1 /* delete.c - bdb backend delete routine */
3 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
5 * Copyright 2000-2004 The OpenLDAP Foundation.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted only as authorized by the OpenLDAP
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>.
20 #include <ac/string.h>
26 bdb_delete( Operation *op, SlapReply *rs )
28 struct bdb_info *bdb = (struct bdb_info *) op->o_bd->be_private;
29 Entry *matched = NULL;
30 struct berval pdn = {0, NULL};
33 EntryInfo *ei = NULL, *eip = NULL;
34 int manageDSAit = get_manageDSAit( op );
35 AttributeDescription *children = slap_schema.si_ad_children;
36 AttributeDescription *entry = slap_schema.si_ad_entry;
37 DB_TXN *ltid = NULL, *lt2;
38 struct bdb_op_info opinfo;
51 LDAPControl **preread_ctrl = NULL;
52 LDAPControl *ctrls[SLAP_MAX_RESPONSE_CONTROLS];
55 int parent_is_glue = 0;
56 int parent_is_leaf = 0;
61 LDAP_LOG ( OPERATION, ARGS, "==> bdb_delete: %s\n",
62 op->o_req_dn.bv_val, 0, 0 );
64 Debug( LDAP_DEBUG_ARGS, "==> bdb_delete: %s\n",
65 op->o_req_dn.bv_val, 0, 0 );
69 retry: /* transaction retry */
71 bdb_unlocked_cache_return_entry_w(&bdb->bi_cache, e);
75 bdb_unlocked_cache_return_entry_r(&bdb->bi_cache, p);
79 LDAP_LOG ( OPERATION, DETAIL1,
80 "==> bdb_delete: retrying...\n", 0, 0, 0 );
82 Debug( LDAP_DEBUG_TRACE, "==> bdb_delete: retrying...\n",
85 rs->sr_err = TXN_ABORT( ltid );
88 op->o_do_not_cache = opinfo.boi_acl_cache;
89 if( rs->sr_err != 0 ) {
90 rs->sr_err = LDAP_OTHER;
91 rs->sr_text = "internal error";
96 ldap_pvt_thread_yield();
97 bdb_trans_backoff( ++num_retries );
100 /* begin transaction */
101 rs->sr_err = TXN_BEGIN( bdb->bi_dbenv, NULL, <id,
102 bdb->bi_db_opflags );
104 if( rs->sr_err != 0 ) {
106 LDAP_LOG ( OPERATION, ERR,
107 "==> bdb_delete: txn_begin failed: %s (%d)\n",
108 db_strerror(rs->sr_err), rs->sr_err, 0 );
110 Debug( LDAP_DEBUG_TRACE,
111 "bdb_delete: txn_begin failed: %s (%d)\n",
112 db_strerror(rs->sr_err), rs->sr_err, 0 );
114 rs->sr_err = LDAP_OTHER;
115 rs->sr_text = "internal error";
119 locker = TXN_ID ( ltid );
121 opinfo.boi_bdb = op->o_bd;
122 opinfo.boi_txn = ltid;
123 opinfo.boi_locker = locker;
125 opinfo.boi_acl_cache = op->o_do_not_cache;
126 op->o_private = &opinfo;
128 if ( !be_issuffix( op->o_bd, &op->o_req_ndn ) ) {
129 dnParent( &op->o_req_ndn, &pdn );
133 rs->sr_err = bdb_dn2entry( op, ltid, &op->o_req_ndn, &ei, 1,
136 switch( rs->sr_err ) {
140 case DB_LOCK_DEADLOCK:
141 case DB_LOCK_NOTGRANTED:
144 rs->sr_text = "ldap server busy";
147 rs->sr_err = LDAP_OTHER;
148 rs->sr_text = "internal error";
152 if ( rs->sr_err == 0 ) {
154 eip = ei->bei_parent;
159 /* FIXME : dn2entry() should return non-glue entry */
160 if ( e == NULL || ( !manageDSAit && is_entry_glue( e ))) {
162 LDAP_LOG ( OPERATION, ARGS,
163 "<=- bdb_delete: no such object %s\n", op->o_req_dn.bv_val, 0, 0);
165 Debug( LDAP_DEBUG_ARGS,
166 "<=- bdb_delete: no such object %s\n",
167 op->o_req_dn.bv_val, 0, 0);
170 if ( matched != NULL ) {
171 rs->sr_matched = ch_strdup( matched->e_dn );
172 rs->sr_ref = is_entry_referral( matched )
173 ? get_entry_referrals( op, matched )
175 bdb_unlocked_cache_return_entry_r(&bdb->bi_cache, matched);
179 BerVarray deref = NULL;
180 if ( !LDAP_STAILQ_EMPTY( &op->o_bd->be_syncinfo )) {
182 LDAP_STAILQ_FOREACH( si, &op->o_bd->be_syncinfo, si_next ) {
184 ber_dupbv( &tmpbv, &si->si_provideruri_bv[0] );
185 ber_bvarray_add( &deref, &tmpbv );
188 deref = default_referral;
190 rs->sr_ref = referral_rewrite( deref, NULL, &op->o_req_dn,
191 LDAP_SCOPE_DEFAULT );
194 rs->sr_err = LDAP_REFERRAL;
195 send_ldap_result( op, rs );
197 if ( rs->sr_ref != default_referral ) {
198 ber_bvarray_free( rs->sr_ref );
200 free( (char *)rs->sr_matched );
202 rs->sr_matched = NULL;
208 rc = bdb_cache_find_id( op, ltid, eip->bei_id, &eip, 0, locker, &plock );
210 case DB_LOCK_DEADLOCK:
211 case DB_LOCK_NOTGRANTED:
217 rs->sr_err = LDAP_OTHER;
218 rs->sr_text = "internal error";
221 if ( eip ) p = eip->bei_e;
223 if ( pdn.bv_len != 0 ) {
224 if( p == NULL || !bvmatch( &pdn, &p->e_nname )) {
226 LDAP_LOG ( OPERATION, DETAIL1,
227 "<=- bdb_delete: parent does not exist\n", 0, 0, 0 );
229 Debug( LDAP_DEBUG_TRACE,
230 "<=- bdb_delete: parent does not exist\n",
233 rs->sr_err = LDAP_OTHER;
234 rs->sr_text = "could not locate parent of entry";
238 /* check parent for "children" acl */
239 rs->sr_err = access_allowed( op, p,
240 children, NULL, ACL_WRITE, NULL );
243 switch( opinfo.boi_err ) {
244 case DB_LOCK_DEADLOCK:
245 case DB_LOCK_NOTGRANTED:
250 LDAP_LOG ( OPERATION, DETAIL1,
251 "<=- bdb_delete: no write access to parent\n", 0, 0, 0 );
253 Debug( LDAP_DEBUG_TRACE,
254 "<=- bdb_delete: no write access to parent\n",
257 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
258 rs->sr_text = "no write access to parent";
263 /* no parent, must be root to delete */
264 if( ! be_isroot( op ) ) {
265 if ( be_issuffix( op->o_bd, (struct berval *)&slap_empty_bv )
266 || be_shadow_update( op ) ) {
267 p = (Entry *)&slap_entry_root;
269 /* check parent for "children" acl */
270 rs->sr_err = access_allowed( op, p,
271 children, NULL, ACL_WRITE, NULL );
276 switch( opinfo.boi_err ) {
277 case DB_LOCK_DEADLOCK:
278 case DB_LOCK_NOTGRANTED:
283 LDAP_LOG ( OPERATION, DETAIL1,
284 "<=- bdb_delete: no access to parent\n", 0, 0, 0 );
286 Debug( LDAP_DEBUG_TRACE,
287 "<=- bdb_delete: no access "
288 "to parent\n", 0, 0, 0 );
290 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
291 rs->sr_text = "no write access to parent";
297 LDAP_LOG ( OPERATION, DETAIL1,
298 "<=- bdb_delete: no parent and not root\n", 0, 0, 0 );
300 Debug( LDAP_DEBUG_TRACE,
301 "<=- bdb_delete: no parent "
302 "and not root\n", 0, 0, 0);
304 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
310 if ( get_assert( op ) &&
311 ( test_filter( op, e, get_assertion( op )) != LDAP_COMPARE_TRUE ))
313 rs->sr_err = LDAP_ASSERTION_FAILED;
317 rs->sr_err = access_allowed( op, e,
318 entry, NULL, ACL_WRITE, NULL );
321 switch( opinfo.boi_err ) {
322 case DB_LOCK_DEADLOCK:
323 case DB_LOCK_NOTGRANTED:
328 LDAP_LOG ( OPERATION, DETAIL1,
329 "<=- bdb_delete: no write access to entry\n", 0, 0, 0 );
331 Debug( LDAP_DEBUG_TRACE,
332 "<=- bdb_delete: no write access to entry\n",
335 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
336 rs->sr_text = "no write access to entry";
340 if ( !manageDSAit && is_entry_referral( e ) ) {
341 /* entry is a referral, don't allow delete */
342 rs->sr_ref = get_entry_referrals( op, e );
345 LDAP_LOG ( OPERATION, DETAIL1,
346 "<=- bdb_delete: entry is referral\n", 0, 0, 0 );
348 Debug( LDAP_DEBUG_TRACE,
349 "bdb_delete: entry is referral\n", 0, 0, 0 );
352 rs->sr_err = LDAP_REFERRAL;
353 rs->sr_matched = e->e_name.bv_val;
354 send_ldap_result( op, rs );
356 ber_bvarray_free( rs->sr_ref );
358 rs->sr_matched = NULL;
365 if( op->o_preread ) {
366 if( preread_ctrl == NULL ) {
367 preread_ctrl = &ctrls[num_ctrls++];
368 ctrls[num_ctrls] = NULL;
370 if( slap_read_controls( op, rs, e,
371 &slap_pre_read_bv, preread_ctrl ) )
374 LDAP_LOG ( OPERATION, DETAIL1,
375 "<=- bdb_delete: pre-read failed!\n", 0, 0, 0 );
377 Debug( LDAP_DEBUG_TRACE,
378 "<=- bdb_delete: pre-read failed!\n", 0, 0, 0 );
384 /* nested transaction */
385 rs->sr_err = TXN_BEGIN( bdb->bi_dbenv, ltid, <2,
386 bdb->bi_db_opflags );
388 if( rs->sr_err != 0 ) {
390 LDAP_LOG ( OPERATION, ERR,
391 "bdb_delete: txn_begin(2) failed: %s (%d)\n", db_strerror(rs->sr_err), rs->sr_err, 0 );
393 Debug( LDAP_DEBUG_TRACE,
394 "bdb_delete: txn_begin(2) failed: %s (%d)\n",
395 db_strerror(rs->sr_err), rs->sr_err, 0 );
397 rs->sr_err = LDAP_OTHER;
398 rs->sr_text = "internal error";
402 /* Can't do it if we have kids */
403 rs->sr_err = bdb_cache_children( op, lt2, e );
404 if( rs->sr_err != DB_NOTFOUND ) {
405 switch( rs->sr_err ) {
406 case DB_LOCK_DEADLOCK:
407 case DB_LOCK_NOTGRANTED:
411 LDAP_LOG ( OPERATION, DETAIL1,
412 "<=- bdb_delete: non-leaf %s\n", op->o_req_dn.bv_val, 0, 0 );
414 Debug(LDAP_DEBUG_ARGS,
415 "<=- bdb_delete: non-leaf %s\n",
416 op->o_req_dn.bv_val, 0, 0);
418 rs->sr_err = LDAP_NOT_ALLOWED_ON_NONLEAF;
419 rs->sr_text = "subtree delete not supported";
423 LDAP_LOG ( OPERATION, ERR,
424 "<=- bdb_delete: has_children failed %s (%d)\n",
425 db_strerror(rs->sr_err), rs->sr_err, 0 );
427 Debug(LDAP_DEBUG_ARGS,
428 "<=- bdb_delete: has_children failed: %s (%d)\n",
429 db_strerror(rs->sr_err), rs->sr_err, 0 );
431 rs->sr_err = LDAP_OTHER;
432 rs->sr_text = "internal error";
437 /* delete from dn2id */
438 rs->sr_err = bdb_dn2id_delete( op, lt2, eip, e );
439 if ( rs->sr_err != 0 ) {
441 LDAP_LOG ( OPERATION, ERR,
442 "<=- bdb_delete: dn2id failed: %s (%d)\n",
443 db_strerror(rs->sr_err), rs->sr_err, 0 );
445 Debug(LDAP_DEBUG_TRACE,
446 "<=- bdb_delete: dn2id failed: %s (%d)\n",
447 db_strerror(rs->sr_err), rs->sr_err, 0 );
449 switch( rs->sr_err ) {
450 case DB_LOCK_DEADLOCK:
451 case DB_LOCK_NOTGRANTED:
454 rs->sr_text = "DN index delete failed";
455 rs->sr_err = LDAP_OTHER;
459 /* delete from id2entry */
460 rs->sr_err = bdb_id2entry_delete( op->o_bd, lt2, e );
461 if ( rs->sr_err != 0 ) {
463 LDAP_LOG ( OPERATION, ERR,
464 "<=- bdb_delete: id2entry failed: %s (%d)\n",
465 db_strerror(rs->sr_err), rs->sr_err, 0 );
467 Debug(LDAP_DEBUG_TRACE,
468 "<=- bdb_delete: id2entry failed: %s (%d)\n",
469 db_strerror(rs->sr_err), rs->sr_err, 0 );
471 switch( rs->sr_err ) {
472 case DB_LOCK_DEADLOCK:
473 case DB_LOCK_NOTGRANTED:
476 rs->sr_text = "entry delete failed";
477 rs->sr_err = LDAP_OTHER;
481 /* delete indices for old attributes */
482 rs->sr_err = bdb_index_entry_del( op, lt2, e );
483 if ( rs->sr_err != LDAP_SUCCESS ) {
485 LDAP_LOG ( OPERATION, ERR,
486 "<=- bdb_delete: index failed: %s (%d)\n",
487 db_strerror(rs->sr_err), rs->sr_err, 0 );
489 Debug( LDAP_DEBUG_TRACE,
490 "<=- bdb_delete: index failed: %s (%d)\n",
491 db_strerror(rs->sr_err), rs->sr_err, 0 );
493 switch( rs->sr_err ) {
494 case DB_LOCK_DEADLOCK:
495 case DB_LOCK_NOTGRANTED:
498 rs->sr_text = "entry index delete failed";
499 rs->sr_err = LDAP_OTHER;
503 if ( pdn.bv_len != 0 ) {
504 parent_is_glue = is_entry_glue(p);
505 rs->sr_err = bdb_cache_children( op, lt2, p );
506 if ( rs->sr_err != DB_NOTFOUND ) {
507 switch( rs->sr_err ) {
508 case DB_LOCK_DEADLOCK:
509 case DB_LOCK_NOTGRANTED:
515 LDAP_LOG ( OPERATION, ERR,
516 "<=- bdb_delete: has_children failed %s (%d)\n",
517 db_strerror(rs->sr_err), rs->sr_err, 0 );
519 Debug(LDAP_DEBUG_ARGS,
520 "<=- bdb_delete: has_children failed: %s (%d)\n",
521 db_strerror(rs->sr_err), rs->sr_err, 0 );
523 rs->sr_err = LDAP_OTHER;
524 rs->sr_text = "internal error";
529 bdb_unlocked_cache_return_entry_r(&bdb->bi_cache, p);
533 if ( TXN_COMMIT( lt2, 0 ) != 0 ) {
534 rs->sr_err = LDAP_OTHER;
535 rs->sr_text = "txn_commit(2) failed";
539 #if 0 /* Do we want to reclaim deleted IDs? */
540 ldap_pvt_thread_mutex_lock( &bdb->bi_lastid_mutex );
541 if ( e->e_id == bdb->bi_lastid ) {
542 bdb_last_id( op->o_bd, ltid );
544 ldap_pvt_thread_mutex_unlock( &bdb->bi_lastid_mutex );
547 if ( LDAP_STAILQ_EMPTY( &op->o_bd->be_syncinfo )) {
548 rc = bdb_csn_commit( op, rs, ltid, ei, &suffix_ei,
549 &ctxcsn_e, &ctxcsn_added, locker );
559 if ( ( rs->sr_err = TXN_ABORT( ltid ) ) != 0 ) {
560 rs->sr_text = "txn_abort (no-op) failed";
562 rs->sr_err = LDAP_NO_OPERATION;
566 rc = bdb_cache_delete( &bdb->bi_cache, e, bdb->bi_dbenv,
569 case DB_LOCK_DEADLOCK:
570 case DB_LOCK_NOTGRANTED:
574 if ( LDAP_STAILQ_EMPTY( &op->o_bd->be_syncinfo )) {
575 if ( ctxcsn_added ) {
576 bdb_cache_add( bdb, suffix_ei,
577 ctxcsn_e, (struct berval *)&slap_ldapsync_cn_bv, locker );
581 if ( rs->sr_err == LDAP_SUCCESS && !op->o_no_psearch ) {
582 ldap_pvt_thread_rdwr_wlock( &bdb->bi_pslist_rwlock );
583 LDAP_LIST_FOREACH( ps_list, &bdb->bi_psearch_list, o_ps_link ) {
584 rc = bdb_psearch( op, rs, ps_list, e, LDAP_PSEARCH_BY_DELETE );
587 LDAP_LOG ( OPERATION, ERR,
588 "bdb_delete: persistent search failed (%d,%d)\n",
591 Debug( LDAP_DEBUG_TRACE,
592 "bdb_delete: persistent search failed (%d,%d)\n",
597 ldap_pvt_thread_rdwr_wunlock( &bdb->bi_pslist_rwlock );
600 rs->sr_err = TXN_COMMIT( ltid, 0 );
603 op->o_private = NULL;
605 if( rs->sr_err != 0 ) {
607 LDAP_LOG ( OPERATION, ERR,
608 "bdb_delete: txn_%s failed: %s (%d)\n",
609 op->o_noop ? "abort (no-op)" : "commit",
610 db_strerror(rs->sr_err), rs->sr_err );
612 Debug( LDAP_DEBUG_TRACE,
613 "bdb_delete: txn_%s failed: %s (%d)\n",
614 op->o_noop ? "abort (no-op)" : "commit",
615 db_strerror(rs->sr_err), rs->sr_err );
617 rs->sr_err = LDAP_OTHER;
618 rs->sr_text = "commit failed";
624 LDAP_LOG ( OPERATION, RESULTS,
625 "bdb_delete: deleted%s id=%08lx db=\"%s\"\n",
626 op->o_noop ? " (no-op)" : "",
629 Debug( LDAP_DEBUG_TRACE,
630 "bdb_delete: deleted%s id=%08lx dn=\"%s\"\n",
631 op->o_noop ? " (no-op)" : "",
634 rs->sr_err = LDAP_SUCCESS;
636 if( num_ctrls ) rs->sr_ctrls = ctrls;
639 send_ldap_result( op, rs );
641 if( rs->sr_err == LDAP_SUCCESS && bdb->bi_txn_cp ) {
642 ldap_pvt_thread_yield();
643 TXN_CHECKPOINT( bdb->bi_dbenv,
644 bdb->bi_txn_cp_kbyte, bdb->bi_txn_cp_min, 0 );
647 if ( rs->sr_err == LDAP_SUCCESS && parent_is_glue && parent_is_leaf ) {
648 op->o_delete_glue_parent = 1;
653 bdb_unlocked_cache_return_entry_r(&bdb->bi_cache, p);
657 if ( rs->sr_err == LDAP_SUCCESS ) {
658 /* Free the EntryInfo and the Entry */
659 bdb_cache_delete_cleanup( &bdb->bi_cache, e );
661 bdb_unlocked_cache_return_entry_w(&bdb->bi_cache, e);
667 op->o_private = NULL;
670 if( preread_ctrl != NULL ) {
671 slap_sl_free( (*preread_ctrl)->ldctl_value.bv_val, &op->o_tmpmemctx );
672 slap_sl_free( *preread_ctrl, &op->o_tmpmemctx );