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.
10 GNUnet is distributed in the hope that it will be useful, but
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];
240 emsg[msg_size - 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;
309 case OP_LINK_CONTROLLERS:
316 event->details.operation_finished.operation = opc->op;
317 event->details.operation_finished.op_cls = NULL;
318 event->details.operation_finished.emsg = NULL;
319 event->details.operation_finished.pit = GNUNET_TESTBED_PIT_GENERIC;
320 event->details.operation_finished.op_result.generic = NULL;
322 GNUNET_CONTAINER_DLL_remove (opc->c->ocq_head, opc->c->ocq_tail, opc);
323 opc->state = OPC_STATE_FINISHED;
327 c->cc (c->cc_cls, event);
335 * Handler for GNUNET_MESSAGE_TYPE_TESTBED_PEERCREATESUCCESS message from
336 * controller (testbed service)
338 * @param c the controller handler
339 * @param msg message received
340 * @return GNUNET_YES if we can continue receiving from service; GNUNET_NO if
344 handle_peer_create_success (struct GNUNET_TESTBED_Controller *c,
346 GNUNET_TESTBED_PeerCreateSuccessEventMessage *msg)
348 struct OperationContext *opc;
349 struct PeerCreateData *data;
350 struct GNUNET_TESTBED_Peer *peer;
351 GNUNET_TESTBED_PeerCreateCallback cb;
355 GNUNET_assert (sizeof (struct GNUNET_TESTBED_PeerCreateSuccessEventMessage) ==
356 ntohs (msg->header.size));
357 op_id = GNUNET_ntohll (msg->operation_id);
358 if (NULL == (opc = find_opc (c, op_id)))
360 LOG_DEBUG ("Operation context for PeerCreateSuccessEvent not found\n");
363 if (OP_FORWARDED == opc->type)
365 struct ForwardedOperationData *fo_data;
368 if (NULL != fo_data->cc)
369 fo_data->cc (fo_data->cc_cls, (const struct GNUNET_MessageHeader *) msg);
370 GNUNET_CONTAINER_DLL_remove (c->ocq_head, c->ocq_tail, opc);
371 GNUNET_free (fo_data);
375 GNUNET_assert (OP_PEER_CREATE == opc->type);
376 GNUNET_assert (NULL != opc->data);
378 GNUNET_assert (NULL != data->peer);
380 GNUNET_assert (peer->unique_id == ntohl (msg->peer_id));
381 peer->state = PS_CREATED;
384 GNUNET_free (opc->data);
385 GNUNET_CONTAINER_DLL_remove (opc->c->ocq_head, opc->c->ocq_tail, opc);
386 opc->state = OPC_STATE_FINISHED;
388 cb (cls, peer, NULL);
394 * Handler for GNUNET_MESSAGE_TYPE_TESTBED_PEEREVENT message from
395 * controller (testbed service)
397 * @param c the controller handler
398 * @param msg message received
399 * @return GNUNET_YES if we can continue receiving from service; GNUNET_NO if
403 handle_peer_event (struct GNUNET_TESTBED_Controller *c,
404 const struct GNUNET_TESTBED_PeerEventMessage *msg)
406 struct OperationContext *opc;
407 struct GNUNET_TESTBED_Peer *peer;
408 struct GNUNET_TESTBED_EventInformation event;
411 GNUNET_assert (sizeof (struct GNUNET_TESTBED_PeerEventMessage) ==
412 ntohs (msg->header.size));
413 op_id = GNUNET_ntohll (msg->operation_id);
414 if (NULL == (opc = find_opc (c, op_id)))
416 LOG_DEBUG ("Operation not found\n");
419 if (OP_FORWARDED == opc->type)
421 struct ForwardedOperationData *fo_data;
424 if (NULL != fo_data->cc)
425 fo_data->cc (fo_data->cc_cls, (const struct GNUNET_MessageHeader *) msg);
426 GNUNET_CONTAINER_DLL_remove (c->ocq_head, c->ocq_tail, opc);
427 GNUNET_free (fo_data);
431 GNUNET_assert ((OP_PEER_START == opc->type) || (OP_PEER_STOP == opc->type));
433 GNUNET_assert (NULL != peer);
434 event.type = (enum GNUNET_TESTBED_EventType) ntohl (msg->event_type);
437 case GNUNET_TESTBED_ET_PEER_START:
438 peer->state = PS_STARTED;
439 event.details.peer_start.host = peer->host;
440 event.details.peer_start.peer = peer;
442 case GNUNET_TESTBED_ET_PEER_STOP:
443 peer->state = PS_STOPPED;
444 event.details.peer_stop.peer = peer;
447 GNUNET_assert (0); /* We should never reach this state */
449 GNUNET_CONTAINER_DLL_remove (opc->c->ocq_head, opc->c->ocq_tail, opc);
450 opc->state = OPC_STATE_FINISHED;
452 ((GNUNET_TESTBED_ET_PEER_START | GNUNET_TESTBED_ET_PEER_STOP) &
456 c->cc (c->cc_cls, &event);
463 * Handler for GNUNET_MESSAGE_TYPE_TESTBED_PEERCONEVENT message from
464 * controller (testbed service)
466 * @param c the controller handler
467 * @param msg message received
468 * @return GNUNET_YES if we can continue receiving from service; GNUNET_NO if
472 handle_peer_conevent (struct GNUNET_TESTBED_Controller *c,
473 const struct GNUNET_TESTBED_ConnectionEventMessage *msg)
475 struct OperationContext *opc;
476 struct OverlayConnectData *data;
477 struct GNUNET_TESTBED_EventInformation event;
480 op_id = GNUNET_ntohll (msg->operation_id);
481 if (NULL == (opc = find_opc (c, op_id)))
483 LOG_DEBUG ("Operation not found\n");
487 GNUNET_assert (NULL != data);
488 GNUNET_assert ((ntohl (msg->peer1) == data->p1->unique_id) &&
489 (ntohl (msg->peer2) == data->p2->unique_id));
490 event.type = (enum GNUNET_TESTBED_EventType) ntohl (msg->event_type);
493 case GNUNET_TESTBED_ET_CONNECT:
494 event.details.peer_connect.peer1 = data->p1;
495 event.details.peer_connect.peer2 = data->p2;
497 case GNUNET_TESTBED_ET_DISCONNECT:
498 GNUNET_assert (0); /* FIXME: implement */
501 GNUNET_assert (0); /* Should never reach here */
504 GNUNET_CONTAINER_DLL_remove (opc->c->ocq_head, opc->c->ocq_tail, opc);
505 opc->state = OPC_STATE_FINISHED;
508 ((GNUNET_TESTBED_ET_CONNECT | GNUNET_TESTBED_ET_DISCONNECT) &
512 c->cc (c->cc_cls, &event);
519 * Handler for GNUNET_MESSAGE_TYPE_TESTBED_PEERCONFIG message from
520 * controller (testbed service)
522 * @param c the controller handler
523 * @param msg message received
524 * @return GNUNET_YES if we can continue receiving from service; GNUNET_NO if
528 handle_peer_config (struct GNUNET_TESTBED_Controller *c,
530 GNUNET_TESTBED_PeerConfigurationInformationMessage *msg)
532 struct OperationContext *opc;
533 struct GNUNET_TESTBED_Peer *peer;
534 struct PeerInfoData *data;
535 struct PeerInfoData2 *response_data;
536 struct GNUNET_TESTBED_EventInformation info;
539 op_id = GNUNET_ntohll (msg->operation_id);
540 if (NULL == (opc = find_opc (c, op_id)))
542 LOG_DEBUG ("Operation not found\n");
545 if (OP_FORWARDED == opc->type)
547 struct ForwardedOperationData *fo_data;
550 if (NULL != fo_data->cc)
551 fo_data->cc (fo_data->cc_cls, (const struct GNUNET_MessageHeader *) msg);
552 GNUNET_CONTAINER_DLL_remove (c->ocq_head, c->ocq_tail, opc);
553 GNUNET_free (fo_data);
558 GNUNET_assert (NULL != data);
560 GNUNET_assert (NULL != peer);
561 GNUNET_assert (ntohl (msg->peer_id) == peer->unique_id);
562 if (0 == (c->event_mask & (1L << GNUNET_TESTBED_ET_OPERATION_FINISHED)))
564 LOG_DEBUG ("Skipping operation callback as flag not set\n");
567 response_data = GNUNET_malloc (sizeof (struct PeerInfoData2));
568 response_data->pit = data->pit;
571 info.type = GNUNET_TESTBED_ET_OPERATION_FINISHED;
572 info.details.operation_finished.operation = opc->op;
573 info.details.operation_finished.op_cls = NULL;
574 info.details.operation_finished.emsg = NULL;
575 info.details.operation_finished.pit = response_data->pit;
576 switch (response_data->pit)
578 case GNUNET_TESTBED_PIT_IDENTITY:
580 struct GNUNET_PeerIdentity *peer_identity;
582 peer_identity = GNUNET_malloc (sizeof (struct GNUNET_PeerIdentity));
583 (void) memcpy (peer_identity, &msg->peer_identity,
584 sizeof (struct GNUNET_PeerIdentity));
585 response_data->details.peer_identity = peer_identity;
586 info.details.operation_finished.op_result.pid = peer_identity;
589 case GNUNET_TESTBED_PIT_CONFIGURATION:
590 response_data->details.cfg = /* Freed in oprelease_peer_getinfo */
591 GNUNET_TESTBED_get_config_from_peerinfo_msg_ (msg);
592 info.details.operation_finished.op_result.cfg = response_data->details.cfg;
594 case GNUNET_TESTBED_PIT_GENERIC:
595 GNUNET_assert (0); /* never reach here */
598 opc->data = response_data;
599 GNUNET_CONTAINER_DLL_remove (opc->c->ocq_head, opc->c->ocq_tail, opc);
600 opc->state = OPC_STATE_FINISHED;
602 ((GNUNET_TESTBED_ET_CONNECT | GNUNET_TESTBED_ET_DISCONNECT) &
606 c->cc (c->cc_cls, &info);
613 * Handler for GNUNET_MESSAGE_TYPE_TESTBED_OPERATIONEVENT message from
614 * controller (testbed service)
616 * @param c the controller handler
617 * @param msg message received
618 * @return GNUNET_YES if we can continue receiving from service; GNUNET_NO if
622 handle_op_fail_event (struct GNUNET_TESTBED_Controller *c,
623 const struct GNUNET_TESTBED_OperationFailureEventMessage
626 struct OperationContext *opc;
629 struct GNUNET_TESTBED_EventInformation event;
632 op_id = GNUNET_ntohll (msg->operation_id);
633 if (NULL == (opc = find_opc (c, op_id)))
635 LOG_DEBUG ("Operation not found\n");
638 if (OP_FORWARDED == opc->type)
640 struct ForwardedOperationData *fo_data;
643 if (NULL != fo_data->cc)
644 fo_data->cc (fo_data->cc_cls, (const struct GNUNET_MessageHeader *) msg);
645 GNUNET_CONTAINER_DLL_remove (c->ocq_head, c->ocq_tail, opc);
646 GNUNET_free (fo_data);
650 GNUNET_CONTAINER_DLL_remove (opc->c->ocq_head, opc->c->ocq_tail, opc);
651 opc->state = OPC_STATE_FINISHED;
654 /* FIXME: Cleanup the data pointer depending on the type of opc */
658 msize = ntohs (msg->header.size);
660 if (msize > sizeof (struct GNUNET_TESTBED_OperationFailureEventMessage))
662 msize -= sizeof (struct GNUNET_TESTBED_OperationFailureEventMessage);
663 emsg = (char *) &msg[1];
664 GNUNET_assert ('\0' == emsg[msize - 1]);
666 if ((0 != (GNUNET_TESTBED_ET_OPERATION_FINISHED & c->event_mask)) &&
669 event.type = GNUNET_TESTBED_ET_OPERATION_FINISHED;
670 event.details.operation_finished.operation = opc->op;
671 event.details.operation_finished.op_cls = NULL;
672 event.details.operation_finished.emsg = emsg;
673 event.details.operation_finished.pit = GNUNET_TESTBED_PIT_GENERIC;
674 event.details.operation_finished.op_result.generic = NULL;
675 c->cc (c->cc_cls, &event);
682 * Handler for messages from controller (testbed service)
684 * @param cls the controller handler
685 * @param msg message received, NULL on timeout or fatal error
688 message_handler (void *cls, const struct GNUNET_MessageHeader *msg)
690 struct GNUNET_TESTBED_Controller *c = cls;
694 c->in_receive = GNUNET_NO;
695 /* FIXME: Add checks for message integrity */
698 LOG_DEBUG ("Receive timed out or connection to service dropped\n");
702 msize = ntohs (msg->size);
703 switch (ntohs (msg->type))
705 case GNUNET_MESSAGE_TYPE_TESTBED_ADDHOSTCONFIRM:
706 GNUNET_assert (msize >=
707 sizeof (struct GNUNET_TESTBED_HostConfirmedMessage));
709 handle_addhostconfirm (c,
710 (const struct GNUNET_TESTBED_HostConfirmedMessage
713 case GNUNET_MESSAGE_TYPE_TESTBED_GENERICOPSUCCESS:
714 GNUNET_assert (msize ==
716 GNUNET_TESTBED_GenericOperationSuccessEventMessage));
720 GNUNET_TESTBED_GenericOperationSuccessEventMessage *)
723 case GNUNET_MESSAGE_TYPE_TESTBED_PEERCREATESUCCESS:
724 GNUNET_assert (msize ==
726 GNUNET_TESTBED_PeerCreateSuccessEventMessage));
728 handle_peer_create_success (c,
730 GNUNET_TESTBED_PeerCreateSuccessEventMessage
733 case GNUNET_MESSAGE_TYPE_TESTBED_PEEREVENT:
734 GNUNET_assert (msize == sizeof (struct GNUNET_TESTBED_PeerEventMessage));
736 handle_peer_event (c,
737 (const struct GNUNET_TESTBED_PeerEventMessage *)
741 case GNUNET_MESSAGE_TYPE_TESTBED_PEERCONFIG:
742 GNUNET_assert (msize >=
744 GNUNET_TESTBED_PeerConfigurationInformationMessage));
746 handle_peer_config (c,
748 GNUNET_TESTBED_PeerConfigurationInformationMessage
751 case GNUNET_MESSAGE_TYPE_TESTBED_PEERCONEVENT:
752 GNUNET_assert (msize ==
753 sizeof (struct GNUNET_TESTBED_ConnectionEventMessage));
755 handle_peer_conevent (c,
757 GNUNET_TESTBED_ConnectionEventMessage *) msg);
759 case GNUNET_MESSAGE_TYPE_TESTBED_OPERATIONEVENT:
760 GNUNET_assert (msize >=
761 sizeof (struct GNUNET_TESTBED_OperationFailureEventMessage));
763 handle_op_fail_event (c,
765 GNUNET_TESTBED_OperationFailureEventMessage *)
771 if ((GNUNET_OK == status) && (GNUNET_NO == c->in_receive))
773 c->in_receive = GNUNET_YES;
774 GNUNET_CLIENT_receive (c->client, &message_handler, c,
775 GNUNET_TIME_UNIT_FOREVER_REL);
781 * Function called to notify a client about the connection begin ready to queue
782 * more data. "buf" will be NULL and "size" zero if the connection was closed
783 * for writing in the meantime.
786 * @param size number of bytes available in buf
787 * @param buf where the callee should write the message
788 * @return number of bytes written to buf
791 transmit_ready_notify (void *cls, size_t size, void *buf)
793 struct GNUNET_TESTBED_Controller *c = cls;
794 struct MessageQueue *mq_entry;
797 mq_entry = c->mq_head;
798 GNUNET_assert (NULL != mq_entry);
799 if ((0 == size) && (NULL == buf)) /* Timeout */
801 LOG_DEBUG ("Message sending timed out -- retrying\n");
803 GNUNET_CLIENT_notify_transmit_ready (c->client,
804 ntohs (mq_entry->msg->size),
805 TIMEOUT_REL, GNUNET_YES,
806 &transmit_ready_notify, c);
809 GNUNET_assert (ntohs (mq_entry->msg->size) <= size);
810 size = ntohs (mq_entry->msg->size);
811 memcpy (buf, mq_entry->msg, size);
812 LOG_DEBUG ("Message of type: %u and size: %u sent\n",
813 ntohs (mq_entry->msg->type), size);
814 GNUNET_free (mq_entry->msg);
815 GNUNET_CONTAINER_DLL_remove (c->mq_head, c->mq_tail, mq_entry);
816 GNUNET_free (mq_entry);
817 mq_entry = c->mq_head;
818 if (NULL != mq_entry)
820 GNUNET_CLIENT_notify_transmit_ready (c->client,
821 ntohs (mq_entry->msg->size),
822 TIMEOUT_REL, GNUNET_YES,
823 &transmit_ready_notify, c);
824 if (GNUNET_NO == c->in_receive)
826 c->in_receive = GNUNET_YES;
827 GNUNET_CLIENT_receive (c->client, &message_handler, c,
828 GNUNET_TIME_UNIT_FOREVER_REL);
835 * Queues a message in send queue for sending to the service
837 * @param controller the handle to the controller
838 * @param msg the message to queue
841 GNUNET_TESTBED_queue_message_ (struct GNUNET_TESTBED_Controller *controller,
842 struct GNUNET_MessageHeader *msg)
844 struct MessageQueue *mq_entry;
848 type = ntohs (msg->type);
849 size = ntohs (msg->size);
850 GNUNET_assert ((GNUNET_MESSAGE_TYPE_TESTBED_INIT <= type) &&
851 (GNUNET_MESSAGE_TYPE_TESTBED_MAX > type));
852 mq_entry = GNUNET_malloc (sizeof (struct MessageQueue));
854 LOG (GNUNET_ERROR_TYPE_DEBUG,
855 "Queueing message of type %u, size %u for sending\n", type,
857 GNUNET_CONTAINER_DLL_insert_tail (controller->mq_head, controller->mq_tail,
859 if (NULL == controller->th)
861 GNUNET_CLIENT_notify_transmit_ready (controller->client, size,
862 TIMEOUT_REL, GNUNET_YES,
863 &transmit_ready_notify,
869 * Sends the given message as an operation. The given callback is called when a
870 * reply for the operation is available. Call
871 * GNUNET_TESTBED_forward_operation_msg_cancel_() to cleanup the returned
872 * operation context if the cc hasn't been called
874 * @param controller the controller to which the message has to be sent
875 * @param operation_id the operation id of the message
876 * @param msg the message to send
877 * @param cc the callback to call when reply is available
878 * @param cc_cls the closure for the above callback
879 * @return the operation context which can be used to cancel the forwarded
882 struct OperationContext *
883 GNUNET_TESTBED_forward_operation_msg_ (struct GNUNET_TESTBED_Controller
884 *controller, uint64_t operation_id,
885 const struct GNUNET_MessageHeader *msg,
886 GNUNET_CLIENT_MessageHandler cc,
889 struct OperationContext *opc;
890 struct ForwardedOperationData *data;
891 struct GNUNET_MessageHeader *dup_msg;
894 data = GNUNET_malloc (sizeof (struct ForwardedOperationData));
896 data->cc_cls = cc_cls;
897 opc = GNUNET_malloc (sizeof (struct OperationContext));
899 opc->type = OP_FORWARDED;
901 opc->id = operation_id;
902 msize = ntohs (msg->size);
903 dup_msg = GNUNET_malloc (msize);
904 (void) memcpy (dup_msg, msg, msize);
905 GNUNET_TESTBED_queue_message_ (opc->c, dup_msg);
906 GNUNET_CONTAINER_DLL_insert_tail (controller->ocq_head, controller->ocq_tail,
913 * Function to cancel an operation created by simply forwarding an operation
916 * @param opc the operation context from GNUNET_TESTBED_forward_operation_msg_()
919 GNUNET_TESTBED_forward_operation_msg_cancel_ (struct OperationContext *opc)
921 GNUNET_CONTAINER_DLL_remove (opc->c->ocq_head, opc->c->ocq_tail, opc);
922 GNUNET_free (opc->data);
928 * Handle for controller process
930 struct GNUNET_TESTBED_ControllerProc
935 struct GNUNET_HELPER_Handle *helper;
938 * The host where the helper is run
940 struct GNUNET_TESTBED_Host *host;
943 * The controller error callback
945 GNUNET_TESTBED_ControllerStatusCallback cb;
948 * The closure for the above callback
953 * The send handle for the helper
955 struct GNUNET_HELPER_SendHandle *shandle;
958 * The message corresponding to send handle
960 struct GNUNET_MessageHeader *msg;
963 * The port number for ssh; used for helpers starting ssh
968 * The ssh destination string; used for helpers starting ssh
973 * The configuration of the running testbed service
975 struct GNUNET_CONFIGURATION_Handle *cfg;
981 * Functions with this signature are called whenever a
982 * complete message is received by the tokenizer.
984 * Do not call GNUNET_SERVER_mst_destroy in callback
987 * @param client identification of the client
988 * @param message the actual message
990 * @return GNUNET_OK on success, GNUNET_SYSERR to stop further processing
993 helper_mst (void *cls, void *client, const struct GNUNET_MessageHeader *message)
995 struct GNUNET_TESTBED_ControllerProc *cp = cls;
996 const struct GNUNET_TESTBED_HelperReply *msg;
997 const char *hostname;
1000 uLongf xconfig_size;
1002 msg = (const struct GNUNET_TESTBED_HelperReply *) message;
1003 GNUNET_assert (sizeof (struct GNUNET_TESTBED_HelperReply) <
1004 ntohs (msg->header.size));
1005 GNUNET_assert (GNUNET_MESSAGE_TYPE_TESTBED_HELPER_REPLY ==
1006 ntohs (msg->header.type));
1007 config_size = (uLongf) ntohs (msg->config_size);
1009 (uLongf) (ntohs (msg->header.size) -
1010 sizeof (struct GNUNET_TESTBED_HelperReply));
1011 config = GNUNET_malloc (config_size);
1012 GNUNET_assert (Z_OK ==
1013 uncompress ((Bytef *) config, &config_size,
1014 (const Bytef *) &msg[1], xconfig_size));
1015 GNUNET_assert (NULL == cp->cfg);
1016 cp->cfg = GNUNET_CONFIGURATION_create ();
1017 GNUNET_assert (GNUNET_CONFIGURATION_deserialize
1018 (cp->cfg, config, config_size, GNUNET_NO));
1019 GNUNET_free (config);
1020 if ((NULL == cp->host) ||
1021 (NULL == (hostname = GNUNET_TESTBED_host_get_hostname_ (cp->host))))
1022 hostname = "localhost";
1023 /* Change the hostname so that we can connect to it */
1024 GNUNET_CONFIGURATION_set_value_string (cp->cfg, "testbed", "hostname",
1026 cp->cb (cp->cls, cp->cfg, GNUNET_OK);
1032 * Continuation function from GNUNET_HELPER_send()
1034 * @param cls closure
1035 * @param result GNUNET_OK on success,
1036 * GNUNET_NO if helper process died
1037 * GNUNET_SYSERR during GNUNET_HELPER_stop
1040 clear_msg (void *cls, int result)
1042 struct GNUNET_TESTBED_ControllerProc *cp = cls;
1044 GNUNET_assert (NULL != cp->shandle);
1046 GNUNET_free (cp->msg);
1051 * Callback that will be called when the helper process dies. This is not called
1052 * when the helper process is stoped using GNUNET_HELPER_stop()
1054 * @param cls the closure from GNUNET_HELPER_start()
1057 helper_exp_cb (void *cls)
1059 struct GNUNET_TESTBED_ControllerProc *cp = cls;
1060 GNUNET_TESTBED_ControllerStatusCallback cb;
1066 GNUNET_TESTBED_controller_stop (cp);
1068 cb (cb_cls, NULL, GNUNET_SYSERR);
1073 * Function to call to start a link-controllers type operation once all queues
1074 * the operation is part of declare that the operation can be activated.
1076 * @param cls the closure from GNUNET_TESTBED_operation_create_()
1079 opstart_link_controllers (void *cls)
1081 struct OperationContext *opc = cls;
1082 struct GNUNET_TESTBED_ControllerLinkMessage *msg;
1084 GNUNET_assert (NULL != opc->data);
1087 opc->state = OPC_STATE_STARTED;
1088 GNUNET_CONTAINER_DLL_insert_tail (opc->c->ocq_head, opc->c->ocq_tail, opc);
1089 GNUNET_TESTBED_queue_message_ (opc->c, &msg->header);
1094 * Callback which will be called when link-controllers type operation is released
1096 * @param cls the closure from GNUNET_TESTBED_operation_create_()
1099 oprelease_link_controllers (void *cls)
1101 struct OperationContext *opc = cls;
1103 if (OPC_STATE_INIT == opc->state)
1104 GNUNET_free (opc->data);
1105 if (OPC_STATE_STARTED == opc->state)
1106 GNUNET_CONTAINER_DLL_remove (opc->c->ocq_head, opc->c->ocq_tail, opc);
1112 * Starts a controller process at the host. FIXME: add controller start callback
1113 * with the configuration with which the controller is started
1115 * @param controller_ip the ip address of the controller. Will be set as TRUSTED
1116 * host when starting testbed controller at host
1117 * @param host the host where the controller has to be started; NULL for
1119 * @param cfg template configuration to use for the remote controller; the
1120 * remote controller will be started with a slightly modified
1121 * configuration (port numbers, unix domain sockets and service home
1122 * values are changed as per TESTING library on the remote host)
1123 * @param cb function called when the controller is successfully started or
1124 * dies unexpectedly; GNUNET_TESTBED_controller_stop shouldn't be
1125 * called if cb is called with GNUNET_SYSERR as status. Will never be
1126 * called in the same task as 'GNUNET_TESTBED_controller_start'
1127 * (synchronous errors will be signalled by returning NULL). This
1128 * parameter cannot be NULL.
1129 * @param cls closure for above callbacks
1130 * @return the controller process handle, NULL on errors
1132 struct GNUNET_TESTBED_ControllerProc *
1133 GNUNET_TESTBED_controller_start (const char *controller_ip,
1134 struct GNUNET_TESTBED_Host *host,
1135 const struct GNUNET_CONFIGURATION_Handle *cfg,
1136 GNUNET_TESTBED_ControllerStatusCallback cb,
1139 struct GNUNET_TESTBED_ControllerProc *cp;
1140 struct GNUNET_TESTBED_HelperInit *msg;
1142 cp = GNUNET_malloc (sizeof (struct GNUNET_TESTBED_ControllerProc));
1143 if ((NULL == host) || (0 == GNUNET_TESTBED_host_get_id_ (host)))
1145 char *const binary_argv[] = {
1146 "gnunet-testbed-helper", NULL
1150 GNUNET_HELPER_start (GNUNET_YES, "gnunet-testbed-helper", binary_argv,
1151 &helper_mst, &helper_exp_cb, cp);
1155 char *remote_args[8];
1157 const char *username;
1158 const char *hostname;
1160 username = GNUNET_TESTBED_host_get_username_ (host);
1161 hostname = GNUNET_TESTBED_host_get_hostname_ (host);
1162 GNUNET_asprintf (&cp->port, "%u", GNUNET_TESTBED_host_get_ssh_port_ (host));
1163 if (NULL == username)
1164 GNUNET_asprintf (&cp->dst, "%s", hostname);
1166 GNUNET_asprintf (&cp->dst, "%s@%s", username, hostname);
1167 LOG_DEBUG ("Starting SSH to destination %s\n", cp->dst);
1169 remote_args[argp++] = "ssh";
1170 remote_args[argp++] = "-p";
1171 remote_args[argp++] = cp->port;
1172 remote_args[argp++] = "-o";
1173 remote_args[argp++] = "BatchMode=yes";
1174 remote_args[argp++] = cp->dst;
1175 remote_args[argp++] = "gnunet-testbed-helper";
1176 remote_args[argp++] = NULL;
1177 GNUNET_assert (argp == 8);
1179 GNUNET_HELPER_start (GNUNET_NO, "ssh", remote_args, &helper_mst,
1180 &helper_exp_cb, cp);
1182 if (NULL == cp->helper)
1184 GNUNET_free_non_null (cp->port);
1185 GNUNET_free_non_null (cp->dst);
1192 msg = GNUNET_TESTBED_create_helper_init_msg_ (controller_ip, cfg);
1193 cp->msg = &msg->header;
1195 GNUNET_HELPER_send (cp->helper, &msg->header, GNUNET_NO, &clear_msg, cp);
1196 if (NULL == cp->shandle)
1199 GNUNET_TESTBED_controller_stop (cp);
1207 * Stop the controller process (also will terminate all peers and controllers
1208 * dependent on this controller). This function blocks until the testbed has
1209 * been fully terminated (!).
1211 * @param cproc the controller process handle
1214 GNUNET_TESTBED_controller_stop (struct GNUNET_TESTBED_ControllerProc *cproc)
1216 if (NULL != cproc->shandle)
1217 GNUNET_HELPER_send_cancel (cproc->shandle);
1218 if (NULL != cproc->helper)
1219 GNUNET_HELPER_stop (cproc->helper);
1220 if (NULL != cproc->cfg)
1221 GNUNET_CONFIGURATION_destroy (cproc->cfg);
1222 GNUNET_free_non_null (cproc->port);
1223 GNUNET_free_non_null (cproc->dst);
1224 GNUNET_free (cproc);
1229 * Start a controller process using the given configuration at the
1232 * @param cfg configuration to use
1233 * @param host host to run the controller on; This should be the same host if
1234 * the controller was previously started with
1235 * GNUNET_TESTBED_controller_start; NULL for localhost
1236 * @param event_mask bit mask with set of events to call 'cc' for;
1237 * or-ed values of "1LL" shifted by the
1238 * respective 'enum GNUNET_TESTBED_EventType'
1239 * (i.e. "(1LL << GNUNET_TESTBED_ET_CONNECT) | ...")
1240 * @param cc controller callback to invoke on events
1241 * @param cc_cls closure for cc
1242 * @return handle to the controller
1244 struct GNUNET_TESTBED_Controller *
1245 GNUNET_TESTBED_controller_connect (const struct GNUNET_CONFIGURATION_Handle
1246 *cfg, struct GNUNET_TESTBED_Host *host,
1247 uint64_t event_mask,
1248 GNUNET_TESTBED_ControllerCallback cc,
1251 struct GNUNET_TESTBED_Controller *controller;
1252 struct GNUNET_TESTBED_InitMessage *msg;
1253 const char *controller_hostname;
1254 unsigned long long max_parallel_operations;
1255 unsigned long long max_parallel_service_connections;
1258 GNUNET_CONFIGURATION_get_value_number (cfg, "testbed",
1259 "MAX_PARALLEL_OPERATIONS",
1260 &max_parallel_operations))
1266 GNUNET_CONFIGURATION_get_value_number (cfg, "testbed",
1267 "MAX_PARALLEL_SERVICE_CONNECTIONS",
1268 &max_parallel_service_connections))
1273 controller = GNUNET_malloc (sizeof (struct GNUNET_TESTBED_Controller));
1274 controller->cc = cc;
1275 controller->cc_cls = cc_cls;
1276 controller->event_mask = event_mask;
1277 controller->cfg = GNUNET_CONFIGURATION_dup (cfg);
1278 controller->client = GNUNET_CLIENT_connect ("testbed", controller->cfg);
1279 if (NULL == controller->client)
1281 GNUNET_TESTBED_controller_disconnect (controller);
1286 host = GNUNET_TESTBED_host_create_by_id_ (0);
1287 if (NULL == host) /* If the above host create fails */
1289 LOG (GNUNET_ERROR_TYPE_WARNING,
1290 "Treating NULL host as localhost. Multiple references to localhost "
1291 "may break when localhost freed before calling disconnect \n");
1292 host = GNUNET_TESTBED_host_lookup_by_id_ (0);
1296 controller->aux_host = GNUNET_YES;
1299 GNUNET_assert (NULL != host);
1300 GNUNET_TESTBED_mark_host_registered_at_ (host, controller);
1301 controller->host = host;
1302 controller->opq_parallel_operations =
1303 GNUNET_TESTBED_operation_queue_create_ ((unsigned int)
1304 max_parallel_operations);
1305 controller->opq_parallel_service_connections =
1306 GNUNET_TESTBED_operation_queue_create_ ((unsigned int)
1307 max_parallel_service_connections);
1308 controller_hostname = GNUNET_TESTBED_host_get_hostname_ (host);
1309 if (NULL == controller_hostname)
1310 controller_hostname = "127.0.0.1";
1312 GNUNET_malloc (sizeof (struct GNUNET_TESTBED_InitMessage) +
1313 strlen (controller_hostname) + 1);
1314 msg->header.type = htons (GNUNET_MESSAGE_TYPE_TESTBED_INIT);
1316 htons (sizeof (struct GNUNET_TESTBED_InitMessage) +
1317 strlen (controller_hostname) + 1);
1318 msg->host_id = htonl (GNUNET_TESTBED_host_get_id_ (host));
1319 msg->event_mask = GNUNET_htonll (controller->event_mask);
1320 strcpy ((char *) &msg[1], controller_hostname);
1321 GNUNET_TESTBED_queue_message_ (controller,
1322 (struct GNUNET_MessageHeader *) msg);
1328 * Configure shared services at a controller. Using this function,
1329 * you can specify that certain services (such as "resolver")
1330 * should not be run for each peer but instead be shared
1331 * across N peers on the specified host. This function
1332 * must be called before any peers are created at the host.
1334 * @param controller controller to configure
1335 * @param service_name name of the service to share
1336 * @param num_peers number of peers that should share one instance
1337 * of the specified service (1 for no sharing is the default),
1338 * use 0 to disable the service
1341 GNUNET_TESTBED_controller_configure_sharing (struct GNUNET_TESTBED_Controller
1343 const char *service_name,
1346 struct GNUNET_TESTBED_ConfigureSharedServiceMessage *msg;
1347 uint16_t service_name_size;
1350 service_name_size = strlen (service_name) + 1;
1352 sizeof (struct GNUNET_TESTBED_ConfigureSharedServiceMessage) +
1354 msg = GNUNET_malloc (msg_size);
1355 msg->header.size = htons (msg_size);
1356 msg->header.type = htons (GNUNET_MESSAGE_TYPE_TESTBED_SERVICESHARE);
1357 msg->host_id = htonl (GNUNET_TESTBED_host_get_id_ (controller->host));
1358 msg->num_peers = htonl (num_peers);
1359 memcpy (&msg[1], service_name, service_name_size);
1360 GNUNET_TESTBED_queue_message_ (controller,
1361 (struct GNUNET_MessageHeader *) msg);
1366 * disconnects from the controller.
1368 * @param controller handle to controller to stop
1371 GNUNET_TESTBED_controller_disconnect (struct GNUNET_TESTBED_Controller
1374 struct MessageQueue *mq_entry;
1376 if (NULL != controller->th)
1377 GNUNET_CLIENT_notify_transmit_ready_cancel (controller->th);
1378 /* Clear the message queue */
1379 while (NULL != (mq_entry = controller->mq_head))
1381 GNUNET_CONTAINER_DLL_remove (controller->mq_head, controller->mq_tail,
1383 GNUNET_free (mq_entry->msg);
1384 GNUNET_free (mq_entry);
1386 if (NULL != controller->client)
1387 GNUNET_CLIENT_disconnect (controller->client);
1388 GNUNET_CONFIGURATION_destroy (controller->cfg);
1389 if (GNUNET_YES == controller->aux_host)
1390 GNUNET_TESTBED_host_destroy (controller->host);
1391 GNUNET_TESTBED_operation_queue_destroy_ (controller->opq_parallel_operations);
1392 GNUNET_TESTBED_operation_queue_destroy_
1393 (controller->opq_parallel_service_connections);
1394 GNUNET_free (controller);
1399 * Register a host with the controller
1401 * @param controller the controller handle
1402 * @param host the host to register
1403 * @param cc the completion callback to call to inform the status of
1404 * registration. After calling this callback the registration handle
1405 * will be invalid. Cannot be NULL.
1406 * @param cc_cls the closure for the cc
1407 * @return handle to the host registration which can be used to cancel the
1410 struct GNUNET_TESTBED_HostRegistrationHandle *
1411 GNUNET_TESTBED_register_host (struct GNUNET_TESTBED_Controller *controller,
1412 struct GNUNET_TESTBED_Host *host,
1413 GNUNET_TESTBED_HostRegistrationCompletion cc,
1416 struct GNUNET_TESTBED_HostRegistrationHandle *rh;
1417 struct GNUNET_TESTBED_AddHostMessage *msg;
1418 const char *username;
1419 const char *hostname;
1421 uint16_t user_name_length;
1423 if (NULL != controller->rh)
1425 hostname = GNUNET_TESTBED_host_get_hostname_ (host);
1426 if (GNUNET_YES == GNUNET_TESTBED_is_host_registered_ (host, controller))
1428 LOG (GNUNET_ERROR_TYPE_WARNING, "Host hostname: %s already registered\n",
1429 (NULL == hostname) ? "localhost" : hostname);
1432 rh = GNUNET_malloc (sizeof (struct GNUNET_TESTBED_HostRegistrationHandle));
1435 GNUNET_assert (NULL != cc);
1437 rh->cc_cls = cc_cls;
1438 controller->rh = rh;
1439 username = GNUNET_TESTBED_host_get_username_ (host);
1440 msg_size = (sizeof (struct GNUNET_TESTBED_AddHostMessage));
1441 user_name_length = 0;
1442 if (NULL != username)
1444 user_name_length = strlen (username) + 1;
1445 msg_size += user_name_length;
1447 /* FIXME: what happens when hostname is NULL? localhost */
1448 GNUNET_assert (NULL != hostname);
1449 msg_size += strlen (hostname) + 1;
1450 msg = GNUNET_malloc (msg_size);
1451 msg->header.size = htons (msg_size);
1452 msg->header.type = htons (GNUNET_MESSAGE_TYPE_TESTBED_ADDHOST);
1453 msg->host_id = htonl (GNUNET_TESTBED_host_get_id_ (host));
1454 msg->ssh_port = htons (GNUNET_TESTBED_host_get_ssh_port_ (host));
1455 msg->user_name_length = htons (user_name_length);
1456 if (NULL != username)
1457 memcpy (&msg[1], username, user_name_length);
1458 strcpy (((void *) &msg[1]) + user_name_length, hostname);
1459 GNUNET_TESTBED_queue_message_ (controller,
1460 (struct GNUNET_MessageHeader *) msg);
1466 * Cancel the pending registration. Note that if the registration message is
1467 * already sent to the service the cancellation has only the effect that the
1468 * registration completion callback for the registration is never called.
1470 * @param handle the registration handle to cancel
1473 GNUNET_TESTBED_cancel_registration (struct GNUNET_TESTBED_HostRegistrationHandle
1476 if (handle != handle->c->rh)
1481 handle->c->rh = NULL;
1482 GNUNET_free (handle);
1487 * Same as the GNUNET_TESTBED_controller_link, however expects configuration in
1488 * serialized and compressed
1490 * @param master handle to the master controller who creates the association
1491 * @param delegated_host requests to which host should be delegated; cannot be NULL
1492 * @param slave_host which host is used to run the slave controller; use NULL to
1493 * make the master controller connect to the delegated host
1494 * @param sxcfg serialized and compressed configuration
1495 * @param sxcfg_size the size scfg
1496 * @param scfg_size the size of uncompressed serialized configuration
1497 * @param is_subordinate GNUNET_YES if the controller at delegated_host should
1498 * be started by the master controller; GNUNET_NO if we are just
1499 * allowed to use the slave via TCP/IP
1501 struct GNUNET_TESTBED_Operation *
1502 GNUNET_TESTBED_controller_link_2 (struct GNUNET_TESTBED_Controller *master,
1503 struct GNUNET_TESTBED_Host *delegated_host,
1504 struct GNUNET_TESTBED_Host *slave_host,
1505 const char *sxcfg, size_t sxcfg_size,
1506 size_t scfg_size, int is_subordinate)
1508 struct OperationContext *opc;
1509 struct GNUNET_TESTBED_ControllerLinkMessage *msg;
1512 GNUNET_assert (GNUNET_YES ==
1513 GNUNET_TESTBED_is_host_registered_ (delegated_host, master));
1514 if ((NULL != slave_host) && (0 != GNUNET_TESTBED_host_get_id_ (slave_host)))
1515 GNUNET_assert (GNUNET_YES ==
1516 GNUNET_TESTBED_is_host_registered_ (slave_host, master));
1517 msg_size = sxcfg_size + sizeof (struct GNUNET_TESTBED_ControllerLinkMessage);
1518 msg = GNUNET_malloc (msg_size);
1519 msg->header.type = htons (GNUNET_MESSAGE_TYPE_TESTBED_LCONTROLLERS);
1520 msg->header.size = htons (msg_size);
1521 msg->delegated_host_id = htonl (GNUNET_TESTBED_host_get_id_ (delegated_host));
1522 msg->slave_host_id =
1523 htonl (GNUNET_TESTBED_host_get_id_
1524 ((NULL != slave_host) ? slave_host : master->host));
1525 msg->config_size = htons ((uint16_t) scfg_size);
1526 msg->is_subordinate = (GNUNET_YES == is_subordinate) ? 1 : 0;
1527 memcpy (&msg[1], sxcfg, sxcfg_size);
1528 opc = GNUNET_malloc (sizeof (struct OperationContext));
1531 opc->type = OP_LINK_CONTROLLERS;
1532 opc->id = master->operation_counter++;
1533 opc->state = OPC_STATE_INIT;
1534 msg->operation_id = GNUNET_htonll (opc->id);
1536 GNUNET_TESTBED_operation_create_ (opc, &opstart_link_controllers,
1537 &oprelease_link_controllers);
1538 GNUNET_TESTBED_operation_queue_insert_ (master->opq_parallel_operations,
1545 * Compresses given configuration using zlib compress
1547 * @param config the serialized configuration
1548 * @param size the size of config
1549 * @param xconfig will be set to the compressed configuration (memory is fresly
1551 * @return the size of the xconfig
1554 GNUNET_TESTBED_compress_config_ (const char *config, size_t size,
1559 xsize = compressBound ((uLong) size);
1560 *xconfig = GNUNET_malloc (xsize);
1561 GNUNET_assert (Z_OK ==
1562 compress2 ((Bytef *) * xconfig, (uLongf *) & xsize,
1563 (const Bytef *) config, (uLongf) size,
1570 * Create a link from slave controller to delegated controller. Whenever the
1571 * master controller is asked to start a peer at the delegated controller the
1572 * request will be routed towards slave controller (if a route exists). The
1573 * slave controller will then route it to the delegated controller. The
1574 * configuration of the slave controller is given and to be used to either
1575 * create the slave controller or to connect to an existing slave controller
1576 * process. 'is_subordinate' specifies if the given slave controller should be
1577 * started and managed by the master controller, or if the slave already has a
1578 * master and this is just a secondary master that is also allowed to use the
1581 * @param master handle to the master controller who creates the association
1582 * @param delegated_host requests to which host should be delegated
1583 * @param slave_host which host is used to run the slave controller
1584 * @param slave_cfg configuration to use for the slave controller
1585 * @param is_subordinate GNUNET_YES if the slave should be started (and stopped)
1586 * by the master controller; GNUNET_NO if we are just
1587 * allowed to use the slave via TCP/IP
1588 * @return the operation handle
1590 struct GNUNET_TESTBED_Operation *
1591 GNUNET_TESTBED_controller_link (struct GNUNET_TESTBED_Controller *master,
1592 struct GNUNET_TESTBED_Host *delegated_host,
1593 struct GNUNET_TESTBED_Host *slave_host,
1594 const struct GNUNET_CONFIGURATION_Handle
1595 *slave_cfg, int is_subordinate)
1597 struct GNUNET_TESTBED_Operation *op;
1603 GNUNET_assert (GNUNET_YES ==
1604 GNUNET_TESTBED_is_host_registered_ (delegated_host, master));
1605 if ((NULL != slave_host) && (0 != GNUNET_TESTBED_host_get_id_ (slave_host)))
1606 GNUNET_assert (GNUNET_YES ==
1607 GNUNET_TESTBED_is_host_registered_ (slave_host, master));
1608 config = GNUNET_CONFIGURATION_serialize (slave_cfg, &config_size);
1609 cc_size = GNUNET_TESTBED_compress_config_ (config, config_size, &cconfig);
1610 GNUNET_free (config);
1611 GNUNET_assert ((UINT16_MAX - sizeof (struct GNUNET_TESTBED_ControllerLinkMessage)) >= cc_size); /* Configuration doesn't fit in 1 message */
1612 op = GNUNET_TESTBED_controller_link_2 (master, delegated_host, slave_host,
1613 (const char *) cconfig, cc_size,
1614 config_size, is_subordinate);
1615 GNUNET_free (cconfig);
1621 * Ask the testbed controller to write the current overlay topology to
1622 * a file. Naturally, the file will only contain a snapshot as the
1623 * topology may evolve all the time.
1625 * @param controller overlay controller to inspect
1626 * @param filename name of the file the topology should
1630 GNUNET_TESTBED_overlay_write_topology_to_file (struct GNUNET_TESTBED_Controller
1632 const char *filename)
1639 * Creates a helper initialization message. This function is here because we
1640 * want to use this in testing
1642 * @param cname the ip address of the controlling host
1643 * @param cfg the configuration that has to used to start the testbed service
1645 * @return the initialization message
1647 struct GNUNET_TESTBED_HelperInit *
1648 GNUNET_TESTBED_create_helper_init_msg_ (const char *cname,
1649 const struct GNUNET_CONFIGURATION_Handle
1652 struct GNUNET_TESTBED_HelperInit *msg;
1656 size_t xconfig_size;
1660 config = GNUNET_CONFIGURATION_serialize (cfg, &config_size);
1661 GNUNET_assert (NULL != config);
1663 GNUNET_TESTBED_compress_config_ (config, config_size, &xconfig);
1664 GNUNET_free (config);
1665 cname_len = strlen (cname);
1667 xconfig_size + cname_len + 1 + sizeof (struct GNUNET_TESTBED_HelperInit);
1668 msg = GNUNET_realloc (xconfig, msg_size);
1669 (void) memmove (((void *) &msg[1]) + cname_len + 1, msg, xconfig_size);
1670 msg->header.size = htons (msg_size);
1671 msg->header.type = htons (GNUNET_MESSAGE_TYPE_TESTBED_HELPER_INIT);
1672 msg->cname_size = htons (cname_len);
1673 msg->config_size = htons (config_size);
1674 (void) strcpy ((char *) &msg[1], cname);
1680 * Cancel a pending operation. Releases all resources
1681 * of the operation and will ensure that no event
1682 * is generated for the operation. Does NOT guarantee
1683 * that the operation will be fully undone (or that
1684 * nothing ever happened).
1686 * @param operation operation to cancel
1689 GNUNET_TESTBED_operation_cancel (struct GNUNET_TESTBED_Operation *operation)
1691 GNUNET_TESTBED_operation_done (operation);
1696 * Signal that the information from an operation has been fully
1697 * processed. This function MUST be called for each event
1698 * of type 'operation_finished' to fully remove the operation
1699 * from the operation queue. After calling this function, the
1700 * 'op_result' becomes invalid (!).
1702 * @param operation operation to signal completion for
1705 GNUNET_TESTBED_operation_done (struct GNUNET_TESTBED_Operation *operation)
1707 switch (operation->type)
1709 case OP_PEER_CREATE:
1710 case OP_PEER_DESTROY:
1714 case OP_OVERLAY_CONNECT:
1715 case OP_LINK_CONTROLLERS:
1716 GNUNET_TESTBED_operation_release_ (operation);
1726 * Generates configuration by parsing Peer configuration information reply message
1728 * @param msg the peer configuration information message
1729 * @return handle to the parsed configuration
1731 struct GNUNET_CONFIGURATION_Handle *
1732 GNUNET_TESTBED_get_config_from_peerinfo_msg_ (const struct
1733 GNUNET_TESTBED_PeerConfigurationInformationMessage
1736 struct GNUNET_CONFIGURATION_Handle *cfg;
1742 config_size = (uLong) ntohs (msg->config_size);
1743 config = GNUNET_malloc (config_size);
1744 msize = ntohs (msg->header.size);
1745 msize -= sizeof (struct GNUNET_TESTBED_PeerConfigurationInformationMessage);
1748 uncompress ((Bytef *) config, &config_size, (const Bytef *) &msg[1],
1751 cfg = GNUNET_CONFIGURATION_create ();
1752 GNUNET_assert (GNUNET_OK ==
1753 GNUNET_CONFIGURATION_deserialize (cfg, config,
1754 (size_t) config_size,
1756 GNUNET_free (config);
1760 /* end of testbed_api.c */