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 3, or (at your
8 option) any later version.
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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 Nathan Evans
25 * @author Christian Grothoff
29 #include "gnunet_arm_service.h"
30 #include "gnunet_testing_lib.h"
31 #include "gnunet_core_service.h"
33 #define VERBOSE_TESTING GNUNET_NO
35 #define DEBUG_CHURN GNUNET_NO
38 * Lowest port used for GNUnet testing. Should be high enough to not
39 * conflict with other applications running on the hosts but be low
40 * enough to not conflict with client-ports (typically starting around
43 #define LOW_PORT 10000
46 * Highest port used for GNUnet testing. Should be low enough to not
47 * conflict with the port range for "local" ports (client apps; see
48 * /proc/sys/net/ipv4/ip_local_port_range on Linux for example).
50 #define HIGH_PORT 56000
52 #define MAX_OUTSTANDING_CONNECTIONS 10
54 #define MAX_CONCURRENT_HOSTKEYS 10
56 #define MAX_CONCURRENT_STARTING 10
58 #define MAX_CONCURRENT_SHUTDOWN 10
60 #define CONNECT_TIMEOUT GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 300)
62 #define CONNECT_ATTEMPTS 8
65 * Prototype of a function called whenever two peers would be connected
66 * in a certain topology.
68 typedef int (*GNUNET_TESTING_ConnectionProcessor)(struct GNUNET_TESTING_PeerGroup *pg,
74 * Context for handling churning a peer group
79 * Callback used to notify of churning finished
81 GNUNET_TESTING_NotifyCompletion cb;
84 * Closure for callback
89 * Number of peers that still need to be started
91 unsigned int num_to_start;
94 * Number of peers that still need to be stopped
96 unsigned int num_to_stop;
99 * Number of peers that failed to start
101 unsigned int num_failed_start;
104 * Number of peers that failed to stop
106 unsigned int num_failed_stop;
109 struct RestartContext
112 * The group of peers being restarted
114 struct GNUNET_TESTING_PeerGroup *peer_group;
117 * How many peers have been restarted thus far
119 unsigned int peers_restarted;
122 * How many peers got an error when restarting
124 unsigned int peers_restart_failed;
127 * The function to call once all peers have been restarted
129 GNUNET_TESTING_NotifyCompletion callback;
132 * Closure for callback function
139 struct ShutdownContext
142 * Total peers to wait for
144 unsigned int total_peers;
147 * Number of peers successfully shut down
149 unsigned int peers_down;
152 * Number of peers failed to shut down
154 unsigned int peers_failed;
157 * Number of peers we have started shutting
158 * down. If too many, wait on them.
160 unsigned int outstanding;
163 * Timeout for shutdown.
165 struct GNUNET_TIME_Relative timeout;
168 * Callback to call when all peers either
169 * shutdown or failed to shutdown
171 GNUNET_TESTING_NotifyCompletion cb;
179 struct CreateTopologyContext
183 * Function to call with number of connections
185 GNUNET_TESTING_NotifyConnections cont;
188 * Closure for connection notification
194 struct PeerConnection
199 struct PeerConnection *next;
202 * Pointer to daemon handle
204 struct GNUNET_TESTING_Daemon *daemon;
209 struct InternalStartContext
212 * Pointer to peerdata
214 struct PeerData *peer;
217 * Timeout for peer startup
219 struct GNUNET_TIME_Relative timeout;
222 * Client callback for hostkey notification
224 GNUNET_TESTING_NotifyHostkeyCreated hostkey_callback;
227 * Closure for hostkey_callback
232 * Client callback for peer start notification
234 GNUNET_TESTING_NotifyDaemonRunning start_cb;
242 * Hostname, where to start the peer
244 const char *hostname;
248 * Data we keep per peer.
253 * (Initial) configuration of the host.
254 * (initial because clients could change
255 * it and we would not know about those
258 struct GNUNET_CONFIGURATION_Handle *cfg;
261 * Handle for controlling the daemon.
263 struct GNUNET_TESTING_Daemon *daemon;
266 * The peergroup this peer belongs to.
268 struct GNUNET_TESTING_PeerGroup *pg;
271 * Hash map of allowed peer connections (F2F created topology)
273 struct GNUNET_CONTAINER_MultiHashMap *allowed_peers;
276 * Hash map of blacklisted peers
278 struct GNUNET_CONTAINER_MultiHashMap *blacklisted_peers;
281 * Hash map of peer connections
283 struct GNUNET_CONTAINER_MultiHashMap *connect_peers;
286 * Temporary hash map of peer connections
288 struct GNUNET_CONTAINER_MultiHashMap *connect_peers_working_set;
291 * Temporary variable for topology creation, should be reset before
292 * creating any topology so the count is valid once finished.
297 * Context to keep track of peers being started, to
298 * stagger hostkey generation and peer startup.
300 struct InternalStartContext internal_context;
305 * Data we keep per host.
315 * Lowest port that we have not yet used
321 struct TopologyIterateContext
324 * Callback for notifying of two connected peers.
326 GNUNET_TESTING_NotifyTopology topology_cb;
329 * Closure for topology_cb
334 * Number of peers currently connected to.
336 unsigned int connected;
339 * Number of peers we have finished iterating.
341 unsigned int completed;
344 * Number of peers total.
349 struct StatsIterateContext
352 * Continuation to call once all stats information has been retrieved.
354 GNUNET_STATISTICS_Callback cont;
357 * Proc function to call on each value received.
359 GNUNET_TESTING_STATISTICS_Iterator proc;
362 * Closure for topology_cb
367 * Number of peers currently connected to.
369 unsigned int connected;
372 * Number of peers we have finished iterating.
374 unsigned int completed;
377 * Number of peers total.
385 struct GNUNET_TESTING_Daemon *daemon;
388 struct StatsCoreContext
391 struct GNUNET_TESTING_Daemon *daemon;
393 * Handle to the statistics service.
395 struct GNUNET_STATISTICS_Handle *stats_handle;
398 * Handle for getting statistics.
400 struct GNUNET_STATISTICS_GetHandle *stats_get_handle;
404 * Handle to a group of GNUnet peers.
406 struct GNUNET_TESTING_PeerGroup
411 struct GNUNET_SCHEDULER_Handle *sched;
414 * Configuration template.
416 const struct GNUNET_CONFIGURATION_Handle *cfg;
419 * Function to call on each started daemon.
421 //GNUNET_TESTING_NotifyDaemonRunning cb;
429 * Function to call on each topology connection created
431 GNUNET_TESTING_NotifyConnection notify_connection;
434 * Callback for notify_connection
436 void *notify_connection_cls;
439 * NULL-terminated array of information about
442 struct HostData *hosts;
445 * Array of "total" peers.
447 struct PeerData *peers;
450 * Number of peers in this group.
455 * At what time should we fail the peer startup process?
457 struct GNUNET_TIME_Absolute max_timeout;
460 * How many peers are being started right now?
462 unsigned int starting;
465 * How many peers have already been started?
467 unsigned int started;
472 struct GNUNET_CONFIGURATION_Handle *ret;
473 const char *hostname;
479 struct ConnectContext
481 struct GNUNET_TESTING_Daemon *first;
483 struct GNUNET_TESTING_Daemon *second;
485 struct GNUNET_TESTING_PeerGroup *pg;
489 * Convert unique ID to hash code.
491 * @param uid unique ID to convert
492 * @param hash set to uid (extended with zeros)
495 hash_from_uid (uint32_t uid,
496 GNUNET_HashCode *hash)
498 memset (hash, 0, sizeof(GNUNET_HashCode));
499 *((uint32_t*)hash) = uid;
503 * Convert hash code to unique ID.
505 * @param uid unique ID to convert
506 * @param hash set to uid (extended with zeros)
509 uid_from_hash (const GNUNET_HashCode *hash, uint32_t *uid)
511 memcpy (uid, hash, sizeof(uint32_t));
515 * Number of connects we are waiting on, allows us to rate limit
518 static int outstanding_connects;
521 * Get a topology from a string input.
523 * @param topology where to write the retrieved topology
524 * @param topology_string The string to attempt to
525 * get a configuration value from
526 * @return GNUNET_YES if topology string matched a
527 * known topology, GNUNET_NO if not
530 GNUNET_TESTING_topology_get(enum GNUNET_TESTING_Topology *topology, char * topology_string)
533 * Strings representing topologies in enum
535 static const char * topology_strings[] =
538 * A clique (everyone connected to everyone else).
543 * Small-world network (2d torus plus random links).
548 * Small-world network (ring plus random links).
568 * Certain percentage of peers are unable to communicate directly
569 * replicating NAT conditions
574 * Scale free topology.
579 * Straight line topology.
584 * All peers are disconnected.
592 if (topology_string == NULL)
594 while (topology_strings[curr] != NULL)
596 if (strcasecmp(topology_strings[curr], topology_string) == 0)
603 *topology = GNUNET_TESTING_TOPOLOGY_NONE;
609 * Get connect topology option from string input.
611 * @param topology_option where to write the retrieved topology
612 * @param topology_string The string to attempt to
613 * get a configuration value from
614 * @return GNUNET_YES if string matched a known
615 * topology option, GNUNET_NO if not
618 GNUNET_TESTING_topology_option_get (enum GNUNET_TESTING_TopologyOption *topology_option,
619 char * topology_string)
622 * Options for connecting a topology as strings.
624 static const char * topology_option_strings[] =
627 * Try to connect all peers specified in the topology.
632 * Choose a random subset of connections to create.
634 "CONNECT_RANDOM_SUBSET",
637 * Create at least X connections for each peer.
642 * Using a depth first search, create one connection
643 * per peer. If any are missed (graph disconnected)
644 * start over at those peers until all have at least one
650 * No options specified.
658 if (topology_string == NULL)
660 while (NULL != topology_option_strings[curr])
662 if (strcasecmp(topology_option_strings[curr], topology_string) == 0)
664 *topology_option = curr;
669 *topology_option = GNUNET_TESTING_TOPOLOGY_OPTION_NONE;
674 * Function to iterate over options. Copies
675 * the options to the target configuration,
676 * updating PORT values as needed.
679 * @param section name of the section
680 * @param option name of the option
681 * @param value value of the option
684 update_config (void *cls,
685 const char *section, const char *option, const char *value)
687 struct UpdateContext *ctx = cls;
692 if ((0 == strcmp (option, "PORT")) && (1 == sscanf (value, "%u", &ival)))
696 GNUNET_snprintf (cval, sizeof (cval), "%u", ctx->nport++);
701 if (0 == strcmp (option, "UNIXPATH"))
703 GNUNET_snprintf (uval,
705 "/tmp/test-service-%s-%u",
711 if ((0 == strcmp (option, "HOSTNAME")) && (ctx->hostname != NULL))
713 value = ctx->hostname;
716 GNUNET_CONFIGURATION_set_value_string (ctx->ret, section, option, value);
721 * Create a new configuration using the given configuration
722 * as a template; however, each PORT in the existing cfg
723 * must be renumbered by incrementing "*port". If we run
724 * out of "*port" numbers, return NULL.
726 * @param cfg template configuration
727 * @param port port numbers to use, update to reflect
728 * port numbers that were used
729 * @param upnum number to make unix domain socket names unique
730 * @param hostname hostname of the controlling host, to allow control connections from
732 * @return new configuration, NULL on error
734 static struct GNUNET_CONFIGURATION_Handle *
735 make_config (const struct GNUNET_CONFIGURATION_Handle *cfg,
738 const char *hostname)
740 struct UpdateContext uc;
748 uc.ret = GNUNET_CONFIGURATION_create ();
749 uc.hostname = hostname;
751 GNUNET_CONFIGURATION_iterate (cfg, &update_config, &uc);
752 if (uc.nport >= HIGH_PORT)
755 GNUNET_CONFIGURATION_destroy (uc.ret);
759 if (GNUNET_CONFIGURATION_get_value_string(cfg, "testing", "control_host", &control_host) == GNUNET_OK)
761 if (hostname != NULL)
762 GNUNET_asprintf(&allowed_hosts, "%s; 127.0.0.1; %s;", control_host, hostname);
764 GNUNET_asprintf(&allowed_hosts, "%s; 127.0.0.1;", control_host);
766 GNUNET_CONFIGURATION_set_value_string(uc.ret, "core", "ACCEPT_FROM", allowed_hosts);
767 GNUNET_CONFIGURATION_set_value_string(uc.ret, "transport", "ACCEPT_FROM", allowed_hosts);
768 GNUNET_CONFIGURATION_set_value_string(uc.ret, "dht", "ACCEPT_FROM", allowed_hosts);
769 GNUNET_CONFIGURATION_set_value_string(uc.ret, "statistics", "ACCEPT_FROM", allowed_hosts);
770 GNUNET_free_non_null(control_host);
771 GNUNET_free(allowed_hosts);
775 /* arm needs to know to allow connections from the host on which it is running,
776 * otherwise gnunet-arm is unable to connect to it in some instances */
777 if (hostname != NULL)
779 GNUNET_asprintf(&allowed_hosts, "%s; 127.0.0.1;", hostname);
780 GNUNET_CONFIGURATION_set_value_string(uc.ret, "transport-udp", "BINDTO", hostname);
781 GNUNET_CONFIGURATION_set_value_string(uc.ret, "transport-tcp", "BINDTO", hostname);
782 GNUNET_CONFIGURATION_set_value_string(uc.ret, "arm", "ACCEPT_FROM", allowed_hosts);
783 GNUNET_free(allowed_hosts);
787 GNUNET_CONFIGURATION_set_value_string(uc.ret, "transport-tcp", "BINDTO", "127.0.0.1");
788 GNUNET_CONFIGURATION_set_value_string(uc.ret, "transport-udp", "BINDTO", "127.0.0.1");
791 *port = (uint16_t) uc.nport;
798 * Add entries to the peers connect list
800 * @param pg the peer group we are working with
801 * @param first index of the first peer
802 * @param second index of the second peer
804 * @return the number of connections added
805 * technically should only be 0 or 2
809 add_actual_connections(struct GNUNET_TESTING_PeerGroup *pg, unsigned int first, unsigned int second)
815 GNUNET_HashCode hash_first;
816 GNUNET_HashCode hash_second;
818 hash_from_uid(first, &hash_first);
819 hash_from_uid(second, &hash_second);
821 add_first = GNUNET_NO;
822 if (GNUNET_NO == GNUNET_CONTAINER_multihashmap_contains(pg->peers[first].connect_peers, &hash_second))
824 add_first = GNUNET_YES;
827 add_second = GNUNET_NO;
828 if (GNUNET_NO == GNUNET_CONTAINER_multihashmap_contains(pg->peers[second].connect_peers, &hash_first))
830 add_second = GNUNET_YES;
836 GNUNET_assert(GNUNET_OK == GNUNET_CONTAINER_multihashmap_put(pg->peers[first].connect_peers, &hash_second, pg->peers[second].daemon, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY));
837 pg->peers[first].num_connections++;
843 GNUNET_assert(GNUNET_OK == GNUNET_CONTAINER_multihashmap_put(pg->peers[second].connect_peers, &hash_first, pg->peers[first].daemon, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY));
844 pg->peers[second].num_connections++;
853 * Add entries to the peers allowed connections list
855 * @param pg the peer group we are working with
856 * @param first index of the first peer
857 * @param second index of the second peer
859 * @return the number of connections added (can be 0, 1 or 2)
860 * technically should only be 0 or 2, but the small price
861 * of iterating over the lists (hashmaps in the future)
862 * for being sure doesn't bother me!
866 add_allowed_connections(struct GNUNET_TESTING_PeerGroup *pg, unsigned int first, unsigned int second)
870 struct PeerConnection *first_iter;
871 struct PeerConnection *second_iter;
872 struct PeerConnection *new_first;
873 struct PeerConnection *new_second;
878 GNUNET_HashCode hash_first;
879 GNUNET_HashCode hash_second;
881 hash_from_uid(first, &hash_first);
882 hash_from_uid(second, &hash_second);
884 add_first = GNUNET_NO;
885 if (GNUNET_NO == GNUNET_CONTAINER_multihashmap_contains(pg->peers[first].allowed_peers, &hash_second))
887 add_first = GNUNET_YES;
890 add_second = GNUNET_NO;
891 if (GNUNET_NO == GNUNET_CONTAINER_multihashmap_contains(pg->peers[second].allowed_peers, &hash_first))
893 add_second = GNUNET_YES;
896 first_iter = pg->peers[first].connected_peers;
897 while (first_iter != NULL)
899 if (first_iter->daemon == pg->peers[second].daemon)
900 add_first = GNUNET_NO;
901 first_iter = first_iter->next;
904 second_iter = pg->peers[second].connected_peers;
905 add_second = GNUNET_YES;
906 while (second_iter != NULL)
908 if (second_iter->daemon == pg->peers[first].daemon)
909 add_second = GNUNET_NO;
910 second_iter = second_iter->next;
917 GNUNET_assert(GNUNET_OK == GNUNET_CONTAINER_multihashmap_put(pg->peers[first].allowed_peers, &hash_second, pg->peers[second].daemon, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY));
919 new_first = GNUNET_malloc(sizeof(struct PeerConnection));
920 new_first->daemon = pg->peers[second].daemon;
921 new_first->next = pg->peers[first].connected_peers;
922 pg->peers[first].connected_peers = new_first;
924 pg->peers[first].num_connections++;
930 GNUNET_assert(GNUNET_OK == GNUNET_CONTAINER_multihashmap_put(pg->peers[second].allowed_peers, &hash_first, pg->peers[first].daemon, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY));
932 new_second = GNUNET_malloc(sizeof(struct PeerConnection));
933 new_second->daemon = pg->peers[first].daemon;
934 new_second->next = pg->peers[second].connected_peers;
935 pg->peers[second].connected_peers = new_second;
936 pg->peers[first].num_connections++;
938 pg->peers[second].num_connections++;
946 * Add entries to the peers blacklisted list
948 * @param pg the peer group we are working with
949 * @param first index of the first peer
950 * @param second index of the second peer
952 * @return the number of connections added (can be 0, 1 or 2)
956 blacklist_connections(struct GNUNET_TESTING_PeerGroup *pg, unsigned int first, unsigned int second)
961 GNUNET_HashCode hash_first;
962 GNUNET_HashCode hash_second;
964 hash_from_uid(first, &hash_first);
965 hash_from_uid(second, &hash_second);
967 add_first = GNUNET_NO;
968 if (GNUNET_NO == GNUNET_CONTAINER_multihashmap_contains(pg->peers[first].blacklisted_peers, &hash_second))
970 add_first = GNUNET_YES;
973 add_second = GNUNET_NO;
974 if (GNUNET_NO == GNUNET_CONTAINER_multihashmap_contains(pg->peers[second].blacklisted_peers, &hash_first))
976 add_second = GNUNET_YES;
982 GNUNET_assert(GNUNET_OK == GNUNET_CONTAINER_multihashmap_put(pg->peers[first].blacklisted_peers, &hash_second, pg->peers[second].daemon, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY));
983 pg->peers[first].num_connections++;
989 GNUNET_assert(GNUNET_OK == GNUNET_CONTAINER_multihashmap_put(pg->peers[second].blacklisted_peers, &hash_first, pg->peers[first].daemon, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY));
990 pg->peers[second].num_connections++;
998 * Remove entries from the peers blacklisted list
1000 * @param pg the peer group we are working with
1001 * @param first index of the first peer
1002 * @param second index of the second peer
1004 * @return the number of connections removed (can be 0, 1 or 2)
1008 unblacklist_connections(struct GNUNET_TESTING_PeerGroup *pg, unsigned int first, unsigned int second)
1013 GNUNET_HashCode hash_first;
1014 GNUNET_HashCode hash_second;
1016 hash_from_uid(first, &hash_first);
1017 hash_from_uid(second, &hash_second);
1019 remove_first = GNUNET_CONTAINER_multihashmap_contains(pg->peers[first].blacklisted_peers, &hash_second);
1020 remove_second = GNUNET_CONTAINER_multihashmap_contains(pg->peers[second].blacklisted_peers, &hash_first);
1025 GNUNET_assert(GNUNET_YES == GNUNET_CONTAINER_multihashmap_remove(pg->peers[first].blacklisted_peers, &hash_second, pg->peers[second].daemon));
1031 GNUNET_assert(GNUNET_YES == GNUNET_CONTAINER_multihashmap_remove(pg->peers[second].blacklisted_peers, &hash_first, pg->peers[first].daemon));
1039 * Scale free network construction as described in:
1041 * "Emergence of Scaling in Random Networks." Science 286, 509-512, 1999.
1043 * Start with a network of "one" peer, then progressively add
1044 * peers up to the total number. At each step, iterate over
1045 * all possible peers and connect new peer based on number of
1046 * existing connections of the target peer.
1048 * @param pg the peer group we are dealing with
1049 * @param proc the connection processor to use
1051 * @return the number of connections created
1054 create_scale_free (struct GNUNET_TESTING_PeerGroup *pg, GNUNET_TESTING_ConnectionProcessor proc)
1057 unsigned int total_connections;
1058 unsigned int outer_count;
1060 unsigned int previous_total_connections;
1064 GNUNET_assert(pg->total > 1);
1066 /* Add a connection between the first two nodes */
1067 total_connections = proc(pg, 0, 1);
1069 for (outer_count = 1; outer_count < pg->total; outer_count++)
1071 previous_total_connections = total_connections;
1072 for (i = 0; i < outer_count; i++)
1074 probability = pg->peers[i].num_connections / (double)previous_total_connections;
1075 random = ((double) GNUNET_CRYPTO_random_u64(GNUNET_CRYPTO_QUALITY_WEAK,
1076 UINT64_MAX)) / ( (double) UINT64_MAX);
1078 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1079 "Considering connecting peer %d to peer %d\n",
1082 if (random < probability)
1085 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1086 "Connecting peer %d to peer %d\n",
1089 total_connections += proc(pg, outer_count, i);
1094 return total_connections;
1098 * Create a topology given a peer group (set of running peers)
1099 * and a connection processor.
1101 * @param pg the peergroup to create the topology on
1102 * @param proc the connection processor to call to actually set
1103 * up connections between two peers
1105 * @return the number of connections that were set up
1109 create_small_world_ring(struct GNUNET_TESTING_PeerGroup *pg, GNUNET_TESTING_ConnectionProcessor proc)
1113 unsigned int natLog;
1114 unsigned int randomPeer;
1115 double random, logNModifier, percentage;
1116 unsigned int smallWorldConnections;
1121 unsigned int useAnd;
1122 int connect_attempts;
1124 logNModifier = 0.5; /* FIXME: default value? */
1125 if (GNUNET_OK == GNUNET_CONFIGURATION_get_value_string(pg->cfg,
1130 if (sscanf(p_string, "%lf", &logNModifier) != 1)
1131 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
1132 _("Invalid value `%s' for option `%s' in section `%s': expected float\n"),
1136 GNUNET_free (p_string);
1138 percentage = 0.5; /* FIXME: default percentage? */
1139 if (GNUNET_OK == GNUNET_CONFIGURATION_get_value_string(pg->cfg,
1144 if (sscanf(p_string, "%lf", &percentage) != 1)
1145 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
1146 _("Invalid value `%s' for option `%s' in section `%s': expected float\n"),
1150 GNUNET_free (p_string);
1152 natLog = log (pg->total);
1153 connsPerPeer = ceil (natLog * logNModifier);
1155 if (connsPerPeer % 2 == 1)
1158 smallWorldConnections = 0;
1159 connect_attempts = 0;
1160 for (i = 0; i < pg->total; i++)
1163 max = i + connsPerPeer / 2;
1164 min = i - connsPerPeer / 2;
1166 if (max > pg->total - 1)
1168 max = max - pg->total;
1174 min = pg->total - 1 + min;
1178 for (j = 0; j < connsPerPeer / 2; j++)
1180 random = ((double) GNUNET_CRYPTO_random_u64(GNUNET_CRYPTO_QUALITY_WEAK,
1181 UINT64_MAX) / ( (double) UINT64_MAX));
1182 if (random < percentage)
1184 /* Connect to uniformly selected random peer */
1186 GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK,
1188 while ((((randomPeer < max) && (randomPeer > min))
1189 && (useAnd == 0)) || (((randomPeer > min)
1190 || (randomPeer < max))
1194 GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK,
1197 smallWorldConnections +=
1198 proc (pg, i, randomPeer);
1202 nodeToConnect = i + j + 1;
1203 if (nodeToConnect > pg->total - 1)
1205 nodeToConnect = nodeToConnect - pg->total;
1208 proc (pg, i, nodeToConnect);
1214 connect_attempts += smallWorldConnections;
1216 return connect_attempts;
1220 * Create a topology given a peer group (set of running peers)
1221 * and a connection processor.
1223 * @param pg the peergroup to create the topology on
1224 * @param proc the connection processor to call to actually set
1225 * up connections between two peers
1227 * @return the number of connections that were set up
1231 create_nated_internet (struct GNUNET_TESTING_PeerGroup *pg, GNUNET_TESTING_ConnectionProcessor proc)
1233 unsigned int outer_count, inner_count;
1234 unsigned int cutoff;
1235 int connect_attempts;
1236 double nat_percentage;
1239 nat_percentage = 0.6; /* FIXME: default percentage? */
1240 if (GNUNET_OK == GNUNET_CONFIGURATION_get_value_string(pg->cfg,
1245 if (sscanf(p_string, "%lf", &nat_percentage) != 1)
1246 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
1247 _("Invalid value `%s' for option `%s' in section `%s': expected float\n"),
1251 GNUNET_free (p_string);
1256 cutoff = (unsigned int) (nat_percentage * pg->total);
1258 connect_attempts = 0;
1260 for (outer_count = 0; outer_count < pg->total - 1; outer_count++)
1262 for (inner_count = outer_count + 1; inner_count < pg->total;
1265 if ((outer_count > cutoff) || (inner_count > cutoff))
1268 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1269 "Connecting peer %d to peer %d\n",
1270 outer_count, inner_count);
1272 connect_attempts += proc(pg, outer_count, inner_count);
1277 return connect_attempts;
1282 * Create a topology given a peer group (set of running peers)
1283 * and a connection processor.
1285 * @param pg the peergroup to create the topology on
1286 * @param proc the connection processor to call to actually set
1287 * up connections between two peers
1289 * @return the number of connections that were set up
1293 create_small_world (struct GNUNET_TESTING_PeerGroup *pg, GNUNET_TESTING_ConnectionProcessor proc)
1295 unsigned int i, j, k;
1296 unsigned int square;
1299 unsigned int toggle = 1;
1300 unsigned int nodeToConnect;
1301 unsigned int natLog;
1302 unsigned int node1Row;
1303 unsigned int node1Col;
1304 unsigned int node2Row;
1305 unsigned int node2Col;
1306 unsigned int distance;
1307 double probability, random, percentage;
1308 unsigned int smallWorldConnections;
1309 unsigned int small_world_it;
1311 int connect_attempts;
1312 square = floor (sqrt (pg->total));
1316 percentage = 0.5; /* FIXME: default percentage? */
1317 if (GNUNET_OK == GNUNET_CONFIGURATION_get_value_string(pg->cfg,
1322 if (sscanf(p_string, "%lf", &percentage) != 1)
1323 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
1324 _("Invalid value `%s' for option `%s' in section `%s': expected float\n"),
1328 GNUNET_free (p_string);
1330 if (percentage < 0.0)
1332 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
1333 _("Invalid value `%s' for option `%s' in section `%s': got %f, needed value greater than 0\n"),
1334 "PERCENTAGE", "TESTING", percentage);
1337 probability = 0.5; /* FIXME: default percentage? */
1338 if (GNUNET_OK == GNUNET_CONFIGURATION_get_value_string(pg->cfg,
1343 if (sscanf(p_string, "%lf", &probability) != 1)
1344 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
1345 _("Invalid value `%s' for option `%s' in section `%s': expected float\n"),
1349 GNUNET_free (p_string);
1351 if (square * square != pg->total)
1353 while (rows * cols < pg->total)
1355 if (toggle % 2 == 0)
1364 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1365 _("Connecting nodes in 2d torus topology: %u rows %u columns\n"),
1369 connect_attempts = 0;
1370 /* Rows and columns are all sorted out, now iterate over all nodes and connect each
1371 * to the node to its right and above. Once this is over, we'll have our torus!
1372 * Special case for the last node (if the rows and columns are not equal), connect
1373 * to the first in the row to maintain topology.
1375 for (i = 0; i < pg->total; i++)
1377 /* First connect to the node to the right */
1378 if (((i + 1) % cols != 0) && (i + 1 != pg->total))
1379 nodeToConnect = i + 1;
1380 else if (i + 1 == pg->total)
1381 nodeToConnect = rows * cols - cols;
1383 nodeToConnect = i - cols + 1;
1385 connect_attempts += proc (pg, i, nodeToConnect);
1388 nodeToConnect = (rows * cols) - cols + i;
1390 nodeToConnect = i - cols;
1392 if (nodeToConnect < pg->total)
1393 connect_attempts += proc (pg, i, nodeToConnect);
1395 natLog = log (pg->total);
1396 #if VERBOSE_TESTING > 2
1397 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1398 _("natural log of %d is %d, will run %d iterations\n"),
1399 pg->total, natLog, (int) (natLog * percentage));
1400 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, _("Total connections added thus far: %u!\n"), connect_attempts);
1402 smallWorldConnections = 0;
1403 small_world_it = (unsigned int)(natLog * percentage);
1404 GNUNET_assert(small_world_it > 0 && small_world_it < (unsigned int)-1);
1405 for (i = 0; i < small_world_it; i++)
1407 for (j = 0; j < pg->total; j++)
1409 /* Determine the row and column of node at position j on the 2d torus */
1410 node1Row = j / cols;
1411 node1Col = j - (node1Row * cols);
1412 for (k = 0; k < pg->total; k++)
1414 /* Determine the row and column of node at position k on the 2d torus */
1415 node2Row = k / cols;
1416 node2Col = k - (node2Row * cols);
1417 /* Simple Cartesian distance */
1418 distance = abs (node1Row - node2Row) + abs (node1Col - node2Col);
1421 /* Calculate probability as 1 over the square of the distance */
1422 probability = 1.0 / (distance * distance);
1423 /* Choose a random value between 0 and 1 */
1424 random = ((double) GNUNET_CRYPTO_random_u64(GNUNET_CRYPTO_QUALITY_WEAK,
1425 UINT64_MAX)) / ( (double) UINT64_MAX);
1426 /* If random < probability, then connect the two nodes */
1427 if (random < probability)
1428 smallWorldConnections += proc (pg, j, k);
1434 connect_attempts += smallWorldConnections;
1435 #if VERBOSE_TESTING > 2
1436 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1437 _("Total connections added for small world: %d!\n"),
1438 smallWorldConnections);
1440 return connect_attempts;
1444 * Create a topology given a peer group (set of running peers)
1445 * and a connection processor.
1447 * @param pg the peergroup to create the topology on
1448 * @param proc the connection processor to call to actually set
1449 * up connections between two peers
1451 * @return the number of connections that were set up
1455 create_erdos_renyi (struct GNUNET_TESTING_PeerGroup *pg, GNUNET_TESTING_ConnectionProcessor proc)
1458 unsigned int outer_count;
1459 unsigned int inner_count;
1460 int connect_attempts;
1464 probability = 0.5; /* FIXME: default percentage? */
1465 if (GNUNET_OK == GNUNET_CONFIGURATION_get_value_string(pg->cfg,
1470 if (sscanf(p_string, "%lf", &probability) != 1)
1471 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
1472 _("Invalid value `%s' for option `%s' in section `%s': expected float\n"),
1476 GNUNET_free (p_string);
1478 connect_attempts = 0;
1479 for (outer_count = 0; outer_count < pg->total - 1; outer_count++)
1481 for (inner_count = outer_count + 1; inner_count < pg->total;
1484 temp_rand = ((double) GNUNET_CRYPTO_random_u64(GNUNET_CRYPTO_QUALITY_WEAK,
1485 UINT64_MAX)) / ( (double) UINT64_MAX);
1487 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1488 _("rand is %f probability is %f\n"), temp_rand,
1491 if (temp_rand < probability)
1493 connect_attempts += proc (pg, outer_count, inner_count);
1498 return connect_attempts;
1502 * Create a topology given a peer group (set of running peers)
1503 * and a connection processor.
1505 * @param pg the peergroup to create the topology on
1506 * @param proc the connection processor to call to actually set
1507 * up connections between two peers
1509 * @return the number of connections that were set up
1513 create_2d_torus (struct GNUNET_TESTING_PeerGroup *pg, GNUNET_TESTING_ConnectionProcessor proc)
1516 unsigned int square;
1519 unsigned int toggle = 1;
1520 unsigned int nodeToConnect;
1521 int connect_attempts;
1523 connect_attempts = 0;
1525 square = floor (sqrt (pg->total));
1529 if (square * square != pg->total)
1531 while (rows * cols < pg->total)
1533 if (toggle % 2 == 0)
1542 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1543 _("Connecting nodes in 2d torus topology: %u rows %u columns\n"),
1546 /* Rows and columns are all sorted out, now iterate over all nodes and connect each
1547 * to the node to its right and above. Once this is over, we'll have our torus!
1548 * Special case for the last node (if the rows and columns are not equal), connect
1549 * to the first in the row to maintain topology.
1551 for (i = 0; i < pg->total; i++)
1553 /* First connect to the node to the right */
1554 if (((i + 1) % cols != 0) && (i + 1 != pg->total))
1555 nodeToConnect = i + 1;
1556 else if (i + 1 == pg->total)
1557 nodeToConnect = rows * cols - cols;
1559 nodeToConnect = i - cols + 1;
1561 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1562 "Connecting peer %d to peer %d\n",
1565 connect_attempts += proc(pg, i, nodeToConnect);
1567 /* Second connect to the node immediately above */
1569 nodeToConnect = (rows * cols) - cols + i;
1571 nodeToConnect = i - cols;
1573 if (nodeToConnect < pg->total)
1576 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1577 "Connecting peer %d to peer %d\n",
1580 connect_attempts += proc(pg, i, nodeToConnect);
1585 return connect_attempts;
1590 * Create a topology given a peer group (set of running peers)
1591 * and a connection processor.
1593 * @param pg the peergroup to create the topology on
1594 * @param proc the connection processor to call to actually set
1595 * up connections between two peers
1597 * @return the number of connections that were set up
1601 create_clique (struct GNUNET_TESTING_PeerGroup *pg, GNUNET_TESTING_ConnectionProcessor proc)
1603 unsigned int outer_count;
1604 unsigned int inner_count;
1605 int connect_attempts;
1607 connect_attempts = 0;
1609 for (outer_count = 0; outer_count < pg->total - 1; outer_count++)
1611 for (inner_count = outer_count + 1; inner_count < pg->total;
1615 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1616 "Connecting peer %d to peer %d\n",
1617 outer_count, inner_count);
1619 connect_attempts += proc(pg, outer_count, inner_count);
1623 return connect_attempts;
1627 * Create a topology given a peer group (set of running peers)
1628 * and a connection processor.
1630 * @param pg the peergroup to create the topology on
1631 * @param proc the connection processor to call to actually set
1632 * up connections between two peers
1634 * @return the number of connections that were set up
1638 create_line (struct GNUNET_TESTING_PeerGroup *pg, GNUNET_TESTING_ConnectionProcessor proc)
1641 int connect_attempts;
1643 connect_attempts = 0;
1645 /* Connect each peer to the next highest numbered peer */
1646 for (count = 0; count < pg->total - 1; count++)
1649 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1650 "Connecting peer %d to peer %d\n",
1653 connect_attempts += proc(pg, count, count + 1);
1656 return connect_attempts;
1660 * Create a topology given a peer group (set of running peers)
1661 * and a connection processor.
1663 * @param pg the peergroup to create the topology on
1664 * @param proc the connection processor to call to actually set
1665 * up connections between two peers
1667 * @return the number of connections that were set up
1671 create_ring (struct GNUNET_TESTING_PeerGroup *pg, GNUNET_TESTING_ConnectionProcessor proc)
1674 int connect_attempts;
1676 connect_attempts = 0;
1678 /* Connect each peer to the next highest numbered peer */
1679 for (count = 0; count < pg->total - 1; count++)
1682 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1683 "Connecting peer %d to peer %d\n",
1686 connect_attempts += proc(pg, count, count + 1);
1689 /* Connect the last peer to the first peer */
1690 connect_attempts += proc(pg, pg->total - 1, 0);
1692 return connect_attempts;
1697 * Iterator for writing friends of a peer to a file.
1699 * @param cls closure, an open writable file handle
1700 * @param key the key the daemon was stored under
1701 * @param value the GNUNET_TESTING_Daemon that needs to be written.
1703 * @return GNUNET_YES to continue iteration
1705 * TODO: Could replace friend_file_iterator and blacklist_file_iterator
1706 * with a single file_iterator that takes a closure which contains
1707 * the prefix to write before the peer. Then this could be used
1708 * for blacklisting multiple transports and writing the friend
1709 * file. I'm sure *someone* will complain loudly about other
1710 * things that negate these functions even existing so no point in
1714 friend_file_iterator (void *cls,
1715 const GNUNET_HashCode * key,
1718 FILE *temp_friend_handle = cls;
1719 struct GNUNET_TESTING_Daemon *peer = value;
1720 struct GNUNET_PeerIdentity *temppeer;
1721 struct GNUNET_CRYPTO_HashAsciiEncoded peer_enc;
1723 temppeer = &peer->id;
1724 GNUNET_CRYPTO_hash_to_enc(&temppeer->hashPubKey, &peer_enc);
1725 fprintf(temp_friend_handle, "%s\n", (char *)&peer_enc);
1730 struct BlacklistContext
1733 * The (open) file handle to write to
1735 FILE *temp_file_handle;
1738 * The transport that this peer will be blacklisted on.
1744 * Iterator for writing blacklist data to appropriate files.
1746 * @param cls closure, an open writable file handle
1747 * @param key the key the daemon was stored under
1748 * @param value the GNUNET_TESTING_Daemon that needs to be written.
1750 * @return GNUNET_YES to continue iteration
1753 blacklist_file_iterator (void *cls,
1754 const GNUNET_HashCode * key,
1757 struct BlacklistContext *blacklist_ctx = cls;
1758 //FILE *temp_blacklist_handle = cls;
1759 struct GNUNET_TESTING_Daemon *peer = value;
1760 struct GNUNET_PeerIdentity *temppeer;
1761 struct GNUNET_CRYPTO_HashAsciiEncoded peer_enc;
1763 temppeer = &peer->id;
1764 GNUNET_CRYPTO_hash_to_enc(&temppeer->hashPubKey, &peer_enc);
1765 fprintf(blacklist_ctx->temp_file_handle, "%s:%s\n", blacklist_ctx->transport, (char *)&peer_enc);
1771 * Create the friend files based on the PeerConnection's
1772 * of each peer in the peer group, and copy the files
1773 * to the appropriate place
1775 * @param pg the peer group we are dealing with
1778 create_and_copy_friend_files (struct GNUNET_TESTING_PeerGroup *pg)
1780 FILE *temp_friend_handle;
1781 unsigned int pg_iter;
1782 char *temp_service_path;
1786 enum GNUNET_OS_ProcessStatusType type;
1787 unsigned long return_code;
1792 pidarr = GNUNET_malloc(sizeof(pid_t) * pg->total);
1793 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
1795 mytemp = GNUNET_DISK_mktemp("friends");
1796 GNUNET_assert(mytemp != NULL);
1797 temp_friend_handle = fopen (mytemp, "wt");
1798 GNUNET_assert(temp_friend_handle != NULL);
1799 GNUNET_CONTAINER_multihashmap_iterate(pg->peers[pg_iter].allowed_peers, &friend_file_iterator, temp_friend_handle);
1800 fclose(temp_friend_handle);
1803 GNUNET_CONFIGURATION_get_value_string(pg->peers[pg_iter].daemon->cfg, "PATHS", "SERVICEHOME", &temp_service_path))
1805 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
1806 _("No `%s' specified in peer configuration in section `%s', cannot copy friends file!\n"),
1809 if (UNLINK (mytemp) != 0)
1810 GNUNET_log_strerror_file (GNUNET_ERROR_TYPE_WARNING, "unlink", mytemp);
1811 GNUNET_free (mytemp);
1815 if (pg->peers[pg_iter].daemon->hostname == NULL) /* Local, just copy the file */
1817 GNUNET_asprintf (&arg, "%s/friends", temp_service_path);
1818 pidarr[pg_iter] = GNUNET_OS_start_process (NULL, NULL, "mv",
1819 "mv", mytemp, arg, NULL);
1821 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1822 _("Copying file with command cp %s %s\n"), mytemp, arg);
1827 else /* Remote, scp the file to the correct place */
1829 if (NULL != pg->peers[pg_iter].daemon->username)
1830 GNUNET_asprintf (&arg, "%s@%s:%s/friends", pg->peers[pg_iter].daemon->username, pg->peers[pg_iter].daemon->hostname, temp_service_path);
1832 GNUNET_asprintf (&arg, "%s:%s/friends", pg->peers[pg_iter].daemon->hostname, temp_service_path);
1833 pidarr[pg_iter] = GNUNET_OS_start_process (NULL, NULL, "scp",
1834 "scp", mytemp, arg, NULL);
1837 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1838 _("Copying file with command scp %s %s\n"), mytemp, arg);
1842 GNUNET_free (temp_service_path);
1843 GNUNET_free (mytemp);
1847 ret = GNUNET_SYSERR;
1848 while ((count < max_wait) && (ret != GNUNET_OK))
1851 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
1854 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1855 _("Checking copy status of file %d\n"), pg_iter);
1857 if (pidarr[pg_iter] != 0) /* Check for already completed! */
1859 if (GNUNET_OS_process_status(pidarr[pg_iter], &type, &return_code) != GNUNET_OK)
1861 ret = GNUNET_SYSERR;
1863 else if ((type != GNUNET_OS_PROCESS_EXITED) || (return_code != 0))
1865 ret = GNUNET_SYSERR;
1869 pidarr[pg_iter] = 0;
1871 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1872 _("File %d copied\n"), pg_iter);
1878 if (ret == GNUNET_SYSERR)
1880 /* FIXME: why sleep here? -CG */
1886 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1887 _("Finished copying all friend files!\n"));
1889 GNUNET_free(pidarr);
1895 * Create the blacklist files based on the PeerConnection's
1896 * of each peer in the peer group, and copy the files
1897 * to the appropriate place.
1899 * @param pg the peer group we are dealing with
1900 * @param transports space delimited list of transports to blacklist
1903 create_and_copy_blacklist_files (struct GNUNET_TESTING_PeerGroup *pg, char *transports)
1905 FILE *temp_file_handle;
1906 static struct BlacklistContext blacklist_ctx;
1907 unsigned int pg_iter;
1908 char *temp_service_path;
1912 enum GNUNET_OS_ProcessStatusType type;
1913 unsigned long return_code;
1920 char *temp_transports;
1922 pidarr = GNUNET_malloc(sizeof(pid_t) * pg->total);
1923 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
1925 mytemp = GNUNET_DISK_mktemp("blacklist");
1926 GNUNET_assert(mytemp != NULL);
1927 temp_file_handle = fopen (mytemp, "wt");
1928 GNUNET_assert(temp_file_handle != NULL);
1929 temp_transports = GNUNET_strdup(transports);
1930 blacklist_ctx.temp_file_handle = temp_file_handle;
1931 transport_len = strlen(temp_transports) + 1;
1934 for (i = 0; i < transport_len; i++)
1936 if ((temp_transports[i] == ' ') && (pos == NULL))
1937 continue; /* At start of string (whitespace) */
1938 else if ((temp_transports[i] == ' ') || (temp_transports[i] == '\0')) /* At end of string */
1940 temp_transports[i] = '\0';
1941 blacklist_ctx.transport = pos;
1942 GNUNET_CONTAINER_multihashmap_iterate(pg->peers[pg_iter].blacklisted_peers, &blacklist_file_iterator, &blacklist_ctx);
1944 } /* At beginning of actual string */
1945 else if (pos == NULL)
1947 pos = &temp_transports[i];
1951 GNUNET_free (temp_transports);
1952 fclose(temp_file_handle);
1955 GNUNET_CONFIGURATION_get_value_string(pg->peers[pg_iter].daemon->cfg, "PATHS", "SERVICEHOME", &temp_service_path))
1957 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
1958 _("No `%s' specified in peer configuration in section `%s', cannot copy friends file!\n"),
1961 if (UNLINK (mytemp) != 0)
1962 GNUNET_log_strerror_file (GNUNET_ERROR_TYPE_WARNING, "unlink", mytemp);
1963 GNUNET_free (mytemp);
1967 if (pg->peers[pg_iter].daemon->hostname == NULL) /* Local, just copy the file */
1969 GNUNET_asprintf (&arg, "%s/blacklist", temp_service_path);
1970 pidarr[pg_iter] = GNUNET_OS_start_process (NULL, NULL, "mv",
1971 "mv", mytemp, arg, NULL);
1973 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1974 _("Copying file with command cp %s %s\n"), mytemp, arg);
1979 else /* Remote, scp the file to the correct place */
1981 if (NULL != pg->peers[pg_iter].daemon->username)
1982 GNUNET_asprintf (&arg, "%s@%s:%s/blacklist", pg->peers[pg_iter].daemon->username, pg->peers[pg_iter].daemon->hostname, temp_service_path);
1984 GNUNET_asprintf (&arg, "%s:%s/blacklist", pg->peers[pg_iter].daemon->hostname, temp_service_path);
1985 pidarr[pg_iter] = GNUNET_OS_start_process (NULL, NULL, "scp",
1986 "scp", mytemp, arg, NULL);
1989 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1990 _("Copying file with command scp %s %s\n"), mytemp, arg);
1994 GNUNET_free (temp_service_path);
1995 GNUNET_free (mytemp);
1999 ret = GNUNET_SYSERR;
2000 while ((count < max_wait) && (ret != GNUNET_OK))
2003 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
2006 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2007 _("Checking copy status of file %d\n"), pg_iter);
2009 if (pidarr[pg_iter] != 0) /* Check for already completed! */
2011 if (GNUNET_OS_process_status(pidarr[pg_iter], &type, &return_code) != GNUNET_OK)
2013 ret = GNUNET_SYSERR;
2015 else if ((type != GNUNET_OS_PROCESS_EXITED) || (return_code != 0))
2017 ret = GNUNET_SYSERR;
2021 pidarr[pg_iter] = 0;
2023 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2024 _("File %d copied\n"), pg_iter);
2030 if (ret == GNUNET_SYSERR)
2032 /* FIXME: why sleep here? -CG */
2038 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2039 _("Finished copying all blacklist files!\n"));
2041 GNUNET_free(pidarr);
2047 * Internal notification of a connection, kept so that we can ensure some connections
2048 * happen instead of flooding all testing daemons with requests to connect.
2050 static void internal_connect_notify (void *cls,
2051 const struct GNUNET_PeerIdentity *first,
2052 const struct GNUNET_PeerIdentity *second,
2054 const struct GNUNET_CONFIGURATION_Handle *first_cfg,
2055 const struct GNUNET_CONFIGURATION_Handle *second_cfg,
2056 struct GNUNET_TESTING_Daemon *first_daemon,
2057 struct GNUNET_TESTING_Daemon *second_daemon,
2060 struct GNUNET_TESTING_PeerGroup *pg = cls;
2061 outstanding_connects--;
2063 pg->notify_connection(pg->notify_connection_cls, first, second, distance, first_cfg, second_cfg, first_daemon, second_daemon, emsg);
2068 * Either delay a connection (because there are too many outstanding)
2069 * or schedule it for right now.
2071 * @param cls a connection context
2072 * @param tc the task runtime context
2074 static void schedule_connect(void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
2076 struct ConnectContext *connect_context = cls;
2078 if (tc->reason == GNUNET_SCHEDULER_REASON_SHUTDOWN)
2081 if (outstanding_connects > MAX_OUTSTANDING_CONNECTIONS)
2083 #if VERBOSE_TESTING > 2
2084 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2085 _("Delaying connect, we have too many outstanding connections!\n"));
2087 GNUNET_SCHEDULER_add_delayed(connect_context->pg->sched, GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MILLISECONDS, 100), &schedule_connect, connect_context);
2091 #if VERBOSE_TESTING > 2
2092 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2093 _("Creating connection, outstanding_connections is %d\n"), outstanding_connects);
2095 outstanding_connects++;
2096 GNUNET_TESTING_daemons_connect (connect_context->first,
2097 connect_context->second,
2100 &internal_connect_notify,
2101 connect_context->pg);
2102 GNUNET_free(connect_context);
2108 * Iterator for actually scheduling connections to be created
2109 * between two peers.
2111 * @param cls closure, a GNUNET_TESTING_Daemon
2112 * @param key the key the second Daemon was stored under
2113 * @param value the GNUNET_TESTING_Daemon that the first is to connect to
2115 * @return GNUNET_YES to continue iteration
2118 connect_iterator (void *cls,
2119 const GNUNET_HashCode * key,
2122 struct PeerData *first = cls;
2123 struct GNUNET_TESTING_Daemon *second = value;
2124 struct ConnectContext *connect_context;
2126 connect_context = GNUNET_malloc(sizeof(struct ConnectContext));
2127 connect_context->pg = first->pg;
2128 connect_context->first = first->daemon;
2129 connect_context->second = second;
2130 GNUNET_SCHEDULER_add_now(first->pg->sched, &schedule_connect, connect_context);
2137 * Iterator for copying all entries in the allowed hashmap to the
2140 * @param cls closure, a GNUNET_TESTING_Daemon
2141 * @param key the key the second Daemon was stored under
2142 * @param value the GNUNET_TESTING_Daemon that the first is to connect to
2144 * @return GNUNET_YES to continue iteration
2147 copy_topology_iterator (void *cls,
2148 const GNUNET_HashCode * key,
2151 struct PeerData *first = cls;
2153 GNUNET_assert(GNUNET_OK == GNUNET_CONTAINER_multihashmap_put(first->connect_peers, key, value, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY));
2159 * Make the peers to connect the same as those that are allowed to be
2162 * @param pg the peer group
2165 copy_allowed_topology (struct GNUNET_TESTING_PeerGroup *pg)
2167 unsigned int pg_iter;
2172 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
2174 ret = GNUNET_CONTAINER_multihashmap_iterate(pg->peers[pg_iter].allowed_peers, ©_topology_iterator, &pg->peers[pg_iter]);
2175 if (GNUNET_SYSERR == ret)
2176 return GNUNET_SYSERR;
2178 total = total + ret;
2186 * Connect the topology as specified by the PeerConnection's
2187 * of each peer in the peer group
2189 * @param pg the peer group we are dealing with
2190 * @return the number of connections that will be attempted
2193 connect_topology (struct GNUNET_TESTING_PeerGroup *pg)
2195 unsigned int pg_iter;
2199 struct PeerConnection *connection_iter;
2200 struct ConnectContext *connect_context;
2204 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
2206 ret = GNUNET_CONTAINER_multihashmap_iterate(pg->peers[pg_iter].connect_peers, &connect_iterator, &pg->peers[pg_iter]);
2207 if (GNUNET_SYSERR == ret)
2208 return GNUNET_SYSERR;
2210 total = total + ret;
2214 while (connection_iter != NULL)
2216 connect_context = GNUNET_malloc(sizeof(struct ConnectContext));
2217 connect_context->pg = pg;
2218 connect_context->first = ;
2219 connect_context->second = connection_iter->daemon;
2220 GNUNET_SCHEDULER_add_now(pg->sched, &schedule_connect, connect_context);
2221 connection_iter = connection_iter->next;
2230 * Takes a peer group and creates a topology based on the
2231 * one specified. Creates a topology means generates friend
2232 * files for the peers so they can only connect to those allowed
2233 * by the topology. This will only have an effect once peers
2234 * are started if the FRIENDS_ONLY option is set in the base
2235 * config. Also takes an optional restrict topology which
2236 * disallows connections based on a particular transport
2237 * UNLESS they are specified in the restricted topology.
2239 * @param pg the peer group struct representing the running peers
2240 * @param topology which topology to connect the peers in
2241 * @param restrict_topology allow only direct TCP connections in this topology
2242 * use GNUNET_TESTING_TOPOLOGY_NONE for no restrictions
2243 * @param restrict_transports space delimited list of transports to blacklist
2244 * to create restricted topology
2246 * @return the maximum number of connections were all allowed peers
2247 * connected to each other
2250 GNUNET_TESTING_create_topology (struct GNUNET_TESTING_PeerGroup *pg,
2251 enum GNUNET_TESTING_Topology topology,
2252 enum GNUNET_TESTING_Topology restrict_topology,
2253 char *restrict_transports)
2256 int num_connections;
2257 int unblacklisted_connections;
2259 GNUNET_assert (pg->notify_connection != NULL);
2263 case GNUNET_TESTING_TOPOLOGY_CLIQUE:
2265 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2266 _("Creating clique topology\n"));
2268 num_connections = create_clique (pg, &add_allowed_connections);
2270 case GNUNET_TESTING_TOPOLOGY_SMALL_WORLD_RING:
2272 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2273 _("Creating small world (ring) topology\n"));
2275 num_connections = create_small_world_ring (pg, &add_allowed_connections);
2277 case GNUNET_TESTING_TOPOLOGY_SMALL_WORLD:
2279 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2280 _("Creating small world (2d-torus) topology\n"));
2282 num_connections = create_small_world (pg, &add_allowed_connections);
2284 case GNUNET_TESTING_TOPOLOGY_RING:
2286 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2287 _("Creating ring topology\n"));
2289 num_connections = create_ring (pg, &add_allowed_connections);
2291 case GNUNET_TESTING_TOPOLOGY_2D_TORUS:
2293 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2294 _("Creating 2d torus topology\n"));
2296 num_connections = create_2d_torus (pg, &add_allowed_connections);
2298 case GNUNET_TESTING_TOPOLOGY_ERDOS_RENYI:
2300 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2301 _("Creating Erdos-Renyi topology\n"));
2303 num_connections = create_erdos_renyi (pg, &add_allowed_connections);
2305 case GNUNET_TESTING_TOPOLOGY_INTERNAT:
2307 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2308 _("Creating InterNAT topology\n"));
2310 num_connections = create_nated_internet (pg, &add_allowed_connections);
2312 case GNUNET_TESTING_TOPOLOGY_SCALE_FREE:
2314 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2315 _("Creating Scale Free topology\n"));
2317 num_connections = create_scale_free (pg, &add_allowed_connections);
2319 case GNUNET_TESTING_TOPOLOGY_LINE:
2321 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2322 _("Creating straight line topology\n"));
2324 num_connections = create_line (pg, &add_allowed_connections);
2326 case GNUNET_TESTING_TOPOLOGY_NONE:
2328 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2329 _("Creating no allowed topology (all peers can connect at core level)\n"));
2331 num_connections = 0;
2334 num_connections = 0;
2338 if (num_connections < 0)
2339 return GNUNET_SYSERR;
2341 if (GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno (pg->cfg, "TESTING", "F2F"))
2343 ret = create_and_copy_friend_files(pg);
2344 if (ret != GNUNET_OK)
2347 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2348 _("Failed during friend file copying!\n"));
2350 return GNUNET_SYSERR;
2355 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2356 _("Friend files created/copied successfully!\n"));
2361 /* Use the create clique method to initially set all connections as blacklisted. */
2362 if (restrict_topology != GNUNET_TESTING_TOPOLOGY_NONE)
2363 create_clique (pg, &blacklist_connections);
2364 unblacklisted_connections = 0;
2365 /* Un-blacklist connections as per the topology specified */
2366 switch (restrict_topology)
2368 case GNUNET_TESTING_TOPOLOGY_CLIQUE:
2370 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2371 _("Blacklisting all but clique topology\n"));
2373 unblacklisted_connections = create_clique (pg, &unblacklist_connections);
2375 case GNUNET_TESTING_TOPOLOGY_SMALL_WORLD_RING:
2377 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2378 _("Blacklisting all but small world (ring) topology\n"));
2380 unblacklisted_connections = create_small_world_ring (pg, &unblacklist_connections);
2382 case GNUNET_TESTING_TOPOLOGY_SMALL_WORLD:
2384 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2385 _("Blacklisting all but small world (2d-torus) topology\n"));
2387 unblacklisted_connections = create_small_world (pg, &unblacklist_connections);
2389 case GNUNET_TESTING_TOPOLOGY_RING:
2391 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2392 _("Blacklisting all but ring topology\n"));
2394 unblacklisted_connections = create_ring (pg, &unblacklist_connections);
2396 case GNUNET_TESTING_TOPOLOGY_2D_TORUS:
2398 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2399 _("Blacklisting all but 2d torus topology\n"));
2401 unblacklisted_connections = create_2d_torus (pg, &unblacklist_connections);
2403 case GNUNET_TESTING_TOPOLOGY_ERDOS_RENYI:
2405 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2406 _("Blacklisting all but Erdos-Renyi topology\n"));
2408 unblacklisted_connections = create_erdos_renyi (pg, &unblacklist_connections);
2410 case GNUNET_TESTING_TOPOLOGY_INTERNAT:
2412 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2413 _("Blacklisting all but InterNAT topology\n"));
2415 unblacklisted_connections = create_nated_internet (pg, &unblacklist_connections);
2417 case GNUNET_TESTING_TOPOLOGY_SCALE_FREE:
2419 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2420 _("Blacklisting all but Scale Free topology\n"));
2422 unblacklisted_connections = create_scale_free (pg, &unblacklist_connections);
2424 case GNUNET_TESTING_TOPOLOGY_LINE:
2426 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2427 _("Blacklisting all but straight line topology\n"));
2429 unblacklisted_connections = create_line (pg, &unblacklist_connections);
2431 case GNUNET_TESTING_TOPOLOGY_NONE:
2433 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2434 _("Creating no blacklist topology (all peers can connect at transport level)\n"));
2440 if ((unblacklisted_connections > 0) && (restrict_transports != NULL))
2442 ret = create_and_copy_blacklist_files(pg, restrict_transports);
2443 if (ret != GNUNET_OK)
2446 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2447 _("Failed during blacklist file copying!\n"));
2449 return GNUNET_SYSERR;
2454 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2455 _("Blacklist files created/copied successfully!\n"));
2459 return num_connections;
2462 struct RandomContext
2467 struct GNUNET_TESTING_PeerGroup *pg;
2470 * uid of the first peer
2475 * Peer data for first peer.
2477 struct PeerData *first;
2480 * Random percentage to use
2485 struct MinimumContext
2490 struct GNUNET_TESTING_PeerGroup *pg;
2493 * uid of the first peer
2498 * Peer data for first peer.
2500 struct PeerData *first;
2503 * Number of conns per peer
2505 unsigned int num_to_add;
2508 * Permuted array of all possible connections. Only add the Nth
2509 * peer if it's in the Nth position.
2511 unsigned int *pg_array;
2514 * What number is the current element we are iterating over?
2516 unsigned int current;
2524 struct GNUNET_TESTING_PeerGroup *pg;
2527 * uid of the first peer
2532 * uid of the second peer
2534 uint32_t second_uid;
2537 * Peer data for first peer.
2539 struct PeerData *first;
2542 * Which peer has been chosen as the one to add?
2544 unsigned int chosen;
2547 * What number is the current element we are iterating over?
2549 unsigned int current;
2553 * Iterator for choosing random peers to connect.
2555 * @param cls closure, a RandomContext
2556 * @param key the key the second Daemon was stored under
2557 * @param value the GNUNET_TESTING_Daemon that the first is to connect to
2559 * @return GNUNET_YES to continue iteration
2562 random_connect_iterator (void *cls,
2563 const GNUNET_HashCode * key,
2566 struct RandomContext *random_ctx = cls;
2567 double random_number;
2568 uint32_t second_pos;
2569 GNUNET_HashCode first_hash;
2570 random_number = ((double) GNUNET_CRYPTO_random_u64(GNUNET_CRYPTO_QUALITY_WEAK,
2571 UINT64_MAX)) / ( (double) UINT64_MAX);
2572 if (random_number < random_ctx->percentage)
2574 GNUNET_assert(GNUNET_OK == GNUNET_CONTAINER_multihashmap_put(random_ctx->first->connect_peers_working_set, key, value, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY));
2576 /* Now we have considered this particular connection, remove it from the second peer so it's not double counted */
2577 uid_from_hash(key, &second_pos);
2578 hash_from_uid(random_ctx->first_uid, &first_hash);
2579 GNUNET_assert(random_ctx->pg->total > second_pos);
2580 GNUNET_assert(GNUNET_YES == GNUNET_CONTAINER_multihashmap_remove(random_ctx->pg->peers[second_pos].connect_peers, &first_hash, random_ctx->first->daemon));
2586 * Iterator for adding at least X peers to a peers connection set.
2588 * @param cls closure, MinimumContext
2589 * @param key the key the second Daemon was stored under
2590 * @param value the GNUNET_TESTING_Daemon that the first is to connect to
2592 * @return GNUNET_YES to continue iteration
2595 minimum_connect_iterator (void *cls,
2596 const GNUNET_HashCode * key,
2599 struct MinimumContext *min_ctx = cls;
2600 uint32_t second_pos;
2601 GNUNET_HashCode first_hash;
2604 if (GNUNET_CONTAINER_multihashmap_size(min_ctx->first->connect_peers_working_set) < min_ctx->num_to_add)
2606 for (i = 0; i < min_ctx->num_to_add; i++)
2608 if (min_ctx->pg_array[i] == min_ctx->current)
2610 GNUNET_assert(GNUNET_OK == GNUNET_CONTAINER_multihashmap_put(min_ctx->first->connect_peers_working_set, key, value, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY));
2611 uid_from_hash(key, &second_pos);
2612 hash_from_uid(min_ctx->first_uid, &first_hash);
2613 GNUNET_assert(min_ctx->pg->total > second_pos);
2614 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));
2615 /* Now we have added this particular connection, remove it from the second peer's map so it's not double counted */
2616 GNUNET_assert(GNUNET_YES == GNUNET_CONTAINER_multihashmap_remove(min_ctx->pg->peers[second_pos].connect_peers, &first_hash, min_ctx->first->daemon));
2623 return GNUNET_NO; /* We can stop iterating, we have enough peers! */
2629 * Iterator for adding peers to a connection set based on a depth first search.
2631 * @param cls closure, MinimumContext
2632 * @param key the key the second daemon was stored under
2633 * @param value the GNUNET_TESTING_Daemon that the first is to connect to
2635 * @return GNUNET_YES to continue iteration
2638 dfs_connect_iterator (void *cls,
2639 const GNUNET_HashCode * key,
2642 struct DFSContext *dfs_ctx = cls;
2643 GNUNET_HashCode first_hash;
2645 if (dfs_ctx->current == dfs_ctx->chosen)
2647 GNUNET_assert(GNUNET_OK == GNUNET_CONTAINER_multihashmap_put(dfs_ctx->first->connect_peers_working_set, key, value, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY));
2648 uid_from_hash(key, &dfs_ctx->second_uid);
2649 hash_from_uid(dfs_ctx->first_uid, &first_hash);
2650 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));
2651 GNUNET_assert(GNUNET_YES == GNUNET_CONTAINER_multihashmap_remove(dfs_ctx->pg->peers[dfs_ctx->second_uid].connect_peers, &first_hash, dfs_ctx->first->daemon));
2652 /* Can't remove second from first yet because we are currently iterating, hence the return value in the DFSContext! */
2653 return GNUNET_NO; /* We have found our peer, don't iterate more */
2662 * From the set of connections possible, choose percentage percent of connections
2663 * to actually connect.
2665 * @param pg the peergroup we are dealing with
2666 * @param percentage what percent of total connections to make
2669 choose_random_connections(struct GNUNET_TESTING_PeerGroup *pg, double percentage)
2671 struct RandomContext random_ctx;
2674 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
2676 random_ctx.first_uid = pg_iter;
2677 random_ctx.first = &pg->peers[pg_iter];
2678 random_ctx.percentage = percentage;
2680 pg->peers[pg_iter].connect_peers_working_set = GNUNET_CONTAINER_multihashmap_create(pg->total);
2681 GNUNET_CONTAINER_multihashmap_iterate(pg->peers[pg_iter].connect_peers, &random_connect_iterator, &random_ctx);
2682 /* Now remove the old connections */
2683 GNUNET_CONTAINER_multihashmap_destroy(pg->peers[pg_iter].connect_peers);
2684 /* And replace with the random set */
2685 pg->peers[pg_iter].connect_peers = pg->peers[pg_iter].connect_peers_working_set;
2690 * From the set of connections possible, choose at least num connections per
2693 * @param pg the peergroup we are dealing with
2694 * @param num how many connections at least should each peer have (if possible)?
2697 choose_minimum(struct GNUNET_TESTING_PeerGroup *pg, unsigned int num)
2699 struct MinimumContext minimum_ctx;
2702 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
2704 pg->peers[pg_iter].connect_peers_working_set = GNUNET_CONTAINER_multihashmap_create(num);
2707 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
2709 minimum_ctx.first_uid = pg_iter;
2710 minimum_ctx.pg_array = GNUNET_CRYPTO_random_permute(GNUNET_CRYPTO_QUALITY_WEAK,
2711 GNUNET_CONTAINER_multihashmap_size(pg->peers[pg_iter].connect_peers));
2712 minimum_ctx.first = &pg->peers[pg_iter];
2713 minimum_ctx.pg = pg;
2714 minimum_ctx.num_to_add = num;
2715 minimum_ctx.current = 0;
2716 GNUNET_CONTAINER_multihashmap_iterate(pg->peers[pg_iter].connect_peers,
2717 &minimum_connect_iterator,
2721 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
2723 /* Remove the "old" connections */
2724 GNUNET_CONTAINER_multihashmap_destroy(pg->peers[pg_iter].connect_peers);
2725 /* And replace with the working set */
2726 pg->peers[pg_iter].connect_peers = pg->peers[pg_iter].connect_peers_working_set;
2733 count_workingset_connections(struct GNUNET_TESTING_PeerGroup *pg)
2736 unsigned int pg_iter;
2740 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
2742 count += GNUNET_CONTAINER_multihashmap_size(pg->peers[pg_iter].connect_peers_working_set);
2749 static unsigned int count_allowed_connections(struct GNUNET_TESTING_PeerGroup *pg)
2752 unsigned int pg_iter;
2756 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
2758 count += GNUNET_CONTAINER_multihashmap_size(pg->peers[pg_iter].connect_peers);
2765 * From the set of connections possible, choose at least num connections per
2766 * peer based on depth first traversal of peer connections. If DFS leaves
2767 * peers unconnected, ensure those peers get connections.
2769 * @param pg the peergroup we are dealing with
2770 * @param num how many connections at least should each peer have (if possible)?
2773 perform_dfs (struct GNUNET_TESTING_PeerGroup *pg, unsigned int num)
2775 struct DFSContext dfs_ctx;
2778 uint32_t starting_peer;
2779 uint32_t least_connections;
2780 GNUNET_HashCode second_hash;
2782 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
2784 pg->peers[pg_iter].connect_peers_working_set = GNUNET_CONTAINER_multihashmap_create(num);
2789 while ((count_workingset_connections(pg) < num * pg->total) && (count_allowed_connections(pg) > 0))
2791 if (dfs_count % pg->total == 0) /* Restart the DFS at some weakly connected peer */
2793 least_connections = -1; /* Set to very high number */
2794 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
2796 if (GNUNET_CONTAINER_multihashmap_size(pg->peers[pg_iter].connect_peers_working_set) < least_connections)
2798 starting_peer = pg_iter;
2799 least_connections = GNUNET_CONTAINER_multihashmap_size(pg->peers[pg_iter].connect_peers_working_set);
2804 if (GNUNET_CONTAINER_multihashmap_size(pg->peers[starting_peer].connect_peers) == 0) /* Ensure there is at least one peer left to connect! */
2810 /* Choose a random peer from the chosen peers set of connections to add */
2811 dfs_ctx.chosen = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, GNUNET_CONTAINER_multihashmap_size(pg->peers[starting_peer].connect_peers));
2812 dfs_ctx.first_uid = starting_peer;
2813 dfs_ctx.first = &pg->peers[starting_peer];
2815 dfs_ctx.current = 0;
2817 GNUNET_CONTAINER_multihashmap_iterate(pg->peers[starting_peer].connect_peers, &dfs_connect_iterator, &dfs_ctx);
2818 /* Remove the second from the first, since we will be continuing the search and may encounter the first peer again! */
2819 hash_from_uid(dfs_ctx.second_uid, &second_hash);
2820 GNUNET_assert(GNUNET_YES == GNUNET_CONTAINER_multihashmap_remove(pg->peers[starting_peer].connect_peers, &second_hash, pg->peers[dfs_ctx.second_uid].daemon));
2821 starting_peer = dfs_ctx.second_uid;
2824 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
2826 /* Remove the "old" connections */
2827 GNUNET_CONTAINER_multihashmap_destroy(pg->peers[pg_iter].connect_peers);
2828 /* And replace with the working set */
2829 pg->peers[pg_iter].connect_peers = pg->peers[pg_iter].connect_peers_working_set;
2834 * Internal callback for topology information for a particular peer.
2837 internal_topology_callback(void *cls,
2838 const struct GNUNET_PeerIdentity *peer,
2839 struct GNUNET_TIME_Relative latency, uint32_t distance)
2841 struct CoreContext *core_ctx = cls;
2842 struct TopologyIterateContext *iter_ctx = core_ctx->iter_context;
2844 if (peer == NULL) /* Either finished, or something went wrong */
2846 iter_ctx->completed++;
2847 iter_ctx->connected--;
2848 /* One core context allocated per iteration, must free! */
2849 GNUNET_free(core_ctx);
2853 iter_ctx->topology_cb(iter_ctx->cls, &core_ctx->daemon->id, peer, latency, distance, NULL);
2856 if (iter_ctx->completed == iter_ctx->total)
2858 iter_ctx->topology_cb(iter_ctx->cls, NULL, NULL, GNUNET_TIME_relative_get_zero(), 0, NULL);
2859 /* Once all are done, free the iteration context */
2860 GNUNET_free(iter_ctx);
2866 * Check running topology iteration tasks, if below max start a new one, otherwise
2867 * schedule for some time in the future.
2870 schedule_get_topology(void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
2872 struct CoreContext *core_context = cls;
2873 struct TopologyIterateContext *topology_context = (struct TopologyIterateContext *)core_context->iter_context;
2874 if (tc->reason == GNUNET_SCHEDULER_REASON_SHUTDOWN)
2877 if (topology_context->connected > MAX_OUTSTANDING_CONNECTIONS)
2879 #if VERBOSE_TESTING > 2
2880 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2881 _("Delaying connect, we have too many outstanding connections!\n"));
2883 GNUNET_SCHEDULER_add_delayed(core_context->daemon->sched, GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MILLISECONDS, 100), &schedule_get_topology, core_context);
2887 #if VERBOSE_TESTING > 2
2888 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2889 _("Creating connection, outstanding_connections is %d\n"), outstanding_connects);
2891 topology_context->connected++;
2892 if (GNUNET_OK != GNUNET_CORE_iterate_peers (core_context->daemon->sched, core_context->daemon->cfg, &internal_topology_callback, core_context))
2893 internal_topology_callback(core_context, NULL, GNUNET_TIME_relative_get_zero(), 0);
2899 * Iterate over all (running) peers in the peer group, retrieve
2900 * all connections that each currently has.
2903 GNUNET_TESTING_get_topology (struct GNUNET_TESTING_PeerGroup *pg, GNUNET_TESTING_NotifyTopology cb, void *cls)
2905 struct TopologyIterateContext *topology_context;
2906 struct CoreContext *core_ctx;
2908 unsigned int total_count;
2910 /* Allocate a single topology iteration context */
2911 topology_context = GNUNET_malloc(sizeof(struct TopologyIterateContext));
2912 topology_context->topology_cb = cb;
2913 topology_context->cls = cls;
2915 for (i = 0; i < pg->total; i++)
2917 if (pg->peers[i].daemon->running == GNUNET_YES)
2919 /* Allocate one core context per core we need to connect to */
2920 core_ctx = GNUNET_malloc(sizeof(struct CoreContext));
2921 core_ctx->daemon = pg->peers[i].daemon;
2922 /* Set back pointer to topology iteration context */
2923 core_ctx->iter_context = topology_context;
2924 GNUNET_SCHEDULER_add_now(pg->sched, &schedule_get_topology, core_ctx);
2928 topology_context->total = total_count;
2933 * Callback function to process statistic values.
2934 * This handler is here only really to insert a peer
2935 * identity (or daemon) so the statistics can be uniquely
2936 * tied to a single running peer.
2938 * @param cls closure
2939 * @param subsystem name of subsystem that created the statistic
2940 * @param name the name of the datum
2941 * @param value the current value
2942 * @param is_persistent GNUNET_YES if the value is persistent, GNUNET_NO if not
2943 * @return GNUNET_OK to continue, GNUNET_SYSERR to abort iteration
2945 static int internal_stats_callback (void *cls,
2946 const char *subsystem,
2951 struct StatsCoreContext *core_context = cls;
2952 struct StatsIterateContext *stats_context = (struct StatsIterateContext *)core_context->iter_context;
2954 return stats_context->proc(stats_context->cls, &core_context->daemon->id, subsystem, name, value, is_persistent);
2958 * Internal continuation call for statistics iteration.
2960 * @param cls closure, the CoreContext for this iteration
2961 * @param success whether or not the statistics iterations
2962 * was canceled or not (we don't care)
2964 static void internal_stats_cont (void *cls, int success)
2966 struct StatsCoreContext *core_context = cls;
2967 struct StatsIterateContext *stats_context = (struct StatsIterateContext *)core_context->iter_context;
2969 stats_context->connected--;
2970 stats_context->completed++;
2972 if (stats_context->completed == stats_context->total)
2974 stats_context->cont(stats_context->cls, GNUNET_YES);
2975 GNUNET_free(stats_context);
2978 if (core_context->stats_handle != NULL)
2979 GNUNET_STATISTICS_destroy(core_context->stats_handle, GNUNET_NO);
2981 GNUNET_free(core_context);
2985 * Check running topology iteration tasks, if below max start a new one, otherwise
2986 * schedule for some time in the future.
2989 schedule_get_statistics(void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
2991 struct StatsCoreContext *core_context = cls;
2992 struct StatsIterateContext *stats_context = (struct StatsIterateContext *)core_context->iter_context;
2994 if (tc->reason == GNUNET_SCHEDULER_REASON_SHUTDOWN)
2997 if (stats_context->connected > MAX_OUTSTANDING_CONNECTIONS)
2999 #if VERBOSE_TESTING > 2
3000 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
3001 _("Delaying connect, we have too many outstanding connections!\n"));
3003 GNUNET_SCHEDULER_add_delayed(core_context->daemon->sched, GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MILLISECONDS, 100), &schedule_get_statistics, core_context);
3007 #if VERBOSE_TESTING > 2
3008 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
3009 _("Creating connection, outstanding_connections is %d\n"), outstanding_connects);
3012 stats_context->connected++;
3013 core_context->stats_handle = GNUNET_STATISTICS_create(core_context->daemon->sched, "testing", core_context->daemon->cfg);
3014 if (core_context->stats_handle == NULL)
3016 internal_stats_cont (core_context, GNUNET_NO);
3020 core_context->stats_get_handle = GNUNET_STATISTICS_get(core_context->stats_handle, NULL, NULL, GNUNET_TIME_relative_get_forever(), &internal_stats_cont, &internal_stats_callback, core_context);
3021 if (core_context->stats_get_handle == NULL)
3022 internal_stats_cont (core_context, GNUNET_NO);
3029 * Iterate over all (running) peers in the peer group, retrieve
3030 * all statistics from each.
3033 GNUNET_TESTING_get_statistics (struct GNUNET_TESTING_PeerGroup *pg,
3034 GNUNET_STATISTICS_Callback cont,
3035 GNUNET_TESTING_STATISTICS_Iterator proc, void *cls)
3037 struct StatsIterateContext *stats_context;
3038 struct StatsCoreContext *core_ctx;
3040 unsigned int total_count;
3042 /* Allocate a single stats iteration context */
3043 stats_context = GNUNET_malloc(sizeof(struct StatsIterateContext));
3044 stats_context->cont = cont;
3045 stats_context->proc = proc;
3046 stats_context->cls = cls;
3048 for (i = 0; i < pg->total; i++)
3050 if (pg->peers[i].daemon->running == GNUNET_YES)
3052 /* Allocate one core context per core we need to connect to */
3053 core_ctx = GNUNET_malloc(sizeof(struct StatsCoreContext));
3054 core_ctx->daemon = pg->peers[i].daemon;
3055 /* Set back pointer to topology iteration context */
3056 core_ctx->iter_context = stats_context;
3057 GNUNET_SCHEDULER_add_now(pg->sched, &schedule_get_statistics, core_ctx);
3061 stats_context->total = total_count;
3066 * There are many ways to connect peers that are supported by this function.
3067 * To connect peers in the same topology that was created via the
3068 * GNUNET_TESTING_create_topology, the topology variable must be set to
3069 * GNUNET_TESTING_TOPOLOGY_NONE. If the topology variable is specified,
3070 * a new instance of that topology will be generated and attempted to be
3071 * connected. This could result in some connections being impossible,
3072 * because some topologies are non-deterministic.
3074 * @param pg the peer group struct representing the running peers
3075 * @param topology which topology to connect the peers in
3076 * @param options options for connecting the topology
3077 * @param option_modifier modifier for options that take a parameter
3078 * @return the number of connections that will be attempted, GNUNET_SYSERR on error
3081 GNUNET_TESTING_connect_topology (struct GNUNET_TESTING_PeerGroup *pg,
3082 enum GNUNET_TESTING_Topology topology,
3083 enum GNUNET_TESTING_TopologyOption options,
3084 double option_modifier)
3088 case GNUNET_TESTING_TOPOLOGY_CLIQUE:
3089 #if VERBOSE_TOPOLOGY
3090 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
3091 _("Creating clique CONNECT topology\n"));
3093 create_clique (pg, &add_actual_connections);
3095 case GNUNET_TESTING_TOPOLOGY_SMALL_WORLD_RING:
3096 #if VERBOSE_TOPOLOGY
3097 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
3098 _("Creating small world (ring) CONNECT topology\n"));
3100 create_small_world_ring (pg, &add_actual_connections);
3102 case GNUNET_TESTING_TOPOLOGY_SMALL_WORLD:
3103 #if VERBOSE_TOPOLOGY
3104 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
3105 _("Creating small world (2d-torus) CONNECT topology\n"));
3107 create_small_world (pg, &add_actual_connections);
3109 case GNUNET_TESTING_TOPOLOGY_RING:
3110 #if VERBOSE_TOPOLOGY
3111 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
3112 _("Creating ring CONNECT topology\n"));
3114 create_ring (pg, &add_actual_connections);
3116 case GNUNET_TESTING_TOPOLOGY_2D_TORUS:
3117 #if VERBOSE_TOPOLOGY
3118 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
3119 _("Creating 2d torus CONNECT topology\n"));
3121 create_2d_torus (pg, &add_actual_connections);
3123 case GNUNET_TESTING_TOPOLOGY_ERDOS_RENYI:
3124 #if VERBOSE_TOPOLOGY
3125 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
3126 _("Creating Erdos-Renyi CONNECT topology\n"));
3128 create_erdos_renyi (pg, &add_actual_connections);
3130 case GNUNET_TESTING_TOPOLOGY_INTERNAT:
3131 #if VERBOSE_TOPOLOGY
3132 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
3133 _("Creating InterNAT CONNECT topology\n"));
3135 create_nated_internet (pg, &add_actual_connections);
3137 case GNUNET_TESTING_TOPOLOGY_SCALE_FREE:
3138 #if VERBOSE_TOPOLOGY
3139 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
3140 _("Creating Scale Free CONNECT topology\n"));
3142 create_scale_free (pg, &add_actual_connections);
3144 case GNUNET_TESTING_TOPOLOGY_LINE:
3145 #if VERBOSE_TOPOLOGY
3146 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
3147 _("Creating straight line CONNECT topology\n"));
3149 create_line (pg, &add_actual_connections);
3151 case GNUNET_TESTING_TOPOLOGY_NONE:
3152 #if VERBOSE_TOPOLOGY
3153 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
3154 _("Creating no CONNECT topology\n"));
3156 copy_allowed_topology(pg);
3159 GNUNET_log(GNUNET_ERROR_TYPE_WARNING,
3160 _("Unknown topology specification, can't connect peers!\n"));
3161 return GNUNET_SYSERR;
3166 case GNUNET_TESTING_TOPOLOGY_OPTION_RANDOM:
3167 #if VERBOSE_TOPOLOGY
3168 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
3169 _("Connecting random subset (%'.2f percent) of possible peers\n"), 100 * option_modifier);
3171 choose_random_connections(pg, option_modifier);
3173 case GNUNET_TESTING_TOPOLOGY_OPTION_MINIMUM:
3174 #if VERBOSE_TOPOLOGY
3175 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
3176 _("Connecting a minimum of %u peers each (if possible)\n"), (unsigned int)option_modifier);
3178 choose_minimum(pg, (unsigned int)option_modifier);
3180 case GNUNET_TESTING_TOPOLOGY_OPTION_DFS:
3181 #if VERBOSE_TOPOLOGY
3182 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
3183 _("Using DFS to connect a minimum of %u peers each (if possible)\n"), (unsigned int)option_modifier);
3185 perform_dfs(pg, (int)option_modifier);
3187 case GNUNET_TESTING_TOPOLOGY_OPTION_NONE:
3189 case GNUNET_TESTING_TOPOLOGY_OPTION_ALL:
3195 return connect_topology(pg);
3199 * Callback that is called whenever a hostkey is generated
3200 * for a peer. Call the real callback and decrement the
3201 * starting counter for the peergroup.
3203 * @param cls closure
3204 * @param id identifier for the daemon, NULL on error
3205 * @param d handle for the daemon
3206 * @param emsg error message (NULL on success)
3208 static void internal_hostkey_callback (void *cls,
3209 const struct GNUNET_PeerIdentity *id,
3210 struct GNUNET_TESTING_Daemon *d,
3213 struct InternalStartContext *internal_context = cls;
3214 internal_context->peer->pg->starting--;
3215 internal_context->peer->pg->started++;
3216 if (internal_context->hostkey_callback != NULL)
3217 internal_context->hostkey_callback(internal_context->hostkey_cls, id, d, emsg);
3218 else if (internal_context->peer->pg->started == internal_context->peer->pg->total)
3220 internal_context->peer->pg->started = 0; /* Internal startup may use this counter! */
3221 GNUNET_TESTING_daemons_continue_startup(internal_context->peer->pg);
3226 * Callback that is called whenever a peer has finished starting.
3227 * Call the real callback and decrement the starting counter
3228 * for the peergroup.
3230 * @param cls closure
3231 * @param id identifier for the daemon, NULL on error
3232 * @param d handle for the daemon
3233 * @param emsg error message (NULL on success)
3235 static void internal_startup_callback (void *cls,
3236 const struct GNUNET_PeerIdentity *id,
3237 const struct GNUNET_CONFIGURATION_Handle *cfg,
3238 struct GNUNET_TESTING_Daemon *d,
3241 struct InternalStartContext *internal_context = cls;
3242 internal_context->peer->pg->starting--;
3243 if (internal_context->start_cb != NULL)
3244 internal_context->start_cb(internal_context->start_cb_cls, id, cfg, d, emsg);
3248 internal_continue_startup (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
3250 struct InternalStartContext *internal_context = cls;
3252 if (tc->reason == GNUNET_SCHEDULER_REASON_SHUTDOWN)
3257 if (internal_context->peer->pg->starting < MAX_CONCURRENT_STARTING)
3259 internal_context->peer->pg->starting++;
3260 GNUNET_TESTING_daemon_continue_startup (internal_context->peer->daemon);
3264 GNUNET_SCHEDULER_add_delayed(internal_context->peer->pg->sched, GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MILLISECONDS, 100), &internal_continue_startup, internal_context);
3269 internal_start (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
3271 struct InternalStartContext *internal_context = cls;
3273 if (tc->reason == GNUNET_SCHEDULER_REASON_SHUTDOWN)
3278 if (internal_context->peer->pg->starting < MAX_CONCURRENT_HOSTKEYS)
3280 internal_context->peer->pg->starting++;
3281 internal_context->peer->daemon = GNUNET_TESTING_daemon_start (internal_context->peer->pg->sched,
3282 internal_context->peer->cfg,
3283 internal_context->timeout,
3284 internal_context->hostname,
3285 &internal_hostkey_callback,
3287 &internal_startup_callback,
3292 GNUNET_SCHEDULER_add_delayed(internal_context->peer->pg->sched, GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MILLISECONDS, 100), &internal_start, internal_context);
3297 * Function which continues a peer group starting up
3298 * after successfully generating hostkeys for each peer.
3300 * @param pg the peer group to continue starting
3304 GNUNET_TESTING_daemons_continue_startup(struct GNUNET_TESTING_PeerGroup *pg)
3309 for (i = 0; i < pg->total; i++)
3311 GNUNET_SCHEDULER_add_now (pg->sched, &internal_continue_startup, &pg->peers[i].internal_context);
3312 //GNUNET_TESTING_daemon_continue_startup(pg->peers[i].daemon);
3317 * Start count gnunet instances with the same set of transports and
3318 * applications. The port numbers (any option called "PORT") will be
3319 * adjusted to ensure that no two peers running on the same system
3320 * have the same port(s) in their respective configurations.
3322 * @param sched scheduler to use
3323 * @param cfg configuration template to use
3324 * @param total number of daemons to start
3325 * @param timeout total time allowed for peers to start
3326 * @param hostkey_callback function to call on each peers hostkey generation
3327 * if NULL, peers will be started by this call, if non-null,
3328 * GNUNET_TESTING_daemons_continue_startup must be called after
3329 * successful hostkey generation
3330 * @param hostkey_cls closure for hostkey callback
3331 * @param cb function to call on each daemon that was started
3332 * @param cb_cls closure for cb
3333 * @param connect_callback function to call each time two hosts are connected
3334 * @param connect_callback_cls closure for connect_callback
3335 * @param hostnames linked list of hosts to use to start peers on (NULL to run on localhost only)
3337 * @return NULL on error, otherwise handle to control peer group
3339 struct GNUNET_TESTING_PeerGroup *
3340 GNUNET_TESTING_daemons_start (struct GNUNET_SCHEDULER_Handle *sched,
3341 const struct GNUNET_CONFIGURATION_Handle *cfg,
3343 struct GNUNET_TIME_Relative timeout,
3344 GNUNET_TESTING_NotifyHostkeyCreated hostkey_callback,
3346 GNUNET_TESTING_NotifyDaemonRunning cb,
3348 GNUNET_TESTING_NotifyConnection
3349 connect_callback, void *connect_callback_cls,
3350 const struct GNUNET_TESTING_Host *hostnames)
3352 struct GNUNET_TESTING_PeerGroup *pg;
3353 const struct GNUNET_TESTING_Host *hostpos;
3359 const char *hostname;
3360 char *baseservicehome;
3361 char *newservicehome;
3363 struct GNUNET_CONFIGURATION_Handle *pcfg;
3365 unsigned int hostcnt;
3375 pg = GNUNET_malloc (sizeof (struct GNUNET_TESTING_PeerGroup));
3378 pg->notify_connection = connect_callback;
3379 pg->notify_connection_cls = connect_callback_cls;
3381 pg->max_timeout = GNUNET_TIME_relative_to_absolute(timeout);
3382 pg->peers = GNUNET_malloc (total * sizeof (struct PeerData));
3383 if (NULL != hostnames)
3386 hostpos = hostnames;
3387 while (hostpos != NULL)
3389 hostpos = hostpos->next;
3392 pg->hosts = GNUNET_malloc (off * sizeof (struct HostData));
3395 hostpos = hostnames;
3396 while (hostpos != NULL)
3398 pg->hosts[off].minport = LOW_PORT;
3399 pg->hosts[off++].hostname = GNUNET_strdup(hostpos->hostname);
3400 hostpos = hostpos->next;
3405 GNUNET_free (pg->hosts);
3413 /* skip leading spaces */
3414 while ((0 != *hostnames) && (isspace ( (unsigned char) *hostnames)))
3417 while ('\0' != *rpos)
3419 if (isspace ( (unsigned char) *rpos))
3423 pg->hosts = GNUNET_malloc (off * sizeof (struct HostData));
3425 start = GNUNET_strdup (hostnames);
3427 while ('\0' != *pos)
3429 if (isspace ( (unsigned char) *pos))
3432 if (strlen (start) > 0)
3434 pg->hosts[off].minport = LOW_PORT;
3435 pg->hosts[off++].hostname = start;
3441 if (strlen (start) > 0)
3443 pg->hosts[off].minport = LOW_PORT;
3444 pg->hosts[off++].hostname = start;
3448 GNUNET_free (start);
3449 GNUNET_free (pg->hosts);
3453 minport = 0; /* make gcc happy */
3461 for (off = 0; off < total; off++)
3465 hostname = pg->hosts[off % hostcnt].hostname;
3466 pcfg = make_config (cfg,
3467 &pg->hosts[off % hostcnt].minport,
3474 pcfg = make_config (cfg,
3482 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
3484 ("Could not create configuration for peer number %u on `%s'!\n"),
3485 off, hostname == NULL ? "localhost" : hostname);
3490 GNUNET_CONFIGURATION_get_value_string (pcfg, "PATHS", "SERVICEHOME",
3493 GNUNET_asprintf (&newservicehome,
3494 "%s/%d/", baseservicehome, off);
3495 GNUNET_free (baseservicehome);
3499 tmpdir = getenv ("TMPDIR");
3500 tmpdir = tmpdir ? tmpdir : "/tmp";
3501 GNUNET_asprintf (&newservicehome,
3504 "gnunet-testing-test-test", off);
3506 GNUNET_CONFIGURATION_set_value_string (pcfg,
3508 "SERVICEHOME", newservicehome);
3509 GNUNET_free (newservicehome);
3510 pg->peers[off].cfg = pcfg;
3511 pg->peers[off].allowed_peers = GNUNET_CONTAINER_multihashmap_create(total);
3512 pg->peers[off].connect_peers = GNUNET_CONTAINER_multihashmap_create(total);
3513 pg->peers[off].blacklisted_peers = GNUNET_CONTAINER_multihashmap_create(total);
3514 pg->peers[off].pg = pg;
3516 pg->peers[off].internal_context.peer = &pg->peers[off];
3517 pg->peers[off].internal_context.timeout = timeout;
3518 pg->peers[off].internal_context.hostname = hostname;
3519 pg->peers[off].internal_context.hostkey_callback = hostkey_callback;
3520 pg->peers[off].internal_context.hostkey_cls = hostkey_cls;
3521 pg->peers[off].internal_context.start_cb = cb;
3522 pg->peers[off].internal_context.start_cb_cls = cb_cls;
3524 GNUNET_SCHEDULER_add_now (sched, &internal_start, &pg->peers[off].internal_context);
3531 * Get a daemon by number, so callers don't have to do nasty
3532 * offsetting operation.
3534 struct GNUNET_TESTING_Daemon *
3535 GNUNET_TESTING_daemon_get (struct GNUNET_TESTING_PeerGroup *pg, unsigned int position)
3537 if (position < pg->total)
3538 return pg->peers[position].daemon;
3544 * Get a daemon by peer identity, so callers can
3545 * retrieve the daemon without knowing it's offset.
3547 * @param pg the peer group to retrieve the daemon from
3548 * @param peer_id the peer identity of the daemon to retrieve
3550 * @return the daemon on success, or NULL if no such peer identity is found
3552 struct GNUNET_TESTING_Daemon *
3553 GNUNET_TESTING_daemon_get_by_id (struct GNUNET_TESTING_PeerGroup *pg, struct GNUNET_PeerIdentity *peer_id)
3557 for (i = 0; i < pg->total; i ++)
3559 if (0 == memcmp(&pg->peers[i].daemon->id, peer_id, sizeof(struct GNUNET_PeerIdentity)))
3560 return pg->peers[i].daemon;
3567 * Prototype of a function that will be called when a
3568 * particular operation was completed the testing library.
3570 * @param cls closure (a struct RestartContext)
3571 * @param id id of the peer that was restarted
3572 * @param cfg handle to the configuration of the peer
3573 * @param d handle to the daemon that was restarted
3574 * @param emsg NULL on success
3576 void restart_callback (void *cls,
3577 const struct GNUNET_PeerIdentity *id,
3578 const struct GNUNET_CONFIGURATION_Handle *cfg,
3579 struct GNUNET_TESTING_Daemon *d,
3582 struct RestartContext *restart_context = cls;
3586 restart_context->peers_restarted++;
3590 restart_context->peers_restart_failed++;
3593 if (restart_context->peers_restarted == restart_context->peer_group->total)
3595 restart_context->callback(restart_context->callback_cls, NULL);
3596 GNUNET_free(restart_context);
3598 else if (restart_context->peers_restart_failed + restart_context->peers_restarted == restart_context->peer_group->total)
3600 restart_context->callback(restart_context->callback_cls, "Failed to restart peers!");
3601 GNUNET_free(restart_context);
3607 * Callback for informing us about a successful
3608 * or unsuccessful churn stop call.
3610 * @param cls a ChurnContext
3611 * @param emsg NULL on success, non-NULL on failure
3615 churn_stop_callback (void *cls, const char *emsg)
3617 struct ChurnContext *churn_ctx = cls;
3618 unsigned int total_left;
3619 char *error_message;
3621 error_message = NULL;
3624 GNUNET_log(GNUNET_ERROR_TYPE_WARNING,
3625 "Churn stop callback failed with error `%s'\n", emsg);
3626 churn_ctx->num_failed_stop++;
3630 churn_ctx->num_to_stop--;
3634 GNUNET_log(GNUNET_ERROR_TYPE_WARNING,
3635 "Stopped peer, %d left.\n",
3636 churn_ctx->num_to_stop);
3638 total_left = (churn_ctx->num_to_stop - churn_ctx->num_failed_stop) + (churn_ctx->num_to_start - churn_ctx->num_failed_start);
3640 if (total_left == 0)
3642 if ((churn_ctx->num_failed_stop > 0) || (churn_ctx->num_failed_start > 0))
3644 GNUNET_asprintf(&error_message,
3645 "Churn didn't complete successfully, %u peers failed to start %u peers failed to be stopped!",
3646 churn_ctx->num_failed_start,
3647 churn_ctx->num_failed_stop);
3649 churn_ctx->cb(churn_ctx->cb_cls, error_message);
3650 GNUNET_free_non_null(error_message);
3651 GNUNET_free(churn_ctx);
3656 * Callback for informing us about a successful
3657 * or unsuccessful churn start call.
3659 * @param cls a ChurnContext
3660 * @param id the peer identity of the started peer
3661 * @param cfg the handle to the configuration of the peer
3662 * @param d handle to the daemon for the peer
3663 * @param emsg NULL on success, non-NULL on failure
3667 churn_start_callback (void *cls,
3668 const struct GNUNET_PeerIdentity *id,
3669 const struct GNUNET_CONFIGURATION_Handle *cfg,
3670 struct GNUNET_TESTING_Daemon *d,
3673 struct ChurnContext *churn_ctx = cls;
3674 unsigned int total_left;
3675 char *error_message;
3677 error_message = NULL;
3680 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
3681 "Churn stop callback failed with error `%s'\n",
3683 churn_ctx->num_failed_start++;
3687 churn_ctx->num_to_start--;
3691 GNUNET_log(GNUNET_ERROR_TYPE_WARNING,
3692 "Started peer, %d left.\n",
3693 churn_ctx->num_to_start);
3696 total_left = (churn_ctx->num_to_stop - churn_ctx->num_failed_stop) + (churn_ctx->num_to_start - churn_ctx->num_failed_start);
3698 if (total_left == 0)
3700 if ((churn_ctx->num_failed_stop > 0) || (churn_ctx->num_failed_start > 0))
3701 GNUNET_asprintf(&error_message,
3702 "Churn didn't complete successfully, %u peers failed to start %u peers failed to be stopped!",
3703 churn_ctx->num_failed_start,
3704 churn_ctx->num_failed_stop);
3705 churn_ctx->cb(churn_ctx->cb_cls, error_message);
3706 GNUNET_free_non_null(error_message);
3707 GNUNET_free(churn_ctx);
3713 * Simulate churn by stopping some peers (and possibly
3714 * re-starting others if churn is called multiple times). This
3715 * function can only be used to create leave-join churn (peers "never"
3716 * leave for good). First "voff" random peers that are currently
3717 * online will be taken offline; then "von" random peers that are then
3718 * offline will be put back online. No notifications will be
3719 * generated for any of these operations except for the callback upon
3722 * @param pg handle for the peer group
3723 * @param voff number of peers that should go offline
3724 * @param von number of peers that should come back online;
3725 * must be zero on first call (since "testbed_start"
3726 * always starts all of the peers)
3727 * @param timeout how long to wait for operations to finish before
3729 * @param cb function to call at the end
3730 * @param cb_cls closure for cb
3733 GNUNET_TESTING_daemons_churn (struct GNUNET_TESTING_PeerGroup *pg,
3736 struct GNUNET_TIME_Relative timeout,
3737 GNUNET_TESTING_NotifyCompletion cb,
3740 struct ChurnContext *churn_ctx;
3741 unsigned int running;
3742 unsigned int stopped;
3743 unsigned int total_running;
3744 unsigned int total_stopped;
3746 unsigned int *running_arr;
3747 unsigned int *stopped_arr;
3748 unsigned int *running_permute;
3749 unsigned int *stopped_permute;
3754 if ((von == 0) && (voff == 0)) /* No peers at all? */
3760 for (i = 0; i < pg->total; i++)
3762 if (pg->peers[i].daemon->running == GNUNET_YES)
3764 GNUNET_assert(running != -1);
3769 GNUNET_assert(stopped != -1);
3776 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Trying to stop more peers than are currently running!\n");
3777 cb(cb_cls, "Trying to stop more peers than are currently running!");
3783 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Trying to start more peers than are currently stopped!\n");
3784 cb(cb_cls, "Trying to start more peers than are currently stopped!");
3788 churn_ctx = GNUNET_malloc(sizeof(struct ChurnContext));
3792 running_arr = GNUNET_malloc(running * sizeof(unsigned int));
3796 stopped_arr = GNUNET_malloc(stopped * sizeof(unsigned int));
3798 running_permute = NULL;
3799 stopped_permute = NULL;
3802 running_permute = GNUNET_CRYPTO_random_permute(GNUNET_CRYPTO_QUALITY_WEAK, running);
3804 stopped_permute = GNUNET_CRYPTO_random_permute(GNUNET_CRYPTO_QUALITY_WEAK, stopped);
3806 total_running = running;
3807 total_stopped = stopped;
3811 churn_ctx->num_to_start = von;
3812 churn_ctx->num_to_stop = voff;
3814 churn_ctx->cb_cls = cb_cls;
3816 for (i = 0; i < pg->total; i++)
3818 if (pg->peers[i].daemon->running == GNUNET_YES)
3820 GNUNET_assert((running_arr != NULL) && (total_running > running));
3821 running_arr[running] = i;
3826 GNUNET_assert((stopped_arr != NULL) && (total_stopped > stopped));
3827 stopped_arr[stopped] = i;
3832 GNUNET_assert(running >= voff);
3833 for (i = 0; i < voff; i++)
3836 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Stopping peer %d!\n", running_permute[i]);
3838 GNUNET_assert(running_arr != NULL);
3839 GNUNET_TESTING_daemon_stop (pg->peers[running_arr[running_permute[i]]].daemon,
3841 &churn_stop_callback, churn_ctx,
3842 GNUNET_NO, GNUNET_YES);
3845 GNUNET_assert(stopped >= von);
3846 for (i = 0; i < von; i++)
3849 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Starting up peer %d!\n", stopped_permute[i]);
3851 GNUNET_assert(stopped_arr != NULL);
3852 GNUNET_TESTING_daemon_start_stopped(pg->peers[stopped_arr[stopped_permute[i]]].daemon,
3853 timeout, &churn_start_callback, churn_ctx);
3856 GNUNET_free_non_null(running_arr);
3857 GNUNET_free_non_null(stopped_arr);
3858 GNUNET_free_non_null(running_permute);
3859 GNUNET_free_non_null(stopped_permute);
3864 * Restart all peers in the given group.
3866 * @param pg the handle to the peer group
3867 * @param callback function to call on completion (or failure)
3868 * @param callback_cls closure for the callback function
3871 GNUNET_TESTING_daemons_restart (struct GNUNET_TESTING_PeerGroup *pg,
3872 GNUNET_TESTING_NotifyCompletion callback,
3875 struct RestartContext *restart_context;
3880 restart_context = GNUNET_malloc(sizeof(struct RestartContext));
3881 restart_context->peer_group = pg;
3882 restart_context->peers_restarted = 0;
3883 restart_context->callback = callback;
3884 restart_context->callback_cls = callback_cls;
3886 for (off = 0; off < pg->total; off++)
3888 GNUNET_TESTING_daemon_restart (pg->peers[off].daemon, &restart_callback, restart_context);
3894 * Start or stop an individual peer from the given group.
3896 * @param pg handle to the peer group
3897 * @param offset which peer to start or stop
3898 * @param desired_status GNUNET_YES to have it running, GNUNET_NO to stop it
3899 * @param timeout how long to wait for shutdown
3900 * @param cb function to call at the end
3901 * @param cb_cls closure for cb
3904 GNUNET_TESTING_daemons_vary (struct GNUNET_TESTING_PeerGroup *pg,
3905 unsigned int offset,
3907 struct GNUNET_TIME_Relative timeout,
3908 GNUNET_TESTING_NotifyCompletion cb,
3911 struct ChurnContext *churn_ctx;
3913 if (GNUNET_NO == desired_status)
3915 if (NULL != pg->peers[offset].daemon)
3917 churn_ctx = GNUNET_malloc(sizeof(struct ChurnContext));
3918 churn_ctx->num_to_start = 0;
3919 churn_ctx->num_to_stop = 1;
3921 churn_ctx->cb_cls = cb_cls;
3922 GNUNET_TESTING_daemon_stop(pg->peers[offset].daemon,
3923 timeout, &churn_stop_callback, churn_ctx,
3924 GNUNET_NO, GNUNET_YES);
3927 else if (GNUNET_YES == desired_status)
3929 if (NULL == pg->peers[offset].daemon)
3931 churn_ctx = GNUNET_malloc(sizeof(struct ChurnContext));
3932 churn_ctx->num_to_start = 1;
3933 churn_ctx->num_to_stop = 0;
3935 churn_ctx->cb_cls = cb_cls;
3936 GNUNET_TESTING_daemon_start_stopped(pg->peers[offset].daemon,
3937 timeout, &churn_start_callback, churn_ctx);
3946 * Callback for shutting down peers in a peer group.
3948 * @param cls closure (struct ShutdownContext)
3949 * @param emsg NULL on success
3951 void internal_shutdown_callback (void *cls,
3954 struct ShutdownContext *shutdown_ctx = cls;
3956 shutdown_ctx->outstanding--;
3959 shutdown_ctx->peers_down++;
3963 shutdown_ctx->peers_failed++;
3966 if ((shutdown_ctx->cb != NULL) && (shutdown_ctx->peers_down + shutdown_ctx->peers_failed == shutdown_ctx->total_peers))
3968 if (shutdown_ctx->peers_failed > 0)
3969 shutdown_ctx->cb(shutdown_ctx->cb_cls, "Not all peers successfully shut down!");
3971 shutdown_ctx->cb(shutdown_ctx->cb_cls, NULL);
3972 GNUNET_free(shutdown_ctx);
3977 * Individual shutdown context for a particular peer.
3979 struct PeerShutdownContext
3982 * Pointer to the high level shutdown context.
3984 struct ShutdownContext *shutdown_ctx;
3987 * The daemon handle for the peer to shut down.
3989 struct GNUNET_TESTING_Daemon *daemon;
3993 * Task to rate limit the number of outstanding peer shutdown
3994 * requests. This is necessary for making sure we don't do
3995 * too many ssh connections at once, but is generally nicer
3996 * to any system as well (graduated task starts, as opposed
3997 * to calling gnunet-arm N times all at once).
4000 schedule_shutdown_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
4002 struct PeerShutdownContext *peer_shutdown_ctx = cls;
4003 struct ShutdownContext *shutdown_ctx;
4005 GNUNET_assert(peer_shutdown_ctx != NULL);
4006 shutdown_ctx = peer_shutdown_ctx->shutdown_ctx;
4007 GNUNET_assert(shutdown_ctx != NULL);
4009 if (shutdown_ctx->outstanding > MAX_CONCURRENT_SHUTDOWN)
4010 GNUNET_SCHEDULER_add_delayed(peer_shutdown_ctx->daemon->sched, GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MILLISECONDS, 100), &schedule_shutdown_task, peer_shutdown_ctx);
4013 shutdown_ctx->outstanding++;
4014 GNUNET_TESTING_daemon_stop (peer_shutdown_ctx->daemon, shutdown_ctx->timeout, &internal_shutdown_callback, shutdown_ctx, GNUNET_YES, GNUNET_NO);
4015 GNUNET_free(peer_shutdown_ctx);
4019 * Shutdown all peers started in the given group.
4021 * @param pg handle to the peer group
4022 * @param timeout how long to wait for shutdown
4023 * @param cb callback to notify upon success or failure
4024 * @param cb_cls closure for cb
4027 GNUNET_TESTING_daemons_stop (struct GNUNET_TESTING_PeerGroup *pg,
4028 struct GNUNET_TIME_Relative timeout,
4029 GNUNET_TESTING_NotifyCompletion cb,
4033 struct ShutdownContext *shutdown_ctx;
4034 struct PeerShutdownContext *peer_shutdown_ctx;
4036 GNUNET_assert(pg->total > 0);
4038 shutdown_ctx = GNUNET_malloc(sizeof(struct ShutdownContext));
4039 shutdown_ctx->cb = cb;
4040 shutdown_ctx->cb_cls = cb_cls;
4041 shutdown_ctx->total_peers = pg->total;
4042 shutdown_ctx->timeout = timeout;
4043 /* shtudown_ctx->outstanding = 0; */
4045 for (off = 0; off < pg->total; off++)
4047 GNUNET_assert(NULL != pg->peers[off].daemon);
4048 peer_shutdown_ctx = GNUNET_malloc(sizeof(struct PeerShutdownContext));
4049 peer_shutdown_ctx->daemon = pg->peers[off].daemon;
4050 peer_shutdown_ctx->shutdown_ctx = shutdown_ctx;
4051 GNUNET_SCHEDULER_add_now(pg->peers[off].daemon->sched, &schedule_shutdown_task, peer_shutdown_ctx);
4052 //GNUNET_TESTING_daemon_stop (pg->peers[off].daemon, timeout, shutdown_cb, shutdown_ctx, GNUNET_YES, GNUNET_NO);
4053 if (NULL != pg->peers[off].cfg)
4054 GNUNET_CONFIGURATION_destroy (pg->peers[off].cfg);
4055 if (pg->peers[off].allowed_peers != NULL)
4056 GNUNET_CONTAINER_multihashmap_destroy(pg->peers[off].allowed_peers);
4057 if (pg->peers[off].connect_peers != NULL)
4058 GNUNET_CONTAINER_multihashmap_destroy(pg->peers[off].connect_peers);
4059 if (pg->peers[off].blacklisted_peers != NULL)
4060 GNUNET_CONTAINER_multihashmap_destroy(pg->peers[off].blacklisted_peers);
4062 GNUNET_free (pg->peers);
4063 if (NULL != pg->hosts)
4065 GNUNET_free (pg->hosts[0].hostname);
4066 GNUNET_free (pg->hosts);
4072 /* end of testing_group.c */