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;
378 struct DLLOperation *dll_op;
381 GNUNET_assert (GNUNET_SCHEDULER_NO_TASK == rc->register_hosts_task);
382 GNUNET_assert (NULL == rc->reg_handle);
383 GNUNET_assert (NULL == rc->peers);
384 GNUNET_assert (NULL == rc->hc_handles);
385 GNUNET_assert (RC_PEERS_SHUTDOWN == rc->state);
386 if (NULL != rc->dll_op_head)
387 { /* cancel our pending operations */
388 while (NULL != (dll_op = rc->dll_op_head))
390 GNUNET_TESTBED_operation_done (dll_op->op);
391 GNUNET_CONTAINER_DLL_remove (rc->dll_op_head, rc->dll_op_tail, dll_op);
392 GNUNET_free (dll_op);
396 GNUNET_TESTBED_controller_disconnect (rc->c);
397 if (NULL != rc->cproc)
398 GNUNET_TESTBED_controller_stop (rc->cproc);
400 GNUNET_TESTBED_host_destroy (rc->h);
401 for (hid = 0; hid < rc->num_hosts; hid++)
402 GNUNET_TESTBED_host_destroy (rc->hosts[hid]);
403 GNUNET_free_non_null (rc->hosts);
405 GNUNET_CONFIGURATION_destroy (rc->cfg);
406 GNUNET_free_non_null (rc->topo_file);
407 GNUNET_free_non_null (rc->trusted_ip);
413 * Stops the testbed run and releases any used resources
415 * @param cls the tesbed run handle
416 * @param tc the task context from scheduler
419 shutdown_run (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc);
423 * Function to shutdown now
425 * @param rc the RunContext
428 shutdown_now (struct RunContext *rc)
430 if (GNUNET_YES == rc->shutdown)
432 if (GNUNET_SCHEDULER_NO_TASK != rc->shutdown_run_task)
433 GNUNET_SCHEDULER_cancel (rc->shutdown_run_task);
434 rc->shutdown_run_task = GNUNET_SCHEDULER_add_now (&shutdown_run, rc);
439 * Stops the testbed run and releases any used resources
441 * @param cls the tesbed run handle
442 * @param tc the task context from scheduler
445 shutdown_run (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
447 struct RunContext *rc = cls;
448 struct DLLOperation *dll_op;
451 GNUNET_assert (GNUNET_SCHEDULER_NO_TASK != rc->shutdown_run_task);
452 rc->shutdown_run_task = GNUNET_SCHEDULER_NO_TASK;
453 GNUNET_assert (GNUNET_NO == rc->shutdown);
454 rc->shutdown = GNUNET_YES;
455 if (NULL != rc->hc_handles)
457 for (nhost = 0; nhost < rc->num_hosts; nhost++)
458 if (NULL != rc->hc_handles[nhost])
459 GNUNET_TESTBED_is_host_habitable_cancel (rc->hc_handles[nhost]);
460 GNUNET_free (rc->hc_handles);
461 rc->hc_handles = NULL;
463 /* Stop register hosts task if it is running */
464 if (GNUNET_SCHEDULER_NO_TASK != rc->register_hosts_task)
466 GNUNET_SCHEDULER_cancel (rc->register_hosts_task);
467 rc->register_hosts_task = GNUNET_SCHEDULER_NO_TASK;
469 if (NULL != rc->reg_handle)
471 GNUNET_TESTBED_cancel_registration (rc->reg_handle);
472 rc->reg_handle = NULL;
476 if (NULL != rc->peers)
478 if (NULL != rc->topology_operation)
480 GNUNET_TESTBED_operation_done (rc->topology_operation);
481 rc->topology_operation = NULL;
483 if (RC_INIT == rc->state)
484 rc->state = RC_READY; /* Even though we haven't called the master callback */
485 dll_op = GNUNET_malloc (sizeof (struct DLLOperation));
486 dll_op->op = GNUNET_TESTBED_shutdown_peers (rc->c, dll_op, NULL, NULL);
487 DEBUG ("Shutting down peers\n");
488 rc->pstart_time = GNUNET_TIME_absolute_get ();
489 GNUNET_CONTAINER_DLL_insert_tail (rc->dll_op_head, rc->dll_op_tail,
494 rc->state = RC_PEERS_SHUTDOWN; /* No peers are present so we consider the
495 * state where all peers are SHUTDOWN */
496 GNUNET_SCHEDULER_add_now (&cleanup_task, rc);
501 * Task to call master task
503 * @param cls the run context
504 * @param tc the task context
507 call_master (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
509 struct RunContext *rc = cls;
511 if (NULL != rc->topology_operation)
513 DEBUG ("Overlay topology generated in %s\n", prof_time (rc));
514 GNUNET_TESTBED_operation_done (rc->topology_operation);
515 rc->topology_operation = NULL;
517 if (NULL != rc->test_master)
518 rc->test_master (rc->test_master_cls, rc->num_peers, rc->peers);
523 * Callbacks of this type are called when topology configuration is completed
525 * @param cls the operation closure given to
526 * GNUNET_TESTBED_overlay_configure_topology_va() and
527 * GNUNET_TESTBED_overlay_configure() calls
528 * @param nsuccess the number of successful overlay connects
529 * @param nfailures the number of overlay connects which failed
532 topology_completion_callback (void *cls, unsigned int nsuccess,
533 unsigned int nfailures)
535 struct RunContext *rc = cls;
537 rc->state = RC_READY;
538 GNUNET_SCHEDULER_add_continuation (&call_master, rc,
539 GNUNET_SCHEDULER_REASON_PREREQ_DONE);
544 * Function to create peers
546 * @param rc the RunContext
549 create_peers (struct RunContext *rc)
551 struct DLLOperation *dll_op;
554 DEBUG ("Creating peers\n");
555 rc->pstart_time = GNUNET_TIME_absolute_get ();
557 GNUNET_malloc (sizeof (struct GNUNET_TESTBED_Peer *) * rc->num_peers);
558 GNUNET_assert (NULL != rc->c);
560 for (peer = 0; peer < rc->num_peers; peer++)
562 dll_op = GNUNET_malloc (sizeof (struct DLLOperation));
565 GNUNET_TESTBED_peer_create (rc->c,
567 rc->num_hosts) ? rc->h : rc->hosts[peer %
569 rc->cfg, peer_create_cb, dll_op);
570 GNUNET_CONTAINER_DLL_insert_tail (rc->dll_op_head, rc->dll_op_tail, dll_op);
576 * Signature of the event handler function called by the
577 * respective event controller.
580 * @param event information about the event
583 event_cb (void *cls, const struct GNUNET_TESTBED_EventInformation *event)
585 struct RunContext *rc = cls;
586 struct DLLOperation *dll_op;
588 if (RC_INIT == rc->state)
592 case GNUNET_TESTBED_ET_OPERATION_FINISHED:
593 dll_op = event->details.operation_finished.op_cls;
594 if (NULL != event->details.operation_finished.emsg)
596 LOG (GNUNET_ERROR_TYPE_ERROR, _("Linking controllers failed. Exiting"));
601 GNUNET_assert (event->details.operation_finished.operation == dll_op->op);
602 GNUNET_CONTAINER_DLL_remove (rc->dll_op_head, rc->dll_op_tail, dll_op);
603 GNUNET_TESTBED_operation_done (dll_op->op);
604 GNUNET_free (dll_op);
605 if (rc->reg_hosts == rc->num_hosts)
607 rc->state = RC_LINKED;
617 for (dll_op = rc->dll_op_head; NULL != dll_op; dll_op = dll_op->next)
619 if ((GNUNET_TESTBED_ET_OPERATION_FINISHED == event->type) &&
620 (event->details.operation_finished.operation == dll_op->op))
625 GNUNET_CONTAINER_DLL_remove (rc->dll_op_head, rc->dll_op_tail, dll_op);
626 GNUNET_TESTBED_operation_done (dll_op->op);
627 GNUNET_free (dll_op);
630 case RC_PEERS_CREATED:
632 rc->state = RC_PEERS_SHUTDOWN;
633 GNUNET_free (rc->peers);
635 DEBUG ("Peers shut down in %s\n", prof_time (rc));
636 GNUNET_SCHEDULER_add_now (&cleanup_task, rc);
644 if ((0 != (rc->event_mask & (1LL << event->type))) && (NULL != rc->cc))
645 rc->cc (rc->cc_cls, event);
646 if (GNUNET_TESTBED_ET_PEER_START != event->type)
648 for (dll_op = rc->dll_op_head; NULL != dll_op; dll_op = dll_op->next)
649 if ((NULL != dll_op->cls) &&
650 (event->details.peer_start.peer == dll_op->cls))
652 if (NULL == dll_op) /* Not our operation */
654 GNUNET_CONTAINER_DLL_remove (rc->dll_op_head, rc->dll_op_tail, dll_op);
655 GNUNET_TESTBED_operation_done (dll_op->op);
656 GNUNET_free (dll_op);
658 if (rc->peer_count < rc->num_peers)
660 DEBUG ("%u peers started in %s\n", rc->num_peers, prof_time (rc));
661 if (GNUNET_TESTBED_TOPOLOGY_NONE != rc->topology)
663 if ((GNUNET_TESTBED_TOPOLOGY_ERDOS_RENYI == rc->topology) ||
664 (GNUNET_TESTBED_TOPOLOGY_SMALL_WORLD_RING == rc->topology) ||
665 (GNUNET_TESTBED_TOPOLOGY_SMALL_WORLD == rc->topology))
667 rc->topology_operation =
668 GNUNET_TESTBED_overlay_configure_topology (NULL, rc->num_peers,
669 rc->peers, &rc->num_oc,
670 &topology_completion_callback,
674 GNUNET_TESTBED_TOPOLOGY_OPTION_END);
676 else if (GNUNET_TESTBED_TOPOLOGY_FROM_FILE == rc->topology)
678 GNUNET_assert (NULL != rc->topo_file);
679 rc->topology_operation =
680 GNUNET_TESTBED_overlay_configure_topology (NULL, rc->num_peers,
681 rc->peers, &rc->num_oc,
682 &topology_completion_callback,
686 GNUNET_TESTBED_TOPOLOGY_OPTION_END);
689 rc->topology_operation =
690 GNUNET_TESTBED_overlay_configure_topology (NULL, rc->num_peers,
691 rc->peers, &rc->num_oc,
692 &topology_completion_callback,
695 GNUNET_TESTBED_TOPOLOGY_OPTION_END);
696 if (NULL == rc->topology_operation)
697 LOG (GNUNET_ERROR_TYPE_WARNING,
698 "Not generating topology. Check number of peers\n");
701 DEBUG ("Creating overlay topology\n");
702 rc->pstart_time = GNUNET_TIME_absolute_get ();
706 rc->state = RC_READY;
707 GNUNET_SCHEDULER_add_continuation (&call_master, rc,
708 GNUNET_SCHEDULER_REASON_PREREQ_DONE);
713 * Task to register all hosts available in the global host list
715 * @param cls the RunContext
716 * @param tc the scheduler task context
719 register_hosts (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc);
723 * Callback which will be called to after a host registration succeeded or failed
725 * @param cls the closure
726 * @param emsg the error message; NULL if host registration is successful
729 host_registration_completion (void *cls, const char *emsg)
731 struct RunContext *rc = cls;
733 rc->reg_handle = NULL;
736 LOG (GNUNET_ERROR_TYPE_WARNING,
737 _("Host registration failed for a host. Error: %s\n"), emsg);
741 rc->register_hosts_task = GNUNET_SCHEDULER_add_now (®ister_hosts, rc);
746 * Task to register all hosts available in the global host list
748 * @param cls RunContext
749 * @param tc the scheduler task context
752 register_hosts (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
754 struct RunContext *rc = cls;
755 struct DLLOperation *dll_op;
758 rc->register_hosts_task = GNUNET_SCHEDULER_NO_TASK;
759 if (rc->reg_hosts == rc->num_hosts)
761 DEBUG ("All hosts successfully registered\n");
763 for (slave = 0; slave < rc->num_hosts; slave++)
765 dll_op = GNUNET_malloc (sizeof (struct DLLOperation));
768 GNUNET_TESTBED_controller_link (dll_op, rc->c, rc->hosts[slave],
769 rc->h, rc->cfg, GNUNET_YES);
770 GNUNET_CONTAINER_DLL_insert_tail (rc->dll_op_head, rc->dll_op_tail,
777 GNUNET_TESTBED_register_host (rc->c, rc->hosts[rc->reg_hosts],
778 host_registration_completion, rc);
784 * Callback to signal successfull startup of the controller process
786 * @param cls the closure from GNUNET_TESTBED_controller_start()
787 * @param cfg the configuration with which the controller has been started;
788 * NULL if status is not GNUNET_OK
789 * @param status GNUNET_OK if the startup is successfull; GNUNET_SYSERR if not,
790 * GNUNET_TESTBED_controller_stop() shouldn't be called in this case
793 controller_status_cb (void *cls, const struct GNUNET_CONFIGURATION_Handle *cfg,
796 struct RunContext *rc = cls;
799 if (status != GNUNET_OK)
804 GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Testbed startup failed\n");
807 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
808 "Controller crash detected. Shutting down.\n");
814 GNUNET_CONFIGURATION_destroy (rc->cfg);
815 rc->cfg = GNUNET_CONFIGURATION_dup (cfg);
816 event_mask = rc->event_mask;
817 event_mask |= (1LL << GNUNET_TESTBED_ET_OPERATION_FINISHED);
818 event_mask |= (1LL << GNUNET_TESTBED_ET_PEER_START);
819 if (rc->topology < GNUNET_TESTBED_TOPOLOGY_NONE)
820 event_mask |= GNUNET_TESTBED_ET_CONNECT;
822 GNUNET_TESTBED_controller_connect (rc->cfg, rc->h, event_mask, &event_cb,
824 if (0 < rc->num_hosts)
827 rc->register_hosts_task = GNUNET_SCHEDULER_add_now (®ister_hosts, rc);
830 rc->state = RC_LINKED;
836 * Callback function invoked for each interface found.
839 * @param name name of the interface (can be NULL for unknown)
840 * @param isDefault is this presumably the default interface
841 * @param addr address of this interface (can be NULL for unknown or unassigned)
842 * @param broadcast_addr the broadcast address (can be NULL for unknown or unassigned)
843 * @param netmask the network mask (can be NULL for unknown or unassigned))
844 * @param addrlen length of the address
845 * @return GNUNET_OK to continue iteration, GNUNET_SYSERR to abort
848 netint_proc (void *cls, const char *name, int isDefault,
849 const struct sockaddr *addr, const struct sockaddr *broadcast_addr,
850 const struct sockaddr *netmask, socklen_t addrlen)
852 struct RunContext *rc = cls;
853 char hostip[NI_MAXHOST];
856 if (sizeof (struct sockaddr_in) != addrlen)
857 return GNUNET_OK; /* Only consider IPv4 for now */
859 getnameinfo (addr, addrlen, hostip, NI_MAXHOST, NULL, 0, NI_NUMERICHOST))
860 GNUNET_log_strerror (GNUNET_ERROR_TYPE_WARNING, "getnameinfo");
861 if (NULL == rc->trusted_ip)
863 rc->trusted_ip = GNUNET_strdup (hostip);
866 (void) GNUNET_asprintf (&buf, "%s; %s", rc->trusted_ip, hostip);
867 GNUNET_free (rc->trusted_ip);
868 rc->trusted_ip = buf;
874 * Callbacks of this type are called by GNUNET_TESTBED_is_host_habitable to
875 * inform whether the given host is habitable or not. The Handle returned by
876 * GNUNET_TESTBED_is_host_habitable() is invalid after this callback is called
879 * @param host the host whose status is being reported; will be NULL if the host
880 * given to GNUNET_TESTBED_is_host_habitable() is NULL
881 * @param status GNUNET_YES if it is habitable; GNUNET_NO if not
884 host_habitable_cb (void *cls, const struct GNUNET_TESTBED_Host *host,
887 struct RunContext *rc = cls;
888 struct GNUNET_TESTBED_Host **old_hosts;
891 for (nhost = 0; nhost < rc->num_hosts; nhost++)
893 if (host == rc->hosts[nhost])
896 GNUNET_assert (nhost != rc->num_hosts);
897 rc->hc_handles[nhost] = NULL;
898 if (GNUNET_NO == status)
900 if ((NULL != host) && (NULL != GNUNET_TESTBED_host_get_hostname (host)))
901 LOG (GNUNET_ERROR_TYPE_ERROR, _("Host %s cannot start testbed\n"),
902 GNUNET_TESTBED_host_get_hostname (host));
904 LOG (GNUNET_ERROR_TYPE_ERROR,
905 _("Testbed cannot be started on localhost\n"));
910 if (rc->reg_hosts < rc->num_hosts)
912 GNUNET_free (rc->hc_handles);
913 rc->hc_handles = NULL;
914 rc->h = rc->hosts[0];
916 if (0 < rc->num_hosts)
918 old_hosts = rc->hosts;
920 GNUNET_malloc (sizeof (struct GNUNET_TESTBED_Host *) * rc->num_hosts);
921 memcpy (rc->hosts, &old_hosts[1],
922 (sizeof (struct GNUNET_TESTBED_Host *) * rc->num_hosts));
923 GNUNET_free (old_hosts);
927 GNUNET_free (rc->hosts);
930 GNUNET_OS_network_interfaces_list (netint_proc, rc);
931 if (NULL == rc->trusted_ip)
932 rc->trusted_ip = GNUNET_strdup ("127.0.0.1");
934 GNUNET_TESTBED_controller_start (rc->trusted_ip, rc->h, rc->cfg,
935 &controller_status_cb, rc);
936 GNUNET_free (rc->trusted_ip);
937 rc->trusted_ip = NULL;
938 if (NULL == rc->cproc)
940 LOG (GNUNET_ERROR_TYPE_ERROR, _("Cannot start the master controller"));
947 * Convenience method for running a testbed with
948 * a single call. Underlay and overlay topology
949 * are configured using the "UNDERLAY" and "OVERLAY"
950 * options in the "[testbed]" section of the configuration\
951 * (with possible options given in "UNDERLAY_XXX" and/or
954 * The testbed is to be terminated using a call to
955 * "GNUNET_SCHEDULER_shutdown".
957 * @param host_filename name of the file with the 'hosts', NULL
958 * to run everything on 'localhost'
959 * @param cfg configuration to use (for testbed, controller and peers)
960 * @param num_peers number of peers to start; FIXME: maybe put that ALSO into cfg?
961 * @param event_mask bit mask with set of events to call 'cc' for;
962 * or-ed values of "1LL" shifted by the
963 * respective 'enum GNUNET_TESTBED_EventType'
964 * (i.e. "(1LL << GNUNET_TESTBED_ET_CONNECT) || ...")
965 * @param cc controller callback to invoke on events; This callback is called
966 * for all peer start events even if GNUNET_TESTBED_ET_PEER_START isn't
967 * set in the event_mask as this is the only way get access to the
968 * handle of each peer
969 * @param cc_cls closure for cc
970 * @param test_master this callback will be called once the test is ready
971 * @param test_master_cls closure for 'test_master'.
974 GNUNET_TESTBED_run (const char *host_filename,
975 const struct GNUNET_CONFIGURATION_Handle *cfg,
976 unsigned int num_peers, uint64_t event_mask,
977 GNUNET_TESTBED_ControllerCallback cc, void *cc_cls,
978 GNUNET_TESTBED_TestMaster test_master,
979 void *test_master_cls)
981 struct RunContext *rc;
983 unsigned long long random_links;
987 GNUNET_assert (num_peers > 0);
988 rc = GNUNET_malloc (sizeof (struct RunContext));
989 rc->cfg = GNUNET_CONFIGURATION_dup (cfg);
991 rc->num_hosts = GNUNET_TESTBED_hosts_load_from_loadleveler (rc->cfg,
993 if (0 == rc->num_hosts)
995 LOG (GNUNET_ERROR_TYPE_WARNING,
996 _("No hosts loaded from LoadLeveler. Need at least one host\n"));
1000 if (NULL != host_filename)
1003 GNUNET_TESTBED_hosts_load_from_file (host_filename, rc->cfg,
1005 if (0 == rc->num_hosts)
1007 LOG (GNUNET_ERROR_TYPE_WARNING,
1008 _("No hosts loaded. Need at least one host\n"));
1013 rc->h = GNUNET_TESTBED_host_create (NULL, NULL, rc->cfg, 0);
1015 rc->num_peers = num_peers;
1016 rc->event_mask = event_mask;
1018 rc->cc_cls = cc_cls;
1019 rc->test_master = test_master;
1020 rc->test_master_cls = test_master_cls;
1021 rc->state = RC_INIT;
1022 rc->topology = GNUNET_TESTBED_TOPOLOGY_NONE;
1024 GNUNET_CONFIGURATION_get_value_string (rc->cfg, "testbed",
1025 "OVERLAY_TOPOLOGY", &topology))
1027 if (GNUNET_NO == GNUNET_TESTBED_topology_get_ (&rc->topology, topology))
1029 GNUNET_log_config_invalid (GNUNET_ERROR_TYPE_ERROR, "testbed",
1032 ("Specified topology must be supported by testbed"));
1034 GNUNET_free (topology);
1036 switch (rc->topology)
1038 case GNUNET_TESTBED_TOPOLOGY_ERDOS_RENYI:
1039 case GNUNET_TESTBED_TOPOLOGY_SMALL_WORLD_RING:
1040 case GNUNET_TESTBED_TOPOLOGY_SMALL_WORLD:
1042 GNUNET_CONFIGURATION_get_value_number (rc->cfg, "testbed",
1043 "OVERLAY_RANDOM_LINKS",
1046 /* OVERLAY option RANDOM & SMALL_WORLD_RING requires OVERLAY_RANDOM_LINKS
1047 * option to be set to the number of random links to be established */
1048 GNUNET_log_config_missing (GNUNET_ERROR_TYPE_ERROR, "testbed",
1049 "OVERLAY_RANDOM_LINKS");
1052 if (random_links > UINT32_MAX)
1054 GNUNET_break (0); /* Too big number */
1057 rc->random_links = (unsigned int) random_links;
1059 case GNUNET_TESTBED_TOPOLOGY_FROM_FILE:
1061 GNUNET_CONFIGURATION_get_value_string (rc->cfg, "testbed",
1062 "OVERLAY_TOPOLOGY_FILE",
1065 GNUNET_log_config_missing (GNUNET_ERROR_TYPE_ERROR, "testbed",
1066 "OVERLAY_TOPOLOGY_FILE");
1070 /* Warn if OVERLAY_RANDOM_LINKS is present that it will be ignored */
1072 GNUNET_CONFIGURATION_have_value (rc->cfg, "testbed",
1073 "OVERLAY_RANDOM_LINKS"))
1074 LOG (GNUNET_ERROR_TYPE_WARNING,
1075 "Ignoring value of `OVERLAY_RANDOM_LINKS' in given configuration\n");
1078 if (0 != rc->num_hosts)
1081 GNUNET_malloc (sizeof (struct GNUNET_TESTBED_HostHabitableCheckHandle *)
1083 for (nhost = 0; nhost < rc->num_hosts; nhost++)
1086 (rc->hc_handles[nhost] =
1087 GNUNET_TESTBED_is_host_habitable (rc->hosts[nhost], rc->cfg,
1088 &host_habitable_cb, rc)))
1091 for (nhost = 0; nhost < rc->num_hosts; nhost++)
1092 if (NULL != rc->hc_handles[nhost])
1093 GNUNET_TESTBED_is_host_habitable_cancel (rc->hc_handles[nhost]);
1094 GNUNET_free (rc->hc_handles);
1095 rc->hc_handles = NULL;
1102 GNUNET_TESTBED_controller_start ("127.0.0.1", rc->h, rc->cfg,
1103 &controller_status_cb, rc);
1104 rc->shutdown_run_task =
1105 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_FOREVER_REL, &shutdown_run,
1111 GNUNET_TESTBED_host_destroy (rc->h);
1112 if (NULL != rc->hosts)
1114 for (hid = 0; hid < rc->num_hosts; hid++)
1115 if (NULL != rc->hosts[hid])
1116 GNUNET_TESTBED_host_destroy (rc->hosts[hid]);
1117 GNUNET_free (rc->hosts);
1119 if (NULL != rc->cfg)
1120 GNUNET_CONFIGURATION_destroy (rc->cfg);
1125 /* end of testbed_api_testbed.c */