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)
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)
785 peer_list[peer->id] = NULL;
786 while (peer_list_size >= LIST_GROW_STEP)
788 for (id = peer_list_size - 1;
789 id > peer_list_size - LIST_GROW_STEP; id--)
790 if (NULL != peer_list[id])
792 if (id != peer_list_size - LIST_GROW_STEP)
794 peer_list_size -= LIST_GROW_STEP;
796 peer_list = GNUNET_realloc (peer_list, sizeof (struct GNUNET_TESTBED_Peer*)
802 * Finds the route with directly connected host as destination through which
803 * the destination host can be reached
805 * @param host_id the id of the destination host
806 * @return the route with directly connected destination host; NULL if no route
809 static struct Route *
810 find_dest_route (uint32_t host_id)
814 while(NULL != (route = route_list[host_id]))
816 if (route->thru == master_context->host_id)
818 host_id = route->thru;
825 * Routes message to a host given its host_id
827 * @param host_id the id of the destination host
828 * @param msg the message to be routed
831 route_message (uint32_t host_id, const struct GNUNET_MessageHeader *msg)
838 * Send operation failure message to client
840 * @param client the client to which the failure message has to be sent to
841 * @param operation_id the id of the failed operation
842 * @param emsg the error message; can be NULL
845 send_operation_fail_msg (struct GNUNET_SERVER_Client *client,
846 uint64_t operation_id,
849 struct GNUNET_TESTBED_OperationFailureEventMessage *msg;
853 msize = sizeof (struct GNUNET_TESTBED_OperationFailureEventMessage);
854 emsg_len = (NULL == emsg) ? 0 : strlen (emsg) + 1;
856 msg = GNUNET_malloc (msize);
857 msg->header.size = htons (msize);
858 msg->header.type = htons (GNUNET_MESSAGE_TYPE_TESTBED_OPERATIONEVENT);
859 msg->event_type = htonl (GNUNET_TESTBED_ET_OPERATION_FINISHED);
860 msg->operation_id = GNUNET_htonll (operation_id);
862 memcpy (&msg[1], emsg, emsg_len);
863 queue_message (client, &msg->header);
868 * Function to send generic operation success message to given client
870 * @param client the client to send the message to
871 * @param operation_id the id of the operation which was successful
874 send_operation_success_msg (struct GNUNET_SERVER_Client *client,
875 uint64_t operation_id)
877 struct GNUNET_TESTBED_GenericOperationSuccessEventMessage *msg;
880 msize = sizeof (struct GNUNET_TESTBED_GenericOperationSuccessEventMessage);
881 msg = GNUNET_malloc (msize);
882 msg->header.size = htons (msize);
883 msg->header.type = htons (GNUNET_MESSAGE_TYPE_TESTBED_GENERICOPSUCCESS);
884 msg->operation_id = GNUNET_htonll (operation_id);
885 msg->event_type = htonl (GNUNET_TESTBED_ET_OPERATION_FINISHED);
886 queue_message (client, &msg->header);
891 * The Link Controller forwarding task
893 * @param cls the LCFContext
894 * @param tc the Task context from scheduler
897 lcf_proc_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc);
901 * Completion callback for host registrations while forwarding Link Controller messages
903 * @param cls the LCFContext
904 * @param emsg the error message; NULL if host registration is successful
907 lcf_proc_cc (void *cls, const char *emsg)
909 struct LCFContext *lcf = cls;
912 GNUNET_assert (GNUNET_SCHEDULER_NO_TASK == lcf_proc_task_id);
917 goto registration_error;
918 lcf->state = DELEGATED_HOST_REGISTERED;
919 lcf_proc_task_id = GNUNET_SCHEDULER_add_now (&lcf_proc_task, lcf);
921 case DELEGATED_HOST_REGISTERED:
923 goto registration_error;
924 lcf->state = SLAVE_HOST_REGISTERED;
925 lcf_proc_task_id = GNUNET_SCHEDULER_add_now (&lcf_proc_task, lcf);
928 GNUNET_assert (0); /* Shouldn't reach here */
933 LOG (GNUNET_ERROR_TYPE_WARNING,
934 "Host registration failed with message: %s\n", emsg);
935 lcf->state = FINISHED;
936 lcf_proc_task_id = GNUNET_SCHEDULER_add_now (&lcf_proc_task, lcf);
941 * Callback to be called when forwarded link controllers operation is
942 * successfull. We have to relay the reply msg back to the client
944 * @param cls ForwardedOperationContext
945 * @param msg the peer create success message
948 forwarded_operation_reply_relay (void *cls,
949 const struct GNUNET_MessageHeader *msg)
951 struct ForwardedOperationContext *fopc = cls;
952 struct GNUNET_MessageHeader *dup_msg;
955 msize = ntohs (msg->size);
956 dup_msg = GNUNET_malloc (msize);
957 (void) memcpy (dup_msg, msg, msize);
958 queue_message (fopc->client, dup_msg);
959 GNUNET_SERVER_client_drop (fopc->client);
960 GNUNET_SCHEDULER_cancel (fopc->timeout_task);
966 * Task to free resources when forwarded link controllers has been timedout
968 * @param cls the ForwardedOperationContext
969 * @param tc the task context from scheduler
972 forwarded_operation_timeout (void *cls,
973 const struct GNUNET_SCHEDULER_TaskContext
976 struct ForwardedOperationContext *fopc = cls;
978 GNUNET_TESTBED_forward_operation_msg_cancel_ (fopc->opc);
979 send_operation_fail_msg (fopc->client, fopc->operation_id, "Timeout");
980 GNUNET_SERVER_client_drop (fopc->client);
986 * The Link Controller forwarding task
988 * @param cls the LCFContext
989 * @param tc the Task context from scheduler
992 lcf_proc_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
994 struct LCFContext *lcf = cls;
995 struct LCFContextQueue *lcfq;
996 struct ForwardedOperationContext *fopc;
998 lcf_proc_task_id = GNUNET_SCHEDULER_NO_TASK;
1003 GNUNET_TESTBED_is_host_registered_ (host_list[lcf->delegated_host_id],
1004 lcf->gateway->controller))
1007 GNUNET_TESTBED_register_host (lcf->gateway->controller,
1008 host_list[lcf->delegated_host_id],
1013 lcf->state = DELEGATED_HOST_REGISTERED;
1014 lcf_proc_task_id = GNUNET_SCHEDULER_add_now (&lcf_proc_task, lcf);
1017 case DELEGATED_HOST_REGISTERED:
1019 GNUNET_TESTBED_is_host_registered_ (host_list[lcf->slave_host_id],
1020 lcf->gateway->controller))
1023 GNUNET_TESTBED_register_host (lcf->gateway->controller,
1024 host_list[lcf->slave_host_id],
1029 lcf->state = SLAVE_HOST_REGISTERED;
1030 lcf_proc_task_id = GNUNET_SCHEDULER_add_now (&lcf_proc_task, lcf);
1033 case SLAVE_HOST_REGISTERED:
1034 fopc = GNUNET_malloc (sizeof (struct ForwardedOperationContext));
1035 fopc->client = lcf->client;
1036 fopc->operation_id = lcf->operation_id;
1038 GNUNET_TESTBED_forward_operation_msg_ (lcf->gateway->controller,
1041 &forwarded_operation_reply_relay,
1043 fopc->timeout_task =
1044 GNUNET_SCHEDULER_add_delayed (TIMEOUT,
1045 &forwarded_operation_timeout, fopc);
1046 lcf->state = FINISHED;
1047 lcf_proc_task_id = GNUNET_SCHEDULER_add_now (&lcf_proc_task, lcf);
1051 GNUNET_assert (lcfq->lcf == lcf);
1052 GNUNET_free (lcf->msg);
1054 GNUNET_CONTAINER_DLL_remove (lcfq_head, lcfq_tail, lcfq);
1056 if (NULL != lcfq_head)
1058 GNUNET_SCHEDULER_add_now (&lcf_proc_task, lcfq_head->lcf);
1064 * Callback for event from slave controllers
1066 * @param cls struct Slave *
1067 * @param event information about the event
1070 slave_event_callback (void *cls,
1071 const struct GNUNET_TESTBED_EventInformation *event)
1078 * Callback to signal successfull startup of the controller process
1080 * @param cls the closure from GNUNET_TESTBED_controller_start()
1081 * @param cfg the configuration with which the controller has been started;
1082 * NULL if status is not GNUNET_OK
1083 * @param status GNUNET_OK if the startup is successfull; GNUNET_SYSERR if not,
1084 * GNUNET_TESTBED_controller_stop() shouldn't be called in this case
1087 slave_status_callback (void *cls,
1088 const struct GNUNET_CONFIGURATION_Handle *cfg,
1091 struct LinkControllersContext *lcc = cls;
1093 if (GNUNET_SYSERR == status)
1095 lcc->slave->controller_proc = NULL;
1096 LOG (GNUNET_ERROR_TYPE_WARNING,
1097 "Unexpected slave shutdown\n");
1098 GNUNET_SCHEDULER_shutdown (); /* We too shutdown */
1101 lcc->slave->controller =
1102 GNUNET_TESTBED_controller_connect (cfg, host_list[lcc->slave->host_id],
1103 master_context->event_mask,
1104 &slave_event_callback, lcc->slave);
1105 if (NULL != lcc->slave->controller)
1106 send_operation_success_msg (lcc->client, lcc->operation_id);
1108 send_operation_fail_msg (lcc->client, lcc->operation_id,
1109 "Could not connect to delegated controller");
1110 GNUNET_SERVER_client_drop (lcc->client);
1116 * Message handler for GNUNET_MESSAGE_TYPE_TESTBED_INIT messages
1119 * @param client identification of the client
1120 * @param message the actual message
1123 handle_init (void *cls,
1124 struct GNUNET_SERVER_Client *client,
1125 const struct GNUNET_MessageHeader *message)
1127 const struct GNUNET_TESTBED_InitMessage *msg;
1128 struct GNUNET_TESTBED_Host *host;
1129 const char *controller_hostname;
1132 if (NULL != master_context)
1135 GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
1138 msg = (const struct GNUNET_TESTBED_InitMessage *) message;
1139 msize = ntohs (message->size);
1140 if (msize <= sizeof (struct GNUNET_TESTBED_InitMessage))
1143 GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
1146 msize -= sizeof (struct GNUNET_TESTBED_InitMessage);
1147 controller_hostname = (const char *) &msg[1];
1148 if ('\0' != controller_hostname[msize - 1])
1151 GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
1154 master_context = GNUNET_malloc (sizeof (struct Context));
1155 master_context->client = client;
1156 master_context->host_id = ntohl (msg->host_id);
1157 master_context->master_ip = GNUNET_strdup (controller_hostname);
1158 LOG_DEBUG ("Master Controller IP: %s\n", master_context->master_ip);
1159 master_context->system =
1160 GNUNET_TESTING_system_create ("testbed", master_context->master_ip);
1161 host = GNUNET_TESTBED_host_create_with_id (master_context->host_id,
1163 host_list_add (host);
1164 master_context->event_mask = GNUNET_ntohll (msg->event_mask);
1165 GNUNET_SERVER_client_keep (client);
1166 LOG_DEBUG ("Created master context with host ID: %u\n",
1167 master_context->host_id);
1168 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1173 * Message handler for GNUNET_MESSAGE_TYPE_TESTBED_ADDHOST messages
1176 * @param client identification of the client
1177 * @param message the actual message
1180 handle_add_host (void *cls,
1181 struct GNUNET_SERVER_Client *client,
1182 const struct GNUNET_MessageHeader *message)
1184 struct GNUNET_TESTBED_Host *host;
1185 const struct GNUNET_TESTBED_AddHostMessage *msg;
1186 struct GNUNET_TESTBED_HostConfirmedMessage *reply;
1191 uint16_t username_length;
1192 uint16_t hostname_length;
1193 uint16_t reply_size;
1196 msg = (const struct GNUNET_TESTBED_AddHostMessage *) message;
1197 msize = ntohs (msg->header.size);
1198 username = (char *) &(msg[1]);
1199 username_length = ntohs (msg->user_name_length);
1200 GNUNET_assert (msize > (sizeof (struct GNUNET_TESTBED_AddHostMessage)
1201 + username_length + 1)); /* msg must contain hostname */
1202 if (0 != username_length)
1203 GNUNET_assert ('\0' == username[username_length]);
1204 username_length = (0 == username_length) ? 0 : username_length + 1;
1205 hostname = username + username_length;
1206 hostname_length = msize - (sizeof (struct GNUNET_TESTBED_AddHostMessage)
1208 GNUNET_assert ('\0' == hostname[hostname_length - 1]);
1209 GNUNET_assert (strlen (hostname) == hostname_length - 1);
1210 host_id = ntohl (msg->host_id);
1211 LOG_DEBUG ("Received ADDHOST message\n");
1212 LOG_DEBUG ("-------host id: %u\n", host_id);
1213 if (NULL != hostname) LOG_DEBUG ("-------hostname: %s\n", hostname);
1214 if (0 != username_length) LOG_DEBUG ("-------username: %s\n", username);
1217 LOG_DEBUG ("-------username: NULL\n");
1220 LOG_DEBUG ("-------ssh port: %u\n", ntohs (msg->ssh_port));
1221 host = GNUNET_TESTBED_host_create_with_id (host_id, hostname, username,
1222 ntohs (msg->ssh_port));
1223 GNUNET_assert (NULL != host);
1224 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1225 reply_size = sizeof (struct GNUNET_TESTBED_HostConfirmedMessage);
1226 if (GNUNET_OK != host_list_add (host))
1228 /* We are unable to add a host */
1229 emsg = "A host exists with given host-id";
1230 LOG_DEBUG ("%s: %u", emsg, host_id);
1231 GNUNET_TESTBED_host_destroy (host);
1232 reply_size += strlen (emsg) + 1;
1233 reply = GNUNET_malloc (reply_size);
1234 memcpy (&reply[1], emsg, strlen (emsg) + 1);
1237 reply = GNUNET_malloc (reply_size);
1238 reply->header.type = htons (GNUNET_MESSAGE_TYPE_TESTBED_ADDHOSTCONFIRM);
1239 reply->header.size = htons (reply_size);
1240 reply->host_id = htonl (host_id);
1241 queue_message (client, &reply->header);
1246 * Iterator over hash map entries.
1248 * @param cls closure
1249 * @param key current key code
1250 * @param value value in the hash map
1251 * @return GNUNET_YES if we should continue to
1255 int ss_exists_iterator (void *cls,
1256 const struct GNUNET_HashCode * key,
1259 struct SharedService *queried_ss = cls;
1260 struct SharedService *ss = value;
1262 if (0 == strcmp (ss->name, queried_ss->name))
1270 * Message handler for GNUNET_MESSAGE_TYPE_TESTBED_ADDHOST messages
1273 * @param client identification of the client
1274 * @param message the actual message
1277 handle_configure_shared_service (void *cls,
1278 struct GNUNET_SERVER_Client *client,
1279 const struct GNUNET_MessageHeader *message)
1281 const struct GNUNET_TESTBED_ConfigureSharedServiceMessage *msg;
1282 struct SharedService *ss;
1284 struct GNUNET_HashCode hash;
1286 uint16_t service_name_size;
1288 msg = (const struct GNUNET_TESTBED_ConfigureSharedServiceMessage *) message;
1289 msg_size = ntohs (message->size);
1290 if (msg_size <= sizeof (struct GNUNET_TESTBED_ConfigureSharedServiceMessage))
1293 GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
1296 service_name_size = msg_size -
1297 sizeof (struct GNUNET_TESTBED_ConfigureSharedServiceMessage);
1298 service_name = (char *) &msg[1];
1299 if ('\0' != service_name[service_name_size - 1])
1302 GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
1305 LOG_DEBUG ("Received service sharing request for %s, with %d peers\n",
1306 service_name, ntohl (msg->num_peers));
1307 if (ntohl (msg->host_id) != master_context->host_id)
1309 route_message (ntohl (msg->host_id), message);
1310 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1313 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1314 ss = GNUNET_malloc (sizeof (struct SharedService));
1315 ss->name = strdup (service_name);
1316 ss->num_shared = ntohl (msg->num_peers);
1317 GNUNET_CRYPTO_hash (ss->name, service_name_size, &hash);
1318 if (GNUNET_SYSERR ==
1319 GNUNET_CONTAINER_multihashmap_get_multiple (ss_map, &hash,
1320 &ss_exists_iterator, ss))
1322 LOG (GNUNET_ERROR_TYPE_WARNING,
1323 "Service %s already configured as a shared service. "
1324 "Ignoring service sharing request \n", ss->name);
1325 GNUNET_free (ss->name);
1329 GNUNET_CONTAINER_multihashmap_put (ss_map, &hash, ss,
1330 GNUNET_CONTAINER_MULTIHASHMAPOPTION_MULTIPLE);
1335 * Message handler for GNUNET_MESSAGE_TYPE_TESTBED_LCONTROLLERS message
1338 * @param client identification of the client
1339 * @param message the actual message
1342 handle_link_controllers (void *cls,
1343 struct GNUNET_SERVER_Client *client,
1344 const struct GNUNET_MessageHeader *message)
1346 const struct GNUNET_TESTBED_ControllerLinkMessage *msg;
1347 struct GNUNET_CONFIGURATION_Handle *cfg;
1348 struct LCFContextQueue *lcfq;
1349 struct Route *route;
1350 struct Route *new_route;
1354 uint32_t delegated_host_id;
1355 uint32_t slave_host_id;
1358 if (NULL == master_context)
1361 GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
1364 msize = ntohs (message->size);
1365 if (sizeof (struct GNUNET_TESTBED_ControllerLinkMessage) >= msize)
1368 GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
1371 msg = (const struct GNUNET_TESTBED_ControllerLinkMessage *) message;
1372 delegated_host_id = ntohl (msg->delegated_host_id);
1373 if (delegated_host_id == master_context->host_id)
1376 LOG (GNUNET_ERROR_TYPE_WARNING, "Trying to link ourselves\n");
1377 GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
1380 if ((delegated_host_id >= host_list_size) ||
1381 (NULL == host_list[delegated_host_id]))
1383 LOG (GNUNET_ERROR_TYPE_WARNING, "Delegated host not registered with us\n");
1384 GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
1387 slave_host_id = ntohl (msg->slave_host_id);
1388 if ((slave_host_id >= host_list_size) || (NULL == host_list[slave_host_id]))
1390 LOG (GNUNET_ERROR_TYPE_WARNING, "Slave host not registered with us\n");
1391 GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
1394 if (slave_host_id == delegated_host_id)
1396 LOG (GNUNET_ERROR_TYPE_WARNING, "Slave and delegated host are same\n");
1397 GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
1401 if (slave_host_id == master_context->host_id) /* Link from us */
1403 struct Slave *slave;
1405 msize -= sizeof (struct GNUNET_TESTBED_ControllerLinkMessage);
1406 config_size = ntohs (msg->config_size);
1407 if ((delegated_host_id < slave_list_size) &&
1408 (NULL != slave_list[delegated_host_id])) /* We have already added */
1410 LOG (GNUNET_ERROR_TYPE_WARNING, "Host %u already connected\n",
1412 GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
1415 config = GNUNET_malloc (config_size);
1416 dest_size = (uLongf) config_size;
1417 if (Z_OK != uncompress ((Bytef *) config, &dest_size,
1418 (const Bytef *) &msg[1], (uLong) msize))
1420 GNUNET_break (0); /* Compression error */
1421 GNUNET_free (config);
1422 GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
1425 if (config_size != dest_size)
1427 LOG (GNUNET_ERROR_TYPE_WARNING, "Uncompressed config size mismatch\n");
1428 GNUNET_free (config);
1429 GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
1432 cfg = GNUNET_CONFIGURATION_create (); /* Free here or in lcfcontext */
1433 if (GNUNET_OK != GNUNET_CONFIGURATION_deserialize (cfg, config, config_size,
1436 GNUNET_break (0); /* Configuration parsing error */
1437 GNUNET_free (config);
1438 GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
1441 GNUNET_free (config);
1442 if ((delegated_host_id < slave_list_size) &&
1443 (NULL != slave_list[delegated_host_id]))
1445 GNUNET_break (0); /* Configuration parsing error */
1446 GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
1449 slave = GNUNET_malloc (sizeof (struct Slave));
1450 slave->host_id = delegated_host_id;
1451 slave_list_add (slave);
1452 if (1 == msg->is_subordinate)
1454 struct LinkControllersContext *lcc;
1455 lcc = GNUNET_malloc (sizeof (struct LinkControllersContext));
1456 lcc->operation_id = GNUNET_ntohll (msg->operation_id);
1457 GNUNET_SERVER_client_keep (client);
1458 lcc->client = client;
1460 slave->controller_proc =
1461 GNUNET_TESTBED_controller_start (master_context->master_ip,
1462 host_list[slave->host_id],
1463 cfg, &slave_status_callback,
1468 GNUNET_TESTBED_controller_connect (cfg, host_list[slave->host_id],
1469 master_context->event_mask,
1470 &slave_event_callback, slave);
1471 if (NULL != slave->controller)
1472 send_operation_success_msg (client, GNUNET_ntohll (msg->operation_id));
1474 send_operation_fail_msg (client, GNUNET_ntohll (msg->operation_id),
1475 "Could not connect to delegated controller");
1477 GNUNET_CONFIGURATION_destroy (cfg);
1478 new_route = GNUNET_malloc (sizeof (struct Route));
1479 new_route->dest = delegated_host_id;
1480 new_route->thru = master_context->host_id;
1481 route_list_add (new_route);
1482 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1486 /* Route the request */
1487 if (slave_host_id >= route_list_size)
1489 LOG (GNUNET_ERROR_TYPE_WARNING, "No route towards slave host");
1490 GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
1493 lcfq = GNUNET_malloc (sizeof (struct LCFContextQueue));
1494 lcfq->lcf = GNUNET_malloc (sizeof (struct LCFContext));
1495 lcfq->lcf->delegated_host_id = delegated_host_id;
1496 lcfq->lcf->slave_host_id = slave_host_id;
1497 route = find_dest_route (slave_host_id);
1498 GNUNET_assert (NULL != route); /* because we add routes carefully */
1499 GNUNET_assert (route->dest < slave_list_size);
1500 GNUNET_assert (NULL != slave_list[route->dest]);
1501 lcfq->lcf->state = INIT;
1502 lcfq->lcf->operation_id = GNUNET_ntohll (msg->operation_id);
1503 lcfq->lcf->gateway = slave_list[route->dest];
1504 lcfq->lcf->msg = GNUNET_malloc (msize);
1505 (void) memcpy (lcfq->lcf->msg, msg, msize);
1506 GNUNET_SERVER_client_keep (client);
1507 lcfq->lcf->client = client;
1508 if (NULL == lcfq_head)
1510 GNUNET_assert (GNUNET_SCHEDULER_NO_TASK == lcf_proc_task_id);
1511 GNUNET_CONTAINER_DLL_insert_tail (lcfq_head, lcfq_tail, lcfq);
1512 lcf_proc_task_id = GNUNET_SCHEDULER_add_now (&lcf_proc_task, lcfq->lcf);
1515 GNUNET_CONTAINER_DLL_insert_tail (lcfq_head, lcfq_tail, lcfq);
1516 /* FIXME: Adding a new route should happen after the controllers are linked
1518 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1519 new_route = GNUNET_malloc (sizeof (struct Route));
1520 new_route->dest = delegated_host_id;
1521 new_route->thru = route->dest;
1522 route_list_add (new_route);
1527 * The task to be executed if the forwarded peer create operation has been
1530 * @param cls the FowardedOperationContext
1531 * @param tc the TaskContext from the scheduler
1534 peer_create_forward_timeout (void *cls,
1535 const struct GNUNET_SCHEDULER_TaskContext *tc)
1537 struct ForwardedOperationContext *fo_ctxt = cls;
1539 /* send error msg to client */
1540 send_operation_fail_msg (fo_ctxt->client, fo_ctxt->operation_id,
1542 GNUNET_SERVER_client_drop (fo_ctxt->client);
1543 GNUNET_TESTBED_forward_operation_msg_cancel_ (fo_ctxt->opc);
1544 GNUNET_free (fo_ctxt);
1549 * Callback to be called when forwarded peer create operation is
1550 * successfull. We have to relay the reply msg back to the client
1552 * @param cls ForwardedOperationContext
1553 * @param msg the peer create success message
1556 peer_create_success_cb (void *cls,
1557 const struct GNUNET_MessageHeader *msg)
1559 struct ForwardedOperationContext *fo_ctxt = cls;
1560 const struct GNUNET_TESTBED_PeerCreateSuccessEventMessage *success_msg;
1561 struct GNUNET_MessageHeader *dup_msg;
1565 GNUNET_SCHEDULER_cancel (fo_ctxt->timeout_task);
1566 if (ntohs (msg->type) == GNUNET_MESSAGE_TYPE_TESTBED_PEERCREATESUCCESS)
1569 = (const struct GNUNET_TESTBED_PeerCreateSuccessEventMessage *) msg;
1570 peer = GNUNET_malloc (sizeof (struct Peer));
1571 peer->is_remote = GNUNET_YES;
1572 peer->id = ntohl (success_msg->peer_id);
1573 GNUNET_assert (NULL != fo_ctxt->cls);
1574 peer->details.remote.controller = fo_ctxt->cls;
1575 peer_list_add (peer);
1577 msize = ntohs (msg->size);
1578 dup_msg = GNUNET_malloc (msize);
1579 (void) memcpy (dup_msg, msg, msize);
1580 queue_message (fo_ctxt->client, dup_msg);
1581 GNUNET_SERVER_client_drop (fo_ctxt->client);
1582 GNUNET_free (fo_ctxt);
1588 * Handler for GNUNET_MESSAGE_TYPE_TESTBED_CREATEPEER messages
1591 * @param client identification of the client
1592 * @param message the actual message
1595 handle_peer_create (void *cls,
1596 struct GNUNET_SERVER_Client *client,
1597 const struct GNUNET_MessageHeader *message)
1599 const struct GNUNET_TESTBED_PeerCreateMessage *msg;
1600 struct GNUNET_TESTBED_PeerCreateSuccessEventMessage *reply;
1601 struct GNUNET_CONFIGURATION_Handle *cfg;
1602 struct ForwardedOperationContext *fo_ctxt;
1603 struct Route *route;
1608 uint32_t config_size;
1613 msize = ntohs (message->size);
1614 if (msize <= sizeof (struct GNUNET_TESTBED_PeerCreateMessage))
1616 GNUNET_break (0); /* We need configuration */
1617 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1620 msg = (const struct GNUNET_TESTBED_PeerCreateMessage *) message;
1621 host_id = ntohl (msg->host_id);
1622 if (host_id == master_context->host_id)
1626 /* We are responsible for this peer */
1627 msize -= sizeof (struct GNUNET_TESTBED_PeerCreateMessage);
1628 config_size = ntohl (msg->config_size);
1629 config = GNUNET_malloc (config_size);
1630 dest_size = config_size;
1631 if (Z_OK != (ret = uncompress ((Bytef *) config, (uLongf *) &dest_size,
1632 (const Bytef *) &msg[1], (uLong) msize)))
1634 GNUNET_break (0); /* uncompression error */
1635 GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
1638 if (config_size != dest_size)
1640 GNUNET_break (0);/* Uncompressed config size mismatch */
1641 GNUNET_free (config);
1642 GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
1645 cfg = GNUNET_CONFIGURATION_create ();
1646 if (GNUNET_OK != GNUNET_CONFIGURATION_deserialize (cfg, config, config_size,
1649 GNUNET_break (0); /* Configuration parsing error */
1650 GNUNET_free (config);
1651 GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
1654 GNUNET_free (config);
1655 peer = GNUNET_malloc (sizeof (struct Peer));
1656 peer->is_remote = GNUNET_NO;
1657 peer->details.local.cfg = cfg;
1658 peer->id = ntohl (msg->peer_id);
1659 LOG_DEBUG ("Creating peer with id: %u\n", peer->id);
1660 peer->details.local.peer =
1661 GNUNET_TESTING_peer_configure (master_context->system,
1662 peer->details.local.cfg, peer->id,
1665 if (NULL == peer->details.local.peer)
1667 LOG (GNUNET_ERROR_TYPE_WARNING, "Configuring peer failed: %s\n", emsg);
1671 GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
1674 peer_list_add (peer);
1675 reply = GNUNET_malloc (sizeof (struct GNUNET_TESTBED_PeerCreateSuccessEventMessage));
1676 reply->header.size = htons (sizeof (struct GNUNET_TESTBED_PeerCreateSuccessEventMessage));
1677 reply->header.type = htons (GNUNET_MESSAGE_TYPE_TESTBED_PEERCREATESUCCESS);
1678 reply->peer_id = msg->peer_id;
1679 reply->operation_id = msg->operation_id;
1680 queue_message (client, &reply->header);
1681 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1685 /* Forward peer create request */
1686 route = find_dest_route (host_id);
1690 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1693 fo_ctxt = GNUNET_malloc (sizeof (struct ForwardedOperationContext));
1694 GNUNET_SERVER_client_keep (client);
1695 fo_ctxt->client = client;
1696 fo_ctxt->operation_id = GNUNET_ntohll (msg->operation_id);
1697 fo_ctxt->cls = slave_list[route->dest]->controller;
1699 GNUNET_TESTBED_forward_operation_msg_ (slave_list[route->dest]->controller,
1700 fo_ctxt->operation_id,
1702 peer_create_success_cb, fo_ctxt);
1703 fo_ctxt->timeout_task =
1704 GNUNET_SCHEDULER_add_delayed (TIMEOUT,
1705 &peer_create_forward_timeout, fo_ctxt);
1707 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1712 * Message handler for GNUNET_MESSAGE_TYPE_TESTBED_DESTROYPEER messages
1715 * @param client identification of the client
1716 * @param message the actual message
1719 handle_peer_destroy (void *cls,
1720 struct GNUNET_SERVER_Client *client,
1721 const struct GNUNET_MessageHeader *message)
1723 const struct GNUNET_TESTBED_PeerDestroyMessage *msg;
1724 struct ForwardedOperationContext *fopc;
1728 msg = (const struct GNUNET_TESTBED_PeerDestroyMessage *) message;
1729 peer_id = ntohl (msg->peer_id);
1730 LOG_DEBUG ("Received peer destory on peer: %u and operation id: %ul\n",
1731 peer_id, GNUNET_ntohll (msg->operation_id));
1732 if ((peer_list_size <= peer_id) || (NULL == peer_list[peer_id]))
1734 LOG (GNUNET_ERROR_TYPE_ERROR,
1735 "Asked to destroy a non existent peer with id: %u\n", peer_id);
1736 send_operation_fail_msg (client, GNUNET_ntohll (msg->operation_id),
1737 "Peer doesn't exist");
1738 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1741 peer = peer_list[peer_id];
1742 if (GNUNET_YES == peer->is_remote)
1744 /* Forward the destory message to sub controller */
1745 fopc = GNUNET_malloc (sizeof (struct ForwardedOperationContext));
1746 GNUNET_SERVER_client_keep (client);
1747 fopc->client = client;
1748 fopc->operation_id = GNUNET_ntohll (msg->operation_id);
1750 GNUNET_TESTBED_forward_operation_msg_ (peer->details.remote.controller,
1753 &forwarded_operation_reply_relay,
1755 fopc->timeout_task =
1756 GNUNET_SCHEDULER_add_delayed (TIMEOUT,
1757 &forwarded_operation_timeout, fopc);
1758 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1761 GNUNET_TESTING_peer_destroy (peer->details.local.peer);
1762 GNUNET_CONFIGURATION_destroy (peer->details.local.cfg);
1763 peer_list_remove (peer);
1765 send_operation_success_msg (client, GNUNET_ntohll (msg->operation_id));
1766 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1771 * Message handler for GNUNET_MESSAGE_TYPE_TESTBED_DESTROYPEER messages
1774 * @param client identification of the client
1775 * @param message the actual message
1778 handle_peer_start (void *cls,
1779 struct GNUNET_SERVER_Client *client,
1780 const struct GNUNET_MessageHeader *message)
1782 const struct GNUNET_TESTBED_PeerStartMessage *msg;
1783 struct GNUNET_TESTBED_PeerEventMessage *reply;
1784 struct ForwardedOperationContext *fopc;
1788 msg = (const struct GNUNET_TESTBED_PeerStartMessage *) message;
1789 peer_id = ntohl (msg->peer_id);
1790 if ((peer_id >= peer_list_size)
1791 || (NULL == peer_list[peer_id]))
1794 LOG (GNUNET_ERROR_TYPE_ERROR,
1795 "Asked to start a non existent peer with id: %u\n", peer_id);
1796 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1799 peer = peer_list[peer_id];
1800 if (GNUNET_YES == peer->is_remote)
1802 fopc = GNUNET_malloc (sizeof (struct ForwardedOperationContext));
1803 GNUNET_SERVER_client_keep (client);
1804 fopc->client = client;
1805 fopc->operation_id = GNUNET_ntohll (msg->operation_id);
1807 GNUNET_TESTBED_forward_operation_msg_ (peer->details.remote.controller,
1810 &forwarded_operation_reply_relay,
1812 fopc->timeout_task =
1813 GNUNET_SCHEDULER_add_delayed (TIMEOUT,
1814 &forwarded_operation_timeout, fopc);
1815 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1819 GNUNET_TESTING_peer_start (peer->details.local.peer))
1821 send_operation_fail_msg (client, GNUNET_ntohll (msg->operation_id),
1823 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1826 reply = GNUNET_malloc (sizeof (struct GNUNET_TESTBED_PeerEventMessage));
1827 reply->header.type = htons (GNUNET_MESSAGE_TYPE_TESTBED_PEEREVENT);
1828 reply->header.size = htons (sizeof (struct GNUNET_TESTBED_PeerEventMessage));
1829 reply->event_type = htonl (GNUNET_TESTBED_ET_PEER_START);
1830 reply->host_id = htonl (master_context->host_id);
1831 reply->peer_id = msg->peer_id;
1832 reply->operation_id = msg->operation_id;
1833 queue_message (client, &reply->header);
1834 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1839 * Message handler for GNUNET_MESSAGE_TYPE_TESTBED_DESTROYPEER messages
1842 * @param client identification of the client
1843 * @param message the actual message
1846 handle_peer_stop (void *cls,
1847 struct GNUNET_SERVER_Client *client,
1848 const struct GNUNET_MessageHeader *message)
1850 const struct GNUNET_TESTBED_PeerStopMessage *msg;
1851 struct GNUNET_TESTBED_PeerEventMessage *reply;
1852 struct ForwardedOperationContext *fopc;
1856 msg = (const struct GNUNET_TESTBED_PeerStopMessage *) message;
1857 peer_id = ntohl (msg->peer_id);
1858 if ((peer_id >= peer_list_size) || (NULL == peer_list[peer_id]))
1860 send_operation_fail_msg (client, GNUNET_ntohll (msg->operation_id),
1862 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1865 peer = peer_list[peer_id];
1866 if (GNUNET_YES == peer->is_remote)
1868 fopc = GNUNET_malloc (sizeof (struct ForwardedOperationContext));
1869 GNUNET_SERVER_client_keep (client);
1870 fopc->client = client;
1871 fopc->operation_id = GNUNET_ntohll (msg->operation_id);
1873 GNUNET_TESTBED_forward_operation_msg_ (peer->details.remote.controller,
1876 &forwarded_operation_reply_relay,
1878 fopc->timeout_task =
1879 GNUNET_SCHEDULER_add_delayed (TIMEOUT,
1880 &forwarded_operation_timeout, fopc);
1881 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1885 GNUNET_TESTING_peer_stop (peer->details.local.peer))
1887 send_operation_fail_msg (client, GNUNET_ntohll (msg->operation_id),
1888 "Failed to stop peer");
1889 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1892 reply = GNUNET_malloc (sizeof (struct GNUNET_TESTBED_PeerEventMessage));
1893 reply->header.type = htons (GNUNET_MESSAGE_TYPE_TESTBED_PEEREVENT);
1894 reply->header.size = htons (sizeof (struct GNUNET_TESTBED_PeerEventMessage));
1895 reply->event_type = htonl (GNUNET_TESTBED_ET_PEER_STOP);
1896 reply->host_id = htonl (master_context->host_id);
1897 reply->peer_id = msg->peer_id;
1898 reply->operation_id = msg->operation_id;
1899 queue_message (client, &reply->header);
1900 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1905 * Handler for GNUNET_MESSAGE_TYPE_TESTBED_GETPEERCONFIG messages
1908 * @param client identification of the client
1909 * @param message the actual message
1912 handle_peer_get_config (void *cls,
1913 struct GNUNET_SERVER_Client *client,
1914 const struct GNUNET_MessageHeader *message)
1916 const struct GNUNET_TESTBED_PeerGetConfigurationMessage *msg;
1917 struct GNUNET_TESTBED_PeerConfigurationInformationMessage *reply;
1926 msg = (const struct GNUNET_TESTBED_PeerGetConfigurationMessage *) message;
1927 peer_id = ntohl (msg->peer_id);
1928 if ((peer_id >= peer_list_size) || (NULL == peer_list[peer_id]))
1930 send_operation_fail_msg (client, GNUNET_ntohll (msg->operation_id),
1932 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1935 peer = peer_list[peer_id];
1936 if (GNUNET_YES == peer->is_remote)
1938 /* FIXME: forward to sub controller */
1940 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1944 GNUNET_CONFIGURATION_serialize (peer_list[peer_id]->details.local.cfg,
1946 xc_size = GNUNET_TESTBED_compress_config_ (config, c_size, &xconfig);
1947 GNUNET_free (config);
1948 msize = xc_size + sizeof (struct
1949 GNUNET_TESTBED_PeerConfigurationInformationMessage);
1950 reply = GNUNET_realloc (xconfig, msize);
1951 (void) memmove (&reply[1], reply, xc_size);
1952 reply->header.size = htons (msize);
1953 reply->header.type = htons (GNUNET_MESSAGE_TYPE_TESTBED_PEERCONFIG);
1954 reply->peer_id = msg->peer_id;
1955 reply->operation_id = msg->operation_id;
1956 GNUNET_TESTING_peer_get_identity (peer_list[peer_id]->details.local.peer,
1957 &reply->peer_identity);
1958 reply->config_size = htons ((uint16_t) c_size);
1959 queue_message (client, &reply->header);
1960 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1965 * Task for cleaing up overlay connect context structure
1967 * @param cls the overlay connect context
1968 * @param tc the task context
1971 occ_cleanup (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
1973 struct OverlayConnectContext *occ = cls;
1975 GNUNET_free_non_null (occ->emsg);
1976 GNUNET_free_non_null (occ->hello);
1977 if (GNUNET_SCHEDULER_NO_TASK != occ->send_hello_task)
1978 GNUNET_SCHEDULER_cancel (occ->send_hello_task);
1979 if (NULL != occ->ch)
1980 GNUNET_CORE_disconnect (occ->ch);
1981 if (NULL != occ->ghh)
1982 GNUNET_TRANSPORT_get_hello_cancel (occ->ghh);
1983 if (NULL != occ->p1th)
1984 GNUNET_TRANSPORT_disconnect (occ->p1th);
1985 if (NULL != occ->p2th)
1986 GNUNET_TRANSPORT_disconnect (occ->p2th);
1992 * Task which will be run when overlay connect request has been timed out
1994 * @param cls the OverlayConnectContext
1995 * @param tc the TaskContext
1998 timeout_overlay_connect (void *cls,
1999 const struct GNUNET_SCHEDULER_TaskContext *tc)
2001 struct OverlayConnectContext *occ = cls;
2003 occ->timeout_task = GNUNET_SCHEDULER_NO_TASK;
2004 send_operation_fail_msg (occ->client, occ->op_id, occ->emsg);
2005 GNUNET_SERVER_client_drop (occ->client);
2006 occ_cleanup (occ, tc);
2012 * Function called to notify transport users that another
2013 * peer connected to us.
2015 * @param cls closure
2016 * @param new_peer the peer that connected
2017 * @param ats performance data
2018 * @param ats_count number of entries in ats (excluding 0-termination)
2021 overlay_connect_notify (void *cls,
2022 const struct GNUNET_PeerIdentity * new_peer,
2023 const struct GNUNET_ATS_Information * ats,
2024 unsigned int ats_count)
2026 struct OverlayConnectContext *occ = cls;
2027 struct GNUNET_TESTBED_ConnectionEventMessage *msg;
2029 char *other_peer_str;
2031 LOG_DEBUG ("Overlay connect notify\n");
2032 if (0 == memcmp (new_peer, &occ->peer_identity,
2033 sizeof (struct GNUNET_PeerIdentity)))
2035 new_peer_str = GNUNET_strdup (GNUNET_i2s (new_peer));
2036 other_peer_str = GNUNET_strdup (GNUNET_i2s (&occ->other_peer_identity));
2037 if (0 != memcmp (new_peer, &occ->other_peer_identity,
2038 sizeof (struct GNUNET_PeerIdentity)))
2040 LOG_DEBUG ("Unexpected peer %4s connected to peer %4s\n",
2041 new_peer_str, other_peer_str);
2042 GNUNET_free (new_peer_str);
2043 GNUNET_free (other_peer_str);
2046 LOG_DEBUG ("Peer %4s connected to peer %4s\n", new_peer_str, other_peer_str);
2047 GNUNET_free (new_peer_str);
2048 GNUNET_free (other_peer_str);
2049 if (GNUNET_SCHEDULER_NO_TASK != occ->send_hello_task)
2051 GNUNET_SCHEDULER_cancel (occ->send_hello_task);
2052 occ->send_hello_task = GNUNET_SCHEDULER_NO_TASK;
2054 GNUNET_assert (GNUNET_SCHEDULER_NO_TASK != occ->timeout_task);
2055 GNUNET_SCHEDULER_cancel (occ->timeout_task);
2056 occ->timeout_task = GNUNET_SCHEDULER_NO_TASK;
2057 GNUNET_free_non_null (occ->emsg);
2059 GNUNET_TRANSPORT_disconnect (occ->p1th);
2061 /* Peer 1 has connected connect to peer2 - now send overlay connect success message */
2062 LOG_DEBUG ("Peers connected - Sending overlay connect success\n");
2063 msg = GNUNET_malloc (sizeof (struct GNUNET_TESTBED_ConnectionEventMessage));
2064 msg->header.size = htons (sizeof (struct
2065 GNUNET_TESTBED_ConnectionEventMessage));
2066 msg->header.type = htons (GNUNET_MESSAGE_TYPE_TESTBED_PEERCONEVENT);
2067 msg->event_type = htonl (GNUNET_TESTBED_ET_CONNECT);
2068 msg->peer1 = htonl (occ->peer->id);
2069 msg->peer2 = htonl (occ->other_peer->id);
2070 msg->operation_id = GNUNET_htonll (occ->op_id);
2071 queue_message (occ->client, &msg->header);
2072 GNUNET_SERVER_client_drop (occ->client);
2073 GNUNET_SCHEDULER_add_now (&occ_cleanup, occ);
2078 send_hello (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
2080 struct OverlayConnectContext *occ = cls;
2081 char *other_peer_str;
2083 occ->send_hello_task = GNUNET_SCHEDULER_NO_TASK;
2084 if (0 != (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN))
2086 GNUNET_assert (NULL != occ->hello);
2087 other_peer_str = GNUNET_strdup (GNUNET_i2s (&occ->other_peer_identity));
2088 LOG_DEBUG ("Offering HELLO of %s to %s\n", other_peer_str, GNUNET_i2s (&occ->peer_identity));
2089 GNUNET_free (other_peer_str);
2090 GNUNET_TRANSPORT_offer_hello (occ->p1th, occ->hello, NULL, NULL);
2091 GNUNET_TRANSPORT_try_connect (occ->p1th, &occ->other_peer_identity);
2092 occ->send_hello_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_SECONDS,
2097 * Test for checking whether HELLO message is empty
2099 * @param cls empty flag to set
2100 * @param address the HELLO
2101 * @param expiration expiration of the HELLO
2105 test_address (void *cls, const struct GNUNET_HELLO_Address *address,
2106 struct GNUNET_TIME_Absolute expiration)
2116 * Function called whenever there is an update to the
2117 * HELLO of peers in the OverlayConnectClosure
2119 * @param cls closure
2120 * @param hello our updated HELLO
2123 hello_update_cb (void *cls, const struct GNUNET_MessageHeader *hello)
2125 struct OverlayConnectContext *occ = cls;
2129 msize = ntohs (hello->size);
2132 GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
2133 "HELLO message of peer %s is of size 0\n",
2134 &occ->other_peer_identity);
2139 GNUNET_HELLO_iterate_addresses ((const struct GNUNET_HELLO_Message *) hello,
2140 GNUNET_NO, &test_address, &empty);
2141 if (GNUNET_YES == empty)
2143 LOG_DEBUG ("HELLO of %s is empty\n", GNUNET_i2s (&occ->other_peer_identity));
2146 LOG_DEBUG ("Received HELLO of %s\n", GNUNET_i2s (&occ->other_peer_identity));
2147 occ->hello = GNUNET_malloc (msize);
2148 memcpy (occ->hello, hello, msize);
2149 GNUNET_TRANSPORT_get_hello_cancel (occ->ghh);
2151 GNUNET_TRANSPORT_disconnect (occ->p2th);
2153 GNUNET_free_non_null (occ->emsg);
2154 occ->emsg = GNUNET_strdup ("Timeout while offering HELLO to other peer");
2155 occ->send_hello_task = GNUNET_SCHEDULER_add_now (&send_hello, occ);
2160 * Function called after GNUNET_CORE_connect has succeeded (or failed
2161 * for good). Note that the private key of the peer is intentionally
2162 * not exposed here; if you need it, your process should try to read
2163 * the private key file directly (which should work if you are
2166 * @param cls closure
2167 * @param server handle to the server, NULL if we failed
2168 * @param my_identity ID of this peer, NULL if we failed
2171 core_startup_cb (void *cls, struct GNUNET_CORE_Handle * server,
2172 const struct GNUNET_PeerIdentity *my_identity)
2174 struct OverlayConnectContext *occ = cls;
2176 GNUNET_free_non_null (occ->emsg);
2178 memcpy (&occ->peer_identity, my_identity, sizeof (struct GNUNET_PeerIdentity));
2180 GNUNET_TRANSPORT_connect (occ->peer->details.local.cfg,
2181 &occ->peer_identity, NULL, NULL, NULL, NULL);
2182 /* Connect to the transport of 2nd peer and get its HELLO message */
2183 GNUNET_TESTING_peer_get_identity (occ->other_peer->details.local.peer,
2184 &occ->other_peer_identity);
2186 GNUNET_TRANSPORT_connect (occ->other_peer->details.local.cfg,
2187 &occ->other_peer_identity,
2188 NULL, NULL, NULL, NULL);
2189 if ((NULL == occ->p1th) || (NULL == occ->p2th))
2191 occ->emsg = GNUNET_strdup ("Cannot connect to TRANSPORTs of peers");
2194 LOG_DEBUG ("Acquiring HELLO of peer %s\n", GNUNET_i2s
2195 (&occ->other_peer_identity));
2196 occ->emsg = GNUNET_strdup ("Timeout while acquiring HELLO message");
2197 occ->ghh = GNUNET_TRANSPORT_get_hello (occ->p2th, &hello_update_cb, occ);
2201 GNUNET_SCHEDULER_cancel (occ->timeout_task);
2202 occ->timeout_task = GNUNET_SCHEDULER_add_now (&timeout_overlay_connect, occ);
2207 * Handler for GNUNET_MESSAGE_TYPE_TESTBED_OLCONNECT messages
2210 * @param client identification of the client
2211 * @param message the actual message
2214 handle_overlay_connect (void *cls,
2215 struct GNUNET_SERVER_Client *client,
2216 const struct GNUNET_MessageHeader *message)
2218 const struct GNUNET_TESTBED_OverlayConnectMessage *msg;
2219 struct OverlayConnectContext *occ;
2220 struct GNUNET_CORE_MessageHandler no_handlers[] = {
2226 msg = (const struct GNUNET_TESTBED_OverlayConnectMessage *) message;
2227 p1 = ntohl (msg->peer1);
2228 p2 = ntohl (msg->peer2);
2229 GNUNET_assert (p1 < peer_list_size);
2230 GNUNET_assert (NULL != peer_list[p1]);
2231 GNUNET_assert (p2 < peer_list_size);
2232 GNUNET_assert (NULL != peer_list[p2]);
2233 /* FIXME: Add cases where we have to forward overlay connect message to sub
2235 occ = GNUNET_malloc (sizeof (struct OverlayConnectContext));
2236 GNUNET_SERVER_client_keep (client);
2237 occ->client = client;
2238 occ->state = OCC_STATE_INIT;
2239 occ->peer = peer_list[p1];
2240 occ->other_peer = peer_list[p2];
2241 occ->op_id = GNUNET_ntohll (msg->operation_id);
2243 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply
2244 (GNUNET_TIME_UNIT_SECONDS, 30),
2245 &timeout_overlay_connect, occ);
2246 /* Connect to the core of 1st peer and wait for the 2nd peer to connect */
2247 occ->emsg = GNUNET_strdup ("Timeout while connecting to CORE");
2249 GNUNET_CORE_connect (occ->peer->details.local.cfg, occ, &core_startup_cb,
2250 &overlay_connect_notify, NULL, NULL, GNUNET_NO, NULL,
2251 GNUNET_NO, no_handlers);
2252 GNUNET_SERVER_receive_done (client, GNUNET_OK);
2257 * Iterator over hash map entries.
2259 * @param cls closure
2260 * @param key current key code
2261 * @param value value in the hash map
2262 * @return GNUNET_YES if we should continue to
2267 ss_map_free_iterator (void *cls,
2268 const struct GNUNET_HashCode * key, void *value)
2270 struct SharedService *ss = value;
2272 GNUNET_assert (GNUNET_YES ==
2273 GNUNET_CONTAINER_multihashmap_remove (ss_map, key, value));
2274 GNUNET_free (ss->name);
2281 * Task to clean up and shutdown nicely
2284 * @param tc the TaskContext from scheduler
2287 shutdown_task (void *cls,
2288 const struct GNUNET_SCHEDULER_TaskContext *tc)
2290 struct LCFContextQueue *lcfq;
2293 shutdown_task_id = GNUNET_SCHEDULER_NO_TASK;
2294 LOG (GNUNET_ERROR_TYPE_DEBUG, "Shutting down testbed service\n");
2295 (void) GNUNET_CONTAINER_multihashmap_iterate (ss_map, &ss_map_free_iterator,
2297 GNUNET_CONTAINER_multihashmap_destroy (ss_map);
2298 if (NULL != lcfq_head)
2300 if (GNUNET_SCHEDULER_NO_TASK != lcf_proc_task_id)
2302 GNUNET_SCHEDULER_cancel (lcf_proc_task_id);
2303 lcf_proc_task_id = GNUNET_SCHEDULER_NO_TASK;
2305 if (NULL != lcfq_head->lcf->rhandle)
2306 GNUNET_TESTBED_cancel_registration (lcfq_head->lcf->rhandle);
2308 GNUNET_assert (GNUNET_SCHEDULER_NO_TASK == lcf_proc_task_id);
2309 for (lcfq = lcfq_head; NULL != lcfq; lcfq = lcfq_head)
2311 GNUNET_free (lcfq->lcf->msg);
2312 GNUNET_free (lcfq->lcf);
2313 GNUNET_CONTAINER_DLL_remove (lcfq_head, lcfq_tail, lcfq);
2316 /* Clear peer list */
2317 for (id = 0; id < peer_list_size; id++)
2318 if (NULL != peer_list[id])
2320 if (GNUNET_NO == peer_list[id]->is_remote)
2322 GNUNET_TESTING_peer_destroy (peer_list[id]->details.local.peer);
2323 GNUNET_CONFIGURATION_destroy (peer_list[id]->details.local.cfg);
2325 GNUNET_free (peer_list[id]);
2327 GNUNET_free_non_null (peer_list);
2328 /* Clear host list */
2329 for (id = 0; id < host_list_size; id++)
2330 if (NULL != host_list[id])
2331 GNUNET_TESTBED_host_destroy (host_list[id]);
2332 GNUNET_free_non_null (host_list);
2333 /* Clear route list */
2334 for (id = 0; id < route_list_size; id++)
2335 if (NULL != route_list[id])
2336 GNUNET_free (route_list[id]);
2337 GNUNET_free_non_null (route_list);
2338 /* Clear slave_list */
2339 for (id = 0; id < slave_list_size; id++)
2340 if (NULL != slave_list[id])
2342 if (NULL != slave_list[id]->controller)
2343 GNUNET_TESTBED_controller_disconnect (slave_list[id]->controller);
2344 if (NULL != slave_list[id]->controller_proc)
2345 GNUNET_TESTBED_controller_stop (slave_list[id]->controller_proc);
2347 if (NULL != master_context)
2349 GNUNET_free_non_null (master_context->master_ip);
2350 if (NULL != master_context->system)
2351 GNUNET_TESTING_system_destroy (master_context->system, GNUNET_YES);
2352 GNUNET_free (master_context);
2353 master_context = NULL;
2359 * Callback for client disconnect
2362 * @param client the client which has disconnected
2365 client_disconnect_cb (void *cls, struct GNUNET_SERVER_Client *client)
2367 if (NULL == master_context)
2369 if (client == master_context->client)
2371 LOG (GNUNET_ERROR_TYPE_DEBUG, "Master client disconnected\n");
2372 GNUNET_SERVER_client_drop (client);
2373 /* should not be needed as we're terminated by failure to read
2374 from stdin, but if stdin fails for some reason, this shouldn't
2375 hurt for now --- might need to revise this later if we ever
2376 decide that master connections might be temporarily down
2378 //GNUNET_SCHEDULER_shutdown ();
2386 * @param cls closure
2387 * @param server the initialized server
2388 * @param cfg configuration to use
2391 testbed_run (void *cls,
2392 struct GNUNET_SERVER_Handle *server,
2393 const struct GNUNET_CONFIGURATION_Handle *cfg)
2395 static const struct GNUNET_SERVER_MessageHandler message_handlers[] =
2397 {&handle_init, NULL, GNUNET_MESSAGE_TYPE_TESTBED_INIT, 0},
2398 {&handle_add_host, NULL, GNUNET_MESSAGE_TYPE_TESTBED_ADDHOST, 0},
2399 {&handle_configure_shared_service, NULL,
2400 GNUNET_MESSAGE_TYPE_TESTBED_SERVICESHARE, 0},
2401 {&handle_link_controllers, NULL,
2402 GNUNET_MESSAGE_TYPE_TESTBED_LCONTROLLERS, 0},
2403 {&handle_peer_create, NULL, GNUNET_MESSAGE_TYPE_TESTBED_CREATEPEER, 0},
2404 {&handle_peer_destroy, NULL, GNUNET_MESSAGE_TYPE_TESTBED_DESTROYPEER,
2405 sizeof (struct GNUNET_TESTBED_PeerDestroyMessage)},
2406 {&handle_peer_start, NULL, GNUNET_MESSAGE_TYPE_TESTBED_STARTPEER,
2407 sizeof (struct GNUNET_TESTBED_PeerStartMessage)},
2408 {&handle_peer_stop, NULL, GNUNET_MESSAGE_TYPE_TESTBED_STOPPEER,
2409 sizeof (struct GNUNET_TESTBED_PeerStopMessage)},
2410 {&handle_peer_get_config, NULL, GNUNET_MESSAGE_TYPE_TESTBED_GETPEERCONFIG,
2411 sizeof (struct GNUNET_TESTBED_PeerGetConfigurationMessage)},
2412 {&handle_overlay_connect, NULL, GNUNET_MESSAGE_TYPE_TESTBED_OLCONNECT,
2413 sizeof (struct GNUNET_TESTBED_OverlayConnectMessage)},
2417 GNUNET_SERVER_add_handlers (server,
2419 GNUNET_SERVER_disconnect_notify (server,
2420 &client_disconnect_cb,
2422 ss_map = GNUNET_CONTAINER_multihashmap_create (5);
2424 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_FOREVER_REL,
2427 LOG_DEBUG ("Testbed startup complete\n");
2432 * The starting point of execution
2434 int main (int argc, char *const *argv)
2436 //sleep (15); /* Debugging */
2439 GNUNET_SERVICE_run (argc,
2442 GNUNET_SERVICE_OPTION_NONE,