X-Git-Url: https://git.sommitrealweird.co.uk/onak.git/blobdiff_plain/5913c95f2c7abf4c3cb06e27d384d80fb4c83547..33cfd5887ea8d05241b5b4749abbf7fdfadb51fe:/keydb.h diff --git a/keydb.h b/keydb.h index 647916c..5e511d5 100644 --- a/keydb.h +++ b/keydb.h @@ -1,28 +1,43 @@ /* * keydb.h - Routines to store and fetch keys. * - * Jonathan McDowell + * Copyright 2002-2004 Jonathan McDowell * - * Copyright 2002 Project Purple + * This program 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; version 2 of the License. + * + * This program 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 + * this program; if not, write to the Free Software Foundation, Inc., 51 + * Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ #ifndef __KEYDB_H__ #define __KEYDB_H__ -// #include #include #include "keystructs.h" #include "ll.h" +/** + * struct dbfuncs - All of the functions a DB backend exports. + */ +struct dbfuncs { /** * initdb - Initialize the key database. + * @readonly: If we'll only be reading the DB, not writing to it. * * This function should be called before any of the other functions in * this file are called in order to allow the DB to be initialized ready * for access. */ -void initdb(void); + void (*initdb)(bool readonly); /** * cleanupdb - De-initialize the key database. @@ -30,7 +45,7 @@ void initdb(void); * This function should be called upon program exit to allow the DB to * cleanup after itself. */ -void cleanupdb(void); + void (*cleanupdb)(void); /** * starttrans - Start a transaction. @@ -39,14 +54,14 @@ void cleanupdb(void); * operations on the database to help speed it all up, or if we want * something to only succeed if all relevant operations are successful. */ -bool starttrans(void); + bool (*starttrans)(void); /** * endtrans - End a transaction. * * Ends a transaction. */ -void endtrans(void); + void (*endtrans)(void); /** * fetch_key - Given a keyid fetch the key from storage. @@ -59,7 +74,8 @@ void endtrans(void); * * TODO: What about keyid collisions? Should we use fingerprint instead? */ -int fetch_key(uint64_t keyid, struct openpgp_publickey **publickey, bool intrans); + int (*fetch_key)(uint64_t keyid, struct openpgp_publickey **publickey, + bool intrans); /** * store_key - Takes a key and stores it. @@ -75,7 +91,8 @@ int fetch_key(uint64_t keyid, struct openpgp_publickey **publickey, bool intrans * TODO: Do we store multiple keys of the same id? Or only one and replace * it? */ -int store_key(struct openpgp_publickey *publickey, bool intrans, bool update); + int (*store_key)(struct openpgp_publickey *publickey, bool intrans, + bool update); /** * delete_key - Given a keyid delete the key from storage. @@ -85,7 +102,7 @@ int store_key(struct openpgp_publickey *publickey, bool intrans, bool update); * This function deletes a public key from whatever storage mechanism we * are using. Returns 0 if the key existed. */ -int delete_key(uint64_t keyid, bool intrans); + int (*delete_key)(uint64_t keyid, bool intrans); /** * fetch_key_text - Trys to find the keys that contain the supplied text. @@ -95,7 +112,35 @@ int delete_key(uint64_t keyid, bool intrans); * This function searches for the supplied text and returns the keys that * contain it. */ -int fetch_key_text(const char *search, struct openpgp_publickey **publickey); + int (*fetch_key_text)(const char *search, + struct openpgp_publickey **publickey); + +/** + * fetch_key_skshash - Tries to find the keys from an SKS hash + * @hash: The hash to search for. + * @publickey: A pointer to a structure to return the key in. + * + * This function looks for the key that is referenced by the supplied + * SKS hash and returns it. + */ + int (*fetch_key_skshash)(const struct skshash *hash, + struct openpgp_publickey **publickey); + +/** + * update_keys - Takes a list of public keys and updates them in the DB. + * @keys: The keys to update in the DB. + * @sendsync: If we should send a keysync mail. + * + * Takes a list of keys and adds them to the database, merging them with + * the key in the database if it's already present there. The key list is + * update to contain the minimum set of updates required to get from what + * we had before to what we have now (ie the set of data that was added to + * the DB). Returns the number of entirely new keys added. + * + * If sendsync is true then we send out a keysync mail to our sync peers + * with the update. + */ + int (*update_keys)(struct openpgp_publickey **keys, bool sendsync); /** * keyid2uid - Takes a keyid and returns the primary UID for it. @@ -104,16 +149,18 @@ int fetch_key_text(const char *search, struct openpgp_publickey **publickey); * This function returns a UID for the given key. Returns NULL if the key * isn't found. */ -char *keyid2uid(uint64_t keyid); + char * (*keyid2uid)(uint64_t keyid); /** * getkeysigs - Gets a linked list of the signatures on a key. * @keyid: The keyid to get the sigs for. + * @revoked: Is the key revoked? * * This function gets the list of signatures on a key. Used for key - * indexing and doing stats bits. + * indexing and doing stats bits. If revoked is non-NULL then if the key + * is revoked it's set to true. */ -struct ll *getkeysigs(uint64_t keyid); + struct ll * (*getkeysigs)(uint64_t keyid, bool *revoked); /** * cached_getkeysigs - Gets the signatures on a key. @@ -122,7 +169,7 @@ struct ll *getkeysigs(uint64_t keyid); * This function gets the signatures on a key. It's the same as the * getkeysigs function above except we use the hash module to cache the */ -struct ll *cached_getkeysigs(uint64_t keyid); + struct ll * (*cached_getkeysigs)(uint64_t keyid); /** * getfullkeyid - Maps a 32bit key id to a 64bit one. @@ -131,6 +178,21 @@ struct ll *cached_getkeysigs(uint64_t keyid); * This function maps a 32bit key id to the full 64bit one. It returns the * full keyid. If the key isn't found a keyid of 0 is returned. */ -uint64_t getfullkeyid(uint64_t keyid); + uint64_t (*getfullkeyid)(uint64_t keyid); + +/** + * iterate_keys - call a function once for each key in the db. + * @iterfunc: The function to call. + * @ctx: A context pointer + * + * Calls iterfunc once for each key in the database. ctx is passed + * unaltered to iterfunc. This function is intended to aid database dumps + * and statistic calculations. + * + * Returns the number of keys we iterated over. + */ + int (*iterate_keys)(void (*iterfunc)(void *ctx, + struct openpgp_publickey *key), void *ctx); +}; #endif /* __KEYDB_H__ */