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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_validation.h
- * @brief address validation API
- * @author Christian Grothoff
- */
- #ifndef GNUNET_SERVICE_TRANSPORT_VALIDATION_H
- #define GNUNET_SERVICE_TRANSPORT_VALIDATION_H
- #include "gnunet_statistics_service.h"
- #include "gnunet_transport_plugin.h"
- #include "gnunet_util_lib.h"
- #include "gnunet_hello_lib.h"
- /**
- * Start the validation subsystem.
- *
- * @param max_fds maximum number of fds to use
- */
- void
- GST_validation_start (unsigned int max_fds);
- /**
- * Stop the validation subsystem.
- */
- void
- GST_validation_stop (void);
- /**
- * Update if we are using an address for a connection actively right now.
- * Based on this, the validation module will measure latency for the
- * address more or less often.
- *
- * @param address the address that we are now using (or not)
- * @param in_use #GNUNET_YES if we are now using the address for a connection,
- * #GNUNET_NO if we are no longer using the address for a connection
- */
- void
- GST_validation_set_address_use (const struct GNUNET_HELLO_Address *address,
- int in_use);
- /**
- * We've received a PING. If appropriate, generate a PONG.
- *
- * @param sender peer sending the PING
- * @param hdr the PING
- * @param sender_address address of the sender, NULL if we did not initiate
- * @param session session we got the PING from
- * @return #GNUNET_OK if the message was fine, #GNUNET_SYSERR on serious error
- */
- int
- GST_validation_handle_ping (const struct GNUNET_PeerIdentity *sender,
- const struct GNUNET_MessageHeader *hdr,
- const struct GNUNET_HELLO_Address *sender_address,
- struct GNUNET_ATS_Session *session);
- /**
- * We've received a PONG. Check if it matches a pending PING and
- * mark the respective address as confirmed.
- *
- * @param sender peer sending the PONG
- * @param hdr the PONG
- * @return #GNUNET_OK if the message was fine, #GNUNET_SYSERR on serious error
- */
- int
- GST_validation_handle_pong (const struct GNUNET_PeerIdentity *sender,
- const struct GNUNET_MessageHeader *hdr);
- /**
- * We've received a HELLO, check which addresses are new and trigger
- * validation.
- *
- * @param hello the HELLO we received
- * @return #GNUNET_OK if the message was fine, #GNUNET_SYSERR on serious error
- */
- int
- GST_validation_handle_hello (const struct GNUNET_MessageHeader *hello);
- /**
- * Validate an individual address.
- *
- * @param address address we should try to validate
- */
- void
- GST_validation_handle_address (const struct GNUNET_HELLO_Address *address);
- /**
- * Function called for each address (or address status change) that
- * the validation module is aware of (for the given target).
- *
- * @param cls closure
- * @param public_key public key for the peer, never NULL
- * @param valid_until is ZERO if we never validated the address,
- * otherwise a time up to when we consider it (or was) valid
- * @param validation_block is FOREVER if the address is for an unsupported plugin (from PEERINFO)
- * is ZERO if the address is considered valid (no validation needed)
- * otherwise a time in the future if we're currently denying re-validation
- * @param address the address
- */
- typedef void
- (*GST_ValidationAddressCallback) (void *cls,
- struct GNUNET_TIME_Absolute valid_until,
- struct GNUNET_TIME_Absolute validation_block,
- const struct GNUNET_HELLO_Address *address);
- /**
- * Call the given function for each address for the given target.
- *
- * @param target peer information is requested for
- * @param cb function to call; will not be called after this function returns
- * @param cb_cls closure for @a cb
- */
- void
- GST_validation_get_addresses (const struct GNUNET_PeerIdentity *target,
- GST_ValidationAddressCallback cb, void *cb_cls);
- #endif
- /* end of file gnunet-service-transport_validation.h */
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