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-rw-r--r--src/messenger/gnunet-service-messenger_tunnel.h155
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diff --git a/src/messenger/gnunet-service-messenger_tunnel.h b/src/messenger/gnunet-service-messenger_tunnel.h
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--- a/src/messenger/gnunet-service-messenger_tunnel.h
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-/*
- This file is part of GNUnet.
- Copyright (C) 2020 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
- */
-/**
- * @author Tobias Frisch
- * @file src/messenger/gnunet-service-messenger_tunnel.h
- * @brief GNUnet MESSENGER service
- */
-
-#ifndef GNUNET_SERVICE_MESSENGER_TUNNEL_H
-#define GNUNET_SERVICE_MESSENGER_TUNNEL_H
-
-#include "platform.h"
-#include "gnunet_cadet_service.h"
-#include "gnunet_peer_lib.h"
-#include "gnunet_crypto_lib.h"
-
-#include "gnunet-service-messenger_room.h"
-
-struct GNUNET_MESSENGER_SrvTunnel
-{
- struct GNUNET_MESSENGER_SrvRoom *room;
- struct GNUNET_CADET_Channel *channel;
-
- GNUNET_PEER_Id peer;
- struct GNUNET_ShortHashCode *contact_id;
-
- struct GNUNET_HashCode *peer_message;
- struct GNUNET_HashCode *last_message;
-};
-
-/**
- * Creates and allocates a tunnel of a <i>room</i> to a specific peer identity.
- *
- * @param room Room
- * @param door Peer identity
- * @return New tunnel
- */
-struct GNUNET_MESSENGER_SrvTunnel*
-create_tunnel (struct GNUNET_MESSENGER_SrvRoom *room, const struct GNUNET_PeerIdentity *door);
-
-/**
- * Destroys a <i>tunnel</i> and frees its memory fully.
- *
- * @param tunnel
- */
-void
-destroy_tunnel (struct GNUNET_MESSENGER_SrvTunnel *tunnel);
-
-/**
- * Binds a CADET <i>channel</i> to a <i>tunnel</i> on returns GNUNET_YES only if
- * the bounds channel was replaced successfully, otherwise GNUNET_NO gets returned.
- *
- * @param tunnel Tunnel
- * @param channel CADET channel
- * @return GNUNET_YES on success, otherwise GNUNET_NO
- */
-int
-bind_tunnel (struct GNUNET_MESSENGER_SrvTunnel *tunnel, struct GNUNET_CADET_Channel *channel);
-
-/**
- * Tries to connect a <i>tunnel</i> by creating a new CADET channel and binding it.
- * The function returns GNUNET_YES on success, otherwise GNUNET_NO.
- *
- * @param tunnel Tunnel
- * @return GNUNET_YES on success, otherwise GNUNET_NO
- */
-int
-connect_tunnel (struct GNUNET_MESSENGER_SrvTunnel *tunnel);
-
-/**
- * Disconnects and unbinds a channel from a <i>tunnel</i>. The actual disconnection
- * will be asynchronous.
- *
- * @param tunnel Tunnel
- */
-void
-disconnect_tunnel (struct GNUNET_MESSENGER_SrvTunnel *tunnel);
-
-/**
- * Returns the status of a currently bound channel of a <i>tunnel</i>.
- *
- * @param tunnel Tunnel
- * @return GNUNET_YES or GNUNET_NO
- */
-int
-is_tunnel_connected (const struct GNUNET_MESSENGER_SrvTunnel *tunnel);
-
-/**
- * Sends an envelope containing a <i>message</i> with a given <i>hash</i> through
- * a <i>tunnel</i> by a given <i>handle</i>.
- *
- * @param tunnel Tunnel
- * @param handle Handle
- * @param env Envelope
- * @param message Message
- * @param hash Hash of message
- */
-void
-send_tunnel_envelope (struct GNUNET_MESSENGER_SrvTunnel *tunnel, void *handle, struct GNUNET_MQ_Envelope *env,
- struct GNUNET_MESSENGER_Message *message, const struct GNUNET_HashCode *hash);
-
-/**
- * Sends a <i>message</i> by packing it automatically into an envelope and passing it
- * through the <i>tunnel</i>. The used <i>handle</i> will sign the message and
- * the <i>hash</i> will be calculated and stored.
- *
- * @param tunnel Tunnel
- * @param handle Handle
- * @param[out] message Message
- * @param[out] hash Hash of message
- */
-void
-send_tunnel_message (struct GNUNET_MESSENGER_SrvTunnel *tunnel, void *handle, struct GNUNET_MESSENGER_Message *message,
- struct GNUNET_HashCode *hash);
-
-/**
- * Forwards a given <i>message</i> with a known <i>hash</i> through a <i>tunnel</i>.
- *
- * @param tunnel Tunnel
- * @param message Message
- * @param hash Hash of message
- */
-void
-forward_tunnel_message (struct GNUNET_MESSENGER_SrvTunnel *tunnel, const struct GNUNET_MESSENGER_Message *message,
- const struct GNUNET_HashCode *hash);
-
-/**
- * Returns the hash of the latest peer message published through a given <i>tunnel</i>
- * and matching the tunnels peer identity. If no peer message has been linked to the tunnel
- * yet, NULL gets returned.
- *
- * @param tunnel Tunnel
- * @return Hash of peer message or NULL
- */
-const struct GNUNET_HashCode*
-get_tunnel_peer_message (const struct GNUNET_MESSENGER_SrvTunnel *tunnel);
-
-#endif //GNUNET_SERVICE_MESSENGER_TUNNEL_H