-remove trailing whitespace
[oweals/gnunet.git] / src / testbed / gnunet-service-testbed.c
index c15e9d80b059afe3f49d32b2f21856d3855d106d..6f806e21b6d535e1726f67602a186b8617bf445d 100644 (file)
@@ -1,10 +1,10 @@
 /*
   This file is part of GNUnet.
-  (C) 2012 Christian Grothoff (and other contributing authors)
+  (C) 2008--2013 Christian Grothoff (and other contributing authors)
 
   GNUnet is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published
-  by the Free Software Foundation; either version 2, or (at your
+  by the Free Software Foundation; either version 3, or (at your
   option) any later version.
 
   GNUnet is distributed in the hope that it will be useful, but
@@ -25,9 +25,8 @@
  */
 
 #include "gnunet-service-testbed.h"
-
-#include <zlib.h>
-
+#include "gnunet-service-testbed_barriers.h"
+#include "gnunet-service-testbed_connectionpool.h"
 
 /***********/
 /* Globals */
 /**
  * Our configuration
  */
-struct GNUNET_CONFIGURATION_Handle *our_config;
+struct GNUNET_CONFIGURATION_Handle *GST_config;
 
 /**
  * The master context; generated with the first INIT message
  */
 struct Context *GST_context;
 
-/**
- * A list of directly linked neighbours
- */
-struct Slave **GST_slave_list;
-
-/**
- * A list of peers we know about
- */
-struct Peer **GST_peer_list;
-
 /**
  * Array of hosts
  */
@@ -74,14 +63,14 @@ struct ForwardedOperationContext *fopcq_tail;
 struct OperationQueue *GST_opq_openfds;
 
 /**
- * The size of the host list
+ * Timeout for operations which may take some time
  */
-unsigned int GST_host_list_size;
+const struct GNUNET_TIME_Relative GST_timeout;
 
 /**
- * The size of directly linked neighbours list
+ * The size of the host list
  */
-unsigned int GST_slave_list_size;
+unsigned int GST_host_list_size;
 
 /**
  * The size of the peer list
@@ -129,16 +118,6 @@ static char *hostname;
  */
 static struct GNUNET_SERVER_TransmitHandle *transmit_handle;
 
-/**
- * The head for the LCF queue
- */
-static struct LCFContextQueue *lcfq_head;
-
-/**
- * The tail for the LCF queue
- */
-static struct LCFContextQueue *lcfq_tail;
-
 /**
  * The message queue head
  */
@@ -149,30 +128,6 @@ static struct MessageQueue *mq_head;
  */
 static struct MessageQueue *mq_tail;
 
-/**
- * The hashmap of shared services
- */
-static struct GNUNET_CONTAINER_MultiHashMap *ss_map;
-
-/**
- * A list of routes
- */
-static struct Route **route_list;
-
-/**
- * The event mask for the events we listen from sub-controllers
- */
-static uint64_t event_mask;
-
-/**
- * The size of the route list
- */
-static unsigned int route_list_size;
-
-/**
- * The lcf_task handle
- */
-static GNUNET_SCHEDULER_TaskIdentifier lcf_proc_task_id;
 
 /**
  * The shutdown task handle
@@ -251,30 +206,6 @@ GST_queue_message (struct GNUNET_SERVER_Client *client,
 }
 
 
-/**
- * Similar to GNUNET_array_grow(); however instead of calling GNUNET_array_grow()
- * several times we call it only once. The array is also made to grow in steps
- * of LIST_GROW_STEP.
- *
- * @param ptr the array pointer to grow
- * @param size the size of array
- * @param accommodate_size the size which the array has to accommdate; after
- *          this call the array will be big enough to accommdate sizes upto
- *          accommodate_size
- */
-#define array_grow_large_enough(ptr, size, accommodate_size) \
-  do                                                                    \
-  {                                                                     \
-    unsigned int growth_size;                                           \
-    GNUNET_assert (size <= accommodate_size);                            \
-    growth_size = size;                                                 \
-    while (growth_size <= accommodate_size)                             \
-      growth_size += LIST_GROW_STEP;                                    \
-    GNUNET_array_grow (ptr, size, growth_size);                         \
-    GNUNET_assert (size > accommodate_size);                            \
-  } while (0)
-
-
 /**
  * Function to add a host to the current list of known hosts
  *
@@ -289,7 +220,7 @@ host_list_add (struct GNUNET_TESTBED_Host *host)
 
   host_id = GNUNET_TESTBED_host_get_id_ (host);
   if (GST_host_list_size <= host_id)
-    array_grow_large_enough (GST_host_list, GST_host_list_size, host_id);
+    GST_array_grow_large_enough (GST_host_list, GST_host_list_size, host_id);
   if (NULL != GST_host_list[host_id])
   {
     LOG_DEBUG ("A host with id: %u already exists\n", host_id);
@@ -300,122 +231,6 @@ host_list_add (struct GNUNET_TESTBED_Host *host)
 }
 
 
-/**
- * Adds a route to the route list
- *
- * @param route the route to add
- */
-static void
-route_list_add (struct Route *route)
-{
-  if (route->dest >= route_list_size)
-    array_grow_large_enough (route_list, route_list_size, route->dest);
-  GNUNET_assert (NULL == route_list[route->dest]);
-  route_list[route->dest] = route;
-}
-
-
-/**
- * Adds a slave to the slave array
- *
- * @param slave the slave controller to add
- */
-static void
-slave_list_add (struct Slave *slave)
-{
-  if (slave->host_id >= GST_slave_list_size)
-    array_grow_large_enough (GST_slave_list, GST_slave_list_size,
-                             slave->host_id);
-  GNUNET_assert (NULL == GST_slave_list[slave->host_id]);
-  GST_slave_list[slave->host_id] = slave;
-}
-
-
-/**
- * Adds a peer to the peer array
- *
- * @param peer the peer to add
- */
-static void
-peer_list_add (struct Peer *peer)
-{
-  if (peer->id >= GST_peer_list_size)
-    array_grow_large_enough (GST_peer_list, GST_peer_list_size, peer->id);
-  GNUNET_assert (NULL == GST_peer_list[peer->id]);
-  GST_peer_list[peer->id] = peer;
-}
-
-
-/**
- * Removes a the give peer from the peer array
- *
- * @param peer the peer to be removed
- */
-static void
-peer_list_remove (struct Peer *peer)
-{
-  unsigned int orig_size;
-  uint32_t id;
-
-  GST_peer_list[peer->id] = NULL;
-  orig_size = GST_peer_list_size;
-  while (GST_peer_list_size >= LIST_GROW_STEP)
-  {
-    for (id = GST_peer_list_size - 1;
-         (id >= GST_peer_list_size - LIST_GROW_STEP) && (id != UINT32_MAX);
-         id--)
-      if (NULL != GST_peer_list[id])
-        break;
-    if (id != ((GST_peer_list_size - LIST_GROW_STEP) - 1))
-      break;
-    GST_peer_list_size -= LIST_GROW_STEP;
-  }
-  if (orig_size == GST_peer_list_size)
-    return;
-  GST_peer_list =
-      GNUNET_realloc (GST_peer_list,
-                      sizeof (struct Peer *) * GST_peer_list_size);
-}
-
-
-/**
- * Finds the route with directly connected host as destination through which
- * the destination host can be reached
- *
- * @param host_id the id of the destination host
- * @return the route with directly connected destination host; NULL if no route
- *           is found
- */
-struct Route *
-GST_find_dest_route (uint32_t host_id)
-{
-  struct Route *route;
-
-  if (route_list_size <= host_id)
-    return NULL;
-  while (NULL != (route = route_list[host_id]))
-  {
-    if (route->thru == GST_context->host_id)
-      break;
-    host_id = route->thru;
-  }
-  return route;
-}
-
-
-/**
- * Routes message to a host given its host_id
- *
- * @param host_id the id of the destination host
- * @param msg the message to be routed
- */
-static void
-route_message (uint32_t host_id, const struct GNUNET_MessageHeader *msg)
-{
-  GNUNET_break (0);
-}
-
-
 /**
  * Send operation failure message to client
  *
@@ -451,9 +266,9 @@ GST_send_operation_fail_msg (struct GNUNET_SERVER_Client *client,
  * @param client the client to send the message to
  * @param operation_id the id of the operation which was successful
  */
-static void
-send_operation_success_msg (struct GNUNET_SERVER_Client *client,
-                            uint64_t operation_id)
+void
+GST_send_operation_success_msg (struct GNUNET_SERVER_Client *client,
+                                uint64_t operation_id)
 {
   struct GNUNET_TESTBED_GenericOperationSuccessEventMessage *msg;
   uint16_t msize;
@@ -468,9 +283,8 @@ send_operation_success_msg (struct GNUNET_SERVER_Client *client,
   GST_queue_message (client, &msg->header);
 }
 
-
 /**
- * Callback which will be called to after a host registration succeeded or failed
+ * Callback which will be called after a host registration succeeded or failed
  *
  * @param cls the handle to the slave at which the registration is completed
  * @param emsg the error message; NULL if host registration is successful
@@ -561,55 +375,6 @@ GST_queue_host_registration (struct Slave *slave,
 }
 
 
-/**
- * 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);
-
-
-/**
- * Completion callback for host registrations while forwarding Link Controller messages
- *
- * @param cls the LCFContext
- * @param emsg the error message; NULL if host registration is successful
- */
-static void
-lcf_proc_cc (void *cls, const char *emsg)
-{
-  struct LCFContext *lcf = cls;
-
-  GNUNET_assert (GNUNET_SCHEDULER_NO_TASK == lcf_proc_task_id);
-  switch (lcf->state)
-  {
-  case INIT:
-    if (NULL != emsg)
-      goto registration_error;
-    lcf->state = DELEGATED_HOST_REGISTERED;
-    lcf_proc_task_id = GNUNET_SCHEDULER_add_now (&lcf_proc_task, lcf);
-    break;
-  case DELEGATED_HOST_REGISTERED:
-    if (NULL != emsg)
-      goto registration_error;
-    lcf->state = SLAVE_HOST_REGISTERED;
-    lcf_proc_task_id = GNUNET_SCHEDULER_add_now (&lcf_proc_task, lcf);
-    break;
-  default:
-    GNUNET_assert (0);          /* Shouldn't reach here */
-  }
-  return;
-
-registration_error:
-  LOG (GNUNET_ERROR_TYPE_WARNING, "Host registration failed with message: %s\n",
-       emsg);
-  lcf->state = FINISHED;
-  lcf_proc_task_id = GNUNET_SCHEDULER_add_now (&lcf_proc_task, lcf);
-}
-
-
 /**
  * Callback to relay the reply msg of a forwarded operation back to the client
  *
@@ -649,8 +414,9 @@ GST_forwarded_operation_timeout (void *cls,
   struct ForwardedOperationContext *fopc = cls;
 
   GNUNET_TESTBED_forward_operation_msg_cancel_ (fopc->opc);
-  LOG (GNUNET_ERROR_TYPE_WARNING, "A forwarded operation has timed out\n");
-  GST_send_operation_fail_msg (fopc->client, fopc->operation_id, "Timeout");
+  LOG (GNUNET_ERROR_TYPE_DEBUG, "A forwarded operation has timed out\n");
+  GST_send_operation_fail_msg (fopc->client, fopc->operation_id,
+                               "A forwarded operation has timed out");
   GNUNET_SERVER_client_drop (fopc->client);
   GNUNET_CONTAINER_DLL_remove (fopcq_head, fopcq_tail, fopc);
   GNUNET_free (fopc);
@@ -658,236 +424,53 @@ GST_forwarded_operation_timeout (void *cls,
 
 
 /**
- * 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);
-
-
-/**
- * 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);
-  GST_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;
-  GST_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
+ * Parse service sharing specification line.
+ * Format is "[<service:share>] [<service:share>] ..."
  *
- * @param cls the LCFContext
- * @param tc the Task context from scheduler
+ * @param ss_str the spec string to be parsed
+ * @param cfg the configuration to use for shared services
+ * @return an array suitable to pass to GNUNET_TESTING_system_create().  NULL
+ *           upon empty service sharing specification.
  */
-static void
-lcf_proc_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
+static struct GNUNET_TESTING_SharedService *
+parse_shared_services (char *ss_str, struct GNUNET_CONFIGURATION_Handle *cfg)
 {
-  struct LCFContext *lcf = cls;
-  struct LCFContextQueue *lcfq;
+  struct GNUNET_TESTING_SharedService ss;
+  struct GNUNET_TESTING_SharedService *slist;
+  char service[256];
+  char *arg;
+  unsigned int n;
+#define GROW_SS                                 \
+  do {                                          \
+    GNUNET_array_grow (slist, n, n+1);                                  \
+    (void) memcpy (&slist[n - 1], &ss,                                  \
+                   sizeof (struct GNUNET_TESTING_SharedService));       \
+  } while (0)
 
-  lcf_proc_task_id = GNUNET_SCHEDULER_NO_TASK;
-  switch (lcf->state)
+  slist = NULL;
+  n = 0;
+  ss.cfg = cfg;
+  for (; NULL != (arg = strtok (ss_str, " ")); ss_str = NULL)
   {
-  case INIT:
-    if (GNUNET_NO ==
-        GNUNET_TESTBED_is_host_registered_ (GST_host_list
-                                            [lcf->delegated_host_id],
-                                            lcf->gateway->controller))
-    {
-      GST_queue_host_registration (lcf->gateway, lcf_proc_cc, lcf,
-                                   GST_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_ (GST_host_list[lcf->slave_host_id],
-                                            lcf->gateway->controller))
-    {
-      GST_queue_host_registration (lcf->gateway, lcf_proc_cc, lcf,
-                                   GST_host_list[lcf->slave_host_id]);
-    }
-    else
+    ss.service = NULL;
+    ss.share = 0;
+    if (2 != sscanf (arg, "%255[^:]:%u", service, &ss.share))
     {
-      lcf->state = SLAVE_HOST_REGISTERED;
-      lcf_proc_task_id = GNUNET_SCHEDULER_add_now (&lcf_proc_task, lcf);
+      LOG (GNUNET_ERROR_TYPE_WARNING, "Ignoring shared service spec: %s", arg);
+      continue;
     }
-    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);
-  }
-}
-
-
-/**
- * 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;
-    GST_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;
-    GST_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, GST_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
-  {
-    GST_send_operation_fail_msg (lcc->client, lcc->operation_id,
-                                 "Could not connect to delegated controller");
-    GNUNET_TESTBED_controller_stop (slave->controller_proc);
-    GST_slave_list[slave->host_id] = NULL;
-    GNUNET_free (slave);
-    slave = NULL;
+    LOG_DEBUG ("Will be sharing %s service among %u peers\n", service, ss.share);
+    ss.service = GNUNET_strdup (service);
+    GROW_SS;
   }
-
-clean_lcc:
-  if (NULL != lcc)
+  if (NULL != slist)
   {
-    if (NULL != lcc->client)
-    {
-      GNUNET_SERVER_receive_done (lcc->client, GNUNET_OK);
-      GNUNET_SERVER_client_drop (lcc->client);
-      lcc->client = NULL;
-    }
-    GNUNET_free (lcc);
+    /* Add trailing NULL block */
+    (void) memset (&ss, 0, sizeof (struct GNUNET_TESTING_SharedService));
+    GROW_SS;
   }
-  if (NULL != slave)
-    slave->lcc = NULL;
+  return slist;
+#undef GROW_SS
 }
 
 
@@ -905,6 +488,9 @@ handle_init (void *cls, struct GNUNET_SERVER_Client *client,
   const struct GNUNET_TESTBED_InitMessage *msg;
   struct GNUNET_TESTBED_Host *host;
   const char *controller_hostname;
+  char *ss_str;
+  struct GNUNET_TESTING_SharedService *ss;
+  unsigned int cnt;
   uint16_t msize;
 
   if (NULL != GST_context)
@@ -929,6 +515,16 @@ handle_init (void *cls, struct GNUNET_SERVER_Client *client,
     GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
     return;
   }
+  ss_str = NULL;
+  ss = NULL;
+  if (GNUNET_OK == GNUNET_CONFIGURATION_get_value_string (GST_config, "TESTBED",
+                                                          "SHARED_SERVICES",
+                                                          &ss_str))
+  {
+    ss = parse_shared_services (ss_str, GST_config);
+    GNUNET_free (ss_str);
+    ss_str = NULL;
+  }
   GST_context = GNUNET_malloc (sizeof (struct Context));
   GNUNET_SERVER_client_keep (client);
   GST_context->client = client;
@@ -937,10 +533,21 @@ handle_init (void *cls, struct GNUNET_SERVER_Client *client,
   LOG_DEBUG ("Our IP: %s\n", GST_context->master_ip);
   GST_context->system =
       GNUNET_TESTING_system_create ("testbed", GST_context->master_ip,
-                                    hostname);
+                                    hostname, ss);
+  if (NULL != ss)
+  {
+    for (cnt = 0; NULL != ss[cnt].service; cnt++)
+    {
+      ss_str = (char *) ss[cnt].service;
+      GNUNET_free (ss_str);
+    }
+    GNUNET_free (ss);
+    ss = NULL;
+  }
   host =
       GNUNET_TESTBED_host_create_with_id (GST_context->host_id,
-                                          GST_context->master_ip, NULL, 0);
+                                          GST_context->master_ip, NULL,
+                                          GST_config, 0);
   host_list_add (host);
   LOG_DEBUG ("Created master context with host ID: %u\n", GST_context->host_id);
   GNUNET_SERVER_receive_done (client, GNUNET_OK);
@@ -961,9 +568,11 @@ handle_add_host (void *cls, struct GNUNET_SERVER_Client *client,
   struct GNUNET_TESTBED_Host *host;
   const struct GNUNET_TESTBED_AddHostMessage *msg;
   struct GNUNET_TESTBED_HostConfirmedMessage *reply;
+  struct GNUNET_CONFIGURATION_Handle *host_cfg;
   char *username;
   char *hostname;
   char *emsg;
+  const void *ptr;
   uint32_t host_id;
   uint16_t username_length;
   uint16_t hostname_length;
@@ -972,37 +581,71 @@ handle_add_host (void *cls, struct GNUNET_SERVER_Client *client,
 
   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++;
+  if (msize <= sizeof (struct GNUNET_TESTBED_AddHostMessage))
+  {
+    GNUNET_break_op (0);
+    GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
+    return;
+  }
+  username_length = ntohs (msg->username_length);
+  hostname_length = ntohs (msg->hostname_length);
   /* msg must contain hostname */
-  GNUNET_assert (msize >
-                 (sizeof (struct GNUNET_TESTBED_AddHostMessage) +
-                  username_length + 1));
+  if ((msize <= (sizeof (struct GNUNET_TESTBED_AddHostMessage) +
+                 username_length))
+      || (0 == hostname_length))
+  {
+    GNUNET_break_op (0);
+    GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
+    return;
+  }
+  /* msg must contain configuration */
+  if (msize <= (sizeof (struct GNUNET_TESTBED_AddHostMessage) +
+                username_length + hostname_length))
+  {
+    GNUNET_break_op (0);
+    GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
+    return;
+  }
+  username = NULL;
+  hostname = NULL;
+  ptr = &msg[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);
+  {
+    username = GNUNET_malloc (username_length + 1);
+    strncpy (username, ptr, username_length);
+    ptr += username_length;
+  }
+  hostname = GNUNET_malloc (hostname_length + 1);
+  strncpy (hostname, ptr, hostname_length);
+  if (NULL == (host_cfg = GNUNET_TESTBED_extract_config_ (message)))
+  {
+    GNUNET_free_non_null (username);
+    GNUNET_free_non_null (hostname);
+    GNUNET_break_op (0);
+    GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
+    return;
+  }
   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)
+  if (NULL != username)
     LOG_DEBUG ("-------username: %s\n", username);
   else
-  {
-    LOG_DEBUG ("-------username: NULL\n");
-    username = NULL;
-  }
+    LOG_DEBUG ("-------username: <not given>\n");
   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);
+                                          host_cfg, ntohs (msg->ssh_port));
+  GNUNET_free_non_null (username);
+  GNUNET_free (hostname);
+  GNUNET_CONFIGURATION_destroy (host_cfg);
+  if (NULL == host)
+  {
+    GNUNET_break_op (0);
+    GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
+    return;
+  }
   reply_size = sizeof (struct GNUNET_TESTBED_HostConfirmedMessage);
   if (GNUNET_OK != host_list_add (host))
   {
@@ -1028,863 +671,41 @@ handle_add_host (void *cls, struct GNUNET_SERVER_Client *client,
 
 
 /**
- * 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
+ * Handler for GNUNET_MESSAGE_TYPE_TESTBED_GETSLAVECONFIG 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)
+handle_slave_get_config (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])
+  struct GNUNET_TESTBED_SlaveGetConfigurationMessage *msg;
+  struct Slave *slave;
+  struct GNUNET_TESTBED_SlaveConfiguration *reply;
+  const struct GNUNET_CONFIGURATION_Handle *cfg;
+  char *config;
+  char *xconfig;
+  size_t config_size;
+  size_t xconfig_size;
+  size_t reply_size;
+  uint64_t op_id;
+  uint32_t slave_id;
+
+  msg = (struct GNUNET_TESTBED_SlaveGetConfigurationMessage *) message;
+  slave_id = ntohl (msg->slave_id);
+  op_id = GNUNET_ntohll (msg->operation_id);
+  if ((GST_slave_list_size <= slave_id) || (NULL == GST_slave_list[slave_id]))
   {
-    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) != GST_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 == GST_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 == GST_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 >= GST_host_list_size) ||
-      (NULL == GST_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 >= GST_host_list_size) ||
-      (NULL == GST_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 == GST_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 < GST_slave_list_size) && (NULL != GST_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 < GST_slave_list_size) &&
-        (NULL != GST_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, GST_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
-        GST_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 (GST_context->master_ip,
-                                         GST_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 = GST_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 = GST_find_dest_route (slave_host_id);
-  GNUNET_assert (NULL != route);        /* because we add routes carefully */
-  GNUNET_assert (route->dest < GST_slave_list_size);
-  GNUNET_assert (NULL != GST_slave_list[route->dest]);
-  lcfq->lcf->state = INIT;
-  lcfq->lcf->operation_id = GNUNET_ntohll (msg->operation_id);
-  lcfq->lcf->gateway = GST_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);
-  GST_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_CREATE_PEER_SUCCESS)
-  {
-    GNUNET_assert (NULL != fopc->cls);
-    remote_peer = fopc->cls;
-    peer_list_add (remote_peer);
-  }
-  GST_forwarded_operation_reply_relay (fopc, msg);
-}
-
-
-/**
- * Function to destroy a peer
- *
- * @param peer the peer structure to destroy
- */
-void
-GST_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_GENERIC_OPERATION_SUCCESS ==
-      ntohs (msg->type))
-  {
-    remote_peer = fopc->cls;
-    GNUNET_assert (NULL != remote_peer);
-    remote_peer->destroy_flag = GNUNET_YES;
-    if (0 == remote_peer->reference_cnt)
-      GST_destroy_peer (remote_peer);
-  }
-  GST_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)
-  {
-    GST_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 == GST_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 (GST_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_CREATE_PEER_SUCCESS);
-    reply->peer_id = msg->peer_id;
-    reply->operation_id = msg->operation_id;
-    GST_queue_message (client, &reply->header);
-    GNUNET_SERVER_receive_done (client, GNUNET_OK);
-    return;
-  }
-
-  /* Forward peer create request */
-  route = GST_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 = GST_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;          //GST_slave_list[route->dest]->controller;
-  fo_ctxt->type = OP_PEER_CREATE;
-  fo_ctxt->opc =
-      GNUNET_TESTBED_forward_operation_msg_ (GST_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 ((GST_peer_list_size <= peer_id) || (NULL == GST_peer_list[peer_id]))
-  {
-    LOG (GNUNET_ERROR_TYPE_ERROR,
-         "Asked to destroy a non existent peer with id: %u\n", peer_id);
-    GST_send_operation_fail_msg (client, GNUNET_ntohll (msg->operation_id),
-                                 "Peer doesn't exist");
-    GNUNET_SERVER_receive_done (client, GNUNET_OK);
-    return;
-  }
-  peer = GST_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, &GST_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)
-    GST_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 >= GST_peer_list_size) || (NULL == GST_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 = GST_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,
-                                               &GST_forwarded_operation_reply_relay,
-                                               fopc);
-    fopc->timeout_task =
-        GNUNET_SCHEDULER_add_delayed (TIMEOUT, &GST_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))
-  {
-    GST_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_PEER_EVENT);
-  reply->header.size = htons (sizeof (struct GNUNET_TESTBED_PeerEventMessage));
-  reply->event_type = htonl (GNUNET_TESTBED_ET_PEER_START);
-  reply->host_id = htonl (GST_context->host_id);
-  reply->peer_id = msg->peer_id;
-  reply->operation_id = msg->operation_id;
-  GST_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 >= GST_peer_list_size) || (NULL == GST_peer_list[peer_id]))
-  {
-    GST_send_operation_fail_msg (client, GNUNET_ntohll (msg->operation_id),
-                                 "Peer not found");
-    GNUNET_SERVER_receive_done (client, GNUNET_OK);
-    return;
-  }
-  peer = GST_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,
-                                               &GST_forwarded_operation_reply_relay,
-                                               fopc);
-    fopc->timeout_task =
-        GNUNET_SCHEDULER_add_delayed (TIMEOUT, &GST_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);
-    GST_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_PEER_EVENT);
-  reply->header.size = htons (sizeof (struct GNUNET_TESTBED_PeerEventMessage));
-  reply->event_type = htonl (GNUNET_TESTBED_ET_PEER_STOP);
-  reply->host_id = htonl (GST_context->host_id);
-  reply->peer_id = msg->peer_id;
-  reply->operation_id = msg->operation_id;
-  GST_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 >= GST_peer_list_size) || (NULL == GST_peer_list[peer_id]))
-  {
-    GST_send_operation_fail_msg (client, GNUNET_ntohll (msg->operation_id),
-                                 "Peer not found");
-    GNUNET_SERVER_receive_done (client, GNUNET_OK);
-    return;
-  }
-  peer = GST_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,
-                                               &GST_forwarded_operation_reply_relay,
-                                               fopc);
-    fopc->timeout_task =
-        GNUNET_SCHEDULER_add_delayed (TIMEOUT, &GST_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 (GST_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_PEER_CONFIGURATION);
-  reply->peer_id = msg->peer_id;
-  reply->operation_id = msg->operation_id;
-  GNUNET_TESTING_peer_get_identity (GST_peer_list[peer_id]->details.local.peer,
-                                    &reply->peer_identity);
-  reply->config_size = htons ((uint16_t) c_size);
-  GST_queue_message (client, &reply->header);
-  GNUNET_SERVER_receive_done (client, GNUNET_OK);
-}
-
-
-/**
- * Handler for GNUNET_MESSAGE_TYPE_TESTBED_GETSLAVECONFIG messages
- *
- * @param cls NULL
- * @param client identification of the client
- * @param message the actual message
- */
-static void
-handle_slave_get_config (void *cls, struct GNUNET_SERVER_Client *client,
-                         const struct GNUNET_MessageHeader *message)
-{
-  struct GNUNET_TESTBED_SlaveGetConfigurationMessage *msg;
-  struct Slave *slave;
-  struct GNUNET_TESTBED_SlaveConfiguration *reply;
-  char *config;
-  char *xconfig;
-  size_t config_size;
-  size_t xconfig_size;
-  size_t reply_size;
-  uint64_t op_id;
-  uint32_t slave_id;
-
-  msg = (struct GNUNET_TESTBED_SlaveGetConfigurationMessage *) message;
-  slave_id = ntohl (msg->slave_id);
-  op_id = GNUNET_ntohll (msg->operation_id);
-  if ((GST_slave_list_size <= slave_id) || (NULL == GST_slave_list[slave_id]))
-  {
-    /* FIXME: Add forwardings for this type of message here.. */
-    GST_send_operation_fail_msg (client, op_id, "Slave not found");
-    GNUNET_SERVER_receive_done (client, GNUNET_OK);
+    /* FIXME: Add forwardings for this type of message here.. */
+    GST_send_operation_fail_msg (client, op_id, "Slave not found");
+    GNUNET_SERVER_receive_done (client, GNUNET_OK);
     return;
   }
   slave = GST_slave_list[slave_id];
-  if (NULL == slave->cfg)
-  {
-    GST_send_operation_fail_msg (client, op_id,
-                                 "Configuration not found (slave not started by me)");
-    GNUNET_SERVER_receive_done (client, GNUNET_OK);
-    return;
-  }
-  config = GNUNET_CONFIGURATION_serialize (slave->cfg, &config_size);
+  GNUNET_assert (NULL != (cfg = GNUNET_TESTBED_host_get_cfg_ (GST_host_list[slave->host_id])));
+  config = GNUNET_CONFIGURATION_serialize (cfg, &config_size);
   xconfig_size =
       GNUNET_TESTBED_compress_config_ (config, config_size, &xconfig);
   GNUNET_free (config);
@@ -1904,83 +725,13 @@ handle_slave_get_config (void *cls, struct GNUNET_SERVER_Client *client,
 
 
 /**
- * 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.
- */
-static int
-ss_map_free_iterator (void *cls, const struct GNUNET_HashCode *key, void *value)
-{
-  struct SharedService *ss = value;
-
-  GNUNET_assert (GNUNET_YES ==
-                 GNUNET_CONTAINER_multihashmap_remove (ss_map, key, value));
-  GNUNET_free (ss->name);
-  GNUNET_free (ss);
-  return GNUNET_YES;
-}
-
-
-/**
- * Iterator for freeing hash map entries in a slave's reghost_map
- *
- * @param cls handle to the slave
- * @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_free_iterator (void *cls, const struct GNUNET_HashCode *key,
-                       void *value)
-{
-  struct Slave *slave = cls;
-  struct RegisteredHostContext *rhc = value;
-  struct ForwardedOverlayConnectContext *focc;
-
-  GNUNET_assert (GNUNET_YES ==
-                 GNUNET_CONTAINER_multihashmap_remove (slave->reghost_map, key,
-                                                       value));
-  while (NULL != (focc = rhc->focc_dll_head))
-  {
-    GNUNET_CONTAINER_DLL_remove (rhc->focc_dll_head, rhc->focc_dll_tail, focc);
-    GST_cleanup_focc (focc);
-  }
-  if (NULL != rhc->sub_op)
-    GNUNET_TESTBED_operation_done (rhc->sub_op);
-  if (NULL != rhc->client)
-    GNUNET_SERVER_client_drop (rhc->client);
-  GNUNET_free (value);
-  return GNUNET_YES;
-}
-
-
-/**
- * Task to clean up and shutdown nicely
- *
- * @param cls NULL
- * @param tc the TaskContext from scheduler
+ * Clears the forwarded operations queue
  */
-static void
-shutdown_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
+void
+GST_clear_fopcq ()
 {
-  struct LCFContextQueue *lcfq;
   struct ForwardedOperationContext *fopc;
-  struct MessageQueue *mq_entry;
-  uint32_t id;
 
-  shutdown_task_id = GNUNET_SCHEDULER_NO_TASK;
-  LOG (GNUNET_ERROR_TYPE_DEBUG, "Shutting down testbed service\n");
-  (void) GNUNET_CONTAINER_multihashmap_iterate (ss_map, &ss_map_free_iterator,
-                                                NULL);
-  GNUNET_CONTAINER_multihashmap_destroy (ss_map);
-  /* cleanup any remaining forwarded operations */
   while (NULL != (fopc = fopcq_head))
   {
     GNUNET_CONTAINER_DLL_remove (fopcq_head, fopcq_tail, fopc);
@@ -1993,6 +744,16 @@ shutdown_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
     case OP_PEER_CREATE:
       GNUNET_free (fopc->cls);
       break;
+    case OP_SHUTDOWN_PEERS:
+      {
+        struct HandlerContext_ShutdownPeers *hc = fopc->cls;
+
+        GNUNET_assert (0 < hc->nslaves);
+        hc->nslaves--;
+        if (0 == hc->nslaves)
+          GNUNET_free (hc);
+      }
+      break;
     case OP_PEER_START:
     case OP_PEER_STOP:
     case OP_PEER_DESTROY:
@@ -2000,95 +761,51 @@ shutdown_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
     case OP_OVERLAY_CONNECT:
     case OP_LINK_CONTROLLERS:
     case OP_GET_SLAVE_CONFIG:
+    case OP_MANAGE_SERVICE:
+    case OP_PEER_RECONFIGURE:
       break;
     case OP_FORWARDED:
       GNUNET_assert (0);
     };
     GNUNET_free (fopc);
   }
-  if (NULL != lcfq_head)
-  {
-    if (GNUNET_SCHEDULER_NO_TASK != lcf_proc_task_id)
-    {
-      GNUNET_SCHEDULER_cancel (lcf_proc_task_id);
-      lcf_proc_task_id = GNUNET_SCHEDULER_NO_TASK;
-    }
-  }
-  GNUNET_assert (GNUNET_SCHEDULER_NO_TASK == lcf_proc_task_id);
-  for (lcfq = lcfq_head; NULL != lcfq; lcfq = lcfq_head)
-  {
-    GNUNET_free (lcfq->lcf->msg);
-    GNUNET_free (lcfq->lcf);
-    GNUNET_CONTAINER_DLL_remove (lcfq_head, lcfq_tail, lcfq);
-    GNUNET_free (lcfq);
-  }
+}
+
+
+/**
+ * Task to clean up and shutdown nicely
+ *
+ * @param cls NULL
+ * @param tc the TaskContext from scheduler
+ */
+static void
+shutdown_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
+{
+  struct MessageQueue *mq_entry;
+  uint32_t id;
+
+  shutdown_task_id = GNUNET_SCHEDULER_NO_TASK;
+  LOG_DEBUG ("Shutting down testbed service\n");
+  /* cleanup any remaining forwarded operations */
+  GST_clear_fopcq ();
+  GST_free_lcfq ();
+  GST_free_mctxq ();
   GST_free_occq ();
   GST_free_roccq ();
+  GST_free_nccq ();
+  GST_neighbour_list_clean();
+  GST_free_prcq ();
   /* Clear peer list */
-  for (id = 0; id < GST_peer_list_size; id++)
-    if (NULL != GST_peer_list[id])
-    {
-      /* If destroy flag is set it means that this peer should have been
-       * destroyed by a context which we destroy before */
-      GNUNET_break (GNUNET_NO == GST_peer_list[id]->destroy_flag);
-      /* counter should be zero as we free all contexts before */
-      GNUNET_break (0 == GST_peer_list[id]->reference_cnt);
-      if ((GNUNET_NO == GST_peer_list[id]->is_remote) &&
-          (GNUNET_YES == GST_peer_list[id]->details.local.is_running))
-        GNUNET_TESTING_peer_kill (GST_peer_list[id]->details.local.peer);
-    }
-  for (id = 0; id < GST_peer_list_size; id++)
-    if (NULL != GST_peer_list[id])
-    {
-      if (GNUNET_NO == GST_peer_list[id]->is_remote)
-      {
-        if (GNUNET_YES == GST_peer_list[id]->details.local.is_running)
-          GNUNET_TESTING_peer_wait (GST_peer_list[id]->details.local.peer);
-        GNUNET_TESTING_peer_destroy (GST_peer_list[id]->details.local.peer);
-        GNUNET_CONFIGURATION_destroy (GST_peer_list[id]->details.local.cfg);
-      }
-      GNUNET_free (GST_peer_list[id]);
-    }
-  GNUNET_free_non_null (GST_peer_list);
+  GST_destroy_peers ();
+  /* Clear route list */
+  GST_route_list_clear ();
+  /* Clear GST_slave_list */
+  GST_slave_list_clear ();
   /* Clear host list */
   for (id = 0; id < GST_host_list_size; id++)
     if (NULL != GST_host_list[id])
       GNUNET_TESTBED_host_destroy (GST_host_list[id]);
   GNUNET_free_non_null (GST_host_list);
-  /* Clear route list */
-  for (id = 0; id < route_list_size; id++)
-    if (NULL != route_list[id])
-      GNUNET_free (route_list[id]);
-  GNUNET_free_non_null (route_list);
-  /* Clear GST_slave_list */
-  for (id = 0; id < GST_slave_list_size; id++)
-    if (NULL != GST_slave_list[id])
-    {
-      struct HostRegistration *hr_entry;
-
-      while (NULL != (hr_entry = GST_slave_list[id]->hr_dll_head))
-      {
-        GNUNET_CONTAINER_DLL_remove (GST_slave_list[id]->hr_dll_head,
-                                     GST_slave_list[id]->hr_dll_tail, hr_entry);
-        GNUNET_free (hr_entry);
-      }
-      if (NULL != GST_slave_list[id]->rhandle)
-        GNUNET_TESTBED_cancel_registration (GST_slave_list[id]->rhandle);
-      (void)
-          GNUNET_CONTAINER_multihashmap_iterate (GST_slave_list
-                                                 [id]->reghost_map,
-                                                 reghost_free_iterator,
-                                                 GST_slave_list[id]);
-      GNUNET_CONTAINER_multihashmap_destroy (GST_slave_list[id]->reghost_map);
-      if (NULL != GST_slave_list[id]->cfg)
-        GNUNET_CONFIGURATION_destroy (GST_slave_list[id]->cfg);
-      if (NULL != GST_slave_list[id]->controller)
-        GNUNET_TESTBED_controller_disconnect (GST_slave_list[id]->controller);
-      if (NULL != GST_slave_list[id]->controller_proc)
-        GNUNET_TESTBED_controller_stop (GST_slave_list[id]->controller_proc);
-      GNUNET_free (GST_slave_list[id]);
-    }
-  GNUNET_free_non_null (GST_slave_list);
   if (NULL != GST_context)
   {
     GNUNET_free_non_null (GST_context->master_ip);
@@ -2108,11 +825,14 @@ shutdown_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
     GNUNET_free (mq_entry);
   }
   GNUNET_free_non_null (hostname);
-  GNUNET_CONFIGURATION_destroy (our_config);
   /* Free hello cache */
   GST_cache_clear ();
+  GST_connection_pool_destroy ();
   GNUNET_TESTBED_operation_queue_destroy_ (GST_opq_openfds);
   GST_opq_openfds = NULL;
+  GST_stats_destroy ();
+  GST_barriers_destroy ();
+  GNUNET_CONFIGURATION_destroy (GST_config);
 }
 
 
@@ -2154,33 +874,45 @@ testbed_run (void *cls, struct GNUNET_SERVER_Handle *server,
   static const struct GNUNET_SERVER_MessageHandler message_handlers[] = {
     {&handle_init, NULL, GNUNET_MESSAGE_TYPE_TESTBED_INIT, 0},
     {&handle_add_host, NULL, GNUNET_MESSAGE_TYPE_TESTBED_ADD_HOST, 0},
-    {&handle_configure_shared_service, NULL,
-     GNUNET_MESSAGE_TYPE_TESTBED_SHARE_SERVICE, 0},
-    {&handle_link_controllers, NULL,
-     GNUNET_MESSAGE_TYPE_TESTBED_LINK_CONTROLLERS, 0},
-    {&handle_peer_create, NULL, GNUNET_MESSAGE_TYPE_TESTBED_CREATE_PEER, 0},
-    {&handle_peer_destroy, NULL, GNUNET_MESSAGE_TYPE_TESTBED_DESTROY_PEER,
+    {&GST_handle_link_controllers, NULL,
+     GNUNET_MESSAGE_TYPE_TESTBED_LINK_CONTROLLERS,
+     sizeof (struct GNUNET_TESTBED_ControllerLinkRequest)},
+    {&GST_handle_peer_create, NULL, GNUNET_MESSAGE_TYPE_TESTBED_CREATE_PEER, 0},
+    {&GST_handle_peer_destroy, NULL, GNUNET_MESSAGE_TYPE_TESTBED_DESTROY_PEER,
      sizeof (struct GNUNET_TESTBED_PeerDestroyMessage)},
-    {&handle_peer_start, NULL, GNUNET_MESSAGE_TYPE_TESTBED_START_PEER,
+    {&GST_handle_peer_start, NULL, GNUNET_MESSAGE_TYPE_TESTBED_START_PEER,
      sizeof (struct GNUNET_TESTBED_PeerStartMessage)},
-    {&handle_peer_stop, NULL, GNUNET_MESSAGE_TYPE_TESTBED_STOP_PEER,
+    {&GST_handle_peer_stop, NULL, GNUNET_MESSAGE_TYPE_TESTBED_STOP_PEER,
      sizeof (struct GNUNET_TESTBED_PeerStopMessage)},
-    {&handle_peer_get_config, NULL,
-     GNUNET_MESSAGE_TYPE_TESTBED_GET_PEER_CONFIGURATION,
+    {&GST_handle_peer_get_config, NULL,
+     GNUNET_MESSAGE_TYPE_TESTBED_GET_PEER_INFORMATION,
      sizeof (struct GNUNET_TESTBED_PeerGetConfigurationMessage)},
     {&GST_handle_overlay_connect, NULL,
      GNUNET_MESSAGE_TYPE_TESTBED_OVERLAY_CONNECT,
      sizeof (struct GNUNET_TESTBED_OverlayConnectMessage)},
     {&GST_handle_remote_overlay_connect, NULL,
      GNUNET_MESSAGE_TYPE_TESTBED_REMOTE_OVERLAY_CONNECT, 0},
-    {handle_slave_get_config, NULL,
+    {&GST_handle_manage_peer_service, NULL,
+     GNUNET_MESSAGE_TYPE_TESTBED_MANAGE_PEER_SERVICE, 0},
+    {&handle_slave_get_config, NULL,
      GNUNET_MESSAGE_TYPE_TESTBED_GET_SLAVE_CONFIGURATION,
      sizeof (struct GNUNET_TESTBED_SlaveGetConfigurationMessage)},
-    {NULL}
+    {&GST_handle_shutdown_peers, NULL, GNUNET_MESSAGE_TYPE_TESTBED_SHUTDOWN_PEERS,
+     sizeof (struct GNUNET_TESTBED_ShutdownPeersMessage)},
+    {&GST_handle_peer_reconfigure, NULL,
+     GNUNET_MESSAGE_TYPE_TESTBED_RECONFIGURE_PEER, 0},
+    {&GST_handle_barrier_init, NULL,
+     GNUNET_MESSAGE_TYPE_TESTBED_BARRIER_INIT, 0},
+    {&GST_handle_barrier_cancel, NULL,
+     GNUNET_MESSAGE_TYPE_TESTBED_BARRIER_CANCEL, 0},
+    {&GST_handle_barrier_status, NULL,
+     GNUNET_MESSAGE_TYPE_TESTBED_BARRIER_STATUS, 0},
+    {NULL, NULL, 0, 0}
   };
   char *logfile;
   unsigned long long num;
 
+  LOG_DEBUG ("Starting testbed\n");
   if (GNUNET_OK ==
       GNUNET_CONFIGURATION_get_value_filename (cfg, "TESTBED", "LOG_FILE",
                                                &logfile))
@@ -2190,26 +922,33 @@ testbed_run (void *cls, struct GNUNET_SERVER_Handle *server,
   }
   GNUNET_assert (GNUNET_OK ==
                  GNUNET_CONFIGURATION_get_value_number (cfg, "TESTBED",
-                                                        "HELLO_CACHE_SIZE",
-                                                        &num));
+                                                        "CACHE_SIZE", &num));
   GST_cache_init ((unsigned int) num);
+  GST_connection_pool_init ((unsigned int) num);
   GNUNET_assert (GNUNET_OK ==
                  GNUNET_CONFIGURATION_get_value_number (cfg, "TESTBED",
                                                         "MAX_OPEN_FDS", &num));
-  GST_opq_openfds = GNUNET_TESTBED_operation_queue_create_ ((unsigned int) num);
+  GST_opq_openfds = GNUNET_TESTBED_operation_queue_create_
+      (OPERATION_QUEUE_TYPE_FIXED, (unsigned int) num);
+  GNUNET_assert (GNUNET_OK ==
+                 GNUNET_CONFIGURATION_get_value_time (cfg, "TESTBED",
+                                                      "OPERATION_TIMEOUT",
+                                                      (struct
+                                                       GNUNET_TIME_Relative *)
+                                                      &GST_timeout));
   GNUNET_assert (GNUNET_OK ==
                  GNUNET_CONFIGURATION_get_value_string (cfg, "testbed",
                                                         "HOSTNAME", &hostname));
-  our_config = GNUNET_CONFIGURATION_dup (cfg);
+  GST_config = GNUNET_CONFIGURATION_dup (cfg);
   GNUNET_SERVER_add_handlers (server, message_handlers);
   GNUNET_SERVER_disconnect_notify (server, &client_disconnect_cb, NULL);
-  ss_map = GNUNET_CONTAINER_multihashmap_create (5, GNUNET_NO);
   shutdown_task_id =
       GNUNET_SCHEDULER_add_delayed_with_priority (GNUNET_TIME_UNIT_FOREVER_REL,
                                                   GNUNET_SCHEDULER_PRIORITY_IDLE,
                                                   &shutdown_task, NULL);
   LOG_DEBUG ("Testbed startup complete\n");
-  event_mask = 1LL << GNUNET_TESTBED_ET_OPERATION_FINISHED;
+  GST_stats_init (GST_config);
+  GST_barriers_init (GST_config);
 }