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[GNUnet-SVN] [gnunet] branch master updated: towards flow control in TNG


From: gnunet
Subject: [GNUnet-SVN] [gnunet] branch master updated: towards flow control in TNG
Date: Sun, 28 Apr 2019 19:32:36 +0200

This is an automated email from the git hooks/post-receive script.

grothoff pushed a commit to branch master
in repository gnunet.

The following commit(s) were added to refs/heads/master by this push:
     new 3f945e679 towards flow control in TNG
3f945e679 is described below

commit 3f945e6798d8d736ceb104b59ea1269a7abdfe8a
Author: Christian Grothoff <address@hidden>
AuthorDate: Sun Apr 28 19:32:10 2019 +0200

    towards flow control in TNG
---
 src/ats-tests/ats-testing.h                        | 100 +--
 src/core/gnunet-service-core_kx.c                  | 681 ++++++++++-----------
 src/hostlist/test_gnunet_daemon_hostlist.c         | 124 ++--
 .../test_gnunet_daemon_hostlist_reconnect.c        | 142 ++---
 src/include/gnunet_protocols.h                     |   8 +
 .../gnunet_transport_communication_service.h       | 113 ++--
 src/include/gnunet_transport_core_service.h        |  85 +--
 src/include/gnunet_transport_service.h             | 232 +++++--
 src/namestore/namestore_api_monitor.c              |  95 ++-
 .../gnunet-service-testbed_connectionpool.c        | 230 ++++---
 .../gnunet-service-testbed_connectionpool.h        |  56 +-
 src/transport/gnunet-service-tng.c                 | 575 ++++++++---------
 src/transport/gnunet-transport-profiler.c          | 232 +++----
 src/transport/gnunet-transport.c                   | 571 ++++++++---------
 src/transport/transport-testing.h                  | 201 +++---
 src/transport/transport.h                          |  56 +-
 src/transport/transport_api2_core.c                | 506 ++++++---------
 src/transport/transport_api_core.c                 | 260 +++-----
 18 files changed, 1983 insertions(+), 2284 deletions(-)

diff --git a/src/ats-tests/ats-testing.h b/src/ats-tests/ats-testing.h
index 9c4353b52..f6df5a9bd 100644
--- a/src/ats-tests/ats-testing.h
+++ b/src/ats-tests/ats-testing.h
@@ -28,7 +28,7 @@
 #include "gnunet_testbed_service.h"
 #include "gnunet_ats_service.h"
 #include "gnunet_core_service.h"
-#include "gnunet_transport_core_service.h"
+#include "gnunet_transport_service.h"
 
 #define TEST_ATS_PREFERENCE_DEFAULT 1.0
 
@@ -82,10 +82,10 @@ enum GeneratorType
  * @param masters array of master peers
  * @param slaves array of master peers
  */
-typedef void
-(*GNUNET_ATS_TEST_TopologySetupDoneCallback) (void *cls,
-                                             struct BenchmarkPeer *masters,
-                                             struct BenchmarkPeer *slaves);
+typedef void (*GNUNET_ATS_TEST_TopologySetupDoneCallback) (
+  void *cls,
+  struct BenchmarkPeer *masters,
+  struct BenchmarkPeer *slaves);
 
 /**
  * Callback called when logging is required for the data contained
@@ -97,13 +97,13 @@ typedef void
  * @param bandwidth_in bandwidth inbound
  * @param prop performance information
  */
-typedef void
-(*GNUNET_ATS_TEST_LogRequest) (void *cls,
-    const struct GNUNET_HELLO_Address *address,
-    int address_active,
-    struct GNUNET_BANDWIDTH_Value32NBO bandwidth_out,
-    struct GNUNET_BANDWIDTH_Value32NBO bandwidth_in,
-    const struct GNUNET_ATS_Properties *prop);
+typedef void (*GNUNET_ATS_TEST_LogRequest) (
+  void *cls,
+  const struct GNUNET_HELLO_Address *address,
+  int address_active,
+  struct GNUNET_BANDWIDTH_Value32NBO bandwidth_out,
+  struct GNUNET_BANDWIDTH_Value32NBO bandwidth_in,
+  const struct GNUNET_ATS_Properties *prop);
 
 /**
  * Information we track for a peer in the testbed.
@@ -176,7 +176,7 @@ struct BenchmarkPeer
    * Masters only
    * Progress task
    */
-  struct GNUNET_SCHEDULER_Task * ats_task;
+  struct GNUNET_SCHEDULER_Task *ats_task;
 
   /**
    * Masters only
@@ -241,7 +241,7 @@ struct TrafficGenerator
   long int max_rate;
   struct GNUNET_TIME_Relative duration_period;
 
-  struct GNUNET_SCHEDULER_Task * send_task;
+  struct GNUNET_SCHEDULER_Task *send_task;
   struct GNUNET_TIME_Absolute next_ping_transmission;
   struct GNUNET_TIME_Absolute time_start;
 };
@@ -264,7 +264,7 @@ struct PreferenceGenerator
   struct GNUNET_TIME_Relative duration_period;
   struct GNUNET_TIME_Relative frequency;
 
-  struct GNUNET_SCHEDULER_Task * set_task;
+  struct GNUNET_SCHEDULER_Task *set_task;
   struct GNUNET_TIME_Absolute next_ping_transmission;
   struct GNUNET_TIME_Absolute time_start;
 };
@@ -353,7 +353,6 @@ struct BenchmarkPartner
    * Current preference values for delay
    */
   double pref_delay;
-
 };
 
 
@@ -480,13 +479,12 @@ struct Episode;
 
 struct Experiment;
 
-typedef void
-(*GNUNET_ATS_TESTING_EpisodeDoneCallback) (struct Episode *e);
+typedef void (*GNUNET_ATS_TESTING_EpisodeDoneCallback) (struct Episode *e);
 
-typedef void
-(*GNUNET_ATS_TESTING_ExperimentDoneCallback) (struct Experiment *e,
-                                             struct GNUNET_TIME_Relative 
duration,
-                                             int success);
+typedef void (*GNUNET_ATS_TESTING_ExperimentDoneCallback) (
+  struct Experiment *e,
+  struct GNUNET_TIME_Relative duration,
+  int success);
 
 /**
  * An operation in an experiment
@@ -533,8 +531,8 @@ struct Experiment
   unsigned int num_episodes;
   struct Episode *start;
 
-  struct GNUNET_SCHEDULER_Task * experiment_timeout_task;
-  struct GNUNET_SCHEDULER_Task * episode_timeout_task;
+  struct GNUNET_SCHEDULER_Task *experiment_timeout_task;
+  struct GNUNET_SCHEDULER_Task *episode_timeout_task;
   struct Episode *cur;
 
   GNUNET_ATS_TESTING_EpisodeDoneCallback ep_done_cb;
@@ -552,9 +550,10 @@ extern struct GNUNET_CONFIGURATION_Handle *cfg;
  * @param e_done_cb the experiment is completed
  */
 void
-GNUNET_ATS_TEST_experimentation_run (struct Experiment *e,
-                                     GNUNET_ATS_TESTING_EpisodeDoneCallback 
ep_done_cb,
-                                     GNUNET_ATS_TESTING_ExperimentDoneCallback 
e_done_cb);
+GNUNET_ATS_TEST_experimentation_run (
+  struct Experiment *e,
+  GNUNET_ATS_TESTING_EpisodeDoneCallback ep_done_cb,
+  GNUNET_ATS_TESTING_ExperimentDoneCallback e_done_cb);
 
 
 /**
@@ -633,14 +632,15 @@ GNUNET_ATS_TEST_generate_traffic_stop_all (void);
  * @return the traffic generator
  */
 struct PreferenceGenerator *
-GNUNET_ATS_TEST_generate_preferences_start (struct BenchmarkPeer *src,
-                                            struct BenchmarkPartner *dest,
-                                            enum GeneratorType type,
-                                            unsigned int base_value,
-                                            unsigned int value_rate,
-                                            struct GNUNET_TIME_Relative period,
-                                            struct GNUNET_TIME_Relative 
frequency,
-                                            enum GNUNET_ATS_PreferenceKind 
kind);
+GNUNET_ATS_TEST_generate_preferences_start (
+  struct BenchmarkPeer *src,
+  struct BenchmarkPartner *dest,
+  enum GeneratorType type,
+  unsigned int base_value,
+  unsigned int value_rate,
+  struct GNUNET_TIME_Relative period,
+  struct GNUNET_TIME_Relative frequency,
+  enum GNUNET_ATS_PreferenceKind kind);
 
 
 void
@@ -664,11 +664,11 @@ GNUNET_ATS_TEST_generate_preferences_stop_all (void);
  */
 struct LoggingHandle *
 GNUNET_ATS_TEST_logging_start (struct GNUNET_TIME_Relative log_frequency,
-                              const char *testname,
-                              struct BenchmarkPeer *masters,
-                              int num_masters,
-                              int num_slaves,
-                              int verbose);
+                               const char *testname,
+                               struct BenchmarkPeer *masters,
+                               int num_masters,
+                               int num_slaves,
+                               int verbose);
 
 
 /**
@@ -729,20 +729,22 @@ GNUNET_ATS_TEST_get_partner (int src, int dest);
  * @param cfg_file configuration file to use for the peers
  * @param num_slaves number of slaves
  * @param num_masters number of masters
- * @param test_core connect to CORE service (#GNUNET_YES) or transport 
(#GNUNET_NO)
+ * @param test_core connect to CORE service (#GNUNET_YES) or transport
+ * (#GNUNET_NO)
  * @param done_cb function to call when topology is setup
  * @param done_cb_cls cls for callback
  * @param log_request_cb callback to call when logging is required
  */
 void
-GNUNET_ATS_TEST_create_topology (char *name,
-                                 char *cfg_file,
-                                 unsigned int num_slaves,
-                                 unsigned int num_masters,
-                                 int test_core,
-                                 GNUNET_ATS_TEST_TopologySetupDoneCallback 
done_cb,
-                                 void *done_cb_cls,
-                                 GNUNET_ATS_TEST_LogRequest ats_perf_cb);
+GNUNET_ATS_TEST_create_topology (
+  char *name,
+  char *cfg_file,
+  unsigned int num_slaves,
+  unsigned int num_masters,
+  int test_core,
+  GNUNET_ATS_TEST_TopologySetupDoneCallback done_cb,
+  void *done_cb_cls,
+  GNUNET_ATS_TEST_LogRequest ats_perf_cb);
 
 
 /**
diff --git a/src/core/gnunet-service-core_kx.c 
b/src/core/gnunet-service-core_kx.c
index bfd855285..d226b65e2 100644
--- a/src/core/gnunet-service-core_kx.c
+++ b/src/core/gnunet-service-core_kx.c
@@ -11,7 +11,7 @@
      WITHOUT ANY WARRANTY; without even the implied warranty of
      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      Affero General Public License for more details.
-    
+
      You should have received a copy of the GNU Affero General Public License
      along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
@@ -20,7 +20,8 @@
 
 /**
  * @file core/gnunet-service-core_kx.c
- * @brief code for managing the key exchange (SET_KEY, PING, PONG) with other 
peers
+ * @brief code for managing the key exchange (SET_KEY, PING, PONG) with other
+ * peers
  * @author Christian Grothoff
  */
 #include "platform.h"
@@ -28,7 +29,7 @@
 #include "gnunet-service-core.h"
 #include "gnunet-service-core_sessions.h"
 #include "gnunet_statistics_service.h"
-#include "gnunet_transport_core_service.h"
+#include "gnunet_transport_service.h"
 #include "gnunet_constants.h"
 #include "gnunet_signatures.h"
 #include "gnunet_protocols.h"
@@ -42,22 +43,26 @@
 /**
  * How long do we wait for SET_KEY confirmation initially?
  */
-#define INITIAL_SET_KEY_RETRY_FREQUENCY GNUNET_TIME_relative_multiply 
(GNUNET_TIME_UNIT_SECONDS, 10)
+#define INITIAL_SET_KEY_RETRY_FREQUENCY \
+  GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 10)
 
 /**
  * What is the minimum frequency for a PING message?
  */
-#define MIN_PING_FREQUENCY GNUNET_TIME_relative_multiply 
(GNUNET_TIME_UNIT_SECONDS, 5)
+#define MIN_PING_FREQUENCY \
+  GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 5)
 
 /**
  * How often do we rekey?
  */
-#define REKEY_FREQUENCY GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_HOURS, 
12)
+#define REKEY_FREQUENCY \
+  GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_HOURS, 12)
 
 /**
  * What time difference do we tolerate?
  */
-#define REKEY_TOLERANCE GNUNET_TIME_relative_multiply 
(GNUNET_TIME_UNIT_MINUTES, 5)
+#define REKEY_TOLERANCE \
+  GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_MINUTES, 5)
 
 /**
  * What is the maximum age of a message for us to consider processing
@@ -69,7 +74,6 @@
 #define MAX_MESSAGE_AGE GNUNET_TIME_UNIT_DAYS
 
 
-
 GNUNET_NETWORK_STRUCT_BEGIN
 
 /**
@@ -120,7 +124,6 @@ struct EphemeralKeyMessage
    * ephemeral public key).
    */
   struct GNUNET_PeerIdentity origin_identity;
-
 };
 
 
@@ -228,7 +231,6 @@ struct EncryptedMessage
    * (recent messages are caught with the sequence number).
    */
   struct GNUNET_TIME_AbsoluteNBO timestamp;
-
 };
 GNUNET_NETWORK_STRUCT_END
 
@@ -237,7 +239,8 @@ GNUNET_NETWORK_STRUCT_END
  * Number of bytes (at the beginning) of `struct EncryptedMessage`
  * that are NOT encrypted.
  */
-#define ENCRYPTED_HEADER_SIZE (offsetof(struct EncryptedMessage, 
sequence_number))
+#define ENCRYPTED_HEADER_SIZE \
+  (offsetof (struct EncryptedMessage, sequence_number))
 
 
 /**
@@ -354,7 +357,6 @@ struct GSC_KeyExchangeInfo
    * What is our connection status?
    */
   enum GNUNET_CORE_KxState status;
-
 };
 
 
@@ -411,8 +413,8 @@ calculate_seed (struct GSC_KeyExchangeInfo *kx)
   /* Note: may want to make this non-random and instead
      derive from key material to avoid having an undetectable
      side-channel */
-  return htonl (GNUNET_CRYPTO_random_u32
-               (GNUNET_CRYPTO_QUALITY_NONCE, UINT32_MAX));
+  return htonl (
+    GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_NONCE, UINT32_MAX));
 }
 
 
@@ -431,9 +433,7 @@ monitor_notify_all (struct GSC_KeyExchangeInfo *kx)
   msg.state = htonl ((uint32_t) kx->status);
   msg.peer = *kx->peer;
   msg.timeout = GNUNET_TIME_absolute_hton (kx->timeout);
-  GNUNET_notification_context_broadcast (nc,
-                                        &msg.header,
-                                        GNUNET_NO);
+  GNUNET_notification_context_broadcast (nc, &msg.header, GNUNET_NO);
   kx->last_notify_timeout = kx->timeout;
 }
 
@@ -453,10 +453,8 @@ derive_auth_key (struct GNUNET_CRYPTO_AuthKey *akey,
   static const char ctx[] = "authentication key";
 #if DEBUG_KX
   struct GNUNET_HashCode sh;
-  
-  GNUNET_CRYPTO_hash (skey,
-                     sizeof (*skey),
-                     &sh);
+
+  GNUNET_CRYPTO_hash (skey, sizeof (*skey), &sh);
   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
               "Deriving Auth key from SKEY %s and seed %u\n",
               GNUNET_h2s (&sh),
@@ -464,9 +462,13 @@ derive_auth_key (struct GNUNET_CRYPTO_AuthKey *akey,
 #endif
   GNUNET_CRYPTO_hmac_derive_key (akey,
                                  skey,
-                                 &seed, sizeof (seed),
-                                 skey, sizeof (struct 
GNUNET_CRYPTO_SymmetricSessionKey),
-                                 ctx, sizeof (ctx),
+                                 &seed,
+                                 sizeof (seed),
+                                 skey,
+                                 sizeof (
+                                   struct GNUNET_CRYPTO_SymmetricSessionKey),
+                                 ctx,
+                                 sizeof (ctx),
                                  NULL);
 }
 
@@ -488,10 +490,8 @@ derive_iv (struct 
GNUNET_CRYPTO_SymmetricInitializationVector *iv,
   static const char ctx[] = "initialization vector";
 #if DEBUG_KX
   struct GNUNET_HashCode sh;
-  
-  GNUNET_CRYPTO_hash (skey,
-                     sizeof (*skey),
-                     &sh);
+
+  GNUNET_CRYPTO_hash (skey, sizeof (*skey), &sh);
   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
               "Deriving IV from SKEY %s and seed %u for peer %s\n",
               GNUNET_h2s (&sh),
@@ -500,10 +500,13 @@ derive_iv (struct 
GNUNET_CRYPTO_SymmetricInitializationVector *iv,
 #endif
   GNUNET_CRYPTO_symmetric_derive_iv (iv,
                                      skey,
-                                     &seed, sizeof (seed),
-                                    identity,
-                                    sizeof (struct GNUNET_PeerIdentity), ctx,
-                                    sizeof (ctx), NULL);
+                                     &seed,
+                                     sizeof (seed),
+                                     identity,
+                                     sizeof (struct GNUNET_PeerIdentity),
+                                     ctx,
+                                     sizeof (ctx),
+                                     NULL);
 }
 
 
@@ -526,10 +529,8 @@ derive_pong_iv (struct 
GNUNET_CRYPTO_SymmetricInitializationVector *iv,
   static const char ctx[] = "pong initialization vector";
 #if DEBUG_KX
   struct GNUNET_HashCode sh;
-  
-  GNUNET_CRYPTO_hash (skey,
-                     sizeof (*skey),
-                     &sh);
+
+  GNUNET_CRYPTO_hash (skey, sizeof (*skey), &sh);
   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
               "Deriving PONG IV from SKEY %s and seed %u/%u for %s\n",
               GNUNET_h2s (&sh),
@@ -539,12 +540,15 @@ derive_pong_iv (struct 
GNUNET_CRYPTO_SymmetricInitializationVector *iv,
 #endif
   GNUNET_CRYPTO_symmetric_derive_iv (iv,
                                      skey,
-                                     &seed, sizeof (seed),
-                                    identity,
-                                    sizeof (struct GNUNET_PeerIdentity),
-                                    &challenge, sizeof (challenge),
-                                    ctx, sizeof (ctx),
-                                    NULL);
+                                     &seed,
+                                     sizeof (seed),
+                                     identity,
+                                     sizeof (struct GNUNET_PeerIdentity),
+                                     &challenge,
+                                     sizeof (challenge),
+                                     ctx,
+                                     sizeof (ctx),
+                                     NULL);
 }
 
 
@@ -558,29 +562,32 @@ derive_pong_iv (struct 
GNUNET_CRYPTO_SymmetricInitializationVector *iv,
  */
 static void
 derive_aes_key (const struct GNUNET_PeerIdentity *sender,
-               const struct GNUNET_PeerIdentity *receiver,
-               const struct GNUNET_HashCode *key_material,
-               struct GNUNET_CRYPTO_SymmetricSessionKey *skey)
+                const struct GNUNET_PeerIdentity *receiver,
+                const struct GNUNET_HashCode *key_material,
+                struct GNUNET_CRYPTO_SymmetricSessionKey *skey)
 {
   static const char ctx[] = "aes key generation vector";
 #if DEBUG_KX
   struct GNUNET_HashCode sh;
-  
-  GNUNET_CRYPTO_hash (skey,
-                     sizeof (*skey),
-                     &sh);
+
+  GNUNET_CRYPTO_hash (skey, sizeof (*skey), &sh);
   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
               "Deriving AES Keys for %s to %s from %s\n",
               GNUNET_i2s (sender),
               GNUNET_i2s2 (receiver),
               GNUNET_h2s (key_material));
 #endif
-  GNUNET_CRYPTO_kdf (skey, sizeof (struct GNUNET_CRYPTO_SymmetricSessionKey),
-                    ctx, sizeof (ctx),
-                    key_material, sizeof (struct GNUNET_HashCode),
-                    sender, sizeof (struct GNUNET_PeerIdentity),
-                    receiver, sizeof (struct GNUNET_PeerIdentity),
-                    NULL);
+  GNUNET_CRYPTO_kdf (skey,
+                     sizeof (struct GNUNET_CRYPTO_SymmetricSessionKey),
+                     ctx,
+                     sizeof (ctx),
+                     key_material,
+                     sizeof (struct GNUNET_HashCode),
+                     sender,
+                     sizeof (struct GNUNET_PeerIdentity),
+                     receiver,
+                     sizeof (struct GNUNET_PeerIdentity),
+                     NULL);
 }
 
 
@@ -607,15 +614,14 @@ do_encrypt (struct GSC_KeyExchangeInfo *kx,
     GNUNET_break (0);
     return GNUNET_NO;
   }
-  GNUNET_assert (size ==
-                 GNUNET_CRYPTO_symmetric_encrypt (in,
-                                                 (uint16_t) size,
-                                                 &kx->encrypt_key,
-                                                 iv,
-                                                 out));
+  GNUNET_assert (size == GNUNET_CRYPTO_symmetric_encrypt (in,
+                                                          (uint16_t) size,
+                                                          &kx->encrypt_key,
+                                                          iv,
+                                                          out));
   GNUNET_STATISTICS_update (GSC_stats,
-                           gettext_noop ("# bytes encrypted"),
-                           size,
+                            gettext_noop ("# bytes encrypted"),
+                            size,
                             GNUNET_NO);
   /* the following is too sensitive to write to log files by accident,
      so we require manual intervention to get this one... */
@@ -625,8 +631,7 @@ do_encrypt (struct GSC_KeyExchangeInfo *kx,
               (unsigned int) size,
               GNUNET_i2s (kx->peer),
               (unsigned int) kx->encrypt_key.crc32,
-             GNUNET_CRYPTO_crc32_n (iv,
-                                    sizeof (iv)));
+              GNUNET_CRYPTO_crc32_n (iv, sizeof (iv)));
 #endif
   return GNUNET_OK;
 }
@@ -656,19 +661,18 @@ do_decrypt (struct GSC_KeyExchangeInfo *kx,
     GNUNET_break (0);
     return GNUNET_NO;
   }
-  if ( (kx->status != GNUNET_CORE_KX_STATE_KEY_RECEIVED) &&
-       (kx->status != GNUNET_CORE_KX_STATE_UP) &&
-       (kx->status != GNUNET_CORE_KX_STATE_REKEY_SENT) )
+  if ((kx->status != GNUNET_CORE_KX_STATE_KEY_RECEIVED) &&
+      (kx->status != GNUNET_CORE_KX_STATE_UP) &&
+      (kx->status != GNUNET_CORE_KX_STATE_REKEY_SENT))
   {
     GNUNET_break_op (0);
     return GNUNET_SYSERR;
   }
-  if (size !=
-      GNUNET_CRYPTO_symmetric_decrypt (in,
-                                       (uint16_t) size,
-                                       &kx->decrypt_key,
-                                       iv,
-                                       out))
+  if (size != GNUNET_CRYPTO_symmetric_decrypt (in,
+                                               (uint16_t) size,
+                                               &kx->decrypt_key,
+                                               iv,
+                                               out))
   {
     GNUNET_break (0);
     return GNUNET_SYSERR;
@@ -685,9 +689,7 @@ do_decrypt (struct GSC_KeyExchangeInfo *kx,
               (unsigned int) size,
               GNUNET_i2s (kx->peer),
               (unsigned int) kx->decrypt_key.crc32,
-              GNUNET_CRYPTO_crc32_n (iv,
-                                     sizeof
-                                     (*iv)));
+              GNUNET_CRYPTO_crc32_n (iv, sizeof (*iv)));
 #endif
   return GNUNET_OK;
 }
@@ -713,7 +715,8 @@ set_key_retry_task (void *cls)
   struct GSC_KeyExchangeInfo *kx = cls;
 
   kx->retry_set_key_task = NULL;
-  kx->set_key_retry_frequency = GNUNET_TIME_STD_BACKOFF 
(kx->set_key_retry_frequency);
+  kx->set_key_retry_frequency =
+    GNUNET_TIME_STD_BACKOFF (kx->set_key_retry_frequency);
   GNUNET_assert (GNUNET_CORE_KX_STATE_DOWN != kx->status);
   send_key (kx);
 }
@@ -732,23 +735,20 @@ setup_fresh_ping (struct GSC_KeyExchangeInfo *kx)
   struct GNUNET_CRYPTO_SymmetricInitializationVector iv;
 
   pm = &kx->ping;
-  kx->ping_challenge = GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK,
-                                                 UINT32_MAX);
+  kx->ping_challenge =
+    GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK, UINT32_MAX);
   pm->header.size = htons (sizeof (struct PingMessage));
   pm->header.type = htons (GNUNET_MESSAGE_TYPE_CORE_PING);
   pm->iv_seed = calculate_seed (kx);
-  derive_iv (&iv,
-            &kx->encrypt_key,
-            pm->iv_seed,
-            kx->peer);
+  derive_iv (&iv, &kx->encrypt_key, pm->iv_seed, kx->peer);
   pp.challenge = kx->ping_challenge;
   pp.target = *kx->peer;
   do_encrypt (kx,
-             &iv,
-             &pp.target,
-             &pm->target,
-              sizeof (struct PingMessage) - ((void *) &pm->target -
-                                             (void *) pm));
+              &iv,
+              &pp.target,
+              &pm->target,
+              sizeof (struct PingMessage) -
+                ((void *) &pm->target - (void *) pm));
 }
 
 
@@ -764,8 +764,7 @@ setup_fresh_ping (struct GSC_KeyExchangeInfo *kx)
  *    #GNUNET_SYSERR to stop further processing with error
  */
 static int
-deliver_message (void *cls,
-                 const struct GNUNET_MessageHeader *m)
+deliver_message (void *cls, const struct GNUNET_MessageHeader *m)
 {
   struct GSC_KeyExchangeInfo *kx = cls;
 
@@ -816,38 +815,32 @@ deliver_message (void *cls,
 static void *
 handle_transport_notify_connect (void *cls,
                                  const struct GNUNET_PeerIdentity *pid,
-                                struct GNUNET_MQ_Handle *mq)
+                                 struct GNUNET_MQ_Handle *mq)
 {
   struct GSC_KeyExchangeInfo *kx;
   struct GNUNET_HashCode h1;
   struct GNUNET_HashCode h2;
 
   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-             "Initiating key exchange with `%s'\n",
+              "Initiating key exchange with `%s'\n",
               GNUNET_i2s (pid));
   GNUNET_STATISTICS_update (GSC_stats,
                             gettext_noop ("# key exchanges initiated"),
                             1,
                             GNUNET_NO);
   kx = GNUNET_new (struct GSC_KeyExchangeInfo);
-  kx->mst = GNUNET_MST_create (&deliver_message,
-                               kx);
+  kx->mst = GNUNET_MST_create (&deliver_message, kx);
   kx->mq = mq;
   kx->peer = pid;
   kx->set_key_retry_frequency = INITIAL_SET_KEY_RETRY_FREQUENCY;
-  GNUNET_CONTAINER_DLL_insert (kx_head,
-                              kx_tail,
-                              kx);
+  GNUNET_CONTAINER_DLL_insert (kx_head, kx_tail, kx);
   kx->status = GNUNET_CORE_KX_STATE_KEY_SENT;
   monitor_notify_all (kx);
-  GNUNET_CRYPTO_hash (pid,
-                      sizeof (struct GNUNET_PeerIdentity),
-                      &h1);
+  GNUNET_CRYPTO_hash (pid, sizeof (struct GNUNET_PeerIdentity), &h1);
   GNUNET_CRYPTO_hash (&GSC_my_identity,
                       sizeof (struct GNUNET_PeerIdentity),
                       &h2);
-  if (0 < GNUNET_CRYPTO_hash_cmp (&h1,
-                                 &h2))
+  if (0 < GNUNET_CRYPTO_hash_cmp (&h1, &h2))
   {
     /* peer with "lower" identity starts KX, otherwise we typically end up
        with both peers starting the exchange and transmit the 'set key'
@@ -858,10 +851,10 @@ handle_transport_notify_connect (void *cls,
   {
     /* peer with "higher" identity starts a delayed KX, if the "lower" peer
      * does not start a KX since it sees no reasons to do so  */
-    kx->retry_set_key_task
-      = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_SECONDS,
-                                     &set_key_retry_task,
-                                     kx);
+    kx->retry_set_key_task =
+      GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_SECONDS,
+                                    &set_key_retry_task,
+                                    kx);
   }
   return kx;
 }
@@ -879,7 +872,7 @@ handle_transport_notify_connect (void *cls,
 static void
 handle_transport_notify_disconnect (void *cls,
                                     const struct GNUNET_PeerIdentity *peer,
-                                   void *handler_cls)
+                                    void *handler_cls)
 {
   struct GSC_KeyExchangeInfo *kx = handler_cls;
 
@@ -888,9 +881,9 @@ handle_transport_notify_disconnect (void *cls,
               GNUNET_i2s (peer));
   GSC_SESSIONS_end (kx->peer);
   GNUNET_STATISTICS_update (GSC_stats,
-                           gettext_noop ("# key exchanges stopped"),
+                            gettext_noop ("# key exchanges stopped"),
                             1,
-                           GNUNET_NO);
+                            GNUNET_NO);
   if (NULL != kx->retry_set_key_task)
   {
     GNUNET_SCHEDULER_cancel (kx->retry_set_key_task);
@@ -903,9 +896,7 @@ handle_transport_notify_disconnect (void *cls,
   }
   kx->status = GNUNET_CORE_KX_PEER_DISCONNECT;
   monitor_notify_all (kx);
-  GNUNET_CONTAINER_DLL_remove (kx_head,
-                              kx_tail,
-                              kx);
+  GNUNET_CONTAINER_DLL_remove (kx_head, kx_tail, kx);
   GNUNET_MST_destroy (kx->mst);
   GNUNET_free (kx);
 }
@@ -926,8 +917,7 @@ send_ping (struct GSC_KeyExchangeInfo *kx)
                             1,
                             GNUNET_NO);
   env = GNUNET_MQ_msg_copy (&kx->ping.header);
-  GNUNET_MQ_send (kx->mq,
-                 env);
+  GNUNET_MQ_send (kx->mq, env);
 }
 
 
@@ -941,22 +931,15 @@ derive_session_keys (struct GSC_KeyExchangeInfo *kx)
 {
   struct GNUNET_HashCode key_material;
 
-  if (GNUNET_OK !=
-      GNUNET_CRYPTO_ecc_ecdh (my_ephemeral_key,
-                             &kx->other_ephemeral_key,
-                             &key_material))
+  if (GNUNET_OK != GNUNET_CRYPTO_ecc_ecdh (my_ephemeral_key,
+                                           &kx->other_ephemeral_key,
+                                           &key_material))
   {
     GNUNET_break (0);
     return;
   }
-  derive_aes_key (&GSC_my_identity,
-                 kx->peer,
-                 &key_material,
-                 &kx->encrypt_key);
-  derive_aes_key (kx->peer,
-                 &GSC_my_identity,
-                 &key_material,
-                 &kx->decrypt_key);
+  derive_aes_key (&GSC_my_identity, kx->peer, &key_material, &kx->encrypt_key);
+  derive_aes_key (kx->peer, &GSC_my_identity, &key_material, &kx->decrypt_key);
   memset (&key_material, 0, sizeof (key_material));
   /* fresh key, reset sequence numbers */
   kx->last_sequence_number_received = 0;
@@ -973,8 +956,7 @@ derive_session_keys (struct GSC_KeyExchangeInfo *kx)
  * @param m the set key message we received
  */
 static void
-handle_ephemeral_key (void *cls,
-                     const struct EphemeralKeyMessage *m)
+handle_ephemeral_key (void *cls, const struct EphemeralKeyMessage *m)
 {
   struct GSC_KeyExchangeInfo *kx = cls;
   struct GNUNET_TIME_Absolute start_t;
@@ -983,14 +965,14 @@ handle_ephemeral_key (void *cls,
   enum GNUNET_CORE_KxState sender_status;
 
   end_t = GNUNET_TIME_absolute_ntoh (m->expiration_time);
-  if ( ( (GNUNET_CORE_KX_STATE_KEY_RECEIVED == kx->status) ||
-        (GNUNET_CORE_KX_STATE_UP == kx->status) ||
-        (GNUNET_CORE_KX_STATE_REKEY_SENT == kx->status) ) &&
-       (end_t.abs_value_us < kx->foreign_key_expires.abs_value_us) )
+  if (((GNUNET_CORE_KX_STATE_KEY_RECEIVED == kx->status) ||
+       (GNUNET_CORE_KX_STATE_UP == kx->status) ||
+       (GNUNET_CORE_KX_STATE_REKEY_SENT == kx->status)) &&
+      (end_t.abs_value_us < kx->foreign_key_expires.abs_value_us))
   {
     GNUNET_STATISTICS_update (GSC_stats,
                               gettext_noop ("# old ephemeral keys ignored"),
-                             1,
+                              1,
                               GNUNET_NO);
     GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
                 "Received expired EPHEMERAL_KEY from %s\n",
@@ -1002,18 +984,18 @@ handle_ephemeral_key (void *cls,
                    sizeof (m->ephemeral_key)))
   {
     GNUNET_STATISTICS_update (GSC_stats,
-                              gettext_noop ("# duplicate ephemeral keys 
ignored"),
-                             1,
+                              gettext_noop (
+                                "# duplicate ephemeral keys ignored"),
+                              1,
                               GNUNET_NO);
     GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
                 "Ignoring duplicate EPHEMERAL_KEY from %s\n",
                 GNUNET_i2s (&m->origin_identity));
     return;
   }
-  if (0 !=
-      memcmp (&m->origin_identity,
-             kx->peer,
-              sizeof (struct GNUNET_PeerIdentity)))
+  if (0 != memcmp (&m->origin_identity,
+                   kx->peer,
+                   sizeof (struct GNUNET_PeerIdentity)))
   {
     GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
                 "Received EPHEMERAL_KEY from %s, but expected %s\n",
@@ -1024,10 +1006,10 @@ handle_ephemeral_key (void *cls,
   }
   if ((ntohl (m->purpose.size) !=
        sizeof (struct GNUNET_CRYPTO_EccSignaturePurpose) +
-       sizeof (struct GNUNET_TIME_AbsoluteNBO) +
-       sizeof (struct GNUNET_TIME_AbsoluteNBO) +
-       sizeof (struct GNUNET_CRYPTO_EddsaPublicKey) +
-       sizeof (struct GNUNET_CRYPTO_EddsaPublicKey)) ||
+         sizeof (struct GNUNET_TIME_AbsoluteNBO) +
+         sizeof (struct GNUNET_TIME_AbsoluteNBO) +
+         sizeof (struct GNUNET_CRYPTO_EddsaPublicKey) +
+         sizeof (struct GNUNET_CRYPTO_EddsaPublicKey)) ||
       (GNUNET_OK !=
        GNUNET_CRYPTO_eddsa_verify (GNUNET_SIGNATURE_PURPOSE_SET_ECC_KEY,
                                    &m->purpose,
@@ -1037,7 +1019,8 @@ handle_ephemeral_key (void *cls,
     /* invalid signature */
     GNUNET_break_op (0);
     GNUNET_STATISTICS_update (GSC_stats,
-                              gettext_noop ("# EPHEMERAL_KEYs rejected (bad 
signature)"),
+                              gettext_noop (
+                                "# EPHEMERAL_KEYs rejected (bad signature)"),
                               1,
                               GNUNET_NO);
     GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
@@ -1047,17 +1030,22 @@ handle_ephemeral_key (void *cls,
   }
   now = GNUNET_TIME_absolute_get ();
   start_t = GNUNET_TIME_absolute_ntoh (m->creation_time);
-  if ( (end_t.abs_value_us < GNUNET_TIME_absolute_subtract (now, 
REKEY_TOLERANCE).abs_value_us) ||
-       (start_t.abs_value_us > GNUNET_TIME_absolute_add (now, 
REKEY_TOLERANCE).abs_value_us) )
+  if ((end_t.abs_value_us <
+       GNUNET_TIME_absolute_subtract (now, REKEY_TOLERANCE).abs_value_us) ||
+      (start_t.abs_value_us >
+       GNUNET_TIME_absolute_add (now, REKEY_TOLERANCE).abs_value_us))
   {
-    GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
-               _("EPHEMERAL_KEY from peer `%s' rejected as its validity range 
does not match our system time (%llu not in [%llu,%llu]).\n"),
-               GNUNET_i2s (kx->peer),
-               (unsigned long long) now.abs_value_us,
-                (unsigned long long) start_t.abs_value_us,
-                (unsigned long long) end_t.abs_value_us);
+    GNUNET_log (
+      GNUNET_ERROR_TYPE_WARNING,
+      _ (
+        "EPHEMERAL_KEY from peer `%s' rejected as its validity range does not 
match our system time (%llu not in [%llu,%llu]).\n"),
+      GNUNET_i2s (kx->peer),
+      (unsigned long long) now.abs_value_us,
+      (unsigned long long) start_t.abs_value_us,
+      (unsigned long long) end_t.abs_value_us);
     GNUNET_STATISTICS_update (GSC_stats,
-                              gettext_noop ("# EPHEMERAL_KEY messages rejected 
due to time"),
+                              gettext_noop (
+                                "# EPHEMERAL_KEY messages rejected due to 
time"),
                               1,
                               GNUNET_NO);
     return;
@@ -1066,9 +1054,7 @@ handle_ephemeral_key (void *cls,
   {
     struct GNUNET_HashCode eh;
 
-    GNUNET_CRYPTO_hash (&m->ephemeral_key,
-                        sizeof (m->ephemeral_key),
-                        &eh);
+    GNUNET_CRYPTO_hash (&m->ephemeral_key, sizeof (m->ephemeral_key), &eh);
     GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
                 "Received valid EPHEMERAL_KEY `%s' from `%s' in state %d.\n",
                 GNUNET_h2s (&eh),
@@ -1166,8 +1152,7 @@ handle_ephemeral_key (void *cls,
  * @param m the encrypted PING message itself
  */
 static void
-handle_ping (void *cls,
-            const struct PingMessage *m)
+handle_ping (void *cls, const struct PingMessage *m)
 {
   struct GSC_KeyExchangeInfo *kx = cls;
   struct PingMessage t;
@@ -1180,39 +1165,34 @@ handle_ping (void *cls,
                             gettext_noop ("# PING messages received"),
                             1,
                             GNUNET_NO);
-  if ( (kx->status != GNUNET_CORE_KX_STATE_KEY_RECEIVED) &&
-       (kx->status != GNUNET_CORE_KX_STATE_UP) &&
-       (kx->status != GNUNET_CORE_KX_STATE_REKEY_SENT))
+  if ((kx->status != GNUNET_CORE_KX_STATE_KEY_RECEIVED) &&
+      (kx->status != GNUNET_CORE_KX_STATE_UP) &&
+      (kx->status != GNUNET_CORE_KX_STATE_REKEY_SENT))
   {
     /* ignore */
     GNUNET_STATISTICS_update (GSC_stats,
-                             gettext_noop ("# PING messages dropped (out of 
order)"),
+                              gettext_noop (
+                                "# PING messages dropped (out of order)"),
                               1,
-                             GNUNET_NO);
+                              GNUNET_NO);
     return;
   }
   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
               "Core service receives PING request from `%s'.\n",
               GNUNET_i2s (kx->peer));
-  derive_iv (&iv,
-            &kx->decrypt_key,
-            m->iv_seed,
-            &GSC_my_identity);
-  if (GNUNET_OK !=
-      do_decrypt (kx,
-                 &iv,
-                 &m->target,
-                 &t.target,
-                  sizeof (struct PingMessage) - ((void *) &m->target -
-                                                 (void *) m)))
+  derive_iv (&iv, &kx->decrypt_key, m->iv_seed, &GSC_my_identity);
+  if (GNUNET_OK != do_decrypt (kx,
+                               &iv,
+                               &m->target,
+                               &t.target,
+                               sizeof (struct PingMessage) -
+                                 ((void *) &m->target - (void *) m)))
   {
     GNUNET_break_op (0);
     return;
   }
   if (0 !=
-      memcmp (&t.target,
-              &GSC_my_identity,
-              sizeof (struct GNUNET_PeerIdentity)))
+      memcmp (&t.target, &GSC_my_identity, sizeof (struct 
GNUNET_PeerIdentity)))
   {
     if (GNUNET_CORE_KX_STATE_REKEY_SENT != kx->status)
       GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
@@ -1220,9 +1200,10 @@ handle_ping (void *cls,
                   GNUNET_i2s (kx->peer),
                   GNUNET_i2s2 (&t.target));
     else
-      GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-                  "Decryption of PING from peer `%s' failed after rekey 
(harmless)\n",
-                  GNUNET_i2s (kx->peer));
+      GNUNET_log (
+        GNUNET_ERROR_TYPE_DEBUG,
+        "Decryption of PING from peer `%s' failed after rekey (harmless)\n",
+        GNUNET_i2s (kx->peer));
     GNUNET_break_op (0);
     return;
   }
@@ -1230,26 +1211,20 @@ handle_ping (void *cls,
   tx.reserved = 0;
   tx.challenge = t.challenge;
   tx.target = t.target;
-  env = GNUNET_MQ_msg (tp,
-                      GNUNET_MESSAGE_TYPE_CORE_PONG);
+  env = GNUNET_MQ_msg (tp, GNUNET_MESSAGE_TYPE_CORE_PONG);
   tp->iv_seed = calculate_seed (kx);
-  derive_pong_iv (&iv,
-                  &kx->encrypt_key,
-                  tp->iv_seed,
-                  t.challenge,
-                  kx->peer);
+  derive_pong_iv (&iv, &kx->encrypt_key, tp->iv_seed, t.challenge, kx->peer);
   do_encrypt (kx,
               &iv,
               &tx.challenge,
               &tp->challenge,
-              sizeof (struct PongMessage) - ((void *) &tp->challenge -
-                                             (void *) tp));
+              sizeof (struct PongMessage) -
+                ((void *) &tp->challenge - (void *) tp));
   GNUNET_STATISTICS_update (GSC_stats,
                             gettext_noop ("# PONG messages created"),
                             1,
                             GNUNET_NO);
-  GNUNET_MQ_send (kx->mq,
-                 env);
+  GNUNET_MQ_send (kx->mq, env);
 }
 
 
@@ -1289,13 +1264,10 @@ send_keep_alive (void *cls)
                             GNUNET_NO);
   setup_fresh_ping (kx);
   send_ping (kx);
-  retry =
-      GNUNET_TIME_relative_max (GNUNET_TIME_relative_divide (left, 2),
-                                MIN_PING_FREQUENCY);
+  retry = GNUNET_TIME_relative_max (GNUNET_TIME_relative_divide (left, 2),
+                                    MIN_PING_FREQUENCY);
   kx->keep_alive_task =
-      GNUNET_SCHEDULER_add_delayed (retry,
-                                    &send_keep_alive,
-                                    kx);
+    GNUNET_SCHEDULER_add_delayed (retry, &send_keep_alive, kx);
 }
 
 
@@ -1312,10 +1284,9 @@ update_timeout (struct GSC_KeyExchangeInfo *kx)
   struct GNUNET_TIME_Relative delta;
 
   kx->timeout =
-      GNUNET_TIME_relative_to_absolute
-      (GNUNET_CONSTANTS_IDLE_CONNECTION_TIMEOUT);
-  delta = GNUNET_TIME_absolute_get_difference (kx->last_notify_timeout,
-                                               kx->timeout);
+    GNUNET_TIME_relative_to_absolute 
(GNUNET_CONSTANTS_IDLE_CONNECTION_TIMEOUT);
+  delta =
+    GNUNET_TIME_absolute_get_difference (kx->last_notify_timeout, kx->timeout);
   if (delta.rel_value_us > 5LL * 1000LL * 1000LL)
   {
     /* we only notify monitors about timeout changes if those
@@ -1324,12 +1295,10 @@ update_timeout (struct GSC_KeyExchangeInfo *kx)
   }
   if (NULL != kx->keep_alive_task)
     GNUNET_SCHEDULER_cancel (kx->keep_alive_task);
-  kx->keep_alive_task =
-      GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_divide
-                                    (GNUNET_CONSTANTS_IDLE_CONNECTION_TIMEOUT,
-                                     2),
-                                    &send_keep_alive,
-                                    kx);
+  kx->keep_alive_task = GNUNET_SCHEDULER_add_delayed (
+    GNUNET_TIME_relative_divide (GNUNET_CONSTANTS_IDLE_CONNECTION_TIMEOUT, 2),
+    &send_keep_alive,
+    kx);
 }
 
 
@@ -1340,8 +1309,7 @@ update_timeout (struct GSC_KeyExchangeInfo *kx)
  * @param m the encrypted PONG message itself
  */
 static void
-handle_pong (void *cls,
-            const struct PongMessage *m)
+handle_pong (void *cls, const struct PongMessage *m)
 {
   struct GSC_KeyExchangeInfo *kx = cls;
   struct PongMessage t;
@@ -1355,13 +1323,17 @@ handle_pong (void *cls,
   {
   case GNUNET_CORE_KX_STATE_DOWN:
     GNUNET_STATISTICS_update (GSC_stats,
-                             gettext_noop ("# PONG messages dropped 
(connection down)"), 1,
-                             GNUNET_NO);
+                              gettext_noop (
+                                "# PONG messages dropped (connection down)"),
+                              1,
+                              GNUNET_NO);
     return;
   case GNUNET_CORE_KX_STATE_KEY_SENT:
     GNUNET_STATISTICS_update (GSC_stats,
-                             gettext_noop ("# PONG messages dropped (out of 
order)"), 1,
-                             GNUNET_NO);
+                              gettext_noop (
+                                "# PONG messages dropped (out of order)"),
+                              1,
+                              GNUNET_NO);
     return;
   case GNUNET_CORE_KX_STATE_KEY_RECEIVED:
     break;
@@ -1383,13 +1355,12 @@ handle_pong (void *cls,
                   m->iv_seed,
                   kx->ping_challenge,
                   &GSC_my_identity);
-  if (GNUNET_OK !=
-      do_decrypt (kx,
-                  &iv,
-                  &m->challenge,
-                  &t.challenge,
-                  sizeof (struct PongMessage) - ((void *) &m->challenge -
-                                                 (void *) m)))
+  if (GNUNET_OK != do_decrypt (kx,
+                               &iv,
+                               &m->challenge,
+                               &t.challenge,
+                               sizeof (struct PongMessage) -
+                                 ((void *) &m->challenge - (void *) m)))
   {
     GNUNET_break_op (0);
     return;
@@ -1398,9 +1369,8 @@ handle_pong (void *cls,
                             gettext_noop ("# PONG messages decrypted"),
                             1,
                             GNUNET_NO);
-  if ((0 != memcmp (&t.target,
-                    kx->peer,
-                    sizeof (struct GNUNET_PeerIdentity))) ||
+  if ((0 !=
+       memcmp (&t.target, kx->peer, sizeof (struct GNUNET_PeerIdentity))) ||
       (kx->ping_challenge != t.challenge))
   {
     /* PONG malformed */
@@ -1426,14 +1396,15 @@ handle_pong (void *cls,
   switch (kx->status)
   {
   case GNUNET_CORE_KX_STATE_DOWN:
-    GNUNET_assert (0);           /* should be impossible */
+    GNUNET_assert (0); /* should be impossible */
     return;
   case GNUNET_CORE_KX_STATE_KEY_SENT:
-    GNUNET_assert (0);           /* should be impossible */
+    GNUNET_assert (0); /* should be impossible */
     return;
   case GNUNET_CORE_KX_STATE_KEY_RECEIVED:
     GNUNET_STATISTICS_update (GSC_stats,
-                              gettext_noop ("# session keys confirmed via 
PONG"),
+                              gettext_noop (
+                                "# session keys confirmed via PONG"),
                               1,
                               GNUNET_NO);
     kx->status = GNUNET_CORE_KX_STATE_UP;
@@ -1451,7 +1422,8 @@ handle_pong (void *cls,
     break;
   case GNUNET_CORE_KX_STATE_REKEY_SENT:
     GNUNET_STATISTICS_update (GSC_stats,
-                              gettext_noop ("# rekey operations confirmed via 
PONG"),
+                              gettext_noop (
+                                "# rekey operations confirmed via PONG"),
                               1,
                               GNUNET_NO);
     kx->status = GNUNET_CORE_KX_STATE_UP;
@@ -1478,8 +1450,8 @@ send_key (struct GSC_KeyExchangeInfo *kx)
   GNUNET_assert (GNUNET_CORE_KX_STATE_DOWN != kx->status);
   if (NULL != kx->retry_set_key_task)
   {
-     GNUNET_SCHEDULER_cancel (kx->retry_set_key_task);
-     kx->retry_set_key_task = NULL;
+    GNUNET_SCHEDULER_cancel (kx->retry_set_key_task);
+    kx->retry_set_key_task = NULL;
   }
   /* always update sender status in SET KEY message */
 #if DEBUG_KX
@@ -1498,14 +1470,13 @@ send_key (struct GSC_KeyExchangeInfo *kx)
 #endif
   current_ekm.sender_status = htonl ((int32_t) (kx->status));
   env = GNUNET_MQ_msg_copy (&current_ekm.header);
-  GNUNET_MQ_send (kx->mq,
-                 env);
+  GNUNET_MQ_send (kx->mq, env);
   if (GNUNET_CORE_KX_STATE_KEY_SENT != kx->status)
     send_ping (kx);
   kx->retry_set_key_task =
-      GNUNET_SCHEDULER_add_delayed (kx->set_key_retry_frequency,
-                                    &set_key_retry_task,
-                                    kx);
+    GNUNET_SCHEDULER_add_delayed (kx->set_key_retry_frequency,
+                                  &set_key_retry_task,
+                                  kx);
 }
 
 
@@ -1522,9 +1493,9 @@ GSC_KX_encrypt_and_transmit (struct GSC_KeyExchangeInfo 
*kx,
                              size_t payload_size)
 {
   size_t used = payload_size + sizeof (struct EncryptedMessage);
-  char pbuf[used];              /* plaintext */
-  struct EncryptedMessage *em;  /* encrypted message */
-  struct EncryptedMessage *ph;  /* plaintext header */
+  char pbuf[used]; /* plaintext */
+  struct EncryptedMessage *em; /* encrypted message */
+  struct EncryptedMessage *ph; /* plaintext header */
   struct GNUNET_MQ_Envelope *env;
   struct GNUNET_CRYPTO_SymmetricInitializationVector iv;
   struct GNUNET_CRYPTO_AuthKey auth_key;
@@ -1534,23 +1505,17 @@ GSC_KX_encrypt_and_transmit (struct GSC_KeyExchangeInfo 
*kx,
   ph->iv_seed = calculate_seed (kx);
   ph->reserved = 0;
   ph->timestamp = GNUNET_TIME_absolute_hton (GNUNET_TIME_absolute_get ());
-  GNUNET_memcpy (&ph[1],
-                payload,
-                payload_size);
+  GNUNET_memcpy (&ph[1], payload, payload_size);
   env = GNUNET_MQ_msg_extra (em,
-                            payload_size,
-                            GNUNET_MESSAGE_TYPE_CORE_ENCRYPTED_MESSAGE);
+                             payload_size,
+                             GNUNET_MESSAGE_TYPE_CORE_ENCRYPTED_MESSAGE);
   em->iv_seed = ph->iv_seed;
-  derive_iv (&iv,
-             &kx->encrypt_key,
-             ph->iv_seed,
-             kx->peer);
-  GNUNET_assert (GNUNET_OK ==
-                 do_encrypt (kx,
-                             &iv,
-                             &ph->sequence_number,
-                             &em->sequence_number,
-                             used - ENCRYPTED_HEADER_SIZE));
+  derive_iv (&iv, &kx->encrypt_key, ph->iv_seed, kx->peer);
+  GNUNET_assert (GNUNET_OK == do_encrypt (kx,
+                                          &iv,
+                                          &ph->sequence_number,
+                                          &em->sequence_number,
+                                          used - ENCRYPTED_HEADER_SIZE));
 #if DEBUG_KX
   {
     struct GNUNET_HashCode hc;
@@ -1565,9 +1530,7 @@ GSC_KX_encrypt_and_transmit (struct GSC_KeyExchangeInfo 
*kx,
                 GNUNET_i2s (kx->peer));
   }
 #endif
-  derive_auth_key (&auth_key,
-                  &kx->encrypt_key,
-                  ph->iv_seed);
+  derive_auth_key (&auth_key, &kx->encrypt_key, ph->iv_seed);
   GNUNET_CRYPTO_hmac (&auth_key,
                       &em->sequence_number,
                       used - ENCRYPTED_HEADER_SIZE,
@@ -1576,9 +1539,7 @@ GSC_KX_encrypt_and_transmit (struct GSC_KeyExchangeInfo 
*kx,
   {
     struct GNUNET_HashCode hc;
 
-    GNUNET_CRYPTO_hash (&auth_key,
-                        sizeof (auth_key),
-                        &hc);
+    GNUNET_CRYPTO_hash (&auth_key, sizeof (auth_key), &hc);
     GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
                 "For peer %s, used AC %s to create hmac %s\n",
                 GNUNET_i2s (kx->peer),
@@ -1587,8 +1548,7 @@ GSC_KX_encrypt_and_transmit (struct GSC_KeyExchangeInfo 
*kx,
   }
 #endif
   kx->has_excess_bandwidth = GNUNET_NO;
-  GNUNET_MQ_send (kx->mq,
-                 env);
+  GNUNET_MQ_send (kx->mq, env);
 }
 
 
@@ -1601,8 +1561,7 @@ GSC_KX_encrypt_and_transmit (struct GSC_KeyExchangeInfo 
*kx,
  * @return #GNUNET_OK if @a msg is well-formed (size-wise)
  */
 static int
-check_encrypted (void *cls,
-                const struct EncryptedMessage *m)
+check_encrypted (void *cls, const struct EncryptedMessage *m)
 {
   uint16_t size = ntohs (m->header.size) - sizeof (*m);
 
@@ -1623,11 +1582,10 @@ check_encrypted (void *cls,
  * @param m encrypted message
  */
 static void
-handle_encrypted (void *cls,
-                 const struct EncryptedMessage *m)
+handle_encrypted (void *cls, const struct EncryptedMessage *m)
 {
   struct GSC_KeyExchangeInfo *kx = cls;
-  struct EncryptedMessage *pt;  /* plaintext */
+  struct EncryptedMessage *pt; /* plaintext */
   struct GNUNET_HashCode ph;
   uint32_t snum;
   struct GNUNET_TIME_Absolute t;
@@ -1639,19 +1597,25 @@ handle_encrypted (void *cls,
   if (GNUNET_CORE_KX_STATE_UP != kx->status)
   {
     GNUNET_STATISTICS_update (GSC_stats,
-                              gettext_noop ("# DATA message dropped (out of 
order)"),
+                              gettext_noop (
+                                "# DATA message dropped (out of order)"),
                               1,
                               GNUNET_NO);
     return;
   }
-  if (0 == GNUNET_TIME_absolute_get_remaining 
(kx->foreign_key_expires).rel_value_us)
+  if (0 ==
+      GNUNET_TIME_absolute_get_remaining 
(kx->foreign_key_expires).rel_value_us)
   {
-    GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
-               _("Session to peer `%s' went down due to key expiration (should 
not happen)\n"),
-               GNUNET_i2s (kx->peer));
+    GNUNET_log (
+      GNUNET_ERROR_TYPE_WARNING,
+      _ (
+        "Session to peer `%s' went down due to key expiration (should not 
happen)\n"),
+      GNUNET_i2s (kx->peer));
     GNUNET_STATISTICS_update (GSC_stats,
-                              gettext_noop ("# sessions terminated by key 
expiration"),
-                              1, GNUNET_NO);
+                              gettext_noop (
+                                "# sessions terminated by key expiration"),
+                              1,
+                              GNUNET_NO);
     GSC_SESSIONS_end (kx->peer);
     if (NULL != kx->keep_alive_task)
     {
@@ -1669,9 +1633,7 @@ handle_encrypted (void *cls,
   {
     struct GNUNET_HashCode hc;
 
-    GNUNET_CRYPTO_hash (&m->sequence_number,
-                        size - ENCRYPTED_HEADER_SIZE,
-                        &hc);
+    GNUNET_CRYPTO_hash (&m->sequence_number, size - ENCRYPTED_HEADER_SIZE, 
&hc);
     GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
                 "Received encrypted payload `%s' of %u bytes from %s\n",
                 GNUNET_h2s (&hc),
@@ -1679,9 +1641,7 @@ handle_encrypted (void *cls,
                 GNUNET_i2s (kx->peer));
   }
 #endif
-  derive_auth_key (&auth_key,
-                   &kx->decrypt_key,
-                   m->iv_seed);
+  derive_auth_key (&auth_key, &kx->decrypt_key, m->iv_seed);
   GNUNET_CRYPTO_hmac (&auth_key,
                       &m->sequence_number,
                       size - ENCRYPTED_HEADER_SIZE,
@@ -1690,9 +1650,7 @@ handle_encrypted (void *cls,
   {
     struct GNUNET_HashCode hc;
 
-    GNUNET_CRYPTO_hash (&auth_key,
-                        sizeof (auth_key),
-                        &hc);
+    GNUNET_CRYPTO_hash (&auth_key, sizeof (auth_key), &hc);
     GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
                 "For peer %s, used AC %s to verify hmac %s\n",
                 GNUNET_i2s (kx->peer),
@@ -1700,27 +1658,21 @@ handle_encrypted (void *cls,
                 GNUNET_h2s2 (&m->hmac));
   }
 #endif
-  if (0 != memcmp (&ph,
-                   &m->hmac,
-                   sizeof (struct GNUNET_HashCode)))
+  if (0 != memcmp (&ph, &m->hmac, sizeof (struct GNUNET_HashCode)))
   {
     /* checksum failed */
     GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
-               "Failed checksum validation for a message from `%s'\n",
-               GNUNET_i2s (kx->peer));
+                "Failed checksum validation for a message from `%s'\n",
+                GNUNET_i2s (kx->peer));
     return;
   }
-  derive_iv (&iv,
-             &kx->decrypt_key,
-             m->iv_seed,
-             &GSC_my_identity);
+  derive_iv (&iv, &kx->decrypt_key, m->iv_seed, &GSC_my_identity);
   /* decrypt */
-  if (GNUNET_OK !=
-      do_decrypt (kx,
-                  &iv,
-                  &m->sequence_number,
-                  &buf[ENCRYPTED_HEADER_SIZE],
-                  size - ENCRYPTED_HEADER_SIZE))
+  if (GNUNET_OK != do_decrypt (kx,
+                               &iv,
+                               &m->sequence_number,
+                               &buf[ENCRYPTED_HEADER_SIZE],
+                               size - ENCRYPTED_HEADER_SIZE))
   {
     GNUNET_break_op (0);
     return;
@@ -1751,8 +1703,9 @@ handle_encrypted (void *cls,
                 "Received ancient out of sequence message, ignoring.\n");
     /* ancient out of sequence, ignore */
     GNUNET_STATISTICS_update (GSC_stats,
-                              gettext_noop
-                              ("# bytes dropped (out of sequence)"), size,
+                              gettext_noop (
+                                "# bytes dropped (out of sequence)"),
+                              size,
                               GNUNET_NO);
     return;
   }
@@ -1766,7 +1719,8 @@ handle_encrypted (void *cls,
                   "Received duplicate message, ignoring.\n");
       GNUNET_STATISTICS_update (GSC_stats,
                                 gettext_noop ("# bytes dropped (duplicates)"),
-                                size, GNUNET_NO);
+                                size,
+                                GNUNET_NO);
       /* duplicate, ignore */
       return;
     }
@@ -1790,11 +1744,13 @@ handle_encrypted (void *cls,
   {
     GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
                 "Message received far too old (%s). Content ignored.\n",
-                GNUNET_STRINGS_relative_time_to_string 
(GNUNET_TIME_absolute_get_duration (t),
-                                                        GNUNET_YES));
+                GNUNET_STRINGS_relative_time_to_string (
+                  GNUNET_TIME_absolute_get_duration (t),
+                  GNUNET_YES));
     GNUNET_STATISTICS_update (GSC_stats,
-                              gettext_noop
-                              ("# bytes dropped (ancient message)"), size,
+                              gettext_noop (
+                                "# bytes dropped (ancient message)"),
+                              size,
                               GNUNET_NO);
     return;
   }
@@ -1825,7 +1781,7 @@ handle_encrypted (void *cls,
 static void
 handle_transport_notify_excess_bw (void *cls,
                                    const struct GNUNET_PeerIdentity *pid,
-                                  void *connect_cls)
+                                   void *connect_cls)
 {
   struct GSC_KeyExchangeInfo *kx = connect_cls;
 
@@ -1848,31 +1804,34 @@ sign_ephemeral_key ()
   current_ekm.header.type = htons (GNUNET_MESSAGE_TYPE_CORE_EPHEMERAL_KEY);
   current_ekm.sender_status = 0; /* to be set later */
   current_ekm.purpose.purpose = htonl (GNUNET_SIGNATURE_PURPOSE_SET_ECC_KEY);
-  current_ekm.purpose.size = htonl (sizeof (struct 
GNUNET_CRYPTO_EccSignaturePurpose) +
-                                   sizeof (struct GNUNET_TIME_AbsoluteNBO) +
-                                   sizeof (struct GNUNET_TIME_AbsoluteNBO) +
-                                   sizeof (struct 
GNUNET_CRYPTO_EcdhePublicKey) +
-                                   sizeof (struct GNUNET_PeerIdentity));
-  current_ekm.creation_time = GNUNET_TIME_absolute_hton 
(GNUNET_TIME_absolute_get ());
-  if (GNUNET_YES ==
-      GNUNET_CONFIGURATION_get_value_yesno (GSC_cfg,
-                                           "core",
-                                           "USE_EPHEMERAL_KEYS"))
+  current_ekm.purpose.size =
+    htonl (sizeof (struct GNUNET_CRYPTO_EccSignaturePurpose) +
+           sizeof (struct GNUNET_TIME_AbsoluteNBO) +
+           sizeof (struct GNUNET_TIME_AbsoluteNBO) +
+           sizeof (struct GNUNET_CRYPTO_EcdhePublicKey) +
+           sizeof (struct GNUNET_PeerIdentity));
+  current_ekm.creation_time =
+    GNUNET_TIME_absolute_hton (GNUNET_TIME_absolute_get ());
+  if (GNUNET_YES == GNUNET_CONFIGURATION_get_value_yesno (GSC_cfg,
+                                                          "core",
+                                                          
"USE_EPHEMERAL_KEYS"))
   {
-    current_ekm.expiration_time = GNUNET_TIME_absolute_hton 
(GNUNET_TIME_relative_to_absolute (GNUNET_TIME_relative_add (REKEY_FREQUENCY,
-                                                                               
                                         REKEY_TOLERANCE)));
+    current_ekm.expiration_time =
+      GNUNET_TIME_absolute_hton (GNUNET_TIME_relative_to_absolute (
+        GNUNET_TIME_relative_add (REKEY_FREQUENCY, REKEY_TOLERANCE)));
   }
   else
   {
-    current_ekm.expiration_time = GNUNET_TIME_absolute_hton 
(GNUNET_TIME_UNIT_FOREVER_ABS);
+    current_ekm.expiration_time =
+      GNUNET_TIME_absolute_hton (GNUNET_TIME_UNIT_FOREVER_ABS);
   }
   GNUNET_CRYPTO_ecdhe_key_get_public (my_ephemeral_key,
                                       &current_ekm.ephemeral_key);
   current_ekm.origin_identity = GSC_my_identity;
   GNUNET_assert (GNUNET_OK ==
-                GNUNET_CRYPTO_eddsa_sign (my_private_key,
+                 GNUNET_CRYPTO_eddsa_sign (my_private_key,
                                            &current_ekm.purpose,
-                                          &current_ekm.signature));
+                                           &current_ekm.signature));
 }
 
 
@@ -1886,9 +1845,7 @@ do_rekey (void *cls)
 {
   struct GSC_KeyExchangeInfo *pos;
 
-  rekey_task = GNUNET_SCHEDULER_add_delayed (REKEY_FREQUENCY,
-                                            &do_rekey,
-                                            NULL);
+  rekey_task = GNUNET_SCHEDULER_add_delayed (REKEY_FREQUENCY, &do_rekey, NULL);
   if (NULL != my_ephemeral_key)
     GNUNET_free (my_ephemeral_key);
   my_ephemeral_key = GNUNET_CRYPTO_ecdhe_key_create ();
@@ -1900,9 +1857,7 @@ do_rekey (void *cls)
     GNUNET_CRYPTO_hash (&current_ekm.ephemeral_key,
                         sizeof (current_ekm.ephemeral_key),
                         &eh);
-    GNUNET_log (GNUNET_ERROR_TYPE_INFO,
-                "Rekeying to %s\n",
-                GNUNET_h2s (&eh));
+    GNUNET_log (GNUNET_ERROR_TYPE_INFO, "Rekeying to %s\n", GNUNET_h2s (&eh));
   }
   for (pos = kx_head; NULL != pos; pos = pos->next)
   {
@@ -1932,25 +1887,24 @@ do_rekey (void *cls)
 int
 GSC_KX_init (struct GNUNET_CRYPTO_EddsaPrivateKey *pk)
 {
-  struct GNUNET_MQ_MessageHandler handlers[] = {
-    GNUNET_MQ_hd_fixed_size (ephemeral_key,
-                             GNUNET_MESSAGE_TYPE_CORE_EPHEMERAL_KEY,
-                             struct EphemeralKeyMessage,
-                             NULL),
-    GNUNET_MQ_hd_fixed_size (ping,
-                             GNUNET_MESSAGE_TYPE_CORE_PING,
-                             struct PingMessage,
-                             NULL),
-    GNUNET_MQ_hd_fixed_size (pong,
-                             GNUNET_MESSAGE_TYPE_CORE_PONG,
-                             struct PongMessage,
-                             NULL),
-    GNUNET_MQ_hd_var_size (encrypted,
-                           GNUNET_MESSAGE_TYPE_CORE_ENCRYPTED_MESSAGE,
-                           struct EncryptedMessage,
-                           NULL),
-    GNUNET_MQ_handler_end()
-  };
+  struct GNUNET_MQ_MessageHandler handlers[] =
+    {GNUNET_MQ_hd_fixed_size (ephemeral_key,
+                              GNUNET_MESSAGE_TYPE_CORE_EPHEMERAL_KEY,
+                              struct EphemeralKeyMessage,
+                              NULL),
+     GNUNET_MQ_hd_fixed_size (ping,
+                              GNUNET_MESSAGE_TYPE_CORE_PING,
+                              struct PingMessage,
+                              NULL),
+     GNUNET_MQ_hd_fixed_size (pong,
+                              GNUNET_MESSAGE_TYPE_CORE_PONG,
+                              struct PongMessage,
+                              NULL),
+     GNUNET_MQ_hd_var_size (encrypted,
+                            GNUNET_MESSAGE_TYPE_CORE_ENCRYPTED_MESSAGE,
+                            struct EncryptedMessage,
+                            NULL),
+     GNUNET_MQ_handler_end ()};
 
   my_private_key = pk;
   GNUNET_CRYPTO_eddsa_key_get_public (my_private_key,
@@ -1976,17 +1930,15 @@ GSC_KX_init (struct GNUNET_CRYPTO_EddsaPrivateKey *pk)
   }
 
   nc = GNUNET_notification_context_create (1);
-  rekey_task = GNUNET_SCHEDULER_add_delayed (REKEY_FREQUENCY,
-                                             &do_rekey,
-                                             NULL);
-  transport
-    = GNUNET_TRANSPORT_core_connect (GSC_cfg,
-                                    &GSC_my_identity,
-                                    handlers,
-                                    NULL,
-                                    &handle_transport_notify_connect,
-                                    &handle_transport_notify_disconnect,
-                                    &handle_transport_notify_excess_bw);
+  rekey_task = GNUNET_SCHEDULER_add_delayed (REKEY_FREQUENCY, &do_rekey, NULL);
+  transport =
+    GNUNET_TRANSPORT_core_connect (GSC_cfg,
+                                   &GSC_my_identity,
+                                   handlers,
+                                   NULL,
+                                   &handle_transport_notify_connect,
+                                   &handle_transport_notify_disconnect,
+                                   &handle_transport_notify_excess_bw);
   if (NULL == transport)
   {
     GSC_KX_done ();
@@ -2030,7 +1982,7 @@ GSC_KX_done ()
 }
 
 
- /**
+/**
  * Check how many messages are queued for the given neighbour.
  *
  * @param kxinfo data about neighbour to check
@@ -2071,27 +2023,22 @@ GSC_KX_handle_client_monitor_peers (struct 
GNUNET_MQ_Handle *mq)
   struct MonitorNotifyMessage *done_msg;
   struct GSC_KeyExchangeInfo *kx;
 
-  GNUNET_notification_context_add (nc,
-                                  mq);
+  GNUNET_notification_context_add (nc, mq);
   for (kx = kx_head; NULL != kx; kx = kx->next)
   {
     struct GNUNET_MQ_Envelope *env;
     struct MonitorNotifyMessage *msg;
 
-    env = GNUNET_MQ_msg (msg,
-                        GNUNET_MESSAGE_TYPE_CORE_MONITOR_NOTIFY);
+    env = GNUNET_MQ_msg (msg, GNUNET_MESSAGE_TYPE_CORE_MONITOR_NOTIFY);
     msg->state = htonl ((uint32_t) kx->status);
     msg->peer = *kx->peer;
     msg->timeout = GNUNET_TIME_absolute_hton (kx->timeout);
-    GNUNET_MQ_send (mq,
-                   env);
+    GNUNET_MQ_send (mq, env);
   }
-  env = GNUNET_MQ_msg (done_msg,
-                      GNUNET_MESSAGE_TYPE_CORE_MONITOR_NOTIFY);
+  env = GNUNET_MQ_msg (done_msg, GNUNET_MESSAGE_TYPE_CORE_MONITOR_NOTIFY);
   done_msg->state = htonl ((uint32_t) GNUNET_CORE_KX_ITERATION_FINISHED);
   done_msg->timeout = GNUNET_TIME_absolute_hton (GNUNET_TIME_UNIT_FOREVER_ABS);
-  GNUNET_MQ_send (mq,
-                 env);
+  GNUNET_MQ_send (mq, env);
 }
 
 
diff --git a/src/hostlist/test_gnunet_daemon_hostlist.c 
b/src/hostlist/test_gnunet_daemon_hostlist.c
index 1bcf4e86a..557b91d1c 100644
--- a/src/hostlist/test_gnunet_daemon_hostlist.c
+++ b/src/hostlist/test_gnunet_daemon_hostlist.c
@@ -11,7 +11,7 @@
      WITHOUT ANY WARRANTY; without even the implied warranty of
      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      Affero General Public License for more details.
-    
+
      You should have received a copy of the GNU Affero General Public License
      along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
@@ -26,7 +26,6 @@
 #include "gnunet_util_lib.h"
 #include "gnunet_arm_service.h"
 #include "gnunet_transport_service.h"
-#include "gnunet_transport_core_service.h"
 #include "gnunet_transport_hello_service.h"
 
 
@@ -103,26 +102,23 @@ timeout_error (void *cls)
  */
 static void *
 notify_connect (void *cls,
-               const struct GNUNET_PeerIdentity *peer,
-               struct GNUNET_MQ_Handle *mq)
+                const struct GNUNET_PeerIdentity *peer,
+                struct GNUNET_MQ_Handle *mq)
 {
-  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-             "Peers connected, shutting down.\n");
+  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Peers connected, shutting down.\n");
   ok = 0;
   if (NULL != timeout_task)
   {
     GNUNET_SCHEDULER_cancel (timeout_task);
     timeout_task = NULL;
   }
-  GNUNET_SCHEDULER_add_now (&clean_up,
-                           NULL);
+  GNUNET_SCHEDULER_add_now (&clean_up, NULL);
   return NULL;
 }
 
 
 static void
-process_hello (void *cls,
-              const struct GNUNET_MessageHeader *message)
+process_hello (void *cls, const struct GNUNET_MessageHeader *message)
 {
   struct PeerContext *p = cls;
 
@@ -134,39 +130,35 @@ process_hello (void *cls,
 
 
 static void
-setup_peer (struct PeerContext *p,
-           const char *cfgname)
+setup_peer (struct PeerContext *p, const char *cfgname)
 {
   char *binary;
 
   binary = GNUNET_OS_get_libexec_binary_path ("gnunet-service-arm");
   p->cfg = GNUNET_CONFIGURATION_create ();
-  p->arm_proc =
-    GNUNET_OS_start_process (GNUNET_YES,
-                            GNUNET_OS_INHERIT_STD_OUT_AND_ERR,
-                             NULL,
-                            NULL,
-                            NULL,
-                             binary,
-                             "gnunet-service-arm",
-                             "-c",
-                            cfgname,
-                            NULL);
-  GNUNET_assert (GNUNET_OK ==
-                GNUNET_CONFIGURATION_load (p->cfg,
-                                           cfgname));
+  p->arm_proc = GNUNET_OS_start_process (GNUNET_YES,
+                                         GNUNET_OS_INHERIT_STD_OUT_AND_ERR,
+                                         NULL,
+                                         NULL,
+                                         NULL,
+                                         binary,
+                                         "gnunet-service-arm",
+                                         "-c",
+                                         cfgname,
+                                         NULL);
+  GNUNET_assert (GNUNET_OK == GNUNET_CONFIGURATION_load (p->cfg, cfgname));
   p->th = GNUNET_TRANSPORT_core_connect (p->cfg,
-                                        NULL,
-                                        NULL,
-                                        p,
-                                        &notify_connect,
-                                        NULL,
-                                        NULL);
+                                         NULL,
+                                         NULL,
+                                         p,
+                                         &notify_connect,
+                                         NULL,
+                                         NULL);
   GNUNET_assert (NULL != p->th);
   p->ghh = GNUNET_TRANSPORT_hello_get (p->cfg,
-                                      GNUNET_TRANSPORT_AC_ANY,
-                                      &process_hello,
-                                      p);
+                                       GNUNET_TRANSPORT_AC_ANY,
+                                       &process_hello,
+                                       p);
   GNUNET_free (binary);
 }
 
@@ -176,18 +168,13 @@ waitpid_task (void *cls)
 {
   struct PeerContext *p = cls;
 
+  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Killing ARM process.\n");
+  if (0 != GNUNET_OS_process_kill (p->arm_proc, GNUNET_TERM_SIG))
+    GNUNET_log_strerror (GNUNET_ERROR_TYPE_WARNING, "kill");
+  if (GNUNET_OK != GNUNET_OS_process_wait (p->arm_proc))
+    GNUNET_log_strerror (GNUNET_ERROR_TYPE_WARNING, "waitpid");
   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-             "Killing ARM process.\n");
-  if (0 != GNUNET_OS_process_kill (p->arm_proc,
-                                  GNUNET_TERM_SIG))
-    GNUNET_log_strerror (GNUNET_ERROR_TYPE_WARNING,
-                        "kill");
-  if (GNUNET_OK !=
-      GNUNET_OS_process_wait (p->arm_proc))
-    GNUNET_log_strerror (GNUNET_ERROR_TYPE_WARNING,
-                        "waitpid");
-  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-             "ARM process %u stopped\n",
+              "ARM process %u stopped\n",
               GNUNET_OS_process_get_pid (p->arm_proc));
   GNUNET_OS_process_destroy (p->arm_proc);
   p->arm_proc = NULL;
@@ -198,11 +185,8 @@ waitpid_task (void *cls)
 static void
 stop_arm (struct PeerContext *p)
 {
-  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-             "Asking ARM to stop core service\n");
-  GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_SECONDS,
-                               &waitpid_task,
-                               p);
+  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Asking ARM to stop core service\n");
+  GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_SECONDS, &waitpid_task, p);
 }
 
 
@@ -225,36 +209,28 @@ run (void *cls,
 {
   GNUNET_assert (ok == 1);
   ok++;
-  timeout_task = GNUNET_SCHEDULER_add_delayed (TIMEOUT,
-                                              &timeout_error,
-                                              NULL);
-  GNUNET_SCHEDULER_add_shutdown (&shutdown_task,
-                                NULL);
-  setup_peer (&p1,
-             "test_gnunet_daemon_hostlist_peer1.conf");
-  setup_peer (&p2,
-             "test_gnunet_daemon_hostlist_peer2.conf");
+  timeout_task = GNUNET_SCHEDULER_add_delayed (TIMEOUT, &timeout_error, NULL);
+  GNUNET_SCHEDULER_add_shutdown (&shutdown_task, NULL);
+  setup_peer (&p1, "test_gnunet_daemon_hostlist_peer1.conf");
+  setup_peer (&p2, "test_gnunet_daemon_hostlist_peer2.conf");
 }
 
 
 static int
 check ()
 {
-  char *const argv[] = {
-    "test-gnunet-daemon-hostlist",
-    "-c", "test_gnunet_daemon_hostlist_data.conf",
-    NULL
-  };
-  struct GNUNET_GETOPT_CommandLineOption options[] = {
-    GNUNET_GETOPT_OPTION_END
-  };
+  char *const argv[] = {"test-gnunet-daemon-hostlist",
+                        "-c",
+                        "test_gnunet_daemon_hostlist_data.conf",
+                        NULL};
+  struct GNUNET_GETOPT_CommandLineOption options[] = 
{GNUNET_GETOPT_OPTION_END};
   ok = 1;
   GNUNET_PROGRAM_run ((sizeof (argv) / sizeof (char *)) - 1,
-                     argv,
+                      argv,
                       "test-gnunet-daemon-hostlist",
-                     "nohelp",
-                     options,
-                     &run,
+                      "nohelp",
+                      options,
+                      &run,
                       &ok);
   return ok;
 }
@@ -271,9 +247,7 @@ main (int argc, char *argv[])
                              "GNUNET_TEST_HOME");
   GNUNET_DISK_purge_cfg_dir ("test_gnunet_daemon_hostlist_data.conf",
                              "GNUNET_TEST_HOME");
-  GNUNET_log_setup ("test-gnunet-daemon-hostlist",
-                    "WARNING",
-                    NULL);
+  GNUNET_log_setup ("test-gnunet-daemon-hostlist", "WARNING", NULL);
   ret = check ();
   GNUNET_DISK_purge_cfg_dir ("test_gnunet_daemon_hostlist_peer1.conf",
                              "GNUNET_TEST_HOME");
diff --git a/src/hostlist/test_gnunet_daemon_hostlist_reconnect.c 
b/src/hostlist/test_gnunet_daemon_hostlist_reconnect.c
index 5dc116ccd..28b2db0de 100644
--- a/src/hostlist/test_gnunet_daemon_hostlist_reconnect.c
+++ b/src/hostlist/test_gnunet_daemon_hostlist_reconnect.c
@@ -11,7 +11,7 @@
      WITHOUT ANY WARRANTY; without even the implied warranty of
      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      Affero General Public License for more details.
-    
+
      You should have received a copy of the GNU Affero General Public License
      along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
@@ -26,7 +26,7 @@
 #include "platform.h"
 #include "gnunet_util_lib.h"
 #include "gnunet_arm_service.h"
-#include "gnunet_transport_core_service.h"
+#include "gnunet_transport_service.h"
 #include "gnunet_transport_hello_service.h"
 
 /**
@@ -76,11 +76,10 @@ timeout_error (void *cls)
  */
 static void *
 notify_connect (void *cls,
-               const struct GNUNET_PeerIdentity *peer,
-               struct GNUNET_MQ_Handle *mq)
+                const struct GNUNET_PeerIdentity *peer,
+                struct GNUNET_MQ_Handle *mq)
 {
-  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-             "Peers connected, shutting down.\n");
+  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Peers connected, shutting down.\n");
   ok = 0;
   GNUNET_SCHEDULER_shutdown ();
   return NULL;
@@ -88,8 +87,7 @@ notify_connect (void *cls,
 
 
 static void
-process_hello (void *cls,
-              const struct GNUNET_MessageHeader *message)
+process_hello (void *cls, const struct GNUNET_MessageHeader *message)
 {
   struct PeerContext *p = cls;
 
@@ -101,39 +99,35 @@ process_hello (void *cls,
 
 
 static void
-setup_peer (struct PeerContext *p,
-           const char *cfgname)
+setup_peer (struct PeerContext *p, const char *cfgname)
 {
   char *binary;
 
   binary = GNUNET_OS_get_libexec_binary_path ("gnunet-service-arm");
   p->cfg = GNUNET_CONFIGURATION_create ();
-  p->arm_proc =
-    GNUNET_OS_start_process (GNUNET_YES,
-                            GNUNET_OS_INHERIT_STD_OUT_AND_ERR,
-                             NULL,
-                            NULL,
-                            NULL,
-                             binary,
-                             "gnunet-service-arm",
-                             "-c",
-                            cfgname,
-                            NULL);
-  GNUNET_assert (GNUNET_OK ==
-                GNUNET_CONFIGURATION_load (p->cfg,
-                                           cfgname));
+  p->arm_proc = GNUNET_OS_start_process (GNUNET_YES,
+                                         GNUNET_OS_INHERIT_STD_OUT_AND_ERR,
+                                         NULL,
+                                         NULL,
+                                         NULL,
+                                         binary,
+                                         "gnunet-service-arm",
+                                         "-c",
+                                         cfgname,
+                                         NULL);
+  GNUNET_assert (GNUNET_OK == GNUNET_CONFIGURATION_load (p->cfg, cfgname));
   p->th = GNUNET_TRANSPORT_core_connect (p->cfg,
-                                        NULL,
-                                        NULL,
-                                        p,
-                                        &notify_connect,
-                                        NULL,
-                                        NULL);
+                                         NULL,
+                                         NULL,
+                                         p,
+                                         &notify_connect,
+                                         NULL,
+                                         NULL);
   GNUNET_assert (NULL != p->th);
   p->ghh = GNUNET_TRANSPORT_hello_get (p->cfg,
-                                      GNUNET_TRANSPORT_AC_ANY,
-                                      &process_hello,
-                                      p);
+                                       GNUNET_TRANSPORT_AC_ANY,
+                                       &process_hello,
+                                       p);
   GNUNET_free (binary);
 }
 
@@ -143,18 +137,13 @@ waitpid_task (void *cls)
 {
   struct PeerContext *p = cls;
 
+  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Killing ARM process.\n");
+  if (0 != GNUNET_OS_process_kill (p->arm_proc, GNUNET_TERM_SIG))
+    GNUNET_log_strerror (GNUNET_ERROR_TYPE_WARNING, "kill");
+  if (GNUNET_OK != GNUNET_OS_process_wait (p->arm_proc))
+    GNUNET_log_strerror (GNUNET_ERROR_TYPE_WARNING, "waitpid");
   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-             "Killing ARM process.\n");
-  if (0 != GNUNET_OS_process_kill (p->arm_proc,
-                                  GNUNET_TERM_SIG))
-    GNUNET_log_strerror (GNUNET_ERROR_TYPE_WARNING,
-                        "kill");
-  if (GNUNET_OK !=
-      GNUNET_OS_process_wait (p->arm_proc))
-    GNUNET_log_strerror (GNUNET_ERROR_TYPE_WARNING,
-                        "waitpid");
-  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-             "ARM process %u stopped\n",
+              "ARM process %u stopped\n",
               GNUNET_OS_process_get_pid (p->arm_proc));
   GNUNET_OS_process_destroy (p->arm_proc);
   p->arm_proc = NULL;
@@ -165,11 +154,8 @@ waitpid_task (void *cls)
 static void
 stop_arm (struct PeerContext *p)
 {
-  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-             "Asking ARM to stop core service\n");
-  GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_SECONDS,
-                               &waitpid_task,
-                               p);
+  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Asking ARM to stop core service\n");
+  GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_SECONDS, &waitpid_task, p);
 }
 
 
@@ -217,30 +203,22 @@ run (void *cls,
 {
   GNUNET_assert (ok == 1);
   ok++;
-  timeout_task = GNUNET_SCHEDULER_add_delayed (TIMEOUT,
-                                              &timeout_error,
-                                              NULL);
-  GNUNET_SCHEDULER_add_shutdown (&shutdown_task,
-                                 NULL);
-  setup_peer (&p1,
-             "test_gnunet_daemon_hostlist_peer1.conf");
-  setup_peer (&p2,
-             "test_gnunet_daemon_hostlist_peer2.conf");
+  timeout_task = GNUNET_SCHEDULER_add_delayed (TIMEOUT, &timeout_error, NULL);
+  GNUNET_SCHEDULER_add_shutdown (&shutdown_task, NULL);
+  setup_peer (&p1, "test_gnunet_daemon_hostlist_peer1.conf");
+  setup_peer (&p2, "test_gnunet_daemon_hostlist_peer2.conf");
 }
 
 
 int
-main (int argcx,
-      char *argvx[])
+main (int argcx, char *argvx[])
 {
-  static char *const argv[] = {
-    "test-gnunet-daemon-hostlist",
-    "-c", "test_gnunet_daemon_hostlist_data.conf",
-    NULL
-  };
+  static char *const argv[] = {"test-gnunet-daemon-hostlist",
+                               "-c",
+                               "test_gnunet_daemon_hostlist_data.conf",
+                               NULL};
   static struct GNUNET_GETOPT_CommandLineOption options[] = {
-    GNUNET_GETOPT_OPTION_END
-  };
+    GNUNET_GETOPT_OPTION_END};
 
   GNUNET_DISK_purge_cfg_dir ("test_gnunet_daemon_hostlist_peer1.conf",
                              "GNUNET_TEST_HOME");
@@ -248,32 +226,28 @@ main (int argcx,
                              "GNUNET_TEST_HOME");
   GNUNET_DISK_purge_cfg_dir ("test_gnunet_daemon_hostlist_data.conf",
                              "GNUNET_TEST_HOME");
-  GNUNET_log_setup ("test-gnunet-daemon-hostlist",
-                    "WARNING",
-                    NULL);
+  GNUNET_log_setup ("test-gnunet-daemon-hostlist", "WARNING", NULL);
   ok = 1;
   GNUNET_PROGRAM_run ((sizeof (argv) / sizeof (char *)) - 1,
-                     argv,
+                      argv,
                       "test-gnunet-daemon-hostlist",
-                     "nohelp",
-                     options,
-                     &run,
+                      "nohelp",
+                      options,
+                      &run,
                       &ok);
   if (0 == ok)
   {
-    FPRINTF (stderr, "%s",  ".");
+    FPRINTF (stderr, "%s", ".");
     /* now do it again */
     ok = 1;
     GNUNET_PROGRAM_run ((sizeof (argv) / sizeof (char *)) - 1,
-                       argv,
-                       "test-gnunet-daemon-hostlist",
-                       "nohelp",
-                       options,
-                       &run,
-                       &ok);
-    FPRINTF (stderr,
-            "%s",
-            ".\n");
+                        argv,
+                        "test-gnunet-daemon-hostlist",
+                        "nohelp",
+                        options,
+                        &run,
+                        &ok);
+    FPRINTF (stderr, "%s", ".\n");
   }
   GNUNET_DISK_purge_cfg_dir ("test_gnunet_daemon_hostlist_peer1.conf",
                              "GNUNET_TEST_HOME");
diff --git a/src/include/gnunet_protocols.h b/src/include/gnunet_protocols.h
index 27a7034b0..7a089ad65 100644
--- a/src/include/gnunet_protocols.h
+++ b/src/include/gnunet_protocols.h
@@ -1089,9 +1089,17 @@ extern "C" {
 
 /**
  * Message telling transport to limit its receive rate.
+ * (FIXME: was the above comment ever accurate?)
+ *
+ * Note: dead in TNG, replaced by RECV_OK!
  */
 #define GNUNET_MESSAGE_TYPE_TRANSPORT_SET_QUOTA 366
 
+/**
+ * Message telling transport to limit its receive rate.
+ */
+#define GNUNET_MESSAGE_TYPE_TRANSPORT_RECV_OK 366
+
 /**
  * Request to look addresses of peers in server.
  */
diff --git a/src/include/gnunet_transport_communication_service.h 
b/src/include/gnunet_transport_communication_service.h
index ca5a86074..ea1ff732e 100644
--- a/src/include/gnunet_transport_communication_service.h
+++ b/src/include/gnunet_transport_communication_service.h
@@ -1,6 +1,6 @@
 /*
      This file is part of GNUnet.
-     Copyright (C) 2009-2018 GNUnet e.V.
+     Copyright (C) 2009-2019 GNUnet e.V.
 
      GNUnet is free software: you can redistribute it and/or modify it
      under the terms of the GNU Affero General Public License as published
@@ -36,9 +36,8 @@
 #define GNUNET_TRANSPORT_COMMUNICATION_SERVICE_H
 
 #ifdef __cplusplus
-extern "C"
-{
-#if 0                           /* keep Emacsens' auto-indent happy */
+extern "C" {
+#if 0 /* keep Emacsens' auto-indent happy */
 }
 #endif
 #endif
@@ -67,12 +66,13 @@ extern "C"
  * @param peer identity of the other peer
  * @param address where to send the message, human-readable
  *        communicator-specific format, 0-terminated, UTF-8
- * @return #GNUNET_OK on success, #GNUNET_SYSERR if the provided address is 
invalid
+ * @return #GNUNET_OK on success, #GNUNET_SYSERR if the provided address is
+ * invalid
  */
-typedef int
-(*GNUNET_TRANSPORT_CommunicatorMqInit) (void *cls,
-                                        const struct GNUNET_PeerIdentity *peer,
-                                        const char *address);
+typedef int (*GNUNET_TRANSPORT_CommunicatorMqInit) (
+  void *cls,
+  const struct GNUNET_PeerIdentity *peer,
+  const char *address);
 
 
 /**
@@ -87,7 +87,8 @@ struct GNUNET_TRANSPORT_CommunicatorHandle;
  * FIXME: may want to distinguish bi-directional as well,
  * should we define a bit for that? Needed in DV logic (handle_dv_learn)!
  */
-enum GNUNET_TRANSPORT_CommunicatorCharacteristics {
+enum GNUNET_TRANSPORT_CommunicatorCharacteristics
+{
 
   /**
    * Characteristics are unknown (i.e. DV).
@@ -122,10 +123,10 @@ enum GNUNET_TRANSPORT_CommunicatorCharacteristics {
  * @param sender which peer sent the notification
  * @param msg payload
  */
-typedef void
-(*GNUNET_TRANSPORT_CommunicatorNotify) (void *cls,
-                                        const struct GNUNET_PeerIdentity 
*sender,
-                                        const struct GNUNET_MessageHeader 
*msg);
+typedef void (*GNUNET_TRANSPORT_CommunicatorNotify) (
+  void *cls,
+  const struct GNUNET_PeerIdentity *sender,
+  const struct GNUNET_MessageHeader *msg);
 
 
 /**
@@ -145,14 +146,15 @@ typedef void
  * @return NULL on error
  */
 struct GNUNET_TRANSPORT_CommunicatorHandle *
-GNUNET_TRANSPORT_communicator_connect (const struct 
GNUNET_CONFIGURATION_Handle *cfg,
-                                       const char *config_section_name,
-                                       const char *addr_prefix,
-                                       enum 
GNUNET_TRANSPORT_CommunicatorCharacteristics cc,
-                                       GNUNET_TRANSPORT_CommunicatorMqInit 
mq_init,
-                                       void *mq_init_cls,
-                                       GNUNET_TRANSPORT_CommunicatorNotify 
notify_cb,
-                                       void *notify_cb_cls);
+GNUNET_TRANSPORT_communicator_connect (
+  const struct GNUNET_CONFIGURATION_Handle *cfg,
+  const char *config_section_name,
+  const char *addr_prefix,
+  enum GNUNET_TRANSPORT_CommunicatorCharacteristics cc,
+  GNUNET_TRANSPORT_CommunicatorMqInit mq_init,
+  void *mq_init_cls,
+  GNUNET_TRANSPORT_CommunicatorNotify notify_cb,
+  void *notify_cb_cls);
 
 
 /**
@@ -161,22 +163,23 @@ GNUNET_TRANSPORT_communicator_connect (const struct 
GNUNET_CONFIGURATION_Handle
  * @param ch handle returned from connect
  */
 void
-GNUNET_TRANSPORT_communicator_disconnect (struct 
GNUNET_TRANSPORT_CommunicatorHandle *ch);
+GNUNET_TRANSPORT_communicator_disconnect (
+  struct GNUNET_TRANSPORT_CommunicatorHandle *ch);
 
 
 /* ************************* Receiving *************************** */
 
 /**
  * Function called to notify communicator that we have received
- * and processed the message.
+ * and processed the message.  Used for flow control (if supported
+ * by the communicator).
  *
  * @param cls closure
  * @param success #GNUNET_SYSERR on failure (try to disconnect/reset 
connection)
  *                #GNUNET_OK on success
  */
-typedef void
-(*GNUNET_TRANSPORT_MessageCompletedCallback) (void *cls,
-                                              int success);
+typedef void (*GNUNET_TRANSPORT_MessageCompletedCallback) (void *cls,
+                                                           int success);
 
 
 /**
@@ -200,12 +203,13 @@ typedef void
  *         the tranport service is not yet up
  */
 int
-GNUNET_TRANSPORT_communicator_receive (struct 
GNUNET_TRANSPORT_CommunicatorHandle *handle,
-                                       const struct GNUNET_PeerIdentity 
*sender,
-                                       const struct GNUNET_MessageHeader *msg,
-                                       struct GNUNET_TIME_Relative 
expected_addr_validity,
-                                       
GNUNET_TRANSPORT_MessageCompletedCallback cb,
-                                       void *cb_cls);
+GNUNET_TRANSPORT_communicator_receive (
+  struct GNUNET_TRANSPORT_CommunicatorHandle *handle,
+  const struct GNUNET_PeerIdentity *sender,
+  const struct GNUNET_MessageHeader *msg,
+  struct GNUNET_TIME_Relative expected_addr_validity,
+  GNUNET_TRANSPORT_MessageCompletedCallback cb,
+  void *cb_cls);
 
 
 /* ************************* Discovery *************************** */
@@ -220,7 +224,8 @@ struct GNUNET_TRANSPORT_QueueHandle;
 /**
  * Possible states of a connection.
  */
-enum GNUNET_TRANSPORT_ConnectionStatus {
+enum GNUNET_TRANSPORT_ConnectionStatus
+{
 
   /**
    * Connection is down.
@@ -255,13 +260,14 @@ enum GNUNET_TRANSPORT_ConnectionStatus {
  * @return API handle identifying the new MQ
  */
 struct GNUNET_TRANSPORT_QueueHandle *
-GNUNET_TRANSPORT_communicator_mq_add (struct 
GNUNET_TRANSPORT_CommunicatorHandle *ch,
-                                      const struct GNUNET_PeerIdentity *peer,
-                                      const char *address,
-                                      uint32_t mtu,
-                                      enum GNUNET_NetworkType nt,
-                                      enum GNUNET_TRANSPORT_ConnectionStatus 
cs,
-                                      struct GNUNET_MQ_Handle *mq);
+GNUNET_TRANSPORT_communicator_mq_add (
+  struct GNUNET_TRANSPORT_CommunicatorHandle *ch,
+  const struct GNUNET_PeerIdentity *peer,
+  const char *address,
+  uint32_t mtu,
+  enum GNUNET_NetworkType nt,
+  enum GNUNET_TRANSPORT_ConnectionStatus cs,
+  struct GNUNET_MQ_Handle *mq);
 
 
 /**
@@ -291,10 +297,11 @@ struct GNUNET_TRANSPORT_AddressIdentifier;
  * @param expiration when does the communicator forsee this address expiring?
  */
 struct GNUNET_TRANSPORT_AddressIdentifier *
-GNUNET_TRANSPORT_communicator_address_add (struct 
GNUNET_TRANSPORT_CommunicatorHandle *ch,
-                                           const char *address,
-                                           enum GNUNET_NetworkType nt,
-                                           struct GNUNET_TIME_Relative 
expiration);
+GNUNET_TRANSPORT_communicator_address_add (
+  struct GNUNET_TRANSPORT_CommunicatorHandle *ch,
+  const char *address,
+  enum GNUNET_NetworkType nt,
+  struct GNUNET_TIME_Relative expiration);
 
 
 /**
@@ -304,7 +311,8 @@ GNUNET_TRANSPORT_communicator_address_add (struct 
GNUNET_TRANSPORT_CommunicatorH
  * @param ai address that is no longer provided
  */
 void
-GNUNET_TRANSPORT_communicator_address_remove (struct 
GNUNET_TRANSPORT_AddressIdentifier *ai);
+GNUNET_TRANSPORT_communicator_address_remove (
+  struct GNUNET_TRANSPORT_AddressIdentifier *ai);
 
 
 /**
@@ -326,13 +334,14 @@ GNUNET_TRANSPORT_communicator_address_remove (struct 
GNUNET_TRANSPORT_AddressIde
  *        notify-API to @a pid's communicator @a comm
  */
 void
-GNUNET_TRANSPORT_communicator_notify (struct 
GNUNET_TRANSPORT_CommunicatorHandle *ch,
-                                      const struct GNUNET_PeerIdentity *pid,
-                                      const char *comm,
-                                      const struct GNUNET_MessageHeader 
*header);
+GNUNET_TRANSPORT_communicator_notify (
+  struct GNUNET_TRANSPORT_CommunicatorHandle *ch,
+  const struct GNUNET_PeerIdentity *pid,
+  const char *comm,
+  const struct GNUNET_MessageHeader *header);
 
 
-#if 0                           /* keep Emacsens' auto-indent happy */
+#if 0 /* keep Emacsens' auto-indent happy */
 {
 #endif
 #ifdef __cplusplus
@@ -342,6 +351,6 @@ GNUNET_TRANSPORT_communicator_notify (struct 
GNUNET_TRANSPORT_CommunicatorHandle
 /* ifndef GNUNET_TRANSPORT_COMMUNICATOR_SERVICE_H */
 #endif
 
-/** @} */  /* end of group */
+/** @} */ /* end of group */
 
 /* end of gnunet_transport_communicator_service.h */
diff --git a/src/include/gnunet_transport_core_service.h 
b/src/include/gnunet_transport_core_service.h
index f442b53c0..076514779 100644
--- a/src/include/gnunet_transport_core_service.h
+++ b/src/include/gnunet_transport_core_service.h
@@ -1,6 +1,6 @@
 /*
      This file is part of GNUnet.
-     Copyright (C) 2009-2016 GNUnet e.V.
+     Copyright (C) 2009-2019 GNUnet e.V.
 
      GNUnet is free software: you can redistribute it and/or modify it
      under the terms of the GNU Affero General Public License as published
@@ -11,7 +11,7 @@
      WITHOUT ANY WARRANTY; without even the implied warranty of
      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      Affero General Public License for more details.
-    
+
      You should have received a copy of the GNU Affero General Public License
      along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
@@ -21,7 +21,7 @@
  * @author Christian Grothoff
  *
  * @file
- * API of the transport service towards the CORE service.
+ * API of the transport service towards the CORE service (TNG version)
  *
  * @defgroup transport TRANSPORT service
  * Communication with other peers
@@ -34,9 +34,8 @@
 #define GNUNET_TRANSPORT_CORE_SERVICE_H
 
 #ifdef __cplusplus
-extern "C"
-{
-#if 0                           /* keep Emacsens' auto-indent happy */
+extern "C" {
+#if 0 /* keep Emacsens' auto-indent happy */
 }
 #endif
 #endif
@@ -62,15 +61,15 @@ struct GNUNET_TRANSPORT_CoreHandle;
  * @param cls closure
  * @param peer the identity of the peer that connected; this
  *        pointer will remain valid until the disconnect, hence
- *        applications do not necessarily have to make a copy 
+ *        applications do not necessarily have to make a copy
  *        of the value if they only need it until disconnect
  * @param mq message queue to use to transmit to @a peer
  * @return closure to use in MQ handlers
  */
-typedef void *
-(*GNUNET_TRANSPORT_NotifyConnect) (void *cls,
-                                   const struct GNUNET_PeerIdentity *peer,
-                                   struct GNUNET_MQ_Handle *mq);
+typedef void *(*GNUNET_TRANSPORT_NotifyConnect) (
+  void *cls,
+  const struct GNUNET_PeerIdentity *peer,
+  struct GNUNET_MQ_Handle *mq);
 
 
 /**
@@ -84,33 +83,10 @@ typedef void *
  * @param handlers_cls closure of the handlers, was returned from the
  *                    connect notification callback
  */
-typedef void
-(*GNUNET_TRANSPORT_NotifyDisconnect) (void *cls,
-                                      const struct GNUNET_PeerIdentity *peer,
-                                      void *handler_cls);
-
-
-/**
- * Function called if we have "excess" bandwidth to a peer.
- * The notification will happen the first time we have excess
- * bandwidth, and then only again after the client has performed
- * some transmission to the peer.
- *
- * Excess bandwidth is defined as being allowed (by ATS) to send
- * more data, and us reaching the limit of the capacity build-up
- * (which, if we go past it, means we don't use available bandwidth).
- * See also the "max carry" in `struct GNUNET_BANDWIDTH_Tracker`.
- *
- * @param cls the closure
- * @param neighbour peer that we have excess bandwidth to
- * @param handlers_cls closure of the handlers, was returned from the
- *                    connect notification callback
- */
-typedef void
-(*GNUNET_TRANSPORT_NotifyExcessBandwidth)(void *cls,
-                                          const struct GNUNET_PeerIdentity 
*neighbour,
-                                          void *handlers_cls);
-
+typedef void (*GNUNET_TRANSPORT_NotifyDisconnect) (
+  void *cls,
+  const struct GNUNET_PeerIdentity *peer,
+  void *handler_cls);
 
 
 /**
@@ -136,8 +112,7 @@ GNUNET_TRANSPORT_core_connect (const struct 
GNUNET_CONFIGURATION_Handle *cfg,
                                const struct GNUNET_MQ_MessageHandler *handlers,
                                void *cls,
                                GNUNET_TRANSPORT_NotifyConnect nc,
-                               GNUNET_TRANSPORT_NotifyDisconnect nd,
-                               GNUNET_TRANSPORT_NotifyExcessBandwidth neb);
+                               GNUNET_TRANSPORT_NotifyDisconnect nd);
 
 
 /**
@@ -149,8 +124,34 @@ void
 GNUNET_TRANSPORT_core_disconnect (struct GNUNET_TRANSPORT_CoreHandle *handle);
 
 
+/**
+ * Notification from the CORE service to the TRANSPORT service
+ * that the CORE service has finished processing a message from
+ * TRANSPORT (via the @code{handlers} of #GNUNET_TRANSPORT_core_connect())
+ * and that it is thus now OK for TRANSPORT to send more messages
+ * for @a pid.
+ *
+ * Used to provide flow control, this is our equivalent to
+ * #GNUNET_SERVICE_client_continue() of an ordinary service.
+ *
+ * Note that due to the use of a window, TRANSPORT may send multiple
+ * messages destined for the same peer even without an intermediate
+ * call to this function. However, CORE must still call this function
+ * once per message received, as otherwise eventually the window will
+ * be full and TRANSPORT will stop providing messages to CORE for @a
+ * pid.
+ *
+ * @param ch core handle
+ * @param pid which peer was the message from that was fully processed by CORE
+ */
+void
+GNUNET_TRANSPORT_core_receive_continue (struct GNUNET_TRANSPORT_CoreHandle *ch,
+                                        const struct GNUNET_PeerIdentity *pid);
+
+
 /**
  * Checks if a given peer is connected to us and get the message queue.
+ * Convenience function.
  *
  * @param handle connection to transport service
  * @param peer the peer to check
@@ -161,7 +162,7 @@ GNUNET_TRANSPORT_core_get_mq (struct 
GNUNET_TRANSPORT_CoreHandle *handle,
                               const struct GNUNET_PeerIdentity *peer);
 
 
-#if 0                           /* keep Emacsens' auto-indent happy */
+#if 0 /* keep Emacsens' auto-indent happy */
 {
 #endif
 #ifdef __cplusplus
@@ -171,6 +172,6 @@ GNUNET_TRANSPORT_core_get_mq (struct 
GNUNET_TRANSPORT_CoreHandle *handle,
 /* ifndef GNUNET_TRANSPORT_CORE_SERVICE_H */
 #endif
 
-/** @} */  /* end of group */
+/** @} */ /* end of group */
 
 /* end of gnunet_transport_core_service.h */
diff --git a/src/include/gnunet_transport_service.h 
b/src/include/gnunet_transport_service.h
index c5cb10ad8..80949b417 100644
--- a/src/include/gnunet_transport_service.h
+++ b/src/include/gnunet_transport_service.h
@@ -11,7 +11,7 @@
      WITHOUT ANY WARRANTY; without even the implied warranty of
      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      Affero General Public License for more details.
-    
+
      You should have received a copy of the GNU Affero General Public License
      along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
@@ -36,9 +36,8 @@
 #define GNUNET_TRANSPORT_SERVICE_H
 
 #ifdef __cplusplus
-extern "C"
-{
-#if 0                           /* keep Emacsens' auto-indent happy */
+extern "C" {
+#if 0 /* keep Emacsens' auto-indent happy */
 }
 #endif
 #endif
@@ -71,8 +70,8 @@ struct GNUNET_TRANSPORT_OfferHelloHandle;
  *      tc reason #GNUNET_SCHEDULER_REASON_TIMEOUT for fail
  *      tc reasong #GNUNET_SCHEDULER_REASON_READ_READY for success
  * @param cont_cls closure for @a cont
- * @return a `struct GNUNET_TRANSPORT_OfferHelloHandle` handle or NULL on 
failure,
- *      in case of failure @a cont will not be called
+ * @return a `struct GNUNET_TRANSPORT_OfferHelloHandle` handle or NULL on
+ * failure, in case of failure @a cont will not be called
  *
  */
 struct GNUNET_TRANSPORT_OfferHelloHandle *
@@ -88,7 +87,8 @@ GNUNET_TRANSPORT_offer_hello (const struct 
GNUNET_CONFIGURATION_Handle *cfg,
  * @param ohh the `struct GNUNET_TRANSPORT_OfferHelloHandle` to cancel
  */
 void
-GNUNET_TRANSPORT_offer_hello_cancel (struct GNUNET_TRANSPORT_OfferHelloHandle 
*ohh);
+GNUNET_TRANSPORT_offer_hello_cancel (
+  struct GNUNET_TRANSPORT_OfferHelloHandle *ohh);
 
 
 /* *********************** Address to String ******************* */
@@ -115,10 +115,9 @@ struct GNUNET_TRANSPORT_AddressToStringContext;
  *        if #GNUNET_NO: address was invalid (or not supported)
  *        if #GNUNET_SYSERR: communication error (IPC error)
  */
-typedef void
-(*GNUNET_TRANSPORT_AddressToStringCallback) (void *cls,
-                                             const char *address,
-                                             int res);
+typedef void (*GNUNET_TRANSPORT_AddressToStringCallback) (void *cls,
+                                                          const char *address,
+                                                          int res);
 
 
 /**
@@ -134,12 +133,13 @@ typedef void
  * @return handle to cancel the operation, NULL on error
  */
 struct GNUNET_TRANSPORT_AddressToStringContext *
-GNUNET_TRANSPORT_address_to_string (const struct GNUNET_CONFIGURATION_Handle 
*cfg,
-                                    const struct GNUNET_HELLO_Address *address,
-                                    int numeric,
-                                    struct GNUNET_TIME_Relative timeout,
-                                    GNUNET_TRANSPORT_AddressToStringCallback 
aluc,
-                                    void *aluc_cls);
+GNUNET_TRANSPORT_address_to_string (
+  const struct GNUNET_CONFIGURATION_Handle *cfg,
+  const struct GNUNET_HELLO_Address *address,
+  int numeric,
+  struct GNUNET_TIME_Relative timeout,
+  GNUNET_TRANSPORT_AddressToStringCallback aluc,
+  void *aluc_cls);
 
 
 /**
@@ -148,14 +148,16 @@ GNUNET_TRANSPORT_address_to_string (const struct 
GNUNET_CONFIGURATION_Handle *cf
  * @param alc the context handle
  */
 void
-GNUNET_TRANSPORT_address_to_string_cancel (struct 
GNUNET_TRANSPORT_AddressToStringContext *alc);
+GNUNET_TRANSPORT_address_to_string_cancel (
+  struct GNUNET_TRANSPORT_AddressToStringContext *alc);
 
 
 /* *********************** Monitoring ************************** */
 
 
 /**
- * Possible state of a neighbour.  Initially, we are 
#GNUNET_TRANSPORT_PS_NOT_CONNECTED.
+ * Possible state of a neighbour.  Initially, we are
+ * #GNUNET_TRANSPORT_PS_NOT_CONNECTED.
  *
  * Then, there are two main paths. If we receive a SYN message, we give
  * the inbound address to ATS. After the check we ask ATS for a suggestion
@@ -174,14 +176,14 @@ GNUNET_TRANSPORT_address_to_string_cancel (struct 
GNUNET_TRANSPORT_AddressToStri
  * #GNUNET_TRANSPORT_PS_DISCONNECT.
  *
  * If the session is in trouble (i.e. transport-level disconnect or
- * timeout), we go to #GNUNET_TRANSPORT_PS_RECONNECT_ATS where we ask ATS for 
a new
- * address (we don't notify anyone about the disconnect yet).  Once we
- * have a new address, we enter #GNUNET_TRANSPORT_PS_RECONNECT_SENT and send a
- * SYN message.  If we receive a
- * SYN_ACK, we go to #GNUNET_TRANSPORT_PS_CONNECTED and nobody noticed that we 
had
- * trouble; we also send a ACK at this time just in case.  If
- * the operation times out, we go to #GNUNET_TRANSPORT_PS_DISCONNECT (and 
notify everyone
- * about the lost connection).
+ * timeout), we go to #GNUNET_TRANSPORT_PS_RECONNECT_ATS where we ask ATS for a
+ * new address (we don't notify anyone about the disconnect yet).  Once we have
+ * a new address, we enter #GNUNET_TRANSPORT_PS_RECONNECT_SENT and send a SYN
+ * message.  If we receive a SYN_ACK, we go to #GNUNET_TRANSPORT_PS_CONNECTED
+ * and nobody noticed that we had trouble; we also send a ACK at this time just
+ * in case.  If the operation times out, we go to
+ * #GNUNET_TRANSPORT_PS_DISCONNECT (and notify everyone about the lost
+ * connection).
  *
  * If ATS decides to switch addresses while we have a normal
  * connection, we go to #GNUNET_TRANSPORT_PS_CONNECTED_SWITCHING_SYN_SENT
@@ -189,13 +191,14 @@ GNUNET_TRANSPORT_address_to_string_cancel (struct 
GNUNET_TRANSPORT_AddressToStri
  * primary connection to the suggested alternative from ATS, go back
  * to #GNUNET_TRANSPORT_PS_CONNECTED and send a ACK to the other peer just to 
be
  * sure.  If the operation times out
- * we go to #GNUNET_TRANSPORT_PS_CONNECTED (and notify ATS that the given 
alternative
- * address is "invalid").
+ * we go to #GNUNET_TRANSPORT_PS_CONNECTED (and notify ATS that the given
+ * alternative address is "invalid").
  *
- * Once a session is in #GNUNET_TRANSPORT_PS_DISCONNECT, it is cleaned up and 
then goes
- * to (#GNUNET_TRANSPORT_PS_DISCONNECT_FINISHED).  If we receive an explicit 
disconnect
- * request, we can go from any state to #GNUNET_TRANSPORT_PS_DISCONNECT, 
possibly after
- * generating disconnect notifications.
+ * Once a session is in #GNUNET_TRANSPORT_PS_DISCONNECT, it is cleaned up and
+ * then goes to (#GNUNET_TRANSPORT_PS_DISCONNECT_FINISHED).  If we receive an
+ * explicit disconnect request, we can go from any state to
+ * #GNUNET_TRANSPORT_PS_DISCONNECT, possibly after generating disconnect
+ * notifications.
  *
  * Note that it is quite possible that while we are in any of these
  * states, we could receive a 'SYN' request from the other peer.
@@ -323,12 +326,12 @@ struct GNUNET_TRANSPORT_PeerMonitoringContext;
  * @param state current state this peer is in
  * @param state_timeout timeout for the current state of the peer
  */
-typedef void
-(*GNUNET_TRANSPORT_PeerIterateCallback) (void *cls,
-                                         const struct GNUNET_PeerIdentity 
*peer,
-                                         const struct GNUNET_HELLO_Address 
*address,
-                                         enum GNUNET_TRANSPORT_PeerState state,
-                                         struct GNUNET_TIME_Absolute 
state_timeout);
+typedef void (*GNUNET_TRANSPORT_PeerIterateCallback) (
+  void *cls,
+  const struct GNUNET_PeerIdentity *peer,
+  const struct GNUNET_HELLO_Address *address,
+  enum GNUNET_TRANSPORT_PeerState state,
+  struct GNUNET_TIME_Absolute state_timeout);
 
 
 /**
@@ -352,17 +355,18 @@ typedef void
  * @param cfg configuration to use
  * @param peer a specific peer identity to obtain information for,
  *      NULL for all peers
- * @param one_shot #GNUNET_YES to return the current state and then end (with 
NULL+NULL),
- *                 #GNUNET_NO to monitor peers continuously
+ * @param one_shot #GNUNET_YES to return the current state and then end (with
+ * NULL+NULL), #GNUNET_NO to monitor peers continuously
  * @param peer_callback function to call with the results
  * @param peer_callback_cls closure for @a peer_callback
  */
 struct GNUNET_TRANSPORT_PeerMonitoringContext *
-GNUNET_TRANSPORT_monitor_peers (const struct GNUNET_CONFIGURATION_Handle *cfg,
-                                const struct GNUNET_PeerIdentity *peer,
-                                int one_shot,
-                                GNUNET_TRANSPORT_PeerIterateCallback 
peer_callback,
-                                void *peer_callback_cls);
+GNUNET_TRANSPORT_monitor_peers (
+  const struct GNUNET_CONFIGURATION_Handle *cfg,
+  const struct GNUNET_PeerIdentity *peer,
+  int one_shot,
+  GNUNET_TRANSPORT_PeerIterateCallback peer_callback,
+  void *peer_callback_cls);
 
 
 /**
@@ -371,7 +375,8 @@ GNUNET_TRANSPORT_monitor_peers (const struct 
GNUNET_CONFIGURATION_Handle *cfg,
  * @param pic handle for the request to cancel
  */
 void
-GNUNET_TRANSPORT_monitor_peers_cancel (struct 
GNUNET_TRANSPORT_PeerMonitoringContext *pic);
+GNUNET_TRANSPORT_monitor_peers_cancel (
+  struct GNUNET_TRANSPORT_PeerMonitoringContext *pic);
 
 
 /* *********************** Blacklisting ************************ */
@@ -389,9 +394,9 @@ struct GNUNET_TRANSPORT_Blacklist;
  * @param pid peer to approve or disapproave
  * @return #GNUNET_OK if the connection is allowed, #GNUNET_SYSERR if not
  */
-typedef int
-(*GNUNET_TRANSPORT_BlacklistCallback) (void *cls,
-                                       const struct GNUNET_PeerIdentity *pid);
+typedef int (*GNUNET_TRANSPORT_BlacklistCallback) (
+  void *cls,
+  const struct GNUNET_PeerIdentity *pid);
 
 
 /**
@@ -539,11 +544,11 @@ struct GNUNET_TRANSPORT_SessionInfo
  *        NULL with @a session being non-NULL if the monitor
  *        was being cancelled while sessions were active
  */
-typedef void
-(*GNUNET_TRANSPORT_SessionMonitorCallback) (void *cls,
-                                            struct 
GNUNET_TRANSPORT_PluginSession *session,
-                                            void **session_ctx,
-                                            const struct 
GNUNET_TRANSPORT_SessionInfo *info);
+typedef void (*GNUNET_TRANSPORT_SessionMonitorCallback) (
+  void *cls,
+  struct GNUNET_TRANSPORT_PluginSession *session,
+  void **session_ctx,
+  const struct GNUNET_TRANSPORT_SessionInfo *info);
 
 
 /**
@@ -569,11 +574,122 @@ GNUNET_TRANSPORT_monitor_plugins (const struct 
GNUNET_CONFIGURATION_Handle *cfg,
  * @param pm handle of the request that is to be cancelled
  */
 void
-GNUNET_TRANSPORT_monitor_plugins_cancel (struct GNUNET_TRANSPORT_PluginMonitor 
*pm);
+GNUNET_TRANSPORT_monitor_plugins_cancel (
+  struct GNUNET_TRANSPORT_PluginMonitor *pm);
+
+
+/**
+ * Opaque handle to the service.
+ */
+struct GNUNET_TRANSPORT_CoreHandle;
+
+
+/**
+ * Function called to notify transport users that another
+ * peer connected to us.
+ *
+ * @param cls closure
+ * @param peer the identity of the peer that connected; this
+ *        pointer will remain valid until the disconnect, hence
+ *        applications do not necessarily have to make a copy
+ *        of the value if they only need it until disconnect
+ * @param mq message queue to use to transmit to @a peer
+ * @return closure to use in MQ handlers
+ */
+typedef void *(*GNUNET_TRANSPORT_NotifyConnect) (
+  void *cls,
+  const struct GNUNET_PeerIdentity *peer,
+  struct GNUNET_MQ_Handle *mq);
+
+
+/**
+ * Function called to notify transport users that another peer
+ * disconnected from us.  The message queue that was given to the
+ * connect notification will be destroyed and must not be used
+ * henceforth.
+ *
+ * @param cls closure from #GNUNET_TRANSPORT_core_connect
+ * @param peer the peer that disconnected
+ * @param handlers_cls closure of the handlers, was returned from the
+ *                    connect notification callback
+ */
+typedef void (*GNUNET_TRANSPORT_NotifyDisconnect) (
+  void *cls,
+  const struct GNUNET_PeerIdentity *peer,
+  void *handler_cls);
+
+
+/**
+ * Function called if we have "excess" bandwidth to a peer.
+ * The notification will happen the first time we have excess
+ * bandwidth, and then only again after the client has performed
+ * some transmission to the peer.
+ *
+ * Excess bandwidth is defined as being allowed (by ATS) to send
+ * more data, and us reaching the limit of the capacity build-up
+ * (which, if we go past it, means we don't use available bandwidth).
+ * See also the "max carry" in `struct GNUNET_BANDWIDTH_Tracker`.
+ *
+ * @param cls the closure
+ * @param neighbour peer that we have excess bandwidth to
+ * @param handlers_cls closure of the handlers, was returned from the
+ *                    connect notification callback
+ */
+typedef void (*GNUNET_TRANSPORT_NotifyExcessBandwidth) (
+  void *cls,
+  const struct GNUNET_PeerIdentity *neighbour,
+  void *handlers_cls);
+
+
+/**
+ * Connect to the transport service.  Note that the connection may
+ * complete (or fail) asynchronously.
+ *
+ * @param cfg configuration to use
+ * @param self our own identity (API should check that it matches
+ *             the identity found by transport), or NULL (no check)
+ * @param handlers array of message handlers; note that the
+ *                 closures provided will be ignored and replaced
+ *                 with the respective return value from @a nc
+ * @param handlers array with handlers to call when we receive messages, or 
NULL
+ * @param cls closure for the @a nc, @a nd and @a neb callbacks
+ * @param nc function to call on connect events, or NULL
+ * @param nd function to call on disconnect events, or NULL
+ * @param neb function to call if we have excess bandwidth to a peer, or NULL
+ * @return NULL on error
+ */
+struct GNUNET_TRANSPORT_CoreHandle *
+GNUNET_TRANSPORT_core_connect (const struct GNUNET_CONFIGURATION_Handle *cfg,
+                               const struct GNUNET_PeerIdentity *self,
+                               const struct GNUNET_MQ_MessageHandler *handlers,
+                               void *cls,
+                               GNUNET_TRANSPORT_NotifyConnect nc,
+                               GNUNET_TRANSPORT_NotifyDisconnect nd,
+                               GNUNET_TRANSPORT_NotifyExcessBandwidth neb);
+
+
+/**
+ * Disconnect from the transport service.
+ *
+ * @param handle handle returned from connect
+ */
+void
+GNUNET_TRANSPORT_core_disconnect (struct GNUNET_TRANSPORT_CoreHandle *handle);
 
 
+/**
+ * Checks if a given peer is connected to us and get the message queue.
+ *
+ * @param handle connection to transport service
+ * @param peer the peer to check
+ * @return NULL if disconnected, otherwise message queue for @a peer
+ */
+struct GNUNET_MQ_Handle *
+GNUNET_TRANSPORT_core_get_mq (struct GNUNET_TRANSPORT_CoreHandle *handle,
+                              const struct GNUNET_PeerIdentity *peer);
+
 
-#if 0                           /* keep Emacsens' auto-indent happy */
+#if 0 /* keep Emacsens' auto-indent happy */
 {
 #endif
 #ifdef __cplusplus
@@ -583,6 +699,6 @@ GNUNET_TRANSPORT_monitor_plugins_cancel (struct 
GNUNET_TRANSPORT_PluginMonitor *
 /* ifndef GNUNET_TRANSPORT_SERVICE_H */
 #endif
 
-/** @} */  /* end of group */
+/** @} */ /* end of group */
 
 /* end of gnunet_transport_service.h */
diff --git a/src/namestore/namestore_api_monitor.c 
b/src/namestore/namestore_api_monitor.c
index 99e3864c9..2881a28ac 100644
--- a/src/namestore/namestore_api_monitor.c
+++ b/src/namestore/namestore_api_monitor.c
@@ -88,7 +88,6 @@ struct GNUNET_NAMESTORE_ZoneMonitor
    * Do we first iterate over all existing records?
    */
   int iterate_first;
-
 };
 
 
@@ -108,8 +107,7 @@ reconnect (struct GNUNET_NAMESTORE_ZoneMonitor *zm);
  * @param msg the sync message
  */
 static void
-handle_sync (void *cls,
-             const struct GNUNET_MessageHeader *msg)
+handle_sync (void *cls, const struct GNUNET_MessageHeader *msg)
 {
   struct GNUNET_NAMESTORE_ZoneMonitor *zm = cls;
 
@@ -128,10 +126,8 @@ handle_sync (void *cls,
  * @param lrm the message from the service.
  */
 static int
-check_result (void *cls,
-              const struct RecordResultMessage *lrm)
+check_result (void *cls, const struct RecordResultMessage *lrm)
 {
-  static struct GNUNET_CRYPTO_EcdsaPrivateKey zero;
   struct GNUNET_NAMESTORE_ZoneMonitor *zm = cls;
   size_t lrm_len;
   size_t exp_lrm_len;
@@ -142,9 +138,8 @@ check_result (void *cls,
   const char *rd_ser_tmp;
 
   (void) cls;
-  if ( (0 != GNUNET_memcmp (&lrm->private_key,
-                    &zm->zone)) &&
-       (0 != GNUNET_is_zero (&zm->zone)) )
+  if ((0 != GNUNET_memcmp (&lrm->private_key, &zm->zone)) &&
+      (0 != GNUNET_is_zero (&zm->zone)))
   {
     GNUNET_break (0);
     return GNUNET_SYSERR;
@@ -170,7 +165,7 @@ check_result (void *cls,
     return GNUNET_SYSERR;
   }
   name_tmp = (const char *) &lrm[1];
-  if (name_tmp[name_len -1] != '\0')
+  if (name_tmp[name_len - 1] != '\0')
   {
     GNUNET_break (0);
     return GNUNET_SYSERR;
@@ -180,10 +175,7 @@ check_result (void *cls,
     struct GNUNET_GNSRECORD_Data rd[rd_count];
 
     if (GNUNET_OK !=
-        GNUNET_GNSRECORD_records_deserialize (rd_len,
-                                              rd_ser_tmp,
-                                              rd_count,
-                                              rd))
+        GNUNET_GNSRECORD_records_deserialize (rd_len, rd_ser_tmp, rd_count, 
rd))
     {
       GNUNET_break (0);
       return GNUNET_SYSERR;
@@ -201,8 +193,7 @@ check_result (void *cls,
  * @param lrm the message from the service.
  */
 static void
-handle_result (void *cls,
-               const struct RecordResultMessage *lrm)
+handle_result (void *cls, const struct RecordResultMessage *lrm)
 {
   struct GNUNET_NAMESTORE_ZoneMonitor *zm = cls;
   size_t name_len;
@@ -219,16 +210,10 @@ handle_result (void *cls,
   {
     struct GNUNET_GNSRECORD_Data rd[rd_count];
 
-    GNUNET_assert (GNUNET_OK ==
-                   GNUNET_GNSRECORD_records_deserialize (rd_len,
-                                                         rd_ser_tmp,
-                                                         rd_count,
-                                                         rd));
-    zm->monitor (zm->monitor_cls,
-                &lrm->private_key,
-                name_tmp,
-                rd_count,
-                 rd);
+    GNUNET_assert (
+      GNUNET_OK ==
+      GNUNET_GNSRECORD_records_deserialize (rd_len, rd_ser_tmp, rd_count, rd));
+    zm->monitor (zm->monitor_cls, &lrm->private_key, name_tmp, rd_count, rd);
   }
 }
 
@@ -242,8 +227,7 @@ handle_result (void *cls,
  * @param error error code
  */
 static void
-mq_error_handler (void *cls,
-                  enum GNUNET_MQ_Error error)
+mq_error_handler (void *cls, enum GNUNET_MQ_Error error)
 {
   struct GNUNET_NAMESTORE_ZoneMonitor *zm = cls;
 
@@ -260,17 +244,16 @@ mq_error_handler (void *cls,
 static void
 reconnect (struct GNUNET_NAMESTORE_ZoneMonitor *zm)
 {
-  struct GNUNET_MQ_MessageHandler handlers[] = {
-    GNUNET_MQ_hd_fixed_size (sync,
-                             GNUNET_MESSAGE_TYPE_NAMESTORE_MONITOR_SYNC,
-                             struct GNUNET_MessageHeader,
-                             zm),
-    GNUNET_MQ_hd_var_size (result,
-                           GNUNET_MESSAGE_TYPE_NAMESTORE_RECORD_RESULT,
-                           struct RecordResultMessage,
-                           zm),
-    GNUNET_MQ_handler_end ()
-  };
+  struct GNUNET_MQ_MessageHandler handlers[] =
+    {GNUNET_MQ_hd_fixed_size (sync,
+                              GNUNET_MESSAGE_TYPE_NAMESTORE_MONITOR_SYNC,
+                              struct GNUNET_MessageHeader,
+                              zm),
+     GNUNET_MQ_hd_var_size (result,
+                            GNUNET_MESSAGE_TYPE_NAMESTORE_RECORD_RESULT,
+                            struct RecordResultMessage,
+                            zm),
+     GNUNET_MQ_handler_end ()};
   struct GNUNET_MQ_Envelope *env;
   struct ZoneMonitorStartMessage *sm;
 
@@ -286,12 +269,10 @@ reconnect (struct GNUNET_NAMESTORE_ZoneMonitor *zm)
                                   zm);
   if (NULL == zm->mq)
     return;
-  env = GNUNET_MQ_msg (sm,
-                       GNUNET_MESSAGE_TYPE_NAMESTORE_MONITOR_START);
+  env = GNUNET_MQ_msg (sm, GNUNET_MESSAGE_TYPE_NAMESTORE_MONITOR_START);
   sm->iterate_first = htonl (zm->iterate_first);
   sm->zone = zm->zone;
-  GNUNET_MQ_send (zm->mq,
-                  env);
+  GNUNET_MQ_send (zm->mq, env);
 }
 
 
@@ -304,7 +285,8 @@ reconnect (struct GNUNET_NAMESTORE_ZoneMonitor *zm)
  * @param cfg configuration to use to connect to namestore
  * @param zone zone to monitor
  * @param iterate_first #GNUNET_YES to first iterate over all existing records,
- *                      #GNUNET_NO to only return changes that happen from now 
on
+ *                      #GNUNET_NO to only return changes that happen from now
+ * on
  * @param error_cb function to call on error (i.e. disconnect); note that
  *         unlike the other error callbacks in this API, a call to this
  *         function does NOT destroy the monitor handle, it merely signals
@@ -318,15 +300,16 @@ reconnect (struct GNUNET_NAMESTORE_ZoneMonitor *zm)
  * @return handle to stop monitoring
  */
 struct GNUNET_NAMESTORE_ZoneMonitor *
-GNUNET_NAMESTORE_zone_monitor_start (const struct GNUNET_CONFIGURATION_Handle 
*cfg,
-                                    const struct GNUNET_CRYPTO_EcdsaPrivateKey 
*zone,
-                                     int iterate_first,
-                                     GNUNET_SCHEDULER_TaskCallback error_cb,
-                                     void *error_cb_cls,
-                                    GNUNET_NAMESTORE_RecordMonitor monitor,
-                                     void *monitor_cls,
-                                    GNUNET_SCHEDULER_TaskCallback sync_cb,
-                                    void *sync_cb_cls)
+GNUNET_NAMESTORE_zone_monitor_start (
+  const struct GNUNET_CONFIGURATION_Handle *cfg,
+  const struct GNUNET_CRYPTO_EcdsaPrivateKey *zone,
+  int iterate_first,
+  GNUNET_SCHEDULER_TaskCallback error_cb,
+  void *error_cb_cls,
+  GNUNET_NAMESTORE_RecordMonitor monitor,
+  void *monitor_cls,
+  GNUNET_SCHEDULER_TaskCallback sync_cb,
+  void *sync_cb_cls)
 {
   struct GNUNET_NAMESTORE_ZoneMonitor *zm;
 
@@ -379,11 +362,9 @@ GNUNET_NAMESTORE_zone_monitor_next (struct 
GNUNET_NAMESTORE_ZoneMonitor *zm,
   struct GNUNET_MQ_Envelope *env;
   struct ZoneMonitorNextMessage *nm;
 
-  env = GNUNET_MQ_msg (nm,
-                       GNUNET_MESSAGE_TYPE_NAMESTORE_MONITOR_NEXT);
+  env = GNUNET_MQ_msg (nm, GNUNET_MESSAGE_TYPE_NAMESTORE_MONITOR_NEXT);
   nm->limit = GNUNET_htonll (limit);
-  GNUNET_MQ_send (zm->mq,
-                  env);
+  GNUNET_MQ_send (zm->mq, env);
 }
 
 
diff --git a/src/testbed/gnunet-service-testbed_connectionpool.c 
b/src/testbed/gnunet-service-testbed_connectionpool.c
index d8461f8e2..e173a2349 100644
--- a/src/testbed/gnunet-service-testbed_connectionpool.c
+++ b/src/testbed/gnunet-service-testbed_connectionpool.c
@@ -11,7 +11,7 @@
   WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Affero General Public License for more details.
- 
+
   You should have received a copy of the GNU Affero General Public License
   along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
@@ -27,7 +27,7 @@
 #include "gnunet-service-testbed.h"
 #include "gnunet-service-testbed_connectionpool.h"
 #include "testbed_api_operations.h"
-#include "gnunet_transport_core_service.h"
+#include "gnunet_transport_service.h"
 
 /**
  * Redefine LOG with a changed log component string
@@ -35,14 +35,14 @@
 #ifdef LOG
 #undef LOG
 #endif
-#define LOG(kind,...)                                   \
+#define LOG(kind, ...) \
   GNUNET_log_from (kind, "testbed-connectionpool", __VA_ARGS__)
 
 
 /**
  * Time to expire a cache entry
  */
-#define CACHE_EXPIRY                            \
+#define CACHE_EXPIRY \
   GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 15)
 
 
@@ -107,8 +107,8 @@ struct PooledConnection
   struct GNUNET_PeerIdentity *peer_identity;
 
   /**
-   * The configuration of the peer. Should be not NULL as long as the 
core_handle
-   * or transport_handle are valid
+   * The configuration of the peer. Should be not NULL as long as the
+   * core_handle or transport_handle are valid
    */
   struct GNUNET_CONFIGURATION_Handle *cfg;
 
@@ -137,12 +137,12 @@ struct PooledConnection
   /**
    * The task to expire this connection from the connection pool
    */
-  struct GNUNET_SCHEDULER_Task * expire_task;
+  struct GNUNET_SCHEDULER_Task *expire_task;
 
   /**
    * The task to notify a waiting #GST_ConnectionPool_GetHandle object
    */
-  struct GNUNET_SCHEDULER_Task * notify_task;
+  struct GNUNET_SCHEDULER_Task *notify_task;
 
   /**
    * Number of active requests using this pooled connection
@@ -286,17 +286,16 @@ static void
 destroy_pooled_connection (struct PooledConnection *entry)
 {
   GNUNET_assert ((NULL == entry->head_notify) && (NULL == entry->tail_notify));
-  GNUNET_assert ((NULL == entry->head_waiting) && (NULL ==
-                                                   entry->tail_waiting));
+  GNUNET_assert ((NULL == entry->head_waiting) &&
+                 (NULL == entry->tail_waiting));
   GNUNET_assert (0 == entry->demand);
   expire_task_cancel (entry);
   if (entry->in_lru)
     GNUNET_CONTAINER_DLL_remove (head_lru, tail_lru, entry);
   if (entry->in_pool)
-    GNUNET_assert (GNUNET_OK ==
-                   GNUNET_CONTAINER_multihashmap32_remove (map,
-                                                           entry->index,
-                                                           entry));
+    GNUNET_assert (
+      GNUNET_OK ==
+      GNUNET_CONTAINER_multihashmap32_remove (map, entry->index, entry));
   if (NULL != entry->notify_task)
   {
     GNUNET_SCHEDULER_cancel (entry->notify_task);
@@ -370,12 +369,12 @@ static void
 add_to_lru (struct PooledConnection *entry)
 {
   GNUNET_assert (0 == entry->demand);
-  GNUNET_assert (!entry->in_lru);
+  GNUNET_assert (! entry->in_lru);
   GNUNET_CONTAINER_DLL_insert_tail (head_lru, tail_lru, entry);
   entry->in_lru = GNUNET_YES;
   GNUNET_assert (NULL == entry->expire_task);
-  entry->expire_task = GNUNET_SCHEDULER_add_delayed (CACHE_EXPIRY,
-                                                     &expire, entry);
+  entry->expire_task =
+    GNUNET_SCHEDULER_add_delayed (CACHE_EXPIRY, &expire, entry);
 }
 
 
@@ -404,7 +403,7 @@ search_waiting (const struct PooledConnection *entry,
       if (NULL == entry->handle_core)
         continue;
       if (NULL == entry->peer_identity)
-        continue;               /* CORE connection isn't ready yet */
+        continue; /* CORE connection isn't ready yet */
       break;
     case GST_CONNECTIONPOOL_SERVICE_TRANSPORT:
       if (NULL == entry->handle_transport)
@@ -425,7 +424,8 @@ search_waiting (const struct PooledConnection *entry,
  * A handle in the #PooledConnection object pointed by @a cls is ready and 
there
  * is a #GST_ConnectionPool_GetHandle object waiting in the waiting list.  This
  * function retrieves that object and calls the handle ready callback.  It
- * further schedules itself if there are similar waiting objects which can be 
notified.
+ * further schedules itself if there are similar waiting objects which can be
+ * notified.
  *
  * @param cls the #PooledConnection object
  */
@@ -443,23 +443,18 @@ connection_ready (void *cls)
   gh_next = NULL;
   if (NULL != gh->next)
     gh_next = search_waiting (entry, gh->next);
-  GNUNET_CONTAINER_DLL_remove (entry->head_waiting,
-                               entry->tail_waiting,
-                               gh);
+  GNUNET_CONTAINER_DLL_remove (entry->head_waiting, entry->tail_waiting, gh);
   gh->connection_ready_called = 1;
   if (NULL != gh_next)
-    entry->notify_task = GNUNET_SCHEDULER_add_now (&connection_ready,
-                                                   entry);
-  if ( (NULL != gh->target) &&
-       (NULL != gh->connect_notify_cb) )
+    entry->notify_task = GNUNET_SCHEDULER_add_now (&connection_ready, entry);
+  if ((NULL != gh->target) && (NULL != gh->connect_notify_cb))
   {
     GNUNET_CONTAINER_DLL_insert_tail (entry->head_notify,
                                       entry->tail_notify,
                                       gh);
     gh->notify_waiting = 1;
   }
-  LOG_DEBUG ("Connection ready for handle type %u\n",
-             gh->service);
+  LOG_DEBUG ("Connection ready for handle type %u\n", gh->service);
   gh->cb (gh->cb_cls,
           entry->handle_core,
           entry->handle_transport,
@@ -499,9 +494,7 @@ peer_connect_notify_cb (void *cls,
       gh = gh->next;
       continue;
     }
-    if (0 != memcmp (gh->target,
-                     peer,
-                     sizeof (struct GNUNET_PeerIdentity)))
+    if (0 != memcmp (gh->target, peer, sizeof (struct GNUNET_PeerIdentity)))
     {
       gh = gh->next;
       continue;
@@ -532,13 +525,11 @@ peer_connect_notify_cb (void *cls,
 static void *
 transport_peer_connect_notify_cb (void *cls,
                                   const struct GNUNET_PeerIdentity *peer,
-                                 struct GNUNET_MQ_Handle *mq)
+                                  struct GNUNET_MQ_Handle *mq)
 {
   struct PooledConnection *entry = cls;
 
-  peer_connect_notify_cb (entry,
-                          peer,
-                          GST_CONNECTIONPOOL_SERVICE_TRANSPORT);
+  peer_connect_notify_cb (entry, peer, GST_CONNECTIONPOOL_SERVICE_TRANSPORT);
   return NULL;
 }
 
@@ -555,16 +546,15 @@ opstart_get_handle_transport (void *cls)
   struct PooledConnection *entry = cls;
 
   GNUNET_assert (NULL != entry);
-  LOG_DEBUG ("Opening a transport connection to peer %u\n",
-             entry->index);
+  LOG_DEBUG ("Opening a transport connection to peer %u\n", entry->index);
   entry->handle_transport =
-      GNUNET_TRANSPORT_core_connect (entry->cfg,
-                                    NULL,
-                                    NULL,
-                                    entry,
-                                    &transport_peer_connect_notify_cb,
-                                    NULL,
-                                    NULL);
+    GNUNET_TRANSPORT_core_connect (entry->cfg,
+                                   NULL,
+                                   NULL,
+                                   entry,
+                                   &transport_peer_connect_notify_cb,
+                                   NULL,
+                                   NULL);
   if (NULL == entry->handle_transport)
   {
     GNUNET_break (0);
@@ -610,14 +600,12 @@ oprelease_get_handle_transport (void *cls)
  */
 static void *
 core_peer_connect_cb (void *cls,
-                     const struct GNUNET_PeerIdentity *peer,
+                      const struct GNUNET_PeerIdentity *peer,
                       struct GNUNET_MQ_Handle *mq)
 {
   struct PooledConnection *entry = cls;
 
-  peer_connect_notify_cb (entry,
-                          peer,
-                          GST_CONNECTIONPOOL_SERVICE_CORE);
+  peer_connect_notify_cb (entry, peer, GST_CONNECTIONPOOL_SERVICE_CORE);
   return (void *) peer;
 }
 
@@ -635,8 +623,7 @@ core_peer_connect_cb (void *cls,
  * @param my_identity ID of this peer, NULL if we failed
  */
 static void
-core_startup_cb (void *cls,
-                 const struct GNUNET_PeerIdentity *my_identity)
+core_startup_cb (void *cls, const struct GNUNET_PeerIdentity *my_identity)
 {
   struct PooledConnection *entry = cls;
 
@@ -672,15 +659,14 @@ opstart_get_handle_core (void *cls)
   struct PooledConnection *entry = cls;
 
   GNUNET_assert (NULL != entry);
-  LOG_DEBUG ("Opening a CORE connection to peer %u\n",
-             entry->index);
-  entry->handle_core
-    = GNUNET_CORE_connect (entry->cfg,
-                           entry,        /* closure */
-                           &core_startup_cb, /* core startup notify */
-                           &core_peer_connect_cb,    /* peer connect notify */
-                           NULL,     /* peer disconnect notify */
-                           NULL);
+  LOG_DEBUG ("Opening a CORE connection to peer %u\n", entry->index);
+  entry->handle_core =
+    GNUNET_CORE_connect (entry->cfg,
+                         entry, /* closure */
+                         &core_startup_cb, /* core startup notify */
+                         &core_peer_connect_cb, /* peer connect notify */
+                         NULL, /* peer disconnect notify */
+                         NULL);
 }
 
 
@@ -715,8 +701,7 @@ opstart_get_handle_ats_connectivity (void *cls)
 {
   struct PooledConnection *entry = cls;
 
-  entry->handle_ats_connectivity =
-    GNUNET_ATS_connectivity_init (entry->cfg);
+  entry->handle_ats_connectivity = GNUNET_ATS_connectivity_init (entry->cfg);
 }
 
 
@@ -749,9 +734,7 @@ oprelease_get_handle_ats_connectivity (void *cls)
  *         #GNUNET_NO if not.
  */
 static int
-cleanup_iterator (void *cls,
-                  uint32_t key,
-                  void *value)
+cleanup_iterator (void *cls, uint32_t key, void *value)
 {
   struct PooledConnection *entry = value;
 
@@ -789,10 +772,9 @@ GST_connection_pool_destroy ()
 
   if (NULL != map)
   {
-    GNUNET_assert (GNUNET_SYSERR !=
-                   GNUNET_CONTAINER_multihashmap32_iterate (map,
-                                                            &cleanup_iterator,
-                                                            NULL));
+    GNUNET_assert (
+      GNUNET_SYSERR !=
+      GNUNET_CONTAINER_multihashmap32_iterate (map, &cleanup_iterator, NULL));
     GNUNET_CONTAINER_multihashmap32_destroy (map);
     map = NULL;
   }
@@ -817,9 +799,9 @@ GST_connection_pool_destroy ()
  * @note @a connect_notify_cb will not be called if @a target is
  * already connected @a service level. Use
  * GNUNET_TRANSPORT_check_peer_connected() or a similar function from the
- * respective @a service's API to check if the target peer is already 
connected or
- * not. @a connect_notify_cb will be called only once or never (in case @a 
target
- * cannot be connected or is already connected).
+ * respective @a service's API to check if the target peer is already connected
+ * or not. @a connect_notify_cb will be called only once or never (in case @a
+ * target cannot be connected or is already connected).
  *
  * @param peer_id the index of the peer
  * @param cfg the configuration with which the transport handle has to be
@@ -828,7 +810,8 @@ GST_connection_pool_destroy ()
  * @param cb the callback to notify when the transport handle is available
  * @param cb_cls the closure for @a cb
  * @param target the peer identify of the peer whose connection to our 
TRANSPORT
- *          subsystem will be notified through the @a connect_notify_cb. Can 
be NULL
+ *          subsystem will be notified through the @a connect_notify_cb. Can be
+ * NULL
  * @param connect_notify_cb the callback to call when the @a target peer is
  *          connected. This callback will only be called once or never again 
(in
  *          case the target peer cannot be connected). Can be NULL
@@ -837,14 +820,15 @@ GST_connection_pool_destroy ()
  *           longer being used
  */
 struct GST_ConnectionPool_GetHandle *
-GST_connection_pool_get_handle (unsigned int peer_id,
-                                const struct GNUNET_CONFIGURATION_Handle *cfg,
-                                enum GST_ConnectionPool_Service service,
-                                GST_connection_pool_connection_ready_cb cb,
-                                void *cb_cls,
-                                const struct GNUNET_PeerIdentity *target,
-                                GST_connection_pool_peer_connect_notify 
connect_notify_cb,
-                                void *connect_notify_cb_cls)
+GST_connection_pool_get_handle (
+  unsigned int peer_id,
+  const struct GNUNET_CONFIGURATION_Handle *cfg,
+  enum GST_ConnectionPool_Service service,
+  GST_connection_pool_connection_ready_cb cb,
+  void *cb_cls,
+  const struct GNUNET_PeerIdentity *target,
+  GST_connection_pool_peer_connect_notify connect_notify_cb,
+  void *connect_notify_cb_cls)
 {
   struct GST_ConnectionPool_GetHandle *gh;
   struct PooledConnection *entry;
@@ -871,20 +855,17 @@ GST_connection_pool_get_handle (unsigned int peer_id,
     case GST_CONNECTIONPOOL_SERVICE_TRANSPORT:
       handle = entry->handle_transport;
       if (NULL != handle)
-        LOG_DEBUG ("Found TRANSPORT handle for peer %u\n",
-                   entry->index);
+        LOG_DEBUG ("Found TRANSPORT handle for peer %u\n", entry->index);
       break;
     case GST_CONNECTIONPOOL_SERVICE_CORE:
       handle = entry->handle_core;
       if (NULL != handle)
-        LOG_DEBUG ("Found CORE handle for peer %u\n",
-                   entry->index);
+        LOG_DEBUG ("Found CORE handle for peer %u\n", entry->index);
       break;
     case GST_CONNECTIONPOOL_SERVICE_ATS_CONNECTIVITY:
       handle = entry->handle_ats_connectivity;
       if (NULL != handle)
-        LOG_DEBUG ("Found ATS CONNECTIVITY handle for peer %u\n",
-                   entry->index);
+        LOG_DEBUG ("Found ATS CONNECTIVITY handle for peer %u\n", 
entry->index);
       break;
     }
   }
@@ -892,14 +873,15 @@ GST_connection_pool_get_handle (unsigned int peer_id,
   {
     entry = GNUNET_new (struct PooledConnection);
     entry->index = peer_id32;
-    if ((NULL != map)
-        && (GNUNET_CONTAINER_multihashmap32_size (map) < max_size))
+    if ((NULL != map) &&
+        (GNUNET_CONTAINER_multihashmap32_size (map) < max_size))
     {
       GNUNET_assert (GNUNET_OK ==
-                     GNUNET_CONTAINER_multihashmap32_put (map,
-                                                          entry->index,
-                                                          entry,
-                                                          
GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_FAST));
+                     GNUNET_CONTAINER_multihashmap32_put (
+                       map,
+                       entry->index,
+                       entry,
+                       GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_FAST));
       entry->in_pool = GNUNET_YES;
     }
     else
@@ -919,16 +901,14 @@ GST_connection_pool_get_handle (unsigned int peer_id,
   gh->connect_notify_cb = connect_notify_cb;
   gh->connect_notify_cb_cls = connect_notify_cb_cls;
   gh->service = service;
-  GNUNET_CONTAINER_DLL_insert (entry->head_waiting,
-                               entry->tail_waiting,
-                               gh);
+  GNUNET_CONTAINER_DLL_insert (entry->head_waiting, entry->tail_waiting, gh);
   if (NULL != handle)
   {
     if (NULL == entry->notify_task)
     {
       if (NULL != search_waiting (entry, entry->head_waiting))
-        entry->notify_task = GNUNET_SCHEDULER_add_now (&connection_ready,
-                                                       entry);
+        entry->notify_task =
+          GNUNET_SCHEDULER_add_now (&connection_ready, entry);
     }
     return gh;
   }
@@ -937,7 +917,7 @@ GST_connection_pool_get_handle (unsigned int peer_id,
   {
   case GST_CONNECTIONPOOL_SERVICE_TRANSPORT:
     if (NULL != entry->op_transport)
-      return gh;                /* Operation pending */
+      return gh; /* Operation pending */
     op = GNUNET_TESTBED_operation_create_ (entry,
                                            &opstart_get_handle_transport,
                                            &oprelease_get_handle_transport);
@@ -945,7 +925,7 @@ GST_connection_pool_get_handle (unsigned int peer_id,
     break;
   case GST_CONNECTIONPOOL_SERVICE_CORE:
     if (NULL != entry->op_core)
-      return gh;                /* Operation pending */
+      return gh; /* Operation pending */
     op = GNUNET_TESTBED_operation_create_ (entry,
                                            &opstart_get_handle_core,
                                            &oprelease_get_handle_core);
@@ -953,15 +933,15 @@ GST_connection_pool_get_handle (unsigned int peer_id,
     break;
   case GST_CONNECTIONPOOL_SERVICE_ATS_CONNECTIVITY:
     if (NULL != entry->op_ats_connectivity)
-      return gh;                /* Operation pending */
-    op = GNUNET_TESTBED_operation_create_ (entry,
-                                           
&opstart_get_handle_ats_connectivity,
-                                           
&oprelease_get_handle_ats_connectivity);
+      return gh; /* Operation pending */
+    op =
+      GNUNET_TESTBED_operation_create_ (entry,
+                                        &opstart_get_handle_ats_connectivity,
+                                        
&oprelease_get_handle_ats_connectivity);
     entry->op_ats_connectivity = op;
     break;
   }
-  GNUNET_TESTBED_operation_queue_insert_ (GST_opq_openfds,
-                                          op);
+  GNUNET_TESTBED_operation_queue_insert_ (GST_opq_openfds, op);
   GNUNET_TESTBED_operation_begin_wait_ (op);
   return gh;
 }
@@ -973,9 +953,9 @@ GST_connection_pool_get_handle (unsigned int peer_id,
  * #GST_ConnectionPool_GetHandle objects, it is left in the connection pool.  
If
  * no other objects are using the connection and the connection pool is not 
full
  * then it is placed in a LRU queue.  If the connection pool is full, then
- * connections from the LRU queue are evicted and closed to create place for 
this
- * connection.  If the connection pool if full and the LRU queue is empty, then
- * the connection is closed.
+ * connections from the LRU queue are evicted and closed to create place for
+ * this connection.  If the connection pool if full and the LRU queue is empty,
+ * then the connection is closed.
  *
  * @param gh the handle
  */
@@ -989,14 +969,13 @@ GST_connection_pool_get_handle_done (struct 
GST_ConnectionPool_GetHandle *gh)
   entry = gh->entry;
   LOG_DEBUG ("Cleaning up get handle %p for service %u, peer %u\n",
              gh,
-             gh->service, entry->index);
+             gh->service,
+             entry->index);
   if (! gh->connection_ready_called)
   {
-    GNUNET_CONTAINER_DLL_remove (entry->head_waiting,
-                                 entry->tail_waiting,
-                                 gh);
-    if ( (NULL == search_waiting (entry, entry->head_waiting)) &&
-         (NULL != entry->notify_task) )
+    GNUNET_CONTAINER_DLL_remove (entry->head_waiting, entry->tail_waiting, gh);
+    if ((NULL == search_waiting (entry, entry->head_waiting)) &&
+        (NULL != entry->notify_task))
     {
       GNUNET_SCHEDULER_cancel (entry->notify_task);
       entry->notify_task = NULL;
@@ -1004,22 +983,18 @@ GST_connection_pool_get_handle_done (struct 
GST_ConnectionPool_GetHandle *gh)
   }
   if (gh->notify_waiting)
   {
-    GNUNET_CONTAINER_DLL_remove (entry->head_notify,
-                                 entry->tail_notify,
-                                 gh);
+    GNUNET_CONTAINER_DLL_remove (entry->head_notify, entry->tail_notify, gh);
     gh->notify_waiting = 0;
   }
   GNUNET_free (gh);
   gh = NULL;
   GNUNET_assert (! entry->in_lru);
   if (! entry->in_pool)
-    GNUNET_CONTAINER_DLL_remove (head_not_pooled,
-                                 tail_not_pooled,
-                                 entry);
+    GNUNET_CONTAINER_DLL_remove (head_not_pooled, tail_not_pooled, entry);
   if (NULL != map)
   {
-    if (GNUNET_YES == GNUNET_CONTAINER_multihashmap32_contains (map,
-                                                                entry->index))
+    if (GNUNET_YES ==
+        GNUNET_CONTAINER_multihashmap32_contains (map, entry->index))
       goto unallocate;
     if (GNUNET_CONTAINER_multihashmap32_size (map) == max_size)
     {
@@ -1028,14 +1003,15 @@ GST_connection_pool_get_handle_done (struct 
GST_ConnectionPool_GetHandle *gh)
       destroy_pooled_connection (head_lru);
     }
     GNUNET_assert (GNUNET_OK ==
-                   GNUNET_CONTAINER_multihashmap32_put (map,
-                                                        entry->index,
-                                                        entry,
-                                                        
GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY));
+                   GNUNET_CONTAINER_multihashmap32_put (
+                     map,
+                     entry->index,
+                     entry,
+                     GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY));
     entry->in_pool = GNUNET_YES;
   }
 
- unallocate:
+unallocate:
   GNUNET_assert (0 < entry->demand);
   entry->demand--;
   if (0 != entry->demand)
diff --git a/src/testbed/gnunet-service-testbed_connectionpool.h 
b/src/testbed/gnunet-service-testbed_connectionpool.h
index ca4ea22ce..558918c30 100644
--- a/src/testbed/gnunet-service-testbed_connectionpool.h
+++ b/src/testbed/gnunet-service-testbed_connectionpool.h
@@ -11,7 +11,7 @@
   WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Affero General Public License for more details.
- 
+
   You should have received a copy of the GNU Affero General Public License
   along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
@@ -25,7 +25,7 @@
  */
 #include "gnunet_ats_service.h"
 #include "gnunet_core_service.h"
-#include "gnunet_transport_core_service.h"
+#include "gnunet_transport_service.h"
 
 /**
  * The request handle for obtaining a pooled connection
@@ -87,13 +87,13 @@ GST_connection_pool_destroy (void);
  *          cases, its value being NULL means that CORE connection has failed.
  * @param cfg configuration of the peer
  */
-typedef void
-(*GST_connection_pool_connection_ready_cb) (void *cls,
-                                            struct GNUNET_CORE_Handle *ch,
-                                            struct GNUNET_TRANSPORT_CoreHandle 
*th,
-                                            struct 
GNUNET_ATS_ConnectivityHandle *ac,
-                                            const struct GNUNET_PeerIdentity 
*peer_id,
-                                            const struct 
GNUNET_CONFIGURATION_Handle *cfg);
+typedef void (*GST_connection_pool_connection_ready_cb) (
+  void *cls,
+  struct GNUNET_CORE_Handle *ch,
+  struct GNUNET_TRANSPORT_CoreHandle *th,
+  struct GNUNET_ATS_ConnectivityHandle *ac,
+  const struct GNUNET_PeerIdentity *peer_id,
+  const struct GNUNET_CONFIGURATION_Handle *cfg);
 
 
 /**
@@ -104,9 +104,9 @@ typedef void
  *   callback
  * @param target the peer identity of the target peer
  */
-typedef void
-(*GST_connection_pool_peer_connect_notify) (void *cls,
-                                            const struct GNUNET_PeerIdentity 
*target);
+typedef void (*GST_connection_pool_peer_connect_notify) (
+  void *cls,
+  const struct GNUNET_PeerIdentity *target);
 
 
 /**
@@ -121,9 +121,9 @@ typedef void
  * @note @a connect_notify_cb will not be called if @a target is
  * already connected @a service level. Use
  * GNUNET_TRANSPORT_check_peer_connected() or a similar function from the
- * respective @a service's API to check if the target peer is already 
connected or
- * not. @a connect_notify_cb will be called only once or never (in case @a 
target
- * cannot be connected or is already connected).
+ * respective @a service's API to check if the target peer is already connected
+ * or not. @a connect_notify_cb will be called only once or never (in case @a
+ * target cannot be connected or is already connected).
  *
  * @param peer_id the index of the peer
  * @param cfg the configuration with which the transport handle has to be
@@ -132,7 +132,8 @@ typedef void
  * @param cb the callback to notify when the transport handle is available
  * @param cb_cls the closure for @a cb
  * @param target the peer identify of the peer whose connection to our 
TRANSPORT
- *          subsystem will be notified through the @a connect_notify_cb. Can 
be NULL
+ *          subsystem will be notified through the @a connect_notify_cb. Can be
+ * NULL
  * @param connect_notify_cb the callback to call when the @a target peer is
  *          connected. This callback will only be called once or never again 
(in
  *          case the target peer cannot be connected). Can be NULL
@@ -141,14 +142,15 @@ typedef void
  *           longer being used
  */
 struct GST_ConnectionPool_GetHandle *
-GST_connection_pool_get_handle (unsigned int peer_id,
-                                const struct GNUNET_CONFIGURATION_Handle *cfg,
-                                enum GST_ConnectionPool_Service service,
-                                GST_connection_pool_connection_ready_cb cb,
-                                void *cb_cls,
-                                const struct GNUNET_PeerIdentity *target,
-                                GST_connection_pool_peer_connect_notify 
connect_notify_cb,
-                                void *connect_notify_cb_cls);
+GST_connection_pool_get_handle (
+  unsigned int peer_id,
+  const struct GNUNET_CONFIGURATION_Handle *cfg,
+  enum GST_ConnectionPool_Service service,
+  GST_connection_pool_connection_ready_cb cb,
+  void *cb_cls,
+  const struct GNUNET_PeerIdentity *target,
+  GST_connection_pool_peer_connect_notify connect_notify_cb,
+  void *connect_notify_cb_cls);
 
 
 /**
@@ -157,9 +159,9 @@ GST_connection_pool_get_handle (unsigned int peer_id,
  * #GST_ConnectionPool_GetHandle objects, it is left in the connection pool.  
If
  * no other objects are using the connection and the connection pool is not 
full
  * then it is placed in a LRU queue.  If the connection pool is full, then
- * connections from the LRU queue are evicted and closed to create place for 
this
- * connection.  If the connection pool if full and the LRU queue is empty, then
- * the connection is closed.
+ * connections from the LRU queue are evicted and closed to create place for
+ * this connection.  If the connection pool if full and the LRU queue is empty,
+ * then the connection is closed.
  *
  * @param gh the handle
  */
diff --git a/src/transport/gnunet-service-tng.c 
b/src/transport/gnunet-service-tng.c
index c2922dd7e..825d45522 100644
--- a/src/transport/gnunet-service-tng.c
+++ b/src/transport/gnunet-service-tng.c
@@ -24,6 +24,11 @@
  *
  * TODO:
  * Implement next:
+ * - complete flow control push back from CORE via TRANSPORT to communicators:
+ *   + resume communicators in handle_client_recv_ok (see FIXME)
+ *   + count transmissions to CORE and suspend communicators if window is full
+ * - check flow control push back from TRANSPROT to CORE:
+ *   + check when to send ACKs
  * - change transport-core API to provide proper flow control in both
  *   directions, allow multiple messages per peer simultaneously (tag
  *   confirmations with unique message ID), and replace quota-out with
@@ -113,6 +118,16 @@
  */
 #define MAX_DV_DISCOVERY_SELECTION 16
 
+/**
+ * Window size. How many messages to the same target do we pass
+ * to CORE without a RECV_OK in between? Small values limit
+ * thoughput, large values will increase latency.
+ *
+ * FIXME-OPTIMIZE: find out what good values are experimentally,
+ * maybe set adaptively (i.e. to observed available bandwidth).
+ */
+#define RECV_WINDOW_SIZE 4
+
 /**
  * Minimum number of hops we should forward DV learn messages
  * even if they are NOT useful for us in hope of looping
@@ -1100,6 +1115,48 @@ struct PendingMessage;
  */
 struct DistanceVectorHop;
 
+/**
+ * A virtual link is another reachable peer that is known to CORE.  It
+ * can be either a `struct Neighbour` with at least one confirmed
+ * `struct Queue`, or a `struct DistanceVector` with at least one
+ * confirmed `struct DistanceVectorHop`.  With a virtual link we track
+ * data that is per neighbour that is not specific to how the
+ * connectivity is established.
+ */
+struct VirtualLink
+{
+  /**
+   * Identity of the peer at the other end of the link.
+   */
+  struct GNUNET_PeerIdentity target;
+
+  /**
+   * Task scheduled to possibly notfiy core that this peer is no
+   * longer counting as confirmed.  Runs the #core_visibility_check(),
+   * which checks that some DV-path or a queue exists that is still
+   * considered confirmed.
+   */
+  struct GNUNET_SCHEDULER_Task *visibility_task;
+
+  /**
+   * Neighbour used by this virtual link, NULL if @e dv is used.
+   */
+  struct Neighbour *n;
+
+  /**
+   * Distance vector used by this virtual link, NULL if @e n is used.
+   */
+  struct DistanceVector *dv;
+
+  /**
+   * How many more messages can we send to core before we exhaust
+   * the receive window of CORE for this peer? If this hits zero,
+   * we must tell communicators to stop providing us more messages
+   * for this peer.
+   */
+  unsigned int core_recv_window;
+};
+
 
 /**
  * Data structure kept when we are waiting for an acknowledgement.
@@ -1316,31 +1373,10 @@ struct DistanceVector
   struct GNUNET_SCHEDULER_Task *timeout_task;
 
   /**
-   * Task scheduled to possibly notfiy core that this queue is no longer
-   * counting as confirmed.  Runs the #core_queue_visibility_check().
-   */
-  struct GNUNET_SCHEDULER_Task *visibility_task;
-
-  /**
-   * Quota at which CORE is allowed to transmit to this peer
-   * (note that the value CORE should actually be told is this
-   *  value plus the respective value in `struct Neighbour`).
-   * Should match the sum of the quotas of all of the paths.
-   *
-   * FIXME: not yet set, tricky to get right given multiple paths,
-   *        many of which may be inactive! (=> Idea: measure???)
-   * FIXME: how do we set this value initially when we tell CORE?
-   *    Options: start at a minimum value or at literally zero?
-   *         (=> Current thought: clean would be zero!)
-   */
-  struct GNUNET_BANDWIDTH_Value32NBO quota_out;
-
-  /**
-   * Is one of the DV paths in this struct 'confirmed' and thus
-   * the cause for CORE to see this peer as connected? (Note that
-   * the same may apply to a `struct Neighbour` at the same time.)
+   * Do we have a confirmed working queue and are thus visible to
+   * CORE?  If so, this is the virtual link, otherwise NULL.
    */
-  int core_visible;
+  struct VirtualLink *link;
 };
 
 
@@ -1450,12 +1486,6 @@ struct Queue
    */
   struct GNUNET_SCHEDULER_Task *transmit_task;
 
-  /**
-   * Task scheduled to possibly notfiy core that this queue is no longer
-   * counting as confirmed.  Runs the #core_queue_visibility_check().
-   */
-  struct GNUNET_SCHEDULER_Task *visibility_task;
-
   /**
    * How long do *we* consider this @e address to be valid?  In the past or
    * zero if we have not yet validated it.  Can be updated based on
@@ -1642,11 +1672,6 @@ struct Neighbour
    */
   struct Queue *queue_tail;
 
-  /**
-   * Task run to cleanup pending messages that have exceeded their timeout.
-   */
-  struct GNUNET_SCHEDULER_Task *timeout_task;
-
   /**
    * Handle for an operation to fetch @e last_dv_learn_monotime information 
from
    * the PEERSTORE, or NULL.
@@ -1660,18 +1685,10 @@ struct Neighbour
   struct GNUNET_PEERSTORE_StoreContext *sc;
 
   /**
-   * Quota at which CORE is allowed to transmit to this peer
-   * (note that the value CORE should actually be told is this
-   *  value plus the respective value in `struct DistanceVector`).
-   * Should match the sum of the quotas of all of the queues.
-   *
-   * FIXME: not yet set, tricky to get right given multiple queues!
-   *        (=> Idea: measure???)
-   * FIXME: how do we set this value initially when we tell CORE?
-   *    Options: start at a minimum value or at literally zero?
-   *         (=> Current thought: clean would be zero!)
+   * Do we have a confirmed working queue and are thus visible to
+   * CORE?  If so, this is the virtual link, otherwise NULL.
    */
-  struct GNUNET_BANDWIDTH_Value32NBO quota_out;
+  struct VirtualLink *link;
 
   /**
    * Latest DVLearn monotonic time seen from this peer.  Initialized only
@@ -1679,17 +1696,6 @@ struct Neighbour
    */
   struct GNUNET_TIME_Absolute last_dv_learn_monotime;
 
-  /**
-   * What is the earliest timeout of any message in @e pending_msg_tail?
-   */
-  struct GNUNET_TIME_Absolute earliest_timeout;
-
-  /**
-   * Do we have a confirmed working queue and are thus visible to
-   * CORE?
-   */
-  int core_visible;
-
   /**
    * Do we have the lastest value for @e last_dv_learn_monotime from
    * PEERSTORE yet, or are we still waiting for a reply of PEERSTORE?
@@ -2416,6 +2422,12 @@ static struct GNUNET_CONTAINER_MultiPeerMap *dv_routes;
  */
 static struct GNUNET_CONTAINER_MultiPeerMap *validation_map;
 
+/**
+ * Map from PIDs to `struct VirtualLink` entries describing
+ * links CORE knows to exist.
+ */
+static struct GNUNET_CONTAINER_MultiPeerMap *links;
+
 /**
  * Map from challenges to `struct LearnLaunchEntry` values.
  */
@@ -2563,6 +2575,26 @@ free_ephemeral (struct EphemeralCacheEntry *ece)
 }
 
 
+/**
+ * Free virtual link.
+ *
+ * @param vl link data to free
+ */
+static void
+free_virtual_link (struct VirtualLink *vl)
+{
+  GNUNET_CONTAINER_multipeermap_remove (links, &vl->target, vl);
+  if (NULL != vl->visibility_task)
+  {
+    GNUNET_SCHEDULER_cancel (vl->visibility_task);
+    vl->visibility_task = NULL;
+  }
+  GNUNET_break (NULL == vl->n);
+  GNUNET_break (NULL == vl->dv);
+  GNUNET_free (vl);
+}
+
+
 /**
  * Free validation state.
  *
@@ -2684,8 +2716,6 @@ free_dv_route (struct DistanceVector *dv)
     GNUNET_assert (
       GNUNET_YES ==
       GNUNET_CONTAINER_multipeermap_remove (dv_routes, &dv->target, dv));
-    if (NULL != dv->visibility_task)
-      GNUNET_SCHEDULER_cancel (dv->visibility_task);
     if (NULL != dv->timeout_task)
       GNUNET_SCHEDULER_cancel (dv->timeout_task);
     GNUNET_free (dv);
@@ -2873,8 +2903,6 @@ free_neighbour (struct Neighbour *neighbour)
                  GNUNET_CONTAINER_multipeermap_remove (neighbours,
                                                        &neighbour->pid,
                                                        neighbour));
-  if (NULL != neighbour->timeout_task)
-    GNUNET_SCHEDULER_cancel (neighbour->timeout_task);
   if (NULL != neighbour->reassembly_map)
   {
     GNUNET_CONTAINER_multihashmap32_iterate (neighbour->reassembly_map,
@@ -2917,19 +2945,16 @@ free_neighbour (struct Neighbour *neighbour)
  *
  * @param tc client to inform (must be CORE client)
  * @param pid peer the connection is for
- * @param quota_out current quota for the peer
  */
 static void
 core_send_connect_info (struct TransportClient *tc,
-                        const struct GNUNET_PeerIdentity *pid,
-                        struct GNUNET_BANDWIDTH_Value32NBO quota_out)
+                        const struct GNUNET_PeerIdentity *pid)
 {
   struct GNUNET_MQ_Envelope *env;
   struct ConnectInfoMessage *cim;
 
   GNUNET_assert (CT_CORE == tc->type);
   env = GNUNET_MQ_msg (cim, GNUNET_MESSAGE_TYPE_TRANSPORT_CONNECT);
-  cim->quota_out = quota_out;
   cim->id = *pid;
   GNUNET_MQ_send (tc->mq, env);
 }
@@ -2939,11 +2964,9 @@ core_send_connect_info (struct TransportClient *tc,
  * Send message to CORE clients that we gained a connection
  *
  * @param pid peer the queue was for
- * @param quota_out current quota for the peer
  */
 static void
-cores_send_connect_info (const struct GNUNET_PeerIdentity *pid,
-                         struct GNUNET_BANDWIDTH_Value32NBO quota_out)
+cores_send_connect_info (const struct GNUNET_PeerIdentity *pid)
 {
   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
               "Informing CORE clients about connection to %s\n",
@@ -2952,7 +2975,7 @@ cores_send_connect_info (const struct GNUNET_PeerIdentity 
*pid,
   {
     if (CT_CORE != tc->type)
       continue;
-    core_send_connect_info (tc, pid, quota_out);
+    core_send_connect_info (tc, pid);
   }
 }
 
@@ -3059,13 +3082,43 @@ schedule_transmit_on_queue (struct Queue *queue, int 
inside_job)
 
 
 /**
- * Check whether the CORE visibility of @a n changed. If so,
- * check whether we need to notify CORE.
+ * Task run to check whether the hops of the @a cls still
+ * are validated, or if we need to core about disconnection.
  *
- * @param n neighbour to perform the check for
+ * @param cls a `struct VirtualLink`
  */
 static void
-update_neighbour_core_visibility (struct Neighbour *n);
+check_link_down (void *cls)
+{
+  struct VirtualLink *vl = cls;
+  struct DistanceVector *dv = vl->dv;
+  struct Neighbour *n = vl->n;
+  struct GNUNET_TIME_Absolute dvh_timeout;
+  struct GNUNET_TIME_Absolute q_timeout;
+
+  vl->visibility_task = NULL;
+  dvh_timeout = GNUNET_TIME_UNIT_ZERO_ABS;
+  for (struct DistanceVectorHop *pos = dv->dv_head; NULL != pos;
+       pos = pos->next_dv)
+    dvh_timeout = GNUNET_TIME_absolute_max (dvh_timeout, 
pos->path_valid_until);
+  if (0 == GNUNET_TIME_absolute_get_remaining (dvh_timeout).rel_value_us)
+    vl->dv = NULL;
+  q_timeout = GNUNET_TIME_UNIT_ZERO_ABS;
+  for (struct Queue *q = n->queue_head; NULL != q; q = q->next_neighbour)
+    q_timeout = GNUNET_TIME_absolute_max (q_timeout, q->validated_until);
+  if (0 == GNUNET_TIME_absolute_get_remaining (dvh_timeout).rel_value_us)
+    vl->n = NULL;
+  if ((NULL == vl->n) && (NULL == vl->dv))
+  {
+    cores_send_disconnect_info (&dv->target);
+    free_virtual_link (vl);
+    return;
+  }
+  vl->visibility_task =
+    GNUNET_SCHEDULER_add_at (GNUNET_TIME_absolute_max (q_timeout, dvh_timeout),
+                             &check_link_down,
+                             vl);
+}
 
 
 /**
@@ -3083,17 +3136,13 @@ free_queue (struct Queue *queue)
   struct QueueEntry *qe;
   int maxxed;
   struct PendingAcknowledgement *pa;
+  struct VirtualLink *vl;
 
   if (NULL != queue->transmit_task)
   {
     GNUNET_SCHEDULER_cancel (queue->transmit_task);
     queue->transmit_task = NULL;
   }
-  if (NULL != queue->visibility_task)
-  {
-    GNUNET_SCHEDULER_cancel (queue->visibility_task);
-    queue->visibility_task = NULL;
-  }
   while (NULL != (pa = queue->pa_head))
   {
     GNUNET_CONTAINER_MDLL_remove (queue, queue->pa_head, queue->pa_tail, pa);
@@ -3139,9 +3188,12 @@ free_queue (struct Queue *queue)
   notify_monitors (&neighbour->pid, queue->address, queue->nt, &me);
   GNUNET_free (queue);
 
-  update_neighbour_core_visibility (neighbour);
-  cores_send_disconnect_info (&neighbour->pid);
-
+  vl = GNUNET_CONTAINER_multipeermap_get (links, &neighbour->pid);
+  if ((NULL != vl) && (neighbour == vl->n))
+  {
+    GNUNET_SCHEDULER_cancel (vl->visibility_task);
+    check_link_down (vl);
+  }
   if (NULL == neighbour->queue_head)
   {
     free_neighbour (neighbour);
@@ -3281,12 +3333,12 @@ notify_client_connect_info (void *cls,
                             void *value)
 {
   struct TransportClient *tc = cls;
-  struct Neighbour *neighbour = value;
 
+  (void) value;
   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
               "Telling new CORE client about existing connection to %s\n",
               GNUNET_i2s (pid));
-  core_send_connect_info (tc, pid, neighbour->quota_out);
+  core_send_connect_info (tc, pid);
   return GNUNET_OK;
 }
 
@@ -3469,9 +3521,6 @@ client_send_response (struct PendingMessage *pm,
   if (NULL != tc)
   {
     env = GNUNET_MQ_msg (som, GNUNET_MESSAGE_TYPE_TRANSPORT_SEND_OK);
-    som->success = htonl ((uint32_t) success);
-    som->bytes_msg = htons (pm->bytes_msg);
-    som->bytes_physical = htonl (bytes_physical);
     som->peer = target->pid;
     GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
                 "Confirming %s transmission of %u/%u bytes to %s\n",
@@ -3485,45 +3534,6 @@ client_send_response (struct PendingMessage *pm,
 }
 
 
-/**
- * Checks the message queue for a neighbour for messages that have timed
- * out and purges them.
- *
- * @param cls a `struct Neighbour`
- */
-static void
-check_queue_timeouts (void *cls)
-{
-  struct Neighbour *n = cls;
-  struct PendingMessage *pm;
-  struct GNUNET_TIME_Absolute now;
-  struct GNUNET_TIME_Absolute earliest_timeout;
-
-  n->timeout_task = NULL;
-  earliest_timeout = GNUNET_TIME_UNIT_FOREVER_ABS;
-  now = GNUNET_TIME_absolute_get ();
-  for (struct PendingMessage *pos = n->pending_msg_head; NULL != pos; pos = pm)
-  {
-    pm = pos->next_neighbour;
-    if (pos->timeout.abs_value_us <= now.abs_value_us)
-    {
-      GNUNET_STATISTICS_update (GST_stats,
-                                "# messages dropped (timeout before 
confirmation)",
-                                1,
-                                GNUNET_NO);
-      client_send_response (pm, GNUNET_NO, 0);
-      continue;
-    }
-    earliest_timeout =
-      GNUNET_TIME_absolute_min (earliest_timeout, pos->timeout);
-  }
-  n->earliest_timeout = earliest_timeout;
-  if (NULL != n->pending_msg_head)
-    n->timeout_task =
-      GNUNET_SCHEDULER_add_at (earliest_timeout, &check_queue_timeouts, n);
-}
-
-
 /**
  * Create a DV Box message.
  *
@@ -3689,30 +3699,18 @@ handle_client_send (void *cls, const struct 
OutboundMessage *obm)
   const void *payload;
   size_t payload_size;
   struct TransportDVBoxMessage *dvb;
+  struct VirtualLink *vl;
 
   GNUNET_assert (CT_CORE == tc->type);
   obmm = (const struct GNUNET_MessageHeader *) &obm[1];
   bytes_msg = ntohs (obmm->size);
-  target = lookup_neighbour (&obm->peer);
-  if (NULL == target)
-    dv = GNUNET_CONTAINER_multipeermap_get (dv_routes, &obm->peer);
-  else
-    dv = NULL;
-  if ((NULL == target) && ((NULL == dv) || (GNUNET_NO == dv->core_visible)))
+  vl = GNUNET_CONTAINER_multipeermap_get (links, &obm->peer);
+  if (NULL == vl)
   {
     /* Failure: don't have this peer as a neighbour (anymore).
        Might have gone down asynchronously, so this is NOT
        a protocol violation by CORE. Still count the event,
        as this should be rare. */
-    struct GNUNET_MQ_Envelope *env;
-    struct SendOkMessage *som;
-
-    env = GNUNET_MQ_msg (som, GNUNET_MESSAGE_TYPE_TRANSPORT_SEND_OK);
-    som->success = htonl (GNUNET_SYSERR);
-    som->bytes_msg = htonl (bytes_msg);
-    som->bytes_physical = htonl (0);
-    som->peer = obm->peer;
-    GNUNET_MQ_send (tc->mq, env);
     GNUNET_SERVICE_client_continue (tc->client);
     GNUNET_STATISTICS_update (GST_stats,
                               "# messages dropped (neighbour unknown)",
@@ -3720,6 +3718,12 @@ handle_client_send (void *cls, const struct 
OutboundMessage *obm)
                               GNUNET_NO);
     return;
   }
+  target = lookup_neighbour (&obm->peer);
+  if (NULL == target)
+    dv = GNUNET_CONTAINER_multipeermap_get (dv_routes, &obm->peer);
+  else
+    dv = NULL;
+  GNUNET_assert ((NULL != target) || (NULL != dv));
   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
               "Sending %u bytes to %s using %s\n",
               bytes_msg,
@@ -3756,8 +3760,6 @@ handle_client_send (void *cls, const struct 
OutboundMessage *obm)
   pm->client = tc;
   pm->target = target;
   pm->bytes_msg = payload_size;
-  pm->timeout =
-    GNUNET_TIME_relative_to_absolute (GNUNET_TIME_relative_ntoh 
(obm->timeout));
   memcpy (&pm[1], payload, payload_size);
   GNUNET_free_non_null (dvb);
   dvb = NULL;
@@ -3777,15 +3779,6 @@ handle_client_send (void *cls, const struct 
OutboundMessage *obm)
                                 tc->details.core.pending_msg_head,
                                 tc->details.core.pending_msg_tail,
                                 pm);
-  if (target->earliest_timeout.abs_value_us > pm->timeout.abs_value_us)
-  {
-    target->earliest_timeout.abs_value_us = pm->timeout.abs_value_us;
-    if (NULL != target->timeout_task)
-      GNUNET_SCHEDULER_cancel (target->timeout_task);
-    target->timeout_task = GNUNET_SCHEDULER_add_at (target->earliest_timeout,
-                                                    &check_queue_timeouts,
-                                                    target);
-  }
   if (! was_empty)
     return; /* all queues must already be busy */
   for (struct Queue *queue = target->queue_head; NULL != queue;
@@ -3833,6 +3826,47 @@ check_communicator_available (
 }
 
 
+/**
+ * Client confirms that it is done handling message(s) to a particular
+ * peer. We may now provide more messages to CORE for this peer.
+ *
+ * Notifies the respective queues that more messages can now be received.
+ *
+ * @param cls the client
+ * @param rom the message that was sent
+ */
+static void
+handle_client_recv_ok (void *cls, const struct RecvOkMessage *rom)
+{
+  struct TransportClient *tc = cls;
+  struct VirtualLink *vl;
+  uint32_t delta;
+
+  if (CT_CORE != tc->type)
+  {
+    GNUNET_break (0);
+    GNUNET_SERVICE_client_drop (tc->client);
+    return;
+  }
+  vl = GNUNET_CONTAINER_multipeermap_get (links, &rom->peer);
+  if (NULL == vl)
+  {
+    GNUNET_STATISTICS_update (GST_stats,
+                              "# RECV_OK dropped: virtual link unknown",
+                              1,
+                              GNUNET_NO);
+    GNUNET_SERVICE_client_continue (tc->client);
+    return;
+  }
+  delta = ntohl (rom->increase_window_delta);
+  vl->core_recv_window += delta;
+  if (delta == vl->core_recv_window)
+  {
+    // FIXME: resume communicators!
+  }
+}
+
+
 /**
  * Communicator started.  Process the request.
  *
@@ -4090,20 +4124,18 @@ route_via_neighbour (const struct Neighbour *n,
   for (struct Queue *pos = n->queue_head; NULL != pos;
        pos = pos->next_neighbour)
   {
-    /* Count the queue with the visibility task in all cases, as
-       otherwise we may end up with no queues just because the
-       time for the visibility task just expired but the scheduler
-       just ran this task first */
     if ((0 == (options & RMO_UNCONFIRMED_ALLOWED)) ||
-        (pos->validated_until.abs_value_us > now.abs_value_us) ||
-        (NULL != pos->visibility_task))
+        (pos->validated_until.abs_value_us > now.abs_value_us))
       candidates++;
   }
   if (0 == candidates)
   {
-    /* Given that we above check for pos->visibility task,
-       this should be strictly impossible. */
-    GNUNET_break (0);
+    /* This can happen rarely if the last confirmed queue timed
+       out just as we were beginning to process this message. */
+    GNUNET_STATISTICS_update (GST_stats,
+                              "# route selection failed (all no valid queue)",
+                              1,
+                              GNUNET_NO);
     return;
   }
   sel1 = GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK, candidates);
@@ -4115,12 +4147,8 @@ route_via_neighbour (const struct Neighbour *n,
   for (struct Queue *pos = n->queue_head; NULL != pos;
        pos = pos->next_neighbour)
   {
-    /* Count the queue with the visibility task in all cases, as
-       otherwise we may end up with no queues just because the
-       time for the visibility task just expired but the scheduler
-       just ran this task first */
-    if ((pos->validated_until.abs_value_us > now.abs_value_us) ||
-        (NULL != pos->visibility_task))
+    if ((0 == (options & RMO_UNCONFIRMED_ALLOWED)) ||
+        (pos->validated_until.abs_value_us > now.abs_value_us))
     {
       if ((sel1 == candidates) || (sel2 == candidates))
         queue_send_msg (pos, NULL, hdr, ntohs (hdr->size));
@@ -4197,21 +4225,21 @@ route_message (const struct GNUNET_PeerIdentity *target,
                struct GNUNET_MessageHeader *hdr,
                enum RouteMessageOptions options)
 {
+  struct VirtualLink *vl;
   struct Neighbour *n;
   struct DistanceVector *dv;
 
-  n = lookup_neighbour (target);
-  dv = (0 != (options & RMO_DV_ALLOWED))
-         ? GNUNET_CONTAINER_multipeermap_get (dv_routes, target)
-         : NULL;
+  vl = GNUNET_CONTAINER_multipeermap_get (links, target);
+  n = vl->n;
+  dv = (0 != (options & RMO_DV_ALLOWED)) ? vl->dv : NULL;
   if (0 == (options & RMO_UNCONFIRMED_ALLOWED))
   {
     /* if confirmed is required, and we do not have anything
        confirmed, drop respective options */
-    if ((NULL != n) && (GNUNET_NO == n->core_visible))
-      n = NULL;
-    if ((NULL != dv) && (GNUNET_NO == dv->core_visible))
-      dv = NULL;
+    if (NULL == n)
+      n = lookup_neighbour (target);
+    if ((NULL == dv) && (0 != (options & RMO_DV_ALLOWED)))
+      dv = GNUNET_CONTAINER_multipeermap_get (dv_routes, target);
   }
   if ((NULL == n) && (NULL == dv))
   {
@@ -5758,40 +5786,6 @@ path_cleanup_cb (void *cls)
     GNUNET_SCHEDULER_add_at (pos->timeout, &path_cleanup_cb, dv);
 }
 
-/**
- * Task run to check whether the hops of the @a cls still
- * are validated, or if we need to core about disconnection.
- *
- * @param cls a `struct DistanceVector` (with core_visible set!)
- */
-static void
-check_dv_path_down (void *cls)
-{
-  struct DistanceVector *dv = cls;
-  struct Neighbour *n;
-
-  dv->visibility_task = NULL;
-  GNUNET_assert (GNUNET_YES == dv->core_visible);
-  for (struct DistanceVectorHop *pos = dv->dv_head; NULL != pos;
-       pos = pos->next_dv)
-  {
-    if (0 <
-        GNUNET_TIME_absolute_get_remaining 
(pos->path_valid_until).rel_value_us)
-    {
-      dv->visibility_task = GNUNET_SCHEDULER_add_at (pos->path_valid_until,
-                                                     &check_dv_path_down,
-                                                     dv);
-      return;
-    }
-  }
-  /* all paths invalid, make dv core-invisible */
-  dv->core_visible = GNUNET_NO;
-  n = lookup_neighbour (&dv->target);
-  if ((NULL != n) && (GNUNET_YES == n->core_visible))
-    return; /* no need to tell core, connection still up! */
-  cores_send_disconnect_info (&dv->target);
-}
-
 
 /**
  * The @a hop is a validated path to the respective target
@@ -5804,22 +5798,30 @@ static void
 activate_core_visible_dv_path (struct DistanceVectorHop *hop)
 {
   struct DistanceVector *dv = hop->dv;
-  struct Neighbour *n;
-
-  GNUNET_assert (GNUNET_NO == dv->core_visible);
-  GNUNET_assert (NULL == dv->visibility_task);
+  struct VirtualLink *vl;
 
-  dv->core_visible = GNUNET_YES;
-  dv->visibility_task =
-    GNUNET_SCHEDULER_add_at (hop->path_valid_until, &check_dv_path_down, dv);
-  n = lookup_neighbour (&dv->target);
-  if ((NULL != n) && (GNUNET_YES == n->core_visible))
-    return; /* no need to tell core, connection already up! */
-  cores_send_connect_info (&dv->target,
-                           (NULL != n)
-                             ? GNUNET_BANDWIDTH_value_sum (n->quota_out,
-                                                           dv->quota_out)
-                             : dv->quota_out);
+  vl = GNUNET_CONTAINER_multipeermap_get (links, &dv->target);
+  if (NULL != vl)
+  {
+    /* Link was already up, remember dv is also now available and we are done 
*/
+    vl->dv = dv;
+    return;
+  }
+  vl = GNUNET_new (struct VirtualLink);
+  vl->target = dv->target;
+  vl->dv = dv;
+  vl->core_recv_window = RECV_WINDOW_SIZE;
+  vl->visibility_task =
+    GNUNET_SCHEDULER_add_at (hop->path_valid_until, &check_link_down, vl);
+  GNUNET_break (GNUNET_YES ==
+                GNUNET_CONTAINER_multipeermap_put (
+                  links,
+                  &vl->target,
+                  vl,
+                  GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY));
+  /* We lacked a confirmed connection to the target
+     before, so tell CORE about it (finally!) */
+  cores_send_connect_info (&dv->target);
 }
 
 
@@ -5934,9 +5936,8 @@ learn_dv_path (const struct GNUNET_PeerIdentity *path,
           GNUNET_TIME_absolute_max (pos->path_valid_until, path_valid_until);
         GNUNET_CONTAINER_MDLL_remove (dv, dv->dv_head, dv->dv_tail, pos);
         GNUNET_CONTAINER_MDLL_insert (dv, dv->dv_head, dv->dv_tail, pos);
-        if ((GNUNET_NO == dv->core_visible) &&
-            (0 < GNUNET_TIME_absolute_get_remaining (path_valid_until)
-                   .rel_value_us))
+        if (0 <
+            GNUNET_TIME_absolute_get_remaining (path_valid_until).rel_value_us)
           activate_core_visible_dv_path (pos);
         if (last_timeout.rel_value_us <
             GNUNET_TIME_relative_subtract (DV_PATH_VALIDITY_TIMEOUT,
@@ -5976,8 +5977,7 @@ learn_dv_path (const struct GNUNET_PeerIdentity *path,
                                 next_hop->dv_head,
                                 next_hop->dv_tail,
                                 hop);
-  if ((GNUNET_NO == dv->core_visible) &&
-      (0 < GNUNET_TIME_absolute_get_remaining (path_valid_until).rel_value_us))
+  if (0 < GNUNET_TIME_absolute_get_remaining (path_valid_until).rel_value_us)
     activate_core_visible_dv_path (hop);
   return GNUNET_YES;
 }
@@ -6942,75 +6942,6 @@ find_queue (const struct GNUNET_PeerIdentity *pid, const 
char *address)
 }
 
 
-/**
- * Task run periodically to check whether the validity of the given queue has
- * run its course. If so, finds either another queue to take over, or clears
- * the neighbour's `core_visible` flag. In the latter case, gives DV routes a
- * chance to take over, and if that fails, notifies CORE about the disconnect.
- *
- * @param cls a `struct Queue`
- */
-static void
-core_queue_visibility_check (void *cls)
-{
-  struct Queue *q = cls;
-
-  q->visibility_task = NULL;
-  if (0 != GNUNET_TIME_absolute_get_remaining 
(q->validated_until).rel_value_us)
-  {
-    q->visibility_task = GNUNET_SCHEDULER_add_at (q->validated_until,
-                                                  &core_queue_visibility_check,
-                                                  q);
-    return;
-  }
-  update_neighbour_core_visibility (q->neighbour);
-}
-
-
-/**
- * Check whether the CORE visibility of @a n should change.  Finds either a
- * queue to preserve the visibility, or clears the neighbour's `core_visible`
- * flag. In the latter case, gives DV routes a chance to take over, and if
- * that fails, notifies CORE about the disconnect.  If so, check whether we
- * need to notify CORE.
- *
- * @param n neighbour to perform the check for
- */
-static void
-update_neighbour_core_visibility (struct Neighbour *n)
-{
-  struct DistanceVector *dv;
-
-  GNUNET_assert (GNUNET_YES == n->core_visible);
-  /* Check if _any_ queue of this neighbour is still valid, if so, schedule
-     the #core_queue_visibility_check() task for that queue */
-  for (struct Queue *q = n->queue_head; NULL != q; q = q->next_neighbour)
-  {
-    if (0 !=
-        GNUNET_TIME_absolute_get_remaining (q->validated_until).rel_value_us)
-    {
-      /* found a valid queue, use this one */
-      q->visibility_task =
-        GNUNET_SCHEDULER_add_at (q->validated_until,
-                                 &core_queue_visibility_check,
-                                 q);
-      return;
-    }
-  }
-  n->core_visible = GNUNET_NO;
-
-  /* Check if _any_ DV route to this neighbour is currently
-     valid, if so, do NOT tell core about the loss of direct
-     connectivity (DV still counts!) */
-  dv = GNUNET_CONTAINER_multipeermap_get (dv_routes, &n->pid);
-  if (GNUNET_YES == dv->core_visible)
-    return;
-  /* Nothing works anymore, need to tell CORE about the loss of
-     connectivity! */
-  cores_send_disconnect_info (&n->pid);
-}
-
-
 /**
  * Communicator gave us a transport address validation response.  Process the
  * request.
@@ -7030,8 +6961,8 @@ handle_validation_response (
                                             .vs = NULL};
   struct GNUNET_TIME_Absolute origin_time;
   struct Queue *q;
-  struct DistanceVector *dv;
   struct Neighbour *n;
+  struct VirtualLink *vl;
 
   /* check this is one of our challenges */
   (void) GNUNET_CONTAINER_multipeermap_get_multiple (validation_map,
@@ -7129,24 +7060,28 @@ handle_validation_response (
   q->validated_until = vs->validated_until;
   q->pd.aged_rtt = vs->validation_rtt;
   n = q->neighbour;
-  if (GNUNET_NO != n->core_visible)
-    return; /* nothing changed, we are done here */
-  n->core_visible = GNUNET_YES;
-  q->visibility_task = GNUNET_SCHEDULER_add_at (q->validated_until,
-                                                &core_queue_visibility_check,
-                                                q);
-  /* Check if _any_ DV route to this neighbour is
-     currently valid, if so, do NOT tell core anything! */
-  dv = GNUNET_CONTAINER_multipeermap_get (dv_routes, &n->pid);
-  if ((NULL != dv) && (GNUNET_YES == dv->core_visible))
-    return; /* nothing changed, done */
-  /* We lacked a confirmed connection to the neighbour
+  vl = GNUNET_CONTAINER_multipeermap_get (links, &vs->pid);
+  if (NULL != vl)
+  {
+    /* Link was already up, remember n is also now available and we are done */
+    vl->n = n;
+    return;
+  }
+  vl = GNUNET_new (struct VirtualLink);
+  vl->target = n->pid;
+  vl->n = n;
+  vl->core_recv_window = RECV_WINDOW_SIZE;
+  vl->visibility_task =
+    GNUNET_SCHEDULER_add_at (q->validated_until, &check_link_down, vl);
+  GNUNET_break (GNUNET_YES ==
+                GNUNET_CONTAINER_multipeermap_put (
+                  links,
+                  &vl->target,
+                  vl,
+                  GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY));
+  /* We lacked a confirmed connection to the target
      before, so tell CORE about it (finally!) */
-  cores_send_connect_info (&n->pid,
-                           (NULL != dv)
-                             ? GNUNET_BANDWIDTH_value_sum (dv->quota_out,
-                                                           n->quota_out)
-                             : n->quota_out);
+  cores_send_connect_info (&n->pid);
 }
 
 
@@ -8256,7 +8191,6 @@ handle_add_queue_message (void *cls,
   if (NULL == neighbour)
   {
     neighbour = GNUNET_new (struct Neighbour);
-    neighbour->earliest_timeout = GNUNET_TIME_UNIT_FOREVER_ABS;
     neighbour->pid = aqm->receiver;
     GNUNET_assert (GNUNET_OK ==
                    GNUNET_CONTAINER_multipeermap_put (
@@ -8872,8 +8806,12 @@ do_shutdown (void *cls)
                                           NULL);
   GNUNET_CONTAINER_multishortmap_destroy (pending_acks);
   pending_acks = NULL;
+  GNUNET_break (0 == GNUNET_CONTAINER_multipeermap_size (neighbours));
   GNUNET_CONTAINER_multipeermap_destroy (neighbours);
   neighbours = NULL;
+  GNUNET_break (0 == GNUNET_CONTAINER_multipeermap_size (links));
+  GNUNET_CONTAINER_multipeermap_destroy (links);
+  links = NULL;
   GNUNET_CONTAINER_multipeermap_iterate (backtalkers,
                                          &free_backtalker_cb,
                                          NULL);
@@ -8926,6 +8864,7 @@ run (void *cls,
   pending_acks = GNUNET_CONTAINER_multishortmap_create (32768, GNUNET_YES);
   ack_cummulators = GNUNET_CONTAINER_multipeermap_create (256, GNUNET_YES);
   neighbours = GNUNET_CONTAINER_multipeermap_create (1024, GNUNET_YES);
+  links = GNUNET_CONTAINER_multipeermap_create (512, GNUNET_YES);
   dv_routes = GNUNET_CONTAINER_multipeermap_create (1024, GNUNET_YES);
   ephemeral_map = GNUNET_CONTAINER_multipeermap_create (32, GNUNET_YES);
   ephemeral_heap =
@@ -8995,6 +8934,10 @@ GNUNET_SERVICE_MAIN (
                          GNUNET_MESSAGE_TYPE_TRANSPORT_SEND,
                          struct OutboundMessage,
                          NULL),
+  GNUNET_MQ_hd_fixed_size (client_recv_ok,
+                           GNUNET_MESSAGE_TYPE_TRANSPORT_RECV_OK,
+                           struct RecvOkMessage,
+                           NULL),
   /* communication with communicators */
   GNUNET_MQ_hd_var_size (communicator_available,
                          GNUNET_MESSAGE_TYPE_TRANSPORT_NEW_COMMUNICATOR,
diff --git a/src/transport/gnunet-transport-profiler.c 
b/src/transport/gnunet-transport-profiler.c
index 9160a78b2..89f5b4108 100644
--- a/src/transport/gnunet-transport-profiler.c
+++ b/src/transport/gnunet-transport-profiler.c
@@ -32,7 +32,6 @@
 #include "gnunet_protocols.h"
 #include "gnunet_ats_service.h"
 #include "gnunet_transport_service.h"
-#include "gnunet_transport_core_service.h"
 
 
 struct Iteration
@@ -54,7 +53,8 @@ struct Iteration
 /**
  * Timeout for a connections
  */
-#define CONNECT_TIMEOUT GNUNET_TIME_relative_multiply 
(GNUNET_TIME_UNIT_SECONDS, 30)
+#define CONNECT_TIMEOUT \
+  GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 30)
 
 /**
  * Benchmarking block size in bye
@@ -214,15 +214,16 @@ shutdown_task (void *cls)
     {
       inext = icur->next;
       icur->rate = ((benchmark_count * benchmark_size) / 1024) /
-          ((float) icur->dur.rel_value_us / (1000 * 1000));
+                   ((float) icur->dur.rel_value_us / (1000 * 1000));
       if (verbosity > 0)
-        FPRINTF (stdout, _("%llu B in %llu ms == %.2f KB/s!\n"),
-            ((long long unsigned int) benchmark_count * benchmark_size),
-            ((long long unsigned int) icur->dur.rel_value_us / 1000),
-            (float) icur->rate);
+        FPRINTF (stdout,
+                 _ ("%llu B in %llu ms == %.2f KB/s!\n"),
+                 ((long long unsigned int) benchmark_count * benchmark_size),
+                 ((long long unsigned int) icur->dur.rel_value_us / 1000),
+                 (float) icur->rate);
 
       avg_duration += icur->dur.rel_value_us / (1000);
-      avg_rate  += icur->rate;
+      avg_rate += icur->rate;
       iterations++;
     }
     if (0 == iterations)
@@ -238,19 +239,17 @@ shutdown_task (void *cls)
     while (NULL != (icur = inext))
     {
       inext = icur->next;
-      stddev_rate += ((icur->rate-avg_rate) *
-          (icur->rate-avg_rate));
+      stddev_rate += ((icur->rate - avg_rate) * (icur->rate - avg_rate));
       stddev_duration += (((icur->dur.rel_value_us / 1000) - avg_duration) *
-          ((icur->dur.rel_value_us / 1000) - avg_duration));
-
+                          ((icur->dur.rel_value_us / 1000) - avg_duration));
     }
     /* Calculate standard deviation rate */
     stddev_rate = stddev_rate / iterations;
-    stddev_rate = sqrtf(stddev_rate);
+    stddev_rate = sqrtf (stddev_rate);
 
     /* Calculate standard deviation duration */
     stddev_duration = stddev_duration / iterations;
-    stddev_duration = sqrtf(stddev_duration);
+    stddev_duration = sqrtf (stddev_duration);
 
     /* Output */
     FPRINTF (stdout,
@@ -266,9 +265,7 @@ shutdown_task (void *cls)
     while (NULL != (icur = inext))
     {
       inext = icur->next;
-      GNUNET_CONTAINER_DLL_remove (ihead,
-                                   itail,
-                                   icur);
+      GNUNET_CONTAINER_DLL_remove (ihead, itail, icur);
 
       FPRINTF (stdout,
                ";%llu;%.2f",
@@ -316,27 +313,19 @@ send_msg (void *cls)
 
   if (NULL == mq)
     return;
-  env = GNUNET_MQ_msg_extra (m,
-                            benchmark_size,
-                            GNUNET_MESSAGE_TYPE_DUMMY);
-  memset (&m[1],
-         52,
-         benchmark_size - sizeof(struct GNUNET_MessageHeader));
-  
+  env = GNUNET_MQ_msg_extra (m, benchmark_size, GNUNET_MESSAGE_TYPE_DUMMY);
+  memset (&m[1], 52, benchmark_size - sizeof (struct GNUNET_MessageHeader));
+
   if (itail->msgs_sent < benchmark_count)
   {
-    GNUNET_MQ_notify_sent (env,
-                          &send_msg,
-                          NULL);
+    GNUNET_MQ_notify_sent (env, &send_msg, NULL);
   }
   else
   {
     iteration_done ();
   }
-  GNUNET_MQ_send (mq,
-                 env);
-  if ( (verbosity > 0) &&
-       (0 == itail->msgs_sent % 10) )
+  GNUNET_MQ_send (mq, env);
+  if ((verbosity > 0) && (0 == itail->msgs_sent % 10))
     FPRINTF (stdout, ".");
 }
 
@@ -351,15 +340,14 @@ iteration_start ()
     return;
   benchmark_running = GNUNET_YES;
   icur = GNUNET_new (struct Iteration);
-  GNUNET_CONTAINER_DLL_insert_tail (ihead,
-                                   itail,
-                                   icur);
-  icur->start = GNUNET_TIME_absolute_get();
+  GNUNET_CONTAINER_DLL_insert_tail (ihead, itail, icur);
+  icur->start = GNUNET_TIME_absolute_get ();
   if (verbosity > 0)
-    FPRINTF (stdout,
-            "\nStarting benchmark, starting to send %u messages in %u byte 
blocks\n",
-            benchmark_count,
-            benchmark_size);
+    FPRINTF (
+      stdout,
+      "\nStarting benchmark, starting to send %u messages in %u byte blocks\n",
+      benchmark_count,
+      benchmark_size);
   send_msg (NULL);
 }
 
@@ -393,22 +381,16 @@ iteration_done ()
 static void *
 notify_connect (void *cls,
                 const struct GNUNET_PeerIdentity *peer,
-               struct GNUNET_MQ_Handle *m)
+                struct GNUNET_MQ_Handle *m)
 {
-  if (0 != memcmp (&pid,
-                   peer,
-                   sizeof(struct GNUNET_PeerIdentity)))
+  if (0 != memcmp (&pid, peer, sizeof (struct GNUNET_PeerIdentity)))
   {
-    FPRINTF (stdout,
-             "Connected to different peer `%s'\n",
-             GNUNET_i2s (&pid));
+    FPRINTF (stdout, "Connected to different peer `%s'\n", GNUNET_i2s (&pid));
     return NULL;
   }
 
   if (verbosity > 0)
-    FPRINTF (stdout,
-             "Successfully connected to `%s'\n",
-             GNUNET_i2s (&pid));
+    FPRINTF (stdout, "Successfully connected to `%s'\n", GNUNET_i2s (&pid));
   mq = m;
   iteration_start ();
   return NULL;
@@ -426,18 +408,16 @@ notify_connect (void *cls,
 static void
 notify_disconnect (void *cls,
                    const struct GNUNET_PeerIdentity *peer,
-                  void *internal_cls)
+                   void *internal_cls)
 {
-  if (0 != memcmp (&pid,
-                  peer,
-                  sizeof(struct GNUNET_PeerIdentity)))
+  if (0 != memcmp (&pid, peer, sizeof (struct GNUNET_PeerIdentity)))
     return;
   mq = NULL;
   if (GNUNET_YES == benchmark_running)
   {
     FPRINTF (stdout,
              "Disconnected from peer `%s' while benchmarking\n",
-            GNUNET_i2s (&pid));
+             GNUNET_i2s (&pid));
     return;
   }
 }
@@ -451,8 +431,7 @@ notify_disconnect (void *cls,
  * @return #GNUNET_OK
  */
 static int
-check_dummy (void *cls,
-            const struct GNUNET_MessageHeader *message)
+check_dummy (void *cls, const struct GNUNET_MessageHeader *message)
 {
   return GNUNET_OK; /* all messages are fine */
 }
@@ -465,30 +444,24 @@ check_dummy (void *cls,
  * @param message the message
  */
 static void
-handle_dummy (void *cls,
-             const struct GNUNET_MessageHeader *message)
+handle_dummy (void *cls, const struct GNUNET_MessageHeader *message)
 {
   if (! benchmark_receive)
     return;
   if (verbosity > 0)
     FPRINTF (stdout,
-            "Received %u bytes\n",
-            (unsigned int) ntohs (message->size));
+             "Received %u bytes\n",
+             (unsigned int) ntohs (message->size));
 }
 
 
 static int
-blacklist_cb (void *cls,
-              const struct GNUNET_PeerIdentity *peer)
+blacklist_cb (void *cls, const struct GNUNET_PeerIdentity *peer)
 {
-  if (0 != memcmp (&pid,
-                  peer,
-                  sizeof(struct GNUNET_PeerIdentity)))
+  if (0 != memcmp (&pid, peer, sizeof (struct GNUNET_PeerIdentity)))
   {
     if (verbosity > 0)
-      FPRINTF (stdout,
-               "Denying connection to `%s'\n",
-               GNUNET_i2s (peer));
+      FPRINTF (stdout, "Denying connection to `%s'\n", GNUNET_i2s (peer));
     return GNUNET_SYSERR;
   }
   return GNUNET_OK;
@@ -509,38 +482,32 @@ run (void *cls,
      const char *cfgfile,
      const struct GNUNET_CONFIGURATION_Handle *mycfg)
 {
-  struct GNUNET_MQ_MessageHandler handlers[] = {
-    GNUNET_MQ_hd_var_size (dummy,
-                           GNUNET_MESSAGE_TYPE_DUMMY,
-                           struct GNUNET_MessageHeader,
-                           NULL),
-    GNUNET_MQ_handler_end ()
-  };
-  
+  struct GNUNET_MQ_MessageHandler handlers[] =
+    {GNUNET_MQ_hd_var_size (dummy,
+                            GNUNET_MESSAGE_TYPE_DUMMY,
+                            struct GNUNET_MessageHeader,
+                            NULL),
+     GNUNET_MQ_handler_end ()};
+
   cfg = (struct GNUNET_CONFIGURATION_Handle *) mycfg;
 
   ret = 1;
   if (GNUNET_MAX_MESSAGE_SIZE <= benchmark_size)
   {
-    FPRINTF (stderr,
-             "Message size too big!\n");
+    FPRINTF (stderr, "Message size too big!\n");
     return;
   }
 
   if (NULL == cpid)
   {
-    FPRINTF (stderr,
-             "No peer identity given\n");
+    FPRINTF (stderr, "No peer identity given\n");
     return;
   }
-  if (GNUNET_OK !=
-      GNUNET_CRYPTO_eddsa_public_key_from_string (cpid,
-                                                 strlen (cpid),
-                                                 &pid.public_key))
+  if (GNUNET_OK != GNUNET_CRYPTO_eddsa_public_key_from_string (cpid,
+                                                               strlen (cpid),
+                                                               
&pid.public_key))
   {
-    FPRINTF (stderr,
-             "Failed to parse peer identity `%s'\n",
-             cpid);
+    FPRINTF (stderr, "Failed to parse peer identity `%s'\n", cpid);
     return;
   }
   if (1 == benchmark_send)
@@ -548,7 +515,8 @@ run (void *cls,
     if (verbosity > 0)
       FPRINTF (stderr,
                "Trying to send %u messages with size %u to peer `%s'\n",
-               benchmark_count, benchmark_size,
+               benchmark_count,
+               benchmark_size,
                GNUNET_i2s (&pid));
   }
   else if (1 == benchmark_receive)
@@ -559,50 +527,42 @@ run (void *cls,
   }
   else
   {
-    FPRINTF (stderr,
-             "No operation given\n");
+    FPRINTF (stderr, "No operation given\n");
     return;
   }
 
   ats = GNUNET_ATS_connectivity_init (cfg);
   if (NULL == ats)
   {
-    FPRINTF (stderr,
-             "Failed to connect to ATS service\n");
+    FPRINTF (stderr, "Failed to connect to ATS service\n");
     ret = 1;
     return;
   }
 
   handle = GNUNET_TRANSPORT_core_connect (cfg,
-                                         NULL,
-                                         handlers,
-                                         NULL,
-                                         &notify_connect,
-                                         &notify_disconnect,
-                                         NULL);
+                                          NULL,
+                                          handlers,
+                                          NULL,
+                                          &notify_connect,
+                                          &notify_disconnect,
+                                          NULL);
   if (NULL == handle)
   {
-    FPRINTF (stderr,
-             "Failed to connect to transport service\n");
+    FPRINTF (stderr, "Failed to connect to transport service\n");
     GNUNET_ATS_connectivity_done (ats);
     ats = NULL;
     ret = 1;
     return;
   }
 
-  bl_handle = GNUNET_TRANSPORT_blacklist (cfg,
-                                          &blacklist_cb,
-                                          NULL);
-  ats_sh = GNUNET_ATS_connectivity_suggest (ats,
-                                            &pid,
-                                            1);
-  GNUNET_SCHEDULER_add_shutdown (&shutdown_task,
-                                NULL);
+  bl_handle = GNUNET_TRANSPORT_blacklist (cfg, &blacklist_cb, NULL);
+  ats_sh = GNUNET_ATS_connectivity_suggest (ats, &pid, 1);
+  GNUNET_SCHEDULER_add_shutdown (&shutdown_task, NULL);
 }
 
 
 int
-main (int argc, char * const *argv)
+main (int argc, char *const *argv)
 {
   int res;
   benchmark_count = DEFAULT_MESSAGE_COUNT;
@@ -613,46 +573,48 @@ main (int argc, char * const *argv)
   struct GNUNET_GETOPT_CommandLineOption options[] = {
 
     GNUNET_GETOPT_option_flag ('s',
-                                  "send",
-                                  gettext_noop ("send data to peer"),
-                                  &benchmark_send),
+                               "send",
+                               gettext_noop ("send data to peer"),
+                               &benchmark_send),
     GNUNET_GETOPT_option_flag ('r',
-                                  "receive",
-                                  gettext_noop ("receive data from peer"),
-                                  &benchmark_receive),
+                               "receive",
+                               gettext_noop ("receive data from peer"),
+                               &benchmark_receive),
     GNUNET_GETOPT_option_uint ('i',
-                                   "iterations",
-                                   NULL,
-                                   gettext_noop ("iterations"),
-                                   &benchmark_iterations),
+                               "iterations",
+                               NULL,
+                               gettext_noop ("iterations"),
+                               &benchmark_iterations),
     GNUNET_GETOPT_option_uint ('n',
-                                   "number",
-                                   NULL,
-                                   gettext_noop ("number of messages to send"),
-                                   &benchmark_count),
+                               "number",
+                               NULL,
+                               gettext_noop ("number of messages to send"),
+                               &benchmark_count),
     GNUNET_GETOPT_option_uint ('m',
-                                   "messagesize",
-                                   NULL,
-                                   gettext_noop ("message size to use"),
-                                   &benchmark_size),
+                               "messagesize",
+                               NULL,
+                               gettext_noop ("message size to use"),
+                               &benchmark_size),
     GNUNET_GETOPT_option_string ('p',
                                  "peer",
                                  "PEER",
                                  gettext_noop ("peer identity"),
                                  &cpid),
     GNUNET_GETOPT_option_verbose (&verbosity),
-    GNUNET_GETOPT_OPTION_END
-  };
+    GNUNET_GETOPT_OPTION_END};
 
   if (GNUNET_OK != GNUNET_STRINGS_get_utf8_args (argc, argv, &argc, &argv))
     return 2;
 
-  res = GNUNET_PROGRAM_run (argc, argv,
-                            "gnunet-transport",
-                            gettext_noop ("Direct access to transport 
service."),
-                            options,
-                            &run, NULL);
-  GNUNET_free((void *) argv);
+  res =
+    GNUNET_PROGRAM_run (argc,
+                        argv,
+                        "gnunet-transport",
+                        gettext_noop ("Direct access to transport service."),
+                        options,
+                        &run,
+                        NULL);
+  GNUNET_free ((void *) argv);
   if (GNUNET_OK == res)
     return ret;
   return 1;
diff --git a/src/transport/gnunet-transport.c b/src/transport/gnunet-transport.c
index c3c1afc38..36c8fc451 100644
--- a/src/transport/gnunet-transport.c
+++ b/src/transport/gnunet-transport.c
@@ -29,12 +29,12 @@
 #include "gnunet_resolver_service.h"
 #include "gnunet_protocols.h"
 #include "gnunet_transport_service.h"
-#include "gnunet_transport_core_service.h"
 
 /**
  * Timeout for a name resolution
  */
-#define RESOLUTION_TIMEOUT GNUNET_TIME_relative_multiply 
(GNUNET_TIME_UNIT_SECONDS, 30)
+#define RESOLUTION_TIMEOUT \
+  GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 30)
 
 /**
  * Timeout for an operation
@@ -332,16 +332,13 @@ static struct PeerResolutionContext *rc_tail;
  * @return #GNUNET_OK (continue to iterate)
  */
 static int
-destroy_it (void *cls,
-            const struct GNUNET_PeerIdentity *key,
-            void *value)
+destroy_it (void *cls, const struct GNUNET_PeerIdentity *key, void *value)
 {
   struct MonitoredPeer *m = value;
 
-  GNUNET_assert (GNUNET_OK ==
-                 GNUNET_CONTAINER_multipeermap_remove (monitored_peers,
-                                                       key,
-                                                       value));
+  GNUNET_assert (
+    GNUNET_OK ==
+    GNUNET_CONTAINER_multipeermap_remove (monitored_peers, key, value));
   GNUNET_free_non_null (m->address);
   GNUNET_free (value);
   return GNUNET_OK;
@@ -384,18 +381,14 @@ shutdown_task (void *cls)
     next = cur->next;
 
     GNUNET_TRANSPORT_address_to_string_cancel (cur->asc);
-    GNUNET_CONTAINER_DLL_remove (vc_head,
-                                vc_tail,
-                                cur);
+    GNUNET_CONTAINER_DLL_remove (vc_head, vc_tail, cur);
     GNUNET_free (cur->transport);
     GNUNET_HELLO_address_free (cur->addrcp);
     GNUNET_free (cur);
   }
   while (NULL != (rc = rc_head))
   {
-    GNUNET_CONTAINER_DLL_remove (rc_head,
-                                rc_tail,
-                                rc);
+    GNUNET_CONTAINER_DLL_remove (rc_head, rc_tail, rc);
     GNUNET_TRANSPORT_address_to_string_cancel (rc->asc);
     GNUNET_free (rc->transport);
     GNUNET_free (rc->addrcp);
@@ -410,35 +403,30 @@ shutdown_task (void *cls)
   {
     duration = GNUNET_TIME_absolute_get_duration (start_time);
     FPRINTF (stdout,
-             _("Transmitted %llu bytes/s (%llu bytes in %s)\n"),
+             _ ("Transmitted %llu bytes/s (%llu bytes in %s)\n"),
              1000LL * 1000LL * traffic_sent / (1 + duration.rel_value_us),
              traffic_sent,
-             GNUNET_STRINGS_relative_time_to_string (duration,
-                                                    GNUNET_YES));
+             GNUNET_STRINGS_relative_time_to_string (duration, GNUNET_YES));
   }
   if (benchmark_receive)
   {
     duration = GNUNET_TIME_absolute_get_duration (start_time);
     FPRINTF (stdout,
-             _("Received %llu bytes/s (%llu bytes in %s)\n"),
+             _ ("Received %llu bytes/s (%llu bytes in %s)\n"),
              1000LL * 1000LL * traffic_received / (1 + duration.rel_value_us),
              traffic_received,
-             GNUNET_STRINGS_relative_time_to_string (duration,
-                                                    GNUNET_YES));
+             GNUNET_STRINGS_relative_time_to_string (duration, GNUNET_YES));
   }
 
   if (NULL != monitored_peers)
   {
-    GNUNET_CONTAINER_multipeermap_iterate (monitored_peers,
-                                          &destroy_it,
-                                          NULL);
+    GNUNET_CONTAINER_multipeermap_iterate (monitored_peers, &destroy_it, NULL);
     GNUNET_CONTAINER_multipeermap_destroy (monitored_peers);
     monitored_peers = NULL;
   }
   if (NULL != monitored_plugins)
   {
-    GNUNET_break (0 ==
-                  GNUNET_CONTAINER_multipeermap_size (monitored_plugins));
+    GNUNET_break (0 == GNUNET_CONTAINER_multipeermap_size (monitored_plugins));
     GNUNET_CONTAINER_multipeermap_destroy (monitored_plugins);
     monitored_plugins = NULL;
   }
@@ -463,9 +451,7 @@ operation_timeout (void *cls)
   op_timeout = NULL;
   if ((benchmark_send) || (benchmark_receive))
   {
-    FPRINTF (stdout,
-             _("Failed to connect to `%s'\n"),
-             GNUNET_i2s_full (&pid));
+    FPRINTF (stdout, _ ("Failed to connect to `%s'\n"), GNUNET_i2s_full 
(&pid));
     GNUNET_SCHEDULER_shutdown ();
     ret = 1;
     return;
@@ -477,21 +463,18 @@ operation_timeout (void *cls)
     {
       next = cur->next;
       FPRINTF (stdout,
-               _("Failed to resolve address for peer `%s'\n"),
+               _ ("Failed to resolve address for peer `%s'\n"),
                GNUNET_i2s (&cur->addrcp->peer));
 
-      GNUNET_CONTAINER_DLL_remove(rc_head,
-                                 rc_tail,
-                                 cur);
+      GNUNET_CONTAINER_DLL_remove (rc_head, rc_tail, cur);
       GNUNET_TRANSPORT_address_to_string_cancel (cur->asc);
       GNUNET_free (cur->transport);
       GNUNET_free (cur->addrcp);
       GNUNET_free (cur);
-
     }
     FPRINTF (stdout,
              "%s",
-             _("Failed to list connections, timeout occurred\n"));
+             _ ("Failed to list connections, timeout occurred\n"));
     GNUNET_SCHEDULER_shutdown ();
     ret = 1;
     return;
@@ -512,22 +495,15 @@ do_send (void *cls)
   struct GNUNET_MessageHeader *m;
   struct GNUNET_MQ_Envelope *env;
 
-  env = GNUNET_MQ_msg_extra (m,
-                            BLOCKSIZE * 1024,
-                             GNUNET_MESSAGE_TYPE_DUMMY);
-  memset (&m[1],
-         52,
-         BLOCKSIZE * 1024 - sizeof(struct GNUNET_MessageHeader));
+  env = GNUNET_MQ_msg_extra (m, BLOCKSIZE * 1024, GNUNET_MESSAGE_TYPE_DUMMY);
+  memset (&m[1], 52, BLOCKSIZE * 1024 - sizeof (struct GNUNET_MessageHeader));
   traffic_sent += BLOCKSIZE * 1024;
-  GNUNET_MQ_notify_sent (env,
-                        &do_send,
-                        mq);
+  GNUNET_MQ_notify_sent (env, &do_send, mq);
   if (verbosity > 0)
     FPRINTF (stdout,
-            _("Transmitting %u bytes\n"),
-            (unsigned int) BLOCKSIZE * 1024);
-  GNUNET_MQ_send (mq,
-                 env);
+             _ ("Transmitting %u bytes\n"),
+             (unsigned int) BLOCKSIZE * 1024);
+  GNUNET_MQ_send (mq, env);
 }
 
 
@@ -542,11 +518,9 @@ do_send (void *cls)
 static void *
 notify_connect (void *cls,
                 const struct GNUNET_PeerIdentity *peer,
-               struct GNUNET_MQ_Handle *mq)
+                struct GNUNET_MQ_Handle *mq)
 {
-  if (0 != memcmp (&pid,
-                  peer,
-                  sizeof(struct GNUNET_PeerIdentity)))
+  if (0 != memcmp (&pid, peer, sizeof (struct GNUNET_PeerIdentity)))
     return NULL;
   ret = 0;
   if (! benchmark_send)
@@ -557,10 +531,12 @@ notify_connect (void *cls,
     op_timeout = NULL;
   }
   if (verbosity > 0)
-    FPRINTF (stdout,
-            _("Successfully connected to `%s', starting to send benchmark data 
in %u Kb blocks\n"),
-            GNUNET_i2s (peer),
-            BLOCKSIZE);
+    FPRINTF (
+      stdout,
+      _ (
+        "Successfully connected to `%s', starting to send benchmark data in %u 
Kb blocks\n"),
+      GNUNET_i2s (peer),
+      BLOCKSIZE);
   start_time = GNUNET_TIME_absolute_get ();
   do_send (mq);
   return mq;
@@ -578,19 +554,17 @@ notify_connect (void *cls,
 static void
 notify_disconnect (void *cls,
                    const struct GNUNET_PeerIdentity *peer,
-                  void *internal_cls)
+                   void *internal_cls)
 {
-  if (0 != memcmp (&pid,
-                  peer,
-                  sizeof(struct GNUNET_PeerIdentity)))
+  if (0 != memcmp (&pid, peer, sizeof (struct GNUNET_PeerIdentity)))
     return;
   if (NULL == internal_cls)
     return; /* not about target peer */
   if (! benchmark_send)
     return; /* not transmitting */
   FPRINTF (stdout,
-          _("Disconnected from peer `%s' while benchmarking\n"),
-          GNUNET_i2s (&pid));
+           _ ("Disconnected from peer `%s' while benchmarking\n"),
+           GNUNET_i2s (&pid));
 }
 
 
@@ -606,16 +580,16 @@ notify_disconnect (void *cls,
 static void *
 monitor_notify_connect (void *cls,
                         const struct GNUNET_PeerIdentity *peer,
-                       struct GNUNET_MQ_Handle *mq)
+                        struct GNUNET_MQ_Handle *mq)
 {
   struct GNUNET_TIME_Absolute now = GNUNET_TIME_absolute_get ();
   const char *now_str = GNUNET_STRINGS_absolute_time_to_string (now);
 
   monitor_connect_counter++;
   FPRINTF (stdout,
-           _("%24s: %-17s %4s   (%u connections in total)\n"),
+           _ ("%24s: %-17s %4s   (%u connections in total)\n"),
            now_str,
-           _("Connected to"),
+           _ ("Connected to"),
            GNUNET_i2s (peer),
            monitor_connect_counter);
   return NULL;
@@ -633,18 +607,18 @@ monitor_notify_connect (void *cls,
 static void
 monitor_notify_disconnect (void *cls,
                            const struct GNUNET_PeerIdentity *peer,
-                          void *internal_cls)
+                           void *internal_cls)
 {
   struct GNUNET_TIME_Absolute now = GNUNET_TIME_absolute_get ();
   const char *now_str = GNUNET_STRINGS_absolute_time_to_string (now);
 
-  GNUNET_assert(monitor_connect_counter > 0);
+  GNUNET_assert (monitor_connect_counter > 0);
   monitor_connect_counter--;
 
   FPRINTF (stdout,
-           _("%24s: %-17s %4s   (%u connections in total)\n"),
+           _ ("%24s: %-17s %4s   (%u connections in total)\n"),
            now_str,
-           _("Disconnected from"),
+           _ ("Disconnected from"),
            GNUNET_i2s (peer),
            monitor_connect_counter);
 }
@@ -658,8 +632,7 @@ monitor_notify_disconnect (void *cls,
  * @return #GNUNET_OK
  */
 static int
-check_dummy (void *cls,
-            const struct GNUNET_MessageHeader *message)
+check_dummy (void *cls, const struct GNUNET_MessageHeader *message)
 {
   return GNUNET_OK; /* all messages are fine */
 }
@@ -672,15 +645,14 @@ check_dummy (void *cls,
  * @param message the message
  */
 static void
-handle_dummy (void *cls,
-             const struct GNUNET_MessageHeader *message)
+handle_dummy (void *cls, const struct GNUNET_MessageHeader *message)
 {
   if (! benchmark_receive)
     return;
   if (verbosity > 0)
     FPRINTF (stdout,
-            _("Received %u bytes\n"),
-            (unsigned int) ntohs (message->size));
+             _ ("Received %u bytes\n"),
+             (unsigned int) ntohs (message->size));
   if (0 == traffic_received)
     start_time = GNUNET_TIME_absolute_get ();
   traffic_received += ntohs (message->size);
@@ -711,24 +683,23 @@ print_info (const struct GNUNET_PeerIdentity *id,
             struct GNUNET_TIME_Absolute state_timeout)
 {
 
-  if ( ((GNUNET_YES == iterate_connections) &&
-       (GNUNET_YES == iterate_all)) ||
-       (GNUNET_YES == monitor_connections))
+  if (((GNUNET_YES == iterate_connections) && (GNUNET_YES == iterate_all)) ||
+      (GNUNET_YES == monitor_connections))
   {
     FPRINTF (stdout,
-             _("Peer `%s': %s %s in state `%s' until %s\n"),
+             _ ("Peer `%s': %s %s in state `%s' until %s\n"),
              GNUNET_i2s (id),
              (NULL == transport) ? "<none>" : transport,
              (NULL == transport) ? "<none>" : addr,
              GNUNET_TRANSPORT_ps2s (state),
              GNUNET_STRINGS_absolute_time_to_string (state_timeout));
   }
-  else if ( (GNUNET_YES == iterate_connections) &&
-           (GNUNET_TRANSPORT_is_connected(state)) )
+  else if ((GNUNET_YES == iterate_connections) &&
+           (GNUNET_TRANSPORT_is_connected (state)))
   {
     /* Only connected peers, skip state */
     FPRINTF (stdout,
-             _("Peer `%s': %s %s\n"),
+             _ ("Peer `%s': %s %s\n"),
              GNUNET_i2s (id),
              transport,
              addr);
@@ -753,9 +724,7 @@ print_info (const struct GNUNET_PeerIdentity *id,
  *        if #GNUNET_SYSERR: communication error (IPC error)
  */
 static void
-process_peer_string (void *cls,
-                     const char *address,
-                     int res)
+process_peer_string (void *cls, const char *address, int res)
 {
   struct PeerResolutionContext *rc = cls;
 
@@ -763,11 +732,12 @@ process_peer_string (void *cls,
   {
     if (GNUNET_SYSERR == res)
     {
-      FPRINTF (stderr,
-               "Failed to convert address for peer `%s' plugin `%s' length %u 
to string \n",
-               GNUNET_i2s (&rc->addrcp->peer),
-               rc->addrcp->transport_name,
-               (unsigned int) rc->addrcp->address_length);
+      FPRINTF (
+        stderr,
+        "Failed to convert address for peer `%s' plugin `%s' length %u to 
string \n",
+        GNUNET_i2s (&rc->addrcp->peer),
+        rc->addrcp->transport_name,
+        (unsigned int) rc->addrcp->address_length);
       print_info (&rc->addrcp->peer,
                   rc->transport,
                   NULL,
@@ -818,9 +788,7 @@ process_peer_string (void *cls,
   }
   GNUNET_free (rc->transport);
   GNUNET_free (rc->addrcp);
-  GNUNET_CONTAINER_DLL_remove (rc_head,
-                              rc_tail,
-                              rc);
+  GNUNET_CONTAINER_DLL_remove (rc_head, rc_tail, rc);
   GNUNET_free (rc);
   if ((0 == address_resolutions) && (iterate_connections))
   {
@@ -854,9 +822,7 @@ resolve_peer_address (const struct GNUNET_HELLO_Address 
*address,
   struct PeerResolutionContext *rc;
 
   rc = GNUNET_new (struct PeerResolutionContext);
-  GNUNET_CONTAINER_DLL_insert (rc_head,
-                              rc_tail,
-                              rc);
+  GNUNET_CONTAINER_DLL_insert (rc_head, rc_tail, rc);
   address_resolutions++;
   rc->transport = GNUNET_strdup (address->transport_name);
   rc->addrcp = GNUNET_HELLO_address_copy (address);
@@ -869,7 +835,7 @@ resolve_peer_address (const struct GNUNET_HELLO_Address 
*address,
                                                 numeric,
                                                 RESOLUTION_TIMEOUT,
                                                 &process_peer_string,
-                                               rc);
+                                                rc);
 }
 
 
@@ -897,15 +863,14 @@ process_peer_iteration_cb (void *cls,
     return;
   }
 
-  if ( (GNUNET_NO == iterate_all) &&
-       (GNUNET_NO == GNUNET_TRANSPORT_is_connected(state)))
-      return; /* Display only connected peers */
+  if ((GNUNET_NO == iterate_all) &&
+      (GNUNET_NO == GNUNET_TRANSPORT_is_connected (state)))
+    return; /* Display only connected peers */
 
   if (NULL != op_timeout)
     GNUNET_SCHEDULER_cancel (op_timeout);
-  op_timeout = GNUNET_SCHEDULER_add_delayed (OP_TIMEOUT,
-                                             &operation_timeout,
-                                             NULL);
+  op_timeout =
+    GNUNET_SCHEDULER_add_delayed (OP_TIMEOUT, &operation_timeout, NULL);
 
   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
               "Received address for peer `%s': %s\n",
@@ -913,16 +878,9 @@ process_peer_iteration_cb (void *cls,
               address ? address->transport_name : "");
 
   if (NULL != address)
-    resolve_peer_address (address,
-                         numeric,
-                         state,
-                         state_timeout);
+    resolve_peer_address (address, numeric, state, state_timeout);
   else
-    print_info (peer,
-               NULL,
-               NULL,
-               state,
-               state_timeout);
+    print_info (peer, NULL, NULL, state, state_timeout);
 }
 
 
@@ -958,7 +916,7 @@ struct PluginMonitorAddress
  */
 static void
 print_plugin_event_info (struct PluginMonitorAddress *addr,
-                        const struct GNUNET_TRANSPORT_SessionInfo *info)
+                         const struct GNUNET_TRANSPORT_SessionInfo *info)
 {
   const char *state;
 
@@ -987,20 +945,22 @@ print_plugin_event_info (struct PluginMonitorAddress 
*addr,
            "%s: state %s timeout in %s @ %s%s\n",
            GNUNET_i2s (&info->address->peer),
            state,
-           GNUNET_STRINGS_relative_time_to_string 
(GNUNET_TIME_absolute_get_remaining (info->session_timeout),
-                                                  GNUNET_YES),
-          addr->str,
+           GNUNET_STRINGS_relative_time_to_string (
+             GNUNET_TIME_absolute_get_remaining (info->session_timeout),
+             GNUNET_YES),
+           addr->str,
            (info->is_inbound == GNUNET_YES) ? " (INBOUND)" : "");
   fprintf (stdout,
            "%s: queue has %3u messages and %6u bytes\n",
            GNUNET_i2s (&info->address->peer),
            info->num_msg_pending,
            info->num_bytes_pending);
-  if (0 != GNUNET_TIME_absolute_get_remaining 
(info->receive_delay).rel_value_us)
+  if (0 !=
+      GNUNET_TIME_absolute_get_remaining (info->receive_delay).rel_value_us)
     fprintf (stdout,
-            "%s: receiving blocked until %s\n",
-            GNUNET_i2s (&info->address->peer),
-            GNUNET_STRINGS_absolute_time_to_string (info->receive_delay));
+             "%s: receiving blocked until %s\n",
+             GNUNET_i2s (&info->address->peer),
+             GNUNET_STRINGS_absolute_time_to_string (info->receive_delay));
 }
 
 
@@ -1021,9 +981,7 @@ print_plugin_event_info (struct PluginMonitorAddress *addr,
  *        if #GNUNET_SYSERR: communication error (IPC error)
  */
 static void
-address_cb (void *cls,
-            const char *address,
-            int res)
+address_cb (void *cls, const char *address, int res)
 {
   struct PluginMonitorAddress *addr = cls;
 
@@ -1035,8 +993,7 @@ address_cb (void *cls,
   if (NULL != addr->str)
     return;
   addr->str = GNUNET_strdup (address);
-  print_plugin_event_info (addr,
-                          &addr->si);
+  print_plugin_event_info (addr, &addr->si);
 }
 
 
@@ -1065,8 +1022,7 @@ plugin_monitoring_cb (void *cls,
 {
   struct PluginMonitorAddress *addr;
 
-  if ( (NULL == info) &&
-       (NULL == session) )
+  if ((NULL == info) && (NULL == session))
     return; /* in sync with transport service */
   addr = *session_ctx;
   if (NULL == info)
@@ -1084,26 +1040,25 @@ plugin_monitoring_cb (void *cls,
     }
     return; /* shutdown */
   }
-  if (0 != memcmp (&info->address->peer,
-                   &pid,
-                   sizeof (struct GNUNET_PeerIdentity)))
+  if (0 !=
+      memcmp (&info->address->peer, &pid, sizeof (struct GNUNET_PeerIdentity)))
     return; /* filtered */
   if (NULL == addr)
   {
     addr = GNUNET_new (struct PluginMonitorAddress);
-    addr->asc = GNUNET_TRANSPORT_address_to_string (cfg,
-                                                    info->address,
-                                                    numeric,
-                                                    
GNUNET_TIME_UNIT_FOREVER_REL,
-                                                    &address_cb,
-                                                    addr);
+    addr->asc =
+      GNUNET_TRANSPORT_address_to_string (cfg,
+                                          info->address,
+                                          numeric,
+                                          GNUNET_TIME_UNIT_FOREVER_REL,
+                                          &address_cb,
+                                          addr);
     *session_ctx = addr;
   }
   if (NULL == addr->str)
     addr->si = *info;
   else
-    print_plugin_event_info (addr,
-                            info);
+    print_plugin_event_info (addr, info);
   if (GNUNET_TRANSPORT_SS_DONE == info->state)
   {
     if (NULL != addr->asc)
@@ -1141,38 +1096,35 @@ process_peer_monitoring_cb (void *cls,
   {
     FPRINTF (stdout,
              "%s",
-             _("Monitor disconnected from transport service. 
Reconnecting.\n"));
+             _ (
+               "Monitor disconnected from transport service. 
Reconnecting.\n"));
     return;
   }
 
   if (NULL != op_timeout)
     GNUNET_SCHEDULER_cancel (op_timeout);
-  op_timeout = GNUNET_SCHEDULER_add_delayed (OP_TIMEOUT,
-                                             &operation_timeout,
-                                             NULL);
+  op_timeout =
+    GNUNET_SCHEDULER_add_delayed (OP_TIMEOUT, &operation_timeout, NULL);
 
-  if (NULL == (m = GNUNET_CONTAINER_multipeermap_get (monitored_peers,
-                                                     peer)))
+  if (NULL == (m = GNUNET_CONTAINER_multipeermap_get (monitored_peers, peer)))
   {
     m = GNUNET_new (struct MonitoredPeer);
-    GNUNET_CONTAINER_multipeermap_put (monitored_peers,
-                                      peer,
-                                      m,
-                                      
GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_FAST);
+    GNUNET_CONTAINER_multipeermap_put (
+      monitored_peers,
+      peer,
+      m,
+      GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_FAST);
   }
   else
   {
-    if ( (m->state == state) &&
-        (m->state_timeout.abs_value_us == state_timeout.abs_value_us) &&
-        (NULL == address) &&
-        (NULL == m->address) )
+    if ((m->state == state) &&
+        (m->state_timeout.abs_value_us == state_timeout.abs_value_us) &&
+        (NULL == address) && (NULL == m->address))
     {
       return; /* No real change */
     }
-    if ( (m->state == state) &&
-        (NULL != address) &&
-        (NULL != m->address) &&
-        (0 == GNUNET_HELLO_address_cmp(m->address, address)) )
+    if ((m->state == state) && (NULL != address) && (NULL != m->address) &&
+        (0 == GNUNET_HELLO_address_cmp (m->address, address)))
       return; /* No real change */
   }
 
@@ -1187,16 +1139,9 @@ process_peer_monitoring_cb (void *cls,
   m->state_timeout = state_timeout;
 
   if (NULL != address)
-    resolve_peer_address (m->address,
-                          numeric,
-                          m->state,
-                          m->state_timeout);
+    resolve_peer_address (m->address, numeric, m->state, m->state_timeout);
   else
-    print_info (peer,
-                NULL,
-                NULL,
-                m->state,
-                m->state_timeout);
+    print_info (peer, NULL, NULL, m->state, m->state_timeout);
 }
 
 
@@ -1210,12 +1155,9 @@ process_peer_monitoring_cb (void *cls,
  * @return #GNUNET_OK if the connection is allowed, #GNUNET_SYSERR if not
  */
 static int
-blacklist_cb (void *cls,
-              const struct GNUNET_PeerIdentity *cpid)
+blacklist_cb (void *cls, const struct GNUNET_PeerIdentity *cpid)
 {
-  if (0 == memcmp (cpid,
-                   &pid,
-                   sizeof (struct GNUNET_PeerIdentity)))
+  if (0 == memcmp (cpid, &pid, sizeof (struct GNUNET_PeerIdentity)))
     return GNUNET_SYSERR;
   return GNUNET_OK;
 }
@@ -1231,7 +1173,7 @@ blacklist_cb (void *cls,
  */
 static void
 run (void *cls,
-     char * const *args,
+     char *const *args,
      const char *cfgfile,
      const struct GNUNET_CONFIGURATION_Handle *mycfg)
 {
@@ -1241,127 +1183,119 @@ run (void *cls,
 
   cfg = (struct GNUNET_CONFIGURATION_Handle *) mycfg;
 
-  counter = benchmark_send + benchmark_receive + iterate_connections
-      + monitor_connections + monitor_connects + do_disconnect +
-      monitor_plugins;
+  counter = benchmark_send + benchmark_receive + iterate_connections +
+            monitor_connections + monitor_connects + do_disconnect +
+            monitor_plugins;
 
   if (1 < counter)
   {
-    FPRINTF (stderr,
-             _("Multiple operations given. Please choose only one operation: 
%s, %s, %s, %s, %s, %s %s\n"),
-             "disconnect",
-            "benchmark send",
-            "benchmark receive",
-            "information",
-             "monitor",
-            "events",
-            "plugins");
+    FPRINTF (
+      stderr,
+      _ (
+        "Multiple operations given. Please choose only one operation: %s, %s, 
%s, %s, %s, %s %s\n"),
+      "disconnect",
+      "benchmark send",
+      "benchmark receive",
+      "information",
+      "monitor",
+      "events",
+      "plugins");
     return;
   }
   if (0 == counter)
   {
-    FPRINTF (stderr,
-            _("No operation given. Please choose one operation: %s, %s, %s, 
%s, %s, %s, %s\n"),
-             "disconnect",
-            "benchmark send",
-            "benchmark receive",
-            "information",
-             "monitor",
-            "events",
-            "plugins");
+    FPRINTF (
+      stderr,
+      _ (
+        "No operation given. Please choose one operation: %s, %s, %s, %s, %s, 
%s, %s\n"),
+      "disconnect",
+      "benchmark send",
+      "benchmark receive",
+      "information",
+      "monitor",
+      "events",
+      "plugins");
     return;
   }
 
   if (do_disconnect) /* -D: Disconnect from peer */
   {
-    if (0 == memcmp (&zero_pid,
-                     &pid,
-                     sizeof (pid)))
+    if (0 == memcmp (&zero_pid, &pid, sizeof (pid)))
     {
       FPRINTF (stderr,
-               _("Option `%s' makes no sense without option `%s'.\n"),
-               "-D", "-p");
+               _ ("Option `%s' makes no sense without option `%s'.\n"),
+               "-D",
+               "-p");
       ret = 1;
       return;
     }
-    blacklist = GNUNET_TRANSPORT_blacklist (cfg,
-                                            &blacklist_cb,
-                                            NULL);
+    blacklist = GNUNET_TRANSPORT_blacklist (cfg, &blacklist_cb, NULL);
     if (NULL == blacklist)
     {
       FPRINTF (stderr,
                "%s",
-               _("Failed to connect to transport service for 
disconnection\n"));
+               _ (
+                 "Failed to connect to transport service for 
disconnection\n"));
       ret = 1;
       return;
     }
     FPRINTF (stdout,
              "%s",
-             _("Blacklisting request in place, stop with CTRL-C\n"));
+             _ ("Blacklisting request in place, stop with CTRL-C\n"));
   }
   else if (benchmark_send) /* -s: Benchmark sending */
   {
-    if (0 == memcmp (&zero_pid,
-                     &pid,
-                     sizeof (pid)))
+    if (0 == memcmp (&zero_pid, &pid, sizeof (pid)))
     {
       FPRINTF (stderr,
-              _("Option `%s' makes no sense without option `%s'.\n"),
-              "-s", "-p");
+               _ ("Option `%s' makes no sense without option `%s'.\n"),
+               "-s",
+               "-p");
       ret = 1;
       return;
     }
     handle = GNUNET_TRANSPORT_core_connect (cfg,
-                                           NULL,
-                                           NULL,
-                                           NULL,
-                                           &notify_connect,
-                                           &notify_disconnect,
-                                           NULL);
+                                            NULL,
+                                            NULL,
+                                            NULL,
+                                            &notify_connect,
+                                            &notify_disconnect,
+                                            NULL);
     if (NULL == handle)
     {
-      FPRINTF (stderr,
-              "%s",
-              _("Failed to connect to transport service\n"));
+      FPRINTF (stderr, "%s", _ ("Failed to connect to transport service\n"));
       ret = 1;
       return;
     }
     start_time = GNUNET_TIME_absolute_get ();
-    op_timeout = GNUNET_SCHEDULER_add_delayed (OP_TIMEOUT,
-                                               &operation_timeout,
-                                               NULL);
+    op_timeout =
+      GNUNET_SCHEDULER_add_delayed (OP_TIMEOUT, &operation_timeout, NULL);
   }
   else if (benchmark_receive) /* -b: Benchmark receiving */
   {
-    struct GNUNET_MQ_MessageHandler handlers[] = {
-      GNUNET_MQ_hd_var_size (dummy,
-                             GNUNET_MESSAGE_TYPE_DUMMY,
-                             struct GNUNET_MessageHeader,
-                             NULL),
-      GNUNET_MQ_handler_end ()
-    };
+    struct GNUNET_MQ_MessageHandler handlers[] =
+      {GNUNET_MQ_hd_var_size (dummy,
+                              GNUNET_MESSAGE_TYPE_DUMMY,
+                              struct GNUNET_MessageHeader,
+                              NULL),
+       GNUNET_MQ_handler_end ()};
 
     handle = GNUNET_TRANSPORT_core_connect (cfg,
-                                           NULL,
-                                           handlers,
-                                           NULL,
-                                           NULL,
-                                           NULL,
-                                           NULL);
+                                            NULL,
+                                            handlers,
+                                            NULL,
+                                            NULL,
+                                            NULL,
+                                            NULL);
     if (NULL == handle)
     {
-      FPRINTF (stderr,
-              "%s",
-              _("Failed to connect to transport service\n"));
+      FPRINTF (stderr, "%s", _ ("Failed to connect to transport service\n"));
       ret = 1;
       return;
     }
     if (verbosity > 0)
-      FPRINTF (stdout,
-              "%s",
-              _("Starting to receive benchmark data\n"));
+      FPRINTF (stdout, "%s", _ ("Starting to receive benchmark data\n"));
     start_time = GNUNET_TIME_absolute_get ();
-
   }
   else if (iterate_connections) /* -i: List information about peers once */
   {
@@ -1370,42 +1304,38 @@ run (void *cls,
                                           GNUNET_YES,
                                           &process_peer_iteration_cb,
                                           (void *) cfg);
-    op_timeout = GNUNET_SCHEDULER_add_delayed (OP_TIMEOUT,
-                                               &operation_timeout,
-                                               NULL);
+    op_timeout =
+      GNUNET_SCHEDULER_add_delayed (OP_TIMEOUT, &operation_timeout, NULL);
   }
-  else if (monitor_connections) /* -m: List information about peers 
continuously */
+  else if (monitor_connections) /* -m: List information about peers 
continuously
+                                 */
   {
-    monitored_peers = GNUNET_CONTAINER_multipeermap_create (10,
-                                                           GNUNET_NO);
+    monitored_peers = GNUNET_CONTAINER_multipeermap_create (10, GNUNET_NO);
     pic = GNUNET_TRANSPORT_monitor_peers (cfg,
-                                         &pid,
+                                          &pid,
                                           GNUNET_NO,
                                           &process_peer_monitoring_cb,
                                           NULL);
   }
-  else if (monitor_plugins) /* -P: List information about plugins continuously 
*/
+  else if (monitor_plugins) /* -P: List information about plugins continuously
+                             */
   {
     monitored_plugins = GNUNET_CONTAINER_multipeermap_create (10, GNUNET_NO);
-    pm = GNUNET_TRANSPORT_monitor_plugins (cfg,
-                                           &plugin_monitoring_cb,
-                                           NULL);
+    pm = GNUNET_TRANSPORT_monitor_plugins (cfg, &plugin_monitoring_cb, NULL);
   }
   else if (monitor_connects) /* -e : Monitor (dis)connect events continuously 
*/
   {
     monitor_connect_counter = 0;
     handle = GNUNET_TRANSPORT_core_connect (cfg,
-                                           NULL,
-                                           NULL,
-                                           NULL,
-                                           &monitor_notify_connect,
-                                           &monitor_notify_disconnect,
-                                           NULL);
+                                            NULL,
+                                            NULL,
+                                            NULL,
+                                            &monitor_notify_connect,
+                                            &monitor_notify_disconnect,
+                                            NULL);
     if (NULL == handle)
     {
-      FPRINTF (stderr,
-               "%s",
-               _("Failed to connect to transport service\n"));
+      FPRINTF (stderr, "%s", _ ("Failed to connect to transport service\n"));
       ret = 1;
       return;
     }
@@ -1413,75 +1343,86 @@ run (void *cls,
   }
   else
   {
-    GNUNET_break(0);
+    GNUNET_break (0);
     return;
   }
 
-  GNUNET_SCHEDULER_add_shutdown (&shutdown_task,
-                                NULL);
+  GNUNET_SCHEDULER_add_shutdown (&shutdown_task, NULL);
 }
 
 
 int
-main (int argc,
-      char * const *argv)
+main (int argc, char *const *argv)
 {
   int res;
-  struct GNUNET_GETOPT_CommandLineOption options[] = {
-    GNUNET_GETOPT_option_flag ('a',
-                                  "all",
-                                  gettext_noop ("print information for all 
peers (instead of only connected peers)"),
-                                  &iterate_all),
-    GNUNET_GETOPT_option_flag ('b',
-                                  "benchmark",
-                                  gettext_noop ("measure how fast we are 
receiving data from all peers (until CTRL-C)"),
-                                  &benchmark_receive),
-    GNUNET_GETOPT_option_flag ('D',
-                                  "disconnect",
-                                  gettext_noop ("disconnect from a peer"),
-                                  &do_disconnect),
-    GNUNET_GETOPT_option_flag ('i',
-                                  "information",
-                                  gettext_noop ("provide information about all 
current connections (once)"),
-                                  &iterate_connections),
-    GNUNET_GETOPT_option_flag ('m',
-                                  "monitor",
-                                  gettext_noop ("provide information about all 
current connections (continuously)"),
-                                  &monitor_connections),
-    GNUNET_GETOPT_option_flag ('e',
-                                  "events",
-                                  gettext_noop ("provide information about all 
connects and disconnect events (continuously)"),
-                                  &monitor_connects),
-    GNUNET_GETOPT_option_flag ('n',
-                                  "numeric",
-                                  gettext_noop ("do not resolve hostnames"),
-                                  &numeric),
-    GNUNET_GETOPT_option_base32_auto ('p',
-                                          "peer",
-                                          "PEER",
-                                          gettext_noop ("peer identity"),
-                                          &pid),
-    GNUNET_GETOPT_option_flag ('P',
-                                  "plugins",
-                                  gettext_noop ("monitor plugin sessions"),
-                                  &monitor_plugins),
-    GNUNET_GETOPT_option_flag ('s',
-                                  "send",
-                                  gettext_noop
-      ("send data for benchmarking to the other peer (until CTRL-C)"),
-                                  &benchmark_send),
-    GNUNET_GETOPT_option_verbose (&verbosity),
-    GNUNET_GETOPT_OPTION_END
-  };
+  struct GNUNET_GETOPT_CommandLineOption options[] =
+    {GNUNET_GETOPT_option_flag (
+       'a',
+       "all",
+       gettext_noop (
+         "print information for all peers (instead of only connected peers)"),
+       &iterate_all),
+     GNUNET_GETOPT_option_flag (
+       'b',
+       "benchmark",
+       gettext_noop (
+         "measure how fast we are receiving data from all peers (until 
CTRL-C)"),
+       &benchmark_receive),
+     GNUNET_GETOPT_option_flag ('D',
+                                "disconnect",
+                                gettext_noop ("disconnect from a peer"),
+                                &do_disconnect),
+     GNUNET_GETOPT_option_flag (
+       'i',
+       "information",
+       gettext_noop (
+         "provide information about all current connections (once)"),
+       &iterate_connections),
+     GNUNET_GETOPT_option_flag (
+       'm',
+       "monitor",
+       gettext_noop (
+         "provide information about all current connections (continuously)"),
+       &monitor_connections),
+     GNUNET_GETOPT_option_flag (
+       'e',
+       "events",
+       gettext_noop (
+         "provide information about all connects and disconnect events 
(continuously)"),
+       &monitor_connects),
+     GNUNET_GETOPT_option_flag ('n',
+                                "numeric",
+                                gettext_noop ("do not resolve hostnames"),
+                                &numeric),
+     GNUNET_GETOPT_option_base32_auto ('p',
+                                       "peer",
+                                       "PEER",
+                                       gettext_noop ("peer identity"),
+                                       &pid),
+     GNUNET_GETOPT_option_flag ('P',
+                                "plugins",
+                                gettext_noop ("monitor plugin sessions"),
+                                &monitor_plugins),
+     GNUNET_GETOPT_option_flag (
+       's',
+       "send",
+       gettext_noop (
+         "send data for benchmarking to the other peer (until CTRL-C)"),
+       &benchmark_send),
+     GNUNET_GETOPT_option_verbose (&verbosity),
+     GNUNET_GETOPT_OPTION_END};
 
   if (GNUNET_OK != GNUNET_STRINGS_get_utf8_args (argc, argv, &argc, &argv))
     return 2;
 
-  res = GNUNET_PROGRAM_run (argc, argv,
-                            "gnunet-transport",
-                            gettext_noop ("Direct access to transport 
service."),
-                            options,
-                            &run, NULL);
+  res =
+    GNUNET_PROGRAM_run (argc,
+                        argv,
+                        "gnunet-transport",
+                        gettext_noop ("Direct access to transport service."),
+                        options,
+                        &run,
+                        NULL);
   GNUNET_free ((void *) argv);
   if (GNUNET_OK == res)
     return ret;
diff --git a/src/transport/transport-testing.h 
b/src/transport/transport-testing.h
index 4629d6125..83bbf277b 100644
--- a/src/transport/transport-testing.h
+++ b/src/transport/transport-testing.h
@@ -11,7 +11,7 @@
      WITHOUT ANY WARRANTY; without even the implied warranty of
      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      Affero General Public License for more details.
-    
+
      You should have received a copy of the GNU Affero General Public License
      along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
@@ -30,7 +30,6 @@
 #include "gnunet_util_lib.h"
 #include "gnunet_hello_lib.h"
 #include "gnunet_transport_service.h"
-#include "gnunet_transport_core_service.h"
 #include "gnunet_transport_hello_service.h"
 #include "gnunet_transport_manipulation_service.h"
 #include "gnunet_testing_lib.h"
@@ -143,7 +142,7 @@ struct GNUNET_TRANSPORT_TESTING_PeerContext
    * Closure for @e start_cb.
    */
   void *start_cb_cls;
-  
+
   /**
    * An unique number to identify the peer
    */
@@ -207,12 +206,12 @@ struct GNUNET_TRANSPORT_TESTING_ConnectRequest
    */
   struct GNUNET_MQ_Handle *mq;
 
-  /** 
+  /**
    * Set if peer1 says the connection is up to peer2.
    */
   int p1_c;
 
-  /** 
+  /**
    * Set if peer2 says the connection is up to peer1.
    */
   int p2_c;
@@ -289,15 +288,16 @@ GNUNET_TRANSPORT_TESTING_done (struct 
GNUNET_TRANSPORT_TESTING_Handle *tth);
  * @return the peer context
  */
 struct GNUNET_TRANSPORT_TESTING_PeerContext *
-GNUNET_TRANSPORT_TESTING_start_peer (struct GNUNET_TRANSPORT_TESTING_Handle 
*tth,
-                                     const char *cfgname,
-                                     int peer_id,
-                                     const struct GNUNET_MQ_MessageHandler 
*handlers,
-                                     GNUNET_TRANSPORT_NotifyConnect nc,
-                                     GNUNET_TRANSPORT_NotifyDisconnect nd,
-                                    void *cb_cls,
-                                     GNUNET_SCHEDULER_TaskCallback start_cb,
-                                     void *start_cb_cls);
+GNUNET_TRANSPORT_TESTING_start_peer (
+  struct GNUNET_TRANSPORT_TESTING_Handle *tth,
+  const char *cfgname,
+  int peer_id,
+  const struct GNUNET_MQ_MessageHandler *handlers,
+  GNUNET_TRANSPORT_NotifyConnect nc,
+  GNUNET_TRANSPORT_NotifyDisconnect nd,
+  void *cb_cls,
+  GNUNET_SCHEDULER_TaskCallback start_cb,
+  void *start_cb_cls);
 
 
 /**
@@ -306,7 +306,8 @@ GNUNET_TRANSPORT_TESTING_start_peer (struct 
GNUNET_TRANSPORT_TESTING_Handle *tth
  * @param p the peer
  */
 void
-GNUNET_TRANSPORT_TESTING_stop_peer (struct 
GNUNET_TRANSPORT_TESTING_PeerContext *pc);
+GNUNET_TRANSPORT_TESTING_stop_peer (
+  struct GNUNET_TRANSPORT_TESTING_PeerContext *pc);
 
 
 /**
@@ -318,10 +319,10 @@ GNUNET_TRANSPORT_TESTING_stop_peer (struct 
GNUNET_TRANSPORT_TESTING_PeerContext
  * @return #GNUNET_OK in success otherwise #GNUNET_SYSERR
  */
 int
-GNUNET_TRANSPORT_TESTING_restart_peer (struct 
GNUNET_TRANSPORT_TESTING_PeerContext *p,
-                                       GNUNET_SCHEDULER_TaskCallback 
restart_cb,
-                                       void *restart_cb_cls);
-
+GNUNET_TRANSPORT_TESTING_restart_peer (
+  struct GNUNET_TRANSPORT_TESTING_PeerContext *p,
+  GNUNET_SCHEDULER_TaskCallback restart_cb,
+  void *restart_cb_cls);
 
 
 /**
@@ -331,15 +332,17 @@ GNUNET_TRANSPORT_TESTING_restart_peer (struct 
GNUNET_TRANSPORT_TESTING_PeerConte
  *
  * @param p1 peer 1
  * @param p2 peer 2
- * @param cb the callback to call when both peers notified that they are 
connected
+ * @param cb the callback to call when both peers notified that they are
+ * connected
  * @param cls callback cls
  * @return a connect request handle
  */
 struct GNUNET_TRANSPORT_TESTING_ConnectRequest *
-GNUNET_TRANSPORT_TESTING_connect_peers (struct 
GNUNET_TRANSPORT_TESTING_PeerContext *p1,
-                                        struct 
GNUNET_TRANSPORT_TESTING_PeerContext *p2,
-                                        GNUNET_SCHEDULER_TaskCallback cb,
-                                        void *cls);
+GNUNET_TRANSPORT_TESTING_connect_peers (
+  struct GNUNET_TRANSPORT_TESTING_PeerContext *p1,
+  struct GNUNET_TRANSPORT_TESTING_PeerContext *p2,
+  GNUNET_SCHEDULER_TaskCallback cb,
+  void *cls);
 
 
 /**
@@ -350,7 +353,8 @@ GNUNET_TRANSPORT_TESTING_connect_peers (struct 
GNUNET_TRANSPORT_TESTING_PeerCont
  * @param cc a connect request handle
  */
 void
-GNUNET_TRANSPORT_TESTING_connect_peers_cancel (struct 
GNUNET_TRANSPORT_TESTING_ConnectRequest *cc);
+GNUNET_TRANSPORT_TESTING_connect_peers_cancel (
+  struct GNUNET_TRANSPORT_TESTING_ConnectRequest *cc);
 
 
 /**
@@ -359,9 +363,9 @@ GNUNET_TRANSPORT_TESTING_connect_peers_cancel (struct 
GNUNET_TRANSPORT_TESTING_C
  * @param cls closure
  * @param cc request matching the query
  */
-typedef void
-(*GNUNET_TRANSPORT_TESTING_ConnectContextCallback)(void *cls,
-                                                  struct 
GNUNET_TRANSPORT_TESTING_ConnectRequest *cc);
+typedef void (*GNUNET_TRANSPORT_TESTING_ConnectContextCallback) (
+  void *cls,
+  struct GNUNET_TRANSPORT_TESTING_ConnectRequest *cc);
 
 
 /**
@@ -369,14 +373,15 @@ typedef void
  *
  * @param p1 first peer
  * @param p2 second peer
- * @param cb function to call 
+ * @param cb function to call
  * @param cb_cls closure for @a cb
  */
 void
-GNUNET_TRANSPORT_TESTING_find_connecting_context (struct 
GNUNET_TRANSPORT_TESTING_PeerContext *p1,
-                                                 struct 
GNUNET_TRANSPORT_TESTING_PeerContext *p2,
-                                                 
GNUNET_TRANSPORT_TESTING_ConnectContextCallback cb,
-                                                 void *cb_cls);
+GNUNET_TRANSPORT_TESTING_find_connecting_context (
+  struct GNUNET_TRANSPORT_TESTING_PeerContext *p1,
+  struct GNUNET_TRANSPORT_TESTING_PeerContext *p2,
+  GNUNET_TRANSPORT_TESTING_ConnectContextCallback cb,
+  void *cb_cls);
 
 
 /* ********************** high-level process functions *************** */
@@ -390,10 +395,10 @@ GNUNET_TRANSPORT_TESTING_find_connecting_context (struct 
GNUNET_TRANSPORT_TESTIN
  * @param num_peers size of the @a p array
  * @param p the peers that were launched
  */
-typedef void
-(*GNUNET_TRANSPORT_TESTING_ConnectContinuation)(void *cls,
-                                                unsigned int num_peers,
-                                                struct 
GNUNET_TRANSPORT_TESTING_PeerContext *p[]);
+typedef void (*GNUNET_TRANSPORT_TESTING_ConnectContinuation) (
+  void *cls,
+  unsigned int num_peers,
+  struct GNUNET_TRANSPORT_TESTING_PeerContext *p[]);
 
 
 /**
@@ -423,7 +428,6 @@ struct GNUNET_TRANSPORT_TESTING_TestMessage
 GNUNET_NETWORK_STRUCT_END
 
 
-
 /**
  * Function called by the transport for each received message.
  *
@@ -432,11 +436,11 @@ GNUNET_NETWORK_STRUCT_END
  * @param sender sender of the message
  * @param message the message
  */
-typedef void
-(*GNUNET_TRANSPORT_TESTING_ReceiveCallback) (void *cls,
-                                             struct 
GNUNET_TRANSPORT_TESTING_PeerContext *receiver,
-                                             const struct GNUNET_PeerIdentity 
*sender,
-                                             const struct 
GNUNET_TRANSPORT_TESTING_TestMessage *message);
+typedef void (*GNUNET_TRANSPORT_TESTING_ReceiveCallback) (
+  void *cls,
+  struct GNUNET_TRANSPORT_TESTING_PeerContext *receiver,
+  const struct GNUNET_PeerIdentity *sender,
+  const struct GNUNET_TRANSPORT_TESTING_TestMessage *message);
 
 
 /**
@@ -447,10 +451,10 @@ typedef void
  * @param me peer experiencing the event
  * @param other peer that connected to @a me
  */
-typedef void
-(*GNUNET_TRANSPORT_TESTING_NotifyConnect) (void *cls,
-                                           struct 
GNUNET_TRANSPORT_TESTING_PeerContext *me,
-                                           const struct GNUNET_PeerIdentity 
*other);
+typedef void (*GNUNET_TRANSPORT_TESTING_NotifyConnect) (
+  void *cls,
+  struct GNUNET_TRANSPORT_TESTING_PeerContext *me,
+  const struct GNUNET_PeerIdentity *other);
 
 
 /**
@@ -461,10 +465,10 @@ typedef void
  * @param me peer experiencing the event
  * @param other peer that disconnected from @a me
  */
-typedef void
-(*GNUNET_TRANSPORT_TESTING_NotifyDisconnect) (void *cls,
-                                              struct 
GNUNET_TRANSPORT_TESTING_PeerContext *me,
-                                              const struct GNUNET_PeerIdentity 
*other);
+typedef void (*GNUNET_TRANSPORT_TESTING_NotifyDisconnect) (
+  void *cls,
+  struct GNUNET_TRANSPORT_TESTING_PeerContext *me,
+  const struct GNUNET_PeerIdentity *other);
 
 
 /**
@@ -593,7 +597,7 @@ struct GNUNET_TRANSPORT_TESTING_ConnectCheckContext
    * message.
    */
   uint32_t send_num_gen;
-  
+
   /* ******* internal state, clients should not mess with this **** */
 
   /**
@@ -625,7 +629,6 @@ struct GNUNET_TRANSPORT_TESTING_ConnectCheckContext
    * Array with @e num_peers entries.
    */
   struct GNUNET_TRANSPORT_TESTING_InternalPeerContext *ip;
-
 };
 
 
@@ -637,8 +640,9 @@ struct GNUNET_TRANSPORT_TESTING_ConnectCheckContext
  * @return NULL if @a peer was not found
  */
 struct GNUNET_TRANSPORT_TESTING_PeerContext *
-GNUNET_TRANSPORT_TESTING_find_peer (struct 
GNUNET_TRANSPORT_TESTING_ConnectCheckContext *ccc,
-                                    const struct GNUNET_PeerIdentity *peer);
+GNUNET_TRANSPORT_TESTING_find_peer (
+  struct GNUNET_TRANSPORT_TESTING_ConnectCheckContext *ccc,
+  const struct GNUNET_PeerIdentity *peer);
 
 
 /**
@@ -648,7 +652,8 @@ GNUNET_TRANSPORT_TESTING_find_peer (struct 
GNUNET_TRANSPORT_TESTING_ConnectCheck
  * abort the test, and a shutdown handler to clean up properly
  * on exit.
  *
- * @param cls closure of type `struct 
GNUNET_TRANSPORT_TESTING_ConnectCheckContext`
+ * @param cls closure of type `struct
+ * GNUNET_TRANSPORT_TESTING_ConnectCheckContext`
  * @param tth_ initialized testing handle
  * @param test_plugin_ name of the plugin
  * @param test_name_ name of the test
@@ -657,12 +662,13 @@ GNUNET_TRANSPORT_TESTING_find_peer (struct 
GNUNET_TRANSPORT_TESTING_ConnectCheck
  * @return #GNUNET_SYSERR on error
  */
 int
-GNUNET_TRANSPORT_TESTING_connect_check (void *cls,
-                                        struct GNUNET_TRANSPORT_TESTING_Handle 
*tth_,
-                                        const char *test_plugin_,
-                                        const char *test_name_,
-                                        unsigned int num_peers,
-                                        char *cfg_files[]);
+GNUNET_TRANSPORT_TESTING_connect_check (
+  void *cls,
+  struct GNUNET_TRANSPORT_TESTING_Handle *tth_,
+  const char *test_plugin_,
+  const char *test_name_,
+  unsigned int num_peers,
+  char *cfg_files[]);
 
 
 /**
@@ -677,13 +683,13 @@ GNUNET_TRANSPORT_TESTING_connect_check (void *cls,
  * @param cfg_files array of names of configuration files for the peers
  * @return #GNUNET_SYSERR on error
  */
-typedef int
-(*GNUNET_TRANSPORT_TESTING_CheckCallback)(void *cls,
-                                          struct 
GNUNET_TRANSPORT_TESTING_Handle *tth_,
-                                          const char *test_plugin_,
-                                          const char *test_name_,
-                                          unsigned int num_peers,
-                                          char *cfg_files[]);
+typedef int (*GNUNET_TRANSPORT_TESTING_CheckCallback) (
+  void *cls,
+  struct GNUNET_TRANSPORT_TESTING_Handle *tth_,
+  const char *test_plugin_,
+  const char *test_name_,
+  unsigned int num_peers,
+  char *cfg_files[]);
 
 
 /**
@@ -712,8 +718,12 @@ GNUNET_TRANSPORT_TESTING_main_ (const char *argv0,
  * @param check_cls closure for @a check
  * @return #GNUNET_OK on success
  */
-#define GNUNET_TRANSPORT_TESTING_main(num_peers,check,check_cls) \
-  GNUNET_TRANSPORT_TESTING_main_ (argv[0], __FILE__, num_peers, check, 
check_cls)
+#define GNUNET_TRANSPORT_TESTING_main(num_peers, check, check_cls) \
+  GNUNET_TRANSPORT_TESTING_main_ (argv[0],                         \
+                                  __FILE__,                        \
+                                  num_peers,                       \
+                                  check,                           \
+                                  check_cls)
 
 /* ***************** Convenience functions for sending ********* */
 
@@ -725,7 +735,8 @@ GNUNET_TRANSPORT_TESTING_main_ (const char *argv0,
  * @param sender the sending peer
  * @param receiver the receiving peer
  * @param mtype message type to use
- * @param msize size of the message, at least `sizeof (struct 
GNUNET_TRANSPORT_TESTING_TestMessage)`
+ * @param msize size of the message, at least `sizeof (struct
+ * GNUNET_TRANSPORT_TESTING_TestMessage)`
  * @param num unique message number
  * @param cont continuation to call after transmission
  * @param cont_cls closure for @a cont
@@ -734,13 +745,14 @@ GNUNET_TRANSPORT_TESTING_main_ (const char *argv0,
  *         #GNUNET_SYSERR if @a msize is illegal
  */
 int
-GNUNET_TRANSPORT_TESTING_send (struct GNUNET_TRANSPORT_TESTING_PeerContext 
*sender,
-                              struct GNUNET_TRANSPORT_TESTING_PeerContext 
*receiver,
-                              uint16_t mtype,
-                              uint16_t msize,
-                              uint32_t num,
-                              GNUNET_SCHEDULER_TaskCallback cont,
-                              void *cont_cls);
+GNUNET_TRANSPORT_TESTING_send (
+  struct GNUNET_TRANSPORT_TESTING_PeerContext *sender,
+  struct GNUNET_TRANSPORT_TESTING_PeerContext *receiver,
+  uint16_t mtype,
+  uint16_t msize,
+  uint32_t num,
+  GNUNET_SCHEDULER_TaskCallback cont,
+  void *cont_cls);
 
 
 /**
@@ -771,14 +783,14 @@ struct GNUNET_TRANSPORT_TESTING_SendClosure
    * the message size, can be NULL in which case the message
    * size is the default.
    */
-  size_t (*get_size_cb)(unsigned int n);
-  
+  size_t (*get_size_cb) (unsigned int n);
+
   /**
    * Number of messages to be transmitted in a loop.
    * Use zero for "forever" (until external shutdown).
    */
   unsigned int num_messages;
-  
+
   /**
    * Function to call after all transmissions, can be NULL.
    */
@@ -788,12 +800,11 @@ struct GNUNET_TRANSPORT_TESTING_SendClosure
    * Closure for @e cont.
    */
   void *cont_cls;
-  
 };
 
 
 /**
- * Task that sends a minimalistic test message from the 
+ * Task that sends a minimalistic test message from the
  * first peer to the second peer.
  *
  * @param cls the `struct GNUNET_TRANSPORT_TESTING_SendClosure`
@@ -804,14 +815,14 @@ void
 GNUNET_TRANSPORT_TESTING_simple_send (void *cls);
 
 /**
- * Size of a message sent with 
+ * Size of a message sent with
  * #GNUNET_TRANSPORT_TESTING_large_send().  Big enough
  * to usually force defragmentation.
  */
 #define GNUNET_TRANSPORT_TESTING_LARGE_MESSAGE_SIZE 2600
 
 /**
- * Task that sends a large test message from the 
+ * Task that sends a large test message from the
  * first peer to the second peer.
  *
  * @param cls the `struct GNUNET_TRANSPORT_TESTING_SendClosure`
@@ -833,9 +844,10 @@ GNUNET_TRANSPORT_TESTING_large_send (void *cls);
  * @param other peer that connected.
  */
 void
-GNUNET_TRANSPORT_TESTING_log_connect (void *cls,
-                                      struct 
GNUNET_TRANSPORT_TESTING_PeerContext *me,
-                                      const struct GNUNET_PeerIdentity *other);
+GNUNET_TRANSPORT_TESTING_log_connect (
+  void *cls,
+  struct GNUNET_TRANSPORT_TESTING_PeerContext *me,
+  const struct GNUNET_PeerIdentity *other);
 
 
 /**
@@ -846,10 +858,10 @@ GNUNET_TRANSPORT_TESTING_log_connect (void *cls,
  * @param other peer that disconnected.
  */
 void
-GNUNET_TRANSPORT_TESTING_log_disconnect (void *cls,
-                                         struct 
GNUNET_TRANSPORT_TESTING_PeerContext *me,
-                                         const struct GNUNET_PeerIdentity 
*other);
-
+GNUNET_TRANSPORT_TESTING_log_disconnect (
+  void *cls,
+  struct GNUNET_TRANSPORT_TESTING_PeerContext *me,
+  const struct GNUNET_PeerIdentity *other);
 
 
 /* ********************** low-level filename functions *************** */
@@ -875,8 +887,7 @@ GNUNET_TRANSPORT_TESTING_get_test_name (const char *file);
  * @return configuration name to use
  */
 char *
-GNUNET_TRANSPORT_TESTING_get_config_name (const char *file,
-                                          int count);
+GNUNET_TRANSPORT_TESTING_get_config_name (const char *file, int count);
 
 
 /**
diff --git a/src/transport/transport.h b/src/transport/transport.h
index d2a3a262b..ed89940cc 100644
--- a/src/transport/transport.h
+++ b/src/transport/transport.h
@@ -123,10 +123,21 @@ struct ConnectInfoMessage
    */
   struct GNUNET_MessageHeader header;
 
+#if (defined(GNUNET_TRANSPORT_COMMUNICATION_VERSION) || \
+     defined(GNUNET_TRANSPORT_CORE_VERSION))
+
+  /**
+   * Always zero, for alignment.
+   */
+  uint32_t reserved GNUNET_PACKED;
+
+#else
+
   /**
    * Current outbound quota for this peer
    */
   struct GNUNET_BANDWIDTH_Value32NBO quota_out;
+#endif
 
   /**
    * Identity of the new neighbour.
@@ -163,6 +174,8 @@ struct DisconnectInfoMessage
  * Message used to set a particular bandwidth quota.  Sent TO the
  * service to set an incoming quota, sent FROM the service to update
  * an outgoing quota.
+ *
+ * NOTE: no longer used in TNG!
  */
 struct QuotaSetMessage
 {
@@ -215,6 +228,13 @@ struct SendOkMessage
    */
   struct GNUNET_MessageHeader header;
 
+#if (defined(GNUNET_TRANSPORT_COMMUNICATION_VERSION) || \
+     defined(GNUNET_TRANSPORT_CORE_VERSION))
+
+  uint32_t reserved GNUNET_PACKED;
+
+#else
+
   /**
    * #GNUNET_OK if the transmission succeeded,
    * #GNUNET_SYSERR if it failed (i.e. network disconnect);
@@ -229,11 +249,13 @@ struct SendOkMessage
   uint16_t bytes_msg GNUNET_PACKED;
 
   /**
-   * Size of message sent over wire
-   * Includes plugin and protocol specific overhead
+   * Size of message sent over wire.
+   * Includes plugin and protocol specific overheads.
    */
   uint32_t bytes_physical GNUNET_PACKED;
 
+#endif
+
   /**
    * Which peer can send more now?
    */
@@ -241,6 +263,32 @@ struct SendOkMessage
 };
 
 
+/**
+ * Message used to notify the transport API that it can
+ * send another message to the transport service.
+ * (Used to implement flow control.)
+ */
+struct RecvOkMessage
+{
+
+  /**
+   * Type will be #GNUNET_MESSAGE_TYPE_TRANSPORT_RECV_OK
+   */
+  struct GNUNET_MessageHeader header;
+
+  /**
+   * Number of messages by which to increase the window, greater or
+   * equal to one.
+   */
+  uint32_t increase_window_delta GNUNET_PACKED;
+
+  /**
+   * Which peer can CORE handle more from now?
+   */
+  struct GNUNET_PeerIdentity peer;
+};
+
+
 /**
  * Message used to notify the transport service about a message
  * to be transmitted to another peer.  The actual message follows.
@@ -258,10 +306,14 @@ struct OutboundMessage
    */
   uint32_t reserved GNUNET_PACKED;
 
+#if ! (defined(GNUNET_TRANSPORT_COMMUNICATION_VERSION) || \
+       defined(GNUNET_TRANSPORT_CORE_VERSION))
+
   /**
    * Allowed delay.
    */
   struct GNUNET_TIME_RelativeNBO timeout;
+#endif
 
   /**
    * Which peer should receive the message?
diff --git a/src/transport/transport_api2_core.c 
b/src/transport/transport_api2_core.c
index f00d00a44..a3c49e94f 100644
--- a/src/transport/transport_api2_core.c
+++ b/src/transport/transport_api2_core.c
@@ -32,13 +32,23 @@
 #include "gnunet_transport_core_service.h"
 #include "transport.h"
 
-#define LOG(kind,...) GNUNET_log_from (kind, "transport-api-core",__VA_ARGS__)
+#define LOG(kind, ...) GNUNET_log_from (kind, "transport-api-core", 
__VA_ARGS__)
 
 /**
  * How large to start with for the hashmap of neighbours.
  */
 #define STARTING_NEIGHBOURS_SIZE 16
 
+/**
+ * Window size. How many messages to the same target do we pass
+ * to TRANSPORT without a SEND_OK in between? Small values limit
+ * thoughput, large values will increase latency.
+ *
+ * FIXME-OPTIMIZE: find out what good values are experimentally,
+ * maybe set adaptively (i.e. to observed available bandwidth).
+ */
+#define SEND_WINDOW_SIZE 4
+
 
 /**
  * Entry in hash table of all of our current (connected) neighbours.
@@ -72,46 +82,27 @@ struct Neighbour
   void *handlers_cls;
 
   /**
-   * Entry in our readyness heap (which is sorted by @e next_ready
-   * value).  NULL if there is no pending transmission request for
-   * this neighbour or if we're waiting for @e is_ready to become
-   * true AFTER the @e out_tracker suggested that this peer's quota
-   * has been satisfied (so once @e is_ready goes to #GNUNET_YES,
-   * we should immediately go back into the heap).
+   * How many messages can we still send to this peer before we should
+   * throttle?
    */
-  struct GNUNET_CONTAINER_HeapNode *hn;
+  unsigned int ready_window;
 
   /**
-   * Task to trigger MQ when we have enough bandwidth for the
-   * next transmission.
+   * Used to indicate our status if @e env is non-NULL.  Set to
+   * #GNUNET_YES if we did pass a message to the MQ and are waiting
+   * for the call to #notify_send_done(). Set to #GNUNET_NO if the @e
+   * ready_window is 0 and @e env is waiting for a
+   * #GNUNET_MESSAGE_TYPE_TRANSPORT_RECV_OK?
    */
-  struct GNUNET_SCHEDULER_Task *timeout_task;
-
-  /**
-   * Outbound bandwidh tracker.
-   */
-  struct GNUNET_BANDWIDTH_Tracker out_tracker;
-
-  /**
-   * Sending consumed more bytes on wire than payload was announced
-   * This overhead is added to the delay of next sending operation
-   */
-  unsigned long long traffic_overhead;
-
-  /**
-   * Is this peer currently ready to receive a message?
-   */
-  int is_ready;
+  int16_t awaiting_done;
 
   /**
    * Size of the message in @e env.
    */
   uint16_t env_size;
-
 };
 
 
-
 /**
  * Handle for the transport service (includes all of the
  * state for the transport service).
@@ -140,11 +131,6 @@ struct GNUNET_TRANSPORT_CoreHandle
    */
   GNUNET_TRANSPORT_NotifyDisconnect nd_cb;
 
-  /**
-   * function to call on excess bandwidth events
-   */
-  GNUNET_TRANSPORT_NotifyExcessBandwidth neb_cb;
-
   /**
    * My client connection to the transport service.
    */
@@ -181,7 +167,6 @@ struct GNUNET_TRANSPORT_CoreHandle
    * (if #GNUNET_NO, then @e self is all zeros!).
    */
   int check_self;
-
 };
 
 
@@ -206,31 +191,7 @@ static struct Neighbour *
 neighbour_find (struct GNUNET_TRANSPORT_CoreHandle *h,
                 const struct GNUNET_PeerIdentity *peer)
 {
-  return GNUNET_CONTAINER_multipeermap_get (h->neighbours,
-                                            peer);
-}
-
-
-/**
- * Function called by the bandwidth tracker if we have excess
- * bandwidth.
- *
- * @param cls the `struct Neighbour` that has excess bandwidth
- */
-static void
-notify_excess_cb (void *cls)
-{
-  struct Neighbour *n = cls;
-  struct GNUNET_TRANSPORT_CoreHandle *h = n->h;
-
-  LOG (GNUNET_ERROR_TYPE_DEBUG,
-       "Notifying CORE that more bandwidth is available for %s\n",
-       GNUNET_i2s (&n->id));
-
-  if (NULL != h->neb_cb)
-    h->neb_cb (h->cls,
-               &n->id,
-               n->handlers_cls);
+  return GNUNET_CONTAINER_multipeermap_get (h->neighbours, peer);
 }
 
 
@@ -245,9 +206,7 @@ notify_excess_cb (void *cls)
  *         #GNUNET_NO if not.
  */
 static int
-neighbour_delete (void *cls,
-                 const struct GNUNET_PeerIdentity *key,
-                  void *value)
+neighbour_delete (void *cls, const struct GNUNET_PeerIdentity *key, void 
*value)
 {
   struct GNUNET_TRANSPORT_CoreHandle *handle = cls;
   struct Neighbour *n = value;
@@ -255,16 +214,8 @@ neighbour_delete (void *cls,
   LOG (GNUNET_ERROR_TYPE_DEBUG,
        "Dropping entry for neighbour `%s'.\n",
        GNUNET_i2s (key));
-  GNUNET_BANDWIDTH_tracker_notification_stop (&n->out_tracker);
   if (NULL != handle->nd_cb)
-    handle->nd_cb (handle->cls,
-                   &n->id,
-                   n->handlers_cls);
-  if (NULL != n->timeout_task)
-  {
-    GNUNET_SCHEDULER_cancel (n->timeout_task);
-    n->timeout_task = NULL;
-  }
+    handle->nd_cb (handle->cls, &n->id, n->handlers_cls);
   if (NULL != n->env)
   {
     GNUNET_MQ_send_cancel (n->env);
@@ -272,10 +223,9 @@ neighbour_delete (void *cls,
   }
   GNUNET_MQ_destroy (n->mq);
   GNUNET_assert (NULL == n->mq);
-  GNUNET_assert (GNUNET_YES ==
-                 GNUNET_CONTAINER_multipeermap_remove (handle->neighbours,
-                                                       key,
-                                                       n));
+  GNUNET_assert (
+    GNUNET_YES ==
+    GNUNET_CONTAINER_multipeermap_remove (handle->neighbours, key, n));
   GNUNET_free (n);
   return GNUNET_YES;
 }
@@ -291,8 +241,7 @@ neighbour_delete (void *cls,
  * @param error error code
  */
 static void
-mq_error_handler (void *cls,
-                  enum GNUNET_MQ_Error error)
+mq_error_handler (void *cls, enum GNUNET_MQ_Error error)
 {
   struct GNUNET_TRANSPORT_CoreHandle *h = cls;
 
@@ -306,57 +255,42 @@ mq_error_handler (void *cls,
  * A message from the handler's message queue to a neighbour was
  * transmitted.  Now trigger (possibly delayed) notification of the
  * neighbour's message queue that we are done and thus ready for
- * the next message.
+ * the next message.  Note that the MQ being ready is independent
+ * of the send window, as we may queue many messages and simply
+ * not pass them to TRANSPORT if the send window is insufficient.
  *
  * @param cls the `struct Neighbour` where the message was sent
  */
 static void
-notify_send_done_fin (void *cls)
+notify_send_done (void *cls)
 {
   struct Neighbour *n = cls;
 
-  n->timeout_task = NULL;
-  n->is_ready = GNUNET_YES;
+  n->awaiting_done = GNUNET_NO;
+  n->env = NULL;
   GNUNET_MQ_impl_send_continue (n->mq);
 }
 
 
 /**
- * A message from the handler's message queue to a neighbour was
- * transmitted.  Now trigger (possibly delayed) notification of the
- * neighbour's message queue that we are done and thus ready for
- * the next message.
+ * We have an envelope waiting for transmission at @a n, and
+ * our transmission window is positive. Perform the transmission.
  *
- * @param cls the `struct Neighbour` where the message was sent
+ * @param n neighbour to perform transmission for
  */
 static void
-notify_send_done (void *cls)
+do_send (struct Neighbour *n)
 {
-  struct Neighbour *n = cls;
-  struct GNUNET_TIME_Relative delay;
-
-  n->timeout_task = NULL;
-  if (NULL != n->env)
-  {
-    GNUNET_BANDWIDTH_tracker_consume (&n->out_tracker,
-                                      n->env_size + n->traffic_overhead);
-    n->env = NULL;
-    n->traffic_overhead = 0;
-  }
-  delay = GNUNET_BANDWIDTH_tracker_get_delay (&n->out_tracker,
-                                              128);
-  if (0 == delay.rel_value_us)
-  {
-    n->is_ready = GNUNET_YES;
-    GNUNET_MQ_impl_send_continue (n->mq);
-    return;
-  }
-  GNUNET_MQ_impl_send_in_flight (n->mq);
-  /* cannot send even a small message without violating
-     quota, wait a before allowing MQ to send next message */
-  n->timeout_task = GNUNET_SCHEDULER_add_delayed (delay,
-                                                  &notify_send_done_fin,
-                                                  n);
+  GNUNET_assert (0 < n->ready_window);
+  GNUNET_assert (NULL != n->env);
+  n->ready_window--;
+  n->awaiting_done = GNUNET_YES;
+  GNUNET_MQ_notify_sent (n->env, &notify_send_done, n);
+  GNUNET_MQ_send (n->h->mq, n->env);
+  LOG (GNUNET_ERROR_TYPE_DEBUG,
+       "Passed message of type %u for neighbour `%s' to TRANSPORT.\n",
+       ntohs (GNUNET_MQ_env_get_msg (n->env)->type),
+       GNUNET_i2s (&n->id));
 }
 
 
@@ -376,11 +310,9 @@ mq_send_impl (struct GNUNET_MQ_Handle *mq,
               void *impl_state)
 {
   struct Neighbour *n = impl_state;
-  struct GNUNET_TRANSPORT_CoreHandle *h = n->h;
   struct OutboundMessage *obm;
   uint16_t msize;
 
-  GNUNET_assert (GNUNET_YES == n->is_ready);
   msize = ntohs (msg->size);
   if (msize >= GNUNET_MAX_MESSAGE_SIZE - sizeof (*obm))
   {
@@ -388,25 +320,24 @@ mq_send_impl (struct GNUNET_MQ_Handle *mq,
     GNUNET_MQ_impl_send_continue (mq);
     return;
   }
-  GNUNET_assert (NULL == n->env);
-  n->env = GNUNET_MQ_msg_nested_mh (obm,
-                                    GNUNET_MESSAGE_TYPE_TRANSPORT_SEND,
-                                    msg);
-  obm->reserved = htonl (0);
-  obm->timeout = GNUNET_TIME_relative_hton (GNUNET_TIME_UNIT_MINUTES); /* 
FIXME: to be removed */
-  obm->peer = n->id;
-  GNUNET_assert (NULL == n->timeout_task);
-  n->is_ready = GNUNET_NO;
-  n->env_size = ntohs (msg->size);
-  GNUNET_MQ_notify_sent (n->env,
-                         &notify_send_done,
-                         n);
-  GNUNET_MQ_send (h->mq,
-                  n->env);
   LOG (GNUNET_ERROR_TYPE_DEBUG,
-       "Queued message of type %u for neighbour `%s'.\n",
+       "CORE requested transmission of message of type %u to neighbour 
`%s'.\n",
        ntohs (msg->type),
        GNUNET_i2s (&n->id));
+
+  GNUNET_assert (NULL == n->env);
+  n->env =
+    GNUNET_MQ_msg_nested_mh (obm, GNUNET_MESSAGE_TYPE_TRANSPORT_SEND, msg);
+  n->env_size = ntohs (msg->size);
+  obm->reserved = htonl (0);
+  obm->peer = n->id;
+  if (0 == n->ready_window)
+  {
+    LOG (GNUNET_ERROR_TYPE_DEBUG,
+         "Flow control delays transmission to CORE until we see SEND_OK.\n");
+    return; /* can't send yet, need to wait for SEND_OK */
+  }
+  do_send (n);
 }
 
 
@@ -418,8 +349,7 @@ mq_send_impl (struct GNUNET_MQ_Handle *mq,
  * @param impl_state state of the implementation
  */
 static void
-mq_destroy_impl (struct GNUNET_MQ_Handle *mq,
-                 void *impl_state)
+mq_destroy_impl (struct GNUNET_MQ_Handle *mq, void *impl_state)
 {
   struct Neighbour *n = impl_state;
 
@@ -436,19 +366,22 @@ mq_destroy_impl (struct GNUNET_MQ_Handle *mq,
  * @param impl_state state specific to the implementation
  */
 static void
-mq_cancel_impl (struct GNUNET_MQ_Handle *mq,
-                void *impl_state)
+mq_cancel_impl (struct GNUNET_MQ_Handle *mq, void *impl_state)
 {
   struct Neighbour *n = impl_state;
 
-  GNUNET_assert (GNUNET_NO == n->is_ready);
-  if (NULL != n->env)
+  n->ready_window++;
+  if (GNUNET_YES == n->awaiting_done)
   {
     GNUNET_MQ_send_cancel (n->env);
     n->env = NULL;
+    n->awaiting_done = GNUNET_NO;
+  }
+  else
+  {
+    GNUNET_assert (0 == n->ready_window);
+    n->env = NULL;
   }
-
-  n->is_ready = GNUNET_YES;
 }
 
 
@@ -461,8 +394,7 @@ mq_cancel_impl (struct GNUNET_MQ_Handle *mq,
  * @param error error code
  */
 static void
-peer_mq_error_handler (void *cls,
-                       enum GNUNET_MQ_Error error)
+peer_mq_error_handler (void *cls, enum GNUNET_MQ_Error error)
 {
   /* struct Neighbour *n = cls; */
 
@@ -470,29 +402,6 @@ peer_mq_error_handler (void *cls,
 }
 
 
-/**
- * The outbound quota has changed in a way that may require
- * us to reset the timeout.  Update the timeout.
- *
- * @param cls the `struct Neighbour` for which the timeout changed
- */
-static void
-outbound_bw_tracker_update (void *cls)
-{
-  struct Neighbour *n = cls;
-  struct GNUNET_TIME_Relative delay;
-
-  if (NULL == n->timeout_task)
-    return;
-  delay = GNUNET_BANDWIDTH_tracker_get_delay (&n->out_tracker,
-                                              128);
-  GNUNET_SCHEDULER_cancel (n->timeout_task);
-  n->timeout_task = GNUNET_SCHEDULER_add_delayed (delay,
-                                                  &notify_send_done,
-                                                  n);
-}
-
-
 /**
  * Function we use for handling incoming connect messages.
  *
@@ -500,18 +409,15 @@ outbound_bw_tracker_update (void *cls)
  * @param cim message received
  */
 static void
-handle_connect (void *cls,
-                const struct ConnectInfoMessage *cim)
+handle_connect (void *cls, const struct ConnectInfoMessage *cim)
 {
   struct GNUNET_TRANSPORT_CoreHandle *h = cls;
   struct Neighbour *n;
 
   LOG (GNUNET_ERROR_TYPE_DEBUG,
-       "Receiving CONNECT message for `%s' with quota %u\n",
-       GNUNET_i2s (&cim->id),
-       ntohl (cim->quota_out.value__));
-  n = neighbour_find (h,
-                     &cim->id);
+       "Receiving CONNECT message for `%s'\n",
+       GNUNET_i2s (&cim->id));
+  n = neighbour_find (h, &cim->id);
   if (NULL != n)
   {
     GNUNET_break (0);
@@ -521,23 +427,14 @@ handle_connect (void *cls,
   n = GNUNET_new (struct Neighbour);
   n->id = cim->id;
   n->h = h;
-  n->is_ready = GNUNET_YES;
-  n->traffic_overhead = 0;
-  GNUNET_BANDWIDTH_tracker_init2 (&n->out_tracker,
-                                  &outbound_bw_tracker_update,
-                                  n,
-                                  GNUNET_CONSTANTS_DEFAULT_BW_IN_OUT,
-                                  MAX_BANDWIDTH_CARRY_S,
-                                  &notify_excess_cb,
-                                  n);
+  n->ready_window = SEND_WINDOW_SIZE;
   GNUNET_assert (GNUNET_OK ==
-                 GNUNET_CONTAINER_multipeermap_put (h->neighbours,
-                                                    &n->id,
-                                                    n,
-                                                    
GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY));
+                 GNUNET_CONTAINER_multipeermap_put (
+                   h->neighbours,
+                   &n->id,
+                   n,
+                   GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY));
 
-  GNUNET_BANDWIDTH_tracker_update_quota (&n->out_tracker,
-                                         cim->quota_out);
   n->mq = GNUNET_MQ_queue_for_callbacks (&mq_send_impl,
                                          &mq_destroy_impl,
                                          &mq_cancel_impl,
@@ -547,11 +444,8 @@ handle_connect (void *cls,
                                          n);
   if (NULL != h->nc_cb)
   {
-    n->handlers_cls = h->nc_cb (h->cls,
-                                &n->id,
-                                n->mq);
-    GNUNET_MQ_set_handlers_closure (n->mq,
-                                    n->handlers_cls);
+    n->handlers_cls = h->nc_cb (h->cls, &n->id, n->mq);
+    GNUNET_MQ_set_handlers_closure (n->mq, n->handlers_cls);
   }
 }
 
@@ -563,8 +457,7 @@ handle_connect (void *cls,
  * @param dim message received
  */
 static void
-handle_disconnect (void *cls,
-                   const struct DisconnectInfoMessage *dim)
+handle_disconnect (void *cls, const struct DisconnectInfoMessage *dim)
 {
   struct GNUNET_TRANSPORT_CoreHandle *h = cls;
   struct Neighbour *n;
@@ -573,18 +466,14 @@ handle_disconnect (void *cls,
   LOG (GNUNET_ERROR_TYPE_DEBUG,
        "Receiving DISCONNECT message for `%s'.\n",
        GNUNET_i2s (&dim->peer));
-  n = neighbour_find (h,
-                     &dim->peer);
+  n = neighbour_find (h, &dim->peer);
   if (NULL == n)
   {
     GNUNET_break (0);
     disconnect_and_schedule_reconnect (h);
     return;
   }
-  GNUNET_assert (GNUNET_YES ==
-                 neighbour_delete (h,
-                                   &dim->peer,
-                                   n));
+  GNUNET_assert (GNUNET_YES == neighbour_delete (h, &dim->peer, n));
 }
 
 
@@ -595,24 +484,15 @@ handle_disconnect (void *cls,
  * @param okm message received
  */
 static void
-handle_send_ok (void *cls,
-                const struct SendOkMessage *okm)
+handle_send_ok (void *cls, const struct SendOkMessage *okm)
 {
   struct GNUNET_TRANSPORT_CoreHandle *h = cls;
   struct Neighbour *n;
-  uint16_t bytes_msg;
-  uint32_t bytes_physical;
 
-  bytes_msg = ntohs (okm->bytes_msg);
-  bytes_physical = ntohl (okm->bytes_physical);
   LOG (GNUNET_ERROR_TYPE_DEBUG,
-       "Receiving SEND_OK message, transmission to %s %s.\n",
-       GNUNET_i2s (&okm->peer),
-       (GNUNET_OK == ntohs (okm->success))
-       ? "succeeded"
-       : "failed");
-  n = neighbour_find (h,
-                      &okm->peer);
+       "Receiving SEND_OK message for transmission to %s\n",
+       GNUNET_i2s (&okm->peer));
+  n = neighbour_find (h, &okm->peer);
   if (NULL == n)
   {
     /* We should never get a 'SEND_OK' for a peer that we are not
@@ -621,14 +501,9 @@ handle_send_ok (void *cls,
     disconnect_and_schedule_reconnect (h);
     return;
   }
-  if (bytes_physical > bytes_msg)
-  {
-    LOG (GNUNET_ERROR_TYPE_DEBUG,
-         "Overhead for %u byte message was %u\n",
-         (unsigned int) bytes_msg,
-         (unsigned int) (bytes_physical - bytes_msg));
-    n->traffic_overhead += bytes_physical - bytes_msg;
-  }
+  n->ready_window++;
+  if ((NULL != n->env) && (1 == n->ready_window))
+    do_send (n);
 }
 
 
@@ -639,8 +514,7 @@ handle_send_ok (void *cls,
  * @param im message received
  */
 static int
-check_recv (void *cls,
-           const struct InboundMessage *im)
+check_recv (void *cls, const struct InboundMessage *im)
 {
   const struct GNUNET_MessageHeader *imm;
   uint16_t size;
@@ -668,12 +542,11 @@ check_recv (void *cls,
  * @param im message received
  */
 static void
-handle_recv (void *cls,
-             const struct InboundMessage *im)
+handle_recv (void *cls, const struct InboundMessage *im)
 {
   struct GNUNET_TRANSPORT_CoreHandle *h = cls;
-  const struct GNUNET_MessageHeader *imm
-    = (const struct GNUNET_MessageHeader *) &im[1];
+  const struct GNUNET_MessageHeader *imm =
+    (const struct GNUNET_MessageHeader *) &im[1];
   struct Neighbour *n;
 
   LOG (GNUNET_ERROR_TYPE_DEBUG,
@@ -681,46 +554,14 @@ handle_recv (void *cls,
        (unsigned int) ntohs (imm->type),
        (unsigned int) ntohs (imm->size),
        GNUNET_i2s (&im->peer));
-  n = neighbour_find (h,
-                     &im->peer);
-  if (NULL == n)
-  {
-    GNUNET_break (0);
-    disconnect_and_schedule_reconnect (h);
-    return;
-  }
-  GNUNET_MQ_inject_message (n->mq,
-                            imm);
-}
-
-
-/**
- * Function we use for handling incoming set quota messages.
- *
- * @param cls closure, a `struct GNUNET_TRANSPORT_CoreHandle *`
- * @param msg message received
- */
-static void
-handle_set_quota (void *cls,
-                  const struct QuotaSetMessage *qm)
-{
-  struct GNUNET_TRANSPORT_CoreHandle *h = cls;
-  struct Neighbour *n;
-
-  n = neighbour_find (h,
-                     &qm->peer);
+  n = neighbour_find (h, &im->peer);
   if (NULL == n)
   {
     GNUNET_break (0);
     disconnect_and_schedule_reconnect (h);
     return;
   }
-  LOG (GNUNET_ERROR_TYPE_DEBUG,
-       "Receiving SET_QUOTA message for `%s' with quota %u\n",
-       GNUNET_i2s (&qm->peer),
-       (unsigned int) ntohl (qm->quota.value__));
-  GNUNET_BANDWIDTH_tracker_update_quota (&n->out_tracker,
-                                         qm->quota);
+  GNUNET_MQ_inject_message (n->mq, imm);
 }
 
 
@@ -733,46 +574,36 @@ static void
 reconnect (void *cls)
 {
   struct GNUNET_TRANSPORT_CoreHandle *h = cls;
-  struct GNUNET_MQ_MessageHandler handlers[] = {
-    GNUNET_MQ_hd_fixed_size (connect,
-                             GNUNET_MESSAGE_TYPE_TRANSPORT_CONNECT,
-                             struct ConnectInfoMessage,
-                             h),
-    GNUNET_MQ_hd_fixed_size (disconnect,
-                             GNUNET_MESSAGE_TYPE_TRANSPORT_DISCONNECT,
-                             struct DisconnectInfoMessage,
-                             h),
-    GNUNET_MQ_hd_fixed_size (send_ok,
-                             GNUNET_MESSAGE_TYPE_TRANSPORT_SEND_OK,
-                             struct SendOkMessage,
-                             h),
-    GNUNET_MQ_hd_var_size (recv,
-                           GNUNET_MESSAGE_TYPE_TRANSPORT_RECV,
-                           struct InboundMessage,
-                           h),
-    GNUNET_MQ_hd_fixed_size (set_quota,
-                             GNUNET_MESSAGE_TYPE_TRANSPORT_SET_QUOTA,
-                             struct QuotaSetMessage,
-                             h),
-    GNUNET_MQ_handler_end ()
-  };
+  struct GNUNET_MQ_MessageHandler handlers[] =
+    {GNUNET_MQ_hd_fixed_size (connect,
+                              GNUNET_MESSAGE_TYPE_TRANSPORT_CONNECT,
+                              struct ConnectInfoMessage,
+                              h),
+     GNUNET_MQ_hd_fixed_size (disconnect,
+                              GNUNET_MESSAGE_TYPE_TRANSPORT_DISCONNECT,
+                              struct DisconnectInfoMessage,
+                              h),
+     GNUNET_MQ_hd_fixed_size (send_ok,
+                              GNUNET_MESSAGE_TYPE_TRANSPORT_SEND_OK,
+                              struct SendOkMessage,
+                              h),
+     GNUNET_MQ_hd_var_size (recv,
+                            GNUNET_MESSAGE_TYPE_TRANSPORT_RECV,
+                            struct InboundMessage,
+                            h),
+     GNUNET_MQ_handler_end ()};
   struct GNUNET_MQ_Envelope *env;
   struct StartMessage *s;
   uint32_t options;
 
   h->reconnect_task = NULL;
-  LOG (GNUNET_ERROR_TYPE_DEBUG,
-       "Connecting to transport service.\n");
+  LOG (GNUNET_ERROR_TYPE_DEBUG, "Connecting to transport service.\n");
   GNUNET_assert (NULL == h->mq);
-  h->mq = GNUNET_CLIENT_connect (h->cfg,
-                                 "transport",
-                                 handlers,
-                                 &mq_error_handler,
-                                 h);
+  h->mq =
+    GNUNET_CLIENT_connect (h->cfg, "transport", handlers, &mq_error_handler, 
h);
   if (NULL == h->mq)
     return;
-  env = GNUNET_MQ_msg (s,
-                       GNUNET_MESSAGE_TYPE_TRANSPORT_START);
+  env = GNUNET_MQ_msg (s, GNUNET_MESSAGE_TYPE_TRANSPORT_START);
   options = 0;
   if (h->check_self)
     options |= 1;
@@ -780,8 +611,7 @@ reconnect (void *cls)
     options |= 2;
   s->options = htonl (options);
   s->self = h->self;
-  GNUNET_MQ_send (h->mq,
-                  env);
+  GNUNET_MQ_send (h->mq, env);
 }
 
 
@@ -793,9 +623,7 @@ reconnect (void *cls)
 static void
 disconnect (struct GNUNET_TRANSPORT_CoreHandle *h)
 {
-  GNUNET_CONTAINER_multipeermap_iterate (h->neighbours,
-                                         &neighbour_delete,
-                                         h);
+  GNUNET_CONTAINER_multipeermap_iterate (h->neighbours, &neighbour_delete, h);
   if (NULL != h->mq)
   {
     GNUNET_MQ_destroy (h->mq);
@@ -817,12 +645,9 @@ disconnect_and_schedule_reconnect (struct 
GNUNET_TRANSPORT_CoreHandle *h)
   disconnect (h);
   LOG (GNUNET_ERROR_TYPE_DEBUG,
        "Scheduling task to reconnect to transport service in %s.\n",
-       GNUNET_STRINGS_relative_time_to_string (h->reconnect_delay,
-                                               GNUNET_YES));
+       GNUNET_STRINGS_relative_time_to_string (h->reconnect_delay, 
GNUNET_YES));
   h->reconnect_task =
-      GNUNET_SCHEDULER_add_delayed (h->reconnect_delay,
-                                    &reconnect,
-                                    h);
+    GNUNET_SCHEDULER_add_delayed (h->reconnect_delay, &reconnect, h);
   h->reconnect_delay = GNUNET_TIME_STD_BACKOFF (h->reconnect_delay);
 }
 
@@ -840,14 +665,52 @@ GNUNET_TRANSPORT_core_get_mq (struct 
GNUNET_TRANSPORT_CoreHandle *handle,
 {
   struct Neighbour *n;
 
-  n = neighbour_find (handle,
-                      peer);
+  n = neighbour_find (handle, peer);
   if (NULL == n)
     return NULL;
   return n->mq;
 }
 
 
+/**
+ * Notification from the CORE service to the TRANSPORT service
+ * that the CORE service has finished processing a message from
+ * TRANSPORT (via the @code{handlers} of #GNUNET_TRANSPORT_core_connect())
+ * and that it is thus now OK for TRANSPORT to send more messages
+ * for @a pid.
+ *
+ * Used to provide flow control, this is our equivalent to
+ * #GNUNET_SERVICE_client_continue() of an ordinary service.
+ *
+ * Note that due to the use of a window, TRANSPORT may send multiple
+ * messages destined for the same peer even without an intermediate
+ * call to this function. However, CORE must still call this function
+ * once per message received, as otherwise eventually the window will
+ * be full and TRANSPORT will stop providing messages to CORE for @a
+ * pid.
+ *
+ * @param ch core handle
+ * @param pid which peer was the message from that was fully processed by CORE
+ */
+void
+GNUNET_TRANSPORT_core_receive_continue (struct GNUNET_TRANSPORT_CoreHandle *ch,
+                                        const struct GNUNET_PeerIdentity *pid)
+{
+  struct GNUNET_MQ_Envelope *env;
+  struct RecvOkMessage *rok;
+
+  LOG (GNUNET_ERROR_TYPE_DEBUG,
+       "Message for %s finished CORE processing, sending RECV_OK.\n",
+       GNUNET_i2s (pid));
+  if (NULL == ch->mq)
+    return;
+  env = GNUNET_MQ_msg (rok, GNUNET_MESSAGE_TYPE_TRANSPORT_RECV_OK);
+  rok->increase_window_delta = htonl (1);
+  rok->peer = *pid;
+  GNUNET_MQ_send (ch->mq, env);
+}
+
+
 /**
  * Connect to the transport service.  Note that the connection may
  * complete (or fail) asynchronously.
@@ -859,17 +722,15 @@ GNUNET_TRANSPORT_core_get_mq (struct 
GNUNET_TRANSPORT_CoreHandle *handle,
  * @param rec receive function to call
  * @param nc function to call on connect events
  * @param nd function to call on disconnect events
- * @param neb function to call if we have excess bandwidth to a peer
  * @return NULL on error
  */
 struct GNUNET_TRANSPORT_CoreHandle *
 GNUNET_TRANSPORT_core_connect (const struct GNUNET_CONFIGURATION_Handle *cfg,
-                              const struct GNUNET_PeerIdentity *self,
-                              const struct GNUNET_MQ_MessageHandler *handlers,
-                              void *cls,
-                              GNUNET_TRANSPORT_NotifyConnect nc,
-                              GNUNET_TRANSPORT_NotifyDisconnect nd,
-                              GNUNET_TRANSPORT_NotifyExcessBandwidth neb)
+                               const struct GNUNET_PeerIdentity *self,
+                               const struct GNUNET_MQ_MessageHandler *handlers,
+                               void *cls,
+                               GNUNET_TRANSPORT_NotifyConnect nc,
+                               GNUNET_TRANSPORT_NotifyDisconnect nd)
 {
   struct GNUNET_TRANSPORT_CoreHandle *h;
   unsigned int i;
@@ -884,19 +745,17 @@ GNUNET_TRANSPORT_core_connect (const struct 
GNUNET_CONFIGURATION_Handle *cfg,
   h->cls = cls;
   h->nc_cb = nc;
   h->nd_cb = nd;
-  h->neb_cb = neb;
   h->reconnect_delay = GNUNET_TIME_UNIT_ZERO;
   if (NULL != handlers)
   {
-    for (i=0;NULL != handlers[i].cb; i++) ;
-    h->handlers = GNUNET_new_array (i + 1,
-                                    struct GNUNET_MQ_MessageHandler);
+    for (i = 0; NULL != handlers[i].cb; i++)
+      ;
+    h->handlers = GNUNET_new_array (i + 1, struct GNUNET_MQ_MessageHandler);
     GNUNET_memcpy (h->handlers,
-                  handlers,
-                  i * sizeof (struct GNUNET_MQ_MessageHandler));
+                   handlers,
+                   i * sizeof (struct GNUNET_MQ_MessageHandler));
   }
-  LOG (GNUNET_ERROR_TYPE_DEBUG,
-       "Connecting to transport service\n");
+  LOG (GNUNET_ERROR_TYPE_DEBUG, "Connecting to transport service\n");
   reconnect (h);
   if (NULL == h->mq)
   {
@@ -905,8 +764,7 @@ GNUNET_TRANSPORT_core_connect (const struct 
GNUNET_CONFIGURATION_Handle *cfg,
     return NULL;
   }
   h->neighbours =
-    GNUNET_CONTAINER_multipeermap_create (STARTING_NEIGHBOURS_SIZE,
-                                          GNUNET_YES);
+    GNUNET_CONTAINER_multipeermap_create (STARTING_NEIGHBOURS_SIZE, 
GNUNET_YES);
   return h;
 }
 
@@ -914,13 +772,13 @@ GNUNET_TRANSPORT_core_connect (const struct 
GNUNET_CONFIGURATION_Handle *cfg,
 /**
  * Disconnect from the transport service.
  *
- * @param handle handle to the service as returned from 
#GNUNET_TRANSPORT_core_connect()
+ * @param handle handle to the service as returned from
+ * #GNUNET_TRANSPORT_core_connect()
  */
 void
 GNUNET_TRANSPORT_core_disconnect (struct GNUNET_TRANSPORT_CoreHandle *handle)
 {
-  LOG (GNUNET_ERROR_TYPE_DEBUG,
-       "Transport disconnect called!\n");
+  LOG (GNUNET_ERROR_TYPE_DEBUG, "Transport disconnect called!\n");
   /* this disconnects all neighbours... */
   disconnect (handle);
   /* and now we stop trying to connect again... */
diff --git a/src/transport/transport_api_core.c 
b/src/transport/transport_api_core.c
index e86499173..a163d7ccf 100644
--- a/src/transport/transport_api_core.c
+++ b/src/transport/transport_api_core.c
@@ -29,11 +29,10 @@
 #include "gnunet_arm_service.h"
 #include "gnunet_hello_lib.h"
 #include "gnunet_protocols.h"
-#include "gnunet_transport_core_service.h"
 #include "gnunet_transport_service.h"
 #include "transport.h"
 
-#define LOG(kind,...) GNUNET_log_from (kind, "transport-api-core",__VA_ARGS__)
+#define LOG(kind, ...) GNUNET_log_from (kind, "transport-api-core", 
__VA_ARGS__)
 
 /**
  * If we could not send any payload to a peer for this amount of
@@ -113,11 +112,9 @@ struct Neighbour
    * Size of the message in @e env.
    */
   uint16_t env_size;
-
 };
 
 
-
 /**
  * Handle for the transport service (includes all of the
  * state for the transport service).
@@ -187,7 +184,6 @@ struct GNUNET_TRANSPORT_CoreHandle
    * (if #GNUNET_NO, then @e self is all zeros!).
    */
   int check_self;
-
 };
 
 
@@ -212,8 +208,7 @@ static struct Neighbour *
 neighbour_find (struct GNUNET_TRANSPORT_CoreHandle *h,
                 const struct GNUNET_PeerIdentity *peer)
 {
-  return GNUNET_CONTAINER_multipeermap_get (h->neighbours,
-                                            peer);
+  return GNUNET_CONTAINER_multipeermap_get (h->neighbours, peer);
 }
 
 
@@ -234,9 +229,7 @@ notify_excess_cb (void *cls)
        GNUNET_i2s (&n->id));
 
   if (NULL != h->neb_cb)
-    h->neb_cb (h->cls,
-               &n->id,
-               n->handlers_cls);
+    h->neb_cb (h->cls, &n->id, n->handlers_cls);
 }
 
 
@@ -251,9 +244,7 @@ notify_excess_cb (void *cls)
  *         #GNUNET_NO if not.
  */
 static int
-neighbour_delete (void *cls,
-                 const struct GNUNET_PeerIdentity *key,
-                  void *value)
+neighbour_delete (void *cls, const struct GNUNET_PeerIdentity *key, void 
*value)
 {
   struct GNUNET_TRANSPORT_CoreHandle *handle = cls;
   struct Neighbour *n = value;
@@ -263,9 +254,7 @@ neighbour_delete (void *cls,
        GNUNET_i2s (key));
   GNUNET_BANDWIDTH_tracker_notification_stop (&n->out_tracker);
   if (NULL != handle->nd_cb)
-    handle->nd_cb (handle->cls,
-                   &n->id,
-                   n->handlers_cls);
+    handle->nd_cb (handle->cls, &n->id, n->handlers_cls);
   if (NULL != n->timeout_task)
   {
     GNUNET_SCHEDULER_cancel (n->timeout_task);
@@ -278,10 +267,9 @@ neighbour_delete (void *cls,
   }
   GNUNET_MQ_destroy (n->mq);
   GNUNET_assert (NULL == n->mq);
-  GNUNET_assert (GNUNET_YES ==
-                 GNUNET_CONTAINER_multipeermap_remove (handle->neighbours,
-                                                       key,
-                                                       n));
+  GNUNET_assert (
+    GNUNET_YES ==
+    GNUNET_CONTAINER_multipeermap_remove (handle->neighbours, key, n));
   GNUNET_free (n);
   return GNUNET_YES;
 }
@@ -297,8 +285,7 @@ neighbour_delete (void *cls,
  * @param error error code
  */
 static void
-mq_error_handler (void *cls,
-                  enum GNUNET_MQ_Error error)
+mq_error_handler (void *cls, enum GNUNET_MQ_Error error)
 {
   struct GNUNET_TRANSPORT_CoreHandle *h = cls;
 
@@ -317,14 +304,12 @@ mq_error_handler (void *cls,
  * @return #GNUNET_OK if message is well-formed
  */
 static int
-check_hello (void *cls,
-             const struct GNUNET_MessageHeader *msg)
+check_hello (void *cls, const struct GNUNET_MessageHeader *msg)
 {
   struct GNUNET_PeerIdentity me;
 
   if (GNUNET_OK !=
-      GNUNET_HELLO_get_id ((const struct GNUNET_HELLO_Message *) msg,
-                           &me))
+      GNUNET_HELLO_get_id ((const struct GNUNET_HELLO_Message *) msg, &me))
   {
     GNUNET_break (0);
     return GNUNET_SYSERR;
@@ -340,8 +325,7 @@ check_hello (void *cls,
  * @param msg message received
  */
 static void
-handle_hello (void *cls,
-              const struct GNUNET_MessageHeader *msg)
+handle_hello (void *cls, const struct GNUNET_MessageHeader *msg)
 {
   /* we do not care => FIXME: signal in options to NEVER send HELLOs! */
 }
@@ -388,8 +372,7 @@ notify_send_done (void *cls)
     n->env = NULL;
     n->traffic_overhead = 0;
   }
-  delay = GNUNET_BANDWIDTH_tracker_get_delay (&n->out_tracker,
-                                              128);
+  delay = GNUNET_BANDWIDTH_tracker_get_delay (&n->out_tracker, 128);
   if (0 == delay.rel_value_us)
   {
     n->is_ready = GNUNET_YES;
@@ -399,9 +382,8 @@ notify_send_done (void *cls)
   GNUNET_MQ_impl_send_in_flight (n->mq);
   /* cannot send even a small message without violating
      quota, wait a before allowing MQ to send next message */
-  n->timeout_task = GNUNET_SCHEDULER_add_delayed (delay,
-                                                  &notify_send_done_fin,
-                                                  n);
+  n->timeout_task =
+    GNUNET_SCHEDULER_add_delayed (delay, &notify_send_done_fin, n);
 }
 
 
@@ -434,20 +416,17 @@ mq_send_impl (struct GNUNET_MQ_Handle *mq,
     return;
   }
   GNUNET_assert (NULL == n->env);
-  n->env = GNUNET_MQ_msg_nested_mh (obm,
-                                    GNUNET_MESSAGE_TYPE_TRANSPORT_SEND,
-                                    msg);
+  n->env =
+    GNUNET_MQ_msg_nested_mh (obm, GNUNET_MESSAGE_TYPE_TRANSPORT_SEND, msg);
   obm->reserved = htonl (0);
-  obm->timeout = GNUNET_TIME_relative_hton (GNUNET_TIME_UNIT_MINUTES); /* 
FIXME: to be removed */
+  obm->timeout = GNUNET_TIME_relative_hton (
+    GNUNET_TIME_UNIT_MINUTES); /* FIXME: to be removed */
   obm->peer = n->id;
   GNUNET_assert (NULL == n->timeout_task);
   n->is_ready = GNUNET_NO;
   n->env_size = ntohs (msg->size);
-  GNUNET_MQ_notify_sent (n->env,
-                         &notify_send_done,
-                         n);
-  GNUNET_MQ_send (h->mq,
-                  n->env);
+  GNUNET_MQ_notify_sent (n->env, &notify_send_done, n);
+  GNUNET_MQ_send (h->mq, n->env);
   LOG (GNUNET_ERROR_TYPE_DEBUG,
        "Queued message of type %u for neighbour `%s'.\n",
        ntohs (msg->type),
@@ -463,8 +442,7 @@ mq_send_impl (struct GNUNET_MQ_Handle *mq,
  * @param impl_state state of the implementation
  */
 static void
-mq_destroy_impl (struct GNUNET_MQ_Handle *mq,
-                 void *impl_state)
+mq_destroy_impl (struct GNUNET_MQ_Handle *mq, void *impl_state)
 {
   struct Neighbour *n = impl_state;
 
@@ -481,8 +459,7 @@ mq_destroy_impl (struct GNUNET_MQ_Handle *mq,
  * @param impl_state state specific to the implementation
  */
 static void
-mq_cancel_impl (struct GNUNET_MQ_Handle *mq,
-                void *impl_state)
+mq_cancel_impl (struct GNUNET_MQ_Handle *mq, void *impl_state)
 {
   struct Neighbour *n = impl_state;
 
@@ -506,8 +483,7 @@ mq_cancel_impl (struct GNUNET_MQ_Handle *mq,
  * @param error error code
  */
 static void
-peer_mq_error_handler (void *cls,
-                       enum GNUNET_MQ_Error error)
+peer_mq_error_handler (void *cls, enum GNUNET_MQ_Error error)
 {
   /* struct Neighbour *n = cls; */
 
@@ -529,12 +505,9 @@ outbound_bw_tracker_update (void *cls)
 
   if (NULL == n->timeout_task)
     return;
-  delay = GNUNET_BANDWIDTH_tracker_get_delay (&n->out_tracker,
-                                              128);
+  delay = GNUNET_BANDWIDTH_tracker_get_delay (&n->out_tracker, 128);
   GNUNET_SCHEDULER_cancel (n->timeout_task);
-  n->timeout_task = GNUNET_SCHEDULER_add_delayed (delay,
-                                                  &notify_send_done,
-                                                  n);
+  n->timeout_task = GNUNET_SCHEDULER_add_delayed (delay, &notify_send_done, n);
 }
 
 
@@ -545,8 +518,7 @@ outbound_bw_tracker_update (void *cls)
  * @param cim message received
  */
 static void
-handle_connect (void *cls,
-                const struct ConnectInfoMessage *cim)
+handle_connect (void *cls, const struct ConnectInfoMessage *cim)
 {
   struct GNUNET_TRANSPORT_CoreHandle *h = cls;
   struct Neighbour *n;
@@ -555,8 +527,7 @@ handle_connect (void *cls,
        "Receiving CONNECT message for `%s' with quota %u\n",
        GNUNET_i2s (&cim->id),
        ntohl (cim->quota_out.value__));
-  n = neighbour_find (h,
-                      &cim->id);
+  n = neighbour_find (h, &cim->id);
   if (NULL != n)
   {
     GNUNET_break (0); /* FIXME: this assertion seems to fail sometimes!? */
@@ -576,13 +547,13 @@ handle_connect (void *cls,
                                   &notify_excess_cb,
                                   n);
   GNUNET_assert (GNUNET_OK ==
-                 GNUNET_CONTAINER_multipeermap_put (h->neighbours,
-                                                    &n->id,
-                                                    n,
-                                                    
GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY));
+                 GNUNET_CONTAINER_multipeermap_put (
+                   h->neighbours,
+                   &n->id,
+                   n,
+                   GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY));
 
-  GNUNET_BANDWIDTH_tracker_update_quota (&n->out_tracker,
-                                         cim->quota_out);
+  GNUNET_BANDWIDTH_tracker_update_quota (&n->out_tracker, cim->quota_out);
   n->mq = GNUNET_MQ_queue_for_callbacks (&mq_send_impl,
                                          &mq_destroy_impl,
                                          &mq_cancel_impl,
@@ -592,11 +563,8 @@ handle_connect (void *cls,
                                          n);
   if (NULL != h->nc_cb)
   {
-    n->handlers_cls = h->nc_cb (h->cls,
-                                &n->id,
-                                n->mq);
-    GNUNET_MQ_set_handlers_closure (n->mq,
-                                    n->handlers_cls);
+    n->handlers_cls = h->nc_cb (h->cls, &n->id, n->mq);
+    GNUNET_MQ_set_handlers_closure (n->mq, n->handlers_cls);
   }
 }
 
@@ -608,8 +576,7 @@ handle_connect (void *cls,
  * @param dim message received
  */
 static void
-handle_disconnect (void *cls,
-                   const struct DisconnectInfoMessage *dim)
+handle_disconnect (void *cls, const struct DisconnectInfoMessage *dim)
 {
   struct GNUNET_TRANSPORT_CoreHandle *h = cls;
   struct Neighbour *n;
@@ -625,10 +592,7 @@ handle_disconnect (void *cls,
     disconnect_and_schedule_reconnect (h);
     return;
   }
-  GNUNET_assert (GNUNET_YES ==
-                 neighbour_delete (h,
-                                   &dim->peer,
-                                   n));
+  GNUNET_assert (GNUNET_YES == neighbour_delete (h, &dim->peer, n));
 }
 
 
@@ -639,8 +603,7 @@ handle_disconnect (void *cls,
  * @param okm message received
  */
 static void
-handle_send_ok (void *cls,
-                const struct SendOkMessage *okm)
+handle_send_ok (void *cls, const struct SendOkMessage *okm)
 {
   struct GNUNET_TRANSPORT_CoreHandle *h = cls;
   struct Neighbour *n;
@@ -653,8 +616,7 @@ handle_send_ok (void *cls,
        "Receiving SEND_OK message, transmission to %s %s.\n",
        GNUNET_i2s (&okm->peer),
        ntohl (okm->success) == GNUNET_OK ? "succeeded" : "failed");
-  n = neighbour_find (h,
-                      &okm->peer);
+  n = neighbour_find (h, &okm->peer);
   if (NULL == n)
   {
     /* We should never get a 'SEND_OK' for a peer that we are not
@@ -681,8 +643,7 @@ handle_send_ok (void *cls,
  * @param im message received
  */
 static int
-check_recv (void *cls,
-             const struct InboundMessage *im)
+check_recv (void *cls, const struct InboundMessage *im)
 {
   const struct GNUNET_MessageHeader *imm;
   uint16_t size;
@@ -710,12 +671,11 @@ check_recv (void *cls,
  * @param im message received
  */
 static void
-handle_recv (void *cls,
-             const struct InboundMessage *im)
+handle_recv (void *cls, const struct InboundMessage *im)
 {
   struct GNUNET_TRANSPORT_CoreHandle *h = cls;
-  const struct GNUNET_MessageHeader *imm
-    = (const struct GNUNET_MessageHeader *) &im[1];
+  const struct GNUNET_MessageHeader *imm =
+    (const struct GNUNET_MessageHeader *) &im[1];
   struct Neighbour *n;
 
   LOG (GNUNET_ERROR_TYPE_DEBUG,
@@ -730,8 +690,7 @@ handle_recv (void *cls,
     disconnect_and_schedule_reconnect (h);
     return;
   }
-  GNUNET_MQ_inject_message (n->mq,
-                            imm);
+  GNUNET_MQ_inject_message (n->mq, imm);
 }
 
 
@@ -742,8 +701,7 @@ handle_recv (void *cls,
  * @param msg message received
  */
 static void
-handle_set_quota (void *cls,
-                  const struct QuotaSetMessage *qm)
+handle_set_quota (void *cls, const struct QuotaSetMessage *qm)
 {
   struct GNUNET_TRANSPORT_CoreHandle *h = cls;
   struct Neighbour *n;
@@ -752,16 +710,15 @@ handle_set_quota (void *cls,
        "Receiving SET_QUOTA message for `%s' with quota %u\n",
        GNUNET_i2s (&qm->peer),
        ntohl (qm->quota.value__));
-  n = neighbour_find (h,
-                     &qm->peer);
+  n = neighbour_find (h, &qm->peer);
   if (NULL == n)
   {
-    GNUNET_break (0); /* FIXME: julius reports this assertion fails sometimes? 
*/
+    GNUNET_break (
+      0); /* FIXME: julius reports this assertion fails sometimes? */
     disconnect_and_schedule_reconnect (h);
     return;
   }
-  GNUNET_BANDWIDTH_tracker_update_quota (&n->out_tracker,
-                                         qm->quota);
+  GNUNET_BANDWIDTH_tracker_update_quota (&n->out_tracker, qm->quota);
 }
 
 
@@ -774,50 +731,44 @@ static void
 reconnect (void *cls)
 {
   struct GNUNET_TRANSPORT_CoreHandle *h = cls;
-  struct GNUNET_MQ_MessageHandler handlers[] = {
-    GNUNET_MQ_hd_var_size (hello,
-                           GNUNET_MESSAGE_TYPE_HELLO,
-                           struct GNUNET_MessageHeader,
-                           h),
-    GNUNET_MQ_hd_fixed_size (connect,
-                             GNUNET_MESSAGE_TYPE_TRANSPORT_CONNECT,
-                             struct ConnectInfoMessage,
-                             h),
-    GNUNET_MQ_hd_fixed_size (disconnect,
-                             GNUNET_MESSAGE_TYPE_TRANSPORT_DISCONNECT,
-                             struct DisconnectInfoMessage,
-                             h),
-    GNUNET_MQ_hd_fixed_size (send_ok,
-                             GNUNET_MESSAGE_TYPE_TRANSPORT_SEND_OK,
-                             struct SendOkMessage,
-                             h),
-    GNUNET_MQ_hd_var_size (recv,
-                           GNUNET_MESSAGE_TYPE_TRANSPORT_RECV,
-                           struct InboundMessage,
-                           h),
-    GNUNET_MQ_hd_fixed_size (set_quota,
-                             GNUNET_MESSAGE_TYPE_TRANSPORT_SET_QUOTA,
-                             struct QuotaSetMessage,
-                             h),
-    GNUNET_MQ_handler_end ()
-  };
+  struct GNUNET_MQ_MessageHandler handlers[] =
+    {GNUNET_MQ_hd_var_size (hello,
+                            GNUNET_MESSAGE_TYPE_HELLO,
+                            struct GNUNET_MessageHeader,
+                            h),
+     GNUNET_MQ_hd_fixed_size (connect,
+                              GNUNET_MESSAGE_TYPE_TRANSPORT_CONNECT,
+                              struct ConnectInfoMessage,
+                              h),
+     GNUNET_MQ_hd_fixed_size (disconnect,
+                              GNUNET_MESSAGE_TYPE_TRANSPORT_DISCONNECT,
+                              struct DisconnectInfoMessage,
+                              h),
+     GNUNET_MQ_hd_fixed_size (send_ok,
+                              GNUNET_MESSAGE_TYPE_TRANSPORT_SEND_OK,
+                              struct SendOkMessage,
+                              h),
+     GNUNET_MQ_hd_var_size (recv,
+                            GNUNET_MESSAGE_TYPE_TRANSPORT_RECV,
+                            struct InboundMessage,
+                            h),
+     GNUNET_MQ_hd_fixed_size (set_quota,
+                              GNUNET_MESSAGE_TYPE_TRANSPORT_SET_QUOTA,
+                              struct QuotaSetMessage,
+                              h),
+     GNUNET_MQ_handler_end ()};
   struct GNUNET_MQ_Envelope *env;
   struct StartMessage *s;
   uint32_t options;
 
   h->reconnect_task = NULL;
-  LOG (GNUNET_ERROR_TYPE_DEBUG,
-       "Connecting to transport service.\n");
+  LOG (GNUNET_ERROR_TYPE_DEBUG, "Connecting to transport service.\n");
   GNUNET_assert (NULL == h->mq);
-  h->mq = GNUNET_CLIENT_connect (h->cfg,
-                                 "transport",
-                                 handlers,
-                                 &mq_error_handler,
-                                 h);
+  h->mq =
+    GNUNET_CLIENT_connect (h->cfg, "transport", handlers, &mq_error_handler, 
h);
   if (NULL == h->mq)
     return;
-  env = GNUNET_MQ_msg (s,
-                       GNUNET_MESSAGE_TYPE_TRANSPORT_START);
+  env = GNUNET_MQ_msg (s, GNUNET_MESSAGE_TYPE_TRANSPORT_START);
   options = 0;
   if (h->check_self)
     options |= 1;
@@ -825,8 +776,7 @@ reconnect (void *cls)
     options |= 2;
   s->options = htonl (options);
   s->self = h->self;
-  GNUNET_MQ_send (h->mq,
-                  env);
+  GNUNET_MQ_send (h->mq, env);
 }
 
 
@@ -841,9 +791,7 @@ disconnect_and_schedule_reconnect (struct 
GNUNET_TRANSPORT_CoreHandle *h)
 {
   GNUNET_assert (NULL == h->reconnect_task);
   /* Forget about all neighbours that we used to be connected to */
-  GNUNET_CONTAINER_multipeermap_iterate (h->neighbours,
-                                         &neighbour_delete,
-                                         h);
+  GNUNET_CONTAINER_multipeermap_iterate (h->neighbours, &neighbour_delete, h);
   if (NULL != h->mq)
   {
     GNUNET_MQ_destroy (h->mq);
@@ -851,12 +799,9 @@ disconnect_and_schedule_reconnect (struct 
GNUNET_TRANSPORT_CoreHandle *h)
   }
   LOG (GNUNET_ERROR_TYPE_DEBUG,
        "Scheduling task to reconnect to transport service in %s.\n",
-       GNUNET_STRINGS_relative_time_to_string (h->reconnect_delay,
-                                               GNUNET_YES));
+       GNUNET_STRINGS_relative_time_to_string (h->reconnect_delay, 
GNUNET_YES));
   h->reconnect_task =
-      GNUNET_SCHEDULER_add_delayed (h->reconnect_delay,
-                                    &reconnect,
-                                    h);
+    GNUNET_SCHEDULER_add_delayed (h->reconnect_delay, &reconnect, h);
   h->reconnect_delay = GNUNET_TIME_STD_BACKOFF (h->reconnect_delay);
 }
 
@@ -874,8 +819,7 @@ GNUNET_TRANSPORT_core_get_mq (struct 
GNUNET_TRANSPORT_CoreHandle *handle,
 {
   struct Neighbour *n;
 
-  n = neighbour_find (handle,
-                      peer);
+  n = neighbour_find (handle, peer);
   if (NULL == n)
     return NULL;
   return n->mq;
@@ -898,12 +842,12 @@ GNUNET_TRANSPORT_core_get_mq (struct 
GNUNET_TRANSPORT_CoreHandle *handle,
  */
 struct GNUNET_TRANSPORT_CoreHandle *
 GNUNET_TRANSPORT_core_connect (const struct GNUNET_CONFIGURATION_Handle *cfg,
-                              const struct GNUNET_PeerIdentity *self,
-                              const struct GNUNET_MQ_MessageHandler *handlers,
-                              void *cls,
-                              GNUNET_TRANSPORT_NotifyConnect nc,
-                              GNUNET_TRANSPORT_NotifyDisconnect nd,
-                              GNUNET_TRANSPORT_NotifyExcessBandwidth neb)
+                               const struct GNUNET_PeerIdentity *self,
+                               const struct GNUNET_MQ_MessageHandler *handlers,
+                               void *cls,
+                               GNUNET_TRANSPORT_NotifyConnect nc,
+                               GNUNET_TRANSPORT_NotifyDisconnect nd,
+                               GNUNET_TRANSPORT_NotifyExcessBandwidth neb)
 {
   struct GNUNET_TRANSPORT_CoreHandle *h;
   unsigned int i;
@@ -922,15 +866,14 @@ GNUNET_TRANSPORT_core_connect (const struct 
GNUNET_CONFIGURATION_Handle *cfg,
   h->reconnect_delay = GNUNET_TIME_UNIT_ZERO;
   if (NULL != handlers)
   {
-    for (i=0;NULL != handlers[i].cb; i++) ;
-    h->handlers = GNUNET_new_array (i + 1,
-                                    struct GNUNET_MQ_MessageHandler);
+    for (i = 0; NULL != handlers[i].cb; i++)
+      ;
+    h->handlers = GNUNET_new_array (i + 1, struct GNUNET_MQ_MessageHandler);
     GNUNET_memcpy (h->handlers,
-                  handlers,
-                  i * sizeof (struct GNUNET_MQ_MessageHandler));
+                   handlers,
+                   i * sizeof (struct GNUNET_MQ_MessageHandler));
   }
-  LOG (GNUNET_ERROR_TYPE_DEBUG,
-       "Connecting to transport service\n");
+  LOG (GNUNET_ERROR_TYPE_DEBUG, "Connecting to transport service\n");
   reconnect (h);
   if (NULL == h->mq)
   {
@@ -939,8 +882,7 @@ GNUNET_TRANSPORT_core_connect (const struct 
GNUNET_CONFIGURATION_Handle *cfg,
     return NULL;
   }
   h->neighbours =
-    GNUNET_CONTAINER_multipeermap_create (STARTING_NEIGHBOURS_SIZE,
-                                          GNUNET_YES);
+    GNUNET_CONTAINER_multipeermap_create (STARTING_NEIGHBOURS_SIZE, 
GNUNET_YES);
   return h;
 }
 
@@ -948,13 +890,13 @@ GNUNET_TRANSPORT_core_connect (const struct 
GNUNET_CONFIGURATION_Handle *cfg,
 /**
  * Disconnect from the transport service.
  *
- * @param handle handle to the service as returned from 
#GNUNET_TRANSPORT_core_connect()
+ * @param handle handle to the service as returned from
+ * #GNUNET_TRANSPORT_core_connect()
  */
 void
 GNUNET_TRANSPORT_core_disconnect (struct GNUNET_TRANSPORT_CoreHandle *handle)
 {
-  LOG (GNUNET_ERROR_TYPE_DEBUG,
-       "Transport disconnect called!\n");
+  LOG (GNUNET_ERROR_TYPE_DEBUG, "Transport disconnect called!\n");
   /* this disconnects all neighbours... */
   if (NULL == handle->reconnect_task)
     disconnect_and_schedule_reconnect (handle);

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