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", "");
1475 GNUNET_CONFIGURATION_set_value_string (uc.ret, "transport-tcp", "USE_LOCALADDR",
1477 GNUNET_CONFIGURATION_set_value_string (uc.ret, "transport-udp", "USE_LOCALADDR",
1479 GNUNET_free_non_null (control_host);
1480 GNUNET_free (allowed_hosts);
1483 /* arm needs to know to allow connections from the host on which it is running,
1484 * otherwise gnunet-arm is unable to connect to it in some instances */
1485 if (hostname != NULL)
1487 GNUNET_asprintf (&allowed_hosts, "%s; 127.0.0.1;", hostname);
1488 GNUNET_CONFIGURATION_set_value_string (uc.ret, "nat", "BINDTO",
1490 GNUNET_CONFIGURATION_set_value_string (uc.ret, "nat", "INTERNAL_ADDRESS",
1492 GNUNET_CONFIGURATION_set_value_string (uc.ret, "nat", "EXTERNAL_ADDRESS",
1494 GNUNET_CONFIGURATION_set_value_string (uc.ret, "disablev6", "BINDTO",
1496 GNUNET_CONFIGURATION_set_value_string (uc.ret, "transport-tcp", "USE_LOCALADDR",
1498 GNUNET_CONFIGURATION_set_value_string (uc.ret, "transport-udp", "USE_LOCALADDR",
1500 GNUNET_CONFIGURATION_set_value_string (uc.ret, "arm", "ACCEPT_FROM",
1502 GNUNET_free (allowed_hosts);
1506 GNUNET_CONFIGURATION_set_value_string (uc.ret, "transport-tcp", "USE_LOCALADDR",
1508 GNUNET_CONFIGURATION_set_value_string (uc.ret, "transport-udp", "USE_LOCALADDR",
1510 GNUNET_CONFIGURATION_set_value_string (uc.ret, "nat", "BINDTO",
1512 GNUNET_CONFIGURATION_set_value_string (uc.ret, "nat", "INTERNAL_ADDRESS",
1514 GNUNET_CONFIGURATION_set_value_string (uc.ret, "nat", "EXTERNAL_ADDRESS",
1516 GNUNET_CONFIGURATION_set_value_string (uc.ret, "disablev6", "BINDTO",
1520 *port = (uint16_t) uc.nport;
1528 * Remove entries from the peer connection list
1530 * @param pg the peer group we are working with
1531 * @param first index of the first peer
1532 * @param second index of the second peer
1533 * @param list the peer list to use
1534 * @param check UNUSED
1536 * @return the number of connections added (can be 0, 1 or 2)
1540 remove_connections(struct GNUNET_TESTING_PeerGroup *pg, unsigned int first,
1541 unsigned int second, enum PeerLists list, unsigned int check)
1545 struct PeerConnection **first_list;
1546 struct PeerConnection **second_list;
1547 struct PeerConnection *first_iter;
1548 struct PeerConnection *second_iter;
1549 struct PeerConnection **first_tail;
1550 struct PeerConnection **second_tail;
1553 GNUNET_HashCode hash_first;
1554 GNUNET_HashCode hash_second;
1556 hash_from_uid (first, &hash_first);
1557 hash_from_uid (second, &hash_second);
1565 first_list = &pg->peers[first].allowed_peers_head;
1566 second_list = &pg->peers[second].allowed_peers_head;
1567 first_tail = &pg->peers[first].allowed_peers_tail;
1568 second_tail = &pg->peers[second].allowed_peers_tail;
1571 first_list = &pg->peers[first].connect_peers_head;
1572 second_list = &pg->peers[second].connect_peers_head;
1573 first_tail = &pg->peers[first].connect_peers_tail;
1574 second_tail = &pg->peers[second].connect_peers_tail;
1577 first_list = &pg->peers[first].blacklisted_peers_head;
1578 second_list = &pg->peers[second].blacklisted_peers_head;
1579 first_tail = &pg->peers[first].blacklisted_peers_tail;
1580 second_tail = &pg->peers[second].blacklisted_peers_tail;
1583 first_list = &pg->peers[first].connect_peers_working_set_head;
1584 second_list = &pg->peers[second].connect_peers_working_set_head;
1585 first_tail = &pg->peers[first].connect_peers_working_set_tail;
1586 second_tail = &pg->peers[second].connect_peers_working_set_tail;
1593 first_iter = *first_list;
1594 while (first_iter != NULL)
1596 if (first_iter->index == second)
1598 GNUNET_CONTAINER_DLL_remove(*first_list, *first_tail, first_iter);
1599 GNUNET_free(first_iter);
1603 first_iter = first_iter->next;
1606 second_iter = *second_list;
1607 while (second_iter != NULL)
1609 if (second_iter->index == first)
1611 GNUNET_CONTAINER_DLL_remove(*second_list, *second_tail, second_iter);
1612 GNUNET_free(second_iter);
1616 second_iter = second_iter->next;
1620 GNUNET_CONTAINER_multihashmap_contains (pg->peers[first].blacklisted_peers,
1623 GNUNET_CONTAINER_multihashmap_remove_all (pg->peers[first].blacklisted_peers,
1628 GNUNET_CONTAINER_multihashmap_contains (pg->peers[second].blacklisted_peers,
1631 GNUNET_CONTAINER_multihashmap_remove_all (pg->peers[second].blacklisted_peers,
1640 * Add entries to the some list
1642 * @param pg the peer group we are working with
1643 * @param first index of the first peer
1644 * @param second index of the second peer
1645 * @param list the list type that we should modify
1646 * @param check GNUNET_YES to check lists before adding
1647 * GNUNET_NO to force add
1649 * @return the number of connections added (can be 0, 1 or 2)
1653 add_connections(struct GNUNET_TESTING_PeerGroup *pg, unsigned int first,
1654 unsigned int second, enum PeerLists list, unsigned int check)
1660 struct PeerConnection **first_list;
1661 struct PeerConnection **second_list;
1662 struct PeerConnection *first_iter;
1663 struct PeerConnection *second_iter;
1664 struct PeerConnection *new_first;
1665 struct PeerConnection *new_second;
1666 struct PeerConnection **first_tail;
1667 struct PeerConnection **second_tail;
1672 first_list = &pg->peers[first].allowed_peers_head;
1673 second_list = &pg->peers[second].allowed_peers_head;
1674 first_tail = &pg->peers[first].allowed_peers_tail;
1675 second_tail = &pg->peers[second].allowed_peers_tail;
1678 first_list = &pg->peers[first].connect_peers_head;
1679 second_list = &pg->peers[second].connect_peers_head;
1680 first_tail = &pg->peers[first].connect_peers_tail;
1681 second_tail = &pg->peers[second].connect_peers_tail;
1684 first_list = &pg->peers[first].blacklisted_peers_head;
1685 second_list = &pg->peers[second].blacklisted_peers_head;
1686 first_tail = &pg->peers[first].blacklisted_peers_tail;
1687 second_tail = &pg->peers[second].blacklisted_peers_tail;
1690 first_list = &pg->peers[first].connect_peers_working_set_head;
1691 second_list = &pg->peers[second].connect_peers_working_set_head;
1692 first_tail = &pg->peers[first].connect_peers_working_set_tail;
1693 second_tail = &pg->peers[second].connect_peers_working_set_tail;
1700 add_first = GNUNET_YES;
1701 add_second = GNUNET_YES;
1703 if (check == GNUNET_YES)
1705 first_iter = *first_list;
1706 while (first_iter != NULL)
1708 if (first_iter->index == second)
1710 add_first = GNUNET_NO;
1713 first_iter = first_iter->next;
1716 second_iter = *second_list;
1717 while (second_iter != NULL)
1719 if (second_iter->index == first)
1721 add_second = GNUNET_NO;
1724 second_iter = second_iter->next;
1731 new_first = GNUNET_malloc (sizeof (struct PeerConnection));
1732 new_first->index = second;
1733 GNUNET_CONTAINER_DLL_insert(*first_list, *first_tail, new_first);
1734 pg->peers[first].num_connections++;
1740 new_second = GNUNET_malloc (sizeof (struct PeerConnection));
1741 new_second->index = first;
1742 GNUNET_CONTAINER_DLL_insert(*second_list, *second_tail, new_second);
1743 pg->peers[second].num_connections++;
1751 * Scale free network construction as described in:
1753 * "Emergence of Scaling in Random Networks." Science 286, 509-512, 1999.
1755 * Start with a network of "one" peer, then progressively add
1756 * peers up to the total number. At each step, iterate over
1757 * all possible peers and connect new peer based on number of
1758 * existing connections of the target peer.
1760 * @param pg the peer group we are dealing with
1761 * @param proc the connection processor to use
1762 * @param list the peer list to use
1764 * @return the number of connections created
1767 create_scale_free(struct GNUNET_TESTING_PeerGroup *pg,
1768 GNUNET_TESTING_ConnectionProcessor proc, enum PeerLists list)
1771 unsigned int total_connections;
1772 unsigned int outer_count;
1774 unsigned int previous_total_connections;
1778 GNUNET_assert (pg->total > 1);
1780 /* Add a connection between the first two nodes */
1781 total_connections = proc (pg, 0, 1, list, GNUNET_YES);
1783 for (outer_count = 1; outer_count < pg->total; outer_count++)
1785 previous_total_connections = total_connections;
1786 for (i = 0; i < outer_count; i++)
1788 probability = pg->peers[i].num_connections
1789 / (double) previous_total_connections;
1791 = ((double) GNUNET_CRYPTO_random_u64 (GNUNET_CRYPTO_QUALITY_WEAK,
1793 / ((double) UINT64_MAX);
1795 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1796 "Considering connecting peer %d to peer %d\n",
1799 if (random < probability)
1802 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1803 "Connecting peer %d to peer %d\n", outer_count, i);
1805 total_connections += proc (pg, outer_count, i, list, GNUNET_YES);
1810 return total_connections;
1814 * Create a topology given a peer group (set of running peers)
1815 * and a connection processor. Creates a small world topology
1816 * according to the rewired ring construction. The basic
1817 * behavior is that a ring topology is created, but with some
1818 * probability instead of connecting a peer to the next
1819 * neighbor in the ring a connection will be created to a peer
1820 * selected uniformly at random. We use the TESTING
1821 * PERCENTAGE option to specify what number of
1822 * connections each peer should have. Default is 2,
1823 * which makes the ring, any given number is multiplied by
1824 * the log of the network size; i.e. a PERCENTAGE of 2 makes
1825 * each peer have on average 2logn connections. The additional
1826 * connections are made at increasing distance around the ring
1827 * from the original peer, or to random peers based on the re-
1828 * wiring probability. The TESTING
1829 * PROBABILITY option is used as the probability that a given
1830 * connection is rewired.
1832 * @param pg the peergroup to create the topology on
1833 * @param proc the connection processor to call to actually set
1834 * up connections between two peers
1835 * @param list the peer list to use
1837 * @return the number of connections that were set up
1841 create_small_world_ring(struct GNUNET_TESTING_PeerGroup *pg,
1842 GNUNET_TESTING_ConnectionProcessor proc,
1843 enum PeerLists list)
1847 unsigned int natLog;
1848 unsigned int randomPeer;
1849 double random, logNModifier, probability;
1850 unsigned int smallWorldConnections;
1855 unsigned int useAnd;
1856 int connect_attempts;
1858 logNModifier = 0.5; /* FIXME: default value? */
1859 if (GNUNET_OK == GNUNET_CONFIGURATION_get_value_string (pg->cfg, "TESTING",
1863 if (sscanf (p_string, "%lf", &logNModifier) != 1)
1865 GNUNET_ERROR_TYPE_WARNING,
1867 ("Invalid value `%s' for option `%s' in section `%s': expected float\n"),
1868 p_string, "LOGNMODIFIER", "TESTING");
1869 GNUNET_free (p_string);
1871 probability = 0.5; /* FIXME: default percentage? */
1872 if (GNUNET_OK == GNUNET_CONFIGURATION_get_value_string (pg->cfg, "TESTING",
1876 if (sscanf (p_string, "%lf", &probability) != 1)
1878 GNUNET_ERROR_TYPE_WARNING,
1880 ("Invalid value `%s' for option `%s' in section `%s': expected float\n"),
1881 p_string, "PERCENTAGE", "TESTING");
1882 GNUNET_free (p_string);
1884 natLog = log (pg->total);
1885 connsPerPeer = ceil (natLog * logNModifier);
1887 if (connsPerPeer % 2 == 1)
1890 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, _("Target is %d connections per peer."),
1893 smallWorldConnections = 0;
1894 connect_attempts = 0;
1895 for (i = 0; i < pg->total; i++)
1898 max = i + connsPerPeer / 2;
1899 min = i - connsPerPeer / 2;
1901 if (max > pg->total - 1)
1903 max = max - pg->total;
1909 min = pg->total - 1 + min;
1913 for (j = 0; j < connsPerPeer / 2; j++)
1916 = ((double) GNUNET_CRYPTO_random_u64 (GNUNET_CRYPTO_QUALITY_WEAK,
1918 / ((double) UINT64_MAX));
1919 if (random < probability)
1921 /* Connect to uniformly selected random peer */
1923 = GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK,
1925 while ((((randomPeer < max) && (randomPeer > min)) && (useAnd
1926 == 0)) || (((randomPeer > min) || (randomPeer < max))
1930 = GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK,
1933 smallWorldConnections += proc (pg, i, randomPeer, list,
1938 nodeToConnect = i + j + 1;
1939 if (nodeToConnect > pg->total - 1)
1941 nodeToConnect = nodeToConnect - pg->total;
1943 connect_attempts += proc (pg, i, nodeToConnect, list, GNUNET_YES);
1949 connect_attempts += smallWorldConnections;
1951 return connect_attempts;
1955 * Create a topology given a peer group (set of running peers)
1956 * and a connection processor.
1958 * @param pg the peergroup to create the topology on
1959 * @param proc the connection processor to call to actually set
1960 * up connections between two peers
1961 * @param list the peer list to use
1963 * @return the number of connections that were set up
1967 create_nated_internet(struct GNUNET_TESTING_PeerGroup *pg,
1968 GNUNET_TESTING_ConnectionProcessor proc,
1969 enum PeerLists list)
1971 unsigned int outer_count, inner_count;
1972 unsigned int cutoff;
1973 int connect_attempts;
1974 double nat_percentage;
1977 nat_percentage = 0.6; /* FIXME: default percentage? */
1978 if (GNUNET_OK == GNUNET_CONFIGURATION_get_value_string (pg->cfg, "TESTING",
1982 if (sscanf (p_string, "%lf", &nat_percentage) != 1)
1984 GNUNET_ERROR_TYPE_WARNING,
1986 ("Invalid value `%s' for option `%s' in section `%s': expected float\n"),
1987 p_string, "PERCENTAGE", "TESTING");
1988 GNUNET_free (p_string);
1991 cutoff = (unsigned int) (nat_percentage * pg->total);
1992 connect_attempts = 0;
1993 for (outer_count = 0; outer_count < pg->total - 1; outer_count++)
1995 for (inner_count = outer_count + 1; inner_count < pg->total; inner_count++)
1997 if ((outer_count > cutoff) || (inner_count > cutoff))
2000 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2001 "Connecting peer %d to peer %d\n",
2002 outer_count, inner_count);
2004 connect_attempts += proc (pg, outer_count, inner_count, list,
2009 return connect_attempts;
2014 * Create a topology given a peer group (set of running peers)
2015 * and a connection processor.
2017 * @param pg the peergroup to create the topology on
2018 * @param proc the connection processor to call to actually set
2019 * up connections between two peers
2020 * @param list the peer list to use
2022 * @return the number of connections that were set up
2026 create_nated_internet_copy(struct GNUNET_TESTING_PeerGroup *pg,
2027 GNUNET_TESTING_ConnectionProcessor proc,
2028 enum PeerLists list)
2030 unsigned int outer_count, inner_count;
2031 unsigned int cutoff;
2032 int connect_attempts;
2033 double nat_percentage;
2036 struct ProgressMeter *conn_meter;
2038 nat_percentage = 0.6; /* FIXME: default percentage? */
2039 if (GNUNET_OK == GNUNET_CONFIGURATION_get_value_string (pg->cfg, "TESTING",
2043 if (sscanf (p_string, "%lf", &nat_percentage) != 1)
2045 GNUNET_ERROR_TYPE_WARNING,
2047 ("Invalid value `%s' for option `%s' in section `%s': expected float\n"),
2048 p_string, "PERCENTAGE", "TESTING");
2049 GNUNET_free (p_string);
2052 cutoff = (unsigned int) (nat_percentage * pg->total);
2054 for (outer_count = 0; outer_count < pg->total - 1; outer_count++)
2056 for (inner_count = outer_count + 1; inner_count < pg->total; inner_count++)
2058 if ((outer_count > cutoff) || (inner_count > cutoff))
2064 conn_meter = create_meter (count, "NAT COPY", GNUNET_YES);
2065 connect_attempts = 0;
2066 for (outer_count = 0; outer_count < pg->total - 1; outer_count++)
2068 for (inner_count = outer_count + 1; inner_count < pg->total; inner_count++)
2070 if ((outer_count > cutoff) || (inner_count > cutoff))
2073 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2074 "Connecting peer %d to peer %d\n",
2075 outer_count, inner_count);
2077 connect_attempts += proc (pg, outer_count, inner_count, list,
2079 add_connections (pg, outer_count, inner_count, ALLOWED, GNUNET_NO);
2080 update_meter (conn_meter);
2084 free_meter (conn_meter);
2086 return connect_attempts;
2091 * Create a topology given a peer group (set of running peers)
2092 * and a connection processor.
2094 * @param pg the peergroup to create the topology on
2095 * @param proc the connection processor to call to actually set
2096 * up connections between two peers
2097 * @param list the peer list to use
2099 * @return the number of connections that were set up
2103 create_small_world(struct GNUNET_TESTING_PeerGroup *pg,
2104 GNUNET_TESTING_ConnectionProcessor proc, enum PeerLists list)
2106 unsigned int i, j, k;
2107 unsigned int square;
2110 unsigned int toggle = 1;
2111 unsigned int nodeToConnect;
2112 unsigned int natLog;
2113 unsigned int node1Row;
2114 unsigned int node1Col;
2115 unsigned int node2Row;
2116 unsigned int node2Col;
2117 unsigned int distance;
2118 double probability, random, percentage;
2119 unsigned int smallWorldConnections;
2120 unsigned int small_world_it;
2122 int connect_attempts;
2123 square = floor (sqrt (pg->total));
2127 percentage = 0.5; /* FIXME: default percentage? */
2128 if (GNUNET_OK == GNUNET_CONFIGURATION_get_value_string (pg->cfg, "TESTING",
2132 if (sscanf (p_string, "%lf", &percentage) != 1)
2134 GNUNET_ERROR_TYPE_WARNING,
2136 ("Invalid value `%s' for option `%s' in section `%s': expected float\n"),
2137 p_string, "PERCENTAGE", "TESTING");
2138 GNUNET_free (p_string);
2140 if (percentage < 0.0)
2143 GNUNET_ERROR_TYPE_WARNING,
2145 ("Invalid value `%s' for option `%s' in section `%s': got %f, needed value greater than 0\n"),
2146 "PERCENTAGE", "TESTING", percentage);
2149 probability = 0.5; /* FIXME: default percentage? */
2150 if (GNUNET_OK == GNUNET_CONFIGURATION_get_value_string (pg->cfg, "TESTING",
2154 if (sscanf (p_string, "%lf", &probability) != 1)
2156 GNUNET_ERROR_TYPE_WARNING,
2158 ("Invalid value `%s' for option `%s' in section `%s': expected float\n"),
2159 p_string, "PROBABILITY", "TESTING");
2160 GNUNET_free (p_string);
2162 if (square * square != pg->total)
2164 while (rows * cols < pg->total)
2166 if (toggle % 2 == 0)
2175 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2177 ("Connecting nodes in 2d torus topology: %u rows %u columns\n"),
2181 connect_attempts = 0;
2182 /* Rows and columns are all sorted out, now iterate over all nodes and connect each
2183 * to the node to its right and above. Once this is over, we'll have our torus!
2184 * Special case for the last node (if the rows and columns are not equal), connect
2185 * to the first in the row to maintain topology.
2187 for (i = 0; i < pg->total; i++)
2189 /* First connect to the node to the right */
2190 if (((i + 1) % cols != 0) && (i + 1 != pg->total))
2191 nodeToConnect = i + 1;
2192 else if (i + 1 == pg->total)
2193 nodeToConnect = rows * cols - cols;
2195 nodeToConnect = i - cols + 1;
2197 connect_attempts += proc (pg, i, nodeToConnect, list, GNUNET_YES);
2201 nodeToConnect = (rows * cols) - cols + i;
2202 if (nodeToConnect >= pg->total)
2203 nodeToConnect -= cols;
2206 nodeToConnect = i - cols;
2208 if (nodeToConnect < pg->total)
2209 connect_attempts += proc (pg, i, nodeToConnect, list, GNUNET_YES);
2211 natLog = log (pg->total);
2212 #if VERBOSE_TESTING > 2
2213 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2214 _("natural log of %d is %d, will run %d iterations\n"),
2215 pg->total, natLog, (int) (natLog * percentage));
2216 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2217 _("Total connections added thus far: %u!\n"), connect_attempts);
2219 smallWorldConnections = 0;
2220 small_world_it = (unsigned int) (natLog * percentage);
2221 if (small_world_it < 1)
2223 GNUNET_assert (small_world_it > 0 && small_world_it < (unsigned int) -1);
2224 for (i = 0; i < small_world_it; i++)
2226 for (j = 0; j < pg->total; j++)
2228 /* Determine the row and column of node at position j on the 2d torus */
2229 node1Row = j / cols;
2230 node1Col = j - (node1Row * cols);
2231 for (k = 0; k < pg->total; k++)
2233 /* Determine the row and column of node at position k on the 2d torus */
2234 node2Row = k / cols;
2235 node2Col = k - (node2Row * cols);
2236 /* Simple Cartesian distance */
2237 distance = abs (node1Row - node2Row) + abs (node1Col - node2Col);
2240 /* Calculate probability as 1 over the square of the distance */
2241 probability = 1.0 / (distance * distance);
2242 /* Choose a random value between 0 and 1 */
2244 = ((double) GNUNET_CRYPTO_random_u64 (
2245 GNUNET_CRYPTO_QUALITY_WEAK,
2247 / ((double) UINT64_MAX);
2248 /* If random < probability, then connect the two nodes */
2249 if (random < probability)
2250 smallWorldConnections += proc (pg, j, k, list, GNUNET_YES);
2256 connect_attempts += smallWorldConnections;
2257 #if VERBOSE_TESTING > 2
2258 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2259 _("Total connections added for small world: %d!\n"),
2260 smallWorldConnections);
2262 return connect_attempts;
2266 * Create a topology given a peer group (set of running peers)
2267 * and a connection processor.
2269 * @param pg the peergroup to create the topology on
2270 * @param proc the connection processor to call to actually set
2271 * up connections between two peers
2272 * @param list the peer list to use
2274 * @return the number of connections that were set up
2278 create_erdos_renyi(struct GNUNET_TESTING_PeerGroup *pg,
2279 GNUNET_TESTING_ConnectionProcessor proc, enum PeerLists list)
2282 unsigned int outer_count;
2283 unsigned int inner_count;
2284 int connect_attempts;
2288 probability = 0.5; /* FIXME: default percentage? */
2289 if (GNUNET_OK == GNUNET_CONFIGURATION_get_value_string (pg->cfg, "TESTING",
2293 if (sscanf (p_string, "%lf", &probability) != 1)
2295 GNUNET_ERROR_TYPE_WARNING,
2297 ("Invalid value `%s' for option `%s' in section `%s': expected float\n"),
2298 p_string, "PROBABILITY", "TESTING");
2299 GNUNET_free (p_string);
2301 connect_attempts = 0;
2302 for (outer_count = 0; outer_count < pg->total - 1; outer_count++)
2304 for (inner_count = outer_count + 1; inner_count < pg->total; inner_count++)
2307 = ((double) GNUNET_CRYPTO_random_u64 (GNUNET_CRYPTO_QUALITY_WEAK,
2309 / ((double) UINT64_MAX);
2311 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2312 _("rand is %f probability is %f\n"), temp_rand,
2315 if (temp_rand < probability)
2317 connect_attempts += proc (pg, outer_count, inner_count, list,
2323 return connect_attempts;
2327 * Create a topology given a peer group (set of running peers)
2328 * and a connection processor. This particular function creates
2329 * the connections for a 2d-torus, plus additional "closest"
2330 * connections per peer.
2332 * @param pg the peergroup to create the topology on
2333 * @param proc the connection processor to call to actually set
2334 * up connections between two peers
2335 * @param list the peer list to use
2337 * @return the number of connections that were set up
2341 create_2d_torus(struct GNUNET_TESTING_PeerGroup *pg,
2342 GNUNET_TESTING_ConnectionProcessor proc, enum PeerLists list)
2345 unsigned int square;
2348 unsigned int toggle = 1;
2349 unsigned int nodeToConnect;
2350 int connect_attempts;
2352 connect_attempts = 0;
2354 square = floor (sqrt (pg->total));
2358 if (square * square != pg->total)
2360 while (rows * cols < pg->total)
2362 if (toggle % 2 == 0)
2371 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2373 ("Connecting nodes in 2d torus topology: %u rows %u columns\n"),
2376 /* Rows and columns are all sorted out, now iterate over all nodes and connect each
2377 * to the node to its right and above. Once this is over, we'll have our torus!
2378 * Special case for the last node (if the rows and columns are not equal), connect
2379 * to the first in the row to maintain topology.
2381 for (i = 0; i < pg->total; i++)
2383 /* First connect to the node to the right */
2384 if (((i + 1) % cols != 0) && (i + 1 != pg->total))
2385 nodeToConnect = i + 1;
2386 else if (i + 1 == pg->total)
2387 nodeToConnect = rows * cols - cols;
2389 nodeToConnect = i - cols + 1;
2391 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2392 "Connecting peer %d to peer %d\n", i, nodeToConnect);
2394 connect_attempts += proc (pg, i, nodeToConnect, list, GNUNET_YES);
2396 /* Second connect to the node immediately above */
2399 nodeToConnect = (rows * cols) - cols + i;
2400 if (nodeToConnect >= pg->total)
2401 nodeToConnect -= cols;
2404 nodeToConnect = i - cols;
2406 if (nodeToConnect < pg->total)
2409 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2410 "Connecting peer %d to peer %d\n", i, nodeToConnect);
2412 connect_attempts += proc (pg, i, nodeToConnect, list, GNUNET_YES);
2417 return connect_attempts;
2421 * Create a topology given a peer group (set of running peers)
2422 * and a connection processor.
2424 * @param pg the peergroup to create the topology on
2425 * @param proc the connection processor to call to actually set
2426 * up connections between two peers
2427 * @param list the peer list to use
2428 * @param check does the connection processor need to check before
2429 * performing an action on the list?
2431 * @return the number of connections that were set up
2435 create_clique(struct GNUNET_TESTING_PeerGroup *pg,
2436 GNUNET_TESTING_ConnectionProcessor proc, enum PeerLists list,
2439 unsigned int outer_count;
2440 unsigned int inner_count;
2441 int connect_attempts;
2442 struct ProgressMeter *conn_meter;
2443 connect_attempts = 0;
2445 conn_meter = create_meter ((((pg->total * pg->total) + pg->total) / 2)
2446 - pg->total, "Create Clique ", GNUNET_NO);
2447 for (outer_count = 0; outer_count < pg->total - 1; outer_count++)
2449 for (inner_count = outer_count + 1; inner_count < pg->total; inner_count++)
2452 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2453 "Connecting peer %d to peer %d\n",
2454 outer_count, inner_count);
2456 connect_attempts += proc (pg, outer_count, inner_count, list, check);
2457 update_meter (conn_meter);
2460 reset_meter (conn_meter);
2461 free_meter (conn_meter);
2462 return connect_attempts;
2467 * Iterator over hash map entries.
2469 * @param cls closure the peer group
2470 * @param key the key stored in the hashmap is the
2471 * index of the peer to connect to
2472 * @param value value in the hash map, handle to the peer daemon
2473 * @return GNUNET_YES if we should continue to
2478 unblacklist_iterator (void *cls,
2479 const GNUNET_HashCode * key,
2482 struct UnblacklistContext *un_ctx = cls;
2483 uint32_t second_pos;
2485 uid_from_hash (key, &second_pos);
2487 unblacklist_connections(un_ctx->pg, un_ctx->first_uid, second_pos);
2495 * Create a blacklist topology based on the allowed topology
2496 * which disallows any connections not in the allowed topology
2497 * at the transport level.
2499 * @param pg the peergroup to create the topology on
2500 * @param proc the connection processor to call to allow
2501 * up connections between two peers
2503 * @return the number of connections that were set up
2507 copy_allowed (struct GNUNET_TESTING_PeerGroup *pg,
2508 GNUNET_TESTING_ConnectionProcessor proc)
2512 struct PeerConnection *iter;
2514 struct UnblacklistContext un_ctx;
2519 for (count = 0; count < pg->total - 1; count++)
2522 iter = pg->peers[count].allowed_peers_head;
2523 while (iter != NULL)
2525 remove_connections (pg, count, iter->index, BLACKLIST, GNUNET_YES);
2526 //unblacklist_connections(pg, count, iter->index);
2530 un_ctx.first_uid = count;
2531 total += GNUNET_CONTAINER_multihashmap_iterate(pg->peers[count].allowed_peers,
2532 &unblacklist_iterator,
2536 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2537 "Unblacklisted %u peers\n",
2544 * Create a topology given a peer group (set of running peers)
2545 * and a connection processor.
2547 * @param pg the peergroup to create the topology on
2548 * @param proc the connection processor to call to actually set
2549 * up connections between two peers
2550 * @param list which list should be modified
2552 * @return the number of connections that were set up
2556 create_line(struct GNUNET_TESTING_PeerGroup *pg,
2557 GNUNET_TESTING_ConnectionProcessor proc, enum PeerLists list)
2560 unsigned int connect_attempts;
2562 connect_attempts = 0;
2563 /* Connect each peer to the next highest numbered peer */
2564 for (count = 0; count < pg->total - 1; count++)
2567 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2568 "Connecting peer %d to peer %d\n",
2571 connect_attempts += proc (pg, count, count + 1, list, GNUNET_YES);
2574 return connect_attempts;
2578 * Create a topology given a peer group (set of running peers)
2579 * and a connection processor.
2581 * @param pg the peergroup to create the topology on
2582 * @param filename the file to read topology information from
2583 * @param proc the connection processor to call to actually set
2584 * up connections between two peers
2585 * @param list the peer list to use
2587 * @return the number of connections that were set up
2591 create_from_file(struct GNUNET_TESTING_PeerGroup *pg, char *filename,
2592 GNUNET_TESTING_ConnectionProcessor proc, enum PeerLists list)
2594 int connect_attempts;
2595 unsigned int first_peer_index;
2596 unsigned int second_peer_index;
2601 unsigned int total_peers;
2602 enum States curr_state;
2604 connect_attempts = 0;
2605 if (GNUNET_OK != GNUNET_DISK_file_test (filename))
2606 GNUNET_DISK_fn_write (filename, NULL, 0, GNUNET_DISK_PERM_USER_READ);
2608 if ((0 != STAT (filename, &frstat)) || (frstat.st_size == 0))
2610 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
2611 "Could not open file `%s' specified for topology!", filename);
2612 return connect_attempts;
2615 data = GNUNET_malloc_large (frstat.st_size);
2616 GNUNET_assert(data != NULL);
2617 if (frstat.st_size != GNUNET_DISK_fn_read (filename, data, frstat.st_size))
2620 GNUNET_ERROR_TYPE_ERROR,
2621 "Could not read file %s specified for host list, ending test!",
2624 return connect_attempts;
2629 first_peer_index = 0;
2630 /* First line should contain a single integer, specifying the number of peers */
2631 /* Each subsequent line should contain this format PEER_INDEX:OTHER_PEER_INDEX[,...] */
2632 curr_state = NUM_PEERS;
2633 while (count < frstat.st_size - 1)
2635 if ((buf[count] == '\n') || (buf[count] == ' '))
2645 total_peers = strtoul(&buf[count], NULL, 10);
2648 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2649 "Failed to read number of peers from topology file!\n");
2651 return connect_attempts;
2653 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2654 "Read %u total peers in topology\n", total_peers);
2655 GNUNET_assert(total_peers == pg->total);
2656 curr_state = PEER_INDEX;
2657 while ((buf[count] != '\n') && (count < frstat.st_size - 1))
2663 first_peer_index = strtoul(&buf[count], NULL, 10);
2666 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2667 "Failed to read peer index from topology file!\n");
2669 return connect_attempts;
2671 while ((buf[count] != ':') && (count < frstat.st_size - 1))
2674 curr_state = OTHER_PEER_INDEX;
2677 if (1 == sscanf (&buf[count], ":"))
2678 curr_state = OTHER_PEER_INDEX;
2681 case OTHER_PEER_INDEX:
2683 second_peer_index = strtoul(&buf[count], NULL, 10);
2686 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2687 "Failed to peer index from topology file!\n");
2689 return connect_attempts;
2691 /* Assume file is written with first peer 1, but array index is 0 */
2692 connect_attempts += proc (pg, first_peer_index - 1, second_peer_index
2693 - 1, list, GNUNET_YES);
2694 while ((buf[count] != '\n') && (buf[count] != ',') && (count
2695 < frstat.st_size - 1))
2697 if (buf[count] == '\n')
2699 curr_state = PEER_INDEX;
2701 else if (buf[count] != ',')
2703 curr_state = OTHER_PEER_INDEX;
2708 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
2709 "Found bad data in topology file while in state %d!\n",
2713 return connect_attempts;
2717 return connect_attempts;
2721 * Create a topology given a peer group (set of running peers)
2722 * and a connection processor.
2724 * @param pg the peergroup to create the topology on
2725 * @param proc the connection processor to call to actually set
2726 * up connections between two peers
2727 * @param list the peer list to use
2729 * @return the number of connections that were set up
2733 create_ring(struct GNUNET_TESTING_PeerGroup *pg,
2734 GNUNET_TESTING_ConnectionProcessor proc, enum PeerLists list)
2737 int connect_attempts;
2739 connect_attempts = 0;
2741 /* Connect each peer to the next highest numbered peer */
2742 for (count = 0; count < pg->total - 1; count++)
2745 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2746 "Connecting peer %d to peer %d\n", count, count + 1);
2748 connect_attempts += proc (pg, count, count + 1, list, GNUNET_YES);
2751 /* Connect the last peer to the first peer */
2752 connect_attempts += proc (pg, pg->total - 1, 0, list, GNUNET_YES);
2754 return connect_attempts;
2759 * Iterator for writing friends of a peer to a file.
2761 * @param cls closure, an open writable file handle
2762 * @param key the key the daemon was stored under
2763 * @param value the GNUNET_TESTING_Daemon that needs to be written.
2765 * @return GNUNET_YES to continue iteration
2767 * TODO: Could replace friend_file_iterator and blacklist_file_iterator
2768 * with a single file_iterator that takes a closure which contains
2769 * the prefix to write before the peer. Then this could be used
2770 * for blacklisting multiple transports and writing the friend
2771 * file. I'm sure *someone* will complain loudly about other
2772 * things that negate these functions even existing so no point in
2776 friend_file_iterator (void *cls, const GNUNET_HashCode * key, void *value)
2778 FILE *temp_friend_handle = cls;
2779 struct GNUNET_TESTING_Daemon *peer = value;
2780 struct GNUNET_PeerIdentity *temppeer;
2781 struct GNUNET_CRYPTO_HashAsciiEncoded peer_enc;
2783 temppeer = &peer->id;
2784 GNUNET_CRYPTO_hash_to_enc (&temppeer->hashPubKey, &peer_enc);
2785 fprintf (temp_friend_handle, "%s\n", (char *) &peer_enc);
2790 struct BlacklistContext
2793 * The (open) file handle to write to
2795 FILE *temp_file_handle;
2798 * The transport that this peer will be blacklisted on.
2804 * Iterator for writing blacklist data to appropriate files.
2806 * @param cls closure, an open writable file handle
2807 * @param key the key the daemon was stored under
2808 * @param value the GNUNET_TESTING_Daemon that needs to be written.
2810 * @return GNUNET_YES to continue iteration
2813 blacklist_file_iterator (void *cls, const GNUNET_HashCode * key, void *value)
2815 struct BlacklistContext *blacklist_ctx = cls;
2816 struct GNUNET_TESTING_Daemon *peer = value;
2817 struct GNUNET_PeerIdentity *temppeer;
2818 struct GNUNET_CRYPTO_HashAsciiEncoded peer_enc;
2820 temppeer = &peer->id;
2821 GNUNET_CRYPTO_hash_to_enc (&temppeer->hashPubKey, &peer_enc);
2822 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Writing entry %s:%s to file\n", blacklist_ctx->transport, (char *) &peer_enc);
2823 fprintf (blacklist_ctx->temp_file_handle, "%s:%s\n",
2824 blacklist_ctx->transport, (char *) &peer_enc);
2831 * Create the friend files based on the PeerConnection's
2832 * of each peer in the peer group, and copy the files
2833 * to the appropriate place
2835 * @param pg the peer group we are dealing with
2838 create_and_copy_friend_files(struct GNUNET_TESTING_PeerGroup *pg)
2840 FILE *temp_friend_handle;
2841 unsigned int pg_iter;
2842 char *temp_service_path;
2843 struct GNUNET_OS_Process **procarr;
2847 enum GNUNET_OS_ProcessStatusType type;
2848 unsigned long return_code;
2856 struct GNUNET_CRYPTO_HashAsciiEncoded peer_enc;
2857 struct PeerConnection *conn_iter;
2859 procarr = GNUNET_malloc (sizeof (struct GNUNET_OS_Process *) * pg->total);
2860 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
2862 mytemp = GNUNET_DISK_mktemp ("friends");
2863 GNUNET_assert (mytemp != NULL);
2864 temp_friend_handle = fopen (mytemp, "wt");
2865 GNUNET_assert (temp_friend_handle != NULL);
2867 conn_iter = pg->peers[pg_iter].allowed_peers_head;
2868 while (conn_iter != NULL)
2870 GNUNET_CRYPTO_hash_to_enc (
2871 &pg->peers[conn_iter->index].daemon->id.hashPubKey,
2873 fprintf (temp_friend_handle, "%s\n", (char *) &peer_enc);
2874 conn_iter = conn_iter->next;
2877 GNUNET_CONTAINER_multihashmap_iterate (pg->peers[pg_iter].allowed_peers,
2878 &friend_file_iterator,
2879 temp_friend_handle);
2881 fclose (temp_friend_handle);
2884 != GNUNET_CONFIGURATION_get_value_string (pg->peers[pg_iter].
2886 "PATHS", "SERVICEHOME",
2887 &temp_service_path))
2889 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2890 _("No `%s' specified in peer configuration in section `%s', cannot copy friends file!\n"),
2891 "SERVICEHOME", "PATHS");
2892 if (UNLINK (mytemp) != 0)
2893 GNUNET_log_strerror_file (GNUNET_ERROR_TYPE_WARNING,
2896 GNUNET_free (mytemp);
2900 if (pg->peers[pg_iter].daemon->hostname == NULL) /* Local, just copy the file */
2902 GNUNET_asprintf (&arg, "%s/friends", temp_service_path);
2903 procarr[pg_iter] = GNUNET_OS_start_process (NULL, NULL, "mv", "mv",
2905 GNUNET_assert(procarr[pg_iter] != NULL);
2907 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2908 "Copying file with command cp %s %s\n",
2912 ret = GNUNET_OS_process_wait (procarr[pg_iter]); /* FIXME: schedule this, throttle! */
2913 GNUNET_OS_process_close (procarr[pg_iter]);
2916 else /* Remote, scp the file to the correct place */
2918 if (NULL != pg->peers[pg_iter].daemon->username)
2919 GNUNET_asprintf (&arg, "%s@%s:%s/friends",
2920 pg->peers[pg_iter].daemon->username,
2921 pg->peers[pg_iter].daemon->hostname,
2924 GNUNET_asprintf (&arg, "%s:%s/friends",
2925 pg->peers[pg_iter].daemon->hostname,
2927 procarr[pg_iter] = GNUNET_OS_start_process (NULL, NULL, "scp", "scp",
2929 GNUNET_assert(procarr[pg_iter] != NULL);
2930 ret = GNUNET_OS_process_wait (procarr[pg_iter]); /* FIXME: schedule this, throttle! */
2931 GNUNET_OS_process_close (procarr[pg_iter]);
2932 if (ret != GNUNET_OK)
2934 /* FIXME: free contents of 'procarr' array */
2935 GNUNET_free (procarr);
2936 GNUNET_free (temp_service_path);
2937 GNUNET_free (mytemp);
2941 procarr[pg_iter] = NULL;
2943 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2944 "Copying file with command scp %s %s\n",
2950 GNUNET_free (temp_service_path);
2951 GNUNET_free (mytemp);
2956 ret = GNUNET_SYSERR;
2957 while ((count < max_wait) && (ret != GNUNET_OK))
2960 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
2963 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2964 "Checking copy status of file %d\n",
2967 if (procarr[pg_iter] != NULL) /* Check for already completed! */
2969 if (GNUNET_OS_process_status
2970 (procarr[pg_iter], &type, &return_code) != GNUNET_OK)
2972 ret = GNUNET_SYSERR;
2974 else if ((type != GNUNET_OS_PROCESS_EXITED)
2975 || (return_code != 0))
2977 ret = GNUNET_SYSERR;
2981 GNUNET_OS_process_close (procarr[pg_iter]);
2982 procarr[pg_iter] = NULL;
2984 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2992 if (ret == GNUNET_SYSERR)
2994 /* FIXME: why sleep here? -CG */
3000 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
3001 _("Finished copying all friend files!\n"));
3004 GNUNET_free (procarr);
3009 * Create the blacklist files based on the PeerConnection's
3010 * of each peer in the peer group, and copy the files
3011 * to the appropriate place.
3013 * @param pg the peer group we are dealing with
3014 * @param transports space delimited list of transports to blacklist
3017 create_and_copy_blacklist_files(struct GNUNET_TESTING_PeerGroup *pg,
3018 const char *transports)
3020 FILE *temp_file_handle;
3021 unsigned int pg_iter;
3022 char *temp_service_path;
3023 struct GNUNET_OS_Process **procarr;
3026 enum GNUNET_OS_ProcessStatusType type;
3027 unsigned long return_code;
3034 char *temp_transports;
3036 struct GNUNET_CRYPTO_HashAsciiEncoded peer_enc;
3037 struct PeerConnection *conn_iter;
3039 static struct BlacklistContext blacklist_ctx;
3042 procarr = GNUNET_malloc (sizeof (struct GNUNET_OS_Process *) * pg->total);
3043 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
3045 mytemp = GNUNET_DISK_mktemp ("blacklist");
3046 GNUNET_assert (mytemp != NULL);
3047 temp_file_handle = fopen (mytemp, "wt");
3048 GNUNET_assert (temp_file_handle != NULL);
3049 temp_transports = GNUNET_strdup (transports);
3051 blacklist_ctx.temp_file_handle = temp_file_handle;
3053 transport_len = strlen (temp_transports) + 1;
3056 for (i = 0; i < transport_len; i++)
3058 if ((temp_transports[i] == ' ') && (pos == NULL))
3059 continue; /* At start of string (whitespace) */
3060 else if ((temp_transports[i] == ' ') || (temp_transports[i] == '\0')) /* At end of string */
3062 temp_transports[i] = '\0';
3064 conn_iter = pg->peers[pg_iter].blacklisted_peers_head;
3065 while (conn_iter != NULL)
3067 GNUNET_CRYPTO_hash_to_enc (
3068 &pg->peers[conn_iter->index].daemon->id.hashPubKey,
3070 fprintf (temp_file_handle, "%s:%s\n", pos, (char *) &peer_enc);
3071 conn_iter = conn_iter->next;
3074 blacklist_ctx.transport = pos;
3075 (void) GNUNET_CONTAINER_multihashmap_iterate (pg->
3077 [pg_iter].blacklisted_peers,
3078 &blacklist_file_iterator,
3082 } /* At beginning of actual string */
3083 else if (pos == NULL)
3085 pos = &temp_transports[i];
3089 GNUNET_free (temp_transports);
3090 fclose (temp_file_handle);
3093 != GNUNET_CONFIGURATION_get_value_string (
3094 pg->peers[pg_iter]. daemon->cfg,
3095 "PATHS", "SERVICEHOME",
3096 &temp_service_path))
3099 GNUNET_ERROR_TYPE_WARNING,
3101 ("No `%s' specified in peer configuration in section `%s', cannot copy friends file!\n"),
3102 "SERVICEHOME", "PATHS");
3103 if (UNLINK (mytemp) != 0)
3104 GNUNET_log_strerror_file (GNUNET_ERROR_TYPE_WARNING, "unlink",
3106 GNUNET_free (mytemp);
3110 if (pg->peers[pg_iter].daemon->hostname == NULL) /* Local, just copy the file */
3112 GNUNET_asprintf (&arg, "%s/blacklist", temp_service_path);
3113 procarr[pg_iter] = GNUNET_OS_start_process (NULL, NULL, "mv", "mv",
3116 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
3117 _("Copying file with command cp %s %s\n"), mytemp, arg);
3122 else /* Remote, scp the file to the correct place */
3124 if (NULL != pg->peers[pg_iter].daemon->username)
3125 GNUNET_asprintf (&arg, "%s@%s:%s/blacklist",
3126 pg->peers[pg_iter].daemon->username,
3127 pg->peers[pg_iter].daemon->hostname,
3130 GNUNET_asprintf (&arg, "%s:%s/blacklist",
3131 pg->peers[pg_iter].daemon->hostname,
3133 procarr[pg_iter] = GNUNET_OS_start_process (NULL, NULL, "scp", "scp",
3135 GNUNET_assert(procarr[pg_iter] != NULL);
3136 GNUNET_OS_process_wait (procarr[pg_iter]); /* FIXME: add scheduled blacklist file copy that parallelizes file copying! */
3139 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
3140 _("Copying file with command scp %s %s\n"), mytemp,
3145 GNUNET_free (temp_service_path);
3146 GNUNET_free (mytemp);
3150 ret = GNUNET_SYSERR;
3151 while ((count < max_wait) && (ret != GNUNET_OK))
3154 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
3157 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
3158 _("Checking copy status of file %d\n"), pg_iter);
3160 if (procarr[pg_iter] != NULL) /* Check for already completed! */
3162 if (GNUNET_OS_process_status (procarr[pg_iter], &type,
3163 &return_code) != GNUNET_OK)
3165 ret = GNUNET_SYSERR;
3167 else if ((type != GNUNET_OS_PROCESS_EXITED) || (return_code != 0))
3169 ret = GNUNET_SYSERR;
3173 GNUNET_OS_process_close (procarr[pg_iter]);
3174 procarr[pg_iter] = NULL;
3176 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
3177 _("File %d copied\n"), pg_iter);
3183 if (ret == GNUNET_SYSERR)
3185 /* FIXME: why sleep here? -CG */
3191 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
3192 _("Finished copying all blacklist files!\n"));
3194 GNUNET_free (procarr);
3198 /* Forward Declaration */
3200 schedule_connect(void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc);
3203 * Choose a random peer's next connection to create, and
3204 * call schedule_connect to set up the connect task.
3206 * @param ct_ctx the overall connection context
3209 preschedule_connect(struct GNUNET_TESTING_PeerGroup *pg)
3211 struct ConnectTopologyContext *ct_ctx = &pg->ct_ctx;
3212 struct PeerConnection *connection_iter;
3213 struct ConnectContext *connect_context;
3214 uint32_t random_peer;
3216 if (ct_ctx->remaining_connections == 0)
3219 = GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK, pg->total);
3220 while (pg->peers[random_peer].connect_peers_head == NULL)
3221 random_peer = GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK,
3224 connection_iter = pg->peers[random_peer].connect_peers_head;
3225 connect_context = GNUNET_malloc (sizeof (struct ConnectContext));
3226 connect_context->first_index = random_peer;
3227 connect_context->second_index = connection_iter->index;
3228 connect_context->ct_ctx = ct_ctx;
3229 GNUNET_SCHEDULER_add_now (&schedule_connect, connect_context);
3230 GNUNET_CONTAINER_DLL_remove(pg->peers[random_peer].connect_peers_head, pg->peers[random_peer].connect_peers_tail, connection_iter);
3231 GNUNET_free(connection_iter);
3232 ct_ctx->remaining_connections--;
3236 /* Forward declaration */
3237 static void schedule_send_hellos (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc);
3240 * Close connections and free the hello context.
3242 * @param cls the 'struct SendHelloContext *'
3243 * @param tc scheduler context
3246 free_hello_context (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
3248 struct SendHelloContext *send_hello_context = cls;
3249 if (send_hello_context->peer->daemon->server != NULL)
3251 GNUNET_CORE_disconnect(send_hello_context->peer->daemon->server);
3252 send_hello_context->peer->daemon->server = NULL;
3254 if (send_hello_context->peer->daemon->th != NULL)
3256 GNUNET_TRANSPORT_disconnect(send_hello_context->peer->daemon->th);
3257 send_hello_context->peer->daemon->th = NULL;
3259 if (send_hello_context->core_connect_task != GNUNET_SCHEDULER_NO_TASK)
3261 GNUNET_SCHEDULER_cancel(send_hello_context->core_connect_task);
3262 send_hello_context->core_connect_task = GNUNET_SCHEDULER_NO_TASK;
3264 send_hello_context->pg->outstanding_connects--;
3265 GNUNET_free(send_hello_context);
3269 * For peers that haven't yet connected, notify
3270 * the caller that they have failed (timeout).
3272 * @param cls the 'struct SendHelloContext *'
3273 * @param tc scheduler context
3276 notify_remaining_connections_failed (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
3278 struct SendHelloContext *send_hello_context = cls;
3279 struct GNUNET_TESTING_PeerGroup *pg = send_hello_context->pg;
3280 struct PeerConnection *connection;
3282 GNUNET_CORE_disconnect(send_hello_context->peer->daemon->server);
3283 send_hello_context->peer->daemon->server = NULL;
3285 connection = send_hello_context->peer->connect_peers_head;
3287 while (connection != NULL)
3289 if (pg->notify_connection != NULL)
3291 pg->notify_connection(pg->notify_connection_cls,
3292 &send_hello_context->peer->daemon->id,
3293 &pg->peers[connection->index].daemon->id,
3295 send_hello_context->peer->daemon->cfg,
3296 pg->peers[connection->index].daemon->cfg,
3297 send_hello_context->peer->daemon,
3298 pg->peers[connection->index].daemon,
3299 "Peers failed to connect (timeout)");
3301 GNUNET_CONTAINER_DLL_remove(send_hello_context->peer->connect_peers_head, send_hello_context->peer->connect_peers_tail, connection);
3302 GNUNET_free(connection);
3303 connection = connection->next;
3305 GNUNET_SCHEDULER_add_now(&free_hello_context, send_hello_context);
3307 other_peer = &pg->peers[connection->index];
3312 * For peers that haven't yet connected, send
3313 * CORE connect requests.
3315 * @param cls the 'struct SendHelloContext *'
3316 * @param tc scheduler context
3319 send_core_connect_requests (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
3321 struct SendHelloContext *send_hello_context = cls;
3322 struct PeerConnection *conn;
3323 GNUNET_assert(send_hello_context->peer->daemon->server != NULL);
3325 send_hello_context->core_connect_task = GNUNET_SCHEDULER_NO_TASK;
3327 send_hello_context->connect_attempts++;
3328 if (send_hello_context->connect_attempts < send_hello_context->pg->ct_ctx.connect_attempts)
3330 conn = send_hello_context->peer->connect_peers_head;
3331 while (conn != NULL)
3333 GNUNET_CORE_peer_request_connect(send_hello_context->peer->daemon->server,
3334 &send_hello_context->pg->peers[conn->index].daemon->id,
3339 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) ,
3340 &send_core_connect_requests,
3341 send_hello_context);
3345 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Timeout before all connections created, marking rest as failed!\n");
3346 GNUNET_SCHEDULER_add_now(¬ify_remaining_connections_failed, send_hello_context);
3352 * Success, connection is up. Signal client our success.
3354 * @param cls our "struct SendHelloContext"
3355 * @param peer identity of the peer that has connected
3356 * @param atsi performance information
3358 * FIXME: remove peers from BOTH lists, call notify twice, should
3359 * double the speed of connections as long as the list iteration
3360 * doesn't take too long!
3363 core_connect_notify (void *cls,
3364 const struct GNUNET_PeerIdentity *peer,
3365 const struct GNUNET_TRANSPORT_ATS_Information *atsi)
3367 struct SendHelloContext *send_hello_context = cls;
3368 struct PeerConnection *connection;
3369 struct GNUNET_TESTING_PeerGroup *pg = send_hello_context->pg;
3371 struct PeerData *other_peer;
3374 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
3375 "Connected peer %s to peer %s\n",
3376 ctx->d1->shortname, GNUNET_i2s(peer));
3379 if (0 == memcmp(&send_hello_context->peer->daemon->id, peer, sizeof(struct GNUNET_PeerIdentity)))
3382 connection = send_hello_context->peer->connect_peers_head;
3387 while ((connection != NULL) &&
3388 (0 != memcmp(&pg->peers[connection->index].daemon->id, peer, sizeof(struct GNUNET_PeerIdentity))))
3390 connection = connection->next;
3393 if (connection == NULL)
3395 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);
3400 other_peer = &pg->peers[connection->index];
3402 if (pg->notify_connection != NULL)
3404 pg->notify_connection(pg->notify_connection_cls,
3405 &send_hello_context->peer->daemon->id,
3408 send_hello_context->peer->daemon->cfg,
3409 pg->peers[connection->index].daemon->cfg,
3410 send_hello_context->peer->daemon,
3411 pg->peers[connection->index].daemon,
3414 GNUNET_CONTAINER_DLL_remove(send_hello_context->peer->connect_peers_head, send_hello_context->peer->connect_peers_tail, connection);
3415 GNUNET_free(connection);
3419 /* Notify of reverse connection and remove from other peers list of outstanding */
3420 if (other_peer != NULL)
3422 connection = other_peer->connect_peers_head;
3423 while ((connection != NULL) &&
3424 (0 != memcmp(&send_hello_context->peer->daemon->id, &pg->peers[connection->index].daemon->id, sizeof(struct GNUNET_PeerIdentity))))
3426 connection = connection->next;
3428 if (connection != NULL)
3430 if (pg->notify_connection != NULL)
3432 pg->notify_connection(pg->notify_connection_cls,
3434 &send_hello_context->peer->daemon->id,
3436 pg->peers[connection->index].daemon->cfg,
3437 send_hello_context->peer->daemon->cfg,
3438 pg->peers[connection->index].daemon,
3439 send_hello_context->peer->daemon,
3443 GNUNET_CONTAINER_DLL_remove(other_peer->connect_peers_head, other_peer->connect_peers_tail, connection);
3444 GNUNET_free(connection);
3449 if (send_hello_context->peer->connect_peers_head == NULL)
3451 GNUNET_SCHEDULER_add_now(&free_hello_context, send_hello_context);
3456 * Notify of a successful connection to the core service.
3458 * @param cls a struct SendHelloContext *
3459 * @param server handle to the core service
3460 * @param my_identity the peer identity of this peer
3461 * @param publicKey the public key of the peer
3464 core_init (void *cls,
3465 struct GNUNET_CORE_Handle * server,
3466 const struct GNUNET_PeerIdentity *
3469 GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded *
3472 struct SendHelloContext *send_hello_context = cls;
3473 send_hello_context->core_ready = GNUNET_YES;
3477 * Function called once a hello has been sent
3478 * to the transport, move on to the next one
3479 * or go away forever.
3481 * @param cls the 'struct SendHelloContext *'
3482 * @param tc scheduler context
3485 hello_sent_callback (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
3487 struct SendHelloContext *send_hello_context = cls;
3488 //unsigned int pg_iter;
3489 if ( (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN) != 0)
3491 GNUNET_free(send_hello_context);
3495 send_hello_context->pg->remaining_hellos--;
3497 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Sent HELLO, have %d remaining!\n", send_hello_context->pg->remaining_hellos);
3499 if (send_hello_context->peer_pos == NULL) /* All HELLOs (for this peer!) have been transmitted! */
3502 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "All hellos for this peer sent, disconnecting transport!\n");
3504 GNUNET_assert(send_hello_context->peer->daemon->th != NULL);
3505 GNUNET_TRANSPORT_disconnect(send_hello_context->peer->daemon->th);
3506 send_hello_context->peer->daemon->th = NULL;
3508 /*if (send_hello_context->pg->remaining_hellos == 0)
3510 for (pg_iter = 0; pg_iter < send_hello_context->pg->max_outstanding_connections; pg_iter++)
3512 preschedule_connect(&send_hello_context->pg->ct_ctx);
3516 GNUNET_assert (send_hello_context->peer->daemon->server == NULL);
3517 send_hello_context->peer->daemon->server = GNUNET_CORE_connect(send_hello_context->peer->cfg,
3521 &core_connect_notify,
3528 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),
3529 &send_core_connect_requests,
3530 send_hello_context);
3533 GNUNET_SCHEDULER_add_now(&schedule_send_hellos, send_hello_context);
3537 * Connect to a peer, give it all the HELLO's of those peers
3538 * we will later ask it to connect to.
3540 * @param ct_ctx the overall connection context
3542 static void schedule_send_hellos (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
3544 struct SendHelloContext *send_hello_context = cls;
3545 struct GNUNET_TESTING_PeerGroup *pg = send_hello_context->pg;
3547 if ( (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN) != 0)
3549 GNUNET_free(send_hello_context);
3553 GNUNET_assert(send_hello_context->peer_pos != NULL); /* All of the HELLO sends to be scheduled have been scheduled! */
3555 if (((send_hello_context->peer->daemon->th == NULL) &&
3556 (pg->outstanding_connects > pg->max_outstanding_connections)) ||
3557 (pg->stop_connects == GNUNET_YES))
3559 #if VERBOSE_TESTING > 2
3560 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
3562 ("Delaying connect, we have too many outstanding connections!\n"));
3564 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply
3565 (GNUNET_TIME_UNIT_MILLISECONDS, 100),
3566 &schedule_send_hellos, send_hello_context);
3570 #if VERBOSE_TESTING > 2
3571 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
3572 _("Creating connection, outstanding_connections is %d\n"),
3573 outstanding_connects);
3575 if (send_hello_context->peer->daemon->th == NULL)
3577 pg->outstanding_connects++; /* Actual TRANSPORT, CORE connections! */
3578 send_hello_context->peer->daemon->th
3579 = GNUNET_TRANSPORT_connect (send_hello_context->peer->cfg, NULL,
3580 send_hello_context, NULL, NULL, NULL);
3583 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
3584 _("Offering Hello of peer %s to peer %s\n"),
3585 send_hello_context->peer->daemon->shortname, pg->peers[send_hello_context->peer_pos->index].daemon->shortname);
3587 GNUNET_TRANSPORT_offer_hello(send_hello_context->peer->daemon->th,
3588 (const struct GNUNET_MessageHeader *)pg->peers[send_hello_context->peer_pos->index].daemon->hello,
3589 &hello_sent_callback,
3590 send_hello_context);
3591 send_hello_context->peer_pos = send_hello_context->peer_pos->next;
3592 GNUNET_assert(send_hello_context->peer->daemon->th != NULL);
3598 * Internal notification of a connection, kept so that we can ensure some connections
3599 * happen instead of flooding all testing daemons with requests to connect.
3602 internal_connect_notify(void *cls, const struct GNUNET_PeerIdentity *first,
3603 const struct GNUNET_PeerIdentity *second,
3605 const struct GNUNET_CONFIGURATION_Handle *first_cfg,
3606 const struct GNUNET_CONFIGURATION_Handle *second_cfg,
3607 struct GNUNET_TESTING_Daemon *first_daemon,
3608 struct GNUNET_TESTING_Daemon *second_daemon,
3611 struct ConnectContext *connect_ctx = cls;
3612 struct ConnectTopologyContext *ct_ctx = connect_ctx->ct_ctx;
3613 struct GNUNET_TESTING_PeerGroup *pg = ct_ctx->pg;
3614 struct PeerConnection *connection;
3616 GNUNET_assert (0 < pg->outstanding_connects);
3617 pg->outstanding_connects--;
3620 * Check whether the inverse connection has been scheduled yet,
3621 * if not, we can remove it from the other peers list and avoid
3622 * even trying to connect them again!
3624 connection = pg->peers[connect_ctx->second_index].connect_peers_head;
3629 while ((connection != NULL) && (0
3630 != memcmp (first, &pg->peers[connection->index].daemon->id,
3631 sizeof(struct GNUNET_PeerIdentity))))
3633 connection = connection->next;
3636 if (connection != NULL) /* Can safely remove! */
3638 GNUNET_assert (0 < ct_ctx->remaining_connections);
3639 ct_ctx->remaining_connections--;
3640 if (pg->notify_connection != NULL) /* Notify of reverse connection */
3641 pg->notify_connection (pg->notify_connection_cls, second, first,
3642 distance, second_cfg, first_cfg, second_daemon,
3643 first_daemon, emsg);
3645 GNUNET_CONTAINER_DLL_remove(pg->peers[connect_ctx->second_index].connect_peers_head, pg->peers[connect_ctx->second_index].connect_peers_tail, connection);
3646 GNUNET_free(connection);
3649 if (ct_ctx->remaining_connections == 0)
3651 if (ct_ctx->notify_connections_done != NULL)
3653 ct_ctx->notify_connections_done (ct_ctx->notify_cls, NULL);
3654 ct_ctx->notify_connections_done = NULL;
3658 preschedule_connect (pg);
3660 if (pg->notify_connection != NULL)
3661 pg->notify_connection (pg->notify_connection_cls, first, second, distance,
3662 first_cfg, second_cfg, first_daemon, second_daemon,
3665 GNUNET_free(connect_ctx);
3669 * Either delay a connection (because there are too many outstanding)
3670 * or schedule it for right now.
3672 * @param cls a connection context
3673 * @param tc the task runtime context
3676 schedule_connect(void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
3678 struct ConnectContext *connect_context = cls;
3679 struct GNUNET_TESTING_PeerGroup *pg = connect_context->ct_ctx->pg;
3681 if ( (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN) != 0)
3684 if ((pg->outstanding_connects > pg->max_outstanding_connections)
3685 || (pg->stop_connects == GNUNET_YES))
3688 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
3690 ("Delaying connect, we have too many outstanding connections!\n"));
3692 GNUNET_SCHEDULER_add_delayed (
3693 GNUNET_TIME_relative_multiply (
3694 GNUNET_TIME_UNIT_MILLISECONDS,
3696 &schedule_connect, connect_context);
3701 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
3702 _("Creating connection, outstanding_connections is %d (max %d)\n"),
3703 pg->outstanding_connects, pg->max_outstanding_connections);
3705 pg->outstanding_connects++;
3706 pg->total_connects_scheduled++;
3707 GNUNET_TESTING_daemons_connect (
3708 pg->peers[connect_context->first_index].daemon,
3709 pg->peers[connect_context->second_index].daemon,
3710 connect_context->ct_ctx->connect_timeout,
3711 connect_context->ct_ctx->connect_attempts,
3717 &internal_connect_notify, connect_context); /* FIXME: free connect context! */
3723 * Iterator for actually scheduling connections to be created
3724 * between two peers.
3726 * @param cls closure, a GNUNET_TESTING_Daemon
3727 * @param key the key the second Daemon was stored under
3728 * @param value the GNUNET_TESTING_Daemon that the first is to connect to
3730 * @return GNUNET_YES to continue iteration
3733 connect_iterator (void *cls, const GNUNET_HashCode * key, void *value)
3735 struct ConnectTopologyContext *ct_ctx = cls;
3736 struct PeerData *first = ct_ctx->first;
3737 struct GNUNET_TESTING_Daemon *second = value;
3738 struct ConnectContext *connect_context;
3740 connect_context = GNUNET_malloc (sizeof (struct ConnectContext));
3741 connect_context->first = first->daemon;
3742 connect_context->second = second;
3743 connect_context->ct_ctx = ct_ctx;
3744 GNUNET_SCHEDULER_add_now (&schedule_connect, connect_context);
3752 * Iterator for copying all entries in the allowed hashmap to the
3755 * @param cls closure, a GNUNET_TESTING_Daemon
3756 * @param key the key the second Daemon was stored under
3757 * @param value the GNUNET_TESTING_Daemon that the first is to connect to
3759 * @return GNUNET_YES to continue iteration
3762 copy_topology_iterator (void *cls, const GNUNET_HashCode * key, void *value)
3764 struct PeerData *first = cls;
3766 GNUNET_assert (GNUNET_OK ==
3767 GNUNET_CONTAINER_multihashmap_put (first->connect_peers, key,
3769 GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY));
3776 * Make the peers to connect the same as those that are allowed to be
3779 * @param pg the peer group
3782 copy_allowed_topology(struct GNUNET_TESTING_PeerGroup *pg)
3784 unsigned int pg_iter;
3788 struct PeerConnection *iter;
3792 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
3795 iter = pg->peers[pg_iter].allowed_peers_head;
3796 while (iter != NULL)
3798 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
3799 "Creating connection between %d and %d\n", pg_iter,
3801 total += add_connections (pg, pg_iter, iter->index, CONNECT,
3803 //total += add_actual_connections(pg, pg_iter, iter->index);
3808 GNUNET_CONTAINER_multihashmap_iterate (pg->
3809 peers[pg_iter].allowed_peers,
3810 ©_topology_iterator,
3811 &pg->peers[pg_iter]);
3813 if (GNUNET_SYSERR == ret)
3814 return GNUNET_SYSERR;
3816 total = total + ret;
3823 * Connect the topology as specified by the PeerConnection's
3824 * of each peer in the peer group
3826 * @param pg the peer group we are dealing with
3827 * @param connect_timeout how long try connecting two peers
3828 * @param connect_attempts how many times (max) to attempt
3829 * @param notify_callback callback to notify when finished
3830 * @param notify_cls closure for notify callback
3832 * @return the number of connections that will be attempted
3835 connect_topology(struct GNUNET_TESTING_PeerGroup *pg,
3836 struct GNUNET_TIME_Relative connect_timeout,
3837 unsigned int connect_attempts,
3838 GNUNET_TESTING_NotifyCompletion notify_callback,
3841 unsigned int pg_iter;
3845 struct PeerConnection *connection_iter;
3848 struct SendHelloContext *send_hello_context;
3852 pg->ct_ctx.notify_connections_done = notify_callback;
3853 pg->ct_ctx.notify_cls = notify_cls;
3856 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
3859 connection_iter = pg->peers[pg_iter].connect_peers_head;
3860 while (connection_iter != NULL)
3862 connection_iter = connection_iter->next;
3867 GNUNET_CONTAINER_multihashmap_size (pg->peers[pg_iter].connect_peers);
3874 pg->ct_ctx.connect_timeout = connect_timeout;
3875 pg->ct_ctx.connect_attempts = connect_attempts;
3876 pg->ct_ctx.remaining_connections = total;
3879 /* First give all peers the HELLO's of other peers (connect to first peer's transport service, give HELLO's of other peers, continue...) */
3880 pg->remaining_hellos = total;
3881 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
3883 send_hello_context = GNUNET_malloc(sizeof(struct SendHelloContext));
3884 send_hello_context->peer = &pg->peers[pg_iter];
3885 send_hello_context->peer_pos = pg->peers[pg_iter].connect_peers_head;
3886 send_hello_context->pg = pg;
3887 GNUNET_SCHEDULER_add_now(&schedule_send_hellos, send_hello_context);
3890 for (pg_iter = 0; pg_iter < pg->max_outstanding_connections; pg_iter++)
3892 preschedule_connect (pg);
3900 * Takes a peer group and creates a topology based on the
3901 * one specified. Creates a topology means generates friend
3902 * files for the peers so they can only connect to those allowed
3903 * by the topology. This will only have an effect once peers
3904 * are started if the FRIENDS_ONLY option is set in the base
3905 * config. Also takes an optional restrict topology which
3906 * disallows connections based on particular transports
3907 * UNLESS they are specified in the restricted topology.
3909 * @param pg the peer group struct representing the running peers
3910 * @param topology which topology to connect the peers in
3911 * @param restrict_topology disallow restrict_transports transport
3912 * connections to peers NOT in this topology
3913 * use GNUNET_TESTING_TOPOLOGY_NONE for no restrictions
3914 * @param restrict_transports space delimited list of transports to blacklist
3915 * to create restricted topology
3917 * @return the maximum number of connections were all allowed peers
3918 * connected to each other
3921 GNUNET_TESTING_create_topology(struct GNUNET_TESTING_PeerGroup *pg,
3922 enum GNUNET_TESTING_Topology topology,
3923 enum GNUNET_TESTING_Topology restrict_topology,
3924 const char *restrict_transports)
3928 unsigned int num_connections;
3929 int unblacklisted_connections;
3931 struct PeerConnection *conn_iter;
3932 struct PeerConnection *temp_conn;
3937 for (i = 0; i < pg->total; i++)
3939 pg->peers[i].allowed_peers =
3940 GNUNET_CONTAINER_multihashmap_create (100);
3941 pg->peers[i].connect_peers =
3942 GNUNET_CONTAINER_multihashmap_create (100);
3943 pg->peers[i].blacklisted_peers =
3944 GNUNET_CONTAINER_multihashmap_create (100);
3945 pg->peers[i].pg = pg;
3951 case GNUNET_TESTING_TOPOLOGY_CLIQUE:
3953 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, _("Creating clique topology\n"));
3955 num_connections = create_clique (pg, &add_connections, ALLOWED, GNUNET_NO);
3957 case GNUNET_TESTING_TOPOLOGY_SMALL_WORLD_RING:
3959 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
3960 _("Creating small world (ring) topology\n"));
3962 num_connections = create_small_world_ring (pg, &add_connections, ALLOWED);
3964 case GNUNET_TESTING_TOPOLOGY_SMALL_WORLD:
3966 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
3967 _("Creating small world (2d-torus) topology\n"));
3969 num_connections = create_small_world (pg, &add_connections, ALLOWED);
3971 case GNUNET_TESTING_TOPOLOGY_RING:
3973 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, _("Creating ring topology\n"));
3975 num_connections = create_ring (pg, &add_connections, ALLOWED);
3977 case GNUNET_TESTING_TOPOLOGY_2D_TORUS:
3979 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, _("Creating 2d torus topology\n"));
3981 num_connections = create_2d_torus (pg, &add_connections, ALLOWED);
3983 case GNUNET_TESTING_TOPOLOGY_ERDOS_RENYI:
3985 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
3986 _("Creating Erdos-Renyi topology\n"));
3988 num_connections = create_erdos_renyi (pg, &add_connections, ALLOWED);
3990 case GNUNET_TESTING_TOPOLOGY_INTERNAT:
3992 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, _("Creating InterNAT topology\n"));
3994 num_connections = create_nated_internet (pg, &add_connections, ALLOWED);
3996 case GNUNET_TESTING_TOPOLOGY_SCALE_FREE:
3998 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
3999 _("Creating Scale Free topology\n"));
4001 num_connections = create_scale_free (pg, &add_connections, ALLOWED);
4003 case GNUNET_TESTING_TOPOLOGY_LINE:
4005 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
4006 _("Creating straight line topology\n"));
4008 num_connections = create_line (pg, &add_connections, ALLOWED);
4010 case GNUNET_TESTING_TOPOLOGY_FROM_FILE:
4012 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
4013 _("Creating topology from file!\n"));
4015 if (GNUNET_OK == GNUNET_CONFIGURATION_get_value_string (pg->cfg, "testing",
4018 num_connections = create_from_file (pg, filename, &add_connections,
4023 GNUNET_ERROR_TYPE_WARNING,
4024 "Missing configuration option TESTING:TOPOLOGY_FILE for creating topology from file!\n");
4025 num_connections = 0;
4028 case GNUNET_TESTING_TOPOLOGY_NONE:
4030 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
4032 ("Creating no allowed topology (all peers can connect at core level)\n"));
4034 num_connections = pg->total * pg->total; /* Clique is allowed! */
4037 num_connections = 0;
4041 if (GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno (pg->cfg, "TESTING",
4044 ret = create_and_copy_friend_files (pg);
4045 if (ret != GNUNET_OK)
4048 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
4049 _("Failed during friend file copying!\n"));
4051 return GNUNET_SYSERR;
4056 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
4057 _("Friend files created/copied successfully!\n"));
4062 /* Use the create clique method to initially set all connections as blacklisted. */
4063 if ((restrict_topology != GNUNET_TESTING_TOPOLOGY_NONE) && (restrict_topology
4064 != GNUNET_TESTING_TOPOLOGY_FROM_FILE))
4065 create_clique (pg, &add_connections, BLACKLIST, GNUNET_NO);
4067 return num_connections;
4069 unblacklisted_connections = 0;
4070 /* Un-blacklist connections as per the topology specified */
4071 switch (restrict_topology)
4073 case GNUNET_TESTING_TOPOLOGY_CLIQUE:
4075 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
4076 _("Blacklisting all but clique topology\n"));
4078 unblacklisted_connections = create_clique (pg, &remove_connections,
4079 BLACKLIST, GNUNET_NO);
4081 case GNUNET_TESTING_TOPOLOGY_SMALL_WORLD_RING:
4083 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
4084 _("Blacklisting all but small world (ring) topology\n"));
4086 unblacklisted_connections = create_small_world_ring (pg,
4087 &remove_connections,
4090 case GNUNET_TESTING_TOPOLOGY_SMALL_WORLD:
4092 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
4094 ("Blacklisting all but small world (2d-torus) topology\n"));
4096 unblacklisted_connections = create_small_world (pg, &remove_connections,
4099 case GNUNET_TESTING_TOPOLOGY_RING:
4101 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
4102 _("Blacklisting all but ring topology\n"));
4104 unblacklisted_connections
4105 = create_ring (pg, &remove_connections, BLACKLIST);
4107 case GNUNET_TESTING_TOPOLOGY_2D_TORUS:
4109 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
4110 _("Blacklisting all but 2d torus topology\n"));
4112 unblacklisted_connections = create_2d_torus (pg, &remove_connections,
4115 case GNUNET_TESTING_TOPOLOGY_ERDOS_RENYI:
4117 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
4118 _("Blacklisting all but Erdos-Renyi topology\n"));
4120 unblacklisted_connections = create_erdos_renyi (pg, &remove_connections,
4123 case GNUNET_TESTING_TOPOLOGY_INTERNAT:
4125 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
4126 _("Blacklisting all but InterNAT topology\n"));
4130 for (off = 0; off < pg->total; off++)
4132 conn_iter = pg->peers[off].allowed_peers_head;
4133 while (conn_iter != NULL)
4135 temp_conn = conn_iter->next;
4136 GNUNET_free(conn_iter);
4137 conn_iter = temp_conn;
4139 pg->peers[off].allowed_peers_head = NULL;
4140 pg->peers[off].allowed_peers_tail = NULL;
4142 conn_iter = pg->peers[off].connect_peers_head;
4143 while (conn_iter != NULL)
4145 temp_conn = conn_iter->next;
4146 GNUNET_free(conn_iter);
4147 conn_iter = temp_conn;
4149 pg->peers[off].connect_peers_head = NULL;
4150 pg->peers[off].connect_peers_tail = NULL;
4152 unblacklisted_connections
4153 = create_nated_internet_copy (pg, &remove_connections, BLACKLIST);
4155 unblacklisted_connections =
4156 create_nated_internet (pg, &remove_connections, BLACKLIST);
4160 case GNUNET_TESTING_TOPOLOGY_SCALE_FREE:
4162 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
4163 _("Blacklisting all but Scale Free topology\n"));
4165 unblacklisted_connections = create_scale_free (pg, &remove_connections,
4168 case GNUNET_TESTING_TOPOLOGY_LINE:
4170 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
4171 _("Blacklisting all but straight line topology\n"));
4173 unblacklisted_connections
4174 = create_line (pg, &remove_connections, BLACKLIST);
4179 if ((unblacklisted_connections > 0) && (restrict_transports != NULL))
4181 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Creating blacklist with `%s'\n",
4182 restrict_transports);
4183 ret = create_and_copy_blacklist_files (pg, restrict_transports);
4184 if (ret != GNUNET_OK)
4187 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
4188 _("Failed during blacklist file copying!\n"));
4195 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
4196 _("Blacklist files created/copied successfully!\n"));
4200 return num_connections;
4205 * Iterator for choosing random peers to connect.
4207 * @param cls closure, a RandomContext
4208 * @param key the key the second Daemon was stored under
4209 * @param value the GNUNET_TESTING_Daemon that the first is to connect to
4211 * @return GNUNET_YES to continue iteration
4214 random_connect_iterator (void *cls, const GNUNET_HashCode * key, void *value)
4216 struct RandomContext *random_ctx = cls;
4217 double random_number;
4218 uint32_t second_pos;
4219 GNUNET_HashCode first_hash;
4222 GNUNET_CRYPTO_random_u64 (GNUNET_CRYPTO_QUALITY_WEAK,
4223 UINT64_MAX)) / ((double) UINT64_MAX);
4224 if (random_number < random_ctx->percentage)
4226 GNUNET_assert (GNUNET_OK ==
4227 GNUNET_CONTAINER_multihashmap_put (random_ctx->
4228 first->connect_peers_working_set,
4230 GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY));
4233 /* Now we have considered this particular connection, remove it from the second peer so it's not double counted */
4234 uid_from_hash (key, &second_pos);
4235 hash_from_uid (random_ctx->first_uid, &first_hash);
4236 GNUNET_assert (random_ctx->pg->total > second_pos);
4237 GNUNET_assert (GNUNET_YES ==
4238 GNUNET_CONTAINER_multihashmap_remove (random_ctx->
4240 [second_pos].connect_peers,
4249 * Iterator for adding at least X peers to a peers connection set.
4251 * @param cls closure, MinimumContext
4252 * @param key the key the second Daemon was stored under
4253 * @param value the GNUNET_TESTING_Daemon that the first is to connect to
4255 * @return GNUNET_YES to continue iteration
4258 minimum_connect_iterator (void *cls, const GNUNET_HashCode * key, void *value)
4260 struct MinimumContext *min_ctx = cls;
4261 uint32_t second_pos;
4262 GNUNET_HashCode first_hash;
4265 if (GNUNET_CONTAINER_multihashmap_size
4266 (min_ctx->first->connect_peers_working_set) < min_ctx->num_to_add)
4268 for (i = 0; i < min_ctx->num_to_add; i++)
4270 if (min_ctx->pg_array[i] == min_ctx->current)
4272 GNUNET_assert (GNUNET_OK ==
4273 GNUNET_CONTAINER_multihashmap_put
4274 (min_ctx->first->connect_peers_working_set, key,
4276 GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY));
4277 uid_from_hash (key, &second_pos);
4278 hash_from_uid (min_ctx->first_uid, &first_hash);
4279 GNUNET_assert (min_ctx->pg->total > second_pos);
4280 GNUNET_assert (GNUNET_OK ==
4281 GNUNET_CONTAINER_multihashmap_put (min_ctx->
4283 [second_pos].connect_peers_working_set,
4287 GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY));
4288 /* Now we have added this particular connection, remove it from the second peer's map so it's not double counted */
4289 GNUNET_assert (GNUNET_YES ==
4290 GNUNET_CONTAINER_multihashmap_remove
4291 (min_ctx->pg->peers[second_pos].connect_peers,
4292 &first_hash, min_ctx->first->daemon));
4299 return GNUNET_NO; /* We can stop iterating, we have enough peers! */
4304 * Iterator for adding peers to a connection set based on a depth first search.
4306 * @param cls closure, MinimumContext
4307 * @param key the key the second daemon was stored under
4308 * @param value the GNUNET_TESTING_Daemon that the first is to connect to
4310 * @return GNUNET_YES to continue iteration
4313 dfs_connect_iterator (void *cls, const GNUNET_HashCode * key, void *value)
4315 struct DFSContext *dfs_ctx = cls;
4316 GNUNET_HashCode first_hash;
4318 if (dfs_ctx->current == dfs_ctx->chosen)
4320 GNUNET_assert (GNUNET_OK ==
4321 GNUNET_CONTAINER_multihashmap_put (dfs_ctx->
4322 first->connect_peers_working_set,
4324 GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY));
4325 uid_from_hash (key, &dfs_ctx->second_uid);
4326 hash_from_uid (dfs_ctx->first_uid, &first_hash);
4327 GNUNET_assert (GNUNET_OK ==
4328 GNUNET_CONTAINER_multihashmap_put (dfs_ctx->
4330 [dfs_ctx->second_uid].connect_peers_working_set,
4334 GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY));
4335 GNUNET_assert (GNUNET_YES ==
4336 GNUNET_CONTAINER_multihashmap_remove (dfs_ctx->
4338 [dfs_ctx->second_uid].connect_peers,
4342 /* Can't remove second from first yet because we are currently iterating, hence the return value in the DFSContext! */
4343 return GNUNET_NO; /* We have found our peer, don't iterate more */
4352 * From the set of connections possible, choose percentage percent of connections
4353 * to actually connect.
4355 * @param pg the peergroup we are dealing with
4356 * @param percentage what percent of total connections to make
4359 choose_random_connections(struct GNUNET_TESTING_PeerGroup *pg,
4364 struct PeerConnection *conn_iter;
4365 double random_number;
4367 struct RandomContext random_ctx;
4370 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
4373 conn_iter = pg->peers[pg_iter].connect_peers_head;
4374 while (conn_iter != NULL)
4377 = ((double) GNUNET_CRYPTO_random_u64 (GNUNET_CRYPTO_QUALITY_WEAK,
4379 / ((double) UINT64_MAX);
4380 if (random_number < percentage)
4382 add_connections (pg, pg_iter, conn_iter->index, WORKING_SET,
4385 conn_iter = conn_iter->next;
4388 random_ctx.first_uid = pg_iter;
4389 random_ctx.first = &pg->peers[pg_iter];
4390 random_ctx.percentage = percentage;
4392 pg->peers[pg_iter].connect_peers_working_set
4393 = GNUNET_CONTAINER_multihashmap_create (pg->total);
4394 GNUNET_CONTAINER_multihashmap_iterate (pg->peers[pg_iter].connect_peers,
4395 &random_connect_iterator,
4397 /* Now remove the old connections */
4398 GNUNET_CONTAINER_multihashmap_destroy (pg->
4399 peers[pg_iter].connect_peers);
4400 /* And replace with the random set */
4401 pg->peers[pg_iter].connect_peers
4402 = pg->peers[pg_iter].connect_peers_working_set;
4406 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
4408 conn_iter = pg->peers[pg_iter].connect_peers_head;
4409 while (pg->peers[pg_iter].connect_peers_head != NULL)
4410 remove_connections (pg, pg_iter,
4411 pg->peers[pg_iter].connect_peers_head->index,
4412 CONNECT, GNUNET_YES);
4414 pg->peers[pg_iter].connect_peers_head
4415 = pg->peers[pg_iter].connect_peers_working_set_head;
4416 pg->peers[pg_iter].connect_peers_tail
4417 = pg->peers[pg_iter].connect_peers_working_set_tail;
4418 pg->peers[pg_iter].connect_peers_working_set_head = NULL;
4419 pg->peers[pg_iter].connect_peers_working_set_tail = NULL;
4424 * Count the number of connections in a linked list of connections.
4426 * @param conn_list the connection list to get the count of
4428 * @return the number of elements in the list
4431 count_connections(struct PeerConnection *conn_list)
4433 struct PeerConnection *iter;
4437 while (iter != NULL)
4446 count_workingset_connections(struct GNUNET_TESTING_PeerGroup *pg)
4449 unsigned int pg_iter;
4451 struct PeerConnection *conn_iter;
4455 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
4458 conn_iter = pg->peers[pg_iter].connect_peers_working_set_head;
4459 while (conn_iter != NULL)
4462 conn_iter = conn_iter->next;
4466 GNUNET_CONTAINER_multihashmap_size (pg->
4468 [pg_iter].connect_peers_working_set);
4476 count_allowed_connections(struct GNUNET_TESTING_PeerGroup *pg)
4479 unsigned int pg_iter;
4481 struct PeerConnection *conn_iter;
4485 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
4488 conn_iter = pg->peers[pg_iter].allowed_peers_head;
4489 while (conn_iter != NULL)
4492 conn_iter = conn_iter->next;
4496 GNUNET_CONTAINER_multihashmap_size (pg->
4498 [pg_iter].allowed_peers);
4506 * From the set of connections possible, choose at least num connections per
4509 * @param pg the peergroup we are dealing with
4510 * @param num how many connections at least should each peer have (if possible)?
4513 choose_minimum(struct GNUNET_TESTING_PeerGroup *pg, unsigned int num)
4516 struct MinimumContext minimum_ctx;
4518 struct PeerConnection *conn_iter;
4519 unsigned int temp_list_size;
4522 uint32_t random; /* Random list entry to connect peer to */
4527 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
4530 = count_connections (pg->peers[pg_iter].connect_peers_head);
4531 if (temp_list_size == 0)
4533 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
4534 "Peer %d has 0 connections!?!?\n", pg_iter);
4537 for (i = 0; i < num; i++)
4539 random = GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK,
4541 conn_iter = pg->peers[pg_iter].connect_peers_head;
4542 for (count = 0; count < random; count++)
4543 conn_iter = conn_iter->next;
4544 /* We now have a random connection, connect it! */
4545 GNUNET_assert(conn_iter != NULL);
4546 add_connections (pg, pg_iter, conn_iter->index, WORKING_SET,
4551 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
4553 pg->peers[pg_iter].connect_peers_working_set =
4554 GNUNET_CONTAINER_multihashmap_create (num);
4557 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
4559 minimum_ctx.first_uid = pg_iter;
4560 minimum_ctx.pg_array =
4561 GNUNET_CRYPTO_random_permute (GNUNET_CRYPTO_QUALITY_WEAK,
4562 GNUNET_CONTAINER_multihashmap_size
4563 (pg->peers[pg_iter].connect_peers));
4564 minimum_ctx.first = &pg->peers[pg_iter];
4565 minimum_ctx.pg = pg;
4566 minimum_ctx.num_to_add = num;
4567 minimum_ctx.current = 0;
4568 GNUNET_CONTAINER_multihashmap_iterate (pg->peers[pg_iter].connect_peers,
4569 &minimum_connect_iterator,
4573 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
4575 /* Remove the "old" connections */
4576 GNUNET_CONTAINER_multihashmap_destroy (pg->
4577 peers[pg_iter].connect_peers);
4578 /* And replace with the working set */
4579 pg->peers[pg_iter].connect_peers =
4580 pg->peers[pg_iter].connect_peers_working_set;
4583 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
4585 while (pg->peers[pg_iter].connect_peers_head != NULL)
4587 conn_iter = pg->peers[pg_iter].connect_peers_head;
4588 GNUNET_CONTAINER_DLL_remove(pg->peers[pg_iter].connect_peers_head,
4589 pg->peers[pg_iter].connect_peers_tail,
4591 GNUNET_free(conn_iter);
4592 /*remove_connections(pg, pg_iter, pg->peers[pg_iter].connect_peers_head->index, CONNECT, GNUNET_YES);*/
4595 pg->peers[pg_iter].connect_peers_head
4596 = pg->peers[pg_iter].connect_peers_working_set_head;
4597 pg->peers[pg_iter].connect_peers_tail
4598 = pg->peers[pg_iter].connect_peers_working_set_tail;
4599 pg->peers[pg_iter].connect_peers_working_set_head = NULL;
4600 pg->peers[pg_iter].connect_peers_working_set_tail = NULL;
4605 struct FindClosestContext
4608 * The currently known closest peer.
4610 struct GNUNET_TESTING_Daemon *closest;
4613 * The info for the peer we are adding connections for.
4615 struct PeerData *curr_peer;
4618 * The distance (bits) between the current
4619 * peer and the currently known closest.
4621 unsigned int closest_dist;
4624 * The offset of the closest known peer in
4627 unsigned int closest_num;
4631 * Iterator over hash map entries of the allowed
4632 * peer connections. Find the closest, not already
4633 * connected peer and return it.
4635 * @param cls closure (struct FindClosestContext)
4636 * @param key current key code (hash of offset in pg)
4637 * @param value value in the hash map - a GNUNET_TESTING_Daemon
4638 * @return GNUNET_YES if we should continue to
4643 find_closest_peers (void *cls, const GNUNET_HashCode * key, void *value)
4645 struct FindClosestContext *closest_ctx = cls;
4646 struct GNUNET_TESTING_Daemon *daemon = value;
4648 if (((closest_ctx->closest == NULL) ||
4649 (GNUNET_CRYPTO_hash_matching_bits
4650 (&daemon->id.hashPubKey,
4651 &closest_ctx->curr_peer->daemon->id.hashPubKey) >
4652 closest_ctx->closest_dist))
4654 GNUNET_CONTAINER_multihashmap_contains (closest_ctx->
4655 curr_peer->connect_peers,
4658 closest_ctx->closest_dist =
4659 GNUNET_CRYPTO_hash_matching_bits (&daemon->id.hashPubKey,
4660 &closest_ctx->curr_peer->daemon->
4662 closest_ctx->closest = daemon;
4663 uid_from_hash (key, &closest_ctx->closest_num);
4669 * From the set of connections possible, choose at num connections per
4670 * peer based on depth which are closest out of those allowed. Guaranteed
4671 * to add num peers to connect to, provided there are that many peers
4672 * in the underlay topology to connect to.
4674 * @param pg the peergroup we are dealing with
4675 * @param num how many connections at least should each peer have (if possible)?
4676 * @param proc processor to actually add the connections
4677 * @param list the peer list to use
4680 add_closest (struct GNUNET_TESTING_PeerGroup *pg, unsigned int num,
4681 GNUNET_TESTING_ConnectionProcessor proc, enum PeerLists list)
4686 struct FindClosestContext closest_ctx;
4691 for (i = 0; i < num; i++) /* Each time find a closest peer (from those available) */
4693 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
4695 closest_ctx.curr_peer = &pg->peers[pg_iter];
4696 closest_ctx.closest = NULL;
4697 closest_ctx.closest_dist = 0;
4698 closest_ctx.closest_num = 0;
4699 GNUNET_CONTAINER_multihashmap_iterate (pg->
4700 peers[pg_iter].allowed_peers,
4701 &find_closest_peers,
4703 if (closest_ctx.closest != NULL)
4705 GNUNET_assert (closest_ctx.closest_num < pg->total);
4706 proc (pg, pg_iter, closest_ctx.closest_num, list);
4714 * From the set of connections possible, choose at least num connections per
4715 * peer based on depth first traversal of peer connections. If DFS leaves
4716 * peers unconnected, ensure those peers get connections.
4718 * @param pg the peergroup we are dealing with
4719 * @param num how many connections at least should each peer have (if possible)?
4722 perform_dfs(struct GNUNET_TESTING_PeerGroup *pg, unsigned int num)
4726 uint32_t starting_peer;
4727 uint32_t least_connections;
4728 uint32_t random_connection;
4730 unsigned int temp_count;
4731 struct PeerConnection *peer_iter;
4733 struct DFSContext dfs_ctx;
4734 GNUNET_HashCode second_hash;
4740 while ((count_workingset_connections (pg) < num * pg->total)
4741 && (count_allowed_connections (pg) > 0))
4743 if (dfs_count % pg->total == 0) /* Restart the DFS at some weakly connected peer */
4745 least_connections = -1; /* Set to very high number */
4746 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
4749 = count_connections (
4750 pg->peers[pg_iter].connect_peers_working_set_head);
4751 if (temp_count < least_connections)
4753 starting_peer = pg_iter;
4754 least_connections = temp_count;
4760 = count_connections (pg->peers[starting_peer].connect_peers_head);
4761 if (temp_count == 0)
4762 continue; /* FIXME: infinite loop? */
4764 random_connection = GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK,
4767 peer_iter = pg->peers[starting_peer].connect_peers_head;
4768 while (temp_count < random_connection)
4770 peer_iter = peer_iter->next;
4773 GNUNET_assert(peer_iter != NULL);
4774 add_connections (pg, starting_peer, peer_iter->index, WORKING_SET,
4776 remove_connections (pg, starting_peer, peer_iter->index, CONNECT,
4778 starting_peer = peer_iter->index;
4783 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
4785 pg->peers[pg_iter].connect_peers_working_set =
4786 GNUNET_CONTAINER_multihashmap_create (num);
4791 while ((count_workingset_connections (pg) < num * pg->total)
4792 && (count_allowed_connections (pg) > 0))
4794 if (dfs_count % pg->total == 0) /* Restart the DFS at some weakly connected peer */
4796 least_connections = -1; /* Set to very high number */
4797 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
4799 if (GNUNET_CONTAINER_multihashmap_size
4800 (pg->peers[pg_iter].connect_peers_working_set) <
4803 starting_peer = pg_iter;
4805 GNUNET_CONTAINER_multihashmap_size (pg->
4807 [pg_iter].connect_peers_working_set);
4812 if (GNUNET_CONTAINER_multihashmap_size (pg->peers[starting_peer].connect_peers) == 0) /* Ensure there is at least one peer left to connect! */
4818 /* Choose a random peer from the chosen peers set of connections to add */
4820 GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK,
4821 GNUNET_CONTAINER_multihashmap_size
4822 (pg->peers[starting_peer].connect_peers));
4823 dfs_ctx.first_uid = starting_peer;
4824 dfs_ctx.first = &pg->peers[starting_peer];
4826 dfs_ctx.current = 0;
4828 GNUNET_CONTAINER_multihashmap_iterate (pg->
4830 [starting_peer].connect_peers,
4831 &dfs_connect_iterator, &dfs_ctx);
4832 /* Remove the second from the first, since we will be continuing the search and may encounter the first peer again! */
4833 hash_from_uid (dfs_ctx.second_uid, &second_hash);
4834 GNUNET_assert (GNUNET_YES ==
4835 GNUNET_CONTAINER_multihashmap_remove (pg->peers
4836 [starting_peer].connect_peers,
4840 [dfs_ctx.second_uid].daemon));
4841 starting_peer = dfs_ctx.second_uid;
4844 for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
4846 /* Remove the "old" connections */
4847 GNUNET_CONTAINER_multihashmap_destroy (pg->
4848 peers[pg_iter].connect_peers);
4849 /* And replace with the working set */
4850 pg->peers[pg_iter].connect_peers =
4851 pg->peers[pg_iter].connect_peers_working_set;
4857 * Internal callback for topology information for a particular peer.
4860 internal_topology_callback(void *cls, const struct GNUNET_PeerIdentity *peer,
4861 const struct GNUNET_TRANSPORT_ATS_Information *atsi)
4863 struct CoreContext *core_ctx = cls;
4864 struct TopologyIterateContext *iter_ctx = core_ctx->iter_context;
4866 if (peer == NULL) /* Either finished, or something went wrong */
4868 iter_ctx->completed++;
4869 iter_ctx->connected--;
4870 /* One core context allocated per iteration, must free! */
4871 GNUNET_free (core_ctx);
4875 iter_ctx->topology_cb (iter_ctx->cls, &core_ctx->daemon->id, peer, NULL);
4878 if (iter_ctx->completed == iter_ctx->total)
4880 iter_ctx->topology_cb (iter_ctx->cls, NULL, NULL, NULL);
4881 /* Once all are done, free the iteration context */
4882 GNUNET_free (iter_ctx);
4887 * Check running topology iteration tasks, if below max start a new one, otherwise
4888 * schedule for some time in the future.
4891 schedule_get_topology(void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
4893 struct CoreContext *core_context = cls;
4894 struct TopologyIterateContext *topology_context =
4895 (struct TopologyIterateContext *) core_context->iter_context;
4896 if ( (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN) != 0)
4899 if (topology_context->connected
4900 > topology_context->pg->max_outstanding_connections)
4902 #if VERBOSE_TESTING > 2
4903 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
4905 ("Delaying connect, we have too many outstanding connections!\n"));
4907 GNUNET_SCHEDULER_add_delayed (
4908 GNUNET_TIME_relative_multiply (
4909 GNUNET_TIME_UNIT_MILLISECONDS,
4911 &schedule_get_topology, core_context);
4915 #if VERBOSE_TESTING > 2
4916 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
4917 _("Creating connection, outstanding_connections is %d\n"),
4918 outstanding_connects);
4920 topology_context->connected++;
4922 if (GNUNET_OK != GNUNET_CORE_iterate_peers (core_context->daemon->cfg,
4923 &internal_topology_callback,
4926 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Topology iteration failed.\n");
4927 internal_topology_callback (core_context, NULL, NULL);
4933 * Iterate over all (running) peers in the peer group, retrieve
4934 * all connections that each currently has.
4937 GNUNET_TESTING_get_topology(struct GNUNET_TESTING_PeerGroup *pg,
4938 GNUNET_TESTING_NotifyTopology cb, void *cls)
4940 struct TopologyIterateContext *topology_context;
4941 struct CoreContext *core_ctx;
4943 unsigned int total_count;
4945 /* Allocate a single topology iteration context */
4946 topology_context = GNUNET_malloc (sizeof (struct TopologyIterateContext));
4947 topology_context->topology_cb = cb;
4948 topology_context->cls = cls;
4949 topology_context->pg = pg;
4951 for (i = 0; i < pg->total; i++)
4953 if (pg->peers[i].daemon->running == GNUNET_YES)
4955 /* Allocate one core context per core we need to connect to */
4956 core_ctx = GNUNET_malloc (sizeof (struct CoreContext));
4957 core_ctx->daemon = pg->peers[i].daemon;
4958 /* Set back pointer to topology iteration context */
4959 core_ctx->iter_context = topology_context;
4960 GNUNET_SCHEDULER_add_now (&schedule_get_topology, core_ctx);
4964 if (total_count == 0)
4966 cb (cls, NULL, NULL, "Cannot iterate over topology, no running peers!");
4967 GNUNET_free (topology_context);
4970 topology_context->total = total_count;
4975 * Callback function to process statistic values.
4976 * This handler is here only really to insert a peer
4977 * identity (or daemon) so the statistics can be uniquely
4978 * tied to a single running peer.
4980 * @param cls closure
4981 * @param subsystem name of subsystem that created the statistic
4982 * @param name the name of the datum
4983 * @param value the current value
4984 * @param is_persistent GNUNET_YES if the value is persistent, GNUNET_NO if not
4985 * @return GNUNET_OK to continue, GNUNET_SYSERR to abort iteration
4988 internal_stats_callback(void *cls, const char *subsystem, const char *name,
4989 uint64_t value, int is_persistent)
4991 struct StatsCoreContext *core_context = cls;
4992 struct StatsIterateContext *stats_context =
4993 (struct StatsIterateContext *) core_context->iter_context;
4995 return stats_context->proc (stats_context->cls, &core_context->daemon->id,
4996 subsystem, name, value, is_persistent);
5000 * Internal continuation call for statistics iteration.
5002 * @param cls closure, the CoreContext for this iteration
5003 * @param success whether or not the statistics iterations
5004 * was canceled or not (we don't care)
5007 internal_stats_cont(void *cls, int success)
5009 struct StatsCoreContext *core_context = cls;
5010 struct StatsIterateContext *stats_context =
5011 (struct StatsIterateContext *) core_context->iter_context;
5013 stats_context->connected--;
5014 stats_context->completed++;
5016 if (stats_context->completed == stats_context->total)
5018 stats_context->cont (stats_context->cls, GNUNET_YES);
5019 GNUNET_free (stats_context);
5022 if (core_context->stats_handle != NULL)
5023 GNUNET_STATISTICS_destroy (core_context->stats_handle, GNUNET_NO);
5025 GNUNET_free (core_context);
5029 * Check running topology iteration tasks, if below max start a new one, otherwise
5030 * schedule for some time in the future.
5033 schedule_get_statistics(void *cls,
5034 const struct GNUNET_SCHEDULER_TaskContext *tc)
5036 struct StatsCoreContext *core_context = cls;
5037 struct StatsIterateContext *stats_context =
5038 (struct StatsIterateContext *) core_context->iter_context;
5040 if ( (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN) != 0)
5043 if (stats_context->connected > stats_context->pg->max_outstanding_connections)
5045 #if VERBOSE_TESTING > 2
5046 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
5048 ("Delaying connect, we have too many outstanding connections!\n"));
5050 GNUNET_SCHEDULER_add_delayed (
5051 GNUNET_TIME_relative_multiply (
5052 GNUNET_TIME_UNIT_MILLISECONDS,
5054 &schedule_get_statistics, core_context);
5058 #if VERBOSE_TESTING > 2
5059 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
5060 _("Creating connection, outstanding_connections is %d\n"),
5061 outstanding_connects);
5064 stats_context->connected++;
5065 core_context->stats_handle
5066 = GNUNET_STATISTICS_create ("testing", core_context->daemon->cfg);
5067 if (core_context->stats_handle == NULL)
5069 internal_stats_cont (core_context, GNUNET_NO);
5073 core_context->stats_get_handle
5074 = GNUNET_STATISTICS_get (core_context->stats_handle, NULL, NULL,
5075 GNUNET_TIME_relative_get_forever (),
5076 &internal_stats_cont,
5077 &internal_stats_callback, core_context);
5078 if (core_context->stats_get_handle == NULL)
5079 internal_stats_cont (core_context, GNUNET_NO);
5084 struct DuplicateStats
5087 * Next item in the list
5089 struct DuplicateStats *next;
5092 * Nasty string, concatenation of relevant information.
5094 char *unique_string;
5098 * Check whether the combination of port/host/unix domain socket
5099 * already exists in the list of peers being checked for statistics.
5101 * @param pg the peergroup in question
5102 * @param specific_peer the peer we're concerned with
5103 * @param stats_list the list to return to the caller
5105 * @return GNUNET_YES if the statistics instance has been seen already,
5106 * GNUNET_NO if not (and we may have added it to the list)
5109 stats_check_existing(struct GNUNET_TESTING_PeerGroup *pg,
5110 struct PeerData *specific_peer,
5111 struct DuplicateStats **stats_list)
5113 struct DuplicateStats *pos;
5114 char *unix_domain_socket;
5115 unsigned long long port;
5118 != GNUNET_CONFIGURATION_get_value_yesno (pg->cfg, "testing",
5119 "single_statistics_per_host"))
5120 return GNUNET_NO; /* Each peer has its own statistics instance, do nothing! */
5123 if (GNUNET_OK != GNUNET_CONFIGURATION_get_value_string (specific_peer->cfg,
5126 &unix_domain_socket))
5129 if (GNUNET_OK != GNUNET_CONFIGURATION_get_value_number (specific_peer->cfg,
5130 "statistics", "port",
5133 GNUNET_free(unix_domain_socket);
5137 if (specific_peer->daemon->hostname != NULL)
5138 GNUNET_asprintf (&to_match, "%s%s%llu", specific_peer->daemon->hostname,
5139 unix_domain_socket, port);
5141 GNUNET_asprintf (&to_match, "%s%llu", unix_domain_socket, port);
5145 if (0 == strcmp (to_match, pos->unique_string))
5147 GNUNET_free (unix_domain_socket);
5148 GNUNET_free (to_match);
5153 pos = GNUNET_malloc (sizeof (struct DuplicateStats));
5154 pos->unique_string = to_match;
5155 pos->next = *stats_list;
5157 GNUNET_free (unix_domain_socket);
5162 * Iterate over all (running) peers in the peer group, retrieve
5163 * all statistics from each.
5165 * @param pg the peergroup to iterate statistics of
5166 * @param cont continuation to call once all stats have been retrieved
5167 * @param proc processing function for each statistic from each peer
5168 * @param cls closure to pass to proc
5172 GNUNET_TESTING_get_statistics(struct GNUNET_TESTING_PeerGroup *pg,
5173 GNUNET_STATISTICS_Callback cont,
5174 GNUNET_TESTING_STATISTICS_Iterator proc,
5177 struct StatsIterateContext *stats_context;
5178 struct StatsCoreContext *core_ctx;
5180 unsigned int total_count;
5181 struct DuplicateStats *stats_list;
5182 struct DuplicateStats *pos;
5185 /* Allocate a single stats iteration context */
5186 stats_context = GNUNET_malloc (sizeof (struct StatsIterateContext));
5187 stats_context->cont = cont;
5188 stats_context->proc = proc;
5189 stats_context->cls = cls;
5190 stats_context->pg = pg;
5193 for (i = 0; i < pg->total; i++)
5195 if ((pg->peers[i].daemon->running == GNUNET_YES) && (GNUNET_NO
5196 == stats_check_existing (pg, &pg->peers[i], &stats_list)))
5198 /* Allocate one core context per core we need to connect to */
5199 core_ctx = GNUNET_malloc (sizeof (struct StatsCoreContext));
5200 core_ctx->daemon = pg->peers[i].daemon;
5201 /* Set back pointer to topology iteration context */
5202 core_ctx->iter_context = stats_context;
5203 GNUNET_SCHEDULER_add_now (&schedule_get_statistics, core_ctx);
5208 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
5209 "Retrieving stats from %u total instances.\n", total_count);
5210 stats_context->total = total_count;
5211 if (stats_list != NULL)
5216 GNUNET_free (pos->unique_string);
5217 stats_list = pos->next;
5219 pos = stats_list->next;
5226 * Stop the connection process temporarily.
5228 * @param pg the peer group to stop connecting
5231 GNUNET_TESTING_stop_connections(struct GNUNET_TESTING_PeerGroup *pg)
5233 pg->stop_connects = GNUNET_YES;
5237 * Resume the connection process temporarily.
5239 * @param pg the peer group to resume connecting
5242 GNUNET_TESTING_resume_connections(struct GNUNET_TESTING_PeerGroup *pg)
5244 pg->stop_connects = GNUNET_NO;
5248 * There are many ways to connect peers that are supported by this function.
5249 * To connect peers in the same topology that was created via the
5250 * GNUNET_TESTING_create_topology, the topology variable must be set to
5251 * GNUNET_TESTING_TOPOLOGY_NONE. If the topology variable is specified,
5252 * a new instance of that topology will be generated and attempted to be
5253 * connected. This could result in some connections being impossible,
5254 * because some topologies are non-deterministic.
5256 * @param pg the peer group struct representing the running peers
5257 * @param topology which topology to connect the peers in
5258 * @param options options for connecting the topology
5259 * @param option_modifier modifier for options that take a parameter
5260 * @param connect_timeout how long to wait before giving up on connecting
5262 * @param connect_attempts how many times to attempt to connect two peers
5263 * over the connect_timeout duration
5264 * @param notify_callback notification to be called once all connections completed
5265 * @param notify_cls closure for notification callback
5267 * @return the number of connections that will be attempted, GNUNET_SYSERR on error
5270 GNUNET_TESTING_connect_topology(
5271 struct GNUNET_TESTING_PeerGroup *pg,
5272 enum GNUNET_TESTING_Topology topology,
5273 enum GNUNET_TESTING_TopologyOption options,
5274 double option_modifier,
5275 struct GNUNET_TIME_Relative connect_timeout,
5276 unsigned int connect_attempts,
5277 GNUNET_TESTING_NotifyCompletion notify_callback,
5282 case GNUNET_TESTING_TOPOLOGY_CLIQUE:
5283 #if VERBOSE_TOPOLOGY
5284 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
5285 _("Creating clique CONNECT topology\n"));
5287 create_clique (pg, &add_connections, CONNECT, GNUNET_NO);
5289 case GNUNET_TESTING_TOPOLOGY_SMALL_WORLD_RING:
5290 #if VERBOSE_TOPOLOGY
5291 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
5292 _("Creating small world (ring) CONNECT topology\n"));
5294 create_small_world_ring (pg, &add_connections, CONNECT);
5296 case GNUNET_TESTING_TOPOLOGY_SMALL_WORLD:
5297 #if VERBOSE_TOPOLOGY
5298 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
5299 _("Creating small world (2d-torus) CONNECT topology\n"));
5301 create_small_world (pg, &add_connections, CONNECT);
5303 case GNUNET_TESTING_TOPOLOGY_RING:
5304 #if VERBOSE_TOPOLOGY
5305 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, _("Creating ring CONNECT topology\n"));
5307 create_ring (pg, &add_connections, CONNECT);
5309 case GNUNET_TESTING_TOPOLOGY_2D_TORUS:
5310 #if VERBOSE_TOPOLOGY
5311 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
5312 _("Creating 2d torus CONNECT topology\n"));
5314 create_2d_torus (pg, &add_connections, CONNECT);
5316 case GNUNET_TESTING_TOPOLOGY_ERDOS_RENYI:
5317 #if VERBOSE_TOPOLOGY
5318 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
5319 _("Creating Erdos-Renyi CONNECT topology\n"));
5321 create_erdos_renyi (pg, &add_connections, CONNECT);
5323 case GNUNET_TESTING_TOPOLOGY_INTERNAT:
5324 #if VERBOSE_TOPOLOGY
5325 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
5326 _("Creating InterNAT CONNECT topology\n"));
5328 create_nated_internet (pg, &add_connections, CONNECT);
5330 case GNUNET_TESTING_TOPOLOGY_SCALE_FREE:
5331 #if VERBOSE_TOPOLOGY
5332 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
5333 _("Creating Scale Free CONNECT topology\n"));
5335 create_scale_free (pg, &add_connections, CONNECT);
5337 case GNUNET_TESTING_TOPOLOGY_LINE:
5338 #if VERBOSE_TOPOLOGY
5339 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
5340 _("Creating straight line CONNECT topology\n"));
5342 create_line (pg, &add_connections, CONNECT);
5344 case GNUNET_TESTING_TOPOLOGY_NONE:
5345 #if VERBOSE_TOPOLOGY
5346 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, _("Creating no CONNECT topology\n"));
5348 copy_allowed_topology (pg);
5351 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, _
5352 ("Unknown topology specification, can't connect peers!\n"));
5353 return GNUNET_SYSERR;
5358 case GNUNET_TESTING_TOPOLOGY_OPTION_RANDOM:
5359 #if VERBOSE_TOPOLOGY
5360 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, _
5361 ("Connecting random subset (%'.2f percent) of possible peers\n"), 100
5364 choose_random_connections (pg, option_modifier);
5366 case GNUNET_TESTING_TOPOLOGY_OPTION_MINIMUM:
5367 #if VERBOSE_TOPOLOGY
5368 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
5369 _("Connecting a minimum of %u peers each (if possible)\n"),
5370 (unsigned int) option_modifier);
5372 choose_minimum (pg, (unsigned int) option_modifier);
5374 case GNUNET_TESTING_TOPOLOGY_OPTION_DFS:
5375 #if VERBOSE_TOPOLOGY
5376 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, _
5377 ("Using DFS to connect a minimum of %u peers each (if possible)\n"),
5378 (unsigned int) option_modifier);
5381 perform_dfs (pg, (int) option_modifier);
5384 case GNUNET_TESTING_TOPOLOGY_OPTION_ADD_CLOSEST:
5385 #if VERBOSE_TOPOLOGY
5386 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, _
5387 ("Finding additional %u closest peers each (if possible)\n"),
5388 (unsigned int) option_modifier);
5391 add_closest (pg, (unsigned int) option_modifier,
5392 &add_connections, CONNECT);
5395 case GNUNET_TESTING_TOPOLOGY_OPTION_NONE:
5397 case GNUNET_TESTING_TOPOLOGY_OPTION_ALL:
5403 return connect_topology (pg, connect_timeout, connect_attempts,
5404 notify_callback, notify_cls);
5408 * Lookup and return the number of SSH connections to a host.
5410 * @param hostname the hostname to lookup in the list
5411 * @param pg the peergroup that the host belongs to
5413 * @return the number of current ssh connections to the host
5416 count_outstanding_at_host(const char *hostname,
5417 struct GNUNET_TESTING_PeerGroup *pg)
5419 struct OutstandingSSH *pos;
5421 while ((pos != NULL) && (strcmp (pos->hostname, hostname) != 0))
5423 GNUNET_assert(pos != NULL);
5424 return pos->outstanding;
5428 * Increment the number of SSH connections to a host by one.
5430 * @param hostname the hostname to lookup in the list
5431 * @param pg the peergroup that the host belongs to
5435 increment_outstanding_at_host(const char *hostname,
5436 struct GNUNET_TESTING_PeerGroup *pg)
5438 struct OutstandingSSH *pos;
5440 while ((pos != NULL) && (strcmp (pos->hostname, hostname) != 0))
5442 GNUNET_assert(pos != NULL);
5447 * Decrement the number of SSH connections to a host by one.
5449 * @param hostname the hostname to lookup in the list
5450 * @param pg the peergroup that the host belongs to
5454 decrement_outstanding_at_host(const char *hostname,
5455 struct GNUNET_TESTING_PeerGroup *pg)
5457 struct OutstandingSSH *pos;
5459 while ((pos != NULL) && (strcmp (pos->hostname, hostname) != 0))
5461 GNUNET_assert(pos != NULL);
5466 * Callback that is called whenever a hostkey is generated
5467 * for a peer. Call the real callback and decrement the
5468 * starting counter for the peergroup.
5470 * @param cls closure
5471 * @param id identifier for the daemon, NULL on error
5472 * @param d handle for the daemon
5473 * @param emsg error message (NULL on success)
5476 internal_hostkey_callback(void *cls, const struct GNUNET_PeerIdentity *id,
5477 struct GNUNET_TESTING_Daemon *d, const char *emsg)
5479 struct InternalStartContext *internal_context = cls;
5480 internal_context->peer->pg->starting--;
5481 internal_context->peer->pg->started++;
5482 if (internal_context->hostname != NULL)
5483 decrement_outstanding_at_host (internal_context->hostname,
5484 internal_context->peer->pg);
5485 if (internal_context->hostkey_callback != NULL)
5486 internal_context->hostkey_callback (internal_context->hostkey_cls, id, d,
5488 else if (internal_context->peer->pg->started
5489 == internal_context->peer->pg->total)
5491 internal_context->peer->pg->started = 0; /* Internal startup may use this counter! */
5492 GNUNET_TESTING_daemons_continue_startup (internal_context->peer->pg);
5497 * Callback that is called whenever a peer has finished starting.
5498 * Call the real callback and decrement the starting counter
5499 * for the peergroup.
5501 * @param cls closure
5502 * @param id identifier for the daemon, NULL on error
5504 * @param d handle for the daemon
5505 * @param emsg error message (NULL on success)
5508 internal_startup_callback(void *cls, const struct GNUNET_PeerIdentity *id,
5509 const struct GNUNET_CONFIGURATION_Handle *cfg,
5510 struct GNUNET_TESTING_Daemon *d, const char *emsg)
5512 struct InternalStartContext *internal_context = cls;
5513 internal_context->peer->pg->starting--;
5514 if (internal_context->hostname != NULL)
5515 decrement_outstanding_at_host (internal_context->hostname,
5516 internal_context->peer->pg);
5517 if (internal_context->start_cb != NULL)
5518 internal_context->start_cb (internal_context->start_cb_cls, id, cfg, d,
5523 internal_continue_startup(void *cls,
5524 const struct GNUNET_SCHEDULER_TaskContext *tc)
5526 struct InternalStartContext *internal_context = cls;
5528 if ( (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN) != 0)
5533 if ((internal_context->peer->pg->starting
5534 < internal_context->peer->pg->max_concurrent_ssh)
5535 || ((internal_context->hostname != NULL)
5536 && (count_outstanding_at_host (internal_context->hostname,
5537 internal_context->peer->pg)
5538 < internal_context->peer->pg->max_concurrent_ssh)))
5540 if (internal_context->hostname != NULL)
5541 increment_outstanding_at_host (internal_context->hostname,
5542 internal_context->peer->pg);
5543 internal_context->peer->pg->starting++;
5544 GNUNET_TESTING_daemon_continue_startup (internal_context->peer->daemon);
5548 GNUNET_SCHEDULER_add_delayed (
5549 GNUNET_TIME_relative_multiply (
5550 GNUNET_TIME_UNIT_MILLISECONDS,
5552 &internal_continue_startup,
5558 * Callback for informing us about a successful
5559 * or unsuccessful churn start call.
5561 * @param cls a ChurnContext
5562 * @param id the peer identity of the started peer
5563 * @param cfg the handle to the configuration of the peer
5564 * @param d handle to the daemon for the peer
5565 * @param emsg NULL on success, non-NULL on failure
5569 churn_start_callback(void *cls, const struct GNUNET_PeerIdentity *id,
5570 const struct GNUNET_CONFIGURATION_Handle *cfg,
5571 struct GNUNET_TESTING_Daemon *d, const char *emsg)
5573 struct ChurnRestartContext *startup_ctx = cls;
5574 struct ChurnContext *churn_ctx = startup_ctx->churn_ctx;
5576 unsigned int total_left;
5577 char *error_message;
5579 error_message = NULL;
5582 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
5583 "Churn stop callback failed with error `%s'\n", emsg);
5584 churn_ctx->num_failed_start++;
5588 churn_ctx->num_to_start--;
5591 total_left = (churn_ctx->num_to_stop - churn_ctx->num_failed_stop)
5592 + (churn_ctx->num_to_start - churn_ctx->num_failed_start);
5594 if (total_left == 0)
5596 if ((churn_ctx->num_failed_stop > 0) || (churn_ctx->num_failed_start > 0))
5599 "Churn didn't complete successfully, %u peers failed to start %u peers failed to be stopped!",
5600 churn_ctx->num_failed_start,
5601 churn_ctx->num_failed_stop);
5602 churn_ctx->cb (churn_ctx->cb_cls, error_message);
5603 GNUNET_free_non_null (error_message);
5604 GNUNET_free (churn_ctx);
5605 GNUNET_free (startup_ctx);
5610 schedule_churn_restart(void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
5612 struct PeerRestartContext *peer_restart_ctx = cls;
5613 struct ChurnRestartContext *startup_ctx = peer_restart_ctx->churn_restart_ctx;
5615 if (startup_ctx->outstanding > startup_ctx->pg->max_concurrent_ssh)
5616 GNUNET_SCHEDULER_add_delayed (
5617 GNUNET_TIME_relative_multiply (
5618 GNUNET_TIME_UNIT_MILLISECONDS,
5620 &schedule_churn_restart, peer_restart_ctx);
5623 if (startup_ctx->churn_ctx->service != NULL)
5624 GNUNET_TESTING_daemon_start_stopped_service (peer_restart_ctx->daemon,
5625 startup_ctx->churn_ctx->service,
5626 startup_ctx->timeout,
5627 &churn_start_callback, startup_ctx);
5629 GNUNET_TESTING_daemon_start_stopped (peer_restart_ctx->daemon,
5630 startup_ctx->timeout,
5631 &churn_start_callback, startup_ctx);
5632 GNUNET_free (peer_restart_ctx);
5637 * Callback for informing us about a successful
5638 * or unsuccessful churn start call.
5640 * @param cls a struct ServiceStartContext *startup_ctx
5641 * @param id the peer identity of the started peer
5642 * @param cfg the handle to the configuration of the peer
5643 * @param d handle to the daemon for the peer
5644 * @param emsg NULL on success, non-NULL on failure
5648 service_start_callback(void *cls,
5649 const struct GNUNET_PeerIdentity *id,
5650 const struct GNUNET_CONFIGURATION_Handle *cfg,
5651 struct GNUNET_TESTING_Daemon *d,
5654 struct ServiceStartContext *startup_ctx = (struct ServiceStartContext *)cls;
5658 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
5659 "Service start failed with error `%s'\n", emsg);
5662 startup_ctx->outstanding--;
5663 startup_ctx->remaining--;
5665 if (startup_ctx->remaining == 0)
5667 startup_ctx->cb (startup_ctx->cb_cls, NULL);
5668 GNUNET_free (startup_ctx->service);
5669 GNUNET_free (startup_ctx);
5674 schedule_service_start(void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
5676 struct PeerServiceStartContext *peer_ctx = cls;
5677 struct ServiceStartContext *startup_ctx = peer_ctx->start_ctx;
5679 if (startup_ctx->outstanding > startup_ctx->pg->max_concurrent_ssh)
5680 GNUNET_SCHEDULER_add_delayed (
5681 GNUNET_TIME_relative_multiply (
5682 GNUNET_TIME_UNIT_MILLISECONDS,
5684 &schedule_service_start, peer_ctx);
5688 GNUNET_TESTING_daemon_start_service (peer_ctx->daemon,
5689 startup_ctx->service,
5690 startup_ctx->timeout,
5691 &service_start_callback, startup_ctx);
5692 GNUNET_free (peer_ctx);
5698 internal_start(void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
5700 struct InternalStartContext *internal_context = cls;
5702 if ( (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN) != 0)
5707 if ((internal_context->peer->pg->starting
5708 < internal_context->peer->pg->max_concurrent_ssh)
5709 || ((internal_context->hostname != NULL)
5710 && (count_outstanding_at_host (internal_context->hostname,
5711 internal_context->peer->pg)
5712 < internal_context->peer->pg->max_concurrent_ssh)))
5714 if (internal_context->hostname != NULL)
5715 increment_outstanding_at_host (internal_context->hostname,
5716 internal_context->peer->pg);
5717 internal_context->peer->pg->starting++;
5718 internal_context->peer->daemon
5719 = GNUNET_TESTING_daemon_start (internal_context->peer->cfg,
5720 internal_context->timeout,
5722 internal_context->hostname,
5723 internal_context->username,
5724 internal_context->sshport,
5725 internal_context->hostkey,
5726 &internal_hostkey_callback,
5728 &internal_startup_callback,
5733 GNUNET_SCHEDULER_add_delayed (
5734 GNUNET_TIME_relative_multiply (
5735 GNUNET_TIME_UNIT_MILLISECONDS,
5737 &internal_start, internal_context);
5740 #if USE_START_HELPER
5742 struct PeerStartHelperContext
5744 struct GNUNET_TESTING_PeerGroup *pg;
5746 struct HostData *host;
5748 struct GNUNET_OS_Process *proc;
5752 check_peers_started (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
5754 struct PeerStartHelperContext *helper = cls;
5755 enum GNUNET_OS_ProcessStatusType type;
5758 GNUNET_TESTING_NotifyDaemonRunning cb;
5760 if (GNUNET_NO == GNUNET_OS_process_status (helper->proc, &type, &code)) /* Still running, wait some more! */
5762 GNUNET_SCHEDULER_add_delayed(GNUNET_CONSTANTS_EXEC_WAIT, &check_peers_started, helper);
5766 helper->pg->starting--;
5767 if (helper->pg->starting == 0) /* All peers have finished starting! */
5769 /* Call the peer started callback for each peer, set proper FSM state (?) */
5770 for (i = 0; i < helper->pg->total; i++)
5772 cb = helper->pg->peers[i].daemon->cb;
5773 helper->pg->peers[i].daemon->cb = NULL;
5774 helper->pg->peers[i].daemon->running = GNUNET_YES;
5775 helper->pg->peers[i].daemon->phase = SP_START_DONE;
5778 if ((type != GNUNET_OS_PROCESS_EXITED) || (code != 0))
5779 cb (helper->pg->peers[i].daemon->cb_cls,
5780 &helper->pg->peers[i].daemon->id,
5781 helper->pg->peers[i].daemon->cfg, helper->pg->peers[i].daemon,
5782 "Failed to execute peerStartHelper.pl, or return code bad!");
5784 cb (helper->pg->peers[i].daemon->cb_cls,
5785 &helper->pg->peers[i].daemon->id,
5786 helper->pg->peers[i].daemon->cfg, helper->pg->peers[i].daemon,
5793 GNUNET_OS_process_close(helper->proc);
5797 start_peer_helper (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
5799 struct PeerStartHelperContext *helper = cls;
5800 char *baseservicehome;
5803 /* ssh user@host peerStartHelper /path/to/basedirectory */
5804 GNUNET_assert(GNUNET_OK == GNUNET_CONFIGURATION_get_value_string (helper->pg->cfg, "PATHS", "SERVICEHOME",
5806 GNUNET_asprintf(&tempdir, "%s/%s/", baseservicehome, helper->host->hostname);
5807 if (NULL != helper->host->username)
5808 GNUNET_asprintf (&arg, "%s@%s", helper->host->username, helper->host->hostname);
5810 GNUNET_asprintf (&arg, "%s", helper->host->hostname);
5812 /* FIXME: Doesn't support ssh_port option! */
5813 helper->proc = GNUNET_OS_start_process (NULL, NULL, "ssh", "ssh", arg,
5814 "peerStartHelper.pl", tempdir, NULL);
5815 GNUNET_assert(helper->proc != NULL);
5816 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "starting peers with cmd ssh %s %s %s\n", arg, "peerStartHelper.pl", tempdir);
5817 GNUNET_SCHEDULER_add_now (&check_peers_started, helper);
5818 GNUNET_free (tempdir);
5819 GNUNET_free (baseservicehome);
5825 * Function which continues a peer group starting up
5826 * after successfully generating hostkeys for each peer.
5828 * @param pg the peer group to continue starting
5832 GNUNET_TESTING_daemons_continue_startup(struct GNUNET_TESTING_PeerGroup *pg)
5836 #if USE_START_HELPER
5837 if ((pg->num_hosts > 0) && (pg->hostkey_data != NULL))
5839 struct PeerStartHelperContext *helper;
5840 pg->starting = pg->num_hosts;
5841 for (i = 0; i < pg->num_hosts; i++)
5843 helper = GNUNET_malloc(sizeof(struct PeerStartHelperContext));
5845 helper->host = &pg->hosts[i];
5846 GNUNET_SCHEDULER_add_now(&start_peer_helper, helper);
5852 for (i = 0; i < pg->total; i++)
5854 GNUNET_SCHEDULER_add_now (&internal_continue_startup,
5855 &pg->peers[i].internal_context);
5860 for (i = 0; i < pg->total; i++)
5862 GNUNET_SCHEDULER_add_now (&internal_continue_startup,
5863 &pg->peers[i].internal_context);
5868 #if USE_START_HELPER
5870 call_hostkey_callbacks (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
5872 struct GNUNET_TESTING_PeerGroup *pg = cls;
5874 for (i = 0; i < pg->total; i++)
5876 if (pg->peers[i].internal_context.hostkey_callback != NULL)
5877 pg->peers[i].internal_context.hostkey_callback (pg->peers[i].internal_context.hostkey_cls,
5878 &pg->peers[i].daemon->id,
5879 pg->peers[i].daemon,
5883 if (pg->peers[0].internal_context.hostkey_callback == NULL)
5884 GNUNET_TESTING_daemons_continue_startup (pg);
5889 * Start count gnunet instances with the same set of transports and
5890 * applications. The port numbers (any option called "PORT") will be
5891 * adjusted to ensure that no two peers running on the same system
5892 * have the same port(s) in their respective configurations.
5894 * @param cfg configuration template to use
5895 * @param total number of daemons to start
5896 * @param max_concurrent_connections for testing, how many peers can
5897 * we connect to simultaneously
5898 * @param max_concurrent_ssh when starting with ssh, how many ssh
5899 * connections will we allow at once (based on remote hosts allowed!)
5900 * @param timeout total time allowed for peers to start
5901 * @param hostkey_callback function to call on each peers hostkey generation
5902 * if NULL, peers will be started by this call, if non-null,
5903 * GNUNET_TESTING_daemons_continue_startup must be called after
5904 * successful hostkey generation
5905 * @param hostkey_cls closure for hostkey callback
5906 * @param cb function to call on each daemon that was started
5907 * @param cb_cls closure for cb
5908 * @param connect_callback function to call each time two hosts are connected
5909 * @param connect_callback_cls closure for connect_callback
5910 * @param hostnames linked list of host structs to use to start peers on
5911 * (NULL to run on localhost only)
5913 * @return NULL on error, otherwise handle to control peer group
5915 struct GNUNET_TESTING_PeerGroup *
5916 GNUNET_TESTING_daemons_start(const struct GNUNET_CONFIGURATION_Handle *cfg,
5918 unsigned int max_concurrent_connections,
5919 unsigned int max_concurrent_ssh,
5920 struct GNUNET_TIME_Relative timeout,
5921 GNUNET_TESTING_NotifyHostkeyCreated hostkey_callback,
5923 GNUNET_TESTING_NotifyDaemonRunning cb,
5925 GNUNET_TESTING_NotifyConnection connect_callback,
5926 void *connect_callback_cls,
5927 const struct GNUNET_TESTING_Host *hostnames)
5929 struct GNUNET_TESTING_PeerGroup *pg;
5930 const struct GNUNET_TESTING_Host *hostpos;
5931 const char *hostname;
5932 const char *username;
5933 char *baseservicehome;
5934 char *newservicehome;
5936 char *hostkeys_file;
5939 struct GNUNET_DISK_FileHandle *fd;
5940 struct GNUNET_CONFIGURATION_Handle *pcfg;
5942 struct OutstandingSSH *ssh_entry;
5943 unsigned int hostcnt;
5950 uint64_t total_hostkeys;
5951 struct GNUNET_OS_Process *proc;
5962 pg = GNUNET_malloc (sizeof (struct GNUNET_TESTING_PeerGroup));
5964 pg->notify_connection = connect_callback;
5965 pg->notify_connection_cls = connect_callback_cls;
5967 pg->max_timeout = GNUNET_TIME_relative_to_absolute (timeout);
5968 pg->peers = GNUNET_malloc (total * sizeof (struct PeerData));
5969 pg->max_outstanding_connections = max_concurrent_connections;
5970 pg->max_concurrent_ssh = max_concurrent_ssh;
5971 if (NULL != hostnames)
5974 hostpos = hostnames;
5975 while (hostpos != NULL)
5977 hostpos = hostpos->next;
5980 pg->hosts = GNUNET_malloc (off * sizeof (struct HostData));
5983 hostpos = hostnames;
5984 while (hostpos != NULL)
5986 pg->hosts[off].minport = LOW_PORT;
5987 pg->hosts[off].hostname = GNUNET_strdup (hostpos->hostname);
5988 if (hostpos->username != NULL)
5989 pg->hosts[off].username = GNUNET_strdup (hostpos->username);
5990 pg->hosts[off].sshport = hostpos->port;
5991 hostpos = hostpos->next;
6001 pg->num_hosts = off;
6009 /* Create the servicehome directory for each remote peer */
6010 GNUNET_assert(GNUNET_OK ==
6011 GNUNET_CONFIGURATION_get_value_string (cfg, "PATHS", "SERVICEHOME",
6013 for (i = 0; i < pg->num_hosts; i++)
6015 ssh_entry = GNUNET_malloc(sizeof(struct OutstandingSSH));
6016 ssh_entry->hostname = pg->hosts[i].hostname; /* Don't free! */
6017 GNUNET_CONTAINER_DLL_insert(pg->ssh_head, pg->ssh_tail, ssh_entry);
6018 GNUNET_asprintf(&tmpdir, "%s/%s", baseservicehome, pg->hosts[i].hostname);
6019 if (NULL != pg->hosts[i].username)
6020 GNUNET_asprintf (&arg, "%s@%s", pg->hosts[i].username,
6021 pg->hosts[i].hostname);
6023 GNUNET_asprintf (&arg, "%s", pg->hosts[i].hostname);
6024 if (pg->hosts[i].sshport != 0)
6026 GNUNET_asprintf (&ssh_port_str, "%d", pg->hosts[i].sshport);
6027 proc = GNUNET_OS_start_process (NULL, NULL, "ssh", "ssh", "-P",
6032 arg, "mkdir -p", tmpdir,
6036 proc = GNUNET_OS_start_process (NULL, NULL, "ssh", "ssh", arg,
6037 "mkdir -p", tmpdir, NULL);
6038 GNUNET_assert(proc != NULL);
6039 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
6040 "Creating remote dir with command ssh %s %s %s\n", arg,
6041 " mkdir -p ", tmpdir);
6042 GNUNET_free(tmpdir);
6044 GNUNET_OS_process_wait (proc);
6045 GNUNET_OS_process_close(proc);
6047 GNUNET_free(baseservicehome);
6048 baseservicehome = NULL;
6050 if (GNUNET_YES == GNUNET_CONFIGURATION_get_value_string (cfg, "TESTING",
6054 if (GNUNET_YES != GNUNET_DISK_file_test (hostkeys_file))
6055 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
6056 _("Could not read hostkeys file!\n"));
6059 /* Check hostkey file size, read entire thing into memory */
6060 fd = GNUNET_DISK_file_open (hostkeys_file,
6061 GNUNET_DISK_OPEN_READ,
6062 GNUNET_DISK_PERM_NONE);
6065 GNUNET_log_strerror_file (GNUNET_ERROR_TYPE_ERROR,
6068 GNUNET_free (hostkeys_file);
6069 for (i=0;i<pg->num_hosts;i++)
6071 GNUNET_free (pg->hosts[i].hostname);
6072 GNUNET_free_non_null (pg->hosts[i].username);
6074 GNUNET_free (pg->peers);
6075 GNUNET_free (pg->hosts);
6080 if (GNUNET_YES != GNUNET_DISK_file_size (hostkeys_file, &fs,
6084 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
6085 "Found file size %llu for hostkeys, expect hostkeys to be size %d\n",
6086 fs, HOSTKEYFILESIZE);
6088 if (0 != (fs % HOSTKEYFILESIZE))
6090 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
6091 "File size %llu seems incorrect for hostkeys...\n",
6096 total_hostkeys = fs / HOSTKEYFILESIZE;
6097 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
6098 "Will read %llu hostkeys from file\n",
6100 pg->hostkey_data = GNUNET_malloc_large (fs);
6101 GNUNET_assert (fs == GNUNET_DISK_file_read (fd, pg->hostkey_data, fs));
6103 GNUNET_assert(GNUNET_OK == GNUNET_DISK_file_close(fd));
6105 GNUNET_free(hostkeys_file);
6108 for (off = 0; off < total; off++)
6112 hostname = pg->hosts[off % hostcnt].hostname;
6113 username = pg->hosts[off % hostcnt].username;
6114 sshport = pg->hosts[off % hostcnt].sshport;
6115 pcfg = make_config (cfg, off, &pg->hosts[off % hostcnt].minport,
6116 &upnum, hostname, &fdnum);
6123 pcfg = make_config (cfg, off, &minport, &upnum, hostname, &fdnum);
6128 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
6129 _("Could not create configuration for peer number %u on `%s'!\n"),
6131 hostname == NULL ? "localhost" : hostname);
6136 == GNUNET_CONFIGURATION_get_value_string (pcfg, "PATHS",
6140 if (hostname != NULL)
6141 GNUNET_asprintf (&newservicehome, "%s/%s/%d/", baseservicehome, hostname, off);
6143 GNUNET_asprintf (&newservicehome, "%s/%d/", baseservicehome, off);
6144 GNUNET_free (baseservicehome);
6145 baseservicehome = NULL;
6149 tmpdir = getenv ("TMPDIR");
6150 tmpdir = tmpdir ? tmpdir : "/tmp";
6151 if (hostname != NULL)
6152 GNUNET_asprintf (&newservicehome, "%s/%s/%s/%d/", tmpdir, hostname,
6153 "gnunet-testing-test-test", off);
6155 GNUNET_asprintf (&newservicehome, "%s/%s/%d/", tmpdir,
6156 "gnunet-testing-test-test", off);
6158 GNUNET_CONFIGURATION_set_value_string (pcfg, "PATHS", "SERVICEHOME",
6160 GNUNET_free (newservicehome);
6161 pg->peers[off].cfg = pcfg;
6162 pg->peers[off].pg = pg;
6163 pg->peers[off].internal_context.peer = &pg->peers[off];
6164 pg->peers[off].internal_context.timeout = timeout;
6165 pg->peers[off].internal_context.hostname = hostname;
6166 pg->peers[off].internal_context.username = username;
6167 pg->peers[off].internal_context.sshport = sshport;
6168 if (pg->hostkey_data != NULL)
6169 pg->peers[off].internal_context.hostkey = &pg->hostkey_data[off
6171 pg->peers[off].internal_context.hostkey_callback = hostkey_callback;
6172 pg->peers[off].internal_context.hostkey_cls = hostkey_cls;
6173 pg->peers[off].internal_context.start_cb = cb;
6174 pg->peers[off].internal_context.start_cb_cls = cb_cls;
6175 #if !USE_START_HELPER
6176 GNUNET_SCHEDULER_add_now (&internal_start,
6177 &pg->peers[off].internal_context);
6179 if ((pg->hostkey_data != NULL) && (hostcnt > 0))
6181 pg->peers[off].daemon
6182 = GNUNET_TESTING_daemon_start (pcfg,
6188 pg->peers[off].internal_context.hostkey,
6189 &internal_hostkey_callback,
6190 &pg->peers[off].internal_context,
6191 &internal_startup_callback,
6192 &pg->peers[off].internal_context);
6194 * At this point, given that we had a hostkeyfile,
6195 * we can call the hostkey callback!
6196 * But first, we should copy (rsync) all of the configs
6197 * and hostkeys to the remote peers. Then let topology
6198 * creation happen, then call the peer start helper processes,
6199 * then set pg->whatever_phase for each peer and let them
6200 * enter the fsm to get the HELLO's for peers and start connecting.
6205 GNUNET_SCHEDULER_add_now (&internal_start,
6206 &pg->peers[off].internal_context);
6212 #if USE_START_HELPER /* Now the peergroup has been set up, hostkeys and configs written to files. */
6213 if ((pg->hostkey_data != NULL) && (hostcnt > 0))
6215 for (off = 0; off < hostcnt; off++)
6220 hostname = pg->hosts[off % hostcnt].hostname;
6221 username = pg->hosts[off % hostcnt].username;
6222 sshport = pg->hosts[off % hostcnt].sshport;
6232 == GNUNET_CONFIGURATION_get_value_string (cfg, "PATHS",
6236 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "baseservice home is %s\n", baseservicehome);
6237 if (hostname != NULL)
6238 GNUNET_asprintf (&newservicehome, "%s/%s/", baseservicehome, hostname);
6240 GNUNET_asprintf (&newservicehome, "%s/", baseservicehome);
6241 GNUNET_free (baseservicehome);
6242 baseservicehome = NULL;
6246 tmpdir = getenv ("TMPDIR");
6247 tmpdir = tmpdir ? tmpdir : "/tmp";
6248 if (hostname != NULL)
6249 GNUNET_asprintf (&newservicehome, "%s/%s/%s/", tmpdir, hostname,
6250 "gnunet-testing-test-test");
6252 GNUNET_asprintf (&newservicehome, "%s/%s/", tmpdir,
6253 "gnunet-testing-test-test", off);
6256 if (NULL != username)
6257 GNUNET_asprintf (&arg,
6260 pg->hosts[off].hostname,
6263 GNUNET_asprintf (&arg,
6265 pg->hosts[off].hostname,
6268 /* FIXME: Doesn't support ssh_port option! */
6269 proc = GNUNET_OS_start_process (NULL, NULL,
6271 "rsync", "-r", newservicehome, arg, NULL);
6273 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
6274 "copying directory with command rsync -r %s %s\n",
6275 newservicehome, arg);
6276 GNUNET_free(newservicehome);
6280 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
6281 _("Could not start `%s' process to copy configuration directory.\n"),
6285 GNUNET_OS_process_wait (proc);
6286 GNUNET_OS_process_close (proc);
6288 /* Now all the configuration files and hostkeys are copied to the remote host. Call the hostkey callback for each peer! */
6289 GNUNET_SCHEDULER_add_now (&call_hostkey_callbacks, pg);
6296 * Get a daemon by number, so callers don't have to do nasty
6297 * offsetting operation.
6299 struct GNUNET_TESTING_Daemon *
6300 GNUNET_TESTING_daemon_get(struct GNUNET_TESTING_PeerGroup *pg,
6301 unsigned int position)
6303 if (position < pg->total)
6304 return pg->peers[position].daemon;
6309 * Get a daemon by peer identity, so callers can
6310 * retrieve the daemon without knowing it's offset.
6312 * @param pg the peer group to retrieve the daemon from
6313 * @param peer_id the peer identity of the daemon to retrieve
6315 * @return the daemon on success, or NULL if no such peer identity is found
6317 struct GNUNET_TESTING_Daemon *
6318 GNUNET_TESTING_daemon_get_by_id(struct GNUNET_TESTING_PeerGroup *pg,
6319 struct GNUNET_PeerIdentity *peer_id)
6323 for (i = 0; i < pg->total; i++)
6325 if (0 == memcmp (&pg->peers[i].daemon->id, peer_id,
6326 sizeof(struct GNUNET_PeerIdentity)))
6327 return pg->peers[i].daemon;
6333 * Prototype of a function that will be called when a
6334 * particular operation was completed the testing library.
6336 * @param cls closure (a struct RestartContext)
6337 * @param id id of the peer that was restarted
6338 * @param cfg handle to the configuration of the peer
6339 * @param d handle to the daemon that was restarted
6340 * @param emsg NULL on success
6343 restart_callback(void *cls, const struct GNUNET_PeerIdentity *id,
6344 const struct GNUNET_CONFIGURATION_Handle *cfg,
6345 struct GNUNET_TESTING_Daemon *d, const char *emsg)
6347 struct RestartContext *restart_context = cls;
6351 restart_context->peers_restarted++;
6355 restart_context->peers_restart_failed++;
6358 if (restart_context->peers_restarted == restart_context->peer_group->total)
6360 restart_context->callback (restart_context->callback_cls, NULL);
6361 GNUNET_free (restart_context);
6363 else if (restart_context->peers_restart_failed
6364 + restart_context->peers_restarted == restart_context->peer_group->total)
6366 restart_context->callback (restart_context->callback_cls,
6367 "Failed to restart peers!");
6368 GNUNET_free (restart_context);
6374 * Callback for informing us about a successful
6375 * or unsuccessful churn stop call.
6377 * @param cls a ChurnContext
6378 * @param emsg NULL on success, non-NULL on failure
6382 churn_stop_callback(void *cls, const char *emsg)
6384 struct ShutdownContext *shutdown_ctx = cls;
6385 struct ChurnContext *churn_ctx = shutdown_ctx->cb_cls;
6386 unsigned int total_left;
6387 char *error_message;
6389 error_message = NULL;
6390 shutdown_ctx->outstanding--;
6394 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
6395 "Churn stop callback failed with error `%s'\n", emsg);
6396 churn_ctx->num_failed_stop++;
6400 churn_ctx->num_to_stop--;
6403 total_left = (churn_ctx->num_to_stop - churn_ctx->num_failed_stop)
6404 + (churn_ctx->num_to_start - churn_ctx->num_failed_start);
6406 if (total_left == 0)
6408 if ((churn_ctx->num_failed_stop > 0) || (churn_ctx->num_failed_start > 0))
6412 "Churn didn't complete successfully, %u peers failed to start %u peers failed to be stopped!",
6413 churn_ctx->num_failed_start,
6414 churn_ctx->num_failed_stop);
6416 churn_ctx->cb (churn_ctx->cb_cls, error_message);
6417 GNUNET_free_non_null (error_message);
6418 GNUNET_free (churn_ctx);
6419 GNUNET_free (shutdown_ctx);
6424 * Count the number of running peers.
6426 * @param pg handle for the peer group
6428 * @return the number of currently running peers in the peer group
6431 GNUNET_TESTING_daemons_running(struct GNUNET_TESTING_PeerGroup *pg)
6434 unsigned int running = 0;
6435 for (i = 0; i < pg->total; i++)
6437 if (pg->peers[i].daemon->running == GNUNET_YES)
6439 GNUNET_assert (running != -1);
6447 * Task to rate limit the number of outstanding peer shutdown
6448 * requests. This is necessary for making sure we don't do
6449 * too many ssh connections at once, but is generally nicer
6450 * to any system as well (graduated task starts, as opposed
6451 * to calling gnunet-arm N times all at once).
6454 schedule_churn_shutdown_task(void *cls,
6455 const struct GNUNET_SCHEDULER_TaskContext *tc)
6457 struct PeerShutdownContext *peer_shutdown_ctx = cls;
6458 struct ShutdownContext *shutdown_ctx;
6459 struct ChurnContext *churn_ctx;
6460 GNUNET_assert (peer_shutdown_ctx != NULL);
6461 shutdown_ctx = peer_shutdown_ctx->shutdown_ctx;
6462 GNUNET_assert (shutdown_ctx != NULL);
6463 churn_ctx = (struct ChurnContext *) shutdown_ctx->cb_cls;
6464 if (shutdown_ctx->outstanding > churn_ctx->pg->max_concurrent_ssh)
6465 GNUNET_SCHEDULER_add_delayed (
6466 GNUNET_TIME_relative_multiply (
6467 GNUNET_TIME_UNIT_MILLISECONDS,
6469 &schedule_churn_shutdown_task,
6473 shutdown_ctx->outstanding++;
6474 if (churn_ctx->service != NULL)
6475 GNUNET_TESTING_daemon_stop_service (peer_shutdown_ctx->daemon,
6477 shutdown_ctx->timeout, shutdown_ctx->cb,
6480 GNUNET_TESTING_daemon_stop (peer_shutdown_ctx->daemon,
6481 shutdown_ctx->timeout, shutdown_ctx->cb,
6482 shutdown_ctx, GNUNET_NO, GNUNET_YES);
6483 GNUNET_free (peer_shutdown_ctx);
6489 * Simulate churn by stopping some peers (and possibly
6490 * re-starting others if churn is called multiple times). This
6491 * function can only be used to create leave-join churn (peers "never"
6492 * leave for good). First "voff" random peers that are currently
6493 * online will be taken offline; then "von" random peers that are then
6494 * offline will be put back online. No notifications will be
6495 * generated for any of these operations except for the callback upon
6498 * @param pg handle for the peer group
6499 * @param service the service to churn off/on, NULL to churn peer
6500 * @param voff number of peers that should go offline
6501 * @param von number of peers that should come back online;
6502 * must be zero on first call (since "testbed_start"
6503 * always starts all of the peers)
6504 * @param timeout how long to wait for operations to finish before
6506 * @param cb function to call at the end
6507 * @param cb_cls closure for cb
6510 GNUNET_TESTING_daemons_churn(struct GNUNET_TESTING_PeerGroup *pg,
6512 unsigned int voff, unsigned int von,
6513 struct GNUNET_TIME_Relative timeout,
6514 GNUNET_TESTING_NotifyCompletion cb, void *cb_cls)
6516 struct ChurnContext *churn_ctx;
6517 struct ShutdownContext *shutdown_ctx;
6518 struct PeerShutdownContext *peer_shutdown_ctx;
6519 struct PeerRestartContext *peer_restart_ctx;
6520 struct ChurnRestartContext *churn_startup_ctx;
6522 unsigned int running;
6523 unsigned int stopped;
6524 unsigned int total_running;
6525 unsigned int total_stopped;
6527 unsigned int *running_arr;
6528 unsigned int *stopped_arr;
6529 unsigned int *running_permute;
6530 unsigned int *stopped_permute;
6533 shutdown_ctx = NULL;
6534 peer_shutdown_ctx = NULL;
6535 peer_restart_ctx = NULL;
6536 churn_startup_ctx = NULL;
6541 if ((von == 0) && (voff == 0)) /* No peers at all? */
6547 for (i = 0; i < pg->total; i++)
6549 if (service == NULL)
6551 if (pg->peers[i].daemon->running == GNUNET_YES)
6553 GNUNET_assert (running != -1);
6558 GNUNET_assert (stopped != -1);
6564 /* FIXME: make churned services a list! */
6565 pos = pg->peers[i].daemon->churned_services;
6566 /* FIXME: while (pos != NULL) */
6570 if (0 == strcasecmp(pos, service))
6576 GNUNET_assert (stopped != -1);
6578 /* FIXME: pos = pos->next; */
6582 GNUNET_assert (running != -1);
6590 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
6591 "Trying to stop more peers (%d) than are currently running (%d)!\n", voff, running);
6592 cb (cb_cls, "Trying to stop more peers than are currently running!");
6598 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
6599 "Trying to start more peers (%d) than are currently stopped (%d)!\n", von, stopped);
6600 cb (cb_cls, "Trying to start more peers than are currently stopped!");
6604 churn_ctx = GNUNET_malloc (sizeof (struct ChurnContext));
6606 if (service != NULL)
6607 churn_ctx->service = GNUNET_strdup(service);
6610 running_arr = GNUNET_malloc (running * sizeof (unsigned int));
6614 stopped_arr = GNUNET_malloc (stopped * sizeof (unsigned int));
6616 running_permute = NULL;
6617 stopped_permute = NULL;
6620 running_permute = GNUNET_CRYPTO_random_permute (GNUNET_CRYPTO_QUALITY_WEAK,
6623 stopped_permute = GNUNET_CRYPTO_random_permute (GNUNET_CRYPTO_QUALITY_WEAK,
6626 total_running = running;
6627 total_stopped = stopped;
6631 churn_ctx->num_to_start = von;
6632 churn_ctx->num_to_stop = voff;
6634 churn_ctx->cb_cls = cb_cls;
6637 for (i = 0; i < pg->total; i++)
6639 if (service == NULL)
6641 if (pg->peers[i].daemon->running == GNUNET_YES)
6643 GNUNET_assert ((running_arr != NULL) && (total_running > running));
6644 running_arr[running] = i;
6649 GNUNET_assert ((stopped_arr != NULL) && (total_stopped > stopped));
6650 stopped_arr[stopped] = i;
6656 /* FIXME: make churned services a list! */
6657 pos = pg->peers[i].daemon->churned_services;
6658 /* FIXME: while (pos != NULL) */
6661 GNUNET_assert ((stopped_arr != NULL) && (total_stopped > stopped));
6662 stopped_arr[stopped] = i;
6664 /* FIXME: pos = pos->next; */
6668 GNUNET_assert ((running_arr != NULL) && (total_running > running));
6669 running_arr[running] = i;
6675 GNUNET_assert (running >= voff);
6678 shutdown_ctx = GNUNET_malloc (sizeof (struct ShutdownContext));
6679 shutdown_ctx->cb = &churn_stop_callback;
6680 shutdown_ctx->cb_cls = churn_ctx;
6681 shutdown_ctx->total_peers = voff;
6682 shutdown_ctx->timeout = timeout;
6685 for (i = 0; i < voff; i++)
6688 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Stopping peer %d!\n", running_arr[running_permute[i]]);
6690 GNUNET_assert (running_arr != NULL);
6691 peer_shutdown_ctx = GNUNET_malloc (sizeof (struct PeerShutdownContext));
6692 peer_shutdown_ctx->daemon
6693 = pg->peers[running_arr[running_permute[i]]].daemon;
6694 peer_shutdown_ctx->shutdown_ctx = shutdown_ctx;
6695 GNUNET_SCHEDULER_add_now (&schedule_churn_shutdown_task,
6699 GNUNET_assert (stopped >= von);
6702 churn_startup_ctx = GNUNET_malloc (sizeof (struct ChurnRestartContext));
6703 churn_startup_ctx->churn_ctx = churn_ctx;
6704 churn_startup_ctx->timeout = timeout;
6705 churn_startup_ctx->pg = pg;
6707 for (i = 0; i < von; i++)
6710 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Starting up peer %d!\n", stopped_arr[stopped_permute[i]]);
6712 GNUNET_assert (stopped_arr != NULL);
6713 peer_restart_ctx = GNUNET_malloc (sizeof (struct PeerRestartContext));
6714 peer_restart_ctx->churn_restart_ctx = churn_startup_ctx;
6715 peer_restart_ctx->daemon
6716 = pg->peers[stopped_arr[stopped_permute[i]]].daemon;
6717 GNUNET_SCHEDULER_add_now (&schedule_churn_restart, peer_restart_ctx);
6720 GNUNET_free_non_null (running_arr);
6721 GNUNET_free_non_null (stopped_arr);
6722 GNUNET_free_non_null (running_permute);
6723 GNUNET_free_non_null (stopped_permute);
6727 * Start a given service for each of the peers in the peer group.
6729 * @param pg handle for the peer group
6730 * @param service the service to start
6731 * @param timeout how long to wait for operations to finish before
6733 * @param cb function to call once finished
6734 * @param cb_cls closure for cb
6738 GNUNET_TESTING_daemons_start_service (struct GNUNET_TESTING_PeerGroup *pg,
6740 struct GNUNET_TIME_Relative timeout,
6741 GNUNET_TESTING_NotifyCompletion cb,
6744 struct ServiceStartContext *start_ctx;
6745 struct PeerServiceStartContext *peer_start_ctx;
6748 GNUNET_assert(service != NULL);
6750 start_ctx = GNUNET_malloc(sizeof(struct ServiceStartContext));
6752 start_ctx->remaining = pg->total;
6754 start_ctx->cb_cls = cb_cls;
6755 start_ctx->service = GNUNET_strdup(service);
6756 start_ctx->timeout = timeout;
6758 for (i = 0; i < pg->total; i++)
6761 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Starting up service %s on peer %d!\n", service, stopped_arr[stopped_permute[i]]);
6763 peer_start_ctx = GNUNET_malloc (sizeof (struct PeerServiceStartContext));
6764 peer_start_ctx->start_ctx = start_ctx;
6765 peer_start_ctx->daemon = pg->peers[i].daemon;
6766 GNUNET_SCHEDULER_add_now (&schedule_service_start, peer_start_ctx);
6771 * Restart all peers in the given group.
6773 * @param pg the handle to the peer group
6774 * @param callback function to call on completion (or failure)
6775 * @param callback_cls closure for the callback function
6778 GNUNET_TESTING_daemons_restart(struct GNUNET_TESTING_PeerGroup *pg,
6779 GNUNET_TESTING_NotifyCompletion callback,
6782 struct RestartContext *restart_context;
6787 restart_context = GNUNET_malloc (sizeof (struct RestartContext));
6788 restart_context->peer_group = pg;
6789 restart_context->peers_restarted = 0;
6790 restart_context->callback = callback;
6791 restart_context->callback_cls = callback_cls;
6793 for (off = 0; off < pg->total; off++)
6795 GNUNET_TESTING_daemon_restart (pg->peers[off].daemon,
6796 &restart_callback, restart_context);
6803 * Start or stop an individual peer from the given group.
6805 * @param pg handle to the peer group
6806 * @param offset which peer to start or stop
6807 * @param desired_status GNUNET_YES to have it running, GNUNET_NO to stop it
6808 * @param timeout how long to wait for shutdown
6809 * @param cb function to call at the end
6810 * @param cb_cls closure for cb
6813 GNUNET_TESTING_daemons_vary(struct GNUNET_TESTING_PeerGroup *pg,
6814 unsigned int offset, int desired_status,
6815 struct GNUNET_TIME_Relative timeout,
6816 GNUNET_TESTING_NotifyCompletion cb, void *cb_cls)
6818 struct ShutdownContext *shutdown_ctx;
6819 struct ChurnRestartContext *startup_ctx;
6820 struct ChurnContext *churn_ctx;
6822 if (GNUNET_NO == desired_status)
6824 if (NULL != pg->peers[offset].daemon)
6826 shutdown_ctx = GNUNET_malloc (sizeof (struct ShutdownContext));
6827 churn_ctx = GNUNET_malloc (sizeof (struct ChurnContext));
6828 churn_ctx->num_to_start = 0;
6829 churn_ctx->num_to_stop = 1;
6831 churn_ctx->cb_cls = cb_cls;
6832 shutdown_ctx->cb_cls = churn_ctx;
6833 GNUNET_TESTING_daemon_stop (pg->peers[offset].daemon, timeout,
6834 &churn_stop_callback, shutdown_ctx,
6835 GNUNET_NO, GNUNET_YES);
6838 else if (GNUNET_YES == desired_status)
6840 if (NULL == pg->peers[offset].daemon)
6842 startup_ctx = GNUNET_malloc (sizeof (struct ChurnRestartContext));
6843 churn_ctx = GNUNET_malloc (sizeof (struct ChurnContext));
6844 churn_ctx->num_to_start = 1;
6845 churn_ctx->num_to_stop = 0;
6847 churn_ctx->cb_cls = cb_cls;
6848 startup_ctx->churn_ctx = churn_ctx;
6849 GNUNET_TESTING_daemon_start_stopped (pg->peers[offset].daemon,
6850 timeout, &churn_start_callback,
6860 * Callback for shutting down peers in a peer group.
6862 * @param cls closure (struct ShutdownContext)
6863 * @param emsg NULL on success
6866 internal_shutdown_callback(void *cls, const char *emsg)
6868 struct PeerShutdownContext *peer_shutdown_ctx = cls;
6869 struct ShutdownContext *shutdown_ctx = peer_shutdown_ctx->shutdown_ctx;
6871 struct OutstandingSSH *ssh_pos;
6873 shutdown_ctx->outstanding--;
6874 if (peer_shutdown_ctx->daemon->hostname != NULL)
6875 decrement_outstanding_at_host (peer_shutdown_ctx->daemon->hostname,
6880 shutdown_ctx->peers_down++;
6885 GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, "internal_shutdown_callback",
6886 "Failed to stop a peer: %s\n", emsg);
6888 shutdown_ctx->peers_failed++;
6891 if ((shutdown_ctx->cb != NULL) && (shutdown_ctx->peers_down
6892 + shutdown_ctx->peers_failed == shutdown_ctx->total_peers))
6894 if (shutdown_ctx->peers_failed > 0)
6895 shutdown_ctx->cb (shutdown_ctx->cb_cls,
6896 "Not all peers successfully shut down!");
6898 shutdown_ctx->cb (shutdown_ctx->cb_cls, NULL);
6900 GNUNET_free (shutdown_ctx->pg->peers);
6901 GNUNET_free_non_null(shutdown_ctx->pg->hostkey_data);
6902 for (off = 0; off < shutdown_ctx->pg->num_hosts; off++)
6904 GNUNET_free (shutdown_ctx->pg->hosts[off].hostname);
6905 GNUNET_free_non_null (shutdown_ctx->pg->hosts[off].username);
6907 GNUNET_free_non_null (shutdown_ctx->pg->hosts);
6908 while (NULL != (ssh_pos = shutdown_ctx->pg->ssh_head))
6910 GNUNET_CONTAINER_DLL_remove(shutdown_ctx->pg->ssh_head, shutdown_ctx->pg->ssh_tail, ssh_pos);
6911 GNUNET_free(ssh_pos);
6913 GNUNET_free (shutdown_ctx->pg);
6914 GNUNET_free (shutdown_ctx);
6916 GNUNET_free(peer_shutdown_ctx);
6921 * Task to rate limit the number of outstanding peer shutdown
6922 * requests. This is necessary for making sure we don't do
6923 * too many ssh connections at once, but is generally nicer
6924 * to any system as well (graduated task starts, as opposed
6925 * to calling gnunet-arm N times all at once).
6928 schedule_shutdown_task(void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
6930 struct PeerShutdownContext *peer_shutdown_ctx = cls;
6931 struct ShutdownContext *shutdown_ctx;
6933 GNUNET_assert (peer_shutdown_ctx != NULL);
6934 shutdown_ctx = peer_shutdown_ctx->shutdown_ctx;
6935 GNUNET_assert (shutdown_ctx != NULL);
6937 if ((shutdown_ctx->outstanding < shutdown_ctx->pg->max_concurrent_ssh)
6938 || ((peer_shutdown_ctx->daemon->hostname != NULL)
6939 && (count_outstanding_at_host (peer_shutdown_ctx->daemon->hostname,
6941 < shutdown_ctx->pg->max_concurrent_ssh)))
6943 if (peer_shutdown_ctx->daemon->hostname != NULL)
6944 increment_outstanding_at_host (peer_shutdown_ctx->daemon->hostname,
6946 shutdown_ctx->outstanding++;
6947 GNUNET_TESTING_daemon_stop (peer_shutdown_ctx->daemon,
6948 shutdown_ctx->timeout,
6949 &internal_shutdown_callback, peer_shutdown_ctx,
6950 shutdown_ctx->delete_files, GNUNET_NO);
6953 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_MILLISECONDS,
6955 &schedule_shutdown_task, peer_shutdown_ctx);
6960 * Read a testing hosts file based on a configuration.
6961 * Returns a DLL of hosts (caller must free!) on success
6962 * or NULL on failure.
6964 * @param cfg a configuration with a testing section
6966 * @return DLL of hosts on success, NULL on failure
6968 struct GNUNET_TESTING_Host *
6969 GNUNET_TESTING_hosts_load (const struct GNUNET_CONFIGURATION_Handle *cfg)
6971 struct GNUNET_TESTING_Host *hosts;
6972 struct GNUNET_TESTING_Host *temphost;
6980 /* Check for a hostfile containing user@host:port triples */
6982 != GNUNET_CONFIGURATION_get_value_string (cfg, "testing", "hostfile",
6989 if (hostfile != NULL)
6991 if (GNUNET_OK != GNUNET_DISK_file_test (hostfile))
6992 GNUNET_DISK_fn_write (hostfile, NULL, 0, GNUNET_DISK_PERM_USER_READ
6993 | GNUNET_DISK_PERM_USER_WRITE);
6994 if ((0 != STAT (hostfile, &frstat)) || (frstat.st_size == 0))
6996 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
6997 "Could not open file specified for host list, ending test!");
6998 GNUNET_free(hostfile);
7002 data = GNUNET_malloc_large (frstat.st_size);
7003 GNUNET_assert(data != NULL);
7005 != GNUNET_DISK_fn_read (hostfile, data, frstat.st_size))
7008 GNUNET_ERROR_TYPE_ERROR,
7009 "Could not read file %s specified for host list, ending test!",
7011 GNUNET_free (hostfile);
7016 GNUNET_free_non_null(hostfile);
7020 while (count < frstat.st_size - 1)
7023 if (((data[count] == '\n')) && (buf != &data[count]))
7026 temphost = GNUNET_malloc(sizeof(struct GNUNET_TESTING_Host));
7027 ret = sscanf (buf, "%a[a-zA-Z0-9_]@%a[a-zA-Z0-9.]:%hd",
7028 &temphost->username, &temphost->hostname,
7033 GNUNET_ERROR_TYPE_DEBUG,
7034 "Successfully read host %s, port %d and user %s from file\n",
7035 temphost->hostname, temphost->port,
7036 temphost->username);
7040 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
7041 "Error reading line `%s' in hostfile\n", buf);
7042 GNUNET_free(temphost);
7043 buf = &data[count + 1];
7046 temphost->next = hosts;
7048 buf = &data[count + 1];
7050 else if ((data[count] == '\n') || (data[count] == '\0'))
7051 buf = &data[count + 1];
7054 GNUNET_free_non_null(data);
7060 * Shutdown all peers started in the given group.
7062 * @param pg handle to the peer group
7063 * @param timeout how long to wait for shutdown
7064 * @param cb callback to notify upon success or failure
7065 * @param cb_cls closure for cb
7068 GNUNET_TESTING_daemons_stop(struct GNUNET_TESTING_PeerGroup *pg,
7069 struct GNUNET_TIME_Relative timeout,
7070 GNUNET_TESTING_NotifyCompletion cb, void *cb_cls)
7073 struct ShutdownContext *shutdown_ctx;
7074 struct PeerShutdownContext *peer_shutdown_ctx;
7076 struct PeerConnection *conn_iter;
7077 struct PeerConnection *temp_conn;
7080 GNUNET_assert (pg->total > 0);
7082 shutdown_ctx = GNUNET_malloc (sizeof (struct ShutdownContext));
7083 shutdown_ctx->delete_files = GNUNET_CONFIGURATION_get_value_yesno (pg->cfg,
7086 shutdown_ctx->cb = cb;
7087 shutdown_ctx->cb_cls = cb_cls;
7088 shutdown_ctx->total_peers = pg->total;
7089 shutdown_ctx->timeout = timeout;
7090 shutdown_ctx->pg = pg;
7091 /* shtudown_ctx->outstanding = 0; */
7093 for (off = 0; off < pg->total; off++)
7095 GNUNET_assert (NULL != pg->peers[off].daemon);
7096 peer_shutdown_ctx = GNUNET_malloc (sizeof (struct PeerShutdownContext));
7097 peer_shutdown_ctx->daemon = pg->peers[off].daemon;
7098 peer_shutdown_ctx->shutdown_ctx = shutdown_ctx;
7099 GNUNET_SCHEDULER_add_now (&schedule_shutdown_task, peer_shutdown_ctx);
7101 if (NULL != pg->peers[off].cfg)
7103 GNUNET_CONFIGURATION_destroy (pg->peers[off].cfg);
7104 pg->peers[off].cfg = NULL;
7107 conn_iter = pg->peers[off].allowed_peers_head;
7108 while (conn_iter != NULL)
7110 temp_conn = conn_iter->next;
7111 GNUNET_free(conn_iter);
7112 conn_iter = temp_conn;
7115 conn_iter = pg->peers[off].connect_peers_head;
7116 while (conn_iter != NULL)
7118 temp_conn = conn_iter->next;
7119 GNUNET_free(conn_iter);
7120 conn_iter = temp_conn;
7123 conn_iter = pg->peers[off].blacklisted_peers_head;
7124 while (conn_iter != NULL)
7126 temp_conn = conn_iter->next;
7127 GNUNET_free(conn_iter);
7128 conn_iter = temp_conn;
7131 conn_iter = pg->peers[off].connect_peers_working_set_head;
7132 while (conn_iter != NULL)
7134 temp_conn = conn_iter->next;
7135 GNUNET_free(conn_iter);
7136 conn_iter = temp_conn;
7139 if (pg->peers[off].allowed_peers != NULL)
7140 GNUNET_CONTAINER_multihashmap_destroy (pg->peers[off].allowed_peers);
7141 if (pg->peers[off].connect_peers != NULL)
7142 GNUNET_CONTAINER_multihashmap_destroy (pg->peers[off].connect_peers);
7143 if (pg->peers[off].blacklisted_peers != NULL)
7144 GNUNET_CONTAINER_multihashmap_destroy (pg->
7145 peers[off].blacklisted_peers);
7150 /* end of testing_group.c */