gnunet-service-messenger_room.h

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/*
   This file is part of GNUnet.
   Copyright (C) 2020--2026 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
 */
#ifndef GNUNET_SERVICE_MESSENGER_ROOM_H
#define GNUNET_SERVICE_MESSENGER_ROOM_H
 
#include "gnunet_cadet_service.h"
#include "gnunet_common.h"
#include "gnunet_util_lib.h"
 
#include "gnunet_messenger_service.h"
#include "gnunet_pils_service.h"
 
#include "gnunet-service-messenger_handle.h"
#include "gnunet-service-messenger_message_state.h"
#include "gnunet-service-messenger_list_messages.h"
#include "gnunet-service-messenger_member_store.h"
#include "gnunet-service-messenger_message_store.h"
#include "gnunet-service-messenger_operation_store.h"
#include "gnunet-service-messenger_peer_store.h"
 
#include "messenger_api_list_tunnels.h"
#include "messenger_api_message.h"
 
#define GNUNET_MESSENGER_IDLE_DELAY GNUNET_TIME_relative_multiply \
          (GNUNET_TIME_relative_get_second_ (), 5)
 
#define GNUNET_MESSENGER_REQUEST_DELAY GNUNET_TIME_relative_multiply \
          (GNUNET_TIME_relative_get_minute_ (), 5)
 
#define GNUNET_MESSENGER_MERGE_DELAY GNUNET_TIME_relative_multiply \
          (GNUNET_TIME_relative_get_second_ (), 30)
 
struct GNUNET_MESSENGER_SrvTunnel;
struct GNUNET_MESSENGER_SrvMemberSession;
struct GNUNET_MESSENGER_SrvRoom;
 
typedef void (*GNUNET_MESSENGER_SignedCallback)(void *cls,
                                                struct GNUNET_MESSENGER_SrvRoom
                                                *room,
                                                struct GNUNET_MESSENGER_Message
                                                *message,
                                                struct GNUNET_MQ_Envelope *
                                                envelope,
                                                const struct GNUNET_HashCode *
                                                hash);
 
struct GNUNET_MESSENGER_SrvRoomSignature
{
  struct GNUNET_MESSENGER_SrvRoom *room;
  struct GNUNET_PILS_Operation *operation;
 
  struct GNUNET_MESSENGER_Message *message;
  struct GNUNET_MQ_Envelope *envelope;
 
  GNUNET_MESSENGER_SignedCallback callback;
  void *closure;
 
  struct GNUNET_HashCode hash;
};
 
struct GNUNET_MESSENGER_SrvRoom
{
  struct GNUNET_MESSENGER_Service *service;
  struct GNUNET_MESSENGER_SrvHandle *host;
  struct GNUNET_MESSENGER_SrvHandle *sync;
  struct GNUNET_CADET_Port *port;
 
  struct GNUNET_HashCode key;
 
  struct GNUNET_CONTAINER_MultiPeerMap *tunnels;
  struct GNUNET_CONTAINER_MultiHashMap *signatures;
 
  struct GNUNET_MESSENGER_PeerStore peer_store;
  struct GNUNET_MESSENGER_MemberStore member_store;
  struct GNUNET_MESSENGER_MessageStore message_store;
  struct GNUNET_MESSENGER_OperationStore operation_store;
 
  struct GNUNET_MESSENGER_ListTunnels basement;
  struct GNUNET_MESSENGER_MessageState state;
 
  struct GNUNET_HashCode *peer_message;
 
  struct GNUNET_MESSENGER_ListMessages handling;
  struct GNUNET_SCHEDULER_Task *idle;
};
 
struct GNUNET_MESSENGER_SrvRoom*
create_srv_room (struct GNUNET_MESSENGER_SrvHandle *handle,
                 const struct GNUNET_HashCode *key);
 
void
destroy_srv_room (struct GNUNET_MESSENGER_SrvRoom *room,
                  enum GNUNET_GenericReturnValue deletion);
 
struct GNUNET_MESSENGER_PeerStore*
get_srv_room_peer_store (struct GNUNET_MESSENGER_SrvRoom *room);
 
struct GNUNET_MESSENGER_MemberStore*
get_srv_room_member_store (struct GNUNET_MESSENGER_SrvRoom *room);
 
struct GNUNET_MESSENGER_MessageStore*
get_srv_room_message_store (struct GNUNET_MESSENGER_SrvRoom *room);
 
struct GNUNET_MESSENGER_OperationStore*
get_srv_room_operation_store (struct GNUNET_MESSENGER_SrvRoom *room);
 
enum GNUNET_GenericReturnValue
open_srv_room (struct GNUNET_MESSENGER_SrvRoom *room,
               struct GNUNET_MESSENGER_SrvHandle *handle);
 
enum GNUNET_GenericReturnValue
enter_srv_room_at (struct GNUNET_MESSENGER_SrvRoom *room,
                   struct GNUNET_MESSENGER_SrvHandle *handle,
                   const struct GNUNET_PeerIdentity *door);
 
enum GNUNET_GenericReturnValue
sign_srv_room_message (struct GNUNET_MESSENGER_SrvRoom *room,
                       struct GNUNET_MESSENGER_Message *message,
                       GNUNET_MESSENGER_SignedCallback callback,
                       void *closure);
 
enum GNUNET_GenericReturnValue
send_srv_room_message (struct GNUNET_MESSENGER_SrvRoom *room,
                       struct GNUNET_MESSENGER_SrvHandle *handle,
                       struct GNUNET_MESSENGER_Message *message);
 
void
send_srv_room_envelope (struct GNUNET_MESSENGER_SrvRoom *room,
                        struct GNUNET_MESSENGER_SrvTunnel *tunnel,
                        struct GNUNET_MQ_Envelope *envelope,
                        const struct GNUNET_HashCode *hash);
 
void
check_srv_room_peer_status (struct GNUNET_MESSENGER_SrvRoom *room,
                            struct GNUNET_MESSENGER_SrvTunnel *tunnel);
 
enum GNUNET_GenericReturnValue
merge_srv_room_last_messages (struct GNUNET_MESSENGER_SrvRoom *room,
                              struct GNUNET_MESSENGER_SrvHandle *handle);
 
enum GNUNET_GenericReturnValue
delete_srv_room_message (struct GNUNET_MESSENGER_SrvRoom *room,
                         struct GNUNET_MESSENGER_SrvMemberSession *session,
                         const struct GNUNET_HashCode *hash,
                         const struct GNUNET_TIME_Relative delay);
 
struct GNUNET_CADET_Handle*
get_srv_room_cadet (struct GNUNET_MESSENGER_SrvRoom *room);
 
const struct GNUNET_HashCode*
get_srv_room_key (const struct GNUNET_MESSENGER_SrvRoom *room);
 
const struct GNUNET_MESSENGER_SrvTunnel*
get_srv_room_tunnel (const struct GNUNET_MESSENGER_SrvRoom *room,
                     const struct GNUNET_PeerIdentity *peer);
 
typedef void (GNUNET_MESSENGER_MessageRequestCallback) (
  void *cls,
  struct GNUNET_MESSENGER_SrvRoom *room,
  const struct GNUNET_MESSENGER_Message *message,
  const struct GNUNET_HashCode *hash);
 
enum GNUNET_GenericReturnValue
request_srv_room_message (struct GNUNET_MESSENGER_SrvRoom *room,
                          const struct GNUNET_HashCode *hash,
                          const struct GNUNET_MESSENGER_SrvMemberSession *
                          session,
                          GNUNET_MESSENGER_MessageRequestCallback callback,
                          void *cls);
 
void
solve_srv_room_member_collisions (struct GNUNET_MESSENGER_SrvRoom *room,
                                  const struct
                                  GNUNET_CRYPTO_BlindablePublicKey *public_key,
                                  const struct GNUNET_ShortHashCode *member_id,
                                  struct GNUNET_TIME_Absolute timestamp);
 
void
rebuild_srv_room_basement_structure (struct GNUNET_MESSENGER_SrvRoom *room);
 
uint32_t
get_srv_room_amount_of_tunnels (const struct GNUNET_MESSENGER_SrvRoom *room);
 
uint32_t
get_srv_room_connection_flags (const struct GNUNET_MESSENGER_SrvRoom *room);
 
void
cleanup_srv_room_discourse_messages (struct GNUNET_MESSENGER_SrvRoom *room,
                                     const struct GNUNET_ShortHashCode *
                                     discourse);
 
void
load_srv_room (struct GNUNET_MESSENGER_SrvRoom *room);
 
void
save_srv_room (struct GNUNET_MESSENGER_SrvRoom *room);
 
void
remove_srv_room (struct GNUNET_MESSENGER_SrvRoom *room);
 
#endif // GNUNET_SERVICE_MESSENGER_ROOM_H