2 This file is part of GNUnet
3 (C) 2008--2012 Christian Grothoff (and other contributing authors)
5 GNUnet is free software; you can redistribute it and/or modify
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
8 option) any later version.
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11 WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with GNUnet; see the file COPYING. If not, write to the
17 Free Software Foundation, Inc., 59 Temple Place - Suite 330,
18 Boston, MA 02111-1307, USA.
22 * @file testbed/testbed_api.c
23 * @brief API for accessing the GNUnet testing service.
24 * This library is supposed to make it easier to write
25 * testcases and script large-scale benchmarks.
26 * @author Christian Grothoff
27 * @author Sree Harsha Totakura
32 #include "gnunet_testbed_service.h"
33 #include "gnunet_core_service.h"
34 #include "gnunet_constants.h"
35 #include "gnunet_transport_service.h"
36 #include "gnunet_hello_lib.h"
40 #include "testbed_api.h"
41 #include "testbed_api_hosts.h"
42 #include "testbed_api_peers.h"
43 #include "testbed_api_operations.h"
46 * Generic logging shorthand
48 #define LOG(kind, ...) \
49 GNUNET_log_from (kind, "testbed-api", __VA_ARGS__);
54 #define LOG_DEBUG(...) \
55 LOG (GNUNET_ERROR_TYPE_DEBUG, __VA_ARGS__);
58 * Relative time seconds shorthand
60 #define TIME_REL_SECS(sec) \
61 GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, sec)
65 * Default server message sending retry timeout
67 #define TIMEOUT_REL TIME_REL_SECS(1)
71 * The message queue for sending messages to the controller service
76 * The message to be sent
78 struct GNUNET_MessageHeader *msg;
81 * next pointer for DLL
83 struct MessageQueue *next;
86 * prev pointer for DLL
88 struct MessageQueue *prev;
93 * Structure for a controller link
98 * The next ptr for DLL
100 struct ControllerLink *next;
103 * The prev ptr for DLL
105 struct ControllerLink *prev;
108 * The host which will be referred in the peer start request. This is the
109 * host where the peer should be started
111 struct GNUNET_TESTBED_Host *delegated_host;
114 * The host which will contacted to delegate the peer start request
116 struct GNUNET_TESTBED_Host *slave_host;
119 * The configuration to be used to connect to slave host
121 const struct GNUNET_CONFIGURATION_Handle *slave_cfg;
124 * GNUNET_YES if the slave should be started (and stopped) by us; GNUNET_NO
125 * if we are just allowed to use the slave via TCP/IP
132 * handle for host registration
134 struct GNUNET_TESTBED_HostRegistrationHandle
137 * The host being registered
139 struct GNUNET_TESTBED_Host *host;
142 * The controller at which this host is being registered
144 struct GNUNET_TESTBED_Controller *c;
147 * The Registartion completion callback
149 GNUNET_TESTBED_HostRegistrationCompletion cc;
152 * The closure for above callback
159 * Context data for forwarded Operation
161 struct ForwardedOperationData
165 * The callback to call when reply is available
167 GNUNET_CLIENT_MessageHandler cc;
170 * The closure for the above callback
178 * Returns the operation context with the given id if found in the Operation
179 * context queues of the controller
181 * @param c the controller whose queues are searched
182 * @param id the id which has to be checked
183 * @return the matching operation context; NULL if no match found
185 static struct OperationContext *
186 find_opc (const struct GNUNET_TESTBED_Controller *c, const uint64_t id)
188 struct OperationContext *opc;
190 for (opc = c->ocq_head; NULL != opc; opc = opc->next)
200 * Handler for GNUNET_MESSAGE_TYPE_TESTBED_ADDHOSTCONFIRM message from
201 * controller (testbed service)
203 * @param c the controller handler
204 * @param msg message received
205 * @return GNUNET_YES if we can continue receiving from service; GNUNET_NO if
209 handle_addhostconfirm (struct GNUNET_TESTBED_Controller *c,
210 const struct GNUNET_TESTBED_HostConfirmedMessage *msg)
212 struct GNUNET_TESTBED_HostRegistrationHandle *rh;
221 if (GNUNET_TESTBED_host_get_id_ (rh->host) != ntohl (msg->host_id))
223 LOG_DEBUG ("Mismatch in host id's %u, %u of host confirm msg\n",
224 GNUNET_TESTBED_host_get_id_ (rh->host), ntohl (msg->host_id));
228 msg_size = ntohs (msg->header.size);
229 if (sizeof (struct GNUNET_TESTBED_HostConfirmedMessage) == msg_size)
231 LOG_DEBUG ("Host %u successfully registered\n", ntohl (msg->host_id));
232 GNUNET_TESTBED_mark_host_registered_at_ (rh->host, c);
233 rh->cc (rh->cc_cls, NULL);
237 /* We have an error message */
238 emsg = (char *) &msg[1];
239 if ('\0' != emsg[msg_size -
240 sizeof (struct GNUNET_TESTBED_HostConfirmedMessage)])
246 LOG (GNUNET_ERROR_TYPE_ERROR, _("Adding host %u failed with error: %s\n"),
247 ntohl (msg->host_id), emsg);
248 rh->cc (rh->cc_cls, emsg);
255 * Handler for GNUNET_MESSAGE_TYPE_TESTBED_ADDHOSTCONFIRM message from
256 * controller (testbed service)
258 * @param c the controller handler
259 * @param msg message received
260 * @return GNUNET_YES if we can continue receiving from service; GNUNET_NO if
264 handle_opsuccess (struct GNUNET_TESTBED_Controller *c,
266 GNUNET_TESTBED_GenericOperationSuccessEventMessage *msg)
268 struct OperationContext *opc;
269 struct GNUNET_TESTBED_EventInformation *event;
272 op_id = GNUNET_ntohll (msg->operation_id);
273 LOG_DEBUG ("Operation %ul successful\n", op_id);
274 if (NULL == (opc = find_opc (c, op_id)))
276 LOG_DEBUG ("Operation not found\n");
280 if (0 != (c->event_mask & (1L << GNUNET_TESTBED_ET_OPERATION_FINISHED)))
281 event = GNUNET_malloc (sizeof (struct GNUNET_TESTBED_EventInformation));
283 event->type = GNUNET_TESTBED_ET_OPERATION_FINISHED;
288 struct ForwardedOperationData *fo_data;
291 if (NULL != fo_data->cc)
292 fo_data->cc (fo_data->cc_cls, (const struct GNUNET_MessageHeader *) msg);
293 GNUNET_CONTAINER_DLL_remove (c->ocq_head, c->ocq_tail, opc);
294 GNUNET_free (fo_data);
299 case OP_PEER_DESTROY:
301 struct GNUNET_TESTBED_Peer *peer;
308 case OP_LINK_CONTROLLERS:
315 event->details.operation_finished.operation = opc->op;
316 event->details.operation_finished.op_cls = NULL;
317 event->details.operation_finished.emsg = NULL;
318 event->details.operation_finished.pit = GNUNET_TESTBED_PIT_GENERIC;
319 event->details.operation_finished.op_result.generic = NULL;
321 GNUNET_CONTAINER_DLL_remove (opc->c->ocq_head, opc->c->ocq_tail, opc);
322 opc->state = OPC_STATE_FINISHED;
326 c->cc (c->cc_cls, event);
334 * Handler for GNUNET_MESSAGE_TYPE_TESTBED_PEERCREATESUCCESS message from
335 * controller (testbed service)
337 * @param c the controller handler
338 * @param msg message received
339 * @return GNUNET_YES if we can continue receiving from service; GNUNET_NO if
343 handle_peer_create_success (struct GNUNET_TESTBED_Controller *c,
345 GNUNET_TESTBED_PeerCreateSuccessEventMessage *msg)
347 struct OperationContext *opc;
348 struct PeerCreateData *data;
349 struct GNUNET_TESTBED_Peer *peer;
350 GNUNET_TESTBED_PeerCreateCallback cb;
354 GNUNET_assert (sizeof (struct GNUNET_TESTBED_PeerCreateSuccessEventMessage)
355 == ntohs (msg->header.size));
356 op_id = GNUNET_ntohll (msg->operation_id);
357 if (NULL == (opc = find_opc (c, op_id)))
359 LOG_DEBUG ("Operation context for PeerCreateSuccessEvent not found\n");
362 if (OP_FORWARDED == opc->type)
364 struct ForwardedOperationData *fo_data;
367 if (NULL != fo_data->cc)
368 fo_data->cc (fo_data->cc_cls, (const struct GNUNET_MessageHeader *) msg);
369 GNUNET_CONTAINER_DLL_remove (c->ocq_head, c->ocq_tail, opc);
370 GNUNET_free (fo_data);
374 GNUNET_assert (OP_PEER_CREATE == opc->type);
375 GNUNET_assert (NULL != opc->data);
377 GNUNET_assert (NULL != data->peer);
379 GNUNET_assert (peer->unique_id == ntohl (msg->peer_id));
380 peer->state = PS_CREATED;
383 GNUNET_free (opc->data);
384 GNUNET_CONTAINER_DLL_remove (opc->c->ocq_head, opc->c->ocq_tail, opc);
385 opc->state = OPC_STATE_FINISHED;
387 cb (cls, peer, NULL);
393 * Handler for GNUNET_MESSAGE_TYPE_TESTBED_PEEREVENT message from
394 * controller (testbed service)
396 * @param c the controller handler
397 * @param msg message received
398 * @return GNUNET_YES if we can continue receiving from service; GNUNET_NO if
402 handle_peer_event (struct GNUNET_TESTBED_Controller *c,
403 const struct GNUNET_TESTBED_PeerEventMessage *msg)
405 struct OperationContext *opc;
406 struct GNUNET_TESTBED_Peer *peer;
407 struct GNUNET_TESTBED_EventInformation event;
410 GNUNET_assert (sizeof (struct GNUNET_TESTBED_PeerEventMessage)
411 == ntohs (msg->header.size));
412 op_id = GNUNET_ntohll (msg->operation_id);
413 if (NULL == (opc = find_opc (c, op_id)))
415 LOG_DEBUG ("Operation not found\n");
418 if (OP_FORWARDED == opc->type)
420 struct ForwardedOperationData *fo_data;
423 if (NULL != fo_data->cc)
424 fo_data->cc (fo_data->cc_cls, (const struct GNUNET_MessageHeader *) msg);
425 GNUNET_CONTAINER_DLL_remove (c->ocq_head, c->ocq_tail, opc);
426 GNUNET_free (fo_data);
430 GNUNET_assert ((OP_PEER_START == opc->type) || (OP_PEER_STOP == opc->type));
432 GNUNET_assert (NULL != peer);
433 event.type = (enum GNUNET_TESTBED_EventType) ntohl (msg->event_type);
436 case GNUNET_TESTBED_ET_PEER_START:
437 peer->state = PS_STARTED;
438 event.details.peer_start.host = peer->host;
439 event.details.peer_start.peer = peer;
441 case GNUNET_TESTBED_ET_PEER_STOP:
442 peer->state = PS_STOPPED;
443 event.details.peer_stop.peer = peer;
446 GNUNET_assert (0); /* We should never reach this state */
448 GNUNET_CONTAINER_DLL_remove (opc->c->ocq_head, opc->c->ocq_tail, opc);
449 opc->state = OPC_STATE_FINISHED;
450 if (0 != ((GNUNET_TESTBED_ET_PEER_START | GNUNET_TESTBED_ET_PEER_STOP)
454 c->cc (c->cc_cls, &event);
461 * Handler for GNUNET_MESSAGE_TYPE_TESTBED_PEERCONEVENT message from
462 * controller (testbed service)
464 * @param c the controller handler
465 * @param msg message received
466 * @return GNUNET_YES if we can continue receiving from service; GNUNET_NO if
470 handle_peer_conevent (struct GNUNET_TESTBED_Controller *c,
471 const struct GNUNET_TESTBED_ConnectionEventMessage *msg)
473 struct OperationContext *opc;
474 struct OverlayConnectData *data;
475 struct GNUNET_TESTBED_EventInformation event;
478 op_id = GNUNET_ntohll (msg->operation_id);
479 if (NULL == (opc = find_opc (c, op_id)))
481 LOG_DEBUG ("Operation not found\n");
485 GNUNET_assert (NULL != data);
486 GNUNET_assert ((ntohl (msg->peer1) == data->p1->unique_id)
487 && (ntohl (msg->peer2) == data->p2->unique_id));
488 event.type = (enum GNUNET_TESTBED_EventType) ntohl (msg->event_type);
491 case GNUNET_TESTBED_ET_CONNECT:
492 event.details.peer_connect.peer1 = data->p1;
493 event.details.peer_connect.peer2 = data->p2;
495 case GNUNET_TESTBED_ET_DISCONNECT:
496 GNUNET_assert (0); /* FIXME: implement */
499 GNUNET_assert (0); /* Should never reach here */
502 GNUNET_CONTAINER_DLL_remove (opc->c->ocq_head, opc->c->ocq_tail, opc);
503 opc->state = OPC_STATE_FINISHED;
505 if (0 != ((GNUNET_TESTBED_ET_CONNECT | GNUNET_TESTBED_ET_DISCONNECT)
509 c->cc (c->cc_cls, &event);
516 * Handler for GNUNET_MESSAGE_TYPE_TESTBED_PEERCONFIG message from
517 * controller (testbed service)
519 * @param c the controller handler
520 * @param msg message received
521 * @return GNUNET_YES if we can continue receiving from service; GNUNET_NO if
525 handle_peer_config (struct GNUNET_TESTBED_Controller *c,
526 const struct GNUNET_TESTBED_PeerConfigurationInformationMessage *msg)
528 struct OperationContext *opc;
529 struct GNUNET_TESTBED_Peer *peer;
530 struct PeerInfoData *data;
531 struct PeerInfoData2 *response_data;
532 struct GNUNET_TESTBED_EventInformation info;
535 op_id = GNUNET_ntohll (msg->operation_id);
536 if (NULL == (opc = find_opc (c, op_id)))
538 LOG_DEBUG ("Operation not found\n");
542 GNUNET_assert (NULL != data);
544 GNUNET_assert (NULL != peer);
545 GNUNET_assert (ntohl (msg->peer_id) == peer->unique_id);
546 if (0 == (c->event_mask & (1L << GNUNET_TESTBED_ET_OPERATION_FINISHED)))
548 LOG_DEBUG ("Skipping operation callback as flag not set\n");
551 response_data = GNUNET_malloc (sizeof (struct PeerInfoData2));
552 response_data->pit = data->pit;
555 info.type = GNUNET_TESTBED_ET_OPERATION_FINISHED;
556 info.details.operation_finished.operation = opc->op;
557 info.details.operation_finished.op_cls = NULL;
558 info.details.operation_finished.emsg = NULL;
559 info.details.operation_finished.pit = response_data->pit;
560 switch (response_data->pit)
562 case GNUNET_TESTBED_PIT_IDENTITY:
564 struct GNUNET_PeerIdentity *peer_identity;
566 peer_identity = GNUNET_malloc (sizeof (struct GNUNET_PeerIdentity));
567 (void) memcpy (peer_identity, &msg->peer_identity,
568 sizeof (struct GNUNET_PeerIdentity));
569 response_data->details.peer_identity = peer_identity;
570 info.details.operation_finished.op_result.pid = peer_identity;
573 case GNUNET_TESTBED_PIT_CONFIGURATION:
575 struct GNUNET_CONFIGURATION_Handle *cfg;
581 config_size = (uLong) ntohs (msg->config_size);
582 config = GNUNET_malloc (config_size);
583 msize = ntohs (msg->header.size);
584 msize -= sizeof (struct GNUNET_TESTBED_PeerConfigurationInformationMessage);
585 if (Z_OK != (ret = uncompress ((Bytef *) config, &config_size,
586 (const Bytef *) &msg[1], (uLong) msize)))
588 cfg = GNUNET_CONFIGURATION_create (); /* Freed in oprelease_peer_getinfo */
589 GNUNET_assert (GNUNET_OK ==
590 GNUNET_CONFIGURATION_deserialize (cfg, config,
591 (size_t) config_size,
593 GNUNET_free (config);
594 response_data->details.cfg = cfg;
595 info.details.operation_finished.op_result.cfg = cfg;
598 case GNUNET_TESTBED_PIT_GENERIC:
599 GNUNET_assert (0); /* never reach here */
602 opc->data = response_data;
603 GNUNET_CONTAINER_DLL_remove (opc->c->ocq_head, opc->c->ocq_tail, opc);
604 opc->state = OPC_STATE_FINISHED;
605 c->cc (c->cc_cls, &info);
611 * Handler for messages from controller (testbed service)
613 * @param cls the controller handler
614 * @param msg message received, NULL on timeout or fatal error
617 message_handler (void *cls, const struct GNUNET_MessageHeader *msg)
619 struct GNUNET_TESTBED_Controller *c = cls;
623 c->in_receive = GNUNET_NO;
624 /* FIXME: Add checks for message integrity */
627 LOG_DEBUG ("Receive timed out or connection to service dropped\n");
631 msize = ntohs (msg->size);
632 switch (ntohs (msg->type))
634 case GNUNET_MESSAGE_TYPE_TESTBED_ADDHOSTCONFIRM:
635 GNUNET_assert (msize >= sizeof (struct
636 GNUNET_TESTBED_HostConfirmedMessage));
638 handle_addhostconfirm (c, (const struct GNUNET_TESTBED_HostConfirmedMessage *) msg);
640 case GNUNET_MESSAGE_TYPE_TESTBED_GENERICOPSUCCESS:
642 (msize == sizeof (struct GNUNET_TESTBED_GenericOperationSuccessEventMessage));
644 handle_opsuccess (c, (const struct
645 GNUNET_TESTBED_GenericOperationSuccessEventMessage
648 case GNUNET_MESSAGE_TYPE_TESTBED_PEERCREATESUCCESS:
649 GNUNET_assert (msize ==
650 sizeof (struct GNUNET_TESTBED_PeerCreateSuccessEventMessage));
652 handle_peer_create_success
653 (c, (const struct GNUNET_TESTBED_PeerCreateSuccessEventMessage *)msg);
655 case GNUNET_MESSAGE_TYPE_TESTBED_PEEREVENT:
656 GNUNET_assert (msize == sizeof (struct GNUNET_TESTBED_PeerEventMessage));
658 handle_peer_event (c, (const struct GNUNET_TESTBED_PeerEventMessage *) msg);
661 case GNUNET_MESSAGE_TYPE_TESTBED_PEERCONFIG:
662 GNUNET_assert (msize >=
663 sizeof (struct GNUNET_TESTBED_PeerConfigurationInformationMessage));
666 (c, (const struct GNUNET_TESTBED_PeerConfigurationInformationMessage *)
669 case GNUNET_MESSAGE_TYPE_TESTBED_PEERCONEVENT:
670 GNUNET_assert (msize ==
671 sizeof (struct GNUNET_TESTBED_ConnectionEventMessage));
673 handle_peer_conevent (c, (const struct
674 GNUNET_TESTBED_ConnectionEventMessage *) msg);
679 if ((GNUNET_OK == status) && (GNUNET_NO == c->in_receive))
681 c->in_receive = GNUNET_YES;
682 GNUNET_CLIENT_receive (c->client, &message_handler, c,
683 GNUNET_TIME_UNIT_FOREVER_REL);
689 * Function called to notify a client about the connection begin ready to queue
690 * more data. "buf" will be NULL and "size" zero if the connection was closed
691 * for writing in the meantime.
694 * @param size number of bytes available in buf
695 * @param buf where the callee should write the message
696 * @return number of bytes written to buf
699 transmit_ready_notify (void *cls, size_t size, void *buf)
701 struct GNUNET_TESTBED_Controller *c = cls;
702 struct MessageQueue *mq_entry;
705 mq_entry = c->mq_head;
706 GNUNET_assert (NULL != mq_entry);
707 if ((0 == size) && (NULL == buf)) /* Timeout */
709 LOG_DEBUG ("Message sending timed out -- retrying\n");
711 GNUNET_CLIENT_notify_transmit_ready (c->client,
712 ntohs (mq_entry->msg->size),
714 GNUNET_YES, &transmit_ready_notify,
718 GNUNET_assert (ntohs (mq_entry->msg->size) <= size);
719 size = ntohs (mq_entry->msg->size);
720 memcpy (buf, mq_entry->msg, size);
721 LOG_DEBUG ("Message of type: %u and size: %u sent\n",
722 ntohs (mq_entry->msg->type), size);
723 GNUNET_free (mq_entry->msg);
724 GNUNET_CONTAINER_DLL_remove (c->mq_head, c->mq_tail, mq_entry);
725 GNUNET_free (mq_entry);
726 mq_entry = c->mq_head;
727 if (NULL != mq_entry)
729 GNUNET_CLIENT_notify_transmit_ready (c->client,
730 ntohs (mq_entry->msg->size),
732 GNUNET_YES, &transmit_ready_notify,
734 if (GNUNET_NO == c->in_receive)
736 c->in_receive = GNUNET_YES;
737 GNUNET_CLIENT_receive (c->client, &message_handler, c,
738 GNUNET_TIME_UNIT_FOREVER_REL);
745 * Queues a message in send queue for sending to the service
747 * @param controller the handle to the controller
748 * @param msg the message to queue
751 GNUNET_TESTBED_queue_message_ (struct GNUNET_TESTBED_Controller *controller,
752 struct GNUNET_MessageHeader *msg)
754 struct MessageQueue *mq_entry;
758 type = ntohs (msg->type);
759 size = ntohs (msg->size);
760 GNUNET_assert ((GNUNET_MESSAGE_TYPE_TESTBED_INIT <= type) &&
761 (GNUNET_MESSAGE_TYPE_TESTBED_MAX > type));
762 mq_entry = GNUNET_malloc (sizeof (struct MessageQueue));
764 LOG (GNUNET_ERROR_TYPE_DEBUG,
765 "Queueing message of type %u, size %u for sending\n", type,
767 GNUNET_CONTAINER_DLL_insert_tail (controller->mq_head, controller->mq_tail,
769 if (NULL == controller->th)
771 GNUNET_CLIENT_notify_transmit_ready (controller->client, size,
773 GNUNET_YES, &transmit_ready_notify,
779 * Sends the given message as an operation. The given callback is called when a
780 * reply for the operation is available. Call
781 * GNUNET_TESTBED_forward_operation_msg_cancel_() to cleanup the returned
782 * operation context if the cc hasn't been called
784 * @param controller the controller to which the message has to be sent
785 * @param operation_id the operation id of the message
786 * @param msg the message to send
787 * @param cc the callback to call when reply is available
788 * @param cc_cls the closure for the above callback
789 * @return the operation context which can be used to cancel the forwarded
792 struct OperationContext *
793 GNUNET_TESTBED_forward_operation_msg_ (struct GNUNET_TESTBED_Controller
795 uint64_t operation_id,
796 const struct GNUNET_MessageHeader *msg,
797 GNUNET_CLIENT_MessageHandler cc,
800 struct OperationContext *opc;
801 struct ForwardedOperationData *data;
802 struct GNUNET_MessageHeader *dup_msg;
805 data = GNUNET_malloc (sizeof (struct ForwardedOperationData));
807 data->cc_cls = cc_cls;
808 opc = GNUNET_malloc (sizeof (struct OperationContext));
810 opc->type = OP_FORWARDED;
812 opc->id = operation_id;
813 msize = ntohs (msg->size);
814 dup_msg = GNUNET_malloc (msize);
815 (void) memcpy (dup_msg, msg, msize);
816 GNUNET_TESTBED_queue_message_ (opc->c, dup_msg);
817 GNUNET_CONTAINER_DLL_insert_tail (controller->ocq_head,
818 controller->ocq_tail, opc);
824 * Function to cancel an operation created by simply forwarding an operation
827 * @param opc the operation context from GNUNET_TESTBED_forward_operation_msg_()
830 GNUNET_TESTBED_forward_operation_msg_cancel_ (struct OperationContext *opc)
832 GNUNET_CONTAINER_DLL_remove (opc->c->ocq_head, opc->c->ocq_tail, opc);
833 GNUNET_free (opc->data);
839 * Handle for controller process
841 struct GNUNET_TESTBED_ControllerProc
846 struct GNUNET_HELPER_Handle *helper;
849 * The host where the helper is run
851 struct GNUNET_TESTBED_Host *host;
854 * The controller error callback
856 GNUNET_TESTBED_ControllerStatusCallback cb;
859 * The closure for the above callback
864 * The send handle for the helper
866 struct GNUNET_HELPER_SendHandle *shandle;
869 * The message corresponding to send handle
871 struct GNUNET_MessageHeader *msg;
874 * The port number for ssh; used for helpers starting ssh
879 * The ssh destination string; used for helpers starting ssh
884 * The configuration of the running testbed service
886 struct GNUNET_CONFIGURATION_Handle *cfg;
892 * Functions with this signature are called whenever a
893 * complete message is received by the tokenizer.
895 * Do not call GNUNET_SERVER_mst_destroy in callback
898 * @param client identification of the client
899 * @param message the actual message
901 * @return GNUNET_OK on success, GNUNET_SYSERR to stop further processing
904 helper_mst (void *cls, void *client,
905 const struct GNUNET_MessageHeader *message)
907 struct GNUNET_TESTBED_ControllerProc *cp = cls;
908 const struct GNUNET_TESTBED_HelperReply *msg;
909 const char *hostname;
914 msg = (const struct GNUNET_TESTBED_HelperReply *) message;
915 GNUNET_assert (sizeof (struct GNUNET_TESTBED_HelperReply)
916 < ntohs (msg->header.size));
917 GNUNET_assert (GNUNET_MESSAGE_TYPE_TESTBED_HELPER_REPLY
918 == ntohs (msg->header.type));
919 config_size = (uLongf) ntohs (msg->config_size);
920 xconfig_size = (uLongf) (ntohs (msg->header.size)
921 - sizeof (struct GNUNET_TESTBED_HelperReply));
922 config = GNUNET_malloc (config_size);
923 GNUNET_assert (Z_OK == uncompress ((Bytef *) config, &config_size,
924 (const Bytef *) &msg[1], xconfig_size));
925 GNUNET_assert (NULL == cp->cfg);
926 cp->cfg = GNUNET_CONFIGURATION_create ();
927 GNUNET_assert (GNUNET_CONFIGURATION_deserialize (cp->cfg, config,
928 config_size, GNUNET_NO));
929 GNUNET_free (config);
930 if ((NULL == cp->host) ||
931 (NULL == (hostname = GNUNET_TESTBED_host_get_hostname_ (cp->host))))
932 hostname = "localhost";
933 /* Change the hostname so that we can connect to it */
934 GNUNET_CONFIGURATION_set_value_string (cp->cfg, "testbed", "hostname",
936 cp->cb (cp->cls, cp->cfg, GNUNET_OK);
942 * Continuation function from GNUNET_HELPER_send()
945 * @param result GNUNET_OK on success,
946 * GNUNET_NO if helper process died
947 * GNUNET_SYSERR during GNUNET_HELPER_stop
950 clear_msg (void *cls, int result)
952 struct GNUNET_TESTBED_ControllerProc *cp = cls;
954 GNUNET_assert (NULL != cp->shandle);
956 GNUNET_free (cp->msg);
961 * Callback that will be called when the helper process dies. This is not called
962 * when the helper process is stoped using GNUNET_HELPER_stop()
964 * @param cls the closure from GNUNET_HELPER_start()
967 helper_exp_cb (void *cls)
969 struct GNUNET_TESTBED_ControllerProc *cp = cls;
970 GNUNET_TESTBED_ControllerStatusCallback cb;
976 GNUNET_TESTBED_controller_stop (cp);
978 cb (cb_cls, NULL, GNUNET_SYSERR);
983 * Function to call to start a link-controllers type operation once all queues
984 * the operation is part of declare that the operation can be activated.
986 * @param cls the closure from GNUNET_TESTBED_operation_create_()
989 opstart_link_controllers (void *cls)
991 struct OperationContext *opc = cls;
992 struct GNUNET_TESTBED_ControllerLinkMessage *msg;
994 GNUNET_assert (NULL != opc->data);
997 opc->state = OPC_STATE_STARTED;
998 GNUNET_CONTAINER_DLL_insert_tail (opc->c->ocq_head, opc->c->ocq_tail, opc);
999 GNUNET_TESTBED_queue_message_ (opc->c, &msg->header);
1004 * Callback which will be called when link-controllers type operation is released
1006 * @param cls the closure from GNUNET_TESTBED_operation_create_()
1009 oprelease_link_controllers (void *cls)
1011 struct OperationContext *opc = cls;
1013 if (OPC_STATE_INIT == opc->state)
1014 GNUNET_free (opc->data);
1015 if (OPC_STATE_STARTED == opc->state)
1016 GNUNET_CONTAINER_DLL_remove (opc->c->ocq_head, opc->c->ocq_tail, opc);
1022 * Starts a controller process at the host. FIXME: add controller start callback
1023 * with the configuration with which the controller is started
1025 * @param controller_ip the ip address of the controller. Will be set as TRUSTED
1026 * host when starting testbed controller at host
1027 * @param host the host where the controller has to be started; NULL for
1029 * @param cfg template configuration to use for the remote controller; the
1030 * remote controller will be started with a slightly modified
1031 * configuration (port numbers, unix domain sockets and service home
1032 * values are changed as per TESTING library on the remote host)
1033 * @param cb function called when the controller is successfully started or
1034 * dies unexpectedly; GNUNET_TESTBED_controller_stop shouldn't be
1035 * called if cb is called with GNUNET_SYSERR as status. Will never be
1036 * called in the same task as 'GNUNET_TESTBED_controller_start'
1037 * (synchronous errors will be signalled by returning NULL). This
1038 * parameter cannot be NULL.
1039 * @param cls closure for above callbacks
1040 * @return the controller process handle, NULL on errors
1042 struct GNUNET_TESTBED_ControllerProc *
1043 GNUNET_TESTBED_controller_start (const char *controller_ip,
1044 struct GNUNET_TESTBED_Host *host,
1045 const struct GNUNET_CONFIGURATION_Handle *cfg,
1046 GNUNET_TESTBED_ControllerStatusCallback cb,
1049 struct GNUNET_TESTBED_ControllerProc *cp;
1050 struct GNUNET_TESTBED_HelperInit *msg;
1052 cp = GNUNET_malloc (sizeof (struct GNUNET_TESTBED_ControllerProc));
1053 if ((NULL == host) || (0 == GNUNET_TESTBED_host_get_id_ (host)))
1055 char * const binary_argv[] = {
1056 "gnunet-testbed-helper", NULL
1059 cp->helper = GNUNET_HELPER_start ("gnunet-testbed-helper", binary_argv,
1060 &helper_mst, &helper_exp_cb, cp);
1064 char *remote_args[8];
1066 const char *username;
1067 const char *hostname;
1069 username = GNUNET_TESTBED_host_get_username_ (host);
1070 hostname = GNUNET_TESTBED_host_get_hostname_ (host);
1071 GNUNET_asprintf (&cp->port, "%u", GNUNET_TESTBED_host_get_ssh_port_ (host));
1072 if (NULL == username)
1073 GNUNET_asprintf (&cp->dst, "%s", hostname);
1075 GNUNET_asprintf (&cp->dst, "%s@%s", username, hostname);
1076 LOG_DEBUG ("Starting SSH to destination %s\n", cp->dst);
1078 remote_args[argp++] = "ssh";
1079 remote_args[argp++] = "-p";
1080 remote_args[argp++] = cp->port;
1081 remote_args[argp++] = "-o";
1082 remote_args[argp++] = "BatchMode=yes";
1083 remote_args[argp++] = cp->dst;
1084 remote_args[argp++] = "gnunet-testbed-helper";
1085 remote_args[argp++] = NULL;
1086 GNUNET_assert (argp == 8);
1087 cp->helper = GNUNET_HELPER_start ("ssh", remote_args,
1088 &helper_mst, &helper_exp_cb, cp);
1090 if (NULL == cp->helper)
1092 GNUNET_free_non_null (cp->port);
1093 GNUNET_free_non_null (cp->dst);
1100 msg = GNUNET_TESTBED_create_helper_init_msg_ (controller_ip, cfg);
1101 cp->msg = &msg->header;
1102 cp->shandle = GNUNET_HELPER_send (cp->helper, &msg->header, GNUNET_NO,
1104 if (NULL == cp->shandle)
1107 GNUNET_TESTBED_controller_stop (cp);
1115 * Stop the controller process (also will terminate all peers and controllers
1116 * dependent on this controller). This function blocks until the testbed has
1117 * been fully terminated (!).
1119 * @param cproc the controller process handle
1122 GNUNET_TESTBED_controller_stop (struct GNUNET_TESTBED_ControllerProc *cproc)
1124 if (NULL != cproc->shandle)
1125 GNUNET_HELPER_send_cancel (cproc->shandle);
1126 if (NULL != cproc->helper)
1127 GNUNET_HELPER_stop (cproc->helper);
1128 if (NULL != cproc->cfg)
1129 GNUNET_CONFIGURATION_destroy (cproc->cfg);
1130 GNUNET_free_non_null (cproc->port);
1131 GNUNET_free_non_null (cproc->dst);
1132 GNUNET_free (cproc);
1137 * Start a controller process using the given configuration at the
1140 * @param cfg configuration to use
1141 * @param host host to run the controller on; This should be the same host if
1142 * the controller was previously started with
1143 * GNUNET_TESTBED_controller_start; NULL for localhost
1144 * @param event_mask bit mask with set of events to call 'cc' for;
1145 * or-ed values of "1LL" shifted by the
1146 * respective 'enum GNUNET_TESTBED_EventType'
1147 * (i.e. "(1LL << GNUNET_TESTBED_ET_CONNECT) | ...")
1148 * @param cc controller callback to invoke on events
1149 * @param cc_cls closure for cc
1150 * @return handle to the controller
1152 struct GNUNET_TESTBED_Controller *
1153 GNUNET_TESTBED_controller_connect (const struct GNUNET_CONFIGURATION_Handle *cfg,
1154 struct GNUNET_TESTBED_Host *host,
1155 uint64_t event_mask,
1156 GNUNET_TESTBED_ControllerCallback cc,
1159 struct GNUNET_TESTBED_Controller *controller;
1160 struct GNUNET_TESTBED_InitMessage *msg;
1161 const char *controller_hostname;
1162 unsigned long long max_parallel_operations;
1163 unsigned long long max_parallel_service_connections;
1166 GNUNET_CONFIGURATION_get_value_number (cfg, "testbed",
1167 "MAX_PARALLEL_OPERATIONS",
1168 &max_parallel_operations))
1174 GNUNET_CONFIGURATION_get_value_number (cfg, "testbed",
1175 "MAX_PARALLEL_SERVICE_CONNECTIONS",
1176 &max_parallel_service_connections))
1181 controller = GNUNET_malloc (sizeof (struct GNUNET_TESTBED_Controller));
1182 controller->cc = cc;
1183 controller->cc_cls = cc_cls;
1184 controller->event_mask = event_mask;
1185 controller->cfg = GNUNET_CONFIGURATION_dup (cfg);
1186 controller->client = GNUNET_CLIENT_connect ("testbed", controller->cfg);
1187 if (NULL == controller->client)
1189 GNUNET_TESTBED_controller_disconnect (controller);
1194 host = GNUNET_TESTBED_host_create_by_id_ (0);
1195 if (NULL == host) /* If the above host create fails */
1197 LOG (GNUNET_ERROR_TYPE_WARNING,
1198 "Treating NULL host as localhost. Multiple references to localhost "
1199 "may break when localhost freed before calling disconnect \n");
1200 host = GNUNET_TESTBED_host_lookup_by_id_ (0);
1204 controller->aux_host = GNUNET_YES;
1207 GNUNET_assert (NULL != host);
1208 GNUNET_TESTBED_mark_host_registered_at_ (host, controller);
1209 controller->host = host;
1210 controller->opq_parallel_operations =
1211 GNUNET_TESTBED_operation_queue_create_ ((unsigned int)
1212 max_parallel_operations);
1213 controller->opq_parallel_service_connections =
1214 GNUNET_TESTBED_operation_queue_create_ ((unsigned int)
1215 max_parallel_service_connections);
1216 controller_hostname = GNUNET_TESTBED_host_get_hostname_ (host);
1217 if (NULL == controller_hostname)
1218 controller_hostname = "127.0.0.1";
1219 msg = GNUNET_malloc (sizeof (struct GNUNET_TESTBED_InitMessage)
1220 + strlen (controller_hostname) + 1);
1221 msg->header.type = htons (GNUNET_MESSAGE_TYPE_TESTBED_INIT);
1222 msg->header.size = htons (sizeof (struct GNUNET_TESTBED_InitMessage)
1223 + strlen (controller_hostname) + 1);
1224 msg->host_id = htonl (GNUNET_TESTBED_host_get_id_ (host));
1225 msg->event_mask = GNUNET_htonll (controller->event_mask);
1226 strcpy ((char *) &msg[1], controller_hostname);
1227 GNUNET_TESTBED_queue_message_ (controller, (struct GNUNET_MessageHeader *)
1234 * Configure shared services at a controller. Using this function,
1235 * you can specify that certain services (such as "resolver")
1236 * should not be run for each peer but instead be shared
1237 * across N peers on the specified host. This function
1238 * must be called before any peers are created at the host.
1240 * @param controller controller to configure
1241 * @param service_name name of the service to share
1242 * @param num_peers number of peers that should share one instance
1243 * of the specified service (1 for no sharing is the default),
1244 * use 0 to disable the service
1247 GNUNET_TESTBED_controller_configure_sharing (struct GNUNET_TESTBED_Controller *controller,
1248 const char *service_name,
1251 struct GNUNET_TESTBED_ConfigureSharedServiceMessage *msg;
1252 uint16_t service_name_size;
1255 service_name_size = strlen (service_name) + 1;
1256 msg_size = sizeof (struct GNUNET_TESTBED_ConfigureSharedServiceMessage)
1257 + service_name_size;
1258 msg = GNUNET_malloc (msg_size);
1259 msg->header.size = htons (msg_size);
1260 msg->header.type = htons (GNUNET_MESSAGE_TYPE_TESTBED_SERVICESHARE);
1261 msg->host_id = htonl (GNUNET_TESTBED_host_get_id_ (controller->host));
1262 msg->num_peers = htonl (num_peers);
1263 memcpy (&msg[1], service_name, service_name_size);
1264 GNUNET_TESTBED_queue_message_ (controller, (struct GNUNET_MessageHeader *) msg);
1269 * disconnects from the controller.
1271 * @param controller handle to controller to stop
1274 GNUNET_TESTBED_controller_disconnect (struct GNUNET_TESTBED_Controller *controller)
1276 struct MessageQueue *mq_entry;
1278 if (NULL != controller->th)
1279 GNUNET_CLIENT_notify_transmit_ready_cancel (controller->th);
1280 /* Clear the message queue */
1281 while (NULL != (mq_entry = controller->mq_head))
1283 GNUNET_CONTAINER_DLL_remove (controller->mq_head,
1284 controller->mq_tail,
1286 GNUNET_free (mq_entry->msg);
1287 GNUNET_free (mq_entry);
1289 if (NULL != controller->client)
1290 GNUNET_CLIENT_disconnect (controller->client);
1291 GNUNET_CONFIGURATION_destroy (controller->cfg);
1292 if (GNUNET_YES == controller->aux_host)
1293 GNUNET_TESTBED_host_destroy (controller->host);
1294 GNUNET_TESTBED_operation_queue_destroy_ (controller->opq_parallel_operations);
1295 GNUNET_free (controller);
1300 * Register a host with the controller
1302 * @param controller the controller handle
1303 * @param host the host to register
1304 * @param cc the completion callback to call to inform the status of
1305 * registration. After calling this callback the registration handle
1306 * will be invalid. Cannot be NULL.
1307 * @param cc_cls the closure for the cc
1308 * @return handle to the host registration which can be used to cancel the
1311 struct GNUNET_TESTBED_HostRegistrationHandle *
1312 GNUNET_TESTBED_register_host (struct GNUNET_TESTBED_Controller *controller,
1313 struct GNUNET_TESTBED_Host *host,
1314 GNUNET_TESTBED_HostRegistrationCompletion cc,
1317 struct GNUNET_TESTBED_HostRegistrationHandle *rh;
1318 struct GNUNET_TESTBED_AddHostMessage *msg;
1319 const char *username;
1320 const char *hostname;
1322 uint16_t user_name_length;
1324 if (NULL != controller->rh)
1326 hostname = GNUNET_TESTBED_host_get_hostname_ (host);
1327 if (GNUNET_YES == GNUNET_TESTBED_is_host_registered_ (host, controller))
1329 LOG (GNUNET_ERROR_TYPE_WARNING,
1330 "Host hostname: %s already registered\n",
1331 (NULL == hostname) ? "localhost" : hostname);
1334 rh = GNUNET_malloc (sizeof (struct GNUNET_TESTBED_HostRegistrationHandle));
1337 GNUNET_assert (NULL != cc);
1339 rh->cc_cls = cc_cls;
1340 controller->rh = rh;
1341 username = GNUNET_TESTBED_host_get_username_ (host);
1342 msg_size = (sizeof (struct GNUNET_TESTBED_AddHostMessage));
1343 user_name_length = 0;
1344 if (NULL != username)
1346 user_name_length = strlen (username) + 1;
1347 msg_size += user_name_length;
1349 /* FIXME: what happens when hostname is NULL? localhost */
1350 GNUNET_assert (NULL != hostname);
1351 msg_size += strlen (hostname) + 1;
1352 msg = GNUNET_malloc (msg_size);
1353 msg->header.size = htons (msg_size);
1354 msg->header.type = htons (GNUNET_MESSAGE_TYPE_TESTBED_ADDHOST);
1355 msg->host_id = htonl (GNUNET_TESTBED_host_get_id_ (host));
1356 msg->ssh_port = htons (GNUNET_TESTBED_host_get_ssh_port_ (host));
1357 msg->user_name_length = htons (user_name_length);
1358 if (NULL != username)
1359 memcpy (&msg[1], username, user_name_length);
1360 strcpy (((void *) &msg[1]) + user_name_length, hostname);
1361 GNUNET_TESTBED_queue_message_ (controller, (struct GNUNET_MessageHeader *) msg);
1367 * Cancel the pending registration. Note that if the registration message is
1368 * already sent to the service the cancellation has only the effect that the
1369 * registration completion callback for the registration is never called.
1371 * @param handle the registration handle to cancel
1374 GNUNET_TESTBED_cancel_registration (struct GNUNET_TESTBED_HostRegistrationHandle
1377 if (handle != handle->c->rh)
1382 handle->c->rh = NULL;
1383 GNUNET_free (handle);
1388 * Same as the GNUNET_TESTBED_controller_link, however expects configuration in
1389 * serialized and compressed
1391 * @param master handle to the master controller who creates the association
1392 * @param delegated_host requests to which host should be delegated; cannot be NULL
1393 * @param slave_host which host is used to run the slave controller; use NULL to
1394 * make the master controller connect to the delegated host
1395 * @param sxcfg serialized and compressed configuration
1396 * @param sxcfg_size the size scfg
1397 * @param scfg_size the size of uncompressed serialized configuration
1398 * @param is_subordinate GNUNET_YES if the controller at delegated_host should
1399 * be started by the master controller; GNUNET_NO if we are just
1400 * allowed to use the slave via TCP/IP
1402 struct GNUNET_TESTBED_Operation *
1403 GNUNET_TESTBED_controller_link_2 (struct GNUNET_TESTBED_Controller *master,
1404 struct GNUNET_TESTBED_Host *delegated_host,
1405 struct GNUNET_TESTBED_Host *slave_host,
1411 struct OperationContext *opc;
1412 struct GNUNET_TESTBED_ControllerLinkMessage *msg;
1415 GNUNET_assert (GNUNET_YES ==
1416 GNUNET_TESTBED_is_host_registered_ (delegated_host, master));
1417 if ((NULL != slave_host) && (0 != GNUNET_TESTBED_host_get_id_ (slave_host)))
1418 GNUNET_assert (GNUNET_YES ==
1419 GNUNET_TESTBED_is_host_registered_ (slave_host, master));
1420 msg_size = sxcfg_size + sizeof (struct GNUNET_TESTBED_ControllerLinkMessage);
1421 msg = GNUNET_malloc (msg_size);
1422 msg->header.type = htons (GNUNET_MESSAGE_TYPE_TESTBED_LCONTROLLERS);
1423 msg->header.size = htons (msg_size);
1424 msg->delegated_host_id = htonl (GNUNET_TESTBED_host_get_id_ (delegated_host));
1425 msg->slave_host_id = htonl (GNUNET_TESTBED_host_get_id_
1426 ((NULL != slave_host) ? slave_host : master->host));
1427 msg->config_size = htons ((uint16_t) scfg_size);
1428 msg->is_subordinate = (GNUNET_YES == is_subordinate) ? 1 : 0;
1429 memcpy (&msg[1], sxcfg, sxcfg_size);
1430 opc = GNUNET_malloc (sizeof (struct OperationContext));
1433 opc->type = OP_LINK_CONTROLLERS;
1434 opc->id = master->operation_counter++;
1435 opc->state = OPC_STATE_INIT;
1436 msg->operation_id = GNUNET_htonll (opc->id);
1437 opc->op = GNUNET_TESTBED_operation_create_ (opc, &opstart_link_controllers,
1438 &oprelease_link_controllers);
1439 GNUNET_TESTBED_operation_queue_insert_ (master->opq_parallel_operations,
1446 * Compresses given configuration using zlib compress
1448 * @param config the serialized configuration
1449 * @param size the size of config
1450 * @param xconfig will be set to the compressed configuration (memory is fresly
1452 * @return the size of the xconfig
1455 GNUNET_TESTBED_compress_config_ (const char *config, size_t size,
1460 xsize = compressBound ((uLong) size);
1461 *xconfig = GNUNET_malloc (xsize);
1462 GNUNET_assert (Z_OK ==
1463 compress2 ((Bytef *)* xconfig, (uLongf *) &xsize,
1464 (const Bytef *) config, (uLongf) size,
1471 * Create a link from slave controller to delegated controller. Whenever the
1472 * master controller is asked to start a peer at the delegated controller the
1473 * request will be routed towards slave controller (if a route exists). The
1474 * slave controller will then route it to the delegated controller. The
1475 * configuration of the slave controller is given and to be used to either
1476 * create the slave controller or to connect to an existing slave controller
1477 * process. 'is_subordinate' specifies if the given slave controller should be
1478 * started and managed by the master controller, or if the slave already has a
1479 * master and this is just a secondary master that is also allowed to use the
1482 * @param master handle to the master controller who creates the association
1483 * @param delegated_host requests to which host should be delegated
1484 * @param slave_host which host is used to run the slave controller
1485 * @param slave_cfg configuration to use for the slave controller
1486 * @param is_subordinate GNUNET_YES if the slave should be started (and stopped)
1487 * by the master controller; GNUNET_NO if we are just
1488 * allowed to use the slave via TCP/IP
1489 * @return the operation handle
1491 struct GNUNET_TESTBED_Operation *
1492 GNUNET_TESTBED_controller_link (struct GNUNET_TESTBED_Controller *master,
1493 struct GNUNET_TESTBED_Host *delegated_host,
1494 struct GNUNET_TESTBED_Host *slave_host,
1495 const struct GNUNET_CONFIGURATION_Handle *slave_cfg,
1498 struct GNUNET_TESTBED_Operation *op;
1504 GNUNET_assert (GNUNET_YES ==
1505 GNUNET_TESTBED_is_host_registered_ (delegated_host, master));
1506 if ((NULL != slave_host) && (0 != GNUNET_TESTBED_host_get_id_ (slave_host)))
1507 GNUNET_assert (GNUNET_YES ==
1508 GNUNET_TESTBED_is_host_registered_ (slave_host, master));
1509 config = GNUNET_CONFIGURATION_serialize (slave_cfg, &config_size);
1510 cc_size = GNUNET_TESTBED_compress_config_ (config, config_size, &cconfig);
1511 GNUNET_free (config);
1512 GNUNET_assert ((UINT16_MAX -
1513 sizeof (struct GNUNET_TESTBED_ControllerLinkMessage))
1514 >= cc_size); /* Configuration doesn't fit in 1 message */
1515 op = GNUNET_TESTBED_controller_link_2 (master, delegated_host, slave_host,
1516 (const char *) cconfig,
1517 cc_size, config_size, is_subordinate);
1518 GNUNET_free (cconfig);
1524 * Ask the testbed controller to write the current overlay topology to
1525 * a file. Naturally, the file will only contain a snapshot as the
1526 * topology may evolve all the time.
1528 * @param controller overlay controller to inspect
1529 * @param filename name of the file the topology should
1533 GNUNET_TESTBED_overlay_write_topology_to_file (struct GNUNET_TESTBED_Controller *controller,
1534 const char *filename)
1541 * Creates a helper initialization message. This function is here because we
1542 * want to use this in testing
1544 * @param cname the ip address of the controlling host
1545 * @param cfg the configuration that has to used to start the testbed service
1547 * @return the initialization message
1549 struct GNUNET_TESTBED_HelperInit *
1550 GNUNET_TESTBED_create_helper_init_msg_ (const char *cname,
1551 const struct GNUNET_CONFIGURATION_Handle *cfg)
1553 struct GNUNET_TESTBED_HelperInit *msg;
1557 size_t xconfig_size;
1561 config = GNUNET_CONFIGURATION_serialize (cfg, &config_size);
1562 GNUNET_assert (NULL != config);
1564 GNUNET_TESTBED_compress_config_ (config, config_size, &xconfig);
1565 GNUNET_free (config);
1566 cname_len = strlen (cname);
1567 msg_size = xconfig_size + cname_len + 1 +
1568 sizeof (struct GNUNET_TESTBED_HelperInit);
1569 msg = GNUNET_realloc (xconfig, msg_size);
1570 (void) memmove ( ((void *) &msg[1]) + cname_len + 1, msg, xconfig_size);
1571 msg->header.size = htons (msg_size);
1572 msg->header.type = htons (GNUNET_MESSAGE_TYPE_TESTBED_HELPER_INIT);
1573 msg->cname_size = htons (cname_len);
1574 msg->config_size = htons (config_size);
1575 (void) strcpy ((char *) &msg[1], cname);
1581 * Cancel a pending operation. Releases all resources
1582 * of the operation and will ensure that no event
1583 * is generated for the operation. Does NOT guarantee
1584 * that the operation will be fully undone (or that
1585 * nothing ever happened).
1587 * @param operation operation to cancel
1590 GNUNET_TESTBED_operation_cancel (struct GNUNET_TESTBED_Operation *operation)
1592 GNUNET_TESTBED_operation_done (operation);
1597 * Signal that the information from an operation has been fully
1598 * processed. This function MUST be called for each event
1599 * of type 'operation_finished' to fully remove the operation
1600 * from the operation queue. After calling this function, the
1601 * 'op_result' becomes invalid (!).
1603 * @param operation operation to signal completion for
1606 GNUNET_TESTBED_operation_done (struct GNUNET_TESTBED_Operation *operation)
1608 switch (operation->type)
1610 case OP_PEER_CREATE:
1611 case OP_PEER_DESTROY:
1615 case OP_OVERLAY_CONNECT:
1616 case OP_LINK_CONTROLLERS:
1617 GNUNET_TESTBED_operation_release_ (operation);
1625 /* end of testbed_api.c */