2 * keydb_dynamic.c - backend that can load the other backends
4 * Copyright 2005 Brett Parker <iDunno@sommitrealweird.co.uk>
6 * This program is free software: you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License as published by the Free
8 * Software Foundation; version 2 of the License.
10 * This program is distributed in the hope that it will be useful, but WITHOUT
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
15 * You should have received a copy of the GNU General Public License along with
16 * this program. If not, see <https://www.gnu.org/licenses/>.
23 #include "decodekey.h"
27 #include "keystructs.h"
31 #include "onak-conf.h"
36 struct onak_dynamic_dbctx {
37 struct onak_dbctx *loadeddbctx;
41 static bool dynamic_starttrans(struct onak_dbctx *dbctx)
43 struct onak_dynamic_dbctx *privctx =
44 (struct onak_dynamic_dbctx *) dbctx->priv;
46 return privctx->loadeddbctx->starttrans(privctx->loadeddbctx);
49 static void dynamic_endtrans(struct onak_dbctx *dbctx)
51 struct onak_dynamic_dbctx *privctx =
52 (struct onak_dynamic_dbctx *) dbctx->priv;
54 privctx->loadeddbctx->endtrans(privctx->loadeddbctx);
57 static int dynamic_fetch_key_id(struct onak_dbctx *dbctx, uint64_t keyid,
58 struct openpgp_publickey **publickey, bool intrans)
60 struct onak_dynamic_dbctx *privctx =
61 (struct onak_dynamic_dbctx *) dbctx->priv;
63 return privctx->loadeddbctx->fetch_key_id(privctx->loadeddbctx, keyid,
67 static int dynamic_fetch_key_fp(struct onak_dbctx *dbctx,
68 struct openpgp_fingerprint *fingerprint,
69 struct openpgp_publickey **publickey, bool intrans)
71 struct onak_dynamic_dbctx *privctx =
72 (struct onak_dynamic_dbctx *) dbctx->priv;
74 return privctx->loadeddbctx->fetch_key_fp(privctx->loadeddbctx,
75 fingerprint, publickey, intrans);
78 static int dynamic_fetch_key_text(struct onak_dbctx *dbctx,
80 struct openpgp_publickey **publickey)
82 struct onak_dynamic_dbctx *privctx =
83 (struct onak_dynamic_dbctx *) dbctx->priv;
85 return privctx->loadeddbctx->fetch_key_text(privctx->loadeddbctx,
89 static int dynamic_fetch_key_skshash(struct onak_dbctx *dbctx,
90 const struct skshash *hash,
91 struct openpgp_publickey **publickey)
93 struct onak_dynamic_dbctx *privctx =
94 (struct onak_dynamic_dbctx *) dbctx->priv;
96 return privctx->loadeddbctx->fetch_key_skshash(privctx->loadeddbctx,
100 static int dynamic_store_key(struct onak_dbctx *dbctx,
101 struct openpgp_publickey *publickey, bool intrans,
104 struct onak_dynamic_dbctx *privctx =
105 (struct onak_dynamic_dbctx *) dbctx->priv;
107 return privctx->loadeddbctx->store_key(privctx->loadeddbctx,
108 publickey, intrans, update);
111 static int dynamic_delete_key(struct onak_dbctx *dbctx,
112 struct openpgp_fingerprint *fp,
115 struct onak_dynamic_dbctx *privctx =
116 (struct onak_dynamic_dbctx *) dbctx->priv;
118 return privctx->loadeddbctx->delete_key(privctx->loadeddbctx,
122 static int dynamic_update_keys(struct onak_dbctx *dbctx,
123 struct openpgp_publickey **keys, bool sendsync)
125 struct onak_dynamic_dbctx *privctx =
126 (struct onak_dynamic_dbctx *) dbctx->priv;
128 return privctx->loadeddbctx->update_keys(privctx->loadeddbctx,
132 static struct ll *dynamic_getkeysigs(struct onak_dbctx *dbctx,
133 uint64_t keyid, bool *revoked)
135 struct onak_dynamic_dbctx *privctx =
136 (struct onak_dynamic_dbctx *) dbctx->priv;
138 return privctx->loadeddbctx->getkeysigs(privctx->loadeddbctx,
142 static struct ll *dynamic_cached_getkeysigs(struct onak_dbctx *dbctx,
145 struct onak_dynamic_dbctx *privctx =
146 (struct onak_dynamic_dbctx *) dbctx->priv;
148 return privctx->loadeddbctx->cached_getkeysigs(privctx->loadeddbctx,
152 static char *dynamic_keyid2uid(struct onak_dbctx *dbctx,
155 struct onak_dynamic_dbctx *privctx =
156 (struct onak_dynamic_dbctx *) dbctx->priv;
158 return privctx->loadeddbctx->keyid2uid(privctx->loadeddbctx,
162 static int dynamic_iterate_keys(struct onak_dbctx *dbctx,
163 void (*iterfunc)(void *ctx, struct openpgp_publickey *key),
166 struct onak_dynamic_dbctx *privctx =
167 (struct onak_dynamic_dbctx *) dbctx->priv;
169 return privctx->loadeddbctx->iterate_keys(privctx->loadeddbctx,
173 static void dynamic_cleanupdb(struct onak_dbctx *dbctx)
175 struct onak_dynamic_dbctx *privctx =
176 (struct onak_dynamic_dbctx *) dbctx->priv;
178 if (privctx->loadeddbctx != NULL) {
179 if (privctx->loadeddbctx->cleanupdb != NULL) {
180 privctx->loadeddbctx->cleanupdb(privctx->loadeddbctx);
181 privctx->loadeddbctx = NULL;
185 if (privctx->backend_handle != NULL) {
186 dlclose(privctx->backend_handle);
187 privctx->backend_handle = NULL;
190 if (dbctx->priv != NULL) {
200 struct onak_dbctx *keydb_dynamic_init(struct onak_db_config *dbcfg,
203 struct onak_dbctx *dbctx;
206 struct onak_dbctx *(*backend_init)(struct onak_db_config *, bool);
207 struct onak_dynamic_dbctx *privctx;
211 logthing(LOGTHING_CRITICAL,
212 "No backend database configuration supplied.");
216 dbctx = malloc(sizeof(struct onak_dbctx));
222 dbctx->config = dbcfg;
223 dbctx->priv = privctx = malloc(sizeof(struct onak_dynamic_dbctx));
224 if (dbctx->priv == NULL) {
230 if (config.use_keyd) {
234 if (!config.db_backend) {
235 logthing(LOGTHING_CRITICAL, "No database backend defined.");
239 if (config.backends_dir == NULL) {
240 soname = malloc(strlen(type)
241 + strlen("./libkeydb_")
245 sprintf(soname, "./libkeydb_%s.so", type);
247 soname = malloc(strlen(type)
248 + strlen("/libkeydb_")
250 + strlen(config.backends_dir)
253 sprintf(soname, "%s/libkeydb_%s.so", config.backends_dir,
257 logthing(LOGTHING_INFO, "Loading dynamic backend: %s", soname);
259 privctx->backend_handle = dlopen(soname, RTLD_LAZY);
260 if (privctx->backend_handle == NULL) {
261 logthing(LOGTHING_CRITICAL,
262 "Failed to open handle to library '%s': %s",
269 initname = malloc(strlen(config.db_backend)
273 sprintf(initname, "keydb_%s_init", type);
275 *(void **) (&backend_init) = dlsym(privctx->backend_handle, initname);
278 if (backend_init == NULL) {
279 logthing(LOGTHING_CRITICAL,
280 "Failed to find dbfuncs structure in library "
281 "'%s' : %s", soname, dlerror());
287 privctx->loadeddbctx = backend_init(dbcfg, readonly);
289 if (privctx->loadeddbctx == NULL) {
290 logthing(LOGTHING_CRITICAL,
291 "Failed to initialise dynamic backend: %s",
300 if (privctx->loadeddbctx != NULL) {
301 dbctx->cleanupdb = dynamic_cleanupdb;
302 dbctx->starttrans = dynamic_starttrans;
303 dbctx->endtrans = dynamic_endtrans;
304 dbctx->fetch_key_id = dynamic_fetch_key_id;
305 dbctx->fetch_key_fp = dynamic_fetch_key_fp;
306 dbctx->fetch_key_text = dynamic_fetch_key_text;
307 dbctx->fetch_key_skshash = dynamic_fetch_key_skshash;
308 dbctx->store_key = dynamic_store_key;
309 dbctx->update_keys = dynamic_update_keys;
310 dbctx->delete_key = dynamic_delete_key;
311 dbctx->getkeysigs = dynamic_getkeysigs;
312 dbctx->cached_getkeysigs = dynamic_cached_getkeysigs;
313 dbctx->keyid2uid = dynamic_keyid2uid;
314 dbctx->iterate_keys = dynamic_iterate_keys;