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;
161 opinfo.boi_acl_cache = op->o_do_not_cache;
162 op->o_private = &opinfo;
164 if ( !be_issuffix( op->o_bd, &op->o_req_ndn ) ) {
165 dnParent( &op->o_req_ndn, &pdn );
169 rs->sr_err = bdb_dn2entry( op, ltid, &op->o_req_ndn, &ei, 1,
172 switch( rs->sr_err ) {
176 case DB_LOCK_DEADLOCK:
177 case DB_LOCK_NOTGRANTED:
180 rs->sr_text = "ldap server busy";
183 rs->sr_err = LDAP_OTHER;
184 rs->sr_text = "internal error";
188 if ( rs->sr_err == 0 ) {
190 eip = ei->bei_parent;
195 /* FIXME : dn2entry() should return non-glue entry */
196 if ( e == NULL || ( !manageDSAit && is_entry_glue( e ))) {
197 Debug( LDAP_DEBUG_ARGS,
198 "<=- " LDAP_XSTRING(bdb_delete) ": no such object %s\n",
199 op->o_req_dn.bv_val, 0, 0);
201 if ( matched != NULL ) {
202 rs->sr_matched = ch_strdup( matched->e_dn );
203 rs->sr_ref = is_entry_referral( matched )
204 ? get_entry_referrals( op, matched )
206 bdb_unlocked_cache_return_entry_r(&bdb->bi_cache, matched);
210 rs->sr_ref = referral_rewrite( default_referral, NULL,
211 &op->o_req_dn, LDAP_SCOPE_DEFAULT );
214 rs->sr_err = LDAP_REFERRAL;
215 rs->sr_flags = REP_MATCHED_MUSTBEFREED | REP_REF_MUSTBEFREED;
219 rc = bdb_cache_find_id( op, ltid, eip->bei_id, &eip, 0, locker, &plock );
221 case DB_LOCK_DEADLOCK:
222 case DB_LOCK_NOTGRANTED:
228 rs->sr_err = LDAP_OTHER;
229 rs->sr_text = "internal error";
232 if ( eip ) p = eip->bei_e;
234 if ( pdn.bv_len != 0 ) {
235 if( p == NULL || !bvmatch( &pdn, &p->e_nname )) {
236 Debug( LDAP_DEBUG_TRACE,
237 "<=- " LDAP_XSTRING(bdb_delete) ": parent "
238 "does not exist\n", 0, 0, 0 );
239 rs->sr_err = LDAP_OTHER;
240 rs->sr_text = "could not locate parent of entry";
244 /* check parent for "children" acl */
245 rs->sr_err = access_allowed( op, p,
246 children, NULL, ACL_WDEL, NULL );
249 switch( opinfo.boi_err ) {
250 case DB_LOCK_DEADLOCK:
251 case DB_LOCK_NOTGRANTED:
255 Debug( LDAP_DEBUG_TRACE,
256 "<=- " LDAP_XSTRING(bdb_delete) ": no write "
257 "access to parent\n", 0, 0, 0 );
258 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
259 rs->sr_text = "no write access to parent";
264 /* no parent, must be root to delete */
265 if( ! be_isroot( op ) ) {
266 if ( be_issuffix( op->o_bd, (struct berval *)&slap_empty_bv )
267 || be_shadow_update( op ) ) {
268 p = (Entry *)&slap_entry_root;
270 /* check parent for "children" acl */
271 rs->sr_err = access_allowed( op, p,
272 children, NULL, ACL_WDEL, NULL );
277 switch( opinfo.boi_err ) {
278 case DB_LOCK_DEADLOCK:
279 case DB_LOCK_NOTGRANTED:
283 Debug( LDAP_DEBUG_TRACE,
284 "<=- " LDAP_XSTRING(bdb_delete)
285 ": no access to parent\n",
287 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
288 rs->sr_text = "no write access to parent";
293 Debug( LDAP_DEBUG_TRACE,
294 "<=- " LDAP_XSTRING(bdb_delete)
295 ": no parent and not root\n", 0, 0, 0 );
296 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
302 if ( get_assert( op ) &&
303 ( test_filter( op, e, get_assertion( op )) != LDAP_COMPARE_TRUE ))
305 rs->sr_err = LDAP_ASSERTION_FAILED;
309 rs->sr_err = access_allowed( op, e,
310 entry, NULL, ACL_WDEL, NULL );
313 switch( opinfo.boi_err ) {
314 case DB_LOCK_DEADLOCK:
315 case DB_LOCK_NOTGRANTED:
319 Debug( LDAP_DEBUG_TRACE,
320 "<=- " LDAP_XSTRING(bdb_delete) ": no write access "
321 "to entry\n", 0, 0, 0 );
322 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
323 rs->sr_text = "no write access to entry";
327 if ( !manageDSAit && is_entry_referral( e ) ) {
328 /* entry is a referral, don't allow delete */
329 rs->sr_ref = get_entry_referrals( op, e );
331 Debug( LDAP_DEBUG_TRACE,
332 LDAP_XSTRING(bdb_delete) ": entry is referral\n",
335 rs->sr_err = LDAP_REFERRAL;
336 rs->sr_matched = ch_strdup( e->e_name.bv_val );
337 rs->sr_flags = REP_MATCHED_MUSTBEFREED | REP_REF_MUSTBEFREED;
342 if( op->o_preread ) {
343 if( preread_ctrl == NULL ) {
344 preread_ctrl = &ctrls[num_ctrls++];
345 ctrls[num_ctrls] = NULL;
347 if( slap_read_controls( op, rs, e,
348 &slap_pre_read_bv, preread_ctrl ) )
350 Debug( LDAP_DEBUG_TRACE,
351 "<=- " LDAP_XSTRING(bdb_delete) ": pre-read "
352 "failed!\n", 0, 0, 0 );
353 if ( op->o_preread & SLAP_CONTROL_CRITICAL ) {
354 /* FIXME: is it correct to abort
355 * operation if control fails? */
361 /* nested transaction */
362 rs->sr_err = TXN_BEGIN( bdb->bi_dbenv, ltid, <2,
363 bdb->bi_db_opflags );
365 if( rs->sr_err != 0 ) {
366 Debug( LDAP_DEBUG_TRACE,
367 LDAP_XSTRING(bdb_delete) ": txn_begin(2) failed: "
368 "%s (%d)\n", db_strerror(rs->sr_err), rs->sr_err, 0 );
369 rs->sr_err = LDAP_OTHER;
370 rs->sr_text = "internal error";
374 BDB_LOG_PRINTF( bdb->bi_dbenv, lt2, "slapd Starting delete %s(%d)",
375 e->e_nname.bv_val, e->e_id );
377 /* Can't do it if we have kids */
378 rs->sr_err = bdb_cache_children( op, lt2, e );
379 if( rs->sr_err != DB_NOTFOUND ) {
380 switch( rs->sr_err ) {
381 case DB_LOCK_DEADLOCK:
382 case DB_LOCK_NOTGRANTED:
385 Debug(LDAP_DEBUG_ARGS,
386 "<=- " LDAP_XSTRING(bdb_delete)
388 op->o_req_dn.bv_val, 0, 0);
389 rs->sr_err = LDAP_NOT_ALLOWED_ON_NONLEAF;
390 rs->sr_text = "subordinate objects must be deleted first";
393 Debug(LDAP_DEBUG_ARGS,
394 "<=- " LDAP_XSTRING(bdb_delete)
395 ": has_children failed: %s (%d)\n",
396 db_strerror(rs->sr_err), rs->sr_err, 0 );
397 rs->sr_err = LDAP_OTHER;
398 rs->sr_text = "internal error";
403 /* delete from dn2id */
404 rs->sr_err = bdb_dn2id_delete( op, lt2, eip, e );
405 if ( rs->sr_err != 0 ) {
406 Debug(LDAP_DEBUG_TRACE,
407 "<=- " LDAP_XSTRING(bdb_delete) ": dn2id failed: "
408 "%s (%d)\n", db_strerror(rs->sr_err), rs->sr_err, 0 );
409 switch( rs->sr_err ) {
410 case DB_LOCK_DEADLOCK:
411 case DB_LOCK_NOTGRANTED:
414 rs->sr_text = "DN index delete failed";
415 rs->sr_err = LDAP_OTHER;
419 /* delete indices for old attributes */
420 rs->sr_err = bdb_index_entry_del( op, lt2, e );
421 if ( rs->sr_err != LDAP_SUCCESS ) {
422 Debug(LDAP_DEBUG_TRACE,
423 "<=- " LDAP_XSTRING(bdb_delete) ": index failed: "
424 "%s (%d)\n", db_strerror(rs->sr_err), rs->sr_err, 0 );
425 switch( rs->sr_err ) {
426 case DB_LOCK_DEADLOCK:
427 case DB_LOCK_NOTGRANTED:
430 rs->sr_text = "entry index delete failed";
431 rs->sr_err = LDAP_OTHER;
435 /* fixup delete CSN */
436 if ( !SLAP_SHADOW( op->o_bd )) {
437 struct berval vals[2];
439 assert( !BER_BVISNULL( &op->o_csn ) );
441 BER_BVZERO( &vals[1] );
442 rs->sr_err = bdb_index_values( op, lt2, slap_schema.si_ad_entryCSN,
443 vals, 0, SLAP_INDEX_ADD_OP );
444 if ( rs->sr_err != LDAP_SUCCESS ) {
445 switch( rs->sr_err ) {
446 case DB_LOCK_DEADLOCK:
447 case DB_LOCK_NOTGRANTED:
450 rs->sr_text = "entryCSN index update failed";
451 rs->sr_err = LDAP_OTHER;
456 /* delete from id2entry */
457 rs->sr_err = bdb_id2entry_delete( op->o_bd, lt2, e );
458 if ( rs->sr_err != 0 ) {
459 Debug( LDAP_DEBUG_TRACE,
460 "<=- " LDAP_XSTRING(bdb_delete) ": id2entry failed: "
461 "%s (%d)\n", db_strerror(rs->sr_err), rs->sr_err, 0 );
462 switch( rs->sr_err ) {
463 case DB_LOCK_DEADLOCK:
464 case DB_LOCK_NOTGRANTED:
467 rs->sr_text = "entry delete failed";
468 rs->sr_err = LDAP_OTHER;
472 if ( pdn.bv_len != 0 ) {
473 parent_is_glue = is_entry_glue(p);
474 rs->sr_err = bdb_cache_children( op, lt2, p );
475 if ( rs->sr_err != DB_NOTFOUND ) {
476 switch( rs->sr_err ) {
477 case DB_LOCK_DEADLOCK:
478 case DB_LOCK_NOTGRANTED:
483 Debug(LDAP_DEBUG_ARGS,
484 "<=- " LDAP_XSTRING(bdb_delete)
485 ": has_children failed: %s (%d)\n",
486 db_strerror(rs->sr_err), rs->sr_err, 0 );
487 rs->sr_err = LDAP_OTHER;
488 rs->sr_text = "internal error";
493 bdb_unlocked_cache_return_entry_r(&bdb->bi_cache, p);
497 BDB_LOG_PRINTF( bdb->bi_dbenv, lt2, "slapd Commit1 delete %s(%d)",
498 e->e_nname.bv_val, e->e_id );
500 if ( TXN_COMMIT( lt2, 0 ) != 0 ) {
501 rs->sr_err = LDAP_OTHER;
502 rs->sr_text = "txn_commit(2) failed";
508 #if 0 /* Do we want to reclaim deleted IDs? */
509 ldap_pvt_thread_mutex_lock( &bdb->bi_lastid_mutex );
510 if ( e->e_id == bdb->bi_lastid ) {
511 bdb_last_id( op->o_bd, ltid );
513 ldap_pvt_thread_mutex_unlock( &bdb->bi_lastid_mutex );
517 if ( ( rs->sr_err = TXN_ABORT( ltid ) ) != 0 ) {
518 rs->sr_text = "txn_abort (no-op) failed";
520 rs->sr_err = LDAP_X_NO_OPERATION;
526 BDB_LOG_PRINTF( bdb->bi_dbenv, ltid, "slapd Cache delete %s(%d)",
527 e->e_nname.bv_val, e->e_id );
529 rc = bdb_cache_delete( bdb, e, locker, &lock );
531 case DB_LOCK_DEADLOCK:
532 case DB_LOCK_NOTGRANTED:
536 rs->sr_err = TXN_COMMIT( ltid, 0 );
539 op->o_private = NULL;
541 BDB_LOG_PRINTF( bdb->bi_dbenv, NULL, "slapd Committed delete %s(%d)",
542 e->e_nname.bv_val, e->e_id );
544 if( rs->sr_err != 0 ) {
545 Debug( LDAP_DEBUG_TRACE,
546 LDAP_XSTRING(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 LDAP_XSTRING(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 if ( rs->sr_err == LDAP_SUCCESS && parent_is_glue && parent_is_leaf ) {
565 op->o_delete_glue_parent = 1;
569 bdb_unlocked_cache_return_entry_r(&bdb->bi_cache, p);
573 if ( rs->sr_err == LDAP_SUCCESS ) {
574 /* Free the EntryInfo and the Entry */
575 bdb_cache_delete_cleanup( &bdb->bi_cache, BEI(e) );
577 bdb_unlocked_cache_return_entry_w(&bdb->bi_cache, e);
584 op->o_private = NULL;
586 send_ldap_result( op, rs );
587 slap_graduate_commit_csn( op );
589 if( preread_ctrl != NULL && (*preread_ctrl) != NULL ) {
590 slap_sl_free( (*preread_ctrl)->ldctl_value.bv_val, op->o_tmpmemctx );
591 slap_sl_free( *preread_ctrl, op->o_tmpmemctx );
594 if( rs->sr_err == LDAP_SUCCESS && bdb->bi_txn_cp_kbyte ) {
595 TXN_CHECKPOINT( bdb->bi_dbenv,
596 bdb->bi_txn_cp_kbyte, bdb->bi_txn_cp_min, 0 );