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_EXTRA_LOGGING
35 #define VERBOSE_TOPOLOGY GNUNET_EXTRA_LOGGING
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, ".");
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 static struct GNUNET_CONFIGURATION_Handle *
1439 make_config (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);
1543 GNUNET_CONFIGURATION_set_value_string (uc.ret, "transport-tcp",
1544 "USE_LOCALADDR", "YES");
1545 GNUNET_CONFIGURATION_set_value_string (uc.ret, "transport-udp",
1546 "USE_LOCALADDR", "YES");
1547 GNUNET_CONFIGURATION_set_value_string (uc.ret, "nat", "BINDTO",
1549 GNUNET_CONFIGURATION_set_value_string (uc.ret, "nat", "INTERNAL_ADDRESS",
1551 GNUNET_CONFIGURATION_set_value_string (uc.ret, "nat", "EXTERNAL_ADDRESS",
1553 GNUNET_CONFIGURATION_set_value_string (uc.ret, "disablev6", "BINDTO",
1557 *port = (uint16_t) uc.nport;
1565 * Remove entries from the peer connection list
1567 * @param pg the peer group we are working with
1568 * @param first index of the first peer
1569 * @param second index of the second peer
1570 * @param list the peer list to use
1571 * @param check UNUSED
1573 * @return the number of connections added (can be 0, 1 or 2)
1577 remove_connections (struct GNUNET_TESTING_PeerGroup *pg, unsigned int first,
1578 unsigned int second, enum PeerLists list,
1584 struct PeerConnection **first_list;
1585 struct PeerConnection **second_list;
1586 struct PeerConnection *first_iter;
1587 struct PeerConnection *second_iter;
1588 struct PeerConnection **first_tail;
1589 struct PeerConnection **second_tail;
1592 GNUNET_HashCode hash_first;
1593 GNUNET_HashCode hash_second;
1595 hash_from_uid (first, &hash_first);
1596 hash_from_uid (second, &hash_second);
1604 first_list = &pg->peers[first].allowed_peers_head;
1605 second_list = &pg->peers[second].allowed_peers_head;
1606 first_tail = &pg->peers[first].allowed_peers_tail;
1607 second_tail = &pg->peers[second].allowed_peers_tail;
1610 first_list = &pg->peers[first].connect_peers_head;
1611 second_list = &pg->peers[second].connect_peers_head;
1612 first_tail = &pg->peers[first].connect_peers_tail;
1613 second_tail = &pg->peers[second].connect_peers_tail;
1616 first_list = &pg->peers[first].blacklisted_peers_head;
1617 second_list = &pg->peers[second].blacklisted_peers_head;
1618 first_tail = &pg->peers[first].blacklisted_peers_tail;
1619 second_tail = &pg->peers[second].blacklisted_peers_tail;
1622 first_list = &pg->peers[first].connect_peers_working_set_head;
1623 second_list = &pg->peers[second].connect_peers_working_set_head;
1624 first_tail = &pg->peers[first].connect_peers_working_set_tail;
1625 second_tail = &pg->peers[second].connect_peers_working_set_tail;
1632 first_iter = *first_list;
1633 while (first_iter != NULL)
1635 if (first_iter->index == second)
1637 GNUNET_CONTAINER_DLL_remove (*first_list, *first_tail, first_iter);
1638 GNUNET_free (first_iter);
1642 first_iter = first_iter->next;
1645 second_iter = *second_list;
1646 while (second_iter != NULL)
1648 if (second_iter->index == first)
1650 GNUNET_CONTAINER_DLL_remove (*second_list, *second_tail, second_iter);
1651 GNUNET_free (second_iter);
1655 second_iter = second_iter->next;
1659 GNUNET_CONTAINER_multihashmap_contains (pg->
1660 peers[first].blacklisted_peers,
1663 GNUNET_CONTAINER_multihashmap_remove_all (pg->
1664 peers[first].blacklisted_peers,
1669 GNUNET_CONTAINER_multihashmap_contains (pg->
1670 peers[second].blacklisted_peers,
1673 GNUNET_CONTAINER_multihashmap_remove_all (pg->
1674 peers[second].blacklisted_peers,
1683 * Add entries to the some list
1685 * @param pg the peer group we are working with
1686 * @param first index of the first peer
1687 * @param second index of the second peer
1688 * @param list the list type that we should modify
1689 * @param check GNUNET_YES to check lists before adding
1690 * GNUNET_NO to force add
1692 * @return the number of connections added (can be 0, 1 or 2)
1696 add_connections (struct GNUNET_TESTING_PeerGroup *pg, unsigned int first,
1697 unsigned int second, enum PeerLists list, unsigned int check)
1703 struct PeerConnection **first_list;
1704 struct PeerConnection **second_list;
1705 struct PeerConnection *first_iter;
1706 struct PeerConnection *second_iter;
1707 struct PeerConnection *new_first;
1708 struct PeerConnection *new_second;
1709 struct PeerConnection **first_tail;
1710 struct PeerConnection **second_tail;
1715 first_list = &pg->peers[first].allowed_peers_head;
1716 second_list = &pg->peers[second].allowed_peers_head;
1717 first_tail = &pg->peers[first].allowed_peers_tail;
1718 second_tail = &pg->peers[second].allowed_peers_tail;
1721 first_list = &pg->peers[first].connect_peers_head;
1722 second_list = &pg->peers[second].connect_peers_head;
1723 first_tail = &pg->peers[first].connect_peers_tail;
1724 second_tail = &pg->peers[second].connect_peers_tail;
1727 first_list = &pg->peers[first].blacklisted_peers_head;
1728 second_list = &pg->peers[second].blacklisted_peers_head;
1729 first_tail = &pg->peers[first].blacklisted_peers_tail;
1730 second_tail = &pg->peers[second].blacklisted_peers_tail;
1733 first_list = &pg->peers[first].connect_peers_working_set_head;
1734 second_list = &pg->peers[second].connect_peers_working_set_head;
1735 first_tail = &pg->peers[first].connect_peers_working_set_tail;
1736 second_tail = &pg->peers[second].connect_peers_working_set_tail;
1743 add_first = GNUNET_YES;
1744 add_second = GNUNET_YES;
1746 if (check == GNUNET_YES)
1748 first_iter = *first_list;
1749 while (first_iter != NULL)
1751 if (first_iter->index == second)
1753 add_first = GNUNET_NO;
1756 first_iter = first_iter->next;
1759 second_iter = *second_list;
1760 while (second_iter != NULL)
1762 if (second_iter->index == first)
1764 add_second = GNUNET_NO;
1767 second_iter = second_iter->next;
1774 new_first = GNUNET_malloc (sizeof (struct PeerConnection));
1775 new_first->index = second;
1776 GNUNET_CONTAINER_DLL_insert (*first_list, *first_tail, new_first);
1777 pg->peers[first].num_connections++;
1783 new_second = GNUNET_malloc (sizeof (struct PeerConnection));
1784 new_second->index = first;
1785 GNUNET_CONTAINER_DLL_insert (*second_list, *second_tail, new_second);
1786 pg->peers[second].num_connections++;
1794 * Scale free network construction as described in:
1796 * "Emergence of Scaling in Random Networks." Science 286, 509-512, 1999.
1798 * Start with a network of "one" peer, then progressively add
1799 * peers up to the total number. At each step, iterate over
1800 * all possible peers and connect new peer based on number of
1801 * existing connections of the target peer.
1803 * @param pg the peer group we are dealing with
1804 * @param proc the connection processor to use
1805 * @param list the peer list to use
1807 * @return the number of connections created
1810 create_scale_free (struct GNUNET_TESTING_PeerGroup *pg,
1811 GNUNET_TESTING_ConnectionProcessor proc, enum PeerLists list)
1814 unsigned int total_connections;
1815 unsigned int outer_count;
1817 unsigned int previous_total_connections;
1821 GNUNET_assert (pg->total > 1);
1823 /* Add a connection between the first two nodes */
1824 total_connections = proc (pg, 0, 1, list, GNUNET_YES);
1826 for (outer_count = 1; outer_count < pg->total; outer_count++)
1828 previous_total_connections = total_connections;
1829 for (i = 0; i < outer_count; i++)
1832 pg->peers[i].num_connections / (double) previous_total_connections;
1835 GNUNET_CRYPTO_random_u64 (GNUNET_CRYPTO_QUALITY_WEAK,
1836 UINT64_MAX)) / ((double) UINT64_MAX);
1838 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1839 "Considering connecting peer %d to peer %d\n", outer_count,
1842 if (random < probability)
1845 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Connecting peer %d to peer %d\n",
1848 total_connections += proc (pg, outer_count, i, list, GNUNET_YES);
1853 return total_connections;
1857 * Create a topology given a peer group (set of running peers)
1858 * and a connection processor. Creates a small world topology
1859 * according to the rewired ring construction. The basic
1860 * behavior is that a ring topology is created, but with some
1861 * probability instead of connecting a peer to the next
1862 * neighbor in the ring a connection will be created to a peer
1863 * selected uniformly at random. We use the TESTING
1864 * PERCENTAGE option to specify what number of
1865 * connections each peer should have. Default is 2,
1866 * which makes the ring, any given number is multiplied by
1867 * the log of the network size; i.e. a PERCENTAGE of 2 makes
1868 * each peer have on average 2logn connections. The additional
1869 * connections are made at increasing distance around the ring
1870 * from the original peer, or to random peers based on the re-
1871 * wiring probability. The TESTING
1872 * PROBABILITY option is used as the probability that a given
1873 * connection is rewired.
1875 * @param pg the peergroup to create the topology on
1876 * @param proc the connection processor to call to actually set
1877 * up connections between two peers
1878 * @param list the peer list to use
1880 * @return the number of connections that were set up
1884 create_small_world_ring (struct GNUNET_TESTING_PeerGroup *pg,
1885 GNUNET_TESTING_ConnectionProcessor proc,
1886 enum PeerLists list)
1890 unsigned int natLog;
1891 unsigned int randomPeer;
1892 double random, logNModifier, probability;
1893 unsigned int smallWorldConnections;
1898 unsigned int useAnd;
1899 int connect_attempts;
1901 logNModifier = 0.5; /* FIXME: default value? */
1903 GNUNET_CONFIGURATION_get_value_string (pg->cfg, "TESTING", "PERCENTAGE",
1906 if (sscanf (p_string, "%lf", &logNModifier) != 1)
1907 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
1909 ("Invalid value `%s' for option `%s' in section `%s': expected float\n"),
1910 p_string, "LOGNMODIFIER", "TESTING");
1911 GNUNET_free (p_string);
1913 probability = 0.5; /* FIXME: default percentage? */
1915 GNUNET_CONFIGURATION_get_value_string (pg->cfg, "TESTING", "PROBABILITY",
1918 if (sscanf (p_string, "%lf", &probability) != 1)
1919 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
1921 ("Invalid value `%s' for option `%s' in section `%s': expected float\n"),
1922 p_string, "PERCENTAGE", "TESTING");
1923 GNUNET_free (p_string);
1925 natLog = log (pg->total);
1926 connsPerPeer = ceil (natLog * logNModifier);
1928 if (connsPerPeer % 2 == 1)
1931 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, _("Target is %d connections per peer."),
1934 smallWorldConnections = 0;
1935 connect_attempts = 0;
1936 for (i = 0; i < pg->total; i++)
1939 max = i + connsPerPeer / 2;
1940 min = i - connsPerPeer / 2;
1942 if (max > pg->total - 1)
1944 max = max - pg->total;
1950 min = pg->total - 1 + min;
1954 for (j = 0; j < connsPerPeer / 2; j++)
1958 GNUNET_CRYPTO_random_u64 (GNUNET_CRYPTO_QUALITY_WEAK,
1959 UINT64_MAX) / ((double) UINT64_MAX));
1960 if (random < probability)
1962 /* Connect to uniformly selected random peer */
1964 GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK, pg->total);
1965 while ((((randomPeer < max) && (randomPeer > min)) && (useAnd == 0)) ||
1966 (((randomPeer > min) || (randomPeer < max)) && (useAnd == 1)))
1969 GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK, pg->total);
1971 smallWorldConnections += proc (pg, i, randomPeer, list, GNUNET_YES);
1975 nodeToConnect = i + j + 1;
1976 if (nodeToConnect > pg->total - 1)
1978 nodeToConnect = nodeToConnect - pg->total;
1980 connect_attempts += proc (pg, i, nodeToConnect, list, GNUNET_YES);
1986 connect_attempts += smallWorldConnections;
1988 return connect_attempts;
1992 * Create a topology given a peer group (set of running peers)
1993 * and a connection processor.
1995 * @param pg the peergroup to create the topology on
1996 * @param proc the connection processor to call to actually set
1997 * up connections between two peers
1998 * @param list the peer list to use
2000 * @return the number of connections that were set up
2004 create_nated_internet (struct GNUNET_TESTING_PeerGroup *pg,
2005 GNUNET_TESTING_ConnectionProcessor proc,
2006 enum PeerLists list)
2008 unsigned int outer_count, inner_count;
2009 unsigned int cutoff;
2010 int connect_attempts;
2011 double nat_percentage;
2014 nat_percentage = 0.6; /* FIXME: default percentage? */
2016 GNUNET_CONFIGURATION_get_value_string (pg->cfg, "TESTING", "PERCENTAGE",
2019 if (sscanf (p_string, "%lf", &nat_percentage) != 1)
2020 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2022 ("Invalid value `%s' for option `%s' in section `%s': expected float\n"),
2023 p_string, "PERCENTAGE", "TESTING");
2024 GNUNET_free (p_string);
2027 cutoff = (unsigned int) (nat_percentage * pg->total);
2028 connect_attempts = 0;
2029 for (outer_count = 0; outer_count < pg->total - 1; outer_count++)
2031 for (inner_count = outer_count + 1; inner_count < pg->total; inner_count++)
2033 if ((outer_count > cutoff) || (inner_count > cutoff))
2036 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Connecting peer %d to peer %d\n",
2037 outer_count, inner_count);
2040 proc (pg, outer_count, inner_count, list, GNUNET_YES);
2044 return connect_attempts;
2049 * Create a topology given a peer group (set of running peers)
2050 * and a connection processor.
2052 * @param pg the peergroup to create the topology on
2053 * @param proc the connection processor to call to actually set
2054 * up connections between two peers
2055 * @param list the peer list to use
2057 * @return the number of connections that were set up
2061 create_nated_internet_copy (struct GNUNET_TESTING_PeerGroup *pg,
2062 GNUNET_TESTING_ConnectionProcessor proc,
2063 enum PeerLists list)
2065 unsigned int outer_count, inner_count;
2066 unsigned int cutoff;
2067 int connect_attempts;
2068 double nat_percentage;
2071 struct ProgressMeter *conn_meter;
2073 nat_percentage = 0.6; /* FIXME: default percentage? */
2075 GNUNET_CONFIGURATION_get_value_string (pg->cfg, "TESTING", "PERCENTAGE",
2078 if (sscanf (p_string, "%lf", &nat_percentage) != 1)
2079 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2081 ("Invalid value `%s' for option `%s' in section `%s': expected float\n"),
2082 p_string, "PERCENTAGE", "TESTING");
2083 GNUNET_free (p_string);
2086 cutoff = (unsigned int) (nat_percentage * pg->total);
2088 for (outer_count = 0; outer_count < pg->total - 1; outer_count++)
2090 for (inner_count = outer_count + 1; inner_count < pg->total; inner_count++)
2092 if ((outer_count > cutoff) || (inner_count > cutoff))
2098 conn_meter = create_meter (count, "NAT COPY", GNUNET_YES);
2099 connect_attempts = 0;
2100 for (outer_count = 0; outer_count < pg->total - 1; outer_count++)
2102 for (inner_count = outer_count + 1; inner_count < pg->total; inner_count++)
2104 if ((outer_count > cutoff) || (inner_count > cutoff))
2107 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Connecting peer %d to peer %d\n",
2108 outer_count, inner_count);
2111 proc (pg, outer_count, inner_count, list, GNUNET_YES);
2112 add_connections (pg, outer_count, inner_count, ALLOWED, GNUNET_NO);
2113 update_meter (conn_meter);
2117 free_meter (conn_meter);
2119 return connect_attempts;
2124 * Create a topology given a peer group (set of running peers)
2125 * and a connection processor.
2127 * @param pg the peergroup to create the topology on
2128 * @param proc the connection processor to call to actually set
2129 * up connections between two peers
2130 * @param list the peer list to use
2132 * @return the number of connections that were set up
2136 create_small_world (struct GNUNET_TESTING_PeerGroup *pg,
2137 GNUNET_TESTING_ConnectionProcessor proc,
2138 enum PeerLists list)
2140 unsigned int i, j, k;
2141 unsigned int square;
2144 unsigned int toggle = 1;
2145 unsigned int nodeToConnect;
2146 unsigned int natLog;
2147 unsigned int node1Row;
2148 unsigned int node1Col;
2149 unsigned int node2Row;
2150 unsigned int node2Col;
2151 unsigned int distance;
2152 double probability, random, percentage;
2153 unsigned int smallWorldConnections;
2154 unsigned int small_world_it;
2156 int connect_attempts;
2158 square = floor (sqrt (pg->total));
2162 percentage = 0.5; /* FIXME: default percentage? */
2164 GNUNET_CONFIGURATION_get_value_string (pg->cfg, "TESTING", "PERCENTAGE",
2167 if (sscanf (p_string, "%lf", &percentage) != 1)
2168 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2170 ("Invalid value `%s' for option `%s' in section `%s': expected float\n"),
2171 p_string, "PERCENTAGE", "TESTING");
2172 GNUNET_free (p_string);
2174 if (percentage < 0.0)
2176 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2178 ("Invalid value `%s' for option `%s' in section `%s': got %f, needed value greater than 0\n"),
2179 "PERCENTAGE", "TESTING", percentage);
2182 probability = 0.5; /* FIXME: default percentage? */
2184 GNUNET_CONFIGURATION_get_value_string (pg->cfg, "TESTING", "PROBABILITY",
2187 if (sscanf (p_string, "%lf", &probability) != 1)
2188 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2190 ("Invalid value `%s' for option `%s' in section `%s': expected float\n"),
2191 p_string, "PROBABILITY", "TESTING");
2192 GNUNET_free (p_string);
2194 if (square * square != pg->total)
2196 while (rows * cols < pg->total)
2198 if (toggle % 2 == 0)
2207 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2208 _("Connecting nodes in 2d torus topology: %u rows %u columns\n"),
2212 connect_attempts = 0;
2213 /* Rows and columns are all sorted out, now iterate over all nodes and connect each
2214 * to the node to its right and above. Once this is over, we'll have our torus!
2215 * Special case for the last node (if the rows and columns are not equal), connect
2216 * to the first in the row to maintain topology.
2218 for (i = 0; i < pg->total; i++)
2220 /* First connect to the node to the right */
2221 if (((i + 1) % cols != 0) && (i + 1 != pg->total))
2222 nodeToConnect = i + 1;
2223 else if (i + 1 == pg->total)
2224 nodeToConnect = rows * cols - cols;
2226 nodeToConnect = i - cols + 1;
2228 connect_attempts += proc (pg, i, nodeToConnect, list, GNUNET_YES);
2232 nodeToConnect = (rows * cols) - cols + i;
2233 if (nodeToConnect >= pg->total)
2234 nodeToConnect -= cols;
2237 nodeToConnect = i - cols;
2239 if (nodeToConnect < pg->total)
2240 connect_attempts += proc (pg, i, nodeToConnect, list, GNUNET_YES);
2242 natLog = log (pg->total);
2243 #if VERBOSE_TESTING > 2
2244 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2245 _("natural log of %d is %d, will run %d iterations\n"), pg->total,
2246 natLog, (int) (natLog * percentage));
2247 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2248 _("Total connections added thus far: %u!\n"), connect_attempts);
2250 smallWorldConnections = 0;
2251 small_world_it = (unsigned int) (natLog * percentage);
2252 if (small_world_it < 1)
2254 GNUNET_assert (small_world_it > 0 && small_world_it < (unsigned int) -1);
2255 for (i = 0; i < small_world_it; i++)
2257 for (j = 0; j < pg->total; j++)
2259 /* Determine the row and column of node at position j on the 2d torus */
2260 node1Row = j / cols;
2261 node1Col = j - (node1Row * cols);
2262 for (k = 0; k < pg->total; k++)
2264 /* Determine the row and column of node at position k on the 2d torus */
2265 node2Row = k / cols;
2266 node2Col = k - (node2Row * cols);
2267 /* Simple Cartesian distance */
2268 distance = abs (node1Row - node2Row) + abs (node1Col - node2Col);
2271 /* Calculate probability as 1 over the square of the distance */
2272 probability = 1.0 / (distance * distance);
2273 /* Choose a random value between 0 and 1 */
2276 GNUNET_CRYPTO_random_u64 (GNUNET_CRYPTO_QUALITY_WEAK,
2277 UINT64_MAX)) / ((double) UINT64_MAX);
2278 /* If random < probability, then connect the two nodes */
2279 if (random < probability)
2280 smallWorldConnections += proc (pg, j, k, list, GNUNET_YES);
2286 connect_attempts += smallWorldConnections;
2287 #if VERBOSE_TESTING > 2
2288 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2289 _("Total connections added for small world: %d!\n"),
2290 smallWorldConnections);
2292 return connect_attempts;
2296 * Create a topology given a peer group (set of running peers)
2297 * and a connection processor.
2299 * @param pg the peergroup to create the topology on
2300 * @param proc the connection processor to call to actually set
2301 * up connections between two peers
2302 * @param list the peer list to use
2304 * @return the number of connections that were set up
2308 create_erdos_renyi (struct GNUNET_TESTING_PeerGroup *pg,
2309 GNUNET_TESTING_ConnectionProcessor proc,
2310 enum PeerLists list)
2313 unsigned int outer_count;
2314 unsigned int inner_count;
2315 int connect_attempts;
2319 probability = 0.5; /* FIXME: default percentage? */
2321 GNUNET_CONFIGURATION_get_value_string (pg->cfg, "TESTING", "PROBABILITY",
2324 if (sscanf (p_string, "%lf", &probability) != 1)
2325 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2327 ("Invalid value `%s' for option `%s' in section `%s': expected float\n"),
2328 p_string, "PROBABILITY", "TESTING");
2329 GNUNET_free (p_string);
2331 connect_attempts = 0;
2332 for (outer_count = 0; outer_count < pg->total - 1; outer_count++)
2334 for (inner_count = outer_count + 1; inner_count < pg->total; inner_count++)
2338 GNUNET_CRYPTO_random_u64 (GNUNET_CRYPTO_QUALITY_WEAK,
2339 UINT64_MAX)) / ((double) UINT64_MAX);
2341 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, _("rand is %f probability is %f\n"),
2342 temp_rand, probability);
2344 if (temp_rand < probability)
2347 proc (pg, outer_count, inner_count, list, GNUNET_YES);
2352 return connect_attempts;
2356 * Create a topology given a peer group (set of running peers)
2357 * and a connection processor. This particular function creates
2358 * the connections for a 2d-torus, plus additional "closest"
2359 * connections per peer.
2361 * @param pg the peergroup to create the topology on
2362 * @param proc the connection processor to call to actually set
2363 * up connections between two peers
2364 * @param list the peer list to use
2366 * @return the number of connections that were set up
2370 create_2d_torus (struct GNUNET_TESTING_PeerGroup *pg,
2371 GNUNET_TESTING_ConnectionProcessor proc, enum PeerLists list)
2374 unsigned int square;
2377 unsigned int toggle = 1;
2378 unsigned int nodeToConnect;
2379 int connect_attempts;
2381 connect_attempts = 0;
2383 square = floor (sqrt (pg->total));
2387 if (square * square != pg->total)
2389 while (rows * cols < pg->total)
2391 if (toggle % 2 == 0)
2400 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2401 _("Connecting nodes in 2d torus topology: %u rows %u columns\n"),
2404 /* Rows and columns are all sorted out, now iterate over all nodes and connect each
2405 * to the node to its right and above. Once this is over, we'll have our torus!
2406 * Special case for the last node (if the rows and columns are not equal), connect
2407 * to the first in the row to maintain topology.
2409 for (i = 0; i < pg->total; i++)
2411 /* First connect to the node to the right */
2412 if (((i + 1) % cols != 0) && (i + 1 != pg->total))
2413 nodeToConnect = i + 1;
2414 else if (i + 1 == pg->total)
2415 nodeToConnect = rows * cols - cols;
2417 nodeToConnect = i - cols + 1;
2419 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Connecting peer %d to peer %d\n", i,
2422 connect_attempts += proc (pg, i, nodeToConnect, list, GNUNET_YES);
2424 /* Second connect to the node immediately above */
2427 nodeToConnect = (rows * cols) - cols + i;
2428 if (nodeToConnect >= pg->total)
2429 nodeToConnect -= cols;
2432 nodeToConnect = i - cols;
2434 if (nodeToConnect < pg->total)
2437 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Connecting peer %d to peer %d\n", i,
2440 connect_attempts += proc (pg, i, nodeToConnect, list, GNUNET_YES);
2445 return connect_attempts;
2449 * Create a topology given a peer group (set of running peers)
2450 * and a connection processor.
2452 * @param pg the peergroup to create the topology on
2453 * @param proc the connection processor to call to actually set
2454 * up connections between two peers
2455 * @param list the peer list to use
2456 * @param check does the connection processor need to check before
2457 * performing an action on the list?
2459 * @return the number of connections that were set up
2463 create_clique (struct GNUNET_TESTING_PeerGroup *pg,
2464 GNUNET_TESTING_ConnectionProcessor proc, enum PeerLists list,
2467 unsigned int outer_count;
2468 unsigned int inner_count;
2469 int connect_attempts;
2470 struct ProgressMeter *conn_meter;
2472 connect_attempts = 0;
2475 create_meter ((((pg->total * pg->total) + pg->total) / 2) - pg->total,
2476 "Create Clique ", GNUNET_NO);
2477 for (outer_count = 0; outer_count < pg->total - 1; outer_count++)
2479 for (inner_count = outer_count + 1; inner_count < pg->total; inner_count++)
2482 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Connecting peer %d to peer %d\n",
2483 outer_count, inner_count);
2485 connect_attempts += proc (pg, outer_count, inner_count, list, check);
2486 update_meter (conn_meter);
2489 reset_meter (conn_meter);
2490 free_meter (conn_meter);
2491 return connect_attempts;
2496 * Iterator over hash map entries.
2498 * @param cls closure the peer group
2499 * @param key the key stored in the hashmap is the
2500 * index of the peer to connect to
2501 * @param value value in the hash map, handle to the peer daemon
2502 * @return GNUNET_YES if we should continue to
2507 unblacklist_iterator (void *cls, const GNUNET_HashCode * key, void *value)
2509 struct UnblacklistContext *un_ctx = cls;
2510 uint32_t second_pos;
2512 uid_from_hash (key, &second_pos);
2514 unblacklist_connections (un_ctx->pg, un_ctx->first_uid, second_pos);
2522 * Create a blacklist topology based on the allowed topology
2523 * which disallows any connections not in the allowed topology
2524 * at the transport level.
2526 * @param pg the peergroup to create the topology on
2527 * @param proc the connection processor to call to allow
2528 * up connections between two peers
2530 * @return the number of connections that were set up
2534 copy_allowed (struct GNUNET_TESTING_PeerGroup *pg,
2535 GNUNET_TESTING_ConnectionProcessor proc)
2539 struct PeerConnection *iter;
2542 struct UnblacklistContext un_ctx;
2547 for (count = 0; count < pg->total - 1; count++)
2550 iter = pg->peers[count].allowed_peers_head;
2551 while (iter != NULL)
2553 remove_connections (pg, count, iter->index, BLACKLIST, GNUNET_YES);
2554 //unblacklist_connections(pg, count, iter->index);
2558 un_ctx.first_uid = count;
2560 GNUNET_CONTAINER_multihashmap_iterate (pg->peers[count].allowed_peers,
2561 &unblacklist_iterator, &un_ctx);
2564 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Unblacklisted %u peers\n", total);
2570 * Create a topology given a peer group (set of running peers)
2571 * and a connection processor.
2573 * @param pg the peergroup to create the topology on
2574 * @param proc the connection processor to call to actually set
2575 * up connections between two peers
2576 * @param list which list should be modified
2578 * @return the number of connections that were set up
2582 create_line (struct GNUNET_TESTING_PeerGroup *pg,
2583 GNUNET_TESTING_ConnectionProcessor proc, enum PeerLists list)
2586 unsigned int connect_attempts;
2588 connect_attempts = 0;
2589 /* Connect each peer to the next highest numbered peer */
2590 for (count = 0; count < pg->total - 1; count++)
2593 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Connecting peer %d to peer %d\n",
2596 connect_attempts += proc (pg, count, count + 1, list, GNUNET_YES);
2599 return connect_attempts;
2603 * Create a topology given a peer group (set of running peers)
2604 * and a connection processor.
2606 * @param pg the peergroup to create the topology on
2607 * @param filename the file to read topology information from
2608 * @param proc the connection processor to call to actually set
2609 * up connections between two peers
2610 * @param list the peer list to use
2612 * @return the number of connections that were set up
2616 create_from_file (struct GNUNET_TESTING_PeerGroup *pg, char *filename,
2617 GNUNET_TESTING_ConnectionProcessor proc, enum PeerLists list)
2619 int connect_attempts;
2620 unsigned int first_peer_index;
2621 unsigned int second_peer_index;
2626 unsigned int total_peers;
2627 enum States curr_state;
2629 connect_attempts = 0;
2630 if (GNUNET_OK != GNUNET_DISK_file_test (filename))
2631 GNUNET_DISK_fn_write (filename, NULL, 0, GNUNET_DISK_PERM_USER_READ);
2633 if ((0 != STAT (filename, &frstat)) || (frstat.st_size == 0))
2635 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
2636 "Could not open file `%s' specified for topology!", filename);
2637 return connect_attempts;
2640 data = GNUNET_malloc_large (frstat.st_size);
2641 GNUNET_assert (data != NULL);
2642 if (frstat.st_size != GNUNET_DISK_fn_read (filename, data, frstat.st_size))
2644 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
2645 "Could not read file %s specified for host list, ending test!",
2648 return connect_attempts;
2653 first_peer_index = 0;
2654 /* First line should contain a single integer, specifying the number of peers */
2655 /* Each subsequent line should contain this format PEER_INDEX:OTHER_PEER_INDEX[,...] */
2656 curr_state = NUM_PEERS;
2657 while (count < frstat.st_size - 1)
2659 if ((buf[count] == '\n') || (buf[count] == ' '))
2669 total_peers = strtoul (&buf[count], NULL, 10);
2672 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2673 "Failed to read number of peers from topology file!\n");
2675 return connect_attempts;
2678 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Found %u total peers in topology\n",
2681 GNUNET_assert (total_peers == pg->total);
2682 curr_state = PEER_INDEX;
2683 while ((buf[count] != '\n') && (count < frstat.st_size - 1))
2689 first_peer_index = strtoul (&buf[count], NULL, 10);
2692 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2693 "Failed to read peer index from topology file!\n");
2695 return connect_attempts;
2697 while ((buf[count] != ':') && (count < frstat.st_size - 1))
2700 curr_state = OTHER_PEER_INDEX;
2703 if (1 == sscanf (&buf[count], ":"))
2704 curr_state = OTHER_PEER_INDEX;
2707 case OTHER_PEER_INDEX:
2709 second_peer_index = strtoul (&buf[count], NULL, 10);
2712 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2713 "Failed to peer index from topology file!\n");
2715 return connect_attempts;
2717 /* Assume file is written with first peer 1, but array index is 0 */
2719 proc (pg, first_peer_index - 1, second_peer_index - 1, list,
2721 while ((buf[count] != '\n') && (buf[count] != ',') &&
2722 (count < frstat.st_size - 1))
2724 if (buf[count] == '\n')
2726 curr_state = PEER_INDEX;
2728 else if (buf[count] != ',')
2730 curr_state = OTHER_PEER_INDEX;
2735 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
2736 "Found bad data in topology file while in state %d!\n",
2740 return connect_attempts;
2744 return connect_attempts;
2748 * Create a topology given a peer group (set of running peers)
2749 * and a connection processor.
2751 * @param pg the peergroup to create the topology on
2752 * @param proc the connection processor to call to actually set
2753 * up connections between two peers
2754 * @param list the peer list to use
2756 * @return the number of connections that were set up
2760 create_ring (struct GNUNET_TESTING_PeerGroup *pg,
2761 GNUNET_TESTING_ConnectionProcessor proc, enum PeerLists list)
2764 int connect_attempts;
2766 connect_attempts = 0;
2768 /* Connect each peer to the next highest numbered peer */
2769 for (count = 0; count < pg->total - 1; count++)
2772 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Connecting peer %d to peer %d\n",
2775 connect_attempts += proc (pg, count, count + 1, list, GNUNET_YES);
2778 /* Connect the last peer to the first peer */
2779 connect_attempts += proc (pg, pg->total - 1, 0, list, GNUNET_YES);
2781 return connect_attempts;
2786 * Iterator for writing friends of a peer to a file.
2788 * @param cls closure, an open writable file handle
2789 * @param key the key the daemon was stored under
2790 * @param value the GNUNET_TESTING_Daemon that needs to be written.
2792 * @return GNUNET_YES to continue iteration
2794 * TODO: Could replace friend_file_iterator and blacklist_file_iterator
2795 * with a single file_iterator that takes a closure which contains
2796 * the prefix to write before the peer. Then this could be used
2797 * for blacklisting multiple transports and writing the friend
2798 * file. I'm sure *someone* will complain loudly about other
2799 * things that negate these functions even existing so no point in
2803 friend_file_iterator (void *cls, const GNUNET_HashCode * key, void *value)
2805 FILE *temp_friend_handle = cls;
2806 struct GNUNET_TESTING_Daemon *peer = value;
2807 struct GNUNET_PeerIdentity *temppeer;
2808 struct GNUNET_CRYPTO_HashAsciiEncoded peer_enc;
2810 temppeer = &peer->id;
2811 GNUNET_CRYPTO_hash_to_enc (&temppeer->hashPubKey, &peer_enc);
2812 fprintf (temp_friend_handle, "%s\n", (char *) &peer_enc);
2817 struct BlacklistContext
2820 * The (open) file handle to write to
2822 FILE *temp_file_handle;
2825 * The transport that this peer will be blacklisted on.
2831 * Iterator for writing blacklist data to appropriate files.
2833 * @param cls closure, an open writable file handle
2834 * @param key the key the daemon was stored under
2835 * @param value the GNUNET_TESTING_Daemon that needs to be written.
2837 * @return GNUNET_YES to continue iteration
2840 blacklist_file_iterator (void *cls, const GNUNET_HashCode * key, void *value)
2842 struct BlacklistContext *blacklist_ctx = cls;
2843 struct GNUNET_TESTING_Daemon *peer = value;
2844 struct GNUNET_PeerIdentity *temppeer;
2845 struct GNUNET_CRYPTO_HashAsciiEncoded peer_enc;
2847 temppeer = &peer->id;
2848 GNUNET_CRYPTO_hash_to_enc (&temppeer->hashPubKey, &peer_enc);
2849 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Writing entry %s:%s to file\n",
2850 blacklist_ctx->transport, (char *) &peer_enc);
2851 fprintf (blacklist_ctx->temp_file_handle, "%s:%s\n", blacklist_ctx->transport,
2852 (char *) &peer_enc);
2859 * Create the friend files based on the PeerConnection's
2860 * of each peer in the peer group, and copy the files
2861 * to the appropriate place
2863 * @param pg the peer group we are dealing with
2866 create_and_copy_friend_files (struct GNUNET_TESTING_PeerGroup *pg)
2868 FILE *temp_friend_handle;
2869 unsigned int pg_iter;
2870 char *temp_service_path;
2871 struct GNUNET_OS_Process **procarr;
2876 enum GNUNET_OS_ProcessStatusType type;
2877 unsigned long return_code;
2885 struct GNUNET_CRYPTO_HashAsciiEncoded peer_enc;
2886 struct PeerConnection *conn_iter;
2888 procarr = GNUNET_malloc (sizeof (struct GNUNET_OS_Process *) * pg->total);
2889 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
2891 mytemp = GNUNET_DISK_mktemp ("friends");
2892 GNUNET_assert (mytemp != NULL);
2893 temp_friend_handle = fopen (mytemp, "wt");
2894 GNUNET_assert (temp_friend_handle != NULL);
2896 conn_iter = pg->peers[pg_iter].allowed_peers_head;
2897 while (conn_iter != NULL)
2899 GNUNET_CRYPTO_hash_to_enc (&pg->peers[conn_iter->index].daemon->
2900 id.hashPubKey, &peer_enc);
2901 fprintf (temp_friend_handle, "%s\n", (char *) &peer_enc);
2902 conn_iter = conn_iter->next;
2905 GNUNET_CONTAINER_multihashmap_iterate (pg->peers[pg_iter].allowed_peers,
2906 &friend_file_iterator,
2907 temp_friend_handle);
2909 fclose (temp_friend_handle);
2912 GNUNET_CONFIGURATION_get_value_string (pg->peers[pg_iter].daemon->cfg,
2913 "PATHS", "SERVICEHOME",
2914 &temp_service_path))
2916 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2918 ("No `%s' specified in peer configuration in section `%s', cannot copy friends file!\n"),
2919 "SERVICEHOME", "PATHS");
2920 if (UNLINK (mytemp) != 0)
2921 GNUNET_log_strerror_file (GNUNET_ERROR_TYPE_WARNING, "unlink", mytemp);
2922 GNUNET_free (mytemp);
2926 if (pg->peers[pg_iter].daemon->hostname == NULL) /* Local, just copy the file */
2928 GNUNET_asprintf (&arg, "%s/friends", temp_service_path);
2930 GNUNET_OS_start_process (NULL, NULL, "mv", "mv", mytemp, arg, NULL);
2931 GNUNET_assert (procarr[pg_iter] != NULL);
2933 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2934 "Copying file with command cp %s %s\n", mytemp, arg);
2936 ret = GNUNET_OS_process_wait (procarr[pg_iter]); /* FIXME: schedule this, throttle! */
2937 GNUNET_OS_process_close (procarr[pg_iter]);
2940 else /* Remote, scp the file to the correct place */
2942 if (NULL != pg->peers[pg_iter].daemon->username)
2943 GNUNET_asprintf (&arg, "%s@%s:%s/friends",
2944 pg->peers[pg_iter].daemon->username,
2945 pg->peers[pg_iter].daemon->hostname,
2948 GNUNET_asprintf (&arg, "%s:%s/friends",
2949 pg->peers[pg_iter].daemon->hostname,
2952 GNUNET_OS_start_process (NULL, NULL, "scp", "scp", mytemp, arg, NULL);
2953 GNUNET_assert (procarr[pg_iter] != NULL);
2954 ret = GNUNET_OS_process_wait (procarr[pg_iter]); /* FIXME: schedule this, throttle! */
2955 GNUNET_OS_process_close (procarr[pg_iter]);
2956 if (ret != GNUNET_OK)
2958 /* FIXME: free contents of 'procarr' array */
2959 GNUNET_free (procarr);
2960 GNUNET_free (temp_service_path);
2961 GNUNET_free (mytemp);
2965 procarr[pg_iter] = NULL;
2967 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2968 "Copying file with command scp %s %s\n", mytemp, arg);
2972 GNUNET_free (temp_service_path);
2973 GNUNET_free (mytemp);
2978 ret = GNUNET_SYSERR;
2979 while ((count < max_wait) && (ret != GNUNET_OK))
2982 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
2985 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Checking copy status of file %d\n",
2988 if (procarr[pg_iter] != NULL) /* Check for already completed! */
2990 if (GNUNET_OS_process_status (procarr[pg_iter], &type, &return_code) !=
2993 ret = GNUNET_SYSERR;
2995 else if ((type != GNUNET_OS_PROCESS_EXITED) || (return_code != 0))
2997 ret = GNUNET_SYSERR;
3001 GNUNET_OS_process_close (procarr[pg_iter]);
3002 procarr[pg_iter] = NULL;
3004 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "File %d copied\n", pg_iter);
3010 if (ret == GNUNET_SYSERR)
3012 /* FIXME: why sleep here? -CG */
3018 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
3019 _("Finished copying all friend files!\n"));
3022 GNUNET_free (procarr);
3027 * Create the blacklist files based on the PeerConnection's
3028 * of each peer in the peer group, and copy the files
3029 * to the appropriate place.
3031 * @param pg the peer group we are dealing with
3032 * @param transports space delimited list of transports to blacklist
3035 create_and_copy_blacklist_files (struct GNUNET_TESTING_PeerGroup *pg,
3036 const char *transports)
3038 FILE *temp_file_handle;
3039 unsigned int pg_iter;
3040 char *temp_service_path;
3041 struct GNUNET_OS_Process **procarr;
3044 enum GNUNET_OS_ProcessStatusType type;
3045 unsigned long return_code;
3052 char *temp_transports;
3055 struct GNUNET_CRYPTO_HashAsciiEncoded peer_enc;
3056 struct PeerConnection *conn_iter;
3058 static struct BlacklistContext blacklist_ctx;
3061 procarr = GNUNET_malloc (sizeof (struct GNUNET_OS_Process *) * pg->total);
3062 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
3064 mytemp = GNUNET_DISK_mktemp ("blacklist");
3065 GNUNET_assert (mytemp != NULL);
3066 temp_file_handle = fopen (mytemp, "wt");
3067 GNUNET_assert (temp_file_handle != NULL);
3068 temp_transports = GNUNET_strdup (transports);
3070 blacklist_ctx.temp_file_handle = temp_file_handle;
3072 transport_len = strlen (temp_transports) + 1;
3075 for (i = 0; i < transport_len; i++)
3077 if ((temp_transports[i] == ' ') && (pos == NULL))
3078 continue; /* At start of string (whitespace) */
3079 else if ((temp_transports[i] == ' ') || (temp_transports[i] == '\0')) /* At end of string */
3081 temp_transports[i] = '\0';
3083 conn_iter = pg->peers[pg_iter].blacklisted_peers_head;
3084 while (conn_iter != NULL)
3086 GNUNET_CRYPTO_hash_to_enc (&pg->peers[conn_iter->index].daemon->
3087 id.hashPubKey, &peer_enc);
3088 fprintf (temp_file_handle, "%s:%s\n", pos, (char *) &peer_enc);
3089 conn_iter = conn_iter->next;
3092 blacklist_ctx.transport = pos;
3093 (void) GNUNET_CONTAINER_multihashmap_iterate (pg->
3095 [pg_iter].blacklisted_peers,
3096 &blacklist_file_iterator,
3100 } /* At beginning of actual string */
3101 else if (pos == NULL)
3103 pos = &temp_transports[i];
3107 GNUNET_free (temp_transports);
3108 fclose (temp_file_handle);
3111 GNUNET_CONFIGURATION_get_value_string (pg->peers[pg_iter].daemon->cfg,
3112 "PATHS", "SERVICEHOME",
3113 &temp_service_path))
3115 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
3117 ("No `%s' specified in peer configuration in section `%s', cannot copy friends file!\n"),
3118 "SERVICEHOME", "PATHS");
3119 if (UNLINK (mytemp) != 0)
3120 GNUNET_log_strerror_file (GNUNET_ERROR_TYPE_WARNING, "unlink", mytemp);
3121 GNUNET_free (mytemp);
3125 if (pg->peers[pg_iter].daemon->hostname == NULL) /* Local, just copy the file */
3127 GNUNET_asprintf (&arg, "%s/blacklist", temp_service_path);
3129 GNUNET_OS_start_process (NULL, NULL, "mv", "mv", mytemp, arg, NULL);
3131 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
3132 _("Copying file with command cp %s %s\n"), mytemp, arg);
3137 else /* Remote, scp the file to the correct place */
3139 if (NULL != pg->peers[pg_iter].daemon->username)
3140 GNUNET_asprintf (&arg, "%s@%s:%s/blacklist",
3141 pg->peers[pg_iter].daemon->username,
3142 pg->peers[pg_iter].daemon->hostname,
3145 GNUNET_asprintf (&arg, "%s:%s/blacklist",
3146 pg->peers[pg_iter].daemon->hostname,
3149 GNUNET_OS_start_process (NULL, NULL, "scp", "scp", mytemp, arg, NULL);
3150 GNUNET_assert (procarr[pg_iter] != NULL);
3151 GNUNET_OS_process_wait (procarr[pg_iter]); /* FIXME: add scheduled blacklist file copy that parallelizes file copying! */
3154 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
3155 _("Copying file with command scp %s %s\n"), mytemp, arg);
3159 GNUNET_free (temp_service_path);
3160 GNUNET_free (mytemp);
3164 ret = GNUNET_SYSERR;
3165 while ((count < max_wait) && (ret != GNUNET_OK))
3168 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
3171 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
3172 _("Checking copy status of file %d\n"), pg_iter);
3174 if (procarr[pg_iter] != NULL) /* Check for already completed! */
3176 if (GNUNET_OS_process_status (procarr[pg_iter], &type, &return_code) !=
3179 ret = GNUNET_SYSERR;
3181 else if ((type != GNUNET_OS_PROCESS_EXITED) || (return_code != 0))
3183 ret = GNUNET_SYSERR;
3187 GNUNET_OS_process_close (procarr[pg_iter]);
3188 procarr[pg_iter] = NULL;
3190 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, _("File %d copied\n"), pg_iter);
3196 if (ret == GNUNET_SYSERR)
3198 /* FIXME: why sleep here? -CG */
3204 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
3205 _("Finished copying all blacklist files!\n"));
3207 GNUNET_free (procarr);
3211 /* Forward Declaration */
3213 schedule_connect (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc);
3216 * Choose a random peer's next connection to create, and
3217 * call schedule_connect to set up the connect task.
3219 * @param pg the peer group to connect
3222 preschedule_connect (struct GNUNET_TESTING_PeerGroup *pg)
3224 struct ConnectTopologyContext *ct_ctx = &pg->ct_ctx;
3225 struct PeerConnection *connection_iter;
3226 struct ConnectContext *connect_context;
3227 uint32_t random_peer;
3229 if (ct_ctx->remaining_connections == 0)
3232 GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK, pg->total);
3233 while (pg->peers[random_peer].connect_peers_head == NULL)
3235 GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK, pg->total);
3237 connection_iter = pg->peers[random_peer].connect_peers_head;
3238 connect_context = GNUNET_malloc (sizeof (struct ConnectContext));
3239 connect_context->first_index = random_peer;
3240 connect_context->second_index = connection_iter->index;
3241 connect_context->ct_ctx = ct_ctx;
3242 connect_context->task =
3243 GNUNET_SCHEDULER_add_now (&schedule_connect, connect_context);
3244 GNUNET_CONTAINER_DLL_insert (pg->cc_head, pg->cc_tail, connect_context);
3245 GNUNET_CONTAINER_DLL_remove (pg->peers[random_peer].connect_peers_head,
3246 pg->peers[random_peer].connect_peers_tail,
3248 GNUNET_free (connection_iter);
3249 ct_ctx->remaining_connections--;
3253 /* Forward declaration */
3255 schedule_send_hellos (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc);
3258 * Close connections and free the hello context.
3260 * @param cls the 'struct SendHelloContext *'
3261 * @param tc scheduler context
3264 free_hello_context (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
3266 struct SendHelloContext *send_hello_context = cls;
3268 if (send_hello_context->peer->daemon->server != NULL)
3270 GNUNET_CORE_disconnect (send_hello_context->peer->daemon->server);
3271 send_hello_context->peer->daemon->server = NULL;
3273 if (send_hello_context->peer->daemon->th != NULL)
3275 GNUNET_TRANSPORT_disconnect (send_hello_context->peer->daemon->th);
3276 send_hello_context->peer->daemon->th = NULL;
3278 if (send_hello_context->core_connect_task != GNUNET_SCHEDULER_NO_TASK)
3280 GNUNET_SCHEDULER_cancel (send_hello_context->core_connect_task);
3281 send_hello_context->core_connect_task = GNUNET_SCHEDULER_NO_TASK;
3283 send_hello_context->pg->outstanding_connects--;
3284 GNUNET_free (send_hello_context);
3288 * For peers that haven't yet connected, notify
3289 * the caller that they have failed (timeout).
3291 * @param cls the 'struct SendHelloContext *'
3292 * @param tc scheduler context
3295 notify_remaining_connections_failed (void *cls,
3296 const struct GNUNET_SCHEDULER_TaskContext
3299 struct SendHelloContext *send_hello_context = cls;
3300 struct GNUNET_TESTING_PeerGroup *pg = send_hello_context->pg;
3301 struct PeerConnection *connection;
3303 GNUNET_CORE_disconnect (send_hello_context->peer->daemon->server);
3304 send_hello_context->peer->daemon->server = NULL;
3306 connection = send_hello_context->peer->connect_peers_head;
3308 while (connection != NULL)
3310 if (pg->notify_connection != NULL)
3312 pg->notify_connection (pg->notify_connection_cls, &send_hello_context->peer->daemon->id, &pg->peers[connection->index].daemon->id, 0, /* FIXME */
3313 send_hello_context->peer->daemon->cfg,
3314 pg->peers[connection->index].daemon->cfg,
3315 send_hello_context->peer->daemon,
3316 pg->peers[connection->index].daemon,
3317 "Peers failed to connect (timeout)");
3319 GNUNET_CONTAINER_DLL_remove (send_hello_context->peer->connect_peers_head,
3320 send_hello_context->peer->connect_peers_tail,
3322 GNUNET_free (connection);
3323 connection = connection->next;
3325 GNUNET_SCHEDULER_add_now (&free_hello_context, send_hello_context);
3327 other_peer = &pg->peers[connection->index];
3332 * For peers that haven't yet connected, send
3333 * CORE connect requests.
3335 * @param cls the 'struct SendHelloContext *'
3336 * @param tc scheduler context
3339 send_core_connect_requests (void *cls,
3340 const struct GNUNET_SCHEDULER_TaskContext *tc)
3342 struct SendHelloContext *send_hello_context = cls;
3343 struct PeerConnection *conn;
3345 GNUNET_assert (send_hello_context->peer->daemon->server != NULL);
3347 send_hello_context->core_connect_task = GNUNET_SCHEDULER_NO_TASK;
3349 send_hello_context->connect_attempts++;
3350 if (send_hello_context->connect_attempts <
3351 send_hello_context->pg->ct_ctx.connect_attempts)
3353 conn = send_hello_context->peer->connect_peers_head;
3354 while (conn != NULL)
3356 GNUNET_TRANSPORT_try_connect (send_hello_context->peer->daemon->th,
3357 &send_hello_context->pg->peers[conn->
3362 send_hello_context->core_connect_task =
3363 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_divide
3364 (send_hello_context->pg->
3365 ct_ctx.connect_timeout,
3366 send_hello_context->pg->
3367 ct_ctx.connect_attempts),
3368 &send_core_connect_requests,
3369 send_hello_context);
3373 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
3374 "Timeout before all connections created, marking rest as failed!\n");
3375 GNUNET_SCHEDULER_add_now (¬ify_remaining_connections_failed,
3376 send_hello_context);
3382 * Success, connection is up. Signal client our success.
3384 * @param cls our "struct SendHelloContext"
3385 * @param peer identity of the peer that has connected
3386 * @param atsi performance information
3388 * FIXME: remove peers from BOTH lists, call notify twice, should
3389 * double the speed of connections as long as the list iteration
3390 * doesn't take too long!
3393 core_connect_notify (void *cls, const struct GNUNET_PeerIdentity *peer,
3394 const struct GNUNET_ATS_Information *atsi)
3396 struct SendHelloContext *send_hello_context = cls;
3397 struct PeerConnection *connection;
3398 struct GNUNET_TESTING_PeerGroup *pg = send_hello_context->pg;
3401 struct PeerData *other_peer;
3404 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Connected peer %s to peer %s\n",
3405 ctx->d1->shortname, GNUNET_i2s (peer));
3409 memcmp (&send_hello_context->peer->daemon->id, peer,
3410 sizeof (struct GNUNET_PeerIdentity)))
3413 connection = send_hello_context->peer->connect_peers_head;
3418 while ((connection != NULL) &&
3420 memcmp (&pg->peers[connection->index].daemon->id, peer,
3421 sizeof (struct GNUNET_PeerIdentity))))
3423 connection = connection->next;
3426 if (connection == NULL)
3428 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
3429 "Connected peer %s to %s, not in list (no problem(?))\n",
3430 GNUNET_i2s (peer), send_hello_context->peer->daemon->shortname);
3435 other_peer = &pg->peers[connection->index];
3437 if (pg->notify_connection != NULL)
3439 pg->notify_connection (pg->notify_connection_cls, &send_hello_context->peer->daemon->id, peer, 0, /* FIXME */
3440 send_hello_context->peer->daemon->cfg,
3441 pg->peers[connection->index].daemon->cfg,
3442 send_hello_context->peer->daemon,
3443 pg->peers[connection->index].daemon, NULL);
3445 GNUNET_CONTAINER_DLL_remove (send_hello_context->peer->connect_peers_head,
3446 send_hello_context->peer->connect_peers_tail,
3448 GNUNET_free (connection);
3452 /* Notify of reverse connection and remove from other peers list of outstanding */
3453 if (other_peer != NULL)
3455 connection = other_peer->connect_peers_head;
3456 while ((connection != NULL) &&
3458 memcmp (&send_hello_context->peer->daemon->id,
3459 &pg->peers[connection->index].daemon->id,
3460 sizeof (struct GNUNET_PeerIdentity))))
3462 connection = connection->next;
3464 if (connection != NULL)
3466 if (pg->notify_connection != NULL)
3468 pg->notify_connection (pg->notify_connection_cls, peer, &send_hello_context->peer->daemon->id, 0, /* FIXME */
3469 pg->peers[connection->index].daemon->cfg,
3470 send_hello_context->peer->daemon->cfg,
3471 pg->peers[connection->index].daemon,
3472 send_hello_context->peer->daemon, NULL);
3475 GNUNET_CONTAINER_DLL_remove (other_peer->connect_peers_head,
3476 other_peer->connect_peers_tail, connection);
3477 GNUNET_free (connection);
3482 if (send_hello_context->peer->connect_peers_head == NULL)
3484 GNUNET_SCHEDULER_add_now (&free_hello_context, send_hello_context);
3489 * Notify of a successful connection to the core service.
3491 * @param cls a struct SendHelloContext *
3492 * @param server handle to the core service
3493 * @param my_identity the peer identity of this peer
3496 core_init (void *cls, struct GNUNET_CORE_Handle *server,
3497 struct GNUNET_PeerIdentity *my_identity)
3499 struct SendHelloContext *send_hello_context = cls;
3501 send_hello_context->core_ready = GNUNET_YES;
3505 * Function called once a hello has been sent
3506 * to the transport, move on to the next one
3507 * or go away forever.
3509 * @param cls the 'struct SendHelloContext *'
3510 * @param tc scheduler context
3513 hello_sent_callback (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
3515 struct SendHelloContext *send_hello_context = cls;
3517 //unsigned int pg_iter;
3518 if ((tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN) != 0)
3520 GNUNET_free (send_hello_context);
3524 send_hello_context->pg->remaining_hellos--;
3526 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Sent HELLO, have %d remaining!\n",
3527 send_hello_context->pg->remaining_hellos);
3529 if (send_hello_context->peer_pos == NULL) /* All HELLOs (for this peer!) have been transmitted! */
3532 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
3533 "All hellos for this peer sent, disconnecting transport!\n");
3535 GNUNET_assert (send_hello_context->peer->daemon->th != NULL);
3536 GNUNET_TRANSPORT_disconnect (send_hello_context->peer->daemon->th);
3537 send_hello_context->peer->daemon->th = NULL;
3538 GNUNET_assert (send_hello_context->peer->daemon->server == NULL);
3539 send_hello_context->peer->daemon->server =
3540 GNUNET_CORE_connect (send_hello_context->peer->cfg, 1,
3541 send_hello_context, &core_init,
3542 &core_connect_notify, NULL, NULL, NULL, GNUNET_NO,
3543 NULL, GNUNET_NO, no_handlers);
3545 send_hello_context->core_connect_task =
3546 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_divide
3547 (send_hello_context->pg->
3548 ct_ctx.connect_timeout,
3549 send_hello_context->pg->
3550 ct_ctx.connect_attempts),
3551 &send_core_connect_requests,
3552 send_hello_context);
3555 GNUNET_SCHEDULER_add_now (&schedule_send_hellos, send_hello_context);
3559 * Connect to a peer, give it all the HELLO's of those peers
3560 * we will later ask it to connect to.
3562 * @param ct_ctx the overall connection context
3565 schedule_send_hellos (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
3567 struct SendHelloContext *send_hello_context = cls;
3568 struct GNUNET_TESTING_PeerGroup *pg = send_hello_context->pg;
3570 if ((tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN) != 0)
3572 GNUNET_free (send_hello_context);
3576 GNUNET_assert (send_hello_context->peer_pos != NULL); /* All of the HELLO sends to be scheduled have been scheduled! */
3578 if (((send_hello_context->peer->daemon->th == NULL) &&
3579 (pg->outstanding_connects > pg->max_outstanding_connections)) ||
3580 (pg->stop_connects == GNUNET_YES))
3582 #if VERBOSE_TESTING > 2
3583 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
3585 ("Delaying connect, we have too many outstanding connections!\n"));
3587 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply
3588 (GNUNET_TIME_UNIT_MILLISECONDS, 100),
3589 &schedule_send_hellos, send_hello_context);
3593 #if VERBOSE_TESTING > 2
3594 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
3595 _("Creating connection, outstanding_connections is %d\n"),
3596 outstanding_connects);
3598 if (send_hello_context->peer->daemon->th == NULL)
3600 pg->outstanding_connects++; /* Actual TRANSPORT, CORE connections! */
3601 send_hello_context->peer->daemon->th =
3602 GNUNET_TRANSPORT_connect (send_hello_context->peer->cfg, NULL,
3603 send_hello_context, NULL, NULL, NULL);
3606 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
3607 _("Offering HELLO of peer %s to peer %s\n"),
3608 send_hello_context->peer->daemon->shortname,
3609 pg->peers[send_hello_context->peer_pos->index].
3612 GNUNET_TRANSPORT_offer_hello (send_hello_context->peer->daemon->th,
3613 (const struct GNUNET_MessageHeader *)
3614 pg->peers[send_hello_context->peer_pos->
3615 index].daemon->hello,
3616 &hello_sent_callback, send_hello_context);
3617 send_hello_context->peer_pos = send_hello_context->peer_pos->next;
3618 GNUNET_assert (send_hello_context->peer->daemon->th != NULL);
3624 * Internal notification of a connection, kept so that we can ensure some connections
3625 * happen instead of flooding all testing daemons with requests to connect.
3628 internal_connect_notify (void *cls, const struct GNUNET_PeerIdentity *first,
3629 const struct GNUNET_PeerIdentity *second,
3631 const struct GNUNET_CONFIGURATION_Handle *first_cfg,
3632 const struct GNUNET_CONFIGURATION_Handle *second_cfg,
3633 struct GNUNET_TESTING_Daemon *first_daemon,
3634 struct GNUNET_TESTING_Daemon *second_daemon,
3637 struct ConnectContext *connect_ctx = cls;
3638 struct ConnectTopologyContext *ct_ctx = connect_ctx->ct_ctx;
3639 struct GNUNET_TESTING_PeerGroup *pg = ct_ctx->pg;
3640 struct PeerConnection *connection;
3642 GNUNET_assert (NULL != connect_ctx->cc);
3643 connect_ctx->cc = NULL;
3644 GNUNET_assert (0 < pg->outstanding_connects);
3645 pg->outstanding_connects--;
3646 GNUNET_CONTAINER_DLL_remove (pg->cc_head, pg->cc_tail, connect_ctx);
3648 * Check whether the inverse connection has been scheduled yet,
3649 * if not, we can remove it from the other peers list and avoid
3650 * even trying to connect them again!
3652 connection = pg->peers[connect_ctx->second_index].connect_peers_head;
3657 while ((connection != NULL) &&
3659 memcmp (first, &pg->peers[connection->index].daemon->id,
3660 sizeof (struct GNUNET_PeerIdentity))))
3661 connection = connection->next;
3663 if (connection != NULL) /* Can safely remove! */
3665 GNUNET_assert (0 < ct_ctx->remaining_connections);
3666 ct_ctx->remaining_connections--;
3667 if (pg->notify_connection != NULL) /* Notify of reverse connection */
3668 pg->notify_connection (pg->notify_connection_cls, second, first, distance,
3669 second_cfg, first_cfg, second_daemon, first_daemon,
3672 GNUNET_CONTAINER_DLL_remove (pg->
3674 second_index].connect_peers_head,
3675 pg->peers[connect_ctx->
3676 second_index].connect_peers_tail,
3678 GNUNET_free (connection);
3681 if (ct_ctx->remaining_connections == 0)
3683 if (ct_ctx->notify_connections_done != NULL)
3685 ct_ctx->notify_connections_done (ct_ctx->notify_cls, NULL);
3686 ct_ctx->notify_connections_done = NULL;
3690 preschedule_connect (pg);
3692 if (pg->notify_connection != NULL)
3693 pg->notify_connection (pg->notify_connection_cls, first, second, distance,
3694 first_cfg, second_cfg, first_daemon, second_daemon,
3696 GNUNET_free (connect_ctx);
3700 * Either delay a connection (because there are too many outstanding)
3701 * or schedule it for right now.
3703 * @param cls a connection context
3704 * @param tc the task runtime context
3707 schedule_connect (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
3709 struct ConnectContext *connect_context = cls;
3710 struct GNUNET_TESTING_PeerGroup *pg = connect_context->ct_ctx->pg;
3712 connect_context->task = GNUNET_SCHEDULER_NO_TASK;
3713 if ((tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN) != 0)
3716 if ((pg->outstanding_connects > pg->max_outstanding_connections) ||
3717 (pg->stop_connects == GNUNET_YES))
3720 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
3722 ("Delaying connect, we have too many outstanding connections!\n"));
3724 connect_context->task =
3725 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply
3726 (GNUNET_TIME_UNIT_MILLISECONDS, 100),
3727 &schedule_connect, connect_context);
3731 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
3733 ("Creating connection, outstanding_connections is %d (max %d)\n"),
3734 pg->outstanding_connects, pg->max_outstanding_connections);
3736 pg->outstanding_connects++;
3737 pg->total_connects_scheduled++;
3738 GNUNET_assert (NULL == connect_context->cc);
3739 connect_context->cc =
3740 GNUNET_TESTING_daemons_connect (pg->
3741 peers[connect_context->
3742 first_index].daemon,
3743 pg->peers[connect_context->
3744 second_index].daemon,
3745 connect_context->ct_ctx->connect_timeout,
3746 connect_context->ct_ctx->connect_attempts,
3752 &internal_connect_notify,
3759 * Iterator for actually scheduling connections to be created
3760 * between two peers.
3762 * @param cls closure, a GNUNET_TESTING_Daemon
3763 * @param key the key the second Daemon was stored under
3764 * @param value the GNUNET_TESTING_Daemon that the first is to connect to
3766 * @return GNUNET_YES to continue iteration
3769 connect_iterator (void *cls, const GNUNET_HashCode * key, void *value)
3771 struct ConnectTopologyContext *ct_ctx = cls;
3772 struct PeerData *first = ct_ctx->first;
3773 struct GNUNET_TESTING_Daemon *second = value;
3774 struct ConnectContext *connect_context;
3776 connect_context = GNUNET_malloc (sizeof (struct ConnectContext));
3777 connect_context->first = first->daemon;
3778 connect_context->second = second;
3779 connect_context->ct_ctx = ct_ctx;
3780 connect_context->task =
3781 GNUNET_SCHEDULER_add_now (&schedule_connect, connect_context);
3782 GNUNET_CONTAINER_DLL_insert (ct_ctx->pg->cc_head, ct_ctx->pg->cc_tail,
3790 * Iterator for copying all entries in the allowed hashmap to the
3793 * @param cls closure, a GNUNET_TESTING_Daemon
3794 * @param key the key the second Daemon was stored under
3795 * @param value the GNUNET_TESTING_Daemon that the first is to connect to
3797 * @return GNUNET_YES to continue iteration
3800 copy_topology_iterator (void *cls, const GNUNET_HashCode * key, void *value)
3802 struct PeerData *first = cls;
3804 GNUNET_assert (GNUNET_OK ==
3805 GNUNET_CONTAINER_multihashmap_put (first->connect_peers, key,
3807 GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY));
3814 * Make the peers to connect the same as those that are allowed to be
3817 * @param pg the peer group
3820 copy_allowed_topology (struct GNUNET_TESTING_PeerGroup *pg)
3822 unsigned int pg_iter;
3827 struct PeerConnection *iter;
3831 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
3834 iter = pg->peers[pg_iter].allowed_peers_head;
3835 while (iter != NULL)
3837 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
3838 "Creating connection between %d and %d\n", pg_iter,
3840 total += add_connections (pg, pg_iter, iter->index, CONNECT, GNUNET_YES);
3841 //total += add_actual_connections(pg, pg_iter, iter->index);
3846 GNUNET_CONTAINER_multihashmap_iterate (pg->peers[pg_iter].allowed_peers,
3847 ©_topology_iterator,
3848 &pg->peers[pg_iter]);
3850 if (GNUNET_SYSERR == ret)
3851 return GNUNET_SYSERR;
3853 total = total + ret;
3860 * Connect the topology as specified by the PeerConnection's
3861 * of each peer in the peer group
3863 * @param pg the peer group we are dealing with
3864 * @param connect_timeout how long try connecting two peers
3865 * @param connect_attempts how many times (max) to attempt
3866 * @param notify_callback callback to notify when finished
3867 * @param notify_cls closure for notify callback
3869 * @return the number of connections that will be attempted
3872 connect_topology (struct GNUNET_TESTING_PeerGroup *pg,
3873 struct GNUNET_TIME_Relative connect_timeout,
3874 unsigned int connect_attempts,
3875 GNUNET_TESTING_NotifyCompletion notify_callback,
3878 unsigned int pg_iter;
3882 struct PeerConnection *connection_iter;
3885 struct SendHelloContext *send_hello_context;
3889 pg->ct_ctx.notify_connections_done = notify_callback;
3890 pg->ct_ctx.notify_cls = notify_cls;
3893 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
3896 connection_iter = pg->peers[pg_iter].connect_peers_head;
3897 while (connection_iter != NULL)
3899 connection_iter = connection_iter->next;
3904 GNUNET_CONTAINER_multihashmap_size (pg->peers[pg_iter].connect_peers);
3911 pg->ct_ctx.connect_timeout = connect_timeout;
3912 pg->ct_ctx.connect_attempts = connect_attempts;
3913 pg->ct_ctx.remaining_connections = total;
3916 /* First give all peers the HELLO's of other peers (connect to first peer's transport service, give HELLO's of other peers, continue...) */
3917 pg->remaining_hellos = total;
3918 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
3920 send_hello_context = GNUNET_malloc (sizeof (struct SendHelloContext));
3921 send_hello_context->peer = &pg->peers[pg_iter];
3922 send_hello_context->peer_pos = pg->peers[pg_iter].connect_peers_head;
3923 send_hello_context->pg = pg;
3924 GNUNET_SCHEDULER_add_now (&schedule_send_hellos, send_hello_context);
3927 for (pg_iter = 0; pg_iter < pg->max_outstanding_connections; pg_iter++)
3929 preschedule_connect (pg);
3937 * Takes a peer group and creates a topology based on the
3938 * one specified. Creates a topology means generates friend
3939 * files for the peers so they can only connect to those allowed
3940 * by the topology. This will only have an effect once peers
3941 * are started if the FRIENDS_ONLY option is set in the base
3942 * config. Also takes an optional restrict topology which
3943 * disallows connections based on particular transports
3944 * UNLESS they are specified in the restricted topology.
3946 * @param pg the peer group struct representing the running peers
3947 * @param topology which topology to connect the peers in
3948 * @param restrict_topology disallow restrict_transports transport
3949 * connections to peers NOT in this topology
3950 * use GNUNET_TESTING_TOPOLOGY_NONE for no restrictions
3951 * @param restrict_transports space delimited list of transports to blacklist
3952 * to create restricted topology
3954 * @return the maximum number of connections were all allowed peers
3955 * connected to each other
3958 GNUNET_TESTING_create_topology (struct GNUNET_TESTING_PeerGroup *pg,
3959 enum GNUNET_TESTING_Topology topology,
3960 enum GNUNET_TESTING_Topology restrict_topology,
3961 const char *restrict_transports)
3965 unsigned int num_connections;
3966 int unblacklisted_connections;
3968 struct PeerConnection *conn_iter;
3969 struct PeerConnection *temp_conn;
3975 for (i = 0; i < pg->total; i++)
3977 pg->peers[i].allowed_peers = GNUNET_CONTAINER_multihashmap_create (100);
3978 pg->peers[i].connect_peers = GNUNET_CONTAINER_multihashmap_create (100);
3979 pg->peers[i].blacklisted_peers = GNUNET_CONTAINER_multihashmap_create (100);
3980 pg->peers[i].pg = pg;
3986 case GNUNET_TESTING_TOPOLOGY_CLIQUE:
3988 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, _("Creating clique topology\n"));
3990 num_connections = create_clique (pg, &add_connections, ALLOWED, GNUNET_NO);
3992 case GNUNET_TESTING_TOPOLOGY_SMALL_WORLD_RING:
3994 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
3995 _("Creating small world (ring) topology\n"));
3997 num_connections = create_small_world_ring (pg, &add_connections, ALLOWED);
3999 case GNUNET_TESTING_TOPOLOGY_SMALL_WORLD:
4001 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
4002 _("Creating small world (2d-torus) topology\n"));
4004 num_connections = create_small_world (pg, &add_connections, ALLOWED);
4006 case GNUNET_TESTING_TOPOLOGY_RING:
4008 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, _("Creating ring topology\n"));
4010 num_connections = create_ring (pg, &add_connections, ALLOWED);
4012 case GNUNET_TESTING_TOPOLOGY_2D_TORUS:
4014 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, _("Creating 2d torus topology\n"));
4016 num_connections = create_2d_torus (pg, &add_connections, ALLOWED);
4018 case GNUNET_TESTING_TOPOLOGY_ERDOS_RENYI:
4020 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, _("Creating Erdos-Renyi topology\n"));
4022 num_connections = create_erdos_renyi (pg, &add_connections, ALLOWED);
4024 case GNUNET_TESTING_TOPOLOGY_INTERNAT:
4026 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, _("Creating InterNAT topology\n"));
4028 num_connections = create_nated_internet (pg, &add_connections, ALLOWED);
4030 case GNUNET_TESTING_TOPOLOGY_SCALE_FREE:
4032 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, _("Creating Scale Free topology\n"));
4034 num_connections = create_scale_free (pg, &add_connections, ALLOWED);
4036 case GNUNET_TESTING_TOPOLOGY_LINE:
4038 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
4039 _("Creating straight line topology\n"));
4041 num_connections = create_line (pg, &add_connections, ALLOWED);
4043 case GNUNET_TESTING_TOPOLOGY_FROM_FILE:
4045 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, _("Creating topology from file!\n"));
4048 GNUNET_CONFIGURATION_get_value_string (pg->cfg, "testing",
4049 "topology_file", &filename))
4051 create_from_file (pg, filename, &add_connections, ALLOWED);
4054 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
4055 "Missing configuration option TESTING:TOPOLOGY_FILE for creating topology from file!\n");
4056 num_connections = 0;
4059 case GNUNET_TESTING_TOPOLOGY_NONE:
4061 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
4063 ("Creating no allowed topology (all peers can connect at core level)\n"));
4065 num_connections = pg->total * pg->total; /* Clique is allowed! */
4068 num_connections = 0;
4073 GNUNET_CONFIGURATION_get_value_yesno (pg->cfg, "TESTING", "F2F"))
4075 ret = create_and_copy_friend_files (pg);
4076 if (ret != GNUNET_OK)
4079 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
4080 _("Failed during friend file copying!\n"));
4082 return GNUNET_SYSERR;
4087 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
4088 _("Friend files created/copied successfully!\n"));
4093 /* Use the create clique method to initially set all connections as blacklisted. */
4094 if ((restrict_topology != GNUNET_TESTING_TOPOLOGY_NONE) &&
4095 (restrict_topology != GNUNET_TESTING_TOPOLOGY_FROM_FILE))
4096 create_clique (pg, &add_connections, BLACKLIST, GNUNET_NO);
4098 return num_connections;
4100 unblacklisted_connections = 0;
4101 /* Un-blacklist connections as per the topology specified */
4102 switch (restrict_topology)
4104 case GNUNET_TESTING_TOPOLOGY_CLIQUE:
4106 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
4107 _("Blacklisting all but clique topology\n"));
4109 unblacklisted_connections =
4110 create_clique (pg, &remove_connections, BLACKLIST, GNUNET_NO);
4112 case GNUNET_TESTING_TOPOLOGY_SMALL_WORLD_RING:
4114 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
4115 _("Blacklisting all but small world (ring) topology\n"));
4117 unblacklisted_connections =
4118 create_small_world_ring (pg, &remove_connections, BLACKLIST);
4120 case GNUNET_TESTING_TOPOLOGY_SMALL_WORLD:
4122 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
4123 _("Blacklisting all but small world (2d-torus) topology\n"));
4125 unblacklisted_connections =
4126 create_small_world (pg, &remove_connections, BLACKLIST);
4128 case GNUNET_TESTING_TOPOLOGY_RING:
4130 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
4131 _("Blacklisting all but ring topology\n"));
4133 unblacklisted_connections =
4134 create_ring (pg, &remove_connections, BLACKLIST);
4136 case GNUNET_TESTING_TOPOLOGY_2D_TORUS:
4138 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
4139 _("Blacklisting all but 2d torus topology\n"));
4141 unblacklisted_connections =
4142 create_2d_torus (pg, &remove_connections, BLACKLIST);
4144 case GNUNET_TESTING_TOPOLOGY_ERDOS_RENYI:
4146 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
4147 _("Blacklisting all but Erdos-Renyi topology\n"));
4149 unblacklisted_connections =
4150 create_erdos_renyi (pg, &remove_connections, BLACKLIST);
4152 case GNUNET_TESTING_TOPOLOGY_INTERNAT:
4154 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
4155 _("Blacklisting all but InterNAT topology\n"));
4159 for (off = 0; off < pg->total; off++)
4161 conn_iter = pg->peers[off].allowed_peers_head;
4162 while (conn_iter != NULL)
4164 temp_conn = conn_iter->next;
4165 GNUNET_free (conn_iter);
4166 conn_iter = temp_conn;
4168 pg->peers[off].allowed_peers_head = NULL;
4169 pg->peers[off].allowed_peers_tail = NULL;
4171 conn_iter = pg->peers[off].connect_peers_head;
4172 while (conn_iter != NULL)
4174 temp_conn = conn_iter->next;
4175 GNUNET_free (conn_iter);
4176 conn_iter = temp_conn;
4178 pg->peers[off].connect_peers_head = NULL;
4179 pg->peers[off].connect_peers_tail = NULL;
4181 unblacklisted_connections =
4182 create_nated_internet_copy (pg, &remove_connections, BLACKLIST);
4184 unblacklisted_connections =
4185 create_nated_internet (pg, &remove_connections, BLACKLIST);
4189 case GNUNET_TESTING_TOPOLOGY_SCALE_FREE:
4191 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
4192 _("Blacklisting all but Scale Free topology\n"));
4194 unblacklisted_connections =
4195 create_scale_free (pg, &remove_connections, BLACKLIST);
4197 case GNUNET_TESTING_TOPOLOGY_LINE:
4199 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
4200 _("Blacklisting all but straight line topology\n"));
4202 unblacklisted_connections =
4203 create_line (pg, &remove_connections, BLACKLIST);
4208 if ((unblacklisted_connections > 0) && (restrict_transports != NULL))
4211 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Creating blacklist with `%s'\n",
4212 restrict_transports);
4214 ret = create_and_copy_blacklist_files (pg, restrict_transports);
4215 if (ret != GNUNET_OK)
4218 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
4219 _("Failed during blacklist file copying!\n"));
4226 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
4227 _("Blacklist files created/copied successfully!\n"));
4231 return num_connections;
4236 * Iterator for choosing random peers to connect.
4238 * @param cls closure, a RandomContext
4239 * @param key the key the second Daemon was stored under
4240 * @param value the GNUNET_TESTING_Daemon that the first is to connect to
4242 * @return GNUNET_YES to continue iteration
4245 random_connect_iterator (void *cls, const GNUNET_HashCode * key, void *value)
4247 struct RandomContext *random_ctx = cls;
4248 double random_number;
4249 uint32_t second_pos;
4250 GNUNET_HashCode first_hash;
4254 GNUNET_CRYPTO_random_u64 (GNUNET_CRYPTO_QUALITY_WEAK,
4255 UINT64_MAX)) / ((double) UINT64_MAX);
4256 if (random_number < random_ctx->percentage)
4258 GNUNET_assert (GNUNET_OK ==
4259 GNUNET_CONTAINER_multihashmap_put (random_ctx->
4260 first->connect_peers_working_set,
4262 GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY));
4265 /* Now we have considered this particular connection, remove it from the second peer so it's not double counted */
4266 uid_from_hash (key, &second_pos);
4267 hash_from_uid (random_ctx->first_uid, &first_hash);
4268 GNUNET_assert (random_ctx->pg->total > second_pos);
4269 GNUNET_assert (GNUNET_YES ==
4270 GNUNET_CONTAINER_multihashmap_remove (random_ctx->
4272 [second_pos].connect_peers,
4281 * Iterator for adding at least X peers to a peers connection set.
4283 * @param cls closure, MinimumContext
4284 * @param key the key the second Daemon was stored under
4285 * @param value the GNUNET_TESTING_Daemon that the first is to connect to
4287 * @return GNUNET_YES to continue iteration
4290 minimum_connect_iterator (void *cls, const GNUNET_HashCode * key, void *value)
4292 struct MinimumContext *min_ctx = cls;
4293 uint32_t second_pos;
4294 GNUNET_HashCode first_hash;
4297 if (GNUNET_CONTAINER_multihashmap_size
4298 (min_ctx->first->connect_peers_working_set) < min_ctx->num_to_add)
4300 for (i = 0; i < min_ctx->num_to_add; i++)
4302 if (min_ctx->pg_array[i] == min_ctx->current)
4304 GNUNET_assert (GNUNET_OK ==
4305 GNUNET_CONTAINER_multihashmap_put (min_ctx->
4306 first->connect_peers_working_set,
4308 GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY));
4309 uid_from_hash (key, &second_pos);
4310 hash_from_uid (min_ctx->first_uid, &first_hash);
4311 GNUNET_assert (min_ctx->pg->total > second_pos);
4312 GNUNET_assert (GNUNET_OK ==
4313 GNUNET_CONTAINER_multihashmap_put (min_ctx->
4315 [second_pos].connect_peers_working_set,
4319 GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY));
4320 /* Now we have added this particular connection, remove it from the second peer's map so it's not double counted */
4321 GNUNET_assert (GNUNET_YES ==
4322 GNUNET_CONTAINER_multihashmap_remove (min_ctx->
4324 [second_pos].connect_peers,
4334 return GNUNET_NO; /* We can stop iterating, we have enough peers! */
4339 * Iterator for adding peers to a connection set based on a depth first search.
4341 * @param cls closure, MinimumContext
4342 * @param key the key the second daemon was stored under
4343 * @param value the GNUNET_TESTING_Daemon that the first is to connect to
4345 * @return GNUNET_YES to continue iteration
4348 dfs_connect_iterator (void *cls, const GNUNET_HashCode * key, void *value)
4350 struct DFSContext *dfs_ctx = cls;
4351 GNUNET_HashCode first_hash;
4353 if (dfs_ctx->current == dfs_ctx->chosen)
4355 GNUNET_assert (GNUNET_OK ==
4356 GNUNET_CONTAINER_multihashmap_put (dfs_ctx->
4357 first->connect_peers_working_set,
4359 GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY));
4360 uid_from_hash (key, &dfs_ctx->second_uid);
4361 hash_from_uid (dfs_ctx->first_uid, &first_hash);
4362 GNUNET_assert (GNUNET_OK ==
4363 GNUNET_CONTAINER_multihashmap_put (dfs_ctx->
4365 second_uid].connect_peers_working_set,
4367 dfs_ctx->first->daemon,
4368 GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY));
4369 GNUNET_assert (GNUNET_YES ==
4370 GNUNET_CONTAINER_multihashmap_remove (dfs_ctx->
4372 [dfs_ctx->second_uid].connect_peers,
4376 /* Can't remove second from first yet because we are currently iterating, hence the return value in the DFSContext! */
4377 return GNUNET_NO; /* We have found our peer, don't iterate more */
4386 * From the set of connections possible, choose percentage percent of connections
4387 * to actually connect.
4389 * @param pg the peergroup we are dealing with
4390 * @param percentage what percent of total connections to make
4393 choose_random_connections (struct GNUNET_TESTING_PeerGroup *pg,
4399 struct PeerConnection *conn_iter;
4400 double random_number;
4402 struct RandomContext random_ctx;
4405 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
4408 conn_iter = pg->peers[pg_iter].connect_peers_head;
4409 while (conn_iter != NULL)
4413 GNUNET_CRYPTO_random_u64 (GNUNET_CRYPTO_QUALITY_WEAK,
4414 UINT64_MAX)) / ((double) UINT64_MAX);
4415 if (random_number < percentage)
4417 add_connections (pg, pg_iter, conn_iter->index, WORKING_SET,
4420 conn_iter = conn_iter->next;
4423 random_ctx.first_uid = pg_iter;
4424 random_ctx.first = &pg->peers[pg_iter];
4425 random_ctx.percentage = percentage;
4427 pg->peers[pg_iter].connect_peers_working_set =
4428 GNUNET_CONTAINER_multihashmap_create (pg->total);
4429 GNUNET_CONTAINER_multihashmap_iterate (pg->peers[pg_iter].connect_peers,
4430 &random_connect_iterator,
4432 /* Now remove the old connections */
4433 GNUNET_CONTAINER_multihashmap_destroy (pg->peers[pg_iter].connect_peers);
4434 /* And replace with the random set */
4435 pg->peers[pg_iter].connect_peers =
4436 pg->peers[pg_iter].connect_peers_working_set;
4440 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
4442 conn_iter = pg->peers[pg_iter].connect_peers_head;
4443 while (pg->peers[pg_iter].connect_peers_head != NULL)
4444 remove_connections (pg, pg_iter,
4445 pg->peers[pg_iter].connect_peers_head->index, CONNECT,
4448 pg->peers[pg_iter].connect_peers_head =
4449 pg->peers[pg_iter].connect_peers_working_set_head;
4450 pg->peers[pg_iter].connect_peers_tail =
4451 pg->peers[pg_iter].connect_peers_working_set_tail;
4452 pg->peers[pg_iter].connect_peers_working_set_head = NULL;
4453 pg->peers[pg_iter].connect_peers_working_set_tail = NULL;
4458 * Count the number of connections in a linked list of connections.
4460 * @param conn_list the connection list to get the count of
4462 * @return the number of elements in the list
4465 count_connections (struct PeerConnection *conn_list)
4467 struct PeerConnection *iter;
4472 while (iter != NULL)
4481 count_workingset_connections (struct GNUNET_TESTING_PeerGroup *pg)
4484 unsigned int pg_iter;
4487 struct PeerConnection *conn_iter;
4491 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
4494 conn_iter = pg->peers[pg_iter].connect_peers_working_set_head;
4495 while (conn_iter != NULL)
4498 conn_iter = conn_iter->next;
4502 GNUNET_CONTAINER_multihashmap_size (pg->
4504 [pg_iter].connect_peers_working_set);
4512 count_allowed_connections (struct GNUNET_TESTING_PeerGroup *pg)
4515 unsigned int pg_iter;
4518 struct PeerConnection *conn_iter;
4522 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
4525 conn_iter = pg->peers[pg_iter].allowed_peers_head;
4526 while (conn_iter != NULL)
4529 conn_iter = conn_iter->next;
4533 GNUNET_CONTAINER_multihashmap_size (pg->peers[pg_iter].allowed_peers);
4541 * From the set of connections possible, choose at least num connections per
4544 * @param pg the peergroup we are dealing with
4545 * @param num how many connections at least should each peer have (if possible)?
4548 choose_minimum (struct GNUNET_TESTING_PeerGroup *pg, unsigned int num)
4551 struct MinimumContext minimum_ctx;
4553 struct PeerConnection *conn_iter;
4554 unsigned int temp_list_size;
4557 uint32_t random; /* Random list entry to connect peer to */
4562 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
4564 temp_list_size = count_connections (pg->peers[pg_iter].connect_peers_head);
4565 if (temp_list_size == 0)
4567 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Peer %d has 0 connections!?!?\n",
4571 for (i = 0; i < num; i++)
4574 GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK, temp_list_size);
4575 conn_iter = pg->peers[pg_iter].connect_peers_head;
4576 for (count = 0; count < random; count++)
4577 conn_iter = conn_iter->next;
4578 /* We now have a random connection, connect it! */
4579 GNUNET_assert (conn_iter != NULL);
4580 add_connections (pg, pg_iter, conn_iter->index, WORKING_SET, GNUNET_YES);
4584 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
4586 pg->peers[pg_iter].connect_peers_working_set =
4587 GNUNET_CONTAINER_multihashmap_create (num);
4590 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
4592 minimum_ctx.first_uid = pg_iter;
4593 minimum_ctx.pg_array =
4594 GNUNET_CRYPTO_random_permute (GNUNET_CRYPTO_QUALITY_WEAK,
4595 GNUNET_CONTAINER_multihashmap_size
4596 (pg->peers[pg_iter].connect_peers));
4597 minimum_ctx.first = &pg->peers[pg_iter];
4598 minimum_ctx.pg = pg;
4599 minimum_ctx.num_to_add = num;
4600 minimum_ctx.current = 0;
4601 GNUNET_CONTAINER_multihashmap_iterate (pg->peers[pg_iter].connect_peers,
4602 &minimum_connect_iterator,
4606 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
4608 /* Remove the "old" connections */
4609 GNUNET_CONTAINER_multihashmap_destroy (pg->peers[pg_iter].connect_peers);
4610 /* And replace with the working set */
4611 pg->peers[pg_iter].connect_peers =
4612 pg->peers[pg_iter].connect_peers_working_set;
4615 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
4617 while (pg->peers[pg_iter].connect_peers_head != NULL)
4619 conn_iter = pg->peers[pg_iter].connect_peers_head;
4620 GNUNET_CONTAINER_DLL_remove (pg->peers[pg_iter].connect_peers_head,
4621 pg->peers[pg_iter].connect_peers_tail,
4623 GNUNET_free (conn_iter);
4624 /*remove_connections(pg, pg_iter, pg->peers[pg_iter].connect_peers_head->index, CONNECT, GNUNET_YES); */
4627 pg->peers[pg_iter].connect_peers_head =
4628 pg->peers[pg_iter].connect_peers_working_set_head;
4629 pg->peers[pg_iter].connect_peers_tail =
4630 pg->peers[pg_iter].connect_peers_working_set_tail;
4631 pg->peers[pg_iter].connect_peers_working_set_head = NULL;
4632 pg->peers[pg_iter].connect_peers_working_set_tail = NULL;
4637 struct FindClosestContext
4640 * The currently known closest peer.
4642 struct GNUNET_TESTING_Daemon *closest;
4645 * The info for the peer we are adding connections for.
4647 struct PeerData *curr_peer;
4650 * The distance (bits) between the current
4651 * peer and the currently known closest.
4653 unsigned int closest_dist;
4656 * The offset of the closest known peer in
4659 unsigned int closest_num;
4663 * Iterator over hash map entries of the allowed
4664 * peer connections. Find the closest, not already
4665 * connected peer and return it.
4667 * @param cls closure (struct FindClosestContext)
4668 * @param key current key code (hash of offset in pg)
4669 * @param value value in the hash map - a GNUNET_TESTING_Daemon
4670 * @return GNUNET_YES if we should continue to
4675 find_closest_peers (void *cls, const GNUNET_HashCode * key, void *value)
4677 struct FindClosestContext *closest_ctx = cls;
4678 struct GNUNET_TESTING_Daemon *daemon = value;
4680 if (((closest_ctx->closest == NULL) ||
4681 (GNUNET_CRYPTO_hash_matching_bits
4682 (&daemon->id.hashPubKey,
4683 &closest_ctx->curr_peer->daemon->id.hashPubKey) >
4684 closest_ctx->closest_dist)) &&
4686 GNUNET_CONTAINER_multihashmap_contains (closest_ctx->
4687 curr_peer->connect_peers, key)))
4689 closest_ctx->closest_dist =
4690 GNUNET_CRYPTO_hash_matching_bits (&daemon->id.hashPubKey,
4691 &closest_ctx->curr_peer->daemon->
4693 closest_ctx->closest = daemon;
4694 uid_from_hash (key, &closest_ctx->closest_num);
4700 * From the set of connections possible, choose at num connections per
4701 * peer based on depth which are closest out of those allowed. Guaranteed
4702 * to add num peers to connect to, provided there are that many peers
4703 * in the underlay topology to connect to.
4705 * @param pg the peergroup we are dealing with
4706 * @param num how many connections at least should each peer have (if possible)?
4707 * @param proc processor to actually add the connections
4708 * @param list the peer list to use
4711 add_closest (struct GNUNET_TESTING_PeerGroup *pg, unsigned int num,
4712 GNUNET_TESTING_ConnectionProcessor proc, enum PeerLists list)
4717 struct FindClosestContext closest_ctx;
4722 for (i = 0; i < num; i++) /* Each time find a closest peer (from those available) */
4724 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
4726 closest_ctx.curr_peer = &pg->peers[pg_iter];
4727 closest_ctx.closest = NULL;
4728 closest_ctx.closest_dist = 0;
4729 closest_ctx.closest_num = 0;
4730 GNUNET_CONTAINER_multihashmap_iterate (pg->peers[pg_iter].allowed_peers,
4731 &find_closest_peers, &closest_ctx);
4732 if (closest_ctx.closest != NULL)
4734 GNUNET_assert (closest_ctx.closest_num < pg->total);
4735 proc (pg, pg_iter, closest_ctx.closest_num, list);
4743 * From the set of connections possible, choose at least num connections per
4744 * peer based on depth first traversal of peer connections. If DFS leaves
4745 * peers unconnected, ensure those peers get connections.
4747 * @param pg the peergroup we are dealing with
4748 * @param num how many connections at least should each peer have (if possible)?
4751 perform_dfs (struct GNUNET_TESTING_PeerGroup *pg, unsigned int num)
4755 uint32_t starting_peer;
4756 uint32_t least_connections;
4757 uint32_t random_connection;
4760 unsigned int temp_count;
4761 struct PeerConnection *peer_iter;
4763 struct DFSContext dfs_ctx;
4764 GNUNET_HashCode second_hash;
4770 while ((count_workingset_connections (pg) < num * pg->total) &&
4771 (count_allowed_connections (pg) > 0))
4773 if (dfs_count % pg->total == 0) /* Restart the DFS at some weakly connected peer */
4775 least_connections = -1; /* Set to very high number */
4776 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
4779 count_connections (pg->
4780 peers[pg_iter].connect_peers_working_set_head);
4781 if (temp_count < least_connections)
4783 starting_peer = pg_iter;
4784 least_connections = temp_count;
4790 count_connections (pg->peers[starting_peer].connect_peers_head);
4791 if (temp_count == 0)
4792 continue; /* FIXME: infinite loop? */
4795 GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK, temp_count);
4797 peer_iter = pg->peers[starting_peer].connect_peers_head;
4798 while (temp_count < random_connection)
4800 peer_iter = peer_iter->next;
4803 GNUNET_assert (peer_iter != NULL);
4804 add_connections (pg, starting_peer, peer_iter->index, WORKING_SET,
4806 remove_connections (pg, starting_peer, peer_iter->index, CONNECT,
4808 starting_peer = peer_iter->index;
4813 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
4815 pg->peers[pg_iter].connect_peers_working_set =
4816 GNUNET_CONTAINER_multihashmap_create (num);
4821 while ((count_workingset_connections (pg) < num * pg->total) &&
4822 (count_allowed_connections (pg) > 0))
4824 if (dfs_count % pg->total == 0) /* Restart the DFS at some weakly connected peer */
4826 least_connections = -1; /* Set to very high number */
4827 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
4829 if (GNUNET_CONTAINER_multihashmap_size
4830 (pg->peers[pg_iter].connect_peers_working_set) < least_connections)
4832 starting_peer = pg_iter;
4834 GNUNET_CONTAINER_multihashmap_size (pg->
4836 [pg_iter].connect_peers_working_set);
4841 if (GNUNET_CONTAINER_multihashmap_size (pg->peers[starting_peer].connect_peers) == 0) /* Ensure there is at least one peer left to connect! */
4847 /* Choose a random peer from the chosen peers set of connections to add */
4849 GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK,
4850 GNUNET_CONTAINER_multihashmap_size (pg->peers
4851 [starting_peer].connect_peers));
4852 dfs_ctx.first_uid = starting_peer;
4853 dfs_ctx.first = &pg->peers[starting_peer];
4855 dfs_ctx.current = 0;
4857 GNUNET_CONTAINER_multihashmap_iterate (pg->
4858 peers[starting_peer].connect_peers,
4859 &dfs_connect_iterator, &dfs_ctx);
4860 /* Remove the second from the first, since we will be continuing the search and may encounter the first peer again! */
4861 hash_from_uid (dfs_ctx.second_uid, &second_hash);
4862 GNUNET_assert (GNUNET_YES ==
4863 GNUNET_CONTAINER_multihashmap_remove (pg->peers
4864 [starting_peer].connect_peers,
4868 [dfs_ctx.second_uid].daemon));
4869 starting_peer = dfs_ctx.second_uid;
4872 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
4874 /* Remove the "old" connections */
4875 GNUNET_CONTAINER_multihashmap_destroy (pg->peers[pg_iter].connect_peers);
4876 /* And replace with the working set */
4877 pg->peers[pg_iter].connect_peers =
4878 pg->peers[pg_iter].connect_peers_working_set;
4884 * Internal callback for topology information for a particular peer.
4887 internal_topology_callback (void *cls, const struct GNUNET_PeerIdentity *peer,
4888 const struct GNUNET_ATS_Information *atsi,
4889 unsigned int atsi_count)
4891 struct CoreContext *core_ctx = cls;
4892 struct TopologyIterateContext *iter_ctx = core_ctx->iter_context;
4894 if (peer == NULL) /* Either finished, or something went wrong */
4896 iter_ctx->completed++;
4897 iter_ctx->connected--;
4898 /* One core context allocated per iteration, must free! */
4899 GNUNET_free (core_ctx);
4903 iter_ctx->topology_cb (iter_ctx->cls, &core_ctx->daemon->id, peer, NULL);
4906 if (iter_ctx->completed == iter_ctx->total)
4908 iter_ctx->topology_cb (iter_ctx->cls, NULL, NULL, NULL);
4909 /* Once all are done, free the iteration context */
4910 GNUNET_free (iter_ctx);
4915 * Check running topology iteration tasks, if below max start a new one, otherwise
4916 * schedule for some time in the future.
4919 schedule_get_topology (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
4921 struct CoreContext *core_context = cls;
4922 struct TopologyIterateContext *topology_context =
4923 (struct TopologyIterateContext *) core_context->iter_context;
4924 if ((tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN) != 0)
4927 if (topology_context->connected >
4928 topology_context->pg->max_outstanding_connections)
4930 #if VERBOSE_TESTING > 2
4931 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
4933 ("Delaying connect, we have too many outstanding connections!\n"));
4935 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply
4936 (GNUNET_TIME_UNIT_MILLISECONDS, 100),
4937 &schedule_get_topology, core_context);
4941 #if VERBOSE_TESTING > 2
4942 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
4943 _("Creating connection, outstanding_connections is %d\n"),
4944 outstanding_connects);
4946 topology_context->connected++;
4949 GNUNET_CORE_iterate_peers (core_context->daemon->cfg,
4950 &internal_topology_callback, core_context))
4952 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Topology iteration failed.\n");
4953 internal_topology_callback (core_context, NULL, NULL, 0);
4959 * Iterate over all (running) peers in the peer group, retrieve
4960 * all connections that each currently has.
4963 GNUNET_TESTING_get_topology (struct GNUNET_TESTING_PeerGroup *pg,
4964 GNUNET_TESTING_NotifyTopology cb, void *cls)
4966 struct TopologyIterateContext *topology_context;
4967 struct CoreContext *core_ctx;
4969 unsigned int total_count;
4971 /* Allocate a single topology iteration context */
4972 topology_context = GNUNET_malloc (sizeof (struct TopologyIterateContext));
4973 topology_context->topology_cb = cb;
4974 topology_context->cls = cls;
4975 topology_context->pg = pg;
4977 for (i = 0; i < pg->total; i++)
4979 if (pg->peers[i].daemon->running == GNUNET_YES)
4981 /* Allocate one core context per core we need to connect to */
4982 core_ctx = GNUNET_malloc (sizeof (struct CoreContext));
4983 core_ctx->daemon = pg->peers[i].daemon;
4984 /* Set back pointer to topology iteration context */
4985 core_ctx->iter_context = topology_context;
4986 GNUNET_SCHEDULER_add_now (&schedule_get_topology, core_ctx);
4990 if (total_count == 0)
4992 cb (cls, NULL, NULL, "Cannot iterate over topology, no running peers!");
4993 GNUNET_free (topology_context);
4996 topology_context->total = total_count;
5001 * Callback function to process statistic values.
5002 * This handler is here only really to insert a peer
5003 * identity (or daemon) so the statistics can be uniquely
5004 * tied to a single running peer.
5006 * @param cls closure
5007 * @param subsystem name of subsystem that created the statistic
5008 * @param name the name of the datum
5009 * @param value the current value
5010 * @param is_persistent GNUNET_YES if the value is persistent, GNUNET_NO if not
5011 * @return GNUNET_OK to continue, GNUNET_SYSERR to abort iteration
5014 internal_stats_callback (void *cls, const char *subsystem, const char *name,
5015 uint64_t value, int is_persistent)
5017 struct StatsCoreContext *core_context = cls;
5018 struct StatsIterateContext *stats_context =
5019 (struct StatsIterateContext *) core_context->iter_context;
5021 return stats_context->proc (stats_context->cls, &core_context->daemon->id,
5022 subsystem, name, value, is_persistent);
5026 * Internal continuation call for statistics iteration.
5028 * @param cls closure, the CoreContext for this iteration
5029 * @param success whether or not the statistics iterations
5030 * was canceled or not (we don't care)
5033 internal_stats_cont (void *cls, int success)
5035 struct StatsCoreContext *core_context = cls;
5036 struct StatsIterateContext *stats_context =
5037 (struct StatsIterateContext *) core_context->iter_context;
5039 stats_context->connected--;
5040 stats_context->completed++;
5042 if (stats_context->completed == stats_context->total)
5044 stats_context->cont (stats_context->cls, GNUNET_YES);
5045 GNUNET_free (stats_context);
5048 if (core_context->stats_handle != NULL)
5049 GNUNET_STATISTICS_destroy (core_context->stats_handle, GNUNET_NO);
5051 GNUNET_free (core_context);
5055 * Check running topology iteration tasks, if below max start a new one, otherwise
5056 * schedule for some time in the future.
5059 schedule_get_statistics (void *cls,
5060 const struct GNUNET_SCHEDULER_TaskContext *tc)
5062 struct StatsCoreContext *core_context = cls;
5063 struct StatsIterateContext *stats_context =
5064 (struct StatsIterateContext *) core_context->iter_context;
5066 if ((tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN) != 0)
5069 if (stats_context->connected > stats_context->pg->max_outstanding_connections)
5071 #if VERBOSE_TESTING > 2
5072 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
5074 ("Delaying connect, we have too many outstanding connections!\n"));
5076 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply
5077 (GNUNET_TIME_UNIT_MILLISECONDS, 100),
5078 &schedule_get_statistics, core_context);
5082 #if VERBOSE_TESTING > 2
5083 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
5084 _("Creating connection, outstanding_connections is %d\n"),
5085 outstanding_connects);
5088 stats_context->connected++;
5089 core_context->stats_handle =
5090 GNUNET_STATISTICS_create ("testing", core_context->daemon->cfg);
5091 if (core_context->stats_handle == NULL)
5093 internal_stats_cont (core_context, GNUNET_NO);
5097 core_context->stats_get_handle =
5098 GNUNET_STATISTICS_get (core_context->stats_handle, NULL, NULL,
5099 GNUNET_TIME_relative_get_forever (),
5100 &internal_stats_cont, &internal_stats_callback,
5102 if (core_context->stats_get_handle == NULL)
5103 internal_stats_cont (core_context, GNUNET_NO);
5108 struct DuplicateStats
5111 * Next item in the list
5113 struct DuplicateStats *next;
5116 * Nasty string, concatenation of relevant information.
5118 char *unique_string;
5122 * Check whether the combination of port/host/unix domain socket
5123 * already exists in the list of peers being checked for statistics.
5125 * @param pg the peergroup in question
5126 * @param specific_peer the peer we're concerned with
5127 * @param stats_list the list to return to the caller
5129 * @return GNUNET_YES if the statistics instance has been seen already,
5130 * GNUNET_NO if not (and we may have added it to the list)
5133 stats_check_existing (struct GNUNET_TESTING_PeerGroup *pg,
5134 struct PeerData *specific_peer,
5135 struct DuplicateStats **stats_list)
5137 struct DuplicateStats *pos;
5138 char *unix_domain_socket;
5139 unsigned long long port;
5143 GNUNET_CONFIGURATION_get_value_yesno (pg->cfg, "testing",
5144 "single_statistics_per_host"))
5145 return GNUNET_NO; /* Each peer has its own statistics instance, do nothing! */
5149 GNUNET_CONFIGURATION_get_value_string (specific_peer->cfg, "statistics",
5150 "unixpath", &unix_domain_socket))
5154 GNUNET_CONFIGURATION_get_value_number (specific_peer->cfg, "statistics",
5157 GNUNET_free (unix_domain_socket);
5161 if (specific_peer->daemon->hostname != NULL)
5162 GNUNET_asprintf (&to_match, "%s%s%llu", specific_peer->daemon->hostname,
5163 unix_domain_socket, port);
5165 GNUNET_asprintf (&to_match, "%s%llu", unix_domain_socket, port);
5169 if (0 == strcmp (to_match, pos->unique_string))
5171 GNUNET_free (unix_domain_socket);
5172 GNUNET_free (to_match);
5177 pos = GNUNET_malloc (sizeof (struct DuplicateStats));
5178 pos->unique_string = to_match;
5179 pos->next = *stats_list;
5181 GNUNET_free (unix_domain_socket);
5186 * Iterate over all (running) peers in the peer group, retrieve
5187 * all statistics from each.
5189 * @param pg the peergroup to iterate statistics of
5190 * @param cont continuation to call once all stats have been retrieved
5191 * @param proc processing function for each statistic from each peer
5192 * @param cls closure to pass to proc
5196 GNUNET_TESTING_get_statistics (struct GNUNET_TESTING_PeerGroup *pg,
5197 GNUNET_STATISTICS_Callback cont,
5198 GNUNET_TESTING_STATISTICS_Iterator proc,
5201 struct StatsIterateContext *stats_context;
5202 struct StatsCoreContext *core_ctx;
5204 unsigned int total_count;
5205 struct DuplicateStats *stats_list;
5206 struct DuplicateStats *pos;
5210 /* Allocate a single stats iteration context */
5211 stats_context = GNUNET_malloc (sizeof (struct StatsIterateContext));
5212 stats_context->cont = cont;
5213 stats_context->proc = proc;
5214 stats_context->cls = cls;
5215 stats_context->pg = pg;
5218 for (i = 0; i < pg->total; i++)
5220 if ((pg->peers[i].daemon->running == GNUNET_YES) &&
5221 (GNUNET_NO == stats_check_existing (pg, &pg->peers[i], &stats_list)))
5223 /* Allocate one core context per core we need to connect to */
5224 core_ctx = GNUNET_malloc (sizeof (struct StatsCoreContext));
5225 core_ctx->daemon = pg->peers[i].daemon;
5226 /* Set back pointer to topology iteration context */
5227 core_ctx->iter_context = stats_context;
5228 GNUNET_SCHEDULER_add_now (&schedule_get_statistics, core_ctx);
5233 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
5234 "Retrieving stats from %u total instances.\n", total_count);
5235 stats_context->total = total_count;
5236 if (stats_list != NULL)
5241 GNUNET_free (pos->unique_string);
5242 stats_list = pos->next;
5244 pos = stats_list->next;
5251 * Stop the connection process temporarily.
5253 * @param pg the peer group to stop connecting
5256 GNUNET_TESTING_stop_connections (struct GNUNET_TESTING_PeerGroup *pg)
5258 pg->stop_connects = GNUNET_YES;
5262 * Resume the connection process temporarily.
5264 * @param pg the peer group to resume connecting
5267 GNUNET_TESTING_resume_connections (struct GNUNET_TESTING_PeerGroup *pg)
5269 pg->stop_connects = GNUNET_NO;
5273 * There are many ways to connect peers that are supported by this function.
5274 * To connect peers in the same topology that was created via the
5275 * GNUNET_TESTING_create_topology, the topology variable must be set to
5276 * GNUNET_TESTING_TOPOLOGY_NONE. If the topology variable is specified,
5277 * a new instance of that topology will be generated and attempted to be
5278 * connected. This could result in some connections being impossible,
5279 * because some topologies are non-deterministic.
5281 * @param pg the peer group struct representing the running peers
5282 * @param topology which topology to connect the peers in
5283 * @param options options for connecting the topology
5284 * @param option_modifier modifier for options that take a parameter
5285 * @param connect_timeout how long to wait before giving up on connecting
5287 * @param connect_attempts how many times to attempt to connect two peers
5288 * over the connect_timeout duration
5289 * @param notify_callback notification to be called once all connections completed
5290 * @param notify_cls closure for notification callback
5292 * @return the number of connections that will be attempted, GNUNET_SYSERR on error
5295 GNUNET_TESTING_connect_topology (struct GNUNET_TESTING_PeerGroup *pg,
5296 enum GNUNET_TESTING_Topology topology,
5297 enum GNUNET_TESTING_TopologyOption options,
5298 double option_modifier,
5299 struct GNUNET_TIME_Relative connect_timeout,
5300 unsigned int connect_attempts,
5301 GNUNET_TESTING_NotifyCompletion
5302 notify_callback, void *notify_cls)
5306 case GNUNET_TESTING_TOPOLOGY_CLIQUE:
5307 #if VERBOSE_TOPOLOGY
5308 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
5309 _("Creating clique CONNECT topology\n"));
5311 create_clique (pg, &add_connections, CONNECT, GNUNET_NO);
5313 case GNUNET_TESTING_TOPOLOGY_SMALL_WORLD_RING:
5314 #if VERBOSE_TOPOLOGY
5315 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
5316 _("Creating small world (ring) CONNECT topology\n"));
5318 create_small_world_ring (pg, &add_connections, CONNECT);
5320 case GNUNET_TESTING_TOPOLOGY_SMALL_WORLD:
5321 #if VERBOSE_TOPOLOGY
5322 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
5323 _("Creating small world (2d-torus) CONNECT topology\n"));
5325 create_small_world (pg, &add_connections, CONNECT);
5327 case GNUNET_TESTING_TOPOLOGY_RING:
5328 #if VERBOSE_TOPOLOGY
5329 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, _("Creating ring CONNECT topology\n"));
5331 create_ring (pg, &add_connections, CONNECT);
5333 case GNUNET_TESTING_TOPOLOGY_2D_TORUS:
5334 #if VERBOSE_TOPOLOGY
5335 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
5336 _("Creating 2d torus CONNECT topology\n"));
5338 create_2d_torus (pg, &add_connections, CONNECT);
5340 case GNUNET_TESTING_TOPOLOGY_ERDOS_RENYI:
5341 #if VERBOSE_TOPOLOGY
5342 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
5343 _("Creating Erdos-Renyi CONNECT topology\n"));
5345 create_erdos_renyi (pg, &add_connections, CONNECT);
5347 case GNUNET_TESTING_TOPOLOGY_INTERNAT:
5348 #if VERBOSE_TOPOLOGY
5349 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
5350 _("Creating InterNAT CONNECT topology\n"));
5352 create_nated_internet (pg, &add_connections, CONNECT);
5354 case GNUNET_TESTING_TOPOLOGY_SCALE_FREE:
5355 #if VERBOSE_TOPOLOGY
5356 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
5357 _("Creating Scale Free CONNECT topology\n"));
5359 create_scale_free (pg, &add_connections, CONNECT);
5361 case GNUNET_TESTING_TOPOLOGY_LINE:
5362 #if VERBOSE_TOPOLOGY
5363 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
5364 _("Creating straight line CONNECT topology\n"));
5366 create_line (pg, &add_connections, CONNECT);
5368 case GNUNET_TESTING_TOPOLOGY_NONE:
5369 #if VERBOSE_TOPOLOGY
5370 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, _("Creating no CONNECT topology\n"));
5372 copy_allowed_topology (pg);
5375 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
5376 _("Unknown topology specification, can't connect peers!\n"));
5377 return GNUNET_SYSERR;
5382 case GNUNET_TESTING_TOPOLOGY_OPTION_RANDOM:
5383 #if VERBOSE_TOPOLOGY
5384 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
5386 ("Connecting random subset (%'.2f percent) of possible peers\n"),
5387 100 * option_modifier);
5389 choose_random_connections (pg, option_modifier);
5391 case GNUNET_TESTING_TOPOLOGY_OPTION_MINIMUM:
5392 #if VERBOSE_TOPOLOGY
5393 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
5394 _("Connecting a minimum of %u peers each (if possible)\n"),
5395 (unsigned int) option_modifier);
5397 choose_minimum (pg, (unsigned int) option_modifier);
5399 case GNUNET_TESTING_TOPOLOGY_OPTION_DFS:
5400 #if VERBOSE_TOPOLOGY
5401 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
5403 ("Using DFS to connect a minimum of %u peers each (if possible)\n"),
5404 (unsigned int) option_modifier);
5407 perform_dfs (pg, (int) option_modifier);
5410 case GNUNET_TESTING_TOPOLOGY_OPTION_ADD_CLOSEST:
5411 #if VERBOSE_TOPOLOGY
5412 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
5413 _("Finding additional %u closest peers each (if possible)\n"),
5414 (unsigned int) option_modifier);
5417 add_closest (pg, (unsigned int) option_modifier, &add_connections, CONNECT);
5420 case GNUNET_TESTING_TOPOLOGY_OPTION_NONE:
5422 case GNUNET_TESTING_TOPOLOGY_OPTION_ALL:
5428 return connect_topology (pg, connect_timeout, connect_attempts,
5429 notify_callback, notify_cls);
5433 * Lookup and return the number of SSH connections to a host.
5435 * @param hostname the hostname to lookup in the list
5436 * @param pg the peergroup that the host belongs to
5438 * @return the number of current ssh connections to the host
5441 count_outstanding_at_host (const char *hostname,
5442 struct GNUNET_TESTING_PeerGroup *pg)
5444 struct OutstandingSSH *pos;
5447 while ((pos != NULL) && (strcmp (pos->hostname, hostname) != 0))
5449 GNUNET_assert (pos != NULL);
5450 return pos->outstanding;
5454 * Increment the number of SSH connections to a host by one.
5456 * @param hostname the hostname to lookup in the list
5457 * @param pg the peergroup that the host belongs to
5461 increment_outstanding_at_host (const char *hostname,
5462 struct GNUNET_TESTING_PeerGroup *pg)
5464 struct OutstandingSSH *pos;
5467 while ((pos != NULL) && (strcmp (pos->hostname, hostname) != 0))
5469 GNUNET_assert (pos != NULL);
5474 * Decrement the number of SSH connections to a host by one.
5476 * @param hostname the hostname to lookup in the list
5477 * @param pg the peergroup that the host belongs to
5481 decrement_outstanding_at_host (const char *hostname,
5482 struct GNUNET_TESTING_PeerGroup *pg)
5484 struct OutstandingSSH *pos;
5487 while ((pos != NULL) && (strcmp (pos->hostname, hostname) != 0))
5489 GNUNET_assert (pos != NULL);
5494 * Callback that is called whenever a hostkey is generated
5495 * for a peer. Call the real callback and decrement the
5496 * starting counter for the peergroup.
5498 * @param cls closure
5499 * @param id identifier for the daemon, NULL on error
5500 * @param d handle for the daemon
5501 * @param emsg error message (NULL on success)
5504 internal_hostkey_callback (void *cls, const struct GNUNET_PeerIdentity *id,
5505 struct GNUNET_TESTING_Daemon *d, const char *emsg)
5507 struct InternalStartContext *internal_context = cls;
5509 internal_context->peer->pg->starting--;
5510 internal_context->peer->pg->started++;
5511 if (internal_context->hostname != NULL)
5512 decrement_outstanding_at_host (internal_context->hostname,
5513 internal_context->peer->pg);
5514 if (internal_context->hostkey_callback != NULL)
5515 internal_context->hostkey_callback (internal_context->hostkey_cls, id, d,
5517 else if (internal_context->peer->pg->started ==
5518 internal_context->peer->pg->total)
5520 internal_context->peer->pg->started = 0; /* Internal startup may use this counter! */
5521 GNUNET_TESTING_daemons_continue_startup (internal_context->peer->pg);
5526 * Callback that is called whenever a peer has finished starting.
5527 * Call the real callback and decrement the starting counter
5528 * for the peergroup.
5530 * @param cls closure
5531 * @param id identifier for the daemon, NULL on error
5533 * @param d handle for the daemon
5534 * @param emsg error message (NULL on success)
5537 internal_startup_callback (void *cls, const struct GNUNET_PeerIdentity *id,
5538 const struct GNUNET_CONFIGURATION_Handle *cfg,
5539 struct GNUNET_TESTING_Daemon *d, const char *emsg)
5541 struct InternalStartContext *internal_context = cls;
5543 internal_context->peer->pg->starting--;
5544 if (internal_context->hostname != NULL)
5545 decrement_outstanding_at_host (internal_context->hostname,
5546 internal_context->peer->pg);
5547 if (internal_context->start_cb != NULL)
5548 internal_context->start_cb (internal_context->start_cb_cls, id, cfg, d,
5554 * Calls GNUNET_TESTING_daemon_continue_startup to set the daemon's state
5555 * from HOSTKEY_CREATED to TOPOLOGY_SETUP. Makes sure not to saturate a host
5556 * with requests delaying them when needed.
5558 * @param cls closure: internal context of the daemon.
5559 * @param tc TaskContext
5562 internal_continue_startup (void *cls,
5563 const struct GNUNET_SCHEDULER_TaskContext *tc)
5565 struct InternalStartContext *internal_context = cls;
5567 internal_context->peer->startup_task = GNUNET_SCHEDULER_NO_TASK;
5569 if ((tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN) != 0)
5574 if ((internal_context->peer->pg->starting <
5575 internal_context->peer->pg->max_concurrent_ssh) ||
5576 ((internal_context->hostname != NULL) &&
5577 (count_outstanding_at_host
5578 (internal_context->hostname,
5579 internal_context->peer->pg) <
5580 internal_context->peer->pg->max_concurrent_ssh)))
5582 if (internal_context->hostname != NULL)
5583 increment_outstanding_at_host (internal_context->hostname,
5584 internal_context->peer->pg);
5585 internal_context->peer->pg->starting++;
5586 GNUNET_TESTING_daemon_continue_startup (internal_context->peer->daemon);
5590 internal_context->peer->startup_task =
5591 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply
5592 (GNUNET_TIME_UNIT_MILLISECONDS, 100),
5593 &internal_continue_startup,
5599 * Callback for informing us about a successful
5600 * or unsuccessful churn start call.
5602 * @param cls a ChurnContext
5603 * @param id the peer identity of the started peer
5604 * @param cfg the handle to the configuration of the peer
5605 * @param d handle to the daemon for the peer
5606 * @param emsg NULL on success, non-NULL on failure
5610 churn_start_callback (void *cls, const struct GNUNET_PeerIdentity *id,
5611 const struct GNUNET_CONFIGURATION_Handle *cfg,
5612 struct GNUNET_TESTING_Daemon *d, const char *emsg)
5614 struct ChurnRestartContext *startup_ctx = cls;
5615 struct ChurnContext *churn_ctx = startup_ctx->churn_ctx;
5617 unsigned int total_left;
5618 char *error_message;
5620 error_message = NULL;
5623 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
5624 "Churn stop callback failed with error `%s'\n", emsg);
5625 churn_ctx->num_failed_start++;
5629 churn_ctx->num_to_start--;
5633 (churn_ctx->num_to_stop - churn_ctx->num_failed_stop) +
5634 (churn_ctx->num_to_start - churn_ctx->num_failed_start);
5636 if (total_left == 0)
5638 if ((churn_ctx->num_failed_stop > 0) || (churn_ctx->num_failed_start > 0))
5639 GNUNET_asprintf (&error_message,
5640 "Churn didn't complete successfully, %u peers failed to start %u peers failed to be stopped!",
5641 churn_ctx->num_failed_start, churn_ctx->num_failed_stop);
5642 churn_ctx->cb (churn_ctx->cb_cls, error_message);
5643 GNUNET_free_non_null (error_message);
5644 GNUNET_free (churn_ctx);
5645 GNUNET_free (startup_ctx);
5650 schedule_churn_restart (void *cls,
5651 const struct GNUNET_SCHEDULER_TaskContext *tc)
5653 struct PeerRestartContext *peer_restart_ctx = cls;
5654 struct ChurnRestartContext *startup_ctx = peer_restart_ctx->churn_restart_ctx;
5656 if (startup_ctx->outstanding > startup_ctx->pg->max_concurrent_ssh)
5657 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply
5658 (GNUNET_TIME_UNIT_MILLISECONDS, 100),
5659 &schedule_churn_restart, peer_restart_ctx);
5662 if (startup_ctx->churn_ctx->service != NULL)
5663 GNUNET_TESTING_daemon_start_stopped_service (peer_restart_ctx->daemon,
5666 startup_ctx->timeout,
5667 &churn_start_callback,
5670 GNUNET_TESTING_daemon_start_stopped (peer_restart_ctx->daemon,
5671 startup_ctx->timeout,
5672 &churn_start_callback, startup_ctx);
5673 GNUNET_free (peer_restart_ctx);
5678 * Callback for informing us about a successful
5679 * or unsuccessful churn start call.
5681 * @param cls a struct ServiceStartContext *startup_ctx
5682 * @param id the peer identity of the started peer
5683 * @param cfg the handle to the configuration of the peer
5684 * @param d handle to the daemon for the peer
5685 * @param emsg NULL on success, non-NULL on failure
5689 service_start_callback (void *cls, const struct GNUNET_PeerIdentity *id,
5690 const struct GNUNET_CONFIGURATION_Handle *cfg,
5691 struct GNUNET_TESTING_Daemon *d, const char *emsg)
5693 struct ServiceStartContext *startup_ctx = (struct ServiceStartContext *) cls;
5697 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
5698 "Service start failed with error `%s'\n", emsg);
5701 startup_ctx->outstanding--;
5702 startup_ctx->remaining--;
5704 if (startup_ctx->remaining == 0)
5706 startup_ctx->cb (startup_ctx->cb_cls, NULL);
5707 GNUNET_free (startup_ctx->service);
5708 GNUNET_free (startup_ctx);
5713 schedule_service_start (void *cls,
5714 const struct GNUNET_SCHEDULER_TaskContext *tc)
5716 struct PeerServiceStartContext *peer_ctx = cls;
5717 struct ServiceStartContext *startup_ctx = peer_ctx->start_ctx;
5719 if (startup_ctx->outstanding > startup_ctx->pg->max_concurrent_ssh)
5720 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply
5721 (GNUNET_TIME_UNIT_MILLISECONDS, 100),
5722 &schedule_service_start, peer_ctx);
5726 GNUNET_TESTING_daemon_start_service (peer_ctx->daemon, startup_ctx->service,
5727 startup_ctx->timeout,
5728 &service_start_callback, startup_ctx);
5729 GNUNET_free (peer_ctx);
5735 internal_start (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
5737 struct InternalStartContext *internal_context = cls;
5739 if ((tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN) != 0)
5744 if ((internal_context->peer->pg->starting <
5745 internal_context->peer->pg->max_concurrent_ssh) ||
5746 ((internal_context->hostname != NULL) &&
5747 (count_outstanding_at_host
5748 (internal_context->hostname,
5749 internal_context->peer->pg) <
5750 internal_context->peer->pg->max_concurrent_ssh)))
5752 if (internal_context->hostname != NULL)
5753 increment_outstanding_at_host (internal_context->hostname,
5754 internal_context->peer->pg);
5755 internal_context->peer->pg->starting++;
5756 internal_context->peer->daemon =
5757 GNUNET_TESTING_daemon_start (internal_context->peer->cfg,
5758 internal_context->timeout, GNUNET_NO,
5759 internal_context->hostname,
5760 internal_context->username,
5761 internal_context->sshport,
5762 internal_context->hostkey,
5763 &internal_hostkey_callback,
5765 &internal_startup_callback,
5770 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply
5771 (GNUNET_TIME_UNIT_MILLISECONDS, 100),
5772 &internal_start, internal_context);
5776 #if USE_START_HELPER
5778 struct PeerStartHelperContext
5780 struct GNUNET_TESTING_PeerGroup *pg;
5782 struct HostData *host;
5784 struct GNUNET_OS_Process *proc;
5788 check_peers_started (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
5790 struct PeerStartHelperContext *helper = cls;
5791 enum GNUNET_OS_ProcessStatusType type;
5794 GNUNET_TESTING_NotifyDaemonRunning cb;
5796 if (GNUNET_NO == GNUNET_OS_process_status (helper->proc, &type, &code)) /* Still running, wait some more! */
5798 GNUNET_SCHEDULER_add_delayed (GNUNET_CONSTANTS_EXEC_WAIT,
5799 &check_peers_started, helper);
5803 helper->pg->starting--;
5804 if (helper->pg->starting == 0) /* All peers have finished starting! */
5806 /* Call the peer started callback for each peer, set proper FSM state (?) */
5807 for (i = 0; i < helper->pg->total; i++)
5809 cb = helper->pg->peers[i].daemon->cb;
5810 helper->pg->peers[i].daemon->cb = NULL;
5811 helper->pg->peers[i].daemon->running = GNUNET_YES;
5812 helper->pg->peers[i].daemon->phase = SP_START_DONE;
5815 if ((type != GNUNET_OS_PROCESS_EXITED) || (code != 0))
5816 cb (helper->pg->peers[i].daemon->cb_cls,
5817 &helper->pg->peers[i].daemon->id,
5818 helper->pg->peers[i].daemon->cfg, helper->pg->peers[i].daemon,
5819 "Failed to execute peerStartHelper.pl, or return code bad!");
5821 cb (helper->pg->peers[i].daemon->cb_cls,
5822 &helper->pg->peers[i].daemon->id,
5823 helper->pg->peers[i].daemon->cfg, helper->pg->peers[i].daemon,
5830 GNUNET_OS_process_close (helper->proc);
5834 start_peer_helper (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
5836 struct PeerStartHelperContext *helper = cls;
5837 char *baseservicehome;
5841 /* ssh user@host peerStartHelper /path/to/basedirectory */
5842 GNUNET_assert (GNUNET_OK ==
5843 GNUNET_CONFIGURATION_get_value_string (helper->pg->cfg,
5844 "PATHS", "SERVICEHOME",
5846 GNUNET_asprintf (&tempdir, "%s/%s/", baseservicehome, helper->host->hostname);
5847 if (NULL != helper->host->username)
5848 GNUNET_asprintf (&arg, "%s@%s", helper->host->username,
5849 helper->host->hostname);
5851 GNUNET_asprintf (&arg, "%s", helper->host->hostname);
5853 /* FIXME: Doesn't support ssh_port option! */
5855 GNUNET_OS_start_process (NULL, NULL, "ssh", "ssh", arg,
5856 "peerStartHelper.pl", tempdir, NULL);
5857 GNUNET_assert (helper->proc != NULL);
5859 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "starting peers with cmd ssh %s %s %s\n",
5860 arg, "peerStartHelper.pl", tempdir);
5862 GNUNET_SCHEDULER_add_now (&check_peers_started, helper);
5863 GNUNET_free (tempdir);
5864 GNUNET_free (baseservicehome);
5870 * Function which continues a peer group starting up
5871 * after successfully generating hostkeys for each peer.
5873 * @param pg the peer group to continue starting
5877 GNUNET_TESTING_daemons_continue_startup (struct GNUNET_TESTING_PeerGroup *pg)
5881 #if USE_START_HELPER
5882 if ((pg->num_hosts > 0) && (pg->hostkey_data != NULL))
5884 struct PeerStartHelperContext *helper;
5886 pg->starting = pg->num_hosts;
5887 for (i = 0; i < pg->num_hosts; i++)
5889 helper = GNUNET_malloc (sizeof (struct PeerStartHelperContext));
5891 helper->host = &pg->hosts[i];
5892 GNUNET_SCHEDULER_add_now (&start_peer_helper, helper);
5898 for (i = 0; i < pg->total; i++)
5900 pg->peers[i].startup_task =
5901 GNUNET_SCHEDULER_add_now (&internal_continue_startup,
5902 &pg->peers[i].internal_context);
5907 for (i = 0; i < pg->total; i++)
5909 pg->peers[i].startup_task =
5910 GNUNET_SCHEDULER_add_now (&internal_continue_startup,
5911 &pg->peers[i].internal_context);
5916 #if USE_START_HELPER
5918 call_hostkey_callbacks (void *cls,
5919 const struct GNUNET_SCHEDULER_TaskContext *tc)
5921 struct GNUNET_TESTING_PeerGroup *pg = cls;
5924 for (i = 0; i < pg->total; i++)
5926 if (pg->peers[i].internal_context.hostkey_callback != NULL)
5927 pg->peers[i].internal_context.hostkey_callback (pg->peers[i].
5928 internal_context.hostkey_cls,
5929 &pg->peers[i].daemon->id,
5930 pg->peers[i].daemon,
5934 if (pg->peers[0].internal_context.hostkey_callback == NULL)
5935 GNUNET_TESTING_daemons_continue_startup (pg);
5940 * Start count gnunet instances with the same set of transports and
5941 * applications. The port numbers (any option called "PORT") will be
5942 * adjusted to ensure that no two peers running on the same system
5943 * have the same port(s) in their respective configurations.
5945 * @param cfg configuration template to use
5946 * @param total number of daemons to start
5947 * @param max_concurrent_connections for testing, how many peers can
5948 * we connect to simultaneously
5949 * @param max_concurrent_ssh when starting with ssh, how many ssh
5950 * connections will we allow at once (based on remote hosts allowed!)
5951 * @param timeout total time allowed for peers to start
5952 * @param hostkey_callback function to call on each peers hostkey generation
5953 * if NULL, peers will be started by this call, if non-null,
5954 * GNUNET_TESTING_daemons_continue_startup must be called after
5955 * successful hostkey generation
5956 * @param hostkey_cls closure for hostkey callback
5957 * @param cb function to call on each daemon that was started
5958 * @param cb_cls closure for cb
5959 * @param connect_callback function to call each time two hosts are connected
5960 * @param connect_callback_cls closure for connect_callback
5961 * @param hostnames linked list of host structs to use to start peers on
5962 * (NULL to run on localhost only)
5964 * @return NULL on error, otherwise handle to control peer group
5966 struct GNUNET_TESTING_PeerGroup *
5967 GNUNET_TESTING_daemons_start (const struct GNUNET_CONFIGURATION_Handle *cfg,
5969 unsigned int max_concurrent_connections,
5970 unsigned int max_concurrent_ssh,
5971 struct GNUNET_TIME_Relative timeout,
5972 GNUNET_TESTING_NotifyHostkeyCreated
5973 hostkey_callback, void *hostkey_cls,
5974 GNUNET_TESTING_NotifyDaemonRunning cb,
5976 GNUNET_TESTING_NotifyConnection connect_callback,
5977 void *connect_callback_cls,
5978 const struct GNUNET_TESTING_Host *hostnames)
5980 struct GNUNET_TESTING_PeerGroup *pg;
5981 const struct GNUNET_TESTING_Host *hostpos;
5982 const char *hostname;
5983 const char *username;
5984 char *baseservicehome;
5985 char *newservicehome;
5987 char *hostkeys_file;
5990 struct GNUNET_DISK_FileHandle *fd;
5991 struct GNUNET_CONFIGURATION_Handle *pcfg;
5993 struct OutstandingSSH *ssh_entry;
5994 unsigned int hostcnt;
6001 uint64_t total_hostkeys;
6002 struct GNUNET_OS_Process *proc;
6013 pg = GNUNET_malloc (sizeof (struct GNUNET_TESTING_PeerGroup));
6015 pg->notify_connection = connect_callback;
6016 pg->notify_connection_cls = connect_callback_cls;
6018 pg->max_timeout = GNUNET_TIME_relative_to_absolute (timeout);
6019 pg->peers = GNUNET_malloc (total * sizeof (struct PeerData));
6020 pg->max_outstanding_connections = max_concurrent_connections;
6021 pg->max_concurrent_ssh = max_concurrent_ssh;
6022 if (NULL != hostnames)
6025 hostpos = hostnames;
6026 while (hostpos != NULL)
6028 hostpos = hostpos->next;
6031 pg->hosts = GNUNET_malloc (off * sizeof (struct HostData));
6034 hostpos = hostnames;
6035 while (hostpos != NULL)
6037 pg->hosts[off].minport = LOW_PORT;
6038 pg->hosts[off].hostname = GNUNET_strdup (hostpos->hostname);
6039 if (hostpos->username != NULL)
6040 pg->hosts[off].username = GNUNET_strdup (hostpos->username);
6041 pg->hosts[off].sshport = hostpos->port;
6042 hostpos = hostpos->next;
6052 pg->num_hosts = off;
6060 /* Create the servicehome directory for each remote peer */
6061 GNUNET_assert (GNUNET_OK ==
6062 GNUNET_CONFIGURATION_get_value_string (cfg, "PATHS",
6065 for (i = 0; i < pg->num_hosts; i++)
6067 ssh_entry = GNUNET_malloc (sizeof (struct OutstandingSSH));
6068 ssh_entry->hostname = pg->hosts[i].hostname; /* Don't free! */
6069 GNUNET_CONTAINER_DLL_insert (pg->ssh_head, pg->ssh_tail, ssh_entry);
6070 GNUNET_asprintf (&tmpdir, "%s/%s", baseservicehome, pg->hosts[i].hostname);
6071 if (NULL != pg->hosts[i].username)
6072 GNUNET_asprintf (&arg, "%s@%s", pg->hosts[i].username,
6073 pg->hosts[i].hostname);
6075 GNUNET_asprintf (&arg, "%s", pg->hosts[i].hostname);
6076 if (pg->hosts[i].sshport != 0)
6078 GNUNET_asprintf (&ssh_port_str, "%d", pg->hosts[i].sshport);
6080 GNUNET_OS_start_process (NULL, NULL, "ssh", "ssh", "-P", ssh_port_str,
6084 arg, "mkdir -p", tmpdir, NULL);
6088 GNUNET_OS_start_process (NULL, NULL, "ssh", "ssh", arg, "mkdir -p",
6090 GNUNET_assert (proc != NULL);
6091 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
6092 "Creating remote dir with command ssh %s %s %s\n", arg,
6093 " mkdir -p ", tmpdir);
6094 GNUNET_free (tmpdir);
6096 GNUNET_OS_process_wait (proc);
6097 GNUNET_OS_process_close (proc);
6099 GNUNET_free (baseservicehome);
6100 baseservicehome = NULL;
6103 GNUNET_CONFIGURATION_get_value_string (cfg, "TESTING", "HOSTKEYSFILE",
6106 if (GNUNET_YES != GNUNET_DISK_file_test (hostkeys_file))
6107 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
6108 _("Could not read hostkeys file!\n"));
6111 /* Check hostkey file size, read entire thing into memory */
6112 fd = GNUNET_DISK_file_open (hostkeys_file, GNUNET_DISK_OPEN_READ,
6113 GNUNET_DISK_PERM_NONE);
6116 GNUNET_log_strerror_file (GNUNET_ERROR_TYPE_ERROR, "open",
6118 GNUNET_free (hostkeys_file);
6119 for (i = 0; i < pg->num_hosts; i++)
6121 GNUNET_free (pg->hosts[i].hostname);
6122 GNUNET_free_non_null (pg->hosts[i].username);
6124 GNUNET_free (pg->peers);
6125 GNUNET_free (pg->hosts);
6130 if (GNUNET_YES != GNUNET_DISK_file_size (hostkeys_file, &fs, GNUNET_YES))
6133 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
6134 "Found file size %llu for hostkeys\n", fs);
6136 if (0 != (fs % HOSTKEYFILESIZE))
6138 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
6139 "File size %llu seems incorrect for hostkeys...\n", fs);
6143 total_hostkeys = fs / HOSTKEYFILESIZE;
6144 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
6145 "Will read %llu hostkeys from file\n", total_hostkeys);
6146 pg->hostkey_data = GNUNET_malloc_large (fs);
6147 GNUNET_assert (fs == GNUNET_DISK_file_read (fd, pg->hostkey_data, fs));
6149 GNUNET_assert (GNUNET_OK == GNUNET_DISK_file_close (fd));
6151 GNUNET_free (hostkeys_file);
6154 for (off = 0; off < total; off++)
6158 hostname = pg->hosts[off % hostcnt].hostname;
6159 username = pg->hosts[off % hostcnt].username;
6160 sshport = pg->hosts[off % hostcnt].sshport;
6162 make_config (cfg, off, &pg->hosts[off % hostcnt].minport, &upnum,
6170 pcfg = make_config (cfg, off, &minport, &upnum, hostname, &fdnum);
6175 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
6177 ("Could not create configuration for peer number %u on `%s'!\n"),
6178 off, hostname == NULL ? "localhost" : hostname);
6183 GNUNET_CONFIGURATION_get_value_string (pcfg, "PATHS", "SERVICEHOME",
6186 if (hostname != NULL)
6187 GNUNET_asprintf (&newservicehome, "%s/%s/%d/", baseservicehome,
6190 GNUNET_asprintf (&newservicehome, "%s/%d/", baseservicehome, off);
6191 GNUNET_free (baseservicehome);
6192 baseservicehome = NULL;
6196 tmpdir = getenv ("TMPDIR");
6197 tmpdir = tmpdir ? tmpdir : "/tmp";
6198 if (hostname != NULL)
6199 GNUNET_asprintf (&newservicehome, "%s/%s/%s/%d/", tmpdir, hostname,
6200 "gnunet-testing-test-test", off);
6202 GNUNET_asprintf (&newservicehome, "%s/%s/%d/", tmpdir,
6203 "gnunet-testing-test-test", off);
6205 GNUNET_CONFIGURATION_set_value_string (pcfg, "PATHS", "SERVICEHOME",
6207 GNUNET_free (newservicehome);
6208 pg->peers[off].cfg = pcfg;
6209 pg->peers[off].pg = pg;
6210 pg->peers[off].internal_context.peer = &pg->peers[off];
6211 pg->peers[off].internal_context.timeout = timeout;
6212 pg->peers[off].internal_context.hostname = hostname;
6213 pg->peers[off].internal_context.username = username;
6214 pg->peers[off].internal_context.sshport = sshport;
6215 if (pg->hostkey_data != NULL)
6216 pg->peers[off].internal_context.hostkey =
6217 &pg->hostkey_data[off * HOSTKEYFILESIZE];
6218 pg->peers[off].internal_context.hostkey_callback = hostkey_callback;
6219 pg->peers[off].internal_context.hostkey_cls = hostkey_cls;
6220 pg->peers[off].internal_context.start_cb = cb;
6221 pg->peers[off].internal_context.start_cb_cls = cb_cls;
6222 #if !USE_START_HELPER
6223 GNUNET_SCHEDULER_add_now (&internal_start,
6224 &pg->peers[off].internal_context);
6226 if ((pg->hostkey_data != NULL) && (hostcnt > 0))
6228 pg->peers[off].daemon =
6229 GNUNET_TESTING_daemon_start (pcfg, timeout, GNUNET_YES, hostname,
6231 pg->peers[off].internal_context.hostkey,
6232 &internal_hostkey_callback,
6233 &pg->peers[off].internal_context,
6234 &internal_startup_callback,
6235 &pg->peers[off].internal_context);
6237 * At this point, given that we had a hostkeyfile,
6238 * we can call the hostkey callback!
6239 * But first, we should copy (rsync) all of the configs
6240 * and hostkeys to the remote peers. Then let topology
6241 * creation happen, then call the peer start helper processes,
6242 * then set pg->whatever_phase for each peer and let them
6243 * enter the fsm to get the HELLO's for peers and start connecting.
6248 GNUNET_SCHEDULER_add_now (&internal_start,
6249 &pg->peers[off].internal_context);
6255 #if USE_START_HELPER /* Now the peergroup has been set up, hostkeys and configs written to files. */
6256 if ((pg->hostkey_data != NULL) && (hostcnt > 0))
6258 for (off = 0; off < hostcnt; off++)
6263 hostname = pg->hosts[off % hostcnt].hostname;
6264 username = pg->hosts[off % hostcnt].username;
6265 sshport = pg->hosts[off % hostcnt].sshport;
6275 GNUNET_CONFIGURATION_get_value_string (cfg, "PATHS", "SERVICEHOME",
6279 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "baseservice home is %s\n",
6282 if (hostname != NULL)
6283 GNUNET_asprintf (&newservicehome, "%s/%s/", baseservicehome,
6286 GNUNET_asprintf (&newservicehome, "%s/", baseservicehome);
6287 GNUNET_free (baseservicehome);
6288 baseservicehome = NULL;
6292 tmpdir = getenv ("TMPDIR");
6293 tmpdir = tmpdir ? tmpdir : "/tmp";
6294 if (hostname != NULL)
6295 GNUNET_asprintf (&newservicehome, "%s/%s/%s/", tmpdir, hostname,
6296 "gnunet-testing-test-test");
6298 GNUNET_asprintf (&newservicehome, "%s/%s/", tmpdir,
6299 "gnunet-testing-test-test", off);
6302 if (NULL != username)
6303 GNUNET_asprintf (&arg, "%s@%s:%s", username, pg->hosts[off].hostname,
6306 GNUNET_asprintf (&arg, "%s:%s", pg->hosts[off].hostname,
6309 /* FIXME: Doesn't support ssh_port option! */
6311 GNUNET_OS_start_process (NULL, NULL, "rsync", "rsync", "-r",
6312 newservicehome, arg, NULL);
6314 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
6315 "copying directory with command rsync -r %s %s\n",
6316 newservicehome, arg);
6318 GNUNET_free (newservicehome);
6322 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
6324 ("Could not start `%s' process to copy configuration directory.\n"),
6328 GNUNET_OS_process_wait (proc);
6329 GNUNET_OS_process_close (proc);
6331 /* Now all the configuration files and hostkeys are copied to the remote host. Call the hostkey callback for each peer! */
6332 GNUNET_SCHEDULER_add_now (&call_hostkey_callbacks, pg);
6339 * Get a daemon by number, so callers don't have to do nasty
6340 * offsetting operation.
6342 struct GNUNET_TESTING_Daemon *
6343 GNUNET_TESTING_daemon_get (struct GNUNET_TESTING_PeerGroup *pg,
6344 unsigned int position)
6346 if (position < pg->total)
6347 return pg->peers[position].daemon;
6352 * Get a daemon by peer identity, so callers can
6353 * retrieve the daemon without knowing it's offset.
6355 * @param pg the peer group to retrieve the daemon from
6356 * @param peer_id the peer identity of the daemon to retrieve
6358 * @return the daemon on success, or NULL if no such peer identity is found
6360 struct GNUNET_TESTING_Daemon *
6361 GNUNET_TESTING_daemon_get_by_id (struct GNUNET_TESTING_PeerGroup *pg,
6362 const struct GNUNET_PeerIdentity *peer_id)
6366 for (i = 0; i < pg->total; i++)
6369 memcmp (&pg->peers[i].daemon->id, peer_id,
6370 sizeof (struct GNUNET_PeerIdentity)))
6371 return pg->peers[i].daemon;
6377 * Prototype of a function that will be called when a
6378 * particular operation was completed the testing library.
6380 * @param cls closure (a struct RestartContext)
6381 * @param id id of the peer that was restarted
6382 * @param cfg handle to the configuration of the peer
6383 * @param d handle to the daemon that was restarted
6384 * @param emsg NULL on success
6387 restart_callback (void *cls, const struct GNUNET_PeerIdentity *id,
6388 const struct GNUNET_CONFIGURATION_Handle *cfg,
6389 struct GNUNET_TESTING_Daemon *d, const char *emsg)
6391 struct RestartContext *restart_context = cls;
6395 restart_context->peers_restarted++;
6399 restart_context->peers_restart_failed++;
6402 if (restart_context->peers_restarted == restart_context->peer_group->total)
6404 restart_context->callback (restart_context->callback_cls, NULL);
6405 GNUNET_free (restart_context);
6407 else if (restart_context->peers_restart_failed +
6408 restart_context->peers_restarted ==
6409 restart_context->peer_group->total)
6411 restart_context->callback (restart_context->callback_cls,
6412 "Failed to restart peers!");
6413 GNUNET_free (restart_context);
6419 * Callback for informing us about a successful
6420 * or unsuccessful churn stop call.
6422 * @param cls a ChurnContext
6423 * @param emsg NULL on success, non-NULL on failure
6427 churn_stop_callback (void *cls, const char *emsg)
6429 struct ShutdownContext *shutdown_ctx = cls;
6430 struct ChurnContext *churn_ctx = shutdown_ctx->cb_cls;
6431 unsigned int total_left;
6432 char *error_message;
6434 error_message = NULL;
6435 shutdown_ctx->outstanding--;
6439 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
6440 "Churn stop callback failed with error `%s'\n", emsg);
6441 churn_ctx->num_failed_stop++;
6445 churn_ctx->num_to_stop--;
6449 (churn_ctx->num_to_stop - churn_ctx->num_failed_stop) +
6450 (churn_ctx->num_to_start - churn_ctx->num_failed_start);
6452 if (total_left == 0)
6454 if ((churn_ctx->num_failed_stop > 0) || (churn_ctx->num_failed_start > 0))
6456 GNUNET_asprintf (&error_message,
6457 "Churn didn't complete successfully, %u peers failed to start %u peers failed to be stopped!",
6458 churn_ctx->num_failed_start, churn_ctx->num_failed_stop);
6460 churn_ctx->cb (churn_ctx->cb_cls, error_message);
6461 GNUNET_free_non_null (error_message);
6462 GNUNET_free (churn_ctx);
6463 GNUNET_free (shutdown_ctx);
6468 * Count the number of running peers.
6470 * @param pg handle for the peer group
6472 * @return the number of currently running peers in the peer group
6475 GNUNET_TESTING_daemons_running (struct GNUNET_TESTING_PeerGroup *pg)
6478 unsigned int running = 0;
6480 for (i = 0; i < pg->total; i++)
6482 if (pg->peers[i].daemon->running == GNUNET_YES)
6484 GNUNET_assert (running != -1);
6492 * Task to rate limit the number of outstanding peer shutdown
6493 * requests. This is necessary for making sure we don't do
6494 * too many ssh connections at once, but is generally nicer
6495 * to any system as well (graduated task starts, as opposed
6496 * to calling gnunet-arm N times all at once).
6499 schedule_churn_shutdown_task (void *cls,
6500 const struct GNUNET_SCHEDULER_TaskContext *tc)
6502 struct PeerShutdownContext *peer_shutdown_ctx = cls;
6503 struct ShutdownContext *shutdown_ctx;
6504 struct ChurnContext *churn_ctx;
6506 GNUNET_assert (peer_shutdown_ctx != NULL);
6507 shutdown_ctx = peer_shutdown_ctx->shutdown_ctx;
6508 GNUNET_assert (shutdown_ctx != NULL);
6509 churn_ctx = (struct ChurnContext *) shutdown_ctx->cb_cls;
6510 if (shutdown_ctx->outstanding > churn_ctx->pg->max_concurrent_ssh)
6511 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply
6512 (GNUNET_TIME_UNIT_MILLISECONDS, 100),
6513 &schedule_churn_shutdown_task,
6517 shutdown_ctx->outstanding++;
6518 if (churn_ctx->service != NULL)
6519 GNUNET_TESTING_daemon_stop_service (peer_shutdown_ctx->daemon,
6521 shutdown_ctx->timeout,
6522 shutdown_ctx->cb, shutdown_ctx);
6524 GNUNET_TESTING_daemon_stop (peer_shutdown_ctx->daemon,
6525 shutdown_ctx->timeout, shutdown_ctx->cb,
6526 shutdown_ctx, GNUNET_NO, GNUNET_YES);
6527 GNUNET_free (peer_shutdown_ctx);
6533 * Simulate churn by stopping some peers (and possibly
6534 * re-starting others if churn is called multiple times). This
6535 * function can only be used to create leave-join churn (peers "never"
6536 * leave for good). First "voff" random peers that are currently
6537 * online will be taken offline; then "von" random peers that are then
6538 * offline will be put back online. No notifications will be
6539 * generated for any of these operations except for the callback upon
6542 * @param pg handle for the peer group
6543 * @param service the service to churn off/on, NULL to churn peer
6544 * @param voff number of peers that should go offline
6545 * @param von number of peers that should come back online;
6546 * must be zero on first call (since "testbed_start"
6547 * always starts all of the peers)
6548 * @param timeout how long to wait for operations to finish before
6550 * @param cb function to call at the end
6551 * @param cb_cls closure for cb
6554 GNUNET_TESTING_daemons_churn (struct GNUNET_TESTING_PeerGroup *pg,
6555 char *service, unsigned int voff,
6557 struct GNUNET_TIME_Relative timeout,
6558 GNUNET_TESTING_NotifyCompletion cb, void *cb_cls)
6560 struct ChurnContext *churn_ctx;
6561 struct ShutdownContext *shutdown_ctx;
6562 struct PeerShutdownContext *peer_shutdown_ctx;
6563 struct PeerRestartContext *peer_restart_ctx;
6564 struct ChurnRestartContext *churn_startup_ctx;
6566 unsigned int running;
6567 unsigned int stopped;
6568 unsigned int total_running;
6569 unsigned int total_stopped;
6571 unsigned int *running_arr;
6572 unsigned int *stopped_arr;
6573 unsigned int *running_permute;
6574 unsigned int *stopped_permute;
6577 shutdown_ctx = NULL;
6578 peer_shutdown_ctx = NULL;
6579 peer_restart_ctx = NULL;
6580 churn_startup_ctx = NULL;
6585 if ((von == 0) && (voff == 0)) /* No peers at all? */
6591 for (i = 0; i < pg->total; i++)
6593 if (service == NULL)
6595 if (pg->peers[i].daemon->running == GNUNET_YES)
6597 GNUNET_assert (running != -1);
6602 GNUNET_assert (stopped != -1);
6608 /* FIXME: make churned services a list! */
6609 pos = pg->peers[i].daemon->churned_services;
6610 /* FIXME: while (pos != NULL) */
6614 if (0 == strcasecmp (pos, service))
6620 GNUNET_assert (stopped != -1);
6622 /* FIXME: pos = pos->next; */
6626 GNUNET_assert (running != -1);
6634 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
6635 "Trying to stop more peers (%d) than are currently running (%d)!\n",
6637 cb (cb_cls, "Trying to stop more peers than are currently running!");
6643 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
6644 "Trying to start more peers (%d) than are currently stopped (%d)!\n",
6646 cb (cb_cls, "Trying to start more peers than are currently stopped!");
6650 churn_ctx = GNUNET_malloc (sizeof (struct ChurnContext));
6652 if (service != NULL)
6653 churn_ctx->service = GNUNET_strdup (service);
6656 running_arr = GNUNET_malloc (running * sizeof (unsigned int));
6660 stopped_arr = GNUNET_malloc (stopped * sizeof (unsigned int));
6662 running_permute = NULL;
6663 stopped_permute = NULL;
6667 GNUNET_CRYPTO_random_permute (GNUNET_CRYPTO_QUALITY_WEAK, running);
6670 GNUNET_CRYPTO_random_permute (GNUNET_CRYPTO_QUALITY_WEAK, stopped);
6672 total_running = running;
6673 total_stopped = stopped;
6677 churn_ctx->num_to_start = von;
6678 churn_ctx->num_to_stop = voff;
6680 churn_ctx->cb_cls = cb_cls;
6683 for (i = 0; i < pg->total; i++)
6685 if (service == NULL)
6687 if (pg->peers[i].daemon->running == GNUNET_YES)
6689 GNUNET_assert ((running_arr != NULL) && (total_running > running));
6690 running_arr[running] = i;
6695 GNUNET_assert ((stopped_arr != NULL) && (total_stopped > stopped));
6696 stopped_arr[stopped] = i;
6702 /* FIXME: make churned services a list! */
6703 pos = pg->peers[i].daemon->churned_services;
6704 /* FIXME: while (pos != NULL) */
6707 GNUNET_assert ((stopped_arr != NULL) && (total_stopped > stopped));
6708 stopped_arr[stopped] = i;
6710 /* FIXME: pos = pos->next; */
6714 GNUNET_assert ((running_arr != NULL) && (total_running > running));
6715 running_arr[running] = i;
6721 GNUNET_assert (running >= voff);
6724 shutdown_ctx = GNUNET_malloc (sizeof (struct ShutdownContext));
6725 shutdown_ctx->cb = &churn_stop_callback;
6726 shutdown_ctx->cb_cls = churn_ctx;
6727 shutdown_ctx->total_peers = voff;
6728 shutdown_ctx->timeout = timeout;
6731 for (i = 0; i < voff; i++)
6734 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Stopping peer %d!\n",
6735 running_arr[running_permute[i]]);
6737 GNUNET_assert (running_arr != NULL);
6738 peer_shutdown_ctx = GNUNET_malloc (sizeof (struct PeerShutdownContext));
6739 peer_shutdown_ctx->daemon =
6740 pg->peers[running_arr[running_permute[i]]].daemon;
6741 peer_shutdown_ctx->shutdown_ctx = shutdown_ctx;
6742 GNUNET_SCHEDULER_add_now (&schedule_churn_shutdown_task, peer_shutdown_ctx);
6745 GNUNET_assert (stopped >= von);
6748 churn_startup_ctx = GNUNET_malloc (sizeof (struct ChurnRestartContext));
6749 churn_startup_ctx->churn_ctx = churn_ctx;
6750 churn_startup_ctx->timeout = timeout;
6751 churn_startup_ctx->pg = pg;
6753 for (i = 0; i < von; i++)
6756 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Starting up peer %d!\n",
6757 stopped_arr[stopped_permute[i]]);
6759 GNUNET_assert (stopped_arr != NULL);
6760 peer_restart_ctx = GNUNET_malloc (sizeof (struct PeerRestartContext));
6761 peer_restart_ctx->churn_restart_ctx = churn_startup_ctx;
6762 peer_restart_ctx->daemon =
6763 pg->peers[stopped_arr[stopped_permute[i]]].daemon;
6764 GNUNET_SCHEDULER_add_now (&schedule_churn_restart, peer_restart_ctx);
6767 GNUNET_free_non_null (running_arr);
6768 GNUNET_free_non_null (stopped_arr);
6769 GNUNET_free_non_null (running_permute);
6770 GNUNET_free_non_null (stopped_permute);
6774 * Start a given service for each of the peers in the peer group.
6776 * @param pg handle for the peer group
6777 * @param service the service to start
6778 * @param timeout how long to wait for operations to finish before
6780 * @param cb function to call once finished
6781 * @param cb_cls closure for cb
6785 GNUNET_TESTING_daemons_start_service (struct GNUNET_TESTING_PeerGroup *pg,
6787 struct GNUNET_TIME_Relative timeout,
6788 GNUNET_TESTING_NotifyCompletion cb,
6791 struct ServiceStartContext *start_ctx;
6792 struct PeerServiceStartContext *peer_start_ctx;
6795 GNUNET_assert (service != NULL);
6797 start_ctx = GNUNET_malloc (sizeof (struct ServiceStartContext));
6799 start_ctx->remaining = pg->total;
6801 start_ctx->cb_cls = cb_cls;
6802 start_ctx->service = GNUNET_strdup (service);
6803 start_ctx->timeout = timeout;
6805 for (i = 0; i < pg->total; i++)
6808 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Starting up service %s on peer %d!\n",
6809 service, stopped_arr[stopped_permute[i]]);
6811 peer_start_ctx = GNUNET_malloc (sizeof (struct PeerServiceStartContext));
6812 peer_start_ctx->start_ctx = start_ctx;
6813 peer_start_ctx->daemon = pg->peers[i].daemon;
6814 GNUNET_SCHEDULER_add_now (&schedule_service_start, peer_start_ctx);
6819 * Restart all peers in the given group.
6821 * @param pg the handle to the peer group
6822 * @param callback function to call on completion (or failure)
6823 * @param callback_cls closure for the callback function
6826 GNUNET_TESTING_daemons_restart (struct GNUNET_TESTING_PeerGroup *pg,
6827 GNUNET_TESTING_NotifyCompletion callback,
6830 struct RestartContext *restart_context;
6835 restart_context = GNUNET_malloc (sizeof (struct RestartContext));
6836 restart_context->peer_group = pg;
6837 restart_context->peers_restarted = 0;
6838 restart_context->callback = callback;
6839 restart_context->callback_cls = callback_cls;
6841 for (off = 0; off < pg->total; off++)
6843 GNUNET_TESTING_daemon_restart (pg->peers[off].daemon, &restart_callback,
6851 * Start or stop an individual peer from the given group.
6853 * @param pg handle to the peer group
6854 * @param offset which peer to start or stop
6855 * @param desired_status GNUNET_YES to have it running, GNUNET_NO to stop it
6856 * @param timeout how long to wait for shutdown
6857 * @param cb function to call at the end
6858 * @param cb_cls closure for cb
6861 GNUNET_TESTING_daemons_vary (struct GNUNET_TESTING_PeerGroup *pg,
6862 unsigned int offset, int desired_status,
6863 struct GNUNET_TIME_Relative timeout,
6864 GNUNET_TESTING_NotifyCompletion cb, void *cb_cls)
6866 struct ShutdownContext *shutdown_ctx;
6867 struct ChurnRestartContext *startup_ctx;
6868 struct ChurnContext *churn_ctx;
6870 if (GNUNET_NO == desired_status)
6872 if (NULL != pg->peers[offset].daemon)
6874 shutdown_ctx = GNUNET_malloc (sizeof (struct ShutdownContext));
6875 churn_ctx = GNUNET_malloc (sizeof (struct ChurnContext));
6876 churn_ctx->num_to_start = 0;
6877 churn_ctx->num_to_stop = 1;
6879 churn_ctx->cb_cls = cb_cls;
6880 shutdown_ctx->cb_cls = churn_ctx;
6881 GNUNET_TESTING_daemon_stop (pg->peers[offset].daemon, timeout,
6882 &churn_stop_callback, shutdown_ctx, GNUNET_NO,
6886 else if (GNUNET_YES == desired_status)
6888 if (NULL == pg->peers[offset].daemon)
6890 startup_ctx = GNUNET_malloc (sizeof (struct ChurnRestartContext));
6891 churn_ctx = GNUNET_malloc (sizeof (struct ChurnContext));
6892 churn_ctx->num_to_start = 1;
6893 churn_ctx->num_to_stop = 0;
6895 churn_ctx->cb_cls = cb_cls;
6896 startup_ctx->churn_ctx = churn_ctx;
6897 GNUNET_TESTING_daemon_start_stopped (pg->peers[offset].daemon, timeout,
6898 &churn_start_callback, startup_ctx);
6907 * Callback for shutting down peers in a peer group.
6909 * @param cls closure (struct ShutdownContext)
6910 * @param emsg NULL on success
6913 internal_shutdown_callback (void *cls, const char *emsg)
6915 struct PeerShutdownContext *peer_shutdown_ctx = cls;
6916 struct ShutdownContext *shutdown_ctx = peer_shutdown_ctx->shutdown_ctx;
6919 struct OutstandingSSH *ssh_pos;
6921 shutdown_ctx->outstanding--;
6922 if (peer_shutdown_ctx->daemon->hostname != NULL)
6923 decrement_outstanding_at_host (peer_shutdown_ctx->daemon->hostname,
6928 shutdown_ctx->peers_down++;
6933 GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, "internal_shutdown_callback",
6934 "Failed to stop a peer: %s\n", emsg);
6936 shutdown_ctx->peers_failed++;
6939 if ((shutdown_ctx->cb != NULL) &&
6940 (shutdown_ctx->peers_down + shutdown_ctx->peers_failed ==
6941 shutdown_ctx->total_peers))
6943 if (shutdown_ctx->peers_failed > 0)
6944 shutdown_ctx->cb (shutdown_ctx->cb_cls,
6945 "Not all peers successfully shut down!");
6947 shutdown_ctx->cb (shutdown_ctx->cb_cls, NULL);
6949 for (i = 0; i < shutdown_ctx->pg->total; i++)
6951 if (shutdown_ctx->pg->peers[i].startup_task != GNUNET_SCHEDULER_NO_TASK)
6952 GNUNET_SCHEDULER_cancel (shutdown_ctx->pg->peers[i].startup_task);
6954 GNUNET_free (shutdown_ctx->pg->peers);
6955 GNUNET_free_non_null (shutdown_ctx->pg->hostkey_data);
6956 for (off = 0; off < shutdown_ctx->pg->num_hosts; off++)
6958 GNUNET_free (shutdown_ctx->pg->hosts[off].hostname);
6959 GNUNET_free_non_null (shutdown_ctx->pg->hosts[off].username);
6961 GNUNET_free_non_null (shutdown_ctx->pg->hosts);
6962 while (NULL != (ssh_pos = shutdown_ctx->pg->ssh_head))
6964 GNUNET_CONTAINER_DLL_remove (shutdown_ctx->pg->ssh_head,
6965 shutdown_ctx->pg->ssh_tail, ssh_pos);
6966 GNUNET_free (ssh_pos);
6968 GNUNET_free (shutdown_ctx->pg);
6969 GNUNET_free (shutdown_ctx);
6971 GNUNET_free (peer_shutdown_ctx);
6976 * Task to rate limit the number of outstanding peer shutdown
6977 * requests. This is necessary for making sure we don't do
6978 * too many ssh connections at once, but is generally nicer
6979 * to any system as well (graduated task starts, as opposed
6980 * to calling gnunet-arm N times all at once).
6983 schedule_shutdown_task (void *cls,
6984 const struct GNUNET_SCHEDULER_TaskContext *tc)
6986 struct PeerShutdownContext *peer_shutdown_ctx = cls;
6987 struct ShutdownContext *shutdown_ctx;
6989 GNUNET_assert (peer_shutdown_ctx != NULL);
6990 shutdown_ctx = peer_shutdown_ctx->shutdown_ctx;
6991 GNUNET_assert (shutdown_ctx != NULL);
6993 if ((shutdown_ctx->outstanding < shutdown_ctx->pg->max_concurrent_ssh) ||
6994 ((peer_shutdown_ctx->daemon->hostname != NULL) &&
6995 (count_outstanding_at_host
6996 (peer_shutdown_ctx->daemon->hostname,
6997 shutdown_ctx->pg) < shutdown_ctx->pg->max_concurrent_ssh)))
6999 if (peer_shutdown_ctx->daemon->hostname != NULL)
7000 increment_outstanding_at_host (peer_shutdown_ctx->daemon->hostname,
7002 shutdown_ctx->outstanding++;
7003 GNUNET_TESTING_daemon_stop (peer_shutdown_ctx->daemon,
7004 shutdown_ctx->timeout,
7005 &internal_shutdown_callback, peer_shutdown_ctx,
7006 shutdown_ctx->delete_files, GNUNET_NO);
7009 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply
7010 (GNUNET_TIME_UNIT_MILLISECONDS, 100),
7011 &schedule_shutdown_task, peer_shutdown_ctx);
7016 * Read a testing hosts file based on a configuration.
7017 * Returns a DLL of hosts (caller must free!) on success
7018 * or NULL on failure.
7020 * @param cfg a configuration with a testing section
7022 * @return DLL of hosts on success, NULL on failure
7024 struct GNUNET_TESTING_Host *
7025 GNUNET_TESTING_hosts_load (const struct GNUNET_CONFIGURATION_Handle *cfg)
7027 struct GNUNET_TESTING_Host *hosts;
7028 struct GNUNET_TESTING_Host *temphost;
7036 /* Check for a hostfile containing user@host:port triples */
7038 GNUNET_CONFIGURATION_get_value_string (cfg, "testing", "hostfile",
7045 if (hostfile != NULL)
7047 if (GNUNET_OK != GNUNET_DISK_file_test (hostfile))
7048 GNUNET_DISK_fn_write (hostfile, NULL, 0,
7049 GNUNET_DISK_PERM_USER_READ |
7050 GNUNET_DISK_PERM_USER_WRITE);
7051 if ((0 != STAT (hostfile, &frstat)) || (frstat.st_size == 0))
7053 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
7054 "Could not open file specified for host list, ending test!");
7055 GNUNET_free (hostfile);
7059 data = GNUNET_malloc_large (frstat.st_size);
7060 GNUNET_assert (data != NULL);
7061 if (frstat.st_size != GNUNET_DISK_fn_read (hostfile, data, frstat.st_size))
7063 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
7064 "Could not read file %s specified for host list, ending test!",
7066 GNUNET_free (hostfile);
7071 GNUNET_free_non_null (hostfile);
7075 while (count < frstat.st_size - 1)
7078 if (((data[count] == '\n')) && (buf != &data[count]))
7081 temphost = GNUNET_malloc (sizeof (struct GNUNET_TESTING_Host));
7083 sscanf (buf, "%a[a-zA-Z0-9_]@%a[a-zA-Z0-9.]:%hd",
7084 &temphost->username, &temphost->hostname, &temphost->port);
7087 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
7088 "Successfully read host %s, port %d and user %s from file\n",
7089 temphost->hostname, temphost->port, temphost->username);
7093 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
7094 "Error reading line `%s' in hostfile\n", buf);
7095 GNUNET_free (temphost);
7096 buf = &data[count + 1];
7099 temphost->next = hosts;
7101 buf = &data[count + 1];
7103 else if ((data[count] == '\n') || (data[count] == '\0'))
7104 buf = &data[count + 1];
7107 GNUNET_free_non_null (data);
7113 * Shutdown all peers started in the given group.
7115 * @param pg handle to the peer group
7116 * @param timeout how long to wait for shutdown
7117 * @param cb callback to notify upon success or failure
7118 * @param cb_cls closure for cb
7121 GNUNET_TESTING_daemons_stop (struct GNUNET_TESTING_PeerGroup *pg,
7122 struct GNUNET_TIME_Relative timeout,
7123 GNUNET_TESTING_NotifyCompletion cb, void *cb_cls)
7126 struct ShutdownContext *shutdown_ctx;
7127 struct PeerShutdownContext *peer_shutdown_ctx;
7130 struct PeerConnection *conn_iter;
7131 struct PeerConnection *temp_conn;
7133 struct ConnectContext *cc;
7135 GNUNET_assert (pg->total > 0);
7136 while (NULL != (cc = pg->cc_head))
7138 GNUNET_CONTAINER_DLL_remove (pg->cc_head, pg->cc_tail, cc);
7139 if (GNUNET_SCHEDULER_NO_TASK != cc->task)
7140 GNUNET_SCHEDULER_cancel (cc->task);
7142 GNUNET_TESTING_daemons_connect_cancel (cc->cc);
7146 shutdown_ctx = GNUNET_malloc (sizeof (struct ShutdownContext));
7147 shutdown_ctx->delete_files =
7148 GNUNET_CONFIGURATION_get_value_yesno (pg->cfg, "TESTING", "DELETE_FILES");
7149 shutdown_ctx->cb = cb;
7150 shutdown_ctx->cb_cls = cb_cls;
7151 shutdown_ctx->total_peers = pg->total;
7152 shutdown_ctx->timeout = timeout;
7153 shutdown_ctx->pg = pg;
7155 for (off = 0; off < pg->total; off++)
7157 GNUNET_assert (NULL != pg->peers[off].daemon);
7158 peer_shutdown_ctx = GNUNET_malloc (sizeof (struct PeerShutdownContext));
7159 peer_shutdown_ctx->daemon = pg->peers[off].daemon;
7160 peer_shutdown_ctx->shutdown_ctx = shutdown_ctx;
7161 GNUNET_SCHEDULER_add_now (&schedule_shutdown_task, peer_shutdown_ctx);
7163 if (NULL != pg->peers[off].cfg)
7165 GNUNET_CONFIGURATION_destroy (pg->peers[off].cfg);
7166 pg->peers[off].cfg = NULL;
7169 conn_iter = pg->peers[off].allowed_peers_head;
7170 while (conn_iter != NULL)
7172 temp_conn = conn_iter->next;
7173 GNUNET_free (conn_iter);
7174 conn_iter = temp_conn;
7177 conn_iter = pg->peers[off].connect_peers_head;
7178 while (conn_iter != NULL)
7180 temp_conn = conn_iter->next;
7181 GNUNET_free (conn_iter);
7182 conn_iter = temp_conn;
7185 conn_iter = pg->peers[off].blacklisted_peers_head;
7186 while (conn_iter != NULL)
7188 temp_conn = conn_iter->next;
7189 GNUNET_free (conn_iter);
7190 conn_iter = temp_conn;
7193 conn_iter = pg->peers[off].connect_peers_working_set_head;
7194 while (conn_iter != NULL)
7196 temp_conn = conn_iter->next;
7197 GNUNET_free (conn_iter);
7198 conn_iter = temp_conn;
7201 if (pg->peers[off].allowed_peers != NULL)
7202 GNUNET_CONTAINER_multihashmap_destroy (pg->peers[off].allowed_peers);
7203 if (pg->peers[off].connect_peers != NULL)
7204 GNUNET_CONTAINER_multihashmap_destroy (pg->peers[off].connect_peers);
7205 if (pg->peers[off].blacklisted_peers != NULL)
7206 GNUNET_CONTAINER_multihashmap_destroy (pg->peers[off].blacklisted_peers);
7211 /* end of testing_group.c */