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Diffstat (limited to 'src/mint/taler_mintdb_plugin.h')
| -rw-r--r-- | src/mint/taler_mintdb_plugin.h | 1029 |
1 files changed, 0 insertions, 1029 deletions
diff --git a/src/mint/taler_mintdb_plugin.h b/src/mint/taler_mintdb_plugin.h deleted file mode 100644 index 4d74b88d..00000000 --- a/src/mint/taler_mintdb_plugin.h +++ /dev/null @@ -1,1029 +0,0 @@ -/* - 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expiration date of this reserve - */ - struct GNUNET_TIME_Absolute expiry; -}; - - -/** - * Information we keep for a withdrawn coin to reproduce - * the /withdraw operation if needed, and to have proof - * that a reserve was drained by this amount.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 */ |