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.
10 GNUnet is distributed in the hope that it will be useful, but
11 WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with GNUnet; see the file COPYING. If not, write to the
17 Free Software Foundation, Inc., 59 Temple Place - Suite 330,
18 Boston, MA 02111-1307, USA.
22 * @file testing/testing_group.c
23 * @brief convenience API for writing testcases for GNUnet
24 * @author Nathan Evans
25 * @author Christian Grothoff
28 #include "gnunet_constants.h"
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 VERBOSE_TOPOLOGY GNUNET_NO
37 #define DEBUG_CHURN GNUNET_EXTRA_LOGGING
39 #define USE_START_HELPER GNUNET_YES
43 /* Before connecting peers, send all of the HELLOs */
44 #define USE_SEND_HELLOS GNUNET_NO
46 #define TOPOLOGY_HACK GNUNET_YES
50 * Lowest port used for GNUnet testing. Should be high enough to not
51 * conflict with other applications running on the hosts but be low
52 * enough to not conflict with client-ports (typically starting around
55 #define LOW_PORT 12000
58 * Highest port used for GNUnet testing. Should be low enough to not
59 * conflict with the port range for "local" ports (client apps; see
60 * /proc/sys/net/ipv4/ip_local_port_range on Linux for example).
62 #define HIGH_PORT 56000
64 /* Maximum time to delay connect attempt */
65 #define MAX_CONNECT_DELAY 300
68 * Which list of peers do we need to modify?
72 /** Modify allowed peers */
75 /** Modify connect peers */
78 /** Modify blacklist peers */
81 /** Modify workingset peers */
86 * Prototype of a function called whenever two peers would be connected
87 * in a certain topology.
89 typedef unsigned int (*GNUNET_TESTING_ConnectionProcessor) (struct
90 GNUNET_TESTING_PeerGroup
98 * Context for handling churning a peer group
103 * The peergroup we are dealing with.
105 struct GNUNET_TESTING_PeerGroup *pg;
108 * Name of the service to churn on/off, NULL
109 * to churn entire peer.
114 * Callback used to notify of churning finished
116 GNUNET_TESTING_NotifyCompletion cb;
119 * Closure for callback
124 * Number of peers that still need to be started
126 unsigned int num_to_start;
129 * Number of peers that still need to be stopped
131 unsigned int num_to_stop;
134 * Number of peers that failed to start
136 unsigned int num_failed_start;
139 * Number of peers that failed to stop
141 unsigned int num_failed_stop;
144 struct RestartContext
147 * The group of peers being restarted
149 struct GNUNET_TESTING_PeerGroup *peer_group;
152 * How many peers have been restarted thus far
154 unsigned int peers_restarted;
157 * How many peers got an error when restarting
159 unsigned int peers_restart_failed;
162 * The function to call once all peers have been restarted
164 GNUNET_TESTING_NotifyCompletion callback;
167 * Closure for callback function
173 struct SendHelloContext
176 * Global handle to the peer group.
178 struct GNUNET_TESTING_PeerGroup *pg;
181 * The data about this specific peer.
183 struct PeerData *peer;
186 * The next HELLO that needs sent to this peer.
188 struct PeerConnection *peer_pos;
191 * Are we connected to CORE yet?
193 unsigned int core_ready;
196 * How many attempts should we make for failed connections?
198 unsigned int connect_attempts;
201 * Task for scheduling core connect requests to be sent.
203 GNUNET_SCHEDULER_TaskIdentifier core_connect_task;
206 struct ShutdownContext
208 struct GNUNET_TESTING_PeerGroup *pg;
210 * Total peers to wait for
212 unsigned int total_peers;
215 * Number of peers successfully shut down
217 unsigned int peers_down;
220 * Number of peers failed to shut down
222 unsigned int peers_failed;
225 * Number of peers we have started shutting
226 * down. If too many, wait on them.
228 unsigned int outstanding;
231 * Timeout for shutdown.
233 struct GNUNET_TIME_Relative timeout;
236 * Callback to call when all peers either
237 * shutdown or failed to shutdown
239 GNUNET_TESTING_NotifyCompletion cb;
247 * Should we delete all of the files from the peers?
253 * Individual shutdown context for a particular peer.
255 struct PeerShutdownContext
258 * Pointer to the high level shutdown context.
260 struct ShutdownContext *shutdown_ctx;
263 * The daemon handle for the peer to shut down.
265 struct GNUNET_TESTING_Daemon *daemon;
269 * Individual shutdown context for a particular peer.
271 struct PeerRestartContext
274 * Pointer to the high level restart context.
276 struct ChurnRestartContext *churn_restart_ctx;
279 * The daemon handle for the peer to shut down.
281 struct GNUNET_TESTING_Daemon *daemon;
284 struct ServiceStartContext
286 struct GNUNET_TESTING_PeerGroup *pg;
287 unsigned int remaining;
288 GNUNET_TESTING_NotifyCompletion cb;
289 unsigned int outstanding;
291 struct GNUNET_TIME_Relative timeout;
296 * Individual shutdown context for a particular peer.
298 struct PeerServiceStartContext
301 * Pointer to the high level start context.
303 struct ServiceStartContext *start_ctx;
306 * The daemon handle for the peer to start the service on.
308 struct GNUNET_TESTING_Daemon *daemon;
311 struct CreateTopologyContext
315 * Function to call with number of connections
317 GNUNET_TESTING_NotifyConnections cont;
320 * Closure for connection notification
327 /** Waiting to read number of peers */
330 /** Should find next peer index */
333 /** Should find colon */
336 /** Should read other peer index, space, or endline */
341 struct PeerConnection
346 struct PeerConnection *prev;
351 struct PeerConnection *next;
354 * Index of daemon in pg->peers
361 struct InternalStartContext
364 * Pointer to peerdata
366 struct PeerData *peer;
369 * Timeout for peer startup
371 struct GNUNET_TIME_Relative timeout;
374 * Client callback for hostkey notification
376 GNUNET_TESTING_NotifyHostkeyCreated hostkey_callback;
379 * Closure for hostkey_callback
384 * Client callback for peer start notification
386 GNUNET_TESTING_NotifyDaemonRunning start_cb;
394 * Hostname, where to start the peer
396 const char *hostname;
399 * Username to use when connecting to the
402 const char *username;
405 * Pointer to starting memory location of a hostkey
410 * Port to use for ssh.
416 struct ChurnRestartContext
419 * PeerGroup that we are working with.
421 struct GNUNET_TESTING_PeerGroup *pg;
424 * Number of restarts currently in flight.
426 unsigned int outstanding;
429 * Handle to the underlying churn context.
431 struct ChurnContext *churn_ctx;
434 * How long to allow the operation to take.
436 struct GNUNET_TIME_Relative timeout;
439 struct OutstandingSSH
441 struct OutstandingSSH *next;
443 struct OutstandingSSH *prev;
446 * Number of current ssh connections.
448 uint32_t outstanding;
451 * The hostname of this peer.
453 const char *hostname;
457 * Data we keep per peer.
462 * (Initial) configuration of the host.
463 * (initial because clients could change
464 * it and we would not know about those
467 struct GNUNET_CONFIGURATION_Handle *cfg;
470 * Handle for controlling the daemon.
472 struct GNUNET_TESTING_Daemon *daemon;
475 * The peergroup this peer belongs to.
477 struct GNUNET_TESTING_PeerGroup *pg;
481 * Linked list of allowed peer connections.
483 struct PeerConnection *allowed_peers_head;
486 * Linked list of allowed peer connections.
488 struct PeerConnection *allowed_peers_tail;
491 * Linked list of blacklisted peer connections.
493 struct PeerConnection *blacklisted_peers_head;
496 * Linked list of blacklisted peer connections.
498 struct PeerConnection *blacklisted_peers_tail;
501 * Linked list of connect peer connections.
503 struct PeerConnection *connect_peers_head;
506 * Linked list of connect peer connections.
508 struct PeerConnection *connect_peers_tail;
511 * Linked list of connect peer connections.
513 struct PeerConnection *connect_peers_working_set_head;
516 * Linked list of connect peer connections.
518 struct PeerConnection *connect_peers_working_set_tail;
522 * Hash map of allowed peer connections (F2F created topology)
524 struct GNUNET_CONTAINER_MultiHashMap *allowed_peers;
527 * Hash map of blacklisted peers
529 struct GNUNET_CONTAINER_MultiHashMap *blacklisted_peers;
532 * Hash map of peer connections
534 struct GNUNET_CONTAINER_MultiHashMap *connect_peers;
537 * Temporary hash map of peer connections
539 struct GNUNET_CONTAINER_MultiHashMap *connect_peers_working_set;
543 * Temporary variable for topology creation, should be reset before
544 * creating any topology so the count is valid once finished.
549 * Context to keep track of peers being started, to
550 * stagger hostkey generation and peer startup.
552 struct InternalStartContext internal_context;
555 * Task ID for the queued internal_continue_startup task
557 GNUNET_SCHEDULER_TaskIdentifier startup_task;
562 * Linked list of per-host data.
572 * SSH username to use when connecting to this host.
577 * SSH port to use when connecting to this host.
582 * Lowest port that we have not yet used
588 struct TopologyIterateContext
591 * The peergroup we are working with.
593 struct GNUNET_TESTING_PeerGroup *pg;
596 * Callback for notifying of two connected peers.
598 GNUNET_TESTING_NotifyTopology topology_cb;
601 * Closure for topology_cb
606 * Number of peers currently connected to.
608 unsigned int connected;
611 * Number of peers we have finished iterating.
613 unsigned int completed;
616 * Number of peers total.
621 struct StatsIterateContext
624 * The peergroup that we are dealing with.
626 struct GNUNET_TESTING_PeerGroup *pg;
629 * Continuation to call once all stats information has been retrieved.
631 GNUNET_STATISTICS_Callback cont;
634 * Proc function to call on each value received.
636 GNUNET_TESTING_STATISTICS_Iterator proc;
639 * Closure for topology_cb
644 * Number of peers currently connected to.
646 unsigned int connected;
649 * Number of peers we have finished iterating.
651 unsigned int completed;
654 * Number of peers total.
662 struct GNUNET_TESTING_Daemon *daemon;
665 struct StatsCoreContext
668 struct GNUNET_TESTING_Daemon *daemon;
670 * Handle to the statistics service.
672 struct GNUNET_STATISTICS_Handle *stats_handle;
675 * Handle for getting statistics.
677 struct GNUNET_STATISTICS_GetHandle *stats_get_handle;
680 struct ConnectTopologyContext
683 * How many connections are left to create.
685 unsigned int remaining_connections;
688 * Handle to group of peers.
690 struct GNUNET_TESTING_PeerGroup *pg;
693 * How long to try this connection before timing out.
695 struct GNUNET_TIME_Relative connect_timeout;
698 * How many times to retry connecting the two peers.
700 unsigned int connect_attempts;
703 * Temp value set for each iteration.
705 //struct PeerData *first;
708 * Notification that all peers are connected.
710 GNUNET_TESTING_NotifyCompletion notify_connections_done;
713 * Closure for notify.
718 struct ConnectContext;
721 * Handle to a group of GNUnet peers.
723 struct GNUNET_TESTING_PeerGroup
726 * Configuration template.
728 const struct GNUNET_CONFIGURATION_Handle *cfg;
730 struct ConnectContext *cc_head;
732 struct ConnectContext *cc_tail;
735 * Function to call on each started daemon.
737 //GNUNET_TESTING_NotifyDaemonRunning cb;
745 * Function to call on each topology connection created
747 GNUNET_TESTING_NotifyConnection notify_connection;
750 * Callback for notify_connection
752 void *notify_connection_cls;
755 * Array of information about hosts.
757 struct HostData *hosts;
760 * Number of hosts (size of HostData)
762 unsigned int num_hosts;
765 * Array of "total" peers.
767 struct PeerData *peers;
770 * Number of peers in this group.
775 * At what time should we fail the peer startup process?
777 struct GNUNET_TIME_Absolute max_timeout;
780 * How many peers are being started right now?
782 unsigned int starting;
785 * How many peers have already been started?
787 unsigned int started;
790 * Number of possible connections to peers
793 unsigned int max_outstanding_connections;
796 * Number of ssh connections to peers (max).
798 unsigned int max_concurrent_ssh;
801 * Number of connects we are waiting on, allows us to rate limit
804 unsigned int outstanding_connects;
807 * Number of HELLOs we have yet to send.
809 unsigned int remaining_hellos;
812 * How many connects have already been scheduled?
814 unsigned int total_connects_scheduled;
817 * Hostkeys loaded from a file.
822 * Head of DLL to keep track of the number of outstanding
823 * ssh connections per peer.
825 struct OutstandingSSH *ssh_head;
828 * Tail of DLL to keep track of the number of outstanding
829 * ssh connections per peer.
831 struct OutstandingSSH *ssh_tail;
834 * Stop scheduling peers connecting.
836 unsigned int stop_connects;
839 * Connection context for peer group.
841 struct ConnectTopologyContext ct_ctx;
847 * The altered configuration.
849 struct GNUNET_CONFIGURATION_Handle *ret;
852 * The original configuration to alter.
854 const struct GNUNET_CONFIGURATION_Handle *orig;
857 * The hostname that this peer will run on.
859 const char *hostname;
862 * The next possible port to assign.
867 * Unique number for unix domain sockets.
872 * Unique number for this peer/host to offset
873 * things that are grouped by host.
878 struct ConnectContext
881 struct ConnectContext *next;
883 struct ConnectContext *prev;
886 * Index of peer to connect second to.
888 uint32_t first_index;
891 * Index of peer to connect first to.
893 uint32_t second_index;
896 * Task associated with the attempt to connect.
898 GNUNET_SCHEDULER_TaskIdentifier task;
901 * Context in 'testing.c', to cancel connection attempt.
903 struct GNUNET_TESTING_ConnectContext *cc;
906 * Higher level topology connection context.
908 struct ConnectTopologyContext *ct_ctx;
911 * Whether this connection has been accounted for in the schedule_connect call.
916 struct UnblacklistContext
921 struct GNUNET_TESTING_PeerGroup *pg;
924 * uid of the first peer
934 struct GNUNET_TESTING_PeerGroup *pg;
937 * uid of the first peer
942 * Peer data for first peer.
944 struct PeerData *first;
947 * Random percentage to use
952 struct MinimumContext
957 struct GNUNET_TESTING_PeerGroup *pg;
960 * uid of the first peer
965 * Peer data for first peer.
967 struct PeerData *first;
970 * Number of conns per peer
972 unsigned int num_to_add;
975 * Permuted array of all possible connections. Only add the Nth
976 * peer if it's in the Nth position.
978 unsigned int *pg_array;
981 * What number is the current element we are iterating over?
983 unsigned int current;
991 struct GNUNET_TESTING_PeerGroup *pg;
994 * uid of the first peer
999 * uid of the second peer
1001 uint32_t second_uid;
1004 * Peer data for first peer.
1006 struct PeerData *first;
1009 * Which peer has been chosen as the one to add?
1011 unsigned int chosen;
1014 * What number is the current element we are iterating over?
1016 unsigned int current;
1020 * Simple struct to keep track of progress, and print a
1021 * nice little percentage meter for long running tasks.
1023 struct ProgressMeter
1027 unsigned int modnum;
1029 unsigned int dotnum;
1031 unsigned int completed;
1035 char *startup_string;
1040 * Convert unique ID to hash code.
1042 * @param uid unique ID to convert
1043 * @param hash set to uid (extended with zeros)
1046 hash_from_uid (uint32_t uid, GNUNET_HashCode * hash)
1048 memset (hash, 0, sizeof (GNUNET_HashCode));
1049 *((uint32_t *) hash) = uid;
1053 * Convert hash code to unique ID.
1055 * @param uid unique ID to convert
1056 * @param hash set to uid (extended with zeros)
1059 uid_from_hash (const GNUNET_HashCode * hash, uint32_t * uid)
1061 memcpy (uid, hash, sizeof (uint32_t));
1066 static struct GNUNET_CORE_MessageHandler no_handlers[] = {
1072 * Create a meter to keep track of the progress of some task.
1074 * @param total the total number of items to complete
1075 * @param start_string a string to prefix the meter with (if printing)
1076 * @param print GNUNET_YES to print the meter, GNUNET_NO to count
1079 * @return the progress meter
1081 static struct ProgressMeter *
1082 create_meter (unsigned int total, char *start_string, int print)
1084 struct ProgressMeter *ret;
1086 ret = GNUNET_malloc (sizeof (struct ProgressMeter));
1089 ret->modnum = total / 4;
1090 if (ret->modnum == 0) /* Divide by zero check */
1092 ret->dotnum = (total / 50) + 1;
1093 if (start_string != NULL)
1094 ret->startup_string = GNUNET_strdup (start_string);
1096 ret->startup_string = GNUNET_strdup ("");
1102 * Update progress meter (increment by one).
1104 * @param meter the meter to update and print info for
1106 * @return GNUNET_YES if called the total requested,
1107 * GNUNET_NO if more items expected
1110 update_meter (struct ProgressMeter *meter)
1112 if (meter->print == GNUNET_YES)
1114 if (meter->completed % meter->modnum == 0)
1116 if (meter->completed == 0)
1118 FPRINTF (stdout, "%sProgress: [0%%", meter->startup_string);
1121 FPRINTF (stdout, "%d%%",
1122 (int) (((float) meter->completed / meter->total) * 100));
1124 else if (meter->completed % meter->dotnum == 0)
1125 FPRINTF (stdout, "%s", ".");
1127 if (meter->completed + 1 == meter->total)
1128 FPRINTF (stdout, "%d%%]\n", 100);
1133 if (meter->completed == meter->total)
1135 if (meter->completed > meter->total)
1136 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Progress meter overflow!!\n");
1141 * Reset progress meter.
1143 * @param meter the meter to reset
1145 * @return GNUNET_YES if meter reset,
1146 * GNUNET_SYSERR on error
1149 reset_meter (struct ProgressMeter *meter)
1152 return GNUNET_SYSERR;
1154 meter->completed = 0;
1159 * Release resources for meter
1161 * @param meter the meter to free
1164 free_meter (struct ProgressMeter *meter)
1166 GNUNET_free_non_null (meter->startup_string);
1167 GNUNET_free (meter);
1171 * Get a topology from a string input.
1173 * @param topology where to write the retrieved topology
1174 * @param topology_string The string to attempt to
1175 * get a configuration value from
1176 * @return GNUNET_YES if topology string matched a
1177 * known topology, GNUNET_NO if not
1180 GNUNET_TESTING_topology_get (enum GNUNET_TESTING_Topology *topology,
1181 const char *topology_string)
1184 * Strings representing topologies in enum
1186 static const char *topology_strings[] = {
1188 * A clique (everyone connected to everyone else).
1193 * Small-world network (2d torus plus random links).
1198 * Small-world network (ring plus random links).
1218 * Certain percentage of peers are unable to communicate directly
1219 * replicating NAT conditions
1224 * Scale free topology.
1229 * Straight line topology.
1234 * All peers are disconnected.
1239 * Read the topology from a file.
1248 if (topology_string == NULL)
1250 while (topology_strings[curr] != NULL)
1252 if (strcasecmp (topology_strings[curr], topology_string) == 0)
1259 *topology = GNUNET_TESTING_TOPOLOGY_NONE;
1264 * Get connect topology option from string input.
1266 * @param topology_option where to write the retrieved topology
1267 * @param topology_string The string to attempt to
1268 * get a configuration value from
1269 * @return GNUNET_YES if string matched a known
1270 * topology option, GNUNET_NO if not
1273 GNUNET_TESTING_topology_option_get (enum GNUNET_TESTING_TopologyOption
1275 const char *topology_string)
1278 * Options for connecting a topology as strings.
1280 static const char *topology_option_strings[] = {
1282 * Try to connect all peers specified in the topology.
1287 * Choose a random subset of connections to create.
1289 "CONNECT_RANDOM_SUBSET",
1292 * Create at least X connections for each peer.
1297 * Using a depth first search, create one connection
1298 * per peer. If any are missed (graph disconnected)
1299 * start over at those peers until all have at least one
1305 * Find the N closest peers to each allowed peer in the
1306 * topology and make sure a connection to those peers
1307 * exists in the connect topology.
1312 * No options specified.
1320 if (topology_string == NULL)
1322 while (NULL != topology_option_strings[curr])
1324 if (strcasecmp (topology_option_strings[curr], topology_string) == 0)
1326 *topology_option = curr;
1331 *topology_option = GNUNET_TESTING_TOPOLOGY_OPTION_NONE;
1336 * Function to iterate over options. Copies
1337 * the options to the target configuration,
1338 * updating PORT values as needed.
1340 * @param cls closure
1341 * @param section name of the section
1342 * @param option name of the option
1343 * @param value value of the option
1346 update_config (void *cls, const char *section, const char *option,
1349 struct UpdateContext *ctx = cls;
1353 char *single_variable;
1354 char *per_host_variable;
1355 unsigned long long num_per_host;
1357 GNUNET_asprintf (&single_variable, "single_%s_per_host", section);
1358 GNUNET_asprintf (&per_host_variable, "num_%s_per_host", section);
1360 if ((0 == strcmp (option, "PORT")) && (1 == SSCANF (value, "%u", &ival)))
1364 GNUNET_CONFIGURATION_get_value_yesno (ctx->orig, "testing",
1367 GNUNET_snprintf (cval, sizeof (cval), "%u", ctx->nport++);
1370 else if ((ival != 0) &&
1372 GNUNET_CONFIGURATION_get_value_yesno (ctx->orig, "testing",
1373 single_variable)) &&
1374 GNUNET_CONFIGURATION_get_value_number (ctx->orig, "testing",
1378 GNUNET_snprintf (cval, sizeof (cval), "%u",
1379 ival + ctx->fdnum % num_per_host);
1383 /* FIXME: REMOVE FOREVER HACK HACK HACK */
1384 if (0 == strcasecmp (section, "transport-tcp"))
1385 GNUNET_CONFIGURATION_set_value_string (ctx->ret, section,
1386 "ADVERTISED_PORT", value);
1389 if (0 == strcmp (option, "UNIXPATH"))
1392 GNUNET_CONFIGURATION_get_value_yesno (ctx->orig, "testing",
1395 GNUNET_snprintf (uval, sizeof (uval), "/tmp/test-service-%s-%u", section,
1399 else if ((GNUNET_YES ==
1400 GNUNET_CONFIGURATION_get_value_number (ctx->orig, "testing",
1406 GNUNET_snprintf (uval, sizeof (uval), "/tmp/test-service-%s-%u", section,
1407 ctx->fdnum % num_per_host);
1412 if ((0 == strcmp (option, "HOSTNAME")) && (ctx->hostname != NULL))
1414 value = ctx->hostname;
1416 GNUNET_free (single_variable);
1417 GNUNET_free (per_host_variable);
1418 GNUNET_CONFIGURATION_set_value_string (ctx->ret, section, option, value);
1422 * Create a new configuration using the given configuration
1423 * as a template; however, each PORT in the existing cfg
1424 * must be renumbered by incrementing "*port". If we run
1425 * out of "*port" numbers, return NULL.
1427 * @param cfg template configuration
1428 * @param off the current peer offset
1429 * @param port port numbers to use, update to reflect
1430 * port numbers that were used
1431 * @param upnum number to make unix domain socket names unique
1432 * @param hostname hostname of the controlling host, to allow control connections from
1433 * @param fdnum number used to offset the unix domain socket for grouped processes
1434 * (such as statistics or peerinfo, which can be shared among others)
1436 * @return new configuration, NULL on error
1438 struct GNUNET_CONFIGURATION_Handle *
1439 GNUNET_TESTING_create_cfg (const struct GNUNET_CONFIGURATION_Handle *cfg, uint32_t off,
1440 uint16_t * port, uint32_t * upnum, const char *hostname,
1443 struct UpdateContext uc;
1446 char *allowed_hosts;
1447 unsigned long long skew_variance;
1448 unsigned long long skew_offset;
1449 long long actual_offset;
1455 uc.ret = GNUNET_CONFIGURATION_create ();
1456 uc.hostname = hostname;
1459 GNUNET_CONFIGURATION_iterate (cfg, &update_config, &uc);
1460 if (uc.nport >= HIGH_PORT)
1463 GNUNET_CONFIGURATION_destroy (uc.ret);
1468 GNUNET_CONFIGURATION_get_value_number (cfg, "testing", "skew_variance",
1470 (skew_variance > 0))
1473 GNUNET_CRYPTO_random_u64 (GNUNET_CRYPTO_QUALITY_WEAK,
1476 skew_offset - GNUNET_CRYPTO_random_u64 (GNUNET_CRYPTO_QUALITY_WEAK,
1478 /* Min is -skew_variance, Max is skew_variance */
1479 skew_offset = skew_variance + actual_offset; /* Normal distribution around 0 */
1480 GNUNET_CONFIGURATION_set_value_number (uc.ret, "testing", "skew_offset",
1484 if (GNUNET_CONFIGURATION_get_value_string
1485 (cfg, "testing", "control_host", &control_host) == GNUNET_OK)
1487 if (hostname != NULL)
1488 GNUNET_asprintf (&allowed_hosts, "%s; 127.0.0.1; %s;", control_host,
1491 GNUNET_asprintf (&allowed_hosts, "%s; 127.0.0.1;", control_host);
1493 GNUNET_CONFIGURATION_set_value_string (uc.ret, "core", "ACCEPT_FROM",
1496 GNUNET_CONFIGURATION_set_value_string (uc.ret, "nse", "ACCEPT_FROM",
1499 GNUNET_CONFIGURATION_set_value_string (uc.ret, "transport", "ACCEPT_FROM",
1501 GNUNET_CONFIGURATION_set_value_string (uc.ret, "dht", "ACCEPT_FROM",
1503 GNUNET_CONFIGURATION_set_value_string (uc.ret, "statistics", "ACCEPT_FROM",
1506 GNUNET_CONFIGURATION_set_value_string (uc.ret, "core", "UNIXPATH", "");
1507 GNUNET_CONFIGURATION_set_value_string (uc.ret, "transport", "UNIXPATH", "");
1508 GNUNET_CONFIGURATION_set_value_string (uc.ret, "dht", "UNIXPATH", "");
1509 GNUNET_CONFIGURATION_set_value_string (uc.ret, "statistics", "UNIXPATH",
1511 GNUNET_CONFIGURATION_set_value_string (uc.ret, "nse", "UNIXPATH", "");
1513 GNUNET_CONFIGURATION_set_value_string (uc.ret, "transport-tcp",
1514 "USE_LOCALADDR", "YES");
1515 GNUNET_CONFIGURATION_set_value_string (uc.ret, "transport-udp",
1516 "USE_LOCALADDR", "YES");
1517 GNUNET_free_non_null (control_host);
1518 GNUNET_free (allowed_hosts);
1521 /* arm needs to know to allow connections from the host on which it is running,
1522 * otherwise gnunet-arm is unable to connect to it in some instances */
1523 if (hostname != NULL)
1525 GNUNET_asprintf (&allowed_hosts, "%s; 127.0.0.1;", hostname);
1526 GNUNET_CONFIGURATION_set_value_string (uc.ret, "nat", "BINDTO", hostname);
1527 GNUNET_CONFIGURATION_set_value_string (uc.ret, "nat", "INTERNAL_ADDRESS",
1529 GNUNET_CONFIGURATION_set_value_string (uc.ret, "nat", "EXTERNAL_ADDRESS",
1531 GNUNET_CONFIGURATION_set_value_string (uc.ret, "disablev6", "BINDTO",
1533 GNUNET_CONFIGURATION_set_value_string (uc.ret, "transport-tcp",
1534 "USE_LOCALADDR", "YES");
1535 GNUNET_CONFIGURATION_set_value_string (uc.ret, "transport-udp",
1536 "USE_LOCALADDR", "YES");
1537 GNUNET_CONFIGURATION_set_value_string (uc.ret, "arm", "ACCEPT_FROM",
1539 GNUNET_free (allowed_hosts);
1544 GNUNET_CONFIGURATION_set_value_string (uc.ret, "transport-tcp",
1545 "USE_LOCALADDR", "YES");
1546 GNUNET_CONFIGURATION_set_value_string (uc.ret, "transport-udp",
1547 "USE_LOCALADDR", "YES");
1548 GNUNET_CONFIGURATION_set_value_string (uc.ret, "nat", "BINDTO",
1550 GNUNET_CONFIGURATION_set_value_string (uc.ret, "nat", "INTERNAL_ADDRESS",
1552 GNUNET_CONFIGURATION_set_value_string (uc.ret, "nat", "EXTERNAL_ADDRESS",
1554 GNUNET_CONFIGURATION_set_value_string (uc.ret, "nat", "disablev6",
1558 *port = (uint16_t) uc.nport;
1566 * Remove entries from the peer connection list
1568 * @param pg the peer group we are working with
1569 * @param first index of the first peer
1570 * @param second index of the second peer
1571 * @param list the peer list to use
1572 * @param check UNUSED
1574 * @return the number of connections added (can be 0, 1 or 2)
1578 remove_connections (struct GNUNET_TESTING_PeerGroup *pg, unsigned int first,
1579 unsigned int second, enum PeerLists list,
1585 struct PeerConnection **first_list;
1586 struct PeerConnection **second_list;
1587 struct PeerConnection *first_iter;
1588 struct PeerConnection *second_iter;
1589 struct PeerConnection **first_tail;
1590 struct PeerConnection **second_tail;
1593 GNUNET_HashCode hash_first;
1594 GNUNET_HashCode hash_second;
1596 hash_from_uid (first, &hash_first);
1597 hash_from_uid (second, &hash_second);
1605 first_list = &pg->peers[first].allowed_peers_head;
1606 second_list = &pg->peers[second].allowed_peers_head;
1607 first_tail = &pg->peers[first].allowed_peers_tail;
1608 second_tail = &pg->peers[second].allowed_peers_tail;
1611 first_list = &pg->peers[first].connect_peers_head;
1612 second_list = &pg->peers[second].connect_peers_head;
1613 first_tail = &pg->peers[first].connect_peers_tail;
1614 second_tail = &pg->peers[second].connect_peers_tail;
1617 first_list = &pg->peers[first].blacklisted_peers_head;
1618 second_list = &pg->peers[second].blacklisted_peers_head;
1619 first_tail = &pg->peers[first].blacklisted_peers_tail;
1620 second_tail = &pg->peers[second].blacklisted_peers_tail;
1623 first_list = &pg->peers[first].connect_peers_working_set_head;
1624 second_list = &pg->peers[second].connect_peers_working_set_head;
1625 first_tail = &pg->peers[first].connect_peers_working_set_tail;
1626 second_tail = &pg->peers[second].connect_peers_working_set_tail;
1633 first_iter = *first_list;
1634 while (first_iter != NULL)
1636 if (first_iter->index == second)
1638 GNUNET_CONTAINER_DLL_remove (*first_list, *first_tail, first_iter);
1639 GNUNET_free (first_iter);
1643 first_iter = first_iter->next;
1646 second_iter = *second_list;
1647 while (second_iter != NULL)
1649 if (second_iter->index == first)
1651 GNUNET_CONTAINER_DLL_remove (*second_list, *second_tail, second_iter);
1652 GNUNET_free (second_iter);
1656 second_iter = second_iter->next;
1660 GNUNET_CONTAINER_multihashmap_contains (pg->
1661 peers[first].blacklisted_peers,
1664 GNUNET_CONTAINER_multihashmap_remove_all (pg->
1665 peers[first].blacklisted_peers,
1670 GNUNET_CONTAINER_multihashmap_contains (pg->
1671 peers[second].blacklisted_peers,
1674 GNUNET_CONTAINER_multihashmap_remove_all (pg->
1675 peers[second].blacklisted_peers,
1684 * Add entries to the some list
1686 * @param pg the peer group we are working with
1687 * @param first index of the first peer
1688 * @param second index of the second peer
1689 * @param list the list type that we should modify
1690 * @param check GNUNET_YES to check lists before adding
1691 * GNUNET_NO to force add
1693 * @return the number of connections added (can be 0, 1 or 2)
1697 add_connections (struct GNUNET_TESTING_PeerGroup *pg, unsigned int first,
1698 unsigned int second, enum PeerLists list, unsigned int check)
1704 struct PeerConnection **first_list;
1705 struct PeerConnection **second_list;
1706 struct PeerConnection *first_iter;
1707 struct PeerConnection *second_iter;
1708 struct PeerConnection *new_first;
1709 struct PeerConnection *new_second;
1710 struct PeerConnection **first_tail;
1711 struct PeerConnection **second_tail;
1716 first_list = &pg->peers[first].allowed_peers_head;
1717 second_list = &pg->peers[second].allowed_peers_head;
1718 first_tail = &pg->peers[first].allowed_peers_tail;
1719 second_tail = &pg->peers[second].allowed_peers_tail;
1722 first_list = &pg->peers[first].connect_peers_head;
1723 second_list = &pg->peers[second].connect_peers_head;
1724 first_tail = &pg->peers[first].connect_peers_tail;
1725 second_tail = &pg->peers[second].connect_peers_tail;
1728 first_list = &pg->peers[first].blacklisted_peers_head;
1729 second_list = &pg->peers[second].blacklisted_peers_head;
1730 first_tail = &pg->peers[first].blacklisted_peers_tail;
1731 second_tail = &pg->peers[second].blacklisted_peers_tail;
1734 first_list = &pg->peers[first].connect_peers_working_set_head;
1735 second_list = &pg->peers[second].connect_peers_working_set_head;
1736 first_tail = &pg->peers[first].connect_peers_working_set_tail;
1737 second_tail = &pg->peers[second].connect_peers_working_set_tail;
1744 add_first = GNUNET_YES;
1745 add_second = GNUNET_YES;
1747 if (check == GNUNET_YES)
1749 first_iter = *first_list;
1750 while (first_iter != NULL)
1752 if (first_iter->index == second)
1754 add_first = GNUNET_NO;
1757 first_iter = first_iter->next;
1760 second_iter = *second_list;
1761 while (second_iter != NULL)
1763 if (second_iter->index == first)
1765 add_second = GNUNET_NO;
1768 second_iter = second_iter->next;
1775 new_first = GNUNET_malloc (sizeof (struct PeerConnection));
1776 new_first->index = second;
1777 GNUNET_CONTAINER_DLL_insert (*first_list, *first_tail, new_first);
1778 pg->peers[first].num_connections++;
1784 new_second = GNUNET_malloc (sizeof (struct PeerConnection));
1785 new_second->index = first;
1786 GNUNET_CONTAINER_DLL_insert (*second_list, *second_tail, new_second);
1787 pg->peers[second].num_connections++;
1795 * Scale free network construction as described in:
1797 * "Emergence of Scaling in Random Networks." Science 286, 509-512, 1999.
1799 * Start with a network of "one" peer, then progressively add
1800 * peers up to the total number. At each step, iterate over
1801 * all possible peers and connect new peer based on number of
1802 * existing connections of the target peer.
1804 * @param pg the peer group we are dealing with
1805 * @param proc the connection processor to use
1806 * @param list the peer list to use
1808 * @return the number of connections created
1811 create_scale_free (struct GNUNET_TESTING_PeerGroup *pg,
1812 GNUNET_TESTING_ConnectionProcessor proc, enum PeerLists list)
1815 unsigned int total_connections;
1816 unsigned int outer_count;
1818 unsigned int previous_total_connections;
1822 GNUNET_assert (pg->total > 1);
1824 /* Add a connection between the first two nodes */
1825 total_connections = proc (pg, 0, 1, list, GNUNET_YES);
1827 for (outer_count = 1; outer_count < pg->total; outer_count++)
1829 previous_total_connections = total_connections;
1830 for (i = 0; i < outer_count; i++)
1833 pg->peers[i].num_connections / (double) previous_total_connections;
1836 GNUNET_CRYPTO_random_u64 (GNUNET_CRYPTO_QUALITY_WEAK,
1837 UINT64_MAX)) / ((double) UINT64_MAX);
1839 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1840 "Considering connecting peer %d to peer %d\n", outer_count,
1843 if (random < probability)
1846 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Connecting peer %d to peer %d\n",
1849 total_connections += proc (pg, outer_count, i, list, GNUNET_YES);
1854 return total_connections;
1858 * Create a topology given a peer group (set of running peers)
1859 * and a connection processor. Creates a small world topology
1860 * according to the rewired ring construction. The basic
1861 * behavior is that a ring topology is created, but with some
1862 * probability instead of connecting a peer to the next
1863 * neighbor in the ring a connection will be created to a peer
1864 * selected uniformly at random. We use the TESTING
1865 * PERCENTAGE option to specify what number of
1866 * connections each peer should have. Default is 2,
1867 * which makes the ring, any given number is multiplied by
1868 * the log of the network size; i.e. a PERCENTAGE of 2 makes
1869 * each peer have on average 2logn connections. The additional
1870 * connections are made at increasing distance around the ring
1871 * from the original peer, or to random peers based on the re-
1872 * wiring probability. The TESTING
1873 * PROBABILITY option is used as the probability that a given
1874 * connection is rewired.
1876 * @param pg the peergroup to create the topology on
1877 * @param proc the connection processor to call to actually set
1878 * up connections between two peers
1879 * @param list the peer list to use
1881 * @return the number of connections that were set up
1885 create_small_world_ring (struct GNUNET_TESTING_PeerGroup *pg,
1886 GNUNET_TESTING_ConnectionProcessor proc,
1887 enum PeerLists list)
1891 unsigned int natLog;
1892 unsigned int randomPeer;
1893 double random, logNModifier, probability;
1894 unsigned int smallWorldConnections;
1899 unsigned int useAnd;
1900 int connect_attempts;
1902 logNModifier = 0.5; /* FIXME: default value? */
1904 GNUNET_CONFIGURATION_get_value_string (pg->cfg, "TESTING", "PERCENTAGE",
1907 if (SSCANF (p_string, "%lf", &logNModifier) != 1)
1908 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
1910 ("Invalid value `%s' for option `%s' in section `%s': expected float\n"),
1911 p_string, "LOGNMODIFIER", "TESTING");
1912 GNUNET_free (p_string);
1914 probability = 0.5; /* FIXME: default percentage? */
1916 GNUNET_CONFIGURATION_get_value_string (pg->cfg, "TESTING", "PROBABILITY",
1919 if (SSCANF (p_string, "%lf", &probability) != 1)
1920 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
1922 ("Invalid value `%s' for option `%s' in section `%s': expected float\n"),
1923 p_string, "PERCENTAGE", "TESTING");
1924 GNUNET_free (p_string);
1926 natLog = log (pg->total);
1927 connsPerPeer = ceil (natLog * logNModifier);
1929 if (connsPerPeer % 2 == 1)
1932 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, _("Target is %d connections per peer."),
1935 smallWorldConnections = 0;
1936 connect_attempts = 0;
1937 for (i = 0; i < pg->total; i++)
1940 max = i + connsPerPeer / 2;
1941 min = i - connsPerPeer / 2;
1943 if (max > pg->total - 1)
1945 max = max - pg->total;
1951 min = pg->total - 1 + min;
1955 for (j = 0; j < connsPerPeer / 2; j++)
1959 GNUNET_CRYPTO_random_u64 (GNUNET_CRYPTO_QUALITY_WEAK,
1960 UINT64_MAX) / ((double) UINT64_MAX));
1961 if (random < probability)
1963 /* Connect to uniformly selected random peer */
1965 GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK, pg->total);
1966 while ((((randomPeer < max) && (randomPeer > min)) && (useAnd == 0)) ||
1967 (((randomPeer > min) || (randomPeer < max)) && (useAnd == 1)))
1970 GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK, pg->total);
1972 smallWorldConnections += proc (pg, i, randomPeer, list, GNUNET_YES);
1976 nodeToConnect = i + j + 1;
1977 if (nodeToConnect > pg->total - 1)
1979 nodeToConnect = nodeToConnect - pg->total;
1981 connect_attempts += proc (pg, i, nodeToConnect, list, GNUNET_YES);
1987 connect_attempts += smallWorldConnections;
1989 return connect_attempts;
1993 * Create a topology given a peer group (set of running peers)
1994 * and a connection processor.
1996 * @param pg the peergroup to create the topology on
1997 * @param proc the connection processor to call to actually set
1998 * up connections between two peers
1999 * @param list the peer list to use
2001 * @return the number of connections that were set up
2005 create_nated_internet (struct GNUNET_TESTING_PeerGroup *pg,
2006 GNUNET_TESTING_ConnectionProcessor proc,
2007 enum PeerLists list)
2009 unsigned int outer_count, inner_count;
2010 unsigned int cutoff;
2011 int connect_attempts;
2012 double nat_percentage;
2015 nat_percentage = 0.6; /* FIXME: default percentage? */
2017 GNUNET_CONFIGURATION_get_value_string (pg->cfg, "TESTING", "PERCENTAGE",
2020 if (SSCANF (p_string, "%lf", &nat_percentage) != 1)
2021 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2023 ("Invalid value `%s' for option `%s' in section `%s': expected float\n"),
2024 p_string, "PERCENTAGE", "TESTING");
2025 GNUNET_free (p_string);
2028 cutoff = (unsigned int) (nat_percentage * pg->total);
2029 connect_attempts = 0;
2030 for (outer_count = 0; outer_count < pg->total - 1; outer_count++)
2032 for (inner_count = outer_count + 1; inner_count < pg->total; inner_count++)
2034 if ((outer_count > cutoff) || (inner_count > cutoff))
2037 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Connecting peer %d to peer %d\n",
2038 outer_count, inner_count);
2041 proc (pg, outer_count, inner_count, list, GNUNET_YES);
2045 return connect_attempts;
2050 * Create a topology given a peer group (set of running peers)
2051 * and a connection processor.
2053 * @param pg the peergroup to create the topology on
2054 * @param proc the connection processor to call to actually set
2055 * up connections between two peers
2056 * @param list the peer list to use
2058 * @return the number of connections that were set up
2062 create_nated_internet_copy (struct GNUNET_TESTING_PeerGroup *pg,
2063 GNUNET_TESTING_ConnectionProcessor proc,
2064 enum PeerLists list)
2066 unsigned int outer_count, inner_count;
2067 unsigned int cutoff;
2068 int connect_attempts;
2069 double nat_percentage;
2072 struct ProgressMeter *conn_meter;
2074 nat_percentage = 0.6; /* FIXME: default percentage? */
2076 GNUNET_CONFIGURATION_get_value_string (pg->cfg, "TESTING", "PERCENTAGE",
2079 if (SSCANF (p_string, "%lf", &nat_percentage) != 1)
2080 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2082 ("Invalid value `%s' for option `%s' in section `%s': expected float\n"),
2083 p_string, "PERCENTAGE", "TESTING");
2084 GNUNET_free (p_string);
2087 cutoff = (unsigned int) (nat_percentage * pg->total);
2089 for (outer_count = 0; outer_count < pg->total - 1; outer_count++)
2091 for (inner_count = outer_count + 1; inner_count < pg->total; inner_count++)
2093 if ((outer_count > cutoff) || (inner_count > cutoff))
2099 conn_meter = create_meter (count, "NAT COPY", GNUNET_YES);
2100 connect_attempts = 0;
2101 for (outer_count = 0; outer_count < pg->total - 1; outer_count++)
2103 for (inner_count = outer_count + 1; inner_count < pg->total; inner_count++)
2105 if ((outer_count > cutoff) || (inner_count > cutoff))
2108 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Connecting peer %d to peer %d\n",
2109 outer_count, inner_count);
2112 proc (pg, outer_count, inner_count, list, GNUNET_YES);
2113 add_connections (pg, outer_count, inner_count, ALLOWED, GNUNET_NO);
2114 update_meter (conn_meter);
2118 free_meter (conn_meter);
2120 return connect_attempts;
2125 * Create a topology given a peer group (set of running peers)
2126 * and a connection processor.
2128 * @param pg the peergroup to create the topology on
2129 * @param proc the connection processor to call to actually set
2130 * up connections between two peers
2131 * @param list the peer list to use
2133 * @return the number of connections that were set up
2137 create_small_world (struct GNUNET_TESTING_PeerGroup *pg,
2138 GNUNET_TESTING_ConnectionProcessor proc,
2139 enum PeerLists list)
2141 unsigned int i, j, k;
2142 unsigned int square;
2145 unsigned int toggle = 1;
2146 unsigned int nodeToConnect;
2147 unsigned int natLog;
2148 unsigned int node1Row;
2149 unsigned int node1Col;
2150 unsigned int node2Row;
2151 unsigned int node2Col;
2152 unsigned int distance;
2153 double probability, random, percentage;
2154 unsigned int smallWorldConnections;
2155 unsigned int small_world_it;
2157 int connect_attempts;
2159 square = floor (sqrt (pg->total));
2163 percentage = 0.5; /* FIXME: default percentage? */
2165 GNUNET_CONFIGURATION_get_value_string (pg->cfg, "TESTING", "PERCENTAGE",
2168 if (SSCANF (p_string, "%lf", &percentage) != 1)
2169 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2171 ("Invalid value `%s' for option `%s' in section `%s': expected float\n"),
2172 p_string, "PERCENTAGE", "TESTING");
2173 GNUNET_free (p_string);
2175 if (percentage < 0.0)
2177 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2179 ("Invalid value `%s' for option `%s' in section `%s': got %f, needed value greater than 0\n"),
2180 "PERCENTAGE", "TESTING", percentage);
2183 probability = 0.5; /* FIXME: default percentage? */
2185 GNUNET_CONFIGURATION_get_value_string (pg->cfg, "TESTING", "PROBABILITY",
2188 if (SSCANF (p_string, "%lf", &probability) != 1)
2189 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2191 ("Invalid value `%s' for option `%s' in section `%s': expected float\n"),
2192 p_string, "PROBABILITY", "TESTING");
2193 GNUNET_free (p_string);
2195 if (square * square != pg->total)
2197 while (rows * cols < pg->total)
2199 if (toggle % 2 == 0)
2208 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2209 _("Connecting nodes in 2d torus topology: %u rows %u columns\n"),
2213 connect_attempts = 0;
2214 /* Rows and columns are all sorted out, now iterate over all nodes and connect each
2215 * to the node to its right and above. Once this is over, we'll have our torus!
2216 * Special case for the last node (if the rows and columns are not equal), connect
2217 * to the first in the row to maintain topology.
2219 for (i = 0; i < pg->total; i++)
2221 /* First connect to the node to the right */
2222 if (((i + 1) % cols != 0) && (i + 1 != pg->total))
2223 nodeToConnect = i + 1;
2224 else if (i + 1 == pg->total)
2225 nodeToConnect = rows * cols - cols;
2227 nodeToConnect = i - cols + 1;
2229 connect_attempts += proc (pg, i, nodeToConnect, list, GNUNET_YES);
2233 nodeToConnect = (rows * cols) - cols + i;
2234 if (nodeToConnect >= pg->total)
2235 nodeToConnect -= cols;
2238 nodeToConnect = i - cols;
2240 if (nodeToConnect < pg->total)
2241 connect_attempts += proc (pg, i, nodeToConnect, list, GNUNET_YES);
2243 natLog = log (pg->total);
2244 #if VERBOSE_TESTING > 2
2245 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2246 _("natural log of %d is %d, will run %d iterations\n"), pg->total,
2247 natLog, (int) (natLog * percentage));
2248 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2249 _("Total connections added thus far: %u!\n"), connect_attempts);
2251 smallWorldConnections = 0;
2252 small_world_it = (unsigned int) (natLog * percentage);
2253 if (small_world_it < 1)
2255 GNUNET_assert (small_world_it > 0 && small_world_it < (unsigned int) -1);
2256 for (i = 0; i < small_world_it; i++)
2258 for (j = 0; j < pg->total; j++)
2260 /* Determine the row and column of node at position j on the 2d torus */
2261 node1Row = j / cols;
2262 node1Col = j - (node1Row * cols);
2263 for (k = 0; k < pg->total; k++)
2265 /* Determine the row and column of node at position k on the 2d torus */
2266 node2Row = k / cols;
2267 node2Col = k - (node2Row * cols);
2268 /* Simple Cartesian distance */
2269 distance = abs (node1Row - node2Row) + abs (node1Col - node2Col);
2272 /* Calculate probability as 1 over the square of the distance */
2273 probability = 1.0 / (distance * distance);
2274 /* Choose a random value between 0 and 1 */
2277 GNUNET_CRYPTO_random_u64 (GNUNET_CRYPTO_QUALITY_WEAK,
2278 UINT64_MAX)) / ((double) UINT64_MAX);
2279 /* If random < probability, then connect the two nodes */
2280 if (random < probability)
2281 smallWorldConnections += proc (pg, j, k, list, GNUNET_YES);
2287 connect_attempts += smallWorldConnections;
2288 #if VERBOSE_TESTING > 2
2289 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2290 _("Total connections added for small world: %d!\n"),
2291 smallWorldConnections);
2293 return connect_attempts;
2297 * Create a topology given a peer group (set of running peers)
2298 * and a connection processor.
2300 * @param pg the peergroup to create the topology on
2301 * @param proc the connection processor to call to actually set
2302 * up connections between two peers
2303 * @param list the peer list to use
2305 * @return the number of connections that were set up
2309 create_erdos_renyi (struct GNUNET_TESTING_PeerGroup *pg,
2310 GNUNET_TESTING_ConnectionProcessor proc,
2311 enum PeerLists list)
2314 unsigned int outer_count;
2315 unsigned int inner_count;
2316 int connect_attempts;
2320 probability = 0.5; /* FIXME: default percentage? */
2322 GNUNET_CONFIGURATION_get_value_string (pg->cfg, "TESTING", "PROBABILITY",
2325 if (SSCANF (p_string, "%lf", &probability) != 1)
2326 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2328 ("Invalid value `%s' for option `%s' in section `%s': expected float\n"),
2329 p_string, "PROBABILITY", "TESTING");
2330 GNUNET_free (p_string);
2332 connect_attempts = 0;
2333 for (outer_count = 0; outer_count < pg->total - 1; outer_count++)
2335 for (inner_count = outer_count + 1; inner_count < pg->total; inner_count++)
2339 GNUNET_CRYPTO_random_u64 (GNUNET_CRYPTO_QUALITY_WEAK,
2340 UINT64_MAX)) / ((double) UINT64_MAX);
2342 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, _("rand is %f probability is %f\n"),
2343 temp_rand, probability);
2345 if (temp_rand < probability)
2348 proc (pg, outer_count, inner_count, list, GNUNET_YES);
2353 return connect_attempts;
2357 * Create a topology given a peer group (set of running peers)
2358 * and a connection processor. This particular function creates
2359 * the connections for a 2d-torus, plus additional "closest"
2360 * connections per peer.
2362 * @param pg the peergroup to create the topology on
2363 * @param proc the connection processor to call to actually set
2364 * up connections between two peers
2365 * @param list the peer list to use
2367 * @return the number of connections that were set up
2371 create_2d_torus (struct GNUNET_TESTING_PeerGroup *pg,
2372 GNUNET_TESTING_ConnectionProcessor proc, enum PeerLists list)
2375 unsigned int square;
2378 unsigned int toggle = 1;
2379 unsigned int nodeToConnect;
2380 int connect_attempts;
2382 connect_attempts = 0;
2384 square = floor (sqrt (pg->total));
2388 if (square * square != pg->total)
2390 while (rows * cols < pg->total)
2392 if (toggle % 2 == 0)
2401 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2402 _("Connecting nodes in 2d torus topology: %u rows %u columns\n"),
2405 /* Rows and columns are all sorted out, now iterate over all nodes and connect each
2406 * to the node to its right and above. Once this is over, we'll have our torus!
2407 * Special case for the last node (if the rows and columns are not equal), connect
2408 * to the first in the row to maintain topology.
2410 for (i = 0; i < pg->total; i++)
2412 /* First connect to the node to the right */
2413 if (((i + 1) % cols != 0) && (i + 1 != pg->total))
2414 nodeToConnect = i + 1;
2415 else if (i + 1 == pg->total)
2416 nodeToConnect = rows * cols - cols;
2418 nodeToConnect = i - cols + 1;
2420 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Connecting peer %d to peer %d\n", i,
2423 connect_attempts += proc (pg, i, nodeToConnect, list, GNUNET_YES);
2425 /* Second connect to the node immediately above */
2428 nodeToConnect = (rows * cols) - cols + i;
2429 if (nodeToConnect >= pg->total)
2430 nodeToConnect -= cols;
2433 nodeToConnect = i - cols;
2435 if (nodeToConnect < pg->total)
2438 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Connecting peer %d to peer %d\n", i,
2441 connect_attempts += proc (pg, i, nodeToConnect, list, GNUNET_YES);
2446 return connect_attempts;
2450 * Create a topology given a peer group (set of running peers)
2451 * and a connection processor.
2453 * @param pg the peergroup to create the topology on
2454 * @param proc the connection processor to call to actually set
2455 * up connections between two peers
2456 * @param list the peer list to use
2457 * @param check does the connection processor need to check before
2458 * performing an action on the list?
2460 * @return the number of connections that were set up
2464 create_clique (struct GNUNET_TESTING_PeerGroup *pg,
2465 GNUNET_TESTING_ConnectionProcessor proc, enum PeerLists list,
2468 unsigned int outer_count;
2469 unsigned int inner_count;
2470 int connect_attempts;
2471 struct ProgressMeter *conn_meter;
2473 connect_attempts = 0;
2476 create_meter ((((pg->total * pg->total) + pg->total) / 2) - pg->total,
2477 "Create Clique ", GNUNET_NO);
2478 for (outer_count = 0; outer_count < pg->total - 1; outer_count++)
2480 for (inner_count = outer_count + 1; inner_count < pg->total; inner_count++)
2483 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Connecting peer %d to peer %d\n",
2484 outer_count, inner_count);
2486 connect_attempts += proc (pg, outer_count, inner_count, list, check);
2487 update_meter (conn_meter);
2490 reset_meter (conn_meter);
2491 free_meter (conn_meter);
2492 return connect_attempts;
2497 * Iterator over hash map entries.
2499 * @param cls closure the peer group
2500 * @param key the key stored in the hashmap is the
2501 * index of the peer to connect to
2502 * @param value value in the hash map, handle to the peer daemon
2503 * @return GNUNET_YES if we should continue to
2508 unblacklist_iterator (void *cls, const GNUNET_HashCode * key, void *value)
2510 struct UnblacklistContext *un_ctx = cls;
2511 uint32_t second_pos;
2513 uid_from_hash (key, &second_pos);
2515 unblacklist_connections (un_ctx->pg, un_ctx->first_uid, second_pos);
2523 * Create a blacklist topology based on the allowed topology
2524 * which disallows any connections not in the allowed topology
2525 * at the transport level.
2527 * @param pg the peergroup to create the topology on
2528 * @param proc the connection processor to call to allow
2529 * up connections between two peers
2531 * @return the number of connections that were set up
2535 copy_allowed (struct GNUNET_TESTING_PeerGroup *pg,
2536 GNUNET_TESTING_ConnectionProcessor proc)
2540 struct PeerConnection *iter;
2543 struct UnblacklistContext un_ctx;
2548 for (count = 0; count < pg->total - 1; count++)
2551 iter = pg->peers[count].allowed_peers_head;
2552 while (iter != NULL)
2554 remove_connections (pg, count, iter->index, BLACKLIST, GNUNET_YES);
2555 //unblacklist_connections(pg, count, iter->index);
2559 un_ctx.first_uid = count;
2561 GNUNET_CONTAINER_multihashmap_iterate (pg->peers[count].allowed_peers,
2562 &unblacklist_iterator, &un_ctx);
2565 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Unblacklisted %u peers\n", total);
2571 * Create a topology given a peer group (set of running peers)
2572 * and a connection processor.
2574 * @param pg the peergroup to create the topology on
2575 * @param proc the connection processor to call to actually set
2576 * up connections between two peers
2577 * @param list which list should be modified
2579 * @return the number of connections that were set up
2583 create_line (struct GNUNET_TESTING_PeerGroup *pg,
2584 GNUNET_TESTING_ConnectionProcessor proc, enum PeerLists list)
2587 unsigned int connect_attempts;
2589 connect_attempts = 0;
2590 /* Connect each peer to the next highest numbered peer */
2591 for (count = 0; count < pg->total - 1; count++)
2594 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Connecting peer %d to peer %d\n",
2597 connect_attempts += proc (pg, count, count + 1, list, GNUNET_YES);
2600 return connect_attempts;
2604 * Create a topology given a peer group (set of running peers)
2605 * and a connection processor.
2607 * @param pg the peergroup to create the topology on
2608 * @param filename the file to read topology information from
2609 * @param proc the connection processor to call to actually set
2610 * up connections between two peers
2611 * @param list the peer list to use
2613 * @return the number of connections that were set up
2617 create_from_file (struct GNUNET_TESTING_PeerGroup *pg, char *filename,
2618 GNUNET_TESTING_ConnectionProcessor proc, enum PeerLists list)
2620 int connect_attempts;
2621 unsigned int first_peer_index;
2622 unsigned int second_peer_index;
2627 unsigned int total_peers;
2628 enum States curr_state;
2630 connect_attempts = 0;
2631 if (GNUNET_OK != GNUNET_DISK_file_test (filename))
2632 GNUNET_DISK_fn_write (filename, NULL, 0, GNUNET_DISK_PERM_USER_READ);
2634 if ((0 != STAT (filename, &frstat)) || (frstat.st_size == 0))
2636 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
2637 "Could not open file `%s' specified for topology!", filename);
2638 return connect_attempts;
2641 data = GNUNET_malloc_large (frstat.st_size);
2642 GNUNET_assert (data != NULL);
2643 if (frstat.st_size != GNUNET_DISK_fn_read (filename, data, frstat.st_size))
2645 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
2646 "Could not read file %s specified for host list, ending test!",
2649 return connect_attempts;
2654 first_peer_index = 0;
2655 /* First line should contain a single integer, specifying the number of peers */
2656 /* Each subsequent line should contain this format PEER_INDEX:OTHER_PEER_INDEX[,...] */
2657 curr_state = NUM_PEERS;
2658 while (count < frstat.st_size - 1)
2660 if ((buf[count] == '\n') || (buf[count] == ' '))
2670 total_peers = strtoul (&buf[count], NULL, 10);
2673 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2674 "Failed to read number of peers from topology file!\n");
2676 return connect_attempts;
2679 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Found %u total peers in topology\n",
2682 GNUNET_assert (total_peers == pg->total);
2683 curr_state = PEER_INDEX;
2684 while ((buf[count] != '\n') && (count < frstat.st_size - 1))
2690 first_peer_index = strtoul (&buf[count], NULL, 10);
2693 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2694 "Failed to read peer index from topology file!\n");
2696 return connect_attempts;
2698 while ((buf[count] != ':') && (count < frstat.st_size - 1))
2701 curr_state = OTHER_PEER_INDEX;
2704 if (1 == sscanf (&buf[count], ":"))
2705 curr_state = OTHER_PEER_INDEX;
2708 case OTHER_PEER_INDEX:
2710 second_peer_index = strtoul (&buf[count], NULL, 10);
2713 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2714 "Failed to peer index from topology file!\n");
2716 return connect_attempts;
2718 /* Assume file is written with first peer 1, but array index is 0 */
2720 proc (pg, first_peer_index - 1, second_peer_index - 1, list,
2722 while ((buf[count] != '\n') && (buf[count] != ',') &&
2723 (count < frstat.st_size - 1))
2725 if (buf[count] == '\n')
2727 curr_state = PEER_INDEX;
2729 else if (buf[count] != ',')
2731 curr_state = OTHER_PEER_INDEX;
2736 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
2737 "Found bad data in topology file while in state %d!\n",
2741 return connect_attempts;
2745 return connect_attempts;
2749 * Create a topology given a peer group (set of running peers)
2750 * and a connection processor.
2752 * @param pg the peergroup to create the topology on
2753 * @param proc the connection processor to call to actually set
2754 * up connections between two peers
2755 * @param list the peer list to use
2757 * @return the number of connections that were set up
2761 create_ring (struct GNUNET_TESTING_PeerGroup *pg,
2762 GNUNET_TESTING_ConnectionProcessor proc, enum PeerLists list)
2765 int connect_attempts;
2767 connect_attempts = 0;
2769 /* Connect each peer to the next highest numbered peer */
2770 for (count = 0; count < pg->total - 1; count++)
2773 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Connecting peer %d to peer %d\n",
2776 connect_attempts += proc (pg, count, count + 1, list, GNUNET_YES);
2779 /* Connect the last peer to the first peer */
2780 connect_attempts += proc (pg, pg->total - 1, 0, list, GNUNET_YES);
2782 return connect_attempts;
2787 * Iterator for writing friends of a peer to a file.
2789 * @param cls closure, an open writable file handle
2790 * @param key the key the daemon was stored under
2791 * @param value the GNUNET_TESTING_Daemon that needs to be written.
2793 * @return GNUNET_YES to continue iteration
2795 * TODO: Could replace friend_file_iterator and blacklist_file_iterator
2796 * with a single file_iterator that takes a closure which contains
2797 * the prefix to write before the peer. Then this could be used
2798 * for blacklisting multiple transports and writing the friend
2799 * file. I'm sure *someone* will complain loudly about other
2800 * things that negate these functions even existing so no point in
2804 friend_file_iterator (void *cls, const GNUNET_HashCode * key, void *value)
2806 FILE *temp_friend_handle = cls;
2807 struct GNUNET_TESTING_Daemon *peer = value;
2808 struct GNUNET_PeerIdentity *temppeer;
2809 struct GNUNET_CRYPTO_HashAsciiEncoded peer_enc;
2811 temppeer = &peer->id;
2812 GNUNET_CRYPTO_hash_to_enc (&temppeer->hashPubKey, &peer_enc);
2813 FPRINTF (temp_friend_handle, "%s\n", (char *) &peer_enc);
2818 struct BlacklistContext
2821 * The (open) file handle to write to
2823 FILE *temp_file_handle;
2826 * The transport that this peer will be blacklisted on.
2832 * Iterator for writing blacklist data to appropriate files.
2834 * @param cls closure, an open writable file handle
2835 * @param key the key the daemon was stored under
2836 * @param value the GNUNET_TESTING_Daemon that needs to be written.
2838 * @return GNUNET_YES to continue iteration
2841 blacklist_file_iterator (void *cls, const GNUNET_HashCode * key, void *value)
2843 struct BlacklistContext *blacklist_ctx = cls;
2844 struct GNUNET_TESTING_Daemon *peer = value;
2845 struct GNUNET_PeerIdentity *temppeer;
2846 struct GNUNET_CRYPTO_HashAsciiEncoded peer_enc;
2848 temppeer = &peer->id;
2849 GNUNET_CRYPTO_hash_to_enc (&temppeer->hashPubKey, &peer_enc);
2850 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Writing entry %s:%s to file\n",
2851 blacklist_ctx->transport, (char *) &peer_enc);
2852 FPRINTF (blacklist_ctx->temp_file_handle, "%s:%s\n", blacklist_ctx->transport,
2853 (char *) &peer_enc);
2860 * Create the friend files based on the PeerConnection's
2861 * of each peer in the peer group, and copy the files
2862 * to the appropriate place
2864 * @param pg the peer group we are dealing with
2867 create_and_copy_friend_files (struct GNUNET_TESTING_PeerGroup *pg)
2869 FILE *temp_friend_handle;
2870 unsigned int pg_iter;
2871 char *temp_service_path;
2872 struct GNUNET_OS_Process **procarr;
2877 enum GNUNET_OS_ProcessStatusType type;
2878 unsigned long return_code;
2886 struct GNUNET_CRYPTO_HashAsciiEncoded peer_enc;
2887 struct PeerConnection *conn_iter;
2889 procarr = GNUNET_malloc (sizeof (struct GNUNET_OS_Process *) * pg->total);
2890 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
2892 mytemp = GNUNET_DISK_mktemp ("friends");
2893 GNUNET_assert (mytemp != NULL);
2894 temp_friend_handle = FOPEN (mytemp, "wt");
2895 GNUNET_assert (temp_friend_handle != NULL);
2897 conn_iter = pg->peers[pg_iter].allowed_peers_head;
2898 while (conn_iter != NULL)
2900 GNUNET_CRYPTO_hash_to_enc (&pg->peers[conn_iter->index].daemon->
2901 id.hashPubKey, &peer_enc);
2902 FPRINTF (temp_friend_handle, "%s\n", (char *) &peer_enc);
2903 conn_iter = conn_iter->next;
2906 GNUNET_CONTAINER_multihashmap_iterate (pg->peers[pg_iter].allowed_peers,
2907 &friend_file_iterator,
2908 temp_friend_handle);
2910 FCLOSE (temp_friend_handle);
2913 GNUNET_CONFIGURATION_get_value_string (pg->peers[pg_iter].daemon->cfg,
2914 "PATHS", "SERVICEHOME",
2915 &temp_service_path))
2917 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2919 ("No `%s' specified in peer configuration in section `%s', cannot copy friends file!\n"),
2920 "SERVICEHOME", "PATHS");
2921 if (UNLINK (mytemp) != 0)
2922 GNUNET_log_strerror_file (GNUNET_ERROR_TYPE_WARNING, "unlink", mytemp);
2923 GNUNET_free (mytemp);
2927 if (pg->peers[pg_iter].daemon->hostname == NULL) /* Local, just copy the file */
2929 GNUNET_asprintf (&arg, "%s/friends", temp_service_path);
2931 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2932 "Copying file with RENAME(%s,%s)\n", mytemp, arg);
2934 RENAME (mytemp, arg);
2935 procarr[pg_iter] = NULL;
2938 else /* Remote, scp the file to the correct place */
2940 if (NULL != pg->peers[pg_iter].daemon->username)
2941 GNUNET_asprintf (&arg, "%s@%s:%s/friends",
2942 pg->peers[pg_iter].daemon->username,
2943 pg->peers[pg_iter].daemon->hostname,
2946 GNUNET_asprintf (&arg, "%s:%s/friends",
2947 pg->peers[pg_iter].daemon->hostname,
2950 GNUNET_OS_start_process (GNUNET_NO, NULL, NULL, "scp", "scp", mytemp, arg, NULL);
2951 GNUNET_assert (procarr[pg_iter] != NULL);
2952 ret = GNUNET_OS_process_wait (procarr[pg_iter]); /* FIXME: schedule this, throttle! */
2953 GNUNET_OS_process_close (procarr[pg_iter]);
2954 if (ret != GNUNET_OK)
2956 /* FIXME: free contents of 'procarr' array */
2957 GNUNET_free (procarr);
2958 GNUNET_free (temp_service_path);
2959 GNUNET_free (mytemp);
2963 procarr[pg_iter] = NULL;
2965 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2966 "Copying file with command scp %s %s\n", mytemp, arg);
2970 GNUNET_free (temp_service_path);
2971 GNUNET_free (mytemp);
2976 ret = GNUNET_SYSERR;
2977 while ((count < max_wait) && (ret != GNUNET_OK))
2980 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
2983 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Checking copy status of file %d\n",
2986 if (procarr[pg_iter] != NULL) /* Check for already completed! */
2988 if (GNUNET_OS_process_status (procarr[pg_iter], &type, &return_code) !=
2991 ret = GNUNET_SYSERR;
2993 else if ((type != GNUNET_OS_PROCESS_EXITED) || (return_code != 0))
2995 ret = GNUNET_SYSERR;
2999 GNUNET_OS_process_close (procarr[pg_iter]);
3000 procarr[pg_iter] = NULL;
3002 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "File %d copied\n", pg_iter);
3008 if (ret == GNUNET_SYSERR)
3010 /* FIXME: why sleep here? -CG */
3016 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
3017 _("Finished copying all friend files!\n"));
3020 GNUNET_free (procarr);
3025 * Create the blacklist files based on the PeerConnection's
3026 * of each peer in the peer group, and copy the files
3027 * to the appropriate place.
3029 * @param pg the peer group we are dealing with
3030 * @param transports space delimited list of transports to blacklist
3033 create_and_copy_blacklist_files (struct GNUNET_TESTING_PeerGroup *pg,
3034 const char *transports)
3036 FILE *temp_file_handle;
3037 unsigned int pg_iter;
3038 char *temp_service_path;
3039 struct GNUNET_OS_Process **procarr;
3042 enum GNUNET_OS_ProcessStatusType type;
3043 unsigned long return_code;
3050 char *temp_transports;
3053 struct GNUNET_CRYPTO_HashAsciiEncoded peer_enc;
3054 struct PeerConnection *conn_iter;
3056 static struct BlacklistContext blacklist_ctx;
3059 procarr = GNUNET_malloc (sizeof (struct GNUNET_OS_Process *) * pg->total);
3060 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
3062 mytemp = GNUNET_DISK_mktemp ("blacklist");
3063 GNUNET_assert (mytemp != NULL);
3064 temp_file_handle = FOPEN (mytemp, "wt");
3065 GNUNET_assert (temp_file_handle != NULL);
3066 temp_transports = GNUNET_strdup (transports);
3068 blacklist_ctx.temp_file_handle = temp_file_handle;
3070 transport_len = strlen (temp_transports) + 1;
3073 for (i = 0; i < transport_len; i++)
3075 if ((temp_transports[i] == ' ') && (pos == NULL))
3076 continue; /* At start of string (whitespace) */
3077 else if ((temp_transports[i] == ' ') || (temp_transports[i] == '\0')) /* At end of string */
3079 temp_transports[i] = '\0';
3081 conn_iter = pg->peers[pg_iter].blacklisted_peers_head;
3082 while (conn_iter != NULL)
3084 GNUNET_CRYPTO_hash_to_enc (&pg->peers[conn_iter->index].daemon->
3085 id.hashPubKey, &peer_enc);
3086 FPRINTF (temp_file_handle, "%s:%s\n", pos, (char *) &peer_enc);
3087 conn_iter = conn_iter->next;
3090 blacklist_ctx.transport = pos;
3091 (void) GNUNET_CONTAINER_multihashmap_iterate (pg->
3093 [pg_iter].blacklisted_peers,
3094 &blacklist_file_iterator,
3098 } /* At beginning of actual string */
3099 else if (pos == NULL)
3101 pos = &temp_transports[i];
3105 GNUNET_free (temp_transports);
3106 FCLOSE (temp_file_handle);
3109 GNUNET_CONFIGURATION_get_value_string (pg->peers[pg_iter].daemon->cfg,
3110 "PATHS", "SERVICEHOME",
3111 &temp_service_path))
3113 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
3115 ("No `%s' specified in peer configuration in section `%s', cannot copy friends file!\n"),
3116 "SERVICEHOME", "PATHS");
3117 if (UNLINK (mytemp) != 0)
3118 GNUNET_log_strerror_file (GNUNET_ERROR_TYPE_WARNING, "unlink", mytemp);
3119 GNUNET_free (mytemp);
3123 if (pg->peers[pg_iter].daemon->hostname == NULL) /* Local, just copy the file */
3125 GNUNET_asprintf (&arg, "%s/blacklist", temp_service_path);
3126 RENAME (mytemp, arg);
3127 procarr[pg_iter] = NULL;
3129 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
3130 _("Copying file with RENAME (%s,%s)\n"), mytemp, arg);
3135 else /* Remote, scp the file to the correct place */
3137 if (NULL != pg->peers[pg_iter].daemon->username)
3138 GNUNET_asprintf (&arg, "%s@%s:%s/blacklist",
3139 pg->peers[pg_iter].daemon->username,
3140 pg->peers[pg_iter].daemon->hostname,
3143 GNUNET_asprintf (&arg, "%s:%s/blacklist",
3144 pg->peers[pg_iter].daemon->hostname,
3147 GNUNET_OS_start_process (GNUNET_NO, NULL, NULL, "scp", "scp", mytemp, arg, NULL);
3148 GNUNET_assert (procarr[pg_iter] != NULL);
3149 GNUNET_OS_process_wait (procarr[pg_iter]); /* FIXME: add scheduled blacklist file copy that parallelizes file copying! */
3152 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
3153 _("Copying file with command scp %s %s\n"), mytemp, arg);
3157 GNUNET_free (temp_service_path);
3158 GNUNET_free (mytemp);
3162 ret = GNUNET_SYSERR;
3163 while ((count < max_wait) && (ret != GNUNET_OK))
3166 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
3169 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
3170 _("Checking copy status of file %d\n"), pg_iter);
3172 if (procarr[pg_iter] != NULL) /* Check for already completed! */
3174 if (GNUNET_OS_process_status (procarr[pg_iter], &type, &return_code) !=
3177 ret = GNUNET_SYSERR;
3179 else if ((type != GNUNET_OS_PROCESS_EXITED) || (return_code != 0))
3181 ret = GNUNET_SYSERR;
3185 GNUNET_OS_process_close (procarr[pg_iter]);
3186 procarr[pg_iter] = NULL;
3188 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, _("File %d copied\n"), pg_iter);
3194 if (ret == GNUNET_SYSERR)
3196 /* FIXME: why sleep here? -CG */
3202 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
3203 _("Finished copying all blacklist files!\n"));
3205 GNUNET_free (procarr);
3209 /* Forward Declaration */
3211 schedule_connect (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc);
3214 * Choose a random peer's next connection to create, and
3215 * call schedule_connect to set up the connect task.
3217 * @param pg the peer group to connect
3220 preschedule_connect (struct GNUNET_TESTING_PeerGroup *pg)
3222 struct ConnectTopologyContext *ct_ctx = &pg->ct_ctx;
3223 struct PeerConnection *connection_iter;
3224 struct ConnectContext *connect_context;
3225 uint32_t random_peer;
3227 if (ct_ctx->remaining_connections == 0)
3230 GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK, pg->total);
3231 while (pg->peers[random_peer].connect_peers_head == NULL)
3233 GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK, pg->total);
3235 connection_iter = pg->peers[random_peer].connect_peers_head;
3236 connect_context = GNUNET_malloc (sizeof (struct ConnectContext));
3237 connect_context->first_index = random_peer;
3238 connect_context->second_index = connection_iter->index;
3239 connect_context->ct_ctx = ct_ctx;
3240 connect_context->task =
3241 GNUNET_SCHEDULER_add_now (&schedule_connect, connect_context);
3242 GNUNET_CONTAINER_DLL_insert (pg->cc_head, pg->cc_tail, connect_context);
3243 GNUNET_CONTAINER_DLL_remove (pg->peers[random_peer].connect_peers_head,
3244 pg->peers[random_peer].connect_peers_tail,
3246 GNUNET_free (connection_iter);
3247 ct_ctx->remaining_connections--;
3251 /* Forward declaration */
3253 schedule_send_hellos (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc);
3256 * Close connections and free the hello context.
3258 * @param cls the 'struct SendHelloContext *'
3259 * @param tc scheduler context
3262 free_hello_context (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
3264 struct SendHelloContext *send_hello_context = cls;
3266 if (send_hello_context->peer->daemon->server != NULL)
3268 GNUNET_CORE_disconnect (send_hello_context->peer->daemon->server);
3269 send_hello_context->peer->daemon->server = NULL;
3271 if (send_hello_context->peer->daemon->th != NULL)
3273 GNUNET_TRANSPORT_disconnect (send_hello_context->peer->daemon->th);
3274 send_hello_context->peer->daemon->th = NULL;
3276 if (send_hello_context->core_connect_task != GNUNET_SCHEDULER_NO_TASK)
3278 GNUNET_SCHEDULER_cancel (send_hello_context->core_connect_task);
3279 send_hello_context->core_connect_task = GNUNET_SCHEDULER_NO_TASK;
3281 send_hello_context->pg->outstanding_connects--;
3282 GNUNET_free (send_hello_context);
3286 * For peers that haven't yet connected, notify
3287 * the caller that they have failed (timeout).
3289 * @param cls the 'struct SendHelloContext *'
3290 * @param tc scheduler context
3293 notify_remaining_connections_failed (void *cls,
3294 const struct GNUNET_SCHEDULER_TaskContext
3297 struct SendHelloContext *send_hello_context = cls;
3298 struct GNUNET_TESTING_PeerGroup *pg = send_hello_context->pg;
3299 struct PeerConnection *connection;
3301 GNUNET_CORE_disconnect (send_hello_context->peer->daemon->server);
3302 send_hello_context->peer->daemon->server = NULL;
3304 connection = send_hello_context->peer->connect_peers_head;
3306 while (connection != NULL)
3308 if (pg->notify_connection != NULL)
3310 pg->notify_connection (pg->notify_connection_cls, &send_hello_context->peer->daemon->id, &pg->peers[connection->index].daemon->id, 0, /* FIXME */
3311 send_hello_context->peer->daemon->cfg,
3312 pg->peers[connection->index].daemon->cfg,
3313 send_hello_context->peer->daemon,
3314 pg->peers[connection->index].daemon,
3315 "Peers failed to connect (timeout)");
3317 GNUNET_CONTAINER_DLL_remove (send_hello_context->peer->connect_peers_head,
3318 send_hello_context->peer->connect_peers_tail,
3320 GNUNET_free (connection);
3321 connection = connection->next;
3323 GNUNET_SCHEDULER_add_now (&free_hello_context, send_hello_context);
3325 other_peer = &pg->peers[connection->index];
3330 * For peers that haven't yet connected, send
3331 * CORE connect requests.
3333 * @param cls the 'struct SendHelloContext *'
3334 * @param tc scheduler context
3337 send_core_connect_requests (void *cls,
3338 const struct GNUNET_SCHEDULER_TaskContext *tc)
3340 struct SendHelloContext *send_hello_context = cls;
3341 struct PeerConnection *conn;
3343 GNUNET_assert (send_hello_context->peer->daemon->server != NULL);
3345 send_hello_context->core_connect_task = GNUNET_SCHEDULER_NO_TASK;
3347 send_hello_context->connect_attempts++;
3348 if (send_hello_context->connect_attempts <
3349 send_hello_context->pg->ct_ctx.connect_attempts)
3351 conn = send_hello_context->peer->connect_peers_head;
3352 while (conn != NULL)
3354 GNUNET_TRANSPORT_try_connect (send_hello_context->peer->daemon->th,
3355 &send_hello_context->pg->peers[conn->
3360 send_hello_context->core_connect_task =
3361 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_divide
3362 (send_hello_context->pg->
3363 ct_ctx.connect_timeout,
3364 send_hello_context->pg->
3365 ct_ctx.connect_attempts),
3366 &send_core_connect_requests,
3367 send_hello_context);
3371 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
3372 "Timeout before all connections created, marking rest as failed!\n");
3373 GNUNET_SCHEDULER_add_now (¬ify_remaining_connections_failed,
3374 send_hello_context);
3380 * Success, connection is up. Signal client our success.
3382 * @param cls our "struct SendHelloContext"
3383 * @param peer identity of the peer that has connected
3384 * @param atsi performance information
3386 * FIXME: remove peers from BOTH lists, call notify twice, should
3387 * double the speed of connections as long as the list iteration
3388 * doesn't take too long!
3391 core_connect_notify (void *cls, const struct GNUNET_PeerIdentity *peer,
3392 const struct GNUNET_ATS_Information *atsi)
3394 struct SendHelloContext *send_hello_context = cls;
3395 struct PeerConnection *connection;
3396 struct GNUNET_TESTING_PeerGroup *pg = send_hello_context->pg;
3399 struct PeerData *other_peer;
3402 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Connected peer %s to peer %s\n",
3403 ctx->d1->shortname, GNUNET_i2s (peer));
3407 memcmp (&send_hello_context->peer->daemon->id, peer,
3408 sizeof (struct GNUNET_PeerIdentity)))
3411 connection = send_hello_context->peer->connect_peers_head;
3416 while ((connection != NULL) &&
3418 memcmp (&pg->peers[connection->index].daemon->id, peer,
3419 sizeof (struct GNUNET_PeerIdentity))))
3421 connection = connection->next;
3424 if (connection == NULL)
3426 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
3427 "Connected peer %s to %s, not in list (no problem(?))\n",
3428 GNUNET_i2s (peer), send_hello_context->peer->daemon->shortname);
3433 other_peer = &pg->peers[connection->index];
3435 if (pg->notify_connection != NULL)
3437 pg->notify_connection (pg->notify_connection_cls, &send_hello_context->peer->daemon->id, peer, 0, /* FIXME */
3438 send_hello_context->peer->daemon->cfg,
3439 pg->peers[connection->index].daemon->cfg,
3440 send_hello_context->peer->daemon,
3441 pg->peers[connection->index].daemon, NULL);
3443 GNUNET_CONTAINER_DLL_remove (send_hello_context->peer->connect_peers_head,
3444 send_hello_context->peer->connect_peers_tail,
3446 GNUNET_free (connection);
3450 /* Notify of reverse connection and remove from other peers list of outstanding */
3451 if (other_peer != NULL)
3453 connection = other_peer->connect_peers_head;
3454 while ((connection != NULL) &&
3456 memcmp (&send_hello_context->peer->daemon->id,
3457 &pg->peers[connection->index].daemon->id,
3458 sizeof (struct GNUNET_PeerIdentity))))
3460 connection = connection->next;
3462 if (connection != NULL)
3464 if (pg->notify_connection != NULL)
3466 pg->notify_connection (pg->notify_connection_cls, peer, &send_hello_context->peer->daemon->id, 0, /* FIXME */
3467 pg->peers[connection->index].daemon->cfg,
3468 send_hello_context->peer->daemon->cfg,
3469 pg->peers[connection->index].daemon,
3470 send_hello_context->peer->daemon, NULL);
3473 GNUNET_CONTAINER_DLL_remove (other_peer->connect_peers_head,
3474 other_peer->connect_peers_tail, connection);
3475 GNUNET_free (connection);
3480 if (send_hello_context->peer->connect_peers_head == NULL)
3482 GNUNET_SCHEDULER_add_now (&free_hello_context, send_hello_context);
3487 * Notify of a successful connection to the core service.
3489 * @param cls a struct SendHelloContext *
3490 * @param server handle to the core service
3491 * @param my_identity the peer identity of this peer
3494 core_init (void *cls, struct GNUNET_CORE_Handle *server,
3495 struct GNUNET_PeerIdentity *my_identity)
3497 struct SendHelloContext *send_hello_context = cls;
3499 send_hello_context->core_ready = GNUNET_YES;
3503 * Function called once a hello has been sent
3504 * to the transport, move on to the next one
3505 * or go away forever.
3507 * @param cls the 'struct SendHelloContext *'
3508 * @param tc scheduler context
3511 hello_sent_callback (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
3513 struct SendHelloContext *send_hello_context = cls;
3515 //unsigned int pg_iter;
3516 if ((tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN) != 0)
3518 GNUNET_free (send_hello_context);
3522 send_hello_context->pg->remaining_hellos--;
3524 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Sent HELLO, have %d remaining!\n",
3525 send_hello_context->pg->remaining_hellos);
3527 if (send_hello_context->peer_pos == NULL) /* All HELLOs (for this peer!) have been transmitted! */
3530 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
3531 "All hellos for this peer sent, disconnecting transport!\n");
3533 GNUNET_assert (send_hello_context->peer->daemon->th != NULL);
3534 GNUNET_TRANSPORT_disconnect (send_hello_context->peer->daemon->th);
3535 send_hello_context->peer->daemon->th = NULL;
3536 GNUNET_assert (send_hello_context->peer->daemon->server == NULL);
3537 send_hello_context->peer->daemon->server =
3538 GNUNET_CORE_connect (send_hello_context->peer->cfg, 1,
3539 send_hello_context, &core_init,
3540 &core_connect_notify, NULL, NULL, NULL, GNUNET_NO,
3541 NULL, GNUNET_NO, no_handlers);
3543 send_hello_context->core_connect_task =
3544 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_divide
3545 (send_hello_context->pg->
3546 ct_ctx.connect_timeout,
3547 send_hello_context->pg->
3548 ct_ctx.connect_attempts),
3549 &send_core_connect_requests,
3550 send_hello_context);
3553 GNUNET_SCHEDULER_add_now (&schedule_send_hellos, send_hello_context);
3557 * Connect to a peer, give it all the HELLO's of those peers
3558 * we will later ask it to connect to.
3560 * @param ct_ctx the overall connection context
3563 schedule_send_hellos (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
3565 struct SendHelloContext *send_hello_context = cls;
3566 struct GNUNET_TESTING_PeerGroup *pg = send_hello_context->pg;
3568 if ((tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN) != 0)
3570 GNUNET_free (send_hello_context);
3574 GNUNET_assert (send_hello_context->peer_pos != NULL); /* All of the HELLO sends to be scheduled have been scheduled! */
3576 if (((send_hello_context->peer->daemon->th == NULL) &&
3577 (pg->outstanding_connects > pg->max_outstanding_connections)) ||
3578 (pg->stop_connects == GNUNET_YES))
3580 #if VERBOSE_TESTING > 2
3581 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
3583 ("Delaying connect, we have too many outstanding connections!\n"));
3585 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply
3586 (GNUNET_TIME_UNIT_MILLISECONDS, 100),
3587 &schedule_send_hellos, send_hello_context);
3591 #if VERBOSE_TESTING > 2
3592 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
3593 _("Creating connection, outstanding_connections is %d\n"),
3594 outstanding_connects);
3596 if (send_hello_context->peer->daemon->th == NULL)
3598 pg->outstanding_connects++; /* Actual TRANSPORT, CORE connections! */
3599 send_hello_context->peer->daemon->th =
3600 GNUNET_TRANSPORT_connect (send_hello_context->peer->cfg, NULL,
3601 send_hello_context, NULL, NULL, NULL);
3604 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
3605 _("Offering HELLO of peer %s to peer %s\n"),
3606 send_hello_context->peer->daemon->shortname,
3607 pg->peers[send_hello_context->peer_pos->index].
3610 GNUNET_TRANSPORT_offer_hello (send_hello_context->peer->daemon->th,
3611 (const struct GNUNET_MessageHeader *)
3612 pg->peers[send_hello_context->peer_pos->
3613 index].daemon->hello,
3614 &hello_sent_callback, send_hello_context);
3615 send_hello_context->peer_pos = send_hello_context->peer_pos->next;
3616 GNUNET_assert (send_hello_context->peer->daemon->th != NULL);
3622 * Internal notification of a connection, kept so that we can ensure some connections
3623 * happen instead of flooding all testing daemons with requests to connect.
3626 internal_connect_notify (void *cls, const struct GNUNET_PeerIdentity *first,
3627 const struct GNUNET_PeerIdentity *second,
3629 const struct GNUNET_CONFIGURATION_Handle *first_cfg,
3630 const struct GNUNET_CONFIGURATION_Handle *second_cfg,
3631 struct GNUNET_TESTING_Daemon *first_daemon,
3632 struct GNUNET_TESTING_Daemon *second_daemon,
3635 struct ConnectContext *connect_ctx = cls;
3636 struct ConnectTopologyContext *ct_ctx = connect_ctx->ct_ctx;
3637 struct GNUNET_TESTING_PeerGroup *pg = ct_ctx->pg;
3638 struct PeerConnection *connection;
3640 GNUNET_assert (NULL != connect_ctx->cc);
3641 connect_ctx->cc = NULL;
3642 GNUNET_assert (0 < pg->outstanding_connects);
3643 pg->outstanding_connects--;
3644 GNUNET_CONTAINER_DLL_remove (pg->cc_head, pg->cc_tail, connect_ctx);
3646 * Check whether the inverse connection has been scheduled yet,
3647 * if not, we can remove it from the other peers list and avoid
3648 * even trying to connect them again!
3650 connection = pg->peers[connect_ctx->second_index].connect_peers_head;
3655 while ((connection != NULL) &&
3657 memcmp (first, &pg->peers[connection->index].daemon->id,
3658 sizeof (struct GNUNET_PeerIdentity))))
3659 connection = connection->next;
3661 if (connection != NULL) /* Can safely remove! */
3663 GNUNET_assert (0 < ct_ctx->remaining_connections);
3664 ct_ctx->remaining_connections--;
3665 if (pg->notify_connection != NULL) /* Notify of reverse connection */
3666 pg->notify_connection (pg->notify_connection_cls, second, first, distance,
3667 second_cfg, first_cfg, second_daemon, first_daemon,
3670 GNUNET_CONTAINER_DLL_remove (pg->
3672 second_index].connect_peers_head,
3673 pg->peers[connect_ctx->
3674 second_index].connect_peers_tail,
3676 GNUNET_free (connection);
3679 if (ct_ctx->remaining_connections == 0)
3681 if (ct_ctx->notify_connections_done != NULL)
3683 ct_ctx->notify_connections_done (ct_ctx->notify_cls, NULL);
3684 ct_ctx->notify_connections_done = NULL;
3688 preschedule_connect (pg);
3690 if (pg->notify_connection != NULL)
3691 pg->notify_connection (pg->notify_connection_cls, first, second, distance,
3692 first_cfg, second_cfg, first_daemon, second_daemon,
3694 GNUNET_free (connect_ctx);
3698 * Either delay a connection (because there are too many outstanding)
3699 * or schedule it for right now.
3701 * @param cls a connection context
3702 * @param tc the task runtime context
3705 schedule_connect (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
3707 struct ConnectContext *connect_context = cls;
3708 struct GNUNET_TESTING_PeerGroup *pg = connect_context->ct_ctx->pg;
3710 connect_context->task = GNUNET_SCHEDULER_NO_TASK;
3711 if ((tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN) != 0)
3714 if ((pg->outstanding_connects > pg->max_outstanding_connections) ||
3715 (pg->stop_connects == GNUNET_YES))
3718 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
3720 ("Delaying connect, we have too many outstanding connections!\n"));
3722 connect_context->task =
3723 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply
3724 (GNUNET_TIME_UNIT_MILLISECONDS, 100),
3725 &schedule_connect, connect_context);
3729 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
3731 ("Creating connection, outstanding_connections is %d (max %d)\n"),
3732 pg->outstanding_connects, pg->max_outstanding_connections);
3734 pg->outstanding_connects++;
3735 pg->total_connects_scheduled++;
3736 GNUNET_assert (NULL == connect_context->cc);
3737 connect_context->cc =
3738 GNUNET_TESTING_daemons_connect (pg->
3739 peers[connect_context->
3740 first_index].daemon,
3741 pg->peers[connect_context->
3742 second_index].daemon,
3743 connect_context->ct_ctx->connect_timeout,
3744 connect_context->ct_ctx->connect_attempts,
3750 &internal_connect_notify,
3757 * Iterator for actually scheduling connections to be created
3758 * between two peers.
3760 * @param cls closure, a GNUNET_TESTING_Daemon
3761 * @param key the key the second Daemon was stored under
3762 * @param value the GNUNET_TESTING_Daemon that the first is to connect to
3764 * @return GNUNET_YES to continue iteration
3767 connect_iterator (void *cls, const GNUNET_HashCode * key, void *value)
3769 struct ConnectTopologyContext *ct_ctx = cls;
3770 struct PeerData *first = ct_ctx->first;
3771 struct GNUNET_TESTING_Daemon *second = value;
3772 struct ConnectContext *connect_context;
3774 connect_context = GNUNET_malloc (sizeof (struct ConnectContext));
3775 connect_context->first = first->daemon;
3776 connect_context->second = second;
3777 connect_context->ct_ctx = ct_ctx;
3778 connect_context->task =
3779 GNUNET_SCHEDULER_add_now (&schedule_connect, connect_context);
3780 GNUNET_CONTAINER_DLL_insert (ct_ctx->pg->cc_head, ct_ctx->pg->cc_tail,
3788 * Iterator for copying all entries in the allowed hashmap to the
3791 * @param cls closure, a GNUNET_TESTING_Daemon
3792 * @param key the key the second Daemon was stored under
3793 * @param value the GNUNET_TESTING_Daemon that the first is to connect to
3795 * @return GNUNET_YES to continue iteration
3798 copy_topology_iterator (void *cls, const GNUNET_HashCode * key, void *value)
3800 struct PeerData *first = cls;
3802 GNUNET_assert (GNUNET_OK ==
3803 GNUNET_CONTAINER_multihashmap_put (first->connect_peers, key,
3805 GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY));
3812 * Make the peers to connect the same as those that are allowed to be
3815 * @param pg the peer group
3818 copy_allowed_topology (struct GNUNET_TESTING_PeerGroup *pg)
3820 unsigned int pg_iter;
3825 struct PeerConnection *iter;
3829 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
3832 iter = pg->peers[pg_iter].allowed_peers_head;
3833 while (iter != NULL)
3835 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
3836 "Creating connection between %d and %d\n", pg_iter,
3838 total += add_connections (pg, pg_iter, iter->index, CONNECT, GNUNET_YES);
3839 //total += add_actual_connections(pg, pg_iter, iter->index);
3844 GNUNET_CONTAINER_multihashmap_iterate (pg->peers[pg_iter].allowed_peers,
3845 ©_topology_iterator,
3846 &pg->peers[pg_iter]);
3848 if (GNUNET_SYSERR == ret)
3849 return GNUNET_SYSERR;
3851 total = total + ret;
3858 * Connect the topology as specified by the PeerConnection's
3859 * of each peer in the peer group
3861 * @param pg the peer group we are dealing with
3862 * @param connect_timeout how long try connecting two peers
3863 * @param connect_attempts how many times (max) to attempt
3864 * @param notify_callback callback to notify when finished
3865 * @param notify_cls closure for notify callback
3867 * @return the number of connections that will be attempted
3870 connect_topology (struct GNUNET_TESTING_PeerGroup *pg,
3871 struct GNUNET_TIME_Relative connect_timeout,
3872 unsigned int connect_attempts,
3873 GNUNET_TESTING_NotifyCompletion notify_callback,
3876 unsigned int pg_iter;
3880 struct PeerConnection *connection_iter;
3883 struct SendHelloContext *send_hello_context;
3887 pg->ct_ctx.notify_connections_done = notify_callback;
3888 pg->ct_ctx.notify_cls = notify_cls;
3891 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
3894 connection_iter = pg->peers[pg_iter].connect_peers_head;
3895 while (connection_iter != NULL)
3897 connection_iter = connection_iter->next;
3902 GNUNET_CONTAINER_multihashmap_size (pg->peers[pg_iter].connect_peers);
3909 pg->ct_ctx.connect_timeout = connect_timeout;
3910 pg->ct_ctx.connect_attempts = connect_attempts;
3911 pg->ct_ctx.remaining_connections = total;
3914 /* First give all peers the HELLO's of other peers (connect to first peer's transport service, give HELLO's of other peers, continue...) */
3915 pg->remaining_hellos = total;
3916 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
3918 send_hello_context = GNUNET_malloc (sizeof (struct SendHelloContext));
3919 send_hello_context->peer = &pg->peers[pg_iter];
3920 send_hello_context->peer_pos = pg->peers[pg_iter].connect_peers_head;
3921 send_hello_context->pg = pg;
3922 GNUNET_SCHEDULER_add_now (&schedule_send_hellos, send_hello_context);
3925 for (pg_iter = 0; pg_iter < pg->max_outstanding_connections; pg_iter++)
3927 preschedule_connect (pg);
3935 * Takes a peer group and creates a topology based on the
3936 * one specified. Creates a topology means generates friend
3937 * files for the peers so they can only connect to those allowed
3938 * by the topology. This will only have an effect once peers
3939 * are started if the FRIENDS_ONLY option is set in the base
3940 * config. Also takes an optional restrict topology which
3941 * disallows connections based on particular transports
3942 * UNLESS they are specified in the restricted topology.
3944 * @param pg the peer group struct representing the running peers
3945 * @param topology which topology to connect the peers in
3946 * @param restrict_topology disallow restrict_transports transport
3947 * connections to peers NOT in this topology
3948 * use GNUNET_TESTING_TOPOLOGY_NONE for no restrictions
3949 * @param restrict_transports space delimited list of transports to blacklist
3950 * to create restricted topology
3952 * @return the maximum number of connections were all allowed peers
3953 * connected to each other
3956 GNUNET_TESTING_create_topology (struct GNUNET_TESTING_PeerGroup *pg,
3957 enum GNUNET_TESTING_Topology topology,
3958 enum GNUNET_TESTING_Topology restrict_topology,
3959 const char *restrict_transports)
3963 unsigned int num_connections;
3964 int unblacklisted_connections;
3966 struct PeerConnection *conn_iter;
3967 struct PeerConnection *temp_conn;
3973 for (i = 0; i < pg->total; i++)
3975 pg->peers[i].allowed_peers = GNUNET_CONTAINER_multihashmap_create (100);
3976 pg->peers[i].connect_peers = GNUNET_CONTAINER_multihashmap_create (100);
3977 pg->peers[i].blacklisted_peers = GNUNET_CONTAINER_multihashmap_create (100);
3978 pg->peers[i].pg = pg;
3984 case GNUNET_TESTING_TOPOLOGY_CLIQUE:
3985 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, _("Creating clique topology\n"));
3986 num_connections = create_clique (pg, &add_connections, ALLOWED, GNUNET_NO);
3988 case GNUNET_TESTING_TOPOLOGY_SMALL_WORLD_RING:
3989 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
3990 _("Creating small world (ring) topology\n"));
3991 num_connections = create_small_world_ring (pg, &add_connections, ALLOWED);
3993 case GNUNET_TESTING_TOPOLOGY_SMALL_WORLD:
3994 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
3995 _("Creating small world (2d-torus) topology\n"));
3996 num_connections = create_small_world (pg, &add_connections, ALLOWED);
3998 case GNUNET_TESTING_TOPOLOGY_RING:
3999 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, _("Creating ring topology\n"));
4000 num_connections = create_ring (pg, &add_connections, ALLOWED);
4002 case GNUNET_TESTING_TOPOLOGY_2D_TORUS:
4003 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, _("Creating 2d torus topology\n"));
4004 num_connections = create_2d_torus (pg, &add_connections, ALLOWED);
4006 case GNUNET_TESTING_TOPOLOGY_ERDOS_RENYI:
4007 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, _("Creating Erdos-Renyi topology\n"));
4008 num_connections = create_erdos_renyi (pg, &add_connections, ALLOWED);
4010 case GNUNET_TESTING_TOPOLOGY_INTERNAT:
4011 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, _("Creating InterNAT topology\n"));
4012 num_connections = create_nated_internet (pg, &add_connections, ALLOWED);
4014 case GNUNET_TESTING_TOPOLOGY_SCALE_FREE:
4015 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, _("Creating Scale Free topology\n"));
4016 num_connections = create_scale_free (pg, &add_connections, ALLOWED);
4018 case GNUNET_TESTING_TOPOLOGY_LINE:
4019 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
4020 _("Creating straight line topology\n"));
4021 num_connections = create_line (pg, &add_connections, ALLOWED);
4023 case GNUNET_TESTING_TOPOLOGY_FROM_FILE:
4024 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, _("Creating topology from file!\n"));
4026 GNUNET_CONFIGURATION_get_value_string (pg->cfg, "testing",
4027 "topology_file", &filename))
4029 create_from_file (pg, filename, &add_connections, ALLOWED);
4032 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
4033 "Missing configuration option TESTING:TOPOLOGY_FILE for creating topology from file!\n");
4034 num_connections = 0;
4037 case GNUNET_TESTING_TOPOLOGY_NONE:
4038 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
4040 ("Creating no allowed topology (all peers can connect at core level)\n"));
4041 num_connections = pg->total * pg->total; /* Clique is allowed! */
4044 num_connections = 0;
4049 GNUNET_CONFIGURATION_get_value_yesno (pg->cfg, "TESTING", "F2F"))
4051 ret = create_and_copy_friend_files (pg);
4052 if (ret != GNUNET_OK)
4054 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
4055 _("Failed during friend file copying!\n"));
4056 return GNUNET_SYSERR;
4060 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
4061 _("Friend files created/copied successfully!\n"));
4065 /* Use the create clique method to initially set all connections as blacklisted. */
4066 if ((restrict_topology != GNUNET_TESTING_TOPOLOGY_NONE) &&
4067 (restrict_topology != GNUNET_TESTING_TOPOLOGY_FROM_FILE))
4068 create_clique (pg, &add_connections, BLACKLIST, GNUNET_NO);
4070 return num_connections;
4072 unblacklisted_connections = 0;
4073 /* Un-blacklist connections as per the topology specified */
4074 switch (restrict_topology)
4076 case GNUNET_TESTING_TOPOLOGY_CLIQUE:
4077 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
4078 _("Blacklisting all but clique topology\n"));
4079 unblacklisted_connections =
4080 create_clique (pg, &remove_connections, BLACKLIST, GNUNET_NO);
4082 case GNUNET_TESTING_TOPOLOGY_SMALL_WORLD_RING:
4083 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
4084 _("Blacklisting all but small world (ring) topology\n"));
4085 unblacklisted_connections =
4086 create_small_world_ring (pg, &remove_connections, BLACKLIST);
4088 case GNUNET_TESTING_TOPOLOGY_SMALL_WORLD:
4089 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
4090 _("Blacklisting all but small world (2d-torus) topology\n"));
4091 unblacklisted_connections =
4092 create_small_world (pg, &remove_connections, BLACKLIST);
4094 case GNUNET_TESTING_TOPOLOGY_RING:
4095 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
4096 _("Blacklisting all but ring topology\n"));
4097 unblacklisted_connections =
4098 create_ring (pg, &remove_connections, BLACKLIST);
4100 case GNUNET_TESTING_TOPOLOGY_2D_TORUS:
4101 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
4102 _("Blacklisting all but 2d torus topology\n"));
4103 unblacklisted_connections =
4104 create_2d_torus (pg, &remove_connections, BLACKLIST);
4106 case GNUNET_TESTING_TOPOLOGY_ERDOS_RENYI:
4107 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
4108 _("Blacklisting all but Erdos-Renyi topology\n"));
4109 unblacklisted_connections =
4110 create_erdos_renyi (pg, &remove_connections, BLACKLIST);
4112 case GNUNET_TESTING_TOPOLOGY_INTERNAT:
4113 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
4114 _("Blacklisting all but InterNAT topology\n"));
4117 for (off = 0; off < pg->total; off++)
4119 conn_iter = pg->peers[off].allowed_peers_head;
4120 while (conn_iter != NULL)
4122 temp_conn = conn_iter->next;
4123 GNUNET_free (conn_iter);
4124 conn_iter = temp_conn;
4126 pg->peers[off].allowed_peers_head = NULL;
4127 pg->peers[off].allowed_peers_tail = NULL;
4129 conn_iter = pg->peers[off].connect_peers_head;
4130 while (conn_iter != NULL)
4132 temp_conn = conn_iter->next;
4133 GNUNET_free (conn_iter);
4134 conn_iter = temp_conn;
4136 pg->peers[off].connect_peers_head = NULL;
4137 pg->peers[off].connect_peers_tail = NULL;
4139 unblacklisted_connections =
4140 create_nated_internet_copy (pg, &remove_connections, BLACKLIST);
4142 unblacklisted_connections =
4143 create_nated_internet (pg, &remove_connections, BLACKLIST);
4147 case GNUNET_TESTING_TOPOLOGY_SCALE_FREE:
4148 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
4149 _("Blacklisting all but Scale Free topology\n"));
4150 unblacklisted_connections =
4151 create_scale_free (pg, &remove_connections, BLACKLIST);
4153 case GNUNET_TESTING_TOPOLOGY_LINE:
4154 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
4155 _("Blacklisting all but straight line topology\n"));
4156 unblacklisted_connections =
4157 create_line (pg, &remove_connections, BLACKLIST);
4162 if ((unblacklisted_connections > 0) && (restrict_transports != NULL))
4164 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Creating blacklist with `%s'\n",
4165 restrict_transports);
4166 ret = create_and_copy_blacklist_files (pg, restrict_transports);
4167 if (ret != GNUNET_OK)
4169 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
4170 _("Failed during blacklist file copying!\n"));
4175 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
4176 _("Blacklist files created/copied successfully!\n"));
4179 return num_connections;
4184 * Iterator for choosing random peers to connect.
4186 * @param cls closure, a RandomContext
4187 * @param key the key the second Daemon was stored under
4188 * @param value the GNUNET_TESTING_Daemon that the first is to connect to
4190 * @return GNUNET_YES to continue iteration
4193 random_connect_iterator (void *cls, const GNUNET_HashCode * key, void *value)
4195 struct RandomContext *random_ctx = cls;
4196 double random_number;
4197 uint32_t second_pos;
4198 GNUNET_HashCode first_hash;
4202 GNUNET_CRYPTO_random_u64 (GNUNET_CRYPTO_QUALITY_WEAK,
4203 UINT64_MAX)) / ((double) UINT64_MAX);
4204 if (random_number < random_ctx->percentage)
4206 GNUNET_assert (GNUNET_OK ==
4207 GNUNET_CONTAINER_multihashmap_put (random_ctx->
4208 first->connect_peers_working_set,
4210 GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY));
4213 /* Now we have considered this particular connection, remove it from the second peer so it's not double counted */
4214 uid_from_hash (key, &second_pos);
4215 hash_from_uid (random_ctx->first_uid, &first_hash);
4216 GNUNET_assert (random_ctx->pg->total > second_pos);
4217 GNUNET_assert (GNUNET_YES ==
4218 GNUNET_CONTAINER_multihashmap_remove (random_ctx->
4220 [second_pos].connect_peers,
4229 * Iterator for adding at least X peers to a peers connection set.
4231 * @param cls closure, MinimumContext
4232 * @param key the key the second Daemon was stored under
4233 * @param value the GNUNET_TESTING_Daemon that the first is to connect to
4235 * @return GNUNET_YES to continue iteration
4238 minimum_connect_iterator (void *cls, const GNUNET_HashCode * key, void *value)
4240 struct MinimumContext *min_ctx = cls;
4241 uint32_t second_pos;
4242 GNUNET_HashCode first_hash;
4245 if (GNUNET_CONTAINER_multihashmap_size
4246 (min_ctx->first->connect_peers_working_set) < min_ctx->num_to_add)
4248 for (i = 0; i < min_ctx->num_to_add; i++)
4250 if (min_ctx->pg_array[i] == min_ctx->current)
4252 GNUNET_assert (GNUNET_OK ==
4253 GNUNET_CONTAINER_multihashmap_put (min_ctx->
4254 first->connect_peers_working_set,
4256 GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY));
4257 uid_from_hash (key, &second_pos);
4258 hash_from_uid (min_ctx->first_uid, &first_hash);
4259 GNUNET_assert (min_ctx->pg->total > second_pos);
4260 GNUNET_assert (GNUNET_OK ==
4261 GNUNET_CONTAINER_multihashmap_put (min_ctx->
4263 [second_pos].connect_peers_working_set,
4267 GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY));
4268 /* Now we have added this particular connection, remove it from the second peer's map so it's not double counted */
4269 GNUNET_assert (GNUNET_YES ==
4270 GNUNET_CONTAINER_multihashmap_remove (min_ctx->
4272 [second_pos].connect_peers,
4282 return GNUNET_NO; /* We can stop iterating, we have enough peers! */
4287 * Iterator for adding peers to a connection set based on a depth first search.
4289 * @param cls closure, MinimumContext
4290 * @param key the key the second daemon was stored under
4291 * @param value the GNUNET_TESTING_Daemon that the first is to connect to
4293 * @return GNUNET_YES to continue iteration
4296 dfs_connect_iterator (void *cls, const GNUNET_HashCode * key, void *value)
4298 struct DFSContext *dfs_ctx = cls;
4299 GNUNET_HashCode first_hash;
4301 if (dfs_ctx->current == dfs_ctx->chosen)
4303 GNUNET_assert (GNUNET_OK ==
4304 GNUNET_CONTAINER_multihashmap_put (dfs_ctx->
4305 first->connect_peers_working_set,
4307 GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY));
4308 uid_from_hash (key, &dfs_ctx->second_uid);
4309 hash_from_uid (dfs_ctx->first_uid, &first_hash);
4310 GNUNET_assert (GNUNET_OK ==
4311 GNUNET_CONTAINER_multihashmap_put (dfs_ctx->
4313 second_uid].connect_peers_working_set,
4315 dfs_ctx->first->daemon,
4316 GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY));
4317 GNUNET_assert (GNUNET_YES ==
4318 GNUNET_CONTAINER_multihashmap_remove (dfs_ctx->
4320 [dfs_ctx->second_uid].connect_peers,
4324 /* Can't remove second from first yet because we are currently iterating, hence the return value in the DFSContext! */
4325 return GNUNET_NO; /* We have found our peer, don't iterate more */
4334 * From the set of connections possible, choose percentage percent of connections
4335 * to actually connect.
4337 * @param pg the peergroup we are dealing with
4338 * @param percentage what percent of total connections to make
4341 choose_random_connections (struct GNUNET_TESTING_PeerGroup *pg,
4347 struct PeerConnection *conn_iter;
4348 double random_number;
4350 struct RandomContext random_ctx;
4353 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
4356 conn_iter = pg->peers[pg_iter].connect_peers_head;
4357 while (conn_iter != NULL)
4361 GNUNET_CRYPTO_random_u64 (GNUNET_CRYPTO_QUALITY_WEAK,
4362 UINT64_MAX)) / ((double) UINT64_MAX);
4363 if (random_number < percentage)
4365 add_connections (pg, pg_iter, conn_iter->index, WORKING_SET,
4368 conn_iter = conn_iter->next;
4371 random_ctx.first_uid = pg_iter;
4372 random_ctx.first = &pg->peers[pg_iter];
4373 random_ctx.percentage = percentage;
4375 pg->peers[pg_iter].connect_peers_working_set =
4376 GNUNET_CONTAINER_multihashmap_create (pg->total);
4377 GNUNET_CONTAINER_multihashmap_iterate (pg->peers[pg_iter].connect_peers,
4378 &random_connect_iterator,
4380 /* Now remove the old connections */
4381 GNUNET_CONTAINER_multihashmap_destroy (pg->peers[pg_iter].connect_peers);
4382 /* And replace with the random set */
4383 pg->peers[pg_iter].connect_peers =
4384 pg->peers[pg_iter].connect_peers_working_set;
4388 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
4390 conn_iter = pg->peers[pg_iter].connect_peers_head;
4391 while (pg->peers[pg_iter].connect_peers_head != NULL)
4392 remove_connections (pg, pg_iter,
4393 pg->peers[pg_iter].connect_peers_head->index, CONNECT,
4396 pg->peers[pg_iter].connect_peers_head =
4397 pg->peers[pg_iter].connect_peers_working_set_head;
4398 pg->peers[pg_iter].connect_peers_tail =
4399 pg->peers[pg_iter].connect_peers_working_set_tail;
4400 pg->peers[pg_iter].connect_peers_working_set_head = NULL;
4401 pg->peers[pg_iter].connect_peers_working_set_tail = NULL;
4406 * Count the number of connections in a linked list of connections.
4408 * @param conn_list the connection list to get the count of
4410 * @return the number of elements in the list
4413 count_connections (struct PeerConnection *conn_list)
4415 struct PeerConnection *iter;
4420 while (iter != NULL)
4429 count_workingset_connections (struct GNUNET_TESTING_PeerGroup *pg)
4432 unsigned int pg_iter;
4435 struct PeerConnection *conn_iter;
4439 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
4442 conn_iter = pg->peers[pg_iter].connect_peers_working_set_head;
4443 while (conn_iter != NULL)
4446 conn_iter = conn_iter->next;
4450 GNUNET_CONTAINER_multihashmap_size (pg->
4452 [pg_iter].connect_peers_working_set);
4460 count_allowed_connections (struct GNUNET_TESTING_PeerGroup *pg)
4463 unsigned int pg_iter;
4466 struct PeerConnection *conn_iter;
4470 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
4473 conn_iter = pg->peers[pg_iter].allowed_peers_head;
4474 while (conn_iter != NULL)
4477 conn_iter = conn_iter->next;
4481 GNUNET_CONTAINER_multihashmap_size (pg->peers[pg_iter].allowed_peers);
4489 * From the set of connections possible, choose at least num connections per
4492 * @param pg the peergroup we are dealing with
4493 * @param num how many connections at least should each peer have (if possible)?
4496 choose_minimum (struct GNUNET_TESTING_PeerGroup *pg, unsigned int num)
4499 struct MinimumContext minimum_ctx;
4501 struct PeerConnection *conn_iter;
4502 unsigned int temp_list_size;
4505 uint32_t random; /* Random list entry to connect peer to */
4510 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
4512 temp_list_size = count_connections (pg->peers[pg_iter].connect_peers_head);
4513 if (temp_list_size == 0)
4515 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Peer %d has 0 connections!?!?\n",
4519 for (i = 0; i < num; i++)
4522 GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK, temp_list_size);
4523 conn_iter = pg->peers[pg_iter].connect_peers_head;
4524 for (count = 0; count < random; count++)
4525 conn_iter = conn_iter->next;
4526 /* We now have a random connection, connect it! */
4527 GNUNET_assert (conn_iter != NULL);
4528 add_connections (pg, pg_iter, conn_iter->index, WORKING_SET, GNUNET_YES);
4532 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
4534 pg->peers[pg_iter].connect_peers_working_set =
4535 GNUNET_CONTAINER_multihashmap_create (num);
4538 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
4540 minimum_ctx.first_uid = pg_iter;
4541 minimum_ctx.pg_array =
4542 GNUNET_CRYPTO_random_permute (GNUNET_CRYPTO_QUALITY_WEAK,
4543 GNUNET_CONTAINER_multihashmap_size
4544 (pg->peers[pg_iter].connect_peers));
4545 minimum_ctx.first = &pg->peers[pg_iter];
4546 minimum_ctx.pg = pg;
4547 minimum_ctx.num_to_add = num;
4548 minimum_ctx.current = 0;
4549 GNUNET_CONTAINER_multihashmap_iterate (pg->peers[pg_iter].connect_peers,
4550 &minimum_connect_iterator,
4554 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
4556 /* Remove the "old" connections */
4557 GNUNET_CONTAINER_multihashmap_destroy (pg->peers[pg_iter].connect_peers);
4558 /* And replace with the working set */
4559 pg->peers[pg_iter].connect_peers =
4560 pg->peers[pg_iter].connect_peers_working_set;
4563 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
4565 while (pg->peers[pg_iter].connect_peers_head != NULL)
4567 conn_iter = pg->peers[pg_iter].connect_peers_head;
4568 GNUNET_CONTAINER_DLL_remove (pg->peers[pg_iter].connect_peers_head,
4569 pg->peers[pg_iter].connect_peers_tail,
4571 GNUNET_free (conn_iter);
4572 /*remove_connections(pg, pg_iter, pg->peers[pg_iter].connect_peers_head->index, CONNECT, GNUNET_YES); */
4575 pg->peers[pg_iter].connect_peers_head =
4576 pg->peers[pg_iter].connect_peers_working_set_head;
4577 pg->peers[pg_iter].connect_peers_tail =
4578 pg->peers[pg_iter].connect_peers_working_set_tail;
4579 pg->peers[pg_iter].connect_peers_working_set_head = NULL;
4580 pg->peers[pg_iter].connect_peers_working_set_tail = NULL;
4585 struct FindClosestContext
4588 * The currently known closest peer.
4590 struct GNUNET_TESTING_Daemon *closest;
4593 * The info for the peer we are adding connections for.
4595 struct PeerData *curr_peer;
4598 * The distance (bits) between the current
4599 * peer and the currently known closest.
4601 unsigned int closest_dist;
4604 * The offset of the closest known peer in
4607 unsigned int closest_num;
4611 * Iterator over hash map entries of the allowed
4612 * peer connections. Find the closest, not already
4613 * connected peer and return it.
4615 * @param cls closure (struct FindClosestContext)
4616 * @param key current key code (hash of offset in pg)
4617 * @param value value in the hash map - a GNUNET_TESTING_Daemon
4618 * @return GNUNET_YES if we should continue to
4623 find_closest_peers (void *cls, const GNUNET_HashCode * key, void *value)
4625 struct FindClosestContext *closest_ctx = cls;
4626 struct GNUNET_TESTING_Daemon *daemon = value;
4628 if (((closest_ctx->closest == NULL) ||
4629 (GNUNET_CRYPTO_hash_matching_bits
4630 (&daemon->id.hashPubKey,
4631 &closest_ctx->curr_peer->daemon->id.hashPubKey) >
4632 closest_ctx->closest_dist)) &&
4634 GNUNET_CONTAINER_multihashmap_contains (closest_ctx->
4635 curr_peer->connect_peers, key)))
4637 closest_ctx->closest_dist =
4638 GNUNET_CRYPTO_hash_matching_bits (&daemon->id.hashPubKey,
4639 &closest_ctx->curr_peer->daemon->
4641 closest_ctx->closest = daemon;
4642 uid_from_hash (key, &closest_ctx->closest_num);
4648 * From the set of connections possible, choose at num connections per
4649 * peer based on depth which are closest out of those allowed. Guaranteed
4650 * to add num peers to connect to, provided there are that many peers
4651 * in the underlay topology to connect to.
4653 * @param pg the peergroup we are dealing with
4654 * @param num how many connections at least should each peer have (if possible)?
4655 * @param proc processor to actually add the connections
4656 * @param list the peer list to use
4659 add_closest (struct GNUNET_TESTING_PeerGroup *pg, unsigned int num,
4660 GNUNET_TESTING_ConnectionProcessor proc, enum PeerLists list)
4665 struct FindClosestContext closest_ctx;
4670 for (i = 0; i < num; i++) /* Each time find a closest peer (from those available) */
4672 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
4674 closest_ctx.curr_peer = &pg->peers[pg_iter];
4675 closest_ctx.closest = NULL;
4676 closest_ctx.closest_dist = 0;
4677 closest_ctx.closest_num = 0;
4678 GNUNET_CONTAINER_multihashmap_iterate (pg->peers[pg_iter].allowed_peers,
4679 &find_closest_peers, &closest_ctx);
4680 if (closest_ctx.closest != NULL)
4682 GNUNET_assert (closest_ctx.closest_num < pg->total);
4683 proc (pg, pg_iter, closest_ctx.closest_num, list);
4691 * From the set of connections possible, choose at least num connections per
4692 * peer based on depth first traversal of peer connections. If DFS leaves
4693 * peers unconnected, ensure those peers get connections.
4695 * @param pg the peergroup we are dealing with
4696 * @param num how many connections at least should each peer have (if possible)?
4699 perform_dfs (struct GNUNET_TESTING_PeerGroup *pg, unsigned int num)
4703 uint32_t starting_peer;
4704 uint32_t least_connections;
4705 uint32_t random_connection;
4708 unsigned int temp_count;
4709 struct PeerConnection *peer_iter;
4711 struct DFSContext dfs_ctx;
4712 GNUNET_HashCode second_hash;
4718 while ((count_workingset_connections (pg) < num * pg->total) &&
4719 (count_allowed_connections (pg) > 0))
4721 if (dfs_count % pg->total == 0) /* Restart the DFS at some weakly connected peer */
4723 least_connections = -1; /* Set to very high number */
4724 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
4727 count_connections (pg->
4728 peers[pg_iter].connect_peers_working_set_head);
4729 if (temp_count < least_connections)
4731 starting_peer = pg_iter;
4732 least_connections = temp_count;
4738 count_connections (pg->peers[starting_peer].connect_peers_head);
4739 if (temp_count == 0)
4740 continue; /* FIXME: infinite loop? */
4743 GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK, temp_count);
4745 peer_iter = pg->peers[starting_peer].connect_peers_head;
4746 while (temp_count < random_connection)
4748 peer_iter = peer_iter->next;
4751 GNUNET_assert (peer_iter != NULL);
4752 add_connections (pg, starting_peer, peer_iter->index, WORKING_SET,
4754 remove_connections (pg, starting_peer, peer_iter->index, CONNECT,
4756 starting_peer = peer_iter->index;
4761 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
4763 pg->peers[pg_iter].connect_peers_working_set =
4764 GNUNET_CONTAINER_multihashmap_create (num);
4769 while ((count_workingset_connections (pg) < num * pg->total) &&
4770 (count_allowed_connections (pg) > 0))
4772 if (dfs_count % pg->total == 0) /* Restart the DFS at some weakly connected peer */
4774 least_connections = -1; /* Set to very high number */
4775 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
4777 if (GNUNET_CONTAINER_multihashmap_size
4778 (pg->peers[pg_iter].connect_peers_working_set) < least_connections)
4780 starting_peer = pg_iter;
4782 GNUNET_CONTAINER_multihashmap_size (pg->
4784 [pg_iter].connect_peers_working_set);
4789 if (GNUNET_CONTAINER_multihashmap_size (pg->peers[starting_peer].connect_peers) == 0) /* Ensure there is at least one peer left to connect! */
4795 /* Choose a random peer from the chosen peers set of connections to add */
4797 GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK,
4798 GNUNET_CONTAINER_multihashmap_size (pg->peers
4799 [starting_peer].connect_peers));
4800 dfs_ctx.first_uid = starting_peer;
4801 dfs_ctx.first = &pg->peers[starting_peer];
4803 dfs_ctx.current = 0;
4805 GNUNET_CONTAINER_multihashmap_iterate (pg->
4806 peers[starting_peer].connect_peers,
4807 &dfs_connect_iterator, &dfs_ctx);
4808 /* Remove the second from the first, since we will be continuing the search and may encounter the first peer again! */
4809 hash_from_uid (dfs_ctx.second_uid, &second_hash);
4810 GNUNET_assert (GNUNET_YES ==
4811 GNUNET_CONTAINER_multihashmap_remove (pg->peers
4812 [starting_peer].connect_peers,
4816 [dfs_ctx.second_uid].daemon));
4817 starting_peer = dfs_ctx.second_uid;
4820 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
4822 /* Remove the "old" connections */
4823 GNUNET_CONTAINER_multihashmap_destroy (pg->peers[pg_iter].connect_peers);
4824 /* And replace with the working set */
4825 pg->peers[pg_iter].connect_peers =
4826 pg->peers[pg_iter].connect_peers_working_set;
4832 * Internal callback for topology information for a particular peer.
4835 internal_topology_callback (void *cls, const struct GNUNET_PeerIdentity *peer,
4836 const struct GNUNET_ATS_Information *atsi,
4837 unsigned int atsi_count)
4839 struct CoreContext *core_ctx = cls;
4840 struct TopologyIterateContext *iter_ctx = core_ctx->iter_context;
4842 if (peer == NULL) /* Either finished, or something went wrong */
4844 iter_ctx->completed++;
4845 iter_ctx->connected--;
4846 /* One core context allocated per iteration, must free! */
4847 GNUNET_free (core_ctx);
4851 iter_ctx->topology_cb (iter_ctx->cls, &core_ctx->daemon->id, peer, NULL);
4854 if (iter_ctx->completed == iter_ctx->total)
4856 iter_ctx->topology_cb (iter_ctx->cls, NULL, NULL, NULL);
4857 /* Once all are done, free the iteration context */
4858 GNUNET_free (iter_ctx);
4863 * Check running topology iteration tasks, if below max start a new one, otherwise
4864 * schedule for some time in the future.
4867 schedule_get_topology (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
4869 struct CoreContext *core_context = cls;
4870 struct TopologyIterateContext *topology_context =
4871 (struct TopologyIterateContext *) core_context->iter_context;
4872 if ((tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN) != 0)
4875 if (topology_context->connected >
4876 topology_context->pg->max_outstanding_connections)
4878 #if VERBOSE_TESTING > 2
4879 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
4881 ("Delaying connect, we have too many outstanding connections!\n"));
4883 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply
4884 (GNUNET_TIME_UNIT_MILLISECONDS, 100),
4885 &schedule_get_topology, core_context);
4889 #if VERBOSE_TESTING > 2
4890 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
4891 _("Creating connection, outstanding_connections is %d\n"),
4892 outstanding_connects);
4894 topology_context->connected++;
4897 GNUNET_CORE_iterate_peers (core_context->daemon->cfg,
4898 &internal_topology_callback, core_context))
4900 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Topology iteration failed.\n");
4901 internal_topology_callback (core_context, NULL, NULL, 0);
4907 * Iterate over all (running) peers in the peer group, retrieve
4908 * all connections that each currently has.
4911 GNUNET_TESTING_get_topology (struct GNUNET_TESTING_PeerGroup *pg,
4912 GNUNET_TESTING_NotifyTopology cb, void *cls)
4914 struct TopologyIterateContext *topology_context;
4915 struct CoreContext *core_ctx;
4917 unsigned int total_count;
4919 /* Allocate a single topology iteration context */
4920 topology_context = GNUNET_malloc (sizeof (struct TopologyIterateContext));
4921 topology_context->topology_cb = cb;
4922 topology_context->cls = cls;
4923 topology_context->pg = pg;
4925 for (i = 0; i < pg->total; i++)
4927 if (pg->peers[i].daemon->running == GNUNET_YES)
4929 /* Allocate one core context per core we need to connect to */
4930 core_ctx = GNUNET_malloc (sizeof (struct CoreContext));
4931 core_ctx->daemon = pg->peers[i].daemon;
4932 /* Set back pointer to topology iteration context */
4933 core_ctx->iter_context = topology_context;
4934 GNUNET_SCHEDULER_add_now (&schedule_get_topology, core_ctx);
4938 if (total_count == 0)
4940 cb (cls, NULL, NULL, "Cannot iterate over topology, no running peers!");
4941 GNUNET_free (topology_context);
4944 topology_context->total = total_count;
4949 * Callback function to process statistic values.
4950 * This handler is here only really to insert a peer
4951 * identity (or daemon) so the statistics can be uniquely
4952 * tied to a single running peer.
4954 * @param cls closure
4955 * @param subsystem name of subsystem that created the statistic
4956 * @param name the name of the datum
4957 * @param value the current value
4958 * @param is_persistent GNUNET_YES if the value is persistent, GNUNET_NO if not
4959 * @return GNUNET_OK to continue, GNUNET_SYSERR to abort iteration
4962 internal_stats_callback (void *cls, const char *subsystem, const char *name,
4963 uint64_t value, int is_persistent)
4965 struct StatsCoreContext *core_context = cls;
4966 struct StatsIterateContext *stats_context =
4967 (struct StatsIterateContext *) core_context->iter_context;
4969 return stats_context->proc (stats_context->cls, &core_context->daemon->id,
4970 subsystem, name, value, is_persistent);
4974 * Internal continuation call for statistics iteration.
4976 * @param cls closure, the CoreContext for this iteration
4977 * @param success whether or not the statistics iterations
4978 * was canceled or not (we don't care)
4981 internal_stats_cont (void *cls, int success)
4983 struct StatsCoreContext *core_context = cls;
4984 struct StatsIterateContext *stats_context =
4985 (struct StatsIterateContext *) core_context->iter_context;
4987 stats_context->connected--;
4988 stats_context->completed++;
4990 if (stats_context->completed == stats_context->total)
4992 stats_context->cont (stats_context->cls, GNUNET_YES);
4993 GNUNET_free (stats_context);
4996 if (core_context->stats_handle != NULL)
4997 GNUNET_STATISTICS_destroy (core_context->stats_handle, GNUNET_NO);
4999 GNUNET_free (core_context);
5003 * Check running topology iteration tasks, if below max start a new one, otherwise
5004 * schedule for some time in the future.
5007 schedule_get_statistics (void *cls,
5008 const struct GNUNET_SCHEDULER_TaskContext *tc)
5010 struct StatsCoreContext *core_context = cls;
5011 struct StatsIterateContext *stats_context =
5012 (struct StatsIterateContext *) core_context->iter_context;
5014 if ((tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN) != 0)
5017 if (stats_context->connected > stats_context->pg->max_outstanding_connections)
5019 #if VERBOSE_TESTING > 2
5020 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
5022 ("Delaying connect, we have too many outstanding connections!\n"));
5024 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply
5025 (GNUNET_TIME_UNIT_MILLISECONDS, 100),
5026 &schedule_get_statistics, core_context);
5030 #if VERBOSE_TESTING > 2
5031 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
5032 _("Creating connection, outstanding_connections is %d\n"),
5033 outstanding_connects);
5036 stats_context->connected++;
5037 core_context->stats_handle =
5038 GNUNET_STATISTICS_create ("testing", core_context->daemon->cfg);
5039 if (core_context->stats_handle == NULL)
5041 internal_stats_cont (core_context, GNUNET_NO);
5045 core_context->stats_get_handle =
5046 GNUNET_STATISTICS_get (core_context->stats_handle, NULL, NULL,
5047 GNUNET_TIME_relative_get_forever (),
5048 &internal_stats_cont, &internal_stats_callback,
5050 if (core_context->stats_get_handle == NULL)
5051 internal_stats_cont (core_context, GNUNET_NO);
5056 struct DuplicateStats
5059 * Next item in the list
5061 struct DuplicateStats *next;
5064 * Nasty string, concatenation of relevant information.
5066 char *unique_string;
5070 * Check whether the combination of port/host/unix domain socket
5071 * already exists in the list of peers being checked for statistics.
5073 * @param pg the peergroup in question
5074 * @param specific_peer the peer we're concerned with
5075 * @param stats_list the list to return to the caller
5077 * @return GNUNET_YES if the statistics instance has been seen already,
5078 * GNUNET_NO if not (and we may have added it to the list)
5081 stats_check_existing (struct GNUNET_TESTING_PeerGroup *pg,
5082 struct PeerData *specific_peer,
5083 struct DuplicateStats **stats_list)
5085 struct DuplicateStats *pos;
5086 char *unix_domain_socket;
5087 unsigned long long port;
5091 GNUNET_CONFIGURATION_get_value_yesno (pg->cfg, "testing",
5092 "single_statistics_per_host"))
5093 return GNUNET_NO; /* Each peer has its own statistics instance, do nothing! */
5097 GNUNET_CONFIGURATION_get_value_string (specific_peer->cfg, "statistics",
5098 "unixpath", &unix_domain_socket))
5102 GNUNET_CONFIGURATION_get_value_number (specific_peer->cfg, "statistics",
5105 GNUNET_free (unix_domain_socket);
5109 if (specific_peer->daemon->hostname != NULL)
5110 GNUNET_asprintf (&to_match, "%s%s%llu", specific_peer->daemon->hostname,
5111 unix_domain_socket, port);
5113 GNUNET_asprintf (&to_match, "%s%llu", unix_domain_socket, port);
5117 if (0 == strcmp (to_match, pos->unique_string))
5119 GNUNET_free (unix_domain_socket);
5120 GNUNET_free (to_match);
5125 pos = GNUNET_malloc (sizeof (struct DuplicateStats));
5126 pos->unique_string = to_match;
5127 pos->next = *stats_list;
5129 GNUNET_free (unix_domain_socket);
5134 * Iterate over all (running) peers in the peer group, retrieve
5135 * all statistics from each.
5137 * @param pg the peergroup to iterate statistics of
5138 * @param cont continuation to call once all stats have been retrieved
5139 * @param proc processing function for each statistic from each peer
5140 * @param cls closure to pass to proc
5144 GNUNET_TESTING_get_statistics (struct GNUNET_TESTING_PeerGroup *pg,
5145 GNUNET_STATISTICS_Callback cont,
5146 GNUNET_TESTING_STATISTICS_Iterator proc,
5149 struct StatsIterateContext *stats_context;
5150 struct StatsCoreContext *core_ctx;
5152 unsigned int total_count;
5153 struct DuplicateStats *stats_list;
5154 struct DuplicateStats *pos;
5158 /* Allocate a single stats iteration context */
5159 stats_context = GNUNET_malloc (sizeof (struct StatsIterateContext));
5160 stats_context->cont = cont;
5161 stats_context->proc = proc;
5162 stats_context->cls = cls;
5163 stats_context->pg = pg;
5166 for (i = 0; i < pg->total; i++)
5168 if ((pg->peers[i].daemon->running == GNUNET_YES) &&
5169 (GNUNET_NO == stats_check_existing (pg, &pg->peers[i], &stats_list)))
5171 /* Allocate one core context per core we need to connect to */
5172 core_ctx = GNUNET_malloc (sizeof (struct StatsCoreContext));
5173 core_ctx->daemon = pg->peers[i].daemon;
5174 /* Set back pointer to topology iteration context */
5175 core_ctx->iter_context = stats_context;
5176 GNUNET_SCHEDULER_add_now (&schedule_get_statistics, core_ctx);
5181 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
5182 "Retrieving stats from %u total instances.\n", total_count);
5183 if (0 != total_count)
5184 stats_context->total = total_count;
5186 GNUNET_free (stats_context);
5187 if (stats_list != NULL)
5192 GNUNET_free (pos->unique_string);
5193 stats_list = pos->next;
5195 pos = stats_list->next;
5202 * Stop the connection process temporarily.
5204 * @param pg the peer group to stop connecting
5207 GNUNET_TESTING_stop_connections (struct GNUNET_TESTING_PeerGroup *pg)
5209 pg->stop_connects = GNUNET_YES;
5213 * Resume the connection process temporarily.
5215 * @param pg the peer group to resume connecting
5218 GNUNET_TESTING_resume_connections (struct GNUNET_TESTING_PeerGroup *pg)
5220 pg->stop_connects = GNUNET_NO;
5224 * There are many ways to connect peers that are supported by this function.
5225 * To connect peers in the same topology that was created via the
5226 * GNUNET_TESTING_create_topology, the topology variable must be set to
5227 * GNUNET_TESTING_TOPOLOGY_NONE. If the topology variable is specified,
5228 * a new instance of that topology will be generated and attempted to be
5229 * connected. This could result in some connections being impossible,
5230 * because some topologies are non-deterministic.
5232 * @param pg the peer group struct representing the running peers
5233 * @param topology which topology to connect the peers in
5234 * @param options options for connecting the topology
5235 * @param option_modifier modifier for options that take a parameter
5236 * @param connect_timeout how long to wait before giving up on connecting
5238 * @param connect_attempts how many times to attempt to connect two peers
5239 * over the connect_timeout duration
5240 * @param notify_callback notification to be called once all connections completed
5241 * @param notify_cls closure for notification callback
5243 * @return the number of connections that will be attempted, GNUNET_SYSERR on error
5246 GNUNET_TESTING_connect_topology (struct GNUNET_TESTING_PeerGroup *pg,
5247 enum GNUNET_TESTING_Topology topology,
5248 enum GNUNET_TESTING_TopologyOption options,
5249 double option_modifier,
5250 struct GNUNET_TIME_Relative connect_timeout,
5251 unsigned int connect_attempts,
5252 GNUNET_TESTING_NotifyCompletion
5253 notify_callback, void *notify_cls)
5257 case GNUNET_TESTING_TOPOLOGY_CLIQUE:
5258 #if VERBOSE_TOPOLOGY
5259 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
5260 _("Creating clique CONNECT topology\n"));
5262 create_clique (pg, &add_connections, CONNECT, GNUNET_NO);
5264 case GNUNET_TESTING_TOPOLOGY_SMALL_WORLD_RING:
5265 #if VERBOSE_TOPOLOGY
5266 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
5267 _("Creating small world (ring) CONNECT topology\n"));
5269 create_small_world_ring (pg, &add_connections, CONNECT);
5271 case GNUNET_TESTING_TOPOLOGY_SMALL_WORLD:
5272 #if VERBOSE_TOPOLOGY
5273 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
5274 _("Creating small world (2d-torus) CONNECT topology\n"));
5276 create_small_world (pg, &add_connections, CONNECT);
5278 case GNUNET_TESTING_TOPOLOGY_RING:
5279 #if VERBOSE_TOPOLOGY
5280 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, _("Creating ring CONNECT topology\n"));
5282 create_ring (pg, &add_connections, CONNECT);
5284 case GNUNET_TESTING_TOPOLOGY_2D_TORUS:
5285 #if VERBOSE_TOPOLOGY
5286 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
5287 _("Creating 2d torus CONNECT topology\n"));
5289 create_2d_torus (pg, &add_connections, CONNECT);
5291 case GNUNET_TESTING_TOPOLOGY_ERDOS_RENYI:
5292 #if VERBOSE_TOPOLOGY
5293 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
5294 _("Creating Erdos-Renyi CONNECT topology\n"));
5296 create_erdos_renyi (pg, &add_connections, CONNECT);
5298 case GNUNET_TESTING_TOPOLOGY_INTERNAT:
5299 #if VERBOSE_TOPOLOGY
5300 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
5301 _("Creating InterNAT CONNECT topology\n"));
5303 create_nated_internet (pg, &add_connections, CONNECT);
5305 case GNUNET_TESTING_TOPOLOGY_SCALE_FREE:
5306 #if VERBOSE_TOPOLOGY
5307 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
5308 _("Creating Scale Free CONNECT topology\n"));
5310 create_scale_free (pg, &add_connections, CONNECT);
5312 case GNUNET_TESTING_TOPOLOGY_LINE:
5313 #if VERBOSE_TOPOLOGY
5314 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
5315 _("Creating straight line CONNECT topology\n"));
5317 create_line (pg, &add_connections, CONNECT);
5319 case GNUNET_TESTING_TOPOLOGY_NONE:
5320 #if VERBOSE_TOPOLOGY
5321 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, _("Creating no CONNECT topology\n"));
5323 copy_allowed_topology (pg);
5326 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
5327 _("Unknown topology specification, can't connect peers!\n"));
5328 return GNUNET_SYSERR;
5333 case GNUNET_TESTING_TOPOLOGY_OPTION_RANDOM:
5334 #if VERBOSE_TOPOLOGY
5335 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
5337 ("Connecting random subset (%'.2f percent) of possible peers\n"),
5338 100 * option_modifier);
5340 choose_random_connections (pg, option_modifier);
5342 case GNUNET_TESTING_TOPOLOGY_OPTION_MINIMUM:
5343 #if VERBOSE_TOPOLOGY
5344 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
5345 _("Connecting a minimum of %u peers each (if possible)\n"),
5346 (unsigned int) option_modifier);
5348 choose_minimum (pg, (unsigned int) option_modifier);
5350 case GNUNET_TESTING_TOPOLOGY_OPTION_DFS:
5351 #if VERBOSE_TOPOLOGY
5352 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
5354 ("Using DFS to connect a minimum of %u peers each (if possible)\n"),
5355 (unsigned int) option_modifier);
5358 perform_dfs (pg, (int) option_modifier);
5361 case GNUNET_TESTING_TOPOLOGY_OPTION_ADD_CLOSEST:
5362 #if VERBOSE_TOPOLOGY
5363 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
5364 _("Finding additional %u closest peers each (if possible)\n"),
5365 (unsigned int) option_modifier);
5368 add_closest (pg, (unsigned int) option_modifier, &add_connections, CONNECT);
5371 case GNUNET_TESTING_TOPOLOGY_OPTION_NONE:
5373 case GNUNET_TESTING_TOPOLOGY_OPTION_ALL:
5379 return connect_topology (pg, connect_timeout, connect_attempts,
5380 notify_callback, notify_cls);
5384 * Lookup and return the number of SSH connections to a host.
5386 * @param hostname the hostname to lookup in the list
5387 * @param pg the peergroup that the host belongs to
5389 * @return the number of current ssh connections to the host
5392 count_outstanding_at_host (const char *hostname,
5393 struct GNUNET_TESTING_PeerGroup *pg)
5395 struct OutstandingSSH *pos;
5398 while ((pos != NULL) && (strcmp (pos->hostname, hostname) != 0))
5400 GNUNET_assert (pos != NULL);
5401 return pos->outstanding;
5405 * Increment the number of SSH connections to a host by one.
5407 * @param hostname the hostname to lookup in the list
5408 * @param pg the peergroup that the host belongs to
5412 increment_outstanding_at_host (const char *hostname,
5413 struct GNUNET_TESTING_PeerGroup *pg)
5415 struct OutstandingSSH *pos;
5418 while ((pos != NULL) && (strcmp (pos->hostname, hostname) != 0))
5420 GNUNET_assert (pos != NULL);
5425 * Decrement the number of SSH connections to a host by one.
5427 * @param hostname the hostname to lookup in the list
5428 * @param pg the peergroup that the host belongs to
5432 decrement_outstanding_at_host (const char *hostname,
5433 struct GNUNET_TESTING_PeerGroup *pg)
5435 struct OutstandingSSH *pos;
5438 while ((pos != NULL) && (strcmp (pos->hostname, hostname) != 0))
5440 GNUNET_assert (pos != NULL);
5445 * Callback that is called whenever a hostkey is generated
5446 * for a peer. Call the real callback and decrement the
5447 * starting counter for the peergroup.
5449 * @param cls closure
5450 * @param id identifier for the daemon, NULL on error
5451 * @param d handle for the daemon
5452 * @param emsg error message (NULL on success)
5455 internal_hostkey_callback (void *cls, const struct GNUNET_PeerIdentity *id,
5456 struct GNUNET_TESTING_Daemon *d, const char *emsg)
5458 struct InternalStartContext *internal_context = cls;
5460 internal_context->peer->pg->starting--;
5461 internal_context->peer->pg->started++;
5462 if (internal_context->hostname != NULL)
5463 decrement_outstanding_at_host (internal_context->hostname,
5464 internal_context->peer->pg);
5465 if (internal_context->hostkey_callback != NULL)
5466 internal_context->hostkey_callback (internal_context->hostkey_cls, id, d,
5468 else if (internal_context->peer->pg->started ==
5469 internal_context->peer->pg->total)
5471 internal_context->peer->pg->started = 0; /* Internal startup may use this counter! */
5472 GNUNET_TESTING_daemons_continue_startup (internal_context->peer->pg);
5477 * Callback that is called whenever a peer has finished starting.
5478 * Call the real callback and decrement the starting counter
5479 * for the peergroup.
5481 * @param cls closure
5482 * @param id identifier for the daemon, NULL on error
5484 * @param d handle for the daemon
5485 * @param emsg error message (NULL on success)
5488 internal_startup_callback (void *cls, const struct GNUNET_PeerIdentity *id,
5489 const struct GNUNET_CONFIGURATION_Handle *cfg,
5490 struct GNUNET_TESTING_Daemon *d, const char *emsg)
5492 struct InternalStartContext *internal_context = cls;
5494 internal_context->peer->pg->starting--;
5495 if (internal_context->hostname != NULL)
5496 decrement_outstanding_at_host (internal_context->hostname,
5497 internal_context->peer->pg);
5498 if (internal_context->start_cb != NULL)
5499 internal_context->start_cb (internal_context->start_cb_cls, id, cfg, d,
5505 * Calls GNUNET_TESTING_daemon_continue_startup to set the daemon's state
5506 * from HOSTKEY_CREATED to TOPOLOGY_SETUP. Makes sure not to saturate a host
5507 * with requests delaying them when needed.
5509 * @param cls closure: internal context of the daemon.
5510 * @param tc TaskContext
5513 internal_continue_startup (void *cls,
5514 const struct GNUNET_SCHEDULER_TaskContext *tc)
5516 struct InternalStartContext *internal_context = cls;
5518 internal_context->peer->startup_task = GNUNET_SCHEDULER_NO_TASK;
5520 if ((tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN) != 0)
5525 if ((internal_context->peer->pg->starting <
5526 internal_context->peer->pg->max_concurrent_ssh) ||
5527 ((internal_context->hostname != NULL) &&
5528 (count_outstanding_at_host
5529 (internal_context->hostname,
5530 internal_context->peer->pg) <
5531 internal_context->peer->pg->max_concurrent_ssh)))
5533 if (internal_context->hostname != NULL)
5534 increment_outstanding_at_host (internal_context->hostname,
5535 internal_context->peer->pg);
5536 internal_context->peer->pg->starting++;
5537 GNUNET_TESTING_daemon_continue_startup (internal_context->peer->daemon);
5541 internal_context->peer->startup_task =
5542 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply
5543 (GNUNET_TIME_UNIT_MILLISECONDS, 100),
5544 &internal_continue_startup,
5550 * Callback for informing us about a successful
5551 * or unsuccessful churn start call.
5553 * @param cls a ChurnContext
5554 * @param id the peer identity of the started peer
5555 * @param cfg the handle to the configuration of the peer
5556 * @param d handle to the daemon for the peer
5557 * @param emsg NULL on success, non-NULL on failure
5561 churn_start_callback (void *cls, const struct GNUNET_PeerIdentity *id,
5562 const struct GNUNET_CONFIGURATION_Handle *cfg,
5563 struct GNUNET_TESTING_Daemon *d, const char *emsg)
5565 struct ChurnRestartContext *startup_ctx = cls;
5566 struct ChurnContext *churn_ctx = startup_ctx->churn_ctx;
5568 unsigned int total_left;
5569 char *error_message;
5571 error_message = NULL;
5574 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
5575 "Churn stop callback failed with error `%s'\n", emsg);
5576 churn_ctx->num_failed_start++;
5580 churn_ctx->num_to_start--;
5584 (churn_ctx->num_to_stop - churn_ctx->num_failed_stop) +
5585 (churn_ctx->num_to_start - churn_ctx->num_failed_start);
5587 if (total_left == 0)
5589 if ((churn_ctx->num_failed_stop > 0) || (churn_ctx->num_failed_start > 0))
5590 GNUNET_asprintf (&error_message,
5591 "Churn didn't complete successfully, %u peers failed to start %u peers failed to be stopped!",
5592 churn_ctx->num_failed_start, churn_ctx->num_failed_stop);
5593 churn_ctx->cb (churn_ctx->cb_cls, error_message);
5594 GNUNET_free_non_null (error_message);
5595 GNUNET_free (churn_ctx);
5596 GNUNET_free (startup_ctx);
5601 schedule_churn_restart (void *cls,
5602 const struct GNUNET_SCHEDULER_TaskContext *tc)
5604 struct PeerRestartContext *peer_restart_ctx = cls;
5605 struct ChurnRestartContext *startup_ctx = peer_restart_ctx->churn_restart_ctx;
5607 if (startup_ctx->outstanding > startup_ctx->pg->max_concurrent_ssh)
5608 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply
5609 (GNUNET_TIME_UNIT_MILLISECONDS, 100),
5610 &schedule_churn_restart, peer_restart_ctx);
5613 if (startup_ctx->churn_ctx->service != NULL)
5614 GNUNET_TESTING_daemon_start_stopped_service (peer_restart_ctx->daemon,
5617 startup_ctx->timeout,
5618 &churn_start_callback,
5621 GNUNET_TESTING_daemon_start_stopped (peer_restart_ctx->daemon,
5622 startup_ctx->timeout,
5623 &churn_start_callback, startup_ctx);
5624 GNUNET_free (peer_restart_ctx);
5629 * Callback for informing us about a successful
5630 * or unsuccessful churn start call.
5632 * @param cls a struct ServiceStartContext *startup_ctx
5633 * @param id the peer identity of the started peer
5634 * @param cfg the handle to the configuration of the peer
5635 * @param d handle to the daemon for the peer
5636 * @param emsg NULL on success, non-NULL on failure
5640 service_start_callback (void *cls, const struct GNUNET_PeerIdentity *id,
5641 const struct GNUNET_CONFIGURATION_Handle *cfg,
5642 struct GNUNET_TESTING_Daemon *d, const char *emsg)
5644 struct ServiceStartContext *startup_ctx = (struct ServiceStartContext *) cls;
5648 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
5649 "Service start failed with error `%s'\n", emsg);
5652 startup_ctx->outstanding--;
5653 startup_ctx->remaining--;
5655 if (startup_ctx->remaining == 0)
5657 startup_ctx->cb (startup_ctx->cb_cls, NULL);
5658 GNUNET_free (startup_ctx->service);
5659 GNUNET_free (startup_ctx);
5664 schedule_service_start (void *cls,
5665 const struct GNUNET_SCHEDULER_TaskContext *tc)
5667 struct PeerServiceStartContext *peer_ctx = cls;
5668 struct ServiceStartContext *startup_ctx = peer_ctx->start_ctx;
5670 if (startup_ctx->outstanding > startup_ctx->pg->max_concurrent_ssh)
5671 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply
5672 (GNUNET_TIME_UNIT_MILLISECONDS, 100),
5673 &schedule_service_start, peer_ctx);
5677 GNUNET_TESTING_daemon_start_service (peer_ctx->daemon, startup_ctx->service,
5678 startup_ctx->timeout,
5679 &service_start_callback, startup_ctx);
5680 GNUNET_free (peer_ctx);
5686 internal_start (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
5688 struct InternalStartContext *internal_context = cls;
5690 if ((tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN) != 0)
5695 if ((internal_context->peer->pg->starting <
5696 internal_context->peer->pg->max_concurrent_ssh) ||
5697 ((internal_context->hostname != NULL) &&
5698 (count_outstanding_at_host
5699 (internal_context->hostname,
5700 internal_context->peer->pg) <
5701 internal_context->peer->pg->max_concurrent_ssh)))
5703 if (internal_context->hostname != NULL)
5704 increment_outstanding_at_host (internal_context->hostname,
5705 internal_context->peer->pg);
5706 internal_context->peer->pg->starting++;
5707 internal_context->peer->daemon =
5708 GNUNET_TESTING_daemon_start (internal_context->peer->cfg,
5709 internal_context->timeout, GNUNET_NO,
5710 internal_context->hostname,
5711 internal_context->username,
5712 internal_context->sshport,
5713 internal_context->hostkey,
5714 &internal_hostkey_callback,
5716 &internal_startup_callback,
5721 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply
5722 (GNUNET_TIME_UNIT_MILLISECONDS, 100),
5723 &internal_start, internal_context);
5727 #if USE_START_HELPER
5729 struct PeerStartHelperContext
5731 struct GNUNET_TESTING_PeerGroup *pg;
5733 struct HostData *host;
5735 struct GNUNET_OS_Process *proc;
5739 check_peers_started (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
5741 struct PeerStartHelperContext *helper = cls;
5742 enum GNUNET_OS_ProcessStatusType type;
5745 GNUNET_TESTING_NotifyDaemonRunning cb;
5747 if (GNUNET_NO == GNUNET_OS_process_status (helper->proc, &type, &code)) /* Still running, wait some more! */
5749 GNUNET_SCHEDULER_add_delayed (GNUNET_CONSTANTS_EXEC_WAIT,
5750 &check_peers_started, helper);
5754 helper->pg->starting--;
5755 if (helper->pg->starting == 0) /* All peers have finished starting! */
5757 /* Call the peer started callback for each peer, set proper FSM state (?) */
5758 for (i = 0; i < helper->pg->total; i++)
5760 cb = helper->pg->peers[i].daemon->cb;
5761 helper->pg->peers[i].daemon->cb = NULL;
5762 helper->pg->peers[i].daemon->running = GNUNET_YES;
5763 helper->pg->peers[i].daemon->phase = SP_START_DONE;
5766 if ((type != GNUNET_OS_PROCESS_EXITED) || (code != 0))
5767 cb (helper->pg->peers[i].daemon->cb_cls,
5768 &helper->pg->peers[i].daemon->id,
5769 helper->pg->peers[i].daemon->cfg, helper->pg->peers[i].daemon,
5770 "Failed to execute peerStartHelper.pl, or return code bad!");
5772 cb (helper->pg->peers[i].daemon->cb_cls,
5773 &helper->pg->peers[i].daemon->id,
5774 helper->pg->peers[i].daemon->cfg, helper->pg->peers[i].daemon,
5781 GNUNET_OS_process_close (helper->proc);
5785 start_peer_helper (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
5787 struct PeerStartHelperContext *helper = cls;
5788 char *baseservicehome;
5792 /* ssh user@host peerStartHelper /path/to/basedirectory */
5793 GNUNET_assert (GNUNET_OK ==
5794 GNUNET_CONFIGURATION_get_value_string (helper->pg->cfg,
5795 "PATHS", "SERVICEHOME",
5797 GNUNET_asprintf (&tempdir, "%s/%s/", baseservicehome, helper->host->hostname);
5798 if (NULL != helper->host->username)
5799 GNUNET_asprintf (&arg, "%s@%s", helper->host->username,
5800 helper->host->hostname);
5802 GNUNET_asprintf (&arg, "%s", helper->host->hostname);
5804 /* FIXME: Doesn't support ssh_port option! */
5806 GNUNET_OS_start_process (GNUNET_NO, NULL, NULL, "ssh", "ssh", arg,
5807 "peerStartHelper.pl", tempdir, NULL);
5808 GNUNET_assert (helper->proc != NULL);
5810 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "starting peers with cmd ssh %s %s %s\n",
5811 arg, "peerStartHelper.pl", tempdir);
5813 GNUNET_SCHEDULER_add_now (&check_peers_started, helper);
5814 GNUNET_free (tempdir);
5815 GNUNET_free (baseservicehome);
5821 * Function which continues a peer group starting up
5822 * after successfully generating hostkeys for each peer.
5824 * @param pg the peer group to continue starting
5828 GNUNET_TESTING_daemons_continue_startup (struct GNUNET_TESTING_PeerGroup *pg)
5832 #if USE_START_HELPER
5833 if ((pg->num_hosts > 0) && (pg->hostkey_data != NULL))
5835 struct PeerStartHelperContext *helper;
5837 pg->starting = pg->num_hosts;
5838 for (i = 0; i < pg->num_hosts; i++)
5840 helper = GNUNET_malloc (sizeof (struct PeerStartHelperContext));
5842 helper->host = &pg->hosts[i];
5843 GNUNET_SCHEDULER_add_now (&start_peer_helper, helper);
5849 for (i = 0; i < pg->total; i++)
5851 pg->peers[i].startup_task =
5852 GNUNET_SCHEDULER_add_now (&internal_continue_startup,
5853 &pg->peers[i].internal_context);
5858 for (i = 0; i < pg->total; i++)
5860 pg->peers[i].startup_task =
5861 GNUNET_SCHEDULER_add_now (&internal_continue_startup,
5862 &pg->peers[i].internal_context);
5867 #if USE_START_HELPER
5869 call_hostkey_callbacks (void *cls,
5870 const struct GNUNET_SCHEDULER_TaskContext *tc)
5872 struct GNUNET_TESTING_PeerGroup *pg = cls;
5875 for (i = 0; i < pg->total; i++)
5877 if (pg->peers[i].internal_context.hostkey_callback != NULL)
5878 pg->peers[i].internal_context.hostkey_callback (pg->peers[i].
5879 internal_context.hostkey_cls,
5880 &pg->peers[i].daemon->id,
5881 pg->peers[i].daemon,
5885 if (pg->peers[0].internal_context.hostkey_callback == NULL)
5886 GNUNET_TESTING_daemons_continue_startup (pg);
5891 * Start count gnunet instances with the same set of transports and
5892 * applications. The port numbers (any option called "PORT") will be
5893 * adjusted to ensure that no two peers running on the same system
5894 * have the same port(s) in their respective configurations.
5896 * @param cfg configuration template to use
5897 * @param total number of daemons to start
5898 * @param max_concurrent_connections for testing, how many peers can
5899 * we connect to simultaneously
5900 * @param max_concurrent_ssh when starting with ssh, how many ssh
5901 * connections will we allow at once (based on remote hosts allowed!)
5902 * @param timeout total time allowed for peers to start
5903 * @param hostkey_callback function to call on each peers hostkey generation
5904 * if NULL, peers will be started by this call, if non-null,
5905 * GNUNET_TESTING_daemons_continue_startup must be called after
5906 * successful hostkey generation
5907 * @param hostkey_cls closure for hostkey callback
5908 * @param cb function to call on each daemon that was started
5909 * @param cb_cls closure for cb
5910 * @param connect_callback function to call each time two hosts are connected
5911 * @param connect_callback_cls closure for connect_callback
5912 * @param hostnames linked list of host structs to use to start peers on
5913 * (NULL to run on localhost only)
5915 * @return NULL on error, otherwise handle to control peer group
5917 struct GNUNET_TESTING_PeerGroup *
5918 GNUNET_TESTING_daemons_start (const struct GNUNET_CONFIGURATION_Handle *cfg,
5920 unsigned int max_concurrent_connections,
5921 unsigned int max_concurrent_ssh,
5922 struct GNUNET_TIME_Relative timeout,
5923 GNUNET_TESTING_NotifyHostkeyCreated
5924 hostkey_callback, void *hostkey_cls,
5925 GNUNET_TESTING_NotifyDaemonRunning cb,
5927 GNUNET_TESTING_NotifyConnection connect_callback,
5928 void *connect_callback_cls,
5929 const struct GNUNET_TESTING_Host *hostnames)
5931 struct GNUNET_TESTING_PeerGroup *pg;
5932 const struct GNUNET_TESTING_Host *hostpos;
5933 const char *hostname;
5934 const char *username;
5935 char *baseservicehome;
5936 char *newservicehome;
5938 char *hostkeys_file;
5941 struct GNUNET_DISK_FileHandle *fd;
5942 struct GNUNET_CONFIGURATION_Handle *pcfg;
5944 struct OutstandingSSH *ssh_entry;
5945 unsigned int hostcnt;
5952 uint64_t total_hostkeys;
5953 struct GNUNET_OS_Process *proc;
5964 pg = GNUNET_malloc (sizeof (struct GNUNET_TESTING_PeerGroup));
5966 pg->notify_connection = connect_callback;
5967 pg->notify_connection_cls = connect_callback_cls;
5969 pg->max_timeout = GNUNET_TIME_relative_to_absolute (timeout);
5970 pg->peers = GNUNET_malloc (total * sizeof (struct PeerData));
5971 pg->max_outstanding_connections = max_concurrent_connections;
5972 pg->max_concurrent_ssh = max_concurrent_ssh;
5973 if (NULL != hostnames)
5976 hostpos = hostnames;
5977 while (hostpos != NULL)
5979 hostpos = hostpos->next;
5982 pg->hosts = GNUNET_malloc (off * sizeof (struct HostData));
5985 hostpos = hostnames;
5986 while (hostpos != NULL)
5988 pg->hosts[off].minport = LOW_PORT;
5989 pg->hosts[off].hostname = GNUNET_strdup (hostpos->hostname);
5990 if (hostpos->username != NULL)
5991 pg->hosts[off].username = GNUNET_strdup (hostpos->username);
5992 pg->hosts[off].sshport = hostpos->port;
5993 hostpos = hostpos->next;
6003 pg->num_hosts = off;
6011 /* Create the servicehome directory for each remote peer */
6012 GNUNET_assert (GNUNET_OK ==
6013 GNUNET_CONFIGURATION_get_value_string (cfg, "PATHS",
6016 for (i = 0; i < pg->num_hosts; i++)
6018 ssh_entry = GNUNET_malloc (sizeof (struct OutstandingSSH));
6019 ssh_entry->hostname = pg->hosts[i].hostname; /* Don't free! */
6020 GNUNET_CONTAINER_DLL_insert (pg->ssh_head, pg->ssh_tail, ssh_entry);
6021 GNUNET_asprintf (&tmpdir, "%s/%s", baseservicehome, pg->hosts[i].hostname);
6022 if (NULL != pg->hosts[i].username)
6023 GNUNET_asprintf (&arg, "%s@%s", pg->hosts[i].username,
6024 pg->hosts[i].hostname);
6026 GNUNET_asprintf (&arg, "%s", pg->hosts[i].hostname);
6027 if (pg->hosts[i].sshport != 0)
6029 GNUNET_asprintf (&ssh_port_str, "%d", pg->hosts[i].sshport);
6031 GNUNET_OS_start_process (GNUNET_NO, NULL, NULL, "ssh", "ssh", "-P", ssh_port_str,
6035 arg, "mkdir -p", tmpdir, NULL);
6039 GNUNET_OS_start_process (GNUNET_NO, NULL, NULL, "ssh", "ssh", arg, "mkdir -p",
6041 GNUNET_assert (proc != NULL);
6042 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
6043 "Creating remote dir with command ssh %s %s %s\n", arg,
6044 " mkdir -p ", tmpdir);
6045 GNUNET_free (tmpdir);
6047 GNUNET_OS_process_wait (proc);
6048 GNUNET_OS_process_close (proc);
6050 GNUNET_free (baseservicehome);
6051 baseservicehome = NULL;
6054 GNUNET_CONFIGURATION_get_value_string (cfg, "TESTING", "HOSTKEYSFILE",
6057 if (GNUNET_YES != GNUNET_DISK_file_test (hostkeys_file))
6058 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
6059 _("Could not read hostkeys file!\n"));
6062 /* Check hostkey file size, read entire thing into memory */
6063 fd = GNUNET_DISK_file_open (hostkeys_file, GNUNET_DISK_OPEN_READ,
6064 GNUNET_DISK_PERM_NONE);
6067 GNUNET_log_strerror_file (GNUNET_ERROR_TYPE_ERROR, "open",
6069 GNUNET_free (hostkeys_file);
6070 for (i = 0; i < pg->num_hosts; i++)
6072 GNUNET_free (pg->hosts[i].hostname);
6073 GNUNET_free_non_null (pg->hosts[i].username);
6075 GNUNET_free (pg->peers);
6076 GNUNET_free (pg->hosts);
6081 if (GNUNET_OK != GNUNET_DISK_file_size (hostkeys_file, &fs, GNUNET_YES, GNUNET_YES))
6084 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
6085 "Found file size %llu for hostkeys\n", fs);
6087 if (0 != (fs % HOSTKEYFILESIZE))
6089 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
6090 "File size %llu seems incorrect for hostkeys...\n", fs);
6094 total_hostkeys = fs / HOSTKEYFILESIZE;
6095 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
6096 "Will read %llu hostkeys from file\n", total_hostkeys);
6097 pg->hostkey_data = GNUNET_malloc_large (fs);
6098 GNUNET_assert (fs == GNUNET_DISK_file_read (fd, pg->hostkey_data, fs));
6100 GNUNET_assert (GNUNET_OK == GNUNET_DISK_file_close (fd));
6102 GNUNET_free (hostkeys_file);
6105 for (off = 0; off < total; off++)
6109 hostname = pg->hosts[off % hostcnt].hostname;
6110 username = pg->hosts[off % hostcnt].username;
6111 sshport = pg->hosts[off % hostcnt].sshport;
6113 GNUNET_TESTING_create_cfg (cfg, off, &pg->hosts[off % hostcnt].minport, &upnum,
6121 pcfg = GNUNET_TESTING_create_cfg (cfg, off, &minport, &upnum, hostname, &fdnum);
6126 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
6128 ("Could not create configuration for peer number %u on `%s'!\n"),
6129 off, hostname == NULL ? "localhost" : hostname);
6134 GNUNET_CONFIGURATION_get_value_string (pcfg, "PATHS", "SERVICEHOME",
6137 if (hostname != NULL)
6138 GNUNET_asprintf (&newservicehome, "%s/%s/%d/", baseservicehome,
6141 GNUNET_asprintf (&newservicehome, "%s/%d/", baseservicehome, off);
6142 GNUNET_free (baseservicehome);
6143 baseservicehome = NULL;
6147 tmpdir = getenv ("TMPDIR");
6148 tmpdir = tmpdir ? tmpdir : "/tmp";
6149 if (hostname != NULL)
6150 GNUNET_asprintf (&newservicehome, "%s/%s/%s/%d/", tmpdir, hostname,
6151 "gnunet-testing-test-test", off);
6153 GNUNET_asprintf (&newservicehome, "%s/%s/%d/", tmpdir,
6154 "gnunet-testing-test-test", off);
6156 GNUNET_CONFIGURATION_set_value_string (pcfg, "PATHS", "SERVICEHOME",
6158 GNUNET_free (newservicehome);
6159 pg->peers[off].cfg = pcfg;
6160 pg->peers[off].pg = pg;
6161 pg->peers[off].internal_context.peer = &pg->peers[off];
6162 pg->peers[off].internal_context.timeout = timeout;
6163 pg->peers[off].internal_context.hostname = hostname;
6164 pg->peers[off].internal_context.username = username;
6165 pg->peers[off].internal_context.sshport = sshport;
6166 if (pg->hostkey_data != NULL)
6167 pg->peers[off].internal_context.hostkey =
6168 &pg->hostkey_data[off * HOSTKEYFILESIZE];
6169 pg->peers[off].internal_context.hostkey_callback = hostkey_callback;
6170 pg->peers[off].internal_context.hostkey_cls = hostkey_cls;
6171 pg->peers[off].internal_context.start_cb = cb;
6172 pg->peers[off].internal_context.start_cb_cls = cb_cls;
6173 #if !USE_START_HELPER
6174 GNUNET_SCHEDULER_add_now (&internal_start,
6175 &pg->peers[off].internal_context);
6177 if ((pg->hostkey_data != NULL) && (hostcnt > 0))
6179 pg->peers[off].daemon =
6180 GNUNET_TESTING_daemon_start (pcfg, timeout, GNUNET_YES, hostname,
6182 pg->peers[off].internal_context.hostkey,
6183 &internal_hostkey_callback,
6184 &pg->peers[off].internal_context,
6185 &internal_startup_callback,
6186 &pg->peers[off].internal_context);
6188 * At this point, given that we had a hostkeyfile,
6189 * we can call the hostkey callback!
6190 * But first, we should copy (rsync) all of the configs
6191 * and hostkeys to the remote peers. Then let topology
6192 * creation happen, then call the peer start helper processes,
6193 * then set pg->whatever_phase for each peer and let them
6194 * enter the fsm to get the HELLO's for peers and start connecting.
6199 GNUNET_SCHEDULER_add_now (&internal_start,
6200 &pg->peers[off].internal_context);
6206 #if USE_START_HELPER /* Now the peergroup has been set up, hostkeys and configs written to files. */
6207 if ((pg->hostkey_data != NULL) && (hostcnt > 0))
6209 for (off = 0; off < hostcnt; off++)
6214 hostname = pg->hosts[off % hostcnt].hostname;
6215 username = pg->hosts[off % hostcnt].username;
6216 sshport = pg->hosts[off % hostcnt].sshport;
6226 GNUNET_CONFIGURATION_get_value_string (cfg, "PATHS", "SERVICEHOME",
6230 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "baseservice home is %s\n",
6233 if (hostname != NULL)
6234 GNUNET_asprintf (&newservicehome, "%s/%s/", baseservicehome,
6237 GNUNET_asprintf (&newservicehome, "%s/", baseservicehome);
6238 GNUNET_free (baseservicehome);
6239 baseservicehome = NULL;
6243 tmpdir = getenv ("TMPDIR");
6244 tmpdir = tmpdir ? tmpdir : "/tmp";
6245 if (hostname != NULL)
6246 GNUNET_asprintf (&newservicehome, "%s/%s/%s/", tmpdir, hostname,
6247 "gnunet-testing-test-test");
6249 GNUNET_asprintf (&newservicehome, "%s/%s/", tmpdir,
6250 "gnunet-testing-test-test", off);
6253 if (NULL != username)
6254 GNUNET_asprintf (&arg, "%s@%s:%s", username, pg->hosts[off].hostname,
6257 GNUNET_asprintf (&arg, "%s:%s", pg->hosts[off].hostname,
6260 /* FIXME: Doesn't support ssh_port option! */
6262 GNUNET_OS_start_process (GNUNET_NO, NULL, NULL, "rsync", "rsync", "-r",
6263 newservicehome, arg, NULL);
6265 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
6266 "copying directory with command rsync -r %s %s\n",
6267 newservicehome, arg);
6269 GNUNET_free (newservicehome);
6273 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
6275 ("Could not start `%s' process to copy configuration directory.\n"),
6279 GNUNET_OS_process_wait (proc);
6280 GNUNET_OS_process_close (proc);
6282 /* Now all the configuration files and hostkeys are copied to the remote host. Call the hostkey callback for each peer! */
6283 GNUNET_SCHEDULER_add_now (&call_hostkey_callbacks, pg);
6290 * Get a daemon by number, so callers don't have to do nasty
6291 * offsetting operation.
6293 struct GNUNET_TESTING_Daemon *
6294 GNUNET_TESTING_daemon_get (struct GNUNET_TESTING_PeerGroup *pg,
6295 unsigned int position)
6297 if (position < pg->total)
6298 return pg->peers[position].daemon;
6303 * Get a daemon by peer identity, so callers can
6304 * retrieve the daemon without knowing it's offset.
6306 * @param pg the peer group to retrieve the daemon from
6307 * @param peer_id the peer identity of the daemon to retrieve
6309 * @return the daemon on success, or NULL if no such peer identity is found
6311 struct GNUNET_TESTING_Daemon *
6312 GNUNET_TESTING_daemon_get_by_id (struct GNUNET_TESTING_PeerGroup *pg,
6313 const struct GNUNET_PeerIdentity *peer_id)
6317 for (i = 0; i < pg->total; i++)
6320 memcmp (&pg->peers[i].daemon->id, peer_id,
6321 sizeof (struct GNUNET_PeerIdentity)))
6322 return pg->peers[i].daemon;
6328 * Prototype of a function that will be called when a
6329 * particular operation was completed the testing library.
6331 * @param cls closure (a struct RestartContext)
6332 * @param id id of the peer that was restarted
6333 * @param cfg handle to the configuration of the peer
6334 * @param d handle to the daemon that was restarted
6335 * @param emsg NULL on success
6338 restart_callback (void *cls, const struct GNUNET_PeerIdentity *id,
6339 const struct GNUNET_CONFIGURATION_Handle *cfg,
6340 struct GNUNET_TESTING_Daemon *d, const char *emsg)
6342 struct RestartContext *restart_context = cls;
6346 restart_context->peers_restarted++;
6350 restart_context->peers_restart_failed++;
6353 if (restart_context->peers_restarted == restart_context->peer_group->total)
6355 restart_context->callback (restart_context->callback_cls, NULL);
6356 GNUNET_free (restart_context);
6358 else if (restart_context->peers_restart_failed +
6359 restart_context->peers_restarted ==
6360 restart_context->peer_group->total)
6362 restart_context->callback (restart_context->callback_cls,
6363 "Failed to restart peers!");
6364 GNUNET_free (restart_context);
6370 * Callback for informing us about a successful
6371 * or unsuccessful churn stop call.
6373 * @param cls a ChurnContext
6374 * @param emsg NULL on success, non-NULL on failure
6378 churn_stop_callback (void *cls, const char *emsg)
6380 struct ShutdownContext *shutdown_ctx = cls;
6381 struct ChurnContext *churn_ctx = shutdown_ctx->cb_cls;
6382 unsigned int total_left;
6383 char *error_message;
6385 error_message = NULL;
6386 shutdown_ctx->outstanding--;
6390 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
6391 "Churn stop callback failed with error `%s'\n", emsg);
6392 churn_ctx->num_failed_stop++;
6396 churn_ctx->num_to_stop--;
6400 (churn_ctx->num_to_stop - churn_ctx->num_failed_stop) +
6401 (churn_ctx->num_to_start - churn_ctx->num_failed_start);
6403 if (total_left == 0)
6405 if ((churn_ctx->num_failed_stop > 0) || (churn_ctx->num_failed_start > 0))
6407 GNUNET_asprintf (&error_message,
6408 "Churn didn't complete successfully, %u peers failed to start %u peers failed to be stopped!",
6409 churn_ctx->num_failed_start, churn_ctx->num_failed_stop);
6411 churn_ctx->cb (churn_ctx->cb_cls, error_message);
6412 GNUNET_free_non_null (error_message);
6413 GNUNET_free (churn_ctx);
6414 GNUNET_free (shutdown_ctx);
6419 * Count the number of running peers.
6421 * @param pg handle for the peer group
6423 * @return the number of currently running peers in the peer group
6426 GNUNET_TESTING_daemons_running (struct GNUNET_TESTING_PeerGroup *pg)
6429 unsigned int running = 0;
6431 for (i = 0; i < pg->total; i++)
6433 if (pg->peers[i].daemon->running == GNUNET_YES)
6435 GNUNET_assert (running != -1);
6443 * Task to rate limit the number of outstanding peer shutdown
6444 * requests. This is necessary for making sure we don't do
6445 * too many ssh connections at once, but is generally nicer
6446 * to any system as well (graduated task starts, as opposed
6447 * to calling gnunet-arm N times all at once).
6450 schedule_churn_shutdown_task (void *cls,
6451 const struct GNUNET_SCHEDULER_TaskContext *tc)
6453 struct PeerShutdownContext *peer_shutdown_ctx = cls;
6454 struct ShutdownContext *shutdown_ctx;
6455 struct ChurnContext *churn_ctx;
6457 GNUNET_assert (peer_shutdown_ctx != NULL);
6458 shutdown_ctx = peer_shutdown_ctx->shutdown_ctx;
6459 GNUNET_assert (shutdown_ctx != NULL);
6460 churn_ctx = (struct ChurnContext *) shutdown_ctx->cb_cls;
6461 if (shutdown_ctx->outstanding > churn_ctx->pg->max_concurrent_ssh)
6462 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply
6463 (GNUNET_TIME_UNIT_MILLISECONDS, 100),
6464 &schedule_churn_shutdown_task,
6468 shutdown_ctx->outstanding++;
6469 if (churn_ctx->service != NULL)
6470 GNUNET_TESTING_daemon_stop_service (peer_shutdown_ctx->daemon,
6472 shutdown_ctx->timeout,
6473 shutdown_ctx->cb, shutdown_ctx);
6475 GNUNET_TESTING_daemon_stop (peer_shutdown_ctx->daemon,
6476 shutdown_ctx->timeout, shutdown_ctx->cb,
6477 shutdown_ctx, GNUNET_NO, GNUNET_YES);
6478 GNUNET_free (peer_shutdown_ctx);
6484 * Simulate churn by stopping some peers (and possibly
6485 * re-starting others if churn is called multiple times). This
6486 * function can only be used to create leave-join churn (peers "never"
6487 * leave for good). First "voff" random peers that are currently
6488 * online will be taken offline; then "von" random peers that are then
6489 * offline will be put back online. No notifications will be
6490 * generated for any of these operations except for the callback upon
6493 * @param pg handle for the peer group
6494 * @param service the service to churn off/on, NULL to churn peer
6495 * @param voff number of peers that should go offline
6496 * @param von number of peers that should come back online;
6497 * must be zero on first call (since "testbed_start"
6498 * always starts all of the peers)
6499 * @param timeout how long to wait for operations to finish before
6501 * @param cb function to call at the end
6502 * @param cb_cls closure for cb
6505 GNUNET_TESTING_daemons_churn (struct GNUNET_TESTING_PeerGroup *pg,
6506 char *service, unsigned int voff,
6508 struct GNUNET_TIME_Relative timeout,
6509 GNUNET_TESTING_NotifyCompletion cb, void *cb_cls)
6511 struct ChurnContext *churn_ctx;
6512 struct ShutdownContext *shutdown_ctx;
6513 struct PeerShutdownContext *peer_shutdown_ctx;
6514 struct PeerRestartContext *peer_restart_ctx;
6515 struct ChurnRestartContext *churn_startup_ctx;
6517 unsigned int running;
6518 unsigned int stopped;
6519 unsigned int total_running;
6520 unsigned int total_stopped;
6522 unsigned int *running_arr;
6523 unsigned int *stopped_arr;
6524 unsigned int *running_permute;
6525 unsigned int *stopped_permute;
6528 shutdown_ctx = NULL;
6529 peer_shutdown_ctx = NULL;
6530 peer_restart_ctx = NULL;
6531 churn_startup_ctx = NULL;
6536 if ((von == 0) && (voff == 0)) /* No peers at all? */
6542 for (i = 0; i < pg->total; i++)
6544 if (service == NULL)
6546 if (pg->peers[i].daemon->running == GNUNET_YES)
6548 GNUNET_assert (running != -1);
6553 GNUNET_assert (stopped != -1);
6559 /* FIXME: make churned services a list! */
6560 pos = pg->peers[i].daemon->churned_services;
6561 /* FIXME: while (pos != NULL) */
6565 if (0 == strcasecmp (pos, service))
6571 GNUNET_assert (stopped != -1);
6573 /* FIXME: pos = pos->next; */
6577 GNUNET_assert (running != -1);
6585 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
6586 "Trying to stop more peers (%d) than are currently running (%d)!\n",
6588 cb (cb_cls, "Trying to stop more peers than are currently running!");
6594 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
6595 "Trying to start more peers (%d) than are currently stopped (%d)!\n",
6597 cb (cb_cls, "Trying to start more peers than are currently stopped!");
6601 churn_ctx = GNUNET_malloc (sizeof (struct ChurnContext));
6603 if (service != NULL)
6604 churn_ctx->service = GNUNET_strdup (service);
6607 running_arr = GNUNET_malloc (running * sizeof (unsigned int));
6611 stopped_arr = GNUNET_malloc (stopped * sizeof (unsigned int));
6613 running_permute = NULL;
6614 stopped_permute = NULL;
6618 GNUNET_CRYPTO_random_permute (GNUNET_CRYPTO_QUALITY_WEAK, running);
6621 GNUNET_CRYPTO_random_permute (GNUNET_CRYPTO_QUALITY_WEAK, stopped);
6623 total_running = running;
6624 total_stopped = stopped;
6628 churn_ctx->num_to_start = von;
6629 churn_ctx->num_to_stop = voff;
6631 churn_ctx->cb_cls = cb_cls;
6634 for (i = 0; i < pg->total; i++)
6636 if (service == NULL)
6638 if (pg->peers[i].daemon->running == GNUNET_YES)
6640 GNUNET_assert ((running_arr != NULL) && (total_running > running));
6641 running_arr[running] = i;
6646 GNUNET_assert ((stopped_arr != NULL) && (total_stopped > stopped));
6647 stopped_arr[stopped] = i;
6653 /* FIXME: make churned services a list! */
6654 pos = pg->peers[i].daemon->churned_services;
6655 /* FIXME: while (pos != NULL) */
6658 GNUNET_assert ((stopped_arr != NULL) && (total_stopped > stopped));
6659 stopped_arr[stopped] = i;
6661 /* FIXME: pos = pos->next; */
6665 GNUNET_assert ((running_arr != NULL) && (total_running > running));
6666 running_arr[running] = i;
6672 GNUNET_assert (running >= voff);
6675 shutdown_ctx = GNUNET_malloc (sizeof (struct ShutdownContext));
6676 shutdown_ctx->cb = &churn_stop_callback;
6677 shutdown_ctx->cb_cls = churn_ctx;
6678 shutdown_ctx->total_peers = voff;
6679 shutdown_ctx->timeout = timeout;
6682 for (i = 0; i < voff; i++)
6685 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Stopping peer %d!\n",
6686 running_arr[running_permute[i]]);
6688 GNUNET_assert (running_arr != NULL);
6689 peer_shutdown_ctx = GNUNET_malloc (sizeof (struct PeerShutdownContext));
6690 peer_shutdown_ctx->daemon =
6691 pg->peers[running_arr[running_permute[i]]].daemon;
6692 peer_shutdown_ctx->shutdown_ctx = shutdown_ctx;
6693 GNUNET_SCHEDULER_add_now (&schedule_churn_shutdown_task, peer_shutdown_ctx);
6696 GNUNET_assert (stopped >= von);
6699 churn_startup_ctx = GNUNET_malloc (sizeof (struct ChurnRestartContext));
6700 churn_startup_ctx->churn_ctx = churn_ctx;
6701 churn_startup_ctx->timeout = timeout;
6702 churn_startup_ctx->pg = pg;
6704 for (i = 0; i < von; i++)
6707 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Starting up peer %d!\n",
6708 stopped_arr[stopped_permute[i]]);
6710 GNUNET_assert (stopped_arr != NULL);
6711 peer_restart_ctx = GNUNET_malloc (sizeof (struct PeerRestartContext));
6712 peer_restart_ctx->churn_restart_ctx = churn_startup_ctx;
6713 peer_restart_ctx->daemon =
6714 pg->peers[stopped_arr[stopped_permute[i]]].daemon;
6715 GNUNET_SCHEDULER_add_now (&schedule_churn_restart, peer_restart_ctx);
6718 GNUNET_free_non_null (running_arr);
6719 GNUNET_free_non_null (stopped_arr);
6720 GNUNET_free_non_null (running_permute);
6721 GNUNET_free_non_null (stopped_permute);
6725 * Start a given service for each of the peers in the peer group.
6727 * @param pg handle for the peer group
6728 * @param service the service to start
6729 * @param timeout how long to wait for operations to finish before
6731 * @param cb function to call once finished
6732 * @param cb_cls closure for cb
6736 GNUNET_TESTING_daemons_start_service (struct GNUNET_TESTING_PeerGroup *pg,
6738 struct GNUNET_TIME_Relative timeout,
6739 GNUNET_TESTING_NotifyCompletion cb,
6742 struct ServiceStartContext *start_ctx;
6743 struct PeerServiceStartContext *peer_start_ctx;
6746 GNUNET_assert (service != NULL);
6748 start_ctx = GNUNET_malloc (sizeof (struct ServiceStartContext));
6750 start_ctx->remaining = pg->total;
6752 start_ctx->cb_cls = cb_cls;
6753 start_ctx->service = GNUNET_strdup (service);
6754 start_ctx->timeout = timeout;
6756 for (i = 0; i < pg->total; i++)
6759 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Starting up service %s on peer %d!\n",
6760 service, stopped_arr[stopped_permute[i]]);
6762 peer_start_ctx = GNUNET_malloc (sizeof (struct PeerServiceStartContext));
6763 peer_start_ctx->start_ctx = start_ctx;
6764 peer_start_ctx->daemon = pg->peers[i].daemon;
6765 GNUNET_SCHEDULER_add_now (&schedule_service_start, peer_start_ctx);
6770 * Restart all peers in the given group.
6772 * @param pg the handle to the peer group
6773 * @param callback function to call on completion (or failure)
6774 * @param callback_cls closure for the callback function
6777 GNUNET_TESTING_daemons_restart (struct GNUNET_TESTING_PeerGroup *pg,
6778 GNUNET_TESTING_NotifyCompletion callback,
6781 struct RestartContext *restart_context;
6786 restart_context = GNUNET_malloc (sizeof (struct RestartContext));
6787 restart_context->peer_group = pg;
6788 restart_context->peers_restarted = 0;
6789 restart_context->callback = callback;
6790 restart_context->callback_cls = callback_cls;
6792 for (off = 0; off < pg->total; off++)
6794 GNUNET_TESTING_daemon_restart (pg->peers[off].daemon, &restart_callback,
6802 * Start or stop an individual peer from the given group.
6804 * @param pg handle to the peer group
6805 * @param offset which peer to start or stop
6806 * @param desired_status GNUNET_YES to have it running, GNUNET_NO to stop it
6807 * @param timeout how long to wait for shutdown
6808 * @param cb function to call at the end
6809 * @param cb_cls closure for cb
6812 GNUNET_TESTING_daemons_vary (struct GNUNET_TESTING_PeerGroup *pg,
6813 unsigned int offset, int desired_status,
6814 struct GNUNET_TIME_Relative timeout,
6815 GNUNET_TESTING_NotifyCompletion cb, void *cb_cls)
6817 struct ShutdownContext *shutdown_ctx;
6818 struct ChurnRestartContext *startup_ctx;
6819 struct ChurnContext *churn_ctx;
6821 if (GNUNET_NO == desired_status)
6823 if (NULL != pg->peers[offset].daemon)
6825 shutdown_ctx = GNUNET_malloc (sizeof (struct ShutdownContext));
6826 churn_ctx = GNUNET_malloc (sizeof (struct ChurnContext));
6827 churn_ctx->num_to_start = 0;
6828 churn_ctx->num_to_stop = 1;
6830 churn_ctx->cb_cls = cb_cls;
6831 shutdown_ctx->cb_cls = churn_ctx;
6832 GNUNET_TESTING_daemon_stop (pg->peers[offset].daemon, timeout,
6833 &churn_stop_callback, shutdown_ctx, GNUNET_NO,
6837 else if (GNUNET_YES == desired_status)
6839 if (NULL == pg->peers[offset].daemon)
6841 startup_ctx = GNUNET_malloc (sizeof (struct ChurnRestartContext));
6842 churn_ctx = GNUNET_malloc (sizeof (struct ChurnContext));
6843 churn_ctx->num_to_start = 1;
6844 churn_ctx->num_to_stop = 0;
6846 churn_ctx->cb_cls = cb_cls;
6847 startup_ctx->churn_ctx = churn_ctx;
6848 GNUNET_TESTING_daemon_start_stopped (pg->peers[offset].daemon, timeout,
6849 &churn_start_callback, startup_ctx);
6858 * Callback for shutting down peers in a peer group.
6860 * @param cls closure (struct ShutdownContext)
6861 * @param emsg NULL on success
6864 internal_shutdown_callback (void *cls, const char *emsg)
6866 struct PeerShutdownContext *peer_shutdown_ctx = cls;
6867 struct ShutdownContext *shutdown_ctx = peer_shutdown_ctx->shutdown_ctx;
6870 struct OutstandingSSH *ssh_pos;
6872 shutdown_ctx->outstanding--;
6873 if (peer_shutdown_ctx->daemon->hostname != NULL)
6874 decrement_outstanding_at_host (peer_shutdown_ctx->daemon->hostname,
6879 shutdown_ctx->peers_down++;
6884 GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, "internal_shutdown_callback",
6885 "Failed to stop a peer: %s\n", emsg);
6887 shutdown_ctx->peers_failed++;
6890 if ((shutdown_ctx->cb != NULL) &&
6891 (shutdown_ctx->peers_down + shutdown_ctx->peers_failed ==
6892 shutdown_ctx->total_peers))
6894 if (shutdown_ctx->peers_failed > 0)
6895 shutdown_ctx->cb (shutdown_ctx->cb_cls,
6896 "Not all peers successfully shut down!");
6898 shutdown_ctx->cb (shutdown_ctx->cb_cls, NULL);
6900 for (i = 0; i < shutdown_ctx->pg->total; i++)
6902 if (shutdown_ctx->pg->peers[i].startup_task != GNUNET_SCHEDULER_NO_TASK)
6903 GNUNET_SCHEDULER_cancel (shutdown_ctx->pg->peers[i].startup_task);
6905 GNUNET_free (shutdown_ctx->pg->peers);
6906 GNUNET_free_non_null (shutdown_ctx->pg->hostkey_data);
6907 for (off = 0; off < shutdown_ctx->pg->num_hosts; off++)
6909 GNUNET_free (shutdown_ctx->pg->hosts[off].hostname);
6910 GNUNET_free_non_null (shutdown_ctx->pg->hosts[off].username);
6912 GNUNET_free_non_null (shutdown_ctx->pg->hosts);
6913 while (NULL != (ssh_pos = shutdown_ctx->pg->ssh_head))
6915 GNUNET_CONTAINER_DLL_remove (shutdown_ctx->pg->ssh_head,
6916 shutdown_ctx->pg->ssh_tail, ssh_pos);
6917 GNUNET_free (ssh_pos);
6919 GNUNET_free (shutdown_ctx->pg);
6920 GNUNET_free (shutdown_ctx);
6922 GNUNET_free (peer_shutdown_ctx);
6927 * Task to rate limit the number of outstanding peer shutdown
6928 * requests. This is necessary for making sure we don't do
6929 * too many ssh connections at once, but is generally nicer
6930 * to any system as well (graduated task starts, as opposed
6931 * to calling gnunet-arm N times all at once).
6934 schedule_shutdown_task (void *cls,
6935 const struct GNUNET_SCHEDULER_TaskContext *tc)
6937 struct PeerShutdownContext *peer_shutdown_ctx = cls;
6938 struct ShutdownContext *shutdown_ctx;
6940 GNUNET_assert (peer_shutdown_ctx != NULL);
6941 shutdown_ctx = peer_shutdown_ctx->shutdown_ctx;
6942 GNUNET_assert (shutdown_ctx != NULL);
6944 if ((shutdown_ctx->outstanding < shutdown_ctx->pg->max_concurrent_ssh) ||
6945 ((peer_shutdown_ctx->daemon->hostname != NULL) &&
6946 (count_outstanding_at_host
6947 (peer_shutdown_ctx->daemon->hostname,
6948 shutdown_ctx->pg) < shutdown_ctx->pg->max_concurrent_ssh)))
6950 if (peer_shutdown_ctx->daemon->hostname != NULL)
6951 increment_outstanding_at_host (peer_shutdown_ctx->daemon->hostname,
6953 shutdown_ctx->outstanding++;
6954 GNUNET_TESTING_daemon_stop (peer_shutdown_ctx->daemon,
6955 shutdown_ctx->timeout,
6956 &internal_shutdown_callback, peer_shutdown_ctx,
6957 shutdown_ctx->delete_files, GNUNET_NO);
6960 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply
6961 (GNUNET_TIME_UNIT_MILLISECONDS, 100),
6962 &schedule_shutdown_task, peer_shutdown_ctx);
6967 * Read a testing hosts file based on a configuration.
6968 * Returns a DLL of hosts (caller must free!) on success
6969 * or NULL on failure.
6971 * @param cfg a configuration with a testing section
6973 * @return DLL of hosts on success, NULL on failure
6975 struct GNUNET_TESTING_Host *
6976 GNUNET_TESTING_hosts_load (const struct GNUNET_CONFIGURATION_Handle *cfg)
6978 struct GNUNET_TESTING_Host *hosts;
6979 struct GNUNET_TESTING_Host *temphost;
6987 /* Check for a hostfile containing user@host:port triples */
6989 GNUNET_CONFIGURATION_get_value_string (cfg, "testing", "hostfile",
6996 if (hostfile != NULL)
6998 if (GNUNET_OK != GNUNET_DISK_file_test (hostfile))
6999 GNUNET_DISK_fn_write (hostfile, NULL, 0,
7000 GNUNET_DISK_PERM_USER_READ |
7001 GNUNET_DISK_PERM_USER_WRITE);
7002 if ((0 != STAT (hostfile, &frstat)) || (frstat.st_size == 0))
7004 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
7005 "Could not open file specified for host list, ending test!");
7006 GNUNET_free (hostfile);
7010 data = GNUNET_malloc_large (frstat.st_size);
7011 GNUNET_assert (data != NULL);
7012 if (frstat.st_size != GNUNET_DISK_fn_read (hostfile, data, frstat.st_size))
7014 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
7015 "Could not read file %s specified for host list, ending test!",
7017 GNUNET_free (hostfile);
7022 GNUNET_free_non_null (hostfile);
7026 while (count < frstat.st_size - 1)
7029 if (((data[count] == '\n')) && (buf != &data[count]))
7032 temphost = GNUNET_malloc (sizeof (struct GNUNET_TESTING_Host));
7034 SSCANF (buf, "%a[a-zA-Z0-9_]@%a[a-zA-Z0-9.]:%hd",
7035 &temphost->username, &temphost->hostname, &temphost->port);
7038 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
7039 "Successfully read host %s, port %d and user %s from file\n",
7040 temphost->hostname, temphost->port, temphost->username);
7044 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
7045 "Error reading line `%s' in hostfile\n", buf);
7046 GNUNET_free (temphost);
7047 buf = &data[count + 1];
7050 temphost->next = hosts;
7052 buf = &data[count + 1];
7054 else if ((data[count] == '\n') || (data[count] == '\0'))
7055 buf = &data[count + 1];
7058 GNUNET_free_non_null (data);
7064 * Shutdown all peers started in the given group.
7066 * @param pg handle to the peer group
7067 * @param timeout how long to wait for shutdown
7068 * @param cb callback to notify upon success or failure
7069 * @param cb_cls closure for cb
7072 GNUNET_TESTING_daemons_stop (struct GNUNET_TESTING_PeerGroup *pg,
7073 struct GNUNET_TIME_Relative timeout,
7074 GNUNET_TESTING_NotifyCompletion cb, void *cb_cls)
7077 struct ShutdownContext *shutdown_ctx;
7078 struct PeerShutdownContext *peer_shutdown_ctx;
7081 struct PeerConnection *conn_iter;
7082 struct PeerConnection *temp_conn;
7084 struct ConnectContext *cc;
7086 GNUNET_assert (pg->total > 0);
7087 while (NULL != (cc = pg->cc_head))
7089 GNUNET_CONTAINER_DLL_remove (pg->cc_head, pg->cc_tail, cc);
7090 if (GNUNET_SCHEDULER_NO_TASK != cc->task)
7091 GNUNET_SCHEDULER_cancel (cc->task);
7093 GNUNET_TESTING_daemons_connect_cancel (cc->cc);
7097 shutdown_ctx = GNUNET_malloc (sizeof (struct ShutdownContext));
7098 shutdown_ctx->delete_files =
7099 GNUNET_CONFIGURATION_get_value_yesno (pg->cfg, "TESTING", "DELETE_FILES");
7100 shutdown_ctx->cb = cb;
7101 shutdown_ctx->cb_cls = cb_cls;
7102 shutdown_ctx->total_peers = pg->total;
7103 shutdown_ctx->timeout = timeout;
7104 shutdown_ctx->pg = pg;
7106 for (off = 0; off < pg->total; off++)
7108 GNUNET_assert (NULL != pg->peers[off].daemon);
7109 peer_shutdown_ctx = GNUNET_malloc (sizeof (struct PeerShutdownContext));
7110 peer_shutdown_ctx->daemon = pg->peers[off].daemon;
7111 peer_shutdown_ctx->shutdown_ctx = shutdown_ctx;
7112 GNUNET_SCHEDULER_add_now (&schedule_shutdown_task, peer_shutdown_ctx);
7114 if (NULL != pg->peers[off].cfg)
7116 GNUNET_CONFIGURATION_destroy (pg->peers[off].cfg);
7117 pg->peers[off].cfg = NULL;
7120 // FIXME Do DLL remove for all pg->peers[off].LIST
7121 conn_iter = pg->peers[off].allowed_peers_head;
7122 while (conn_iter != NULL)
7124 temp_conn = conn_iter->next;
7125 GNUNET_free (conn_iter);
7126 conn_iter = temp_conn;
7128 pg->peers[off].allowed_peers_head = NULL;
7130 conn_iter = pg->peers[off].connect_peers_head;
7131 while (conn_iter != NULL)
7133 temp_conn = conn_iter->next;
7134 GNUNET_free (conn_iter);
7135 conn_iter = temp_conn;
7137 pg->peers[off].connect_peers_head = NULL;
7139 conn_iter = pg->peers[off].blacklisted_peers_head;
7140 while (conn_iter != NULL)
7142 temp_conn = conn_iter->next;
7143 GNUNET_free (conn_iter);
7144 conn_iter = temp_conn;
7146 pg->peers[off].blacklisted_peers_head = NULL;
7148 conn_iter = pg->peers[off].connect_peers_working_set_head;
7149 while (conn_iter != NULL)
7151 temp_conn = conn_iter->next;
7152 GNUNET_free (conn_iter);
7153 conn_iter = temp_conn;
7155 pg->peers[off].connect_peers_working_set_head = NULL;
7157 if (pg->peers[off].allowed_peers != NULL)
7158 GNUNET_CONTAINER_multihashmap_destroy (pg->peers[off].allowed_peers);
7159 if (pg->peers[off].connect_peers != NULL)
7160 GNUNET_CONTAINER_multihashmap_destroy (pg->peers[off].connect_peers);
7161 if (pg->peers[off].blacklisted_peers != NULL)
7162 GNUNET_CONTAINER_multihashmap_destroy (pg->peers[off].blacklisted_peers);
7167 /* end of testing_group.c */