2 This file is part of GNUnet
3 (C) 2008, 2009 Christian Grothoff (and other contributing authors)
5 GNUnet is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published
7 by the Free Software Foundation; either version 3, or (at your
8 option) any later version.
10 GNUnet is distributed in the hope that it will be useful, but
11 WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with GNUnet; see the file COPYING. If not, write to the
17 Free Software Foundation, Inc., 59 Temple Place - Suite 330,
18 Boston, MA 02111-1307, USA.
22 * @file testing/testing_group.c
23 * @brief convenience API for writing testcases for GNUnet
24 * @author Nathan Evans
25 * @author Christian Grothoff
28 #include "gnunet_constants.h"
29 #include "gnunet_arm_service.h"
30 #include "gnunet_testing_lib.h"
31 #include "gnunet_core_service.h"
33 #define VERBOSE_TESTING GNUNET_EXTRA_LOGGING
35 #define VERBOSE_TOPOLOGY GNUNET_EXTRA_LOGGING
37 #define DEBUG_CHURN GNUNET_EXTRA_LOGGING
39 #define USE_START_HELPER GNUNET_YES
43 /* Before connecting peers, send all of the HELLOs */
44 #define USE_SEND_HELLOS GNUNET_NO
46 #define TOPOLOGY_HACK GNUNET_YES
50 * Lowest port used for GNUnet testing. Should be high enough to not
51 * conflict with other applications running on the hosts but be low
52 * enough to not conflict with client-ports (typically starting around
55 #define LOW_PORT 12000
58 * Highest port used for GNUnet testing. Should be low enough to not
59 * conflict with the port range for "local" ports (client apps; see
60 * /proc/sys/net/ipv4/ip_local_port_range on Linux for example).
62 #define HIGH_PORT 56000
64 /* Maximum time to delay connect attempt */
65 #define MAX_CONNECT_DELAY 300
68 * Which list of peers do we need to modify?
72 /** Modify allowed peers */
75 /** Modify connect peers */
78 /** Modify blacklist peers */
81 /** Modify workingset peers */
86 * Prototype of a function called whenever two peers would be connected
87 * in a certain topology.
89 typedef unsigned int (*GNUNET_TESTING_ConnectionProcessor) (struct
90 GNUNET_TESTING_PeerGroup
98 * Context for handling churning a peer group
103 * The peergroup we are dealing with.
105 struct GNUNET_TESTING_PeerGroup *pg;
108 * Name of the service to churn on/off, NULL
109 * to churn entire peer.
114 * Callback used to notify of churning finished
116 GNUNET_TESTING_NotifyCompletion cb;
119 * Closure for callback
124 * Number of peers that still need to be started
126 unsigned int num_to_start;
129 * Number of peers that still need to be stopped
131 unsigned int num_to_stop;
134 * Number of peers that failed to start
136 unsigned int num_failed_start;
139 * Number of peers that failed to stop
141 unsigned int num_failed_stop;
144 struct RestartContext
147 * The group of peers being restarted
149 struct GNUNET_TESTING_PeerGroup *peer_group;
152 * How many peers have been restarted thus far
154 unsigned int peers_restarted;
157 * How many peers got an error when restarting
159 unsigned int peers_restart_failed;
162 * The function to call once all peers have been restarted
164 GNUNET_TESTING_NotifyCompletion callback;
167 * Closure for callback function
173 struct SendHelloContext
176 * Global handle to the peer group.
178 struct GNUNET_TESTING_PeerGroup *pg;
181 * The data about this specific peer.
183 struct PeerData *peer;
186 * The next HELLO that needs sent to this peer.
188 struct PeerConnection *peer_pos;
191 * Are we connected to CORE yet?
193 unsigned int core_ready;
196 * How many attempts should we make for failed connections?
198 unsigned int connect_attempts;
201 * Task for scheduling core connect requests to be sent.
203 GNUNET_SCHEDULER_TaskIdentifier core_connect_task;
206 struct ShutdownContext
208 struct GNUNET_TESTING_PeerGroup *pg;
210 * Total peers to wait for
212 unsigned int total_peers;
215 * Number of peers successfully shut down
217 unsigned int peers_down;
220 * Number of peers failed to shut down
222 unsigned int peers_failed;
225 * Number of peers we have started shutting
226 * down. If too many, wait on them.
228 unsigned int outstanding;
231 * Timeout for shutdown.
233 struct GNUNET_TIME_Relative timeout;
236 * Callback to call when all peers either
237 * shutdown or failed to shutdown
239 GNUNET_TESTING_NotifyCompletion cb;
247 * Should we delete all of the files from the peers?
253 * Individual shutdown context for a particular peer.
255 struct PeerShutdownContext
258 * Pointer to the high level shutdown context.
260 struct ShutdownContext *shutdown_ctx;
263 * The daemon handle for the peer to shut down.
265 struct GNUNET_TESTING_Daemon *daemon;
269 * Individual shutdown context for a particular peer.
271 struct PeerRestartContext
274 * Pointer to the high level restart context.
276 struct ChurnRestartContext *churn_restart_ctx;
279 * The daemon handle for the peer to shut down.
281 struct GNUNET_TESTING_Daemon *daemon;
284 struct ServiceStartContext
286 struct GNUNET_TESTING_PeerGroup *pg;
287 unsigned int remaining;
288 GNUNET_TESTING_NotifyCompletion cb;
289 unsigned int outstanding;
291 struct GNUNET_TIME_Relative timeout;
296 * Individual shutdown context for a particular peer.
298 struct PeerServiceStartContext
301 * Pointer to the high level start context.
303 struct ServiceStartContext *start_ctx;
306 * The daemon handle for the peer to start the service on.
308 struct GNUNET_TESTING_Daemon *daemon;
311 struct CreateTopologyContext
315 * Function to call with number of connections
317 GNUNET_TESTING_NotifyConnections cont;
320 * Closure for connection notification
327 /** Waiting to read number of peers */
330 /** Should find next peer index */
333 /** Should find colon */
336 /** Should read other peer index, space, or endline */
341 struct PeerConnection
346 struct PeerConnection *prev;
351 struct PeerConnection *next;
354 * Index of daemon in pg->peers
361 struct InternalStartContext
364 * Pointer to peerdata
366 struct PeerData *peer;
369 * Timeout for peer startup
371 struct GNUNET_TIME_Relative timeout;
374 * Client callback for hostkey notification
376 GNUNET_TESTING_NotifyHostkeyCreated hostkey_callback;
379 * Closure for hostkey_callback
384 * Client callback for peer start notification
386 GNUNET_TESTING_NotifyDaemonRunning start_cb;
394 * Hostname, where to start the peer
396 const char *hostname;
399 * Username to use when connecting to the
402 const char *username;
405 * Pointer to starting memory location of a hostkey
410 * Port to use for ssh.
416 struct ChurnRestartContext
419 * PeerGroup that we are working with.
421 struct GNUNET_TESTING_PeerGroup *pg;
424 * Number of restarts currently in flight.
426 unsigned int outstanding;
429 * Handle to the underlying churn context.
431 struct ChurnContext *churn_ctx;
434 * How long to allow the operation to take.
436 struct GNUNET_TIME_Relative timeout;
439 struct OutstandingSSH
441 struct OutstandingSSH *next;
443 struct OutstandingSSH *prev;
446 * Number of current ssh connections.
448 uint32_t outstanding;
451 * The hostname of this peer.
453 const char *hostname;
457 * Data we keep per peer.
462 * (Initial) configuration of the host.
463 * (initial because clients could change
464 * it and we would not know about those
467 struct GNUNET_CONFIGURATION_Handle *cfg;
470 * Handle for controlling the daemon.
472 struct GNUNET_TESTING_Daemon *daemon;
475 * The peergroup this peer belongs to.
477 struct GNUNET_TESTING_PeerGroup *pg;
481 * Linked list of allowed peer connections.
483 struct PeerConnection *allowed_peers_head;
486 * Linked list of allowed peer connections.
488 struct PeerConnection *allowed_peers_tail;
491 * Linked list of blacklisted peer connections.
493 struct PeerConnection *blacklisted_peers_head;
496 * Linked list of blacklisted peer connections.
498 struct PeerConnection *blacklisted_peers_tail;
501 * Linked list of connect peer connections.
503 struct PeerConnection *connect_peers_head;
506 * Linked list of connect peer connections.
508 struct PeerConnection *connect_peers_tail;
511 * Linked list of connect peer connections.
513 struct PeerConnection *connect_peers_working_set_head;
516 * Linked list of connect peer connections.
518 struct PeerConnection *connect_peers_working_set_tail;
522 * Hash map of allowed peer connections (F2F created topology)
524 struct GNUNET_CONTAINER_MultiHashMap *allowed_peers;
527 * Hash map of blacklisted peers
529 struct GNUNET_CONTAINER_MultiHashMap *blacklisted_peers;
532 * Hash map of peer connections
534 struct GNUNET_CONTAINER_MultiHashMap *connect_peers;
537 * Temporary hash map of peer connections
539 struct GNUNET_CONTAINER_MultiHashMap *connect_peers_working_set;
543 * Temporary variable for topology creation, should be reset before
544 * creating any topology so the count is valid once finished.
549 * Context to keep track of peers being started, to
550 * stagger hostkey generation and peer startup.
552 struct InternalStartContext internal_context;
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, GNUNET_HashCode * hash)
1042 memset (hash, 0, sizeof (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 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, ".");
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",
1361 GNUNET_snprintf (cval, sizeof (cval), "%u", ctx->nport++);
1364 else if ((ival != 0) &&
1366 GNUNET_CONFIGURATION_get_value_yesno (ctx->orig, "testing",
1367 single_variable)) &&
1368 GNUNET_CONFIGURATION_get_value_number (ctx->orig, "testing",
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",
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",
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 static struct GNUNET_CONFIGURATION_Handle *
1433 make_config (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", "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", "skew_offset",
1478 if (GNUNET_CONFIGURATION_get_value_string
1479 (cfg, "testing", "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, "transport-tcp",
1508 "USE_LOCALADDR", "YES");
1509 GNUNET_CONFIGURATION_set_value_string (uc.ret, "transport-udp",
1510 "USE_LOCALADDR", "YES");
1511 GNUNET_free_non_null (control_host);
1512 GNUNET_free (allowed_hosts);
1515 /* arm needs to know to allow connections from the host on which it is running,
1516 * otherwise gnunet-arm is unable to connect to it in some instances */
1517 if (hostname != NULL)
1519 GNUNET_asprintf (&allowed_hosts, "%s; 127.0.0.1;", hostname);
1520 GNUNET_CONFIGURATION_set_value_string (uc.ret, "nat", "BINDTO", hostname);
1521 GNUNET_CONFIGURATION_set_value_string (uc.ret, "nat", "INTERNAL_ADDRESS",
1523 GNUNET_CONFIGURATION_set_value_string (uc.ret, "nat", "EXTERNAL_ADDRESS",
1525 GNUNET_CONFIGURATION_set_value_string (uc.ret, "disablev6", "BINDTO",
1527 GNUNET_CONFIGURATION_set_value_string (uc.ret, "transport-tcp",
1528 "USE_LOCALADDR", "YES");
1529 GNUNET_CONFIGURATION_set_value_string (uc.ret, "transport-udp",
1530 "USE_LOCALADDR", "YES");
1531 GNUNET_CONFIGURATION_set_value_string (uc.ret, "arm", "ACCEPT_FROM",
1533 GNUNET_free (allowed_hosts);
1537 GNUNET_CONFIGURATION_set_value_string (uc.ret, "transport-tcp",
1538 "USE_LOCALADDR", "YES");
1539 GNUNET_CONFIGURATION_set_value_string (uc.ret, "transport-udp",
1540 "USE_LOCALADDR", "YES");
1541 GNUNET_CONFIGURATION_set_value_string (uc.ret, "nat", "BINDTO",
1543 GNUNET_CONFIGURATION_set_value_string (uc.ret, "nat", "INTERNAL_ADDRESS",
1545 GNUNET_CONFIGURATION_set_value_string (uc.ret, "nat", "EXTERNAL_ADDRESS",
1547 GNUNET_CONFIGURATION_set_value_string (uc.ret, "disablev6", "BINDTO",
1551 *port = (uint16_t) uc.nport;
1559 * Remove entries from the peer connection list
1561 * @param pg the peer group we are working with
1562 * @param first index of the first peer
1563 * @param second index of the second peer
1564 * @param list the peer list to use
1565 * @param check UNUSED
1567 * @return the number of connections added (can be 0, 1 or 2)
1571 remove_connections (struct GNUNET_TESTING_PeerGroup *pg, unsigned int first,
1572 unsigned int second, enum PeerLists list,
1578 struct PeerConnection **first_list;
1579 struct PeerConnection **second_list;
1580 struct PeerConnection *first_iter;
1581 struct PeerConnection *second_iter;
1582 struct PeerConnection **first_tail;
1583 struct PeerConnection **second_tail;
1586 GNUNET_HashCode hash_first;
1587 GNUNET_HashCode hash_second;
1589 hash_from_uid (first, &hash_first);
1590 hash_from_uid (second, &hash_second);
1598 first_list = &pg->peers[first].allowed_peers_head;
1599 second_list = &pg->peers[second].allowed_peers_head;
1600 first_tail = &pg->peers[first].allowed_peers_tail;
1601 second_tail = &pg->peers[second].allowed_peers_tail;
1604 first_list = &pg->peers[first].connect_peers_head;
1605 second_list = &pg->peers[second].connect_peers_head;
1606 first_tail = &pg->peers[first].connect_peers_tail;
1607 second_tail = &pg->peers[second].connect_peers_tail;
1610 first_list = &pg->peers[first].blacklisted_peers_head;
1611 second_list = &pg->peers[second].blacklisted_peers_head;
1612 first_tail = &pg->peers[first].blacklisted_peers_tail;
1613 second_tail = &pg->peers[second].blacklisted_peers_tail;
1616 first_list = &pg->peers[first].connect_peers_working_set_head;
1617 second_list = &pg->peers[second].connect_peers_working_set_head;
1618 first_tail = &pg->peers[first].connect_peers_working_set_tail;
1619 second_tail = &pg->peers[second].connect_peers_working_set_tail;
1626 first_iter = *first_list;
1627 while (first_iter != NULL)
1629 if (first_iter->index == second)
1631 GNUNET_CONTAINER_DLL_remove (*first_list, *first_tail, first_iter);
1632 GNUNET_free (first_iter);
1636 first_iter = first_iter->next;
1639 second_iter = *second_list;
1640 while (second_iter != NULL)
1642 if (second_iter->index == first)
1644 GNUNET_CONTAINER_DLL_remove (*second_list, *second_tail, second_iter);
1645 GNUNET_free (second_iter);
1649 second_iter = second_iter->next;
1653 GNUNET_CONTAINER_multihashmap_contains (pg->
1654 peers[first].blacklisted_peers,
1657 GNUNET_CONTAINER_multihashmap_remove_all (pg->
1658 peers[first].blacklisted_peers,
1663 GNUNET_CONTAINER_multihashmap_contains (pg->
1664 peers[second].blacklisted_peers,
1667 GNUNET_CONTAINER_multihashmap_remove_all (pg->
1668 peers[second].blacklisted_peers,
1677 * Add entries to the some list
1679 * @param pg the peer group we are working with
1680 * @param first index of the first peer
1681 * @param second index of the second peer
1682 * @param list the list type that we should modify
1683 * @param check GNUNET_YES to check lists before adding
1684 * GNUNET_NO to force add
1686 * @return the number of connections added (can be 0, 1 or 2)
1690 add_connections (struct GNUNET_TESTING_PeerGroup *pg, unsigned int first,
1691 unsigned int second, enum PeerLists list, unsigned int check)
1697 struct PeerConnection **first_list;
1698 struct PeerConnection **second_list;
1699 struct PeerConnection *first_iter;
1700 struct PeerConnection *second_iter;
1701 struct PeerConnection *new_first;
1702 struct PeerConnection *new_second;
1703 struct PeerConnection **first_tail;
1704 struct PeerConnection **second_tail;
1709 first_list = &pg->peers[first].allowed_peers_head;
1710 second_list = &pg->peers[second].allowed_peers_head;
1711 first_tail = &pg->peers[first].allowed_peers_tail;
1712 second_tail = &pg->peers[second].allowed_peers_tail;
1715 first_list = &pg->peers[first].connect_peers_head;
1716 second_list = &pg->peers[second].connect_peers_head;
1717 first_tail = &pg->peers[first].connect_peers_tail;
1718 second_tail = &pg->peers[second].connect_peers_tail;
1721 first_list = &pg->peers[first].blacklisted_peers_head;
1722 second_list = &pg->peers[second].blacklisted_peers_head;
1723 first_tail = &pg->peers[first].blacklisted_peers_tail;
1724 second_tail = &pg->peers[second].blacklisted_peers_tail;
1727 first_list = &pg->peers[first].connect_peers_working_set_head;
1728 second_list = &pg->peers[second].connect_peers_working_set_head;
1729 first_tail = &pg->peers[first].connect_peers_working_set_tail;
1730 second_tail = &pg->peers[second].connect_peers_working_set_tail;
1737 add_first = GNUNET_YES;
1738 add_second = GNUNET_YES;
1740 if (check == GNUNET_YES)
1742 first_iter = *first_list;
1743 while (first_iter != NULL)
1745 if (first_iter->index == second)
1747 add_first = GNUNET_NO;
1750 first_iter = first_iter->next;
1753 second_iter = *second_list;
1754 while (second_iter != NULL)
1756 if (second_iter->index == first)
1758 add_second = GNUNET_NO;
1761 second_iter = second_iter->next;
1768 new_first = GNUNET_malloc (sizeof (struct PeerConnection));
1769 new_first->index = second;
1770 GNUNET_CONTAINER_DLL_insert (*first_list, *first_tail, new_first);
1771 pg->peers[first].num_connections++;
1777 new_second = GNUNET_malloc (sizeof (struct PeerConnection));
1778 new_second->index = first;
1779 GNUNET_CONTAINER_DLL_insert (*second_list, *second_tail, new_second);
1780 pg->peers[second].num_connections++;
1788 * Scale free network construction as described in:
1790 * "Emergence of Scaling in Random Networks." Science 286, 509-512, 1999.
1792 * Start with a network of "one" peer, then progressively add
1793 * peers up to the total number. At each step, iterate over
1794 * all possible peers and connect new peer based on number of
1795 * existing connections of the target peer.
1797 * @param pg the peer group we are dealing with
1798 * @param proc the connection processor to use
1799 * @param list the peer list to use
1801 * @return the number of connections created
1804 create_scale_free (struct GNUNET_TESTING_PeerGroup *pg,
1805 GNUNET_TESTING_ConnectionProcessor proc, enum PeerLists list)
1808 unsigned int total_connections;
1809 unsigned int outer_count;
1811 unsigned int previous_total_connections;
1815 GNUNET_assert (pg->total > 1);
1817 /* Add a connection between the first two nodes */
1818 total_connections = proc (pg, 0, 1, list, GNUNET_YES);
1820 for (outer_count = 1; outer_count < pg->total; outer_count++)
1822 previous_total_connections = total_connections;
1823 for (i = 0; i < outer_count; i++)
1826 pg->peers[i].num_connections / (double) previous_total_connections;
1829 GNUNET_CRYPTO_random_u64 (GNUNET_CRYPTO_QUALITY_WEAK,
1830 UINT64_MAX)) / ((double) UINT64_MAX);
1832 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1833 "Considering connecting peer %d to peer %d\n", outer_count,
1836 if (random < probability)
1839 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Connecting peer %d to peer %d\n",
1842 total_connections += proc (pg, outer_count, i, list, GNUNET_YES);
1847 return total_connections;
1851 * Create a topology given a peer group (set of running peers)
1852 * and a connection processor. Creates a small world topology
1853 * according to the rewired ring construction. The basic
1854 * behavior is that a ring topology is created, but with some
1855 * probability instead of connecting a peer to the next
1856 * neighbor in the ring a connection will be created to a peer
1857 * selected uniformly at random. We use the TESTING
1858 * PERCENTAGE option to specify what number of
1859 * connections each peer should have. Default is 2,
1860 * which makes the ring, any given number is multiplied by
1861 * the log of the network size; i.e. a PERCENTAGE of 2 makes
1862 * each peer have on average 2logn connections. The additional
1863 * connections are made at increasing distance around the ring
1864 * from the original peer, or to random peers based on the re-
1865 * wiring probability. The TESTING
1866 * PROBABILITY option is used as the probability that a given
1867 * connection is rewired.
1869 * @param pg the peergroup to create the topology on
1870 * @param proc the connection processor to call to actually set
1871 * up connections between two peers
1872 * @param list the peer list to use
1874 * @return the number of connections that were set up
1878 create_small_world_ring (struct GNUNET_TESTING_PeerGroup *pg,
1879 GNUNET_TESTING_ConnectionProcessor proc,
1880 enum PeerLists list)
1884 unsigned int natLog;
1885 unsigned int randomPeer;
1886 double random, logNModifier, probability;
1887 unsigned int smallWorldConnections;
1892 unsigned int useAnd;
1893 int connect_attempts;
1895 logNModifier = 0.5; /* FIXME: default value? */
1897 GNUNET_CONFIGURATION_get_value_string (pg->cfg, "TESTING", "PERCENTAGE",
1900 if (sscanf (p_string, "%lf", &logNModifier) != 1)
1901 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
1903 ("Invalid value `%s' for option `%s' in section `%s': expected float\n"),
1904 p_string, "LOGNMODIFIER", "TESTING");
1905 GNUNET_free (p_string);
1907 probability = 0.5; /* FIXME: default percentage? */
1909 GNUNET_CONFIGURATION_get_value_string (pg->cfg, "TESTING", "PROBABILITY",
1912 if (sscanf (p_string, "%lf", &probability) != 1)
1913 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
1915 ("Invalid value `%s' for option `%s' in section `%s': expected float\n"),
1916 p_string, "PERCENTAGE", "TESTING");
1917 GNUNET_free (p_string);
1919 natLog = log (pg->total);
1920 connsPerPeer = ceil (natLog * logNModifier);
1922 if (connsPerPeer % 2 == 1)
1925 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, _("Target is %d connections per peer."),
1928 smallWorldConnections = 0;
1929 connect_attempts = 0;
1930 for (i = 0; i < pg->total; i++)
1933 max = i + connsPerPeer / 2;
1934 min = i - connsPerPeer / 2;
1936 if (max > pg->total - 1)
1938 max = max - pg->total;
1944 min = pg->total - 1 + min;
1948 for (j = 0; j < connsPerPeer / 2; j++)
1952 GNUNET_CRYPTO_random_u64 (GNUNET_CRYPTO_QUALITY_WEAK,
1953 UINT64_MAX) / ((double) UINT64_MAX));
1954 if (random < probability)
1956 /* Connect to uniformly selected random peer */
1958 GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK, pg->total);
1959 while ((((randomPeer < max) && (randomPeer > min)) && (useAnd == 0)) ||
1960 (((randomPeer > min) || (randomPeer < max)) && (useAnd == 1)))
1963 GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK, pg->total);
1965 smallWorldConnections += proc (pg, i, randomPeer, list, GNUNET_YES);
1969 nodeToConnect = i + j + 1;
1970 if (nodeToConnect > pg->total - 1)
1972 nodeToConnect = nodeToConnect - pg->total;
1974 connect_attempts += proc (pg, i, nodeToConnect, list, GNUNET_YES);
1980 connect_attempts += smallWorldConnections;
1982 return connect_attempts;
1986 * Create a topology given a peer group (set of running peers)
1987 * and a connection processor.
1989 * @param pg the peergroup to create the topology on
1990 * @param proc the connection processor to call to actually set
1991 * up connections between two peers
1992 * @param list the peer list to use
1994 * @return the number of connections that were set up
1998 create_nated_internet (struct GNUNET_TESTING_PeerGroup *pg,
1999 GNUNET_TESTING_ConnectionProcessor proc,
2000 enum PeerLists list)
2002 unsigned int outer_count, inner_count;
2003 unsigned int cutoff;
2004 int connect_attempts;
2005 double nat_percentage;
2008 nat_percentage = 0.6; /* FIXME: default percentage? */
2010 GNUNET_CONFIGURATION_get_value_string (pg->cfg, "TESTING", "PERCENTAGE",
2013 if (sscanf (p_string, "%lf", &nat_percentage) != 1)
2014 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2016 ("Invalid value `%s' for option `%s' in section `%s': expected float\n"),
2017 p_string, "PERCENTAGE", "TESTING");
2018 GNUNET_free (p_string);
2021 cutoff = (unsigned int) (nat_percentage * pg->total);
2022 connect_attempts = 0;
2023 for (outer_count = 0; outer_count < pg->total - 1; outer_count++)
2025 for (inner_count = outer_count + 1; inner_count < pg->total; inner_count++)
2027 if ((outer_count > cutoff) || (inner_count > cutoff))
2030 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Connecting peer %d to peer %d\n",
2031 outer_count, inner_count);
2034 proc (pg, outer_count, inner_count, list, GNUNET_YES);
2038 return connect_attempts;
2043 * Create a topology given a peer group (set of running peers)
2044 * and a connection processor.
2046 * @param pg the peergroup to create the topology on
2047 * @param proc the connection processor to call to actually set
2048 * up connections between two peers
2049 * @param list the peer list to use
2051 * @return the number of connections that were set up
2055 create_nated_internet_copy (struct GNUNET_TESTING_PeerGroup *pg,
2056 GNUNET_TESTING_ConnectionProcessor proc,
2057 enum PeerLists list)
2059 unsigned int outer_count, inner_count;
2060 unsigned int cutoff;
2061 int connect_attempts;
2062 double nat_percentage;
2065 struct ProgressMeter *conn_meter;
2067 nat_percentage = 0.6; /* FIXME: default percentage? */
2069 GNUNET_CONFIGURATION_get_value_string (pg->cfg, "TESTING", "PERCENTAGE",
2072 if (sscanf (p_string, "%lf", &nat_percentage) != 1)
2073 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2075 ("Invalid value `%s' for option `%s' in section `%s': expected float\n"),
2076 p_string, "PERCENTAGE", "TESTING");
2077 GNUNET_free (p_string);
2080 cutoff = (unsigned int) (nat_percentage * pg->total);
2082 for (outer_count = 0; outer_count < pg->total - 1; outer_count++)
2084 for (inner_count = outer_count + 1; inner_count < pg->total; inner_count++)
2086 if ((outer_count > cutoff) || (inner_count > cutoff))
2092 conn_meter = create_meter (count, "NAT COPY", GNUNET_YES);
2093 connect_attempts = 0;
2094 for (outer_count = 0; outer_count < pg->total - 1; outer_count++)
2096 for (inner_count = outer_count + 1; inner_count < pg->total; inner_count++)
2098 if ((outer_count > cutoff) || (inner_count > cutoff))
2101 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Connecting peer %d to peer %d\n",
2102 outer_count, inner_count);
2105 proc (pg, outer_count, inner_count, list, GNUNET_YES);
2106 add_connections (pg, outer_count, inner_count, ALLOWED, GNUNET_NO);
2107 update_meter (conn_meter);
2111 free_meter (conn_meter);
2113 return connect_attempts;
2118 * Create a topology given a peer group (set of running peers)
2119 * and a connection processor.
2121 * @param pg the peergroup to create the topology on
2122 * @param proc the connection processor to call to actually set
2123 * up connections between two peers
2124 * @param list the peer list to use
2126 * @return the number of connections that were set up
2130 create_small_world (struct GNUNET_TESTING_PeerGroup *pg,
2131 GNUNET_TESTING_ConnectionProcessor proc,
2132 enum PeerLists list)
2134 unsigned int i, j, k;
2135 unsigned int square;
2138 unsigned int toggle = 1;
2139 unsigned int nodeToConnect;
2140 unsigned int natLog;
2141 unsigned int node1Row;
2142 unsigned int node1Col;
2143 unsigned int node2Row;
2144 unsigned int node2Col;
2145 unsigned int distance;
2146 double probability, random, percentage;
2147 unsigned int smallWorldConnections;
2148 unsigned int small_world_it;
2150 int connect_attempts;
2152 square = floor (sqrt (pg->total));
2156 percentage = 0.5; /* FIXME: default percentage? */
2158 GNUNET_CONFIGURATION_get_value_string (pg->cfg, "TESTING", "PERCENTAGE",
2161 if (sscanf (p_string, "%lf", &percentage) != 1)
2162 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2164 ("Invalid value `%s' for option `%s' in section `%s': expected float\n"),
2165 p_string, "PERCENTAGE", "TESTING");
2166 GNUNET_free (p_string);
2168 if (percentage < 0.0)
2170 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2172 ("Invalid value `%s' for option `%s' in section `%s': got %f, needed value greater than 0\n"),
2173 "PERCENTAGE", "TESTING", percentage);
2176 probability = 0.5; /* FIXME: default percentage? */
2178 GNUNET_CONFIGURATION_get_value_string (pg->cfg, "TESTING", "PROBABILITY",
2181 if (sscanf (p_string, "%lf", &probability) != 1)
2182 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2184 ("Invalid value `%s' for option `%s' in section `%s': expected float\n"),
2185 p_string, "PROBABILITY", "TESTING");
2186 GNUNET_free (p_string);
2188 if (square * square != pg->total)
2190 while (rows * cols < pg->total)
2192 if (toggle % 2 == 0)
2201 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2202 _("Connecting nodes in 2d torus topology: %u rows %u columns\n"),
2206 connect_attempts = 0;
2207 /* Rows and columns are all sorted out, now iterate over all nodes and connect each
2208 * to the node to its right and above. Once this is over, we'll have our torus!
2209 * Special case for the last node (if the rows and columns are not equal), connect
2210 * to the first in the row to maintain topology.
2212 for (i = 0; i < pg->total; i++)
2214 /* First connect to the node to the right */
2215 if (((i + 1) % cols != 0) && (i + 1 != pg->total))
2216 nodeToConnect = i + 1;
2217 else if (i + 1 == pg->total)
2218 nodeToConnect = rows * cols - cols;
2220 nodeToConnect = i - cols + 1;
2222 connect_attempts += proc (pg, i, nodeToConnect, list, GNUNET_YES);
2226 nodeToConnect = (rows * cols) - cols + i;
2227 if (nodeToConnect >= pg->total)
2228 nodeToConnect -= cols;
2231 nodeToConnect = i - cols;
2233 if (nodeToConnect < pg->total)
2234 connect_attempts += proc (pg, i, nodeToConnect, list, GNUNET_YES);
2236 natLog = log (pg->total);
2237 #if VERBOSE_TESTING > 2
2238 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2239 _("natural log of %d is %d, will run %d iterations\n"), pg->total,
2240 natLog, (int) (natLog * percentage));
2241 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2242 _("Total connections added thus far: %u!\n"), connect_attempts);
2244 smallWorldConnections = 0;
2245 small_world_it = (unsigned int) (natLog * percentage);
2246 if (small_world_it < 1)
2248 GNUNET_assert (small_world_it > 0 && small_world_it < (unsigned int) -1);
2249 for (i = 0; i < small_world_it; i++)
2251 for (j = 0; j < pg->total; j++)
2253 /* Determine the row and column of node at position j on the 2d torus */
2254 node1Row = j / cols;
2255 node1Col = j - (node1Row * cols);
2256 for (k = 0; k < pg->total; k++)
2258 /* Determine the row and column of node at position k on the 2d torus */
2259 node2Row = k / cols;
2260 node2Col = k - (node2Row * cols);
2261 /* Simple Cartesian distance */
2262 distance = abs (node1Row - node2Row) + abs (node1Col - node2Col);
2265 /* Calculate probability as 1 over the square of the distance */
2266 probability = 1.0 / (distance * distance);
2267 /* Choose a random value between 0 and 1 */
2270 GNUNET_CRYPTO_random_u64 (GNUNET_CRYPTO_QUALITY_WEAK,
2271 UINT64_MAX)) / ((double) UINT64_MAX);
2272 /* If random < probability, then connect the two nodes */
2273 if (random < probability)
2274 smallWorldConnections += proc (pg, j, k, list, GNUNET_YES);
2280 connect_attempts += smallWorldConnections;
2281 #if VERBOSE_TESTING > 2
2282 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2283 _("Total connections added for small world: %d!\n"),
2284 smallWorldConnections);
2286 return connect_attempts;
2290 * Create a topology given a peer group (set of running peers)
2291 * and a connection processor.
2293 * @param pg the peergroup to create the topology on
2294 * @param proc the connection processor to call to actually set
2295 * up connections between two peers
2296 * @param list the peer list to use
2298 * @return the number of connections that were set up
2302 create_erdos_renyi (struct GNUNET_TESTING_PeerGroup *pg,
2303 GNUNET_TESTING_ConnectionProcessor proc,
2304 enum PeerLists list)
2307 unsigned int outer_count;
2308 unsigned int inner_count;
2309 int connect_attempts;
2313 probability = 0.5; /* FIXME: default percentage? */
2315 GNUNET_CONFIGURATION_get_value_string (pg->cfg, "TESTING", "PROBABILITY",
2318 if (sscanf (p_string, "%lf", &probability) != 1)
2319 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2321 ("Invalid value `%s' for option `%s' in section `%s': expected float\n"),
2322 p_string, "PROBABILITY", "TESTING");
2323 GNUNET_free (p_string);
2325 connect_attempts = 0;
2326 for (outer_count = 0; outer_count < pg->total - 1; outer_count++)
2328 for (inner_count = outer_count + 1; inner_count < pg->total; inner_count++)
2332 GNUNET_CRYPTO_random_u64 (GNUNET_CRYPTO_QUALITY_WEAK,
2333 UINT64_MAX)) / ((double) UINT64_MAX);
2335 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, _("rand is %f probability is %f\n"),
2336 temp_rand, probability);
2338 if (temp_rand < probability)
2341 proc (pg, outer_count, inner_count, list, GNUNET_YES);
2346 return connect_attempts;
2350 * Create a topology given a peer group (set of running peers)
2351 * and a connection processor. This particular function creates
2352 * the connections for a 2d-torus, plus additional "closest"
2353 * connections per peer.
2355 * @param pg the peergroup to create the topology on
2356 * @param proc the connection processor to call to actually set
2357 * up connections between two peers
2358 * @param list the peer list to use
2360 * @return the number of connections that were set up
2364 create_2d_torus (struct GNUNET_TESTING_PeerGroup *pg,
2365 GNUNET_TESTING_ConnectionProcessor proc, enum PeerLists list)
2368 unsigned int square;
2371 unsigned int toggle = 1;
2372 unsigned int nodeToConnect;
2373 int connect_attempts;
2375 connect_attempts = 0;
2377 square = floor (sqrt (pg->total));
2381 if (square * square != pg->total)
2383 while (rows * cols < pg->total)
2385 if (toggle % 2 == 0)
2394 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2395 _("Connecting nodes in 2d torus topology: %u rows %u columns\n"),
2398 /* Rows and columns are all sorted out, now iterate over all nodes and connect each
2399 * to the node to its right and above. Once this is over, we'll have our torus!
2400 * Special case for the last node (if the rows and columns are not equal), connect
2401 * to the first in the row to maintain topology.
2403 for (i = 0; i < pg->total; i++)
2405 /* First connect to the node to the right */
2406 if (((i + 1) % cols != 0) && (i + 1 != pg->total))
2407 nodeToConnect = i + 1;
2408 else if (i + 1 == pg->total)
2409 nodeToConnect = rows * cols - cols;
2411 nodeToConnect = i - cols + 1;
2413 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Connecting peer %d to peer %d\n", i,
2416 connect_attempts += proc (pg, i, nodeToConnect, list, GNUNET_YES);
2418 /* Second connect to the node immediately above */
2421 nodeToConnect = (rows * cols) - cols + i;
2422 if (nodeToConnect >= pg->total)
2423 nodeToConnect -= cols;
2426 nodeToConnect = i - cols;
2428 if (nodeToConnect < pg->total)
2431 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Connecting peer %d to peer %d\n", i,
2434 connect_attempts += proc (pg, i, nodeToConnect, list, GNUNET_YES);
2439 return connect_attempts;
2443 * Create a topology given a peer group (set of running peers)
2444 * and a connection processor.
2446 * @param pg the peergroup to create the topology on
2447 * @param proc the connection processor to call to actually set
2448 * up connections between two peers
2449 * @param list the peer list to use
2450 * @param check does the connection processor need to check before
2451 * performing an action on the list?
2453 * @return the number of connections that were set up
2457 create_clique (struct GNUNET_TESTING_PeerGroup *pg,
2458 GNUNET_TESTING_ConnectionProcessor proc, enum PeerLists list,
2461 unsigned int outer_count;
2462 unsigned int inner_count;
2463 int connect_attempts;
2464 struct ProgressMeter *conn_meter;
2466 connect_attempts = 0;
2469 create_meter ((((pg->total * pg->total) + pg->total) / 2) - pg->total,
2470 "Create Clique ", GNUNET_NO);
2471 for (outer_count = 0; outer_count < pg->total - 1; outer_count++)
2473 for (inner_count = outer_count + 1; inner_count < pg->total; inner_count++)
2476 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Connecting peer %d to peer %d\n",
2477 outer_count, inner_count);
2479 connect_attempts += proc (pg, outer_count, inner_count, list, check);
2480 update_meter (conn_meter);
2483 reset_meter (conn_meter);
2484 free_meter (conn_meter);
2485 return connect_attempts;
2490 * Iterator over hash map entries.
2492 * @param cls closure the peer group
2493 * @param key the key stored in the hashmap is the
2494 * index of the peer to connect to
2495 * @param value value in the hash map, handle to the peer daemon
2496 * @return GNUNET_YES if we should continue to
2501 unblacklist_iterator (void *cls, const GNUNET_HashCode * key, void *value)
2503 struct UnblacklistContext *un_ctx = cls;
2504 uint32_t second_pos;
2506 uid_from_hash (key, &second_pos);
2508 unblacklist_connections (un_ctx->pg, un_ctx->first_uid, second_pos);
2516 * Create a blacklist topology based on the allowed topology
2517 * which disallows any connections not in the allowed topology
2518 * at the transport level.
2520 * @param pg the peergroup to create the topology on
2521 * @param proc the connection processor to call to allow
2522 * up connections between two peers
2524 * @return the number of connections that were set up
2528 copy_allowed (struct GNUNET_TESTING_PeerGroup *pg,
2529 GNUNET_TESTING_ConnectionProcessor proc)
2533 struct PeerConnection *iter;
2536 struct UnblacklistContext un_ctx;
2541 for (count = 0; count < pg->total - 1; count++)
2544 iter = pg->peers[count].allowed_peers_head;
2545 while (iter != NULL)
2547 remove_connections (pg, count, iter->index, BLACKLIST, GNUNET_YES);
2548 //unblacklist_connections(pg, count, iter->index);
2552 un_ctx.first_uid = count;
2554 GNUNET_CONTAINER_multihashmap_iterate (pg->peers[count].allowed_peers,
2555 &unblacklist_iterator, &un_ctx);
2558 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Unblacklisted %u peers\n", total);
2564 * Create a topology given a peer group (set of running peers)
2565 * and a connection processor.
2567 * @param pg the peergroup to create the topology on
2568 * @param proc the connection processor to call to actually set
2569 * up connections between two peers
2570 * @param list which list should be modified
2572 * @return the number of connections that were set up
2576 create_line (struct GNUNET_TESTING_PeerGroup *pg,
2577 GNUNET_TESTING_ConnectionProcessor proc, enum PeerLists list)
2580 unsigned int connect_attempts;
2582 connect_attempts = 0;
2583 /* Connect each peer to the next highest numbered peer */
2584 for (count = 0; count < pg->total - 1; count++)
2587 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Connecting peer %d to peer %d\n",
2590 connect_attempts += proc (pg, count, count + 1, list, GNUNET_YES);
2593 return connect_attempts;
2597 * Create a topology given a peer group (set of running peers)
2598 * and a connection processor.
2600 * @param pg the peergroup to create the topology on
2601 * @param filename the file to read topology information from
2602 * @param proc the connection processor to call to actually set
2603 * up connections between two peers
2604 * @param list the peer list to use
2606 * @return the number of connections that were set up
2610 create_from_file (struct GNUNET_TESTING_PeerGroup *pg, char *filename,
2611 GNUNET_TESTING_ConnectionProcessor proc, enum PeerLists list)
2613 int connect_attempts;
2614 unsigned int first_peer_index;
2615 unsigned int second_peer_index;
2620 unsigned int total_peers;
2621 enum States curr_state;
2623 connect_attempts = 0;
2624 if (GNUNET_OK != GNUNET_DISK_file_test (filename))
2625 GNUNET_DISK_fn_write (filename, NULL, 0, GNUNET_DISK_PERM_USER_READ);
2627 if ((0 != STAT (filename, &frstat)) || (frstat.st_size == 0))
2629 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
2630 "Could not open file `%s' specified for topology!", filename);
2631 return connect_attempts;
2634 data = GNUNET_malloc_large (frstat.st_size);
2635 GNUNET_assert (data != NULL);
2636 if (frstat.st_size != GNUNET_DISK_fn_read (filename, data, frstat.st_size))
2638 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
2639 "Could not read file %s specified for host list, ending test!",
2642 return connect_attempts;
2647 first_peer_index = 0;
2648 /* First line should contain a single integer, specifying the number of peers */
2649 /* Each subsequent line should contain this format PEER_INDEX:OTHER_PEER_INDEX[,...] */
2650 curr_state = NUM_PEERS;
2651 while (count < frstat.st_size - 1)
2653 if ((buf[count] == '\n') || (buf[count] == ' '))
2663 total_peers = strtoul (&buf[count], NULL, 10);
2666 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2667 "Failed to read number of peers from topology file!\n");
2669 return connect_attempts;
2672 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2673 "Found %u total peers in topology\n", total_peers);
2675 GNUNET_assert (total_peers == pg->total);
2676 curr_state = PEER_INDEX;
2677 while ((buf[count] != '\n') && (count < frstat.st_size - 1))
2683 first_peer_index = strtoul (&buf[count], NULL, 10);
2686 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2687 "Failed to read peer index from topology file!\n");
2689 return connect_attempts;
2691 while ((buf[count] != ':') && (count < frstat.st_size - 1))
2694 curr_state = OTHER_PEER_INDEX;
2697 if (1 == sscanf (&buf[count], ":"))
2698 curr_state = OTHER_PEER_INDEX;
2701 case OTHER_PEER_INDEX:
2703 second_peer_index = strtoul (&buf[count], NULL, 10);
2706 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2707 "Failed to peer index from topology file!\n");
2709 return connect_attempts;
2711 /* Assume file is written with first peer 1, but array index is 0 */
2713 proc (pg, first_peer_index - 1, second_peer_index - 1, list,
2715 while ((buf[count] != '\n') && (buf[count] != ',') &&
2716 (count < frstat.st_size - 1))
2718 if (buf[count] == '\n')
2720 curr_state = PEER_INDEX;
2722 else if (buf[count] != ',')
2724 curr_state = OTHER_PEER_INDEX;
2729 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
2730 "Found bad data in topology file while in state %d!\n",
2734 return connect_attempts;
2738 return connect_attempts;
2742 * Create a topology given a peer group (set of running peers)
2743 * and a connection processor.
2745 * @param pg the peergroup to create the topology on
2746 * @param proc the connection processor to call to actually set
2747 * up connections between two peers
2748 * @param list the peer list to use
2750 * @return the number of connections that were set up
2754 create_ring (struct GNUNET_TESTING_PeerGroup *pg,
2755 GNUNET_TESTING_ConnectionProcessor proc, enum PeerLists list)
2758 int connect_attempts;
2760 connect_attempts = 0;
2762 /* Connect each peer to the next highest numbered peer */
2763 for (count = 0; count < pg->total - 1; count++)
2766 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Connecting peer %d to peer %d\n",
2769 connect_attempts += proc (pg, count, count + 1, list, GNUNET_YES);
2772 /* Connect the last peer to the first peer */
2773 connect_attempts += proc (pg, pg->total - 1, 0, list, GNUNET_YES);
2775 return connect_attempts;
2780 * Iterator for writing friends of a peer to a file.
2782 * @param cls closure, an open writable file handle
2783 * @param key the key the daemon was stored under
2784 * @param value the GNUNET_TESTING_Daemon that needs to be written.
2786 * @return GNUNET_YES to continue iteration
2788 * TODO: Could replace friend_file_iterator and blacklist_file_iterator
2789 * with a single file_iterator that takes a closure which contains
2790 * the prefix to write before the peer. Then this could be used
2791 * for blacklisting multiple transports and writing the friend
2792 * file. I'm sure *someone* will complain loudly about other
2793 * things that negate these functions even existing so no point in
2797 friend_file_iterator (void *cls, const GNUNET_HashCode * key, void *value)
2799 FILE *temp_friend_handle = cls;
2800 struct GNUNET_TESTING_Daemon *peer = value;
2801 struct GNUNET_PeerIdentity *temppeer;
2802 struct GNUNET_CRYPTO_HashAsciiEncoded peer_enc;
2804 temppeer = &peer->id;
2805 GNUNET_CRYPTO_hash_to_enc (&temppeer->hashPubKey, &peer_enc);
2806 fprintf (temp_friend_handle, "%s\n", (char *) &peer_enc);
2811 struct BlacklistContext
2814 * The (open) file handle to write to
2816 FILE *temp_file_handle;
2819 * The transport that this peer will be blacklisted on.
2825 * Iterator for writing blacklist data to appropriate files.
2827 * @param cls closure, an open writable file handle
2828 * @param key the key the daemon was stored under
2829 * @param value the GNUNET_TESTING_Daemon that needs to be written.
2831 * @return GNUNET_YES to continue iteration
2834 blacklist_file_iterator (void *cls, const GNUNET_HashCode * key, void *value)
2836 struct BlacklistContext *blacklist_ctx = cls;
2837 struct GNUNET_TESTING_Daemon *peer = value;
2838 struct GNUNET_PeerIdentity *temppeer;
2839 struct GNUNET_CRYPTO_HashAsciiEncoded peer_enc;
2841 temppeer = &peer->id;
2842 GNUNET_CRYPTO_hash_to_enc (&temppeer->hashPubKey, &peer_enc);
2843 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Writing entry %s:%s to file\n",
2844 blacklist_ctx->transport, (char *) &peer_enc);
2845 fprintf (blacklist_ctx->temp_file_handle, "%s:%s\n", blacklist_ctx->transport,
2846 (char *) &peer_enc);
2853 * Create the friend files based on the PeerConnection's
2854 * of each peer in the peer group, and copy the files
2855 * to the appropriate place
2857 * @param pg the peer group we are dealing with
2860 create_and_copy_friend_files (struct GNUNET_TESTING_PeerGroup *pg)
2862 FILE *temp_friend_handle;
2863 unsigned int pg_iter;
2864 char *temp_service_path;
2865 struct GNUNET_OS_Process **procarr;
2870 enum GNUNET_OS_ProcessStatusType type;
2871 unsigned long return_code;
2879 struct GNUNET_CRYPTO_HashAsciiEncoded peer_enc;
2880 struct PeerConnection *conn_iter;
2882 procarr = GNUNET_malloc (sizeof (struct GNUNET_OS_Process *) * pg->total);
2883 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
2885 mytemp = GNUNET_DISK_mktemp ("friends");
2886 GNUNET_assert (mytemp != NULL);
2887 temp_friend_handle = fopen (mytemp, "wt");
2888 GNUNET_assert (temp_friend_handle != NULL);
2890 conn_iter = pg->peers[pg_iter].allowed_peers_head;
2891 while (conn_iter != NULL)
2893 GNUNET_CRYPTO_hash_to_enc (&pg->peers[conn_iter->index].daemon->
2894 id.hashPubKey, &peer_enc);
2895 fprintf (temp_friend_handle, "%s\n", (char *) &peer_enc);
2896 conn_iter = conn_iter->next;
2899 GNUNET_CONTAINER_multihashmap_iterate (pg->peers[pg_iter].allowed_peers,
2900 &friend_file_iterator,
2901 temp_friend_handle);
2903 fclose (temp_friend_handle);
2906 GNUNET_CONFIGURATION_get_value_string (pg->peers[pg_iter].daemon->cfg,
2907 "PATHS", "SERVICEHOME",
2908 &temp_service_path))
2910 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2912 ("No `%s' specified in peer configuration in section `%s', cannot copy friends file!\n"),
2913 "SERVICEHOME", "PATHS");
2914 if (UNLINK (mytemp) != 0)
2915 GNUNET_log_strerror_file (GNUNET_ERROR_TYPE_WARNING, "unlink", mytemp);
2916 GNUNET_free (mytemp);
2920 if (pg->peers[pg_iter].daemon->hostname == NULL) /* Local, just copy the file */
2922 GNUNET_asprintf (&arg, "%s/friends", temp_service_path);
2924 GNUNET_OS_start_process (NULL, NULL, "mv", "mv", mytemp, arg, NULL);
2925 GNUNET_assert (procarr[pg_iter] != NULL);
2927 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2928 "Copying file with command cp %s %s\n", mytemp, arg);
2930 ret = GNUNET_OS_process_wait (procarr[pg_iter]); /* FIXME: schedule this, throttle! */
2931 GNUNET_OS_process_close (procarr[pg_iter]);
2934 else /* Remote, scp the file to the correct place */
2936 if (NULL != pg->peers[pg_iter].daemon->username)
2937 GNUNET_asprintf (&arg, "%s@%s:%s/friends",
2938 pg->peers[pg_iter].daemon->username,
2939 pg->peers[pg_iter].daemon->hostname,
2942 GNUNET_asprintf (&arg, "%s:%s/friends",
2943 pg->peers[pg_iter].daemon->hostname,
2946 GNUNET_OS_start_process (NULL, NULL, "scp", "scp", mytemp, arg, NULL);
2947 GNUNET_assert (procarr[pg_iter] != NULL);
2948 ret = GNUNET_OS_process_wait (procarr[pg_iter]); /* FIXME: schedule this, throttle! */
2949 GNUNET_OS_process_close (procarr[pg_iter]);
2950 if (ret != GNUNET_OK)
2952 /* FIXME: free contents of 'procarr' array */
2953 GNUNET_free (procarr);
2954 GNUNET_free (temp_service_path);
2955 GNUNET_free (mytemp);
2959 procarr[pg_iter] = NULL;
2961 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2962 "Copying file with command scp %s %s\n", mytemp, arg);
2966 GNUNET_free (temp_service_path);
2967 GNUNET_free (mytemp);
2972 ret = GNUNET_SYSERR;
2973 while ((count < max_wait) && (ret != GNUNET_OK))
2976 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
2979 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Checking copy status of file %d\n",
2982 if (procarr[pg_iter] != NULL) /* Check for already completed! */
2984 if (GNUNET_OS_process_status (procarr[pg_iter], &type, &return_code) !=
2987 ret = GNUNET_SYSERR;
2989 else if ((type != GNUNET_OS_PROCESS_EXITED) || (return_code != 0))
2991 ret = GNUNET_SYSERR;
2995 GNUNET_OS_process_close (procarr[pg_iter]);
2996 procarr[pg_iter] = NULL;
2998 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "File %d copied\n", pg_iter);
3004 if (ret == GNUNET_SYSERR)
3006 /* FIXME: why sleep here? -CG */
3012 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
3013 _("Finished copying all friend files!\n"));
3016 GNUNET_free (procarr);
3021 * Create the blacklist files based on the PeerConnection's
3022 * of each peer in the peer group, and copy the files
3023 * to the appropriate place.
3025 * @param pg the peer group we are dealing with
3026 * @param transports space delimited list of transports to blacklist
3029 create_and_copy_blacklist_files (struct GNUNET_TESTING_PeerGroup *pg,
3030 const char *transports)
3032 FILE *temp_file_handle;
3033 unsigned int pg_iter;
3034 char *temp_service_path;
3035 struct GNUNET_OS_Process **procarr;
3038 enum GNUNET_OS_ProcessStatusType type;
3039 unsigned long return_code;
3046 char *temp_transports;
3049 struct GNUNET_CRYPTO_HashAsciiEncoded peer_enc;
3050 struct PeerConnection *conn_iter;
3052 static struct BlacklistContext blacklist_ctx;
3055 procarr = GNUNET_malloc (sizeof (struct GNUNET_OS_Process *) * pg->total);
3056 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
3058 mytemp = GNUNET_DISK_mktemp ("blacklist");
3059 GNUNET_assert (mytemp != NULL);
3060 temp_file_handle = fopen (mytemp, "wt");
3061 GNUNET_assert (temp_file_handle != NULL);
3062 temp_transports = GNUNET_strdup (transports);
3064 blacklist_ctx.temp_file_handle = temp_file_handle;
3066 transport_len = strlen (temp_transports) + 1;
3069 for (i = 0; i < transport_len; i++)
3071 if ((temp_transports[i] == ' ') && (pos == NULL))
3072 continue; /* At start of string (whitespace) */
3073 else if ((temp_transports[i] == ' ') || (temp_transports[i] == '\0')) /* At end of string */
3075 temp_transports[i] = '\0';
3077 conn_iter = pg->peers[pg_iter].blacklisted_peers_head;
3078 while (conn_iter != NULL)
3080 GNUNET_CRYPTO_hash_to_enc (&pg->peers[conn_iter->index].daemon->
3081 id.hashPubKey, &peer_enc);
3082 fprintf (temp_file_handle, "%s:%s\n", pos, (char *) &peer_enc);
3083 conn_iter = conn_iter->next;
3086 blacklist_ctx.transport = pos;
3087 (void) GNUNET_CONTAINER_multihashmap_iterate (pg->
3089 [pg_iter].blacklisted_peers,
3090 &blacklist_file_iterator,
3094 } /* At beginning of actual string */
3095 else if (pos == NULL)
3097 pos = &temp_transports[i];
3101 GNUNET_free (temp_transports);
3102 fclose (temp_file_handle);
3105 GNUNET_CONFIGURATION_get_value_string (pg->peers[pg_iter].daemon->cfg,
3106 "PATHS", "SERVICEHOME",
3107 &temp_service_path))
3109 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
3111 ("No `%s' specified in peer configuration in section `%s', cannot copy friends file!\n"),
3112 "SERVICEHOME", "PATHS");
3113 if (UNLINK (mytemp) != 0)
3114 GNUNET_log_strerror_file (GNUNET_ERROR_TYPE_WARNING, "unlink", mytemp);
3115 GNUNET_free (mytemp);
3119 if (pg->peers[pg_iter].daemon->hostname == NULL) /* Local, just copy the file */
3121 GNUNET_asprintf (&arg, "%s/blacklist", temp_service_path);
3123 GNUNET_OS_start_process (NULL, NULL, "mv", "mv", mytemp, arg, NULL);
3125 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
3126 _("Copying file with command cp %s %s\n"), mytemp, arg);
3131 else /* Remote, scp the file to the correct place */
3133 if (NULL != pg->peers[pg_iter].daemon->username)
3134 GNUNET_asprintf (&arg, "%s@%s:%s/blacklist",
3135 pg->peers[pg_iter].daemon->username,
3136 pg->peers[pg_iter].daemon->hostname,
3139 GNUNET_asprintf (&arg, "%s:%s/blacklist",
3140 pg->peers[pg_iter].daemon->hostname,
3143 GNUNET_OS_start_process (NULL, NULL, "scp", "scp", mytemp, arg, NULL);
3144 GNUNET_assert (procarr[pg_iter] != NULL);
3145 GNUNET_OS_process_wait (procarr[pg_iter]); /* FIXME: add scheduled blacklist file copy that parallelizes file copying! */
3148 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
3149 _("Copying file with command scp %s %s\n"), mytemp, arg);
3153 GNUNET_free (temp_service_path);
3154 GNUNET_free (mytemp);
3158 ret = GNUNET_SYSERR;
3159 while ((count < max_wait) && (ret != GNUNET_OK))
3162 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
3165 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
3166 _("Checking copy status of file %d\n"), pg_iter);
3168 if (procarr[pg_iter] != NULL) /* Check for already completed! */
3170 if (GNUNET_OS_process_status (procarr[pg_iter], &type, &return_code) !=
3173 ret = GNUNET_SYSERR;
3175 else if ((type != GNUNET_OS_PROCESS_EXITED) || (return_code != 0))
3177 ret = GNUNET_SYSERR;
3181 GNUNET_OS_process_close (procarr[pg_iter]);
3182 procarr[pg_iter] = NULL;
3184 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, _("File %d copied\n"), pg_iter);
3190 if (ret == GNUNET_SYSERR)
3192 /* FIXME: why sleep here? -CG */
3198 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
3199 _("Finished copying all blacklist files!\n"));
3201 GNUNET_free (procarr);
3205 /* Forward Declaration */
3207 schedule_connect (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc);
3210 * Choose a random peer's next connection to create, and
3211 * call schedule_connect to set up the connect task.
3213 * @param pg the peer group to connect
3216 preschedule_connect (struct GNUNET_TESTING_PeerGroup *pg)
3218 struct ConnectTopologyContext *ct_ctx = &pg->ct_ctx;
3219 struct PeerConnection *connection_iter;
3220 struct ConnectContext *connect_context;
3221 uint32_t random_peer;
3223 if (ct_ctx->remaining_connections == 0)
3226 GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK, pg->total);
3227 while (pg->peers[random_peer].connect_peers_head == NULL)
3229 GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK, pg->total);
3231 connection_iter = pg->peers[random_peer].connect_peers_head;
3232 connect_context = GNUNET_malloc (sizeof (struct ConnectContext));
3233 connect_context->first_index = random_peer;
3234 connect_context->second_index = connection_iter->index;
3235 connect_context->ct_ctx = ct_ctx;
3236 connect_context->task =
3237 GNUNET_SCHEDULER_add_now (&schedule_connect, connect_context);
3238 GNUNET_CONTAINER_DLL_insert (pg->cc_head, pg->cc_tail, connect_context);
3239 GNUNET_CONTAINER_DLL_remove (pg->peers[random_peer].connect_peers_head,
3240 pg->peers[random_peer].connect_peers_tail,
3242 GNUNET_free (connection_iter);
3243 ct_ctx->remaining_connections--;
3247 /* Forward declaration */
3249 schedule_send_hellos (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc);
3252 * Close connections and free the hello context.
3254 * @param cls the 'struct SendHelloContext *'
3255 * @param tc scheduler context
3258 free_hello_context (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
3260 struct SendHelloContext *send_hello_context = cls;
3262 if (send_hello_context->peer->daemon->server != NULL)
3264 GNUNET_CORE_disconnect (send_hello_context->peer->daemon->server);
3265 send_hello_context->peer->daemon->server = NULL;
3267 if (send_hello_context->peer->daemon->th != NULL)
3269 GNUNET_TRANSPORT_disconnect (send_hello_context->peer->daemon->th);
3270 send_hello_context->peer->daemon->th = NULL;
3272 if (send_hello_context->core_connect_task != GNUNET_SCHEDULER_NO_TASK)
3274 GNUNET_SCHEDULER_cancel (send_hello_context->core_connect_task);
3275 send_hello_context->core_connect_task = GNUNET_SCHEDULER_NO_TASK;
3277 send_hello_context->pg->outstanding_connects--;
3278 GNUNET_free (send_hello_context);
3282 * For peers that haven't yet connected, notify
3283 * the caller that they have failed (timeout).
3285 * @param cls the 'struct SendHelloContext *'
3286 * @param tc scheduler context
3289 notify_remaining_connections_failed (void *cls,
3290 const struct GNUNET_SCHEDULER_TaskContext
3293 struct SendHelloContext *send_hello_context = cls;
3294 struct GNUNET_TESTING_PeerGroup *pg = send_hello_context->pg;
3295 struct PeerConnection *connection;
3297 GNUNET_CORE_disconnect (send_hello_context->peer->daemon->server);
3298 send_hello_context->peer->daemon->server = NULL;
3300 connection = send_hello_context->peer->connect_peers_head;
3302 while (connection != NULL)
3304 if (pg->notify_connection != NULL)
3306 pg->notify_connection (pg->notify_connection_cls, &send_hello_context->peer->daemon->id, &pg->peers[connection->index].daemon->id, 0, /* FIXME */
3307 send_hello_context->peer->daemon->cfg,
3308 pg->peers[connection->index].daemon->cfg,
3309 send_hello_context->peer->daemon,
3310 pg->peers[connection->index].daemon,
3311 "Peers failed to connect (timeout)");
3313 GNUNET_CONTAINER_DLL_remove (send_hello_context->peer->connect_peers_head,
3314 send_hello_context->peer->connect_peers_tail,
3316 GNUNET_free (connection);
3317 connection = connection->next;
3319 GNUNET_SCHEDULER_add_now (&free_hello_context, send_hello_context);
3321 other_peer = &pg->peers[connection->index];
3326 * For peers that haven't yet connected, send
3327 * CORE connect requests.
3329 * @param cls the 'struct SendHelloContext *'
3330 * @param tc scheduler context
3333 send_core_connect_requests (void *cls,
3334 const struct GNUNET_SCHEDULER_TaskContext *tc)
3336 struct SendHelloContext *send_hello_context = cls;
3337 struct PeerConnection *conn;
3339 GNUNET_assert (send_hello_context->peer->daemon->server != NULL);
3341 send_hello_context->core_connect_task = GNUNET_SCHEDULER_NO_TASK;
3343 send_hello_context->connect_attempts++;
3344 if (send_hello_context->connect_attempts <
3345 send_hello_context->pg->ct_ctx.connect_attempts)
3347 conn = send_hello_context->peer->connect_peers_head;
3348 while (conn != NULL)
3350 GNUNET_TRANSPORT_try_connect (send_hello_context->peer->daemon->th,
3351 &send_hello_context->pg->peers[conn->index].daemon->id);
3354 send_hello_context->core_connect_task =
3355 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_divide
3356 (send_hello_context->pg->
3357 ct_ctx.connect_timeout,
3358 send_hello_context->pg->
3359 ct_ctx.connect_attempts),
3360 &send_core_connect_requests,
3361 send_hello_context);
3365 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
3366 "Timeout before all connections created, marking rest as failed!\n");
3367 GNUNET_SCHEDULER_add_now (¬ify_remaining_connections_failed,
3368 send_hello_context);
3374 * Success, connection is up. Signal client our success.
3376 * @param cls our "struct SendHelloContext"
3377 * @param peer identity of the peer that has connected
3378 * @param atsi performance information
3380 * FIXME: remove peers from BOTH lists, call notify twice, should
3381 * double the speed of connections as long as the list iteration
3382 * doesn't take too long!
3385 core_connect_notify (void *cls, const struct GNUNET_PeerIdentity *peer,
3386 const struct GNUNET_ATS_Information *atsi)
3388 struct SendHelloContext *send_hello_context = cls;
3389 struct PeerConnection *connection;
3390 struct GNUNET_TESTING_PeerGroup *pg = send_hello_context->pg;
3393 struct PeerData *other_peer;
3396 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Connected peer %s to peer %s\n",
3397 ctx->d1->shortname, GNUNET_i2s (peer));
3401 memcmp (&send_hello_context->peer->daemon->id, peer,
3402 sizeof (struct GNUNET_PeerIdentity)))
3405 connection = send_hello_context->peer->connect_peers_head;
3410 while ((connection != NULL) &&
3412 memcmp (&pg->peers[connection->index].daemon->id, peer,
3413 sizeof (struct GNUNET_PeerIdentity))))
3415 connection = connection->next;
3418 if (connection == NULL)
3420 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
3421 "Connected peer %s to %s, not in list (no problem(?))\n",
3422 GNUNET_i2s (peer), send_hello_context->peer->daemon->shortname);
3427 other_peer = &pg->peers[connection->index];
3429 if (pg->notify_connection != NULL)
3431 pg->notify_connection (pg->notify_connection_cls, &send_hello_context->peer->daemon->id, peer, 0, /* FIXME */
3432 send_hello_context->peer->daemon->cfg,
3433 pg->peers[connection->index].daemon->cfg,
3434 send_hello_context->peer->daemon,
3435 pg->peers[connection->index].daemon, NULL);
3437 GNUNET_CONTAINER_DLL_remove (send_hello_context->peer->connect_peers_head,
3438 send_hello_context->peer->connect_peers_tail,
3440 GNUNET_free (connection);
3444 /* Notify of reverse connection and remove from other peers list of outstanding */
3445 if (other_peer != NULL)
3447 connection = other_peer->connect_peers_head;
3448 while ((connection != NULL) &&
3450 memcmp (&send_hello_context->peer->daemon->id,
3451 &pg->peers[connection->index].daemon->id,
3452 sizeof (struct GNUNET_PeerIdentity))))
3454 connection = connection->next;
3456 if (connection != NULL)
3458 if (pg->notify_connection != NULL)
3460 pg->notify_connection (pg->notify_connection_cls, peer, &send_hello_context->peer->daemon->id, 0, /* FIXME */
3461 pg->peers[connection->index].daemon->cfg,
3462 send_hello_context->peer->daemon->cfg,
3463 pg->peers[connection->index].daemon,
3464 send_hello_context->peer->daemon, NULL);
3467 GNUNET_CONTAINER_DLL_remove (other_peer->connect_peers_head,
3468 other_peer->connect_peers_tail, connection);
3469 GNUNET_free (connection);
3474 if (send_hello_context->peer->connect_peers_head == NULL)
3476 GNUNET_SCHEDULER_add_now (&free_hello_context, send_hello_context);
3481 * Notify of a successful connection to the core service.
3483 * @param cls a struct SendHelloContext *
3484 * @param server handle to the core service
3485 * @param my_identity the peer identity of this peer
3488 core_init (void *cls, struct GNUNET_CORE_Handle *server,
3489 struct GNUNET_PeerIdentity *my_identity)
3491 struct SendHelloContext *send_hello_context = cls;
3493 send_hello_context->core_ready = GNUNET_YES;
3497 * Function called once a hello has been sent
3498 * to the transport, move on to the next one
3499 * or go away forever.
3501 * @param cls the 'struct SendHelloContext *'
3502 * @param tc scheduler context
3505 hello_sent_callback (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
3507 struct SendHelloContext *send_hello_context = cls;
3509 //unsigned int pg_iter;
3510 if ((tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN) != 0)
3512 GNUNET_free (send_hello_context);
3516 send_hello_context->pg->remaining_hellos--;
3518 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Sent HELLO, have %d remaining!\n",
3519 send_hello_context->pg->remaining_hellos);
3521 if (send_hello_context->peer_pos == NULL) /* All HELLOs (for this peer!) have been transmitted! */
3524 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
3525 "All hellos for this peer sent, disconnecting transport!\n");
3527 GNUNET_assert (send_hello_context->peer->daemon->th != NULL);
3528 GNUNET_TRANSPORT_disconnect (send_hello_context->peer->daemon->th);
3529 send_hello_context->peer->daemon->th = NULL;
3530 GNUNET_assert (send_hello_context->peer->daemon->server == NULL);
3531 send_hello_context->peer->daemon->server =
3532 GNUNET_CORE_connect (send_hello_context->peer->cfg, 1,
3533 send_hello_context, &core_init,
3534 &core_connect_notify, NULL, NULL, NULL, GNUNET_NO,
3535 NULL, GNUNET_NO, no_handlers);
3537 send_hello_context->core_connect_task =
3538 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_divide
3539 (send_hello_context->pg->
3540 ct_ctx.connect_timeout,
3541 send_hello_context->pg->
3542 ct_ctx.connect_attempts),
3543 &send_core_connect_requests,
3544 send_hello_context);
3547 GNUNET_SCHEDULER_add_now (&schedule_send_hellos, send_hello_context);
3551 * Connect to a peer, give it all the HELLO's of those peers
3552 * we will later ask it to connect to.
3554 * @param ct_ctx the overall connection context
3557 schedule_send_hellos (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
3559 struct SendHelloContext *send_hello_context = cls;
3560 struct GNUNET_TESTING_PeerGroup *pg = send_hello_context->pg;
3562 if ((tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN) != 0)
3564 GNUNET_free (send_hello_context);
3568 GNUNET_assert (send_hello_context->peer_pos != NULL); /* All of the HELLO sends to be scheduled have been scheduled! */
3570 if (((send_hello_context->peer->daemon->th == NULL) &&
3571 (pg->outstanding_connects > pg->max_outstanding_connections)) ||
3572 (pg->stop_connects == GNUNET_YES))
3574 #if VERBOSE_TESTING > 2
3575 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
3577 ("Delaying connect, we have too many outstanding connections!\n"));
3579 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply
3580 (GNUNET_TIME_UNIT_MILLISECONDS, 100),
3581 &schedule_send_hellos, send_hello_context);
3585 #if VERBOSE_TESTING > 2
3586 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
3587 _("Creating connection, outstanding_connections is %d\n"),
3588 outstanding_connects);
3590 if (send_hello_context->peer->daemon->th == NULL)
3592 pg->outstanding_connects++; /* Actual TRANSPORT, CORE connections! */
3593 send_hello_context->peer->daemon->th =
3594 GNUNET_TRANSPORT_connect (send_hello_context->peer->cfg, NULL,
3595 send_hello_context, NULL, NULL, NULL);
3598 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
3599 _("Offering HELLO of peer %s to peer %s\n"),
3600 send_hello_context->peer->daemon->shortname,
3601 pg->peers[send_hello_context->peer_pos->index].
3604 GNUNET_TRANSPORT_offer_hello (send_hello_context->peer->daemon->th,
3605 (const struct GNUNET_MessageHeader *)
3606 pg->peers[send_hello_context->peer_pos->
3607 index].daemon->hello,
3608 &hello_sent_callback, send_hello_context);
3609 send_hello_context->peer_pos = send_hello_context->peer_pos->next;
3610 GNUNET_assert (send_hello_context->peer->daemon->th != NULL);
3616 * Internal notification of a connection, kept so that we can ensure some connections
3617 * happen instead of flooding all testing daemons with requests to connect.
3620 internal_connect_notify (void *cls, const struct GNUNET_PeerIdentity *first,
3621 const struct GNUNET_PeerIdentity *second,
3623 const struct GNUNET_CONFIGURATION_Handle *first_cfg,
3624 const struct GNUNET_CONFIGURATION_Handle *second_cfg,
3625 struct GNUNET_TESTING_Daemon *first_daemon,
3626 struct GNUNET_TESTING_Daemon *second_daemon,
3629 struct ConnectContext *connect_ctx = cls;
3630 struct ConnectTopologyContext *ct_ctx = connect_ctx->ct_ctx;
3631 struct GNUNET_TESTING_PeerGroup *pg = ct_ctx->pg;
3632 struct PeerConnection *connection;
3634 GNUNET_assert (NULL != connect_ctx->cc);
3635 connect_ctx->cc = NULL;
3636 GNUNET_assert (0 < pg->outstanding_connects);
3637 pg->outstanding_connects--;
3638 GNUNET_CONTAINER_DLL_remove (pg->cc_head, pg->cc_tail, connect_ctx);
3640 * Check whether the inverse connection has been scheduled yet,
3641 * if not, we can remove it from the other peers list and avoid
3642 * even trying to connect them again!
3644 connection = pg->peers[connect_ctx->second_index].connect_peers_head;
3649 while ((connection != NULL) &&
3651 memcmp (first, &pg->peers[connection->index].daemon->id,
3652 sizeof (struct GNUNET_PeerIdentity))))
3653 connection = connection->next;
3655 if (connection != NULL) /* Can safely remove! */
3657 GNUNET_assert (0 < ct_ctx->remaining_connections);
3658 ct_ctx->remaining_connections--;
3659 if (pg->notify_connection != NULL) /* Notify of reverse connection */
3660 pg->notify_connection (pg->notify_connection_cls, second, first, distance,
3661 second_cfg, first_cfg, second_daemon, first_daemon,
3664 GNUNET_CONTAINER_DLL_remove (pg->
3666 second_index].connect_peers_head,
3667 pg->peers[connect_ctx->
3668 second_index].connect_peers_tail,
3670 GNUNET_free (connection);
3673 if (ct_ctx->remaining_connections == 0)
3675 if (ct_ctx->notify_connections_done != NULL)
3677 ct_ctx->notify_connections_done (ct_ctx->notify_cls, NULL);
3678 ct_ctx->notify_connections_done = NULL;
3682 preschedule_connect (pg);
3684 if (pg->notify_connection != NULL)
3685 pg->notify_connection (pg->notify_connection_cls, first, second, distance,
3686 first_cfg, second_cfg, first_daemon, second_daemon,
3688 GNUNET_free (connect_ctx);
3692 * Either delay a connection (because there are too many outstanding)
3693 * or schedule it for right now.
3695 * @param cls a connection context
3696 * @param tc the task runtime context
3699 schedule_connect (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
3701 struct ConnectContext *connect_context = cls;
3702 struct GNUNET_TESTING_PeerGroup *pg = connect_context->ct_ctx->pg;
3704 connect_context->task = GNUNET_SCHEDULER_NO_TASK;
3705 if ((tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN) != 0)
3708 if ((pg->outstanding_connects > pg->max_outstanding_connections) ||
3709 (pg->stop_connects == GNUNET_YES))
3712 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
3714 ("Delaying connect, we have too many outstanding connections!\n"));
3716 connect_context->task =
3717 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply
3718 (GNUNET_TIME_UNIT_MILLISECONDS, 100),
3719 &schedule_connect, connect_context);
3723 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
3725 ("Creating connection, outstanding_connections is %d (max %d)\n"),
3726 pg->outstanding_connects, pg->max_outstanding_connections);
3728 pg->outstanding_connects++;
3729 pg->total_connects_scheduled++;
3730 GNUNET_assert (NULL == connect_context->cc);
3731 connect_context->cc =
3732 GNUNET_TESTING_daemons_connect (pg->
3733 peers[connect_context->
3734 first_index].daemon,
3735 pg->peers[connect_context->
3736 second_index].daemon,
3737 connect_context->ct_ctx->connect_timeout,
3738 connect_context->ct_ctx->connect_attempts,
3744 &internal_connect_notify,
3751 * Iterator for actually scheduling connections to be created
3752 * between two peers.
3754 * @param cls closure, a GNUNET_TESTING_Daemon
3755 * @param key the key the second Daemon was stored under
3756 * @param value the GNUNET_TESTING_Daemon that the first is to connect to
3758 * @return GNUNET_YES to continue iteration
3761 connect_iterator (void *cls, const GNUNET_HashCode * key, void *value)
3763 struct ConnectTopologyContext *ct_ctx = cls;
3764 struct PeerData *first = ct_ctx->first;
3765 struct GNUNET_TESTING_Daemon *second = value;
3766 struct ConnectContext *connect_context;
3768 connect_context = GNUNET_malloc (sizeof (struct ConnectContext));
3769 connect_context->first = first->daemon;
3770 connect_context->second = second;
3771 connect_context->ct_ctx = ct_ctx;
3772 connect_context->task =
3773 GNUNET_SCHEDULER_add_now (&schedule_connect, connect_context);
3774 GNUNET_CONTAINER_DLL_insert (ct_ctx->pg->cc_head, ct_ctx->pg->cc_tail,
3782 * Iterator for copying all entries in the allowed hashmap to the
3785 * @param cls closure, a GNUNET_TESTING_Daemon
3786 * @param key the key the second Daemon was stored under
3787 * @param value the GNUNET_TESTING_Daemon that the first is to connect to
3789 * @return GNUNET_YES to continue iteration
3792 copy_topology_iterator (void *cls, const GNUNET_HashCode * key, void *value)
3794 struct PeerData *first = cls;
3796 GNUNET_assert (GNUNET_OK ==
3797 GNUNET_CONTAINER_multihashmap_put (first->connect_peers, key,
3799 GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY));
3806 * Make the peers to connect the same as those that are allowed to be
3809 * @param pg the peer group
3812 copy_allowed_topology (struct GNUNET_TESTING_PeerGroup *pg)
3814 unsigned int pg_iter;
3819 struct PeerConnection *iter;
3823 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
3826 iter = pg->peers[pg_iter].allowed_peers_head;
3827 while (iter != NULL)
3829 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
3830 "Creating connection between %d and %d\n", pg_iter,
3832 total += add_connections (pg, pg_iter, iter->index, CONNECT, GNUNET_YES);
3833 //total += add_actual_connections(pg, pg_iter, iter->index);
3838 GNUNET_CONTAINER_multihashmap_iterate (pg->peers[pg_iter].allowed_peers,
3839 ©_topology_iterator,
3840 &pg->peers[pg_iter]);
3842 if (GNUNET_SYSERR == ret)
3843 return GNUNET_SYSERR;
3845 total = total + ret;
3852 * Connect the topology as specified by the PeerConnection's
3853 * of each peer in the peer group
3855 * @param pg the peer group we are dealing with
3856 * @param connect_timeout how long try connecting two peers
3857 * @param connect_attempts how many times (max) to attempt
3858 * @param notify_callback callback to notify when finished
3859 * @param notify_cls closure for notify callback
3861 * @return the number of connections that will be attempted
3864 connect_topology (struct GNUNET_TESTING_PeerGroup *pg,
3865 struct GNUNET_TIME_Relative connect_timeout,
3866 unsigned int connect_attempts,
3867 GNUNET_TESTING_NotifyCompletion notify_callback,
3870 unsigned int pg_iter;
3874 struct PeerConnection *connection_iter;
3877 struct SendHelloContext *send_hello_context;
3881 pg->ct_ctx.notify_connections_done = notify_callback;
3882 pg->ct_ctx.notify_cls = notify_cls;
3885 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
3888 connection_iter = pg->peers[pg_iter].connect_peers_head;
3889 while (connection_iter != NULL)
3891 connection_iter = connection_iter->next;
3896 GNUNET_CONTAINER_multihashmap_size (pg->peers[pg_iter].connect_peers);
3903 pg->ct_ctx.connect_timeout = connect_timeout;
3904 pg->ct_ctx.connect_attempts = connect_attempts;
3905 pg->ct_ctx.remaining_connections = total;
3908 /* First give all peers the HELLO's of other peers (connect to first peer's transport service, give HELLO's of other peers, continue...) */
3909 pg->remaining_hellos = total;
3910 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
3912 send_hello_context = GNUNET_malloc (sizeof (struct SendHelloContext));
3913 send_hello_context->peer = &pg->peers[pg_iter];
3914 send_hello_context->peer_pos = pg->peers[pg_iter].connect_peers_head;
3915 send_hello_context->pg = pg;
3916 GNUNET_SCHEDULER_add_now (&schedule_send_hellos, send_hello_context);
3919 for (pg_iter = 0; pg_iter < pg->max_outstanding_connections; pg_iter++)
3921 preschedule_connect (pg);
3929 * Takes a peer group and creates a topology based on the
3930 * one specified. Creates a topology means generates friend
3931 * files for the peers so they can only connect to those allowed
3932 * by the topology. This will only have an effect once peers
3933 * are started if the FRIENDS_ONLY option is set in the base
3934 * config. Also takes an optional restrict topology which
3935 * disallows connections based on particular transports
3936 * UNLESS they are specified in the restricted topology.
3938 * @param pg the peer group struct representing the running peers
3939 * @param topology which topology to connect the peers in
3940 * @param restrict_topology disallow restrict_transports transport
3941 * connections to peers NOT in this topology
3942 * use GNUNET_TESTING_TOPOLOGY_NONE for no restrictions
3943 * @param restrict_transports space delimited list of transports to blacklist
3944 * to create restricted topology
3946 * @return the maximum number of connections were all allowed peers
3947 * connected to each other
3950 GNUNET_TESTING_create_topology (struct GNUNET_TESTING_PeerGroup *pg,
3951 enum GNUNET_TESTING_Topology topology,
3952 enum GNUNET_TESTING_Topology restrict_topology,
3953 const char *restrict_transports)
3957 unsigned int num_connections;
3958 int unblacklisted_connections;
3960 struct PeerConnection *conn_iter;
3961 struct PeerConnection *temp_conn;
3967 for (i = 0; i < pg->total; i++)
3969 pg->peers[i].allowed_peers = GNUNET_CONTAINER_multihashmap_create (100);
3970 pg->peers[i].connect_peers = GNUNET_CONTAINER_multihashmap_create (100);
3971 pg->peers[i].blacklisted_peers = GNUNET_CONTAINER_multihashmap_create (100);
3972 pg->peers[i].pg = pg;
3978 case GNUNET_TESTING_TOPOLOGY_CLIQUE:
3980 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, _("Creating clique topology\n"));
3982 num_connections = create_clique (pg, &add_connections, ALLOWED, GNUNET_NO);
3984 case GNUNET_TESTING_TOPOLOGY_SMALL_WORLD_RING:
3986 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
3987 _("Creating small world (ring) topology\n"));
3989 num_connections = create_small_world_ring (pg, &add_connections, ALLOWED);
3991 case GNUNET_TESTING_TOPOLOGY_SMALL_WORLD:
3993 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
3994 _("Creating small world (2d-torus) topology\n"));
3996 num_connections = create_small_world (pg, &add_connections, ALLOWED);
3998 case GNUNET_TESTING_TOPOLOGY_RING:
4000 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, _("Creating ring topology\n"));
4002 num_connections = create_ring (pg, &add_connections, ALLOWED);
4004 case GNUNET_TESTING_TOPOLOGY_2D_TORUS:
4006 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, _("Creating 2d torus topology\n"));
4008 num_connections = create_2d_torus (pg, &add_connections, ALLOWED);
4010 case GNUNET_TESTING_TOPOLOGY_ERDOS_RENYI:
4012 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, _("Creating Erdos-Renyi topology\n"));
4014 num_connections = create_erdos_renyi (pg, &add_connections, ALLOWED);
4016 case GNUNET_TESTING_TOPOLOGY_INTERNAT:
4018 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, _("Creating InterNAT topology\n"));
4020 num_connections = create_nated_internet (pg, &add_connections, ALLOWED);
4022 case GNUNET_TESTING_TOPOLOGY_SCALE_FREE:
4024 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, _("Creating Scale Free topology\n"));
4026 num_connections = create_scale_free (pg, &add_connections, ALLOWED);
4028 case GNUNET_TESTING_TOPOLOGY_LINE:
4030 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
4031 _("Creating straight line topology\n"));
4033 num_connections = create_line (pg, &add_connections, ALLOWED);
4035 case GNUNET_TESTING_TOPOLOGY_FROM_FILE:
4037 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, _("Creating topology from file!\n"));
4040 GNUNET_CONFIGURATION_get_value_string (pg->cfg, "testing",
4041 "topology_file", &filename))
4043 create_from_file (pg, filename, &add_connections, ALLOWED);
4046 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
4047 "Missing configuration option TESTING:TOPOLOGY_FILE for creating topology from file!\n");
4048 num_connections = 0;
4051 case GNUNET_TESTING_TOPOLOGY_NONE:
4053 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
4055 ("Creating no allowed topology (all peers can connect at core level)\n"));
4057 num_connections = pg->total * pg->total; /* Clique is allowed! */
4060 num_connections = 0;
4065 GNUNET_CONFIGURATION_get_value_yesno (pg->cfg, "TESTING", "F2F"))
4067 ret = create_and_copy_friend_files (pg);
4068 if (ret != GNUNET_OK)
4071 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
4072 _("Failed during friend file copying!\n"));
4074 return GNUNET_SYSERR;
4079 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
4080 _("Friend files created/copied successfully!\n"));
4085 /* Use the create clique method to initially set all connections as blacklisted. */
4086 if ((restrict_topology != GNUNET_TESTING_TOPOLOGY_NONE) &&
4087 (restrict_topology != GNUNET_TESTING_TOPOLOGY_FROM_FILE))
4088 create_clique (pg, &add_connections, BLACKLIST, GNUNET_NO);
4090 return num_connections;
4092 unblacklisted_connections = 0;
4093 /* Un-blacklist connections as per the topology specified */
4094 switch (restrict_topology)
4096 case GNUNET_TESTING_TOPOLOGY_CLIQUE:
4098 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
4099 _("Blacklisting all but clique topology\n"));
4101 unblacklisted_connections =
4102 create_clique (pg, &remove_connections, BLACKLIST, GNUNET_NO);
4104 case GNUNET_TESTING_TOPOLOGY_SMALL_WORLD_RING:
4106 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
4107 _("Blacklisting all but small world (ring) topology\n"));
4109 unblacklisted_connections =
4110 create_small_world_ring (pg, &remove_connections, BLACKLIST);
4112 case GNUNET_TESTING_TOPOLOGY_SMALL_WORLD:
4114 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
4115 _("Blacklisting all but small world (2d-torus) topology\n"));
4117 unblacklisted_connections =
4118 create_small_world (pg, &remove_connections, BLACKLIST);
4120 case GNUNET_TESTING_TOPOLOGY_RING:
4122 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
4123 _("Blacklisting all but ring topology\n"));
4125 unblacklisted_connections =
4126 create_ring (pg, &remove_connections, BLACKLIST);
4128 case GNUNET_TESTING_TOPOLOGY_2D_TORUS:
4130 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
4131 _("Blacklisting all but 2d torus topology\n"));
4133 unblacklisted_connections =
4134 create_2d_torus (pg, &remove_connections, BLACKLIST);
4136 case GNUNET_TESTING_TOPOLOGY_ERDOS_RENYI:
4138 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
4139 _("Blacklisting all but Erdos-Renyi topology\n"));
4141 unblacklisted_connections =
4142 create_erdos_renyi (pg, &remove_connections, BLACKLIST);
4144 case GNUNET_TESTING_TOPOLOGY_INTERNAT:
4146 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
4147 _("Blacklisting all but InterNAT topology\n"));
4151 for (off = 0; off < pg->total; off++)
4153 conn_iter = pg->peers[off].allowed_peers_head;
4154 while (conn_iter != NULL)
4156 temp_conn = conn_iter->next;
4157 GNUNET_free (conn_iter);
4158 conn_iter = temp_conn;
4160 pg->peers[off].allowed_peers_head = NULL;
4161 pg->peers[off].allowed_peers_tail = NULL;
4163 conn_iter = pg->peers[off].connect_peers_head;
4164 while (conn_iter != NULL)
4166 temp_conn = conn_iter->next;
4167 GNUNET_free (conn_iter);
4168 conn_iter = temp_conn;
4170 pg->peers[off].connect_peers_head = NULL;
4171 pg->peers[off].connect_peers_tail = NULL;
4173 unblacklisted_connections =
4174 create_nated_internet_copy (pg, &remove_connections, BLACKLIST);
4176 unblacklisted_connections =
4177 create_nated_internet (pg, &remove_connections, BLACKLIST);
4181 case GNUNET_TESTING_TOPOLOGY_SCALE_FREE:
4183 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
4184 _("Blacklisting all but Scale Free topology\n"));
4186 unblacklisted_connections =
4187 create_scale_free (pg, &remove_connections, BLACKLIST);
4189 case GNUNET_TESTING_TOPOLOGY_LINE:
4191 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
4192 _("Blacklisting all but straight line topology\n"));
4194 unblacklisted_connections =
4195 create_line (pg, &remove_connections, BLACKLIST);
4200 if ((unblacklisted_connections > 0) && (restrict_transports != NULL))
4203 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Creating blacklist with `%s'\n",
4204 restrict_transports);
4206 ret = create_and_copy_blacklist_files (pg, restrict_transports);
4207 if (ret != GNUNET_OK)
4210 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
4211 _("Failed during blacklist file copying!\n"));
4218 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
4219 _("Blacklist files created/copied successfully!\n"));
4223 return num_connections;
4228 * Iterator for choosing random peers to connect.
4230 * @param cls closure, a RandomContext
4231 * @param key the key the second Daemon was stored under
4232 * @param value the GNUNET_TESTING_Daemon that the first is to connect to
4234 * @return GNUNET_YES to continue iteration
4237 random_connect_iterator (void *cls, const GNUNET_HashCode * key, void *value)
4239 struct RandomContext *random_ctx = cls;
4240 double random_number;
4241 uint32_t second_pos;
4242 GNUNET_HashCode first_hash;
4246 GNUNET_CRYPTO_random_u64 (GNUNET_CRYPTO_QUALITY_WEAK,
4247 UINT64_MAX)) / ((double) UINT64_MAX);
4248 if (random_number < random_ctx->percentage)
4250 GNUNET_assert (GNUNET_OK ==
4251 GNUNET_CONTAINER_multihashmap_put (random_ctx->
4252 first->connect_peers_working_set,
4254 GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY));
4257 /* Now we have considered this particular connection, remove it from the second peer so it's not double counted */
4258 uid_from_hash (key, &second_pos);
4259 hash_from_uid (random_ctx->first_uid, &first_hash);
4260 GNUNET_assert (random_ctx->pg->total > second_pos);
4261 GNUNET_assert (GNUNET_YES ==
4262 GNUNET_CONTAINER_multihashmap_remove (random_ctx->
4264 [second_pos].connect_peers,
4273 * Iterator for adding at least X peers to a peers connection set.
4275 * @param cls closure, MinimumContext
4276 * @param key the key the second Daemon was stored under
4277 * @param value the GNUNET_TESTING_Daemon that the first is to connect to
4279 * @return GNUNET_YES to continue iteration
4282 minimum_connect_iterator (void *cls, const GNUNET_HashCode * key, void *value)
4284 struct MinimumContext *min_ctx = cls;
4285 uint32_t second_pos;
4286 GNUNET_HashCode first_hash;
4289 if (GNUNET_CONTAINER_multihashmap_size
4290 (min_ctx->first->connect_peers_working_set) < min_ctx->num_to_add)
4292 for (i = 0; i < min_ctx->num_to_add; i++)
4294 if (min_ctx->pg_array[i] == min_ctx->current)
4296 GNUNET_assert (GNUNET_OK ==
4297 GNUNET_CONTAINER_multihashmap_put (min_ctx->
4298 first->connect_peers_working_set,
4300 GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY));
4301 uid_from_hash (key, &second_pos);
4302 hash_from_uid (min_ctx->first_uid, &first_hash);
4303 GNUNET_assert (min_ctx->pg->total > second_pos);
4304 GNUNET_assert (GNUNET_OK ==
4305 GNUNET_CONTAINER_multihashmap_put (min_ctx->
4307 [second_pos].connect_peers_working_set,
4311 GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY));
4312 /* Now we have added this particular connection, remove it from the second peer's map so it's not double counted */
4313 GNUNET_assert (GNUNET_YES ==
4314 GNUNET_CONTAINER_multihashmap_remove (min_ctx->
4316 [second_pos].connect_peers,
4326 return GNUNET_NO; /* We can stop iterating, we have enough peers! */
4331 * Iterator for adding peers to a connection set based on a depth first search.
4333 * @param cls closure, MinimumContext
4334 * @param key the key the second daemon was stored under
4335 * @param value the GNUNET_TESTING_Daemon that the first is to connect to
4337 * @return GNUNET_YES to continue iteration
4340 dfs_connect_iterator (void *cls, const GNUNET_HashCode * key, void *value)
4342 struct DFSContext *dfs_ctx = cls;
4343 GNUNET_HashCode first_hash;
4345 if (dfs_ctx->current == dfs_ctx->chosen)
4347 GNUNET_assert (GNUNET_OK ==
4348 GNUNET_CONTAINER_multihashmap_put (dfs_ctx->
4349 first->connect_peers_working_set,
4351 GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY));
4352 uid_from_hash (key, &dfs_ctx->second_uid);
4353 hash_from_uid (dfs_ctx->first_uid, &first_hash);
4354 GNUNET_assert (GNUNET_OK ==
4355 GNUNET_CONTAINER_multihashmap_put (dfs_ctx->
4357 second_uid].connect_peers_working_set,
4359 dfs_ctx->first->daemon,
4360 GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY));
4361 GNUNET_assert (GNUNET_YES ==
4362 GNUNET_CONTAINER_multihashmap_remove (dfs_ctx->
4364 [dfs_ctx->second_uid].connect_peers,
4368 /* Can't remove second from first yet because we are currently iterating, hence the return value in the DFSContext! */
4369 return GNUNET_NO; /* We have found our peer, don't iterate more */
4378 * From the set of connections possible, choose percentage percent of connections
4379 * to actually connect.
4381 * @param pg the peergroup we are dealing with
4382 * @param percentage what percent of total connections to make
4385 choose_random_connections (struct GNUNET_TESTING_PeerGroup *pg,
4391 struct PeerConnection *conn_iter;
4392 double random_number;
4394 struct RandomContext random_ctx;
4397 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
4400 conn_iter = pg->peers[pg_iter].connect_peers_head;
4401 while (conn_iter != NULL)
4405 GNUNET_CRYPTO_random_u64 (GNUNET_CRYPTO_QUALITY_WEAK,
4406 UINT64_MAX)) / ((double) UINT64_MAX);
4407 if (random_number < percentage)
4409 add_connections (pg, pg_iter, conn_iter->index, WORKING_SET,
4412 conn_iter = conn_iter->next;
4415 random_ctx.first_uid = pg_iter;
4416 random_ctx.first = &pg->peers[pg_iter];
4417 random_ctx.percentage = percentage;
4419 pg->peers[pg_iter].connect_peers_working_set =
4420 GNUNET_CONTAINER_multihashmap_create (pg->total);
4421 GNUNET_CONTAINER_multihashmap_iterate (pg->peers[pg_iter].connect_peers,
4422 &random_connect_iterator,
4424 /* Now remove the old connections */
4425 GNUNET_CONTAINER_multihashmap_destroy (pg->peers[pg_iter].connect_peers);
4426 /* And replace with the random set */
4427 pg->peers[pg_iter].connect_peers =
4428 pg->peers[pg_iter].connect_peers_working_set;
4432 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
4434 conn_iter = pg->peers[pg_iter].connect_peers_head;
4435 while (pg->peers[pg_iter].connect_peers_head != NULL)
4436 remove_connections (pg, pg_iter,
4437 pg->peers[pg_iter].connect_peers_head->index, CONNECT,
4440 pg->peers[pg_iter].connect_peers_head =
4441 pg->peers[pg_iter].connect_peers_working_set_head;
4442 pg->peers[pg_iter].connect_peers_tail =
4443 pg->peers[pg_iter].connect_peers_working_set_tail;
4444 pg->peers[pg_iter].connect_peers_working_set_head = NULL;
4445 pg->peers[pg_iter].connect_peers_working_set_tail = NULL;
4450 * Count the number of connections in a linked list of connections.
4452 * @param conn_list the connection list to get the count of
4454 * @return the number of elements in the list
4457 count_connections (struct PeerConnection *conn_list)
4459 struct PeerConnection *iter;
4464 while (iter != NULL)
4473 count_workingset_connections (struct GNUNET_TESTING_PeerGroup *pg)
4476 unsigned int pg_iter;
4479 struct PeerConnection *conn_iter;
4483 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
4486 conn_iter = pg->peers[pg_iter].connect_peers_working_set_head;
4487 while (conn_iter != NULL)
4490 conn_iter = conn_iter->next;
4494 GNUNET_CONTAINER_multihashmap_size (pg->
4496 [pg_iter].connect_peers_working_set);
4504 count_allowed_connections (struct GNUNET_TESTING_PeerGroup *pg)
4507 unsigned int pg_iter;
4510 struct PeerConnection *conn_iter;
4514 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
4517 conn_iter = pg->peers[pg_iter].allowed_peers_head;
4518 while (conn_iter != NULL)
4521 conn_iter = conn_iter->next;
4525 GNUNET_CONTAINER_multihashmap_size (pg->peers[pg_iter].allowed_peers);
4533 * From the set of connections possible, choose at least num connections per
4536 * @param pg the peergroup we are dealing with
4537 * @param num how many connections at least should each peer have (if possible)?
4540 choose_minimum (struct GNUNET_TESTING_PeerGroup *pg, unsigned int num)
4543 struct MinimumContext minimum_ctx;
4545 struct PeerConnection *conn_iter;
4546 unsigned int temp_list_size;
4549 uint32_t random; /* Random list entry to connect peer to */
4554 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
4556 temp_list_size = count_connections (pg->peers[pg_iter].connect_peers_head);
4557 if (temp_list_size == 0)
4559 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Peer %d has 0 connections!?!?\n",
4563 for (i = 0; i < num; i++)
4566 GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK, temp_list_size);
4567 conn_iter = pg->peers[pg_iter].connect_peers_head;
4568 for (count = 0; count < random; count++)
4569 conn_iter = conn_iter->next;
4570 /* We now have a random connection, connect it! */
4571 GNUNET_assert (conn_iter != NULL);
4572 add_connections (pg, pg_iter, conn_iter->index, WORKING_SET, GNUNET_YES);
4576 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
4578 pg->peers[pg_iter].connect_peers_working_set =
4579 GNUNET_CONTAINER_multihashmap_create (num);
4582 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
4584 minimum_ctx.first_uid = pg_iter;
4585 minimum_ctx.pg_array =
4586 GNUNET_CRYPTO_random_permute (GNUNET_CRYPTO_QUALITY_WEAK,
4587 GNUNET_CONTAINER_multihashmap_size
4588 (pg->peers[pg_iter].connect_peers));
4589 minimum_ctx.first = &pg->peers[pg_iter];
4590 minimum_ctx.pg = pg;
4591 minimum_ctx.num_to_add = num;
4592 minimum_ctx.current = 0;
4593 GNUNET_CONTAINER_multihashmap_iterate (pg->peers[pg_iter].connect_peers,
4594 &minimum_connect_iterator,
4598 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
4600 /* Remove the "old" connections */
4601 GNUNET_CONTAINER_multihashmap_destroy (pg->peers[pg_iter].connect_peers);
4602 /* And replace with the working set */
4603 pg->peers[pg_iter].connect_peers =
4604 pg->peers[pg_iter].connect_peers_working_set;
4607 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
4609 while (pg->peers[pg_iter].connect_peers_head != NULL)
4611 conn_iter = pg->peers[pg_iter].connect_peers_head;
4612 GNUNET_CONTAINER_DLL_remove (pg->peers[pg_iter].connect_peers_head,
4613 pg->peers[pg_iter].connect_peers_tail,
4615 GNUNET_free (conn_iter);
4616 /*remove_connections(pg, pg_iter, pg->peers[pg_iter].connect_peers_head->index, CONNECT, GNUNET_YES); */
4619 pg->peers[pg_iter].connect_peers_head =
4620 pg->peers[pg_iter].connect_peers_working_set_head;
4621 pg->peers[pg_iter].connect_peers_tail =
4622 pg->peers[pg_iter].connect_peers_working_set_tail;
4623 pg->peers[pg_iter].connect_peers_working_set_head = NULL;
4624 pg->peers[pg_iter].connect_peers_working_set_tail = NULL;
4629 struct FindClosestContext
4632 * The currently known closest peer.
4634 struct GNUNET_TESTING_Daemon *closest;
4637 * The info for the peer we are adding connections for.
4639 struct PeerData *curr_peer;
4642 * The distance (bits) between the current
4643 * peer and the currently known closest.
4645 unsigned int closest_dist;
4648 * The offset of the closest known peer in
4651 unsigned int closest_num;
4655 * Iterator over hash map entries of the allowed
4656 * peer connections. Find the closest, not already
4657 * connected peer and return it.
4659 * @param cls closure (struct FindClosestContext)
4660 * @param key current key code (hash of offset in pg)
4661 * @param value value in the hash map - a GNUNET_TESTING_Daemon
4662 * @return GNUNET_YES if we should continue to
4667 find_closest_peers (void *cls, const GNUNET_HashCode * key, void *value)
4669 struct FindClosestContext *closest_ctx = cls;
4670 struct GNUNET_TESTING_Daemon *daemon = value;
4672 if (((closest_ctx->closest == NULL) ||
4673 (GNUNET_CRYPTO_hash_matching_bits
4674 (&daemon->id.hashPubKey,
4675 &closest_ctx->curr_peer->daemon->id.hashPubKey) >
4676 closest_ctx->closest_dist)) &&
4678 GNUNET_CONTAINER_multihashmap_contains (closest_ctx->
4679 curr_peer->connect_peers, key)))
4681 closest_ctx->closest_dist =
4682 GNUNET_CRYPTO_hash_matching_bits (&daemon->id.hashPubKey,
4683 &closest_ctx->curr_peer->daemon->
4685 closest_ctx->closest = daemon;
4686 uid_from_hash (key, &closest_ctx->closest_num);
4692 * From the set of connections possible, choose at num connections per
4693 * peer based on depth which are closest out of those allowed. Guaranteed
4694 * to add num peers to connect to, provided there are that many peers
4695 * in the underlay topology to connect to.
4697 * @param pg the peergroup we are dealing with
4698 * @param num how many connections at least should each peer have (if possible)?
4699 * @param proc processor to actually add the connections
4700 * @param list the peer list to use
4703 add_closest (struct GNUNET_TESTING_PeerGroup *pg, unsigned int num,
4704 GNUNET_TESTING_ConnectionProcessor proc, enum PeerLists list)
4709 struct FindClosestContext closest_ctx;
4714 for (i = 0; i < num; i++) /* Each time find a closest peer (from those available) */
4716 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
4718 closest_ctx.curr_peer = &pg->peers[pg_iter];
4719 closest_ctx.closest = NULL;
4720 closest_ctx.closest_dist = 0;
4721 closest_ctx.closest_num = 0;
4722 GNUNET_CONTAINER_multihashmap_iterate (pg->peers[pg_iter].allowed_peers,
4723 &find_closest_peers, &closest_ctx);
4724 if (closest_ctx.closest != NULL)
4726 GNUNET_assert (closest_ctx.closest_num < pg->total);
4727 proc (pg, pg_iter, closest_ctx.closest_num, list);
4735 * From the set of connections possible, choose at least num connections per
4736 * peer based on depth first traversal of peer connections. If DFS leaves
4737 * peers unconnected, ensure those peers get connections.
4739 * @param pg the peergroup we are dealing with
4740 * @param num how many connections at least should each peer have (if possible)?
4743 perform_dfs (struct GNUNET_TESTING_PeerGroup *pg, unsigned int num)
4747 uint32_t starting_peer;
4748 uint32_t least_connections;
4749 uint32_t random_connection;
4752 unsigned int temp_count;
4753 struct PeerConnection *peer_iter;
4755 struct DFSContext dfs_ctx;
4756 GNUNET_HashCode second_hash;
4762 while ((count_workingset_connections (pg) < num * pg->total) &&
4763 (count_allowed_connections (pg) > 0))
4765 if (dfs_count % pg->total == 0) /* Restart the DFS at some weakly connected peer */
4767 least_connections = -1; /* Set to very high number */
4768 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
4771 count_connections (pg->
4772 peers[pg_iter].connect_peers_working_set_head);
4773 if (temp_count < least_connections)
4775 starting_peer = pg_iter;
4776 least_connections = temp_count;
4782 count_connections (pg->peers[starting_peer].connect_peers_head);
4783 if (temp_count == 0)
4784 continue; /* FIXME: infinite loop? */
4787 GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK, temp_count);
4789 peer_iter = pg->peers[starting_peer].connect_peers_head;
4790 while (temp_count < random_connection)
4792 peer_iter = peer_iter->next;
4795 GNUNET_assert (peer_iter != NULL);
4796 add_connections (pg, starting_peer, peer_iter->index, WORKING_SET,
4798 remove_connections (pg, starting_peer, peer_iter->index, CONNECT,
4800 starting_peer = peer_iter->index;
4805 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
4807 pg->peers[pg_iter].connect_peers_working_set =
4808 GNUNET_CONTAINER_multihashmap_create (num);
4813 while ((count_workingset_connections (pg) < num * pg->total) &&
4814 (count_allowed_connections (pg) > 0))
4816 if (dfs_count % pg->total == 0) /* Restart the DFS at some weakly connected peer */
4818 least_connections = -1; /* Set to very high number */
4819 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
4821 if (GNUNET_CONTAINER_multihashmap_size
4822 (pg->peers[pg_iter].connect_peers_working_set) < least_connections)
4824 starting_peer = pg_iter;
4826 GNUNET_CONTAINER_multihashmap_size (pg->
4828 [pg_iter].connect_peers_working_set);
4833 if (GNUNET_CONTAINER_multihashmap_size (pg->peers[starting_peer].connect_peers) == 0) /* Ensure there is at least one peer left to connect! */
4839 /* Choose a random peer from the chosen peers set of connections to add */
4841 GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK,
4842 GNUNET_CONTAINER_multihashmap_size (pg->peers
4843 [starting_peer].connect_peers));
4844 dfs_ctx.first_uid = starting_peer;
4845 dfs_ctx.first = &pg->peers[starting_peer];
4847 dfs_ctx.current = 0;
4849 GNUNET_CONTAINER_multihashmap_iterate (pg->
4850 peers[starting_peer].connect_peers,
4851 &dfs_connect_iterator, &dfs_ctx);
4852 /* Remove the second from the first, since we will be continuing the search and may encounter the first peer again! */
4853 hash_from_uid (dfs_ctx.second_uid, &second_hash);
4854 GNUNET_assert (GNUNET_YES ==
4855 GNUNET_CONTAINER_multihashmap_remove (pg->peers
4856 [starting_peer].connect_peers,
4860 [dfs_ctx.second_uid].daemon));
4861 starting_peer = dfs_ctx.second_uid;
4864 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
4866 /* Remove the "old" connections */
4867 GNUNET_CONTAINER_multihashmap_destroy (pg->peers[pg_iter].connect_peers);
4868 /* And replace with the working set */
4869 pg->peers[pg_iter].connect_peers =
4870 pg->peers[pg_iter].connect_peers_working_set;
4876 * Internal callback for topology information for a particular peer.
4879 internal_topology_callback (void *cls, const struct GNUNET_PeerIdentity *peer,
4880 const struct GNUNET_ATS_Information *atsi)
4882 struct CoreContext *core_ctx = cls;
4883 struct TopologyIterateContext *iter_ctx = core_ctx->iter_context;
4885 if (peer == NULL) /* Either finished, or something went wrong */
4887 iter_ctx->completed++;
4888 iter_ctx->connected--;
4889 /* One core context allocated per iteration, must free! */
4890 GNUNET_free (core_ctx);
4894 iter_ctx->topology_cb (iter_ctx->cls, &core_ctx->daemon->id, peer, NULL);
4897 if (iter_ctx->completed == iter_ctx->total)
4899 iter_ctx->topology_cb (iter_ctx->cls, NULL, NULL, NULL);
4900 /* Once all are done, free the iteration context */
4901 GNUNET_free (iter_ctx);
4906 * Check running topology iteration tasks, if below max start a new one, otherwise
4907 * schedule for some time in the future.
4910 schedule_get_topology (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
4912 struct CoreContext *core_context = cls;
4913 struct TopologyIterateContext *topology_context =
4914 (struct TopologyIterateContext *) core_context->iter_context;
4915 if ((tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN) != 0)
4918 if (topology_context->connected >
4919 topology_context->pg->max_outstanding_connections)
4921 #if VERBOSE_TESTING > 2
4922 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
4924 ("Delaying connect, we have too many outstanding connections!\n"));
4926 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply
4927 (GNUNET_TIME_UNIT_MILLISECONDS, 100),
4928 &schedule_get_topology, core_context);
4932 #if VERBOSE_TESTING > 2
4933 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
4934 _("Creating connection, outstanding_connections is %d\n"),
4935 outstanding_connects);
4937 topology_context->connected++;
4940 GNUNET_CORE_iterate_peers (core_context->daemon->cfg,
4941 &internal_topology_callback, core_context))
4943 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Topology iteration failed.\n");
4944 internal_topology_callback (core_context, NULL, NULL);
4950 * Iterate over all (running) peers in the peer group, retrieve
4951 * all connections that each currently has.
4954 GNUNET_TESTING_get_topology (struct GNUNET_TESTING_PeerGroup *pg,
4955 GNUNET_TESTING_NotifyTopology cb, void *cls)
4957 struct TopologyIterateContext *topology_context;
4958 struct CoreContext *core_ctx;
4960 unsigned int total_count;
4962 /* Allocate a single topology iteration context */
4963 topology_context = GNUNET_malloc (sizeof (struct TopologyIterateContext));
4964 topology_context->topology_cb = cb;
4965 topology_context->cls = cls;
4966 topology_context->pg = pg;
4968 for (i = 0; i < pg->total; i++)
4970 if (pg->peers[i].daemon->running == GNUNET_YES)
4972 /* Allocate one core context per core we need to connect to */
4973 core_ctx = GNUNET_malloc (sizeof (struct CoreContext));
4974 core_ctx->daemon = pg->peers[i].daemon;
4975 /* Set back pointer to topology iteration context */
4976 core_ctx->iter_context = topology_context;
4977 GNUNET_SCHEDULER_add_now (&schedule_get_topology, core_ctx);
4981 if (total_count == 0)
4983 cb (cls, NULL, NULL, "Cannot iterate over topology, no running peers!");
4984 GNUNET_free (topology_context);
4987 topology_context->total = total_count;
4992 * Callback function to process statistic values.
4993 * This handler is here only really to insert a peer
4994 * identity (or daemon) so the statistics can be uniquely
4995 * tied to a single running peer.
4997 * @param cls closure
4998 * @param subsystem name of subsystem that created the statistic
4999 * @param name the name of the datum
5000 * @param value the current value
5001 * @param is_persistent GNUNET_YES if the value is persistent, GNUNET_NO if not
5002 * @return GNUNET_OK to continue, GNUNET_SYSERR to abort iteration
5005 internal_stats_callback (void *cls, const char *subsystem, const char *name,
5006 uint64_t value, int is_persistent)
5008 struct StatsCoreContext *core_context = cls;
5009 struct StatsIterateContext *stats_context =
5010 (struct StatsIterateContext *) core_context->iter_context;
5012 return stats_context->proc (stats_context->cls, &core_context->daemon->id,
5013 subsystem, name, value, is_persistent);
5017 * Internal continuation call for statistics iteration.
5019 * @param cls closure, the CoreContext for this iteration
5020 * @param success whether or not the statistics iterations
5021 * was canceled or not (we don't care)
5024 internal_stats_cont (void *cls, int success)
5026 struct StatsCoreContext *core_context = cls;
5027 struct StatsIterateContext *stats_context =
5028 (struct StatsIterateContext *) core_context->iter_context;
5030 stats_context->connected--;
5031 stats_context->completed++;
5033 if (stats_context->completed == stats_context->total)
5035 stats_context->cont (stats_context->cls, GNUNET_YES);
5036 GNUNET_free (stats_context);
5039 if (core_context->stats_handle != NULL)
5040 GNUNET_STATISTICS_destroy (core_context->stats_handle, GNUNET_NO);
5042 GNUNET_free (core_context);
5046 * Check running topology iteration tasks, if below max start a new one, otherwise
5047 * schedule for some time in the future.
5050 schedule_get_statistics (void *cls,
5051 const struct GNUNET_SCHEDULER_TaskContext *tc)
5053 struct StatsCoreContext *core_context = cls;
5054 struct StatsIterateContext *stats_context =
5055 (struct StatsIterateContext *) core_context->iter_context;
5057 if ((tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN) != 0)
5060 if (stats_context->connected > stats_context->pg->max_outstanding_connections)
5062 #if VERBOSE_TESTING > 2
5063 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
5065 ("Delaying connect, we have too many outstanding connections!\n"));
5067 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply
5068 (GNUNET_TIME_UNIT_MILLISECONDS, 100),
5069 &schedule_get_statistics, core_context);
5073 #if VERBOSE_TESTING > 2
5074 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
5075 _("Creating connection, outstanding_connections is %d\n"),
5076 outstanding_connects);
5079 stats_context->connected++;
5080 core_context->stats_handle =
5081 GNUNET_STATISTICS_create ("testing", core_context->daemon->cfg);
5082 if (core_context->stats_handle == NULL)
5084 internal_stats_cont (core_context, GNUNET_NO);
5088 core_context->stats_get_handle =
5089 GNUNET_STATISTICS_get (core_context->stats_handle, NULL, NULL,
5090 GNUNET_TIME_relative_get_forever (),
5091 &internal_stats_cont, &internal_stats_callback,
5093 if (core_context->stats_get_handle == NULL)
5094 internal_stats_cont (core_context, GNUNET_NO);
5099 struct DuplicateStats
5102 * Next item in the list
5104 struct DuplicateStats *next;
5107 * Nasty string, concatenation of relevant information.
5109 char *unique_string;
5113 * Check whether the combination of port/host/unix domain socket
5114 * already exists in the list of peers being checked for statistics.
5116 * @param pg the peergroup in question
5117 * @param specific_peer the peer we're concerned with
5118 * @param stats_list the list to return to the caller
5120 * @return GNUNET_YES if the statistics instance has been seen already,
5121 * GNUNET_NO if not (and we may have added it to the list)
5124 stats_check_existing (struct GNUNET_TESTING_PeerGroup *pg,
5125 struct PeerData *specific_peer,
5126 struct DuplicateStats **stats_list)
5128 struct DuplicateStats *pos;
5129 char *unix_domain_socket;
5130 unsigned long long port;
5134 GNUNET_CONFIGURATION_get_value_yesno (pg->cfg, "testing",
5135 "single_statistics_per_host"))
5136 return GNUNET_NO; /* Each peer has its own statistics instance, do nothing! */
5140 GNUNET_CONFIGURATION_get_value_string (specific_peer->cfg, "statistics",
5141 "unixpath", &unix_domain_socket))
5145 GNUNET_CONFIGURATION_get_value_number (specific_peer->cfg, "statistics",
5148 GNUNET_free (unix_domain_socket);
5152 if (specific_peer->daemon->hostname != NULL)
5153 GNUNET_asprintf (&to_match, "%s%s%llu", specific_peer->daemon->hostname,
5154 unix_domain_socket, port);
5156 GNUNET_asprintf (&to_match, "%s%llu", unix_domain_socket, port);
5160 if (0 == strcmp (to_match, pos->unique_string))
5162 GNUNET_free (unix_domain_socket);
5163 GNUNET_free (to_match);
5168 pos = GNUNET_malloc (sizeof (struct DuplicateStats));
5169 pos->unique_string = to_match;
5170 pos->next = *stats_list;
5172 GNUNET_free (unix_domain_socket);
5177 * Iterate over all (running) peers in the peer group, retrieve
5178 * all statistics from each.
5180 * @param pg the peergroup to iterate statistics of
5181 * @param cont continuation to call once all stats have been retrieved
5182 * @param proc processing function for each statistic from each peer
5183 * @param cls closure to pass to proc
5187 GNUNET_TESTING_get_statistics (struct GNUNET_TESTING_PeerGroup *pg,
5188 GNUNET_STATISTICS_Callback cont,
5189 GNUNET_TESTING_STATISTICS_Iterator proc,
5192 struct StatsIterateContext *stats_context;
5193 struct StatsCoreContext *core_ctx;
5195 unsigned int total_count;
5196 struct DuplicateStats *stats_list;
5197 struct DuplicateStats *pos;
5201 /* Allocate a single stats iteration context */
5202 stats_context = GNUNET_malloc (sizeof (struct StatsIterateContext));
5203 stats_context->cont = cont;
5204 stats_context->proc = proc;
5205 stats_context->cls = cls;
5206 stats_context->pg = pg;
5209 for (i = 0; i < pg->total; i++)
5211 if ((pg->peers[i].daemon->running == GNUNET_YES) &&
5212 (GNUNET_NO == stats_check_existing (pg, &pg->peers[i], &stats_list)))
5214 /* Allocate one core context per core we need to connect to */
5215 core_ctx = GNUNET_malloc (sizeof (struct StatsCoreContext));
5216 core_ctx->daemon = pg->peers[i].daemon;
5217 /* Set back pointer to topology iteration context */
5218 core_ctx->iter_context = stats_context;
5219 GNUNET_SCHEDULER_add_now (&schedule_get_statistics, core_ctx);
5224 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
5225 "Retrieving stats from %u total instances.\n", total_count);
5226 stats_context->total = total_count;
5227 if (stats_list != NULL)
5232 GNUNET_free (pos->unique_string);
5233 stats_list = pos->next;
5235 pos = stats_list->next;
5242 * Stop the connection process temporarily.
5244 * @param pg the peer group to stop connecting
5247 GNUNET_TESTING_stop_connections (struct GNUNET_TESTING_PeerGroup *pg)
5249 pg->stop_connects = GNUNET_YES;
5253 * Resume the connection process temporarily.
5255 * @param pg the peer group to resume connecting
5258 GNUNET_TESTING_resume_connections (struct GNUNET_TESTING_PeerGroup *pg)
5260 pg->stop_connects = GNUNET_NO;
5264 * There are many ways to connect peers that are supported by this function.
5265 * To connect peers in the same topology that was created via the
5266 * GNUNET_TESTING_create_topology, the topology variable must be set to
5267 * GNUNET_TESTING_TOPOLOGY_NONE. If the topology variable is specified,
5268 * a new instance of that topology will be generated and attempted to be
5269 * connected. This could result in some connections being impossible,
5270 * because some topologies are non-deterministic.
5272 * @param pg the peer group struct representing the running peers
5273 * @param topology which topology to connect the peers in
5274 * @param options options for connecting the topology
5275 * @param option_modifier modifier for options that take a parameter
5276 * @param connect_timeout how long to wait before giving up on connecting
5278 * @param connect_attempts how many times to attempt to connect two peers
5279 * over the connect_timeout duration
5280 * @param notify_callback notification to be called once all connections completed
5281 * @param notify_cls closure for notification callback
5283 * @return the number of connections that will be attempted, GNUNET_SYSERR on error
5286 GNUNET_TESTING_connect_topology (struct GNUNET_TESTING_PeerGroup *pg,
5287 enum GNUNET_TESTING_Topology topology,
5288 enum GNUNET_TESTING_TopologyOption options,
5289 double option_modifier,
5290 struct GNUNET_TIME_Relative connect_timeout,
5291 unsigned int connect_attempts,
5292 GNUNET_TESTING_NotifyCompletion
5293 notify_callback, void *notify_cls)
5297 case GNUNET_TESTING_TOPOLOGY_CLIQUE:
5298 #if VERBOSE_TOPOLOGY
5299 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
5300 _("Creating clique CONNECT topology\n"));
5302 create_clique (pg, &add_connections, CONNECT, GNUNET_NO);
5304 case GNUNET_TESTING_TOPOLOGY_SMALL_WORLD_RING:
5305 #if VERBOSE_TOPOLOGY
5306 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
5307 _("Creating small world (ring) CONNECT topology\n"));
5309 create_small_world_ring (pg, &add_connections, CONNECT);
5311 case GNUNET_TESTING_TOPOLOGY_SMALL_WORLD:
5312 #if VERBOSE_TOPOLOGY
5313 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
5314 _("Creating small world (2d-torus) CONNECT topology\n"));
5316 create_small_world (pg, &add_connections, CONNECT);
5318 case GNUNET_TESTING_TOPOLOGY_RING:
5319 #if VERBOSE_TOPOLOGY
5320 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, _("Creating ring CONNECT topology\n"));
5322 create_ring (pg, &add_connections, CONNECT);
5324 case GNUNET_TESTING_TOPOLOGY_2D_TORUS:
5325 #if VERBOSE_TOPOLOGY
5326 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
5327 _("Creating 2d torus CONNECT topology\n"));
5329 create_2d_torus (pg, &add_connections, CONNECT);
5331 case GNUNET_TESTING_TOPOLOGY_ERDOS_RENYI:
5332 #if VERBOSE_TOPOLOGY
5333 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
5334 _("Creating Erdos-Renyi CONNECT topology\n"));
5336 create_erdos_renyi (pg, &add_connections, CONNECT);
5338 case GNUNET_TESTING_TOPOLOGY_INTERNAT:
5339 #if VERBOSE_TOPOLOGY
5340 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
5341 _("Creating InterNAT CONNECT topology\n"));
5343 create_nated_internet (pg, &add_connections, CONNECT);
5345 case GNUNET_TESTING_TOPOLOGY_SCALE_FREE:
5346 #if VERBOSE_TOPOLOGY
5347 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
5348 _("Creating Scale Free CONNECT topology\n"));
5350 create_scale_free (pg, &add_connections, CONNECT);
5352 case GNUNET_TESTING_TOPOLOGY_LINE:
5353 #if VERBOSE_TOPOLOGY
5354 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
5355 _("Creating straight line CONNECT topology\n"));
5357 create_line (pg, &add_connections, CONNECT);
5359 case GNUNET_TESTING_TOPOLOGY_NONE:
5360 #if VERBOSE_TOPOLOGY
5361 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, _("Creating no CONNECT topology\n"));
5363 copy_allowed_topology (pg);
5366 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
5367 _("Unknown topology specification, can't connect peers!\n"));
5368 return GNUNET_SYSERR;
5373 case GNUNET_TESTING_TOPOLOGY_OPTION_RANDOM:
5374 #if VERBOSE_TOPOLOGY
5375 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
5377 ("Connecting random subset (%'.2f percent) of possible peers\n"),
5378 100 * option_modifier);
5380 choose_random_connections (pg, option_modifier);
5382 case GNUNET_TESTING_TOPOLOGY_OPTION_MINIMUM:
5383 #if VERBOSE_TOPOLOGY
5384 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
5385 _("Connecting a minimum of %u peers each (if possible)\n"),
5386 (unsigned int) option_modifier);
5388 choose_minimum (pg, (unsigned int) option_modifier);
5390 case GNUNET_TESTING_TOPOLOGY_OPTION_DFS:
5391 #if VERBOSE_TOPOLOGY
5392 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
5394 ("Using DFS to connect a minimum of %u peers each (if possible)\n"),
5395 (unsigned int) option_modifier);
5398 perform_dfs (pg, (int) option_modifier);
5401 case GNUNET_TESTING_TOPOLOGY_OPTION_ADD_CLOSEST:
5402 #if VERBOSE_TOPOLOGY
5403 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
5404 _("Finding additional %u closest peers each (if possible)\n"),
5405 (unsigned int) option_modifier);
5408 add_closest (pg, (unsigned int) option_modifier, &add_connections, CONNECT);
5411 case GNUNET_TESTING_TOPOLOGY_OPTION_NONE:
5413 case GNUNET_TESTING_TOPOLOGY_OPTION_ALL:
5419 return connect_topology (pg, connect_timeout, connect_attempts,
5420 notify_callback, notify_cls);
5424 * Lookup and return the number of SSH connections to a host.
5426 * @param hostname the hostname to lookup in the list
5427 * @param pg the peergroup that the host belongs to
5429 * @return the number of current ssh connections to the host
5432 count_outstanding_at_host (const char *hostname,
5433 struct GNUNET_TESTING_PeerGroup *pg)
5435 struct OutstandingSSH *pos;
5438 while ((pos != NULL) && (strcmp (pos->hostname, hostname) != 0))
5440 GNUNET_assert (pos != NULL);
5441 return pos->outstanding;
5445 * Increment the number of SSH connections to a host by one.
5447 * @param hostname the hostname to lookup in the list
5448 * @param pg the peergroup that the host belongs to
5452 increment_outstanding_at_host (const char *hostname,
5453 struct GNUNET_TESTING_PeerGroup *pg)
5455 struct OutstandingSSH *pos;
5458 while ((pos != NULL) && (strcmp (pos->hostname, hostname) != 0))
5460 GNUNET_assert (pos != NULL);
5465 * Decrement the number of SSH connections to a host by one.
5467 * @param hostname the hostname to lookup in the list
5468 * @param pg the peergroup that the host belongs to
5472 decrement_outstanding_at_host (const char *hostname,
5473 struct GNUNET_TESTING_PeerGroup *pg)
5475 struct OutstandingSSH *pos;
5478 while ((pos != NULL) && (strcmp (pos->hostname, hostname) != 0))
5480 GNUNET_assert (pos != NULL);
5485 * Callback that is called whenever a hostkey is generated
5486 * for a peer. Call the real callback and decrement the
5487 * starting counter for the peergroup.
5489 * @param cls closure
5490 * @param id identifier for the daemon, NULL on error
5491 * @param d handle for the daemon
5492 * @param emsg error message (NULL on success)
5495 internal_hostkey_callback (void *cls, const struct GNUNET_PeerIdentity *id,
5496 struct GNUNET_TESTING_Daemon *d, const char *emsg)
5498 struct InternalStartContext *internal_context = cls;
5500 internal_context->peer->pg->starting--;
5501 internal_context->peer->pg->started++;
5502 if (internal_context->hostname != NULL)
5503 decrement_outstanding_at_host (internal_context->hostname,
5504 internal_context->peer->pg);
5505 if (internal_context->hostkey_callback != NULL)
5506 internal_context->hostkey_callback (internal_context->hostkey_cls, id, d,
5508 else if (internal_context->peer->pg->started ==
5509 internal_context->peer->pg->total)
5511 internal_context->peer->pg->started = 0; /* Internal startup may use this counter! */
5512 GNUNET_TESTING_daemons_continue_startup (internal_context->peer->pg);
5517 * Callback that is called whenever a peer has finished starting.
5518 * Call the real callback and decrement the starting counter
5519 * for the peergroup.
5521 * @param cls closure
5522 * @param id identifier for the daemon, NULL on error
5524 * @param d handle for the daemon
5525 * @param emsg error message (NULL on success)
5528 internal_startup_callback (void *cls, const struct GNUNET_PeerIdentity *id,
5529 const struct GNUNET_CONFIGURATION_Handle *cfg,
5530 struct GNUNET_TESTING_Daemon *d, const char *emsg)
5532 struct InternalStartContext *internal_context = cls;
5534 internal_context->peer->pg->starting--;
5535 if (internal_context->hostname != NULL)
5536 decrement_outstanding_at_host (internal_context->hostname,
5537 internal_context->peer->pg);
5538 if (internal_context->start_cb != NULL)
5539 internal_context->start_cb (internal_context->start_cb_cls, id, cfg, d,
5544 internal_continue_startup (void *cls,
5545 const struct GNUNET_SCHEDULER_TaskContext *tc)
5547 struct InternalStartContext *internal_context = cls;
5549 if ((tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN) != 0)
5554 if ((internal_context->peer->pg->starting <
5555 internal_context->peer->pg->max_concurrent_ssh) ||
5556 ((internal_context->hostname != NULL) &&
5557 (count_outstanding_at_host
5558 (internal_context->hostname,
5559 internal_context->peer->pg) <
5560 internal_context->peer->pg->max_concurrent_ssh)))
5562 if (internal_context->hostname != NULL)
5563 increment_outstanding_at_host (internal_context->hostname,
5564 internal_context->peer->pg);
5565 internal_context->peer->pg->starting++;
5566 GNUNET_TESTING_daemon_continue_startup (internal_context->peer->daemon);
5570 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply
5571 (GNUNET_TIME_UNIT_MILLISECONDS, 100),
5572 &internal_continue_startup, internal_context);
5577 * Callback for informing us about a successful
5578 * or unsuccessful churn start call.
5580 * @param cls a ChurnContext
5581 * @param id the peer identity of the started peer
5582 * @param cfg the handle to the configuration of the peer
5583 * @param d handle to the daemon for the peer
5584 * @param emsg NULL on success, non-NULL on failure
5588 churn_start_callback (void *cls, const struct GNUNET_PeerIdentity *id,
5589 const struct GNUNET_CONFIGURATION_Handle *cfg,
5590 struct GNUNET_TESTING_Daemon *d, const char *emsg)
5592 struct ChurnRestartContext *startup_ctx = cls;
5593 struct ChurnContext *churn_ctx = startup_ctx->churn_ctx;
5595 unsigned int total_left;
5596 char *error_message;
5598 error_message = NULL;
5601 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
5602 "Churn stop callback failed with error `%s'\n", emsg);
5603 churn_ctx->num_failed_start++;
5607 churn_ctx->num_to_start--;
5611 (churn_ctx->num_to_stop - churn_ctx->num_failed_stop) +
5612 (churn_ctx->num_to_start - churn_ctx->num_failed_start);
5614 if (total_left == 0)
5616 if ((churn_ctx->num_failed_stop > 0) || (churn_ctx->num_failed_start > 0))
5617 GNUNET_asprintf (&error_message,
5618 "Churn didn't complete successfully, %u peers failed to start %u peers failed to be stopped!",
5619 churn_ctx->num_failed_start, churn_ctx->num_failed_stop);
5620 churn_ctx->cb (churn_ctx->cb_cls, error_message);
5621 GNUNET_free_non_null (error_message);
5622 GNUNET_free (churn_ctx);
5623 GNUNET_free (startup_ctx);
5628 schedule_churn_restart (void *cls,
5629 const struct GNUNET_SCHEDULER_TaskContext *tc)
5631 struct PeerRestartContext *peer_restart_ctx = cls;
5632 struct ChurnRestartContext *startup_ctx = peer_restart_ctx->churn_restart_ctx;
5634 if (startup_ctx->outstanding > startup_ctx->pg->max_concurrent_ssh)
5635 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply
5636 (GNUNET_TIME_UNIT_MILLISECONDS, 100),
5637 &schedule_churn_restart, peer_restart_ctx);
5640 if (startup_ctx->churn_ctx->service != NULL)
5641 GNUNET_TESTING_daemon_start_stopped_service (peer_restart_ctx->daemon,
5644 startup_ctx->timeout,
5645 &churn_start_callback,
5648 GNUNET_TESTING_daemon_start_stopped (peer_restart_ctx->daemon,
5649 startup_ctx->timeout,
5650 &churn_start_callback, startup_ctx);
5651 GNUNET_free (peer_restart_ctx);
5656 * Callback for informing us about a successful
5657 * or unsuccessful churn start call.
5659 * @param cls a struct ServiceStartContext *startup_ctx
5660 * @param id the peer identity of the started peer
5661 * @param cfg the handle to the configuration of the peer
5662 * @param d handle to the daemon for the peer
5663 * @param emsg NULL on success, non-NULL on failure
5667 service_start_callback (void *cls, const struct GNUNET_PeerIdentity *id,
5668 const struct GNUNET_CONFIGURATION_Handle *cfg,
5669 struct GNUNET_TESTING_Daemon *d, const char *emsg)
5671 struct ServiceStartContext *startup_ctx = (struct ServiceStartContext *) cls;
5675 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
5676 "Service start failed with error `%s'\n", emsg);
5679 startup_ctx->outstanding--;
5680 startup_ctx->remaining--;
5682 if (startup_ctx->remaining == 0)
5684 startup_ctx->cb (startup_ctx->cb_cls, NULL);
5685 GNUNET_free (startup_ctx->service);
5686 GNUNET_free (startup_ctx);
5691 schedule_service_start (void *cls,
5692 const struct GNUNET_SCHEDULER_TaskContext *tc)
5694 struct PeerServiceStartContext *peer_ctx = cls;
5695 struct ServiceStartContext *startup_ctx = peer_ctx->start_ctx;
5697 if (startup_ctx->outstanding > startup_ctx->pg->max_concurrent_ssh)
5698 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply
5699 (GNUNET_TIME_UNIT_MILLISECONDS, 100),
5700 &schedule_service_start, peer_ctx);
5704 GNUNET_TESTING_daemon_start_service (peer_ctx->daemon, startup_ctx->service,
5705 startup_ctx->timeout,
5706 &service_start_callback, startup_ctx);
5707 GNUNET_free (peer_ctx);
5713 internal_start (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
5715 struct InternalStartContext *internal_context = cls;
5717 if ((tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN) != 0)
5722 if ((internal_context->peer->pg->starting <
5723 internal_context->peer->pg->max_concurrent_ssh) ||
5724 ((internal_context->hostname != NULL) &&
5725 (count_outstanding_at_host
5726 (internal_context->hostname,
5727 internal_context->peer->pg) <
5728 internal_context->peer->pg->max_concurrent_ssh)))
5730 if (internal_context->hostname != NULL)
5731 increment_outstanding_at_host (internal_context->hostname,
5732 internal_context->peer->pg);
5733 internal_context->peer->pg->starting++;
5734 internal_context->peer->daemon =
5735 GNUNET_TESTING_daemon_start (internal_context->peer->cfg,
5736 internal_context->timeout, GNUNET_NO,
5737 internal_context->hostname,
5738 internal_context->username,
5739 internal_context->sshport,
5740 internal_context->hostkey,
5741 &internal_hostkey_callback,
5743 &internal_startup_callback,
5748 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply
5749 (GNUNET_TIME_UNIT_MILLISECONDS, 100),
5750 &internal_start, internal_context);
5754 #if USE_START_HELPER
5756 struct PeerStartHelperContext
5758 struct GNUNET_TESTING_PeerGroup *pg;
5760 struct HostData *host;
5762 struct GNUNET_OS_Process *proc;
5766 check_peers_started (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
5768 struct PeerStartHelperContext *helper = cls;
5769 enum GNUNET_OS_ProcessStatusType type;
5772 GNUNET_TESTING_NotifyDaemonRunning cb;
5774 if (GNUNET_NO == GNUNET_OS_process_status (helper->proc, &type, &code)) /* Still running, wait some more! */
5776 GNUNET_SCHEDULER_add_delayed (GNUNET_CONSTANTS_EXEC_WAIT,
5777 &check_peers_started, helper);
5781 helper->pg->starting--;
5782 if (helper->pg->starting == 0) /* All peers have finished starting! */
5784 /* Call the peer started callback for each peer, set proper FSM state (?) */
5785 for (i = 0; i < helper->pg->total; i++)
5787 cb = helper->pg->peers[i].daemon->cb;
5788 helper->pg->peers[i].daemon->cb = NULL;
5789 helper->pg->peers[i].daemon->running = GNUNET_YES;
5790 helper->pg->peers[i].daemon->phase = SP_START_DONE;
5793 if ((type != GNUNET_OS_PROCESS_EXITED) || (code != 0))
5794 cb (helper->pg->peers[i].daemon->cb_cls,
5795 &helper->pg->peers[i].daemon->id,
5796 helper->pg->peers[i].daemon->cfg, helper->pg->peers[i].daemon,
5797 "Failed to execute peerStartHelper.pl, or return code bad!");
5799 cb (helper->pg->peers[i].daemon->cb_cls,
5800 &helper->pg->peers[i].daemon->id,
5801 helper->pg->peers[i].daemon->cfg, helper->pg->peers[i].daemon,
5808 GNUNET_OS_process_close (helper->proc);
5812 start_peer_helper (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
5814 struct PeerStartHelperContext *helper = cls;
5815 char *baseservicehome;
5819 /* ssh user@host peerStartHelper /path/to/basedirectory */
5820 GNUNET_assert (GNUNET_OK ==
5821 GNUNET_CONFIGURATION_get_value_string (helper->pg->cfg,
5822 "PATHS", "SERVICEHOME",
5824 GNUNET_asprintf (&tempdir, "%s/%s/", baseservicehome, helper->host->hostname);
5825 if (NULL != helper->host->username)
5826 GNUNET_asprintf (&arg, "%s@%s", helper->host->username,
5827 helper->host->hostname);
5829 GNUNET_asprintf (&arg, "%s", helper->host->hostname);
5831 /* FIXME: Doesn't support ssh_port option! */
5833 GNUNET_OS_start_process (NULL, NULL, "ssh", "ssh", arg,
5834 "peerStartHelper.pl", tempdir, NULL);
5835 GNUNET_assert (helper->proc != NULL);
5837 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
5838 "starting peers with cmd ssh %s %s %s\n", arg,
5839 "peerStartHelper.pl", tempdir);
5841 GNUNET_SCHEDULER_add_now (&check_peers_started, helper);
5842 GNUNET_free (tempdir);
5843 GNUNET_free (baseservicehome);
5849 * Function which continues a peer group starting up
5850 * after successfully generating hostkeys for each peer.
5852 * @param pg the peer group to continue starting
5856 GNUNET_TESTING_daemons_continue_startup (struct GNUNET_TESTING_PeerGroup *pg)
5860 #if USE_START_HELPER
5861 if ((pg->num_hosts > 0) && (pg->hostkey_data != NULL))
5863 struct PeerStartHelperContext *helper;
5865 pg->starting = pg->num_hosts;
5866 for (i = 0; i < pg->num_hosts; i++)
5868 helper = GNUNET_malloc (sizeof (struct PeerStartHelperContext));
5870 helper->host = &pg->hosts[i];
5871 GNUNET_SCHEDULER_add_now (&start_peer_helper, helper);
5877 for (i = 0; i < pg->total; i++)
5879 GNUNET_SCHEDULER_add_now (&internal_continue_startup,
5880 &pg->peers[i].internal_context);
5885 for (i = 0; i < pg->total; i++)
5887 GNUNET_SCHEDULER_add_now (&internal_continue_startup,
5888 &pg->peers[i].internal_context);
5893 #if USE_START_HELPER
5895 call_hostkey_callbacks (void *cls,
5896 const struct GNUNET_SCHEDULER_TaskContext *tc)
5898 struct GNUNET_TESTING_PeerGroup *pg = cls;
5901 for (i = 0; i < pg->total; i++)
5903 if (pg->peers[i].internal_context.hostkey_callback != NULL)
5904 pg->peers[i].internal_context.hostkey_callback (pg->peers[i].
5905 internal_context.hostkey_cls,
5906 &pg->peers[i].daemon->id,
5907 pg->peers[i].daemon,
5911 if (pg->peers[0].internal_context.hostkey_callback == NULL)
5912 GNUNET_TESTING_daemons_continue_startup (pg);
5917 * Start count gnunet instances with the same set of transports and
5918 * applications. The port numbers (any option called "PORT") will be
5919 * adjusted to ensure that no two peers running on the same system
5920 * have the same port(s) in their respective configurations.
5922 * @param cfg configuration template to use
5923 * @param total number of daemons to start
5924 * @param max_concurrent_connections for testing, how many peers can
5925 * we connect to simultaneously
5926 * @param max_concurrent_ssh when starting with ssh, how many ssh
5927 * connections will we allow at once (based on remote hosts allowed!)
5928 * @param timeout total time allowed for peers to start
5929 * @param hostkey_callback function to call on each peers hostkey generation
5930 * if NULL, peers will be started by this call, if non-null,
5931 * GNUNET_TESTING_daemons_continue_startup must be called after
5932 * successful hostkey generation
5933 * @param hostkey_cls closure for hostkey callback
5934 * @param cb function to call on each daemon that was started
5935 * @param cb_cls closure for cb
5936 * @param connect_callback function to call each time two hosts are connected
5937 * @param connect_callback_cls closure for connect_callback
5938 * @param hostnames linked list of host structs to use to start peers on
5939 * (NULL to run on localhost only)
5941 * @return NULL on error, otherwise handle to control peer group
5943 struct GNUNET_TESTING_PeerGroup *
5944 GNUNET_TESTING_daemons_start (const struct GNUNET_CONFIGURATION_Handle *cfg,
5946 unsigned int max_concurrent_connections,
5947 unsigned int max_concurrent_ssh,
5948 struct GNUNET_TIME_Relative timeout,
5949 GNUNET_TESTING_NotifyHostkeyCreated
5950 hostkey_callback, void *hostkey_cls,
5951 GNUNET_TESTING_NotifyDaemonRunning cb,
5953 GNUNET_TESTING_NotifyConnection connect_callback,
5954 void *connect_callback_cls,
5955 const struct GNUNET_TESTING_Host *hostnames)
5957 struct GNUNET_TESTING_PeerGroup *pg;
5958 const struct GNUNET_TESTING_Host *hostpos;
5959 const char *hostname;
5960 const char *username;
5961 char *baseservicehome;
5962 char *newservicehome;
5964 char *hostkeys_file;
5967 struct GNUNET_DISK_FileHandle *fd;
5968 struct GNUNET_CONFIGURATION_Handle *pcfg;
5970 struct OutstandingSSH *ssh_entry;
5971 unsigned int hostcnt;
5978 uint64_t total_hostkeys;
5979 struct GNUNET_OS_Process *proc;
5990 pg = GNUNET_malloc (sizeof (struct GNUNET_TESTING_PeerGroup));
5992 pg->notify_connection = connect_callback;
5993 pg->notify_connection_cls = connect_callback_cls;
5995 pg->max_timeout = GNUNET_TIME_relative_to_absolute (timeout);
5996 pg->peers = GNUNET_malloc (total * sizeof (struct PeerData));
5997 pg->max_outstanding_connections = max_concurrent_connections;
5998 pg->max_concurrent_ssh = max_concurrent_ssh;
5999 if (NULL != hostnames)
6002 hostpos = hostnames;
6003 while (hostpos != NULL)
6005 hostpos = hostpos->next;
6008 pg->hosts = GNUNET_malloc (off * sizeof (struct HostData));
6011 hostpos = hostnames;
6012 while (hostpos != NULL)
6014 pg->hosts[off].minport = LOW_PORT;
6015 pg->hosts[off].hostname = GNUNET_strdup (hostpos->hostname);
6016 if (hostpos->username != NULL)
6017 pg->hosts[off].username = GNUNET_strdup (hostpos->username);
6018 pg->hosts[off].sshport = hostpos->port;
6019 hostpos = hostpos->next;
6029 pg->num_hosts = off;
6037 /* Create the servicehome directory for each remote peer */
6038 GNUNET_assert (GNUNET_OK ==
6039 GNUNET_CONFIGURATION_get_value_string (cfg, "PATHS",
6042 for (i = 0; i < pg->num_hosts; i++)
6044 ssh_entry = GNUNET_malloc (sizeof (struct OutstandingSSH));
6045 ssh_entry->hostname = pg->hosts[i].hostname; /* Don't free! */
6046 GNUNET_CONTAINER_DLL_insert (pg->ssh_head, pg->ssh_tail, ssh_entry);
6047 GNUNET_asprintf (&tmpdir, "%s/%s", baseservicehome, pg->hosts[i].hostname);
6048 if (NULL != pg->hosts[i].username)
6049 GNUNET_asprintf (&arg, "%s@%s", pg->hosts[i].username,
6050 pg->hosts[i].hostname);
6052 GNUNET_asprintf (&arg, "%s", pg->hosts[i].hostname);
6053 if (pg->hosts[i].sshport != 0)
6055 GNUNET_asprintf (&ssh_port_str, "%d", pg->hosts[i].sshport);
6057 GNUNET_OS_start_process (NULL, NULL, "ssh", "ssh", "-P", ssh_port_str,
6061 arg, "mkdir -p", tmpdir, NULL);
6065 GNUNET_OS_start_process (NULL, NULL, "ssh", "ssh", arg, "mkdir -p",
6067 GNUNET_assert (proc != NULL);
6068 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
6069 "Creating remote dir with command ssh %s %s %s\n", arg,
6070 " mkdir -p ", tmpdir);
6071 GNUNET_free (tmpdir);
6073 GNUNET_OS_process_wait (proc);
6074 GNUNET_OS_process_close (proc);
6076 GNUNET_free (baseservicehome);
6077 baseservicehome = NULL;
6080 GNUNET_CONFIGURATION_get_value_string (cfg, "TESTING", "HOSTKEYSFILE",
6083 if (GNUNET_YES != GNUNET_DISK_file_test (hostkeys_file))
6084 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
6085 _("Could not read hostkeys file!\n"));
6088 /* Check hostkey file size, read entire thing into memory */
6089 fd = GNUNET_DISK_file_open (hostkeys_file, GNUNET_DISK_OPEN_READ,
6090 GNUNET_DISK_PERM_NONE);
6093 GNUNET_log_strerror_file (GNUNET_ERROR_TYPE_ERROR, "open",
6095 GNUNET_free (hostkeys_file);
6096 for (i = 0; i < pg->num_hosts; i++)
6098 GNUNET_free (pg->hosts[i].hostname);
6099 GNUNET_free_non_null (pg->hosts[i].username);
6101 GNUNET_free (pg->peers);
6102 GNUNET_free (pg->hosts);
6107 if (GNUNET_YES != GNUNET_DISK_file_size (hostkeys_file, &fs, GNUNET_YES))
6110 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
6111 "Found file size %llu for hostkeys\n",
6114 if (0 != (fs % HOSTKEYFILESIZE))
6116 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
6117 "File size %llu seems incorrect for hostkeys...\n", fs);
6121 total_hostkeys = fs / HOSTKEYFILESIZE;
6122 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
6123 "Will read %llu hostkeys from file\n", total_hostkeys);
6124 pg->hostkey_data = GNUNET_malloc_large (fs);
6125 GNUNET_assert (fs == GNUNET_DISK_file_read (fd, pg->hostkey_data, fs));
6127 GNUNET_assert (GNUNET_OK == GNUNET_DISK_file_close (fd));
6129 GNUNET_free (hostkeys_file);
6132 for (off = 0; off < total; off++)
6136 hostname = pg->hosts[off % hostcnt].hostname;
6137 username = pg->hosts[off % hostcnt].username;
6138 sshport = pg->hosts[off % hostcnt].sshport;
6140 make_config (cfg, off, &pg->hosts[off % hostcnt].minport, &upnum,
6148 pcfg = make_config (cfg, off, &minport, &upnum, hostname, &fdnum);
6153 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
6155 ("Could not create configuration for peer number %u on `%s'!\n"),
6156 off, hostname == NULL ? "localhost" : hostname);
6161 GNUNET_CONFIGURATION_get_value_string (pcfg, "PATHS", "SERVICEHOME",
6164 if (hostname != NULL)
6165 GNUNET_asprintf (&newservicehome, "%s/%s/%d/", baseservicehome,
6168 GNUNET_asprintf (&newservicehome, "%s/%d/", baseservicehome, off);
6169 GNUNET_free (baseservicehome);
6170 baseservicehome = NULL;
6174 tmpdir = getenv ("TMPDIR");
6175 tmpdir = tmpdir ? tmpdir : "/tmp";
6176 if (hostname != NULL)
6177 GNUNET_asprintf (&newservicehome, "%s/%s/%s/%d/", tmpdir, hostname,
6178 "gnunet-testing-test-test", off);
6180 GNUNET_asprintf (&newservicehome, "%s/%s/%d/", tmpdir,
6181 "gnunet-testing-test-test", off);
6183 GNUNET_CONFIGURATION_set_value_string (pcfg, "PATHS", "SERVICEHOME",
6185 GNUNET_free (newservicehome);
6186 pg->peers[off].cfg = pcfg;
6187 pg->peers[off].pg = pg;
6188 pg->peers[off].internal_context.peer = &pg->peers[off];
6189 pg->peers[off].internal_context.timeout = timeout;
6190 pg->peers[off].internal_context.hostname = hostname;
6191 pg->peers[off].internal_context.username = username;
6192 pg->peers[off].internal_context.sshport = sshport;
6193 if (pg->hostkey_data != NULL)
6194 pg->peers[off].internal_context.hostkey =
6195 &pg->hostkey_data[off * HOSTKEYFILESIZE];
6196 pg->peers[off].internal_context.hostkey_callback = hostkey_callback;
6197 pg->peers[off].internal_context.hostkey_cls = hostkey_cls;
6198 pg->peers[off].internal_context.start_cb = cb;
6199 pg->peers[off].internal_context.start_cb_cls = cb_cls;
6200 #if !USE_START_HELPER
6201 GNUNET_SCHEDULER_add_now (&internal_start,
6202 &pg->peers[off].internal_context);
6204 if ((pg->hostkey_data != NULL) && (hostcnt > 0))
6206 pg->peers[off].daemon =
6207 GNUNET_TESTING_daemon_start (pcfg, timeout, GNUNET_YES, hostname,
6209 pg->peers[off].internal_context.hostkey,
6210 &internal_hostkey_callback,
6211 &pg->peers[off].internal_context,
6212 &internal_startup_callback,
6213 &pg->peers[off].internal_context);
6215 * At this point, given that we had a hostkeyfile,
6216 * we can call the hostkey callback!
6217 * But first, we should copy (rsync) all of the configs
6218 * and hostkeys to the remote peers. Then let topology
6219 * creation happen, then call the peer start helper processes,
6220 * then set pg->whatever_phase for each peer and let them
6221 * enter the fsm to get the HELLO's for peers and start connecting.
6226 GNUNET_SCHEDULER_add_now (&internal_start,
6227 &pg->peers[off].internal_context);
6233 #if USE_START_HELPER /* Now the peergroup has been set up, hostkeys and configs written to files. */
6234 if ((pg->hostkey_data != NULL) && (hostcnt > 0))
6236 for (off = 0; off < hostcnt; off++)
6241 hostname = pg->hosts[off % hostcnt].hostname;
6242 username = pg->hosts[off % hostcnt].username;
6243 sshport = pg->hosts[off % hostcnt].sshport;
6253 GNUNET_CONFIGURATION_get_value_string (cfg, "PATHS", "SERVICEHOME",
6257 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "baseservice home is %s\n",
6260 if (hostname != NULL)
6261 GNUNET_asprintf (&newservicehome, "%s/%s/", baseservicehome,
6264 GNUNET_asprintf (&newservicehome, "%s/", baseservicehome);
6265 GNUNET_free (baseservicehome);
6266 baseservicehome = NULL;
6270 tmpdir = getenv ("TMPDIR");
6271 tmpdir = tmpdir ? tmpdir : "/tmp";
6272 if (hostname != NULL)
6273 GNUNET_asprintf (&newservicehome, "%s/%s/%s/", tmpdir, hostname,
6274 "gnunet-testing-test-test");
6276 GNUNET_asprintf (&newservicehome, "%s/%s/", tmpdir,
6277 "gnunet-testing-test-test", off);
6280 if (NULL != username)
6281 GNUNET_asprintf (&arg, "%s@%s:%s", username, pg->hosts[off].hostname,
6284 GNUNET_asprintf (&arg, "%s:%s", pg->hosts[off].hostname,
6287 /* FIXME: Doesn't support ssh_port option! */
6289 GNUNET_OS_start_process (NULL, NULL, "rsync", "rsync", "-r",
6290 newservicehome, arg, NULL);
6292 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
6293 "copying directory with command rsync -r %s %s\n",
6294 newservicehome, arg);
6296 GNUNET_free (newservicehome);
6300 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
6302 ("Could not start `%s' process to copy configuration directory.\n"),
6306 GNUNET_OS_process_wait (proc);
6307 GNUNET_OS_process_close (proc);
6309 /* Now all the configuration files and hostkeys are copied to the remote host. Call the hostkey callback for each peer! */
6310 GNUNET_SCHEDULER_add_now (&call_hostkey_callbacks, pg);
6317 * Get a daemon by number, so callers don't have to do nasty
6318 * offsetting operation.
6320 struct GNUNET_TESTING_Daemon *
6321 GNUNET_TESTING_daemon_get (struct GNUNET_TESTING_PeerGroup *pg,
6322 unsigned int position)
6324 if (position < pg->total)
6325 return pg->peers[position].daemon;
6330 * Get a daemon by peer identity, so callers can
6331 * retrieve the daemon without knowing it's offset.
6333 * @param pg the peer group to retrieve the daemon from
6334 * @param peer_id the peer identity of the daemon to retrieve
6336 * @return the daemon on success, or NULL if no such peer identity is found
6338 struct GNUNET_TESTING_Daemon *
6339 GNUNET_TESTING_daemon_get_by_id (struct GNUNET_TESTING_PeerGroup *pg,
6340 const struct GNUNET_PeerIdentity *peer_id)
6344 for (i = 0; i < pg->total; i++)
6347 memcmp (&pg->peers[i].daemon->id, peer_id,
6348 sizeof (struct GNUNET_PeerIdentity)))
6349 return pg->peers[i].daemon;
6355 * Prototype of a function that will be called when a
6356 * particular operation was completed the testing library.
6358 * @param cls closure (a struct RestartContext)
6359 * @param id id of the peer that was restarted
6360 * @param cfg handle to the configuration of the peer
6361 * @param d handle to the daemon that was restarted
6362 * @param emsg NULL on success
6365 restart_callback (void *cls, const struct GNUNET_PeerIdentity *id,
6366 const struct GNUNET_CONFIGURATION_Handle *cfg,
6367 struct GNUNET_TESTING_Daemon *d, const char *emsg)
6369 struct RestartContext *restart_context = cls;
6373 restart_context->peers_restarted++;
6377 restart_context->peers_restart_failed++;
6380 if (restart_context->peers_restarted == restart_context->peer_group->total)
6382 restart_context->callback (restart_context->callback_cls, NULL);
6383 GNUNET_free (restart_context);
6385 else if (restart_context->peers_restart_failed +
6386 restart_context->peers_restarted ==
6387 restart_context->peer_group->total)
6389 restart_context->callback (restart_context->callback_cls,
6390 "Failed to restart peers!");
6391 GNUNET_free (restart_context);
6397 * Callback for informing us about a successful
6398 * or unsuccessful churn stop call.
6400 * @param cls a ChurnContext
6401 * @param emsg NULL on success, non-NULL on failure
6405 churn_stop_callback (void *cls, const char *emsg)
6407 struct ShutdownContext *shutdown_ctx = cls;
6408 struct ChurnContext *churn_ctx = shutdown_ctx->cb_cls;
6409 unsigned int total_left;
6410 char *error_message;
6412 error_message = NULL;
6413 shutdown_ctx->outstanding--;
6417 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
6418 "Churn stop callback failed with error `%s'\n", emsg);
6419 churn_ctx->num_failed_stop++;
6423 churn_ctx->num_to_stop--;
6427 (churn_ctx->num_to_stop - churn_ctx->num_failed_stop) +
6428 (churn_ctx->num_to_start - churn_ctx->num_failed_start);
6430 if (total_left == 0)
6432 if ((churn_ctx->num_failed_stop > 0) || (churn_ctx->num_failed_start > 0))
6434 GNUNET_asprintf (&error_message,
6435 "Churn didn't complete successfully, %u peers failed to start %u peers failed to be stopped!",
6436 churn_ctx->num_failed_start, churn_ctx->num_failed_stop);
6438 churn_ctx->cb (churn_ctx->cb_cls, error_message);
6439 GNUNET_free_non_null (error_message);
6440 GNUNET_free (churn_ctx);
6441 GNUNET_free (shutdown_ctx);
6446 * Count the number of running peers.
6448 * @param pg handle for the peer group
6450 * @return the number of currently running peers in the peer group
6453 GNUNET_TESTING_daemons_running (struct GNUNET_TESTING_PeerGroup *pg)
6456 unsigned int running = 0;
6458 for (i = 0; i < pg->total; i++)
6460 if (pg->peers[i].daemon->running == GNUNET_YES)
6462 GNUNET_assert (running != -1);
6470 * Task to rate limit the number of outstanding peer shutdown
6471 * requests. This is necessary for making sure we don't do
6472 * too many ssh connections at once, but is generally nicer
6473 * to any system as well (graduated task starts, as opposed
6474 * to calling gnunet-arm N times all at once).
6477 schedule_churn_shutdown_task (void *cls,
6478 const struct GNUNET_SCHEDULER_TaskContext *tc)
6480 struct PeerShutdownContext *peer_shutdown_ctx = cls;
6481 struct ShutdownContext *shutdown_ctx;
6482 struct ChurnContext *churn_ctx;
6484 GNUNET_assert (peer_shutdown_ctx != NULL);
6485 shutdown_ctx = peer_shutdown_ctx->shutdown_ctx;
6486 GNUNET_assert (shutdown_ctx != NULL);
6487 churn_ctx = (struct ChurnContext *) shutdown_ctx->cb_cls;
6488 if (shutdown_ctx->outstanding > churn_ctx->pg->max_concurrent_ssh)
6489 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply
6490 (GNUNET_TIME_UNIT_MILLISECONDS, 100),
6491 &schedule_churn_shutdown_task,
6495 shutdown_ctx->outstanding++;
6496 if (churn_ctx->service != NULL)
6497 GNUNET_TESTING_daemon_stop_service (peer_shutdown_ctx->daemon,
6499 shutdown_ctx->timeout,
6500 shutdown_ctx->cb, shutdown_ctx);
6502 GNUNET_TESTING_daemon_stop (peer_shutdown_ctx->daemon,
6503 shutdown_ctx->timeout, shutdown_ctx->cb,
6504 shutdown_ctx, GNUNET_NO, GNUNET_YES);
6505 GNUNET_free (peer_shutdown_ctx);
6511 * Simulate churn by stopping some peers (and possibly
6512 * re-starting others if churn is called multiple times). This
6513 * function can only be used to create leave-join churn (peers "never"
6514 * leave for good). First "voff" random peers that are currently
6515 * online will be taken offline; then "von" random peers that are then
6516 * offline will be put back online. No notifications will be
6517 * generated for any of these operations except for the callback upon
6520 * @param pg handle for the peer group
6521 * @param service the service to churn off/on, NULL to churn peer
6522 * @param voff number of peers that should go offline
6523 * @param von number of peers that should come back online;
6524 * must be zero on first call (since "testbed_start"
6525 * always starts all of the peers)
6526 * @param timeout how long to wait for operations to finish before
6528 * @param cb function to call at the end
6529 * @param cb_cls closure for cb
6532 GNUNET_TESTING_daemons_churn (struct GNUNET_TESTING_PeerGroup *pg,
6533 char *service, unsigned int voff,
6535 struct GNUNET_TIME_Relative timeout,
6536 GNUNET_TESTING_NotifyCompletion cb, void *cb_cls)
6538 struct ChurnContext *churn_ctx;
6539 struct ShutdownContext *shutdown_ctx;
6540 struct PeerShutdownContext *peer_shutdown_ctx;
6541 struct PeerRestartContext *peer_restart_ctx;
6542 struct ChurnRestartContext *churn_startup_ctx;
6544 unsigned int running;
6545 unsigned int stopped;
6546 unsigned int total_running;
6547 unsigned int total_stopped;
6549 unsigned int *running_arr;
6550 unsigned int *stopped_arr;
6551 unsigned int *running_permute;
6552 unsigned int *stopped_permute;
6555 shutdown_ctx = NULL;
6556 peer_shutdown_ctx = NULL;
6557 peer_restart_ctx = NULL;
6558 churn_startup_ctx = NULL;
6563 if ((von == 0) && (voff == 0)) /* No peers at all? */
6569 for (i = 0; i < pg->total; i++)
6571 if (service == NULL)
6573 if (pg->peers[i].daemon->running == GNUNET_YES)
6575 GNUNET_assert (running != -1);
6580 GNUNET_assert (stopped != -1);
6586 /* FIXME: make churned services a list! */
6587 pos = pg->peers[i].daemon->churned_services;
6588 /* FIXME: while (pos != NULL) */
6592 if (0 == strcasecmp (pos, service))
6598 GNUNET_assert (stopped != -1);
6600 /* FIXME: pos = pos->next; */
6604 GNUNET_assert (running != -1);
6612 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
6613 "Trying to stop more peers (%d) than are currently running (%d)!\n",
6615 cb (cb_cls, "Trying to stop more peers than are currently running!");
6621 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
6622 "Trying to start more peers (%d) than are currently stopped (%d)!\n",
6624 cb (cb_cls, "Trying to start more peers than are currently stopped!");
6628 churn_ctx = GNUNET_malloc (sizeof (struct ChurnContext));
6630 if (service != NULL)
6631 churn_ctx->service = GNUNET_strdup (service);
6634 running_arr = GNUNET_malloc (running * sizeof (unsigned int));
6638 stopped_arr = GNUNET_malloc (stopped * sizeof (unsigned int));
6640 running_permute = NULL;
6641 stopped_permute = NULL;
6645 GNUNET_CRYPTO_random_permute (GNUNET_CRYPTO_QUALITY_WEAK, running);
6648 GNUNET_CRYPTO_random_permute (GNUNET_CRYPTO_QUALITY_WEAK, stopped);
6650 total_running = running;
6651 total_stopped = stopped;
6655 churn_ctx->num_to_start = von;
6656 churn_ctx->num_to_stop = voff;
6658 churn_ctx->cb_cls = cb_cls;
6661 for (i = 0; i < pg->total; i++)
6663 if (service == NULL)
6665 if (pg->peers[i].daemon->running == GNUNET_YES)
6667 GNUNET_assert ((running_arr != NULL) && (total_running > running));
6668 running_arr[running] = i;
6673 GNUNET_assert ((stopped_arr != NULL) && (total_stopped > stopped));
6674 stopped_arr[stopped] = i;
6680 /* FIXME: make churned services a list! */
6681 pos = pg->peers[i].daemon->churned_services;
6682 /* FIXME: while (pos != NULL) */
6685 GNUNET_assert ((stopped_arr != NULL) && (total_stopped > stopped));
6686 stopped_arr[stopped] = i;
6688 /* FIXME: pos = pos->next; */
6692 GNUNET_assert ((running_arr != NULL) && (total_running > running));
6693 running_arr[running] = i;
6699 GNUNET_assert (running >= voff);
6702 shutdown_ctx = GNUNET_malloc (sizeof (struct ShutdownContext));
6703 shutdown_ctx->cb = &churn_stop_callback;
6704 shutdown_ctx->cb_cls = churn_ctx;
6705 shutdown_ctx->total_peers = voff;
6706 shutdown_ctx->timeout = timeout;
6709 for (i = 0; i < voff; i++)
6712 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Stopping peer %d!\n",
6713 running_arr[running_permute[i]]);
6715 GNUNET_assert (running_arr != NULL);
6716 peer_shutdown_ctx = GNUNET_malloc (sizeof (struct PeerShutdownContext));
6717 peer_shutdown_ctx->daemon =
6718 pg->peers[running_arr[running_permute[i]]].daemon;
6719 peer_shutdown_ctx->shutdown_ctx = shutdown_ctx;
6720 GNUNET_SCHEDULER_add_now (&schedule_churn_shutdown_task, peer_shutdown_ctx);
6723 GNUNET_assert (stopped >= von);
6726 churn_startup_ctx = GNUNET_malloc (sizeof (struct ChurnRestartContext));
6727 churn_startup_ctx->churn_ctx = churn_ctx;
6728 churn_startup_ctx->timeout = timeout;
6729 churn_startup_ctx->pg = pg;
6731 for (i = 0; i < von; i++)
6734 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Starting up peer %d!\n",
6735 stopped_arr[stopped_permute[i]]);
6737 GNUNET_assert (stopped_arr != NULL);
6738 peer_restart_ctx = GNUNET_malloc (sizeof (struct PeerRestartContext));
6739 peer_restart_ctx->churn_restart_ctx = churn_startup_ctx;
6740 peer_restart_ctx->daemon =
6741 pg->peers[stopped_arr[stopped_permute[i]]].daemon;
6742 GNUNET_SCHEDULER_add_now (&schedule_churn_restart, peer_restart_ctx);
6745 GNUNET_free_non_null (running_arr);
6746 GNUNET_free_non_null (stopped_arr);
6747 GNUNET_free_non_null (running_permute);
6748 GNUNET_free_non_null (stopped_permute);
6752 * Start a given service for each of the peers in the peer group.
6754 * @param pg handle for the peer group
6755 * @param service the service to start
6756 * @param timeout how long to wait for operations to finish before
6758 * @param cb function to call once finished
6759 * @param cb_cls closure for cb
6763 GNUNET_TESTING_daemons_start_service (struct GNUNET_TESTING_PeerGroup *pg,
6765 struct GNUNET_TIME_Relative timeout,
6766 GNUNET_TESTING_NotifyCompletion cb,
6769 struct ServiceStartContext *start_ctx;
6770 struct PeerServiceStartContext *peer_start_ctx;
6773 GNUNET_assert (service != NULL);
6775 start_ctx = GNUNET_malloc (sizeof (struct ServiceStartContext));
6777 start_ctx->remaining = pg->total;
6779 start_ctx->cb_cls = cb_cls;
6780 start_ctx->service = GNUNET_strdup (service);
6781 start_ctx->timeout = timeout;
6783 for (i = 0; i < pg->total; i++)
6786 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
6787 "Starting up service %s on peer %d!\n", service,
6788 stopped_arr[stopped_permute[i]]);
6790 peer_start_ctx = GNUNET_malloc (sizeof (struct PeerServiceStartContext));
6791 peer_start_ctx->start_ctx = start_ctx;
6792 peer_start_ctx->daemon = pg->peers[i].daemon;
6793 GNUNET_SCHEDULER_add_now (&schedule_service_start, peer_start_ctx);
6798 * Restart all peers in the given group.
6800 * @param pg the handle to the peer group
6801 * @param callback function to call on completion (or failure)
6802 * @param callback_cls closure for the callback function
6805 GNUNET_TESTING_daemons_restart (struct GNUNET_TESTING_PeerGroup *pg,
6806 GNUNET_TESTING_NotifyCompletion callback,
6809 struct RestartContext *restart_context;
6814 restart_context = GNUNET_malloc (sizeof (struct RestartContext));
6815 restart_context->peer_group = pg;
6816 restart_context->peers_restarted = 0;
6817 restart_context->callback = callback;
6818 restart_context->callback_cls = callback_cls;
6820 for (off = 0; off < pg->total; off++)
6822 GNUNET_TESTING_daemon_restart (pg->peers[off].daemon, &restart_callback,
6830 * Start or stop an individual peer from the given group.
6832 * @param pg handle to the peer group
6833 * @param offset which peer to start or stop
6834 * @param desired_status GNUNET_YES to have it running, GNUNET_NO to stop it
6835 * @param timeout how long to wait for shutdown
6836 * @param cb function to call at the end
6837 * @param cb_cls closure for cb
6840 GNUNET_TESTING_daemons_vary (struct GNUNET_TESTING_PeerGroup *pg,
6841 unsigned int offset, int desired_status,
6842 struct GNUNET_TIME_Relative timeout,
6843 GNUNET_TESTING_NotifyCompletion cb, void *cb_cls)
6845 struct ShutdownContext *shutdown_ctx;
6846 struct ChurnRestartContext *startup_ctx;
6847 struct ChurnContext *churn_ctx;
6849 if (GNUNET_NO == desired_status)
6851 if (NULL != pg->peers[offset].daemon)
6853 shutdown_ctx = GNUNET_malloc (sizeof (struct ShutdownContext));
6854 churn_ctx = GNUNET_malloc (sizeof (struct ChurnContext));
6855 churn_ctx->num_to_start = 0;
6856 churn_ctx->num_to_stop = 1;
6858 churn_ctx->cb_cls = cb_cls;
6859 shutdown_ctx->cb_cls = churn_ctx;
6860 GNUNET_TESTING_daemon_stop (pg->peers[offset].daemon, timeout,
6861 &churn_stop_callback, shutdown_ctx, GNUNET_NO,
6865 else if (GNUNET_YES == desired_status)
6867 if (NULL == pg->peers[offset].daemon)
6869 startup_ctx = GNUNET_malloc (sizeof (struct ChurnRestartContext));
6870 churn_ctx = GNUNET_malloc (sizeof (struct ChurnContext));
6871 churn_ctx->num_to_start = 1;
6872 churn_ctx->num_to_stop = 0;
6874 churn_ctx->cb_cls = cb_cls;
6875 startup_ctx->churn_ctx = churn_ctx;
6876 GNUNET_TESTING_daemon_start_stopped (pg->peers[offset].daemon, timeout,
6877 &churn_start_callback, startup_ctx);
6886 * Callback for shutting down peers in a peer group.
6888 * @param cls closure (struct ShutdownContext)
6889 * @param emsg NULL on success
6892 internal_shutdown_callback (void *cls, const char *emsg)
6894 struct PeerShutdownContext *peer_shutdown_ctx = cls;
6895 struct ShutdownContext *shutdown_ctx = peer_shutdown_ctx->shutdown_ctx;
6897 struct OutstandingSSH *ssh_pos;
6899 shutdown_ctx->outstanding--;
6900 if (peer_shutdown_ctx->daemon->hostname != NULL)
6901 decrement_outstanding_at_host (peer_shutdown_ctx->daemon->hostname,
6906 shutdown_ctx->peers_down++;
6911 GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, "internal_shutdown_callback",
6912 "Failed to stop a peer: %s\n", emsg);
6914 shutdown_ctx->peers_failed++;
6917 if ((shutdown_ctx->cb != NULL) &&
6918 (shutdown_ctx->peers_down + shutdown_ctx->peers_failed ==
6919 shutdown_ctx->total_peers))
6921 if (shutdown_ctx->peers_failed > 0)
6922 shutdown_ctx->cb (shutdown_ctx->cb_cls,
6923 "Not all peers successfully shut down!");
6925 shutdown_ctx->cb (shutdown_ctx->cb_cls, NULL);
6927 GNUNET_free (shutdown_ctx->pg->peers);
6928 GNUNET_free_non_null (shutdown_ctx->pg->hostkey_data);
6929 for (off = 0; off < shutdown_ctx->pg->num_hosts; off++)
6931 GNUNET_free (shutdown_ctx->pg->hosts[off].hostname);
6932 GNUNET_free_non_null (shutdown_ctx->pg->hosts[off].username);
6934 GNUNET_free_non_null (shutdown_ctx->pg->hosts);
6935 while (NULL != (ssh_pos = shutdown_ctx->pg->ssh_head))
6937 GNUNET_CONTAINER_DLL_remove (shutdown_ctx->pg->ssh_head,
6938 shutdown_ctx->pg->ssh_tail, ssh_pos);
6939 GNUNET_free (ssh_pos);
6941 GNUNET_free (shutdown_ctx->pg);
6942 GNUNET_free (shutdown_ctx);
6944 GNUNET_free (peer_shutdown_ctx);
6949 * Task to rate limit the number of outstanding peer shutdown
6950 * requests. This is necessary for making sure we don't do
6951 * too many ssh connections at once, but is generally nicer
6952 * to any system as well (graduated task starts, as opposed
6953 * to calling gnunet-arm N times all at once).
6956 schedule_shutdown_task (void *cls,
6957 const struct GNUNET_SCHEDULER_TaskContext *tc)
6959 struct PeerShutdownContext *peer_shutdown_ctx = cls;
6960 struct ShutdownContext *shutdown_ctx;
6962 GNUNET_assert (peer_shutdown_ctx != NULL);
6963 shutdown_ctx = peer_shutdown_ctx->shutdown_ctx;
6964 GNUNET_assert (shutdown_ctx != NULL);
6966 if ((shutdown_ctx->outstanding < shutdown_ctx->pg->max_concurrent_ssh) ||
6967 ((peer_shutdown_ctx->daemon->hostname != NULL) &&
6968 (count_outstanding_at_host
6969 (peer_shutdown_ctx->daemon->hostname,
6970 shutdown_ctx->pg) < shutdown_ctx->pg->max_concurrent_ssh)))
6972 if (peer_shutdown_ctx->daemon->hostname != NULL)
6973 increment_outstanding_at_host (peer_shutdown_ctx->daemon->hostname,
6975 shutdown_ctx->outstanding++;
6976 GNUNET_TESTING_daemon_stop (peer_shutdown_ctx->daemon,
6977 shutdown_ctx->timeout,
6978 &internal_shutdown_callback, peer_shutdown_ctx,
6979 shutdown_ctx->delete_files, GNUNET_NO);
6982 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply
6983 (GNUNET_TIME_UNIT_MILLISECONDS, 100),
6984 &schedule_shutdown_task, peer_shutdown_ctx);
6989 * Read a testing hosts file based on a configuration.
6990 * Returns a DLL of hosts (caller must free!) on success
6991 * or NULL on failure.
6993 * @param cfg a configuration with a testing section
6995 * @return DLL of hosts on success, NULL on failure
6997 struct GNUNET_TESTING_Host *
6998 GNUNET_TESTING_hosts_load (const struct GNUNET_CONFIGURATION_Handle *cfg)
7000 struct GNUNET_TESTING_Host *hosts;
7001 struct GNUNET_TESTING_Host *temphost;
7009 /* Check for a hostfile containing user@host:port triples */
7011 GNUNET_CONFIGURATION_get_value_string (cfg, "testing", "hostfile",
7018 if (hostfile != NULL)
7020 if (GNUNET_OK != GNUNET_DISK_file_test (hostfile))
7021 GNUNET_DISK_fn_write (hostfile, NULL, 0,
7022 GNUNET_DISK_PERM_USER_READ |
7023 GNUNET_DISK_PERM_USER_WRITE);
7024 if ((0 != STAT (hostfile, &frstat)) || (frstat.st_size == 0))
7026 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
7027 "Could not open file specified for host list, ending test!");
7028 GNUNET_free (hostfile);
7032 data = GNUNET_malloc_large (frstat.st_size);
7033 GNUNET_assert (data != NULL);
7034 if (frstat.st_size != GNUNET_DISK_fn_read (hostfile, data, frstat.st_size))
7036 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
7037 "Could not read file %s specified for host list, ending test!",
7039 GNUNET_free (hostfile);
7044 GNUNET_free_non_null (hostfile);
7048 while (count < frstat.st_size - 1)
7051 if (((data[count] == '\n')) && (buf != &data[count]))
7054 temphost = GNUNET_malloc (sizeof (struct GNUNET_TESTING_Host));
7056 sscanf (buf, "%a[a-zA-Z0-9_]@%a[a-zA-Z0-9.]:%hd",
7057 &temphost->username, &temphost->hostname, &temphost->port);
7060 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
7061 "Successfully read host %s, port %d and user %s from file\n",
7062 temphost->hostname, temphost->port, temphost->username);
7066 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
7067 "Error reading line `%s' in hostfile\n", buf);
7068 GNUNET_free (temphost);
7069 buf = &data[count + 1];
7072 temphost->next = hosts;
7074 buf = &data[count + 1];
7076 else if ((data[count] == '\n') || (data[count] == '\0'))
7077 buf = &data[count + 1];
7080 GNUNET_free_non_null (data);
7086 * Shutdown all peers started in the given group.
7088 * @param pg handle to the peer group
7089 * @param timeout how long to wait for shutdown
7090 * @param cb callback to notify upon success or failure
7091 * @param cb_cls closure for cb
7094 GNUNET_TESTING_daemons_stop (struct GNUNET_TESTING_PeerGroup *pg,
7095 struct GNUNET_TIME_Relative timeout,
7096 GNUNET_TESTING_NotifyCompletion cb, void *cb_cls)
7099 struct ShutdownContext *shutdown_ctx;
7100 struct PeerShutdownContext *peer_shutdown_ctx;
7103 struct PeerConnection *conn_iter;
7104 struct PeerConnection *temp_conn;
7106 struct ConnectContext *cc;
7108 GNUNET_assert (pg->total > 0);
7109 while (NULL != (cc = pg->cc_head))
7111 GNUNET_CONTAINER_DLL_remove (pg->cc_head, pg->cc_tail, cc);
7112 if (GNUNET_SCHEDULER_NO_TASK != cc->task)
7113 GNUNET_SCHEDULER_cancel (cc->task);
7115 GNUNET_TESTING_daemons_connect_cancel (cc->cc);
7119 shutdown_ctx = GNUNET_malloc (sizeof (struct ShutdownContext));
7120 shutdown_ctx->delete_files =
7121 GNUNET_CONFIGURATION_get_value_yesno (pg->cfg, "TESTING", "DELETE_FILES");
7122 shutdown_ctx->cb = cb;
7123 shutdown_ctx->cb_cls = cb_cls;
7124 shutdown_ctx->total_peers = pg->total;
7125 shutdown_ctx->timeout = timeout;
7126 shutdown_ctx->pg = pg;
7128 for (off = 0; off < pg->total; off++)
7130 GNUNET_assert (NULL != pg->peers[off].daemon);
7131 peer_shutdown_ctx = GNUNET_malloc (sizeof (struct PeerShutdownContext));
7132 peer_shutdown_ctx->daemon = pg->peers[off].daemon;
7133 peer_shutdown_ctx->shutdown_ctx = shutdown_ctx;
7134 GNUNET_SCHEDULER_add_now (&schedule_shutdown_task, peer_shutdown_ctx);
7136 if (NULL != pg->peers[off].cfg)
7138 GNUNET_CONFIGURATION_destroy (pg->peers[off].cfg);
7139 pg->peers[off].cfg = NULL;
7142 conn_iter = pg->peers[off].allowed_peers_head;
7143 while (conn_iter != NULL)
7145 temp_conn = conn_iter->next;
7146 GNUNET_free (conn_iter);
7147 conn_iter = temp_conn;
7150 conn_iter = pg->peers[off].connect_peers_head;
7151 while (conn_iter != NULL)
7153 temp_conn = conn_iter->next;
7154 GNUNET_free (conn_iter);
7155 conn_iter = temp_conn;
7158 conn_iter = pg->peers[off].blacklisted_peers_head;
7159 while (conn_iter != NULL)
7161 temp_conn = conn_iter->next;
7162 GNUNET_free (conn_iter);
7163 conn_iter = temp_conn;
7166 conn_iter = pg->peers[off].connect_peers_working_set_head;
7167 while (conn_iter != NULL)
7169 temp_conn = conn_iter->next;
7170 GNUNET_free (conn_iter);
7171 conn_iter = temp_conn;
7174 if (pg->peers[off].allowed_peers != NULL)
7175 GNUNET_CONTAINER_multihashmap_destroy (pg->peers[off].allowed_peers);
7176 if (pg->peers[off].connect_peers != NULL)
7177 GNUNET_CONTAINER_multihashmap_destroy (pg->peers[off].connect_peers);
7178 if (pg->peers[off].blacklisted_peers != NULL)
7179 GNUNET_CONTAINER_multihashmap_destroy (pg->peers[off].blacklisted_peers);
7184 /* end of testing_group.c */