put = cls;
2234 char data[test_data_size]; /* Made up data to store */
2238 if (test_put == NULL)
2239 return; /* End of list */
2241 if (GNUNET_YES != GNUNET_TESTING_daemon_running (test_put->daemon)) /* If the peer has been churned off, don't try issuing request from it! */
2243 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2244 "Peer we should issue put request at is down, skipping.\n");
2245 update_meter (put_meter);
2246 GNUNET_SCHEDULER_add_now (&do_put, test_put->next);
2250 for (i = 0; i < sizeof(data); i++)
2252 memset (&data[i], GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK,
2256 if (outstanding_puts > max_outstanding_puts)
2258 GNUNET_SCHEDULER_add_delayed (
2259 GNUNET_TIME_relative_multiply (
2260 GNUNET_TIME_UNIT_MILLISECONDS,
2267 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Starting put for uid %u from peer %s\n",
2269 test_put->daemon->shortname);
2271 test_put->dht_handle = GNUNET_DHT_connect (test_put->daemon->cfg, 10);
2273 GNUNET_assert(test_put->dht_handle != NULL);
2275 GNUNET_DHT_put (test_put->dht_handle, &known_keys[test_put->uid],
2276 put_replication, GNUNET_DHT_RO_NONE, GNUNET_BLOCK_TYPE_TEST,
2277 sizeof(data), data, GNUNET_TIME_UNIT_FOREVER_ABS, put_delay,
2278 &put_finished, test_put);
2279 test_put->disconnect_task
2280 = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_get_forever (),
2281 &put_disconnect_task, test_put);
2282 rand = GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK, 2);
2283 GNUNET_SCHEDULER_add_delayed (
2284 GNUNET_TIME_relative_multiply (
2285 GNUNET_TIME_UNIT_SECONDS,
2291 schedule_find_peer_requests(void *cls,
2292 const struct GNUNET_SCHEDULER_TaskContext * tc);
2295 setup_malicious_peers(void *cls,
2296 const struct GNUNET_SCHEDULER_TaskContext * tc);
2299 * Given a number of total peers and a bucket size, estimate the number of
2300 * connections in a perfect kademlia topology.
2303 connection_estimate(unsigned int peer_count, unsigned int bucket_size)
2306 unsigned int filled;
2310 while (i >= bucket_size)
2315 filled++; /* Add one filled bucket to account for one "half full" and some miscellaneous */
2316 return filled * bucket_size * peer_count;
2321 * Callback for iterating over all the peer connections of a peer group.
2324 count_peers_cb(void *cls, const struct GNUNET_PeerIdentity *first,
2325 const struct GNUNET_PeerIdentity *second, const char *emsg)
2327 struct FindPeerContext *find_peer_context = cls;
2328 if ((first != NULL) && (second != NULL))
2330 add_new_connection (find_peer_context, first, second);
2331 find_peer_context->current_peers++;
2336 GNUNET_ERROR_TYPE_WARNING,
2337 "Peer count finished (%u connections), %u new peers, connection estimate %u (target %u)\n",
2338 find_peer_context->current_peers,
2339 find_peer_context->current_peers
2340 - find_peer_context->previous_peers,
2341 connection_estimate (num_peers, DEFAULT_BUCKET_SIZE),
2342 target_total_connections);
2344 if ((find_peer_context->last_sent < 8)
2345 || ((find_peer_context->current_peers < 2
2346 * connection_estimate (num_peers, DEFAULT_BUCKET_SIZE))
2347 && (GNUNET_TIME_absolute_get_remaining (
2348 find_peer_context->endtime).rel_value
2349 > 0) && (find_peer_context->current_peers
2350 < target_total_connections)))
2352 GNUNET_SCHEDULER_add_now (&schedule_find_peer_requests,
2357 GNUNET_CONTAINER_multihashmap_iterate (find_peer_context->peer_hash,
2360 GNUNET_CONTAINER_multihashmap_destroy (find_peer_context->peer_hash);
2361 GNUNET_CONTAINER_heap_destroy (find_peer_context->peer_min_heap);
2362 GNUNET_free(find_peer_context);
2363 fprintf (stderr, "Not sending any more find peer requests.\n");
2366 if (GNUNET_YES == malicious_after_settle)
2368 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "calling setup_malicious_peers\n");
2369 GNUNET_SCHEDULER_add_now(&setup_malicious_peers, NULL);
2377 * Set up a single find peer request for each peer in the topology. Do this
2378 * until the settle time is over, limited by the number of outstanding requests
2379 * and the time allowed for each one!
2382 schedule_find_peer_requests(void *cls,
2383 const struct GNUNET_SCHEDULER_TaskContext * tc)
2385 struct FindPeerContext *find_peer_ctx = cls;
2386 struct TestFindPeer *test_find_peer;
2387 struct PeerCount *peer_count;
2391 if (find_peer_ctx->previous_peers == 0) /* First time, go slowly */
2392 find_peer_ctx->total = 1;
2393 else if (find_peer_ctx->current_peers - find_peer_ctx->previous_peers
2394 > MAX_FIND_PEER_CUTOFF) /* Found LOTS of peers, still go slowly */
2395 find_peer_ctx->total = find_peer_ctx->last_sent - (find_peer_ctx->last_sent
2398 find_peer_ctx->total = find_peer_ctx->last_sent * 2;
2400 if (find_peer_ctx->total > max_outstanding_find_peers)
2401 find_peer_ctx->total = max_outstanding_find_peers;
2403 if (find_peer_ctx->total > num_peers) /* Don't try to send more messages than we have peers! */
2404 find_peer_ctx->total = num_peers;
2406 find_peer_ctx->last_sent = find_peer_ctx->total;
2407 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2408 "Sending %u find peer messages (goal at least %u connections)\n",
2409 find_peer_ctx->total, target_total_connections);
2411 find_peer_offset = GNUNET_TIME_relative_divide (find_peer_delay,
2412 find_peer_ctx->total);
2413 for (i = 0; i < find_peer_ctx->total; i++)
2415 test_find_peer = GNUNET_malloc(sizeof(struct TestFindPeer));
2416 /* If we haven't sent any requests yet, choose random peers */
2417 /* Also choose random in _half_ of all cases, so we don't
2418 * get stuck choosing topologically restricted peers with
2419 * few connections that will never be able to find any new
2421 if ((find_peer_ctx->previous_peers == 0) || (i % 2 == 0))
2424 * Attempt to spread find peer requests across even sections of the peer address
2425 * space. Choose basically 1 peer in every num_peers / max_outstanding_requests
2426 * each time, then offset it by a randomish value.
2428 * For instance, if num_peers is 100 and max_outstanding is 10, first chosen peer
2429 * will be between 0 - 10, second between 10 - 20, etc.
2431 random = (num_peers / find_peer_ctx->total) * i;
2433 + GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK,
2434 (num_peers / find_peer_ctx->total));
2435 if (random >= num_peers)
2437 random = random - num_peers;
2440 random = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers);
2442 test_find_peer->daemon = GNUNET_TESTING_daemon_get (pg, random);
2444 else /* If we have sent requests, choose peers with a low number of connections to send requests from */
2447 = GNUNET_CONTAINER_heap_remove_root (find_peer_ctx->peer_min_heap);
2448 GNUNET_assert(GNUNET_YES == GNUNET_CONTAINER_multihashmap_remove(find_peer_ctx->peer_hash, &peer_count->peer_id.hashPubKey, peer_count));
2449 test_find_peer->daemon
2450 = GNUNET_TESTING_daemon_get_by_id (pg, &peer_count->peer_id);
2451 GNUNET_assert(test_find_peer->daemon != NULL);
2454 test_find_peer->find_peer_context = find_peer_ctx;
2455 GNUNET_SCHEDULER_add_delayed (
2456 GNUNET_TIME_relative_multiply (
2459 &send_find_peer_request, test_find_peer);
2462 if ((find_peer_ctx->peer_hash == NULL) && (find_peer_ctx->peer_min_heap
2465 find_peer_ctx->peer_hash
2466 = GNUNET_CONTAINER_multihashmap_create (num_peers);
2467 find_peer_ctx->peer_min_heap
2468 = GNUNET_CONTAINER_heap_create (GNUNET_CONTAINER_HEAP_ORDER_MIN);
2472 GNUNET_CONTAINER_multihashmap_iterate (find_peer_ctx->peer_hash,
2473 &remove_peer_count, find_peer_ctx);
2474 GNUNET_CONTAINER_multihashmap_destroy (find_peer_ctx->peer_hash);
2475 find_peer_ctx->peer_hash
2476 = GNUNET_CONTAINER_multihashmap_create (num_peers);
2479 GNUNET_assert(0 == GNUNET_CONTAINER_multihashmap_size(find_peer_ctx->peer_hash));
2480 GNUNET_assert(0 == GNUNET_CONTAINER_heap_get_size(find_peer_ctx->peer_min_heap));
2485 * Convert unique ID to hash code.
2487 * @param uid unique ID to convert
2488 * @param hash set to uid (extended with zeros)
2491 hash_from_uid(uint32_t uid, GNUNET_HashCode *hash)
2493 memset (hash, 0, sizeof(GNUNET_HashCode));
2494 *((uint32_t *) hash) = uid;
2498 * Set up all of the put and get operations we want to do
2499 * in the current round. Allocate data structure for each,
2500 * add to list, then schedule the actual PUT operations.
2503 setup_puts_and_gets(void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
2506 struct TestPutContext *test_put;
2507 struct TestGetContext *test_get;
2509 GNUNET_HashCode uid_hash;
2512 int remember[num_puts][num_peers];
2513 memset(&remember, 0, sizeof(int) * num_puts * num_peers);
2515 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "in setup_puts_and_gets\n");
2516 known_keys = GNUNET_malloc(sizeof(GNUNET_HashCode) * num_puts);
2517 for (i = 0; i < num_puts; i++)
2519 test_put = GNUNET_malloc(sizeof(struct TestPutContext));
2521 GNUNET_CRYPTO_hash_create_random (GNUNET_CRYPTO_QUALITY_WEAK,
2523 /* Set first X bits to match the chosen sybil location if we want to do the sybil attack! */
2524 if (GNUNET_YES == malicious_sybil)
2526 memcpy (&known_keys[i], &sybil_target, sizeof(GNUNET_HashCode) / 2);
2527 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2528 "Distance between sybil location and key is %d\n",
2529 GNUNET_CRYPTO_hash_matching_bits (&known_keys[i],
2532 temp_peer = GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK,
2534 test_put->daemon = GNUNET_TESTING_daemon_get (pg, temp_peer);
2535 /* Don't start PUTs at malicious peers! */
2536 if (malicious_bloom != NULL)
2539 hash_from_uid (temp_peer, &uid_hash);
2541 == GNUNET_CONTAINER_bloomfilter_test (malicious_bloom, &uid_hash))
2542 && (count < num_peers))
2544 temp_peer = GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK,
2546 hash_from_uid (temp_peer, &uid_hash);
2547 test_put->daemon = GNUNET_TESTING_daemon_get (pg, temp_peer);
2550 if (count == num_peers)
2551 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2552 "Couldn't find peer not in malicious bloom to select!\n");
2555 test_put->next = all_puts;
2556 all_puts = test_put;
2559 for (i = 0; i < num_gets; i++)
2561 test_get = GNUNET_malloc(sizeof(struct TestGetContext));
2562 test_get->uid = GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK,
2565 while (remember[test_get->uid][temp_daemon] == 1)
2566 temp_daemon = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers);
2567 remember[test_get->uid][temp_daemon] = 1;
2569 temp_peer = GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK,
2571 test_get->daemon = GNUNET_TESTING_daemon_get (pg, temp_peer);
2572 /* Don't start GETs at malicious peers! */
2573 if (malicious_bloom != NULL)
2575 hash_from_uid (temp_peer, &uid_hash);
2578 == GNUNET_CONTAINER_bloomfilter_test (malicious_bloom, &uid_hash))
2579 && (count < num_peers))
2581 temp_peer = GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK,
2583 hash_from_uid (temp_peer, &uid_hash);
2584 test_get->daemon = GNUNET_TESTING_daemon_get (pg, temp_peer);
2587 if (count == num_peers)
2588 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2589 "Couldn't find peer not in malicious bloom to select!\n");
2591 test_get->next = all_gets;
2592 all_gets = test_get;
2595 /*GNUNET_SCHEDULER_cancel (die_task);*/
2597 = GNUNET_SCHEDULER_add_delayed (
2598 GNUNET_TIME_relative_multiply (
2599 GNUNET_TIME_UNIT_SECONDS,
2602 &end_badly, "from do puts");
2603 GNUNET_SCHEDULER_add_now (&do_put, all_puts);
2608 * Set up some all of the put and get operations we want
2609 * to do. Allocate data structure for each, add to list,
2610 * then call actual insert functions.
2613 continue_puts_and_gets(void *cls,
2614 const struct GNUNET_SCHEDULER_TaskContext * tc)
2618 struct TopologyIteratorContext *topo_ctx;
2619 struct FindPeerContext *find_peer_context;
2620 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "In continue_puts_and_gets\n");
2621 if ((dhtlog_handle != NULL) && (GNUNET_NO == dhtlog_minimal))
2623 if (settle_time >= 180 * 2)
2624 max = (settle_time / 180) - 2;
2627 for (i = 1; i < max; i++)
2629 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
2630 topo_ctx->current_iteration = i;
2631 topo_ctx->total_iterations = max;
2632 topo_ctx->peers_seen
2633 = GNUNET_CONTAINER_multihashmap_create (num_peers);
2634 //fprintf(stderr, "scheduled topology iteration in %d minutes\n", i);
2635 GNUNET_SCHEDULER_add_delayed (
2636 GNUNET_TIME_relative_multiply (
2637 GNUNET_TIME_UNIT_MINUTES,
2639 &capture_current_topology, topo_ctx);
2641 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
2642 topo_ctx->cont = &setup_puts_and_gets;
2643 topo_ctx->peers_seen = GNUNET_CONTAINER_multihashmap_create (num_peers);
2644 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2645 "setting setup_puts_and_gets for %d seconds in the future\n",
2647 GNUNET_SCHEDULER_add_delayed (
2648 GNUNET_TIME_relative_multiply (
2649 GNUNET_TIME_UNIT_SECONDS,
2652 &capture_current_topology, topo_ctx);
2655 GNUNET_SCHEDULER_add_delayed (
2656 GNUNET_TIME_relative_multiply (
2657 GNUNET_TIME_UNIT_SECONDS,
2660 &setup_puts_and_gets, NULL);
2662 if (dhtlog_handle != NULL)
2663 dhtlog_handle->insert_round (DHT_ROUND_NORMAL, rounds_finished);
2666 if ((GNUNET_YES != malicious_after_settle) || (settle_time == 0))
2668 GNUNET_SCHEDULER_add_now(&setup_malicious_peers, NULL);
2672 if ((GNUNET_YES == do_find_peer) && (settle_time > 0))
2674 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2675 "Scheduling find peer requests during \"settle\" time.\n");
2676 find_peer_context = GNUNET_malloc(sizeof(struct FindPeerContext));
2677 find_peer_context->count_peers_cb = &count_peers_cb;
2678 find_peer_context->endtime
2679 = GNUNET_TIME_relative_to_absolute (
2680 GNUNET_TIME_relative_multiply (
2681 GNUNET_TIME_UNIT_SECONDS,
2683 GNUNET_SCHEDULER_add_now (&schedule_find_peer_requests, find_peer_context);
2687 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2688 "Assuming automatic DHT find peer requests.\n");
2693 * Task to release DHT handles
2696 malicious_disconnect_task(void *cls,
2697 const struct GNUNET_SCHEDULER_TaskContext * tc)
2699 struct MaliciousContext *ctx = cls;
2700 outstanding_malicious--;
2701 malicious_completed++;
2702 ctx->disconnect_task = GNUNET_SCHEDULER_NO_TASK;
2703 GNUNET_DHT_disconnect (ctx->dht_handle);
2704 ctx->dht_handle = NULL;
2707 if (malicious_completed == malicious_getters + malicious_putters
2708 + malicious_droppers)
2710 fprintf (stderr, "Finished setting all malicious peers up!\n");
2715 * Task to release DHT handles
2718 malicious_done_task(void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
2720 struct MaliciousContext *ctx = cls;
2721 GNUNET_SCHEDULER_cancel (ctx->disconnect_task);
2722 GNUNET_SCHEDULER_add_now (&malicious_disconnect_task, ctx);
2726 * Set up some data, and call API PUT function
2729 set_malicious(void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
2731 struct MaliciousContext *ctx = cls;
2733 if (outstanding_malicious > DEFAULT_MAX_OUTSTANDING_GETS)
2735 GNUNET_SCHEDULER_add_delayed (
2736 GNUNET_TIME_relative_multiply (
2737 GNUNET_TIME_UNIT_MILLISECONDS,
2739 &set_malicious, ctx);
2743 if (ctx->dht_handle == NULL)
2745 ctx->dht_handle = GNUNET_DHT_connect (ctx->daemon->cfg, 1);
2746 outstanding_malicious++;
2749 GNUNET_assert(ctx->dht_handle != NULL);
2752 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Setting peer %s malicious type %d\n",
2753 ctx->daemon->shortname, ctx->malicious_type);
2756 switch (ctx->malicious_type)
2758 case GNUNET_MESSAGE_TYPE_DHT_MALICIOUS_GET:
2759 GNUNET_DHT_set_malicious_getter (ctx->dht_handle, malicious_get_frequency, &malicious_done_task, ctx);
2761 case GNUNET_MESSAGE_TYPE_DHT_MALICIOUS_PUT:
2762 GNUNET_DHT_set_malicious_putter (ctx->dht_handle, malicious_put_frequency, &malicious_done_task, ctx);
2764 case GNUNET_MESSAGE_TYPE_DHT_MALICIOUS_DROP:
2765 GNUNET_DHT_set_malicious_dropper (ctx->dht_handle, &malicious_done_task, ctx);
2771 ctx->disconnect_task
2772 = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_FOREVER_REL,
2773 &malicious_disconnect_task, ctx);
2778 * Choose the next peer from the peer group to set as malicious.
2779 * If we are doing a sybil attack, find the nearest peer to the
2780 * sybil location that has not already been set malicious. Otherwise
2781 * just choose a random not already chosen peer.
2783 * @param pg the peer group
2784 * @param bloom the bloomfilter which contains all peer already
2785 * chosen to be malicious
2788 choose_next_malicious (struct GNUNET_TESTING_PeerGroup *pg, struct GNUNET_CONTAINER_BloomFilter *bloom)
2795 struct GNUNET_TESTING_Daemon *temp_daemon;
2796 GNUNET_HashCode uid_hash;
2800 GNUNET_assert (bloom != NULL);
2802 if (GNUNET_YES == malicious_sybil)
2804 for (i = 0; i < num_peers; i++)
2806 temp_daemon = GNUNET_TESTING_daemon_get(pg, i);
2807 hash_from_uid(i, &uid_hash);
2808 /* Check if this peer matches the bloomfilter */
2809 if ((GNUNET_NO == GNUNET_TESTING_daemon_running(temp_daemon)) || (GNUNET_YES == GNUNET_CONTAINER_bloomfilter_test (bloom, &uid_hash)))
2812 bits_match = GNUNET_CRYPTO_hash_matching_bits (&temp_daemon->id.hashPubKey, &sybil_target);
2813 if (bits_match >= curr_distance)
2815 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);
2817 curr_distance = bits_match;
2823 nearest = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers);
2824 hash_from_uid(nearest, &uid_hash);
2826 while ((GNUNET_YES == GNUNET_CONTAINER_bloomfilter_test (bloom, &uid_hash)) && (count < num_peers))
2828 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Peer %d already in bloom (tried %d times)\n", nearest, count);
2829 nearest = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, num_peers);
2830 hash_from_uid(nearest, &uid_hash);
2833 if (count == num_peers)
2834 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Tried %d times to find a peer, selecting %d at random!!\n", count, nearest);
2841 * Select randomly from set of known peers,
2842 * set the desired number of peers to the
2843 * proper malicious types.
2846 setup_malicious_peers (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
2848 struct MaliciousContext *ctx;
2850 uint32_t temp_daemon;
2851 GNUNET_HashCode uid_hash;
2853 for (i = 0; i < malicious_getters; i++)
2855 ctx = GNUNET_malloc(sizeof(struct MaliciousContext));
2856 temp_daemon = choose_next_malicious(pg, malicious_bloom);
2857 ctx->daemon = GNUNET_TESTING_daemon_get(pg, temp_daemon);
2858 hash_from_uid(temp_daemon, &uid_hash);
2859 GNUNET_CONTAINER_bloomfilter_add(malicious_bloom, &uid_hash);
2860 ctx->malicious_type = GNUNET_MESSAGE_TYPE_DHT_MALICIOUS_GET;
2861 GNUNET_SCHEDULER_add_now (&set_malicious, ctx);
2865 for (i = 0; i < malicious_putters; i++)
2867 ctx = GNUNET_malloc(sizeof(struct MaliciousContext));
2868 temp_daemon = choose_next_malicious(pg, malicious_bloom);
2869 ctx->daemon = GNUNET_TESTING_daemon_get(pg, temp_daemon);
2870 hash_from_uid(temp_daemon, &uid_hash);
2871 GNUNET_CONTAINER_bloomfilter_add(malicious_bloom, &uid_hash);
2872 ctx->malicious_type = GNUNET_MESSAGE_TYPE_DHT_MALICIOUS_PUT;
2873 GNUNET_SCHEDULER_add_now (&set_malicious, ctx);
2877 for (i = 0; i < malicious_droppers; i++)
2879 ctx = GNUNET_malloc(sizeof(struct MaliciousContext));
2880 temp_daemon = choose_next_malicious(pg, malicious_bloom);
2881 ctx->daemon = GNUNET_TESTING_daemon_get(pg, temp_daemon);
2882 hash_from_uid(temp_daemon, &uid_hash);
2883 GNUNET_CONTAINER_bloomfilter_add(malicious_bloom, &uid_hash);
2884 ctx->malicious_type = GNUNET_MESSAGE_TYPE_DHT_MALICIOUS_DROP;
2885 GNUNET_SCHEDULER_add_now (&set_malicious, ctx);
2891 /* Forward declaration */
2893 topology_callback (void *cls,
2894 const struct GNUNET_PeerIdentity *first,
2895 const struct GNUNET_PeerIdentity *second,
2897 const struct GNUNET_CONFIGURATION_Handle *first_cfg,
2898 const struct GNUNET_CONFIGURATION_Handle *second_cfg,
2899 struct GNUNET_TESTING_Daemon *first_daemon,
2900 struct GNUNET_TESTING_Daemon *second_daemon,
2904 * Retry connecting two specific peers until they connect,
2905 * at a specific interval. These two peers previously failed
2906 * to connect, and we hope they continue to so that we can
2907 * debug the reason they are having issues.
2910 repeat_connect (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
2913 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Repeating connect attempt between %s and %s.\n", repeat_connect_peer1->shortname, repeat_connect_peer2->shortname);
2914 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Peer 1 configuration `%s'\n", repeat_connect_peer1->cfgfile);
2915 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Peer 2 configuration `%s'\n", repeat_connect_peer2->cfgfile);
2917 repeat_connect_task = GNUNET_SCHEDULER_NO_TASK;
2918 GNUNET_TESTING_daemons_connect(repeat_connect_peer1,
2919 repeat_connect_peer2,
2920 GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 60),
2921 2, &topology_callback, NULL);
2926 * This function is called whenever a connection attempt is finished between two of
2927 * the started peers (started with GNUNET_TESTING_daemons_start). The total
2928 * number of times this function is called should equal the number returned
2929 * from the GNUNET_TESTING_connect_topology call.
2931 * The emsg variable is NULL on success (peers connected), and non-NULL on
2932 * failure (peers failed to connect).
2935 topology_callback(void *cls, const struct GNUNET_PeerIdentity *first,
2936 const struct GNUNET_PeerIdentity *second, uint32_t distance,
2937 const struct GNUNET_CONFIGURATION_Handle *first_cfg,
2938 const struct GNUNET_CONFIGURATION_Handle *second_cfg,
2939 struct GNUNET_TESTING_Daemon *first_daemon,
2940 struct GNUNET_TESTING_Daemon *second_daemon, const char *emsg)
2942 struct TopologyIteratorContext *topo_ctx;
2943 unsigned long long duration;
2944 unsigned long long total_duration;
2945 unsigned int new_connections;
2946 unsigned int new_failed_connections;
2947 double conns_per_sec_recent;
2948 double conns_per_sec_total;
2949 double failed_conns_per_sec_recent;
2950 double failed_conns_per_sec_total;
2951 char *temp_conn_string;
2952 char *temp_conn_failed_string;
2956 if (repeat_connect_mode == GNUNET_YES)
2958 if ((first_daemon == repeat_connect_peer1) &&
2959 (second_daemon == repeat_connect_peer2))
2961 if (emsg != NULL) /* Peers failed to connect again! */
2963 GNUNET_assert(repeat_connect_task == GNUNET_SCHEDULER_NO_TASK);
2964 repeat_connect_task = GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 60), &repeat_connect, NULL);
2967 else /* Repeat peers actually connected! */
2969 if (repeat_connect_task != GNUNET_SCHEDULER_NO_TASK)
2970 GNUNET_SCHEDULER_cancel(repeat_connect_task);
2971 repeat_connect_peer1 = NULL;
2972 repeat_connect_peer2 = NULL;
2973 repeat_connect_mode = GNUNET_NO;
2974 GNUNET_TESTING_resume_connections(pg);
2975 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Resuming normal connection mode, debug connection was successful!\n");
2981 if (GNUNET_TIME_absolute_get_difference (connect_last_time,
2982 GNUNET_TIME_absolute_get ()).rel_value
2983 > GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS,
2984 CONN_UPDATE_DURATION).rel_value)
2986 /* Get number of new connections */
2987 new_connections = total_connections - previous_connections;
2989 /* Get number of new FAILED connections */
2990 new_failed_connections = failed_connections - previous_failed_connections;
2992 /* Get duration in seconds */
2994 = GNUNET_TIME_absolute_get_difference (connect_last_time,
2995 GNUNET_TIME_absolute_get ()).rel_value
2998 = GNUNET_TIME_absolute_get_difference (connect_start_time,
2999 GNUNET_TIME_absolute_get ()).rel_value
3002 failed_conns_per_sec_recent = (double) new_failed_connections / duration;
3003 failed_conns_per_sec_total = (double) failed_connections / total_duration;
3004 conns_per_sec_recent = (double) new_connections / duration;
3005 conns_per_sec_total = (double) total_connections / total_duration;
3007 GNUNET_ERROR_TYPE_WARNING,
3008 "Recent: %.2f/s, Total: %.2f/s, Recent failed: %.2f/s, total failed %.2f/s\n",
3009 conns_per_sec_recent, CONN_UPDATE_DURATION,
3010 conns_per_sec_total, failed_conns_per_sec_recent,
3011 failed_conns_per_sec_total);
3012 connect_last_time = GNUNET_TIME_absolute_get ();
3013 previous_connections = total_connections;
3014 previous_failed_connections = failed_connections;
3015 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
3016 "have %u total_connections, %u failed\n", total_connections,
3017 failed_connections);
3019 /* These conditions likely mean we've entered the death spiral of doom */
3020 if ((total_connections > 20000) &&
3021 (conns_per_sec_recent < 5.0) &&
3022 (conns_per_sec_total > 10.0) &&
3024 (repeat_connect_mode == GNUNET_NO))
3026 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Entering repeat connection attempt mode!\n");
3027 repeat_connect_peer1 = first_daemon;
3028 repeat_connect_peer2 = second_daemon;
3029 repeat_connect_mode = GNUNET_YES;
3030 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Stopping NEW connections from being scheduled!\n");
3031 GNUNET_TESTING_stop_connections(pg);
3032 repeat_connect_task = GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 60), &repeat_connect, NULL);
3039 total_connections++;
3041 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "connected peer %s to peer %s, distance %u\n",
3042 first_daemon->shortname,
3043 second_daemon->shortname,
3049 failed_connections++;
3051 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Failed to connect peer %s to peer %s with error :\n%s\n",
3052 first_daemon->shortname,
3053 second_daemon->shortname, emsg);
3055 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Failed to connect peer %s to peer %s with error :\n%s\n",
3056 first_daemon->shortname,
3057 second_daemon->shortname, emsg);
3062 if ((repeat_connect_mode == GNUNET_YES) )
3066 GNUNET_assert(peer_connect_meter != NULL);
3067 if (GNUNET_YES == update_meter (peer_connect_meter))
3070 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
3071 "Created %d total connections, which is our target number! Starting next phase of testing.\n",
3074 if (failed_connections > 0)
3075 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
3076 "While connecting, had %u failed connections.\n",
3077 failed_connections);
3078 if (dhtlog_handle != NULL)
3080 dhtlog_handle->update_connections (total_connections);
3081 dhtlog_handle->insert_topology (expected_connections);
3085 = GNUNET_TIME_absolute_get_difference (connect_start_time,
3086 GNUNET_TIME_absolute_get ()).rel_value
3088 failed_conns_per_sec_total = (double) failed_connections / total_duration;
3089 conns_per_sec_total = (double) total_connections / total_duration;
3090 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
3091 "Overall connection info --- Total: %u, Total Failed %u/s\n",
3092 total_connections, failed_connections);
3094 GNUNET_ERROR_TYPE_WARNING,
3095 "Overall connection info --- Total: %.2f/s, Total Failed %.2f/s\n",
3096 conns_per_sec_total, failed_conns_per_sec_total);
3098 GNUNET_asprintf (&temp_conn_string,
3099 "DHT Profiler Connection (trial %d)",
3101 GNUNET_asprintf (&temp_conn_failed_string,
3102 "DHT Profiler Connection failed (trial %d)",
3104 GNUNET_asprintf (&revision_str, "%llu", revision);
3106 if (GNUNET_YES == insert_gauger_data)
3107 GAUGER_ID("DHT_TESTING", temp_conn_string, conns_per_sec_total, "conns/s", revision_str);
3108 if (GNUNET_YES == insert_gauger_data)
3109 GAUGER_ID("DHT_TESTING", temp_conn_failed_string, failed_conns_per_sec_total, "failed_conns", revision_str);
3111 GNUNET_free(temp_conn_string);
3112 GNUNET_free(temp_conn_failed_string);
3113 GNUNET_asprintf (&temp_conn_string,
3114 "DHT Profiler Total Connections (trial %d)",
3117 &temp_conn_failed_string,
3118 "DHT Profiler Total Connections failed (trial %d)",
3120 if (GNUNET_YES == insert_gauger_data)
3121 GAUGER_ID("DHT_TESTING", temp_conn_string, total_connections, "conns", revision_str);
3122 if (GNUNET_YES == insert_gauger_data)
3123 GAUGER_ID("DHT_TESTING", temp_conn_failed_string, failed_connections, "failed conns", revision_str);
3124 GNUNET_free(temp_conn_string);
3125 GNUNET_free(temp_conn_failed_string);
3126 GNUNET_free(revision_str);
3128 GNUNET_SCHEDULER_cancel (die_task);
3130 if ((GNUNET_YES == dhtlog_minimal) && (NULL != dhtlog_handle))
3132 topo_ctx = GNUNET_malloc(sizeof(struct TopologyIteratorContext));
3133 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
3134 "Setting continue gets and puts as topo_cont\n");
3135 topo_ctx->cont = &continue_puts_and_gets;
3136 topo_ctx->peers_seen
3137 = GNUNET_CONTAINER_multihashmap_create (num_peers);
3138 GNUNET_SCHEDULER_add_now (&capture_current_topology, topo_ctx);
3143 GNUNET_ERROR_TYPE_WARNING,
3144 "For some reason, NOT scheduling final topology capture (settle_time %d, dhtlog_handle %s)!\n",
3145 settle_time, dhtlog_handle);
3146 GNUNET_SCHEDULER_add_now (&continue_puts_and_gets, NULL);
3149 else if (total_connections + failed_connections == expected_connections)
3151 GNUNET_SCHEDULER_cancel (die_task);
3153 = GNUNET_SCHEDULER_add_now (&end_badly,
3154 "from topology_callback (too many failed connections)");
3159 peers_started_callback(void *cls, const struct GNUNET_PeerIdentity *id,
3160 const struct GNUNET_CONFIGURATION_Handle *cfg,
3161 struct GNUNET_TESTING_Daemon *d, const char *emsg)
3165 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
3166 "Failed to start daemon with error: `%s'\n", emsg);
3169 GNUNET_assert (id != NULL);
3172 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Started daemon %llu out of %llu\n",
3173 (num_peers - peers_left) + 1, num_peers);
3178 if (GNUNET_YES == update_meter (peer_start_meter))
3181 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
3182 "All %d daemons started, now connecting peers!\n",
3185 GNUNET_SCHEDULER_cancel (die_task);
3187 expected_connections = UINT_MAX;
3188 if ((pg != NULL) && (peers_left == 0))
3190 connect_start_time = GNUNET_TIME_absolute_get ();
3191 expected_connections
3192 = GNUNET_TESTING_connect_topology (
3195 connect_topology_option,
3196 connect_topology_option_modifier,
3198 connect_attempts, NULL, NULL);
3200 peer_connect_meter = create_meter (expected_connections,
3201 "Peer connection ", GNUNET_YES);
3202 fprintf (stderr, "Have %d expected connections\n",
3203 expected_connections);
3206 if (expected_connections == GNUNET_SYSERR)
3209 = GNUNET_SCHEDULER_add_now (&end_badly,
3210 "from connect topology (bad return)");
3214 = GNUNET_SCHEDULER_add_delayed (
3215 GNUNET_TIME_relative_multiply (
3216 GNUNET_TIME_UNIT_SECONDS,
3217 DEFAULT_CONNECT_TIMEOUT
3218 * expected_connections),
3220 "from connect topology (timeout)");
3229 unsigned int create_expected_connections;
3230 peers_left = num_peers; /* Reset counter */
3231 create_expected_connections = GNUNET_TESTING_create_topology (pg, topology, blacklist_topology,
3232 blacklist_transports);
3233 if (create_expected_connections > 0)
3235 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
3236 "Topology set up, have %u expected connections, now starting peers!\n", create_expected_connections);
3237 GNUNET_TESTING_daemons_continue_startup (pg);
3241 GNUNET_SCHEDULER_cancel (die_task);
3242 die_task = GNUNET_SCHEDULER_add_now (&end_badly,
3243 "from create topology (bad return)");
3245 GNUNET_free_non_null(blacklist_transports);
3246 GNUNET_SCHEDULER_cancel (die_task);
3248 = GNUNET_SCHEDULER_add_delayed (
3249 GNUNET_TIME_relative_multiply (
3250 seconds_per_peer_start,
3253 "from continue startup (timeout)");
3257 * Callback indicating that the hostkey was created for a peer.
3260 * @param id the peer identity
3261 * @param d the daemon handle (pretty useless at this point, remove?)
3262 * @param emsg non-null on failure
3265 hostkey_callback(void *cls, const struct GNUNET_PeerIdentity *id,
3266 struct GNUNET_TESTING_Daemon *d, const char *emsg)
3270 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
3271 "Hostkey callback received error: %s\n", emsg);
3275 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
3276 "Hostkey (%d/%d) created for peer `%s'\n",
3277 num_peers - peers_left, num_peers, GNUNET_i2s(id));
3281 if (GNUNET_YES == update_meter (hostkey_meter))
3283 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
3284 "All %d hostkeys created, now creating topology!\n",
3286 GNUNET_SCHEDULER_cancel (die_task);
3287 /* Set up task in case topology creation doesn't finish
3288 * within a reasonable amount of time */
3289 die_task = GNUNET_SCHEDULER_add_delayed (DEFAULT_TOPOLOGY_TIMEOUT,
3291 "from create_topology");
3292 GNUNET_SCHEDULER_add_now (&create_topology, NULL);
3298 run(void *cls, char * const *args, const char *cfgfile,
3299 const struct GNUNET_CONFIGURATION_Handle *cfg)
3302 struct GNUNET_DHTLOG_TrialInfo trial_info;
3303 struct GNUNET_TESTING_Host *hosts;
3304 struct GNUNET_TESTING_Host *temphost;
3305 struct GNUNET_TESTING_Host *tempnext;
3307 char *connect_topology_str;
3308 char *blacklist_topology_str;
3309 char *connect_topology_option_str;
3310 char *connect_topology_option_modifier_string;
3312 char *topology_percentage_str;
3313 float topology_percentage;
3314 char *topology_probability_str;
3316 float topology_probability;
3317 unsigned long long temp_config_number;
3320 int strict_kademlia;
3324 char *churn_filename;
3331 rounds_finished = 0;
3332 memset (&trial_info, 0, sizeof(struct GNUNET_DHTLOG_TrialInfo));
3333 /* Get path from configuration file */
3334 if (GNUNET_YES != GNUNET_CONFIGURATION_get_value_string (cfg, "paths",
3342 /* Get number of peers to start from configuration */
3343 if (GNUNET_SYSERR == GNUNET_CONFIGURATION_get_value_number (cfg, "testing",
3348 GNUNET_ERROR_TYPE_WARNING,
3349 "Number of peers must be specified in section %s option %s\n",
3350 "TESTING", "NUM_PEERS");
3352 GNUNET_assert(num_peers > 0 && num_peers < ULONG_MAX);
3354 if (GNUNET_OK == GNUNET_CONFIGURATION_get_value_number (cfg, "testing",
3356 &temp_config_number))
3357 connect_timeout = GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS,
3358 temp_config_number);
3361 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Must provide option %s:%s!\n",
3362 "testing", "connect_timeout");
3366 if (GNUNET_OK != GNUNET_CONFIGURATION_get_value_number (cfg, "testing",
3370 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Must provide option %s:%s!\n",
3371 "testing", "connect_attempts");
3376 != GNUNET_CONFIGURATION_get_value_number (cfg, "testing",
3377 "max_outstanding_connections",
3378 &max_outstanding_connections))
3380 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Must provide option %s:%s!\n",
3381 "testing", "max_outstanding_connections");
3385 if (GNUNET_OK != GNUNET_CONFIGURATION_get_value_number (cfg, "testing",
3386 "max_concurrent_ssh",
3387 &max_concurrent_ssh))
3389 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Must provide option %s:%s!\n",
3390 "testing", "max_concurrent_ssh");
3395 * Get DHT specific testing options.
3397 if ((GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno (cfg, "dht_testing",
3400 == GNUNET_CONFIGURATION_get_value_yesno (cfg, "dht_testing",
3401 "mysql_logging_extended"))
3403 == GNUNET_CONFIGURATION_get_value_yesno (cfg, "dht_testing",
3404 "mysql_logging_minimal")))
3407 == GNUNET_CONFIGURATION_get_value_yesno (cfg, "dht_testing",
3408 "mysql_logging_minimal"))
3409 dhtlog_minimal = GNUNET_YES;
3411 dhtlog_handle = GNUNET_DHTLOG_connect (cfg);
3412 if (dhtlog_handle == NULL)
3414 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
3415 "Could not connect to mysql server for logging, will NOT log dht operations!");
3421 stop_closest = GNUNET_CONFIGURATION_get_value_yesno (cfg, "dht",
3423 if (stop_closest == GNUNET_SYSERR)
3424 stop_closest = GNUNET_NO;
3426 stop_found = GNUNET_CONFIGURATION_get_value_yesno (cfg, "dht", "stop_found");
3427 if (stop_found == GNUNET_SYSERR)
3428 stop_found = GNUNET_NO;
3430 strict_kademlia = GNUNET_CONFIGURATION_get_value_yesno (cfg, "dht",
3432 if (strict_kademlia == GNUNET_SYSERR)
3433 strict_kademlia = GNUNET_NO;
3435 if (GNUNET_OK != GNUNET_CONFIGURATION_get_value_string (cfg, "dht_testing",
3438 trialmessage = NULL;
3441 /** Check for a churn file to do churny simulation */
3442 if (GNUNET_OK == GNUNET_CONFIGURATION_get_value_string (cfg, "dht_testing",
3446 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Reading churn data from %s\n",
3448 if (GNUNET_OK != GNUNET_DISK_file_test (churn_filename))
3450 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Error reading churn file!\n");
3451 GNUNET_free_non_null(trialmessage);
3452 GNUNET_free(churn_filename);
3455 if ((0 != STAT (churn_filename, &frstat)) || (frstat.st_size == 0))
3457 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
3458 "Could not open file specified for churn data, ending test!");
3460 GNUNET_free_non_null(trialmessage);
3461 GNUNET_free(churn_filename);
3465 churn_data = GNUNET_malloc_large (frstat.st_size);
3466 GNUNET_assert(churn_data != NULL);
3467 if (frstat.st_size != GNUNET_DISK_fn_read (churn_filename, churn_data,
3471 GNUNET_ERROR_TYPE_ERROR,
3472 "Could not read file %s specified for churn, ending test!",
3474 GNUNET_free (churn_filename);
3475 GNUNET_free (churn_data);
3476 GNUNET_free_non_null(trialmessage);
3480 GNUNET_free_non_null(churn_filename);
3484 /* Read the first line */
3485 while (count < frstat.st_size)
3488 if (((churn_data[count] == '\n')) && (buf != &churn_data[count]))
3490 churn_data[count] = '\0';
3491 if (1 != sscanf (buf, "%u", &churn_rounds))
3493 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
3494 "Failed to read number of rounds from churn file, ending test!\n");
3496 GNUNET_free_non_null(trialmessage);
3497 GNUNET_free_non_null(churn_data);
3500 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
3501 "Read %u rounds from churn file\n", churn_rounds);
3502 buf = &churn_data[count + 1];
3503 churn_array = GNUNET_malloc(sizeof(unsigned int) * churn_rounds);
3504 break; /* Done with this part */
3509 != GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing",
3513 churns_per_round = (unsigned long long) churn_rounds;
3517 while ((count < frstat.st_size) && (line_number < churn_rounds))
3520 if (((churn_data[count] == '\n')) && (buf != &churn_data[count]))
3522 churn_data[count] = '\0';
3524 ret = sscanf (buf, "%u", &churn_array[line_number]);
3527 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
3528 "Read %u peers in round %u\n",
3529 churn_array[line_number], line_number);
3534 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
3535 "Error reading line `%s' in hostfile\n", buf);
3536 buf = &churn_data[count + 1];
3539 buf = &churn_data[count + 1];
3541 else if (churn_data[count] == '\n') /* Blank line */
3542 buf = &churn_data[count + 1];
3545 GNUNET_free_non_null(churn_data);
3547 /* Check for a hostfile containing user@host:port triples */
3549 != GNUNET_CONFIGURATION_get_value_string (cfg, "testing", "hostfile",
3556 if (hostfile != NULL)
3558 if (GNUNET_OK != GNUNET_DISK_file_test (hostfile))
3559 GNUNET_DISK_fn_write (hostfile, NULL, 0, GNUNET_DISK_PERM_USER_READ
3560 | GNUNET_DISK_PERM_USER_WRITE);
3561 if ((0 != STAT (hostfile, &frstat)) || (frstat.st_size == 0))
3563 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
3564 "Could not open file specified for host list, ending test!");
3566 GNUNET_free_non_null(trialmessage);
3567 GNUNET_free(hostfile);
3571 data = GNUNET_malloc_large (frstat.st_size);
3572 GNUNET_assert(data != NULL);
3574 != GNUNET_DISK_fn_read (hostfile, data, frstat.st_size))
3577 GNUNET_ERROR_TYPE_ERROR,
3578 "Could not read file %s specified for host list, ending test!",
3580 GNUNET_free (hostfile);
3582 GNUNET_free_non_null(trialmessage);
3586 GNUNET_free_non_null(hostfile);
3590 while (count < frstat.st_size - 1)
3593 if (((data[count] == '\n')) && (buf != &data[count]))
3596 temphost = GNUNET_malloc(sizeof(struct GNUNET_TESTING_Host));
3597 ret = sscanf (buf, "%a[a-zA-Z0-9_]@%a[a-zA-Z0-9.]:%hd",
3598 &temphost->username, &temphost->hostname,
3603 GNUNET_ERROR_TYPE_DEBUG,
3604 "Successfully read host %s, port %d and user %s from file\n",
3605 temphost->hostname, temphost->port,
3606 temphost->username);
3610 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
3611 "Error reading line `%s' in hostfile\n", buf);
3612 GNUNET_free(temphost);
3613 buf = &data[count + 1];
3616 temphost->next = hosts;
3618 buf = &data[count + 1];
3620 else if ((data[count] == '\n') || (data[count] == '\0'))
3621 buf = &data[count + 1];
3624 GNUNET_free_non_null(data);
3625 if (GNUNET_OK != GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing",
3626 "malicious_getters",
3627 &malicious_getters))
3628 malicious_getters = 0;
3630 if (GNUNET_OK != GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing",
3631 "malicious_putters",
3632 &malicious_putters))
3633 malicious_putters = 0;
3635 if (GNUNET_OK != GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing",
3636 "malicious_droppers",
3637 &malicious_droppers))
3638 malicious_droppers = 0;
3640 if (GNUNET_OK != GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing",
3645 if (GNUNET_SYSERR == GNUNET_CONFIGURATION_get_value_number (cfg,
3649 num_puts = num_peers;
3652 == GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing",
3655 put_replication = DEFAULT_PUT_REPLICATION;
3657 if (GNUNET_SYSERR == GNUNET_CONFIGURATION_get_value_number (cfg,
3661 num_gets = num_peers;
3664 == GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing",
3667 get_replication = DEFAULT_GET_REPLICATION;
3669 if (GNUNET_OK == GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing",
3671 &temp_config_number))
3672 find_peer_delay = GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS,
3673 temp_config_number);
3675 find_peer_delay = DEFAULT_FIND_PEER_DELAY;
3678 == GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing",
3679 "concurrent_find_peers",
3680 &temp_config_number))
3681 max_outstanding_find_peers = temp_config_number;
3683 max_outstanding_find_peers = DEFAULT_MAX_OUTSTANDING_FIND_PEERS;
3685 if (GNUNET_OK == GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing",
3687 &temp_config_number))
3688 get_timeout = GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS,
3689 temp_config_number);
3691 get_timeout = DEFAULT_GET_TIMEOUT;
3693 if (GNUNET_OK == GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing",
3695 &temp_config_number))
3696 max_outstanding_puts = temp_config_number;
3698 max_outstanding_puts = DEFAULT_MAX_OUTSTANDING_PUTS;
3700 if (GNUNET_OK == GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing",
3702 &temp_config_number))
3703 max_outstanding_gets = temp_config_number;
3705 max_outstanding_gets = DEFAULT_MAX_OUTSTANDING_GETS;
3707 if (GNUNET_OK == GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing",
3709 &temp_config_number))
3710 all_get_timeout = GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS,
3711 temp_config_number);
3713 all_get_timeout.rel_value = get_timeout.rel_value * num_gets;
3715 if (GNUNET_OK == GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing",
3717 &temp_config_number))
3718 get_delay = GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS,
3719 temp_config_number);
3721 get_delay = DEFAULT_GET_DELAY;
3723 if (GNUNET_OK == GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing",
3725 &temp_config_number))
3726 put_delay = GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS,
3727 temp_config_number);
3729 put_delay = DEFAULT_PUT_DELAY;
3731 if (GNUNET_OK == GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing",
3732 "peer_start_timeout",
3733 &temp_config_number))
3734 seconds_per_peer_start
3735 = GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS,
3736 temp_config_number);
3738 seconds_per_peer_start = DEFAULT_SECONDS_PER_PEER_START;
3740 if (GNUNET_OK == GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing",
3742 &temp_config_number))
3743 test_data_size = temp_config_number;
3745 test_data_size = DEFAULT_TEST_DATA_SIZE;
3748 * Get testing related options.
3750 if (GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno (cfg, "DHT_TESTING",
3752 replicate_same = GNUNET_YES;
3755 * Get testing related options.
3757 if (GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno (cfg, "DHT_TESTING",
3759 get_from_same = GNUNET_YES;
3762 == GNUNET_CONFIGURATION_get_value_time (cfg, "DHT_TESTING",
3763 "MALICIOUS_GET_FREQUENCY",
3764 &malicious_get_frequency))
3765 malicious_get_frequency = DEFAULT_MALICIOUS_GET_FREQUENCY;
3768 == GNUNET_CONFIGURATION_get_value_time (cfg, "DHT_TESTING",
3769 "MALICIOUS_PUT_FREQUENCY",
3770 &malicious_put_frequency))
3771 malicious_put_frequency = DEFAULT_MALICIOUS_PUT_FREQUENCY;
3774 == GNUNET_CONFIGURATION_get_value_yesno (cfg, "DHT_TESTING",
3775 "MALICIOUS_AFTER_SETTLE"))
3776 malicious_after_settle = GNUNET_YES;
3778 if (GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno (cfg, "DHT_TESTING",
3781 /* Set up the malicious target at random for this round */
3782 GNUNET_CRYPTO_hash_create_random (GNUNET_CRYPTO_QUALITY_WEAK,
3784 malicious_sybil = GNUNET_YES;
3787 /* Create the bloomfilter for choosing which peers to set malicious */
3789 /* Bloomfilter size must be 2^k for some integer k */
3791 while (1 << k < malicious_droppers)
3793 if (malicious_droppers > 0)
3794 malicious_bloom = GNUNET_CONTAINER_bloomfilter_init (NULL, 1 << k,
3797 /* The normal behavior of the DHT is to do find peer requests
3798 * on its own. Only if this is explicitly turned off should
3799 * the testing driver issue find peer requests (even though
3800 * this is likely the default when testing).
3802 if (GNUNET_NO == GNUNET_CONFIGURATION_get_value_yesno (cfg, "dht",
3804 do_find_peer = GNUNET_YES;
3806 if (GNUNET_NO == GNUNET_CONFIGURATION_get_value_yesno (cfg, "dht",
3807 "insert_gauger_data"))
3808 insert_gauger_data = GNUNET_YES;
3810 if (GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno (cfg, "dht",
3812 in_dht_replication = GNUNET_YES;
3814 if (GNUNET_YES != GNUNET_CONFIGURATION_get_value_number (cfg, "DHT_TESTING",
3819 if (GNUNET_YES != GNUNET_CONFIGURATION_get_value_number (cfg, "DHT_TESTING",
3824 if (GNUNET_YES == GNUNET_CONFIGURATION_get_value_number (cfg, "DHT_TESTING",
3826 &temp_config_number))
3827 find_peer_delay = GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS,
3828 temp_config_number);
3830 find_peer_delay = DEFAULT_FIND_PEER_DELAY;
3832 if (GNUNET_YES != GNUNET_CONFIGURATION_get_value_number (cfg, "DHT_TESTING",
3838 == GNUNET_CONFIGURATION_get_value_number (cfg, "DHT_TESTING",
3839 "OUTSTANDING_FIND_PEERS",
3840 &max_outstanding_find_peers))
3841 max_outstanding_find_peers = DEFAULT_MAX_OUTSTANDING_FIND_PEERS;
3843 if (GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno (cfg, "dht",
3845 max_outstanding_find_peers = max_outstanding_find_peers * 1;
3847 find_peer_offset = GNUNET_TIME_relative_divide (find_peer_delay,
3848 max_outstanding_find_peers);
3850 if (GNUNET_SYSERR == GNUNET_CONFIGURATION_get_value_number (cfg,
3857 == GNUNET_CONFIGURATION_get_value_number (cfg, "dht_testing",
3858 "target_total_connections",
3859 &target_total_connections))
3860 || (target_total_connections == 0))
3861 target_total_connections = connection_estimate (num_peers,
3862 DEFAULT_BUCKET_SIZE);
3864 topology_str = NULL;
3865 if ((GNUNET_YES == GNUNET_CONFIGURATION_get_value_string (cfg, "testing",
3868 && (GNUNET_NO == GNUNET_TESTING_topology_get (&topology, topology_str)))
3870 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
3871 "Invalid topology `%s' given for section %s option %s\n",
3872 topology_str, "TESTING", "TOPOLOGY");
3873 topology = GNUNET_TESTING_TOPOLOGY_CLIQUE; /* Defaults to NONE, so set better default here */
3877 != GNUNET_CONFIGURATION_get_value_string (cfg, "testing", "percentage",
3878 &topology_percentage_str))
3879 topology_percentage = 0.5;
3882 topology_percentage = atof (topology_percentage_str);
3883 GNUNET_free(topology_percentage_str);
3887 != GNUNET_CONFIGURATION_get_value_string (cfg, "testing", "probability",
3888 &topology_probability_str))
3889 topology_probability = 0.5;
3892 topology_probability = atof (topology_probability_str);
3893 GNUNET_free(topology_probability_str);
3897 == GNUNET_CONFIGURATION_get_value_string (cfg, "testing",
3899 &connect_topology_str))
3900 && (GNUNET_NO == GNUNET_TESTING_topology_get (&connect_topology,
3901 connect_topology_str)))
3904 GNUNET_ERROR_TYPE_WARNING,
3905 "Invalid connect topology `%s' given for section %s option %s\n",
3906 connect_topology_str, "TESTING", "CONNECT_TOPOLOGY");
3908 GNUNET_free_non_null(connect_topology_str);
3911 == GNUNET_CONFIGURATION_get_value_string (cfg, "testing",
3912 "connect_topology_option",
3913 &connect_topology_option_str))
3915 == GNUNET_TESTING_topology_option_get (&connect_topology_option,
3916 connect_topology_option_str)))
3919 GNUNET_ERROR_TYPE_WARNING,
3920 "Invalid connect topology option `%s' given for section %s option %s\n",
3921 connect_topology_option_str, "TESTING",
3922 "CONNECT_TOPOLOGY_OPTION");
3923 connect_topology_option = GNUNET_TESTING_TOPOLOGY_OPTION_ALL; /* Defaults to NONE, set to ALL */
3925 GNUNET_free_non_null(connect_topology_option_str);
3928 == GNUNET_CONFIGURATION_get_value_string (
3931 "connect_topology_option_modifier",
3932 &connect_topology_option_modifier_string))
3934 if (sscanf (connect_topology_option_modifier_string, "%lf",
3935 &connect_topology_option_modifier) != 1)
3938 GNUNET_ERROR_TYPE_WARNING,
3939 _("Invalid value `%s' for option `%s' in section `%s': expected float\n"),
3940 connect_topology_option_modifier_string,
3941 "connect_topology_option_modifier", "TESTING");
3943 GNUNET_free (connect_topology_option_modifier_string);
3947 != GNUNET_CONFIGURATION_get_value_string (cfg, "testing",
3948 "blacklist_transports",
3949 &blacklist_transports))
3950 blacklist_transports = NULL;
3953 == GNUNET_CONFIGURATION_get_value_string (cfg, "testing",
3954 "blacklist_topology",
3955 &blacklist_topology_str))
3956 && (GNUNET_NO == GNUNET_TESTING_topology_get (&blacklist_topology,
3957 blacklist_topology_str)))
3959 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
3960 "Invalid topology `%s' given for section %s option %s\n",
3961 topology_str, "TESTING", "BLACKLIST_TOPOLOGY");
3963 GNUNET_free_non_null(topology_str);
3964 GNUNET_free_non_null(blacklist_topology_str);
3966 /* Set peers_left so we know when all peers started */
3967 peers_left = num_peers;
3969 /* Set up a task to end testing if peer start fails */
3971 = GNUNET_SCHEDULER_add_delayed (
3972 GNUNET_TIME_relative_multiply (
3973 seconds_per_peer_start,
3976 "didn't generate all hostkeys within allowed startup time!");
3978 if (dhtlog_handle == NULL)
3979 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "dhtlog_handle is NULL!");
3981 trial_info.other_identifier = (unsigned int) trial_to_run;
3982 trial_info.num_nodes = peers_left;
3983 trial_info.topology = topology;
3984 trial_info.blacklist_topology = blacklist_topology;
3985 trial_info.connect_topology = connect_topology;
3986 trial_info.connect_topology_option = connect_topology_option;
3987 trial_info.connect_topology_option_modifier
3988 = connect_topology_option_modifier;
3989 trial_info.topology_percentage = topology_percentage;
3990 trial_info.topology_probability = topology_probability;
3991 trial_info.puts = num_puts;
3992 trial_info.gets = num_gets;
3993 trial_info.concurrent = max_outstanding_gets;
3994 trial_info.settle_time = settle_time;
3995 trial_info.num_rounds = total_rounds;
3996 trial_info.malicious_getters = malicious_getters;
3997 trial_info.malicious_putters = malicious_putters;
3998 trial_info.malicious_droppers = malicious_droppers;
3999 trial_info.malicious_get_frequency = malicious_get_frequency.rel_value;
4000 trial_info.malicious_put_frequency = malicious_put_frequency.rel_value;
4001 trial_info.stop_closest = stop_closest;
4002 trial_info.stop_found = stop_found;
4003 trial_info.strict_kademlia = strict_kademlia;
4005 if (trialmessage != NULL)
4006 trial_info.message = trialmessage;
4008 trial_info.message = "";
4010 if (dhtlog_handle != NULL)
4011 dhtlog_handle->insert_trial (&trial_info);
4013 GNUNET_free_non_null(trialmessage);
4015 hostkey_meter = create_meter (peers_left, "Hostkeys created ", GNUNET_YES);
4016 peer_start_meter = create_meter (peers_left, "Peers started ", GNUNET_YES);
4018 put_meter = create_meter (num_puts, "Puts completed ", GNUNET_YES);
4019 get_meter = create_meter (num_gets, "Gets completed ", GNUNET_YES);
4021 = GNUNET_TESTING_daemons_start (
4024 max_outstanding_connections,
4026 GNUNET_TIME_relative_multiply (
4027 seconds_per_peer_start,
4029 &hostkey_callback, NULL,
4030 &peers_started_callback, NULL,
4031 &topology_callback, NULL, hosts);
4033 while (temphost != NULL)
4035 tempnext = temphost->next;
4036 GNUNET_free (temphost->username);
4037 GNUNET_free (temphost->hostname);
4038 GNUNET_free (temphost);
4039 temphost = tempnext;
4044 main(int argc, char *argv[])
4047 struct GNUNET_GETOPT_CommandLineOption options[] =
4049 GNUNET_GETOPT_OPTION_END };
4051 ret = GNUNET_PROGRAM_run (argc, argv, "gnunet-dht-driver", "nohelp", options,
4054 if (malicious_bloom != NULL)
4055 GNUNET_CONTAINER_bloomfilter_free (malicious_bloom);
4057 if (ret != GNUNET_OK)
4059 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
4060 "`gnunet-dht-driver': Failed with error code %d\n", ret);
4064 * Need to remove base directory, subdirectories taken care
4065 * of by the testing framework.
4067 if (GNUNET_DISK_directory_remove (test_directory) != GNUNET_OK)
4069 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
4070 "Failed to remove testing directory %s\n", test_directory);
4075 /* end of gnunet-dht-driver.c */