1 /* delete.c - bdb backend delete routine */
3 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
5 * Copyright 2000-2014 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 }}};
47 LDAPControl **preread_ctrl = NULL;
48 LDAPControl *ctrls[SLAP_MAX_RESPONSE_CONTROLS];
51 int parent_is_glue = 0;
52 int parent_is_leaf = 0;
54 Debug( LDAP_DEBUG_ARGS, "==> " LDAP_XSTRING(bdb_delete) ": %s\n",
55 op->o_req_dn.bv_val, 0, 0 );
58 if( op->o_txnSpec && txn_preop( op, rs ))
65 if ( BER_BVISNULL( &op->o_csn ) ) {
67 char csnbuf[LDAP_PVT_CSNSTR_BUFSIZE];
70 csn.bv_len = sizeof(csnbuf);
71 slap_get_csn( op, &csn, 1 );
75 retry: /* transaction retry */
77 bdb_unlocked_cache_return_entry_w(&bdb->bi_cache, e);
81 bdb_unlocked_cache_return_entry_r(&bdb->bi_cache, p);
84 Debug( LDAP_DEBUG_TRACE,
85 "==> " LDAP_XSTRING(bdb_delete) ": retrying...\n",
87 rs->sr_err = TXN_ABORT( ltid );
89 LDAP_SLIST_REMOVE( &op->o_extra, &opinfo.boi_oe, OpExtra, oe_next );
90 opinfo.boi_oe.oe_key = NULL;
91 op->o_do_not_cache = opinfo.boi_acl_cache;
92 if( rs->sr_err != 0 ) {
93 rs->sr_err = LDAP_OTHER;
94 rs->sr_text = "internal error";
97 if ( op->o_abandon ) {
98 rs->sr_err = SLAPD_ABANDON;
103 bdb_trans_backoff( ++num_retries );
106 /* begin transaction */
107 rs->sr_err = TXN_BEGIN( bdb->bi_dbenv, NULL, <id,
108 bdb->bi_db_opflags );
109 Debug( LDAP_DEBUG_TRACE, LDAP_XSTRING(bdb_delete) ": txn1 id: %x\n",
110 ltid->id(ltid), 0, 0 );
112 if( rs->sr_err != 0 ) {
113 Debug( LDAP_DEBUG_TRACE,
114 LDAP_XSTRING(bdb_delete) ": txn_begin failed: "
115 "%s (%d)\n", db_strerror(rs->sr_err), rs->sr_err, 0 );
116 rs->sr_err = LDAP_OTHER;
117 rs->sr_text = "internal error";
121 opinfo.boi_oe.oe_key = bdb;
122 opinfo.boi_txn = ltid;
124 opinfo.boi_acl_cache = op->o_do_not_cache;
125 LDAP_SLIST_INSERT_HEAD( &op->o_extra, &opinfo.boi_oe, oe_next );
127 if ( !be_issuffix( op->o_bd, &op->o_req_ndn ) ) {
128 dnParent( &op->o_req_ndn, &pdn );
132 rs->sr_err = bdb_dn2entry( op, ltid, &op->o_req_ndn, &ei, 1,
135 switch( rs->sr_err ) {
139 case DB_LOCK_DEADLOCK:
140 case DB_LOCK_NOTGRANTED:
143 rs->sr_text = "ldap server busy";
146 rs->sr_err = LDAP_OTHER;
147 rs->sr_text = "internal error";
151 if ( rs->sr_err == 0 ) {
153 eip = ei->bei_parent;
158 /* FIXME : dn2entry() should return non-glue entry */
159 if ( e == NULL || ( !manageDSAit && is_entry_glue( e ))) {
160 Debug( LDAP_DEBUG_ARGS,
161 "<=- " LDAP_XSTRING(bdb_delete) ": no such object %s\n",
162 op->o_req_dn.bv_val, 0, 0);
164 if ( matched != NULL ) {
165 rs->sr_matched = ch_strdup( matched->e_dn );
166 rs->sr_ref = is_entry_referral( matched )
167 ? get_entry_referrals( op, matched )
169 bdb_unlocked_cache_return_entry_r(&bdb->bi_cache, matched);
173 rs->sr_ref = referral_rewrite( default_referral, NULL,
174 &op->o_req_dn, LDAP_SCOPE_DEFAULT );
177 rs->sr_err = LDAP_REFERRAL;
178 rs->sr_flags = REP_MATCHED_MUSTBEFREED | REP_REF_MUSTBEFREED;
182 rc = bdb_cache_find_id( op, ltid, eip->bei_id, &eip, 0, &plock );
184 case DB_LOCK_DEADLOCK:
185 case DB_LOCK_NOTGRANTED:
191 rs->sr_err = LDAP_OTHER;
192 rs->sr_text = "internal error";
195 if ( eip ) p = eip->bei_e;
197 if ( pdn.bv_len != 0 ) {
198 if( p == NULL || !bvmatch( &pdn, &p->e_nname )) {
199 Debug( LDAP_DEBUG_TRACE,
200 "<=- " LDAP_XSTRING(bdb_delete) ": parent "
201 "does not exist\n", 0, 0, 0 );
202 rs->sr_err = LDAP_OTHER;
203 rs->sr_text = "could not locate parent of entry";
207 /* check parent for "children" acl */
208 rs->sr_err = access_allowed( op, p,
209 children, NULL, ACL_WDEL, NULL );
212 switch( opinfo.boi_err ) {
213 case DB_LOCK_DEADLOCK:
214 case DB_LOCK_NOTGRANTED:
218 Debug( LDAP_DEBUG_TRACE,
219 "<=- " LDAP_XSTRING(bdb_delete) ": no write "
220 "access to parent\n", 0, 0, 0 );
221 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
222 rs->sr_text = "no write access to parent";
227 /* no parent, must be root to delete */
228 if( ! be_isroot( op ) ) {
229 if ( be_issuffix( op->o_bd, (struct berval *)&slap_empty_bv )
230 || be_shadow_update( op ) ) {
231 p = (Entry *)&slap_entry_root;
233 /* check parent for "children" acl */
234 rs->sr_err = access_allowed( op, p,
235 children, NULL, ACL_WDEL, NULL );
240 switch( opinfo.boi_err ) {
241 case DB_LOCK_DEADLOCK:
242 case DB_LOCK_NOTGRANTED:
246 Debug( LDAP_DEBUG_TRACE,
247 "<=- " LDAP_XSTRING(bdb_delete)
248 ": no access to parent\n",
250 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
251 rs->sr_text = "no write access to parent";
256 Debug( LDAP_DEBUG_TRACE,
257 "<=- " LDAP_XSTRING(bdb_delete)
258 ": no parent and not root\n", 0, 0, 0 );
259 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
265 if ( get_assert( op ) &&
266 ( test_filter( op, e, get_assertion( op )) != LDAP_COMPARE_TRUE ))
268 rs->sr_err = LDAP_ASSERTION_FAILED;
272 rs->sr_err = access_allowed( op, e,
273 entry, NULL, ACL_WDEL, NULL );
276 switch( opinfo.boi_err ) {
277 case DB_LOCK_DEADLOCK:
278 case DB_LOCK_NOTGRANTED:
282 Debug( LDAP_DEBUG_TRACE,
283 "<=- " LDAP_XSTRING(bdb_delete) ": no write access "
284 "to entry\n", 0, 0, 0 );
285 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
286 rs->sr_text = "no write access to entry";
290 if ( !manageDSAit && is_entry_referral( e ) ) {
291 /* entry is a referral, don't allow delete */
292 rs->sr_ref = get_entry_referrals( op, e );
294 Debug( LDAP_DEBUG_TRACE,
295 LDAP_XSTRING(bdb_delete) ": entry is referral\n",
298 rs->sr_err = LDAP_REFERRAL;
299 rs->sr_matched = ch_strdup( e->e_name.bv_val );
300 rs->sr_flags = REP_MATCHED_MUSTBEFREED | REP_REF_MUSTBEFREED;
305 if( op->o_preread ) {
306 if( preread_ctrl == NULL ) {
307 preread_ctrl = &ctrls[num_ctrls++];
308 ctrls[num_ctrls] = NULL;
310 if( slap_read_controls( op, rs, e,
311 &slap_pre_read_bv, preread_ctrl ) )
313 Debug( LDAP_DEBUG_TRACE,
314 "<=- " LDAP_XSTRING(bdb_delete) ": pre-read "
315 "failed!\n", 0, 0, 0 );
316 if ( op->o_preread & SLAP_CONTROL_CRITICAL ) {
317 /* FIXME: is it correct to abort
318 * operation if control fails? */
324 /* nested transaction */
325 rs->sr_err = TXN_BEGIN( bdb->bi_dbenv, ltid, <2,
326 bdb->bi_db_opflags );
328 if( rs->sr_err != 0 ) {
329 Debug( LDAP_DEBUG_TRACE,
330 LDAP_XSTRING(bdb_delete) ": txn_begin(2) failed: "
331 "%s (%d)\n", db_strerror(rs->sr_err), rs->sr_err, 0 );
332 rs->sr_err = LDAP_OTHER;
333 rs->sr_text = "internal error";
336 Debug( LDAP_DEBUG_TRACE, LDAP_XSTRING(bdb_delete) ": txn2 id: %x\n",
337 lt2->id(lt2), 0, 0 );
339 BDB_LOG_PRINTF( bdb->bi_dbenv, lt2, "slapd Starting delete %s(%d)",
340 e->e_nname.bv_val, e->e_id );
342 /* Can't do it if we have kids */
343 rs->sr_err = bdb_cache_children( op, lt2, e );
344 if( rs->sr_err != DB_NOTFOUND ) {
345 switch( rs->sr_err ) {
346 case DB_LOCK_DEADLOCK:
347 case DB_LOCK_NOTGRANTED:
350 Debug(LDAP_DEBUG_ARGS,
351 "<=- " LDAP_XSTRING(bdb_delete)
353 op->o_req_dn.bv_val, 0, 0);
354 rs->sr_err = LDAP_NOT_ALLOWED_ON_NONLEAF;
355 rs->sr_text = "subordinate objects must be deleted first";
358 Debug(LDAP_DEBUG_ARGS,
359 "<=- " LDAP_XSTRING(bdb_delete)
360 ": has_children failed: %s (%d)\n",
361 db_strerror(rs->sr_err), rs->sr_err, 0 );
362 rs->sr_err = LDAP_OTHER;
363 rs->sr_text = "internal error";
368 /* delete from dn2id */
369 rs->sr_err = bdb_dn2id_delete( op, lt2, eip, e );
370 if ( rs->sr_err != 0 ) {
371 Debug(LDAP_DEBUG_TRACE,
372 "<=- " LDAP_XSTRING(bdb_delete) ": dn2id failed: "
373 "%s (%d)\n", db_strerror(rs->sr_err), rs->sr_err, 0 );
374 switch( rs->sr_err ) {
375 case DB_LOCK_DEADLOCK:
376 case DB_LOCK_NOTGRANTED:
379 rs->sr_text = "DN index delete failed";
380 rs->sr_err = LDAP_OTHER;
384 /* delete indices for old attributes */
385 rs->sr_err = bdb_index_entry_del( op, lt2, e );
386 if ( rs->sr_err != LDAP_SUCCESS ) {
387 Debug(LDAP_DEBUG_TRACE,
388 "<=- " LDAP_XSTRING(bdb_delete) ": index failed: "
389 "%s (%d)\n", db_strerror(rs->sr_err), rs->sr_err, 0 );
390 switch( rs->sr_err ) {
391 case DB_LOCK_DEADLOCK:
392 case DB_LOCK_NOTGRANTED:
395 rs->sr_text = "entry index delete failed";
396 rs->sr_err = LDAP_OTHER;
400 /* fixup delete CSN */
401 if ( !SLAP_SHADOW( op->o_bd )) {
402 struct berval vals[2];
404 assert( !BER_BVISNULL( &op->o_csn ) );
406 BER_BVZERO( &vals[1] );
407 rs->sr_err = bdb_index_values( op, lt2, slap_schema.si_ad_entryCSN,
408 vals, 0, SLAP_INDEX_ADD_OP );
409 if ( rs->sr_err != LDAP_SUCCESS ) {
410 switch( rs->sr_err ) {
411 case DB_LOCK_DEADLOCK:
412 case DB_LOCK_NOTGRANTED:
415 rs->sr_text = "entryCSN index update failed";
416 rs->sr_err = LDAP_OTHER;
421 /* delete from id2entry */
422 rs->sr_err = bdb_id2entry_delete( op->o_bd, lt2, e );
423 if ( rs->sr_err != 0 ) {
424 Debug( LDAP_DEBUG_TRACE,
425 "<=- " LDAP_XSTRING(bdb_delete) ": id2entry failed: "
426 "%s (%d)\n", 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 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 "<=- " LDAP_XSTRING(bdb_delete)
450 ": has_children failed: %s (%d)\n",
451 db_strerror(rs->sr_err), rs->sr_err, 0 );
452 rs->sr_err = LDAP_OTHER;
453 rs->sr_text = "internal error";
458 bdb_unlocked_cache_return_entry_r(&bdb->bi_cache, p);
462 BDB_LOG_PRINTF( bdb->bi_dbenv, lt2, "slapd Commit1 delete %s(%d)",
463 e->e_nname.bv_val, e->e_id );
465 if ( TXN_COMMIT( lt2, 0 ) != 0 ) {
466 rs->sr_err = LDAP_OTHER;
467 rs->sr_text = "txn_commit(2) failed";
473 #if 0 /* Do we want to reclaim deleted IDs? */
474 ldap_pvt_thread_mutex_lock( &bdb->bi_lastid_mutex );
475 if ( e->e_id == bdb->bi_lastid ) {
476 bdb_last_id( op->o_bd, ltid );
478 ldap_pvt_thread_mutex_unlock( &bdb->bi_lastid_mutex );
482 if ( ( rs->sr_err = TXN_ABORT( ltid ) ) != 0 ) {
483 rs->sr_text = "txn_abort (no-op) failed";
485 rs->sr_err = LDAP_X_NO_OPERATION;
491 BDB_LOG_PRINTF( bdb->bi_dbenv, ltid, "slapd Cache delete %s(%d)",
492 e->e_nname.bv_val, e->e_id );
494 rc = bdb_cache_delete( bdb, e, ltid, &lock );
496 case DB_LOCK_DEADLOCK:
497 case DB_LOCK_NOTGRANTED:
501 rs->sr_err = TXN_COMMIT( ltid, 0 );
504 LDAP_SLIST_REMOVE( &op->o_extra, &opinfo.boi_oe, OpExtra, oe_next );
505 opinfo.boi_oe.oe_key = NULL;
507 BDB_LOG_PRINTF( bdb->bi_dbenv, NULL, "slapd Committed delete %s(%d)",
508 e->e_nname.bv_val, e->e_id );
510 if( rs->sr_err != 0 ) {
511 Debug( LDAP_DEBUG_TRACE,
512 LDAP_XSTRING(bdb_delete) ": txn_%s failed: %s (%d)\n",
513 op->o_noop ? "abort (no-op)" : "commit",
514 db_strerror(rs->sr_err), rs->sr_err );
515 rs->sr_err = LDAP_OTHER;
516 rs->sr_text = "commit failed";
521 Debug( LDAP_DEBUG_TRACE,
522 LDAP_XSTRING(bdb_delete) ": deleted%s id=%08lx dn=\"%s\"\n",
523 op->o_noop ? " (no-op)" : "",
524 eid, op->o_req_dn.bv_val );
525 rs->sr_err = LDAP_SUCCESS;
527 if( num_ctrls ) rs->sr_ctrls = ctrls;
530 if ( rs->sr_err == LDAP_SUCCESS && parent_is_glue && parent_is_leaf ) {
531 op->o_delete_glue_parent = 1;
535 bdb_unlocked_cache_return_entry_r(&bdb->bi_cache, p);
539 if ( rs->sr_err == LDAP_SUCCESS ) {
540 /* Free the EntryInfo and the Entry */
541 bdb_cache_entryinfo_lock( BEI(e) );
542 bdb_cache_delete_cleanup( &bdb->bi_cache, BEI(e) );
544 bdb_unlocked_cache_return_entry_w(&bdb->bi_cache, e);
551 if ( opinfo.boi_oe.oe_key ) {
552 LDAP_SLIST_REMOVE( &op->o_extra, &opinfo.boi_oe, OpExtra, oe_next );
555 send_ldap_result( op, rs );
556 slap_graduate_commit_csn( op );
558 if( preread_ctrl != NULL && (*preread_ctrl) != NULL ) {
559 slap_sl_free( (*preread_ctrl)->ldctl_value.bv_val, op->o_tmpmemctx );
560 slap_sl_free( *preread_ctrl, op->o_tmpmemctx );
563 if( rs->sr_err == LDAP_SUCCESS && bdb->bi_txn_cp_kbyte ) {
564 TXN_CHECKPOINT( bdb->bi_dbenv,
565 bdb->bi_txn_cp_kbyte, bdb->bi_txn_cp_min, 0 );