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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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 General Public License for more details.
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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 * Our host id according to this context
91 * The message queue for sending messages to clients
96 * The message to be sent
98 struct GNUNET_MessageHeader *msg;
101 * The client to send the message to
103 struct GNUNET_SERVER_Client *client;
106 * next pointer for DLL
108 struct MessageQueue *next;
111 * prev pointer for DLL
113 struct MessageQueue *prev;
118 * The structure for identifying a shared service
123 * The name of the shared service
128 * Number of shared peers per instance of the shared service
133 * Number of peers currently sharing the service
135 uint32_t num_sharing;
150 * The destination host is reachable thru
157 * Context information used while linking controllers
159 struct LinkControllersContext;
163 * A DLL of host registrations to be made
165 struct HostRegistration
168 * next registration in the DLL
170 struct HostRegistration *next;
173 * previous registration in the DLL
175 struct HostRegistration *prev;
178 * The callback to call after this registration's status is available
180 GNUNET_TESTBED_HostRegistrationCompletion cb;
183 * The closure for the above callback
188 * The host that has to be registered
190 struct GNUNET_TESTBED_Host *host;
195 * This context information will be created for each host that is registered at
196 * slave controllers during overlay connects.
198 struct RegisteredHostContext
201 * The host which is being registered
203 struct GNUNET_TESTBED_Host *reg_host;
206 * The host of the controller which has to connect to the above rhost
208 struct GNUNET_TESTBED_Host *host;
211 * The gateway to which this operation is forwarded to
213 struct Slave *gateway;
216 * The gateway through which peer2's controller can be reached
218 struct Slave *gateway2;
221 * Handle for sub-operations
223 struct GNUNET_TESTBED_Operation *sub_op;
226 * The client which initiated the link controller operation
228 struct GNUNET_SERVER_Client *client;
231 * Head of the ForwardedOverlayConnectContext DLL
233 struct ForwardedOverlayConnectContext *focc_dll_head;
236 * Tail of the ForwardedOverlayConnectContext DLL
238 struct ForwardedOverlayConnectContext *focc_dll_tail;
241 * Enumeration of states for this context
251 * State where we attempt to get peer2's controller configuration
256 * State where we attempt to link the controller of peer 1 to the controller
262 * State where we attempt to do the overlay connection again
272 * Structure representing a connected(directly-linked) controller
277 * The controller process handle if we had started the controller
279 struct GNUNET_TESTBED_ControllerProc *controller_proc;
282 * The controller handle
284 struct GNUNET_TESTBED_Controller *controller;
287 * The configuration of the slave. Cannot be NULL
289 struct GNUNET_CONFIGURATION_Handle *cfg;
292 * handle to lcc which is associated with this slave startup. Should be set to
293 * NULL when the slave has successfully started up
295 struct LinkControllersContext *lcc;
298 * Head of the host registration DLL
300 struct HostRegistration *hr_dll_head;
303 * Tail of the host registration DLL
305 struct HostRegistration *hr_dll_tail;
308 * The current host registration handle
310 struct GNUNET_TESTBED_HostRegistrationHandle *rhandle;
313 * Hashmap to hold Registered host contexts
315 struct GNUNET_CONTAINER_MultiHashMap *reghost_map;
318 * The id of the host this controller is running on
326 * States of LCFContext
331 * The Context has been initialized; Nothing has been done on it
336 * Delegated host has been registered at the forwarding controller
338 DELEGATED_HOST_REGISTERED,
341 * The slave host has been registred at the forwarding controller
343 SLAVE_HOST_REGISTERED,
346 * The context has been finished (may have error)
353 * Link controllers request forwarding context
358 * The gateway which will pass the link message to delegated host
360 struct Slave *gateway;
363 * The controller link message that has to be forwarded to
365 struct GNUNET_TESTBED_ControllerLinkMessage *msg;
368 * The client which has asked to perform this operation
370 struct GNUNET_SERVER_Client *client;
373 * Handle for operations which are forwarded while linking controllers
375 struct ForwardedOperationContext *fopc;
378 * The id of the operation which created this context
380 uint64_t operation_id;
383 * The state of this context
385 enum LCFContextState state;
390 uint32_t delegated_host_id;
395 uint32_t slave_host_id;
401 * Structure of a queue entry in LCFContext request queue
403 struct LCFContextQueue
408 struct LCFContext *lcf;
413 struct LCFContextQueue *next;
418 struct LCFContextQueue *prev;
433 * The peer handle from testing API
435 struct GNUNET_TESTING_Peer *peer;
438 * The modified (by GNUNET_TESTING_peer_configure) configuration this
439 * peer is configured with
441 struct GNUNET_CONFIGURATION_Handle *cfg;
444 * Is the peer running
453 * The slave this peer is started through
458 * The id of the remote host this peer is running on
460 uint32_t remote_host_id;
467 * Is this peer locally created?
472 * Our local reference id for this peer
477 * References to peers are using in forwarded overlay contexts and remote
478 * overlay connect contexts. A peer can only be destroyed after all such
479 * contexts are destroyed. For this, we maintain a reference counter. When we
480 * use a peer in any such context, we increment this counter. We decrement it
481 * when we are destroying these contexts
483 uint32_t reference_cnt;
486 * While destroying a peer, due to the fact that there could be references to
487 * this peer, we delay the peer destroy to a further time. We do this by using
488 * this flag to destroy the peer while destroying a context in which this peer
489 * has been used. When the flag is set to 1 and reference_cnt = 0 we destroy
492 uint32_t destroy_flag;
498 * Context information for connecting 2 peers in overlay
500 struct OverlayConnectContext
503 * The next pointer for maintaining a DLL
505 struct OverlayConnectContext *next;
508 * The prev pointer for maintaining a DLL
510 struct OverlayConnectContext *prev;
513 * The client which has requested for overlay connection
515 struct GNUNET_SERVER_Client *client;
518 * the peer which has to connect to the other peer
523 * Transport handle of the first peer to get its HELLO
525 struct GNUNET_TRANSPORT_Handle *p1th;
528 * Transport handle of other peer to offer first peer's HELLO
530 struct GNUNET_TRANSPORT_Handle *p2th;
533 * Core handles of the first peer; used to notify when second peer connects to it
535 struct GNUNET_CORE_Handle *ch;
538 * HELLO of the other peer
540 struct GNUNET_MessageHeader *hello;
543 * Get hello handle to acquire HELLO of first peer
545 struct GNUNET_TRANSPORT_GetHelloHandle *ghh;
548 * The handle for offering HELLO
550 struct GNUNET_TRANSPORT_OfferHelloHandle *ohh;
553 * The handle for transport try connect
555 struct GNUNET_TRANSPORT_TryConnectHandle *tch;
558 * The error message we send if this overlay connect operation has timed out
563 * Operation context for suboperations
565 struct OperationContext *opc;
568 * Controller of peer 2; NULL if the peer is local
570 struct GNUNET_TESTBED_Controller *peer2_controller;
573 * The peer identity of the first peer
575 struct GNUNET_PeerIdentity peer_identity;
578 * The peer identity of the other peer
580 struct GNUNET_PeerIdentity other_peer_identity;
583 * The id of the operation responsible for creating this context
588 * The id of the task for sending HELLO of peer 2 to peer 1 and ask peer 1 to
591 GNUNET_SCHEDULER_TaskIdentifier send_hello_task;
594 * The id of the overlay connect timeout task
596 GNUNET_SCHEDULER_TaskIdentifier timeout_task;
599 * The id of the cleanup task
601 GNUNET_SCHEDULER_TaskIdentifier cleanup_task;
611 uint32_t other_peer_id;
617 * Context information for RequestOverlayConnect
618 * operations. RequestOverlayConnect is used when peers A, B reside on different
619 * hosts and the host controller for peer B is asked by the host controller of
620 * peer A to make peer B connect to peer A
622 struct RequestOverlayConnectContext
625 * the next pointer for DLL
627 struct RequestOverlayConnectContext *next;
630 * the prev pointer for DLL
632 struct RequestOverlayConnectContext *prev;
635 * The transport handle of peer B
637 struct GNUNET_TRANSPORT_Handle *th;
642 struct GNUNET_MessageHeader *hello;
645 * The peer identity of peer A
647 struct GNUNET_PeerIdentity a_id;
650 * Task for offering HELLO of A to B and doing try_connect
652 GNUNET_SCHEDULER_TaskIdentifier attempt_connect_task_id;
655 * Task to timeout RequestOverlayConnect
657 GNUNET_SCHEDULER_TaskIdentifier timeout_rocc_task_id;
663 * Context information for operations forwarded to subcontrollers
665 struct ForwardedOperationContext
668 * The next pointer for DLL
670 struct ForwardedOperationContext *next;
673 * The prev pointer for DLL
675 struct ForwardedOperationContext *prev;
678 * The generated operation context
680 struct OperationContext *opc;
683 * The client to which we have to reply
685 struct GNUNET_SERVER_Client *client;
693 * Task ID for the timeout task
695 GNUNET_SCHEDULER_TaskIdentifier timeout_task;
698 * The id of the operation that has been forwarded
700 uint64_t operation_id;
703 * The type of the operation which is forwarded
705 enum OperationType type;
711 * Context information used while linking controllers
713 struct LinkControllersContext
716 * The client which initiated the link controller operation
718 struct GNUNET_SERVER_Client *client;
721 * The ID of the operation
723 uint64_t operation_id;
729 * Context information to used during operations which forward the overlay
732 struct ForwardedOverlayConnectContext
735 * next ForwardedOverlayConnectContext in the DLL
737 struct ForwardedOverlayConnectContext *next;
740 * previous ForwardedOverlayConnectContext in the DLL
742 struct ForwardedOverlayConnectContext *prev;
745 * A copy of the original overlay connect message
747 struct GNUNET_MessageHeader *orig_msg;
750 * The id of the operation which created this context information
752 uint64_t operation_id;
765 * Id of the host where peer2 is running
767 uint32_t peer2_host_id;
773 * The master context; generated with the first INIT message
775 static struct Context *master_context;
778 * Our hostname; we give this to all the peers we start
780 static char *hostname;
790 static struct GNUNET_CONFIGURATION_Handle *our_config;
793 * Current Transmit Handle; NULL if no notify transmit exists currently
795 static struct GNUNET_SERVER_TransmitHandle *transmit_handle;
802 * The head for the LCF queue
804 static struct LCFContextQueue *lcfq_head;
807 * The tail for the LCF queue
809 static struct LCFContextQueue *lcfq_tail;
812 * The message queue head
814 static struct MessageQueue *mq_head;
817 * The message queue tail
819 static struct MessageQueue *mq_tail;
822 * DLL head for OverlayConnectContext DLL - to be used to clean up during shutdown
824 static struct OverlayConnectContext *occq_head;
827 * DLL tail for OverlayConnectContext DLL
829 static struct OverlayConnectContext *occq_tail;
832 * DLL head for RequectOverlayConnectContext DLL - to be used to clean up during
835 static struct RequestOverlayConnectContext *roccq_head;
838 * DLL tail for RequectOverlayConnectContext DLL
840 static struct RequestOverlayConnectContext *roccq_tail;
843 * DLL head for forwarded operation contexts
845 static struct ForwardedOperationContext *fopcq_head;
848 * DLL tail for forwarded operation contexts
850 static struct ForwardedOperationContext *fopcq_tail;
855 static struct GNUNET_TESTBED_Host **host_list;
860 static struct Route **route_list;
863 * A list of directly linked neighbours
865 static struct Slave **slave_list;
868 * A list of peers we know about
870 static struct Peer **peer_list;
873 * The hashmap of shared services
875 static struct GNUNET_CONTAINER_MultiHashMap *ss_map;
878 * The event mask for the events we listen from sub-controllers
880 static uint64_t event_mask;
883 * The size of the host list
885 static uint32_t host_list_size;
888 * The size of the route list
890 static uint32_t route_list_size;
893 * The size of directly linked neighbours list
895 static uint32_t slave_list_size;
898 * The size of the peer list
900 static uint32_t peer_list_size;
907 * The lcf_task handle
909 static GNUNET_SCHEDULER_TaskIdentifier lcf_proc_task_id;
912 * The shutdown task handle
914 static GNUNET_SCHEDULER_TaskIdentifier shutdown_task_id;
918 * Function called to notify a client about the connection begin ready to queue
919 * more data. "buf" will be NULL and "size" zero if the connection was closed
920 * for writing in the meantime.
923 * @param size number of bytes available in buf
924 * @param buf where the callee should write the message
925 * @return number of bytes written to buf
928 transmit_ready_notify (void *cls, size_t size, void *buf)
930 struct MessageQueue *mq_entry;
932 transmit_handle = NULL;
934 GNUNET_assert (NULL != mq_entry);
937 GNUNET_assert (ntohs (mq_entry->msg->size) <= size);
938 size = ntohs (mq_entry->msg->size);
939 memcpy (buf, mq_entry->msg, size);
940 GNUNET_free (mq_entry->msg);
941 GNUNET_SERVER_client_drop (mq_entry->client);
942 GNUNET_CONTAINER_DLL_remove (mq_head, mq_tail, mq_entry);
943 GNUNET_free (mq_entry);
945 if (NULL != mq_entry)
947 GNUNET_SERVER_notify_transmit_ready (mq_entry->client,
948 ntohs (mq_entry->msg->size),
949 GNUNET_TIME_UNIT_FOREVER_REL,
950 &transmit_ready_notify, NULL);
956 * Queues a message in send queue for sending to the service
958 * @param client the client to whom the queued message has to be sent
959 * @param msg the message to queue
962 queue_message (struct GNUNET_SERVER_Client *client,
963 struct GNUNET_MessageHeader *msg)
965 struct MessageQueue *mq_entry;
969 type = ntohs (msg->type);
970 size = ntohs (msg->size);
971 GNUNET_assert ((GNUNET_MESSAGE_TYPE_TESTBED_INIT <= type) &&
972 (GNUNET_MESSAGE_TYPE_TESTBED_MAX > type));
973 mq_entry = GNUNET_malloc (sizeof (struct MessageQueue));
975 mq_entry->client = client;
976 GNUNET_SERVER_client_keep (client);
977 LOG_DEBUG ("Queueing message of type %u, size %u for sending\n", type,
979 GNUNET_CONTAINER_DLL_insert_tail (mq_head, mq_tail, mq_entry);
980 if (NULL == transmit_handle)
982 GNUNET_SERVER_notify_transmit_ready (client, size,
983 GNUNET_TIME_UNIT_FOREVER_REL,
984 &transmit_ready_notify, NULL);
989 * Similar to GNUNET_realloc; however clears tail part of newly allocated memory
991 * @param ptr the memory block to realloc
992 * @param size the size of ptr
993 * @param new_size the size to which ptr has to be realloc'ed
994 * @return the newly reallocated memory block
997 TESTBED_realloc (void *ptr, size_t size, size_t new_size)
999 ptr = GNUNET_realloc (ptr, new_size);
1000 if (new_size > size)
1001 (void) memset (ptr + size, 0, new_size - size);
1007 * Function to add a host to the current list of known hosts
1009 * @param host the host to add
1010 * @return GNUNET_OK on success; GNUNET_SYSERR on failure due to host-id
1014 host_list_add (struct GNUNET_TESTBED_Host *host)
1019 host_id = GNUNET_TESTBED_host_get_id_ (host);
1020 orig_size = host_list_size;
1021 if (host_list_size <= host_id)
1023 while (host_list_size <= host_id)
1024 host_list_size += LIST_GROW_STEP;
1026 TESTBED_realloc (host_list,
1027 sizeof (struct GNUNET_TESTBED_Host *) * orig_size,
1028 sizeof (struct GNUNET_TESTBED_Host *)
1031 if (NULL != host_list[host_id])
1033 LOG_DEBUG ("A host with id: %u already exists\n", host_id);
1034 return GNUNET_SYSERR;
1036 host_list[host_id] = host;
1042 * Adds a route to the route list
1044 * @param route the route to add
1047 route_list_add (struct Route *route)
1051 orig_size = route_list_size;
1052 if (route->dest >= route_list_size)
1054 while (route->dest >= route_list_size)
1055 route_list_size += LIST_GROW_STEP;
1057 TESTBED_realloc (route_list,
1058 sizeof (struct Route *) * orig_size,
1059 sizeof (struct Route *) * route_list_size);
1061 GNUNET_assert (NULL == route_list[route->dest]);
1062 route_list[route->dest] = route;
1067 * Adds a slave to the slave array
1069 * @param slave the slave controller to add
1072 slave_list_add (struct Slave *slave)
1076 orig_size = slave_list_size;
1077 if (slave->host_id >= slave_list_size)
1079 while (slave->host_id >= slave_list_size)
1080 slave_list_size += LIST_GROW_STEP;
1082 TESTBED_realloc (slave_list, sizeof (struct Slave *) * orig_size,
1083 sizeof (struct Slave *) * slave_list_size);
1085 GNUNET_assert (NULL == slave_list[slave->host_id]);
1086 slave_list[slave->host_id] = slave;
1091 * Adds a peer to the peer array
1093 * @param peer the peer to add
1096 peer_list_add (struct Peer *peer)
1100 orig_size = peer_list_size;
1101 if (peer->id >= peer_list_size)
1103 while (peer->id >= peer_list_size)
1104 peer_list_size += LIST_GROW_STEP;
1106 TESTBED_realloc (peer_list, sizeof (struct Peer *) * orig_size,
1107 sizeof (struct Peer *) * peer_list_size);
1109 GNUNET_assert (NULL == peer_list[peer->id]);
1110 peer_list[peer->id] = peer;
1115 * Removes a the give peer from the peer array
1117 * @param peer the peer to be removed
1120 peer_list_remove (struct Peer *peer)
1125 peer_list[peer->id] = NULL;
1126 orig_size = peer_list_size;
1127 while (peer_list_size >= LIST_GROW_STEP)
1129 for (id = peer_list_size - 1;
1130 (id >= peer_list_size - LIST_GROW_STEP) && (id != UINT32_MAX); id--)
1131 if (NULL != peer_list[id])
1133 if (id != ((peer_list_size - LIST_GROW_STEP) - 1))
1135 peer_list_size -= LIST_GROW_STEP;
1137 if (orig_size == peer_list_size)
1140 GNUNET_realloc (peer_list, sizeof (struct Peer *) * peer_list_size);
1145 * Finds the route with directly connected host as destination through which
1146 * the destination host can be reached
1148 * @param host_id the id of the destination host
1149 * @return the route with directly connected destination host; NULL if no route
1152 static struct Route *
1153 find_dest_route (uint32_t host_id)
1155 struct Route *route;
1157 if (route_list_size <= host_id)
1159 while (NULL != (route = route_list[host_id]))
1161 if (route->thru == master_context->host_id)
1163 host_id = route->thru;
1170 * Routes message to a host given its host_id
1172 * @param host_id the id of the destination host
1173 * @param msg the message to be routed
1176 route_message (uint32_t host_id, const struct GNUNET_MessageHeader *msg)
1183 * Send operation failure message to client
1185 * @param client the client to which the failure message has to be sent to
1186 * @param operation_id the id of the failed operation
1187 * @param emsg the error message; can be NULL
1190 send_operation_fail_msg (struct GNUNET_SERVER_Client *client,
1191 uint64_t operation_id, const char *emsg)
1193 struct GNUNET_TESTBED_OperationFailureEventMessage *msg;
1197 msize = sizeof (struct GNUNET_TESTBED_OperationFailureEventMessage);
1198 emsg_len = (NULL == emsg) ? 0 : strlen (emsg) + 1;
1200 msg = GNUNET_malloc (msize);
1201 msg->header.size = htons (msize);
1202 msg->header.type = htons (GNUNET_MESSAGE_TYPE_TESTBED_OPERATIONFAILEVENT);
1203 msg->event_type = htonl (GNUNET_TESTBED_ET_OPERATION_FINISHED);
1204 msg->operation_id = GNUNET_htonll (operation_id);
1206 memcpy (&msg[1], emsg, emsg_len);
1207 queue_message (client, &msg->header);
1212 * Function to send generic operation success message to given client
1214 * @param client the client to send the message to
1215 * @param operation_id the id of the operation which was successful
1218 send_operation_success_msg (struct GNUNET_SERVER_Client *client,
1219 uint64_t operation_id)
1221 struct GNUNET_TESTBED_GenericOperationSuccessEventMessage *msg;
1224 msize = sizeof (struct GNUNET_TESTBED_GenericOperationSuccessEventMessage);
1225 msg = GNUNET_malloc (msize);
1226 msg->header.size = htons (msize);
1227 msg->header.type = htons (GNUNET_MESSAGE_TYPE_TESTBED_GENERICOPSUCCESS);
1228 msg->operation_id = GNUNET_htonll (operation_id);
1229 msg->event_type = htonl (GNUNET_TESTBED_ET_OPERATION_FINISHED);
1230 queue_message (client, &msg->header);
1235 * Callback which will be called to after a host registration succeeded or failed
1237 * @param cls the handle to the slave at which the registration is completed
1238 * @param emsg the error message; NULL if host registration is successful
1241 hr_completion (void *cls, const char *emsg);
1245 * Attempts to register the next host in the host registration queue
1247 * @param slave the slave controller whose host registration queue is checked
1248 * for host registrations
1251 register_next_host (struct Slave *slave)
1253 struct HostRegistration *hr;
1255 hr = slave->hr_dll_head;
1256 GNUNET_assert (NULL != hr);
1257 GNUNET_assert (NULL == slave->rhandle);
1258 LOG (GNUNET_ERROR_TYPE_DEBUG,
1259 "Registering host %u at %u\n",
1260 GNUNET_TESTBED_host_get_id_ (hr->host),
1261 GNUNET_TESTBED_host_get_id_ (host_list[slave->host_id]));
1262 slave->rhandle = GNUNET_TESTBED_register_host (slave->controller,
1270 * Callback which will be called to after a host registration succeeded or failed
1272 * @param cls the handle to the slave at which the registration is completed
1273 * @param emsg the error message; NULL if host registration is successful
1276 hr_completion (void *cls, const char *emsg)
1278 struct Slave *slave = cls;
1279 struct HostRegistration *hr;
1281 slave->rhandle = NULL;
1282 hr = slave->hr_dll_head;
1283 GNUNET_assert (NULL != hr);
1284 LOG (GNUNET_ERROR_TYPE_DEBUG,
1285 "Registering host %u at %u successful\n",
1286 GNUNET_TESTBED_host_get_id_ (hr->host),
1287 GNUNET_TESTBED_host_get_id_ (host_list[slave->host_id]));
1288 GNUNET_CONTAINER_DLL_remove (slave->hr_dll_head,
1292 hr->cb (hr->cb_cls, emsg);
1294 if (NULL != slave->hr_dll_head)
1295 register_next_host (slave);
1300 * Adds a host registration's request to a slave's registration queue
1302 * @param slave the slave controller at which the given host has to be
1304 * @param cb the host registration completion callback
1305 * @param cb_cls the closure for the host registration completion callback
1306 * @param host the host which has to be registered
1309 queue_host_registration (struct Slave *slave,
1310 GNUNET_TESTBED_HostRegistrationCompletion cb,
1312 struct GNUNET_TESTBED_Host *host)
1314 struct HostRegistration *hr;
1317 LOG (GNUNET_ERROR_TYPE_DEBUG,
1318 "Queueing host registration for host %u at %u\n",
1319 GNUNET_TESTBED_host_get_id_ (host),
1320 GNUNET_TESTBED_host_get_id_ (host_list[slave->host_id]));
1321 hr = GNUNET_malloc (sizeof (struct HostRegistration));
1323 hr->cb_cls = cb_cls;
1325 call_register = (NULL == slave->hr_dll_head) ? GNUNET_YES : GNUNET_NO;
1326 GNUNET_CONTAINER_DLL_insert_tail (slave->hr_dll_head,
1329 if (GNUNET_YES == call_register)
1330 register_next_host (slave);
1335 * The Link Controller forwarding task
1337 * @param cls the LCFContext
1338 * @param tc the Task context from scheduler
1341 lcf_proc_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc);
1345 * Completion callback for host registrations while forwarding Link Controller messages
1347 * @param cls the LCFContext
1348 * @param emsg the error message; NULL if host registration is successful
1351 lcf_proc_cc (void *cls, const char *emsg)
1353 struct LCFContext *lcf = cls;
1355 GNUNET_assert (GNUNET_SCHEDULER_NO_TASK == lcf_proc_task_id);
1360 goto registration_error;
1361 lcf->state = DELEGATED_HOST_REGISTERED;
1362 lcf_proc_task_id = GNUNET_SCHEDULER_add_now (&lcf_proc_task, lcf);
1364 case DELEGATED_HOST_REGISTERED:
1366 goto registration_error;
1367 lcf->state = SLAVE_HOST_REGISTERED;
1368 lcf_proc_task_id = GNUNET_SCHEDULER_add_now (&lcf_proc_task, lcf);
1371 GNUNET_assert (0); /* Shouldn't reach here */
1376 LOG (GNUNET_ERROR_TYPE_WARNING, "Host registration failed with message: %s\n",
1378 lcf->state = FINISHED;
1379 lcf_proc_task_id = GNUNET_SCHEDULER_add_now (&lcf_proc_task, lcf);
1384 * Callback to relay the reply msg of a forwarded operation back to the client
1386 * @param cls ForwardedOperationContext
1387 * @param msg the message to relay
1390 forwarded_operation_reply_relay (void *cls,
1391 const struct GNUNET_MessageHeader *msg)
1393 struct ForwardedOperationContext *fopc = cls;
1394 struct GNUNET_MessageHeader *dup_msg;
1397 msize = ntohs (msg->size);
1398 LOG_DEBUG ("Relaying message with type: %u, size: %u\n", ntohs (msg->type),
1400 dup_msg = GNUNET_copy_message (msg);
1401 queue_message (fopc->client, dup_msg);
1402 GNUNET_SERVER_client_drop (fopc->client);
1403 GNUNET_SCHEDULER_cancel (fopc->timeout_task);
1404 GNUNET_CONTAINER_DLL_remove (fopcq_head, fopcq_tail, fopc);
1410 * Task to free resources when forwarded operation has been timedout
1412 * @param cls the ForwardedOperationContext
1413 * @param tc the task context from scheduler
1416 forwarded_operation_timeout (void *cls,
1417 const struct GNUNET_SCHEDULER_TaskContext *tc)
1419 struct ForwardedOperationContext *fopc = cls;
1421 GNUNET_TESTBED_forward_operation_msg_cancel_ (fopc->opc);
1422 LOG (GNUNET_ERROR_TYPE_WARNING, "A forwarded operation has timed out\n");
1423 send_operation_fail_msg (fopc->client, fopc->operation_id, "Timeout");
1424 GNUNET_SERVER_client_drop (fopc->client);
1425 GNUNET_CONTAINER_DLL_remove (fopcq_head, fopcq_tail, fopc);
1431 * The Link Controller forwarding task
1433 * @param cls the LCFContext
1434 * @param tc the Task context from scheduler
1437 lcf_proc_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc);
1441 * Callback to be called when forwarded link controllers operation is
1442 * successfull. We have to relay the reply msg back to the client
1444 * @param cls the LCFContext
1445 * @param msg the message to relay
1448 lcf_forwarded_operation_reply_relay (void *cls,
1449 const struct GNUNET_MessageHeader *msg)
1451 struct LCFContext *lcf = cls;
1453 GNUNET_assert (NULL != lcf->fopc);
1454 forwarded_operation_reply_relay (lcf->fopc, msg);
1456 GNUNET_assert (GNUNET_SCHEDULER_NO_TASK == lcf_proc_task_id);
1457 lcf_proc_task_id = GNUNET_SCHEDULER_add_now (&lcf_proc_task, lcf);
1462 * Task to free resources when forwarded link controllers has been timedout
1464 * @param cls the LCFContext
1465 * @param tc the task context from scheduler
1468 lcf_forwarded_operation_timeout (void *cls,
1469 const struct GNUNET_SCHEDULER_TaskContext *tc)
1471 struct LCFContext *lcf = cls;
1473 GNUNET_assert (NULL != lcf->fopc);
1474 lcf->fopc->timeout_task = GNUNET_SCHEDULER_NO_TASK;
1475 forwarded_operation_timeout (lcf->fopc, tc);
1477 GNUNET_assert (GNUNET_SCHEDULER_NO_TASK == lcf_proc_task_id);
1478 lcf_proc_task_id = GNUNET_SCHEDULER_add_now (&lcf_proc_task, lcf);
1483 * The Link Controller forwarding task
1485 * @param cls the LCFContext
1486 * @param tc the Task context from scheduler
1489 lcf_proc_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
1491 struct LCFContext *lcf = cls;
1492 struct LCFContextQueue *lcfq;
1494 lcf_proc_task_id = GNUNET_SCHEDULER_NO_TASK;
1499 GNUNET_TESTBED_is_host_registered_ (host_list[lcf->delegated_host_id],
1500 lcf->gateway->controller))
1502 queue_host_registration (lcf->gateway,
1504 host_list[lcf->delegated_host_id]);
1508 lcf->state = DELEGATED_HOST_REGISTERED;
1509 lcf_proc_task_id = GNUNET_SCHEDULER_add_now (&lcf_proc_task, lcf);
1512 case DELEGATED_HOST_REGISTERED:
1514 GNUNET_TESTBED_is_host_registered_ (host_list[lcf->slave_host_id],
1515 lcf->gateway->controller))
1517 queue_host_registration (lcf->gateway,
1519 host_list[lcf->slave_host_id]);
1523 lcf->state = SLAVE_HOST_REGISTERED;
1524 lcf_proc_task_id = GNUNET_SCHEDULER_add_now (&lcf_proc_task, lcf);
1527 case SLAVE_HOST_REGISTERED:
1528 lcf->fopc = GNUNET_malloc (sizeof (struct ForwardedOperationContext));
1529 lcf->fopc->client = lcf->client;
1530 lcf->fopc->operation_id = lcf->operation_id;
1531 lcf->fopc->type = OP_LINK_CONTROLLERS;
1533 GNUNET_TESTBED_forward_operation_msg_ (lcf->gateway->controller,
1536 &lcf_forwarded_operation_reply_relay,
1538 lcf->fopc->timeout_task =
1539 GNUNET_SCHEDULER_add_delayed (TIMEOUT, &lcf_forwarded_operation_timeout,
1541 GNUNET_CONTAINER_DLL_insert_tail (fopcq_head, fopcq_tail, lcf->fopc);
1542 lcf->state = FINISHED;
1546 GNUNET_assert (lcfq->lcf == lcf);
1547 GNUNET_free (lcf->msg);
1549 GNUNET_CONTAINER_DLL_remove (lcfq_head, lcfq_tail, lcfq);
1551 if (NULL != lcfq_head)
1553 GNUNET_SCHEDULER_add_now (&lcf_proc_task, lcfq_head->lcf);
1559 * Cleans up ForwardedOverlayConnectContext
1561 * @param focc the ForwardedOverlayConnectContext to cleanup
1564 cleanup_focc (struct ForwardedOverlayConnectContext *focc)
1566 GNUNET_free_non_null (focc->orig_msg);
1572 * Processes a forwarded overlay connect context in the queue of the given RegisteredHostContext
1574 * @param rhc the RegisteredHostContext
1577 process_next_focc (struct RegisteredHostContext *rhc);
1581 * Timeout task for cancelling a forwarded overlay connect connect
1583 * @param cls the ForwardedOverlayConnectContext
1584 * @param tc the task context from the scheduler
1587 forwarded_overlay_connect_timeout (void *cls,
1588 const struct GNUNET_SCHEDULER_TaskContext
1591 struct ForwardedOperationContext *fopc = cls;
1592 struct RegisteredHostContext *rhc;
1593 struct ForwardedOverlayConnectContext *focc;
1596 focc = rhc->focc_dll_head;
1597 GNUNET_CONTAINER_DLL_remove (rhc->focc_dll_head, rhc->focc_dll_tail, focc);
1598 cleanup_focc (focc);
1599 LOG_DEBUG ("Overlay linking between peers %u and %u failed\n",
1600 focc->peer1, focc->peer2);
1601 forwarded_operation_timeout (cls, tc);
1602 if (NULL != rhc->focc_dll_head)
1603 process_next_focc (rhc);
1608 * Callback to be called when forwarded overlay connection operation has a reply
1609 * from the sub-controller successfull. We have to relay the reply msg back to
1612 * @param cls ForwardedOperationContext
1613 * @param msg the peer create success message
1616 forwarded_overlay_connect_listener (void *cls,
1617 const struct GNUNET_MessageHeader *msg)
1619 struct ForwardedOperationContext *fopc = cls;
1620 struct RegisteredHostContext *rhc;
1621 struct ForwardedOverlayConnectContext *focc;
1624 forwarded_operation_reply_relay (cls, msg);
1625 focc = rhc->focc_dll_head;
1626 GNUNET_CONTAINER_DLL_remove (rhc->focc_dll_head, rhc->focc_dll_tail, focc);
1627 cleanup_focc (focc);
1628 if (NULL != rhc->focc_dll_head)
1629 process_next_focc (rhc);
1634 * Processes a forwarded overlay connect context in the queue of the given RegisteredHostContext
1636 * @param rhc the RegisteredHostContext
1639 process_next_focc (struct RegisteredHostContext *rhc)
1641 struct ForwardedOperationContext *fopc;
1642 struct ForwardedOverlayConnectContext *focc;
1644 focc = rhc->focc_dll_head;
1645 GNUNET_assert (NULL != focc);
1646 GNUNET_assert (RHC_OL_CONNECT == rhc->state);
1647 fopc = GNUNET_malloc (sizeof (struct ForwardedOperationContext));
1648 GNUNET_SERVER_client_keep (rhc->client);
1649 fopc->client = rhc->client;
1650 fopc->operation_id = focc->operation_id;
1652 fopc->type = OP_OVERLAY_CONNECT;
1654 GNUNET_TESTBED_forward_operation_msg_ (rhc->gateway->controller,
1655 focc->operation_id, focc->orig_msg,
1656 &forwarded_overlay_connect_listener,
1658 GNUNET_free (focc->orig_msg);
1659 focc->orig_msg = NULL;
1660 fopc->timeout_task =
1661 GNUNET_SCHEDULER_add_delayed (TIMEOUT, &forwarded_overlay_connect_timeout,
1663 GNUNET_CONTAINER_DLL_insert_tail (fopcq_head, fopcq_tail, fopc);
1668 * Callback for event from slave controllers
1670 * @param cls struct Slave *
1671 * @param event information about the event
1674 slave_event_callback (void *cls,
1675 const struct GNUNET_TESTBED_EventInformation *event)
1677 struct RegisteredHostContext *rhc;
1678 struct GNUNET_CONFIGURATION_Handle *cfg;
1679 struct GNUNET_TESTBED_Operation *old_op;
1681 /* We currently only get here when working on RegisteredHostContexts */
1682 GNUNET_assert (GNUNET_TESTBED_ET_OPERATION_FINISHED == event->type);
1683 rhc = event->details.operation_finished.op_cls;
1684 GNUNET_assert (rhc->sub_op == event->details.operation_finished.operation);
1688 cfg = event->details.operation_finished.generic;
1689 old_op = rhc->sub_op;
1690 rhc->state = RHC_LINK;
1692 GNUNET_TESTBED_controller_link (rhc,
1693 rhc->gateway->controller,
1698 GNUNET_TESTBED_operation_done (old_op);
1701 LOG_DEBUG ("OL: Linking controllers successfull\n");
1702 GNUNET_TESTBED_operation_done (rhc->sub_op);
1704 rhc->state = RHC_OL_CONNECT;
1705 process_next_focc (rhc);
1714 * Callback to signal successfull startup of the controller process
1716 * @param cls the handle to the slave whose status is to be found here
1717 * @param cfg the configuration with which the controller has been started;
1718 * NULL if status is not GNUNET_OK
1719 * @param status GNUNET_OK if the startup is successfull; GNUNET_SYSERR if not,
1720 * GNUNET_TESTBED_controller_stop() shouldn't be called in this case
1723 slave_status_callback (void *cls, const struct GNUNET_CONFIGURATION_Handle *cfg,
1726 struct Slave *slave = cls;
1727 struct LinkControllersContext *lcc;
1730 if (GNUNET_SYSERR == status)
1732 slave->controller_proc = NULL;
1733 slave_list[slave->host_id] = NULL;
1734 if (NULL != slave->cfg)
1735 GNUNET_CONFIGURATION_destroy (slave->cfg);
1736 GNUNET_free (slave);
1738 LOG (GNUNET_ERROR_TYPE_WARNING, "Unexpected slave shutdown\n");
1739 GNUNET_SCHEDULER_shutdown (); /* We too shutdown */
1743 GNUNET_TESTBED_controller_connect (cfg, host_list[slave->host_id],
1745 &slave_event_callback, slave);
1746 if (NULL != slave->controller)
1748 send_operation_success_msg (lcc->client, lcc->operation_id);
1749 slave->cfg = GNUNET_CONFIGURATION_dup (cfg);
1753 send_operation_fail_msg (lcc->client, lcc->operation_id,
1754 "Could not connect to delegated controller");
1755 GNUNET_TESTBED_controller_stop (slave->controller_proc);
1756 slave_list[slave->host_id] = NULL;
1757 GNUNET_free (slave);
1764 if (NULL != lcc->client)
1766 GNUNET_SERVER_receive_done (lcc->client, GNUNET_OK);
1767 GNUNET_SERVER_client_drop (lcc->client);
1778 * Message handler for GNUNET_MESSAGE_TYPE_TESTBED_INIT messages
1781 * @param client identification of the client
1782 * @param message the actual message
1785 handle_init (void *cls, struct GNUNET_SERVER_Client *client,
1786 const struct GNUNET_MessageHeader *message)
1788 const struct GNUNET_TESTBED_InitMessage *msg;
1789 struct GNUNET_TESTBED_Host *host;
1790 const char *controller_hostname;
1793 if (NULL != master_context)
1795 LOG_DEBUG ("We are being connected to laterally\n");
1796 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1799 msg = (const struct GNUNET_TESTBED_InitMessage *) message;
1800 msize = ntohs (message->size);
1801 if (msize <= sizeof (struct GNUNET_TESTBED_InitMessage))
1804 GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
1807 msize -= sizeof (struct GNUNET_TESTBED_InitMessage);
1808 controller_hostname = (const char *) &msg[1];
1809 if ('\0' != controller_hostname[msize - 1])
1812 GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
1815 master_context = GNUNET_malloc (sizeof (struct Context));
1816 GNUNET_SERVER_client_keep (client);
1817 master_context->client = client;
1818 master_context->host_id = ntohl (msg->host_id);
1819 master_context->master_ip = GNUNET_strdup (controller_hostname);
1820 LOG_DEBUG ("Our IP: %s\n", master_context->master_ip);
1821 master_context->system =
1822 GNUNET_TESTING_system_create ("testbed", master_context->master_ip, hostname);
1824 GNUNET_TESTBED_host_create_with_id (master_context->host_id,
1825 master_context->master_ip,
1828 host_list_add (host);
1829 LOG_DEBUG ("Created master context with host ID: %u\n",
1830 master_context->host_id);
1831 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1836 * Message handler for GNUNET_MESSAGE_TYPE_TESTBED_ADDHOST messages
1839 * @param client identification of the client
1840 * @param message the actual message
1843 handle_add_host (void *cls, struct GNUNET_SERVER_Client *client,
1844 const struct GNUNET_MessageHeader *message)
1846 struct GNUNET_TESTBED_Host *host;
1847 const struct GNUNET_TESTBED_AddHostMessage *msg;
1848 struct GNUNET_TESTBED_HostConfirmedMessage *reply;
1853 uint16_t username_length;
1854 uint16_t hostname_length;
1855 uint16_t reply_size;
1858 msg = (const struct GNUNET_TESTBED_AddHostMessage *) message;
1859 msize = ntohs (msg->header.size);
1860 username = (char *) &msg[1];
1861 username_length = ntohs (msg->user_name_length);
1862 if (0 != username_length)
1864 /* msg must contain hostname */
1865 GNUNET_assert (msize > (sizeof (struct GNUNET_TESTBED_AddHostMessage) +
1866 username_length + 1));
1867 if (0 != username_length)
1868 GNUNET_assert ('\0' == username[username_length - 1]);
1869 hostname = username + username_length;
1871 msize - (sizeof (struct GNUNET_TESTBED_AddHostMessage) + username_length);
1872 GNUNET_assert ('\0' == hostname[hostname_length - 1]);
1873 GNUNET_assert (strlen (hostname) == hostname_length - 1);
1874 host_id = ntohl (msg->host_id);
1875 LOG_DEBUG ("Received ADDHOST %u message\n", host_id);
1876 LOG_DEBUG ("-------host id: %u\n", host_id);
1877 LOG_DEBUG ("-------hostname: %s\n", hostname);
1878 if (0 != username_length)
1879 LOG_DEBUG ("-------username: %s\n", username);
1882 LOG_DEBUG ("-------username: NULL\n");
1885 LOG_DEBUG ("-------ssh port: %u\n", ntohs (msg->ssh_port));
1887 GNUNET_TESTBED_host_create_with_id (host_id, hostname, username,
1888 ntohs (msg->ssh_port));
1889 GNUNET_assert (NULL != host);
1890 reply_size = sizeof (struct GNUNET_TESTBED_HostConfirmedMessage);
1891 if (GNUNET_OK != host_list_add (host))
1893 /* We are unable to add a host */
1894 emsg = "A host exists with given host-id";
1895 LOG_DEBUG ("%s: %u", emsg, host_id);
1896 GNUNET_TESTBED_host_destroy (host);
1897 reply_size += strlen (emsg) + 1;
1898 reply = GNUNET_malloc (reply_size);
1899 memcpy (&reply[1], emsg, strlen (emsg) + 1);
1903 LOG_DEBUG ("Added host %u at %u\n",
1904 host_id, master_context->host_id);
1905 reply = GNUNET_malloc (reply_size);
1907 reply->header.type = htons (GNUNET_MESSAGE_TYPE_TESTBED_ADDHOSTCONFIRM);
1908 reply->header.size = htons (reply_size);
1909 reply->host_id = htonl (host_id);
1910 queue_message (client, &reply->header);
1911 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1916 * Iterator over hash map entries.
1918 * @param cls closure
1919 * @param key current key code
1920 * @param value value in the hash map
1921 * @return GNUNET_YES if we should continue to
1926 ss_exists_iterator (void *cls, const struct GNUNET_HashCode *key, void *value)
1928 struct SharedService *queried_ss = cls;
1929 struct SharedService *ss = value;
1931 if (0 == strcmp (ss->name, queried_ss->name))
1939 * Message handler for GNUNET_MESSAGE_TYPE_TESTBED_ADDHOST messages
1942 * @param client identification of the client
1943 * @param message the actual message
1946 handle_configure_shared_service (void *cls, struct GNUNET_SERVER_Client *client,
1947 const struct GNUNET_MessageHeader *message)
1949 const struct GNUNET_TESTBED_ConfigureSharedServiceMessage *msg;
1950 struct SharedService *ss;
1952 struct GNUNET_HashCode hash;
1954 uint16_t service_name_size;
1956 msg = (const struct GNUNET_TESTBED_ConfigureSharedServiceMessage *) message;
1957 msg_size = ntohs (message->size);
1958 if (msg_size <= sizeof (struct GNUNET_TESTBED_ConfigureSharedServiceMessage))
1961 GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
1965 msg_size - sizeof (struct GNUNET_TESTBED_ConfigureSharedServiceMessage);
1966 service_name = (char *) &msg[1];
1967 if ('\0' != service_name[service_name_size - 1])
1970 GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
1973 LOG_DEBUG ("Received service sharing request for %s, with %d peers\n",
1974 service_name, ntohl (msg->num_peers));
1975 if (ntohl (msg->host_id) != master_context->host_id)
1977 route_message (ntohl (msg->host_id), message);
1978 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1981 GNUNET_SERVER_receive_done (client, GNUNET_OK);
1982 ss = GNUNET_malloc (sizeof (struct SharedService));
1983 ss->name = strdup (service_name);
1984 ss->num_shared = ntohl (msg->num_peers);
1985 GNUNET_CRYPTO_hash (ss->name, service_name_size, &hash);
1986 if (GNUNET_SYSERR ==
1987 GNUNET_CONTAINER_multihashmap_get_multiple (ss_map, &hash,
1988 &ss_exists_iterator, ss))
1990 LOG (GNUNET_ERROR_TYPE_WARNING,
1991 "Service %s already configured as a shared service. "
1992 "Ignoring service sharing request \n", ss->name);
1993 GNUNET_free (ss->name);
1997 GNUNET_CONTAINER_multihashmap_put (ss_map, &hash, ss,
1998 GNUNET_CONTAINER_MULTIHASHMAPOPTION_MULTIPLE);
2003 * Message handler for GNUNET_MESSAGE_TYPE_TESTBED_LCONTROLLERS message
2006 * @param client identification of the client
2007 * @param message the actual message
2010 handle_link_controllers (void *cls, struct GNUNET_SERVER_Client *client,
2011 const struct GNUNET_MessageHeader *message)
2013 const struct GNUNET_TESTBED_ControllerLinkMessage *msg;
2014 struct GNUNET_CONFIGURATION_Handle *cfg;
2015 struct LCFContextQueue *lcfq;
2016 struct Route *route;
2017 struct Route *new_route;
2021 uint32_t delegated_host_id;
2022 uint32_t slave_host_id;
2025 if (NULL == master_context)
2028 GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
2031 msize = ntohs (message->size);
2032 if (sizeof (struct GNUNET_TESTBED_ControllerLinkMessage) >= msize)
2035 GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
2038 msg = (const struct GNUNET_TESTBED_ControllerLinkMessage *) message;
2039 delegated_host_id = ntohl (msg->delegated_host_id);
2040 if (delegated_host_id == master_context->host_id)
2043 LOG (GNUNET_ERROR_TYPE_WARNING, "Trying to link ourselves\n");
2044 GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
2047 if ((delegated_host_id >= host_list_size) ||
2048 (NULL == host_list[delegated_host_id]))
2050 LOG (GNUNET_ERROR_TYPE_WARNING,
2051 "Delegated host %u not registered with us\n", delegated_host_id);
2052 GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
2055 slave_host_id = ntohl (msg->slave_host_id);
2056 if ((slave_host_id >= host_list_size) || (NULL == host_list[slave_host_id]))
2058 LOG (GNUNET_ERROR_TYPE_WARNING, "Slave host %u not registered with us\n",
2060 GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
2063 if (slave_host_id == delegated_host_id)
2065 LOG (GNUNET_ERROR_TYPE_WARNING, "Slave and delegated host are same\n");
2066 GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
2070 if (slave_host_id == master_context->host_id) /* Link from us */
2072 struct Slave *slave;
2073 struct LinkControllersContext *lcc;
2075 msize -= sizeof (struct GNUNET_TESTBED_ControllerLinkMessage);
2076 config_size = ntohs (msg->config_size);
2077 if ((delegated_host_id < slave_list_size) && (NULL != slave_list[delegated_host_id])) /* We have already added */
2079 LOG (GNUNET_ERROR_TYPE_WARNING, "Host %u already connected\n",
2081 GNUNET_SERVER_receive_done (client, GNUNET_OK);
2084 config = GNUNET_malloc (config_size);
2085 dest_size = (uLongf) config_size;
2087 uncompress ((Bytef *) config, &dest_size, (const Bytef *) &msg[1],
2090 GNUNET_break (0); /* Compression error */
2091 GNUNET_free (config);
2092 GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
2095 if (config_size != dest_size)
2097 LOG (GNUNET_ERROR_TYPE_WARNING, "Uncompressed config size mismatch\n");
2098 GNUNET_free (config);
2099 GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
2102 cfg = GNUNET_CONFIGURATION_create (); /* Free here or in lcfcontext */
2104 GNUNET_CONFIGURATION_deserialize (cfg, config, config_size, GNUNET_NO))
2106 GNUNET_break (0); /* Configuration parsing error */
2107 GNUNET_free (config);
2108 GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
2111 GNUNET_free (config);
2112 if ((delegated_host_id < slave_list_size) &&
2113 (NULL != slave_list[delegated_host_id]))
2115 GNUNET_break (0); /* Configuration parsing error */
2116 GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
2119 slave = GNUNET_malloc (sizeof (struct Slave));
2120 slave->host_id = delegated_host_id;
2121 slave->reghost_map = GNUNET_CONTAINER_multihashmap_create (100, GNUNET_NO);
2122 slave_list_add (slave);
2123 if (1 != msg->is_subordinate)
2126 GNUNET_TESTBED_controller_connect (cfg, host_list[slave->host_id],
2128 &slave_event_callback, slave);
2130 if (NULL != slave->controller)
2131 send_operation_success_msg (client, GNUNET_ntohll (msg->operation_id));
2133 send_operation_fail_msg (client, GNUNET_ntohll (msg->operation_id),
2134 "Could not connect to delegated controller");
2135 GNUNET_SERVER_receive_done (client, GNUNET_OK);
2138 lcc = GNUNET_malloc (sizeof (struct LinkControllersContext));
2139 lcc->operation_id = GNUNET_ntohll (msg->operation_id);
2140 GNUNET_SERVER_client_keep (client);
2141 lcc->client = client;
2143 slave->controller_proc =
2144 GNUNET_TESTBED_controller_start (master_context->master_ip,
2145 host_list[slave->host_id], cfg,
2146 &slave_status_callback, slave);
2147 GNUNET_CONFIGURATION_destroy (cfg);
2148 new_route = GNUNET_malloc (sizeof (struct Route));
2149 new_route->dest = delegated_host_id;
2150 new_route->thru = master_context->host_id;
2151 route_list_add (new_route);
2155 /* Route the request */
2156 if (slave_host_id >= route_list_size)
2158 LOG (GNUNET_ERROR_TYPE_WARNING, "No route towards slave host");
2159 GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
2162 lcfq = GNUNET_malloc (sizeof (struct LCFContextQueue));
2163 lcfq->lcf = GNUNET_malloc (sizeof (struct LCFContext));
2164 lcfq->lcf->delegated_host_id = delegated_host_id;
2165 lcfq->lcf->slave_host_id = slave_host_id;
2166 route = find_dest_route (slave_host_id);
2167 GNUNET_assert (NULL != route); /* because we add routes carefully */
2168 GNUNET_assert (route->dest < slave_list_size);
2169 GNUNET_assert (NULL != slave_list[route->dest]);
2170 lcfq->lcf->state = INIT;
2171 lcfq->lcf->operation_id = GNUNET_ntohll (msg->operation_id);
2172 lcfq->lcf->gateway = slave_list[route->dest];
2173 lcfq->lcf->msg = GNUNET_malloc (msize);
2174 (void) memcpy (lcfq->lcf->msg, msg, msize);
2175 GNUNET_SERVER_client_keep (client);
2176 lcfq->lcf->client = client;
2177 if (NULL == lcfq_head)
2179 GNUNET_assert (GNUNET_SCHEDULER_NO_TASK == lcf_proc_task_id);
2180 GNUNET_CONTAINER_DLL_insert_tail (lcfq_head, lcfq_tail, lcfq);
2181 lcf_proc_task_id = GNUNET_SCHEDULER_add_now (&lcf_proc_task, lcfq->lcf);
2184 GNUNET_CONTAINER_DLL_insert_tail (lcfq_head, lcfq_tail, lcfq);
2185 /* FIXME: Adding a new route should happen after the controllers are linked
2187 if (1 != msg->is_subordinate)
2189 GNUNET_SERVER_receive_done (client, GNUNET_OK);
2192 if ((delegated_host_id < route_list_size)
2193 && (NULL != route_list[delegated_host_id]))
2195 GNUNET_break_op (0); /* Are you trying to link delegated host twice
2196 with is subordinate flag set to GNUNET_YES? */
2197 GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
2200 new_route = GNUNET_malloc (sizeof (struct Route));
2201 new_route->dest = delegated_host_id;
2202 new_route->thru = route->dest;
2203 route_list_add (new_route);
2204 GNUNET_SERVER_receive_done (client, GNUNET_OK);
2209 * The task to be executed if the forwarded peer create operation has been
2212 * @param cls the FowardedOperationContext
2213 * @param tc the TaskContext from the scheduler
2216 peer_create_forward_timeout (void *cls,
2217 const struct GNUNET_SCHEDULER_TaskContext *tc)
2219 struct ForwardedOperationContext *fopc = cls;
2221 GNUNET_free (fopc->cls);
2222 forwarded_operation_timeout (fopc, tc);
2227 * Callback to be called when forwarded peer create operation is successfull. We
2228 * have to relay the reply msg back to the client
2230 * @param cls ForwardedOperationContext
2231 * @param msg the peer create success message
2234 peer_create_success_cb (void *cls, const struct GNUNET_MessageHeader *msg)
2236 struct ForwardedOperationContext *fopc = cls;
2237 struct Peer *remote_peer;
2239 if (ntohs (msg->type) == GNUNET_MESSAGE_TYPE_TESTBED_PEERCREATESUCCESS)
2241 GNUNET_assert (NULL != fopc->cls);
2242 remote_peer = fopc->cls;
2243 peer_list_add (remote_peer);
2245 forwarded_operation_reply_relay (fopc, msg);
2250 * Function to destroy a peer
2252 * @param peer the peer structure to destroy
2255 destroy_peer (struct Peer *peer)
2257 GNUNET_break (0 == peer->reference_cnt);
2258 if (GNUNET_YES == peer->is_remote)
2260 peer_list_remove (peer);
2264 if (GNUNET_YES == peer->details.local.is_running)
2266 GNUNET_TESTING_peer_stop (peer->details.local.peer);
2267 peer->details.local.is_running = GNUNET_NO;
2269 GNUNET_TESTING_peer_destroy (peer->details.local.peer);
2270 GNUNET_CONFIGURATION_destroy (peer->details.local.cfg);
2271 peer_list_remove (peer);
2277 * Callback to be called when forwarded peer destroy operation is successfull. We
2278 * have to relay the reply msg back to the client
2280 * @param cls ForwardedOperationContext
2281 * @param msg the peer create success message
2284 peer_destroy_success_cb (void *cls, const struct GNUNET_MessageHeader *msg)
2286 struct ForwardedOperationContext *fopc = cls;
2287 struct Peer *remote_peer;
2289 if (GNUNET_MESSAGE_TYPE_TESTBED_GENERICOPSUCCESS == ntohs (msg->type))
2291 remote_peer = fopc->cls;
2292 GNUNET_assert (NULL != remote_peer);
2293 remote_peer->destroy_flag = GNUNET_YES;
2294 if (0 == remote_peer->reference_cnt)
2295 destroy_peer (remote_peer);
2297 forwarded_operation_reply_relay (fopc, msg);
2303 * Handler for GNUNET_MESSAGE_TYPE_TESTBED_CREATEPEER messages
2306 * @param client identification of the client
2307 * @param message the actual message
2310 handle_peer_create (void *cls, struct GNUNET_SERVER_Client *client,
2311 const struct GNUNET_MessageHeader *message)
2313 const struct GNUNET_TESTBED_PeerCreateMessage *msg;
2314 struct GNUNET_TESTBED_PeerCreateSuccessEventMessage *reply;
2315 struct GNUNET_CONFIGURATION_Handle *cfg;
2316 struct ForwardedOperationContext *fo_ctxt;
2317 struct Route *route;
2322 uint32_t config_size;
2328 msize = ntohs (message->size);
2329 if (msize <= sizeof (struct GNUNET_TESTBED_PeerCreateMessage))
2331 GNUNET_break (0); /* We need configuration */
2332 GNUNET_SERVER_receive_done (client, GNUNET_OK);
2335 msg = (const struct GNUNET_TESTBED_PeerCreateMessage *) message;
2336 host_id = ntohl (msg->host_id);
2337 peer_id = ntohl (msg->peer_id);
2338 if (UINT32_MAX == peer_id)
2340 send_operation_fail_msg (client, GNUNET_ntohll (msg->operation_id),
2341 "Cannot create peer with given ID");
2342 GNUNET_SERVER_receive_done (client, GNUNET_OK);
2345 if (host_id == master_context->host_id)
2349 /* We are responsible for this peer */
2350 msize -= sizeof (struct GNUNET_TESTBED_PeerCreateMessage);
2351 config_size = ntohl (msg->config_size);
2352 config = GNUNET_malloc (config_size);
2353 dest_size = config_size;
2356 uncompress ((Bytef *) config, (uLongf *) & dest_size,
2357 (const Bytef *) &msg[1], (uLong) msize)))
2359 GNUNET_break (0); /* uncompression error */
2360 GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
2363 if (config_size != dest_size)
2365 GNUNET_break (0); /* Uncompressed config size mismatch */
2366 GNUNET_free (config);
2367 GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
2370 cfg = GNUNET_CONFIGURATION_create ();
2372 GNUNET_CONFIGURATION_deserialize (cfg, config, config_size, GNUNET_NO))
2374 GNUNET_break (0); /* Configuration parsing error */
2375 GNUNET_free (config);
2376 GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
2379 GNUNET_free (config);
2380 peer = GNUNET_malloc (sizeof (struct Peer));
2381 peer->is_remote = GNUNET_NO;
2382 peer->details.local.cfg = cfg;
2384 LOG_DEBUG ("Creating peer with id: %u\n", peer->id);
2385 peer->details.local.peer =
2386 GNUNET_TESTING_peer_configure (master_context->system,
2387 peer->details.local.cfg, peer->id,
2388 NULL /* Peer id */ ,
2390 if (NULL == peer->details.local.peer)
2392 LOG (GNUNET_ERROR_TYPE_WARNING, "Configuring peer failed: %s\n", emsg);
2396 GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
2399 peer->details.local.is_running = GNUNET_NO;
2400 peer_list_add (peer);
2402 GNUNET_malloc (sizeof
2403 (struct GNUNET_TESTBED_PeerCreateSuccessEventMessage));
2404 reply->header.size =
2405 htons (sizeof (struct GNUNET_TESTBED_PeerCreateSuccessEventMessage));
2406 reply->header.type = htons (GNUNET_MESSAGE_TYPE_TESTBED_PEERCREATESUCCESS);
2407 reply->peer_id = msg->peer_id;
2408 reply->operation_id = msg->operation_id;
2409 queue_message (client, &reply->header);
2410 GNUNET_SERVER_receive_done (client, GNUNET_OK);
2414 /* Forward peer create request */
2415 route = find_dest_route (host_id);
2419 GNUNET_SERVER_receive_done (client, GNUNET_OK);
2423 peer = GNUNET_malloc (sizeof (struct Peer));
2424 peer->is_remote = GNUNET_YES;
2426 peer->details.remote.slave = slave_list[route->dest];
2427 peer->details.remote.remote_host_id = host_id;
2428 fo_ctxt = GNUNET_malloc (sizeof (struct ForwardedOperationContext));
2429 GNUNET_SERVER_client_keep (client);
2430 fo_ctxt->client = client;
2431 fo_ctxt->operation_id = GNUNET_ntohll (msg->operation_id);
2432 fo_ctxt->cls = peer; //slave_list[route->dest]->controller;
2433 fo_ctxt->type = OP_PEER_CREATE;
2435 GNUNET_TESTBED_forward_operation_msg_ (slave_list [route->dest]->controller,
2436 fo_ctxt->operation_id,
2438 peer_create_success_cb, fo_ctxt);
2439 fo_ctxt->timeout_task =
2440 GNUNET_SCHEDULER_add_delayed (TIMEOUT, &peer_create_forward_timeout,
2442 GNUNET_CONTAINER_DLL_insert_tail (fopcq_head, fopcq_tail, fo_ctxt);
2443 GNUNET_SERVER_receive_done (client, GNUNET_OK);
2448 * Message handler for GNUNET_MESSAGE_TYPE_TESTBED_DESTROYPEER messages
2451 * @param client identification of the client
2452 * @param message the actual message
2455 handle_peer_destroy (void *cls, struct GNUNET_SERVER_Client *client,
2456 const struct GNUNET_MessageHeader *message)
2458 const struct GNUNET_TESTBED_PeerDestroyMessage *msg;
2459 struct ForwardedOperationContext *fopc;
2463 msg = (const struct GNUNET_TESTBED_PeerDestroyMessage *) message;
2464 peer_id = ntohl (msg->peer_id);
2465 LOG_DEBUG ("Received peer destory on peer: %u and operation id: %ul\n",
2466 peer_id, GNUNET_ntohll (msg->operation_id));
2467 if ((peer_list_size <= peer_id) || (NULL == peer_list[peer_id]))
2469 LOG (GNUNET_ERROR_TYPE_ERROR,
2470 "Asked to destroy a non existent peer with id: %u\n", peer_id);
2471 send_operation_fail_msg (client, GNUNET_ntohll (msg->operation_id),
2472 "Peer doesn't exist");
2473 GNUNET_SERVER_receive_done (client, GNUNET_OK);
2476 peer = peer_list[peer_id];
2477 if (GNUNET_YES == peer->is_remote)
2479 /* Forward the destory message to sub controller */
2480 fopc = GNUNET_malloc (sizeof (struct ForwardedOperationContext));
2481 GNUNET_SERVER_client_keep (client);
2482 fopc->client = client;
2484 fopc->type = OP_PEER_DESTROY;
2485 fopc->operation_id = GNUNET_ntohll (msg->operation_id);
2487 GNUNET_TESTBED_forward_operation_msg_ (peer->details.remote.slave->controller,
2488 fopc->operation_id, &msg->header,
2489 &peer_destroy_success_cb,
2491 fopc->timeout_task =
2492 GNUNET_SCHEDULER_add_delayed (TIMEOUT, &forwarded_operation_timeout,
2494 GNUNET_CONTAINER_DLL_insert_tail (fopcq_head, fopcq_tail, fopc);
2495 GNUNET_SERVER_receive_done (client, GNUNET_OK);
2498 peer->destroy_flag = GNUNET_YES;
2499 if (0 == peer->reference_cnt)
2500 destroy_peer (peer);
2502 LOG (GNUNET_ERROR_TYPE_WARNING,
2503 "Delaying peer destroy as peer is currently in use\n");
2504 send_operation_success_msg (client, GNUNET_ntohll (msg->operation_id));
2505 GNUNET_SERVER_receive_done (client, GNUNET_OK);
2510 * Message handler for GNUNET_MESSAGE_TYPE_TESTBED_DESTROYPEER messages
2513 * @param client identification of the client
2514 * @param message the actual message
2517 handle_peer_start (void *cls, struct GNUNET_SERVER_Client *client,
2518 const struct GNUNET_MessageHeader *message)
2520 const struct GNUNET_TESTBED_PeerStartMessage *msg;
2521 struct GNUNET_TESTBED_PeerEventMessage *reply;
2522 struct ForwardedOperationContext *fopc;
2526 msg = (const struct GNUNET_TESTBED_PeerStartMessage *) message;
2527 peer_id = ntohl (msg->peer_id);
2528 if ((peer_id >= peer_list_size) || (NULL == peer_list[peer_id]))
2531 LOG (GNUNET_ERROR_TYPE_ERROR,
2532 "Asked to start a non existent peer with id: %u\n", peer_id);
2533 GNUNET_SERVER_receive_done (client, GNUNET_OK);
2536 peer = peer_list[peer_id];
2537 if (GNUNET_YES == peer->is_remote)
2539 fopc = GNUNET_malloc (sizeof (struct ForwardedOperationContext));
2540 GNUNET_SERVER_client_keep (client);
2541 fopc->client = client;
2542 fopc->operation_id = GNUNET_ntohll (msg->operation_id);
2543 fopc->type = OP_PEER_START;
2545 GNUNET_TESTBED_forward_operation_msg_ (peer->details.remote.slave->controller,
2546 fopc->operation_id, &msg->header,
2547 &forwarded_operation_reply_relay,
2549 fopc->timeout_task =
2550 GNUNET_SCHEDULER_add_delayed (TIMEOUT, &forwarded_operation_timeout,
2552 GNUNET_CONTAINER_DLL_insert_tail (fopcq_head, fopcq_tail, fopc);
2553 GNUNET_SERVER_receive_done (client, GNUNET_OK);
2556 if (GNUNET_OK != GNUNET_TESTING_peer_start (peer->details.local.peer))
2558 send_operation_fail_msg (client, GNUNET_ntohll (msg->operation_id),
2560 GNUNET_SERVER_receive_done (client, GNUNET_OK);
2563 peer->details.local.is_running = GNUNET_YES;
2564 reply = GNUNET_malloc (sizeof (struct GNUNET_TESTBED_PeerEventMessage));
2565 reply->header.type = htons (GNUNET_MESSAGE_TYPE_TESTBED_PEEREVENT);
2566 reply->header.size = htons (sizeof (struct GNUNET_TESTBED_PeerEventMessage));
2567 reply->event_type = htonl (GNUNET_TESTBED_ET_PEER_START);
2568 reply->host_id = htonl (master_context->host_id);
2569 reply->peer_id = msg->peer_id;
2570 reply->operation_id = msg->operation_id;
2571 queue_message (client, &reply->header);
2572 GNUNET_SERVER_receive_done (client, GNUNET_OK);
2577 * Message handler for GNUNET_MESSAGE_TYPE_TESTBED_DESTROYPEER messages
2580 * @param client identification of the client
2581 * @param message the actual message
2584 handle_peer_stop (void *cls, struct GNUNET_SERVER_Client *client,
2585 const struct GNUNET_MessageHeader *message)
2587 const struct GNUNET_TESTBED_PeerStopMessage *msg;
2588 struct GNUNET_TESTBED_PeerEventMessage *reply;
2589 struct ForwardedOperationContext *fopc;
2593 msg = (const struct GNUNET_TESTBED_PeerStopMessage *) message;
2594 peer_id = ntohl (msg->peer_id);
2595 if ((peer_id >= peer_list_size) || (NULL == peer_list[peer_id]))
2597 send_operation_fail_msg (client, GNUNET_ntohll (msg->operation_id),
2599 GNUNET_SERVER_receive_done (client, GNUNET_OK);
2602 peer = peer_list[peer_id];
2603 if (GNUNET_YES == peer->is_remote)
2605 fopc = GNUNET_malloc (sizeof (struct ForwardedOperationContext));
2606 GNUNET_SERVER_client_keep (client);
2607 fopc->client = client;
2608 fopc->operation_id = GNUNET_ntohll (msg->operation_id);
2609 fopc->type = OP_PEER_STOP;
2611 GNUNET_TESTBED_forward_operation_msg_ (peer->details.remote.slave->controller,
2612 fopc->operation_id, &msg->header,
2613 &forwarded_operation_reply_relay,
2615 fopc->timeout_task =
2616 GNUNET_SCHEDULER_add_delayed (TIMEOUT, &forwarded_operation_timeout,
2618 GNUNET_CONTAINER_DLL_insert_tail (fopcq_head, fopcq_tail, fopc);
2619 GNUNET_SERVER_receive_done (client, GNUNET_OK);
2622 if (GNUNET_OK != GNUNET_TESTING_peer_stop (peer->details.local.peer))
2624 send_operation_fail_msg (client, GNUNET_ntohll (msg->operation_id),
2625 "Peer not running");
2626 GNUNET_SERVER_receive_done (client, GNUNET_OK);
2629 peer->details.local.is_running = GNUNET_NO;
2630 reply = GNUNET_malloc (sizeof (struct GNUNET_TESTBED_PeerEventMessage));
2631 reply->header.type = htons (GNUNET_MESSAGE_TYPE_TESTBED_PEEREVENT);
2632 reply->header.size = htons (sizeof (struct GNUNET_TESTBED_PeerEventMessage));
2633 reply->event_type = htonl (GNUNET_TESTBED_ET_PEER_STOP);
2634 reply->host_id = htonl (master_context->host_id);
2635 reply->peer_id = msg->peer_id;
2636 reply->operation_id = msg->operation_id;
2637 queue_message (client, &reply->header);
2638 GNUNET_SERVER_receive_done (client, GNUNET_OK);
2643 * Handler for GNUNET_MESSAGE_TYPE_TESTBED_GETPEERCONFIG messages
2646 * @param client identification of the client
2647 * @param message the actual message
2650 handle_peer_get_config (void *cls, struct GNUNET_SERVER_Client *client,
2651 const struct GNUNET_MessageHeader *message)
2653 const struct GNUNET_TESTBED_PeerGetConfigurationMessage *msg;
2654 struct GNUNET_TESTBED_PeerConfigurationInformationMessage *reply;
2663 msg = (const struct GNUNET_TESTBED_PeerGetConfigurationMessage *) message;
2664 peer_id = ntohl (msg->peer_id);
2665 if ((peer_id >= peer_list_size) || (NULL == peer_list[peer_id]))
2667 send_operation_fail_msg (client, GNUNET_ntohll (msg->operation_id),
2669 GNUNET_SERVER_receive_done (client, GNUNET_OK);
2672 peer = peer_list[peer_id];
2673 if (GNUNET_YES == peer->is_remote)
2675 struct ForwardedOperationContext *fopc;
2677 fopc = GNUNET_malloc (sizeof (struct ForwardedOperationContext));
2678 GNUNET_SERVER_client_keep (client);
2679 fopc->client = client;
2680 fopc->operation_id = GNUNET_ntohll (msg->operation_id);
2681 fopc->type = OP_PEER_INFO;
2683 GNUNET_TESTBED_forward_operation_msg_ (peer->details.remote.slave->controller,
2684 fopc->operation_id, &msg->header,
2685 &forwarded_operation_reply_relay,
2687 fopc->timeout_task =
2688 GNUNET_SCHEDULER_add_delayed (TIMEOUT, &forwarded_operation_timeout,
2690 GNUNET_CONTAINER_DLL_insert_tail (fopcq_head, fopcq_tail, fopc);
2691 GNUNET_SERVER_receive_done (client, GNUNET_OK);
2695 GNUNET_CONFIGURATION_serialize (peer_list[peer_id]->details.local.cfg,
2697 xc_size = GNUNET_TESTBED_compress_config_ (config, c_size, &xconfig);
2698 GNUNET_free (config);
2701 sizeof (struct GNUNET_TESTBED_PeerConfigurationInformationMessage);
2702 reply = GNUNET_realloc (xconfig, msize);
2703 (void) memmove (&reply[1], reply, xc_size);
2704 reply->header.size = htons (msize);
2705 reply->header.type = htons (GNUNET_MESSAGE_TYPE_TESTBED_PEERCONFIG);
2706 reply->peer_id = msg->peer_id;
2707 reply->operation_id = msg->operation_id;
2708 GNUNET_TESTING_peer_get_identity (peer_list[peer_id]->details.local.peer,
2709 &reply->peer_identity);
2710 reply->config_size = htons ((uint16_t) c_size);
2711 queue_message (client, &reply->header);
2712 GNUNET_SERVER_receive_done (client, GNUNET_OK);
2717 * Cleanup overlay connect context structure
2719 * @param occ the overlay connect context
2722 cleanup_occ (struct OverlayConnectContext *occ)
2724 LOG_DEBUG ("Cleaning up occ\n");
2725 GNUNET_free_non_null (occ->emsg);
2726 GNUNET_free_non_null (occ->hello);
2727 GNUNET_SERVER_client_drop (occ->client);
2728 if (NULL != occ->opc)
2729 GNUNET_TESTBED_forward_operation_msg_cancel_ (occ->opc);
2730 if (GNUNET_SCHEDULER_NO_TASK != occ->send_hello_task)
2731 GNUNET_SCHEDULER_cancel (occ->send_hello_task);
2732 if (GNUNET_SCHEDULER_NO_TASK != occ->cleanup_task)
2733 GNUNET_SCHEDULER_cancel (occ->cleanup_task);
2734 if (GNUNET_SCHEDULER_NO_TASK != occ->timeout_task)
2735 GNUNET_SCHEDULER_cancel (occ->timeout_task);
2736 if (NULL != occ->ch)
2738 GNUNET_CORE_disconnect (occ->ch);
2739 occ->peer->reference_cnt--;
2741 if (NULL != occ->ghh)
2742 GNUNET_TRANSPORT_get_hello_cancel (occ->ghh);
2743 if (NULL != occ->ohh)
2744 GNUNET_TRANSPORT_offer_hello_cancel (occ->ohh);
2745 if (NULL != occ->tch)
2746 GNUNET_TRANSPORT_try_connect_cancel (occ->tch);
2747 if (NULL != occ->p1th)
2749 GNUNET_TRANSPORT_disconnect (occ->p1th);
2750 occ->peer->reference_cnt--;
2752 if (NULL != occ->p2th)
2754 GNUNET_TRANSPORT_disconnect (occ->p2th);
2755 peer_list[occ->other_peer_id]->reference_cnt--;
2757 if ((GNUNET_YES == occ->peer->destroy_flag)
2758 && (0 == occ->peer->reference_cnt))
2759 destroy_peer (occ->peer);
2760 if ((NULL == occ->peer2_controller)
2761 && (GNUNET_YES == peer_list[occ->other_peer_id]->destroy_flag)
2762 && (0 == peer_list[occ->other_peer_id]->reference_cnt))
2763 destroy_peer (peer_list[occ->other_peer_id]);
2764 GNUNET_CONTAINER_DLL_remove (occq_head, occq_tail, occ);
2770 * Task for cleaing up overlay connect context structure
2772 * @param cls the overlay connect context
2773 * @param tc the task context
2776 do_cleanup_occ (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
2778 struct OverlayConnectContext *occ = cls;
2780 occ->cleanup_task = GNUNET_SCHEDULER_NO_TASK;
2786 * Task which will be run when overlay connect request has been timed out
2788 * @param cls the OverlayConnectContext
2789 * @param tc the TaskContext
2792 timeout_overlay_connect (void *cls,
2793 const struct GNUNET_SCHEDULER_TaskContext *tc)
2795 struct OverlayConnectContext *occ = cls;
2797 occ->timeout_task = GNUNET_SCHEDULER_NO_TASK;
2798 LOG (GNUNET_ERROR_TYPE_WARNING,
2799 "Timeout while connecting peers %u and %u\n",
2800 occ->peer_id, occ->other_peer_id);
2801 send_operation_fail_msg (occ->client, occ->op_id, occ->emsg);
2808 * Function called to notify transport users that another
2809 * peer connected to us.
2811 * @param cls closure
2812 * @param new_peer the peer that connected
2813 * @param ats performance data
2814 * @param ats_count number of entries in ats (excluding 0-termination)
2817 overlay_connect_notify (void *cls, const struct GNUNET_PeerIdentity *new_peer,
2818 const struct GNUNET_ATS_Information *ats,
2819 unsigned int ats_count)
2821 struct OverlayConnectContext *occ = cls;
2822 struct GNUNET_TESTBED_ConnectionEventMessage *msg;
2824 char *other_peer_str;
2826 LOG_DEBUG ("Overlay connect notify\n");
2828 memcmp (new_peer, &occ->peer_identity,
2829 sizeof (struct GNUNET_PeerIdentity)))
2831 new_peer_str = GNUNET_strdup (GNUNET_i2s (new_peer));
2832 other_peer_str = GNUNET_strdup (GNUNET_i2s (&occ->other_peer_identity));
2834 memcmp (new_peer, &occ->other_peer_identity,
2835 sizeof (struct GNUNET_PeerIdentity)))
2837 LOG_DEBUG ("Unexpected peer %4s connected when expecting peer %4s\n",
2838 new_peer_str, other_peer_str);
2839 GNUNET_free (new_peer_str);
2840 GNUNET_free (other_peer_str);
2843 GNUNET_free (new_peer_str);
2844 LOG_DEBUG ("Peer %4s connected to peer %4s\n", other_peer_str,
2845 GNUNET_i2s (&occ->peer_identity));
2846 GNUNET_free (other_peer_str);
2847 if (GNUNET_SCHEDULER_NO_TASK != occ->send_hello_task)
2849 GNUNET_SCHEDULER_cancel (occ->send_hello_task);
2850 occ->send_hello_task = GNUNET_SCHEDULER_NO_TASK;
2852 GNUNET_assert (GNUNET_SCHEDULER_NO_TASK != occ->timeout_task);
2853 GNUNET_SCHEDULER_cancel (occ->timeout_task);
2854 occ->timeout_task = GNUNET_SCHEDULER_NO_TASK;
2855 GNUNET_free_non_null (occ->emsg);
2857 if (NULL != occ->p2th)
2859 GNUNET_TRANSPORT_disconnect (occ->p2th);
2860 peer_list[occ->other_peer_id]->reference_cnt--;
2863 LOG_DEBUG ("Peers connected - Sending overlay connect success\n");
2864 msg = GNUNET_malloc (sizeof (struct GNUNET_TESTBED_ConnectionEventMessage));
2866 htons (sizeof (struct GNUNET_TESTBED_ConnectionEventMessage));
2867 msg->header.type = htons (GNUNET_MESSAGE_TYPE_TESTBED_PEERCONEVENT);
2868 msg->event_type = htonl (GNUNET_TESTBED_ET_CONNECT);
2869 msg->peer1 = htonl (occ->peer_id);
2870 msg->peer2 = htonl (occ->other_peer_id);
2871 msg->operation_id = GNUNET_htonll (occ->op_id);
2872 queue_message (occ->client, &msg->header);
2873 occ->cleanup_task = GNUNET_SCHEDULER_add_now (&do_cleanup_occ, occ);
2874 //cleanup_occ (occ);
2879 * Callback to be called with result of the try connect request.
2881 * @param cls the overlay connect context
2882 * @param result GNUNET_OK if message was transmitted to transport service
2883 * GNUNET_SYSERR if message was not transmitted to transport service
2886 try_connect_cb (void *cls, const int result)
2888 struct OverlayConnectContext *occ = cls;
2891 if (GNUNET_OK == result)
2893 GNUNET_free_non_null (occ->emsg);
2894 occ->emsg = GNUNET_strdup ("Waiting for transport to connect");
2895 //return; FIXME: should return here
2897 // GNUNET_break (0);
2898 occ->tch = GNUNET_TRANSPORT_try_connect (occ->p2th, &occ->peer_identity,
2899 &try_connect_cb, occ);
2904 * Task to offer HELLO of peer 1 to peer 2 and try to make peer 2 to connect to
2907 * @param cls the OverlayConnectContext
2908 * @param tc the TaskContext from scheduler
2911 send_hello (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc);
2915 * Task that is run when hello has been sent
2917 * @param cls the overlay connect context
2918 * @param tc the scheduler task context; if tc->reason =
2919 * GNUNET_SCHEDULER_REASON_TIMEOUT then sending HELLO failed; if
2920 * GNUNET_SCHEDULER_REASON_READ_READY is succeeded
2923 occ_hello_sent_cb (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
2925 struct OverlayConnectContext *occ = cls;
2928 GNUNET_assert (GNUNET_SCHEDULER_NO_TASK == occ->send_hello_task);
2929 if (GNUNET_SCHEDULER_REASON_TIMEOUT == tc->reason)
2932 goto schedule_send_hello;
2934 if (GNUNET_SCHEDULER_REASON_READ_READY != tc->reason)
2939 GNUNET_free_non_null (occ->emsg);
2940 occ->emsg = GNUNET_strdup ("Timeout while try connect\n");
2941 occ->tch = GNUNET_TRANSPORT_try_connect (occ->p2th, &occ->peer_identity,
2942 &try_connect_cb, occ);
2943 if (NULL != occ->tch)
2947 schedule_send_hello:
2948 GNUNET_free_non_null (occ->emsg);
2949 occ->emsg = GNUNET_strdup ("Timeout while offering HELLO to other peer");
2950 occ->send_hello_task = GNUNET_SCHEDULER_add_now (&send_hello, occ);
2955 * Task to offer HELLO of peer 1 to peer 2 and try to make peer 2 to connect to
2958 * @param cls the OverlayConnectContext
2959 * @param tc the TaskContext from scheduler
2962 send_hello (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
2964 struct OverlayConnectContext *occ = cls;
2965 char *other_peer_str;
2967 occ->send_hello_task = GNUNET_SCHEDULER_NO_TASK;
2968 if (0 != (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN))
2970 GNUNET_assert (NULL != occ->hello);
2971 other_peer_str = GNUNET_strdup (GNUNET_i2s (&occ->other_peer_identity));
2972 if (NULL != occ->peer2_controller)
2974 struct GNUNET_TESTBED_RequestConnectMessage *msg;
2976 uint16_t hello_size;
2978 LOG_DEBUG ("Offering HELLO of %s to %s via Remote Overlay Request\n",
2979 GNUNET_i2s (&occ->peer_identity), other_peer_str);
2980 hello_size = ntohs (occ->hello->size);
2981 msize = sizeof (struct GNUNET_TESTBED_RequestConnectMessage) + hello_size;
2982 msg = GNUNET_malloc (msize);
2983 msg->header.type = htons (GNUNET_MESSAGE_TYPE_TESTBED_REQUESTCONNECT);
2984 msg->header.size = htons (msize);
2985 msg->peer = htonl (occ->other_peer_id);
2986 msg->operation_id = GNUNET_htonll (occ->op_id);
2987 (void) memcpy (&msg->peer_identity, &occ->peer_identity,
2988 sizeof (struct GNUNET_PeerIdentity));
2989 memcpy (msg->hello, occ->hello, hello_size);
2990 GNUNET_TESTBED_queue_message_ (occ->peer2_controller, &msg->header);
2994 LOG_DEBUG ("Offering HELLO of %s to %s\n",
2995 GNUNET_i2s (&occ->peer_identity), other_peer_str);
2996 occ->ohh = GNUNET_TRANSPORT_offer_hello (occ->p2th,
3000 if (NULL == occ->ohh)
3003 occ->send_hello_task =
3004 GNUNET_SCHEDULER_add_delayed
3005 (GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_MILLISECONDS,
3006 100 + GNUNET_CRYPTO_random_u32
3007 (GNUNET_CRYPTO_QUALITY_WEAK, 500)),
3011 GNUNET_free (other_peer_str);
3015 * Test for checking whether HELLO message is empty
3017 * @param cls empty flag to set
3018 * @param address the HELLO
3019 * @param expiration expiration of the HELLO
3023 test_address (void *cls, const struct GNUNET_HELLO_Address *address,
3024 struct GNUNET_TIME_Absolute expiration)
3034 * Function called whenever there is an update to the HELLO of peers in the
3035 * OverlayConnectClosure. If we have a valid HELLO, we connect to the peer 2's
3036 * transport and offer peer 1's HELLO and ask peer 2 to connect to peer 1
3038 * @param cls closure
3039 * @param hello our updated HELLO
3042 hello_update_cb (void *cls, const struct GNUNET_MessageHeader *hello)
3044 struct OverlayConnectContext *occ = cls;
3048 msize = ntohs (hello->size);
3050 (void) GNUNET_HELLO_iterate_addresses ((const struct GNUNET_HELLO_Message *)
3051 hello, GNUNET_NO, &test_address,
3053 if (GNUNET_YES == empty)
3055 LOG_DEBUG ("HELLO of %s is empty\n", GNUNET_i2s (&occ->peer_identity));
3058 LOG_DEBUG ("Received HELLO of %s\n", GNUNET_i2s (&occ->peer_identity));
3059 occ->hello = GNUNET_malloc (msize);
3060 memcpy (occ->hello, hello, msize);
3061 GNUNET_TRANSPORT_get_hello_cancel (occ->ghh);
3063 GNUNET_TRANSPORT_disconnect (occ->p1th);
3065 occ->peer->reference_cnt--;
3066 GNUNET_free_non_null (occ->emsg);
3067 if (NULL == occ->peer2_controller)
3069 peer_list[occ->other_peer_id]->reference_cnt++;
3071 GNUNET_TRANSPORT_connect (peer_list[occ->other_peer_id]->details.local.cfg,
3072 &occ->other_peer_identity, NULL, NULL, NULL,
3074 if (NULL == occ->p2th)
3076 GNUNET_asprintf (&occ->emsg, "Cannot connect to TRANSPORT of %s\n",
3077 GNUNET_i2s (&occ->other_peer_identity));
3078 GNUNET_SCHEDULER_cancel (occ->timeout_task);
3079 occ->timeout_task = GNUNET_SCHEDULER_add_now (&timeout_overlay_connect, occ);
3083 occ->emsg = GNUNET_strdup ("Timeout while offering HELLO to other peer");
3084 occ->send_hello_task = GNUNET_SCHEDULER_add_now (&send_hello, occ);
3089 * Function called after GNUNET_CORE_connect has succeeded (or failed
3090 * for good). Note that the private key of the peer is intentionally
3091 * not exposed here; if you need it, your process should try to read
3092 * the private key file directly (which should work if you are
3095 * @param cls closure
3096 * @param server handle to the server, NULL if we failed
3097 * @param my_identity ID of this peer, NULL if we failed
3100 core_startup_cb (void *cls, struct GNUNET_CORE_Handle *server,
3101 const struct GNUNET_PeerIdentity *my_identity)
3103 struct OverlayConnectContext *occ = cls;
3105 GNUNET_free_non_null (occ->emsg);
3106 occ->emsg = GNUNET_strdup ("Failed to connect to CORE\n");
3107 if ((NULL == server) || (NULL == my_identity))
3109 GNUNET_free (occ->emsg);
3112 memcpy (&occ->peer_identity, my_identity,
3113 sizeof (struct GNUNET_PeerIdentity));
3114 occ->peer->reference_cnt++;
3116 GNUNET_TRANSPORT_connect (occ->peer->details.local.cfg,
3117 &occ->peer_identity, NULL, NULL, NULL, NULL);
3118 if (NULL == occ->p1th)
3120 GNUNET_asprintf (&occ->emsg, "Cannot connect to TRANSPORT of peers %4s",
3121 GNUNET_i2s (&occ->peer_identity));
3124 LOG_DEBUG ("Acquiring HELLO of peer %s\n", GNUNET_i2s (&occ->peer_identity));
3125 occ->emsg = GNUNET_strdup ("Timeout while acquiring HELLO message");
3126 occ->ghh = GNUNET_TRANSPORT_get_hello (occ->p1th, &hello_update_cb, occ);
3130 GNUNET_SCHEDULER_cancel (occ->timeout_task);
3131 occ->timeout_task = GNUNET_SCHEDULER_add_now (&timeout_overlay_connect, occ);
3137 * Callback to be called when forwarded get peer config operation as part of
3138 * overlay connect is successfull. Connection to Peer 1's core is made and is
3139 * checked for new connection from peer 2
3141 * @param cls ForwardedOperationContext
3142 * @param msg the peer create success message
3145 overlay_connect_get_config (void *cls, const struct GNUNET_MessageHeader *msg)
3147 struct OverlayConnectContext *occ = cls;
3148 const struct GNUNET_TESTBED_PeerConfigurationInformationMessage *cmsg;
3149 const struct GNUNET_CORE_MessageHandler no_handlers[] = {
3154 if (GNUNET_MESSAGE_TYPE_TESTBED_PEERCONFIG != ntohs (msg->type))
3156 cmsg = (const struct GNUNET_TESTBED_PeerConfigurationInformationMessage *)
3158 memcpy (&occ->other_peer_identity, &cmsg->peer_identity,
3159 sizeof (struct GNUNET_PeerIdentity));
3160 GNUNET_free_non_null (occ->emsg);
3161 occ->emsg = GNUNET_strdup ("Timeout while connecting to CORE");
3162 occ->peer->reference_cnt++;
3164 GNUNET_CORE_connect (occ->peer->details.local.cfg, occ, &core_startup_cb,
3165 &overlay_connect_notify, NULL, NULL, GNUNET_NO, NULL,
3166 GNUNET_NO, no_handlers);
3167 if (NULL == occ->ch)
3172 GNUNET_SCHEDULER_cancel (occ->timeout_task);
3174 GNUNET_SCHEDULER_add_now (&timeout_overlay_connect, occ);
3179 * Callback which will be called to after a host registration succeeded or failed
3181 * @param cls the RegisteredHostContext
3182 * @param emsg the error message; NULL if host registration is successful
3185 registeredhost_registration_completion (void *cls, const char *emsg)
3187 struct RegisteredHostContext *rhc = cls;
3188 struct GNUNET_CONFIGURATION_Handle *cfg;
3189 uint32_t peer2_host_id;
3191 /* if (NULL != rhc->focc_dll_head) */
3192 /* process_next_focc (rhc); */
3193 peer2_host_id = GNUNET_TESTBED_host_get_id_ (rhc->reg_host);
3194 GNUNET_assert (RHC_INIT == rhc->state);
3195 GNUNET_assert (NULL == rhc->sub_op);
3196 if ((NULL == rhc->gateway2)
3197 || ((peer2_host_id < slave_list_size) /* Check if we have the needed config */
3198 && (NULL != slave_list[peer2_host_id])))
3200 rhc->state = RHC_LINK;
3201 cfg = (NULL == rhc->gateway2) ? our_config : slave_list[peer2_host_id]->cfg;
3203 GNUNET_TESTBED_controller_link (rhc,
3204 rhc->gateway->controller,
3211 rhc->state = RHC_GET_CFG;
3212 rhc->sub_op = GNUNET_TESTBED_get_slave_config (rhc,
3213 rhc->gateway2->controller,
3219 * Iterator to match a registered host context
3221 * @param cls pointer 2 pointer of RegisteredHostContext
3222 * @param key current key code
3223 * @param value value in the hash map
3224 * @return GNUNET_YES if we should continue to
3229 reghost_match_iterator (void *cls,
3230 const struct GNUNET_HashCode * key,
3233 struct RegisteredHostContext **rh = cls;
3234 struct RegisteredHostContext *rh_val = value;
3236 if ((rh_val->host == (*rh)->host) && (rh_val->reg_host == (*rh)->reg_host))
3247 * Function to generate the hashcode corresponding to a RegisteredHostContext
3249 * @param reg_host the host which is being registered in RegisteredHostContext
3250 * @param host the host of the controller which has to connect to the above rhost
3251 * @return the hashcode
3253 static struct GNUNET_HashCode
3254 hash_hosts (struct GNUNET_TESTBED_Host *reg_host,
3255 struct GNUNET_TESTBED_Host *host)
3257 struct GNUNET_HashCode hash;
3258 uint32_t host_ids[2];
3260 host_ids[0] = GNUNET_TESTBED_host_get_id_ (reg_host);
3261 host_ids[1] = GNUNET_TESTBED_host_get_id_ (host);
3262 GNUNET_CRYPTO_hash (host_ids, sizeof (host_ids), &hash);
3268 * Handler for GNUNET_MESSAGE_TYPE_TESTBED_OLCONNECT messages
3271 * @param client identification of the client
3272 * @param message the actual message
3275 handle_overlay_connect (void *cls, struct GNUNET_SERVER_Client *client,
3276 const struct GNUNET_MessageHeader *message)
3278 const struct GNUNET_TESTBED_OverlayConnectMessage *msg;
3279 const struct GNUNET_CORE_MessageHandler no_handlers[] = {
3283 struct OverlayConnectContext *occ;
3284 struct GNUNET_TESTBED_Controller *peer2_controller;
3285 uint64_t operation_id;
3288 uint32_t peer2_host_id;
3290 msg = (const struct GNUNET_TESTBED_OverlayConnectMessage *) message;
3291 p1 = ntohl (msg->peer1);
3292 p2 = ntohl (msg->peer2);
3293 peer2_host_id = ntohl (msg->peer2_host_id);
3294 GNUNET_assert (p1 < peer_list_size);
3295 GNUNET_assert (NULL != peer_list[p1]);
3296 peer = peer_list[p1];
3297 operation_id = GNUNET_ntohll (msg->operation_id);
3298 LOG_DEBUG ("Received overlay connect for peers %u and %u with op id: 0x%lx\n",
3299 p1, p2, operation_id);
3300 if (GNUNET_YES == peer->is_remote)
3302 struct ForwardedOperationContext *fopc;
3303 struct Route *route_to_peer2_host;
3304 struct Route *route_to_peer1_host;
3306 LOG_DEBUG ("Forwarding overlay connect\n");
3307 route_to_peer2_host = NULL;
3308 route_to_peer1_host = NULL;
3309 route_to_peer2_host = find_dest_route (peer2_host_id);
3310 if ((NULL != route_to_peer2_host)
3311 || (peer2_host_id == master_context->host_id))
3313 /* Peer 2 either below us OR with us */
3314 route_to_peer1_host =
3315 find_dest_route (peer_list[p1]->details.remote.remote_host_id);
3316 /* Because we get this message only if we know where peer 1 is */
3317 GNUNET_assert (NULL != route_to_peer1_host);
3318 if ((peer2_host_id == master_context->host_id)
3319 || (route_to_peer2_host->dest != route_to_peer1_host->dest))
3321 /* Peer2 is either with us OR peer1 and peer2 can be reached through
3322 different gateways */
3323 struct GNUNET_HashCode hash;
3324 struct RegisteredHostContext *rhc;
3327 rhc = GNUNET_malloc (sizeof (struct RegisteredHostContext));
3328 if (NULL != route_to_peer2_host)
3329 rhc->reg_host = host_list[route_to_peer2_host->dest];
3331 rhc->reg_host = host_list[master_context->host_id];
3332 rhc->host = host_list[route_to_peer1_host->dest];
3333 GNUNET_assert (NULL != rhc->reg_host);
3334 GNUNET_assert (NULL != rhc->host);
3335 rhc->gateway = peer->details.remote.slave;
3336 rhc->gateway2 = (NULL == route_to_peer2_host) ? NULL :
3337 slave_list[route_to_peer2_host->dest];
3338 rhc->state = RHC_INIT;
3339 GNUNET_SERVER_client_keep (client);
3340 rhc->client = client;
3341 hash = hash_hosts (rhc->reg_host, rhc->host);
3342 skip_focc = GNUNET_NO;
3344 GNUNET_CONTAINER_multihashmap_contains
3345 (peer->details.remote.slave->reghost_map, &hash))
3346 || (GNUNET_SYSERR != GNUNET_CONTAINER_multihashmap_get_multiple
3347 (peer->details.remote.slave->reghost_map, &hash,
3348 reghost_match_iterator, &rhc)))
3350 /* create and add a new registerd host context */
3351 /* add the focc to its queue */
3352 GNUNET_CONTAINER_multihashmap_put
3353 (peer->details.remote.slave->reghost_map,
3354 &hash, rhc, GNUNET_CONTAINER_MULTIHASHMAPOPTION_MULTIPLE);
3355 GNUNET_assert (NULL != host_list[peer2_host_id]);
3356 queue_host_registration (peer->details.remote.slave,
3357 registeredhost_registration_completion, rhc,
3358 host_list[peer2_host_id]);
3361 /* rhc is now set to the existing one from the hash map by
3362 reghost_match_iterator() */
3363 /* if queue is empty then ignore creating focc and proceed with
3364 normal forwarding */
3365 if (RHC_OL_CONNECT == rhc->state)
3366 skip_focc = GNUNET_YES;
3368 if (GNUNET_NO == skip_focc)
3370 struct ForwardedOverlayConnectContext *focc;
3372 focc = GNUNET_malloc (sizeof (struct ForwardedOverlayConnectContext));
3375 focc->peer2_host_id = peer2_host_id;
3376 focc->orig_msg = GNUNET_copy_message (message);
3377 focc->operation_id = operation_id;
3378 GNUNET_CONTAINER_DLL_insert_tail (rhc->focc_dll_head,
3381 GNUNET_SERVER_receive_done (client, GNUNET_OK);
3386 fopc = GNUNET_malloc (sizeof (struct ForwardedOperationContext));
3387 GNUNET_SERVER_client_keep (client);
3388 fopc->client = client;
3389 fopc->operation_id = operation_id;
3390 fopc->type = OP_OVERLAY_CONNECT;
3392 GNUNET_TESTBED_forward_operation_msg_ (peer->details.remote.slave->controller,
3393 operation_id, message,
3394 &forwarded_operation_reply_relay,
3396 fopc->timeout_task =
3397 GNUNET_SCHEDULER_add_delayed (TIMEOUT, &forwarded_operation_timeout,
3399 GNUNET_CONTAINER_DLL_insert_tail (fopcq_head, fopcq_tail, fopc);
3400 GNUNET_SERVER_receive_done (client, GNUNET_OK);
3404 peer2_controller = NULL;
3405 if ((p2 >= peer_list_size) || (NULL == peer_list[p2]))
3407 if ((peer2_host_id >= slave_list_size)
3408 || (NULL ==slave_list[peer2_host_id]))
3410 LOG (GNUNET_ERROR_TYPE_WARNING,
3411 "Configuration of peer2's controller missing for connecting peers"
3412 "%u and %u\n", p1, p2);
3413 GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
3416 peer2_controller = slave_list[peer2_host_id]->controller;
3417 if (NULL == peer2_controller)
3419 GNUNET_break (0); /* What's going on? */
3420 GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
3426 if (GNUNET_YES == peer_list[p2]->is_remote)
3427 peer2_controller = peer_list[p2]->details.remote.slave->controller;
3429 occ = GNUNET_malloc (sizeof (struct OverlayConnectContext));
3430 GNUNET_CONTAINER_DLL_insert_tail (occq_head, occq_tail, occ);
3431 GNUNET_SERVER_client_keep (client);
3432 occ->client = client;
3434 occ->other_peer_id = p2;
3435 occ->peer = peer_list[p1];
3436 occ->op_id = GNUNET_ntohll (msg->operation_id);
3437 occ->peer2_controller = peer2_controller;
3438 /* Get the identity of the second peer */
3439 if (NULL != occ->peer2_controller)
3441 struct GNUNET_TESTBED_PeerGetConfigurationMessage cmsg;
3444 htons (sizeof (struct GNUNET_TESTBED_PeerGetConfigurationMessage));
3445 cmsg.header.type = htons (GNUNET_MESSAGE_TYPE_TESTBED_GETPEERCONFIG);
3446 cmsg.peer_id = msg->peer2;
3447 cmsg.operation_id = msg->operation_id;
3449 GNUNET_TESTBED_forward_operation_msg_ (occ->peer2_controller,
3450 occ->op_id, &cmsg.header,
3451 &overlay_connect_get_config,
3454 GNUNET_strdup ("Timeout while getting peer identity of peer B\n");
3456 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply
3457 (GNUNET_TIME_UNIT_SECONDS, 30),
3458 &timeout_overlay_connect, occ);
3459 GNUNET_SERVER_receive_done (client, GNUNET_OK);
3462 GNUNET_TESTING_peer_get_identity (peer_list[occ->other_peer_id]->details.local.peer,
3463 &occ->other_peer_identity);
3464 /* Connect to the core of 1st peer and wait for the 2nd peer to connect */
3465 occ->emsg = GNUNET_strdup ("Timeout while connecting to CORE");
3466 occ->peer->reference_cnt++;
3468 GNUNET_CORE_connect (occ->peer->details.local.cfg, occ, &core_startup_cb,
3469 &overlay_connect_notify, NULL, NULL, GNUNET_NO, NULL,
3470 GNUNET_NO, no_handlers);
3471 if (NULL == occ->ch)
3473 GNUNET_SCHEDULER_add_now (&timeout_overlay_connect, occ);
3476 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply
3477 (GNUNET_TIME_UNIT_SECONDS, 30),
3478 &timeout_overlay_connect, occ);
3479 GNUNET_SERVER_receive_done (client, GNUNET_OK);
3484 * Function to cleanup RequestOverlayConnectContext and any associated tasks
3487 * @param rocc the RequestOverlayConnectContext
3490 cleanup_rocc (struct RequestOverlayConnectContext *rocc)
3492 if (GNUNET_SCHEDULER_NO_TASK != rocc->attempt_connect_task_id)
3493 GNUNET_SCHEDULER_cancel (rocc->attempt_connect_task_id);
3494 if (GNUNET_SCHEDULER_NO_TASK != rocc->timeout_rocc_task_id)
3495 GNUNET_SCHEDULER_cancel (rocc->timeout_rocc_task_id);
3496 GNUNET_TRANSPORT_disconnect (rocc->th);
3497 GNUNET_free_non_null (rocc->hello);
3498 GNUNET_CONTAINER_DLL_remove (roccq_head, roccq_tail, rocc);
3504 * Task to timeout rocc and cleanit up
3506 * @param cls the RequestOverlayConnectContext
3507 * @param tc the TaskContext from scheduler
3510 timeout_rocc_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
3512 struct RequestOverlayConnectContext *rocc = cls;
3514 rocc->timeout_rocc_task_id = GNUNET_SCHEDULER_NO_TASK;
3515 cleanup_rocc (rocc);
3520 * Function called to notify transport users that another
3521 * peer connected to us.
3523 * @param cls closure
3524 * @param new_peer the peer that connected
3525 * @param ats performance data
3526 * @param ats_count number of entries in ats (excluding 0-termination)
3529 transport_connect_notify (void *cls, const struct GNUNET_PeerIdentity *new_peer,
3530 const struct GNUNET_ATS_Information * ats,
3533 struct RequestOverlayConnectContext *rocc = cls;
3535 LOG_DEBUG ("Request Overlay connect notify\n");
3536 if (0 != memcmp (new_peer, &rocc->a_id, sizeof (struct GNUNET_PeerIdentity)))
3538 LOG_DEBUG ("Peer %4s connected\n", GNUNET_i2s (&rocc->a_id));
3539 cleanup_rocc (rocc);
3544 * Task to offer the HELLO message to the peer and ask it to connect to the peer
3545 * whose identity is in RequestOverlayConnectContext
3547 * @param cls the RequestOverlayConnectContext
3548 * @param tc the TaskContext from scheduler
3551 attempt_connect_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
3553 struct RequestOverlayConnectContext *rocc = cls;
3555 rocc->attempt_connect_task_id = GNUNET_SCHEDULER_NO_TASK;
3556 GNUNET_TRANSPORT_offer_hello (rocc->th, rocc->hello, NULL, NULL);
3557 GNUNET_TRANSPORT_try_connect (rocc->th, &rocc->a_id, NULL, NULL); /*FIXME TRY_CONNECT change */
3558 rocc->attempt_connect_task_id =
3559 GNUNET_SCHEDULER_add_delayed
3560 (GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_MILLISECONDS,
3561 100 + GNUNET_CRYPTO_random_u32
3562 (GNUNET_CRYPTO_QUALITY_WEAK, 500)),
3563 &attempt_connect_task, rocc);
3568 * Handler for GNUNET_MESSAGE_TYPE_TESTBED_REQUESTCONNECT messages
3571 * @param client identification of the client
3572 * @param message the actual message
3575 handle_overlay_request_connect (void *cls, struct GNUNET_SERVER_Client *client,
3576 const struct GNUNET_MessageHeader *message)
3578 const struct GNUNET_TESTBED_RequestConnectMessage *msg;
3579 struct RequestOverlayConnectContext *rocc;
3585 msize = ntohs (message->size);
3586 if (sizeof (struct GNUNET_TESTBED_RequestConnectMessage) >= msize)
3589 GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
3592 msg = (const struct GNUNET_TESTBED_RequestConnectMessage *) message;
3593 if ((NULL == msg->hello) ||
3594 (GNUNET_MESSAGE_TYPE_HELLO != ntohs (msg->hello->type)))
3597 GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
3600 hsize = ntohs (msg->hello->size);
3601 if ((sizeof (struct GNUNET_TESTBED_RequestConnectMessage) + hsize) != msize)
3604 GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
3607 peer_id = ntohl (msg->peer);
3608 if ((peer_id >= peer_list_size) || (NULL == (peer = peer_list[peer_id])))
3610 GNUNET_break_op (0);
3611 GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
3614 if (GNUNET_YES == peer->is_remote)
3616 struct GNUNET_MessageHeader *msg2;
3618 msg2 = GNUNET_copy_message (message);
3619 GNUNET_TESTBED_queue_message_ (peer->details.remote.slave->controller, msg2);
3620 GNUNET_SERVER_receive_done (client, GNUNET_OK);
3623 rocc = GNUNET_malloc (sizeof (struct RequestOverlayConnectContext));
3624 GNUNET_CONTAINER_DLL_insert_tail (roccq_head, roccq_tail, rocc);
3625 rocc->th = GNUNET_TRANSPORT_connect (peer->details.local.cfg, NULL, rocc,
3626 NULL, &transport_connect_notify, NULL);
3627 if (NULL == rocc->th)
3631 GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
3634 memcpy (&rocc->a_id, &msg->peer_identity,
3635 sizeof (struct GNUNET_PeerIdentity));
3636 rocc->hello = GNUNET_malloc (hsize);
3637 memcpy (rocc->hello, msg->hello, hsize);
3638 rocc->attempt_connect_task_id =
3639 GNUNET_SCHEDULER_add_now (&attempt_connect_task, rocc);
3640 rocc->timeout_rocc_task_id =
3641 GNUNET_SCHEDULER_add_delayed (TIMEOUT, &timeout_rocc_task, rocc);
3642 GNUNET_SERVER_receive_done (client, GNUNET_OK);
3647 * Handler for GNUNET_MESSAGE_TYPE_TESTBED_GETSLAVECONFIG messages
3650 * @param client identification of the client
3651 * @param message the actual message
3654 handle_slave_get_config (void *cls, struct GNUNET_SERVER_Client *client,
3655 const struct GNUNET_MessageHeader *message)
3657 struct GNUNET_TESTBED_SlaveGetConfigurationMessage *msg;
3658 struct Slave *slave;
3659 struct GNUNET_TESTBED_SlaveConfiguration *reply;
3663 size_t xconfig_size;
3668 msg = (struct GNUNET_TESTBED_SlaveGetConfigurationMessage *) message;
3669 slave_id = ntohl (msg->slave_id);
3670 op_id = GNUNET_ntohll (msg->operation_id);
3671 if ((slave_list_size <= slave_id) || (NULL == slave_list[slave_id]))
3673 /* FIXME: Add forwardings for this type of message here.. */
3674 send_operation_fail_msg (client, op_id, "Slave not found");
3675 GNUNET_SERVER_receive_done (client, GNUNET_OK);
3678 slave = slave_list[slave_id];
3679 if (NULL == slave->cfg)
3681 send_operation_fail_msg (client, op_id,
3682 "Configuration not found (slave not started by me)");
3683 GNUNET_SERVER_receive_done (client, GNUNET_OK);
3686 config = GNUNET_CONFIGURATION_serialize (slave->cfg, &config_size);
3687 xconfig_size = GNUNET_TESTBED_compress_config_ (config, config_size,
3689 GNUNET_free (config);
3690 reply_size = xconfig_size + sizeof (struct GNUNET_TESTBED_SlaveConfiguration);
3691 GNUNET_break (reply_size <= UINT16_MAX);
3692 GNUNET_break (config_size <= UINT16_MAX);
3693 reply = GNUNET_realloc (xconfig, reply_size);
3694 (void) memmove (&reply[1], reply, xconfig_size);
3695 reply->header.type = htons (GNUNET_MESSAGE_TYPE_TESTBED_SLAVECONFIG);
3696 reply->header.size = htons ((uint16_t) reply_size);
3697 reply->slave_id = msg->slave_id;
3698 reply->operation_id = msg->operation_id;
3699 reply->config_size = htons ((uint16_t) config_size);
3700 queue_message (client, &reply->header);
3701 GNUNET_SERVER_receive_done (client, GNUNET_OK);
3706 * Iterator over hash map entries.
3708 * @param cls closure
3709 * @param key current key code
3710 * @param value value in the hash map
3711 * @return GNUNET_YES if we should continue to
3716 ss_map_free_iterator (void *cls, const struct GNUNET_HashCode *key, void *value)
3718 struct SharedService *ss = value;
3720 GNUNET_assert (GNUNET_YES ==
3721 GNUNET_CONTAINER_multihashmap_remove (ss_map, key, value));
3722 GNUNET_free (ss->name);
3729 * Iterator for freeing hash map entries in a slave's reghost_map
3731 * @param cls handle to the slave
3732 * @param key current key code
3733 * @param value value in the hash map
3734 * @return GNUNET_YES if we should continue to
3739 reghost_free_iterator (void *cls,
3740 const struct GNUNET_HashCode * key,
3743 struct Slave *slave = cls;
3744 struct RegisteredHostContext *rhc = value;
3745 struct ForwardedOverlayConnectContext *focc;
3747 GNUNET_assert (GNUNET_YES ==
3748 GNUNET_CONTAINER_multihashmap_remove (slave->reghost_map,
3750 while (NULL != (focc = rhc->focc_dll_head))
3752 GNUNET_CONTAINER_DLL_remove (rhc->focc_dll_head,
3755 cleanup_focc (focc);
3757 if (NULL != rhc->sub_op)
3758 GNUNET_TESTBED_operation_done (rhc->sub_op);
3759 if (NULL != rhc->client)
3760 GNUNET_SERVER_client_drop (rhc->client);
3761 GNUNET_free (value);
3767 * Task to clean up and shutdown nicely
3770 * @param tc the TaskContext from scheduler
3773 shutdown_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
3775 struct LCFContextQueue *lcfq;
3776 struct OverlayConnectContext *occ;
3777 struct RequestOverlayConnectContext *rocc;
3778 struct ForwardedOperationContext *fopc;
3779 struct MessageQueue *mq_entry;
3782 shutdown_task_id = GNUNET_SCHEDULER_NO_TASK;
3783 LOG (GNUNET_ERROR_TYPE_DEBUG, "Shutting down testbed service\n");
3784 (void) GNUNET_CONTAINER_multihashmap_iterate (ss_map, &ss_map_free_iterator,
3786 GNUNET_CONTAINER_multihashmap_destroy (ss_map);
3787 /* cleanup any remaining forwarded operations */
3788 while (NULL != (fopc = fopcq_head))
3790 GNUNET_CONTAINER_DLL_remove (fopcq_head, fopcq_tail, fopc);
3791 GNUNET_TESTBED_forward_operation_msg_cancel_ (fopc->opc);
3792 if (GNUNET_SCHEDULER_NO_TASK != fopc->timeout_task)
3793 GNUNET_SCHEDULER_cancel (fopc->timeout_task);
3794 GNUNET_SERVER_client_drop (fopc->client);
3797 case OP_PEER_CREATE:
3798 GNUNET_free (fopc->cls);
3802 case OP_PEER_DESTROY:
3804 case OP_OVERLAY_CONNECT:
3805 case OP_LINK_CONTROLLERS:
3806 case OP_GET_SLAVE_CONFIG:
3813 if (NULL != lcfq_head)
3815 if (GNUNET_SCHEDULER_NO_TASK != lcf_proc_task_id)
3817 GNUNET_SCHEDULER_cancel (lcf_proc_task_id);
3818 lcf_proc_task_id = GNUNET_SCHEDULER_NO_TASK;
3821 GNUNET_assert (GNUNET_SCHEDULER_NO_TASK == lcf_proc_task_id);
3822 for (lcfq = lcfq_head; NULL != lcfq; lcfq = lcfq_head)
3824 GNUNET_free (lcfq->lcf->msg);
3825 GNUNET_free (lcfq->lcf);
3826 GNUNET_CONTAINER_DLL_remove (lcfq_head, lcfq_tail, lcfq);
3829 while (NULL != (occ = occq_head))
3831 while (NULL != (rocc = roccq_head))
3832 cleanup_rocc (rocc);
3833 /* Clear peer list */
3834 for (id = 0; id < peer_list_size; id++)
3835 if (NULL != peer_list[id])
3837 /* If destroy flag is set it means that this peer should have been
3838 destroyed by a context which we destroy before */
3839 GNUNET_break (GNUNET_NO == peer_list[id]->destroy_flag);
3840 /* counter should be zero as we free all contexts before */
3841 GNUNET_break (0 == peer_list[id]->reference_cnt);
3842 if (GNUNET_NO == peer_list[id]->is_remote)
3844 if (GNUNET_YES == peer_list[id]->details.local.is_running)
3845 GNUNET_TESTING_peer_stop (peer_list[id]->details.local.peer);
3846 GNUNET_TESTING_peer_destroy (peer_list[id]->details.local.peer);
3847 GNUNET_CONFIGURATION_destroy (peer_list[id]->details.local.cfg);
3849 GNUNET_free (peer_list[id]);
3851 GNUNET_free_non_null (peer_list);
3852 /* Clear host list */
3853 for (id = 0; id < host_list_size; id++)
3854 if (NULL != host_list[id])
3855 GNUNET_TESTBED_host_destroy (host_list[id]);
3856 GNUNET_free_non_null (host_list);
3857 /* Clear route list */
3858 for (id = 0; id < route_list_size; id++)
3859 if (NULL != route_list[id])
3860 GNUNET_free (route_list[id]);
3861 GNUNET_free_non_null (route_list);
3862 /* Clear slave_list */
3863 for (id = 0; id < slave_list_size; id++)
3864 if (NULL != slave_list[id])
3866 struct HostRegistration *hr_entry;
3868 while (NULL != (hr_entry = slave_list[id]->hr_dll_head))
3870 GNUNET_CONTAINER_DLL_remove (slave_list[id]->hr_dll_head,
3871 slave_list[id]->hr_dll_tail,
3873 GNUNET_free (hr_entry);
3875 if (NULL != slave_list[id]->rhandle)
3876 GNUNET_TESTBED_cancel_registration (slave_list[id]->rhandle);
3877 (void) GNUNET_CONTAINER_multihashmap_iterate (slave_list[id]->reghost_map,
3878 reghost_free_iterator,
3880 GNUNET_CONTAINER_multihashmap_destroy (slave_list[id]->reghost_map);
3881 if (NULL != slave_list[id]->cfg)
3882 GNUNET_CONFIGURATION_destroy (slave_list[id]->cfg);
3883 if (NULL != slave_list[id]->controller)
3884 GNUNET_TESTBED_controller_disconnect (slave_list[id]->controller);
3885 if (NULL != slave_list[id]->controller_proc)
3886 GNUNET_TESTBED_controller_stop (slave_list[id]->controller_proc);
3887 GNUNET_free (slave_list[id]);
3889 GNUNET_free_non_null (slave_list);
3890 if (NULL != master_context)
3892 GNUNET_free_non_null (master_context->master_ip);
3893 if (NULL != master_context->system)
3894 GNUNET_TESTING_system_destroy (master_context->system, GNUNET_YES);
3895 GNUNET_SERVER_client_drop (master_context->client);
3896 GNUNET_free (master_context);
3897 master_context = NULL;
3899 if (NULL != transmit_handle)
3900 GNUNET_SERVER_notify_transmit_ready_cancel (transmit_handle);
3901 while (NULL != (mq_entry = mq_head))
3903 GNUNET_free (mq_entry->msg);
3904 GNUNET_SERVER_client_drop (mq_entry->client);
3905 GNUNET_CONTAINER_DLL_remove (mq_head, mq_tail, mq_entry);
3906 GNUNET_free (mq_entry);
3908 GNUNET_free_non_null (hostname);
3909 GNUNET_CONFIGURATION_destroy (our_config);
3914 * Callback for client disconnect
3917 * @param client the client which has disconnected
3920 client_disconnect_cb (void *cls, struct GNUNET_SERVER_Client *client)
3922 if (NULL == master_context)
3924 if (client == master_context->client)
3926 LOG (GNUNET_ERROR_TYPE_DEBUG, "Master client disconnected\n");
3927 /* should not be needed as we're terminated by failure to read
3928 * from stdin, but if stdin fails for some reason, this shouldn't
3929 * hurt for now --- might need to revise this later if we ever
3930 * decide that master connections might be temporarily down
3931 * for some reason */
3932 //GNUNET_SCHEDULER_shutdown ();
3940 * @param cls closure
3941 * @param server the initialized server
3942 * @param cfg configuration to use
3945 testbed_run (void *cls, struct GNUNET_SERVER_Handle *server,
3946 const struct GNUNET_CONFIGURATION_Handle *cfg)
3948 static const struct GNUNET_SERVER_MessageHandler message_handlers[] = {
3949 {&handle_init, NULL, GNUNET_MESSAGE_TYPE_TESTBED_INIT, 0},
3950 {&handle_add_host, NULL, GNUNET_MESSAGE_TYPE_TESTBED_ADDHOST, 0},
3951 {&handle_configure_shared_service, NULL,
3952 GNUNET_MESSAGE_TYPE_TESTBED_SERVICESHARE, 0},
3953 {&handle_link_controllers, NULL,
3954 GNUNET_MESSAGE_TYPE_TESTBED_LCONTROLLERS, 0},
3955 {&handle_peer_create, NULL, GNUNET_MESSAGE_TYPE_TESTBED_CREATEPEER, 0},
3956 {&handle_peer_destroy, NULL, GNUNET_MESSAGE_TYPE_TESTBED_DESTROYPEER,
3957 sizeof (struct GNUNET_TESTBED_PeerDestroyMessage)},
3958 {&handle_peer_start, NULL, GNUNET_MESSAGE_TYPE_TESTBED_STARTPEER,
3959 sizeof (struct GNUNET_TESTBED_PeerStartMessage)},
3960 {&handle_peer_stop, NULL, GNUNET_MESSAGE_TYPE_TESTBED_STOPPEER,
3961 sizeof (struct GNUNET_TESTBED_PeerStopMessage)},
3962 {&handle_peer_get_config, NULL, GNUNET_MESSAGE_TYPE_TESTBED_GETPEERCONFIG,
3963 sizeof (struct GNUNET_TESTBED_PeerGetConfigurationMessage)},
3964 {&handle_overlay_connect, NULL, GNUNET_MESSAGE_TYPE_TESTBED_OLCONNECT,
3965 sizeof (struct GNUNET_TESTBED_OverlayConnectMessage)},
3966 {&handle_overlay_request_connect, NULL, GNUNET_MESSAGE_TYPE_TESTBED_REQUESTCONNECT,
3968 {handle_slave_get_config, NULL, GNUNET_MESSAGE_TYPE_TESTBED_GETSLAVECONFIG,
3969 sizeof (struct GNUNET_TESTBED_SlaveGetConfigurationMessage)},
3973 GNUNET_assert (GNUNET_OK == GNUNET_CONFIGURATION_get_value_string
3974 (cfg, "testbed", "HOSTNAME", &hostname));
3975 our_config = GNUNET_CONFIGURATION_dup (cfg);
3976 GNUNET_SERVER_add_handlers (server, message_handlers);
3977 GNUNET_SERVER_disconnect_notify (server, &client_disconnect_cb, NULL);
3978 ss_map = GNUNET_CONTAINER_multihashmap_create (5, GNUNET_NO);
3980 GNUNET_SCHEDULER_add_delayed_with_priority (GNUNET_TIME_UNIT_FOREVER_REL,
3981 GNUNET_SCHEDULER_PRIORITY_IDLE,
3982 &shutdown_task, NULL);
3983 LOG_DEBUG ("Testbed startup complete\n");
3984 event_mask = 1LL << GNUNET_TESTBED_ET_OPERATION_FINISHED;
3989 * The starting point of execution
3992 main (int argc, char *const *argv)
3994 //sleep (15); /* Debugging */
3995 return (GNUNET_OK ==
3996 GNUNET_SERVICE_run (argc, argv, "testbed", GNUNET_SERVICE_OPTION_NONE,
3997 &testbed_run, NULL)) ? 0 : 1;
4000 /* end of gnunet-service-testbed.c */