leak
[oweals/gnunet.git] / src / testing / testing_group.c
index 84260924b5b0072bbdc0f71f46e6b7e9e0c7f2d7..033ab7d5edc00315a63d50a43ba8eaeddc1d032c 100644 (file)
@@ -1,21 +1,21 @@
 /*
     This file is part of GNUnet
     (C) 2008, 2009 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 3, or (at your
     option) any later version.
-
     GNUnet is distributed in the hope that it will be useful, but
     WITHOUT ANY WARRANTY; without even the implied warranty of
     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     General Public License for more details.
-
     You should have received a copy of the GNU General Public License
     along with GNUnet; see the file COPYING.  If not, write to the
     Free Software Foundation, Inc., 59 Temple Place - Suite 330,
     Boston, MA 02111-1307, USA.
+ This file is part of GNUnet
+ (C) 2008, 2009 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 3, or (at your
+ option) any later version.
+
+ GNUnet is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with GNUnet; see the file COPYING.  If not, write to the
+ Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA.
  */
 
 /**
  *
  */
 #include "platform.h"
+#include "gnunet_constants.h"
 #include "gnunet_arm_service.h"
 #include "gnunet_testing_lib.h"
 #include "gnunet_core_service.h"
 
 #define VERBOSE_TESTING GNUNET_NO
 
+#define VERBOSE_TOPOLOGY GNUNET_NO
+
 #define DEBUG_CHURN GNUNET_NO
 
+#define USE_START_HELPER GNUNET_YES
+
+#define OLD 1
+
+/* Before connecting peers, send all of the HELLOs */
+#define USE_SEND_HELLOS GNUNET_NO
+
+#define TOPOLOGY_HACK GNUNET_YES
+
+
 /**
  * Lowest port used for GNUnet testing.  Should be high enough to not
  * conflict with other applications running on the hosts but be low
  * enough to not conflict with client-ports (typically starting around
  * 32k).
  */
-#define LOW_PORT 10000
+#define LOW_PORT 12000
 
 /**
  * Highest port used for GNUnet testing.  Should be low enough to not
  */
 #define HIGH_PORT 56000
 
-#define MAX_OUTSTANDING_CONNECTIONS 10
+/* Maximum time to delay connect attempt */
+#define MAX_CONNECT_DELAY 300
 
-#define MAX_CONCURRENT_HOSTKEYS 10
-
-#define MAX_CONCURRENT_STARTING 10
+/**
+ * Which list of peers do we need to modify?
+ */
+enum PeerLists
+{
+  /** Modify allowed peers */
+  ALLOWED,
 
-#define MAX_CONCURRENT_SHUTDOWN 10
+  /** Modify connect peers */
+  CONNECT,
 
-#define CONNECT_TIMEOUT GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 300)
+  /** Modify blacklist peers */
+  BLACKLIST,
 
-#define CONNECT_ATTEMPTS 8
+  /** Modify workingset peers */
+  WORKING_SET
+};
 
 /**
  * Prototype of a function called whenever two peers would be connected
  * in a certain topology.
  */
-typedef int (*GNUNET_TESTING_ConnectionProcessor)(struct GNUNET_TESTING_PeerGroup *pg, 
-                                                 unsigned int first,
-                                                 unsigned int second);
-
+typedef unsigned int
+(*GNUNET_TESTING_ConnectionProcessor)(struct GNUNET_TESTING_PeerGroup * pg,
+                                      unsigned int first, unsigned int second,
+                                      enum PeerLists list, unsigned int check);
 
 /**
  * Context for handling churning a peer group
  */
 struct ChurnContext
 {
+  /**
+   * The peergroup we are dealing with.
+   */
+  struct GNUNET_TESTING_PeerGroup *pg;
+
   /**
    * Callback used to notify of churning finished
    */
@@ -94,7 +121,7 @@ struct ChurnContext
    * Number of peers that still need to be stopped
    */
   unsigned int num_to_stop;
+
   /**
    * Number of peers that failed to start
    */
@@ -135,9 +162,42 @@ struct RestartContext
 
 };
 
+struct SendHelloContext
+{
+  /**
+   * Global handle to the peer group.
+   */
+  struct GNUNET_TESTING_PeerGroup *pg;
+
+  /**
+   * The data about this specific peer.
+   */
+  struct PeerData *peer;
+
+  /**
+   * The next HELLO that needs sent to this peer.
+   */
+  struct PeerConnection *peer_pos;
+
+  /**
+   * Are we connected to CORE yet?
+   */
+  unsigned int core_ready;
+
+  /**
+   * How many attempts should we make for failed connections?
+   */
+  unsigned int connect_attempts;
+
+  /**
+   * Task for scheduling core connect requests to be sent.
+   */
+  GNUNET_SCHEDULER_TaskIdentifier core_connect_task;
+};
 
 struct ShutdownContext
 {
+  struct GNUNET_TESTING_PeerGroup *pg;
   /**
    * Total peers to wait for
    */
@@ -208,7 +268,6 @@ struct PeerRestartContext
   struct GNUNET_TESTING_Daemon *daemon;
 };
 
-
 struct CreateTopologyContext
 {
 
@@ -223,18 +282,38 @@ struct CreateTopologyContext
   void *cls;
 };
 
+enum States
+{
+  /** Waiting to read number of peers */
+  NUM_PEERS,
+
+  /** Should find next peer index */
+  PEER_INDEX,
+
+  /** Should find colon */
+  COLON,
+
+  /** Should read other peer index, space, or endline */
+  OTHER_PEER_INDEX
+};
+
 #if OLD
 struct PeerConnection
 {
+  /**
+   * Doubly Linked list
+   */
+  struct PeerConnection *prev;
+
   /*
-   * Linked list
+   * Doubly Linked list
    */
   struct PeerConnection *next;
 
   /*
-   * Pointer to daemon handle
+   * Index of daemon in pg->peers
    */
-  struct GNUNET_TESTING_Daemon *daemon;
+  uint32_t index;
 
 };
 #endif
@@ -282,6 +361,11 @@ struct InternalStartContext
    */
   const char *username;
 
+  /**
+   * Pointer to starting memory location of a hostkey
+   */
+  const char *hostkey;
+
   /**
    * Port to use for ssh.
    */
@@ -291,6 +375,11 @@ struct InternalStartContext
 
 struct ChurnRestartContext
 {
+  /**
+   * PeerGroup that we are working with.
+   */
+  struct GNUNET_TESTING_PeerGroup *pg;
+
   /**
    * Number of restarts currently in flight.
    */
@@ -307,6 +396,23 @@ struct ChurnRestartContext
   struct GNUNET_TIME_Relative timeout;
 };
 
+struct OutstandingSSH
+{
+  struct OutstandingSSH *next;
+
+  struct OutstandingSSH *prev;
+
+  /**
+   * Number of current ssh connections.
+   */
+  uint32_t outstanding;
+
+  /**
+   * The hostname of this peer.
+   */
+  const char *hostname;
+};
+
 /**
  * Data we keep per peer.
  */
@@ -330,6 +436,48 @@ struct PeerData
    */
   struct GNUNET_TESTING_PeerGroup *pg;
 
+#if OLD
+  /**
+   * Linked list of allowed peer connections.
+   */
+  struct PeerConnection *allowed_peers_head;
+
+  /**
+   * Linked list of allowed peer connections.
+   */
+  struct PeerConnection *allowed_peers_tail;
+
+  /**
+   * Linked list of blacklisted peer connections.
+   */
+  struct PeerConnection *blacklisted_peers_head;
+
+  /**
+   * Linked list of blacklisted peer connections.
+   */
+  struct PeerConnection *blacklisted_peers_tail;
+
+  /**
+   * Linked list of connect peer connections.
+   */
+  struct PeerConnection *connect_peers_head;
+
+  /**
+   * Linked list of connect peer connections.
+   */
+  struct PeerConnection *connect_peers_tail;
+
+  /**
+   * Linked list of connect peer connections.
+   */
+  struct PeerConnection *connect_peers_working_set_head;
+
+  /**
+   * Linked list of connect peer connections.
+   */
+  struct PeerConnection *connect_peers_working_set_tail;
+
+#else
   /**
    * Hash map of allowed peer connections (F2F created topology)
    */
@@ -349,6 +497,7 @@ struct PeerData
    * Temporary hash map of peer connections
    */
   struct GNUNET_CONTAINER_MultiHashMap *connect_peers_working_set;
+#endif
 
   /**
    * Temporary variable for topology creation, should be reset before
@@ -363,9 +512,8 @@ struct PeerData
   struct InternalStartContext internal_context;
 };
 
-
 /**
- * Data we keep per host.
+ * Linked list of per-host data.
  */
 struct HostData
 {
@@ -393,6 +541,11 @@ struct HostData
 
 struct TopologyIterateContext
 {
+  /**
+   * The peergroup we are working with.
+   */
+  struct GNUNET_TESTING_PeerGroup *pg;
+
   /**
    * Callback for notifying of two connected peers.
    */
@@ -421,6 +574,11 @@ struct TopologyIterateContext
 
 struct StatsIterateContext
 {
+  /**
+   * The peergroup that we are dealing with.
+   */
+  struct GNUNET_TESTING_PeerGroup *pg;
+
   /**
    * Continuation to call once all stats information has been retrieved.
    */
@@ -473,16 +631,49 @@ struct StatsCoreContext
   struct GNUNET_STATISTICS_GetHandle *stats_get_handle;
 };
 
+struct ConnectTopologyContext
+{
+  /**
+   * How many connections are left to create.
+   */
+  unsigned int remaining_connections;
+
+  /**
+   * Handle to group of peers.
+   */
+  struct GNUNET_TESTING_PeerGroup *pg;
+
+  /**
+   * How long to try this connection before timing out.
+   */
+  struct GNUNET_TIME_Relative connect_timeout;
+
+  /**
+   * How many times to retry connecting the two peers.
+   */
+  unsigned int connect_attempts;
+
+  /**
+   * Temp value set for each iteration.
+   */
+  //struct PeerData *first;
+
+  /**
+   * Notification that all peers are connected.
+   */
+  GNUNET_TESTING_NotifyCompletion notify_connections_done;
+
+  /**
+   * Closure for notify.
+   */
+  void *notify_cls;
+};
+
 /**
  * Handle to a group of GNUnet peers.
  */
 struct GNUNET_TESTING_PeerGroup
 {
-  /**
-   * Our scheduler.
-   */
-  struct GNUNET_SCHEDULER_Handle *sched;
-
   /**
    * Configuration template.
    */
@@ -509,11 +700,15 @@ struct GNUNET_TESTING_PeerGroup
   void *notify_connection_cls;
 
   /**
-   * NULL-terminated array of information about
-   * hosts.
+   * Array of information about hosts.
    */
   struct HostData *hosts;
 
+  /**
+   * Number of hosts (size of HostData)
+   */
+  unsigned int num_hosts;
+
   /**
    * Array of "total" peers.
    */
@@ -538,150 +733,466 @@ struct GNUNET_TESTING_PeerGroup
    * How many peers have already been started?
    */
   unsigned int started;
+
+  /**
+   * Number of possible connections to peers
+   * at a time.
+   */
+  unsigned int max_outstanding_connections;
+
+  /**
+   * Number of ssh connections to peers (max).
+   */
+  unsigned int max_concurrent_ssh;
+
+  /**
+   * Number of connects we are waiting on, allows us to rate limit
+   * connect attempts.
+   */
+  unsigned int outstanding_connects;
+
+  /**
+   * Number of HELLOs we have yet to send.
+   */
+  unsigned int remaining_hellos;
+
+  /**
+   * How many connects have already been scheduled?
+   */
+  unsigned int total_connects_scheduled;
+
+  /**
+   * Hostkeys loaded from a file.
+   */
+  char *hostkey_data;
+
+  /**
+   * Head of DLL to keep track of the number of outstanding
+   * ssh connections per peer.
+   */
+  struct OutstandingSSH *ssh_head;
+
+  /**
+   * Tail of DLL to keep track of the number of outstanding
+   * ssh connections per peer.
+   */
+  struct OutstandingSSH *ssh_tail;
+
+  /**
+   * Stop scheduling peers connecting.
+   */
+  unsigned int stop_connects;
+
+  /**
+   * Connection context for peer group.
+   */
+  struct ConnectTopologyContext ct_ctx;
 };
 
 struct UpdateContext
 {
+  /**
+   * The altered configuration.
+   */
   struct GNUNET_CONFIGURATION_Handle *ret;
+
+  /**
+   * The original configuration to alter.
+   */
   const struct GNUNET_CONFIGURATION_Handle *orig;
+
+  /**
+   * The hostname that this peer will run on.
+   */
   const char *hostname;
+
+  /**
+   * The next possible port to assign.
+   */
   unsigned int nport;
+
+  /**
+   * Unique number for unix domain sockets.
+   */
   unsigned int upnum;
+
+  /**
+   * Unique number for this peer/host to offset
+   * things that are grouped by host.
+   */
   unsigned int fdnum;
 };
 
-
 struct ConnectContext
 {
-  struct GNUNET_TESTING_Daemon *first;
+  /**
+   * Index of peer to connect second to.
+   */
+  uint32_t first_index;
 
-  struct GNUNET_TESTING_Daemon *second;
+  /**
+   * Index of peer to connect first to.
+   */
+  uint32_t second_index;
 
-  struct GNUNET_TESTING_PeerGroup *pg;
-};
+  /**
+   * Higher level topology connection context.
+   */
+  struct ConnectTopologyContext *ct_ctx;
 
-/**
- * Convert unique ID to hash code.
- *
- * @param uid unique ID to convert
- * @param hash set to uid (extended with zeros)
- */
-static void
-hash_from_uid (uint32_t uid,
-               GNUNET_HashCode *hash)
-{
-  memset (hash, 0, sizeof(GNUNET_HashCode));
-  *((uint32_t*)hash) = uid;
-}
+  /**
+   * Whether this connection has been accounted for in the schedule_connect call.
+   */
+  int counted;
+};
 
-/**
- * Convert hash code to unique ID.
- *
- * @param uid unique ID to convert
- * @param hash set to uid (extended with zeros)
- */
-static void
-uid_from_hash (const GNUNET_HashCode *hash, uint32_t *uid)
+struct UnblacklistContext
 {
-  memcpy (uid, hash, sizeof(uint32_t));
-}
+  /**
+   * The peergroup
+   */
+  struct GNUNET_TESTING_PeerGroup *pg;
 
-/**
- * Number of connects we are waiting on, allows us to rate limit
- * connect attempts.
- */
-static int outstanding_connects;
+  /**
+   * uid of the first peer
+   */
+  uint32_t first_uid;
+};
 
-/**
- * Get a topology from a string input.
- *
- * @param topology where to write the retrieved topology
- * @param topology_string The string to attempt to
- *        get a configuration value from
- * @return GNUNET_YES if topology string matched a
- *         known topology, GNUNET_NO if not
- */
-int
-GNUNET_TESTING_topology_get(enum GNUNET_TESTING_Topology *topology, char * topology_string)
+struct RandomContext
 {
   /**
-   * Strings representing topologies in enum
+   * The peergroup
    */
-  static const char * topology_strings[] =
-    {
-      /**
-       * A clique (everyone connected to everyone else).
-       */
-      "CLIQUE",
-      
-      /**
-       * Small-world network (2d torus plus random links).
-       */
-      "SMALL_WORLD",
-      
-      /**
-       * Small-world network (ring plus random links).
-       */
-      "SMALL_WORLD_RING",
-      
-      /**
-       * Ring topology.
-       */
-      "RING",
-      
-      /**
-       * 2-d torus.
-       */
-      "2D_TORUS",
-      
-      /**
-       * Random graph.
-       */
-      "ERDOS_RENYI",
-      
-      /**
-       * Certain percentage of peers are unable to communicate directly
-       * replicating NAT conditions
-       */
-      "INTERNAT",
-      
-      /**
-       * Scale free topology.
-       */
-      "SCALE_FREE",
-      
-      /**
-       * Straight line topology.
-       */
-      "LINE",
-      
-      /**
-       * All peers are disconnected.
-       */
-      "NONE",
-
-      NULL
-    };
+  struct GNUNET_TESTING_PeerGroup *pg;
 
-  int curr = 0;
-  if (topology_string == NULL)
-    return GNUNET_NO;
-  while (topology_strings[curr] != NULL)
-    {
-      if (strcasecmp(topology_strings[curr], topology_string) == 0)
-       {
-         *topology = curr;
-         return GNUNET_YES;
-       }
-      curr++;
-    }
-  *topology = GNUNET_TESTING_TOPOLOGY_NONE;
-  return GNUNET_NO;
-}
+  /**
+   * uid of the first peer
+   */
+  uint32_t first_uid;
 
+  /**
+   * Peer data for first peer.
+   */
+  struct PeerData *first;
 
-/**
- * Get connect topology option from string input.
+  /**
+   * Random percentage to use
+   */
+  double percentage;
+};
+
+struct MinimumContext
+{
+  /**
+   * The peergroup
+   */
+  struct GNUNET_TESTING_PeerGroup *pg;
+
+  /**
+   * uid of the first peer
+   */
+  uint32_t first_uid;
+
+  /**
+   * Peer data for first peer.
+   */
+  struct PeerData *first;
+
+  /**
+   * Number of conns per peer
+   */
+  unsigned int num_to_add;
+
+  /**
+   * Permuted array of all possible connections.  Only add the Nth
+   * peer if it's in the Nth position.
+   */
+  unsigned int *pg_array;
+
+  /**
+   * What number is the current element we are iterating over?
+   */
+  unsigned int current;
+};
+
+struct DFSContext
+{
+  /**
+   * The peergroup
+   */
+  struct GNUNET_TESTING_PeerGroup *pg;
+
+  /**
+   * uid of the first peer
+   */
+  uint32_t first_uid;
+
+  /**
+   * uid of the second peer
+   */
+  uint32_t second_uid;
+
+  /**
+   * Peer data for first peer.
+   */
+  struct PeerData *first;
+
+  /**
+   * Which peer has been chosen as the one to add?
+   */
+  unsigned int chosen;
+
+  /**
+   * What number is the current element we are iterating over?
+   */
+  unsigned int current;
+};
+
+/**
+ * Simple struct to keep track of progress, and print a
+ * nice little percentage meter for long running tasks.
+ */
+struct ProgressMeter
+{
+  unsigned int total;
+
+  unsigned int modnum;
+
+  unsigned int dotnum;
+
+  unsigned int completed;
+
+  int print;
+
+  char *startup_string;
+};
+
+#if !OLD
+/**
+ * Convert unique ID to hash code.
+ *
+ * @param uid unique ID to convert
+ * @param hash set to uid (extended with zeros)
+ */
+static void
+hash_from_uid (uint32_t uid, GNUNET_HashCode * hash)
+  {
+    memset (hash, 0, sizeof (GNUNET_HashCode));
+    *((uint32_t *) hash) = uid;
+  }
+
+/**
+ * Convert hash code to unique ID.
+ *
+ * @param uid unique ID to convert
+ * @param hash set to uid (extended with zeros)
+ */
+static void
+uid_from_hash (const GNUNET_HashCode * hash, uint32_t * uid)
+  {
+    memcpy (uid, hash, sizeof (uint32_t));
+  }
+#endif
+
+#if USE_SEND_HELLOS
+static struct GNUNET_CORE_MessageHandler no_handlers[] =
+  {
+      { NULL, 0, 0}};
+#endif
+
+/**
+ * Create a meter to keep track of the progress of some task.
+ *
+ * @param total the total number of items to complete
+ * @param start_string a string to prefix the meter with (if printing)
+ * @param print GNUNET_YES to print the meter, GNUNET_NO to count
+ *              internally only
+ *
+ * @return the progress meter
+ */
+static struct ProgressMeter *
+create_meter(unsigned int total, char * start_string, int print)
+{
+  struct ProgressMeter *ret;
+  ret = GNUNET_malloc(sizeof(struct ProgressMeter));
+  ret->print = print;
+  ret->total = total;
+  ret->modnum = total / 4;
+  if (ret->modnum == 0) /* Divide by zero check */
+    ret->modnum = 1;
+  ret->dotnum = (total / 50) + 1;
+  if (start_string != NULL)
+    ret->startup_string = GNUNET_strdup(start_string);
+  else
+    ret->startup_string = GNUNET_strdup("");
+
+  return ret;
+}
+
+/**
+ * Update progress meter (increment by one).
+ *
+ * @param meter the meter to update and print info for
+ *
+ * @return GNUNET_YES if called the total requested,
+ *         GNUNET_NO if more items expected
+ */
+static int
+update_meter(struct ProgressMeter *meter)
+{
+  if (meter->print == GNUNET_YES)
+    {
+      if (meter->completed % meter->modnum == 0)
+        {
+          if (meter->completed == 0)
+            {
+              fprintf (stdout, "%sProgress: [0%%", meter->startup_string);
+            }
+          else
+            fprintf (stdout, "%d%%", (int) (((float) meter->completed
+                / meter->total) * 100));
+        }
+      else if (meter->completed % meter->dotnum == 0)
+        fprintf (stdout, ".");
+
+      if (meter->completed + 1 == meter->total)
+        fprintf (stdout, "%d%%]\n", 100);
+      fflush (stdout);
+    }
+  meter->completed++;
+
+  if (meter->completed == meter->total)
+    return GNUNET_YES;
+  if (meter->completed > meter->total)
+    GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Progress meter overflow!!\n");
+  return GNUNET_NO;
+}
+
+/**
+ * Reset progress meter.
+ *
+ * @param meter the meter to reset
+ *
+ * @return GNUNET_YES if meter reset,
+ *         GNUNET_SYSERR on error
+ */
+static int
+reset_meter(struct ProgressMeter *meter)
+{
+  if (meter == NULL)
+    return GNUNET_SYSERR;
+
+  meter->completed = 0;
+  return GNUNET_YES;
+}
+
+/**
+ * Release resources for meter
+ *
+ * @param meter the meter to free
+ */
+static void
+free_meter(struct ProgressMeter *meter)
+{
+  GNUNET_free_non_null (meter->startup_string);
+  GNUNET_free (meter);
+}
+
+/**
+ * Get a topology from a string input.
+ *
+ * @param topology where to write the retrieved topology
+ * @param topology_string The string to attempt to
+ *        get a configuration value from
+ * @return GNUNET_YES if topology string matched a
+ *         known topology, GNUNET_NO if not
+ */
+int
+GNUNET_TESTING_topology_get(enum GNUNET_TESTING_Topology *topology,
+                            const char *topology_string)
+{
+  /**
+   * Strings representing topologies in enum
+   */
+  static const char *topology_strings[] =
+    {
+    /**
+     * A clique (everyone connected to everyone else).
+     */
+    "CLIQUE",
+
+    /**
+     * Small-world network (2d torus plus random links).
+     */
+    "SMALL_WORLD",
+
+    /**
+     * Small-world network (ring plus random links).
+     */
+    "SMALL_WORLD_RING",
+
+    /**
+     * Ring topology.
+     */
+    "RING",
+
+    /**
+     * 2-d torus.
+     */
+    "2D_TORUS",
+
+    /**
+     * Random graph.
+     */
+    "ERDOS_RENYI",
+
+    /**
+     * Certain percentage of peers are unable to communicate directly
+     * replicating NAT conditions
+     */
+    "INTERNAT",
+
+    /**
+     * Scale free topology.
+     */
+    "SCALE_FREE",
+
+    /**
+     * Straight line topology.
+     */
+    "LINE",
+
+    /**
+     * All peers are disconnected.
+     */
+    "NONE",
+
+    /**
+     * Read the topology from a file.
+     */
+    "FROM_FILE",
+
+    NULL };
+
+  int curr = 0;
+  if (topology_string == NULL)
+    return GNUNET_NO;
+  while (topology_strings[curr] != NULL)
+    {
+      if (strcasecmp (topology_strings[curr], topology_string) == 0)
+        {
+          *topology = curr;
+          return GNUNET_YES;
+        }
+      curr++;
+    }
+  *topology = GNUNET_TESTING_TOPOLOGY_NONE;
+  return GNUNET_NO;
+}
+
+/**
+ * Get connect topology option from string input.
  *
  * @param topology_option where to write the retrieved topology
  * @param topology_string The string to attempt to
@@ -690,57 +1201,64 @@ GNUNET_TESTING_topology_get(enum GNUNET_TESTING_Topology *topology, char * topol
  *         topology option, GNUNET_NO if not
  */
 int
-GNUNET_TESTING_topology_option_get (enum GNUNET_TESTING_TopologyOption *topology_option,
-                                   char * topology_string)
+GNUNET_TESTING_topology_option_get(
+                                   enum GNUNET_TESTING_TopologyOption *topology_option,
+                                   const char *topology_string)
 {
   /**
    * Options for connecting a topology as strings.
    */
-  static const char * topology_option_strings[] =
-    {
-      /**
-       * Try to connect all peers specified in the topology.
-       */
-      "CONNECT_ALL",
-      
-      /**
-       * Choose a random subset of connections to create.
-       */
-      "CONNECT_RANDOM_SUBSET",
-      
-      /**
-       * Create at least X connections for each peer.
-       */
-      "CONNECT_MINIMUM",
-      
-      /**
-       * Using a depth first search, create one connection
-       * per peer.  If any are missed (graph disconnected)
-       * start over at those peers until all have at least one
-       * connection.
-       */
-      "CONNECT_DFS",
-      
-      /**
-       * No options specified.
-       */
-      "CONNECT_NONE",
-
-      NULL
-    };
+  static const char *topology_option_strings[] =
+    {
+    /**
+     * Try to connect all peers specified in the topology.
+     */
+    "CONNECT_ALL",
+
+    /**
+     * Choose a random subset of connections to create.
+     */
+    "CONNECT_RANDOM_SUBSET",
+
+    /**
+     * Create at least X connections for each peer.
+     */
+    "CONNECT_MINIMUM",
+
+    /**
+     * Using a depth first search, create one connection
+     * per peer.  If any are missed (graph disconnected)
+     * start over at those peers until all have at least one
+     * connection.
+     */
+    "CONNECT_DFS",
+
+    /**
+     * Find the N closest peers to each allowed peer in the
+     * topology and make sure a connection to those peers
+     * exists in the connect topology.
+     */
+    "CONNECT_CLOSEST",
+
+    /**
+     * No options specified.
+     */
+    "CONNECT_NONE",
+
+    NULL };
   int curr = 0;
 
   if (topology_string == NULL)
     return GNUNET_NO;
   while (NULL != topology_option_strings[curr])
     {
-      if (strcasecmp(topology_option_strings[curr], topology_string) == 0)
-       {
-         *topology_option = curr;
-         return GNUNET_YES;
-       }
+      if (strcasecmp (topology_option_strings[curr], topology_string) == 0)
+        {
+          *topology_option = curr;
+          return GNUNET_YES;
+        }
       curr++;
-    } 
+    }
   *topology_option = GNUNET_TESTING_TOPOLOGY_OPTION_NONE;
   return GNUNET_NO;
 }
@@ -756,8 +1274,8 @@ GNUNET_TESTING_topology_option_get (enum GNUNET_TESTING_TopologyOption *topology
  * @param value value of the option
  */
 static void
-update_config (void *cls,
-               const char *section, const char *option, const char *value)
+update_config(void *cls, const char *section, const char *option,
+              const char *value)
 {
   struct UpdateContext *ctx = cls;
   unsigned int ival;
@@ -767,54 +1285,63 @@ update_config (void *cls,
   char *per_host_variable;
   unsigned long long num_per_host;
 
+  GNUNET_asprintf (&single_variable, "single_%s_per_host", section);
+  GNUNET_asprintf (&per_host_variable, "num_%s_per_host", section);
+
   if ((0 == strcmp (option, "PORT")) && (1 == sscanf (value, "%u", &ival)))
     {
-      GNUNET_asprintf(&single_variable, "single_%s_per_host", section);
-      if ((ival != 0) && (GNUNET_YES != GNUNET_CONFIGURATION_get_value_yesno(ctx->orig, "testing", single_variable)))
-       {
-         GNUNET_snprintf (cval, sizeof (cval), "%u", ctx->nport++);
-         value = cval;
-       }
-
-      GNUNET_free(single_variable);
+      if ((ival != 0) && (GNUNET_YES
+          != GNUNET_CONFIGURATION_get_value_yesno (ctx->orig, "testing",
+                                                   single_variable)))
+        {
+          GNUNET_snprintf (cval, sizeof(cval), "%u", ctx->nport++);
+          value = cval;
+        }
+      else if ((ival != 0) && (GNUNET_YES
+          == GNUNET_CONFIGURATION_get_value_yesno (ctx->orig, "testing",
+                                                   single_variable))
+          && GNUNET_CONFIGURATION_get_value_number (ctx->orig, "testing",
+                                                    per_host_variable,
+                                                    &num_per_host))
+        {
+          GNUNET_snprintf (cval, sizeof(cval), "%u", ival + ctx->fdnum
+              % num_per_host);
+          value = cval;
+        }
     }
 
   if (0 == strcmp (option, "UNIXPATH"))
     {
-      GNUNET_asprintf(&single_variable, "single_%s_per_host", section);
-      GNUNET_asprintf(&per_host_variable, "num_%s_per_host", section);
-      if (GNUNET_YES != GNUNET_CONFIGURATION_get_value_yesno(ctx->orig, "testing", single_variable))
+      if (GNUNET_YES != GNUNET_CONFIGURATION_get_value_yesno (ctx->orig,
+                                                              "testing",
+                                                              single_variable))
         {
-          GNUNET_snprintf (uval,
-                           sizeof (uval),
-                           "/tmp/test-service-%s-%u",
-                           section,
-                           ctx->upnum++);
+          GNUNET_snprintf (uval, sizeof(uval), "/tmp/test-service-%s-%u",
+                           section, ctx->upnum++);
           value = uval;
         }
-      else if (GNUNET_YES == GNUNET_CONFIGURATION_get_value_number(ctx->orig, "testing", per_host_variable, &num_per_host))
+      else if ((GNUNET_YES
+          == GNUNET_CONFIGURATION_get_value_number (ctx->orig, "testing",
+                                                    per_host_variable,
+                                                    &num_per_host))
+          && (num_per_host > 0))
+
         {
-          GNUNET_snprintf (uval,
-                           sizeof (uval),
-                           "/tmp/test-service-%s-%u",
-                           section,
-                           ctx->fdnum % num_per_host);
+          GNUNET_snprintf (uval, sizeof(uval), "/tmp/test-service-%s-%u",
+                           section, ctx->fdnum % num_per_host);
           value = uval;
         }
-      GNUNET_free(single_variable);
-      GNUNET_free(per_host_variable);
-
     }
 
   if ((0 == strcmp (option, "HOSTNAME")) && (ctx->hostname != NULL))
     {
       value = ctx->hostname;
     }
-
+  GNUNET_free (single_variable);
+  GNUNET_free (per_host_variable);
   GNUNET_CONFIGURATION_set_value_string (ctx->ret, section, option, value);
 }
 
-
 /**
  * Create a new configuration using the given configuration
  * as a template; however, each PORT in the existing cfg
@@ -822,6 +1349,7 @@ update_config (void *cls,
  * out of "*port" numbers, return NULL.
  *
  * @param cfg template configuration
+ * @param off the current peer offset
  * @param port port numbers to use, update to reflect
  *             port numbers that were used
  * @param upnum number to make unix domain socket names unique
@@ -832,10 +1360,9 @@ update_config (void *cls,
  * @return new configuration, NULL on error
  */
 static struct GNUNET_CONFIGURATION_Handle *
-make_config (const struct GNUNET_CONFIGURATION_Handle *cfg, 
-            uint16_t * port,
-            uint32_t * upnum,
-            const char *hostname, uint32_t * fdnum)
+make_config(const struct GNUNET_CONFIGURATION_Handle *cfg, uint32_t off,
+            uint16_t * port, uint32_t * upnum, const char *hostname,
+            uint32_t * fdnum)
 {
   struct UpdateContext uc;
   uint16_t orig;
@@ -858,39 +1385,68 @@ make_config (const struct GNUNET_CONFIGURATION_Handle *cfg,
       return NULL;
     }
 
-  if (GNUNET_CONFIGURATION_get_value_string(cfg, "testing", "control_host", &control_host) == GNUNET_OK)
+  if (GNUNET_CONFIGURATION_get_value_string (cfg, "testing", "control_host",
+                                             &control_host) == GNUNET_OK)
     {
       if (hostname != NULL)
-        GNUNET_asprintf(&allowed_hosts, "%s; 127.0.0.1; %s;", control_host, hostname);
+        GNUNET_asprintf (&allowed_hosts, "%s; 127.0.0.1; %s;", control_host,
+                         hostname);
       else
-        GNUNET_asprintf(&allowed_hosts, "%s; 127.0.0.1;", control_host);
-
-      GNUNET_CONFIGURATION_set_value_string(uc.ret, "core", "ACCEPT_FROM", allowed_hosts);
-      GNUNET_CONFIGURATION_set_value_string(uc.ret, "transport", "ACCEPT_FROM", allowed_hosts);
-      GNUNET_CONFIGURATION_set_value_string(uc.ret, "dht", "ACCEPT_FROM", allowed_hosts);
-      GNUNET_CONFIGURATION_set_value_string(uc.ret, "statistics", "ACCEPT_FROM", allowed_hosts);
-      GNUNET_free_non_null(control_host);
-      GNUNET_free(allowed_hosts);
+        GNUNET_asprintf (&allowed_hosts, "%s; 127.0.0.1;", control_host);
+
+      GNUNET_CONFIGURATION_set_value_string (uc.ret, "core", "ACCEPT_FROM",
+                                             allowed_hosts);
+      GNUNET_CONFIGURATION_set_value_string (uc.ret, "transport",
+                                             "ACCEPT_FROM", allowed_hosts);
+      GNUNET_CONFIGURATION_set_value_string (uc.ret, "dht", "ACCEPT_FROM",
+                                             allowed_hosts);
+      GNUNET_CONFIGURATION_set_value_string (uc.ret, "statistics",
+                                             "ACCEPT_FROM", allowed_hosts);
+
+      GNUNET_CONFIGURATION_set_value_string (uc.ret, "core", "UNIXPATH", "");
+      GNUNET_CONFIGURATION_set_value_string (uc.ret, "transport", "UNIXPATH",
+                                             "");
+      GNUNET_CONFIGURATION_set_value_string (uc.ret, "dht", "UNIXPATH", "");
+      GNUNET_CONFIGURATION_set_value_string (uc.ret, "statistics", "UNIXPATH",
+                                             "");
+
+      GNUNET_CONFIGURATION_set_value_string (uc.ret, "transport-tcp", "USE_LOCALADDR",
+                                             "YES");
+      GNUNET_CONFIGURATION_set_value_string (uc.ret, "transport-udp", "USE_LOCALADDR",
+                                             "YES");
+      GNUNET_free_non_null (control_host);
+      GNUNET_free (allowed_hosts);
     }
 
-
   /* arm needs to know to allow connections from the host on which it is running,
    * otherwise gnunet-arm is unable to connect to it in some instances */
   if (hostname != NULL)
     {
-      GNUNET_asprintf(&allowed_hosts, "%s; 127.0.0.1;", hostname);
-      GNUNET_CONFIGURATION_set_value_string(uc.ret, "transport-udp", "BINDTO", hostname);
-      GNUNET_CONFIGURATION_set_value_string(uc.ret, "transport-tcp", "BINDTO", hostname);
-      GNUNET_CONFIGURATION_set_value_string(uc.ret, "arm", "ACCEPT_FROM", allowed_hosts);
-      GNUNET_free(allowed_hosts);
+      GNUNET_asprintf (&allowed_hosts, "%s; 127.0.0.1;", hostname);
+      GNUNET_CONFIGURATION_set_value_string (uc.ret, "transport-udp", "BINDTO",
+                                             hostname);
+      GNUNET_CONFIGURATION_set_value_string (uc.ret, "transport-tcp", "BINDTO",
+                                             hostname);
+      GNUNET_CONFIGURATION_set_value_string (uc.ret, "transport-tcp", "USE_LOCALADDR",
+                                             "YES");
+      GNUNET_CONFIGURATION_set_value_string (uc.ret, "transport-udp", "USE_LOCALADDR",
+                                             "YES");
+      GNUNET_CONFIGURATION_set_value_string (uc.ret, "arm", "ACCEPT_FROM",
+                                             allowed_hosts);
+      GNUNET_free (allowed_hosts);
     }
   else
     {
-      GNUNET_CONFIGURATION_set_value_string(uc.ret, "transport-tcp", "BINDTO", "127.0.0.1");
-      GNUNET_CONFIGURATION_set_value_string(uc.ret, "transport-udp", "BINDTO", "127.0.0.1");
+      GNUNET_CONFIGURATION_set_value_string (uc.ret, "transport-tcp", "BINDTO",
+                                             "127.0.0.1");
+      GNUNET_CONFIGURATION_set_value_string (uc.ret, "transport-udp", "BINDTO",
+                                             "127.0.0.1");
+      GNUNET_CONFIGURATION_set_value_string (uc.ret, "transport-tcp", "USE_LOCALADDR",
+                                             "YES");
+      GNUNET_CONFIGURATION_set_value_string (uc.ret, "transport-udp", "USE_LOCALADDR",
+                                             "YES");
     }
 
-
   *port = (uint16_t) uc.nport;
   *upnum = uc.upnum;
   uc.fdnum++;
@@ -898,200 +1454,222 @@ make_config (const struct GNUNET_CONFIGURATION_Handle *cfg,
   return uc.ret;
 }
 
-
 /*
- * Add entries to the peers connect list
+ * Remove entries from the peer connection list
  *
  * @param pg the peer group we are working with
  * @param first index of the first peer
  * @param second index of the second peer
+ * @param list the peer list to use
+ * @param check UNUSED
  *
- * @return the number of connections added
- *         technically should only be 0 or 2
+ * @return the number of connections added (can be 0, 1 or 2)
  *
  */
-static int
-add_actual_connections(struct GNUNET_TESTING_PeerGroup *pg, unsigned int first, unsigned int second)
+static unsigned int
+remove_connections(struct GNUNET_TESTING_PeerGroup *pg, unsigned int first,
+                   unsigned int second, enum PeerLists list, unsigned int check)
 {
-  int added;
-  int add_first;
-  int add_second;
+  int removed;
+#if OLD
+  struct PeerConnection **first_list;
+  struct PeerConnection **second_list;
+  struct PeerConnection *first_iter;
+  struct PeerConnection *second_iter;
+  struct PeerConnection **first_tail;
+  struct PeerConnection **second_tail;
 
+#else
   GNUNET_HashCode hash_first;
   GNUNET_HashCode hash_second;
 
-  hash_from_uid(first, &hash_first);
-  hash_from_uid(second, &hash_second);
+  hash_from_uid (first, &hash_first);
+  hash_from_uid (second, &hash_second);
+#endif
 
-  add_first = GNUNET_NO;
-  if (GNUNET_NO == GNUNET_CONTAINER_multihashmap_contains(pg->peers[first].connect_peers, &hash_second))
+  removed = 0;
+#if OLD
+  switch (list)
     {
-      add_first = GNUNET_YES;
+  case ALLOWED:
+    first_list = &pg->peers[first].allowed_peers_head;
+    second_list = &pg->peers[second].allowed_peers_head;
+    first_tail = &pg->peers[first].allowed_peers_tail;
+    second_tail = &pg->peers[second].allowed_peers_tail;
+    break;
+  case CONNECT:
+    first_list = &pg->peers[first].connect_peers_head;
+    second_list = &pg->peers[second].connect_peers_head;
+    first_tail = &pg->peers[first].connect_peers_tail;
+    second_tail = &pg->peers[second].connect_peers_tail;
+    break;
+  case BLACKLIST:
+    first_list = &pg->peers[first].blacklisted_peers_head;
+    second_list = &pg->peers[second].blacklisted_peers_head;
+    first_tail = &pg->peers[first].blacklisted_peers_tail;
+    second_tail = &pg->peers[second].blacklisted_peers_tail;
+    break;
+  case WORKING_SET:
+    first_list = &pg->peers[first].connect_peers_working_set_head;
+    second_list = &pg->peers[second].connect_peers_working_set_head;
+    first_tail = &pg->peers[first].connect_peers_working_set_tail;
+    second_tail = &pg->peers[second].connect_peers_working_set_tail;
+    break;
+  default:
+    GNUNET_break(0);
+    return 0;
     }
 
-  add_second = GNUNET_NO;
-  if (GNUNET_NO == GNUNET_CONTAINER_multihashmap_contains(pg->peers[second].connect_peers, &hash_first))
+  first_iter = *first_list;
+  while (first_iter != NULL)
     {
-      add_second = GNUNET_YES;
+      if (first_iter->index == second)
+        {
+          GNUNET_CONTAINER_DLL_remove(*first_list, *first_tail, first_iter);
+          GNUNET_free(first_iter);
+          removed++;
+          break;
+        }
+      first_iter = first_iter->next;
     }
 
-  added = 0;
-  if (add_first)
+  second_iter = *second_list;
+  while (second_iter != NULL)
     {
-      GNUNET_assert(GNUNET_OK == GNUNET_CONTAINER_multihashmap_put(pg->peers[first].connect_peers, &hash_second, pg->peers[second].daemon, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY));
-      pg->peers[first].num_connections++;
-      added++;
+      if (second_iter->index == first)
+        {
+          GNUNET_CONTAINER_DLL_remove(*second_list, *second_tail, second_iter);
+          GNUNET_free(second_iter);
+          removed++;
+          break;
+        }
+      second_iter = second_iter->next;
+    }
+#else
+  if (GNUNET_YES ==
+      GNUNET_CONTAINER_multihashmap_contains (pg->peers[first].blacklisted_peers,
+          &hash_second))
+    {
+      GNUNET_CONTAINER_multihashmap_remove_all (pg->peers[first].blacklisted_peers,
+          &hash_second);
     }
 
-  if (add_second)
+  if (GNUNET_YES ==
+      GNUNET_CONTAINER_multihashmap_contains (pg->peers[second].blacklisted_peers,
+          &hash_first))
     {
-      GNUNET_assert(GNUNET_OK == GNUNET_CONTAINER_multihashmap_put(pg->peers[second].connect_peers, &hash_first, pg->peers[first].daemon, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY));
-      pg->peers[second].num_connections++;
-      added++;
+      GNUNET_CONTAINER_multihashmap_remove_all (pg->peers[second].blacklisted_peers,
+          &hash_first);
     }
+#endif
 
-  return added;
+  return removed;
 }
 
-
 /*
- * Add entries to the peers allowed connections list
+ * Add entries to the some list
  *
  * @param pg the peer group we are working with
  * @param first index of the first peer
  * @param second index of the second peer
+ * @param list the list type that we should modify
+ * @param check GNUNET_YES to check lists before adding
+ *              GNUNET_NO to force add
  *
  * @return the number of connections added (can be 0, 1 or 2)
- *         technically should only be 0 or 2, but the small price
- *         of iterating over the lists (hashmaps in the future)
- *         for being sure doesn't bother me!
  *
  */
-static int
-add_allowed_connections(struct GNUNET_TESTING_PeerGroup *pg, unsigned int first, unsigned int second)
+static unsigned int
+add_connections(struct GNUNET_TESTING_PeerGroup *pg, unsigned int first,
+                unsigned int second, enum PeerLists list, unsigned int check)
 {
   int added;
-#if OLD
+  int add_first;
+  int add_second;
+
+  struct PeerConnection **first_list;
+  struct PeerConnection **second_list;
   struct PeerConnection *first_iter;
   struct PeerConnection *second_iter;
   struct PeerConnection *new_first;
   struct PeerConnection *new_second;
-#endif
-  int add_first;
-  int add_second;
+  struct PeerConnection **first_tail;
+  struct PeerConnection **second_tail;
 
-  GNUNET_HashCode hash_first;
-  GNUNET_HashCode hash_second;
-
-  hash_from_uid(first, &hash_first);
-  hash_from_uid(second, &hash_second);
-
-  add_first = GNUNET_NO;
-  if (GNUNET_NO == GNUNET_CONTAINER_multihashmap_contains(pg->peers[first].allowed_peers, &hash_second))
-    {
-      add_first = GNUNET_YES;
-    }
-
-  add_second = GNUNET_NO;
-  if (GNUNET_NO == GNUNET_CONTAINER_multihashmap_contains(pg->peers[second].allowed_peers, &hash_first))
-    {
-      add_second = GNUNET_YES;
-    }
-#if OLD
-  first_iter = pg->peers[first].connected_peers;
-  while (first_iter != NULL)
+  switch (list)
     {
-      if (first_iter->daemon == pg->peers[second].daemon)
-        add_first = GNUNET_NO;
-      first_iter = first_iter->next;
+  case ALLOWED:
+    first_list = &pg->peers[first].allowed_peers_head;
+    second_list = &pg->peers[second].allowed_peers_head;
+    first_tail = &pg->peers[first].allowed_peers_tail;
+    second_tail = &pg->peers[second].allowed_peers_tail;
+    break;
+  case CONNECT:
+    first_list = &pg->peers[first].connect_peers_head;
+    second_list = &pg->peers[second].connect_peers_head;
+    first_tail = &pg->peers[first].connect_peers_tail;
+    second_tail = &pg->peers[second].connect_peers_tail;
+    break;
+  case BLACKLIST:
+    first_list = &pg->peers[first].blacklisted_peers_head;
+    second_list = &pg->peers[second].blacklisted_peers_head;
+    first_tail = &pg->peers[first].blacklisted_peers_tail;
+    second_tail = &pg->peers[second].blacklisted_peers_tail;
+    break;
+  case WORKING_SET:
+    first_list = &pg->peers[first].connect_peers_working_set_head;
+    second_list = &pg->peers[second].connect_peers_working_set_head;
+    first_tail = &pg->peers[first].connect_peers_working_set_tail;
+    second_tail = &pg->peers[second].connect_peers_working_set_tail;
+    break;
+  default:
+    GNUNET_break(0);
+    return 0;
     }
 
-  second_iter = pg->peers[second].connected_peers;
+  add_first = GNUNET_YES;
   add_second = GNUNET_YES;
-  while (second_iter != NULL)
-    {
-      if (second_iter->daemon == pg->peers[first].daemon)
-        add_second = GNUNET_NO;
-      second_iter = second_iter->next;
-    }
-#endif
-
-  added = 0;
-  if (add_first)
-    {
-      GNUNET_assert(GNUNET_OK == GNUNET_CONTAINER_multihashmap_put(pg->peers[first].allowed_peers, &hash_second, pg->peers[second].daemon, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY));
-#if OLD
-      new_first = GNUNET_malloc(sizeof(struct PeerConnection));
-      new_first->daemon = pg->peers[second].daemon;
-      new_first->next = pg->peers[first].connected_peers;
-      pg->peers[first].connected_peers = new_first;
-#endif
-      pg->peers[first].num_connections++;
-      added++;
-    }
-
-  if (add_second)
-    {
-      GNUNET_assert(GNUNET_OK == GNUNET_CONTAINER_multihashmap_put(pg->peers[second].allowed_peers, &hash_first, pg->peers[first].daemon, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY));
-#if OLD
-      new_second = GNUNET_malloc(sizeof(struct PeerConnection));
-      new_second->daemon = pg->peers[first].daemon;
-      new_second->next = pg->peers[second].connected_peers;
-      pg->peers[second].connected_peers = new_second;
-      pg->peers[first].num_connections++;
-#endif
-      pg->peers[second].num_connections++;
-      added++;
-    }
-
-  return added;
-}
-
-/*
- * Add entries to the peers blacklisted list
- *
- * @param pg the peer group we are working with
- * @param first index of the first peer
- * @param second index of the second peer
- *
- * @return the number of connections added (can be 0, 1 or 2)
- *
- */
-static int
-blacklist_connections(struct GNUNET_TESTING_PeerGroup *pg, unsigned int first, unsigned int second)
-{
-  int added;
-  int add_first;
-  int add_second;
-  GNUNET_HashCode hash_first;
-  GNUNET_HashCode hash_second;
-
-  hash_from_uid(first, &hash_first);
-  hash_from_uid(second, &hash_second);
 
-  add_first = GNUNET_NO;
-  if (GNUNET_NO == GNUNET_CONTAINER_multihashmap_contains(pg->peers[first].blacklisted_peers, &hash_second))
+  if (check == GNUNET_YES)
     {
-      add_first = GNUNET_YES;
-    }
+      first_iter = *first_list;
+      while (first_iter != NULL)
+        {
+          if (first_iter->index == second)
+            {
+              add_first = GNUNET_NO;
+              break;
+            }
+          first_iter = first_iter->next;
+        }
 
-  add_second = GNUNET_NO;
-  if (GNUNET_NO == GNUNET_CONTAINER_multihashmap_contains(pg->peers[second].blacklisted_peers, &hash_first))
-    {
-      add_second = GNUNET_YES;
+      second_iter = *second_list;
+      while (second_iter != NULL)
+        {
+          if (second_iter->index == first)
+            {
+              add_second = GNUNET_NO;
+              break;
+            }
+          second_iter = second_iter->next;
+        }
     }
 
   added = 0;
   if (add_first)
     {
-      GNUNET_assert(GNUNET_OK == GNUNET_CONTAINER_multihashmap_put(pg->peers[first].blacklisted_peers, &hash_second, pg->peers[second].daemon, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY));
+      new_first = GNUNET_malloc (sizeof (struct PeerConnection));
+      new_first->index = second;
+      GNUNET_CONTAINER_DLL_insert(*first_list, *first_tail, new_first);
       pg->peers[first].num_connections++;
       added++;
     }
 
   if (add_second)
     {
-      GNUNET_assert(GNUNET_OK == GNUNET_CONTAINER_multihashmap_put(pg->peers[second].blacklisted_peers, &hash_first, pg->peers[first].daemon, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY));
+      new_second = GNUNET_malloc (sizeof (struct PeerConnection));
+      new_second->index = first;
+      GNUNET_CONTAINER_DLL_insert(*second_list, *second_tail, new_second);
       pg->peers[second].num_connections++;
       added++;
     }
@@ -1099,47 +1677,6 @@ blacklist_connections(struct GNUNET_TESTING_PeerGroup *pg, unsigned int first, u
   return added;
 }
 
-/*
- * Remove entries from the peers blacklisted list
- *
- * @param pg the peer group we are working with
- * @param first index of the first peer
- * @param second index of the second peer
- *
- * @return the number of connections removed (can be 0, 1 or 2)
- *
- */
-static int
-unblacklist_connections(struct GNUNET_TESTING_PeerGroup *pg, unsigned int first, unsigned int second)
-{
-  int removed;
-  int remove_first;
-  int remove_second;
-  GNUNET_HashCode hash_first;
-  GNUNET_HashCode hash_second;
-
-  hash_from_uid(first, &hash_first);
-  hash_from_uid(second, &hash_second);
-
-  remove_first = GNUNET_CONTAINER_multihashmap_contains(pg->peers[first].blacklisted_peers, &hash_second);
-  remove_second = GNUNET_CONTAINER_multihashmap_contains(pg->peers[second].blacklisted_peers, &hash_first);
-
-  removed = 0;
-  if (remove_first)
-    {
-      GNUNET_assert(GNUNET_YES == GNUNET_CONTAINER_multihashmap_remove(pg->peers[first].blacklisted_peers, &hash_second, pg->peers[second].daemon));
-      removed++;
-    }
-
-  if (remove_second)
-    {
-      GNUNET_assert(GNUNET_YES == GNUNET_CONTAINER_multihashmap_remove(pg->peers[second].blacklisted_peers, &hash_first, pg->peers[first].daemon));
-      removed++;
-    }
-
-  return removed;
-}
-
 /**
  * Scale free network construction as described in:
  *
@@ -1152,11 +1689,13 @@ unblacklist_connections(struct GNUNET_TESTING_PeerGroup *pg, unsigned int first,
  *
  * @param pg the peer group we are dealing with
  * @param proc the connection processor to use
+ * @param list the peer list to use
  *
  * @return the number of connections created
  */
-static int
-create_scale_free (struct GNUNET_TESTING_PeerGroup *pg, GNUNET_TESTING_ConnectionProcessor proc)
+static unsigned int
+create_scale_free(struct GNUNET_TESTING_PeerGroup *pg,
+                  GNUNET_TESTING_ConnectionProcessor proc, enum PeerLists list)
 {
 
   unsigned int total_connections;
@@ -1166,32 +1705,34 @@ create_scale_free (struct GNUNET_TESTING_PeerGroup *pg, GNUNET_TESTING_Connectio
   double random;
   double probability;
 
-  GNUNET_assert(pg->total > 1);
+  GNUNET_assert (pg->total > 1);
 
   /* Add a connection between the first two nodes */
-  total_connections = proc(pg, 0, 1);
+  total_connections = proc (pg, 0, 1, list, GNUNET_YES);
 
   for (outer_count = 1; outer_count < pg->total; outer_count++)
     {
       previous_total_connections = total_connections;
       for (i = 0; i < outer_count; i++)
         {
-          probability = pg->peers[i].num_connections / (double)previous_total_connections;
-          random = ((double) GNUNET_CRYPTO_random_u64(GNUNET_CRYPTO_QUALITY_WEAK,
-                                                      UINT64_MAX)) / ( (double) UINT64_MAX);
+          probability = pg->peers[i].num_connections
+              / (double) previous_total_connections;
+          random
+              = ((double) GNUNET_CRYPTO_random_u64 (GNUNET_CRYPTO_QUALITY_WEAK,
+                                                    UINT64_MAX))
+                  / ((double) UINT64_MAX);
 #if VERBOSE_TESTING
           GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-                      "Considering connecting peer %d to peer %d\n",
-                      outer_count, i);
+              "Considering connecting peer %d to peer %d\n",
+              outer_count, i);
 #endif
           if (random < probability)
             {
 #if VERBOSE_TESTING
               GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-                          "Connecting peer %d to peer %d\n",
-                          outer_count, i);
+                  "Connecting peer %d to peer %d\n", outer_count, i);
 #endif
-              total_connections += proc(pg, outer_count, i);
+              total_connections += proc (pg, outer_count, i, list, GNUNET_YES);
             }
         }
     }
@@ -1201,23 +1742,41 @@ create_scale_free (struct GNUNET_TESTING_PeerGroup *pg, GNUNET_TESTING_Connectio
 
 /**
  * Create a topology given a peer group (set of running peers)
- * and a connection processor.
+ * and a connection processor.  Creates a small world topology
+ * according to the rewired ring construction.  The basic
+ * behavior is that a ring topology is created, but with some
+ * probability instead of connecting a peer to the next
+ * neighbor in the ring a connection will be created to a peer
+ * selected uniformly at random.   We use the TESTING
+ * PERCENTAGE option to specify what number of
+ * connections each peer should have.  Default is 2,
+ * which makes the ring, any given number is multiplied by
+ * the log of the network size; i.e. a PERCENTAGE of 2 makes
+ * each peer have on average 2logn connections.  The additional
+ * connections are made at increasing distance around the ring
+ * from the original peer, or to random peers based on the re-
+ * wiring probability. The TESTING
+ * PROBABILITY option is used as the probability that a given
+ * connection is rewired.
  *
  * @param pg the peergroup to create the topology on
  * @param proc the connection processor to call to actually set
  *        up connections between two peers
+ * @param list the peer list to use
  *
  * @return the number of connections that were set up
  *
  */
-int
-create_small_world_ring(struct GNUNET_TESTING_PeerGroup *pg, GNUNET_TESTING_ConnectionProcessor proc)
+static unsigned int
+create_small_world_ring(struct GNUNET_TESTING_PeerGroup *pg,
+                        GNUNET_TESTING_ConnectionProcessor proc,
+                        enum PeerLists list)
 {
   unsigned int i, j;
   int nodeToConnect;
   unsigned int natLog;
   unsigned int randomPeer;
-  double random, logNModifier, percentage;
+  double random, logNModifier, probability;
   unsigned int smallWorldConnections;
   int connsPerPeer;
   char *p_string;
@@ -1227,31 +1786,29 @@ create_small_world_ring(struct GNUNET_TESTING_PeerGroup *pg, GNUNET_TESTING_Conn
   int connect_attempts;
 
   logNModifier = 0.5; /* FIXME: default value? */
-  if (GNUNET_OK == GNUNET_CONFIGURATION_get_value_string(pg->cfg,
-                                                        "TESTING",
-                                                        "LOGNMODIFIER",
-                                                        &p_string))
-    {
-      if (sscanf(p_string, "%lf", &logNModifier) != 1)
-       GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
-                   _("Invalid value `%s' for option `%s' in section `%s': expected float\n"),
-                   p_string,
-                   "LOGNMODIFIER",
-                   "TESTING");
+  if (GNUNET_OK == GNUNET_CONFIGURATION_get_value_string (pg->cfg, "TESTING",
+                                                          "PERCENTAGE",
+                                                          &p_string))
+    {
+      if (sscanf (p_string, "%lf", &logNModifier) != 1)
+        GNUNET_log (
+                    GNUNET_ERROR_TYPE_WARNING,
+                    _
+                    ("Invalid value `%s' for option `%s' in section `%s': expected float\n"),
+                    p_string, "LOGNMODIFIER", "TESTING");
       GNUNET_free (p_string);
     }
-  percentage = 0.5; /* FIXME: default percentage? */
-  if (GNUNET_OK == GNUNET_CONFIGURATION_get_value_string(pg->cfg,
-                                                        "TESTING",
-                                                        "PERCENTAGE",
-                                                        &p_string))
-    {
-      if (sscanf(p_string, "%lf", &percentage) != 1)
-       GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
-                   _("Invalid value `%s' for option `%s' in section `%s': expected float\n"),
-                   p_string,
-                   "PERCENTAGE",
-                   "TESTING");
+  probability = 0.5; /* FIXME: default percentage? */
+  if (GNUNET_OK == GNUNET_CONFIGURATION_get_value_string (pg->cfg, "TESTING",
+                                                          "PROBABILITY",
+                                                          &p_string))
+    {
+      if (sscanf (p_string, "%lf", &probability) != 1)
+        GNUNET_log (
+                    GNUNET_ERROR_TYPE_WARNING,
+                    _
+                    ("Invalid value `%s' for option `%s' in section `%s': expected float\n"),
+                    p_string, "PERCENTAGE", "TESTING");
       GNUNET_free (p_string);
     }
   natLog = log (pg->total);
@@ -1260,6 +1817,9 @@ create_small_world_ring(struct GNUNET_TESTING_PeerGroup *pg, GNUNET_TESTING_Conn
   if (connsPerPeer % 2 == 1)
     connsPerPeer += 1;
 
+  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, _("Target is %d connections per peer."),
+              connsPerPeer);
+
   smallWorldConnections = 0;
   connect_attempts = 0;
   for (i = 0; i < pg->total; i++)
@@ -1282,25 +1842,26 @@ create_small_world_ring(struct GNUNET_TESTING_PeerGroup *pg, GNUNET_TESTING_Conn
 
       for (j = 0; j < connsPerPeer / 2; j++)
         {
-          random = ((double) GNUNET_CRYPTO_random_u64(GNUNET_CRYPTO_QUALITY_WEAK,
-                                                     UINT64_MAX) / ( (double) UINT64_MAX));
-          if (random < percentage)
+          random
+              = ((double) GNUNET_CRYPTO_random_u64 (GNUNET_CRYPTO_QUALITY_WEAK,
+                                                    UINT64_MAX)
+                  / ((double) UINT64_MAX));
+          if (random < probability)
             {
               /* Connect to uniformly selected random peer */
-              randomPeer =
-                GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK,
-                                   pg->total);
-              while ((((randomPeer < max) && (randomPeer > min))
-                      && (useAnd == 0)) || (((randomPeer > min)
-                                             || (randomPeer < max))
-                                            && (useAnd == 1)))
+              randomPeer
+                  = GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK,
+                                              pg->total);
+              while ((((randomPeer < max) && (randomPeer > min)) && (useAnd
+                  == 0)) || (((randomPeer > min) || (randomPeer < max))
+                  && (useAnd == 1)))
                 {
-                  randomPeer =
-                      GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK,
-                                                         pg->total);
+                  randomPeer
+                      GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK,
+                                                  pg->total);
                 }
-              smallWorldConnections +=
-                proc (pg, i, randomPeer);
+              smallWorldConnections += proc (pg, i, randomPeer, list,
+                                             GNUNET_YES);
             }
           else
             {
@@ -1309,8 +1870,7 @@ create_small_world_ring(struct GNUNET_TESTING_PeerGroup *pg, GNUNET_TESTING_Conn
                 {
                   nodeToConnect = nodeToConnect - pg->total;
                 }
-              connect_attempts +=
-                proc (pg, i, nodeToConnect);
+              connect_attempts += proc (pg, i, nodeToConnect, list, GNUNET_YES);
             }
         }
 
@@ -1328,12 +1888,15 @@ create_small_world_ring(struct GNUNET_TESTING_PeerGroup *pg, GNUNET_TESTING_Conn
  * @param pg the peergroup to create the topology on
  * @param proc the connection processor to call to actually set
  *        up connections between two peers
+ * @param list the peer list to use
  *
  * @return the number of connections that were set up
  *
  */
-static int
-create_nated_internet (struct GNUNET_TESTING_PeerGroup *pg, GNUNET_TESTING_ConnectionProcessor proc)
+static unsigned int
+create_nated_internet(struct GNUNET_TESTING_PeerGroup *pg,
+                      GNUNET_TESTING_ConnectionProcessor proc,
+                      enum PeerLists list)
 {
   unsigned int outer_count, inner_count;
   unsigned int cutoff;
@@ -1342,46 +1905,117 @@ create_nated_internet (struct GNUNET_TESTING_PeerGroup *pg, GNUNET_TESTING_Conne
   char *p_string;
 
   nat_percentage = 0.6; /* FIXME: default percentage? */
-  if (GNUNET_OK == GNUNET_CONFIGURATION_get_value_string(pg->cfg,
-                                                        "TESTING",
-                                                        "NATPERCENTAGE",
-                                                        &p_string))
-    {
-      if (sscanf(p_string, "%lf", &nat_percentage) != 1)
-       GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
-                   _("Invalid value `%s' for option `%s' in section `%s': expected float\n"),
-                   p_string,
-                   "NATPERCENTAGE",
-                   "TESTING");
+  if (GNUNET_OK == GNUNET_CONFIGURATION_get_value_string (pg->cfg, "TESTING",
+                                                          "PERCENTAGE",
+                                                          &p_string))
+    {
+      if (sscanf (p_string, "%lf", &nat_percentage) != 1)
+        GNUNET_log (
+                    GNUNET_ERROR_TYPE_WARNING,
+                    _
+                    ("Invalid value `%s' for option `%s' in section `%s': expected float\n"),
+                    p_string, "PERCENTAGE", "TESTING");
       GNUNET_free (p_string);
     }
 
+  cutoff = (unsigned int) (nat_percentage * pg->total);
+  connect_attempts = 0;
+  for (outer_count = 0; outer_count < pg->total - 1; outer_count++)
+    {
+      for (inner_count = outer_count + 1; inner_count < pg->total; inner_count++)
+        {
+          if ((outer_count > cutoff) || (inner_count > cutoff))
+            {
+#if VERBOSE_TESTING
+              GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+                  "Connecting peer %d to peer %d\n",
+                  outer_count, inner_count);
+#endif
+              connect_attempts += proc (pg, outer_count, inner_count, list,
+                                        GNUNET_YES);
+            }
+        }
+    }
+  return connect_attempts;
+}
+
+#if TOPOLOGY_HACK
+/**
+ * Create a topology given a peer group (set of running peers)
+ * and a connection processor.
+ *
+ * @param pg the peergroup to create the topology on
+ * @param proc the connection processor to call to actually set
+ *        up connections between two peers
+ * @param list the peer list to use
+ *
+ * @return the number of connections that were set up
+ *
+ */
+static unsigned int
+create_nated_internet_copy(struct GNUNET_TESTING_PeerGroup *pg,
+                           GNUNET_TESTING_ConnectionProcessor proc,
+                           enum PeerLists list)
+{
+  unsigned int outer_count, inner_count;
+  unsigned int cutoff;
+  int connect_attempts;
+  double nat_percentage;
+  char *p_string;
+  unsigned int count;
+  struct ProgressMeter *conn_meter;
 
+  nat_percentage = 0.6; /* FIXME: default percentage? */
+  if (GNUNET_OK == GNUNET_CONFIGURATION_get_value_string (pg->cfg, "TESTING",
+                                                          "PERCENTAGE",
+                                                          &p_string))
+    {
+      if (sscanf (p_string, "%lf", &nat_percentage) != 1)
+        GNUNET_log (
+                    GNUNET_ERROR_TYPE_WARNING,
+                    _
+                    ("Invalid value `%s' for option `%s' in section `%s': expected float\n"),
+                    p_string, "PERCENTAGE", "TESTING");
+      GNUNET_free (p_string);
+    }
 
   cutoff = (unsigned int) (nat_percentage * pg->total);
-
+  count = 0;
+  for (outer_count = 0; outer_count < pg->total - 1; outer_count++)
+    {
+      for (inner_count = outer_count + 1; inner_count < pg->total; inner_count++)
+        {
+          if ((outer_count > cutoff) || (inner_count > cutoff))
+            {
+              count++;
+            }
+        }
+    }
+  conn_meter = create_meter (count, "NAT COPY", GNUNET_YES);
   connect_attempts = 0;
-
   for (outer_count = 0; outer_count < pg->total - 1; outer_count++)
     {
-      for (inner_count = outer_count + 1; inner_count < pg->total;
-           inner_count++)
+      for (inner_count = outer_count + 1; inner_count < pg->total; inner_count++)
         {
           if ((outer_count > cutoff) || (inner_count > cutoff))
             {
 #if VERBOSE_TESTING
               GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-                          "Connecting peer %d to peer %d\n",
-                          outer_count, inner_count);
+                  "Connecting peer %d to peer %d\n",
+                  outer_count, inner_count);
 #endif
-              connect_attempts += proc(pg, outer_count, inner_count);
+              connect_attempts += proc (pg, outer_count, inner_count, list,
+                                        GNUNET_YES);
+              add_connections (pg, outer_count, inner_count, ALLOWED, GNUNET_NO);
+              update_meter (conn_meter);
             }
         }
     }
+  free_meter (conn_meter);
 
   return connect_attempts;
-
 }
+#endif
 
 /**
  * Create a topology given a peer group (set of running peers)
@@ -1390,12 +2024,14 @@ create_nated_internet (struct GNUNET_TESTING_PeerGroup *pg, GNUNET_TESTING_Conne
  * @param pg the peergroup to create the topology on
  * @param proc the connection processor to call to actually set
  *        up connections between two peers
+ * @param list the peer list to use
  *
  * @return the number of connections that were set up
  *
  */
-static int
-create_small_world (struct GNUNET_TESTING_PeerGroup *pg, GNUNET_TESTING_ConnectionProcessor proc)
+static unsigned int
+create_small_world(struct GNUNET_TESTING_PeerGroup *pg,
+                   GNUNET_TESTING_ConnectionProcessor proc, enum PeerLists list)
 {
   unsigned int i, j, k;
   unsigned int square;
@@ -1419,38 +2055,38 @@ create_small_world (struct GNUNET_TESTING_PeerGroup *pg, GNUNET_TESTING_Connecti
   cols = square;
 
   percentage = 0.5; /* FIXME: default percentage? */
-  if (GNUNET_OK == GNUNET_CONFIGURATION_get_value_string(pg->cfg,
-                                                        "TESTING",
-                                                        "PERCENTAGE",
-                                                        &p_string))
-    {
-      if (sscanf(p_string, "%lf", &percentage) != 1)
-       GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
-                   _("Invalid value `%s' for option `%s' in section `%s': expected float\n"),
-                   p_string,
-                   "PERCENTAGE",
-                   "TESTING");
+  if (GNUNET_OK == GNUNET_CONFIGURATION_get_value_string (pg->cfg, "TESTING",
+                                                          "PERCENTAGE",
+                                                          &p_string))
+    {
+      if (sscanf (p_string, "%lf", &percentage) != 1)
+        GNUNET_log (
+                    GNUNET_ERROR_TYPE_WARNING,
+                    _
+                    ("Invalid value `%s' for option `%s' in section `%s': expected float\n"),
+                    p_string, "PERCENTAGE", "TESTING");
       GNUNET_free (p_string);
     }
   if (percentage < 0.0)
     {
-      GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
-                  _("Invalid value `%s' for option `%s' in section `%s': got %f, needed value greater than 0\n"),
+      GNUNET_log (
+                  GNUNET_ERROR_TYPE_WARNING,
+                  _
+                  ("Invalid value `%s' for option `%s' in section `%s': got %f, needed value greater than 0\n"),
                   "PERCENTAGE", "TESTING", percentage);
       percentage = 0.5;
     }
   probability = 0.5; /* FIXME: default percentage? */
-  if (GNUNET_OK == GNUNET_CONFIGURATION_get_value_string(pg->cfg,
-                                                        "TESTING",
-                                                        "PROBABILITY",
-                                                        &p_string))
-    {
-      if (sscanf(p_string, "%lf", &probability) != 1)
-       GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
-                   _("Invalid value `%s' for option `%s' in section `%s': expected float\n"),
-                   p_string,
-                   "PROBABILITY",
-                   "TESTING");
+  if (GNUNET_OK == GNUNET_CONFIGURATION_get_value_string (pg->cfg, "TESTING",
+                                                          "PROBABILITY",
+                                                          &p_string))
+    {
+      if (sscanf (p_string, "%lf", &probability) != 1)
+        GNUNET_log (
+                    GNUNET_ERROR_TYPE_WARNING,
+                    _
+                    ("Invalid value `%s' for option `%s' in section `%s': expected float\n"),
+                    p_string, "PROBABILITY", "TESTING");
       GNUNET_free (p_string);
     }
   if (square * square != pg->total)
@@ -1466,9 +2102,10 @@ create_small_world (struct GNUNET_TESTING_PeerGroup *pg, GNUNET_TESTING_Connecti
         }
     }
 #if VERBOSE_TESTING
-      GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-                  _("Connecting nodes in 2d torus topology: %u rows %u columns\n"),
-                  rows, cols);
+  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+      _
+      ("Connecting nodes in 2d torus topology: %u rows %u columns\n"),
+      rows, cols);
 #endif
 
   connect_attempts = 0;
@@ -1487,26 +2124,33 @@ create_small_world (struct GNUNET_TESTING_PeerGroup *pg, GNUNET_TESTING_Connecti
       else
         nodeToConnect = i - cols + 1;
 
-      connect_attempts += proc (pg, i, nodeToConnect);
+      connect_attempts += proc (pg, i, nodeToConnect, list, GNUNET_YES);
 
       if (i < cols)
-        nodeToConnect = (rows * cols) - cols + i;
+        {
+          nodeToConnect = (rows * cols) - cols + i;
+          if (nodeToConnect >= pg->total)
+            nodeToConnect -= cols;
+        }
       else
         nodeToConnect = i - cols;
 
       if (nodeToConnect < pg->total)
-        connect_attempts += proc (pg, i, nodeToConnect);
+        connect_attempts += proc (pg, i, nodeToConnect, list, GNUNET_YES);
     }
   natLog = log (pg->total);
 #if VERBOSE_TESTING > 2
   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-              _("natural log of %d is %d, will run %d iterations\n"),
-             pg->total, natLog, (int) (natLog * percentage));
-  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, _("Total connections added thus far: %u!\n"), connect_attempts);
+      _("natural log of %d is %d, will run %d iterations\n"),
+      pg->total, natLog, (int) (natLog * percentage));
+  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+      _("Total connections added thus far: %u!\n"), connect_attempts);
 #endif
   smallWorldConnections = 0;
-  small_world_it = (unsigned int)(natLog * percentage);
-  GNUNET_assert(small_world_it > 0 && small_world_it < (unsigned int)-1);
+  small_world_it = (unsigned int) (natLog * percentage);
+  if (small_world_it < 1)
+    small_world_it = 1;
+  GNUNET_assert (small_world_it > 0 && small_world_it < (unsigned int) -1);
   for (i = 0; i < small_world_it; i++)
     {
       for (j = 0; j < pg->total; j++)
@@ -1526,11 +2170,14 @@ create_small_world (struct GNUNET_TESTING_PeerGroup *pg, GNUNET_TESTING_Connecti
                   /* Calculate probability as 1 over the square of the distance */
                   probability = 1.0 / (distance * distance);
                   /* Choose a random value between 0 and 1 */
-                 random = ((double) GNUNET_CRYPTO_random_u64(GNUNET_CRYPTO_QUALITY_WEAK,
-                                                             UINT64_MAX)) / ( (double) UINT64_MAX);
+                  random
+                      = ((double) GNUNET_CRYPTO_random_u64 (
+                                                            GNUNET_CRYPTO_QUALITY_WEAK,
+                                                            UINT64_MAX))
+                          / ((double) UINT64_MAX);
                   /* If random < probability, then connect the two nodes */
                   if (random < probability)
-                    smallWorldConnections += proc (pg, j, k);
+                    smallWorldConnections += proc (pg, j, k, list, GNUNET_YES);
 
                 }
             }
@@ -1538,9 +2185,9 @@ create_small_world (struct GNUNET_TESTING_PeerGroup *pg, GNUNET_TESTING_Connecti
     }
   connect_attempts += smallWorldConnections;
 #if VERBOSE_TESTING > 2
-          GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-                      _("Total connections added for small world: %d!\n"),
-                      smallWorldConnections);
+  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+      _("Total connections added for small world: %d!\n"),
+      smallWorldConnections);
 #endif
   return connect_attempts;
 }
@@ -1552,12 +2199,14 @@ create_small_world (struct GNUNET_TESTING_PeerGroup *pg, GNUNET_TESTING_Connecti
  * @param pg the peergroup to create the topology on
  * @param proc the connection processor to call to actually set
  *        up connections between two peers
+ * @param list the peer list to use
  *
  * @return the number of connections that were set up
  *
  */
-static int
-create_erdos_renyi (struct GNUNET_TESTING_PeerGroup *pg, GNUNET_TESTING_ConnectionProcessor proc)
+static unsigned int
+create_erdos_renyi(struct GNUNET_TESTING_PeerGroup *pg,
+                   GNUNET_TESTING_ConnectionProcessor proc, enum PeerLists list)
 {
   double temp_rand;
   unsigned int outer_count;
@@ -1567,35 +2216,36 @@ create_erdos_renyi (struct GNUNET_TESTING_PeerGroup *pg, GNUNET_TESTING_Connecti
   char *p_string;
 
   probability = 0.5; /* FIXME: default percentage? */
-  if (GNUNET_OK == GNUNET_CONFIGURATION_get_value_string(pg->cfg,
-                                                        "TESTING",
-                                                        "PROBABILITY",
-                                                        &p_string))
-    {
-      if (sscanf(p_string, "%lf", &probability) != 1)
-       GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
-                   _("Invalid value `%s' for option `%s' in section `%s': expected float\n"),
-                   p_string,
-                   "PROBABILITY",
-                   "TESTING");
+  if (GNUNET_OK == GNUNET_CONFIGURATION_get_value_string (pg->cfg, "TESTING",
+                                                          "PROBABILITY",
+                                                          &p_string))
+    {
+      if (sscanf (p_string, "%lf", &probability) != 1)
+        GNUNET_log (
+                    GNUNET_ERROR_TYPE_WARNING,
+                    _
+                    ("Invalid value `%s' for option `%s' in section `%s': expected float\n"),
+                    p_string, "PROBABILITY", "TESTING");
       GNUNET_free (p_string);
     }
   connect_attempts = 0;
   for (outer_count = 0; outer_count < pg->total - 1; outer_count++)
     {
-      for (inner_count = outer_count + 1; inner_count < pg->total;
-           inner_count++)
+      for (inner_count = outer_count + 1; inner_count < pg->total; inner_count++)
         {
-          temp_rand = ((double) GNUNET_CRYPTO_random_u64(GNUNET_CRYPTO_QUALITY_WEAK,
-                                                        UINT64_MAX)) / ( (double) UINT64_MAX);
+          temp_rand
+              = ((double) GNUNET_CRYPTO_random_u64 (GNUNET_CRYPTO_QUALITY_WEAK,
+                                                    UINT64_MAX))
+                  / ((double) UINT64_MAX);
 #if VERBOSE_TESTING
           GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-                      _("rand is %f probability is %f\n"), temp_rand,
-                      probability);
+              _("rand is %f probability is %f\n"), temp_rand,
+              probability);
 #endif
           if (temp_rand < probability)
             {
-              connect_attempts += proc (pg, outer_count, inner_count);
+              connect_attempts += proc (pg, outer_count, inner_count, list,
+                                        GNUNET_YES);
             }
         }
     }
@@ -1605,17 +2255,21 @@ create_erdos_renyi (struct GNUNET_TESTING_PeerGroup *pg, GNUNET_TESTING_Connecti
 
 /**
  * Create a topology given a peer group (set of running peers)
- * and a connection processor.
+ * and a connection processor.  This particular function creates
+ * the connections for a 2d-torus, plus additional "closest"
+ * connections per peer.
  *
  * @param pg the peergroup to create the topology on
  * @param proc the connection processor to call to actually set
  *        up connections between two peers
+ * @param list the peer list to use
  *
  * @return the number of connections that were set up
  *
  */
-static int
-create_2d_torus (struct GNUNET_TESTING_PeerGroup *pg, GNUNET_TESTING_ConnectionProcessor proc)
+static unsigned int
+create_2d_torus(struct GNUNET_TESTING_PeerGroup *pg,
+                GNUNET_TESTING_ConnectionProcessor proc, enum PeerLists list)
 {
   unsigned int i;
   unsigned int square;
@@ -1644,9 +2298,10 @@ create_2d_torus (struct GNUNET_TESTING_PeerGroup *pg, GNUNET_TESTING_ConnectionP
         }
     }
 #if VERBOSE_TESTING
-      GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-                  _("Connecting nodes in 2d torus topology: %u rows %u columns\n"),
-                  rows, cols);
+  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+      _
+      ("Connecting nodes in 2d torus topology: %u rows %u columns\n"),
+      rows, cols);
 #endif
   /* Rows and columns are all sorted out, now iterate over all nodes and connect each
    * to the node to its right and above.  Once this is over, we'll have our torus!
@@ -1663,15 +2318,18 @@ create_2d_torus (struct GNUNET_TESTING_PeerGroup *pg, GNUNET_TESTING_ConnectionP
       else
         nodeToConnect = i - cols + 1;
 #if VERBOSE_TESTING
-          GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-                      "Connecting peer %d to peer %d\n",
-                      i, nodeToConnect);
+      GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+          "Connecting peer %d to peer %d\n", i, nodeToConnect);
 #endif
-      connect_attempts += proc(pg, i, nodeToConnect);
+      connect_attempts += proc (pg, i, nodeToConnect, list, GNUNET_YES);
 
       /* Second connect to the node immediately above */
       if (i < cols)
-        nodeToConnect = (rows * cols) - cols + i;
+        {
+          nodeToConnect = (rows * cols) - cols + i;
+          if (nodeToConnect >= pg->total)
+            nodeToConnect -= cols;
+        }
       else
         nodeToConnect = i - cols;
 
@@ -1679,10 +2337,9 @@ create_2d_torus (struct GNUNET_TESTING_PeerGroup *pg, GNUNET_TESTING_ConnectionP
         {
 #if VERBOSE_TESTING
           GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-                      "Connecting peer %d to peer %d\n",
-                      i, nodeToConnect);
+              "Connecting peer %d to peer %d\n", i, nodeToConnect);
 #endif
-          connect_attempts += proc(pg, i, nodeToConnect);
+          connect_attempts += proc (pg, i, nodeToConnect, list, GNUNET_YES);
         }
 
     }
@@ -1690,7 +2347,6 @@ create_2d_torus (struct GNUNET_TESTING_PeerGroup *pg, GNUNET_TESTING_ConnectionP
   return connect_attempts;
 }
 
-
 /**
  * Create a topology given a peer group (set of running peers)
  * and a connection processor.
@@ -1698,67 +2354,118 @@ create_2d_torus (struct GNUNET_TESTING_PeerGroup *pg, GNUNET_TESTING_ConnectionP
  * @param pg the peergroup to create the topology on
  * @param proc the connection processor to call to actually set
  *        up connections between two peers
+ * @param list the peer list to use
+ * @param check does the connection processor need to check before
+ *              performing an action on the list?
  *
  * @return the number of connections that were set up
  *
  */
-static int
-create_clique (struct GNUNET_TESTING_PeerGroup *pg, GNUNET_TESTING_ConnectionProcessor proc)
+static unsigned int
+create_clique(struct GNUNET_TESTING_PeerGroup *pg,
+              GNUNET_TESTING_ConnectionProcessor proc, enum PeerLists list,
+              unsigned int check)
 {
   unsigned int outer_count;
   unsigned int inner_count;
   int connect_attempts;
-
+  struct ProgressMeter *conn_meter;
   connect_attempts = 0;
 
+  conn_meter = create_meter ((((pg->total * pg->total) + pg->total) / 2)
+      - pg->total, "Create Clique ", GNUNET_NO);
   for (outer_count = 0; outer_count < pg->total - 1; outer_count++)
     {
-      for (inner_count = outer_count + 1; inner_count < pg->total;
-           inner_count++)
+      for (inner_count = outer_count + 1; inner_count < pg->total; inner_count++)
         {
 #if VERBOSE_TESTING
           GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-                      "Connecting peer %d to peer %d\n",
-                      outer_count, inner_count);
+              "Connecting peer %d to peer %d\n",
+              outer_count, inner_count);
 #endif
-          connect_attempts += proc(pg, outer_count, inner_count);
+          connect_attempts += proc (pg, outer_count, inner_count, list, check);
+          update_meter (conn_meter);
         }
     }
-
+  reset_meter (conn_meter);
+  free_meter (conn_meter);
   return connect_attempts;
 }
 
+#if !OLD
 /**
- * Create a topology given a peer group (set of running peers)
- * and a connection processor.
+ * Iterator over hash map entries.
+ *
+ * @param cls closure the peer group
+ * @param key the key stored in the hashmap is the
+ *            index of the peer to connect to
+ * @param value value in the hash map, handle to the peer daemon
+ * @return GNUNET_YES if we should continue to
+ *         iterate,
+ *         GNUNET_NO if not.
+ */
+static int
+unblacklist_iterator (void *cls,
+    const GNUNET_HashCode * key,
+    void *value)
+  {
+    struct UnblacklistContext *un_ctx = cls;
+    uint32_t second_pos;
+
+    uid_from_hash (key, &second_pos);
+
+    unblacklist_connections(un_ctx->pg, un_ctx->first_uid, second_pos);
+
+    return GNUNET_YES;
+  }
+#endif
+
+/**
+ * Create a blacklist topology based on the allowed topology
+ * which disallows any connections not in the allowed topology
+ * at the transport level.
  *
  * @param pg the peergroup to create the topology on
- * @param proc the connection processor to call to actually set
+ * @param proc the connection processor to call to allow
  *        up connections between two peers
  *
  * @return the number of connections that were set up
  *
  */
-static int
-create_line (struct GNUNET_TESTING_PeerGroup *pg, GNUNET_TESTING_ConnectionProcessor proc)
+static unsigned int
+copy_allowed(struct GNUNET_TESTING_PeerGroup *pg,
+             GNUNET_TESTING_ConnectionProcessor proc)
 {
   unsigned int count;
-  int connect_attempts;
-
-  connect_attempts = 0;
+  unsigned int total;
+  struct PeerConnection *iter;
+#if !OLD
+  struct UnblacklistContext un_ctx;
 
-  /* Connect each peer to the next highest numbered peer */
+  un_ctx.pg = pg;
+#endif
+  total = 0;
   for (count = 0; count < pg->total - 1; count++)
     {
-#if VERBOSE_TESTING
-          GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-                      "Connecting peer %d to peer %d\n",
-                      count, count + 1);
+#if OLD
+      iter = pg->peers[count].allowed_peers_head;
+      while (iter != NULL)
+        {
+          remove_connections (pg, count, iter->index, BLACKLIST, GNUNET_YES);
+          //unblacklist_connections(pg, count, iter->index);
+          iter = iter->next;
+        }
+#else
+      un_ctx.first_uid = count;
+      total += GNUNET_CONTAINER_multihashmap_iterate(pg->peers[count].allowed_peers, 
+                                                    &unblacklist_iterator,
+                                                    &un_ctx);
 #endif
-      connect_attempts += proc(pg, count, count + 1);
     }
-
-  return connect_attempts;
+  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, 
+             "Unblacklisted %u peers\n", 
+             total);
+  return total;
 }
 
 /**
@@ -1768,82 +2475,258 @@ create_line (struct GNUNET_TESTING_PeerGroup *pg, GNUNET_TESTING_ConnectionProce
  * @param pg the peergroup to create the topology on
  * @param proc the connection processor to call to actually set
  *        up connections between two peers
+ * @param list which list should be modified
  *
  * @return the number of connections that were set up
  *
  */
-static int
-create_ring (struct GNUNET_TESTING_PeerGroup *pg, GNUNET_TESTING_ConnectionProcessor proc)
+static unsigned int
+create_line(struct GNUNET_TESTING_PeerGroup *pg,
+            GNUNET_TESTING_ConnectionProcessor proc, enum PeerLists list)
 {
   unsigned int count;
-  int connect_attempts;
+  unsigned int connect_attempts;
 
   connect_attempts = 0;
-
   /* Connect each peer to the next highest numbered peer */
   for (count = 0; count < pg->total - 1; count++)
     {
 #if VERBOSE_TESTING
-          GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-                      "Connecting peer %d to peer %d\n",
-                      count, count + 1);
+      GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+                 "Connecting peer %d to peer %d\n", 
+                 count, count + 1);
 #endif
-      connect_attempts += proc(pg, count, count + 1);
+      connect_attempts += proc (pg, count, count + 1, list, GNUNET_YES);
     }
 
-  /* Connect the last peer to the first peer */
-  connect_attempts += proc(pg, pg->total - 1, 0);
-
   return connect_attempts;
 }
 
-
 /**
- * Iterator for writing friends of a peer to a file.
+ * Create a topology given a peer group (set of running peers)
+ * and a connection processor.
  *
- * @param cls closure, an open writable file handle
- * @param key the key the daemon was stored under
- * @param value the GNUNET_TESTING_Daemon that needs to be written.
+ * @param pg the peergroup to create the topology on
+ * @param filename the file to read topology information from
+ * @param proc the connection processor to call to actually set
+ *        up connections between two peers
+ * @param list the peer list to use
  *
- * @return GNUNET_YES to continue iteration
+ * @return the number of connections that were set up
  *
- * TODO: Could replace friend_file_iterator and blacklist_file_iterator
- *       with a single file_iterator that takes a closure which contains
- *       the prefix to write before the peer.  Then this could be used
- *       for blacklisting multiple transports and writing the friend
- *       file.  I'm sure *someone* will complain loudly about other
- *       things that negate these functions even existing so no point in
- *       "fixing" now.
  */
-static int
-friend_file_iterator (void *cls,
-                  const GNUNET_HashCode * key,
-                  void *value)
+static unsigned int
+create_from_file(struct GNUNET_TESTING_PeerGroup *pg, char *filename,
+                 GNUNET_TESTING_ConnectionProcessor proc, enum PeerLists list)
 {
-  FILE *temp_friend_handle = cls;
-  struct GNUNET_TESTING_Daemon *peer = value;
-  struct GNUNET_PeerIdentity *temppeer;
-  struct GNUNET_CRYPTO_HashAsciiEncoded peer_enc;
+  int connect_attempts;
+  unsigned int first_peer_index;
+  unsigned int second_peer_index;
+  struct stat frstat;
+  int count;
+  char *data;
+  const char *buf;
+  unsigned int total_peers;
+  enum States curr_state;
 
-  temppeer = &peer->id;
-  GNUNET_CRYPTO_hash_to_enc(&temppeer->hashPubKey, &peer_enc);
-  fprintf(temp_friend_handle, "%s\n", (char *)&peer_enc);
+  connect_attempts = 0;
+  if (GNUNET_OK != GNUNET_DISK_file_test (filename))
+    GNUNET_DISK_fn_write (filename, NULL, 0, GNUNET_DISK_PERM_USER_READ);
 
-  return GNUNET_YES;
-}
+  if ((0 != STAT (filename, &frstat)) || (frstat.st_size == 0))
+    {
+      GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                  "Could not open file `%s' specified for topology!", filename);
+      return connect_attempts;
+    }
 
-struct BlacklistContext
+  data = GNUNET_malloc_large (frstat.st_size);
+  GNUNET_assert(data != NULL);
+  if (frstat.st_size != GNUNET_DISK_fn_read (filename, data, frstat.st_size))
+    {
+      GNUNET_log (
+                  GNUNET_ERROR_TYPE_ERROR,
+                  "Could not read file %s specified for host list, ending test!",
+                  filename);
+      GNUNET_free (data);
+      return connect_attempts;
+    }
+
+  buf = data;
+  count = 0;
+  first_peer_index = 0;
+  /* First line should contain a single integer, specifying the number of peers */
+  /* Each subsequent line should contain this format PEER_INDEX:OTHER_PEER_INDEX[,...] */
+  curr_state = NUM_PEERS;
+  while (count < frstat.st_size - 1)
+    {
+      if ((buf[count] == '\n') || (buf[count] == ' '))
+        {
+          count++;
+          continue;
+        }
+
+      switch (curr_state)
+        {
+       case NUM_PEERS:
+         errno = 0;
+         total_peers = strtoul(&buf[count], NULL, 10);
+         if (errno != 0)
+           {
+             GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
+                         "Failed to read number of peers from topology file!\n");
+             GNUNET_free (data);
+             return connect_attempts;
+           }
+         GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
+                     "Read %u total peers in topology\n", total_peers);
+         GNUNET_assert(total_peers == pg->total);
+         curr_state = PEER_INDEX;
+         while ((buf[count] != '\n') && (count < frstat.st_size - 1))
+           count++;
+         count++;
+         break;
+       case PEER_INDEX:
+         errno = 0;
+         first_peer_index = strtoul(&buf[count], NULL, 10);
+         if (errno != 0)
+           {
+             GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
+                         "Failed to read peer index from topology file!\n");
+             GNUNET_free (data);
+             return connect_attempts;
+           }
+         while ((buf[count] != ':') && (count < frstat.st_size - 1))
+           count++;
+         count++;
+         curr_state = OTHER_PEER_INDEX;
+         break;
+       case COLON:
+         if (1 == sscanf (&buf[count], ":"))
+           curr_state = OTHER_PEER_INDEX;
+         count++;
+         break;
+       case OTHER_PEER_INDEX:
+         errno = 0;
+         second_peer_index = strtoul(&buf[count], NULL, 10);
+         if (errno != 0)
+           {
+             GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
+                         "Failed to peer index from topology file!\n");
+             GNUNET_free (data);
+             return connect_attempts;
+           }
+         /* Assume file is written with first peer 1, but array index is 0 */
+         connect_attempts += proc (pg, first_peer_index - 1, second_peer_index
+                                   - 1, list, GNUNET_YES);
+         while ((buf[count] != '\n') && (buf[count] != ',') && (count
+                                                                < frstat.st_size - 1))
+           count++;
+         if (buf[count] == '\n')
+           {
+             curr_state = PEER_INDEX;
+           }
+         else if (buf[count] != ',')
+           {
+             curr_state = OTHER_PEER_INDEX;
+           }
+         count++;
+         break;
+       default:
+         GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                     "Found bad data in topology file while in state %d!\n",
+                     curr_state);
+         GNUNET_break(0);
+         GNUNET_free (data);
+         return connect_attempts;
+        }
+    }
+  GNUNET_free (data);
+  return connect_attempts;
+}
+
+/**
+ * Create a topology given a peer group (set of running peers)
+ * and a connection processor.
+ *
+ * @param pg the peergroup to create the topology on
+ * @param proc the connection processor to call to actually set
+ *        up connections between two peers
+ * @param list the peer list to use
+ *
+ * @return the number of connections that were set up
+ *
+ */
+static unsigned int
+create_ring(struct GNUNET_TESTING_PeerGroup *pg,
+            GNUNET_TESTING_ConnectionProcessor proc, enum PeerLists list)
 {
-  /*
-   * The (open) file handle to write to
-   */
-  FILE *temp_file_handle;
+  unsigned int count;
+  int connect_attempts;
 
-  /*
-   * The transport that this peer will be blacklisted on.
-   */
-  char *transport;
-};
+  connect_attempts = 0;
+
+  /* Connect each peer to the next highest numbered peer */
+  for (count = 0; count < pg->total - 1; count++)
+    {
+#if VERBOSE_TESTING
+      GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+          "Connecting peer %d to peer %d\n", count, count + 1);
+#endif
+      connect_attempts += proc (pg, count, count + 1, list, GNUNET_YES);
+    }
+
+  /* Connect the last peer to the first peer */
+  connect_attempts += proc (pg, pg->total - 1, 0, list, GNUNET_YES);
+
+  return connect_attempts;
+}
+
+#if !OLD
+/**
+ * Iterator for writing friends of a peer to a file.
+ *
+ * @param cls closure, an open writable file handle
+ * @param key the key the daemon was stored under
+ * @param value the GNUNET_TESTING_Daemon that needs to be written.
+ *
+ * @return GNUNET_YES to continue iteration
+ *
+ * TODO: Could replace friend_file_iterator and blacklist_file_iterator
+ *       with a single file_iterator that takes a closure which contains
+ *       the prefix to write before the peer.  Then this could be used
+ *       for blacklisting multiple transports and writing the friend
+ *       file.  I'm sure *someone* will complain loudly about other
+ *       things that negate these functions even existing so no point in
+ *       "fixing" now.
+ */
+static int
+friend_file_iterator (void *cls, const GNUNET_HashCode * key, void *value)
+  {
+    FILE *temp_friend_handle = cls;
+    struct GNUNET_TESTING_Daemon *peer = value;
+    struct GNUNET_PeerIdentity *temppeer;
+    struct GNUNET_CRYPTO_HashAsciiEncoded peer_enc;
+
+    temppeer = &peer->id;
+    GNUNET_CRYPTO_hash_to_enc (&temppeer->hashPubKey, &peer_enc);
+    fprintf (temp_friend_handle, "%s\n", (char *) &peer_enc);
+
+    return GNUNET_YES;
+  }
+
+struct BlacklistContext
+  {
+    /*
+     * The (open) file handle to write to
+     */
+    FILE *temp_file_handle;
+
+    /*
+     * The transport that this peer will be blacklisted on.
+     */
+    char *transport;
+  };
 
 /**
  * Iterator for writing blacklist data to appropriate files.
@@ -1855,22 +2738,22 @@ struct BlacklistContext
  * @return GNUNET_YES to continue iteration
  */
 static int
-blacklist_file_iterator (void *cls,
-                         const GNUNET_HashCode * key,
-                         void *value)
-{
-  struct BlacklistContext *blacklist_ctx = cls;
-  //FILE *temp_blacklist_handle = cls;
-  struct GNUNET_TESTING_Daemon *peer = value;
-  struct GNUNET_PeerIdentity *temppeer;
-  struct GNUNET_CRYPTO_HashAsciiEncoded peer_enc;
+blacklist_file_iterator (void *cls, const GNUNET_HashCode * key, void *value)
+  {
+    struct BlacklistContext *blacklist_ctx = cls;
+    struct GNUNET_TESTING_Daemon *peer = value;
+    struct GNUNET_PeerIdentity *temppeer;
+    struct GNUNET_CRYPTO_HashAsciiEncoded peer_enc;
 
-  temppeer = &peer->id;
-  GNUNET_CRYPTO_hash_to_enc(&temppeer->hashPubKey, &peer_enc);
-  fprintf(blacklist_ctx->temp_file_handle, "%s:%s\n", blacklist_ctx->transport, (char *)&peer_enc);
+    temppeer = &peer->id;
+    GNUNET_CRYPTO_hash_to_enc (&temppeer->hashPubKey, &peer_enc);
+    GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Writing entry %s:%s to file\n", blacklist_ctx->transport, (char *) &peer_enc);
+    fprintf (blacklist_ctx->temp_file_handle, "%s:%s\n",
+        blacklist_ctx->transport, (char *) &peer_enc);
 
-  return GNUNET_YES;
-}
+    return GNUNET_YES;
+  }
+#endif
 
 /*
  * Create the friend files based on the PeerConnection's
@@ -1880,74 +2763,114 @@ blacklist_file_iterator (void *cls,
  * @param pg the peer group we are dealing with
  */
 static int
-create_and_copy_friend_files (struct GNUNET_TESTING_PeerGroup *pg)
+create_and_copy_friend_files(struct GNUNET_TESTING_PeerGroup *pg)
 {
   FILE *temp_friend_handle;
   unsigned int pg_iter;
   char *temp_service_path;
-  pid_t *pidarr;
+  struct GNUNET_OS_Process **procarr;
   char *arg;
-  char * mytemp;
+  char *mytemp;
+#if NOT_STUPID
   enum GNUNET_OS_ProcessStatusType type;
   unsigned long return_code;
   int count;
-  int ret;
   int max_wait = 10;
+#endif
+  int ret;
 
-  pidarr = GNUNET_malloc(sizeof(pid_t) * pg->total);
+  ret = GNUNET_OK;
+#if OLD
+  struct GNUNET_CRYPTO_HashAsciiEncoded peer_enc;
+  struct PeerConnection *conn_iter;
+#endif
+  procarr = GNUNET_malloc (sizeof (struct GNUNET_OS_Process *) * pg->total);
   for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
     {
-      mytemp = GNUNET_DISK_mktemp("friends");
-      GNUNET_assert(mytemp != NULL);
+      mytemp = GNUNET_DISK_mktemp ("friends");
+      GNUNET_assert (mytemp != NULL);
       temp_friend_handle = fopen (mytemp, "wt");
-      GNUNET_assert(temp_friend_handle != NULL);
-      GNUNET_CONTAINER_multihashmap_iterate(pg->peers[pg_iter].allowed_peers, &friend_file_iterator, temp_friend_handle);
-      fclose(temp_friend_handle);
+      GNUNET_assert (temp_friend_handle != NULL);
+#if OLD
+      conn_iter = pg->peers[pg_iter].allowed_peers_head;
+      while (conn_iter != NULL)
+        {
+          GNUNET_CRYPTO_hash_to_enc (
+                                     &pg->peers[conn_iter->index].daemon->id.hashPubKey,
+                                     &peer_enc);
+          fprintf (temp_friend_handle, "%s\n", (char *) &peer_enc);
+          conn_iter = conn_iter->next;
+        }
+#else
+      GNUNET_CONTAINER_multihashmap_iterate (pg->peers[pg_iter].allowed_peers,
+          &friend_file_iterator,
+          temp_friend_handle);
+#endif
+      fclose (temp_friend_handle);
 
-      if (GNUNET_OK !=
-         GNUNET_CONFIGURATION_get_value_string(pg->peers[pg_iter].daemon->cfg, "PATHS", "SERVICEHOME", &temp_service_path))
-       {
-          GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
-                     _("No `%s' specified in peer configuration in section `%s', cannot copy friends file!\n"),
-                     "SERVICEHOME",
-                     "PATHS");
+      if (GNUNET_OK
+          != GNUNET_CONFIGURATION_get_value_string (
+                                                    pg->peers[pg_iter]. daemon->cfg,
+                                                    "PATHS", "SERVICEHOME",
+                                                    &temp_service_path))
+        {
+          GNUNET_log (
+                      GNUNET_ERROR_TYPE_WARNING,
+                      _
+                      ("No `%s' specified in peer configuration in section `%s', cannot copy friends file!\n"),
+                      "SERVICEHOME", "PATHS");
           if (UNLINK (mytemp) != 0)
-            GNUNET_log_strerror_file (GNUNET_ERROR_TYPE_WARNING, "unlink", mytemp);
-         GNUNET_free (mytemp);
+            GNUNET_log_strerror_file (GNUNET_ERROR_TYPE_WARNING, "unlink",
+                mytemp);
+          GNUNET_free (mytemp);
           break;
         }
 
       if (pg->peers[pg_iter].daemon->hostname == NULL) /* Local, just copy the file */
         {
           GNUNET_asprintf (&arg, "%s/friends", temp_service_path);
-          pidarr[pg_iter] = GNUNET_OS_start_process (NULL, NULL, "mv",
-                                         "mv", mytemp, arg, NULL);
+          procarr[pg_iter] = GNUNET_OS_start_process (NULL, NULL, "mv", "mv",
+                                                      mytemp, arg, NULL);
+          GNUNET_assert(procarr[pg_iter] != NULL);
 #if VERBOSE_TESTING
           GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-                      _("Copying file with command cp %s %s\n"), mytemp, arg);
+              _("Copying file with command cp %s %s\n"), mytemp, arg);
 #endif
-
-          GNUNET_free(arg);
+          ret = GNUNET_OS_process_wait (procarr[pg_iter]); /* FIXME: schedule this, throttle! */
+          GNUNET_OS_process_close (procarr[pg_iter]);
+          GNUNET_free (arg);
         }
       else /* Remote, scp the file to the correct place */
         {
           if (NULL != pg->peers[pg_iter].daemon->username)
-            GNUNET_asprintf (&arg, "%s@%s:%s/friends", pg->peers[pg_iter].daemon->username, pg->peers[pg_iter].daemon->hostname, temp_service_path);
+            GNUNET_asprintf (&arg, "%s@%s:%s/friends",
+                             pg->peers[pg_iter].daemon->username,
+                             pg->peers[pg_iter].daemon->hostname,
+                             temp_service_path);
           else
-            GNUNET_asprintf (&arg, "%s:%s/friends", pg->peers[pg_iter].daemon->hostname, temp_service_path);
-          pidarr[pg_iter] = GNUNET_OS_start_process (NULL, NULL, "scp",
-                                         "scp", mytemp, arg, NULL);
-
+            GNUNET_asprintf (&arg, "%s:%s/friends",
+                             pg->peers[pg_iter].daemon->hostname,
+                             temp_service_path);
+          procarr[pg_iter] = GNUNET_OS_start_process (NULL, NULL, "scp", "scp",
+                                                      mytemp, arg, NULL);
+          GNUNET_assert(procarr[pg_iter] != NULL);
+          ret = GNUNET_OS_process_wait (procarr[pg_iter]); /* FIXME: schedule this, throttle! */
+          GNUNET_OS_process_close (procarr[pg_iter]);
+          if (ret != GNUNET_OK)
+            return ret;
+          procarr[pg_iter] = NULL;
 #if VERBOSE_TESTING
           GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-                      _("Copying file with command scp %s %s\n"), mytemp, arg);
+              _("Copying file with command scp %s %s\n"), mytemp,
+              arg);
 #endif
-          GNUNET_free(arg);
+          GNUNET_free (arg);
         }
       GNUNET_free (temp_service_path);
       GNUNET_free (mytemp);
     }
 
+#if NOT_STUPID
   count = 0;
   ret = GNUNET_SYSERR;
   while ((count < max_wait) && (ret != GNUNET_OK))
@@ -1957,23 +2880,26 @@ create_and_copy_friend_files (struct GNUNET_TESTING_PeerGroup *pg)
         {
 #if VERBOSE_TESTING
           GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-                      _("Checking copy status of file %d\n"), pg_iter);
+              _("Checking copy status of file %d\n"), pg_iter);
 #endif
-          if (pidarr[pg_iter] != 0) /* Check for already completed! */
+          if (procarr[pg_iter] != NULL) /* Check for already completed! */
             {
-              if (GNUNET_OS_process_status(pidarr[pg_iter], &type, &return_code) != GNUNET_OK)
+              if (GNUNET_OS_process_status
+                  (procarr[pg_iter], &type, &return_code) != GNUNET_OK)
                 {
                   ret = GNUNET_SYSERR;
                 }
-              else if ((type != GNUNET_OS_PROCESS_EXITED) || (return_code != 0))
+              else if ((type != GNUNET_OS_PROCESS_EXITED)
+                  || (return_code != 0))
                 {
                   ret = GNUNET_SYSERR;
                 }
               else
                 {
-                  pidarr[pg_iter] = 0;
+                  GNUNET_OS_process_close (procarr[pg_iter]);
+                  procarr[pg_iter] = NULL;
 #if VERBOSE_TESTING
-            GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+                  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
                       _("File %d copied\n"), pg_iter);
 #endif
                 }
@@ -1982,20 +2908,20 @@ create_and_copy_friend_files (struct GNUNET_TESTING_PeerGroup *pg)
       count++;
       if (ret == GNUNET_SYSERR)
         {
-         /* FIXME: why sleep here? -CG */
-          sleep(1);
+          /* FIXME: why sleep here? -CG */
+          sleep (1);
         }
     }
 
 #if VERBOSE_TESTING
-    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-                _("Finished copying all friend files!\n"));
+  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+      _("Finished copying all friend files!\n"));
 #endif
-  GNUNET_free(pidarr);
+#endif
+  GNUNET_free (procarr);
   return ret;
 }
 
-
 /*
  * Create the blacklist files based on the PeerConnection's
  * of each peer in the peer group, and copy the files
@@ -2005,13 +2931,13 @@ create_and_copy_friend_files (struct GNUNET_TESTING_PeerGroup *pg)
  * @param transports space delimited list of transports to blacklist
  */
 static int
-create_and_copy_blacklist_files (struct GNUNET_TESTING_PeerGroup *pg, char *transports)
+create_and_copy_blacklist_files(struct GNUNET_TESTING_PeerGroup *pg,
+                                const char *transports)
 {
   FILE *temp_file_handle;
-  static struct BlacklistContext blacklist_ctx;
   unsigned int pg_iter;
   char *temp_service_path;
-  pid_t *pidarr;
+  struct GNUNET_OS_Process **procarr;
   char *arg;
   char *mytemp;
   enum GNUNET_OS_ProcessStatusType type;
@@ -2023,48 +2949,79 @@ create_and_copy_blacklist_files (struct GNUNET_TESTING_PeerGroup *pg, char *tran
   unsigned int i;
   char *pos;
   char *temp_transports;
+  int entry_count;
+#if OLD
+  struct GNUNET_CRYPTO_HashAsciiEncoded peer_enc;
+  struct PeerConnection *conn_iter;
+#else
+  static struct BlacklistContext blacklist_ctx;
+#endif
 
-  pidarr = GNUNET_malloc(sizeof(pid_t) * pg->total);
+  procarr = GNUNET_malloc (sizeof (struct GNUNET_OS_Process *) * pg->total);
   for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
     {
-      mytemp = GNUNET_DISK_mktemp("blacklist");
-      GNUNET_assert(mytemp != NULL);
+      mytemp = GNUNET_DISK_mktemp ("blacklist");
+      GNUNET_assert (mytemp != NULL);
       temp_file_handle = fopen (mytemp, "wt");
-      GNUNET_assert(temp_file_handle != NULL);
-      temp_transports = GNUNET_strdup(transports);
+      GNUNET_assert (temp_file_handle != NULL);
+      temp_transports = GNUNET_strdup (transports);
+#if !OLD
       blacklist_ctx.temp_file_handle = temp_file_handle;
-      transport_len = strlen(temp_transports) + 1;
+#endif
+      transport_len = strlen (temp_transports) + 1;
       pos = NULL;
 
       for (i = 0; i < transport_len; i++)
-      {
-        if ((temp_transports[i] == ' ') && (pos == NULL))
-          continue; /* At start of string (whitespace) */
-        else if ((temp_transports[i] == ' ') || (temp_transports[i] == '\0')) /* At end of string */
-        {
-          temp_transports[i] = '\0';
-          blacklist_ctx.transport = pos;
-          GNUNET_CONTAINER_multihashmap_iterate(pg->peers[pg_iter].blacklisted_peers, &blacklist_file_iterator, &blacklist_ctx);
-          pos = NULL;
-        } /* At beginning of actual string */
-        else if (pos == NULL)
         {
-          pos = &temp_transports[i];
+          if ((temp_transports[i] == ' ') && (pos == NULL))
+            continue; /* At start of string (whitespace) */
+          else if ((temp_transports[i] == ' ') || (temp_transports[i] == '\0')) /* At end of string */
+            {
+              temp_transports[i] = '\0';
+#if OLD
+              conn_iter = pg->peers[pg_iter].blacklisted_peers_head;
+              while (conn_iter != NULL)
+                {
+                  GNUNET_CRYPTO_hash_to_enc (
+                                             &pg->peers[conn_iter->index].daemon->id.hashPubKey,
+                                             &peer_enc);
+                  fprintf (temp_file_handle, "%s:%s\n", pos, (char *) &peer_enc);
+                  conn_iter = conn_iter->next;
+                  entry_count++;
+                }
+#else
+              blacklist_ctx.transport = pos;
+              entry_count = GNUNET_CONTAINER_multihashmap_iterate (pg->
+                  peers
+                  [pg_iter].blacklisted_peers,
+                  &blacklist_file_iterator,
+                  &blacklist_ctx);
+#endif
+              pos = NULL;
+            } /* At beginning of actual string */
+          else if (pos == NULL)
+            {
+              pos = &temp_transports[i];
+            }
         }
-      }
 
       GNUNET_free (temp_transports);
-      fclose(temp_file_handle);
+      fclose (temp_file_handle);
 
-      if (GNUNET_OK !=
-          GNUNET_CONFIGURATION_get_value_string(pg->peers[pg_iter].daemon->cfg, "PATHS", "SERVICEHOME", &temp_service_path))
+      if (GNUNET_OK
+          != GNUNET_CONFIGURATION_get_value_string (
+                                                    pg->peers[pg_iter]. daemon->cfg,
+                                                    "PATHS", "SERVICEHOME",
+                                                    &temp_service_path))
         {
-          GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
-                      _("No `%s' specified in peer configuration in section `%s', cannot copy friends file!\n"),
-                      "SERVICEHOME",
-                      "PATHS");
+          GNUNET_log (
+                      GNUNET_ERROR_TYPE_WARNING,
+                      _
+                      ("No `%s' specified in peer configuration in section `%s', cannot copy friends file!\n"),
+                      "SERVICEHOME", "PATHS");
           if (UNLINK (mytemp) != 0)
-            GNUNET_log_strerror_file (GNUNET_ERROR_TYPE_WARNING, "unlink", mytemp);
+            GNUNET_log_strerror_file (GNUNET_ERROR_TYPE_WARNING, "unlink",
+                mytemp);
           GNUNET_free (mytemp);
           break;
         }
@@ -2072,29 +3029,37 @@ create_and_copy_blacklist_files (struct GNUNET_TESTING_PeerGroup *pg, char *tran
       if (pg->peers[pg_iter].daemon->hostname == NULL) /* Local, just copy the file */
         {
           GNUNET_asprintf (&arg, "%s/blacklist", temp_service_path);
-          pidarr[pg_iter] = GNUNET_OS_start_process (NULL, NULL, "mv",
-                                         "mv", mytemp, arg, NULL);
+          procarr[pg_iter] = GNUNET_OS_start_process (NULL, NULL, "mv", "mv",
+                                                      mytemp, arg, NULL);
 #if VERBOSE_TESTING
           GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-                      _("Copying file with command cp %s %s\n"), mytemp, arg);
+              _("Copying file with command cp %s %s\n"), mytemp, arg);
 #endif
 
-          GNUNET_free(arg);
+          GNUNET_free (arg);
         }
       else /* Remote, scp the file to the correct place */
         {
           if (NULL != pg->peers[pg_iter].daemon->username)
-            GNUNET_asprintf (&arg, "%s@%s:%s/blacklist", pg->peers[pg_iter].daemon->username, pg->peers[pg_iter].daemon->hostname, temp_service_path);
+            GNUNET_asprintf (&arg, "%s@%s:%s/blacklist",
+                             pg->peers[pg_iter].daemon->username,
+                             pg->peers[pg_iter].daemon->hostname,
+                             temp_service_path);
           else
-            GNUNET_asprintf (&arg, "%s:%s/blacklist", pg->peers[pg_iter].daemon->hostname, temp_service_path);
-          pidarr[pg_iter] = GNUNET_OS_start_process (NULL, NULL, "scp",
-                                         "scp", mytemp, arg, NULL);
+            GNUNET_asprintf (&arg, "%s:%s/blacklist",
+                             pg->peers[pg_iter].daemon->hostname,
+                             temp_service_path);
+          procarr[pg_iter] = GNUNET_OS_start_process (NULL, NULL, "scp", "scp",
+                                                      mytemp, arg, NULL);
+          GNUNET_assert(procarr[pg_iter] != NULL);
+          GNUNET_OS_process_wait (procarr[pg_iter]); /* FIXME: add scheduled blacklist file copy that parallelizes file copying! */
 
 #if VERBOSE_TESTING
           GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-                      _("Copying file with command scp %s %s\n"), mytemp, arg);
+              _("Copying file with command scp %s %s\n"), mytemp,
+              arg);
 #endif
-          GNUNET_free(arg);
+          GNUNET_free (arg);
         }
       GNUNET_free (temp_service_path);
       GNUNET_free (mytemp);
@@ -2109,11 +3074,12 @@ create_and_copy_blacklist_files (struct GNUNET_TESTING_PeerGroup *pg, char *tran
         {
 #if VERBOSE_TESTING
           GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-                      _("Checking copy status of file %d\n"), pg_iter);
+              _("Checking copy status of file %d\n"), pg_iter);
 #endif
-          if (pidarr[pg_iter] != 0) /* Check for already completed! */
+          if (procarr[pg_iter] != NULL) /* Check for already completed! */
             {
-              if (GNUNET_OS_process_status(pidarr[pg_iter], &type, &return_code) != GNUNET_OK)
+              if (GNUNET_OS_process_status (procarr[pg_iter], &type,
+                                            &return_code) != GNUNET_OK)
                 {
                   ret = GNUNET_SYSERR;
                 }
@@ -2123,9 +3089,10 @@ create_and_copy_blacklist_files (struct GNUNET_TESTING_PeerGroup *pg, char *tran
                 }
               else
                 {
-                  pidarr[pg_iter] = 0;
+                  GNUNET_OS_process_close (procarr[pg_iter]);
+                  procarr[pg_iter] = NULL;
 #if VERBOSE_TESTING
-            GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+                  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
                       _("File %d copied\n"), pg_iter);
 #endif
                 }
@@ -2134,202 +3101,719 @@ create_and_copy_blacklist_files (struct GNUNET_TESTING_PeerGroup *pg, char *tran
       count++;
       if (ret == GNUNET_SYSERR)
         {
-         /* FIXME: why sleep here? -CG */
-          sleep(1);
+          /* FIXME: why sleep here? -CG */
+          sleep (1);
         }
     }
 
 #if VERBOSE_TESTING
-    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-                _("Finished copying all blacklist files!\n"));
+  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+      _("Finished copying all blacklist files!\n"));
 #endif
-  GNUNET_free(pidarr);
+  GNUNET_free (procarr);
   return ret;
 }
 
+/* Forward Declaration */
+static void
+schedule_connect(void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc);
 
 /**
- * Internal notification of a connection, kept so that we can ensure some connections
- * happen instead of flooding all testing daemons with requests to connect.
+ * Choose a random peer's next connection to create, and
+ * call schedule_connect to set up the connect task.
+ *
+ * @param ct_ctx the overall connection context
  */
-static void internal_connect_notify (void *cls,
-                                     const struct GNUNET_PeerIdentity *first,
-                                     const struct GNUNET_PeerIdentity *second,
-                                     uint32_t distance,
-                                     const struct GNUNET_CONFIGURATION_Handle *first_cfg,
-                                     const struct GNUNET_CONFIGURATION_Handle *second_cfg,
-                                     struct GNUNET_TESTING_Daemon *first_daemon,
-                                     struct GNUNET_TESTING_Daemon *second_daemon,
-                                     const char *emsg)
+static void
+preschedule_connect(struct GNUNET_TESTING_PeerGroup *pg)
 {
-  struct GNUNET_TESTING_PeerGroup *pg = cls;
-  outstanding_connects--;
+  struct ConnectTopologyContext *ct_ctx = &pg->ct_ctx;
+  struct PeerConnection *connection_iter;
+  struct ConnectContext *connect_context;
+  uint32_t random_peer;
 
-  pg->notify_connection(pg->notify_connection_cls, first, second, distance, first_cfg, second_cfg, first_daemon, second_daemon, emsg);
+  if (ct_ctx->remaining_connections == 0)
+    return;
+  random_peer
+      = GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK, pg->total);
+  while (pg->peers[random_peer].connect_peers_head == NULL)
+    random_peer = GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK,
+                                            pg->total);
+
+  connection_iter = pg->peers[random_peer].connect_peers_head;
+  connect_context = GNUNET_malloc (sizeof (struct ConnectContext));
+  connect_context->first_index = random_peer;
+  connect_context->second_index = connection_iter->index;
+  connect_context->ct_ctx = ct_ctx;
+  GNUNET_SCHEDULER_add_now (&schedule_connect, connect_context);
+  GNUNET_CONTAINER_DLL_remove(pg->peers[random_peer].connect_peers_head, pg->peers[random_peer].connect_peers_tail, connection_iter);
+  GNUNET_free(connection_iter);
+  ct_ctx->remaining_connections--;
 }
 
+#if USE_SEND_HELLOS
+/* Forward declaration */
+static void schedule_send_hellos (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc);
 
 /**
- * Either delay a connection (because there are too many outstanding)
- * or schedule it for right now.
+ * Close connections and free the hello context.
  *
- * @param cls a connection context
- * @param tc the task runtime context
+ * @param cls the 'struct SendHelloContext *'
+ * @param tc scheduler context
  */
-static void schedule_connect(void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
-{
-  struct ConnectContext *connect_context = cls;
-
-  if (tc->reason == GNUNET_SCHEDULER_REASON_SHUTDOWN)
-    return;
-
-  if (outstanding_connects > MAX_OUTSTANDING_CONNECTIONS)
-    {
-#if VERBOSE_TESTING > 2
-          GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-                      _("Delaying connect, we have too many outstanding connections!\n"));
-#endif
-      GNUNET_SCHEDULER_add_delayed(connect_context->pg->sched, GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MILLISECONDS, 100), &schedule_connect, connect_context);
-    }
-  else
-    {
-#if VERBOSE_TESTING > 2
-          GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-                      _("Creating connection, outstanding_connections is %d\n"), outstanding_connects);
-#endif
-      outstanding_connects++;
-      GNUNET_TESTING_daemons_connect (connect_context->first,
-                                      connect_context->second,
-                                      CONNECT_TIMEOUT,
-                                      CONNECT_ATTEMPTS,
-                                      &internal_connect_notify,
-                                      connect_context->pg);
-      GNUNET_free(connect_context);
-    }
-}
-
+static void
+free_hello_context (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
+  {
+    struct SendHelloContext *send_hello_context = cls;
+    if (send_hello_context->peer->daemon->server != NULL)
+      {
+        GNUNET_CORE_disconnect(send_hello_context->peer->daemon->server);
+        send_hello_context->peer->daemon->server = NULL;
+      }
+    if (send_hello_context->peer->daemon->th != NULL)
+      {
+        GNUNET_TRANSPORT_disconnect(send_hello_context->peer->daemon->th);
+        send_hello_context->peer->daemon->th = NULL;
+      }
+    if (send_hello_context->core_connect_task != GNUNET_SCHEDULER_NO_TASK)
+      {
+        GNUNET_SCHEDULER_cancel(send_hello_context->core_connect_task);
+        send_hello_context->core_connect_task = GNUNET_SCHEDULER_NO_TASK;
+      }
+    send_hello_context->pg->outstanding_connects--;
+    GNUNET_free(send_hello_context);
+  }
 
 /**
- * Iterator for actually scheduling connections to be created
- * between two peers.
- *
- * @param cls closure, a GNUNET_TESTING_Daemon
- * @param key the key the second Daemon was stored under
- * @param value the GNUNET_TESTING_Daemon that the first is to connect to
+ * For peers that haven't yet connected, notify
+ * the caller that they have failed (timeout).
  *
- * @return GNUNET_YES to continue iteration
+ * @param cls the 'struct SendHelloContext *'
+ * @param tc scheduler context
  */
-static int
-connect_iterator (void *cls,
-                  const GNUNET_HashCode * key,
-                  void *value)
-{
-  struct PeerData *first = cls;
-  struct GNUNET_TESTING_Daemon *second = value;
-  struct ConnectContext *connect_context;
+static void
+notify_remaining_connections_failed (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
+  {
+    struct SendHelloContext *send_hello_context = cls;
+    struct GNUNET_TESTING_PeerGroup *pg = send_hello_context->pg;
+    struct PeerConnection *connection;
 
-  connect_context = GNUNET_malloc(sizeof(struct ConnectContext));
-  connect_context->pg = first->pg;
-  connect_context->first = first->daemon;
-  connect_context->second = second;
-  GNUNET_SCHEDULER_add_now(first->pg->sched, &schedule_connect, connect_context);
+    GNUNET_CORE_disconnect(send_hello_context->peer->daemon->server);
+    send_hello_context->peer->daemon->server = NULL;
 
-  return GNUNET_YES;
-}
+    connection = send_hello_context->peer->connect_peers_head;
 
+    while (connection != NULL)
+      {
+        if (pg->notify_connection != NULL)
+          {
+            pg->notify_connection(pg->notify_connection_cls,
+                &send_hello_context->peer->daemon->id,
+                &pg->peers[connection->index].daemon->id,
+                0, /* FIXME */
+                send_hello_context->peer->daemon->cfg,
+                pg->peers[connection->index].daemon->cfg,
+                send_hello_context->peer->daemon,
+                pg->peers[connection->index].daemon,
+                "Peers failed to connect (timeout)");
+          }
+        GNUNET_CONTAINER_DLL_remove(send_hello_context->peer->connect_peers_head, send_hello_context->peer->connect_peers_tail, connection);
+        GNUNET_free(connection);
+        connection = connection->next;
+      }
+    GNUNET_SCHEDULER_add_now(&free_hello_context, send_hello_context);
+#if BAD
+    other_peer = &pg->peers[connection->index];
+#endif
+  }
 
 /**
- * Iterator for copying all entries in the allowed hashmap to the
- * connect hashmap.
- *
- * @param cls closure, a GNUNET_TESTING_Daemon
- * @param key the key the second Daemon was stored under
- * @param value the GNUNET_TESTING_Daemon that the first is to connect to
+ * For peers that haven't yet connected, send
+ * CORE connect requests.
  *
- * @return GNUNET_YES to continue iteration
+ * @param cls the 'struct SendHelloContext *'
+ * @param tc scheduler context
  */
-static int
-copy_topology_iterator (void *cls,
-                  const GNUNET_HashCode * key,
-                  void *value)
-{
-  struct PeerData *first = cls;
+static void
+send_core_connect_requests (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
+  {
+    struct SendHelloContext *send_hello_context = cls;
+    struct PeerConnection *conn;
+    GNUNET_assert(send_hello_context->peer->daemon->server != NULL);
 
-  GNUNET_assert(GNUNET_OK == GNUNET_CONTAINER_multihashmap_put(first->connect_peers, key, value, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY));
+    send_hello_context->core_connect_task = GNUNET_SCHEDULER_NO_TASK;
 
-  return GNUNET_YES;
-}
+    send_hello_context->connect_attempts++;
+    if (send_hello_context->connect_attempts < send_hello_context->pg->ct_ctx.connect_attempts)
+      {
+        conn = send_hello_context->peer->connect_peers_head;
+        while (conn != NULL)
+          {
+            GNUNET_CORE_peer_request_connect(send_hello_context->peer->daemon->server,
+                &send_hello_context->pg->peers[conn->index].daemon->id,
+                NULL,
+                NULL);
+            conn = conn->next;
+          }
+        send_hello_context->core_connect_task = GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_divide(send_hello_context->pg->ct_ctx.connect_timeout, send_hello_context->pg->ct_ctx.connect_attempts) ,
+            &send_core_connect_requests,
+            send_hello_context);
+      }
+    else
+      {
+        GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Timeout before all connections created, marking rest as failed!\n");
+        GNUNET_SCHEDULER_add_now(&notify_remaining_connections_failed, send_hello_context);
+      }
+
+  }
 
 /**
- * Make the peers to connect the same as those that are allowed to be
- * connected.
+ * Success, connection is up.  Signal client our success.
  *
- * @param pg the peer group
+ * @param cls our "struct SendHelloContext"
+ * @param peer identity of the peer that has connected
+ * @param atsi performance information
+ *
+ * FIXME: remove peers from BOTH lists, call notify twice, should
+ * double the speed of connections as long as the list iteration
+ * doesn't take too long!
  */
-static int
-copy_allowed_topology (struct GNUNET_TESTING_PeerGroup *pg)
-{
-  unsigned int pg_iter;
-  int ret;
-  int total;
+static void
+core_connect_notify (void *cls,
+    const struct GNUNET_PeerIdentity *peer,
+    const struct GNUNET_TRANSPORT_ATS_Information *atsi)
+  {
+    struct SendHelloContext *send_hello_context = cls;
+    struct PeerConnection *connection;
+    struct GNUNET_TESTING_PeerGroup *pg = send_hello_context->pg;
+#if BAD
+    struct PeerData *other_peer;
+#endif
+#if DEBUG_TESTING
+    GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
+        "Connected peer %s to peer %s\n",
+        ctx->d1->shortname, GNUNET_i2s(peer));
+#endif
 
-  total = 0;
-  for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
-    {
-      ret = GNUNET_CONTAINER_multihashmap_iterate(pg->peers[pg_iter].allowed_peers, &copy_topology_iterator, &pg->peers[pg_iter]);
-      if (GNUNET_SYSERR == ret)
-        return GNUNET_SYSERR;
+    if (0 == memcmp(&send_hello_context->peer->daemon->id, peer, sizeof(struct GNUNET_PeerIdentity)))
+    return;
 
-      total = total + ret;
-    }
+    connection = send_hello_context->peer->connect_peers_head;
+#if BAD
+    other_peer = NULL;
+#endif
 
-  return total;
-}
+    while ((connection != NULL) &&
+        (0 != memcmp(&pg->peers[connection->index].daemon->id, peer, sizeof(struct GNUNET_PeerIdentity))))
+      {
+        connection = connection->next;
+      }
+
+    if (connection == NULL)
+      {
+        GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Connected peer %s to %s, not in list (no problem(?))\n", GNUNET_i2s(peer), send_hello_context->peer->daemon->shortname);
+      }
+    else
+      {
+#if BAD
+        other_peer = &pg->peers[connection->index];
+#endif
+        if (pg->notify_connection != NULL)
+          {
+            pg->notify_connection(pg->notify_connection_cls,
+                &send_hello_context->peer->daemon->id,
+                peer,
+                0, /* FIXME */
+                send_hello_context->peer->daemon->cfg,
+                pg->peers[connection->index].daemon->cfg,
+                send_hello_context->peer->daemon,
+                pg->peers[connection->index].daemon,
+                NULL);
+          }
+        GNUNET_CONTAINER_DLL_remove(send_hello_context->peer->connect_peers_head, send_hello_context->peer->connect_peers_tail, connection);
+        GNUNET_free(connection);
+      }
+
+#if BAD
+    /* Notify of reverse connection and remove from other peers list of outstanding */
+    if (other_peer != NULL)
+      {
+        connection = other_peer->connect_peers_head;
+        while ((connection != NULL) &&
+            (0 != memcmp(&send_hello_context->peer->daemon->id, &pg->peers[connection->index].daemon->id, sizeof(struct GNUNET_PeerIdentity))))
+          {
+            connection = connection->next;
+          }
+        if (connection != NULL)
+          {
+            if (pg->notify_connection != NULL)
+              {
+                pg->notify_connection(pg->notify_connection_cls,
+                    peer,
+                    &send_hello_context->peer->daemon->id,
+                    0, /* FIXME */
+                    pg->peers[connection->index].daemon->cfg,
+                    send_hello_context->peer->daemon->cfg,
+                    pg->peers[connection->index].daemon,
+                    send_hello_context->peer->daemon,
+                    NULL);
+              }
+
+            GNUNET_CONTAINER_DLL_remove(other_peer->connect_peers_head, other_peer->connect_peers_tail, connection);
+            GNUNET_free(connection);
+          }
+      }
+#endif
 
+    if (send_hello_context->peer->connect_peers_head == NULL)
+      {
+        GNUNET_SCHEDULER_add_now(&free_hello_context, send_hello_context);
+      }
+  }
 
 /**
- * Connect the topology as specified by the PeerConnection's
- * of each peer in the peer group
+ * Notify of a successful connection to the core service.
  *
- * @param pg the peer group we are dealing with
- * @return the number of connections that will be attempted
+ * @param cls a struct SendHelloContext *
+ * @param server handle to the core service
+ * @param my_identity the peer identity of this peer
+ * @param publicKey the public key of the peer
  */
-static int
-connect_topology (struct GNUNET_TESTING_PeerGroup *pg)
-{
-  unsigned int pg_iter;
-  int ret;
+void
+core_init (void *cls,
+    struct GNUNET_CORE_Handle * server,
+    const struct GNUNET_PeerIdentity *
+    my_identity,
+    const struct
+    GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded *
+    publicKey)
+  {
+    struct SendHelloContext *send_hello_context = cls;
+    send_hello_context->core_ready = GNUNET_YES;
+  }
+
+/**
+ * Function called once a hello has been sent
+ * to the transport, move on to the next one
+ * or go away forever.
+ *
+ * @param cls the 'struct SendHelloContext *'
+ * @param tc scheduler context
+ */
+static void
+hello_sent_callback (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
+  {
+    struct SendHelloContext *send_hello_context = cls;
+    //unsigned int pg_iter;
+    if ( (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN) != 0)
+      {
+        GNUNET_free(send_hello_context);
+        return;
+      }
+
+    send_hello_context->pg->remaining_hellos--;
+#if DEBUG_TESTING
+    GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Sent HELLO, have %d remaining!\n", send_hello_context->pg->remaining_hellos);
+#endif
+    if (send_hello_context->peer_pos == NULL) /* All HELLOs (for this peer!) have been transmitted! */
+      {
+#if DEBUG_TESTING
+        GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "All hellos for this peer sent, disconnecting transport!\n");
+#endif
+        GNUNET_assert(send_hello_context->peer->daemon->th != NULL);
+        GNUNET_TRANSPORT_disconnect(send_hello_context->peer->daemon->th);
+        send_hello_context->peer->daemon->th = NULL;
+
+        /*if (send_hello_context->pg->remaining_hellos == 0)
+         {
+         for (pg_iter = 0; pg_iter < send_hello_context->pg->max_outstanding_connections; pg_iter++)
+         {
+         preschedule_connect(&send_hello_context->pg->ct_ctx);
+         }
+         }
+         */
+        GNUNET_assert (send_hello_context->peer->daemon->server == NULL);
+        send_hello_context->peer->daemon->server = GNUNET_CORE_connect(send_hello_context->peer->cfg,
+            1,
+            send_hello_context,
+            &core_init,
+            &core_connect_notify,
+            NULL,
+            NULL,
+            NULL, GNUNET_NO,
+            NULL, GNUNET_NO,
+            no_handlers);
+
+        send_hello_context->core_connect_task = GNUNET_SCHEDULER_add_delayed(GNUNET_TIME_relative_divide(send_hello_context->pg->ct_ctx.connect_timeout, send_hello_context->pg->ct_ctx.connect_attempts),
+            &send_core_connect_requests,
+            send_hello_context);
+      }
+    else
+    GNUNET_SCHEDULER_add_now(&schedule_send_hellos, send_hello_context);
+  }
+
+/**
+ * Connect to a peer, give it all the HELLO's of those peers
+ * we will later ask it to connect to.
+ *
+ * @param ct_ctx the overall connection context
+ */
+static void schedule_send_hellos (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
+  {
+    struct SendHelloContext *send_hello_context = cls;
+    struct GNUNET_TESTING_PeerGroup *pg = send_hello_context->pg;
+
+    if ( (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN) != 0)
+      {
+        GNUNET_free(send_hello_context);
+        return;
+      }
+
+    GNUNET_assert(send_hello_context->peer_pos != NULL); /* All of the HELLO sends to be scheduled have been scheduled! */
+
+    if (((send_hello_context->peer->daemon->th == NULL) &&
+            (pg->outstanding_connects > pg->max_outstanding_connections)) ||
+        (pg->stop_connects == GNUNET_YES))
+      {
+#if VERBOSE_TESTING > 2
+        GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+            _
+            ("Delaying connect, we have too many outstanding connections!\n"));
+#endif
+        GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply
+            (GNUNET_TIME_UNIT_MILLISECONDS, 100),
+            &schedule_send_hellos, send_hello_context);
+      }
+    else
+      {
+#if VERBOSE_TESTING > 2
+        GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+            _("Creating connection, outstanding_connections is %d\n"),
+            outstanding_connects);
+#endif
+        if (send_hello_context->peer->daemon->th == NULL)
+          {
+            pg->outstanding_connects++; /* Actual TRANSPORT, CORE connections! */
+            send_hello_context->peer->daemon->th
+                = GNUNET_TRANSPORT_connect (send_hello_context->peer->cfg, NULL,
+                                            send_hello_context, NULL, NULL, NULL);
+          }
+#if DEBUG_TESTING
+        GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
+            _("Offering Hello of peer %s to peer %s\n"),
+            send_hello_context->peer->daemon->shortname, pg->peers[send_hello_context->peer_pos->index].daemon->shortname);
+#endif
+        GNUNET_TRANSPORT_offer_hello(send_hello_context->peer->daemon->th,
+            (const struct GNUNET_MessageHeader *)pg->peers[send_hello_context->peer_pos->index].daemon->hello,
+            &hello_sent_callback,
+            send_hello_context);
+        send_hello_context->peer_pos = send_hello_context->peer_pos->next;
+        GNUNET_assert(send_hello_context->peer->daemon->th != NULL);
+      }
+  }
+#endif
+
+/**
+ * Internal notification of a connection, kept so that we can ensure some connections
+ * happen instead of flooding all testing daemons with requests to connect.
+ */
+static void
+internal_connect_notify(void *cls, const struct GNUNET_PeerIdentity *first,
+                        const struct GNUNET_PeerIdentity *second,
+                        uint32_t distance,
+                        const struct GNUNET_CONFIGURATION_Handle *first_cfg,
+                        const struct GNUNET_CONFIGURATION_Handle *second_cfg,
+                        struct GNUNET_TESTING_Daemon *first_daemon,
+                        struct GNUNET_TESTING_Daemon *second_daemon,
+                        const char *emsg)
+{
+  struct ConnectContext *connect_ctx = cls;
+  struct ConnectTopologyContext *ct_ctx = connect_ctx->ct_ctx;
+  struct GNUNET_TESTING_PeerGroup *pg = ct_ctx->pg;
+  struct PeerConnection *connection;
+
+  GNUNET_assert (0 < pg->outstanding_connects);
+  pg->outstanding_connects--;
+
+  /*
+   * Check whether the inverse connection has been scheduled yet,
+   * if not, we can remove it from the other peers list and avoid
+   * even trying to connect them again!
+   */
+  connection = pg->peers[connect_ctx->second_index].connect_peers_head;
+#if BAD
+  other_peer = NULL;
+#endif
+
+  while ((connection != NULL) && (0
+      != memcmp (first, &pg->peers[connection->index].daemon->id,
+                 sizeof(struct GNUNET_PeerIdentity))))
+    {
+      connection = connection->next;
+    }
+
+  if (connection != NULL) /* Can safely remove! */
+    {
+      GNUNET_assert (0 < ct_ctx->remaining_connections);
+      ct_ctx->remaining_connections--;
+      if (pg->notify_connection != NULL) /* Notify of reverse connection */
+        pg->notify_connection (pg->notify_connection_cls, second, first,
+                               distance, second_cfg, first_cfg, second_daemon,
+                               first_daemon, emsg);
+
+      GNUNET_CONTAINER_DLL_remove(pg->peers[connect_ctx->second_index].connect_peers_head, pg->peers[connect_ctx->second_index].connect_peers_tail, connection);
+      GNUNET_free(connection);
+    }
+
+  if (ct_ctx->remaining_connections == 0)
+    {
+      if (ct_ctx->notify_connections_done != NULL)
+       {
+         ct_ctx->notify_connections_done (ct_ctx->notify_cls, NULL);
+         ct_ctx->notify_connections_done = NULL;
+       }
+    }
+  else
+    preschedule_connect (pg);
+
+  if (pg->notify_connection != NULL)
+    pg->notify_connection (pg->notify_connection_cls, first, second, distance,
+                           first_cfg, second_cfg, first_daemon, second_daemon,
+                           emsg);
+
+  GNUNET_free(connect_ctx);
+}
+
+/**
+ * Either delay a connection (because there are too many outstanding)
+ * or schedule it for right now.
+ *
+ * @param cls a connection context
+ * @param tc the task runtime context
+ */
+static void
+schedule_connect(void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
+{
+  struct ConnectContext *connect_context = cls;
+  struct GNUNET_TESTING_PeerGroup *pg = connect_context->ct_ctx->pg;
+
+  if ( (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN) != 0)
+    return;
+
+  if ((pg->outstanding_connects > pg->max_outstanding_connections)
+      || (pg->stop_connects == GNUNET_YES))
+    {
+#if VERBOSE_TESTING
+      GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
+          _
+          ("Delaying connect, we have too many outstanding connections!\n"));
+#endif
+      GNUNET_SCHEDULER_add_delayed (
+                                    GNUNET_TIME_relative_multiply (
+                                                                   GNUNET_TIME_UNIT_MILLISECONDS,
+                                                                   100),
+                                    &schedule_connect, connect_context);
+    }
+  else
+    {
+#if VERBOSE_TESTING
+      GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
+          _("Creating connection, outstanding_connections is %d (max %d)\n"),
+          pg->outstanding_connects, pg->max_outstanding_connections);
+#endif
+      pg->outstanding_connects++;
+      pg->total_connects_scheduled++;
+      GNUNET_TESTING_daemons_connect (
+                                      pg->peers[connect_context->first_index].daemon,
+                                      pg->peers[connect_context->second_index].daemon,
+                                      connect_context->ct_ctx->connect_timeout,
+                                      connect_context->ct_ctx->connect_attempts,
+#if USE_SEND_HELLOS
+                                      GNUNET_NO,
+#else
+                                      GNUNET_YES,
+#endif
+                                      &internal_connect_notify, connect_context); /* FIXME: free connect context! */
+    }
+}
+
+#if !OLD
+/**
+ * Iterator for actually scheduling connections to be created
+ * between two peers.
+ *
+ * @param cls closure, a GNUNET_TESTING_Daemon
+ * @param key the key the second Daemon was stored under
+ * @param value the GNUNET_TESTING_Daemon that the first is to connect to
+ *
+ * @return GNUNET_YES to continue iteration
+ */
+static int
+connect_iterator (void *cls, const GNUNET_HashCode * key, void *value)
+  {
+    struct ConnectTopologyContext *ct_ctx = cls;
+    struct PeerData *first = ct_ctx->first;
+    struct GNUNET_TESTING_Daemon *second = value;
+    struct ConnectContext *connect_context;
+
+    connect_context = GNUNET_malloc (sizeof (struct ConnectContext));
+    connect_context->first = first->daemon;
+    connect_context->second = second;
+    connect_context->ct_ctx = ct_ctx;
+    GNUNET_SCHEDULER_add_now (&schedule_connect, connect_context);
+
+    return GNUNET_YES;
+  }
+#endif
+
+#if !OLD
+/**
+ * Iterator for copying all entries in the allowed hashmap to the
+ * connect hashmap.
+ *
+ * @param cls closure, a GNUNET_TESTING_Daemon
+ * @param key the key the second Daemon was stored under
+ * @param value the GNUNET_TESTING_Daemon that the first is to connect to
+ *
+ * @return GNUNET_YES to continue iteration
+ */
+static int
+copy_topology_iterator (void *cls, const GNUNET_HashCode * key, void *value)
+  {
+    struct PeerData *first = cls;
+
+    GNUNET_assert (GNUNET_OK ==
+        GNUNET_CONTAINER_multihashmap_put (first->connect_peers, key,
+            value,
+            GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY));
+
+    return GNUNET_YES;
+  }
+#endif
+
+/**
+ * Make the peers to connect the same as those that are allowed to be
+ * connected.
+ *
+ * @param pg the peer group
+ */
+static int
+copy_allowed_topology(struct GNUNET_TESTING_PeerGroup *pg)
+{
+  unsigned int pg_iter;
+  int ret;
   int total;
 #if OLD
-  struct PeerConnection *connection_iter;
-  struct ConnectContext *connect_context;
+  struct PeerConnection *iter;
 #endif
-
   total = 0;
+  ret = 0;
   for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
     {
-      ret = GNUNET_CONTAINER_multihashmap_iterate(pg->peers[pg_iter].connect_peers, &connect_iterator, &pg->peers[pg_iter]);
+#if OLD
+      iter = pg->peers[pg_iter].allowed_peers_head;
+      while (iter != NULL)
+        {
+          GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+                      "Creating connection between %d and %d\n", pg_iter,
+                      iter->index);
+          total += add_connections (pg, pg_iter, iter->index, CONNECT,
+                                    GNUNET_YES);
+          //total += add_actual_connections(pg, pg_iter, iter->index);
+          iter = iter->next;
+        }
+#else
+      ret =
+      GNUNET_CONTAINER_multihashmap_iterate (pg->
+          peers[pg_iter].allowed_peers,
+          &copy_topology_iterator,
+          &pg->peers[pg_iter]);
+#endif
       if (GNUNET_SYSERR == ret)
         return GNUNET_SYSERR;
 
       total = total + ret;
+    }
+
+  return total;
+}
+
+/**
+ * Connect the topology as specified by the PeerConnection's
+ * of each peer in the peer group
+ *
+ * @param pg the peer group we are dealing with
+ * @param connect_timeout how long try connecting two peers
+ * @param connect_attempts how many times (max) to attempt
+ * @param notify_callback callback to notify when finished
+ * @param notify_cls closure for notify callback
+ *
+ * @return the number of connections that will be attempted
+ */
+static int
+connect_topology(struct GNUNET_TESTING_PeerGroup *pg,
+                 struct GNUNET_TIME_Relative connect_timeout,
+                 unsigned int connect_attempts,
+                 GNUNET_TESTING_NotifyCompletion notify_callback,
+                 void *notify_cls)
+{
+  unsigned int pg_iter;
+  unsigned int total;
+
+#if OLD
+  struct PeerConnection *connection_iter;
+#endif
+#if USE_SEND_HELLOS
+  struct SendHelloContext *send_hello_context;
+#endif
+
+  total = 0;
+  pg->ct_ctx.notify_connections_done = notify_callback;
+  pg->ct_ctx.notify_cls = notify_cls;
+  pg->ct_ctx.pg = pg;
 
+  for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
+    {
 #if OLD
-      connection_iter = ;
+      connection_iter = pg->peers[pg_iter].connect_peers_head;
       while (connection_iter != NULL)
         {
-          connect_context = GNUNET_malloc(sizeof(struct ConnectContext));
-          connect_context->pg = pg;
-          connect_context->first = ;
-          connect_context->second = connection_iter->daemon;
-          GNUNET_SCHEDULER_add_now(pg->sched, &schedule_connect, connect_context);
           connection_iter = connection_iter->next;
+          total++;
         }
+#else
+      total +=
+      GNUNET_CONTAINER_multihashmap_size (pg->peers[pg_iter].connect_peers);
 #endif
     }
+
+  if (total == 0)
+    return total;
+
+  pg->ct_ctx.connect_timeout = connect_timeout;
+  pg->ct_ctx.connect_attempts = connect_attempts;
+  pg->ct_ctx.remaining_connections = total;
+
+#if USE_SEND_HELLOS
+  /* First give all peers the HELLO's of other peers (connect to first peer's transport service, give HELLO's of other peers, continue...) */
+  pg->remaining_hellos = total;
+  for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
+    {
+      send_hello_context = GNUNET_malloc(sizeof(struct SendHelloContext));
+      send_hello_context->peer = &pg->peers[pg_iter];
+      send_hello_context->peer_pos = pg->peers[pg_iter].connect_peers_head;
+      send_hello_context->pg = pg;
+      GNUNET_SCHEDULER_add_now(&schedule_send_hellos, send_hello_context);
+    }
+#else
+  for (pg_iter = 0; pg_iter < pg->max_outstanding_connections; pg_iter++)
+    {
+      preschedule_connect (pg);
+    }
+#endif
   return total;
-}
 
+}
 
 /**
  * Takes a peer group and creates a topology based on the
@@ -2338,12 +3822,13 @@ connect_topology (struct GNUNET_TESTING_PeerGroup *pg)
  * by the topology.  This will only have an effect once peers
  * are started if the FRIENDS_ONLY option is set in the base
  * config.  Also takes an optional restrict topology which
- * disallows connections based on a particular transport
+ * disallows connections based on particular transports
  * UNLESS they are specified in the restricted topology.
  *
  * @param pg the peer group struct representing the running peers
  * @param topology which topology to connect the peers in
- * @param restrict_topology allow only direct TCP connections in this topology
+ * @param restrict_topology disallow restrict_transports transport
+ *                          connections to peers NOT in this topology
  *                          use GNUNET_TESTING_TOPOLOGY_NONE for no restrictions
  * @param restrict_transports space delimited list of transports to blacklist
  *                            to create restricted topology
@@ -2351,309 +3836,301 @@ connect_topology (struct GNUNET_TESTING_PeerGroup *pg)
  * @return the maximum number of connections were all allowed peers
  *         connected to each other
  */
-int
-GNUNET_TESTING_create_topology (struct GNUNET_TESTING_PeerGroup *pg,
-                                enum GNUNET_TESTING_Topology topology,
-                                enum GNUNET_TESTING_Topology restrict_topology,
-                                char *restrict_transports)
+unsigned int
+GNUNET_TESTING_create_topology(struct GNUNET_TESTING_PeerGroup *pg,
+                               enum GNUNET_TESTING_Topology topology,
+                               enum GNUNET_TESTING_Topology restrict_topology,
+                               const char *restrict_transports)
 {
   int ret;
-  int num_connections;
+
+  unsigned int num_connections;
   int unblacklisted_connections;
+  char *filename;
+  struct PeerConnection *conn_iter;
+  struct PeerConnection *temp_conn;
+  unsigned int off;
 
-  GNUNET_assert (pg->notify_connection != NULL);
+#if !OLD
+  unsigned int i;
+  for (i = 0; i < pg->total; i++)
+    {
+      pg->peers[i].allowed_peers =
+      GNUNET_CONTAINER_multihashmap_create (100);
+      pg->peers[i].connect_peers =
+      GNUNET_CONTAINER_multihashmap_create (100);
+      pg->peers[i].blacklisted_peers =
+      GNUNET_CONTAINER_multihashmap_create (100);
+      pg->peers[i].pg = pg;
+    }
+#endif
 
   switch (topology)
     {
-    case GNUNET_TESTING_TOPOLOGY_CLIQUE:
+  case GNUNET_TESTING_TOPOLOGY_CLIQUE:
 #if VERBOSE_TESTING
-      GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-                  _("Creating clique topology\n"));
+    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, _("Creating clique topology\n"));
 #endif
-      num_connections = create_clique (pg, &add_allowed_connections);
-      break;
-    case GNUNET_TESTING_TOPOLOGY_SMALL_WORLD_RING:
+    num_connections = create_clique (pg, &add_connections, ALLOWED, GNUNET_NO);
+    break;
+  case GNUNET_TESTING_TOPOLOGY_SMALL_WORLD_RING:
 #if VERBOSE_TESTING
-      GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-                  _("Creating small world (ring) topology\n"));
+    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+        _("Creating small world (ring) topology\n"));
 #endif
-      num_connections = create_small_world_ring (pg, &add_allowed_connections);
-      break;
-    case GNUNET_TESTING_TOPOLOGY_SMALL_WORLD:
+    num_connections = create_small_world_ring (pg, &add_connections, ALLOWED);
+    break;
+  case GNUNET_TESTING_TOPOLOGY_SMALL_WORLD:
 #if VERBOSE_TESTING
-      GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-                  _("Creating small world (2d-torus) topology\n"));
+    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+        _("Creating small world (2d-torus) topology\n"));
 #endif
-      num_connections = create_small_world (pg, &add_allowed_connections);
-      break;
-    case GNUNET_TESTING_TOPOLOGY_RING:
+    num_connections = create_small_world (pg, &add_connections, ALLOWED);
+    break;
+  case GNUNET_TESTING_TOPOLOGY_RING:
 #if VERBOSE_TESTING
-      GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-                  _("Creating ring topology\n"));
+    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, _("Creating ring topology\n"));
 #endif
-      num_connections = create_ring (pg, &add_allowed_connections);
-      break;
-    case GNUNET_TESTING_TOPOLOGY_2D_TORUS:
+    num_connections = create_ring (pg, &add_connections, ALLOWED);
+    break;
+  case GNUNET_TESTING_TOPOLOGY_2D_TORUS:
 #if VERBOSE_TESTING
-      GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-                  _("Creating 2d torus topology\n"));
+    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, _("Creating 2d torus topology\n"));
 #endif
-      num_connections = create_2d_torus (pg, &add_allowed_connections);
-      break;
-    case GNUNET_TESTING_TOPOLOGY_ERDOS_RENYI:
+    num_connections = create_2d_torus (pg, &add_connections, ALLOWED);
+    break;
+  case GNUNET_TESTING_TOPOLOGY_ERDOS_RENYI:
 #if VERBOSE_TESTING
-      GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-                  _("Creating Erdos-Renyi topology\n"));
+    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+        _("Creating Erdos-Renyi topology\n"));
 #endif
-      num_connections = create_erdos_renyi (pg, &add_allowed_connections);
-      break;
-    case GNUNET_TESTING_TOPOLOGY_INTERNAT:
+    num_connections = create_erdos_renyi (pg, &add_connections, ALLOWED);
+    break;
+  case GNUNET_TESTING_TOPOLOGY_INTERNAT:
 #if VERBOSE_TESTING
-      GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-                  _("Creating InterNAT topology\n"));
+    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, _("Creating InterNAT topology\n"));
 #endif
-      num_connections = create_nated_internet (pg, &add_allowed_connections);
-      break;
-    case GNUNET_TESTING_TOPOLOGY_SCALE_FREE:
+    num_connections = create_nated_internet (pg, &add_connections, ALLOWED);
+    break;
+  case GNUNET_TESTING_TOPOLOGY_SCALE_FREE:
 #if VERBOSE_TESTING
-      GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-                  _("Creating Scale Free topology\n"));
+    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+        _("Creating Scale Free topology\n"));
 #endif
-      num_connections = create_scale_free (pg, &add_allowed_connections);
-      break;
-    case GNUNET_TESTING_TOPOLOGY_LINE:
+    num_connections = create_scale_free (pg, &add_connections, ALLOWED);
+    break;
+  case GNUNET_TESTING_TOPOLOGY_LINE:
 #if VERBOSE_TESTING
-      GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-                  _("Creating straight line topology\n"));
+    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+        _("Creating straight line topology\n"));
 #endif
-      num_connections = create_line (pg, &add_allowed_connections);
-      break;
-    case GNUNET_TESTING_TOPOLOGY_NONE:
+    num_connections = create_line (pg, &add_connections, ALLOWED);
+    break;
+  case GNUNET_TESTING_TOPOLOGY_FROM_FILE:
 #if VERBOSE_TESTING
-      GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-                  _("Creating no allowed topology (all peers can connect at core level)\n"));
+    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+        _("Creating topology from file!\n"));
+#endif
+    if (GNUNET_OK == GNUNET_CONFIGURATION_get_value_string (pg->cfg, "testing",
+                                                            "topology_file",
+                                                            &filename))
+      num_connections = create_from_file (pg, filename, &add_connections,
+                                          ALLOWED);
+    else
+      {
+        GNUNET_log (
+                    GNUNET_ERROR_TYPE_WARNING,
+                    "Missing configuration option TESTING:TOPOLOGY_FILE for creating topology from file!\n");
+        num_connections = 0;
+      }
+    break;
+  case GNUNET_TESTING_TOPOLOGY_NONE:
+#if VERBOSE_TESTING
+    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+        _
+        ("Creating no allowed topology (all peers can connect at core level)\n"));
 #endif
-      num_connections = 0;
-      break;
-    default:
-      num_connections = 0;
-      break;
+    num_connections = pg->total * pg->total; /* Clique is allowed! */
+    break;
+  default:
+    num_connections = 0;
+    break;
     }
 
-  if (num_connections < 0)
-    return GNUNET_SYSERR;
-
-  if (GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno (pg->cfg, "TESTING", "F2F"))
+  if (GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno (pg->cfg, "TESTING",
+                                                          "F2F"))
     {
-      ret = create_and_copy_friend_files(pg);
+      ret = create_and_copy_friend_files (pg);
       if (ret != GNUNET_OK)
         {
 #if VERBOSE_TESTING
           GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-                      _("Failed during friend file copying!\n"));
+              _("Failed during friend file copying!\n"));
 #endif
           return GNUNET_SYSERR;
         }
       else
         {
 #if VERBOSE_TESTING
-              GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-                          _("Friend files created/copied successfully!\n"));
+          GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+              _("Friend files created/copied successfully!\n"));
 #endif
         }
     }
 
   /* Use the create clique method to initially set all connections as blacklisted. */
-  if (restrict_topology != GNUNET_TESTING_TOPOLOGY_NONE)
-    create_clique (pg, &blacklist_connections);
+  if ((restrict_topology != GNUNET_TESTING_TOPOLOGY_NONE) && (restrict_topology
+      != GNUNET_TESTING_TOPOLOGY_FROM_FILE))
+    create_clique (pg, &add_connections, BLACKLIST, GNUNET_NO);
+  else
+    return num_connections;
+
   unblacklisted_connections = 0;
   /* Un-blacklist connections as per the topology specified */
   switch (restrict_topology)
     {
-    case GNUNET_TESTING_TOPOLOGY_CLIQUE:
+  case GNUNET_TESTING_TOPOLOGY_CLIQUE:
 #if VERBOSE_TESTING
-      GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-                  _("Blacklisting all but clique topology\n"));
+    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+        _("Blacklisting all but clique topology\n"));
 #endif
-      unblacklisted_connections = create_clique (pg, &unblacklist_connections);
-      break;
-    case GNUNET_TESTING_TOPOLOGY_SMALL_WORLD_RING:
+    unblacklisted_connections = create_clique (pg, &remove_connections,
+                                               BLACKLIST, GNUNET_NO);
+    break;
+  case GNUNET_TESTING_TOPOLOGY_SMALL_WORLD_RING:
 #if VERBOSE_TESTING
-      GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-                  _("Blacklisting all but small world (ring) topology\n"));
+    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+        _("Blacklisting all but small world (ring) topology\n"));
 #endif
-      unblacklisted_connections = create_small_world_ring (pg, &unblacklist_connections);
-      break;
-    case GNUNET_TESTING_TOPOLOGY_SMALL_WORLD:
+    unblacklisted_connections = create_small_world_ring (pg,
+                                                         &remove_connections,
+                                                         BLACKLIST);
+    break;
+  case GNUNET_TESTING_TOPOLOGY_SMALL_WORLD:
 #if VERBOSE_TESTING
-      GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-                  _("Blacklisting all but small world (2d-torus) topology\n"));
+    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+        _
+        ("Blacklisting all but small world (2d-torus) topology\n"));
 #endif
-      unblacklisted_connections = create_small_world (pg, &unblacklist_connections);
-      break;
-    case GNUNET_TESTING_TOPOLOGY_RING:
+    unblacklisted_connections = create_small_world (pg, &remove_connections,
+                                                    BLACKLIST);
+    break;
+  case GNUNET_TESTING_TOPOLOGY_RING:
 #if VERBOSE_TESTING
-      GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-                  _("Blacklisting all but ring topology\n"));
+    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+        _("Blacklisting all but ring topology\n"));
 #endif
-      unblacklisted_connections = create_ring (pg, &unblacklist_connections);
-      break;
-    case GNUNET_TESTING_TOPOLOGY_2D_TORUS:
+    unblacklisted_connections
+        = create_ring (pg, &remove_connections, BLACKLIST);
+    break;
+  case GNUNET_TESTING_TOPOLOGY_2D_TORUS:
 #if VERBOSE_TESTING
-      GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-                  _("Blacklisting all but 2d torus topology\n"));
+    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+        _("Blacklisting all but 2d torus topology\n"));
 #endif
-      unblacklisted_connections = create_2d_torus (pg, &unblacklist_connections);
-      break;
-    case GNUNET_TESTING_TOPOLOGY_ERDOS_RENYI:
+    unblacklisted_connections = create_2d_torus (pg, &remove_connections,
+                                                 BLACKLIST);
+    break;
+  case GNUNET_TESTING_TOPOLOGY_ERDOS_RENYI:
 #if VERBOSE_TESTING
-      GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-                  _("Blacklisting all but Erdos-Renyi topology\n"));
+    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+        _("Blacklisting all but Erdos-Renyi topology\n"));
 #endif
-      unblacklisted_connections = create_erdos_renyi (pg, &unblacklist_connections);
-      break;
-    case GNUNET_TESTING_TOPOLOGY_INTERNAT:
+    unblacklisted_connections = create_erdos_renyi (pg, &remove_connections,
+                                                    BLACKLIST);
+    break;
+  case GNUNET_TESTING_TOPOLOGY_INTERNAT:
 #if VERBOSE_TESTING
-      GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-                  _("Blacklisting all but InterNAT topology\n"));
+    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+        _("Blacklisting all but InterNAT topology\n"));
 #endif
-      unblacklisted_connections = create_nated_internet (pg, &unblacklist_connections);
-      break;
-    case GNUNET_TESTING_TOPOLOGY_SCALE_FREE:
+
+#if TOPOLOGY_HACK
+    for (off = 0; off < pg->total; off++)
+      {
+        conn_iter = pg->peers[off].allowed_peers_head;
+        while (conn_iter != NULL)
+          {
+            temp_conn = conn_iter->next;
+            GNUNET_free(conn_iter);
+            conn_iter = temp_conn;
+          }
+        pg->peers[off].allowed_peers_head = NULL;
+        pg->peers[off].allowed_peers_tail = NULL;
+
+        conn_iter = pg->peers[off].connect_peers_head;
+        while (conn_iter != NULL)
+          {
+            temp_conn = conn_iter->next;
+            GNUNET_free(conn_iter);
+            conn_iter = temp_conn;
+          }
+        pg->peers[off].connect_peers_head = NULL;
+        pg->peers[off].connect_peers_tail = NULL;
+      }
+    unblacklisted_connections
+        = create_nated_internet_copy (pg, &remove_connections, BLACKLIST);
+#else
+    unblacklisted_connections =
+    create_nated_internet (pg, &remove_connections, BLACKLIST);
+#endif
+
+    break;
+  case GNUNET_TESTING_TOPOLOGY_SCALE_FREE:
 #if VERBOSE_TESTING
-      GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-                  _("Blacklisting all but Scale Free topology\n"));
+    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+        _("Blacklisting all but Scale Free topology\n"));
 #endif
-      unblacklisted_connections = create_scale_free (pg, &unblacklist_connections);
-      break;
-    case GNUNET_TESTING_TOPOLOGY_LINE:
+    unblacklisted_connections = create_scale_free (pg, &remove_connections,
+                                                   BLACKLIST);
+    break;
+  case GNUNET_TESTING_TOPOLOGY_LINE:
 #if VERBOSE_TESTING
-      GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-                  _("Blacklisting all but straight line topology\n"));
+    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+        _("Blacklisting all but straight line topology\n"));
 #endif
-      unblacklisted_connections = create_line (pg, &unblacklist_connections);
-      break;
-    case GNUNET_TESTING_TOPOLOGY_NONE:
+    unblacklisted_connections
+        = create_line (pg, &remove_connections, BLACKLIST);
+    break;
+  case GNUNET_TESTING_TOPOLOGY_NONE: /* Fall through */
+  case GNUNET_TESTING_TOPOLOGY_FROM_FILE:
 #if VERBOSE_TESTING
-      GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-                  _("Creating no blacklist topology (all peers can connect at transport level)\n"));
+    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+        _
+        ("Creating no blacklist topology (all peers can connect at transport level)\n"));
 #endif
-    default:
-      break;
+    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, _
+    ("Creating blacklist topology from allowed\n"));
+    unblacklisted_connections = copy_allowed (pg, &remove_connections);
+  default:
+    break;
     }
 
   if ((unblacklisted_connections > 0) && (restrict_transports != NULL))
-  {
-    ret = create_and_copy_blacklist_files(pg, restrict_transports);
-    if (ret != GNUNET_OK)
-      {
+    {
+      GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Creating blacklist with `%s'\n",
+                  restrict_transports);
+      ret = create_and_copy_blacklist_files (pg, restrict_transports);
+      if (ret != GNUNET_OK)
+        {
 #if VERBOSE_TESTING
-        GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-                    _("Failed during blacklist file copying!\n"));
+          GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+              _("Failed during blacklist file copying!\n"));
 #endif
-        return GNUNET_SYSERR;
-      }
-    else
-      {
+          return 0;
+        }
+      else
+        {
 #if VERBOSE_TESTING
-        GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-                    _("Blacklist files created/copied successfully!\n"));
+          GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+              _("Blacklist files created/copied successfully!\n"));
 #endif
-      }
-  }
+        }
+    }
   return num_connections;
 }
 
-struct RandomContext
-{
-  /**
-   * The peergroup
-   */
-  struct GNUNET_TESTING_PeerGroup *pg;
-
-  /**
-   * uid of the first peer
-   */
-  uint32_t first_uid;
-
-  /**
-   * Peer data for first peer.
-   */
-  struct PeerData *first;
-
-  /**
-   * Random percentage to use
-   */
-  double percentage;
-};
-
-struct MinimumContext
-{
-  /**
-   * The peergroup
-   */
-  struct GNUNET_TESTING_PeerGroup *pg;
-
-  /**
-   * uid of the first peer
-   */
-  uint32_t first_uid;
-
-  /**
-   * Peer data for first peer.
-   */
-  struct PeerData *first;
-
-  /**
-   * Number of conns per peer
-   */
-  unsigned int num_to_add;
-
-  /**
-   * Permuted array of all possible connections.  Only add the Nth
-   * peer if it's in the Nth position.
-   */
-  unsigned int *pg_array;
-
-  /**
-   * What number is the current element we are iterating over?
-   */
-  unsigned int current;
-};
-
-struct DFSContext
-{
-  /**
-   * The peergroup
-   */
-  struct GNUNET_TESTING_PeerGroup *pg;
-
-  /**
-   * uid of the first peer
-   */
-  uint32_t first_uid;
-
-  /**
-   * uid of the second peer
-   */
-  uint32_t second_uid;
-
-  /**
-   * Peer data for first peer.
-   */
-  struct PeerData *first;
-
-  /**
-   * Which peer has been chosen as the one to add?
-   */
-  unsigned int chosen;
-
-  /**
-   * What number is the current element we are iterating over?
-   */
-  unsigned int current;
-};
-
+#if !OLD
 /**
  * Iterator for choosing random peers to connect.
  *
@@ -2664,28 +4141,39 @@ struct DFSContext
  * @return GNUNET_YES to continue iteration
  */
 static int
-random_connect_iterator (void *cls,
-                  const GNUNET_HashCode * key,
-                  void *value)
-{
-  struct RandomContext *random_ctx = cls;
-  double random_number;
-  uint32_t second_pos;
-  GNUNET_HashCode first_hash;
-  random_number = ((double) GNUNET_CRYPTO_random_u64(GNUNET_CRYPTO_QUALITY_WEAK,
-                                                    UINT64_MAX)) / ( (double) UINT64_MAX);
-  if (random_number < random_ctx->percentage)
+random_connect_iterator (void *cls, const GNUNET_HashCode * key, void *value)
   {
-    GNUNET_assert(GNUNET_OK == GNUNET_CONTAINER_multihashmap_put(random_ctx->first->connect_peers_working_set, key, value, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY));
-  }
-  /* Now we have considered this particular connection, remove it from the second peer so it's not double counted */
-  uid_from_hash(key, &second_pos);
-  hash_from_uid(random_ctx->first_uid, &first_hash);
-  GNUNET_assert(random_ctx->pg->total > second_pos);
-  GNUNET_assert(GNUNET_YES == GNUNET_CONTAINER_multihashmap_remove(random_ctx->pg->peers[second_pos].connect_peers, &first_hash, random_ctx->first->daemon));
+    struct RandomContext *random_ctx = cls;
+    double random_number;
+    uint32_t second_pos;
+    GNUNET_HashCode first_hash;
+    random_number =
+    ((double)
+        GNUNET_CRYPTO_random_u64 (GNUNET_CRYPTO_QUALITY_WEAK,
+            UINT64_MAX)) / ((double) UINT64_MAX);
+    if (random_number < random_ctx->percentage)
+      {
+        GNUNET_assert (GNUNET_OK ==
+            GNUNET_CONTAINER_multihashmap_put (random_ctx->
+                first->connect_peers_working_set,
+                key, value,
+                GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY));
+      }
 
-  return GNUNET_YES;
-}
+    /* Now we have considered this particular connection, remove it from the second peer so it's not double counted */
+    uid_from_hash (key, &second_pos);
+    hash_from_uid (random_ctx->first_uid, &first_hash);
+    GNUNET_assert (random_ctx->pg->total > second_pos);
+    GNUNET_assert (GNUNET_YES ==
+        GNUNET_CONTAINER_multihashmap_remove (random_ctx->
+            pg->peers
+            [second_pos].connect_peers,
+            &first_hash,
+            random_ctx->
+            first->daemon));
+
+    return GNUNET_YES;
+  }
 
 /**
  * Iterator for adding at least X peers to a peers connection set.
@@ -2697,38 +4185,50 @@ random_connect_iterator (void *cls,
  * @return GNUNET_YES to continue iteration
  */
 static int
-minimum_connect_iterator (void *cls,
-                  const GNUNET_HashCode * key,
-                  void *value)
-{
-  struct MinimumContext *min_ctx = cls;
-  uint32_t second_pos;
-  GNUNET_HashCode first_hash;
-  unsigned int i;
-
-  if (GNUNET_CONTAINER_multihashmap_size(min_ctx->first->connect_peers_working_set) < min_ctx->num_to_add)
+minimum_connect_iterator (void *cls, const GNUNET_HashCode * key, void *value)
   {
-    for (i = 0; i < min_ctx->num_to_add; i++)
-    {
-      if (min_ctx->pg_array[i] == min_ctx->current)
+    struct MinimumContext *min_ctx = cls;
+    uint32_t second_pos;
+    GNUNET_HashCode first_hash;
+    unsigned int i;
+
+    if (GNUNET_CONTAINER_multihashmap_size
+        (min_ctx->first->connect_peers_working_set) < min_ctx->num_to_add)
       {
-        GNUNET_assert(GNUNET_OK == GNUNET_CONTAINER_multihashmap_put(min_ctx->first->connect_peers_working_set, key, value, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY));
-        uid_from_hash(key, &second_pos);
-        hash_from_uid(min_ctx->first_uid, &first_hash);
-        GNUNET_assert(min_ctx->pg->total > second_pos);
-        GNUNET_assert(GNUNET_OK == GNUNET_CONTAINER_multihashmap_put(min_ctx->pg->peers[second_pos].connect_peers_working_set, &first_hash, min_ctx->first->daemon, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY));
-        /* Now we have added this particular connection, remove it from the second peer's map so it's not double counted */
-        GNUNET_assert(GNUNET_YES == GNUNET_CONTAINER_multihashmap_remove(min_ctx->pg->peers[second_pos].connect_peers, &first_hash, min_ctx->first->daemon));
+        for (i = 0; i < min_ctx->num_to_add; i++)
+          {
+            if (min_ctx->pg_array[i] == min_ctx->current)
+              {
+                GNUNET_assert (GNUNET_OK ==
+                    GNUNET_CONTAINER_multihashmap_put
+                    (min_ctx->first->connect_peers_working_set, key,
+                        value,
+                        GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY));
+                uid_from_hash (key, &second_pos);
+                hash_from_uid (min_ctx->first_uid, &first_hash);
+                GNUNET_assert (min_ctx->pg->total > second_pos);
+                GNUNET_assert (GNUNET_OK ==
+                    GNUNET_CONTAINER_multihashmap_put (min_ctx->
+                        pg->peers
+                        [second_pos].connect_peers_working_set,
+                        &first_hash,
+                        min_ctx->first->
+                        daemon,
+                        GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY));
+                /* Now we have added this particular connection, remove it from the second peer's map so it's not double counted */
+                GNUNET_assert (GNUNET_YES ==
+                    GNUNET_CONTAINER_multihashmap_remove
+                    (min_ctx->pg->peers[second_pos].connect_peers,
+                        &first_hash, min_ctx->first->daemon));
+              }
+          }
+        min_ctx->current++;
+        return GNUNET_YES;
       }
-    }
-    min_ctx->current++;
-    return GNUNET_YES;
-  }
-  else
+    else
     return GNUNET_NO; /* We can stop iterating, we have enough peers! */
 
-}
-
+  }
 
 /**
  * Iterator for adding peers to a connection set based on a depth first search.
@@ -2740,55 +4240,196 @@ minimum_connect_iterator (void *cls,
  * @return GNUNET_YES to continue iteration
  */
 static int
-dfs_connect_iterator (void *cls,
-                  const GNUNET_HashCode * key,
-                  void *value)
+dfs_connect_iterator (void *cls, const GNUNET_HashCode * key, void *value)
+  {
+    struct DFSContext *dfs_ctx = cls;
+    GNUNET_HashCode first_hash;
+
+    if (dfs_ctx->current == dfs_ctx->chosen)
+      {
+        GNUNET_assert (GNUNET_OK ==
+            GNUNET_CONTAINER_multihashmap_put (dfs_ctx->
+                first->connect_peers_working_set,
+                key, value,
+                GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY));
+        uid_from_hash (key, &dfs_ctx->second_uid);
+        hash_from_uid (dfs_ctx->first_uid, &first_hash);
+        GNUNET_assert (GNUNET_OK ==
+            GNUNET_CONTAINER_multihashmap_put (dfs_ctx->
+                pg->peers
+                [dfs_ctx->second_uid].connect_peers_working_set,
+                &first_hash,
+                dfs_ctx->
+                first->daemon,
+                GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY));
+        GNUNET_assert (GNUNET_YES ==
+            GNUNET_CONTAINER_multihashmap_remove (dfs_ctx->
+                pg->peers
+                [dfs_ctx->second_uid].connect_peers,
+                &first_hash,
+                dfs_ctx->
+                first->daemon));
+        /* Can't remove second from first yet because we are currently iterating, hence the return value in the DFSContext! */
+        return GNUNET_NO; /* We have found our peer, don't iterate more */
+      }
+
+    dfs_ctx->current++;
+    return GNUNET_YES;
+  }
+#endif
+
+/**
+ * From the set of connections possible, choose percentage percent of connections
+ * to actually connect.
+ *
+ * @param pg the peergroup we are dealing with
+ * @param percentage what percent of total connections to make
+ */
+void
+choose_random_connections(struct GNUNET_TESTING_PeerGroup *pg,
+                          double percentage)
+{
+  uint32_t pg_iter;
+#if OLD
+  struct PeerConnection *conn_iter;
+  double random_number;
+#else
+  struct RandomContext random_ctx;
+#endif
+
+  for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
+    {
+#if OLD
+      conn_iter = pg->peers[pg_iter].connect_peers_head;
+      while (conn_iter != NULL)
+        {
+          random_number
+              = ((double) GNUNET_CRYPTO_random_u64 (GNUNET_CRYPTO_QUALITY_WEAK,
+                                                    UINT64_MAX))
+                  / ((double) UINT64_MAX);
+          if (random_number < percentage)
+            {
+              add_connections (pg, pg_iter, conn_iter->index, WORKING_SET,
+                               GNUNET_YES);
+            }
+          conn_iter = conn_iter->next;
+        }
+#else
+      random_ctx.first_uid = pg_iter;
+      random_ctx.first = &pg->peers[pg_iter];
+      random_ctx.percentage = percentage;
+      random_ctx.pg = pg;
+      pg->peers[pg_iter].connect_peers_working_set 
+       = GNUNET_CONTAINER_multihashmap_create (pg->total);
+      GNUNET_CONTAINER_multihashmap_iterate (pg->peers[pg_iter].connect_peers,
+                                            &random_connect_iterator,
+                                            &random_ctx);
+      /* Now remove the old connections */
+      GNUNET_CONTAINER_multihashmap_destroy (pg->
+                                            peers[pg_iter].connect_peers);
+      /* And replace with the random set */
+      pg->peers[pg_iter].connect_peers 
+       = pg->peers[pg_iter].connect_peers_working_set;
+#endif
+    }
+
+  for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
+    {
+      conn_iter = pg->peers[pg_iter].connect_peers_head;
+      while (pg->peers[pg_iter].connect_peers_head != NULL)
+        remove_connections (pg, pg_iter,
+                            pg->peers[pg_iter].connect_peers_head->index,
+                            CONNECT, GNUNET_YES);
+
+      pg->peers[pg_iter].connect_peers_head
+          = pg->peers[pg_iter].connect_peers_working_set_head;
+      pg->peers[pg_iter].connect_peers_tail
+          = pg->peers[pg_iter].connect_peers_working_set_tail;
+      pg->peers[pg_iter].connect_peers_working_set_head = NULL;
+      pg->peers[pg_iter].connect_peers_working_set_tail = NULL;
+    }
+}
+
+/**
+ * Count the number of connections in a linked list of connections.
+ *
+ * @param conn_list the connection list to get the count of
+ *
+ * @return the number of elements in the list
+ */
+static unsigned int
+count_connections(struct PeerConnection *conn_list)
+{
+  struct PeerConnection *iter;
+  unsigned int count;
+  count = 0;
+  iter = conn_list;
+  while (iter != NULL)
+    {
+      iter = iter->next;
+      count++;
+    }
+  return count;
+}
+
+static unsigned int
+count_workingset_connections(struct GNUNET_TESTING_PeerGroup *pg)
 {
-  struct DFSContext *dfs_ctx = cls;
-  GNUNET_HashCode first_hash;
+  unsigned int count;
+  unsigned int pg_iter;
+#if OLD
+  struct PeerConnection *conn_iter;
+#endif
+  count = 0;
 
-  if (dfs_ctx->current == dfs_ctx->chosen)
+  for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
     {
-      GNUNET_assert(GNUNET_OK == GNUNET_CONTAINER_multihashmap_put(dfs_ctx->first->connect_peers_working_set, key, value, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY));
-      uid_from_hash(key, &dfs_ctx->second_uid);
-      hash_from_uid(dfs_ctx->first_uid, &first_hash);
-      GNUNET_assert(GNUNET_OK == GNUNET_CONTAINER_multihashmap_put(dfs_ctx->pg->peers[dfs_ctx->second_uid].connect_peers_working_set, &first_hash, dfs_ctx->first->daemon, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY));
-      GNUNET_assert(GNUNET_YES == GNUNET_CONTAINER_multihashmap_remove(dfs_ctx->pg->peers[dfs_ctx->second_uid].connect_peers, &first_hash, dfs_ctx->first->daemon));
-      /* Can't remove second from first yet because we are currently iterating, hence the return value in the DFSContext! */
-      return GNUNET_NO; /* We have found our peer, don't iterate more */
+#if OLD
+      conn_iter = pg->peers[pg_iter].connect_peers_working_set_head;
+      while (conn_iter != NULL)
+        {
+          count++;
+          conn_iter = conn_iter->next;
+        }
+#else
+      count +=
+      GNUNET_CONTAINER_multihashmap_size (pg->
+          peers
+          [pg_iter].connect_peers_working_set);
+#endif
     }
 
-  dfs_ctx->current++;
-  return GNUNET_YES;
+  return count;
 }
 
-
-/**
- * From the set of connections possible, choose percentage percent of connections
- * to actually connect.
- *
- * @param pg the peergroup we are dealing with
- * @param percentage what percent of total connections to make
- */
-void
-choose_random_connections(struct GNUNET_TESTING_PeerGroup *pg, double percentage)
+static unsigned int
+count_allowed_connections(struct GNUNET_TESTING_PeerGroup *pg)
 {
-  struct RandomContext random_ctx;
-  uint32_t pg_iter;
+  unsigned int count;
+  unsigned int pg_iter;
+#if OLD
+  struct PeerConnection *conn_iter;
+#endif
 
+  count = 0;
   for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
     {
-      random_ctx.first_uid = pg_iter;
-      random_ctx.first = &pg->peers[pg_iter];
-      random_ctx.percentage = percentage;
-      random_ctx.pg = pg;
-      pg->peers[pg_iter].connect_peers_working_set = GNUNET_CONTAINER_multihashmap_create(pg->total);
-      GNUNET_CONTAINER_multihashmap_iterate(pg->peers[pg_iter].connect_peers, &random_connect_iterator, &random_ctx);
-      /* Now remove the old connections */
-      GNUNET_CONTAINER_multihashmap_destroy(pg->peers[pg_iter].connect_peers);
-      /* And replace with the random set */
-      pg->peers[pg_iter].connect_peers = pg->peers[pg_iter].connect_peers_working_set;
+#if OLD
+      conn_iter = pg->peers[pg_iter].allowed_peers_head;
+      while (conn_iter != NULL)
+        {
+          count++;
+          conn_iter = conn_iter->next;
+        }
+#else
+      count +=
+      GNUNET_CONTAINER_multihashmap_size (pg->
+          peers
+          [pg_iter].allowed_peers);
+#endif
     }
+
+  return count;
 }
 
 /**
@@ -2801,70 +4442,203 @@ choose_random_connections(struct GNUNET_TESTING_PeerGroup *pg, double percentage
 static void
 choose_minimum(struct GNUNET_TESTING_PeerGroup *pg, unsigned int num)
 {
+#if !OLD
   struct MinimumContext minimum_ctx;
+#else
+  struct PeerConnection *conn_iter;
+  unsigned int temp_list_size;
+  unsigned int i;
+  unsigned int count;
+  uint32_t random; /* Random list entry to connect peer to */
+#endif
   uint32_t pg_iter;
 
+#if OLD
+  for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
+    {
+      temp_list_size
+          = count_connections (pg->peers[pg_iter].connect_peers_head);
+      if (temp_list_size == 0)
+        {
+          GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
+                      "Peer %d has 0 connections!?!?\n", pg_iter);
+          break;
+        }
+      for (i = 0; i < num; i++)
+        {
+          random = GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK,
+                                             temp_list_size);
+          conn_iter = pg->peers[pg_iter].connect_peers_head;
+          for (count = 0; count < random; count++)
+            conn_iter = conn_iter->next;
+          /* We now have a random connection, connect it! */
+          GNUNET_assert(conn_iter != NULL);
+          add_connections (pg, pg_iter, conn_iter->index, WORKING_SET,
+                           GNUNET_YES);
+        }
+    }
+#else
   for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
-   {
-     pg->peers[pg_iter].connect_peers_working_set = GNUNET_CONTAINER_multihashmap_create(num);
-   }
+    {
+      pg->peers[pg_iter].connect_peers_working_set =
+      GNUNET_CONTAINER_multihashmap_create (num);
+    }
 
   for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
     {
       minimum_ctx.first_uid = pg_iter;
-      minimum_ctx.pg_array = GNUNET_CRYPTO_random_permute(GNUNET_CRYPTO_QUALITY_WEAK, 
-                                                         GNUNET_CONTAINER_multihashmap_size(pg->peers[pg_iter].connect_peers));
+      minimum_ctx.pg_array =
+      GNUNET_CRYPTO_random_permute (GNUNET_CRYPTO_QUALITY_WEAK,
+          GNUNET_CONTAINER_multihashmap_size
+          (pg->peers[pg_iter].connect_peers));
       minimum_ctx.first = &pg->peers[pg_iter];
       minimum_ctx.pg = pg;
       minimum_ctx.num_to_add = num;
       minimum_ctx.current = 0;
-      GNUNET_CONTAINER_multihashmap_iterate(pg->peers[pg_iter].connect_peers,
-                                           &minimum_connect_iterator, 
-                                           &minimum_ctx);
+      GNUNET_CONTAINER_multihashmap_iterate (pg->peers[pg_iter].connect_peers,
+          &minimum_connect_iterator,
+          &minimum_ctx);
     }
 
   for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
     {
       /* Remove the "old" connections */
-      GNUNET_CONTAINER_multihashmap_destroy(pg->peers[pg_iter].connect_peers);
+      GNUNET_CONTAINER_multihashmap_destroy (pg->
+          peers[pg_iter].connect_peers);
       /* And replace with the working set */
-      pg->peers[pg_iter].connect_peers = pg->peers[pg_iter].connect_peers_working_set;
+      pg->peers[pg_iter].connect_peers =
+      pg->peers[pg_iter].connect_peers_working_set;
     }
-
-}
-
-
-static unsigned int
-count_workingset_connections(struct GNUNET_TESTING_PeerGroup *pg)
-{
-  unsigned int count;
-  unsigned int pg_iter;
-
-  count = 0;
-
+#endif
   for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
     {
-      count += GNUNET_CONTAINER_multihashmap_size(pg->peers[pg_iter].connect_peers_working_set);
-    }
+      while (pg->peers[pg_iter].connect_peers_head != NULL)
+        {
+          conn_iter = pg->peers[pg_iter].connect_peers_head;
+          GNUNET_CONTAINER_DLL_remove(pg->peers[pg_iter].connect_peers_head,
+              pg->peers[pg_iter].connect_peers_tail,
+              conn_iter);
+          GNUNET_free(conn_iter);
+          /*remove_connections(pg, pg_iter, pg->peers[pg_iter].connect_peers_head->index, CONNECT, GNUNET_YES);*/
+        }
 
-  return count;
+      pg->peers[pg_iter].connect_peers_head
+          = pg->peers[pg_iter].connect_peers_working_set_head;
+      pg->peers[pg_iter].connect_peers_tail
+          = pg->peers[pg_iter].connect_peers_working_set_tail;
+      pg->peers[pg_iter].connect_peers_working_set_head = NULL;
+      pg->peers[pg_iter].connect_peers_working_set_tail = NULL;
+    }
 }
 
+#if !OLD
+struct FindClosestContext
+  {
+    /**
+     * The currently known closest peer.
+     */
+    struct GNUNET_TESTING_Daemon *closest;
+
+    /**
+     * The info for the peer we are adding connections for.
+     */
+    struct PeerData *curr_peer;
+
+    /**
+     * The distance (bits) between the current
+     * peer and the currently known closest.
+     */
+    unsigned int closest_dist;
+
+    /**
+     * The offset of the closest known peer in
+     * the peer group.
+     */
+    unsigned int closest_num;
+  };
 
-static unsigned int count_allowed_connections(struct GNUNET_TESTING_PeerGroup *pg)
-{
-  unsigned int count;
-  unsigned int pg_iter;
+/**
+ * Iterator over hash map entries of the allowed
+ * peer connections.  Find the closest, not already
+ * connected peer and return it.
+ *
+ * @param cls closure (struct FindClosestContext)
+ * @param key current key code (hash of offset in pg)
+ * @param value value in the hash map - a GNUNET_TESTING_Daemon
+ * @return GNUNET_YES if we should continue to
+ *         iterate,
+ *         GNUNET_NO if not.
+ */
+static int
+find_closest_peers (void *cls, const GNUNET_HashCode * key, void *value)
+  {
+    struct FindClosestContext *closest_ctx = cls;
+    struct GNUNET_TESTING_Daemon *daemon = value;
+
+    if (((closest_ctx->closest == NULL) ||
+            (GNUNET_CRYPTO_hash_matching_bits
+                (&daemon->id.hashPubKey,
+                    &closest_ctx->curr_peer->daemon->id.hashPubKey) >
+                closest_ctx->closest_dist))
+        && (GNUNET_YES !=
+            GNUNET_CONTAINER_multihashmap_contains (closest_ctx->
+                curr_peer->connect_peers,
+                key)))
+      {
+        closest_ctx->closest_dist =
+        GNUNET_CRYPTO_hash_matching_bits (&daemon->id.hashPubKey,
+            &closest_ctx->curr_peer->daemon->
+            id.hashPubKey);
+        closest_ctx->closest = daemon;
+        uid_from_hash (key, &closest_ctx->closest_num);
+      }
+    return GNUNET_YES;
+  }
 
-  count = 0;
+/**
+ * From the set of connections possible, choose at num connections per
+ * peer based on depth which are closest out of those allowed.  Guaranteed
+ * to add num peers to connect to, provided there are that many peers
+ * in the underlay topology to connect to.
+ *
+ * @param pg the peergroup we are dealing with
+ * @param num how many connections at least should each peer have (if possible)?
+ * @param proc processor to actually add the connections
+ * @param list the peer list to use
+ */
+void
+add_closest (struct GNUNET_TESTING_PeerGroup *pg, unsigned int num,
+    GNUNET_TESTING_ConnectionProcessor proc, enum PeerLists list)
+  {
+#if OLD
 
-  for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
-    {
-      count += GNUNET_CONTAINER_multihashmap_size(pg->peers[pg_iter].connect_peers);
-    }
+#else
+    struct FindClosestContext closest_ctx;
+#endif
+    uint32_t pg_iter;
+    uint32_t i;
 
-  return count;
-}
+    for (i = 0; i < num; i++) /* Each time find a closest peer (from those available) */
+      {
+        for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
+          {
+            closest_ctx.curr_peer = &pg->peers[pg_iter];
+            closest_ctx.closest = NULL;
+            closest_ctx.closest_dist = 0;
+            closest_ctx.closest_num = 0;
+            GNUNET_CONTAINER_multihashmap_iterate (pg->
+                peers[pg_iter].allowed_peers,
+                &find_closest_peers,
+                &closest_ctx);
+            if (closest_ctx.closest != NULL)
+              {
+                GNUNET_assert (closest_ctx.closest_num < pg->total);
+                proc (pg, pg_iter, closest_ctx.closest_num, list);
+              }
+          }
+      }
+  }
+#endif
 
 /**
  * From the set of connections possible, choose at least num connections per
@@ -2875,73 +4649,146 @@ static unsigned int count_allowed_connections(struct GNUNET_TESTING_PeerGroup *p
  * @param num how many connections at least should each peer have (if possible)?
  */
 void
-perform_dfs (struct GNUNET_TESTING_PeerGroup *pg, unsigned int num)
+perform_dfs(struct GNUNET_TESTING_PeerGroup *pg, unsigned int num)
 {
-  struct DFSContext dfs_ctx;
   uint32_t pg_iter;
   uint32_t dfs_count;
   uint32_t starting_peer;
   uint32_t least_connections;
+  uint32_t random_connection;
+#if OLD
+  unsigned int temp_count;
+  struct PeerConnection *peer_iter;
+#else
+  struct DFSContext dfs_ctx;
   GNUNET_HashCode second_hash;
+#endif
+
+#if OLD
+  starting_peer = 0;
+  dfs_count = 0;
+  while ((count_workingset_connections (pg) < num * pg->total)
+      && (count_allowed_connections (pg) > 0))
+    {
+      if (dfs_count % pg->total == 0) /* Restart the DFS at some weakly connected peer */
+        {
+          least_connections = -1; /* Set to very high number */
+          for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
+            {
+              temp_count
+                  = count_connections (
+                                       pg->peers[pg_iter].connect_peers_working_set_head);
+              if (temp_count < least_connections)
+                {
+                  starting_peer = pg_iter;
+                  least_connections = temp_count;
+                }
+            }
+        }
+
+      temp_count
+          = count_connections (pg->peers[starting_peer].connect_peers_head);
+      if (temp_count == 0)
+        continue; /* FIXME: infinite loop? */
+
+      random_connection = GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK,
+                                                    temp_count);
+      temp_count = 0;
+      peer_iter = pg->peers[starting_peer].connect_peers_head;
+      while (temp_count < random_connection)
+        {
+          peer_iter = peer_iter->next;
+          temp_count++;
+        }
+      GNUNET_assert(peer_iter != NULL);
+      add_connections (pg, starting_peer, peer_iter->index, WORKING_SET,
+                       GNUNET_NO);
+      remove_connections (pg, starting_peer, peer_iter->index, CONNECT,
+                          GNUNET_YES);
+      starting_peer = peer_iter->index;
+      dfs_count++;
+    }
 
+#else
   for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
     {
-      pg->peers[pg_iter].connect_peers_working_set = GNUNET_CONTAINER_multihashmap_create(num);
+      pg->peers[pg_iter].connect_peers_working_set =
+      GNUNET_CONTAINER_multihashmap_create (num);
     }
 
   starting_peer = 0;
   dfs_count = 0;
-  while ((count_workingset_connections(pg) < num * pg->total) && (count_allowed_connections(pg) > 0))
+  while ((count_workingset_connections (pg) < num * pg->total)
+      && (count_allowed_connections (pg) > 0))
     {
       if (dfs_count % pg->total == 0) /* Restart the DFS at some weakly connected peer */
         {
           least_connections = -1; /* Set to very high number */
           for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
             {
-              if (GNUNET_CONTAINER_multihashmap_size(pg->peers[pg_iter].connect_peers_working_set) < least_connections)
+              if (GNUNET_CONTAINER_multihashmap_size
+                  (pg->peers[pg_iter].connect_peers_working_set) <
+                  least_connections)
                 {
                   starting_peer = pg_iter;
-                  least_connections = GNUNET_CONTAINER_multihashmap_size(pg->peers[pg_iter].connect_peers_working_set);
+                  least_connections =
+                  GNUNET_CONTAINER_multihashmap_size (pg->
+                      peers
+                      [pg_iter].connect_peers_working_set);
                 }
             }
         }
 
-      if (GNUNET_CONTAINER_multihashmap_size(pg->peers[starting_peer].connect_peers) == 0)  /* Ensure there is at least one peer left to connect! */
+      if (GNUNET_CONTAINER_multihashmap_size (pg->peers[starting_peer].connect_peers) == 0) /* Ensure there is at least one peer left to connect! */
         {
           dfs_count = 0;
           continue;
         }
 
       /* Choose a random peer from the chosen peers set of connections to add */
-      dfs_ctx.chosen = GNUNET_CRYPTO_random_u32(GNUNET_CRYPTO_QUALITY_WEAK, GNUNET_CONTAINER_multihashmap_size(pg->peers[starting_peer].connect_peers));
+      dfs_ctx.chosen =
+      GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK,
+          GNUNET_CONTAINER_multihashmap_size
+          (pg->peers[starting_peer].connect_peers));
       dfs_ctx.first_uid = starting_peer;
       dfs_ctx.first = &pg->peers[starting_peer];
       dfs_ctx.pg = pg;
       dfs_ctx.current = 0;
 
-      GNUNET_CONTAINER_multihashmap_iterate(pg->peers[starting_peer].connect_peers, &dfs_connect_iterator, &dfs_ctx);
+      GNUNET_CONTAINER_multihashmap_iterate (pg->
+          peers
+          [starting_peer].connect_peers,
+          &dfs_connect_iterator, &dfs_ctx);
       /* Remove the second from the first, since we will be continuing the search and may encounter the first peer again! */
-      hash_from_uid(dfs_ctx.second_uid, &second_hash);
-      GNUNET_assert(GNUNET_YES == GNUNET_CONTAINER_multihashmap_remove(pg->peers[starting_peer].connect_peers, &second_hash, pg->peers[dfs_ctx.second_uid].daemon));
+      hash_from_uid (dfs_ctx.second_uid, &second_hash);
+      GNUNET_assert (GNUNET_YES ==
+          GNUNET_CONTAINER_multihashmap_remove (pg->peers
+              [starting_peer].connect_peers,
+              &second_hash,
+              pg->
+              peers
+              [dfs_ctx.second_uid].daemon));
       starting_peer = dfs_ctx.second_uid;
     }
 
   for (pg_iter = 0; pg_iter < pg->total; pg_iter++)
     {
       /* Remove the "old" connections */
-      GNUNET_CONTAINER_multihashmap_destroy(pg->peers[pg_iter].connect_peers);
+      GNUNET_CONTAINER_multihashmap_destroy (pg->
+          peers[pg_iter].connect_peers);
       /* And replace with the working set */
-      pg->peers[pg_iter].connect_peers = pg->peers[pg_iter].connect_peers_working_set;
+      pg->peers[pg_iter].connect_peers =
+      pg->peers[pg_iter].connect_peers_working_set;
     }
+#endif
 }
 
 /**
  * Internal callback for topology information for a particular peer.
  */
 static void
-internal_topology_callback(void *cls,
-                           const struct GNUNET_PeerIdentity *peer,
-                           struct GNUNET_TIME_Relative latency, uint32_t distance)
+internal_topology_callback(void *cls, const struct GNUNET_PeerIdentity *peer,
+                           const struct GNUNET_TRANSPORT_ATS_Information *atsi)
 {
   struct CoreContext *core_ctx = cls;
   struct TopologyIterateContext *iter_ctx = core_ctx->iter_context;
@@ -2951,22 +4798,21 @@ internal_topology_callback(void *cls,
       iter_ctx->completed++;
       iter_ctx->connected--;
       /* One core context allocated per iteration, must free! */
-      GNUNET_free(core_ctx);
+      GNUNET_free (core_ctx);
     }
   else
     {
-      iter_ctx->topology_cb(iter_ctx->cls, &core_ctx->daemon->id, peer, latency, distance, NULL);
+      iter_ctx->topology_cb (iter_ctx->cls, &core_ctx->daemon->id, peer, NULL);
     }
 
   if (iter_ctx->completed == iter_ctx->total)
     {
-      iter_ctx->topology_cb(iter_ctx->cls, NULL, NULL, GNUNET_TIME_relative_get_zero(), 0, NULL);
+      iter_ctx->topology_cb (iter_ctx->cls, NULL, NULL, NULL);
       /* Once all are done, free the iteration context */
-      GNUNET_free(iter_ctx);
+      GNUNET_free (iter_ctx);
     }
 }
 
-
 /**
  * Check running topology iteration tasks, if below max start a new one, otherwise
  * schedule for some time in the future.
@@ -2975,28 +4821,41 @@ static void
 schedule_get_topology(void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
 {
   struct CoreContext *core_context = cls;
-  struct TopologyIterateContext *topology_context = (struct TopologyIterateContext *)core_context->iter_context;
-  if (tc->reason == GNUNET_SCHEDULER_REASON_SHUTDOWN)
+  struct TopologyIterateContext *topology_context =
+      (struct TopologyIterateContext *) core_context->iter_context;
+  if ( (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN) != 0)
     return;
 
-  if (topology_context->connected > MAX_OUTSTANDING_CONNECTIONS)
+  if (topology_context->connected
+      > topology_context->pg->max_outstanding_connections)
     {
 #if VERBOSE_TESTING > 2
-          GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-                      _("Delaying connect, we have too many outstanding connections!\n"));
+      GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+          _
+          ("Delaying connect, we have too many outstanding connections!\n"));
 #endif
-      GNUNET_SCHEDULER_add_delayed(core_context->daemon->sched, GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MILLISECONDS, 100), &schedule_get_topology, core_context);
+      GNUNET_SCHEDULER_add_delayed (
+                                    GNUNET_TIME_relative_multiply (
+                                                                   GNUNET_TIME_UNIT_MILLISECONDS,
+                                                                   100),
+                                    &schedule_get_topology, core_context);
     }
   else
     {
 #if VERBOSE_TESTING > 2
-          GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-                      _("Creating connection, outstanding_connections is %d\n"), outstanding_connects);
+      GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+          _("Creating connection, outstanding_connections is %d\n"),
+          outstanding_connects);
 #endif
       topology_context->connected++;
-      if (GNUNET_OK != GNUNET_CORE_iterate_peers (core_context->daemon->sched, core_context->daemon->cfg, &internal_topology_callback, core_context))
-        internal_topology_callback(core_context, NULL, GNUNET_TIME_relative_get_zero(), 0);
 
+      if (GNUNET_OK != GNUNET_CORE_iterate_peers (core_context->daemon->cfg,
+                                                  &internal_topology_callback,
+                                                  core_context))
+        {
+          GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Topology iteration failed.\n");
+          internal_topology_callback (core_context, NULL, NULL);
+        }
     }
 }
 
@@ -3005,7 +4864,8 @@ schedule_get_topology(void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
  * all connections that each currently has.
  */
 void
-GNUNET_TESTING_get_topology (struct GNUNET_TESTING_PeerGroup *pg, GNUNET_TESTING_NotifyTopology cb, void *cls)
+GNUNET_TESTING_get_topology(struct GNUNET_TESTING_PeerGroup *pg,
+                            GNUNET_TESTING_NotifyTopology cb, void *cls)
 {
   struct TopologyIterateContext *topology_context;
   struct CoreContext *core_ctx;
@@ -3013,24 +4873,31 @@ GNUNET_TESTING_get_topology (struct GNUNET_TESTING_PeerGroup *pg, GNUNET_TESTING
   unsigned int total_count;
 
   /* Allocate a single topology iteration context */
-  topology_context = GNUNET_malloc(sizeof(struct TopologyIterateContext));
+  topology_context = GNUNET_malloc (sizeof (struct TopologyIterateContext));
   topology_context->topology_cb = cb;
   topology_context->cls = cls;
+  topology_context->pg = pg;
   total_count = 0;
   for (i = 0; i < pg->total; i++)
     {
       if (pg->peers[i].daemon->running == GNUNET_YES)
         {
           /* Allocate one core context per core we need to connect to */
-          core_ctx = GNUNET_malloc(sizeof(struct CoreContext));
+          core_ctx = GNUNET_malloc (sizeof (struct CoreContext));
           core_ctx->daemon = pg->peers[i].daemon;
           /* Set back pointer to topology iteration context */
           core_ctx->iter_context = topology_context;
-          GNUNET_SCHEDULER_add_now(pg->sched, &schedule_get_topology, core_ctx);
+          GNUNET_SCHEDULER_add_now (&schedule_get_topology, core_ctx);
           total_count++;
         }
     }
-  topology_context->total = total_count;
+  if (total_count == 0)
+    {
+      cb (cls, NULL, NULL, "Cannot iterate over topology, no running peers!");
+      GNUNET_free (topology_context);
+    }
+  else
+    topology_context->total = total_count;
   return;
 }
 
@@ -3047,16 +4914,16 @@ GNUNET_TESTING_get_topology (struct GNUNET_TESTING_PeerGroup *pg, GNUNET_TESTING
  * @param is_persistent GNUNET_YES if the value is persistent, GNUNET_NO if not
  * @return GNUNET_OK to continue, GNUNET_SYSERR to abort iteration
  */
-static int internal_stats_callback (void *cls,
-                                    const char *subsystem,
-                                    const char *name,
-                                    uint64_t value,
-                                    int is_persistent)
+static int
+internal_stats_callback(void *cls, const char *subsystem, const char *name,
+                        uint64_t value, int is_persistent)
 {
   struct StatsCoreContext *core_context = cls;
-  struct StatsIterateContext *stats_context = (struct StatsIterateContext *)core_context->iter_context;
+  struct StatsIterateContext *stats_context =
+      (struct StatsIterateContext *) core_context->iter_context;
 
-  return stats_context->proc(stats_context->cls, &core_context->daemon->id, subsystem, name, value, is_persistent);
+  return stats_context->proc (stats_context->cls, &core_context->daemon->id,
+                              subsystem, name, value, is_persistent);
 }
 
 /**
@@ -3066,24 +4933,26 @@ static int internal_stats_callback (void *cls,
  * @param success whether or not the statistics iterations
  *        was canceled or not (we don't care)
  */
-static void internal_stats_cont (void *cls, int success)
+static void
+internal_stats_cont(void *cls, int success)
 {
   struct StatsCoreContext *core_context = cls;
-  struct StatsIterateContext *stats_context = (struct StatsIterateContext *)core_context->iter_context;
+  struct StatsIterateContext *stats_context =
+      (struct StatsIterateContext *) core_context->iter_context;
 
   stats_context->connected--;
   stats_context->completed++;
 
   if (stats_context->completed == stats_context->total)
     {
-      stats_context->cont(stats_context->cls, GNUNET_YES);
-      GNUNET_free(stats_context);
+      stats_context->cont (stats_context->cls, GNUNET_YES);
+      GNUNET_free (stats_context);
     }
 
   if (core_context->stats_handle != NULL)
-    GNUNET_STATISTICS_destroy(core_context->stats_handle, GNUNET_NO);
+    GNUNET_STATISTICS_destroy (core_context->stats_handle, GNUNET_NO);
 
-  GNUNET_free(core_context);
+  GNUNET_free (core_context);
 }
 
 /**
@@ -3091,82 +4960,214 @@ static void internal_stats_cont (void *cls, int success)
  * schedule for some time in the future.
  */
 static void
-schedule_get_statistics(void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
+schedule_get_statistics(void *cls,
+                        const struct GNUNET_SCHEDULER_TaskContext *tc)
 {
   struct StatsCoreContext *core_context = cls;
-  struct StatsIterateContext *stats_context = (struct StatsIterateContext *)core_context->iter_context;
+  struct StatsIterateContext *stats_context =
+      (struct StatsIterateContext *) core_context->iter_context;
 
-  if (tc->reason == GNUNET_SCHEDULER_REASON_SHUTDOWN)
+  if ( (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN) != 0)
     return;
 
-  if (stats_context->connected > MAX_OUTSTANDING_CONNECTIONS)
+  if (stats_context->connected > stats_context->pg->max_outstanding_connections)
     {
 #if VERBOSE_TESTING > 2
-          GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-                      _("Delaying connect, we have too many outstanding connections!\n"));
+      GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+          _
+          ("Delaying connect, we have too many outstanding connections!\n"));
 #endif
-      GNUNET_SCHEDULER_add_delayed(core_context->daemon->sched, GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MILLISECONDS, 100), &schedule_get_statistics, core_context);
+      GNUNET_SCHEDULER_add_delayed (
+                                    GNUNET_TIME_relative_multiply (
+                                                                   GNUNET_TIME_UNIT_MILLISECONDS,
+                                                                   100),
+                                    &schedule_get_statistics, core_context);
     }
   else
     {
 #if VERBOSE_TESTING > 2
-          GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-                      _("Creating connection, outstanding_connections is %d\n"), outstanding_connects);
+      GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+          _("Creating connection, outstanding_connections is %d\n"),
+          outstanding_connects);
 #endif
 
       stats_context->connected++;
-      core_context->stats_handle = GNUNET_STATISTICS_create(core_context->daemon->sched, "testing", core_context->daemon->cfg);
+      core_context->stats_handle
+          = GNUNET_STATISTICS_create ("testing", core_context->daemon->cfg);
       if (core_context->stats_handle == NULL)
         {
           internal_stats_cont (core_context, GNUNET_NO);
           return;
         }
 
-      core_context->stats_get_handle = GNUNET_STATISTICS_get(core_context->stats_handle, NULL, NULL, GNUNET_TIME_relative_get_forever(), &internal_stats_cont, &internal_stats_callback, core_context);
+      core_context->stats_get_handle
+          = GNUNET_STATISTICS_get (core_context->stats_handle, NULL, NULL,
+                                   GNUNET_TIME_relative_get_forever (),
+                                   &internal_stats_cont,
+                                   &internal_stats_callback, core_context);
       if (core_context->stats_get_handle == NULL)
         internal_stats_cont (core_context, GNUNET_NO);
 
     }
 }
 
+struct DuplicateStats
+{
+  /**
+   * Next item in the list
+   */
+  struct DuplicateStats *next;
+
+  /**
+   * Nasty string, concatenation of relevant information.
+   */
+  char *unique_string;
+};
+
+/**
+ * Check whether the combination of port/host/unix domain socket
+ * already exists in the list of peers being checked for statistics.
+ *
+ * @param pg the peergroup in question
+ * @param specific_peer the peer we're concerned with
+ * @param stats_list the list to return to the caller
+ *
+ * @return GNUNET_YES if the statistics instance has been seen already,
+ *         GNUNET_NO if not (and we may have added it to the list)
+ */
+static int
+stats_check_existing(struct GNUNET_TESTING_PeerGroup *pg,
+                     struct PeerData *specific_peer,
+                     struct DuplicateStats **stats_list)
+{
+  struct DuplicateStats *pos;
+  char *unix_domain_socket;
+  unsigned long long port;
+  char *to_match;
+  if (GNUNET_YES
+      != GNUNET_CONFIGURATION_get_value_yesno (pg->cfg, "testing",
+                                               "single_statistics_per_host"))
+    return GNUNET_NO; /* Each peer has its own statistics instance, do nothing! */
+
+  pos = *stats_list;
+  if (GNUNET_OK != GNUNET_CONFIGURATION_get_value_string (specific_peer->cfg,
+                                                          "statistics",
+                                                          "unixpath",
+                                                          &unix_domain_socket))
+    return GNUNET_NO;
+
+  if (GNUNET_OK != GNUNET_CONFIGURATION_get_value_number (specific_peer->cfg,
+                                                          "statistics", "port",
+                                                          &port))
+    {
+      GNUNET_free(unix_domain_socket);
+      return GNUNET_NO;
+    }
+
+  if (specific_peer->daemon->hostname != NULL)
+    GNUNET_asprintf (&to_match, "%s%s%llu", specific_peer->daemon->hostname,
+                     unix_domain_socket, port);
+  else
+    GNUNET_asprintf (&to_match, "%s%llu", unix_domain_socket, port);
+
+  while (pos != NULL)
+    {
+      if (0 == strcmp (to_match, pos->unique_string))
+        {
+          GNUNET_free (unix_domain_socket);
+          GNUNET_free (to_match);
+          return GNUNET_YES;
+        }
+      pos = pos->next;
+    }
+  pos = GNUNET_malloc (sizeof (struct DuplicateStats));
+  pos->unique_string = to_match;
+  pos->next = *stats_list;
+  *stats_list = pos;
+  GNUNET_free (unix_domain_socket);
+  return GNUNET_NO;
+}
 
 /**
  * Iterate over all (running) peers in the peer group, retrieve
  * all statistics from each.
  */
 void
-GNUNET_TESTING_get_statistics (struct GNUNET_TESTING_PeerGroup *pg,
-                               GNUNET_STATISTICS_Callback cont,
-                               GNUNET_TESTING_STATISTICS_Iterator proc, void *cls)
+GNUNET_TESTING_get_statistics(struct GNUNET_TESTING_PeerGroup *pg,
+                              GNUNET_STATISTICS_Callback cont,
+                              GNUNET_TESTING_STATISTICS_Iterator proc,
+                              void *cls)
 {
   struct StatsIterateContext *stats_context;
   struct StatsCoreContext *core_ctx;
   unsigned int i;
   unsigned int total_count;
+  struct DuplicateStats *stats_list;
+  struct DuplicateStats *pos;
+  stats_list = NULL;
 
   /* Allocate a single stats iteration context */
-  stats_context = GNUNET_malloc(sizeof(struct StatsIterateContext));
+  stats_context = GNUNET_malloc (sizeof (struct StatsIterateContext));
   stats_context->cont = cont;
   stats_context->proc = proc;
   stats_context->cls = cls;
+  stats_context->pg = pg;
   total_count = 0;
+
   for (i = 0; i < pg->total; i++)
     {
-      if (pg->peers[i].daemon->running == GNUNET_YES)
+      if ((pg->peers[i].daemon->running == GNUNET_YES) && (GNUNET_NO
+          == stats_check_existing (pg, &pg->peers[i], &stats_list)))
         {
           /* Allocate one core context per core we need to connect to */
-          core_ctx = GNUNET_malloc(sizeof(struct StatsCoreContext));
+          core_ctx = GNUNET_malloc (sizeof (struct StatsCoreContext));
           core_ctx->daemon = pg->peers[i].daemon;
           /* Set back pointer to topology iteration context */
           core_ctx->iter_context = stats_context;
-          GNUNET_SCHEDULER_add_now(pg->sched, &schedule_get_statistics, core_ctx);
+          GNUNET_SCHEDULER_add_now (&schedule_get_statistics, core_ctx);
           total_count++;
         }
     }
+
+  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+              "Retrieving stats from %u total instances.\n", total_count);
   stats_context->total = total_count;
+  if (stats_list != NULL)
+    {
+      pos = stats_list;
+      while (pos != NULL)
+        {
+          GNUNET_free (pos->unique_string);
+          stats_list = pos->next;
+          GNUNET_free (pos);
+          pos = stats_list->next;
+        }
+    }
   return;
 }
 
+/**
+ * Stop the connection process temporarily.
+ *
+ * @param pg the peer group to stop connecting
+ */
+void
+GNUNET_TESTING_stop_connections(struct GNUNET_TESTING_PeerGroup *pg)
+{
+  pg->stop_connects = GNUNET_YES;
+}
+
+/**
+ * Resume the connection process temporarily.
+ *
+ * @param pg the peer group to resume connecting
+ */
+void
+GNUNET_TESTING_resume_connections(struct GNUNET_TESTING_PeerGroup *pg)
+{
+  pg->stop_connects = GNUNET_NO;
+}
+
 /**
  * There are many ways to connect peers that are supported by this function.
  * To connect peers in the same topology that was created via the
@@ -3180,124 +5181,209 @@ GNUNET_TESTING_get_statistics (struct GNUNET_TESTING_PeerGroup *pg,
  * @param topology which topology to connect the peers in
  * @param options options for connecting the topology
  * @param option_modifier modifier for options that take a parameter
+ * @param connect_timeout how long to wait before giving up on connecting
+ *                        two peers
+ * @param connect_attempts how many times to attempt to connect two peers
+ *                         over the connect_timeout duration
+ * @param notify_callback notification to be called once all connections completed
+ * @param notify_cls closure for notification callback
+ *
  * @return the number of connections that will be attempted, GNUNET_SYSERR on error
  */
 int
-GNUNET_TESTING_connect_topology (struct GNUNET_TESTING_PeerGroup *pg,
-                                 enum GNUNET_TESTING_Topology topology,
-                                 enum GNUNET_TESTING_TopologyOption options,
-                                 double option_modifier)
+GNUNET_TESTING_connect_topology(
+                                struct GNUNET_TESTING_PeerGroup *pg,
+                                enum GNUNET_TESTING_Topology topology,
+                                enum GNUNET_TESTING_TopologyOption options,
+                                double option_modifier,
+                                struct GNUNET_TIME_Relative connect_timeout,
+                                unsigned int connect_attempts,
+                                GNUNET_TESTING_NotifyCompletion notify_callback,
+                                void *notify_cls)
 {
   switch (topology)
-      {
-      case GNUNET_TESTING_TOPOLOGY_CLIQUE:
+    {
+  case GNUNET_TESTING_TOPOLOGY_CLIQUE:
 #if VERBOSE_TOPOLOGY
-      GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-                  _("Creating clique CONNECT topology\n"));
+    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+                _("Creating clique CONNECT topology\n"));
 #endif
-        create_clique (pg, &add_actual_connections);
-        break;
-      case GNUNET_TESTING_TOPOLOGY_SMALL_WORLD_RING:
+    create_clique (pg, &add_connections, CONNECT, GNUNET_NO);
+    break;
+  case GNUNET_TESTING_TOPOLOGY_SMALL_WORLD_RING:
 #if VERBOSE_TOPOLOGY
-      GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-                  _("Creating small world (ring) CONNECT topology\n"));
+    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+                _("Creating small world (ring) CONNECT topology\n"));
 #endif
-        create_small_world_ring (pg, &add_actual_connections);
-        break;
-      case GNUNET_TESTING_TOPOLOGY_SMALL_WORLD:
+    create_small_world_ring (pg, &add_connections, CONNECT);
+    break;
+  case GNUNET_TESTING_TOPOLOGY_SMALL_WORLD:
 #if VERBOSE_TOPOLOGY
-      GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-                  _("Creating small world (2d-torus) CONNECT topology\n"));
+    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+                _("Creating small world (2d-torus) CONNECT topology\n"));
 #endif
-        create_small_world (pg, &add_actual_connections);
-        break;
-      case GNUNET_TESTING_TOPOLOGY_RING:
+    create_small_world (pg, &add_connections, CONNECT);
+    break;
+  case GNUNET_TESTING_TOPOLOGY_RING:
 #if VERBOSE_TOPOLOGY
-      GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-                  _("Creating ring CONNECT topology\n"));
+    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, _("Creating ring CONNECT topology\n"));
 #endif
-        create_ring (pg, &add_actual_connections);
-        break;
-      case GNUNET_TESTING_TOPOLOGY_2D_TORUS:
+    create_ring (pg, &add_connections, CONNECT);
+    break;
+  case GNUNET_TESTING_TOPOLOGY_2D_TORUS:
 #if VERBOSE_TOPOLOGY
-      GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-                  _("Creating 2d torus CONNECT topology\n"));
+    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+                _("Creating 2d torus CONNECT topology\n"));
 #endif
-        create_2d_torus (pg, &add_actual_connections);
-        break;
-      case GNUNET_TESTING_TOPOLOGY_ERDOS_RENYI:
+    create_2d_torus (pg, &add_connections, CONNECT);
+    break;
+  case GNUNET_TESTING_TOPOLOGY_ERDOS_RENYI:
 #if VERBOSE_TOPOLOGY
-      GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-                  _("Creating Erdos-Renyi CONNECT topology\n"));
+    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+                _("Creating Erdos-Renyi CONNECT topology\n"));
 #endif
-        create_erdos_renyi (pg, &add_actual_connections);
-        break;
-      case GNUNET_TESTING_TOPOLOGY_INTERNAT:
+    create_erdos_renyi (pg, &add_connections, CONNECT);
+    break;
+  case GNUNET_TESTING_TOPOLOGY_INTERNAT:
 #if VERBOSE_TOPOLOGY
-      GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-                  _("Creating InterNAT CONNECT topology\n"));
+    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+                _("Creating InterNAT CONNECT topology\n"));
 #endif
-        create_nated_internet (pg, &add_actual_connections);
-        break;
-      case GNUNET_TESTING_TOPOLOGY_SCALE_FREE:
+    create_nated_internet (pg, &add_connections, CONNECT);
+    break;
+  case GNUNET_TESTING_TOPOLOGY_SCALE_FREE:
 #if VERBOSE_TOPOLOGY
-      GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-                  _("Creating Scale Free CONNECT topology\n"));
+    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+                _("Creating Scale Free CONNECT topology\n"));
 #endif
-        create_scale_free (pg, &add_actual_connections);
-        break;
-      case GNUNET_TESTING_TOPOLOGY_LINE:
+    create_scale_free (pg, &add_connections, CONNECT);
+    break;
+  case GNUNET_TESTING_TOPOLOGY_LINE:
 #if VERBOSE_TOPOLOGY
-      GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-                  _("Creating straight line CONNECT topology\n"));
+    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+                _("Creating straight line CONNECT topology\n"));
 #endif
-        create_line (pg, &add_actual_connections);
-        break;
-      case GNUNET_TESTING_TOPOLOGY_NONE:
+    create_line (pg, &add_connections, CONNECT);
+    break;
+  case GNUNET_TESTING_TOPOLOGY_NONE:
 #if VERBOSE_TOPOLOGY
-        GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-                  _("Creating no CONNECT topology\n"));
+    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, _("Creating no CONNECT topology\n"));
 #endif
-        copy_allowed_topology(pg);
-        break;
-      default:
-        GNUNET_log(GNUNET_ERROR_TYPE_WARNING, 
-                  _("Unknown topology specification, can't connect peers!\n"));
-        return GNUNET_SYSERR;
-      }
+    copy_allowed_topology (pg);
+    break;
+  default:
+    GNUNET_log (GNUNET_ERROR_TYPE_WARNING, _
+    ("Unknown topology specification, can't connect peers!\n"));
+    return GNUNET_SYSERR;
+    }
 
   switch (options)
     {
-    case GNUNET_TESTING_TOPOLOGY_OPTION_RANDOM:
+  case GNUNET_TESTING_TOPOLOGY_OPTION_RANDOM:
 #if VERBOSE_TOPOLOGY
-      GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-                  _("Connecting random subset (%'.2f percent) of possible peers\n"), 100 * option_modifier);
+    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, _
+    ("Connecting random subset (%'.2f percent) of possible peers\n"), 100
+        * option_modifier);
 #endif
-      choose_random_connections(pg, option_modifier);
-      break;
-    case GNUNET_TESTING_TOPOLOGY_OPTION_MINIMUM:
+    choose_random_connections (pg, option_modifier);
+    break;
+  case GNUNET_TESTING_TOPOLOGY_OPTION_MINIMUM:
 #if VERBOSE_TOPOLOGY
-      GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-                  _("Connecting a minimum of %u peers each (if possible)\n"), (unsigned int)option_modifier);
+    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+                _("Connecting a minimum of %u peers each (if possible)\n"),
+                (unsigned int) option_modifier);
 #endif
-      choose_minimum(pg, (unsigned int)option_modifier);
-      break;
-    case GNUNET_TESTING_TOPOLOGY_OPTION_DFS:
+    choose_minimum (pg, (unsigned int) option_modifier);
+    break;
+  case GNUNET_TESTING_TOPOLOGY_OPTION_DFS:
 #if VERBOSE_TOPOLOGY
-      GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-                  _("Using DFS to connect a minimum of %u peers each (if possible)\n"), (unsigned int)option_modifier);
+    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, _
+    ("Using DFS to connect a minimum of %u peers each (if possible)\n"),
+                (unsigned int) option_modifier);
 #endif
-      perform_dfs(pg, (int)option_modifier);
-      break;
-    case GNUNET_TESTING_TOPOLOGY_OPTION_NONE:
-      break;
-    case GNUNET_TESTING_TOPOLOGY_OPTION_ALL:
-      break;
-    default:
-      break;
+#if FIXME
+    perform_dfs (pg, (int) option_modifier);
+#endif
+    break;
+  case GNUNET_TESTING_TOPOLOGY_OPTION_ADD_CLOSEST:
+#if VERBOSE_TOPOLOGY
+    GNUNET_log (GNUNET_ERROR_TYPE_WARNING, _
+    ("Finding additional %u closest peers each (if possible)\n"),
+                (unsigned int) option_modifier);
+#endif
+#if FIXME
+    add_closest (pg, (unsigned int) option_modifier,
+        &add_connections, CONNECT);
+#endif
+    break;
+  case GNUNET_TESTING_TOPOLOGY_OPTION_NONE:
+    break;
+  case GNUNET_TESTING_TOPOLOGY_OPTION_ALL:
+    break;
+  default:
+    break;
     }
 
-  return connect_topology(pg);
+  return connect_topology (pg, connect_timeout, connect_attempts,
+                           notify_callback, notify_cls);
+}
+
+/**
+ * Lookup and return the number of SSH connections to a host.
+ *
+ * @param hostname the hostname to lookup in the list
+ * @param pg the peergroup that the host belongs to
+ *
+ * @return the number of current ssh connections to the host
+ */
+static unsigned int
+count_outstanding_at_host(const char *hostname,
+                          struct GNUNET_TESTING_PeerGroup *pg)
+{
+  struct OutstandingSSH *pos;
+  pos = pg->ssh_head;
+  while ((pos != NULL) && (strcmp (pos->hostname, hostname) != 0))
+    pos = pos->next;
+  GNUNET_assert(pos != NULL);
+  return pos->outstanding;
+}
+
+/**
+ * Increment the number of SSH connections to a host by one.
+ *
+ * @param hostname the hostname to lookup in the list
+ * @param pg the peergroup that the host belongs to
+ *
+ */
+static void
+increment_outstanding_at_host(const char *hostname,
+                              struct GNUNET_TESTING_PeerGroup *pg)
+{
+  struct OutstandingSSH *pos;
+  pos = pg->ssh_head;
+  while ((pos != NULL) && (strcmp (pos->hostname, hostname) != 0))
+    pos = pos->next;
+  GNUNET_assert(pos != NULL);
+  pos->outstanding++;
+}
+
+/**
+ * Decrement the number of SSH connections to a host by one.
+ *
+ * @param hostname the hostname to lookup in the list
+ * @param pg the peergroup that the host belongs to
+ *
+ */
+static void
+decrement_outstanding_at_host(const char *hostname,
+                              struct GNUNET_TESTING_PeerGroup *pg)
+{
+  struct OutstandingSSH *pos;
+  pos = pg->ssh_head;
+  while ((pos != NULL) && (strcmp (pos->hostname, hostname) != 0))
+    pos = pos->next;
+  GNUNET_assert(pos != NULL);
+  pos->outstanding--;
 }
 
 /**
@@ -3310,20 +5396,24 @@ GNUNET_TESTING_connect_topology (struct GNUNET_TESTING_PeerGroup *pg,
  * @param d handle for the daemon
  * @param emsg error message (NULL on success)
  */
-static void internal_hostkey_callback (void *cls,
-                                       const struct GNUNET_PeerIdentity *id,
-                                       struct GNUNET_TESTING_Daemon *d,
-                                       const char *emsg)
+static void
+internal_hostkey_callback(void *cls, const struct GNUNET_PeerIdentity *id,
+                          struct GNUNET_TESTING_Daemon *d, const char *emsg)
 {
   struct InternalStartContext *internal_context = cls;
   internal_context->peer->pg->starting--;
   internal_context->peer->pg->started++;
+  if (internal_context->hostname != NULL)
+    decrement_outstanding_at_host (internal_context->hostname,
+                                   internal_context->peer->pg);
   if (internal_context->hostkey_callback != NULL)
-    internal_context->hostkey_callback(internal_context->hostkey_cls, id, d, emsg);
-  else if (internal_context->peer->pg->started == internal_context->peer->pg->total)
+    internal_context->hostkey_callback (internal_context->hostkey_cls, id, d,
+                                        emsg);
+  else if (internal_context->peer->pg->started
+      == internal_context->peer->pg->total)
     {
       internal_context->peer->pg->started = 0; /* Internal startup may use this counter! */
-      GNUNET_TESTING_daemons_continue_startup(internal_context->peer->pg);
+      GNUNET_TESTING_daemons_continue_startup (internal_context->peer->pg);
     }
 }
 
@@ -3334,43 +5424,60 @@ static void internal_hostkey_callback (void *cls,
  *
  * @param cls closure
  * @param id identifier for the daemon, NULL on error
+ * @param cfg config
  * @param d handle for the daemon
  * @param emsg error message (NULL on success)
  */
-static void internal_startup_callback (void *cls,
-                                       const struct GNUNET_PeerIdentity *id,
-                                       const struct GNUNET_CONFIGURATION_Handle *cfg,
-                                       struct GNUNET_TESTING_Daemon *d,
-                                       const char *emsg)
+static void
+internal_startup_callback(void *cls, const struct GNUNET_PeerIdentity *id,
+                          const struct GNUNET_CONFIGURATION_Handle *cfg,
+                          struct GNUNET_TESTING_Daemon *d, const char *emsg)
 {
   struct InternalStartContext *internal_context = cls;
   internal_context->peer->pg->starting--;
+  if (internal_context->hostname != NULL)
+    decrement_outstanding_at_host (internal_context->hostname,
+                                   internal_context->peer->pg);
   if (internal_context->start_cb != NULL)
-    internal_context->start_cb(internal_context->start_cb_cls, id, cfg, d, emsg);
+    internal_context->start_cb (internal_context->start_cb_cls, id, cfg, d,
+                                emsg);
 }
 
 static void
-internal_continue_startup (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
+internal_continue_startup(void *cls,
+                          const struct GNUNET_SCHEDULER_TaskContext *tc)
 {
   struct InternalStartContext *internal_context = cls;
 
-  if (tc->reason == GNUNET_SCHEDULER_REASON_SHUTDOWN)
+  if ( (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN) != 0)
     {
       return;
     }
 
-  if (internal_context->peer->pg->starting < MAX_CONCURRENT_STARTING)
+  if ((internal_context->peer->pg->starting
+      < internal_context->peer->pg->max_concurrent_ssh)
+      || ((internal_context->hostname != NULL)
+          && (count_outstanding_at_host (internal_context->hostname,
+                                         internal_context->peer->pg)
+              < internal_context->peer->pg->max_concurrent_ssh)))
     {
+      if (internal_context->hostname != NULL)
+        increment_outstanding_at_host (internal_context->hostname,
+                                       internal_context->peer->pg);
       internal_context->peer->pg->starting++;
       GNUNET_TESTING_daemon_continue_startup (internal_context->peer->daemon);
     }
   else
     {
-      GNUNET_SCHEDULER_add_delayed(internal_context->peer->pg->sched, GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MILLISECONDS, 100), &internal_continue_startup, internal_context);
+      GNUNET_SCHEDULER_add_delayed (
+                                    GNUNET_TIME_relative_multiply (
+                                                                   GNUNET_TIME_UNIT_MILLISECONDS,
+                                                                   100),
+                                    &internal_continue_startup,
+                                    internal_context);
     }
 }
 
-
 /**
  * Callback for informing us about a successful
  * or unsuccessful churn start call.
@@ -3383,11 +5490,9 @@ internal_continue_startup (void *cls, const struct GNUNET_SCHEDULER_TaskContext
  *
  */
 void
-churn_start_callback (void *cls,
-                      const struct GNUNET_PeerIdentity *id,
-                      const struct GNUNET_CONFIGURATION_Handle *cfg,
-                      struct GNUNET_TESTING_Daemon *d,
-                      const char *emsg)
+churn_start_callback(void *cls, const struct GNUNET_PeerIdentity *id,
+                     const struct GNUNET_CONFIGURATION_Handle *cfg,
+                     struct GNUNET_TESTING_Daemon *d, const char *emsg)
 {
   struct ChurnRestartContext *startup_ctx = cls;
   struct ChurnContext *churn_ctx = startup_ctx->churn_ctx;
@@ -3399,8 +5504,7 @@ churn_start_callback (void *cls,
   if (emsg != NULL)
     {
       GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
-                  "Churn stop callback failed with error `%s'\n",
-                  emsg);
+                  "Churn stop callback failed with error `%s'\n", emsg);
       churn_ctx->num_failed_start++;
     }
   else
@@ -3409,74 +5513,176 @@ churn_start_callback (void *cls,
     }
 
 #if DEBUG_CHURN
-  GNUNET_log(GNUNET_ERROR_TYPE_WARNING,
-             "Started peer, %d left.\n",
-             churn_ctx->num_to_start);
+  GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
+      "Started peer, %d left.\n", churn_ctx->num_to_start);
 #endif
 
-  total_left = (churn_ctx->num_to_stop - churn_ctx->num_failed_stop) + (churn_ctx->num_to_start - churn_ctx->num_failed_start);
+  total_left = (churn_ctx->num_to_stop - churn_ctx->num_failed_stop)
+      + (churn_ctx->num_to_start - churn_ctx->num_failed_start);
 
   if (total_left == 0)
-  {
-    if ((churn_ctx->num_failed_stop > 0) || (churn_ctx->num_failed_start > 0))
-      GNUNET_asprintf(&error_message,
-                      "Churn didn't complete successfully, %u peers failed to start %u peers failed to be stopped!",
-                      churn_ctx->num_failed_start,
-                      churn_ctx->num_failed_stop);
-    churn_ctx->cb(churn_ctx->cb_cls, error_message);
-    GNUNET_free_non_null(error_message);
-    GNUNET_free(churn_ctx);
-    GNUNET_free(startup_ctx);
-  }
+    {
+      if ((churn_ctx->num_failed_stop > 0) || (churn_ctx->num_failed_start > 0))
+        GNUNET_asprintf (
+                         &error_message,
+                         "Churn didn't complete successfully, %u peers failed to start %u peers failed to be stopped!",
+                         churn_ctx->num_failed_start,
+                         churn_ctx->num_failed_stop);
+      churn_ctx->cb (churn_ctx->cb_cls, error_message);
+      GNUNET_free_non_null (error_message);
+      GNUNET_free (churn_ctx);
+      GNUNET_free (startup_ctx);
+    }
 }
 
-
-static void schedule_churn_restart(void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
+static void
+schedule_churn_restart(void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
 {
   struct PeerRestartContext *peer_restart_ctx = cls;
   struct ChurnRestartContext *startup_ctx = peer_restart_ctx->churn_restart_ctx;
 
-  if (startup_ctx->outstanding > MAX_CONCURRENT_STARTING)
-    GNUNET_SCHEDULER_add_delayed(peer_restart_ctx->daemon->sched, GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MILLISECONDS, 100), &schedule_churn_restart, peer_restart_ctx);
+  if (startup_ctx->outstanding > startup_ctx->pg->max_concurrent_ssh)
+    GNUNET_SCHEDULER_add_delayed (
+                                  GNUNET_TIME_relative_multiply (
+                                                                 GNUNET_TIME_UNIT_MILLISECONDS,
+                                                                 100),
+                                  &schedule_churn_restart, peer_restart_ctx);
   else
     {
-      GNUNET_TESTING_daemon_start_stopped(peer_restart_ctx->daemon,
-                                          startup_ctx->timeout,
-                                          &churn_start_callback,
-                                          startup_ctx);
-      GNUNET_free(peer_restart_ctx);
+      GNUNET_TESTING_daemon_start_stopped (peer_restart_ctx->daemon,
+                                           startup_ctx->timeout,
+                                           &churn_start_callback, startup_ctx);
+      GNUNET_free (peer_restart_ctx);
     }
 }
 
+
 static void
-internal_start (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
+internal_start(void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
 {
   struct InternalStartContext *internal_context = cls;
 
-  if (tc->reason == GNUNET_SCHEDULER_REASON_SHUTDOWN)
+  if ( (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN) != 0)
     {
       return;
     }
 
-  if (internal_context->peer->pg->starting < MAX_CONCURRENT_HOSTKEYS)
+  if ((internal_context->peer->pg->starting
+      < internal_context->peer->pg->max_concurrent_ssh)
+      || ((internal_context->hostname != NULL)
+          && (count_outstanding_at_host (internal_context->hostname,
+                                         internal_context->peer->pg)
+              < internal_context->peer->pg->max_concurrent_ssh)))
     {
+      if (internal_context->hostname != NULL)
+        increment_outstanding_at_host (internal_context->hostname,
+                                       internal_context->peer->pg);
       internal_context->peer->pg->starting++;
-      internal_context->peer->daemon = GNUNET_TESTING_daemon_start (internal_context->peer->pg->sched,
-                                                                    internal_context->peer->cfg,
-                                                                    internal_context->timeout,
-                                                                    internal_context->hostname,
-                                                                    internal_context->username,
-                                                                    internal_context->sshport,
-                                                                    &internal_hostkey_callback,
-                                                                    internal_context,
-                                                                    &internal_startup_callback,
-                                                                    internal_context);
+      internal_context->peer->daemon
+          = GNUNET_TESTING_daemon_start (internal_context->peer->cfg,
+                                         internal_context->timeout,
+                                         GNUNET_NO,
+                                         internal_context->hostname,
+                                         internal_context->username,
+                                         internal_context->sshport,
+                                         internal_context->hostkey,
+                                         &internal_hostkey_callback,
+                                         internal_context,
+                                         &internal_startup_callback,
+                                         internal_context);
     }
   else
     {
-      GNUNET_SCHEDULER_add_delayed(internal_context->peer->pg->sched, GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MILLISECONDS, 100), &internal_start, internal_context);
+      GNUNET_SCHEDULER_add_delayed (
+                                    GNUNET_TIME_relative_multiply (
+                                                                   GNUNET_TIME_UNIT_MILLISECONDS,
+                                                                   100),
+                                    &internal_start, internal_context);
+    }
+}
+#if USE_START_HELPER
+
+struct PeerStartHelperContext
+{
+  struct GNUNET_TESTING_PeerGroup *pg;
+
+  struct HostData *host;
+
+  struct GNUNET_OS_Process *proc;
+};
+
+static void
+check_peers_started (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
+{
+  struct PeerStartHelperContext *helper = cls;
+  enum GNUNET_OS_ProcessStatusType type;
+  unsigned long code;
+  unsigned int i;
+  GNUNET_TESTING_NotifyDaemonRunning cb;
+
+  if (GNUNET_NO == GNUNET_OS_process_status (helper->proc, &type, &code)) /* Still running, wait some more! */
+  {
+    GNUNET_SCHEDULER_add_delayed(GNUNET_CONSTANTS_EXEC_WAIT, &check_peers_started, helper);
+    return;
+  }
+
+  helper->pg->starting--;
+  if (helper->pg->starting == 0) /* All peers have finished starting! */
+    {
+      /* Call the peer started callback for each peer, set proper FSM state (?) */
+      for (i = 0; i < helper->pg->total; i++)
+        {
+          cb = helper->pg->peers[i].daemon->cb;
+          helper->pg->peers[i].daemon->cb = NULL;
+          helper->pg->peers[i].daemon->running = GNUNET_YES;
+          helper->pg->peers[i].daemon->phase = SP_START_DONE;
+          if (NULL != cb)
+          {
+            if ((type != GNUNET_OS_PROCESS_EXITED) || (code != 0))
+              cb (helper->pg->peers[i].daemon->cb_cls,
+                  &helper->pg->peers[i].daemon->id,
+                  helper->pg->peers[i].daemon->cfg, helper->pg->peers[i].daemon,
+                  "Failed to execute peerStartHelper.pl, or return code bad!");
+            else
+              cb (helper->pg->peers[i].daemon->cb_cls,
+                  &helper->pg->peers[i].daemon->id,
+                  helper->pg->peers[i].daemon->cfg, helper->pg->peers[i].daemon,
+                  NULL);
+
+          }
+
+        }
     }
+  GNUNET_OS_process_close(helper->proc);
+}
+
+static void
+start_peer_helper (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
+{
+  struct PeerStartHelperContext *helper = cls;
+  char *baseservicehome;
+  char *tempdir;
+  char *arg;
+  /* ssh user@host peerStartHelper /path/to/basedirectory */
+  GNUNET_assert(GNUNET_OK == GNUNET_CONFIGURATION_get_value_string (helper->pg->cfg, "PATHS", "SERVICEHOME",
+                                                                    &baseservicehome));
+  GNUNET_asprintf(&tempdir, "%s/%s/", baseservicehome, helper->host->hostname);
+  if (NULL != helper->host->username)
+    GNUNET_asprintf (&arg, "%s@%s", helper->host->username, helper->host->hostname);
+  else
+    GNUNET_asprintf (&arg, "%s", helper->host->hostname);
+
+  /* FIXME: Doesn't support ssh_port option! */
+  helper->proc = GNUNET_OS_start_process (NULL, NULL, "ssh", "ssh", arg,
+                                  "peerStartHelper.pl", tempdir,  NULL);
+  GNUNET_assert(helper->proc != NULL);
+  GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "starting peers with cmd ssh %s %s %s\n", arg, "peerStartHelper.pl", tempdir);
+  GNUNET_SCHEDULER_add_now (&check_peers_started, helper);
+  GNUNET_free (tempdir);
+  GNUNET_free (baseservicehome);
+  GNUNET_free (arg);
 }
+#endif
 
 /**
  * Function which continues a peer group starting up
@@ -3490,13 +5696,57 @@ GNUNET_TESTING_daemons_continue_startup(struct GNUNET_TESTING_PeerGroup *pg)
 {
   unsigned int i;
 
+#if USE_START_HELPER
+  if ((pg->num_hosts > 0) && (pg->hostkey_data != NULL))
+    {
+      struct PeerStartHelperContext *helper;
+      pg->starting = pg->num_hosts;
+      for (i = 0; i < pg->num_hosts; i++)
+        {
+          helper = GNUNET_malloc(sizeof(struct PeerStartHelperContext));
+          helper->pg = pg;
+          helper->host = &pg->hosts[i];
+          GNUNET_SCHEDULER_add_now(&start_peer_helper, helper);
+        }
+    }
+  else
+    {
+      pg->starting = 0;
+      for (i = 0; i < pg->total; i++)
+        {
+          GNUNET_SCHEDULER_add_now (&internal_continue_startup,
+                                    &pg->peers[i].internal_context);
+        }
+    }
+#else
   pg->starting = 0;
   for (i = 0; i < pg->total; i++)
     {
-      GNUNET_SCHEDULER_add_now (pg->sched, &internal_continue_startup, &pg->peers[i].internal_context);
-      //GNUNET_TESTING_daemon_continue_startup(pg->peers[i].daemon);
+      GNUNET_SCHEDULER_add_now (&internal_continue_startup,
+                                &pg->peers[i].internal_context);
+    }
+#endif
+}
+
+#if USE_START_HELPER
+static void
+call_hostkey_callbacks (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
+{
+  struct GNUNET_TESTING_PeerGroup *pg = cls;
+  unsigned int i;
+  for (i = 0; i < pg->total; i++)
+    {
+      if (pg->peers[i].internal_context.hostkey_callback != NULL)
+        pg->peers[i].internal_context.hostkey_callback (pg->peers[i].internal_context.hostkey_cls,
+                                                           &pg->peers[i].daemon->id,
+                                                           pg->peers[i].daemon,
+                                                           NULL);
     }
+
+  if (pg->peers[0].internal_context.hostkey_callback == NULL)
+    GNUNET_TESTING_daemons_continue_startup (pg);
 }
+#endif
 
 /**
  * Start count gnunet instances with the same set of transports and
@@ -3504,9 +5754,12 @@ GNUNET_TESTING_daemons_continue_startup(struct GNUNET_TESTING_PeerGroup *pg)
  * adjusted to ensure that no two peers running on the same system
  * have the same port(s) in their respective configurations.
  *
- * @param sched scheduler to use
  * @param cfg configuration template to use
  * @param total number of daemons to start
+ * @param max_concurrent_connections for testing, how many peers can
+ *                                   we connect to simultaneously
+ * @param max_concurrent_ssh when starting with ssh, how many ssh
+ *        connections will we allow at once (based on remote hosts allowed!)
  * @param timeout total time allowed for peers to start
  * @param hostkey_callback function to call on each peers hostkey generation
  *        if NULL, peers will be started by this call, if non-null,
@@ -3517,61 +5770,70 @@ GNUNET_TESTING_daemons_continue_startup(struct GNUNET_TESTING_PeerGroup *pg)
  * @param cb_cls closure for cb
  * @param connect_callback function to call each time two hosts are connected
  * @param connect_callback_cls closure for connect_callback
- * @param hostnames linked list of hosts to use to start peers on (NULL to run on localhost only)
+ * @param hostnames linked list of host structs to use to start peers on
+ *                  (NULL to run on localhost only)
  *
  * @return NULL on error, otherwise handle to control peer group
  */
 struct GNUNET_TESTING_PeerGroup *
-GNUNET_TESTING_daemons_start (struct GNUNET_SCHEDULER_Handle *sched,
-                              const struct GNUNET_CONFIGURATION_Handle *cfg,
-                              unsigned int total,
-                              struct GNUNET_TIME_Relative timeout,
-                              GNUNET_TESTING_NotifyHostkeyCreated hostkey_callback,
-                              void *hostkey_cls,
-                              GNUNET_TESTING_NotifyDaemonRunning cb,
-                              void *cb_cls,
-                              GNUNET_TESTING_NotifyConnection
-                              connect_callback, void *connect_callback_cls,
-                              const struct GNUNET_TESTING_Host *hostnames)
+GNUNET_TESTING_daemons_start(const struct GNUNET_CONFIGURATION_Handle *cfg,
+                             unsigned int total,
+                             unsigned int max_concurrent_connections,
+                             unsigned int max_concurrent_ssh,
+                             struct GNUNET_TIME_Relative timeout,
+                             GNUNET_TESTING_NotifyHostkeyCreated hostkey_callback,
+                             void *hostkey_cls,
+                             GNUNET_TESTING_NotifyDaemonRunning cb,
+                             void *cb_cls,
+                             GNUNET_TESTING_NotifyConnection connect_callback,
+                             void *connect_callback_cls,
+                             const struct GNUNET_TESTING_Host *hostnames)
 {
   struct GNUNET_TESTING_PeerGroup *pg;
   const struct GNUNET_TESTING_Host *hostpos;
-#if 0
-  char *pos;
-  const char *rpos;
-  char *start;
-#endif
   const char *hostname;
   const char *username;
   char *baseservicehome;
   char *newservicehome;
   char *tmpdir;
+  char *hostkeys_file;
+  char *arg;
+  char *ssh_port_str;
+  struct GNUNET_DISK_FileHandle *fd;
   struct GNUNET_CONFIGURATION_Handle *pcfg;
   unsigned int off;
+  struct OutstandingSSH *ssh_entry;
   unsigned int hostcnt;
+  unsigned int i;
   uint16_t minport;
   uint16_t sshport;
   uint32_t upnum;
   uint32_t fdnum;
+  uint64_t fs;
+  uint64_t total_hostkeys;
+  struct GNUNET_OS_Process *proc;
 
+  username = NULL;
   if (0 == total)
     {
       GNUNET_break (0);
       return NULL;
     }
+
   upnum = 0;
   fdnum = 0;
   pg = GNUNET_malloc (sizeof (struct GNUNET_TESTING_PeerGroup));
-  pg->sched = sched;
   pg->cfg = cfg;
   pg->notify_connection = connect_callback;
   pg->notify_connection_cls = connect_callback_cls;
   pg->total = total;
-  pg->max_timeout = GNUNET_TIME_relative_to_absolute(timeout);
+  pg->max_timeout = GNUNET_TIME_relative_to_absolute (timeout);
   pg->peers = GNUNET_malloc (total * sizeof (struct PeerData));
+  pg->max_outstanding_connections = max_concurrent_connections;
+  pg->max_concurrent_ssh = max_concurrent_ssh;
   if (NULL != hostnames)
     {
-      off = 2;
+      off = 0;
       hostpos = hostnames;
       while (hostpos != NULL)
         {
@@ -3585,72 +5847,125 @@ GNUNET_TESTING_daemons_start (struct GNUNET_SCHEDULER_Handle *sched,
       while (hostpos != NULL)
         {
           pg->hosts[off].minport = LOW_PORT;
-          off++;
-          pg->hosts[off].hostname = GNUNET_strdup(hostpos->hostname);
+          pg->hosts[off].hostname = GNUNET_strdup (hostpos->hostname);
           if (hostpos->username != NULL)
-            pg->hosts[off].username = GNUNET_strdup(hostpos->username);
+            pg->hosts[off].username = GNUNET_strdup (hostpos->username);
           pg->hosts[off].sshport = hostpos->port;
           hostpos = hostpos->next;
+          off++;
         }
 
       if (off == 0)
         {
-          GNUNET_free (pg->hosts);
           pg->hosts = NULL;
         }
       hostcnt = off;
       minport = 0;
+      pg->num_hosts = off;
+    }
+  else
+    {
+      hostcnt = 0;
+      minport = LOW_PORT;
+    }
 
-#if NO_LL
-      off = 2;
-      /* skip leading spaces */
-      while ((0 != *hostnames) && (isspace ( (unsigned char) *hostnames)))
-        hostnames++;
-      rpos = hostnames;
-      while ('\0' != *rpos)
+  /* Create the servicehome directory for each remote peer */
+  GNUNET_assert(GNUNET_OK == GNUNET_CONFIGURATION_get_value_string (cfg, "PATHS", "SERVICEHOME",
+                                                                    &baseservicehome));
+  for (i = 0; i < pg->num_hosts; i++)
+    {
+      ssh_entry = GNUNET_malloc(sizeof(struct OutstandingSSH));
+      ssh_entry->hostname = pg->hosts[i].hostname; /* Don't free! */
+      GNUNET_CONTAINER_DLL_insert(pg->ssh_head, pg->ssh_tail, ssh_entry);
+      GNUNET_asprintf(&tmpdir, "%s/%s", baseservicehome, pg->hosts[i].hostname);
+      if (NULL != pg->hosts[i].username)
+        GNUNET_asprintf (&arg, "%s@%s", pg->hosts[i].username,
+                         pg->hosts[i].hostname);
+      else
+        GNUNET_asprintf (&arg, "%s", pg->hosts[i].hostname);
+      if (pg->hosts[i].sshport != 0)
         {
-          if (isspace ( (unsigned char) *rpos))
-            off++;
-          rpos++;
+          GNUNET_asprintf (&ssh_port_str, "%d", pg->hosts[i].sshport);
+          proc = GNUNET_OS_start_process (NULL, NULL, "ssh", "ssh", "-P",
+                                          ssh_port_str,
+#if !DEBUG_TESTING
+                                          "-q",
+#endif
+                                          arg, "mkdir -p", tmpdir,
+                                          NULL);
         }
-      pg->hosts = GNUNET_malloc (off * sizeof (struct HostData));
-      off = 0;
-      start = GNUNET_strdup (hostnames);
-      pos = start;
-      while ('\0' != *pos)
+      else
+        proc = GNUNET_OS_start_process (NULL, NULL, "ssh", "ssh", arg,
+                                        "mkdir -p", tmpdir, NULL);
+      GNUNET_assert(proc != NULL);
+      GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+                  "Creating remote dir with command ssh %s %s %s\n", arg,
+                  " mkdir -p ", tmpdir);
+      GNUNET_free(tmpdir);
+      GNUNET_free(arg);
+      GNUNET_OS_process_wait (proc);
+      GNUNET_OS_process_close(proc);
+    }
+  GNUNET_free(baseservicehome);
+
+  if (GNUNET_YES == GNUNET_CONFIGURATION_get_value_string (cfg, "TESTING",
+                                                           "HOSTKEYSFILE",
+                                                           &hostkeys_file))
+    {
+      if (GNUNET_YES != GNUNET_DISK_file_test (hostkeys_file))
+        GNUNET_log (GNUNET_ERROR_TYPE_WARNING, 
+                   _("Could not read hostkeys file!\n"));
+      else
         {
-          if (isspace ( (unsigned char) *pos))
+          /* Check hostkey file size, read entire thing into memory */
+          fd = GNUNET_DISK_file_open (hostkeys_file,
+                                     GNUNET_DISK_OPEN_READ,
+                                      GNUNET_DISK_PERM_NONE);
+          if (NULL == fd)
             {
-              *pos = '\0';
-              if (strlen (start) > 0)
-                {
-                  pg->hosts[off].minport = LOW_PORT;
-                  pg->hosts[off++].hostname = start;
-                }
-              start = pos + 1;
+              GNUNET_log_strerror_file (GNUNET_ERROR_TYPE_ERROR, 
+                                       "open", 
+                                       hostkeys_file);
+             GNUNET_free (hostkeys_file);
+             for (i=0;i<pg->num_hosts;i++)
+               {
+                 GNUNET_free (pg->hosts[i].hostname);
+                 GNUNET_free_non_null (pg->hosts[i].username);
+               }
+             GNUNET_free (pg->peers);
+             GNUNET_free (pg->hosts);
+             GNUNET_free (pg);
+              return NULL;
             }
-          pos++;
-        }
-      if (strlen (start) > 0)
-        {
-          pg->hosts[off].minport = LOW_PORT;
-          pg->hosts[off++].hostname = start;
-        }
-      if (off == 0)
-        {
-          GNUNET_free (start);
-          GNUNET_free (pg->hosts);
-          pg->hosts = NULL;
+
+          if (GNUNET_YES != GNUNET_DISK_file_size (hostkeys_file, &fs,
+                                                   GNUNET_YES))
+            fs = 0;
+
+          GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+                      "Found file size %llu for hostkeys, expect hostkeys to be size %d\n",
+                      fs, HOSTKEYFILESIZE);
+
+          if (0 != (fs % HOSTKEYFILESIZE))
+            {
+              GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
+                          "File size %llu seems incorrect for hostkeys...\n",
+                          fs);
+            }
+          else
+            {
+              total_hostkeys = fs / HOSTKEYFILESIZE;
+              GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+                          "Will read %llu hostkeys from file\n",
+                         total_hostkeys);
+              pg->hostkey_data = GNUNET_malloc_large (fs);
+              GNUNET_assert (fs == GNUNET_DISK_file_read (fd, pg->hostkey_data, fs));
+            }
+         GNUNET_assert(GNUNET_OK == GNUNET_DISK_file_close(fd));
         }
-      hostcnt = off;
-      minport = 0;              /* make gcc happy */
-#endif
-    }
-  else
-    {
-      hostcnt = 0;
-      minport = LOW_PORT;
+      GNUNET_free(hostkeys_file);
     }
+
   for (off = 0; off < total; off++)
     {
       if (hostcnt > 0)
@@ -3658,71 +5973,137 @@ GNUNET_TESTING_daemons_start (struct GNUNET_SCHEDULER_Handle *sched,
           hostname = pg->hosts[off % hostcnt].hostname;
           username = pg->hosts[off % hostcnt].username;
           sshport = pg->hosts[off % hostcnt].sshport;
-          pcfg = make_config (cfg, 
-                             &pg->hosts[off % hostcnt].minport,
-                             &upnum,
-                             hostname, &fdnum);
+          pcfg = make_config (cfg, off, &pg->hosts[off % hostcnt].minport,
+                              &upnum, hostname, &fdnum);
         }
       else
         {
           hostname = NULL;
           username = NULL;
           sshport = 0;
-          pcfg = make_config (cfg,
-                             &minport,
-                             &upnum,
-                             hostname, &fdnum);
+          pcfg = make_config (cfg, off, &minport, &upnum, hostname, &fdnum);
         }
 
       if (NULL == pcfg)
         {
-          GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
-                      _
-                      ("Could not create configuration for peer number %u on `%s'!\n"),
+          GNUNET_log (GNUNET_ERROR_TYPE_WARNING, _
+          ("Could not create configuration for peer number %u on `%s'!\n"),
                       off, hostname == NULL ? "localhost" : hostname);
           continue;
         }
 
-      if (GNUNET_YES ==
-          GNUNET_CONFIGURATION_get_value_string (pcfg, "PATHS", "SERVICEHOME",
-                                                 &baseservicehome))
+      if (GNUNET_YES
+          == GNUNET_CONFIGURATION_get_value_string (pcfg, "PATHS",
+                                                    "SERVICEHOME",
+                                                    &baseservicehome))
         {
-         GNUNET_asprintf (&newservicehome,
-                          "%s/%d/", baseservicehome, off);
-         GNUNET_free (baseservicehome);
+          if (hostname != NULL)
+            GNUNET_asprintf (&newservicehome, "%s/%s/%d/", baseservicehome, hostname, off);
+          else
+            GNUNET_asprintf (&newservicehome, "%s/%d/", baseservicehome, off);
+#if !USE_START_HELPER
+          GNUNET_free (baseservicehome);
+#endif
         }
       else
         {
           tmpdir = getenv ("TMPDIR");
           tmpdir = tmpdir ? tmpdir : "/tmp";
-         GNUNET_asprintf (&newservicehome,
-                          "%s/%s/%d/",
-                          tmpdir,
-                          "gnunet-testing-test-test", off);
+          if (hostname != NULL)
+            GNUNET_asprintf (&newservicehome, "%s/%s/%s/%d/", tmpdir, hostname,
+                             "gnunet-testing-test-test", off);
+          else
+            GNUNET_asprintf (&newservicehome, "%s/%s/%d/", tmpdir,
+                             "gnunet-testing-test-test", off);
         }
-      GNUNET_CONFIGURATION_set_value_string (pcfg,
-                                             "PATHS",
-                                             "SERVICEHOME", newservicehome);
+      GNUNET_CONFIGURATION_set_value_string (pcfg, "PATHS", "SERVICEHOME",
+                                             newservicehome);
       GNUNET_free (newservicehome);
       pg->peers[off].cfg = pcfg;
-      pg->peers[off].allowed_peers = GNUNET_CONTAINER_multihashmap_create(total);
-      pg->peers[off].connect_peers = GNUNET_CONTAINER_multihashmap_create(total);
-      pg->peers[off].blacklisted_peers = GNUNET_CONTAINER_multihashmap_create(total);
       pg->peers[off].pg = pg;
-
       pg->peers[off].internal_context.peer = &pg->peers[off];
       pg->peers[off].internal_context.timeout = timeout;
       pg->peers[off].internal_context.hostname = hostname;
       pg->peers[off].internal_context.username = username;
       pg->peers[off].internal_context.sshport = sshport;
+      if (pg->hostkey_data != NULL)
+        pg->peers[off].internal_context.hostkey = &pg->hostkey_data[off
+            * HOSTKEYFILESIZE];
       pg->peers[off].internal_context.hostkey_callback = hostkey_callback;
       pg->peers[off].internal_context.hostkey_cls = hostkey_cls;
       pg->peers[off].internal_context.start_cb = cb;
       pg->peers[off].internal_context.start_cb_cls = cb_cls;
+#if !USE_START_HELPER
+      GNUNET_SCHEDULER_add_now (&internal_start,
+                                &pg->peers[off].internal_context);
+#else
+      if ((pg->hostkey_data != NULL) && (hostcnt > 0))
+        {
+          pg->peers[off].daemon = GNUNET_TESTING_daemon_start (pcfg,
+                                       timeout,
+                                       GNUNET_YES,
+                                       hostname,
+                                       username,
+                                       sshport,
+                                       pg->peers[off].internal_context.hostkey,
+                                       &internal_hostkey_callback,
+                                       &pg->peers[off].internal_context,
+                                       &internal_startup_callback,
+                                       &pg->peers[off].internal_context);
+          /**
+           * At this point, given that we had a hostkeyfile,
+           * we can call the hostkey callback!
+           * But first, we should copy (rsync) all of the configs
+           * and hostkeys to the remote peers.  Then let topology
+           * creation happen, then call the peer start helper processes,
+           * then set pg->whatever_phase for each peer and let them
+           * enter the fsm to get the HELLO's for peers and start connecting.
+           */
+        }
+      else
+        {
+          GNUNET_SCHEDULER_add_now (&internal_start,
+                                    &pg->peers[off].internal_context);
+        }
 
-      GNUNET_SCHEDULER_add_now (sched, &internal_start, &pg->peers[off].internal_context);
+#endif
+    }
+
+#if USE_START_HELPER /* Now the peergroup has been set up, hostkeys and configs written to files. */
+  if ((pg->hostkey_data != NULL) && (hostcnt > 0))
+    {
+      for (off = 0; off < hostcnt; off++)
+        {
+          GNUNET_asprintf(&newservicehome, "%s/%s/", baseservicehome, pg->hosts[off].hostname);
+
+          if (NULL != username)
+            GNUNET_asprintf (&arg, "%s@%s:%s/%s", username, pg->hosts[off].hostname, baseservicehome, pg->hosts[off].hostname);
+          else
+            GNUNET_asprintf (&arg, "%s:%s/%s", pg->hosts[off].hostname, baseservicehome, pg->hosts[off].hostname);
+
+          /* FIXME: Doesn't support ssh_port option! */
+          proc = GNUNET_OS_start_process (NULL, NULL, "rsync", "rsync", "-r", newservicehome, arg, NULL);
 
+          GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "copying directory with command rsync -r %s %s\n", newservicehome, arg);
+
+          GNUNET_free (arg);
+          if (NULL == proc)
+            {
+              GNUNET_log (
+                          GNUNET_ERROR_TYPE_ERROR,
+                          _
+                          ("Could not start `%s' process to copy configuration directory.\n"),
+                          "scp");
+              GNUNET_assert(0);
+            }
+          GNUNET_OS_process_wait (proc);
+          GNUNET_OS_process_close (proc);
+        }
+      /* Now all the configuration files and hostkeys are copied to the remote host.  Call the hostkey callback for each peer! */
+      GNUNET_SCHEDULER_add_now(&call_hostkey_callbacks, pg);
     }
+  GNUNET_free (baseservicehome);
+#endif
   return pg;
 }
 
@@ -3731,12 +6112,12 @@ GNUNET_TESTING_daemons_start (struct GNUNET_SCHEDULER_Handle *sched,
  * offsetting operation.
  */
 struct GNUNET_TESTING_Daemon *
-GNUNET_TESTING_daemon_get (struct GNUNET_TESTING_PeerGroup *pg, unsigned int position)
+GNUNET_TESTING_daemon_get(struct GNUNET_TESTING_PeerGroup *pg,
+                          unsigned int position)
 {
   if (position < pg->total)
     return pg->peers[position].daemon;
-  else
-    return NULL;
+  return NULL;
 }
 
 /*
@@ -3749,16 +6130,17 @@ GNUNET_TESTING_daemon_get (struct GNUNET_TESTING_PeerGroup *pg, unsigned int pos
  * @return the daemon on success, or NULL if no such peer identity is found
  */
 struct GNUNET_TESTING_Daemon *
-GNUNET_TESTING_daemon_get_by_id (struct GNUNET_TESTING_PeerGroup *pg, struct GNUNET_PeerIdentity *peer_id)
+GNUNET_TESTING_daemon_get_by_id(struct GNUNET_TESTING_PeerGroup *pg,
+                                struct GNUNET_PeerIdentity *peer_id)
 {
   unsigned int i;
 
-  for (i = 0; i < pg->total; i ++)
+  for (i = 0; i < pg->total; i++)
     {
-      if (0 == memcmp(&pg->peers[i].daemon->id, peer_id, sizeof(struct GNUNET_PeerIdentity)))
+      if (0 == memcmp (&pg->peers[i].daemon->id, peer_id,
+                       sizeof(struct GNUNET_PeerIdentity)))
         return pg->peers[i].daemon;
     }
-
   return NULL;
 }
 
@@ -3772,11 +6154,10 @@ GNUNET_TESTING_daemon_get_by_id (struct GNUNET_TESTING_PeerGroup *pg, struct GNU
  * @param d handle to the daemon that was restarted
  * @param emsg NULL on success
  */
-void restart_callback (void *cls,
-                       const struct GNUNET_PeerIdentity *id,
-                       const struct GNUNET_CONFIGURATION_Handle *cfg,
-                       struct GNUNET_TESTING_Daemon *d,
-                       const char *emsg)
+static void
+restart_callback(void *cls, const struct GNUNET_PeerIdentity *id,
+                 const struct GNUNET_CONFIGURATION_Handle *cfg,
+                 struct GNUNET_TESTING_Daemon *d, const char *emsg)
 {
   struct RestartContext *restart_context = cls;
 
@@ -3791,13 +6172,15 @@ void restart_callback (void *cls,
 
   if (restart_context->peers_restarted == restart_context->peer_group->total)
     {
-      restart_context->callback(restart_context->callback_cls, NULL);
-      GNUNET_free(restart_context);
+      restart_context->callback (restart_context->callback_cls, NULL);
+      GNUNET_free (restart_context);
     }
-  else if (restart_context->peers_restart_failed + restart_context->peers_restarted == restart_context->peer_group->total)
+  else if (restart_context->peers_restart_failed
+      + restart_context->peers_restarted == restart_context->peer_group->total)
     {
-      restart_context->callback(restart_context->callback_cls, "Failed to restart peers!");
-      GNUNET_free(restart_context);
+      restart_context->callback (restart_context->callback_cls,
+                                 "Failed to restart peers!");
+      GNUNET_free (restart_context);
     }
 
 }
@@ -3810,8 +6193,8 @@ void restart_callback (void *cls,
  * @param emsg NULL on success, non-NULL on failure
  *
  */
-void
-churn_stop_callback (void *cls, const char *emsg)
+static void
+churn_stop_callback(void *cls, const char *emsg)
 {
   struct ShutdownContext *shutdown_ctx = cls;
   struct ChurnContext *churn_ctx = shutdown_ctx->cb_cls;
@@ -3823,8 +6206,8 @@ churn_stop_callback (void *cls, const char *emsg)
 
   if (emsg != NULL)
     {
-      GNUNET_log(GNUNET_ERROR_TYPE_WARNING, 
-                "Churn stop callback failed with error `%s'\n", emsg);
+      GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
+                  "Churn stop callback failed with error `%s'\n", emsg);
       churn_ctx->num_failed_stop++;
     }
   else
@@ -3833,26 +6216,27 @@ churn_stop_callback (void *cls, const char *emsg)
     }
 
 #if DEBUG_CHURN
-  GNUNET_log(GNUNET_ERROR_TYPE_WARNING, 
-            "Stopped peer, %d left.\n", 
-            churn_ctx->num_to_stop);
+  GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
+      "Stopped peer, %d left.\n", churn_ctx->num_to_stop);
 #endif
-  total_left = (churn_ctx->num_to_stop - churn_ctx->num_failed_stop) + (churn_ctx->num_to_start - churn_ctx->num_failed_start);
+  total_left = (churn_ctx->num_to_stop - churn_ctx->num_failed_stop)
+      + (churn_ctx->num_to_start - churn_ctx->num_failed_start);
 
   if (total_left == 0)
-  {
-    if ((churn_ctx->num_failed_stop > 0) || (churn_ctx->num_failed_start > 0))
-      {
-        GNUNET_asprintf(&error_message, 
-                       "Churn didn't complete successfully, %u peers failed to start %u peers failed to be stopped!", 
-                       churn_ctx->num_failed_start, 
-                       churn_ctx->num_failed_stop);
-      }
-    churn_ctx->cb(churn_ctx->cb_cls, error_message);
-    GNUNET_free_non_null(error_message);
-    GNUNET_free(churn_ctx);
-    GNUNET_free(shutdown_ctx);
-  }
+    {
+      if ((churn_ctx->num_failed_stop > 0) || (churn_ctx->num_failed_start > 0))
+        {
+          GNUNET_asprintf (
+                           &error_message,
+                           "Churn didn't complete successfully, %u peers failed to start %u peers failed to be stopped!",
+                           churn_ctx->num_failed_start,
+                           churn_ctx->num_failed_stop);
+        }
+      churn_ctx->cb (churn_ctx->cb_cls, error_message);
+      GNUNET_free_non_null (error_message);
+      GNUNET_free (churn_ctx);
+      GNUNET_free (shutdown_ctx);
+    }
 }
 
 /**
@@ -3863,18 +6247,18 @@ churn_stop_callback (void *cls, const char *emsg)
  * @return the number of currently running peers in the peer group
  */
 unsigned int
-GNUNET_TESTING_daemons_running (struct GNUNET_TESTING_PeerGroup *pg)
+GNUNET_TESTING_daemons_running(struct GNUNET_TESTING_PeerGroup *pg)
 {
   unsigned int i;
   unsigned int running = 0;
   for (i = 0; i < pg->total; i++)
-  {
-    if (pg->peers[i].daemon->running == GNUNET_YES)
     {
-      GNUNET_assert(running != -1);
-      running++;
+      if (pg->peers[i].daemon->running == GNUNET_YES)
+        {
+          GNUNET_assert (running != -1);
+          running++;
+        }
     }
-  }
   return running;
 }
 
@@ -3886,25 +6270,34 @@ GNUNET_TESTING_daemons_running (struct GNUNET_TESTING_PeerGroup *pg)
  * to calling gnunet-arm N times all at once).
  */
 static void
-schedule_churn_shutdown_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
+schedule_churn_shutdown_task(void *cls,
+                             const struct GNUNET_SCHEDULER_TaskContext *tc)
 {
   struct PeerShutdownContext *peer_shutdown_ctx = cls;
   struct ShutdownContext *shutdown_ctx;
-
-  GNUNET_assert(peer_shutdown_ctx != NULL);
+  struct ChurnContext *churn_ctx;
+  GNUNET_assert (peer_shutdown_ctx != NULL);
   shutdown_ctx = peer_shutdown_ctx->shutdown_ctx;
-  GNUNET_assert(shutdown_ctx != NULL);
-
-  if (shutdown_ctx->outstanding > MAX_CONCURRENT_SHUTDOWN)
-    GNUNET_SCHEDULER_add_delayed(peer_shutdown_ctx->daemon->sched, GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MILLISECONDS, 100), &schedule_churn_shutdown_task, peer_shutdown_ctx);
+  GNUNET_assert (shutdown_ctx != NULL);
+  churn_ctx = (struct ChurnContext *) shutdown_ctx->cb_cls;
+  if (shutdown_ctx->outstanding > churn_ctx->pg->max_concurrent_ssh)
+    GNUNET_SCHEDULER_add_delayed (
+                                  GNUNET_TIME_relative_multiply (
+                                                                 GNUNET_TIME_UNIT_MILLISECONDS,
+                                                                 100),
+                                  &schedule_churn_shutdown_task,
+                                  peer_shutdown_ctx);
   else
     {
       shutdown_ctx->outstanding++;
-      GNUNET_TESTING_daemon_stop (peer_shutdown_ctx->daemon, shutdown_ctx->timeout, shutdown_ctx->cb, shutdown_ctx, GNUNET_NO, GNUNET_YES);
-      GNUNET_free(peer_shutdown_ctx);
+      GNUNET_TESTING_daemon_stop (peer_shutdown_ctx->daemon,
+                                  shutdown_ctx->timeout, shutdown_ctx->cb,
+                                  shutdown_ctx, GNUNET_NO, GNUNET_YES);
+      GNUNET_free (peer_shutdown_ctx);
     }
 }
 
+
 /**
  * Simulate churn by stopping some peers (and possibly
  * re-starting others if churn is called multiple times).  This
@@ -3926,12 +6319,10 @@ schedule_churn_shutdown_task (void *cls, const struct GNUNET_SCHEDULER_TaskConte
  * @param cb_cls closure for cb
  */
 void
-GNUNET_TESTING_daemons_churn (struct GNUNET_TESTING_PeerGroup *pg,
-                              unsigned int voff,
-                              unsigned int von,
-                              struct GNUNET_TIME_Relative timeout,
-                              GNUNET_TESTING_NotifyCompletion cb,
-                              void *cb_cls)
+GNUNET_TESTING_daemons_churn(struct GNUNET_TESTING_PeerGroup *pg,
+                             unsigned int voff, unsigned int von,
+                             struct GNUNET_TIME_Relative timeout,
+                             GNUNET_TESTING_NotifyCompletion cb, void *cb_cls)
 {
   struct ChurnContext *churn_ctx;
   struct ShutdownContext *shutdown_ctx;
@@ -3949,60 +6340,69 @@ GNUNET_TESTING_daemons_churn (struct GNUNET_TESTING_PeerGroup *pg,
   unsigned int *running_permute;
   unsigned int *stopped_permute;
 
+  shutdown_ctx = NULL;
+  peer_shutdown_ctx = NULL;
+  peer_restart_ctx = NULL;
+  churn_startup_ctx = NULL;
+
   running = 0;
   stopped = 0;
 
   if ((von == 0) && (voff == 0)) /* No peers at all? */
     {
-      cb(cb_cls, NULL);
+      cb (cb_cls, NULL);
       return;
     }
 
   for (i = 0; i < pg->total; i++)
-  {
-    if (pg->peers[i].daemon->running == GNUNET_YES)
     {
-      GNUNET_assert(running != -1);
-      running++;
-    }
-    else
-    {
-      GNUNET_assert(stopped != -1);
-      stopped++;
+      if (pg->peers[i].daemon->running == GNUNET_YES)
+        {
+          GNUNET_assert (running != -1);
+          running++;
+        }
+      else
+        {
+          GNUNET_assert (stopped != -1);
+          stopped++;
+        }
     }
-  }
 
   if (voff > running)
-  {
-    GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Trying to stop more peers than are currently running!\n");
-    cb(cb_cls, "Trying to stop more peers than are currently running!");
-    return;
-  }
+    {
+      GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
+                  "Trying to stop more peers than are currently running!\n");
+      cb (cb_cls, "Trying to stop more peers than are currently running!");
+      return;
+    }
 
   if (von > stopped)
-  {
-    GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Trying to start more peers than are currently stopped!\n");
-    cb(cb_cls, "Trying to start more peers than are currently stopped!");
-    return;
-  }
+    {
+      GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
+                  "Trying to start more peers than are currently stopped!\n");
+      cb (cb_cls, "Trying to start more peers than are currently stopped!");
+      return;
+    }
 
-  churn_ctx = GNUNET_malloc(sizeof(struct ChurnContext));
+  churn_ctx = GNUNET_malloc (sizeof (struct ChurnContext));
 
   running_arr = NULL;
   if (running > 0)
-    running_arr = GNUNET_malloc(running * sizeof(unsigned int));
+    running_arr = GNUNET_malloc (running * sizeof (unsigned int));
 
   stopped_arr = NULL;
   if (stopped > 0)
-    stopped_arr = GNUNET_malloc(stopped * sizeof(unsigned int));
+    stopped_arr = GNUNET_malloc (stopped * sizeof (unsigned int));
 
   running_permute = NULL;
   stopped_permute = NULL;
 
   if (running > 0)
-    running_permute = GNUNET_CRYPTO_random_permute(GNUNET_CRYPTO_QUALITY_WEAK, running);
+    running_permute = GNUNET_CRYPTO_random_permute (GNUNET_CRYPTO_QUALITY_WEAK,
+                                                    running);
   if (stopped > 0)
-    stopped_permute = GNUNET_CRYPTO_random_permute(GNUNET_CRYPTO_QUALITY_WEAK, stopped);
+    stopped_permute = GNUNET_CRYPTO_random_permute (GNUNET_CRYPTO_QUALITY_WEAK,
+                                                    stopped);
 
   total_running = running;
   total_stopped = stopped;
@@ -4012,28 +6412,29 @@ GNUNET_TESTING_daemons_churn (struct GNUNET_TESTING_PeerGroup *pg,
   churn_ctx->num_to_start = von;
   churn_ctx->num_to_stop = voff;
   churn_ctx->cb = cb;
-  churn_ctx->cb_cls = cb_cls;  
+  churn_ctx->cb_cls = cb_cls;
+  churn_ctx->pg = pg;
 
   for (i = 0; i < pg->total; i++)
-  {
-    if (pg->peers[i].daemon->running == GNUNET_YES)
-    {
-      GNUNET_assert((running_arr != NULL) && (total_running > running));
-      running_arr[running] = i;
-      running++;
-    }
-    else
     {
-      GNUNET_assert((stopped_arr != NULL) && (total_stopped > stopped));
-      stopped_arr[stopped] = i;
-      stopped++;
+      if (pg->peers[i].daemon->running == GNUNET_YES)
+        {
+          GNUNET_assert ((running_arr != NULL) && (total_running > running));
+          running_arr[running] = i;
+          running++;
+        }
+      else
+        {
+          GNUNET_assert ((stopped_arr != NULL) && (total_stopped > stopped));
+          stopped_arr[stopped] = i;
+          stopped++;
+        }
     }
-  }
 
-  GNUNET_assert(running >= voff);
+  GNUNET_assert (running >= voff);
   if (voff > 0)
     {
-      shutdown_ctx = GNUNET_malloc(sizeof(struct ShutdownContext));
+      shutdown_ctx = GNUNET_malloc (sizeof (struct ShutdownContext));
       shutdown_ctx->cb = &churn_stop_callback;
       shutdown_ctx->cb_cls = churn_ctx;
       shutdown_ctx->total_peers = voff;
@@ -4041,49 +6442,55 @@ GNUNET_TESTING_daemons_churn (struct GNUNET_TESTING_PeerGroup *pg,
     }
 
   for (i = 0; i < voff; i++)
-  {
+    {
 #if DEBUG_CHURN
-    GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Stopping peer %d!\n", running_permute[i]);
+      GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Stopping peer %d!\n",
+          running_permute[i]);
 #endif
-    GNUNET_assert(running_arr != NULL);
-    peer_shutdown_ctx = GNUNET_malloc(sizeof(struct PeerShutdownContext));
-    peer_shutdown_ctx->daemon = pg->peers[running_arr[running_permute[i]]].daemon;
-    peer_shutdown_ctx->shutdown_ctx = shutdown_ctx;
-    GNUNET_SCHEDULER_add_now(peer_shutdown_ctx->daemon->sched, &schedule_churn_shutdown_task, peer_shutdown_ctx);
+      GNUNET_assert (running_arr != NULL);
+      peer_shutdown_ctx = GNUNET_malloc (sizeof (struct PeerShutdownContext));
+      peer_shutdown_ctx->daemon
+          = pg->peers[running_arr[running_permute[i]]].daemon;
+      peer_shutdown_ctx->shutdown_ctx = shutdown_ctx;
+      GNUNET_SCHEDULER_add_now (&schedule_churn_shutdown_task,
+                                peer_shutdown_ctx);
 
-    /*
-    GNUNET_TESTING_daemon_stop (pg->peers[running_arr[running_permute[i]]].daemon,
-                               timeout, 
-                               &churn_stop_callback, churn_ctx, 
-                               GNUNET_NO, GNUNET_YES); */
-  }
+      /*
+       GNUNET_TESTING_daemon_stop (pg->peers[running_arr[running_permute[i]]].daemon,
+       timeout,
+       &churn_stop_callback, churn_ctx,
+       GNUNET_NO, GNUNET_YES); */
+    }
 
-  GNUNET_assert(stopped >= von);
+  GNUNET_assert (stopped >= von);
   if (von > 0)
     {
-      churn_startup_ctx = GNUNET_malloc(sizeof(struct ChurnRestartContext));
+      churn_startup_ctx = GNUNET_malloc (sizeof (struct ChurnRestartContext));
       churn_startup_ctx->churn_ctx = churn_ctx;
       churn_startup_ctx->timeout = timeout;
+      churn_startup_ctx->pg = pg;
     }
   for (i = 0; i < von; i++)
     {
 #if DEBUG_CHURN
-      GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "Starting up peer %d!\n", stopped_permute[i]);
+      GNUNET_log (GNUNET_ERROR_TYPE_WARNING, "Starting up peer %d!\n",
+          stopped_permute[i]);
 #endif
-      GNUNET_assert(stopped_arr != NULL);
-      peer_restart_ctx = GNUNET_malloc(sizeof(struct PeerRestartContext));
+      GNUNET_assert (stopped_arr != NULL);
+      peer_restart_ctx = GNUNET_malloc (sizeof (struct PeerRestartContext));
       peer_restart_ctx->churn_restart_ctx = churn_startup_ctx;
-      peer_restart_ctx->daemon = pg->peers[stopped_arr[stopped_permute[i]]].daemon;
-      GNUNET_SCHEDULER_add_now(peer_restart_ctx->daemon->sched, &schedule_churn_restart, peer_restart_ctx);
+      peer_restart_ctx->daemon
+          = pg->peers[stopped_arr[stopped_permute[i]]].daemon;
+      GNUNET_SCHEDULER_add_now (&schedule_churn_restart, peer_restart_ctx);
       /*
-      GNUNET_TESTING_daemon_start_stopped(pg->peers[stopped_arr[stopped_permute[i]]].daemon, 
-                                         timeout, &churn_start_callback, churn_ctx);*/
-  }
+       GNUNET_TESTING_daemon_start_stopped(pg->peers[stopped_arr[stopped_permute[i]]].daemon,
+       timeout, &churn_start_callback, churn_ctx); */
+    }
 
-  GNUNET_free_non_null(running_arr);
-  GNUNET_free_non_null(stopped_arr);
-  GNUNET_free_non_null(running_permute);
-  GNUNET_free_non_null(stopped_permute);
+  GNUNET_free_non_null (running_arr);
+  GNUNET_free_non_null (stopped_arr);
+  GNUNET_free_non_null (running_permute);
+  GNUNET_free_non_null (stopped_permute);
 }
 
 
@@ -4095,16 +6502,16 @@ GNUNET_TESTING_daemons_churn (struct GNUNET_TESTING_PeerGroup *pg,
  * @param callback_cls closure for the callback function
  */
 void
-GNUNET_TESTING_daemons_restart (struct GNUNET_TESTING_PeerGroup *pg,
-                                GNUNET_TESTING_NotifyCompletion callback,
-                                void *callback_cls)
+GNUNET_TESTING_daemons_restart(struct GNUNET_TESTING_PeerGroup *pg,
+                               GNUNET_TESTING_NotifyCompletion callback,
+                               void *callback_cls)
 {
   struct RestartContext *restart_context;
   unsigned int off;
 
   if (pg->total > 0)
     {
-      restart_context = GNUNET_malloc(sizeof(struct RestartContext));
+      restart_context = GNUNET_malloc (sizeof (struct RestartContext));
       restart_context->peer_group = pg;
       restart_context->peers_restarted = 0;
       restart_context->callback = callback;
@@ -4112,11 +6519,13 @@ GNUNET_TESTING_daemons_restart (struct GNUNET_TESTING_PeerGroup *pg,
 
       for (off = 0; off < pg->total; off++)
         {
-          GNUNET_TESTING_daemon_restart (pg->peers[off].daemon, &restart_callback, restart_context);
+          GNUNET_TESTING_daemon_restart (pg->peers[off].daemon,
+                                         &restart_callback, restart_context);
         }
     }
 }
 
+
 /**
  * Start or stop an individual peer from the given group.
  *
@@ -4128,12 +6537,10 @@ GNUNET_TESTING_daemons_restart (struct GNUNET_TESTING_PeerGroup *pg,
  * @param cb_cls closure for cb
  */
 void
-GNUNET_TESTING_daemons_vary (struct GNUNET_TESTING_PeerGroup *pg, 
-                            unsigned int offset,
-                            int desired_status,
-                            struct GNUNET_TIME_Relative timeout,
-                            GNUNET_TESTING_NotifyCompletion cb,
-                            void *cb_cls)
+GNUNET_TESTING_daemons_vary(struct GNUNET_TESTING_PeerGroup *pg,
+                            unsigned int offset, int desired_status,
+                            struct GNUNET_TIME_Relative timeout,
+                            GNUNET_TESTING_NotifyCompletion cb, void *cb_cls)
 {
   struct ShutdownContext *shutdown_ctx;
   struct ChurnRestartContext *startup_ctx;
@@ -4142,33 +6549,34 @@ GNUNET_TESTING_daemons_vary (struct GNUNET_TESTING_PeerGroup *pg,
   if (GNUNET_NO == desired_status)
     {
       if (NULL != pg->peers[offset].daemon)
-       {
-          shutdown_ctx = GNUNET_malloc(sizeof(struct ShutdownContext));
-         churn_ctx = GNUNET_malloc(sizeof(struct ChurnContext));
-         churn_ctx->num_to_start = 0;
-         churn_ctx->num_to_stop = 1;
-         churn_ctx->cb = cb;
-         churn_ctx->cb_cls = cb_cls;
-         shutdown_ctx->cb_cls = churn_ctx;
-         GNUNET_TESTING_daemon_stop(pg->peers[offset].daemon, 
-                                    timeout, &churn_stop_callback, shutdown_ctx,
-                                    GNUNET_NO, GNUNET_YES);     
-       }
+        {
+          shutdown_ctx = GNUNET_malloc (sizeof (struct ShutdownContext));
+          churn_ctx = GNUNET_malloc (sizeof (struct ChurnContext));
+          churn_ctx->num_to_start = 0;
+          churn_ctx->num_to_stop = 1;
+          churn_ctx->cb = cb;
+          churn_ctx->cb_cls = cb_cls;
+          shutdown_ctx->cb_cls = churn_ctx;
+          GNUNET_TESTING_daemon_stop (pg->peers[offset].daemon, timeout,
+                                      &churn_stop_callback, shutdown_ctx,
+                                      GNUNET_NO, GNUNET_YES);
+        }
     }
   else if (GNUNET_YES == desired_status)
     {
       if (NULL == pg->peers[offset].daemon)
-       {
-          startup_ctx = GNUNET_malloc(sizeof(struct ChurnRestartContext));
-         churn_ctx = GNUNET_malloc(sizeof(struct ChurnContext));
-         churn_ctx->num_to_start = 1;
-         churn_ctx->num_to_stop = 0;
-         churn_ctx->cb = cb;
-         churn_ctx->cb_cls = cb_cls;  
-         startup_ctx->churn_ctx = churn_ctx;
-         GNUNET_TESTING_daemon_start_stopped(pg->peers[offset].daemon, 
-                                             timeout, &churn_start_callback, startup_ctx);
-       }
+        {
+          startup_ctx = GNUNET_malloc (sizeof (struct ChurnRestartContext));
+          churn_ctx = GNUNET_malloc (sizeof (struct ChurnContext));
+          churn_ctx->num_to_start = 1;
+          churn_ctx->num_to_stop = 0;
+          churn_ctx->cb = cb;
+          churn_ctx->cb_cls = cb_cls;
+          startup_ctx->churn_ctx = churn_ctx;
+          GNUNET_TESTING_daemon_start_stopped (pg->peers[offset].daemon,
+                                               timeout, &churn_start_callback,
+                                               startup_ctx);
+        }
     }
   else
     GNUNET_break (0);
@@ -4181,12 +6589,19 @@ GNUNET_TESTING_daemons_vary (struct GNUNET_TESTING_PeerGroup *pg,
  * @param cls closure (struct ShutdownContext)
  * @param emsg NULL on success
  */
-void internal_shutdown_callback (void *cls,
-                                 const char *emsg)
+static void
+internal_shutdown_callback(void *cls, const char *emsg)
 {
-  struct ShutdownContext *shutdown_ctx = cls;
+  struct PeerShutdownContext *peer_shutdown_ctx = cls;
+  struct ShutdownContext *shutdown_ctx = peer_shutdown_ctx->shutdown_ctx;
+  unsigned int off;
+  struct OutstandingSSH *ssh_pos;
 
   shutdown_ctx->outstanding--;
+  if (peer_shutdown_ctx->daemon->hostname != NULL)
+    decrement_outstanding_at_host (peer_shutdown_ctx->daemon->hostname,
+                                   shutdown_ctx->pg);
+
   if (emsg == NULL)
     {
       shutdown_ctx->peers_down++;
@@ -4196,14 +6611,32 @@ void internal_shutdown_callback (void *cls,
       shutdown_ctx->peers_failed++;
     }
 
-  if ((shutdown_ctx->cb != NULL) && (shutdown_ctx->peers_down + shutdown_ctx->peers_failed == shutdown_ctx->total_peers))
+  if ((shutdown_ctx->cb != NULL) && (shutdown_ctx->peers_down
+      + shutdown_ctx->peers_failed == shutdown_ctx->total_peers))
     {
       if (shutdown_ctx->peers_failed > 0)
-        shutdown_ctx->cb(shutdown_ctx->cb_cls, "Not all peers successfully shut down!");
+        shutdown_ctx->cb (shutdown_ctx->cb_cls,
+                          "Not all peers successfully shut down!");
       else
-        shutdown_ctx->cb(shutdown_ctx->cb_cls, NULL);
-      GNUNET_free(shutdown_ctx);
+        shutdown_ctx->cb (shutdown_ctx->cb_cls, NULL);
+
+      GNUNET_free (shutdown_ctx->pg->peers);
+      GNUNET_free_non_null(shutdown_ctx->pg->hostkey_data);
+      for (off = 0; off < shutdown_ctx->pg->num_hosts; off++)
+        {
+          GNUNET_free (shutdown_ctx->pg->hosts[off].hostname);
+          GNUNET_free_non_null (shutdown_ctx->pg->hosts[off].username);
+        }
+      GNUNET_free_non_null (shutdown_ctx->pg->hosts);
+      while (NULL != (ssh_pos = shutdown_ctx->pg->ssh_head))
+        {
+          GNUNET_CONTAINER_DLL_remove(shutdown_ctx->pg->ssh_head, shutdown_ctx->pg->ssh_tail, ssh_pos);
+          GNUNET_free(ssh_pos);
+        }
+      GNUNET_free (shutdown_ctx->pg);
+      GNUNET_free (shutdown_ctx);
     }
+  GNUNET_free(peer_shutdown_ctx);
 }
 
 
@@ -4215,25 +6648,38 @@ void internal_shutdown_callback (void *cls,
  * to calling gnunet-arm N times all at once).
  */
 static void
-schedule_shutdown_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext * tc)
+schedule_shutdown_task(void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
 {
   struct PeerShutdownContext *peer_shutdown_ctx = cls;
   struct ShutdownContext *shutdown_ctx;
 
-  GNUNET_assert(peer_shutdown_ctx != NULL);
+  GNUNET_assert (peer_shutdown_ctx != NULL);
   shutdown_ctx = peer_shutdown_ctx->shutdown_ctx;
-  GNUNET_assert(shutdown_ctx != NULL);
+  GNUNET_assert (shutdown_ctx != NULL);
 
-  if (shutdown_ctx->outstanding > MAX_CONCURRENT_SHUTDOWN)
-    GNUNET_SCHEDULER_add_delayed(peer_shutdown_ctx->daemon->sched, GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MILLISECONDS, 100), &schedule_shutdown_task, peer_shutdown_ctx);
-  else
+  if ((shutdown_ctx->outstanding < shutdown_ctx->pg->max_concurrent_ssh)
+      || ((peer_shutdown_ctx->daemon->hostname != NULL)
+          && (count_outstanding_at_host (peer_shutdown_ctx->daemon->hostname,
+                                         shutdown_ctx->pg)
+              < shutdown_ctx->pg->max_concurrent_ssh)))
     {
+      if (peer_shutdown_ctx->daemon->hostname != NULL)
+        increment_outstanding_at_host (peer_shutdown_ctx->daemon->hostname,
+                                       shutdown_ctx->pg);
       shutdown_ctx->outstanding++;
-      GNUNET_TESTING_daemon_stop (peer_shutdown_ctx->daemon, shutdown_ctx->timeout, &internal_shutdown_callback, shutdown_ctx, GNUNET_YES, GNUNET_NO);
-      GNUNET_free(peer_shutdown_ctx);
+      GNUNET_TESTING_daemon_stop (peer_shutdown_ctx->daemon,
+                                  shutdown_ctx->timeout,
+                                  &internal_shutdown_callback, peer_shutdown_ctx,
+                                  GNUNET_YES, GNUNET_NO);
     }
+  else
+    GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_MILLISECONDS,
+                                                                 100),
+                                  &schedule_shutdown_task, peer_shutdown_ctx);
+
 }
 
+
 /**
  * Shutdown all peers started in the given group.
  *
@@ -4243,49 +6689,83 @@ schedule_shutdown_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext * t
  * @param cb_cls closure for cb
  */
 void
-GNUNET_TESTING_daemons_stop (struct GNUNET_TESTING_PeerGroup *pg, 
-                            struct GNUNET_TIME_Relative timeout,
-                            GNUNET_TESTING_NotifyCompletion cb,
-                             void *cb_cls)
+GNUNET_TESTING_daemons_stop(struct GNUNET_TESTING_PeerGroup *pg,
+                            struct GNUNET_TIME_Relative timeout,
+                            GNUNET_TESTING_NotifyCompletion cb, void *cb_cls)
 {
   unsigned int off;
   struct ShutdownContext *shutdown_ctx;
   struct PeerShutdownContext *peer_shutdown_ctx;
+#if OLD
+  struct PeerConnection *conn_iter;
+  struct PeerConnection *temp_conn;
+#endif
 
-  GNUNET_assert(pg->total > 0);
+  GNUNET_assert (pg->total > 0);
 
-  shutdown_ctx = GNUNET_malloc(sizeof(struct ShutdownContext));
+  shutdown_ctx = GNUNET_malloc (sizeof (struct ShutdownContext));
   shutdown_ctx->cb = cb;
   shutdown_ctx->cb_cls = cb_cls;
   shutdown_ctx->total_peers = pg->total;
   shutdown_ctx->timeout = timeout;
+  shutdown_ctx->pg = pg;
   /* shtudown_ctx->outstanding = 0; */
 
   for (off = 0; off < pg->total; off++)
     {
-      GNUNET_assert(NULL != pg->peers[off].daemon);
-      peer_shutdown_ctx = GNUNET_malloc(sizeof(struct PeerShutdownContext));
+      GNUNET_assert (NULL != pg->peers[off].daemon);
+      peer_shutdown_ctx = GNUNET_malloc (sizeof (struct PeerShutdownContext));
       peer_shutdown_ctx->daemon = pg->peers[off].daemon;
       peer_shutdown_ctx->shutdown_ctx = shutdown_ctx;
-      GNUNET_SCHEDULER_add_now(pg->peers[off].daemon->sched, &schedule_shutdown_task, peer_shutdown_ctx);
-      //GNUNET_TESTING_daemon_stop (pg->peers[off].daemon, timeout, shutdown_cb, shutdown_ctx, GNUNET_YES, GNUNET_NO);
+      GNUNET_SCHEDULER_add_now (&schedule_shutdown_task, peer_shutdown_ctx);
+
       if (NULL != pg->peers[off].cfg)
+      {
         GNUNET_CONFIGURATION_destroy (pg->peers[off].cfg);
+        pg->peers[off].cfg = NULL;
+      }
+#if OLD
+      conn_iter = pg->peers[off].allowed_peers_head;
+      while (conn_iter != NULL)
+        {
+          temp_conn = conn_iter->next;
+          GNUNET_free(conn_iter);
+          conn_iter = temp_conn;
+        }
+
+      conn_iter = pg->peers[off].connect_peers_head;
+      while (conn_iter != NULL)
+        {
+          temp_conn = conn_iter->next;
+          GNUNET_free(conn_iter);
+          conn_iter = temp_conn;
+        }
+
+      conn_iter = pg->peers[off].blacklisted_peers_head;
+      while (conn_iter != NULL)
+        {
+          temp_conn = conn_iter->next;
+          GNUNET_free(conn_iter);
+          conn_iter = temp_conn;
+        }
+
+      conn_iter = pg->peers[off].connect_peers_working_set_head;
+      while (conn_iter != NULL)
+        {
+          temp_conn = conn_iter->next;
+          GNUNET_free(conn_iter);
+          conn_iter = temp_conn;
+        }
+#else
       if (pg->peers[off].allowed_peers != NULL)
-        GNUNET_CONTAINER_multihashmap_destroy(pg->peers[off].allowed_peers);
+       GNUNET_CONTAINER_multihashmap_destroy (pg->peers[off].allowed_peers);
       if (pg->peers[off].connect_peers != NULL)
-        GNUNET_CONTAINER_multihashmap_destroy(pg->peers[off].connect_peers);
+       GNUNET_CONTAINER_multihashmap_destroy (pg->peers[off].connect_peers);
       if (pg->peers[off].blacklisted_peers != NULL)
-        GNUNET_CONTAINER_multihashmap_destroy(pg->peers[off].blacklisted_peers);
-    }
-  GNUNET_free (pg->peers);
-  if (NULL != pg->hosts)
-    {
-      GNUNET_free (pg->hosts[0].hostname);
-      GNUNET_free (pg->hosts);
+       GNUNET_CONTAINER_multihashmap_destroy (pg->
+                                              peers[off].blacklisted_peers);
+#endif
     }
-  GNUNET_free (pg);
 }
 
-
 /* end of testing_group.c */