2 This file is part of GNUnet
3 (C) 2008, 2009, 2012 Christian Grothoff (and other contributing authors)
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13 General Public License for more details.
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22 * @file include/gnunet_testbed_service.h
23 * @brief API for writing tests and creating large-scale
24 * emulation testbeds for GNUnet.
25 * @author Christian Grothoff
28 #ifndef GNUNET_TESTBED_SERVICE_H
29 #define GNUNET_TESTBED_SERVICE_H
31 #include "gnunet_util_lib.h"
32 #include "gnunet_testing_lib-new.h"
37 #if 0 /* keep Emacsens' auto-indent happy */
44 * Opaque handle to a host running experiments managed by the testbed framework.
45 * The master process must be able to SSH to this host without password (via
48 struct GNUNET_TESTBED_Host;
51 * Opaque handle to a peer controlled by the testbed framework. A peer runs
52 * at a particular host.
54 struct GNUNET_TESTBED_Peer;
57 * Opaque handle to an abstract operation to be executed by the testbed framework.
59 struct GNUNET_TESTBED_Operation;
62 * Handle to interact with a GNUnet testbed controller. Each
63 * controller has at least one master handle which is created when the
64 * controller is created; this master handle interacts with the
65 * controller process, destroying it destroys the controller (by
66 * closing stdin of the controller process). Additionally,
67 * controllers can interact with each other (in a P2P fashion); those
68 * links are established via TCP/IP on the controller's service port.
70 struct GNUNET_TESTBED_Controller;
73 * Handle to a large-scale testbed that is managed at a high level.
75 struct GNUNET_TESTBED_Testbed;
79 * Create a host to run peers and controllers on.
81 * @param hostname name of the host, use "NULL" for localhost
82 * @param username username to use for the login; may be NULL
83 * @param port port number to use for ssh; use 0 to let ssh decide
84 * @return handle to the host, NULL on error
86 struct GNUNET_TESTBED_Host *
87 GNUNET_TESTBED_host_create (const char *hostname,
94 * Create a host to run peers and controllers on. This function is used
95 * if a peer learns about a host via IPC between controllers (and thus
96 * some higher-level controller has already determined the unique IDs).
98 * @param id global host ID assigned to the host; 0 is
99 * reserved to always mean 'localhost'
100 * @param hostname name of the host, use "NULL" for localhost
101 * @param username username to use for the login; may be NULL
102 * @param port port number to use for ssh; use 0 to let ssh decide
103 * @return handle to the host, NULL on error
105 struct GNUNET_TESTBED_Host *
106 GNUNET_TESTBED_host_create_with_id (uint32_t id,
107 const char *hostname,
108 const char *username,
113 * Load a set of hosts from a configuration file.
115 * @param filename file with the host specification
116 * @param hosts set to the hosts found in the file
117 * @return number of hosts returned in 'hosts', 0 on error
120 GNUNET_TESTBED_hosts_load_from_file (const char *filename,
121 struct GNUNET_TESTBED_Host **hosts);
125 * Destroy a host handle. Must only be called once everything
126 * running on that host has been stopped.
128 * @param host handle to destroy
131 GNUNET_TESTBED_host_destroy (struct GNUNET_TESTBED_Host *host);
135 * Enumeration with (at most 64) possible event types that
136 * can be monitored using the testbed framework.
138 enum GNUNET_TESTBED_EventType
141 * A peer has been started.
143 GNUNET_TESTBED_ET_PEER_START = 0,
146 * A peer has been stopped.
148 GNUNET_TESTBED_ET_PEER_STOP = 1,
151 * A connection between two peers was established.
153 GNUNET_TESTBED_ET_CONNECT = 2,
156 * A connection between two peers was torn down.
158 GNUNET_TESTBED_ET_DISCONNECT = 3,
161 * A requested testbed operation has been completed.
163 GNUNET_TESTBED_ET_OPERATION_FINISHED = 4,
166 * The 'GNUNET_TESTBED_run' operation has been completed
168 GNUNET_TESTBED_ET_TESTBED_ONLINE = 5
174 * Types of information that can be requested about a peer.
176 enum GNUNET_TESTBED_PeerInformationType
180 * Special value (not valid for requesting information)
181 * that is used in the event struct if a 'generic' pointer
182 * is returned (for other operations not related to this
185 GNUNET_TESTBED_PIT_GENERIC = 0,
188 * What configuration is the peer using? Returns a 'const struct
189 * GNUNET_CONFIGURATION_Handle *'. Valid until
190 * 'GNUNET_TESTNIG_operation_done' is called. However, the
191 * values may be inaccurate if the peer is reconfigured in
194 GNUNET_TESTBED_PIT_CONFIGURATION,
197 * What is the identity of the peer? Returns a
198 * 'const struct GNUNET_PeerIdentity *'. Valid until
199 * 'GNUNET_TESTNIG_operation_done' is called.
201 GNUNET_TESTBED_PIT_IDENTITY
207 * Argument to GNUNET_TESTBED_ControllerCallback with details about
210 struct GNUNET_TESTBED_EventInformation
216 enum GNUNET_TESTBED_EventType type;
219 * Details about the event.
225 * Details about peer start event.
230 * Handle for the host where the peer
233 struct GNUNET_TESTBED_Host *host;
236 * Handle for the peer that was started.
238 struct GNUNET_TESTBED_Peer *peer;
243 * Details about peer stop event.
249 * Handle for the peer that was started.
251 struct GNUNET_TESTBED_Peer *peer;
256 * Details about connect event.
261 * Handle for one of the connected peers.
263 struct GNUNET_TESTBED_Peer *peer1;
266 * Handle for one of the connected peers.
268 struct GNUNET_TESTBED_Peer *peer2;
273 * Details about disconnect event.
278 * Handle for one of the disconnected peers.
280 struct GNUNET_TESTBED_Peer *peer1;
283 * Handle for one of the disconnected peers.
285 struct GNUNET_TESTBED_Peer *peer2;
290 * Details about an operation finished event.
296 * Handle for the operation that was finished.
298 struct GNUNET_TESTBED_Operation *operation;
301 * Closure that was passed in when the event was
307 * Error message for the operation, NULL on success.
312 * Peer information type; captures which of the types
313 * in the 'op_result' is actually in use.
315 enum GNUNET_TESTBED_PeerInformationType pit;
318 * Pointer to an operation-specific return value; NULL on error;
319 * can be NULL for certain operations. Valid until
320 * 'GNUNET_TESTBED_operation_done' is called.
325 * No result (NULL pointer) or generic result
326 * (whatever the GNUNET_TESTBED_ConnectAdapter returned).
331 * Identity of host running the peer.
333 struct GNUNET_TESTBED_Host *host;
336 * Identity of the peer.
338 const struct GNUNET_PeerIdentity *pid;
341 * Configuration of the peer.
343 const struct GNUNET_CONFIGURATION_Handle *cfg;
347 } operation_finished;
351 * Details about an testbed run completed event.
357 * Error message for the operation, NULL on success.
362 * Array of peers now running (valid until
363 * 'GNUNET_TESTBED_testbed_stop' is called). Note that it is
364 * not allowed to call 'GNUNET_TESTBED_peer_destroy' on peers
367 struct GNUNET_TESTBED_Peer **peers;
370 * Size of the 'peers' array.
372 unsigned int num_peers;
374 } testbed_run_finished;
382 * Signature of the event handler function called by the
383 * respective event controller.
386 * @param event information about the event
388 typedef void (*GNUNET_TESTBED_ControllerCallback)(void *cls,
389 const struct GNUNET_TESTBED_EventInformation *event);
393 * Opaque Handle for Controller process
395 struct GNUNET_TESTBED_ControllerProc;
399 * Callback to signal successfull startup of the controller process
401 * @param cls the closure from GNUNET_TESTBED_controller_start()
402 * @param cfg the configuration with which the controller has been started;
403 * NULL if status is not GNUNET_OK
404 * @param status GNUNET_OK if the startup is successfull; GNUNET_SYSERR if not,
405 * GNUNET_TESTBED_controller_stop() shouldn't be called in this case
407 typedef void (*GNUNET_TESTBED_ControllerStatusCallback) (void *cls,
408 const struct GNUNET_CONFIGURATION_Handle *cfg,
413 * Starts a controller process at the host. FIXME: add controller start callback
414 * with the configuration with which the controller is started
416 * @param controller_ip the ip address of the controller. Will be set as TRUSTED
417 * host when starting testbed controller at host
418 * @param host the host where the controller has to be started; NULL for
420 * @param cfg template configuration to use for the remote controller; the
421 * remote controller will be started with a slightly modified
422 * configuration (port numbers, unix domain sockets and service home
423 * values are changed as per TESTING library on the remote host)
424 * @param cb function called when the controller is successfully started or
425 * dies unexpectedly; GNUNET_TESTBED_controller_stop shouldn't be
426 * called if cb is called with GNUNET_SYSERR as status. Will never be
427 * called in the same task as 'GNUNET_TESTBED_controller_start'
428 * (synchronous errors will be signalled by returning NULL). This
429 * parameter cannot be NULL.
430 * @param cls closure for above callbacks
431 * @return the controller process handle, NULL on errors
433 struct GNUNET_TESTBED_ControllerProc *
434 GNUNET_TESTBED_controller_start (const char *controller_ip,
435 struct GNUNET_TESTBED_Host *host,
436 const struct GNUNET_CONFIGURATION_Handle *cfg,
437 GNUNET_TESTBED_ControllerStatusCallback cb,
442 * Stop the controller process (also will terminate all peers and controllers
443 * dependent on this controller). This function blocks until the testbed has
444 * been fully terminated (!).
446 * @param cproc the controller process handle
449 GNUNET_TESTBED_controller_stop (struct GNUNET_TESTBED_ControllerProc *cproc);
453 * Connect to a controller process using the given configuration at the
456 * @param cfg configuration to use
457 * @param host host to run the controller on; This should be the same host if
458 * the controller was previously started with
459 * GNUNET_TESTBED_controller_start; NULL for localhost
460 * @param host host where this controller is being run;
461 * @param event_mask bit mask with set of events to call 'cc' for;
462 * or-ed values of "1LL" shifted by the
463 * respective 'enum GNUNET_TESTBED_EventType'
464 * (i.e. "(1LL << GNUNET_TESTBED_ET_CONNECT) | ...")
465 * @param cc controller callback to invoke on events
466 * @param cc_cls closure for cc
467 * @return handle to the controller
469 struct GNUNET_TESTBED_Controller *
470 GNUNET_TESTBED_controller_connect (const struct GNUNET_CONFIGURATION_Handle *cfg,
471 struct GNUNET_TESTBED_Host *host,
473 GNUNET_TESTBED_ControllerCallback cc,
478 * Configure shared services at a controller. Using this function,
479 * you can specify that certain services (such as "resolver")
480 * should not be run for each peer but instead be shared
481 * across N peers on the specified host. This function
482 * must be called before any peers are created at the host.
484 * @param controller controller to configure
485 * @param service_name name of the service to share
486 * @param num_peers number of peers that should share one instance
487 * of the specified service (1 for no sharing is the default),
488 * use 0 to disable the service
491 GNUNET_TESTBED_controller_configure_sharing (struct GNUNET_TESTBED_Controller *controller,
492 const char *service_name,
497 * Stop the given controller (also will terminate all peers and
498 * controllers dependent on this controller). This function
499 * blocks until the testbed has been fully terminated (!).
501 * @param controller handle to controller to stop
504 GNUNET_TESTBED_controller_disconnect (struct GNUNET_TESTBED_Controller *controller);
508 * Opaque handle for host registration
510 struct GNUNET_TESTBED_HostRegistrationHandle;
514 * Callback which will be called to after a host registration succeeded or failed
516 * @param cls the closure
517 * @param emsg the error message; NULL if host registration is successful
519 typedef void (* GNUNET_TESTBED_HostRegistrationCompletion) (void *cls,
524 * Register a host with the controller
526 * @param controller the controller handle
527 * @param host the host to register
528 * @param cc the completion callback to call to inform the status of
529 * registration. After calling this callback the registration handle
530 * will be invalid. Cannot be NULL
531 * @param cc_cls the closure for the cc
532 * @return handle to the host registration which can be used to cancel the
533 * registration; NULL if another registration handle is present and
536 struct GNUNET_TESTBED_HostRegistrationHandle *
537 GNUNET_TESTBED_register_host (struct GNUNET_TESTBED_Controller *controller,
538 struct GNUNET_TESTBED_Host *host,
539 GNUNET_TESTBED_HostRegistrationCompletion cc,
544 * Cancel the pending registration. Note that the registration message will
545 * already be queued to be sent to the service, cancellation has only the
546 * effect that the registration completion callback for the registration is
547 * never called and from our perspective the host is not registered until the
548 * completion callback is called.
550 * @param handle the registration handle to cancel
553 GNUNET_TESTBED_cancel_registration (struct GNUNET_TESTBED_HostRegistrationHandle
558 * Create a link from slave controller to delegated controller. Whenever the
559 * master controller is asked to start a peer at the delegated controller the
560 * request will be routed towards slave controller (if a route exists). The
561 * slave controller will then route it to the delegated controller. The
562 * configuration of the slave controller is given and to be used to either
563 * create the slave controller or to connect to an existing slave controller
564 * process. 'is_subordinate' specifies if the given slave controller should be
565 * started and managed by the master controller, or if the slave already has a
566 * master and this is just a secondary master that is also allowed to use the
569 * @param master handle to the master controller who creates the association
570 * @param delegated_host requests to which host should be delegated; cannot be NULL
571 * @param slave_host which host is used to run the slave controller; use NULL to
572 * make the master controller connect to the delegated host
573 * @param slave_cfg configuration to use for the slave controller
574 * @param is_subordinate GNUNET_YES if the controller at delegated_host should
575 * be started by the master controller; GNUNET_NO if we are just
576 * allowed to use the slave via TCP/IP
577 * @return the operation handle
579 struct GNUNET_TESTBED_Operation *
580 GNUNET_TESTBED_controller_link (struct GNUNET_TESTBED_Controller *master,
581 struct GNUNET_TESTBED_Host *delegated_host,
582 struct GNUNET_TESTBED_Host *slave_host,
583 const struct GNUNET_CONFIGURATION_Handle *slave_cfg,
588 * Same as the GNUNET_TESTBED_controller_link, however expects configuration in
589 * serialized and compressed
591 * @param master handle to the master controller who creates the association
592 * @param delegated_host requests to which host should be delegated; cannot be NULL
593 * @param slave_host which host is used to run the slave controller; use NULL to
594 * make the master controller connect to the delegated host
595 * @param sxcfg serialized and compressed configuration
596 * @param sxcfg_size the size scfg
597 * @param scfg_size the size of uncompressed serialized configuration
598 * @param is_subordinate GNUNET_YES if the controller at delegated_host should
599 * be started by the master controller; GNUNET_NO if we are just
600 * allowed to use the slave via TCP/IP
601 * @return the operation handle
603 struct GNUNET_TESTBED_Operation *
604 GNUNET_TESTBED_controller_link_2 (struct GNUNET_TESTBED_Controller *master,
605 struct GNUNET_TESTBED_Host *delegated_host,
606 struct GNUNET_TESTBED_Host *slave_host,
614 * Functions of this signature are called when a peer has been successfully
617 * @param cls the closure from GNUNET_TESTBED_peer_create()
618 * @param peer the handle for the created peer; NULL on any error during
620 * @param emsg NULL if peer is not NULL; else MAY contain the error description
622 typedef void (*GNUNET_TESTBED_PeerCreateCallback) (void *cls,
623 struct GNUNET_TESTBED_Peer *peer,
628 * Create the given peer at the specified host using the given
629 * controller. If the given controller is not running on the target
630 * host, it should find or create a controller at the target host and
631 * delegate creating the peer. Explicit delegation paths can be setup
632 * using 'GNUNET_TESTBED_controller_link'. If no explicit delegation
633 * path exists, a direct link with a subordinate controller is setup
634 * for the first delegated peer to a particular host; the subordinate
635 * controller is then destroyed once the last peer that was delegated
636 * to the remote host is stopped.
638 * Creating the peer only creates the handle to manipulate and further
639 * configure the peer; use "GNUNET_TESTBED_peer_start" and
640 * "GNUNET_TESTBED_peer_stop" to actually start/stop the peer's
643 * Note that the given configuration will be adjusted by the
644 * controller to avoid port/path conflicts with other peers.
645 * The "final" configuration can be obtained using
646 * 'GNUNET_TESTBED_peer_get_information'.
648 * @param controller controller process to use
649 * @param host host to run the peer on
650 * @param cfg Template configuration to use for the peer. Should exist until
651 * operation is cancelled or GNUNET_TESTBED_operation_done() is called
652 * @param cb the callback to call when the peer has been created
653 * @param cls the closure to the above callback
654 * @return the operation handle
656 struct GNUNET_TESTBED_Operation *
657 GNUNET_TESTBED_peer_create (struct GNUNET_TESTBED_Controller *controller,
658 struct GNUNET_TESTBED_Host *host,
659 const struct GNUNET_CONFIGURATION_Handle *cfg,
660 GNUNET_TESTBED_PeerCreateCallback cb,
665 * Start the given peer.
667 * @param peer peer to start
668 * @return handle to the operation
670 struct GNUNET_TESTBED_Operation *
671 GNUNET_TESTBED_peer_start (struct GNUNET_TESTBED_Peer *peer);
675 * Stop the given peer. The handle remains valid (use
676 * "GNUNET_TESTBED_peer_destroy" to fully clean up the
677 * state of the peer).
679 * @param peer peer to stop
680 * @return handle to the operation
682 struct GNUNET_TESTBED_Operation *
683 GNUNET_TESTBED_peer_stop (struct GNUNET_TESTBED_Peer *peer);
687 * Request information about a peer.
689 * @param peer peer to request information about
690 * @param pit desired information
691 * @return handle to the operation
693 struct GNUNET_TESTBED_Operation *
694 GNUNET_TESTBED_peer_get_information (struct GNUNET_TESTBED_Peer *peer,
695 enum GNUNET_TESTBED_PeerInformationType pit);
699 * Change peer configuration. Must only be called while the
700 * peer is stopped. Ports and paths cannot be changed this
703 * @param peer peer to change configuration for
704 * @param cfg new configuration (differences to existing
705 * configuration only)
706 * @return handle to the operation
708 struct GNUNET_TESTBED_Operation *
709 GNUNET_TESTBED_peer_update_configuration (struct GNUNET_TESTBED_Peer *peer,
710 const struct GNUNET_CONFIGURATION_Handle *cfg);
714 * Destroy the given peer; the peer should have been
715 * stopped first (if it was started).
717 * @param peer peer to stop
718 * @return handle to the operation
720 struct GNUNET_TESTBED_Operation *
721 GNUNET_TESTBED_peer_destroy (struct GNUNET_TESTBED_Peer *peer);
725 * Options for peer connections.
727 enum GNUNET_TESTBED_ConnectOption
730 * No option (not valid as an argument).
732 GNUNET_TESTBED_CO_NONE = 0,
735 * Allow or disallow a connection between the specified peers.
736 * Followed by GNUNET_NO (int) if a connection is disallowed
737 * or GNUNET_YES if a connection is allowed. Note that the
738 * default (all connections allowed or disallowed) is
739 * specified in the configuration of the controller.
741 GNUNET_TESTBED_CO_ALLOW = 1,
744 * FIXME: add (and implement) options to limit connection to
745 * particular transports, force simulation of particular latencies
746 * or message loss rates, or set bandwidth limitations.
753 * Manipulate the P2P underlay topology by configuring a link
756 * @param op_cls closure argument to give with the operation event
757 * @param p1 first peer
758 * @param p2 second peer
759 * @param co option to change
760 * @param ap option-specific values
761 * @return handle to the operation, NULL if configuring the link at this
762 * time is not allowed
764 struct GNUNET_TESTBED_Operation *
765 GNUNET_TESTBED_underlay_configure_link_va (void *op_cls,
766 struct GNUNET_TESTBED_Peer *p1,
767 struct GNUNET_TESTBED_Peer *p2,
768 enum GNUNET_TESTBED_ConnectOption co,
773 * Manipulate the P2P underlay topology by configuring a link
776 * @param op_cls closure argument to give with the operation event
777 * @param p1 first peer
778 * @param p2 second peer
779 * @param co option to change
780 * @param ... option-specific values
781 * @return handle to the operation, NULL if configuring the link at this
782 * time is not allowed
784 struct GNUNET_TESTBED_Operation *
785 GNUNET_TESTBED_underlay_configure_link (void *op_cls,
786 struct GNUNET_TESTBED_Peer *p1,
787 struct GNUNET_TESTBED_Peer *p2,
788 enum GNUNET_TESTBED_ConnectOption co, ...);
793 * Topologies supported for testbeds.
795 enum GNUNET_TESTBED_TopologyOption
798 * A clique (everyone connected to everyone else). No options.
800 GNUNET_TESTBED_TOPOLOGY_CLIQUE,
803 * Small-world network (2d torus plus random links). Followed
804 * by the number of random links to add (unsigned int).
806 GNUNET_TESTBED_TOPOLOGY_SMALL_WORLD,
809 * Small-world network (ring plus random links). Followed
810 * by the number of random links to add (unsigned int).
812 GNUNET_TESTBED_TOPOLOGY_SMALL_WORLD_RING,
815 * Ring topology. No options.
817 GNUNET_TESTBED_TOPOLOGY_RING,
820 * 2-d torus. No options.
822 GNUNET_TESTBED_TOPOLOGY_2D_TORUS,
825 * Random graph. Followed by the link density, that is the
826 * percentage of links present in relation to a clique
829 GNUNET_TESTBED_TOPOLOGY_ERDOS_RENYI,
832 * Certain percentage of peers are unable to communicate directly
833 * replicating NAT conditions. Followed by the fraction of
834 * NAT'ed peers (float).
836 GNUNET_TESTBED_TOPOLOGY_INTERNAT,
839 * Scale free topology. FIXME: options?
841 GNUNET_TESTBED_TOPOLOGY_SCALE_FREE,
844 * Straight line topology. No options.
846 GNUNET_TESTBED_TOPOLOGY_LINE,
849 * All peers are disconnected. No options.
851 GNUNET_TESTBED_TOPOLOGY_NONE,
854 * Read a topology from a given file. Followed by the name of the file (const char *).
856 GNUNET_TESTBED_TOPOLOGY_FROM_FILE
861 * Configure overall network topology to have a particular shape.
863 * @param op_cls closure argument to give with the operation event
864 * @param num_peers number of peers in 'peers'
865 * @param peers array of 'num_peers' with the peers to configure
866 * @param topo desired underlay topology to use
867 * @param ap topology-specific options
868 * @return handle to the operation, NULL if configuring the topology
869 * is not allowed at this time
871 struct GNUNET_TESTBED_Operation *
872 GNUNET_TESTBED_underlay_configure_topology_va (void *op_cls,
873 unsigned int num_peers,
874 struct GNUNET_TESTBED_Peer **peers,
875 enum GNUNET_TESTBED_TopologyOption topo,
880 * Configure overall network topology to have a particular shape.
882 * @param op_cls closure argument to give with the operation event
883 * @param num_peers number of peers in 'peers'
884 * @param peers array of 'num_peers' with the peers to configure
885 * @param topo desired underlay topology to use
886 * @param ... topology-specific options
887 * @return handle to the operation, NULL if configuring the topology
888 * is not allowed at this time
890 struct GNUNET_TESTBED_Operation *
891 GNUNET_TESTBED_underlay_configure_topology (void *op_cls,
892 unsigned int num_peers,
893 struct GNUNET_TESTBED_Peer **peers,
894 enum GNUNET_TESTBED_TopologyOption topo,
899 * Both peers must have been started before calling this function.
900 * This function then obtains a HELLO from 'p1', gives it to 'p2'
901 * and asks 'p2' to connect to 'p1'.
903 * @param op_cls closure argument to give with the operation event
904 * @param p1 first peer
905 * @param p2 second peer
906 * @return handle to the operation, NULL if connecting these two
907 * peers is fundamentally not possible at this time (peers
908 * not running or underlay disallows)
910 struct GNUNET_TESTBED_Operation *
911 GNUNET_TESTBED_overlay_connect (void *op_cls,
912 struct GNUNET_TESTBED_Peer *p1,
913 struct GNUNET_TESTBED_Peer *p2);
917 * All peers must have been started before calling this function.
918 * This function then connects the given peers in the P2P overlay
919 * using the given topology.
921 * @param op_cls closure argument to give with the operation event
922 * @param num_peers number of peers in 'peers'
923 * @param peers array of 'num_peers' with the peers to configure
924 * @param topo desired underlay topology to use
925 * @param va topology-specific options
926 * @return handle to the operation, NULL if connecting these
927 * peers is fundamentally not possible at this time (peers
928 * not running or underlay disallows)
930 struct GNUNET_TESTBED_Operation *
931 GNUNET_TESTBED_overlay_configure_topology_va (void *op_cls,
932 unsigned int num_peers,
933 struct GNUNET_TESTBED_Peer *peers,
934 enum GNUNET_TESTBED_TopologyOption topo,
939 * All peers must have been started before calling this function.
940 * This function then connects the given peers in the P2P overlay
941 * using the given topology.
943 * @param op_cls closure argument to give with the operation event
944 * @param num_peers number of peers in 'peers'
945 * @param peers array of 'num_peers' with the peers to configure
946 * @param topo desired underlay topology to use
947 * @param ... topology-specific options
948 * @return handle to the operation, NULL if connecting these
949 * peers is fundamentally not possible at this time (peers
950 * not running or underlay disallows)
952 struct GNUNET_TESTBED_Operation *
953 GNUNET_TESTBED_overlay_configure_topology (void *op_cls,
954 unsigned int num_peers,
955 struct GNUNET_TESTBED_Peer *peers,
956 enum GNUNET_TESTBED_TopologyOption topo,
961 * Ask the testbed controller to write the current overlay topology to
962 * a file. Naturally, the file will only contain a snapshot as the
963 * topology may evolve all the time.
965 * @param controller overlay controller to inspect
966 * @param filename name of the file the topology should
970 GNUNET_TESTBED_overlay_write_topology_to_file (struct GNUNET_TESTBED_Controller *controller,
971 const char *filename);
975 * Adapter function called to establish a connection to
979 * @param cfg configuration of the peer to connect to; will be available until
980 * GNUNET_TESTBED_operation_done() is called on the operation returned
981 * from GNUNET_TESTBED_service_connect()
982 * @return service handle to return in 'op_result', NULL on error
984 typedef void * (*GNUNET_TESTBED_ConnectAdapter)(void *cls,
985 const struct GNUNET_CONFIGURATION_Handle *cfg);
989 * Adapter function called to destroy a connection to
993 * @param op_result service handle returned from the connect adapter
995 typedef void (*GNUNET_TESTBED_DisconnectAdapter)(void *cls,
1000 * Connect to a service offered by the given peer. Will ensure that
1001 * the request is queued to not overwhelm our ability to create and
1002 * maintain connections with other systems. The actual service
1003 * handle is then returned via the 'op_result' member in the event
1004 * callback. The 'ca' callback is used to create the connection
1005 * when the time is right; the 'da' callback will be used to
1006 * destroy the connection (upon 'GNUNET_TESTBED_operation_done').
1007 * 'GNUNET_TESTBED_operation_cancel' can be used to abort this
1008 * operation until the event callback has been called.
1010 * @param op_cls closure to pass in operation event
1011 * @param peer peer that runs the service
1012 * @param service_name name of the service to connect to
1013 * @param ca helper function to establish the connection
1014 * @param da helper function to close the connection
1015 * @param cada_cls closure for ca and da
1016 * @return handle for the operation
1018 struct GNUNET_TESTBED_Operation *
1019 GNUNET_TESTBED_service_connect (void *op_cls,
1020 struct GNUNET_TESTBED_Peer *peer,
1021 const char *service_name,
1022 GNUNET_TESTBED_ConnectAdapter ca,
1023 GNUNET_TESTBED_DisconnectAdapter da,
1028 * Cancel a pending operation. Releases all resources
1029 * of the operation and will ensure that no event
1030 * is generated for the operation. Does NOT guarantee
1031 * that the operation will be fully undone (or that
1032 * nothing ever happened).
1034 * @param operation operation to cancel
1037 GNUNET_TESTBED_operation_cancel (struct GNUNET_TESTBED_Operation *operation);
1041 * Signal that the information from an operation has been fully
1042 * processed. This function MUST be called for each event
1043 * of type 'operation_finished' to fully remove the operation
1044 * from the operation queue. After calling this function, the
1045 * 'op_result' becomes invalid (!).
1047 * @param operation operation to signal completion for
1050 GNUNET_TESTBED_operation_done (struct GNUNET_TESTBED_Operation *operation);
1054 * Configure and run a testbed using the given
1055 * master controller on 'num_hosts' starting
1056 * 'num_peers' using the given peer configuration.
1058 * @param controller master controller for the testbed
1059 * (must not be destroyed until after the
1060 * testbed is destroyed).
1061 * @param num_hosts number of hosts in 'hosts', 0 to only
1063 * @param hosts list of hosts to use for the testbed
1064 * @param num_peers number of peers to start
1065 * @param peer_cfg peer configuration template to use
1066 * @param underlay_topology underlay topology to create
1067 * @param va topology-specific options
1068 * @return handle to the testbed
1070 struct GNUNET_TESTBED_Testbed *
1071 GNUNET_TESTBED_create_va (struct GNUNET_TESTBED_Controller *controller,
1072 unsigned int num_hosts,
1073 struct GNUNET_TESTBED_Host **hosts,
1074 unsigned int num_peers,
1075 const struct GNUNET_CONFIGURATION_Handle *peer_cfg,
1076 enum GNUNET_TESTBED_TopologyOption underlay_topology,
1081 * Configure and run a testbed using the given
1082 * master controller on 'num_hosts' starting
1083 * 'num_peers' using the given peer configuration.
1085 * @param controller master controller for the testbed
1086 * (must not be destroyed until after the
1087 * testbed is destroyed).
1088 * @param num_hosts number of hosts in 'hosts', 0 to only
1090 * @param hosts list of hosts to use for the testbed
1091 * @param num_peers number of peers to start
1092 * @param peer_cfg peer configuration template to use
1093 * @param underlay_topology underlay topology to create
1094 * @param ... topology-specific options
1096 struct GNUNET_TESTBED_Testbed *
1097 GNUNET_TESTBED_create (struct GNUNET_TESTBED_Controller *controller,
1098 unsigned int num_hosts,
1099 struct GNUNET_TESTBED_Host **hosts,
1100 unsigned int num_peers,
1101 const struct GNUNET_CONFIGURATION_Handle *peer_cfg,
1102 enum GNUNET_TESTBED_TopologyOption underlay_topology,
1107 * Destroy a testbed. Stops all running peers and then
1108 * destroys all peers. Does NOT destroy the master controller.
1110 * @param testbed testbed to destroy
1113 GNUNET_TESTBED_destroy (struct GNUNET_TESTBED_Testbed *testbed);
1117 * Convenience method for running a testbed with
1118 * a single call. Underlay and overlay topology
1119 * are configured using the "UNDERLAY" and "OVERLAY"
1120 * options in the "[testbed]" section of the configuration\
1121 * (with possible options given in "UNDERLAY_XXX" and/or
1124 * The testbed is to be terminated using a call to
1125 * "GNUNET_SCHEDULER_shutdown".
1127 * @param host_filename name of the file with the 'hosts', NULL
1128 * to run everything on 'localhost'
1129 * @param cfg configuration to use (for testbed, controller and peers)
1130 * @param num_peers number of peers to start; FIXME: maybe put that ALSO into cfg?
1131 * @param event_mask bit mask with set of events to call 'cc' for;
1132 * or-ed values of "1LL" shifted by the
1133 * respective 'enum GNUNET_TESTBED_EventType'
1134 * (i.e. "(1LL << GNUNET_TESTBED_ET_CONNECT) || ...")
1135 * @param cc controller callback to invoke on events; This callback is called
1136 * for all peer start events even if GNUNET_TESTBED_ET_PEER_START isn't
1137 * set in the event_mask as this is the only way get access to the
1138 * handle of each peer
1139 * @param cc_cls closure for cc
1140 * @param master task to run once the testbed is ready
1141 * @param master_cls closure for 'task'.
1144 GNUNET_TESTBED_run (const char *host_filename,
1145 const struct GNUNET_CONFIGURATION_Handle *cfg,
1146 unsigned int num_peers,
1147 uint64_t event_mask,
1148 GNUNET_TESTBED_ControllerCallback cc,
1150 GNUNET_SCHEDULER_Task master,
1155 * Signature of a main function for a testcase.
1157 * @param cls closure
1158 * @param num_peers number of peers in 'peers'
1159 * @param peers handle to peers run in the testbed
1161 typedef void (*GNUNET_TESTBED_TestMaster)(void *cls,
1162 unsigned int num_peers,
1163 struct GNUNET_TESTBED_Peer **peers);
1167 * Convenience method for running a "simple" test on the local system
1168 * with a single call from 'main'. Underlay and overlay topology are
1169 * configured using the "UNDERLAY" and "OVERLAY" options in the
1170 * "[testbed]" section of the configuration (with possible options
1171 * given in "UNDERLAY_XXX" and/or "OVERLAY_XXX").
1173 * The test is to be terminated using a call to
1174 * "GNUNET_SCHEDULER_shutdown". If starting the test fails,
1175 * the program is stopped without 'master' ever being run.
1177 * NOTE: this function should be called from 'main', NOT from
1178 * within a GNUNET_SCHEDULER-loop. This function will initialze
1179 * the scheduler loop, the testbed and then pass control to
1182 * @param testname name of the testcase (to configure logging, etc.)
1183 * @param cfg_filename configuration filename to use
1184 * (for testbed, controller and peers)
1185 * @param num_peers number of peers to start
1186 * @param test_master task to run once the test is ready
1187 * @param test_master_cls closure for 'task'.
1190 GNUNET_TESTBED_test_run (const char *testname,
1191 const char *cfg_filename,
1192 unsigned int num_peers,
1193 GNUNET_TESTBED_TestMaster test_master,
1194 void *test_master_cls);
1197 #if 0 /* keep Emacsens' auto-indent happy */