2 * keydb.h - Routines to store and fetch keys.
4 * Jonathan McDowell <noodles@earth.li>
6 * Copyright 2002-2004 Project Purple
14 #include "keystructs.h"
18 * struct dbfuncs - All of the functions a DB backend exports.
22 * initdb - Initialize the key database.
23 * @readonly: If we'll only be reading the DB, not writing to it.
25 * This function should be called before any of the other functions in
26 * this file are called in order to allow the DB to be initialized ready
29 void (*initdb)(bool readonly);
32 * cleanupdb - De-initialize the key database.
34 * This function should be called upon program exit to allow the DB to
35 * cleanup after itself.
37 void (*cleanupdb)(void);
40 * starttrans - Start a transaction.
42 * Start a transaction. Intended to be used if we're about to perform many
43 * operations on the database to help speed it all up, or if we want
44 * something to only succeed if all relevant operations are successful.
46 bool (*starttrans)(void);
49 * endtrans - End a transaction.
53 void (*endtrans)(void);
56 * fetch_key - Given a keyid fetch the key from storage.
57 * @keyid: The keyid to fetch.
58 * @publickey: A pointer to a structure to return the key in.
59 * @intrans: If we're already in a transaction.
61 * This function returns a public key from whatever storage mechanism we
64 * TODO: What about keyid collisions? Should we use fingerprint instead?
66 int (*fetch_key)(uint64_t keyid, struct openpgp_publickey **publickey,
70 * store_key - Takes a key and stores it.
71 * @publickey: A pointer to the public key to store.
72 * @intrans: If we're already in a transaction.
73 * @update: If true the key exists and should be updated.
75 * This function stores a public key in whatever storage mechanism we are
76 * using. intrans indicates if we're already in a transaction so don't
77 * need to start one. update indicates if the key already exists and is
80 * TODO: Do we store multiple keys of the same id? Or only one and replace
83 int (*store_key)(struct openpgp_publickey *publickey, bool intrans,
87 * delete_key - Given a keyid delete the key from storage.
88 * @keyid: The keyid to delete.
89 * @intrans: If we're already in a transaction.
91 * This function deletes a public key from whatever storage mechanism we
92 * are using. Returns 0 if the key existed.
94 int (*delete_key)(uint64_t keyid, bool intrans);
97 * fetch_key_text - Trys to find the keys that contain the supplied text.
98 * @search: The text to search for.
99 * @publickey: A pointer to a structure to return the key in.
101 * This function searches for the supplied text and returns the keys that
104 int (*fetch_key_text)(const char *search,
105 struct openpgp_publickey **publickey);
108 * fetch_key_skshash - Tries to find the keys from an SKS hash
109 * @hash: The hash to search for.
110 * @publickey: A pointer to a structure to return the key in.
112 * This function looks for the key that is referenced by the supplied
113 * SKS hash and returns it.
115 int (*fetch_key_skshash)(const struct skshash *hash,
116 struct openpgp_publickey **publickey);
119 * update_keys - Takes a list of public keys and updates them in the DB.
120 * @keys: The keys to update in the DB.
121 * @sendsync: If we should send a keysync mail.
123 * Takes a list of keys and adds them to the database, merging them with
124 * the key in the database if it's already present there. The key list is
125 * update to contain the minimum set of updates required to get from what
126 * we had before to what we have now (ie the set of data that was added to
127 * the DB). Returns the number of entirely new keys added.
129 * If sendsync is true then we send out a keysync mail to our sync peers
132 int (*update_keys)(struct openpgp_publickey **keys, bool sendsync);
135 * keyid2uid - Takes a keyid and returns the primary UID for it.
136 * @keyid: The keyid to lookup.
138 * This function returns a UID for the given key. Returns NULL if the key
141 char * (*keyid2uid)(uint64_t keyid);
144 * getkeysigs - Gets a linked list of the signatures on a key.
145 * @keyid: The keyid to get the sigs for.
146 * @revoked: Is the key revoked?
148 * This function gets the list of signatures on a key. Used for key
149 * indexing and doing stats bits. If revoked is non-NULL then if the key
150 * is revoked it's set to true.
152 struct ll * (*getkeysigs)(uint64_t keyid, bool *revoked);
155 * cached_getkeysigs - Gets the signatures on a key.
156 * @keyid: The key we want the signatures for.
158 * This function gets the signatures on a key. It's the same as the
159 * getkeysigs function above except we use the hash module to cache the
161 struct ll * (*cached_getkeysigs)(uint64_t keyid);
164 * getfullkeyid - Maps a 32bit key id to a 64bit one.
165 * @keyid: The 32bit keyid.
167 * This function maps a 32bit key id to the full 64bit one. It returns the
168 * full keyid. If the key isn't found a keyid of 0 is returned.
170 uint64_t (*getfullkeyid)(uint64_t keyid);
173 * iterate_keys - call a function once for each key in the db.
174 * @iterfunc: The function to call.
175 * @ctx: A context pointer
177 * Calls iterfunc once for each key in the database. ctx is passed
178 * unaltered to iterfunc. This function is intended to aid database dumps
179 * and statistic calculations.
181 * Returns the number of keys we iterated over.
183 int (*iterate_keys)(void (*iterfunc)(void *ctx,
184 struct openpgp_publickey *key), void *ctx);
187 #endif /* __KEYDB_H__ */