Merge branch 'master' of ssh://gnunet.org/gnunet
[oweals/gnunet.git] / src / fs / gnunet-service-fs.c
index 94e8e6b239928d422acf229c4e7a2ebb1163851b..256d0c2b8d6f676bdea084b7119214ee9cc61ecc 100644 (file)
@@ -1,6 +1,6 @@
 /*
      This file is part of GNUnet.
-     (C) 2009, 2010, 2011 Christian Grothoff (and other contributing authors)
+     Copyright (C) 2009-2014, 2016 GNUnet e.V.
 
      GNUnet is free software; you can redistribute it and/or modify
      it under the terms of the GNU General Public License as published
 
      You should have received a copy of the GNU General Public License
      along with GNUnet; see the file COPYING.  If not, write to the
-     Free Software Foundation, Inc., 59 Temple Place - Suite 330,
-     Boston, MA 02111-1307, USA.
+     Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+     Boston, MA 02110-1301, USA.
 */
 
 /**
  * @file fs/gnunet-service-fs.c
  * @brief gnunet anonymity protocol implementation
  * @author Christian Grothoff
- *
- * To use:
- * - consider re-issue GSF_dht_lookup_ after non-DHT reply received
  */
 #include "platform.h"
 #include <float.h>
@@ -46,7 +43,9 @@
 #include "gnunet-service-fs_pr.h"
 #include "gnunet-service-fs_push.h"
 #include "gnunet-service-fs_put.h"
+#include "gnunet-service-fs_cadet.h"
 #include "fs.h"
+#include "fs_api.h"
 
 /**
  * Size for the hash map for DHT requests from the FS
  */
 #define COVER_AGE_FREQUENCY GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 5)
 
+/**
+ * Collect an instane number of statistics?  May cause excessive IPC.
+ */
+#define INSANE_STATISTICS GNUNET_NO
+
+
+
+/**
+ * Doubly-linked list of requests we are performing
+ * on behalf of the same client.
+ */
+struct ClientRequest
+{
+
+  /**
+   * This is a doubly-linked list.
+   */
+  struct ClientRequest *next;
+
+  /**
+   * This is a doubly-linked list.
+   */
+  struct ClientRequest *prev;
+
+  /**
+   * Request this entry represents.
+   */
+  struct GSF_PendingRequest *pr;
+
+  /**
+   * Client list this request belongs to.
+   */
+  struct GSF_LocalClient *lc;
+
+  /**
+   * Task scheduled to destroy the request.
+   */
+  struct GNUNET_SCHEDULER_Task * kill_task;
+
+};
+
+
+/**
+ * Replies to be transmitted to the client.  The actual
+ * response message is allocated after this struct.
+ */
+struct ClientResponse
+{
+  /**
+   * This is a doubly-linked list.
+   */
+  struct ClientResponse *next;
+
+  /**
+   * This is a doubly-linked list.
+   */
+  struct ClientResponse *prev;
+
+  /**
+   * Client list entry this response belongs to.
+   */
+  struct GSF_LocalClient *lc;
+
+  /**
+   * Number of bytes in the response.
+   */
+  size_t msize;
+};
+
+
+/**
+ * Information we track while handling an index
+ * start request from a client.
+ */
+struct IndexStartContext
+{
+
+  /**
+   * This is a doubly linked list.
+   */
+  struct IndexStartContext *next;
+
+  /**
+   * This is a doubly linked list.
+   */
+  struct IndexStartContext *prev;
+
+  /**
+   * Name of the indexed file.
+   */
+  char *filename;
+
+  /**
+   * Context for transmitting confirmation to client.
+   */
+  struct GSF_LocalClient *lc;
+
+  /**
+   * Context for hashing of the file.
+   */
+  struct GNUNET_CRYPTO_FileHashContext *fhc;
+
+  /**
+   * Hash of the contents of the file.
+   */
+  struct GNUNET_HashCode file_id;
+
+};
+
+
+/**
+ * A local client.
+ */
+struct GSF_LocalClient
+{
+
+  /**
+   * ID of the client.
+   */
+  struct GNUNET_SERVICE_Client *client;
+
+  /**
+   * Queue for sending replies.
+   */
+  struct GNUNET_MQ_Handle *mq;
+
+  /**
+   * Head of list of requests performed on behalf
+   * of this client right now.
+   */
+  struct ClientRequest *cr_head;
+
+  /**
+   * Tail of list of requests performed on behalf
+   * of this client right now.
+   */
+  struct ClientRequest *cr_tail;
+
+  /**
+   * This is a doubly linked list.
+   */
+  struct IndexStartContext *isc_head;
+
+  /**
+   * This is a doubly linked list.
+   */
+  struct IndexStartContext *isc_tail;
+
+  /**
+   * Head of linked list of responses.
+   */
+  struct ClientResponse *res_head;
+
+  /**
+   * Tail of linked list of responses.
+   */
+  struct ClientResponse *res_tail;
+
+};
+
 
 /* ****************************** globals ****************************** */
 
@@ -97,6 +256,12 @@ struct GNUNET_LOAD_Value *GSF_rt_entry_lifetime;
  */
 struct GNUNET_TIME_Relative GSF_avg_latency = { 500 };
 
+/**
+ * Handle to ATS service.
+ */
+struct GNUNET_ATS_PerformanceHandle *GSF_ats;
+
+
 /**
  * Typical priorities we're seeing from other peers right now.  Since
  * most priorities will be zero, this value is the weighted average of
@@ -109,6 +274,11 @@ struct GNUNET_TIME_Relative GSF_avg_latency = { 500 };
  */
 double GSF_current_priorities;
 
+/**
+ * Size of the datastore queue we assume for common requests.
+ */
+unsigned int GSF_datastore_queue_size;
+
 /**
  * How many query messages have we received 'recently' that
  * have not yet been claimed as cover traffic?
@@ -137,6 +307,11 @@ struct GNUNET_CORE_Handle *GSF_core;
  */
 int GSF_enable_randomized_delays;
 
+/**
+ * Identity of this peer.
+ */
+struct GNUNET_PeerIdentity GSF_my_id;
+
 /* ***************************** locals ******************************* */
 
 /**
@@ -144,34 +319,213 @@ int GSF_enable_randomized_delays;
  */
 static struct GNUNET_CONFIGURATION_Handle *block_cfg;
 
+/**
+ * Private key of this peer.  Used to sign LOC URI requests.
+ */
+static struct GNUNET_CRYPTO_EddsaPrivateKey *pk;
+
 /**
  * ID of our task that we use to age the cover counters.
  */
-static GNUNET_SCHEDULER_TaskIdentifier cover_age_task;
+static struct GNUNET_SCHEDULER_Task * cover_age_task;
 
 /**
  * Datastore 'GET' load tracking.
  */
 static struct GNUNET_LOAD_Value *datastore_get_load;
 
+
 /**
- * Identity of this peer.
+ * Creates a fresh local client handle.
+ *
+ * @param cls NULL
+ * @param client handle of the client
+ * @param mq message queue for @a client
+ * @return handle to local client entry
+ */
+static void *
+client_connect_cb (void *cls,
+                   struct GNUNET_SERVICE_Client *client,
+                   struct GNUNET_MQ_Handle *mq)
+{
+  struct GSF_LocalClient *pos;
+
+  pos = GNUNET_new (struct GSF_LocalClient);
+  pos->client = client;
+  pos->mq = mq;
+  return pos;
+}
+
+
+/**
+ * Free the given client request.
+ *
+ * @param cls the client request to free
+ */
+static void
+client_request_destroy (void *cls)
+{
+  struct ClientRequest *cr = cls;
+  struct GSF_LocalClient *lc = cr->lc;
+
+  cr->kill_task = NULL;
+  GNUNET_CONTAINER_DLL_remove (lc->cr_head,
+                               lc->cr_tail,
+                               cr);
+  GSF_pending_request_cancel_ (cr->pr,
+                               GNUNET_YES);
+  GNUNET_STATISTICS_update (GSF_stats,
+                            gettext_noop ("# client searches active"),
+                            -1,
+                            GNUNET_NO);
+  GNUNET_free (cr);
+}
+
+
+/**
+ * Handle a reply to a pending request.  Also called if a request
+ * expires (then with data == NULL).  The handler may be called
+ * many times (depending on the request type), but will not be
+ * called during or after a call to #GSF_pending_request_cancel()
+ * and will also not be called anymore after a call signalling
+ * expiration.
+ *
+ * @param cls user-specified closure
+ * @param eval evaluation of the result
+ * @param pr handle to the original pending request
+ * @param reply_anonymity_level anonymity level for the reply, UINT32_MAX for "unknown"
+ * @param expiration when does @a data expire?
+ * @param last_transmission when was the last time we've tried to download this block? (FOREVER if unknown)
+ * @param type type of the block
+ * @param data response data, NULL on request expiration
+ * @param data_len number of bytes in @a data
  */
-static struct GNUNET_PeerIdentity my_id;
+static void
+client_response_handler (void *cls,
+                         enum GNUNET_BLOCK_EvaluationResult eval,
+                         struct GSF_PendingRequest *pr,
+                         uint32_t reply_anonymity_level,
+                         struct GNUNET_TIME_Absolute expiration,
+                         struct GNUNET_TIME_Absolute last_transmission,
+                         enum GNUNET_BLOCK_Type type,
+                         const void *data,
+                         size_t data_len)
+{
+  struct ClientRequest *cr = cls;
+  struct GSF_LocalClient *lc;
+  struct GNUNET_MQ_Envelope *env;
+  struct ClientPutMessage *pm;
+  const struct GSF_PendingRequestData *prd;
+
+  if (NULL == data)
+  {
+    /* local-only request, with no result, clean up. */
+    if (NULL == cr->kill_task)
+      cr->kill_task = GNUNET_SCHEDULER_add_now (&client_request_destroy,
+                                                cr);
+    return;
+  }
+  prd = GSF_pending_request_get_data_ (pr);
+  GNUNET_break (type != GNUNET_BLOCK_TYPE_ANY);
+  if ((prd->type != type) && (prd->type != GNUNET_BLOCK_TYPE_ANY))
+  {
+    GNUNET_break (0);
+    return;
+  }
+  GNUNET_STATISTICS_update (GSF_stats,
+                            gettext_noop
+                            ("# replies received for local clients"), 1,
+                            GNUNET_NO);
+  GNUNET_assert (pr == cr->pr);
+  lc = cr->lc;
+  env = GNUNET_MQ_msg_extra (pm,
+                             data_len,
+                             GNUNET_MESSAGE_TYPE_FS_PUT);
+  pm->type = htonl (type);
+  pm->expiration = GNUNET_TIME_absolute_hton (expiration);
+  pm->last_transmission = GNUNET_TIME_absolute_hton (last_transmission);
+  pm->num_transmissions = htonl (prd->num_transmissions);
+  pm->respect_offered = htonl (prd->respect_offered);
+  GNUNET_memcpy (&pm[1],
+                 data,
+                 data_len);
+  GNUNET_MQ_send (lc->mq,
+                  env);
+  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+              "Queued reply to query `%s' for local client\n",
+              GNUNET_h2s (&prd->query));
+  if (GNUNET_BLOCK_EVALUATION_OK_LAST != eval)
+  {
+    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+               "Evaluation %d - keeping query alive\n",
+               (int) eval);
+    return;
+  }
+  if (NULL == cr->kill_task)
+    cr->kill_task = GNUNET_SCHEDULER_add_now (&client_request_destroy,
+                                              cr);
+}
+
+
+/**
+ * A client disconnected from us.  Tear down the local client
+ * record.
+ *
+ * @param cls unused
+ * @param client handle of the client
+ * @param app_ctx the `struct GSF_LocalClient`
+ */
+static void
+client_disconnect_cb (void *cls,
+                      struct GNUNET_SERVICE_Client *client,
+                      void *app_ctx)
+{
+  struct GSF_LocalClient *lc = app_ctx;
+  struct IndexStartContext *isc;
+  struct ClientRequest *cr;
+  struct ClientResponse *res;
+
+  while (NULL != (cr = lc->cr_head))
+  {
+    if (NULL != cr->kill_task)
+      GNUNET_SCHEDULER_cancel (cr->kill_task);
+    client_request_destroy (cr);
+  }
+  while (NULL != (res = lc->res_head))
+  {
+    GNUNET_CONTAINER_DLL_remove (lc->res_head,
+                                 lc->res_tail,
+                                 res);
+    GNUNET_free (res);
+  }
+  while (NULL != (isc = lc->isc_head))
+  {
+    GNUNET_CONTAINER_DLL_remove (lc->isc_head,
+                                 lc->isc_tail,
+                                 isc);
+    GNUNET_CRYPTO_hash_file_cancel (isc->fhc);
+    GNUNET_free (isc);
+  }
+  GNUNET_free (lc);
+}
+
+
+
+
 
 /**
  * Task that periodically ages our cover traffic statistics.
  *
  * @param cls unused closure
- * @param tc task context
  */
 static void
-age_cover_counters (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
+age_cover_counters (void *cls)
 {
   GSF_cover_content_count = (GSF_cover_content_count * 15) / 16;
   GSF_cover_query_count = (GSF_cover_query_count * 15) / 16;
   cover_age_task =
-      GNUNET_SCHEDULER_add_delayed (COVER_AGE_FREQUENCY, &age_cover_counters,
+      GNUNET_SCHEDULER_add_delayed (COVER_AGE_FREQUENCY,
+                                   &age_cover_counters,
                                     NULL);
 }
 
@@ -188,7 +542,7 @@ GSF_update_datastore_delay_ (struct GNUNET_TIME_Absolute start)
   struct GNUNET_TIME_Relative delay;
 
   delay = GNUNET_TIME_absolute_get_duration (start);
-  GNUNET_LOAD_update (datastore_get_load, delay.rel_value);
+  GNUNET_LOAD_update (datastore_get_load, delay.rel_value_us);
 }
 
 
@@ -197,9 +551,10 @@ GSF_update_datastore_delay_ (struct GNUNET_TIME_Absolute start)
  * to even consider processing the query at
  * all.
  *
- * @return GNUNET_YES if the load is too high to do anything (load high)
- *         GNUNET_NO to process normally (load normal)
- *         GNUNET_SYSERR to process for free (load low)
+ * @param priority priority of the request (used as a reference point to compare with the load)
+ * @return #GNUNET_YES if the load is too high to do anything (load high)
+ *         #GNUNET_NO to process normally (load normal)
+ *         #GNUNET_SYSERR to process for free (load low)
  */
 int
 GSF_test_get_load_too_high_ (uint32_t priority)
@@ -219,61 +574,62 @@ GSF_test_get_load_too_high_ (uint32_t priority)
  * We've received peer performance information. Update
  * our running average for the P2P latency.
  *
- * @param atsi performance information
- * @param atsi_count number of 'atsi' records
+ * @param cls closure
+ * @param address the address
+ * @param active is this address in active use
+ * @param bandwidth_out assigned outbound bandwidth for the connection
+ * @param bandwidth_in assigned inbound bandwidth for the connection
+ * @param prop performance data for the address (as far as known)
  */
 static void
-update_latencies (const struct GNUNET_ATS_Information *atsi,
-                  unsigned int atsi_count)
+update_latencies (void *cls,
+                 const struct GNUNET_HELLO_Address *address,
+                 int active,
+                 struct GNUNET_BANDWIDTH_Value32NBO bandwidth_out,
+                 struct GNUNET_BANDWIDTH_Value32NBO bandwidth_in,
+                 const struct GNUNET_ATS_Properties *prop)
 {
-  unsigned int i;
-
-  for (i = 0; i < atsi_count; i++)
+  if (NULL == address)
   {
-    if (ntohl (atsi[i].type) == GNUNET_ATS_QUALITY_NET_DELAY)
-    {
-      GSF_avg_latency.rel_value =
-          (GSF_avg_latency.rel_value * 31 +
-           GNUNET_MIN (5000, ntohl (atsi[i].value))) / 32;
-      GNUNET_STATISTICS_set (GSF_stats,
-                             gettext_noop
-                             ("# running average P2P latency (ms)"),
-                             GSF_avg_latency.rel_value, GNUNET_NO);
-      break;
-    }
+    /* ATS service temporarily disconnected */
+    return;
   }
+
+  if (GNUNET_YES != active)
+    return;
+  GSF_update_peer_latency_ (&address->peer,
+                            prop->delay);
+  GSF_avg_latency.rel_value_us =
+    (GSF_avg_latency.rel_value_us * 31 +
+     GNUNET_MIN (5000, prop->delay.rel_value_us)) / 32;
+  GNUNET_STATISTICS_set (GSF_stats,
+                         gettext_noop ("# running average P2P latency (ms)"),
+                         GSF_avg_latency.rel_value_us / 1000LL,
+                         GNUNET_NO);
 }
 
 
 /**
- * Handle P2P "PUT" message.
+ * Check P2P "PUT" message.
  *
- * @param cls closure, always NULL
- * @param other the other peer involved (sender or receiver, NULL
- *        for loopback messages where we are both sender and receiver)
+ * @param cls closure with the `struct GSF_ConnectedPeer`
  * @param message the actual message
- * @param atsi performance information
- * @param atsi_count number of records in 'atsi'
- * @return GNUNET_OK to keep the connection open,
- *         GNUNET_SYSERR to close it (signal serious error)
+ * @return #GNUNET_OK to keep the connection open,
+ *         #GNUNET_SYSERR to close it (signal serious error)
  */
 static int
-handle_p2p_put (void *cls, const struct GNUNET_PeerIdentity *other,
-                const struct GNUNET_MessageHeader *message,
-                const struct GNUNET_ATS_Information *atsi,
-                unsigned int atsi_count)
+check_p2p_put (void *cls,
+              const struct PutMessage *put)
 {
-  struct GSF_ConnectedPeer *cp;
+  enum GNUNET_BLOCK_Type type;
 
-  cp = GSF_peer_get_ (other);
-  if (NULL == cp)
+  type = ntohl (put->type);
+  if (GNUNET_BLOCK_TYPE_FS_ONDEMAND == type)
   {
-    GNUNET_break (0);
-    return GNUNET_OK;
+    GNUNET_break_op (0);
+    return GNUNET_SYSERR;
   }
-  GSF_cover_content_count++;
-  update_latencies (atsi, atsi_count);
-  return GSF_handle_p2p_content_ (cp, message);
+  return GNUNET_OK;
 }
 
 
@@ -281,7 +637,7 @@ handle_p2p_put (void *cls, const struct GNUNET_PeerIdentity *other,
  * We have a new request, consider forwarding it to the given
  * peer.
  *
- * @param cls the 'struct GSF_PendingRequest'
+ * @param cls the `struct GSF_PendingRequest`
  * @param peer identity of the peer
  * @param cp handle to the connected peer record
  * @param ppd peer performance data
@@ -294,14 +650,18 @@ consider_request_for_forwarding (void *cls,
 {
   struct GSF_PendingRequest *pr = cls;
 
-  if (GNUNET_YES != GSF_pending_request_test_target_ (pr, peer))
+  if (GNUNET_YES !=
+      GSF_pending_request_test_target_ (pr, peer))
   {
+#if INSANE_STATISTICS
     GNUNET_STATISTICS_update (GSF_stats,
                               gettext_noop ("# Loopback routes suppressed"), 1,
                               GNUNET_NO);
+#endif
     return;
   }
-  GSF_plan_add_ (cp, pr);
+  GSF_plan_add_ (cp,
+                pr);
 }
 
 
@@ -315,42 +675,59 @@ consider_request_for_forwarding (void *cls,
  * @param pr the pending request we were processing
  * @param result final datastore lookup result
  */
-static void
-consider_forwarding (void *cls, struct GSF_PendingRequest *pr,
-                     enum GNUNET_BLOCK_EvaluationResult result)
+void
+GSF_consider_forwarding (void *cls,
+                        struct GSF_PendingRequest *pr,
+                        enum GNUNET_BLOCK_EvaluationResult result)
 {
   if (GNUNET_BLOCK_EVALUATION_OK_LAST == result)
     return;                     /* we're done... */
-  GSF_iterate_connected_peers_ (&consider_request_for_forwarding, pr);
+  if (GNUNET_YES !=
+      GSF_pending_request_test_active_ (pr))
+    return; /* request is not actually active, skip! */
+  GSF_iterate_connected_peers_ (&consider_request_for_forwarding,
+                                pr);
 }
 
 
 /**
- * Handle P2P "GET" request.
+ * Check P2P "GET" request.
  *
- * @param cls closure, always NULL
- * @param other the other peer involved (sender or receiver, NULL
- *        for loopback messages where we are both sender and receiver)
- * @param message the actual message
- * @param atsi performance information
- * @param atsi_count number of records in 'atsi'
- * @return GNUNET_OK to keep the connection open,
- *         GNUNET_SYSERR to close it (signal serious error)
+ * @param cls closure
+ * @param gm the actual message
+ * @return #GNUNET_OK to keep the connection open,
+ *         #GNUNET_SYSERR to close it (signal serious error)
  */
 static int
-handle_p2p_get (void *cls, const struct GNUNET_PeerIdentity *other,
-                const struct GNUNET_MessageHeader *message,
-                const struct GNUNET_ATS_Information *atsi,
-                unsigned int atsi_count)
+check_p2p_get (void *cls,
+              const struct GetMessage *gm)
 {
-  struct GSF_PendingRequest *pr;
-
-  pr = GSF_handle_p2p_query_ (other, message);
-  if (NULL == pr)
+  size_t msize;
+  unsigned int bm;
+  unsigned int bits;
+  size_t bfsize;
+
+  msize = ntohs (gm->header.size);
+  bm = ntohl (gm->hash_bitmap);
+  bits = 0;
+  while (bm > 0)
+  {
+    if (1 == (bm & 1))
+      bits++;
+    bm >>= 1;
+  }
+  if (msize < sizeof (struct GetMessage) + bits * sizeof (struct GNUNET_PeerIdentity))
+  {
+    GNUNET_break_op (0);
     return GNUNET_SYSERR;
-  GSF_pending_request_get_data_ (pr)->has_started = GNUNET_YES;
-  GSF_local_lookup_ (pr, &consider_forwarding, NULL);
-  update_latencies (atsi, atsi_count);
+  }
+  bfsize = msize - sizeof (struct GetMessage) - bits * sizeof (struct GNUNET_PeerIdentity);
+  /* bfsize must be power of 2, check! */
+  if (0 != ((bfsize - 1) & bfsize))
+  {
+    GNUNET_break_op (0);
+    return GNUNET_SYSERR;
+  }
   return GNUNET_OK;
 }
 
@@ -361,65 +738,434 @@ handle_p2p_get (void *cls, const struct GNUNET_PeerIdentity *other,
  * result status).  Also signal that we can now
  * receive more request information from the client.
  *
- * @param cls the client doing the request ('struct GNUNET_SERVER_Client')
+ * @param cls the client doing the request (`struct GSF_LocalClient`)
  * @param pr the pending request we were processing
  * @param result final datastore lookup result
  */
 static void
-start_p2p_processing (void *cls, struct GSF_PendingRequest *pr,
+start_p2p_processing (void *cls,
+                      struct GSF_PendingRequest *pr,
                       enum GNUNET_BLOCK_EvaluationResult result)
 {
-  struct GNUNET_SERVER_Client *client = cls;
+  struct GSF_LocalClient *lc = cls;
   struct GSF_PendingRequestData *prd;
 
+  GNUNET_SERVICE_client_continue (lc->client);
+  if (GNUNET_BLOCK_EVALUATION_OK_LAST == result)
+    return;                     /* we're done, 'pr' was already destroyed... */
   prd = GSF_pending_request_get_data_ (pr);
   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
               "Finished database lookup for local request `%s' with result %d\n",
-              GNUNET_h2s (&prd->query), result);
-  GNUNET_SERVER_receive_done (client, GNUNET_OK);
-  if (GNUNET_BLOCK_EVALUATION_OK_LAST == result)
-    return;                     /* we're done, 'pr' was already destroyed... */
-  if (0 != (GSF_PRO_LOCAL_ONLY & prd->options))
+              GNUNET_h2s (&prd->query),
+             result);
+  if (0 == prd->anonymity_level)
   {
-    GSF_pending_request_cancel_ (pr, GNUNET_YES);
+    switch (prd->type)
+    {
+    case GNUNET_BLOCK_TYPE_FS_DBLOCK:
+    case GNUNET_BLOCK_TYPE_FS_IBLOCK:
+      /* the above block types MAY be available via 'cadet' */
+      GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+                 "Considering cadet-based download for block\n");
+      GSF_cadet_lookup_ (pr);
+      break;
+    case GNUNET_BLOCK_TYPE_FS_UBLOCK:
+      /* the above block types are in the DHT */
+      GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+                 "Considering DHT-based search for block\n");
+      GSF_dht_lookup_ (pr);
+      break;
+    default:
+      GNUNET_break (0);
+      break;
+    }
+  }
+  GSF_consider_forwarding (NULL,
+                           pr,
+                           result);
+}
+
+
+/**
+ * Check #GNUNET_MESSAGE_TYPE_FS_START_SEARCH-message (search request
+ * from client).
+ *
+ * @param cls identification of the client
+ * @param sm the actual message
+ * @return #GNUNET_OK if @a sm is well-formed
+ */
+static int
+check_client_start_search (void *cls,
+                           const struct SearchMessage *sm)
+{
+  uint16_t msize;
+
+  msize = ntohs (sm->header.size) - sizeof (struct SearchMessage);
+  if (0 != msize % sizeof (struct GNUNET_HashCode))
+  {
+    GNUNET_break (0);
+    return GNUNET_SYSERR;
+  }
+  return GNUNET_OK;
+}
+
+
+/**
+ * Handle #GNUNET_MESSAGE_TYPE_FS_START_SEARCH-message (search request
+ * from client).
+ *
+ * Responsible for creating the request entry itself and setting
+ * up reply callback and cancellation on client disconnect.
+ *
+ * @param cls identification of the client
+ * @param sm the actual message
+ */
+static void
+handle_client_start_search (void *cls,
+                            const struct SearchMessage *sm)
+{
+  static struct GNUNET_PeerIdentity all_zeros;
+  struct GSF_LocalClient *lc = cls;
+  struct ClientRequest *cr;
+  struct GSF_PendingRequestData *prd;
+  uint16_t msize;
+  unsigned int sc;
+  enum GNUNET_BLOCK_Type type;
+  enum GSF_PendingRequestOptions options;
+
+  GNUNET_STATISTICS_update (GSF_stats,
+                            gettext_noop ("# client searches received"),
+                            1,
+                            GNUNET_NO);
+  msize = ntohs (sm->header.size) - sizeof (struct SearchMessage);
+  sc = msize / sizeof (struct GNUNET_HashCode);
+  type = ntohl (sm->type);
+  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+              "Received request for `%s' of type %u from local client\n",
+              GNUNET_h2s (&sm->query),
+              (unsigned int) type);
+  cr = NULL;
+  /* detect duplicate UBLOCK requests */
+  if ((type == GNUNET_BLOCK_TYPE_FS_UBLOCK) ||
+      (type == GNUNET_BLOCK_TYPE_ANY))
+  {
+    cr = lc->cr_head;
+    while (NULL != cr)
+    {
+      prd = GSF_pending_request_get_data_ (cr->pr);
+      /* only unify with queries that hae not yet started local processing
+        (SEARCH_MESSAGE_OPTION_CONTINUED was always set) and that have a
+        matching query and type */
+      if ((GNUNET_YES != prd->has_started) &&
+         (0 != memcmp (&prd->query,
+                        &sm->query,
+                        sizeof (struct GNUNET_HashCode))) &&
+          (prd->type == type))
+        break;
+      cr = cr->next;
+    }
+  }
+  if (NULL != cr)
+  {
+    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+                "Have existing request, merging content-seen lists.\n");
+    GSF_pending_request_update_ (cr->pr,
+                                 (const struct GNUNET_HashCode *) &sm[1],
+                                 sc);
+    GNUNET_STATISTICS_update (GSF_stats,
+                              gettext_noop ("# client searches updated (merged content seen list)"),
+                              1,
+                              GNUNET_NO);
+  }
+  else
+  {
+    GNUNET_STATISTICS_update (GSF_stats,
+                              gettext_noop ("# client searches active"),
+                              1,
+                              GNUNET_NO);
+    cr = GNUNET_new (struct ClientRequest);
+    cr->lc = lc;
+    GNUNET_CONTAINER_DLL_insert (lc->cr_head,
+                                 lc->cr_tail,
+                                 cr);
+    options = GSF_PRO_LOCAL_REQUEST;
+    if (0 != (SEARCH_MESSAGE_OPTION_LOOPBACK_ONLY & ntohl (sm->options)))
+      options |= GSF_PRO_LOCAL_ONLY;
+    cr->pr = GSF_pending_request_create_ (options, type,
+                                         &sm->query,
+                                          (0 !=
+                                           memcmp (&sm->target,
+                                                   &all_zeros,
+                                                   sizeof (struct GNUNET_PeerIdentity)))
+                                          ? &sm->target : NULL, NULL, 0,
+                                          0 /* bf */ ,
+                                          ntohl (sm->anonymity_level),
+                                          0 /* priority */ ,
+                                          0 /* ttl */ ,
+                                          0 /* sender PID */ ,
+                                          0 /* origin PID */ ,
+                                          (const struct GNUNET_HashCode *) &sm[1], sc,
+                                          &client_response_handler,
+                                          cr);
+  }
+  if (0 != (SEARCH_MESSAGE_OPTION_CONTINUED & ntohl (sm->options)))
+  {
+    GNUNET_SERVICE_client_continue (lc->client);
     return;
   }
-  GSF_dht_lookup_ (pr);
-  consider_forwarding (NULL, pr, result);
+  GSF_pending_request_get_data_ (cr->pr)->has_started = GNUNET_YES;
+  GSF_local_lookup_ (cr->pr,
+                     &start_p2p_processing,
+                     lc);
 }
 
 
 /**
- * Handle START_SEARCH-message (search request from client).
+ * Handle request to sign a LOC URI (from client).
  *
- * @param cls closure
- * @param client identification of the client
+ * @param cls identification of the client
+ * @param msg the actual message
+ */
+static void
+handle_client_loc_sign (void *cls,
+                        const struct RequestLocSignatureMessage *msg)
+{
+  struct GSF_LocalClient *lc = cls;
+  struct GNUNET_FS_Uri base;
+  struct GNUNET_FS_Uri *loc;
+  struct GNUNET_MQ_Envelope *env;
+  struct ResponseLocSignatureMessage *resp;
+
+  GNUNET_break (GNUNET_SIGNATURE_PURPOSE_PEER_PLACEMENT ==
+                ntohl (msg->purpose));
+  base.type = GNUNET_FS_URI_CHK;
+  base.data.chk.chk = msg->chk;
+  base.data.chk.file_length = GNUNET_ntohll (msg->file_length);
+  loc = GNUNET_FS_uri_loc_create (&base,
+                                  pk,
+                                  GNUNET_TIME_absolute_ntoh (msg->expiration_time));
+  env = GNUNET_MQ_msg (resp,
+                       GNUNET_MESSAGE_TYPE_FS_REQUEST_LOC_SIGNATURE);
+  resp->purpose = htonl (GNUNET_SIGNATURE_PURPOSE_PEER_PLACEMENT);
+  resp->expiration_time = GNUNET_TIME_absolute_hton (loc->data.loc.expirationTime);
+  resp->signature = loc->data.loc.contentSignature;
+  resp->peer = loc->data.loc.peer;
+  GNUNET_FS_uri_destroy (loc);
+  GNUNET_MQ_send (lc->mq,
+                  env);
+  GNUNET_SERVICE_client_continue (lc->client);
+}
+
+
+/**
+ * Check INDEX_START-message.
+ *
+ * @param cls identification of the client
+ * @param ism the actual message
+ * @return #GNUNET_OK if @a ism is well-formed
+ */
+static int
+check_client_index_start (void *cls,
+                          const struct IndexStartMessage *ism)
+{
+  uint16_t msize;
+  char *fn;
+
+  msize = ntohs (ism->header.size);
+  if (((const char *) ism)[msize - 1] != '\0')
+  {
+    GNUNET_break (0);
+    return GNUNET_SYSERR;
+  }
+  if (0 != ism->reserved)
+  {
+    GNUNET_break (0);
+    return GNUNET_SYSERR;
+  }
+  fn = GNUNET_STRINGS_filename_expand ((const char *) &ism[1]);
+  if (NULL == fn)
+  {
+    GNUNET_break (0);
+    return GNUNET_SYSERR;
+  }
+  GNUNET_free (fn);
+  return GNUNET_OK;
+}
+
+
+/**
+ * We've validated the hash of the file we're about to index.  Signal
+ * success to the client and update our internal data structures.
+ *
+ * @param isc the data about the index info entry for the request
+ */
+static void
+signal_index_ok (struct IndexStartContext *isc)
+{
+  struct GSF_LocalClient *lc = isc->lc;
+  struct GNUNET_MQ_Envelope *env;
+  struct GNUNET_MessageHeader *msg;
+
+  GNUNET_FS_add_to_index (isc->filename,
+                          &isc->file_id);
+  env = GNUNET_MQ_msg (msg,
+                       GNUNET_MESSAGE_TYPE_FS_INDEX_START_OK);
+  GNUNET_MQ_send (lc->mq,
+                  env);
+  GNUNET_free (isc->filename);
+  GNUNET_free (isc);
+  GNUNET_SERVICE_client_continue (lc->client);
+}
+
+
+/**
+ * Function called once the hash computation over an
+ * indexed file has completed.
+ *
+ * @param cls closure, our publishing context
+ * @param res resulting hash, NULL on error
+ */
+static void
+hash_for_index_val (void *cls,
+                    const struct GNUNET_HashCode *res)
+{
+  struct IndexStartContext *isc = cls;
+  struct GSF_LocalClient *lc = isc->lc;
+  struct GNUNET_MQ_Envelope *env;
+  struct GNUNET_MessageHeader *msg;
+
+  GNUNET_CONTAINER_DLL_remove (lc->isc_head,
+                               lc->isc_tail,
+                               isc);
+  isc->fhc = NULL;
+  if ( (NULL == res) ||
+       (0 != memcmp (res,
+                     &isc->file_id,
+                     sizeof (struct GNUNET_HashCode))))
+  {
+    GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
+                _("Hash mismatch trying to index file `%s' which does not have hash `%s'\n"),
+                isc->filename,
+                GNUNET_h2s (&isc->file_id));
+    env = GNUNET_MQ_msg (msg,
+                         GNUNET_MESSAGE_TYPE_FS_INDEX_START_FAILED);
+    GNUNET_MQ_send (lc->mq,
+                    env);
+    GNUNET_SERVICE_client_continue (lc->client);
+    GNUNET_free (isc);
+    return;
+  }
+  signal_index_ok (isc);
+}
+
+
+/**
+ * Handle INDEX_START-message.
+ *
+ * @param cls identification of the client
  * @param message the actual message
  */
 static void
-handle_start_search (void *cls, struct GNUNET_SERVER_Client *client,
-                     const struct GNUNET_MessageHeader *message)
+handle_client_index_start (void *cls,
+                           const struct IndexStartMessage *ism)
 {
-  struct GSF_PendingRequest *pr;
-  int ret;
-
-  pr = NULL;
-  ret = GSF_local_client_start_search_handler_ (client, message, &pr);
-  switch (ret)
-  {
-  case GNUNET_SYSERR:
-    GNUNET_SERVER_receive_done (client, GNUNET_SYSERR);
-    break;
-  case GNUNET_NO:
-    GNUNET_SERVER_receive_done (client, GNUNET_OK);
-    break;
-  case GNUNET_YES:
-    GSF_pending_request_get_data_ (pr)->has_started = GNUNET_YES;
-    GSF_local_lookup_ (pr, &start_p2p_processing, client);
-    break;
-  default:
-    GNUNET_assert (0);
+  struct GSF_LocalClient *lc = cls;
+  struct IndexStartContext *isc;
+  char *fn;
+  uint64_t dev;
+  uint64_t ino;
+  uint64_t mydev;
+  uint64_t myino;
+
+  fn = GNUNET_STRINGS_filename_expand ((const char *) &ism[1]);
+  GNUNET_assert (NULL != fn);
+  dev = GNUNET_ntohll (ism->device);
+  ino = GNUNET_ntohll (ism->inode);
+  isc = GNUNET_new (struct IndexStartContext);
+  isc->filename = fn;
+  isc->file_id = ism->file_id;
+  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+              "Received START_INDEX message for file `%s'\n",
+              isc->filename);
+  isc->lc = lc;
+  mydev = 0;
+  myino = 0;
+  if ( ( (dev != 0) ||
+         (ino != 0) ) &&
+       (GNUNET_OK == GNUNET_DISK_file_get_identifiers (fn,
+                                                       &mydev,
+                                                       &myino)) &&
+       (dev == mydev) &&
+       (ino == myino) )
+  {
+    /* fast validation OK! */
+    signal_index_ok (isc);
+    return;
   }
+  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+              "Mismatch in file identifiers (%llu != %llu or %u != %u), need to hash.\n",
+              (unsigned long long) ino,
+              (unsigned long long) myino,
+              (unsigned int) dev,
+              (unsigned int) mydev);
+  /* slow validation, need to hash full file (again) */
+  GNUNET_CONTAINER_DLL_insert (lc->isc_head,
+                               lc->isc_tail,
+                               isc);
+  isc->fhc = GNUNET_CRYPTO_hash_file (GNUNET_SCHEDULER_PRIORITY_IDLE,
+                                      isc->filename,
+                                      HASHING_BLOCKSIZE,
+                                      &hash_for_index_val,
+                                      isc);
+  if (NULL == isc->fhc)
+    hash_for_index_val (isc,
+                        NULL);
+}
+
+
+/**
+ * Handle INDEX_LIST_GET-message.
+ *
+ * @param cls closure
+ * @param message the actual message
+ */
+static void
+handle_client_index_list_get (void *cls,
+                              const struct GNUNET_MessageHeader *message)
+{
+  struct GSF_LocalClient *lc = cls;
+
+  GNUNET_FS_indexing_send_list (lc->mq);
+  GNUNET_SERVICE_client_continue (lc->client);
+}
+
+
+/**
+ * Handle UNINDEX-message.
+ *
+ * @param cls identification of the client
+ * @param message the actual message
+ */
+static void
+handle_client_unindex (void *cls,
+                       const struct UnindexMessage *um)
+{
+  struct GSF_LocalClient *lc = cls;
+  struct GNUNET_MQ_Envelope *env;
+  struct GNUNET_MessageHeader *msg;
+  int found;
+
+  GNUNET_break (0 == um->reserved);
+  found = GNUNET_FS_indexing_do_unindex (&um->file_id);
+  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+              "Client requested unindexing of file `%s': %s\n",
+              GNUNET_h2s (&um->file_id),
+              found ? "found" : "not found");
+  env = GNUNET_MQ_msg (msg,
+                       GNUNET_MESSAGE_TYPE_FS_UNINDEX_OK);
+  GNUNET_MQ_send (lc->mq,
+                  env);
+  GNUNET_SERVICE_client_continue (lc->client);
 }
 
 
@@ -427,22 +1173,28 @@ handle_start_search (void *cls, struct GNUNET_SERVER_Client *client,
  * Task run during shutdown.
  *
  * @param cls unused
- * @param tc unused
  */
 static void
-shutdown_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
+shutdown_task (void *cls)
 {
+  GSF_cadet_stop_server ();
   if (NULL != GSF_core)
   {
     GNUNET_CORE_disconnect (GSF_core);
     GSF_core = NULL;
   }
+  if (NULL != GSF_ats)
+  {
+    GNUNET_ATS_performance_done (GSF_ats);
+    GSF_ats = NULL;
+  }
   GSF_put_done_ ();
   GSF_push_done_ ();
   GSF_pending_request_done_ ();
   GSF_plan_done ();
   GSF_connected_peer_done_ ();
-  GNUNET_DATASTORE_disconnect (GSF_dsh, GNUNET_NO);
+  GNUNET_DATASTORE_disconnect (GSF_dsh,
+                               GNUNET_NO);
   GSF_dsh = NULL;
   GNUNET_DHT_disconnect (GSF_dht);
   GSF_dht = NULL;
@@ -452,10 +1204,10 @@ shutdown_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
   block_cfg = NULL;
   GNUNET_STATISTICS_destroy (GSF_stats, GNUNET_NO);
   GSF_stats = NULL;
-  if (GNUNET_SCHEDULER_NO_TASK != cover_age_task)
+  if (NULL != cover_age_task)
   {
     GNUNET_SCHEDULER_cancel (cover_age_task);
-    cover_age_task = GNUNET_SCHEDULER_NO_TASK;
+    cover_age_task = NULL;
   }
   GNUNET_FS_indexing_done ();
   GNUNET_LOAD_value_free (datastore_get_load);
@@ -465,60 +1217,6 @@ shutdown_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
 }
 
 
-/**
- * Function called for each pending request whenever a new
- * peer connects, giving us a chance to decide about submitting
- * the existing request to the new peer.
- *
- * @param cls the 'struct GSF_ConnectedPeer' of the new peer
- * @param key query for the request
- * @param pr handle to the pending request
- * @return GNUNET_YES to continue to iterate
- */
-static int
-consider_peer_for_forwarding (void *cls, const GNUNET_HashCode * key,
-                              struct GSF_PendingRequest *pr)
-{
-  struct GSF_ConnectedPeer *cp = cls;
-  struct GNUNET_PeerIdentity pid;
-
-  GSF_connected_peer_get_identity_ (cp, &pid);
-  if (GNUNET_YES != GSF_pending_request_test_target_ (pr, &pid))
-  {
-    GNUNET_STATISTICS_update (GSF_stats,
-                              gettext_noop ("# Loopback routes suppressed"), 1,
-                              GNUNET_NO);
-    return GNUNET_YES;
-  }
-  GSF_plan_add_ (cp, pr);
-  return GNUNET_YES;
-}
-
-
-/**
- * Method called whenever a given peer connects.
- *
- * @param cls closure, not used
- * @param peer peer identity this notification is about
- * @param atsi performance information
- * @param atsi_count number of records in 'atsi'
- */
-static void
-peer_connect_handler (void *cls, const struct GNUNET_PeerIdentity *peer,
-                      const struct GNUNET_ATS_Information *atsi,
-                      unsigned int atsi_count)
-{
-  struct GSF_ConnectedPeer *cp;
-
-  if (0 == memcmp (&my_id, peer, sizeof (struct GNUNET_PeerIdentity)))
-    return;
-  cp = GSF_peer_connect_handler_ (peer, atsi, atsi_count);
-  if (NULL == cp)
-    return;
-  GSF_iterate_pending_requests_ (&consider_peer_for_forwarding, cp);
-}
-
-
 /**
  * Function called after GNUNET_CORE_connect has succeeded
  * (or failed for good).  Note that the private key of the
@@ -527,69 +1225,102 @@ peer_connect_handler (void *cls, const struct GNUNET_PeerIdentity *peer,
  * directly (which should work if you are authorized...).
  *
  * @param cls closure
- * @param server handle to the server, NULL if we failed
  * @param my_identity ID of this peer, NULL if we failed
  */
 static void
-peer_init_handler (void *cls, struct GNUNET_CORE_Handle *server,
+peer_init_handler (void *cls,
                    const struct GNUNET_PeerIdentity *my_identity)
 {
-  my_id = *my_identity;
+  if (0 != GNUNET_CRYPTO_cmp_peer_identity (&GSF_my_id,
+                                            my_identity))
+  {
+    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                "Peer identity missmatch, refusing to start!\n");
+    GNUNET_SCHEDULER_shutdown ();
+  }
 }
 
 
 /**
  * Process fs requests.
  *
- * @param server the initialized server
  * @param c configuration to use
  */
 static int
-main_init (struct GNUNET_SERVER_Handle *server,
-           const struct GNUNET_CONFIGURATION_Handle *c)
+main_init (const struct GNUNET_CONFIGURATION_Handle *c)
 {
-  static const struct GNUNET_CORE_MessageHandler p2p_handlers[] = {
-    {&handle_p2p_get,
-     GNUNET_MESSAGE_TYPE_FS_GET, 0},
-    {&handle_p2p_put,
-     GNUNET_MESSAGE_TYPE_FS_PUT, 0},
-    {&GSF_handle_p2p_migration_stop_,
-     GNUNET_MESSAGE_TYPE_FS_MIGRATION_STOP,
-     sizeof (struct MigrationStopMessage)},
-    {NULL, 0, 0}
+  struct GNUNET_MQ_MessageHandler no_p2p_handlers[] = {
+    GNUNET_MQ_handler_end ()
   };
-  static const struct GNUNET_SERVER_MessageHandler handlers[] = {
-    {&GNUNET_FS_handle_index_start, NULL,
-     GNUNET_MESSAGE_TYPE_FS_INDEX_START, 0},
-    {&GNUNET_FS_handle_index_list_get, NULL,
-     GNUNET_MESSAGE_TYPE_FS_INDEX_LIST_GET,
-     sizeof (struct GNUNET_MessageHeader)},
-    {&GNUNET_FS_handle_unindex, NULL, GNUNET_MESSAGE_TYPE_FS_UNINDEX,
-     sizeof (struct UnindexMessage)},
-    {&handle_start_search, NULL, GNUNET_MESSAGE_TYPE_FS_START_SEARCH,
-     0},
-    {NULL, NULL, 0, 0}
+  struct GNUNET_MQ_MessageHandler p2p_handlers[] = {
+    GNUNET_MQ_hd_var_size (p2p_get,
+                           GNUNET_MESSAGE_TYPE_FS_GET,
+                           struct GetMessage,
+                           NULL),
+    GNUNET_MQ_hd_var_size (p2p_put,
+                           GNUNET_MESSAGE_TYPE_FS_PUT,
+                           struct PutMessage,
+                           NULL),
+    GNUNET_MQ_hd_fixed_size (p2p_migration_stop,
+                             GNUNET_MESSAGE_TYPE_FS_MIGRATION_STOP,
+                             struct MigrationStopMessage,
+                             NULL),
+    GNUNET_MQ_handler_end ()
   };
+  int anon_p2p_off;
+  char *keyfile;
+
+  /* this option is really only for testcases that need to disable
+     _anonymous_ file-sharing for some reason */
+  anon_p2p_off = (GNUNET_YES ==
+                 GNUNET_CONFIGURATION_get_value_yesno (GSF_cfg,
+                                                       "fs",
+                                                       "DISABLE_ANON_TRANSFER"));
+
+  if (GNUNET_OK !=
+      GNUNET_CONFIGURATION_get_value_filename (GSF_cfg,
+                                               "PEER",
+                                               "PRIVATE_KEY",
+                                               &keyfile))
+  {
+    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                _("FS service is lacking HOSTKEY configuration setting.  Exiting.\n"));
+    GNUNET_SCHEDULER_shutdown ();
+    return GNUNET_SYSERR;
+  }
+  pk = GNUNET_CRYPTO_eddsa_key_create_from_file (keyfile);
+  GNUNET_free (keyfile);
+  GNUNET_assert (NULL != pk);
+  GNUNET_CRYPTO_eddsa_key_get_public (pk,
+                                      &GSF_my_id.public_key);
 
-  GSF_core =
-      GNUNET_CORE_connect (GSF_cfg, NULL, &peer_init_handler,
-                           &peer_connect_handler, &GSF_peer_disconnect_handler_,
-                           NULL, GNUNET_NO, NULL, GNUNET_NO, p2p_handlers);
+  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+              "I am peer %s\n",
+              GNUNET_i2s (&GSF_my_id));
+  GSF_core
+    = GNUNET_CORE_connect (GSF_cfg,
+                          NULL,
+                           &peer_init_handler,
+                           &GSF_peer_connect_handler,
+                           &GSF_peer_disconnect_handler,
+                          (GNUNET_YES == anon_p2p_off)
+                          ? no_p2p_handlers
+                          : p2p_handlers);
   if (NULL == GSF_core)
   {
     GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                _("Failed to connect to `%s' service.\n"), "core");
+                _("Failed to connect to `%s' service.\n"),
+               "core");
     return GNUNET_SYSERR;
   }
-  GNUNET_SERVER_disconnect_notify (server, &GSF_client_disconnect_handler_,
-                                   NULL);
-  GNUNET_SERVER_add_handlers (server, handlers);
   cover_age_task =
-      GNUNET_SCHEDULER_add_delayed (COVER_AGE_FREQUENCY, &age_cover_counters,
+      GNUNET_SCHEDULER_add_delayed (COVER_AGE_FREQUENCY,
+                                   &age_cover_counters,
                                     NULL);
   datastore_get_load = GNUNET_LOAD_value_init (DATASTORE_LOAD_AUTODECLINE);
-  GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_FOREVER_REL, &shutdown_task,
-                                NULL);
+  GSF_cadet_start_server ();
+  GNUNET_SCHEDULER_add_shutdown (&shutdown_task,
+                                NULL);
   return GNUNET_OK;
 }
 
@@ -598,14 +1329,29 @@ main_init (struct GNUNET_SERVER_Handle *server,
  * Process fs requests.
  *
  * @param cls closure
- * @param server the initialized server
  * @param cfg configuration to use
+ * @param service the initialized service
  */
 static void
-run (void *cls, struct GNUNET_SERVER_Handle *server,
-     const struct GNUNET_CONFIGURATION_Handle *cfg)
+run (void *cls,
+     const struct GNUNET_CONFIGURATION_Handle *cfg,
+     struct GNUNET_SERVICE_Handle *service)
 {
+  unsigned long long dqs;
+
   GSF_cfg = cfg;
+  if (GNUNET_OK !=
+      GNUNET_CONFIGURATION_get_value_size (GSF_cfg,
+                                           "fs",
+                                           "DATASTORE_QUEUE_SIZE",
+                                           &dqs))
+  {
+    GNUNET_log_config_missing (GNUNET_ERROR_TYPE_INFO,
+                              "fs",
+                               "DATASTORE_QUEUE_SIZE");
+    dqs = 32;
+  }
+  GSF_datastore_queue_size = (unsigned int) dqs;
   GSF_enable_randomized_delays =
       GNUNET_CONFIGURATION_get_value_yesno (cfg, "fs", "DELAY");
   GSF_dsh = GNUNET_DATASTORE_connect (cfg);
@@ -617,38 +1363,59 @@ run (void *cls, struct GNUNET_SERVER_Handle *server,
   GSF_rt_entry_lifetime = GNUNET_LOAD_value_init (GNUNET_TIME_UNIT_FOREVER_REL);
   GSF_stats = GNUNET_STATISTICS_create ("fs", cfg);
   block_cfg = GNUNET_CONFIGURATION_create ();
-  GNUNET_CONFIGURATION_set_value_string (block_cfg, "block", "PLUGINS", "fs");
   GSF_block_ctx = GNUNET_BLOCK_context_create (block_cfg);
   GNUNET_assert (NULL != GSF_block_ctx);
   GSF_dht = GNUNET_DHT_connect (cfg, FS_DHT_HT_SIZE);
   GSF_plan_init ();
   GSF_pending_request_init_ ();
   GSF_connected_peer_init_ ();
+  GSF_ats = GNUNET_ATS_performance_init (GSF_cfg,
+                                         &update_latencies,
+                                         NULL);
   GSF_push_init_ ();
   GSF_put_init_ ();
-  if ((GNUNET_OK != GNUNET_FS_indexing_init (cfg, GSF_dsh)) ||
-      (GNUNET_OK != main_init (server, cfg)))
+  if ( (GNUNET_OK != GNUNET_FS_indexing_init (cfg,
+                                              GSF_dsh)) ||
+       (GNUNET_OK != main_init (cfg)) )
   {
     GNUNET_SCHEDULER_shutdown ();
-    shutdown_task (NULL, NULL);
+    shutdown_task (NULL);
     return;
   }
 }
 
 
 /**
- * The main function for the fs service.
- *
- * @param argc number of arguments from the command line
- * @param argv command line arguments
- * @return 0 ok, 1 on error
+ * Define "main" method using service macro.
  */
-int
-main (int argc, char *const *argv)
-{
-  return (GNUNET_OK ==
-          GNUNET_SERVICE_run (argc, argv, "fs", GNUNET_SERVICE_OPTION_NONE,
-                              &run, NULL)) ? 0 : 1;
-}
+GNUNET_SERVICE_MAIN
+("fs",
+ GNUNET_SERVICE_OPTION_NONE,
+ &run,
+ &client_connect_cb,
+ &client_disconnect_cb,
+ NULL,
+ GNUNET_MQ_hd_var_size (client_index_start,
+                        GNUNET_MESSAGE_TYPE_FS_INDEX_START,
+                        struct IndexStartMessage,
+                        NULL),
+ GNUNET_MQ_hd_fixed_size (client_index_list_get,
+                         GNUNET_MESSAGE_TYPE_FS_INDEX_LIST_GET,
+                         struct GNUNET_MessageHeader,
+                         NULL),
+ GNUNET_MQ_hd_fixed_size (client_unindex,
+                         GNUNET_MESSAGE_TYPE_FS_UNINDEX,
+                         struct UnindexMessage,
+                         NULL),
+ GNUNET_MQ_hd_var_size (client_start_search,
+                        GNUNET_MESSAGE_TYPE_FS_START_SEARCH,
+                        struct SearchMessage,
+                        NULL),
+ GNUNET_MQ_hd_fixed_size (client_loc_sign,
+                         GNUNET_MESSAGE_TYPE_FS_REQUEST_LOC_SIGN,
+                         struct RequestLocSignatureMessage,
+                         NULL),
+ GNUNET_MQ_handler_end ());
+
 
 /* end of gnunet-service-fs.c */