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[gnunet] branch master updated (22312907c -> c7d1c6c35)


From: gnunet
Subject: [gnunet] branch master updated (22312907c -> c7d1c6c35)
Date: Tue, 24 Oct 2023 17:40:45 +0200

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

t3sserakt pushed a change to branch master
in repository gnunet.

    from 22312907c dev will usually want these, too
     new 7a3df52b2 TNG: Added missing configuration files for the manual 
testing use case.
     new b5e243908 News: Removed old hello functionality.
     new 233a6be0f News: Added DDLs for handling 
GNUNET_PEERSTORE_StoreHelloContext
     new c7d1c6c35 Merge branch 'master' of ssh://git.gnunet.org/gnunet

The 4 revisions listed above as "new" are entirely new to this
repository and will be described in separate emails.  The revisions
listed as "add" were already present in the repository and have only
been added to this reference.


Summary of changes:
 src/include/Makefile.am                            |    2 -
 src/include/gnunet_dht_service.h                   |    1 -
 src/include/gnunet_hello_lib.h                     |  545 ---------
 src/include/gnunet_hello_uri_lib.h                 |   29 +
 src/include/gnunet_peerstore_service.h             |   57 +
 src/include/gnunet_transport_hello_service.h       |  209 ----
 src/lib/hello/Makefile.am                          |    2 -
 src/lib/hello/address.c                            |  139 ---
 src/lib/hello/gnunet-hello.c                       |    1 -
 src/lib/hello/hello-uri.c                          |   81 ++
 src/lib/hello/hello.c                              | 1249 --------------------
 src/lib/hello/test_friend_hello.c                  |  185 ---
 src/lib/hello/test_hello-ng.c                      |   60 -
 src/lib/hello/test_hello.c                         |  253 ----
 src/service/core/core_api_cmd_connecting_peers.c   |    1 -
 .../test_core_just_run.conf}                       |   11 +-
 .../test_core_just_run_host.conf}                  |    9 +-
 src/service/dht/dht_api.c                          |    1 -
 src/service/dht/test_dht_api.c                     |    1 -
 .../hostlist/gnunet-daemon-hostlist_client.c       |   30 +-
 src/service/peerstore/peerstore_api.c              |   46 -
 src/service/topology/gnunet-daemon-topology.c      |   31 +-
 src/service/transport/gnunet-service-transport.c   |    1 -
 .../transport/transport-testing-communicator.c     |    1 -
 src/service/transport/transport-testing2.c         |   53 -
 src/service/transport/transport-testing2.h         |    1 -
 src/service/transport/transport_api2_core.c        |    1 -
 .../transport_api_cmd_backchannel_check.c          |    1 -
 .../transport/transport_api_cmd_connecting_peers.c |    1 -
 29 files changed, 238 insertions(+), 2764 deletions(-)
 delete mode 100644 src/include/gnunet_hello_lib.h
 delete mode 100644 src/include/gnunet_transport_hello_service.h
 delete mode 100644 src/lib/hello/address.c
 delete mode 100644 src/lib/hello/hello.c
 delete mode 100644 src/lib/hello/test_friend_hello.c
 delete mode 100644 src/lib/hello/test_hello-ng.c
 delete mode 100644 src/lib/hello/test_hello.c
 copy src/service/{transport/test_transport_api2_tng_node.conf => 
core/test_core_just_run.conf} (71%)
 copy src/service/{transport/test_transport_api2_tng_node.conf => 
core/test_core_just_run_host.conf} (87%)

diff --git a/src/include/Makefile.am b/src/include/Makefile.am
index e39f467b9..cf8c49cf1 100644
--- a/src/include/Makefile.am
+++ b/src/include/Makefile.am
@@ -54,7 +54,6 @@ gnunetinclude_HEADERS = \
   gnunet_gnsrecord_json_lib.h \
   gnunet_gnsrecord_plugin.h \
   gnu_name_system_record_types.h \
-  gnunet_hello_lib.h \
   gnunet_hello_uri_lib.h \
   gnunet_helper_lib.h \
   gnunet_identity_service.h \
@@ -121,7 +120,6 @@ gnunetinclude_HEADERS = \
   gnunet_transport_communication_service.h \
   gnunet_transport_monitor_service.h \
   gnunet_transport_core_service.h \
-  gnunet_transport_hello_service.h \
   gnunet_transport_testing_ng_lib.h \
   gnunet_tun_lib.h \
   gnunet_uri_lib.h \
diff --git a/src/include/gnunet_dht_service.h b/src/include/gnunet_dht_service.h
index 3d1264991..a1ea31c25 100644
--- a/src/include/gnunet_dht_service.h
+++ b/src/include/gnunet_dht_service.h
@@ -43,7 +43,6 @@
 
 #include "gnunet_util_lib.h"
 #include "gnunet_block_lib.h"
-#include "gnunet_hello_lib.h"
 
 #ifdef __cplusplus
 extern "C"
diff --git a/src/include/gnunet_hello_lib.h b/src/include/gnunet_hello_lib.h
deleted file mode 100644
index b57f48ac5..000000000
--- a/src/include/gnunet_hello_lib.h
+++ /dev/null
@@ -1,545 +0,0 @@
-/*
-     This file is part of GNUnet.
-     Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2010, 2011 GNUnet e.V.
-
-     GNUnet is free software: you can redistribute it and/or modify it
-     under the terms of the GNU Affero General Public License as published
-     by the Free Software Foundation, either version 3 of the License,
-     or (at your option) any later version.
-
-     GNUnet is distributed in the hope that it will be useful, but
-     WITHOUT ANY WARRANTY; without even the implied warranty of
-     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-     Affero General Public License for more details.
-
-     You should have received a copy of the GNU Affero General Public License
-     along with this program.  If not, see <http://www.gnu.org/licenses/>.
-
-     SPDX-License-Identifier: AGPL3.0-or-later
- */
-
-/**
- * @addtogroup Backbone
- * @{
- *
- * @author Christian Grothoff
- * @file
- * Helper library for handling HELLOs
- *
- * @defgroup hello  Hello library
- * Helper library for handling HELLOs
- *
- * @see [Documentation](https://gnunet.org/gnunets-hostlist-subsystem)
- *
- * @{
- */
-
-#ifndef GNUNET_HELLO_LIB_H
-#define GNUNET_HELLO_LIB_H
-
-#ifdef __cplusplus
-extern "C" {
-#if 0 /* keep Emacsens' auto-indent happy */
-}
-#endif
-#endif
-
-
-#include "gnunet_util_lib.h"
-
-/**
- * Prefix that every HELLO URI must start with.
- */
-#define GNUNET_HELLO_URI_PREFIX "gnunet://hello/"
-
-/**
- * Prefix that every FRIEND HELLO URI must start with.
- */
-#define GNUNET_FRIEND_HELLO_URI_PREFIX "gnunet://friend-hello/"
-
-/**
- * Separator used in HELLO URI
- */
-#define GNUNET_HELLO_URI_SEP '+'
-
-
-/**
- * Additional local information about an address
- *
- * These information are only valid for the local peer and are not serialized
- * when a #GNUNET_HELLO_Message is created
- */
-enum GNUNET_HELLO_AddressInfo
-{
-  /**
-   * No additional information
-   */
-  GNUNET_HELLO_ADDRESS_INFO_NONE = 0,
-
-  /**
-   * This is an inbound address and cannot be used to initiate an outbound
-   * connection to another peer
-   */
-  GNUNET_HELLO_ADDRESS_INFO_INBOUND = 1
-};
-
-
-/**
- * An address for communicating with a peer.  We frequently
- * need this tuple and the components cannot really be
- * separated.  This is NOT the format that would be used
- * on the wire.
- */
-struct GNUNET_HELLO_Address
-{
-  /**
-   * For which peer is this an address?
-   */
-  struct GNUNET_PeerIdentity peer;
-
-  /**
-   * Name of the transport plugin enabling the communication using
-   * this address.
-   */
-  const char *transport_name;
-
-  /**
-   * Binary representation of the address (plugin-specific).
-   */
-  const void *address;
-
-  /**
-   * Number of bytes in @e address.
-   */
-  size_t address_length;
-
-  /**
-   * Extended information about address
-   *
-   * This field contains additional #GNUNET_HELLO_AddressInfo flags e.g.
-   * to indicate an address is inbound and cannot be used to initiate an
-   * outbound connection.
-   *
-   * These information are only valid for the local peer and are not serialized
-   * when a #GNUNET_HELLO_Message is created
-   */
-  enum GNUNET_HELLO_AddressInfo local_info;
-};
-
-
-/**
- * Allocate an address struct.
- *
- * @param peer the peer
- * @param transport_name plugin name
- * @param address binary address
- * @param address_length number of bytes in @a address
- * @param local_info additional local information for the address
- * @return the address struct
- */
-struct GNUNET_HELLO_Address *
-GNUNET_HELLO_address_allocate (const struct GNUNET_PeerIdentity *peer,
-                               const char *transport_name,
-                               const void *address,
-                               size_t address_length,
-                               enum GNUNET_HELLO_AddressInfo local_info);
-
-
-/**
- * Copy an address struct.
- *
- * @param address address to copy
- * @return a copy of the address struct
- */
-struct GNUNET_HELLO_Address *
-GNUNET_HELLO_address_copy (const struct GNUNET_HELLO_Address *address);
-
-
-/**
- * Compare two addresses.  Does NOT compare the peer identity,
- * that is assumed already to match!
- *
- * @param a1 first address
- * @param a2 second address
- * @return 0 if the addresses are equal, -1 if @a a1< @a a2, 1 if @a a1> @a a2.
- */
-int
-GNUNET_HELLO_address_cmp (const struct GNUNET_HELLO_Address *a1,
-                          const struct GNUNET_HELLO_Address *a2);
-
-
-/**
- * Get the size of an address struct.
- *
- * @param address address
- * @return the size
- */
-size_t
-GNUNET_HELLO_address_get_size (const struct GNUNET_HELLO_Address *address);
-
-
-/**
- * Check if an address has a local option set
- *
- * @param address the address to check
- * @param option the respective option to check for
- * @return #GNUNET_YES or #GNUNET_NO
- */
-int
-GNUNET_HELLO_address_check_option (const struct GNUNET_HELLO_Address *address,
-                                   enum GNUNET_HELLO_AddressInfo option);
-
-
-/**
- * Free an address.
- *
- * @param addr address to free
- */
-#define GNUNET_HELLO_address_free(addr) GNUNET_free (addr)
-
-
-GNUNET_NETWORK_STRUCT_BEGIN
-
-/**
- * A HELLO message is used to exchange information about
- * transports with other peers.  This struct is always
- * followed by the actual network addresses which have
- * the format:
- *
- * 1) transport-name (0-terminated)
- * 2) address-length (uint16_t, network byte order; possibly
- *    unaligned!)
- * 3) address expiration (`struct GNUNET_TIME_AbsoluteNBO`); possibly
- *    unaligned!)
- * 4) address (address-length bytes; possibly unaligned!)
- */
-struct GNUNET_HELLO_Message
-{
-  /**
-   * Type will be #GNUNET_MESSAGE_TYPE_HELLO.
-   */
-  struct GNUNET_MessageHeader header;
-
-  /**
-   * Use in F2F mode: Do not gossip this HELLO message
-   */
-  uint32_t friend_only GNUNET_PACKED;
-
-  /**
-   * The public key of the peer.
-   */
-  struct GNUNET_CRYPTO_EddsaPublicKey publicKey;
-};
-GNUNET_NETWORK_STRUCT_END
-
-
-/**
- * Return HELLO type
- *
- * @param h HELLO Message to test
- * @return #GNUNET_YES for friend-only or #GNUNET_NO otherwise
- */
-int
-GNUNET_HELLO_is_friend_only (const struct GNUNET_HELLO_Message *h);
-
-
-/**
- * Copy the given address information into
- * the given buffer using the format of HELLOs.
- *
- * @param address address to add
- * @param expiration expiration for the address
- * @param target where to copy the address
- * @param max maximum number of bytes to copy to @a target
- * @return number of bytes copied, 0 if
- *         the target buffer was not big enough.
- */
-size_t
-GNUNET_HELLO_add_address (const struct GNUNET_HELLO_Address *address,
-                          struct GNUNET_TIME_Absolute expiration,
-                          char *target,
-                          size_t max);
-
-
-/**
- * Callback function used to fill a buffer of max bytes with a list of
- * addresses in the format used by HELLOs.  Should use
- * #GNUNET_HELLO_add_address() as a helper function.
- *
- * @param cls closure
- * @param max maximum number of bytes that can be written to @a buf
- * @param buf where to write the address information
- * @return number of bytes written or 0, #GNUNET_SYSERR to signal the
- *         end of the iteration.
- */
-typedef ssize_t
-(*GNUNET_HELLO_GenerateAddressListCallback) (void *cls,
-                                             size_t max,
-                                             void *buf);
-
-
-/**
- * Construct a HELLO message given the public key,
- * expiration time and an iterator that spews the
- * transport addresses.
- *
- * If friend only is set to #GNUNET_YES we create a FRIEND_HELLO which
- * will not be gossiped to other peers.
- *
- * @param public_key public key to include in the HELLO
- * @param addrgen callback to invoke to get addresses
- * @param addrgen_cls closure for @a addrgen
- * @param friend_only should the returned HELLO be only visible to friends?
- * @return the hello message
- */
-struct GNUNET_HELLO_Message *
-GNUNET_HELLO_create (const struct GNUNET_CRYPTO_EddsaPublicKey *public_key,
-                     GNUNET_HELLO_GenerateAddressListCallback addrgen,
-                     void *addrgen_cls,
-                     int friend_only);
-
-
-/**
- * Return the size of the given HELLO message.
- *
- * @param hello to inspect
- * @return the size, 0 if HELLO is invalid
- */
-uint16_t
-GNUNET_HELLO_size (const struct GNUNET_HELLO_Message *hello);
-
-
-/**
- * Construct a HELLO message by merging the
- * addresses in two existing HELLOs (which
- * must be for the same peer).
- *
- * @param h1 first HELLO message
- * @param h2 the second HELLO message
- * @return the combined hello message
- */
-struct GNUNET_HELLO_Message *
-GNUNET_HELLO_merge (const struct GNUNET_HELLO_Message *h1,
-                    const struct GNUNET_HELLO_Message *h2);
-
-
-/**
- * Test if two HELLO messages contain the same addresses.
- * If they only differ in expiration time, the lowest
- * expiration time larger than 'now' where they differ
- * is returned.
- *
- * @param h1 first HELLO message
- * @param h2 the second HELLO message
- * @param now time to use for deciding which addresses have
- *            expired and should not be considered at all
- * @return absolute time forever if the two HELLOs are
- *         totally identical; smallest timestamp >= now if
- *         they only differ in timestamps;
- *         zero if the some addresses with expirations >= now
- *         do not match at all
- */
-struct GNUNET_TIME_Absolute
-GNUNET_HELLO_equals (const struct GNUNET_HELLO_Message *h1,
-                     const struct GNUNET_HELLO_Message *h2,
-                     struct GNUNET_TIME_Absolute now);
-
-
-/**
- * Iterator callback to go over all addresses.
- *
- * @param cls closure
- * @param address the address
- * @param expiration expiration time
- * @return #GNUNET_OK to keep the address,
- *         #GNUNET_NO to delete it from the HELLO
- *         #GNUNET_SYSERR to stop iterating (but keep current address)
- */
-typedef int (*GNUNET_HELLO_AddressIterator) (
-  void *cls,
-  const struct GNUNET_HELLO_Address *address,
-  struct GNUNET_TIME_Absolute expiration);
-
-
-/**
- * When does the last address in the given HELLO expire?
- *
- * @param msg HELLO to inspect
- * @return time the last address expires, 0 if there are no addresses in the 
HELLO
- */
-struct GNUNET_TIME_Absolute
-GNUNET_HELLO_get_last_expiration (const struct GNUNET_HELLO_Message *msg);
-
-
-/**
- * Iterate over all of the addresses in the HELLO.
- *
- * @param msg HELLO to iterate over; client does not need to
- *        have verified that msg is well-formed (beyond starting
- *        with a GNUNET_MessageHeader of the right type).
- * @param return_modified if a modified copy should be returned,
- *         otherwise NULL will be returned
- * @param it iterator to call on each address
- * @param it_cls closure for @a it
- * @return the modified HELLO or NULL
- */
-struct GNUNET_HELLO_Message *
-GNUNET_HELLO_iterate_addresses (const struct GNUNET_HELLO_Message *msg,
-                                int return_modified,
-                                GNUNET_HELLO_AddressIterator it,
-                                void *it_cls);
-
-
-/**
- * Iterate over addresses in @a new_hello that are NOT already present
- * in @a old_hello. Note that if the address is present in @a old_hello
- * but the expiration time in @a new_hello is more recent, the
- * iterator is also called.
- *
- * @param new_hello a HELLO message
- * @param old_hello a HELLO message
- * @param expiration_limit ignore addresses in old_hello
- *        that expired before the given time stamp
- * @param it iterator to call on each address
- * @param it_cls closure for @a it
- */
-void
-GNUNET_HELLO_iterate_new_addresses (
-  const struct GNUNET_HELLO_Message *new_hello,
-  const struct GNUNET_HELLO_Message *old_hello,
-  struct GNUNET_TIME_Absolute expiration_limit,
-  GNUNET_HELLO_AddressIterator it,
-  void *it_cls);
-
-
-/**
- * Get the peer identity from a HELLO message.
- *
- * @param hello the hello message
- * @param peer where to store the peer's identity
- * @return #GNUNET_SYSERR if the HELLO was malformed
- */
-int
-GNUNET_HELLO_get_id (const struct GNUNET_HELLO_Message *hello,
-                     struct GNUNET_PeerIdentity *peer);
-
-
-/**
- * Get the header from a HELLO message, used so other code
- * can correctly send HELLO messages.
- *
- * @param hello the hello message
- *
- * @return header or NULL if the HELLO was malformed
- */
-struct GNUNET_MessageHeader *
-GNUNET_HELLO_get_header (struct GNUNET_HELLO_Message *hello);
-
-
-/**
- * Helper function to load/access transport plugins.
- * FIXME: pass closure!
- *
- * @param name name of the transport plugin to load
- * @return NULL if a plugin with name @a name is not known/loadable
- */
-typedef struct GNUNET_TRANSPORT_PluginFunctions *(
-*GNUNET_HELLO_TransportPluginsFind) (const char *name);
-
-
-/**
- * Compose a hello URI string from a hello message.
- *
- * @param hello Hello message
- * @param plugins_find Function to find transport plugins by name
- * @return Hello URI string
- */
-char *
-GNUNET_HELLO_compose_uri (const struct GNUNET_HELLO_Message *hello,
-                          GNUNET_HELLO_TransportPluginsFind plugins_find);
-
-
-/**
- * Parse a hello URI string to a hello message.
- *
- * @param uri URI string to parse
- * @param pubkey Pointer to struct where public key is parsed
- * @param hello Pointer to struct where hello message is parsed
- * @param plugins_find Function to find transport plugins by name
- * @return #GNUNET_OK on success, #GNUNET_SYSERR if the URI was invalid, 
#GNUNET_NO on other errors
- */
-int
-GNUNET_HELLO_parse_uri (const char *uri,
-                        struct GNUNET_CRYPTO_EddsaPublicKey *pubkey,
-                        struct GNUNET_HELLO_Message **hello,
-                        GNUNET_HELLO_TransportPluginsFind plugins_find);
-
-
-/* NG API */
-#include "gnunet_util_lib.h"
-
-
-/**
- * Build address record by signing raw information with private key.
- *
- * @param address text address to sign
- * @param nt network type of @a address
- * @param mono_time when was @a address valid
- * @param private_key signing key to use
- * @param[out] result where to write address record (allocated)
- * @param[out] result_size set to size of @a result
- */
-void
-GNUNET_HELLO_sign_address (
-  const char *address,
-  enum GNUNET_NetworkType nt,
-  struct GNUNET_TIME_Absolute mono_time,
-  const struct GNUNET_CRYPTO_EddsaPrivateKey *private_key,
-  void **result,
-  size_t *result_size);
-
-
-/**
- * Check signature and extract address record.
- *
- * @param raw raw signed address
- * @param raw_size size of @a raw
- * @param pid public key to use for signature verification
- * @param[out] nt set to network type
- * @param[out] mono_time when was the address generated
- * @return NULL on error, otherwise the address
- */
-char *
-GNUNET_HELLO_extract_address (const void *raw,
-                              size_t raw_size,
-                              const struct GNUNET_PeerIdentity *pid,
-                              enum GNUNET_NetworkType *nt,
-                              struct GNUNET_TIME_Absolute *mono_time);
-
-
-/**
- * Given an address as a string, extract the prefix that identifies
- * the communicator offering transmissions to that address.
- *
- * @param address a peer's address
- * @return NULL if the address is mal-formed, otherwise the prefix
- */
-char *
-GNUNET_HELLO_address_to_prefix (const char *address);
-
-
-#if 0 /* keep Emacsens' auto-indent happy */
-{
-#endif
-#ifdef __cplusplus
-}
-#endif
-
-/* ifndef GNUNET_HELLO_LIB_H */
-#endif
-
-/** @} */ /* end of group */
-
-/** @} */ /* end of group addition */
-
-/* end of gnunet_hello_lib.h */
diff --git a/src/include/gnunet_hello_uri_lib.h 
b/src/include/gnunet_hello_uri_lib.h
index 1c804f590..7ebf75a9e 100644
--- a/src/include/gnunet_hello_uri_lib.h
+++ b/src/include/gnunet_hello_uri_lib.h
@@ -258,6 +258,35 @@ GNUNET_HELLO_dht_msg_to_block (const struct 
GNUNET_MessageHeader *hello,
                                struct GNUNET_TIME_Absolute *block_expiration);
 
 
+/**
+ * Given an address as a string, extract the prefix that identifies
+ * the communicator offering transmissions to that address.
+ *
+ * @param address a peer's address
+ * @return NULL if the address is mal-formed, otherwise the prefix
+ */
+char *
+GNUNET_HELLO_address_to_prefix (const char *address);
+
+/**
+ * Build address record by signing raw information with private key.
+ *
+ * @param address text address to sign
+ * @param nt network type of @a address
+ * @param mono_time when was @a address valid
+ * @param private_key signing key to use
+ * @param[out] result where to write address record (allocated)
+ * @param[out] result_size set to size of @a result
+ */
+void
+GNUNET_HELLO_sign_address (
+  const char *address,
+  enum GNUNET_NetworkType nt,
+  struct GNUNET_TIME_Absolute mono_time,
+  const struct GNUNET_CRYPTO_EddsaPrivateKey *private_key,
+  void **result,
+  size_t *result_size);
+
 #if 0 /* keep Emacsens' auto-indent happy */
 {
 #endif
diff --git a/src/include/gnunet_peerstore_service.h 
b/src/include/gnunet_peerstore_service.h
index 1cb60cb04..99ba98593 100644
--- a/src/include/gnunet_peerstore_service.h
+++ b/src/include/gnunet_peerstore_service.h
@@ -178,6 +178,63 @@ struct GNUNET_PEERSTORE_Record
 typedef void (*GNUNET_PEERSTORE_Continuation) (void *cls, int success);
 
 
+/**
+ * Context for a add hello uri request.
+ */
+struct GNUNET_PEERSTORE_StoreHelloContext
+{
+  /**
+   * Kept (also) in a DLL.
+   */
+  struct GNUNET_PEERSTORE_StoreHelloContext *prev;
+
+  /**
+   * Kept (also) in a DLL.
+   */
+  struct GNUNET_PEERSTORE_StoreHelloContext *next;
+
+  /**
+   * Peerstore handle.
+   */
+  struct GNUNET_PEERSTORE_Handle *h;
+
+  /**
+   * Function to call with information.
+   */
+  GNUNET_PEERSTORE_Continuation cont;
+
+  /**
+   * Closure for @e callback.
+   */
+  void *cont_cls;
+
+  /**
+   * Map with all store contexts started during adding hello.
+   */
+  struct GNUNET_CONTAINER_MultiPeerMap *store_context_map;
+
+  /**
+   * Active watch to be notified about conflicting hello uri add requests.
+   */
+  struct GNUNET_PEERSTORE_WatchContext *wc;
+
+  /**
+   * Hello uri which was request for storing.
+   */
+  struct GNUNET_MessageHeader *hello;
+
+  /**
+   * The peer id for the hello.
+   */
+  struct GNUNET_PeerIdentity *pid;
+
+  /**
+   * Was this request successful.
+   */
+  int success;
+};
+
+
 /**
  * Function called by PEERSTORE for each matching record.
  *
diff --git a/src/include/gnunet_transport_hello_service.h 
b/src/include/gnunet_transport_hello_service.h
deleted file mode 100644
index 34d3c8e4a..000000000
--- a/src/include/gnunet_transport_hello_service.h
+++ /dev/null
@@ -1,209 +0,0 @@
-/*
-     This file is part of GNUnet.
-     Copyright (C) 2009-2016 GNUnet e.V.
-
-     GNUnet is free software: you can redistribute it and/or modify it
-     under the terms of the GNU Affero General Public License as published
-     by the Free Software Foundation, either version 3 of the License,
-     or (at your option) any later version.
-
-     GNUnet is distributed in the hope that it will be useful, but
-     WITHOUT ANY WARRANTY; without even the implied warranty of
-     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-     Affero General Public License for more details.
-
-     You should have received a copy of the GNU Affero General Public License
-     along with this program.  If not, see <http://www.gnu.org/licenses/>.
-
-     SPDX-License-Identifier: AGPL3.0-or-later
- */
-
-/**
- * @addtogroup Backbone
- * @{
- *
- * @author Christian Grothoff
- *
- * @file
- * obtain information about our current address
- *
- * @deprecated, in TNG applications should query PEERSTORE directly!
- *
- * @defgroup transport  Transport service
- * address information
- *
- * @see [Documentation](https://gnunet.org/transport-service)
- *
- * @{
- */
-#ifndef GNUNET_TRANSPORT_HELLO_SERVICE_H
-#define GNUNET_TRANSPORT_HELLO_SERVICE_H
-
-#ifdef __cplusplus
-extern "C" {
-#if 0 /* keep Emacsens' auto-indent happy */
-}
-#endif
-#endif
-
-
-#include "gnunet_util_lib.h"
-#include "gnunet_ats_service.h"
-
-/**
- * Version number of the transport API.
- */
-#define GNUNET_TRANSPORT_HELLO_VERSION 0x00000000
-
-
-/**
- * Some addresses contain sensitive information or are
- * not suitable for global distribution.  We use address
- * classes to filter addresses by which domain they make
- * sense to be used in.  These are used in a bitmask.
- */
-enum GNUNET_TRANSPORT_AddressClass
-{
-  /**
-   * No address.
-   */
-  GNUNET_TRANSPORT_AC_NONE = 0,
-
-  /**
-   * Addresses that fall into no other category
-   * (i.e. incoming which we cannot use elsewhere).
-   */
-  GNUNET_TRANSPORT_AC_OTHER = 1,
-
-  /**
-   * Addresses that are global and are insensitive
-   * (i.e. IPv4).
-   */
-  GNUNET_TRANSPORT_AC_GLOBAL = 2,
-
-  /**
-   * Addresses that are global and are sensitive
-   * (i.e. IPv6 with our MAC).
-   */
-  GNUNET_TRANSPORT_AC_GLOBAL_PRIVATE = 4,
-
-  /**
-   * Addresses useful in the local wired network,
-   * i.e. a MAC.  Sensitive, but obvious to people nearby.
-   * Useful for broadcasts.
-   */
-  GNUNET_TRANSPORT_AC_LAN = 8,
-
-  /**
-   * Addresses useful in the local wireless network,
-   * i.e. a MAC.  Sensitive, but obvious to people nearby.
-   * Useful for broadcasts.
-   */
-  GNUNET_TRANSPORT_AC_WLAN = 16,
-
-  /**
-   * Addresses useful in the local bluetooth network.  Sensitive, but
-   * obvious to people nearby.  Useful for broadcasts.
-   */
-  GNUNET_TRANSPORT_AC_BT = 32,
-
-  /**
-   * Bitmask for "any" address.
-   */
-  GNUNET_TRANSPORT_AC_ANY = 65535
-};
-
-
-/**
- * Function called whenever there is an update to the
- * HELLO of this peer.
- *
- * @param cls closure
- * @param hello our updated HELLO
- */
-typedef void (*GNUNET_TRANSPORT_HelloUpdateCallback) (
-  void *cls,
-  const struct GNUNET_MessageHeader *hello);
-
-
-/**
- * Handle to cancel a #GNUNET_TRANSPORT_hello_get() operation.
- */
-struct GNUNET_TRANSPORT_HelloGetHandle;
-
-
-/**
- * Obtain updates on changes to the HELLO message for this peer. The callback
- * given in this function is never called synchronously.
- *
- * @param cfg configuration to use
- * @param ac which network type should the addresses from the HELLO belong to?
- * @param rec function to call with the HELLO
- * @param rec_cls closure for @a rec
- * @return handle to cancel the operation
- */
-struct GNUNET_TRANSPORT_HelloGetHandle *
-GNUNET_TRANSPORT_hello_get (const struct GNUNET_CONFIGURATION_Handle *cfg,
-                            enum GNUNET_TRANSPORT_AddressClass ac,
-                            GNUNET_TRANSPORT_HelloUpdateCallback rec,
-                            void *rec_cls) __attribute__((deprecated));
-
-
-/**
- * Stop receiving updates about changes to our HELLO message.
- *
- * @param ghh handle to cancel
- */
-void
-GNUNET_TRANSPORT_hello_get_cancel (struct
-                                   GNUNET_TRANSPORT_HelloGetHandle *ghh)
-__attribute__((deprecated));
-
-
-/**
- * Function with addresses found in a HELLO.
- *
- * @param cls closure
- * @param peer identity of the peer
- * @param address the address (UTF-8, 0-terminated)
- * @param nt network type of the address
- * @param expiration when does this address expire?
- */
-typedef void (*GNUNET_TRANSPORT_AddressCallback)(
-  void *cls,
-  const struct GNUNET_PeerIdentity *peer,
-  const char *address,
-  enum GNUNET_NetworkType nt,
-  struct GNUNET_TIME_Absolute expiration) __attribute__((deprecated));
-
-
-/**
- * Parse a HELLO message that we have received into its
- * constituent addresses.
- *
- * @param hello message to parse
- * @param cb function to call on each address found
- * @param cb_cls closure for @a cb
- * @return #GNUNET_OK if hello was well-formed, #GNUNET_SYSERR if not
- */
-int
-GNUNET_TRANSPORT_hello_parse (const struct GNUNET_MessageHeader *hello,
-                              GNUNET_TRANSPORT_AddressCallback cb,
-                              void *cb_cls) __attribute__((deprecated));
-
-
-#if 0 /* keep Emacsens' auto-indent happy */
-{
-#endif
-#ifdef __cplusplus
-}
-#endif
-
-/* ifndef GNUNET_TRANSPORT_HELLO_SERVICE_H */
-#endif
-
-/** @} */ /* end of group */
-
-/** @} */ /* end of group addition */
-
-/* end of gnunet_transport_hello_service.h */
diff --git a/src/lib/hello/Makefile.am b/src/lib/hello/Makefile.am
index 4435dba42..cbc193a0a 100644
--- a/src/lib/hello/Makefile.am
+++ b/src/lib/hello/Makefile.am
@@ -9,8 +9,6 @@ endif
 lib_LTLIBRARIES = libgnunethello.la
 
 libgnunethello_la_SOURCES = \
-  address.c \
-  hello-ng.c \
   hello-uri.c
 libgnunethello_la_LIBADD = \
  $(top_builddir)/src/lib/util/libgnunetutil.la $(XLIB) \
diff --git a/src/lib/hello/address.c b/src/lib/hello/address.c
deleted file mode 100644
index 6a1b68029..000000000
--- a/src/lib/hello/address.c
+++ /dev/null
@@ -1,139 +0,0 @@
-/*
-     This file is part of GNUnet.
-     Copyright (C) 2009 GNUnet e.V.
-
-     GNUnet is free software: you can redistribute it and/or modify it
-     under the terms of the GNU Affero General Public License as published
-     by the Free Software Foundation, either version 3 of the License,
-     or (at your option) any later version.
-
-     GNUnet is distributed in the hope that it will be useful, but
-     WITHOUT ANY WARRANTY; without even the implied warranty of
-     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-     Affero General Public License for more details.
-
-     You should have received a copy of the GNU Affero General Public License
-     along with this program.  If not, see <http://www.gnu.org/licenses/>.
-
-     SPDX-License-Identifier: AGPL3.0-or-later
- */
-
-/**
- * @file hello/address.c
- * @brief helper functions for handling addresses
- * @author Christian Grothoff
- */
-#include "platform.h"
-#include "gnunet_hello_lib.h"
-#include "gnunet_util_lib.h"
-
-
-/**
- * Check if an address has a local option set
- *
- * @param address the address to check
- * @param option the respective option to check for
- * @return #GNUNET_YES or #GNUNET_NO
- */
-int
-GNUNET_HELLO_address_check_option (const struct GNUNET_HELLO_Address *address,
-                                   enum GNUNET_HELLO_AddressInfo option)
-{
-  if (option == (address->local_info & option))
-    return GNUNET_YES;
-  return GNUNET_NO;
-}
-
-
-/**
- * Get the size of an address struct.
- *
- * @param address address
- * @return the size
- */
-size_t
-GNUNET_HELLO_address_get_size (const struct GNUNET_HELLO_Address *address)
-{
-  return sizeof(struct GNUNET_HELLO_Address) + address->address_length
-         + strlen (address->transport_name) + 1;
-}
-
-
-struct GNUNET_HELLO_Address *
-GNUNET_HELLO_address_allocate (const struct GNUNET_PeerIdentity *peer,
-                               const char *transport_name,
-                               const void *address,
-                               size_t address_length,
-                               enum GNUNET_HELLO_AddressInfo local_info)
-{
-  struct GNUNET_HELLO_Address *addr;
-  size_t slen;
-  char *end;
-
-  slen = strlen (transport_name) + 1;
-  addr = GNUNET_malloc (sizeof(struct GNUNET_HELLO_Address)
-                        + address_length + slen);
-  addr->peer = *peer;
-  addr->address = &addr[1];
-  addr->address_length = address_length;
-  addr->local_info = local_info;
-  end = (char *) &addr[1];
-  addr->transport_name = &end[address_length];
-  GNUNET_memcpy (end,
-                 address,
-                 address_length);
-  GNUNET_memcpy (&end[address_length],
-                 transport_name,
-                 slen);
-  return addr;
-}
-
-
-/**
- * Copy an address struct.
- *
- * @param address address to copy
- * @return a copy of the address struct
- */
-struct GNUNET_HELLO_Address *
-GNUNET_HELLO_address_copy (const struct GNUNET_HELLO_Address *address)
-{
-  if (NULL == address)
-    return NULL;
-  return GNUNET_HELLO_address_allocate (&address->peer,
-                                        address->transport_name,
-                                        address->address,
-                                        address->address_length,
-                                        address->local_info);
-}
-
-
-int
-GNUNET_HELLO_address_cmp (const struct GNUNET_HELLO_Address *a1,
-                          const struct GNUNET_HELLO_Address *a2)
-{
-  int ret;
-
-  if ((NULL == a1) &&
-      (NULL == a2))
-    return 0;
-  if (NULL == a1)
-    return 1;
-  if (NULL == a2)
-    return -1;
-  ret = strcmp (a1->transport_name, a2->transport_name);
-  if (0 != ret)
-    return ret;
-  if (a1->local_info != a2->local_info)
-    return (((int) a1->local_info) < ((int) a2->local_info)) ? -1 : 1;
-  if (a1->address_length < a2->address_length)
-    return -1;
-  if (a1->address_length > a2->address_length)
-    return 1;
-  return memcmp (a1->address,
-                 a2->address,
-                 a1->address_length);
-}
-
-
-/* end of address.c */
diff --git a/src/lib/hello/gnunet-hello.c b/src/lib/hello/gnunet-hello.c
index 7f43e77b9..aaa4b5005 100644
--- a/src/lib/hello/gnunet-hello.c
+++ b/src/lib/hello/gnunet-hello.c
@@ -24,7 +24,6 @@
  */
 #include "platform.h"
 #include "gnunet_protocols.h"
-#include "gnunet_hello_lib.h"
 #include "gnunet_hello_uri_lib.h"
 #include "gnunet_transport_plugin.h"
 
diff --git a/src/lib/hello/hello-uri.c b/src/lib/hello/hello-uri.c
index 25f8948fe..4d0cb4ee0 100644
--- a/src/lib/hello/hello-uri.c
+++ b/src/lib/hello/hello-uri.c
@@ -43,6 +43,27 @@
 
 GNUNET_NETWORK_STRUCT_BEGIN
 
+/**
+ * Binary block we sign when we sign an address.
+ */
+struct SignedAddress
+{
+  /**
+   * Purpose must be #GNUNET_SIGNATURE_PURPOSE_TRANSPORT_ADDRESS
+   */
+  struct GNUNET_CRYPTO_EccSignaturePurpose purpose;
+
+  /**
+   * When was the address generated.
+   */
+  struct GNUNET_TIME_AbsoluteNBO mono_time;
+
+  /**
+   * Hash of the address.
+   */
+  struct GNUNET_HashCode addr_hash GNUNET_PACKED;
+};
+
 /**
  * Message signed as part of a HELLO block/URL.
  */
@@ -962,3 +983,63 @@ GNUNET_HELLO_dht_msg_to_block (const struct 
GNUNET_MessageHeader *hello,
   }
   return ret;
 }
+
+
+/**
+ * Given an address as a string, extract the prefix that identifies
+ * the communicator offering transmissions to that address.
+ *
+ * @param address a peer's address
+ * @return NULL if the address is mal-formed, otherwise the prefix
+ */
+char *
+GNUNET_HELLO_address_to_prefix (const char *address)
+{
+  const char *dash;
+
+  dash = strchr (address, '-');
+  if (NULL == dash)
+    return NULL;
+  return GNUNET_strndup (address, dash - address);
+}
+
+
+/**
+ * Build address record by signing raw information with private key.
+ *
+ * @param address text address at @a communicator to sign
+ * @param nt network type of @a address
+ * @param mono_time monotonic time at which @a address was valid
+ * @param private_key signing key to use
+ * @param[out] result where to write address record (allocated)
+ * @param[out] result_size set to size of @a result
+ */
+void
+GNUNET_HELLO_sign_address (
+  const char *address,
+  enum GNUNET_NetworkType nt,
+  struct GNUNET_TIME_Absolute mono_time,
+  const struct GNUNET_CRYPTO_EddsaPrivateKey *private_key,
+  void **result,
+  size_t *result_size)
+{
+  struct SignedAddress sa;
+  struct GNUNET_CRYPTO_EddsaSignature sig;
+  char *sig_str;
+
+  sa.purpose.purpose = htonl (GNUNET_SIGNATURE_PURPOSE_TRANSPORT_ADDRESS);
+  sa.purpose.size = htonl (sizeof(sa));
+  sa.mono_time = GNUNET_TIME_absolute_hton (mono_time);
+  GNUNET_CRYPTO_hash (address, strlen (address), &sa.addr_hash);
+  GNUNET_CRYPTO_eddsa_sign (private_key, &sa, &sig);
+  sig_str = NULL;
+  (void) GNUNET_STRINGS_base64_encode (&sig, sizeof(sig), &sig_str);
+  *result_size =
+    1 + GNUNET_asprintf ((char **) result,
+                         "%s;%llu;%u;%s",
+                         sig_str,
+                         (unsigned long long) mono_time.abs_value_us,
+                         (unsigned int) nt,
+                         address);
+  GNUNET_free (sig_str);
+}
diff --git a/src/lib/hello/hello.c b/src/lib/hello/hello.c
deleted file mode 100644
index 45d27c5d4..000000000
--- a/src/lib/hello/hello.c
+++ /dev/null
@@ -1,1249 +0,0 @@
-/*
-     This file is part of GNUnet.
-     Copyright (C) 2009, 2015 GNUnet e.V.
-
-     GNUnet is free software: you can redistribute it and/or modify it
-     under the terms of the GNU Affero General Public License as published
-     by the Free Software Foundation, either version 3 of the License,
-     or (at your option) any later version.
-
-     GNUnet is distributed in the hope that it will be useful, but
-     WITHOUT ANY WARRANTY; without even the implied warranty of
-     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-     Affero General Public License for more details.
-
-     You should have received a copy of the GNU Affero General Public License
-     along with this program.  If not, see <http://www.gnu.org/licenses/>.
-
-     SPDX-License-Identifier: AGPL3.0-or-later
- */
-
-/**
- * @file hello/hello.c
- * @brief helper library for handling HELLOs
- * @author Christian Grothoff
- * @author Matthias Wachs
- */
-#include "platform.h"
-#include "gnunet_hello_lib.h"
-#include "gnunet_protocols.h"
-#include "gnunet_util_lib.h"
-#include "gnunet_transport_plugin.h"
-
-/**
- * Context used for building our own URI.
- */
-struct GNUNET_HELLO_ComposeUriContext
-{
-  /**
-   * Final URI.
-   */
-  char *uri;
-
-  /**
-   * Function for finding transport plugins by name.
-   */
-  GNUNET_HELLO_TransportPluginsFind plugins_find;
-};
-
-
-/**
- * Context for #add_address_to_hello().
- */
-struct GNUNET_HELLO_ParseUriContext
-{
-  /**
-   * Position in the URI with the next address to parse.
-   */
-  const char *pos;
-
-  /**
-   * Set to #GNUNET_SYSERR to indicate parse errors.
-   */
-  int ret;
-
-  /**
-   * Counter
-   */
-  unsigned int counter_total;
-
-  /**
-   * Counter skipped addresses
-   */
-  unsigned int counter_added;
-
-  /**
-   * Function for finding transport plugins by name.
-   */
-  GNUNET_HELLO_TransportPluginsFind plugins_find;
-};
-
-
-/**
- * Return HELLO type
- *
- * @param h HELLO Message to test
- * @return #GNUNET_YES for friend-only or #GNUNET_NO otherwise
- */
-int
-GNUNET_HELLO_is_friend_only (const struct GNUNET_HELLO_Message *h)
-{
-  if (GNUNET_YES == ntohl (h->friend_only))
-    return GNUNET_YES;
-  return GNUNET_NO;
-}
-
-
-/**
- * Copy the given address information into
- * the given buffer using the format of HELLOs.
- *
- * @param address the address
- * @param expiration expiration for the @a address
- * @param target where to copy the @a address
- * @param max maximum number of bytes to copy to target
- * @return number of bytes copied, 0 if
- *         the target buffer was not big enough.
- */
-size_t
-GNUNET_HELLO_add_address (const struct GNUNET_HELLO_Address *address,
-                          struct GNUNET_TIME_Absolute expiration,
-                          char *target,
-                          size_t max)
-{
-  uint16_t alen;
-  size_t slen;
-  struct GNUNET_TIME_AbsoluteNBO exp;
-
-  slen = strlen (address->transport_name) + 1;
-  if (slen + sizeof(uint16_t) + sizeof(struct GNUNET_TIME_AbsoluteNBO)
-      + address->address_length > max)
-    return 0;
-  exp = GNUNET_TIME_absolute_hton (expiration);
-  alen = htons ((uint16_t) address->address_length);
-  GNUNET_memcpy (target, address->transport_name, slen);
-  GNUNET_memcpy (&target[slen], &alen, sizeof(uint16_t));
-  slen += sizeof(uint16_t);
-  GNUNET_memcpy (&target[slen], &exp, sizeof(struct GNUNET_TIME_AbsoluteNBO));
-  slen += sizeof(struct GNUNET_TIME_AbsoluteNBO);
-  GNUNET_memcpy (&target[slen], address->address, address->address_length);
-  slen += address->address_length;
-  return slen;
-}
-
-
-/**
- * Get the size of an address entry in a HELLO message.
- *
- * @param buf pointer to the start of the address entry
- * @param max maximum size of the entry (end of @a buf)
- * @param ralen set to the address length
- * @return size of the entry, or 0 if @a max is not large enough
- */
-static size_t
-get_hello_address_size (const char *buf,
-                        size_t max,
-                        uint16_t *ralen)
-{
-  const char *pos;
-  uint16_t alen;
-  size_t left;
-  size_t slen;
-
-  left = max;
-  pos = buf;
-  slen = 1;
-  while ((left > 0) && ('\0' != *pos))
-  {
-    left--;
-    pos++;
-    slen++;
-  }
-  if (0 == left)
-  {
-    /* 0-termination not found */
-    GNUNET_break_op (0);
-    return 0;
-  }
-  pos++;
-  if (left < sizeof(uint16_t) + sizeof(struct GNUNET_TIME_AbsoluteNBO))
-  {
-    /* not enough space for addrlen */
-    GNUNET_break_op (0);
-    return 0;
-  }
-  GNUNET_memcpy (&alen, pos, sizeof(uint16_t));
-  alen = ntohs (alen);
-  *ralen = alen;
-  slen += alen + sizeof(uint16_t) + sizeof(struct GNUNET_TIME_AbsoluteNBO);
-  if (max < slen)
-  {
-    /* not enough space for addr */
-    GNUNET_break_op (0);
-    return 0;
-  }
-  return slen;
-}
-
-
-/**
- * Construct a HELLO message given the public key,
- * expiration time and an iterator that spews the
- * transport addresses.
- *
- * If friend only is set to #GNUNET_YES we create a FRIEND_HELLO which
- * will not be gossiped to other peers.
- *
- * @param public_key public key to include in the HELLO
- * @param addrgen callback to invoke to get addresses
- * @param addrgen_cls closure for @a addrgen
- * @param friend_only should the returned HELLO be only visible to friends?
- * @return the hello message
- */
-struct GNUNET_HELLO_Message *
-GNUNET_HELLO_create (const struct GNUNET_CRYPTO_EddsaPublicKey *public_key,
-                     GNUNET_HELLO_GenerateAddressListCallback addrgen,
-                     void *addrgen_cls,
-                     int friend_only)
-{
-  char buffer[GNUNET_MAX_MESSAGE_SIZE - 1 - 256
-              - sizeof(struct GNUNET_HELLO_Message)];
-  size_t max;
-  size_t used;
-  size_t ret;
-  struct GNUNET_HELLO_Message *hello;
-
-  GNUNET_assert (NULL != public_key);
-  GNUNET_assert ((GNUNET_YES == friend_only) ||
-                 (GNUNET_NO == friend_only));
-  max = sizeof(buffer);
-  used = 0;
-  if (NULL != addrgen)
-  {
-    while (GNUNET_SYSERR != (ret = addrgen (addrgen_cls,
-                                            max,
-                                            &buffer[used])))
-    {
-      max -= ret;
-      used += ret;
-    }
-  }
-  hello = GNUNET_malloc (sizeof(struct GNUNET_HELLO_Message) + used);
-  hello->header.type = htons (GNUNET_MESSAGE_TYPE_HELLO);
-  hello->header.size = htons (sizeof(struct GNUNET_HELLO_Message) + used);
-  hello->friend_only = htonl (friend_only);
-  hello->publicKey = *public_key;
-  GNUNET_memcpy (&hello[1],
-                 buffer,
-                 used);
-  return hello;
-}
-
-
-/**
- * Iterate over all of the addresses in the HELLO.
- *
- * @param msg HELLO to iterate over
- * @param return_modified if a modified copy should be returned,
- *         otherwise NULL will be returned
- * @param it iterator to call on each address
- * @param it_cls closure for @a it
- * @return modified HELLO message
- */
-struct GNUNET_HELLO_Message *
-GNUNET_HELLO_iterate_addresses (const struct GNUNET_HELLO_Message *msg,
-                                int return_modified,
-                                GNUNET_HELLO_AddressIterator it,
-                                void *it_cls)
-{
-  struct GNUNET_HELLO_Address address;
-  uint16_t msize;
-  struct GNUNET_HELLO_Message *ret;
-  const char *inptr;
-  size_t insize;
-  size_t esize;
-  size_t wpos;
-  char *woff;
-  uint16_t alen;
-  struct GNUNET_TIME_AbsoluteNBO expire;
-  int iret;
-
-  msize = GNUNET_HELLO_size (msg);
-  if ((msize < sizeof(struct GNUNET_HELLO_Message)) ||
-      (ntohs (msg->header.type) != GNUNET_MESSAGE_TYPE_HELLO))
-  {
-    GNUNET_break_op (0);
-    return NULL;
-  }
-  ret = NULL;
-  if (return_modified)
-  {
-    ret = GNUNET_malloc (msize);
-    GNUNET_memcpy (ret,
-                   msg,
-                   msize);
-  }
-  inptr = (const char *) &msg[1];
-  insize = msize - sizeof(struct GNUNET_HELLO_Message);
-  wpos = 0;
-  woff = (NULL != ret) ? (char *) &ret[1] : NULL;
-  address.peer.public_key = msg->publicKey;
-  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-              "HELLO has %u bytes of address data\n",
-              (unsigned int) insize);
-
-  while (insize > 0)
-  {
-    esize = get_hello_address_size (inptr,
-                                    insize,
-                                    &alen);
-    if (0 == esize)
-    {
-      GNUNET_break (0);
-      GNUNET_free (ret);
-      return NULL;
-    }
-    /* need GNUNET_memcpy() due to possibility of misalignment */
-    GNUNET_memcpy (&expire,
-                   &inptr[esize - alen - sizeof(struct
-                                                GNUNET_TIME_AbsoluteNBO)],
-                   sizeof(struct GNUNET_TIME_AbsoluteNBO));
-    address.address = &inptr[esize - alen];
-    address.address_length = alen;
-    address.transport_name = inptr;
-    address.local_info = GNUNET_HELLO_ADDRESS_INFO_NONE;
-    iret = it (it_cls,
-               &address,
-               GNUNET_TIME_absolute_ntoh (expire));
-    if (GNUNET_SYSERR == iret)
-      break;
-    if ((GNUNET_OK == iret) &&
-        (NULL != ret))
-    {
-      /* copy address over */
-      GNUNET_memcpy (woff,
-                     inptr,
-                     esize);
-      woff += esize;
-      wpos += esize;
-    }
-    insize -= esize;
-    inptr += esize;
-  }
-  if (NULL != ret)
-    ret->header.size = ntohs (sizeof(struct GNUNET_HELLO_Message) + wpos);
-  return ret;
-}
-
-
-/**
- * Closure for #get_match_exp().
- */
-struct ExpireContext
-{
-  /**
-   * Address we are looking for.
-   */
-  const struct GNUNET_HELLO_Address *address;
-
-  /**
-   * Set to #GNUNET_YES if we found the @e address.
-   */
-  int found;
-
-  /**
-   * Set to the expiration of the match if @e found is #GNUNET_YES.
-   */
-  struct GNUNET_TIME_Absolute expiration;
-};
-
-
-/**
- * Store the expiration time of an address that matches the template.
- *
- * @param cls the `struct ExpireContext`
- * @param address address to match against the template
- * @param expiration expiration time of @a address, to store in @a cls
- * @return #GNUNET_SYSERR if we found a matching address, #GNUNET_OK otherwise
- */
-static int
-get_match_exp (void *cls,
-               const struct GNUNET_HELLO_Address *address,
-               struct GNUNET_TIME_Absolute expiration)
-{
-  struct ExpireContext *ec = cls;
-
-  if (0 != GNUNET_HELLO_address_cmp (address,
-                                     ec->address))
-    return GNUNET_OK;
-  ec->found = GNUNET_YES;
-  ec->expiration = expiration;
-  return GNUNET_SYSERR;       /* done here */
-}
-
-
-/**
- * Context for a #GNUNET_HELLO_Merge operation.
- */
-struct MergeContext
-{
-  /**
-   * First HELLO we are merging.
-   */
-  const struct GNUNET_HELLO_Message *h1;
-
-  /**
-   * Second HELLO we are merging.
-   */
-  const struct GNUNET_HELLO_Message *h2;
-
-  /**
-   * Either @e h1 or @e h2, used when copying
-   * to compare against (so we only copy the
-   * most recent entry).
-   */
-  const struct GNUNET_HELLO_Message *other;
-
-  /**
-   * Buffer where we copy to.
-   */
-  char *buf;
-
-  /**
-   * Number of bytes allocated in @e buf
-   */
-  size_t max;
-
-  /**
-   * Current (write) offset in @e buf.
-   */
-  size_t ret;
-
-  /**
-   * Should we copy addresses with an identical value
-   * and expiration time in @e other, or do we only
-   * copy addresses with strictly later expiration times?
-   */
-  int take_equal;
-};
-
-
-/**
- * Append the address @a address to the buffer from
- * the merge context IF it is more recent than equivalent
- * addresses in `other`.
- *
- * @param cls the `struct MergeContext`
- * @param address the HELLO address we might copy
- * @param expiration expiration time for @a address
- * @return always #GNUNET_OK
- */
-static int
-copy_latest (void *cls,
-             const struct GNUNET_HELLO_Address *address,
-             struct GNUNET_TIME_Absolute expiration)
-{
-  struct MergeContext *mc = cls;
-  struct ExpireContext ec;
-
-  ec.address = address;
-  ec.found = GNUNET_NO;
-  /* check if address exists in other */
-  GNUNET_HELLO_iterate_addresses (mc->other,
-                                  GNUNET_NO,
-                                  &get_match_exp,
-                                  &ec);
-  if ((GNUNET_NO == ec.found) ||
-      (ec.expiration.abs_value_us < expiration.abs_value_us) ||
-      ((ec.expiration.abs_value_us == expiration.abs_value_us) &&
-       (GNUNET_YES == mc->take_equal)))
-  {
-    /* copy address to buffer */
-    mc->ret +=
-      GNUNET_HELLO_add_address (address,
-                                expiration,
-                                &mc->buf[mc->ret],
-                                mc->max - mc->ret);
-  }
-  return GNUNET_OK;
-}
-
-
-/**
- * Function called to build the HELLO during
- * #GNUNET_HELLO_merge() by merging addresses from
- * two original HELLOs.
- *
- * @param cls the `struct MergeContext`
- * @param max number of bytes we can write at most in @a buf
- * @param buf where to copy the addresses
- * @return #GNUNET_SYSERR to end iteration, otherwise number of bytes written 
to @a buf
- */
-static ssize_t
-merge_addr (void *cls,
-            size_t max,
-            void *buf)
-{
-  struct MergeContext *mc = cls;
-
-  if (NULL == mc->h1)
-    return GNUNET_SYSERR; /* Stop iteration */
-  mc->ret = 0;
-  mc->max = max;
-  mc->buf = buf;
-  mc->take_equal = GNUNET_NO;
-  mc->other = mc->h2;
-  /* copy addresses from h1, if strictly larger expiration than h2 */
-  GNUNET_HELLO_iterate_addresses (mc->h1,
-                                  GNUNET_NO,
-                                  &copy_latest,
-                                  mc);
-  mc->take_equal = GNUNET_YES;
-  mc->other = mc->h1;
-  /* copy addresses from h2, if larger or equal expiration than h1 */
-  GNUNET_HELLO_iterate_addresses (mc->h2,
-                                  GNUNET_NO,
-                                  &copy_latest,
-                                  mc);
-  /* set marker to stop iteration */
-  mc->h1 = NULL;
-  return mc->ret;
-}
-
-
-struct GNUNET_HELLO_Message *
-GNUNET_HELLO_merge (const struct GNUNET_HELLO_Message *h1,
-                    const struct GNUNET_HELLO_Message *h2)
-{
-  struct MergeContext mc = { h1, h2, NULL, NULL, 0, 0, 0 };
-  int friend_only;
-
-  if (h1->friend_only != h2->friend_only)
-    friend_only = GNUNET_YES; /* One of the HELLOs is friend only */
-  else
-    friend_only = ntohl (h1->friend_only); /* Both HELLO's have the same type 
*/
-
-  return GNUNET_HELLO_create (&h1->publicKey,
-                              &merge_addr,
-                              &mc,
-                              friend_only);
-}
-
-
-/**
- * Context used in #GNUNET_HELLO_iterate_new_addresses() to
- * figure out which addresses are in fact 'new'.
- */
-struct DeltaContext
-{
-  /**
-   * We should ignore addresses that expire before this time.
-   */
-  struct GNUNET_TIME_Absolute expiration_limit;
-
-  /**
-   * Function to call on addresses that are indeed new.
-   */
-  GNUNET_HELLO_AddressIterator it;
-
-  /**
-   * Closure for @e it.
-   */
-  void *it_cls;
-
-  /**
-   * HELLO with known addresses, addresses in this HELLO
-   * we must always ignore.
-   */
-  const struct GNUNET_HELLO_Message *old_hello;
-};
-
-
-/**
- * Check if the given address is 'new', and if so, call
- * the iterator.  Compares the existing address against
- * addresses in the context's `old_hello` and calls the
- * iterator on those that are new (and not expired).
- *
- * @param cls the `struct DeltaContext`
- * @param address an address to check whether it is new
- * @param expiration expiration time for @a address
- * @return #GNUNET_YES if the address is ignored, otherwise
- *         whatever the iterator returned.
- */
-static int
-delta_match (void *cls,
-             const struct GNUNET_HELLO_Address *address,
-             struct GNUNET_TIME_Absolute expiration)
-{
-  struct DeltaContext *dc = cls;
-  int ret;
-  struct ExpireContext ec;
-
-  ec.address = address;
-  ec.found = GNUNET_NO;
-  GNUNET_HELLO_iterate_addresses (dc->old_hello,
-                                  GNUNET_NO,
-                                  &get_match_exp,
-                                  &ec);
-  if ((GNUNET_YES == ec.found) &&
-      ((ec.expiration.abs_value_us > expiration.abs_value_us) ||
-       (ec.expiration.abs_value_us >= dc->expiration_limit.abs_value_us)))
-    return GNUNET_YES;          /* skip: found and boring */
-  ret = dc->it (dc->it_cls,
-                address,
-                expiration);
-  return ret;
-}
-
-
-void
-GNUNET_HELLO_iterate_new_addresses (const struct
-                                    GNUNET_HELLO_Message *new_hello,
-                                    const struct
-                                    GNUNET_HELLO_Message *old_hello,
-                                    struct GNUNET_TIME_Absolute
-                                    expiration_limit,
-                                    GNUNET_HELLO_AddressIterator it,
-                                    void *it_cls)
-{
-  struct DeltaContext dc;
-
-  dc.expiration_limit = expiration_limit;
-  dc.it = it;
-  dc.it_cls = it_cls;
-  dc.old_hello = old_hello;
-  GNUNET_assert (NULL ==
-                 GNUNET_HELLO_iterate_addresses (new_hello,
-                                                 GNUNET_NO,
-                                                 &delta_match,
-                                                 &dc));
-}
-
-
-/**
- * Return the size of the given HELLO message.
- * @param hello to inspect
- * @return the size, 0 if HELLO is invalid
- */
-uint16_t
-GNUNET_HELLO_size (const struct GNUNET_HELLO_Message *hello)
-{
-  uint16_t ret = ntohs (hello->header.size);
-
-  if ((ret < sizeof(struct GNUNET_HELLO_Message)) ||
-      (ntohs (hello->header.type) != GNUNET_MESSAGE_TYPE_HELLO))
-    return 0;
-  return ret;
-}
-
-
-/**
- * Get the peer identity from a HELLO message.
- *
- * @param hello the hello message
- * @param peer where to store the peer's identity
- * @return #GNUNET_SYSERR if the HELLO was malformed
- */
-int
-GNUNET_HELLO_get_id (const struct GNUNET_HELLO_Message *hello,
-                     struct GNUNET_PeerIdentity *peer)
-{
-  uint16_t ret = ntohs (hello->header.size);
-
-  if ((ret < sizeof(struct GNUNET_HELLO_Message)) ||
-      (ntohs (hello->header.type) != GNUNET_MESSAGE_TYPE_HELLO))
-    return GNUNET_SYSERR;
-  peer->public_key = hello->publicKey;
-  return GNUNET_OK;
-}
-
-
-/**
- * Get the header from a HELLO message, used so other code
- * can correctly send HELLO messages.
- *
- * @param hello the hello message
- *
- * @return header or NULL if the HELLO was malformed
- */
-struct GNUNET_MessageHeader *
-GNUNET_HELLO_get_header (struct GNUNET_HELLO_Message *hello)
-{
-  uint16_t ret = ntohs (hello->header.size);
-
-  if ((ret < sizeof(struct GNUNET_HELLO_Message)) ||
-      (ntohs (hello->header.type) != GNUNET_MESSAGE_TYPE_HELLO))
-    return NULL;
-
-  return &hello->header;
-}
-
-
-/**
- * Context used for comparing HELLOs in #GNUNET_HELLO_equals().
- */
-struct EqualsContext
-{
-  /**
-   * Addresses that expired before this date are ignored for
-   * the comparison.
-   */
-  struct GNUNET_TIME_Absolute expiration_limit;
-
-  /**
-   * Earliest expiration time for which we found a match
-   * with a difference in expiration times.
-   * At this time, the two HELLOs may start to diverge.
-   */
-  struct GNUNET_TIME_Absolute result;
-
-  /**
-   * HELLO message to compare against. (First set to the second
-   * HELLO, then set to the first HELLO.)
-   */
-  const struct GNUNET_HELLO_Message *ref;
-
-  /**
-   * Address we are currently looking for.
-   */
-  const struct GNUNET_HELLO_Address *address;
-
-  /**
-   * Expiration time of @e address.
-   */
-  struct GNUNET_TIME_Absolute expiration;
-
-  /**
-   * Did we find the address we were looking for?
-   */
-  int found;
-};
-
-
-/**
- * Check if the given address matches the address we are currently
- * looking for. If so, sets `found` to #GNUNET_YES and, if the
- * expiration times for the two addresses differ, updates `result` to
- * the minimum of our @a expiration and the existing value
- *
- * @param cls the `struct EqualsContext`
- * @param address address from the reference HELLO
- * @param expiration expiration time for @a address
- * @return #GNUNET_YES if the address is expired or does not match
- *         #GNUNET_SYSERR if the address does match.
- */
-static int
-find_other_matching (void *cls,
-                     const struct GNUNET_HELLO_Address *address,
-                     struct GNUNET_TIME_Absolute expiration)
-{
-  struct EqualsContext *ec = cls;
-
-  if (expiration.abs_value_us < ec->expiration_limit.abs_value_us)
-    return GNUNET_YES;
-  if (0 == GNUNET_HELLO_address_cmp (address, ec->address))
-  {
-    ec->found = GNUNET_YES;
-    if (expiration.abs_value_us < ec->expiration.abs_value_us)
-      ec->result = GNUNET_TIME_absolute_min (expiration,
-                                             ec->result);
-    return GNUNET_SYSERR;
-  }
-  return GNUNET_YES;
-}
-
-
-/**
- * Helper function for #GNUNET_HELLO_equals().  Checks
- * if the given @a address exists also in the other HELLO;
- * if not, the result time is set to zero and the iteration
- * is aborted.
- *
- * @param cls the `struct EqualsContext`
- * @param address address to locate
- * @param expiration expiration time of the current address
- * @return #GNUNET_OK if the address exists or is expired,
- *         #GNUNET_SYSERR if it was not found
- */
-static int
-find_matching (void *cls,
-               const struct GNUNET_HELLO_Address *address,
-               struct GNUNET_TIME_Absolute expiration)
-{
-  struct EqualsContext *ec = cls;
-
-  if (expiration.abs_value_us < ec->expiration_limit.abs_value_us)
-    return GNUNET_OK; /* expired, we don't care */
-  ec->address = address;
-  ec->expiration = expiration;
-  ec->found = GNUNET_NO;
-  GNUNET_HELLO_iterate_addresses (ec->ref,
-                                  GNUNET_NO,
-                                  &find_other_matching,
-                                  ec);
-  if (GNUNET_NO == ec->found)
-  {
-    /* not found, we differ *now* */
-    ec->result = GNUNET_TIME_UNIT_ZERO_ABS;
-    return GNUNET_SYSERR;
-  }
-  return GNUNET_OK;
-}
-
-
-/**
- * Test if two HELLO messages contain the same addresses.
- * If they only differ in expiration time, the lowest
- * expiration time larger than @a now where they differ
- * is returned.
- *
- * @param h1 first HELLO message
- * @param h2 the second HELLO message
- * @param now time to use for deciding which addresses have
- *            expired and should not be considered at all
- * @return absolute time forever if the two HELLOs are
- *         totally identical; smallest timestamp >= @a now if
- *         they only differ in timestamps;
- *         zero if the some addresses with expirations >= @a now
- *         do not match at all
- */
-struct GNUNET_TIME_Absolute
-GNUNET_HELLO_equals (const struct GNUNET_HELLO_Message *h1,
-                     const struct GNUNET_HELLO_Message *h2,
-                     struct GNUNET_TIME_Absolute now)
-{
-  struct EqualsContext ec;
-
-  if (h1->header.type != h2->header.type)
-    return GNUNET_TIME_UNIT_ZERO_ABS;
-  if (0 !=
-      GNUNET_memcmp (&h1->publicKey,
-                     &h2->publicKey))
-    return GNUNET_TIME_UNIT_ZERO_ABS;
-  ec.expiration_limit = now;
-  ec.result = GNUNET_TIME_UNIT_FOREVER_ABS;
-  ec.ref = h2;
-  GNUNET_HELLO_iterate_addresses (h1,
-                                  GNUNET_NO,
-                                  &find_matching,
-                                  &ec);
-  if (ec.result.abs_value_us == GNUNET_TIME_UNIT_ZERO.rel_value_us)
-    return ec.result;
-  ec.ref = h1;
-  GNUNET_HELLO_iterate_addresses (h2,
-                                  GNUNET_NO,
-                                  &find_matching,
-                                  &ec);
-  return ec.result;
-}
-
-
-/**
- * Iterator to find the time when the last address will expire.
- * Updates the maximum value stored in @a cls.
- *
- * @param cls where to store the max, a `struct GNUNET_TIME_Absolute`
- * @param address an address (ignored)
- * @param expiration expiration time for @a address
- * @return #GNUNET_OK (always)
- */
-static int
-find_max_expire (void *cls,
-                 const struct GNUNET_HELLO_Address *address,
-                 struct GNUNET_TIME_Absolute expiration)
-{
-  struct GNUNET_TIME_Absolute *max = cls;
-
-  *max = GNUNET_TIME_absolute_max (*max, expiration);
-  return GNUNET_OK;
-}
-
-
-/**
- * When does the last address in the given HELLO expire?
- *
- * @param msg HELLO to inspect
- * @return time the last address expires, 0 if there are no addresses in the 
HELLO
- */
-struct GNUNET_TIME_Absolute
-GNUNET_HELLO_get_last_expiration (const struct GNUNET_HELLO_Message *msg)
-{
-  struct GNUNET_TIME_Absolute ret;
-
-  ret = GNUNET_TIME_UNIT_ZERO_ABS;
-  GNUNET_HELLO_iterate_addresses (msg,
-                                  GNUNET_NO,
-                                  &find_max_expire,
-                                  &ret);
-  return ret;
-}
-
-
-/**
- * GNUnet URIs are of the general form "gnunet://MODULE/IDENTIFIER".
- * The specific structure of "IDENTIFIER" depends on the module and
- * maybe differentiated into additional subcategories if applicable.
- * This module only deals with hello identifiers (MODULE = "hello").
- * <p>
- *
- * The concrete URI format is:
- *
- * "gnunet://hello/PEER[+YYYYMMDDHHMMSS+<TYPE>+<ADDRESS>]...".
- * These URIs can be used to add a peer record to peerinfo service.
- * PEER is the string representation of peer's public key.
- * YYYYMMDDHHMMSS is the expiration date.
- * TYPE is a transport type.
- * ADDRESS is the address, its format depends upon the transport type.
- * The concrete transport types and corresponding address formats are:
- *
- * <ul><li>
- *
- * <TCP|UDP>!IPADDRESS
- * IPVDDRESS is either IPV4 .-delimited address in form of 
XXX.XXX.XXX.XXX:PPPPP
- * or IPV6 :-delimited address  with '[' and ']' (according to RFC2732):
- * [XXXX:XXXX:XXXX:XXXX:XXXX:XXXX:XXXX:XXXX]:PPPPP
- * PPPPP is the port number. May be 0.
- *
- * </li><li>
- *
- * [add SMTP, HTTP and other addresses here]
- *
- * </li></ul>
- *
- * The encoding for hexadecimal values is defined in the crypto_hash.c
- * module in the gnunetutil library and discussed there.
- *
- * Examples:
- *
- * 
gnunet://hello/V8XXK9GAN5ZJFRFQP8MQX3D83BZTSBQVHKWWD0JPE63Z821906EG+20120302010059+TCP+192.168.0.1:2086+TCP+64.23.8.174:0
- * 
gnunet://hello/V8XXK9GAN5ZJFRFQP8MQX3D83BZTSBQVHKWWD0JPE63Z821906EG+20120302010059+TCP+[2001:db8:85a3:8d3:1319:8a2e:370:7348]:2086
- *
- * <p>
- */
-
-
-/**
- * Function that is called on each address of this peer.
- * Expands the corresponding URI string.
- *
- * @param cls the `struct GNUNET_HELLO_ComposeUriContext`
- * @param address address to add
- * @param expiration expiration time for the address
- * @return #GNUNET_OK (continue iteration).
- */
-static int
-add_address_to_uri (void *cls,
-                    const struct GNUNET_HELLO_Address *address,
-                    struct GNUNET_TIME_Absolute expiration)
-{
-  struct GNUNET_HELLO_ComposeUriContext *ctx = cls;
-  struct GNUNET_TRANSPORT_PluginFunctions *papi;
-  const char *addr;
-  char *ret;
-  char *addr_dup;
-  char *pos;
-  char tbuf[16] = "";
-  char *client_str = "_client";
-  struct tm *t;
-  time_t seconds;
-
-  papi = ctx->plugins_find (address->transport_name);
-  if (NULL == papi)
-  {
-    /* Not an error - we might just not have the right plugin. */
-    return GNUNET_OK;
-  }
-  if (NULL == papi->address_to_string)
-  {
-    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-                "URI conversion not implemented for plugin `%s'\n",
-                address->transport_name);
-    return GNUNET_OK;
-  }
-  addr = papi->address_to_string (papi->cls,
-                                  address->address,
-                                  address->address_length);
-  if ((NULL == addr) ||
-      (0 == strlen (addr)))
-    return GNUNET_OK;
-
-  addr_dup = GNUNET_strdup (addr);
-  if (NULL != (pos = strstr (addr_dup, "_server")))
-    GNUNET_memcpy (pos,
-                   client_str,
-                   strlen (client_str)); /* Replace all server addresses with 
client addresses */
-
-  seconds = expiration.abs_value_us / 1000LL / 1000LL;
-  t = gmtime (&seconds);
-
-  GNUNET_asprintf (&ret,
-                   "%s%c%s%c%s%c%s",
-                   ctx->uri,
-                   GNUNET_HELLO_URI_SEP,
-                   strftime (tbuf,
-                             sizeof(tbuf),
-                             "%Y%m%d%H%M%S",
-                             t) ? tbuf : "0",
-                   GNUNET_HELLO_URI_SEP,
-                   address->transport_name,
-                   GNUNET_HELLO_URI_SEP,
-                   addr_dup);
-  GNUNET_free (addr_dup);
-  GNUNET_free (ctx->uri);
-  ctx->uri = ret;
-  return GNUNET_OK;
-}
-
-
-/**
- * Compose a hello URI string from a hello message.
- *
- * @param hello Hello message
- * @param plugins_find Function to find transport plugins by name
- * @return Hello URI string
- */
-char *
-GNUNET_HELLO_compose_uri (const struct GNUNET_HELLO_Message *hello,
-                          GNUNET_HELLO_TransportPluginsFind plugins_find)
-{
-  struct GNUNET_HELLO_ComposeUriContext ctx;
-  char *pkey;
-
-  ctx.plugins_find = plugins_find;
-  pkey = GNUNET_CRYPTO_eddsa_public_key_to_string (&hello->publicKey);
-  GNUNET_asprintf (&ctx.uri,
-                   "%s%s",
-                   (GNUNET_YES == GNUNET_HELLO_is_friend_only (hello))
-                   ? GNUNET_FRIEND_HELLO_URI_PREFIX
-                   : GNUNET_HELLO_URI_PREFIX,
-                   pkey);
-  GNUNET_free (pkey);
-  GNUNET_HELLO_iterate_addresses (hello,
-                                  GNUNET_NO,
-                                  &add_address_to_uri,
-                                  &ctx);
-  return ctx.uri;
-}
-
-
-/* ************************* Parse HELLO URI ********************* */
-
-
-/**
- * We're building a HELLO.  Parse the next address from the
- * parsing context and append it.
- *
- * @param cls the `struct GNUNET_HELLO_ParseUriContext`
- * @param max number of bytes available for HELLO construction
- * @param buffer where to copy the next address (in binary format)
- * @return number of bytes added to buffer, #GNUNET_SYSERR on error
- */
-static ssize_t
-add_address_to_hello (void *cls,
-                      size_t max,
-                      void *buffer)
-{
-  struct GNUNET_HELLO_ParseUriContext *ctx = cls;
-  const char *tname;
-  const char *address;
-  char *uri_address;
-  const char *end;
-  char *plugin_name;
-  struct tm expiration_time;
-  time_t expiration_seconds;
-  struct GNUNET_TIME_Absolute expire;
-  struct GNUNET_TRANSPORT_PluginFunctions *papi;
-  void *addr;
-  size_t addr_len;
-  struct GNUNET_HELLO_Address haddr;
-  ssize_t ret;
-
-  if (NULL == ctx->pos)
-    return GNUNET_SYSERR;
-  if (GNUNET_HELLO_URI_SEP != ctx->pos[0])
-  {
-    ctx->ret = GNUNET_SYSERR;
-    GNUNET_break (0);
-    return GNUNET_SYSERR;
-  }
-  ctx->pos++;
-
-  if (('0' == ctx->pos[0]) &&
-      (GNUNET_HELLO_URI_SEP == ctx->pos[1]))
-  {
-    expire = GNUNET_TIME_UNIT_FOREVER_ABS;
-    tname = ctx->pos + 1;
-  }
-  else
-  {
-    memset (&expiration_time, 0, sizeof(expiration_time));
-    tname = strptime (ctx->pos,
-                      "%Y%m%d%H%M%S",
-                      &expiration_time);
-    if (NULL == tname)
-    {
-      ctx->ret = GNUNET_SYSERR;
-      GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                  _ (
-                    "Failed to parse HELLO message: missing expiration 
time\n"));
-      GNUNET_break (0);
-      return GNUNET_SYSERR;
-    }
-
-    expiration_seconds = mktime (&expiration_time);
-    if (expiration_seconds == (time_t) -1)
-    {
-      GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                  _ (
-                    "Failed to parse HELLO message: invalid expiration 
time\n"));
-      ctx->ret = GNUNET_SYSERR;
-      GNUNET_break (0);
-      return GNUNET_SYSERR;
-    }
-    expire.abs_value_us = expiration_seconds * 1000LL * 1000LL;
-  }
-  if (GNUNET_HELLO_URI_SEP != tname[0])
-  {
-    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                _ ("Failed to parse HELLO message: malformed\n"));
-    ctx->ret = GNUNET_SYSERR;
-    GNUNET_break (0);
-    return GNUNET_SYSERR;
-  }
-  tname++;
-  address = strchr (tname,
-                    (int) GNUNET_HELLO_URI_SEP);
-  if (NULL == address)
-  {
-    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                _ (
-                  "Failed to parse HELLO message: missing transport 
plugin\n"));
-    ctx->ret = GNUNET_SYSERR;
-    GNUNET_break (0);
-    return GNUNET_SYSERR;
-  }
-  address++;
-  end = strchr (address, (int) GNUNET_HELLO_URI_SEP);
-  ctx->pos = end;
-  ctx->counter_total++;
-  plugin_name = GNUNET_strndup (tname, address - (tname + 1));
-  papi = ctx->plugins_find (plugin_name);
-  if (NULL == papi)
-  {
-    /* Not an error - we might just not have the right plugin.
-     * Skip this part, advance to the next one and recurse.
-     * But only if this is not the end of string.
-     */
-    GNUNET_log (GNUNET_ERROR_TYPE_INFO,
-                _ ("Plugin `%s' not found, skipping address\n"),
-                plugin_name);
-    GNUNET_free (plugin_name);
-    return 0;
-  }
-  if (NULL == papi->string_to_address)
-  {
-    GNUNET_log (GNUNET_ERROR_TYPE_INFO,
-                _ ("Plugin `%s' does not support URIs yet\n"),
-                plugin_name);
-    GNUNET_free (plugin_name);
-    GNUNET_break (0);
-    return 0;
-  }
-  uri_address = GNUNET_strndup (address, end - address);
-  if (GNUNET_OK !=
-      papi->string_to_address (papi->cls,
-                               uri_address,
-                               strlen (uri_address) + 1,
-                               &addr,
-                               &addr_len))
-  {
-    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                _ ("Failed to parse `%s' as an address for plugin `%s'\n"),
-                uri_address,
-                plugin_name);
-    GNUNET_free (plugin_name);
-    GNUNET_free (uri_address);
-    return 0;
-  }
-  GNUNET_free (uri_address);
-  /* address.peer is unset - not used by add_address() */
-  haddr.address_length = addr_len;
-  haddr.address = addr;
-  haddr.transport_name = plugin_name;
-  ret = GNUNET_HELLO_add_address (&haddr,
-                                  expire,
-                                  buffer,
-                                  max);
-  ctx->counter_added++;
-  GNUNET_free (addr);
-  GNUNET_free (plugin_name);
-  return ret;
-}
-
-
-/**
- * Parse a hello URI string to a hello message.
- *
- * @param uri URI string to parse
- * @param pubkey Pointer to struct where public key is parsed
- * @param hello Pointer to struct where hello message is parsed
- * @param plugins_find Function to find transport plugins by name
- * @return #GNUNET_OK on success, #GNUNET_SYSERR if the URI was invalid, 
#GNUNET_NO on other errors
- */
-int
-GNUNET_HELLO_parse_uri (const char *uri,
-                        struct GNUNET_CRYPTO_EddsaPublicKey *pubkey,
-                        struct GNUNET_HELLO_Message **hello,
-                        GNUNET_HELLO_TransportPluginsFind plugins_find)
-{
-  const char *pks;
-  const char *exc;
-  int friend_only;
-  struct GNUNET_HELLO_ParseUriContext ctx;
-
-  if (0 == strncmp (uri,
-                    GNUNET_HELLO_URI_PREFIX,
-                    strlen (GNUNET_HELLO_URI_PREFIX)))
-  {
-    pks = &uri[strlen (GNUNET_HELLO_URI_PREFIX)];
-    friend_only = GNUNET_NO;
-  }
-  else if (0 == strncmp (uri,
-                         GNUNET_FRIEND_HELLO_URI_PREFIX,
-                         strlen (GNUNET_FRIEND_HELLO_URI_PREFIX)))
-  {
-    pks = &uri[strlen (GNUNET_FRIEND_HELLO_URI_PREFIX)];
-    friend_only = GNUNET_YES;
-  }
-  else
-    return GNUNET_SYSERR;
-  exc = strchr (pks, GNUNET_HELLO_URI_SEP);
-
-  if (GNUNET_OK !=
-      GNUNET_STRINGS_string_to_data (pks,
-                                     (NULL == exc) ? strlen (pks) : (exc - 
pks),
-                                     (unsigned char *) pubkey,
-                                     sizeof(*pubkey)))
-    return GNUNET_SYSERR;
-
-  ctx.pos = exc;
-  ctx.ret = GNUNET_OK;
-  ctx.counter_total = 0;
-  ctx.counter_added = 0;
-  ctx.plugins_find = plugins_find;
-  *hello = GNUNET_HELLO_create (pubkey,
-                                &add_address_to_hello,
-                                &ctx,
-                                friend_only);
-
-  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-              "HELLO URI contained %u addresses, added %u addresses\n",
-              ctx.counter_total,
-              ctx.counter_added);
-
-  return ctx.ret;
-}
-
-
-/* end of hello.c */
diff --git a/src/lib/hello/test_friend_hello.c 
b/src/lib/hello/test_friend_hello.c
deleted file mode 100644
index 1b092c0b8..000000000
--- a/src/lib/hello/test_friend_hello.c
+++ /dev/null
@@ -1,185 +0,0 @@
-/*
-     This file is part of GNUnet
-     Copyright (C) 2009 GNUnet e.V.
-
-     GNUnet is free software: you can redistribute it and/or modify it
-     under the terms of the GNU Affero General Public License as published
-     by the Free Software Foundation, either version 3 of the License,
-     or (at your option) any later version.
-
-     GNUnet is distributed in the hope that it will be useful, but
-     WITHOUT ANY WARRANTY; without even the implied warranty of
-     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-     Affero General Public License for more details.
-
-     You should have received a copy of the GNU Affero General Public License
-     along with this program.  If not, see <http://www.gnu.org/licenses/>.
-
-     SPDX-License-Identifier: AGPL3.0-or-later
- */
-/**
- * @file hello/test_friend_hello.c
- * @brief test for hello.c
- * @author Christian Grothoff
- */
-#include "platform.h"
-#include "gnunet_hello_lib.h"
-
-
-static ssize_t
-my_addr_gen (void *cls,
-             size_t max,
-             void *buf)
-{
-  unsigned int *i = cls;
-  size_t ret;
-  struct GNUNET_HELLO_Address address;
-
-  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-              "DEBUG: my_addr_gen called with i = %d\n", *i);
-  if (0 == *i)
-    return GNUNET_SYSERR; /* Stop iteration */
-  memset (&address.peer, 0, sizeof(struct GNUNET_PeerIdentity));
-  address.address = "address_information";
-  address.transport_name = "test";
-  address.address_length = *i;
-  ret =
-    GNUNET_HELLO_add_address (&address, GNUNET_TIME_absolute_get (), buf,
-                              max);
-  (*i)--;
-  return ret;
-}
-
-
-static int
-check_addr (void *cls,
-            const struct GNUNET_HELLO_Address *address,
-            struct GNUNET_TIME_Absolute expiration)
-{
-  unsigned int *i = cls;
-
-  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-              "DEBUG: check_addr called with i = %d and addrlen = %u\n",
-              *i, (unsigned int) address->address_length);
-  GNUNET_assert (address->address_length > 0);
-  GNUNET_assert (*i & (1 << (address->address_length - 1)));
-  *i -= (1 << (address->address_length - 1));
-  GNUNET_assert (0 ==
-                 strncmp ("address_information", address->address,
-                          address->address_length));
-  GNUNET_assert (0 == strcmp ("test", address->transport_name));
-  return GNUNET_OK;
-}
-
-
-static int
-remove_some (void *cls,
-             const struct GNUNET_HELLO_Address *address,
-             struct GNUNET_TIME_Absolute expiration)
-{
-  unsigned int *i = cls;
-
-  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-              "DEBUG: remove_some called with i = %d and addrlen = %u\n",
-              *i, (unsigned int) address->address_length);
-  GNUNET_assert (address->address_length > 0);
-  if (*i & (1 << (address->address_length - 1)))
-  {
-    *i -= (1 << (address->address_length - 1));
-    return GNUNET_NO;
-  }
-  return GNUNET_OK;
-}
-
-
-int
-main (int argc, char *argv[])
-{
-  struct GNUNET_HELLO_Message *msg1;
-  struct GNUNET_HELLO_Message *msg2;
-  struct GNUNET_HELLO_Message *msg3;
-  struct GNUNET_CRYPTO_EddsaPublicKey publicKey;
-  struct GNUNET_TIME_Absolute startup_time;
-  unsigned int i;
-
-  GNUNET_log_setup ("test-hello", "DEBUG", NULL);
-  startup_time = GNUNET_TIME_absolute_get ();
-  memset (&publicKey, 42, sizeof(publicKey));
-  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-              "Testing HELLO creation (without addresses)...\n");
-  i = 0;
-  msg1 = GNUNET_HELLO_create (&publicKey, &my_addr_gen, &i, GNUNET_YES);
-  GNUNET_assert (msg1 != NULL);
-  GNUNET_assert (0 < GNUNET_HELLO_size (msg1));
-
-  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-              "Testing address iteration (empty set)...\n");
-  GNUNET_assert (NULL ==
-                 GNUNET_HELLO_iterate_addresses (msg1, GNUNET_NO, &check_addr,
-                                                 &i));
-  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-              "Testing HELLO creation (with one address)...\n");
-  i = 1;
-  msg2 = GNUNET_HELLO_create (&publicKey, &my_addr_gen, &i, GNUNET_YES);
-  GNUNET_assert (msg2 != NULL);
-  GNUNET_assert (GNUNET_HELLO_size (msg1) < GNUNET_HELLO_size (msg2));
-
-  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-              "Testing address iteration (one address)...\n");
-  i = 1;
-  GNUNET_assert (NULL ==
-                 GNUNET_HELLO_iterate_addresses (msg2, GNUNET_NO, &check_addr,
-                                                 &i));
-  GNUNET_assert (i == 0);
-  GNUNET_free (msg1);
-
-  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-              "Testing HELLO creation (with two addresses)...\n");
-  i = 2;
-  msg3 = GNUNET_HELLO_create (&publicKey, &my_addr_gen, &i, GNUNET_YES);
-  GNUNET_assert (msg3 != NULL);
-  GNUNET_assert (GNUNET_HELLO_size (msg2) < GNUNET_HELLO_size (msg3));
-
-  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-              "Testing address iteration (two addresses)...\n");
-  i = 3;
-  GNUNET_assert (NULL ==
-                 GNUNET_HELLO_iterate_addresses (msg3, GNUNET_NO, &check_addr,
-                                                 &i));
-  GNUNET_assert (i == 0);
-
-  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-              "Testing HELLO merge...\n");
-  msg1 = GNUNET_HELLO_merge (msg2, msg3);
-  GNUNET_assert (GNUNET_HELLO_size (msg1) == GNUNET_HELLO_size (msg3));
-
-  i = 3;
-  GNUNET_assert (NULL ==
-                 GNUNET_HELLO_iterate_addresses (msg1, GNUNET_NO, &check_addr,
-                                                 &i));
-  GNUNET_assert (i == 0);
-  GNUNET_free (msg1);
-
-  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-              "Testing address iteration to copy HELLO...\n");
-  i = 2;
-  msg1 = GNUNET_HELLO_iterate_addresses (msg3, GNUNET_YES, &remove_some, &i);
-  GNUNET_assert (msg1 != NULL);
-  GNUNET_assert (i == 0);
-  i = 1;
-  GNUNET_assert (NULL ==
-                 GNUNET_HELLO_iterate_addresses (msg1, GNUNET_NO, &check_addr,
-                                                 &i));
-  GNUNET_assert (i == 0);
-  GNUNET_free (msg1);
-
-  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-              "Testing delta address iteration...\n");
-  i = 2;
-  GNUNET_HELLO_iterate_new_addresses (msg3, msg2, startup_time, &check_addr,
-                                      &i);
-  GNUNET_assert (i == 0);
-  GNUNET_free (msg2);
-  GNUNET_free (msg3);
-  return 0;                     /* testcase passed */
-}
diff --git a/src/lib/hello/test_hello-ng.c b/src/lib/hello/test_hello-ng.c
deleted file mode 100644
index ef84e2425..000000000
--- a/src/lib/hello/test_hello-ng.c
+++ /dev/null
@@ -1,60 +0,0 @@
-/*
-     This file is part of GNUnet.
-     Copyright (C) 2022 GNUnet e.V.
-
-     GNUnet is free software: you can redistribute it and/or modify it
-     under the terms of the GNU Affero General Public License as published
-     by the Free Software Foundation, either version 3 of the License,
-     or (at your option) any later version.
-
-     GNUnet is distributed in the hope that it will be useful, but
-     WITHOUT ANY WARRANTY; without even the implied warranty of
-     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-     Affero General Public License for more details.
-
-     You should have received a copy of the GNU Affero General Public License
-     along with this program.  If not, see <http://www.gnu.org/licenses/>.
-
-     SPDX-License-Identifier: AGPL3.0-or-later
- */
-#include "platform.h"
-#include "gnunet_util_lib.h"
-#include "gnunet_nt_lib.h"
-#include "gnunet_hello_lib.h"
-
-int
-main (int argc,
-      char *argv[])
-{
-  struct GNUNET_CRYPTO_EddsaPublicKey pubKey;
-  struct GNUNET_CRYPTO_EddsaPrivateKey privKey;
-  struct GNUNET_PeerIdentity pid;
-  struct GNUNET_TIME_Absolute t = GNUNET_TIME_absolute_get ();
-  char *res;
-  char *address;
-  size_t res_len;
-  enum GNUNET_NetworkType nt;
-
-  GNUNET_CRYPTO_eddsa_key_create (&privKey);
-  GNUNET_CRYPTO_eddsa_key_get_public (&privKey,
-                                      &pubKey);
-  pid.public_key = pubKey;
-  GNUNET_HELLO_sign_address ("127.0.0.1:8080",
-                             GNUNET_NT_LAN,
-                             t,
-                             &privKey,
-                             (void**) &res,
-                             &res_len);
-  GNUNET_log (GNUNET_ERROR_TYPE_MESSAGE,
-              "%s\n", res);
-  GNUNET_assert (NULL !=
-                 (address =
-                  GNUNET_HELLO_extract_address ((void**) res,
-                                               res_len,
-                                               &pid,
-                                               &nt,
-                                                &t)));
-  GNUNET_free (address);
-  GNUNET_free (res);
-  return 0;
-}
diff --git a/src/lib/hello/test_hello.c b/src/lib/hello/test_hello.c
deleted file mode 100644
index 8631d2af3..000000000
--- a/src/lib/hello/test_hello.c
+++ /dev/null
@@ -1,253 +0,0 @@
-/*
-     This file is part of GNUnet
-     Copyright (C) 2009, 2015 GNUnet e.V.
-
-     GNUnet is free software: you can redistribute it and/or modify it
-     under the terms of the GNU Affero General Public License as published
-     by the Free Software Foundation, either version 3 of the License,
-     or (at your option) any later version.
-
-     GNUnet is distributed in the hope that it will be useful, but
-     WITHOUT ANY WARRANTY; without even the implied warranty of
-     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-     Affero General Public License for more details.
-
-     You should have received a copy of the GNU Affero General Public License
-     along with this program.  If not, see <http://www.gnu.org/licenses/>.
-
-     SPDX-License-Identifier: AGPL3.0-or-later
- */
-/**
- * @file hello/test_hello.c
- * @brief test for hello.c
- * @author Christian Grothoff
- */
-#include "platform.h"
-#include "gnunet_hello_lib.h"
-
-
-/**
- *
- *
- * @param cls
- * @param max
- * @param buf
- * @return
- */
-static ssize_t
-my_addr_gen (void *cls,
-             size_t max,
-             void *buf)
-{
-  unsigned int *i = cls;
-  size_t ret;
-  struct GNUNET_HELLO_Address address;
-
-  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-              "DEBUG: my_addr_gen called with i = %d\n",
-              *i);
-  if (0 == *i)
-    return GNUNET_SYSERR;
-  memset (&address.peer, 0, sizeof(struct GNUNET_PeerIdentity));
-  address.address = "address_information";
-  address.transport_name = "test";
-  address.address_length = *i;
-  ret = GNUNET_HELLO_add_address (&address,
-                                  GNUNET_TIME_absolute_get (),
-                                  buf,
-                                  max);
-  (*i)--;
-  return ret;
-}
-
-
-/**
- *
- *
- * @param cls
- * @param address
- * @param expiration
- * @return
- */
-static int
-check_addr (void *cls,
-            const struct GNUNET_HELLO_Address *address,
-            struct GNUNET_TIME_Absolute expiration)
-{
-  unsigned int *i = cls;
-
-  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-              "DEBUG: check_addr called with i = %d and addrlen = %u\n",
-              *i,
-              (unsigned int) address->address_length);
-  GNUNET_assert (address->address_length > 0);
-  GNUNET_assert (*i & (1 << (address->address_length - 1)));
-  *i -= (1 << (address->address_length - 1));
-  GNUNET_assert (0 ==
-                 strncmp ("address_information",
-                          address->address,
-                          address->address_length));
-  GNUNET_assert (0 == strcmp ("test",
-                              address->transport_name));
-  return GNUNET_OK;
-}
-
-
-/**
- *
- *
- * @param cls
- * @param address
- * @param expiration
- * @return
- */
-static int
-remove_some (void *cls,
-             const struct GNUNET_HELLO_Address *address,
-             struct GNUNET_TIME_Absolute expiration)
-{
-  unsigned int *i = cls;
-
-  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-              "DEBUG: remove_some called with i = %d and addrlen = %u\n",
-              *i,
-              (unsigned int) address->address_length);
-  GNUNET_assert (address->address_length > 0);
-  if (*i & (1 << (address->address_length - 1)))
-  {
-    *i -= (1 << (address->address_length - 1));
-    return GNUNET_NO;
-  }
-  return GNUNET_OK;
-}
-
-
-int
-main (int argc,
-      char *argv[])
-{
-  struct GNUNET_HELLO_Message *msg1;
-  struct GNUNET_HELLO_Message *msg2;
-  struct GNUNET_HELLO_Message *msg3;
-  struct GNUNET_CRYPTO_EddsaPublicKey publicKey;
-  struct GNUNET_PeerIdentity pid;
-  struct GNUNET_TIME_Absolute startup_time;
-  unsigned int i;
-
-  GNUNET_log_setup ("test-hello",
-                    "DEBUG",
-                    NULL);
-  startup_time = GNUNET_TIME_absolute_get ();
-  memset (&publicKey, 42, sizeof(publicKey));
-  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-              "Testing HELLO creation (without addresses)...\n");
-  i = 0;
-  msg1 = GNUNET_HELLO_create (&publicKey,
-                              &my_addr_gen,
-                              &i,
-                              GNUNET_NO);
-  GNUNET_assert (msg1 != NULL);
-  GNUNET_assert (0 < GNUNET_HELLO_size (msg1));
-
-  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-              "Testing address iteration (empty set)...\n");
-  GNUNET_assert (NULL ==
-                 GNUNET_HELLO_iterate_addresses (msg1,
-                                                 GNUNET_NO,
-                                                 &check_addr,
-                                                 &i));
-  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-              "Testing HELLO creation (with one address)...\n");
-  i = 1;
-  msg2 = GNUNET_HELLO_create (&publicKey,
-                              &my_addr_gen,
-                              &i,
-                              GNUNET_NO);
-  GNUNET_assert (msg2 != NULL);
-  GNUNET_assert (GNUNET_HELLO_size (msg1) < GNUNET_HELLO_size (msg2));
-
-  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-              "Testing address iteration (one address)...\n");
-  i = 1;
-  GNUNET_assert (NULL ==
-                 GNUNET_HELLO_iterate_addresses (msg2,
-                                                 GNUNET_NO,
-                                                 &check_addr,
-                                                 &i));
-  GNUNET_assert (i == 0);
-
-  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-              "Testing get_key from HELLO...\n");
-  GNUNET_assert (GNUNET_OK == GNUNET_HELLO_get_id (msg2, &pid));
-  GNUNET_assert (0 == GNUNET_memcmp (&publicKey,
-                                     &pid.public_key));
-  GNUNET_free (msg1);
-
-  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-              "Testing HELLO creation (with two addresses)...\n");
-  i = 2;
-  msg3 = GNUNET_HELLO_create (&publicKey,
-                              &my_addr_gen,
-                              &i,
-                              GNUNET_NO);
-  GNUNET_assert (msg3 != NULL);
-  GNUNET_assert (GNUNET_HELLO_size (msg2) < GNUNET_HELLO_size (msg3));
-
-  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-              "Testing address iteration (two addresses)...\n");
-  i = 3;
-  GNUNET_assert (NULL ==
-                 GNUNET_HELLO_iterate_addresses (msg3,
-                                                 GNUNET_NO,
-                                                 &check_addr,
-                                                 &i));
-  GNUNET_assert (i == 0);
-
-  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-              "Testing HELLO merge...\n");
-  msg1 = GNUNET_HELLO_merge (msg2, msg3);
-  GNUNET_assert (GNUNET_HELLO_size (msg1) == GNUNET_HELLO_size (msg3));
-
-  i = 3;
-  GNUNET_assert (NULL ==
-                 GNUNET_HELLO_iterate_addresses (msg1,
-                                                 GNUNET_NO,
-                                                 &check_addr,
-                                                 &i));
-  GNUNET_assert (i == 0);
-  GNUNET_free (msg1);
-
-  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-              "Testing address iteration to copy HELLO...\n");
-  i = 2;
-  msg1 = GNUNET_HELLO_iterate_addresses (msg3,
-                                         GNUNET_YES,
-                                         &remove_some,
-                                         &i);
-  GNUNET_assert (msg1 != NULL);
-  GNUNET_assert (i == 0);
-  i = 1;
-  GNUNET_assert (NULL ==
-                 GNUNET_HELLO_iterate_addresses (msg1,
-                                                 GNUNET_NO,
-                                                 &check_addr,
-                                                 &i));
-  GNUNET_assert (i == 0);
-  GNUNET_free (msg1);
-
-  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-              "Testing delta address iteration...\n");
-  i = 2;
-  GNUNET_HELLO_iterate_new_addresses (msg3,
-                                      msg2,
-                                      startup_time,
-                                      &check_addr,
-                                      &i);
-  GNUNET_assert (i == 0);
-  GNUNET_free (msg2);
-  GNUNET_free (msg3);
-  return 0;                     /* testcase passed */
-}
-
-
-/* end of test_hello.c */
diff --git a/src/service/core/core_api_cmd_connecting_peers.c 
b/src/service/core/core_api_cmd_connecting_peers.c
index d8434ac1c..5a80ee415 100644
--- a/src/service/core/core_api_cmd_connecting_peers.c
+++ b/src/service/core/core_api_cmd_connecting_peers.c
@@ -28,7 +28,6 @@
 #include "gnunet_testing_ng_lib.h"
 #include "gnunet_testing_netjail_lib.h"
 #include "gnunet_transport_application_service.h"
-#include "gnunet_hello_lib.h"
 #include "gnunet_transport_core_service.h"
 
 /**
diff --git a/src/service/transport/test_transport_api2_tng_node.conf 
b/src/service/core/test_core_just_run.conf
similarity index 71%
copy from src/service/transport/test_transport_api2_tng_node.conf
copy to src/service/core/test_core_just_run.conf
index c50ccf662..7ea8686a1 100644
--- a/src/service/transport/test_transport_api2_tng_node.conf
+++ b/src/service/core/test_core_just_run.conf
@@ -1,9 +1,9 @@
-@INLINE@ template_tng_cfg_peer1.conf
+@INLINE@ ../transport/template_tng_cfg_peer1.conf
 [PATHS]
 GNUNET_TEST_HOME = $GNUNET_TMP/test-transport/api-tcp-p1/
 
 [transport]
-BINARY = gnunet-service-transport
+BINARY = gnunet-service-tng
 #PREFIX = valgrind --leak-check=full --track-origins=yes --trace-children=yes 
--log-file=$GNUNET_TEST_HOME/vg_peer1-%p 
 UNIXPATH = $GNUNET_RUNTIME_DIR/tng-p1.sock
 
@@ -29,6 +29,8 @@ UNIXPATH = $GNUNET_RUNTIME_DIR/udp-comm-p1.sock
 
 [peerstore]
 IMMEDIATE_START = YES
+USE_INCLUDED_HELLOS = YES
+#PREFIX = valgrind --leak-check=full --track-origins=yes --trace-children=yes 
--log-file=$GNUNET_TEST_HOME/vg_peer1-%p
 
 [topology]
 IMMEDIATE_START = YES
@@ -38,3 +40,8 @@ IMMEDIATE_START = YES
 
 [fs]
 IMMEDIATE_START = YES
+
+[hostlist]
+IMMEDIATE_START = YES
+SERVERS = http://192.168.15.1:8080/
+#PREFIX = valgrind --leak-check=full --track-origins=yes --trace-children=yes 
--log-file=$GNUNET_TEST_HOME/vg_peer1-%p
\ No newline at end of file
diff --git a/src/service/transport/test_transport_api2_tng_node.conf 
b/src/service/core/test_core_just_run_host.conf
similarity index 87%
copy from src/service/transport/test_transport_api2_tng_node.conf
copy to src/service/core/test_core_just_run_host.conf
index c50ccf662..045ed5940 100644
--- a/src/service/transport/test_transport_api2_tng_node.conf
+++ b/src/service/core/test_core_just_run_host.conf
@@ -1,9 +1,9 @@
-@INLINE@ template_tng_cfg_peer1.conf
+@INLINE@ ../transport/template_tng_cfg_peer1.conf
 [PATHS]
 GNUNET_TEST_HOME = $GNUNET_TMP/test-transport/api-tcp-p1/
 
 [transport]
-BINARY = gnunet-service-transport
+BINARY = gnunet-service-tng
 #PREFIX = valgrind --leak-check=full --track-origins=yes --trace-children=yes 
--log-file=$GNUNET_TEST_HOME/vg_peer1-%p 
 UNIXPATH = $GNUNET_RUNTIME_DIR/tng-p1.sock
 
@@ -29,6 +29,7 @@ UNIXPATH = $GNUNET_RUNTIME_DIR/udp-comm-p1.sock
 
 [peerstore]
 IMMEDIATE_START = YES
+USE_INCLUDED_HELLOS = YES
 
 [topology]
 IMMEDIATE_START = YES
@@ -38,3 +39,7 @@ IMMEDIATE_START = YES
 
 [fs]
 IMMEDIATE_START = YES
+
+[hostlist]
+IMMEDIATE_START = YES
+OPTIONS = -p
\ No newline at end of file
diff --git a/src/service/dht/dht_api.c b/src/service/dht/dht_api.c
index 62a8dd0fd..6a218e29d 100644
--- a/src/service/dht/dht_api.c
+++ b/src/service/dht/dht_api.c
@@ -29,7 +29,6 @@
 #include "gnunet_constants.h"
 #include "gnunet_signatures.h"
 #include "gnunet_arm_service.h"
-#include "gnunet_hello_lib.h"
 #include "gnunet_protocols.h"
 #include "gnunet_dht_service.h"
 #include "dht.h"
diff --git a/src/service/dht/test_dht_api.c b/src/service/dht/test_dht_api.c
index 044983b7e..0b51477fe 100644
--- a/src/service/dht/test_dht_api.c
+++ b/src/service/dht/test_dht_api.c
@@ -26,7 +26,6 @@
  */
 #include "platform.h"
 #include "gnunet_util_lib.h"
-#include "gnunet_hello_lib.h"
 #include "gnunet_testing_lib.h"
 #include "gnunet_dht_service.h"
 
diff --git a/src/service/hostlist/gnunet-daemon-hostlist_client.c 
b/src/service/hostlist/gnunet-daemon-hostlist_client.c
index aceea0aaf..483233fc6 100644
--- a/src/service/hostlist/gnunet-daemon-hostlist_client.c
+++ b/src/service/hostlist/gnunet-daemon-hostlist_client.c
@@ -229,6 +229,16 @@ static struct GNUNET_SCHEDULER_Task 
*ti_testing_intervall_task;
  */
 static struct GNUNET_TIME_Absolute end_time;
 
+/**
+ * Head of the linkd list to store the store context for hellos.
+ */
+static struct GNUNET_PEERSTORE_StoreHelloContext *shc_head;
+
+/**
+ * Tail of the linkd list to store the store context for hellos.
+ */
+static struct GNUNET_PEERSTORE_StoreHelloContext *shc_tail;
+
 /**
  * Head of the linked list used to store hostlists
  */
@@ -313,8 +323,14 @@ static struct GNUNET_PEERSTORE_Handle *peerstore;
 static void
 shc_cont (void *cls, int success)
 {
-  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-              "Hostlist entry stored successfully!\n");
+  (void *) cls;
+
+  if (GNUNET_YES == success)
+    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+                "Hostlist entry stored successfully!\n");
+  else
+    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+                "Error storing hostlist entry!\n");
 }
 
 
@@ -398,7 +414,8 @@ callback_download (void *ptr, size_t size, size_t nmemb, 
void *ctx)
     shc = GNUNET_PEERSTORE_hello_add (peerstore,
                                       msg,
                                       shc_cont,
-                                      shc);
+                                      NULL);
+    GNUNET_CONTAINER_DLL_insert (shc_head, shc_tail, shc);
     memmove (download_buffer, &download_buffer[msize], download_pos - msize);
     download_pos -= msize;
   }
@@ -1735,7 +1752,14 @@ GNUNET_HOSTLIST_client_start (const struct 
GNUNET_CONFIGURATION_Handle *c,
 void
 GNUNET_HOSTLIST_client_stop ()
 {
+  struct GNUNET_PEERSTORE_StoreHelloContext *pos;
+  
   GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Hostlist client shutdown\n");
+  while (NULL != (pos = shc_head))
+  {
+    GNUNET_CONTAINER_DLL_remove (shc_head, shc_tail, pos);
+    GNUNET_PEERSTORE_hello_add_cancel (pos);
+  }
   if (NULL != sget)
   {
     GNUNET_STATISTICS_get_cancel (sget);
diff --git a/src/service/peerstore/peerstore_api.c 
b/src/service/peerstore/peerstore_api.c
index 481f4c6bb..d5cb091f9 100644
--- a/src/service/peerstore/peerstore_api.c
+++ b/src/service/peerstore/peerstore_api.c
@@ -312,52 +312,6 @@ struct GNUNET_PEERSTORE_NotifyContext
   unsigned int canceled;
 };
 
-/**
- * Context for a add hello uri request.
- */
-struct GNUNET_PEERSTORE_StoreHelloContext
-{
-  /**
-   * Peerstore handle.
-   */
-  struct GNUNET_PEERSTORE_Handle *h;
-
-  /**
-   * Function to call with information.
-   */
-  GNUNET_PEERSTORE_Continuation cont;
-
-  /**
-   * Closure for @e callback.
-   */
-  void *cont_cls;
-
-  /**
-   * Map with all store contexts started during adding hello.
-   */
-  struct GNUNET_CONTAINER_MultiPeerMap *store_context_map;
-
-  /**
-   * Active watch to be notified about conflicting hello uri add requests.
-   */
-  struct GNUNET_PEERSTORE_WatchContext *wc;
-
-  /**
-   * Hello uri which was request for storing.
-   */
-  struct GNUNET_MessageHeader *hello;
-
-  /**
-   * The peer id for the hello.
-   */
-  struct GNUNET_PeerIdentity *pid;
-
-  /**
-   * Was this request successful.
-   */
-  int success;
-};
-
 
/******************************************************************************/
 /*******************             DECLARATIONS             
*********************/
 
/******************************************************************************/
diff --git a/src/service/topology/gnunet-daemon-topology.c 
b/src/service/topology/gnunet-daemon-topology.c
index f68b838d4..0f4b046f8 100644
--- a/src/service/topology/gnunet-daemon-topology.c
+++ b/src/service/topology/gnunet-daemon-topology.c
@@ -178,6 +178,16 @@ static unsigned int connection_count;
  */
 static unsigned int target_connection_count;
 
+/**
+ * Head of the linkd list to store the store context for hellos.
+ */
+static struct GNUNET_PEERSTORE_StoreHelloContext *shc_head;
+
+/**
+ * Tail of the linkd list to store the store context for hellos.
+ */
+static struct GNUNET_PEERSTORE_StoreHelloContext *shc_tail;
+
 /**
  * Free all resources associated with the given peer.
  *
@@ -833,7 +843,14 @@ check_hello (void *cls, const struct GNUNET_MessageHeader 
*message)
 static void
 shc_cont (void *cls, int success)
 {
-  GNUNET_free (cls);
+  (void *) cls;
+
+  if (GNUNET_YES == success)
+    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+                "Hello stored successfully!\n");
+  else
+    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+                "Error storing hello!\n");
 }
 
 
@@ -860,8 +877,8 @@ handle_hello (void *cls, const struct GNUNET_MessageHeader 
*message)
                             1,
                             GNUNET_NO);
   GNUNET_HELLO_builder_from_msg (message);
-  // FIXME this is not working shc uninitialized
-  shc = GNUNET_PEERSTORE_hello_add (ps, message, &shc_cont, shc);
+  shc = GNUNET_PEERSTORE_hello_add (ps, message, &shc_cont, NULL);
+  GNUNET_CONTAINER_DLL_insert (shc_head, shc_tail, shc);
   GNUNET_HELLO_builder_free (builder);
 }
 
@@ -875,6 +892,14 @@ handle_hello (void *cls, const struct GNUNET_MessageHeader 
*message)
 static void
 cleaning_task (void *cls)
 {
+  struct GNUNET_PEERSTORE_StoreHelloContext *pos;
+
+  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Topology shutdown\n");
+  while (NULL != (pos = shc_head))
+  {
+    GNUNET_CONTAINER_DLL_remove (shc_head, shc_tail, pos);
+    GNUNET_PEERSTORE_hello_add_cancel (pos);
+  }
   if (NULL != peerstore_notify)
   {
     GNUNET_PEERSTORE_hello_changed_notify_cancel (peerstore_notify);
diff --git a/src/service/transport/gnunet-service-transport.c 
b/src/service/transport/gnunet-service-transport.c
index f7980f7a2..a1848fbb1 100644
--- a/src/service/transport/gnunet-service-transport.c
+++ b/src/service/transport/gnunet-service-transport.c
@@ -77,7 +77,6 @@
 #include "gnunet_statistics_service.h"
 #include "gnunet_transport_monitor_service.h"
 #include "gnunet_peerstore_service.h"
-#include "gnunet_hello_lib.h"
 #include "gnunet_hello_uri_lib.h"
 #include "gnunet_signatures.h"
 #include "transport.h"
diff --git a/src/service/transport/transport-testing-communicator.c 
b/src/service/transport/transport-testing-communicator.c
index 553426b66..168b29ce5 100644
--- a/src/service/transport/transport-testing-communicator.c
+++ b/src/service/transport/transport-testing-communicator.c
@@ -29,7 +29,6 @@
 #include "gnunet_protocols.h"
 #include "gnunet_constants.h"
 #include "transport-testing-communicator.h"
-#include "gnunet_hello_lib.h"
 #include "gnunet_signatures.h"
 #include "transport.h"
 #include <inttypes.h>
diff --git a/src/service/transport/transport-testing2.c 
b/src/service/transport/transport-testing2.c
index afa0b0ad4..b88a2b7e9 100644
--- a/src/service/transport/transport-testing2.c
+++ b/src/service/transport/transport-testing2.c
@@ -247,15 +247,6 @@ notify_connect (void *cls,
 }
 
 
-/**
- * Offer the current HELLO of P2 to P1.
- *
- * @param cls our `struct GNUNET_TRANSPORT_TESTING_ConnectRequest`
- */
-static void
-offer_hello (void *cls);
-
-
 static void
 notify_disconnect (void *cls,
                    const struct GNUNET_PeerIdentity *peer,
@@ -318,9 +309,6 @@ notify_disconnect (void *cls,
     {
       cc->connected = GNUNET_NO;
       /* start trying to connect */
-      if (NULL == cc->tct)
-        cc->tct = GNUNET_SCHEDULER_add_now (&offer_hello,
-                                            cc);
       if (NULL == cc->ah_sh)
         cc->ah_sh = GNUNET_TRANSPORT_application_suggest (cc->p1->ah,
                                                           &p2->id,
@@ -725,45 +713,6 @@ GNUNET_TRANSPORT_TESTING_stop_peer (struct
    }*/
 
 
-static void
-offer_hello (void *cls)
-{
-  struct GNUNET_TRANSPORT_TESTING_ConnectRequest *cc = cls;
-  struct GNUNET_TRANSPORT_TESTING_PeerContext *p1 = cc->p1;
-  struct GNUNET_TRANSPORT_TESTING_PeerContext *p2 = cc->p2;
-  struct GNUNET_TIME_Absolute t;
-  enum GNUNET_NetworkType nt = 0;
-  char *addr;
-
-  cc->tct = NULL;
-  {
-    char *p2_s = GNUNET_strdup (GNUNET_i2s (&p2->id));
-
-    LOG (GNUNET_ERROR_TYPE_DEBUG,
-         "Asking peer %u (`%s') to connect peer %u (`%s'), providing HELLO 
with %s\n",
-         p1->no,
-         GNUNET_i2s (&p1->id),
-         p2->no,
-         p2_s,
-         p2->hello);
-    GNUNET_free (p2_s);
-  }
-
-  addr = GNUNET_HELLO_extract_address (p2->hello,
-                                       p2->hello_size,
-                                       &p2->id,
-                                       &nt,
-                                       &t);
-  GNUNET_assert (NULL != addr);
-  GNUNET_assert (NULL != p1->hello);
-  GNUNET_TRANSPORT_application_validate (p1->ah,
-                                         &p2->id,
-                                         nt,
-                                         addr);
-  GNUNET_free (addr);
-}
-
-
 /**
  * Initiate a connection from p1 to p2 by offering p1 p2's HELLO message
  *
@@ -816,8 +765,6 @@ GNUNET_TRANSPORT_TESTING_connect_peers (struct
   GNUNET_CONTAINER_DLL_insert (tth->cc_head,
                                tth->cc_tail,
                                cc);
-  cc->tct = GNUNET_SCHEDULER_add_now (&offer_hello,
-                                      cc);
   cc->ah_sh = GNUNET_TRANSPORT_application_suggest (cc->p1->ah,
                                                     &p2->id,
                                                     GNUNET_MQ_PRIO_BEST_EFFORT,
diff --git a/src/service/transport/transport-testing2.h 
b/src/service/transport/transport-testing2.h
index 8f1071e8f..a68c9df38 100644
--- a/src/service/transport/transport-testing2.h
+++ b/src/service/transport/transport-testing2.h
@@ -28,7 +28,6 @@
 #define TRANSPORT_TESTING_H
 #include "platform.h"
 #include "gnunet_util_lib.h"
-#include "gnunet_hello_lib.h"
 #include "gnunet_peerstore_service.h"
 #include "gnunet_transport_core_service.h"
 #include "gnunet_transport_application_service.h"
diff --git a/src/service/transport/transport_api2_core.c 
b/src/service/transport/transport_api2_core.c
index 0d2a0ac7f..3eb6c651e 100644
--- a/src/service/transport/transport_api2_core.c
+++ b/src/service/transport/transport_api2_core.c
@@ -27,7 +27,6 @@
 #include "gnunet_util_lib.h"
 #include "gnunet_constants.h"
 #include "gnunet_arm_service.h"
-#include "gnunet_hello_lib.h"
 #include "gnunet_protocols.h"
 #include "gnunet_transport_core_service.h"
 #include "transport.h"
diff --git a/src/service/transport/transport_api_cmd_backchannel_check.c 
b/src/service/transport/transport_api_cmd_backchannel_check.c
index 68bdae69c..388001496 100644
--- a/src/service/transport/transport_api_cmd_backchannel_check.c
+++ b/src/service/transport/transport_api_cmd_backchannel_check.c
@@ -29,7 +29,6 @@
 #include "gnunet_testing_ng_lib.h"
 #include "gnunet_testing_netjail_lib.h"
 #include "gnunet_transport_application_service.h"
-#include "gnunet_hello_lib.h"
 #include "transport-testing-cmds.h"
 
 /**
diff --git a/src/service/transport/transport_api_cmd_connecting_peers.c 
b/src/service/transport/transport_api_cmd_connecting_peers.c
index 34b2d2b48..e38d5b860 100644
--- a/src/service/transport/transport_api_cmd_connecting_peers.c
+++ b/src/service/transport/transport_api_cmd_connecting_peers.c
@@ -28,7 +28,6 @@
 #include "gnunet_testing_ng_lib.h"
 #include "gnunet_testing_netjail_lib.h"
 #include "gnunet_transport_application_service.h"
-#include "gnunet_hello_lib.h"
 #include "transport-testing-cmds.h"
 
 /**

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