2 This file is part of GNUnet
3 (C) 2008--2012 Christian Grothoff (and other contributing authors)
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22 * @file testbed/testbed_api_testbed.c
23 * @brief high-level testbed management
24 * @author Christian Grothoff
25 * @author Sree Harsha Totakura
29 #include "gnunet_util_lib.h"
30 #include "gnunet_testbed_service.h"
31 #include "testbed_api_peers.h"
32 #include "testbed_api_hosts.h"
33 #include "testbed_api_topology.h"
36 * Generic loggins shorthand
38 #define LOG(kind,...) \
39 GNUNET_log_from (kind, "testbed-api-testbed", __VA_ARGS__)
42 * Debug logging shortcut
45 LOG (GNUNET_ERROR_TYPE_DEBUG, __VA_ARGS__)
53 * The testbed operation handle
55 struct GNUNET_TESTBED_Operation *op;
58 * Context information for GNUNET_TESTBED_run()
60 struct RunContext *rc;
68 * The next pointer for DLL
70 struct DLLOperation *next;
73 * The prev pointer for DLL
75 struct DLLOperation *prev;
80 * States of RunContext
90 * Controllers on given hosts started and linked
100 * The testbed run is ready and the master callback can be called now. At this
101 * time the peers are all started and if a topology is provided in the
102 * configuration the topology would have been attempted
107 /* * Peers are stopped */
109 /* RC_PEERS_STOPPED, */
112 /* * Peers are destroyed */
114 /* RC_PEERS_DESTROYED */
117 * All peers shutdown (stopped and destroyed)
129 * The controller handle
131 struct GNUNET_TESTBED_Controller *c;
134 * The configuration of the controller. This is based on the cfg given to the
135 * function GNUNET_TESTBED_run(). We also use this config as a template while
138 struct GNUNET_CONFIGURATION_Handle *cfg;
141 * Handle to the host on which the controller runs
143 struct GNUNET_TESTBED_Host *h;
146 * The handle to the controller process
148 struct GNUNET_TESTBED_ControllerProc *cproc;
151 * The callback to use as controller callback
153 GNUNET_TESTBED_ControllerCallback cc;
156 * The pointer to the controller callback
161 * The trusted IP string
166 * TestMaster callback to call when testbed initialization is done
168 GNUNET_TESTBED_TestMaster test_master;
171 * The closure for the TestMaster callback
173 void *test_master_cls;
176 * The head element of DLL operations
178 struct DLLOperation *dll_op_head;
181 * The tail element of DLL operations
183 struct DLLOperation *dll_op_tail;
186 * An array of hosts loaded from the hostkeys file
188 struct GNUNET_TESTBED_Host **hosts;
191 * The handle for whether a host is habitable or not
193 struct GNUNET_TESTBED_HostHabitableCheckHandle **hc_handles;
196 * Array of peers which we create
198 struct GNUNET_TESTBED_Peer **peers;
201 * The topology generation operation. Will be null if no topology is set in
204 struct GNUNET_TESTBED_Operation *topology_operation;
207 * The file containing topology data. Only used if the topology is set to 'FROM_FILE'
212 * Host registration handle
214 struct GNUNET_TESTBED_HostRegistrationHandle *reg_handle;
217 * Profiling start time
219 struct GNUNET_TIME_Absolute pstart_time;
222 * Host registration task
224 GNUNET_SCHEDULER_TaskIdentifier register_hosts_task;
227 * Task to be run while shutting down
229 GNUNET_SCHEDULER_TaskIdentifier shutdown_run_task;
232 * The event mask for the controller
237 * State of this context
242 * The topology which has to be achieved with the peers started in this context
244 enum GNUNET_TESTBED_TopologyOption topology;
247 * Have we already shutdown
252 * Number of hosts in the given host file
254 unsigned int num_hosts;
257 * Number of registered hosts. Also used as a counter while checking
258 * habitabillity of hosts
260 unsigned int reg_hosts;
263 * Current peer count for an operation; Set this to 0 and increment for each
264 * successful operation on a peer
266 unsigned int peer_count;
269 * number of peers to start
271 unsigned int num_peers;
274 * Expected overlay connects. Should be zero if no topology is relavant
279 * Number of random links to established
281 unsigned int random_links;
287 * Function to return the string representation of the duration between current
288 * time and `pstart_time' in `RunContext'
290 * @param rc the RunContext
291 * @return the representation string; this is NOT reentrant
294 prof_time (struct RunContext *rc)
296 struct GNUNET_TIME_Relative ptime;
298 ptime = GNUNET_TIME_absolute_get_duration (rc->pstart_time);
299 return GNUNET_STRINGS_relative_time_to_string (ptime, GNUNET_YES);
304 * Task for starting peers
306 * @param cls the RunHandle
307 * @param tc the task context from scheduler
310 start_peers_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
312 struct RunContext *rc = cls;
313 struct DLLOperation *dll_op;
316 DEBUG ("Starting Peers\n");
317 rc->pstart_time = GNUNET_TIME_absolute_get ();
318 for (peer = 0; peer < rc->num_peers; peer++)
320 dll_op = GNUNET_malloc (sizeof (struct DLLOperation));
321 dll_op->op = GNUNET_TESTBED_peer_start (NULL, rc->peers[peer], NULL, NULL);
322 dll_op->cls = rc->peers[peer];
323 GNUNET_CONTAINER_DLL_insert_tail (rc->dll_op_head, rc->dll_op_tail, dll_op);
330 * Functions of this signature are called when a peer has been successfully
333 * @param cls the closure from GNUNET_TESTBED_peer_create()
334 * @param peer the handle for the created peer; NULL on any error during
336 * @param emsg NULL if peer is not NULL; else MAY contain the error description
339 peer_create_cb (void *cls, struct GNUNET_TESTBED_Peer *peer, const char *emsg)
341 struct DLLOperation *dll_op = cls;
342 struct RunContext *rc;
344 GNUNET_assert (NULL != dll_op);
346 GNUNET_assert (NULL != rc);
347 GNUNET_CONTAINER_DLL_remove (rc->dll_op_head, rc->dll_op_tail, dll_op);
348 GNUNET_TESTBED_operation_done (dll_op->op);
349 GNUNET_free (dll_op);
353 LOG (GNUNET_ERROR_TYPE_WARNING, "Error while creating a peer: %s\n",
355 /* FIXME: GNUNET_TESTBED_shutdown_run()? */
358 rc->peers[rc->peer_count] = peer;
360 if (rc->peer_count < rc->num_peers)
362 DEBUG ("%u peers created in %s\n", rc->num_peers, prof_time (rc));
363 rc->state = RC_PEERS_CREATED;
364 GNUNET_SCHEDULER_add_now (&start_peers_task, rc);
369 * Assuming all peers have been destroyed cleanup run handle
371 * @param cls the run handle
372 * @param tc the task context from scheduler
375 cleanup_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
377 struct RunContext *rc = cls;
380 GNUNET_assert (GNUNET_SCHEDULER_NO_TASK == rc->register_hosts_task);
381 GNUNET_assert (NULL == rc->reg_handle);
382 GNUNET_assert (NULL == rc->peers);
383 GNUNET_assert (NULL == rc->hc_handles);
384 GNUNET_assert (RC_PEERS_SHUTDOWN == rc->state);
385 GNUNET_assert (NULL == rc->dll_op_head);
387 GNUNET_TESTBED_controller_disconnect (rc->c);
388 if (NULL != rc->cproc)
389 GNUNET_TESTBED_controller_stop (rc->cproc);
391 GNUNET_TESTBED_host_destroy (rc->h);
392 for (hid = 0; hid < rc->num_hosts; hid++)
393 GNUNET_TESTBED_host_destroy (rc->hosts[hid]);
394 GNUNET_free_non_null (rc->hosts);
396 GNUNET_CONFIGURATION_destroy (rc->cfg);
397 GNUNET_free_non_null (rc->topo_file);
398 GNUNET_free_non_null (rc->trusted_ip);
404 * Stops the testbed run and releases any used resources
406 * @param cls the tesbed run handle
407 * @param tc the task context from scheduler
410 shutdown_run (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc);
414 * Function to shutdown now
416 * @param rc the RunContext
419 shutdown_now (struct RunContext *rc)
421 if (GNUNET_YES == rc->shutdown)
423 if (GNUNET_SCHEDULER_NO_TASK != rc->shutdown_run_task)
424 GNUNET_SCHEDULER_cancel (rc->shutdown_run_task);
425 rc->shutdown_run_task = GNUNET_SCHEDULER_add_now (&shutdown_run, rc);
430 * Stops the testbed run and releases any used resources
432 * @param cls the tesbed run handle
433 * @param tc the task context from scheduler
436 shutdown_run (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
438 struct RunContext *rc = cls;
439 struct DLLOperation *dll_op;
442 GNUNET_assert (GNUNET_SCHEDULER_NO_TASK != rc->shutdown_run_task);
443 rc->shutdown_run_task = GNUNET_SCHEDULER_NO_TASK;
444 GNUNET_assert (GNUNET_NO == rc->shutdown);
445 rc->shutdown = GNUNET_YES;
446 if (NULL != rc->hc_handles)
448 for (nhost = 0; nhost < rc->num_hosts; nhost++)
449 if (NULL != rc->hc_handles[nhost])
450 GNUNET_TESTBED_is_host_habitable_cancel (rc->hc_handles[nhost]);
451 GNUNET_free (rc->hc_handles);
452 rc->hc_handles = NULL;
454 /* Stop register hosts task if it is running */
455 if (GNUNET_SCHEDULER_NO_TASK != rc->register_hosts_task)
457 GNUNET_SCHEDULER_cancel (rc->register_hosts_task);
458 rc->register_hosts_task = GNUNET_SCHEDULER_NO_TASK;
460 if (NULL != rc->reg_handle)
462 GNUNET_TESTBED_cancel_registration (rc->reg_handle);
463 rc->reg_handle = NULL;
465 /* cancel any exiting operations */
466 if (NULL != rc->dll_op_head)
468 while (NULL != (dll_op = rc->dll_op_head))
470 GNUNET_TESTBED_operation_done (dll_op->op);
471 GNUNET_CONTAINER_DLL_remove (rc->dll_op_head, rc->dll_op_tail, dll_op);
472 GNUNET_free (dll_op);
477 if (NULL != rc->peers)
479 if (NULL != rc->topology_operation)
481 GNUNET_TESTBED_operation_done (rc->topology_operation);
482 rc->topology_operation = NULL;
484 if (RC_INIT == rc->state)
485 rc->state = RC_READY; /* Even though we haven't called the master callback */
486 dll_op = GNUNET_malloc (sizeof (struct DLLOperation));
487 dll_op->op = GNUNET_TESTBED_shutdown_peers (rc->c, dll_op, NULL, NULL);
488 DEBUG ("Shutting down peers\n");
489 rc->pstart_time = GNUNET_TIME_absolute_get ();
490 GNUNET_CONTAINER_DLL_insert_tail (rc->dll_op_head, rc->dll_op_tail,
495 rc->state = RC_PEERS_SHUTDOWN; /* No peers are present so we consider the
496 * state where all peers are SHUTDOWN */
497 GNUNET_SCHEDULER_add_now (&cleanup_task, rc);
502 * Task to call master task
504 * @param cls the run context
505 * @param tc the task context
508 call_master (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
510 struct RunContext *rc = cls;
512 if (NULL != rc->topology_operation)
514 DEBUG ("Overlay topology generated in %s\n", prof_time (rc));
515 GNUNET_TESTBED_operation_done (rc->topology_operation);
516 rc->topology_operation = NULL;
518 if (NULL != rc->test_master)
519 rc->test_master (rc->test_master_cls, rc->num_peers, rc->peers);
524 * Callbacks of this type are called when topology configuration is completed
526 * @param cls the operation closure given to
527 * GNUNET_TESTBED_overlay_configure_topology_va() and
528 * GNUNET_TESTBED_overlay_configure() calls
529 * @param nsuccess the number of successful overlay connects
530 * @param nfailures the number of overlay connects which failed
533 topology_completion_callback (void *cls, unsigned int nsuccess,
534 unsigned int nfailures)
536 struct RunContext *rc = cls;
538 rc->state = RC_READY;
539 GNUNET_SCHEDULER_add_continuation (&call_master, rc,
540 GNUNET_SCHEDULER_REASON_PREREQ_DONE);
545 * Function to create peers
547 * @param rc the RunContext
550 create_peers (struct RunContext *rc)
552 struct DLLOperation *dll_op;
555 DEBUG ("Creating peers\n");
556 rc->pstart_time = GNUNET_TIME_absolute_get ();
558 GNUNET_malloc (sizeof (struct GNUNET_TESTBED_Peer *) * rc->num_peers);
559 GNUNET_assert (NULL != rc->c);
561 for (peer = 0; peer < rc->num_peers; peer++)
563 dll_op = GNUNET_malloc (sizeof (struct DLLOperation));
566 GNUNET_TESTBED_peer_create (rc->c,
568 rc->num_hosts) ? rc->h : rc->hosts[peer %
570 rc->cfg, peer_create_cb, dll_op);
571 GNUNET_CONTAINER_DLL_insert_tail (rc->dll_op_head, rc->dll_op_tail, dll_op);
577 * Signature of the event handler function called by the
578 * respective event controller.
581 * @param event information about the event
584 event_cb (void *cls, const struct GNUNET_TESTBED_EventInformation *event)
586 struct RunContext *rc = cls;
587 struct DLLOperation *dll_op;
589 if (RC_INIT == rc->state)
593 case GNUNET_TESTBED_ET_OPERATION_FINISHED:
594 dll_op = event->details.operation_finished.op_cls;
595 if (NULL != event->details.operation_finished.emsg)
597 LOG (GNUNET_ERROR_TYPE_ERROR, _("Linking controllers failed. Exiting"));
602 GNUNET_assert (event->details.operation_finished.operation == dll_op->op);
603 GNUNET_CONTAINER_DLL_remove (rc->dll_op_head, rc->dll_op_tail, dll_op);
604 GNUNET_TESTBED_operation_done (dll_op->op);
605 GNUNET_free (dll_op);
606 if (rc->reg_hosts == rc->num_hosts)
608 rc->state = RC_LINKED;
618 for (dll_op = rc->dll_op_head; NULL != dll_op; dll_op = dll_op->next)
620 if ((GNUNET_TESTBED_ET_OPERATION_FINISHED == event->type) &&
621 (event->details.operation_finished.operation == dll_op->op))
626 GNUNET_CONTAINER_DLL_remove (rc->dll_op_head, rc->dll_op_tail, dll_op);
627 GNUNET_TESTBED_operation_done (dll_op->op);
628 GNUNET_free (dll_op);
632 case RC_PEERS_CREATED:
634 rc->state = RC_PEERS_SHUTDOWN;
635 GNUNET_free (rc->peers);
637 DEBUG ("Peers shut down in %s\n", prof_time (rc));
638 GNUNET_SCHEDULER_add_now (&cleanup_task, rc);
646 if ((0 != (rc->event_mask & (1LL << event->type))) && (NULL != rc->cc))
647 rc->cc (rc->cc_cls, event);
648 if (GNUNET_TESTBED_ET_PEER_START != event->type)
650 for (dll_op = rc->dll_op_head; NULL != dll_op; dll_op = dll_op->next)
651 if ((NULL != dll_op->cls) &&
652 (event->details.peer_start.peer == dll_op->cls))
654 if (NULL == dll_op) /* Not our operation */
656 GNUNET_CONTAINER_DLL_remove (rc->dll_op_head, rc->dll_op_tail, dll_op);
657 GNUNET_TESTBED_operation_done (dll_op->op);
658 GNUNET_free (dll_op);
660 if (rc->peer_count < rc->num_peers)
662 DEBUG ("%u peers started in %s\n", rc->num_peers, prof_time (rc));
663 if (GNUNET_TESTBED_TOPOLOGY_NONE != rc->topology)
665 if ((GNUNET_TESTBED_TOPOLOGY_ERDOS_RENYI == rc->topology) ||
666 (GNUNET_TESTBED_TOPOLOGY_SMALL_WORLD_RING == rc->topology) ||
667 (GNUNET_TESTBED_TOPOLOGY_SMALL_WORLD == rc->topology))
669 rc->topology_operation =
670 GNUNET_TESTBED_overlay_configure_topology (NULL, rc->num_peers,
671 rc->peers, &rc->num_oc,
672 &topology_completion_callback,
676 GNUNET_TESTBED_TOPOLOGY_OPTION_END);
678 else if (GNUNET_TESTBED_TOPOLOGY_FROM_FILE == rc->topology)
680 GNUNET_assert (NULL != rc->topo_file);
681 rc->topology_operation =
682 GNUNET_TESTBED_overlay_configure_topology (NULL, rc->num_peers,
683 rc->peers, &rc->num_oc,
684 &topology_completion_callback,
688 GNUNET_TESTBED_TOPOLOGY_OPTION_END);
691 rc->topology_operation =
692 GNUNET_TESTBED_overlay_configure_topology (NULL, rc->num_peers,
693 rc->peers, &rc->num_oc,
694 &topology_completion_callback,
697 GNUNET_TESTBED_TOPOLOGY_OPTION_END);
698 if (NULL == rc->topology_operation)
699 LOG (GNUNET_ERROR_TYPE_WARNING,
700 "Not generating topology. Check number of peers\n");
703 DEBUG ("Creating overlay topology\n");
704 rc->pstart_time = GNUNET_TIME_absolute_get ();
708 rc->state = RC_READY;
709 GNUNET_SCHEDULER_add_continuation (&call_master, rc,
710 GNUNET_SCHEDULER_REASON_PREREQ_DONE);
715 * Task to register all hosts available in the global host list
717 * @param cls the RunContext
718 * @param tc the scheduler task context
721 register_hosts (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc);
725 * Callback which will be called to after a host registration succeeded or failed
727 * @param cls the closure
728 * @param emsg the error message; NULL if host registration is successful
731 host_registration_completion (void *cls, const char *emsg)
733 struct RunContext *rc = cls;
735 rc->reg_handle = NULL;
738 LOG (GNUNET_ERROR_TYPE_WARNING,
739 _("Host registration failed for a host. Error: %s\n"), emsg);
743 rc->register_hosts_task = GNUNET_SCHEDULER_add_now (®ister_hosts, rc);
748 * Task to register all hosts available in the global host list
750 * @param cls RunContext
751 * @param tc the scheduler task context
754 register_hosts (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
756 struct RunContext *rc = cls;
757 struct DLLOperation *dll_op;
760 rc->register_hosts_task = GNUNET_SCHEDULER_NO_TASK;
761 if (rc->reg_hosts == rc->num_hosts)
763 DEBUG ("All hosts successfully registered\n");
765 for (slave = 0; slave < rc->num_hosts; slave++)
767 dll_op = GNUNET_malloc (sizeof (struct DLLOperation));
770 GNUNET_TESTBED_controller_link (dll_op, rc->c, rc->hosts[slave],
771 rc->h, rc->cfg, GNUNET_YES);
772 GNUNET_CONTAINER_DLL_insert_tail (rc->dll_op_head, rc->dll_op_tail,
779 GNUNET_TESTBED_register_host (rc->c, rc->hosts[rc->reg_hosts],
780 host_registration_completion, rc);
786 * Callback to signal successfull startup of the controller process
788 * @param cls the closure from GNUNET_TESTBED_controller_start()
789 * @param cfg the configuration with which the controller has been started;
790 * NULL if status is not GNUNET_OK
791 * @param status GNUNET_OK if the startup is successfull; GNUNET_SYSERR if not,
792 * GNUNET_TESTBED_controller_stop() shouldn't be called in this case
795 controller_status_cb (void *cls, const struct GNUNET_CONFIGURATION_Handle *cfg,
798 struct RunContext *rc = cls;
801 if (status != GNUNET_OK)
803 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
804 "Controller crash detected. Shutting down.\n");
806 if (NULL != rc->peers)
808 GNUNET_free (rc->peers);
813 GNUNET_TESTBED_controller_disconnect (rc->c);
819 GNUNET_CONFIGURATION_destroy (rc->cfg);
820 rc->cfg = GNUNET_CONFIGURATION_dup (cfg);
821 event_mask = rc->event_mask;
822 event_mask |= (1LL << GNUNET_TESTBED_ET_OPERATION_FINISHED);
823 event_mask |= (1LL << GNUNET_TESTBED_ET_PEER_START);
824 if (rc->topology < GNUNET_TESTBED_TOPOLOGY_NONE)
825 event_mask |= GNUNET_TESTBED_ET_CONNECT;
827 GNUNET_TESTBED_controller_connect (rc->cfg, rc->h, event_mask, &event_cb,
829 if (0 < rc->num_hosts)
832 rc->register_hosts_task = GNUNET_SCHEDULER_add_now (®ister_hosts, rc);
835 rc->state = RC_LINKED;
841 * Callback function invoked for each interface found.
844 * @param name name of the interface (can be NULL for unknown)
845 * @param isDefault is this presumably the default interface
846 * @param addr address of this interface (can be NULL for unknown or unassigned)
847 * @param broadcast_addr the broadcast address (can be NULL for unknown or unassigned)
848 * @param netmask the network mask (can be NULL for unknown or unassigned))
849 * @param addrlen length of the address
850 * @return GNUNET_OK to continue iteration, GNUNET_SYSERR to abort
853 netint_proc (void *cls, const char *name, int isDefault,
854 const struct sockaddr *addr, const struct sockaddr *broadcast_addr,
855 const struct sockaddr *netmask, socklen_t addrlen)
857 struct RunContext *rc = cls;
858 char hostip[NI_MAXHOST];
861 if (sizeof (struct sockaddr_in) != addrlen)
862 return GNUNET_OK; /* Only consider IPv4 for now */
864 getnameinfo (addr, addrlen, hostip, NI_MAXHOST, NULL, 0, NI_NUMERICHOST))
865 GNUNET_log_strerror (GNUNET_ERROR_TYPE_WARNING, "getnameinfo");
866 if (NULL == rc->trusted_ip)
868 rc->trusted_ip = GNUNET_strdup (hostip);
871 (void) GNUNET_asprintf (&buf, "%s; %s", rc->trusted_ip, hostip);
872 GNUNET_free (rc->trusted_ip);
873 rc->trusted_ip = buf;
879 * Callbacks of this type are called by GNUNET_TESTBED_is_host_habitable to
880 * inform whether the given host is habitable or not. The Handle returned by
881 * GNUNET_TESTBED_is_host_habitable() is invalid after this callback is called
884 * @param host the host whose status is being reported; will be NULL if the host
885 * given to GNUNET_TESTBED_is_host_habitable() is NULL
886 * @param status GNUNET_YES if it is habitable; GNUNET_NO if not
889 host_habitable_cb (void *cls, const struct GNUNET_TESTBED_Host *host,
892 struct RunContext *rc = cls;
893 struct GNUNET_TESTBED_Host **old_hosts;
896 for (nhost = 0; nhost < rc->num_hosts; nhost++)
898 if (host == rc->hosts[nhost])
901 GNUNET_assert (nhost != rc->num_hosts);
902 rc->hc_handles[nhost] = NULL;
903 if (GNUNET_NO == status)
905 if ((NULL != host) && (NULL != GNUNET_TESTBED_host_get_hostname (host)))
906 LOG (GNUNET_ERROR_TYPE_ERROR, _("Host %s cannot start testbed\n"),
907 GNUNET_TESTBED_host_get_hostname (host));
909 LOG (GNUNET_ERROR_TYPE_ERROR,
910 _("Testbed cannot be started on localhost\n"));
915 if (rc->reg_hosts < rc->num_hosts)
917 GNUNET_free (rc->hc_handles);
918 rc->hc_handles = NULL;
919 rc->h = rc->hosts[0];
921 if (0 < rc->num_hosts)
923 old_hosts = rc->hosts;
925 GNUNET_malloc (sizeof (struct GNUNET_TESTBED_Host *) * rc->num_hosts);
926 memcpy (rc->hosts, &old_hosts[1],
927 (sizeof (struct GNUNET_TESTBED_Host *) * rc->num_hosts));
928 GNUNET_free (old_hosts);
932 GNUNET_free (rc->hosts);
935 GNUNET_OS_network_interfaces_list (netint_proc, rc);
936 if (NULL == rc->trusted_ip)
937 rc->trusted_ip = GNUNET_strdup ("127.0.0.1");
939 GNUNET_TESTBED_controller_start (rc->trusted_ip, rc->h, rc->cfg,
940 &controller_status_cb, rc);
941 GNUNET_free (rc->trusted_ip);
942 rc->trusted_ip = NULL;
943 if (NULL == rc->cproc)
945 LOG (GNUNET_ERROR_TYPE_ERROR, _("Cannot start the master controller"));
952 * Convenience method for running a testbed with
953 * a single call. Underlay and overlay topology
954 * are configured using the "UNDERLAY" and "OVERLAY"
955 * options in the "[testbed]" section of the configuration\
956 * (with possible options given in "UNDERLAY_XXX" and/or
959 * The testbed is to be terminated using a call to
960 * "GNUNET_SCHEDULER_shutdown".
962 * @param host_filename name of the file with the 'hosts', NULL
963 * to run everything on 'localhost'
964 * @param cfg configuration to use (for testbed, controller and peers)
965 * @param num_peers number of peers to start; FIXME: maybe put that ALSO into cfg?
966 * @param event_mask bit mask with set of events to call 'cc' for;
967 * or-ed values of "1LL" shifted by the
968 * respective 'enum GNUNET_TESTBED_EventType'
969 * (i.e. "(1LL << GNUNET_TESTBED_ET_CONNECT) || ...")
970 * @param cc controller callback to invoke on events; This callback is called
971 * for all peer start events even if GNUNET_TESTBED_ET_PEER_START isn't
972 * set in the event_mask as this is the only way get access to the
973 * handle of each peer
974 * @param cc_cls closure for cc
975 * @param test_master this callback will be called once the test is ready
976 * @param test_master_cls closure for 'test_master'.
979 GNUNET_TESTBED_run (const char *host_filename,
980 const struct GNUNET_CONFIGURATION_Handle *cfg,
981 unsigned int num_peers, uint64_t event_mask,
982 GNUNET_TESTBED_ControllerCallback cc, void *cc_cls,
983 GNUNET_TESTBED_TestMaster test_master,
984 void *test_master_cls)
986 struct RunContext *rc;
988 unsigned long long random_links;
992 GNUNET_assert (num_peers > 0);
993 rc = GNUNET_malloc (sizeof (struct RunContext));
994 rc->cfg = GNUNET_CONFIGURATION_dup (cfg);
996 rc->num_hosts = GNUNET_TESTBED_hosts_load_from_loadleveler (rc->cfg,
998 if (0 == rc->num_hosts)
1000 LOG (GNUNET_ERROR_TYPE_WARNING,
1001 _("No hosts loaded from LoadLeveler. Need at least one host\n"));
1005 if (NULL != host_filename)
1008 GNUNET_TESTBED_hosts_load_from_file (host_filename, rc->cfg,
1010 if (0 == rc->num_hosts)
1012 LOG (GNUNET_ERROR_TYPE_WARNING,
1013 _("No hosts loaded. Need at least one host\n"));
1018 rc->h = GNUNET_TESTBED_host_create (NULL, NULL, rc->cfg, 0);
1020 rc->num_peers = num_peers;
1021 rc->event_mask = event_mask;
1023 rc->cc_cls = cc_cls;
1024 rc->test_master = test_master;
1025 rc->test_master_cls = test_master_cls;
1026 rc->state = RC_INIT;
1027 rc->topology = GNUNET_TESTBED_TOPOLOGY_NONE;
1029 GNUNET_CONFIGURATION_get_value_string (rc->cfg, "testbed",
1030 "OVERLAY_TOPOLOGY", &topology))
1032 if (GNUNET_NO == GNUNET_TESTBED_topology_get_ (&rc->topology, topology))
1034 GNUNET_log_config_invalid (GNUNET_ERROR_TYPE_ERROR, "testbed",
1037 ("Specified topology must be supported by testbed"));
1039 GNUNET_free (topology);
1041 switch (rc->topology)
1043 case GNUNET_TESTBED_TOPOLOGY_ERDOS_RENYI:
1044 case GNUNET_TESTBED_TOPOLOGY_SMALL_WORLD_RING:
1045 case GNUNET_TESTBED_TOPOLOGY_SMALL_WORLD:
1047 GNUNET_CONFIGURATION_get_value_number (rc->cfg, "testbed",
1048 "OVERLAY_RANDOM_LINKS",
1051 /* OVERLAY option RANDOM & SMALL_WORLD_RING requires OVERLAY_RANDOM_LINKS
1052 * option to be set to the number of random links to be established */
1053 GNUNET_log_config_missing (GNUNET_ERROR_TYPE_ERROR, "testbed",
1054 "OVERLAY_RANDOM_LINKS");
1057 if (random_links > UINT32_MAX)
1059 GNUNET_break (0); /* Too big number */
1062 rc->random_links = (unsigned int) random_links;
1064 case GNUNET_TESTBED_TOPOLOGY_FROM_FILE:
1066 GNUNET_CONFIGURATION_get_value_string (rc->cfg, "testbed",
1067 "OVERLAY_TOPOLOGY_FILE",
1070 GNUNET_log_config_missing (GNUNET_ERROR_TYPE_ERROR, "testbed",
1071 "OVERLAY_TOPOLOGY_FILE");
1075 /* Warn if OVERLAY_RANDOM_LINKS is present that it will be ignored */
1077 GNUNET_CONFIGURATION_have_value (rc->cfg, "testbed",
1078 "OVERLAY_RANDOM_LINKS"))
1079 LOG (GNUNET_ERROR_TYPE_WARNING,
1080 "Ignoring value of `OVERLAY_RANDOM_LINKS' in given configuration\n");
1083 if (0 != rc->num_hosts)
1086 GNUNET_malloc (sizeof (struct GNUNET_TESTBED_HostHabitableCheckHandle *)
1088 for (nhost = 0; nhost < rc->num_hosts; nhost++)
1091 (rc->hc_handles[nhost] =
1092 GNUNET_TESTBED_is_host_habitable (rc->hosts[nhost], rc->cfg,
1093 &host_habitable_cb, rc)))
1096 for (nhost = 0; nhost < rc->num_hosts; nhost++)
1097 if (NULL != rc->hc_handles[nhost])
1098 GNUNET_TESTBED_is_host_habitable_cancel (rc->hc_handles[nhost]);
1099 GNUNET_free (rc->hc_handles);
1100 rc->hc_handles = NULL;
1107 GNUNET_TESTBED_controller_start ("127.0.0.1", rc->h, rc->cfg,
1108 &controller_status_cb, rc);
1109 rc->shutdown_run_task =
1110 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_FOREVER_REL, &shutdown_run,
1116 GNUNET_TESTBED_host_destroy (rc->h);
1117 if (NULL != rc->hosts)
1119 for (hid = 0; hid < rc->num_hosts; hid++)
1120 if (NULL != rc->hosts[hid])
1121 GNUNET_TESTBED_host_destroy (rc->hosts[hid]);
1122 GNUNET_free (rc->hosts);
1124 if (NULL != rc->cfg)
1125 GNUNET_CONFIGURATION_destroy (rc->cfg);
1130 /* end of testbed_api_testbed.c */