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diff --git a/src/mint/taler_mintdb_plugin.h b/src/mint/taler_mintdb_plugin.h
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-/*
- This file is part of TALER
- Copyright (C) 2014, 2015 Christian Grothoff (and other contributing authors)
-
- TALER is free software; you can redistribute it and/or modify it under the
- terms of the GNU General Public License as published by the Free Software
- Foundation; either version 3, or (at your option) any later version.
-
- TALER is distributed in the hope that it will be useful, but WITHOUT ANY
- WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
- A PARTICULAR PURPOSE. See the GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License along with
- TALER; see the file COPYING. If not, If not, see <http://www.gnu.org/licenses/>
-*/
-/**
- * @file mint/taler_mintdb_plugin.h
- * @brief Low-level (statement-level) database access for the mint
- * @author Florian Dold
- * @author Christian Grothoff
- */
-#ifndef TALER_MINTDB_PLUGIN_H
-#define TALER_MINTDB_PLUGIN_H
-
-#include <gnunet/gnunet_util_lib.h>
-#include "taler_util.h"
-
-
-/**
- * Information we keep on bank transfer(s) that established a reserve.
- */
-struct BankTransfer
-{
-
- /**
- * Public key of the reserve that was filled.
- */
- struct TALER_ReservePublicKey reserve_pub;
-
- /**
- * Amount that was transferred to the mint.
- */
- struct TALER_Amount amount;
-
- /**
- * Detailed wire information about the transaction.
- */
- json_t *wire;
-
-};
-
-
-/**
- * A summary of a Reserve
- */
-struct Reserve
-{
- /**
- * The reserve's public key. This uniquely identifies the reserve
- */
- struct TALER_ReservePublicKey pub;
-
- /**
- * The balance amount existing in the reserve
- */
- struct TALER_Amount balance;
-
- /**
- * The expiration date of this reserve
- */
- struct GNUNET_TIME_Absolute expiry;
-};
-
-
-/**
- * Information we keep for a withdrawn coin to reproduce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 CollectableBlindcoin
-{
-
- /**
- * Our signature over the (blinded) coin.
- */
- struct TALER_DenominationSignature sig;
-
- /**
- * Denomination key (which coin was generated).
- * FIXME: we should probably instead have the
- * AMOUNT *including* fee in what is being signed
- * as well!
- */
- struct TALER_DenominationPublicKey denom_pub;
-
- /**
- * Public key of the reserve that was drained.
- */
- struct TALER_ReservePublicKey reserve_pub;
-
- /**
- * Hash over the blinded message, needed to verify
- * the @e reserve_sig.
- */
- struct GNUNET_HashCode h_coin_envelope;
-
- /**
- * Signature confirming the withdrawl, matching @e reserve_pub,
- * @e denom_pub and @e h_coin_envelope.
- */
- struct TALER_ReserveSignature reserve_sig;
-};
-
-
-
-/**
- * Types of operations on a reserved.
- */
-enum TALER_MINT_DB_ReserveOperation
-{
- /**
- * Money was deposited into the reserve via a bank transfer.
- */
- TALER_MINT_DB_RO_BANK_TO_MINT = 0,
-
- /**
- * A Coin was withdrawn from the reserve using /withdraw.
- */
- TALER_MINT_DB_RO_WITHDRAW_COIN = 1
-};
-
-
-/**
- * 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 ReserveHistory
-{
-
- /**
- * Next entry in the reserve history.
- */
- struct ReserveHistory *next;
-
- /**
- * Type of the event, determins @e details.
- */
- enum TALER_MINT_DB_ReserveOperation type;
-
- /**
- * Details of the operation, depending on @e type.
- */
- union
- {
-
- /**
- * Details about a bank transfer to the mint.
- */
- struct BankTransfer *bank;
-
- /**
- * Details about a /withdraw operation.
- */
- struct CollectableBlindcoin *withdraw;
-
- } details;
-
-};
-
-
-/**
- * Specification for a /deposit operation.
- */
-struct 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 contract identified
- * by @e h_contract.
- */
- struct TALER_CoinSpendSignature csig;
-
- /**
- * Public key of the merchant. Enables later identification
- * of the merchant in case of a need to rollback transactions.
- */
- struct TALER_MerchantPublicKey merchant_pub;
-
- /**
- * Hash over the contract between merchant and customer
- * (remains unknown to the Mint).
- */
- struct GNUNET_HashCode h_contract;
-
- /**
- * Hash of the (canonical) representation of @e wire, used
- * to check the signature on the request. Generated by
- * the mint from the detailed wire data provided by the
- * merchant.
- */
- struct GNUNET_HashCode h_wire;
-
- /**
- * Detailed wire information for executing the transaction.
- */
- json_t *wire;
-
- /**
- * Merchant-generated transaction ID to detect duplicate
- * transactions.
- */
- uint64_t transaction_id;
-
- /**
- * 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;
-
-};
-
-
-/**
- * Global information for a refreshing session. Includes
- * dimensions of the operation, security parameters and
- * client signatures from "/refresh/melt" and "/refresh/commit".
- */
-struct RefreshSession
-{
-
- /**
- * Number of coins we are melting.
- */
- uint16_t num_oldcoins;
-
- /**
- * Number of new coins we are creating.
- */
- uint16_t num_newcoins;
-
- /**
- * Index (smaller #KAPPA) which the mint has chosen to not
- * have revealed during cut and choose.
- */
- uint16_t noreveal_index;
-
-};
-
-
-/**
- * Specification for coin in a /refresh/melt operation.
- */
-struct RefreshMelt
-{
- /**
- * Information about the coin that is being melted.
- */
- struct TALER_CoinPublicInfo coin;
-
- /**
- * Signature over the melting operation.
- */
- struct TALER_CoinSpendSignature coin_sig;
-
- /**
- * Hash of the refresh session this coin is melted into.
- */
- struct GNUNET_HashCode session_hash;
-
- /**
- * 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;
-
-};
-
-
-/**
- * We have as many `struct RefreshCommitCoin` as there are new
- * coins being created by the refresh (for each of the #KAPPA
- * sets). These are the coins we ask the mint to sign if the
- * respective set is selected.
- */
-struct RefreshCommitCoin
-{
-
- /**
- * Encrypted data allowing those able to decrypt it to derive
- * the private keys of the new coins created by the refresh.
- */
- struct TALER_RefreshLinkEncrypted *refresh_link;
-
- /**
- * 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;
-
-};
-
-
-GNUNET_NETWORK_STRUCT_BEGIN
-
-/**
- * For each (old) coin being melted, we have a `struct
- * RefreshCommitLink` that allows the user to find the shared secret
- * to decrypt the respective refresh links for the new coins in the
- * `struct RefreshCommitCoin`.
- */
-struct RefreshCommitLink
-{
- /**
- * Transfer public key, used to decrypt the @e shared_secret_enc
- * in combintation with the corresponding private key of the
- * coin.
- */
- struct TALER_TransferPublicKey transfer_pub;
-
- /**
- * Encrypted shared secret to decrypt the link.
- */
- struct TALER_EncryptedLinkSecret shared_secret_enc;
-};
-
-GNUNET_NETWORK_STRUCT_END
-
-
-
-/**
- * Linked list of refresh information linked to a coin.
- */
-struct LinkDataList
-{
- /**
- * Information is stored in a NULL-terminated linked list.
- */
- struct LinkDataList *next;
-
- /**
- * Link data, used to recover the private key of the coin
- * by the owner of the old coin.
- */
- struct TALER_RefreshLinkEncrypted *link_data_enc;
-
- /**
- * Denomination public key, determines the value of the coin.
- */
- struct TALER_DenominationPublicKey denom_pub;
-
- /**
- * Signature over the blinded envelope.
- */
- struct TALER_DenominationSignature ev_sig;
-};
-
-
-/**
- * Specification for a /lock operation.
- */
-struct Lock
-{
- /**
- * Information about the coin that is being locked.
- */
- struct TALER_CoinPublicInfo coin;
-
- /**
- * Signature over the locking operation.
- */
- struct TALER_CoinSpendSignature coin_sig;
-
- /**
- * How much value is being locked?
- */
- struct TALER_Amount amount;
-
- // FIXME: more needed...
-};
-
-
-/**
- * Enumeration to classify the different types of transactions
- * that can be done with a coin.
- */
-enum TALER_MINT_DB_TransactionType
-{
- /**
- * /deposit operation.
- */
- TALER_MINT_DB_TT_DEPOSIT = 0,
-
- /**
- * /refresh/melt operation.
- */
- TALER_MINT_DB_TT_REFRESH_MELT = 1,
-
- /**
- * /lock operation.
- */
- TALER_MINT_DB_TT_LOCK = 2
-};
-
-
-/**
- * List of transactions we performed for a particular coin.
- */
-struct TALER_MINT_DB_TransactionList
-{
-
- /**
- * Next pointer in the NULL-terminated linked list.
- */
- struct TALER_MINT_DB_TransactionList *next;
-
- /**
- * Type of the transaction, determines what is stored in @e details.
- */
- enum TALER_MINT_DB_TransactionType type;
-
- /**
- * Details about the transaction, depending on @e type.
- */
- union
- {
-
- /**
- * Details if transaction was a /deposit operation.
- */
- struct Deposit *deposit;
-
- /**
- * Details if transaction was a /refresh/melt operation.
- */
- struct RefreshMelt *melt;
-
- /**
- * Details if transaction was a /lock operation.
- */
- struct Lock *lock;
-
- } details;
-
-};
-
-
-/**
- * Handle for a database session (per-thread, for transactions).
- */
-struct TALER_MINTDB_Session;
-
-
-/**
- * The plugin API, returned from the plugin's "init" function.
- * The argument given to "init" is simply a configuration handle.
- */
-struct TALER_MINTDB_Plugin
-{
-
- /**
- * Closure for all callbacks.
- */
- void *cls;
-
- /**
- * Name of the library which generated this plugin
- */
- const 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
- * @param temporary #GNUNET_YES to use a temporary schema; #GNUNET_NO to use the
- * database default one
- * @param the database connection, or NULL on error
- */
- struct TALER_MINTDB_Session *
- (*get_session) (void *cls,
- int temporary);
-
-
- /**
- * Drop the temporary taler schema. This is only useful for 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_temporary) (void *cls,
- struct TALER_MINTDB_Session *db);
-
-
- /**
- * Create the necessary tables if they are not present
- *
- * @param cls the @e cls of this struct with the plugin-specific state
- * @param temporary should we use a temporary schema
- * @return #GNUNET_OK upon success; #GNUNET_SYSERR upon failure
- */
- int
- (*create_tables) (void *cls,
- int temporary);
-
-
- /**
- * Start a transaction.
- *
- * @param cls the @e cls of this struct with the plugin-specific state
- * @param sesssion connection to use
- * @return #GNUNET_OK on success
- */
- int
- (*start) (void *cls,
- struct TALER_MINTDB_Session *sesssion);
-
-
- /**
- * Commit a transaction.
- *
- * @param cls the @e cls of this struct with the plugin-specific state
- * @param sesssion connection to use
- * @return #GNUNET_OK on success
- */
- int
- (*commit) (void *cls,
- struct TALER_MINTDB_Session *sesssion);
-
-
- /**
- * Abort/rollback a transaction.
- *
- * @param cls the @e cls of this struct with the plugin-specific state
- * @param sesssion connection to use
- */
- void
- (*rollback) (void *cls,
- struct TALER_MINTDB_Session *sesssion);
-
-
- /**
- * Get the summary of a reserve.
- *
- * @param cls the @e cls of this struct with the plugin-specific state
- * @param db the database connection handle
- * @param 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 #GNUNET_OK upon success; #GNUNET_SYSERR upon failure
- */
- int
- (*reserve_get) (void *cls,
- struct TALER_MINTDB_Session *db,
- struct Reserve *reserve);
-
- /* FIXME: add functions to add bank transfers to our DB
- (and to test if we already did add one) (#3633/#3717) */
-
-
- /**
- * 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 db the database connection handle
- * @param reserve the reserve structure. The public key of the reserve should
- * be set here. Upon successful execution of this function, the
- * balance and expiration of the reserve will be updated.
- * @param balance the amount that has to be added to the reserve
- * @param expiry the new expiration time for the reserve
- * @return #GNUNET_OK upon success; #GNUNET_SYSERR upon failures
- */
- int
- (*reserves_in_insert) (void *cls,
- struct TALER_MINTDB_Session *db,
- struct Reserve *reserve,
- const struct TALER_Amount *balance,
- const struct GNUNET_TIME_Absolute expiry);
-
-
- /**
- * Locate the response for a /withdraw request under the
- * key of the hash of the blinded message.
- *
- * @param cls the @e cls of this struct with the plugin-specific state
- * @param sesssion database connection to use
- * @param h_blind hash of the blinded message
- * @param collectable corresponding collectable coin (blind signature)
- * if a coin is found
- * @return #GNUNET_SYSERR on internal error
- * #GNUNET_NO if the collectable was not found
- * #GNUNET_YES on success
- */
- int
- (*get_collectable_blindcoin) (void *cls,
- struct TALER_MINTDB_Session *sesssion,
- const struct GNUNET_HashCode *h_blind,
- struct CollectableBlindcoin *collectable);
-
-
- /**
- * Store collectable bit coin under the corresponding
- * hash of the blinded message.
- *
- * @param cls the @e cls of this struct with the plugin-specific state
- * @param sesssion database connection to use
- * @param h_blind hash of the blinded message
- * @param withdraw amount by which the reserve will be withdrawn with this
- * transaction
- * @param collectable corresponding collectable coin (blind signature)
- * if a coin is found
- * @return #GNUNET_SYSERR on internal error
- * #GNUNET_NO if the collectable was not found
- * #GNUNET_YES on success
- */
- int
- (*insert_collectable_blindcoin) (void *cls,
- struct TALER_MINTDB_Session *sesssion,
- const struct GNUNET_HashCode *h_blind,
- struct TALER_Amount withdraw,
- const struct 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 sesssion connection to use
- * @param reserve_pub public key of the reserve
- * @return known transaction history (NULL if reserve is unknown)
- */
- struct ReserveHistory *
- (*get_reserve_history) (void *cls,
- struct TALER_MINTDB_Session *sesssion,
- const struct TALER_ReservePublicKey *reserve_pub);
-
-
- /**
- * 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 ReserveHistory *rh);
-
-
- /**
- * 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 sesssion database connection
- * @param deposit deposit to search for
- * @return #GNUNET_YES if we know this operation,
- * #GNUNET_NO if this deposit is unknown to us,
- * #GNUNET_SYSERR on internal error
- */
- int
- (*have_deposit) (void *cls,
- struct TALER_MINTDB_Session *sesssion,
- const struct Deposit *deposit);
-
-
- /**
- * Insert information about deposited coin into the
- * database.
- *
- * @param cls the @e cls of this struct with the plugin-specific state
- * @param sesssion connection to the database
- * @param deposit deposit information to store
- * @return #GNUNET_OK on success, #GNUNET_SYSERR on error
- */
- int
- (*insert_deposit) (void *cls,
- struct TALER_MINTDB_Session *sesssion,
- const struct Deposit *deposit);
-
-
- /**
- * Lookup refresh session data under the given @a session_hash.
- *
- * @param cls the @e cls of this struct with the plugin-specific state
- * @param sesssion database handle to use
- * @param session_hash hash over the melt to use for the lookup
- * @param refresh_session[OUT] where to store the result
- * @return #GNUNET_YES on success,
- * #GNUNET_NO if not found,
- * #GNUNET_SYSERR on DB failure
- */
- int
- (*get_refresh_session) (void *cls,
- struct TALER_MINTDB_Session *sesssion,
- const struct GNUNET_HashCode *session_hash,
- struct RefreshSession *refresh_session);
-
-
- /**
- * Store new refresh session data under the given @a session_hash.
- *
- * @param cls the @e cls of this struct with the plugin-specific state
- * @param sesssion database handle to use
- * @param session_hash hash over the melt to use to locate the session
- * @param refresh_session session data to store
- * @return #GNUNET_YES on success,
- * #GNUNET_SYSERR on DB failure
- */
- int
- (*create_refresh_session) (void *cls,
- struct TALER_MINTDB_Session *sesssion,
- const struct GNUNET_HashCode *session_hash,
- const struct RefreshSession *refresh_session);
-
-
- /**
- * Store the given /refresh/melt request in the database.
- *
- * @param cls the @e cls of this struct with the plugin-specific state
- * @param sesssion database connection
- * @param oldcoin_index index of the coin to store
- * @param melt coin melt operation details to store; includes
- * the session hash of the melt
- * @return #GNUNET_OK on success
- * #GNUNET_SYSERR on internal error
- */
- int
- (*insert_refresh_melt) (void *cls,
- struct TALER_MINTDB_Session *sesssion,
- uint16_t oldcoin_index,
- const struct RefreshMelt *melt);
-
-
- /**
- * Get information about melted coin details from the database.
- *
- * @param cls the @e cls of this struct with the plugin-specific state
- * @param sesssion database connection
- * @param session_hash hash to identify refresh session
- * @param oldcoin_index index of the coin to retrieve
- * @param melt melt data to fill in
- * @return #GNUNET_OK on success
- * #GNUNET_SYSERR on internal error
- */
- int
- (*get_refresh_melt) (void *cls,
- struct TALER_MINTDB_Session *sesssion,
- const struct GNUNET_HashCode *session_hash,
- uint16_t oldcoin_index,
- struct RefreshMelt *melt);
-
-
- /**
- * Store in the database which coin(s) we want to create
- * in a given refresh operation.
- *
- * @param cls the @e cls of this struct with the plugin-specific state
- * @param sesssion database connection
- * @param session_hash hash to identify refresh session
- * @param num_newcoins number of coins to generate, size of the @a denom_pubs array
- * @param denom_pubs array denominations of the coins to create
- * @return #GNUNET_OK on success
- * #GNUNET_SYSERR on internal error
- */
- int
- (*insert_refresh_order) (void *cls,
- struct TALER_MINTDB_Session *sesssion,
- const struct GNUNET_HashCode *session_hash,
- uint16_t num_newcoins,
- const struct TALER_DenominationPublicKey *denom_pubs);
-
-
- /**
- * Lookup in the database for the @a num_newcoins coins that we want to
- * create in the given refresh operation.
- *
- * @param cls the @e cls of this struct with the plugin-specific state
- * @param sesssion database connection
- * @param session_hash hash to identify refresh session
- * @param num_newcoins size of the @a denom_pubs array
- * @param denom_pubs[OUT] where to write @a num_newcoins denomination keys
- * @return #GNUNET_OK on success
- * #GNUNET_SYSERR on internal error
- */
- int
- (*get_refresh_order) (void *cls,
- struct TALER_MINTDB_Session *sesssion,
- const struct GNUNET_HashCode *session_hash,
- uint16_t num_newcoins,
- struct TALER_DenominationPublicKey *denom_pubs);
-
-
- /**
- * Store information about the commitments of the given index @a i
- * for the given refresh session in the database.
- *
- * @param cls the @e cls of this struct with the plugin-specific state
- * @param sesssion database connection to use
- * @param session_hash hash to identify refresh session
- * @param i set index (1st dimension), relating to #KAPPA
- * @param num_newcoins coin index size of the @a commit_coins array
- * @param commit_coin array of coin commitments to store
- * @return #GNUNET_OK on success
- * #GNUNET_SYSERR on error
- */
- int
- (*insert_refresh_commit_coins) (void *cls,
- struct TALER_MINTDB_Session *sesssion,
- const struct GNUNET_HashCode *session_hash,
- unsigned int i,
- unsigned int num_newcoins,
- const struct RefreshCommitCoin *commit_coins);
-
-
- /**
- * Obtain information about the commitment of the
- * given coin of the given refresh session from the database.
- *
- * @param cls the @e cls of this struct with the plugin-specific state
- * @param sesssion database connection to use
- * @param session_hash hash to identify refresh session
- * @param i set index (1st dimension)
- * @param num_coins size of the @a commit_coins array
- * @param commit_coin[OUT] array of coin commitments to return
- * @return #GNUNET_OK on success
- * #GNUNET_NO if not found
- * #GNUNET_SYSERR on error
- */
- int
- (*get_refresh_commit_coins) (void *cls,
- struct TALER_MINTDB_Session *sesssion,
- const struct GNUNET_HashCode *session_hash,
- unsigned int i,
- unsigned int num_coins,
- struct RefreshCommitCoin *commit_coins);
-
-
- /**
- * Store the commitment to the given (encrypted) refresh link data
- * for the given refresh session.
- *
- * @param cls the @e cls of this struct with the plugin-specific state
- * @param sesssion database connection to use
- * @param session_hash hash to identify refresh session
- * @param i set index (1st dimension), relating to #KAPPA
- * @param num_links size of the @a commit_link array
- * @param commit_links array of link information to store
- * @return #GNUNET_SYSERR on internal error, #GNUNET_OK on success
- */
- int
- (*insert_refresh_commit_links) (void *cls,
- struct TALER_MINTDB_Session *sesssion,
- const struct GNUNET_HashCode *session_hash,
- unsigned int i,
- unsigned int num_links,
- const struct RefreshCommitLink *commit_links);
-
- /**
- * Obtain the commited (encrypted) refresh link data
- * for the given refresh session.
- *
- * @param cls the @e cls of this struct with the plugin-specific state
- * @param sesssion database connection to use
- * @param session_hash hash to identify refresh session
- * @param i set index (1st dimension)
- * @param num_links size of the @links array to return
- * @param links[OUT] array link information to return
- * @return #GNUNET_SYSERR on internal error,
- * #GNUNET_NO if commitment was not found
- * #GNUNET_OK on success
- */
- int
- (*get_refresh_commit_links) (void *cls,
- struct TALER_MINTDB_Session *sesssion,
- const struct GNUNET_HashCode *session_hash,
- unsigned int i,
- unsigned int num_links,
- struct RefreshCommitLink *links);
-
-
- /**
- * Insert signature of a new coin generated during refresh into
- * the database indexed by the refresh session and the index
- * of the coin. This data is later used should an old coin
- * be used to try to obtain the private keys during "/refresh/link".
- *
- * @param cls the @e cls of this struct with the plugin-specific state
- * @param sesssion database connection
- * @param session_hash hash to identify refresh session
- * @param newcoin_index coin index
- * @param ev_sig coin signature
- * @return #GNUNET_OK on success
- */
- int
- (*insert_refresh_collectable) (void *cls,
- struct TALER_MINTDB_Session *sesssion,
- const struct GNUNET_HashCode *session_hash,
- uint16_t newcoin_index,
- const struct TALER_DenominationSignature *ev_sig);
-
-
- /**
- * Obtain the link data of a coin, that is the encrypted link
- * information, the denomination keys and the signatures.
- *
- * @param cls the @e cls of this struct with the plugin-specific state
- * @param sesssion database connection
- * @param coin_pub public key to use to retrieve linkage data
- * @return all known link data for the coin
- */
- struct LinkDataList *
- (*get_link_data_list) (void *cls,
- struct TALER_MINTDB_Session *sesssion,
- const struct TALER_CoinSpendPublicKey *coin_pub);
-
-
- /**
- * Free memory of the link data list.
- *
- * @param cls the @e cls of this struct with the plugin-specific state
- * @param ldl link data list to release
- */
- void
- (*free_link_data_list) (void *cls,
- struct LinkDataList *ldl);
-
-
- /**
- * Obtain shared secret and transfer public key from the public key of
- * the coin. This information and the link information returned by
- * #TALER_db_get_link() 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 sesssion database connection
- * @param coin_pub public key of the coin
- * @param transfer_pub[OUT] public transfer key
- * @param shared_secret_enc[OUT] set to shared secret
- * @return #GNUNET_OK on success,
- * #GNUNET_NO on failure (not found)
- * #GNUNET_SYSERR on internal failure (database issue)
- */
- int
- (*get_transfer) (void *cls,
- struct TALER_MINTDB_Session *sesssion,
- const struct TALER_CoinSpendPublicKey *coin_pub,
- struct TALER_TransferPublicKey *transfer_pub,
- struct TALER_EncryptedLinkSecret *shared_secret_enc);
-
-
- /**
- * Test if the given /lock request is known to us.
- *
- * @param cls the @e cls of this struct with the plugin-specific state
- * @param sesssion database connection
- * @param lock lock operation
- * @return #GNUNET_YES if known,
- * #GNUENT_NO if not,
- * #GNUNET_SYSERR on internal error
- */
- int
- (*have_lock) (void *cls,
- struct TALER_MINTDB_Session *sesssion,
- const struct Lock *lock);
-
-
- /**
- * Store the given /lock request in the database.
- *
- * @param cls the @e cls of this struct with the plugin-specific state
- * @param sesssion database connection
- * @param lock lock operation
- * @return #GNUNET_OK on success
- * #GNUNET_SYSERR on internal error
- */
- int
- (*insert_lock) (void *cls,
- struct TALER_MINTDB_Session *sesssion,
- const struct Lock *lock);
-
-
- /**
- * Compile a list of all (historic) transactions performed
- * with the given coin (/refresh/melt and /deposit operations).
- *
- * @param cls the @e cls of this struct with the plugin-specific state
- * @param sesssion database connection
- * @param coin_pub coin to investigate
- * @return list of transactions, NULL if coin is fresh
- */
- struct TALER_MINT_DB_TransactionList *
- (*get_coin_transactions) (void *cls,
- struct TALER_MINTDB_Session *sesssion,
- const struct TALER_CoinSpendPublicKey *coin_pub);
-
-
- /**
- * 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_MINT_DB_TransactionList *list);
-
-
-};
-
-
-#endif /* _NEURO_MINT_DB_H */
generated by cgit v1.2.3 (git 2.39.1) at 2024-05-09 11:46:10 +0000