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"
31 * keyid2uid - Takes a keyid and returns the primary UID for it.
32 * @keyid: The keyid to lookup.
34 char *keyid2uid(uint64_t keyid)
36 struct openpgp_publickey *publickey = NULL;
37 struct openpgp_signedpacket_list *curuid = NULL;
41 if (fetch_key(keyid, &publickey, false) && publickey != NULL) {
42 curuid = publickey->uids;
43 while (curuid != NULL && buf[0] == 0) {
44 if (curuid->packet->tag == 13) {
45 snprintf(buf, 1023, "%.*s",
46 (int) curuid->packet->length,
47 curuid->packet->data);
49 curuid = curuid -> next;
51 free_publickey(publickey);
62 #ifdef NEED_GETKEYSIGS
64 * getkeysigs - Gets a linked list of the signatures on a key.
65 * @keyid: The keyid to get the sigs for.
66 * @revoked: Is the key revoked?
68 * This function gets the list of signatures on a key. Used for key
69 * indexing and doing stats bits. If revoked is non-NULL then if the key
70 * is revoked it's set to true.
72 struct ll *getkeysigs(uint64_t keyid, bool *revoked)
74 struct ll *sigs = NULL;
75 struct openpgp_signedpacket_list *uids = NULL;
76 struct openpgp_publickey *publickey = NULL;
78 fetch_key(keyid, &publickey, false);
80 if (publickey != NULL) {
81 for (uids = publickey->uids; uids != NULL; uids = uids->next) {
82 sigs = keysigs(sigs, uids->sigs);
84 if (revoked != NULL) {
85 *revoked = (publickey->revocations != NULL);
87 free_publickey(publickey);
95 * cached_getkeysigs - Gets the signatures on a key.
96 * @keyid: The key we want the signatures for.
98 * This function gets the signatures on a key. It's the same as the
99 * getkeysigs function above except we use the hash module to cache the
100 * data so if we need it again it's already loaded.
102 struct ll *cached_getkeysigs(uint64_t keyid)
104 struct stats_key *key = NULL;
105 struct stats_key *signedkey = NULL;
106 struct ll *cursig = NULL;
107 bool revoked = false;
113 key = createandaddtohash(keyid);
115 if (key->gotsigs == false) {
116 key->sigs = getkeysigs(key->keyid, &revoked);
117 key->revoked = revoked;
118 for (cursig = key->sigs; cursig != NULL;
119 cursig = cursig->next) {
120 signedkey = (struct stats_key *) cursig->object;
121 signedkey->signs = lladd(signedkey->signs, key);
129 #ifdef NEED_GETFULLKEYID
131 * getfullkeyid - Maps a 32bit key id to a 64bit one.
132 * @keyid: The 32bit keyid.
134 * This function maps a 32bit key id to the full 64bit one. It returns the
135 * full keyid. If the key isn't found a keyid of 0 is returned.
137 uint64_t getfullkeyid(uint64_t keyid)
139 struct openpgp_publickey *publickey = NULL;
141 if (keyid < 0x100000000LL) {
142 fetch_key(keyid, &publickey, false);
143 if (publickey != NULL) {
144 keyid = get_keyid(publickey);
145 free_publickey(publickey);
156 #ifdef NEED_UPDATEKEYS
158 * update_keys - Takes a list of public keys and updates them in the DB.
159 * @keys: The keys to update in the DB.
160 * @sendsync: Should we send a sync mail to our peers.
162 * Takes a list of keys and adds them to the database, merging them with
163 * the key in the database if it's already present there. The key list is
164 * update to contain the minimum set of updates required to get from what
165 * we had before to what we have now (ie the set of data that was added to
166 * the DB). Returns the number of entirely new keys added.
168 int update_keys(struct openpgp_publickey **keys, bool sendsync)
170 struct openpgp_publickey *curkey = NULL;
171 struct openpgp_publickey *oldkey = NULL;
172 struct openpgp_publickey *prev = NULL;
176 for (curkey = *keys; curkey != NULL; curkey = curkey->next) {
177 intrans = starttrans();
178 logthing(LOGTHING_INFO,
179 "Fetching key 0x%llX, result: %d",
181 fetch_key(get_keyid(curkey), &oldkey, intrans));
184 * If we already have the key stored in the DB then merge it
185 * with the new one that's been supplied. Otherwise the key
186 * we've just got is the one that goes in the DB and also the
187 * one that we send out.
189 if (oldkey != NULL) {
190 merge_keys(oldkey, curkey);
191 if (curkey->revocations == NULL &&
192 curkey->uids == NULL &&
193 curkey->subkeys == NULL) {
195 *keys = curkey->next;
197 prev->next = curkey->next;
199 free_publickey(curkey);
204 logthing(LOGTHING_INFO,
205 "Merged key; storing updated key.");
206 store_key(oldkey, intrans, true);
208 free_publickey(oldkey);
211 logthing(LOGTHING_INFO,
212 "Storing completely new key.");
213 store_key(curkey, intrans, false);
220 if (sendsync && keys != NULL) {
226 #endif /* NEED_UPDATEKEYS */