- * Callback to be called when forwarded link controllers operation is
- * successfull. We have to relay the reply msg back to the client
- *
- * @param cls the LCFContext
- * @param msg the message to relay
- */
-static void
-lcf_forwarded_operation_reply_relay (void *cls,
- const struct GNUNET_MessageHeader *msg)
-{
- struct LCFContext *lcf = cls;
-
- GNUNET_assert (NULL != lcf->fopc);
- forwarded_operation_reply_relay (lcf->fopc, msg);
- lcf->fopc = NULL;
- GNUNET_assert (GNUNET_SCHEDULER_NO_TASK == lcf_proc_task_id);
- lcf_proc_task_id = GNUNET_SCHEDULER_add_now (&lcf_proc_task, lcf);
-}
-
-
-/**
- * Task to free resources when forwarded link controllers has been timedout
- *
- * @param cls the LCFContext
- * @param tc the task context from scheduler
- */
-static void
-lcf_forwarded_operation_timeout (void *cls,
- const struct GNUNET_SCHEDULER_TaskContext *tc)
-{
- struct LCFContext *lcf = cls;
-
- GNUNET_assert (NULL != lcf->fopc);
- lcf->fopc->timeout_task = GNUNET_SCHEDULER_NO_TASK;
- forwarded_operation_timeout (lcf->fopc, tc);
- lcf->fopc = NULL;
- GNUNET_assert (GNUNET_SCHEDULER_NO_TASK == lcf_proc_task_id);
- lcf_proc_task_id = GNUNET_SCHEDULER_add_now (&lcf_proc_task, lcf);
-}
-
-
-/**
- * The Link Controller forwarding task
- *
- * @param cls the LCFContext
- * @param tc the Task context from scheduler
- */
-static void
-lcf_proc_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
-{
- struct LCFContext *lcf = cls;
- struct LCFContextQueue *lcfq;
-
- lcf_proc_task_id = GNUNET_SCHEDULER_NO_TASK;
- switch (lcf->state)
- {
- case INIT:
- if (GNUNET_NO ==
- GNUNET_TESTBED_is_host_registered_ (host_list[lcf->delegated_host_id],
- lcf->gateway->controller))
- {
- queue_host_registration (lcf->gateway,
- lcf_proc_cc, lcf,
- host_list[lcf->delegated_host_id]);
- }
- else
- {
- lcf->state = DELEGATED_HOST_REGISTERED;
- lcf_proc_task_id = GNUNET_SCHEDULER_add_now (&lcf_proc_task, lcf);
- }
- break;
- case DELEGATED_HOST_REGISTERED:
- if (GNUNET_NO ==
- GNUNET_TESTBED_is_host_registered_ (host_list[lcf->slave_host_id],
- lcf->gateway->controller))
- {
- queue_host_registration (lcf->gateway,
- lcf_proc_cc, lcf,
- host_list[lcf->slave_host_id]);
- }
- else
- {
- lcf->state = SLAVE_HOST_REGISTERED;
- lcf_proc_task_id = GNUNET_SCHEDULER_add_now (&lcf_proc_task, lcf);
- }
- break;
- case SLAVE_HOST_REGISTERED:
- lcf->fopc = GNUNET_malloc (sizeof (struct ForwardedOperationContext));
- lcf->fopc->client = lcf->client;
- lcf->fopc->operation_id = lcf->operation_id;
- lcf->fopc->type = OP_LINK_CONTROLLERS;
- lcf->fopc->opc =
- GNUNET_TESTBED_forward_operation_msg_ (lcf->gateway->controller,
- lcf->operation_id,
- &lcf->msg->header,
- &lcf_forwarded_operation_reply_relay,
- lcf);
- lcf->fopc->timeout_task =
- GNUNET_SCHEDULER_add_delayed (TIMEOUT, &lcf_forwarded_operation_timeout,
- lcf);
- GNUNET_CONTAINER_DLL_insert_tail (fopcq_head, fopcq_tail, lcf->fopc);
- lcf->state = FINISHED;
- break;
- case FINISHED:
- lcfq = lcfq_head;
- GNUNET_assert (lcfq->lcf == lcf);
- GNUNET_free (lcf->msg);
- GNUNET_free (lcf);
- GNUNET_CONTAINER_DLL_remove (lcfq_head, lcfq_tail, lcfq);
- GNUNET_free (lcfq);
- if (NULL != lcfq_head)
- lcf_proc_task_id =
- GNUNET_SCHEDULER_add_now (&lcf_proc_task, lcfq_head->lcf);
- }
-}
-
-
-/**
- * Cleans up ForwardedOverlayConnectContext
- *
- * @param focc the ForwardedOverlayConnectContext to cleanup
- */
-static void
-cleanup_focc (struct ForwardedOverlayConnectContext *focc)
-{
- GNUNET_free_non_null (focc->orig_msg);
- GNUNET_free (focc);
-}
-
-
-/**
- * Processes a forwarded overlay connect context in the queue of the given RegisteredHostContext
- *
- * @param rhc the RegisteredHostContext
- */
-static void
-process_next_focc (struct RegisteredHostContext *rhc);
-
-
-/**
- * Timeout task for cancelling a forwarded overlay connect connect
- *
- * @param cls the ForwardedOverlayConnectContext
- * @param tc the task context from the scheduler
- */
-static void
-forwarded_overlay_connect_timeout (void *cls,
- const struct GNUNET_SCHEDULER_TaskContext
- *tc)
-{
- struct ForwardedOperationContext *fopc = cls;
- struct RegisteredHostContext *rhc;
- struct ForwardedOverlayConnectContext *focc;
-
- rhc = fopc->cls;
- focc = rhc->focc_dll_head;
- GNUNET_CONTAINER_DLL_remove (rhc->focc_dll_head, rhc->focc_dll_tail, focc);
- cleanup_focc (focc);
- LOG_DEBUG ("Overlay linking between peers %u and %u failed\n",
- focc->peer1, focc->peer2);
- forwarded_operation_timeout (cls, tc);
- if (NULL != rhc->focc_dll_head)
- process_next_focc (rhc);
-}
-
-
-/**
- * Callback to be called when forwarded overlay connection operation has a reply
- * from the sub-controller successfull. We have to relay the reply msg back to
- * the client
- *
- * @param cls ForwardedOperationContext
- * @param msg the peer create success message
- */
-static void
-forwarded_overlay_connect_listener (void *cls,
- const struct GNUNET_MessageHeader *msg)
-{
- struct ForwardedOperationContext *fopc = cls;
- struct RegisteredHostContext *rhc;
- struct ForwardedOverlayConnectContext *focc;
-
- rhc = fopc->cls;
- forwarded_operation_reply_relay (cls, msg);
- focc = rhc->focc_dll_head;
- GNUNET_CONTAINER_DLL_remove (rhc->focc_dll_head, rhc->focc_dll_tail, focc);
- cleanup_focc (focc);
- if (NULL != rhc->focc_dll_head)
- process_next_focc (rhc);
-}
-
-
-/**
- * Processes a forwarded overlay connect context in the queue of the given RegisteredHostContext
- *
- * @param rhc the RegisteredHostContext
- */
-static void
-process_next_focc (struct RegisteredHostContext *rhc)
-{
- struct ForwardedOperationContext *fopc;
- struct ForwardedOverlayConnectContext *focc;
-
- focc = rhc->focc_dll_head;
- GNUNET_assert (NULL != focc);
- GNUNET_assert (RHC_OL_CONNECT == rhc->state);
- fopc = GNUNET_malloc (sizeof (struct ForwardedOperationContext));
- GNUNET_SERVER_client_keep (rhc->client);
- fopc->client = rhc->client;
- fopc->operation_id = focc->operation_id;
- fopc->cls = rhc;
- fopc->type = OP_OVERLAY_CONNECT;
- fopc->opc =
- GNUNET_TESTBED_forward_operation_msg_ (rhc->gateway->controller,
- focc->operation_id, focc->orig_msg,
- &forwarded_overlay_connect_listener,
- fopc);
- GNUNET_free (focc->orig_msg);
- focc->orig_msg = NULL;
- fopc->timeout_task =
- GNUNET_SCHEDULER_add_delayed (TIMEOUT, &forwarded_overlay_connect_timeout,
- fopc);
- GNUNET_CONTAINER_DLL_insert_tail (fopcq_head, fopcq_tail, fopc);
-}
-
-
-/**
- * Callback for event from slave controllers
- *
- * @param cls struct Slave *
- * @param event information about the event
- */
-static void
-slave_event_callback (void *cls,
- const struct GNUNET_TESTBED_EventInformation *event)
-{
- struct RegisteredHostContext *rhc;
- struct GNUNET_CONFIGURATION_Handle *cfg;
- struct GNUNET_TESTBED_Operation *old_op;
-
- /* We currently only get here when working on RegisteredHostContexts */
- GNUNET_assert (GNUNET_TESTBED_ET_OPERATION_FINISHED == event->type);
- rhc = event->details.operation_finished.op_cls;
- GNUNET_assert (rhc->sub_op == event->details.operation_finished.operation);
- switch (rhc->state)
- {
- case RHC_GET_CFG:
- cfg = event->details.operation_finished.generic;
- old_op = rhc->sub_op;
- rhc->state = RHC_LINK;
- rhc->sub_op =
- GNUNET_TESTBED_controller_link (rhc,
- rhc->gateway->controller,
- rhc->reg_host,
- rhc->host,
- cfg,
- GNUNET_NO);
- GNUNET_TESTBED_operation_done (old_op);
- break;
- case RHC_LINK:
- LOG_DEBUG ("OL: Linking controllers successfull\n");
- GNUNET_TESTBED_operation_done (rhc->sub_op);
- rhc->sub_op = NULL;
- rhc->state = RHC_OL_CONNECT;
- process_next_focc (rhc);
- break;
- default:
- GNUNET_assert (0);
- }
-}
-
-
-/**
- * Callback to signal successfull startup of the controller process
- *
- * @param cls the handle to the slave whose status is to be found here
- * @param cfg the configuration with which the controller has been started;
- * NULL if status is not GNUNET_OK
- * @param status GNUNET_OK if the startup is successfull; GNUNET_SYSERR if not,
- * GNUNET_TESTBED_controller_stop() shouldn't be called in this case
- */
-static void
-slave_status_callback (void *cls, const struct GNUNET_CONFIGURATION_Handle *cfg,
- int status)
-{
- struct Slave *slave = cls;
- struct LinkControllersContext *lcc;
-
- lcc = slave->lcc;
- if (GNUNET_SYSERR == status)
- {
- slave->controller_proc = NULL;
- slave_list[slave->host_id] = NULL;
- if (NULL != slave->cfg)
- GNUNET_CONFIGURATION_destroy (slave->cfg);
- GNUNET_free (slave);
- slave = NULL;
- LOG (GNUNET_ERROR_TYPE_WARNING, "Unexpected slave shutdown\n");
- GNUNET_SCHEDULER_shutdown (); /* We too shutdown */
- goto clean_lcc;
- }
- slave->controller =
- GNUNET_TESTBED_controller_connect (cfg, host_list[slave->host_id],
- event_mask,
- &slave_event_callback, slave);
- if (NULL != slave->controller)
- {
- send_operation_success_msg (lcc->client, lcc->operation_id);
- slave->cfg = GNUNET_CONFIGURATION_dup (cfg);
- }
- else
- {
- send_operation_fail_msg (lcc->client, lcc->operation_id,
- "Could not connect to delegated controller");
- GNUNET_TESTBED_controller_stop (slave->controller_proc);
- slave_list[slave->host_id] = NULL;
- GNUNET_free (slave);
- slave = NULL;
- }
-
- clean_lcc:
- if (NULL != lcc)
- {
- if (NULL != lcc->client)
- {
- GNUNET_SERVER_receive_done (lcc->client, GNUNET_OK);
- GNUNET_SERVER_client_drop (lcc->client);
- lcc->client = NULL;
- }
- GNUNET_free (lcc);
- }
- if (NULL != slave)
- slave->lcc = NULL;
-}
-
-
-/**
- * Message handler for GNUNET_MESSAGE_TYPE_TESTBED_INIT messages
- *
- * @param cls NULL
- * @param client identification of the client
- * @param message the actual message
- */
-static void
-handle_init (void *cls, struct GNUNET_SERVER_Client *client,
- const struct GNUNET_MessageHeader *message)
-{
- const struct GNUNET_TESTBED_InitMessage *msg;
- struct GNUNET_TESTBED_Host *host;
- const char *controller_hostname;
- uint16_t msize;
-
- if (NULL != master_context)
- {
- LOG_DEBUG ("We are being connected to laterally\n");
- GNUNET_SERVER_receive_done (client, GNUNET_OK);
- return;
- }
- msg = (const struct GNUNET_TESTBED_InitMessage *) message;
- msize = ntohs (message->size);
- if (msize <= sizeof (struct GNUNET_TESTBED_InitMessage))
- {
- GNUNET_break (0);
- GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
- return;
- }
- msize -= sizeof (struct GNUNET_TESTBED_InitMessage);
- controller_hostname = (const char *) &msg[1];
- if ('\0' != controller_hostname[msize - 1])
- {
- GNUNET_break (0);
- GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
- return;
- }
- master_context = GNUNET_malloc (sizeof (struct Context));
- GNUNET_SERVER_client_keep (client);
- master_context->client = client;
- master_context->host_id = ntohl (msg->host_id);
- master_context->master_ip = GNUNET_strdup (controller_hostname);
- LOG_DEBUG ("Our IP: %s\n", master_context->master_ip);
- master_context->system =
- GNUNET_TESTING_system_create ("testbed", master_context->master_ip, hostname);
- host =
- GNUNET_TESTBED_host_create_with_id (master_context->host_id,
- master_context->master_ip,
- NULL,
- 0);
- host_list_add (host);
- LOG_DEBUG ("Created master context with host ID: %u\n",
- master_context->host_id);
- GNUNET_SERVER_receive_done (client, GNUNET_OK);
-}
-
-
-/**
- * Message handler for GNUNET_MESSAGE_TYPE_TESTBED_ADDHOST messages
- *
- * @param cls NULL
- * @param client identification of the client
- * @param message the actual message
- */
-static void
-handle_add_host (void *cls, struct GNUNET_SERVER_Client *client,
- const struct GNUNET_MessageHeader *message)
-{
- struct GNUNET_TESTBED_Host *host;
- const struct GNUNET_TESTBED_AddHostMessage *msg;
- struct GNUNET_TESTBED_HostConfirmedMessage *reply;
- char *username;
- char *hostname;
- char *emsg;
- uint32_t host_id;
- uint16_t username_length;
- uint16_t hostname_length;
- uint16_t reply_size;
- uint16_t msize;
-
- msg = (const struct GNUNET_TESTBED_AddHostMessage *) message;
- msize = ntohs (msg->header.size);
- username = (char *) &msg[1];
- username_length = ntohs (msg->user_name_length);
- if (0 != username_length)
- username_length++;
- /* msg must contain hostname */
- GNUNET_assert (msize > (sizeof (struct GNUNET_TESTBED_AddHostMessage) +
- username_length + 1));
- if (0 != username_length)
- GNUNET_assert ('\0' == username[username_length - 1]);
- hostname = username + username_length;
- hostname_length =
- msize - (sizeof (struct GNUNET_TESTBED_AddHostMessage) + username_length);
- GNUNET_assert ('\0' == hostname[hostname_length - 1]);
- GNUNET_assert (strlen (hostname) == hostname_length - 1);
- host_id = ntohl (msg->host_id);
- LOG_DEBUG ("Received ADDHOST %u message\n", host_id);
- LOG_DEBUG ("-------host id: %u\n", host_id);
- LOG_DEBUG ("-------hostname: %s\n", hostname);
- if (0 != username_length)
- LOG_DEBUG ("-------username: %s\n", username);
- else
- {
- LOG_DEBUG ("-------username: NULL\n");
- username = NULL;
- }
- LOG_DEBUG ("-------ssh port: %u\n", ntohs (msg->ssh_port));
- host =
- GNUNET_TESTBED_host_create_with_id (host_id, hostname, username,
- ntohs (msg->ssh_port));
- GNUNET_assert (NULL != host);
- reply_size = sizeof (struct GNUNET_TESTBED_HostConfirmedMessage);
- if (GNUNET_OK != host_list_add (host))
- {
- /* We are unable to add a host */
- emsg = "A host exists with given host-id";
- LOG_DEBUG ("%s: %u", emsg, host_id);
- GNUNET_TESTBED_host_destroy (host);
- reply_size += strlen (emsg) + 1;
- reply = GNUNET_malloc (reply_size);
- memcpy (&reply[1], emsg, strlen (emsg) + 1);
- }
- else
- {
- LOG_DEBUG ("Added host %u at %u\n",
- host_id, master_context->host_id);
- reply = GNUNET_malloc (reply_size);
- }
- reply->header.type = htons (GNUNET_MESSAGE_TYPE_TESTBED_ADDHOSTCONFIRM);
- reply->header.size = htons (reply_size);
- reply->host_id = htonl (host_id);
- queue_message (client, &reply->header);
- GNUNET_SERVER_receive_done (client, GNUNET_OK);
-}
-
-
-/**
- * Iterator over hash map entries.
- *
- * @param cls closure
- * @param key current key code
- * @param value value in the hash map
- * @return GNUNET_YES if we should continue to
- * iterate,
- * GNUNET_NO if not.
- */
-int
-ss_exists_iterator (void *cls, const struct GNUNET_HashCode *key, void *value)
-{
- struct SharedService *queried_ss = cls;
- struct SharedService *ss = value;
-
- if (0 == strcmp (ss->name, queried_ss->name))
- return GNUNET_NO;
- else
- return GNUNET_YES;
-}
-
-
-/**
- * Message handler for GNUNET_MESSAGE_TYPE_TESTBED_ADDHOST messages
- *
- * @param cls NULL
- * @param client identification of the client
- * @param message the actual message
- */
-static void
-handle_configure_shared_service (void *cls, struct GNUNET_SERVER_Client *client,
- const struct GNUNET_MessageHeader *message)
-{
- const struct GNUNET_TESTBED_ConfigureSharedServiceMessage *msg;
- struct SharedService *ss;
- char *service_name;
- struct GNUNET_HashCode hash;
- uint16_t msg_size;
- uint16_t service_name_size;
-
- msg = (const struct GNUNET_TESTBED_ConfigureSharedServiceMessage *) message;
- msg_size = ntohs (message->size);
- if (msg_size <= sizeof (struct GNUNET_TESTBED_ConfigureSharedServiceMessage))
- {
- GNUNET_break (0);
- GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
- return;
- }
- service_name_size =
- msg_size - sizeof (struct GNUNET_TESTBED_ConfigureSharedServiceMessage);
- service_name = (char *) &msg[1];
- if ('\0' != service_name[service_name_size - 1])
- {
- GNUNET_break (0);
- GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
- return;
- }
- LOG_DEBUG ("Received service sharing request for %s, with %d peers\n",
- service_name, ntohl (msg->num_peers));
- if (ntohl (msg->host_id) != master_context->host_id)
- {
- route_message (ntohl (msg->host_id), message);
- GNUNET_SERVER_receive_done (client, GNUNET_OK);
- return;
- }
- GNUNET_SERVER_receive_done (client, GNUNET_OK);
- ss = GNUNET_malloc (sizeof (struct SharedService));
- ss->name = strdup (service_name);
- ss->num_shared = ntohl (msg->num_peers);
- GNUNET_CRYPTO_hash (ss->name, service_name_size, &hash);
- if (GNUNET_SYSERR ==
- GNUNET_CONTAINER_multihashmap_get_multiple (ss_map, &hash,
- &ss_exists_iterator, ss))
- {
- LOG (GNUNET_ERROR_TYPE_WARNING,
- "Service %s already configured as a shared service. "
- "Ignoring service sharing request \n", ss->name);
- GNUNET_free (ss->name);
- GNUNET_free (ss);
- return;
- }
- GNUNET_CONTAINER_multihashmap_put (ss_map, &hash, ss,
- GNUNET_CONTAINER_MULTIHASHMAPOPTION_MULTIPLE);
-}
-
-
-/**
- * Message handler for GNUNET_MESSAGE_TYPE_TESTBED_LCONTROLLERS message
- *
- * @param cls NULL
- * @param client identification of the client
- * @param message the actual message
- */
-static void
-handle_link_controllers (void *cls, struct GNUNET_SERVER_Client *client,
- const struct GNUNET_MessageHeader *message)
-{
- const struct GNUNET_TESTBED_ControllerLinkMessage *msg;
- struct GNUNET_CONFIGURATION_Handle *cfg;
- struct LCFContextQueue *lcfq;
- struct Route *route;
- struct Route *new_route;
- char *config;
- uLongf dest_size;
- size_t config_size;
- uint32_t delegated_host_id;
- uint32_t slave_host_id;
- uint16_t msize;
-
- if (NULL == master_context)
- {
- GNUNET_break (0);
- GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
- return;
- }
- msize = ntohs (message->size);
- if (sizeof (struct GNUNET_TESTBED_ControllerLinkMessage) >= msize)
- {
- GNUNET_break (0);
- GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
- return;
- }
- msg = (const struct GNUNET_TESTBED_ControllerLinkMessage *) message;
- delegated_host_id = ntohl (msg->delegated_host_id);
- if (delegated_host_id == master_context->host_id)
- {
- GNUNET_break (0);
- LOG (GNUNET_ERROR_TYPE_WARNING, "Trying to link ourselves\n");
- GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
- return;
- }
- if ((delegated_host_id >= host_list_size) ||
- (NULL == host_list[delegated_host_id]))
- {
- LOG (GNUNET_ERROR_TYPE_WARNING,
- "Delegated host %u not registered with us\n", delegated_host_id);
- GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
- return;
- }
- slave_host_id = ntohl (msg->slave_host_id);
- if ((slave_host_id >= host_list_size) || (NULL == host_list[slave_host_id]))
- {
- LOG (GNUNET_ERROR_TYPE_WARNING, "Slave host %u not registered with us\n",
- slave_host_id);
- GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
- return;
- }
- if (slave_host_id == delegated_host_id)
- {
- LOG (GNUNET_ERROR_TYPE_WARNING, "Slave and delegated host are same\n");
- GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
- return;
- }
-
- if (slave_host_id == master_context->host_id) /* Link from us */
- {
- struct Slave *slave;
- struct LinkControllersContext *lcc;
-
- msize -= sizeof (struct GNUNET_TESTBED_ControllerLinkMessage);
- config_size = ntohs (msg->config_size);
- if ((delegated_host_id < slave_list_size) && (NULL != slave_list[delegated_host_id])) /* We have already added */
- {
- LOG (GNUNET_ERROR_TYPE_WARNING, "Host %u already connected\n",
- delegated_host_id);
- GNUNET_SERVER_receive_done (client, GNUNET_OK);
- return;
- }
- config = GNUNET_malloc (config_size);
- dest_size = (uLongf) config_size;
- if (Z_OK !=
- uncompress ((Bytef *) config, &dest_size, (const Bytef *) &msg[1],
- (uLong) msize))
- {
- GNUNET_break (0); /* Compression error */
- GNUNET_free (config);
- GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
- return;
- }
- if (config_size != dest_size)
- {
- LOG (GNUNET_ERROR_TYPE_WARNING, "Uncompressed config size mismatch\n");
- GNUNET_free (config);
- GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
- return;
- }
- cfg = GNUNET_CONFIGURATION_create (); /* Free here or in lcfcontext */
- if (GNUNET_OK !=
- GNUNET_CONFIGURATION_deserialize (cfg, config, config_size, GNUNET_NO))
- {
- GNUNET_break (0); /* Configuration parsing error */
- GNUNET_free (config);
- GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
- return;
- }
- GNUNET_free (config);
- if ((delegated_host_id < slave_list_size) &&
- (NULL != slave_list[delegated_host_id]))
- {
- GNUNET_break (0); /* Configuration parsing error */
- GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
- return;
- }
- slave = GNUNET_malloc (sizeof (struct Slave));
- slave->host_id = delegated_host_id;
- slave->reghost_map = GNUNET_CONTAINER_multihashmap_create (100, GNUNET_NO);
- slave_list_add (slave);
- if (1 != msg->is_subordinate)
- {
- slave->controller =
- GNUNET_TESTBED_controller_connect (cfg, host_list[slave->host_id],
- event_mask,
- &slave_event_callback, slave);
- slave->cfg = cfg;
- if (NULL != slave->controller)
- send_operation_success_msg (client, GNUNET_ntohll (msg->operation_id));
- else
- send_operation_fail_msg (client, GNUNET_ntohll (msg->operation_id),
- "Could not connect to delegated controller");
- GNUNET_SERVER_receive_done (client, GNUNET_OK);
- return;
- }
- lcc = GNUNET_malloc (sizeof (struct LinkControllersContext));
- lcc->operation_id = GNUNET_ntohll (msg->operation_id);
- GNUNET_SERVER_client_keep (client);
- lcc->client = client;
- slave->lcc = lcc;
- slave->controller_proc =
- GNUNET_TESTBED_controller_start (master_context->master_ip,
- host_list[slave->host_id], cfg,
- &slave_status_callback, slave);
- GNUNET_CONFIGURATION_destroy (cfg);
- new_route = GNUNET_malloc (sizeof (struct Route));
- new_route->dest = delegated_host_id;
- new_route->thru = master_context->host_id;
- route_list_add (new_route);
- return;
- }
-
- /* Route the request */
- if (slave_host_id >= route_list_size)
- {
- LOG (GNUNET_ERROR_TYPE_WARNING, "No route towards slave host");
- GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
- return;
- }
- lcfq = GNUNET_malloc (sizeof (struct LCFContextQueue));
- lcfq->lcf = GNUNET_malloc (sizeof (struct LCFContext));
- lcfq->lcf->delegated_host_id = delegated_host_id;
- lcfq->lcf->slave_host_id = slave_host_id;
- route = find_dest_route (slave_host_id);
- GNUNET_assert (NULL != route); /* because we add routes carefully */
- GNUNET_assert (route->dest < slave_list_size);
- GNUNET_assert (NULL != slave_list[route->dest]);
- lcfq->lcf->state = INIT;
- lcfq->lcf->operation_id = GNUNET_ntohll (msg->operation_id);
- lcfq->lcf->gateway = slave_list[route->dest];
- lcfq->lcf->msg = GNUNET_malloc (msize);
- (void) memcpy (lcfq->lcf->msg, msg, msize);
- GNUNET_SERVER_client_keep (client);
- lcfq->lcf->client = client;
- if (NULL == lcfq_head)
- {
- GNUNET_assert (GNUNET_SCHEDULER_NO_TASK == lcf_proc_task_id);
- GNUNET_CONTAINER_DLL_insert_tail (lcfq_head, lcfq_tail, lcfq);
- lcf_proc_task_id = GNUNET_SCHEDULER_add_now (&lcf_proc_task, lcfq->lcf);
- }
- else
- GNUNET_CONTAINER_DLL_insert_tail (lcfq_head, lcfq_tail, lcfq);
- /* FIXME: Adding a new route should happen after the controllers are linked
- * successfully */
- if (1 != msg->is_subordinate)
- {
- GNUNET_SERVER_receive_done (client, GNUNET_OK);
- return;
- }
- if ((delegated_host_id < route_list_size)
- && (NULL != route_list[delegated_host_id]))
- {
- GNUNET_break_op (0); /* Are you trying to link delegated host twice
- with is subordinate flag set to GNUNET_YES? */
- GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
- return;
- }
- new_route = GNUNET_malloc (sizeof (struct Route));
- new_route->dest = delegated_host_id;
- new_route->thru = route->dest;
- route_list_add (new_route);
- GNUNET_SERVER_receive_done (client, GNUNET_OK);
-}
-
-
-/**
- * The task to be executed if the forwarded peer create operation has been
- * timed out
- *
- * @param cls the FowardedOperationContext
- * @param tc the TaskContext from the scheduler
- */
-static void
-peer_create_forward_timeout (void *cls,
- const struct GNUNET_SCHEDULER_TaskContext *tc)
-{
- struct ForwardedOperationContext *fopc = cls;
-
- GNUNET_free (fopc->cls);
- forwarded_operation_timeout (fopc, tc);
-}
-
-
-/**
- * Callback to be called when forwarded peer create operation is successfull. We
- * have to relay the reply msg back to the client
- *
- * @param cls ForwardedOperationContext
- * @param msg the peer create success message
- */
-static void
-peer_create_success_cb (void *cls, const struct GNUNET_MessageHeader *msg)
-{
- struct ForwardedOperationContext *fopc = cls;
- struct Peer *remote_peer;
-
- if (ntohs (msg->type) == GNUNET_MESSAGE_TYPE_TESTBED_PEERCREATESUCCESS)
- {
- GNUNET_assert (NULL != fopc->cls);
- remote_peer = fopc->cls;
- peer_list_add (remote_peer);
- }
- forwarded_operation_reply_relay (fopc, msg);
-}
-
-
-/**
- * Function to destroy a peer
- *
- * @param peer the peer structure to destroy
- */
-static void
-destroy_peer (struct Peer *peer)
-{
- GNUNET_break (0 == peer->reference_cnt);
- if (GNUNET_YES == peer->is_remote)
- {
- peer_list_remove (peer);
- GNUNET_free (peer);
- return;
- }
- if (GNUNET_YES == peer->details.local.is_running)
- {
- GNUNET_TESTING_peer_stop (peer->details.local.peer);
- peer->details.local.is_running = GNUNET_NO;
- }
- GNUNET_TESTING_peer_destroy (peer->details.local.peer);
- GNUNET_CONFIGURATION_destroy (peer->details.local.cfg);
- peer_list_remove (peer);
- GNUNET_free (peer);
-}
-
-
-/**
- * Callback to be called when forwarded peer destroy operation is successfull. We
- * have to relay the reply msg back to the client
- *
- * @param cls ForwardedOperationContext
- * @param msg the peer create success message
- */
-static void
-peer_destroy_success_cb (void *cls, const struct GNUNET_MessageHeader *msg)
-{
- struct ForwardedOperationContext *fopc = cls;
- struct Peer *remote_peer;
-
- if (GNUNET_MESSAGE_TYPE_TESTBED_GENERICOPSUCCESS == ntohs (msg->type))
- {
- remote_peer = fopc->cls;
- GNUNET_assert (NULL != remote_peer);
- remote_peer->destroy_flag = GNUNET_YES;
- if (0 == remote_peer->reference_cnt)
- destroy_peer (remote_peer);
- }
- forwarded_operation_reply_relay (fopc, msg);
-}
-
-
-
-/**
- * Handler for GNUNET_MESSAGE_TYPE_TESTBED_CREATEPEER messages
- *
- * @param cls NULL
- * @param client identification of the client
- * @param message the actual message
- */
-static void
-handle_peer_create (void *cls, struct GNUNET_SERVER_Client *client,
- const struct GNUNET_MessageHeader *message)
-{
- const struct GNUNET_TESTBED_PeerCreateMessage *msg;
- struct GNUNET_TESTBED_PeerCreateSuccessEventMessage *reply;
- struct GNUNET_CONFIGURATION_Handle *cfg;
- struct ForwardedOperationContext *fo_ctxt;
- struct Route *route;
- struct Peer *peer;
- char *config;
- size_t dest_size;
- int ret;
- uint32_t config_size;
- uint32_t host_id;
- uint32_t peer_id;
- uint16_t msize;
-
-
- msize = ntohs (message->size);
- if (msize <= sizeof (struct GNUNET_TESTBED_PeerCreateMessage))
- {
- GNUNET_break (0); /* We need configuration */
- GNUNET_SERVER_receive_done (client, GNUNET_OK);
- return;
- }
- msg = (const struct GNUNET_TESTBED_PeerCreateMessage *) message;
- host_id = ntohl (msg->host_id);
- peer_id = ntohl (msg->peer_id);
- if (UINT32_MAX == peer_id)
- {
- send_operation_fail_msg (client, GNUNET_ntohll (msg->operation_id),
- "Cannot create peer with given ID");
- GNUNET_SERVER_receive_done (client, GNUNET_OK);
- return;
- }
- if (host_id == master_context->host_id)
- {
- char *emsg;
-
- /* We are responsible for this peer */
- msize -= sizeof (struct GNUNET_TESTBED_PeerCreateMessage);
- config_size = ntohl (msg->config_size);
- config = GNUNET_malloc (config_size);
- dest_size = config_size;
- if (Z_OK !=
- (ret =
- uncompress ((Bytef *) config, (uLongf *) & dest_size,
- (const Bytef *) &msg[1], (uLong) msize)))
- {
- GNUNET_break (0); /* uncompression error */
- GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
- return;
- }
- if (config_size != dest_size)
- {
- GNUNET_break (0); /* Uncompressed config size mismatch */
- GNUNET_free (config);
- GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
- return;
- }
- cfg = GNUNET_CONFIGURATION_create ();
- if (GNUNET_OK !=
- GNUNET_CONFIGURATION_deserialize (cfg, config, config_size, GNUNET_NO))
- {
- GNUNET_break (0); /* Configuration parsing error */
- GNUNET_free (config);
- GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
- return;
- }
- GNUNET_free (config);
- GNUNET_CONFIGURATION_set_value_number (cfg,
- "TESTBED",
- "PEERID",
- (unsigned long long) peer_id);
- peer = GNUNET_malloc (sizeof (struct Peer));
- peer->is_remote = GNUNET_NO;
- peer->details.local.cfg = cfg;
- peer->id = peer_id;
- LOG_DEBUG ("Creating peer with id: %u\n",
- (unsigned int) peer->id);
- peer->details.local.peer =
- GNUNET_TESTING_peer_configure (master_context->system,
- peer->details.local.cfg, peer->id,
- NULL /* Peer id */ ,
- &emsg);
- if (NULL == peer->details.local.peer)
- {
- LOG (GNUNET_ERROR_TYPE_WARNING, "Configuring peer failed: %s\n", emsg);
- GNUNET_free (emsg);
- GNUNET_free (peer);
- GNUNET_break (0);
- GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
- return;
- }
- peer->details.local.is_running = GNUNET_NO;
- peer_list_add (peer);
- reply =
- GNUNET_malloc (sizeof
- (struct GNUNET_TESTBED_PeerCreateSuccessEventMessage));
- reply->header.size =
- htons (sizeof (struct GNUNET_TESTBED_PeerCreateSuccessEventMessage));
- reply->header.type = htons (GNUNET_MESSAGE_TYPE_TESTBED_PEERCREATESUCCESS);
- reply->peer_id = msg->peer_id;
- reply->operation_id = msg->operation_id;
- queue_message (client, &reply->header);
- GNUNET_SERVER_receive_done (client, GNUNET_OK);
- return;
- }
-
- /* Forward peer create request */
- route = find_dest_route (host_id);
- if (NULL == route)
- {
- GNUNET_break (0);
- GNUNET_SERVER_receive_done (client, GNUNET_OK);
- return;
- }
-
- peer = GNUNET_malloc (sizeof (struct Peer));
- peer->is_remote = GNUNET_YES;
- peer->id = peer_id;
- peer->details.remote.slave = slave_list[route->dest];
- peer->details.remote.remote_host_id = host_id;
- fo_ctxt = GNUNET_malloc (sizeof (struct ForwardedOperationContext));
- GNUNET_SERVER_client_keep (client);
- fo_ctxt->client = client;
- fo_ctxt->operation_id = GNUNET_ntohll (msg->operation_id);
- fo_ctxt->cls = peer; //slave_list[route->dest]->controller;
- fo_ctxt->type = OP_PEER_CREATE;
- fo_ctxt->opc =
- GNUNET_TESTBED_forward_operation_msg_ (slave_list [route->dest]->controller,
- fo_ctxt->operation_id,
- &msg->header,
- peer_create_success_cb, fo_ctxt);
- fo_ctxt->timeout_task =
- GNUNET_SCHEDULER_add_delayed (TIMEOUT, &peer_create_forward_timeout,
- fo_ctxt);
- GNUNET_CONTAINER_DLL_insert_tail (fopcq_head, fopcq_tail, fo_ctxt);
- GNUNET_SERVER_receive_done (client, GNUNET_OK);
-}
-
-
-/**
- * Message handler for GNUNET_MESSAGE_TYPE_TESTBED_DESTROYPEER messages
- *
- * @param cls NULL
- * @param client identification of the client
- * @param message the actual message
- */
-static void
-handle_peer_destroy (void *cls, struct GNUNET_SERVER_Client *client,
- const struct GNUNET_MessageHeader *message)
-{
- const struct GNUNET_TESTBED_PeerDestroyMessage *msg;
- struct ForwardedOperationContext *fopc;
- struct Peer *peer;
- uint32_t peer_id;
-
- msg = (const struct GNUNET_TESTBED_PeerDestroyMessage *) message;
- peer_id = ntohl (msg->peer_id);
- LOG_DEBUG ("Received peer destory on peer: %u and operation id: %ul\n",
- peer_id, GNUNET_ntohll (msg->operation_id));
- if ((peer_list_size <= peer_id) || (NULL == peer_list[peer_id]))
- {
- LOG (GNUNET_ERROR_TYPE_ERROR,
- "Asked to destroy a non existent peer with id: %u\n", peer_id);
- send_operation_fail_msg (client, GNUNET_ntohll (msg->operation_id),
- "Peer doesn't exist");
- GNUNET_SERVER_receive_done (client, GNUNET_OK);
- return;
- }
- peer = peer_list[peer_id];
- if (GNUNET_YES == peer->is_remote)
- {
- /* Forward the destory message to sub controller */
- fopc = GNUNET_malloc (sizeof (struct ForwardedOperationContext));
- GNUNET_SERVER_client_keep (client);
- fopc->client = client;
- fopc->cls = peer;
- fopc->type = OP_PEER_DESTROY;
- fopc->operation_id = GNUNET_ntohll (msg->operation_id);
- fopc->opc =
- GNUNET_TESTBED_forward_operation_msg_ (peer->details.remote.slave->controller,
- fopc->operation_id, &msg->header,
- &peer_destroy_success_cb,
- fopc);
- fopc->timeout_task =
- GNUNET_SCHEDULER_add_delayed (TIMEOUT, &forwarded_operation_timeout,
- fopc);
- GNUNET_CONTAINER_DLL_insert_tail (fopcq_head, fopcq_tail, fopc);
- GNUNET_SERVER_receive_done (client, GNUNET_OK);
- return;
- }
- peer->destroy_flag = GNUNET_YES;
- if (0 == peer->reference_cnt)
- destroy_peer (peer);
- else
- LOG (GNUNET_ERROR_TYPE_DEBUG,
- "Delaying peer destroy as peer is currently in use\n");
- send_operation_success_msg (client, GNUNET_ntohll (msg->operation_id));
- GNUNET_SERVER_receive_done (client, GNUNET_OK);
-}
-
-
-/**
- * Message handler for GNUNET_MESSAGE_TYPE_TESTBED_DESTROYPEER messages
- *
- * @param cls NULL
- * @param client identification of the client
- * @param message the actual message
- */
-static void
-handle_peer_start (void *cls, struct GNUNET_SERVER_Client *client,
- const struct GNUNET_MessageHeader *message)
-{
- const struct GNUNET_TESTBED_PeerStartMessage *msg;
- struct GNUNET_TESTBED_PeerEventMessage *reply;
- struct ForwardedOperationContext *fopc;
- struct Peer *peer;
- uint32_t peer_id;
-
- msg = (const struct GNUNET_TESTBED_PeerStartMessage *) message;
- peer_id = ntohl (msg->peer_id);
- if ((peer_id >= peer_list_size) || (NULL == peer_list[peer_id]))
- {
- GNUNET_break (0);
- LOG (GNUNET_ERROR_TYPE_ERROR,
- "Asked to start a non existent peer with id: %u\n", peer_id);
- GNUNET_SERVER_receive_done (client, GNUNET_OK);
- return;
- }
- peer = peer_list[peer_id];
- if (GNUNET_YES == peer->is_remote)
- {
- fopc = GNUNET_malloc (sizeof (struct ForwardedOperationContext));
- GNUNET_SERVER_client_keep (client);
- fopc->client = client;
- fopc->operation_id = GNUNET_ntohll (msg->operation_id);
- fopc->type = OP_PEER_START;
- fopc->opc =
- GNUNET_TESTBED_forward_operation_msg_ (peer->details.remote.slave->controller,
- fopc->operation_id, &msg->header,
- &forwarded_operation_reply_relay,
- fopc);
- fopc->timeout_task =
- GNUNET_SCHEDULER_add_delayed (TIMEOUT, &forwarded_operation_timeout,
- fopc);
- GNUNET_CONTAINER_DLL_insert_tail (fopcq_head, fopcq_tail, fopc);
- GNUNET_SERVER_receive_done (client, GNUNET_OK);
- return;
- }
- if (GNUNET_OK != GNUNET_TESTING_peer_start (peer->details.local.peer))
- {
- send_operation_fail_msg (client, GNUNET_ntohll (msg->operation_id),
- "Failed to start");
- GNUNET_SERVER_receive_done (client, GNUNET_OK);
- return;
- }
- peer->details.local.is_running = GNUNET_YES;
- reply = GNUNET_malloc (sizeof (struct GNUNET_TESTBED_PeerEventMessage));
- reply->header.type = htons (GNUNET_MESSAGE_TYPE_TESTBED_PEEREVENT);
- reply->header.size = htons (sizeof (struct GNUNET_TESTBED_PeerEventMessage));
- reply->event_type = htonl (GNUNET_TESTBED_ET_PEER_START);
- reply->host_id = htonl (master_context->host_id);
- reply->peer_id = msg->peer_id;
- reply->operation_id = msg->operation_id;
- queue_message (client, &reply->header);
- GNUNET_SERVER_receive_done (client, GNUNET_OK);
-}
-
-
-/**
- * Message handler for GNUNET_MESSAGE_TYPE_TESTBED_DESTROYPEER messages
- *
- * @param cls NULL
- * @param client identification of the client
- * @param message the actual message
- */
-static void
-handle_peer_stop (void *cls, struct GNUNET_SERVER_Client *client,
- const struct GNUNET_MessageHeader *message)
-{
- const struct GNUNET_TESTBED_PeerStopMessage *msg;
- struct GNUNET_TESTBED_PeerEventMessage *reply;
- struct ForwardedOperationContext *fopc;
- struct Peer *peer;
- uint32_t peer_id;
-
- msg = (const struct GNUNET_TESTBED_PeerStopMessage *) message;
- peer_id = ntohl (msg->peer_id);
- LOG (GNUNET_ERROR_TYPE_DEBUG, "Received PEER_STOP for peer %u\n", peer_id);
- if ((peer_id >= peer_list_size) || (NULL == peer_list[peer_id]))
- {
- send_operation_fail_msg (client, GNUNET_ntohll (msg->operation_id),
- "Peer not found");
- GNUNET_SERVER_receive_done (client, GNUNET_OK);
- return;
- }
- peer = peer_list[peer_id];
- if (GNUNET_YES == peer->is_remote)
- {
- LOG (GNUNET_ERROR_TYPE_DEBUG, "Forwarding PEER_STOP for peer %u\n", peer_id);
- fopc = GNUNET_malloc (sizeof (struct ForwardedOperationContext));
- GNUNET_SERVER_client_keep (client);
- fopc->client = client;
- fopc->operation_id = GNUNET_ntohll (msg->operation_id);
- fopc->type = OP_PEER_STOP;
- fopc->opc =
- GNUNET_TESTBED_forward_operation_msg_ (peer->details.remote.slave->controller,
- fopc->operation_id, &msg->header,
- &forwarded_operation_reply_relay,
- fopc);
- fopc->timeout_task =
- GNUNET_SCHEDULER_add_delayed (TIMEOUT, &forwarded_operation_timeout,
- fopc);
- GNUNET_CONTAINER_DLL_insert_tail (fopcq_head, fopcq_tail, fopc);
- GNUNET_SERVER_receive_done (client, GNUNET_OK);
- return;
- }
- if (GNUNET_OK != GNUNET_TESTING_peer_stop (peer->details.local.peer))
- {
- LOG (GNUNET_ERROR_TYPE_WARNING, "Stopping peer %u failed\n", peer_id);
- send_operation_fail_msg (client, GNUNET_ntohll (msg->operation_id),
- "Peer not running");
- GNUNET_SERVER_receive_done (client, GNUNET_OK);
- return;
- }
- LOG (GNUNET_ERROR_TYPE_DEBUG, "Peer %u successfully stopped\n", peer_id);
- peer->details.local.is_running = GNUNET_NO;
- reply = GNUNET_malloc (sizeof (struct GNUNET_TESTBED_PeerEventMessage));
- reply->header.type = htons (GNUNET_MESSAGE_TYPE_TESTBED_PEEREVENT);
- reply->header.size = htons (sizeof (struct GNUNET_TESTBED_PeerEventMessage));
- reply->event_type = htonl (GNUNET_TESTBED_ET_PEER_STOP);
- reply->host_id = htonl (master_context->host_id);
- reply->peer_id = msg->peer_id;
- reply->operation_id = msg->operation_id;
- queue_message (client, &reply->header);
- GNUNET_SERVER_receive_done (client, GNUNET_OK);
-}
-
-
-/**
- * Handler for GNUNET_MESSAGE_TYPE_TESTBED_GETPEERCONFIG messages
- *
- * @param cls NULL
- * @param client identification of the client
- * @param message the actual message
- */
-static void
-handle_peer_get_config (void *cls, struct GNUNET_SERVER_Client *client,
- const struct GNUNET_MessageHeader *message)
-{
- const struct GNUNET_TESTBED_PeerGetConfigurationMessage *msg;
- struct GNUNET_TESTBED_PeerConfigurationInformationMessage *reply;
- struct Peer *peer;
- char *config;
- char *xconfig;
- size_t c_size;
- size_t xc_size;
- uint32_t peer_id;
- uint16_t msize;
-
- msg = (const struct GNUNET_TESTBED_PeerGetConfigurationMessage *) message;
- peer_id = ntohl (msg->peer_id);
- if ((peer_id >= peer_list_size) || (NULL == peer_list[peer_id]))
- {
- send_operation_fail_msg (client, GNUNET_ntohll (msg->operation_id),
- "Peer not found");
- GNUNET_SERVER_receive_done (client, GNUNET_OK);
- return;
- }
- peer = peer_list[peer_id];
- if (GNUNET_YES == peer->is_remote)
- {
- struct ForwardedOperationContext *fopc;
-
- LOG_DEBUG ("Forwarding PEER_GET_CONFIG for peer: %u\n", peer_id);
- fopc = GNUNET_malloc (sizeof (struct ForwardedOperationContext));
- GNUNET_SERVER_client_keep (client);
- fopc->client = client;
- fopc->operation_id = GNUNET_ntohll (msg->operation_id);
- fopc->type = OP_PEER_INFO;
- fopc->opc =
- GNUNET_TESTBED_forward_operation_msg_ (peer->details.remote.slave->controller,
- fopc->operation_id, &msg->header,
- &forwarded_operation_reply_relay,
- fopc);
- fopc->timeout_task =
- GNUNET_SCHEDULER_add_delayed (TIMEOUT, &forwarded_operation_timeout,
- fopc);
- GNUNET_CONTAINER_DLL_insert_tail (fopcq_head, fopcq_tail, fopc);
- GNUNET_SERVER_receive_done (client, GNUNET_OK);
- return;
- }
- LOG_DEBUG ("Received PEER_GET_CONFIG for peer: %u\n", peer_id);
- config =
- GNUNET_CONFIGURATION_serialize (peer_list[peer_id]->details.local.cfg,
- &c_size);
- xc_size = GNUNET_TESTBED_compress_config_ (config, c_size, &xconfig);
- GNUNET_free (config);
- msize =
- xc_size +
- sizeof (struct GNUNET_TESTBED_PeerConfigurationInformationMessage);
- reply = GNUNET_realloc (xconfig, msize);
- (void) memmove (&reply[1], reply, xc_size);
- reply->header.size = htons (msize);
- reply->header.type = htons (GNUNET_MESSAGE_TYPE_TESTBED_PEERCONFIG);
- reply->peer_id = msg->peer_id;
- reply->operation_id = msg->operation_id;
- GNUNET_TESTING_peer_get_identity (peer_list[peer_id]->details.local.peer,
- &reply->peer_identity);
- reply->config_size = htons ((uint16_t) c_size);
- queue_message (client, &reply->header);
- GNUNET_SERVER_receive_done (client, GNUNET_OK);
-}
-
-
-/**
- * Cleanup overlay connect context structure
- *
- * @param occ the overlay connect context
- */
-static void
-cleanup_occ (struct OverlayConnectContext *occ)
-{
- LOG_DEBUG ("0x%llx: Cleaning up occ\n", occ->op_id);
- GNUNET_free_non_null (occ->emsg);
- GNUNET_free_non_null (occ->hello);
- GNUNET_SERVER_client_drop (occ->client);
- if (NULL != occ->opc)
- GNUNET_TESTBED_forward_operation_msg_cancel_ (occ->opc);
- if (GNUNET_SCHEDULER_NO_TASK != occ->send_hello_task)
- GNUNET_SCHEDULER_cancel (occ->send_hello_task);
- if (GNUNET_SCHEDULER_NO_TASK != occ->cleanup_task)
- GNUNET_SCHEDULER_cancel (occ->cleanup_task);
- if (GNUNET_SCHEDULER_NO_TASK != occ->timeout_task)
- GNUNET_SCHEDULER_cancel (occ->timeout_task);
- if (NULL != occ->ch)
- {
- GNUNET_CORE_disconnect (occ->ch);
- occ->peer->reference_cnt--;
- }
- if (NULL != occ->ghh)
- GNUNET_TRANSPORT_get_hello_cancel (occ->ghh);
- if (NULL != occ->ohh)
- GNUNET_TRANSPORT_offer_hello_cancel (occ->ohh);
- if (GNUNET_SCHEDULER_NO_TASK != occ->tcc.task)
- GNUNET_SCHEDULER_cancel (occ->tcc.task);
- if (NULL != occ->tcc.tch)
- GNUNET_TRANSPORT_try_connect_cancel (occ->tcc.tch);
- if (NULL != occ->p1th)
- {
- GNUNET_TRANSPORT_disconnect (occ->p1th);
- occ->peer->reference_cnt--;
- }
- if (NULL != occ->tcc.th)
- {
- GNUNET_TRANSPORT_disconnect (occ->tcc.th);
- peer_list[occ->other_peer_id]->reference_cnt--;
- }
- if ((GNUNET_YES == occ->peer->destroy_flag)
- && (0 == occ->peer->reference_cnt))
- destroy_peer (occ->peer);
- if ((NULL == occ->peer2_controller)
- && (GNUNET_YES == peer_list[occ->other_peer_id]->destroy_flag)
- && (0 == peer_list[occ->other_peer_id]->reference_cnt))
- destroy_peer (peer_list[occ->other_peer_id]);
- GNUNET_CONTAINER_DLL_remove (occq_head, occq_tail, occ);
- GNUNET_free (occ);
-}
-
-
-/**
- * Task for cleaing up overlay connect context structure
- *
- * @param cls the overlay connect context
- * @param tc the task context
- */
-static void
-do_cleanup_occ (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
-{
- struct OverlayConnectContext *occ = cls;
-
- occ->cleanup_task = GNUNET_SCHEDULER_NO_TASK;
- cleanup_occ (occ);
-}
-
-
-/**
- * Task which will be run when overlay connect request has been timed out
- *
- * @param cls the OverlayConnectContext
- * @param tc the TaskContext
- */
-static void
-timeout_overlay_connect (void *cls,
- const struct GNUNET_SCHEDULER_TaskContext *tc)
-{
- struct OverlayConnectContext *occ = cls;
-
- occ->timeout_task = GNUNET_SCHEDULER_NO_TASK;
- LOG (GNUNET_ERROR_TYPE_WARNING,
- "0x%llx: Timeout while connecting peers %u and %u\n",
- occ->op_id, occ->peer_id, occ->other_peer_id);
- send_operation_fail_msg (occ->client, occ->op_id, occ->emsg);
- cleanup_occ (occ);
-}
-
-
-
-/**
- * Function called to notify transport users that another
- * peer connected to us.
- *
- * @param cls closure
- * @param new_peer the peer that connected
- * @param ats performance data
- * @param ats_count number of entries in ats (excluding 0-termination)
- */
-static void
-overlay_connect_notify (void *cls, const struct GNUNET_PeerIdentity *new_peer,
- const struct GNUNET_ATS_Information *ats,
- unsigned int ats_count)
-{
- struct OverlayConnectContext *occ = cls;
- struct GNUNET_TESTBED_ConnectionEventMessage *msg;
- char *new_peer_str;
- char *other_peer_str;
-
- //LOG_DEBUG ("Overlay connect notify\n");
- if (0 ==
- memcmp (new_peer, &occ->peer_identity,
- sizeof (struct GNUNET_PeerIdentity)))
- return;
- new_peer_str = GNUNET_strdup (GNUNET_i2s (new_peer));
- other_peer_str = GNUNET_strdup (GNUNET_i2s (&occ->other_peer_identity));
- if (0 !=
- memcmp (new_peer, &occ->other_peer_identity,
- sizeof (struct GNUNET_PeerIdentity)))
- {
- /* LOG_DEBUG ("Unexpected peer %4s connected when expecting peer %4s\n", */
- /* new_peer_str, other_peer_str); */
- GNUNET_free (new_peer_str);
- GNUNET_free (other_peer_str);
- return;
- }
- GNUNET_free (new_peer_str);
- LOG_DEBUG ("0x%llx: Peer %4s connected to peer %4s\n", occ->op_id,
- other_peer_str, GNUNET_i2s (&occ->peer_identity));
- GNUNET_free (other_peer_str);
- if (GNUNET_SCHEDULER_NO_TASK != occ->send_hello_task)
- {
- GNUNET_SCHEDULER_cancel (occ->send_hello_task);
- occ->send_hello_task = GNUNET_SCHEDULER_NO_TASK;
- }
- GNUNET_assert (GNUNET_SCHEDULER_NO_TASK != occ->timeout_task);
- GNUNET_SCHEDULER_cancel (occ->timeout_task);
- occ->timeout_task = GNUNET_SCHEDULER_NO_TASK;
- if (GNUNET_SCHEDULER_NO_TASK != occ->tcc.task)
- {
- GNUNET_SCHEDULER_cancel (occ->tcc.task);
- occ->tcc.task = GNUNET_SCHEDULER_NO_TASK;
- }
- GNUNET_free_non_null (occ->emsg);
- occ->emsg = NULL;
- LOG_DEBUG ("0x%llx: Peers connected - Sending overlay connect success\n",
- occ->op_id);
- msg = GNUNET_malloc (sizeof (struct GNUNET_TESTBED_ConnectionEventMessage));
- msg->header.size =
- htons (sizeof (struct GNUNET_TESTBED_ConnectionEventMessage));
- msg->header.type = htons (GNUNET_MESSAGE_TYPE_TESTBED_PEERCONEVENT);
- msg->event_type = htonl (GNUNET_TESTBED_ET_CONNECT);
- msg->peer1 = htonl (occ->peer_id);
- msg->peer2 = htonl (occ->other_peer_id);
- msg->operation_id = GNUNET_htonll (occ->op_id);
- queue_message (occ->client, &msg->header);
- occ->cleanup_task = GNUNET_SCHEDULER_add_now (&do_cleanup_occ, occ);
- //cleanup_occ (occ);
-}
-
-
-/**
- * Task to ask transport of a peer to connect to another peer
- *
- * @param cls the TryConnectContext
- * @param tc the scheduler task context
- */
-static void
-try_connect_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc);
-
-
-/**
- * Callback to be called with result of the try connect request.
- *
- * @param cls the overlay connect context
- * @param result GNUNET_OK if message was transmitted to transport service
- * GNUNET_SYSERR if message was not transmitted to transport service
- */
-static void
-try_connect_cb (void *cls, const int result)
-{
- struct TryConnectContext *tcc = cls;
-
- tcc->tch = NULL;
- GNUNET_assert (GNUNET_SCHEDULER_NO_TASK == tcc->task);
- tcc->task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply
- (GNUNET_TIME_UNIT_MILLISECONDS,
- 500 + pow(2, ++tcc->retries)),
- &try_connect_task, tcc);
-}
-
-
-/**
- * Task to ask transport of a peer to connect to another peer
- *
- * @param cls the TryConnectContext
- * @param tc the scheduler task context
- */
-static void
-try_connect_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
-{
- struct TryConnectContext *tcc = cls;
-
- tcc->task = GNUNET_SCHEDULER_NO_TASK;
- if (0 != (GNUNET_SCHEDULER_REASON_SHUTDOWN & tc->reason))
- return;
- GNUNET_assert (NULL == tcc->tch);
- GNUNET_assert (NULL != tcc->pid);
- GNUNET_assert (NULL != tcc->th);
- LOG_DEBUG ("0x%llx: Trail %u to connect to peer %s\n", tcc->op_id, tcc->retries,
- GNUNET_i2s(tcc->pid));
- tcc->tch = GNUNET_TRANSPORT_try_connect (tcc->th, tcc->pid, &try_connect_cb, tcc);
-}
-
-
-/**
- * Task to offer HELLO of peer 1 to peer 2 and try to make peer 2 to connect to
- * peer 1.
- *
- * @param cls the OverlayConnectContext
- * @param tc the TaskContext from scheduler
- */
-static void
-send_hello (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc);
-
-
-/**
- * Task that is run when hello has been sent
- *
- * @param cls the overlay connect context
- * @param tc the scheduler task context; if tc->reason =
- * GNUNET_SCHEDULER_REASON_TIMEOUT then sending HELLO failed; if
- * GNUNET_SCHEDULER_REASON_READ_READY is succeeded
- */
-static void
-occ_hello_sent_cb (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
-{
- struct OverlayConnectContext *occ = cls;
-
- occ->ohh = NULL;
- GNUNET_assert (GNUNET_SCHEDULER_NO_TASK == occ->send_hello_task);
- if (GNUNET_SCHEDULER_REASON_TIMEOUT == tc->reason)
- {
- GNUNET_free_non_null (occ->emsg);
- GNUNET_asprintf (&occ->emsg,
- "0x%llx: Timeout while offering HELLO to other peer",
- occ->op_id);
- occ->send_hello_task = GNUNET_SCHEDULER_add_now (&send_hello, occ);
- return;
- }
- if (GNUNET_SCHEDULER_REASON_READ_READY != tc->reason)
- return;
- GNUNET_free_non_null (occ->emsg);
- GNUNET_asprintf (&occ->emsg, "0x%llx: Timeout while try connect",
- occ->op_id);
- occ->tcc.pid = &occ->peer_identity;
- occ->tcc.op_id = occ->op_id;
- occ->tcc.task = GNUNET_SCHEDULER_add_now (&try_connect_task, &occ->tcc);
-}
-
-
-/**
- * Task to offer HELLO of peer 1 to peer 2 and try to make peer 2 to connect to
- * peer 1.
- *
- * @param cls the OverlayConnectContext
- * @param tc the TaskContext from scheduler
- */
-static void
-send_hello (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
-{
- struct OverlayConnectContext *occ = cls;
- char *other_peer_str;
-
- occ->send_hello_task = GNUNET_SCHEDULER_NO_TASK;
- if (0 != (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN))
- return;
- GNUNET_assert (NULL != occ->hello);
- other_peer_str = GNUNET_strdup (GNUNET_i2s (&occ->other_peer_identity));
- if (NULL != occ->peer2_controller)
- {
- struct GNUNET_TESTBED_RequestConnectMessage *msg;
- uint16_t msize;
- uint16_t hello_size;
-
- LOG_DEBUG ("0x%llx: Offering HELLO of %s (size: %u) to %s via Remote "
- "Overlay Request\n",
- occ->op_id,
- GNUNET_i2s (&occ->peer_identity),
- ntohs (occ->hello->size),
- other_peer_str);
- hello_size = ntohs (occ->hello->size);
- msize = sizeof (struct GNUNET_TESTBED_RequestConnectMessage) + hello_size;
- msg = GNUNET_malloc (msize);
- msg->header.type = htons (GNUNET_MESSAGE_TYPE_TESTBED_REQUESTCONNECT);
- msg->header.size = htons (msize);
- msg->peer = htonl (occ->other_peer_id);
- msg->operation_id = GNUNET_htonll (occ->op_id);
- (void) memcpy (&msg->peer_identity, &occ->peer_identity,
- sizeof (struct GNUNET_PeerIdentity));
- memcpy (msg->hello, occ->hello, hello_size);
- GNUNET_TESTBED_queue_message_ (occ->peer2_controller, &msg->header);
- }
- else
- {
- LOG_DEBUG ("0x%llx: Offering HELLO of %s to %s\n",
- occ->op_id,
- GNUNET_i2s (&occ->peer_identity), other_peer_str);
- occ->ohh = GNUNET_TRANSPORT_offer_hello (occ->tcc.th,
- occ->hello,
- occ_hello_sent_cb,
- occ);
- if (NULL == occ->ohh)
- {
- GNUNET_break (0);
- occ->send_hello_task =
- GNUNET_SCHEDULER_add_delayed
- (GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_MILLISECONDS,
- 100 + GNUNET_CRYPTO_random_u32
- (GNUNET_CRYPTO_QUALITY_WEAK, 500)),
- &send_hello, occ);
- }
- }
- GNUNET_free (other_peer_str);
-}
-
-
-/**
- * Connects to the transport of the other peer if it is a local peer and
- * schedules the send hello task
- *
- * @param occ the overlay connect context
- */
-static void
-p2_transport_connect (struct OverlayConnectContext *occ)
-{
- GNUNET_assert (NULL == occ->emsg);
- GNUNET_assert (NULL != occ->hello);
- GNUNET_assert (NULL == occ->ghh);
- GNUNET_assert (NULL == occ->p1th);
- if (NULL == occ->peer2_controller)
- {
- peer_list[occ->other_peer_id]->reference_cnt++;
- occ->tcc.th =
- GNUNET_TRANSPORT_connect (peer_list[occ->other_peer_id]->details.local.cfg,
- &occ->other_peer_identity, NULL, NULL, NULL,
- NULL);
- if (NULL == occ->tcc.th)
- {
- GNUNET_asprintf (&occ->emsg, "0x%llx: Cannot connect to TRANSPORT of %s",
- occ->op_id, GNUNET_i2s (&occ->other_peer_identity));
- GNUNET_SCHEDULER_cancel (occ->timeout_task);
- occ->timeout_task = GNUNET_SCHEDULER_add_now (&timeout_overlay_connect, occ);
- return;
- }
- }
- GNUNET_asprintf (&occ->emsg, "0x%llx: Timeout while offering HELLO to %s",
- occ->op_id, GNUNET_i2s (&occ->other_peer_identity));
- occ->send_hello_task = GNUNET_SCHEDULER_add_now (&send_hello, occ);
-}
-
-
-/**
- * Test for checking whether HELLO message is empty
- *
- * @param cls empty flag to set
- * @param address the HELLO
- * @param expiration expiration of the HELLO
- * @return
- */
-static int
-test_address (void *cls, const struct GNUNET_HELLO_Address *address,
- struct GNUNET_TIME_Absolute expiration)
-{
- int *empty = cls;
-
- *empty = GNUNET_NO;
- return GNUNET_OK;
-}
-
-
-/**
- * Function called whenever there is an update to the HELLO of peers in the
- * OverlayConnectClosure. If we have a valid HELLO, we connect to the peer 2's
- * transport and offer peer 1's HELLO and ask peer 2 to connect to peer 1
- *
- * @param cls closure
- * @param hello our updated HELLO
- */
-static void
-hello_update_cb (void *cls, const struct GNUNET_MessageHeader *hello)
-{
- struct OverlayConnectContext *occ = cls;
- int empty;
- uint16_t msize;
-
- msize = ntohs (hello->size);
- empty = GNUNET_YES;
- (void) GNUNET_HELLO_iterate_addresses ((const struct GNUNET_HELLO_Message *)
- hello, GNUNET_NO, &test_address,
- &empty);
- if (GNUNET_YES == empty)
- {
- LOG_DEBUG ("0x%llx: HELLO of %s is empty\n",
- occ->op_id, GNUNET_i2s (&occ->peer_identity));
- return;
- }
- LOG_DEBUG ("0x%llx: Received HELLO of %s\n",
- occ->op_id, GNUNET_i2s (&occ->peer_identity));
- occ->hello = GNUNET_malloc (msize);
- hello_cache_add (&occ->peer_identity, hello);
- memcpy (occ->hello, hello, msize);
- GNUNET_TRANSPORT_get_hello_cancel (occ->ghh);
- occ->ghh = NULL;
- GNUNET_TRANSPORT_disconnect (occ->p1th);
- occ->p1th = NULL;
- occ->peer->reference_cnt--;
- GNUNET_free_non_null (occ->emsg);
- occ->emsg = NULL;
- p2_transport_connect (occ);
-}
-
-
-/**
- * Function called after GNUNET_CORE_connect has succeeded (or failed
- * for good). Note that the private key of the peer is intentionally
- * not exposed here; if you need it, your process should try to read
- * the private key file directly (which should work if you are
- * authorized...).
- *
- * @param cls closure
- * @param server handle to the server, NULL if we failed
- * @param my_identity ID of this peer, NULL if we failed
- */
-static void
-core_startup_cb (void *cls, struct GNUNET_CORE_Handle *server,
- const struct GNUNET_PeerIdentity *my_identity)
-{
- struct OverlayConnectContext *occ = cls;
- const struct GNUNET_MessageHeader *hello;
-
- GNUNET_free_non_null (occ->emsg);
- (void) GNUNET_asprintf (&occ->emsg,
- "0x%llx: Failed to connect to CORE of peer with"
- "id: %u", occ->op_id, occ->peer_id);
- if ((NULL == server) || (NULL == my_identity))
- goto error_return;
- GNUNET_free (occ->emsg);
- occ->ch = server;
- occ->emsg = NULL;
- memcpy (&occ->peer_identity, my_identity,
- sizeof (struct GNUNET_PeerIdentity));
- LOG_DEBUG ("0x%llx: Acquiring HELLO of peer %s\n",
- occ->op_id, GNUNET_i2s (&occ->peer_identity));
- /* Lookup for HELLO in hello cache */
- if (NULL != (hello = hello_cache_lookup (&occ->peer_identity)))
- {
- LOG_DEBUG ("0x%llx: HELLO of peer %s found in cache\n",
- occ->op_id, GNUNET_i2s (&occ->peer_identity));
- occ->hello = GNUNET_copy_message (hello);
- p2_transport_connect (occ);
- return;
- }
- occ->peer->reference_cnt++;
- occ->p1th =
- GNUNET_TRANSPORT_connect (occ->peer->details.local.cfg,
- &occ->peer_identity, NULL, NULL, NULL, NULL);
- if (NULL == occ->p1th)
- {
- GNUNET_asprintf (&occ->emsg,
- "0x%llx: Cannot connect to TRANSPORT of peer %4s",
- occ->op_id, GNUNET_i2s (&occ->peer_identity));
- goto error_return;
- }
- GNUNET_asprintf (&occ->emsg,
- "0x%llx: Timeout while acquiring HELLO of peer %4s",
- occ->op_id, GNUNET_i2s (&occ->peer_identity));
- occ->ghh = GNUNET_TRANSPORT_get_hello (occ->p1th, &hello_update_cb, occ);
- return;
-
- error_return:
- GNUNET_SCHEDULER_cancel (occ->timeout_task);
- occ->timeout_task = GNUNET_SCHEDULER_add_now (&timeout_overlay_connect, occ);
- return;
-}
-
-
-/**
- * Callback to be called when forwarded get peer config operation as part of
- * overlay connect is successfull. Connection to Peer 1's core is made and is
- * checked for new connection from peer 2
- *
- * @param cls ForwardedOperationContext
- * @param msg the peer create success message
- */
-static void
-overlay_connect_get_config (void *cls, const struct GNUNET_MessageHeader *msg)
-{
- struct OverlayConnectContext *occ = cls;
- const struct GNUNET_TESTBED_PeerConfigurationInformationMessage *cmsg;
- const struct GNUNET_CORE_MessageHandler no_handlers[] = {
- {NULL, 0, 0}
- };
-
- occ->opc = NULL;
- if (GNUNET_MESSAGE_TYPE_TESTBED_PEERCONFIG != ntohs (msg->type))
- goto error_return;
- cmsg = (const struct GNUNET_TESTBED_PeerConfigurationInformationMessage *)
- msg;
- memcpy (&occ->other_peer_identity, &cmsg->peer_identity,
- sizeof (struct GNUNET_PeerIdentity));
- GNUNET_free_non_null (occ->emsg);
- GNUNET_asprintf (&occ->emsg, "0x%llx: Timeout while connecting to CORE",
- occ->op_id);
- occ->peer->reference_cnt++;
- occ->ch =
- GNUNET_CORE_connect (occ->peer->details.local.cfg, occ, &core_startup_cb,
- &overlay_connect_notify, NULL, NULL, GNUNET_NO, NULL,
- GNUNET_NO, no_handlers);
- if (NULL == occ->ch)
- goto error_return;
- return;
-
- error_return:
- GNUNET_SCHEDULER_cancel (occ->timeout_task);
- occ->timeout_task =
- GNUNET_SCHEDULER_add_now (&timeout_overlay_connect, occ);
-}
-
-
-/**
- * Callback which will be called to after a host registration succeeded or failed
- *
- * @param cls the RegisteredHostContext
- * @param emsg the error message; NULL if host registration is successful
- */
-static void
-registeredhost_registration_completion (void *cls, const char *emsg)
-{
- struct RegisteredHostContext *rhc = cls;
- struct GNUNET_CONFIGURATION_Handle *cfg;
- uint32_t peer2_host_id;
-
- /* if (NULL != rhc->focc_dll_head) */
- /* process_next_focc (rhc); */
- peer2_host_id = GNUNET_TESTBED_host_get_id_ (rhc->reg_host);
- GNUNET_assert (RHC_INIT == rhc->state);
- GNUNET_assert (NULL == rhc->sub_op);
- if ((NULL == rhc->gateway2)
- || ((peer2_host_id < slave_list_size) /* Check if we have the needed config */
- && (NULL != slave_list[peer2_host_id])))
- {
- rhc->state = RHC_LINK;
- cfg = (NULL == rhc->gateway2) ? our_config : slave_list[peer2_host_id]->cfg;
- rhc->sub_op =
- GNUNET_TESTBED_controller_link (rhc,
- rhc->gateway->controller,
- rhc->reg_host,
- rhc->host,
- cfg,
- GNUNET_NO);
- return;
- }
- rhc->state = RHC_GET_CFG;
- rhc->sub_op = GNUNET_TESTBED_get_slave_config (rhc,
- rhc->gateway2->controller,
- rhc->reg_host);
-}
-
-
-/**
- * Iterator to match a registered host context
- *
- * @param cls pointer 2 pointer of RegisteredHostContext
- * @param key current key code
- * @param value value in the hash map
- * @return GNUNET_YES if we should continue to
- * iterate,
- * GNUNET_NO if not.
- */
-static int
-reghost_match_iterator (void *cls,
- const struct GNUNET_HashCode * key,
- void *value)
-{
- struct RegisteredHostContext **rh = cls;
- struct RegisteredHostContext *rh_val = value;
-
- if ((rh_val->host == (*rh)->host) && (rh_val->reg_host == (*rh)->reg_host))
- {
- GNUNET_free (*rh);
- *rh = rh_val;
- return GNUNET_NO;
- }
- return GNUNET_YES;
-}
-
-
-/**
- * Function to generate the hashcode corresponding to a RegisteredHostContext
- *
- * @param reg_host the host which is being registered in RegisteredHostContext
- * @param host the host of the controller which has to connect to the above rhost
- * @return the hashcode
- */
-static struct GNUNET_HashCode
-hash_hosts (struct GNUNET_TESTBED_Host *reg_host,
- struct GNUNET_TESTBED_Host *host)
-{
- struct GNUNET_HashCode hash;
- uint32_t host_ids[2];
-
- host_ids[0] = GNUNET_TESTBED_host_get_id_ (reg_host);
- host_ids[1] = GNUNET_TESTBED_host_get_id_ (host);
- GNUNET_CRYPTO_hash (host_ids, sizeof (host_ids), &hash);
- return hash;
-}
-
-
-/**
- * Handler for GNUNET_MESSAGE_TYPE_TESTBED_OLCONNECT messages