2 This file is part of GNUnet.
3 (C) 2012 Christian Grothoff (and other contributing authors)
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6 it under the terms of the GNU General Public License as published
7 by the Free Software Foundation; either version 2, or (at your
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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,
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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)
759 if (peer->id >= peer_list_size)
761 peer_list = TESTBED_realloc (peer_list,
762 sizeof (struct Peer *) * peer_list_size,
763 sizeof (struct Peer *) *
764 (peer_list_size + LIST_GROW_STEP));
765 peer_list_size += LIST_GROW_STEP;
767 GNUNET_assert (NULL == peer_list[peer->id]);
768 peer_list[peer->id] = peer;
773 * Removes a the give peer from the peer array
775 * @param peer the peer to be removed
778 peer_list_remove (struct Peer *peer)
782 peer_list[peer->id] = NULL;
783 while (peer_list_size >= LIST_GROW_STEP)
785 for (id = peer_list_size - 1;
786 id > peer_list_size - LIST_GROW_STEP; id--)
787 if (NULL != peer_list[id])
789 if (id != peer_list_size - LIST_GROW_STEP)
791 peer_list_size -= LIST_GROW_STEP;
793 peer_list = GNUNET_realloc (peer_list, sizeof (struct GNUNET_TESTBED_Peer*)
799 * Finds the route with directly connected host as destination through which
800 * the destination host can be reached
802 * @param host_id the id of the destination host
803 * @return the route with directly connected destination host; NULL if no route
806 static struct Route *
807 find_dest_route (uint32_t host_id)
811 while(NULL != (route = route_list[host_id]))
813 if (route->thru == master_context->host_id)
815 host_id = route->thru;
822 * Routes message to a host given its host_id
824 * @param host_id the id of the destination host
825 * @param msg the message to be routed
828 route_message (uint32_t host_id, const struct GNUNET_MessageHeader *msg)
835 * Send operation failure message to client
837 * @param client the client to which the failure message has to be sent to
838 * @param operation_id the id of the failed operation
839 * @param emsg the error message; can be NULL
842 send_operation_fail_msg (struct GNUNET_SERVER_Client *client,
843 uint64_t operation_id,
846 struct GNUNET_TESTBED_OperationFailureEventMessage *msg;
850 msize = sizeof (struct GNUNET_TESTBED_OperationFailureEventMessage);
851 emsg_len = (NULL == emsg) ? 0 : strlen (emsg) + 1;
853 msg = GNUNET_malloc (msize);
854 msg->header.size = htons (msize);
855 msg->header.type = htons (GNUNET_MESSAGE_TYPE_TESTBED_OPERATIONEVENT);
856 msg->event_type = htonl (GNUNET_TESTBED_ET_OPERATION_FINISHED);
857 msg->operation_id = GNUNET_htonll (operation_id);
859 memcpy (&msg[1], emsg, emsg_len);
860 queue_message (client, &msg->header);
865 * Function to send generic operation success message to given client
867 * @param client the client to send the message to
868 * @param operation_id the id of the operation which was successful
871 send_operation_success_msg (struct GNUNET_SERVER_Client *client,
872 uint64_t operation_id)
874 struct GNUNET_TESTBED_GenericOperationSuccessEventMessage *msg;
877 msize = sizeof (struct GNUNET_TESTBED_GenericOperationSuccessEventMessage);
878 msg = GNUNET_malloc (msize);
879 msg->header.size = htons (msize);
880 msg->header.type = htons (GNUNET_MESSAGE_TYPE_TESTBED_GENERICOPSUCCESS);
881 msg->operation_id = GNUNET_htonll (operation_id);
882 msg->event_type = htonl (GNUNET_TESTBED_ET_OPERATION_FINISHED);
883 queue_message (client, &msg->header);
888 * The Link Controller forwarding task
890 * @param cls the LCFContext
891 * @param tc the Task context from scheduler
894 lcf_proc_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc);
898 * Completion callback for host registrations while forwarding Link Controller messages
900 * @param cls the LCFContext
901 * @param emsg the error message; NULL if host registration is successful
904 lcf_proc_cc (void *cls, const char *emsg)
906 struct LCFContext *lcf = cls;
909 GNUNET_assert (GNUNET_SCHEDULER_NO_TASK == lcf_proc_task_id);
914 goto registration_error;
915 lcf->state = DELEGATED_HOST_REGISTERED;
916 lcf_proc_task_id = GNUNET_SCHEDULER_add_now (&lcf_proc_task, lcf);
918 case DELEGATED_HOST_REGISTERED:
920 goto registration_error;
921 lcf->state = SLAVE_HOST_REGISTERED;
922 lcf_proc_task_id = GNUNET_SCHEDULER_add_now (&lcf_proc_task, lcf);
925 GNUNET_assert (0); /* Shouldn't reach here */
930 LOG (GNUNET_ERROR_TYPE_WARNING,
931 "Host registration failed with message: %s\n", emsg);
932 lcf->state = FINISHED;
933 lcf_proc_task_id = GNUNET_SCHEDULER_add_now (&lcf_proc_task, lcf);
938 * Callback to be called when forwarded link controllers operation is
939 * successfull. We have to relay the reply msg back to the client
941 * @param cls ForwardedOperationContext
942 * @param msg the peer create success message
945 forwarded_link_controllers_reply_relay (void *cls,
946 const struct GNUNET_MessageHeader *msg)
948 struct ForwardedOperationContext *fopc = cls;
949 struct GNUNET_MessageHeader *dup_msg;
952 msize = ntohs (msg->size);
953 dup_msg = GNUNET_malloc (msize);
954 (void) memcpy (dup_msg, msg, msize);
955 queue_message (fopc->client, dup_msg);
956 GNUNET_SERVER_client_drop (fopc->client);
957 GNUNET_SCHEDULER_cancel (fopc->timeout_task);
963 * Task to free resources when forwarded link controllers has been timedout
965 * @param cls the ForwardedOperationContext
966 * @param tc the task context from scheduler
969 forwarded_link_controllers_timeout (void *cls,
970 const struct GNUNET_SCHEDULER_TaskContext
973 struct ForwardedOperationContext *fopc = cls;
975 GNUNET_TESTBED_forward_operation_msg_cancel_ (fopc->opc);
976 GNUNET_SERVER_client_drop (fopc->client);
982 * The Link Controller forwarding task
984 * @param cls the LCFContext
985 * @param tc the Task context from scheduler
988 lcf_proc_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
990 struct LCFContext *lcf = cls;
991 struct LCFContextQueue *lcfq;
992 struct ForwardedOperationContext *fopc;
994 lcf_proc_task_id = GNUNET_SCHEDULER_NO_TASK;
999 GNUNET_TESTBED_is_host_registered_ (host_list[lcf->delegated_host_id],
1000 lcf->gateway->controller))
1003 GNUNET_TESTBED_register_host (lcf->gateway->controller,
1004 host_list[lcf->delegated_host_id],
1009 lcf->state = DELEGATED_HOST_REGISTERED;
1010 lcf_proc_task_id = GNUNET_SCHEDULER_add_now (&lcf_proc_task, lcf);
1013 case DELEGATED_HOST_REGISTERED:
1015 GNUNET_TESTBED_is_host_registered_ (host_list[lcf->slave_host_id],
1016 lcf->gateway->controller))
1019 GNUNET_TESTBED_register_host (lcf->gateway->controller,
1020 host_list[lcf->slave_host_id],
1025 lcf->state = SLAVE_HOST_REGISTERED;
1026 lcf_proc_task_id = GNUNET_SCHEDULER_add_now (&lcf_proc_task, lcf);
1029 case SLAVE_HOST_REGISTERED:
1030 fopc = GNUNET_malloc (sizeof (struct ForwardedOperationContext));
1031 fopc->client = lcf->client;
1032 fopc->operation_id = lcf->operation_id;
1034 GNUNET_TESTBED_forward_operation_msg_ (lcf->gateway->controller,
1037 &forwarded_link_controllers_reply_relay,
1039 fopc->timeout_task =
1040 GNUNET_SCHEDULER_add_delayed (TIMEOUT,
1041 &forwarded_link_controllers_timeout, fopc);
1042 lcf->state = FINISHED;
1043 lcf_proc_task_id = GNUNET_SCHEDULER_add_now (&lcf_proc_task, lcf);
1047 GNUNET_assert (lcfq->lcf == lcf);
1048 GNUNET_free (lcf->msg);
1050 GNUNET_CONTAINER_DLL_remove (lcfq_head, lcfq_tail, lcfq);
1052 if (NULL != lcfq_head)
1054 GNUNET_SCHEDULER_add_now (&lcf_proc_task, lcfq_head->lcf);
1060 * Callback for event from slave controllers
1062 * @param cls struct Slave *
1063 * @param event information about the event
1066 slave_event_callback (void *cls,
1067 const struct GNUNET_TESTBED_EventInformation *event)
1074 * Callback to signal successfull startup of the controller process
1076 * @param cls the closure from GNUNET_TESTBED_controller_start()
1077 * @param cfg the configuration with which the controller has been started;
1078 * NULL if status is not GNUNET_OK
1079 * @param status GNUNET_OK if the startup is successfull; GNUNET_SYSERR if not,
1080 * GNUNET_TESTBED_controller_stop() shouldn't be called in this case
1083 slave_status_callback (void *cls,
1084 const struct GNUNET_CONFIGURATION_Handle *cfg,
1087 struct LinkControllersContext *lcc = cls;
1089 if (GNUNET_SYSERR == status)
1091 lcc->slave->controller_proc = NULL;
1092 LOG (GNUNET_ERROR_TYPE_WARNING,
1093 "Unexpected slave shutdown\n");
1094 GNUNET_SCHEDULER_shutdown (); /* We too shutdown */
1097 lcc->slave->controller =
1098 GNUNET_TESTBED_controller_connect (cfg, host_list[lcc->slave->host_id],
1099 master_context->event_mask,
1100 &slave_event_callback, lcc->slave);
1101 if (NULL != lcc->slave->controller)
1102 send_operation_success_msg (lcc->client, lcc->operation_id);
1104 send_operation_fail_msg (lcc->client, lcc->operation_id,
1105 "Could not connect to delegated controller");
1106 GNUNET_SERVER_client_drop (lcc->client);
1112 * Message handler for GNUNET_MESSAGE_TYPE_TESTBED_INIT messages
1115 * @param client identification of the client
1116 * @param message the actual message
1119 handle_init (void *cls,
1120 struct GNUNET_SERVER_Client *client,
1121 const struct GNUNET_MessageHeader *message)
1123 const struct GNUNET_TESTBED_InitMessage *msg;
1124 struct GNUNET_TESTBED_Host *host;
1125 const char *controller_hostname;
1128 if (NULL != master_context)
1131 GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
1134 msg = (const struct GNUNET_TESTBED_InitMessage *) message;
1135 msize = ntohs (message->size);
1136 if (msize <= sizeof (struct GNUNET_TESTBED_InitMessage))
1139 GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
1142 msize -= sizeof (struct GNUNET_TESTBED_InitMessage);
1143 controller_hostname = (const char *) &msg[1];
1144 if ('\0' != controller_hostname[msize - 1])
1147 GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
1150 master_context = GNUNET_malloc (sizeof (struct Context));
1151 master_context->client = client;
1152 master_context->host_id = ntohl (msg->host_id);
1153 master_context->master_ip = GNUNET_strdup (controller_hostname);
1154 LOG_DEBUG ("Master Controller IP: %s\n", master_context->master_ip);
1155 master_context->system =
1156 GNUNET_TESTING_system_create ("testbed", master_context->master_ip);
1157 host = GNUNET_TESTBED_host_create_with_id (master_context->host_id,
1159 host_list_add (host);
1160 master_context->event_mask = GNUNET_ntohll (msg->event_mask);
1161 GNUNET_SERVER_client_keep (client);
1162 LOG_DEBUG ("Created master context with host ID: %u\n",
1163 master_context->host_id);
1164 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1169 * Message handler for GNUNET_MESSAGE_TYPE_TESTBED_ADDHOST messages
1172 * @param client identification of the client
1173 * @param message the actual message
1176 handle_add_host (void *cls,
1177 struct GNUNET_SERVER_Client *client,
1178 const struct GNUNET_MessageHeader *message)
1180 struct GNUNET_TESTBED_Host *host;
1181 const struct GNUNET_TESTBED_AddHostMessage *msg;
1182 struct GNUNET_TESTBED_HostConfirmedMessage *reply;
1187 uint16_t username_length;
1188 uint16_t hostname_length;
1189 uint16_t reply_size;
1192 msg = (const struct GNUNET_TESTBED_AddHostMessage *) message;
1193 msize = ntohs (msg->header.size);
1194 username = (char *) &(msg[1]);
1195 username_length = ntohs (msg->user_name_length);
1196 GNUNET_assert (msize > (sizeof (struct GNUNET_TESTBED_AddHostMessage)
1197 + username_length + 1)); /* msg must contain hostname */
1198 if (0 != username_length)
1199 GNUNET_assert ('\0' == username[username_length]);
1200 username_length = (0 == username_length) ? 0 : username_length + 1;
1201 hostname = username + username_length;
1202 hostname_length = msize - (sizeof (struct GNUNET_TESTBED_AddHostMessage)
1204 GNUNET_assert ('\0' == hostname[hostname_length - 1]);
1205 GNUNET_assert (strlen (hostname) == hostname_length - 1);
1206 host_id = ntohl (msg->host_id);
1207 LOG_DEBUG ("Received ADDHOST message\n");
1208 LOG_DEBUG ("-------host id: %u\n", host_id);
1209 if (NULL != hostname) LOG_DEBUG ("-------hostname: %s\n", hostname);
1210 if (0 != username_length) LOG_DEBUG ("-------username: %s\n", username);
1213 LOG_DEBUG ("-------username: NULL\n");
1216 LOG_DEBUG ("-------ssh port: %u\n", ntohs (msg->ssh_port));
1217 host = GNUNET_TESTBED_host_create_with_id (host_id, hostname, username,
1218 ntohs (msg->ssh_port));
1219 GNUNET_assert (NULL != host);
1220 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1221 reply_size = sizeof (struct GNUNET_TESTBED_HostConfirmedMessage);
1222 if (GNUNET_OK != host_list_add (host))
1224 /* We are unable to add a host */
1225 emsg = "A host exists with given host-id";
1226 LOG_DEBUG ("%s: %u", emsg, host_id);
1227 GNUNET_TESTBED_host_destroy (host);
1228 reply_size += strlen (emsg) + 1;
1229 reply = GNUNET_malloc (reply_size);
1230 memcpy (&reply[1], emsg, strlen (emsg) + 1);
1233 reply = GNUNET_malloc (reply_size);
1234 reply->header.type = htons (GNUNET_MESSAGE_TYPE_TESTBED_ADDHOSTCONFIRM);
1235 reply->header.size = htons (reply_size);
1236 reply->host_id = htonl (host_id);
1237 queue_message (client, &reply->header);
1242 * Iterator over hash map entries.
1244 * @param cls closure
1245 * @param key current key code
1246 * @param value value in the hash map
1247 * @return GNUNET_YES if we should continue to
1251 int ss_exists_iterator (void *cls,
1252 const struct GNUNET_HashCode * key,
1255 struct SharedService *queried_ss = cls;
1256 struct SharedService *ss = value;
1258 if (0 == strcmp (ss->name, queried_ss->name))
1266 * Message handler for GNUNET_MESSAGE_TYPE_TESTBED_ADDHOST messages
1269 * @param client identification of the client
1270 * @param message the actual message
1273 handle_configure_shared_service (void *cls,
1274 struct GNUNET_SERVER_Client *client,
1275 const struct GNUNET_MessageHeader *message)
1277 const struct GNUNET_TESTBED_ConfigureSharedServiceMessage *msg;
1278 struct SharedService *ss;
1280 struct GNUNET_HashCode hash;
1282 uint16_t service_name_size;
1284 msg = (const struct GNUNET_TESTBED_ConfigureSharedServiceMessage *) message;
1285 msg_size = ntohs (message->size);
1286 if (msg_size <= sizeof (struct GNUNET_TESTBED_ConfigureSharedServiceMessage))
1289 GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
1292 service_name_size = msg_size -
1293 sizeof (struct GNUNET_TESTBED_ConfigureSharedServiceMessage);
1294 service_name = (char *) &msg[1];
1295 if ('\0' != service_name[service_name_size - 1])
1298 GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
1301 LOG_DEBUG ("Received service sharing request for %s, with %d peers\n",
1302 service_name, ntohl (msg->num_peers));
1303 if (ntohl (msg->host_id) != master_context->host_id)
1305 route_message (ntohl (msg->host_id), message);
1306 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1309 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1310 ss = GNUNET_malloc (sizeof (struct SharedService));
1311 ss->name = strdup (service_name);
1312 ss->num_shared = ntohl (msg->num_peers);
1313 GNUNET_CRYPTO_hash (ss->name, service_name_size, &hash);
1314 if (GNUNET_SYSERR ==
1315 GNUNET_CONTAINER_multihashmap_get_multiple (ss_map, &hash,
1316 &ss_exists_iterator, ss))
1318 LOG (GNUNET_ERROR_TYPE_WARNING,
1319 "Service %s already configured as a shared service. "
1320 "Ignoring service sharing request \n", ss->name);
1321 GNUNET_free (ss->name);
1325 GNUNET_CONTAINER_multihashmap_put (ss_map, &hash, ss,
1326 GNUNET_CONTAINER_MULTIHASHMAPOPTION_MULTIPLE);
1331 * Message handler for GNUNET_MESSAGE_TYPE_TESTBED_LCONTROLLERS message
1334 * @param client identification of the client
1335 * @param message the actual message
1338 handle_link_controllers (void *cls,
1339 struct GNUNET_SERVER_Client *client,
1340 const struct GNUNET_MessageHeader *message)
1342 const struct GNUNET_TESTBED_ControllerLinkMessage *msg;
1343 struct GNUNET_CONFIGURATION_Handle *cfg;
1344 struct LCFContextQueue *lcfq;
1345 struct Route *route;
1346 struct Route *new_route;
1350 uint32_t delegated_host_id;
1351 uint32_t slave_host_id;
1354 if (NULL == master_context)
1357 GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
1360 msize = ntohs (message->size);
1361 if (sizeof (struct GNUNET_TESTBED_ControllerLinkMessage) >= msize)
1364 GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
1367 msg = (const struct GNUNET_TESTBED_ControllerLinkMessage *) message;
1368 delegated_host_id = ntohl (msg->delegated_host_id);
1369 if (delegated_host_id == master_context->host_id)
1372 LOG (GNUNET_ERROR_TYPE_WARNING, "Trying to link ourselves\n");
1373 GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
1376 if ((delegated_host_id >= host_list_size) ||
1377 (NULL == host_list[delegated_host_id]))
1379 LOG (GNUNET_ERROR_TYPE_WARNING, "Delegated host not registered with us\n");
1380 GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
1383 slave_host_id = ntohl (msg->slave_host_id);
1384 if ((slave_host_id >= host_list_size) || (NULL == host_list[slave_host_id]))
1386 LOG (GNUNET_ERROR_TYPE_WARNING, "Slave host not registered with us\n");
1387 GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
1390 if (slave_host_id == delegated_host_id)
1392 LOG (GNUNET_ERROR_TYPE_WARNING, "Slave and delegated host are same\n");
1393 GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
1397 if (slave_host_id == master_context->host_id) /* Link from us */
1399 struct Slave *slave;
1401 msize -= sizeof (struct GNUNET_TESTBED_ControllerLinkMessage);
1402 config_size = ntohs (msg->config_size);
1403 if ((delegated_host_id < slave_list_size) &&
1404 (NULL != slave_list[delegated_host_id])) /* We have already added */
1406 LOG (GNUNET_ERROR_TYPE_WARNING, "Host %u already connected\n",
1408 GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
1411 config = GNUNET_malloc (config_size);
1412 dest_size = (uLongf) config_size;
1413 if (Z_OK != uncompress ((Bytef *) config, &dest_size,
1414 (const Bytef *) &msg[1], (uLong) msize))
1416 GNUNET_break (0); /* Compression error */
1417 GNUNET_free (config);
1418 GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
1421 if (config_size != dest_size)
1423 LOG (GNUNET_ERROR_TYPE_WARNING, "Uncompressed config size mismatch\n");
1424 GNUNET_free (config);
1425 GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
1428 cfg = GNUNET_CONFIGURATION_create (); /* Free here or in lcfcontext */
1429 if (GNUNET_OK != GNUNET_CONFIGURATION_deserialize (cfg, config, config_size,
1432 GNUNET_break (0); /* Configuration parsing error */
1433 GNUNET_free (config);
1434 GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
1437 GNUNET_free (config);
1438 if ((delegated_host_id < slave_list_size) &&
1439 (NULL != slave_list[delegated_host_id]))
1441 GNUNET_break (0); /* Configuration parsing error */
1442 GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
1445 slave = GNUNET_malloc (sizeof (struct Slave));
1446 slave->host_id = delegated_host_id;
1447 slave_list_add (slave);
1448 if (1 == msg->is_subordinate)
1450 struct LinkControllersContext *lcc;
1451 lcc = GNUNET_malloc (sizeof (struct LinkControllersContext));
1452 lcc->operation_id = GNUNET_ntohll (msg->operation_id);
1453 GNUNET_SERVER_client_keep (client);
1454 lcc->client = client;
1456 slave->controller_proc =
1457 GNUNET_TESTBED_controller_start (master_context->master_ip,
1458 host_list[slave->host_id],
1459 cfg, &slave_status_callback,
1464 GNUNET_TESTBED_controller_connect (cfg, host_list[slave->host_id],
1465 master_context->event_mask,
1466 &slave_event_callback, slave);
1467 if (NULL != slave->controller)
1468 send_operation_success_msg (client, GNUNET_ntohll (msg->operation_id));
1470 send_operation_fail_msg (client, GNUNET_ntohll (msg->operation_id),
1471 "Could not connect to delegated controller");
1473 GNUNET_CONFIGURATION_destroy (cfg);
1474 new_route = GNUNET_malloc (sizeof (struct Route));
1475 new_route->dest = delegated_host_id;
1476 new_route->thru = master_context->host_id;
1477 route_list_add (new_route);
1478 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1482 /* Route the request */
1483 if (slave_host_id >= route_list_size)
1485 LOG (GNUNET_ERROR_TYPE_WARNING, "No route towards slave host");
1486 GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
1489 lcfq = GNUNET_malloc (sizeof (struct LCFContextQueue));
1490 lcfq->lcf = GNUNET_malloc (sizeof (struct LCFContext));
1491 lcfq->lcf->delegated_host_id = delegated_host_id;
1492 lcfq->lcf->slave_host_id = slave_host_id;
1493 route = find_dest_route (slave_host_id);
1494 GNUNET_assert (NULL != route); /* because we add routes carefully */
1495 GNUNET_assert (route->dest < slave_list_size);
1496 GNUNET_assert (NULL != slave_list[route->dest]);
1497 lcfq->lcf->state = INIT;
1498 lcfq->lcf->operation_id = GNUNET_ntohll (msg->operation_id);
1499 lcfq->lcf->gateway = slave_list[route->dest];
1500 lcfq->lcf->msg = GNUNET_malloc (msize);
1501 (void) memcpy (lcfq->lcf->msg, msg, msize);
1502 GNUNET_SERVER_client_keep (client);
1503 lcfq->lcf->client = client;
1504 if (NULL == lcfq_head)
1506 GNUNET_assert (GNUNET_SCHEDULER_NO_TASK == lcf_proc_task_id);
1507 GNUNET_CONTAINER_DLL_insert_tail (lcfq_head, lcfq_tail, lcfq);
1508 lcf_proc_task_id = GNUNET_SCHEDULER_add_now (&lcf_proc_task, lcfq->lcf);
1511 GNUNET_CONTAINER_DLL_insert_tail (lcfq_head, lcfq_tail, lcfq);
1512 /* FIXME: Adding a new route should happen after the controllers are linked
1514 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1515 new_route = GNUNET_malloc (sizeof (struct Route));
1516 new_route->dest = delegated_host_id;
1517 new_route->thru = route->dest;
1518 route_list_add (new_route);
1523 * The task to be executed if the forwarded peer create operation has been
1526 * @param cls the FowardedOperationContext
1527 * @param tc the TaskContext from the scheduler
1530 peer_create_forward_timeout (void *cls,
1531 const struct GNUNET_SCHEDULER_TaskContext *tc)
1533 struct ForwardedOperationContext *fo_ctxt = cls;
1535 /* send error msg to client */
1536 send_operation_fail_msg (fo_ctxt->client, fo_ctxt->operation_id,
1538 GNUNET_SERVER_client_drop (fo_ctxt->client);
1539 GNUNET_TESTBED_forward_operation_msg_cancel_ (fo_ctxt->opc);
1540 GNUNET_free (fo_ctxt);
1545 * Callback to be called when forwarded peer create operation is
1546 * successfull. We have to relay the reply msg back to the client
1548 * @param cls ForwardedOperationContext
1549 * @param msg the peer create success message
1552 peer_create_success_cb (void *cls,
1553 const struct GNUNET_MessageHeader *msg)
1555 struct ForwardedOperationContext *fo_ctxt = cls;
1556 const struct GNUNET_TESTBED_PeerCreateSuccessEventMessage *success_msg;
1557 struct GNUNET_MessageHeader *dup_msg;
1561 GNUNET_SCHEDULER_cancel (fo_ctxt->timeout_task);
1562 if (ntohs (msg->type) == GNUNET_MESSAGE_TYPE_TESTBED_PEERCREATESUCCESS)
1565 = (const struct GNUNET_TESTBED_PeerCreateSuccessEventMessage *) msg;
1566 peer = GNUNET_malloc (sizeof (struct Peer));
1567 peer->is_remote = GNUNET_YES;
1568 peer->id = ntohl (success_msg->peer_id);
1569 GNUNET_assert (NULL != fo_ctxt->cls);
1570 peer->details.remote.controller = fo_ctxt->cls;
1571 peer_list_add (peer);
1573 msize = ntohs (msg->size);
1574 dup_msg = GNUNET_malloc (msize);
1575 (void) memcpy (dup_msg, msg, msize);
1576 queue_message (fo_ctxt->client, dup_msg);
1577 GNUNET_SERVER_client_drop (fo_ctxt->client);
1578 GNUNET_free (fo_ctxt);
1584 * Handler for GNUNET_MESSAGE_TYPE_TESTBED_CREATEPEER messages
1587 * @param client identification of the client
1588 * @param message the actual message
1591 handle_peer_create (void *cls,
1592 struct GNUNET_SERVER_Client *client,
1593 const struct GNUNET_MessageHeader *message)
1595 const struct GNUNET_TESTBED_PeerCreateMessage *msg;
1596 struct GNUNET_TESTBED_PeerCreateSuccessEventMessage *reply;
1597 struct GNUNET_CONFIGURATION_Handle *cfg;
1598 struct ForwardedOperationContext *fo_ctxt;
1599 struct Route *route;
1604 uint32_t config_size;
1609 msize = ntohs (message->size);
1610 if (msize <= sizeof (struct GNUNET_TESTBED_PeerCreateMessage))
1612 GNUNET_break (0); /* We need configuration */
1613 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1616 msg = (const struct GNUNET_TESTBED_PeerCreateMessage *) message;
1617 host_id = ntohl (msg->host_id);
1618 if (host_id == master_context->host_id)
1622 /* We are responsible for this peer */
1623 msize -= sizeof (struct GNUNET_TESTBED_PeerCreateMessage);
1624 config_size = ntohl (msg->config_size);
1625 config = GNUNET_malloc (config_size);
1626 dest_size = config_size;
1627 if (Z_OK != (ret = uncompress ((Bytef *) config, (uLongf *) &dest_size,
1628 (const Bytef *) &msg[1], (uLong) msize)))
1630 GNUNET_break (0); /* uncompression error */
1631 GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
1634 if (config_size != dest_size)
1636 GNUNET_break (0);/* Uncompressed config size mismatch */
1637 GNUNET_free (config);
1638 GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
1641 cfg = GNUNET_CONFIGURATION_create ();
1642 if (GNUNET_OK != GNUNET_CONFIGURATION_deserialize (cfg, config, config_size,
1645 GNUNET_break (0); /* Configuration parsing error */
1646 GNUNET_free (config);
1647 GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
1650 GNUNET_free (config);
1651 peer = GNUNET_malloc (sizeof (struct Peer));
1652 peer->is_remote = GNUNET_NO;
1653 peer->details.local.cfg = cfg;
1654 peer->id = ntohl (msg->peer_id);
1655 LOG_DEBUG ("Creating peer with id: %u\n", peer->id);
1656 peer->details.local.peer =
1657 GNUNET_TESTING_peer_configure (master_context->system,
1658 peer->details.local.cfg, peer->id,
1661 if (NULL == peer->details.local.peer)
1663 LOG (GNUNET_ERROR_TYPE_WARNING, "Configuring peer failed: %s\n", emsg);
1667 GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
1670 peer_list_add (peer);
1671 reply = GNUNET_malloc (sizeof (struct GNUNET_TESTBED_PeerCreateSuccessEventMessage));
1672 reply->header.size = htons (sizeof (struct GNUNET_TESTBED_PeerCreateSuccessEventMessage));
1673 reply->header.type = htons (GNUNET_MESSAGE_TYPE_TESTBED_PEERCREATESUCCESS);
1674 reply->peer_id = msg->peer_id;
1675 reply->operation_id = msg->operation_id;
1676 queue_message (client, &reply->header);
1677 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1681 /* Forward peer create request */
1682 route = find_dest_route (host_id);
1686 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1689 fo_ctxt = GNUNET_malloc (sizeof (struct ForwardedOperationContext));
1690 GNUNET_SERVER_client_keep (client);
1691 fo_ctxt->client = client;
1692 fo_ctxt->operation_id = GNUNET_ntohll (msg->operation_id);
1693 fo_ctxt->cls = slave_list[route->dest]->controller;
1695 GNUNET_TESTBED_forward_operation_msg_ (slave_list[route->dest]->controller,
1696 fo_ctxt->operation_id,
1698 peer_create_success_cb, fo_ctxt);
1699 fo_ctxt->timeout_task =
1700 GNUNET_SCHEDULER_add_delayed (TIMEOUT,
1701 &peer_create_forward_timeout, fo_ctxt);
1703 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1708 * Message handler for GNUNET_MESSAGE_TYPE_TESTBED_DESTROYPEER messages
1711 * @param client identification of the client
1712 * @param message the actual message
1715 handle_peer_destroy (void *cls,
1716 struct GNUNET_SERVER_Client *client,
1717 const struct GNUNET_MessageHeader *message)
1719 const struct GNUNET_TESTBED_PeerDestroyMessage *msg;
1723 msg = (const struct GNUNET_TESTBED_PeerDestroyMessage *) message;
1724 peer_id = ntohl (msg->peer_id);
1725 LOG_DEBUG ("Received peer destory on peer: %u and operation id: %ul\n",
1726 peer_id, GNUNET_ntohll (msg->operation_id));
1727 if ((peer_list_size <= peer_id) || (NULL == peer_list[peer_id]))
1729 LOG (GNUNET_ERROR_TYPE_ERROR,
1730 "Asked for destroy when peer not created at us\n");
1731 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1734 peer = peer_list[peer_id];
1735 if (GNUNET_YES == peer->is_remote)
1737 /* Forward the destory message to sub controller */
1739 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1742 GNUNET_TESTING_peer_destroy (peer->details.local.peer);
1743 GNUNET_CONFIGURATION_destroy (peer->details.local.cfg);
1744 peer_list_remove (peer);
1746 send_operation_success_msg (client, GNUNET_ntohll (msg->operation_id));
1747 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1752 * Message handler for GNUNET_MESSAGE_TYPE_TESTBED_DESTROYPEER messages
1755 * @param client identification of the client
1756 * @param message the actual message
1759 handle_peer_start (void *cls,
1760 struct GNUNET_SERVER_Client *client,
1761 const struct GNUNET_MessageHeader *message)
1763 const struct GNUNET_TESTBED_PeerStartMessage *msg;
1764 struct GNUNET_TESTBED_PeerEventMessage *reply;
1767 msg = (const struct GNUNET_TESTBED_PeerStartMessage *) message;
1768 peer_id = ntohl (msg->peer_id);
1769 if ((peer_id >= peer_list_size)
1770 || (NULL == peer_list[peer_id]))
1773 /* FIXME: reply with failure message or forward to slave controller */
1774 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1778 GNUNET_TESTING_peer_start (peer_list[peer_id]->details.local.peer))
1780 /* FIXME: return FAILURE message */
1782 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1785 reply = GNUNET_malloc (sizeof (struct GNUNET_TESTBED_PeerEventMessage));
1786 reply->header.type = htons (GNUNET_MESSAGE_TYPE_TESTBED_PEEREVENT);
1787 reply->header.size = htons (sizeof (struct GNUNET_TESTBED_PeerEventMessage));
1788 reply->event_type = htonl (GNUNET_TESTBED_ET_PEER_START);
1789 reply->host_id = htonl (master_context->host_id);
1790 reply->peer_id = msg->peer_id;
1791 reply->operation_id = msg->operation_id;
1792 queue_message (client, &reply->header);
1793 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1798 * Message handler for GNUNET_MESSAGE_TYPE_TESTBED_DESTROYPEER messages
1801 * @param client identification of the client
1802 * @param message the actual message
1805 handle_peer_stop (void *cls,
1806 struct GNUNET_SERVER_Client *client,
1807 const struct GNUNET_MessageHeader *message)
1809 const struct GNUNET_TESTBED_PeerStopMessage *msg;
1810 struct GNUNET_TESTBED_PeerEventMessage *reply;
1813 msg = (const struct GNUNET_TESTBED_PeerStopMessage *) message;
1814 peer_id = ntohl (msg->peer_id);
1815 if ((peer_id >= peer_list_size) || (NULL == peer_list[peer_id]))
1817 GNUNET_break (0); /* FIXME: route to slave? */
1818 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1822 GNUNET_TESTING_peer_stop (peer_list[peer_id]->details.local.peer))
1824 /* FIXME: return FAILURE message */
1826 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1829 reply = GNUNET_malloc (sizeof (struct GNUNET_TESTBED_PeerEventMessage));
1830 reply->header.type = htons (GNUNET_MESSAGE_TYPE_TESTBED_PEEREVENT);
1831 reply->header.size = htons (sizeof (struct GNUNET_TESTBED_PeerEventMessage));
1832 reply->event_type = htonl (GNUNET_TESTBED_ET_PEER_STOP);
1833 reply->host_id = htonl (master_context->host_id);
1834 reply->peer_id = msg->peer_id;
1835 reply->operation_id = msg->operation_id;
1836 queue_message (client, &reply->header);
1837 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1842 * Handler for GNUNET_MESSAGE_TYPE_TESTBED_GETPEERCONFIG messages
1845 * @param client identification of the client
1846 * @param message the actual message
1849 handle_peer_get_config (void *cls,
1850 struct GNUNET_SERVER_Client *client,
1851 const struct GNUNET_MessageHeader *message)
1853 const struct GNUNET_TESTBED_PeerGetConfigurationMessage *msg;
1854 struct GNUNET_TESTBED_PeerConfigurationInformationMessage *reply;
1863 msg = (const struct GNUNET_TESTBED_PeerGetConfigurationMessage *) message;
1864 peer_id = ntohl (msg->peer_id);
1865 if ((peer_id >= peer_list_size) || (NULL == peer_list[peer_id]))
1867 /* FIXME: return FAILURE message */
1869 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1872 peer = peer_list[peer_id];
1873 if (GNUNET_YES == peer->is_remote)
1875 /* FIXME: forward to sub controller */
1877 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1881 GNUNET_CONFIGURATION_serialize (peer_list[peer_id]->details.local.cfg,
1883 xc_size = GNUNET_TESTBED_compress_config_ (config, c_size, &xconfig);
1884 GNUNET_free (config);
1885 msize = xc_size + sizeof (struct
1886 GNUNET_TESTBED_PeerConfigurationInformationMessage);
1887 reply = GNUNET_realloc (xconfig, msize);
1888 (void) memmove (&reply[1], reply, xc_size);
1889 reply->header.size = htons (msize);
1890 reply->header.type = htons (GNUNET_MESSAGE_TYPE_TESTBED_PEERCONFIG);
1891 reply->peer_id = msg->peer_id;
1892 reply->operation_id = msg->operation_id;
1893 GNUNET_TESTING_peer_get_identity (peer_list[peer_id]->details.local.peer,
1894 &reply->peer_identity);
1895 reply->config_size = htons ((uint16_t) c_size);
1896 queue_message (client, &reply->header);
1897 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1902 * Task for cleaing up overlay connect context structure
1904 * @param cls the overlay connect context
1905 * @param tc the task context
1908 occ_cleanup (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
1910 struct OverlayConnectContext *occ = cls;
1912 GNUNET_free_non_null (occ->emsg);
1913 GNUNET_free_non_null (occ->hello);
1914 if (GNUNET_SCHEDULER_NO_TASK != occ->send_hello_task)
1915 GNUNET_SCHEDULER_cancel (occ->send_hello_task);
1916 if (NULL != occ->ch)
1917 GNUNET_CORE_disconnect (occ->ch);
1918 if (NULL != occ->ghh)
1919 GNUNET_TRANSPORT_get_hello_cancel (occ->ghh);
1920 if (NULL != occ->p1th)
1921 GNUNET_TRANSPORT_disconnect (occ->p1th);
1922 if (NULL != occ->p2th)
1923 GNUNET_TRANSPORT_disconnect (occ->p2th);
1929 * Task which will be run when overlay connect request has been timed out
1935 timeout_overlay_connect (void *cls,
1936 const struct GNUNET_SCHEDULER_TaskContext *tc)
1938 struct OverlayConnectContext *occ = cls;
1940 occ->timeout_task = GNUNET_SCHEDULER_NO_TASK;
1941 send_operation_fail_msg (occ->client, occ->op_id, occ->emsg);
1942 GNUNET_SERVER_client_drop (occ->client);
1943 occ_cleanup (occ, tc);
1949 * Function called to notify transport users that another
1950 * peer connected to us.
1952 * @param cls closure
1953 * @param new_peer the peer that connected
1954 * @param ats performance data
1955 * @param ats_count number of entries in ats (excluding 0-termination)
1958 overlay_connect_notify (void *cls,
1959 const struct GNUNET_PeerIdentity * new_peer,
1960 const struct GNUNET_ATS_Information * ats,
1961 unsigned int ats_count)
1963 struct OverlayConnectContext *occ = cls;
1964 struct GNUNET_TESTBED_ConnectionEventMessage *msg;
1966 char *other_peer_str;
1968 LOG_DEBUG ("Overlay connect notify\n");
1969 if (0 == memcmp (new_peer, &occ->peer_identity,
1970 sizeof (struct GNUNET_PeerIdentity)))
1972 new_peer_str = GNUNET_strdup (GNUNET_i2s (new_peer));
1973 other_peer_str = GNUNET_strdup (GNUNET_i2s (&occ->other_peer_identity));
1974 if (0 != memcmp (new_peer, &occ->other_peer_identity,
1975 sizeof (struct GNUNET_PeerIdentity)))
1977 LOG_DEBUG ("Unexpected peer %4s connected to peer %4s\n",
1978 new_peer_str, other_peer_str);
1979 GNUNET_free (new_peer_str);
1980 GNUNET_free (other_peer_str);
1983 LOG_DEBUG ("Peer %4s connected to peer %4s\n", new_peer_str, other_peer_str);
1984 GNUNET_free (new_peer_str);
1985 GNUNET_free (other_peer_str);
1986 if (GNUNET_SCHEDULER_NO_TASK != occ->send_hello_task)
1988 GNUNET_SCHEDULER_cancel (occ->send_hello_task);
1989 occ->send_hello_task = GNUNET_SCHEDULER_NO_TASK;
1991 GNUNET_assert (GNUNET_SCHEDULER_NO_TASK != occ->timeout_task);
1992 GNUNET_SCHEDULER_cancel (occ->timeout_task);
1993 occ->timeout_task = GNUNET_SCHEDULER_NO_TASK;
1994 GNUNET_free_non_null (occ->emsg);
1996 GNUNET_TRANSPORT_disconnect (occ->p1th);
1998 /* Peer 1 has connected connect to peer2 - now send overlay connect success message */
1999 LOG_DEBUG ("Peers connected - Sending overlay connect success\n");
2000 msg = GNUNET_malloc (sizeof (struct GNUNET_TESTBED_ConnectionEventMessage));
2001 msg->header.size = htons (sizeof (struct
2002 GNUNET_TESTBED_ConnectionEventMessage));
2003 msg->header.type = htons (GNUNET_MESSAGE_TYPE_TESTBED_PEERCONEVENT);
2004 msg->event_type = htonl (GNUNET_TESTBED_ET_CONNECT);
2005 msg->peer1 = htonl (occ->peer->id);
2006 msg->peer2 = htonl (occ->other_peer->id);
2007 msg->operation_id = GNUNET_htonll (occ->op_id);
2008 queue_message (occ->client, &msg->header);
2009 GNUNET_SERVER_client_drop (occ->client);
2010 GNUNET_SCHEDULER_add_now (&occ_cleanup, occ);
2015 send_hello (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
2017 struct OverlayConnectContext *occ = cls;
2018 char *other_peer_str;
2020 occ->send_hello_task = GNUNET_SCHEDULER_NO_TASK;
2021 if (0 != (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN))
2023 GNUNET_assert (NULL != occ->hello);
2024 other_peer_str = GNUNET_strdup (GNUNET_i2s (&occ->other_peer_identity));
2025 LOG_DEBUG ("Offering HELLO of %s to %s\n", other_peer_str, GNUNET_i2s (&occ->peer_identity));
2026 GNUNET_free (other_peer_str);
2027 GNUNET_TRANSPORT_offer_hello (occ->p1th, occ->hello, NULL, NULL);
2028 GNUNET_TRANSPORT_try_connect (occ->p1th, &occ->other_peer_identity);
2029 occ->send_hello_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_SECONDS,
2034 * Test for checking whether HELLO message is empty
2036 * @param cls empty flag to set
2037 * @param address the HELLO
2038 * @param expiration expiration of the HELLO
2042 test_address (void *cls, const struct GNUNET_HELLO_Address *address,
2043 struct GNUNET_TIME_Absolute expiration)
2053 * Function called whenever there is an update to the
2054 * HELLO of peers in the OverlayConnectClosure
2056 * @param cls closure
2057 * @param hello our updated HELLO
2060 hello_update_cb (void *cls, const struct GNUNET_MessageHeader *hello)
2062 struct OverlayConnectContext *occ = cls;
2066 msize = ntohs (hello->size);
2069 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2070 "HELLO message of peer %s is of size 0\n",
2071 &occ->other_peer_identity);
2076 GNUNET_HELLO_iterate_addresses ((const struct GNUNET_HELLO_Message *) hello,
2077 GNUNET_NO, &test_address, &empty);
2078 if (GNUNET_YES == empty)
2080 LOG_DEBUG ("HELLO of %s is empty\n", GNUNET_i2s (&occ->other_peer_identity));
2083 LOG_DEBUG ("Received HELLO of %s\n", GNUNET_i2s (&occ->other_peer_identity));
2084 occ->hello = GNUNET_malloc (msize);
2085 memcpy (occ->hello, hello, msize);
2086 GNUNET_TRANSPORT_get_hello_cancel (occ->ghh);
2088 GNUNET_TRANSPORT_disconnect (occ->p2th);
2090 GNUNET_free_non_null (occ->emsg);
2091 occ->emsg = GNUNET_strdup ("Timeout while offering HELLO to other peer");
2092 occ->send_hello_task = GNUNET_SCHEDULER_add_now (&send_hello, occ);
2097 * Function called after GNUNET_CORE_connect has succeeded (or failed
2098 * for good). Note that the private key of the peer is intentionally
2099 * not exposed here; if you need it, your process should try to read
2100 * the private key file directly (which should work if you are
2103 * @param cls closure
2104 * @param server handle to the server, NULL if we failed
2105 * @param my_identity ID of this peer, NULL if we failed
2108 core_startup_cb (void *cls, struct GNUNET_CORE_Handle * server,
2109 const struct GNUNET_PeerIdentity *my_identity)
2111 struct OverlayConnectContext *occ = cls;
2113 GNUNET_free_non_null (occ->emsg);
2115 memcpy (&occ->peer_identity, my_identity, sizeof (struct GNUNET_PeerIdentity));
2117 GNUNET_TRANSPORT_connect (occ->peer->details.local.cfg,
2118 &occ->peer_identity, NULL, NULL, NULL, NULL);
2119 /* Connect to the transport of 2nd peer and get its HELLO message */
2120 GNUNET_TESTING_peer_get_identity (occ->other_peer->details.local.peer,
2121 &occ->other_peer_identity);
2123 GNUNET_TRANSPORT_connect (occ->other_peer->details.local.cfg,
2124 &occ->other_peer_identity,
2125 NULL, NULL, NULL, NULL);
2126 if ((NULL == occ->p1th) || (NULL == occ->p2th))
2128 occ->emsg = GNUNET_strdup ("Cannot connect to TRANSPORTs of peers");
2131 LOG_DEBUG ("Acquiring HELLO of peer %s\n", GNUNET_i2s
2132 (&occ->other_peer_identity));
2133 occ->emsg = GNUNET_strdup ("Timeout while acquiring HELLO message");
2134 occ->ghh = GNUNET_TRANSPORT_get_hello (occ->p2th, &hello_update_cb, occ);
2138 GNUNET_SCHEDULER_cancel (occ->timeout_task);
2139 occ->timeout_task = GNUNET_SCHEDULER_add_now (&timeout_overlay_connect, occ);
2144 * Handler for GNUNET_MESSAGE_TYPE_TESTBED_OLCONNECT messages
2147 * @param client identification of the client
2148 * @param message the actual message
2151 handle_overlay_connect (void *cls,
2152 struct GNUNET_SERVER_Client *client,
2153 const struct GNUNET_MessageHeader *message)
2155 const struct GNUNET_TESTBED_OverlayConnectMessage *msg;
2156 struct OverlayConnectContext *occ;
2157 struct GNUNET_CORE_MessageHandler no_handlers[] = {
2163 msg = (const struct GNUNET_TESTBED_OverlayConnectMessage *) message;
2164 p1 = ntohl (msg->peer1);
2165 p2 = ntohl (msg->peer2);
2166 GNUNET_assert (p1 < peer_list_size);
2167 GNUNET_assert (NULL != peer_list[p1]);
2168 GNUNET_assert (p2 < peer_list_size);
2169 GNUNET_assert (NULL != peer_list[p2]);
2170 /* FIXME: Add cases where we have to forward overlay connect message to sub
2172 occ = GNUNET_malloc (sizeof (struct OverlayConnectContext));
2173 GNUNET_SERVER_client_keep (client);
2174 occ->client = client;
2175 occ->state = OCC_STATE_INIT;
2176 occ->peer = peer_list[p1];
2177 occ->other_peer = peer_list[p2];
2178 occ->op_id = GNUNET_ntohll (msg->operation_id);
2180 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply
2181 (GNUNET_TIME_UNIT_SECONDS, 30),
2182 &timeout_overlay_connect, occ);
2183 /* Connect to the core of 1st peer and wait for the 2nd peer to connect */
2184 occ->emsg = GNUNET_strdup ("Timeout while connecting to CORE");
2186 GNUNET_CORE_connect (occ->peer->details.local.cfg, occ, &core_startup_cb,
2187 &overlay_connect_notify, NULL, NULL, GNUNET_NO, NULL,
2188 GNUNET_NO, no_handlers);
2189 GNUNET_SERVER_receive_done (client, GNUNET_OK);
2194 * Iterator over hash map entries.
2196 * @param cls closure
2197 * @param key current key code
2198 * @param value value in the hash map
2199 * @return GNUNET_YES if we should continue to
2204 ss_map_free_iterator (void *cls,
2205 const struct GNUNET_HashCode * key, void *value)
2207 struct SharedService *ss = value;
2209 GNUNET_assert (GNUNET_YES ==
2210 GNUNET_CONTAINER_multihashmap_remove (ss_map, key, value));
2211 GNUNET_free (ss->name);
2218 * Task to clean up and shutdown nicely
2221 * @param tc the TaskContext from scheduler
2224 shutdown_task (void *cls,
2225 const struct GNUNET_SCHEDULER_TaskContext *tc)
2227 struct LCFContextQueue *lcfq;
2230 shutdown_task_id = GNUNET_SCHEDULER_NO_TASK;
2231 LOG (GNUNET_ERROR_TYPE_DEBUG, "Shutting down testbed service\n");
2232 (void) GNUNET_CONTAINER_multihashmap_iterate (ss_map, &ss_map_free_iterator,
2234 GNUNET_CONTAINER_multihashmap_destroy (ss_map);
2235 if (NULL != lcfq_head)
2237 if (GNUNET_SCHEDULER_NO_TASK != lcf_proc_task_id)
2239 GNUNET_SCHEDULER_cancel (lcf_proc_task_id);
2240 lcf_proc_task_id = GNUNET_SCHEDULER_NO_TASK;
2242 if (NULL != lcfq_head->lcf->rhandle)
2243 GNUNET_TESTBED_cancel_registration (lcfq_head->lcf->rhandle);
2245 GNUNET_assert (GNUNET_SCHEDULER_NO_TASK == lcf_proc_task_id);
2246 for (lcfq = lcfq_head; NULL != lcfq; lcfq = lcfq_head)
2248 GNUNET_free (lcfq->lcf->msg);
2249 GNUNET_free (lcfq->lcf);
2250 GNUNET_CONTAINER_DLL_remove (lcfq_head, lcfq_tail, lcfq);
2253 /* Clear peer list */
2254 for (id = 0; id < peer_list_size; id++)
2255 if (NULL != peer_list[id])
2257 if (GNUNET_NO == peer_list[id]->is_remote)
2259 GNUNET_TESTING_peer_destroy (peer_list[id]->details.local.peer);
2260 GNUNET_CONFIGURATION_destroy (peer_list[id]->details.local.cfg);
2262 GNUNET_free (peer_list[id]);
2264 GNUNET_free_non_null (peer_list);
2265 /* Clear host list */
2266 for (id = 0; id < host_list_size; id++)
2267 if (NULL != host_list[id])
2268 GNUNET_TESTBED_host_destroy (host_list[id]);
2269 GNUNET_free_non_null (host_list);
2270 /* Clear route list */
2271 for (id = 0; id < route_list_size; id++)
2272 if (NULL != route_list[id])
2273 GNUNET_free (route_list[id]);
2274 GNUNET_free_non_null (route_list);
2275 /* Clear slave_list */
2276 for (id = 0; id < slave_list_size; id++)
2277 if (NULL != slave_list[id])
2279 if (NULL != slave_list[id]->controller)
2280 GNUNET_TESTBED_controller_disconnect (slave_list[id]->controller);
2281 if (NULL != slave_list[id]->controller_proc)
2282 GNUNET_TESTBED_controller_stop (slave_list[id]->controller_proc);
2284 if (NULL != master_context)
2286 GNUNET_free_non_null (master_context->master_ip);
2287 if (NULL != master_context->system)
2288 GNUNET_TESTING_system_destroy (master_context->system, GNUNET_YES);
2289 GNUNET_free (master_context);
2290 master_context = NULL;
2296 * Callback for client disconnect
2299 * @param client the client which has disconnected
2302 client_disconnect_cb (void *cls, struct GNUNET_SERVER_Client *client)
2304 if (NULL == master_context)
2306 if (client == master_context->client)
2308 LOG (GNUNET_ERROR_TYPE_DEBUG, "Master client disconnected\n");
2309 GNUNET_SERVER_client_drop (client);
2310 /* should not be needed as we're terminated by failure to read
2311 from stdin, but if stdin fails for some reason, this shouldn't
2312 hurt for now --- might need to revise this later if we ever
2313 decide that master connections might be temporarily down
2315 //GNUNET_SCHEDULER_shutdown ();
2323 * @param cls closure
2324 * @param server the initialized server
2325 * @param cfg configuration to use
2328 testbed_run (void *cls,
2329 struct GNUNET_SERVER_Handle *server,
2330 const struct GNUNET_CONFIGURATION_Handle *cfg)
2332 static const struct GNUNET_SERVER_MessageHandler message_handlers[] =
2334 {&handle_init, NULL, GNUNET_MESSAGE_TYPE_TESTBED_INIT, 0},
2335 {&handle_add_host, NULL, GNUNET_MESSAGE_TYPE_TESTBED_ADDHOST, 0},
2336 {&handle_configure_shared_service, NULL,
2337 GNUNET_MESSAGE_TYPE_TESTBED_SERVICESHARE, 0},
2338 {&handle_link_controllers, NULL,
2339 GNUNET_MESSAGE_TYPE_TESTBED_LCONTROLLERS, 0},
2340 {&handle_peer_create, NULL, GNUNET_MESSAGE_TYPE_TESTBED_CREATEPEER, 0},
2341 {&handle_peer_destroy, NULL, GNUNET_MESSAGE_TYPE_TESTBED_DESTROYPEER,
2342 sizeof (struct GNUNET_TESTBED_PeerDestroyMessage)},
2343 {&handle_peer_start, NULL, GNUNET_MESSAGE_TYPE_TESTBED_STARTPEER,
2344 sizeof (struct GNUNET_TESTBED_PeerStartMessage)},
2345 {&handle_peer_stop, NULL, GNUNET_MESSAGE_TYPE_TESTBED_STOPPEER,
2346 sizeof (struct GNUNET_TESTBED_PeerStopMessage)},
2347 {&handle_peer_get_config, NULL, GNUNET_MESSAGE_TYPE_TESTBED_GETPEERCONFIG,
2348 sizeof (struct GNUNET_TESTBED_PeerGetConfigurationMessage)},
2349 {&handle_overlay_connect, NULL, GNUNET_MESSAGE_TYPE_TESTBED_OLCONNECT,
2350 sizeof (struct GNUNET_TESTBED_OverlayConnectMessage)},
2354 GNUNET_SERVER_add_handlers (server,
2356 GNUNET_SERVER_disconnect_notify (server,
2357 &client_disconnect_cb,
2359 ss_map = GNUNET_CONTAINER_multihashmap_create (5);
2361 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_FOREVER_REL,
2364 LOG_DEBUG ("Testbed startup complete\n");
2369 * The starting point of execution
2371 int main (int argc, char *const *argv)
2373 //sleep (15); /* Debugging */
2376 GNUNET_SERVICE_run (argc,
2379 GNUNET_SERVICE_OPTION_NONE,