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
29 #include "gnunet_constants.h"
30 #include "gnunet_arm_service.h"
31 #include "gnunet_testing_lib.h"
32 #include "gnunet_core_service.h"
34 #define VERBOSE_TESTING GNUNET_NO
36 #define VERBOSE_TOPOLOGY GNUNET_NO
38 #define DEBUG_CHURN GNUNET_NO
40 #define USE_START_HELPER GNUNET_YES
44 /* Before connecting peers, send all of the HELLOs */
45 #define USE_SEND_HELLOS GNUNET_NO
47 #define TOPOLOGY_HACK GNUNET_YES
51 * Lowest port used for GNUnet testing. Should be high enough to not
52 * conflict with other applications running on the hosts but be low
53 * enough to not conflict with client-ports (typically starting around
56 #define LOW_PORT 12000
59 * Highest port used for GNUnet testing. Should be low enough to not
60 * conflict with the port range for "local" ports (client apps; see
61 * /proc/sys/net/ipv4/ip_local_port_range on Linux for example).
63 #define HIGH_PORT 56000
65 /* Maximum time to delay connect attempt */
66 #define MAX_CONNECT_DELAY 300
69 * Which list of peers do we need to modify?
73 /** Modify allowed peers */
76 /** Modify connect peers */
79 /** Modify blacklist peers */
82 /** Modify workingset peers */
87 * Prototype of a function called whenever two peers would be connected
88 * in a certain topology.
91 (*GNUNET_TESTING_ConnectionProcessor)(struct GNUNET_TESTING_PeerGroup * pg,
92 unsigned int first, unsigned int second,
93 enum PeerLists list, unsigned int check);
96 * Context for handling churning a peer group
101 * The peergroup we are dealing with.
103 struct GNUNET_TESTING_PeerGroup *pg;
106 * Name of the service to churn on/off, NULL
107 * to churn entire peer.
112 * Callback used to notify of churning finished
114 GNUNET_TESTING_NotifyCompletion cb;
117 * Closure for callback
122 * Number of peers that still need to be started
124 unsigned int num_to_start;
127 * Number of peers that still need to be stopped
129 unsigned int num_to_stop;
132 * Number of peers that failed to start
134 unsigned int num_failed_start;
137 * Number of peers that failed to stop
139 unsigned int num_failed_stop;
142 struct RestartContext
145 * The group of peers being restarted
147 struct GNUNET_TESTING_PeerGroup *peer_group;
150 * How many peers have been restarted thus far
152 unsigned int peers_restarted;
155 * How many peers got an error when restarting
157 unsigned int peers_restart_failed;
160 * The function to call once all peers have been restarted
162 GNUNET_TESTING_NotifyCompletion callback;
165 * Closure for callback function
171 struct SendHelloContext
174 * Global handle to the peer group.
176 struct GNUNET_TESTING_PeerGroup *pg;
179 * The data about this specific peer.
181 struct PeerData *peer;
184 * The next HELLO that needs sent to this peer.
186 struct PeerConnection *peer_pos;
189 * Are we connected to CORE yet?
191 unsigned int core_ready;
194 * How many attempts should we make for failed connections?
196 unsigned int connect_attempts;
199 * Task for scheduling core connect requests to be sent.
201 GNUNET_SCHEDULER_TaskIdentifier core_connect_task;
204 struct ShutdownContext
206 struct GNUNET_TESTING_PeerGroup *pg;
208 * Total peers to wait for
210 unsigned int total_peers;
213 * Number of peers successfully shut down
215 unsigned int peers_down;
218 * Number of peers failed to shut down
220 unsigned int peers_failed;
223 * Number of peers we have started shutting
224 * down. If too many, wait on them.
226 unsigned int outstanding;
229 * Timeout for shutdown.
231 struct GNUNET_TIME_Relative timeout;
234 * Callback to call when all peers either
235 * shutdown or failed to shutdown
237 GNUNET_TESTING_NotifyCompletion cb;
245 * Should we delete all of the files from the peers?
251 * Individual shutdown context for a particular peer.
253 struct PeerShutdownContext
256 * Pointer to the high level shutdown context.
258 struct ShutdownContext *shutdown_ctx;
261 * The daemon handle for the peer to shut down.
263 struct GNUNET_TESTING_Daemon *daemon;
267 * Individual shutdown context for a particular peer.
269 struct PeerRestartContext
272 * Pointer to the high level restart context.
274 struct ChurnRestartContext *churn_restart_ctx;
277 * The daemon handle for the peer to shut down.
279 struct GNUNET_TESTING_Daemon *daemon;
282 struct ServiceStartContext
284 struct GNUNET_TESTING_PeerGroup *pg;
285 unsigned int remaining;
286 GNUNET_TESTING_NotifyCompletion cb;
287 unsigned int outstanding;
289 struct GNUNET_TIME_Relative timeout;
294 * Individual shutdown context for a particular peer.
296 struct PeerServiceStartContext
299 * Pointer to the high level start context.
301 struct ServiceStartContext *start_ctx;
304 * The daemon handle for the peer to start the service on.
306 struct GNUNET_TESTING_Daemon *daemon;
309 struct CreateTopologyContext
313 * Function to call with number of connections
315 GNUNET_TESTING_NotifyConnections cont;
318 * Closure for connection notification
325 /** Waiting to read number of peers */
328 /** Should find next peer index */
331 /** Should find colon */
334 /** Should read other peer index, space, or endline */
339 struct PeerConnection
344 struct PeerConnection *prev;
349 struct PeerConnection *next;
352 * Index of daemon in pg->peers
359 struct InternalStartContext
362 * Pointer to peerdata
364 struct PeerData *peer;
367 * Timeout for peer startup
369 struct GNUNET_TIME_Relative timeout;
372 * Client callback for hostkey notification
374 GNUNET_TESTING_NotifyHostkeyCreated hostkey_callback;
377 * Closure for hostkey_callback
382 * Client callback for peer start notification
384 GNUNET_TESTING_NotifyDaemonRunning start_cb;
392 * Hostname, where to start the peer
394 const char *hostname;
397 * Username to use when connecting to the
400 const char *username;
403 * Pointer to starting memory location of a hostkey
408 * Port to use for ssh.
414 struct ChurnRestartContext
417 * PeerGroup that we are working with.
419 struct GNUNET_TESTING_PeerGroup *pg;
422 * Number of restarts currently in flight.
424 unsigned int outstanding;
427 * Handle to the underlying churn context.
429 struct ChurnContext *churn_ctx;
432 * How long to allow the operation to take.
434 struct GNUNET_TIME_Relative timeout;
437 struct OutstandingSSH
439 struct OutstandingSSH *next;
441 struct OutstandingSSH *prev;
444 * Number of current ssh connections.
446 uint32_t outstanding;
449 * The hostname of this peer.
451 const char *hostname;
455 * Data we keep per peer.
460 * (Initial) configuration of the host.
461 * (initial because clients could change
462 * it and we would not know about those
465 struct GNUNET_CONFIGURATION_Handle *cfg;
468 * Handle for controlling the daemon.
470 struct GNUNET_TESTING_Daemon *daemon;
473 * The peergroup this peer belongs to.
475 struct GNUNET_TESTING_PeerGroup *pg;
479 * Linked list of allowed peer connections.
481 struct PeerConnection *allowed_peers_head;
484 * Linked list of allowed peer connections.
486 struct PeerConnection *allowed_peers_tail;
489 * Linked list of blacklisted peer connections.
491 struct PeerConnection *blacklisted_peers_head;
494 * Linked list of blacklisted peer connections.
496 struct PeerConnection *blacklisted_peers_tail;
499 * Linked list of connect peer connections.
501 struct PeerConnection *connect_peers_head;
504 * Linked list of connect peer connections.
506 struct PeerConnection *connect_peers_tail;
509 * Linked list of connect peer connections.
511 struct PeerConnection *connect_peers_working_set_head;
514 * Linked list of connect peer connections.
516 struct PeerConnection *connect_peers_working_set_tail;
520 * Hash map of allowed peer connections (F2F created topology)
522 struct GNUNET_CONTAINER_MultiHashMap *allowed_peers;
525 * Hash map of blacklisted peers
527 struct GNUNET_CONTAINER_MultiHashMap *blacklisted_peers;
530 * Hash map of peer connections
532 struct GNUNET_CONTAINER_MultiHashMap *connect_peers;
535 * Temporary hash map of peer connections
537 struct GNUNET_CONTAINER_MultiHashMap *connect_peers_working_set;
541 * Temporary variable for topology creation, should be reset before
542 * creating any topology so the count is valid once finished.
547 * Context to keep track of peers being started, to
548 * stagger hostkey generation and peer startup.
550 struct InternalStartContext internal_context;
554 * Linked list of per-host data.
564 * SSH username to use when connecting to this host.
569 * SSH port to use when connecting to this host.
574 * Lowest port that we have not yet used
580 struct TopologyIterateContext
583 * The peergroup we are working with.
585 struct GNUNET_TESTING_PeerGroup *pg;
588 * Callback for notifying of two connected peers.
590 GNUNET_TESTING_NotifyTopology topology_cb;
593 * Closure for topology_cb
598 * Number of peers currently connected to.
600 unsigned int connected;
603 * Number of peers we have finished iterating.
605 unsigned int completed;
608 * Number of peers total.
613 struct StatsIterateContext
616 * The peergroup that we are dealing with.
618 struct GNUNET_TESTING_PeerGroup *pg;
621 * Continuation to call once all stats information has been retrieved.
623 GNUNET_STATISTICS_Callback cont;
626 * Proc function to call on each value received.
628 GNUNET_TESTING_STATISTICS_Iterator proc;
631 * Closure for topology_cb
636 * Number of peers currently connected to.
638 unsigned int connected;
641 * Number of peers we have finished iterating.
643 unsigned int completed;
646 * Number of peers total.
654 struct GNUNET_TESTING_Daemon *daemon;
657 struct StatsCoreContext
660 struct GNUNET_TESTING_Daemon *daemon;
662 * Handle to the statistics service.
664 struct GNUNET_STATISTICS_Handle *stats_handle;
667 * Handle for getting statistics.
669 struct GNUNET_STATISTICS_GetHandle *stats_get_handle;
672 struct ConnectTopologyContext
675 * How many connections are left to create.
677 unsigned int remaining_connections;
680 * Handle to group of peers.
682 struct GNUNET_TESTING_PeerGroup *pg;
685 * How long to try this connection before timing out.
687 struct GNUNET_TIME_Relative connect_timeout;
690 * How many times to retry connecting the two peers.
692 unsigned int connect_attempts;
695 * Temp value set for each iteration.
697 //struct PeerData *first;
700 * Notification that all peers are connected.
702 GNUNET_TESTING_NotifyCompletion notify_connections_done;
705 * Closure for notify.
711 * Handle to a group of GNUnet peers.
713 struct GNUNET_TESTING_PeerGroup
716 * Configuration template.
718 const struct GNUNET_CONFIGURATION_Handle *cfg;
721 * Function to call on each started daemon.
723 //GNUNET_TESTING_NotifyDaemonRunning cb;
731 * Function to call on each topology connection created
733 GNUNET_TESTING_NotifyConnection notify_connection;
736 * Callback for notify_connection
738 void *notify_connection_cls;
741 * Array of information about hosts.
743 struct HostData *hosts;
746 * Number of hosts (size of HostData)
748 unsigned int num_hosts;
751 * Array of "total" peers.
753 struct PeerData *peers;
756 * Number of peers in this group.
761 * At what time should we fail the peer startup process?
763 struct GNUNET_TIME_Absolute max_timeout;
766 * How many peers are being started right now?
768 unsigned int starting;
771 * How many peers have already been started?
773 unsigned int started;
776 * Number of possible connections to peers
779 unsigned int max_outstanding_connections;
782 * Number of ssh connections to peers (max).
784 unsigned int max_concurrent_ssh;
787 * Number of connects we are waiting on, allows us to rate limit
790 unsigned int outstanding_connects;
793 * Number of HELLOs we have yet to send.
795 unsigned int remaining_hellos;
798 * How many connects have already been scheduled?
800 unsigned int total_connects_scheduled;
803 * Hostkeys loaded from a file.
808 * Head of DLL to keep track of the number of outstanding
809 * ssh connections per peer.
811 struct OutstandingSSH *ssh_head;
814 * Tail of DLL to keep track of the number of outstanding
815 * ssh connections per peer.
817 struct OutstandingSSH *ssh_tail;
820 * Stop scheduling peers connecting.
822 unsigned int stop_connects;
825 * Connection context for peer group.
827 struct ConnectTopologyContext ct_ctx;
833 * The altered configuration.
835 struct GNUNET_CONFIGURATION_Handle *ret;
838 * The original configuration to alter.
840 const struct GNUNET_CONFIGURATION_Handle *orig;
843 * The hostname that this peer will run on.
845 const char *hostname;
848 * The next possible port to assign.
853 * Unique number for unix domain sockets.
858 * Unique number for this peer/host to offset
859 * things that are grouped by host.
864 struct ConnectContext
867 * Index of peer to connect second to.
869 uint32_t first_index;
872 * Index of peer to connect first to.
874 uint32_t second_index;
877 * Higher level topology connection context.
879 struct ConnectTopologyContext *ct_ctx;
882 * Whether this connection has been accounted for in the schedule_connect call.
887 struct UnblacklistContext
892 struct GNUNET_TESTING_PeerGroup *pg;
895 * uid of the first peer
905 struct GNUNET_TESTING_PeerGroup *pg;
908 * uid of the first peer
913 * Peer data for first peer.
915 struct PeerData *first;
918 * Random percentage to use
923 struct MinimumContext
928 struct GNUNET_TESTING_PeerGroup *pg;
931 * uid of the first peer
936 * Peer data for first peer.
938 struct PeerData *first;
941 * Number of conns per peer
943 unsigned int num_to_add;
946 * Permuted array of all possible connections. Only add the Nth
947 * peer if it's in the Nth position.
949 unsigned int *pg_array;
952 * What number is the current element we are iterating over?
954 unsigned int current;
962 struct GNUNET_TESTING_PeerGroup *pg;
965 * uid of the first peer
970 * uid of the second peer
975 * Peer data for first peer.
977 struct PeerData *first;
980 * Which peer has been chosen as the one to add?
985 * What number is the current element we are iterating over?
987 unsigned int current;
991 * Simple struct to keep track of progress, and print a
992 * nice little percentage meter for long running tasks.
1000 unsigned int dotnum;
1002 unsigned int completed;
1006 char *startup_string;
1011 * Convert unique ID to hash code.
1013 * @param uid unique ID to convert
1014 * @param hash set to uid (extended with zeros)
1017 hash_from_uid (uint32_t uid, GNUNET_HashCode * hash)
1019 memset (hash, 0, sizeof (GNUNET_HashCode));
1020 *((uint32_t *) hash) = uid;
1024 * Convert hash code to unique ID.
1026 * @param uid unique ID to convert
1027 * @param hash set to uid (extended with zeros)
1030 uid_from_hash (const GNUNET_HashCode * hash, uint32_t * uid)
1032 memcpy (uid, hash, sizeof (uint32_t));
1037 static struct GNUNET_CORE_MessageHandler no_handlers[] =
1043 * Create a meter to keep track of the progress of some task.
1045 * @param total the total number of items to complete
1046 * @param start_string a string to prefix the meter with (if printing)
1047 * @param print GNUNET_YES to print the meter, GNUNET_NO to count
1050 * @return the progress meter
1052 static struct ProgressMeter *
1053 create_meter(unsigned int total, char * start_string, int print)
1055 struct ProgressMeter *ret;
1056 ret = GNUNET_malloc(sizeof(struct ProgressMeter));
1059 ret->modnum = total / 4;
1060 if (ret->modnum == 0) /* Divide by zero check */
1062 ret->dotnum = (total / 50) + 1;
1063 if (start_string != NULL)
1064 ret->startup_string = GNUNET_strdup(start_string);
1066 ret->startup_string = GNUNET_strdup("");
1072 * Update progress meter (increment by one).
1074 * @param meter the meter to update and print info for
1076 * @return GNUNET_YES if called the total requested,
1077 * GNUNET_NO if more items expected
1080 update_meter(struct ProgressMeter *meter)
1082 if (meter->print == GNUNET_YES)
1084 if (meter->completed % meter->modnum == 0)
1086 if (meter->completed == 0)
1088 fprintf (stdout, "%sProgress: [0%%", meter->startup_string);
1091 fprintf (stdout, "%d%%", (int) (((float) meter->completed
1092 / meter->total) * 100));
1094 else if (meter->completed % meter->dotnum == 0)
1095 fprintf (stdout, ".");
1097 if (meter->completed + 1 == meter->total)
1098 fprintf (stdout, "%d%%]\n", 100);
1103 if (meter->completed == meter->total)
1105 if (meter->completed > meter->total)
1106 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Progress meter overflow!!\n");
1111 * Reset progress meter.
1113 * @param meter the meter to reset
1115 * @return GNUNET_YES if meter reset,
1116 * GNUNET_SYSERR on error
1119 reset_meter(struct ProgressMeter *meter)
1122 return GNUNET_SYSERR;
1124 meter->completed = 0;
1129 * Release resources for meter
1131 * @param meter the meter to free
1134 free_meter(struct ProgressMeter *meter)
1136 GNUNET_free_non_null (meter->startup_string);
1137 GNUNET_free (meter);
1141 * Get a topology from a string input.
1143 * @param topology where to write the retrieved topology
1144 * @param topology_string The string to attempt to
1145 * get a configuration value from
1146 * @return GNUNET_YES if topology string matched a
1147 * known topology, GNUNET_NO if not
1150 GNUNET_TESTING_topology_get(enum GNUNET_TESTING_Topology *topology,
1151 const char *topology_string)
1154 * Strings representing topologies in enum
1156 static const char *topology_strings[] =
1159 * A clique (everyone connected to everyone else).
1164 * Small-world network (2d torus plus random links).
1169 * Small-world network (ring plus random links).
1189 * Certain percentage of peers are unable to communicate directly
1190 * replicating NAT conditions
1195 * Scale free topology.
1200 * Straight line topology.
1205 * All peers are disconnected.
1210 * Read the topology from a file.
1217 if (topology_string == NULL)
1219 while (topology_strings[curr] != NULL)
1221 if (strcasecmp (topology_strings[curr], topology_string) == 0)
1228 *topology = GNUNET_TESTING_TOPOLOGY_NONE;
1233 * Get connect topology option from string input.
1235 * @param topology_option where to write the retrieved topology
1236 * @param topology_string The string to attempt to
1237 * get a configuration value from
1238 * @return GNUNET_YES if string matched a known
1239 * topology option, GNUNET_NO if not
1242 GNUNET_TESTING_topology_option_get(
1243 enum GNUNET_TESTING_TopologyOption *topology_option,
1244 const char *topology_string)
1247 * Options for connecting a topology as strings.
1249 static const char *topology_option_strings[] =
1252 * Try to connect all peers specified in the topology.
1257 * Choose a random subset of connections to create.
1259 "CONNECT_RANDOM_SUBSET",
1262 * Create at least X connections for each peer.
1267 * Using a depth first search, create one connection
1268 * per peer. If any are missed (graph disconnected)
1269 * start over at those peers until all have at least one
1275 * Find the N closest peers to each allowed peer in the
1276 * topology and make sure a connection to those peers
1277 * exists in the connect topology.
1282 * No options specified.
1289 if (topology_string == NULL)
1291 while (NULL != topology_option_strings[curr])
1293 if (strcasecmp (topology_option_strings[curr], topology_string) == 0)
1295 *topology_option = curr;
1300 *topology_option = GNUNET_TESTING_TOPOLOGY_OPTION_NONE;
1305 * Function to iterate over options. Copies
1306 * the options to the target configuration,
1307 * updating PORT values as needed.
1309 * @param cls closure
1310 * @param section name of the section
1311 * @param option name of the option
1312 * @param value value of the option
1315 update_config(void *cls, const char *section, const char *option,
1318 struct UpdateContext *ctx = cls;
1322 char *single_variable;
1323 char *per_host_variable;
1324 unsigned long long num_per_host;
1326 GNUNET_asprintf (&single_variable, "single_%s_per_host", section);
1327 GNUNET_asprintf (&per_host_variable, "num_%s_per_host", section);
1329 if ((0 == strcmp (option, "PORT")) && (1 == sscanf (value, "%u", &ival)))
1331 if ((ival != 0) && (GNUNET_YES
1332 != GNUNET_CONFIGURATION_get_value_yesno (ctx->orig, "testing",
1335 GNUNET_snprintf (cval, sizeof(cval), "%u", ctx->nport++);
1338 else if ((ival != 0) && (GNUNET_YES
1339 == GNUNET_CONFIGURATION_get_value_yesno (ctx->orig, "testing",
1341 && GNUNET_CONFIGURATION_get_value_number (ctx->orig, "testing",
1345 GNUNET_snprintf (cval, sizeof(cval), "%u", ival + ctx->fdnum
1350 /* FIXME: REMOVE FOREVER HACK HACK HACK */
1351 if (0 == strcasecmp (section, "transport-tcp"))
1352 GNUNET_CONFIGURATION_set_value_string (ctx->ret, section, "ADVERTISED_PORT", value);
1355 if (0 == strcmp (option, "UNIXPATH"))
1357 if (GNUNET_YES != GNUNET_CONFIGURATION_get_value_yesno (ctx->orig,
1361 GNUNET_snprintf (uval, sizeof(uval), "/tmp/test-service-%s-%u",
1362 section, ctx->upnum++);
1365 else if ((GNUNET_YES
1366 == GNUNET_CONFIGURATION_get_value_number (ctx->orig, "testing",
1369 && (num_per_host > 0))
1372 GNUNET_snprintf (uval, sizeof(uval), "/tmp/test-service-%s-%u",
1373 section, ctx->fdnum % num_per_host);
1378 if ((0 == strcmp (option, "HOSTNAME")) && (ctx->hostname != NULL))
1380 value = ctx->hostname;
1382 GNUNET_free (single_variable);
1383 GNUNET_free (per_host_variable);
1384 GNUNET_CONFIGURATION_set_value_string (ctx->ret, section, option, value);
1388 * Create a new configuration using the given configuration
1389 * as a template; however, each PORT in the existing cfg
1390 * must be renumbered by incrementing "*port". If we run
1391 * out of "*port" numbers, return NULL.
1393 * @param cfg template configuration
1394 * @param off the current peer offset
1395 * @param port port numbers to use, update to reflect
1396 * port numbers that were used
1397 * @param upnum number to make unix domain socket names unique
1398 * @param hostname hostname of the controlling host, to allow control connections from
1399 * @param fdnum number used to offset the unix domain socket for grouped processes
1400 * (such as statistics or peerinfo, which can be shared among others)
1402 * @return new configuration, NULL on error
1404 static struct GNUNET_CONFIGURATION_Handle *
1405 make_config(const struct GNUNET_CONFIGURATION_Handle *cfg, uint32_t off,
1406 uint16_t * port, uint32_t * upnum, const char *hostname,
1409 struct UpdateContext uc;
1412 char *allowed_hosts;
1413 unsigned long long skew_variance;
1414 unsigned long long skew_offset;
1415 long long actual_offset;
1421 uc.ret = GNUNET_CONFIGURATION_create ();
1422 uc.hostname = hostname;
1425 GNUNET_CONFIGURATION_iterate (cfg, &update_config, &uc);
1426 if (uc.nport >= HIGH_PORT)
1429 GNUNET_CONFIGURATION_destroy (uc.ret);
1433 if ((GNUNET_OK == GNUNET_CONFIGURATION_get_value_number (cfg, "testing",
1436 && (skew_variance > 0))
1438 skew_offset = GNUNET_CRYPTO_random_u64(GNUNET_CRYPTO_QUALITY_WEAK, skew_variance + 1);
1439 actual_offset = skew_offset - GNUNET_CRYPTO_random_u64(GNUNET_CRYPTO_QUALITY_WEAK, skew_variance + 1);
1440 /* Min is -skew_variance, Max is skew_variance */
1441 skew_offset = skew_variance + actual_offset; /* Normal distribution around 0 */
1442 GNUNET_CONFIGURATION_set_value_number(uc.ret, "testing", "skew_offset", skew_offset);
1445 if (GNUNET_CONFIGURATION_get_value_string (cfg, "testing", "control_host",
1446 &control_host) == GNUNET_OK)
1448 if (hostname != NULL)
1449 GNUNET_asprintf (&allowed_hosts, "%s; 127.0.0.1; %s;", control_host,
1452 GNUNET_asprintf (&allowed_hosts, "%s; 127.0.0.1;", control_host);
1454 GNUNET_CONFIGURATION_set_value_string (uc.ret, "core", "ACCEPT_FROM",
1457 GNUNET_CONFIGURATION_set_value_string (uc.ret, "nse", "ACCEPT_FROM",
1460 GNUNET_CONFIGURATION_set_value_string (uc.ret, "transport",
1461 "ACCEPT_FROM", allowed_hosts);
1462 GNUNET_CONFIGURATION_set_value_string (uc.ret, "dht", "ACCEPT_FROM",
1464 GNUNET_CONFIGURATION_set_value_string (uc.ret, "statistics",
1465 "ACCEPT_FROM", allowed_hosts);
1467 GNUNET_CONFIGURATION_set_value_string (uc.ret, "core", "UNIXPATH", "");
1468 GNUNET_CONFIGURATION_set_value_string (uc.ret, "transport", "UNIXPATH",
1470 GNUNET_CONFIGURATION_set_value_string (uc.ret, "dht", "UNIXPATH", "");
1471 GNUNET_CONFIGURATION_set_value_string (uc.ret, "statistics", "UNIXPATH",
1474 GNUNET_CONFIGURATION_set_value_string (uc.ret, "transport-tcp", "USE_LOCALADDR",
1476 GNUNET_CONFIGURATION_set_value_string (uc.ret, "transport-udp", "USE_LOCALADDR",
1478 GNUNET_free_non_null (control_host);
1479 GNUNET_free (allowed_hosts);
1482 /* arm needs to know to allow connections from the host on which it is running,
1483 * otherwise gnunet-arm is unable to connect to it in some instances */
1484 if (hostname != NULL)
1486 GNUNET_asprintf (&allowed_hosts, "%s; 127.0.0.1;", hostname);
1487 GNUNET_CONFIGURATION_set_value_string (uc.ret, "nat", "BINDTO",
1489 GNUNET_CONFIGURATION_set_value_string (uc.ret, "nat", "INTERNAL_ADDRESS",
1491 GNUNET_CONFIGURATION_set_value_string (uc.ret, "nat", "EXTERNAL_ADDRESS",
1493 GNUNET_CONFIGURATION_set_value_string (uc.ret, "disablev6", "BINDTO",
1495 GNUNET_CONFIGURATION_set_value_string (uc.ret, "transport-tcp", "USE_LOCALADDR",
1497 GNUNET_CONFIGURATION_set_value_string (uc.ret, "transport-udp", "USE_LOCALADDR",
1499 GNUNET_CONFIGURATION_set_value_string (uc.ret, "arm", "ACCEPT_FROM",
1501 GNUNET_free (allowed_hosts);
1505 GNUNET_CONFIGURATION_set_value_string (uc.ret, "transport-tcp", "USE_LOCALADDR",
1507 GNUNET_CONFIGURATION_set_value_string (uc.ret, "transport-udp", "USE_LOCALADDR",
1509 GNUNET_CONFIGURATION_set_value_string (uc.ret, "nat", "BINDTO",
1511 GNUNET_CONFIGURATION_set_value_string (uc.ret, "nat", "INTERNAL_ADDRESS",
1513 GNUNET_CONFIGURATION_set_value_string (uc.ret, "nat", "EXTERNAL_ADDRESS",
1515 GNUNET_CONFIGURATION_set_value_string (uc.ret, "disablev6", "BINDTO",
1519 *port = (uint16_t) uc.nport;
1527 * Remove entries from the peer connection list
1529 * @param pg the peer group we are working with
1530 * @param first index of the first peer
1531 * @param second index of the second peer
1532 * @param list the peer list to use
1533 * @param check UNUSED
1535 * @return the number of connections added (can be 0, 1 or 2)
1539 remove_connections(struct GNUNET_TESTING_PeerGroup *pg, unsigned int first,
1540 unsigned int second, enum PeerLists list, unsigned int check)
1544 struct PeerConnection **first_list;
1545 struct PeerConnection **second_list;
1546 struct PeerConnection *first_iter;
1547 struct PeerConnection *second_iter;
1548 struct PeerConnection **first_tail;
1549 struct PeerConnection **second_tail;
1552 GNUNET_HashCode hash_first;
1553 GNUNET_HashCode hash_second;
1555 hash_from_uid (first, &hash_first);
1556 hash_from_uid (second, &hash_second);
1564 first_list = &pg->peers[first].allowed_peers_head;
1565 second_list = &pg->peers[second].allowed_peers_head;
1566 first_tail = &pg->peers[first].allowed_peers_tail;
1567 second_tail = &pg->peers[second].allowed_peers_tail;
1570 first_list = &pg->peers[first].connect_peers_head;
1571 second_list = &pg->peers[second].connect_peers_head;
1572 first_tail = &pg->peers[first].connect_peers_tail;
1573 second_tail = &pg->peers[second].connect_peers_tail;
1576 first_list = &pg->peers[first].blacklisted_peers_head;
1577 second_list = &pg->peers[second].blacklisted_peers_head;
1578 first_tail = &pg->peers[first].blacklisted_peers_tail;
1579 second_tail = &pg->peers[second].blacklisted_peers_tail;
1582 first_list = &pg->peers[first].connect_peers_working_set_head;
1583 second_list = &pg->peers[second].connect_peers_working_set_head;
1584 first_tail = &pg->peers[first].connect_peers_working_set_tail;
1585 second_tail = &pg->peers[second].connect_peers_working_set_tail;
1592 first_iter = *first_list;
1593 while (first_iter != NULL)
1595 if (first_iter->index == second)
1597 GNUNET_CONTAINER_DLL_remove(*first_list, *first_tail, first_iter);
1598 GNUNET_free(first_iter);
1602 first_iter = first_iter->next;
1605 second_iter = *second_list;
1606 while (second_iter != NULL)
1608 if (second_iter->index == first)
1610 GNUNET_CONTAINER_DLL_remove(*second_list, *second_tail, second_iter);
1611 GNUNET_free(second_iter);
1615 second_iter = second_iter->next;
1619 GNUNET_CONTAINER_multihashmap_contains (pg->peers[first].blacklisted_peers,
1622 GNUNET_CONTAINER_multihashmap_remove_all (pg->peers[first].blacklisted_peers,
1627 GNUNET_CONTAINER_multihashmap_contains (pg->peers[second].blacklisted_peers,
1630 GNUNET_CONTAINER_multihashmap_remove_all (pg->peers[second].blacklisted_peers,
1639 * Add entries to the some list
1641 * @param pg the peer group we are working with
1642 * @param first index of the first peer
1643 * @param second index of the second peer
1644 * @param list the list type that we should modify
1645 * @param check GNUNET_YES to check lists before adding
1646 * GNUNET_NO to force add
1648 * @return the number of connections added (can be 0, 1 or 2)
1652 add_connections(struct GNUNET_TESTING_PeerGroup *pg, unsigned int first,
1653 unsigned int second, enum PeerLists list, unsigned int check)
1659 struct PeerConnection **first_list;
1660 struct PeerConnection **second_list;
1661 struct PeerConnection *first_iter;
1662 struct PeerConnection *second_iter;
1663 struct PeerConnection *new_first;
1664 struct PeerConnection *new_second;
1665 struct PeerConnection **first_tail;
1666 struct PeerConnection **second_tail;
1671 first_list = &pg->peers[first].allowed_peers_head;
1672 second_list = &pg->peers[second].allowed_peers_head;
1673 first_tail = &pg->peers[first].allowed_peers_tail;
1674 second_tail = &pg->peers[second].allowed_peers_tail;
1677 first_list = &pg->peers[first].connect_peers_head;
1678 second_list = &pg->peers[second].connect_peers_head;
1679 first_tail = &pg->peers[first].connect_peers_tail;
1680 second_tail = &pg->peers[second].connect_peers_tail;
1683 first_list = &pg->peers[first].blacklisted_peers_head;
1684 second_list = &pg->peers[second].blacklisted_peers_head;
1685 first_tail = &pg->peers[first].blacklisted_peers_tail;
1686 second_tail = &pg->peers[second].blacklisted_peers_tail;
1689 first_list = &pg->peers[first].connect_peers_working_set_head;
1690 second_list = &pg->peers[second].connect_peers_working_set_head;
1691 first_tail = &pg->peers[first].connect_peers_working_set_tail;
1692 second_tail = &pg->peers[second].connect_peers_working_set_tail;
1699 add_first = GNUNET_YES;
1700 add_second = GNUNET_YES;
1702 if (check == GNUNET_YES)
1704 first_iter = *first_list;
1705 while (first_iter != NULL)
1707 if (first_iter->index == second)
1709 add_first = GNUNET_NO;
1712 first_iter = first_iter->next;
1715 second_iter = *second_list;
1716 while (second_iter != NULL)
1718 if (second_iter->index == first)
1720 add_second = GNUNET_NO;
1723 second_iter = second_iter->next;
1730 new_first = GNUNET_malloc (sizeof (struct PeerConnection));
1731 new_first->index = second;
1732 GNUNET_CONTAINER_DLL_insert(*first_list, *first_tail, new_first);
1733 pg->peers[first].num_connections++;
1739 new_second = GNUNET_malloc (sizeof (struct PeerConnection));
1740 new_second->index = first;
1741 GNUNET_CONTAINER_DLL_insert(*second_list, *second_tail, new_second);
1742 pg->peers[second].num_connections++;
1750 * Scale free network construction as described in:
1752 * "Emergence of Scaling in Random Networks." Science 286, 509-512, 1999.
1754 * Start with a network of "one" peer, then progressively add
1755 * peers up to the total number. At each step, iterate over
1756 * all possible peers and connect new peer based on number of
1757 * existing connections of the target peer.
1759 * @param pg the peer group we are dealing with
1760 * @param proc the connection processor to use
1761 * @param list the peer list to use
1763 * @return the number of connections created
1766 create_scale_free(struct GNUNET_TESTING_PeerGroup *pg,
1767 GNUNET_TESTING_ConnectionProcessor proc, enum PeerLists list)
1770 unsigned int total_connections;
1771 unsigned int outer_count;
1773 unsigned int previous_total_connections;
1777 GNUNET_assert (pg->total > 1);
1779 /* Add a connection between the first two nodes */
1780 total_connections = proc (pg, 0, 1, list, GNUNET_YES);
1782 for (outer_count = 1; outer_count < pg->total; outer_count++)
1784 previous_total_connections = total_connections;
1785 for (i = 0; i < outer_count; i++)
1787 probability = pg->peers[i].num_connections
1788 / (double) previous_total_connections;
1790 = ((double) GNUNET_CRYPTO_random_u64 (GNUNET_CRYPTO_QUALITY_WEAK,
1792 / ((double) UINT64_MAX);
1794 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1795 "Considering connecting peer %d to peer %d\n",
1798 if (random < probability)
1801 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1802 "Connecting peer %d to peer %d\n", outer_count, i);
1804 total_connections += proc (pg, outer_count, i, list, GNUNET_YES);
1809 return total_connections;
1813 * Create a topology given a peer group (set of running peers)
1814 * and a connection processor. Creates a small world topology
1815 * according to the rewired ring construction. The basic
1816 * behavior is that a ring topology is created, but with some
1817 * probability instead of connecting a peer to the next
1818 * neighbor in the ring a connection will be created to a peer
1819 * selected uniformly at random. We use the TESTING
1820 * PERCENTAGE option to specify what number of
1821 * connections each peer should have. Default is 2,
1822 * which makes the ring, any given number is multiplied by
1823 * the log of the network size; i.e. a PERCENTAGE of 2 makes
1824 * each peer have on average 2logn connections. The additional
1825 * connections are made at increasing distance around the ring
1826 * from the original peer, or to random peers based on the re-
1827 * wiring probability. The TESTING
1828 * PROBABILITY option is used as the probability that a given
1829 * connection is rewired.
1831 * @param pg the peergroup to create the topology on
1832 * @param proc the connection processor to call to actually set
1833 * up connections between two peers
1834 * @param list the peer list to use
1836 * @return the number of connections that were set up
1840 create_small_world_ring(struct GNUNET_TESTING_PeerGroup *pg,
1841 GNUNET_TESTING_ConnectionProcessor proc,
1842 enum PeerLists list)
1846 unsigned int natLog;
1847 unsigned int randomPeer;
1848 double random, logNModifier, probability;
1849 unsigned int smallWorldConnections;
1854 unsigned int useAnd;
1855 int connect_attempts;
1857 logNModifier = 0.5; /* FIXME: default value? */
1858 if (GNUNET_OK == GNUNET_CONFIGURATION_get_value_string (pg->cfg, "TESTING",
1862 if (sscanf (p_string, "%lf", &logNModifier) != 1)
1864 GNUNET_ERROR_TYPE_WARNING,
1866 ("Invalid value `%s' for option `%s' in section `%s': expected float\n"),
1867 p_string, "LOGNMODIFIER", "TESTING");
1868 GNUNET_free (p_string);
1870 probability = 0.5; /* FIXME: default percentage? */
1871 if (GNUNET_OK == GNUNET_CONFIGURATION_get_value_string (pg->cfg, "TESTING",
1875 if (sscanf (p_string, "%lf", &probability) != 1)
1877 GNUNET_ERROR_TYPE_WARNING,
1879 ("Invalid value `%s' for option `%s' in section `%s': expected float\n"),
1880 p_string, "PERCENTAGE", "TESTING");
1881 GNUNET_free (p_string);
1883 natLog = log (pg->total);
1884 connsPerPeer = ceil (natLog * logNModifier);
1886 if (connsPerPeer % 2 == 1)
1889 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, _("Target is %d connections per peer."),
1892 smallWorldConnections = 0;
1893 connect_attempts = 0;
1894 for (i = 0; i < pg->total; i++)
1897 max = i + connsPerPeer / 2;
1898 min = i - connsPerPeer / 2;
1900 if (max > pg->total - 1)
1902 max = max - pg->total;
1908 min = pg->total - 1 + min;
1912 for (j = 0; j < connsPerPeer / 2; j++)
1915 = ((double) GNUNET_CRYPTO_random_u64 (GNUNET_CRYPTO_QUALITY_WEAK,
1917 / ((double) UINT64_MAX));
1918 if (random < probability)
1920 /* Connect to uniformly selected random peer */
1922 = GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK,
1924 while ((((randomPeer < max) && (randomPeer > min)) && (useAnd
1925 == 0)) || (((randomPeer > min) || (randomPeer < max))
1929 = GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK,
1932 smallWorldConnections += proc (pg, i, randomPeer, list,
1937 nodeToConnect = i + j + 1;
1938 if (nodeToConnect > pg->total - 1)
1940 nodeToConnect = nodeToConnect - pg->total;
1942 connect_attempts += proc (pg, i, nodeToConnect, list, GNUNET_YES);
1948 connect_attempts += smallWorldConnections;
1950 return connect_attempts;
1954 * Create a topology given a peer group (set of running peers)
1955 * and a connection processor.
1957 * @param pg the peergroup to create the topology on
1958 * @param proc the connection processor to call to actually set
1959 * up connections between two peers
1960 * @param list the peer list to use
1962 * @return the number of connections that were set up
1966 create_nated_internet(struct GNUNET_TESTING_PeerGroup *pg,
1967 GNUNET_TESTING_ConnectionProcessor proc,
1968 enum PeerLists list)
1970 unsigned int outer_count, inner_count;
1971 unsigned int cutoff;
1972 int connect_attempts;
1973 double nat_percentage;
1976 nat_percentage = 0.6; /* FIXME: default percentage? */
1977 if (GNUNET_OK == GNUNET_CONFIGURATION_get_value_string (pg->cfg, "TESTING",
1981 if (sscanf (p_string, "%lf", &nat_percentage) != 1)
1983 GNUNET_ERROR_TYPE_WARNING,
1985 ("Invalid value `%s' for option `%s' in section `%s': expected float\n"),
1986 p_string, "PERCENTAGE", "TESTING");
1987 GNUNET_free (p_string);
1990 cutoff = (unsigned int) (nat_percentage * pg->total);
1991 connect_attempts = 0;
1992 for (outer_count = 0; outer_count < pg->total - 1; outer_count++)
1994 for (inner_count = outer_count + 1; inner_count < pg->total; inner_count++)
1996 if ((outer_count > cutoff) || (inner_count > cutoff))
1999 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2000 "Connecting peer %d to peer %d\n",
2001 outer_count, inner_count);
2003 connect_attempts += proc (pg, outer_count, inner_count, list,
2008 return connect_attempts;
2013 * Create a topology given a peer group (set of running peers)
2014 * and a connection processor.
2016 * @param pg the peergroup to create the topology on
2017 * @param proc the connection processor to call to actually set
2018 * up connections between two peers
2019 * @param list the peer list to use
2021 * @return the number of connections that were set up
2025 create_nated_internet_copy(struct GNUNET_TESTING_PeerGroup *pg,
2026 GNUNET_TESTING_ConnectionProcessor proc,
2027 enum PeerLists list)
2029 unsigned int outer_count, inner_count;
2030 unsigned int cutoff;
2031 int connect_attempts;
2032 double nat_percentage;
2035 struct ProgressMeter *conn_meter;
2037 nat_percentage = 0.6; /* FIXME: default percentage? */
2038 if (GNUNET_OK == GNUNET_CONFIGURATION_get_value_string (pg->cfg, "TESTING",
2042 if (sscanf (p_string, "%lf", &nat_percentage) != 1)
2044 GNUNET_ERROR_TYPE_WARNING,
2046 ("Invalid value `%s' for option `%s' in section `%s': expected float\n"),
2047 p_string, "PERCENTAGE", "TESTING");
2048 GNUNET_free (p_string);
2051 cutoff = (unsigned int) (nat_percentage * pg->total);
2053 for (outer_count = 0; outer_count < pg->total - 1; outer_count++)
2055 for (inner_count = outer_count + 1; inner_count < pg->total; inner_count++)
2057 if ((outer_count > cutoff) || (inner_count > cutoff))
2063 conn_meter = create_meter (count, "NAT COPY", GNUNET_YES);
2064 connect_attempts = 0;
2065 for (outer_count = 0; outer_count < pg->total - 1; outer_count++)
2067 for (inner_count = outer_count + 1; inner_count < pg->total; inner_count++)
2069 if ((outer_count > cutoff) || (inner_count > cutoff))
2072 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2073 "Connecting peer %d to peer %d\n",
2074 outer_count, inner_count);
2076 connect_attempts += proc (pg, outer_count, inner_count, list,
2078 add_connections (pg, outer_count, inner_count, ALLOWED, GNUNET_NO);
2079 update_meter (conn_meter);
2083 free_meter (conn_meter);
2085 return connect_attempts;
2090 * Create a topology given a peer group (set of running peers)
2091 * and a connection processor.
2093 * @param pg the peergroup to create the topology on
2094 * @param proc the connection processor to call to actually set
2095 * up connections between two peers
2096 * @param list the peer list to use
2098 * @return the number of connections that were set up
2102 create_small_world(struct GNUNET_TESTING_PeerGroup *pg,
2103 GNUNET_TESTING_ConnectionProcessor proc, enum PeerLists list)
2105 unsigned int i, j, k;
2106 unsigned int square;
2109 unsigned int toggle = 1;
2110 unsigned int nodeToConnect;
2111 unsigned int natLog;
2112 unsigned int node1Row;
2113 unsigned int node1Col;
2114 unsigned int node2Row;
2115 unsigned int node2Col;
2116 unsigned int distance;
2117 double probability, random, percentage;
2118 unsigned int smallWorldConnections;
2119 unsigned int small_world_it;
2121 int connect_attempts;
2122 square = floor (sqrt (pg->total));
2126 percentage = 0.5; /* FIXME: default percentage? */
2127 if (GNUNET_OK == GNUNET_CONFIGURATION_get_value_string (pg->cfg, "TESTING",
2131 if (sscanf (p_string, "%lf", &percentage) != 1)
2133 GNUNET_ERROR_TYPE_WARNING,
2135 ("Invalid value `%s' for option `%s' in section `%s': expected float\n"),
2136 p_string, "PERCENTAGE", "TESTING");
2137 GNUNET_free (p_string);
2139 if (percentage < 0.0)
2142 GNUNET_ERROR_TYPE_WARNING,
2144 ("Invalid value `%s' for option `%s' in section `%s': got %f, needed value greater than 0\n"),
2145 "PERCENTAGE", "TESTING", percentage);
2148 probability = 0.5; /* FIXME: default percentage? */
2149 if (GNUNET_OK == GNUNET_CONFIGURATION_get_value_string (pg->cfg, "TESTING",
2153 if (sscanf (p_string, "%lf", &probability) != 1)
2155 GNUNET_ERROR_TYPE_WARNING,
2157 ("Invalid value `%s' for option `%s' in section `%s': expected float\n"),
2158 p_string, "PROBABILITY", "TESTING");
2159 GNUNET_free (p_string);
2161 if (square * square != pg->total)
2163 while (rows * cols < pg->total)
2165 if (toggle % 2 == 0)
2174 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2176 ("Connecting nodes in 2d torus topology: %u rows %u columns\n"),
2180 connect_attempts = 0;
2181 /* Rows and columns are all sorted out, now iterate over all nodes and connect each
2182 * to the node to its right and above. Once this is over, we'll have our torus!
2183 * Special case for the last node (if the rows and columns are not equal), connect
2184 * to the first in the row to maintain topology.
2186 for (i = 0; i < pg->total; i++)
2188 /* First connect to the node to the right */
2189 if (((i + 1) % cols != 0) && (i + 1 != pg->total))
2190 nodeToConnect = i + 1;
2191 else if (i + 1 == pg->total)
2192 nodeToConnect = rows * cols - cols;
2194 nodeToConnect = i - cols + 1;
2196 connect_attempts += proc (pg, i, nodeToConnect, list, GNUNET_YES);
2200 nodeToConnect = (rows * cols) - cols + i;
2201 if (nodeToConnect >= pg->total)
2202 nodeToConnect -= cols;
2205 nodeToConnect = i - cols;
2207 if (nodeToConnect < pg->total)
2208 connect_attempts += proc (pg, i, nodeToConnect, list, GNUNET_YES);
2210 natLog = log (pg->total);
2211 #if VERBOSE_TESTING > 2
2212 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2213 _("natural log of %d is %d, will run %d iterations\n"),
2214 pg->total, natLog, (int) (natLog * percentage));
2215 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2216 _("Total connections added thus far: %u!\n"), connect_attempts);
2218 smallWorldConnections = 0;
2219 small_world_it = (unsigned int) (natLog * percentage);
2220 if (small_world_it < 1)
2222 GNUNET_assert (small_world_it > 0 && small_world_it < (unsigned int) -1);
2223 for (i = 0; i < small_world_it; i++)
2225 for (j = 0; j < pg->total; j++)
2227 /* Determine the row and column of node at position j on the 2d torus */
2228 node1Row = j / cols;
2229 node1Col = j - (node1Row * cols);
2230 for (k = 0; k < pg->total; k++)
2232 /* Determine the row and column of node at position k on the 2d torus */
2233 node2Row = k / cols;
2234 node2Col = k - (node2Row * cols);
2235 /* Simple Cartesian distance */
2236 distance = abs (node1Row - node2Row) + abs (node1Col - node2Col);
2239 /* Calculate probability as 1 over the square of the distance */
2240 probability = 1.0 / (distance * distance);
2241 /* Choose a random value between 0 and 1 */
2243 = ((double) GNUNET_CRYPTO_random_u64 (
2244 GNUNET_CRYPTO_QUALITY_WEAK,
2246 / ((double) UINT64_MAX);
2247 /* If random < probability, then connect the two nodes */
2248 if (random < probability)
2249 smallWorldConnections += proc (pg, j, k, list, GNUNET_YES);
2255 connect_attempts += smallWorldConnections;
2256 #if VERBOSE_TESTING > 2
2257 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2258 _("Total connections added for small world: %d!\n"),
2259 smallWorldConnections);
2261 return connect_attempts;
2265 * Create a topology given a peer group (set of running peers)
2266 * and a connection processor.
2268 * @param pg the peergroup to create the topology on
2269 * @param proc the connection processor to call to actually set
2270 * up connections between two peers
2271 * @param list the peer list to use
2273 * @return the number of connections that were set up
2277 create_erdos_renyi(struct GNUNET_TESTING_PeerGroup *pg,
2278 GNUNET_TESTING_ConnectionProcessor proc, enum PeerLists list)
2281 unsigned int outer_count;
2282 unsigned int inner_count;
2283 int connect_attempts;
2287 probability = 0.5; /* FIXME: default percentage? */
2288 if (GNUNET_OK == GNUNET_CONFIGURATION_get_value_string (pg->cfg, "TESTING",
2292 if (sscanf (p_string, "%lf", &probability) != 1)
2294 GNUNET_ERROR_TYPE_WARNING,
2296 ("Invalid value `%s' for option `%s' in section `%s': expected float\n"),
2297 p_string, "PROBABILITY", "TESTING");
2298 GNUNET_free (p_string);
2300 connect_attempts = 0;
2301 for (outer_count = 0; outer_count < pg->total - 1; outer_count++)
2303 for (inner_count = outer_count + 1; inner_count < pg->total; inner_count++)
2306 = ((double) GNUNET_CRYPTO_random_u64 (GNUNET_CRYPTO_QUALITY_WEAK,
2308 / ((double) UINT64_MAX);
2310 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2311 _("rand is %f probability is %f\n"), temp_rand,
2314 if (temp_rand < probability)
2316 connect_attempts += proc (pg, outer_count, inner_count, list,
2322 return connect_attempts;
2326 * Create a topology given a peer group (set of running peers)
2327 * and a connection processor. This particular function creates
2328 * the connections for a 2d-torus, plus additional "closest"
2329 * connections per peer.
2331 * @param pg the peergroup to create the topology on
2332 * @param proc the connection processor to call to actually set
2333 * up connections between two peers
2334 * @param list the peer list to use
2336 * @return the number of connections that were set up
2340 create_2d_torus(struct GNUNET_TESTING_PeerGroup *pg,
2341 GNUNET_TESTING_ConnectionProcessor proc, enum PeerLists list)
2344 unsigned int square;
2347 unsigned int toggle = 1;
2348 unsigned int nodeToConnect;
2349 int connect_attempts;
2351 connect_attempts = 0;
2353 square = floor (sqrt (pg->total));
2357 if (square * square != pg->total)
2359 while (rows * cols < pg->total)
2361 if (toggle % 2 == 0)
2370 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2372 ("Connecting nodes in 2d torus topology: %u rows %u columns\n"),
2375 /* Rows and columns are all sorted out, now iterate over all nodes and connect each
2376 * to the node to its right and above. Once this is over, we'll have our torus!
2377 * Special case for the last node (if the rows and columns are not equal), connect
2378 * to the first in the row to maintain topology.
2380 for (i = 0; i < pg->total; i++)
2382 /* First connect to the node to the right */
2383 if (((i + 1) % cols != 0) && (i + 1 != pg->total))
2384 nodeToConnect = i + 1;
2385 else if (i + 1 == pg->total)
2386 nodeToConnect = rows * cols - cols;
2388 nodeToConnect = i - cols + 1;
2390 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2391 "Connecting peer %d to peer %d\n", i, nodeToConnect);
2393 connect_attempts += proc (pg, i, nodeToConnect, list, GNUNET_YES);
2395 /* Second connect to the node immediately above */
2398 nodeToConnect = (rows * cols) - cols + i;
2399 if (nodeToConnect >= pg->total)
2400 nodeToConnect -= cols;
2403 nodeToConnect = i - cols;
2405 if (nodeToConnect < pg->total)
2408 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2409 "Connecting peer %d to peer %d\n", i, nodeToConnect);
2411 connect_attempts += proc (pg, i, nodeToConnect, list, GNUNET_YES);
2416 return connect_attempts;
2420 * Create a topology given a peer group (set of running peers)
2421 * and a connection processor.
2423 * @param pg the peergroup to create the topology on
2424 * @param proc the connection processor to call to actually set
2425 * up connections between two peers
2426 * @param list the peer list to use
2427 * @param check does the connection processor need to check before
2428 * performing an action on the list?
2430 * @return the number of connections that were set up
2434 create_clique(struct GNUNET_TESTING_PeerGroup *pg,
2435 GNUNET_TESTING_ConnectionProcessor proc, enum PeerLists list,
2438 unsigned int outer_count;
2439 unsigned int inner_count;
2440 int connect_attempts;
2441 struct ProgressMeter *conn_meter;
2442 connect_attempts = 0;
2444 conn_meter = create_meter ((((pg->total * pg->total) + pg->total) / 2)
2445 - pg->total, "Create Clique ", GNUNET_NO);
2446 for (outer_count = 0; outer_count < pg->total - 1; outer_count++)
2448 for (inner_count = outer_count + 1; inner_count < pg->total; inner_count++)
2451 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2452 "Connecting peer %d to peer %d\n",
2453 outer_count, inner_count);
2455 connect_attempts += proc (pg, outer_count, inner_count, list, check);
2456 update_meter (conn_meter);
2459 reset_meter (conn_meter);
2460 free_meter (conn_meter);
2461 return connect_attempts;
2466 * Iterator over hash map entries.
2468 * @param cls closure the peer group
2469 * @param key the key stored in the hashmap is the
2470 * index of the peer to connect to
2471 * @param value value in the hash map, handle to the peer daemon
2472 * @return GNUNET_YES if we should continue to
2477 unblacklist_iterator (void *cls,
2478 const GNUNET_HashCode * key,
2481 struct UnblacklistContext *un_ctx = cls;
2482 uint32_t second_pos;
2484 uid_from_hash (key, &second_pos);
2486 unblacklist_connections(un_ctx->pg, un_ctx->first_uid, second_pos);
2494 * Create a blacklist topology based on the allowed topology
2495 * which disallows any connections not in the allowed topology
2496 * at the transport level.
2498 * @param pg the peergroup to create the topology on
2499 * @param proc the connection processor to call to allow
2500 * up connections between two peers
2502 * @return the number of connections that were set up
2506 copy_allowed (struct GNUNET_TESTING_PeerGroup *pg,
2507 GNUNET_TESTING_ConnectionProcessor proc)
2511 struct PeerConnection *iter;
2513 struct UnblacklistContext un_ctx;
2518 for (count = 0; count < pg->total - 1; count++)
2521 iter = pg->peers[count].allowed_peers_head;
2522 while (iter != NULL)
2524 remove_connections (pg, count, iter->index, BLACKLIST, GNUNET_YES);
2525 //unblacklist_connections(pg, count, iter->index);
2529 un_ctx.first_uid = count;
2530 total += GNUNET_CONTAINER_multihashmap_iterate(pg->peers[count].allowed_peers,
2531 &unblacklist_iterator,
2535 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2536 "Unblacklisted %u peers\n",
2543 * Create a topology given a peer group (set of running peers)
2544 * and a connection processor.
2546 * @param pg the peergroup to create the topology on
2547 * @param proc the connection processor to call to actually set
2548 * up connections between two peers
2549 * @param list which list should be modified
2551 * @return the number of connections that were set up
2555 create_line(struct GNUNET_TESTING_PeerGroup *pg,
2556 GNUNET_TESTING_ConnectionProcessor proc, enum PeerLists list)
2559 unsigned int connect_attempts;
2561 connect_attempts = 0;
2562 /* Connect each peer to the next highest numbered peer */
2563 for (count = 0; count < pg->total - 1; count++)
2566 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2567 "Connecting peer %d to peer %d\n",
2570 connect_attempts += proc (pg, count, count + 1, list, GNUNET_YES);
2573 return connect_attempts;
2577 * Create a topology given a peer group (set of running peers)
2578 * and a connection processor.
2580 * @param pg the peergroup to create the topology on
2581 * @param filename the file to read topology information from
2582 * @param proc the connection processor to call to actually set
2583 * up connections between two peers
2584 * @param list the peer list to use
2586 * @return the number of connections that were set up
2590 create_from_file(struct GNUNET_TESTING_PeerGroup *pg, char *filename,
2591 GNUNET_TESTING_ConnectionProcessor proc, enum PeerLists list)
2593 int connect_attempts;
2594 unsigned int first_peer_index;
2595 unsigned int second_peer_index;
2600 unsigned int total_peers;
2601 enum States curr_state;
2603 connect_attempts = 0;
2604 if (GNUNET_OK != GNUNET_DISK_file_test (filename))
2605 GNUNET_DISK_fn_write (filename, NULL, 0, GNUNET_DISK_PERM_USER_READ);
2607 if ((0 != STAT (filename, &frstat)) || (frstat.st_size == 0))
2609 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
2610 "Could not open file `%s' specified for topology!", filename);
2611 return connect_attempts;
2614 data = GNUNET_malloc_large (frstat.st_size);
2615 GNUNET_assert(data != NULL);
2616 if (frstat.st_size != GNUNET_DISK_fn_read (filename, data, frstat.st_size))
2619 GNUNET_ERROR_TYPE_ERROR,
2620 "Could not read file %s specified for host list, ending test!",
2623 return connect_attempts;
2628 first_peer_index = 0;
2629 /* First line should contain a single integer, specifying the number of peers */
2630 /* Each subsequent line should contain this format PEER_INDEX:OTHER_PEER_INDEX[,...] */
2631 curr_state = NUM_PEERS;
2632 while (count < frstat.st_size - 1)
2634 if ((buf[count] == '\n') || (buf[count] == ' '))
2644 total_peers = strtoul(&buf[count], NULL, 10);
2647 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2648 "Failed to read number of peers from topology file!\n");
2650 return connect_attempts;
2652 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2653 "Read %u total peers in topology\n", total_peers);
2654 GNUNET_assert(total_peers == pg->total);
2655 curr_state = PEER_INDEX;
2656 while ((buf[count] != '\n') && (count < frstat.st_size - 1))
2662 first_peer_index = strtoul(&buf[count], NULL, 10);
2665 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2666 "Failed to read peer index from topology file!\n");
2668 return connect_attempts;
2670 while ((buf[count] != ':') && (count < frstat.st_size - 1))
2673 curr_state = OTHER_PEER_INDEX;
2676 if (1 == sscanf (&buf[count], ":"))
2677 curr_state = OTHER_PEER_INDEX;
2680 case OTHER_PEER_INDEX:
2682 second_peer_index = strtoul(&buf[count], NULL, 10);
2685 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2686 "Failed to peer index from topology file!\n");
2688 return connect_attempts;
2690 /* Assume file is written with first peer 1, but array index is 0 */
2691 connect_attempts += proc (pg, first_peer_index - 1, second_peer_index
2692 - 1, list, GNUNET_YES);
2693 while ((buf[count] != '\n') && (buf[count] != ',') && (count
2694 < frstat.st_size - 1))
2696 if (buf[count] == '\n')
2698 curr_state = PEER_INDEX;
2700 else if (buf[count] != ',')
2702 curr_state = OTHER_PEER_INDEX;
2707 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
2708 "Found bad data in topology file while in state %d!\n",
2712 return connect_attempts;
2716 return connect_attempts;
2720 * Create a topology given a peer group (set of running peers)
2721 * and a connection processor.
2723 * @param pg the peergroup to create the topology on
2724 * @param proc the connection processor to call to actually set
2725 * up connections between two peers
2726 * @param list the peer list to use
2728 * @return the number of connections that were set up
2732 create_ring(struct GNUNET_TESTING_PeerGroup *pg,
2733 GNUNET_TESTING_ConnectionProcessor proc, enum PeerLists list)
2736 int connect_attempts;
2738 connect_attempts = 0;
2740 /* Connect each peer to the next highest numbered peer */
2741 for (count = 0; count < pg->total - 1; count++)
2744 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2745 "Connecting peer %d to peer %d\n", count, count + 1);
2747 connect_attempts += proc (pg, count, count + 1, list, GNUNET_YES);
2750 /* Connect the last peer to the first peer */
2751 connect_attempts += proc (pg, pg->total - 1, 0, list, GNUNET_YES);
2753 return connect_attempts;
2758 * Iterator for writing friends of a peer to a file.
2760 * @param cls closure, an open writable file handle
2761 * @param key the key the daemon was stored under
2762 * @param value the GNUNET_TESTING_Daemon that needs to be written.
2764 * @return GNUNET_YES to continue iteration
2766 * TODO: Could replace friend_file_iterator and blacklist_file_iterator
2767 * with a single file_iterator that takes a closure which contains
2768 * the prefix to write before the peer. Then this could be used
2769 * for blacklisting multiple transports and writing the friend
2770 * file. I'm sure *someone* will complain loudly about other
2771 * things that negate these functions even existing so no point in
2775 friend_file_iterator (void *cls, const GNUNET_HashCode * key, void *value)
2777 FILE *temp_friend_handle = cls;
2778 struct GNUNET_TESTING_Daemon *peer = value;
2779 struct GNUNET_PeerIdentity *temppeer;
2780 struct GNUNET_CRYPTO_HashAsciiEncoded peer_enc;
2782 temppeer = &peer->id;
2783 GNUNET_CRYPTO_hash_to_enc (&temppeer->hashPubKey, &peer_enc);
2784 fprintf (temp_friend_handle, "%s\n", (char *) &peer_enc);
2789 struct BlacklistContext
2792 * The (open) file handle to write to
2794 FILE *temp_file_handle;
2797 * The transport that this peer will be blacklisted on.
2803 * Iterator for writing blacklist data to appropriate files.
2805 * @param cls closure, an open writable file handle
2806 * @param key the key the daemon was stored under
2807 * @param value the GNUNET_TESTING_Daemon that needs to be written.
2809 * @return GNUNET_YES to continue iteration
2812 blacklist_file_iterator (void *cls, const GNUNET_HashCode * key, void *value)
2814 struct BlacklistContext *blacklist_ctx = cls;
2815 struct GNUNET_TESTING_Daemon *peer = value;
2816 struct GNUNET_PeerIdentity *temppeer;
2817 struct GNUNET_CRYPTO_HashAsciiEncoded peer_enc;
2819 temppeer = &peer->id;
2820 GNUNET_CRYPTO_hash_to_enc (&temppeer->hashPubKey, &peer_enc);
2821 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Writing entry %s:%s to file\n", blacklist_ctx->transport, (char *) &peer_enc);
2822 fprintf (blacklist_ctx->temp_file_handle, "%s:%s\n",
2823 blacklist_ctx->transport, (char *) &peer_enc);
2830 * Create the friend files based on the PeerConnection's
2831 * of each peer in the peer group, and copy the files
2832 * to the appropriate place
2834 * @param pg the peer group we are dealing with
2837 create_and_copy_friend_files(struct GNUNET_TESTING_PeerGroup *pg)
2839 FILE *temp_friend_handle;
2840 unsigned int pg_iter;
2841 char *temp_service_path;
2842 struct GNUNET_OS_Process **procarr;
2846 enum GNUNET_OS_ProcessStatusType type;
2847 unsigned long return_code;
2855 struct GNUNET_CRYPTO_HashAsciiEncoded peer_enc;
2856 struct PeerConnection *conn_iter;
2858 procarr = GNUNET_malloc (sizeof (struct GNUNET_OS_Process *) * pg->total);
2859 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
2861 mytemp = GNUNET_DISK_mktemp ("friends");
2862 GNUNET_assert (mytemp != NULL);
2863 temp_friend_handle = fopen (mytemp, "wt");
2864 GNUNET_assert (temp_friend_handle != NULL);
2866 conn_iter = pg->peers[pg_iter].allowed_peers_head;
2867 while (conn_iter != NULL)
2869 GNUNET_CRYPTO_hash_to_enc (
2870 &pg->peers[conn_iter->index].daemon->id.hashPubKey,
2872 fprintf (temp_friend_handle, "%s\n", (char *) &peer_enc);
2873 conn_iter = conn_iter->next;
2876 GNUNET_CONTAINER_multihashmap_iterate (pg->peers[pg_iter].allowed_peers,
2877 &friend_file_iterator,
2878 temp_friend_handle);
2880 fclose (temp_friend_handle);
2883 != GNUNET_CONFIGURATION_get_value_string (pg->peers[pg_iter].
2885 "PATHS", "SERVICEHOME",
2886 &temp_service_path))
2888 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2889 _("No `%s' specified in peer configuration in section `%s', cannot copy friends file!\n"),
2890 "SERVICEHOME", "PATHS");
2891 if (UNLINK (mytemp) != 0)
2892 GNUNET_log_strerror_file (GNUNET_ERROR_TYPE_WARNING,
2895 GNUNET_free (mytemp);
2899 if (pg->peers[pg_iter].daemon->hostname == NULL) /* Local, just copy the file */
2901 GNUNET_asprintf (&arg, "%s/friends", temp_service_path);
2902 procarr[pg_iter] = GNUNET_OS_start_process (NULL, NULL, "mv", "mv",
2904 GNUNET_assert(procarr[pg_iter] != NULL);
2906 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2907 "Copying file with command cp %s %s\n",
2911 ret = GNUNET_OS_process_wait (procarr[pg_iter]); /* FIXME: schedule this, throttle! */
2912 GNUNET_OS_process_close (procarr[pg_iter]);
2915 else /* Remote, scp the file to the correct place */
2917 if (NULL != pg->peers[pg_iter].daemon->username)
2918 GNUNET_asprintf (&arg, "%s@%s:%s/friends",
2919 pg->peers[pg_iter].daemon->username,
2920 pg->peers[pg_iter].daemon->hostname,
2923 GNUNET_asprintf (&arg, "%s:%s/friends",
2924 pg->peers[pg_iter].daemon->hostname,
2926 procarr[pg_iter] = GNUNET_OS_start_process (NULL, NULL, "scp", "scp",
2928 GNUNET_assert(procarr[pg_iter] != NULL);
2929 ret = GNUNET_OS_process_wait (procarr[pg_iter]); /* FIXME: schedule this, throttle! */
2930 GNUNET_OS_process_close (procarr[pg_iter]);
2931 if (ret != GNUNET_OK)
2933 /* FIXME: free contents of 'procarr' array */
2934 GNUNET_free (procarr);
2935 GNUNET_free (temp_service_path);
2936 GNUNET_free (mytemp);
2940 procarr[pg_iter] = NULL;
2942 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2943 "Copying file with command scp %s %s\n",
2949 GNUNET_free (temp_service_path);
2950 GNUNET_free (mytemp);
2955 ret = GNUNET_SYSERR;
2956 while ((count < max_wait) && (ret != GNUNET_OK))
2959 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
2962 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2963 "Checking copy status of file %d\n",
2966 if (procarr[pg_iter] != NULL) /* Check for already completed! */
2968 if (GNUNET_OS_process_status
2969 (procarr[pg_iter], &type, &return_code) != GNUNET_OK)
2971 ret = GNUNET_SYSERR;
2973 else if ((type != GNUNET_OS_PROCESS_EXITED)
2974 || (return_code != 0))
2976 ret = GNUNET_SYSERR;
2980 GNUNET_OS_process_close (procarr[pg_iter]);
2981 procarr[pg_iter] = NULL;
2983 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2991 if (ret == GNUNET_SYSERR)
2993 /* FIXME: why sleep here? -CG */
2999 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
3000 _("Finished copying all friend files!\n"));
3003 GNUNET_free (procarr);
3008 * Create the blacklist files based on the PeerConnection's
3009 * of each peer in the peer group, and copy the files
3010 * to the appropriate place.
3012 * @param pg the peer group we are dealing with
3013 * @param transports space delimited list of transports to blacklist
3016 create_and_copy_blacklist_files(struct GNUNET_TESTING_PeerGroup *pg,
3017 const char *transports)
3019 FILE *temp_file_handle;
3020 unsigned int pg_iter;
3021 char *temp_service_path;
3022 struct GNUNET_OS_Process **procarr;
3025 enum GNUNET_OS_ProcessStatusType type;
3026 unsigned long return_code;
3033 char *temp_transports;
3035 struct GNUNET_CRYPTO_HashAsciiEncoded peer_enc;
3036 struct PeerConnection *conn_iter;
3038 static struct BlacklistContext blacklist_ctx;
3041 procarr = GNUNET_malloc (sizeof (struct GNUNET_OS_Process *) * pg->total);
3042 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
3044 mytemp = GNUNET_DISK_mktemp ("blacklist");
3045 GNUNET_assert (mytemp != NULL);
3046 temp_file_handle = fopen (mytemp, "wt");
3047 GNUNET_assert (temp_file_handle != NULL);
3048 temp_transports = GNUNET_strdup (transports);
3050 blacklist_ctx.temp_file_handle = temp_file_handle;
3052 transport_len = strlen (temp_transports) + 1;
3055 for (i = 0; i < transport_len; i++)
3057 if ((temp_transports[i] == ' ') && (pos == NULL))
3058 continue; /* At start of string (whitespace) */
3059 else if ((temp_transports[i] == ' ') || (temp_transports[i] == '\0')) /* At end of string */
3061 temp_transports[i] = '\0';
3063 conn_iter = pg->peers[pg_iter].blacklisted_peers_head;
3064 while (conn_iter != NULL)
3066 GNUNET_CRYPTO_hash_to_enc (
3067 &pg->peers[conn_iter->index].daemon->id.hashPubKey,
3069 fprintf (temp_file_handle, "%s:%s\n", pos, (char *) &peer_enc);
3070 conn_iter = conn_iter->next;
3073 blacklist_ctx.transport = pos;
3074 (void) GNUNET_CONTAINER_multihashmap_iterate (pg->
3076 [pg_iter].blacklisted_peers,
3077 &blacklist_file_iterator,
3081 } /* At beginning of actual string */
3082 else if (pos == NULL)
3084 pos = &temp_transports[i];
3088 GNUNET_free (temp_transports);
3089 fclose (temp_file_handle);
3092 != GNUNET_CONFIGURATION_get_value_string (
3093 pg->peers[pg_iter]. daemon->cfg,
3094 "PATHS", "SERVICEHOME",
3095 &temp_service_path))
3098 GNUNET_ERROR_TYPE_WARNING,
3100 ("No `%s' specified in peer configuration in section `%s', cannot copy friends file!\n"),
3101 "SERVICEHOME", "PATHS");
3102 if (UNLINK (mytemp) != 0)
3103 GNUNET_log_strerror_file (GNUNET_ERROR_TYPE_WARNING, "unlink",
3105 GNUNET_free (mytemp);
3109 if (pg->peers[pg_iter].daemon->hostname == NULL) /* Local, just copy the file */
3111 GNUNET_asprintf (&arg, "%s/blacklist", temp_service_path);
3112 procarr[pg_iter] = GNUNET_OS_start_process (NULL, NULL, "mv", "mv",
3115 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
3116 _("Copying file with command cp %s %s\n"), mytemp, arg);
3121 else /* Remote, scp the file to the correct place */
3123 if (NULL != pg->peers[pg_iter].daemon->username)
3124 GNUNET_asprintf (&arg, "%s@%s:%s/blacklist",
3125 pg->peers[pg_iter].daemon->username,
3126 pg->peers[pg_iter].daemon->hostname,
3129 GNUNET_asprintf (&arg, "%s:%s/blacklist",
3130 pg->peers[pg_iter].daemon->hostname,
3132 procarr[pg_iter] = GNUNET_OS_start_process (NULL, NULL, "scp", "scp",
3134 GNUNET_assert(procarr[pg_iter] != NULL);
3135 GNUNET_OS_process_wait (procarr[pg_iter]); /* FIXME: add scheduled blacklist file copy that parallelizes file copying! */
3138 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
3139 _("Copying file with command scp %s %s\n"), mytemp,
3144 GNUNET_free (temp_service_path);
3145 GNUNET_free (mytemp);
3149 ret = GNUNET_SYSERR;
3150 while ((count < max_wait) && (ret != GNUNET_OK))
3153 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
3156 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
3157 _("Checking copy status of file %d\n"), pg_iter);
3159 if (procarr[pg_iter] != NULL) /* Check for already completed! */
3161 if (GNUNET_OS_process_status (procarr[pg_iter], &type,
3162 &return_code) != GNUNET_OK)
3164 ret = GNUNET_SYSERR;
3166 else if ((type != GNUNET_OS_PROCESS_EXITED) || (return_code != 0))
3168 ret = GNUNET_SYSERR;
3172 GNUNET_OS_process_close (procarr[pg_iter]);
3173 procarr[pg_iter] = NULL;
3175 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
3176 _("File %d copied\n"), pg_iter);
3182 if (ret == GNUNET_SYSERR)
3184 /* FIXME: why sleep here? -CG */
3190 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
3191 _("Finished copying all blacklist files!\n"));
3193 GNUNET_free (procarr);
3197 /* Forward Declaration */
3199 schedule_connect(void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc);
3202 * Choose a random peer's next connection to create, and
3203 * call schedule_connect to set up the connect task.
3205 * @param ct_ctx the overall connection context
3208 preschedule_connect(struct GNUNET_TESTING_PeerGroup *pg)
3210 struct ConnectTopologyContext *ct_ctx = &pg->ct_ctx;
3211 struct PeerConnection *connection_iter;
3212 struct ConnectContext *connect_context;
3213 uint32_t random_peer;
3215 if (ct_ctx->remaining_connections == 0)
3218 = GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK, pg->total);
3219 while (pg->peers[random_peer].connect_peers_head == NULL)
3220 random_peer = GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK,
3223 connection_iter = pg->peers[random_peer].connect_peers_head;
3224 connect_context = GNUNET_malloc (sizeof (struct ConnectContext));
3225 connect_context->first_index = random_peer;
3226 connect_context->second_index = connection_iter->index;
3227 connect_context->ct_ctx = ct_ctx;
3228 GNUNET_SCHEDULER_add_now (&schedule_connect, connect_context);
3229 GNUNET_CONTAINER_DLL_remove(pg->peers[random_peer].connect_peers_head, pg->peers[random_peer].connect_peers_tail, connection_iter);
3230 GNUNET_free(connection_iter);
3231 ct_ctx->remaining_connections--;
3235 /* Forward declaration */
3236 static void schedule_send_hellos (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc);
3239 * Close connections and free the hello context.
3241 * @param cls the 'struct SendHelloContext *'
3242 * @param tc scheduler context
3245 free_hello_context (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
3247 struct SendHelloContext *send_hello_context = cls;
3248 if (send_hello_context->peer->daemon->server != NULL)
3250 GNUNET_CORE_disconnect(send_hello_context->peer->daemon->server);
3251 send_hello_context->peer->daemon->server = NULL;
3253 if (send_hello_context->peer->daemon->th != NULL)
3255 GNUNET_TRANSPORT_disconnect(send_hello_context->peer->daemon->th);
3256 send_hello_context->peer->daemon->th = NULL;
3258 if (send_hello_context->core_connect_task != GNUNET_SCHEDULER_NO_TASK)
3260 GNUNET_SCHEDULER_cancel(send_hello_context->core_connect_task);
3261 send_hello_context->core_connect_task = GNUNET_SCHEDULER_NO_TASK;
3263 send_hello_context->pg->outstanding_connects--;
3264 GNUNET_free(send_hello_context);
3268 * For peers that haven't yet connected, notify
3269 * the caller that they have failed (timeout).
3271 * @param cls the 'struct SendHelloContext *'
3272 * @param tc scheduler context
3275 notify_remaining_connections_failed (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
3277 struct SendHelloContext *send_hello_context = cls;
3278 struct GNUNET_TESTING_PeerGroup *pg = send_hello_context->pg;
3279 struct PeerConnection *connection;
3281 GNUNET_CORE_disconnect(send_hello_context->peer->daemon->server);
3282 send_hello_context->peer->daemon->server = NULL;
3284 connection = send_hello_context->peer->connect_peers_head;
3286 while (connection != NULL)
3288 if (pg->notify_connection != NULL)
3290 pg->notify_connection(pg->notify_connection_cls,
3291 &send_hello_context->peer->daemon->id,
3292 &pg->peers[connection->index].daemon->id,
3294 send_hello_context->peer->daemon->cfg,
3295 pg->peers[connection->index].daemon->cfg,
3296 send_hello_context->peer->daemon,
3297 pg->peers[connection->index].daemon,
3298 "Peers failed to connect (timeout)");
3300 GNUNET_CONTAINER_DLL_remove(send_hello_context->peer->connect_peers_head, send_hello_context->peer->connect_peers_tail, connection);
3301 GNUNET_free(connection);
3302 connection = connection->next;
3304 GNUNET_SCHEDULER_add_now(&free_hello_context, send_hello_context);
3306 other_peer = &pg->peers[connection->index];
3311 * For peers that haven't yet connected, send
3312 * CORE connect requests.
3314 * @param cls the 'struct SendHelloContext *'
3315 * @param tc scheduler context
3318 send_core_connect_requests (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
3320 struct SendHelloContext *send_hello_context = cls;
3321 struct PeerConnection *conn;
3322 GNUNET_assert(send_hello_context->peer->daemon->server != NULL);
3324 send_hello_context->core_connect_task = GNUNET_SCHEDULER_NO_TASK;
3326 send_hello_context->connect_attempts++;
3327 if (send_hello_context->connect_attempts < send_hello_context->pg->ct_ctx.connect_attempts)
3329 conn = send_hello_context->peer->connect_peers_head;
3330 while (conn != NULL)
3332 GNUNET_CORE_peer_request_connect(send_hello_context->peer->daemon->server,
3333 &send_hello_context->pg->peers[conn->index].daemon->id,
3338 send_hello_context->core_connect_task = GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_divide(send_hello_context->pg->ct_ctx.connect_timeout, send_hello_context->pg->ct_ctx.connect_attempts) ,
3339 &send_core_connect_requests,
3340 send_hello_context);
3344 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Timeout before all connections created, marking rest as failed!\n");
3345 GNUNET_SCHEDULER_add_now(¬ify_remaining_connections_failed, send_hello_context);
3351 * Success, connection is up. Signal client our success.
3353 * @param cls our "struct SendHelloContext"
3354 * @param peer identity of the peer that has connected
3355 * @param atsi performance information
3357 * FIXME: remove peers from BOTH lists, call notify twice, should
3358 * double the speed of connections as long as the list iteration
3359 * doesn't take too long!
3362 core_connect_notify (void *cls,
3363 const struct GNUNET_PeerIdentity *peer,
3364 const struct GNUNET_TRANSPORT_ATS_Information *atsi)
3366 struct SendHelloContext *send_hello_context = cls;
3367 struct PeerConnection *connection;
3368 struct GNUNET_TESTING_PeerGroup *pg = send_hello_context->pg;
3370 struct PeerData *other_peer;
3373 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
3374 "Connected peer %s to peer %s\n",
3375 ctx->d1->shortname, GNUNET_i2s(peer));
3378 if (0 == memcmp(&send_hello_context->peer->daemon->id, peer, sizeof(struct GNUNET_PeerIdentity)))
3381 connection = send_hello_context->peer->connect_peers_head;
3386 while ((connection != NULL) &&
3387 (0 != memcmp(&pg->peers[connection->index].daemon->id, peer, sizeof(struct GNUNET_PeerIdentity))))
3389 connection = connection->next;
3392 if (connection == NULL)
3394 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Connected peer %s to %s, not in list (no problem(?))\n", GNUNET_i2s(peer), send_hello_context->peer->daemon->shortname);
3399 other_peer = &pg->peers[connection->index];
3401 if (pg->notify_connection != NULL)
3403 pg->notify_connection(pg->notify_connection_cls,
3404 &send_hello_context->peer->daemon->id,
3407 send_hello_context->peer->daemon->cfg,
3408 pg->peers[connection->index].daemon->cfg,
3409 send_hello_context->peer->daemon,
3410 pg->peers[connection->index].daemon,
3413 GNUNET_CONTAINER_DLL_remove(send_hello_context->peer->connect_peers_head, send_hello_context->peer->connect_peers_tail, connection);
3414 GNUNET_free(connection);
3418 /* Notify of reverse connection and remove from other peers list of outstanding */
3419 if (other_peer != NULL)
3421 connection = other_peer->connect_peers_head;
3422 while ((connection != NULL) &&
3423 (0 != memcmp(&send_hello_context->peer->daemon->id, &pg->peers[connection->index].daemon->id, sizeof(struct GNUNET_PeerIdentity))))
3425 connection = connection->next;
3427 if (connection != NULL)
3429 if (pg->notify_connection != NULL)
3431 pg->notify_connection(pg->notify_connection_cls,
3433 &send_hello_context->peer->daemon->id,
3435 pg->peers[connection->index].daemon->cfg,
3436 send_hello_context->peer->daemon->cfg,
3437 pg->peers[connection->index].daemon,
3438 send_hello_context->peer->daemon,
3442 GNUNET_CONTAINER_DLL_remove(other_peer->connect_peers_head, other_peer->connect_peers_tail, connection);
3443 GNUNET_free(connection);
3448 if (send_hello_context->peer->connect_peers_head == NULL)
3450 GNUNET_SCHEDULER_add_now(&free_hello_context, send_hello_context);
3455 * Notify of a successful connection to the core service.
3457 * @param cls a struct SendHelloContext *
3458 * @param server handle to the core service
3459 * @param my_identity the peer identity of this peer
3460 * @param publicKey the public key of the peer
3463 core_init (void *cls,
3464 struct GNUNET_CORE_Handle * server,
3465 const struct GNUNET_PeerIdentity *
3468 GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded *
3471 struct SendHelloContext *send_hello_context = cls;
3472 send_hello_context->core_ready = GNUNET_YES;
3476 * Function called once a hello has been sent
3477 * to the transport, move on to the next one
3478 * or go away forever.
3480 * @param cls the 'struct SendHelloContext *'
3481 * @param tc scheduler context
3484 hello_sent_callback (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
3486 struct SendHelloContext *send_hello_context = cls;
3487 //unsigned int pg_iter;
3488 if ( (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN) != 0)
3490 GNUNET_free(send_hello_context);
3494 send_hello_context->pg->remaining_hellos--;
3496 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Sent HELLO, have %d remaining!\n", send_hello_context->pg->remaining_hellos);
3498 if (send_hello_context->peer_pos == NULL) /* All HELLOs (for this peer!) have been transmitted! */
3501 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "All hellos for this peer sent, disconnecting transport!\n");
3503 GNUNET_assert(send_hello_context->peer->daemon->th != NULL);
3504 GNUNET_TRANSPORT_disconnect(send_hello_context->peer->daemon->th);
3505 send_hello_context->peer->daemon->th = NULL;
3507 /*if (send_hello_context->pg->remaining_hellos == 0)
3509 for (pg_iter = 0; pg_iter < send_hello_context->pg->max_outstanding_connections; pg_iter++)
3511 preschedule_connect(&send_hello_context->pg->ct_ctx);
3515 GNUNET_assert (send_hello_context->peer->daemon->server == NULL);
3516 send_hello_context->peer->daemon->server = GNUNET_CORE_connect(send_hello_context->peer->cfg,
3520 &core_connect_notify,
3527 send_hello_context->core_connect_task = GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_divide(send_hello_context->pg->ct_ctx.connect_timeout, send_hello_context->pg->ct_ctx.connect_attempts),
3528 &send_core_connect_requests,
3529 send_hello_context);
3532 GNUNET_SCHEDULER_add_now(&schedule_send_hellos, send_hello_context);
3536 * Connect to a peer, give it all the HELLO's of those peers
3537 * we will later ask it to connect to.
3539 * @param ct_ctx the overall connection context
3541 static void schedule_send_hellos (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
3543 struct SendHelloContext *send_hello_context = cls;
3544 struct GNUNET_TESTING_PeerGroup *pg = send_hello_context->pg;
3546 if ( (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN) != 0)
3548 GNUNET_free(send_hello_context);
3552 GNUNET_assert(send_hello_context->peer_pos != NULL); /* All of the HELLO sends to be scheduled have been scheduled! */
3554 if (((send_hello_context->peer->daemon->th == NULL) &&
3555 (pg->outstanding_connects > pg->max_outstanding_connections)) ||
3556 (pg->stop_connects == GNUNET_YES))
3558 #if VERBOSE_TESTING > 2
3559 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
3561 ("Delaying connect, we have too many outstanding connections!\n"));
3563 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply
3564 (GNUNET_TIME_UNIT_MILLISECONDS, 100),
3565 &schedule_send_hellos, send_hello_context);
3569 #if VERBOSE_TESTING > 2
3570 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
3571 _("Creating connection, outstanding_connections is %d\n"),
3572 outstanding_connects);
3574 if (send_hello_context->peer->daemon->th == NULL)
3576 pg->outstanding_connects++; /* Actual TRANSPORT, CORE connections! */
3577 send_hello_context->peer->daemon->th
3578 = GNUNET_TRANSPORT_connect (send_hello_context->peer->cfg, NULL,
3579 send_hello_context, NULL, NULL, NULL);
3582 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
3583 _("Offering Hello of peer %s to peer %s\n"),
3584 send_hello_context->peer->daemon->shortname, pg->peers[send_hello_context->peer_pos->index].daemon->shortname);
3586 GNUNET_TRANSPORT_offer_hello(send_hello_context->peer->daemon->th,
3587 (const struct GNUNET_MessageHeader *)pg->peers[send_hello_context->peer_pos->index].daemon->hello,
3588 &hello_sent_callback,
3589 send_hello_context);
3590 send_hello_context->peer_pos = send_hello_context->peer_pos->next;
3591 GNUNET_assert(send_hello_context->peer->daemon->th != NULL);
3597 * Internal notification of a connection, kept so that we can ensure some connections
3598 * happen instead of flooding all testing daemons with requests to connect.
3601 internal_connect_notify(void *cls, const struct GNUNET_PeerIdentity *first,
3602 const struct GNUNET_PeerIdentity *second,
3604 const struct GNUNET_CONFIGURATION_Handle *first_cfg,
3605 const struct GNUNET_CONFIGURATION_Handle *second_cfg,
3606 struct GNUNET_TESTING_Daemon *first_daemon,
3607 struct GNUNET_TESTING_Daemon *second_daemon,
3610 struct ConnectContext *connect_ctx = cls;
3611 struct ConnectTopologyContext *ct_ctx = connect_ctx->ct_ctx;
3612 struct GNUNET_TESTING_PeerGroup *pg = ct_ctx->pg;
3613 struct PeerConnection *connection;
3615 GNUNET_assert (0 < pg->outstanding_connects);
3616 pg->outstanding_connects--;
3619 * Check whether the inverse connection has been scheduled yet,
3620 * if not, we can remove it from the other peers list and avoid
3621 * even trying to connect them again!
3623 connection = pg->peers[connect_ctx->second_index].connect_peers_head;
3628 while ((connection != NULL) && (0
3629 != memcmp (first, &pg->peers[connection->index].daemon->id,
3630 sizeof(struct GNUNET_PeerIdentity))))
3632 connection = connection->next;
3635 if (connection != NULL) /* Can safely remove! */
3637 GNUNET_assert (0 < ct_ctx->remaining_connections);
3638 ct_ctx->remaining_connections--;
3639 if (pg->notify_connection != NULL) /* Notify of reverse connection */
3640 pg->notify_connection (pg->notify_connection_cls, second, first,
3641 distance, second_cfg, first_cfg, second_daemon,
3642 first_daemon, emsg);
3644 GNUNET_CONTAINER_DLL_remove(pg->peers[connect_ctx->second_index].connect_peers_head, pg->peers[connect_ctx->second_index].connect_peers_tail, connection);
3645 GNUNET_free(connection);
3648 if (ct_ctx->remaining_connections == 0)
3650 if (ct_ctx->notify_connections_done != NULL)
3652 ct_ctx->notify_connections_done (ct_ctx->notify_cls, NULL);
3653 ct_ctx->notify_connections_done = NULL;
3657 preschedule_connect (pg);
3659 if (pg->notify_connection != NULL)
3660 pg->notify_connection (pg->notify_connection_cls, first, second, distance,
3661 first_cfg, second_cfg, first_daemon, second_daemon,
3664 GNUNET_free(connect_ctx);
3668 * Either delay a connection (because there are too many outstanding)
3669 * or schedule it for right now.
3671 * @param cls a connection context
3672 * @param tc the task runtime context
3675 schedule_connect(void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
3677 struct ConnectContext *connect_context = cls;
3678 struct GNUNET_TESTING_PeerGroup *pg = connect_context->ct_ctx->pg;
3680 if ( (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN) != 0)
3683 if ((pg->outstanding_connects > pg->max_outstanding_connections)
3684 || (pg->stop_connects == GNUNET_YES))
3687 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
3689 ("Delaying connect, we have too many outstanding connections!\n"));
3691 GNUNET_SCHEDULER_add_delayed (
3692 GNUNET_TIME_relative_multiply (
3693 GNUNET_TIME_UNIT_MILLISECONDS,
3695 &schedule_connect, connect_context);
3700 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
3701 _("Creating connection, outstanding_connections is %d (max %d)\n"),
3702 pg->outstanding_connects, pg->max_outstanding_connections);
3704 pg->outstanding_connects++;
3705 pg->total_connects_scheduled++;
3706 GNUNET_TESTING_daemons_connect (
3707 pg->peers[connect_context->first_index].daemon,
3708 pg->peers[connect_context->second_index].daemon,
3709 connect_context->ct_ctx->connect_timeout,
3710 connect_context->ct_ctx->connect_attempts,
3716 &internal_connect_notify, connect_context); /* FIXME: free connect context! */
3722 * Iterator for actually scheduling connections to be created
3723 * between two peers.
3725 * @param cls closure, a GNUNET_TESTING_Daemon
3726 * @param key the key the second Daemon was stored under
3727 * @param value the GNUNET_TESTING_Daemon that the first is to connect to
3729 * @return GNUNET_YES to continue iteration
3732 connect_iterator (void *cls, const GNUNET_HashCode * key, void *value)
3734 struct ConnectTopologyContext *ct_ctx = cls;
3735 struct PeerData *first = ct_ctx->first;
3736 struct GNUNET_TESTING_Daemon *second = value;
3737 struct ConnectContext *connect_context;
3739 connect_context = GNUNET_malloc (sizeof (struct ConnectContext));
3740 connect_context->first = first->daemon;
3741 connect_context->second = second;
3742 connect_context->ct_ctx = ct_ctx;
3743 GNUNET_SCHEDULER_add_now (&schedule_connect, connect_context);
3751 * Iterator for copying all entries in the allowed hashmap to the
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 copy_topology_iterator (void *cls, const GNUNET_HashCode * key, void *value)
3763 struct PeerData *first = cls;
3765 GNUNET_assert (GNUNET_OK ==
3766 GNUNET_CONTAINER_multihashmap_put (first->connect_peers, key,
3768 GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY));
3775 * Make the peers to connect the same as those that are allowed to be
3778 * @param pg the peer group
3781 copy_allowed_topology(struct GNUNET_TESTING_PeerGroup *pg)
3783 unsigned int pg_iter;
3787 struct PeerConnection *iter;
3791 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
3794 iter = pg->peers[pg_iter].allowed_peers_head;
3795 while (iter != NULL)
3797 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
3798 "Creating connection between %d and %d\n", pg_iter,
3800 total += add_connections (pg, pg_iter, iter->index, CONNECT,
3802 //total += add_actual_connections(pg, pg_iter, iter->index);
3807 GNUNET_CONTAINER_multihashmap_iterate (pg->
3808 peers[pg_iter].allowed_peers,
3809 ©_topology_iterator,
3810 &pg->peers[pg_iter]);
3812 if (GNUNET_SYSERR == ret)
3813 return GNUNET_SYSERR;
3815 total = total + ret;
3822 * Connect the topology as specified by the PeerConnection's
3823 * of each peer in the peer group
3825 * @param pg the peer group we are dealing with
3826 * @param connect_timeout how long try connecting two peers
3827 * @param connect_attempts how many times (max) to attempt
3828 * @param notify_callback callback to notify when finished
3829 * @param notify_cls closure for notify callback
3831 * @return the number of connections that will be attempted
3834 connect_topology(struct GNUNET_TESTING_PeerGroup *pg,
3835 struct GNUNET_TIME_Relative connect_timeout,
3836 unsigned int connect_attempts,
3837 GNUNET_TESTING_NotifyCompletion notify_callback,
3840 unsigned int pg_iter;
3844 struct PeerConnection *connection_iter;
3847 struct SendHelloContext *send_hello_context;
3851 pg->ct_ctx.notify_connections_done = notify_callback;
3852 pg->ct_ctx.notify_cls = notify_cls;
3855 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
3858 connection_iter = pg->peers[pg_iter].connect_peers_head;
3859 while (connection_iter != NULL)
3861 connection_iter = connection_iter->next;
3866 GNUNET_CONTAINER_multihashmap_size (pg->peers[pg_iter].connect_peers);
3873 pg->ct_ctx.connect_timeout = connect_timeout;
3874 pg->ct_ctx.connect_attempts = connect_attempts;
3875 pg->ct_ctx.remaining_connections = total;
3878 /* First give all peers the HELLO's of other peers (connect to first peer's transport service, give HELLO's of other peers, continue...) */
3879 pg->remaining_hellos = total;
3880 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
3882 send_hello_context = GNUNET_malloc(sizeof(struct SendHelloContext));
3883 send_hello_context->peer = &pg->peers[pg_iter];
3884 send_hello_context->peer_pos = pg->peers[pg_iter].connect_peers_head;
3885 send_hello_context->pg = pg;
3886 GNUNET_SCHEDULER_add_now(&schedule_send_hellos, send_hello_context);
3889 for (pg_iter = 0; pg_iter < pg->max_outstanding_connections; pg_iter++)
3891 preschedule_connect (pg);
3899 * Takes a peer group and creates a topology based on the
3900 * one specified. Creates a topology means generates friend
3901 * files for the peers so they can only connect to those allowed
3902 * by the topology. This will only have an effect once peers
3903 * are started if the FRIENDS_ONLY option is set in the base
3904 * config. Also takes an optional restrict topology which
3905 * disallows connections based on particular transports
3906 * UNLESS they are specified in the restricted topology.
3908 * @param pg the peer group struct representing the running peers
3909 * @param topology which topology to connect the peers in
3910 * @param restrict_topology disallow restrict_transports transport
3911 * connections to peers NOT in this topology
3912 * use GNUNET_TESTING_TOPOLOGY_NONE for no restrictions
3913 * @param restrict_transports space delimited list of transports to blacklist
3914 * to create restricted topology
3916 * @return the maximum number of connections were all allowed peers
3917 * connected to each other
3920 GNUNET_TESTING_create_topology(struct GNUNET_TESTING_PeerGroup *pg,
3921 enum GNUNET_TESTING_Topology topology,
3922 enum GNUNET_TESTING_Topology restrict_topology,
3923 const char *restrict_transports)
3927 unsigned int num_connections;
3928 int unblacklisted_connections;
3930 struct PeerConnection *conn_iter;
3931 struct PeerConnection *temp_conn;
3936 for (i = 0; i < pg->total; i++)
3938 pg->peers[i].allowed_peers =
3939 GNUNET_CONTAINER_multihashmap_create (100);
3940 pg->peers[i].connect_peers =
3941 GNUNET_CONTAINER_multihashmap_create (100);
3942 pg->peers[i].blacklisted_peers =
3943 GNUNET_CONTAINER_multihashmap_create (100);
3944 pg->peers[i].pg = pg;
3950 case GNUNET_TESTING_TOPOLOGY_CLIQUE:
3952 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, _("Creating clique topology\n"));
3954 num_connections = create_clique (pg, &add_connections, ALLOWED, GNUNET_NO);
3956 case GNUNET_TESTING_TOPOLOGY_SMALL_WORLD_RING:
3958 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
3959 _("Creating small world (ring) topology\n"));
3961 num_connections = create_small_world_ring (pg, &add_connections, ALLOWED);
3963 case GNUNET_TESTING_TOPOLOGY_SMALL_WORLD:
3965 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
3966 _("Creating small world (2d-torus) topology\n"));
3968 num_connections = create_small_world (pg, &add_connections, ALLOWED);
3970 case GNUNET_TESTING_TOPOLOGY_RING:
3972 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, _("Creating ring topology\n"));
3974 num_connections = create_ring (pg, &add_connections, ALLOWED);
3976 case GNUNET_TESTING_TOPOLOGY_2D_TORUS:
3978 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, _("Creating 2d torus topology\n"));
3980 num_connections = create_2d_torus (pg, &add_connections, ALLOWED);
3982 case GNUNET_TESTING_TOPOLOGY_ERDOS_RENYI:
3984 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
3985 _("Creating Erdos-Renyi topology\n"));
3987 num_connections = create_erdos_renyi (pg, &add_connections, ALLOWED);
3989 case GNUNET_TESTING_TOPOLOGY_INTERNAT:
3991 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, _("Creating InterNAT topology\n"));
3993 num_connections = create_nated_internet (pg, &add_connections, ALLOWED);
3995 case GNUNET_TESTING_TOPOLOGY_SCALE_FREE:
3997 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
3998 _("Creating Scale Free topology\n"));
4000 num_connections = create_scale_free (pg, &add_connections, ALLOWED);
4002 case GNUNET_TESTING_TOPOLOGY_LINE:
4004 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
4005 _("Creating straight line topology\n"));
4007 num_connections = create_line (pg, &add_connections, ALLOWED);
4009 case GNUNET_TESTING_TOPOLOGY_FROM_FILE:
4011 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
4012 _("Creating topology from file!\n"));
4014 if (GNUNET_OK == GNUNET_CONFIGURATION_get_value_string (pg->cfg, "testing",
4017 num_connections = create_from_file (pg, filename, &add_connections,
4022 GNUNET_ERROR_TYPE_WARNING,
4023 "Missing configuration option TESTING:TOPOLOGY_FILE for creating topology from file!\n");
4024 num_connections = 0;
4027 case GNUNET_TESTING_TOPOLOGY_NONE:
4029 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
4031 ("Creating no allowed topology (all peers can connect at core level)\n"));
4033 num_connections = pg->total * pg->total; /* Clique is allowed! */
4036 num_connections = 0;
4040 if (GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno (pg->cfg, "TESTING",
4043 ret = create_and_copy_friend_files (pg);
4044 if (ret != GNUNET_OK)
4047 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
4048 _("Failed during friend file copying!\n"));
4050 return GNUNET_SYSERR;
4055 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
4056 _("Friend files created/copied successfully!\n"));
4061 /* Use the create clique method to initially set all connections as blacklisted. */
4062 if ((restrict_topology != GNUNET_TESTING_TOPOLOGY_NONE) && (restrict_topology
4063 != GNUNET_TESTING_TOPOLOGY_FROM_FILE))
4064 create_clique (pg, &add_connections, BLACKLIST, GNUNET_NO);
4066 return num_connections;
4068 unblacklisted_connections = 0;
4069 /* Un-blacklist connections as per the topology specified */
4070 switch (restrict_topology)
4072 case GNUNET_TESTING_TOPOLOGY_CLIQUE:
4074 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
4075 _("Blacklisting all but clique topology\n"));
4077 unblacklisted_connections = create_clique (pg, &remove_connections,
4078 BLACKLIST, GNUNET_NO);
4080 case GNUNET_TESTING_TOPOLOGY_SMALL_WORLD_RING:
4082 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
4083 _("Blacklisting all but small world (ring) topology\n"));
4085 unblacklisted_connections = create_small_world_ring (pg,
4086 &remove_connections,
4089 case GNUNET_TESTING_TOPOLOGY_SMALL_WORLD:
4091 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
4093 ("Blacklisting all but small world (2d-torus) topology\n"));
4095 unblacklisted_connections = create_small_world (pg, &remove_connections,
4098 case GNUNET_TESTING_TOPOLOGY_RING:
4100 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
4101 _("Blacklisting all but ring topology\n"));
4103 unblacklisted_connections
4104 = create_ring (pg, &remove_connections, BLACKLIST);
4106 case GNUNET_TESTING_TOPOLOGY_2D_TORUS:
4108 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
4109 _("Blacklisting all but 2d torus topology\n"));
4111 unblacklisted_connections = create_2d_torus (pg, &remove_connections,
4114 case GNUNET_TESTING_TOPOLOGY_ERDOS_RENYI:
4116 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
4117 _("Blacklisting all but Erdos-Renyi topology\n"));
4119 unblacklisted_connections = create_erdos_renyi (pg, &remove_connections,
4122 case GNUNET_TESTING_TOPOLOGY_INTERNAT:
4124 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
4125 _("Blacklisting all but InterNAT topology\n"));
4129 for (off = 0; off < pg->total; off++)
4131 conn_iter = pg->peers[off].allowed_peers_head;
4132 while (conn_iter != NULL)
4134 temp_conn = conn_iter->next;
4135 GNUNET_free(conn_iter);
4136 conn_iter = temp_conn;
4138 pg->peers[off].allowed_peers_head = NULL;
4139 pg->peers[off].allowed_peers_tail = NULL;
4141 conn_iter = pg->peers[off].connect_peers_head;
4142 while (conn_iter != NULL)
4144 temp_conn = conn_iter->next;
4145 GNUNET_free(conn_iter);
4146 conn_iter = temp_conn;
4148 pg->peers[off].connect_peers_head = NULL;
4149 pg->peers[off].connect_peers_tail = NULL;
4151 unblacklisted_connections
4152 = create_nated_internet_copy (pg, &remove_connections, BLACKLIST);
4154 unblacklisted_connections =
4155 create_nated_internet (pg, &remove_connections, BLACKLIST);
4159 case GNUNET_TESTING_TOPOLOGY_SCALE_FREE:
4161 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
4162 _("Blacklisting all but Scale Free topology\n"));
4164 unblacklisted_connections = create_scale_free (pg, &remove_connections,
4167 case GNUNET_TESTING_TOPOLOGY_LINE:
4169 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
4170 _("Blacklisting all but straight line topology\n"));
4172 unblacklisted_connections
4173 = create_line (pg, &remove_connections, BLACKLIST);
4178 if ((unblacklisted_connections > 0) && (restrict_transports != NULL))
4180 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Creating blacklist with `%s'\n",
4181 restrict_transports);
4182 ret = create_and_copy_blacklist_files (pg, restrict_transports);
4183 if (ret != GNUNET_OK)
4186 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
4187 _("Failed during blacklist file copying!\n"));
4194 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
4195 _("Blacklist files created/copied successfully!\n"));
4199 return num_connections;
4204 * Iterator for choosing random peers to connect.
4206 * @param cls closure, a RandomContext
4207 * @param key the key the second Daemon was stored under
4208 * @param value the GNUNET_TESTING_Daemon that the first is to connect to
4210 * @return GNUNET_YES to continue iteration
4213 random_connect_iterator (void *cls, const GNUNET_HashCode * key, void *value)
4215 struct RandomContext *random_ctx = cls;
4216 double random_number;
4217 uint32_t second_pos;
4218 GNUNET_HashCode first_hash;
4221 GNUNET_CRYPTO_random_u64 (GNUNET_CRYPTO_QUALITY_WEAK,
4222 UINT64_MAX)) / ((double) UINT64_MAX);
4223 if (random_number < random_ctx->percentage)
4225 GNUNET_assert (GNUNET_OK ==
4226 GNUNET_CONTAINER_multihashmap_put (random_ctx->
4227 first->connect_peers_working_set,
4229 GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY));
4232 /* Now we have considered this particular connection, remove it from the second peer so it's not double counted */
4233 uid_from_hash (key, &second_pos);
4234 hash_from_uid (random_ctx->first_uid, &first_hash);
4235 GNUNET_assert (random_ctx->pg->total > second_pos);
4236 GNUNET_assert (GNUNET_YES ==
4237 GNUNET_CONTAINER_multihashmap_remove (random_ctx->
4239 [second_pos].connect_peers,
4248 * Iterator for adding at least X peers to a peers connection set.
4250 * @param cls closure, MinimumContext
4251 * @param key the key the second Daemon was stored under
4252 * @param value the GNUNET_TESTING_Daemon that the first is to connect to
4254 * @return GNUNET_YES to continue iteration
4257 minimum_connect_iterator (void *cls, const GNUNET_HashCode * key, void *value)
4259 struct MinimumContext *min_ctx = cls;
4260 uint32_t second_pos;
4261 GNUNET_HashCode first_hash;
4264 if (GNUNET_CONTAINER_multihashmap_size
4265 (min_ctx->first->connect_peers_working_set) < min_ctx->num_to_add)
4267 for (i = 0; i < min_ctx->num_to_add; i++)
4269 if (min_ctx->pg_array[i] == min_ctx->current)
4271 GNUNET_assert (GNUNET_OK ==
4272 GNUNET_CONTAINER_multihashmap_put
4273 (min_ctx->first->connect_peers_working_set, key,
4275 GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY));
4276 uid_from_hash (key, &second_pos);
4277 hash_from_uid (min_ctx->first_uid, &first_hash);
4278 GNUNET_assert (min_ctx->pg->total > second_pos);
4279 GNUNET_assert (GNUNET_OK ==
4280 GNUNET_CONTAINER_multihashmap_put (min_ctx->
4282 [second_pos].connect_peers_working_set,
4286 GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY));
4287 /* Now we have added this particular connection, remove it from the second peer's map so it's not double counted */
4288 GNUNET_assert (GNUNET_YES ==
4289 GNUNET_CONTAINER_multihashmap_remove
4290 (min_ctx->pg->peers[second_pos].connect_peers,
4291 &first_hash, min_ctx->first->daemon));
4298 return GNUNET_NO; /* We can stop iterating, we have enough peers! */
4303 * Iterator for adding peers to a connection set based on a depth first search.
4305 * @param cls closure, MinimumContext
4306 * @param key the key the second daemon was stored under
4307 * @param value the GNUNET_TESTING_Daemon that the first is to connect to
4309 * @return GNUNET_YES to continue iteration
4312 dfs_connect_iterator (void *cls, const GNUNET_HashCode * key, void *value)
4314 struct DFSContext *dfs_ctx = cls;
4315 GNUNET_HashCode first_hash;
4317 if (dfs_ctx->current == dfs_ctx->chosen)
4319 GNUNET_assert (GNUNET_OK ==
4320 GNUNET_CONTAINER_multihashmap_put (dfs_ctx->
4321 first->connect_peers_working_set,
4323 GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY));
4324 uid_from_hash (key, &dfs_ctx->second_uid);
4325 hash_from_uid (dfs_ctx->first_uid, &first_hash);
4326 GNUNET_assert (GNUNET_OK ==
4327 GNUNET_CONTAINER_multihashmap_put (dfs_ctx->
4329 [dfs_ctx->second_uid].connect_peers_working_set,
4333 GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY));
4334 GNUNET_assert (GNUNET_YES ==
4335 GNUNET_CONTAINER_multihashmap_remove (dfs_ctx->
4337 [dfs_ctx->second_uid].connect_peers,
4341 /* Can't remove second from first yet because we are currently iterating, hence the return value in the DFSContext! */
4342 return GNUNET_NO; /* We have found our peer, don't iterate more */
4351 * From the set of connections possible, choose percentage percent of connections
4352 * to actually connect.
4354 * @param pg the peergroup we are dealing with
4355 * @param percentage what percent of total connections to make
4358 choose_random_connections(struct GNUNET_TESTING_PeerGroup *pg,
4363 struct PeerConnection *conn_iter;
4364 double random_number;
4366 struct RandomContext random_ctx;
4369 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
4372 conn_iter = pg->peers[pg_iter].connect_peers_head;
4373 while (conn_iter != NULL)
4376 = ((double) GNUNET_CRYPTO_random_u64 (GNUNET_CRYPTO_QUALITY_WEAK,
4378 / ((double) UINT64_MAX);
4379 if (random_number < percentage)
4381 add_connections (pg, pg_iter, conn_iter->index, WORKING_SET,
4384 conn_iter = conn_iter->next;
4387 random_ctx.first_uid = pg_iter;
4388 random_ctx.first = &pg->peers[pg_iter];
4389 random_ctx.percentage = percentage;
4391 pg->peers[pg_iter].connect_peers_working_set
4392 = GNUNET_CONTAINER_multihashmap_create (pg->total);
4393 GNUNET_CONTAINER_multihashmap_iterate (pg->peers[pg_iter].connect_peers,
4394 &random_connect_iterator,
4396 /* Now remove the old connections */
4397 GNUNET_CONTAINER_multihashmap_destroy (pg->
4398 peers[pg_iter].connect_peers);
4399 /* And replace with the random set */
4400 pg->peers[pg_iter].connect_peers
4401 = pg->peers[pg_iter].connect_peers_working_set;
4405 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
4407 conn_iter = pg->peers[pg_iter].connect_peers_head;
4408 while (pg->peers[pg_iter].connect_peers_head != NULL)
4409 remove_connections (pg, pg_iter,
4410 pg->peers[pg_iter].connect_peers_head->index,
4411 CONNECT, GNUNET_YES);
4413 pg->peers[pg_iter].connect_peers_head
4414 = pg->peers[pg_iter].connect_peers_working_set_head;
4415 pg->peers[pg_iter].connect_peers_tail
4416 = pg->peers[pg_iter].connect_peers_working_set_tail;
4417 pg->peers[pg_iter].connect_peers_working_set_head = NULL;
4418 pg->peers[pg_iter].connect_peers_working_set_tail = NULL;
4423 * Count the number of connections in a linked list of connections.
4425 * @param conn_list the connection list to get the count of
4427 * @return the number of elements in the list
4430 count_connections(struct PeerConnection *conn_list)
4432 struct PeerConnection *iter;
4436 while (iter != NULL)
4445 count_workingset_connections(struct GNUNET_TESTING_PeerGroup *pg)
4448 unsigned int pg_iter;
4450 struct PeerConnection *conn_iter;
4454 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
4457 conn_iter = pg->peers[pg_iter].connect_peers_working_set_head;
4458 while (conn_iter != NULL)
4461 conn_iter = conn_iter->next;
4465 GNUNET_CONTAINER_multihashmap_size (pg->
4467 [pg_iter].connect_peers_working_set);
4475 count_allowed_connections(struct GNUNET_TESTING_PeerGroup *pg)
4478 unsigned int pg_iter;
4480 struct PeerConnection *conn_iter;
4484 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
4487 conn_iter = pg->peers[pg_iter].allowed_peers_head;
4488 while (conn_iter != NULL)
4491 conn_iter = conn_iter->next;
4495 GNUNET_CONTAINER_multihashmap_size (pg->
4497 [pg_iter].allowed_peers);
4505 * From the set of connections possible, choose at least num connections per
4508 * @param pg the peergroup we are dealing with
4509 * @param num how many connections at least should each peer have (if possible)?
4512 choose_minimum(struct GNUNET_TESTING_PeerGroup *pg, unsigned int num)
4515 struct MinimumContext minimum_ctx;
4517 struct PeerConnection *conn_iter;
4518 unsigned int temp_list_size;
4521 uint32_t random; /* Random list entry to connect peer to */
4526 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
4529 = count_connections (pg->peers[pg_iter].connect_peers_head);
4530 if (temp_list_size == 0)
4532 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
4533 "Peer %d has 0 connections!?!?\n", pg_iter);
4536 for (i = 0; i < num; i++)
4538 random = GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK,
4540 conn_iter = pg->peers[pg_iter].connect_peers_head;
4541 for (count = 0; count < random; count++)
4542 conn_iter = conn_iter->next;
4543 /* We now have a random connection, connect it! */
4544 GNUNET_assert(conn_iter != NULL);
4545 add_connections (pg, pg_iter, conn_iter->index, WORKING_SET,
4550 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
4552 pg->peers[pg_iter].connect_peers_working_set =
4553 GNUNET_CONTAINER_multihashmap_create (num);
4556 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
4558 minimum_ctx.first_uid = pg_iter;
4559 minimum_ctx.pg_array =
4560 GNUNET_CRYPTO_random_permute (GNUNET_CRYPTO_QUALITY_WEAK,
4561 GNUNET_CONTAINER_multihashmap_size
4562 (pg->peers[pg_iter].connect_peers));
4563 minimum_ctx.first = &pg->peers[pg_iter];
4564 minimum_ctx.pg = pg;
4565 minimum_ctx.num_to_add = num;
4566 minimum_ctx.current = 0;
4567 GNUNET_CONTAINER_multihashmap_iterate (pg->peers[pg_iter].connect_peers,
4568 &minimum_connect_iterator,
4572 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
4574 /* Remove the "old" connections */
4575 GNUNET_CONTAINER_multihashmap_destroy (pg->
4576 peers[pg_iter].connect_peers);
4577 /* And replace with the working set */
4578 pg->peers[pg_iter].connect_peers =
4579 pg->peers[pg_iter].connect_peers_working_set;
4582 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
4584 while (pg->peers[pg_iter].connect_peers_head != NULL)
4586 conn_iter = pg->peers[pg_iter].connect_peers_head;
4587 GNUNET_CONTAINER_DLL_remove(pg->peers[pg_iter].connect_peers_head,
4588 pg->peers[pg_iter].connect_peers_tail,
4590 GNUNET_free(conn_iter);
4591 /*remove_connections(pg, pg_iter, pg->peers[pg_iter].connect_peers_head->index, CONNECT, GNUNET_YES);*/
4594 pg->peers[pg_iter].connect_peers_head
4595 = pg->peers[pg_iter].connect_peers_working_set_head;
4596 pg->peers[pg_iter].connect_peers_tail
4597 = pg->peers[pg_iter].connect_peers_working_set_tail;
4598 pg->peers[pg_iter].connect_peers_working_set_head = NULL;
4599 pg->peers[pg_iter].connect_peers_working_set_tail = NULL;
4604 struct FindClosestContext
4607 * The currently known closest peer.
4609 struct GNUNET_TESTING_Daemon *closest;
4612 * The info for the peer we are adding connections for.
4614 struct PeerData *curr_peer;
4617 * The distance (bits) between the current
4618 * peer and the currently known closest.
4620 unsigned int closest_dist;
4623 * The offset of the closest known peer in
4626 unsigned int closest_num;
4630 * Iterator over hash map entries of the allowed
4631 * peer connections. Find the closest, not already
4632 * connected peer and return it.
4634 * @param cls closure (struct FindClosestContext)
4635 * @param key current key code (hash of offset in pg)
4636 * @param value value in the hash map - a GNUNET_TESTING_Daemon
4637 * @return GNUNET_YES if we should continue to
4642 find_closest_peers (void *cls, const GNUNET_HashCode * key, void *value)
4644 struct FindClosestContext *closest_ctx = cls;
4645 struct GNUNET_TESTING_Daemon *daemon = value;
4647 if (((closest_ctx->closest == NULL) ||
4648 (GNUNET_CRYPTO_hash_matching_bits
4649 (&daemon->id.hashPubKey,
4650 &closest_ctx->curr_peer->daemon->id.hashPubKey) >
4651 closest_ctx->closest_dist))
4653 GNUNET_CONTAINER_multihashmap_contains (closest_ctx->
4654 curr_peer->connect_peers,
4657 closest_ctx->closest_dist =
4658 GNUNET_CRYPTO_hash_matching_bits (&daemon->id.hashPubKey,
4659 &closest_ctx->curr_peer->daemon->
4661 closest_ctx->closest = daemon;
4662 uid_from_hash (key, &closest_ctx->closest_num);
4668 * From the set of connections possible, choose at num connections per
4669 * peer based on depth which are closest out of those allowed. Guaranteed
4670 * to add num peers to connect to, provided there are that many peers
4671 * in the underlay topology to connect to.
4673 * @param pg the peergroup we are dealing with
4674 * @param num how many connections at least should each peer have (if possible)?
4675 * @param proc processor to actually add the connections
4676 * @param list the peer list to use
4679 add_closest (struct GNUNET_TESTING_PeerGroup *pg, unsigned int num,
4680 GNUNET_TESTING_ConnectionProcessor proc, enum PeerLists list)
4685 struct FindClosestContext closest_ctx;
4690 for (i = 0; i < num; i++) /* Each time find a closest peer (from those available) */
4692 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
4694 closest_ctx.curr_peer = &pg->peers[pg_iter];
4695 closest_ctx.closest = NULL;
4696 closest_ctx.closest_dist = 0;
4697 closest_ctx.closest_num = 0;
4698 GNUNET_CONTAINER_multihashmap_iterate (pg->
4699 peers[pg_iter].allowed_peers,
4700 &find_closest_peers,
4702 if (closest_ctx.closest != NULL)
4704 GNUNET_assert (closest_ctx.closest_num < pg->total);
4705 proc (pg, pg_iter, closest_ctx.closest_num, list);
4713 * From the set of connections possible, choose at least num connections per
4714 * peer based on depth first traversal of peer connections. If DFS leaves
4715 * peers unconnected, ensure those peers get connections.
4717 * @param pg the peergroup we are dealing with
4718 * @param num how many connections at least should each peer have (if possible)?
4721 perform_dfs(struct GNUNET_TESTING_PeerGroup *pg, unsigned int num)
4725 uint32_t starting_peer;
4726 uint32_t least_connections;
4727 uint32_t random_connection;
4729 unsigned int temp_count;
4730 struct PeerConnection *peer_iter;
4732 struct DFSContext dfs_ctx;
4733 GNUNET_HashCode second_hash;
4739 while ((count_workingset_connections (pg) < num * pg->total)
4740 && (count_allowed_connections (pg) > 0))
4742 if (dfs_count % pg->total == 0) /* Restart the DFS at some weakly connected peer */
4744 least_connections = -1; /* Set to very high number */
4745 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
4748 = count_connections (
4749 pg->peers[pg_iter].connect_peers_working_set_head);
4750 if (temp_count < least_connections)
4752 starting_peer = pg_iter;
4753 least_connections = temp_count;
4759 = count_connections (pg->peers[starting_peer].connect_peers_head);
4760 if (temp_count == 0)
4761 continue; /* FIXME: infinite loop? */
4763 random_connection = GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK,
4766 peer_iter = pg->peers[starting_peer].connect_peers_head;
4767 while (temp_count < random_connection)
4769 peer_iter = peer_iter->next;
4772 GNUNET_assert(peer_iter != NULL);
4773 add_connections (pg, starting_peer, peer_iter->index, WORKING_SET,
4775 remove_connections (pg, starting_peer, peer_iter->index, CONNECT,
4777 starting_peer = peer_iter->index;
4782 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
4784 pg->peers[pg_iter].connect_peers_working_set =
4785 GNUNET_CONTAINER_multihashmap_create (num);
4790 while ((count_workingset_connections (pg) < num * pg->total)
4791 && (count_allowed_connections (pg) > 0))
4793 if (dfs_count % pg->total == 0) /* Restart the DFS at some weakly connected peer */
4795 least_connections = -1; /* Set to very high number */
4796 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
4798 if (GNUNET_CONTAINER_multihashmap_size
4799 (pg->peers[pg_iter].connect_peers_working_set) <
4802 starting_peer = pg_iter;
4804 GNUNET_CONTAINER_multihashmap_size (pg->
4806 [pg_iter].connect_peers_working_set);
4811 if (GNUNET_CONTAINER_multihashmap_size (pg->peers[starting_peer].connect_peers) == 0) /* Ensure there is at least one peer left to connect! */
4817 /* Choose a random peer from the chosen peers set of connections to add */
4819 GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK,
4820 GNUNET_CONTAINER_multihashmap_size
4821 (pg->peers[starting_peer].connect_peers));
4822 dfs_ctx.first_uid = starting_peer;
4823 dfs_ctx.first = &pg->peers[starting_peer];
4825 dfs_ctx.current = 0;
4827 GNUNET_CONTAINER_multihashmap_iterate (pg->
4829 [starting_peer].connect_peers,
4830 &dfs_connect_iterator, &dfs_ctx);
4831 /* Remove the second from the first, since we will be continuing the search and may encounter the first peer again! */
4832 hash_from_uid (dfs_ctx.second_uid, &second_hash);
4833 GNUNET_assert (GNUNET_YES ==
4834 GNUNET_CONTAINER_multihashmap_remove (pg->peers
4835 [starting_peer].connect_peers,
4839 [dfs_ctx.second_uid].daemon));
4840 starting_peer = dfs_ctx.second_uid;
4843 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
4845 /* Remove the "old" connections */
4846 GNUNET_CONTAINER_multihashmap_destroy (pg->
4847 peers[pg_iter].connect_peers);
4848 /* And replace with the working set */
4849 pg->peers[pg_iter].connect_peers =
4850 pg->peers[pg_iter].connect_peers_working_set;
4856 * Internal callback for topology information for a particular peer.
4859 internal_topology_callback(void *cls, const struct GNUNET_PeerIdentity *peer,
4860 const struct GNUNET_TRANSPORT_ATS_Information *atsi)
4862 struct CoreContext *core_ctx = cls;
4863 struct TopologyIterateContext *iter_ctx = core_ctx->iter_context;
4865 if (peer == NULL) /* Either finished, or something went wrong */
4867 iter_ctx->completed++;
4868 iter_ctx->connected--;
4869 /* One core context allocated per iteration, must free! */
4870 GNUNET_free (core_ctx);
4874 iter_ctx->topology_cb (iter_ctx->cls, &core_ctx->daemon->id, peer, NULL);
4877 if (iter_ctx->completed == iter_ctx->total)
4879 iter_ctx->topology_cb (iter_ctx->cls, NULL, NULL, NULL);
4880 /* Once all are done, free the iteration context */
4881 GNUNET_free (iter_ctx);
4886 * Check running topology iteration tasks, if below max start a new one, otherwise
4887 * schedule for some time in the future.
4890 schedule_get_topology(void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
4892 struct CoreContext *core_context = cls;
4893 struct TopologyIterateContext *topology_context =
4894 (struct TopologyIterateContext *) core_context->iter_context;
4895 if ( (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN) != 0)
4898 if (topology_context->connected
4899 > topology_context->pg->max_outstanding_connections)
4901 #if VERBOSE_TESTING > 2
4902 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
4904 ("Delaying connect, we have too many outstanding connections!\n"));
4906 GNUNET_SCHEDULER_add_delayed (
4907 GNUNET_TIME_relative_multiply (
4908 GNUNET_TIME_UNIT_MILLISECONDS,
4910 &schedule_get_topology, core_context);
4914 #if VERBOSE_TESTING > 2
4915 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
4916 _("Creating connection, outstanding_connections is %d\n"),
4917 outstanding_connects);
4919 topology_context->connected++;
4921 if (GNUNET_OK != GNUNET_CORE_iterate_peers (core_context->daemon->cfg,
4922 &internal_topology_callback,
4925 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Topology iteration failed.\n");
4926 internal_topology_callback (core_context, NULL, NULL);
4932 * Iterate over all (running) peers in the peer group, retrieve
4933 * all connections that each currently has.
4936 GNUNET_TESTING_get_topology(struct GNUNET_TESTING_PeerGroup *pg,
4937 GNUNET_TESTING_NotifyTopology cb, void *cls)
4939 struct TopologyIterateContext *topology_context;
4940 struct CoreContext *core_ctx;
4942 unsigned int total_count;
4944 /* Allocate a single topology iteration context */
4945 topology_context = GNUNET_malloc (sizeof (struct TopologyIterateContext));
4946 topology_context->topology_cb = cb;
4947 topology_context->cls = cls;
4948 topology_context->pg = pg;
4950 for (i = 0; i < pg->total; i++)
4952 if (pg->peers[i].daemon->running == GNUNET_YES)
4954 /* Allocate one core context per core we need to connect to */
4955 core_ctx = GNUNET_malloc (sizeof (struct CoreContext));
4956 core_ctx->daemon = pg->peers[i].daemon;
4957 /* Set back pointer to topology iteration context */
4958 core_ctx->iter_context = topology_context;
4959 GNUNET_SCHEDULER_add_now (&schedule_get_topology, core_ctx);
4963 if (total_count == 0)
4965 cb (cls, NULL, NULL, "Cannot iterate over topology, no running peers!");
4966 GNUNET_free (topology_context);
4969 topology_context->total = total_count;
4974 * Callback function to process statistic values.
4975 * This handler is here only really to insert a peer
4976 * identity (or daemon) so the statistics can be uniquely
4977 * tied to a single running peer.
4979 * @param cls closure
4980 * @param subsystem name of subsystem that created the statistic
4981 * @param name the name of the datum
4982 * @param value the current value
4983 * @param is_persistent GNUNET_YES if the value is persistent, GNUNET_NO if not
4984 * @return GNUNET_OK to continue, GNUNET_SYSERR to abort iteration
4987 internal_stats_callback(void *cls, const char *subsystem, const char *name,
4988 uint64_t value, int is_persistent)
4990 struct StatsCoreContext *core_context = cls;
4991 struct StatsIterateContext *stats_context =
4992 (struct StatsIterateContext *) core_context->iter_context;
4994 return stats_context->proc (stats_context->cls, &core_context->daemon->id,
4995 subsystem, name, value, is_persistent);
4999 * Internal continuation call for statistics iteration.
5001 * @param cls closure, the CoreContext for this iteration
5002 * @param success whether or not the statistics iterations
5003 * was canceled or not (we don't care)
5006 internal_stats_cont(void *cls, int success)
5008 struct StatsCoreContext *core_context = cls;
5009 struct StatsIterateContext *stats_context =
5010 (struct StatsIterateContext *) core_context->iter_context;
5012 stats_context->connected--;
5013 stats_context->completed++;
5015 if (stats_context->completed == stats_context->total)
5017 stats_context->cont (stats_context->cls, GNUNET_YES);
5018 GNUNET_free (stats_context);
5021 if (core_context->stats_handle != NULL)
5022 GNUNET_STATISTICS_destroy (core_context->stats_handle, GNUNET_NO);
5024 GNUNET_free (core_context);
5028 * Check running topology iteration tasks, if below max start a new one, otherwise
5029 * schedule for some time in the future.
5032 schedule_get_statistics(void *cls,
5033 const struct GNUNET_SCHEDULER_TaskContext *tc)
5035 struct StatsCoreContext *core_context = cls;
5036 struct StatsIterateContext *stats_context =
5037 (struct StatsIterateContext *) core_context->iter_context;
5039 if ( (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN) != 0)
5042 if (stats_context->connected > stats_context->pg->max_outstanding_connections)
5044 #if VERBOSE_TESTING > 2
5045 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
5047 ("Delaying connect, we have too many outstanding connections!\n"));
5049 GNUNET_SCHEDULER_add_delayed (
5050 GNUNET_TIME_relative_multiply (
5051 GNUNET_TIME_UNIT_MILLISECONDS,
5053 &schedule_get_statistics, core_context);
5057 #if VERBOSE_TESTING > 2
5058 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
5059 _("Creating connection, outstanding_connections is %d\n"),
5060 outstanding_connects);
5063 stats_context->connected++;
5064 core_context->stats_handle
5065 = GNUNET_STATISTICS_create ("testing", core_context->daemon->cfg);
5066 if (core_context->stats_handle == NULL)
5068 internal_stats_cont (core_context, GNUNET_NO);
5072 core_context->stats_get_handle
5073 = GNUNET_STATISTICS_get (core_context->stats_handle, NULL, NULL,
5074 GNUNET_TIME_relative_get_forever (),
5075 &internal_stats_cont,
5076 &internal_stats_callback, core_context);
5077 if (core_context->stats_get_handle == NULL)
5078 internal_stats_cont (core_context, GNUNET_NO);
5083 struct DuplicateStats
5086 * Next item in the list
5088 struct DuplicateStats *next;
5091 * Nasty string, concatenation of relevant information.
5093 char *unique_string;
5097 * Check whether the combination of port/host/unix domain socket
5098 * already exists in the list of peers being checked for statistics.
5100 * @param pg the peergroup in question
5101 * @param specific_peer the peer we're concerned with
5102 * @param stats_list the list to return to the caller
5104 * @return GNUNET_YES if the statistics instance has been seen already,
5105 * GNUNET_NO if not (and we may have added it to the list)
5108 stats_check_existing(struct GNUNET_TESTING_PeerGroup *pg,
5109 struct PeerData *specific_peer,
5110 struct DuplicateStats **stats_list)
5112 struct DuplicateStats *pos;
5113 char *unix_domain_socket;
5114 unsigned long long port;
5117 != GNUNET_CONFIGURATION_get_value_yesno (pg->cfg, "testing",
5118 "single_statistics_per_host"))
5119 return GNUNET_NO; /* Each peer has its own statistics instance, do nothing! */
5122 if (GNUNET_OK != GNUNET_CONFIGURATION_get_value_string (specific_peer->cfg,
5125 &unix_domain_socket))
5128 if (GNUNET_OK != GNUNET_CONFIGURATION_get_value_number (specific_peer->cfg,
5129 "statistics", "port",
5132 GNUNET_free(unix_domain_socket);
5136 if (specific_peer->daemon->hostname != NULL)
5137 GNUNET_asprintf (&to_match, "%s%s%llu", specific_peer->daemon->hostname,
5138 unix_domain_socket, port);
5140 GNUNET_asprintf (&to_match, "%s%llu", unix_domain_socket, port);
5144 if (0 == strcmp (to_match, pos->unique_string))
5146 GNUNET_free (unix_domain_socket);
5147 GNUNET_free (to_match);
5152 pos = GNUNET_malloc (sizeof (struct DuplicateStats));
5153 pos->unique_string = to_match;
5154 pos->next = *stats_list;
5156 GNUNET_free (unix_domain_socket);
5161 * Iterate over all (running) peers in the peer group, retrieve
5162 * all statistics from each.
5164 * @param pg the peergroup to iterate statistics of
5165 * @param cont continuation to call once all stats have been retrieved
5166 * @param proc processing function for each statistic from each peer
5167 * @param cls closure to pass to proc
5171 GNUNET_TESTING_get_statistics(struct GNUNET_TESTING_PeerGroup *pg,
5172 GNUNET_STATISTICS_Callback cont,
5173 GNUNET_TESTING_STATISTICS_Iterator proc,
5176 struct StatsIterateContext *stats_context;
5177 struct StatsCoreContext *core_ctx;
5179 unsigned int total_count;
5180 struct DuplicateStats *stats_list;
5181 struct DuplicateStats *pos;
5184 /* Allocate a single stats iteration context */
5185 stats_context = GNUNET_malloc (sizeof (struct StatsIterateContext));
5186 stats_context->cont = cont;
5187 stats_context->proc = proc;
5188 stats_context->cls = cls;
5189 stats_context->pg = pg;
5192 for (i = 0; i < pg->total; i++)
5194 if ((pg->peers[i].daemon->running == GNUNET_YES) && (GNUNET_NO
5195 == stats_check_existing (pg, &pg->peers[i], &stats_list)))
5197 /* Allocate one core context per core we need to connect to */
5198 core_ctx = GNUNET_malloc (sizeof (struct StatsCoreContext));
5199 core_ctx->daemon = pg->peers[i].daemon;
5200 /* Set back pointer to topology iteration context */
5201 core_ctx->iter_context = stats_context;
5202 GNUNET_SCHEDULER_add_now (&schedule_get_statistics, core_ctx);
5207 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
5208 "Retrieving stats from %u total instances.\n", total_count);
5209 stats_context->total = total_count;
5210 if (stats_list != NULL)
5215 GNUNET_free (pos->unique_string);
5216 stats_list = pos->next;
5218 pos = stats_list->next;
5225 * Stop the connection process temporarily.
5227 * @param pg the peer group to stop connecting
5230 GNUNET_TESTING_stop_connections(struct GNUNET_TESTING_PeerGroup *pg)
5232 pg->stop_connects = GNUNET_YES;
5236 * Resume the connection process temporarily.
5238 * @param pg the peer group to resume connecting
5241 GNUNET_TESTING_resume_connections(struct GNUNET_TESTING_PeerGroup *pg)
5243 pg->stop_connects = GNUNET_NO;
5247 * There are many ways to connect peers that are supported by this function.
5248 * To connect peers in the same topology that was created via the
5249 * GNUNET_TESTING_create_topology, the topology variable must be set to
5250 * GNUNET_TESTING_TOPOLOGY_NONE. If the topology variable is specified,
5251 * a new instance of that topology will be generated and attempted to be
5252 * connected. This could result in some connections being impossible,
5253 * because some topologies are non-deterministic.
5255 * @param pg the peer group struct representing the running peers
5256 * @param topology which topology to connect the peers in
5257 * @param options options for connecting the topology
5258 * @param option_modifier modifier for options that take a parameter
5259 * @param connect_timeout how long to wait before giving up on connecting
5261 * @param connect_attempts how many times to attempt to connect two peers
5262 * over the connect_timeout duration
5263 * @param notify_callback notification to be called once all connections completed
5264 * @param notify_cls closure for notification callback
5266 * @return the number of connections that will be attempted, GNUNET_SYSERR on error
5269 GNUNET_TESTING_connect_topology(
5270 struct GNUNET_TESTING_PeerGroup *pg,
5271 enum GNUNET_TESTING_Topology topology,
5272 enum GNUNET_TESTING_TopologyOption options,
5273 double option_modifier,
5274 struct GNUNET_TIME_Relative connect_timeout,
5275 unsigned int connect_attempts,
5276 GNUNET_TESTING_NotifyCompletion notify_callback,
5281 case GNUNET_TESTING_TOPOLOGY_CLIQUE:
5282 #if VERBOSE_TOPOLOGY
5283 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
5284 _("Creating clique CONNECT topology\n"));
5286 create_clique (pg, &add_connections, CONNECT, GNUNET_NO);
5288 case GNUNET_TESTING_TOPOLOGY_SMALL_WORLD_RING:
5289 #if VERBOSE_TOPOLOGY
5290 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
5291 _("Creating small world (ring) CONNECT topology\n"));
5293 create_small_world_ring (pg, &add_connections, CONNECT);
5295 case GNUNET_TESTING_TOPOLOGY_SMALL_WORLD:
5296 #if VERBOSE_TOPOLOGY
5297 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
5298 _("Creating small world (2d-torus) CONNECT topology\n"));
5300 create_small_world (pg, &add_connections, CONNECT);
5302 case GNUNET_TESTING_TOPOLOGY_RING:
5303 #if VERBOSE_TOPOLOGY
5304 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, _("Creating ring CONNECT topology\n"));
5306 create_ring (pg, &add_connections, CONNECT);
5308 case GNUNET_TESTING_TOPOLOGY_2D_TORUS:
5309 #if VERBOSE_TOPOLOGY
5310 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
5311 _("Creating 2d torus CONNECT topology\n"));
5313 create_2d_torus (pg, &add_connections, CONNECT);
5315 case GNUNET_TESTING_TOPOLOGY_ERDOS_RENYI:
5316 #if VERBOSE_TOPOLOGY
5317 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
5318 _("Creating Erdos-Renyi CONNECT topology\n"));
5320 create_erdos_renyi (pg, &add_connections, CONNECT);
5322 case GNUNET_TESTING_TOPOLOGY_INTERNAT:
5323 #if VERBOSE_TOPOLOGY
5324 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
5325 _("Creating InterNAT CONNECT topology\n"));
5327 create_nated_internet (pg, &add_connections, CONNECT);
5329 case GNUNET_TESTING_TOPOLOGY_SCALE_FREE:
5330 #if VERBOSE_TOPOLOGY
5331 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
5332 _("Creating Scale Free CONNECT topology\n"));
5334 create_scale_free (pg, &add_connections, CONNECT);
5336 case GNUNET_TESTING_TOPOLOGY_LINE:
5337 #if VERBOSE_TOPOLOGY
5338 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
5339 _("Creating straight line CONNECT topology\n"));
5341 create_line (pg, &add_connections, CONNECT);
5343 case GNUNET_TESTING_TOPOLOGY_NONE:
5344 #if VERBOSE_TOPOLOGY
5345 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, _("Creating no CONNECT topology\n"));
5347 copy_allowed_topology (pg);
5350 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, _
5351 ("Unknown topology specification, can't connect peers!\n"));
5352 return GNUNET_SYSERR;
5357 case GNUNET_TESTING_TOPOLOGY_OPTION_RANDOM:
5358 #if VERBOSE_TOPOLOGY
5359 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, _
5360 ("Connecting random subset (%'.2f percent) of possible peers\n"), 100
5363 choose_random_connections (pg, option_modifier);
5365 case GNUNET_TESTING_TOPOLOGY_OPTION_MINIMUM:
5366 #if VERBOSE_TOPOLOGY
5367 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
5368 _("Connecting a minimum of %u peers each (if possible)\n"),
5369 (unsigned int) option_modifier);
5371 choose_minimum (pg, (unsigned int) option_modifier);
5373 case GNUNET_TESTING_TOPOLOGY_OPTION_DFS:
5374 #if VERBOSE_TOPOLOGY
5375 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, _
5376 ("Using DFS to connect a minimum of %u peers each (if possible)\n"),
5377 (unsigned int) option_modifier);
5380 perform_dfs (pg, (int) option_modifier);
5383 case GNUNET_TESTING_TOPOLOGY_OPTION_ADD_CLOSEST:
5384 #if VERBOSE_TOPOLOGY
5385 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, _
5386 ("Finding additional %u closest peers each (if possible)\n"),
5387 (unsigned int) option_modifier);
5390 add_closest (pg, (unsigned int) option_modifier,
5391 &add_connections, CONNECT);
5394 case GNUNET_TESTING_TOPOLOGY_OPTION_NONE:
5396 case GNUNET_TESTING_TOPOLOGY_OPTION_ALL:
5402 return connect_topology (pg, connect_timeout, connect_attempts,
5403 notify_callback, notify_cls);
5407 * Lookup and return the number of SSH connections to a host.
5409 * @param hostname the hostname to lookup in the list
5410 * @param pg the peergroup that the host belongs to
5412 * @return the number of current ssh connections to the host
5415 count_outstanding_at_host(const char *hostname,
5416 struct GNUNET_TESTING_PeerGroup *pg)
5418 struct OutstandingSSH *pos;
5420 while ((pos != NULL) && (strcmp (pos->hostname, hostname) != 0))
5422 GNUNET_assert(pos != NULL);
5423 return pos->outstanding;
5427 * Increment the number of SSH connections to a host by one.
5429 * @param hostname the hostname to lookup in the list
5430 * @param pg the peergroup that the host belongs to
5434 increment_outstanding_at_host(const char *hostname,
5435 struct GNUNET_TESTING_PeerGroup *pg)
5437 struct OutstandingSSH *pos;
5439 while ((pos != NULL) && (strcmp (pos->hostname, hostname) != 0))
5441 GNUNET_assert(pos != NULL);
5446 * Decrement the number of SSH connections to a host by one.
5448 * @param hostname the hostname to lookup in the list
5449 * @param pg the peergroup that the host belongs to
5453 decrement_outstanding_at_host(const char *hostname,
5454 struct GNUNET_TESTING_PeerGroup *pg)
5456 struct OutstandingSSH *pos;
5458 while ((pos != NULL) && (strcmp (pos->hostname, hostname) != 0))
5460 GNUNET_assert(pos != NULL);
5465 * Callback that is called whenever a hostkey is generated
5466 * for a peer. Call the real callback and decrement the
5467 * starting counter for the peergroup.
5469 * @param cls closure
5470 * @param id identifier for the daemon, NULL on error
5471 * @param d handle for the daemon
5472 * @param emsg error message (NULL on success)
5475 internal_hostkey_callback(void *cls, const struct GNUNET_PeerIdentity *id,
5476 struct GNUNET_TESTING_Daemon *d, const char *emsg)
5478 struct InternalStartContext *internal_context = cls;
5479 internal_context->peer->pg->starting--;
5480 internal_context->peer->pg->started++;
5481 if (internal_context->hostname != NULL)
5482 decrement_outstanding_at_host (internal_context->hostname,
5483 internal_context->peer->pg);
5484 if (internal_context->hostkey_callback != NULL)
5485 internal_context->hostkey_callback (internal_context->hostkey_cls, id, d,
5487 else if (internal_context->peer->pg->started
5488 == internal_context->peer->pg->total)
5490 internal_context->peer->pg->started = 0; /* Internal startup may use this counter! */
5491 GNUNET_TESTING_daemons_continue_startup (internal_context->peer->pg);
5496 * Callback that is called whenever a peer has finished starting.
5497 * Call the real callback and decrement the starting counter
5498 * for the peergroup.
5500 * @param cls closure
5501 * @param id identifier for the daemon, NULL on error
5503 * @param d handle for the daemon
5504 * @param emsg error message (NULL on success)
5507 internal_startup_callback(void *cls, const struct GNUNET_PeerIdentity *id,
5508 const struct GNUNET_CONFIGURATION_Handle *cfg,
5509 struct GNUNET_TESTING_Daemon *d, const char *emsg)
5511 struct InternalStartContext *internal_context = cls;
5512 internal_context->peer->pg->starting--;
5513 if (internal_context->hostname != NULL)
5514 decrement_outstanding_at_host (internal_context->hostname,
5515 internal_context->peer->pg);
5516 if (internal_context->start_cb != NULL)
5517 internal_context->start_cb (internal_context->start_cb_cls, id, cfg, d,
5522 internal_continue_startup(void *cls,
5523 const struct GNUNET_SCHEDULER_TaskContext *tc)
5525 struct InternalStartContext *internal_context = cls;
5527 if ( (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN) != 0)
5532 if ((internal_context->peer->pg->starting
5533 < internal_context->peer->pg->max_concurrent_ssh)
5534 || ((internal_context->hostname != NULL)
5535 && (count_outstanding_at_host (internal_context->hostname,
5536 internal_context->peer->pg)
5537 < internal_context->peer->pg->max_concurrent_ssh)))
5539 if (internal_context->hostname != NULL)
5540 increment_outstanding_at_host (internal_context->hostname,
5541 internal_context->peer->pg);
5542 internal_context->peer->pg->starting++;
5543 GNUNET_TESTING_daemon_continue_startup (internal_context->peer->daemon);
5547 GNUNET_SCHEDULER_add_delayed (
5548 GNUNET_TIME_relative_multiply (
5549 GNUNET_TIME_UNIT_MILLISECONDS,
5551 &internal_continue_startup,
5557 * Callback for informing us about a successful
5558 * or unsuccessful churn start call.
5560 * @param cls a ChurnContext
5561 * @param id the peer identity of the started peer
5562 * @param cfg the handle to the configuration of the peer
5563 * @param d handle to the daemon for the peer
5564 * @param emsg NULL on success, non-NULL on failure
5568 churn_start_callback(void *cls, const struct GNUNET_PeerIdentity *id,
5569 const struct GNUNET_CONFIGURATION_Handle *cfg,
5570 struct GNUNET_TESTING_Daemon *d, const char *emsg)
5572 struct ChurnRestartContext *startup_ctx = cls;
5573 struct ChurnContext *churn_ctx = startup_ctx->churn_ctx;
5575 unsigned int total_left;
5576 char *error_message;
5578 error_message = NULL;
5581 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
5582 "Churn stop callback failed with error `%s'\n", emsg);
5583 churn_ctx->num_failed_start++;
5587 churn_ctx->num_to_start--;
5590 total_left = (churn_ctx->num_to_stop - churn_ctx->num_failed_stop)
5591 + (churn_ctx->num_to_start - churn_ctx->num_failed_start);
5593 if (total_left == 0)
5595 if ((churn_ctx->num_failed_stop > 0) || (churn_ctx->num_failed_start > 0))
5598 "Churn didn't complete successfully, %u peers failed to start %u peers failed to be stopped!",
5599 churn_ctx->num_failed_start,
5600 churn_ctx->num_failed_stop);
5601 churn_ctx->cb (churn_ctx->cb_cls, error_message);
5602 GNUNET_free_non_null (error_message);
5603 GNUNET_free (churn_ctx);
5604 GNUNET_free (startup_ctx);
5609 schedule_churn_restart(void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
5611 struct PeerRestartContext *peer_restart_ctx = cls;
5612 struct ChurnRestartContext *startup_ctx = peer_restart_ctx->churn_restart_ctx;
5614 if (startup_ctx->outstanding > startup_ctx->pg->max_concurrent_ssh)
5615 GNUNET_SCHEDULER_add_delayed (
5616 GNUNET_TIME_relative_multiply (
5617 GNUNET_TIME_UNIT_MILLISECONDS,
5619 &schedule_churn_restart, peer_restart_ctx);
5622 if (startup_ctx->churn_ctx->service != NULL)
5623 GNUNET_TESTING_daemon_start_stopped_service (peer_restart_ctx->daemon,
5624 startup_ctx->churn_ctx->service,
5625 startup_ctx->timeout,
5626 &churn_start_callback, startup_ctx);
5628 GNUNET_TESTING_daemon_start_stopped (peer_restart_ctx->daemon,
5629 startup_ctx->timeout,
5630 &churn_start_callback, startup_ctx);
5631 GNUNET_free (peer_restart_ctx);
5636 * Callback for informing us about a successful
5637 * or unsuccessful churn start call.
5639 * @param cls a struct ServiceStartContext *startup_ctx
5640 * @param id the peer identity of the started peer
5641 * @param cfg the handle to the configuration of the peer
5642 * @param d handle to the daemon for the peer
5643 * @param emsg NULL on success, non-NULL on failure
5647 service_start_callback(void *cls,
5648 const struct GNUNET_PeerIdentity *id,
5649 const struct GNUNET_CONFIGURATION_Handle *cfg,
5650 struct GNUNET_TESTING_Daemon *d,
5653 struct ServiceStartContext *startup_ctx = (struct ServiceStartContext *)cls;
5657 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
5658 "Service start failed with error `%s'\n", emsg);
5661 startup_ctx->outstanding--;
5662 startup_ctx->remaining--;
5664 if (startup_ctx->remaining == 0)
5666 startup_ctx->cb (startup_ctx->cb_cls, NULL);
5667 GNUNET_free (startup_ctx->service);
5668 GNUNET_free (startup_ctx);
5673 schedule_service_start(void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
5675 struct PeerServiceStartContext *peer_ctx = cls;
5676 struct ServiceStartContext *startup_ctx = peer_ctx->start_ctx;
5678 if (startup_ctx->outstanding > startup_ctx->pg->max_concurrent_ssh)
5679 GNUNET_SCHEDULER_add_delayed (
5680 GNUNET_TIME_relative_multiply (
5681 GNUNET_TIME_UNIT_MILLISECONDS,
5683 &schedule_service_start, peer_ctx);
5687 GNUNET_TESTING_daemon_start_service (peer_ctx->daemon,
5688 startup_ctx->service,
5689 startup_ctx->timeout,
5690 &service_start_callback, startup_ctx);
5691 GNUNET_free (peer_ctx);
5697 internal_start(void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
5699 struct InternalStartContext *internal_context = cls;
5701 if ( (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN) != 0)
5706 if ((internal_context->peer->pg->starting
5707 < internal_context->peer->pg->max_concurrent_ssh)
5708 || ((internal_context->hostname != NULL)
5709 && (count_outstanding_at_host (internal_context->hostname,
5710 internal_context->peer->pg)
5711 < internal_context->peer->pg->max_concurrent_ssh)))
5713 if (internal_context->hostname != NULL)
5714 increment_outstanding_at_host (internal_context->hostname,
5715 internal_context->peer->pg);
5716 internal_context->peer->pg->starting++;
5717 internal_context->peer->daemon
5718 = GNUNET_TESTING_daemon_start (internal_context->peer->cfg,
5719 internal_context->timeout,
5721 internal_context->hostname,
5722 internal_context->username,
5723 internal_context->sshport,
5724 internal_context->hostkey,
5725 &internal_hostkey_callback,
5727 &internal_startup_callback,
5732 GNUNET_SCHEDULER_add_delayed (
5733 GNUNET_TIME_relative_multiply (
5734 GNUNET_TIME_UNIT_MILLISECONDS,
5736 &internal_start, internal_context);
5739 #if USE_START_HELPER
5741 struct PeerStartHelperContext
5743 struct GNUNET_TESTING_PeerGroup *pg;
5745 struct HostData *host;
5747 struct GNUNET_OS_Process *proc;
5751 check_peers_started (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
5753 struct PeerStartHelperContext *helper = cls;
5754 enum GNUNET_OS_ProcessStatusType type;
5757 GNUNET_TESTING_NotifyDaemonRunning cb;
5759 if (GNUNET_NO == GNUNET_OS_process_status (helper->proc, &type, &code)) /* Still running, wait some more! */
5761 GNUNET_SCHEDULER_add_delayed(GNUNET_CONSTANTS_EXEC_WAIT, &check_peers_started, helper);
5765 helper->pg->starting--;
5766 if (helper->pg->starting == 0) /* All peers have finished starting! */
5768 /* Call the peer started callback for each peer, set proper FSM state (?) */
5769 for (i = 0; i < helper->pg->total; i++)
5771 cb = helper->pg->peers[i].daemon->cb;
5772 helper->pg->peers[i].daemon->cb = NULL;
5773 helper->pg->peers[i].daemon->running = GNUNET_YES;
5774 helper->pg->peers[i].daemon->phase = SP_START_DONE;
5777 if ((type != GNUNET_OS_PROCESS_EXITED) || (code != 0))
5778 cb (helper->pg->peers[i].daemon->cb_cls,
5779 &helper->pg->peers[i].daemon->id,
5780 helper->pg->peers[i].daemon->cfg, helper->pg->peers[i].daemon,
5781 "Failed to execute peerStartHelper.pl, or return code bad!");
5783 cb (helper->pg->peers[i].daemon->cb_cls,
5784 &helper->pg->peers[i].daemon->id,
5785 helper->pg->peers[i].daemon->cfg, helper->pg->peers[i].daemon,
5792 GNUNET_OS_process_close(helper->proc);
5796 start_peer_helper (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
5798 struct PeerStartHelperContext *helper = cls;
5799 char *baseservicehome;
5802 /* ssh user@host peerStartHelper /path/to/basedirectory */
5803 GNUNET_assert(GNUNET_OK == GNUNET_CONFIGURATION_get_value_string (helper->pg->cfg, "PATHS", "SERVICEHOME",
5805 GNUNET_asprintf(&tempdir, "%s/%s/", baseservicehome, helper->host->hostname);
5806 if (NULL != helper->host->username)
5807 GNUNET_asprintf (&arg, "%s@%s", helper->host->username, helper->host->hostname);
5809 GNUNET_asprintf (&arg, "%s", helper->host->hostname);
5811 /* FIXME: Doesn't support ssh_port option! */
5812 helper->proc = GNUNET_OS_start_process (NULL, NULL, "ssh", "ssh", arg,
5813 "peerStartHelper.pl", tempdir, NULL);
5814 GNUNET_assert(helper->proc != NULL);
5815 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "starting peers with cmd ssh %s %s %s\n", arg, "peerStartHelper.pl", tempdir);
5816 GNUNET_SCHEDULER_add_now (&check_peers_started, helper);
5817 GNUNET_free (tempdir);
5818 GNUNET_free (baseservicehome);
5824 * Function which continues a peer group starting up
5825 * after successfully generating hostkeys for each peer.
5827 * @param pg the peer group to continue starting
5831 GNUNET_TESTING_daemons_continue_startup(struct GNUNET_TESTING_PeerGroup *pg)
5835 #if USE_START_HELPER
5836 if ((pg->num_hosts > 0) && (pg->hostkey_data != NULL))
5838 struct PeerStartHelperContext *helper;
5839 pg->starting = pg->num_hosts;
5840 for (i = 0; i < pg->num_hosts; i++)
5842 helper = GNUNET_malloc(sizeof(struct PeerStartHelperContext));
5844 helper->host = &pg->hosts[i];
5845 GNUNET_SCHEDULER_add_now(&start_peer_helper, helper);
5851 for (i = 0; i < pg->total; i++)
5853 GNUNET_SCHEDULER_add_now (&internal_continue_startup,
5854 &pg->peers[i].internal_context);
5859 for (i = 0; i < pg->total; i++)
5861 GNUNET_SCHEDULER_add_now (&internal_continue_startup,
5862 &pg->peers[i].internal_context);
5867 #if USE_START_HELPER
5869 call_hostkey_callbacks (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
5871 struct GNUNET_TESTING_PeerGroup *pg = cls;
5873 for (i = 0; i < pg->total; i++)
5875 if (pg->peers[i].internal_context.hostkey_callback != NULL)
5876 pg->peers[i].internal_context.hostkey_callback (pg->peers[i].internal_context.hostkey_cls,
5877 &pg->peers[i].daemon->id,
5878 pg->peers[i].daemon,
5882 if (pg->peers[0].internal_context.hostkey_callback == NULL)
5883 GNUNET_TESTING_daemons_continue_startup (pg);
5888 * Start count gnunet instances with the same set of transports and
5889 * applications. The port numbers (any option called "PORT") will be
5890 * adjusted to ensure that no two peers running on the same system
5891 * have the same port(s) in their respective configurations.
5893 * @param cfg configuration template to use
5894 * @param total number of daemons to start
5895 * @param max_concurrent_connections for testing, how many peers can
5896 * we connect to simultaneously
5897 * @param max_concurrent_ssh when starting with ssh, how many ssh
5898 * connections will we allow at once (based on remote hosts allowed!)
5899 * @param timeout total time allowed for peers to start
5900 * @param hostkey_callback function to call on each peers hostkey generation
5901 * if NULL, peers will be started by this call, if non-null,
5902 * GNUNET_TESTING_daemons_continue_startup must be called after
5903 * successful hostkey generation
5904 * @param hostkey_cls closure for hostkey callback
5905 * @param cb function to call on each daemon that was started
5906 * @param cb_cls closure for cb
5907 * @param connect_callback function to call each time two hosts are connected
5908 * @param connect_callback_cls closure for connect_callback
5909 * @param hostnames linked list of host structs to use to start peers on
5910 * (NULL to run on localhost only)
5912 * @return NULL on error, otherwise handle to control peer group
5914 struct GNUNET_TESTING_PeerGroup *
5915 GNUNET_TESTING_daemons_start(const struct GNUNET_CONFIGURATION_Handle *cfg,
5917 unsigned int max_concurrent_connections,
5918 unsigned int max_concurrent_ssh,
5919 struct GNUNET_TIME_Relative timeout,
5920 GNUNET_TESTING_NotifyHostkeyCreated hostkey_callback,
5922 GNUNET_TESTING_NotifyDaemonRunning cb,
5924 GNUNET_TESTING_NotifyConnection connect_callback,
5925 void *connect_callback_cls,
5926 const struct GNUNET_TESTING_Host *hostnames)
5928 struct GNUNET_TESTING_PeerGroup *pg;
5929 const struct GNUNET_TESTING_Host *hostpos;
5930 const char *hostname;
5931 const char *username;
5932 char *baseservicehome;
5933 char *newservicehome;
5935 char *hostkeys_file;
5938 struct GNUNET_DISK_FileHandle *fd;
5939 struct GNUNET_CONFIGURATION_Handle *pcfg;
5941 struct OutstandingSSH *ssh_entry;
5942 unsigned int hostcnt;
5949 uint64_t total_hostkeys;
5950 struct GNUNET_OS_Process *proc;
5961 pg = GNUNET_malloc (sizeof (struct GNUNET_TESTING_PeerGroup));
5963 pg->notify_connection = connect_callback;
5964 pg->notify_connection_cls = connect_callback_cls;
5966 pg->max_timeout = GNUNET_TIME_relative_to_absolute (timeout);
5967 pg->peers = GNUNET_malloc (total * sizeof (struct PeerData));
5968 pg->max_outstanding_connections = max_concurrent_connections;
5969 pg->max_concurrent_ssh = max_concurrent_ssh;
5970 if (NULL != hostnames)
5973 hostpos = hostnames;
5974 while (hostpos != NULL)
5976 hostpos = hostpos->next;
5979 pg->hosts = GNUNET_malloc (off * sizeof (struct HostData));
5982 hostpos = hostnames;
5983 while (hostpos != NULL)
5985 pg->hosts[off].minport = LOW_PORT;
5986 pg->hosts[off].hostname = GNUNET_strdup (hostpos->hostname);
5987 if (hostpos->username != NULL)
5988 pg->hosts[off].username = GNUNET_strdup (hostpos->username);
5989 pg->hosts[off].sshport = hostpos->port;
5990 hostpos = hostpos->next;
6000 pg->num_hosts = off;
6008 /* Create the servicehome directory for each remote peer */
6009 GNUNET_assert(GNUNET_OK ==
6010 GNUNET_CONFIGURATION_get_value_string (cfg, "PATHS", "SERVICEHOME",
6012 for (i = 0; i < pg->num_hosts; i++)
6014 ssh_entry = GNUNET_malloc(sizeof(struct OutstandingSSH));
6015 ssh_entry->hostname = pg->hosts[i].hostname; /* Don't free! */
6016 GNUNET_CONTAINER_DLL_insert(pg->ssh_head, pg->ssh_tail, ssh_entry);
6017 GNUNET_asprintf(&tmpdir, "%s/%s", baseservicehome, pg->hosts[i].hostname);
6018 if (NULL != pg->hosts[i].username)
6019 GNUNET_asprintf (&arg, "%s@%s", pg->hosts[i].username,
6020 pg->hosts[i].hostname);
6022 GNUNET_asprintf (&arg, "%s", pg->hosts[i].hostname);
6023 if (pg->hosts[i].sshport != 0)
6025 GNUNET_asprintf (&ssh_port_str, "%d", pg->hosts[i].sshport);
6026 proc = GNUNET_OS_start_process (NULL, NULL, "ssh", "ssh", "-P",
6031 arg, "mkdir -p", tmpdir,
6035 proc = GNUNET_OS_start_process (NULL, NULL, "ssh", "ssh", arg,
6036 "mkdir -p", tmpdir, NULL);
6037 GNUNET_assert(proc != NULL);
6038 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
6039 "Creating remote dir with command ssh %s %s %s\n", arg,
6040 " mkdir -p ", tmpdir);
6041 GNUNET_free(tmpdir);
6043 GNUNET_OS_process_wait (proc);
6044 GNUNET_OS_process_close(proc);
6046 GNUNET_free(baseservicehome);
6047 baseservicehome = NULL;
6049 if (GNUNET_YES == GNUNET_CONFIGURATION_get_value_string (cfg, "TESTING",
6053 if (GNUNET_YES != GNUNET_DISK_file_test (hostkeys_file))
6054 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
6055 _("Could not read hostkeys file!\n"));
6058 /* Check hostkey file size, read entire thing into memory */
6059 fd = GNUNET_DISK_file_open (hostkeys_file,
6060 GNUNET_DISK_OPEN_READ,
6061 GNUNET_DISK_PERM_NONE);
6064 GNUNET_log_strerror_file (GNUNET_ERROR_TYPE_ERROR,
6067 GNUNET_free (hostkeys_file);
6068 for (i=0;i<pg->num_hosts;i++)
6070 GNUNET_free (pg->hosts[i].hostname);
6071 GNUNET_free_non_null (pg->hosts[i].username);
6073 GNUNET_free (pg->peers);
6074 GNUNET_free (pg->hosts);
6079 if (GNUNET_YES != GNUNET_DISK_file_size (hostkeys_file, &fs,
6083 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
6084 "Found file size %llu for hostkeys, expect hostkeys to be size %d\n",
6085 fs, HOSTKEYFILESIZE);
6087 if (0 != (fs % HOSTKEYFILESIZE))
6089 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
6090 "File size %llu seems incorrect for hostkeys...\n",
6095 total_hostkeys = fs / HOSTKEYFILESIZE;
6096 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
6097 "Will read %llu hostkeys from file\n",
6099 pg->hostkey_data = GNUNET_malloc_large (fs);
6100 GNUNET_assert (fs == GNUNET_DISK_file_read (fd, pg->hostkey_data, fs));
6102 GNUNET_assert(GNUNET_OK == GNUNET_DISK_file_close(fd));
6104 GNUNET_free(hostkeys_file);
6107 for (off = 0; off < total; off++)
6111 hostname = pg->hosts[off % hostcnt].hostname;
6112 username = pg->hosts[off % hostcnt].username;
6113 sshport = pg->hosts[off % hostcnt].sshport;
6114 pcfg = make_config (cfg, off, &pg->hosts[off % hostcnt].minport,
6115 &upnum, hostname, &fdnum);
6122 pcfg = make_config (cfg, off, &minport, &upnum, hostname, &fdnum);
6127 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
6128 _("Could not create configuration for peer number %u on `%s'!\n"),
6130 hostname == NULL ? "localhost" : hostname);
6135 == GNUNET_CONFIGURATION_get_value_string (pcfg, "PATHS",
6139 if (hostname != NULL)
6140 GNUNET_asprintf (&newservicehome, "%s/%s/%d/", baseservicehome, hostname, off);
6142 GNUNET_asprintf (&newservicehome, "%s/%d/", baseservicehome, off);
6143 GNUNET_free (baseservicehome);
6144 baseservicehome = NULL;
6148 tmpdir = getenv ("TMPDIR");
6149 tmpdir = tmpdir ? tmpdir : "/tmp";
6150 if (hostname != NULL)
6151 GNUNET_asprintf (&newservicehome, "%s/%s/%s/%d/", tmpdir, hostname,
6152 "gnunet-testing-test-test", off);
6154 GNUNET_asprintf (&newservicehome, "%s/%s/%d/", tmpdir,
6155 "gnunet-testing-test-test", off);
6157 GNUNET_CONFIGURATION_set_value_string (pcfg, "PATHS", "SERVICEHOME",
6159 GNUNET_free (newservicehome);
6160 pg->peers[off].cfg = pcfg;
6161 pg->peers[off].pg = pg;
6162 pg->peers[off].internal_context.peer = &pg->peers[off];
6163 pg->peers[off].internal_context.timeout = timeout;
6164 pg->peers[off].internal_context.hostname = hostname;
6165 pg->peers[off].internal_context.username = username;
6166 pg->peers[off].internal_context.sshport = sshport;
6167 if (pg->hostkey_data != NULL)
6168 pg->peers[off].internal_context.hostkey = &pg->hostkey_data[off
6170 pg->peers[off].internal_context.hostkey_callback = hostkey_callback;
6171 pg->peers[off].internal_context.hostkey_cls = hostkey_cls;
6172 pg->peers[off].internal_context.start_cb = cb;
6173 pg->peers[off].internal_context.start_cb_cls = cb_cls;
6174 #if !USE_START_HELPER
6175 GNUNET_SCHEDULER_add_now (&internal_start,
6176 &pg->peers[off].internal_context);
6178 if ((pg->hostkey_data != NULL) && (hostcnt > 0))
6180 pg->peers[off].daemon
6181 = GNUNET_TESTING_daemon_start (pcfg,
6187 pg->peers[off].internal_context.hostkey,
6188 &internal_hostkey_callback,
6189 &pg->peers[off].internal_context,
6190 &internal_startup_callback,
6191 &pg->peers[off].internal_context);
6193 * At this point, given that we had a hostkeyfile,
6194 * we can call the hostkey callback!
6195 * But first, we should copy (rsync) all of the configs
6196 * and hostkeys to the remote peers. Then let topology
6197 * creation happen, then call the peer start helper processes,
6198 * then set pg->whatever_phase for each peer and let them
6199 * enter the fsm to get the HELLO's for peers and start connecting.
6204 GNUNET_SCHEDULER_add_now (&internal_start,
6205 &pg->peers[off].internal_context);
6211 #if USE_START_HELPER /* Now the peergroup has been set up, hostkeys and configs written to files. */
6212 if ((pg->hostkey_data != NULL) && (hostcnt > 0))
6214 for (off = 0; off < hostcnt; off++)
6219 hostname = pg->hosts[off % hostcnt].hostname;
6220 username = pg->hosts[off % hostcnt].username;
6221 sshport = pg->hosts[off % hostcnt].sshport;
6231 == GNUNET_CONFIGURATION_get_value_string (cfg, "PATHS",
6235 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "baseservice home is %s\n", baseservicehome);
6236 if (hostname != NULL)
6237 GNUNET_asprintf (&newservicehome, "%s/%s/", baseservicehome, hostname);
6239 GNUNET_asprintf (&newservicehome, "%s/", baseservicehome);
6240 GNUNET_free (baseservicehome);
6241 baseservicehome = NULL;
6245 tmpdir = getenv ("TMPDIR");
6246 tmpdir = tmpdir ? tmpdir : "/tmp";
6247 if (hostname != NULL)
6248 GNUNET_asprintf (&newservicehome, "%s/%s/%s/", tmpdir, hostname,
6249 "gnunet-testing-test-test");
6251 GNUNET_asprintf (&newservicehome, "%s/%s/", tmpdir,
6252 "gnunet-testing-test-test", off);
6255 if (NULL != username)
6256 GNUNET_asprintf (&arg,
6259 pg->hosts[off].hostname,
6262 GNUNET_asprintf (&arg,
6264 pg->hosts[off].hostname,
6267 /* FIXME: Doesn't support ssh_port option! */
6268 proc = GNUNET_OS_start_process (NULL, NULL,
6270 "rsync", "-r", newservicehome, arg, NULL);
6272 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
6273 "copying directory with command rsync -r %s %s\n",
6274 newservicehome, arg);
6275 GNUNET_free(newservicehome);
6279 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
6280 _("Could not start `%s' process to copy configuration directory.\n"),
6284 GNUNET_OS_process_wait (proc);
6285 GNUNET_OS_process_close (proc);
6287 /* Now all the configuration files and hostkeys are copied to the remote host. Call the hostkey callback for each peer! */
6288 GNUNET_SCHEDULER_add_now (&call_hostkey_callbacks, pg);
6295 * Get a daemon by number, so callers don't have to do nasty
6296 * offsetting operation.
6298 struct GNUNET_TESTING_Daemon *
6299 GNUNET_TESTING_daemon_get(struct GNUNET_TESTING_PeerGroup *pg,
6300 unsigned int position)
6302 if (position < pg->total)
6303 return pg->peers[position].daemon;
6308 * Get a daemon by peer identity, so callers can
6309 * retrieve the daemon without knowing it's offset.
6311 * @param pg the peer group to retrieve the daemon from
6312 * @param peer_id the peer identity of the daemon to retrieve
6314 * @return the daemon on success, or NULL if no such peer identity is found
6316 struct GNUNET_TESTING_Daemon *
6317 GNUNET_TESTING_daemon_get_by_id(struct GNUNET_TESTING_PeerGroup *pg,
6318 struct GNUNET_PeerIdentity *peer_id)
6322 for (i = 0; i < pg->total; i++)
6324 if (0 == memcmp (&pg->peers[i].daemon->id, peer_id,
6325 sizeof(struct GNUNET_PeerIdentity)))
6326 return pg->peers[i].daemon;
6332 * Prototype of a function that will be called when a
6333 * particular operation was completed the testing library.
6335 * @param cls closure (a struct RestartContext)
6336 * @param id id of the peer that was restarted
6337 * @param cfg handle to the configuration of the peer
6338 * @param d handle to the daemon that was restarted
6339 * @param emsg NULL on success
6342 restart_callback(void *cls, const struct GNUNET_PeerIdentity *id,
6343 const struct GNUNET_CONFIGURATION_Handle *cfg,
6344 struct GNUNET_TESTING_Daemon *d, const char *emsg)
6346 struct RestartContext *restart_context = cls;
6350 restart_context->peers_restarted++;
6354 restart_context->peers_restart_failed++;
6357 if (restart_context->peers_restarted == restart_context->peer_group->total)
6359 restart_context->callback (restart_context->callback_cls, NULL);
6360 GNUNET_free (restart_context);
6362 else if (restart_context->peers_restart_failed
6363 + restart_context->peers_restarted == restart_context->peer_group->total)
6365 restart_context->callback (restart_context->callback_cls,
6366 "Failed to restart peers!");
6367 GNUNET_free (restart_context);
6373 * Callback for informing us about a successful
6374 * or unsuccessful churn stop call.
6376 * @param cls a ChurnContext
6377 * @param emsg NULL on success, non-NULL on failure
6381 churn_stop_callback(void *cls, const char *emsg)
6383 struct ShutdownContext *shutdown_ctx = cls;
6384 struct ChurnContext *churn_ctx = shutdown_ctx->cb_cls;
6385 unsigned int total_left;
6386 char *error_message;
6388 error_message = NULL;
6389 shutdown_ctx->outstanding--;
6393 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
6394 "Churn stop callback failed with error `%s'\n", emsg);
6395 churn_ctx->num_failed_stop++;
6399 churn_ctx->num_to_stop--;
6402 total_left = (churn_ctx->num_to_stop - churn_ctx->num_failed_stop)
6403 + (churn_ctx->num_to_start - churn_ctx->num_failed_start);
6405 if (total_left == 0)
6407 if ((churn_ctx->num_failed_stop > 0) || (churn_ctx->num_failed_start > 0))
6411 "Churn didn't complete successfully, %u peers failed to start %u peers failed to be stopped!",
6412 churn_ctx->num_failed_start,
6413 churn_ctx->num_failed_stop);
6415 churn_ctx->cb (churn_ctx->cb_cls, error_message);
6416 GNUNET_free_non_null (error_message);
6417 GNUNET_free (churn_ctx);
6418 GNUNET_free (shutdown_ctx);
6423 * Count the number of running peers.
6425 * @param pg handle for the peer group
6427 * @return the number of currently running peers in the peer group
6430 GNUNET_TESTING_daemons_running(struct GNUNET_TESTING_PeerGroup *pg)
6433 unsigned int running = 0;
6434 for (i = 0; i < pg->total; i++)
6436 if (pg->peers[i].daemon->running == GNUNET_YES)
6438 GNUNET_assert (running != -1);
6446 * Task to rate limit the number of outstanding peer shutdown
6447 * requests. This is necessary for making sure we don't do
6448 * too many ssh connections at once, but is generally nicer
6449 * to any system as well (graduated task starts, as opposed
6450 * to calling gnunet-arm N times all at once).
6453 schedule_churn_shutdown_task(void *cls,
6454 const struct GNUNET_SCHEDULER_TaskContext *tc)
6456 struct PeerShutdownContext *peer_shutdown_ctx = cls;
6457 struct ShutdownContext *shutdown_ctx;
6458 struct ChurnContext *churn_ctx;
6459 GNUNET_assert (peer_shutdown_ctx != NULL);
6460 shutdown_ctx = peer_shutdown_ctx->shutdown_ctx;
6461 GNUNET_assert (shutdown_ctx != NULL);
6462 churn_ctx = (struct ChurnContext *) shutdown_ctx->cb_cls;
6463 if (shutdown_ctx->outstanding > churn_ctx->pg->max_concurrent_ssh)
6464 GNUNET_SCHEDULER_add_delayed (
6465 GNUNET_TIME_relative_multiply (
6466 GNUNET_TIME_UNIT_MILLISECONDS,
6468 &schedule_churn_shutdown_task,
6472 shutdown_ctx->outstanding++;
6473 if (churn_ctx->service != NULL)
6474 GNUNET_TESTING_daemon_stop_service (peer_shutdown_ctx->daemon,
6476 shutdown_ctx->timeout, shutdown_ctx->cb,
6479 GNUNET_TESTING_daemon_stop (peer_shutdown_ctx->daemon,
6480 shutdown_ctx->timeout, shutdown_ctx->cb,
6481 shutdown_ctx, GNUNET_NO, GNUNET_YES);
6482 GNUNET_free (peer_shutdown_ctx);
6488 * Simulate churn by stopping some peers (and possibly
6489 * re-starting others if churn is called multiple times). This
6490 * function can only be used to create leave-join churn (peers "never"
6491 * leave for good). First "voff" random peers that are currently
6492 * online will be taken offline; then "von" random peers that are then
6493 * offline will be put back online. No notifications will be
6494 * generated for any of these operations except for the callback upon
6497 * @param pg handle for the peer group
6498 * @param service the service to churn off/on, NULL to churn peer
6499 * @param voff number of peers that should go offline
6500 * @param von number of peers that should come back online;
6501 * must be zero on first call (since "testbed_start"
6502 * always starts all of the peers)
6503 * @param timeout how long to wait for operations to finish before
6505 * @param cb function to call at the end
6506 * @param cb_cls closure for cb
6509 GNUNET_TESTING_daemons_churn(struct GNUNET_TESTING_PeerGroup *pg,
6511 unsigned int voff, unsigned int von,
6512 struct GNUNET_TIME_Relative timeout,
6513 GNUNET_TESTING_NotifyCompletion cb, void *cb_cls)
6515 struct ChurnContext *churn_ctx;
6516 struct ShutdownContext *shutdown_ctx;
6517 struct PeerShutdownContext *peer_shutdown_ctx;
6518 struct PeerRestartContext *peer_restart_ctx;
6519 struct ChurnRestartContext *churn_startup_ctx;
6521 unsigned int running;
6522 unsigned int stopped;
6523 unsigned int total_running;
6524 unsigned int total_stopped;
6526 unsigned int *running_arr;
6527 unsigned int *stopped_arr;
6528 unsigned int *running_permute;
6529 unsigned int *stopped_permute;
6532 shutdown_ctx = NULL;
6533 peer_shutdown_ctx = NULL;
6534 peer_restart_ctx = NULL;
6535 churn_startup_ctx = NULL;
6540 if ((von == 0) && (voff == 0)) /* No peers at all? */
6546 for (i = 0; i < pg->total; i++)
6548 if (service == NULL)
6550 if (pg->peers[i].daemon->running == GNUNET_YES)
6552 GNUNET_assert (running != -1);
6557 GNUNET_assert (stopped != -1);
6563 /* FIXME: make churned services a list! */
6564 pos = pg->peers[i].daemon->churned_services;
6565 /* FIXME: while (pos != NULL) */
6569 if (0 == strcasecmp(pos, service))
6575 GNUNET_assert (stopped != -1);
6577 /* FIXME: pos = pos->next; */
6581 GNUNET_assert (running != -1);
6589 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
6590 "Trying to stop more peers (%d) than are currently running (%d)!\n", voff, running);
6591 cb (cb_cls, "Trying to stop more peers than are currently running!");
6597 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
6598 "Trying to start more peers (%d) than are currently stopped (%d)!\n", von, stopped);
6599 cb (cb_cls, "Trying to start more peers than are currently stopped!");
6603 churn_ctx = GNUNET_malloc (sizeof (struct ChurnContext));
6605 if (service != NULL)
6606 churn_ctx->service = GNUNET_strdup(service);
6609 running_arr = GNUNET_malloc (running * sizeof (unsigned int));
6613 stopped_arr = GNUNET_malloc (stopped * sizeof (unsigned int));
6615 running_permute = NULL;
6616 stopped_permute = NULL;
6619 running_permute = GNUNET_CRYPTO_random_permute (GNUNET_CRYPTO_QUALITY_WEAK,
6622 stopped_permute = GNUNET_CRYPTO_random_permute (GNUNET_CRYPTO_QUALITY_WEAK,
6625 total_running = running;
6626 total_stopped = stopped;
6630 churn_ctx->num_to_start = von;
6631 churn_ctx->num_to_stop = voff;
6633 churn_ctx->cb_cls = cb_cls;
6636 for (i = 0; i < pg->total; i++)
6638 if (service == NULL)
6640 if (pg->peers[i].daemon->running == GNUNET_YES)
6642 GNUNET_assert ((running_arr != NULL) && (total_running > running));
6643 running_arr[running] = i;
6648 GNUNET_assert ((stopped_arr != NULL) && (total_stopped > stopped));
6649 stopped_arr[stopped] = i;
6655 /* FIXME: make churned services a list! */
6656 pos = pg->peers[i].daemon->churned_services;
6657 /* FIXME: while (pos != NULL) */
6660 GNUNET_assert ((stopped_arr != NULL) && (total_stopped > stopped));
6661 stopped_arr[stopped] = i;
6663 /* FIXME: pos = pos->next; */
6667 GNUNET_assert ((running_arr != NULL) && (total_running > running));
6668 running_arr[running] = i;
6674 GNUNET_assert (running >= voff);
6677 shutdown_ctx = GNUNET_malloc (sizeof (struct ShutdownContext));
6678 shutdown_ctx->cb = &churn_stop_callback;
6679 shutdown_ctx->cb_cls = churn_ctx;
6680 shutdown_ctx->total_peers = voff;
6681 shutdown_ctx->timeout = timeout;
6684 for (i = 0; i < voff; i++)
6687 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Stopping peer %d!\n", running_arr[running_permute[i]]);
6689 GNUNET_assert (running_arr != NULL);
6690 peer_shutdown_ctx = GNUNET_malloc (sizeof (struct PeerShutdownContext));
6691 peer_shutdown_ctx->daemon
6692 = pg->peers[running_arr[running_permute[i]]].daemon;
6693 peer_shutdown_ctx->shutdown_ctx = shutdown_ctx;
6694 GNUNET_SCHEDULER_add_now (&schedule_churn_shutdown_task,
6698 GNUNET_assert (stopped >= von);
6701 churn_startup_ctx = GNUNET_malloc (sizeof (struct ChurnRestartContext));
6702 churn_startup_ctx->churn_ctx = churn_ctx;
6703 churn_startup_ctx->timeout = timeout;
6704 churn_startup_ctx->pg = pg;
6706 for (i = 0; i < von; i++)
6709 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Starting up peer %d!\n", stopped_arr[stopped_permute[i]]);
6711 GNUNET_assert (stopped_arr != NULL);
6712 peer_restart_ctx = GNUNET_malloc (sizeof (struct PeerRestartContext));
6713 peer_restart_ctx->churn_restart_ctx = churn_startup_ctx;
6714 peer_restart_ctx->daemon
6715 = pg->peers[stopped_arr[stopped_permute[i]]].daemon;
6716 GNUNET_SCHEDULER_add_now (&schedule_churn_restart, peer_restart_ctx);
6719 GNUNET_free_non_null (running_arr);
6720 GNUNET_free_non_null (stopped_arr);
6721 GNUNET_free_non_null (running_permute);
6722 GNUNET_free_non_null (stopped_permute);
6726 * Start a given service for each of the peers in the peer group.
6728 * @param pg handle for the peer group
6729 * @param service the service to start
6730 * @param timeout how long to wait for operations to finish before
6732 * @param cb function to call once finished
6733 * @param cb_cls closure for cb
6737 GNUNET_TESTING_daemons_start_service (struct GNUNET_TESTING_PeerGroup *pg,
6739 struct GNUNET_TIME_Relative timeout,
6740 GNUNET_TESTING_NotifyCompletion cb,
6743 struct ServiceStartContext *start_ctx;
6744 struct PeerServiceStartContext *peer_start_ctx;
6747 GNUNET_assert(service != NULL);
6749 start_ctx = GNUNET_malloc(sizeof(struct ServiceStartContext));
6751 start_ctx->remaining = pg->total;
6753 start_ctx->cb_cls = cb_cls;
6754 start_ctx->service = GNUNET_strdup(service);
6755 start_ctx->timeout = timeout;
6757 for (i = 0; i < pg->total; i++)
6760 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Starting up service %s on peer %d!\n", service, stopped_arr[stopped_permute[i]]);
6762 peer_start_ctx = GNUNET_malloc (sizeof (struct PeerServiceStartContext));
6763 peer_start_ctx->start_ctx = start_ctx;
6764 peer_start_ctx->daemon = pg->peers[i].daemon;
6765 GNUNET_SCHEDULER_add_now (&schedule_service_start, peer_start_ctx);
6770 * Restart all peers in the given group.
6772 * @param pg the handle to the peer group
6773 * @param callback function to call on completion (or failure)
6774 * @param callback_cls closure for the callback function
6777 GNUNET_TESTING_daemons_restart(struct GNUNET_TESTING_PeerGroup *pg,
6778 GNUNET_TESTING_NotifyCompletion callback,
6781 struct RestartContext *restart_context;
6786 restart_context = GNUNET_malloc (sizeof (struct RestartContext));
6787 restart_context->peer_group = pg;
6788 restart_context->peers_restarted = 0;
6789 restart_context->callback = callback;
6790 restart_context->callback_cls = callback_cls;
6792 for (off = 0; off < pg->total; off++)
6794 GNUNET_TESTING_daemon_restart (pg->peers[off].daemon,
6795 &restart_callback, restart_context);
6802 * Start or stop an individual peer from the given group.
6804 * @param pg handle to the peer group
6805 * @param offset which peer to start or stop
6806 * @param desired_status GNUNET_YES to have it running, GNUNET_NO to stop it
6807 * @param timeout how long to wait for shutdown
6808 * @param cb function to call at the end
6809 * @param cb_cls closure for cb
6812 GNUNET_TESTING_daemons_vary(struct GNUNET_TESTING_PeerGroup *pg,
6813 unsigned int offset, int desired_status,
6814 struct GNUNET_TIME_Relative timeout,
6815 GNUNET_TESTING_NotifyCompletion cb, void *cb_cls)
6817 struct ShutdownContext *shutdown_ctx;
6818 struct ChurnRestartContext *startup_ctx;
6819 struct ChurnContext *churn_ctx;
6821 if (GNUNET_NO == desired_status)
6823 if (NULL != pg->peers[offset].daemon)
6825 shutdown_ctx = GNUNET_malloc (sizeof (struct ShutdownContext));
6826 churn_ctx = GNUNET_malloc (sizeof (struct ChurnContext));
6827 churn_ctx->num_to_start = 0;
6828 churn_ctx->num_to_stop = 1;
6830 churn_ctx->cb_cls = cb_cls;
6831 shutdown_ctx->cb_cls = churn_ctx;
6832 GNUNET_TESTING_daemon_stop (pg->peers[offset].daemon, timeout,
6833 &churn_stop_callback, shutdown_ctx,
6834 GNUNET_NO, GNUNET_YES);
6837 else if (GNUNET_YES == desired_status)
6839 if (NULL == pg->peers[offset].daemon)
6841 startup_ctx = GNUNET_malloc (sizeof (struct ChurnRestartContext));
6842 churn_ctx = GNUNET_malloc (sizeof (struct ChurnContext));
6843 churn_ctx->num_to_start = 1;
6844 churn_ctx->num_to_stop = 0;
6846 churn_ctx->cb_cls = cb_cls;
6847 startup_ctx->churn_ctx = churn_ctx;
6848 GNUNET_TESTING_daemon_start_stopped (pg->peers[offset].daemon,
6849 timeout, &churn_start_callback,
6859 * Callback for shutting down peers in a peer group.
6861 * @param cls closure (struct ShutdownContext)
6862 * @param emsg NULL on success
6865 internal_shutdown_callback(void *cls, const char *emsg)
6867 struct PeerShutdownContext *peer_shutdown_ctx = cls;
6868 struct ShutdownContext *shutdown_ctx = peer_shutdown_ctx->shutdown_ctx;
6870 struct OutstandingSSH *ssh_pos;
6872 shutdown_ctx->outstanding--;
6873 if (peer_shutdown_ctx->daemon->hostname != NULL)
6874 decrement_outstanding_at_host (peer_shutdown_ctx->daemon->hostname,
6879 shutdown_ctx->peers_down++;
6883 shutdown_ctx->peers_failed++;
6886 if ((shutdown_ctx->cb != NULL) && (shutdown_ctx->peers_down
6887 + shutdown_ctx->peers_failed == shutdown_ctx->total_peers))
6889 if (shutdown_ctx->peers_failed > 0)
6890 shutdown_ctx->cb (shutdown_ctx->cb_cls,
6891 "Not all peers successfully shut down!");
6893 shutdown_ctx->cb (shutdown_ctx->cb_cls, NULL);
6895 GNUNET_free (shutdown_ctx->pg->peers);
6896 GNUNET_free_non_null(shutdown_ctx->pg->hostkey_data);
6897 for (off = 0; off < shutdown_ctx->pg->num_hosts; off++)
6899 GNUNET_free (shutdown_ctx->pg->hosts[off].hostname);
6900 GNUNET_free_non_null (shutdown_ctx->pg->hosts[off].username);
6902 GNUNET_free_non_null (shutdown_ctx->pg->hosts);
6903 while (NULL != (ssh_pos = shutdown_ctx->pg->ssh_head))
6905 GNUNET_CONTAINER_DLL_remove(shutdown_ctx->pg->ssh_head, shutdown_ctx->pg->ssh_tail, ssh_pos);
6906 GNUNET_free(ssh_pos);
6908 GNUNET_free (shutdown_ctx->pg);
6909 GNUNET_free (shutdown_ctx);
6911 GNUNET_free(peer_shutdown_ctx);
6916 * Task to rate limit the number of outstanding peer shutdown
6917 * requests. This is necessary for making sure we don't do
6918 * too many ssh connections at once, but is generally nicer
6919 * to any system as well (graduated task starts, as opposed
6920 * to calling gnunet-arm N times all at once).
6923 schedule_shutdown_task(void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
6925 struct PeerShutdownContext *peer_shutdown_ctx = cls;
6926 struct ShutdownContext *shutdown_ctx;
6928 GNUNET_assert (peer_shutdown_ctx != NULL);
6929 shutdown_ctx = peer_shutdown_ctx->shutdown_ctx;
6930 GNUNET_assert (shutdown_ctx != NULL);
6932 if ((shutdown_ctx->outstanding < shutdown_ctx->pg->max_concurrent_ssh)
6933 || ((peer_shutdown_ctx->daemon->hostname != NULL)
6934 && (count_outstanding_at_host (peer_shutdown_ctx->daemon->hostname,
6936 < shutdown_ctx->pg->max_concurrent_ssh)))
6938 if (peer_shutdown_ctx->daemon->hostname != NULL)
6939 increment_outstanding_at_host (peer_shutdown_ctx->daemon->hostname,
6941 shutdown_ctx->outstanding++;
6942 GNUNET_TESTING_daemon_stop (peer_shutdown_ctx->daemon,
6943 shutdown_ctx->timeout,
6944 &internal_shutdown_callback, peer_shutdown_ctx,
6945 shutdown_ctx->delete_files, GNUNET_NO);
6948 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_MILLISECONDS,
6950 &schedule_shutdown_task, peer_shutdown_ctx);
6955 * Read a testing hosts file based on a configuration.
6956 * Returns a DLL of hosts (caller must free!) on success
6957 * or NULL on failure.
6959 * @param cfg a configuration with a testing section
6961 * @return DLL of hosts on success, NULL on failure
6963 struct GNUNET_TESTING_Host *
6964 GNUNET_TESTING_hosts_load (const struct GNUNET_CONFIGURATION_Handle *cfg)
6966 struct GNUNET_TESTING_Host *hosts;
6967 struct GNUNET_TESTING_Host *temphost;
6975 /* Check for a hostfile containing user@host:port triples */
6977 != GNUNET_CONFIGURATION_get_value_string (cfg, "testing", "hostfile",
6984 if (hostfile != NULL)
6986 if (GNUNET_OK != GNUNET_DISK_file_test (hostfile))
6987 GNUNET_DISK_fn_write (hostfile, NULL, 0, GNUNET_DISK_PERM_USER_READ
6988 | GNUNET_DISK_PERM_USER_WRITE);
6989 if ((0 != STAT (hostfile, &frstat)) || (frstat.st_size == 0))
6991 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
6992 "Could not open file specified for host list, ending test!");
6993 GNUNET_free(hostfile);
6997 data = GNUNET_malloc_large (frstat.st_size);
6998 GNUNET_assert(data != NULL);
7000 != GNUNET_DISK_fn_read (hostfile, data, frstat.st_size))
7003 GNUNET_ERROR_TYPE_ERROR,
7004 "Could not read file %s specified for host list, ending test!",
7006 GNUNET_free (hostfile);
7011 GNUNET_free_non_null(hostfile);
7015 while (count < frstat.st_size - 1)
7018 if (((data[count] == '\n')) && (buf != &data[count]))
7021 temphost = GNUNET_malloc(sizeof(struct GNUNET_TESTING_Host));
7022 ret = sscanf (buf, "%a[a-zA-Z0-9_]@%a[a-zA-Z0-9.]:%hd",
7023 &temphost->username, &temphost->hostname,
7028 GNUNET_ERROR_TYPE_DEBUG,
7029 "Successfully read host %s, port %d and user %s from file\n",
7030 temphost->hostname, temphost->port,
7031 temphost->username);
7035 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
7036 "Error reading line `%s' in hostfile\n", buf);
7037 GNUNET_free(temphost);
7038 buf = &data[count + 1];
7041 temphost->next = hosts;
7043 buf = &data[count + 1];
7045 else if ((data[count] == '\n') || (data[count] == '\0'))
7046 buf = &data[count + 1];
7049 GNUNET_free_non_null(data);
7055 * Shutdown all peers started in the given group.
7057 * @param pg handle to the peer group
7058 * @param timeout how long to wait for shutdown
7059 * @param cb callback to notify upon success or failure
7060 * @param cb_cls closure for cb
7063 GNUNET_TESTING_daemons_stop(struct GNUNET_TESTING_PeerGroup *pg,
7064 struct GNUNET_TIME_Relative timeout,
7065 GNUNET_TESTING_NotifyCompletion cb, void *cb_cls)
7068 struct ShutdownContext *shutdown_ctx;
7069 struct PeerShutdownContext *peer_shutdown_ctx;
7071 struct PeerConnection *conn_iter;
7072 struct PeerConnection *temp_conn;
7075 GNUNET_assert (pg->total > 0);
7077 shutdown_ctx = GNUNET_malloc (sizeof (struct ShutdownContext));
7078 shutdown_ctx->delete_files = GNUNET_CONFIGURATION_get_value_yesno (pg->cfg,
7081 shutdown_ctx->cb = cb;
7082 shutdown_ctx->cb_cls = cb_cls;
7083 shutdown_ctx->total_peers = pg->total;
7084 shutdown_ctx->timeout = timeout;
7085 shutdown_ctx->pg = pg;
7086 /* shtudown_ctx->outstanding = 0; */
7088 for (off = 0; off < pg->total; off++)
7090 GNUNET_assert (NULL != pg->peers[off].daemon);
7091 peer_shutdown_ctx = GNUNET_malloc (sizeof (struct PeerShutdownContext));
7092 peer_shutdown_ctx->daemon = pg->peers[off].daemon;
7093 peer_shutdown_ctx->shutdown_ctx = shutdown_ctx;
7094 GNUNET_SCHEDULER_add_now (&schedule_shutdown_task, peer_shutdown_ctx);
7096 if (NULL != pg->peers[off].cfg)
7098 GNUNET_CONFIGURATION_destroy (pg->peers[off].cfg);
7099 pg->peers[off].cfg = NULL;
7102 conn_iter = pg->peers[off].allowed_peers_head;
7103 while (conn_iter != NULL)
7105 temp_conn = conn_iter->next;
7106 GNUNET_free(conn_iter);
7107 conn_iter = temp_conn;
7110 conn_iter = pg->peers[off].connect_peers_head;
7111 while (conn_iter != NULL)
7113 temp_conn = conn_iter->next;
7114 GNUNET_free(conn_iter);
7115 conn_iter = temp_conn;
7118 conn_iter = pg->peers[off].blacklisted_peers_head;
7119 while (conn_iter != NULL)
7121 temp_conn = conn_iter->next;
7122 GNUNET_free(conn_iter);
7123 conn_iter = temp_conn;
7126 conn_iter = pg->peers[off].connect_peers_working_set_head;
7127 while (conn_iter != NULL)
7129 temp_conn = conn_iter->next;
7130 GNUNET_free(conn_iter);
7131 conn_iter = temp_conn;
7134 if (pg->peers[off].allowed_peers != NULL)
7135 GNUNET_CONTAINER_multihashmap_destroy (pg->peers[off].allowed_peers);
7136 if (pg->peers[off].connect_peers != NULL)
7137 GNUNET_CONTAINER_multihashmap_destroy (pg->peers[off].connect_peers);
7138 if (pg->peers[off].blacklisted_peers != NULL)
7139 GNUNET_CONTAINER_multihashmap_destroy (pg->
7140 peers[off].blacklisted_peers);
7145 /* end of testing_group.c */