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",
1473 GNUNET_CONFIGURATION_set_value_string (uc.ret, "nse", "UNIXPATH", "");
1474 GNUNET_CONFIGURATION_set_value_string (uc.ret, "arm", "UNIXPATH", "");
1476 GNUNET_CONFIGURATION_set_value_string (uc.ret, "transport-tcp", "USE_LOCALADDR",
1478 GNUNET_CONFIGURATION_set_value_string (uc.ret, "transport-udp", "USE_LOCALADDR",
1480 GNUNET_free_non_null (control_host);
1481 GNUNET_free (allowed_hosts);
1484 /* arm needs to know to allow connections from the host on which it is running,
1485 * otherwise gnunet-arm is unable to connect to it in some instances */
1486 if (hostname != NULL)
1488 GNUNET_asprintf (&allowed_hosts, "%s; 127.0.0.1;", hostname);
1489 GNUNET_CONFIGURATION_set_value_string (uc.ret, "nat", "BINDTO",
1491 GNUNET_CONFIGURATION_set_value_string (uc.ret, "nat", "INTERNAL_ADDRESS",
1493 GNUNET_CONFIGURATION_set_value_string (uc.ret, "nat", "EXTERNAL_ADDRESS",
1495 GNUNET_CONFIGURATION_set_value_string (uc.ret, "disablev6", "BINDTO",
1497 GNUNET_CONFIGURATION_set_value_string (uc.ret, "transport-tcp", "USE_LOCALADDR",
1499 GNUNET_CONFIGURATION_set_value_string (uc.ret, "transport-udp", "USE_LOCALADDR",
1501 GNUNET_CONFIGURATION_set_value_string (uc.ret, "arm", "ACCEPT_FROM",
1503 GNUNET_free (allowed_hosts);
1507 GNUNET_CONFIGURATION_set_value_string (uc.ret, "transport-tcp", "USE_LOCALADDR",
1509 GNUNET_CONFIGURATION_set_value_string (uc.ret, "transport-udp", "USE_LOCALADDR",
1511 GNUNET_CONFIGURATION_set_value_string (uc.ret, "nat", "BINDTO",
1513 GNUNET_CONFIGURATION_set_value_string (uc.ret, "nat", "INTERNAL_ADDRESS",
1515 GNUNET_CONFIGURATION_set_value_string (uc.ret, "nat", "EXTERNAL_ADDRESS",
1517 GNUNET_CONFIGURATION_set_value_string (uc.ret, "disablev6", "BINDTO",
1521 *port = (uint16_t) uc.nport;
1529 * Remove entries from the peer connection list
1531 * @param pg the peer group we are working with
1532 * @param first index of the first peer
1533 * @param second index of the second peer
1534 * @param list the peer list to use
1535 * @param check UNUSED
1537 * @return the number of connections added (can be 0, 1 or 2)
1541 remove_connections(struct GNUNET_TESTING_PeerGroup *pg, unsigned int first,
1542 unsigned int second, enum PeerLists list, unsigned int check)
1546 struct PeerConnection **first_list;
1547 struct PeerConnection **second_list;
1548 struct PeerConnection *first_iter;
1549 struct PeerConnection *second_iter;
1550 struct PeerConnection **first_tail;
1551 struct PeerConnection **second_tail;
1554 GNUNET_HashCode hash_first;
1555 GNUNET_HashCode hash_second;
1557 hash_from_uid (first, &hash_first);
1558 hash_from_uid (second, &hash_second);
1566 first_list = &pg->peers[first].allowed_peers_head;
1567 second_list = &pg->peers[second].allowed_peers_head;
1568 first_tail = &pg->peers[first].allowed_peers_tail;
1569 second_tail = &pg->peers[second].allowed_peers_tail;
1572 first_list = &pg->peers[first].connect_peers_head;
1573 second_list = &pg->peers[second].connect_peers_head;
1574 first_tail = &pg->peers[first].connect_peers_tail;
1575 second_tail = &pg->peers[second].connect_peers_tail;
1578 first_list = &pg->peers[first].blacklisted_peers_head;
1579 second_list = &pg->peers[second].blacklisted_peers_head;
1580 first_tail = &pg->peers[first].blacklisted_peers_tail;
1581 second_tail = &pg->peers[second].blacklisted_peers_tail;
1584 first_list = &pg->peers[first].connect_peers_working_set_head;
1585 second_list = &pg->peers[second].connect_peers_working_set_head;
1586 first_tail = &pg->peers[first].connect_peers_working_set_tail;
1587 second_tail = &pg->peers[second].connect_peers_working_set_tail;
1594 first_iter = *first_list;
1595 while (first_iter != NULL)
1597 if (first_iter->index == second)
1599 GNUNET_CONTAINER_DLL_remove(*first_list, *first_tail, first_iter);
1600 GNUNET_free(first_iter);
1604 first_iter = first_iter->next;
1607 second_iter = *second_list;
1608 while (second_iter != NULL)
1610 if (second_iter->index == first)
1612 GNUNET_CONTAINER_DLL_remove(*second_list, *second_tail, second_iter);
1613 GNUNET_free(second_iter);
1617 second_iter = second_iter->next;
1621 GNUNET_CONTAINER_multihashmap_contains (pg->peers[first].blacklisted_peers,
1624 GNUNET_CONTAINER_multihashmap_remove_all (pg->peers[first].blacklisted_peers,
1629 GNUNET_CONTAINER_multihashmap_contains (pg->peers[second].blacklisted_peers,
1632 GNUNET_CONTAINER_multihashmap_remove_all (pg->peers[second].blacklisted_peers,
1641 * Add entries to the some list
1643 * @param pg the peer group we are working with
1644 * @param first index of the first peer
1645 * @param second index of the second peer
1646 * @param list the list type that we should modify
1647 * @param check GNUNET_YES to check lists before adding
1648 * GNUNET_NO to force add
1650 * @return the number of connections added (can be 0, 1 or 2)
1654 add_connections(struct GNUNET_TESTING_PeerGroup *pg, unsigned int first,
1655 unsigned int second, enum PeerLists list, unsigned int check)
1661 struct PeerConnection **first_list;
1662 struct PeerConnection **second_list;
1663 struct PeerConnection *first_iter;
1664 struct PeerConnection *second_iter;
1665 struct PeerConnection *new_first;
1666 struct PeerConnection *new_second;
1667 struct PeerConnection **first_tail;
1668 struct PeerConnection **second_tail;
1673 first_list = &pg->peers[first].allowed_peers_head;
1674 second_list = &pg->peers[second].allowed_peers_head;
1675 first_tail = &pg->peers[first].allowed_peers_tail;
1676 second_tail = &pg->peers[second].allowed_peers_tail;
1679 first_list = &pg->peers[first].connect_peers_head;
1680 second_list = &pg->peers[second].connect_peers_head;
1681 first_tail = &pg->peers[first].connect_peers_tail;
1682 second_tail = &pg->peers[second].connect_peers_tail;
1685 first_list = &pg->peers[first].blacklisted_peers_head;
1686 second_list = &pg->peers[second].blacklisted_peers_head;
1687 first_tail = &pg->peers[first].blacklisted_peers_tail;
1688 second_tail = &pg->peers[second].blacklisted_peers_tail;
1691 first_list = &pg->peers[first].connect_peers_working_set_head;
1692 second_list = &pg->peers[second].connect_peers_working_set_head;
1693 first_tail = &pg->peers[first].connect_peers_working_set_tail;
1694 second_tail = &pg->peers[second].connect_peers_working_set_tail;
1701 add_first = GNUNET_YES;
1702 add_second = GNUNET_YES;
1704 if (check == GNUNET_YES)
1706 first_iter = *first_list;
1707 while (first_iter != NULL)
1709 if (first_iter->index == second)
1711 add_first = GNUNET_NO;
1714 first_iter = first_iter->next;
1717 second_iter = *second_list;
1718 while (second_iter != NULL)
1720 if (second_iter->index == first)
1722 add_second = GNUNET_NO;
1725 second_iter = second_iter->next;
1732 new_first = GNUNET_malloc (sizeof (struct PeerConnection));
1733 new_first->index = second;
1734 GNUNET_CONTAINER_DLL_insert(*first_list, *first_tail, new_first);
1735 pg->peers[first].num_connections++;
1741 new_second = GNUNET_malloc (sizeof (struct PeerConnection));
1742 new_second->index = first;
1743 GNUNET_CONTAINER_DLL_insert(*second_list, *second_tail, new_second);
1744 pg->peers[second].num_connections++;
1752 * Scale free network construction as described in:
1754 * "Emergence of Scaling in Random Networks." Science 286, 509-512, 1999.
1756 * Start with a network of "one" peer, then progressively add
1757 * peers up to the total number. At each step, iterate over
1758 * all possible peers and connect new peer based on number of
1759 * existing connections of the target peer.
1761 * @param pg the peer group we are dealing with
1762 * @param proc the connection processor to use
1763 * @param list the peer list to use
1765 * @return the number of connections created
1768 create_scale_free(struct GNUNET_TESTING_PeerGroup *pg,
1769 GNUNET_TESTING_ConnectionProcessor proc, enum PeerLists list)
1772 unsigned int total_connections;
1773 unsigned int outer_count;
1775 unsigned int previous_total_connections;
1779 GNUNET_assert (pg->total > 1);
1781 /* Add a connection between the first two nodes */
1782 total_connections = proc (pg, 0, 1, list, GNUNET_YES);
1784 for (outer_count = 1; outer_count < pg->total; outer_count++)
1786 previous_total_connections = total_connections;
1787 for (i = 0; i < outer_count; i++)
1789 probability = pg->peers[i].num_connections
1790 / (double) previous_total_connections;
1792 = ((double) GNUNET_CRYPTO_random_u64 (GNUNET_CRYPTO_QUALITY_WEAK,
1794 / ((double) UINT64_MAX);
1796 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1797 "Considering connecting peer %d to peer %d\n",
1800 if (random < probability)
1803 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1804 "Connecting peer %d to peer %d\n", outer_count, i);
1806 total_connections += proc (pg, outer_count, i, list, GNUNET_YES);
1811 return total_connections;
1815 * Create a topology given a peer group (set of running peers)
1816 * and a connection processor. Creates a small world topology
1817 * according to the rewired ring construction. The basic
1818 * behavior is that a ring topology is created, but with some
1819 * probability instead of connecting a peer to the next
1820 * neighbor in the ring a connection will be created to a peer
1821 * selected uniformly at random. We use the TESTING
1822 * PERCENTAGE option to specify what number of
1823 * connections each peer should have. Default is 2,
1824 * which makes the ring, any given number is multiplied by
1825 * the log of the network size; i.e. a PERCENTAGE of 2 makes
1826 * each peer have on average 2logn connections. The additional
1827 * connections are made at increasing distance around the ring
1828 * from the original peer, or to random peers based on the re-
1829 * wiring probability. The TESTING
1830 * PROBABILITY option is used as the probability that a given
1831 * connection is rewired.
1833 * @param pg the peergroup to create the topology on
1834 * @param proc the connection processor to call to actually set
1835 * up connections between two peers
1836 * @param list the peer list to use
1838 * @return the number of connections that were set up
1842 create_small_world_ring(struct GNUNET_TESTING_PeerGroup *pg,
1843 GNUNET_TESTING_ConnectionProcessor proc,
1844 enum PeerLists list)
1848 unsigned int natLog;
1849 unsigned int randomPeer;
1850 double random, logNModifier, probability;
1851 unsigned int smallWorldConnections;
1856 unsigned int useAnd;
1857 int connect_attempts;
1859 logNModifier = 0.5; /* FIXME: default value? */
1860 if (GNUNET_OK == GNUNET_CONFIGURATION_get_value_string (pg->cfg, "TESTING",
1864 if (sscanf (p_string, "%lf", &logNModifier) != 1)
1866 GNUNET_ERROR_TYPE_WARNING,
1868 ("Invalid value `%s' for option `%s' in section `%s': expected float\n"),
1869 p_string, "LOGNMODIFIER", "TESTING");
1870 GNUNET_free (p_string);
1872 probability = 0.5; /* FIXME: default percentage? */
1873 if (GNUNET_OK == GNUNET_CONFIGURATION_get_value_string (pg->cfg, "TESTING",
1877 if (sscanf (p_string, "%lf", &probability) != 1)
1879 GNUNET_ERROR_TYPE_WARNING,
1881 ("Invalid value `%s' for option `%s' in section `%s': expected float\n"),
1882 p_string, "PERCENTAGE", "TESTING");
1883 GNUNET_free (p_string);
1885 natLog = log (pg->total);
1886 connsPerPeer = ceil (natLog * logNModifier);
1888 if (connsPerPeer % 2 == 1)
1891 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, _("Target is %d connections per peer."),
1894 smallWorldConnections = 0;
1895 connect_attempts = 0;
1896 for (i = 0; i < pg->total; i++)
1899 max = i + connsPerPeer / 2;
1900 min = i - connsPerPeer / 2;
1902 if (max > pg->total - 1)
1904 max = max - pg->total;
1910 min = pg->total - 1 + min;
1914 for (j = 0; j < connsPerPeer / 2; j++)
1917 = ((double) GNUNET_CRYPTO_random_u64 (GNUNET_CRYPTO_QUALITY_WEAK,
1919 / ((double) UINT64_MAX));
1920 if (random < probability)
1922 /* Connect to uniformly selected random peer */
1924 = GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK,
1926 while ((((randomPeer < max) && (randomPeer > min)) && (useAnd
1927 == 0)) || (((randomPeer > min) || (randomPeer < max))
1931 = GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK,
1934 smallWorldConnections += proc (pg, i, randomPeer, list,
1939 nodeToConnect = i + j + 1;
1940 if (nodeToConnect > pg->total - 1)
1942 nodeToConnect = nodeToConnect - pg->total;
1944 connect_attempts += proc (pg, i, nodeToConnect, list, GNUNET_YES);
1950 connect_attempts += smallWorldConnections;
1952 return connect_attempts;
1956 * Create a topology given a peer group (set of running peers)
1957 * and a connection processor.
1959 * @param pg the peergroup to create the topology on
1960 * @param proc the connection processor to call to actually set
1961 * up connections between two peers
1962 * @param list the peer list to use
1964 * @return the number of connections that were set up
1968 create_nated_internet(struct GNUNET_TESTING_PeerGroup *pg,
1969 GNUNET_TESTING_ConnectionProcessor proc,
1970 enum PeerLists list)
1972 unsigned int outer_count, inner_count;
1973 unsigned int cutoff;
1974 int connect_attempts;
1975 double nat_percentage;
1978 nat_percentage = 0.6; /* FIXME: default percentage? */
1979 if (GNUNET_OK == GNUNET_CONFIGURATION_get_value_string (pg->cfg, "TESTING",
1983 if (sscanf (p_string, "%lf", &nat_percentage) != 1)
1985 GNUNET_ERROR_TYPE_WARNING,
1987 ("Invalid value `%s' for option `%s' in section `%s': expected float\n"),
1988 p_string, "PERCENTAGE", "TESTING");
1989 GNUNET_free (p_string);
1992 cutoff = (unsigned int) (nat_percentage * pg->total);
1993 connect_attempts = 0;
1994 for (outer_count = 0; outer_count < pg->total - 1; outer_count++)
1996 for (inner_count = outer_count + 1; inner_count < pg->total; inner_count++)
1998 if ((outer_count > cutoff) || (inner_count > cutoff))
2001 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2002 "Connecting peer %d to peer %d\n",
2003 outer_count, inner_count);
2005 connect_attempts += proc (pg, outer_count, inner_count, list,
2010 return connect_attempts;
2015 * Create a topology given a peer group (set of running peers)
2016 * and a connection processor.
2018 * @param pg the peergroup to create the topology on
2019 * @param proc the connection processor to call to actually set
2020 * up connections between two peers
2021 * @param list the peer list to use
2023 * @return the number of connections that were set up
2027 create_nated_internet_copy(struct GNUNET_TESTING_PeerGroup *pg,
2028 GNUNET_TESTING_ConnectionProcessor proc,
2029 enum PeerLists list)
2031 unsigned int outer_count, inner_count;
2032 unsigned int cutoff;
2033 int connect_attempts;
2034 double nat_percentage;
2037 struct ProgressMeter *conn_meter;
2039 nat_percentage = 0.6; /* FIXME: default percentage? */
2040 if (GNUNET_OK == GNUNET_CONFIGURATION_get_value_string (pg->cfg, "TESTING",
2044 if (sscanf (p_string, "%lf", &nat_percentage) != 1)
2046 GNUNET_ERROR_TYPE_WARNING,
2048 ("Invalid value `%s' for option `%s' in section `%s': expected float\n"),
2049 p_string, "PERCENTAGE", "TESTING");
2050 GNUNET_free (p_string);
2053 cutoff = (unsigned int) (nat_percentage * pg->total);
2055 for (outer_count = 0; outer_count < pg->total - 1; outer_count++)
2057 for (inner_count = outer_count + 1; inner_count < pg->total; inner_count++)
2059 if ((outer_count > cutoff) || (inner_count > cutoff))
2065 conn_meter = create_meter (count, "NAT COPY", GNUNET_YES);
2066 connect_attempts = 0;
2067 for (outer_count = 0; outer_count < pg->total - 1; outer_count++)
2069 for (inner_count = outer_count + 1; inner_count < pg->total; inner_count++)
2071 if ((outer_count > cutoff) || (inner_count > cutoff))
2074 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2075 "Connecting peer %d to peer %d\n",
2076 outer_count, inner_count);
2078 connect_attempts += proc (pg, outer_count, inner_count, list,
2080 add_connections (pg, outer_count, inner_count, ALLOWED, GNUNET_NO);
2081 update_meter (conn_meter);
2085 free_meter (conn_meter);
2087 return connect_attempts;
2092 * Create a topology given a peer group (set of running peers)
2093 * and a connection processor.
2095 * @param pg the peergroup to create the topology on
2096 * @param proc the connection processor to call to actually set
2097 * up connections between two peers
2098 * @param list the peer list to use
2100 * @return the number of connections that were set up
2104 create_small_world(struct GNUNET_TESTING_PeerGroup *pg,
2105 GNUNET_TESTING_ConnectionProcessor proc, enum PeerLists list)
2107 unsigned int i, j, k;
2108 unsigned int square;
2111 unsigned int toggle = 1;
2112 unsigned int nodeToConnect;
2113 unsigned int natLog;
2114 unsigned int node1Row;
2115 unsigned int node1Col;
2116 unsigned int node2Row;
2117 unsigned int node2Col;
2118 unsigned int distance;
2119 double probability, random, percentage;
2120 unsigned int smallWorldConnections;
2121 unsigned int small_world_it;
2123 int connect_attempts;
2124 square = floor (sqrt (pg->total));
2128 percentage = 0.5; /* FIXME: default percentage? */
2129 if (GNUNET_OK == GNUNET_CONFIGURATION_get_value_string (pg->cfg, "TESTING",
2133 if (sscanf (p_string, "%lf", &percentage) != 1)
2135 GNUNET_ERROR_TYPE_WARNING,
2137 ("Invalid value `%s' for option `%s' in section `%s': expected float\n"),
2138 p_string, "PERCENTAGE", "TESTING");
2139 GNUNET_free (p_string);
2141 if (percentage < 0.0)
2144 GNUNET_ERROR_TYPE_WARNING,
2146 ("Invalid value `%s' for option `%s' in section `%s': got %f, needed value greater than 0\n"),
2147 "PERCENTAGE", "TESTING", percentage);
2150 probability = 0.5; /* FIXME: default percentage? */
2151 if (GNUNET_OK == GNUNET_CONFIGURATION_get_value_string (pg->cfg, "TESTING",
2155 if (sscanf (p_string, "%lf", &probability) != 1)
2157 GNUNET_ERROR_TYPE_WARNING,
2159 ("Invalid value `%s' for option `%s' in section `%s': expected float\n"),
2160 p_string, "PROBABILITY", "TESTING");
2161 GNUNET_free (p_string);
2163 if (square * square != pg->total)
2165 while (rows * cols < pg->total)
2167 if (toggle % 2 == 0)
2176 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2178 ("Connecting nodes in 2d torus topology: %u rows %u columns\n"),
2182 connect_attempts = 0;
2183 /* Rows and columns are all sorted out, now iterate over all nodes and connect each
2184 * to the node to its right and above. Once this is over, we'll have our torus!
2185 * Special case for the last node (if the rows and columns are not equal), connect
2186 * to the first in the row to maintain topology.
2188 for (i = 0; i < pg->total; i++)
2190 /* First connect to the node to the right */
2191 if (((i + 1) % cols != 0) && (i + 1 != pg->total))
2192 nodeToConnect = i + 1;
2193 else if (i + 1 == pg->total)
2194 nodeToConnect = rows * cols - cols;
2196 nodeToConnect = i - cols + 1;
2198 connect_attempts += proc (pg, i, nodeToConnect, list, GNUNET_YES);
2202 nodeToConnect = (rows * cols) - cols + i;
2203 if (nodeToConnect >= pg->total)
2204 nodeToConnect -= cols;
2207 nodeToConnect = i - cols;
2209 if (nodeToConnect < pg->total)
2210 connect_attempts += proc (pg, i, nodeToConnect, list, GNUNET_YES);
2212 natLog = log (pg->total);
2213 #if VERBOSE_TESTING > 2
2214 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2215 _("natural log of %d is %d, will run %d iterations\n"),
2216 pg->total, natLog, (int) (natLog * percentage));
2217 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2218 _("Total connections added thus far: %u!\n"), connect_attempts);
2220 smallWorldConnections = 0;
2221 small_world_it = (unsigned int) (natLog * percentage);
2222 if (small_world_it < 1)
2224 GNUNET_assert (small_world_it > 0 && small_world_it < (unsigned int) -1);
2225 for (i = 0; i < small_world_it; i++)
2227 for (j = 0; j < pg->total; j++)
2229 /* Determine the row and column of node at position j on the 2d torus */
2230 node1Row = j / cols;
2231 node1Col = j - (node1Row * cols);
2232 for (k = 0; k < pg->total; k++)
2234 /* Determine the row and column of node at position k on the 2d torus */
2235 node2Row = k / cols;
2236 node2Col = k - (node2Row * cols);
2237 /* Simple Cartesian distance */
2238 distance = abs (node1Row - node2Row) + abs (node1Col - node2Col);
2241 /* Calculate probability as 1 over the square of the distance */
2242 probability = 1.0 / (distance * distance);
2243 /* Choose a random value between 0 and 1 */
2245 = ((double) GNUNET_CRYPTO_random_u64 (
2246 GNUNET_CRYPTO_QUALITY_WEAK,
2248 / ((double) UINT64_MAX);
2249 /* If random < probability, then connect the two nodes */
2250 if (random < probability)
2251 smallWorldConnections += proc (pg, j, k, list, GNUNET_YES);
2257 connect_attempts += smallWorldConnections;
2258 #if VERBOSE_TESTING > 2
2259 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2260 _("Total connections added for small world: %d!\n"),
2261 smallWorldConnections);
2263 return connect_attempts;
2267 * Create a topology given a peer group (set of running peers)
2268 * and a connection processor.
2270 * @param pg the peergroup to create the topology on
2271 * @param proc the connection processor to call to actually set
2272 * up connections between two peers
2273 * @param list the peer list to use
2275 * @return the number of connections that were set up
2279 create_erdos_renyi(struct GNUNET_TESTING_PeerGroup *pg,
2280 GNUNET_TESTING_ConnectionProcessor proc, enum PeerLists list)
2283 unsigned int outer_count;
2284 unsigned int inner_count;
2285 int connect_attempts;
2289 probability = 0.5; /* FIXME: default percentage? */
2290 if (GNUNET_OK == GNUNET_CONFIGURATION_get_value_string (pg->cfg, "TESTING",
2294 if (sscanf (p_string, "%lf", &probability) != 1)
2296 GNUNET_ERROR_TYPE_WARNING,
2298 ("Invalid value `%s' for option `%s' in section `%s': expected float\n"),
2299 p_string, "PROBABILITY", "TESTING");
2300 GNUNET_free (p_string);
2302 connect_attempts = 0;
2303 for (outer_count = 0; outer_count < pg->total - 1; outer_count++)
2305 for (inner_count = outer_count + 1; inner_count < pg->total; inner_count++)
2308 = ((double) GNUNET_CRYPTO_random_u64 (GNUNET_CRYPTO_QUALITY_WEAK,
2310 / ((double) UINT64_MAX);
2312 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2313 _("rand is %f probability is %f\n"), temp_rand,
2316 if (temp_rand < probability)
2318 connect_attempts += proc (pg, outer_count, inner_count, list,
2324 return connect_attempts;
2328 * Create a topology given a peer group (set of running peers)
2329 * and a connection processor. This particular function creates
2330 * the connections for a 2d-torus, plus additional "closest"
2331 * connections per peer.
2333 * @param pg the peergroup to create the topology on
2334 * @param proc the connection processor to call to actually set
2335 * up connections between two peers
2336 * @param list the peer list to use
2338 * @return the number of connections that were set up
2342 create_2d_torus(struct GNUNET_TESTING_PeerGroup *pg,
2343 GNUNET_TESTING_ConnectionProcessor proc, enum PeerLists list)
2346 unsigned int square;
2349 unsigned int toggle = 1;
2350 unsigned int nodeToConnect;
2351 int connect_attempts;
2353 connect_attempts = 0;
2355 square = floor (sqrt (pg->total));
2359 if (square * square != pg->total)
2361 while (rows * cols < pg->total)
2363 if (toggle % 2 == 0)
2372 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2374 ("Connecting nodes in 2d torus topology: %u rows %u columns\n"),
2377 /* Rows and columns are all sorted out, now iterate over all nodes and connect each
2378 * to the node to its right and above. Once this is over, we'll have our torus!
2379 * Special case for the last node (if the rows and columns are not equal), connect
2380 * to the first in the row to maintain topology.
2382 for (i = 0; i < pg->total; i++)
2384 /* First connect to the node to the right */
2385 if (((i + 1) % cols != 0) && (i + 1 != pg->total))
2386 nodeToConnect = i + 1;
2387 else if (i + 1 == pg->total)
2388 nodeToConnect = rows * cols - cols;
2390 nodeToConnect = i - cols + 1;
2392 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2393 "Connecting peer %d to peer %d\n", i, nodeToConnect);
2395 connect_attempts += proc (pg, i, nodeToConnect, list, GNUNET_YES);
2397 /* Second connect to the node immediately above */
2400 nodeToConnect = (rows * cols) - cols + i;
2401 if (nodeToConnect >= pg->total)
2402 nodeToConnect -= cols;
2405 nodeToConnect = i - cols;
2407 if (nodeToConnect < pg->total)
2410 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2411 "Connecting peer %d to peer %d\n", i, nodeToConnect);
2413 connect_attempts += proc (pg, i, nodeToConnect, list, GNUNET_YES);
2418 return connect_attempts;
2422 * Create a topology given a peer group (set of running peers)
2423 * and a connection processor.
2425 * @param pg the peergroup to create the topology on
2426 * @param proc the connection processor to call to actually set
2427 * up connections between two peers
2428 * @param list the peer list to use
2429 * @param check does the connection processor need to check before
2430 * performing an action on the list?
2432 * @return the number of connections that were set up
2436 create_clique(struct GNUNET_TESTING_PeerGroup *pg,
2437 GNUNET_TESTING_ConnectionProcessor proc, enum PeerLists list,
2440 unsigned int outer_count;
2441 unsigned int inner_count;
2442 int connect_attempts;
2443 struct ProgressMeter *conn_meter;
2444 connect_attempts = 0;
2446 conn_meter = create_meter ((((pg->total * pg->total) + pg->total) / 2)
2447 - pg->total, "Create Clique ", GNUNET_NO);
2448 for (outer_count = 0; outer_count < pg->total - 1; outer_count++)
2450 for (inner_count = outer_count + 1; inner_count < pg->total; inner_count++)
2453 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2454 "Connecting peer %d to peer %d\n",
2455 outer_count, inner_count);
2457 connect_attempts += proc (pg, outer_count, inner_count, list, check);
2458 update_meter (conn_meter);
2461 reset_meter (conn_meter);
2462 free_meter (conn_meter);
2463 return connect_attempts;
2468 * Iterator over hash map entries.
2470 * @param cls closure the peer group
2471 * @param key the key stored in the hashmap is the
2472 * index of the peer to connect to
2473 * @param value value in the hash map, handle to the peer daemon
2474 * @return GNUNET_YES if we should continue to
2479 unblacklist_iterator (void *cls,
2480 const GNUNET_HashCode * key,
2483 struct UnblacklistContext *un_ctx = cls;
2484 uint32_t second_pos;
2486 uid_from_hash (key, &second_pos);
2488 unblacklist_connections(un_ctx->pg, un_ctx->first_uid, second_pos);
2496 * Create a blacklist topology based on the allowed topology
2497 * which disallows any connections not in the allowed topology
2498 * at the transport level.
2500 * @param pg the peergroup to create the topology on
2501 * @param proc the connection processor to call to allow
2502 * up connections between two peers
2504 * @return the number of connections that were set up
2508 copy_allowed (struct GNUNET_TESTING_PeerGroup *pg,
2509 GNUNET_TESTING_ConnectionProcessor proc)
2513 struct PeerConnection *iter;
2515 struct UnblacklistContext un_ctx;
2520 for (count = 0; count < pg->total - 1; count++)
2523 iter = pg->peers[count].allowed_peers_head;
2524 while (iter != NULL)
2526 remove_connections (pg, count, iter->index, BLACKLIST, GNUNET_YES);
2527 //unblacklist_connections(pg, count, iter->index);
2531 un_ctx.first_uid = count;
2532 total += GNUNET_CONTAINER_multihashmap_iterate(pg->peers[count].allowed_peers,
2533 &unblacklist_iterator,
2537 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2538 "Unblacklisted %u peers\n",
2545 * Create a topology given a peer group (set of running peers)
2546 * and a connection processor.
2548 * @param pg the peergroup to create the topology on
2549 * @param proc the connection processor to call to actually set
2550 * up connections between two peers
2551 * @param list which list should be modified
2553 * @return the number of connections that were set up
2557 create_line(struct GNUNET_TESTING_PeerGroup *pg,
2558 GNUNET_TESTING_ConnectionProcessor proc, enum PeerLists list)
2561 unsigned int connect_attempts;
2563 connect_attempts = 0;
2564 /* Connect each peer to the next highest numbered peer */
2565 for (count = 0; count < pg->total - 1; count++)
2568 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2569 "Connecting peer %d to peer %d\n",
2572 connect_attempts += proc (pg, count, count + 1, list, GNUNET_YES);
2575 return connect_attempts;
2579 * Create a topology given a peer group (set of running peers)
2580 * and a connection processor.
2582 * @param pg the peergroup to create the topology on
2583 * @param filename the file to read topology information from
2584 * @param proc the connection processor to call to actually set
2585 * up connections between two peers
2586 * @param list the peer list to use
2588 * @return the number of connections that were set up
2592 create_from_file(struct GNUNET_TESTING_PeerGroup *pg, char *filename,
2593 GNUNET_TESTING_ConnectionProcessor proc, enum PeerLists list)
2595 int connect_attempts;
2596 unsigned int first_peer_index;
2597 unsigned int second_peer_index;
2602 unsigned int total_peers;
2603 enum States curr_state;
2605 connect_attempts = 0;
2606 if (GNUNET_OK != GNUNET_DISK_file_test (filename))
2607 GNUNET_DISK_fn_write (filename, NULL, 0, GNUNET_DISK_PERM_USER_READ);
2609 if ((0 != STAT (filename, &frstat)) || (frstat.st_size == 0))
2611 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
2612 "Could not open file `%s' specified for topology!", filename);
2613 return connect_attempts;
2616 data = GNUNET_malloc_large (frstat.st_size);
2617 GNUNET_assert(data != NULL);
2618 if (frstat.st_size != GNUNET_DISK_fn_read (filename, data, frstat.st_size))
2621 GNUNET_ERROR_TYPE_ERROR,
2622 "Could not read file %s specified for host list, ending test!",
2625 return connect_attempts;
2630 first_peer_index = 0;
2631 /* First line should contain a single integer, specifying the number of peers */
2632 /* Each subsequent line should contain this format PEER_INDEX:OTHER_PEER_INDEX[,...] */
2633 curr_state = NUM_PEERS;
2634 while (count < frstat.st_size - 1)
2636 if ((buf[count] == '\n') || (buf[count] == ' '))
2646 total_peers = strtoul(&buf[count], NULL, 10);
2649 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2650 "Failed to read number of peers from topology file!\n");
2652 return connect_attempts;
2654 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2655 "Read %u total peers in topology\n", total_peers);
2656 GNUNET_assert(total_peers == pg->total);
2657 curr_state = PEER_INDEX;
2658 while ((buf[count] != '\n') && (count < frstat.st_size - 1))
2664 first_peer_index = strtoul(&buf[count], NULL, 10);
2667 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2668 "Failed to read peer index from topology file!\n");
2670 return connect_attempts;
2672 while ((buf[count] != ':') && (count < frstat.st_size - 1))
2675 curr_state = OTHER_PEER_INDEX;
2678 if (1 == sscanf (&buf[count], ":"))
2679 curr_state = OTHER_PEER_INDEX;
2682 case OTHER_PEER_INDEX:
2684 second_peer_index = strtoul(&buf[count], NULL, 10);
2687 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2688 "Failed to peer index from topology file!\n");
2690 return connect_attempts;
2692 /* Assume file is written with first peer 1, but array index is 0 */
2693 connect_attempts += proc (pg, first_peer_index - 1, second_peer_index
2694 - 1, list, GNUNET_YES);
2695 while ((buf[count] != '\n') && (buf[count] != ',') && (count
2696 < frstat.st_size - 1))
2698 if (buf[count] == '\n')
2700 curr_state = PEER_INDEX;
2702 else if (buf[count] != ',')
2704 curr_state = OTHER_PEER_INDEX;
2709 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
2710 "Found bad data in topology file while in state %d!\n",
2714 return connect_attempts;
2718 return connect_attempts;
2722 * Create a topology given a peer group (set of running peers)
2723 * and a connection processor.
2725 * @param pg the peergroup to create the topology on
2726 * @param proc the connection processor to call to actually set
2727 * up connections between two peers
2728 * @param list the peer list to use
2730 * @return the number of connections that were set up
2734 create_ring(struct GNUNET_TESTING_PeerGroup *pg,
2735 GNUNET_TESTING_ConnectionProcessor proc, enum PeerLists list)
2738 int connect_attempts;
2740 connect_attempts = 0;
2742 /* Connect each peer to the next highest numbered peer */
2743 for (count = 0; count < pg->total - 1; count++)
2746 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2747 "Connecting peer %d to peer %d\n", count, count + 1);
2749 connect_attempts += proc (pg, count, count + 1, list, GNUNET_YES);
2752 /* Connect the last peer to the first peer */
2753 connect_attempts += proc (pg, pg->total - 1, 0, list, GNUNET_YES);
2755 return connect_attempts;
2760 * Iterator for writing friends of a peer to a file.
2762 * @param cls closure, an open writable file handle
2763 * @param key the key the daemon was stored under
2764 * @param value the GNUNET_TESTING_Daemon that needs to be written.
2766 * @return GNUNET_YES to continue iteration
2768 * TODO: Could replace friend_file_iterator and blacklist_file_iterator
2769 * with a single file_iterator that takes a closure which contains
2770 * the prefix to write before the peer. Then this could be used
2771 * for blacklisting multiple transports and writing the friend
2772 * file. I'm sure *someone* will complain loudly about other
2773 * things that negate these functions even existing so no point in
2777 friend_file_iterator (void *cls, const GNUNET_HashCode * key, void *value)
2779 FILE *temp_friend_handle = cls;
2780 struct GNUNET_TESTING_Daemon *peer = value;
2781 struct GNUNET_PeerIdentity *temppeer;
2782 struct GNUNET_CRYPTO_HashAsciiEncoded peer_enc;
2784 temppeer = &peer->id;
2785 GNUNET_CRYPTO_hash_to_enc (&temppeer->hashPubKey, &peer_enc);
2786 fprintf (temp_friend_handle, "%s\n", (char *) &peer_enc);
2791 struct BlacklistContext
2794 * The (open) file handle to write to
2796 FILE *temp_file_handle;
2799 * The transport that this peer will be blacklisted on.
2805 * Iterator for writing blacklist data to appropriate files.
2807 * @param cls closure, an open writable file handle
2808 * @param key the key the daemon was stored under
2809 * @param value the GNUNET_TESTING_Daemon that needs to be written.
2811 * @return GNUNET_YES to continue iteration
2814 blacklist_file_iterator (void *cls, const GNUNET_HashCode * key, void *value)
2816 struct BlacklistContext *blacklist_ctx = cls;
2817 struct GNUNET_TESTING_Daemon *peer = value;
2818 struct GNUNET_PeerIdentity *temppeer;
2819 struct GNUNET_CRYPTO_HashAsciiEncoded peer_enc;
2821 temppeer = &peer->id;
2822 GNUNET_CRYPTO_hash_to_enc (&temppeer->hashPubKey, &peer_enc);
2823 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Writing entry %s:%s to file\n", blacklist_ctx->transport, (char *) &peer_enc);
2824 fprintf (blacklist_ctx->temp_file_handle, "%s:%s\n",
2825 blacklist_ctx->transport, (char *) &peer_enc);
2832 * Create the friend files based on the PeerConnection's
2833 * of each peer in the peer group, and copy the files
2834 * to the appropriate place
2836 * @param pg the peer group we are dealing with
2839 create_and_copy_friend_files(struct GNUNET_TESTING_PeerGroup *pg)
2841 FILE *temp_friend_handle;
2842 unsigned int pg_iter;
2843 char *temp_service_path;
2844 struct GNUNET_OS_Process **procarr;
2848 enum GNUNET_OS_ProcessStatusType type;
2849 unsigned long return_code;
2857 struct GNUNET_CRYPTO_HashAsciiEncoded peer_enc;
2858 struct PeerConnection *conn_iter;
2860 procarr = GNUNET_malloc (sizeof (struct GNUNET_OS_Process *) * pg->total);
2861 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
2863 mytemp = GNUNET_DISK_mktemp ("friends");
2864 GNUNET_assert (mytemp != NULL);
2865 temp_friend_handle = fopen (mytemp, "wt");
2866 GNUNET_assert (temp_friend_handle != NULL);
2868 conn_iter = pg->peers[pg_iter].allowed_peers_head;
2869 while (conn_iter != NULL)
2871 GNUNET_CRYPTO_hash_to_enc (
2872 &pg->peers[conn_iter->index].daemon->id.hashPubKey,
2874 fprintf (temp_friend_handle, "%s\n", (char *) &peer_enc);
2875 conn_iter = conn_iter->next;
2878 GNUNET_CONTAINER_multihashmap_iterate (pg->peers[pg_iter].allowed_peers,
2879 &friend_file_iterator,
2880 temp_friend_handle);
2882 fclose (temp_friend_handle);
2885 != GNUNET_CONFIGURATION_get_value_string (pg->peers[pg_iter].
2887 "PATHS", "SERVICEHOME",
2888 &temp_service_path))
2890 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2891 _("No `%s' specified in peer configuration in section `%s', cannot copy friends file!\n"),
2892 "SERVICEHOME", "PATHS");
2893 if (UNLINK (mytemp) != 0)
2894 GNUNET_log_strerror_file (GNUNET_ERROR_TYPE_WARNING,
2897 GNUNET_free (mytemp);
2901 if (pg->peers[pg_iter].daemon->hostname == NULL) /* Local, just copy the file */
2903 GNUNET_asprintf (&arg, "%s/friends", temp_service_path);
2904 procarr[pg_iter] = GNUNET_OS_start_process (NULL, NULL, "mv", "mv",
2906 GNUNET_assert(procarr[pg_iter] != NULL);
2908 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2909 "Copying file with command cp %s %s\n",
2913 ret = GNUNET_OS_process_wait (procarr[pg_iter]); /* FIXME: schedule this, throttle! */
2914 GNUNET_OS_process_close (procarr[pg_iter]);
2917 else /* Remote, scp the file to the correct place */
2919 if (NULL != pg->peers[pg_iter].daemon->username)
2920 GNUNET_asprintf (&arg, "%s@%s:%s/friends",
2921 pg->peers[pg_iter].daemon->username,
2922 pg->peers[pg_iter].daemon->hostname,
2925 GNUNET_asprintf (&arg, "%s:%s/friends",
2926 pg->peers[pg_iter].daemon->hostname,
2928 procarr[pg_iter] = GNUNET_OS_start_process (NULL, NULL, "scp", "scp",
2930 GNUNET_assert(procarr[pg_iter] != NULL);
2931 ret = GNUNET_OS_process_wait (procarr[pg_iter]); /* FIXME: schedule this, throttle! */
2932 GNUNET_OS_process_close (procarr[pg_iter]);
2933 if (ret != GNUNET_OK)
2935 /* FIXME: free contents of 'procarr' array */
2936 GNUNET_free (procarr);
2937 GNUNET_free (temp_service_path);
2938 GNUNET_free (mytemp);
2942 procarr[pg_iter] = NULL;
2944 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2945 "Copying file with command scp %s %s\n",
2951 GNUNET_free (temp_service_path);
2952 GNUNET_free (mytemp);
2957 ret = GNUNET_SYSERR;
2958 while ((count < max_wait) && (ret != GNUNET_OK))
2961 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
2964 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2965 "Checking copy status of file %d\n",
2968 if (procarr[pg_iter] != NULL) /* Check for already completed! */
2970 if (GNUNET_OS_process_status
2971 (procarr[pg_iter], &type, &return_code) != GNUNET_OK)
2973 ret = GNUNET_SYSERR;
2975 else if ((type != GNUNET_OS_PROCESS_EXITED)
2976 || (return_code != 0))
2978 ret = GNUNET_SYSERR;
2982 GNUNET_OS_process_close (procarr[pg_iter]);
2983 procarr[pg_iter] = NULL;
2985 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2993 if (ret == GNUNET_SYSERR)
2995 /* FIXME: why sleep here? -CG */
3001 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
3002 _("Finished copying all friend files!\n"));
3005 GNUNET_free (procarr);
3010 * Create the blacklist files based on the PeerConnection's
3011 * of each peer in the peer group, and copy the files
3012 * to the appropriate place.
3014 * @param pg the peer group we are dealing with
3015 * @param transports space delimited list of transports to blacklist
3018 create_and_copy_blacklist_files(struct GNUNET_TESTING_PeerGroup *pg,
3019 const char *transports)
3021 FILE *temp_file_handle;
3022 unsigned int pg_iter;
3023 char *temp_service_path;
3024 struct GNUNET_OS_Process **procarr;
3027 enum GNUNET_OS_ProcessStatusType type;
3028 unsigned long return_code;
3035 char *temp_transports;
3037 struct GNUNET_CRYPTO_HashAsciiEncoded peer_enc;
3038 struct PeerConnection *conn_iter;
3040 static struct BlacklistContext blacklist_ctx;
3043 procarr = GNUNET_malloc (sizeof (struct GNUNET_OS_Process *) * pg->total);
3044 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
3046 mytemp = GNUNET_DISK_mktemp ("blacklist");
3047 GNUNET_assert (mytemp != NULL);
3048 temp_file_handle = fopen (mytemp, "wt");
3049 GNUNET_assert (temp_file_handle != NULL);
3050 temp_transports = GNUNET_strdup (transports);
3052 blacklist_ctx.temp_file_handle = temp_file_handle;
3054 transport_len = strlen (temp_transports) + 1;
3057 for (i = 0; i < transport_len; i++)
3059 if ((temp_transports[i] == ' ') && (pos == NULL))
3060 continue; /* At start of string (whitespace) */
3061 else if ((temp_transports[i] == ' ') || (temp_transports[i] == '\0')) /* At end of string */
3063 temp_transports[i] = '\0';
3065 conn_iter = pg->peers[pg_iter].blacklisted_peers_head;
3066 while (conn_iter != NULL)
3068 GNUNET_CRYPTO_hash_to_enc (
3069 &pg->peers[conn_iter->index].daemon->id.hashPubKey,
3071 fprintf (temp_file_handle, "%s:%s\n", pos, (char *) &peer_enc);
3072 conn_iter = conn_iter->next;
3075 blacklist_ctx.transport = pos;
3076 (void) GNUNET_CONTAINER_multihashmap_iterate (pg->
3078 [pg_iter].blacklisted_peers,
3079 &blacklist_file_iterator,
3083 } /* At beginning of actual string */
3084 else if (pos == NULL)
3086 pos = &temp_transports[i];
3090 GNUNET_free (temp_transports);
3091 fclose (temp_file_handle);
3094 != GNUNET_CONFIGURATION_get_value_string (
3095 pg->peers[pg_iter]. daemon->cfg,
3096 "PATHS", "SERVICEHOME",
3097 &temp_service_path))
3100 GNUNET_ERROR_TYPE_WARNING,
3102 ("No `%s' specified in peer configuration in section `%s', cannot copy friends file!\n"),
3103 "SERVICEHOME", "PATHS");
3104 if (UNLINK (mytemp) != 0)
3105 GNUNET_log_strerror_file (GNUNET_ERROR_TYPE_WARNING, "unlink",
3107 GNUNET_free (mytemp);
3111 if (pg->peers[pg_iter].daemon->hostname == NULL) /* Local, just copy the file */
3113 GNUNET_asprintf (&arg, "%s/blacklist", temp_service_path);
3114 procarr[pg_iter] = GNUNET_OS_start_process (NULL, NULL, "mv", "mv",
3117 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
3118 _("Copying file with command cp %s %s\n"), mytemp, arg);
3123 else /* Remote, scp the file to the correct place */
3125 if (NULL != pg->peers[pg_iter].daemon->username)
3126 GNUNET_asprintf (&arg, "%s@%s:%s/blacklist",
3127 pg->peers[pg_iter].daemon->username,
3128 pg->peers[pg_iter].daemon->hostname,
3131 GNUNET_asprintf (&arg, "%s:%s/blacklist",
3132 pg->peers[pg_iter].daemon->hostname,
3134 procarr[pg_iter] = GNUNET_OS_start_process (NULL, NULL, "scp", "scp",
3136 GNUNET_assert(procarr[pg_iter] != NULL);
3137 GNUNET_OS_process_wait (procarr[pg_iter]); /* FIXME: add scheduled blacklist file copy that parallelizes file copying! */
3140 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
3141 _("Copying file with command scp %s %s\n"), mytemp,
3146 GNUNET_free (temp_service_path);
3147 GNUNET_free (mytemp);
3151 ret = GNUNET_SYSERR;
3152 while ((count < max_wait) && (ret != GNUNET_OK))
3155 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
3158 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
3159 _("Checking copy status of file %d\n"), pg_iter);
3161 if (procarr[pg_iter] != NULL) /* Check for already completed! */
3163 if (GNUNET_OS_process_status (procarr[pg_iter], &type,
3164 &return_code) != GNUNET_OK)
3166 ret = GNUNET_SYSERR;
3168 else if ((type != GNUNET_OS_PROCESS_EXITED) || (return_code != 0))
3170 ret = GNUNET_SYSERR;
3174 GNUNET_OS_process_close (procarr[pg_iter]);
3175 procarr[pg_iter] = NULL;
3177 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
3178 _("File %d copied\n"), pg_iter);
3184 if (ret == GNUNET_SYSERR)
3186 /* FIXME: why sleep here? -CG */
3192 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
3193 _("Finished copying all blacklist files!\n"));
3195 GNUNET_free (procarr);
3199 /* Forward Declaration */
3201 schedule_connect(void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc);
3204 * Choose a random peer's next connection to create, and
3205 * call schedule_connect to set up the connect task.
3207 * @param ct_ctx the overall connection context
3210 preschedule_connect(struct GNUNET_TESTING_PeerGroup *pg)
3212 struct ConnectTopologyContext *ct_ctx = &pg->ct_ctx;
3213 struct PeerConnection *connection_iter;
3214 struct ConnectContext *connect_context;
3215 uint32_t random_peer;
3217 if (ct_ctx->remaining_connections == 0)
3220 = GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK, pg->total);
3221 while (pg->peers[random_peer].connect_peers_head == NULL)
3222 random_peer = GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK,
3225 connection_iter = pg->peers[random_peer].connect_peers_head;
3226 connect_context = GNUNET_malloc (sizeof (struct ConnectContext));
3227 connect_context->first_index = random_peer;
3228 connect_context->second_index = connection_iter->index;
3229 connect_context->ct_ctx = ct_ctx;
3230 GNUNET_SCHEDULER_add_now (&schedule_connect, connect_context);
3231 GNUNET_CONTAINER_DLL_remove(pg->peers[random_peer].connect_peers_head, pg->peers[random_peer].connect_peers_tail, connection_iter);
3232 GNUNET_free(connection_iter);
3233 ct_ctx->remaining_connections--;
3237 /* Forward declaration */
3238 static void schedule_send_hellos (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc);
3241 * Close connections and free the hello context.
3243 * @param cls the 'struct SendHelloContext *'
3244 * @param tc scheduler context
3247 free_hello_context (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
3249 struct SendHelloContext *send_hello_context = cls;
3250 if (send_hello_context->peer->daemon->server != NULL)
3252 GNUNET_CORE_disconnect(send_hello_context->peer->daemon->server);
3253 send_hello_context->peer->daemon->server = NULL;
3255 if (send_hello_context->peer->daemon->th != NULL)
3257 GNUNET_TRANSPORT_disconnect(send_hello_context->peer->daemon->th);
3258 send_hello_context->peer->daemon->th = NULL;
3260 if (send_hello_context->core_connect_task != GNUNET_SCHEDULER_NO_TASK)
3262 GNUNET_SCHEDULER_cancel(send_hello_context->core_connect_task);
3263 send_hello_context->core_connect_task = GNUNET_SCHEDULER_NO_TASK;
3265 send_hello_context->pg->outstanding_connects--;
3266 GNUNET_free(send_hello_context);
3270 * For peers that haven't yet connected, notify
3271 * the caller that they have failed (timeout).
3273 * @param cls the 'struct SendHelloContext *'
3274 * @param tc scheduler context
3277 notify_remaining_connections_failed (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
3279 struct SendHelloContext *send_hello_context = cls;
3280 struct GNUNET_TESTING_PeerGroup *pg = send_hello_context->pg;
3281 struct PeerConnection *connection;
3283 GNUNET_CORE_disconnect(send_hello_context->peer->daemon->server);
3284 send_hello_context->peer->daemon->server = NULL;
3286 connection = send_hello_context->peer->connect_peers_head;
3288 while (connection != NULL)
3290 if (pg->notify_connection != NULL)
3292 pg->notify_connection(pg->notify_connection_cls,
3293 &send_hello_context->peer->daemon->id,
3294 &pg->peers[connection->index].daemon->id,
3296 send_hello_context->peer->daemon->cfg,
3297 pg->peers[connection->index].daemon->cfg,
3298 send_hello_context->peer->daemon,
3299 pg->peers[connection->index].daemon,
3300 "Peers failed to connect (timeout)");
3302 GNUNET_CONTAINER_DLL_remove(send_hello_context->peer->connect_peers_head, send_hello_context->peer->connect_peers_tail, connection);
3303 GNUNET_free(connection);
3304 connection = connection->next;
3306 GNUNET_SCHEDULER_add_now(&free_hello_context, send_hello_context);
3308 other_peer = &pg->peers[connection->index];
3313 * For peers that haven't yet connected, send
3314 * CORE connect requests.
3316 * @param cls the 'struct SendHelloContext *'
3317 * @param tc scheduler context
3320 send_core_connect_requests (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
3322 struct SendHelloContext *send_hello_context = cls;
3323 struct PeerConnection *conn;
3324 GNUNET_assert(send_hello_context->peer->daemon->server != NULL);
3326 send_hello_context->core_connect_task = GNUNET_SCHEDULER_NO_TASK;
3328 send_hello_context->connect_attempts++;
3329 if (send_hello_context->connect_attempts < send_hello_context->pg->ct_ctx.connect_attempts)
3331 conn = send_hello_context->peer->connect_peers_head;
3332 while (conn != NULL)
3334 GNUNET_CORE_peer_request_connect(send_hello_context->peer->daemon->server,
3335 &send_hello_context->pg->peers[conn->index].daemon->id,
3340 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) ,
3341 &send_core_connect_requests,
3342 send_hello_context);
3346 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Timeout before all connections created, marking rest as failed!\n");
3347 GNUNET_SCHEDULER_add_now(¬ify_remaining_connections_failed, send_hello_context);
3353 * Success, connection is up. Signal client our success.
3355 * @param cls our "struct SendHelloContext"
3356 * @param peer identity of the peer that has connected
3357 * @param atsi performance information
3359 * FIXME: remove peers from BOTH lists, call notify twice, should
3360 * double the speed of connections as long as the list iteration
3361 * doesn't take too long!
3364 core_connect_notify (void *cls,
3365 const struct GNUNET_PeerIdentity *peer,
3366 const struct GNUNET_TRANSPORT_ATS_Information *atsi)
3368 struct SendHelloContext *send_hello_context = cls;
3369 struct PeerConnection *connection;
3370 struct GNUNET_TESTING_PeerGroup *pg = send_hello_context->pg;
3372 struct PeerData *other_peer;
3375 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
3376 "Connected peer %s to peer %s\n",
3377 ctx->d1->shortname, GNUNET_i2s(peer));
3380 if (0 == memcmp(&send_hello_context->peer->daemon->id, peer, sizeof(struct GNUNET_PeerIdentity)))
3383 connection = send_hello_context->peer->connect_peers_head;
3388 while ((connection != NULL) &&
3389 (0 != memcmp(&pg->peers[connection->index].daemon->id, peer, sizeof(struct GNUNET_PeerIdentity))))
3391 connection = connection->next;
3394 if (connection == NULL)
3396 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);
3401 other_peer = &pg->peers[connection->index];
3403 if (pg->notify_connection != NULL)
3405 pg->notify_connection(pg->notify_connection_cls,
3406 &send_hello_context->peer->daemon->id,
3409 send_hello_context->peer->daemon->cfg,
3410 pg->peers[connection->index].daemon->cfg,
3411 send_hello_context->peer->daemon,
3412 pg->peers[connection->index].daemon,
3415 GNUNET_CONTAINER_DLL_remove(send_hello_context->peer->connect_peers_head, send_hello_context->peer->connect_peers_tail, connection);
3416 GNUNET_free(connection);
3420 /* Notify of reverse connection and remove from other peers list of outstanding */
3421 if (other_peer != NULL)
3423 connection = other_peer->connect_peers_head;
3424 while ((connection != NULL) &&
3425 (0 != memcmp(&send_hello_context->peer->daemon->id, &pg->peers[connection->index].daemon->id, sizeof(struct GNUNET_PeerIdentity))))
3427 connection = connection->next;
3429 if (connection != NULL)
3431 if (pg->notify_connection != NULL)
3433 pg->notify_connection(pg->notify_connection_cls,
3435 &send_hello_context->peer->daemon->id,
3437 pg->peers[connection->index].daemon->cfg,
3438 send_hello_context->peer->daemon->cfg,
3439 pg->peers[connection->index].daemon,
3440 send_hello_context->peer->daemon,
3444 GNUNET_CONTAINER_DLL_remove(other_peer->connect_peers_head, other_peer->connect_peers_tail, connection);
3445 GNUNET_free(connection);
3450 if (send_hello_context->peer->connect_peers_head == NULL)
3452 GNUNET_SCHEDULER_add_now(&free_hello_context, send_hello_context);
3457 * Notify of a successful connection to the core service.
3459 * @param cls a struct SendHelloContext *
3460 * @param server handle to the core service
3461 * @param my_identity the peer identity of this peer
3462 * @param publicKey the public key of the peer
3465 core_init (void *cls,
3466 struct GNUNET_CORE_Handle * server,
3467 const struct GNUNET_PeerIdentity *
3470 GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded *
3473 struct SendHelloContext *send_hello_context = cls;
3474 send_hello_context->core_ready = GNUNET_YES;
3478 * Function called once a hello has been sent
3479 * to the transport, move on to the next one
3480 * or go away forever.
3482 * @param cls the 'struct SendHelloContext *'
3483 * @param tc scheduler context
3486 hello_sent_callback (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
3488 struct SendHelloContext *send_hello_context = cls;
3489 //unsigned int pg_iter;
3490 if ( (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN) != 0)
3492 GNUNET_free(send_hello_context);
3496 send_hello_context->pg->remaining_hellos--;
3498 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Sent HELLO, have %d remaining!\n", send_hello_context->pg->remaining_hellos);
3500 if (send_hello_context->peer_pos == NULL) /* All HELLOs (for this peer!) have been transmitted! */
3503 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "All hellos for this peer sent, disconnecting transport!\n");
3505 GNUNET_assert(send_hello_context->peer->daemon->th != NULL);
3506 GNUNET_TRANSPORT_disconnect(send_hello_context->peer->daemon->th);
3507 send_hello_context->peer->daemon->th = NULL;
3509 /*if (send_hello_context->pg->remaining_hellos == 0)
3511 for (pg_iter = 0; pg_iter < send_hello_context->pg->max_outstanding_connections; pg_iter++)
3513 preschedule_connect(&send_hello_context->pg->ct_ctx);
3517 GNUNET_assert (send_hello_context->peer->daemon->server == NULL);
3518 send_hello_context->peer->daemon->server = GNUNET_CORE_connect(send_hello_context->peer->cfg,
3522 &core_connect_notify,
3529 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),
3530 &send_core_connect_requests,
3531 send_hello_context);
3534 GNUNET_SCHEDULER_add_now(&schedule_send_hellos, send_hello_context);
3538 * Connect to a peer, give it all the HELLO's of those peers
3539 * we will later ask it to connect to.
3541 * @param ct_ctx the overall connection context
3543 static void schedule_send_hellos (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
3545 struct SendHelloContext *send_hello_context = cls;
3546 struct GNUNET_TESTING_PeerGroup *pg = send_hello_context->pg;
3548 if ( (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN) != 0)
3550 GNUNET_free(send_hello_context);
3554 GNUNET_assert(send_hello_context->peer_pos != NULL); /* All of the HELLO sends to be scheduled have been scheduled! */
3556 if (((send_hello_context->peer->daemon->th == NULL) &&
3557 (pg->outstanding_connects > pg->max_outstanding_connections)) ||
3558 (pg->stop_connects == GNUNET_YES))
3560 #if VERBOSE_TESTING > 2
3561 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
3563 ("Delaying connect, we have too many outstanding connections!\n"));
3565 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply
3566 (GNUNET_TIME_UNIT_MILLISECONDS, 100),
3567 &schedule_send_hellos, send_hello_context);
3571 #if VERBOSE_TESTING > 2
3572 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
3573 _("Creating connection, outstanding_connections is %d\n"),
3574 outstanding_connects);
3576 if (send_hello_context->peer->daemon->th == NULL)
3578 pg->outstanding_connects++; /* Actual TRANSPORT, CORE connections! */
3579 send_hello_context->peer->daemon->th
3580 = GNUNET_TRANSPORT_connect (send_hello_context->peer->cfg, NULL,
3581 send_hello_context, NULL, NULL, NULL);
3584 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
3585 _("Offering Hello of peer %s to peer %s\n"),
3586 send_hello_context->peer->daemon->shortname, pg->peers[send_hello_context->peer_pos->index].daemon->shortname);
3588 GNUNET_TRANSPORT_offer_hello(send_hello_context->peer->daemon->th,
3589 (const struct GNUNET_MessageHeader *)pg->peers[send_hello_context->peer_pos->index].daemon->hello,
3590 &hello_sent_callback,
3591 send_hello_context);
3592 send_hello_context->peer_pos = send_hello_context->peer_pos->next;
3593 GNUNET_assert(send_hello_context->peer->daemon->th != NULL);
3599 * Internal notification of a connection, kept so that we can ensure some connections
3600 * happen instead of flooding all testing daemons with requests to connect.
3603 internal_connect_notify(void *cls, const struct GNUNET_PeerIdentity *first,
3604 const struct GNUNET_PeerIdentity *second,
3606 const struct GNUNET_CONFIGURATION_Handle *first_cfg,
3607 const struct GNUNET_CONFIGURATION_Handle *second_cfg,
3608 struct GNUNET_TESTING_Daemon *first_daemon,
3609 struct GNUNET_TESTING_Daemon *second_daemon,
3612 struct ConnectContext *connect_ctx = cls;
3613 struct ConnectTopologyContext *ct_ctx = connect_ctx->ct_ctx;
3614 struct GNUNET_TESTING_PeerGroup *pg = ct_ctx->pg;
3615 struct PeerConnection *connection;
3617 GNUNET_assert (0 < pg->outstanding_connects);
3618 pg->outstanding_connects--;
3621 * Check whether the inverse connection has been scheduled yet,
3622 * if not, we can remove it from the other peers list and avoid
3623 * even trying to connect them again!
3625 connection = pg->peers[connect_ctx->second_index].connect_peers_head;
3630 while ((connection != NULL) && (0
3631 != memcmp (first, &pg->peers[connection->index].daemon->id,
3632 sizeof(struct GNUNET_PeerIdentity))))
3634 connection = connection->next;
3637 if (connection != NULL) /* Can safely remove! */
3639 GNUNET_assert (0 < ct_ctx->remaining_connections);
3640 ct_ctx->remaining_connections--;
3641 if (pg->notify_connection != NULL) /* Notify of reverse connection */
3642 pg->notify_connection (pg->notify_connection_cls, second, first,
3643 distance, second_cfg, first_cfg, second_daemon,
3644 first_daemon, emsg);
3646 GNUNET_CONTAINER_DLL_remove(pg->peers[connect_ctx->second_index].connect_peers_head, pg->peers[connect_ctx->second_index].connect_peers_tail, connection);
3647 GNUNET_free(connection);
3650 if (ct_ctx->remaining_connections == 0)
3652 if (ct_ctx->notify_connections_done != NULL)
3654 ct_ctx->notify_connections_done (ct_ctx->notify_cls, NULL);
3655 ct_ctx->notify_connections_done = NULL;
3659 preschedule_connect (pg);
3661 if (pg->notify_connection != NULL)
3662 pg->notify_connection (pg->notify_connection_cls, first, second, distance,
3663 first_cfg, second_cfg, first_daemon, second_daemon,
3666 GNUNET_free(connect_ctx);
3670 * Either delay a connection (because there are too many outstanding)
3671 * or schedule it for right now.
3673 * @param cls a connection context
3674 * @param tc the task runtime context
3677 schedule_connect(void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
3679 struct ConnectContext *connect_context = cls;
3680 struct GNUNET_TESTING_PeerGroup *pg = connect_context->ct_ctx->pg;
3682 if ( (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN) != 0)
3685 if ((pg->outstanding_connects > pg->max_outstanding_connections)
3686 || (pg->stop_connects == GNUNET_YES))
3689 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
3691 ("Delaying connect, we have too many outstanding connections!\n"));
3693 GNUNET_SCHEDULER_add_delayed (
3694 GNUNET_TIME_relative_multiply (
3695 GNUNET_TIME_UNIT_MILLISECONDS,
3697 &schedule_connect, connect_context);
3702 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
3703 _("Creating connection, outstanding_connections is %d (max %d)\n"),
3704 pg->outstanding_connects, pg->max_outstanding_connections);
3706 pg->outstanding_connects++;
3707 pg->total_connects_scheduled++;
3708 GNUNET_TESTING_daemons_connect (
3709 pg->peers[connect_context->first_index].daemon,
3710 pg->peers[connect_context->second_index].daemon,
3711 connect_context->ct_ctx->connect_timeout,
3712 connect_context->ct_ctx->connect_attempts,
3718 &internal_connect_notify, connect_context); /* FIXME: free connect context! */
3724 * Iterator for actually scheduling connections to be created
3725 * between two peers.
3727 * @param cls closure, a GNUNET_TESTING_Daemon
3728 * @param key the key the second Daemon was stored under
3729 * @param value the GNUNET_TESTING_Daemon that the first is to connect to
3731 * @return GNUNET_YES to continue iteration
3734 connect_iterator (void *cls, const GNUNET_HashCode * key, void *value)
3736 struct ConnectTopologyContext *ct_ctx = cls;
3737 struct PeerData *first = ct_ctx->first;
3738 struct GNUNET_TESTING_Daemon *second = value;
3739 struct ConnectContext *connect_context;
3741 connect_context = GNUNET_malloc (sizeof (struct ConnectContext));
3742 connect_context->first = first->daemon;
3743 connect_context->second = second;
3744 connect_context->ct_ctx = ct_ctx;
3745 GNUNET_SCHEDULER_add_now (&schedule_connect, connect_context);
3753 * Iterator for copying all entries in the allowed hashmap to the
3756 * @param cls closure, a GNUNET_TESTING_Daemon
3757 * @param key the key the second Daemon was stored under
3758 * @param value the GNUNET_TESTING_Daemon that the first is to connect to
3760 * @return GNUNET_YES to continue iteration
3763 copy_topology_iterator (void *cls, const GNUNET_HashCode * key, void *value)
3765 struct PeerData *first = cls;
3767 GNUNET_assert (GNUNET_OK ==
3768 GNUNET_CONTAINER_multihashmap_put (first->connect_peers, key,
3770 GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY));
3777 * Make the peers to connect the same as those that are allowed to be
3780 * @param pg the peer group
3783 copy_allowed_topology(struct GNUNET_TESTING_PeerGroup *pg)
3785 unsigned int pg_iter;
3789 struct PeerConnection *iter;
3793 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
3796 iter = pg->peers[pg_iter].allowed_peers_head;
3797 while (iter != NULL)
3799 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
3800 "Creating connection between %d and %d\n", pg_iter,
3802 total += add_connections (pg, pg_iter, iter->index, CONNECT,
3804 //total += add_actual_connections(pg, pg_iter, iter->index);
3809 GNUNET_CONTAINER_multihashmap_iterate (pg->
3810 peers[pg_iter].allowed_peers,
3811 ©_topology_iterator,
3812 &pg->peers[pg_iter]);
3814 if (GNUNET_SYSERR == ret)
3815 return GNUNET_SYSERR;
3817 total = total + ret;
3824 * Connect the topology as specified by the PeerConnection's
3825 * of each peer in the peer group
3827 * @param pg the peer group we are dealing with
3828 * @param connect_timeout how long try connecting two peers
3829 * @param connect_attempts how many times (max) to attempt
3830 * @param notify_callback callback to notify when finished
3831 * @param notify_cls closure for notify callback
3833 * @return the number of connections that will be attempted
3836 connect_topology(struct GNUNET_TESTING_PeerGroup *pg,
3837 struct GNUNET_TIME_Relative connect_timeout,
3838 unsigned int connect_attempts,
3839 GNUNET_TESTING_NotifyCompletion notify_callback,
3842 unsigned int pg_iter;
3846 struct PeerConnection *connection_iter;
3849 struct SendHelloContext *send_hello_context;
3853 pg->ct_ctx.notify_connections_done = notify_callback;
3854 pg->ct_ctx.notify_cls = notify_cls;
3857 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
3860 connection_iter = pg->peers[pg_iter].connect_peers_head;
3861 while (connection_iter != NULL)
3863 connection_iter = connection_iter->next;
3868 GNUNET_CONTAINER_multihashmap_size (pg->peers[pg_iter].connect_peers);
3875 pg->ct_ctx.connect_timeout = connect_timeout;
3876 pg->ct_ctx.connect_attempts = connect_attempts;
3877 pg->ct_ctx.remaining_connections = total;
3880 /* First give all peers the HELLO's of other peers (connect to first peer's transport service, give HELLO's of other peers, continue...) */
3881 pg->remaining_hellos = total;
3882 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
3884 send_hello_context = GNUNET_malloc(sizeof(struct SendHelloContext));
3885 send_hello_context->peer = &pg->peers[pg_iter];
3886 send_hello_context->peer_pos = pg->peers[pg_iter].connect_peers_head;
3887 send_hello_context->pg = pg;
3888 GNUNET_SCHEDULER_add_now(&schedule_send_hellos, send_hello_context);
3891 for (pg_iter = 0; pg_iter < pg->max_outstanding_connections; pg_iter++)
3893 preschedule_connect (pg);
3901 * Takes a peer group and creates a topology based on the
3902 * one specified. Creates a topology means generates friend
3903 * files for the peers so they can only connect to those allowed
3904 * by the topology. This will only have an effect once peers
3905 * are started if the FRIENDS_ONLY option is set in the base
3906 * config. Also takes an optional restrict topology which
3907 * disallows connections based on particular transports
3908 * UNLESS they are specified in the restricted topology.
3910 * @param pg the peer group struct representing the running peers
3911 * @param topology which topology to connect the peers in
3912 * @param restrict_topology disallow restrict_transports transport
3913 * connections to peers NOT in this topology
3914 * use GNUNET_TESTING_TOPOLOGY_NONE for no restrictions
3915 * @param restrict_transports space delimited list of transports to blacklist
3916 * to create restricted topology
3918 * @return the maximum number of connections were all allowed peers
3919 * connected to each other
3922 GNUNET_TESTING_create_topology(struct GNUNET_TESTING_PeerGroup *pg,
3923 enum GNUNET_TESTING_Topology topology,
3924 enum GNUNET_TESTING_Topology restrict_topology,
3925 const char *restrict_transports)
3929 unsigned int num_connections;
3930 int unblacklisted_connections;
3932 struct PeerConnection *conn_iter;
3933 struct PeerConnection *temp_conn;
3938 for (i = 0; i < pg->total; i++)
3940 pg->peers[i].allowed_peers =
3941 GNUNET_CONTAINER_multihashmap_create (100);
3942 pg->peers[i].connect_peers =
3943 GNUNET_CONTAINER_multihashmap_create (100);
3944 pg->peers[i].blacklisted_peers =
3945 GNUNET_CONTAINER_multihashmap_create (100);
3946 pg->peers[i].pg = pg;
3952 case GNUNET_TESTING_TOPOLOGY_CLIQUE:
3954 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, _("Creating clique topology\n"));
3956 num_connections = create_clique (pg, &add_connections, ALLOWED, GNUNET_NO);
3958 case GNUNET_TESTING_TOPOLOGY_SMALL_WORLD_RING:
3960 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
3961 _("Creating small world (ring) topology\n"));
3963 num_connections = create_small_world_ring (pg, &add_connections, ALLOWED);
3965 case GNUNET_TESTING_TOPOLOGY_SMALL_WORLD:
3967 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
3968 _("Creating small world (2d-torus) topology\n"));
3970 num_connections = create_small_world (pg, &add_connections, ALLOWED);
3972 case GNUNET_TESTING_TOPOLOGY_RING:
3974 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, _("Creating ring topology\n"));
3976 num_connections = create_ring (pg, &add_connections, ALLOWED);
3978 case GNUNET_TESTING_TOPOLOGY_2D_TORUS:
3980 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, _("Creating 2d torus topology\n"));
3982 num_connections = create_2d_torus (pg, &add_connections, ALLOWED);
3984 case GNUNET_TESTING_TOPOLOGY_ERDOS_RENYI:
3986 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
3987 _("Creating Erdos-Renyi topology\n"));
3989 num_connections = create_erdos_renyi (pg, &add_connections, ALLOWED);
3991 case GNUNET_TESTING_TOPOLOGY_INTERNAT:
3993 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, _("Creating InterNAT topology\n"));
3995 num_connections = create_nated_internet (pg, &add_connections, ALLOWED);
3997 case GNUNET_TESTING_TOPOLOGY_SCALE_FREE:
3999 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
4000 _("Creating Scale Free topology\n"));
4002 num_connections = create_scale_free (pg, &add_connections, ALLOWED);
4004 case GNUNET_TESTING_TOPOLOGY_LINE:
4006 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
4007 _("Creating straight line topology\n"));
4009 num_connections = create_line (pg, &add_connections, ALLOWED);
4011 case GNUNET_TESTING_TOPOLOGY_FROM_FILE:
4013 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
4014 _("Creating topology from file!\n"));
4016 if (GNUNET_OK == GNUNET_CONFIGURATION_get_value_string (pg->cfg, "testing",
4019 num_connections = create_from_file (pg, filename, &add_connections,
4024 GNUNET_ERROR_TYPE_WARNING,
4025 "Missing configuration option TESTING:TOPOLOGY_FILE for creating topology from file!\n");
4026 num_connections = 0;
4029 case GNUNET_TESTING_TOPOLOGY_NONE:
4031 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
4033 ("Creating no allowed topology (all peers can connect at core level)\n"));
4035 num_connections = pg->total * pg->total; /* Clique is allowed! */
4038 num_connections = 0;
4042 if (GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno (pg->cfg, "TESTING",
4045 ret = create_and_copy_friend_files (pg);
4046 if (ret != GNUNET_OK)
4049 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
4050 _("Failed during friend file copying!\n"));
4052 return GNUNET_SYSERR;
4057 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
4058 _("Friend files created/copied successfully!\n"));
4063 /* Use the create clique method to initially set all connections as blacklisted. */
4064 if ((restrict_topology != GNUNET_TESTING_TOPOLOGY_NONE) && (restrict_topology
4065 != GNUNET_TESTING_TOPOLOGY_FROM_FILE))
4066 create_clique (pg, &add_connections, BLACKLIST, GNUNET_NO);
4068 return num_connections;
4070 unblacklisted_connections = 0;
4071 /* Un-blacklist connections as per the topology specified */
4072 switch (restrict_topology)
4074 case GNUNET_TESTING_TOPOLOGY_CLIQUE:
4076 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
4077 _("Blacklisting all but clique topology\n"));
4079 unblacklisted_connections = create_clique (pg, &remove_connections,
4080 BLACKLIST, GNUNET_NO);
4082 case GNUNET_TESTING_TOPOLOGY_SMALL_WORLD_RING:
4084 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
4085 _("Blacklisting all but small world (ring) topology\n"));
4087 unblacklisted_connections = create_small_world_ring (pg,
4088 &remove_connections,
4091 case GNUNET_TESTING_TOPOLOGY_SMALL_WORLD:
4093 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
4095 ("Blacklisting all but small world (2d-torus) topology\n"));
4097 unblacklisted_connections = create_small_world (pg, &remove_connections,
4100 case GNUNET_TESTING_TOPOLOGY_RING:
4102 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
4103 _("Blacklisting all but ring topology\n"));
4105 unblacklisted_connections
4106 = create_ring (pg, &remove_connections, BLACKLIST);
4108 case GNUNET_TESTING_TOPOLOGY_2D_TORUS:
4110 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
4111 _("Blacklisting all but 2d torus topology\n"));
4113 unblacklisted_connections = create_2d_torus (pg, &remove_connections,
4116 case GNUNET_TESTING_TOPOLOGY_ERDOS_RENYI:
4118 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
4119 _("Blacklisting all but Erdos-Renyi topology\n"));
4121 unblacklisted_connections = create_erdos_renyi (pg, &remove_connections,
4124 case GNUNET_TESTING_TOPOLOGY_INTERNAT:
4126 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
4127 _("Blacklisting all but InterNAT topology\n"));
4131 for (off = 0; off < pg->total; off++)
4133 conn_iter = pg->peers[off].allowed_peers_head;
4134 while (conn_iter != NULL)
4136 temp_conn = conn_iter->next;
4137 GNUNET_free(conn_iter);
4138 conn_iter = temp_conn;
4140 pg->peers[off].allowed_peers_head = NULL;
4141 pg->peers[off].allowed_peers_tail = NULL;
4143 conn_iter = pg->peers[off].connect_peers_head;
4144 while (conn_iter != NULL)
4146 temp_conn = conn_iter->next;
4147 GNUNET_free(conn_iter);
4148 conn_iter = temp_conn;
4150 pg->peers[off].connect_peers_head = NULL;
4151 pg->peers[off].connect_peers_tail = NULL;
4153 unblacklisted_connections
4154 = create_nated_internet_copy (pg, &remove_connections, BLACKLIST);
4156 unblacklisted_connections =
4157 create_nated_internet (pg, &remove_connections, BLACKLIST);
4161 case GNUNET_TESTING_TOPOLOGY_SCALE_FREE:
4163 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
4164 _("Blacklisting all but Scale Free topology\n"));
4166 unblacklisted_connections = create_scale_free (pg, &remove_connections,
4169 case GNUNET_TESTING_TOPOLOGY_LINE:
4171 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
4172 _("Blacklisting all but straight line topology\n"));
4174 unblacklisted_connections
4175 = create_line (pg, &remove_connections, BLACKLIST);
4180 if ((unblacklisted_connections > 0) && (restrict_transports != NULL))
4182 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Creating blacklist with `%s'\n",
4183 restrict_transports);
4184 ret = create_and_copy_blacklist_files (pg, restrict_transports);
4185 if (ret != GNUNET_OK)
4188 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
4189 _("Failed during blacklist file copying!\n"));
4196 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
4197 _("Blacklist files created/copied successfully!\n"));
4201 return num_connections;
4206 * Iterator for choosing random peers to connect.
4208 * @param cls closure, a RandomContext
4209 * @param key the key the second Daemon was stored under
4210 * @param value the GNUNET_TESTING_Daemon that the first is to connect to
4212 * @return GNUNET_YES to continue iteration
4215 random_connect_iterator (void *cls, const GNUNET_HashCode * key, void *value)
4217 struct RandomContext *random_ctx = cls;
4218 double random_number;
4219 uint32_t second_pos;
4220 GNUNET_HashCode first_hash;
4223 GNUNET_CRYPTO_random_u64 (GNUNET_CRYPTO_QUALITY_WEAK,
4224 UINT64_MAX)) / ((double) UINT64_MAX);
4225 if (random_number < random_ctx->percentage)
4227 GNUNET_assert (GNUNET_OK ==
4228 GNUNET_CONTAINER_multihashmap_put (random_ctx->
4229 first->connect_peers_working_set,
4231 GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY));
4234 /* Now we have considered this particular connection, remove it from the second peer so it's not double counted */
4235 uid_from_hash (key, &second_pos);
4236 hash_from_uid (random_ctx->first_uid, &first_hash);
4237 GNUNET_assert (random_ctx->pg->total > second_pos);
4238 GNUNET_assert (GNUNET_YES ==
4239 GNUNET_CONTAINER_multihashmap_remove (random_ctx->
4241 [second_pos].connect_peers,
4250 * Iterator for adding at least X peers to a peers connection set.
4252 * @param cls closure, MinimumContext
4253 * @param key the key the second Daemon was stored under
4254 * @param value the GNUNET_TESTING_Daemon that the first is to connect to
4256 * @return GNUNET_YES to continue iteration
4259 minimum_connect_iterator (void *cls, const GNUNET_HashCode * key, void *value)
4261 struct MinimumContext *min_ctx = cls;
4262 uint32_t second_pos;
4263 GNUNET_HashCode first_hash;
4266 if (GNUNET_CONTAINER_multihashmap_size
4267 (min_ctx->first->connect_peers_working_set) < min_ctx->num_to_add)
4269 for (i = 0; i < min_ctx->num_to_add; i++)
4271 if (min_ctx->pg_array[i] == min_ctx->current)
4273 GNUNET_assert (GNUNET_OK ==
4274 GNUNET_CONTAINER_multihashmap_put
4275 (min_ctx->first->connect_peers_working_set, key,
4277 GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY));
4278 uid_from_hash (key, &second_pos);
4279 hash_from_uid (min_ctx->first_uid, &first_hash);
4280 GNUNET_assert (min_ctx->pg->total > second_pos);
4281 GNUNET_assert (GNUNET_OK ==
4282 GNUNET_CONTAINER_multihashmap_put (min_ctx->
4284 [second_pos].connect_peers_working_set,
4288 GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY));
4289 /* Now we have added this particular connection, remove it from the second peer's map so it's not double counted */
4290 GNUNET_assert (GNUNET_YES ==
4291 GNUNET_CONTAINER_multihashmap_remove
4292 (min_ctx->pg->peers[second_pos].connect_peers,
4293 &first_hash, min_ctx->first->daemon));
4300 return GNUNET_NO; /* We can stop iterating, we have enough peers! */
4305 * Iterator for adding peers to a connection set based on a depth first search.
4307 * @param cls closure, MinimumContext
4308 * @param key the key the second daemon was stored under
4309 * @param value the GNUNET_TESTING_Daemon that the first is to connect to
4311 * @return GNUNET_YES to continue iteration
4314 dfs_connect_iterator (void *cls, const GNUNET_HashCode * key, void *value)
4316 struct DFSContext *dfs_ctx = cls;
4317 GNUNET_HashCode first_hash;
4319 if (dfs_ctx->current == dfs_ctx->chosen)
4321 GNUNET_assert (GNUNET_OK ==
4322 GNUNET_CONTAINER_multihashmap_put (dfs_ctx->
4323 first->connect_peers_working_set,
4325 GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY));
4326 uid_from_hash (key, &dfs_ctx->second_uid);
4327 hash_from_uid (dfs_ctx->first_uid, &first_hash);
4328 GNUNET_assert (GNUNET_OK ==
4329 GNUNET_CONTAINER_multihashmap_put (dfs_ctx->
4331 [dfs_ctx->second_uid].connect_peers_working_set,
4335 GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY));
4336 GNUNET_assert (GNUNET_YES ==
4337 GNUNET_CONTAINER_multihashmap_remove (dfs_ctx->
4339 [dfs_ctx->second_uid].connect_peers,
4343 /* Can't remove second from first yet because we are currently iterating, hence the return value in the DFSContext! */
4344 return GNUNET_NO; /* We have found our peer, don't iterate more */
4353 * From the set of connections possible, choose percentage percent of connections
4354 * to actually connect.
4356 * @param pg the peergroup we are dealing with
4357 * @param percentage what percent of total connections to make
4360 choose_random_connections(struct GNUNET_TESTING_PeerGroup *pg,
4365 struct PeerConnection *conn_iter;
4366 double random_number;
4368 struct RandomContext random_ctx;
4371 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
4374 conn_iter = pg->peers[pg_iter].connect_peers_head;
4375 while (conn_iter != NULL)
4378 = ((double) GNUNET_CRYPTO_random_u64 (GNUNET_CRYPTO_QUALITY_WEAK,
4380 / ((double) UINT64_MAX);
4381 if (random_number < percentage)
4383 add_connections (pg, pg_iter, conn_iter->index, WORKING_SET,
4386 conn_iter = conn_iter->next;
4389 random_ctx.first_uid = pg_iter;
4390 random_ctx.first = &pg->peers[pg_iter];
4391 random_ctx.percentage = percentage;
4393 pg->peers[pg_iter].connect_peers_working_set
4394 = GNUNET_CONTAINER_multihashmap_create (pg->total);
4395 GNUNET_CONTAINER_multihashmap_iterate (pg->peers[pg_iter].connect_peers,
4396 &random_connect_iterator,
4398 /* Now remove the old connections */
4399 GNUNET_CONTAINER_multihashmap_destroy (pg->
4400 peers[pg_iter].connect_peers);
4401 /* And replace with the random set */
4402 pg->peers[pg_iter].connect_peers
4403 = pg->peers[pg_iter].connect_peers_working_set;
4407 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
4409 conn_iter = pg->peers[pg_iter].connect_peers_head;
4410 while (pg->peers[pg_iter].connect_peers_head != NULL)
4411 remove_connections (pg, pg_iter,
4412 pg->peers[pg_iter].connect_peers_head->index,
4413 CONNECT, GNUNET_YES);
4415 pg->peers[pg_iter].connect_peers_head
4416 = pg->peers[pg_iter].connect_peers_working_set_head;
4417 pg->peers[pg_iter].connect_peers_tail
4418 = pg->peers[pg_iter].connect_peers_working_set_tail;
4419 pg->peers[pg_iter].connect_peers_working_set_head = NULL;
4420 pg->peers[pg_iter].connect_peers_working_set_tail = NULL;
4425 * Count the number of connections in a linked list of connections.
4427 * @param conn_list the connection list to get the count of
4429 * @return the number of elements in the list
4432 count_connections(struct PeerConnection *conn_list)
4434 struct PeerConnection *iter;
4438 while (iter != NULL)
4447 count_workingset_connections(struct GNUNET_TESTING_PeerGroup *pg)
4450 unsigned int pg_iter;
4452 struct PeerConnection *conn_iter;
4456 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
4459 conn_iter = pg->peers[pg_iter].connect_peers_working_set_head;
4460 while (conn_iter != NULL)
4463 conn_iter = conn_iter->next;
4467 GNUNET_CONTAINER_multihashmap_size (pg->
4469 [pg_iter].connect_peers_working_set);
4477 count_allowed_connections(struct GNUNET_TESTING_PeerGroup *pg)
4480 unsigned int pg_iter;
4482 struct PeerConnection *conn_iter;
4486 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
4489 conn_iter = pg->peers[pg_iter].allowed_peers_head;
4490 while (conn_iter != NULL)
4493 conn_iter = conn_iter->next;
4497 GNUNET_CONTAINER_multihashmap_size (pg->
4499 [pg_iter].allowed_peers);
4507 * From the set of connections possible, choose at least num connections per
4510 * @param pg the peergroup we are dealing with
4511 * @param num how many connections at least should each peer have (if possible)?
4514 choose_minimum(struct GNUNET_TESTING_PeerGroup *pg, unsigned int num)
4517 struct MinimumContext minimum_ctx;
4519 struct PeerConnection *conn_iter;
4520 unsigned int temp_list_size;
4523 uint32_t random; /* Random list entry to connect peer to */
4528 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
4531 = count_connections (pg->peers[pg_iter].connect_peers_head);
4532 if (temp_list_size == 0)
4534 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
4535 "Peer %d has 0 connections!?!?\n", pg_iter);
4538 for (i = 0; i < num; i++)
4540 random = GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK,
4542 conn_iter = pg->peers[pg_iter].connect_peers_head;
4543 for (count = 0; count < random; count++)
4544 conn_iter = conn_iter->next;
4545 /* We now have a random connection, connect it! */
4546 GNUNET_assert(conn_iter != NULL);
4547 add_connections (pg, pg_iter, conn_iter->index, WORKING_SET,
4552 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
4554 pg->peers[pg_iter].connect_peers_working_set =
4555 GNUNET_CONTAINER_multihashmap_create (num);
4558 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
4560 minimum_ctx.first_uid = pg_iter;
4561 minimum_ctx.pg_array =
4562 GNUNET_CRYPTO_random_permute (GNUNET_CRYPTO_QUALITY_WEAK,
4563 GNUNET_CONTAINER_multihashmap_size
4564 (pg->peers[pg_iter].connect_peers));
4565 minimum_ctx.first = &pg->peers[pg_iter];
4566 minimum_ctx.pg = pg;
4567 minimum_ctx.num_to_add = num;
4568 minimum_ctx.current = 0;
4569 GNUNET_CONTAINER_multihashmap_iterate (pg->peers[pg_iter].connect_peers,
4570 &minimum_connect_iterator,
4574 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
4576 /* Remove the "old" connections */
4577 GNUNET_CONTAINER_multihashmap_destroy (pg->
4578 peers[pg_iter].connect_peers);
4579 /* And replace with the working set */
4580 pg->peers[pg_iter].connect_peers =
4581 pg->peers[pg_iter].connect_peers_working_set;
4584 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
4586 while (pg->peers[pg_iter].connect_peers_head != NULL)
4588 conn_iter = pg->peers[pg_iter].connect_peers_head;
4589 GNUNET_CONTAINER_DLL_remove(pg->peers[pg_iter].connect_peers_head,
4590 pg->peers[pg_iter].connect_peers_tail,
4592 GNUNET_free(conn_iter);
4593 /*remove_connections(pg, pg_iter, pg->peers[pg_iter].connect_peers_head->index, CONNECT, GNUNET_YES);*/
4596 pg->peers[pg_iter].connect_peers_head
4597 = pg->peers[pg_iter].connect_peers_working_set_head;
4598 pg->peers[pg_iter].connect_peers_tail
4599 = pg->peers[pg_iter].connect_peers_working_set_tail;
4600 pg->peers[pg_iter].connect_peers_working_set_head = NULL;
4601 pg->peers[pg_iter].connect_peers_working_set_tail = NULL;
4606 struct FindClosestContext
4609 * The currently known closest peer.
4611 struct GNUNET_TESTING_Daemon *closest;
4614 * The info for the peer we are adding connections for.
4616 struct PeerData *curr_peer;
4619 * The distance (bits) between the current
4620 * peer and the currently known closest.
4622 unsigned int closest_dist;
4625 * The offset of the closest known peer in
4628 unsigned int closest_num;
4632 * Iterator over hash map entries of the allowed
4633 * peer connections. Find the closest, not already
4634 * connected peer and return it.
4636 * @param cls closure (struct FindClosestContext)
4637 * @param key current key code (hash of offset in pg)
4638 * @param value value in the hash map - a GNUNET_TESTING_Daemon
4639 * @return GNUNET_YES if we should continue to
4644 find_closest_peers (void *cls, const GNUNET_HashCode * key, void *value)
4646 struct FindClosestContext *closest_ctx = cls;
4647 struct GNUNET_TESTING_Daemon *daemon = value;
4649 if (((closest_ctx->closest == NULL) ||
4650 (GNUNET_CRYPTO_hash_matching_bits
4651 (&daemon->id.hashPubKey,
4652 &closest_ctx->curr_peer->daemon->id.hashPubKey) >
4653 closest_ctx->closest_dist))
4655 GNUNET_CONTAINER_multihashmap_contains (closest_ctx->
4656 curr_peer->connect_peers,
4659 closest_ctx->closest_dist =
4660 GNUNET_CRYPTO_hash_matching_bits (&daemon->id.hashPubKey,
4661 &closest_ctx->curr_peer->daemon->
4663 closest_ctx->closest = daemon;
4664 uid_from_hash (key, &closest_ctx->closest_num);
4670 * From the set of connections possible, choose at num connections per
4671 * peer based on depth which are closest out of those allowed. Guaranteed
4672 * to add num peers to connect to, provided there are that many peers
4673 * in the underlay topology to connect to.
4675 * @param pg the peergroup we are dealing with
4676 * @param num how many connections at least should each peer have (if possible)?
4677 * @param proc processor to actually add the connections
4678 * @param list the peer list to use
4681 add_closest (struct GNUNET_TESTING_PeerGroup *pg, unsigned int num,
4682 GNUNET_TESTING_ConnectionProcessor proc, enum PeerLists list)
4687 struct FindClosestContext closest_ctx;
4692 for (i = 0; i < num; i++) /* Each time find a closest peer (from those available) */
4694 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
4696 closest_ctx.curr_peer = &pg->peers[pg_iter];
4697 closest_ctx.closest = NULL;
4698 closest_ctx.closest_dist = 0;
4699 closest_ctx.closest_num = 0;
4700 GNUNET_CONTAINER_multihashmap_iterate (pg->
4701 peers[pg_iter].allowed_peers,
4702 &find_closest_peers,
4704 if (closest_ctx.closest != NULL)
4706 GNUNET_assert (closest_ctx.closest_num < pg->total);
4707 proc (pg, pg_iter, closest_ctx.closest_num, list);
4715 * From the set of connections possible, choose at least num connections per
4716 * peer based on depth first traversal of peer connections. If DFS leaves
4717 * peers unconnected, ensure those peers get connections.
4719 * @param pg the peergroup we are dealing with
4720 * @param num how many connections at least should each peer have (if possible)?
4723 perform_dfs(struct GNUNET_TESTING_PeerGroup *pg, unsigned int num)
4727 uint32_t starting_peer;
4728 uint32_t least_connections;
4729 uint32_t random_connection;
4731 unsigned int temp_count;
4732 struct PeerConnection *peer_iter;
4734 struct DFSContext dfs_ctx;
4735 GNUNET_HashCode second_hash;
4741 while ((count_workingset_connections (pg) < num * pg->total)
4742 && (count_allowed_connections (pg) > 0))
4744 if (dfs_count % pg->total == 0) /* Restart the DFS at some weakly connected peer */
4746 least_connections = -1; /* Set to very high number */
4747 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
4750 = count_connections (
4751 pg->peers[pg_iter].connect_peers_working_set_head);
4752 if (temp_count < least_connections)
4754 starting_peer = pg_iter;
4755 least_connections = temp_count;
4761 = count_connections (pg->peers[starting_peer].connect_peers_head);
4762 if (temp_count == 0)
4763 continue; /* FIXME: infinite loop? */
4765 random_connection = GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK,
4768 peer_iter = pg->peers[starting_peer].connect_peers_head;
4769 while (temp_count < random_connection)
4771 peer_iter = peer_iter->next;
4774 GNUNET_assert(peer_iter != NULL);
4775 add_connections (pg, starting_peer, peer_iter->index, WORKING_SET,
4777 remove_connections (pg, starting_peer, peer_iter->index, CONNECT,
4779 starting_peer = peer_iter->index;
4784 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
4786 pg->peers[pg_iter].connect_peers_working_set =
4787 GNUNET_CONTAINER_multihashmap_create (num);
4792 while ((count_workingset_connections (pg) < num * pg->total)
4793 && (count_allowed_connections (pg) > 0))
4795 if (dfs_count % pg->total == 0) /* Restart the DFS at some weakly connected peer */
4797 least_connections = -1; /* Set to very high number */
4798 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
4800 if (GNUNET_CONTAINER_multihashmap_size
4801 (pg->peers[pg_iter].connect_peers_working_set) <
4804 starting_peer = pg_iter;
4806 GNUNET_CONTAINER_multihashmap_size (pg->
4808 [pg_iter].connect_peers_working_set);
4813 if (GNUNET_CONTAINER_multihashmap_size (pg->peers[starting_peer].connect_peers) == 0) /* Ensure there is at least one peer left to connect! */
4819 /* Choose a random peer from the chosen peers set of connections to add */
4821 GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK,
4822 GNUNET_CONTAINER_multihashmap_size
4823 (pg->peers[starting_peer].connect_peers));
4824 dfs_ctx.first_uid = starting_peer;
4825 dfs_ctx.first = &pg->peers[starting_peer];
4827 dfs_ctx.current = 0;
4829 GNUNET_CONTAINER_multihashmap_iterate (pg->
4831 [starting_peer].connect_peers,
4832 &dfs_connect_iterator, &dfs_ctx);
4833 /* Remove the second from the first, since we will be continuing the search and may encounter the first peer again! */
4834 hash_from_uid (dfs_ctx.second_uid, &second_hash);
4835 GNUNET_assert (GNUNET_YES ==
4836 GNUNET_CONTAINER_multihashmap_remove (pg->peers
4837 [starting_peer].connect_peers,
4841 [dfs_ctx.second_uid].daemon));
4842 starting_peer = dfs_ctx.second_uid;
4845 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
4847 /* Remove the "old" connections */
4848 GNUNET_CONTAINER_multihashmap_destroy (pg->
4849 peers[pg_iter].connect_peers);
4850 /* And replace with the working set */
4851 pg->peers[pg_iter].connect_peers =
4852 pg->peers[pg_iter].connect_peers_working_set;
4858 * Internal callback for topology information for a particular peer.
4861 internal_topology_callback(void *cls, const struct GNUNET_PeerIdentity *peer,
4862 const struct GNUNET_TRANSPORT_ATS_Information *atsi)
4864 struct CoreContext *core_ctx = cls;
4865 struct TopologyIterateContext *iter_ctx = core_ctx->iter_context;
4867 if (peer == NULL) /* Either finished, or something went wrong */
4869 iter_ctx->completed++;
4870 iter_ctx->connected--;
4871 /* One core context allocated per iteration, must free! */
4872 GNUNET_free (core_ctx);
4876 iter_ctx->topology_cb (iter_ctx->cls, &core_ctx->daemon->id, peer, NULL);
4879 if (iter_ctx->completed == iter_ctx->total)
4881 iter_ctx->topology_cb (iter_ctx->cls, NULL, NULL, NULL);
4882 /* Once all are done, free the iteration context */
4883 GNUNET_free (iter_ctx);
4888 * Check running topology iteration tasks, if below max start a new one, otherwise
4889 * schedule for some time in the future.
4892 schedule_get_topology(void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
4894 struct CoreContext *core_context = cls;
4895 struct TopologyIterateContext *topology_context =
4896 (struct TopologyIterateContext *) core_context->iter_context;
4897 if ( (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN) != 0)
4900 if (topology_context->connected
4901 > topology_context->pg->max_outstanding_connections)
4903 #if VERBOSE_TESTING > 2
4904 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
4906 ("Delaying connect, we have too many outstanding connections!\n"));
4908 GNUNET_SCHEDULER_add_delayed (
4909 GNUNET_TIME_relative_multiply (
4910 GNUNET_TIME_UNIT_MILLISECONDS,
4912 &schedule_get_topology, core_context);
4916 #if VERBOSE_TESTING > 2
4917 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
4918 _("Creating connection, outstanding_connections is %d\n"),
4919 outstanding_connects);
4921 topology_context->connected++;
4923 if (GNUNET_OK != GNUNET_CORE_iterate_peers (core_context->daemon->cfg,
4924 &internal_topology_callback,
4927 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Topology iteration failed.\n");
4928 internal_topology_callback (core_context, NULL, NULL);
4934 * Iterate over all (running) peers in the peer group, retrieve
4935 * all connections that each currently has.
4938 GNUNET_TESTING_get_topology(struct GNUNET_TESTING_PeerGroup *pg,
4939 GNUNET_TESTING_NotifyTopology cb, void *cls)
4941 struct TopologyIterateContext *topology_context;
4942 struct CoreContext *core_ctx;
4944 unsigned int total_count;
4946 /* Allocate a single topology iteration context */
4947 topology_context = GNUNET_malloc (sizeof (struct TopologyIterateContext));
4948 topology_context->topology_cb = cb;
4949 topology_context->cls = cls;
4950 topology_context->pg = pg;
4952 for (i = 0; i < pg->total; i++)
4954 if (pg->peers[i].daemon->running == GNUNET_YES)
4956 /* Allocate one core context per core we need to connect to */
4957 core_ctx = GNUNET_malloc (sizeof (struct CoreContext));
4958 core_ctx->daemon = pg->peers[i].daemon;
4959 /* Set back pointer to topology iteration context */
4960 core_ctx->iter_context = topology_context;
4961 GNUNET_SCHEDULER_add_now (&schedule_get_topology, core_ctx);
4965 if (total_count == 0)
4967 cb (cls, NULL, NULL, "Cannot iterate over topology, no running peers!");
4968 GNUNET_free (topology_context);
4971 topology_context->total = total_count;
4976 * Callback function to process statistic values.
4977 * This handler is here only really to insert a peer
4978 * identity (or daemon) so the statistics can be uniquely
4979 * tied to a single running peer.
4981 * @param cls closure
4982 * @param subsystem name of subsystem that created the statistic
4983 * @param name the name of the datum
4984 * @param value the current value
4985 * @param is_persistent GNUNET_YES if the value is persistent, GNUNET_NO if not
4986 * @return GNUNET_OK to continue, GNUNET_SYSERR to abort iteration
4989 internal_stats_callback(void *cls, const char *subsystem, const char *name,
4990 uint64_t value, int is_persistent)
4992 struct StatsCoreContext *core_context = cls;
4993 struct StatsIterateContext *stats_context =
4994 (struct StatsIterateContext *) core_context->iter_context;
4996 return stats_context->proc (stats_context->cls, &core_context->daemon->id,
4997 subsystem, name, value, is_persistent);
5001 * Internal continuation call for statistics iteration.
5003 * @param cls closure, the CoreContext for this iteration
5004 * @param success whether or not the statistics iterations
5005 * was canceled or not (we don't care)
5008 internal_stats_cont(void *cls, int success)
5010 struct StatsCoreContext *core_context = cls;
5011 struct StatsIterateContext *stats_context =
5012 (struct StatsIterateContext *) core_context->iter_context;
5014 stats_context->connected--;
5015 stats_context->completed++;
5017 if (stats_context->completed == stats_context->total)
5019 stats_context->cont (stats_context->cls, GNUNET_YES);
5020 GNUNET_free (stats_context);
5023 if (core_context->stats_handle != NULL)
5024 GNUNET_STATISTICS_destroy (core_context->stats_handle, GNUNET_NO);
5026 GNUNET_free (core_context);
5030 * Check running topology iteration tasks, if below max start a new one, otherwise
5031 * schedule for some time in the future.
5034 schedule_get_statistics(void *cls,
5035 const struct GNUNET_SCHEDULER_TaskContext *tc)
5037 struct StatsCoreContext *core_context = cls;
5038 struct StatsIterateContext *stats_context =
5039 (struct StatsIterateContext *) core_context->iter_context;
5041 if ( (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN) != 0)
5044 if (stats_context->connected > stats_context->pg->max_outstanding_connections)
5046 #if VERBOSE_TESTING > 2
5047 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
5049 ("Delaying connect, we have too many outstanding connections!\n"));
5051 GNUNET_SCHEDULER_add_delayed (
5052 GNUNET_TIME_relative_multiply (
5053 GNUNET_TIME_UNIT_MILLISECONDS,
5055 &schedule_get_statistics, core_context);
5059 #if VERBOSE_TESTING > 2
5060 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
5061 _("Creating connection, outstanding_connections is %d\n"),
5062 outstanding_connects);
5065 stats_context->connected++;
5066 core_context->stats_handle
5067 = GNUNET_STATISTICS_create ("testing", core_context->daemon->cfg);
5068 if (core_context->stats_handle == NULL)
5070 internal_stats_cont (core_context, GNUNET_NO);
5074 core_context->stats_get_handle
5075 = GNUNET_STATISTICS_get (core_context->stats_handle, NULL, NULL,
5076 GNUNET_TIME_relative_get_forever (),
5077 &internal_stats_cont,
5078 &internal_stats_callback, core_context);
5079 if (core_context->stats_get_handle == NULL)
5080 internal_stats_cont (core_context, GNUNET_NO);
5085 struct DuplicateStats
5088 * Next item in the list
5090 struct DuplicateStats *next;
5093 * Nasty string, concatenation of relevant information.
5095 char *unique_string;
5099 * Check whether the combination of port/host/unix domain socket
5100 * already exists in the list of peers being checked for statistics.
5102 * @param pg the peergroup in question
5103 * @param specific_peer the peer we're concerned with
5104 * @param stats_list the list to return to the caller
5106 * @return GNUNET_YES if the statistics instance has been seen already,
5107 * GNUNET_NO if not (and we may have added it to the list)
5110 stats_check_existing(struct GNUNET_TESTING_PeerGroup *pg,
5111 struct PeerData *specific_peer,
5112 struct DuplicateStats **stats_list)
5114 struct DuplicateStats *pos;
5115 char *unix_domain_socket;
5116 unsigned long long port;
5119 != GNUNET_CONFIGURATION_get_value_yesno (pg->cfg, "testing",
5120 "single_statistics_per_host"))
5121 return GNUNET_NO; /* Each peer has its own statistics instance, do nothing! */
5124 if (GNUNET_OK != GNUNET_CONFIGURATION_get_value_string (specific_peer->cfg,
5127 &unix_domain_socket))
5130 if (GNUNET_OK != GNUNET_CONFIGURATION_get_value_number (specific_peer->cfg,
5131 "statistics", "port",
5134 GNUNET_free(unix_domain_socket);
5138 if (specific_peer->daemon->hostname != NULL)
5139 GNUNET_asprintf (&to_match, "%s%s%llu", specific_peer->daemon->hostname,
5140 unix_domain_socket, port);
5142 GNUNET_asprintf (&to_match, "%s%llu", unix_domain_socket, port);
5146 if (0 == strcmp (to_match, pos->unique_string))
5148 GNUNET_free (unix_domain_socket);
5149 GNUNET_free (to_match);
5154 pos = GNUNET_malloc (sizeof (struct DuplicateStats));
5155 pos->unique_string = to_match;
5156 pos->next = *stats_list;
5158 GNUNET_free (unix_domain_socket);
5163 * Iterate over all (running) peers in the peer group, retrieve
5164 * all statistics from each.
5166 * @param pg the peergroup to iterate statistics of
5167 * @param cont continuation to call once all stats have been retrieved
5168 * @param proc processing function for each statistic from each peer
5169 * @param cls closure to pass to proc
5173 GNUNET_TESTING_get_statistics(struct GNUNET_TESTING_PeerGroup *pg,
5174 GNUNET_STATISTICS_Callback cont,
5175 GNUNET_TESTING_STATISTICS_Iterator proc,
5178 struct StatsIterateContext *stats_context;
5179 struct StatsCoreContext *core_ctx;
5181 unsigned int total_count;
5182 struct DuplicateStats *stats_list;
5183 struct DuplicateStats *pos;
5186 /* Allocate a single stats iteration context */
5187 stats_context = GNUNET_malloc (sizeof (struct StatsIterateContext));
5188 stats_context->cont = cont;
5189 stats_context->proc = proc;
5190 stats_context->cls = cls;
5191 stats_context->pg = pg;
5194 for (i = 0; i < pg->total; i++)
5196 if ((pg->peers[i].daemon->running == GNUNET_YES) && (GNUNET_NO
5197 == stats_check_existing (pg, &pg->peers[i], &stats_list)))
5199 /* Allocate one core context per core we need to connect to */
5200 core_ctx = GNUNET_malloc (sizeof (struct StatsCoreContext));
5201 core_ctx->daemon = pg->peers[i].daemon;
5202 /* Set back pointer to topology iteration context */
5203 core_ctx->iter_context = stats_context;
5204 GNUNET_SCHEDULER_add_now (&schedule_get_statistics, core_ctx);
5209 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
5210 "Retrieving stats from %u total instances.\n", total_count);
5211 stats_context->total = total_count;
5212 if (stats_list != NULL)
5217 GNUNET_free (pos->unique_string);
5218 stats_list = pos->next;
5220 pos = stats_list->next;
5227 * Stop the connection process temporarily.
5229 * @param pg the peer group to stop connecting
5232 GNUNET_TESTING_stop_connections(struct GNUNET_TESTING_PeerGroup *pg)
5234 pg->stop_connects = GNUNET_YES;
5238 * Resume the connection process temporarily.
5240 * @param pg the peer group to resume connecting
5243 GNUNET_TESTING_resume_connections(struct GNUNET_TESTING_PeerGroup *pg)
5245 pg->stop_connects = GNUNET_NO;
5249 * There are many ways to connect peers that are supported by this function.
5250 * To connect peers in the same topology that was created via the
5251 * GNUNET_TESTING_create_topology, the topology variable must be set to
5252 * GNUNET_TESTING_TOPOLOGY_NONE. If the topology variable is specified,
5253 * a new instance of that topology will be generated and attempted to be
5254 * connected. This could result in some connections being impossible,
5255 * because some topologies are non-deterministic.
5257 * @param pg the peer group struct representing the running peers
5258 * @param topology which topology to connect the peers in
5259 * @param options options for connecting the topology
5260 * @param option_modifier modifier for options that take a parameter
5261 * @param connect_timeout how long to wait before giving up on connecting
5263 * @param connect_attempts how many times to attempt to connect two peers
5264 * over the connect_timeout duration
5265 * @param notify_callback notification to be called once all connections completed
5266 * @param notify_cls closure for notification callback
5268 * @return the number of connections that will be attempted, GNUNET_SYSERR on error
5271 GNUNET_TESTING_connect_topology(
5272 struct GNUNET_TESTING_PeerGroup *pg,
5273 enum GNUNET_TESTING_Topology topology,
5274 enum GNUNET_TESTING_TopologyOption options,
5275 double option_modifier,
5276 struct GNUNET_TIME_Relative connect_timeout,
5277 unsigned int connect_attempts,
5278 GNUNET_TESTING_NotifyCompletion notify_callback,
5283 case GNUNET_TESTING_TOPOLOGY_CLIQUE:
5284 #if VERBOSE_TOPOLOGY
5285 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
5286 _("Creating clique CONNECT topology\n"));
5288 create_clique (pg, &add_connections, CONNECT, GNUNET_NO);
5290 case GNUNET_TESTING_TOPOLOGY_SMALL_WORLD_RING:
5291 #if VERBOSE_TOPOLOGY
5292 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
5293 _("Creating small world (ring) CONNECT topology\n"));
5295 create_small_world_ring (pg, &add_connections, CONNECT);
5297 case GNUNET_TESTING_TOPOLOGY_SMALL_WORLD:
5298 #if VERBOSE_TOPOLOGY
5299 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
5300 _("Creating small world (2d-torus) CONNECT topology\n"));
5302 create_small_world (pg, &add_connections, CONNECT);
5304 case GNUNET_TESTING_TOPOLOGY_RING:
5305 #if VERBOSE_TOPOLOGY
5306 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, _("Creating ring CONNECT topology\n"));
5308 create_ring (pg, &add_connections, CONNECT);
5310 case GNUNET_TESTING_TOPOLOGY_2D_TORUS:
5311 #if VERBOSE_TOPOLOGY
5312 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
5313 _("Creating 2d torus CONNECT topology\n"));
5315 create_2d_torus (pg, &add_connections, CONNECT);
5317 case GNUNET_TESTING_TOPOLOGY_ERDOS_RENYI:
5318 #if VERBOSE_TOPOLOGY
5319 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
5320 _("Creating Erdos-Renyi CONNECT topology\n"));
5322 create_erdos_renyi (pg, &add_connections, CONNECT);
5324 case GNUNET_TESTING_TOPOLOGY_INTERNAT:
5325 #if VERBOSE_TOPOLOGY
5326 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
5327 _("Creating InterNAT CONNECT topology\n"));
5329 create_nated_internet (pg, &add_connections, CONNECT);
5331 case GNUNET_TESTING_TOPOLOGY_SCALE_FREE:
5332 #if VERBOSE_TOPOLOGY
5333 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
5334 _("Creating Scale Free CONNECT topology\n"));
5336 create_scale_free (pg, &add_connections, CONNECT);
5338 case GNUNET_TESTING_TOPOLOGY_LINE:
5339 #if VERBOSE_TOPOLOGY
5340 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
5341 _("Creating straight line CONNECT topology\n"));
5343 create_line (pg, &add_connections, CONNECT);
5345 case GNUNET_TESTING_TOPOLOGY_NONE:
5346 #if VERBOSE_TOPOLOGY
5347 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, _("Creating no CONNECT topology\n"));
5349 copy_allowed_topology (pg);
5352 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, _
5353 ("Unknown topology specification, can't connect peers!\n"));
5354 return GNUNET_SYSERR;
5359 case GNUNET_TESTING_TOPOLOGY_OPTION_RANDOM:
5360 #if VERBOSE_TOPOLOGY
5361 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, _
5362 ("Connecting random subset (%'.2f percent) of possible peers\n"), 100
5365 choose_random_connections (pg, option_modifier);
5367 case GNUNET_TESTING_TOPOLOGY_OPTION_MINIMUM:
5368 #if VERBOSE_TOPOLOGY
5369 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
5370 _("Connecting a minimum of %u peers each (if possible)\n"),
5371 (unsigned int) option_modifier);
5373 choose_minimum (pg, (unsigned int) option_modifier);
5375 case GNUNET_TESTING_TOPOLOGY_OPTION_DFS:
5376 #if VERBOSE_TOPOLOGY
5377 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, _
5378 ("Using DFS to connect a minimum of %u peers each (if possible)\n"),
5379 (unsigned int) option_modifier);
5382 perform_dfs (pg, (int) option_modifier);
5385 case GNUNET_TESTING_TOPOLOGY_OPTION_ADD_CLOSEST:
5386 #if VERBOSE_TOPOLOGY
5387 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, _
5388 ("Finding additional %u closest peers each (if possible)\n"),
5389 (unsigned int) option_modifier);
5392 add_closest (pg, (unsigned int) option_modifier,
5393 &add_connections, CONNECT);
5396 case GNUNET_TESTING_TOPOLOGY_OPTION_NONE:
5398 case GNUNET_TESTING_TOPOLOGY_OPTION_ALL:
5404 return connect_topology (pg, connect_timeout, connect_attempts,
5405 notify_callback, notify_cls);
5409 * Lookup and return the number of SSH connections to a host.
5411 * @param hostname the hostname to lookup in the list
5412 * @param pg the peergroup that the host belongs to
5414 * @return the number of current ssh connections to the host
5417 count_outstanding_at_host(const char *hostname,
5418 struct GNUNET_TESTING_PeerGroup *pg)
5420 struct OutstandingSSH *pos;
5422 while ((pos != NULL) && (strcmp (pos->hostname, hostname) != 0))
5424 GNUNET_assert(pos != NULL);
5425 return pos->outstanding;
5429 * Increment the number of SSH connections to a host by one.
5431 * @param hostname the hostname to lookup in the list
5432 * @param pg the peergroup that the host belongs to
5436 increment_outstanding_at_host(const char *hostname,
5437 struct GNUNET_TESTING_PeerGroup *pg)
5439 struct OutstandingSSH *pos;
5441 while ((pos != NULL) && (strcmp (pos->hostname, hostname) != 0))
5443 GNUNET_assert(pos != NULL);
5448 * Decrement the number of SSH connections to a host by one.
5450 * @param hostname the hostname to lookup in the list
5451 * @param pg the peergroup that the host belongs to
5455 decrement_outstanding_at_host(const char *hostname,
5456 struct GNUNET_TESTING_PeerGroup *pg)
5458 struct OutstandingSSH *pos;
5460 while ((pos != NULL) && (strcmp (pos->hostname, hostname) != 0))
5462 GNUNET_assert(pos != NULL);
5467 * Callback that is called whenever a hostkey is generated
5468 * for a peer. Call the real callback and decrement the
5469 * starting counter for the peergroup.
5471 * @param cls closure
5472 * @param id identifier for the daemon, NULL on error
5473 * @param d handle for the daemon
5474 * @param emsg error message (NULL on success)
5477 internal_hostkey_callback(void *cls, const struct GNUNET_PeerIdentity *id,
5478 struct GNUNET_TESTING_Daemon *d, const char *emsg)
5480 struct InternalStartContext *internal_context = cls;
5481 internal_context->peer->pg->starting--;
5482 internal_context->peer->pg->started++;
5483 if (internal_context->hostname != NULL)
5484 decrement_outstanding_at_host (internal_context->hostname,
5485 internal_context->peer->pg);
5486 if (internal_context->hostkey_callback != NULL)
5487 internal_context->hostkey_callback (internal_context->hostkey_cls, id, d,
5489 else if (internal_context->peer->pg->started
5490 == internal_context->peer->pg->total)
5492 internal_context->peer->pg->started = 0; /* Internal startup may use this counter! */
5493 GNUNET_TESTING_daemons_continue_startup (internal_context->peer->pg);
5498 * Callback that is called whenever a peer has finished starting.
5499 * Call the real callback and decrement the starting counter
5500 * for the peergroup.
5502 * @param cls closure
5503 * @param id identifier for the daemon, NULL on error
5505 * @param d handle for the daemon
5506 * @param emsg error message (NULL on success)
5509 internal_startup_callback(void *cls, const struct GNUNET_PeerIdentity *id,
5510 const struct GNUNET_CONFIGURATION_Handle *cfg,
5511 struct GNUNET_TESTING_Daemon *d, const char *emsg)
5513 struct InternalStartContext *internal_context = cls;
5514 internal_context->peer->pg->starting--;
5515 if (internal_context->hostname != NULL)
5516 decrement_outstanding_at_host (internal_context->hostname,
5517 internal_context->peer->pg);
5518 if (internal_context->start_cb != NULL)
5519 internal_context->start_cb (internal_context->start_cb_cls, id, cfg, d,
5524 internal_continue_startup(void *cls,
5525 const struct GNUNET_SCHEDULER_TaskContext *tc)
5527 struct InternalStartContext *internal_context = cls;
5529 if ( (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN) != 0)
5534 if ((internal_context->peer->pg->starting
5535 < internal_context->peer->pg->max_concurrent_ssh)
5536 || ((internal_context->hostname != NULL)
5537 && (count_outstanding_at_host (internal_context->hostname,
5538 internal_context->peer->pg)
5539 < internal_context->peer->pg->max_concurrent_ssh)))
5541 if (internal_context->hostname != NULL)
5542 increment_outstanding_at_host (internal_context->hostname,
5543 internal_context->peer->pg);
5544 internal_context->peer->pg->starting++;
5545 GNUNET_TESTING_daemon_continue_startup (internal_context->peer->daemon);
5549 GNUNET_SCHEDULER_add_delayed (
5550 GNUNET_TIME_relative_multiply (
5551 GNUNET_TIME_UNIT_MILLISECONDS,
5553 &internal_continue_startup,
5559 * Callback for informing us about a successful
5560 * or unsuccessful churn start call.
5562 * @param cls a ChurnContext
5563 * @param id the peer identity of the started peer
5564 * @param cfg the handle to the configuration of the peer
5565 * @param d handle to the daemon for the peer
5566 * @param emsg NULL on success, non-NULL on failure
5570 churn_start_callback(void *cls, const struct GNUNET_PeerIdentity *id,
5571 const struct GNUNET_CONFIGURATION_Handle *cfg,
5572 struct GNUNET_TESTING_Daemon *d, const char *emsg)
5574 struct ChurnRestartContext *startup_ctx = cls;
5575 struct ChurnContext *churn_ctx = startup_ctx->churn_ctx;
5577 unsigned int total_left;
5578 char *error_message;
5580 error_message = NULL;
5583 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
5584 "Churn stop callback failed with error `%s'\n", emsg);
5585 churn_ctx->num_failed_start++;
5589 churn_ctx->num_to_start--;
5592 total_left = (churn_ctx->num_to_stop - churn_ctx->num_failed_stop)
5593 + (churn_ctx->num_to_start - churn_ctx->num_failed_start);
5595 if (total_left == 0)
5597 if ((churn_ctx->num_failed_stop > 0) || (churn_ctx->num_failed_start > 0))
5600 "Churn didn't complete successfully, %u peers failed to start %u peers failed to be stopped!",
5601 churn_ctx->num_failed_start,
5602 churn_ctx->num_failed_stop);
5603 churn_ctx->cb (churn_ctx->cb_cls, error_message);
5604 GNUNET_free_non_null (error_message);
5605 GNUNET_free (churn_ctx);
5606 GNUNET_free (startup_ctx);
5611 schedule_churn_restart(void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
5613 struct PeerRestartContext *peer_restart_ctx = cls;
5614 struct ChurnRestartContext *startup_ctx = peer_restart_ctx->churn_restart_ctx;
5616 if (startup_ctx->outstanding > startup_ctx->pg->max_concurrent_ssh)
5617 GNUNET_SCHEDULER_add_delayed (
5618 GNUNET_TIME_relative_multiply (
5619 GNUNET_TIME_UNIT_MILLISECONDS,
5621 &schedule_churn_restart, peer_restart_ctx);
5624 if (startup_ctx->churn_ctx->service != NULL)
5625 GNUNET_TESTING_daemon_start_stopped_service (peer_restart_ctx->daemon,
5626 startup_ctx->churn_ctx->service,
5627 startup_ctx->timeout,
5628 &churn_start_callback, startup_ctx);
5630 GNUNET_TESTING_daemon_start_stopped (peer_restart_ctx->daemon,
5631 startup_ctx->timeout,
5632 &churn_start_callback, startup_ctx);
5633 GNUNET_free (peer_restart_ctx);
5638 * Callback for informing us about a successful
5639 * or unsuccessful churn start call.
5641 * @param cls a struct ServiceStartContext *startup_ctx
5642 * @param id the peer identity of the started peer
5643 * @param cfg the handle to the configuration of the peer
5644 * @param d handle to the daemon for the peer
5645 * @param emsg NULL on success, non-NULL on failure
5649 service_start_callback(void *cls,
5650 const struct GNUNET_PeerIdentity *id,
5651 const struct GNUNET_CONFIGURATION_Handle *cfg,
5652 struct GNUNET_TESTING_Daemon *d,
5655 struct ServiceStartContext *startup_ctx = (struct ServiceStartContext *)cls;
5659 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
5660 "Service start failed with error `%s'\n", emsg);
5663 startup_ctx->outstanding--;
5664 startup_ctx->remaining--;
5666 if (startup_ctx->remaining == 0)
5668 startup_ctx->cb (startup_ctx->cb_cls, NULL);
5669 GNUNET_free (startup_ctx->service);
5670 GNUNET_free (startup_ctx);
5675 schedule_service_start(void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
5677 struct PeerServiceStartContext *peer_ctx = cls;
5678 struct ServiceStartContext *startup_ctx = peer_ctx->start_ctx;
5680 if (startup_ctx->outstanding > startup_ctx->pg->max_concurrent_ssh)
5681 GNUNET_SCHEDULER_add_delayed (
5682 GNUNET_TIME_relative_multiply (
5683 GNUNET_TIME_UNIT_MILLISECONDS,
5685 &schedule_service_start, peer_ctx);
5689 GNUNET_TESTING_daemon_start_service (peer_ctx->daemon,
5690 startup_ctx->service,
5691 startup_ctx->timeout,
5692 &service_start_callback, startup_ctx);
5693 GNUNET_free (peer_ctx);
5699 internal_start(void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
5701 struct InternalStartContext *internal_context = cls;
5703 if ( (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN) != 0)
5708 if ((internal_context->peer->pg->starting
5709 < internal_context->peer->pg->max_concurrent_ssh)
5710 || ((internal_context->hostname != NULL)
5711 && (count_outstanding_at_host (internal_context->hostname,
5712 internal_context->peer->pg)
5713 < internal_context->peer->pg->max_concurrent_ssh)))
5715 if (internal_context->hostname != NULL)
5716 increment_outstanding_at_host (internal_context->hostname,
5717 internal_context->peer->pg);
5718 internal_context->peer->pg->starting++;
5719 internal_context->peer->daemon
5720 = GNUNET_TESTING_daemon_start (internal_context->peer->cfg,
5721 internal_context->timeout,
5723 internal_context->hostname,
5724 internal_context->username,
5725 internal_context->sshport,
5726 internal_context->hostkey,
5727 &internal_hostkey_callback,
5729 &internal_startup_callback,
5734 GNUNET_SCHEDULER_add_delayed (
5735 GNUNET_TIME_relative_multiply (
5736 GNUNET_TIME_UNIT_MILLISECONDS,
5738 &internal_start, internal_context);
5741 #if USE_START_HELPER
5743 struct PeerStartHelperContext
5745 struct GNUNET_TESTING_PeerGroup *pg;
5747 struct HostData *host;
5749 struct GNUNET_OS_Process *proc;
5753 check_peers_started (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
5755 struct PeerStartHelperContext *helper = cls;
5756 enum GNUNET_OS_ProcessStatusType type;
5759 GNUNET_TESTING_NotifyDaemonRunning cb;
5761 if (GNUNET_NO == GNUNET_OS_process_status (helper->proc, &type, &code)) /* Still running, wait some more! */
5763 GNUNET_SCHEDULER_add_delayed(GNUNET_CONSTANTS_EXEC_WAIT, &check_peers_started, helper);
5767 helper->pg->starting--;
5768 if (helper->pg->starting == 0) /* All peers have finished starting! */
5770 /* Call the peer started callback for each peer, set proper FSM state (?) */
5771 for (i = 0; i < helper->pg->total; i++)
5773 cb = helper->pg->peers[i].daemon->cb;
5774 helper->pg->peers[i].daemon->cb = NULL;
5775 helper->pg->peers[i].daemon->running = GNUNET_YES;
5776 helper->pg->peers[i].daemon->phase = SP_START_DONE;
5779 if ((type != GNUNET_OS_PROCESS_EXITED) || (code != 0))
5780 cb (helper->pg->peers[i].daemon->cb_cls,
5781 &helper->pg->peers[i].daemon->id,
5782 helper->pg->peers[i].daemon->cfg, helper->pg->peers[i].daemon,
5783 "Failed to execute peerStartHelper.pl, or return code bad!");
5785 cb (helper->pg->peers[i].daemon->cb_cls,
5786 &helper->pg->peers[i].daemon->id,
5787 helper->pg->peers[i].daemon->cfg, helper->pg->peers[i].daemon,
5794 GNUNET_OS_process_close(helper->proc);
5798 start_peer_helper (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
5800 struct PeerStartHelperContext *helper = cls;
5801 char *baseservicehome;
5804 /* ssh user@host peerStartHelper /path/to/basedirectory */
5805 GNUNET_assert(GNUNET_OK == GNUNET_CONFIGURATION_get_value_string (helper->pg->cfg, "PATHS", "SERVICEHOME",
5807 GNUNET_asprintf(&tempdir, "%s/%s/", baseservicehome, helper->host->hostname);
5808 if (NULL != helper->host->username)
5809 GNUNET_asprintf (&arg, "%s@%s", helper->host->username, helper->host->hostname);
5811 GNUNET_asprintf (&arg, "%s", helper->host->hostname);
5813 /* FIXME: Doesn't support ssh_port option! */
5814 helper->proc = GNUNET_OS_start_process (NULL, NULL, "ssh", "ssh", arg,
5815 "peerStartHelper.pl", tempdir, NULL);
5816 GNUNET_assert(helper->proc != NULL);
5817 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "starting peers with cmd ssh %s %s %s\n", arg, "peerStartHelper.pl", tempdir);
5818 GNUNET_SCHEDULER_add_now (&check_peers_started, helper);
5819 GNUNET_free (tempdir);
5820 GNUNET_free (baseservicehome);
5826 * Function which continues a peer group starting up
5827 * after successfully generating hostkeys for each peer.
5829 * @param pg the peer group to continue starting
5833 GNUNET_TESTING_daemons_continue_startup(struct GNUNET_TESTING_PeerGroup *pg)
5837 #if USE_START_HELPER
5838 if ((pg->num_hosts > 0) && (pg->hostkey_data != NULL))
5840 struct PeerStartHelperContext *helper;
5841 pg->starting = pg->num_hosts;
5842 for (i = 0; i < pg->num_hosts; i++)
5844 helper = GNUNET_malloc(sizeof(struct PeerStartHelperContext));
5846 helper->host = &pg->hosts[i];
5847 GNUNET_SCHEDULER_add_now(&start_peer_helper, helper);
5853 for (i = 0; i < pg->total; i++)
5855 GNUNET_SCHEDULER_add_now (&internal_continue_startup,
5856 &pg->peers[i].internal_context);
5861 for (i = 0; i < pg->total; i++)
5863 GNUNET_SCHEDULER_add_now (&internal_continue_startup,
5864 &pg->peers[i].internal_context);
5869 #if USE_START_HELPER
5871 call_hostkey_callbacks (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
5873 struct GNUNET_TESTING_PeerGroup *pg = cls;
5875 for (i = 0; i < pg->total; i++)
5877 if (pg->peers[i].internal_context.hostkey_callback != NULL)
5878 pg->peers[i].internal_context.hostkey_callback (pg->peers[i].internal_context.hostkey_cls,
5879 &pg->peers[i].daemon->id,
5880 pg->peers[i].daemon,
5884 if (pg->peers[0].internal_context.hostkey_callback == NULL)
5885 GNUNET_TESTING_daemons_continue_startup (pg);
5890 * Start count gnunet instances with the same set of transports and
5891 * applications. The port numbers (any option called "PORT") will be
5892 * adjusted to ensure that no two peers running on the same system
5893 * have the same port(s) in their respective configurations.
5895 * @param cfg configuration template to use
5896 * @param total number of daemons to start
5897 * @param max_concurrent_connections for testing, how many peers can
5898 * we connect to simultaneously
5899 * @param max_concurrent_ssh when starting with ssh, how many ssh
5900 * connections will we allow at once (based on remote hosts allowed!)
5901 * @param timeout total time allowed for peers to start
5902 * @param hostkey_callback function to call on each peers hostkey generation
5903 * if NULL, peers will be started by this call, if non-null,
5904 * GNUNET_TESTING_daemons_continue_startup must be called after
5905 * successful hostkey generation
5906 * @param hostkey_cls closure for hostkey callback
5907 * @param cb function to call on each daemon that was started
5908 * @param cb_cls closure for cb
5909 * @param connect_callback function to call each time two hosts are connected
5910 * @param connect_callback_cls closure for connect_callback
5911 * @param hostnames linked list of host structs to use to start peers on
5912 * (NULL to run on localhost only)
5914 * @return NULL on error, otherwise handle to control peer group
5916 struct GNUNET_TESTING_PeerGroup *
5917 GNUNET_TESTING_daemons_start(const struct GNUNET_CONFIGURATION_Handle *cfg,
5919 unsigned int max_concurrent_connections,
5920 unsigned int max_concurrent_ssh,
5921 struct GNUNET_TIME_Relative timeout,
5922 GNUNET_TESTING_NotifyHostkeyCreated hostkey_callback,
5924 GNUNET_TESTING_NotifyDaemonRunning cb,
5926 GNUNET_TESTING_NotifyConnection connect_callback,
5927 void *connect_callback_cls,
5928 const struct GNUNET_TESTING_Host *hostnames)
5930 struct GNUNET_TESTING_PeerGroup *pg;
5931 const struct GNUNET_TESTING_Host *hostpos;
5932 const char *hostname;
5933 const char *username;
5934 char *baseservicehome;
5935 char *newservicehome;
5937 char *hostkeys_file;
5940 struct GNUNET_DISK_FileHandle *fd;
5941 struct GNUNET_CONFIGURATION_Handle *pcfg;
5943 struct OutstandingSSH *ssh_entry;
5944 unsigned int hostcnt;
5951 uint64_t total_hostkeys;
5952 struct GNUNET_OS_Process *proc;
5963 pg = GNUNET_malloc (sizeof (struct GNUNET_TESTING_PeerGroup));
5965 pg->notify_connection = connect_callback;
5966 pg->notify_connection_cls = connect_callback_cls;
5968 pg->max_timeout = GNUNET_TIME_relative_to_absolute (timeout);
5969 pg->peers = GNUNET_malloc (total * sizeof (struct PeerData));
5970 pg->max_outstanding_connections = max_concurrent_connections;
5971 pg->max_concurrent_ssh = max_concurrent_ssh;
5972 if (NULL != hostnames)
5975 hostpos = hostnames;
5976 while (hostpos != NULL)
5978 hostpos = hostpos->next;
5981 pg->hosts = GNUNET_malloc (off * sizeof (struct HostData));
5984 hostpos = hostnames;
5985 while (hostpos != NULL)
5987 pg->hosts[off].minport = LOW_PORT;
5988 pg->hosts[off].hostname = GNUNET_strdup (hostpos->hostname);
5989 if (hostpos->username != NULL)
5990 pg->hosts[off].username = GNUNET_strdup (hostpos->username);
5991 pg->hosts[off].sshport = hostpos->port;
5992 hostpos = hostpos->next;
6002 pg->num_hosts = off;
6010 /* Create the servicehome directory for each remote peer */
6011 GNUNET_assert(GNUNET_OK ==
6012 GNUNET_CONFIGURATION_get_value_string (cfg, "PATHS", "SERVICEHOME",
6014 for (i = 0; i < pg->num_hosts; i++)
6016 ssh_entry = GNUNET_malloc(sizeof(struct OutstandingSSH));
6017 ssh_entry->hostname = pg->hosts[i].hostname; /* Don't free! */
6018 GNUNET_CONTAINER_DLL_insert(pg->ssh_head, pg->ssh_tail, ssh_entry);
6019 GNUNET_asprintf(&tmpdir, "%s/%s", baseservicehome, pg->hosts[i].hostname);
6020 if (NULL != pg->hosts[i].username)
6021 GNUNET_asprintf (&arg, "%s@%s", pg->hosts[i].username,
6022 pg->hosts[i].hostname);
6024 GNUNET_asprintf (&arg, "%s", pg->hosts[i].hostname);
6025 if (pg->hosts[i].sshport != 0)
6027 GNUNET_asprintf (&ssh_port_str, "%d", pg->hosts[i].sshport);
6028 proc = GNUNET_OS_start_process (NULL, NULL, "ssh", "ssh", "-P",
6033 arg, "mkdir -p", tmpdir,
6037 proc = GNUNET_OS_start_process (NULL, NULL, "ssh", "ssh", arg,
6038 "mkdir -p", tmpdir, NULL);
6039 GNUNET_assert(proc != NULL);
6040 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
6041 "Creating remote dir with command ssh %s %s %s\n", arg,
6042 " mkdir -p ", tmpdir);
6043 GNUNET_free(tmpdir);
6045 GNUNET_OS_process_wait (proc);
6046 GNUNET_OS_process_close(proc);
6048 GNUNET_free(baseservicehome);
6049 baseservicehome = NULL;
6051 if (GNUNET_YES == GNUNET_CONFIGURATION_get_value_string (cfg, "TESTING",
6055 if (GNUNET_YES != GNUNET_DISK_file_test (hostkeys_file))
6056 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
6057 _("Could not read hostkeys file!\n"));
6060 /* Check hostkey file size, read entire thing into memory */
6061 fd = GNUNET_DISK_file_open (hostkeys_file,
6062 GNUNET_DISK_OPEN_READ,
6063 GNUNET_DISK_PERM_NONE);
6066 GNUNET_log_strerror_file (GNUNET_ERROR_TYPE_ERROR,
6069 GNUNET_free (hostkeys_file);
6070 for (i=0;i<pg->num_hosts;i++)
6072 GNUNET_free (pg->hosts[i].hostname);
6073 GNUNET_free_non_null (pg->hosts[i].username);
6075 GNUNET_free (pg->peers);
6076 GNUNET_free (pg->hosts);
6081 if (GNUNET_YES != GNUNET_DISK_file_size (hostkeys_file, &fs,
6085 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
6086 "Found file size %llu for hostkeys, expect hostkeys to be size %d\n",
6087 fs, HOSTKEYFILESIZE);
6089 if (0 != (fs % HOSTKEYFILESIZE))
6091 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
6092 "File size %llu seems incorrect for hostkeys...\n",
6097 total_hostkeys = fs / HOSTKEYFILESIZE;
6098 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
6099 "Will read %llu hostkeys from file\n",
6101 pg->hostkey_data = GNUNET_malloc_large (fs);
6102 GNUNET_assert (fs == GNUNET_DISK_file_read (fd, pg->hostkey_data, fs));
6104 GNUNET_assert(GNUNET_OK == GNUNET_DISK_file_close(fd));
6106 GNUNET_free(hostkeys_file);
6109 for (off = 0; off < total; off++)
6113 hostname = pg->hosts[off % hostcnt].hostname;
6114 username = pg->hosts[off % hostcnt].username;
6115 sshport = pg->hosts[off % hostcnt].sshport;
6116 pcfg = make_config (cfg, off, &pg->hosts[off % hostcnt].minport,
6117 &upnum, hostname, &fdnum);
6124 pcfg = make_config (cfg, off, &minport, &upnum, hostname, &fdnum);
6129 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
6130 _("Could not create configuration for peer number %u on `%s'!\n"),
6132 hostname == NULL ? "localhost" : hostname);
6137 == GNUNET_CONFIGURATION_get_value_string (pcfg, "PATHS",
6141 if (hostname != NULL)
6142 GNUNET_asprintf (&newservicehome, "%s/%s/%d/", baseservicehome, hostname, off);
6144 GNUNET_asprintf (&newservicehome, "%s/%d/", baseservicehome, off);
6145 GNUNET_free (baseservicehome);
6146 baseservicehome = NULL;
6150 tmpdir = getenv ("TMPDIR");
6151 tmpdir = tmpdir ? tmpdir : "/tmp";
6152 if (hostname != NULL)
6153 GNUNET_asprintf (&newservicehome, "%s/%s/%s/%d/", tmpdir, hostname,
6154 "gnunet-testing-test-test", off);
6156 GNUNET_asprintf (&newservicehome, "%s/%s/%d/", tmpdir,
6157 "gnunet-testing-test-test", off);
6159 GNUNET_CONFIGURATION_set_value_string (pcfg, "PATHS", "SERVICEHOME",
6161 GNUNET_free (newservicehome);
6162 pg->peers[off].cfg = pcfg;
6163 pg->peers[off].pg = pg;
6164 pg->peers[off].internal_context.peer = &pg->peers[off];
6165 pg->peers[off].internal_context.timeout = timeout;
6166 pg->peers[off].internal_context.hostname = hostname;
6167 pg->peers[off].internal_context.username = username;
6168 pg->peers[off].internal_context.sshport = sshport;
6169 if (pg->hostkey_data != NULL)
6170 pg->peers[off].internal_context.hostkey = &pg->hostkey_data[off
6172 pg->peers[off].internal_context.hostkey_callback = hostkey_callback;
6173 pg->peers[off].internal_context.hostkey_cls = hostkey_cls;
6174 pg->peers[off].internal_context.start_cb = cb;
6175 pg->peers[off].internal_context.start_cb_cls = cb_cls;
6176 #if !USE_START_HELPER
6177 GNUNET_SCHEDULER_add_now (&internal_start,
6178 &pg->peers[off].internal_context);
6180 if ((pg->hostkey_data != NULL) && (hostcnt > 0))
6182 pg->peers[off].daemon
6183 = GNUNET_TESTING_daemon_start (pcfg,
6189 pg->peers[off].internal_context.hostkey,
6190 &internal_hostkey_callback,
6191 &pg->peers[off].internal_context,
6192 &internal_startup_callback,
6193 &pg->peers[off].internal_context);
6195 * At this point, given that we had a hostkeyfile,
6196 * we can call the hostkey callback!
6197 * But first, we should copy (rsync) all of the configs
6198 * and hostkeys to the remote peers. Then let topology
6199 * creation happen, then call the peer start helper processes,
6200 * then set pg->whatever_phase for each peer and let them
6201 * enter the fsm to get the HELLO's for peers and start connecting.
6206 GNUNET_SCHEDULER_add_now (&internal_start,
6207 &pg->peers[off].internal_context);
6213 #if USE_START_HELPER /* Now the peergroup has been set up, hostkeys and configs written to files. */
6214 if ((pg->hostkey_data != NULL) && (hostcnt > 0))
6216 for (off = 0; off < hostcnt; off++)
6221 hostname = pg->hosts[off % hostcnt].hostname;
6222 username = pg->hosts[off % hostcnt].username;
6223 sshport = pg->hosts[off % hostcnt].sshport;
6233 == GNUNET_CONFIGURATION_get_value_string (cfg, "PATHS",
6237 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "baseservice home is %s\n", baseservicehome);
6238 if (hostname != NULL)
6239 GNUNET_asprintf (&newservicehome, "%s/%s/", baseservicehome, hostname);
6241 GNUNET_asprintf (&newservicehome, "%s/", baseservicehome);
6242 GNUNET_free (baseservicehome);
6243 baseservicehome = NULL;
6247 tmpdir = getenv ("TMPDIR");
6248 tmpdir = tmpdir ? tmpdir : "/tmp";
6249 if (hostname != NULL)
6250 GNUNET_asprintf (&newservicehome, "%s/%s/%s/", tmpdir, hostname,
6251 "gnunet-testing-test-test");
6253 GNUNET_asprintf (&newservicehome, "%s/%s/", tmpdir,
6254 "gnunet-testing-test-test", off);
6257 if (NULL != username)
6258 GNUNET_asprintf (&arg,
6261 pg->hosts[off].hostname,
6264 GNUNET_asprintf (&arg,
6266 pg->hosts[off].hostname,
6269 /* FIXME: Doesn't support ssh_port option! */
6270 proc = GNUNET_OS_start_process (NULL, NULL,
6272 "rsync", "-r", newservicehome, arg, NULL);
6274 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
6275 "copying directory with command rsync -r %s %s\n",
6276 newservicehome, arg);
6277 GNUNET_free(newservicehome);
6281 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
6282 _("Could not start `%s' process to copy configuration directory.\n"),
6286 GNUNET_OS_process_wait (proc);
6287 GNUNET_OS_process_close (proc);
6289 /* Now all the configuration files and hostkeys are copied to the remote host. Call the hostkey callback for each peer! */
6290 GNUNET_SCHEDULER_add_now (&call_hostkey_callbacks, pg);
6297 * Get a daemon by number, so callers don't have to do nasty
6298 * offsetting operation.
6300 struct GNUNET_TESTING_Daemon *
6301 GNUNET_TESTING_daemon_get(struct GNUNET_TESTING_PeerGroup *pg,
6302 unsigned int position)
6304 if (position < pg->total)
6305 return pg->peers[position].daemon;
6310 * Get a daemon by peer identity, so callers can
6311 * retrieve the daemon without knowing it's offset.
6313 * @param pg the peer group to retrieve the daemon from
6314 * @param peer_id the peer identity of the daemon to retrieve
6316 * @return the daemon on success, or NULL if no such peer identity is found
6318 struct GNUNET_TESTING_Daemon *
6319 GNUNET_TESTING_daemon_get_by_id(struct GNUNET_TESTING_PeerGroup *pg,
6320 struct GNUNET_PeerIdentity *peer_id)
6324 for (i = 0; i < pg->total; i++)
6326 if (0 == memcmp (&pg->peers[i].daemon->id, peer_id,
6327 sizeof(struct GNUNET_PeerIdentity)))
6328 return pg->peers[i].daemon;
6334 * Prototype of a function that will be called when a
6335 * particular operation was completed the testing library.
6337 * @param cls closure (a struct RestartContext)
6338 * @param id id of the peer that was restarted
6339 * @param cfg handle to the configuration of the peer
6340 * @param d handle to the daemon that was restarted
6341 * @param emsg NULL on success
6344 restart_callback(void *cls, const struct GNUNET_PeerIdentity *id,
6345 const struct GNUNET_CONFIGURATION_Handle *cfg,
6346 struct GNUNET_TESTING_Daemon *d, const char *emsg)
6348 struct RestartContext *restart_context = cls;
6352 restart_context->peers_restarted++;
6356 restart_context->peers_restart_failed++;
6359 if (restart_context->peers_restarted == restart_context->peer_group->total)
6361 restart_context->callback (restart_context->callback_cls, NULL);
6362 GNUNET_free (restart_context);
6364 else if (restart_context->peers_restart_failed
6365 + restart_context->peers_restarted == restart_context->peer_group->total)
6367 restart_context->callback (restart_context->callback_cls,
6368 "Failed to restart peers!");
6369 GNUNET_free (restart_context);
6375 * Callback for informing us about a successful
6376 * or unsuccessful churn stop call.
6378 * @param cls a ChurnContext
6379 * @param emsg NULL on success, non-NULL on failure
6383 churn_stop_callback(void *cls, const char *emsg)
6385 struct ShutdownContext *shutdown_ctx = cls;
6386 struct ChurnContext *churn_ctx = shutdown_ctx->cb_cls;
6387 unsigned int total_left;
6388 char *error_message;
6390 error_message = NULL;
6391 shutdown_ctx->outstanding--;
6395 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
6396 "Churn stop callback failed with error `%s'\n", emsg);
6397 churn_ctx->num_failed_stop++;
6401 churn_ctx->num_to_stop--;
6404 total_left = (churn_ctx->num_to_stop - churn_ctx->num_failed_stop)
6405 + (churn_ctx->num_to_start - churn_ctx->num_failed_start);
6407 if (total_left == 0)
6409 if ((churn_ctx->num_failed_stop > 0) || (churn_ctx->num_failed_start > 0))
6413 "Churn didn't complete successfully, %u peers failed to start %u peers failed to be stopped!",
6414 churn_ctx->num_failed_start,
6415 churn_ctx->num_failed_stop);
6417 churn_ctx->cb (churn_ctx->cb_cls, error_message);
6418 GNUNET_free_non_null (error_message);
6419 GNUNET_free (churn_ctx);
6420 GNUNET_free (shutdown_ctx);
6425 * Count the number of running peers.
6427 * @param pg handle for the peer group
6429 * @return the number of currently running peers in the peer group
6432 GNUNET_TESTING_daemons_running(struct GNUNET_TESTING_PeerGroup *pg)
6435 unsigned int running = 0;
6436 for (i = 0; i < pg->total; i++)
6438 if (pg->peers[i].daemon->running == GNUNET_YES)
6440 GNUNET_assert (running != -1);
6448 * Task to rate limit the number of outstanding peer shutdown
6449 * requests. This is necessary for making sure we don't do
6450 * too many ssh connections at once, but is generally nicer
6451 * to any system as well (graduated task starts, as opposed
6452 * to calling gnunet-arm N times all at once).
6455 schedule_churn_shutdown_task(void *cls,
6456 const struct GNUNET_SCHEDULER_TaskContext *tc)
6458 struct PeerShutdownContext *peer_shutdown_ctx = cls;
6459 struct ShutdownContext *shutdown_ctx;
6460 struct ChurnContext *churn_ctx;
6461 GNUNET_assert (peer_shutdown_ctx != NULL);
6462 shutdown_ctx = peer_shutdown_ctx->shutdown_ctx;
6463 GNUNET_assert (shutdown_ctx != NULL);
6464 churn_ctx = (struct ChurnContext *) shutdown_ctx->cb_cls;
6465 if (shutdown_ctx->outstanding > churn_ctx->pg->max_concurrent_ssh)
6466 GNUNET_SCHEDULER_add_delayed (
6467 GNUNET_TIME_relative_multiply (
6468 GNUNET_TIME_UNIT_MILLISECONDS,
6470 &schedule_churn_shutdown_task,
6474 shutdown_ctx->outstanding++;
6475 if (churn_ctx->service != NULL)
6476 GNUNET_TESTING_daemon_stop_service (peer_shutdown_ctx->daemon,
6478 shutdown_ctx->timeout, shutdown_ctx->cb,
6481 GNUNET_TESTING_daemon_stop (peer_shutdown_ctx->daemon,
6482 shutdown_ctx->timeout, shutdown_ctx->cb,
6483 shutdown_ctx, GNUNET_NO, GNUNET_YES);
6484 GNUNET_free (peer_shutdown_ctx);
6490 * Simulate churn by stopping some peers (and possibly
6491 * re-starting others if churn is called multiple times). This
6492 * function can only be used to create leave-join churn (peers "never"
6493 * leave for good). First "voff" random peers that are currently
6494 * online will be taken offline; then "von" random peers that are then
6495 * offline will be put back online. No notifications will be
6496 * generated for any of these operations except for the callback upon
6499 * @param pg handle for the peer group
6500 * @param service the service to churn off/on, NULL to churn peer
6501 * @param voff number of peers that should go offline
6502 * @param von number of peers that should come back online;
6503 * must be zero on first call (since "testbed_start"
6504 * always starts all of the peers)
6505 * @param timeout how long to wait for operations to finish before
6507 * @param cb function to call at the end
6508 * @param cb_cls closure for cb
6511 GNUNET_TESTING_daemons_churn(struct GNUNET_TESTING_PeerGroup *pg,
6513 unsigned int voff, unsigned int von,
6514 struct GNUNET_TIME_Relative timeout,
6515 GNUNET_TESTING_NotifyCompletion cb, void *cb_cls)
6517 struct ChurnContext *churn_ctx;
6518 struct ShutdownContext *shutdown_ctx;
6519 struct PeerShutdownContext *peer_shutdown_ctx;
6520 struct PeerRestartContext *peer_restart_ctx;
6521 struct ChurnRestartContext *churn_startup_ctx;
6523 unsigned int running;
6524 unsigned int stopped;
6525 unsigned int total_running;
6526 unsigned int total_stopped;
6528 unsigned int *running_arr;
6529 unsigned int *stopped_arr;
6530 unsigned int *running_permute;
6531 unsigned int *stopped_permute;
6534 shutdown_ctx = NULL;
6535 peer_shutdown_ctx = NULL;
6536 peer_restart_ctx = NULL;
6537 churn_startup_ctx = NULL;
6542 if ((von == 0) && (voff == 0)) /* No peers at all? */
6548 for (i = 0; i < pg->total; i++)
6550 if (service == NULL)
6552 if (pg->peers[i].daemon->running == GNUNET_YES)
6554 GNUNET_assert (running != -1);
6559 GNUNET_assert (stopped != -1);
6565 /* FIXME: make churned services a list! */
6566 pos = pg->peers[i].daemon->churned_services;
6567 /* FIXME: while (pos != NULL) */
6571 if (0 == strcasecmp(pos, service))
6577 GNUNET_assert (stopped != -1);
6579 /* FIXME: pos = pos->next; */
6583 GNUNET_assert (running != -1);
6591 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
6592 "Trying to stop more peers (%d) than are currently running (%d)!\n", voff, running);
6593 cb (cb_cls, "Trying to stop more peers than are currently running!");
6599 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
6600 "Trying to start more peers (%d) than are currently stopped (%d)!\n", von, stopped);
6601 cb (cb_cls, "Trying to start more peers than are currently stopped!");
6605 churn_ctx = GNUNET_malloc (sizeof (struct ChurnContext));
6607 if (service != NULL)
6608 churn_ctx->service = GNUNET_strdup(service);
6611 running_arr = GNUNET_malloc (running * sizeof (unsigned int));
6615 stopped_arr = GNUNET_malloc (stopped * sizeof (unsigned int));
6617 running_permute = NULL;
6618 stopped_permute = NULL;
6621 running_permute = GNUNET_CRYPTO_random_permute (GNUNET_CRYPTO_QUALITY_WEAK,
6624 stopped_permute = GNUNET_CRYPTO_random_permute (GNUNET_CRYPTO_QUALITY_WEAK,
6627 total_running = running;
6628 total_stopped = stopped;
6632 churn_ctx->num_to_start = von;
6633 churn_ctx->num_to_stop = voff;
6635 churn_ctx->cb_cls = cb_cls;
6638 for (i = 0; i < pg->total; i++)
6640 if (service == NULL)
6642 if (pg->peers[i].daemon->running == GNUNET_YES)
6644 GNUNET_assert ((running_arr != NULL) && (total_running > running));
6645 running_arr[running] = i;
6650 GNUNET_assert ((stopped_arr != NULL) && (total_stopped > stopped));
6651 stopped_arr[stopped] = i;
6657 /* FIXME: make churned services a list! */
6658 pos = pg->peers[i].daemon->churned_services;
6659 /* FIXME: while (pos != NULL) */
6662 GNUNET_assert ((stopped_arr != NULL) && (total_stopped > stopped));
6663 stopped_arr[stopped] = i;
6665 /* FIXME: pos = pos->next; */
6669 GNUNET_assert ((running_arr != NULL) && (total_running > running));
6670 running_arr[running] = i;
6676 GNUNET_assert (running >= voff);
6679 shutdown_ctx = GNUNET_malloc (sizeof (struct ShutdownContext));
6680 shutdown_ctx->cb = &churn_stop_callback;
6681 shutdown_ctx->cb_cls = churn_ctx;
6682 shutdown_ctx->total_peers = voff;
6683 shutdown_ctx->timeout = timeout;
6686 for (i = 0; i < voff; i++)
6689 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Stopping peer %d!\n", running_arr[running_permute[i]]);
6691 GNUNET_assert (running_arr != NULL);
6692 peer_shutdown_ctx = GNUNET_malloc (sizeof (struct PeerShutdownContext));
6693 peer_shutdown_ctx->daemon
6694 = pg->peers[running_arr[running_permute[i]]].daemon;
6695 peer_shutdown_ctx->shutdown_ctx = shutdown_ctx;
6696 GNUNET_SCHEDULER_add_now (&schedule_churn_shutdown_task,
6700 GNUNET_assert (stopped >= von);
6703 churn_startup_ctx = GNUNET_malloc (sizeof (struct ChurnRestartContext));
6704 churn_startup_ctx->churn_ctx = churn_ctx;
6705 churn_startup_ctx->timeout = timeout;
6706 churn_startup_ctx->pg = pg;
6708 for (i = 0; i < von; i++)
6711 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Starting up peer %d!\n", stopped_arr[stopped_permute[i]]);
6713 GNUNET_assert (stopped_arr != NULL);
6714 peer_restart_ctx = GNUNET_malloc (sizeof (struct PeerRestartContext));
6715 peer_restart_ctx->churn_restart_ctx = churn_startup_ctx;
6716 peer_restart_ctx->daemon
6717 = pg->peers[stopped_arr[stopped_permute[i]]].daemon;
6718 GNUNET_SCHEDULER_add_now (&schedule_churn_restart, peer_restart_ctx);
6721 GNUNET_free_non_null (running_arr);
6722 GNUNET_free_non_null (stopped_arr);
6723 GNUNET_free_non_null (running_permute);
6724 GNUNET_free_non_null (stopped_permute);
6728 * Start a given service for each of the peers in the peer group.
6730 * @param pg handle for the peer group
6731 * @param service the service to start
6732 * @param timeout how long to wait for operations to finish before
6734 * @param cb function to call once finished
6735 * @param cb_cls closure for cb
6739 GNUNET_TESTING_daemons_start_service (struct GNUNET_TESTING_PeerGroup *pg,
6741 struct GNUNET_TIME_Relative timeout,
6742 GNUNET_TESTING_NotifyCompletion cb,
6745 struct ServiceStartContext *start_ctx;
6746 struct PeerServiceStartContext *peer_start_ctx;
6749 GNUNET_assert(service != NULL);
6751 start_ctx = GNUNET_malloc(sizeof(struct ServiceStartContext));
6753 start_ctx->remaining = pg->total;
6755 start_ctx->cb_cls = cb_cls;
6756 start_ctx->service = GNUNET_strdup(service);
6757 start_ctx->timeout = timeout;
6759 for (i = 0; i < pg->total; i++)
6762 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Starting up service %s on peer %d!\n", service, stopped_arr[stopped_permute[i]]);
6764 peer_start_ctx = GNUNET_malloc (sizeof (struct PeerServiceStartContext));
6765 peer_start_ctx->start_ctx = start_ctx;
6766 peer_start_ctx->daemon = pg->peers[i].daemon;
6767 GNUNET_SCHEDULER_add_now (&schedule_service_start, peer_start_ctx);
6772 * Restart all peers in the given group.
6774 * @param pg the handle to the peer group
6775 * @param callback function to call on completion (or failure)
6776 * @param callback_cls closure for the callback function
6779 GNUNET_TESTING_daemons_restart(struct GNUNET_TESTING_PeerGroup *pg,
6780 GNUNET_TESTING_NotifyCompletion callback,
6783 struct RestartContext *restart_context;
6788 restart_context = GNUNET_malloc (sizeof (struct RestartContext));
6789 restart_context->peer_group = pg;
6790 restart_context->peers_restarted = 0;
6791 restart_context->callback = callback;
6792 restart_context->callback_cls = callback_cls;
6794 for (off = 0; off < pg->total; off++)
6796 GNUNET_TESTING_daemon_restart (pg->peers[off].daemon,
6797 &restart_callback, restart_context);
6804 * Start or stop an individual peer from the given group.
6806 * @param pg handle to the peer group
6807 * @param offset which peer to start or stop
6808 * @param desired_status GNUNET_YES to have it running, GNUNET_NO to stop it
6809 * @param timeout how long to wait for shutdown
6810 * @param cb function to call at the end
6811 * @param cb_cls closure for cb
6814 GNUNET_TESTING_daemons_vary(struct GNUNET_TESTING_PeerGroup *pg,
6815 unsigned int offset, int desired_status,
6816 struct GNUNET_TIME_Relative timeout,
6817 GNUNET_TESTING_NotifyCompletion cb, void *cb_cls)
6819 struct ShutdownContext *shutdown_ctx;
6820 struct ChurnRestartContext *startup_ctx;
6821 struct ChurnContext *churn_ctx;
6823 if (GNUNET_NO == desired_status)
6825 if (NULL != pg->peers[offset].daemon)
6827 shutdown_ctx = GNUNET_malloc (sizeof (struct ShutdownContext));
6828 churn_ctx = GNUNET_malloc (sizeof (struct ChurnContext));
6829 churn_ctx->num_to_start = 0;
6830 churn_ctx->num_to_stop = 1;
6832 churn_ctx->cb_cls = cb_cls;
6833 shutdown_ctx->cb_cls = churn_ctx;
6834 GNUNET_TESTING_daemon_stop (pg->peers[offset].daemon, timeout,
6835 &churn_stop_callback, shutdown_ctx,
6836 GNUNET_NO, GNUNET_YES);
6839 else if (GNUNET_YES == desired_status)
6841 if (NULL == pg->peers[offset].daemon)
6843 startup_ctx = GNUNET_malloc (sizeof (struct ChurnRestartContext));
6844 churn_ctx = GNUNET_malloc (sizeof (struct ChurnContext));
6845 churn_ctx->num_to_start = 1;
6846 churn_ctx->num_to_stop = 0;
6848 churn_ctx->cb_cls = cb_cls;
6849 startup_ctx->churn_ctx = churn_ctx;
6850 GNUNET_TESTING_daemon_start_stopped (pg->peers[offset].daemon,
6851 timeout, &churn_start_callback,
6861 * Callback for shutting down peers in a peer group.
6863 * @param cls closure (struct ShutdownContext)
6864 * @param emsg NULL on success
6867 internal_shutdown_callback(void *cls, const char *emsg)
6869 struct PeerShutdownContext *peer_shutdown_ctx = cls;
6870 struct ShutdownContext *shutdown_ctx = peer_shutdown_ctx->shutdown_ctx;
6872 struct OutstandingSSH *ssh_pos;
6874 shutdown_ctx->outstanding--;
6875 if (peer_shutdown_ctx->daemon->hostname != NULL)
6876 decrement_outstanding_at_host (peer_shutdown_ctx->daemon->hostname,
6881 shutdown_ctx->peers_down++;
6885 shutdown_ctx->peers_failed++;
6888 if ((shutdown_ctx->cb != NULL) && (shutdown_ctx->peers_down
6889 + shutdown_ctx->peers_failed == shutdown_ctx->total_peers))
6891 if (shutdown_ctx->peers_failed > 0)
6892 shutdown_ctx->cb (shutdown_ctx->cb_cls,
6893 "Not all peers successfully shut down!");
6895 shutdown_ctx->cb (shutdown_ctx->cb_cls, NULL);
6897 GNUNET_free (shutdown_ctx->pg->peers);
6898 GNUNET_free_non_null(shutdown_ctx->pg->hostkey_data);
6899 for (off = 0; off < shutdown_ctx->pg->num_hosts; off++)
6901 GNUNET_free (shutdown_ctx->pg->hosts[off].hostname);
6902 GNUNET_free_non_null (shutdown_ctx->pg->hosts[off].username);
6904 GNUNET_free_non_null (shutdown_ctx->pg->hosts);
6905 while (NULL != (ssh_pos = shutdown_ctx->pg->ssh_head))
6907 GNUNET_CONTAINER_DLL_remove(shutdown_ctx->pg->ssh_head, shutdown_ctx->pg->ssh_tail, ssh_pos);
6908 GNUNET_free(ssh_pos);
6910 GNUNET_free (shutdown_ctx->pg);
6911 GNUNET_free (shutdown_ctx);
6913 GNUNET_free(peer_shutdown_ctx);
6918 * Task to rate limit the number of outstanding peer shutdown
6919 * requests. This is necessary for making sure we don't do
6920 * too many ssh connections at once, but is generally nicer
6921 * to any system as well (graduated task starts, as opposed
6922 * to calling gnunet-arm N times all at once).
6925 schedule_shutdown_task(void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
6927 struct PeerShutdownContext *peer_shutdown_ctx = cls;
6928 struct ShutdownContext *shutdown_ctx;
6930 GNUNET_assert (peer_shutdown_ctx != NULL);
6931 shutdown_ctx = peer_shutdown_ctx->shutdown_ctx;
6932 GNUNET_assert (shutdown_ctx != NULL);
6934 if ((shutdown_ctx->outstanding < shutdown_ctx->pg->max_concurrent_ssh)
6935 || ((peer_shutdown_ctx->daemon->hostname != NULL)
6936 && (count_outstanding_at_host (peer_shutdown_ctx->daemon->hostname,
6938 < shutdown_ctx->pg->max_concurrent_ssh)))
6940 if (peer_shutdown_ctx->daemon->hostname != NULL)
6941 increment_outstanding_at_host (peer_shutdown_ctx->daemon->hostname,
6943 shutdown_ctx->outstanding++;
6944 GNUNET_TESTING_daemon_stop (peer_shutdown_ctx->daemon,
6945 shutdown_ctx->timeout,
6946 &internal_shutdown_callback, peer_shutdown_ctx,
6947 shutdown_ctx->delete_files, GNUNET_NO);
6950 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_MILLISECONDS,
6952 &schedule_shutdown_task, peer_shutdown_ctx);
6957 * Read a testing hosts file based on a configuration.
6958 * Returns a DLL of hosts (caller must free!) on success
6959 * or NULL on failure.
6961 * @param cfg a configuration with a testing section
6963 * @return DLL of hosts on success, NULL on failure
6965 struct GNUNET_TESTING_Host *
6966 GNUNET_TESTING_hosts_load (const struct GNUNET_CONFIGURATION_Handle *cfg)
6968 struct GNUNET_TESTING_Host *hosts;
6969 struct GNUNET_TESTING_Host *temphost;
6977 /* Check for a hostfile containing user@host:port triples */
6979 != GNUNET_CONFIGURATION_get_value_string (cfg, "testing", "hostfile",
6986 if (hostfile != NULL)
6988 if (GNUNET_OK != GNUNET_DISK_file_test (hostfile))
6989 GNUNET_DISK_fn_write (hostfile, NULL, 0, GNUNET_DISK_PERM_USER_READ
6990 | GNUNET_DISK_PERM_USER_WRITE);
6991 if ((0 != STAT (hostfile, &frstat)) || (frstat.st_size == 0))
6993 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
6994 "Could not open file specified for host list, ending test!");
6995 GNUNET_free(hostfile);
6999 data = GNUNET_malloc_large (frstat.st_size);
7000 GNUNET_assert(data != NULL);
7002 != GNUNET_DISK_fn_read (hostfile, data, frstat.st_size))
7005 GNUNET_ERROR_TYPE_ERROR,
7006 "Could not read file %s specified for host list, ending test!",
7008 GNUNET_free (hostfile);
7013 GNUNET_free_non_null(hostfile);
7017 while (count < frstat.st_size - 1)
7020 if (((data[count] == '\n')) && (buf != &data[count]))
7023 temphost = GNUNET_malloc(sizeof(struct GNUNET_TESTING_Host));
7024 ret = sscanf (buf, "%a[a-zA-Z0-9_]@%a[a-zA-Z0-9.]:%hd",
7025 &temphost->username, &temphost->hostname,
7030 GNUNET_ERROR_TYPE_DEBUG,
7031 "Successfully read host %s, port %d and user %s from file\n",
7032 temphost->hostname, temphost->port,
7033 temphost->username);
7037 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
7038 "Error reading line `%s' in hostfile\n", buf);
7039 GNUNET_free(temphost);
7040 buf = &data[count + 1];
7043 temphost->next = hosts;
7045 buf = &data[count + 1];
7047 else if ((data[count] == '\n') || (data[count] == '\0'))
7048 buf = &data[count + 1];
7051 GNUNET_free_non_null(data);
7057 * Shutdown all peers started in the given group.
7059 * @param pg handle to the peer group
7060 * @param timeout how long to wait for shutdown
7061 * @param cb callback to notify upon success or failure
7062 * @param cb_cls closure for cb
7065 GNUNET_TESTING_daemons_stop(struct GNUNET_TESTING_PeerGroup *pg,
7066 struct GNUNET_TIME_Relative timeout,
7067 GNUNET_TESTING_NotifyCompletion cb, void *cb_cls)
7070 struct ShutdownContext *shutdown_ctx;
7071 struct PeerShutdownContext *peer_shutdown_ctx;
7073 struct PeerConnection *conn_iter;
7074 struct PeerConnection *temp_conn;
7077 GNUNET_assert (pg->total > 0);
7079 shutdown_ctx = GNUNET_malloc (sizeof (struct ShutdownContext));
7080 shutdown_ctx->delete_files = GNUNET_CONFIGURATION_get_value_yesno (pg->cfg,
7083 shutdown_ctx->cb = cb;
7084 shutdown_ctx->cb_cls = cb_cls;
7085 shutdown_ctx->total_peers = pg->total;
7086 shutdown_ctx->timeout = timeout;
7087 shutdown_ctx->pg = pg;
7088 /* shtudown_ctx->outstanding = 0; */
7090 for (off = 0; off < pg->total; off++)
7092 GNUNET_assert (NULL != pg->peers[off].daemon);
7093 peer_shutdown_ctx = GNUNET_malloc (sizeof (struct PeerShutdownContext));
7094 peer_shutdown_ctx->daemon = pg->peers[off].daemon;
7095 peer_shutdown_ctx->shutdown_ctx = shutdown_ctx;
7096 GNUNET_SCHEDULER_add_now (&schedule_shutdown_task, peer_shutdown_ctx);
7098 if (NULL != pg->peers[off].cfg)
7100 GNUNET_CONFIGURATION_destroy (pg->peers[off].cfg);
7101 pg->peers[off].cfg = NULL;
7104 conn_iter = pg->peers[off].allowed_peers_head;
7105 while (conn_iter != NULL)
7107 temp_conn = conn_iter->next;
7108 GNUNET_free(conn_iter);
7109 conn_iter = temp_conn;
7112 conn_iter = pg->peers[off].connect_peers_head;
7113 while (conn_iter != NULL)
7115 temp_conn = conn_iter->next;
7116 GNUNET_free(conn_iter);
7117 conn_iter = temp_conn;
7120 conn_iter = pg->peers[off].blacklisted_peers_head;
7121 while (conn_iter != NULL)
7123 temp_conn = conn_iter->next;
7124 GNUNET_free(conn_iter);
7125 conn_iter = temp_conn;
7128 conn_iter = pg->peers[off].connect_peers_working_set_head;
7129 while (conn_iter != NULL)
7131 temp_conn = conn_iter->next;
7132 GNUNET_free(conn_iter);
7133 conn_iter = temp_conn;
7136 if (pg->peers[off].allowed_peers != NULL)
7137 GNUNET_CONTAINER_multihashmap_destroy (pg->peers[off].allowed_peers);
7138 if (pg->peers[off].connect_peers != NULL)
7139 GNUNET_CONTAINER_multihashmap_destroy (pg->peers[off].connect_peers);
7140 if (pg->peers[off].blacklisted_peers != NULL)
7141 GNUNET_CONTAINER_multihashmap_destroy (pg->
7142 peers[off].blacklisted_peers);
7147 /* end of testing_group.c */