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- /*
- This file is part of GNUnet.
- Copyright (C) 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
- */
- /**
- * @file transport/gnunet-service-transport.h
- * @brief globals
- * @author Christian Grothoff
- */
- #ifndef GNUNET_SERVICE_TRANSPORT_H
- #define GNUNET_SERVICE_TRANSPORT_H
- #include "gnunet_util_lib.h"
- #include "gnunet_statistics_service.h"
- #include "gnunet_ats_service.h"
- #include "gnunet_transport_service.h"
- #define VERBOSE_VALIDATION GNUNET_YES
- /**
- * Statistics handle.
- */
- extern struct GNUNET_STATISTICS_Handle *GST_stats;
- /**
- * Configuration handle.
- */
- extern const struct GNUNET_CONFIGURATION_Handle *GST_cfg;
- /**
- * Configuration handle.
- */
- extern struct GNUNET_PeerIdentity GST_my_identity;
- /**
- * Handle to peerinfo service.
- */
- extern struct GNUNET_PEERINFO_Handle *GST_peerinfo;
- /**
- * Our private key.
- */
- extern struct GNUNET_CRYPTO_EddsaPrivateKey *GST_my_private_key;
- /**
- * ATS handle.
- */
- extern struct GNUNET_ATS_SchedulingHandle *GST_ats;
- /**
- * ATS connectivity handle.
- */
- extern struct GNUNET_ATS_ConnectivityHandle *GST_ats_connect;
- /**
- * Interface scanner determines our LAN address range(s).
- */
- extern struct GNUNET_NT_InterfaceScanner *GST_is;
- /**
- * Function to call when a peer's address has changed
- *
- * @param cls closure
- * @param peer peer this update is about,
- * @param address address, NULL for disconnect notification
- */
- typedef void
- (*GNUNET_TRANSPORT_NeighbourChangeCallback) (void *cls,
- const struct GNUNET_PeerIdentity *peer,
- const struct GNUNET_HELLO_Address *address,
- enum GNUNET_TRANSPORT_PeerState state,
- struct GNUNET_TIME_Absolute state_timeout,
- struct GNUNET_BANDWIDTH_Value32NBO bandwidth_in,
- struct GNUNET_BANDWIDTH_Value32NBO bandwidth_out);
- /**
- * Continuation called from a blacklist test.
- *
- * @param cls closure
- * @param peer identity of peer that was tested
- * @param address address associated with the request
- * @param session session associated with the request
- * @param result #GNUNET_OK if the connection is allowed,
- * #GNUNET_NO if not,
- * #GNUNET_SYSERR if operation was aborted
- */
- typedef void
- (*GST_BlacklistTestContinuation) (void *cls,
- const struct GNUNET_PeerIdentity *peer,
- const struct GNUNET_HELLO_Address *address,
- struct GNUNET_ATS_Session *session,
- int result);
- /**
- * Add the given peer to the blacklist (for the given transport).
- *
- * @param peer peer to blacklist
- * @param transport_name transport to blacklist for this peer, NULL for all
- */
- void
- GST_blacklist_add_peer (const struct GNUNET_PeerIdentity *peer,
- const char *transport_name);
- /**
- * Handle to an active blacklist check.
- */
- struct GST_BlacklistCheck;
- /**
- * Test if a peer/transport combination is blacklisted.
- *
- * @param peer the identity of the peer to test
- * @param transport_name name of the transport to test, never NULL
- * @param cont function to call with result
- * @param cont_cls closure for @a cont
- * @param address address to pass back to @a cont, can be NULL
- * @param session session to pass back to @a cont, can be NULL
- * @return handle to the blacklist check, NULL if the decision
- * was made instantly and @a cont was already called
- */
- struct GST_BlacklistCheck *
- GST_blacklist_test_allowed (const struct GNUNET_PeerIdentity *peer,
- const char *transport_name,
- GST_BlacklistTestContinuation cont,
- void *cont_cls,
- const struct GNUNET_HELLO_Address *address,
- struct GNUNET_ATS_Session *session);
- /**
- * Abort blacklist if @a address and @a session match.
- *
- * @param address address used to abort matching checks
- * @param session session used to abort matching checks
- */
- void
- GST_blacklist_abort_matching (const struct GNUNET_HELLO_Address *address,
- struct GNUNET_ATS_Session *session);
- /**
- * Cancel a blacklist check.
- *
- * @param bc check to cancel
- */
- void
- GST_blacklist_test_cancel (struct GST_BlacklistCheck *bc);
- /**
- * Function called by the transport for each received message.
- *
- * @param cls closure, const char* with the name of the plugin we received the message from
- * @param address address and (claimed) identity of the other peer
- * @param session identifier used for this session (NULL for plugins
- * that do not offer bi-directional communication to the sender
- * using the same "connection")
- * @param message the message, NULL if we only care about
- * learning about the delay until we should receive again
- * @return how long the plugin should wait until receiving more data
- * (plugins that do not support this, can ignore the return value)
- */
- struct GNUNET_TIME_Relative
- GST_receive_callback (void *cls,
- const struct GNUNET_HELLO_Address *address,
- struct GNUNET_ATS_Session *session,
- const struct GNUNET_MessageHeader *message);
- /**
- * Broadcast the given message to all of our clients.
- *
- * @param msg message to broadcast
- * @param may_drop #GNUNET_YES if the message can be dropped / is payload
- */
- void
- GST_clients_broadcast (const struct GNUNET_MessageHeader *msg,
- int may_drop);
- /**
- * Broadcast the new active address to all clients monitoring the peer.
- *
- * @param peer peer this update is about (never NULL)
- * @param address address, NULL on disconnect
- * @param state the current state of the peer
- * @param state_timeout the time out for the state
- */
- void
- GST_clients_broadcast_peer_notification (const struct GNUNET_PeerIdentity *peer,
- const struct GNUNET_HELLO_Address *address,
- enum GNUNET_TRANSPORT_PeerState state,
- struct GNUNET_TIME_Absolute state_timeout);
- /**
- * Notify all clients about a disconnect, and cancel
- * pending SEND_OK messages for this peer.
- *
- * @param peer peer that disconnected
- */
- void
- GST_clients_broadcast_disconnect (const struct GNUNET_PeerIdentity *peer);
- #endif
- /* end of file gnunet-service-transport_plugins.h */
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