2 * Copyright (c) 1997 - 2001 Kungliga Tekniska Högskolan
3 * (Royal Institute of Technology, Stockholm, Sweden).
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
17 * 3. Neither the name of the Institute nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
38 #if defined(HAVE_DB_185_H)
40 #elif defined(HAVE_DB_H)
44 static krb5_error_code
45 DB_close(krb5_context context, HDB *db)
47 DB *d = (DB*)db->hdb_db;
52 static krb5_error_code
53 DB_destroy(krb5_context context, HDB *db)
57 ret = hdb_clear_master_key (context, db);
63 static krb5_error_code
64 DB_lock(krb5_context context, HDB *db, int operation)
66 DB *d = (DB*)db->hdb_db;
69 krb5_set_error_message(context, HDB_ERR_CANT_LOCK_DB,
70 "Can't lock database: %s", db->hdb_name);
71 return HDB_ERR_CANT_LOCK_DB;
73 return hdb_lock(fd, operation);
76 static krb5_error_code
77 DB_unlock(krb5_context context, HDB *db)
79 DB *d = (DB*)db->hdb_db;
82 krb5_set_error_message(context, HDB_ERR_CANT_LOCK_DB,
83 "Can't unlock database: %s", db->hdb_name);
84 return HDB_ERR_CANT_LOCK_DB;
86 return hdb_unlock(fd);
90 static krb5_error_code
91 DB_seq(krb5_context context, HDB *db,
92 unsigned flags, hdb_entry_ex *entry, int flag)
94 DB *d = (DB*)db->hdb_db;
96 krb5_data key_data, data;
99 code = db->hdb_lock(context, db, HDB_RLOCK);
101 krb5_set_error_message(context, HDB_ERR_DB_INUSE, "Database %s in use", db->hdb_name);
102 return HDB_ERR_DB_INUSE;
104 code = (*d->seq)(d, &key, &value, flag);
105 db->hdb_unlock(context, db); /* XXX check value */
108 krb5_set_error_message(context, code, "Database %s seq error: %s",
109 db->hdb_name, strerror(code));
113 krb5_clear_error_message(context);
114 return HDB_ERR_NOENTRY;
117 key_data.data = key.data;
118 key_data.length = key.size;
119 data.data = value.data;
120 data.length = value.size;
121 memset(entry, 0, sizeof(*entry));
122 if (hdb_value2entry(context, &data, &entry->entry))
123 return DB_seq(context, db, flags, entry, R_NEXT);
124 if (db->hdb_master_key_set && (flags & HDB_F_DECRYPT)) {
125 code = hdb_unseal_keys (context, db, &entry->entry);
127 hdb_free_entry (context, entry);
129 if (code == 0 && entry->entry.principal == NULL) {
130 entry->entry.principal = malloc(sizeof(*entry->entry.principal));
131 if (entry->entry.principal == NULL) {
133 krb5_set_error_message(context, code, "malloc: out of memory");
134 hdb_free_entry (context, entry);
136 hdb_key2principal(context, &key_data, entry->entry.principal);
143 static krb5_error_code
144 DB_firstkey(krb5_context context, HDB *db, unsigned flags, hdb_entry_ex *entry)
146 return DB_seq(context, db, flags, entry, R_FIRST);
150 static krb5_error_code
151 DB_nextkey(krb5_context context, HDB *db, unsigned flags, hdb_entry_ex *entry)
153 return DB_seq(context, db, flags, entry, R_NEXT);
156 static krb5_error_code
157 DB_rename(krb5_context context, HDB *db, const char *new_name)
162 asprintf(&old, "%s.db", db->hdb_name);
163 asprintf(&new, "%s.db", new_name);
164 ret = rename(old, new);
171 db->hdb_name = strdup(new_name);
175 static krb5_error_code
176 DB__get(krb5_context context, HDB *db, krb5_data key, krb5_data *reply)
178 DB *d = (DB*)db->hdb_db;
184 code = db->hdb_lock(context, db, HDB_RLOCK);
187 code = (*d->get)(d, &k, &v, 0);
188 db->hdb_unlock(context, db);
191 krb5_set_error_message(context, code, "Database %s get error: %s",
192 db->hdb_name, strerror(code));
196 krb5_clear_error_message(context);
197 return HDB_ERR_NOENTRY;
200 krb5_data_copy(reply, v.data, v.size);
204 static krb5_error_code
205 DB__put(krb5_context context, HDB *db, int replace,
206 krb5_data key, krb5_data value)
208 DB *d = (DB*)db->hdb_db;
215 v.size = value.length;
216 code = db->hdb_lock(context, db, HDB_WLOCK);
219 code = (*d->put)(d, &k, &v, replace ? 0 : R_NOOVERWRITE);
220 db->hdb_unlock(context, db);
223 krb5_set_error_message(context, code, "Database %s put error: %s",
224 db->hdb_name, strerror(code));
228 krb5_clear_error_message(context);
229 return HDB_ERR_EXISTS;
234 static krb5_error_code
235 DB__del(krb5_context context, HDB *db, krb5_data key)
237 DB *d = (DB*)db->hdb_db;
239 krb5_error_code code;
242 code = db->hdb_lock(context, db, HDB_WLOCK);
245 code = (*d->del)(d, &k, 0);
246 db->hdb_unlock(context, db);
249 krb5_set_error_message(context, code, "Database %s put error: %s",
250 db->hdb_name, strerror(code));
258 static krb5_error_code
259 DB_open(krb5_context context, HDB *db, int flags, mode_t mode)
264 asprintf(&fn, "%s.db", db->hdb_name);
266 krb5_set_error_message(context, ENOMEM, "malloc: out of memory");
269 db->hdb_db = dbopen(fn, flags, mode, DB_BTREE, NULL);
271 /* try to open without .db extension */
272 if(db->hdb_db == NULL && errno == ENOENT)
273 db->hdb_db = dbopen(db->hdb_name, flags, mode, DB_BTREE, NULL);
274 if(db->hdb_db == NULL) {
276 krb5_set_error_message(context, ret, "dbopen (%s): %s",
277 db->hdb_name, strerror(ret));
280 if((flags & O_ACCMODE) == O_RDONLY)
281 ret = hdb_check_db_format(context, db);
283 ret = hdb_init_db(context, db);
284 if(ret == HDB_ERR_NOENTRY) {
285 krb5_clear_error_message(context);
289 DB_close(context, db);
290 krb5_set_error_message(context, ret, "hdb_open: failed %s database %s",
291 (flags & O_ACCMODE) == O_RDONLY ?
292 "checking format of" : "initialize",
299 hdb_db_create(krb5_context context, HDB **db,
300 const char *filename)
302 *db = calloc(1, sizeof(**db));
304 krb5_set_error_message(context, ENOMEM, "malloc: out of memory");
308 (*db)->hdb_db = NULL;
309 (*db)->hdb_name = strdup(filename);
310 if ((*db)->hdb_name == NULL) {
313 krb5_set_error_message(context, ENOMEM, "malloc: out of memory");
316 (*db)->hdb_master_key_set = 0;
317 (*db)->hdb_openp = 0;
318 (*db)->hdb_capability_flags = HDB_CAP_F_HANDLE_ENTERPRISE_PRINCIPAL;
319 (*db)->hdb_open = DB_open;
320 (*db)->hdb_close = DB_close;
321 (*db)->hdb_fetch_kvno = _hdb_fetch_kvno;
322 (*db)->hdb_store = _hdb_store;
323 (*db)->hdb_remove = _hdb_remove;
324 (*db)->hdb_firstkey = DB_firstkey;
325 (*db)->hdb_nextkey= DB_nextkey;
326 (*db)->hdb_lock = DB_lock;
327 (*db)->hdb_unlock = DB_unlock;
328 (*db)->hdb_rename = DB_rename;
329 (*db)->hdb__get = DB__get;
330 (*db)->hdb__put = DB__put;
331 (*db)->hdb__del = DB__del;
332 (*db)->hdb_destroy = DB_destroy;
336 #endif /* HAVE_DB1 */