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[netbsd-mini2440.git] / external / bsd / openldap / dist / servers / slapd / back-bdb / dn2id.c
blob1d90add064bfa4850573dccbd6d44095b5a0ee95
1 /* dn2id.c - routines to deal with the dn2id index */
2 /* $OpenLDAP: pkg/ldap/servers/slapd/back-bdb/dn2id.c,v 1.137.2.10 2008/05/20 00:14:04 quanah Exp $ */
3 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
4 *
5 * Copyright 2000-2008 The OpenLDAP Foundation.
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted only as authorized by the OpenLDAP
10 * Public License.
11 *
12 * A copy of this license is available in the file LICENSE in the
13 * top-level directory of the distribution or, alternatively, at
14 * <http://www.OpenLDAP.org/license.html>.
15 */
16
17 #include "portable.h"
18
19 #include <stdio.h>
20 #include <ac/string.h>
21
22 #include "back-bdb.h"
23 #include "idl.h"
24 #include "lutil.h"
25
26 #define bdb_dn2id_lock BDB_SYMBOL(dn2id_lock)
27
28 static int
29 bdb_dn2id_lock( struct bdb_info *bdb, struct berval *dn,
30 int rw, BDB_LOCKER locker, DB_LOCK *lock )
31 {
32 int rc;
33 DBT lockobj;
34 int db_rw;
35
36 if (!locker)
37 return 0;
38
39 if (rw)
40 db_rw = DB_LOCK_WRITE;
41 else
42 db_rw = DB_LOCK_READ;
43
44 lockobj.data = dn->bv_val;
45 lockobj.size = dn->bv_len;
46
47 rc = LOCK_GET(bdb->bi_dbenv, BDB_LOCKID(locker), DB_LOCK_NOWAIT,
48 &lockobj, db_rw, lock);
49 return rc;
50 }
51
52 #ifndef BDB_HIER
53 int
54 bdb_dn2id_add(
55 Operation *op,
56 DB_TXN *txn,
57 EntryInfo *eip,
58 Entry *e )
59 {
60 struct bdb_info *bdb = (struct bdb_info *) op->o_bd->be_private;
61 DB *db = bdb->bi_dn2id->bdi_db;
62 int rc;
63 DBT key, data;
64 ID nid;
65 char *buf;
66 struct berval ptr, pdn;
67
68 Debug( LDAP_DEBUG_TRACE, "=> bdb_dn2id_add 0x%lx: \"%s\"\n",
69 e->e_id, e->e_ndn, 0 );
70 assert( e->e_id != NOID );
71
72 DBTzero( &key );
73 key.size = e->e_nname.bv_len + 2;
74 key.ulen = key.size;
75 key.flags = DB_DBT_USERMEM;
76 buf = op->o_tmpalloc( key.size, op->o_tmpmemctx );
77 key.data = buf;
78 buf[0] = DN_BASE_PREFIX;
79 ptr.bv_val = buf + 1;
80 ptr.bv_len = e->e_nname.bv_len;
81 AC_MEMCPY( ptr.bv_val, e->e_nname.bv_val, e->e_nname.bv_len );
82 ptr.bv_val[ptr.bv_len] = '\0';
83
84 DBTzero( &data );
85 data.data = &nid;
86 data.size = sizeof( nid );
87 BDB_ID2DISK( e->e_id, &nid );
88
89 /* store it -- don't override */
90 rc = db->put( db, txn, &key, &data, DB_NOOVERWRITE );
91 if( rc != 0 ) {
92 Debug( LDAP_DEBUG_ANY, "=> bdb_dn2id_add 0x%lx: put failed: %s %d\n",
93 e->e_id, db_strerror(rc), rc );
94 goto done;
95 }
96
97 #ifndef BDB_MULTIPLE_SUFFIXES
98 if( !be_issuffix( op->o_bd, &ptr ))
99 #endif
100 {
101 buf[0] = DN_SUBTREE_PREFIX;
102 rc = db->put( db, txn, &key, &data, DB_NOOVERWRITE );
103 if( rc != 0 ) {
104 Debug( LDAP_DEBUG_ANY,
105 "=> bdb_dn2id_add 0x%lx: subtree (%s) put failed: %d\n",
106 e->e_id, ptr.bv_val, rc );
107 goto done;
108 }
109
110 #ifdef BDB_MULTIPLE_SUFFIXES
111 if( !be_issuffix( op->o_bd, &ptr ))
112 #endif
113 {
114 dnParent( &ptr, &pdn );
115
116 key.size = pdn.bv_len + 2;
117 key.ulen = key.size;
118 pdn.bv_val[-1] = DN_ONE_PREFIX;
119 key.data = pdn.bv_val-1;
120 ptr = pdn;
121
122 rc = bdb_idl_insert_key( op->o_bd, db, txn, &key, e->e_id );
123
124 if( rc != 0 ) {
125 Debug( LDAP_DEBUG_ANY,
126 "=> bdb_dn2id_add 0x%lx: parent (%s) insert failed: %d\n",
127 e->e_id, ptr.bv_val, rc );
128 goto done;
129 }
130 }
131
132 #ifndef BDB_MULTIPLE_SUFFIXES
133 while( !be_issuffix( op->o_bd, &ptr ))
134 #else
135 for (;;)
136 #endif
137 {
138 ptr.bv_val[-1] = DN_SUBTREE_PREFIX;
139
140 rc = bdb_idl_insert_key( op->o_bd, db, txn, &key, e->e_id );
141
142 if( rc != 0 ) {
143 Debug( LDAP_DEBUG_ANY,
144 "=> bdb_dn2id_add 0x%lx: subtree (%s) insert failed: %d\n",
145 e->e_id, ptr.bv_val, rc );
146 break;
147 }
148 #ifdef BDB_MULTIPLE_SUFFIXES
149 if( be_issuffix( op->o_bd, &ptr )) break;
150 #endif
151 dnParent( &ptr, &pdn );
152
153 key.size = pdn.bv_len + 2;
154 key.ulen = key.size;
155 key.data = pdn.bv_val - 1;
156 ptr = pdn;
157 }
158 }
159
160 done:
161 op->o_tmpfree( buf, op->o_tmpmemctx );
162 Debug( LDAP_DEBUG_TRACE, "<= bdb_dn2id_add 0x%lx: %d\n", e->e_id, rc, 0 );
163 return rc;
164 }
165
166 int
167 bdb_dn2id_delete(
168 Operation *op,
169 DB_TXN *txn,
170 EntryInfo *eip,
171 Entry *e )
172 {
173 struct bdb_info *bdb = (struct bdb_info *) op->o_bd->be_private;
174 DB *db = bdb->bi_dn2id->bdi_db;
175 char *buf;
176 DBT key;
177 DB_LOCK lock;
178 struct berval pdn, ptr;
179 int rc;
180
181 Debug( LDAP_DEBUG_TRACE, "=> bdb_dn2id_delete 0x%lx: \"%s\"\n",
182 e->e_id, e->e_ndn, 0 );
183
184 DBTzero( &key );
185 key.size = e->e_nname.bv_len + 2;
186 buf = op->o_tmpalloc( key.size, op->o_tmpmemctx );
187 key.data = buf;
188 key.flags = DB_DBT_USERMEM;
189 buf[0] = DN_BASE_PREFIX;
190 ptr.bv_val = buf+1;
191 ptr.bv_len = e->e_nname.bv_len;
192 AC_MEMCPY( ptr.bv_val, e->e_nname.bv_val, e->e_nname.bv_len );
193 ptr.bv_val[ptr.bv_len] = '\0';
194
195 /* We hold this lock until the TXN completes */
196 rc = bdb_dn2id_lock( bdb, &e->e_nname, 1, TXN_ID( txn ), &lock );
197 if ( rc ) goto done;
198
199 /* delete it */
200 rc = db->del( db, txn, &key, 0 );
201 if( rc != 0 ) {
202 Debug( LDAP_DEBUG_ANY, "=> bdb_dn2id_delete 0x%lx: delete failed: %s %d\n",
203 e->e_id, db_strerror(rc), rc );
204 goto done;
205 }
206
207 #ifndef BDB_MULTIPLE_SUFFIXES
208 if( !be_issuffix( op->o_bd, &ptr ))
209 #endif
210 {
211 buf[0] = DN_SUBTREE_PREFIX;
212 rc = bdb_idl_delete_key( op->o_bd, db, txn, &key, e->e_id );
213 if( rc != 0 ) {
214 Debug( LDAP_DEBUG_ANY,
215 "=> bdb_dn2id_delete 0x%lx: subtree (%s) delete failed: %d\n",
216 e->e_id, ptr.bv_val, rc );
217 goto done;
218 }
219
220 #ifdef BDB_MULTIPLE_SUFFIXES
221 if( !be_issuffix( op->o_bd, &ptr ))
222 #endif
223 {
224 dnParent( &ptr, &pdn );
225
226 key.size = pdn.bv_len + 2;
227 key.ulen = key.size;
228 pdn.bv_val[-1] = DN_ONE_PREFIX;
229 key.data = pdn.bv_val - 1;
230 ptr = pdn;
231
232 rc = bdb_idl_delete_key( op->o_bd, db, txn, &key, e->e_id );
233
234 if( rc != 0 ) {
235 Debug( LDAP_DEBUG_ANY,
236 "=> bdb_dn2id_delete 0x%lx: parent (%s) delete failed: %d\n",
237 e->e_id, ptr.bv_val, rc );
238 goto done;
239 }
240 }
241
242 #ifndef BDB_MULTIPLE_SUFFIXES
243 while( !be_issuffix( op->o_bd, &ptr ))
244 #else
245 for (;;)
246 #endif
247 {
248 ptr.bv_val[-1] = DN_SUBTREE_PREFIX;
249
250 rc = bdb_idl_delete_key( op->o_bd, db, txn, &key, e->e_id );
251 if( rc != 0 ) {
252 Debug( LDAP_DEBUG_ANY,
253 "=> bdb_dn2id_delete 0x%lx: subtree (%s) delete failed: %d\n",
254 e->e_id, ptr.bv_val, rc );
255 goto done;
256 }
257 #ifdef BDB_MULTIPLE_SUFFIXES
258 if( be_issuffix( op->o_bd, &ptr )) break;
259 #endif
260 dnParent( &ptr, &pdn );
261
262 key.size = pdn.bv_len + 2;
263 key.ulen = key.size;
264 key.data = pdn.bv_val - 1;
265 ptr = pdn;
266 }
267 }
268
269 done:
270 op->o_tmpfree( buf, op->o_tmpmemctx );
271 Debug( LDAP_DEBUG_TRACE, "<= bdb_dn2id_delete 0x%lx: %d\n", e->e_id, rc, 0 );
272 return rc;
273 }
274
275 int
276 bdb_dn2id(
277 Operation *op,
278 struct berval *dn,
279 EntryInfo *ei,
280 BDB_LOCKER locker,
281 DB_LOCK *lock )
282 {
283 struct bdb_info *bdb = (struct bdb_info *) op->o_bd->be_private;
284 DB *db = bdb->bi_dn2id->bdi_db;
285 DBC *cursor;
286 int rc;
287 DBT key, data;
288 ID nid;
289
290 Debug( LDAP_DEBUG_TRACE, "=> bdb_dn2id(\"%s\")\n", dn->bv_val, 0, 0 );
291
292 DBTzero( &key );
293 key.size = dn->bv_len + 2;
294 key.data = op->o_tmpalloc( key.size, op->o_tmpmemctx );
295 ((char *)key.data)[0] = DN_BASE_PREFIX;
296 AC_MEMCPY( &((char *)key.data)[1], dn->bv_val, key.size - 1 );
297
298 /* store the ID */
299 DBTzero( &data );
300 data.data = &nid;
301 data.ulen = sizeof(ID);
302 data.flags = DB_DBT_USERMEM;
303
304 rc = db->cursor( db, NULL, &cursor, bdb->bi_db_opflags );
305 if ( rc ) goto func_leave;
306
307 rc = bdb_dn2id_lock( bdb, dn, 0, locker, lock );
308 if ( rc ) goto nolock;
309
310 if ( locker ) {
311 CURSOR_SETLOCKER(cursor, locker);
312 }
313
314 /* fetch it */
315 rc = cursor->c_get( cursor, &key, &data, DB_SET );
316
317 nolock:
318 cursor->c_close( cursor );
319 func_leave:
320
321 if( rc != 0 ) {
322 Debug( LDAP_DEBUG_TRACE, "<= bdb_dn2id: get failed: %s (%d)\n",
323 db_strerror( rc ), rc, 0 );
324 } else {
325 BDB_DISK2ID( &nid, &ei->bei_id );
326 Debug( LDAP_DEBUG_TRACE, "<= bdb_dn2id: got id=0x%lx\n",
327 ei->bei_id, 0, 0 );
328 }
329 op->o_tmpfree( key.data, op->o_tmpmemctx );
330 return rc;
331 }
332
333 int
334 bdb_dn2id_children(
335 Operation *op,
336 DB_TXN *txn,
337 Entry *e )
338 {
339 DBT key, data;
340 struct bdb_info *bdb = (struct bdb_info *) op->o_bd->be_private;
341 DB *db = bdb->bi_dn2id->bdi_db;
342 ID id;
343 int rc;
344
345 Debug( LDAP_DEBUG_TRACE, "=> bdb_dn2id_children(\"%s\")\n",
346 e->e_nname.bv_val, 0, 0 );
347 DBTzero( &key );
348 key.size = e->e_nname.bv_len + 2;
349 key.data = op->o_tmpalloc( key.size, op->o_tmpmemctx );
350 ((char *)key.data)[0] = DN_ONE_PREFIX;
351 AC_MEMCPY( &((char *)key.data)[1], e->e_nname.bv_val, key.size - 1 );
352
353 if ( bdb->bi_idl_cache_size ) {
354 rc = bdb_idl_cache_get( bdb, db, &key, NULL );
355 if ( rc != LDAP_NO_SUCH_OBJECT ) {
356 op->o_tmpfree( key.data, op->o_tmpmemctx );
357 return rc;
358 }
359 }
360 /* we actually could do a empty get... */
361 DBTzero( &data );
362 data.data = &id;
363 data.ulen = sizeof(id);
364 data.flags = DB_DBT_USERMEM;
365 data.doff = 0;
366 data.dlen = sizeof(id);
367
368 rc = db->get( db, txn, &key, &data, bdb->bi_db_opflags );
369 op->o_tmpfree( key.data, op->o_tmpmemctx );
370
371 Debug( LDAP_DEBUG_TRACE, "<= bdb_dn2id_children(\"%s\"): %s (%d)\n",
372 e->e_nname.bv_val,
373 rc == 0 ? "" : ( rc == DB_NOTFOUND ? "no " :
374 db_strerror(rc) ), rc );
375
376 return rc;
377 }
378
379 int
380 bdb_dn2idl(
381 Operation *op,
382 BDB_LOCKER locker,
383 struct berval *ndn,
384 EntryInfo *ei,
385 ID *ids,
386 ID *stack )
387 {
388 int rc;
389 DBT key;
390 struct bdb_info *bdb = (struct bdb_info *) op->o_bd->be_private;
391 DB *db = bdb->bi_dn2id->bdi_db;
392 int prefix = ( op->ors_scope == LDAP_SCOPE_ONELEVEL )
393 ? DN_ONE_PREFIX : DN_SUBTREE_PREFIX;
394
395 Debug( LDAP_DEBUG_TRACE, "=> bdb_dn2idl(\"%s\")\n",
396 ndn->bv_val, 0, 0 );
397
398 #ifndef BDB_MULTIPLE_SUFFIXES
399 if ( prefix == DN_SUBTREE_PREFIX
400 && ( ei->bei_id == 0 || ei->bei_parent->bei_id == 0 )) {
401 BDB_IDL_ALL(bdb, ids);
402 return 0;
403 }
404 #endif
405
406 DBTzero( &key );
407 key.size = ndn->bv_len + 2;
408 key.ulen = key.size;
409 key.flags = DB_DBT_USERMEM;
410 key.data = op->o_tmpalloc( key.size, op->o_tmpmemctx );
411 ((char *)key.data)[0] = prefix;
412 AC_MEMCPY( &((char *)key.data)[1], ndn->bv_val, key.size - 1 );
413
414 BDB_IDL_ZERO( ids );
415 rc = bdb_idl_fetch_key( op->o_bd, db, locker, &key, ids, NULL, 0 );
416
417 if( rc != 0 ) {
418 Debug( LDAP_DEBUG_TRACE,
419 "<= bdb_dn2idl: get failed: %s (%d)\n",
420 db_strerror( rc ), rc, 0 );
421
422 } else {
423 Debug( LDAP_DEBUG_TRACE,
424 "<= bdb_dn2idl: id=%ld first=%ld last=%ld\n",
425 (long) ids[0],
426 (long) BDB_IDL_FIRST( ids ), (long) BDB_IDL_LAST( ids ) );
427 }
428
429 op->o_tmpfree( key.data, op->o_tmpmemctx );
430 return rc;
431 }
432
433 #else /* BDB_HIER */
434 /* Management routines for a hierarchically structured database.
435 *
436 * Instead of a ldbm-style dn2id database, we use a hierarchical one. Each
437 * entry in this database is a struct diskNode, keyed by entryID and with
438 * the data containing the RDN and entryID of the node's children. We use
439 * a B-Tree with sorted duplicates to store all the children of a node under
440 * the same key. Also, the first item under the key contains the entry's own
441 * rdn and the ID of the node's parent, to allow bottom-up tree traversal as
442 * well as top-down. To keep this info first in the list, the high bit of all
443 * subsequent nrdnlen's is always set. This means we can only accomodate
444 * RDNs up to length 32767, but that's fine since full DNs are already
445 * restricted to 8192.
446 *
447 * The diskNode is a variable length structure. This definition is not
448 * directly usable for in-memory manipulation.
449 */
450 typedef struct diskNode {
451 unsigned char nrdnlen[2];
452 char nrdn[1];
453 char rdn[1]; /* variable placement */
454 unsigned char entryID[sizeof(ID)]; /* variable placement */
455 } diskNode;
456
457 /* Sort function for the sorted duplicate data items of a dn2id key.
458 * Sorts based on normalized RDN, in length order.
459 */
460 int
461 hdb_dup_compare(
462 DB *db,
463 const DBT *usrkey,
464 const DBT *curkey
465 )
466 {
467 diskNode *un, *cn;
468 int rc;
469
470 un = (diskNode *)usrkey->data;
471 cn = (diskNode *)curkey->data;
472
473 /* data is not aligned, cannot compare directly */
474 rc = un->nrdnlen[0] - cn->nrdnlen[0];
475 if ( rc ) return rc;
476 rc = un->nrdnlen[1] - cn->nrdnlen[1];
477 if ( rc ) return rc;
478
479 return strcmp( un->nrdn, cn->nrdn );
480 }
481
482 /* This function constructs a full DN for a given entry.
483 */
484 int hdb_fix_dn(
485 Entry *e,
486 int checkit )
487 {
488 EntryInfo *ei;
489 int rlen = 0, nrlen = 0;
490 char *ptr, *nptr;
491 int max = 0;
492
493 if ( !e->e_id )
494 return 0;
495
496 /* count length of all DN components */
497 for ( ei = BEI(e); ei && ei->bei_id; ei=ei->bei_parent ) {
498 rlen += ei->bei_rdn.bv_len + 1;
499 nrlen += ei->bei_nrdn.bv_len + 1;
500 if (ei->bei_modrdns > max) max = ei->bei_modrdns;
501 }
502
503 /* See if the entry DN was invalidated by a subtree rename */
504 if ( checkit ) {
505 if ( BEI(e)->bei_modrdns >= max ) {
506 return 0;
507 }
508 /* We found a mismatch, tell the caller to lock it */
509 if ( checkit == 1 ) {
510 return 1;
511 }
512 /* checkit == 2. do the fix. */
513 free( e->e_name.bv_val );
514 free( e->e_nname.bv_val );
515 }
516
517 e->e_name.bv_len = rlen - 1;
518 e->e_nname.bv_len = nrlen - 1;
519 e->e_name.bv_val = ch_malloc(rlen);
520 e->e_nname.bv_val = ch_malloc(nrlen);
521 ptr = e->e_name.bv_val;
522 nptr = e->e_nname.bv_val;
523 for ( ei = BEI(e); ei && ei->bei_id; ei=ei->bei_parent ) {
524 ptr = lutil_strcopy(ptr, ei->bei_rdn.bv_val);
525 nptr = lutil_strcopy(nptr, ei->bei_nrdn.bv_val);
526 if ( ei->bei_parent ) {
527 *ptr++ = ',';
528 *nptr++ = ',';
529 }
530 }
531 BEI(e)->bei_modrdns = max;
532 ptr[-1] = '\0';
533 nptr[-1] = '\0';
534
535 return 0;
536 }
537
538 /* We add two elements to the DN2ID database - a data item under the parent's
539 * entryID containing the child's RDN and entryID, and an item under the
540 * child's entryID containing the parent's entryID.
541 */
542 int
543 hdb_dn2id_add(
544 Operation *op,
545 DB_TXN *txn,
546 EntryInfo *eip,
547 Entry *e )
548 {
549 struct bdb_info *bdb = (struct bdb_info *) op->o_bd->be_private;
550 DB *db = bdb->bi_dn2id->bdi_db;
551 DBT key, data;
552 ID nid;
553 int rc, rlen, nrlen;
554 diskNode *d;
555 char *ptr;
556
557 Debug( LDAP_DEBUG_TRACE, "=> hdb_dn2id_add 0x%lx: \"%s\"\n",
558 e->e_id, e->e_ndn, 0 );
559
560 nrlen = dn_rdnlen( op->o_bd, &e->e_nname );
561 if (nrlen) {
562 rlen = dn_rdnlen( op->o_bd, &e->e_name );
563 } else {
564 nrlen = e->e_nname.bv_len;
565 rlen = e->e_name.bv_len;
566 }
567
568 d = op->o_tmpalloc(sizeof(diskNode) + rlen + nrlen, op->o_tmpmemctx);
569 d->nrdnlen[1] = nrlen & 0xff;
570 d->nrdnlen[0] = (nrlen >> 8) | 0x80;
571 ptr = lutil_strncopy( d->nrdn, e->e_nname.bv_val, nrlen );
572 *ptr++ = '\0';
573 ptr = lutil_strncopy( ptr, e->e_name.bv_val, rlen );
574 *ptr++ = '\0';
575 BDB_ID2DISK( e->e_id, ptr );
576
577 DBTzero(&key);
578 DBTzero(&data);
579 key.size = sizeof(ID);
580 key.flags = DB_DBT_USERMEM;
581 BDB_ID2DISK( eip->bei_id, &nid );
582
583 key.data = &nid;
584
585 /* Need to make dummy root node once. Subsequent attempts
586 * will fail harmlessly.
587 */
588 if ( eip->bei_id == 0 ) {
589 diskNode dummy = {{0, 0}, "", "", ""};
590 data.data = &dummy;
591 data.size = sizeof(diskNode);
592 data.flags = DB_DBT_USERMEM;
593
594 db->put( db, txn, &key, &data, DB_NODUPDATA );
595 }
596
597 data.data = d;
598 data.size = sizeof(diskNode) + rlen + nrlen;
599 data.flags = DB_DBT_USERMEM;
600
601 rc = db->put( db, txn, &key, &data, DB_NODUPDATA );
602
603 if (rc == 0) {
604 BDB_ID2DISK( e->e_id, &nid );
605 BDB_ID2DISK( eip->bei_id, ptr );
606 d->nrdnlen[0] ^= 0x80;
607
608 rc = db->put( db, txn, &key, &data, DB_NODUPDATA );
609 }
610
611 /* Update all parents' IDL cache entries */
612 if ( rc == 0 && bdb->bi_idl_cache_size ) {
613 ID tmp[2];
614 char *ptr = ((char *)&tmp[1])-1;
615 key.data = ptr;
616 key.size = sizeof(ID)+1;
617 tmp[1] = eip->bei_id;
618 *ptr = DN_ONE_PREFIX;
619 bdb_idl_cache_add_id( bdb, db, &key, e->e_id );
620 *ptr = DN_SUBTREE_PREFIX;
621 for (; eip && eip->bei_parent->bei_id; eip = eip->bei_parent) {
622 tmp[1] = eip->bei_id;
623 bdb_idl_cache_add_id( bdb, db, &key, e->e_id );
624 }
625 }
626
627 func_leave:
628 op->o_tmpfree( d, op->o_tmpmemctx );
629 Debug( LDAP_DEBUG_TRACE, "<= hdb_dn2id_add 0x%lx: %d\n", e->e_id, rc, 0 );
630
631 return rc;
632 }
633
634 int
635 hdb_dn2id_delete(
636 Operation *op,
637 DB_TXN *txn,
638 EntryInfo *eip,
639 Entry *e )
640 {
641 struct bdb_info *bdb = (struct bdb_info *) op->o_bd->be_private;
642 DB *db = bdb->bi_dn2id->bdi_db;
643 DBT key, data;
644 DBC *cursor;
645 diskNode *d;
646 int rc;
647 ID nid;
648 unsigned char dlen[2];
649 DB_LOCK lock;
650
651 Debug( LDAP_DEBUG_TRACE, "=> hdb_dn2id_delete 0x%lx: \"%s\"\n",
652 e->e_id, e->e_ndn, 0 );
653
654 DBTzero(&key);
655 key.size = sizeof(ID);
656 key.ulen = key.size;
657 key.flags = DB_DBT_USERMEM;
658 BDB_ID2DISK( eip->bei_id, &nid );
659
660 DBTzero(&data);
661 data.size = sizeof(diskNode) + BEI(e)->bei_nrdn.bv_len - sizeof(ID) - 1;
662 data.ulen = data.size;
663 data.dlen = data.size;
664 data.flags = DB_DBT_USERMEM | DB_DBT_PARTIAL;
665
666 key.data = &nid;
667
668 d = op->o_tmpalloc( data.size, op->o_tmpmemctx );
669 d->nrdnlen[1] = BEI(e)->bei_nrdn.bv_len & 0xff;
670 d->nrdnlen[0] = (BEI(e)->bei_nrdn.bv_len >> 8) | 0x80;
671 dlen[0] = d->nrdnlen[0];
672 dlen[1] = d->nrdnlen[1];
673 strcpy( d->nrdn, BEI(e)->bei_nrdn.bv_val );
674 data.data = d;
675
676 rc = db->cursor( db, txn, &cursor, bdb->bi_db_opflags );
677 if ( rc ) goto func_leave;
678
679 /* We hold this lock until the TXN completes */
680 rc = bdb_dn2id_lock( bdb, &e->e_nname, 1, TXN_ID( txn ), &lock );
681 if ( rc ) goto nolock;
682
683 /* Delete our ID from the parent's list */
684 rc = cursor->c_get( cursor, &key, &data, DB_GET_BOTH_RANGE );
685 if ( rc == 0 ) {
686 if ( dlen[1] == d->nrdnlen[1] && dlen[0] == d->nrdnlen[0] &&
687 !strcmp( d->nrdn, BEI(e)->bei_nrdn.bv_val ))
688 rc = cursor->c_del( cursor, 0 );
689 else
690 rc = DB_NOTFOUND;
691 }
692
693 /* Delete our ID from the tree. With sorted duplicates, this
694 * will leave any child nodes still hanging around. This is OK
695 * for modrdn, which will add our info back in later.
696 */
697 if ( rc == 0 ) {
698 BDB_ID2DISK( e->e_id, &nid );
699 rc = cursor->c_get( cursor, &key, &data, DB_SET );
700 if ( rc == 0 )
701 rc = cursor->c_del( cursor, 0 );
702 }
703
704 nolock:
705 cursor->c_close( cursor );
706 func_leave:
707 op->o_tmpfree( d, op->o_tmpmemctx );
708
709 /* Delete IDL cache entries */
710 if ( rc == 0 && bdb->bi_idl_cache_size ) {
711 ID tmp[2];
712 char *ptr = ((char *)&tmp[1])-1;
713 key.data = ptr;
714 key.size = sizeof(ID)+1;
715 tmp[1] = eip->bei_id;
716 *ptr = DN_ONE_PREFIX;
717 bdb_idl_cache_del_id( bdb, db, &key, e->e_id );
718 *ptr = DN_SUBTREE_PREFIX;
719 for (; eip && eip->bei_parent->bei_id; eip = eip->bei_parent) {
720 tmp[1] = eip->bei_id;
721 bdb_idl_cache_del_id( bdb, db, &key, e->e_id );
722 }
723 }
724 Debug( LDAP_DEBUG_TRACE, "<= hdb_dn2id_delete 0x%lx: %d\n", e->e_id, rc, 0 );
725 return rc;
726 }
727
728
729 int
730 hdb_dn2id(
731 Operation *op,
732 struct berval *in,
733 EntryInfo *ei,
734 BDB_LOCKER locker,
735 DB_LOCK *lock )
736 {
737 struct bdb_info *bdb = (struct bdb_info *) op->o_bd->be_private;
738 DB *db = bdb->bi_dn2id->bdi_db;
739 DBT key, data;
740 DBC *cursor;
741 int rc = 0, nrlen;
742 diskNode *d;
743 char *ptr;
744 unsigned char dlen[2];
745 ID idp, parentID;
746
747 Debug( LDAP_DEBUG_TRACE, "=> hdb_dn2id(\"%s\")\n", in->bv_val, 0, 0 );
748
749 nrlen = dn_rdnlen( op->o_bd, in );
750 if (!nrlen) nrlen = in->bv_len;
751
752 DBTzero(&key);
753 key.size = sizeof(ID);
754 key.data = &idp;
755 key.ulen = sizeof(ID);
756 key.flags = DB_DBT_USERMEM;
757 parentID = ( ei->bei_parent != NULL ) ? ei->bei_parent->bei_id : 0;
758 BDB_ID2DISK( parentID, &idp );
759
760 DBTzero(&data);
761 data.size = sizeof(diskNode) + nrlen - sizeof(ID) - 1;
762 data.ulen = data.size * 3;
763 data.dlen = data.ulen;
764 data.flags = DB_DBT_USERMEM | DB_DBT_PARTIAL;
765
766 rc = db->cursor( db, NULL, &cursor, bdb->bi_db_opflags );
767 if ( rc ) return rc;
768 if ( locker ) {
769 CURSOR_SETLOCKER( cursor, locker );
770 }
771
772 d = op->o_tmpalloc( data.size * 3, op->o_tmpmemctx );
773 d->nrdnlen[1] = nrlen & 0xff;
774 d->nrdnlen[0] = (nrlen >> 8) | 0x80;
775 dlen[0] = d->nrdnlen[0];
776 dlen[1] = d->nrdnlen[1];
777 ptr = lutil_strncopy( d->nrdn, in->bv_val, nrlen );
778 *ptr = '\0';
779 data.data = d;
780
781 rc = bdb_dn2id_lock( bdb, in, 0, locker, lock );
782 if ( rc ) goto func_leave;
783
784 rc = cursor->c_get( cursor, &key, &data, DB_GET_BOTH_RANGE );
785 if ( rc == 0 && (dlen[1] != d->nrdnlen[1] || dlen[0] != d->nrdnlen[0] ||
786 strncmp( d->nrdn, in->bv_val, nrlen ))) {
787 rc = DB_NOTFOUND;
788 }
789 if ( rc == 0 ) {
790 ptr = (char *) data.data + data.size - sizeof(ID);
791 BDB_DISK2ID( ptr, &ei->bei_id );
792 ei->bei_rdn.bv_len = data.size - sizeof(diskNode) - nrlen;
793 ptr = d->nrdn + nrlen + 1;
794 ber_str2bv( ptr, ei->bei_rdn.bv_len, 1, &ei->bei_rdn );
795 if ( ei->bei_parent != NULL && !ei->bei_parent->bei_dkids ) {
796 db_recno_t dkids;
797 /* How many children does the parent have? */
798 /* FIXME: do we need to lock the parent
799 * entryinfo? Seems safe...
800 */
801 cursor->c_count( cursor, &dkids, 0 );
802 ei->bei_parent->bei_dkids = dkids;
803 }
804 }
805
806 func_leave:
807 cursor->c_close( cursor );
808 op->o_tmpfree( d, op->o_tmpmemctx );
809 if( rc != 0 ) {
810 Debug( LDAP_DEBUG_TRACE, "<= hdb_dn2id: get failed: %s (%d)\n",
811 db_strerror( rc ), rc, 0 );
812 } else {
813 Debug( LDAP_DEBUG_TRACE, "<= hdb_dn2id: got id=0x%lx\n",
814 ei->bei_id, 0, 0 );
815 }
816
817 return rc;
818 }
819
820 int
821 hdb_dn2id_parent(
822 Operation *op,
823 BDB_LOCKER locker,
824 EntryInfo *ei,
825 ID *idp )
826 {
827 struct bdb_info *bdb = (struct bdb_info *) op->o_bd->be_private;
828 DB *db = bdb->bi_dn2id->bdi_db;
829 DBT key, data;
830 DBC *cursor;
831 int rc = 0;
832 diskNode *d;
833 char *ptr;
834 ID nid;
835
836 DBTzero(&key);
837 key.size = sizeof(ID);
838 key.data = &nid;
839 key.ulen = sizeof(ID);
840 key.flags = DB_DBT_USERMEM;
841 BDB_ID2DISK( ei->bei_id, &nid );
842
843 DBTzero(&data);
844 data.flags = DB_DBT_USERMEM;
845
846 rc = db->cursor( db, NULL, &cursor, bdb->bi_db_opflags );
847 if ( rc ) return rc;
848 if ( locker ) {
849 CURSOR_SETLOCKER(cursor, locker);
850 }
851
852 data.ulen = sizeof(diskNode) + (SLAP_LDAPDN_MAXLEN * 2);
853 d = op->o_tmpalloc( data.ulen, op->o_tmpmemctx );
854 data.data = d;
855
856 rc = cursor->c_get( cursor, &key, &data, DB_SET );
857 if ( rc == 0 ) {
858 if (d->nrdnlen[0] & 0x80) {
859 rc = LDAP_OTHER;
860 } else {
861 db_recno_t dkids;
862 ptr = (char *) data.data + data.size - sizeof(ID);
863 BDB_DISK2ID( ptr, idp );
864 ei->bei_nrdn.bv_len = (d->nrdnlen[0] << 8) | d->nrdnlen[1];
865 ber_str2bv( d->nrdn, ei->bei_nrdn.bv_len, 1, &ei->bei_nrdn );
866 ei->bei_rdn.bv_len = data.size - sizeof(diskNode) -
867 ei->bei_nrdn.bv_len;
868 ptr = d->nrdn + ei->bei_nrdn.bv_len + 1;
869 ber_str2bv( ptr, ei->bei_rdn.bv_len, 1, &ei->bei_rdn );
870 /* How many children does this node have? */
871 cursor->c_count( cursor, &dkids, 0 );
872 ei->bei_dkids = dkids;
873 }
874 }
875 cursor->c_close( cursor );
876 op->o_tmpfree( d, op->o_tmpmemctx );
877 return rc;
878 }
879
880 int
881 hdb_dn2id_children(
882 Operation *op,
883 DB_TXN *txn,
884 Entry *e )
885 {
886 struct bdb_info *bdb = (struct bdb_info *) op->o_bd->be_private;
887 DB *db = bdb->bi_dn2id->bdi_db;
888 DBT key, data;
889 DBC *cursor;
890 int rc;
891 ID id;
892 diskNode d;
893
894 DBTzero(&key);
895 key.size = sizeof(ID);
896 key.data = &e->e_id;
897 key.flags = DB_DBT_USERMEM;
898 BDB_ID2DISK( e->e_id, &id );
899
900 /* IDL cache is in host byte order */
901 if ( bdb->bi_idl_cache_size ) {
902 rc = bdb_idl_cache_get( bdb, db, &key, NULL );
903 if ( rc != LDAP_NO_SUCH_OBJECT ) {
904 return rc;
905 }
906 }
907
908 key.data = &id;
909 DBTzero(&data);
910 data.data = &d;
911 data.ulen = sizeof(d);
912 data.flags = DB_DBT_USERMEM | DB_DBT_PARTIAL;
913 data.dlen = sizeof(d);
914
915 rc = db->cursor( db, txn, &cursor, bdb->bi_db_opflags );
916 if ( rc ) return rc;
917
918 rc = cursor->c_get( cursor, &key, &data, DB_SET );
919 if ( rc == 0 ) {
920 db_recno_t dkids;
921 rc = cursor->c_count( cursor, &dkids, 0 );
922 if ( rc == 0 ) {
923 BEI(e)->bei_dkids = dkids;
924 if ( dkids < 2 ) rc = DB_NOTFOUND;
925 }
926 }
927 cursor->c_close( cursor );
928 return rc;
929 }
930
931 /* bdb_dn2idl:
932 * We can't just use bdb_idl_fetch_key because
933 * 1 - our data items are longer than just an entry ID
934 * 2 - our data items are sorted alphabetically by nrdn, not by ID.
935 *
936 * We descend the tree recursively, so we define this cookie
937 * to hold our necessary state information. The bdb_dn2idl_internal
938 * function uses this cookie when calling itself.
939 */
940
941 struct dn2id_cookie {
942 struct bdb_info *bdb;
943 Operation *op;
944 BDB_LOCKER locker;
945 EntryInfo *ei;
946 ID *ids;
947 ID *tmp;
948 ID *buf;
949 DB *db;
950 DBC *dbc;
951 DBT key;
952 DBT data;
953 ID dbuf;
954 ID id;
955 ID nid;
956 int rc;
957 int depth;
958 char need_sort;
959 char prefix;
960 };
961
962 static int
963 apply_func(
964 void *data,
965 void *arg )
966 {
967 EntryInfo *ei = data;
968 ID *idl = arg;
969
970 bdb_idl_append_one( idl, ei->bei_id );
971 return 0;
972 }
973
974 static int
975 hdb_dn2idl_internal(
976 struct dn2id_cookie *cx
977 )
978 {
979 BDB_IDL_ZERO( cx->tmp );
980
981 if ( cx->bdb->bi_idl_cache_size ) {
982 char *ptr = ((char *)&cx->id)-1;
983
984 cx->key.data = ptr;
985 cx->key.size = sizeof(ID)+1;
986 if ( cx->prefix == DN_SUBTREE_PREFIX ) {
987 ID *ids = cx->depth ? cx->tmp : cx->ids;
988 *ptr = cx->prefix;
989 cx->rc = bdb_idl_cache_get(cx->bdb, cx->db, &cx->key, ids);
990 if ( cx->rc == LDAP_SUCCESS ) {
991 if ( cx->depth ) {
992 bdb_idl_append( cx->ids, cx->tmp );
993 cx->need_sort = 1;
994 }
995 return cx->rc;
996 }
997 }
998 *ptr = DN_ONE_PREFIX;
999 cx->rc = bdb_idl_cache_get(cx->bdb, cx->db, &cx->key, cx->tmp);
1000 if ( cx->rc == LDAP_SUCCESS ) {
1001 goto gotit;
1002 }
1003 if ( cx->rc == DB_NOTFOUND ) {
1004 return cx->rc;
1005 }
1006 }
1007
1008 bdb_cache_entryinfo_lock( cx->ei );
1009
1010 /* If number of kids in the cache differs from on-disk, load
1011 * up all the kids from the database
1012 */
1013 if ( cx->ei->bei_ckids+1 != cx->ei->bei_dkids ) {
1014 EntryInfo ei;
1015 db_recno_t dkids = cx->ei->bei_dkids;
1016 ei.bei_parent = cx->ei;
1017
1018 /* Only one thread should load the cache */
1019 while ( cx->ei->bei_state & CACHE_ENTRY_ONELEVEL ) {
1020 bdb_cache_entryinfo_unlock( cx->ei );
1021 ldap_pvt_thread_yield();
1022 bdb_cache_entryinfo_lock( cx->ei );
1023 if ( cx->ei->bei_ckids+1 == cx->ei->bei_dkids ) {
1024 goto synced;
1025 }
1026 }
1027
1028 cx->ei->bei_state |= CACHE_ENTRY_ONELEVEL;
1029
1030 bdb_cache_entryinfo_unlock( cx->ei );
1031
1032 cx->rc = cx->db->cursor( cx->db, NULL, &cx->dbc,
1033 cx->bdb->bi_db_opflags );
1034 if ( cx->rc )
1035 goto done_one;
1036
1037 cx->data.data = &cx->dbuf;
1038 cx->data.ulen = sizeof(ID);
1039 cx->data.dlen = sizeof(ID);
1040 cx->data.flags = DB_DBT_USERMEM | DB_DBT_PARTIAL;
1041
1042 /* The first item holds the parent ID. Ignore it. */
1043 cx->key.data = &cx->nid;
1044 cx->key.size = sizeof(ID);
1045 cx->rc = cx->dbc->c_get( cx->dbc, &cx->key, &cx->data, DB_SET );
1046 if ( cx->rc ) {
1047 cx->dbc->c_close( cx->dbc );
1048 goto done_one;
1049 }
1050
1051 /* If the on-disk count is zero we've never checked it.
1052 * Count it now.
1053 */
1054 if ( !dkids ) {
1055 cx->dbc->c_count( cx->dbc, &dkids, 0 );
1056 cx->ei->bei_dkids = dkids;
1057 }
1058
1059 cx->data.data = cx->buf;
1060 cx->data.ulen = BDB_IDL_UM_SIZE * sizeof(ID);
1061 cx->data.flags = DB_DBT_USERMEM;
1062
1063 if ( dkids > 1 ) {
1064 /* Fetch the rest of the IDs in a loop... */
1065 while ( (cx->rc = cx->dbc->c_get( cx->dbc, &cx->key, &cx->data,
1066 DB_MULTIPLE | DB_NEXT_DUP )) == 0 ) {
1067 u_int8_t *j;
1068 size_t len;
1069 void *ptr;
1070 DB_MULTIPLE_INIT( ptr, &cx->data );
1071 while (ptr) {
1072 DB_MULTIPLE_NEXT( ptr, &cx->data, j, len );
1073 if (j) {
1074 EntryInfo *ei2;
1075 diskNode *d = (diskNode *)j;
1076 short nrlen;
1077
1078 BDB_DISK2ID( j + len - sizeof(ID), &ei.bei_id );
1079 nrlen = ((d->nrdnlen[0] ^ 0x80) << 8) | d->nrdnlen[1];
1080 ei.bei_nrdn.bv_len = nrlen;
1081 /* nrdn/rdn are set in-place.
1082 * hdb_cache_load will copy them as needed
1083 */
1084 ei.bei_nrdn.bv_val = d->nrdn;
1085 ei.bei_rdn.bv_len = len - sizeof(diskNode)
1086 - ei.bei_nrdn.bv_len;
1087 ei.bei_rdn.bv_val = d->nrdn + ei.bei_nrdn.bv_len + 1;
1088 bdb_idl_append_one( cx->tmp, ei.bei_id );
1089 hdb_cache_load( cx->bdb, &ei, &ei2 );
1090 }
1091 }
1092 }
1093 }
1094
1095 cx->rc = cx->dbc->c_close( cx->dbc );
1096 done_one:
1097 bdb_cache_entryinfo_lock( cx->ei );
1098 cx->ei->bei_state ^= CACHE_ENTRY_ONELEVEL;
1099 bdb_cache_entryinfo_unlock( cx->ei );
1100 if ( cx->rc )
1101 return cx->rc;
1102
1103 } else {
1104 /* The in-memory cache is in sync with the on-disk data.
1105 * do we have any kids?
1106 */
1107 synced:
1108 cx->rc = 0;
1109 if ( cx->ei->bei_ckids > 0 ) {
1110 /* Walk the kids tree; order is irrelevant since bdb_idl_sort
1111 * will sort it later.
1112 */
1113 avl_apply( cx->ei->bei_kids, apply_func,
1114 cx->tmp, -1, AVL_POSTORDER );
1115 }
1116 bdb_cache_entryinfo_unlock( cx->ei );
1117 }
1118
1119 if ( !BDB_IDL_IS_RANGE( cx->tmp ) && cx->tmp[0] > 3 )
1120 bdb_idl_sort( cx->tmp, cx->buf );
1121 if ( cx->bdb->bi_idl_cache_max_size && !BDB_IDL_IS_ZERO( cx->tmp )) {
1122 char *ptr = ((char *)&cx->id)-1;
1123 cx->key.data = ptr;
1124 cx->key.size = sizeof(ID)+1;
1125 *ptr = DN_ONE_PREFIX;
1126 bdb_idl_cache_put( cx->bdb, cx->db, &cx->key, cx->tmp, cx->rc );
1127 }
1128
1129 gotit:
1130 if ( !BDB_IDL_IS_ZERO( cx->tmp )) {
1131 if ( cx->prefix == DN_SUBTREE_PREFIX ) {
1132 bdb_idl_append( cx->ids, cx->tmp );
1133 cx->need_sort = 1;
1134 if ( !(cx->ei->bei_state & CACHE_ENTRY_NO_GRANDKIDS)) {
1135 ID *save, idcurs;
1136 EntryInfo *ei = cx->ei;
1137 int nokids = 1;
1138 save = cx->op->o_tmpalloc( BDB_IDL_SIZEOF( cx->tmp ),
1139 cx->op->o_tmpmemctx );
1140 BDB_IDL_CPY( save, cx->tmp );
1141
1142 idcurs = 0;
1143 cx->depth++;
1144 for ( cx->id = bdb_idl_first( save, &idcurs );
1145 cx->id != NOID;
1146 cx->id = bdb_idl_next( save, &idcurs )) {
1147 cx->ei = bdb_cache_find_info( cx->bdb, cx->id );
1148 if ( !cx->ei ||
1149 ( cx->ei->bei_state & CACHE_ENTRY_NO_KIDS ))
1150 continue;
1151
1152 BDB_ID2DISK( cx->id, &cx->nid );
1153 hdb_dn2idl_internal( cx );
1154 if ( !BDB_IDL_IS_ZERO( cx->tmp ))
1155 nokids = 0;
1156 }
1157 cx->depth--;
1158 cx->op->o_tmpfree( save, cx->op->o_tmpmemctx );
1159 if ( nokids ) {
1160 bdb_cache_entryinfo_lock( ei );
1161 ei->bei_state |= CACHE_ENTRY_NO_GRANDKIDS;
1162 bdb_cache_entryinfo_unlock( ei );
1163 }
1164 }
1165 /* Make sure caller knows it had kids! */
1166 cx->tmp[0]=1;
1167
1168 cx->rc = 0;
1169 } else {
1170 BDB_IDL_CPY( cx->ids, cx->tmp );
1171 }
1172 }
1173 return cx->rc;
1174 }
1175
1176 int
1177 hdb_dn2idl(
1178 Operation *op,
1179 BDB_LOCKER locker,
1180 struct berval *ndn,
1181 EntryInfo *ei,
1182 ID *ids,
1183 ID *stack )
1184 {
1185 struct bdb_info *bdb = (struct bdb_info *)op->o_bd->be_private;
1186 struct dn2id_cookie cx;
1187
1188 Debug( LDAP_DEBUG_TRACE, "=> hdb_dn2idl(\"%s\")\n",
1189 ndn->bv_val, 0, 0 );
1190
1191 #ifndef BDB_MULTIPLE_SUFFIXES
1192 if ( op->ors_scope != LDAP_SCOPE_ONELEVEL &&
1193 ( ei->bei_id == 0 ||
1194 ei->bei_parent->bei_id == 0 ))
1195 {
1196 BDB_IDL_ALL( bdb, ids );
1197 return 0;
1198 }
1199 #endif
1200
1201 cx.id = ei->bei_id;
1202 BDB_ID2DISK( cx.id, &cx.nid );
1203 cx.ei = ei;
1204 cx.bdb = bdb;
1205 cx.db = cx.bdb->bi_dn2id->bdi_db;
1206 cx.prefix = (op->ors_scope == LDAP_SCOPE_ONELEVEL) ?
1207 DN_ONE_PREFIX : DN_SUBTREE_PREFIX;
1208 cx.ids = ids;
1209 cx.tmp = stack;
1210 cx.buf = stack + BDB_IDL_UM_SIZE;
1211 cx.op = op;
1212 cx.locker = locker;
1213 cx.need_sort = 0;
1214 cx.depth = 0;
1215
1216 if ( cx.prefix == DN_SUBTREE_PREFIX ) {
1217 ids[0] = 1;
1218 ids[1] = cx.id;
1219 } else {
1220 BDB_IDL_ZERO( ids );
1221 }
1222 if ( cx.ei->bei_state & CACHE_ENTRY_NO_KIDS )
1223 return LDAP_SUCCESS;
1224
1225 DBTzero(&cx.key);
1226 cx.key.ulen = sizeof(ID);
1227 cx.key.size = sizeof(ID);
1228 cx.key.flags = DB_DBT_USERMEM;
1229
1230 DBTzero(&cx.data);
1231
1232 hdb_dn2idl_internal(&cx);
1233 if ( cx.need_sort ) {
1234 char *ptr = ((char *)&cx.id)-1;
1235 if ( !BDB_IDL_IS_RANGE( cx.ids ) && cx.ids[0] > 3 )
1236 bdb_idl_sort( cx.ids, cx.tmp );
1237 cx.key.data = ptr;
1238 cx.key.size = sizeof(ID)+1;
1239 *ptr = cx.prefix;
1240 cx.id = ei->bei_id;
1241 if ( cx.bdb->bi_idl_cache_max_size )
1242 bdb_idl_cache_put( cx.bdb, cx.db, &cx.key, cx.ids, cx.rc );
1243 }
1244
1245 if ( cx.rc == DB_NOTFOUND )
1246 cx.rc = LDAP_SUCCESS;
1247
1248 return cx.rc;
1249 }
1250 #endif /* BDB_HIER */
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