expose our hello to plugins
[oweals/gnunet.git] / src / fs / fs_publish.c
index 18b0646986db387d1eec54418c927fd4b7ccd510..2c9d41b05603b5db274d32a7c925ed5d470b2d3b 100644 (file)
@@ -4,7 +4,7 @@
 
      GNUnet is free software; you can redistribute it and/or modify
      it under the terms of the GNU General Public License as published
-     by the Free Software Foundation; either version 2, or (at your
+     by the Free Software Foundation; either version 3, or (at your
      option) any later version.
 
      GNUnet is distributed in the hope that it will be useful, but
 /**
  * @file fs/fs_publish.c
  * @brief publish a file or directory in GNUnet
- * @see http://gnunet.org/encoding.php3
+ * @see http://gnunet.org/encoding
  * @author Krista Bennett
  * @author Christian Grothoff
- *
- * TODO:
- * - indexing cleanup: unindex on failure (can wait)
- * - persistence support (can wait)
- * - datastore reservation support (optimization)
- * - location URIs (publish with anonymity-level zero)
  */
 
 #include "platform.h"
 
 #define DEBUG_PUBLISH GNUNET_NO
 
-/**
- * Main function that performs the upload.
- * @param cls "struct GNUNET_FS_PublishContext" identifies the upload
- * @param tc task context
- */
-static void
-do_upload (void *cls,
-          const struct GNUNET_SCHEDULER_TaskContext *tc);
-
 
 /**
  * Context for "ds_put_cont".
@@ -81,28 +66,28 @@ struct PutContCtx
 
 /**
  * Fill in all of the generic fields for 
- * a publish event.
+ * a publish event and call the callback.
  *
  * @param pi structure to fill in
  * @param sc overall publishing context
  * @param p file information for the file being published
  * @param offset where in the file are we so far
+ * @return value returned from callback
  */
-static void
-make_publish_status (struct GNUNET_FS_ProgressInfo *pi,
-                    struct GNUNET_FS_PublishContext *sc,
-                    const struct GNUNET_FS_FileInformation *p,
-                    uint64_t offset)
+void *
+GNUNET_FS_publish_make_status_ (struct GNUNET_FS_ProgressInfo *pi,
+                               struct GNUNET_FS_PublishContext *sc,
+                               const struct GNUNET_FS_FileInformation *p,
+                               uint64_t offset)
 {
-  pi->value.publish.sc = sc;
+  pi->value.publish.pc = sc;
   pi->value.publish.fi = p;
   pi->value.publish.cctx
     = p->client_info;
   pi->value.publish.pctx
     = (NULL == p->dir) ? NULL : p->dir->client_info;
-  pi->value.publish.filename
-    = (p->is_directory) ? p->data.dir.dirname : p->data.file.filename;
-  pi->value.publish.size
+  pi->value.publish.filename = p->filename;
+  pi->value.publish.size 
     = (p->is_directory) ? p->data.dir.dir_size : p->data.file.file_size;
   pi->value.publish.eta 
     = GNUNET_TIME_calculate_eta (p->start_time,
@@ -111,25 +96,42 @@ make_publish_status (struct GNUNET_FS_ProgressInfo *pi,
   pi->value.publish.completed = offset;
   pi->value.publish.duration = GNUNET_TIME_absolute_get_duration (p->start_time);
   pi->value.publish.anonymity = p->anonymity;
+  return sc->h->upcb (sc->h->upcb_cls,
+                     pi);
 }
 
 
 /**
- * Cleanup the publish context, we're done
- * with it.
+ * Cleanup the publish context, we're done with it.
  *
- * @param sc struct to clean up after
+ * @param cls struct to clean up after
+ * @param tc scheduler context
  */
 static void
-publish_cleanup (struct GNUNET_FS_PublishContext *sc)
+publish_cleanup (void *cls,
+                const struct GNUNET_SCHEDULER_TaskContext *tc)
 {
-  GNUNET_FS_file_information_destroy (sc->fi, NULL, NULL);
-  if (sc->namespace != NULL)
-    GNUNET_FS_namespace_delete (sc->namespace, GNUNET_NO);
-  GNUNET_free_non_null (sc->nid);  
-  GNUNET_free_non_null (sc->nuid);
-  GNUNET_DATASTORE_disconnect (sc->dsh, GNUNET_NO);
-  GNUNET_free (sc);
+  struct GNUNET_FS_PublishContext *pc = cls;
+
+  if (pc->fhc != NULL)
+    {
+      GNUNET_CRYPTO_hash_file_cancel (pc->fhc);
+      pc->fhc = NULL;
+    }
+  GNUNET_FS_file_information_destroy (pc->fi, NULL, NULL);
+  if (pc->namespace != NULL)
+    GNUNET_FS_namespace_delete (pc->namespace, GNUNET_NO);
+  GNUNET_free_non_null (pc->nid);  
+  GNUNET_free_non_null (pc->nuid);
+  GNUNET_free_non_null (pc->serialization);
+  if (pc->dsh != NULL)
+    {
+      GNUNET_DATASTORE_disconnect (pc->dsh, GNUNET_NO);
+      pc->dsh = NULL;
+    }
+  if (pc->client != NULL)
+    GNUNET_CLIENT_disconnect (pc->client, GNUNET_NO);
+  GNUNET_free (pc);
 }
 
 
@@ -151,9 +153,12 @@ ds_put_cont (void *cls,
 
   if (GNUNET_SYSERR == pcc->sc->in_network_wait)
     {
-      /* we were aborted in the meantime,
-        finish shutdown! */
-      publish_cleanup (pcc->sc);
+      /* we were aborted in the meantime, finish shutdown! */
+      GNUNET_SCHEDULER_add_continuation (pcc->sc->h->sched,                                     
+                                        &publish_cleanup,
+                                        pcc->sc,
+                                        GNUNET_SCHEDULER_REASON_PREREQ_DONE);
+      GNUNET_free (pcc);
       return;
     }
   GNUNET_assert (GNUNET_YES == pcc->sc->in_network_wait);
@@ -161,18 +166,22 @@ ds_put_cont (void *cls,
   if (GNUNET_OK != success)
     {
       GNUNET_asprintf (&pcc->p->emsg, 
-                      _("Upload failed: %s"),
+                      _("Publishing failed: %s"),
                       msg);
-      GNUNET_FS_file_information_sync (pcc->p);
       pi.status = GNUNET_FS_STATUS_PUBLISH_ERROR;
-      make_publish_status (&pi, pcc->sc, pcc->p, 0);
       pi.value.publish.eta = GNUNET_TIME_UNIT_FOREVER_REL;
       pi.value.publish.specifics.error.message = pcc->p->emsg;
-      pcc->p->client_info
-       = pcc->sc->h->upcb (pcc->sc->h->upcb_cls,
-                           &pi);
+      pcc->p->client_info = GNUNET_FS_publish_make_status_ (&pi, pcc->sc, pcc->p, 0);
+      if ( (pcc->p->is_directory == GNUNET_NO) &&
+          (pcc->p->filename != NULL) &&
+          (pcc->p->data.file.do_index == GNUNET_YES) )
+       {
+         /* run unindex to clean up */
+         GNUNET_FS_unindex_start (pcc->sc->h,
+                                  pcc->p->filename,
+                                  NULL);
+       }          
     }
-  GNUNET_FS_file_information_sync (pcc->p);
   if (NULL != pcc->cont)
     pcc->sc->upload_task 
       = GNUNET_SCHEDULER_add_with_priority (pcc->sc->h->sched,
@@ -198,13 +207,10 @@ signal_publish_completion (struct GNUNET_FS_FileInformation *p,
   struct GNUNET_FS_ProgressInfo pi;
   
   pi.status = GNUNET_FS_STATUS_PUBLISH_COMPLETED;
-  make_publish_status (&pi, sc, p,
-                      GNUNET_ntohll (p->chk_uri->data.chk.file_length));
   pi.value.publish.eta = GNUNET_TIME_UNIT_ZERO;
   pi.value.publish.specifics.completed.chk_uri = p->chk_uri;
-  p->client_info
-    = sc->h->upcb (sc->h->upcb_cls,
-                 &pi);
+  p->client_info = GNUNET_FS_publish_make_status_ (&pi, sc, p,
+                                                  GNUNET_ntohll (p->chk_uri->data.chk.file_length));
 }
 
 
@@ -226,12 +232,40 @@ signal_publish_error (struct GNUNET_FS_FileInformation *p,
   
   p->emsg = GNUNET_strdup (emsg);
   pi.status = GNUNET_FS_STATUS_PUBLISH_ERROR;
-  make_publish_status (&pi, sc, p, 0);
   pi.value.publish.eta = GNUNET_TIME_UNIT_FOREVER_REL;
   pi.value.publish.specifics.error.message =emsg;
-  p->client_info
-    = sc->h->upcb (sc->h->upcb_cls,
-                 &pi);
+  p->client_info = GNUNET_FS_publish_make_status_ (&pi, sc, p, 0);
+  if ( (p->is_directory == GNUNET_NO) &&
+       (p->filename != NULL) &&
+       (p->data.file.do_index == GNUNET_YES) )
+    {
+      /* run unindex to clean up */
+      GNUNET_FS_unindex_start (sc->h,
+                              p->filename,
+                              NULL);
+    }     
+  
+}
+
+
+/**
+ * Datastore returns from reservation cancel request.
+ * 
+ * @param cls the 'struct GNUNET_FS_PublishContext'
+ * @param success success code (not used)
+ * @param msg error message (typically NULL, not used)
+ */
+static void
+finish_release_reserve (void *cls,
+                       int success,
+                       const char *msg)
+{
+  struct GNUNET_FS_PublishContext *pc = cls;
+
+  pc->qre = NULL;
+  signal_publish_completion (pc->fi, pc);
+  pc->all_done = GNUNET_YES;
+  GNUNET_FS_publish_sync_ (pc);
 }
 
 
@@ -248,17 +282,31 @@ publish_sblocks_cont (void *cls,
                      const struct GNUNET_FS_Uri *uri,
                      const char *emsg)
 {
-  struct GNUNET_FS_PublishContext *sc = cls;
+  struct GNUNET_FS_PublishContext *pc = cls;
   if (NULL != emsg)
     {
-      signal_publish_error (sc->fi,
-                           sc,
+      signal_publish_error (pc->fi,
+                           pc,
                            emsg);
+      GNUNET_FS_publish_sync_ (pc);
       return;
     }  
-  // FIXME: release the datastore reserve here!
-  signal_publish_completion (sc->fi, sc);
-  sc->all_done = GNUNET_YES;
+  GNUNET_assert (pc->qre == NULL);
+  if ( (pc->dsh != NULL) &&
+       (pc->rid != 0) )
+    {
+      pc->qre = GNUNET_DATASTORE_release_reserve (pc->dsh,
+                                                 pc->rid,
+                                                 UINT_MAX,
+                                                 UINT_MAX,
+                                                 GNUNET_TIME_UNIT_FOREVER_REL,
+                                                 &finish_release_reserve,
+                                                 pc);
+    }
+  else
+    {
+      finish_release_reserve (pc, GNUNET_OK, NULL);
+    }
 }
 
 
@@ -303,32 +351,43 @@ publish_kblocks_cont (void *cls,
                      const struct GNUNET_FS_Uri *uri,
                      const char *emsg)
 {
-  struct GNUNET_FS_PublishContext *sc = cls;
-  struct GNUNET_FS_FileInformation *p = sc->fi_pos;
+  struct GNUNET_FS_PublishContext *pc = cls;
+  struct GNUNET_FS_FileInformation *p = pc->fi_pos;
 
   if (NULL != emsg)
     {
-      signal_publish_error (p, sc, emsg);
-      sc->upload_task 
-       = GNUNET_SCHEDULER_add_with_priority (sc->h->sched,
+#if DEBUG_PUBLISH
+      GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+                 "Error uploading KSK blocks: %s\n",
+                 emsg);
+#endif
+      signal_publish_error (p, pc, emsg);
+      GNUNET_FS_file_information_sync_ (p);
+      GNUNET_FS_publish_sync_ (pc);
+      pc->upload_task 
+       = GNUNET_SCHEDULER_add_with_priority (pc->h->sched,
                                              GNUNET_SCHEDULER_PRIORITY_BACKGROUND,
-                                             &do_upload,
-                                             sc);
+                                             &GNUNET_FS_publish_main_,
+                                             pc);
       return;
     }
-  GNUNET_FS_file_information_sync (p);
+#if DEBUG_PUBLISH
+  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+             "KSK blocks published, moving on to next file\n");
+#endif
   if (NULL != p->dir)
-    signal_publish_completion (p, sc);
+    signal_publish_completion (p, pc);    
   /* move on to next file */
   if (NULL != p->next)
-    sc->fi_pos = p->next;
+    pc->fi_pos = p->next;
   else
-    sc->fi_pos = p->dir;
-  sc->upload_task 
-    = GNUNET_SCHEDULER_add_with_priority (sc->h->sched,
+    pc->fi_pos = p->dir;
+  GNUNET_FS_publish_sync_ (pc);
+  pc->upload_task 
+    = GNUNET_SCHEDULER_add_with_priority (pc->h->sched,
                                          GNUNET_SCHEDULER_PRIORITY_BACKGROUND,
-                                         &do_upload,
-                                         sc);
+                                         &GNUNET_FS_publish_main_,
+                                         pc);
 }
 
 
@@ -402,7 +461,7 @@ encode_cont (void *cls,
   struct GNUNET_FS_FileInformation *p;
   struct GNUNET_FS_ProgressInfo pi;
   char *emsg;
-  
+
   p = sc->fi_pos;
   GNUNET_FS_tree_encoder_finish (p->te,
                                 &p->chk_uri,
@@ -410,25 +469,39 @@ encode_cont (void *cls,
   p->te = NULL;
   if (NULL != emsg)
     {
+#if DEBUG_PUBLISH
+      GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+                 "Error during tree walk: %s\n",
+                 emsg);
+#endif
       GNUNET_asprintf (&p->emsg, 
-                      _("Upload failed: %s"),
+                      _("Publishing failed: %s"),
                       emsg);
       GNUNET_free (emsg);
-      GNUNET_FS_file_information_sync (p);
       pi.status = GNUNET_FS_STATUS_PUBLISH_ERROR;
-      make_publish_status (&pi, sc, p, 0);
       pi.value.publish.eta = GNUNET_TIME_UNIT_FOREVER_REL;
       pi.value.publish.specifics.error.message = p->emsg;
-      p->client_info
-       = sc->h->upcb (sc->h->upcb_cls,
-                      &pi);
+      p->client_info =  GNUNET_FS_publish_make_status_ (&pi, sc, p, 0);
     }
+#if DEBUG_PUBLISH
+  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+             "Finished with tree encoder\n");
+#endif  
+  /* final progress event */
+  pi.status = GNUNET_FS_STATUS_PUBLISH_PROGRESS;
+  pi.value.publish.specifics.progress.data = NULL;
+  pi.value.publish.specifics.progress.offset = GNUNET_FS_uri_chk_get_file_size (p->chk_uri);
+  pi.value.publish.specifics.progress.data_len = 0;
+  pi.value.publish.specifics.progress.depth = 0;
+  p->client_info = GNUNET_FS_publish_make_status_ (&pi, sc, p, 
+                                                  GNUNET_FS_uri_chk_get_file_size (p->chk_uri));
+
   /* continue with main */
   sc->upload_task 
     = GNUNET_SCHEDULER_add_with_priority (sc->h->sched,
                                          GNUNET_SCHEDULER_PRIORITY_BACKGROUND,
-                                   &do_upload,
-                                   sc);
+                                         &GNUNET_FS_publish_main_,
+                                         sc);
 }
 
 
@@ -449,7 +522,7 @@ static void
 block_proc (void *cls,
            const GNUNET_HashCode *query,
            uint64_t offset,
-           uint32_t type,
+           enum GNUNET_BLOCK_Type type,
            const void *block,
            uint16_t block_size)
 {
@@ -461,24 +534,28 @@ block_proc (void *cls,
   p = sc->fi_pos;
   if (NULL == sc->dsh)
     {
+#if DEBUG_PUBLISH
+      GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+                 "Waiting for datastore connection\n");
+#endif
       sc->upload_task
        = GNUNET_SCHEDULER_add_with_priority (sc->h->sched,
-                                       GNUNET_SCHEDULER_PRIORITY_BACKGROUND,
-                                       &do_upload,
-                                       sc);
+                                             GNUNET_SCHEDULER_PRIORITY_BACKGROUND,
+                                             &GNUNET_FS_publish_main_,
+                                             sc);
       return;
     }
   
   GNUNET_assert (GNUNET_NO == sc->in_network_wait);
   sc->in_network_wait = GNUNET_YES;
   dpc_cls = GNUNET_malloc(sizeof(struct PutContCtx));
-  dpc_cls->cont = &do_upload;
+  dpc_cls->cont = &GNUNET_FS_publish_main_;
   dpc_cls->cont_cls = sc;
   dpc_cls->sc = sc;
   dpc_cls->p = p;
   if ( (! p->is_directory) &&
        (GNUNET_YES == p->data.file.do_index) &&
-       (type == GNUNET_DATASTORE_BLOCKTYPE_DBLOCK) )
+       (type == GNUNET_BLOCK_TYPE_DBLOCK) )
     {
 #if DEBUG_PUBLISH
       GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
@@ -490,14 +567,15 @@ block_proc (void *cls,
       odb.offset = GNUNET_htonll (offset);
       odb.file_id = p->data.file.file_id;
       GNUNET_DATASTORE_put (sc->dsh,
-                           sc->rid,
+                           (p->is_directory) ? 0 : sc->rid,
                            query,
                            sizeof(struct OnDemandBlock),
                            &odb,
-                           GNUNET_DATASTORE_BLOCKTYPE_ONDEMAND,
+                           GNUNET_BLOCK_TYPE_ONDEMAND,
                            p->priority,
                            p->anonymity,
                            p->expirationTime,
+                           -2, 1,
                            GNUNET_CONSTANTS_SERVICE_TIMEOUT,
                            &ds_put_cont,
                            dpc_cls);     
@@ -511,7 +589,7 @@ block_proc (void *cls,
              (unsigned int) block_size);
 #endif
   GNUNET_DATASTORE_put (sc->dsh,
-                       sc->rid,
+                       (p->is_directory) ? 0 : sc->rid,
                        query,
                        block_size,
                        block,
@@ -519,6 +597,7 @@ block_proc (void *cls,
                        p->priority,
                        p->anonymity,
                        p->expirationTime,
+                       -2, 1,
                        GNUNET_CONSTANTS_SERVICE_TIMEOUT,
                        &ds_put_cont,
                        dpc_cls);
@@ -548,14 +627,11 @@ progress_proc (void *cls,
 
   p = sc->fi_pos;
   pi.status = GNUNET_FS_STATUS_PUBLISH_PROGRESS;
-  make_publish_status (&pi, sc, p, offset);
   pi.value.publish.specifics.progress.data = pt_block;
   pi.value.publish.specifics.progress.offset = offset;
   pi.value.publish.specifics.progress.data_len = pt_size;
   pi.value.publish.specifics.progress.depth = depth;
-  p->client_info 
-    = sc->h->upcb (sc->h->upcb_cls,
-                  &pi);
+  p->client_info = GNUNET_FS_publish_make_status_ (&pi, sc, p, offset);
 }
 
 
@@ -577,10 +653,15 @@ publish_content (struct GNUNET_FS_PublishContext *sc)
   uint64_t size;
 
   p = sc->fi_pos;
+  GNUNET_assert (p != NULL);
   if (NULL == p->te)
     {
       if (p->is_directory)
        {
+#if DEBUG_PUBLISH
+         GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+                     "Creating directory\n");
+#endif
          db = GNUNET_FS_directory_builder_create (p->meta);
          dirpos = p->data.dir.entries;
          while (NULL != dirpos)
@@ -621,10 +702,15 @@ publish_content (struct GNUNET_FS_PublishContext *sc)
          GNUNET_FS_directory_builder_finish (db,
                                              &p->data.dir.dir_size,
                                              &p->data.dir.dir_data);
+         GNUNET_FS_file_information_sync_ (p);
        }
       size = (p->is_directory) 
        ? p->data.dir.dir_size 
        : p->data.file.file_size;
+#if DEBUG_PUBLISH
+      GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+                 "Creating tree encoder\n");
+#endif
       p->te = GNUNET_FS_tree_encoder_create (sc->h,
                                             size,
                                             sc,
@@ -634,6 +720,10 @@ publish_content (struct GNUNET_FS_PublishContext *sc)
                                             &encode_cont);
 
     }
+#if DEBUG_PUBLISH
+  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+             "Processing next block from tree\n");
+#endif
   GNUNET_FS_tree_encoder_next (p->te);
 }
 
@@ -661,9 +751,10 @@ process_index_start_response (void *cls,
     {
       GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
                  _("Can not index file `%s': %s.  Will try to insert instead.\n"),
-                 p->data.file.filename,
+                 p->filename,
                  _("timeout on index-start request to `fs' service"));
       p->data.file.do_index = GNUNET_NO;
+      GNUNET_FS_file_information_sync_ (p);
       publish_content (sc);
       return;
     }
@@ -676,14 +767,16 @@ process_index_start_response (void *cls,
        emsg = gettext_noop ("unknown error");
       GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
                  _("Can not index file `%s': %s.  Will try to insert instead.\n"),
-                 p->data.file.filename,
+                 p->filename,
                  gettext (emsg));
       p->data.file.do_index = GNUNET_NO;
+      GNUNET_FS_file_information_sync_ (p);
       publish_content (sc);
       return;
     }
   p->data.file.index_start_confirmed = GNUNET_YES;
   /* success! continue with indexing */
+  GNUNET_FS_file_information_sync_ (p);
   publish_content (sc);
 }
 
@@ -705,17 +798,20 @@ hash_for_index_cb (void *cls,
   struct IndexStartMessage *ism;
   size_t slen;
   struct GNUNET_CLIENT_Connection *client;
-  uint32_t dev;
+  uint64_t dev;
   uint64_t ino;
+  char *fn;
 
+  sc->fhc = NULL;
   p = sc->fi_pos;
   if (NULL == res) 
     {
       GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
                  _("Can not index file `%s': %s.  Will try to insert instead.\n"),
-                 p->data.file.filename,
+                 p->filename,
                  _("failed to compute hash"));
       p->data.file.do_index = GNUNET_NO;
+      GNUNET_FS_file_information_sync_ (p);
       publish_content (sc);
       return;
     }
@@ -724,21 +820,25 @@ hash_for_index_cb (void *cls,
       publish_content (sc);
       return;
     }
-  slen = strlen (p->data.file.filename) + 1;
-  if (slen > GNUNET_SERVER_MAX_MESSAGE_SIZE - sizeof(struct IndexStartMessage))
+  fn = GNUNET_STRINGS_filename_expand (p->filename);
+  GNUNET_assert (fn != NULL);
+  slen = strlen (fn) + 1;
+  if (slen >= GNUNET_SERVER_MAX_MESSAGE_SIZE - sizeof(struct IndexStartMessage))
     {
       GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
                  _("Can not index file `%s': %s.  Will try to insert instead.\n"),
-                 p->data.file.filename,
+                 fn,
                  _("filename too long"));
+      GNUNET_free (fn);
       p->data.file.do_index = GNUNET_NO;
+      GNUNET_FS_file_information_sync_ (p);
       publish_content (sc);
       return;
     }
 #if DEBUG_PUBLISH
   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
              "Hash of indexed file `%s' is `%s'\n",
-             p->data.file.filename,
+             p->filename,
              GNUNET_h2s (res));
 #endif
   client = GNUNET_CLIENT_connect (sc->h->sched,
@@ -748,37 +848,45 @@ hash_for_index_cb (void *cls,
     {
       GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
                  _("Can not index file `%s': %s.  Will try to insert instead.\n"),
-                 p->data.file.filename,
+                 p->filename,
                  _("could not connect to `fs' service"));
       p->data.file.do_index = GNUNET_NO;
       publish_content (sc);
+      GNUNET_free (fn);
       return;
     }
-  p->data.file.file_id = *res;
-  p->data.file.have_hash = GNUNET_YES;
+  if (p->data.file.have_hash != GNUNET_YES)
+    {
+      p->data.file.file_id = *res;
+      p->data.file.have_hash = GNUNET_YES;
+      GNUNET_FS_file_information_sync_ (p);
+    }
   ism = GNUNET_malloc (sizeof(struct IndexStartMessage) +
                       slen);
   ism->header.size = htons(sizeof(struct IndexStartMessage) +
                           slen);
   ism->header.type = htons(GNUNET_MESSAGE_TYPE_FS_INDEX_START);
   if (GNUNET_OK ==
-      GNUNET_DISK_file_get_identifiers (p->data.file.filename,
+      GNUNET_DISK_file_get_identifiers (p->filename,
                                        &dev,
                                        &ino))
     {
-      ism->device = htonl (dev);
+      ism->device = GNUNET_htonll (dev);
       ism->inode = GNUNET_htonll(ino);
     }
+#if DEBUG_PUBLISH
   else
     {
-      GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
+      GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
                  _("Failed to get file identifiers for `%s'\n"),
-                 p->data.file.filename);
+                 p->filename);
     }
+#endif
   ism->file_id = *res;
   memcpy (&ism[1],
-         p->data.file.filename,
+         fn,
          slen);
+  GNUNET_free (fn);
   sc->client = client;
   GNUNET_break (GNUNET_YES ==
                GNUNET_CLIENT_transmit_and_get_response (client,
@@ -793,25 +901,32 @@ hash_for_index_cb (void *cls,
 
 /**
  * Main function that performs the upload.
+ *
  * @param cls "struct GNUNET_FS_PublishContext" identifies the upload
  * @param tc task context
  */
-static void
-do_upload (void *cls,
-          const struct GNUNET_SCHEDULER_TaskContext *tc)
+void
+GNUNET_FS_publish_main_ (void *cls,
+                        const struct GNUNET_SCHEDULER_TaskContext *tc)
 {
-  struct GNUNET_FS_PublishContext *sc = cls;
+  struct GNUNET_FS_PublishContext *pc = cls;
   struct GNUNET_FS_ProgressInfo pi;
   struct GNUNET_FS_FileInformation *p;
+  struct GNUNET_FS_Uri *loc;
   char *fn;
 
-  sc->upload_task = GNUNET_SCHEDULER_NO_TASK;  
-  p = sc->fi_pos;
+  pc->upload_task = GNUNET_SCHEDULER_NO_TASK;  
+  p = pc->fi_pos;
   if (NULL == p)
     {
+#if DEBUG_PUBLISH
+      GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+                 "Publishing complete, now publishing SKS and KSK blocks.\n");
+#endif
       /* upload of entire hierarchy complete,
         publish namespace entries */
-      publish_sblock (sc);
+      GNUNET_FS_publish_sync_ (pc);
+      publish_sblock (pc);
       return;
     }
   /* find starting position */
@@ -821,11 +936,17 @@ do_upload (void *cls,
          (NULL == p->data.dir.entries->chk_uri) )
     {
       p = p->data.dir.entries;
-      sc->fi_pos = p;
+      pc->fi_pos = p;
+      GNUNET_FS_publish_sync_ (pc);
     }
   /* abort on error */
   if (NULL != p->emsg)
     {
+#if DEBUG_PUBLISH
+      GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+                 "Error uploading: %s\n",
+                 p->emsg);
+#endif
       /* error with current file, abort all
         related files as well! */
       while (NULL != p->dir)
@@ -847,38 +968,49 @@ do_upload (void *cls,
                               _("Recursive upload failed: %s"),
                               p->emsg);              
            }
-         GNUNET_FS_file_information_sync (p);
          pi.status = GNUNET_FS_STATUS_PUBLISH_ERROR;
-         make_publish_status (&pi, sc, p, 0);
          pi.value.publish.eta = GNUNET_TIME_UNIT_FOREVER_REL;
          pi.value.publish.specifics.error.message = p->emsg;
-         p->client_info
-           = sc->h->upcb (sc->h->upcb_cls,
-                          &pi);
+         p->client_info = GNUNET_FS_publish_make_status_ (&pi, pc, p, 0);
        }
-      sc->all_done = GNUNET_YES;
+      pc->all_done = GNUNET_YES;
+      GNUNET_FS_publish_sync_ (pc);
       return;
     }
   /* handle completion */
   if (NULL != p->chk_uri)
     {
+#if DEBUG_PUBLISH
+      GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+                 "File upload complete, now publishing KSK blocks.\n");
+#endif
+      if (0 == p->anonymity)
+       {
+         /* zero anonymity, box CHK URI in LOC URI */
+         loc = GNUNET_FS_uri_loc_create (p->chk_uri,
+                                         pc->h->cfg,
+                                         p->expirationTime);
+         GNUNET_FS_uri_destroy (p->chk_uri);
+         p->chk_uri = loc;
+       }
+      GNUNET_FS_publish_sync_ (pc);
       /* upload of "p" complete, publish KBlocks! */
       if (p->keywords != NULL)
        {
-         GNUNET_FS_publish_ksk (sc->h,
+         GNUNET_FS_publish_ksk (pc->h,
                                 p->keywords,
                                 p->meta,
                                 p->chk_uri,
                                 p->expirationTime,
                                 p->anonymity,
                                 p->priority,
-                                sc->options,
+                                pc->options,
                                 &publish_kblocks_cont,
-                                sc);
+                                pc);
        }
       else
        {
-         publish_kblocks_cont (sc,
+         publish_kblocks_cont (pc,
                                p->chk_uri,
                                NULL);
        }
@@ -887,32 +1019,35 @@ do_upload (void *cls,
   if ( (!p->is_directory) &&
        (p->data.file.do_index) )
     {
-      if (NULL == p->data.file.filename)
+      if (NULL == p->filename)
        {
          p->data.file.do_index = GNUNET_NO;
          GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
                      _("Can not index file `%s': %s.  Will try to insert instead.\n"),
                      "<no-name>",
                      _("needs to be an actual file"));
-         publish_content (sc);
+         GNUNET_FS_file_information_sync_ (p);
+         publish_content (pc);
          return;
        }      
       if (p->data.file.have_hash)
-       hash_for_index_cb (sc,
-                          &p->data.file.file_id);
+       {
+         hash_for_index_cb (pc,
+                            &p->data.file.file_id);
+       }
       else
        {
          p->start_time = GNUNET_TIME_absolute_get ();
-         GNUNET_CRYPTO_hash_file (sc->h->sched,
-                                  GNUNET_SCHEDULER_PRIORITY_IDLE,
-                                  p->data.file.filename,
-                                  HASHING_BLOCKSIZE,
-                                  &hash_for_index_cb,
-                                  sc);
+         pc->fhc = GNUNET_CRYPTO_hash_file (pc->h->sched,
+                                            GNUNET_SCHEDULER_PRIORITY_IDLE,
+                                            p->filename,
+                                            HASHING_BLOCKSIZE,
+                                            &hash_for_index_cb,
+                                            pc);
        }
       return;
     }
-  publish_content (sc);
+  publish_content (pc);
 }
 
 
@@ -927,6 +1062,7 @@ do_upload (void *cls,
  * @param uri pointer to the keywords that will be used for this entry (can be modified)
  * @param anonymity pointer to selected anonymity level (can be modified)
  * @param priority pointer to selected priority (can be modified)
+ * @param do_index should we index?
  * @param expirationTime pointer to selected expiration time (can be modified)
  * @param client_info pointer to client context set upon creation (can be modified)
  * @return GNUNET_OK to continue (always)
@@ -939,20 +1075,158 @@ fip_signal_start(void *cls,
                 struct GNUNET_FS_Uri **uri,
                 uint32_t *anonymity,
                 uint32_t *priority,
+                int *do_index,
                 struct GNUNET_TIME_Absolute *expirationTime,
                 void **client_info)
 {
   struct GNUNET_FS_PublishContext *sc = cls;
   struct GNUNET_FS_ProgressInfo pi;
+  unsigned int kc;
+  uint64_t left;
 
+  if (*do_index)
+    {
+      /* space for on-demand blocks */
+      sc->reserve_space += ((length + DBLOCK_SIZE - 1) / DBLOCK_SIZE) * sizeof (struct OnDemandBlock);
+    }
+  else
+    {
+      /* space for DBlocks */
+      sc->reserve_space += length;
+    }
+  /* entries for IBlocks and DBlocks, space for IBlocks */
+  left = length;
+  while (1)
+    {
+      left = (left + DBLOCK_SIZE - 1) / DBLOCK_SIZE;
+      sc->reserve_entries += left;
+      if (left <= 1)
+       break;
+      left = left * sizeof (struct ContentHashKey);
+      sc->reserve_space += left;
+    }
+  sc->reserve_entries++;
+  /* entries and space for keywords */
+  if (NULL != *uri)
+    {
+      kc = GNUNET_FS_uri_ksk_get_keyword_count (*uri);
+      sc->reserve_entries += kc;
+      sc->reserve_space += GNUNET_SERVER_MAX_MESSAGE_SIZE * kc;
+    }  
   pi.status = GNUNET_FS_STATUS_PUBLISH_START;
-  make_publish_status (&pi, sc, fi, 0);
-  *client_info = sc->h->upcb (sc->h->upcb_cls,
-                             &pi);
+  *client_info = GNUNET_FS_publish_make_status_ (&pi, sc, fi, 0);
+  GNUNET_FS_file_information_sync_ (fi);
   return GNUNET_OK;
 }
 
 
+/**
+ * Signal the FS's progress function that we are suspending
+ * an upload.
+ *
+ * @param cls closure (of type "struct GNUNET_FS_PublishContext*")
+ * @param fi the entry in the publish-structure
+ * @param length length of the file or directory
+ * @param meta metadata for the file or directory (can be modified)
+ * @param uri pointer to the keywords that will be used for this entry (can be modified)
+ * @param anonymity pointer to selected anonymity level (can be modified)
+ * @param priority pointer to selected priority (can be modified)
+ * @param do_index should we index?
+ * @param expirationTime pointer to selected expiration time (can be modified)
+ * @param client_info pointer to client context set upon creation (can be modified)
+ * @return GNUNET_OK to continue (always)
+ */
+static int
+fip_signal_suspend(void *cls,
+                  struct GNUNET_FS_FileInformation *fi,
+                  uint64_t length,
+                  struct GNUNET_CONTAINER_MetaData *meta,
+                  struct GNUNET_FS_Uri **uri,
+                  uint32_t *anonymity,
+                  uint32_t *priority,
+                  int *do_index,
+                  struct GNUNET_TIME_Absolute *expirationTime,
+                  void **client_info)
+{
+  struct GNUNET_FS_PublishContext*sc = cls;
+  struct GNUNET_FS_ProgressInfo pi;
+  uint64_t off;
+
+  GNUNET_free_non_null (fi->serialization);
+  fi->serialization = NULL;    
+  off = (fi->chk_uri == NULL) ? 0 : length;
+  pi.status = GNUNET_FS_STATUS_PUBLISH_SUSPEND;
+  GNUNET_break (NULL == GNUNET_FS_publish_make_status_ (&pi, sc, fi, off));
+  *client_info = NULL;
+  if (NULL != sc->dsh)
+    {
+      GNUNET_DATASTORE_disconnect (sc->dsh, GNUNET_NO);
+      sc->dsh = NULL;
+    }
+  return GNUNET_OK;
+}
+
+
+/**
+ * Create SUSPEND event for the given publish operation
+ * and then clean up our state (without stop signal).
+ *
+ * @param cls the 'struct GNUNET_FS_PublishContext' to signal for
+ */
+void
+GNUNET_FS_publish_signal_suspend_ (void *cls)
+{
+  struct GNUNET_FS_PublishContext *pc = cls;
+
+  if (GNUNET_SCHEDULER_NO_TASK != pc->upload_task)
+    {
+      GNUNET_SCHEDULER_cancel (pc->h->sched, pc->upload_task);
+      pc->upload_task = GNUNET_SCHEDULER_NO_TASK;
+    }
+  GNUNET_FS_file_information_inspect (pc->fi,
+                                     &fip_signal_suspend,
+                                     pc);
+  GNUNET_FS_end_top (pc->h, pc->top);
+  publish_cleanup (pc, NULL);
+}
+
+
+/**
+ * We have gotten a reply for our space reservation request.
+ * Either fail (insufficient space) or start publishing for good.
+ * 
+ * @param cls the 'struct GNUNET_FS_PublishContext*'
+ * @param success positive reservation ID on success
+ * @param msg error message on error, otherwise NULL
+ */
+static void
+finish_reserve (void *cls,
+               int success,
+               const char *msg)
+{
+  struct GNUNET_FS_PublishContext *pc = cls;
+
+  pc->qre = NULL;
+  if ( (msg != NULL) ||
+       (success <= 0) )
+    {
+      GNUNET_asprintf (&pc->fi->emsg, 
+                      _("Insufficient space for publishing: %s"),
+                      msg);
+      signal_publish_error (pc->fi,
+                           pc,
+                           pc->fi->emsg);
+      return;
+    }
+  pc->rid = success;
+  pc->upload_task 
+    = GNUNET_SCHEDULER_add_with_priority (pc->h->sched,
+                                         GNUNET_SCHEDULER_PRIORITY_BACKGROUND,
+                                         &GNUNET_FS_publish_main_,
+                                         pc);
+}
+
+
 /**
  * Publish a file or directory.
  *
@@ -977,6 +1251,7 @@ GNUNET_FS_publish_start (struct GNUNET_FS_Handle *h,
   struct GNUNET_FS_PublishContext *ret;
   struct GNUNET_DATASTORE_Handle *dsh;
 
+  GNUNET_assert (NULL != h);
   if (0 == (options & GNUNET_FS_PUBLISH_OPTION_SIMULATE_ONLY))
     {
       dsh = GNUNET_DATASTORE_connect (h->cfg,
@@ -1001,22 +1276,36 @@ GNUNET_FS_publish_start (struct GNUNET_FS_Handle *h,
       if (NULL != nuid)
        ret->nuid = GNUNET_strdup (nuid);
     }
-  // FIXME: make upload persistent!
-
   /* signal start */
   GNUNET_FS_file_information_inspect (ret->fi,
                                      &fip_signal_start,
                                      ret);
   ret->fi_pos = ret->fi;
-
-  // FIXME: calculate space needed for "fi"
-  // and reserve as first task (then trigger
-  // "do_upload" from that continuation)!
-  ret->upload_task 
-    = GNUNET_SCHEDULER_add_with_priority (h->sched,
-                                   GNUNET_SCHEDULER_PRIORITY_BACKGROUND,
-                                   &do_upload,
-                                   ret);
+  ret->top = GNUNET_FS_make_top (h, &GNUNET_FS_publish_signal_suspend_, ret);
+  GNUNET_FS_publish_sync_ (ret);
+  if (NULL != ret->dsh)
+    {
+      GNUNET_log (GNUNET_ERROR_TYPE_INFO,
+                 _("Reserving space for %u entries and %llu bytes for publication\n"),
+                 (unsigned int) ret->reserve_entries,
+                 (unsigned long long) ret->reserve_space);
+      ret->qre = GNUNET_DATASTORE_reserve (ret->dsh,
+                                          ret->reserve_space,
+                                          ret->reserve_entries,
+                                          UINT_MAX,
+                                          UINT_MAX,
+                                          GNUNET_TIME_UNIT_FOREVER_REL,
+                                          &finish_reserve,
+                                          ret);
+    }
+  else
+    {
+      ret->upload_task 
+       = GNUNET_SCHEDULER_add_with_priority (h->sched,
+                                             GNUNET_SCHEDULER_PRIORITY_BACKGROUND,
+                                             &GNUNET_FS_publish_main_,
+                                             ret);
+    }
   return ret;
 }
 
@@ -1032,6 +1321,7 @@ GNUNET_FS_publish_start (struct GNUNET_FS_Handle *h,
  * @param uri pointer to the keywords that will be used for this entry (can be modified)
  * @param anonymity pointer to selected anonymity level (can be modified)
  * @param priority pointer to selected priority (can be modified)
+ * @param do_index should we index?
  * @param expirationTime pointer to selected expiration time (can be modified)
  * @param client_info pointer to client context set upon creation (can be modified)
  * @return GNUNET_OK to continue (always)
@@ -1044,6 +1334,7 @@ fip_signal_stop(void *cls,
                struct GNUNET_FS_Uri **uri,
                uint32_t *anonymity,
                uint32_t *priority,
+               int *do_index,
                struct GNUNET_TIME_Absolute *expirationTime,
                void **client_info)
 {
@@ -1051,12 +1342,17 @@ fip_signal_stop(void *cls,
   struct GNUNET_FS_ProgressInfo pi;
   uint64_t off;
 
+  if (fi->serialization != NULL) 
+    {
+      GNUNET_FS_remove_sync_file_ (sc->h,
+                                  GNUNET_FS_SYNC_PATH_FILE_INFO,
+                                  fi->serialization);
+      GNUNET_free (fi->serialization);
+      fi->serialization = NULL;
+    }
   off = (fi->chk_uri == NULL) ? 0 : length;
   pi.status = GNUNET_FS_STATUS_PUBLISH_STOPPED;
-  make_publish_status (&pi, sc, fi, off);
-  GNUNET_break (NULL ==
-               sc->h->upcb (sc->h->upcb_cls,
-                            &pi));
+  GNUNET_break (NULL == GNUNET_FS_publish_make_status_ (&pi, sc, fi, off));
   *client_info = NULL;
   return GNUNET_OK;
 }
@@ -1068,26 +1364,42 @@ fip_signal_stop(void *cls,
  * simply clean up the state for completed uploads.
  * Must NOT be called from within the event callback!
  *
- * @param sc context for the upload to stop
+ * @param pc context for the upload to stop
  */
 void 
-GNUNET_FS_publish_stop (struct GNUNET_FS_PublishContext *sc)
+GNUNET_FS_publish_stop (struct GNUNET_FS_PublishContext *pc)
 {
-  if (GNUNET_SCHEDULER_NO_TASK != sc->upload_task)
-    GNUNET_SCHEDULER_cancel (sc->h->sched, sc->upload_task);
-  else
-    GNUNET_assert (sc->all_done == GNUNET_YES);
-  // FIXME: remove from persistence DB (?) --- think more about
-  //        shutdown / persistent-resume APIs!!!
-  GNUNET_FS_file_information_inspect (sc->fi,
+  GNUNET_FS_end_top (pc->h, pc->top);
+  if (NULL != pc->qre)
+    {
+      GNUNET_DATASTORE_cancel (pc->qre);
+      pc->qre = NULL;
+    }
+  if (NULL != pc->dsh)
+    {
+      GNUNET_DATASTORE_disconnect (pc->dsh, GNUNET_NO);
+      pc->dsh = NULL;
+    }
+  if (GNUNET_SCHEDULER_NO_TASK != pc->upload_task)
+    {
+      GNUNET_SCHEDULER_cancel (pc->h->sched, pc->upload_task);
+      pc->upload_task = GNUNET_SCHEDULER_NO_TASK;
+    }
+  if (pc->serialization != NULL) 
+    {
+      GNUNET_FS_remove_sync_file_ (pc->h, GNUNET_FS_SYNC_PATH_MASTER_PUBLISH, pc->serialization);
+      GNUNET_free (pc->serialization);
+      pc->serialization = NULL;
+    }
+  GNUNET_FS_file_information_inspect (pc->fi,
                                      &fip_signal_stop,
-                                     sc);
-  if (GNUNET_YES == sc->in_network_wait)
+                                     pc);
+  if (GNUNET_YES == pc->in_network_wait)
     {
-      sc->in_network_wait = GNUNET_SYSERR;
+      pc->in_network_wait = GNUNET_SYSERR;
       return;
     }
-  publish_cleanup (sc);
+  publish_cleanup (pc, NULL);
 }
 
 
@@ -1198,7 +1510,11 @@ kb_put_cont (void *cls,
 
   if (GNUNET_OK != success)
     {
-      GNUNET_DATASTORE_disconnect (pkc->dsh, GNUNET_NO);
+      if (NULL != pkc->dsh)
+       {
+         GNUNET_DATASTORE_disconnect (pkc->dsh, GNUNET_NO);
+         pkc->dsh = NULL;
+       }
       GNUNET_free (pkc->cpy);
       GNUNET_free (pkc->kb);
       pkc->cont (pkc->cont_cls,
@@ -1239,7 +1555,10 @@ publish_ksk_cont (void *cls,
        (NULL == pkc->dsh) )
     {
       if (NULL != pkc->dsh)
-       GNUNET_DATASTORE_disconnect (pkc->dsh, GNUNET_NO);
+       {
+         GNUNET_DATASTORE_disconnect (pkc->dsh, GNUNET_NO);
+         pkc->dsh = NULL;
+       }
       GNUNET_free (pkc->cpy);
       GNUNET_free (pkc->kb);
       pkc->cont (pkc->cont_cls,
@@ -1260,6 +1579,7 @@ publish_ksk_cont (void *cls,
                             &iv,
                             &pkc->cpy[1]);
   pk = GNUNET_CRYPTO_rsa_key_create_from_hash (&key);
+  GNUNET_assert (NULL != pk);
   GNUNET_CRYPTO_rsa_key_get_public (pk, &pkc->cpy->keyspace);
   GNUNET_CRYPTO_hash (&pkc->cpy->keyspace,
                      sizeof (struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded),
@@ -1276,10 +1596,11 @@ publish_ksk_cont (void *cls,
                        sizeof (struct KBlock) + 
                        pkc->slen,
                        pkc->cpy,
-                       GNUNET_DATASTORE_BLOCKTYPE_KBLOCK, 
+                       GNUNET_BLOCK_TYPE_KBLOCK, 
                        pkc->priority,
                        pkc->anonymity,
                        pkc->expirationTime,
+                       -2, 1,
                        GNUNET_CONSTANTS_SERVICE_TIMEOUT,
                        &kb_put_cont,
                        pkc);
@@ -1364,7 +1685,10 @@ GNUNET_FS_publish_ksk (struct GNUNET_FS_Handle *h,
       GNUNET_break (0);
       GNUNET_free (pkc->kb);
       if (pkc->dsh != NULL)
-       GNUNET_DATASTORE_disconnect (pkc->dsh, GNUNET_NO);
+       {
+         GNUNET_DATASTORE_disconnect (pkc->dsh, GNUNET_NO);
+         pkc->dsh = NULL;
+       }
       cont (cont_cls, NULL, _("Internal error."));
       GNUNET_free (pkc);
       return;
@@ -1385,214 +1709,4 @@ GNUNET_FS_publish_ksk (struct GNUNET_FS_Handle *h,
 }
 
 
-/**
- * Context for the SKS publication.
- */
-struct PublishSksContext
-{
-
-  /**
-   * Global FS context.
-   */
-  struct GNUNET_FS_Uri *uri;
-
-  /**
-   * Handle to the datastore.
-   */
-  struct GNUNET_DATASTORE_Handle *dsh;
-
-  /**
-   * Function to call once we're done.
-   */
-  GNUNET_FS_PublishContinuation cont;
-
-  /**
-   * Closure for cont.
-   */ 
-  void *cont_cls;
-
-};
-
-
-/**
- * Function called by the datastore API with
- * the result from the PUT (SBlock) request.
- *
- * @param cls closure of type "struct PublishSksContext*"
- * @param success GNUNET_OK on success
- * @param msg error message (or NULL)
- */
-static void
-sb_put_cont (void *cls,
-            int success,
-            const char *msg)
-{
-  struct PublishSksContext *psc = cls;
-
-  if (NULL != psc->dsh)
-    GNUNET_DATASTORE_disconnect (psc->dsh, GNUNET_NO);
-  if (GNUNET_OK != success)
-    psc->cont (psc->cont_cls,
-              NULL,
-              msg);
-  else
-    psc->cont (psc->cont_cls,
-              psc->uri,
-              NULL);
-  GNUNET_FS_uri_destroy (psc->uri);
-  GNUNET_free (psc);
-}
-
-
-/**
- * Publish an SBlock on GNUnet.
- *
- * @param h handle to the file sharing subsystem
- * @param namespace namespace to publish in
- * @param identifier identifier to use
- * @param update update identifier to use
- * @param meta metadata to use
- * @param uri URI to refer to in the SBlock
- * @param expirationTime when the SBlock expires
- * @param anonymity anonymity level for the SBlock
- * @param priority priority for the SBlock
- * @param options publication options
- * @param cont continuation
- * @param cont_cls closure for cont
- */
-void
-GNUNET_FS_publish_sks (struct GNUNET_FS_Handle *h,
-                      struct GNUNET_FS_Namespace *namespace,
-                      const char *identifier,
-                      const char *update,
-                      struct GNUNET_CONTAINER_MetaData *meta,
-                      const struct GNUNET_FS_Uri *uri,
-                      struct GNUNET_TIME_Absolute expirationTime,
-                      uint32_t anonymity,
-                      uint32_t priority,
-                      enum GNUNET_FS_PublishOptions options,
-                      GNUNET_FS_PublishContinuation cont,
-                      void *cont_cls)
-{
-  struct PublishSksContext *psc;
-  struct GNUNET_CRYPTO_AesSessionKey sk;
-  struct GNUNET_CRYPTO_AesInitializationVector iv;
-  struct GNUNET_FS_Uri *sks_uri;
-  char *uris;
-  size_t size;
-  size_t slen;
-  size_t nidlen;
-  size_t idlen;
-  ssize_t mdsize;
-  struct SBlock *sb;
-  struct SBlock *sb_enc;
-  char *dest;
-  GNUNET_HashCode key;         /* hash of thisId = key */
-  GNUNET_HashCode id;          /* hash of hc = identifier */
-  GNUNET_HashCode query;       /* id ^ nsid = DB query */
-
-  uris = GNUNET_FS_uri_to_string (uri);
-  slen = strlen (uris) + 1;
-  idlen = strlen (identifier);
-  if (update == NULL)
-    update = "";
-  nidlen = strlen (update) + 1;
-  mdsize = GNUNET_CONTAINER_meta_data_get_serialized_size (meta);
-  size = sizeof (struct SBlock) + slen + nidlen + mdsize;
-  if (size > MAX_SBLOCK_SIZE)
-    {
-      size = MAX_SBLOCK_SIZE;
-      mdsize = size - (sizeof (struct SBlock) + slen + nidlen);
-    }
-  sb = GNUNET_malloc (sizeof (struct SBlock) + size);
-  dest = (char *) &sb[1];
-  memcpy (dest, update, nidlen);
-  dest += nidlen;
-  memcpy (dest, uris, slen);
-  dest += slen;
-  mdsize = GNUNET_CONTAINER_meta_data_serialize (meta,
-                                                &dest,
-                                                mdsize, 
-                                                GNUNET_CONTAINER_META_DATA_SERIALIZE_PART);
-  if (mdsize == -1)
-    {
-      GNUNET_break (0);
-      GNUNET_free (uris);
-      GNUNET_free (sb);
-      cont (cont_cls,
-           NULL,
-           _("Internal error."));
-      return;
-    }
-  size = sizeof (struct SBlock) + mdsize + slen + nidlen;
-  sb_enc = GNUNET_malloc (size);
-  GNUNET_CRYPTO_hash (identifier, idlen, &key);
-  GNUNET_CRYPTO_hash (&key, sizeof (GNUNET_HashCode), &id);
-  sks_uri = GNUNET_malloc (sizeof (struct GNUNET_FS_Uri));
-  sks_uri->type = sks;
-  GNUNET_CRYPTO_rsa_key_get_public (namespace->key, &sb_enc->subspace);
-  GNUNET_CRYPTO_hash (&sb_enc->subspace,
-                     sizeof (struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded),
-                     &sks_uri->data.sks.namespace);
-  sks_uri->data.sks.identifier = GNUNET_strdup (identifier);
-  GNUNET_CRYPTO_hash_xor (&id, 
-                         &sks_uri->data.sks.namespace, 
-                         &sb_enc->identifier);
-  GNUNET_CRYPTO_hash_to_aes_key (&key, &sk, &iv);
-  GNUNET_CRYPTO_aes_encrypt (&sb[1],
-                            size - sizeof (struct SBlock),
-                            &sk,
-                            &iv,
-                            &sb_enc[1]);
-  sb_enc->purpose.purpose = htonl (GNUNET_SIGNATURE_PURPOSE_FS_SBLOCK);
-  sb_enc->purpose.size = htonl(slen + mdsize + nidlen
-                              + sizeof(struct SBlock)
-                              - sizeof(struct GNUNET_CRYPTO_RsaSignature));
-  GNUNET_assert (GNUNET_OK == 
-                GNUNET_CRYPTO_rsa_sign (namespace->key,
-                                        &sb_enc->purpose,
-                                        &sb_enc->signature));
-  psc = GNUNET_malloc (sizeof(struct PublishSksContext));
-  psc->uri = sks_uri;
-  psc->cont = cont;
-  psc->cont_cls = cont_cls;
-  if (0 != (options & GNUNET_FS_PUBLISH_OPTION_SIMULATE_ONLY))
-    {
-      GNUNET_free (sb_enc);
-      GNUNET_free (sb);
-      sb_put_cont (psc,
-                  GNUNET_OK,
-                  NULL);
-      return;
-    }
-  psc->dsh = GNUNET_DATASTORE_connect (h->cfg, h->sched);
-  if (NULL == psc->dsh)
-    {
-      GNUNET_free (sb_enc);
-      GNUNET_free (sb);
-      sb_put_cont (psc,
-                  GNUNET_NO,
-                  _("Failed to connect to datastore."));
-      return;
-    }
-  GNUNET_CRYPTO_hash_xor (&sks_uri->data.sks.namespace,
-                         &id,
-                         &query);  
-  GNUNET_DATASTORE_put (psc->dsh,
-                       0,
-                       &sb_enc->identifier,
-                       size,
-                       sb_enc,
-                       GNUNET_DATASTORE_BLOCKTYPE_SBLOCK, 
-                       priority,
-                       anonymity,
-                       expirationTime,
-                       GNUNET_CONSTANTS_SERVICE_TIMEOUT,
-                       &sb_put_cont,
-                       psc);
-
-  GNUNET_free (sb);
-  GNUNET_free (sb_enc);
-}
-
 /* end of fs_publish.c */