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/*
This file is part of GNUnet.
Copyright (C) 2009, 2010, 2011, 2012, 2013 GNUnet e.V.
GNUnet is free software: you can redistribute it and/or modify it
under the terms of the GNU 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.
*/
/**
* @file scalarproduct.h
* @brief Scalar Product API Message Types
* @author Christian M. Fuchs
*/
#ifndef SCALARPRODUCT_H
#define SCALARPRODUCT_H
GNUNET_NETWORK_STRUCT_BEGIN
/**
* Log an error message at log-level 'level' that indicates
* a failure of the command 'cmd' with the message given
* by gcry_strerror(rc).
*/
#define LOG_GCRY(level, cmd, rc) do { LOG(level, _("`%s' failed at %s:%d with error: %s\n"), cmd, __FILE__, __LINE__, gcry_strerror(rc)); } while(0)
/**
* Message type passed from client to service
* to initiate a request or responder role
*/
struct AliceComputationMessage
{
/**
* GNUNET message header with type
* #GNUNET_MESSAGE_TYPE_SCALARPRODUCT_CLIENT_TO_ALICE
*/
struct GNUNET_MessageHeader header;
/**
* how many elements the vector in payload contains
*/
uint32_t element_count_total GNUNET_PACKED;
/**
* contained elements the vector in payload contains
*/
uint32_t element_count_contained GNUNET_PACKED;
/**
* Always zero.
*/
uint32_t reserved GNUNET_PACKED;
/**
* the transaction/session key used to identify a session
*/
struct GNUNET_HashCode session_key;
/**
* the identity of a remote peer we want to communicate with
*/
struct GNUNET_PeerIdentity peer;
/**
* followed by struct GNUNET_SCALARPRODUCT_Element[]
*/
};
/**
* Message type passed from client to service
* to initiate a request or responder role
*/
struct BobComputationMessage
{
/**
* GNUNET message header with type
* #GNUNET_MESSAGE_TYPE_SCALARPRODUCT_CLIENT_TO_BOB
*/
struct GNUNET_MessageHeader header;
/**
* how many elements the vector in payload contains
*/
uint32_t element_count_total GNUNET_PACKED;
/**
* contained elements the vector in payload contains
*/
uint32_t element_count_contained GNUNET_PACKED;
/**
* Always zero.
*/
uint32_t reserved GNUNET_PACKED;
/**
* the transaction/session key used to identify a session
*/
struct GNUNET_HashCode session_key;
/**
* followed by struct GNUNET_SCALARPRODUCT_Element[]
*/
};
/**
* multipart messages following `struct ComputationMessage`
*/
struct ComputationBobCryptodataMultipartMessage
{
/**
* GNUNET message header
*/
struct GNUNET_MessageHeader header;
/**
* contained elements the vector in payload contains
*/
uint32_t element_count_contained GNUNET_PACKED;
/**
* followed by struct GNUNET_SCALARPRODUCT_Element[]
*/
};
/**
* Message type passed from service client
* to finalize a session as requester or responder
*/
struct ClientResponseMessage
{
/**
* GNUNET message header
*/
struct GNUNET_MessageHeader header;
/**
* 0 if no product attached
*/
uint32_t product_length GNUNET_PACKED;
/**
* Status information about the outcome of this session,
* An `enum GNUNET_SCALARPRODUCT_ResponseStatus` (in NBO).
*/
uint32_t status GNUNET_PACKED;
/**
* Workaround for libgcrypt: -1 if negative, 0 if zero, else 1
*/
int32_t range GNUNET_PACKED;
/**
* followed by product of length product_length (or nothing)
*/
};
GNUNET_NETWORK_STRUCT_END
#endif /* SCALARPRODUCT_H */
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