2 This file is part of GNUnet
3 (C) 2008, 2009 Christian Grothoff (and other contributing authors)
5 GNUnet is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published
7 by the Free Software Foundation; either version 3, or (at your
8 option) any later version.
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11 WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with GNUnet; see the file COPYING. If not, write to the
17 Free Software Foundation, Inc., 59 Temple Place - Suite 330,
18 Boston, MA 02111-1307, USA.
22 * @file testing_old/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 USE_START_HELPER GNUNET_YES
37 /* Before connecting peers, send all of the HELLOs */
38 #define USE_SEND_HELLOS GNUNET_NO
40 #define TOPOLOGY_HACK GNUNET_YES
44 * Lowest port used for GNUnet testing. Should be high enough to not
45 * conflict with other applications running on the hosts but be low
46 * enough to not conflict with client-ports (typically starting around
49 #define LOW_PORT 12000
52 * Highest port used for GNUnet testing. Should be low enough to not
53 * conflict with the port range for "local" ports (client apps; see
54 * /proc/sys/net/ipv4/ip_local_port_range on Linux for example).
56 #define HIGH_PORT 56000
58 /* Maximum time to delay connect attempt */
59 #define MAX_CONNECT_DELAY 300
62 * Which list of peers do we need to modify?
66 /** Modify allowed peers */
69 /** Modify connect peers */
72 /** Modify blacklist peers */
75 /** Modify workingset peers */
80 * Prototype of a function called whenever two peers would be connected
81 * in a certain topology.
83 typedef unsigned int (*GNUNET_TESTING_ConnectionProcessor) (struct
84 GNUNET_TESTING_PeerGroup
92 * Context for handling churning a peer group
97 * The peergroup we are dealing with.
99 struct GNUNET_TESTING_PeerGroup *pg;
102 * Name of the service to churn on/off, NULL
103 * to churn entire peer.
108 * Callback used to notify of churning finished
110 GNUNET_TESTING_NotifyCompletion cb;
113 * Closure for callback
118 * Number of peers that still need to be started
120 unsigned int num_to_start;
123 * Number of peers that still need to be stopped
125 unsigned int num_to_stop;
128 * Number of peers that failed to start
130 unsigned int num_failed_start;
133 * Number of peers that failed to stop
135 unsigned int num_failed_stop;
138 struct RestartContext
141 * The group of peers being restarted
143 struct GNUNET_TESTING_PeerGroup *peer_group;
146 * How many peers have been restarted thus far
148 unsigned int peers_restarted;
151 * How many peers got an error when restarting
153 unsigned int peers_restart_failed;
156 * The function to call once all peers have been restarted
158 GNUNET_TESTING_NotifyCompletion callback;
161 * Closure for callback function
167 struct SendHelloContext
170 * Global handle to the peer group.
172 struct GNUNET_TESTING_PeerGroup *pg;
175 * The data about this specific peer.
177 struct PeerData *peer;
180 * The next HELLO that needs sent to this peer.
182 struct PeerConnection *peer_pos;
185 * Are we connected to CORE yet?
187 unsigned int core_ready;
190 * How many attempts should we make for failed connections?
192 unsigned int connect_attempts;
195 * Task for scheduling core connect requests to be sent.
197 GNUNET_SCHEDULER_TaskIdentifier core_connect_task;
200 struct ShutdownContext
202 struct GNUNET_TESTING_PeerGroup *pg;
204 * Total peers to wait for
206 unsigned int total_peers;
209 * Number of peers successfully shut down
211 unsigned int peers_down;
214 * Number of peers failed to shut down
216 unsigned int peers_failed;
219 * Number of peers we have started shutting
220 * down. If too many, wait on them.
222 unsigned int outstanding;
225 * Timeout for shutdown.
227 struct GNUNET_TIME_Relative timeout;
230 * Callback to call when all peers either
231 * shutdown or failed to shutdown
233 GNUNET_TESTING_NotifyCompletion cb;
241 * Should we delete all of the files from the peers?
247 * Individual shutdown context for a particular peer.
249 struct PeerShutdownContext
252 * Pointer to the high level shutdown context.
254 struct ShutdownContext *shutdown_ctx;
257 * The daemon handle for the peer to shut down.
259 struct GNUNET_TESTING_Daemon *daemon;
263 * Individual shutdown context for a particular peer.
265 struct PeerRestartContext
268 * Pointer to the high level restart context.
270 struct ChurnRestartContext *churn_restart_ctx;
273 * The daemon handle for the peer to shut down.
275 struct GNUNET_TESTING_Daemon *daemon;
278 struct ServiceStartContext
280 struct GNUNET_TESTING_PeerGroup *pg;
281 unsigned int remaining;
282 GNUNET_TESTING_NotifyCompletion cb;
283 unsigned int outstanding;
285 struct GNUNET_TIME_Relative timeout;
290 * Individual shutdown context for a particular peer.
292 struct PeerServiceStartContext
295 * Pointer to the high level start context.
297 struct ServiceStartContext *start_ctx;
300 * The daemon handle for the peer to start the service on.
302 struct GNUNET_TESTING_Daemon *daemon;
305 struct CreateTopologyContext
309 * Function to call with number of connections
311 GNUNET_TESTING_NotifyConnections cont;
314 * Closure for connection notification
321 /** Waiting to read number of peers */
324 /** Should find next peer index */
327 /** Should find colon */
330 /** Should read other peer index, space, or endline */
335 struct PeerConnection
340 struct PeerConnection *prev;
345 struct PeerConnection *next;
348 * Index of daemon in pg->peers
355 struct InternalStartContext
358 * Pointer to peerdata
360 struct PeerData *peer;
363 * Timeout for peer startup
365 struct GNUNET_TIME_Relative timeout;
368 * Client callback for hostkey notification
370 GNUNET_TESTING_NotifyHostkeyCreated hostkey_callback;
373 * Closure for hostkey_callback
378 * Client callback for peer start notification
380 GNUNET_TESTING_NotifyDaemonRunning start_cb;
388 * Hostname, where to start the peer
390 const char *hostname;
393 * Username to use when connecting to the
396 const char *username;
399 * Pointer to starting memory location of a hostkey
404 * Port to use for ssh.
410 struct ChurnRestartContext
413 * PeerGroup that we are working with.
415 struct GNUNET_TESTING_PeerGroup *pg;
418 * Number of restarts currently in flight.
420 unsigned int outstanding;
423 * Handle to the underlying churn context.
425 struct ChurnContext *churn_ctx;
428 * How long to allow the operation to take.
430 struct GNUNET_TIME_Relative timeout;
433 struct OutstandingSSH
435 struct OutstandingSSH *next;
437 struct OutstandingSSH *prev;
440 * Number of current ssh connections.
442 uint32_t outstanding;
445 * The hostname of this peer.
447 const char *hostname;
451 * Data we keep per peer.
456 * (Initial) configuration of the host.
457 * (initial because clients could change
458 * it and we would not know about those
461 struct GNUNET_CONFIGURATION_Handle *cfg;
464 * Handle for controlling the daemon.
466 struct GNUNET_TESTING_Daemon *daemon;
469 * The peergroup this peer belongs to.
471 struct GNUNET_TESTING_PeerGroup *pg;
475 * Linked list of allowed peer connections.
477 struct PeerConnection *allowed_peers_head;
480 * Linked list of allowed peer connections.
482 struct PeerConnection *allowed_peers_tail;
485 * Linked list of blacklisted peer connections.
487 struct PeerConnection *blacklisted_peers_head;
490 * Linked list of blacklisted peer connections.
492 struct PeerConnection *blacklisted_peers_tail;
495 * Linked list of connect peer connections.
497 struct PeerConnection *connect_peers_head;
500 * Linked list of connect peer connections.
502 struct PeerConnection *connect_peers_tail;
505 * Linked list of connect peer connections.
507 struct PeerConnection *connect_peers_working_set_head;
510 * Linked list of connect peer connections.
512 struct PeerConnection *connect_peers_working_set_tail;
516 * Hash map of allowed peer connections (F2F created topology)
518 struct GNUNET_CONTAINER_MultiHashMap *allowed_peers;
521 * Hash map of blacklisted peers
523 struct GNUNET_CONTAINER_MultiHashMap *blacklisted_peers;
526 * Hash map of peer connections
528 struct GNUNET_CONTAINER_MultiHashMap *connect_peers;
531 * Temporary hash map of peer connections
533 struct GNUNET_CONTAINER_MultiHashMap *connect_peers_working_set;
537 * Temporary variable for topology creation, should be reset before
538 * creating any topology so the count is valid once finished.
543 * Context to keep track of peers being started, to
544 * stagger hostkey generation and peer startup.
546 struct InternalStartContext internal_context;
549 * Task ID for the queued internal_continue_startup task
551 GNUNET_SCHEDULER_TaskIdentifier startup_task;
556 * Linked list of per-host data.
566 * SSH username to use when connecting to this host.
571 * SSH port to use when connecting to this host.
576 * Lowest port that we have not yet used
582 struct TopologyIterateContext
585 * The peergroup we are working with.
587 struct GNUNET_TESTING_PeerGroup *pg;
590 * Callback for notifying of two connected peers.
592 GNUNET_TESTING_NotifyTopology topology_cb;
595 * Closure for topology_cb
600 * Number of peers currently connected to.
602 unsigned int connected;
605 * Number of peers we have finished iterating.
607 unsigned int completed;
610 * Number of peers total.
615 struct StatsIterateContext
618 * The peergroup that we are dealing with.
620 struct GNUNET_TESTING_PeerGroup *pg;
623 * Continuation to call once all stats information has been retrieved.
625 GNUNET_STATISTICS_Callback cont;
628 * Proc function to call on each value received.
630 GNUNET_TESTING_STATISTICS_Iterator proc;
633 * Closure for topology_cb
638 * Number of peers currently connected to.
640 unsigned int connected;
643 * Number of peers we have finished iterating.
645 unsigned int completed;
648 * Number of peers total.
656 struct GNUNET_TESTING_Daemon *daemon;
659 struct StatsCoreContext
662 struct GNUNET_TESTING_Daemon *daemon;
664 * Handle to the statistics service.
666 struct GNUNET_STATISTICS_Handle *stats_handle;
669 * Handle for getting statistics.
671 struct GNUNET_STATISTICS_GetHandle *stats_get_handle;
674 struct ConnectTopologyContext
677 * How many connections are left to create.
679 unsigned int remaining_connections;
682 * Handle to group of peers.
684 struct GNUNET_TESTING_PeerGroup *pg;
687 * How long to try this connection before timing out.
689 struct GNUNET_TIME_Relative connect_timeout;
692 * How many times to retry connecting the two peers.
694 unsigned int connect_attempts;
697 * Temp value set for each iteration.
699 //struct PeerData *first;
702 * Notification that all peers are connected.
704 GNUNET_TESTING_NotifyCompletion notify_connections_done;
707 * Closure for notify.
712 struct ConnectContext;
715 * Handle to a group of GNUnet peers.
717 struct GNUNET_TESTING_PeerGroup
720 * Configuration template.
722 const struct GNUNET_CONFIGURATION_Handle *cfg;
724 struct ConnectContext *cc_head;
726 struct ConnectContext *cc_tail;
729 * Function to call on each started daemon.
731 //GNUNET_TESTING_NotifyDaemonRunning cb;
739 * Function to call on each topology connection created
741 GNUNET_TESTING_NotifyConnection notify_connection;
744 * Callback for notify_connection
746 void *notify_connection_cls;
749 * Array of information about hosts.
751 struct HostData *hosts;
754 * Number of hosts (size of HostData)
756 unsigned int num_hosts;
759 * Array of "total" peers.
761 struct PeerData *peers;
764 * Number of peers in this group.
769 * At what time should we fail the peer startup process?
771 struct GNUNET_TIME_Absolute max_timeout;
774 * How many peers are being started right now?
776 unsigned int starting;
779 * How many peers have already been started?
781 unsigned int started;
784 * Number of possible connections to peers
787 unsigned int max_outstanding_connections;
790 * Number of ssh connections to peers (max).
792 unsigned int max_concurrent_ssh;
795 * Number of connects we are waiting on, allows us to rate limit
798 unsigned int outstanding_connects;
801 * Number of HELLOs we have yet to send.
803 unsigned int remaining_hellos;
806 * How many connects have already been scheduled?
808 unsigned int total_connects_scheduled;
811 * Hostkeys loaded from a file.
816 * Head of DLL to keep track of the number of outstanding
817 * ssh connections per peer.
819 struct OutstandingSSH *ssh_head;
822 * Tail of DLL to keep track of the number of outstanding
823 * ssh connections per peer.
825 struct OutstandingSSH *ssh_tail;
828 * Stop scheduling peers connecting.
830 unsigned int stop_connects;
833 * Connection context for peer group.
835 struct ConnectTopologyContext ct_ctx;
841 * The altered configuration.
843 struct GNUNET_CONFIGURATION_Handle *ret;
846 * The original configuration to alter.
848 const struct GNUNET_CONFIGURATION_Handle *orig;
851 * The hostname that this peer will run on.
853 const char *hostname;
856 * The next possible port to assign.
861 * Unique number for unix domain sockets.
866 * Unique number for this peer/host to offset
867 * things that are grouped by host.
872 struct ConnectContext
875 struct ConnectContext *next;
877 struct ConnectContext *prev;
880 * Index of peer to connect second to.
882 uint32_t first_index;
885 * Index of peer to connect first to.
887 uint32_t second_index;
890 * Task associated with the attempt to connect.
892 GNUNET_SCHEDULER_TaskIdentifier task;
895 * Context in 'testing.c', to cancel connection attempt.
897 struct GNUNET_TESTING_ConnectContext *cc;
900 * Higher level topology connection context.
902 struct ConnectTopologyContext *ct_ctx;
905 * Whether this connection has been accounted for in the schedule_connect call.
910 struct UnblacklistContext
915 struct GNUNET_TESTING_PeerGroup *pg;
918 * uid of the first peer
928 struct GNUNET_TESTING_PeerGroup *pg;
931 * uid of the first peer
936 * Peer data for first peer.
938 struct PeerData *first;
941 * Random percentage to use
946 struct MinimumContext
951 struct GNUNET_TESTING_PeerGroup *pg;
954 * uid of the first peer
959 * Peer data for first peer.
961 struct PeerData *first;
964 * Number of conns per peer
966 unsigned int num_to_add;
969 * Permuted array of all possible connections. Only add the Nth
970 * peer if it's in the Nth position.
972 unsigned int *pg_array;
975 * What number is the current element we are iterating over?
977 unsigned int current;
985 struct GNUNET_TESTING_PeerGroup *pg;
988 * uid of the first peer
993 * uid of the second peer
998 * Peer data for first peer.
1000 struct PeerData *first;
1003 * Which peer has been chosen as the one to add?
1005 unsigned int chosen;
1008 * What number is the current element we are iterating over?
1010 unsigned int current;
1014 * Simple struct to keep track of progress, and print a
1015 * nice little percentage meter for long running tasks.
1017 struct ProgressMeter
1021 unsigned int modnum;
1023 unsigned int dotnum;
1025 unsigned int completed;
1029 char *startup_string;
1034 * Convert unique ID to hash code.
1036 * @param uid unique ID to convert
1037 * @param hash set to uid (extended with zeros)
1040 hash_from_uid (uint32_t uid, struct GNUNET_HashCode * hash)
1042 memset (hash, 0, sizeof (struct GNUNET_HashCode));
1043 *((uint32_t *) hash) = uid;
1047 * Convert hash code to unique ID.
1049 * @param uid unique ID to convert
1050 * @param hash set to uid (extended with zeros)
1053 uid_from_hash (const struct GNUNET_HashCode * hash, uint32_t * uid)
1055 memcpy (uid, hash, sizeof (uint32_t));
1060 static struct GNUNET_CORE_MessageHandler no_handlers[] = {
1066 * Create a meter to keep track of the progress of some task.
1068 * @param total the total number of items to complete
1069 * @param start_string a string to prefix the meter with (if printing)
1070 * @param print GNUNET_YES to print the meter, GNUNET_NO to count
1073 * @return the progress meter
1075 static struct ProgressMeter *
1076 create_meter (unsigned int total, char *start_string, int print)
1078 struct ProgressMeter *ret;
1080 ret = GNUNET_malloc (sizeof (struct ProgressMeter));
1083 ret->modnum = total / 4;
1084 if (ret->modnum == 0) /* Divide by zero check */
1086 ret->dotnum = (total / 50) + 1;
1087 if (start_string != NULL)
1088 ret->startup_string = GNUNET_strdup (start_string);
1090 ret->startup_string = GNUNET_strdup ("");
1096 * Update progress meter (increment by one).
1098 * @param meter the meter to update and print info for
1100 * @return GNUNET_YES if called the total requested,
1101 * GNUNET_NO if more items expected
1104 update_meter (struct ProgressMeter *meter)
1106 if (meter->print == GNUNET_YES)
1108 if (meter->completed % meter->modnum == 0)
1110 if (meter->completed == 0)
1112 FPRINTF (stdout, "%sProgress: [0%%", meter->startup_string);
1115 FPRINTF (stdout, "%d%%",
1116 (int) (((float) meter->completed / meter->total) * 100));
1118 else if (meter->completed % meter->dotnum == 0)
1119 FPRINTF (stdout, "%s", ".");
1121 if (meter->completed + 1 == meter->total)
1122 FPRINTF (stdout, "%d%%]\n", 100);
1127 if (meter->completed == meter->total)
1129 if (meter->completed > meter->total)
1130 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Progress meter overflow!!\n");
1135 * Reset progress meter.
1137 * @param meter the meter to reset
1139 * @return GNUNET_YES if meter reset,
1140 * GNUNET_SYSERR on error
1143 reset_meter (struct ProgressMeter *meter)
1146 return GNUNET_SYSERR;
1148 meter->completed = 0;
1153 * Release resources for meter
1155 * @param meter the meter to free
1158 free_meter (struct ProgressMeter *meter)
1160 GNUNET_free_non_null (meter->startup_string);
1161 GNUNET_free (meter);
1165 * Get a topology from a string input.
1167 * @param topology where to write the retrieved topology
1168 * @param topology_string The string to attempt to
1169 * get a configuration value from
1170 * @return GNUNET_YES if topology string matched a
1171 * known topology, GNUNET_NO if not
1174 GNUNET_TESTING_topology_get (enum GNUNET_TESTING_Topology *topology,
1175 const char *topology_string)
1178 * Strings representing topologies in enum
1180 static const char *topology_strings[] = {
1182 * A clique (everyone connected to everyone else).
1187 * Small-world network (2d torus plus random links).
1192 * Small-world network (ring plus random links).
1212 * Certain percentage of peers are unable to communicate directly
1213 * replicating NAT conditions
1218 * Scale free topology.
1223 * Straight line topology.
1228 * All peers are disconnected.
1233 * Read the topology from a file.
1242 if (topology_string == NULL)
1244 while (topology_strings[curr] != NULL)
1246 if (strcasecmp (topology_strings[curr], topology_string) == 0)
1253 *topology = GNUNET_TESTING_TOPOLOGY_NONE;
1258 * Get connect topology option from string input.
1260 * @param topology_option where to write the retrieved topology
1261 * @param topology_string The string to attempt to
1262 * get a configuration value from
1263 * @return GNUNET_YES if string matched a known
1264 * topology option, GNUNET_NO if not
1267 GNUNET_TESTING_topology_option_get (enum GNUNET_TESTING_TopologyOption
1269 const char *topology_string)
1272 * Options for connecting a topology as strings.
1274 static const char *topology_option_strings[] = {
1276 * Try to connect all peers specified in the topology.
1281 * Choose a random subset of connections to create.
1283 "CONNECT_RANDOM_SUBSET",
1286 * Create at least X connections for each peer.
1291 * Using a depth first search, create one connection
1292 * per peer. If any are missed (graph disconnected)
1293 * start over at those peers until all have at least one
1299 * Find the N closest peers to each allowed peer in the
1300 * topology and make sure a connection to those peers
1301 * exists in the connect topology.
1306 * No options specified.
1314 if (topology_string == NULL)
1316 while (NULL != topology_option_strings[curr])
1318 if (strcasecmp (topology_option_strings[curr], topology_string) == 0)
1320 *topology_option = curr;
1325 *topology_option = GNUNET_TESTING_TOPOLOGY_OPTION_NONE;
1330 * Function to iterate over options. Copies
1331 * the options to the target configuration,
1332 * updating PORT values as needed.
1334 * @param cls closure
1335 * @param section name of the section
1336 * @param option name of the option
1337 * @param value value of the option
1340 update_config (void *cls, const char *section, const char *option,
1343 struct UpdateContext *ctx = cls;
1347 char *single_variable;
1348 char *per_host_variable;
1349 unsigned long long num_per_host;
1351 GNUNET_asprintf (&single_variable, "single_%s_per_host", section);
1352 GNUNET_asprintf (&per_host_variable, "num_%s_per_host", section);
1354 if ((0 == strcmp (option, "PORT")) && (1 == SSCANF (value, "%u", &ival)))
1358 GNUNET_CONFIGURATION_get_value_yesno (ctx->orig, "testing_old",
1361 GNUNET_snprintf (cval, sizeof (cval), "%u", ctx->nport++);
1364 else if ((ival != 0) &&
1366 GNUNET_CONFIGURATION_get_value_yesno (ctx->orig, "testing_old",
1367 single_variable)) &&
1368 GNUNET_CONFIGURATION_get_value_number (ctx->orig, "testing_old",
1372 GNUNET_snprintf (cval, sizeof (cval), "%u",
1373 ival + ctx->fdnum % num_per_host);
1377 /* FIXME: REMOVE FOREVER HACK HACK HACK */
1378 if (0 == strcasecmp (section, "transport-tcp"))
1379 GNUNET_CONFIGURATION_set_value_string (ctx->ret, section,
1380 "ADVERTISED_PORT", value);
1383 if (0 == strcmp (option, "UNIXPATH"))
1386 GNUNET_CONFIGURATION_get_value_yesno (ctx->orig, "testing_old",
1389 GNUNET_snprintf (uval, sizeof (uval), "/tmp/test-service-%s-%u", section,
1393 else if ((GNUNET_YES ==
1394 GNUNET_CONFIGURATION_get_value_number (ctx->orig, "testing_old",
1400 GNUNET_snprintf (uval, sizeof (uval), "/tmp/test-service-%s-%u", section,
1401 ctx->fdnum % num_per_host);
1406 if ((0 == strcmp (option, "HOSTNAME")) && (ctx->hostname != NULL))
1408 value = ctx->hostname;
1410 GNUNET_free (single_variable);
1411 GNUNET_free (per_host_variable);
1412 GNUNET_CONFIGURATION_set_value_string (ctx->ret, section, option, value);
1416 * Create a new configuration using the given configuration
1417 * as a template; however, each PORT in the existing cfg
1418 * must be renumbered by incrementing "*port". If we run
1419 * out of "*port" numbers, return NULL.
1421 * @param cfg template configuration
1422 * @param off the current peer offset
1423 * @param port port numbers to use, update to reflect
1424 * port numbers that were used
1425 * @param upnum number to make unix domain socket names unique
1426 * @param hostname hostname of the controlling host, to allow control connections from
1427 * @param fdnum number used to offset the unix domain socket for grouped processes
1428 * (such as statistics or peerinfo, which can be shared among others)
1430 * @return new configuration, NULL on error
1432 struct GNUNET_CONFIGURATION_Handle *
1433 GNUNET_TESTING_create_cfg (const struct GNUNET_CONFIGURATION_Handle *cfg, uint32_t off,
1434 uint16_t * port, uint32_t * upnum, const char *hostname,
1437 struct UpdateContext uc;
1440 char *allowed_hosts;
1441 unsigned long long skew_variance;
1442 unsigned long long skew_offset;
1443 long long actual_offset;
1449 uc.ret = GNUNET_CONFIGURATION_create ();
1450 uc.hostname = hostname;
1453 GNUNET_CONFIGURATION_iterate (cfg, &update_config, &uc);
1454 if (uc.nport >= HIGH_PORT)
1457 GNUNET_CONFIGURATION_destroy (uc.ret);
1462 GNUNET_CONFIGURATION_get_value_number (cfg, "testing_old", "skew_variance",
1464 (skew_variance > 0))
1467 GNUNET_CRYPTO_random_u64 (GNUNET_CRYPTO_QUALITY_WEAK,
1470 skew_offset - GNUNET_CRYPTO_random_u64 (GNUNET_CRYPTO_QUALITY_WEAK,
1472 /* Min is -skew_variance, Max is skew_variance */
1473 skew_offset = skew_variance + actual_offset; /* Normal distribution around 0 */
1474 GNUNET_CONFIGURATION_set_value_number (uc.ret, "testing_old", "skew_offset",
1478 if (GNUNET_CONFIGURATION_get_value_string
1479 (cfg, "testing_old", "control_host", &control_host) == GNUNET_OK)
1481 if (hostname != NULL)
1482 GNUNET_asprintf (&allowed_hosts, "%s; 127.0.0.1; %s;", control_host,
1485 GNUNET_asprintf (&allowed_hosts, "%s; 127.0.0.1;", control_host);
1487 GNUNET_CONFIGURATION_set_value_string (uc.ret, "core", "ACCEPT_FROM",
1490 GNUNET_CONFIGURATION_set_value_string (uc.ret, "nse", "ACCEPT_FROM",
1493 GNUNET_CONFIGURATION_set_value_string (uc.ret, "transport", "ACCEPT_FROM",
1495 GNUNET_CONFIGURATION_set_value_string (uc.ret, "dht", "ACCEPT_FROM",
1497 GNUNET_CONFIGURATION_set_value_string (uc.ret, "statistics", "ACCEPT_FROM",
1500 GNUNET_CONFIGURATION_set_value_string (uc.ret, "core", "UNIXPATH", "");
1501 GNUNET_CONFIGURATION_set_value_string (uc.ret, "transport", "UNIXPATH", "");
1502 GNUNET_CONFIGURATION_set_value_string (uc.ret, "dht", "UNIXPATH", "");
1503 GNUNET_CONFIGURATION_set_value_string (uc.ret, "statistics", "UNIXPATH",
1505 GNUNET_CONFIGURATION_set_value_string (uc.ret, "nse", "UNIXPATH", "");
1507 GNUNET_CONFIGURATION_set_value_string (uc.ret, "nat",
1508 "USE_LOCALADDR", "YES");
1509 GNUNET_free_non_null (control_host);
1510 GNUNET_free (allowed_hosts);
1513 /* arm needs to know to allow connections from the host on which it is running,
1514 * otherwise gnunet-arm is unable to connect to it in some instances */
1515 if (hostname != NULL)
1517 GNUNET_asprintf (&allowed_hosts, "%s; 127.0.0.1;", hostname);
1518 GNUNET_CONFIGURATION_set_value_string (uc.ret, "nat", "BINDTO", hostname);
1519 GNUNET_CONFIGURATION_set_value_string (uc.ret, "nat", "INTERNAL_ADDRESS",
1521 GNUNET_CONFIGURATION_set_value_string (uc.ret, "nat", "EXTERNAL_ADDRESS",
1523 GNUNET_CONFIGURATION_set_value_string (uc.ret, "disablev6", "BINDTO",
1525 GNUNET_CONFIGURATION_set_value_string (uc.ret, "transport-tcp",
1526 "USE_LOCALADDR", "YES");
1527 GNUNET_CONFIGURATION_set_value_string (uc.ret, "transport-udp",
1528 "USE_LOCALADDR", "YES");
1529 GNUNET_CONFIGURATION_set_value_string (uc.ret, "arm", "ACCEPT_FROM",
1531 GNUNET_free (allowed_hosts);
1535 GNUNET_CONFIGURATION_set_value_string (uc.ret, "nat",
1536 "USE_LOCALADDR", "YES");
1537 GNUNET_CONFIGURATION_set_value_string (uc.ret, "nat", "BINDTO",
1539 GNUNET_CONFIGURATION_set_value_string (uc.ret, "nat", "INTERNAL_ADDRESS",
1541 GNUNET_CONFIGURATION_set_value_string (uc.ret, "nat", "EXTERNAL_ADDRESS",
1543 GNUNET_CONFIGURATION_set_value_string (uc.ret, "nat", "disablev6",
1547 *port = (uint16_t) uc.nport;
1555 * Remove entries from the peer connection list
1557 * @param pg the peer group we are working with
1558 * @param first index of the first peer
1559 * @param second index of the second peer
1560 * @param list the peer list to use
1561 * @param check UNUSED
1563 * @return the number of connections added (can be 0, 1 or 2)
1567 remove_connections (struct GNUNET_TESTING_PeerGroup *pg, unsigned int first,
1568 unsigned int second, enum PeerLists list,
1574 struct PeerConnection **first_list;
1575 struct PeerConnection **second_list;
1576 struct PeerConnection *first_iter;
1577 struct PeerConnection *second_iter;
1578 struct PeerConnection **first_tail;
1579 struct PeerConnection **second_tail;
1582 struct GNUNET_HashCode hash_first;
1583 struct GNUNET_HashCode hash_second;
1585 hash_from_uid (first, &hash_first);
1586 hash_from_uid (second, &hash_second);
1594 first_list = &pg->peers[first].allowed_peers_head;
1595 second_list = &pg->peers[second].allowed_peers_head;
1596 first_tail = &pg->peers[first].allowed_peers_tail;
1597 second_tail = &pg->peers[second].allowed_peers_tail;
1600 first_list = &pg->peers[first].connect_peers_head;
1601 second_list = &pg->peers[second].connect_peers_head;
1602 first_tail = &pg->peers[first].connect_peers_tail;
1603 second_tail = &pg->peers[second].connect_peers_tail;
1606 first_list = &pg->peers[first].blacklisted_peers_head;
1607 second_list = &pg->peers[second].blacklisted_peers_head;
1608 first_tail = &pg->peers[first].blacklisted_peers_tail;
1609 second_tail = &pg->peers[second].blacklisted_peers_tail;
1612 first_list = &pg->peers[first].connect_peers_working_set_head;
1613 second_list = &pg->peers[second].connect_peers_working_set_head;
1614 first_tail = &pg->peers[first].connect_peers_working_set_tail;
1615 second_tail = &pg->peers[second].connect_peers_working_set_tail;
1622 first_iter = *first_list;
1623 while (first_iter != NULL)
1625 if (first_iter->index == second)
1627 GNUNET_CONTAINER_DLL_remove (*first_list, *first_tail, first_iter);
1628 GNUNET_free (first_iter);
1632 first_iter = first_iter->next;
1635 second_iter = *second_list;
1636 while (second_iter != NULL)
1638 if (second_iter->index == first)
1640 GNUNET_CONTAINER_DLL_remove (*second_list, *second_tail, second_iter);
1641 GNUNET_free (second_iter);
1645 second_iter = second_iter->next;
1649 GNUNET_CONTAINER_multihashmap_contains (pg->
1650 peers[first].blacklisted_peers,
1653 GNUNET_CONTAINER_multihashmap_remove_all (pg->
1654 peers[first].blacklisted_peers,
1659 GNUNET_CONTAINER_multihashmap_contains (pg->
1660 peers[second].blacklisted_peers,
1663 GNUNET_CONTAINER_multihashmap_remove_all (pg->
1664 peers[second].blacklisted_peers,
1673 * Add entries to the some list
1675 * @param pg the peer group we are working with
1676 * @param first index of the first peer
1677 * @param second index of the second peer
1678 * @param list the list type that we should modify
1679 * @param check GNUNET_YES to check lists before adding
1680 * GNUNET_NO to force add
1682 * @return the number of connections added (can be 0, 1 or 2)
1686 add_connections (struct GNUNET_TESTING_PeerGroup *pg, unsigned int first,
1687 unsigned int second, enum PeerLists list, unsigned int check)
1693 struct PeerConnection **first_list;
1694 struct PeerConnection **second_list;
1695 struct PeerConnection *first_iter;
1696 struct PeerConnection *second_iter;
1697 struct PeerConnection *new_first;
1698 struct PeerConnection *new_second;
1699 struct PeerConnection **first_tail;
1700 struct PeerConnection **second_tail;
1705 first_list = &pg->peers[first].allowed_peers_head;
1706 second_list = &pg->peers[second].allowed_peers_head;
1707 first_tail = &pg->peers[first].allowed_peers_tail;
1708 second_tail = &pg->peers[second].allowed_peers_tail;
1711 first_list = &pg->peers[first].connect_peers_head;
1712 second_list = &pg->peers[second].connect_peers_head;
1713 first_tail = &pg->peers[first].connect_peers_tail;
1714 second_tail = &pg->peers[second].connect_peers_tail;
1717 first_list = &pg->peers[first].blacklisted_peers_head;
1718 second_list = &pg->peers[second].blacklisted_peers_head;
1719 first_tail = &pg->peers[first].blacklisted_peers_tail;
1720 second_tail = &pg->peers[second].blacklisted_peers_tail;
1723 first_list = &pg->peers[first].connect_peers_working_set_head;
1724 second_list = &pg->peers[second].connect_peers_working_set_head;
1725 first_tail = &pg->peers[first].connect_peers_working_set_tail;
1726 second_tail = &pg->peers[second].connect_peers_working_set_tail;
1733 add_first = GNUNET_YES;
1734 add_second = GNUNET_YES;
1736 if (check == GNUNET_YES)
1738 first_iter = *first_list;
1739 while (first_iter != NULL)
1741 if (first_iter->index == second)
1743 add_first = GNUNET_NO;
1746 first_iter = first_iter->next;
1749 second_iter = *second_list;
1750 while (second_iter != NULL)
1752 if (second_iter->index == first)
1754 add_second = GNUNET_NO;
1757 second_iter = second_iter->next;
1764 new_first = GNUNET_malloc (sizeof (struct PeerConnection));
1765 new_first->index = second;
1766 GNUNET_CONTAINER_DLL_insert (*first_list, *first_tail, new_first);
1767 pg->peers[first].num_connections++;
1773 new_second = GNUNET_malloc (sizeof (struct PeerConnection));
1774 new_second->index = first;
1775 GNUNET_CONTAINER_DLL_insert (*second_list, *second_tail, new_second);
1776 pg->peers[second].num_connections++;
1784 * Scale free network construction as described in:
1786 * "Emergence of Scaling in Random Networks." Science 286, 509-512, 1999.
1788 * Start with a network of "one" peer, then progressively add
1789 * peers up to the total number. At each step, iterate over
1790 * all possible peers and connect new peer based on number of
1791 * existing connections of the target peer.
1793 * @param pg the peer group we are dealing with
1794 * @param proc the connection processor to use
1795 * @param list the peer list to use
1797 * @return the number of connections created
1800 create_scale_free (struct GNUNET_TESTING_PeerGroup *pg,
1801 GNUNET_TESTING_ConnectionProcessor proc, enum PeerLists list)
1804 unsigned int total_connections;
1805 unsigned int outer_count;
1807 unsigned int previous_total_connections;
1811 GNUNET_assert (pg->total > 1);
1813 /* Add a connection between the first two nodes */
1814 total_connections = proc (pg, 0, 1, list, GNUNET_YES);
1816 for (outer_count = 1; outer_count < pg->total; outer_count++)
1818 previous_total_connections = total_connections;
1819 for (i = 0; i < outer_count; i++)
1822 pg->peers[i].num_connections / (double) previous_total_connections;
1825 GNUNET_CRYPTO_random_u64 (GNUNET_CRYPTO_QUALITY_WEAK,
1826 UINT64_MAX)) / ((double) UINT64_MAX);
1827 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1828 "Considering connecting peer %d to peer %d\n", outer_count,
1830 if (random < probability)
1832 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Connecting peer %d to peer %d\n",
1834 total_connections += proc (pg, outer_count, i, list, GNUNET_YES);
1839 return total_connections;
1843 * Create a topology given a peer group (set of running peers)
1844 * and a connection processor. Creates a small world topology
1845 * according to the rewired ring construction. The basic
1846 * behavior is that a ring topology is created, but with some
1847 * probability instead of connecting a peer to the next
1848 * neighbor in the ring a connection will be created to a peer
1849 * selected uniformly at random. We use the TESTING
1850 * PERCENTAGE option to specify what number of
1851 * connections each peer should have. Default is 2,
1852 * which makes the ring, any given number is multiplied by
1853 * the log of the network size; i.e. a PERCENTAGE of 2 makes
1854 * each peer have on average 2logn connections. The additional
1855 * connections are made at increasing distance around the ring
1856 * from the original peer, or to random peers based on the re-
1857 * wiring probability. The TESTING
1858 * PROBABILITY option is used as the probability that a given
1859 * connection is rewired.
1861 * @param pg the peergroup to create the topology on
1862 * @param proc the connection processor to call to actually set
1863 * up connections between two peers
1864 * @param list the peer list to use
1866 * @return the number of connections that were set up
1870 create_small_world_ring (struct GNUNET_TESTING_PeerGroup *pg,
1871 GNUNET_TESTING_ConnectionProcessor proc,
1872 enum PeerLists list)
1876 unsigned int natLog;
1877 unsigned int randomPeer;
1878 double random, logNModifier, probability;
1879 unsigned int smallWorldConnections;
1884 unsigned int useAnd;
1885 int connect_attempts;
1887 logNModifier = 0.5; /* FIXME: default value? */
1889 GNUNET_CONFIGURATION_get_value_string (pg->cfg, "TESTING_OLD", "PERCENTAGE",
1892 if (SSCANF (p_string, "%lf", &logNModifier) != 1)
1893 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
1895 ("Invalid value `%s' for option `%s' in section `%s': expected float\n"),
1896 p_string, "LOGNMODIFIER", "TESTING_OLD");
1897 GNUNET_free (p_string);
1899 probability = 0.5; /* FIXME: default percentage? */
1901 GNUNET_CONFIGURATION_get_value_string (pg->cfg, "TESTING_OLD", "PROBABILITY",
1904 if (SSCANF (p_string, "%lf", &probability) != 1)
1905 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
1907 ("Invalid value `%s' for option `%s' in section `%s': expected float\n"),
1908 p_string, "PERCENTAGE", "TESTING_OLD");
1909 GNUNET_free (p_string);
1911 natLog = log (pg->total);
1912 connsPerPeer = ceil (natLog * logNModifier);
1914 if (connsPerPeer % 2 == 1)
1917 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Target is %d connections per peer.",
1920 smallWorldConnections = 0;
1921 connect_attempts = 0;
1922 for (i = 0; i < pg->total; i++)
1925 max = i + connsPerPeer / 2;
1926 min = i - connsPerPeer / 2;
1928 if (max > pg->total - 1)
1930 max = max - pg->total;
1936 min = pg->total - 1 + min;
1940 for (j = 0; j < connsPerPeer / 2; j++)
1944 GNUNET_CRYPTO_random_u64 (GNUNET_CRYPTO_QUALITY_WEAK,
1945 UINT64_MAX) / ((double) UINT64_MAX));
1946 if (random < probability)
1948 /* Connect to uniformly selected random peer */
1950 GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK, pg->total);
1951 while ((((randomPeer < max) && (randomPeer > min)) && (useAnd == 0)) ||
1952 (((randomPeer > max) || (randomPeer < min)) && (useAnd == 1)))
1956 GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK, pg->total);
1958 smallWorldConnections += proc (pg, i, randomPeer, list, GNUNET_YES);
1962 nodeToConnect = i + j + 1;
1963 if (nodeToConnect > pg->total - 1)
1965 nodeToConnect = nodeToConnect - pg->total;
1967 connect_attempts += proc (pg, i, nodeToConnect, list, GNUNET_YES);
1973 connect_attempts += smallWorldConnections;
1975 return connect_attempts;
1979 * Create a topology given a peer group (set of running peers)
1980 * and a connection processor.
1982 * @param pg the peergroup to create the topology on
1983 * @param proc the connection processor to call to actually set
1984 * up connections between two peers
1985 * @param list the peer list to use
1987 * @return the number of connections that were set up
1991 create_nated_internet (struct GNUNET_TESTING_PeerGroup *pg,
1992 GNUNET_TESTING_ConnectionProcessor proc,
1993 enum PeerLists list)
1995 unsigned int outer_count, inner_count;
1996 unsigned int cutoff;
1997 int connect_attempts;
1998 double nat_percentage;
2001 nat_percentage = 0.6; /* FIXME: default percentage? */
2003 GNUNET_CONFIGURATION_get_value_string (pg->cfg, "TESTING_OLD", "PERCENTAGE",
2006 if (SSCANF (p_string, "%lf", &nat_percentage) != 1)
2007 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2009 ("Invalid value `%s' for option `%s' in section `%s': expected float\n"),
2010 p_string, "PERCENTAGE", "TESTING_OLD");
2011 GNUNET_free (p_string);
2014 cutoff = (unsigned int) (nat_percentage * pg->total);
2015 connect_attempts = 0;
2016 for (outer_count = 0; outer_count < pg->total - 1; outer_count++)
2018 for (inner_count = outer_count + 1; inner_count < pg->total; inner_count++)
2020 if ((outer_count > cutoff) || (inner_count > cutoff))
2022 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Connecting peer %d to peer %d\n",
2023 outer_count, inner_count);
2025 proc (pg, outer_count, inner_count, list, GNUNET_YES);
2029 return connect_attempts;
2034 * Create a topology given a peer group (set of running peers)
2035 * and a connection processor.
2037 * @param pg the peergroup to create the topology on
2038 * @param proc the connection processor to call to actually set
2039 * up connections between two peers
2040 * @param list the peer list to use
2042 * @return the number of connections that were set up
2046 create_nated_internet_copy (struct GNUNET_TESTING_PeerGroup *pg,
2047 GNUNET_TESTING_ConnectionProcessor proc,
2048 enum PeerLists list)
2050 unsigned int outer_count, inner_count;
2051 unsigned int cutoff;
2052 int connect_attempts;
2053 double nat_percentage;
2056 struct ProgressMeter *conn_meter;
2058 nat_percentage = 0.6; /* FIXME: default percentage? */
2060 GNUNET_CONFIGURATION_get_value_string (pg->cfg, "TESTING_OLD", "PERCENTAGE",
2063 if (SSCANF (p_string, "%lf", &nat_percentage) != 1)
2064 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2066 ("Invalid value `%s' for option `%s' in section `%s': expected float\n"),
2067 p_string, "PERCENTAGE", "TESTING_OLD");
2068 GNUNET_free (p_string);
2071 cutoff = (unsigned int) (nat_percentage * pg->total);
2073 for (outer_count = 0; outer_count < pg->total - 1; outer_count++)
2075 for (inner_count = outer_count + 1; inner_count < pg->total; inner_count++)
2077 if ((outer_count > cutoff) || (inner_count > cutoff))
2083 conn_meter = create_meter (count, "NAT COPY", GNUNET_YES);
2084 connect_attempts = 0;
2085 for (outer_count = 0; outer_count < pg->total - 1; outer_count++)
2087 for (inner_count = outer_count + 1; inner_count < pg->total; inner_count++)
2089 if ((outer_count > cutoff) || (inner_count > cutoff))
2091 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Connecting peer %d to peer %d\n",
2092 outer_count, inner_count);
2094 proc (pg, outer_count, inner_count, list, GNUNET_YES);
2095 add_connections (pg, outer_count, inner_count, ALLOWED, GNUNET_NO);
2096 update_meter (conn_meter);
2100 free_meter (conn_meter);
2102 return connect_attempts;
2107 * Create a topology given a peer group (set of running peers)
2108 * and a connection processor.
2110 * @param pg the peergroup to create the topology on
2111 * @param proc the connection processor to call to actually set
2112 * up connections between two peers
2113 * @param list the peer list to use
2115 * @return the number of connections that were set up
2119 create_small_world (struct GNUNET_TESTING_PeerGroup *pg,
2120 GNUNET_TESTING_ConnectionProcessor proc,
2121 enum PeerLists list)
2123 unsigned int i, j, k;
2124 unsigned int square;
2127 unsigned int toggle = 1;
2128 unsigned int nodeToConnect;
2129 unsigned int natLog;
2130 unsigned int node1Row;
2131 unsigned int node1Col;
2132 unsigned int node2Row;
2133 unsigned int node2Col;
2134 unsigned int distance;
2135 double probability, random, percentage;
2136 unsigned int smallWorldConnections;
2137 unsigned int small_world_it;
2139 int connect_attempts;
2141 square = floor (sqrt (pg->total));
2145 percentage = 0.5; /* FIXME: default percentage? */
2147 GNUNET_CONFIGURATION_get_value_string (pg->cfg, "TESTING_OLD", "PERCENTAGE",
2150 if (SSCANF (p_string, "%lf", &percentage) != 1)
2151 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2153 ("Invalid value `%s' for option `%s' in section `%s': expected float\n"),
2154 p_string, "PERCENTAGE", "TESTING_OLD");
2155 GNUNET_free (p_string);
2157 if (percentage < 0.0)
2159 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2161 ("Invalid value `%s' for option `%s' in section `%s': got %f, needed value greater than 0\n"),
2162 "PERCENTAGE", "TESTING_OLD", percentage);
2165 probability = 0.5; /* FIXME: default percentage? */
2167 GNUNET_CONFIGURATION_get_value_string (pg->cfg, "TESTING_OLD", "PROBABILITY",
2170 if (SSCANF (p_string, "%lf", &probability) != 1)
2171 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2173 ("Invalid value `%s' for option `%s' in section `%s': expected float\n"),
2174 p_string, "PROBABILITY", "TESTING_OLD");
2175 GNUNET_free (p_string);
2177 if (square * square != pg->total)
2179 while (rows * cols < pg->total)
2181 if (toggle % 2 == 0)
2189 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2190 "Connecting nodes in 2d torus topology: %u rows %u columns\n",
2192 connect_attempts = 0;
2193 /* Rows and columns are all sorted out, now iterate over all nodes and connect each
2194 * to the node to its right and above. Once this is over, we'll have our torus!
2195 * Special case for the last node (if the rows and columns are not equal), connect
2196 * to the first in the row to maintain topology.
2198 for (i = 0; i < pg->total; i++)
2200 /* First connect to the node to the right */
2201 if (((i + 1) % cols != 0) && (i + 1 != pg->total))
2202 nodeToConnect = i + 1;
2203 else if (i + 1 == pg->total)
2204 nodeToConnect = rows * cols - cols;
2206 nodeToConnect = i - cols + 1;
2208 connect_attempts += proc (pg, i, nodeToConnect, list, GNUNET_YES);
2212 nodeToConnect = (rows * cols) - cols + i;
2213 if (nodeToConnect >= pg->total)
2214 nodeToConnect -= cols;
2217 nodeToConnect = i - cols;
2219 if (nodeToConnect < pg->total)
2220 connect_attempts += proc (pg, i, nodeToConnect, list, GNUNET_YES);
2222 natLog = log (pg->total);
2223 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2224 "natural log of %d is %d, will run %d iterations\n", pg->total,
2225 natLog, (int) (natLog * percentage));
2226 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2227 "Total connections added thus far: %u!\n", connect_attempts);
2228 smallWorldConnections = 0;
2229 small_world_it = (unsigned int) (natLog * percentage);
2230 if (small_world_it < 1)
2232 GNUNET_assert (small_world_it > 0 && small_world_it < (unsigned int) -1);
2233 for (i = 0; i < small_world_it; i++)
2235 for (j = 0; j < pg->total; j++)
2237 /* Determine the row and column of node at position j on the 2d torus */
2238 node1Row = j / cols;
2239 node1Col = j - (node1Row * cols);
2240 for (k = 0; k < pg->total; k++)
2242 /* Determine the row and column of node at position k on the 2d torus */
2243 node2Row = k / cols;
2244 node2Col = k - (node2Row * cols);
2245 /* Simple Cartesian distance */
2246 distance = abs (node1Row - node2Row) + abs (node1Col - node2Col);
2249 /* Calculate probability as 1 over the square of the distance */
2250 probability = 1.0 / (distance * distance);
2251 /* Choose a random value between 0 and 1 */
2254 GNUNET_CRYPTO_random_u64 (GNUNET_CRYPTO_QUALITY_WEAK,
2255 UINT64_MAX)) / ((double) UINT64_MAX);
2256 /* If random < probability, then connect the two nodes */
2257 if (random < probability)
2258 smallWorldConnections += proc (pg, j, k, list, GNUNET_YES);
2264 connect_attempts += smallWorldConnections;
2265 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2266 "Total connections added for small world: %d!\n",
2267 smallWorldConnections);
2268 return connect_attempts;
2272 * Create a topology given a peer group (set of running peers)
2273 * and a connection processor.
2275 * @param pg the peergroup to create the topology on
2276 * @param proc the connection processor to call to actually set
2277 * up connections between two peers
2278 * @param list the peer list to use
2280 * @return the number of connections that were set up
2284 create_erdos_renyi (struct GNUNET_TESTING_PeerGroup *pg,
2285 GNUNET_TESTING_ConnectionProcessor proc,
2286 enum PeerLists list)
2289 unsigned int outer_count;
2290 unsigned int inner_count;
2291 int connect_attempts;
2295 probability = 0.5; /* FIXME: default percentage? */
2297 GNUNET_CONFIGURATION_get_value_string (pg->cfg, "TESTING_OLD", "PROBABILITY",
2300 if (SSCANF (p_string, "%lf", &probability) != 1)
2301 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2303 ("Invalid value `%s' for option `%s' in section `%s': expected float\n"),
2304 p_string, "PROBABILITY", "TESTING_OLD");
2305 GNUNET_free (p_string);
2307 connect_attempts = 0;
2308 for (outer_count = 0; outer_count < pg->total - 1; outer_count++)
2310 for (inner_count = outer_count + 1; inner_count < pg->total; inner_count++)
2314 GNUNET_CRYPTO_random_u64 (GNUNET_CRYPTO_QUALITY_WEAK,
2315 UINT64_MAX)) / ((double) UINT64_MAX);
2316 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "rand is %f probability is %f\n",
2317 temp_rand, probability);
2318 if (temp_rand < probability)
2321 proc (pg, outer_count, inner_count, list, GNUNET_YES);
2326 return connect_attempts;
2330 * Create a topology given a peer group (set of running peers)
2331 * and a connection processor. This particular function creates
2332 * the connections for a 2d-torus, plus additional "closest"
2333 * connections per peer.
2335 * @param pg the peergroup to create the topology on
2336 * @param proc the connection processor to call to actually set
2337 * up connections between two peers
2338 * @param list the peer list to use
2340 * @return the number of connections that were set up
2344 create_2d_torus (struct GNUNET_TESTING_PeerGroup *pg,
2345 GNUNET_TESTING_ConnectionProcessor proc, enum PeerLists list)
2348 unsigned int square;
2351 unsigned int toggle = 1;
2352 unsigned int nodeToConnect;
2353 int connect_attempts;
2355 connect_attempts = 0;
2357 square = floor (sqrt (pg->total));
2361 if (square * square != pg->total)
2363 while (rows * cols < pg->total)
2365 if (toggle % 2 == 0)
2373 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2374 "Connecting nodes in 2d torus topology: %u rows %u columns\n",
2376 /* Rows and columns are all sorted out, now iterate over all nodes and connect each
2377 * to the node to its right and above. Once this is over, we'll have our torus!
2378 * Special case for the last node (if the rows and columns are not equal), connect
2379 * to the first in the row to maintain topology.
2381 for (i = 0; i < pg->total; i++)
2383 /* First connect to the node to the right */
2384 if (((i + 1) % cols != 0) && (i + 1 != pg->total))
2385 nodeToConnect = i + 1;
2386 else if (i + 1 == pg->total)
2387 nodeToConnect = rows * cols - cols;
2389 nodeToConnect = i - cols + 1;
2390 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Connecting peer %d to peer %d\n", i,
2392 connect_attempts += proc (pg, i, nodeToConnect, list, GNUNET_YES);
2394 /* Second connect to the node immediately above */
2397 nodeToConnect = (rows * cols) - cols + i;
2398 if (nodeToConnect >= pg->total)
2399 nodeToConnect -= cols;
2402 nodeToConnect = i - cols;
2404 if (nodeToConnect < pg->total)
2406 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Connecting peer %d to peer %d\n", i,
2408 connect_attempts += proc (pg, i, nodeToConnect, list, GNUNET_YES);
2413 return connect_attempts;
2417 * Create a topology given a peer group (set of running peers)
2418 * and a connection processor.
2420 * @param pg the peergroup to create the topology on
2421 * @param proc the connection processor to call to actually set
2422 * up connections between two peers
2423 * @param list the peer list to use
2424 * @param check does the connection processor need to check before
2425 * performing an action on the list?
2427 * @return the number of connections that were set up
2431 create_clique (struct GNUNET_TESTING_PeerGroup *pg,
2432 GNUNET_TESTING_ConnectionProcessor proc, enum PeerLists list,
2435 unsigned int outer_count;
2436 unsigned int inner_count;
2437 int connect_attempts;
2438 struct ProgressMeter *conn_meter;
2440 connect_attempts = 0;
2443 create_meter ((((pg->total * pg->total) + pg->total) / 2) - pg->total,
2444 "Create Clique ", GNUNET_NO);
2445 for (outer_count = 0; outer_count < pg->total - 1; outer_count++)
2447 for (inner_count = outer_count + 1; inner_count < pg->total; inner_count++)
2449 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Connecting peer %d to peer %d\n",
2450 outer_count, inner_count);
2451 connect_attempts += proc (pg, outer_count, inner_count, list, check);
2452 update_meter (conn_meter);
2455 reset_meter (conn_meter);
2456 free_meter (conn_meter);
2457 return connect_attempts;
2462 * Iterator over hash map entries.
2464 * @param cls closure the peer group
2465 * @param key the key stored in the hashmap is the
2466 * index of the peer to connect to
2467 * @param value value in the hash map, handle to the peer daemon
2468 * @return GNUNET_YES if we should continue to
2473 unblacklist_iterator (void *cls, const struct GNUNET_HashCode * key, void *value)
2475 struct UnblacklistContext *un_ctx = cls;
2476 uint32_t second_pos;
2478 uid_from_hash (key, &second_pos);
2480 unblacklist_connections (un_ctx->pg, un_ctx->first_uid, second_pos);
2488 * Create a blacklist topology based on the allowed topology
2489 * which disallows any connections not in the allowed topology
2490 * at the transport level.
2492 * @param pg the peergroup to create the topology on
2493 * @param proc the connection processor to call to allow
2494 * up connections between two peers
2496 * @return the number of connections that were set up
2500 copy_allowed (struct GNUNET_TESTING_PeerGroup *pg,
2501 GNUNET_TESTING_ConnectionProcessor proc)
2505 struct PeerConnection *iter;
2508 struct UnblacklistContext un_ctx;
2513 for (count = 0; count < pg->total - 1; count++)
2516 iter = pg->peers[count].allowed_peers_head;
2517 while (iter != NULL)
2519 remove_connections (pg, count, iter->index, BLACKLIST, GNUNET_YES);
2520 //unblacklist_connections(pg, count, iter->index);
2524 un_ctx.first_uid = count;
2526 GNUNET_CONTAINER_multihashmap_iterate (pg->peers[count].allowed_peers,
2527 &unblacklist_iterator, &un_ctx);
2530 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Unblacklisted %u peers\n", total);
2536 * Create a topology given a peer group (set of running peers)
2537 * and a connection processor.
2539 * @param pg the peergroup to create the topology on
2540 * @param proc the connection processor to call to actually set
2541 * up connections between two peers
2542 * @param list which list should be modified
2544 * @return the number of connections that were set up
2548 create_line (struct GNUNET_TESTING_PeerGroup *pg,
2549 GNUNET_TESTING_ConnectionProcessor proc, enum PeerLists list)
2552 unsigned int connect_attempts;
2554 connect_attempts = 0;
2555 /* Connect each peer to the next highest numbered peer */
2556 for (count = 0; count < pg->total - 1; count++)
2558 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Connecting peer %d to peer %d\n",
2560 connect_attempts += proc (pg, count, count + 1, list, GNUNET_YES);
2563 return connect_attempts;
2567 * Create a topology given a peer group (set of running peers)
2568 * and a connection processor.
2570 * @param pg the peergroup to create the topology on
2571 * @param filename the file to read topology information from
2572 * @param proc the connection processor to call to actually set
2573 * up connections between two peers
2574 * @param list the peer list to use
2576 * @return the number of connections that were set up
2580 create_from_file (struct GNUNET_TESTING_PeerGroup *pg, char *filename,
2581 GNUNET_TESTING_ConnectionProcessor proc, enum PeerLists list)
2583 int connect_attempts;
2584 unsigned int first_peer_index;
2585 unsigned int second_peer_index;
2590 unsigned int total_peers;
2591 enum States curr_state;
2593 connect_attempts = 0;
2594 if (GNUNET_OK != GNUNET_DISK_file_test (filename))
2595 GNUNET_DISK_fn_write (filename, NULL, 0, GNUNET_DISK_PERM_USER_READ);
2597 if ((0 != STAT (filename, &frstat)) || (frstat.st_size == 0))
2599 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
2600 "Could not open file `%s' specified for topology!", filename);
2601 return connect_attempts;
2604 data = GNUNET_malloc_large (frstat.st_size);
2605 GNUNET_assert (data != NULL);
2606 if (frstat.st_size != GNUNET_DISK_fn_read (filename, data, frstat.st_size))
2608 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
2609 "Could not read file %s specified for host list, ending test!",
2612 return connect_attempts;
2617 first_peer_index = 0;
2618 /* First line should contain a single integer, specifying the number of peers */
2619 /* Each subsequent line should contain this format PEER_INDEX:OTHER_PEER_INDEX[,...] */
2620 curr_state = NUM_PEERS;
2621 while (count < frstat.st_size - 1)
2623 if ((buf[count] == '\n') || (buf[count] == ' '))
2633 total_peers = strtoul (&buf[count], NULL, 10);
2636 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2637 "Failed to read number of peers from topology file!\n");
2639 return connect_attempts;
2641 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Found %u total peers in topology\n",
2643 GNUNET_assert (total_peers == pg->total);
2644 curr_state = PEER_INDEX;
2645 while ((buf[count] != '\n') && (count < frstat.st_size - 1))
2651 first_peer_index = strtoul (&buf[count], NULL, 10);
2654 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2655 "Failed to read peer index from topology file!\n");
2657 return connect_attempts;
2659 while ((buf[count] != ':') && (count < frstat.st_size - 1))
2662 curr_state = OTHER_PEER_INDEX;
2665 if (1 == sscanf (&buf[count], ":"))
2666 curr_state = OTHER_PEER_INDEX;
2669 case OTHER_PEER_INDEX:
2671 second_peer_index = strtoul (&buf[count], NULL, 10);
2674 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2675 "Failed to peer index from topology file!\n");
2677 return connect_attempts;
2679 /* Assume file is written with first peer 1, but array index is 0 */
2681 proc (pg, first_peer_index - 1, second_peer_index - 1, list,
2683 while ((buf[count] != '\n') && (buf[count] != ',') &&
2684 (count < frstat.st_size - 1))
2686 if (buf[count] == '\n')
2688 curr_state = PEER_INDEX;
2690 else if (buf[count] != ',')
2692 curr_state = OTHER_PEER_INDEX;
2697 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
2698 "Found bad data in topology file while in state %d!\n",
2702 return connect_attempts;
2706 return connect_attempts;
2710 * Create a topology given a peer group (set of running peers)
2711 * and a connection processor.
2713 * @param pg the peergroup to create the topology on
2714 * @param proc the connection processor to call to actually set
2715 * up connections between two peers
2716 * @param list the peer list to use
2718 * @return the number of connections that were set up
2722 create_ring (struct GNUNET_TESTING_PeerGroup *pg,
2723 GNUNET_TESTING_ConnectionProcessor proc, enum PeerLists list)
2726 int connect_attempts;
2728 connect_attempts = 0;
2730 /* Connect each peer to the next highest numbered peer */
2731 for (count = 0; count < pg->total - 1; count++)
2733 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Connecting peer %d to peer %d\n",
2735 connect_attempts += proc (pg, count, count + 1, list, GNUNET_YES);
2738 /* Connect the last peer to the first peer */
2739 connect_attempts += proc (pg, pg->total - 1, 0, list, GNUNET_YES);
2741 return connect_attempts;
2746 * Iterator for writing friends of a peer to a file.
2748 * @param cls closure, an open writable file handle
2749 * @param key the key the daemon was stored under
2750 * @param value the GNUNET_TESTING_Daemon that needs to be written.
2752 * @return GNUNET_YES to continue iteration
2754 * TODO: Could replace friend_file_iterator and blacklist_file_iterator
2755 * with a single file_iterator that takes a closure which contains
2756 * the prefix to write before the peer. Then this could be used
2757 * for blacklisting multiple transports and writing the friend
2758 * file. I'm sure *someone* will complain loudly about other
2759 * things that negate these functions even existing so no point in
2763 friend_file_iterator (void *cls, const struct GNUNET_HashCode * key, void *value)
2765 FILE *temp_friend_handle = cls;
2766 struct GNUNET_TESTING_Daemon *peer = value;
2767 struct GNUNET_PeerIdentity *temppeer;
2768 struct GNUNET_CRYPTO_HashAsciiEncoded peer_enc;
2770 temppeer = &peer->id;
2771 GNUNET_CRYPTO_hash_to_enc (&temppeer->hashPubKey, &peer_enc);
2772 FPRINTF (temp_friend_handle, "%s\n", (char *) &peer_enc);
2777 struct BlacklistContext
2780 * The (open) file handle to write to
2782 FILE *temp_file_handle;
2785 * The transport that this peer will be blacklisted on.
2791 * Iterator for writing blacklist data to appropriate files.
2793 * @param cls closure, an open writable file handle
2794 * @param key the key the daemon was stored under
2795 * @param value the GNUNET_TESTING_Daemon that needs to be written.
2797 * @return GNUNET_YES to continue iteration
2800 blacklist_file_iterator (void *cls, const struct GNUNET_HashCode * key, void *value)
2802 struct BlacklistContext *blacklist_ctx = cls;
2803 struct GNUNET_TESTING_Daemon *peer = value;
2804 struct GNUNET_PeerIdentity *temppeer;
2805 struct GNUNET_CRYPTO_HashAsciiEncoded peer_enc;
2807 temppeer = &peer->id;
2808 GNUNET_CRYPTO_hash_to_enc (&temppeer->hashPubKey, &peer_enc);
2809 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Writing entry %s:%s to file\n",
2810 blacklist_ctx->transport, (char *) &peer_enc);
2811 FPRINTF (blacklist_ctx->temp_file_handle, "%s:%s\n", blacklist_ctx->transport,
2812 (char *) &peer_enc);
2819 * Create the friend files based on the PeerConnection's
2820 * of each peer in the peer group, and copy the files
2821 * to the appropriate place
2823 * @param pg the peer group we are dealing with
2826 create_and_copy_friend_files (struct GNUNET_TESTING_PeerGroup *pg)
2828 FILE *temp_friend_handle;
2829 unsigned int pg_iter;
2830 char *temp_service_path;
2831 struct GNUNET_OS_Process **procarr;
2836 enum GNUNET_OS_ProcessStatusType type;
2837 unsigned long return_code;
2845 struct GNUNET_CRYPTO_HashAsciiEncoded peer_enc;
2846 struct PeerConnection *conn_iter;
2848 procarr = GNUNET_malloc (sizeof (struct GNUNET_OS_Process *) * pg->total);
2849 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
2851 mytemp = GNUNET_DISK_mktemp ("friends");
2852 GNUNET_assert (mytemp != NULL);
2853 temp_friend_handle = FOPEN (mytemp, "wt");
2854 GNUNET_assert (temp_friend_handle != NULL);
2856 conn_iter = pg->peers[pg_iter].allowed_peers_head;
2857 while (conn_iter != NULL)
2859 GNUNET_CRYPTO_hash_to_enc (&pg->peers[conn_iter->index].daemon->
2860 id.hashPubKey, &peer_enc);
2861 FPRINTF (temp_friend_handle, "%s\n", (char *) &peer_enc);
2862 conn_iter = conn_iter->next;
2865 GNUNET_CONTAINER_multihashmap_iterate (pg->peers[pg_iter].allowed_peers,
2866 &friend_file_iterator,
2867 temp_friend_handle);
2869 FCLOSE (temp_friend_handle);
2872 GNUNET_CONFIGURATION_get_value_string (pg->peers[pg_iter].daemon->cfg,
2873 "PATHS", "SERVICEHOME",
2874 &temp_service_path))
2876 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2878 ("No `%s' specified in peer configuration in section `%s', cannot copy friends file!\n"),
2879 "SERVICEHOME", "PATHS");
2880 if (UNLINK (mytemp) != 0)
2881 GNUNET_log_strerror_file (GNUNET_ERROR_TYPE_WARNING, "unlink", mytemp);
2882 GNUNET_free (mytemp);
2886 if (pg->peers[pg_iter].daemon->hostname == NULL) /* Local, just copy the file */
2888 GNUNET_asprintf (&arg, "%s/friends", temp_service_path);
2889 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2890 "Copying file with RENAME(%s,%s)\n", mytemp, arg);
2891 RENAME (mytemp, arg);
2892 procarr[pg_iter] = NULL;
2895 else /* Remote, scp the file to the correct place */
2897 if (NULL != pg->peers[pg_iter].daemon->username)
2898 GNUNET_asprintf (&arg, "%s@%s:%s/friends",
2899 pg->peers[pg_iter].daemon->username,
2900 pg->peers[pg_iter].daemon->hostname,
2903 GNUNET_asprintf (&arg, "%s:%s/friends",
2904 pg->peers[pg_iter].daemon->hostname,
2907 GNUNET_OS_start_process (GNUNET_NO, NULL, NULL, "scp", "scp", mytemp, arg, NULL);
2908 GNUNET_assert (procarr[pg_iter] != NULL);
2909 ret = GNUNET_OS_process_wait (procarr[pg_iter]); /* FIXME: schedule this, throttle! */
2910 GNUNET_OS_process_destroy (procarr[pg_iter]);
2911 if (ret != GNUNET_OK)
2913 /* FIXME: free contents of 'procarr' array */
2914 GNUNET_free (procarr);
2915 GNUNET_free (temp_service_path);
2916 GNUNET_free (mytemp);
2920 procarr[pg_iter] = NULL;
2921 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2922 "Copying file with command scp %s %s\n", mytemp, arg);
2925 GNUNET_free (temp_service_path);
2926 GNUNET_free (mytemp);
2931 ret = GNUNET_SYSERR;
2932 while ((count < max_wait) && (ret != GNUNET_OK))
2935 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
2937 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Checking copy status of file %d\n",
2939 if (procarr[pg_iter] != NULL) /* Check for already completed! */
2941 if (GNUNET_OS_process_status (procarr[pg_iter], &type, &return_code) !=
2944 ret = GNUNET_SYSERR;
2946 else if ((type != GNUNET_OS_PROCESS_EXITED) || (return_code != 0))
2948 ret = GNUNET_SYSERR;
2952 GNUNET_OS_process_destroy (procarr[pg_iter]);
2953 procarr[pg_iter] = NULL;
2954 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "File %d copied\n", pg_iter);
2959 if (ret == GNUNET_SYSERR)
2961 /* FIXME: why sleep here? -CG */
2966 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2967 "Finished copying all friend files!\n");
2969 GNUNET_free (procarr);
2974 * Create the blacklist files based on the PeerConnection's
2975 * of each peer in the peer group, and copy the files
2976 * to the appropriate place.
2978 * @param pg the peer group we are dealing with
2979 * @param transports space delimited list of transports to blacklist
2982 create_and_copy_blacklist_files (struct GNUNET_TESTING_PeerGroup *pg,
2983 const char *transports)
2985 FILE *temp_file_handle;
2986 unsigned int pg_iter;
2987 char *temp_service_path;
2988 struct GNUNET_OS_Process **procarr;
2991 enum GNUNET_OS_ProcessStatusType type;
2992 unsigned long return_code;
2999 char *temp_transports;
3002 struct GNUNET_CRYPTO_HashAsciiEncoded peer_enc;
3003 struct PeerConnection *conn_iter;
3005 static struct BlacklistContext blacklist_ctx;
3008 procarr = GNUNET_malloc (sizeof (struct GNUNET_OS_Process *) * pg->total);
3009 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
3011 mytemp = GNUNET_DISK_mktemp ("blacklist");
3012 GNUNET_assert (mytemp != NULL);
3013 temp_file_handle = FOPEN (mytemp, "wt");
3014 GNUNET_assert (temp_file_handle != NULL);
3015 temp_transports = GNUNET_strdup (transports);
3017 blacklist_ctx.temp_file_handle = temp_file_handle;
3019 transport_len = strlen (temp_transports) + 1;
3022 for (i = 0; i < transport_len; i++)
3024 if ((temp_transports[i] == ' ') && (pos == NULL))
3025 continue; /* At start of string (whitespace) */
3026 else if ((temp_transports[i] == ' ') || (temp_transports[i] == '\0')) /* At end of string */
3028 temp_transports[i] = '\0';
3030 conn_iter = pg->peers[pg_iter].blacklisted_peers_head;
3031 while (conn_iter != NULL)
3033 GNUNET_CRYPTO_hash_to_enc (&pg->peers[conn_iter->index].daemon->
3034 id.hashPubKey, &peer_enc);
3035 FPRINTF (temp_file_handle, "%s:%s\n", pos, (char *) &peer_enc);
3036 conn_iter = conn_iter->next;
3039 blacklist_ctx.transport = pos;
3040 (void) GNUNET_CONTAINER_multihashmap_iterate (pg->
3042 [pg_iter].blacklisted_peers,
3043 &blacklist_file_iterator,
3047 } /* At beginning of actual string */
3048 else if (pos == NULL)
3050 pos = &temp_transports[i];
3054 GNUNET_free (temp_transports);
3055 FCLOSE (temp_file_handle);
3058 GNUNET_CONFIGURATION_get_value_string (pg->peers[pg_iter].daemon->cfg,
3059 "PATHS", "SERVICEHOME",
3060 &temp_service_path))
3062 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
3064 ("No `%s' specified in peer configuration in section `%s', cannot copy friends file!\n"),
3065 "SERVICEHOME", "PATHS");
3066 if (UNLINK (mytemp) != 0)
3067 GNUNET_log_strerror_file (GNUNET_ERROR_TYPE_WARNING, "unlink", mytemp);
3068 GNUNET_free (mytemp);
3072 if (pg->peers[pg_iter].daemon->hostname == NULL) /* Local, just copy the file */
3074 GNUNET_asprintf (&arg, "%s/blacklist", temp_service_path);
3075 RENAME (mytemp, arg);
3076 procarr[pg_iter] = NULL;
3077 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
3078 "Copying file with RENAME (%s,%s)\n", mytemp, arg);
3081 else /* Remote, scp the file to the correct place */
3083 if (NULL != pg->peers[pg_iter].daemon->username)
3084 GNUNET_asprintf (&arg, "%s@%s:%s/blacklist",
3085 pg->peers[pg_iter].daemon->username,
3086 pg->peers[pg_iter].daemon->hostname,
3089 GNUNET_asprintf (&arg, "%s:%s/blacklist",
3090 pg->peers[pg_iter].daemon->hostname,
3093 GNUNET_OS_start_process (GNUNET_NO, NULL, NULL, "scp", "scp", mytemp, arg, NULL);
3094 GNUNET_assert (procarr[pg_iter] != NULL);
3095 GNUNET_OS_process_wait (procarr[pg_iter]); /* FIXME: add scheduled blacklist file copy that parallelizes file copying! */
3097 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
3098 "Copying file with command scp %s %s\n", mytemp, arg);
3101 GNUNET_free (temp_service_path);
3102 GNUNET_free (mytemp);
3106 ret = GNUNET_SYSERR;
3107 while ((count < max_wait) && (ret != GNUNET_OK))
3110 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
3112 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
3113 "Checking copy status of file %d\n", pg_iter);
3114 if (procarr[pg_iter] != NULL) /* Check for already completed! */
3116 if (GNUNET_OS_process_status (procarr[pg_iter], &type, &return_code) !=
3119 ret = GNUNET_SYSERR;
3121 else if ((type != GNUNET_OS_PROCESS_EXITED) || (return_code != 0))
3123 ret = GNUNET_SYSERR;
3127 GNUNET_OS_process_destroy (procarr[pg_iter]);
3128 procarr[pg_iter] = NULL;
3129 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "File %d copied\n", pg_iter);
3134 if (ret == GNUNET_SYSERR)
3136 /* FIXME: why sleep here? -CG */
3141 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
3142 "Finished copying all blacklist files!\n");
3143 GNUNET_free (procarr);
3147 /* Forward Declaration */
3149 schedule_connect (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc);
3152 * Choose a random peer's next connection to create, and
3153 * call schedule_connect to set up the connect task.
3155 * @param pg the peer group to connect
3158 preschedule_connect (struct GNUNET_TESTING_PeerGroup *pg)
3160 struct ConnectTopologyContext *ct_ctx = &pg->ct_ctx;
3161 struct PeerConnection *connection_iter;
3162 struct ConnectContext *connect_context;
3163 uint32_t random_peer;
3165 if (ct_ctx->remaining_connections == 0)
3168 GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK, pg->total);
3169 while (pg->peers[random_peer].connect_peers_head == NULL)
3171 GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK, pg->total);
3173 connection_iter = pg->peers[random_peer].connect_peers_head;
3174 connect_context = GNUNET_malloc (sizeof (struct ConnectContext));
3175 connect_context->first_index = random_peer;
3176 connect_context->second_index = connection_iter->index;
3177 connect_context->ct_ctx = ct_ctx;
3178 connect_context->task =
3179 GNUNET_SCHEDULER_add_now (&schedule_connect, connect_context);
3180 GNUNET_CONTAINER_DLL_insert (pg->cc_head, pg->cc_tail, connect_context);
3181 GNUNET_CONTAINER_DLL_remove (pg->peers[random_peer].connect_peers_head,
3182 pg->peers[random_peer].connect_peers_tail,
3184 GNUNET_free (connection_iter);
3185 ct_ctx->remaining_connections--;
3189 /* Forward declaration */
3191 schedule_send_hellos (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc);
3194 * Close connections and free the hello context.
3196 * @param cls the 'struct SendHelloContext *'
3197 * @param tc scheduler context
3200 free_hello_context (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
3202 struct SendHelloContext *send_hello_context = cls;
3204 if (send_hello_context->peer->daemon->server != NULL)
3206 GNUNET_CORE_disconnect (send_hello_context->peer->daemon->server);
3207 send_hello_context->peer->daemon->server = NULL;
3209 if (send_hello_context->peer->daemon->th != NULL)
3211 GNUNET_TRANSPORT_disconnect (send_hello_context->peer->daemon->th);
3212 send_hello_context->peer->daemon->th = NULL;
3214 if (send_hello_context->core_connect_task != GNUNET_SCHEDULER_NO_TASK)
3216 GNUNET_SCHEDULER_cancel (send_hello_context->core_connect_task);
3217 send_hello_context->core_connect_task = GNUNET_SCHEDULER_NO_TASK;
3219 send_hello_context->pg->outstanding_connects--;
3220 GNUNET_free (send_hello_context);
3224 * For peers that haven't yet connected, notify
3225 * the caller that they have failed (timeout).
3227 * @param cls the 'struct SendHelloContext *'
3228 * @param tc scheduler context
3231 notify_remaining_connections_failed (void *cls,
3232 const struct GNUNET_SCHEDULER_TaskContext
3235 struct SendHelloContext *send_hello_context = cls;
3236 struct GNUNET_TESTING_PeerGroup *pg = send_hello_context->pg;
3237 struct PeerConnection *connection;
3239 GNUNET_CORE_disconnect (send_hello_context->peer->daemon->server);
3240 send_hello_context->peer->daemon->server = NULL;
3242 connection = send_hello_context->peer->connect_peers_head;
3244 while (connection != NULL)
3246 if (pg->notify_connection != NULL)
3248 pg->notify_connection (pg->notify_connection_cls, &send_hello_context->peer->daemon->id, &pg->peers[connection->index].daemon->id, 0, /* FIXME */
3249 send_hello_context->peer->daemon->cfg,
3250 pg->peers[connection->index].daemon->cfg,
3251 send_hello_context->peer->daemon,
3252 pg->peers[connection->index].daemon,
3253 "Peers failed to connect (timeout)");
3255 GNUNET_CONTAINER_DLL_remove (send_hello_context->peer->connect_peers_head,
3256 send_hello_context->peer->connect_peers_tail,
3258 GNUNET_free (connection);
3259 connection = connection->next;
3261 GNUNET_SCHEDULER_add_now (&free_hello_context, send_hello_context);
3263 other_peer = &pg->peers[connection->index];
3268 * For peers that haven't yet connected, send
3269 * CORE connect requests.
3271 * @param cls the 'struct SendHelloContext *'
3272 * @param tc scheduler context
3275 send_core_connect_requests (void *cls,
3276 const struct GNUNET_SCHEDULER_TaskContext *tc)
3278 struct SendHelloContext *send_hello_context = cls;
3279 struct PeerConnection *conn;
3281 GNUNET_assert (send_hello_context->peer->daemon->server != NULL);
3283 send_hello_context->core_connect_task = GNUNET_SCHEDULER_NO_TASK;
3285 send_hello_context->connect_attempts++;
3286 if (send_hello_context->connect_attempts <
3287 send_hello_context->pg->ct_ctx.connect_attempts)
3289 conn = send_hello_context->peer->connect_peers_head;
3290 while (conn != NULL)
3292 GNUNET_TRANSPORT_try_connect (send_hello_context->peer->daemon->th,
3293 &send_hello_context->pg->peers[conn->
3298 send_hello_context->core_connect_task =
3299 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_divide
3300 (send_hello_context->pg->
3301 ct_ctx.connect_timeout,
3302 send_hello_context->pg->
3303 ct_ctx.connect_attempts),
3304 &send_core_connect_requests,
3305 send_hello_context);
3309 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
3310 "Timeout before all connections created, marking rest as failed!\n");
3311 GNUNET_SCHEDULER_add_now (¬ify_remaining_connections_failed,
3312 send_hello_context);
3318 * Success, connection is up. Signal client our success.
3320 * @param cls our "struct SendHelloContext"
3321 * @param peer identity of the peer that has connected
3322 * @param atsi performance information
3324 * FIXME: remove peers from BOTH lists, call notify twice, should
3325 * double the speed of connections as long as the list iteration
3326 * doesn't take too long!
3329 core_connect_notify (void *cls, const struct GNUNET_PeerIdentity *peer,
3330 const struct GNUNET_ATS_Information *atsi)
3332 struct SendHelloContext *send_hello_context = cls;
3333 struct PeerConnection *connection;
3334 struct GNUNET_TESTING_PeerGroup *pg = send_hello_context->pg;
3337 struct PeerData *other_peer;
3339 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Connected peer %s to peer %s\n",
3340 ctx->d1->shortname, GNUNET_i2s (peer));
3342 memcmp (&send_hello_context->peer->daemon->id, peer,
3343 sizeof (struct GNUNET_PeerIdentity)))
3346 connection = send_hello_context->peer->connect_peers_head;
3351 while ((connection != NULL) &&
3353 memcmp (&pg->peers[connection->index].daemon->id, peer,
3354 sizeof (struct GNUNET_PeerIdentity))))
3356 connection = connection->next;
3359 if (connection == NULL)
3361 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
3362 "Connected peer %s to %s, not in list (no problem(?))\n",
3363 GNUNET_i2s (peer), send_hello_context->peer->daemon->shortname);
3368 other_peer = &pg->peers[connection->index];
3370 if (pg->notify_connection != NULL)
3372 pg->notify_connection (pg->notify_connection_cls, &send_hello_context->peer->daemon->id, peer, 0, /* FIXME */
3373 send_hello_context->peer->daemon->cfg,
3374 pg->peers[connection->index].daemon->cfg,
3375 send_hello_context->peer->daemon,
3376 pg->peers[connection->index].daemon, NULL);
3378 GNUNET_CONTAINER_DLL_remove (send_hello_context->peer->connect_peers_head,
3379 send_hello_context->peer->connect_peers_tail,
3381 GNUNET_free (connection);
3385 /* Notify of reverse connection and remove from other peers list of outstanding */
3386 if (other_peer != NULL)
3388 connection = other_peer->connect_peers_head;
3389 while ((connection != NULL) &&
3391 memcmp (&send_hello_context->peer->daemon->id,
3392 &pg->peers[connection->index].daemon->id,
3393 sizeof (struct GNUNET_PeerIdentity))))
3395 connection = connection->next;
3397 if (connection != NULL)
3399 if (pg->notify_connection != NULL)
3401 pg->notify_connection (pg->notify_connection_cls, peer, &send_hello_context->peer->daemon->id, 0, /* FIXME */
3402 pg->peers[connection->index].daemon->cfg,
3403 send_hello_context->peer->daemon->cfg,
3404 pg->peers[connection->index].daemon,
3405 send_hello_context->peer->daemon, NULL);
3408 GNUNET_CONTAINER_DLL_remove (other_peer->connect_peers_head,
3409 other_peer->connect_peers_tail, connection);
3410 GNUNET_free (connection);
3415 if (send_hello_context->peer->connect_peers_head == NULL)
3417 GNUNET_SCHEDULER_add_now (&free_hello_context, send_hello_context);
3422 * Notify of a successful connection to the core service.
3424 * @param cls a struct SendHelloContext *
3425 * @param server handle to the core service
3426 * @param my_identity the peer identity of this peer
3429 core_init (void *cls, struct GNUNET_CORE_Handle *server,
3430 struct GNUNET_PeerIdentity *my_identity)
3432 struct SendHelloContext *send_hello_context = cls;
3434 send_hello_context->core_ready = GNUNET_YES;
3438 * Function called once a hello has been sent
3439 * to the transport, move on to the next one
3440 * or go away forever.
3442 * @param cls the 'struct SendHelloContext *'
3443 * @param tc scheduler context
3446 hello_sent_callback (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
3448 struct SendHelloContext *send_hello_context = cls;
3450 //unsigned int pg_iter;
3451 if ((tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN) != 0)
3453 GNUNET_free (send_hello_context);
3457 send_hello_context->pg->remaining_hellos--;
3458 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Sent HELLO, have %d remaining!\n",
3459 send_hello_context->pg->remaining_hellos);
3460 if (send_hello_context->peer_pos == NULL) /* All HELLOs (for this peer!) have been transmitted! */
3462 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
3463 "All hellos for this peer sent, disconnecting transport!\n");
3464 GNUNET_assert (send_hello_context->peer->daemon->th != NULL);
3465 GNUNET_TRANSPORT_disconnect (send_hello_context->peer->daemon->th);
3466 send_hello_context->peer->daemon->th = NULL;
3467 GNUNET_assert (send_hello_context->peer->daemon->server == NULL);
3468 send_hello_context->peer->daemon->server =
3469 GNUNET_CORE_connect (send_hello_context->peer->cfg, 1,
3470 send_hello_context, &core_init,
3471 &core_connect_notify, NULL, NULL, NULL, GNUNET_NO,
3472 NULL, GNUNET_NO, no_handlers);
3474 send_hello_context->core_connect_task =
3475 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_divide
3476 (send_hello_context->pg->
3477 ct_ctx.connect_timeout,
3478 send_hello_context->pg->
3479 ct_ctx.connect_attempts),
3480 &send_core_connect_requests,
3481 send_hello_context);
3484 GNUNET_SCHEDULER_add_now (&schedule_send_hellos, send_hello_context);
3488 * Connect to a peer, give it all the HELLO's of those peers
3489 * we will later ask it to connect to.
3491 * @param ct_ctx the overall connection context
3494 schedule_send_hellos (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
3496 struct SendHelloContext *send_hello_context = cls;
3497 struct GNUNET_TESTING_PeerGroup *pg = send_hello_context->pg;
3499 if ((tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN) != 0)
3501 GNUNET_free (send_hello_context);
3505 GNUNET_assert (send_hello_context->peer_pos != NULL); /* All of the HELLO sends to be scheduled have been scheduled! */
3507 if (((send_hello_context->peer->daemon->th == NULL) &&
3508 (pg->outstanding_connects > pg->max_outstanding_connections)) ||
3509 (pg->stop_connects == GNUNET_YES))
3511 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
3512 "Delaying connect, we have too many outstanding connections!\n");
3513 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply
3514 (GNUNET_TIME_UNIT_MILLISECONDS, 100),
3515 &schedule_send_hellos, send_hello_context);
3519 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
3520 "Creating connection, outstanding_connections is %d\n",
3521 outstanding_connects);
3522 if (send_hello_context->peer->daemon->th == NULL)
3524 pg->outstanding_connects++; /* Actual TRANSPORT, CORE connections! */
3525 send_hello_context->peer->daemon->th =
3526 GNUNET_TRANSPORT_connect (send_hello_context->peer->cfg, NULL,
3527 send_hello_context, NULL, NULL, NULL);
3529 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
3530 "Offering HELLO of peer %s to peer %s\n",
3531 send_hello_context->peer->daemon->shortname,
3532 pg->peers[send_hello_context->peer_pos->index].
3534 GNUNET_TRANSPORT_offer_hello (send_hello_context->peer->daemon->th,
3535 (const struct GNUNET_MessageHeader *)
3536 pg->peers[send_hello_context->peer_pos->
3537 index].daemon->hello,
3538 &hello_sent_callback, send_hello_context);
3539 send_hello_context->peer_pos = send_hello_context->peer_pos->next;
3540 GNUNET_assert (send_hello_context->peer->daemon->th != NULL);
3546 * Internal notification of a connection, kept so that we can ensure some connections
3547 * happen instead of flooding all testing daemons with requests to connect.
3550 internal_connect_notify (void *cls, const struct GNUNET_PeerIdentity *first,
3551 const struct GNUNET_PeerIdentity *second,
3553 const struct GNUNET_CONFIGURATION_Handle *first_cfg,
3554 const struct GNUNET_CONFIGURATION_Handle *second_cfg,
3555 struct GNUNET_TESTING_Daemon *first_daemon,
3556 struct GNUNET_TESTING_Daemon *second_daemon,
3559 struct ConnectContext *connect_ctx = cls;
3560 struct ConnectTopologyContext *ct_ctx = connect_ctx->ct_ctx;
3561 struct GNUNET_TESTING_PeerGroup *pg = ct_ctx->pg;
3562 struct PeerConnection *connection;
3564 GNUNET_assert (NULL != connect_ctx->cc);
3565 connect_ctx->cc = NULL;
3566 GNUNET_assert (0 < pg->outstanding_connects);
3567 pg->outstanding_connects--;
3568 GNUNET_CONTAINER_DLL_remove (pg->cc_head, pg->cc_tail, connect_ctx);
3570 * Check whether the inverse connection has been scheduled yet,
3571 * if not, we can remove it from the other peers list and avoid
3572 * even trying to connect them again!
3574 connection = pg->peers[connect_ctx->second_index].connect_peers_head;
3579 while ((connection != NULL) &&
3581 memcmp (first, &pg->peers[connection->index].daemon->id,
3582 sizeof (struct GNUNET_PeerIdentity))))
3583 connection = connection->next;
3585 if (connection != NULL) /* Can safely remove! */
3587 GNUNET_assert (0 < ct_ctx->remaining_connections);
3588 ct_ctx->remaining_connections--;
3589 if (pg->notify_connection != NULL) /* Notify of reverse connection */
3590 pg->notify_connection (pg->notify_connection_cls, second, first, distance,
3591 second_cfg, first_cfg, second_daemon, first_daemon,
3594 GNUNET_CONTAINER_DLL_remove (pg->
3596 second_index].connect_peers_head,
3597 pg->peers[connect_ctx->
3598 second_index].connect_peers_tail,
3600 GNUNET_free (connection);
3603 if (ct_ctx->remaining_connections == 0)
3605 if (ct_ctx->notify_connections_done != NULL)
3607 ct_ctx->notify_connections_done (ct_ctx->notify_cls, NULL);
3608 ct_ctx->notify_connections_done = NULL;
3612 preschedule_connect (pg);
3614 if (pg->notify_connection != NULL)
3615 pg->notify_connection (pg->notify_connection_cls, first, second, distance,
3616 first_cfg, second_cfg, first_daemon, second_daemon,
3618 GNUNET_free (connect_ctx);
3622 * Either delay a connection (because there are too many outstanding)
3623 * or schedule it for right now.
3625 * @param cls a connection context
3626 * @param tc the task runtime context
3629 schedule_connect (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
3631 struct ConnectContext *connect_context = cls;
3632 struct GNUNET_TESTING_PeerGroup *pg = connect_context->ct_ctx->pg;
3634 connect_context->task = GNUNET_SCHEDULER_NO_TASK;
3635 if ((tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN) != 0)
3638 if ((pg->outstanding_connects > pg->max_outstanding_connections) ||
3639 (pg->stop_connects == GNUNET_YES))
3641 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
3642 "Delaying connect, we have too many outstanding connections!\n");
3643 connect_context->task =
3644 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply
3645 (GNUNET_TIME_UNIT_MILLISECONDS, 100),
3646 &schedule_connect, connect_context);
3649 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
3650 "Creating connection, outstanding_connections is %d (max %d)\n",
3651 pg->outstanding_connects, pg->max_outstanding_connections);
3652 pg->outstanding_connects++;
3653 pg->total_connects_scheduled++;
3654 GNUNET_assert (NULL == connect_context->cc);
3655 connect_context->cc =
3656 GNUNET_TESTING_daemons_connect (pg->
3657 peers[connect_context->
3658 first_index].daemon,
3659 pg->peers[connect_context->
3660 second_index].daemon,
3661 connect_context->ct_ctx->connect_timeout,
3662 connect_context->ct_ctx->connect_attempts,
3668 &internal_connect_notify,
3675 * Iterator for actually scheduling connections to be created
3676 * between two peers.
3678 * @param cls closure, a GNUNET_TESTING_Daemon
3679 * @param key the key the second Daemon was stored under
3680 * @param value the GNUNET_TESTING_Daemon that the first is to connect to
3682 * @return GNUNET_YES to continue iteration
3685 connect_iterator (void *cls, const struct GNUNET_HashCode * key, void *value)
3687 struct ConnectTopologyContext *ct_ctx = cls;
3688 struct PeerData *first = ct_ctx->first;
3689 struct GNUNET_TESTING_Daemon *second = value;
3690 struct ConnectContext *connect_context;
3692 connect_context = GNUNET_malloc (sizeof (struct ConnectContext));
3693 connect_context->first = first->daemon;
3694 connect_context->second = second;
3695 connect_context->ct_ctx = ct_ctx;
3696 connect_context->task =
3697 GNUNET_SCHEDULER_add_now (&schedule_connect, connect_context);
3698 GNUNET_CONTAINER_DLL_insert (ct_ctx->pg->cc_head, ct_ctx->pg->cc_tail,
3706 * Iterator for copying all entries in the allowed hashmap to the
3709 * @param cls closure, a GNUNET_TESTING_Daemon
3710 * @param key the key the second Daemon was stored under
3711 * @param value the GNUNET_TESTING_Daemon that the first is to connect to
3713 * @return GNUNET_YES to continue iteration
3716 copy_topology_iterator (void *cls, const struct GNUNET_HashCode * key, void *value)
3718 struct PeerData *first = cls;
3720 GNUNET_assert (GNUNET_OK ==
3721 GNUNET_CONTAINER_multihashmap_put (first->connect_peers, key,
3723 GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY));
3730 * Make the peers to connect the same as those that are allowed to be
3733 * @param pg the peer group
3736 copy_allowed_topology (struct GNUNET_TESTING_PeerGroup *pg)
3738 unsigned int pg_iter;
3743 struct PeerConnection *iter;
3747 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
3750 iter = pg->peers[pg_iter].allowed_peers_head;
3751 while (iter != NULL)
3753 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
3754 "Creating connection between %d and %d\n", pg_iter,
3756 total += add_connections (pg, pg_iter, iter->index, CONNECT, GNUNET_YES);
3757 //total += add_actual_connections(pg, pg_iter, iter->index);
3762 GNUNET_CONTAINER_multihashmap_iterate (pg->peers[pg_iter].allowed_peers,
3763 ©_topology_iterator,
3764 &pg->peers[pg_iter]);
3766 if (GNUNET_SYSERR == ret)
3767 return GNUNET_SYSERR;
3769 total = total + ret;
3776 * Connect the topology as specified by the PeerConnection's
3777 * of each peer in the peer group
3779 * @param pg the peer group we are dealing with
3780 * @param connect_timeout how long try connecting two peers
3781 * @param connect_attempts how many times (max) to attempt
3782 * @param notify_callback callback to notify when finished
3783 * @param notify_cls closure for notify callback
3785 * @return the number of connections that will be attempted
3788 connect_topology (struct GNUNET_TESTING_PeerGroup *pg,
3789 struct GNUNET_TIME_Relative connect_timeout,
3790 unsigned int connect_attempts,
3791 GNUNET_TESTING_NotifyCompletion notify_callback,
3794 unsigned int pg_iter;
3798 struct PeerConnection *connection_iter;
3801 struct SendHelloContext *send_hello_context;
3805 pg->ct_ctx.notify_connections_done = notify_callback;
3806 pg->ct_ctx.notify_cls = notify_cls;
3809 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
3812 connection_iter = pg->peers[pg_iter].connect_peers_head;
3813 while (connection_iter != NULL)
3815 connection_iter = connection_iter->next;
3820 GNUNET_CONTAINER_multihashmap_size (pg->peers[pg_iter].connect_peers);
3827 pg->ct_ctx.connect_timeout = connect_timeout;
3828 pg->ct_ctx.connect_attempts = connect_attempts;
3829 pg->ct_ctx.remaining_connections = total;
3832 /* First give all peers the HELLO's of other peers (connect to first peer's transport service, give HELLO's of other peers, continue...) */
3833 pg->remaining_hellos = total;
3834 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
3836 send_hello_context = GNUNET_malloc (sizeof (struct SendHelloContext));
3837 send_hello_context->peer = &pg->peers[pg_iter];
3838 send_hello_context->peer_pos = pg->peers[pg_iter].connect_peers_head;
3839 send_hello_context->pg = pg;
3840 GNUNET_SCHEDULER_add_now (&schedule_send_hellos, send_hello_context);
3843 for (pg_iter = 0; pg_iter < pg->max_outstanding_connections; pg_iter++)
3845 preschedule_connect (pg);
3853 * Takes a peer group and creates a topology based on the
3854 * one specified. Creates a topology means generates friend
3855 * files for the peers so they can only connect to those allowed
3856 * by the topology. This will only have an effect once peers
3857 * are started if the FRIENDS_ONLY option is set in the base
3858 * config. Also takes an optional restrict topology which
3859 * disallows connections based on particular transports
3860 * UNLESS they are specified in the restricted topology.
3862 * @param pg the peer group struct representing the running peers
3863 * @param topology which topology to connect the peers in
3864 * @param restrict_topology disallow restrict_transports transport
3865 * connections to peers NOT in this topology
3866 * use GNUNET_TESTING_TOPOLOGY_NONE for no restrictions
3867 * @param restrict_transports space delimited list of transports to blacklist
3868 * to create restricted topology
3870 * @return the maximum number of connections were all allowed peers
3871 * connected to each other
3874 GNUNET_TESTING_create_topology (struct GNUNET_TESTING_PeerGroup *pg,
3875 enum GNUNET_TESTING_Topology topology,
3876 enum GNUNET_TESTING_Topology restrict_topology,
3877 const char *restrict_transports)
3881 unsigned int num_connections;
3882 int unblacklisted_connections;
3884 struct PeerConnection *conn_iter;
3885 struct PeerConnection *temp_conn;
3891 for (i = 0; i < pg->total; i++)
3893 pg->peers[i].allowed_peers = GNUNET_CONTAINER_multihashmap_create (100);
3894 pg->peers[i].connect_peers = GNUNET_CONTAINER_multihashmap_create (100);
3895 pg->peers[i].blacklisted_peers = GNUNET_CONTAINER_multihashmap_create (100);
3896 pg->peers[i].pg = pg;
3902 case GNUNET_TESTING_TOPOLOGY_CLIQUE:
3903 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Creating clique topology\n");
3904 num_connections = create_clique (pg, &add_connections, ALLOWED, GNUNET_NO);
3906 case GNUNET_TESTING_TOPOLOGY_SMALL_WORLD_RING:
3907 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
3908 "Creating small world (ring) topology\n");
3909 num_connections = create_small_world_ring (pg, &add_connections, ALLOWED);
3911 case GNUNET_TESTING_TOPOLOGY_SMALL_WORLD:
3912 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
3913 "Creating small world (2d-torus) topology\n");
3914 num_connections = create_small_world (pg, &add_connections, ALLOWED);
3916 case GNUNET_TESTING_TOPOLOGY_RING:
3917 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Creating ring topology\n");
3918 num_connections = create_ring (pg, &add_connections, ALLOWED);
3920 case GNUNET_TESTING_TOPOLOGY_2D_TORUS:
3921 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Creating 2d torus topology\n");
3922 num_connections = create_2d_torus (pg, &add_connections, ALLOWED);
3924 case GNUNET_TESTING_TOPOLOGY_ERDOS_RENYI:
3925 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Creating Erdos-Renyi topology\n");
3926 num_connections = create_erdos_renyi (pg, &add_connections, ALLOWED);
3928 case GNUNET_TESTING_TOPOLOGY_INTERNAT:
3929 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Creating InterNAT topology\n");
3930 num_connections = create_nated_internet (pg, &add_connections, ALLOWED);
3932 case GNUNET_TESTING_TOPOLOGY_SCALE_FREE:
3933 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Creating Scale Free topology\n");
3934 num_connections = create_scale_free (pg, &add_connections, ALLOWED);
3936 case GNUNET_TESTING_TOPOLOGY_LINE:
3937 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
3938 "Creating straight line topology\n");
3939 num_connections = create_line (pg, &add_connections, ALLOWED);
3941 case GNUNET_TESTING_TOPOLOGY_FROM_FILE:
3942 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Creating topology from file!\n");
3944 GNUNET_CONFIGURATION_get_value_string (pg->cfg, "testing_old",
3945 "topology_file", &filename))
3947 create_from_file (pg, filename, &add_connections, ALLOWED);
3950 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
3951 "Missing configuration option TESTING:TOPOLOGY_FILE for creating topology from file!\n");
3952 num_connections = 0;
3955 case GNUNET_TESTING_TOPOLOGY_NONE:
3956 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
3958 ("Creating no allowed topology (all peers can connect at core level)\n"));
3959 num_connections = pg->total * pg->total; /* Clique is allowed! */
3962 num_connections = 0;
3967 GNUNET_CONFIGURATION_get_value_yesno (pg->cfg, "TESTING_OLD", "F2F"))
3969 ret = create_and_copy_friend_files (pg);
3970 if (ret != GNUNET_OK)
3972 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
3973 "Failed during friend file copying!\n");
3974 return GNUNET_SYSERR;
3978 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
3979 "Friend files created/copied successfully!\n");
3983 /* Use the create clique method to initially set all connections as blacklisted. */
3984 if ((restrict_topology != GNUNET_TESTING_TOPOLOGY_NONE) &&
3985 (restrict_topology != GNUNET_TESTING_TOPOLOGY_FROM_FILE))
3986 create_clique (pg, &add_connections, BLACKLIST, GNUNET_NO);
3988 return num_connections;
3990 unblacklisted_connections = 0;
3991 /* Un-blacklist connections as per the topology specified */
3992 switch (restrict_topology)
3994 case GNUNET_TESTING_TOPOLOGY_CLIQUE:
3995 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
3996 "Blacklisting all but clique topology\n");
3997 unblacklisted_connections =
3998 create_clique (pg, &remove_connections, BLACKLIST, GNUNET_NO);
4000 case GNUNET_TESTING_TOPOLOGY_SMALL_WORLD_RING:
4001 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
4002 "Blacklisting all but small world (ring) topology\n");
4003 unblacklisted_connections =
4004 create_small_world_ring (pg, &remove_connections, BLACKLIST);
4006 case GNUNET_TESTING_TOPOLOGY_SMALL_WORLD:
4007 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
4008 "Blacklisting all but small world (2d-torus) topology\n");
4009 unblacklisted_connections =
4010 create_small_world (pg, &remove_connections, BLACKLIST);
4012 case GNUNET_TESTING_TOPOLOGY_RING:
4013 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
4014 "Blacklisting all but ring topology\n");
4015 unblacklisted_connections =
4016 create_ring (pg, &remove_connections, BLACKLIST);
4018 case GNUNET_TESTING_TOPOLOGY_2D_TORUS:
4019 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
4020 "Blacklisting all but 2d torus topology\n");
4021 unblacklisted_connections =
4022 create_2d_torus (pg, &remove_connections, BLACKLIST);
4024 case GNUNET_TESTING_TOPOLOGY_ERDOS_RENYI:
4025 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
4026 "Blacklisting all but Erdos-Renyi topology\n");
4027 unblacklisted_connections =
4028 create_erdos_renyi (pg, &remove_connections, BLACKLIST);
4030 case GNUNET_TESTING_TOPOLOGY_INTERNAT:
4031 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
4032 "Blacklisting all but InterNAT topology\n");
4035 for (off = 0; off < pg->total; off++)
4037 conn_iter = pg->peers[off].allowed_peers_head;
4038 while (conn_iter != NULL)
4040 temp_conn = conn_iter->next;
4041 GNUNET_free (conn_iter);
4042 conn_iter = temp_conn;
4044 pg->peers[off].allowed_peers_head = NULL;
4045 pg->peers[off].allowed_peers_tail = NULL;
4047 conn_iter = pg->peers[off].connect_peers_head;
4048 while (conn_iter != NULL)
4050 temp_conn = conn_iter->next;
4051 GNUNET_free (conn_iter);
4052 conn_iter = temp_conn;
4054 pg->peers[off].connect_peers_head = NULL;
4055 pg->peers[off].connect_peers_tail = NULL;
4057 unblacklisted_connections =
4058 create_nated_internet_copy (pg, &remove_connections, BLACKLIST);
4060 unblacklisted_connections =
4061 create_nated_internet (pg, &remove_connections, BLACKLIST);
4065 case GNUNET_TESTING_TOPOLOGY_SCALE_FREE:
4066 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
4067 "Blacklisting all but Scale Free topology\n");
4068 unblacklisted_connections =
4069 create_scale_free (pg, &remove_connections, BLACKLIST);
4071 case GNUNET_TESTING_TOPOLOGY_LINE:
4072 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
4073 "Blacklisting all but straight line topology\n");
4074 unblacklisted_connections =
4075 create_line (pg, &remove_connections, BLACKLIST);
4080 if ((unblacklisted_connections > 0) && (restrict_transports != NULL))
4082 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Creating blacklist with `%s'\n",
4083 restrict_transports);
4084 ret = create_and_copy_blacklist_files (pg, restrict_transports);
4085 if (ret != GNUNET_OK)
4087 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
4088 "Failed during blacklist file copying!\n");
4093 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
4094 "Blacklist files created/copied successfully!\n");
4097 return num_connections;
4102 * Iterator for choosing random peers to connect.
4104 * @param cls closure, a RandomContext
4105 * @param key the key the second Daemon was stored under
4106 * @param value the GNUNET_TESTING_Daemon that the first is to connect to
4108 * @return GNUNET_YES to continue iteration
4111 random_connect_iterator (void *cls, const struct GNUNET_HashCode * key, void *value)
4113 struct RandomContext *random_ctx = cls;
4114 double random_number;
4115 uint32_t second_pos;
4116 struct GNUNET_HashCode first_hash;
4120 GNUNET_CRYPTO_random_u64 (GNUNET_CRYPTO_QUALITY_WEAK,
4121 UINT64_MAX)) / ((double) UINT64_MAX);
4122 if (random_number < random_ctx->percentage)
4124 GNUNET_assert (GNUNET_OK ==
4125 GNUNET_CONTAINER_multihashmap_put (random_ctx->
4126 first->connect_peers_working_set,
4128 GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY));
4131 /* Now we have considered this particular connection, remove it from the second peer so it's not double counted */
4132 uid_from_hash (key, &second_pos);
4133 hash_from_uid (random_ctx->first_uid, &first_hash);
4134 GNUNET_assert (random_ctx->pg->total > second_pos);
4135 GNUNET_assert (GNUNET_YES ==
4136 GNUNET_CONTAINER_multihashmap_remove (random_ctx->
4138 [second_pos].connect_peers,
4147 * Iterator for adding at least X peers to a peers connection set.
4149 * @param cls closure, MinimumContext
4150 * @param key the key the second Daemon was stored under
4151 * @param value the GNUNET_TESTING_Daemon that the first is to connect to
4153 * @return GNUNET_YES to continue iteration
4156 minimum_connect_iterator (void *cls, const struct GNUNET_HashCode * key, void *value)
4158 struct MinimumContext *min_ctx = cls;
4159 uint32_t second_pos;
4160 struct GNUNET_HashCode first_hash;
4163 if (GNUNET_CONTAINER_multihashmap_size
4164 (min_ctx->first->connect_peers_working_set) < min_ctx->num_to_add)
4166 for (i = 0; i < min_ctx->num_to_add; i++)
4168 if (min_ctx->pg_array[i] == min_ctx->current)
4170 GNUNET_assert (GNUNET_OK ==
4171 GNUNET_CONTAINER_multihashmap_put (min_ctx->
4172 first->connect_peers_working_set,
4174 GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY));
4175 uid_from_hash (key, &second_pos);
4176 hash_from_uid (min_ctx->first_uid, &first_hash);
4177 GNUNET_assert (min_ctx->pg->total > second_pos);
4178 GNUNET_assert (GNUNET_OK ==
4179 GNUNET_CONTAINER_multihashmap_put (min_ctx->
4181 [second_pos].connect_peers_working_set,
4185 GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY));
4186 /* Now we have added this particular connection, remove it from the second peer's map so it's not double counted */
4187 GNUNET_assert (GNUNET_YES ==
4188 GNUNET_CONTAINER_multihashmap_remove (min_ctx->
4190 [second_pos].connect_peers,
4200 return GNUNET_NO; /* We can stop iterating, we have enough peers! */
4205 * Iterator for adding peers to a connection set based on a depth first search.
4207 * @param cls closure, MinimumContext
4208 * @param key the key the second daemon was stored under
4209 * @param value the GNUNET_TESTING_Daemon that the first is to connect to
4211 * @return GNUNET_YES to continue iteration
4214 dfs_connect_iterator (void *cls, const struct GNUNET_HashCode * key, void *value)
4216 struct DFSContext *dfs_ctx = cls;
4217 struct GNUNET_HashCode first_hash;
4219 if (dfs_ctx->current == dfs_ctx->chosen)
4221 GNUNET_assert (GNUNET_OK ==
4222 GNUNET_CONTAINER_multihashmap_put (dfs_ctx->
4223 first->connect_peers_working_set,
4225 GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY));
4226 uid_from_hash (key, &dfs_ctx->second_uid);
4227 hash_from_uid (dfs_ctx->first_uid, &first_hash);
4228 GNUNET_assert (GNUNET_OK ==
4229 GNUNET_CONTAINER_multihashmap_put (dfs_ctx->
4231 second_uid].connect_peers_working_set,
4233 dfs_ctx->first->daemon,
4234 GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY));
4235 GNUNET_assert (GNUNET_YES ==
4236 GNUNET_CONTAINER_multihashmap_remove (dfs_ctx->
4238 [dfs_ctx->second_uid].connect_peers,
4242 /* Can't remove second from first yet because we are currently iterating, hence the return value in the DFSContext! */
4243 return GNUNET_NO; /* We have found our peer, don't iterate more */
4252 * From the set of connections possible, choose percentage percent of connections
4253 * to actually connect.
4255 * @param pg the peergroup we are dealing with
4256 * @param percentage what percent of total connections to make
4259 choose_random_connections (struct GNUNET_TESTING_PeerGroup *pg,
4265 struct PeerConnection *conn_iter;
4266 double random_number;
4268 struct RandomContext random_ctx;
4271 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
4274 conn_iter = pg->peers[pg_iter].connect_peers_head;
4275 while (conn_iter != NULL)
4279 GNUNET_CRYPTO_random_u64 (GNUNET_CRYPTO_QUALITY_WEAK,
4280 UINT64_MAX)) / ((double) UINT64_MAX);
4281 if (random_number < percentage)
4283 add_connections (pg, pg_iter, conn_iter->index, WORKING_SET,
4286 conn_iter = conn_iter->next;
4289 random_ctx.first_uid = pg_iter;
4290 random_ctx.first = &pg->peers[pg_iter];
4291 random_ctx.percentage = percentage;
4293 pg->peers[pg_iter].connect_peers_working_set =
4294 GNUNET_CONTAINER_multihashmap_create (pg->total);
4295 GNUNET_CONTAINER_multihashmap_iterate (pg->peers[pg_iter].connect_peers,
4296 &random_connect_iterator,
4298 /* Now remove the old connections */
4299 GNUNET_CONTAINER_multihashmap_destroy (pg->peers[pg_iter].connect_peers);
4300 /* And replace with the random set */
4301 pg->peers[pg_iter].connect_peers =
4302 pg->peers[pg_iter].connect_peers_working_set;
4306 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
4308 conn_iter = pg->peers[pg_iter].connect_peers_head;
4309 while (pg->peers[pg_iter].connect_peers_head != NULL)
4310 remove_connections (pg, pg_iter,
4311 pg->peers[pg_iter].connect_peers_head->index, CONNECT,
4314 pg->peers[pg_iter].connect_peers_head =
4315 pg->peers[pg_iter].connect_peers_working_set_head;
4316 pg->peers[pg_iter].connect_peers_tail =
4317 pg->peers[pg_iter].connect_peers_working_set_tail;
4318 pg->peers[pg_iter].connect_peers_working_set_head = NULL;
4319 pg->peers[pg_iter].connect_peers_working_set_tail = NULL;
4324 * Count the number of connections in a linked list of connections.
4326 * @param conn_list the connection list to get the count of
4328 * @return the number of elements in the list
4331 count_connections (struct PeerConnection *conn_list)
4333 struct PeerConnection *iter;
4338 while (iter != NULL)
4347 count_workingset_connections (struct GNUNET_TESTING_PeerGroup *pg)
4350 unsigned int pg_iter;
4353 struct PeerConnection *conn_iter;
4357 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
4360 conn_iter = pg->peers[pg_iter].connect_peers_working_set_head;
4361 while (conn_iter != NULL)
4364 conn_iter = conn_iter->next;
4368 GNUNET_CONTAINER_multihashmap_size (pg->
4370 [pg_iter].connect_peers_working_set);
4378 count_allowed_connections (struct GNUNET_TESTING_PeerGroup *pg)
4381 unsigned int pg_iter;
4384 struct PeerConnection *conn_iter;
4388 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
4391 conn_iter = pg->peers[pg_iter].allowed_peers_head;
4392 while (conn_iter != NULL)
4395 conn_iter = conn_iter->next;
4399 GNUNET_CONTAINER_multihashmap_size (pg->peers[pg_iter].allowed_peers);
4407 * From the set of connections possible, choose at least num connections per
4410 * @param pg the peergroup we are dealing with
4411 * @param num how many connections at least should each peer have (if possible)?
4414 choose_minimum (struct GNUNET_TESTING_PeerGroup *pg, unsigned int num)
4417 struct MinimumContext minimum_ctx;
4419 struct PeerConnection *conn_iter;
4420 unsigned int temp_list_size;
4423 uint32_t random; /* Random list entry to connect peer to */
4428 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
4430 temp_list_size = count_connections (pg->peers[pg_iter].connect_peers_head);
4431 if (temp_list_size == 0)
4433 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Peer %d has 0 connections!?!?\n",
4437 for (i = 0; i < num; i++)
4440 GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK, temp_list_size);
4441 conn_iter = pg->peers[pg_iter].connect_peers_head;
4442 for (count = 0; count < random; count++)
4443 conn_iter = conn_iter->next;
4444 /* We now have a random connection, connect it! */
4445 GNUNET_assert (conn_iter != NULL);
4446 add_connections (pg, pg_iter, conn_iter->index, WORKING_SET, GNUNET_YES);
4450 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
4452 pg->peers[pg_iter].connect_peers_working_set =
4453 GNUNET_CONTAINER_multihashmap_create (num);
4456 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
4458 minimum_ctx.first_uid = pg_iter;
4459 minimum_ctx.pg_array =
4460 GNUNET_CRYPTO_random_permute (GNUNET_CRYPTO_QUALITY_WEAK,
4461 GNUNET_CONTAINER_multihashmap_size
4462 (pg->peers[pg_iter].connect_peers));
4463 minimum_ctx.first = &pg->peers[pg_iter];
4464 minimum_ctx.pg = pg;
4465 minimum_ctx.num_to_add = num;
4466 minimum_ctx.current = 0;
4467 GNUNET_CONTAINER_multihashmap_iterate (pg->peers[pg_iter].connect_peers,
4468 &minimum_connect_iterator,
4472 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
4474 /* Remove the "old" connections */
4475 GNUNET_CONTAINER_multihashmap_destroy (pg->peers[pg_iter].connect_peers);
4476 /* And replace with the working set */
4477 pg->peers[pg_iter].connect_peers =
4478 pg->peers[pg_iter].connect_peers_working_set;
4481 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
4483 while (pg->peers[pg_iter].connect_peers_head != NULL)
4485 conn_iter = pg->peers[pg_iter].connect_peers_head;
4486 GNUNET_CONTAINER_DLL_remove (pg->peers[pg_iter].connect_peers_head,
4487 pg->peers[pg_iter].connect_peers_tail,
4489 GNUNET_free (conn_iter);
4490 /*remove_connections(pg, pg_iter, pg->peers[pg_iter].connect_peers_head->index, CONNECT, GNUNET_YES); */
4493 pg->peers[pg_iter].connect_peers_head =
4494 pg->peers[pg_iter].connect_peers_working_set_head;
4495 pg->peers[pg_iter].connect_peers_tail =
4496 pg->peers[pg_iter].connect_peers_working_set_tail;
4497 pg->peers[pg_iter].connect_peers_working_set_head = NULL;
4498 pg->peers[pg_iter].connect_peers_working_set_tail = NULL;
4503 struct FindClosestContext
4506 * The currently known closest peer.
4508 struct GNUNET_TESTING_Daemon *closest;
4511 * The info for the peer we are adding connections for.
4513 struct PeerData *curr_peer;
4516 * The distance (bits) between the current
4517 * peer and the currently known closest.
4519 unsigned int closest_dist;
4522 * The offset of the closest known peer in
4525 unsigned int closest_num;
4529 * Iterator over hash map entries of the allowed
4530 * peer connections. Find the closest, not already
4531 * connected peer and return it.
4533 * @param cls closure (struct FindClosestContext)
4534 * @param key current key code (hash of offset in pg)
4535 * @param value value in the hash map - a GNUNET_TESTING_Daemon
4536 * @return GNUNET_YES if we should continue to
4541 find_closest_peers (void *cls, const struct GNUNET_HashCode * key, void *value)
4543 struct FindClosestContext *closest_ctx = cls;
4544 struct GNUNET_TESTING_Daemon *daemon = value;
4546 if (((closest_ctx->closest == NULL) ||
4547 (GNUNET_CRYPTO_hash_matching_bits
4548 (&daemon->id.hashPubKey,
4549 &closest_ctx->curr_peer->daemon->id.hashPubKey) >
4550 closest_ctx->closest_dist)) &&
4552 GNUNET_CONTAINER_multihashmap_contains (closest_ctx->
4553 curr_peer->connect_peers, key)))
4555 closest_ctx->closest_dist =
4556 GNUNET_CRYPTO_hash_matching_bits (&daemon->id.hashPubKey,
4557 &closest_ctx->curr_peer->daemon->
4559 closest_ctx->closest = daemon;
4560 uid_from_hash (key, &closest_ctx->closest_num);
4566 * From the set of connections possible, choose at num connections per
4567 * peer based on depth which are closest out of those allowed. Guaranteed
4568 * to add num peers to connect to, provided there are that many peers
4569 * in the underlay topology to connect to.
4571 * @param pg the peergroup we are dealing with
4572 * @param num how many connections at least should each peer have (if possible)?
4573 * @param proc processor to actually add the connections
4574 * @param list the peer list to use
4577 add_closest (struct GNUNET_TESTING_PeerGroup *pg, unsigned int num,
4578 GNUNET_TESTING_ConnectionProcessor proc, enum PeerLists list)
4583 struct FindClosestContext closest_ctx;
4588 for (i = 0; i < num; i++) /* Each time find a closest peer (from those available) */
4590 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
4592 closest_ctx.curr_peer = &pg->peers[pg_iter];
4593 closest_ctx.closest = NULL;
4594 closest_ctx.closest_dist = 0;
4595 closest_ctx.closest_num = 0;
4596 GNUNET_CONTAINER_multihashmap_iterate (pg->peers[pg_iter].allowed_peers,
4597 &find_closest_peers, &closest_ctx);
4598 if (closest_ctx.closest != NULL)
4600 GNUNET_assert (closest_ctx.closest_num < pg->total);
4601 proc (pg, pg_iter, closest_ctx.closest_num, list);
4609 * From the set of connections possible, choose at least num connections per
4610 * peer based on depth first traversal of peer connections. If DFS leaves
4611 * peers unconnected, ensure those peers get connections.
4613 * @param pg the peergroup we are dealing with
4614 * @param num how many connections at least should each peer have (if possible)?
4617 perform_dfs (struct GNUNET_TESTING_PeerGroup *pg, unsigned int num)
4621 uint32_t starting_peer;
4622 uint32_t least_connections;
4623 uint32_t random_connection;
4626 unsigned int temp_count;
4627 struct PeerConnection *peer_iter;
4629 struct DFSContext dfs_ctx;
4630 struct GNUNET_HashCode second_hash;
4636 while ((count_workingset_connections (pg) < num * pg->total) &&
4637 (count_allowed_connections (pg) > 0))
4639 if (dfs_count % pg->total == 0) /* Restart the DFS at some weakly connected peer */
4641 least_connections = -1; /* Set to very high number */
4642 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
4645 count_connections (pg->
4646 peers[pg_iter].connect_peers_working_set_head);
4647 if (temp_count < least_connections)
4649 starting_peer = pg_iter;
4650 least_connections = temp_count;
4656 count_connections (pg->peers[starting_peer].connect_peers_head);
4657 if (temp_count == 0)
4658 continue; /* FIXME: infinite loop? */
4661 GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK, temp_count);
4663 peer_iter = pg->peers[starting_peer].connect_peers_head;
4664 while (temp_count < random_connection)
4666 peer_iter = peer_iter->next;
4669 GNUNET_assert (peer_iter != NULL);
4670 add_connections (pg, starting_peer, peer_iter->index, WORKING_SET,
4672 remove_connections (pg, starting_peer, peer_iter->index, CONNECT,
4674 starting_peer = peer_iter->index;
4679 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
4681 pg->peers[pg_iter].connect_peers_working_set =
4682 GNUNET_CONTAINER_multihashmap_create (num);
4687 while ((count_workingset_connections (pg) < num * pg->total) &&
4688 (count_allowed_connections (pg) > 0))
4690 if (dfs_count % pg->total == 0) /* Restart the DFS at some weakly connected peer */
4692 least_connections = -1; /* Set to very high number */
4693 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
4695 if (GNUNET_CONTAINER_multihashmap_size
4696 (pg->peers[pg_iter].connect_peers_working_set) < least_connections)
4698 starting_peer = pg_iter;
4700 GNUNET_CONTAINER_multihashmap_size (pg->
4702 [pg_iter].connect_peers_working_set);
4707 if (GNUNET_CONTAINER_multihashmap_size (pg->peers[starting_peer].connect_peers) == 0) /* Ensure there is at least one peer left to connect! */
4713 /* Choose a random peer from the chosen peers set of connections to add */
4715 GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK,
4716 GNUNET_CONTAINER_multihashmap_size (pg->peers
4717 [starting_peer].connect_peers));
4718 dfs_ctx.first_uid = starting_peer;
4719 dfs_ctx.first = &pg->peers[starting_peer];
4721 dfs_ctx.current = 0;
4723 GNUNET_CONTAINER_multihashmap_iterate (pg->
4724 peers[starting_peer].connect_peers,
4725 &dfs_connect_iterator, &dfs_ctx);
4726 /* Remove the second from the first, since we will be continuing the search and may encounter the first peer again! */
4727 hash_from_uid (dfs_ctx.second_uid, &second_hash);
4728 GNUNET_assert (GNUNET_YES ==
4729 GNUNET_CONTAINER_multihashmap_remove (pg->peers
4730 [starting_peer].connect_peers,
4734 [dfs_ctx.second_uid].daemon));
4735 starting_peer = dfs_ctx.second_uid;
4738 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
4740 /* Remove the "old" connections */
4741 GNUNET_CONTAINER_multihashmap_destroy (pg->peers[pg_iter].connect_peers);
4742 /* And replace with the working set */
4743 pg->peers[pg_iter].connect_peers =
4744 pg->peers[pg_iter].connect_peers_working_set;
4750 * Internal callback for topology information for a particular peer.
4753 internal_topology_callback (void *cls, const struct GNUNET_PeerIdentity *peer,
4754 const struct GNUNET_ATS_Information *atsi,
4755 unsigned int atsi_count)
4757 struct CoreContext *core_ctx = cls;
4758 struct TopologyIterateContext *iter_ctx = core_ctx->iter_context;
4760 if (peer == NULL) /* Either finished, or something went wrong */
4762 iter_ctx->completed++;
4763 iter_ctx->connected--;
4764 /* One core context allocated per iteration, must free! */
4765 GNUNET_free (core_ctx);
4769 iter_ctx->topology_cb (iter_ctx->cls, &core_ctx->daemon->id, peer, NULL);
4772 if (iter_ctx->completed == iter_ctx->total)
4774 iter_ctx->topology_cb (iter_ctx->cls, NULL, NULL, NULL);
4775 /* Once all are done, free the iteration context */
4776 GNUNET_free (iter_ctx);
4781 * Check running topology iteration tasks, if below max start a new one, otherwise
4782 * schedule for some time in the future.
4785 schedule_get_topology (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
4787 struct CoreContext *core_context = cls;
4788 struct TopologyIterateContext *topology_context =
4789 (struct TopologyIterateContext *) core_context->iter_context;
4790 if ((tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN) != 0)
4793 if (topology_context->connected >
4794 topology_context->pg->max_outstanding_connections)
4796 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
4797 "Delaying connect, we have too many outstanding connections!\n");
4798 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply
4799 (GNUNET_TIME_UNIT_MILLISECONDS, 100),
4800 &schedule_get_topology, core_context);
4804 topology_context->connected++;
4807 GNUNET_CORE_iterate_peers (core_context->daemon->cfg,
4808 &internal_topology_callback, core_context))
4810 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Topology iteration failed.\n");
4811 internal_topology_callback (core_context, NULL, NULL, 0);
4817 * Iterate over all (running) peers in the peer group, retrieve
4818 * all connections that each currently has.
4821 GNUNET_TESTING_get_topology (struct GNUNET_TESTING_PeerGroup *pg,
4822 GNUNET_TESTING_NotifyTopology cb, void *cls)
4824 struct TopologyIterateContext *topology_context;
4825 struct CoreContext *core_ctx;
4827 unsigned int total_count;
4829 /* Allocate a single topology iteration context */
4830 topology_context = GNUNET_malloc (sizeof (struct TopologyIterateContext));
4831 topology_context->topology_cb = cb;
4832 topology_context->cls = cls;
4833 topology_context->pg = pg;
4835 for (i = 0; i < pg->total; i++)
4837 if (pg->peers[i].daemon->running == GNUNET_YES)
4839 /* Allocate one core context per core we need to connect to */
4840 core_ctx = GNUNET_malloc (sizeof (struct CoreContext));
4841 core_ctx->daemon = pg->peers[i].daemon;
4842 /* Set back pointer to topology iteration context */
4843 core_ctx->iter_context = topology_context;
4844 GNUNET_SCHEDULER_add_now (&schedule_get_topology, core_ctx);
4848 if (total_count == 0)
4850 cb (cls, NULL, NULL, "Cannot iterate over topology, no running peers!");
4851 GNUNET_free (topology_context);
4854 topology_context->total = total_count;
4859 * Callback function to process statistic values.
4860 * This handler is here only really to insert a peer
4861 * identity (or daemon) so the statistics can be uniquely
4862 * tied to a single running peer.
4864 * @param cls closure
4865 * @param subsystem name of subsystem that created the statistic
4866 * @param name the name of the datum
4867 * @param value the current value
4868 * @param is_persistent GNUNET_YES if the value is persistent, GNUNET_NO if not
4869 * @return GNUNET_OK to continue, GNUNET_SYSERR to abort iteration
4872 internal_stats_callback (void *cls, const char *subsystem, const char *name,
4873 uint64_t value, int is_persistent)
4875 struct StatsCoreContext *core_context = cls;
4876 struct StatsIterateContext *stats_context =
4877 (struct StatsIterateContext *) core_context->iter_context;
4879 return stats_context->proc (stats_context->cls, &core_context->daemon->id,
4880 subsystem, name, value, is_persistent);
4885 * We don't need the statistics handle anymore, destroy it.
4887 * @param cls Closure (the statistics handle to destroy)
4888 * @param tc Task Context
4891 internal_destroy_statistics (void *cls,
4892 const struct GNUNET_SCHEDULER_TaskContext *tc)
4894 struct GNUNET_STATISTICS_Handle *h = cls;
4896 GNUNET_STATISTICS_destroy (h, GNUNET_NO);
4901 * Internal continuation call for statistics iteration.
4903 * @param cls closure, the CoreContext for this iteration
4904 * @param success whether or not the statistics iterations
4905 * was canceled or not (we don't care)
4908 internal_stats_cont (void *cls, int success)
4910 struct StatsCoreContext *core_context = cls;
4911 struct StatsIterateContext *stats_context =
4912 (struct StatsIterateContext *) core_context->iter_context;
4914 stats_context->connected--;
4915 stats_context->completed++;
4917 if (stats_context->completed == stats_context->total)
4919 stats_context->cont (stats_context->cls, GNUNET_YES);
4920 GNUNET_free (stats_context);
4923 if (core_context->stats_handle != NULL)
4924 /* Cannot destroy handle inside the continuation */
4925 GNUNET_SCHEDULER_add_now (&internal_destroy_statistics,
4926 core_context->stats_handle);
4928 GNUNET_free (core_context);
4932 * Check running topology iteration tasks, if below max start a new one, otherwise
4933 * schedule for some time in the future.
4936 schedule_get_statistics (void *cls,
4937 const struct GNUNET_SCHEDULER_TaskContext *tc)
4939 struct StatsCoreContext *core_context = cls;
4940 struct StatsIterateContext *stats_context =
4941 (struct StatsIterateContext *) core_context->iter_context;
4943 if ((tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN) != 0)
4946 if (stats_context->connected > stats_context->pg->max_outstanding_connections)
4948 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
4949 "Delaying connect, we have too many outstanding connections!\n");
4950 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply
4951 (GNUNET_TIME_UNIT_MILLISECONDS, 100),
4952 &schedule_get_statistics, core_context);
4956 stats_context->connected++;
4957 core_context->stats_handle =
4958 GNUNET_STATISTICS_create ("testing_old", core_context->daemon->cfg);
4959 if (core_context->stats_handle == NULL)
4961 internal_stats_cont (core_context, GNUNET_NO);
4965 core_context->stats_get_handle =
4966 GNUNET_STATISTICS_get (core_context->stats_handle, NULL, NULL,
4967 GNUNET_TIME_UNIT_FOREVER_REL,
4968 &internal_stats_cont, &internal_stats_callback,
4970 if (core_context->stats_get_handle == NULL)
4971 internal_stats_cont (core_context, GNUNET_NO);
4976 struct DuplicateStats
4979 * Next item in the list
4981 struct DuplicateStats *next;
4984 * Nasty string, concatenation of relevant information.
4986 char *unique_string;
4990 * Check whether the combination of port/host/unix domain socket
4991 * already exists in the list of peers being checked for statistics.
4993 * @param pg the peergroup in question
4994 * @param specific_peer the peer we're concerned with
4995 * @param stats_list the list to return to the caller
4997 * @return GNUNET_YES if the statistics instance has been seen already,
4998 * GNUNET_NO if not (and we may have added it to the list)
5001 stats_check_existing (struct GNUNET_TESTING_PeerGroup *pg,
5002 struct PeerData *specific_peer,
5003 struct DuplicateStats **stats_list)
5005 struct DuplicateStats *pos;
5006 char *unix_domain_socket;
5007 unsigned long long port;
5011 GNUNET_CONFIGURATION_get_value_yesno (pg->cfg, "testing_old",
5012 "single_statistics_per_host"))
5013 return GNUNET_NO; /* Each peer has its own statistics instance, do nothing! */
5017 GNUNET_CONFIGURATION_get_value_string (specific_peer->cfg, "statistics",
5018 "unixpath", &unix_domain_socket))
5022 GNUNET_CONFIGURATION_get_value_number (specific_peer->cfg, "statistics",
5025 GNUNET_free (unix_domain_socket);
5029 if (specific_peer->daemon->hostname != NULL)
5030 GNUNET_asprintf (&to_match, "%s%s%llu", specific_peer->daemon->hostname,
5031 unix_domain_socket, port);
5033 GNUNET_asprintf (&to_match, "%s%llu", unix_domain_socket, port);
5037 if (0 == strcmp (to_match, pos->unique_string))
5039 GNUNET_free (unix_domain_socket);
5040 GNUNET_free (to_match);
5045 pos = GNUNET_malloc (sizeof (struct DuplicateStats));
5046 pos->unique_string = to_match;
5047 pos->next = *stats_list;
5049 GNUNET_free (unix_domain_socket);
5054 * Iterate over all (running) peers in the peer group, retrieve
5055 * all statistics from each.
5057 * @param pg the peergroup to iterate statistics of
5058 * @param cont continuation to call once all stats have been retrieved
5059 * @param proc processing function for each statistic from each peer
5060 * @param cls closure to pass to proc
5064 GNUNET_TESTING_get_statistics (struct GNUNET_TESTING_PeerGroup *pg,
5065 GNUNET_STATISTICS_Callback cont,
5066 GNUNET_TESTING_STATISTICS_Iterator proc,
5069 struct StatsIterateContext *stats_context;
5070 struct StatsCoreContext *core_ctx;
5072 unsigned int total_count;
5073 struct DuplicateStats *stats_list;
5074 struct DuplicateStats *pos;
5078 /* Allocate a single stats iteration context */
5079 stats_context = GNUNET_malloc (sizeof (struct StatsIterateContext));
5080 stats_context->cont = cont;
5081 stats_context->proc = proc;
5082 stats_context->cls = cls;
5083 stats_context->pg = pg;
5086 for (i = 0; i < pg->total; i++)
5088 if ((pg->peers[i].daemon->running == GNUNET_YES) &&
5089 (GNUNET_NO == stats_check_existing (pg, &pg->peers[i], &stats_list)))
5091 /* Allocate one core context per core we need to connect to */
5092 core_ctx = GNUNET_malloc (sizeof (struct StatsCoreContext));
5093 core_ctx->daemon = pg->peers[i].daemon;
5094 /* Set back pointer to topology iteration context */
5095 core_ctx->iter_context = stats_context;
5096 GNUNET_SCHEDULER_add_now (&schedule_get_statistics, core_ctx);
5101 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
5102 "Retrieving stats from %u total instances.\n", total_count);
5103 if (0 != total_count)
5104 stats_context->total = total_count;
5106 GNUNET_free (stats_context);
5107 if (stats_list != NULL)
5112 GNUNET_free (pos->unique_string);
5113 stats_list = pos->next;
5115 pos = stats_list->next;
5122 * Stop the connection process temporarily.
5124 * @param pg the peer group to stop connecting
5127 GNUNET_TESTING_stop_connections (struct GNUNET_TESTING_PeerGroup *pg)
5129 pg->stop_connects = GNUNET_YES;
5133 * Resume the connection process temporarily.
5135 * @param pg the peer group to resume connecting
5138 GNUNET_TESTING_resume_connections (struct GNUNET_TESTING_PeerGroup *pg)
5140 pg->stop_connects = GNUNET_NO;
5144 * There are many ways to connect peers that are supported by this function.
5145 * To connect peers in the same topology that was created via the
5146 * GNUNET_TESTING_create_topology, the topology variable must be set to
5147 * GNUNET_TESTING_TOPOLOGY_NONE. If the topology variable is specified,
5148 * a new instance of that topology will be generated and attempted to be
5149 * connected. This could result in some connections being impossible,
5150 * because some topologies are non-deterministic.
5152 * @param pg the peer group struct representing the running peers
5153 * @param topology which topology to connect the peers in
5154 * @param options options for connecting the topology
5155 * @param option_modifier modifier for options that take a parameter
5156 * @param connect_timeout how long to wait before giving up on connecting
5158 * @param connect_attempts how many times to attempt to connect two peers
5159 * over the connect_timeout duration
5160 * @param notify_callback notification to be called once all connections completed
5161 * @param notify_cls closure for notification callback
5163 * @return the number of connections that will be attempted, GNUNET_SYSERR on error
5166 GNUNET_TESTING_connect_topology (struct GNUNET_TESTING_PeerGroup *pg,
5167 enum GNUNET_TESTING_Topology topology,
5168 enum GNUNET_TESTING_TopologyOption options,
5169 double option_modifier,
5170 struct GNUNET_TIME_Relative connect_timeout,
5171 unsigned int connect_attempts,
5172 GNUNET_TESTING_NotifyCompletion
5173 notify_callback, void *notify_cls)
5177 case GNUNET_TESTING_TOPOLOGY_CLIQUE:
5178 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
5179 "Creating clique CONNECT topology\n");
5180 create_clique (pg, &add_connections, CONNECT, GNUNET_NO);
5182 case GNUNET_TESTING_TOPOLOGY_SMALL_WORLD_RING:
5183 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
5184 "Creating small world (ring) CONNECT topology\n");
5185 create_small_world_ring (pg, &add_connections, CONNECT);
5187 case GNUNET_TESTING_TOPOLOGY_SMALL_WORLD:
5188 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
5189 "Creating small world (2d-torus) CONNECT topology\n");
5190 create_small_world (pg, &add_connections, CONNECT);
5192 case GNUNET_TESTING_TOPOLOGY_RING:
5193 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Creating ring CONNECT topology\n");
5194 create_ring (pg, &add_connections, CONNECT);
5196 case GNUNET_TESTING_TOPOLOGY_2D_TORUS:
5197 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
5198 "Creating 2d torus CONNECT topology\n");
5199 create_2d_torus (pg, &add_connections, CONNECT);
5201 case GNUNET_TESTING_TOPOLOGY_ERDOS_RENYI:
5202 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
5203 "Creating Erdos-Renyi CONNECT topology\n");
5204 create_erdos_renyi (pg, &add_connections, CONNECT);
5206 case GNUNET_TESTING_TOPOLOGY_INTERNAT:
5207 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
5208 "Creating InterNAT CONNECT topology\n");
5209 create_nated_internet (pg, &add_connections, CONNECT);
5211 case GNUNET_TESTING_TOPOLOGY_SCALE_FREE:
5212 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
5213 "Creating Scale Free CONNECT topology\n");
5214 create_scale_free (pg, &add_connections, CONNECT);
5216 case GNUNET_TESTING_TOPOLOGY_LINE:
5217 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
5218 "Creating straight line CONNECT topology\n");
5219 create_line (pg, &add_connections, CONNECT);
5221 case GNUNET_TESTING_TOPOLOGY_NONE:
5222 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Creating no CONNECT topology\n");
5223 copy_allowed_topology (pg);
5226 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
5227 _("Unknown topology specification, can't connect peers!\n"));
5228 return GNUNET_SYSERR;
5233 case GNUNET_TESTING_TOPOLOGY_OPTION_RANDOM:
5234 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
5235 "Connecting random subset (%'.2f percent) of possible peers\n",
5236 100 * option_modifier);
5237 choose_random_connections (pg, option_modifier);
5239 case GNUNET_TESTING_TOPOLOGY_OPTION_MINIMUM:
5240 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
5241 "Connecting a minimum of %u peers each (if possible)\n",
5242 (unsigned int) option_modifier);
5243 choose_minimum (pg, (unsigned int) option_modifier);
5245 case GNUNET_TESTING_TOPOLOGY_OPTION_DFS:
5246 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
5247 "Using DFS to connect a minimum of %u peers each (if possible)\n",
5248 (unsigned int) option_modifier);
5250 perform_dfs (pg, (int) option_modifier);
5253 case GNUNET_TESTING_TOPOLOGY_OPTION_ADD_CLOSEST:
5254 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
5255 "Finding additional %u closest peers each (if possible)\n",
5256 (unsigned int) option_modifier);
5258 add_closest (pg, (unsigned int) option_modifier, &add_connections, CONNECT);
5261 case GNUNET_TESTING_TOPOLOGY_OPTION_NONE:
5263 case GNUNET_TESTING_TOPOLOGY_OPTION_ALL:
5269 return connect_topology (pg, connect_timeout, connect_attempts,
5270 notify_callback, notify_cls);
5274 * Lookup and return the number of SSH connections to a host.
5276 * @param hostname the hostname to lookup in the list
5277 * @param pg the peergroup that the host belongs to
5279 * @return the number of current ssh connections to the host
5282 count_outstanding_at_host (const char *hostname,
5283 struct GNUNET_TESTING_PeerGroup *pg)
5285 struct OutstandingSSH *pos;
5288 while ((pos != NULL) && (strcmp (pos->hostname, hostname) != 0))
5290 GNUNET_assert (pos != NULL);
5291 return pos->outstanding;
5295 * Increment the number of SSH connections to a host by one.
5297 * @param hostname the hostname to lookup in the list
5298 * @param pg the peergroup that the host belongs to
5302 increment_outstanding_at_host (const char *hostname,
5303 struct GNUNET_TESTING_PeerGroup *pg)
5305 struct OutstandingSSH *pos;
5308 while ((NULL != pos) && (strcmp (pos->hostname, hostname) != 0))
5310 GNUNET_assert (NULL != pos);
5315 * Decrement the number of SSH connections to a host by one.
5317 * @param hostname the hostname to lookup in the list
5318 * @param pg the peergroup that the host belongs to
5322 decrement_outstanding_at_host (const char *hostname,
5323 struct GNUNET_TESTING_PeerGroup *pg)
5325 struct OutstandingSSH *pos;
5328 while ((pos != NULL) && (strcmp (pos->hostname, hostname) != 0))
5330 GNUNET_assert (pos != NULL);
5335 * Callback that is called whenever a hostkey is generated
5336 * for a peer. Call the real callback and decrement the
5337 * starting counter for the peergroup.
5339 * @param cls closure
5340 * @param id identifier for the daemon, NULL on error
5341 * @param d handle for the daemon
5342 * @param emsg error message (NULL on success)
5345 internal_hostkey_callback (void *cls, const struct GNUNET_PeerIdentity *id,
5346 struct GNUNET_TESTING_Daemon *d, const char *emsg)
5348 struct InternalStartContext *internal_context = cls;
5350 internal_context->peer->pg->starting--;
5351 internal_context->peer->pg->started++;
5352 if (internal_context->hostname != NULL)
5353 decrement_outstanding_at_host (internal_context->hostname,
5354 internal_context->peer->pg);
5355 if (internal_context->hostkey_callback != NULL)
5356 internal_context->hostkey_callback (internal_context->hostkey_cls, id, d,
5358 else if (internal_context->peer->pg->started ==
5359 internal_context->peer->pg->total)
5361 internal_context->peer->pg->started = 0; /* Internal startup may use this counter! */
5362 GNUNET_TESTING_daemons_continue_startup (internal_context->peer->pg);
5367 * Callback that is called whenever a peer has finished starting.
5368 * Call the real callback and decrement the starting counter
5369 * for the peergroup.
5371 * @param cls closure
5372 * @param id identifier for the daemon, NULL on error
5374 * @param d handle for the daemon
5375 * @param emsg error message (NULL on success)
5378 internal_startup_callback (void *cls, const struct GNUNET_PeerIdentity *id,
5379 const struct GNUNET_CONFIGURATION_Handle *cfg,
5380 struct GNUNET_TESTING_Daemon *d, const char *emsg)
5382 struct InternalStartContext *internal_context = cls;
5384 internal_context->peer->pg->starting--;
5385 if (internal_context->hostname != NULL)
5386 decrement_outstanding_at_host (internal_context->hostname,
5387 internal_context->peer->pg);
5388 if (internal_context->start_cb != NULL)
5389 internal_context->start_cb (internal_context->start_cb_cls, id, cfg, d,
5395 * Calls GNUNET_TESTING_daemon_continue_startup to set the daemon's state
5396 * from HOSTKEY_CREATED to TOPOLOGY_SETUP. Makes sure not to saturate a host
5397 * with requests delaying them when needed.
5399 * @param cls closure: internal context of the daemon.
5400 * @param tc TaskContext
5403 internal_continue_startup (void *cls,
5404 const struct GNUNET_SCHEDULER_TaskContext *tc)
5406 struct InternalStartContext *internal_context = cls;
5408 internal_context->peer->startup_task = GNUNET_SCHEDULER_NO_TASK;
5410 if ((tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN) != 0)
5415 if ((internal_context->peer->pg->starting <
5416 internal_context->peer->pg->max_concurrent_ssh) ||
5417 ((internal_context->hostname != NULL) &&
5418 (count_outstanding_at_host
5419 (internal_context->hostname,
5420 internal_context->peer->pg) <
5421 internal_context->peer->pg->max_concurrent_ssh)))
5423 if (internal_context->hostname != NULL)
5424 increment_outstanding_at_host (internal_context->hostname,
5425 internal_context->peer->pg);
5426 internal_context->peer->pg->starting++;
5427 GNUNET_TESTING_daemon_continue_startup (internal_context->peer->daemon);
5431 internal_context->peer->startup_task =
5432 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply
5433 (GNUNET_TIME_UNIT_MILLISECONDS, 100),
5434 &internal_continue_startup,
5440 * Callback for informing us about a successful
5441 * or unsuccessful churn start call.
5443 * @param cls a ChurnContext
5444 * @param id the peer identity of the started peer
5445 * @param cfg the handle to the configuration of the peer
5446 * @param d handle to the daemon for the peer
5447 * @param emsg NULL on success, non-NULL on failure
5451 churn_start_callback (void *cls, const struct GNUNET_PeerIdentity *id,
5452 const struct GNUNET_CONFIGURATION_Handle *cfg,
5453 struct GNUNET_TESTING_Daemon *d, const char *emsg)
5455 struct ChurnRestartContext *startup_ctx = cls;
5456 struct ChurnContext *churn_ctx = startup_ctx->churn_ctx;
5458 unsigned int total_left;
5459 char *error_message;
5461 error_message = NULL;
5464 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
5465 "Churn stop callback failed with error `%s'\n", emsg);
5466 churn_ctx->num_failed_start++;
5470 churn_ctx->num_to_start--;
5474 (churn_ctx->num_to_stop - churn_ctx->num_failed_stop) +
5475 (churn_ctx->num_to_start - churn_ctx->num_failed_start);
5477 if (total_left == 0)
5479 if ((churn_ctx->num_failed_stop > 0) || (churn_ctx->num_failed_start > 0))
5480 GNUNET_asprintf (&error_message,
5481 "Churn didn't complete successfully, %u peers failed to start %u peers failed to be stopped!",
5482 churn_ctx->num_failed_start, churn_ctx->num_failed_stop);
5483 churn_ctx->cb (churn_ctx->cb_cls, error_message);
5484 GNUNET_free_non_null (error_message);
5485 GNUNET_free (churn_ctx);
5486 GNUNET_free (startup_ctx);
5491 schedule_churn_restart (void *cls,
5492 const struct GNUNET_SCHEDULER_TaskContext *tc)
5494 struct PeerRestartContext *peer_restart_ctx = cls;
5495 struct ChurnRestartContext *startup_ctx = peer_restart_ctx->churn_restart_ctx;
5497 if (startup_ctx->outstanding > startup_ctx->pg->max_concurrent_ssh)
5498 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply
5499 (GNUNET_TIME_UNIT_MILLISECONDS, 100),
5500 &schedule_churn_restart, peer_restart_ctx);
5503 if (startup_ctx->churn_ctx->service != NULL)
5504 GNUNET_TESTING_daemon_start_stopped_service (peer_restart_ctx->daemon,
5507 startup_ctx->timeout,
5508 &churn_start_callback,
5511 GNUNET_TESTING_daemon_start_stopped (peer_restart_ctx->daemon,
5512 startup_ctx->timeout,
5513 &churn_start_callback, startup_ctx);
5514 GNUNET_free (peer_restart_ctx);
5519 * Callback for informing us about a successful
5520 * or unsuccessful churn start call.
5522 * @param cls a struct ServiceStartContext *startup_ctx
5523 * @param id the peer identity of the started peer
5524 * @param cfg the handle to the configuration of the peer
5525 * @param d handle to the daemon for the peer
5526 * @param emsg NULL on success, non-NULL on failure
5530 service_start_callback (void *cls, const struct GNUNET_PeerIdentity *id,
5531 const struct GNUNET_CONFIGURATION_Handle *cfg,
5532 struct GNUNET_TESTING_Daemon *d, const char *emsg)
5534 struct ServiceStartContext *startup_ctx = (struct ServiceStartContext *) cls;
5538 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
5539 "Service start failed with error `%s'\n", emsg);
5542 startup_ctx->outstanding--;
5543 startup_ctx->remaining--;
5545 if (startup_ctx->remaining == 0)
5547 startup_ctx->cb (startup_ctx->cb_cls, NULL);
5548 GNUNET_free (startup_ctx->service);
5549 GNUNET_free (startup_ctx);
5554 schedule_service_start (void *cls,
5555 const struct GNUNET_SCHEDULER_TaskContext *tc)
5557 struct PeerServiceStartContext *peer_ctx = cls;
5558 struct ServiceStartContext *startup_ctx = peer_ctx->start_ctx;
5560 if (startup_ctx->outstanding > startup_ctx->pg->max_concurrent_ssh)
5561 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply
5562 (GNUNET_TIME_UNIT_MILLISECONDS, 100),
5563 &schedule_service_start, peer_ctx);
5567 GNUNET_TESTING_daemon_start_service (peer_ctx->daemon, startup_ctx->service,
5568 startup_ctx->timeout,
5569 &service_start_callback, startup_ctx);
5570 GNUNET_free (peer_ctx);
5576 internal_start (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
5578 struct InternalStartContext *internal_context = cls;
5580 if ((tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN) != 0)
5585 if ((internal_context->peer->pg->starting <
5586 internal_context->peer->pg->max_concurrent_ssh) ||
5587 ((internal_context->hostname != NULL) &&
5588 (count_outstanding_at_host
5589 (internal_context->hostname,
5590 internal_context->peer->pg) <
5591 internal_context->peer->pg->max_concurrent_ssh)))
5593 if (internal_context->hostname != NULL)
5594 increment_outstanding_at_host (internal_context->hostname,
5595 internal_context->peer->pg);
5596 internal_context->peer->pg->starting++;
5597 internal_context->peer->daemon =
5598 GNUNET_TESTING_daemon_start (internal_context->peer->cfg,
5599 internal_context->timeout, GNUNET_NO,
5600 internal_context->hostname,
5601 internal_context->username,
5602 internal_context->sshport,
5603 internal_context->hostkey,
5604 &internal_hostkey_callback,
5606 &internal_startup_callback,
5611 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply
5612 (GNUNET_TIME_UNIT_MILLISECONDS, 100),
5613 &internal_start, internal_context);
5617 #if USE_START_HELPER
5619 struct PeerStartHelperContext
5621 struct GNUNET_TESTING_PeerGroup *pg;
5623 struct HostData *host;
5625 struct GNUNET_OS_Process *proc;
5629 check_peers_started (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
5631 struct PeerStartHelperContext *helper = cls;
5632 enum GNUNET_OS_ProcessStatusType type;
5635 GNUNET_TESTING_NotifyDaemonRunning cb;
5637 if (GNUNET_NO == GNUNET_OS_process_status (helper->proc, &type, &code)) /* Still running, wait some more! */
5639 GNUNET_SCHEDULER_add_delayed (GNUNET_CONSTANTS_EXEC_WAIT,
5640 &check_peers_started, helper);
5644 helper->pg->starting--;
5645 if (helper->pg->starting == 0) /* All peers have finished starting! */
5647 /* Call the peer started callback for each peer, set proper FSM state (?) */
5648 for (i = 0; i < helper->pg->total; i++)
5650 cb = helper->pg->peers[i].daemon->cb;
5651 helper->pg->peers[i].daemon->cb = NULL;
5652 helper->pg->peers[i].daemon->running = GNUNET_YES;
5653 helper->pg->peers[i].daemon->phase = SP_START_DONE;
5656 if ((type != GNUNET_OS_PROCESS_EXITED) || (code != 0))
5657 cb (helper->pg->peers[i].daemon->cb_cls,
5658 &helper->pg->peers[i].daemon->id,
5659 helper->pg->peers[i].daemon->cfg, helper->pg->peers[i].daemon,
5660 "Failed to execute peerStartHelper.pl, or return code bad!");
5662 cb (helper->pg->peers[i].daemon->cb_cls,
5663 &helper->pg->peers[i].daemon->id,
5664 helper->pg->peers[i].daemon->cfg, helper->pg->peers[i].daemon,
5671 GNUNET_OS_process_destroy (helper->proc);
5675 start_peer_helper (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
5677 struct PeerStartHelperContext *helper = cls;
5678 char *baseservicehome;
5682 /* ssh user@host peerStartHelper /path/to/basedirectory */
5683 GNUNET_assert (GNUNET_OK ==
5684 GNUNET_CONFIGURATION_get_value_string (helper->pg->cfg,
5685 "PATHS", "SERVICEHOME",
5687 GNUNET_asprintf (&tempdir, "%s/%s/", baseservicehome, helper->host->hostname);
5688 if (NULL != helper->host->username)
5689 GNUNET_asprintf (&arg, "%s@%s", helper->host->username,
5690 helper->host->hostname);
5692 GNUNET_asprintf (&arg, "%s", helper->host->hostname);
5694 /* FIXME: Doesn't support ssh_port option! */
5696 GNUNET_OS_start_process (GNUNET_NO, NULL, NULL, "ssh", "ssh", arg,
5697 "peerStartHelper.pl", tempdir, NULL);
5698 GNUNET_assert (helper->proc != NULL);
5699 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "starting peers with cmd ssh %s %s %s\n",
5700 arg, "peerStartHelper.pl", tempdir);
5701 GNUNET_SCHEDULER_add_now (&check_peers_started, helper);
5702 GNUNET_free (tempdir);
5703 GNUNET_free (baseservicehome);
5709 * Function which continues a peer group starting up
5710 * after successfully generating hostkeys for each peer.
5712 * @param pg the peer group to continue starting
5716 GNUNET_TESTING_daemons_continue_startup (struct GNUNET_TESTING_PeerGroup *pg)
5720 #if USE_START_HELPER
5721 if ((pg->num_hosts > 0) && (pg->hostkey_data != NULL))
5723 struct PeerStartHelperContext *helper;
5725 pg->starting = pg->num_hosts;
5726 for (i = 0; i < pg->num_hosts; i++)
5728 helper = GNUNET_malloc (sizeof (struct PeerStartHelperContext));
5730 helper->host = &pg->hosts[i];
5731 GNUNET_SCHEDULER_add_now (&start_peer_helper, helper);
5737 for (i = 0; i < pg->total; i++)
5739 pg->peers[i].startup_task =
5740 GNUNET_SCHEDULER_add_now (&internal_continue_startup,
5741 &pg->peers[i].internal_context);
5746 for (i = 0; i < pg->total; i++)
5748 pg->peers[i].startup_task =
5749 GNUNET_SCHEDULER_add_now (&internal_continue_startup,
5750 &pg->peers[i].internal_context);
5755 #if USE_START_HELPER
5757 call_hostkey_callbacks (void *cls,
5758 const struct GNUNET_SCHEDULER_TaskContext *tc)
5760 struct GNUNET_TESTING_PeerGroup *pg = cls;
5763 for (i = 0; i < pg->total; i++)
5765 if (pg->peers[i].internal_context.hostkey_callback != NULL)
5766 pg->peers[i].internal_context.hostkey_callback (pg->peers[i].
5767 internal_context.hostkey_cls,
5768 &pg->peers[i].daemon->id,
5769 pg->peers[i].daemon,
5773 if (pg->peers[0].internal_context.hostkey_callback == NULL)
5774 GNUNET_TESTING_daemons_continue_startup (pg);
5779 * Start count gnunet instances with the same set of transports and
5780 * applications. The port numbers (any option called "PORT") will be
5781 * adjusted to ensure that no two peers running on the same system
5782 * have the same port(s) in their respective configurations.
5784 * @param cfg configuration template to use
5785 * @param total number of daemons to start
5786 * @param max_concurrent_connections for testing, how many peers can
5787 * we connect to simultaneously
5788 * @param max_concurrent_ssh when starting with ssh, how many ssh
5789 * connections will we allow at once (based on remote hosts allowed!)
5790 * @param timeout total time allowed for peers to start
5791 * @param hostkey_callback function to call on each peers hostkey generation
5792 * if NULL, peers will be started by this call, if non-null,
5793 * GNUNET_TESTING_daemons_continue_startup must be called after
5794 * successful hostkey generation
5795 * @param hostkey_cls closure for hostkey callback
5796 * @param cb function to call on each daemon that was started
5797 * @param cb_cls closure for cb
5798 * @param connect_callback function to call each time two hosts are connected
5799 * @param connect_callback_cls closure for connect_callback
5800 * @param hostnames linked list of host structs to use to start peers on
5801 * (NULL to run on localhost only)
5803 * @return NULL on error, otherwise handle to control peer group
5805 struct GNUNET_TESTING_PeerGroup *
5806 GNUNET_TESTING_daemons_start (const struct GNUNET_CONFIGURATION_Handle *cfg,
5808 unsigned int max_concurrent_connections,
5809 unsigned int max_concurrent_ssh,
5810 struct GNUNET_TIME_Relative timeout,
5811 GNUNET_TESTING_NotifyHostkeyCreated
5812 hostkey_callback, void *hostkey_cls,
5813 GNUNET_TESTING_NotifyDaemonRunning cb,
5815 GNUNET_TESTING_NotifyConnection connect_callback,
5816 void *connect_callback_cls,
5817 const struct GNUNET_TESTING_Host *hostnames)
5819 struct GNUNET_TESTING_PeerGroup *pg;
5820 const struct GNUNET_TESTING_Host *hostpos;
5821 const char *hostname;
5822 const char *username;
5823 char *baseservicehome;
5824 char *newservicehome;
5826 char *hostkeys_file;
5829 struct GNUNET_DISK_FileHandle *fd;
5830 struct GNUNET_CONFIGURATION_Handle *pcfg;
5832 struct OutstandingSSH *ssh_entry;
5833 unsigned int hostcnt;
5840 uint64_t total_hostkeys;
5841 struct GNUNET_OS_Process *proc;
5852 pg = GNUNET_malloc (sizeof (struct GNUNET_TESTING_PeerGroup));
5854 pg->notify_connection = connect_callback;
5855 pg->notify_connection_cls = connect_callback_cls;
5857 pg->max_timeout = GNUNET_TIME_relative_to_absolute (timeout);
5858 pg->peers = GNUNET_malloc (total * sizeof (struct PeerData));
5859 pg->max_outstanding_connections = max_concurrent_connections;
5860 pg->max_concurrent_ssh = max_concurrent_ssh;
5861 if (NULL != hostnames)
5864 hostpos = hostnames;
5865 while (hostpos != NULL)
5867 hostpos = hostpos->next;
5870 pg->hosts = GNUNET_malloc (off * sizeof (struct HostData));
5873 hostpos = hostnames;
5874 while (hostpos != NULL)
5876 pg->hosts[off].minport = LOW_PORT;
5877 pg->hosts[off].hostname = GNUNET_strdup (hostpos->hostname);
5878 if (hostpos->username != NULL)
5879 pg->hosts[off].username = GNUNET_strdup (hostpos->username);
5880 pg->hosts[off].sshport = hostpos->port;
5881 hostpos = hostpos->next;
5891 pg->num_hosts = off;
5899 /* Create the servicehome directory for each remote peer */
5900 GNUNET_assert (GNUNET_OK ==
5901 GNUNET_CONFIGURATION_get_value_string (cfg, "PATHS",
5904 for (i = 0; i < pg->num_hosts; i++)
5906 ssh_entry = GNUNET_malloc (sizeof (struct OutstandingSSH));
5907 ssh_entry->hostname = pg->hosts[i].hostname; /* Don't free! */
5908 GNUNET_CONTAINER_DLL_insert (pg->ssh_head, pg->ssh_tail, ssh_entry);
5909 GNUNET_asprintf (&tmpdir, "%s/%s", baseservicehome, pg->hosts[i].hostname);
5910 if (NULL != pg->hosts[i].username)
5911 GNUNET_asprintf (&arg, "%s@%s", pg->hosts[i].username,
5912 pg->hosts[i].hostname);
5914 GNUNET_asprintf (&arg, "%s", pg->hosts[i].hostname);
5915 if (pg->hosts[i].sshport != 0)
5917 GNUNET_asprintf (&ssh_port_str, "%d", pg->hosts[i].sshport);
5919 GNUNET_OS_start_process (GNUNET_NO, NULL, NULL, "ssh", "ssh", "-P", ssh_port_str,
5921 arg, "mkdir -p", tmpdir, NULL);
5925 GNUNET_OS_start_process (GNUNET_NO, NULL, NULL, "ssh", "ssh", arg, "mkdir -p",
5927 GNUNET_assert (proc != NULL);
5928 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
5929 "Creating remote dir with command ssh %s %s %s\n", arg,
5930 " mkdir -p ", tmpdir);
5931 GNUNET_free (tmpdir);
5933 GNUNET_OS_process_wait (proc);
5934 GNUNET_OS_process_destroy (proc);
5936 GNUNET_free (baseservicehome);
5937 baseservicehome = NULL;
5940 GNUNET_CONFIGURATION_get_value_string (cfg, "TESTING_OLD", "HOSTKEYSFILE",
5943 if (GNUNET_YES != GNUNET_DISK_file_test (hostkeys_file))
5944 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
5945 _("Could not read hostkeys file!\n"));
5948 /* Check hostkey file size, read entire thing into memory */
5949 fd = GNUNET_DISK_file_open (hostkeys_file, GNUNET_DISK_OPEN_READ,
5950 GNUNET_DISK_PERM_NONE);
5953 GNUNET_log_strerror_file (GNUNET_ERROR_TYPE_ERROR, "open",
5955 GNUNET_free (hostkeys_file);
5956 for (i = 0; i < pg->num_hosts; i++)
5958 GNUNET_free (pg->hosts[i].hostname);
5959 GNUNET_free_non_null (pg->hosts[i].username);
5961 GNUNET_free (pg->peers);
5962 GNUNET_free (pg->hosts);
5967 if (GNUNET_OK != GNUNET_DISK_file_size (hostkeys_file, &fs, GNUNET_YES, GNUNET_YES))
5969 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
5970 "Found file size %llu for hostkeys\n", fs);
5971 if (0 != (fs % HOSTKEYFILESIZE))
5973 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
5974 "File size %llu seems incorrect for hostkeys...\n", fs);
5978 total_hostkeys = fs / HOSTKEYFILESIZE;
5979 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
5980 "Will read %llu hostkeys from file\n", total_hostkeys);
5981 pg->hostkey_data = GNUNET_malloc_large (fs);
5982 GNUNET_assert (fs == GNUNET_DISK_file_read (fd, pg->hostkey_data, fs));
5984 GNUNET_assert (GNUNET_OK == GNUNET_DISK_file_close (fd));
5986 GNUNET_free (hostkeys_file);
5989 for (off = 0; off < total; off++)
5993 hostname = pg->hosts[off % hostcnt].hostname;
5994 username = pg->hosts[off % hostcnt].username;
5995 sshport = pg->hosts[off % hostcnt].sshport;
5997 GNUNET_TESTING_create_cfg (cfg, off, &pg->hosts[off % hostcnt].minport, &upnum,
6005 pcfg = GNUNET_TESTING_create_cfg (cfg, off, &minport, &upnum, hostname, &fdnum);
6010 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
6012 ("Could not create configuration for peer number %u on `%s'!\n"),
6013 off, hostname == NULL ? "localhost" : hostname);
6018 GNUNET_CONFIGURATION_get_value_string (pcfg, "PATHS", "SERVICEHOME",
6021 if (hostname != NULL)
6022 GNUNET_asprintf (&newservicehome, "%s/%s/%d/", baseservicehome,
6025 GNUNET_asprintf (&newservicehome, "%s/%d/", baseservicehome, off);
6026 GNUNET_free (baseservicehome);
6027 baseservicehome = NULL;
6031 tmpdir = getenv ("TMPDIR");
6032 tmpdir = tmpdir ? tmpdir : "/tmp";
6033 if (hostname != NULL)
6034 GNUNET_asprintf (&newservicehome, "%s/%s/%s/%d/", tmpdir, hostname,
6035 "gnunet-testing-test-test", off);
6037 GNUNET_asprintf (&newservicehome, "%s/%s/%d/", tmpdir,
6038 "gnunet-testing-test-test", off);
6040 GNUNET_CONFIGURATION_set_value_string (pcfg, "PATHS", "SERVICEHOME",
6042 GNUNET_free (newservicehome);
6043 pg->peers[off].cfg = pcfg;
6044 pg->peers[off].pg = pg;
6045 pg->peers[off].internal_context.peer = &pg->peers[off];
6046 pg->peers[off].internal_context.timeout = timeout;
6047 pg->peers[off].internal_context.hostname = hostname;
6048 pg->peers[off].internal_context.username = username;
6049 pg->peers[off].internal_context.sshport = sshport;
6050 if (pg->hostkey_data != NULL)
6051 pg->peers[off].internal_context.hostkey =
6052 &pg->hostkey_data[off * HOSTKEYFILESIZE];
6053 pg->peers[off].internal_context.hostkey_callback = hostkey_callback;
6054 pg->peers[off].internal_context.hostkey_cls = hostkey_cls;
6055 pg->peers[off].internal_context.start_cb = cb;
6056 pg->peers[off].internal_context.start_cb_cls = cb_cls;
6057 #if !USE_START_HELPER
6058 GNUNET_SCHEDULER_add_now (&internal_start,
6059 &pg->peers[off].internal_context);
6061 if ((pg->hostkey_data != NULL) && (hostcnt > 0))
6063 pg->peers[off].daemon =
6064 GNUNET_TESTING_daemon_start (pcfg, timeout, GNUNET_YES, hostname,
6066 pg->peers[off].internal_context.hostkey,
6067 &internal_hostkey_callback,
6068 &pg->peers[off].internal_context,
6069 &internal_startup_callback,
6070 &pg->peers[off].internal_context);
6072 * At this point, given that we had a hostkeyfile,
6073 * we can call the hostkey callback!
6074 * But first, we should copy (rsync) all of the configs
6075 * and hostkeys to the remote peers. Then let topology
6076 * creation happen, then call the peer start helper processes,
6077 * then set pg->whatever_phase for each peer and let them
6078 * enter the fsm to get the HELLO's for peers and start connecting.
6083 GNUNET_SCHEDULER_add_now (&internal_start,
6084 &pg->peers[off].internal_context);
6090 #if USE_START_HELPER /* Now the peergroup has been set up, hostkeys and configs written to files. */
6091 if ((pg->hostkey_data != NULL) && (hostcnt > 0))
6093 for (off = 0; off < hostcnt; off++)
6098 hostname = pg->hosts[off % hostcnt].hostname;
6099 username = pg->hosts[off % hostcnt].username;
6100 sshport = pg->hosts[off % hostcnt].sshport;
6110 GNUNET_CONFIGURATION_get_value_string (cfg, "PATHS", "SERVICEHOME",
6113 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "baseservice home is %s\n",
6115 if (hostname != NULL)
6116 GNUNET_asprintf (&newservicehome, "%s/%s/", baseservicehome,
6119 GNUNET_asprintf (&newservicehome, "%s/", baseservicehome);
6120 GNUNET_free (baseservicehome);
6121 baseservicehome = NULL;
6125 tmpdir = getenv ("TMPDIR");
6126 tmpdir = tmpdir ? tmpdir : "/tmp";
6127 if (hostname != NULL)
6128 GNUNET_asprintf (&newservicehome, "%s/%s/%s/", tmpdir, hostname,
6129 "gnunet-testing-test-test");
6131 GNUNET_asprintf (&newservicehome, "%s/%s/", tmpdir,
6132 "gnunet-testing-test-test", off);
6135 if (NULL != username)
6136 GNUNET_asprintf (&arg, "%s@%s:%s", username, pg->hosts[off].hostname,
6139 GNUNET_asprintf (&arg, "%s:%s", pg->hosts[off].hostname,
6142 /* FIXME: Doesn't support ssh_port option! */
6144 GNUNET_OS_start_process (GNUNET_NO, NULL, NULL, "rsync", "rsync", "-r",
6145 newservicehome, arg, NULL);
6146 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
6147 "copying directory with command rsync -r %s %s\n",
6148 newservicehome, arg);
6149 GNUNET_free (newservicehome);
6153 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
6155 ("Could not start `%s' process to copy configuration directory.\n"),
6159 GNUNET_OS_process_wait (proc);
6160 GNUNET_OS_process_destroy (proc);
6162 /* Now all the configuration files and hostkeys are copied to the remote host. Call the hostkey callback for each peer! */
6163 GNUNET_SCHEDULER_add_now (&call_hostkey_callbacks, pg);
6170 * Get a daemon by number, so callers don't have to do nasty
6171 * offsetting operation.
6173 struct GNUNET_TESTING_Daemon *
6174 GNUNET_TESTING_daemon_get (struct GNUNET_TESTING_PeerGroup *pg,
6175 unsigned int position)
6177 if (position < pg->total)
6178 return pg->peers[position].daemon;
6183 * Get a daemon by peer identity, so callers can
6184 * retrieve the daemon without knowing it's offset.
6186 * @param pg the peer group to retrieve the daemon from
6187 * @param peer_id the peer identity of the daemon to retrieve
6189 * @return the daemon on success, or NULL if no such peer identity is found
6191 struct GNUNET_TESTING_Daemon *
6192 GNUNET_TESTING_daemon_get_by_id (struct GNUNET_TESTING_PeerGroup *pg,
6193 const struct GNUNET_PeerIdentity *peer_id)
6197 for (i = 0; i < pg->total; i++)
6200 memcmp (&pg->peers[i].daemon->id, peer_id,
6201 sizeof (struct GNUNET_PeerIdentity)))
6202 return pg->peers[i].daemon;
6208 * Prototype of a function that will be called when a
6209 * particular operation was completed the testing library.
6211 * @param cls closure (a struct RestartContext)
6212 * @param id id of the peer that was restarted
6213 * @param cfg handle to the configuration of the peer
6214 * @param d handle to the daemon that was restarted
6215 * @param emsg NULL on success
6218 restart_callback (void *cls, const struct GNUNET_PeerIdentity *id,
6219 const struct GNUNET_CONFIGURATION_Handle *cfg,
6220 struct GNUNET_TESTING_Daemon *d, const char *emsg)
6222 struct RestartContext *restart_context = cls;
6226 restart_context->peers_restarted++;
6230 restart_context->peers_restart_failed++;
6233 if (restart_context->peers_restarted == restart_context->peer_group->total)
6235 restart_context->callback (restart_context->callback_cls, NULL);
6236 GNUNET_free (restart_context);
6238 else if (restart_context->peers_restart_failed +
6239 restart_context->peers_restarted ==
6240 restart_context->peer_group->total)
6242 restart_context->callback (restart_context->callback_cls,
6243 "Failed to restart peers!");
6244 GNUNET_free (restart_context);
6250 * Callback for informing us about a successful
6251 * or unsuccessful churn stop call.
6253 * @param cls a ChurnContext
6254 * @param emsg NULL on success, non-NULL on failure
6258 churn_stop_callback (void *cls, const char *emsg)
6260 struct ShutdownContext *shutdown_ctx = cls;
6261 struct ChurnContext *churn_ctx = shutdown_ctx->cb_cls;
6262 unsigned int total_left;
6263 char *error_message;
6265 error_message = NULL;
6266 shutdown_ctx->outstanding--;
6270 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
6271 "Churn stop callback failed with error `%s'\n", emsg);
6272 churn_ctx->num_failed_stop++;
6276 churn_ctx->num_to_stop--;
6280 (churn_ctx->num_to_stop - churn_ctx->num_failed_stop) +
6281 (churn_ctx->num_to_start - churn_ctx->num_failed_start);
6283 if (total_left == 0)
6285 if ((churn_ctx->num_failed_stop > 0) || (churn_ctx->num_failed_start > 0))
6287 GNUNET_asprintf (&error_message,
6288 "Churn didn't complete successfully, %u peers failed to start %u peers failed to be stopped!",
6289 churn_ctx->num_failed_start, churn_ctx->num_failed_stop);
6291 churn_ctx->cb (churn_ctx->cb_cls, error_message);
6292 GNUNET_free_non_null (error_message);
6293 GNUNET_free (churn_ctx);
6294 GNUNET_free (shutdown_ctx);
6299 * Count the number of running peers.
6301 * @param pg handle for the peer group
6303 * @return the number of currently running peers in the peer group
6306 GNUNET_TESTING_daemons_running (struct GNUNET_TESTING_PeerGroup *pg)
6309 unsigned int running = 0;
6311 for (i = 0; i < pg->total; i++)
6313 if (pg->peers[i].daemon->running == GNUNET_YES)
6315 GNUNET_assert (running != -1);
6323 * Task to rate limit the number of outstanding peer shutdown
6324 * requests. This is necessary for making sure we don't do
6325 * too many ssh connections at once, but is generally nicer
6326 * to any system as well (graduated task starts, as opposed
6327 * to calling gnunet-arm N times all at once).
6330 schedule_churn_shutdown_task (void *cls,
6331 const struct GNUNET_SCHEDULER_TaskContext *tc)
6333 struct PeerShutdownContext *peer_shutdown_ctx = cls;
6334 struct ShutdownContext *shutdown_ctx;
6335 struct ChurnContext *churn_ctx;
6337 GNUNET_assert (peer_shutdown_ctx != NULL);
6338 shutdown_ctx = peer_shutdown_ctx->shutdown_ctx;
6339 GNUNET_assert (shutdown_ctx != NULL);
6340 churn_ctx = (struct ChurnContext *) shutdown_ctx->cb_cls;
6341 if (shutdown_ctx->outstanding > churn_ctx->pg->max_concurrent_ssh)
6342 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply
6343 (GNUNET_TIME_UNIT_MILLISECONDS, 100),
6344 &schedule_churn_shutdown_task,
6348 shutdown_ctx->outstanding++;
6349 if (churn_ctx->service != NULL)
6350 GNUNET_TESTING_daemon_stop_service (peer_shutdown_ctx->daemon,
6352 shutdown_ctx->timeout,
6353 shutdown_ctx->cb, shutdown_ctx);
6355 GNUNET_TESTING_daemon_stop (peer_shutdown_ctx->daemon,
6356 shutdown_ctx->timeout, shutdown_ctx->cb,
6357 shutdown_ctx, GNUNET_NO, GNUNET_YES);
6358 GNUNET_free (peer_shutdown_ctx);
6364 * Simulate churn by stopping some peers (and possibly
6365 * re-starting others if churn is called multiple times). This
6366 * function can only be used to create leave-join churn (peers "never"
6367 * leave for good). First "voff" random peers that are currently
6368 * online will be taken offline; then "von" random peers that are then
6369 * offline will be put back online. No notifications will be
6370 * generated for any of these operations except for the callback upon
6373 * @param pg handle for the peer group
6374 * @param service the service to churn off/on, NULL to churn peer
6375 * @param voff number of peers that should go offline
6376 * @param von number of peers that should come back online;
6377 * must be zero on first call (since "testbed_start"
6378 * always starts all of the peers)
6379 * @param timeout how long to wait for operations to finish before
6381 * @param cb function to call at the end
6382 * @param cb_cls closure for cb
6385 GNUNET_TESTING_daemons_churn (struct GNUNET_TESTING_PeerGroup *pg,
6386 char *service, unsigned int voff,
6388 struct GNUNET_TIME_Relative timeout,
6389 GNUNET_TESTING_NotifyCompletion cb, void *cb_cls)
6391 struct ChurnContext *churn_ctx;
6392 struct ShutdownContext *shutdown_ctx;
6393 struct PeerShutdownContext *peer_shutdown_ctx;
6394 struct PeerRestartContext *peer_restart_ctx;
6395 struct ChurnRestartContext *churn_startup_ctx;
6397 unsigned int running;
6398 unsigned int stopped;
6399 unsigned int total_running;
6400 unsigned int total_stopped;
6402 unsigned int *running_arr;
6403 unsigned int *stopped_arr;
6404 unsigned int *running_permute;
6405 unsigned int *stopped_permute;
6408 shutdown_ctx = NULL;
6409 peer_shutdown_ctx = NULL;
6410 peer_restart_ctx = NULL;
6411 churn_startup_ctx = NULL;
6416 if ((von == 0) && (voff == 0)) /* No peers at all? */
6422 for (i = 0; i < pg->total; i++)
6424 if (service == NULL)
6426 if (pg->peers[i].daemon->running == GNUNET_YES)
6428 GNUNET_assert (running != -1);
6433 GNUNET_assert (stopped != -1);
6439 /* FIXME: make churned services a list! */
6440 pos = pg->peers[i].daemon->churned_services;
6441 /* FIXME: while (pos != NULL) */
6445 if (0 == strcasecmp (pos, service))
6451 GNUNET_assert (stopped != -1);
6453 /* FIXME: pos = pos->next; */
6457 GNUNET_assert (running != -1);
6465 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
6466 "Trying to stop more peers (%d) than are currently running (%d)!\n",
6468 cb (cb_cls, "Trying to stop more peers than are currently running!");
6474 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
6475 "Trying to start more peers (%d) than are currently stopped (%d)!\n",
6477 cb (cb_cls, "Trying to start more peers than are currently stopped!");
6481 churn_ctx = GNUNET_malloc (sizeof (struct ChurnContext));
6483 if (service != NULL)
6484 churn_ctx->service = GNUNET_strdup (service);
6487 running_arr = GNUNET_malloc (running * sizeof (unsigned int));
6491 stopped_arr = GNUNET_malloc (stopped * sizeof (unsigned int));
6493 running_permute = NULL;
6494 stopped_permute = NULL;
6498 GNUNET_CRYPTO_random_permute (GNUNET_CRYPTO_QUALITY_WEAK, running);
6501 GNUNET_CRYPTO_random_permute (GNUNET_CRYPTO_QUALITY_WEAK, stopped);
6503 total_running = running;
6504 total_stopped = stopped;
6508 churn_ctx->num_to_start = von;
6509 churn_ctx->num_to_stop = voff;
6511 churn_ctx->cb_cls = cb_cls;
6514 for (i = 0; i < pg->total; i++)
6516 if (service == NULL)
6518 if (pg->peers[i].daemon->running == GNUNET_YES)
6520 GNUNET_assert ((running_arr != NULL) && (total_running > running));
6521 running_arr[running] = i;
6526 GNUNET_assert ((stopped_arr != NULL) && (total_stopped > stopped));
6527 stopped_arr[stopped] = i;
6533 /* FIXME: make churned services a list! */
6534 pos = pg->peers[i].daemon->churned_services;
6535 /* FIXME: while (pos != NULL) */
6538 GNUNET_assert ((stopped_arr != NULL) && (total_stopped > stopped));
6539 stopped_arr[stopped] = i;
6541 /* FIXME: pos = pos->next; */
6545 GNUNET_assert ((running_arr != NULL) && (total_running > running));
6546 running_arr[running] = i;
6552 GNUNET_assert (running >= voff);
6555 shutdown_ctx = GNUNET_malloc (sizeof (struct ShutdownContext));
6556 shutdown_ctx->cb = &churn_stop_callback;
6557 shutdown_ctx->cb_cls = churn_ctx;
6558 shutdown_ctx->total_peers = voff;
6559 shutdown_ctx->timeout = timeout;
6562 for (i = 0; i < voff; i++)
6564 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Stopping peer %d!\n",
6565 running_arr[running_permute[i]]);
6566 GNUNET_assert (running_arr != NULL);
6567 peer_shutdown_ctx = GNUNET_malloc (sizeof (struct PeerShutdownContext));
6568 peer_shutdown_ctx->daemon =
6569 pg->peers[running_arr[running_permute[i]]].daemon;
6570 peer_shutdown_ctx->shutdown_ctx = shutdown_ctx;
6571 GNUNET_SCHEDULER_add_now (&schedule_churn_shutdown_task, peer_shutdown_ctx);
6574 GNUNET_assert (stopped >= von);
6577 churn_startup_ctx = GNUNET_malloc (sizeof (struct ChurnRestartContext));
6578 churn_startup_ctx->churn_ctx = churn_ctx;
6579 churn_startup_ctx->timeout = timeout;
6580 churn_startup_ctx->pg = pg;
6582 for (i = 0; i < von; i++)
6584 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Starting up peer %d!\n",
6585 stopped_arr[stopped_permute[i]]);
6586 GNUNET_assert (stopped_arr != NULL);
6587 peer_restart_ctx = GNUNET_malloc (sizeof (struct PeerRestartContext));
6588 peer_restart_ctx->churn_restart_ctx = churn_startup_ctx;
6589 peer_restart_ctx->daemon =
6590 pg->peers[stopped_arr[stopped_permute[i]]].daemon;
6591 GNUNET_SCHEDULER_add_now (&schedule_churn_restart, peer_restart_ctx);
6594 GNUNET_free_non_null (running_arr);
6595 GNUNET_free_non_null (stopped_arr);
6596 GNUNET_free_non_null (running_permute);
6597 GNUNET_free_non_null (stopped_permute);
6601 * Start a given service for each of the peers in the peer group.
6603 * @param pg handle for the peer group
6604 * @param service the service to start
6605 * @param timeout how long to wait for operations to finish before
6607 * @param cb function to call once finished
6608 * @param cb_cls closure for cb
6612 GNUNET_TESTING_daemons_start_service (struct GNUNET_TESTING_PeerGroup *pg,
6614 struct GNUNET_TIME_Relative timeout,
6615 GNUNET_TESTING_NotifyCompletion cb,
6618 struct ServiceStartContext *start_ctx;
6619 struct PeerServiceStartContext *peer_start_ctx;
6622 GNUNET_assert (service != NULL);
6624 start_ctx = GNUNET_malloc (sizeof (struct ServiceStartContext));
6626 start_ctx->remaining = pg->total;
6628 start_ctx->cb_cls = cb_cls;
6629 start_ctx->service = GNUNET_strdup (service);
6630 start_ctx->timeout = timeout;
6632 for (i = 0; i < pg->total; i++)
6634 peer_start_ctx = GNUNET_malloc (sizeof (struct PeerServiceStartContext));
6635 peer_start_ctx->start_ctx = start_ctx;
6636 peer_start_ctx->daemon = pg->peers[i].daemon;
6637 GNUNET_SCHEDULER_add_now (&schedule_service_start, peer_start_ctx);
6642 * Restart all peers in the given group.
6644 * @param pg the handle to the peer group
6645 * @param callback function to call on completion (or failure)
6646 * @param callback_cls closure for the callback function
6649 GNUNET_TESTING_daemons_restart (struct GNUNET_TESTING_PeerGroup *pg,
6650 GNUNET_TESTING_NotifyCompletion callback,
6653 struct RestartContext *restart_context;
6658 restart_context = GNUNET_malloc (sizeof (struct RestartContext));
6659 restart_context->peer_group = pg;
6660 restart_context->peers_restarted = 0;
6661 restart_context->callback = callback;
6662 restart_context->callback_cls = callback_cls;
6664 for (off = 0; off < pg->total; off++)
6666 GNUNET_TESTING_daemon_restart (pg->peers[off].daemon, &restart_callback,
6674 * Start or stop an individual peer from the given group.
6676 * @param pg handle to the peer group
6677 * @param offset which peer to start or stop
6678 * @param desired_status GNUNET_YES to have it running, GNUNET_NO to stop it
6679 * @param timeout how long to wait for shutdown
6680 * @param cb function to call at the end
6681 * @param cb_cls closure for cb
6684 GNUNET_TESTING_daemons_vary (struct GNUNET_TESTING_PeerGroup *pg,
6685 unsigned int offset, int desired_status,
6686 struct GNUNET_TIME_Relative timeout,
6687 GNUNET_TESTING_NotifyCompletion cb, void *cb_cls)
6689 struct ShutdownContext *shutdown_ctx;
6690 struct ChurnRestartContext *startup_ctx;
6691 struct ChurnContext *churn_ctx;
6693 if (GNUNET_NO == desired_status)
6695 if (NULL != pg->peers[offset].daemon)
6697 shutdown_ctx = GNUNET_malloc (sizeof (struct ShutdownContext));
6698 churn_ctx = GNUNET_malloc (sizeof (struct ChurnContext));
6699 churn_ctx->num_to_start = 0;
6700 churn_ctx->num_to_stop = 1;
6702 churn_ctx->cb_cls = cb_cls;
6703 shutdown_ctx->cb_cls = churn_ctx;
6704 GNUNET_TESTING_daemon_stop (pg->peers[offset].daemon, timeout,
6705 &churn_stop_callback, shutdown_ctx, GNUNET_NO,
6709 else if (GNUNET_YES == desired_status)
6711 if (NULL == pg->peers[offset].daemon)
6713 startup_ctx = GNUNET_malloc (sizeof (struct ChurnRestartContext));
6714 churn_ctx = GNUNET_malloc (sizeof (struct ChurnContext));
6715 churn_ctx->num_to_start = 1;
6716 churn_ctx->num_to_stop = 0;
6718 churn_ctx->cb_cls = cb_cls;
6719 startup_ctx->churn_ctx = churn_ctx;
6720 GNUNET_TESTING_daemon_start_stopped (pg->peers[offset].daemon, timeout,
6721 &churn_start_callback, startup_ctx);
6730 * Callback for shutting down peers in a peer group.
6732 * @param cls closure (struct ShutdownContext)
6733 * @param emsg NULL on success
6736 internal_shutdown_callback (void *cls, const char *emsg)
6738 struct PeerShutdownContext *peer_shutdown_ctx = cls;
6739 struct ShutdownContext *shutdown_ctx = peer_shutdown_ctx->shutdown_ctx;
6742 struct OutstandingSSH *ssh_pos;
6744 shutdown_ctx->outstanding--;
6745 if (peer_shutdown_ctx->daemon->hostname != NULL)
6746 decrement_outstanding_at_host (peer_shutdown_ctx->daemon->hostname,
6751 shutdown_ctx->peers_down++;
6755 GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, "internal_shutdown_callback",
6756 "Failed to stop a peer: %s\n", emsg);
6757 shutdown_ctx->peers_failed++;
6760 if ((shutdown_ctx->cb != NULL) &&
6761 (shutdown_ctx->peers_down + shutdown_ctx->peers_failed ==
6762 shutdown_ctx->total_peers))
6764 if (shutdown_ctx->peers_failed > 0)
6765 shutdown_ctx->cb (shutdown_ctx->cb_cls,
6766 "Not all peers successfully shut down!");
6768 shutdown_ctx->cb (shutdown_ctx->cb_cls, NULL);
6770 for (i = 0; i < shutdown_ctx->pg->total; i++)
6772 if (shutdown_ctx->pg->peers[i].startup_task != GNUNET_SCHEDULER_NO_TASK)
6773 GNUNET_SCHEDULER_cancel (shutdown_ctx->pg->peers[i].startup_task);
6775 GNUNET_free (shutdown_ctx->pg->peers);
6776 GNUNET_free_non_null (shutdown_ctx->pg->hostkey_data);
6777 for (off = 0; off < shutdown_ctx->pg->num_hosts; off++)
6779 GNUNET_free (shutdown_ctx->pg->hosts[off].hostname);
6780 GNUNET_free_non_null (shutdown_ctx->pg->hosts[off].username);
6782 GNUNET_free_non_null (shutdown_ctx->pg->hosts);
6783 while (NULL != (ssh_pos = shutdown_ctx->pg->ssh_head))
6785 GNUNET_CONTAINER_DLL_remove (shutdown_ctx->pg->ssh_head,
6786 shutdown_ctx->pg->ssh_tail, ssh_pos);
6787 GNUNET_free (ssh_pos);
6789 GNUNET_free (shutdown_ctx->pg);
6790 GNUNET_free (shutdown_ctx);
6792 GNUNET_free (peer_shutdown_ctx);
6797 * Task to rate limit the number of outstanding peer shutdown
6798 * requests. This is necessary for making sure we don't do
6799 * too many ssh connections at once, but is generally nicer
6800 * to any system as well (graduated task starts, as opposed
6801 * to calling gnunet-arm N times all at once).
6804 schedule_shutdown_task (void *cls,
6805 const struct GNUNET_SCHEDULER_TaskContext *tc)
6807 struct PeerShutdownContext *peer_shutdown_ctx = cls;
6808 struct ShutdownContext *shutdown_ctx;
6809 struct GNUNET_TESTING_Daemon *d;
6811 GNUNET_assert (peer_shutdown_ctx != NULL);
6812 d = peer_shutdown_ctx->daemon;
6813 shutdown_ctx = peer_shutdown_ctx->shutdown_ctx;
6814 GNUNET_assert (shutdown_ctx != NULL);
6816 if ((shutdown_ctx->outstanding < shutdown_ctx->pg->max_concurrent_ssh) ||
6817 ((d->hostname != NULL) &&
6818 (count_outstanding_at_host
6820 shutdown_ctx->pg) < shutdown_ctx->pg->max_concurrent_ssh)))
6822 if (d->hostname != NULL)
6823 increment_outstanding_at_host (d->hostname,
6825 shutdown_ctx->outstanding++;
6826 GNUNET_TESTING_daemon_stop (d,
6827 shutdown_ctx->timeout,
6828 &internal_shutdown_callback, peer_shutdown_ctx,
6829 shutdown_ctx->delete_files, GNUNET_NO);
6832 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply
6833 (GNUNET_TIME_UNIT_MILLISECONDS, 100),
6834 &schedule_shutdown_task, peer_shutdown_ctx);
6839 * Read a testing hosts file based on a configuration.
6840 * Returns a DLL of hosts (caller must free!) on success
6841 * or NULL on failure.
6843 * @param cfg a configuration with a testing section
6845 * @return DLL of hosts on success, NULL on failure
6847 struct GNUNET_TESTING_Host *
6848 GNUNET_TESTING_hosts_load (const struct GNUNET_CONFIGURATION_Handle *cfg)
6850 struct GNUNET_TESTING_Host *hosts;
6851 struct GNUNET_TESTING_Host *temphost;
6859 /* Check for a hostfile containing user@host:port triples */
6861 GNUNET_CONFIGURATION_get_value_string (cfg, "testing_old", "hostfile",
6868 if (hostfile != NULL)
6870 if (GNUNET_OK != GNUNET_DISK_file_test (hostfile))
6871 GNUNET_DISK_fn_write (hostfile, NULL, 0,
6872 GNUNET_DISK_PERM_USER_READ |
6873 GNUNET_DISK_PERM_USER_WRITE);
6874 if ((0 != STAT (hostfile, &frstat)) || (frstat.st_size == 0))
6876 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
6877 "Could not open file specified for host list, ending test!");
6878 GNUNET_free (hostfile);
6882 data = GNUNET_malloc_large (frstat.st_size);
6883 GNUNET_assert (data != NULL);
6884 if (frstat.st_size != GNUNET_DISK_fn_read (hostfile, data, frstat.st_size))
6886 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
6887 "Could not read file %s specified for host list, ending test!",
6889 GNUNET_free (hostfile);
6894 GNUNET_free_non_null (hostfile);
6898 while (count < frstat.st_size - 1)
6901 if (((data[count] == '\n')) && (buf != &data[count]))
6904 temphost = GNUNET_malloc (sizeof (struct GNUNET_TESTING_Host));
6906 SSCANF (buf, "%a[a-zA-Z0-9_]@%a[a-zA-Z0-9.]:%hd",
6907 &temphost->username, &temphost->hostname, &temphost->port);
6910 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
6911 "Successfully read host %s, port %d and user %s from file\n",
6912 temphost->hostname, temphost->port, temphost->username);
6916 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
6917 "Error reading line `%s' in hostfile\n", buf);
6918 GNUNET_free (temphost);
6919 buf = &data[count + 1];
6922 temphost->next = hosts;
6924 buf = &data[count + 1];
6926 else if ((data[count] == '\n') || (data[count] == '\0'))
6927 buf = &data[count + 1];
6930 GNUNET_free_non_null (data);
6936 * Shutdown all peers started in the given group.
6938 * @param pg handle to the peer group
6939 * @param timeout how long to wait for shutdown
6940 * @param cb callback to notify upon success or failure
6941 * @param cb_cls closure for cb
6944 GNUNET_TESTING_daemons_stop (struct GNUNET_TESTING_PeerGroup *pg,
6945 struct GNUNET_TIME_Relative timeout,
6946 GNUNET_TESTING_NotifyCompletion cb, void *cb_cls)
6949 struct ShutdownContext *shutdown_ctx;
6950 struct PeerShutdownContext *peer_shutdown_ctx;
6953 struct PeerConnection *conn_iter;
6954 struct PeerConnection *temp_conn;
6956 struct ConnectContext *cc;
6958 GNUNET_assert (pg->total > 0);
6959 while (NULL != (cc = pg->cc_head))
6961 GNUNET_CONTAINER_DLL_remove (pg->cc_head, pg->cc_tail, cc);
6962 if (GNUNET_SCHEDULER_NO_TASK != cc->task)
6963 GNUNET_SCHEDULER_cancel (cc->task);
6965 GNUNET_TESTING_daemons_connect_cancel (cc->cc);
6969 shutdown_ctx = GNUNET_malloc (sizeof (struct ShutdownContext));
6970 shutdown_ctx->delete_files =
6971 GNUNET_CONFIGURATION_get_value_yesno (pg->cfg, "TESTING_OLD", "DELETE_FILES");
6972 shutdown_ctx->cb = cb;
6973 shutdown_ctx->cb_cls = cb_cls;
6974 shutdown_ctx->total_peers = pg->total;
6975 shutdown_ctx->timeout = timeout;
6976 shutdown_ctx->pg = pg;
6978 for (off = 0; off < pg->total; off++)
6980 GNUNET_assert (NULL != pg->peers[off].daemon);
6981 peer_shutdown_ctx = GNUNET_malloc (sizeof (struct PeerShutdownContext));
6982 peer_shutdown_ctx->daemon = pg->peers[off].daemon;
6983 peer_shutdown_ctx->shutdown_ctx = shutdown_ctx;
6984 GNUNET_SCHEDULER_add_now (&schedule_shutdown_task, peer_shutdown_ctx);
6986 if (NULL != pg->peers[off].cfg)
6988 GNUNET_CONFIGURATION_destroy (pg->peers[off].cfg);
6989 pg->peers[off].cfg = NULL;
6992 // FIXME Do DLL remove for all pg->peers[off].LIST
6993 conn_iter = pg->peers[off].allowed_peers_head;
6994 while (conn_iter != NULL)
6996 temp_conn = conn_iter->next;
6997 GNUNET_free (conn_iter);
6998 conn_iter = temp_conn;
7000 pg->peers[off].allowed_peers_head = NULL;
7002 conn_iter = pg->peers[off].connect_peers_head;
7003 while (conn_iter != NULL)
7005 temp_conn = conn_iter->next;
7006 GNUNET_free (conn_iter);
7007 conn_iter = temp_conn;
7009 pg->peers[off].connect_peers_head = NULL;
7011 conn_iter = pg->peers[off].blacklisted_peers_head;
7012 while (conn_iter != NULL)
7014 temp_conn = conn_iter->next;
7015 GNUNET_free (conn_iter);
7016 conn_iter = temp_conn;
7018 pg->peers[off].blacklisted_peers_head = NULL;
7020 conn_iter = pg->peers[off].connect_peers_working_set_head;
7021 while (conn_iter != NULL)
7023 temp_conn = conn_iter->next;
7024 GNUNET_free (conn_iter);
7025 conn_iter = temp_conn;
7027 pg->peers[off].connect_peers_working_set_head = NULL;
7029 if (pg->peers[off].allowed_peers != NULL)
7030 GNUNET_CONTAINER_multihashmap_destroy (pg->peers[off].allowed_peers);
7031 if (pg->peers[off].connect_peers != NULL)
7032 GNUNET_CONTAINER_multihashmap_destroy (pg->peers[off].connect_peers);
7033 if (pg->peers[off].blacklisted_peers != NULL)
7034 GNUNET_CONTAINER_multihashmap_destroy (pg->peers[off].blacklisted_peers);
7039 /* end of testing_group.c */