2 This file is part of GNUnet
3 (C) 2008, 2009, 2012 Christian Grothoff (and other contributing authors)
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6 it under the terms of the GNU General Public License as published
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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 * No result (NULL pointer) or generic result
313 * (whatever the GNUNET_TESTBED_ConnectAdapter returned).
317 } operation_finished;
321 * Details about an testbed run completed event.
327 * Error message for the operation, NULL on success.
332 * Array of peers now running (valid until
333 * 'GNUNET_TESTBED_testbed_stop' is called). Note that it is
334 * not allowed to call 'GNUNET_TESTBED_peer_destroy' on peers
337 struct GNUNET_TESTBED_Peer **peers;
340 * Size of the 'peers' array.
342 unsigned int num_peers;
344 } testbed_run_finished;
352 * Signature of the event handler function called by the
353 * respective event controller.
356 * @param event information about the event
358 typedef void (*GNUNET_TESTBED_ControllerCallback)(void *cls,
359 const struct GNUNET_TESTBED_EventInformation *event);
363 * Opaque Handle for Controller process
365 struct GNUNET_TESTBED_ControllerProc;
369 * Callback to signal successfull startup of the controller process
371 * @param cls the closure from GNUNET_TESTBED_controller_start()
372 * @param cfg the configuration with which the controller has been started;
373 * NULL if status is not GNUNET_OK
374 * @param status GNUNET_OK if the startup is successfull; GNUNET_SYSERR if not,
375 * GNUNET_TESTBED_controller_stop() shouldn't be called in this case
377 typedef void (*GNUNET_TESTBED_ControllerStatusCallback) (void *cls,
378 const struct GNUNET_CONFIGURATION_Handle *cfg,
383 * Starts a controller process at the host. FIXME: add controller start callback
384 * with the configuration with which the controller is started
386 * @param controller_ip the ip address of the controller. Will be set as TRUSTED
387 * host when starting testbed controller at host
388 * @param host the host where the controller has to be started; NULL for
390 * @param cfg template configuration to use for the remote controller; the
391 * remote controller will be started with a slightly modified
392 * configuration (port numbers, unix domain sockets and service home
393 * values are changed as per TESTING library on the remote host)
394 * @param cb function called when the controller is successfully started or
395 * dies unexpectedly; GNUNET_TESTBED_controller_stop shouldn't be
396 * called if cb is called with GNUNET_SYSERR as status. Will never be
397 * called in the same task as 'GNUNET_TESTBED_controller_start'
398 * (synchronous errors will be signalled by returning NULL). This
399 * parameter cannot be NULL.
400 * @param cls closure for above callbacks
401 * @return the controller process handle, NULL on errors
403 struct GNUNET_TESTBED_ControllerProc *
404 GNUNET_TESTBED_controller_start (const char *controller_ip,
405 struct GNUNET_TESTBED_Host *host,
406 const struct GNUNET_CONFIGURATION_Handle *cfg,
407 GNUNET_TESTBED_ControllerStatusCallback cb,
412 * Stop the controller process (also will terminate all peers and controllers
413 * dependent on this controller). This function blocks until the testbed has
414 * been fully terminated (!).
416 * @param cproc the controller process handle
419 GNUNET_TESTBED_controller_stop (struct GNUNET_TESTBED_ControllerProc *cproc);
423 * Connect to a controller process using the given configuration at the
426 * @param cfg configuration to use
427 * @param host host to run the controller on; This should be the same host if
428 * the controller was previously started with
429 * GNUNET_TESTBED_controller_start; NULL for localhost
430 * @param host host where this controller is being run;
431 * @param event_mask bit mask with set of events to call 'cc' for;
432 * or-ed values of "1LL" shifted by the
433 * respective 'enum GNUNET_TESTBED_EventType'
434 * (i.e. "(1LL << GNUNET_TESTBED_ET_CONNECT) | ...")
435 * @param cc controller callback to invoke on events
436 * @param cc_cls closure for cc
437 * @return handle to the controller
439 struct GNUNET_TESTBED_Controller *
440 GNUNET_TESTBED_controller_connect (const struct GNUNET_CONFIGURATION_Handle *cfg,
441 struct GNUNET_TESTBED_Host *host,
443 GNUNET_TESTBED_ControllerCallback cc,
448 * Configure shared services at a controller. Using this function,
449 * you can specify that certain services (such as "resolver")
450 * should not be run for each peer but instead be shared
451 * across N peers on the specified host. This function
452 * must be called before any peers are created at the host.
454 * @param controller controller to configure
455 * @param service_name name of the service to share
456 * @param num_peers number of peers that should share one instance
457 * of the specified service (1 for no sharing is the default),
458 * use 0 to disable the service
461 GNUNET_TESTBED_controller_configure_sharing (struct GNUNET_TESTBED_Controller *controller,
462 const char *service_name,
467 * Stop the given controller (also will terminate all peers and
468 * controllers dependent on this controller). This function
469 * blocks until the testbed has been fully terminated (!).
471 * @param controller handle to controller to stop
474 GNUNET_TESTBED_controller_disconnect (struct GNUNET_TESTBED_Controller *controller);
478 * Opaque handle for host registration
480 struct GNUNET_TESTBED_HostRegistrationHandle;
484 * Callback which will be called to after a host registration succeeded or failed
486 * @param cls the closure
487 * @param emsg the error message; NULL if host registration is successful
489 typedef void (* GNUNET_TESTBED_HostRegistrationCompletion) (void *cls,
494 * Register a host with the controller
496 * @param controller the controller handle
497 * @param host the host to register
498 * @param cc the completion callback to call to inform the status of
499 * registration. After calling this callback the registration handle
500 * will be invalid. Cannot be NULL
501 * @param cc_cls the closure for the cc
502 * @return handle to the host registration which can be used to cancel the
503 * registration; NULL if another registration handle is present and
506 struct GNUNET_TESTBED_HostRegistrationHandle *
507 GNUNET_TESTBED_register_host (struct GNUNET_TESTBED_Controller *controller,
508 struct GNUNET_TESTBED_Host *host,
509 GNUNET_TESTBED_HostRegistrationCompletion cc,
514 * Cancel the pending registration. Note that the registration message will
515 * already be queued to be sent to the service, cancellation has only the
516 * effect that the registration completion callback for the registration is
517 * never called and from our perspective the host is not registered until the
518 * completion callback is called.
520 * @param handle the registration handle to cancel
523 GNUNET_TESTBED_cancel_registration (struct GNUNET_TESTBED_HostRegistrationHandle
528 * Callback to be called when an operation is completed
530 * @param cls the callback closure from functions generating an operation
531 * @param op the operation that has been finished
532 * @param emsg error message in case the operation has failed; will be NULL if
533 * operation has executed successfully.
535 typedef void (*GNUNET_TESTBED_OperationCompletionCallback) (void *cls,
537 GNUNET_TESTBED_Operation
543 * Create a link from slave controller to delegated controller. Whenever the
544 * master controller is asked to start a peer at the delegated controller the
545 * request will be routed towards slave controller (if a route exists). The
546 * slave controller will then route it to the delegated controller. The
547 * configuration of the slave controller is given and to be used to either
548 * create the slave controller or to connect to an existing slave controller
549 * process. 'is_subordinate' specifies if the given slave controller should be
550 * started and managed by the master controller, or if the slave already has a
551 * master and this is just a secondary master that is also allowed to use the
554 * @param master handle to the master controller who creates the association
555 * @param delegated_host requests to which host should be delegated; cannot be NULL
556 * @param slave_host which host is used to run the slave controller; use NULL to
557 * make the master controller connect to the delegated host
558 * @param slave_cfg configuration to use for the slave controller
559 * @param is_subordinate GNUNET_YES if the controller at delegated_host should
560 * be started by the master controller; GNUNET_NO if we are just
561 * allowed to use the slave via TCP/IP
562 * @return the operation handle
564 struct GNUNET_TESTBED_Operation *
565 GNUNET_TESTBED_controller_link (struct GNUNET_TESTBED_Controller *master,
566 struct GNUNET_TESTBED_Host *delegated_host,
567 struct GNUNET_TESTBED_Host *slave_host,
568 const struct GNUNET_CONFIGURATION_Handle *slave_cfg,
573 * Same as the GNUNET_TESTBED_controller_link, however expects configuration in
574 * serialized and compressed
576 * @param master handle to the master controller who creates the association
577 * @param delegated_host requests to which host should be delegated; cannot be NULL
578 * @param slave_host which host is used to run the slave controller; use NULL to
579 * make the master controller connect to the delegated host
580 * @param sxcfg serialized and compressed configuration
581 * @param sxcfg_size the size scfg
582 * @param scfg_size the size of uncompressed serialized configuration
583 * @param is_subordinate GNUNET_YES if the controller at delegated_host should
584 * be started by the master controller; GNUNET_NO if we are just
585 * allowed to use the slave via TCP/IP
586 * @return the operation handle
588 struct GNUNET_TESTBED_Operation *
589 GNUNET_TESTBED_controller_link_2 (struct GNUNET_TESTBED_Controller *master,
590 struct GNUNET_TESTBED_Host *delegated_host,
591 struct GNUNET_TESTBED_Host *slave_host,
599 * Functions of this signature are called when a peer has been successfully
602 * @param cls the closure from GNUNET_TESTBED_peer_create()
603 * @param peer the handle for the created peer; NULL on any error during
605 * @param emsg NULL if peer is not NULL; else MAY contain the error description
607 typedef void (*GNUNET_TESTBED_PeerCreateCallback) (void *cls,
608 struct GNUNET_TESTBED_Peer *peer,
613 * Create the given peer at the specified host using the given
614 * controller. If the given controller is not running on the target
615 * host, it should find or create a controller at the target host and
616 * delegate creating the peer. Explicit delegation paths can be setup
617 * using 'GNUNET_TESTBED_controller_link'. If no explicit delegation
618 * path exists, a direct link with a subordinate controller is setup
619 * for the first delegated peer to a particular host; the subordinate
620 * controller is then destroyed once the last peer that was delegated
621 * to the remote host is stopped.
623 * Creating the peer only creates the handle to manipulate and further
624 * configure the peer; use "GNUNET_TESTBED_peer_start" and
625 * "GNUNET_TESTBED_peer_stop" to actually start/stop the peer's
628 * Note that the given configuration will be adjusted by the
629 * controller to avoid port/path conflicts with other peers.
630 * The "final" configuration can be obtained using
631 * 'GNUNET_TESTBED_peer_get_information'.
633 * @param controller controller process to use
634 * @param host host to run the peer on
635 * @param cfg Template configuration to use for the peer. Should exist until
636 * operation is cancelled or GNUNET_TESTBED_operation_done() is called
637 * @param cb the callback to call when the peer has been created
638 * @param cls the closure to the above callback
639 * @return the operation handle
641 struct GNUNET_TESTBED_Operation *
642 GNUNET_TESTBED_peer_create (struct GNUNET_TESTBED_Controller *controller,
643 struct GNUNET_TESTBED_Host *host,
644 const struct GNUNET_CONFIGURATION_Handle *cfg,
645 GNUNET_TESTBED_PeerCreateCallback cb,
650 * Functions of this signature are called when a peer has been successfully
651 * started or stopped.
653 * @param cls the closure from GNUNET_TESTBED_peer_start/stop()
654 * @param emsg NULL on success; otherwise an error description
656 typedef void (*GNUNET_TESTBED_PeerChurnCallback) (void *cls,
661 * Start the given peer.
663 * @param peer peer to start
664 * @param pcc function to call upon completion
665 * @param pcc_cls closure for 'pcc'
666 * @return handle to the operation
668 struct GNUNET_TESTBED_Operation *
669 GNUNET_TESTBED_peer_start (struct GNUNET_TESTBED_Peer *peer,
670 GNUNET_TESTBED_PeerChurnCallback pcc,
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 * @param pcc function to call upon completion
681 * @param pcc_cls closure for 'pcc'
682 * @return handle to the operation
684 struct GNUNET_TESTBED_Operation *
685 GNUNET_TESTBED_peer_stop (struct GNUNET_TESTBED_Peer *peer,
686 GNUNET_TESTBED_PeerChurnCallback pcc,
691 * Data returned from GNUNET_TESTBED_peer_get_information
693 struct GNUNET_TESTBED_PeerInformation
696 * Peer information type; captures which of the types
697 * in the 'op_result' is actually in use.
699 enum GNUNET_TESTBED_PeerInformationType pit;
702 * The result of the get information operation; Choose according to the pit
707 * The configuration of the peer
709 struct GNUNET_CONFIGURATION_Handle *cfg;
712 * The identity of the peer
714 struct GNUNET_PeerIdentity *id;
720 * Callback to be called when the requested peer information is available
722 * @param cb_cls the closure from GNUNET_TETSBED_peer_get_information()
723 * @param op the operation this callback corresponds to
724 * @param pinfo the result; will be NULL if the operation has failed
725 * @param emsg error message if the operation has failed; will be NULL if the
726 * operation is successfull
728 typedef void (*GNUNET_TESTBED_PeerInfoCallback) (void *cb_cls,
729 struct GNUNET_TESTBED_Operation
732 GNUNET_TESTBED_PeerInformation
738 * Request information about a peer. The controller callback will be called with
739 * event type GNUNET_TESTBED_ET_OPERATION_FINISHED when result for this
740 * operation is available
742 * @param peer peer to request information about
743 * @param pit desired information
744 * @param cb the convenience callback to be called when results for this
745 * operation are available
746 * @param cb_cls the closure for the above callback
747 * @return handle to the operation
749 struct GNUNET_TESTBED_Operation *
750 GNUNET_TESTBED_peer_get_information (struct GNUNET_TESTBED_Peer *peer,
751 enum GNUNET_TESTBED_PeerInformationType
753 GNUNET_TESTBED_PeerInfoCallback cb,
758 * Change peer configuration. Must only be called while the
759 * peer is stopped. Ports and paths cannot be changed this
762 * @param peer peer to change configuration for
763 * @param cfg new configuration (differences to existing
764 * configuration only)
765 * @return handle to the operation
767 struct GNUNET_TESTBED_Operation *
768 GNUNET_TESTBED_peer_update_configuration (struct GNUNET_TESTBED_Peer *peer,
769 const struct GNUNET_CONFIGURATION_Handle *cfg);
773 * Destroy the given peer; the peer should have been
774 * stopped first (if it was started).
776 * @param peer peer to stop
777 * @return handle to the operation
779 struct GNUNET_TESTBED_Operation *
780 GNUNET_TESTBED_peer_destroy (struct GNUNET_TESTBED_Peer *peer);
784 * Options for peer connections.
786 enum GNUNET_TESTBED_ConnectOption
789 * No option (not valid as an argument).
791 GNUNET_TESTBED_CO_NONE = 0,
794 * Allow or disallow a connection between the specified peers.
795 * Followed by GNUNET_NO (int) if a connection is disallowed
796 * or GNUNET_YES if a connection is allowed. Note that the
797 * default (all connections allowed or disallowed) is
798 * specified in the configuration of the controller.
800 GNUNET_TESTBED_CO_ALLOW = 1,
803 * FIXME: add (and implement) options to limit connection to
804 * particular transports, force simulation of particular latencies
805 * or message loss rates, or set bandwidth limitations.
812 * Manipulate the P2P underlay topology by configuring a link
815 * @param op_cls closure argument to give with the operation event
816 * @param p1 first peer
817 * @param p2 second peer
818 * @param co option to change
819 * @param ap option-specific values
820 * @return handle to the operation, NULL if configuring the link at this
821 * time is not allowed
823 struct GNUNET_TESTBED_Operation *
824 GNUNET_TESTBED_underlay_configure_link_va (void *op_cls,
825 struct GNUNET_TESTBED_Peer *p1,
826 struct GNUNET_TESTBED_Peer *p2,
827 enum GNUNET_TESTBED_ConnectOption co,
832 * Manipulate the P2P underlay topology by configuring a link
835 * @param op_cls closure argument to give with the operation event
836 * @param p1 first peer
837 * @param p2 second peer
838 * @param co option to change
839 * @param ... option-specific values
840 * @return handle to the operation, NULL if configuring the link at this
841 * time is not allowed
843 struct GNUNET_TESTBED_Operation *
844 GNUNET_TESTBED_underlay_configure_link (void *op_cls,
845 struct GNUNET_TESTBED_Peer *p1,
846 struct GNUNET_TESTBED_Peer *p2,
847 enum GNUNET_TESTBED_ConnectOption co, ...);
852 * Topologies supported for testbeds.
854 enum GNUNET_TESTBED_TopologyOption
857 * A clique (everyone connected to everyone else). No options.
859 GNUNET_TESTBED_TOPOLOGY_CLIQUE,
862 * Small-world network (2d torus plus random links). Followed
863 * by the number of random links to add (unsigned int).
865 GNUNET_TESTBED_TOPOLOGY_SMALL_WORLD,
868 * Small-world network (ring plus random links). Followed
869 * by the number of random links to add (unsigned int).
871 GNUNET_TESTBED_TOPOLOGY_SMALL_WORLD_RING,
874 * Ring topology. No options.
876 GNUNET_TESTBED_TOPOLOGY_RING,
879 * 2-d torus. No options.
881 GNUNET_TESTBED_TOPOLOGY_2D_TORUS,
884 * Random graph. Followed by the link density, that is the
885 * percentage of links present in relation to a clique
888 GNUNET_TESTBED_TOPOLOGY_ERDOS_RENYI,
891 * Certain percentage of peers are unable to communicate directly
892 * replicating NAT conditions. Followed by the fraction of
893 * NAT'ed peers (float).
895 GNUNET_TESTBED_TOPOLOGY_INTERNAT,
898 * Scale free topology. FIXME: options?
900 GNUNET_TESTBED_TOPOLOGY_SCALE_FREE,
903 * Straight line topology. No options.
905 GNUNET_TESTBED_TOPOLOGY_LINE,
908 * All peers are disconnected. No options.
910 GNUNET_TESTBED_TOPOLOGY_NONE,
913 * Read a topology from a given file. Followed by the name of the file (const char *).
915 GNUNET_TESTBED_TOPOLOGY_FROM_FILE
920 * Configure overall network topology to have a particular shape.
922 * @param op_cls closure argument to give with the operation event
923 * @param num_peers number of peers in 'peers'
924 * @param peers array of 'num_peers' with the peers to configure
925 * @param topo desired underlay topology to use
926 * @param ap topology-specific options
927 * @return handle to the operation, NULL if configuring the topology
928 * is not allowed at this time
930 struct GNUNET_TESTBED_Operation *
931 GNUNET_TESTBED_underlay_configure_topology_va (void *op_cls,
932 unsigned int num_peers,
933 struct GNUNET_TESTBED_Peer **peers,
934 enum GNUNET_TESTBED_TopologyOption topo,
939 * Configure overall network topology to have a particular shape.
941 * @param op_cls closure argument to give with the operation event
942 * @param num_peers number of peers in 'peers'
943 * @param peers array of 'num_peers' with the peers to configure
944 * @param topo desired underlay topology to use
945 * @param ... topology-specific options
946 * @return handle to the operation, NULL if configuring the topology
947 * is not allowed at this time
949 struct GNUNET_TESTBED_Operation *
950 GNUNET_TESTBED_underlay_configure_topology (void *op_cls,
951 unsigned int num_peers,
952 struct GNUNET_TESTBED_Peer **peers,
953 enum GNUNET_TESTBED_TopologyOption topo,
958 * Both peers must have been started before calling this function.
959 * This function then obtains a HELLO from 'p1', gives it to 'p2'
960 * and asks 'p2' to connect to 'p1'.
962 * @param op_cls closure argument to give with the operation event
963 * @param cb the callback to call when this operation has finished
964 * @param cb_cls the closure for the above callback
965 * @param p1 first peer
966 * @param p2 second peer
967 * @return handle to the operation, NULL if connecting these two
968 * peers is fundamentally not possible at this time (peers
969 * not running or underlay disallows)
971 struct GNUNET_TESTBED_Operation *
972 GNUNET_TESTBED_overlay_connect (void *op_cls,
973 GNUNET_TESTBED_OperationCompletionCallback cb,
975 struct GNUNET_TESTBED_Peer *p1,
976 struct GNUNET_TESTBED_Peer *p2);
980 * All peers must have been started before calling this function.
981 * This function then connects the given peers in the P2P overlay
982 * using the given topology.
984 * @param op_cls closure argument to give with the operation event
985 * @param num_peers number of peers in 'peers'
986 * @param peers array of 'num_peers' with the peers to configure
987 * @param topo desired underlay topology to use
988 * @param va topology-specific options
989 * @return handle to the operation, NULL if connecting these
990 * peers is fundamentally not possible at this time (peers
991 * not running or underlay disallows)
993 struct GNUNET_TESTBED_Operation *
994 GNUNET_TESTBED_overlay_configure_topology_va (void *op_cls,
995 unsigned int num_peers,
996 struct GNUNET_TESTBED_Peer *peers,
997 enum GNUNET_TESTBED_TopologyOption topo,
1002 * All peers must have been started before calling this function.
1003 * This function then connects the given peers in the P2P overlay
1004 * using the given topology.
1006 * @param op_cls closure argument to give with the operation event
1007 * @param num_peers number of peers in 'peers'
1008 * @param peers array of 'num_peers' with the peers to configure
1009 * @param topo desired underlay topology to use
1010 * @param ... topology-specific options
1011 * @return handle to the operation, NULL if connecting these
1012 * peers is fundamentally not possible at this time (peers
1013 * not running or underlay disallows)
1015 struct GNUNET_TESTBED_Operation *
1016 GNUNET_TESTBED_overlay_configure_topology (void *op_cls,
1017 unsigned int num_peers,
1018 struct GNUNET_TESTBED_Peer *peers,
1019 enum GNUNET_TESTBED_TopologyOption topo,
1024 * Ask the testbed controller to write the current overlay topology to
1025 * a file. Naturally, the file will only contain a snapshot as the
1026 * topology may evolve all the time.
1028 * @param controller overlay controller to inspect
1029 * @param filename name of the file the topology should
1033 GNUNET_TESTBED_overlay_write_topology_to_file (struct GNUNET_TESTBED_Controller *controller,
1034 const char *filename);
1038 * Adapter function called to establish a connection to
1041 * @param cls closure
1042 * @param cfg configuration of the peer to connect to; will be available until
1043 * GNUNET_TESTBED_operation_done() is called on the operation returned
1044 * from GNUNET_TESTBED_service_connect()
1045 * @return service handle to return in 'op_result', NULL on error
1047 typedef void * (*GNUNET_TESTBED_ConnectAdapter)(void *cls,
1048 const struct GNUNET_CONFIGURATION_Handle *cfg);
1052 * Adapter function called to destroy a connection to
1055 * @param cls closure
1056 * @param op_result service handle returned from the connect adapter
1058 typedef void (*GNUNET_TESTBED_DisconnectAdapter)(void *cls,
1063 * Callback to be called when a service connect operation is completed
1065 * @param cls the callback closure from functions generating an operation
1066 * @param op the operation that has been finished
1067 * @param ca_result the service handle returned from GNUNET_TESTBED_ConnectAdapter()
1068 * @param emsg error message in case the operation has failed; will be NULL if
1069 * operation has executed successfully.
1071 typedef void (*GNUNET_TESTBED_ServiceConnectCompletionCallback) (void *cls,
1073 GNUNET_TESTBED_Operation
1082 * Connect to a service offered by the given peer. Will ensure that
1083 * the request is queued to not overwhelm our ability to create and
1084 * maintain connections with other systems. The actual service
1085 * handle is then returned via the 'op_result' member in the event
1086 * callback. The 'ca' callback is used to create the connection
1087 * when the time is right; the 'da' callback will be used to
1088 * destroy the connection (upon 'GNUNET_TESTBED_operation_done').
1089 * 'GNUNET_TESTBED_operation_cancel' can be used to abort this
1090 * operation until the event callback has been called.
1092 * @param op_cls closure to pass in operation event
1093 * @param peer peer that runs the service
1094 * @param service_name name of the service to connect to
1095 * @param cb the callback to call when this operation finishes
1096 * @param cb_cls closure for the above callback
1097 * @param ca helper function to establish the connection
1098 * @param da helper function to close the connection
1099 * @param cada_cls closure for ca and da
1100 * @return handle for the operation
1102 struct GNUNET_TESTBED_Operation *
1103 GNUNET_TESTBED_service_connect (void *op_cls,
1104 struct GNUNET_TESTBED_Peer *peer,
1105 const char *service_name,
1106 GNUNET_TESTBED_ServiceConnectCompletionCallback cb,
1108 GNUNET_TESTBED_ConnectAdapter ca,
1109 GNUNET_TESTBED_DisconnectAdapter da,
1114 * Cancel a pending operation. Releases all resources
1115 * of the operation and will ensure that no event
1116 * is generated for the operation. Does NOT guarantee
1117 * that the operation will be fully undone (or that
1118 * nothing ever happened).
1120 * @param operation operation to cancel
1123 GNUNET_TESTBED_operation_cancel (struct GNUNET_TESTBED_Operation *operation);
1127 * Signal that the information from an operation has been fully
1128 * processed. This function MUST be called for each event
1129 * of type 'operation_finished' to fully remove the operation
1130 * from the operation queue. After calling this function, the
1131 * 'op_result' becomes invalid (!).
1133 * @param operation operation to signal completion for
1136 GNUNET_TESTBED_operation_done (struct GNUNET_TESTBED_Operation *operation);
1140 * Configure and run a testbed using the given
1141 * master controller on 'num_hosts' starting
1142 * 'num_peers' using the given peer configuration.
1144 * @param controller master controller for the testbed
1145 * (must not be destroyed until after the
1146 * testbed is destroyed).
1147 * @param num_hosts number of hosts in 'hosts', 0 to only
1149 * @param hosts list of hosts to use for the testbed
1150 * @param num_peers number of peers to start
1151 * @param peer_cfg peer configuration template to use
1152 * @param underlay_topology underlay topology to create
1153 * @param va topology-specific options
1154 * @return handle to the testbed
1156 struct GNUNET_TESTBED_Testbed *
1157 GNUNET_TESTBED_create_va (struct GNUNET_TESTBED_Controller *controller,
1158 unsigned int num_hosts,
1159 struct GNUNET_TESTBED_Host **hosts,
1160 unsigned int num_peers,
1161 const struct GNUNET_CONFIGURATION_Handle *peer_cfg,
1162 enum GNUNET_TESTBED_TopologyOption underlay_topology,
1167 * Configure and run a testbed using the given
1168 * master controller on 'num_hosts' starting
1169 * 'num_peers' using the given peer configuration.
1171 * @param controller master controller for the testbed
1172 * (must not be destroyed until after the
1173 * testbed is destroyed).
1174 * @param num_hosts number of hosts in 'hosts', 0 to only
1176 * @param hosts list of hosts to use for the testbed
1177 * @param num_peers number of peers to start
1178 * @param peer_cfg peer configuration template to use
1179 * @param underlay_topology underlay topology to create
1180 * @param ... topology-specific options
1182 struct GNUNET_TESTBED_Testbed *
1183 GNUNET_TESTBED_create (struct GNUNET_TESTBED_Controller *controller,
1184 unsigned int num_hosts,
1185 struct GNUNET_TESTBED_Host **hosts,
1186 unsigned int num_peers,
1187 const struct GNUNET_CONFIGURATION_Handle *peer_cfg,
1188 enum GNUNET_TESTBED_TopologyOption underlay_topology,
1193 * Destroy a testbed. Stops all running peers and then
1194 * destroys all peers. Does NOT destroy the master controller.
1196 * @param testbed testbed to destroy
1199 GNUNET_TESTBED_destroy (struct GNUNET_TESTBED_Testbed *testbed);
1203 * Convenience method for running a testbed with
1204 * a single call. Underlay and overlay topology
1205 * are configured using the "UNDERLAY" and "OVERLAY"
1206 * options in the "[testbed]" section of the configuration\
1207 * (with possible options given in "UNDERLAY_XXX" and/or
1210 * The testbed is to be terminated using a call to
1211 * "GNUNET_SCHEDULER_shutdown".
1213 * @param host_filename name of the file with the 'hosts', NULL
1214 * to run everything on 'localhost'
1215 * @param cfg configuration to use (for testbed, controller and peers)
1216 * @param num_peers number of peers to start; FIXME: maybe put that ALSO into
1217 * cfg?; should be greater than 0
1218 * @param event_mask bit mask with set of events to call 'cc' for;
1219 * or-ed values of "1LL" shifted by the
1220 * respective 'enum GNUNET_TESTBED_EventType'
1221 * (i.e. "(1LL << GNUNET_TESTBED_ET_CONNECT) || ...")
1222 * @param cc controller callback to invoke on events; This callback is called
1223 * for all peer start events even if GNUNET_TESTBED_ET_PEER_START isn't
1224 * set in the event_mask as this is the only way get access to the
1225 * handle of each peer
1226 * @param cc_cls closure for cc
1227 * @param master task to run once the testbed is ready
1228 * @param master_cls closure for 'task'.
1231 GNUNET_TESTBED_run (const char *host_filename,
1232 const struct GNUNET_CONFIGURATION_Handle *cfg,
1233 unsigned int num_peers,
1234 uint64_t event_mask,
1235 GNUNET_TESTBED_ControllerCallback cc,
1237 GNUNET_SCHEDULER_Task master,
1242 * Signature of a main function for a testcase.
1244 * @param cls closure
1245 * @param num_peers number of peers in 'peers'
1246 * @param peers handle to peers run in the testbed
1248 typedef void (*GNUNET_TESTBED_TestMaster)(void *cls,
1249 unsigned int num_peers,
1250 struct GNUNET_TESTBED_Peer **peers);
1254 * Convenience method for running a "simple" test on the local system
1255 * with a single call from 'main'. Underlay and overlay topology are
1256 * configured using the "UNDERLAY" and "OVERLAY" options in the
1257 * "[testbed]" section of the configuration (with possible options
1258 * given in "UNDERLAY_XXX" and/or "OVERLAY_XXX").
1260 * The test is to be terminated using a call to
1261 * "GNUNET_SCHEDULER_shutdown". If starting the test fails,
1262 * the program is stopped without 'master' ever being run.
1264 * NOTE: this function should be called from 'main', NOT from
1265 * within a GNUNET_SCHEDULER-loop. This function will initialze
1266 * the scheduler loop, the testbed and then pass control to
1269 * @param testname name of the testcase (to configure logging, etc.)
1270 * @param cfg_filename configuration filename to use
1271 * (for testbed, controller and peers)
1272 * @param num_peers number of peers to start; should be greter than 0
1273 * @param event_mask bit mask with set of events to call 'cc' for;
1274 * or-ed values of "1LL" shifted by the
1275 * respective 'enum GNUNET_TESTBED_EventType'
1276 * (i.e. "(1LL << GNUNET_TESTBED_ET_CONNECT) || ...")
1277 * @param cc controller callback to invoke on events; This callback is called
1278 * for all peer start events even if GNUNET_TESTBED_ET_PEER_START isn't
1279 * set in the event_mask as this is the only way get access to the
1280 * handle of each peer
1281 * @param cc_cls closure for cc
1282 * @param test_master task to run once the test is ready
1283 * @param test_master_cls closure for 'task'.
1286 GNUNET_TESTBED_test_run (const char *testname,
1287 const char *cfg_filename,
1288 unsigned int num_peers,
1289 uint64_t event_mask,
1290 GNUNET_TESTBED_ControllerCallback cc,
1292 GNUNET_TESTBED_TestMaster test_master,
1293 void *test_master_cls);
1296 #if 0 /* keep Emacsens' auto-indent happy */