2 This file is part of GNUnet
3 (C) 2008, 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 2, 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.
22 * @file testing/testing_group.c
23 * @brief convenience API for writing testcases for GNUnet
24 * @author Christian Grothoff
27 #include "gnunet_arm_service.h"
28 #include "gnunet_testing_lib.h"
30 #define VERBOSE_TESTING GNUNET_YES
33 * Lowest port used for GNUnet testing. Should be high enough to not
34 * conflict with other applications running on the hosts but be low
35 * enough to not conflict with client-ports (typically starting around
38 #define LOW_PORT 10000
41 * Highest port used for GNUnet testing. Should be low enough to not
42 * conflict with the port range for "local" ports (client apps; see
43 * /proc/sys/net/ipv4/ip_local_port_range on Linux for example).
45 #define HIGH_PORT 32000
47 #define MAX_OUTSTANDING_CONNECTIONS 50
49 #define CONNECT_TIMEOUT GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 160)
51 #define CONNECT_ATTEMPTS 8
54 * Prototype of a function called whenever two peers would be connected
55 * in a certain topology.
57 typedef int (*GNUNET_TESTING_ConnectionProcessor)
58 (struct GNUNET_TESTING_PeerGroup *pg, unsigned int first, unsigned int second);
63 * The group of peers being restarted
65 struct GNUNET_TESTING_PeerGroup *peer_group;
68 * How many peers have been restarted thus far
70 unsigned int peers_restarted;
73 * How many peers got an error when restarting
75 unsigned int peers_restart_failed;
78 * The function to call once all peers have been restarted
80 GNUNET_TESTING_NotifyCompletion callback;
83 * Closure for callback function
89 struct CreateTopologyContext
93 * Function to call with number of connections
95 GNUNET_TESTING_NotifyConnections cont;
98 * Closure for connection notification
104 struct PeerConnection
109 struct PeerConnection *next;
112 * Pointer to daemon handle
114 struct GNUNET_TESTING_Daemon *daemon;
120 * Data we keep per peer.
125 * (Initial) configuration of the host.
126 * (initial because clients could change
127 * it and we would not know about those
130 struct GNUNET_CONFIGURATION_Handle *cfg;
133 * Handle for controlling the daemon.
135 struct GNUNET_TESTING_Daemon *daemon;
138 * The peergroup this peer belongs to.
140 struct GNUNET_TESTING_PeerGroup *pg;
143 * Linked list of peer connections (pointers)
145 //struct PeerConnection *connected_peers;
147 * Hash map of allowed peer connections (F2F created topology)
149 struct GNUNET_CONTAINER_MultiHashMap *allowed_peers;
152 * Hash map of blacklisted peers
154 struct GNUNET_CONTAINER_MultiHashMap *blacklisted_peers;
157 * Hash map of peer connections
159 struct GNUNET_CONTAINER_MultiHashMap *connect_peers;
162 * Temporary hash map of peer connections
164 struct GNUNET_CONTAINER_MultiHashMap *connect_peers_working_set;
167 * Temporary variable for topology creation, should be reset before
168 * creating any topology so the count is valid once finished.
175 * Data we keep per host.
185 * Lowest port that we have not yet used
193 * Handle to a group of GNUnet peers.
195 struct GNUNET_TESTING_PeerGroup
200 struct GNUNET_SCHEDULER_Handle *sched;
203 * Configuration template.
205 const struct GNUNET_CONFIGURATION_Handle *cfg;
208 * Function to call on each started daemon.
210 GNUNET_TESTING_NotifyDaemonRunning cb;
218 * Function to call on each topology connection created
220 GNUNET_TESTING_NotifyConnection notify_connection;
223 * Callback for notify_connection
225 void *notify_connection_cls;
228 * NULL-terminated array of information about
231 struct HostData *hosts;
234 * Array of "total" peers.
236 struct PeerData *peers;
239 * Number of peers in this group.
244 * At what time should we fail the peer startup process?
246 struct GNUNET_TIME_Absolute max_timeout;
250 * Convert unique ID to hash code.
252 * @param uid unique ID to convert
253 * @param hash set to uid (extended with zeros)
256 hash_from_uid (uint32_t uid,
257 GNUNET_HashCode *hash)
259 memset (hash, 0, sizeof(GNUNET_HashCode));
260 *((uint32_t*)hash) = uid;
264 * Convert hash code to unique ID.
266 * @param uid unique ID to convert
267 * @param hash set to uid (extended with zeros)
270 uid_from_hash (const GNUNET_HashCode *hash, uint32_t *uid)
272 memcpy (uid, hash, sizeof(uint32_t));
277 struct GNUNET_CONFIGURATION_Handle *ret;
279 const char *hostname;
283 struct ConnectContext
285 struct GNUNET_TESTING_Daemon *first;
287 struct GNUNET_TESTING_Daemon *second;
289 struct GNUNET_TESTING_PeerGroup *pg;
293 * Number of connects we are waiting on, allows us to rate limit
296 static int outstanding_connects;
300 * Function to iterate over options. Copies
301 * the options to the target configuration,
302 * updating PORT values as needed.
305 * @param section name of the section
306 * @param option name of the option
307 * @param value value of the option
310 update_config (void *cls,
311 const char *section, const char *option, const char *value)
313 struct UpdateContext *ctx = cls;
317 if ((0 == strcmp (option, "PORT")) && (1 == sscanf (value, "%u", &ival)))
319 GNUNET_snprintf (cval, sizeof (cval), "%u", ctx->nport++);
323 if ((0 == strcmp (option, "HOSTNAME")) && (ctx->hostname != NULL))
325 value = ctx->hostname;
328 GNUNET_CONFIGURATION_set_value_string (ctx->ret, section, option, value);
333 * Create a new configuration using the given configuration
334 * as a template; however, each PORT in the existing cfg
335 * must be renumbered by incrementing "*port". If we run
336 * out of "*port" numbers, return NULL.
338 * @param cfg template configuration
339 * @param port port numbers to use, update to reflect
340 * port numbers that were used
341 * @param hostname hostname of the controlling host, to allow control connections from
343 * @return new configuration, NULL on error
345 static struct GNUNET_CONFIGURATION_Handle *
346 make_config (const struct GNUNET_CONFIGURATION_Handle *cfg, uint16_t * port, const char *hostname)
348 struct UpdateContext uc;
355 uc.ret = GNUNET_CONFIGURATION_create ();
356 uc.hostname = hostname;
358 GNUNET_CONFIGURATION_iterate (cfg, &update_config, &uc);
359 if (uc.nport >= HIGH_PORT)
362 GNUNET_CONFIGURATION_destroy (uc.ret);
366 if (GNUNET_CONFIGURATION_get_value_string(cfg, "testing", "control_host", &control_host) == GNUNET_OK)
368 GNUNET_asprintf(&allowed_hosts, "%s; 127.0.0.1;", control_host);
369 GNUNET_CONFIGURATION_set_value_string(uc.ret, "core", "ACCEPT_FROM", allowed_hosts);
370 GNUNET_free_non_null(control_host);
371 GNUNET_free(allowed_hosts);
375 /* arm needs to know to allow connections from the host on which it is running,
376 * otherwise gnunet-arm is unable to connect to it in some instances */
377 if (hostname != NULL)
379 GNUNET_asprintf(&allowed_hosts, "%s; 127.0.0.1;", hostname);
380 GNUNET_CONFIGURATION_set_value_string(uc.ret, "arm", "ACCEPT_FROM", allowed_hosts);
381 GNUNET_free(allowed_hosts);
384 *port = (uint16_t) uc.nport;
390 * Add entries to the peers connect list
392 * @param pg the peer group we are working with
393 * @param first index of the first peer
394 * @param second index of the second peer
396 * @return the number of connections added (can be 0, 1 or 2)
397 * technically should only be 0 or 2, but the small price
398 * of iterating over the lists (hashmaps in the future)
399 * for being sure doesn't bother me!
403 add_actual_connections(struct GNUNET_TESTING_PeerGroup *pg, unsigned int first, unsigned int second)
409 GNUNET_HashCode hash_first;
410 GNUNET_HashCode hash_second;
412 hash_from_uid(first, &hash_first);
413 hash_from_uid(second, &hash_second);
415 add_first = GNUNET_NO;
416 if (GNUNET_NO == GNUNET_CONTAINER_multihashmap_contains(pg->peers[first].connect_peers, &hash_second))
418 add_first = GNUNET_YES;
421 add_second = GNUNET_NO;
422 if (GNUNET_NO == GNUNET_CONTAINER_multihashmap_contains(pg->peers[second].connect_peers, &hash_first))
424 add_second = GNUNET_YES;
430 GNUNET_assert(GNUNET_OK == GNUNET_CONTAINER_multihashmap_put(pg->peers[first].connect_peers, &hash_second, pg->peers[second].daemon, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY));
431 pg->peers[first].num_connections++;
437 GNUNET_assert(GNUNET_OK == GNUNET_CONTAINER_multihashmap_put(pg->peers[second].connect_peers, &hash_first, pg->peers[first].daemon, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY));
438 pg->peers[second].num_connections++;
447 * Add entries to the peers allowed connections list
449 * @param pg the peer group we are working with
450 * @param first index of the first peer
451 * @param second index of the second peer
453 * @return the number of connections added (can be 0, 1 or 2)
454 * technically should only be 0 or 2, but the small price
455 * of iterating over the lists (hashmaps in the future)
456 * for being sure doesn't bother me!
460 add_allowed_connections(struct GNUNET_TESTING_PeerGroup *pg, unsigned int first, unsigned int second)
464 struct PeerConnection *first_iter;
465 struct PeerConnection *second_iter;
466 struct PeerConnection *new_first;
467 struct PeerConnection *new_second;
472 GNUNET_HashCode hash_first;
473 GNUNET_HashCode hash_second;
475 hash_from_uid(first, &hash_first);
476 hash_from_uid(second, &hash_second);
478 add_first = GNUNET_NO;
479 if (GNUNET_NO == GNUNET_CONTAINER_multihashmap_contains(pg->peers[first].allowed_peers, &hash_second))
481 add_first = GNUNET_YES;
484 add_second = GNUNET_NO;
485 if (GNUNET_NO == GNUNET_CONTAINER_multihashmap_contains(pg->peers[second].allowed_peers, &hash_first))
487 add_second = GNUNET_YES;
490 first_iter = pg->peers[first].connected_peers;
491 while (first_iter != NULL)
493 if (first_iter->daemon == pg->peers[second].daemon)
494 add_first = GNUNET_NO;
495 first_iter = first_iter->next;
498 second_iter = pg->peers[second].connected_peers;
499 add_second = GNUNET_YES;
500 while (second_iter != NULL)
502 if (second_iter->daemon == pg->peers[first].daemon)
503 add_second = GNUNET_NO;
504 second_iter = second_iter->next;
511 GNUNET_assert(GNUNET_OK == GNUNET_CONTAINER_multihashmap_put(pg->peers[first].allowed_peers, &hash_second, pg->peers[second].daemon, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY));
513 new_first = GNUNET_malloc(sizeof(struct PeerConnection));
514 new_first->daemon = pg->peers[second].daemon;
515 new_first->next = pg->peers[first].connected_peers;
516 pg->peers[first].connected_peers = new_first;
518 pg->peers[first].num_connections++;
524 GNUNET_assert(GNUNET_OK == GNUNET_CONTAINER_multihashmap_put(pg->peers[second].allowed_peers, &hash_first, pg->peers[first].daemon, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY));
526 new_second = GNUNET_malloc(sizeof(struct PeerConnection));
527 new_second->daemon = pg->peers[first].daemon;
528 new_second->next = pg->peers[second].connected_peers;
529 pg->peers[second].connected_peers = new_second;
530 pg->peers[first].num_connections++;
532 pg->peers[second].num_connections++;
540 * Add entries to the peers blacklisted list
542 * @param pg the peer group we are working with
543 * @param first index of the first peer
544 * @param second index of the second peer
546 * @return the number of connections added (can be 0, 1 or 2)
550 blacklist_connections(struct GNUNET_TESTING_PeerGroup *pg, unsigned int first, unsigned int second)
555 GNUNET_HashCode hash_first;
556 GNUNET_HashCode hash_second;
558 hash_from_uid(first, &hash_first);
559 hash_from_uid(second, &hash_second);
561 add_first = GNUNET_NO;
562 if (GNUNET_NO == GNUNET_CONTAINER_multihashmap_contains(pg->peers[first].blacklisted_peers, &hash_second))
564 add_first = GNUNET_YES;
567 add_second = GNUNET_NO;
568 if (GNUNET_NO == GNUNET_CONTAINER_multihashmap_contains(pg->peers[second].blacklisted_peers, &hash_first))
570 add_second = GNUNET_YES;
576 GNUNET_assert(GNUNET_OK == GNUNET_CONTAINER_multihashmap_put(pg->peers[first].blacklisted_peers, &hash_second, pg->peers[second].daemon, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY));
577 pg->peers[first].num_connections++;
583 GNUNET_assert(GNUNET_OK == GNUNET_CONTAINER_multihashmap_put(pg->peers[second].blacklisted_peers, &hash_first, pg->peers[first].daemon, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY));
584 pg->peers[second].num_connections++;
592 * Remove entries from the peers blacklisted list
594 * @param pg the peer group we are working with
595 * @param first index of the first peer
596 * @param second index of the second peer
598 * @return the number of connections removed (can be 0, 1 or 2)
602 unblacklist_connections(struct GNUNET_TESTING_PeerGroup *pg, unsigned int first, unsigned int second)
607 GNUNET_HashCode hash_first;
608 GNUNET_HashCode hash_second;
610 hash_from_uid(first, &hash_first);
611 hash_from_uid(second, &hash_second);
613 remove_first = GNUNET_CONTAINER_multihashmap_contains(pg->peers[first].blacklisted_peers, &hash_second);
614 remove_second = GNUNET_CONTAINER_multihashmap_contains(pg->peers[second].blacklisted_peers, &hash_first);
619 GNUNET_assert(GNUNET_YES == GNUNET_CONTAINER_multihashmap_remove(pg->peers[first].blacklisted_peers, &hash_second, pg->peers[second].daemon));
625 GNUNET_assert(GNUNET_YES == GNUNET_CONTAINER_multihashmap_remove(pg->peers[second].blacklisted_peers, &hash_first, pg->peers[first].daemon));
633 * Scale free network construction as described in:
635 * "Emergence of Scaling in Random Networks." Science 286, 509-512, 1999.
637 * Start with a network of "one" peer, then progressively add
638 * peers up to the total number. At each step, iterate over
639 * all possible peers and connect new peer based on number of
640 * existing connections of the target peer.
642 * @param pg the peer group we are dealing with
644 * @return the number of connections created
647 create_scale_free (struct GNUNET_TESTING_PeerGroup *pg, GNUNET_TESTING_ConnectionProcessor proc)
650 unsigned int total_connections;
651 unsigned int outer_count;
653 unsigned int previous_total_connections;
657 GNUNET_assert(pg->total > 1);
659 /* Add a connection between the first two nodes */
660 total_connections = proc(pg, 0, 1);
662 for (outer_count = 1; outer_count < pg->total; outer_count++)
664 previous_total_connections = total_connections;
665 for (i = 0; i < outer_count; i++)
667 probability = pg->peers[i].num_connections / (double)previous_total_connections;
668 random = ((double) GNUNET_CRYPTO_random_u64(GNUNET_CRYPTO_QUALITY_WEAK,
669 (uint64_t)-1LL)) / ( (double) (uint64_t) -1LL);
671 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
672 "Considering connecting peer %d to peer %d\n",
675 if (random < probability)
678 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
679 "Connecting peer %d to peer %d\n",
682 total_connections += proc(pg, outer_count, i);
687 return total_connections;
691 create_small_world_ring(struct GNUNET_TESTING_PeerGroup *pg, GNUNET_TESTING_ConnectionProcessor proc)
696 unsigned int randomPeer;
697 double random, logNModifier, percentage;
698 unsigned int smallWorldConnections;
704 int connect_attempts;
706 logNModifier = 0.5; /* FIXME: default value? */
707 if (GNUNET_OK == GNUNET_CONFIGURATION_get_value_string(pg->cfg,
712 if (sscanf(p_string, "%lf", &logNModifier) != 1)
713 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
714 _("Invalid value `%s' for option `%s' in section `%s': expected float\n"),
718 GNUNET_free (p_string);
720 percentage = 0.5; /* FIXME: default percentage? */
721 if (GNUNET_OK == GNUNET_CONFIGURATION_get_value_string(pg->cfg,
726 if (sscanf(p_string, "%lf", &percentage) != 1)
727 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
728 _("Invalid value `%s' for option `%s' in section `%s': expected float\n"),
732 GNUNET_free (p_string);
734 natLog = log (pg->total);
735 connsPerPeer = ceil (natLog * logNModifier);
737 if (connsPerPeer % 2 == 1)
740 smallWorldConnections = 0;
741 connect_attempts = 0;
742 for (i = 0; i < pg->total; i++)
745 max = i + connsPerPeer / 2;
746 min = i - connsPerPeer / 2;
748 if (max > pg->total - 1)
750 max = max - pg->total;
756 min = pg->total - 1 + min;
760 for (j = 0; j < connsPerPeer / 2; j++)
762 random = ((double) GNUNET_CRYPTO_random_u64(GNUNET_CRYPTO_QUALITY_WEAK,
763 (uint64_t)-1LL)) / ( (double) (uint64_t) -1LL);
764 if (random < percentage)
766 /* Connect to uniformly selected random peer */
768 GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK,
770 while ((((randomPeer < max) && (randomPeer > min))
771 && (useAnd == 0)) || (((randomPeer > min)
772 || (randomPeer < max))
776 GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK,
779 smallWorldConnections +=
780 proc (pg, i, randomPeer);
784 nodeToConnect = i + j + 1;
785 if (nodeToConnect > pg->total - 1)
787 nodeToConnect = nodeToConnect - pg->total;
790 proc (pg, i, nodeToConnect);
796 connect_attempts += smallWorldConnections;
798 return connect_attempts;
803 create_nated_internet (struct GNUNET_TESTING_PeerGroup *pg, GNUNET_TESTING_ConnectionProcessor proc)
805 unsigned int outer_count, inner_count;
807 int connect_attempts;
808 double nat_percentage;
811 nat_percentage = 0.6; /* FIXME: default percentage? */
812 if (GNUNET_OK == GNUNET_CONFIGURATION_get_value_string(pg->cfg,
817 if (sscanf(p_string, "%lf", &nat_percentage) != 1)
818 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
819 _("Invalid value `%s' for option `%s' in section `%s': expected float\n"),
823 GNUNET_free (p_string);
828 cutoff = (unsigned int) (nat_percentage * pg->total);
830 connect_attempts = 0;
832 for (outer_count = 0; outer_count < pg->total - 1; outer_count++)
834 for (inner_count = outer_count + 1; inner_count < pg->total;
837 if ((outer_count > cutoff) || (inner_count > cutoff))
840 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
841 "Connecting peer %d to peer %d\n",
842 outer_count, inner_count);
844 connect_attempts += proc(pg, outer_count, inner_count);
849 return connect_attempts;
856 create_small_world (struct GNUNET_TESTING_PeerGroup *pg, GNUNET_TESTING_ConnectionProcessor proc)
858 unsigned int i, j, k;
862 unsigned int toggle = 1;
863 unsigned int nodeToConnect;
865 unsigned int node1Row;
866 unsigned int node1Col;
867 unsigned int node2Row;
868 unsigned int node2Col;
869 unsigned int distance;
870 double probability, random, percentage;
871 unsigned int smallWorldConnections;
873 int connect_attempts;
874 square = floor (sqrt (pg->total));
878 percentage = 0.5; /* FIXME: default percentage? */
879 if (GNUNET_OK == GNUNET_CONFIGURATION_get_value_string(pg->cfg,
884 if (sscanf(p_string, "%lf", &percentage) != 1)
885 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
886 _("Invalid value `%s' for option `%s' in section `%s': expected float\n"),
890 GNUNET_free (p_string);
892 probability = 0.5; /* FIXME: default percentage? */
893 if (GNUNET_OK == GNUNET_CONFIGURATION_get_value_string(pg->cfg,
898 if (sscanf(p_string, "%lf", &probability) != 1)
899 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
900 _("Invalid value `%s' for option `%s' in section `%s': expected float\n"),
904 GNUNET_free (p_string);
906 if (square * square != pg->total)
908 while (rows * cols < pg->total)
919 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
920 _("Connecting nodes in 2d torus topology: %u rows %u columns\n"),
924 connect_attempts = 0;
925 /* Rows and columns are all sorted out, now iterate over all nodes and connect each
926 * to the node to its right and above. Once this is over, we'll have our torus!
927 * Special case for the last node (if the rows and columns are not equal), connect
928 * to the first in the row to maintain topology.
930 for (i = 0; i < pg->total; i++)
932 /* First connect to the node to the right */
933 if (((i + 1) % cols != 0) && (i + 1 != pg->total))
934 nodeToConnect = i + 1;
935 else if (i + 1 == pg->total)
936 nodeToConnect = rows * cols - cols;
938 nodeToConnect = i - cols + 1;
940 connect_attempts += proc (pg, i, nodeToConnect);
943 nodeToConnect = (rows * cols) - cols + i;
945 nodeToConnect = i - cols;
947 if (nodeToConnect < pg->total)
948 connect_attempts += proc (pg, i, nodeToConnect);
950 natLog = log (pg->total);
951 #if VERBOSE_TESTING > 2
952 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
953 _("natural log of %d is %d, will run %d iterations\n"),
954 pg->total, natLog, (int) (natLog * percentage));
955 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, _("Total connections added thus far: %u!\n"), connect_attempts);
957 smallWorldConnections = 0;
958 for (i = 0; i < (int) (natLog * percentage); i++)
960 for (j = 0; j < pg->total; j++)
962 /* Determine the row and column of node at position j on the 2d torus */
964 node1Col = j - (node1Row * cols);
965 for (k = 0; k < pg->total; k++)
967 /* Determine the row and column of node at position k on the 2d torus */
969 node2Col = k - (node2Row * cols);
970 /* Simple Cartesian distance */
971 distance = abs (node1Row - node2Row) + abs (node1Col - node2Col);
974 /* Calculate probability as 1 over the square of the distance */
975 probability = 1.0 / (distance * distance);
976 /* Choose a random value between 0 and 1 */
977 random = ((double) GNUNET_CRYPTO_random_u64(GNUNET_CRYPTO_QUALITY_WEAK,
978 (uint64_t)-1LL)) / ( (double) (uint64_t) -1LL);
979 /* If random < probability, then connect the two nodes */
980 if (random < probability)
981 smallWorldConnections += proc (pg, j, k);
987 connect_attempts += smallWorldConnections;
988 #if VERBOSE_TESTING > 2
989 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
990 _("Total connections added for small world: %d!\n"),
991 smallWorldConnections);
993 return connect_attempts;
999 create_erdos_renyi (struct GNUNET_TESTING_PeerGroup *pg, GNUNET_TESTING_ConnectionProcessor proc)
1002 unsigned int outer_count;
1003 unsigned int inner_count;
1004 int connect_attempts;
1008 probability = 0.5; /* FIXME: default percentage? */
1009 if (GNUNET_OK == GNUNET_CONFIGURATION_get_value_string(pg->cfg,
1014 if (sscanf(p_string, "%lf", &probability) != 1)
1015 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
1016 _("Invalid value `%s' for option `%s' in section `%s': expected float\n"),
1020 GNUNET_free (p_string);
1022 connect_attempts = 0;
1023 for (outer_count = 0; outer_count < pg->total - 1; outer_count++)
1025 for (inner_count = outer_count + 1; inner_count < pg->total;
1028 temp_rand = ((double) GNUNET_CRYPTO_random_u64(GNUNET_CRYPTO_QUALITY_WEAK,
1029 (uint64_t)-1LL)) / ( (double) (uint64_t) -1LL);
1031 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1032 _("rand is %f probability is %f\n"), temp_rand,
1035 if (temp_rand < probability)
1037 connect_attempts += proc (pg, outer_count, inner_count);
1042 return connect_attempts;
1046 create_2d_torus (struct GNUNET_TESTING_PeerGroup *pg, GNUNET_TESTING_ConnectionProcessor proc)
1049 unsigned int square;
1052 unsigned int toggle = 1;
1053 unsigned int nodeToConnect;
1054 int connect_attempts;
1056 connect_attempts = 0;
1058 square = floor (sqrt (pg->total));
1062 if (square * square != pg->total)
1064 while (rows * cols < pg->total)
1066 if (toggle % 2 == 0)
1075 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1076 _("Connecting nodes in 2d torus topology: %u rows %u columns\n"),
1079 /* Rows and columns are all sorted out, now iterate over all nodes and connect each
1080 * to the node to its right and above. Once this is over, we'll have our torus!
1081 * Special case for the last node (if the rows and columns are not equal), connect
1082 * to the first in the row to maintain topology.
1084 for (i = 0; i < pg->total; i++)
1086 /* First connect to the node to the right */
1087 if (((i + 1) % cols != 0) && (i + 1 != pg->total))
1088 nodeToConnect = i + 1;
1089 else if (i + 1 == pg->total)
1090 nodeToConnect = rows * cols - cols;
1092 nodeToConnect = i - cols + 1;
1094 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1095 "Connecting peer %d to peer %d\n",
1098 connect_attempts += proc(pg, i, nodeToConnect);
1100 /* Second connect to the node immediately above */
1102 nodeToConnect = (rows * cols) - cols + i;
1104 nodeToConnect = i - cols;
1106 if (nodeToConnect < pg->total)
1109 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1110 "Connecting peer %d to peer %d\n",
1113 connect_attempts += proc(pg, i, nodeToConnect);
1118 return connect_attempts;
1124 create_clique (struct GNUNET_TESTING_PeerGroup *pg, GNUNET_TESTING_ConnectionProcessor proc)
1126 unsigned int outer_count;
1127 unsigned int inner_count;
1128 int connect_attempts;
1130 connect_attempts = 0;
1132 for (outer_count = 0; outer_count < pg->total - 1; outer_count++)
1134 for (inner_count = outer_count + 1; inner_count < pg->total;
1138 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1139 "Connecting peer %d to peer %d\n",
1140 outer_count, inner_count);
1142 connect_attempts += proc(pg, outer_count, inner_count);
1146 return connect_attempts;
1151 create_ring (struct GNUNET_TESTING_PeerGroup *pg, GNUNET_TESTING_ConnectionProcessor proc)
1154 int connect_attempts;
1156 connect_attempts = 0;
1158 /* Connect each peer to the next highest numbered peer */
1159 for (count = 0; count < pg->total - 1; count++)
1162 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1163 "Connecting peer %d to peer %d\n",
1166 connect_attempts += proc(pg, count, count + 1);
1169 /* Connect the last peer to the first peer */
1170 connect_attempts += proc(pg, pg->total - 1, 0);
1172 return connect_attempts;
1177 * Iterator for writing friends of a peer to a file.
1179 * @param cls closure, an open writable file handle
1180 * @param key the key the daemon was stored under
1181 * @param value the GNUNET_TESTING_Daemon that needs to be written.
1183 * @return GNUNET_YES to continue iteration
1185 * TODO: Could replace friend_file_iterator and blacklist_file_iterator
1186 * with a single file_iterator that takes a closure which contains
1187 * the prefix to write before the peer. Then this could be used
1188 * for blacklisting multiple transports and writing the friend
1189 * file. I'm sure *someone* will complain loudly about other
1190 * things that negate these functions even existing so no point in
1194 friend_file_iterator (void *cls,
1195 const GNUNET_HashCode * key,
1198 FILE *temp_friend_handle = cls;
1199 struct GNUNET_TESTING_Daemon *peer = value;
1200 struct GNUNET_PeerIdentity *temppeer;
1201 struct GNUNET_CRYPTO_HashAsciiEncoded peer_enc;
1203 temppeer = &peer->id;
1204 GNUNET_CRYPTO_hash_to_enc(&temppeer->hashPubKey, &peer_enc);
1205 fprintf(temp_friend_handle, "%s\n", (char *)&peer_enc);
1212 * Iterator for writing blacklist data to appropriate files.
1214 * @param cls closure, an open writable file handle
1215 * @param key the key the daemon was stored under
1216 * @param value the GNUNET_TESTING_Daemon that needs to be written.
1218 * @return GNUNET_YES to continue iteration
1221 blacklist_file_iterator (void *cls,
1222 const GNUNET_HashCode * key,
1225 FILE *temp_blacklist_handle = cls;
1226 struct GNUNET_TESTING_Daemon *peer = value;
1227 struct GNUNET_PeerIdentity *temppeer;
1228 struct GNUNET_CRYPTO_HashAsciiEncoded peer_enc;
1230 temppeer = &peer->id;
1231 GNUNET_CRYPTO_hash_to_enc(&temppeer->hashPubKey, &peer_enc);
1232 fprintf(temp_blacklist_handle, "tcp:%s\n", (char *)&peer_enc);
1238 * Create the friend files based on the PeerConnection's
1239 * of each peer in the peer group, and copy the files
1240 * to the appropriate place
1242 * @param pg the peer group we are dealing with
1245 create_and_copy_friend_files (struct GNUNET_TESTING_PeerGroup *pg)
1247 FILE *temp_friend_handle;
1248 unsigned int pg_iter;
1249 char *temp_service_path;
1253 enum GNUNET_OS_ProcessStatusType type;
1254 unsigned long return_code;
1259 pidarr = GNUNET_malloc(sizeof(pid_t) * pg->total);
1260 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
1262 mytemp = GNUNET_DISK_mktemp("friends");
1263 GNUNET_assert(mytemp != NULL);
1264 temp_friend_handle = fopen (mytemp, "wt");
1265 GNUNET_assert(temp_friend_handle != NULL);
1266 GNUNET_CONTAINER_multihashmap_iterate(pg->peers[pg_iter].allowed_peers, &friend_file_iterator, temp_friend_handle);
1267 fclose(temp_friend_handle);
1270 GNUNET_CONFIGURATION_get_value_string(pg->peers[pg_iter].daemon->cfg, "PATHS", "SERVICEHOME", &temp_service_path))
1272 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
1273 _("No `%s' specified in peer configuration in section `%s', cannot copy friends file!\n"),
1276 if (UNLINK (mytemp) != 0)
1277 GNUNET_log_strerror_file (GNUNET_ERROR_TYPE_WARNING, "unlink", mytemp);
1278 GNUNET_free (mytemp);
1282 if (pg->peers[pg_iter].daemon->hostname == NULL) /* Local, just copy the file */
1284 GNUNET_asprintf (&arg, "%s/friends", temp_service_path);
1285 pidarr[pg_iter] = GNUNET_OS_start_process (NULL, NULL, "mv",
1286 "mv", mytemp, arg, NULL);
1288 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1289 _("Copying file with command cp %s %s\n"), mytemp, arg);
1294 else /* Remote, scp the file to the correct place */
1296 if (NULL != pg->peers[pg_iter].daemon->username)
1297 GNUNET_asprintf (&arg, "%s@%s:%s/friends", pg->peers[pg_iter].daemon->username, pg->peers[pg_iter].daemon->hostname, temp_service_path);
1299 GNUNET_asprintf (&arg, "%s:%s/friends", pg->peers[pg_iter].daemon->hostname, temp_service_path);
1300 pidarr[pg_iter] = GNUNET_OS_start_process (NULL, NULL, "scp",
1301 "scp", mytemp, arg, NULL);
1304 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1305 _("Copying file with command scp %s %s\n"), mytemp, arg);
1309 GNUNET_free (temp_service_path);
1310 GNUNET_free (mytemp);
1314 ret = GNUNET_SYSERR;
1315 while ((count < max_wait) && (ret != GNUNET_OK))
1318 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
1321 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1322 _("Checking copy status of file %d\n"), pg_iter);
1324 if (pidarr[pg_iter] != 0) /* Check for already completed! */
1326 if (GNUNET_OS_process_status(pidarr[pg_iter], &type, &return_code) != GNUNET_OK)
1328 ret = GNUNET_SYSERR;
1330 else if ((type != GNUNET_OS_PROCESS_EXITED) || (return_code != 0))
1332 ret = GNUNET_SYSERR;
1336 pidarr[pg_iter] = 0;
1338 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1339 _("File %d copied\n"), pg_iter);
1345 if (ret == GNUNET_SYSERR)
1352 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1353 _("Finished copying all friend files!\n"));
1355 GNUNET_free(pidarr);
1361 * Create the blacklist files based on the PeerConnection's
1362 * of each peer in the peer group, and copy the files
1363 * to the appropriate place.
1365 * @param pg the peer group we are dealing with
1368 create_and_copy_blacklist_files (struct GNUNET_TESTING_PeerGroup *pg)
1370 FILE *temp_friend_handle;
1371 unsigned int pg_iter;
1372 char *temp_service_path;
1376 enum GNUNET_OS_ProcessStatusType type;
1377 unsigned long return_code;
1382 pidarr = GNUNET_malloc(sizeof(pid_t) * pg->total);
1383 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
1385 mytemp = GNUNET_DISK_mktemp("blacklist");
1386 GNUNET_assert(mytemp != NULL);
1387 temp_friend_handle = fopen (mytemp, "wt");
1388 GNUNET_assert(temp_friend_handle != NULL);
1389 GNUNET_CONTAINER_multihashmap_iterate(pg->peers[pg_iter].blacklisted_peers, &blacklist_file_iterator, temp_friend_handle);
1390 fclose(temp_friend_handle);
1393 GNUNET_CONFIGURATION_get_value_string(pg->peers[pg_iter].daemon->cfg, "PATHS", "SERVICEHOME", &temp_service_path))
1395 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
1396 _("No `%s' specified in peer configuration in section `%s', cannot copy friends file!\n"),
1399 if (UNLINK (mytemp) != 0)
1400 GNUNET_log_strerror_file (GNUNET_ERROR_TYPE_WARNING, "unlink", mytemp);
1401 GNUNET_free (mytemp);
1405 if (pg->peers[pg_iter].daemon->hostname == NULL) /* Local, just copy the file */
1407 GNUNET_asprintf (&arg, "%s/blacklist", temp_service_path);
1408 pidarr[pg_iter] = GNUNET_OS_start_process (NULL, NULL, "mv",
1409 "mv", mytemp, arg, NULL);
1411 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1412 _("Copying file with command cp %s %s\n"), mytemp, arg);
1417 else /* Remote, scp the file to the correct place */
1419 if (NULL != pg->peers[pg_iter].daemon->username)
1420 GNUNET_asprintf (&arg, "%s@%s:%s/blacklist", pg->peers[pg_iter].daemon->username, pg->peers[pg_iter].daemon->hostname, temp_service_path);
1422 GNUNET_asprintf (&arg, "%s:%s/blacklist", pg->peers[pg_iter].daemon->hostname, temp_service_path);
1423 pidarr[pg_iter] = GNUNET_OS_start_process (NULL, NULL, "scp",
1424 "scp", mytemp, arg, NULL);
1427 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1428 _("Copying file with command scp %s %s\n"), mytemp, arg);
1432 GNUNET_free (temp_service_path);
1433 GNUNET_free (mytemp);
1437 ret = GNUNET_SYSERR;
1438 while ((count < max_wait) && (ret != GNUNET_OK))
1441 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
1444 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1445 _("Checking copy status of file %d\n"), pg_iter);
1447 if (pidarr[pg_iter] != 0) /* Check for already completed! */
1449 if (GNUNET_OS_process_status(pidarr[pg_iter], &type, &return_code) != GNUNET_OK)
1451 ret = GNUNET_SYSERR;
1453 else if ((type != GNUNET_OS_PROCESS_EXITED) || (return_code != 0))
1455 ret = GNUNET_SYSERR;
1459 pidarr[pg_iter] = 0;
1461 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1462 _("File %d copied\n"), pg_iter);
1468 if (ret == GNUNET_SYSERR)
1475 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1476 _("Finished copying all blacklist files!\n"));
1478 GNUNET_free(pidarr);
1484 * Internal notification of a connection, kept so that we can ensure some connections
1485 * happen instead of flooding all testing daemons with requests to connect.
1487 static void internal_connect_notify (void *cls,
1488 const struct GNUNET_PeerIdentity *first,
1489 const struct GNUNET_PeerIdentity *second,
1490 const struct GNUNET_CONFIGURATION_Handle *first_cfg,
1491 const struct GNUNET_CONFIGURATION_Handle *second_cfg,
1492 struct GNUNET_TESTING_Daemon *first_daemon,
1493 struct GNUNET_TESTING_Daemon *second_daemon,
1496 struct GNUNET_TESTING_PeerGroup *pg = cls;
1497 outstanding_connects--;
1499 pg->notify_connection(pg->notify_connection_cls, first, second, first_cfg, second_cfg, first_daemon, second_daemon, emsg);
1503 static void schedule_connect(void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
1505 struct ConnectContext *connect_context = cls;
1507 if (tc->reason == GNUNET_SCHEDULER_REASON_SHUTDOWN)
1510 if (outstanding_connects > MAX_OUTSTANDING_CONNECTIONS)
1512 #if VERBOSE_TESTING > 2
1513 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1514 _("Delaying connect, we have too many outstanding connections!\n"));
1516 GNUNET_SCHEDULER_add_delayed(connect_context->pg->sched, GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 3), &schedule_connect, connect_context);
1520 #if VERBOSE_TESTING > 2
1521 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1522 _("Creating connection, outstanding_connections is %d\n"), outstanding_connects);
1524 outstanding_connects++;
1525 GNUNET_TESTING_daemons_connect (connect_context->first,
1526 connect_context->second,
1529 &internal_connect_notify,
1530 connect_context->pg);
1531 GNUNET_free(connect_context);
1536 * Iterator for actually scheduling connections to be created
1537 * between two peers.
1539 * @param cls closure, a GNUNET_TESTING_Daemon
1540 * @param key the key the second Daemon was stored under
1541 * @param value the GNUNET_TESTING_Daemon that the first is to connect to
1543 * @return GNUNET_YES to continue iteration
1546 connect_iterator (void *cls,
1547 const GNUNET_HashCode * key,
1550 struct PeerData *first = cls;
1551 struct GNUNET_TESTING_Daemon *second = value;
1552 struct ConnectContext *connect_context;
1554 connect_context = GNUNET_malloc(sizeof(struct ConnectContext));
1555 connect_context->pg = first->pg;
1556 connect_context->first = first->daemon;
1557 connect_context->second = second;
1558 GNUNET_SCHEDULER_add_now(first->pg->sched, &schedule_connect, connect_context);
1564 * Iterator for copying all entries in the allowed hashmap to the
1567 * @param cls closure, a GNUNET_TESTING_Daemon
1568 * @param key the key the second Daemon was stored under
1569 * @param value the GNUNET_TESTING_Daemon that the first is to connect to
1571 * @return GNUNET_YES to continue iteration
1574 copy_topology_iterator (void *cls,
1575 const GNUNET_HashCode * key,
1578 struct PeerData *first = cls;
1580 GNUNET_assert(GNUNET_OK == GNUNET_CONTAINER_multihashmap_put(first->connect_peers, key, value, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY));
1586 * Make the peers to connect the same as those that are allowed to be
1589 * @param pg the peer group
1592 copy_allowed_topology (struct GNUNET_TESTING_PeerGroup *pg)
1594 unsigned int pg_iter;
1599 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
1601 ret = GNUNET_CONTAINER_multihashmap_iterate(pg->peers[pg_iter].allowed_peers, ©_topology_iterator, &pg->peers[pg_iter]);
1602 if (GNUNET_SYSERR == ret)
1603 return GNUNET_SYSERR;
1605 total = total + ret;
1613 * Connect the topology as specified by the PeerConnection's
1614 * of each peer in the peer group
1616 * @param pg the peer group we are dealing with
1618 * @return the number of connections that will be attempted
1621 connect_topology (struct GNUNET_TESTING_PeerGroup *pg)
1623 unsigned int pg_iter;
1627 struct PeerConnection *connection_iter;
1628 struct ConnectContext *connect_context;
1632 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
1634 ret = GNUNET_CONTAINER_multihashmap_iterate(pg->peers[pg_iter].connect_peers, &connect_iterator, &pg->peers[pg_iter]);
1635 if (GNUNET_SYSERR == ret)
1636 return GNUNET_SYSERR;
1638 total = total + ret;
1642 while (connection_iter != NULL)
1644 connect_context = GNUNET_malloc(sizeof(struct ConnectContext));
1645 connect_context->pg = pg;
1646 connect_context->first = ;
1647 connect_context->second = connection_iter->daemon;
1648 GNUNET_SCHEDULER_add_now(pg->sched, &schedule_connect, connect_context);
1649 connection_iter = connection_iter->next;
1658 * Takes a peer group and creates a topology based on the
1659 * one specified. Creates a topology means generates friend
1660 * files for the peers so they can only connect to those allowed
1661 * by the topology. This will only have an effect once peers
1662 * are started if the FRIENDS_ONLY option is set in the base
1663 * config. Also takes an optional restrict topology which
1664 * disallows direct TCP connections UNLESS they are specified in
1665 * the restricted topology.
1667 * @param pg the peer group struct representing the running peers
1668 * @param topology which topology to connect the peers in
1669 * @param restrict_topology allow only direct TCP connections in this topology
1670 * use GNUNET_TESTING_TOPOLOGY_NONE for no restrictions
1672 * @return the maximum number of connections were all allowed peers
1673 * connected to each other
1676 GNUNET_TESTING_create_topology (struct GNUNET_TESTING_PeerGroup *pg,
1677 enum GNUNET_TESTING_Topology topology,
1678 enum GNUNET_TESTING_Topology restrict_topology)
1681 int num_connections;
1682 int unblacklisted_connections;
1684 GNUNET_assert (pg->notify_connection != NULL);
1689 case GNUNET_TESTING_TOPOLOGY_CLIQUE:
1691 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1692 _("Creating clique topology\n"));
1694 num_connections = create_clique (pg, &add_allowed_connections);
1696 case GNUNET_TESTING_TOPOLOGY_SMALL_WORLD_RING:
1698 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1699 _("Creating small world (ring) topology\n"));
1701 num_connections = create_small_world_ring (pg, &add_allowed_connections);
1703 case GNUNET_TESTING_TOPOLOGY_SMALL_WORLD:
1705 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1706 _("Creating small world (2d-torus) topology\n"));
1708 num_connections = create_small_world (pg, &add_allowed_connections);
1710 case GNUNET_TESTING_TOPOLOGY_RING:
1712 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1713 _("Creating ring topology\n"));
1715 num_connections = create_ring (pg, &add_allowed_connections);
1717 case GNUNET_TESTING_TOPOLOGY_2D_TORUS:
1719 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1720 _("Creating 2d torus topology\n"));
1722 num_connections = create_2d_torus (pg, &add_allowed_connections);
1724 case GNUNET_TESTING_TOPOLOGY_ERDOS_RENYI:
1726 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1727 _("Creating Erdos-Renyi topology\n"));
1729 num_connections = create_erdos_renyi (pg, &add_allowed_connections);
1731 case GNUNET_TESTING_TOPOLOGY_INTERNAT:
1733 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1734 _("Creating InterNAT topology\n"));
1736 num_connections = create_nated_internet (pg, &add_allowed_connections);
1738 case GNUNET_TESTING_TOPOLOGY_SCALE_FREE:
1740 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1741 _("Creating Scale Free topology\n"));
1743 num_connections = create_scale_free (pg, &add_allowed_connections);
1745 case GNUNET_TESTING_TOPOLOGY_NONE:
1746 num_connections = 0;
1749 num_connections = 0;
1752 if (num_connections < 1)
1753 return GNUNET_SYSERR;
1755 if (GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno (pg->cfg, "TESTING", "F2F"))
1757 ret = create_and_copy_friend_files(pg);
1760 if (ret != GNUNET_OK)
1763 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1764 _("Failed during friend file copying!\n"));
1766 return GNUNET_SYSERR;
1771 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1772 _("Friend files created/copied successfully!\n"));
1777 * Use the create clique method to initially set all connections
1780 create_clique (pg, &blacklist_connections);
1781 unblacklisted_connections = 0;
1783 * Un-blacklist connections as per the topology specified
1785 switch (restrict_topology)
1787 case GNUNET_TESTING_TOPOLOGY_CLIQUE:
1789 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1790 _("Blacklisting all but clique topology\n"));
1792 unblacklisted_connections = create_clique (pg, &unblacklist_connections);
1794 case GNUNET_TESTING_TOPOLOGY_SMALL_WORLD_RING:
1796 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1797 _("Blacklisting all but small world (ring) topology\n"));
1799 unblacklisted_connections = create_small_world_ring (pg, &unblacklist_connections);
1801 case GNUNET_TESTING_TOPOLOGY_SMALL_WORLD:
1803 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1804 _("Blacklisting all but small world (2d-torus) topology\n"));
1806 unblacklisted_connections = create_small_world (pg, &unblacklist_connections);
1808 case GNUNET_TESTING_TOPOLOGY_RING:
1810 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1811 _("Blacklisting all but ring topology\n"));
1813 unblacklisted_connections = create_ring (pg, &unblacklist_connections);
1815 case GNUNET_TESTING_TOPOLOGY_2D_TORUS:
1817 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1818 _("Blacklisting all but 2d torus topology\n"));
1820 unblacklisted_connections = create_2d_torus (pg, &unblacklist_connections);
1822 case GNUNET_TESTING_TOPOLOGY_ERDOS_RENYI:
1824 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1825 _("Blacklisting all but Erdos-Renyi topology\n"));
1827 unblacklisted_connections = create_erdos_renyi (pg, &unblacklist_connections);
1829 case GNUNET_TESTING_TOPOLOGY_INTERNAT:
1831 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1832 _("Blacklisting all but InterNAT topology\n"));
1834 unblacklisted_connections = create_nated_internet (pg, &unblacklist_connections);
1836 case GNUNET_TESTING_TOPOLOGY_SCALE_FREE:
1838 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1839 _("Blacklisting all but Scale Free topology\n"));
1841 unblacklisted_connections = create_scale_free (pg, &unblacklist_connections);
1843 case GNUNET_TESTING_TOPOLOGY_NONE:
1849 if (unblacklisted_connections > 0)
1851 ret = create_and_copy_blacklist_files(pg);
1852 if (ret != GNUNET_OK)
1855 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1856 _("Failed during blacklist file copying!\n"));
1858 return GNUNET_SYSERR;
1863 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1864 _("Blacklist files created/copied successfully!\n"));
1870 return num_connections;
1873 struct RandomContext
1878 struct GNUNET_TESTING_PeerGroup *pg;
1881 * uid of the first peer
1886 * Peer data for first peer.
1888 struct PeerData *first;
1891 * Random percentage to use
1896 struct MinimumContext
1901 struct GNUNET_TESTING_PeerGroup *pg;
1904 * uid of the first peer
1909 * Peer data for first peer.
1911 struct PeerData *first;
1914 * Number of conns per peer
1916 unsigned int num_to_add;
1919 * Permuted array of all possible connections. Only add the Nth
1920 * peer if it's in the Nth position.
1922 unsigned int *pg_array;
1925 * What number is the current element we are iterating over?
1927 unsigned int current;
1935 struct GNUNET_TESTING_PeerGroup *pg;
1938 * uid of the first peer
1943 * uid of the second peer
1945 uint32_t second_uid;
1948 * Peer data for first peer.
1950 struct PeerData *first;
1953 * Which peer has been chosen as the one to add?
1955 unsigned int chosen;
1958 * What number is the current element we are iterating over?
1960 unsigned int current;
1964 * Iterator for choosing random peers to connect.
1966 * @param cls closure, a RandomContext
1967 * @param key the key the second Daemon was stored under
1968 * @param value the GNUNET_TESTING_Daemon that the first is to connect to
1970 * @return GNUNET_YES to continue iteration
1973 random_connect_iterator (void *cls,
1974 const GNUNET_HashCode * key,
1977 struct RandomContext *random_ctx = cls;
1978 double random_number;
1979 uint32_t second_pos;
1980 GNUNET_HashCode first_hash;
1981 random_number = ((double) GNUNET_CRYPTO_random_u64(GNUNET_CRYPTO_QUALITY_WEAK,
1982 (uint64_t)-1LL)) / ( (double) (uint64_t) -1LL);
1983 if (random_number < random_ctx->percentage)
1985 GNUNET_assert(GNUNET_OK == GNUNET_CONTAINER_multihashmap_put(random_ctx->first->connect_peers_working_set, key, value, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY));
1987 /* Now we have considered this particular connection, remove it from the second peer so it's not double counted */
1988 uid_from_hash(key, &second_pos);
1989 hash_from_uid(random_ctx->first_uid, &first_hash);
1990 GNUNET_assert(random_ctx->pg->total > second_pos);
1991 GNUNET_assert(GNUNET_YES == GNUNET_CONTAINER_multihashmap_remove(random_ctx->pg->peers[second_pos].connect_peers, &first_hash, random_ctx->first->daemon));
1997 * Iterator for adding at least X peers to a peers connection set.
1999 * @param cls closure, MinimumContext
2000 * @param key the key the second Daemon was stored under
2001 * @param value the GNUNET_TESTING_Daemon that the first is to connect to
2003 * @return GNUNET_YES to continue iteration
2006 minimum_connect_iterator (void *cls,
2007 const GNUNET_HashCode * key,
2010 struct MinimumContext *min_ctx = cls;
2011 uint32_t second_pos;
2012 GNUNET_HashCode first_hash;
2015 if (GNUNET_CONTAINER_multihashmap_size(min_ctx->first->connect_peers_working_set) < min_ctx->num_to_add)
2017 for (i = 0; i < min_ctx->num_to_add; i++)
2019 if (min_ctx->pg_array[i] == min_ctx->current)
2021 GNUNET_assert(GNUNET_OK == GNUNET_CONTAINER_multihashmap_put(min_ctx->first->connect_peers_working_set, key, value, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY));
2022 uid_from_hash(key, &second_pos);
2023 hash_from_uid(min_ctx->first_uid, &first_hash);
2024 GNUNET_assert(min_ctx->pg->total > second_pos);
2025 GNUNET_assert(GNUNET_OK == GNUNET_CONTAINER_multihashmap_put(min_ctx->pg->peers[second_pos].connect_peers_working_set, &first_hash, min_ctx->first->daemon, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY));
2026 /* Now we have added this particular connection, remove it from the second peer's map so it's not double counted */
2027 GNUNET_assert(GNUNET_YES == GNUNET_CONTAINER_multihashmap_remove(min_ctx->pg->peers[second_pos].connect_peers, &first_hash, min_ctx->first->daemon));
2034 return GNUNET_NO; /* We can stop iterating, we have enough peers! */
2040 * Iterator for adding peers to a connection set based on a depth first search.
2042 * @param cls closure, MinimumContext
2043 * @param key the key the second daemon was stored under
2044 * @param value the GNUNET_TESTING_Daemon that the first is to connect to
2046 * @return GNUNET_YES to continue iteration
2049 dfs_connect_iterator (void *cls,
2050 const GNUNET_HashCode * key,
2053 struct DFSContext *dfs_ctx = cls;
2054 GNUNET_HashCode first_hash;
2056 if (dfs_ctx->current == dfs_ctx->chosen)
2058 GNUNET_assert(GNUNET_OK == GNUNET_CONTAINER_multihashmap_put(dfs_ctx->first->connect_peers_working_set, key, value, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY));
2059 uid_from_hash(key, &dfs_ctx->second_uid);
2060 hash_from_uid(dfs_ctx->first_uid, &first_hash);
2061 GNUNET_assert(GNUNET_OK == GNUNET_CONTAINER_multihashmap_put(dfs_ctx->pg->peers[dfs_ctx->second_uid].connect_peers_working_set, &first_hash, dfs_ctx->first->daemon, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY));
2062 GNUNET_assert(GNUNET_YES == GNUNET_CONTAINER_multihashmap_remove(dfs_ctx->pg->peers[dfs_ctx->second_uid].connect_peers, &first_hash, dfs_ctx->first->daemon));
2063 /* Can't remove second from first yet because we are currently iterating, hence the return value in the DFSContext! */
2064 return GNUNET_NO; /* We have found our peer, don't iterate more */
2073 * From the set of connections possible, choose percentage percent of connections
2074 * to actually connect.
2076 * @param pg the peergroup we are dealing with
2077 * @param percentage what percent of total connections to make
2080 choose_random_connections(struct GNUNET_TESTING_PeerGroup *pg, double percentage)
2082 struct RandomContext random_ctx;
2085 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
2087 random_ctx.first_uid = pg_iter;
2088 random_ctx.first = &pg->peers[pg_iter];
2089 random_ctx.percentage = percentage;
2091 pg->peers[pg_iter].connect_peers_working_set = GNUNET_CONTAINER_multihashmap_create(pg->total);
2092 GNUNET_CONTAINER_multihashmap_iterate(pg->peers[pg_iter].connect_peers, &random_connect_iterator, &random_ctx);
2093 /* Now remove the old connections */
2094 GNUNET_CONTAINER_multihashmap_destroy(pg->peers[pg_iter].connect_peers);
2095 /* And replace with the random set */
2096 pg->peers[pg_iter].connect_peers = pg->peers[pg_iter].connect_peers_working_set;
2101 * From the set of connections possible, choose at least num connections per
2104 * @param pg the peergroup we are dealing with
2105 * @param num how many connections at least should each peer have (if possible)?
2108 choose_minimum(struct GNUNET_TESTING_PeerGroup *pg, unsigned int num)
2110 struct MinimumContext minimum_ctx;
2113 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
2115 pg->peers[pg_iter].connect_peers_working_set = GNUNET_CONTAINER_multihashmap_create(num);
2118 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
2120 minimum_ctx.first_uid = pg_iter;
2121 minimum_ctx.pg_array = GNUNET_CRYPTO_random_permute(GNUNET_CRYPTO_QUALITY_WEAK, GNUNET_CONTAINER_multihashmap_size(pg->peers[pg_iter].connect_peers));
2122 minimum_ctx.first = &pg->peers[pg_iter];
2123 minimum_ctx.pg = pg;
2124 minimum_ctx.num_to_add = num;
2125 minimum_ctx.current = 0;
2126 pg->peers[pg_iter].connect_peers_working_set = GNUNET_CONTAINER_multihashmap_create(pg->total);
2127 GNUNET_CONTAINER_multihashmap_iterate(pg->peers[pg_iter].connect_peers, &minimum_connect_iterator, &minimum_ctx);
2130 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
2132 /* Remove the "old" connections */
2133 GNUNET_CONTAINER_multihashmap_destroy(pg->peers[pg_iter].connect_peers);
2134 /* And replace with the working set */
2135 pg->peers[pg_iter].connect_peers = pg->peers[pg_iter].connect_peers_working_set;
2136 fprintf(stderr, "Finished! Hashmap size %u\n", GNUNET_CONTAINER_multihashmap_size(pg->peers[pg_iter].connect_peers));
2142 static unsigned int count_workingset_connections(struct GNUNET_TESTING_PeerGroup *pg)
2145 unsigned int pg_iter;
2149 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
2151 count += GNUNET_CONTAINER_multihashmap_size(pg->peers[pg_iter].connect_peers_working_set);
2158 static unsigned int count_allowed_connections(struct GNUNET_TESTING_PeerGroup *pg)
2161 unsigned int pg_iter;
2165 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
2167 count += GNUNET_CONTAINER_multihashmap_size(pg->peers[pg_iter].connect_peers);
2174 * From the set of connections possible, choose at least num connections per
2175 * peer based on depth first traversal of peer connections. If DFS leaves
2176 * peers unconnected, ensure those peers get connections.
2178 * @param pg the peergroup we are dealing with
2179 * @param num how many connections at least should each peer have (if possible)?
2182 perform_dfs (struct GNUNET_TESTING_PeerGroup *pg, unsigned int num)
2184 struct DFSContext dfs_ctx;
2187 uint32_t starting_peer;
2188 uint32_t least_connections;
2189 GNUNET_HashCode second_hash;
2191 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
2193 pg->peers[pg_iter].connect_peers_working_set = GNUNET_CONTAINER_multihashmap_create(num);
2198 while ((count_workingset_connections(pg) < num * pg->total) && (count_allowed_connections(pg) > 0))
2200 if (dfs_count % pg->total == 0) /* Restart the DFS at some weakly connected peer */
2202 least_connections = -1; /* Set to very high number */
2203 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
2205 if (GNUNET_CONTAINER_multihashmap_size(pg->peers[pg_iter].connect_peers_working_set) < least_connections)
2207 starting_peer = pg_iter;
2208 least_connections = GNUNET_CONTAINER_multihashmap_size(pg->peers[pg_iter].connect_peers_working_set);
2213 if (GNUNET_CONTAINER_multihashmap_size(pg->peers[starting_peer].connect_peers) == 0) /* Ensure there is at least one peer left to connect! */
2219 /* Choose a random peer from the chosen peers set of connections to add */
2220 dfs_ctx.chosen = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, GNUNET_CONTAINER_multihashmap_size(pg->peers[starting_peer].connect_peers));
2221 dfs_ctx.first_uid = starting_peer;
2222 dfs_ctx.first = &pg->peers[starting_peer];
2224 dfs_ctx.current = 0;
2226 GNUNET_CONTAINER_multihashmap_iterate(pg->peers[starting_peer].connect_peers, &dfs_connect_iterator, &dfs_ctx);
2227 /* Remove the second from the first, since we will be continuing the search and may encounter the first peer again! */
2228 hash_from_uid(dfs_ctx.second_uid, &second_hash);
2229 GNUNET_assert(GNUNET_YES == GNUNET_CONTAINER_multihashmap_remove(pg->peers[starting_peer].connect_peers, &second_hash, pg->peers[dfs_ctx.second_uid].daemon));
2230 starting_peer = dfs_ctx.second_uid;
2233 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
2238 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
2240 /* Remove the "old" connections */
2241 GNUNET_CONTAINER_multihashmap_destroy(pg->peers[pg_iter].connect_peers);
2242 /* And replace with the working set */
2243 pg->peers[pg_iter].connect_peers = pg->peers[pg_iter].connect_peers_working_set;
2244 fprintf(stderr, "Finished! Hashmap size %u\n", GNUNET_CONTAINER_multihashmap_size(pg->peers[pg_iter].connect_peers));
2250 * @param pg the peer group struct representing the running peers
2251 * @param topology which topology to connect the peers in
2252 * @param options options for connecting the topology
2253 * @param option_modifier modifier for options that take a parameter
2255 * There are many ways to connect peers that are supported by this function.
2256 * To connect peers in the same topology that was created via the
2257 * GNUNET_TESTING_create_topology, the topology variable must be set to
2258 * GNUNET_TESTING_TOPOLOGY_NONE. If the topology variable is specified,
2259 * a new instance of that topology will be generated and attempted to be
2260 * connected. This could result in some connections being impossible,
2261 * because some topologies are non-deterministic.
2265 GNUNET_TESTING_connect_topology (struct GNUNET_TESTING_PeerGroup *pg,
2266 enum GNUNET_TESTING_Topology topology,
2267 enum GNUNET_TESTING_TopologyOption options,
2268 double option_modifier)
2270 int num_connections;
2274 case GNUNET_TESTING_TOPOLOGY_CLIQUE:
2276 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2277 _("Creating clique topology\n"));
2279 num_connections = create_clique (pg, &add_actual_connections);
2281 case GNUNET_TESTING_TOPOLOGY_SMALL_WORLD_RING:
2283 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2284 _("Creating small world (ring) topology\n"));
2286 num_connections = create_small_world_ring (pg, &add_actual_connections);
2288 case GNUNET_TESTING_TOPOLOGY_SMALL_WORLD:
2290 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2291 _("Creating small world (2d-torus) topology\n"));
2293 num_connections = create_small_world (pg, &add_actual_connections);
2295 case GNUNET_TESTING_TOPOLOGY_RING:
2297 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2298 _("Creating ring topology\n"));
2300 num_connections = create_ring (pg, &add_actual_connections);
2302 case GNUNET_TESTING_TOPOLOGY_2D_TORUS:
2304 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2305 _("Creating 2d torus topology\n"));
2307 num_connections = create_2d_torus (pg, &add_actual_connections);
2309 case GNUNET_TESTING_TOPOLOGY_ERDOS_RENYI:
2311 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2312 _("Creating Erdos-Renyi topology\n"));
2314 num_connections = create_erdos_renyi (pg, &add_actual_connections);
2316 case GNUNET_TESTING_TOPOLOGY_INTERNAT:
2318 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2319 _("Creating InterNAT topology\n"));
2321 num_connections = create_nated_internet (pg, &add_actual_connections);
2323 case GNUNET_TESTING_TOPOLOGY_SCALE_FREE:
2325 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2326 _("Creating Scale Free topology\n"));
2328 num_connections = create_scale_free (pg, &add_actual_connections);
2330 case GNUNET_TESTING_TOPOLOGY_NONE:
2331 num_connections = copy_allowed_topology(pg);
2334 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Unknown topology specification, can't connect peers!\n");
2335 return GNUNET_SYSERR;
2340 case GNUNET_TESTING_TOPOLOGY_OPTION_RANDOM: /* Create a random subset of total connections based on parameter */
2341 choose_random_connections(pg, option_modifier);
2343 case GNUNET_TESTING_TOPOLOGY_OPTION_MINIMUM: /* Create at least X connections per peer (if possible!) */
2344 choose_minimum(pg, (unsigned int)option_modifier);
2346 case GNUNET_TESTING_TOPOLOGY_OPTION_DFS: /* Choose a random starting point, randomly walk graph, try to get each peer X connections */
2347 perform_dfs(pg, (int)option_modifier);
2349 case GNUNET_TESTING_TOPOLOGY_OPTION_NONE:
2351 case GNUNET_TESTING_TOPOLOGY_OPTION_ALL:
2357 return connect_topology(pg);
2361 * Function which continues a peer group starting up
2362 * after successfully generating hostkeys for each peer.
2364 * @param pg the peer group to continue starting
2368 GNUNET_TESTING_daemons_continue_startup(struct GNUNET_TESTING_PeerGroup *pg)
2372 for (i = 0; i < pg->total; i++)
2374 GNUNET_TESTING_daemon_continue_startup(pg->peers[i].daemon);
2379 * Start count gnunetd processes with the same set of transports and
2380 * applications. The port numbers (any option called "PORT") will be
2381 * adjusted to ensure that no two peers running on the same system
2382 * have the same port(s) in their respective configurations.
2384 * @param sched scheduler to use
2385 * @param cfg configuration template to use
2386 * @param total number of daemons to start
2387 * @param timeout total time allowed for peers to start
2388 * @param hostkey_callback function to call on each peers hostkey generation
2389 * if NULL, peers will be started by this call, if non-null,
2390 * GNUNET_TESTING_daemons_continue_startup must be called after
2391 * successful hostkey generation
2392 * @param hostkey_cls closure for hostkey callback
2393 * @param cb function to call on each daemon that was started
2394 * @param cb_cls closure for cb
2395 * @param connect_callback function to call each time two hosts are connected
2396 * @param connect_callback_cls closure for connect_callback
2397 * @param hostnames space-separated list of hostnames to use; can be NULL (to run
2398 * everything on localhost).
2399 * @return NULL on error, otherwise handle to control peer group
2401 struct GNUNET_TESTING_PeerGroup *
2402 GNUNET_TESTING_daemons_start (struct GNUNET_SCHEDULER_Handle *sched,
2403 const struct GNUNET_CONFIGURATION_Handle *cfg,
2405 struct GNUNET_TIME_Relative timeout,
2406 GNUNET_TESTING_NotifyHostkeyCreated hostkey_callback,
2408 GNUNET_TESTING_NotifyDaemonRunning cb,
2410 GNUNET_TESTING_NotifyConnection
2411 connect_callback, void *connect_callback_cls,
2412 const char *hostnames)
2414 struct GNUNET_TESTING_PeerGroup *pg;
2418 const char *hostname;
2419 char *baseservicehome;
2420 char *newservicehome;
2422 struct GNUNET_CONFIGURATION_Handle *pcfg;
2424 unsigned int hostcnt;
2433 pg = GNUNET_malloc (sizeof (struct GNUNET_TESTING_PeerGroup));
2437 pg->cb_cls = cb_cls;
2438 pg->notify_connection = connect_callback;
2439 pg->notify_connection_cls = connect_callback_cls;
2441 pg->max_timeout = GNUNET_TIME_relative_to_absolute(timeout);
2442 pg->peers = GNUNET_malloc (total * sizeof (struct PeerData));
2443 if (NULL != hostnames)
2446 /* skip leading spaces */
2447 while ((0 != *hostnames) && (isspace (*hostnames)))
2450 while ('\0' != *rpos)
2452 if (isspace (*rpos))
2456 pg->hosts = GNUNET_malloc (off * sizeof (struct HostData));
2458 start = GNUNET_strdup (hostnames);
2460 while ('\0' != *pos)
2465 if (strlen (start) > 0)
2467 pg->hosts[off].minport = LOW_PORT;
2468 pg->hosts[off++].hostname = start;
2474 if (strlen (start) > 0)
2476 pg->hosts[off].minport = LOW_PORT;
2477 pg->hosts[off++].hostname = start;
2481 GNUNET_free (start);
2482 GNUNET_free (pg->hosts);
2486 minport = 0; /* make gcc happy */
2493 for (off = 0; off < total; off++)
2497 hostname = pg->hosts[off % hostcnt].hostname;
2498 pcfg = make_config (cfg, &pg->hosts[off % hostcnt].minport, hostname);
2503 pcfg = make_config (cfg, &minport, hostname);
2508 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2510 ("Could not create configuration for peer number %u on `%s'!\n"),
2511 off, hostname == NULL ? "localhost" : hostname);
2516 GNUNET_CONFIGURATION_get_value_string (pcfg, "PATHS", "SERVICEHOME",
2519 GNUNET_asprintf (&newservicehome,
2520 "%s/%d/", baseservicehome, off);
2521 GNUNET_free (baseservicehome);
2525 tmpdir = getenv ("TMPDIR");
2526 tmpdir = tmpdir ? tmpdir : "/tmp";
2527 GNUNET_asprintf (&newservicehome,
2530 "gnunet-testing-test-test", off);
2532 GNUNET_CONFIGURATION_set_value_string (pcfg,
2534 "SERVICEHOME", newservicehome);
2535 GNUNET_free (newservicehome);
2536 pg->peers[off].cfg = pcfg;
2537 pg->peers[off].allowed_peers = GNUNET_CONTAINER_multihashmap_create(total);
2538 pg->peers[off].connect_peers = GNUNET_CONTAINER_multihashmap_create(total);
2539 pg->peers[off].blacklisted_peers = GNUNET_CONTAINER_multihashmap_create(total);
2540 pg->peers[off].pg = pg;
2541 pg->peers[off].daemon = GNUNET_TESTING_daemon_start (sched,
2548 if (NULL == pg->peers[off].daemon)
2549 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2550 _("Could not start peer number %u!\n"), off);
2557 * Get a daemon by number, so callers don't have to do nasty
2558 * offsetting operation.
2560 struct GNUNET_TESTING_Daemon *
2561 GNUNET_TESTING_daemon_get (struct GNUNET_TESTING_PeerGroup *pg, unsigned int position)
2563 if (position < pg->total)
2564 return pg->peers[position].daemon;
2570 * Prototype of a function that will be called when a
2571 * particular operation was completed the testing library.
2573 * @param cls closure
2574 * @param emsg NULL on success
2576 void restart_callback (void *cls,
2577 const struct GNUNET_PeerIdentity *id,
2578 const struct GNUNET_CONFIGURATION_Handle *cfg,
2579 struct GNUNET_TESTING_Daemon *d,
2582 struct RestartContext *restart_context = cls;
2586 restart_context->peers_restarted++;
2590 restart_context->peers_restart_failed++;
2593 if (restart_context->peers_restarted == restart_context->peer_group->total)
2595 restart_context->callback(restart_context->callback_cls, NULL);
2596 GNUNET_free(restart_context);
2598 else if (restart_context->peers_restart_failed + restart_context->peers_restarted == restart_context->peer_group->total)
2600 restart_context->callback(restart_context->callback_cls, "Failed to restart peers!");
2601 GNUNET_free(restart_context);
2607 * Restart all peers in the given group.
2609 * @param pg the handle to the peer group
2610 * @param timeout how long to wait on failure
2611 * @param callback function to call on completion (or failure)
2612 * @param callback_cls closure for the callback function
2615 GNUNET_TESTING_daemons_restart (struct GNUNET_TESTING_PeerGroup *pg, GNUNET_TESTING_NotifyCompletion callback, void *callback_cls)
2617 struct RestartContext *restart_context;
2622 restart_context = GNUNET_malloc(sizeof(struct RestartContext));
2623 restart_context->peer_group = pg;
2624 restart_context->peers_restarted = 0;
2625 restart_context->callback = callback;
2626 restart_context->callback_cls = callback_cls;
2628 for (off = 0; off < pg->total; off++)
2630 GNUNET_TESTING_daemon_restart (pg->peers[off].daemon, &restart_callback, restart_context);
2636 * Shutdown all peers started in the given group.
2638 * @param pg handle to the peer group
2639 * @param timeout how long to wait for shutdown
2643 GNUNET_TESTING_daemons_stop (struct GNUNET_TESTING_PeerGroup *pg, struct GNUNET_TIME_Relative timeout)
2647 for (off = 0; off < pg->total; off++)
2649 /* FIXME: should we wait for our
2650 continuations to be called here? This
2651 would require us to take a continuation
2654 if (NULL != pg->peers[off].daemon)
2655 GNUNET_TESTING_daemon_stop (pg->peers[off].daemon, timeout, NULL, NULL, GNUNET_YES);
2656 if (NULL != pg->peers[off].cfg)
2657 GNUNET_CONFIGURATION_destroy (pg->peers[off].cfg);
2659 if (pg->peers[off].allowed_peers != NULL)
2660 GNUNET_CONTAINER_multihashmap_destroy(pg->peers[off].allowed_peers);
2661 if (pg->peers[off].connect_peers != NULL)
2662 GNUNET_CONTAINER_multihashmap_destroy(pg->peers[off].connect_peers);
2663 if (pg->peers[off].blacklisted_peers != NULL)
2664 GNUNET_CONTAINER_multihashmap_destroy(pg->peers[off].blacklisted_peers);
2667 GNUNET_free (pg->peers);
2668 if (NULL != pg->hosts)
2670 GNUNET_free (pg->hosts[0].hostname);
2671 GNUNET_free (pg->hosts);
2677 /* end of testing_group.c */