2 This file is part of GNUnet
3 (C) 2012 Christian Grothoff (and other contributing authors)
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6 it under the terms of the GNU General Public License as published
7 by the Free Software Foundation; either version 3, or (at your
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 General Public License for more details.
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22 * @file testbed/testbed_api.h
23 * @brief Interface for functions internally exported from testbed_api.c
24 * @author Sree Harsha Totakura
30 #include "gnunet_testbed_service.h"
32 #include "testbed_helper.h"
35 * Testbed Helper binary name
37 #define HELPER_TESTBED_BINARY "gnunet-helper-testbed"
41 * Enumeration of operations
46 * Peer create operation
51 * Peer start operation
61 * Peer destroy operation
66 * Get peer information operation
71 * Overlay connection operation
81 * Link controllers operation
86 * Get slave config operation
93 * The message queue for sending messages to the controller service
99 * Enumeration of states of OperationContext
101 enum OperationContextState
104 * The initial state where the associated operation has just been created
105 * and is waiting in the operation queues to be started
110 * The operation has been started. It may occupy some resources which are to
111 * be freed if cancelled.
116 * The operation has finished. The end results of this operation may occupy
117 * some resources which are to be freed by operation_done
124 * Context information for GNUNET_TESTBED_Operation
126 struct OperationContext
131 struct OperationContext *next;
136 struct OperationContext *prev;
139 * The controller to which this operation context belongs to
141 struct GNUNET_TESTBED_Controller *c;
146 struct GNUNET_TESTBED_Operation *op;
149 * The operation closure
154 * Data relevant to the operation
159 * The id of the opearation
164 * The type of operation
166 enum OperationType type;
169 * The state of the operation
171 enum OperationContextState state;
176 * Handle to interact with a GNUnet testbed controller. Each
177 * controller has at least one master handle which is created when the
178 * controller is created; this master handle interacts with the
179 * controller process, destroying it destroys the controller (by
180 * closing stdin of the controller process). Additionally,
181 * controllers can interact with each other (in a P2P fashion); those
182 * links are established via TCP/IP on the controller's service port.
184 struct GNUNET_TESTBED_Controller
187 * The host where the controller is running
189 struct GNUNET_TESTBED_Host *host;
192 * The controller callback
194 GNUNET_TESTBED_ControllerCallback cc;
197 * The closure for controller callback
202 * The configuration to use while connecting to controller
204 struct GNUNET_CONFIGURATION_Handle *cfg;
207 * The client connection handle to the controller service
209 struct GNUNET_CLIENT_Connection *client;
212 * The head of the message queue
214 struct MessageQueue *mq_head;
217 * The tail of the message queue
219 struct MessageQueue *mq_tail;
222 * The client transmit handle
224 struct GNUNET_CLIENT_TransmitHandle *th;
227 * The host registration handle; NULL if no current registration requests are
230 struct GNUNET_TESTBED_HostRegistrationHandle *rh;
233 * The head of the opeartion context queue
235 struct OperationContext *ocq_head;
238 * The tail of the operation context queue
240 struct OperationContext *ocq_tail;
243 * Operation queue for simultaneous operations
245 struct OperationQueue *opq_parallel_operations;
248 * Operation queue for simultaneous service connections
250 struct OperationQueue *opq_parallel_service_connections;
253 * Operation queue for simultaneous topology configuration operations
255 struct OperationQueue *opq_parallel_topology_config_operations;
258 * The controller event mask
263 * Did we start the receive loop yet?
268 * Did we create the host for this?
273 * The operation id counter. use current value and increment
275 uint32_t operation_counter;
281 * Queues a message in send queue for sending to the service
283 * @param controller the handle to the controller
284 * @param msg the message to queue
287 GNUNET_TESTBED_queue_message_ (struct GNUNET_TESTBED_Controller *controller,
288 struct GNUNET_MessageHeader *msg);
292 * Compresses given configuration using zlib compress
294 * @param config the serialized configuration
295 * @param size the size of config
296 * @param xconfig will be set to the compressed configuration (memory is fresly
298 * @return the size of the xconfig
301 GNUNET_TESTBED_compress_config_ (const char *config, size_t size,
306 * Function to serialize and compress using zlib a configuration through a
307 * configuration handle
309 * @param cfg the configuration
310 * @param size the size of configuration when serialize. Will be set on success.
311 * @param xsize the sizeo of the compressed configuration. Will be set on success.
312 * @return the serialized and compressed configuration
315 GNUNET_TESTBED_compress_cfg_ (const struct GNUNET_CONFIGURATION_Handle *cfg,
316 size_t *size, size_t *xsize);
320 * Adds an operation to the queue of operations
322 * @param op the operation to add
325 GNUNET_TESTBED_operation_add_ (struct GNUNET_TESTBED_Operation *op);
329 * Creates a helper initialization message. This function is here because we
330 * want to use this in testing
332 * @param trusted_ip the ip address of the controller which will be set as TRUSTED
333 * HOST(all connections form this ip are permitted by the testbed) when
334 * starting testbed controller at host. This can either be a single ip
335 * address or a network address in CIDR notation.
336 * @param hostname the hostname of the destination this message is intended for
337 * @param cfg the configuration that has to used to start the testbed service
339 * @return the initialization message
341 struct GNUNET_TESTBED_HelperInit *
342 GNUNET_TESTBED_create_helper_init_msg_ (const char *cname, const char *hostname,
343 const struct GNUNET_CONFIGURATION_Handle
348 * Sends the given message as an operation. The given callback is called when a
349 * reply for the operation is available. Call
350 * GNUNET_TESTBED_forward_operation_msg_cancel_() to cleanup the returned
351 * operation context if the cc hasn't been called
353 * @param controller the controller to which the message has to be sent
354 * @param operation_id the operation id of the message
355 * @param msg the message to send
356 * @param cc the callback to call when reply is available
357 * @param cc_cls the closure for the above callback
358 * @return the operation context which can be used to cancel the forwarded
361 struct OperationContext *
362 GNUNET_TESTBED_forward_operation_msg_ (struct GNUNET_TESTBED_Controller
363 *controller, uint64_t operation_id,
364 const struct GNUNET_MessageHeader *msg,
365 GNUNET_CLIENT_MessageHandler cc,
369 * Function to cancel an operation created by simply forwarding an operation
372 * @param opc the operation context from GNUNET_TESTBED_forward_operation_msg_()
375 GNUNET_TESTBED_forward_operation_msg_cancel_ (struct OperationContext *opc);
379 * Generates configuration by uncompressing configuration in given message. The
380 * given message should be of the following types:
381 * GNUNET_MESSAGE_TYPE_TESTBED_PEERCONFIG,
382 * GNUNET_MESSAGE_TYPE_TESTBED_SLAVECONFIG
384 * @param msg the message containing compressed configuration
385 * @return handle to the parsed configuration
387 struct GNUNET_CONFIGURATION_Handle *
388 GNUNET_TESTBED_extract_config_ (const struct GNUNET_MessageHeader *msg);
392 * Checks the integrity of the OpeationFailureEventMessage and if good returns
393 * the error message it contains.
395 * @param msg the OperationFailureEventMessage
396 * @return the error message
399 GNUNET_TESTBED_parse_error_string_ (const struct
400 GNUNET_TESTBED_OperationFailureEventMessage
405 * Function to return the operation id for a controller. The operation id is
406 * created from the controllers host id and its internal operation counter.
408 * @param controller the handle to the controller whose operation id has to be incremented
409 * @return the incremented operation id.
412 GNUNET_TESTBED_get_next_op_id (struct GNUNET_TESTBED_Controller *controller);
416 * Like GNUNET_TESTBED_get_slave_config(), however without the host registration
417 * check. Another difference is that this function takes the id of the slave
420 * @param op_cls the closure for the operation
421 * @param master the handle to master controller
422 * @param slave_host_id id of the host where the slave controller is running to
423 * the slave_host should remain valid until this operation is cancelled
424 * or marked as finished
425 * @return the operation handle;
427 struct GNUNET_TESTBED_Operation *
428 GNUNET_TESTBED_get_slave_config_ (void *op_cls,
429 struct GNUNET_TESTBED_Controller *master,
430 uint32_t slave_host_id);
434 * Same as the GNUNET_TESTBED_controller_link_2, but with ids for delegated host
437 * @param op_cls the operation closure for the event which is generated to
438 * signal success or failure of this operation
439 * @param master handle to the master controller who creates the association
440 * @param delegated_host_id id of the host to which requests should be delegated
441 * @param slave_host_id id of the host which is used to run the slave controller
442 * @param sxcfg serialized and compressed configuration
443 * @param sxcfg_size the size sxcfg
444 * @param scfg_size the size of uncompressed serialized configuration
445 * @param is_subordinate GNUNET_YES if the controller at delegated_host should
446 * be started by the slave controller; GNUNET_NO if the slave
447 * controller has to connect to the already started delegated
448 * controller via TCP/IP
449 * @return the operation handle
451 struct GNUNET_TESTBED_Operation *
452 GNUNET_TESTBED_controller_link_2_ (void *op_cls,
453 struct GNUNET_TESTBED_Controller *master,
454 uint32_t delegated_host_id,
455 uint32_t slave_host_id, const char *sxcfg,
456 size_t sxcfg_size, size_t scfg_size,
461 * Same as the GNUNET_TESTBED_controller_link, but with ids for delegated host
464 * @param op_cls the operation closure for the event which is generated to
465 * signal success or failure of this operation
466 * @param master handle to the master controller who creates the association
467 * @param delegated_host_id id of the host to which requests should be
468 * delegated; cannot be NULL
469 * @param slave_host_id id of the host which should connect to controller
470 * running on delegated host ; use NULL to make the master controller
471 * connect to the delegated host
472 * @param slave_cfg configuration to use for the slave controller
473 * @param is_subordinate GNUNET_YES if the controller at delegated_host should
474 * be started by the slave controller; GNUNET_NO if the slave
475 * controller has to connect to the already started delegated
476 * controller via TCP/IP
477 * @return the operation handle
479 struct GNUNET_TESTBED_Operation *
480 GNUNET_TESTBED_controller_link_ (void *op_cls,
481 struct GNUNET_TESTBED_Controller *master,
482 uint32_t delegated_host_id,
483 uint32_t slave_host_id,
484 const struct GNUNET_CONFIGURATION_Handle
485 *slave_cfg, int is_subordinate);
491 /* end of testbed_api.h */