1 /* delete.c - bdb backend delete routine */
3 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
5 * Copyright 2000-2007 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 = {0};
41 BDB_LOCKER locker = 0;
48 LDAPControl **preread_ctrl = NULL;
49 LDAPControl *ctrls[SLAP_MAX_RESPONSE_CONTROLS];
52 int parent_is_glue = 0;
53 int parent_is_leaf = 0;
59 Debug( LDAP_DEBUG_ARGS, "==> " LDAP_XSTRING(bdb_delete) ": %s\n",
60 op->o_req_dn.bv_val, 0, 0 );
64 /* acquire connection lock */
65 ldap_pvt_thread_mutex_lock( &op->o_conn->c_mutex );
66 if( op->o_conn->c_txn == CONN_TXN_INACTIVE ) {
67 rs->sr_text = "invalid transaction identifier";
68 rs->sr_err = LDAP_X_TXN_ID_INVALID;
70 } else if( op->o_conn->c_txn == CONN_TXN_SETTLE ) {
75 if( op->o_conn->c_txn_backend == NULL ) {
76 op->o_conn->c_txn_backend = op->o_bd;
78 } else if( op->o_conn->c_txn_backend != op->o_bd ) {
79 rs->sr_text = "transaction cannot span multiple database contexts";
80 rs->sr_err = LDAP_AFFECTS_MULTIPLE_DSAS;
84 /* insert operation into transaction */
86 rs->sr_text = "transaction specified";
87 rs->sr_err = LDAP_X_TXN_SPECIFY_OKAY;
90 /* release connection lock */
91 ldap_pvt_thread_mutex_unlock( &op->o_conn->c_mutex );
94 send_ldap_result( op, rs );
100 ctrls[num_ctrls] = 0;
103 if ( BER_BVISNULL( &op->o_csn ) ) {
105 char csnbuf[LDAP_LUTIL_CSNSTR_BUFSIZE];
108 csn.bv_len = sizeof(csnbuf);
109 slap_get_csn( op, &csn, 1 );
113 retry: /* transaction retry */
115 bdb_unlocked_cache_return_entry_w(&bdb->bi_cache, e);
119 bdb_unlocked_cache_return_entry_r(&bdb->bi_cache, p);
122 Debug( LDAP_DEBUG_TRACE,
123 "==> " LDAP_XSTRING(bdb_delete) ": retrying...\n",
125 rs->sr_err = TXN_ABORT( ltid );
127 op->o_private = NULL;
128 op->o_do_not_cache = opinfo.boi_acl_cache;
129 if( rs->sr_err != 0 ) {
130 rs->sr_err = LDAP_OTHER;
131 rs->sr_text = "internal error";
134 if ( op->o_abandon ) {
135 rs->sr_err = SLAPD_ABANDON;
140 bdb_trans_backoff( ++num_retries );
143 /* begin transaction */
144 rs->sr_err = TXN_BEGIN( bdb->bi_dbenv, NULL, <id,
145 bdb->bi_db_opflags );
147 if( rs->sr_err != 0 ) {
148 Debug( LDAP_DEBUG_TRACE,
149 LDAP_XSTRING(bdb_delete) ": txn_begin failed: "
150 "%s (%d)\n", db_strerror(rs->sr_err), rs->sr_err, 0 );
151 rs->sr_err = LDAP_OTHER;
152 rs->sr_text = "internal error";
156 locker = TXN_ID ( ltid );
158 opinfo.boi_bdb = op->o_bd;
159 opinfo.boi_txn = ltid;
160 opinfo.boi_locker = locker;
162 opinfo.boi_acl_cache = op->o_do_not_cache;
163 op->o_private = &opinfo;
165 if ( !be_issuffix( op->o_bd, &op->o_req_ndn ) ) {
166 dnParent( &op->o_req_ndn, &pdn );
170 rs->sr_err = bdb_dn2entry( op, ltid, &op->o_req_ndn, &ei, 1,
173 switch( rs->sr_err ) {
177 case DB_LOCK_DEADLOCK:
178 case DB_LOCK_NOTGRANTED:
181 rs->sr_text = "ldap server busy";
184 rs->sr_err = LDAP_OTHER;
185 rs->sr_text = "internal error";
189 if ( rs->sr_err == 0 ) {
191 eip = ei->bei_parent;
196 /* FIXME : dn2entry() should return non-glue entry */
197 if ( e == NULL || ( !manageDSAit && is_entry_glue( e ))) {
198 Debug( LDAP_DEBUG_ARGS,
199 "<=- " LDAP_XSTRING(bdb_delete) ": no such object %s\n",
200 op->o_req_dn.bv_val, 0, 0);
202 if ( matched != NULL ) {
203 rs->sr_matched = ch_strdup( matched->e_dn );
204 rs->sr_ref = is_entry_referral( matched )
205 ? get_entry_referrals( op, matched )
207 bdb_unlocked_cache_return_entry_r(&bdb->bi_cache, matched);
211 rs->sr_ref = referral_rewrite( default_referral, NULL,
212 &op->o_req_dn, LDAP_SCOPE_DEFAULT );
215 rs->sr_err = LDAP_REFERRAL;
216 rs->sr_flags = REP_MATCHED_MUSTBEFREED | REP_REF_MUSTBEFREED;
220 rc = bdb_cache_find_id( op, ltid, eip->bei_id, &eip, 0, locker, &plock );
222 case DB_LOCK_DEADLOCK:
223 case DB_LOCK_NOTGRANTED:
229 rs->sr_err = LDAP_OTHER;
230 rs->sr_text = "internal error";
233 if ( eip ) p = eip->bei_e;
235 if ( pdn.bv_len != 0 ) {
236 if( p == NULL || !bvmatch( &pdn, &p->e_nname )) {
237 Debug( LDAP_DEBUG_TRACE,
238 "<=- " LDAP_XSTRING(bdb_delete) ": parent "
239 "does not exist\n", 0, 0, 0 );
240 rs->sr_err = LDAP_OTHER;
241 rs->sr_text = "could not locate parent of entry";
245 /* check parent for "children" acl */
246 rs->sr_err = access_allowed( op, p,
247 children, NULL, ACL_WDEL, NULL );
250 switch( opinfo.boi_err ) {
251 case DB_LOCK_DEADLOCK:
252 case DB_LOCK_NOTGRANTED:
256 Debug( LDAP_DEBUG_TRACE,
257 "<=- " LDAP_XSTRING(bdb_delete) ": no write "
258 "access to parent\n", 0, 0, 0 );
259 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
260 rs->sr_text = "no write access to parent";
265 /* no parent, must be root to delete */
266 if( ! be_isroot( op ) ) {
267 if ( be_issuffix( op->o_bd, (struct berval *)&slap_empty_bv )
268 || be_shadow_update( op ) ) {
269 p = (Entry *)&slap_entry_root;
271 /* check parent for "children" acl */
272 rs->sr_err = access_allowed( op, p,
273 children, NULL, ACL_WDEL, NULL );
278 switch( opinfo.boi_err ) {
279 case DB_LOCK_DEADLOCK:
280 case DB_LOCK_NOTGRANTED:
284 Debug( LDAP_DEBUG_TRACE,
285 "<=- " LDAP_XSTRING(bdb_delete)
286 ": no access to parent\n",
288 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
289 rs->sr_text = "no write access to parent";
294 Debug( LDAP_DEBUG_TRACE,
295 "<=- " LDAP_XSTRING(bdb_delete)
296 ": no parent and not root\n", 0, 0, 0 );
297 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
303 if ( get_assert( op ) &&
304 ( test_filter( op, e, get_assertion( op )) != LDAP_COMPARE_TRUE ))
306 rs->sr_err = LDAP_ASSERTION_FAILED;
310 rs->sr_err = access_allowed( op, e,
311 entry, NULL, ACL_WDEL, NULL );
314 switch( opinfo.boi_err ) {
315 case DB_LOCK_DEADLOCK:
316 case DB_LOCK_NOTGRANTED:
320 Debug( LDAP_DEBUG_TRACE,
321 "<=- " LDAP_XSTRING(bdb_delete) ": no write access "
322 "to entry\n", 0, 0, 0 );
323 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
324 rs->sr_text = "no write access to entry";
328 if ( !manageDSAit && is_entry_referral( e ) ) {
329 /* entry is a referral, don't allow delete */
330 rs->sr_ref = get_entry_referrals( op, e );
332 Debug( LDAP_DEBUG_TRACE,
333 LDAP_XSTRING(bdb_delete) ": entry is referral\n",
336 rs->sr_err = LDAP_REFERRAL;
337 rs->sr_matched = ch_strdup( e->e_name.bv_val );
338 rs->sr_flags = REP_MATCHED_MUSTBEFREED | REP_REF_MUSTBEFREED;
343 if( op->o_preread ) {
344 if( preread_ctrl == NULL ) {
345 preread_ctrl = &ctrls[num_ctrls++];
346 ctrls[num_ctrls] = NULL;
348 if( slap_read_controls( op, rs, e,
349 &slap_pre_read_bv, preread_ctrl ) )
351 Debug( LDAP_DEBUG_TRACE,
352 "<=- " LDAP_XSTRING(bdb_delete) ": pre-read "
353 "failed!\n", 0, 0, 0 );
354 if ( op->o_preread & SLAP_CONTROL_CRITICAL ) {
355 /* FIXME: is it correct to abort
356 * operation if control fails? */
362 /* nested transaction */
363 rs->sr_err = TXN_BEGIN( bdb->bi_dbenv, ltid, <2,
364 bdb->bi_db_opflags );
366 if( rs->sr_err != 0 ) {
367 Debug( LDAP_DEBUG_TRACE,
368 LDAP_XSTRING(bdb_delete) ": txn_begin(2) failed: "
369 "%s (%d)\n", db_strerror(rs->sr_err), rs->sr_err, 0 );
370 rs->sr_err = LDAP_OTHER;
371 rs->sr_text = "internal error";
375 /* Can't do it if we have kids */
376 rs->sr_err = bdb_cache_children( op, lt2, e );
377 if( rs->sr_err != DB_NOTFOUND ) {
378 switch( rs->sr_err ) {
379 case DB_LOCK_DEADLOCK:
380 case DB_LOCK_NOTGRANTED:
383 Debug(LDAP_DEBUG_ARGS,
384 "<=- " LDAP_XSTRING(bdb_delete)
386 op->o_req_dn.bv_val, 0, 0);
387 rs->sr_err = LDAP_NOT_ALLOWED_ON_NONLEAF;
388 rs->sr_text = "subordinate objects must be deleted first";
391 Debug(LDAP_DEBUG_ARGS,
392 "<=- " LDAP_XSTRING(bdb_delete)
393 ": has_children failed: %s (%d)\n",
394 db_strerror(rs->sr_err), rs->sr_err, 0 );
395 rs->sr_err = LDAP_OTHER;
396 rs->sr_text = "internal error";
401 /* delete from dn2id */
402 rs->sr_err = bdb_dn2id_delete( op, lt2, eip, e );
403 if ( rs->sr_err != 0 ) {
404 Debug(LDAP_DEBUG_TRACE,
405 "<=- " LDAP_XSTRING(bdb_delete) ": dn2id failed: "
406 "%s (%d)\n", db_strerror(rs->sr_err), rs->sr_err, 0 );
407 switch( rs->sr_err ) {
408 case DB_LOCK_DEADLOCK:
409 case DB_LOCK_NOTGRANTED:
412 rs->sr_text = "DN index delete failed";
413 rs->sr_err = LDAP_OTHER;
417 /* delete indices for old attributes */
418 rs->sr_err = bdb_index_entry_del( op, lt2, e );
419 if ( rs->sr_err != LDAP_SUCCESS ) {
420 Debug(LDAP_DEBUG_TRACE,
421 "<=- " LDAP_XSTRING(bdb_delete) ": index failed: "
422 "%s (%d)\n", db_strerror(rs->sr_err), rs->sr_err, 0 );
423 switch( rs->sr_err ) {
424 case DB_LOCK_DEADLOCK:
425 case DB_LOCK_NOTGRANTED:
428 rs->sr_text = "entry index delete failed";
429 rs->sr_err = LDAP_OTHER;
433 /* fixup delete CSN */
434 if ( !SLAP_SHADOW( op->o_bd )) {
435 struct berval vals[2];
437 assert( !BER_BVISNULL( &op->o_csn ) );
439 BER_BVZERO( &vals[1] );
440 rs->sr_err = bdb_index_values( op, lt2, slap_schema.si_ad_entryCSN,
441 vals, 0, SLAP_INDEX_ADD_OP );
442 if ( rs->sr_err != LDAP_SUCCESS ) {
443 switch( rs->sr_err ) {
444 case DB_LOCK_DEADLOCK:
445 case DB_LOCK_NOTGRANTED:
448 rs->sr_text = "entryCSN index update failed";
449 rs->sr_err = LDAP_OTHER;
454 /* delete from id2entry */
455 rs->sr_err = bdb_id2entry_delete( op->o_bd, lt2, e );
456 if ( rs->sr_err != 0 ) {
457 Debug( LDAP_DEBUG_TRACE,
458 "<=- " LDAP_XSTRING(bdb_delete) ": id2entry failed: "
459 "%s (%d)\n", db_strerror(rs->sr_err), rs->sr_err, 0 );
460 switch( rs->sr_err ) {
461 case DB_LOCK_DEADLOCK:
462 case DB_LOCK_NOTGRANTED:
465 rs->sr_text = "entry delete failed";
466 rs->sr_err = LDAP_OTHER;
470 if ( pdn.bv_len != 0 ) {
471 parent_is_glue = is_entry_glue(p);
472 rs->sr_err = bdb_cache_children( op, lt2, p );
473 if ( rs->sr_err != DB_NOTFOUND ) {
474 switch( rs->sr_err ) {
475 case DB_LOCK_DEADLOCK:
476 case DB_LOCK_NOTGRANTED:
481 Debug(LDAP_DEBUG_ARGS,
482 "<=- " LDAP_XSTRING(bdb_delete)
483 ": has_children failed: %s (%d)\n",
484 db_strerror(rs->sr_err), rs->sr_err, 0 );
485 rs->sr_err = LDAP_OTHER;
486 rs->sr_text = "internal error";
491 bdb_unlocked_cache_return_entry_r(&bdb->bi_cache, p);
495 if ( TXN_COMMIT( lt2, 0 ) != 0 ) {
496 rs->sr_err = LDAP_OTHER;
497 rs->sr_text = "txn_commit(2) failed";
503 #if 0 /* Do we want to reclaim deleted IDs? */
504 ldap_pvt_thread_mutex_lock( &bdb->bi_lastid_mutex );
505 if ( e->e_id == bdb->bi_lastid ) {
506 bdb_last_id( op->o_bd, ltid );
508 ldap_pvt_thread_mutex_unlock( &bdb->bi_lastid_mutex );
512 if ( ( rs->sr_err = TXN_ABORT( ltid ) ) != 0 ) {
513 rs->sr_text = "txn_abort (no-op) failed";
515 rs->sr_err = LDAP_X_NO_OPERATION;
520 rc = bdb_cache_delete( bdb, e, locker, &lock );
522 case DB_LOCK_DEADLOCK:
523 case DB_LOCK_NOTGRANTED:
527 rs->sr_err = TXN_COMMIT( ltid, 0 );
530 op->o_private = NULL;
532 if( rs->sr_err != 0 ) {
533 Debug( LDAP_DEBUG_TRACE,
534 LDAP_XSTRING(bdb_delete) ": txn_%s failed: %s (%d)\n",
535 op->o_noop ? "abort (no-op)" : "commit",
536 db_strerror(rs->sr_err), rs->sr_err );
537 rs->sr_err = LDAP_OTHER;
538 rs->sr_text = "commit failed";
543 Debug( LDAP_DEBUG_TRACE,
544 LDAP_XSTRING(bdb_delete) ": deleted%s id=%08lx dn=\"%s\"\n",
545 op->o_noop ? " (no-op)" : "",
546 eid, op->o_req_dn.bv_val );
547 rs->sr_err = LDAP_SUCCESS;
549 if( num_ctrls ) rs->sr_ctrls = ctrls;
552 if ( rs->sr_err == LDAP_SUCCESS && parent_is_glue && parent_is_leaf ) {
553 op->o_delete_glue_parent = 1;
557 bdb_unlocked_cache_return_entry_r(&bdb->bi_cache, p);
561 if ( rs->sr_err == LDAP_SUCCESS ) {
562 /* Free the EntryInfo and the Entry */
563 bdb_cache_delete_cleanup( &bdb->bi_cache, BEI(e) );
565 bdb_unlocked_cache_return_entry_w(&bdb->bi_cache, e);
572 op->o_private = NULL;
574 send_ldap_result( op, rs );
575 slap_graduate_commit_csn( op );
577 if( preread_ctrl != NULL && (*preread_ctrl) != NULL ) {
578 slap_sl_free( (*preread_ctrl)->ldctl_value.bv_val, op->o_tmpmemctx );
579 slap_sl_free( *preread_ctrl, op->o_tmpmemctx );
582 if( rs->sr_err == LDAP_SUCCESS && bdb->bi_txn_cp_kbyte ) {
583 TXN_CHECKPOINT( bdb->bi_dbenv,
584 bdb->bi_txn_cp_kbyte, bdb->bi_txn_cp_min, 0 );