2 This file is part of GNUnet.
3 (C) 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 2, 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.
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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/gnunet-service-testbed.c
23 * @brief implementation of the TESTBED service
24 * @author Sree Harsha Totakura
28 #include "gnunet_service_lib.h"
29 #include "gnunet_server_lib.h"
30 #include "gnunet_transport_service.h"
31 #include "gnunet_core_service.h"
32 #include "gnunet_hello_lib.h"
35 #include "gnunet_testbed_service.h"
37 #include "testbed_api.h"
38 #include "testbed_api_hosts.h"
39 #include "gnunet_testing_lib-new.h"
44 #define LOG(kind,...) \
45 GNUNET_log (kind, __VA_ARGS__)
50 #define LOG_DEBUG(...) \
51 LOG (GNUNET_ERROR_TYPE_DEBUG, __VA_ARGS__)
54 * By how much should the arrays lists grow
56 #define LIST_GROW_STEP 10
59 * Default timeout for operations which may take some time
61 #define TIMEOUT GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 30)
64 * The main context information associated with the client which started us
69 * The client handle associated with this context
71 struct GNUNET_SERVER_Client *client;
74 * The network address of the master controller
79 * The TESTING system handle for starting peers locally
81 struct GNUNET_TESTING_System *system;
84 * Event mask of event to be responded in this context
89 * Our host id according to this context
96 * The message queue for sending messages to clients
101 * The message to be sent
103 struct GNUNET_MessageHeader *msg;
106 * The client to send the message to
108 struct GNUNET_SERVER_Client *client;
111 * next pointer for DLL
113 struct MessageQueue *next;
116 * prev pointer for DLL
118 struct MessageQueue *prev;
123 * The structure for identifying a shared service
128 * The name of the shared service
133 * Number of shared peers per instance of the shared service
138 * Number of peers currently sharing the service
140 uint32_t num_sharing;
155 * The host destination is reachable thru
162 * Structure representing a connected(directly-linked) controller
167 * The controller process handle if we had started the controller
169 struct GNUNET_TESTBED_ControllerProc *controller_proc;
172 * The controller handle
174 struct GNUNET_TESTBED_Controller *controller;
177 * The id of the host this controller is running on
184 * States of LCFContext
189 * The Context has been initialized; Nothing has been done on it
194 * Delegated host has been registered at the forwarding controller
196 DELEGATED_HOST_REGISTERED,
199 * The slave host has been registred at the forwarding controller
201 SLAVE_HOST_REGISTERED,
204 * The context has been finished (may have error)
212 * Link controllers request forwarding context
217 * The gateway which will pass the link message to delegated host
219 struct Slave *gateway;
222 * The controller link message that has to be forwarded to
224 struct GNUNET_TESTBED_ControllerLinkMessage *msg;
227 * The client which has asked to perform this operation
229 struct GNUNET_SERVER_Client *client;
232 * The host registration handle while registered hosts in this context
234 struct GNUNET_TESTBED_HostRegistrationHandle *rhandle;
237 * The id of the operation which created this context
239 uint64_t operation_id;
242 * The state of this context
244 enum LCFContextState state;
249 uint32_t delegated_host_id;
254 uint32_t slave_host_id;
260 * Structure of a queue entry in LCFContext request queue
262 struct LCFContextQueue
267 struct LCFContext *lcf;
272 struct LCFContextQueue *next;
277 struct LCFContextQueue *prev;
282 * A locally started peer
291 * The peer handle from testing API
293 struct GNUNET_TESTING_Peer *peer;
296 * The modified (by GNUNET_TESTING_peer_configure) configuration this
297 * peer is configured with
299 struct GNUNET_CONFIGURATION_Handle *cfg;
306 * The controller this peer is started through
308 struct GNUNET_TESTBED_Controller *controller;
315 * Our local reference id for this peer
320 * Is this peer local created?
328 * State information for overlay connect context
338 * Peer 1 has connected to peer0
340 OCC_STATE_PEER0_SUCCESS,
343 * Peer 2 has connected to peer1
345 OCC_STATE_PEER1_SUCCESS,
351 * Context information for connecting 2 peers in overlay
353 struct OverlayConnectContext
356 * The client which has requested for overlay connection
358 struct GNUNET_SERVER_Client *client;
361 * the peer which has to connect to the other peer
368 struct Peer *other_peer;
371 * Transport handle of the first peer to offer second peer's HELLO
373 struct GNUNET_TRANSPORT_Handle *p1th;
376 * Transport handle of other peer to get its HELLO
378 struct GNUNET_TRANSPORT_Handle *p2th;
381 * Core handles of the peer which has to connect to other peer
383 struct GNUNET_CORE_Handle *ch;
386 * HELLO of the other peer
388 struct GNUNET_MessageHeader *hello;
391 * Get hello handle for the other peer
393 struct GNUNET_TRANSPORT_GetHelloHandle *ghh;
396 * The error message we send if this overlay connect operation has timed out
401 * The peer identity of the first peer
403 struct GNUNET_PeerIdentity peer_identity;
406 * The peer identity of the other peer
408 struct GNUNET_PeerIdentity other_peer_identity;
411 * The id of the operation responsible for creating this context
416 * The id of the task for sending HELLO of peer 2 to peer 1 and ask peer 1 to
419 GNUNET_SCHEDULER_TaskIdentifier send_hello_task;
422 * The id of the overlay connect timeout task
424 GNUNET_SCHEDULER_TaskIdentifier timeout_task;
427 * State information for determining whose HELLOs have been successfully
436 * Context information for operations forwarded to subcontrollers
438 struct ForwardedOperationContext
441 * The generated operation context
443 struct OperationContext *opc;
446 * The client to which we have to reply
448 struct GNUNET_SERVER_Client *client;
456 * Task ID for the timeout task
458 GNUNET_SCHEDULER_TaskIdentifier timeout_task;
461 * The id of the operation that has been forwarded
463 uint64_t operation_id;
469 * Context information used while linking controllers
471 struct LinkControllersContext
474 * The client which initiated the link controller operation
476 struct GNUNET_SERVER_Client *client;
479 * The ID of the operation
481 uint64_t operation_id;
484 * Pointer to the slave handle if we are directly starting/connecting to the controller
492 * The master context; generated with the first INIT message
494 static struct Context *master_context;
501 * Current Transmit Handle; NULL if no notify transmit exists currently
503 static struct GNUNET_SERVER_TransmitHandle *transmit_handle;
510 * The head for the LCF queue
512 static struct LCFContextQueue *lcfq_head;
515 * The tail for the LCF queue
517 static struct LCFContextQueue *lcfq_tail;
520 * The message queue head
522 static struct MessageQueue *mq_head;
525 * The message queue tail
527 static struct MessageQueue *mq_tail;
532 static struct GNUNET_TESTBED_Host **host_list;
537 static struct Route **route_list;
540 * A list of directly linked neighbours
542 static struct Slave **slave_list;
545 * A list of peers we own locally
547 static struct Peer **peer_list;
550 * The hashmap of shared services
552 static struct GNUNET_CONTAINER_MultiHashMap *ss_map;
555 * The size of the host list
557 static uint32_t host_list_size;
560 * The size of the route list
562 static uint32_t route_list_size;
565 * The size of directly linked neighbours list
567 static uint32_t slave_list_size;
570 * The size of the peer list
572 static uint32_t peer_list_size;
579 * The lcf_task handle
581 static GNUNET_SCHEDULER_TaskIdentifier lcf_proc_task_id;
584 * The shutdown task handle
586 static GNUNET_SCHEDULER_TaskIdentifier shutdown_task_id;
590 * Function called to notify a client about the connection begin ready to queue
591 * more data. "buf" will be NULL and "size" zero if the connection was closed
592 * for writing in the meantime.
595 * @param size number of bytes available in buf
596 * @param buf where the callee should write the message
597 * @return number of bytes written to buf
600 transmit_ready_notify (void *cls, size_t size, void *buf)
602 struct MessageQueue *mq_entry;
604 transmit_handle = NULL;
606 GNUNET_assert (NULL != mq_entry);
609 GNUNET_assert (ntohs (mq_entry->msg->size) <= size);
610 size = ntohs (mq_entry->msg->size);
611 memcpy (buf, mq_entry->msg, size);
612 GNUNET_free (mq_entry->msg);
613 GNUNET_CONTAINER_DLL_remove (mq_head, mq_tail, mq_entry);
614 GNUNET_free (mq_entry);
616 if (NULL != mq_entry)
618 GNUNET_SERVER_notify_transmit_ready (mq_entry->client,
619 ntohs (mq_entry->msg->size),
620 GNUNET_TIME_UNIT_FOREVER_REL,
621 &transmit_ready_notify, NULL);
627 * Queues a message in send queue for sending to the service
629 * @param client the client to whom the queued message has to be sent
630 * @param msg the message to queue
633 queue_message (struct GNUNET_SERVER_Client *client,
634 struct GNUNET_MessageHeader *msg)
636 struct MessageQueue *mq_entry;
640 type = ntohs (msg->type);
641 size = ntohs (msg->size);
642 GNUNET_assert ((GNUNET_MESSAGE_TYPE_TESTBED_INIT <= type) &&
643 (GNUNET_MESSAGE_TYPE_TESTBED_MAX > type));
644 mq_entry = GNUNET_malloc (sizeof (struct MessageQueue));
646 mq_entry->client = client;
647 LOG_DEBUG ( "Queueing message of type %u, size %u for sending\n", type,
649 GNUNET_CONTAINER_DLL_insert_tail (mq_head, mq_tail, mq_entry);
650 if (NULL == transmit_handle)
652 GNUNET_SERVER_notify_transmit_ready (client, size,
653 GNUNET_TIME_UNIT_FOREVER_REL,
654 &transmit_ready_notify, NULL);
659 * Similar to GNUNET_realloc; however clears tail part of newly allocated memory
661 * @param ptr the memory block to realloc
662 * @param size the size of ptr
663 * @param new_size the size to which ptr has to be realloc'ed
664 * @return the newly reallocated memory block
667 TESTBED_realloc (void *ptr, size_t size, size_t new_size)
669 ptr = GNUNET_realloc (ptr, new_size);
671 ptr = memset (ptr + size, 0, new_size - size);
677 * Function to add a host to the current list of known hosts
679 * @param host the host to add
680 * @return GNUNET_OK on success; GNUNET_SYSERR on failure due to host-id
684 host_list_add (struct GNUNET_TESTBED_Host *host)
688 host_id = GNUNET_TESTBED_host_get_id_ (host);
689 if (host_list_size <= host_id)
692 TESTBED_realloc (host_list,
693 sizeof (struct GNUNET_TESTBED_Host *) * host_list_size,
694 sizeof (struct GNUNET_TESTBED_Host *) *
695 (host_list_size + LIST_GROW_STEP));
696 host_list_size += LIST_GROW_STEP;
698 if (NULL != host_list[host_id])
700 LOG_DEBUG ("A host with id: %u already exists\n", host_id);
701 return GNUNET_SYSERR;
703 host_list[host_id] = host;
709 * Adds a route to the route list
711 * @param route the route to add
714 route_list_add (struct Route *route)
716 if (route->dest >= route_list_size)
719 TESTBED_realloc (route_list,
720 sizeof (struct Route *) * route_list_size,
721 sizeof (struct Route *) *
722 (route_list_size + LIST_GROW_STEP));
723 route_list_size += LIST_GROW_STEP;
725 GNUNET_assert (NULL == route_list[route->dest]);
726 route_list[route->dest] = route;
731 * Adds a slave to the slave array
733 * @param slave the slave controller to add
736 slave_list_add (struct Slave *slave)
738 if (slave->host_id >= slave_list_size)
740 slave_list = TESTBED_realloc (slave_list,
741 sizeof (struct Slave *) *slave_list_size,
742 sizeof (struct Slave *) *
743 (slave_list_size + LIST_GROW_STEP));
744 slave_list_size += LIST_GROW_STEP;
746 GNUNET_assert (NULL == slave_list[slave->host_id]);
747 slave_list[slave->host_id] = slave;
752 * Adds a peer to the peer array
754 * @param peer the peer to add
757 peer_list_add (struct Peer *peer)
761 orig_size = peer_list_size;
762 if (peer->id >= peer_list_size)
764 while (peer->id >= peer_list_size)
765 peer_list_size += LIST_GROW_STEP;
766 peer_list = TESTBED_realloc (peer_list,
767 sizeof (struct Peer *) * orig_size,
768 sizeof (struct Peer *) * peer_list_size);
770 GNUNET_assert (NULL == peer_list[peer->id]);
771 peer_list[peer->id] = peer;
776 * Removes a the give peer from the peer array
778 * @param peer the peer to be removed
781 peer_list_remove (struct Peer *peer)
786 peer_list[peer->id] = NULL;
787 orig_size = peer_list_size;
788 while (peer_list_size >= LIST_GROW_STEP)
790 for (id = peer_list_size - 1;
791 (id >= peer_list_size - LIST_GROW_STEP) && (id != UINT32_MAX); id--)
792 if (NULL != peer_list[id])
794 if (id != ((peer_list_size - LIST_GROW_STEP) - 1))
796 peer_list_size -= LIST_GROW_STEP;
798 if (orig_size == peer_list_size)
800 peer_list = GNUNET_realloc (peer_list, sizeof (struct Peer *)
806 * Finds the route with directly connected host as destination through which
807 * the destination host can be reached
809 * @param host_id the id of the destination host
810 * @return the route with directly connected destination host; NULL if no route
813 static struct Route *
814 find_dest_route (uint32_t host_id)
818 while(NULL != (route = route_list[host_id]))
820 if (route->thru == master_context->host_id)
822 host_id = route->thru;
829 * Routes message to a host given its host_id
831 * @param host_id the id of the destination host
832 * @param msg the message to be routed
835 route_message (uint32_t host_id, const struct GNUNET_MessageHeader *msg)
842 * Send operation failure message to client
844 * @param client the client to which the failure message has to be sent to
845 * @param operation_id the id of the failed operation
846 * @param emsg the error message; can be NULL
849 send_operation_fail_msg (struct GNUNET_SERVER_Client *client,
850 uint64_t operation_id,
853 struct GNUNET_TESTBED_OperationFailureEventMessage *msg;
857 msize = sizeof (struct GNUNET_TESTBED_OperationFailureEventMessage);
858 emsg_len = (NULL == emsg) ? 0 : strlen (emsg) + 1;
860 msg = GNUNET_malloc (msize);
861 msg->header.size = htons (msize);
862 msg->header.type = htons (GNUNET_MESSAGE_TYPE_TESTBED_OPERATIONEVENT);
863 msg->event_type = htonl (GNUNET_TESTBED_ET_OPERATION_FINISHED);
864 msg->operation_id = GNUNET_htonll (operation_id);
866 memcpy (&msg[1], emsg, emsg_len);
867 queue_message (client, &msg->header);
872 * Function to send generic operation success message to given client
874 * @param client the client to send the message to
875 * @param operation_id the id of the operation which was successful
878 send_operation_success_msg (struct GNUNET_SERVER_Client *client,
879 uint64_t operation_id)
881 struct GNUNET_TESTBED_GenericOperationSuccessEventMessage *msg;
884 msize = sizeof (struct GNUNET_TESTBED_GenericOperationSuccessEventMessage);
885 msg = GNUNET_malloc (msize);
886 msg->header.size = htons (msize);
887 msg->header.type = htons (GNUNET_MESSAGE_TYPE_TESTBED_GENERICOPSUCCESS);
888 msg->operation_id = GNUNET_htonll (operation_id);
889 msg->event_type = htonl (GNUNET_TESTBED_ET_OPERATION_FINISHED);
890 queue_message (client, &msg->header);
895 * The Link Controller forwarding task
897 * @param cls the LCFContext
898 * @param tc the Task context from scheduler
901 lcf_proc_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc);
905 * Completion callback for host registrations while forwarding Link Controller messages
907 * @param cls the LCFContext
908 * @param emsg the error message; NULL if host registration is successful
911 lcf_proc_cc (void *cls, const char *emsg)
913 struct LCFContext *lcf = cls;
916 GNUNET_assert (GNUNET_SCHEDULER_NO_TASK == lcf_proc_task_id);
921 goto registration_error;
922 lcf->state = DELEGATED_HOST_REGISTERED;
923 lcf_proc_task_id = GNUNET_SCHEDULER_add_now (&lcf_proc_task, lcf);
925 case DELEGATED_HOST_REGISTERED:
927 goto registration_error;
928 lcf->state = SLAVE_HOST_REGISTERED;
929 lcf_proc_task_id = GNUNET_SCHEDULER_add_now (&lcf_proc_task, lcf);
932 GNUNET_assert (0); /* Shouldn't reach here */
937 LOG (GNUNET_ERROR_TYPE_WARNING,
938 "Host registration failed with message: %s\n", emsg);
939 lcf->state = FINISHED;
940 lcf_proc_task_id = GNUNET_SCHEDULER_add_now (&lcf_proc_task, lcf);
945 * Callback to be called when forwarded link controllers operation is
946 * successfull. We have to relay the reply msg back to the client
948 * @param cls ForwardedOperationContext
949 * @param msg the peer create success message
952 forwarded_operation_reply_relay (void *cls,
953 const struct GNUNET_MessageHeader *msg)
955 struct ForwardedOperationContext *fopc = cls;
956 struct GNUNET_MessageHeader *dup_msg;
959 msize = ntohs (msg->size);
960 dup_msg = GNUNET_malloc (msize);
961 (void) memcpy (dup_msg, msg, msize);
962 queue_message (fopc->client, dup_msg);
963 GNUNET_SERVER_client_drop (fopc->client);
964 GNUNET_SCHEDULER_cancel (fopc->timeout_task);
970 * Task to free resources when forwarded link controllers has been timedout
972 * @param cls the ForwardedOperationContext
973 * @param tc the task context from scheduler
976 forwarded_operation_timeout (void *cls,
977 const struct GNUNET_SCHEDULER_TaskContext
980 struct ForwardedOperationContext *fopc = cls;
982 GNUNET_TESTBED_forward_operation_msg_cancel_ (fopc->opc);
983 send_operation_fail_msg (fopc->client, fopc->operation_id, "Timeout");
984 GNUNET_SERVER_client_drop (fopc->client);
990 * The Link Controller forwarding task
992 * @param cls the LCFContext
993 * @param tc the Task context from scheduler
996 lcf_proc_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
998 struct LCFContext *lcf = cls;
999 struct LCFContextQueue *lcfq;
1000 struct ForwardedOperationContext *fopc;
1002 lcf_proc_task_id = GNUNET_SCHEDULER_NO_TASK;
1007 GNUNET_TESTBED_is_host_registered_ (host_list[lcf->delegated_host_id],
1008 lcf->gateway->controller))
1011 GNUNET_TESTBED_register_host (lcf->gateway->controller,
1012 host_list[lcf->delegated_host_id],
1017 lcf->state = DELEGATED_HOST_REGISTERED;
1018 lcf_proc_task_id = GNUNET_SCHEDULER_add_now (&lcf_proc_task, lcf);
1021 case DELEGATED_HOST_REGISTERED:
1023 GNUNET_TESTBED_is_host_registered_ (host_list[lcf->slave_host_id],
1024 lcf->gateway->controller))
1027 GNUNET_TESTBED_register_host (lcf->gateway->controller,
1028 host_list[lcf->slave_host_id],
1033 lcf->state = SLAVE_HOST_REGISTERED;
1034 lcf_proc_task_id = GNUNET_SCHEDULER_add_now (&lcf_proc_task, lcf);
1037 case SLAVE_HOST_REGISTERED:
1038 fopc = GNUNET_malloc (sizeof (struct ForwardedOperationContext));
1039 fopc->client = lcf->client;
1040 fopc->operation_id = lcf->operation_id;
1042 GNUNET_TESTBED_forward_operation_msg_ (lcf->gateway->controller,
1045 &forwarded_operation_reply_relay,
1047 fopc->timeout_task =
1048 GNUNET_SCHEDULER_add_delayed (TIMEOUT,
1049 &forwarded_operation_timeout, fopc);
1050 lcf->state = FINISHED;
1051 lcf_proc_task_id = GNUNET_SCHEDULER_add_now (&lcf_proc_task, lcf);
1055 GNUNET_assert (lcfq->lcf == lcf);
1056 GNUNET_free (lcf->msg);
1058 GNUNET_CONTAINER_DLL_remove (lcfq_head, lcfq_tail, lcfq);
1060 if (NULL != lcfq_head)
1062 GNUNET_SCHEDULER_add_now (&lcf_proc_task, lcfq_head->lcf);
1068 * Callback for event from slave controllers
1070 * @param cls struct Slave *
1071 * @param event information about the event
1074 slave_event_callback (void *cls,
1075 const struct GNUNET_TESTBED_EventInformation *event)
1082 * Callback to signal successfull startup of the controller process
1084 * @param cls the closure from GNUNET_TESTBED_controller_start()
1085 * @param cfg the configuration with which the controller has been started;
1086 * NULL if status is not GNUNET_OK
1087 * @param status GNUNET_OK if the startup is successfull; GNUNET_SYSERR if not,
1088 * GNUNET_TESTBED_controller_stop() shouldn't be called in this case
1091 slave_status_callback (void *cls,
1092 const struct GNUNET_CONFIGURATION_Handle *cfg,
1095 struct LinkControllersContext *lcc = cls;
1097 if (GNUNET_SYSERR == status)
1099 lcc->slave->controller_proc = NULL;
1100 LOG (GNUNET_ERROR_TYPE_WARNING,
1101 "Unexpected slave shutdown\n");
1102 GNUNET_SCHEDULER_shutdown (); /* We too shutdown */
1105 lcc->slave->controller =
1106 GNUNET_TESTBED_controller_connect (cfg, host_list[lcc->slave->host_id],
1107 master_context->event_mask,
1108 &slave_event_callback, lcc->slave);
1109 if (NULL != lcc->slave->controller)
1110 send_operation_success_msg (lcc->client, lcc->operation_id);
1112 send_operation_fail_msg (lcc->client, lcc->operation_id,
1113 "Could not connect to delegated controller");
1114 GNUNET_SERVER_client_drop (lcc->client);
1120 * Message handler for GNUNET_MESSAGE_TYPE_TESTBED_INIT messages
1123 * @param client identification of the client
1124 * @param message the actual message
1127 handle_init (void *cls,
1128 struct GNUNET_SERVER_Client *client,
1129 const struct GNUNET_MessageHeader *message)
1131 const struct GNUNET_TESTBED_InitMessage *msg;
1132 struct GNUNET_TESTBED_Host *host;
1133 const char *controller_hostname;
1136 if (NULL != master_context)
1139 GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
1142 msg = (const struct GNUNET_TESTBED_InitMessage *) message;
1143 msize = ntohs (message->size);
1144 if (msize <= sizeof (struct GNUNET_TESTBED_InitMessage))
1147 GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
1150 msize -= sizeof (struct GNUNET_TESTBED_InitMessage);
1151 controller_hostname = (const char *) &msg[1];
1152 if ('\0' != controller_hostname[msize - 1])
1155 GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
1158 master_context = GNUNET_malloc (sizeof (struct Context));
1159 master_context->client = client;
1160 master_context->host_id = ntohl (msg->host_id);
1161 master_context->master_ip = GNUNET_strdup (controller_hostname);
1162 LOG_DEBUG ("Master Controller IP: %s\n", master_context->master_ip);
1163 master_context->system =
1164 GNUNET_TESTING_system_create ("testbed", master_context->master_ip);
1165 host = GNUNET_TESTBED_host_create_with_id (master_context->host_id,
1167 host_list_add (host);
1168 master_context->event_mask = GNUNET_ntohll (msg->event_mask);
1169 GNUNET_SERVER_client_keep (client);
1170 LOG_DEBUG ("Created master context with host ID: %u\n",
1171 master_context->host_id);
1172 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1177 * Message handler for GNUNET_MESSAGE_TYPE_TESTBED_ADDHOST messages
1180 * @param client identification of the client
1181 * @param message the actual message
1184 handle_add_host (void *cls,
1185 struct GNUNET_SERVER_Client *client,
1186 const struct GNUNET_MessageHeader *message)
1188 struct GNUNET_TESTBED_Host *host;
1189 const struct GNUNET_TESTBED_AddHostMessage *msg;
1190 struct GNUNET_TESTBED_HostConfirmedMessage *reply;
1195 uint16_t username_length;
1196 uint16_t hostname_length;
1197 uint16_t reply_size;
1200 msg = (const struct GNUNET_TESTBED_AddHostMessage *) message;
1201 msize = ntohs (msg->header.size);
1202 username = (char *) &(msg[1]);
1203 username_length = ntohs (msg->user_name_length);
1204 GNUNET_assert (msize > (sizeof (struct GNUNET_TESTBED_AddHostMessage)
1205 + username_length + 1)); /* msg must contain hostname */
1206 if (0 != username_length)
1207 GNUNET_assert ('\0' == username[username_length]);
1208 username_length = (0 == username_length) ? 0 : username_length + 1;
1209 hostname = username + username_length;
1210 hostname_length = msize - (sizeof (struct GNUNET_TESTBED_AddHostMessage)
1212 GNUNET_assert ('\0' == hostname[hostname_length - 1]);
1213 GNUNET_assert (strlen (hostname) == hostname_length - 1);
1214 host_id = ntohl (msg->host_id);
1215 LOG_DEBUG ("Received ADDHOST message\n");
1216 LOG_DEBUG ("-------host id: %u\n", host_id);
1217 if (NULL != hostname) LOG_DEBUG ("-------hostname: %s\n", hostname);
1218 if (0 != username_length) LOG_DEBUG ("-------username: %s\n", username);
1221 LOG_DEBUG ("-------username: NULL\n");
1224 LOG_DEBUG ("-------ssh port: %u\n", ntohs (msg->ssh_port));
1225 host = GNUNET_TESTBED_host_create_with_id (host_id, hostname, username,
1226 ntohs (msg->ssh_port));
1227 GNUNET_assert (NULL != host);
1228 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1229 reply_size = sizeof (struct GNUNET_TESTBED_HostConfirmedMessage);
1230 if (GNUNET_OK != host_list_add (host))
1232 /* We are unable to add a host */
1233 emsg = "A host exists with given host-id";
1234 LOG_DEBUG ("%s: %u", emsg, host_id);
1235 GNUNET_TESTBED_host_destroy (host);
1236 reply_size += strlen (emsg) + 1;
1237 reply = GNUNET_malloc (reply_size);
1238 memcpy (&reply[1], emsg, strlen (emsg) + 1);
1241 reply = GNUNET_malloc (reply_size);
1242 reply->header.type = htons (GNUNET_MESSAGE_TYPE_TESTBED_ADDHOSTCONFIRM);
1243 reply->header.size = htons (reply_size);
1244 reply->host_id = htonl (host_id);
1245 queue_message (client, &reply->header);
1250 * Iterator over hash map entries.
1252 * @param cls closure
1253 * @param key current key code
1254 * @param value value in the hash map
1255 * @return GNUNET_YES if we should continue to
1259 int ss_exists_iterator (void *cls,
1260 const struct GNUNET_HashCode * key,
1263 struct SharedService *queried_ss = cls;
1264 struct SharedService *ss = value;
1266 if (0 == strcmp (ss->name, queried_ss->name))
1274 * Message handler for GNUNET_MESSAGE_TYPE_TESTBED_ADDHOST messages
1277 * @param client identification of the client
1278 * @param message the actual message
1281 handle_configure_shared_service (void *cls,
1282 struct GNUNET_SERVER_Client *client,
1283 const struct GNUNET_MessageHeader *message)
1285 const struct GNUNET_TESTBED_ConfigureSharedServiceMessage *msg;
1286 struct SharedService *ss;
1288 struct GNUNET_HashCode hash;
1290 uint16_t service_name_size;
1292 msg = (const struct GNUNET_TESTBED_ConfigureSharedServiceMessage *) message;
1293 msg_size = ntohs (message->size);
1294 if (msg_size <= sizeof (struct GNUNET_TESTBED_ConfigureSharedServiceMessage))
1297 GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
1300 service_name_size = msg_size -
1301 sizeof (struct GNUNET_TESTBED_ConfigureSharedServiceMessage);
1302 service_name = (char *) &msg[1];
1303 if ('\0' != service_name[service_name_size - 1])
1306 GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
1309 LOG_DEBUG ("Received service sharing request for %s, with %d peers\n",
1310 service_name, ntohl (msg->num_peers));
1311 if (ntohl (msg->host_id) != master_context->host_id)
1313 route_message (ntohl (msg->host_id), message);
1314 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1317 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1318 ss = GNUNET_malloc (sizeof (struct SharedService));
1319 ss->name = strdup (service_name);
1320 ss->num_shared = ntohl (msg->num_peers);
1321 GNUNET_CRYPTO_hash (ss->name, service_name_size, &hash);
1322 if (GNUNET_SYSERR ==
1323 GNUNET_CONTAINER_multihashmap_get_multiple (ss_map, &hash,
1324 &ss_exists_iterator, ss))
1326 LOG (GNUNET_ERROR_TYPE_WARNING,
1327 "Service %s already configured as a shared service. "
1328 "Ignoring service sharing request \n", ss->name);
1329 GNUNET_free (ss->name);
1333 GNUNET_CONTAINER_multihashmap_put (ss_map, &hash, ss,
1334 GNUNET_CONTAINER_MULTIHASHMAPOPTION_MULTIPLE);
1339 * Message handler for GNUNET_MESSAGE_TYPE_TESTBED_LCONTROLLERS message
1342 * @param client identification of the client
1343 * @param message the actual message
1346 handle_link_controllers (void *cls,
1347 struct GNUNET_SERVER_Client *client,
1348 const struct GNUNET_MessageHeader *message)
1350 const struct GNUNET_TESTBED_ControllerLinkMessage *msg;
1351 struct GNUNET_CONFIGURATION_Handle *cfg;
1352 struct LCFContextQueue *lcfq;
1353 struct Route *route;
1354 struct Route *new_route;
1358 uint32_t delegated_host_id;
1359 uint32_t slave_host_id;
1362 if (NULL == master_context)
1365 GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
1368 msize = ntohs (message->size);
1369 if (sizeof (struct GNUNET_TESTBED_ControllerLinkMessage) >= msize)
1372 GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
1375 msg = (const struct GNUNET_TESTBED_ControllerLinkMessage *) message;
1376 delegated_host_id = ntohl (msg->delegated_host_id);
1377 if (delegated_host_id == master_context->host_id)
1380 LOG (GNUNET_ERROR_TYPE_WARNING, "Trying to link ourselves\n");
1381 GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
1384 if ((delegated_host_id >= host_list_size) ||
1385 (NULL == host_list[delegated_host_id]))
1387 LOG (GNUNET_ERROR_TYPE_WARNING, "Delegated host not registered with us\n");
1388 GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
1391 slave_host_id = ntohl (msg->slave_host_id);
1392 if ((slave_host_id >= host_list_size) || (NULL == host_list[slave_host_id]))
1394 LOG (GNUNET_ERROR_TYPE_WARNING, "Slave host not registered with us\n");
1395 GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
1398 if (slave_host_id == delegated_host_id)
1400 LOG (GNUNET_ERROR_TYPE_WARNING, "Slave and delegated host are same\n");
1401 GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
1405 if (slave_host_id == master_context->host_id) /* Link from us */
1407 struct Slave *slave;
1409 msize -= sizeof (struct GNUNET_TESTBED_ControllerLinkMessage);
1410 config_size = ntohs (msg->config_size);
1411 if ((delegated_host_id < slave_list_size) &&
1412 (NULL != slave_list[delegated_host_id])) /* We have already added */
1414 LOG (GNUNET_ERROR_TYPE_WARNING, "Host %u already connected\n",
1416 GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
1419 config = GNUNET_malloc (config_size);
1420 dest_size = (uLongf) config_size;
1421 if (Z_OK != uncompress ((Bytef *) config, &dest_size,
1422 (const Bytef *) &msg[1], (uLong) msize))
1424 GNUNET_break (0); /* Compression error */
1425 GNUNET_free (config);
1426 GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
1429 if (config_size != dest_size)
1431 LOG (GNUNET_ERROR_TYPE_WARNING, "Uncompressed config size mismatch\n");
1432 GNUNET_free (config);
1433 GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
1436 cfg = GNUNET_CONFIGURATION_create (); /* Free here or in lcfcontext */
1437 if (GNUNET_OK != GNUNET_CONFIGURATION_deserialize (cfg, config, config_size,
1440 GNUNET_break (0); /* Configuration parsing error */
1441 GNUNET_free (config);
1442 GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
1445 GNUNET_free (config);
1446 if ((delegated_host_id < slave_list_size) &&
1447 (NULL != slave_list[delegated_host_id]))
1449 GNUNET_break (0); /* Configuration parsing error */
1450 GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
1453 slave = GNUNET_malloc (sizeof (struct Slave));
1454 slave->host_id = delegated_host_id;
1455 slave_list_add (slave);
1456 if (1 == msg->is_subordinate)
1458 struct LinkControllersContext *lcc;
1459 lcc = GNUNET_malloc (sizeof (struct LinkControllersContext));
1460 lcc->operation_id = GNUNET_ntohll (msg->operation_id);
1461 GNUNET_SERVER_client_keep (client);
1462 lcc->client = client;
1464 slave->controller_proc =
1465 GNUNET_TESTBED_controller_start (master_context->master_ip,
1466 host_list[slave->host_id],
1467 cfg, &slave_status_callback,
1472 GNUNET_TESTBED_controller_connect (cfg, host_list[slave->host_id],
1473 master_context->event_mask,
1474 &slave_event_callback, slave);
1475 if (NULL != slave->controller)
1476 send_operation_success_msg (client, GNUNET_ntohll (msg->operation_id));
1478 send_operation_fail_msg (client, GNUNET_ntohll (msg->operation_id),
1479 "Could not connect to delegated controller");
1481 GNUNET_CONFIGURATION_destroy (cfg);
1482 new_route = GNUNET_malloc (sizeof (struct Route));
1483 new_route->dest = delegated_host_id;
1484 new_route->thru = master_context->host_id;
1485 route_list_add (new_route);
1486 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1490 /* Route the request */
1491 if (slave_host_id >= route_list_size)
1493 LOG (GNUNET_ERROR_TYPE_WARNING, "No route towards slave host");
1494 GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
1497 lcfq = GNUNET_malloc (sizeof (struct LCFContextQueue));
1498 lcfq->lcf = GNUNET_malloc (sizeof (struct LCFContext));
1499 lcfq->lcf->delegated_host_id = delegated_host_id;
1500 lcfq->lcf->slave_host_id = slave_host_id;
1501 route = find_dest_route (slave_host_id);
1502 GNUNET_assert (NULL != route); /* because we add routes carefully */
1503 GNUNET_assert (route->dest < slave_list_size);
1504 GNUNET_assert (NULL != slave_list[route->dest]);
1505 lcfq->lcf->state = INIT;
1506 lcfq->lcf->operation_id = GNUNET_ntohll (msg->operation_id);
1507 lcfq->lcf->gateway = slave_list[route->dest];
1508 lcfq->lcf->msg = GNUNET_malloc (msize);
1509 (void) memcpy (lcfq->lcf->msg, msg, msize);
1510 GNUNET_SERVER_client_keep (client);
1511 lcfq->lcf->client = client;
1512 if (NULL == lcfq_head)
1514 GNUNET_assert (GNUNET_SCHEDULER_NO_TASK == lcf_proc_task_id);
1515 GNUNET_CONTAINER_DLL_insert_tail (lcfq_head, lcfq_tail, lcfq);
1516 lcf_proc_task_id = GNUNET_SCHEDULER_add_now (&lcf_proc_task, lcfq->lcf);
1519 GNUNET_CONTAINER_DLL_insert_tail (lcfq_head, lcfq_tail, lcfq);
1520 /* FIXME: Adding a new route should happen after the controllers are linked
1522 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1523 new_route = GNUNET_malloc (sizeof (struct Route));
1524 new_route->dest = delegated_host_id;
1525 new_route->thru = route->dest;
1526 route_list_add (new_route);
1531 * The task to be executed if the forwarded peer create operation has been
1534 * @param cls the FowardedOperationContext
1535 * @param tc the TaskContext from the scheduler
1538 peer_create_forward_timeout (void *cls,
1539 const struct GNUNET_SCHEDULER_TaskContext *tc)
1541 struct ForwardedOperationContext *fo_ctxt = cls;
1543 /* send error msg to client */
1544 send_operation_fail_msg (fo_ctxt->client, fo_ctxt->operation_id,
1546 GNUNET_SERVER_client_drop (fo_ctxt->client);
1547 GNUNET_TESTBED_forward_operation_msg_cancel_ (fo_ctxt->opc);
1548 GNUNET_free (fo_ctxt);
1553 * Callback to be called when forwarded peer create operation is
1554 * successfull. We have to relay the reply msg back to the client
1556 * @param cls ForwardedOperationContext
1557 * @param msg the peer create success message
1560 peer_create_success_cb (void *cls,
1561 const struct GNUNET_MessageHeader *msg)
1563 struct ForwardedOperationContext *fo_ctxt = cls;
1564 const struct GNUNET_TESTBED_PeerCreateSuccessEventMessage *success_msg;
1565 struct GNUNET_MessageHeader *dup_msg;
1569 GNUNET_SCHEDULER_cancel (fo_ctxt->timeout_task);
1570 if (ntohs (msg->type) == GNUNET_MESSAGE_TYPE_TESTBED_PEERCREATESUCCESS)
1573 = (const struct GNUNET_TESTBED_PeerCreateSuccessEventMessage *) msg;
1574 peer = GNUNET_malloc (sizeof (struct Peer));
1575 peer->is_remote = GNUNET_YES;
1576 peer->id = ntohl (success_msg->peer_id);
1577 GNUNET_assert (NULL != fo_ctxt->cls);
1578 peer->details.remote.controller = fo_ctxt->cls;
1579 peer_list_add (peer);
1581 msize = ntohs (msg->size);
1582 dup_msg = GNUNET_malloc (msize);
1583 (void) memcpy (dup_msg, msg, msize);
1584 queue_message (fo_ctxt->client, dup_msg);
1585 GNUNET_SERVER_client_drop (fo_ctxt->client);
1586 GNUNET_free (fo_ctxt);
1592 * Handler for GNUNET_MESSAGE_TYPE_TESTBED_CREATEPEER messages
1595 * @param client identification of the client
1596 * @param message the actual message
1599 handle_peer_create (void *cls,
1600 struct GNUNET_SERVER_Client *client,
1601 const struct GNUNET_MessageHeader *message)
1603 const struct GNUNET_TESTBED_PeerCreateMessage *msg;
1604 struct GNUNET_TESTBED_PeerCreateSuccessEventMessage *reply;
1605 struct GNUNET_CONFIGURATION_Handle *cfg;
1606 struct ForwardedOperationContext *fo_ctxt;
1607 struct Route *route;
1612 uint32_t config_size;
1618 msize = ntohs (message->size);
1619 if (msize <= sizeof (struct GNUNET_TESTBED_PeerCreateMessage))
1621 GNUNET_break (0); /* We need configuration */
1622 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1625 msg = (const struct GNUNET_TESTBED_PeerCreateMessage *) message;
1626 host_id = ntohl (msg->host_id);
1627 peer_id = ntohl (msg->peer_id);
1628 if (UINT32_MAX == peer_id)
1630 send_operation_fail_msg (client, GNUNET_ntohll (msg->operation_id),
1631 "Cannot create peer with given ID");
1632 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1635 if (host_id == master_context->host_id)
1639 /* We are responsible for this peer */
1640 msize -= sizeof (struct GNUNET_TESTBED_PeerCreateMessage);
1641 config_size = ntohl (msg->config_size);
1642 config = GNUNET_malloc (config_size);
1643 dest_size = config_size;
1644 if (Z_OK != (ret = uncompress ((Bytef *) config, (uLongf *) &dest_size,
1645 (const Bytef *) &msg[1], (uLong) msize)))
1647 GNUNET_break (0); /* uncompression error */
1648 GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
1651 if (config_size != dest_size)
1653 GNUNET_break (0);/* Uncompressed config size mismatch */
1654 GNUNET_free (config);
1655 GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
1658 cfg = GNUNET_CONFIGURATION_create ();
1659 if (GNUNET_OK != GNUNET_CONFIGURATION_deserialize (cfg, config, config_size,
1662 GNUNET_break (0); /* Configuration parsing error */
1663 GNUNET_free (config);
1664 GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
1667 GNUNET_free (config);
1668 peer = GNUNET_malloc (sizeof (struct Peer));
1669 peer->is_remote = GNUNET_NO;
1670 peer->details.local.cfg = cfg;
1672 LOG_DEBUG ("Creating peer with id: %u\n", peer->id);
1673 peer->details.local.peer =
1674 GNUNET_TESTING_peer_configure (master_context->system,
1675 peer->details.local.cfg, peer->id,
1678 if (NULL == peer->details.local.peer)
1680 LOG (GNUNET_ERROR_TYPE_WARNING, "Configuring peer failed: %s\n", emsg);
1684 GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
1687 peer_list_add (peer);
1688 reply = GNUNET_malloc (sizeof (struct GNUNET_TESTBED_PeerCreateSuccessEventMessage));
1689 reply->header.size = htons (sizeof (struct GNUNET_TESTBED_PeerCreateSuccessEventMessage));
1690 reply->header.type = htons (GNUNET_MESSAGE_TYPE_TESTBED_PEERCREATESUCCESS);
1691 reply->peer_id = msg->peer_id;
1692 reply->operation_id = msg->operation_id;
1693 queue_message (client, &reply->header);
1694 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1698 /* Forward peer create request */
1699 route = find_dest_route (host_id);
1703 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1706 fo_ctxt = GNUNET_malloc (sizeof (struct ForwardedOperationContext));
1707 GNUNET_SERVER_client_keep (client);
1708 fo_ctxt->client = client;
1709 fo_ctxt->operation_id = GNUNET_ntohll (msg->operation_id);
1710 fo_ctxt->cls = slave_list[route->dest]->controller;
1712 GNUNET_TESTBED_forward_operation_msg_ (slave_list[route->dest]->controller,
1713 fo_ctxt->operation_id,
1715 peer_create_success_cb, fo_ctxt);
1716 fo_ctxt->timeout_task =
1717 GNUNET_SCHEDULER_add_delayed (TIMEOUT,
1718 &peer_create_forward_timeout, fo_ctxt);
1720 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1725 * Message handler for GNUNET_MESSAGE_TYPE_TESTBED_DESTROYPEER messages
1728 * @param client identification of the client
1729 * @param message the actual message
1732 handle_peer_destroy (void *cls,
1733 struct GNUNET_SERVER_Client *client,
1734 const struct GNUNET_MessageHeader *message)
1736 const struct GNUNET_TESTBED_PeerDestroyMessage *msg;
1737 struct ForwardedOperationContext *fopc;
1741 msg = (const struct GNUNET_TESTBED_PeerDestroyMessage *) message;
1742 peer_id = ntohl (msg->peer_id);
1743 LOG_DEBUG ("Received peer destory on peer: %u and operation id: %ul\n",
1744 peer_id, GNUNET_ntohll (msg->operation_id));
1745 if ((peer_list_size <= peer_id) || (NULL == peer_list[peer_id]))
1747 LOG (GNUNET_ERROR_TYPE_ERROR,
1748 "Asked to destroy a non existent peer with id: %u\n", peer_id);
1749 send_operation_fail_msg (client, GNUNET_ntohll (msg->operation_id),
1750 "Peer doesn't exist");
1751 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1754 peer = peer_list[peer_id];
1755 if (GNUNET_YES == peer->is_remote)
1757 /* Forward the destory message to sub controller */
1758 fopc = GNUNET_malloc (sizeof (struct ForwardedOperationContext));
1759 GNUNET_SERVER_client_keep (client);
1760 fopc->client = client;
1761 fopc->operation_id = GNUNET_ntohll (msg->operation_id);
1763 GNUNET_TESTBED_forward_operation_msg_ (peer->details.remote.controller,
1766 &forwarded_operation_reply_relay,
1768 fopc->timeout_task =
1769 GNUNET_SCHEDULER_add_delayed (TIMEOUT,
1770 &forwarded_operation_timeout, fopc);
1771 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1774 GNUNET_TESTING_peer_destroy (peer->details.local.peer);
1775 GNUNET_CONFIGURATION_destroy (peer->details.local.cfg);
1776 peer_list_remove (peer);
1778 send_operation_success_msg (client, GNUNET_ntohll (msg->operation_id));
1779 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1784 * Message handler for GNUNET_MESSAGE_TYPE_TESTBED_DESTROYPEER messages
1787 * @param client identification of the client
1788 * @param message the actual message
1791 handle_peer_start (void *cls,
1792 struct GNUNET_SERVER_Client *client,
1793 const struct GNUNET_MessageHeader *message)
1795 const struct GNUNET_TESTBED_PeerStartMessage *msg;
1796 struct GNUNET_TESTBED_PeerEventMessage *reply;
1797 struct ForwardedOperationContext *fopc;
1801 msg = (const struct GNUNET_TESTBED_PeerStartMessage *) message;
1802 peer_id = ntohl (msg->peer_id);
1803 if ((peer_id >= peer_list_size)
1804 || (NULL == peer_list[peer_id]))
1807 LOG (GNUNET_ERROR_TYPE_ERROR,
1808 "Asked to start a non existent peer with id: %u\n", peer_id);
1809 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1812 peer = peer_list[peer_id];
1813 if (GNUNET_YES == peer->is_remote)
1815 fopc = GNUNET_malloc (sizeof (struct ForwardedOperationContext));
1816 GNUNET_SERVER_client_keep (client);
1817 fopc->client = client;
1818 fopc->operation_id = GNUNET_ntohll (msg->operation_id);
1820 GNUNET_TESTBED_forward_operation_msg_ (peer->details.remote.controller,
1823 &forwarded_operation_reply_relay,
1825 fopc->timeout_task =
1826 GNUNET_SCHEDULER_add_delayed (TIMEOUT,
1827 &forwarded_operation_timeout, fopc);
1828 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1832 GNUNET_TESTING_peer_start (peer->details.local.peer))
1834 send_operation_fail_msg (client, GNUNET_ntohll (msg->operation_id),
1836 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1839 reply = GNUNET_malloc (sizeof (struct GNUNET_TESTBED_PeerEventMessage));
1840 reply->header.type = htons (GNUNET_MESSAGE_TYPE_TESTBED_PEEREVENT);
1841 reply->header.size = htons (sizeof (struct GNUNET_TESTBED_PeerEventMessage));
1842 reply->event_type = htonl (GNUNET_TESTBED_ET_PEER_START);
1843 reply->host_id = htonl (master_context->host_id);
1844 reply->peer_id = msg->peer_id;
1845 reply->operation_id = msg->operation_id;
1846 queue_message (client, &reply->header);
1847 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1852 * Message handler for GNUNET_MESSAGE_TYPE_TESTBED_DESTROYPEER messages
1855 * @param client identification of the client
1856 * @param message the actual message
1859 handle_peer_stop (void *cls,
1860 struct GNUNET_SERVER_Client *client,
1861 const struct GNUNET_MessageHeader *message)
1863 const struct GNUNET_TESTBED_PeerStopMessage *msg;
1864 struct GNUNET_TESTBED_PeerEventMessage *reply;
1865 struct ForwardedOperationContext *fopc;
1869 msg = (const struct GNUNET_TESTBED_PeerStopMessage *) message;
1870 peer_id = ntohl (msg->peer_id);
1871 if ((peer_id >= peer_list_size) || (NULL == peer_list[peer_id]))
1873 send_operation_fail_msg (client, GNUNET_ntohll (msg->operation_id),
1875 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1878 peer = peer_list[peer_id];
1879 if (GNUNET_YES == peer->is_remote)
1881 fopc = GNUNET_malloc (sizeof (struct ForwardedOperationContext));
1882 GNUNET_SERVER_client_keep (client);
1883 fopc->client = client;
1884 fopc->operation_id = GNUNET_ntohll (msg->operation_id);
1886 GNUNET_TESTBED_forward_operation_msg_ (peer->details.remote.controller,
1889 &forwarded_operation_reply_relay,
1891 fopc->timeout_task =
1892 GNUNET_SCHEDULER_add_delayed (TIMEOUT,
1893 &forwarded_operation_timeout, fopc);
1894 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1898 GNUNET_TESTING_peer_stop (peer->details.local.peer))
1900 send_operation_fail_msg (client, GNUNET_ntohll (msg->operation_id),
1901 "Failed to stop peer");
1902 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1905 reply = GNUNET_malloc (sizeof (struct GNUNET_TESTBED_PeerEventMessage));
1906 reply->header.type = htons (GNUNET_MESSAGE_TYPE_TESTBED_PEEREVENT);
1907 reply->header.size = htons (sizeof (struct GNUNET_TESTBED_PeerEventMessage));
1908 reply->event_type = htonl (GNUNET_TESTBED_ET_PEER_STOP);
1909 reply->host_id = htonl (master_context->host_id);
1910 reply->peer_id = msg->peer_id;
1911 reply->operation_id = msg->operation_id;
1912 queue_message (client, &reply->header);
1913 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1918 * Handler for GNUNET_MESSAGE_TYPE_TESTBED_GETPEERCONFIG messages
1921 * @param client identification of the client
1922 * @param message the actual message
1925 handle_peer_get_config (void *cls,
1926 struct GNUNET_SERVER_Client *client,
1927 const struct GNUNET_MessageHeader *message)
1929 const struct GNUNET_TESTBED_PeerGetConfigurationMessage *msg;
1930 struct GNUNET_TESTBED_PeerConfigurationInformationMessage *reply;
1939 msg = (const struct GNUNET_TESTBED_PeerGetConfigurationMessage *) message;
1940 peer_id = ntohl (msg->peer_id);
1941 if ((peer_id >= peer_list_size) || (NULL == peer_list[peer_id]))
1943 send_operation_fail_msg (client, GNUNET_ntohll (msg->operation_id),
1945 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1948 peer = peer_list[peer_id];
1949 if (GNUNET_YES == peer->is_remote)
1951 /* FIXME: forward to sub controller */
1953 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1957 GNUNET_CONFIGURATION_serialize (peer_list[peer_id]->details.local.cfg,
1959 xc_size = GNUNET_TESTBED_compress_config_ (config, c_size, &xconfig);
1960 GNUNET_free (config);
1961 msize = xc_size + sizeof (struct
1962 GNUNET_TESTBED_PeerConfigurationInformationMessage);
1963 reply = GNUNET_realloc (xconfig, msize);
1964 (void) memmove (&reply[1], reply, xc_size);
1965 reply->header.size = htons (msize);
1966 reply->header.type = htons (GNUNET_MESSAGE_TYPE_TESTBED_PEERCONFIG);
1967 reply->peer_id = msg->peer_id;
1968 reply->operation_id = msg->operation_id;
1969 GNUNET_TESTING_peer_get_identity (peer_list[peer_id]->details.local.peer,
1970 &reply->peer_identity);
1971 reply->config_size = htons ((uint16_t) c_size);
1972 queue_message (client, &reply->header);
1973 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1978 * Task for cleaing up overlay connect context structure
1980 * @param cls the overlay connect context
1981 * @param tc the task context
1984 occ_cleanup (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
1986 struct OverlayConnectContext *occ = cls;
1988 GNUNET_free_non_null (occ->emsg);
1989 GNUNET_free_non_null (occ->hello);
1990 if (GNUNET_SCHEDULER_NO_TASK != occ->send_hello_task)
1991 GNUNET_SCHEDULER_cancel (occ->send_hello_task);
1992 if (NULL != occ->ch)
1993 GNUNET_CORE_disconnect (occ->ch);
1994 if (NULL != occ->ghh)
1995 GNUNET_TRANSPORT_get_hello_cancel (occ->ghh);
1996 if (NULL != occ->p1th)
1997 GNUNET_TRANSPORT_disconnect (occ->p1th);
1998 if (NULL != occ->p2th)
1999 GNUNET_TRANSPORT_disconnect (occ->p2th);
2005 * Task which will be run when overlay connect request has been timed out
2007 * @param cls the OverlayConnectContext
2008 * @param tc the TaskContext
2011 timeout_overlay_connect (void *cls,
2012 const struct GNUNET_SCHEDULER_TaskContext *tc)
2014 struct OverlayConnectContext *occ = cls;
2016 occ->timeout_task = GNUNET_SCHEDULER_NO_TASK;
2017 send_operation_fail_msg (occ->client, occ->op_id, occ->emsg);
2018 GNUNET_SERVER_client_drop (occ->client);
2019 occ_cleanup (occ, tc);
2025 * Function called to notify transport users that another
2026 * peer connected to us.
2028 * @param cls closure
2029 * @param new_peer the peer that connected
2030 * @param ats performance data
2031 * @param ats_count number of entries in ats (excluding 0-termination)
2034 overlay_connect_notify (void *cls,
2035 const struct GNUNET_PeerIdentity * new_peer,
2036 const struct GNUNET_ATS_Information * ats,
2037 unsigned int ats_count)
2039 struct OverlayConnectContext *occ = cls;
2040 struct GNUNET_TESTBED_ConnectionEventMessage *msg;
2042 char *other_peer_str;
2044 LOG_DEBUG ("Overlay connect notify\n");
2045 if (0 == memcmp (new_peer, &occ->peer_identity,
2046 sizeof (struct GNUNET_PeerIdentity)))
2048 new_peer_str = GNUNET_strdup (GNUNET_i2s (new_peer));
2049 other_peer_str = GNUNET_strdup (GNUNET_i2s (&occ->other_peer_identity));
2050 if (0 != memcmp (new_peer, &occ->other_peer_identity,
2051 sizeof (struct GNUNET_PeerIdentity)))
2053 LOG_DEBUG ("Unexpected peer %4s connected to peer %4s\n",
2054 new_peer_str, other_peer_str);
2055 GNUNET_free (new_peer_str);
2056 GNUNET_free (other_peer_str);
2059 LOG_DEBUG ("Peer %4s connected to peer %4s\n", new_peer_str, other_peer_str);
2060 GNUNET_free (new_peer_str);
2061 GNUNET_free (other_peer_str);
2062 if (GNUNET_SCHEDULER_NO_TASK != occ->send_hello_task)
2064 GNUNET_SCHEDULER_cancel (occ->send_hello_task);
2065 occ->send_hello_task = GNUNET_SCHEDULER_NO_TASK;
2067 GNUNET_assert (GNUNET_SCHEDULER_NO_TASK != occ->timeout_task);
2068 GNUNET_SCHEDULER_cancel (occ->timeout_task);
2069 occ->timeout_task = GNUNET_SCHEDULER_NO_TASK;
2070 GNUNET_free_non_null (occ->emsg);
2072 GNUNET_TRANSPORT_disconnect (occ->p1th);
2074 /* Peer 1 has connected connect to peer2 - now send overlay connect success message */
2075 LOG_DEBUG ("Peers connected - Sending overlay connect success\n");
2076 msg = GNUNET_malloc (sizeof (struct GNUNET_TESTBED_ConnectionEventMessage));
2077 msg->header.size = htons (sizeof (struct
2078 GNUNET_TESTBED_ConnectionEventMessage));
2079 msg->header.type = htons (GNUNET_MESSAGE_TYPE_TESTBED_PEERCONEVENT);
2080 msg->event_type = htonl (GNUNET_TESTBED_ET_CONNECT);
2081 msg->peer1 = htonl (occ->peer->id);
2082 msg->peer2 = htonl (occ->other_peer->id);
2083 msg->operation_id = GNUNET_htonll (occ->op_id);
2084 queue_message (occ->client, &msg->header);
2085 GNUNET_SERVER_client_drop (occ->client);
2086 GNUNET_SCHEDULER_add_now (&occ_cleanup, occ);
2091 send_hello (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
2093 struct OverlayConnectContext *occ = cls;
2094 char *other_peer_str;
2096 occ->send_hello_task = GNUNET_SCHEDULER_NO_TASK;
2097 if (0 != (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN))
2099 GNUNET_assert (NULL != occ->hello);
2100 other_peer_str = GNUNET_strdup (GNUNET_i2s (&occ->other_peer_identity));
2101 LOG_DEBUG ("Offering HELLO of %s to %s\n", other_peer_str, GNUNET_i2s (&occ->peer_identity));
2102 GNUNET_free (other_peer_str);
2103 GNUNET_TRANSPORT_offer_hello (occ->p1th, occ->hello, NULL, NULL);
2104 GNUNET_TRANSPORT_try_connect (occ->p1th, &occ->other_peer_identity);
2105 occ->send_hello_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_SECONDS,
2110 * Test for checking whether HELLO message is empty
2112 * @param cls empty flag to set
2113 * @param address the HELLO
2114 * @param expiration expiration of the HELLO
2118 test_address (void *cls, const struct GNUNET_HELLO_Address *address,
2119 struct GNUNET_TIME_Absolute expiration)
2129 * Function called whenever there is an update to the
2130 * HELLO of peers in the OverlayConnectClosure
2132 * @param cls closure
2133 * @param hello our updated HELLO
2136 hello_update_cb (void *cls, const struct GNUNET_MessageHeader *hello)
2138 struct OverlayConnectContext *occ = cls;
2142 msize = ntohs (hello->size);
2145 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2146 "HELLO message of peer %s is of size 0\n",
2147 &occ->other_peer_identity);
2152 GNUNET_HELLO_iterate_addresses ((const struct GNUNET_HELLO_Message *) hello,
2153 GNUNET_NO, &test_address, &empty);
2154 if (GNUNET_YES == empty)
2156 LOG_DEBUG ("HELLO of %s is empty\n", GNUNET_i2s (&occ->other_peer_identity));
2159 LOG_DEBUG ("Received HELLO of %s\n", GNUNET_i2s (&occ->other_peer_identity));
2160 occ->hello = GNUNET_malloc (msize);
2161 memcpy (occ->hello, hello, msize);
2162 GNUNET_TRANSPORT_get_hello_cancel (occ->ghh);
2164 GNUNET_TRANSPORT_disconnect (occ->p2th);
2166 GNUNET_free_non_null (occ->emsg);
2167 occ->emsg = GNUNET_strdup ("Timeout while offering HELLO to other peer");
2168 occ->send_hello_task = GNUNET_SCHEDULER_add_now (&send_hello, occ);
2173 * Function called after GNUNET_CORE_connect has succeeded (or failed
2174 * for good). Note that the private key of the peer is intentionally
2175 * not exposed here; if you need it, your process should try to read
2176 * the private key file directly (which should work if you are
2179 * @param cls closure
2180 * @param server handle to the server, NULL if we failed
2181 * @param my_identity ID of this peer, NULL if we failed
2184 core_startup_cb (void *cls, struct GNUNET_CORE_Handle * server,
2185 const struct GNUNET_PeerIdentity *my_identity)
2187 struct OverlayConnectContext *occ = cls;
2189 GNUNET_free_non_null (occ->emsg);
2191 memcpy (&occ->peer_identity, my_identity, sizeof (struct GNUNET_PeerIdentity));
2193 GNUNET_TRANSPORT_connect (occ->peer->details.local.cfg,
2194 &occ->peer_identity, NULL, NULL, NULL, NULL);
2195 /* Connect to the transport of 2nd peer and get its HELLO message */
2196 GNUNET_TESTING_peer_get_identity (occ->other_peer->details.local.peer,
2197 &occ->other_peer_identity);
2199 GNUNET_TRANSPORT_connect (occ->other_peer->details.local.cfg,
2200 &occ->other_peer_identity,
2201 NULL, NULL, NULL, NULL);
2202 if ((NULL == occ->p1th) || (NULL == occ->p2th))
2204 occ->emsg = GNUNET_strdup ("Cannot connect to TRANSPORTs of peers");
2207 LOG_DEBUG ("Acquiring HELLO of peer %s\n", GNUNET_i2s
2208 (&occ->other_peer_identity));
2209 occ->emsg = GNUNET_strdup ("Timeout while acquiring HELLO message");
2210 occ->ghh = GNUNET_TRANSPORT_get_hello (occ->p2th, &hello_update_cb, occ);
2214 GNUNET_SCHEDULER_cancel (occ->timeout_task);
2215 occ->timeout_task = GNUNET_SCHEDULER_add_now (&timeout_overlay_connect, occ);
2220 * Handler for GNUNET_MESSAGE_TYPE_TESTBED_OLCONNECT messages
2223 * @param client identification of the client
2224 * @param message the actual message
2227 handle_overlay_connect (void *cls,
2228 struct GNUNET_SERVER_Client *client,
2229 const struct GNUNET_MessageHeader *message)
2231 const struct GNUNET_TESTBED_OverlayConnectMessage *msg;
2232 struct OverlayConnectContext *occ;
2233 struct GNUNET_CORE_MessageHandler no_handlers[] = {
2239 msg = (const struct GNUNET_TESTBED_OverlayConnectMessage *) message;
2240 p1 = ntohl (msg->peer1);
2241 p2 = ntohl (msg->peer2);
2242 GNUNET_assert (p1 < peer_list_size);
2243 GNUNET_assert (NULL != peer_list[p1]);
2244 GNUNET_assert (p2 < peer_list_size);
2245 GNUNET_assert (NULL != peer_list[p2]);
2246 /* FIXME: Add cases where we have to forward overlay connect message to sub
2248 occ = GNUNET_malloc (sizeof (struct OverlayConnectContext));
2249 GNUNET_SERVER_client_keep (client);
2250 occ->client = client;
2251 occ->state = OCC_STATE_INIT;
2252 occ->peer = peer_list[p1];
2253 occ->other_peer = peer_list[p2];
2254 occ->op_id = GNUNET_ntohll (msg->operation_id);
2256 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply
2257 (GNUNET_TIME_UNIT_SECONDS, 30),
2258 &timeout_overlay_connect, occ);
2259 /* Connect to the core of 1st peer and wait for the 2nd peer to connect */
2260 occ->emsg = GNUNET_strdup ("Timeout while connecting to CORE");
2262 GNUNET_CORE_connect (occ->peer->details.local.cfg, occ, &core_startup_cb,
2263 &overlay_connect_notify, NULL, NULL, GNUNET_NO, NULL,
2264 GNUNET_NO, no_handlers);
2265 GNUNET_SERVER_receive_done (client, GNUNET_OK);
2270 * Iterator over hash map entries.
2272 * @param cls closure
2273 * @param key current key code
2274 * @param value value in the hash map
2275 * @return GNUNET_YES if we should continue to
2280 ss_map_free_iterator (void *cls,
2281 const struct GNUNET_HashCode * key, void *value)
2283 struct SharedService *ss = value;
2285 GNUNET_assert (GNUNET_YES ==
2286 GNUNET_CONTAINER_multihashmap_remove (ss_map, key, value));
2287 GNUNET_free (ss->name);
2294 * Task to clean up and shutdown nicely
2297 * @param tc the TaskContext from scheduler
2300 shutdown_task (void *cls,
2301 const struct GNUNET_SCHEDULER_TaskContext *tc)
2303 struct LCFContextQueue *lcfq;
2306 shutdown_task_id = GNUNET_SCHEDULER_NO_TASK;
2307 LOG (GNUNET_ERROR_TYPE_DEBUG, "Shutting down testbed service\n");
2308 (void) GNUNET_CONTAINER_multihashmap_iterate (ss_map, &ss_map_free_iterator,
2310 GNUNET_CONTAINER_multihashmap_destroy (ss_map);
2311 if (NULL != lcfq_head)
2313 if (GNUNET_SCHEDULER_NO_TASK != lcf_proc_task_id)
2315 GNUNET_SCHEDULER_cancel (lcf_proc_task_id);
2316 lcf_proc_task_id = GNUNET_SCHEDULER_NO_TASK;
2318 if (NULL != lcfq_head->lcf->rhandle)
2319 GNUNET_TESTBED_cancel_registration (lcfq_head->lcf->rhandle);
2321 GNUNET_assert (GNUNET_SCHEDULER_NO_TASK == lcf_proc_task_id);
2322 for (lcfq = lcfq_head; NULL != lcfq; lcfq = lcfq_head)
2324 GNUNET_free (lcfq->lcf->msg);
2325 GNUNET_free (lcfq->lcf);
2326 GNUNET_CONTAINER_DLL_remove (lcfq_head, lcfq_tail, lcfq);
2329 /* Clear peer list */
2330 for (id = 0; id < peer_list_size; id++)
2331 if (NULL != peer_list[id])
2333 if (GNUNET_NO == peer_list[id]->is_remote)
2335 GNUNET_TESTING_peer_destroy (peer_list[id]->details.local.peer);
2336 GNUNET_CONFIGURATION_destroy (peer_list[id]->details.local.cfg);
2338 GNUNET_free (peer_list[id]);
2340 GNUNET_free_non_null (peer_list);
2341 /* Clear host list */
2342 for (id = 0; id < host_list_size; id++)
2343 if (NULL != host_list[id])
2344 GNUNET_TESTBED_host_destroy (host_list[id]);
2345 GNUNET_free_non_null (host_list);
2346 /* Clear route list */
2347 for (id = 0; id < route_list_size; id++)
2348 if (NULL != route_list[id])
2349 GNUNET_free (route_list[id]);
2350 GNUNET_free_non_null (route_list);
2351 /* Clear slave_list */
2352 for (id = 0; id < slave_list_size; id++)
2353 if (NULL != slave_list[id])
2355 if (NULL != slave_list[id]->controller)
2356 GNUNET_TESTBED_controller_disconnect (slave_list[id]->controller);
2357 if (NULL != slave_list[id]->controller_proc)
2358 GNUNET_TESTBED_controller_stop (slave_list[id]->controller_proc);
2360 if (NULL != master_context)
2362 GNUNET_free_non_null (master_context->master_ip);
2363 if (NULL != master_context->system)
2364 GNUNET_TESTING_system_destroy (master_context->system, GNUNET_YES);
2365 GNUNET_free (master_context);
2366 master_context = NULL;
2372 * Callback for client disconnect
2375 * @param client the client which has disconnected
2378 client_disconnect_cb (void *cls, struct GNUNET_SERVER_Client *client)
2380 if (NULL == master_context)
2382 if (client == master_context->client)
2384 LOG (GNUNET_ERROR_TYPE_DEBUG, "Master client disconnected\n");
2385 GNUNET_SERVER_client_drop (client);
2386 /* should not be needed as we're terminated by failure to read
2387 from stdin, but if stdin fails for some reason, this shouldn't
2388 hurt for now --- might need to revise this later if we ever
2389 decide that master connections might be temporarily down
2391 //GNUNET_SCHEDULER_shutdown ();
2399 * @param cls closure
2400 * @param server the initialized server
2401 * @param cfg configuration to use
2404 testbed_run (void *cls,
2405 struct GNUNET_SERVER_Handle *server,
2406 const struct GNUNET_CONFIGURATION_Handle *cfg)
2408 static const struct GNUNET_SERVER_MessageHandler message_handlers[] =
2410 {&handle_init, NULL, GNUNET_MESSAGE_TYPE_TESTBED_INIT, 0},
2411 {&handle_add_host, NULL, GNUNET_MESSAGE_TYPE_TESTBED_ADDHOST, 0},
2412 {&handle_configure_shared_service, NULL,
2413 GNUNET_MESSAGE_TYPE_TESTBED_SERVICESHARE, 0},
2414 {&handle_link_controllers, NULL,
2415 GNUNET_MESSAGE_TYPE_TESTBED_LCONTROLLERS, 0},
2416 {&handle_peer_create, NULL, GNUNET_MESSAGE_TYPE_TESTBED_CREATEPEER, 0},
2417 {&handle_peer_destroy, NULL, GNUNET_MESSAGE_TYPE_TESTBED_DESTROYPEER,
2418 sizeof (struct GNUNET_TESTBED_PeerDestroyMessage)},
2419 {&handle_peer_start, NULL, GNUNET_MESSAGE_TYPE_TESTBED_STARTPEER,
2420 sizeof (struct GNUNET_TESTBED_PeerStartMessage)},
2421 {&handle_peer_stop, NULL, GNUNET_MESSAGE_TYPE_TESTBED_STOPPEER,
2422 sizeof (struct GNUNET_TESTBED_PeerStopMessage)},
2423 {&handle_peer_get_config, NULL, GNUNET_MESSAGE_TYPE_TESTBED_GETPEERCONFIG,
2424 sizeof (struct GNUNET_TESTBED_PeerGetConfigurationMessage)},
2425 {&handle_overlay_connect, NULL, GNUNET_MESSAGE_TYPE_TESTBED_OLCONNECT,
2426 sizeof (struct GNUNET_TESTBED_OverlayConnectMessage)},
2430 GNUNET_SERVER_add_handlers (server,
2432 GNUNET_SERVER_disconnect_notify (server,
2433 &client_disconnect_cb,
2435 ss_map = GNUNET_CONTAINER_multihashmap_create (5);
2437 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_FOREVER_REL,
2440 LOG_DEBUG ("Testbed startup complete\n");
2445 * The starting point of execution
2447 int main (int argc, char *const *argv)
2449 //sleep (15); /* Debugging */
2452 GNUNET_SERVICE_run (argc,
2455 GNUNET_SERVICE_OPTION_NONE,