3826 lines
123 KiB
C
3826 lines
123 KiB
C
/*
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This file is part of TALER
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Copyright (C) 2014-2020 Taler Systems SA
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TALER is free software; you can redistribute it and/or modify it under the
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terms of the GNU General Public License as published by the Free Software
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Foundation; either version 3, or (at your option) any later version.
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TALER is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
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A PARTICULAR PURPOSE. See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along with
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TALER; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
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*/
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/**
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* @file include/taler_exchangedb_plugin.h
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* @brief Low-level (statement-level) database access for the exchange
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* @author Florian Dold
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* @author Christian Grothoff
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*/
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#ifndef TALER_EXCHANGEDB_PLUGIN_H
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#define TALER_EXCHANGEDB_PLUGIN_H
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#include <jansson.h>
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#include <gnunet/gnunet_util_lib.h>
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#include <gnunet/gnunet_db_lib.h>
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#include "taler_signatures.h"
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GNUNET_NETWORK_STRUCT_BEGIN
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/**
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* @brief On disk format used for a exchange signing key. Signing keys are used
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* by the exchange to affirm its messages, but not to create coins.
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* Includes the private key followed by the public information about
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* the signing key.
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*/
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struct TALER_EXCHANGEDB_PrivateSigningKeyInformationP
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{
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/**
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* Private key part of the exchange's signing key.
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*/
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struct TALER_ExchangePrivateKeyP signkey_priv;
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/**
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* Signature over @e issue
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*/
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struct TALER_MasterSignatureP master_sig;
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/**
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* Public information about a exchange signing key.
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*/
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struct TALER_ExchangeSigningKeyValidityPS issue;
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};
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/**
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* Information about a denomination key.
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*/
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struct TALER_EXCHANGEDB_DenominationKeyInformationP
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{
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/**
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* Signature over this struct to affirm the validity of the key.
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*/
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struct TALER_MasterSignatureP signature;
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/**
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* Signed properties of the denomination key.
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*/
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struct TALER_DenominationKeyValidityPS properties;
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};
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GNUNET_NETWORK_STRUCT_END
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/**
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* Meta data about an exchange online signing key.
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*/
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struct TALER_EXCHANGEDB_SignkeyMetaData
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{
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/**
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* Start time of the validity period for this key.
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*/
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struct GNUNET_TIME_Absolute start;
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/**
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* The exchange will sign messages with this key between @e start and this time.
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*/
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struct GNUNET_TIME_Absolute expire_sign;
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/**
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* When do signatures with this sign key become invalid?
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* After this point, these signatures cannot be used in (legal)
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* disputes anymore, as the Exchange is then allowed to destroy its side
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* of the evidence. @e expire_legal is expected to be significantly
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* larger than @e expire_sign (by a year or more).
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*/
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struct GNUNET_TIME_Absolute expire_legal;
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};
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/**
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* Enumeration of all of the tables replicated by exchange-auditor
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* database replication.
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*/
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enum TALER_EXCHANGEDB_ReplicatedTable
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{
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TALER_EXCHANGEDB_RT_DENOMINATIONS,
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TALER_EXCHANGEDB_RT_DENOMINATION_REVOCATIONS,
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TALER_EXCHANGEDB_RT_RESERVES,
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TALER_EXCHANGEDB_RT_RESERVES_IN,
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TALER_EXCHANGEDB_RT_RESERVES_CLOSE,
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TALER_EXCHANGEDB_RT_RESERVES_OUT,
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TALER_EXCHANGEDB_RT_AUDITORS,
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TALER_EXCHANGEDB_RT_AUDITOR_DENOM_SIGS,
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TALER_EXCHANGEDB_RT_EXCHANGE_SIGN_KEYS,
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TALER_EXCHANGEDB_RT_SIGNKEY_REVOCATIONS,
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TALER_EXCHANGEDB_RT_KNOWN_COINS,
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TALER_EXCHANGEDB_RT_REFRESH_COMMITMENTS,
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TALER_EXCHANGEDB_RT_REFRESH_REVEALED_COINS,
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TALER_EXCHANGEDB_RT_REFRESH_TRANSFER_KEYS,
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TALER_EXCHANGEDB_RT_DEPOSITS,
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TALER_EXCHANGEDB_RT_REFUNDS,
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TALER_EXCHANGEDB_RT_WIRE_OUT,
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TALER_EXCHANGEDB_RT_AGGREGATION_TRACKING,
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TALER_EXCHANGEDB_RT_WIRE_FEE,
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TALER_EXCHANGEDB_RT_RECOUP,
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TALER_EXCHANGEDB_RT_RECOUP_REFRESH
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};
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/**
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* Record of a single entry in a replicated table.
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*/
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struct TALER_EXCHANGEDB_TableData
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{
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/**
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* Data of which table is returned here?
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*/
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enum TALER_EXCHANGEDB_ReplicatedTable table;
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/**
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* Serial number of the record.
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*/
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uint64_t serial;
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/**
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* Table-specific details.
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*/
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union
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{
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/**
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* Details from the 'denominations' table.
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*/
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struct
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{
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struct TALER_DenominationPublicKey denom_pub;
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struct TALER_MasterSignatureP master_sig;
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struct GNUNET_TIME_Absolute valid_from;
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struct GNUNET_TIME_Absolute expire_withdraw;
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struct GNUNET_TIME_Absolute expire_deposit;
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struct GNUNET_TIME_Absolute expire_legal;
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struct TALER_Amount coin;
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struct TALER_Amount fee_withdraw;
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struct TALER_Amount fee_deposit;
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struct TALER_Amount fee_refresh;
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struct TALER_Amount fee_refund;
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} denominations;
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struct
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{
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struct TALER_MasterSignatureP master_sig;
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uint64_t denominations_serial;
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} denomination_revocations;
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struct
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{
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struct TALER_ReservePublicKeyP reserve_pub;
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char *account_details;
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/**
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* Note: not useful for auditor, because not UPDATEd!
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*/
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struct TALER_Amount current_balance;
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struct GNUNET_TIME_Absolute expiration_date;
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struct GNUNET_TIME_Absolute gc_date;
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} reserves;
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struct
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{
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uint64_t wire_reference;
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struct TALER_Amount credit;
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char *sender_account_details;
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char *exchange_account_section;
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struct GNUNET_TIME_Absolute execution_date;
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uint64_t reserve_uuid;
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} reserves_in;
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struct
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{
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struct GNUNET_TIME_Absolute execution_date;
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struct TALER_WireTransferIdentifierRawP wtid;
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char *receiver_account;
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struct TALER_Amount amount;
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struct TALER_Amount closing_fee;
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uint64_t reserve_uuid;
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} reserves_close;
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struct
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{
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struct GNUNET_HashCode h_blind_ev;
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struct TALER_DenominationSignature denom_sig;
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struct TALER_ReserveSignatureP reserve_sig;
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struct GNUNET_TIME_Absolute execution_date;
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struct TALER_Amount amount_with_fee;
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uint64_t reserve_uuid;
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uint64_t denominations_serial;
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} reserves_out;
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struct
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{
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struct TALER_AuditorPublicKeyP auditor_pub;
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char *auditor_url;
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char *auditor_name;
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bool is_active;
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struct GNUNET_TIME_Absolute last_change;
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} auditors;
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struct
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{
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uint64_t auditor_uuid;
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uint64_t denominations_serial;
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struct TALER_AuditorSignatureP auditor_sig;
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} auditor_denom_sigs;
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struct
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{
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struct TALER_ExchangePublicKeyP exchange_pub;
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struct TALER_MasterSignatureP master_sig;
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struct TALER_EXCHANGEDB_SignkeyMetaData meta;
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} exchange_sign_keys;
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struct
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{
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uint64_t esk_serial;
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struct TALER_MasterSignatureP master_sig;
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} signkey_revocations;
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struct
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{
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struct TALER_CoinSpendPublicKeyP coin_pub;
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struct TALER_DenominationSignature denom_sig;
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uint64_t denominations_serial;
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} known_coins;
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struct
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{
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struct TALER_RefreshCommitmentP rc;
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struct TALER_CoinSpendSignatureP old_coin_sig;
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struct TALER_Amount amount_with_fee;
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uint32_t noreveal_index;
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uint64_t old_known_coin_id;
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} refresh_commitments;
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struct
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{
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uint32_t freshcoin_index;
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struct TALER_CoinSpendSignatureP link_sig;
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void *coin_ev;
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size_t coin_ev_size;
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// h_coin_ev omitted, to be recomputed!
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struct TALER_DenominationSignature ev_sig;
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uint64_t denominations_serial;
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uint64_t melt_serial_id;
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} refresh_revealed_coins;
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struct
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{
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struct TALER_TransferPublicKeyP tp;
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struct TALER_TransferPrivateKeyP tprivs[TALER_CNC_KAPPA - 1];
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uint64_t melt_serial_id;
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} refresh_transfer_keys;
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struct
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{
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struct TALER_Amount amount_with_fee;
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struct GNUNET_TIME_Absolute wallet_timestamp;
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struct GNUNET_TIME_Absolute exchange_timestamp;
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struct GNUNET_TIME_Absolute refund_deadline;
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struct GNUNET_TIME_Absolute wire_deadline;
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struct TALER_MerchantPublicKeyP merchant_pub;
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struct GNUNET_HashCode h_contract_terms;
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// h_wire omitted, to be recomputed!
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struct TALER_CoinSpendSignatureP coin_sig;
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json_t *wire;
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bool tiny;
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bool done;
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uint64_t known_coin_id;
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} deposits;
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struct
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{
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struct TALER_MerchantSignatureP merchant_sig;
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uint64_t rtransaction_id;
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struct TALER_Amount amount_with_fee;
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uint64_t deposit_serial_id;
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} refunds;
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struct
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{
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struct GNUNET_TIME_Absolute execution_date;
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struct TALER_WireTransferIdentifierRawP wtid_raw;
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json_t *wire_target;
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char *exchange_account_section;
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struct TALER_Amount amount;
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} wire_out;
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struct
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{
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uint64_t deposit_serial_id;
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struct TALER_WireTransferIdentifierRawP wtid_raw;
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} aggregation_tracking;
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struct
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{
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char *wire_method;
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struct GNUNET_TIME_Absolute start_date;
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struct GNUNET_TIME_Absolute end_date;
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struct TALER_Amount wire_fee;
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struct TALER_Amount closing_fee;
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struct TALER_MasterSignatureP master_sig;
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} wire_fee;
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struct
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{
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struct TALER_CoinSpendSignatureP coin_sig;
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struct TALER_DenominationBlindingKeyP coin_blind;
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struct TALER_Amount amount;
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struct GNUNET_TIME_Absolute timestamp;
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uint64_t known_coin_id;
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uint64_t reserve_out_serial_id;
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} recoup;
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struct
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{
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struct TALER_CoinSpendSignatureP coin_sig;
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struct TALER_DenominationBlindingKeyP coin_blind;
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struct TALER_Amount amount;
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struct GNUNET_TIME_Absolute timestamp;
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uint64_t known_coin_id;
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uint64_t rrc_serial;
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} recoup_refresh;
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} details;
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};
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/**
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* Function called on data to replicate in the auditor's database.
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*
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* @param cls closure
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* @param td record from an exchange table
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* @return #GNUNET_OK to continue to iterate,
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* #GNUNET_SYSERR to fail with an error
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*/
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typedef int
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(*TALER_EXCHANGEDB_ReplicationCallback)(
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void *cls,
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const struct TALER_EXCHANGEDB_TableData *td);
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/**
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* @brief All information about a denomination key (which is used to
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* sign coins into existence).
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*/
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struct TALER_EXCHANGEDB_DenominationKey
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{
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/**
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* The private key of the denomination. Will be NULL if the private
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* key is not available (this is the case after the key has expired
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* for signing coins, but is still valid for depositing coins).
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*/
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struct TALER_DenominationPrivateKey denom_priv;
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/**
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* Decoded denomination public key (the hash of it is in
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* @e issue, but we sometimes need the full public key as well).
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*/
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struct TALER_DenominationPublicKey denom_pub;
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/**
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* Signed public information about a denomination key.
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*/
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struct TALER_EXCHANGEDB_DenominationKeyInformationP issue;
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};
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/**
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* @brief Information we keep on bank transfer(s) that established a reserve.
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*/
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struct TALER_EXCHANGEDB_BankTransfer
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{
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/**
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* Public key of the reserve that was filled.
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*/
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struct TALER_ReservePublicKeyP reserve_pub;
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/**
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* Amount that was transferred to the exchange.
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*/
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struct TALER_Amount amount;
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/**
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* When did the exchange receive the incoming transaction?
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* (This is the execution date of the exchange's database,
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* the execution date of the bank should be in @e wire).
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*/
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struct GNUNET_TIME_Absolute execution_date;
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/**
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* Detailed wire information about the sending account
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* in "payto://" format.
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*/
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char *sender_account_details;
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/**
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* Data uniquely identifying the wire transfer (wire transfer-type specific)
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*/
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uint64_t wire_reference;
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};
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/**
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* @brief Information we keep on bank transfer(s) that
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* closed a reserve.
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*/
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struct TALER_EXCHANGEDB_ClosingTransfer
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{
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/**
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* Public key of the reserve that was depleted.
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*/
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struct TALER_ReservePublicKeyP reserve_pub;
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/**
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* Amount that was transferred to the exchange.
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*/
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struct TALER_Amount amount;
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/**
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* Amount that was charged by the exchange.
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*/
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struct TALER_Amount closing_fee;
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/**
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* When did the exchange execute the transaction?
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*/
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struct GNUNET_TIME_Absolute execution_date;
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/**
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* Detailed wire information about the receiving account
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* in payto://-format.
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*/
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char *receiver_account_details;
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/**
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* Detailed wire transfer information that uniquely identifies the
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* wire transfer.
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*/
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struct TALER_WireTransferIdentifierRawP wtid;
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};
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/**
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* @brief A summary of a Reserve
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*/
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struct TALER_EXCHANGEDB_Reserve
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{
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/**
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* The reserve's public key. This uniquely identifies the reserve
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*/
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struct TALER_ReservePublicKeyP pub;
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/**
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* The balance amount existing in the reserve
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*/
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struct TALER_Amount balance;
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/**
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* The expiration date of this reserve; funds will be wired back
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* at this time.
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*/
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struct GNUNET_TIME_Absolute expiry;
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/**
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* The legal expiration date of this reserve; we will forget about
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* it at this time.
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*/
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struct GNUNET_TIME_Absolute gc;
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};
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/**
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* Meta data about a denomination public key.
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*/
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struct TALER_EXCHANGEDB_DenominationKeyMetaData
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{
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/**
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* Start time of the validity period for this key.
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*/
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struct GNUNET_TIME_Absolute start;
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/**
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* The exchange will sign fresh coins between @e start and this time.
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* @e expire_withdraw will be somewhat larger than @e start to
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* ensure a sufficiently large anonymity set, while also allowing
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* the Exchange to limit the financial damage in case of a key being
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* compromised. Thus, exchanges with low volume are expected to have a
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* longer withdraw period (@e expire_withdraw - @e start) than exchanges
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* with high transaction volume. The period may also differ between
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* types of coins. A exchange may also have a few denomination keys
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* with the same value with overlapping validity periods, to address
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* issues such as clock skew.
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*/
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struct GNUNET_TIME_Absolute expire_withdraw;
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/**
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* Coins signed with the denomination key must be spent or refreshed
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* between @e start and this expiration time. After this time, the
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* exchange will refuse transactions involving this key as it will
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* "drop" the table with double-spending information (shortly after)
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* this time. Note that wallets should refresh coins significantly
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* before this time to be on the safe side. @e expire_deposit must be
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* significantly larger than @e expire_withdraw (by months or even
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* years).
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*/
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struct GNUNET_TIME_Absolute expire_deposit;
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/**
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* When do signatures with this denomination key become invalid?
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|
* After this point, these signatures cannot be used in (legal)
|
|
* disputes anymore, as the Exchange is then allowed to destroy its side
|
|
* of the evidence. @e expire_legal is expected to be significantly
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* larger than @e expire_deposit (by a year or more).
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*/
|
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struct GNUNET_TIME_Absolute expire_legal;
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|
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/**
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* The value of the coins signed with this denomination key.
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*/
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struct TALER_Amount value;
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/**
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* The fee the exchange charges when a coin of this type is withdrawn.
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* (can be zero).
|
|
*/
|
|
struct TALER_Amount fee_withdraw;
|
|
|
|
/**
|
|
* The fee the exchange charges when a coin of this type is deposited.
|
|
* (can be zero).
|
|
*/
|
|
struct TALER_Amount fee_deposit;
|
|
|
|
/**
|
|
* The fee the exchange charges when a coin of this type is refreshed.
|
|
* (can be zero).
|
|
*/
|
|
struct TALER_Amount fee_refresh;
|
|
|
|
/**
|
|
* The fee the exchange charges when a coin of this type is refunded.
|
|
* (can be zero). Note that refund fees are charged to the customer;
|
|
* if a refund is given, the deposit fee is also refunded.
|
|
*/
|
|
struct TALER_Amount fee_refund;
|
|
|
|
};
|
|
|
|
|
|
/**
|
|
* Signature of a function called with information about the exchange's
|
|
* denomination keys.
|
|
*
|
|
* @param cls closure with a `struct TEH_KeyStateHandle *`
|
|
* @param denom_pub public key of the denomination
|
|
* @param h_denom_pub hash of @a denom_pub
|
|
* @param meta meta data information about the denomination type (value, expirations, fees)
|
|
* @param master_sig master signature affirming the validity of this denomination
|
|
* @param recoup_possible true if the key was revoked and clients can currently recoup
|
|
* coins of this denomination
|
|
*/
|
|
typedef void
|
|
(*TALER_EXCHANGEDB_DenominationsCallback)(
|
|
void *cls,
|
|
const struct TALER_DenominationPublicKey *denom_pub,
|
|
const struct GNUNET_HashCode *h_denom_pub,
|
|
const struct TALER_EXCHANGEDB_DenominationKeyMetaData *meta,
|
|
const struct TALER_MasterSignatureP *master_sig,
|
|
bool recoup_possible);
|
|
|
|
|
|
/**
|
|
* Signature of a function called with information about the exchange's
|
|
* online signing keys.
|
|
*
|
|
* @param cls closure with a `struct TEH_KeyStateHandle *`
|
|
* @param exchange_pub public key of the exchange
|
|
* @param meta meta data information about the signing type (expirations)
|
|
* @param master_sig master signature affirming the validity of this denomination
|
|
*/
|
|
typedef void
|
|
(*TALER_EXCHANGEDB_ActiveSignkeysCallback)(
|
|
void *cls,
|
|
const struct TALER_ExchangePublicKeyP *exchange_pub,
|
|
const struct TALER_EXCHANGEDB_SignkeyMetaData *meta,
|
|
const struct TALER_MasterSignatureP *master_sig);
|
|
|
|
|
|
/**
|
|
* Function called with information about the exchange's auditors.
|
|
*
|
|
* @param cls closure with a `struct TEH_KeyStateHandle *`
|
|
* @param auditor_pub the public key of the auditor
|
|
* @param auditor_url URL of the REST API of the auditor
|
|
* @param auditor_name human readable official name of the auditor
|
|
*/
|
|
typedef void
|
|
(*TALER_EXCHANGEDB_AuditorsCallback)(
|
|
void *cls,
|
|
const struct TALER_AuditorPublicKeyP *auditor_pub,
|
|
const char *auditor_url,
|
|
const char *auditor_name);
|
|
|
|
|
|
/**
|
|
* Function called with information about the denominations
|
|
* audited by the exchange's auditors.
|
|
*
|
|
* @param cls closure with a `struct TEH_KeyStateHandle *`
|
|
* @param auditor_pub the public key of an auditor
|
|
* @param h_denom_pub hash of a denomination key audited by this auditor
|
|
* @param auditor_sig signature from the auditor affirming this
|
|
*/
|
|
typedef void
|
|
(*TALER_EXCHANGEDB_AuditorDenominationsCallback)(
|
|
void *cls,
|
|
const struct TALER_AuditorPublicKeyP *auditor_pub,
|
|
const struct GNUNET_HashCode *h_denom_pub,
|
|
const struct TALER_AuditorSignatureP *auditor_sig);
|
|
|
|
|
|
/**
|
|
* @brief Information we keep for a withdrawn coin to reproduce
|
|
* the /withdraw operation if needed, and to have proof
|
|
* that a reserve was drained by this amount.
|
|
*/
|
|
struct TALER_EXCHANGEDB_CollectableBlindcoin
|
|
{
|
|
|
|
/**
|
|
* Our signature over the (blinded) coin.
|
|
*/
|
|
struct TALER_DenominationSignature sig;
|
|
|
|
/**
|
|
* Hash of the denomination key (which coin was generated).
|
|
*/
|
|
struct GNUNET_HashCode denom_pub_hash;
|
|
|
|
/**
|
|
* Value of the coin being exchangeed (matching the denomination key)
|
|
* plus the transaction fee. We include this in what is being
|
|
* signed so that we can verify a reserve's remaining total balance
|
|
* without needing to access the respective denomination key
|
|
* information each time.
|
|
*/
|
|
struct TALER_Amount amount_with_fee;
|
|
|
|
/**
|
|
* Withdrawal fee charged by the exchange. This must match the Exchange's
|
|
* denomination key's withdrawal fee. If the client puts in an
|
|
* invalid withdrawal fee (too high or too low) that does not match
|
|
* the Exchange's denomination key, the withdraw operation is invalid
|
|
* and will be rejected by the exchange. The @e amount_with_fee minus
|
|
* the @e withdraw_fee is must match the value of the generated
|
|
* coin. We include this in what is being signed so that we can
|
|
* verify a exchange's accounting without needing to access the
|
|
* respective denomination key information each time.
|
|
*/
|
|
struct TALER_Amount withdraw_fee;
|
|
|
|
/**
|
|
* Public key of the reserve that was drained.
|
|
*/
|
|
struct TALER_ReservePublicKeyP reserve_pub;
|
|
|
|
/**
|
|
* Hash over the blinded message, needed to verify
|
|
* the @e reserve_sig.
|
|
*/
|
|
struct GNUNET_HashCode h_coin_envelope;
|
|
|
|
/**
|
|
* Signature confirming the withdrawal, matching @e reserve_pub,
|
|
* @e denom_pub and @e h_coin_envelope.
|
|
*/
|
|
struct TALER_ReserveSignatureP reserve_sig;
|
|
};
|
|
|
|
|
|
/**
|
|
* Information the exchange records about a recoup request
|
|
* in a reserve history.
|
|
*/
|
|
struct TALER_EXCHANGEDB_Recoup
|
|
{
|
|
|
|
/**
|
|
* Information about the coin that was paid back.
|
|
*/
|
|
struct TALER_CoinPublicInfo coin;
|
|
|
|
/**
|
|
* Blinding factor supplied to prove to the exchange that
|
|
* the coin came from this reserve.
|
|
*/
|
|
struct TALER_DenominationBlindingKeyP coin_blind;
|
|
|
|
/**
|
|
* Signature of the coin of type
|
|
* #TALER_SIGNATURE_WALLET_COIN_RECOUP.
|
|
*/
|
|
struct TALER_CoinSpendSignatureP coin_sig;
|
|
|
|
/**
|
|
* Public key of the reserve the coin was paid back into.
|
|
*/
|
|
struct TALER_ReservePublicKeyP reserve_pub;
|
|
|
|
/**
|
|
* How much was the coin still worth at this time?
|
|
*/
|
|
struct TALER_Amount value;
|
|
|
|
/**
|
|
* When did the recoup operation happen?
|
|
*/
|
|
struct GNUNET_TIME_Absolute timestamp;
|
|
|
|
};
|
|
|
|
|
|
/**
|
|
* Information the exchange records about a recoup request
|
|
* in a coin history.
|
|
*/
|
|
struct TALER_EXCHANGEDB_RecoupListEntry
|
|
{
|
|
|
|
/**
|
|
* Blinding factor supplied to prove to the exchange that
|
|
* the coin came from this reserve.
|
|
*/
|
|
struct TALER_DenominationBlindingKeyP coin_blind;
|
|
|
|
/**
|
|
* Signature of the coin of type
|
|
* #TALER_SIGNATURE_WALLET_COIN_RECOUP.
|
|
*/
|
|
struct TALER_CoinSpendSignatureP coin_sig;
|
|
|
|
/**
|
|
* Hash of the public denomination key used to sign the coin.
|
|
*/
|
|
struct GNUNET_HashCode h_denom_pub;
|
|
|
|
/**
|
|
* Public key of the reserve the coin was paid back into.
|
|
*/
|
|
struct TALER_ReservePublicKeyP reserve_pub;
|
|
|
|
/**
|
|
* How much was the coin still worth at this time?
|
|
*/
|
|
struct TALER_Amount value;
|
|
|
|
/**
|
|
* When did the /recoup operation happen?
|
|
*/
|
|
struct GNUNET_TIME_Absolute timestamp;
|
|
|
|
};
|
|
|
|
|
|
/**
|
|
* Information the exchange records about a recoup-refresh request in
|
|
* a coin transaction history.
|
|
*/
|
|
struct TALER_EXCHANGEDB_RecoupRefreshListEntry
|
|
{
|
|
|
|
/**
|
|
* Information about the coin that was paid back
|
|
* (NOT the coin we are considering the history of!)
|
|
*/
|
|
struct TALER_CoinPublicInfo coin;
|
|
|
|
/**
|
|
* Blinding factor supplied to prove to the exchange that
|
|
* the coin came from this @e old_coin_pub.
|
|
*/
|
|
struct TALER_DenominationBlindingKeyP coin_blind;
|
|
|
|
/**
|
|
* Signature of the coin of type
|
|
* #TALER_SIGNATURE_WALLET_COIN_RECOUP.
|
|
*/
|
|
struct TALER_CoinSpendSignatureP coin_sig;
|
|
|
|
/**
|
|
* Public key of the old coin that the refreshed coin was paid back to.
|
|
*/
|
|
struct TALER_CoinSpendPublicKeyP old_coin_pub;
|
|
|
|
/**
|
|
* How much was the coin still worth at this time?
|
|
*/
|
|
struct TALER_Amount value;
|
|
|
|
/**
|
|
* When did the recoup operation happen?
|
|
*/
|
|
struct GNUNET_TIME_Absolute timestamp;
|
|
|
|
};
|
|
|
|
|
|
/**
|
|
* @brief Types of operations on a reserve.
|
|
*/
|
|
enum TALER_EXCHANGEDB_ReserveOperation
|
|
{
|
|
/**
|
|
* Money was deposited into the reserve via a bank transfer.
|
|
* This is how customers establish a reserve at the exchange.
|
|
*/
|
|
TALER_EXCHANGEDB_RO_BANK_TO_EXCHANGE = 0,
|
|
|
|
/**
|
|
* A Coin was withdrawn from the reserve using /withdraw.
|
|
*/
|
|
TALER_EXCHANGEDB_RO_WITHDRAW_COIN = 1,
|
|
|
|
/**
|
|
* A coin was returned to the reserve using /recoup.
|
|
*/
|
|
TALER_EXCHANGEDB_RO_RECOUP_COIN = 2,
|
|
|
|
/**
|
|
* The exchange send inactive funds back from the reserve to the
|
|
* customer's bank account. This happens when the exchange
|
|
* closes a reserve with a non-zero amount left in it.
|
|
*/
|
|
TALER_EXCHANGEDB_RO_EXCHANGE_TO_BANK = 3
|
|
};
|
|
|
|
|
|
/**
|
|
* @brief Reserve history as a linked list. Lists all of the transactions
|
|
* associated with this reserve (such as the bank transfers that
|
|
* established the reserve and all /withdraw operations we have done
|
|
* since).
|
|
*/
|
|
struct TALER_EXCHANGEDB_ReserveHistory
|
|
{
|
|
|
|
/**
|
|
* Next entry in the reserve history.
|
|
*/
|
|
struct TALER_EXCHANGEDB_ReserveHistory *next;
|
|
|
|
/**
|
|
* Type of the event, determines @e details.
|
|
*/
|
|
enum TALER_EXCHANGEDB_ReserveOperation type;
|
|
|
|
/**
|
|
* Details of the operation, depending on @e type.
|
|
*/
|
|
union
|
|
{
|
|
|
|
/**
|
|
* Details about a bank transfer to the exchange (reserve
|
|
* was established).
|
|
*/
|
|
struct TALER_EXCHANGEDB_BankTransfer *bank;
|
|
|
|
/**
|
|
* Details about a /withdraw operation.
|
|
*/
|
|
struct TALER_EXCHANGEDB_CollectableBlindcoin *withdraw;
|
|
|
|
/**
|
|
* Details about a /recoup operation.
|
|
*/
|
|
struct TALER_EXCHANGEDB_Recoup *recoup;
|
|
|
|
/**
|
|
* Details about a bank transfer from the exchange (reserve
|
|
* was closed).
|
|
*/
|
|
struct TALER_EXCHANGEDB_ClosingTransfer *closing;
|
|
|
|
} details;
|
|
|
|
};
|
|
|
|
|
|
/**
|
|
* @brief Data from a deposit operation. The combination of
|
|
* the coin's public key, the merchant's public key and the
|
|
* transaction ID must be unique. While a coin can (theoretically) be
|
|
* deposited at the same merchant twice (with partial spending), the
|
|
* merchant must either use a different public key or a different
|
|
* transaction ID for the two transactions. The same coin must not
|
|
* be used twice at the same merchant for the same transaction
|
|
* (as determined by transaction ID).
|
|
*/
|
|
struct TALER_EXCHANGEDB_Deposit
|
|
{
|
|
/**
|
|
* Information about the coin that is being deposited.
|
|
*/
|
|
struct TALER_CoinPublicInfo coin;
|
|
|
|
/**
|
|
* ECDSA signature affirming that the customer intends
|
|
* this coin to be deposited at the merchant identified
|
|
* by @e h_wire in relation to the proposal data identified
|
|
* by @e h_contract_terms.
|
|
*/
|
|
struct TALER_CoinSpendSignatureP csig;
|
|
|
|
/**
|
|
* Public key of the merchant. Enables later identification
|
|
* of the merchant in case of a need to rollback transactions.
|
|
*/
|
|
struct TALER_MerchantPublicKeyP merchant_pub;
|
|
|
|
/**
|
|
* Hash over the proposa data between merchant and customer
|
|
* (remains unknown to the Exchange).
|
|
*/
|
|
struct GNUNET_HashCode h_contract_terms;
|
|
|
|
/**
|
|
* Hash of the (canonical) representation of @e wire, used
|
|
* to check the signature on the request. Generated by
|
|
* the exchange from the detailed wire data provided by the
|
|
* merchant.
|
|
*/
|
|
struct GNUNET_HashCode h_wire;
|
|
|
|
/**
|
|
* Detailed information about the receiver for executing the transaction.
|
|
* Includes URL in payto://-format and salt.
|
|
*/
|
|
json_t *receiver_wire_account;
|
|
|
|
/**
|
|
* Time when this request was generated. Used, for example, to
|
|
* assess when (roughly) the income was achieved for tax purposes.
|
|
* Note that the Exchange will only check that the timestamp is not "too
|
|
* far" into the future (i.e. several days). The fact that the
|
|
* timestamp falls within the validity period of the coin's
|
|
* denomination key is irrelevant for the validity of the deposit
|
|
* request, as obviously the customer and merchant could conspire to
|
|
* set any timestamp. Also, the Exchange must accept very old deposit
|
|
* requests, as the merchant might have been unable to transmit the
|
|
* deposit request in a timely fashion (so back-dating is not
|
|
* prevented).
|
|
*/
|
|
struct GNUNET_TIME_Absolute timestamp;
|
|
|
|
/**
|
|
* How much time does the merchant have to issue a refund request?
|
|
* Zero if refunds are not allowed. After this time, the coin
|
|
* cannot be refunded.
|
|
*/
|
|
struct GNUNET_TIME_Absolute refund_deadline;
|
|
|
|
/**
|
|
* How much time does the merchant have to execute the wire transfer?
|
|
* This time is advisory for aggregating transactions, not a hard
|
|
* constraint (as the merchant can theoretically pick any time,
|
|
* including one in the past).
|
|
*/
|
|
struct GNUNET_TIME_Absolute wire_deadline;
|
|
|
|
/**
|
|
* Fraction of the coin's remaining value to be deposited, including
|
|
* depositing fee (if any). The coin is identified by @e coin_pub.
|
|
*/
|
|
struct TALER_Amount amount_with_fee;
|
|
|
|
/**
|
|
* Depositing fee.
|
|
*/
|
|
struct TALER_Amount deposit_fee;
|
|
|
|
};
|
|
|
|
|
|
/**
|
|
* @brief Specification for a deposit operation in the
|
|
* `struct TALER_EXCHANGEDB_TransactionList`.
|
|
*/
|
|
struct TALER_EXCHANGEDB_DepositListEntry
|
|
{
|
|
|
|
/**
|
|
* ECDSA signature affirming that the customer intends
|
|
* this coin to be deposited at the merchant identified
|
|
* by @e h_wire in relation to the proposal data identified
|
|
* by @e h_contract_terms.
|
|
*/
|
|
struct TALER_CoinSpendSignatureP csig;
|
|
|
|
/**
|
|
* Public key of the merchant. Enables later identification
|
|
* of the merchant in case of a need to rollback transactions.
|
|
*/
|
|
struct TALER_MerchantPublicKeyP merchant_pub;
|
|
|
|
/**
|
|
* Hash over the proposa data between merchant and customer
|
|
* (remains unknown to the Exchange).
|
|
*/
|
|
struct GNUNET_HashCode h_contract_terms;
|
|
|
|
/**
|
|
* Hash of the (canonical) representation of @e wire, used
|
|
* to check the signature on the request. Generated by
|
|
* the exchange from the detailed wire data provided by the
|
|
* merchant.
|
|
*/
|
|
struct GNUNET_HashCode h_wire;
|
|
|
|
/**
|
|
* Hash of the public denomination key used to sign the coin.
|
|
*/
|
|
struct GNUNET_HashCode h_denom_pub;
|
|
|
|
/**
|
|
* Detailed information about the receiver for executing the transaction.
|
|
* Includes URL in payto://-format and salt.
|
|
*/
|
|
json_t *receiver_wire_account;
|
|
|
|
/**
|
|
* Time when this request was generated. Used, for example, to
|
|
* assess when (roughly) the income was achieved for tax purposes.
|
|
* Note that the Exchange will only check that the timestamp is not "too
|
|
* far" into the future (i.e. several days). The fact that the
|
|
* timestamp falls within the validity period of the coin's
|
|
* denomination key is irrelevant for the validity of the deposit
|
|
* request, as obviously the customer and merchant could conspire to
|
|
* set any timestamp. Also, the Exchange must accept very old deposit
|
|
* requests, as the merchant might have been unable to transmit the
|
|
* deposit request in a timely fashion (so back-dating is not
|
|
* prevented).
|
|
*/
|
|
struct GNUNET_TIME_Absolute timestamp;
|
|
|
|
/**
|
|
* How much time does the merchant have to issue a refund request?
|
|
* Zero if refunds are not allowed. After this time, the coin
|
|
* cannot be refunded.
|
|
*/
|
|
struct GNUNET_TIME_Absolute refund_deadline;
|
|
|
|
/**
|
|
* How much time does the merchant have to execute the wire transfer?
|
|
* This time is advisory for aggregating transactions, not a hard
|
|
* constraint (as the merchant can theoretically pick any time,
|
|
* including one in the past).
|
|
*/
|
|
struct GNUNET_TIME_Absolute wire_deadline;
|
|
|
|
/**
|
|
* Fraction of the coin's remaining value to be deposited, including
|
|
* depositing fee (if any). The coin is identified by @e coin_pub.
|
|
*/
|
|
struct TALER_Amount amount_with_fee;
|
|
|
|
/**
|
|
* Depositing fee.
|
|
*/
|
|
struct TALER_Amount deposit_fee;
|
|
|
|
/**
|
|
* Has the deposit been wired?
|
|
*/
|
|
bool done;
|
|
|
|
};
|
|
|
|
|
|
/**
|
|
* @brief Specification for a refund operation in a coin's transaction list.
|
|
*/
|
|
struct TALER_EXCHANGEDB_RefundListEntry
|
|
{
|
|
|
|
/**
|
|
* Public key of the merchant.
|
|
*/
|
|
struct TALER_MerchantPublicKeyP merchant_pub;
|
|
|
|
/**
|
|
* Signature from the merchant affirming the refund.
|
|
*/
|
|
struct TALER_MerchantSignatureP merchant_sig;
|
|
|
|
/**
|
|
* Hash over the proposal data between merchant and customer
|
|
* (remains unknown to the Exchange).
|
|
*/
|
|
struct GNUNET_HashCode h_contract_terms;
|
|
|
|
/**
|
|
* Merchant-generated REFUND transaction ID to detect duplicate
|
|
* refunds.
|
|
*/
|
|
uint64_t rtransaction_id;
|
|
|
|
/**
|
|
* Fraction of the original deposit's value to be refunded, including
|
|
* refund fee (if any). The coin is identified by @e coin_pub.
|
|
*/
|
|
struct TALER_Amount refund_amount;
|
|
|
|
/**
|
|
* Refund fee to be covered by the customer.
|
|
*/
|
|
struct TALER_Amount refund_fee;
|
|
|
|
};
|
|
|
|
|
|
/**
|
|
* @brief Specification for a refund operation. The combination of
|
|
* the coin's public key, the merchant's public key and the
|
|
* transaction ID must be unique. While a coin can (theoretically) be
|
|
* deposited at the same merchant twice (with partial spending), the
|
|
* merchant must either use a different public key or a different
|
|
* transaction ID for the two transactions. The same goes for
|
|
* refunds, hence we also have a "rtransaction" ID which is disjoint
|
|
* from the transaction ID. The same coin must not be used twice at
|
|
* the same merchant for the same transaction or rtransaction ID.
|
|
*/
|
|
struct TALER_EXCHANGEDB_Refund
|
|
{
|
|
/**
|
|
* Information about the coin that is being refunded.
|
|
*/
|
|
struct TALER_CoinPublicInfo coin;
|
|
|
|
/**
|
|
* Details about the refund.
|
|
*/
|
|
struct TALER_EXCHANGEDB_RefundListEntry details;
|
|
|
|
};
|
|
|
|
|
|
/**
|
|
* @brief Specification for coin in a melt operation.
|
|
*/
|
|
struct TALER_EXCHANGEDB_Refresh
|
|
{
|
|
/**
|
|
* Information about the coin that is being melted.
|
|
*/
|
|
struct TALER_CoinPublicInfo coin;
|
|
|
|
/**
|
|
* Signature over the melting operation.
|
|
*/
|
|
struct TALER_CoinSpendSignatureP coin_sig;
|
|
|
|
/**
|
|
* Refresh commitment this coin is melted into.
|
|
*/
|
|
struct TALER_RefreshCommitmentP rc;
|
|
|
|
/**
|
|
* How much value is being melted? This amount includes the fees,
|
|
* so the final amount contributed to the melt is this value minus
|
|
* the fee for melting the coin. We include the fee in what is
|
|
* being signed so that we can verify a reserve's remaining total
|
|
* balance without needing to access the respective denomination key
|
|
* information each time.
|
|
*/
|
|
struct TALER_Amount amount_with_fee;
|
|
|
|
/**
|
|
* Index (smaller #TALER_CNC_KAPPA) which the exchange has chosen to not
|
|
* have revealed during cut and choose.
|
|
*/
|
|
uint32_t noreveal_index;
|
|
|
|
};
|
|
|
|
|
|
/**
|
|
* Information about a /coins/$COIN_PUB/melt operation in a coin transaction history.
|
|
*/
|
|
struct TALER_EXCHANGEDB_MeltListEntry
|
|
{
|
|
|
|
/**
|
|
* Signature over the melting operation.
|
|
*/
|
|
struct TALER_CoinSpendSignatureP coin_sig;
|
|
|
|
/**
|
|
* Refresh commitment this coin is melted into.
|
|
*/
|
|
struct TALER_RefreshCommitmentP rc;
|
|
|
|
/**
|
|
* Hash of the public denomination key used to sign the coin.
|
|
*/
|
|
struct GNUNET_HashCode h_denom_pub;
|
|
|
|
/**
|
|
* How much value is being melted? This amount includes the fees,
|
|
* so the final amount contributed to the melt is this value minus
|
|
* the fee for melting the coin. We include the fee in what is
|
|
* being signed so that we can verify a reserve's remaining total
|
|
* balance without needing to access the respective denomination key
|
|
* information each time.
|
|
*/
|
|
struct TALER_Amount amount_with_fee;
|
|
|
|
/**
|
|
* Melt fee the exchange charged.
|
|
*/
|
|
struct TALER_Amount melt_fee;
|
|
|
|
/**
|
|
* Index (smaller #TALER_CNC_KAPPA) which the exchange has chosen to not
|
|
* have revealed during cut and choose.
|
|
*/
|
|
uint32_t noreveal_index;
|
|
|
|
};
|
|
|
|
|
|
/**
|
|
* Information about a melt operation.
|
|
*/
|
|
struct TALER_EXCHANGEDB_Melt
|
|
{
|
|
|
|
/**
|
|
* Overall session data.
|
|
*/
|
|
struct TALER_EXCHANGEDB_Refresh session;
|
|
|
|
/**
|
|
* Melt fee the exchange charged.
|
|
*/
|
|
struct TALER_Amount melt_fee;
|
|
|
|
};
|
|
|
|
|
|
/**
|
|
* @brief Linked list of refresh information linked to a coin.
|
|
*/
|
|
struct TALER_EXCHANGEDB_LinkList
|
|
{
|
|
/**
|
|
* Information is stored in a NULL-terminated linked list.
|
|
*/
|
|
struct TALER_EXCHANGEDB_LinkList *next;
|
|
|
|
/**
|
|
* Denomination public key, determines the value of the coin.
|
|
*/
|
|
struct TALER_DenominationPublicKey denom_pub;
|
|
|
|
/**
|
|
* Signature over the blinded envelope.
|
|
*/
|
|
struct TALER_DenominationSignature ev_sig;
|
|
|
|
/**
|
|
* Signature of the original coin being refreshed over the
|
|
* link data, of type #TALER_SIGNATURE_WALLET_COIN_LINK
|
|
*/
|
|
struct TALER_CoinSpendSignatureP orig_coin_link_sig;
|
|
|
|
};
|
|
|
|
|
|
/**
|
|
* @brief Enumeration to classify the different types of transactions
|
|
* that can be done with a coin.
|
|
*/
|
|
enum TALER_EXCHANGEDB_TransactionType
|
|
{
|
|
|
|
/**
|
|
* Deposit operation.
|
|
*/
|
|
TALER_EXCHANGEDB_TT_DEPOSIT = 0,
|
|
|
|
/**
|
|
* Melt operation.
|
|
*/
|
|
TALER_EXCHANGEDB_TT_MELT = 1,
|
|
|
|
/**
|
|
* Refund operation.
|
|
*/
|
|
TALER_EXCHANGEDB_TT_REFUND = 2,
|
|
|
|
/**
|
|
* Recoup-refresh operation (on the old coin, adding to the old coin's value)
|
|
*/
|
|
TALER_EXCHANGEDB_TT_OLD_COIN_RECOUP = 3,
|
|
|
|
/**
|
|
* Recoup operation.
|
|
*/
|
|
TALER_EXCHANGEDB_TT_RECOUP = 4,
|
|
|
|
/**
|
|
* Recoup-refresh operation (on the new coin, eliminating its value)
|
|
*/
|
|
TALER_EXCHANGEDB_TT_RECOUP_REFRESH = 5
|
|
|
|
};
|
|
|
|
|
|
/**
|
|
* @brief List of transactions we performed for a particular coin.
|
|
*/
|
|
struct TALER_EXCHANGEDB_TransactionList
|
|
{
|
|
|
|
/**
|
|
* Next pointer in the NULL-terminated linked list.
|
|
*/
|
|
struct TALER_EXCHANGEDB_TransactionList *next;
|
|
|
|
/**
|
|
* Type of the transaction, determines what is stored in @e details.
|
|
*/
|
|
enum TALER_EXCHANGEDB_TransactionType type;
|
|
|
|
/**
|
|
* Serial ID of this entry in the database.
|
|
*/
|
|
uint64_t serial_id;
|
|
|
|
/**
|
|
* Details about the transaction, depending on @e type.
|
|
*/
|
|
union
|
|
{
|
|
|
|
/**
|
|
* Details if transaction was a deposit operation.
|
|
* (#TALER_EXCHANGEDB_TT_DEPOSIT)
|
|
*/
|
|
struct TALER_EXCHANGEDB_DepositListEntry *deposit;
|
|
|
|
/**
|
|
* Details if transaction was a melt operation.
|
|
* (#TALER_EXCHANGEDB_TT_MELT)
|
|
*/
|
|
struct TALER_EXCHANGEDB_MeltListEntry *melt;
|
|
|
|
/**
|
|
* Details if transaction was a refund operation.
|
|
* (#TALER_EXCHANGEDB_TT_REFUND)
|
|
*/
|
|
struct TALER_EXCHANGEDB_RefundListEntry *refund;
|
|
|
|
/**
|
|
* Details if transaction was a recoup-refund operation where
|
|
* this coin was the OLD coin.
|
|
* (#TALER_EXCHANGEDB_TT_OLD_COIN_RECOUP).
|
|
*/
|
|
struct TALER_EXCHANGEDB_RecoupRefreshListEntry *old_coin_recoup;
|
|
|
|
/**
|
|
* Details if transaction was a recoup operation.
|
|
* (#TALER_EXCHANGEDB_TT_RECOUP)
|
|
*/
|
|
struct TALER_EXCHANGEDB_RecoupListEntry *recoup;
|
|
|
|
/**
|
|
* Details if transaction was a recoup-refund operation where
|
|
* this coin was the REFRESHED coin.
|
|
* (#TALER_EXCHANGEDB_TT_RECOUP_REFRESH)
|
|
*/
|
|
struct TALER_EXCHANGEDB_RecoupRefreshListEntry *recoup_refresh;
|
|
|
|
} details;
|
|
|
|
};
|
|
|
|
|
|
/**
|
|
* @brief Handle for a database session (per-thread, for transactions).
|
|
*/
|
|
struct TALER_EXCHANGEDB_Session;
|
|
|
|
|
|
/**
|
|
* Function called with details about deposits that have been made,
|
|
* with the goal of executing the corresponding wire transaction.
|
|
*
|
|
* @param cls closure
|
|
* @param rowid unique ID for the deposit in our DB, used for marking
|
|
* it as 'tiny' or 'done'
|
|
* @param coin_pub public key of the coin
|
|
* @param amount_with_fee amount that was deposited including fee
|
|
* @param deposit_fee amount the exchange gets to keep as transaction fees
|
|
* @param h_contract_terms hash of the proposal data known to merchant and customer
|
|
* @return transaction status code, #GNUNET_DB_STATUS_SUCCESS_ONE_RESULT to continue to iterate
|
|
*/
|
|
typedef enum GNUNET_DB_QueryStatus
|
|
(*TALER_EXCHANGEDB_MatchingDepositIterator)(
|
|
void *cls,
|
|
uint64_t rowid,
|
|
const struct TALER_CoinSpendPublicKeyP *coin_pub,
|
|
const struct TALER_Amount *amount_with_fee,
|
|
const struct TALER_Amount *deposit_fee,
|
|
const struct GNUNET_HashCode *h_contract_terms);
|
|
|
|
|
|
/**
|
|
* Function called with details about deposits that have been made,
|
|
* with the goal of executing the corresponding wire transaction.
|
|
*
|
|
* @param cls closure
|
|
* @param rowid unique ID for the deposit in our DB, used for marking
|
|
* it as 'tiny' or 'done'
|
|
* @param exchange_timestamp when did the exchange receive the deposit
|
|
* @param wallet_timestamp when did the wallet sign the contract
|
|
* @param merchant_pub public key of the merchant
|
|
* @param coin_pub public key of the coin
|
|
* @param amount_with_fee amount that was deposited including fee
|
|
* @param deposit_fee amount the exchange gets to keep as transaction fees
|
|
* @param h_contract_terms hash of the proposal data known to merchant and customer
|
|
* @param wire_deadline by which the merchant advised that he would like the
|
|
* wire transfer to be executed
|
|
* @param receiver_wire_account wire details for the merchant, includes
|
|
* 'url' in payto://-format;
|
|
* @return transaction status code, #GNUNET_DB_STATUS_SUCCESS_ONE_RESULT to continue to iterate
|
|
*/
|
|
typedef enum GNUNET_DB_QueryStatus
|
|
(*TALER_EXCHANGEDB_DepositIterator)(
|
|
void *cls,
|
|
uint64_t rowid,
|
|
struct GNUNET_TIME_Absolute exchange_timestamp,
|
|
struct GNUNET_TIME_Absolute wallet_timestamp,
|
|
const struct TALER_MerchantPublicKeyP *merchant_pub,
|
|
const struct TALER_CoinSpendPublicKeyP *coin_pub,
|
|
const struct TALER_Amount *amount_with_fee,
|
|
const struct TALER_Amount *deposit_fee,
|
|
const struct GNUNET_HashCode *h_contract_terms,
|
|
struct GNUNET_TIME_Absolute wire_deadline,
|
|
const json_t *receiver_wire_account);
|
|
|
|
|
|
/**
|
|
* Callback with data about a prepared wire transfer.
|
|
*
|
|
* @param cls closure
|
|
* @param rowid row identifier used to mark prepared transaction as done
|
|
* @param wire_method which wire method is this preparation data for
|
|
* @param buf transaction data that was persisted, NULL on error
|
|
* @param buf_size number of bytes in @a buf, 0 on error
|
|
*/
|
|
typedef void
|
|
(*TALER_EXCHANGEDB_WirePreparationIterator) (void *cls,
|
|
uint64_t rowid,
|
|
const char *wire_method,
|
|
const char *buf,
|
|
size_t buf_size);
|
|
|
|
|
|
/**
|
|
* Function called with details about deposits that have been made,
|
|
* with the goal of auditing the deposit's execution.
|
|
*
|
|
* @param cls closure
|
|
* @param rowid unique serial ID for the deposit in our DB
|
|
* @param exchange_timestamp when did the deposit happen
|
|
* @param wallet_timestamp when did the contract happen
|
|
* @param merchant_pub public key of the merchant
|
|
* @param denom_pub denomination public key of @a coin_pub
|
|
* @param coin_pub public key of the coin
|
|
* @param coin_sig signature from the coin
|
|
* @param amount_with_fee amount that was deposited including fee
|
|
* @param h_contract_terms hash of the proposal data known to merchant and customer
|
|
* @param refund_deadline by which the merchant advised that he might want
|
|
* to get a refund
|
|
* @param wire_deadline by which the merchant advised that he would like the
|
|
* wire transfer to be executed
|
|
* @param receiver_wire_account wire details for the merchant including 'url' in payto://-format;
|
|
* NULL from iterate_matching_deposits()
|
|
* @param done flag set if the deposit was already executed (or not)
|
|
* @return #GNUNET_OK to continue to iterate, #GNUNET_SYSERR to stop
|
|
*/
|
|
typedef int
|
|
(*TALER_EXCHANGEDB_DepositCallback)(
|
|
void *cls,
|
|
uint64_t rowid,
|
|
struct GNUNET_TIME_Absolute exchange_timestamp,
|
|
struct GNUNET_TIME_Absolute wallet_timestamp,
|
|
const struct TALER_MerchantPublicKeyP *merchant_pub,
|
|
const struct TALER_DenominationPublicKey *denom_pub,
|
|
const struct TALER_CoinSpendPublicKeyP *coin_pub,
|
|
const struct TALER_CoinSpendSignatureP *coin_sig,
|
|
const struct TALER_Amount *amount_with_fee,
|
|
const struct GNUNET_HashCode *h_contract_terms,
|
|
struct GNUNET_TIME_Absolute refund_deadline,
|
|
struct GNUNET_TIME_Absolute wire_deadline,
|
|
const json_t *receiver_wire_account,
|
|
int done);
|
|
|
|
|
|
/**
|
|
* Function called with details about coins that were melted,
|
|
* with the goal of auditing the refresh's execution.
|
|
*
|
|
* @param cls closure
|
|
* @param rowid unique serial ID for the refresh session in our DB
|
|
* @param denom_pub denomination public key of @a coin_pub
|
|
* @param coin_pub public key of the coin
|
|
* @param coin_sig signature from the coin
|
|
* @param amount_with_fee amount that was deposited including fee
|
|
* @param noreveal_index which index was picked by the exchange in cut-and-choose
|
|
* @param rc what is the commitment
|
|
* @return #GNUNET_OK to continue to iterate, #GNUNET_SYSERR to stop
|
|
*/
|
|
typedef int
|
|
(*TALER_EXCHANGEDB_RefreshesCallback)(
|
|
void *cls,
|
|
uint64_t rowid,
|
|
const struct TALER_DenominationPublicKey *denom_pub,
|
|
const struct TALER_CoinSpendPublicKeyP *coin_pub,
|
|
const struct TALER_CoinSpendSignatureP *coin_sig,
|
|
const struct TALER_Amount *amount_with_fee,
|
|
uint32_t noreveal_index,
|
|
const struct TALER_RefreshCommitmentP *rc);
|
|
|
|
|
|
/**
|
|
* Callback invoked with information about refunds applicable
|
|
* to a particular coin and contract.
|
|
*
|
|
* @param cls closure
|
|
* @param amount_with_fee amount being refunded
|
|
* @return #GNUNET_OK to continue to iterate, #GNUNET_SYSERR to stop
|
|
*/
|
|
typedef int
|
|
(*TALER_EXCHANGEDB_RefundCoinCallback)(
|
|
void *cls,
|
|
const struct TALER_Amount *amount_with_fee);
|
|
|
|
|
|
/**
|
|
* Information about a coin that was revealed to the exchange
|
|
* during reveal.
|
|
*/
|
|
struct TALER_EXCHANGEDB_RefreshRevealedCoin
|
|
{
|
|
/**
|
|
* Public denomination key of the coin.
|
|
*/
|
|
struct TALER_DenominationPublicKey denom_pub;
|
|
|
|
/**
|
|
* Signature of the original coin being refreshed over the
|
|
* link data, of type #TALER_SIGNATURE_WALLET_COIN_LINK
|
|
*/
|
|
struct TALER_CoinSpendSignatureP orig_coin_link_sig;
|
|
|
|
/**
|
|
* Blinded message to be signed (in envelope), with @e coin_env_size bytes.
|
|
*/
|
|
char *coin_ev;
|
|
|
|
/**
|
|
* Number of bytes in @e coin_ev.
|
|
*/
|
|
size_t coin_ev_size;
|
|
|
|
/**
|
|
* Signature generated by the exchange over the coin (in blinded format).
|
|
*/
|
|
struct TALER_DenominationSignature coin_sig;
|
|
};
|
|
|
|
|
|
/**
|
|
* Function called with information about a refresh order.
|
|
*
|
|
* @param cls closure
|
|
* @param num_freshcoins size of the @a rrcs array
|
|
* @param rrcs array of @a num_freshcoins information about coins to be created
|
|
* @param num_tprivs number of entries in @a tprivs, should be #TALER_CNC_KAPPA - 1
|
|
* @param tprivs array of @e num_tprivs transfer private keys
|
|
* @param tp transfer public key information
|
|
*/
|
|
typedef void
|
|
(*TALER_EXCHANGEDB_RefreshCallback)(
|
|
void *cls,
|
|
uint32_t num_freshcoins,
|
|
const struct TALER_EXCHANGEDB_RefreshRevealedCoin *rrcs,
|
|
unsigned int num_tprivs,
|
|
const struct TALER_TransferPrivateKeyP *tprivs,
|
|
const struct TALER_TransferPublicKeyP *tp);
|
|
|
|
|
|
/**
|
|
* Function called with details about coins that were refunding,
|
|
* with the goal of auditing the refund's execution.
|
|
*
|
|
* @param cls closure
|
|
* @param rowid unique serial ID for the refund in our DB
|
|
* @param denom_pub denomination public key of @a coin_pub
|
|
* @param coin_pub public key of the coin
|
|
* @param merchant_pub public key of the merchant
|
|
* @param merchant_sig signature of the merchant
|
|
* @param h_contract_terms hash of the proposal data known to merchant and customer
|
|
* @param rtransaction_id refund transaction ID chosen by the merchant
|
|
* @param amount_with_fee amount that was deposited including fee
|
|
* @return #GNUNET_OK to continue to iterate, #GNUNET_SYSERR to stop
|
|
*/
|
|
typedef int
|
|
(*TALER_EXCHANGEDB_RefundCallback)(
|
|
void *cls,
|
|
uint64_t rowid,
|
|
const struct TALER_DenominationPublicKey *denom_pub,
|
|
const struct TALER_CoinSpendPublicKeyP *coin_pub,
|
|
const struct TALER_MerchantPublicKeyP *merchant_pub,
|
|
const struct TALER_MerchantSignatureP *merchant_sig,
|
|
const struct GNUNET_HashCode *h_contract_terms,
|
|
uint64_t rtransaction_id,
|
|
const struct TALER_Amount *amount_with_fee);
|
|
|
|
|
|
/**
|
|
* Function called with details about incoming wire transfers.
|
|
*
|
|
* @param cls closure
|
|
* @param rowid unique serial ID for the refresh session in our DB
|
|
* @param reserve_pub public key of the reserve (also the wire subject)
|
|
* @param credit amount that was received
|
|
* @param sender_account_details information about the sender's bank account, in payto://-format
|
|
* @param wire_reference unique identifier for the wire transfer
|
|
* @param execution_date when did we receive the funds
|
|
* @return #GNUNET_OK to continue to iterate, #GNUNET_SYSERR to stop
|
|
*/
|
|
typedef int
|
|
(*TALER_EXCHANGEDB_ReserveInCallback)(
|
|
void *cls,
|
|
uint64_t rowid,
|
|
const struct TALER_ReservePublicKeyP *reserve_pub,
|
|
const struct TALER_Amount *credit,
|
|
const char *sender_account_details,
|
|
uint64_t wire_reference,
|
|
struct GNUNET_TIME_Absolute execution_date);
|
|
|
|
|
|
/**
|
|
* Provide information about a wire account.
|
|
*
|
|
* @param cls closure
|
|
* @param payto_uri the exchange bank account URI
|
|
* @param master_sig master key signature affirming that this is a bank
|
|
* account of the exchange (of purpose #TALER_SIGNATURE_MASTER_WIRE_DETAILS)
|
|
*/
|
|
typedef void
|
|
(*TALER_EXCHANGEDB_WireAccountCallback)(
|
|
void *cls,
|
|
const char *payto_uri,
|
|
const struct TALER_MasterSignatureP *master_sig);
|
|
|
|
|
|
/**
|
|
* Provide information about wire fees.
|
|
*
|
|
* @param cls closure
|
|
* @param wire_fee the wire fee we charge
|
|
* @param closing_fee the closing fee we charge
|
|
* @param start_date from when are these fees valid (start date)
|
|
* @param end_date until when are these fees valid (end date, exclusive)
|
|
* @param master_sig master key signature affirming that this is the correct
|
|
* fee (of purpose #TALER_SIGNATURE_MASTER_WIRE_FEES)
|
|
*/
|
|
typedef void
|
|
(*TALER_EXCHANGEDB_WireFeeCallback)(
|
|
void *cls,
|
|
const struct TALER_Amount *wire_fee,
|
|
const struct TALER_Amount *closing_fee,
|
|
struct GNUNET_TIME_Absolute start_date,
|
|
struct GNUNET_TIME_Absolute end_date,
|
|
const struct TALER_MasterSignatureP *master_sig);
|
|
|
|
|
|
/**
|
|
* Function called with details about withdraw operations.
|
|
*
|
|
* @param cls closure
|
|
* @param rowid unique serial ID for the refresh session in our DB
|
|
* @param h_blind_ev blinded hash of the coin's public key
|
|
* @param denom_pub public denomination key of the deposited coin
|
|
* @param reserve_pub public key of the reserve
|
|
* @param reserve_sig signature over the withdraw operation
|
|
* @param execution_date when did the wallet withdraw the coin
|
|
* @param amount_with_fee amount that was withdrawn
|
|
* @return #GNUNET_OK to continue to iterate, #GNUNET_SYSERR to stop
|
|
*/
|
|
typedef int
|
|
(*TALER_EXCHANGEDB_WithdrawCallback)(
|
|
void *cls,
|
|
uint64_t rowid,
|
|
const struct GNUNET_HashCode *h_blind_ev,
|
|
const struct TALER_DenominationPublicKey *denom_pub,
|
|
const struct TALER_ReservePublicKeyP *reserve_pub,
|
|
const struct TALER_ReserveSignatureP *reserve_sig,
|
|
struct GNUNET_TIME_Absolute execution_date,
|
|
const struct TALER_Amount *amount_with_fee);
|
|
|
|
|
|
/**
|
|
* Function called with the session hashes and transfer secret
|
|
* information for a given coin.
|
|
*
|
|
* @param cls closure
|
|
* @param transfer_pub public transfer key for the session
|
|
* @param ldl link data for @a transfer_pub
|
|
*/
|
|
typedef void
|
|
(*TALER_EXCHANGEDB_LinkCallback)(
|
|
void *cls,
|
|
const struct TALER_TransferPublicKeyP *transfer_pub,
|
|
const struct TALER_EXCHANGEDB_LinkList *ldl);
|
|
|
|
|
|
/**
|
|
* Function called with the results of the lookup of the wire transfer
|
|
* identifier information. Only called if we are at least aware of the
|
|
* transaction existing.
|
|
*
|
|
* @param cls closure
|
|
* @param wtid wire transfer identifier, NULL
|
|
* if the transaction was not yet done
|
|
* @param coin_contribution how much did the coin we asked about
|
|
* contribute to the total transfer value? (deposit value including fee)
|
|
* @param coin_fee how much did the exchange charge for the deposit fee
|
|
* @param execution_time when was the transaction done, or
|
|
* when we expect it to be done (if @a wtid was NULL)
|
|
*/
|
|
typedef void
|
|
(*TALER_EXCHANGEDB_WireTransferByCoinCallback)(
|
|
void *cls,
|
|
const struct TALER_WireTransferIdentifierRawP *wtid,
|
|
const struct TALER_Amount *coin_contribution,
|
|
const struct TALER_Amount *coin_fee,
|
|
struct GNUNET_TIME_Absolute execution_time);
|
|
|
|
|
|
/**
|
|
* Function called with the results of the lookup of the
|
|
* transaction data associated with a wire transfer identifier.
|
|
*
|
|
* @param cls closure
|
|
* @param rowid which row in the table is the information from (for diagnostics)
|
|
* @param merchant_pub public key of the merchant (should be same for all callbacks with the same @e cls)
|
|
* @param h_wire hash of wire transfer details of the merchant (should be same for all callbacks with the same @e cls)
|
|
* @param account_details which account did the transfer go to?
|
|
* @param exec_time execution time of the wire transfer (should be same for all callbacks with the same @e cls)
|
|
* @param h_contract_terms which proposal was this payment about
|
|
* @param denom_pub denomination of @a coin_pub
|
|
* @param coin_pub which public key was this payment about
|
|
* @param coin_value amount contributed by this coin in total (with fee)
|
|
* @param coin_fee applicable fee for this coin
|
|
*/
|
|
typedef void
|
|
(*TALER_EXCHANGEDB_AggregationDataCallback)(
|
|
void *cls,
|
|
uint64_t rowid,
|
|
const struct TALER_MerchantPublicKeyP *merchant_pub,
|
|
const struct GNUNET_HashCode *h_wire,
|
|
const json_t *account_details,
|
|
struct GNUNET_TIME_Absolute exec_time,
|
|
const struct GNUNET_HashCode *h_contract_terms,
|
|
const struct TALER_DenominationPublicKey *denom_pub,
|
|
const struct TALER_CoinSpendPublicKeyP *coin_pub,
|
|
const struct TALER_Amount *coin_value,
|
|
const struct TALER_Amount *coin_fee);
|
|
|
|
|
|
/**
|
|
* Function called with the results of the lookup of the
|
|
* wire transfer data of the exchange.
|
|
*
|
|
* @param cls closure
|
|
* @param rowid identifier of the respective row in the database
|
|
* @param date timestamp of the wire transfer (roughly)
|
|
* @param wtid wire transfer subject
|
|
* @param wire wire transfer details of the receiver, including "url" in payto://-format
|
|
* @param amount amount that was wired
|
|
* @return #GNUNET_OK to continue, #GNUNET_SYSERR to stop iteration
|
|
*/
|
|
typedef int
|
|
(*TALER_EXCHANGEDB_WireTransferOutCallback)(
|
|
void *cls,
|
|
uint64_t rowid,
|
|
struct GNUNET_TIME_Absolute date,
|
|
const struct TALER_WireTransferIdentifierRawP *wtid,
|
|
const json_t *wire,
|
|
const struct TALER_Amount *amount);
|
|
|
|
|
|
/**
|
|
* Callback with data about a prepared wire transfer.
|
|
*
|
|
* @param cls closure
|
|
* @param rowid row identifier used to mark prepared transaction as done
|
|
* @param wire_method which wire method is this preparation data for
|
|
* @param buf transaction data that was persisted, NULL on error
|
|
* @param buf_size number of bytes in @a buf, 0 on error
|
|
* @param finished did we complete the transfer yet?
|
|
* @return #GNUNET_OK to continue, #GNUNET_SYSERR to stop iteration
|
|
*/
|
|
typedef int
|
|
(*TALER_EXCHANGEDB_WirePreparationCallback)(void *cls,
|
|
uint64_t rowid,
|
|
const char *wire_method,
|
|
const char *buf,
|
|
size_t buf_size,
|
|
int finished);
|
|
|
|
|
|
/**
|
|
* Function called about recoups the exchange has to perform.
|
|
*
|
|
* @param cls closure
|
|
* @param rowid row identifier used to uniquely identify the recoup operation
|
|
* @param timestamp when did we receive the recoup request
|
|
* @param amount how much should be added back to the reserve
|
|
* @param reserve_pub public key of the reserve
|
|
* @param coin public information about the coin
|
|
* @param denom_pub denomination key of @a coin
|
|
* @param coin_sig signature with @e coin_pub of type #TALER_SIGNATURE_WALLET_COIN_RECOUP
|
|
* @param coin_blind blinding factor used to blind the coin
|
|
* @return #GNUNET_OK to continue to iterate, #GNUNET_SYSERR to stop
|
|
*/
|
|
typedef int
|
|
(*TALER_EXCHANGEDB_RecoupCallback)(
|
|
void *cls,
|
|
uint64_t rowid,
|
|
struct GNUNET_TIME_Absolute timestamp,
|
|
const struct TALER_Amount *amount,
|
|
const struct TALER_ReservePublicKeyP *reserve_pub,
|
|
const struct TALER_CoinPublicInfo *coin,
|
|
const struct TALER_DenominationPublicKey *denom_pub,
|
|
const struct TALER_CoinSpendSignatureP *coin_sig,
|
|
const struct TALER_DenominationBlindingKeyP *coin_blind);
|
|
|
|
|
|
/**
|
|
* Function called about recoups on refreshed coins the exchange has to
|
|
* perform.
|
|
*
|
|
* @param cls closure
|
|
* @param rowid row identifier used to uniquely identify the recoup operation
|
|
* @param timestamp when did we receive the recoup request
|
|
* @param amount how much should be added back to the reserve
|
|
* @param old_coin_pub original coin that was refreshed to create @a coin
|
|
* @param old_denom_pub_hash hash of public key of @a old_coin_pub
|
|
* @param coin public information about the coin
|
|
* @param denom_pub denomination key of @a coin
|
|
* @param coin_sig signature with @e coin_pub of type #TALER_SIGNATURE_WALLET_COIN_RECOUP
|
|
* @param coin_blind blinding factor used to blind the coin
|
|
* @return #GNUNET_OK to continue to iterate, #GNUNET_SYSERR to stop
|
|
*/
|
|
typedef int
|
|
(*TALER_EXCHANGEDB_RecoupRefreshCallback)(
|
|
void *cls,
|
|
uint64_t rowid,
|
|
struct GNUNET_TIME_Absolute timestamp,
|
|
const struct TALER_Amount *amount,
|
|
const struct TALER_CoinSpendPublicKeyP *old_coin_pub,
|
|
const struct GNUNET_HashCode *old_denom_pub_hash,
|
|
const struct TALER_CoinPublicInfo *coin,
|
|
const struct TALER_DenominationPublicKey *denom_pub,
|
|
const struct TALER_CoinSpendSignatureP *coin_sig,
|
|
const struct TALER_DenominationBlindingKeyP *coin_blind);
|
|
|
|
|
|
/**
|
|
* Function called about reserve closing operations
|
|
* the aggregator triggered.
|
|
*
|
|
* @param cls closure
|
|
* @param rowid row identifier used to uniquely identify the reserve closing operation
|
|
* @param execution_date when did we execute the close operation
|
|
* @param amount_with_fee how much did we debit the reserve
|
|
* @param closing_fee how much did we charge for closing the reserve
|
|
* @param reserve_pub public key of the reserve
|
|
* @param receiver_account where did we send the funds, in payto://-format
|
|
* @param wtid identifier used for the wire transfer
|
|
* @return #GNUNET_OK to continue to iterate, #GNUNET_SYSERR to stop
|
|
*/
|
|
typedef int
|
|
(*TALER_EXCHANGEDB_ReserveClosedCallback)(
|
|
void *cls,
|
|
uint64_t rowid,
|
|
struct GNUNET_TIME_Absolute execution_date,
|
|
const struct TALER_Amount *amount_with_fee,
|
|
const struct TALER_Amount *closing_fee,
|
|
const struct TALER_ReservePublicKeyP *reserve_pub,
|
|
const char *receiver_account,
|
|
const struct TALER_WireTransferIdentifierRawP *wtid);
|
|
|
|
|
|
/**
|
|
* Function called with details about expired reserves.
|
|
*
|
|
* @param cls closure
|
|
* @param reserve_pub public key of the reserve
|
|
* @param left amount left in the reserve
|
|
* @param account_details information about the reserve's bank account, in payto://-format
|
|
* @param expiration_date when did the reserve expire
|
|
* @return transaction status code to pass on
|
|
*/
|
|
typedef enum GNUNET_DB_QueryStatus
|
|
(*TALER_EXCHANGEDB_ReserveExpiredCallback)(
|
|
void *cls,
|
|
const struct TALER_ReservePublicKeyP *reserve_pub,
|
|
const struct TALER_Amount *left,
|
|
const char *account_details,
|
|
struct GNUNET_TIME_Absolute expiration_date);
|
|
|
|
|
|
/**
|
|
* Function called with information justifying an aggregate recoup.
|
|
* (usually implemented by the auditor when verifying losses from recoups).
|
|
*
|
|
* @param cls closure
|
|
* @param rowid row identifier used to uniquely identify the recoup operation
|
|
* @param coin information about the coin
|
|
* @param coin_sig signature of the coin of type #TALER_SIGNATURE_WALLET_COIN_RECOUP
|
|
* @param coin_blind blinding key of the coin
|
|
* @param h_blinded_ev blinded envelope, as calculated by the exchange
|
|
* @param amount total amount to be paid back
|
|
*/
|
|
typedef void
|
|
(*TALER_EXCHANGEDB_RecoupJustificationCallback)(
|
|
void *cls,
|
|
uint64_t rowid,
|
|
const struct TALER_CoinPublicInfo *coin,
|
|
const struct TALER_CoinSpendSignatureP *coin_sig,
|
|
const struct TALER_DenominationBlindingKeyP *coin_blind,
|
|
const struct GNUNET_HashCode *h_blinded_ev,
|
|
const struct TALER_Amount *amount);
|
|
|
|
|
|
/**
|
|
* Function called on deposits that are past their due date
|
|
* and have not yet seen a wire transfer.
|
|
*
|
|
* @param cls closure
|
|
* @param rowid deposit table row of the coin's deposit
|
|
* @param coin_pub public key of the coin
|
|
* @param amount value of the deposit, including fee
|
|
* @param wire where should the funds be wired, including 'url' in payto://-format
|
|
* @param deadline what was the requested wire transfer deadline
|
|
* @param tiny did the exchange defer this transfer because it is too small?
|
|
* @param done did the exchange claim that it made a transfer?
|
|
*/
|
|
typedef void
|
|
(*TALER_EXCHANGEDB_WireMissingCallback)(
|
|
void *cls,
|
|
uint64_t rowid,
|
|
const struct TALER_CoinSpendPublicKeyP *coin_pub,
|
|
const struct TALER_Amount *amount,
|
|
const json_t *wire,
|
|
struct GNUNET_TIME_Absolute deadline,
|
|
/* bool? */ int tiny,
|
|
/* bool? */ int done);
|
|
|
|
|
|
/**
|
|
* Function called with information about the exchange's denomination keys.
|
|
* Note that the 'master' field in @a issue will not yet be initialized when
|
|
* this function is called!
|
|
*
|
|
* @param cls closure
|
|
* @param denom_pub public key of the denomination
|
|
* @param issue detailed information about the denomination (value, expiration times, fees);
|
|
*/
|
|
typedef void
|
|
(*TALER_EXCHANGEDB_DenominationCallback)(
|
|
void *cls,
|
|
const struct TALER_DenominationPublicKey *denom_pub,
|
|
const struct TALER_EXCHANGEDB_DenominationKeyInformationP *issue);
|
|
|
|
|
|
/**
|
|
* @brief The plugin API, returned from the plugin's "init" function.
|
|
* The argument given to "init" is simply a configuration handle.
|
|
*/
|
|
struct TALER_EXCHANGEDB_Plugin
|
|
{
|
|
|
|
/**
|
|
* Closure for all callbacks.
|
|
*/
|
|
void *cls;
|
|
|
|
/**
|
|
* Name of the library which generated this plugin. Set by the
|
|
* plugin loader.
|
|
*/
|
|
char *library_name;
|
|
|
|
/**
|
|
* Get the thread-local (!) database-handle.
|
|
* Connect to the db if the connection does not exist yet.
|
|
*
|
|
* @param cls the @e cls of this struct with the plugin-specific state
|
|
* @returns the database connection, or NULL on error
|
|
*/
|
|
struct TALER_EXCHANGEDB_Session *
|
|
(*get_session) (void *cls);
|
|
|
|
|
|
/**
|
|
* Drop the Taler tables. This should only be used in testcases.
|
|
*
|
|
* @param cls the @e cls of this struct with the plugin-specific state
|
|
* @return #GNUNET_OK upon success; #GNUNET_SYSERR upon failure
|
|
*/
|
|
int
|
|
(*drop_tables) (void *cls);
|
|
|
|
|
|
/**
|
|
* Create the necessary tables if they are not present
|
|
*
|
|
* @param cls the @e cls of this struct with the plugin-specific state
|
|
* @return #GNUNET_OK upon success; #GNUNET_SYSERR upon failure
|
|
*/
|
|
int
|
|
(*create_tables) (void *cls);
|
|
|
|
|
|
/**
|
|
* Start a transaction.
|
|
*
|
|
* @param cls the @e cls of this struct with the plugin-specific state
|
|
* @param session connection to use
|
|
* @param name unique name identifying the transaction (for debugging),
|
|
* must point to a constant
|
|
* @return #GNUNET_OK on success
|
|
*/
|
|
int
|
|
(*start) (void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session,
|
|
const char *name);
|
|
|
|
|
|
/**
|
|
* Commit a transaction.
|
|
*
|
|
* @param cls the @e cls of this struct with the plugin-specific state
|
|
* @param session connection to use
|
|
* @return transaction status
|
|
*/
|
|
enum GNUNET_DB_QueryStatus
|
|
(*commit)(void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session);
|
|
|
|
|
|
/**
|
|
* Do a pre-flight check that we are not in an uncommitted transaction.
|
|
* If we are, try to commit the previous transaction and output a warning.
|
|
* Does not return anything, as we will continue regardless of the outcome.
|
|
*
|
|
* @param cls the `struct PostgresClosure` with the plugin-specific state
|
|
* @param session the database connection
|
|
*/
|
|
void
|
|
(*preflight) (void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session);
|
|
|
|
|
|
/**
|
|
* Abort/rollback a transaction.
|
|
*
|
|
* @param cls the @e cls of this struct with the plugin-specific state
|
|
* @param session connection to use
|
|
*/
|
|
void
|
|
(*rollback) (void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session);
|
|
|
|
|
|
/**
|
|
* Insert information about a denomination key and in particular
|
|
* the properties (value, fees, expiration times) the coins signed
|
|
* with this key have.
|
|
*
|
|
* @param cls the @e cls of this struct with the plugin-specific state
|
|
* @param session connection to use
|
|
* @param denom_pub the public key used for signing coins of this denomination
|
|
* @param issue issuing information with value, fees and other info about the denomination
|
|
* @return status of the query
|
|
*/
|
|
enum GNUNET_DB_QueryStatus
|
|
(*insert_denomination_info)(
|
|
void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session,
|
|
const struct TALER_DenominationPublicKey *denom_pub,
|
|
const struct TALER_EXCHANGEDB_DenominationKeyInformationP *issue);
|
|
|
|
|
|
/**
|
|
* Fetch information about a denomination key.
|
|
*
|
|
* @param cls the @e cls of this struct with the plugin-specific state
|
|
* @param session connection to use
|
|
* @param denom_pub_hash hash of the public key used for signing coins of this denomination
|
|
* @param[out] issue set to issue information with value, fees and other info about the coin
|
|
* @return transaction status code
|
|
*/
|
|
enum GNUNET_DB_QueryStatus
|
|
(*get_denomination_info)(
|
|
void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session,
|
|
const struct GNUNET_HashCode *denom_pub_hash,
|
|
struct TALER_EXCHANGEDB_DenominationKeyInformationP *issue);
|
|
|
|
|
|
/**
|
|
* Function called on every known denomination key. Runs in its
|
|
* own read-only transaction (hence no session provided). Note that
|
|
* the "master" field in the callback's 'issue' argument will NOT
|
|
* be initialized yet.
|
|
*
|
|
* @param cls the @e cls of this struct with the plugin-specific state
|
|
* @param session session to use
|
|
* @param cb function to call on each denomination key
|
|
* @param cb_cls closure for @a cb
|
|
* @return transaction status code
|
|
*/
|
|
enum GNUNET_DB_QueryStatus
|
|
(*iterate_denomination_info)(void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session,
|
|
TALER_EXCHANGEDB_DenominationCallback cb,
|
|
void *cb_cls);
|
|
|
|
|
|
/**
|
|
* Function called to invoke @a cb on every known denomination key (revoked
|
|
* and non-revoked) that has been signed by the master key. Runs in its own
|
|
* read-only transaction (hence no session provided).
|
|
*
|
|
* @param cls the @e cls of this struct with the plugin-specific state
|
|
* @param cb function to call on each denomination key
|
|
* @param cb_cls closure for @a cb
|
|
* @return transaction status code
|
|
*/
|
|
enum GNUNET_DB_QueryStatus
|
|
(*iterate_denominations)(void *cls,
|
|
TALER_EXCHANGEDB_DenominationsCallback cb,
|
|
void *cb_cls);
|
|
|
|
/**
|
|
* Function called to invoke @a cb on every non-revoked exchange signing key
|
|
* that has been signed by the master key. Revoked and (for signing!)
|
|
* expired keys are skipped. Runs in its own read-only transaction (hence no
|
|
* session provided).
|
|
*
|
|
* @param cls the @e cls of this struct with the plugin-specific state
|
|
* @param cb function to call on each signing key
|
|
* @param cb_cls closure for @a cb
|
|
* @return transaction status code
|
|
*/
|
|
enum GNUNET_DB_QueryStatus
|
|
(*iterate_active_signkeys)(void *cls,
|
|
TALER_EXCHANGEDB_ActiveSignkeysCallback cb,
|
|
void *cb_cls);
|
|
|
|
|
|
/**
|
|
* Function called to invoke @a cb on every active auditor. Disabled
|
|
* auditors are skipped. Runs in its own read-only transaction (hence no
|
|
* session provided).
|
|
*
|
|
* @param cls the @e cls of this struct with the plugin-specific state
|
|
* @param cb function to call on each active auditor
|
|
* @param cb_cls closure for @a cb
|
|
* @return transaction status code
|
|
*/
|
|
enum GNUNET_DB_QueryStatus
|
|
(*iterate_active_auditors)(void *cls,
|
|
TALER_EXCHANGEDB_AuditorsCallback cb,
|
|
void *cb_cls);
|
|
|
|
|
|
/**
|
|
* Function called to invoke @a cb on every denomination with an active
|
|
* auditor. Disabled auditors and denominations without auditor are
|
|
* skipped. Runs in its own read-only transaction (hence no session
|
|
* provided).
|
|
*
|
|
* @param cls the @e cls of this struct with the plugin-specific state
|
|
* @param cb function to call on each active auditor-denomination pair
|
|
* @param cb_cls closure for @a cb
|
|
* @return transaction status code
|
|
*/
|
|
enum GNUNET_DB_QueryStatus
|
|
(*iterate_auditor_denominations)(
|
|
void *cls,
|
|
TALER_EXCHANGEDB_AuditorDenominationsCallback cb,
|
|
void *cb_cls);
|
|
|
|
|
|
/**
|
|
* Get the summary of a reserve.
|
|
*
|
|
* @param cls the @e cls of this struct with the plugin-specific state
|
|
* @param session the database connection handle
|
|
* @param[in,out] reserve the reserve data. The public key of the reserve should be set
|
|
* in this structure; it is used to query the database. The balance
|
|
* and expiration are then filled accordingly.
|
|
* @return transaction status
|
|
*/
|
|
enum GNUNET_DB_QueryStatus
|
|
(*reserves_get)(void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session,
|
|
struct TALER_EXCHANGEDB_Reserve *reserve);
|
|
|
|
|
|
/**
|
|
* Insert a incoming transaction into reserves. New reserves are
|
|
* also created through this function.
|
|
*
|
|
* @param cls the @e cls of this struct with the plugin-specific state
|
|
* @param session the database session handle
|
|
* @param reserve_pub public key of the reserve
|
|
* @param balance the amount that has to be added to the reserve
|
|
* @param execution_time when was the amount added
|
|
* @param sender_account_details information about the sender's bank account, in payto://-format
|
|
* @param wire_reference unique reference identifying the wire transfer
|
|
* @return transaction status code
|
|
*/
|
|
enum GNUNET_DB_QueryStatus
|
|
(*reserves_in_insert)(void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session,
|
|
const struct TALER_ReservePublicKeyP *reserve_pub,
|
|
const struct TALER_Amount *balance,
|
|
struct GNUNET_TIME_Absolute execution_time,
|
|
const char *sender_account_details,
|
|
const char *exchange_account_name,
|
|
uint64_t wire_reference);
|
|
|
|
|
|
/**
|
|
* Obtain the most recent @a wire_reference that was inserted via @e reserves_in_insert.
|
|
* Used by the wirewatch process when resuming.
|
|
*
|
|
* @param cls the @e cls of this struct with the plugin-specific state
|
|
* @param session the database connection handle
|
|
* @param exchange_account_name name of the section in the exchange's configuration
|
|
* for the account that we are tracking here
|
|
* @param[out] wire_reference set to unique reference identifying the wire transfer
|
|
* @return transaction status code
|
|
*/
|
|
enum GNUNET_DB_QueryStatus
|
|
(*get_latest_reserve_in_reference)(void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session,
|
|
const char *exchange_account_name,
|
|
uint64_t *wire_reference);
|
|
|
|
|
|
/**
|
|
* Locate the response for a withdraw request under the
|
|
* key of the hash of the blinded message. Used to ensure
|
|
* idempotency of the request.
|
|
*
|
|
* @param cls the @e cls of this struct with the plugin-specific state
|
|
* @param session database connection to use
|
|
* @param h_blind hash of the blinded coin to be signed (will match
|
|
* `h_coin_envelope` in the @a collectable to be returned)
|
|
* @param collectable corresponding collectable coin (blind signature)
|
|
* if a coin is found
|
|
* @return statement execution status
|
|
*/
|
|
enum GNUNET_DB_QueryStatus
|
|
(*get_withdraw_info)(void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session,
|
|
const struct GNUNET_HashCode *h_blind,
|
|
struct TALER_EXCHANGEDB_CollectableBlindcoin *collectable);
|
|
|
|
|
|
/**
|
|
* Store collectable coin under the corresponding hash of the blinded
|
|
* message.
|
|
*
|
|
* @param cls the @e cls of this struct with the plugin-specific state
|
|
* @param session database connection to use
|
|
* @param collectable corresponding collectable coin (blind signature)
|
|
* if a coin is found
|
|
* @return statement execution status
|
|
*/
|
|
enum GNUNET_DB_QueryStatus
|
|
(*insert_withdraw_info)(void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session,
|
|
const struct
|
|
TALER_EXCHANGEDB_CollectableBlindcoin *collectable);
|
|
|
|
|
|
/**
|
|
* Get all of the transaction history associated with the specified
|
|
* reserve.
|
|
*
|
|
* @param cls the @e cls of this struct with the plugin-specific state
|
|
* @param session connection to use
|
|
* @param reserve_pub public key of the reserve
|
|
* @param[out] rhp set to known transaction history (NULL if reserve is unknown)
|
|
* @return transaction status
|
|
*/
|
|
enum GNUNET_DB_QueryStatus
|
|
(*get_reserve_history)(void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session,
|
|
const struct TALER_ReservePublicKeyP *reserve_pub,
|
|
struct TALER_EXCHANGEDB_ReserveHistory **rhp);
|
|
|
|
|
|
/**
|
|
* Free memory associated with the given reserve history.
|
|
*
|
|
* @param cls the @e cls of this struct with the plugin-specific state
|
|
* @param rh history to free.
|
|
*/
|
|
void
|
|
(*free_reserve_history) (void *cls,
|
|
struct TALER_EXCHANGEDB_ReserveHistory *rh);
|
|
|
|
|
|
/**
|
|
* Count the number of known coins by denomination.
|
|
*
|
|
* @param cls database connection plugin state
|
|
* @param session database session
|
|
* @param denom_pub_hash denomination to count by
|
|
* @return number of coins if non-negative, otherwise an `enum GNUNET_DB_QueryStatus`
|
|
*/
|
|
long long
|
|
(*count_known_coins) (void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session,
|
|
const struct GNUNET_HashCode *denom_pub_hash);
|
|
|
|
|
|
/**
|
|
* Make sure the given @a coin is known to the database.
|
|
*
|
|
* @param cls database connection plugin state
|
|
* @param session database session
|
|
* @param coin the coin that must be made known
|
|
* @return database transaction status, non-negative on success
|
|
*/
|
|
enum TALER_EXCHANGEDB_CoinKnownStatus
|
|
{
|
|
/**
|
|
* The coin was successfully added.
|
|
*/
|
|
TALER_EXCHANGEDB_CKS_ADDED = 1,
|
|
|
|
/**
|
|
* The coin was already present.
|
|
*/
|
|
TALER_EXCHANGEDB_CKS_PRESENT = 0,
|
|
|
|
/**
|
|
* Serialization failure.
|
|
*/
|
|
TALER_EXCHANGEDB_CKS_SOFT_FAIL = -1,
|
|
|
|
/**
|
|
* Hard database failure.
|
|
*/
|
|
TALER_EXCHANGEDB_CKS_HARD_FAIL = -2,
|
|
|
|
/**
|
|
* Conflicting coin (different denomination key) already in database.
|
|
*/
|
|
TALER_EXCHANGEDB_CKS_CONFLICT = -3,
|
|
}
|
|
(*ensure_coin_known)(void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session,
|
|
const struct TALER_CoinPublicInfo *coin);
|
|
|
|
|
|
/**
|
|
* Retrieve information about the given @a coin from the database.
|
|
*
|
|
* @param cls database connection plugin state
|
|
* @param session database session
|
|
* @param coin the coin that must be made known
|
|
* @return database transaction status, non-negative on success
|
|
*/
|
|
enum GNUNET_DB_QueryStatus
|
|
(*get_known_coin)(void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session,
|
|
const struct TALER_CoinSpendPublicKeyP *coin_pub,
|
|
struct TALER_CoinPublicInfo *coin_info);
|
|
|
|
|
|
/**
|
|
* Retrieve the denomination of a known coin.
|
|
*
|
|
* @param cls the plugin closure
|
|
* @param session the database session handle
|
|
* @param coin_pub the public key of the coin to search for
|
|
* @param[out] denom_hash where to store the hash of the coins denomination
|
|
* @return transaction status code
|
|
*/
|
|
enum GNUNET_DB_QueryStatus
|
|
(*get_coin_denomination)(void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session,
|
|
const struct TALER_CoinSpendPublicKeyP *coin_pub,
|
|
struct GNUNET_HashCode *denom_hash);
|
|
|
|
|
|
/**
|
|
* Check if we have the specified deposit already in the database.
|
|
*
|
|
* @param cls the @e cls of this struct with the plugin-specific state
|
|
* @param session database connection
|
|
* @param deposit deposit to search for
|
|
* @param check_extras whether to check extra fields or not
|
|
* @param[out] deposit_fee set to the deposit fee the exchange charged
|
|
* @param[out] exchange_timestamp set to the time when the exchange received the deposit
|
|
* @return 1 if we know this operation,
|
|
* 0 if this exact deposit is unknown to us,
|
|
* otherwise transaction error status
|
|
*/
|
|
enum GNUNET_DB_QueryStatus
|
|
(*have_deposit)(void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session,
|
|
const struct TALER_EXCHANGEDB_Deposit *deposit,
|
|
int check_extras,
|
|
struct TALER_Amount *deposit_fee,
|
|
struct GNUNET_TIME_Absolute *exchange_timestamp);
|
|
|
|
|
|
/**
|
|
* Insert information about deposited coin into the database.
|
|
*
|
|
* @param cls the @e cls of this struct with the plugin-specific state
|
|
* @param session connection to the database
|
|
* @param exchange_timestamp time the exchange received the deposit request
|
|
* @param deposit deposit information to store
|
|
* @return query result status
|
|
*/
|
|
enum GNUNET_DB_QueryStatus
|
|
(*insert_deposit)(void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session,
|
|
struct GNUNET_TIME_Absolute exchange_timestamp,
|
|
const struct TALER_EXCHANGEDB_Deposit *deposit);
|
|
|
|
|
|
/**
|
|
* Insert information about refunded coin into the database.
|
|
*
|
|
* @param cls the @e cls of this struct with the plugin-specific state
|
|
* @param session connection to the database
|
|
* @param refund refund information to store
|
|
* @return query result status
|
|
*/
|
|
enum GNUNET_DB_QueryStatus
|
|
(*insert_refund)(void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session,
|
|
const struct TALER_EXCHANGEDB_Refund *refund);
|
|
|
|
|
|
/**
|
|
* Select refunds by @a coin_pub, @a merchant_pub and @a h_contract.
|
|
*
|
|
* @param cls closure of plugin
|
|
* @param session database handle to use
|
|
* @param coin_pub coin to get refunds for
|
|
* @param merchant_pub merchant to get refunds for
|
|
* @param h_contract_pub contract (hash) to get refunds for
|
|
* @param cb function to call for each refund found
|
|
* @param cb_cls closure for @a cb
|
|
* @return query result status
|
|
*/
|
|
enum GNUNET_DB_QueryStatus
|
|
(*select_refunds_by_coin)(void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session,
|
|
const struct TALER_CoinSpendPublicKeyP *coin_pub,
|
|
const struct TALER_MerchantPublicKeyP *merchant_pub,
|
|
const struct GNUNET_HashCode *h_contract,
|
|
TALER_EXCHANGEDB_RefundCoinCallback cb,
|
|
void *cb_cls);
|
|
|
|
|
|
/**
|
|
* Mark a deposit as tiny, thereby declaring that it cannot be executed by
|
|
* itself (only included in a larger aggregation) and should no longer be
|
|
* returned by @e iterate_ready_deposits()
|
|
*
|
|
* @param cls the @e cls of this struct with the plugin-specific state
|
|
* @param session connection to the database
|
|
* @param deposit_rowid identifies the deposit row to modify
|
|
* @return query result status
|
|
*/
|
|
enum GNUNET_DB_QueryStatus
|
|
(*mark_deposit_tiny)(void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session,
|
|
uint64_t rowid);
|
|
|
|
|
|
/**
|
|
* Test if a deposit was marked as done, thereby declaring that it
|
|
* cannot be refunded anymore.
|
|
*
|
|
* @param cls the @e cls of this struct with the plugin-specific state
|
|
* @param session connection to the database
|
|
* @param coin_pub the coin to check for deposit
|
|
* @param merchant_pub merchant to receive the deposit
|
|
* @param h_contract_terms contract terms of the deposit
|
|
* @param h_wire hash of the merchant's wire details
|
|
* @return #GNUNET_DB_STATUS_SUCCESS_ONE_RESULT if is is marked done,
|
|
* #GNUNET_DB_STATUS_SUCCESS_NO_RESULTS if not,
|
|
* otherwise transaction error status (incl. deposit unknown)
|
|
*/
|
|
enum GNUNET_DB_QueryStatus
|
|
(*test_deposit_done)(void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session,
|
|
const struct TALER_CoinSpendPublicKeyP *coin_pub,
|
|
const struct TALER_MerchantPublicKeyP *merchant_pub,
|
|
const struct GNUNET_HashCode *h_contract_terms,
|
|
const struct GNUNET_HashCode *h_wire);
|
|
|
|
|
|
/**
|
|
* Mark a deposit as done, thereby declaring that it cannot be
|
|
* executed at all anymore, and should no longer be returned by
|
|
* @e iterate_ready_deposits() or @e iterate_matching_deposits().
|
|
*
|
|
* @param cls the @e cls of this struct with the plugin-specific state
|
|
* @param session connection to the database
|
|
* @param deposit_rowid identifies the deposit row to modify
|
|
* @return query result status
|
|
*/
|
|
enum GNUNET_DB_QueryStatus
|
|
(*mark_deposit_done)(void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session,
|
|
uint64_t rowid);
|
|
|
|
|
|
/**
|
|
* Obtain information about deposits that are ready to be executed.
|
|
* Such deposits must not be marked as "tiny" or "done", and the
|
|
* execution time and refund deadlines must both be in the past.
|
|
*
|
|
* @param cls the @e cls of this struct with the plugin-specific state
|
|
* @param session connection to the database
|
|
* @param deposit_cb function to call for ONE such deposit
|
|
* @param deposit_cb_cls closure for @a deposit_cb
|
|
* @return transaction status code
|
|
*/
|
|
enum GNUNET_DB_QueryStatus
|
|
(*get_ready_deposit)(void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session,
|
|
TALER_EXCHANGEDB_DepositIterator deposit_cb,
|
|
void *deposit_cb_cls);
|
|
|
|
|
|
/**
|
|
* Maximum number of results we return from iterate_matching_deposits().
|
|
*
|
|
* Limit on the number of transactions we aggregate at once. Note
|
|
* that the limit must be big enough to ensure that when transactions
|
|
* of the smallest possible unit are aggregated, they do surpass the
|
|
* "tiny" threshold beyond which we never trigger a wire transaction!
|
|
*/
|
|
#define TALER_EXCHANGEDB_MATCHING_DEPOSITS_LIMIT 10000
|
|
|
|
/**
|
|
* Obtain information about other pending deposits for the same
|
|
* destination. Those deposits must not already be "done".
|
|
*
|
|
* @param cls the @e cls of this struct with the plugin-specific state
|
|
* @param session connection to the database
|
|
* @param h_wire destination of the wire transfer
|
|
* @param merchant_pub public key of the merchant
|
|
* @param deposit_cb function to call for each deposit
|
|
* @param deposit_cb_cls closure for @a deposit_cb
|
|
* @param limit maximum number of matching deposits to return; should
|
|
* be #TALER_EXCHANGEDB_MATCHING_DEPOSITS_LIMIT, larger values
|
|
* are not supported, smaller values would be inefficient.
|
|
* @return number of rows processed, 0 if none exist,
|
|
* transaction status code on error
|
|
*/
|
|
enum GNUNET_DB_QueryStatus
|
|
(*iterate_matching_deposits)(
|
|
void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session,
|
|
const struct GNUNET_HashCode *h_wire,
|
|
const struct TALER_MerchantPublicKeyP *merchant_pub,
|
|
TALER_EXCHANGEDB_MatchingDepositIterator deposit_cb,
|
|
void *deposit_cb_cls,
|
|
uint32_t limit);
|
|
|
|
|
|
/**
|
|
* Store new melt commitment data.
|
|
*
|
|
* @param cls the @e cls of this struct with the plugin-specific state
|
|
* @param session database handle to use
|
|
* @param refresh_session operational data to store
|
|
* @return query status for the transaction
|
|
*/
|
|
enum GNUNET_DB_QueryStatus
|
|
(*insert_melt)(void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session,
|
|
const struct TALER_EXCHANGEDB_Refresh *refresh_session);
|
|
|
|
|
|
/**
|
|
* Lookup melt commitment data under the given @a rc.
|
|
*
|
|
* @param cls the @e cls of this struct with the plugin-specific state
|
|
* @param session database handle to use
|
|
* @param rc commitment to use for the lookup
|
|
* @param[out] melt where to store the result; note that
|
|
* melt->session.coin.denom_sig will be set to NULL
|
|
* and is not fetched by this routine (as it is not needed by the client)
|
|
* @return transaction status
|
|
*/
|
|
enum GNUNET_DB_QueryStatus
|
|
(*get_melt)(void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session,
|
|
const struct TALER_RefreshCommitmentP *rc,
|
|
struct TALER_EXCHANGEDB_Melt *melt);
|
|
|
|
|
|
/**
|
|
* Lookup noreveal index of a previous melt operation under the given
|
|
* @a rc.
|
|
*
|
|
* @param cls the `struct PostgresClosure` with the plugin-specific state
|
|
* @param session database handle to use
|
|
* @param rc commitment hash to use to locate the operation
|
|
* @param[out] noreveal_index returns the "gamma" value selected by the
|
|
* exchange which is the index of the transfer key that is
|
|
* not to be revealed to the exchange
|
|
* @return transaction status
|
|
*/
|
|
enum GNUNET_DB_QueryStatus
|
|
(*get_melt_index)(void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session,
|
|
const struct TALER_RefreshCommitmentP *rc,
|
|
uint32_t *noreveal_index);
|
|
|
|
|
|
/**
|
|
* Store in the database which coin(s) the wallet wanted to create
|
|
* in a given refresh operation and all of the other information
|
|
* we learned or created in the reveal step.
|
|
*
|
|
* @param cls the @e cls of this struct with the plugin-specific state
|
|
* @param session database connection
|
|
* @param rc identify commitment and thus refresh operation
|
|
* @param num_rrcs number of coins to generate, size of the @a rrcs array
|
|
* @param rrcs information about the new coins
|
|
* @param num_tprivs number of entries in @a tprivs, should be #TALER_CNC_KAPPA - 1
|
|
* @param tprivs transfer private keys to store
|
|
* @param tp public key to store
|
|
* @return query status for the transaction
|
|
*/
|
|
enum GNUNET_DB_QueryStatus
|
|
(*insert_refresh_reveal)(
|
|
void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session,
|
|
const struct TALER_RefreshCommitmentP *rc,
|
|
uint32_t num_rrcs,
|
|
const struct TALER_EXCHANGEDB_RefreshRevealedCoin *rrcs,
|
|
unsigned int num_tprivs,
|
|
const struct TALER_TransferPrivateKeyP *tprivs,
|
|
const struct TALER_TransferPublicKeyP *tp);
|
|
|
|
|
|
/**
|
|
* Lookup in the database for the @a num_freshcoins coins that we
|
|
* created in the given refresh operation.
|
|
*
|
|
* @param cls the @e cls of this struct with the plugin-specific state
|
|
* @param session database connection
|
|
* @param rc identify commitment and thus refresh operation
|
|
* @param cb function to call with the results
|
|
* @param cb_cls closure for @a cb
|
|
* @return transaction status
|
|
*/
|
|
enum GNUNET_DB_QueryStatus
|
|
(*get_refresh_reveal)(void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session,
|
|
const struct TALER_RefreshCommitmentP *rc,
|
|
TALER_EXCHANGEDB_RefreshCallback cb,
|
|
void *cb_cls);
|
|
|
|
|
|
/**
|
|
* Obtain shared secret and transfer public key from the public key of
|
|
* the coin. This information and the link information returned by
|
|
* @e get_link_data_list() enable the owner of an old coin to determine
|
|
* the private keys of the new coins after the melt.
|
|
*
|
|
* @param cls the @e cls of this struct with the plugin-specific state
|
|
* @param session database connection
|
|
* @param coin_pub public key of the coin
|
|
* @param ldc function to call for each session the coin was melted into
|
|
* @param ldc_cls closure for @a tdc
|
|
* @return statement execution status
|
|
*/
|
|
enum GNUNET_DB_QueryStatus
|
|
(*get_link_data)(void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session,
|
|
const struct TALER_CoinSpendPublicKeyP *coin_pub,
|
|
TALER_EXCHANGEDB_LinkCallback ldc,
|
|
void *tdc_cls);
|
|
|
|
|
|
/**
|
|
* Compile a list of all (historic) transactions performed
|
|
* with the given coin (melt, refund, recoup and deposit operations).
|
|
*
|
|
* @param cls the @e cls of this struct with the plugin-specific state
|
|
* @param session database connection
|
|
* @param coin_pub coin to investigate
|
|
* @param include_recoup include recoup transactions of the coin?
|
|
* @param[out] tlp set to list of transactions, NULL if coin is fresh
|
|
* @return database transaction status
|
|
*/
|
|
enum GNUNET_DB_QueryStatus
|
|
(*get_coin_transactions)(void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session,
|
|
const struct TALER_CoinSpendPublicKeyP *coin_pub,
|
|
int include_recoup,
|
|
struct TALER_EXCHANGEDB_TransactionList **tlp);
|
|
|
|
|
|
/**
|
|
* Free linked list of transactions.
|
|
*
|
|
* @param cls the @e cls of this struct with the plugin-specific state
|
|
* @param list list to free
|
|
*/
|
|
void
|
|
(*free_coin_transaction_list) (void *cls,
|
|
struct TALER_EXCHANGEDB_TransactionList *list);
|
|
|
|
|
|
/**
|
|
* Lookup the list of Taler transactions that was aggregated
|
|
* into a wire transfer by the respective @a raw_wtid.
|
|
*
|
|
* @param cls the @e cls of this struct with the plugin-specific state
|
|
* @param session database connection
|
|
* @param wtid the raw wire transfer identifier we used
|
|
* @param cb function to call on each transaction found
|
|
* @param cb_cls closure for @a cb
|
|
* @return query status of the transaction
|
|
*/
|
|
enum GNUNET_DB_QueryStatus
|
|
(*lookup_wire_transfer)(void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session,
|
|
const struct TALER_WireTransferIdentifierRawP *wtid,
|
|
TALER_EXCHANGEDB_AggregationDataCallback cb,
|
|
void *cb_cls);
|
|
|
|
|
|
/**
|
|
* Try to find the wire transfer details for a deposit operation.
|
|
* If we did not execute the deposit yet, return when it is supposed
|
|
* to be executed.
|
|
*
|
|
* @param cls closure
|
|
* @param session database connection
|
|
* @param h_contract_terms hash of the proposal data
|
|
* @param h_wire hash of merchant wire details
|
|
* @param coin_pub public key of deposited coin
|
|
* @param merchant_pub merchant public key
|
|
* @param cb function to call with the result
|
|
* @param cb_cls closure to pass to @a cb
|
|
* @return transaction status code
|
|
*/
|
|
enum GNUNET_DB_QueryStatus
|
|
(*lookup_transfer_by_deposit)(
|
|
void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session,
|
|
const struct GNUNET_HashCode *h_contract_terms,
|
|
const struct GNUNET_HashCode *h_wire,
|
|
const struct TALER_CoinSpendPublicKeyP *coin_pub,
|
|
const struct TALER_MerchantPublicKeyP *merchant_pub,
|
|
TALER_EXCHANGEDB_WireTransferByCoinCallback cb,
|
|
void *cb_cls);
|
|
|
|
|
|
/**
|
|
* Function called to insert aggregation information into the DB.
|
|
*
|
|
* @param cls closure
|
|
* @param session database connection
|
|
* @param wtid the raw wire transfer identifier we used
|
|
* @param deposit_serial_id row in the deposits table for which this is aggregation data
|
|
* @return transaction status code
|
|
*/
|
|
enum GNUNET_DB_QueryStatus
|
|
(*insert_aggregation_tracking)(
|
|
void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session,
|
|
const struct TALER_WireTransferIdentifierRawP *wtid,
|
|
unsigned long long deposit_serial_id);
|
|
|
|
|
|
/**
|
|
* Insert wire transfer fee into database.
|
|
*
|
|
* @param cls closure
|
|
* @param session database connection
|
|
* @param wire_method which wire method is the fee about?
|
|
* @param start_date when does the fee go into effect
|
|
* @param end_date when does the fee end being valid
|
|
* @param wire_fee how high is the wire transfer fee
|
|
* @param closing_fee how high is the closing fee
|
|
* @param master_sig signature over the above by the exchange master key
|
|
* @return transaction status code
|
|
*/
|
|
enum GNUNET_DB_QueryStatus
|
|
(*insert_wire_fee)(void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session,
|
|
const char *wire_method,
|
|
struct GNUNET_TIME_Absolute start_date,
|
|
struct GNUNET_TIME_Absolute end_date,
|
|
const struct TALER_Amount *wire_fee,
|
|
const struct TALER_Amount *closing_fee,
|
|
const struct TALER_MasterSignatureP *master_sig);
|
|
|
|
|
|
/**
|
|
* Obtain wire fee from database.
|
|
*
|
|
* @param cls closure
|
|
* @param session database connection
|
|
* @param type type of wire transfer the fee applies for
|
|
* @param date for which date do we want the fee?
|
|
* @param[out] start_date when does the fee go into effect
|
|
* @param[out] end_date when does the fee end being valid
|
|
* @param[out] wire_fee how high is the wire transfer fee
|
|
* @param[out] closing_fee how high is the closing fee
|
|
* @param[out] master_sig signature over the above by the exchange master key
|
|
* @return query status of the transaction
|
|
*/
|
|
enum GNUNET_DB_QueryStatus
|
|
(*get_wire_fee)(void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session,
|
|
const char *type,
|
|
struct GNUNET_TIME_Absolute date,
|
|
struct GNUNET_TIME_Absolute *start_date,
|
|
struct GNUNET_TIME_Absolute *end_date,
|
|
struct TALER_Amount *wire_fee,
|
|
struct TALER_Amount *closing_fee,
|
|
struct TALER_MasterSignatureP *master_sig);
|
|
|
|
|
|
/**
|
|
* Obtain information about expired reserves and their
|
|
* remaining balances.
|
|
*
|
|
* @param cls closure of the plugin
|
|
* @param session database connection
|
|
* @param now timestamp based on which we decide expiration
|
|
* @param rec function to call on expired reserves
|
|
* @param rec_cls closure for @a rec
|
|
* @return transaction status
|
|
*/
|
|
enum GNUNET_DB_QueryStatus
|
|
(*get_expired_reserves)(void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session,
|
|
struct GNUNET_TIME_Absolute now,
|
|
TALER_EXCHANGEDB_ReserveExpiredCallback rec,
|
|
void *rec_cls);
|
|
|
|
|
|
/**
|
|
* Insert reserve close operation into database.
|
|
*
|
|
* @param cls closure
|
|
* @param session database connection
|
|
* @param reserve_pub which reserve is this about?
|
|
* @param execution_date when did we perform the transfer?
|
|
* @param receiver_account to which account do we transfer, in payto://-format
|
|
* @param wtid identifier for the wire transfer
|
|
* @param amount_with_fee amount we charged to the reserve
|
|
* @param closing_fee how high is the closing fee
|
|
* @return transaction status code
|
|
*/
|
|
enum GNUNET_DB_QueryStatus
|
|
(*insert_reserve_closed)(void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session,
|
|
const struct TALER_ReservePublicKeyP *reserve_pub,
|
|
struct GNUNET_TIME_Absolute execution_date,
|
|
const char *receiver_account,
|
|
const struct TALER_WireTransferIdentifierRawP *wtid,
|
|
const struct TALER_Amount *amount_with_fee,
|
|
const struct TALER_Amount *closing_fee);
|
|
|
|
|
|
/**
|
|
* Function called to insert wire transfer commit data into the DB.
|
|
*
|
|
* @param cls closure
|
|
* @param session database connection
|
|
* @param type type of the wire transfer (i.e. "iban")
|
|
* @param buf buffer with wire transfer preparation data
|
|
* @param buf_size number of bytes in @a buf
|
|
* @return query status code
|
|
*/
|
|
enum GNUNET_DB_QueryStatus
|
|
(*wire_prepare_data_insert)(void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session,
|
|
const char *type,
|
|
const char *buf,
|
|
size_t buf_size);
|
|
|
|
|
|
/**
|
|
* Function called to mark wire transfer commit data as finished.
|
|
*
|
|
* @param cls closure
|
|
* @param session database connection
|
|
* @param rowid which entry to mark as finished
|
|
* @return transaction status code
|
|
*/
|
|
enum GNUNET_DB_QueryStatus
|
|
(*wire_prepare_data_mark_finished)(void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session,
|
|
uint64_t rowid);
|
|
|
|
|
|
/**
|
|
* Function called to mark wire transfer as failed.
|
|
*
|
|
* @param cls closure
|
|
* @param session database connection
|
|
* @param rowid which entry to mark as failed
|
|
* @return transaction status code
|
|
*/
|
|
enum GNUNET_DB_QueryStatus
|
|
(*wire_prepare_data_mark_failed)(void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session,
|
|
uint64_t rowid);
|
|
|
|
|
|
/**
|
|
* Function called to get an unfinished wire transfer
|
|
* preparation data. Fetches at most one item.
|
|
*
|
|
* @param cls closure
|
|
* @param session database connection
|
|
* @param cb function to call for ONE unfinished item
|
|
* @param cb_cls closure for @a cb
|
|
* @return transaction status code
|
|
*/
|
|
enum GNUNET_DB_QueryStatus
|
|
(*wire_prepare_data_get)(void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session,
|
|
TALER_EXCHANGEDB_WirePreparationIterator cb,
|
|
void *cb_cls);
|
|
|
|
|
|
/**
|
|
* Start a transaction where we transiently violate the foreign
|
|
* constraints on the "wire_out" table as we insert aggregations
|
|
* and only add the wire transfer out at the end.
|
|
*
|
|
* @param cls the @e cls of this struct with the plugin-specific state
|
|
* @param session connection to use
|
|
* @return #GNUNET_OK on success
|
|
*/
|
|
int
|
|
(*start_deferred_wire_out) (void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session);
|
|
|
|
|
|
/**
|
|
* Store information about an outgoing wire transfer that was executed.
|
|
*
|
|
* @param cls closure
|
|
* @param session database connection
|
|
* @param date time of the wire transfer
|
|
* @param wtid subject of the wire transfer
|
|
* @param wire_account details about the receiver account of the wire transfer,
|
|
* including 'url' in payto://-format
|
|
* @param amount amount that was transmitted
|
|
* @param exchange_account_section configuration section of the exchange specifying the
|
|
* exchange's bank account being used
|
|
* @return transaction status code
|
|
*/
|
|
enum GNUNET_DB_QueryStatus
|
|
(*store_wire_transfer_out)(
|
|
void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session,
|
|
struct GNUNET_TIME_Absolute date,
|
|
const struct TALER_WireTransferIdentifierRawP *wtid,
|
|
const json_t *wire_account,
|
|
const char *exchange_account_section,
|
|
const struct TALER_Amount *amount);
|
|
|
|
|
|
/**
|
|
* Function called to perform "garbage collection" on the
|
|
* database, expiring records we no longer require.
|
|
*
|
|
* @param cls closure
|
|
* @return #GNUNET_OK on success,
|
|
* #GNUNET_SYSERR on DB errors
|
|
*/
|
|
int
|
|
(*gc) (void *cls);
|
|
|
|
|
|
/**
|
|
* Select deposits above @a serial_id in monotonically increasing
|
|
* order.
|
|
*
|
|
* @param cls closure
|
|
* @param session database connection
|
|
* @param serial_id highest serial ID to exclude (select strictly larger)
|
|
* @param cb function to call on each result
|
|
* @param cb_cls closure for @a cb
|
|
* @return transaction status code
|
|
*/
|
|
enum GNUNET_DB_QueryStatus
|
|
(*select_deposits_above_serial_id)(void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session,
|
|
uint64_t serial_id,
|
|
TALER_EXCHANGEDB_DepositCallback cb,
|
|
void *cb_cls);
|
|
|
|
/**
|
|
* Select refresh sessions above @a serial_id in monotonically increasing
|
|
* order.
|
|
*
|
|
* @param cls closure
|
|
* @param session database connection
|
|
* @param serial_id highest serial ID to exclude (select strictly larger)
|
|
* @param cb function to call on each result
|
|
* @param cb_cls closure for @a cb
|
|
* @return transaction status code
|
|
*/
|
|
enum GNUNET_DB_QueryStatus
|
|
(*select_refreshes_above_serial_id)(void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session,
|
|
uint64_t serial_id,
|
|
TALER_EXCHANGEDB_RefreshesCallback cb,
|
|
void *cb_cls);
|
|
|
|
|
|
/**
|
|
* Select refunds above @a serial_id in monotonically increasing
|
|
* order.
|
|
*
|
|
* @param cls closure
|
|
* @param session database connection
|
|
* @param serial_id highest serial ID to exclude (select strictly larger)
|
|
* @param cb function to call on each result
|
|
* @param cb_cls closure for @a cb
|
|
* @return transaction status code
|
|
*/
|
|
enum GNUNET_DB_QueryStatus
|
|
(*select_refunds_above_serial_id)(void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session,
|
|
uint64_t serial_id,
|
|
TALER_EXCHANGEDB_RefundCallback cb,
|
|
void *cb_cls);
|
|
|
|
|
|
/**
|
|
* Select inbound wire transfers into reserves_in above @a serial_id
|
|
* in monotonically increasing order.
|
|
*
|
|
* @param cls closure
|
|
* @param session database connection
|
|
* @param serial_id highest serial ID to exclude (select strictly larger)
|
|
* @param cb function to call on each result
|
|
* @param cb_cls closure for @a cb
|
|
* @return transaction status code
|
|
*/
|
|
enum GNUNET_DB_QueryStatus
|
|
(*select_reserves_in_above_serial_id)(void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session,
|
|
uint64_t serial_id,
|
|
TALER_EXCHANGEDB_ReserveInCallback cb,
|
|
void *cb_cls);
|
|
|
|
|
|
/**
|
|
* Select inbound wire transfers into reserves_in above @a serial_id
|
|
* in monotonically increasing order by @a account_name.
|
|
*
|
|
* @param cls closure
|
|
* @param session database connection
|
|
* @param account_name name of the account for which we do the selection
|
|
* @param serial_id highest serial ID to exclude (select strictly larger)
|
|
* @param cb function to call on each result
|
|
* @param cb_cls closure for @a cb
|
|
* @return transaction status code
|
|
*/
|
|
enum GNUNET_DB_QueryStatus
|
|
(*select_reserves_in_above_serial_id_by_account)(
|
|
void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session,
|
|
const char *account_name,
|
|
uint64_t serial_id,
|
|
TALER_EXCHANGEDB_ReserveInCallback cb,
|
|
void *cb_cls);
|
|
|
|
|
|
/**
|
|
* Select withdraw operations from reserves_out above @a serial_id
|
|
* in monotonically increasing order.
|
|
*
|
|
* @param cls closure
|
|
* @param session database connection
|
|
* @param account_name name of the account for which we do the selection
|
|
* @param serial_id highest serial ID to exclude (select strictly larger)
|
|
* @param cb function to call on each result
|
|
* @param cb_cls closure for @a cb
|
|
* @return transaction status code
|
|
*/
|
|
enum GNUNET_DB_QueryStatus
|
|
(*select_withdrawals_above_serial_id)(
|
|
void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session,
|
|
uint64_t serial_id,
|
|
TALER_EXCHANGEDB_WithdrawCallback cb,
|
|
void *cb_cls);
|
|
|
|
|
|
/**
|
|
* Function called to select outgoing wire transfers the exchange
|
|
* executed, ordered by serial ID (monotonically increasing).
|
|
*
|
|
* @param cls closure
|
|
* @param session database connection
|
|
* @param serial_id lowest serial ID to include (select larger or equal)
|
|
* @param cb function to call for ONE unfinished item
|
|
* @param cb_cls closure for @a cb
|
|
* @return transaction status code
|
|
*/
|
|
enum GNUNET_DB_QueryStatus
|
|
(*select_wire_out_above_serial_id)(void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session,
|
|
uint64_t serial_id,
|
|
TALER_EXCHANGEDB_WireTransferOutCallback cb,
|
|
void *cb_cls);
|
|
|
|
/**
|
|
* Function called to select outgoing wire transfers the exchange
|
|
* executed, ordered by serial ID (monotonically increasing).
|
|
*
|
|
* @param cls closure
|
|
* @param session database connection
|
|
* @param account_name name to select by
|
|
* @param serial_id lowest serial ID to include (select larger or equal)
|
|
* @param cb function to call for ONE unfinished item
|
|
* @param cb_cls closure for @a cb
|
|
* @return transaction status code
|
|
*/
|
|
enum GNUNET_DB_QueryStatus
|
|
(*select_wire_out_above_serial_id_by_account)(
|
|
void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session,
|
|
const char *account_name,
|
|
uint64_t serial_id,
|
|
TALER_EXCHANGEDB_WireTransferOutCallback cb,
|
|
void *cb_cls);
|
|
|
|
|
|
/**
|
|
* Function called to select recoup requests the exchange
|
|
* received, ordered by serial ID (monotonically increasing).
|
|
*
|
|
* @param cls closure
|
|
* @param session database connection
|
|
* @param serial_id lowest serial ID to include (select larger or equal)
|
|
* @param cb function to call for ONE unfinished item
|
|
* @param cb_cls closure for @a cb
|
|
* @return transaction status code
|
|
*/
|
|
enum GNUNET_DB_QueryStatus
|
|
(*select_recoup_above_serial_id)(void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session,
|
|
uint64_t serial_id,
|
|
TALER_EXCHANGEDB_RecoupCallback cb,
|
|
void *cb_cls);
|
|
|
|
|
|
/**
|
|
* Function called to select recoup requests the exchange received for
|
|
* refreshed coins, ordered by serial ID (monotonically increasing).
|
|
*
|
|
* @param cls closure
|
|
* @param session database connection
|
|
* @param serial_id lowest serial ID to include (select larger or equal)
|
|
* @param cb function to call for ONE unfinished item
|
|
* @param cb_cls closure for @a cb
|
|
* @return transaction status code
|
|
*/
|
|
enum GNUNET_DB_QueryStatus
|
|
(*select_recoup_refresh_above_serial_id)(
|
|
void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session,
|
|
uint64_t serial_id,
|
|
TALER_EXCHANGEDB_RecoupRefreshCallback cb,
|
|
void *cb_cls);
|
|
|
|
|
|
/**
|
|
* Function called to select reserve close operations the aggregator
|
|
* triggered, ordered by serial ID (monotonically increasing).
|
|
*
|
|
* @param cls closure
|
|
* @param session database connection
|
|
* @param serial_id lowest serial ID to include (select larger or equal)
|
|
* @param cb function to call
|
|
* @param cb_cls closure for @a cb
|
|
* @return transaction status code
|
|
*/
|
|
enum GNUNET_DB_QueryStatus
|
|
(*select_reserve_closed_above_serial_id)(
|
|
void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session,
|
|
uint64_t serial_id,
|
|
TALER_EXCHANGEDB_ReserveClosedCallback cb,
|
|
void *cb_cls);
|
|
|
|
|
|
/**
|
|
* Function called to add a request for an emergency recoup for a
|
|
* coin. The funds are to be added back to the reserve.
|
|
*
|
|
* @param cls closure
|
|
* @param session database connection
|
|
* @param reserve_pub public key of the reserve that is being refunded
|
|
* @param coin public information about a coin
|
|
* @param coin_sig signature of the coin of type #TALER_SIGNATURE_WALLET_COIN_RECOUP
|
|
* @param coin_blind blinding key of the coin
|
|
* @param h_blind_ev blinded envelope, as calculated by the exchange
|
|
* @param amount total amount to be paid back
|
|
* @param h_blind_ev hash of the blinded coin's envelope (must match reserves_out entry)
|
|
* @param timestamp the timestamp to store
|
|
* @return transaction result status
|
|
*/
|
|
enum GNUNET_DB_QueryStatus
|
|
(*insert_recoup_request)(
|
|
void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session,
|
|
const struct TALER_ReservePublicKeyP *reserve_pub,
|
|
const struct TALER_CoinPublicInfo *coin,
|
|
const struct TALER_CoinSpendSignatureP *coin_sig,
|
|
const struct TALER_DenominationBlindingKeyP *coin_blind,
|
|
const struct TALER_Amount *amount,
|
|
const struct GNUNET_HashCode *h_blind_ev,
|
|
struct GNUNET_TIME_Absolute timestamp);
|
|
|
|
|
|
/**
|
|
* Function called to add a request for an emergency recoup for a
|
|
* refreshed coin. The funds are to be added back to the original coin.
|
|
*
|
|
* @param cls closure
|
|
* @param session database connection
|
|
* @param coin public information about the refreshed coin
|
|
* @param coin_sig signature of the coin of type #TALER_SIGNATURE_WALLET_COIN_RECOUP
|
|
* @param coin_blind blinding key of the coin
|
|
* @param h_blind_ev blinded envelope, as calculated by the exchange
|
|
* @param amount total amount to be paid back
|
|
* @param h_blind_ev hash of the blinded coin's envelope (must match reserves_out entry)
|
|
* @param timestamp a timestamp to store
|
|
* @return transaction result status
|
|
*/
|
|
enum GNUNET_DB_QueryStatus
|
|
(*insert_recoup_refresh_request)(
|
|
void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session,
|
|
const struct TALER_CoinPublicInfo *coin,
|
|
const struct TALER_CoinSpendSignatureP *coin_sig,
|
|
const struct TALER_DenominationBlindingKeyP *coin_blind,
|
|
const struct TALER_Amount *amount,
|
|
const struct GNUNET_HashCode *h_blind_ev,
|
|
struct GNUNET_TIME_Absolute timestamp);
|
|
|
|
|
|
/**
|
|
* Obtain information about which reserve a coin was generated
|
|
* from given the hash of the blinded coin.
|
|
*
|
|
* @param cls closure
|
|
* @param session a session
|
|
* @param h_blind_ev hash of the blinded coin
|
|
* @param[out] reserve_pub set to information about the reserve (on success only)
|
|
* @return transaction status code
|
|
*/
|
|
enum GNUNET_DB_QueryStatus
|
|
(*get_reserve_by_h_blind)(void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session,
|
|
const struct GNUNET_HashCode *h_blind_ev,
|
|
struct TALER_ReservePublicKeyP *reserve_pub);
|
|
|
|
|
|
/**
|
|
* Obtain information about which old coin a coin was refreshed
|
|
* given the hash of the blinded (fresh) coin.
|
|
*
|
|
* @param cls closure
|
|
* @param session a session
|
|
* @param h_blind_ev hash of the blinded coin
|
|
* @param[out] old_coin_pub set to information about the old coin (on success only)
|
|
* @return transaction status code
|
|
*/
|
|
enum GNUNET_DB_QueryStatus
|
|
(*get_old_coin_by_h_blind)(void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session,
|
|
const struct GNUNET_HashCode *h_blind_ev,
|
|
struct TALER_CoinSpendPublicKeyP *old_coin_pub);
|
|
|
|
|
|
/**
|
|
* Store information that a denomination key was revoked
|
|
* in the database.
|
|
*
|
|
* @param cls closure
|
|
* @param session a session
|
|
* @param denom_pub_hash hash of the revoked denomination key
|
|
* @param master_sig signature affirming the revocation
|
|
* @return transaction status code
|
|
*/
|
|
enum GNUNET_DB_QueryStatus
|
|
(*insert_denomination_revocation)(
|
|
void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session,
|
|
const struct GNUNET_HashCode *denom_pub_hash,
|
|
const struct TALER_MasterSignatureP *master_sig);
|
|
|
|
|
|
/**
|
|
* Obtain information about a denomination key's revocation from
|
|
* the database.
|
|
*
|
|
* @param cls closure
|
|
* @param session a session
|
|
* @param denom_pub_hash hash of the revoked denomination key
|
|
* @param[out] master_sig signature affirming the revocation
|
|
* @param[out] rowid row where the information is stored
|
|
* @return transaction status code
|
|
*/
|
|
enum GNUNET_DB_QueryStatus
|
|
(*get_denomination_revocation)(void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session,
|
|
const struct GNUNET_HashCode *denom_pub_hash,
|
|
struct TALER_MasterSignatureP *master_sig,
|
|
uint64_t *rowid);
|
|
|
|
|
|
/**
|
|
* Select all of those deposits in the database for which we do
|
|
* not have a wire transfer (or a refund) and which should have
|
|
* been deposited between @a start_date and @a end_date.
|
|
*
|
|
* @param cls closure
|
|
* @param session a session
|
|
* @param start_date lower bound on the requested wire execution date
|
|
* @param end_date upper bound on the requested wire execution date
|
|
* @param cb function to call on all such deposits
|
|
* @param cb_cls closure for @a cb
|
|
* @return transaction status code
|
|
*/
|
|
enum GNUNET_DB_QueryStatus
|
|
(*select_deposits_missing_wire)(void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session,
|
|
struct GNUNET_TIME_Absolute start_date,
|
|
struct GNUNET_TIME_Absolute end_date,
|
|
TALER_EXCHANGEDB_WireMissingCallback cb,
|
|
void *cb_cls);
|
|
|
|
|
|
/**
|
|
* Check the last date an auditor was modified.
|
|
*
|
|
* @param cls closure
|
|
* @param session a session
|
|
* @param auditor_pub key to look up information for
|
|
* @param[out] last_date last modification date to auditor status
|
|
* @return transaction status code
|
|
*/
|
|
enum GNUNET_DB_QueryStatus
|
|
(*lookup_auditor_timestamp)(void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session,
|
|
const struct TALER_AuditorPublicKeyP *auditor_pub,
|
|
struct GNUNET_TIME_Absolute *last_date);
|
|
|
|
|
|
/**
|
|
* Lookup current state of an auditor.
|
|
*
|
|
* @param cls closure
|
|
* @param session a session
|
|
* @param auditor_pub key to look up information for
|
|
* @param[out] auditor_url set to the base URL of the auditor's REST API; memory to be
|
|
* released by the caller!
|
|
* @param[out] enabled set if the auditor is currently in use
|
|
* @return transaction status code
|
|
*/
|
|
enum GNUNET_DB_QueryStatus
|
|
(*lookup_auditor_status)(void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session,
|
|
const struct TALER_AuditorPublicKeyP *auditor_pub,
|
|
char **auditor_url,
|
|
bool *enabled);
|
|
|
|
|
|
/**
|
|
* Insert information about an auditor that will audit this exchange.
|
|
*
|
|
* @param cls closure
|
|
* @param session a session
|
|
* @param auditor_pub key of the auditor
|
|
* @param auditor_url base URL of the auditor's REST service
|
|
* @param auditor_name name of the auditor (for humans)
|
|
* @param start_date date when the auditor was added by the offline system
|
|
* (only to be used for replay detection)
|
|
* @return transaction status code
|
|
*/
|
|
enum GNUNET_DB_QueryStatus
|
|
(*insert_auditor)(void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session,
|
|
const struct TALER_AuditorPublicKeyP *auditor_pub,
|
|
const char *auditor_url,
|
|
const char *auditor_name,
|
|
struct GNUNET_TIME_Absolute start_date);
|
|
|
|
|
|
/**
|
|
* Update information about an auditor that will audit this exchange.
|
|
*
|
|
* @param cls closure
|
|
* @param session a session
|
|
* @param auditor_pub key of the auditor (primary key for the existing record)
|
|
* @param auditor_url base URL of the auditor's REST service, to be updated
|
|
* @param auditor_name name of the auditor (for humans)
|
|
* @param change_date date when the auditor status was last changed
|
|
* (only to be used for replay detection)
|
|
* @param enabled true to enable, false to disable
|
|
* @return transaction status code
|
|
*/
|
|
enum GNUNET_DB_QueryStatus
|
|
(*update_auditor)(void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session,
|
|
const struct TALER_AuditorPublicKeyP *auditor_pub,
|
|
const char *auditor_url,
|
|
const char *auditor_name,
|
|
struct GNUNET_TIME_Absolute change_date,
|
|
bool enabled);
|
|
|
|
|
|
/**
|
|
* Check the last date an exchange wire account was modified.
|
|
*
|
|
* @param cls closure
|
|
* @param session a session
|
|
* @param payto_uri key to look up information for
|
|
* @param[out] last_date last modification date to auditor status
|
|
* @return transaction status code
|
|
*/
|
|
enum GNUNET_DB_QueryStatus
|
|
(*lookup_wire_timestamp)(void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session,
|
|
const char *payto_uri,
|
|
struct GNUNET_TIME_Absolute *last_date);
|
|
|
|
|
|
/**
|
|
* Insert information about an wire account used by this exchange.
|
|
*
|
|
* @param cls closure
|
|
* @param session a session
|
|
* @param payto_uri wire account of the exchange
|
|
* @param start_date date when the account was added by the offline system
|
|
* (only to be used for replay detection)
|
|
* @param master_sig public signature affirming the existence of the account,
|
|
* must be of purpose #TALER_SIGNATURE_MASTER_WIRE_DETAILS
|
|
* @return transaction status code
|
|
*/
|
|
enum GNUNET_DB_QueryStatus
|
|
(*insert_wire)(void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session,
|
|
const char *payto_uri,
|
|
struct GNUNET_TIME_Absolute start_date,
|
|
const struct TALER_MasterSignatureP *master_sig);
|
|
|
|
|
|
/**
|
|
* Update information about a wire account of the exchange.
|
|
*
|
|
* @param cls closure
|
|
* @param session a session
|
|
* @param payto_uri account the update is about
|
|
* @param change_date date when the account status was last changed
|
|
* (only to be used for replay detection)
|
|
* @param enabled true to enable, false to disable (the actual change)
|
|
* @return transaction status code
|
|
*/
|
|
enum GNUNET_DB_QueryStatus
|
|
(*update_wire)(void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session,
|
|
const char *payto_uri,
|
|
struct GNUNET_TIME_Absolute change_date,
|
|
bool enabled);
|
|
|
|
|
|
/**
|
|
* Obtain information about the enabled wire accounts of the exchange.
|
|
*
|
|
* @param cls closure
|
|
* @param cb function to call on each account
|
|
* @param cb_cls closure for @a cb
|
|
* @return transaction status code
|
|
*/
|
|
enum GNUNET_DB_QueryStatus
|
|
(*get_wire_accounts)(void *cls,
|
|
TALER_EXCHANGEDB_WireAccountCallback cb,
|
|
void *cb_cls);
|
|
|
|
|
|
/**
|
|
* Obtain information about the fee structure of the exchange for
|
|
* a given @a wire_method
|
|
*
|
|
* @param cls closure
|
|
* @param wire_method which wire method to obtain fees for
|
|
* @param cb function to call on each account
|
|
* @param cb_cls closure for @a cb
|
|
* @return transaction status code
|
|
*/
|
|
enum GNUNET_DB_QueryStatus
|
|
(*get_wire_fees)(void *cls,
|
|
const char *wire_method,
|
|
TALER_EXCHANGEDB_WireFeeCallback cb,
|
|
void *cb_cls);
|
|
|
|
|
|
/**
|
|
* Store information about a revoked online signing key.
|
|
*
|
|
* @param cls closure
|
|
* @param session a session (can be NULL)
|
|
* @param exchange_pub exchange online signing key that was revoked
|
|
* @param master_sig signature affirming the revocation
|
|
* @return transaction status code
|
|
*/
|
|
enum GNUNET_DB_QueryStatus
|
|
(*insert_signkey_revocation)(
|
|
void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session,
|
|
const struct TALER_ExchangePublicKeyP *exchange_pub,
|
|
const struct TALER_MasterSignatureP *master_sig);
|
|
|
|
|
|
/**
|
|
* Obtain information about a revoked online signing key.
|
|
*
|
|
* @param cls closure
|
|
* @param session a session (can be NULL)
|
|
* @param exchange_pub exchange online signing key that was revoked
|
|
* @param[out] master_sig signature affirming the revocation
|
|
* @return transaction status code
|
|
*/
|
|
enum GNUNET_DB_QueryStatus
|
|
(*lookup_signkey_revocation)(
|
|
void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session,
|
|
const struct TALER_ExchangePublicKeyP *exchange_pub,
|
|
struct TALER_MasterSignatureP *master_sig);
|
|
|
|
|
|
/**
|
|
* Lookup information about current denomination key.
|
|
*
|
|
* @param cls closure
|
|
* @param session a session
|
|
* @param h_denom_pub hash of the denomination public key
|
|
* @param[out] meta set to various meta data about the key
|
|
* @return transaction status code
|
|
*/
|
|
enum GNUNET_DB_QueryStatus
|
|
(*lookup_denomination_key)(
|
|
void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session,
|
|
const struct GNUNET_HashCode *h_denom_pub,
|
|
struct TALER_EXCHANGEDB_DenominationKeyMetaData *meta);
|
|
|
|
|
|
/**
|
|
* Add denomination key.
|
|
*
|
|
* @param cls closure
|
|
* @param session a session
|
|
* @param h_denom_pub hash of the denomination public key
|
|
* @param denom_pub the denomination public key
|
|
* @param meta meta data about the denomination
|
|
* @param master_sig master signature to add
|
|
* @return transaction status code
|
|
*/
|
|
enum GNUNET_DB_QueryStatus
|
|
(*add_denomination_key)(
|
|
void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session,
|
|
const struct GNUNET_HashCode *h_denom_pub,
|
|
const struct TALER_DenominationPublicKey *denom_pub,
|
|
const struct TALER_EXCHANGEDB_DenominationKeyMetaData *meta,
|
|
const struct TALER_MasterSignatureP *master_sig);
|
|
|
|
|
|
/**
|
|
* Activate future signing key, turning it into a "current" or "valid"
|
|
* denomination key by adding the master signature.
|
|
*
|
|
* @param cls closure
|
|
* @param session a session
|
|
* @param exchange_pub the exchange online signing public key
|
|
* @param meta meta data about @a exchange_pub
|
|
* @param master_sig master signature to add
|
|
* @return transaction status code
|
|
*/
|
|
enum GNUNET_DB_QueryStatus
|
|
(*activate_signing_key)(
|
|
void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session,
|
|
const struct TALER_ExchangePublicKeyP *exchange_pub,
|
|
const struct TALER_EXCHANGEDB_SignkeyMetaData *meta,
|
|
const struct TALER_MasterSignatureP *master_sig);
|
|
|
|
|
|
/**
|
|
* Lookup signing key meta data.
|
|
*
|
|
* @param cls closure
|
|
* @param session a session
|
|
* @param exchange_pub the exchange online signing public key
|
|
* @param[out] meta meta data about @a exchange_pub
|
|
* @return transaction status code
|
|
*/
|
|
enum GNUNET_DB_QueryStatus
|
|
(*lookup_signing_key)(
|
|
void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session,
|
|
const struct TALER_ExchangePublicKeyP *exchange_pub,
|
|
struct TALER_EXCHANGEDB_SignkeyMetaData *meta);
|
|
|
|
|
|
/**
|
|
* Insert information about an auditor auditing a denomination key.
|
|
*
|
|
* @param cls closure
|
|
* @param session a session
|
|
* @param h_denom_pub the audited denomination
|
|
* @param auditor_pub the auditor's key
|
|
* @param auditor_sig signature affirming the auditor's audit activity
|
|
* @return transaction status code
|
|
*/
|
|
enum GNUNET_DB_QueryStatus
|
|
(*insert_auditor_denom_sig)(
|
|
void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session,
|
|
const struct GNUNET_HashCode *h_denom_pub,
|
|
const struct TALER_AuditorPublicKeyP *auditor_pub,
|
|
const struct TALER_AuditorSignatureP *auditor_sig);
|
|
|
|
|
|
/**
|
|
* Obtain information about an auditor auditing a denomination key.
|
|
*
|
|
* @param cls closure
|
|
* @param session a session
|
|
* @param h_denom_pub the audited denomination
|
|
* @param auditor_pub the auditor's key
|
|
* @param[out] auditor_sig set to signature affirming the auditor's audit activity
|
|
* @return transaction status code
|
|
*/
|
|
enum GNUNET_DB_QueryStatus
|
|
(*select_auditor_denom_sig)(
|
|
void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session,
|
|
const struct GNUNET_HashCode *h_denom_pub,
|
|
const struct TALER_AuditorPublicKeyP *auditor_pub,
|
|
struct TALER_AuditorSignatureP *auditor_sig);
|
|
|
|
|
|
/**
|
|
* Lookup information about known wire fees.
|
|
*
|
|
* @param cls closure
|
|
* @param session a session
|
|
* @param wire_method the wire method to lookup fees for
|
|
* @param start_time starting time of fee
|
|
* @param end_time end time of fee
|
|
* @param[out] wire_fee wire fee for that time period; if
|
|
* different wire fee exists within this time
|
|
* period, an 'invalid' amount is returned.
|
|
* @param[out] closing_fee wire fee for that time period; if
|
|
* different wire fee exists within this time
|
|
* period, an 'invalid' amount is returned.
|
|
* @return transaction status code
|
|
*/
|
|
enum GNUNET_DB_QueryStatus
|
|
(*lookup_wire_fee_by_time)(
|
|
void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session,
|
|
const char *wire_method,
|
|
struct GNUNET_TIME_Absolute start_time,
|
|
struct GNUNET_TIME_Absolute end_time,
|
|
struct TALER_Amount *wire_fee,
|
|
struct TALER_Amount *closing_fee);
|
|
|
|
|
|
/**
|
|
* Lookup the latest serial number of @a table. Used in
|
|
* exchange-auditor database replication.
|
|
*
|
|
* @param cls closure
|
|
* @param session a session
|
|
* @param table table for which we should return the serial
|
|
* @param[out] latest serial number in use
|
|
* @return transaction status code, #GNUNET_DB_STATUS_HARD_ERROR if
|
|
* @a table does not have a serial number
|
|
*/
|
|
enum GNUNET_DB_QueryStatus
|
|
(*lookup_serial_by_table)(void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session,
|
|
enum TALER_EXCHANGEDB_ReplicatedTable table,
|
|
uint64_t *serial);
|
|
|
|
/**
|
|
* Lookup records above @a serial number in @a table. Used in
|
|
* exchange-auditor database replication.
|
|
*
|
|
* @param cls closure
|
|
* @param session a session
|
|
* @param table table for which we should return the serial
|
|
* @param serial largest serial number to exclude
|
|
* @param cb function to call on the records
|
|
* @param cb_cls closure for @a cb
|
|
* @return transaction status code, GNUNET_DB_STATUS_HARD_ERROR if
|
|
* @a table does not have a serial number
|
|
*/
|
|
enum GNUNET_DB_QueryStatus
|
|
(*lookup_records_by_table)(void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session,
|
|
enum TALER_EXCHANGEDB_ReplicatedTable table,
|
|
uint64_t serial,
|
|
TALER_EXCHANGEDB_ReplicationCallback cb,
|
|
void *cb_cls);
|
|
|
|
|
|
/**
|
|
* Insert record set into @a table. Used in exchange-auditor database
|
|
* replication.
|
|
*
|
|
* @param cls closure
|
|
* @param session a session
|
|
* @param tb table data to insert
|
|
* @return transaction status code, #GNUNET_DB_STATUS_HARD_ERROR if
|
|
* @a table does not have a serial number
|
|
*/
|
|
enum GNUNET_DB_QueryStatus
|
|
(*insert_records_by_table)(void *cls,
|
|
struct TALER_EXCHANGEDB_Session *session,
|
|
const struct TALER_EXCHANGEDB_TableData *td);
|
|
|
|
};
|
|
|
|
#endif /* _TALER_EXCHANGE_DB_H */
|