1 /* $NetBSD: init.c,v 1.2 2021/08/14 16:15:02 christos Exp $ */
2
3 /* OpenLDAP WiredTiger backend */
4 /* $OpenLDAP$ */
5 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
6 *
7 * Copyright 2002-2021 The OpenLDAP Foundation.
8 * All rights reserved.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted only as authorized by the OpenLDAP
12 * Public License.
13 *
14 * A copy of this license is available in the file LICENSE in the
15 * top-level directory of the distribution or, alternatively, at
16 * <http://www.OpenLDAP.org/license.html>.
17 */
18 /* ACKNOWLEDGEMENTS:
19 * This work was developed by HAMANO Tsukasa <hamano@osstech.co.jp>
20 * based on back-bdb for inclusion in OpenLDAP Software.
21 * WiredTiger is a product of MongoDB Inc.
22 */
23
24 #include <sys/cdefs.h>
25 __RCSID("$NetBSD: init.c,v 1.2 2021/08/14 16:15:02 christos Exp $");
26
27 #include "portable.h"
28
29 #include <stdio.h>
30 #include <ac/string.h>
31 #include "back-wt.h"
32 #include "slap-config.h"
33
34 static int
wt_db_init(BackendDB * be,ConfigReply * cr)35 wt_db_init( BackendDB *be, ConfigReply *cr )
36 {
37 struct wt_info *wi;
38
39 Debug( LDAP_DEBUG_TRACE,
40 LDAP_XSTRING(wt_db_init) ": Initializing wt backend\n" );
41
42 /* allocate backend-database-specific stuff */
43 wi = ch_calloc( 1, sizeof(struct wt_info) );
44
45 wi->wi_dbenv_home = ch_strdup( SLAPD_DEFAULT_DB_DIR );
46 wi->wi_dbenv_config = ch_strdup("create");
47 wi->wi_lastid = 0;
48 wi->wi_search_stack_depth = DEFAULT_SEARCH_STACK_DEPTH;
49 wi->wi_search_stack = NULL;
50
51 be->be_private = wi;
52 be->be_cf_ocs = be->bd_info->bi_cf_ocs;
53
54 return LDAP_SUCCESS;
55 }
56
57 static int
wt_db_open(BackendDB * be,ConfigReply * cr)58 wt_db_open( BackendDB *be, ConfigReply *cr )
59 {
60 struct wt_info *wi = (struct wt_info *) be->be_private;
61 int rc;
62 struct stat st;
63 WT_CONNECTION *conn;
64 WT_SESSION *session;
65
66 if ( be->be_suffix == NULL ) {
67 Debug( LDAP_DEBUG_ANY,
68 LDAP_XSTRING(wt_db_open) ": need suffix.\n" );
69 return -1;
70 }
71
72 Debug( LDAP_DEBUG_ARGS,
73 LDAP_XSTRING(wt_db_open) ": \"%s\"\n",
74 be->be_suffix[0].bv_val );
75
76 /* Check existence of home. Any error means trouble */
77 rc = stat( wi->wi_dbenv_home, &st );
78 if( rc ) {
79 int saved_errno = errno;
80 Debug( LDAP_DEBUG_ANY,
81 LDAP_XSTRING(wt_db_open) ": database \"%s\": "
82 "cannot access database directory \"%s\" (%d).\n",
83 be->be_suffix[0].bv_val, wi->wi_dbenv_home, saved_errno );
84 return -1;
85 }
86
87 /* Open and create database */
88 rc = wiredtiger_open(wi->wi_dbenv_home, NULL,
89 wi->wi_dbenv_config, &conn);
90 if( rc ) {
91 int saved_errno = errno;
92 Debug( LDAP_DEBUG_ANY,
93 LDAP_XSTRING(wt_db_open) ": database \"%s\": "
94 "cannot open database \"%s\" (%d).\n",
95 be->be_suffix[0].bv_val, wi->wi_dbenv_home, saved_errno );
96 return -1;
97 }
98
99 rc = conn->open_session(conn, NULL, NULL, &session);
100 if( rc ) {
101 Debug( LDAP_DEBUG_ANY,
102 LDAP_XSTRING(wt_db_open) ": database \"%s\": "
103 "cannot open session: \"%s\"\n",
104 be->be_suffix[0].bv_val, wiredtiger_strerror(rc) );
105 return -1;
106 }
107
108 rc = session->create(session,
109 WT_TABLE_ID2ENTRY,
110 "key_format=Q,"
111 "value_format=Su,"
112 "columns=(id,dn,entry)");
113 if( rc ) {
114 Debug( LDAP_DEBUG_ANY,
115 LDAP_XSTRING(wt_db_open) ": database \"%s\": "
116 "cannot create entry table: \"%s\"\n",
117 be->be_suffix[0].bv_val, wiredtiger_strerror(rc) );
118 return -1;
119 }
120
121 rc = session->create(session,
122 WT_TABLE_DN2ID,
123 "key_format=S,"
124 "value_format=QQS,"
125 "columns=(ndn,id,pid,revdn)");
126 if( rc ) {
127 Debug( LDAP_DEBUG_ANY,
128 LDAP_XSTRING(wt_db_open) ": database \"%s\": "
129 "cannot create entry table: \"%s\"\n",
130 be->be_suffix[0].bv_val, wiredtiger_strerror(rc) );
131 return -1;
132 }
133
134 /* not using dn2id index for id2entry table */
135 rc = session->create(session, WT_INDEX_DN, "columns=(dn)");
136 if( rc ) {
137 Debug( LDAP_DEBUG_ANY,
138 LDAP_XSTRING(wt_db_open) ": database \"%s\": "
139 "cannot create dn index: \"%s\"\n",
140 be->be_suffix[0].bv_val, wiredtiger_strerror(rc) );
141 return -1;
142 }
143
144 rc = session->create(session, WT_INDEX_PID, "columns=(pid)");
145 if( rc ) {
146 Debug( LDAP_DEBUG_ANY,
147 LDAP_XSTRING(wt_db_open) ": database \"%s\": "
148 "cannot create pid index: \"%s\"\n",
149 be->be_suffix[0].bv_val, wiredtiger_strerror(rc) );
150 return -1;
151 }
152
153 rc = session->create(session, WT_INDEX_REVDN, "columns=(revdn)");
154 if( rc ) {
155 Debug( LDAP_DEBUG_ANY,
156 LDAP_XSTRING(wt_db_open) ": database \"%s\": "
157 "cannot create revdn index: \"%s\"\n",
158 be->be_suffix[0].bv_val, wiredtiger_strerror(rc) );
159 return -1;
160 }
161
162 rc = wt_last_id( be, session, &wi->wi_lastid);
163 if (rc) {
164 snprintf( cr->msg, sizeof(cr->msg), "database \"%s\": "
165 "last_id() failed: %s(%d).",
166 be->be_suffix[0].bv_val, wiredtiger_strerror(rc), rc );
167 Debug( LDAP_DEBUG_ANY,
168 LDAP_XSTRING(wt_db_open) ": %s\n",
169 cr->msg );
170 return rc;
171 }
172
173 session->close(session, NULL);
174 wi->wi_conn = conn;
175 wi->wi_flags |= WT_IS_OPEN;
176
177 return LDAP_SUCCESS;
178 }
179
180 static int
wt_db_close(BackendDB * be,ConfigReply * cr)181 wt_db_close( BackendDB *be, ConfigReply *cr )
182 {
183 struct wt_info *wi = (struct wt_info *) be->be_private;
184 int rc;
185
186 rc = wi->wi_conn->close(wi->wi_conn, NULL);
187 if( rc ) {
188 int saved_errno = errno;
189 Debug( LDAP_DEBUG_ANY,
190 LDAP_XSTRING(wt_db_close)
191 ": cannot close database (%d).\n",
192 saved_errno );
193 return -1;
194 }
195
196 wi->wi_flags &= ~WT_IS_OPEN;
197
198 return LDAP_SUCCESS;
199 }
200
201 static int
wt_db_destroy(Backend * be,ConfigReply * cr)202 wt_db_destroy( Backend *be, ConfigReply *cr )
203 {
204 struct wt_info *wi = (struct wt_info *) be->be_private;
205
206 if( wi->wi_dbenv_home ) {
207 ch_free( wi->wi_dbenv_home );
208 wi->wi_dbenv_home = NULL;
209 }
210 if( wi->wi_dbenv_config ) {
211 ch_free( wi->wi_dbenv_config );
212 wi->wi_dbenv_config = NULL;
213 }
214
215 wt_attr_index_destroy( wi );
216 ch_free( wi );
217 be->be_private = NULL;
218
219 return LDAP_SUCCESS;
220 }
221
222 int
wt_back_initialize(BackendInfo * bi)223 wt_back_initialize( BackendInfo *bi )
224 {
225 static char *controls[] = {
226 LDAP_CONTROL_ASSERT,
227 LDAP_CONTROL_MANAGEDSAIT,
228 LDAP_CONTROL_NOOP,
229 LDAP_CONTROL_PAGEDRESULTS,
230 LDAP_CONTROL_PRE_READ,
231 LDAP_CONTROL_POST_READ,
232 LDAP_CONTROL_SUBENTRIES,
233 LDAP_CONTROL_X_PERMISSIVE_MODIFY,
234 NULL
235 };
236
237 /* initialize the database system */
238 Debug( LDAP_DEBUG_TRACE,
239 LDAP_XSTRING(wt_back_initialize)
240 ": initialize WiredTiger backend\n" );
241
242 bi->bi_flags |=
243 SLAP_BFLAG_INCREMENT |
244 SLAP_BFLAG_SUBENTRIES |
245 SLAP_BFLAG_ALIASES |
246 SLAP_BFLAG_REFERRALS;
247
248 bi->bi_controls = controls;
249 /* version check */
250 Debug( LDAP_DEBUG_TRACE,
251 LDAP_XSTRING(wt_back_initialize) ": %s\n",
252 wiredtiger_version(NULL, NULL, NULL) );
253
254 bi->bi_open = 0;
255 bi->bi_close = 0;
256 bi->bi_config = 0;
257 bi->bi_destroy = 0;
258
259 bi->bi_db_init = wt_db_init;
260 bi->bi_db_config = config_generic_wrapper;
261 bi->bi_db_open = wt_db_open;
262 bi->bi_db_close = wt_db_close;
263 bi->bi_db_destroy = wt_db_destroy;
264
265 bi->bi_op_add = wt_add;
266 bi->bi_op_bind = wt_bind;
267 bi->bi_op_unbind = 0;
268 bi->bi_op_search = wt_search;
269 bi->bi_op_compare = wt_compare;
270 bi->bi_op_modify = wt_modify;
271 bi->bi_op_modrdn = 0;
272 bi->bi_op_delete = wt_delete;
273 bi->bi_op_abandon = 0;
274
275 bi->bi_extended = 0;
276
277 bi->bi_chk_referrals = 0;
278 bi->bi_operational = wt_operational;
279
280 bi->bi_entry_release_rw = wt_entry_release;
281 bi->bi_entry_get_rw = wt_entry_get;
282
283 bi->bi_tool_entry_open = wt_tool_entry_open;
284 bi->bi_tool_entry_close = wt_tool_entry_close;
285 bi->bi_tool_entry_first = backend_tool_entry_first;
286 bi->bi_tool_entry_first_x = wt_tool_entry_first_x;
287 bi->bi_tool_entry_next = wt_tool_entry_next;
288 bi->bi_tool_entry_get = wt_tool_entry_get;
289 bi->bi_tool_entry_put = wt_tool_entry_put;
290 bi->bi_tool_entry_reindex = wt_tool_entry_reindex;
291
292 bi->bi_connection_init = 0;
293 bi->bi_connection_destroy = 0;
294
295 return wt_back_init_cf( bi );
296 }
297
298 #if SLAPD_WT == SLAPD_MOD_DYNAMIC
299
300 /* conditionally define the init_module() function */
301 SLAP_BACKEND_INIT_MODULE( wt )
302
303 #endif /* SLAPD_WT == SLAPD_MOD_DYNAMIC */
304
305 /*
306 * Local variables:
307 * indent-tabs-mode: t
308 * tab-width: 4
309 * c-basic-offset: 4
310 * End:
311 */
312