2 * keydb.c - Routines for DB access that just use store/fetch.
4 * Jonathan McDowell <noodles@earth.li>
6 * Copyright 2002-2004 Project Purple
10 * The routines in this file are meant to be used as an initial step when
11 * adding a new db access module. They provide various functions required
12 * of the db access module using only the store and fetch functions. As
13 * they need to parse the actual OpenPGP data to work they are a lot
14 * slower than custom functions however.
19 #include "decodekey.h"
23 #include "keystructs.h"
30 * keyid2uid - Takes a keyid and returns the primary UID for it.
31 * @keyid: The keyid to lookup.
33 char *keyid2uid(uint64_t keyid)
35 struct openpgp_publickey *publickey = NULL;
36 struct openpgp_signedpacket_list *curuid = NULL;
40 if (fetch_key(keyid, &publickey, false) && publickey != NULL) {
41 curuid = publickey->uids;
42 while (curuid != NULL && buf[0] == 0) {
43 if (curuid->packet->tag == 13) {
44 snprintf(buf, 1023, "%.*s",
45 (int) curuid->packet->length,
46 curuid->packet->data);
48 curuid = curuid -> next;
50 free_publickey(publickey);
61 #ifdef NEED_GETKEYSIGS
63 * getkeysigs - Gets a linked list of the signatures on a key.
64 * @keyid: The keyid to get the sigs for.
65 * @revoked: Is the key revoked?
67 * This function gets the list of signatures on a key. Used for key
68 * indexing and doing stats bits. If revoked is non-NULL then if the key
69 * is revoked it's set to true.
71 struct ll *getkeysigs(uint64_t keyid, bool *revoked)
73 struct ll *sigs = NULL;
74 struct openpgp_signedpacket_list *uids = NULL;
75 struct openpgp_publickey *publickey = NULL;
77 fetch_key(keyid, &publickey, false);
79 if (publickey != NULL) {
80 for (uids = publickey->uids; uids != NULL; uids = uids->next) {
81 sigs = keysigs(sigs, uids->sigs);
83 if (revoked != NULL) {
84 *revoked = (publickey->revocations != NULL);
86 free_publickey(publickey);
94 * cached_getkeysigs - Gets the signatures on a key.
95 * @keyid: The key we want the signatures for.
97 * This function gets the signatures on a key. It's the same as the
98 * getkeysigs function above except we use the hash module to cache the
99 * data so if we need it again it's already loaded.
101 struct ll *cached_getkeysigs(uint64_t keyid)
103 struct stats_key *key = NULL;
104 struct stats_key *signedkey = NULL;
105 struct ll *cursig = NULL;
106 bool revoked = false;
112 key = createandaddtohash(keyid);
114 if (key->gotsigs == false) {
115 key->sigs = getkeysigs(key->keyid, &revoked);
116 key->revoked = revoked;
117 for (cursig = key->sigs; cursig != NULL;
118 cursig = cursig->next) {
119 signedkey = (struct stats_key *) cursig->object;
120 signedkey->signs = lladd(signedkey->signs, key);
128 #ifdef NEED_GETFULLKEYID
130 * getfullkeyid - Maps a 32bit key id to a 64bit one.
131 * @keyid: The 32bit keyid.
133 * This function maps a 32bit key id to the full 64bit one. It returns the
134 * full keyid. If the key isn't found a keyid of 0 is returned.
136 uint64_t getfullkeyid(uint64_t keyid)
138 struct openpgp_publickey *publickey = NULL;
140 if (keyid < 0x100000000LL) {
141 fetch_key(keyid, &publickey, false);
142 if (publickey != NULL) {
143 keyid = get_keyid(publickey);
144 free_publickey(publickey);
155 #ifdef NEED_UPDATEKEYS
157 * update_keys - Takes a list of public keys and updates them in the DB.
158 * @keys: The keys to update in the DB.
160 * Takes a list of keys and adds them to the database, merging them with
161 * the key in the database if it's already present there. The key list is
162 * update to contain the minimum set of updates required to get from what
163 * we had before to what we have now (ie the set of data that was added to
164 * the DB). Returns the number of entirely new keys added.
166 int update_keys(struct openpgp_publickey **keys)
168 struct openpgp_publickey *curkey = NULL;
169 struct openpgp_publickey *oldkey = NULL;
170 struct openpgp_publickey *prev = NULL;
174 for (curkey = *keys; curkey != NULL; curkey = curkey->next) {
175 intrans = starttrans();
176 logthing(LOGTHING_INFO,
177 "Fetching key 0x%llX, result: %d",
179 fetch_key(get_keyid(curkey), &oldkey, intrans));
182 * If we already have the key stored in the DB then merge it
183 * with the new one that's been supplied. Otherwise the key
184 * we've just got is the one that goes in the DB and also the
185 * one that we send out.
187 if (oldkey != NULL) {
188 merge_keys(oldkey, curkey);
189 if (curkey->revocations == NULL &&
190 curkey->uids == NULL &&
191 curkey->subkeys == NULL) {
193 *keys = curkey->next;
195 prev->next = curkey->next;
197 free_publickey(curkey);
202 logthing(LOGTHING_INFO,
203 "Merged key; storing updated key.");
204 store_key(oldkey, intrans, true);
206 free_publickey(oldkey);
209 logthing(LOGTHING_INFO,
210 "Storing completely new key.");
211 store_key(curkey, intrans, false);
220 #endif /* NEED_UPDATEKEYS */