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;
52 LDAPControl **preread_ctrl = NULL;
53 LDAPControl *ctrls[SLAP_MAX_RESPONSE_CONTROLS];
56 int parent_is_glue = 0;
57 int parent_is_leaf = 0;
59 struct berval ctxcsn_ndn = BER_BVNULL;
63 Debug( LDAP_DEBUG_ARGS, "==> bdb_delete: %s\n",
64 op->o_req_dn.bv_val, 0, 0 );
66 build_new_dn( &ctxcsn_ndn, &op->o_bd->be_nsuffix[0],
67 (struct berval *)&slap_ldapsync_cn_bv, op->o_tmpmemctx );
70 retry: /* transaction retry */
72 bdb_unlocked_cache_return_entry_w(&bdb->bi_cache, e);
76 bdb_unlocked_cache_return_entry_r(&bdb->bi_cache, p);
79 Debug( LDAP_DEBUG_TRACE, "==> bdb_delete: retrying...\n",
81 rs->sr_err = TXN_ABORT( ltid );
84 op->o_do_not_cache = opinfo.boi_acl_cache;
85 if( rs->sr_err != 0 ) {
86 rs->sr_err = LDAP_OTHER;
87 rs->sr_text = "internal error";
92 ldap_pvt_thread_yield();
93 bdb_trans_backoff( ++num_retries );
96 /* begin transaction */
97 rs->sr_err = TXN_BEGIN( bdb->bi_dbenv, NULL, <id,
100 if( rs->sr_err != 0 ) {
101 Debug( LDAP_DEBUG_TRACE,
102 "bdb_delete: txn_begin failed: %s (%d)\n",
103 db_strerror(rs->sr_err), rs->sr_err, 0 );
104 rs->sr_err = LDAP_OTHER;
105 rs->sr_text = "internal error";
109 locker = TXN_ID ( ltid );
111 opinfo.boi_bdb = op->o_bd;
112 opinfo.boi_txn = ltid;
113 opinfo.boi_locker = locker;
115 opinfo.boi_acl_cache = op->o_do_not_cache;
116 op->o_private = &opinfo;
118 if ( !be_issuffix( op->o_bd, &op->o_req_ndn ) ) {
119 dnParent( &op->o_req_ndn, &pdn );
123 rs->sr_err = bdb_dn2entry( op, ltid, &op->o_req_ndn, &ei, 1,
126 switch( rs->sr_err ) {
130 case DB_LOCK_DEADLOCK:
131 case DB_LOCK_NOTGRANTED:
134 rs->sr_text = "ldap server busy";
137 rs->sr_err = LDAP_OTHER;
138 rs->sr_text = "internal error";
142 if ( rs->sr_err == 0 ) {
144 eip = ei->bei_parent;
149 /* FIXME : dn2entry() should return non-glue entry */
150 if ( e == NULL || ( !manageDSAit && is_entry_glue( e ))) {
151 BerVarray deref = NULL;
153 Debug( LDAP_DEBUG_ARGS,
154 "<=- bdb_delete: no such object %s\n",
155 op->o_req_dn.bv_val, 0, 0);
157 if ( matched != NULL ) {
158 rs->sr_matched = ch_strdup( matched->e_dn );
159 rs->sr_ref = is_entry_referral( matched )
160 ? get_entry_referrals( op, matched )
162 bdb_unlocked_cache_return_entry_r(&bdb->bi_cache, matched);
166 if ( !LDAP_STAILQ_EMPTY( &op->o_bd->be_syncinfo )) {
168 LDAP_STAILQ_FOREACH( si, &op->o_bd->be_syncinfo, si_next ) {
170 ber_dupbv( &tmpbv, &si->si_provideruri_bv[0] );
171 ber_bvarray_add( &deref, &tmpbv );
174 deref = default_referral;
176 rs->sr_ref = referral_rewrite( deref, NULL, &op->o_req_dn,
177 LDAP_SCOPE_DEFAULT );
180 rs->sr_err = LDAP_REFERRAL;
181 send_ldap_result( op, rs );
183 if ( rs->sr_ref != default_referral ) {
184 ber_bvarray_free( rs->sr_ref );
186 if ( deref != default_referral ) {
187 ber_bvarray_free( deref );
189 free( (char *)rs->sr_matched );
191 rs->sr_matched = NULL;
197 rc = bdb_cache_find_id( op, ltid, eip->bei_id, &eip, 0, locker, &plock );
199 case DB_LOCK_DEADLOCK:
200 case DB_LOCK_NOTGRANTED:
206 rs->sr_err = LDAP_OTHER;
207 rs->sr_text = "internal error";
210 if ( eip ) p = eip->bei_e;
212 if ( pdn.bv_len != 0 ) {
213 if( p == NULL || !bvmatch( &pdn, &p->e_nname )) {
214 Debug( LDAP_DEBUG_TRACE,
215 "<=- bdb_delete: parent does not exist\n",
217 rs->sr_err = LDAP_OTHER;
218 rs->sr_text = "could not locate parent of entry";
222 /* check parent for "children" acl */
223 rs->sr_err = access_allowed( op, p,
224 children, NULL, ACL_WRITE, NULL );
227 switch( opinfo.boi_err ) {
228 case DB_LOCK_DEADLOCK:
229 case DB_LOCK_NOTGRANTED:
233 Debug( LDAP_DEBUG_TRACE,
234 "<=- bdb_delete: no write access to parent\n",
236 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
237 rs->sr_text = "no write access to parent";
242 /* no parent, must be root to delete */
243 if( ! be_isroot( op ) ) {
244 if ( be_issuffix( op->o_bd, (struct berval *)&slap_empty_bv )
245 || be_shadow_update( op ) ) {
246 p = (Entry *)&slap_entry_root;
248 /* check parent for "children" acl */
249 rs->sr_err = access_allowed( op, p,
250 children, NULL, ACL_WRITE, NULL );
255 switch( opinfo.boi_err ) {
256 case DB_LOCK_DEADLOCK:
257 case DB_LOCK_NOTGRANTED:
261 Debug( LDAP_DEBUG_TRACE,
262 "<=- bdb_delete: no access "
263 "to parent\n", 0, 0, 0 );
264 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
265 rs->sr_text = "no write access to parent";
270 Debug( LDAP_DEBUG_TRACE,
271 "<=- bdb_delete: no parent "
272 "and not root\n", 0, 0, 0);
273 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
279 if ( get_assert( op ) &&
280 ( test_filter( op, e, get_assertion( op )) != LDAP_COMPARE_TRUE ))
282 rs->sr_err = LDAP_ASSERTION_FAILED;
286 rs->sr_err = access_allowed( op, e,
287 entry, NULL, ACL_WRITE, NULL );
290 switch( opinfo.boi_err ) {
291 case DB_LOCK_DEADLOCK:
292 case DB_LOCK_NOTGRANTED:
296 Debug( LDAP_DEBUG_TRACE,
297 "<=- bdb_delete: no write access to entry\n",
299 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
300 rs->sr_text = "no write access to entry";
304 if ( !manageDSAit && is_entry_referral( e ) ) {
305 /* entry is a referral, don't allow delete */
306 rs->sr_ref = get_entry_referrals( op, e );
308 Debug( LDAP_DEBUG_TRACE,
309 "bdb_delete: entry is referral\n", 0, 0, 0 );
311 rs->sr_err = LDAP_REFERRAL;
312 rs->sr_matched = e->e_name.bv_val;
313 send_ldap_result( op, rs );
315 ber_bvarray_free( rs->sr_ref );
317 rs->sr_matched = NULL;
324 if( op->o_preread ) {
325 if( preread_ctrl == NULL ) {
326 preread_ctrl = &ctrls[num_ctrls++];
327 ctrls[num_ctrls] = NULL;
329 if( slap_read_controls( op, rs, e,
330 &slap_pre_read_bv, preread_ctrl ) )
332 Debug( LDAP_DEBUG_TRACE,
333 "<=- bdb_delete: pre-read failed!\n", 0, 0, 0 );
338 /* nested transaction */
339 rs->sr_err = TXN_BEGIN( bdb->bi_dbenv, ltid, <2,
340 bdb->bi_db_opflags );
342 if( rs->sr_err != 0 ) {
343 Debug( LDAP_DEBUG_TRACE,
344 "bdb_delete: txn_begin(2) failed: %s (%d)\n",
345 db_strerror(rs->sr_err), rs->sr_err, 0 );
346 rs->sr_err = LDAP_OTHER;
347 rs->sr_text = "internal error";
351 /* Can't do it if we have kids */
352 rs->sr_err = bdb_cache_children( op, lt2, e );
353 if( rs->sr_err != DB_NOTFOUND ) {
354 switch( rs->sr_err ) {
355 case DB_LOCK_DEADLOCK:
356 case DB_LOCK_NOTGRANTED:
359 Debug(LDAP_DEBUG_ARGS,
360 "<=- bdb_delete: non-leaf %s\n",
361 op->o_req_dn.bv_val, 0, 0);
362 rs->sr_err = LDAP_NOT_ALLOWED_ON_NONLEAF;
363 rs->sr_text = "subtree delete not supported";
366 Debug(LDAP_DEBUG_ARGS,
367 "<=- bdb_delete: has_children failed: %s (%d)\n",
368 db_strerror(rs->sr_err), rs->sr_err, 0 );
369 rs->sr_err = LDAP_OTHER;
370 rs->sr_text = "internal error";
375 ldap_pvt_thread_rdwr_wlock( &bdb->bi_pslist_rwlock );
376 LDAP_LIST_FOREACH( ps_list, &bdb->bi_psearch_list, o_ps_link ) {
377 rc = bdb_psearch( op, rs, ps_list, e, LDAP_PSEARCH_BY_PREDELETE );
378 if ( rc == LDAP_BUSY && op->o_ps_send_wait ) {
379 ldap_pvt_thread_rdwr_wunlock( &bdb->bi_pslist_rwlock );
382 Debug( LDAP_DEBUG_TRACE,
383 "bdb_delete: persistent search failed (%d,%d)\n",
387 ldap_pvt_thread_rdwr_wunlock( &bdb->bi_pslist_rwlock );
389 /* delete from dn2id */
390 rs->sr_err = bdb_dn2id_delete( op, lt2, eip, e );
391 if ( rs->sr_err != 0 ) {
392 Debug(LDAP_DEBUG_TRACE,
393 "<=- bdb_delete: dn2id failed: %s (%d)\n",
394 db_strerror(rs->sr_err), rs->sr_err, 0 );
395 switch( rs->sr_err ) {
396 case DB_LOCK_DEADLOCK:
397 case DB_LOCK_NOTGRANTED:
400 rs->sr_text = "DN index delete failed";
401 rs->sr_err = LDAP_OTHER;
405 /* delete from id2entry */
406 rs->sr_err = bdb_id2entry_delete( op->o_bd, lt2, e );
407 if ( rs->sr_err != 0 ) {
408 Debug(LDAP_DEBUG_TRACE,
409 "<=- bdb_delete: id2entry failed: %s (%d)\n",
410 db_strerror(rs->sr_err), rs->sr_err, 0 );
411 switch( rs->sr_err ) {
412 case DB_LOCK_DEADLOCK:
413 case DB_LOCK_NOTGRANTED:
416 rs->sr_text = "entry delete failed";
417 rs->sr_err = LDAP_OTHER;
421 /* delete indices for old attributes */
422 rs->sr_err = bdb_index_entry_del( op, lt2, e );
423 if ( rs->sr_err != LDAP_SUCCESS ) {
424 Debug( LDAP_DEBUG_TRACE,
425 "<=- bdb_delete: index failed: %s (%d)\n",
426 db_strerror(rs->sr_err), rs->sr_err, 0 );
427 switch( rs->sr_err ) {
428 case DB_LOCK_DEADLOCK:
429 case DB_LOCK_NOTGRANTED:
432 rs->sr_text = "entry index delete failed";
433 rs->sr_err = LDAP_OTHER;
437 if ( pdn.bv_len != 0 ) {
438 parent_is_glue = is_entry_glue(p);
439 rs->sr_err = bdb_cache_children( op, lt2, p );
440 if ( rs->sr_err != DB_NOTFOUND ) {
441 switch( rs->sr_err ) {
442 case DB_LOCK_DEADLOCK:
443 case DB_LOCK_NOTGRANTED:
448 Debug(LDAP_DEBUG_ARGS,
449 "<=- bdb_delete: has_children failed: %s (%d)\n",
450 db_strerror(rs->sr_err), rs->sr_err, 0 );
451 rs->sr_err = LDAP_OTHER;
452 rs->sr_text = "internal error";
457 bdb_unlocked_cache_return_entry_r(&bdb->bi_cache, p);
461 if ( TXN_COMMIT( lt2, 0 ) != 0 ) {
462 rs->sr_err = LDAP_OTHER;
463 rs->sr_text = "txn_commit(2) failed";
469 #if 0 /* Do we want to reclaim deleted IDs? */
470 ldap_pvt_thread_mutex_lock( &bdb->bi_lastid_mutex );
471 if ( e->e_id == bdb->bi_lastid ) {
472 bdb_last_id( op->o_bd, ltid );
474 ldap_pvt_thread_mutex_unlock( &bdb->bi_lastid_mutex );
477 if ( !dn_match( &ctxcsn_ndn, &op->o_req_ndn ) &&
478 !be_issuffix( op->o_bd, &op->o_req_ndn ) &&
479 LDAP_STAILQ_EMPTY( &op->o_bd->be_syncinfo )) {
480 rc = bdb_csn_commit( op, rs, ltid, ei, &suffix_ei,
481 &ctxcsn_e, &ctxcsn_added, locker );
491 if ( ( rs->sr_err = TXN_ABORT( ltid ) ) != 0 ) {
492 rs->sr_text = "txn_abort (no-op) failed";
494 rs->sr_err = LDAP_NO_OPERATION;
498 rc = bdb_cache_delete( &bdb->bi_cache, e, bdb->bi_dbenv,
501 case DB_LOCK_DEADLOCK:
502 case DB_LOCK_NOTGRANTED:
506 if ( LDAP_STAILQ_EMPTY( &op->o_bd->be_syncinfo )) {
507 if ( ctxcsn_added ) {
508 bdb_cache_add( bdb, suffix_ei,
509 ctxcsn_e, (struct berval *)&slap_ldapsync_cn_bv, locker );
513 if ( rs->sr_err == LDAP_SUCCESS && !op->o_no_psearch ) {
515 a = attr_find( e->e_attrs, slap_schema.si_ad_entryCSN );
517 if( (void *) e->e_attrs != (void *) (e+1)) {
518 attr_delete( &e->e_attrs, slap_schema.si_ad_entryCSN );
519 attr_merge_normalize_one( e, slap_schema.si_ad_entryCSN,
520 &op->o_sync_csn, NULL );
522 a->a_vals[0] = op->o_sync_csn;
525 /* Hm, the entryCSN ought to exist. ??? */
527 ldap_pvt_thread_rdwr_wlock( &bdb->bi_pslist_rwlock );
528 LDAP_LIST_FOREACH( ps_list, &bdb->bi_psearch_list, o_ps_link ) {
529 rc = bdb_psearch( op, rs, ps_list, e, LDAP_PSEARCH_BY_DELETE );
531 Debug( LDAP_DEBUG_TRACE,
532 "bdb_delete: persistent search failed (%d,%d)\n",
536 ldap_pvt_thread_rdwr_wunlock( &bdb->bi_pslist_rwlock );
539 rs->sr_err = TXN_COMMIT( ltid, 0 );
542 op->o_private = NULL;
544 if( rs->sr_err != 0 ) {
545 Debug( LDAP_DEBUG_TRACE,
546 "bdb_delete: txn_%s failed: %s (%d)\n",
547 op->o_noop ? "abort (no-op)" : "commit",
548 db_strerror(rs->sr_err), rs->sr_err );
549 rs->sr_err = LDAP_OTHER;
550 rs->sr_text = "commit failed";
555 Debug( LDAP_DEBUG_TRACE,
556 "bdb_delete: deleted%s id=%08lx dn=\"%s\"\n",
557 op->o_noop ? " (no-op)" : "",
558 eid, op->o_req_dn.bv_val );
559 rs->sr_err = LDAP_SUCCESS;
561 if( num_ctrls ) rs->sr_ctrls = ctrls;
564 send_ldap_result( op, rs );
566 if( rs->sr_err == LDAP_SUCCESS && bdb->bi_txn_cp ) {
567 ldap_pvt_thread_yield();
568 TXN_CHECKPOINT( bdb->bi_dbenv,
569 bdb->bi_txn_cp_kbyte, bdb->bi_txn_cp_min, 0 );
572 if ( rs->sr_err == LDAP_SUCCESS && parent_is_glue && parent_is_leaf ) {
573 op->o_delete_glue_parent = 1;
578 bdb_unlocked_cache_return_entry_r(&bdb->bi_cache, p);
582 if ( rs->sr_err == LDAP_SUCCESS ) {
583 /* Free the EntryInfo and the Entry */
584 bdb_cache_delete_cleanup( &bdb->bi_cache, BEI(e) );
586 bdb_unlocked_cache_return_entry_w(&bdb->bi_cache, e);
592 op->o_private = NULL;
595 slap_sl_free( ctxcsn_ndn.bv_val, op->o_tmpmemctx );
597 if( preread_ctrl != NULL ) {
598 slap_sl_free( (*preread_ctrl)->ldctl_value.bv_val, &op->o_tmpmemctx );
599 slap_sl_free( *preread_ctrl, &op->o_tmpmemctx );