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;
61 Debug( LDAP_DEBUG_ARGS, "==> bdb_delete: %s\n",
62 op->o_req_dn.bv_val, 0, 0 );
65 retry: /* transaction retry */
67 bdb_unlocked_cache_return_entry_w(&bdb->bi_cache, e);
71 bdb_unlocked_cache_return_entry_r(&bdb->bi_cache, p);
74 Debug( LDAP_DEBUG_TRACE, "==> bdb_delete: retrying...\n",
76 rs->sr_err = TXN_ABORT( ltid );
79 op->o_do_not_cache = opinfo.boi_acl_cache;
80 if( rs->sr_err != 0 ) {
81 rs->sr_err = LDAP_OTHER;
82 rs->sr_text = "internal error";
87 ldap_pvt_thread_yield();
88 bdb_trans_backoff( ++num_retries );
91 /* begin transaction */
92 rs->sr_err = TXN_BEGIN( bdb->bi_dbenv, NULL, <id,
95 if( rs->sr_err != 0 ) {
96 Debug( LDAP_DEBUG_TRACE,
97 "bdb_delete: txn_begin failed: %s (%d)\n",
98 db_strerror(rs->sr_err), rs->sr_err, 0 );
99 rs->sr_err = LDAP_OTHER;
100 rs->sr_text = "internal error";
104 locker = TXN_ID ( ltid );
106 opinfo.boi_bdb = op->o_bd;
107 opinfo.boi_txn = ltid;
108 opinfo.boi_locker = locker;
110 opinfo.boi_acl_cache = op->o_do_not_cache;
111 op->o_private = &opinfo;
113 if ( !be_issuffix( op->o_bd, &op->o_req_ndn ) ) {
114 dnParent( &op->o_req_ndn, &pdn );
118 rs->sr_err = bdb_dn2entry( op, ltid, &op->o_req_ndn, &ei, 1,
121 switch( rs->sr_err ) {
125 case DB_LOCK_DEADLOCK:
126 case DB_LOCK_NOTGRANTED:
129 rs->sr_text = "ldap server busy";
132 rs->sr_err = LDAP_OTHER;
133 rs->sr_text = "internal error";
137 if ( rs->sr_err == 0 ) {
139 eip = ei->bei_parent;
144 /* FIXME : dn2entry() should return non-glue entry */
145 if ( e == NULL || ( !manageDSAit && is_entry_glue( e ))) {
146 BerVarray deref = NULL;
148 Debug( LDAP_DEBUG_ARGS,
149 "<=- bdb_delete: no such object %s\n",
150 op->o_req_dn.bv_val, 0, 0);
152 if ( matched != NULL ) {
153 rs->sr_matched = ch_strdup( matched->e_dn );
154 rs->sr_ref = is_entry_referral( matched )
155 ? get_entry_referrals( op, matched )
157 bdb_unlocked_cache_return_entry_r(&bdb->bi_cache, matched);
161 if ( !LDAP_STAILQ_EMPTY( &op->o_bd->be_syncinfo )) {
163 LDAP_STAILQ_FOREACH( si, &op->o_bd->be_syncinfo, si_next ) {
165 ber_dupbv( &tmpbv, &si->si_provideruri_bv[0] );
166 ber_bvarray_add( &deref, &tmpbv );
169 deref = default_referral;
171 rs->sr_ref = referral_rewrite( deref, NULL, &op->o_req_dn,
172 LDAP_SCOPE_DEFAULT );
175 rs->sr_err = LDAP_REFERRAL;
176 send_ldap_result( op, rs );
178 if ( rs->sr_ref != default_referral ) {
179 ber_bvarray_free( rs->sr_ref );
181 if ( deref != default_referral ) {
182 ber_bvarray_free( deref );
184 free( (char *)rs->sr_matched );
186 rs->sr_matched = NULL;
192 rc = bdb_cache_find_id( op, ltid, eip->bei_id, &eip, 0, locker, &plock );
194 case DB_LOCK_DEADLOCK:
195 case DB_LOCK_NOTGRANTED:
201 rs->sr_err = LDAP_OTHER;
202 rs->sr_text = "internal error";
205 if ( eip ) p = eip->bei_e;
207 if ( pdn.bv_len != 0 ) {
208 if( p == NULL || !bvmatch( &pdn, &p->e_nname )) {
209 Debug( LDAP_DEBUG_TRACE,
210 "<=- bdb_delete: parent does not exist\n",
212 rs->sr_err = LDAP_OTHER;
213 rs->sr_text = "could not locate parent of entry";
217 /* check parent for "children" acl */
218 rs->sr_err = access_allowed( op, p,
219 children, NULL, ACL_WRITE, NULL );
222 switch( opinfo.boi_err ) {
223 case DB_LOCK_DEADLOCK:
224 case DB_LOCK_NOTGRANTED:
228 Debug( LDAP_DEBUG_TRACE,
229 "<=- bdb_delete: no write access to parent\n",
231 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
232 rs->sr_text = "no write access to parent";
237 /* no parent, must be root to delete */
238 if( ! be_isroot( op ) ) {
239 if ( be_issuffix( op->o_bd, (struct berval *)&slap_empty_bv )
240 || be_shadow_update( op ) ) {
241 p = (Entry *)&slap_entry_root;
243 /* check parent for "children" acl */
244 rs->sr_err = access_allowed( op, p,
245 children, NULL, ACL_WRITE, NULL );
250 switch( opinfo.boi_err ) {
251 case DB_LOCK_DEADLOCK:
252 case DB_LOCK_NOTGRANTED:
256 Debug( LDAP_DEBUG_TRACE,
257 "<=- bdb_delete: no access "
258 "to parent\n", 0, 0, 0 );
259 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
260 rs->sr_text = "no write access to parent";
265 Debug( LDAP_DEBUG_TRACE,
266 "<=- bdb_delete: no parent "
267 "and not root\n", 0, 0, 0);
268 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
274 if ( get_assert( op ) &&
275 ( test_filter( op, e, get_assertion( op )) != LDAP_COMPARE_TRUE ))
277 rs->sr_err = LDAP_ASSERTION_FAILED;
281 rs->sr_err = access_allowed( op, e,
282 entry, NULL, ACL_WRITE, NULL );
285 switch( opinfo.boi_err ) {
286 case DB_LOCK_DEADLOCK:
287 case DB_LOCK_NOTGRANTED:
291 Debug( LDAP_DEBUG_TRACE,
292 "<=- bdb_delete: no write access to entry\n",
294 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
295 rs->sr_text = "no write access to entry";
299 if ( !manageDSAit && is_entry_referral( e ) ) {
300 /* entry is a referral, don't allow delete */
301 rs->sr_ref = get_entry_referrals( op, e );
303 Debug( LDAP_DEBUG_TRACE,
304 "bdb_delete: entry is referral\n", 0, 0, 0 );
306 rs->sr_err = LDAP_REFERRAL;
307 rs->sr_matched = e->e_name.bv_val;
308 send_ldap_result( op, rs );
310 ber_bvarray_free( rs->sr_ref );
312 rs->sr_matched = NULL;
319 if( op->o_preread ) {
320 if( preread_ctrl == NULL ) {
321 preread_ctrl = &ctrls[num_ctrls++];
322 ctrls[num_ctrls] = NULL;
324 if( slap_read_controls( op, rs, e,
325 &slap_pre_read_bv, preread_ctrl ) )
327 Debug( LDAP_DEBUG_TRACE,
328 "<=- bdb_delete: pre-read failed!\n", 0, 0, 0 );
333 /* nested transaction */
334 rs->sr_err = TXN_BEGIN( bdb->bi_dbenv, ltid, <2,
335 bdb->bi_db_opflags );
337 if( rs->sr_err != 0 ) {
338 Debug( LDAP_DEBUG_TRACE,
339 "bdb_delete: txn_begin(2) failed: %s (%d)\n",
340 db_strerror(rs->sr_err), rs->sr_err, 0 );
341 rs->sr_err = LDAP_OTHER;
342 rs->sr_text = "internal error";
346 /* Can't do it if we have kids */
347 rs->sr_err = bdb_cache_children( op, lt2, e );
348 if( rs->sr_err != DB_NOTFOUND ) {
349 switch( rs->sr_err ) {
350 case DB_LOCK_DEADLOCK:
351 case DB_LOCK_NOTGRANTED:
354 Debug(LDAP_DEBUG_ARGS,
355 "<=- bdb_delete: non-leaf %s\n",
356 op->o_req_dn.bv_val, 0, 0);
357 rs->sr_err = LDAP_NOT_ALLOWED_ON_NONLEAF;
358 rs->sr_text = "subtree delete not supported";
361 Debug(LDAP_DEBUG_ARGS,
362 "<=- bdb_delete: has_children failed: %s (%d)\n",
363 db_strerror(rs->sr_err), rs->sr_err, 0 );
364 rs->sr_err = LDAP_OTHER;
365 rs->sr_text = "internal error";
370 ldap_pvt_thread_rdwr_wlock( &bdb->bi_pslist_rwlock );
371 LDAP_LIST_FOREACH( ps_list, &bdb->bi_psearch_list, o_ps_link ) {
372 rc = bdb_psearch( op, rs, ps_list, e, LDAP_PSEARCH_BY_PREDELETE );
373 if ( rc == LDAP_BUSY && op->o_ps_send_wait ) {
374 ldap_pvt_thread_rdwr_wunlock( &bdb->bi_pslist_rwlock );
377 Debug( LDAP_DEBUG_TRACE,
378 "bdb_delete: persistent search failed (%d,%d)\n",
382 ldap_pvt_thread_rdwr_wunlock( &bdb->bi_pslist_rwlock );
384 /* delete from dn2id */
385 rs->sr_err = bdb_dn2id_delete( op, lt2, eip, e );
386 if ( rs->sr_err != 0 ) {
387 Debug(LDAP_DEBUG_TRACE,
388 "<=- bdb_delete: dn2id failed: %s (%d)\n",
389 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 = "DN index delete failed";
396 rs->sr_err = LDAP_OTHER;
400 /* delete from id2entry */
401 rs->sr_err = bdb_id2entry_delete( op->o_bd, lt2, e );
402 if ( rs->sr_err != 0 ) {
403 Debug(LDAP_DEBUG_TRACE,
404 "<=- bdb_delete: id2entry failed: %s (%d)\n",
405 db_strerror(rs->sr_err), rs->sr_err, 0 );
406 switch( rs->sr_err ) {
407 case DB_LOCK_DEADLOCK:
408 case DB_LOCK_NOTGRANTED:
411 rs->sr_text = "entry delete failed";
412 rs->sr_err = LDAP_OTHER;
416 /* delete indices for old attributes */
417 rs->sr_err = bdb_index_entry_del( op, lt2, e );
418 if ( rs->sr_err != LDAP_SUCCESS ) {
419 Debug( LDAP_DEBUG_TRACE,
420 "<=- bdb_delete: index failed: %s (%d)\n",
421 db_strerror(rs->sr_err), rs->sr_err, 0 );
422 switch( rs->sr_err ) {
423 case DB_LOCK_DEADLOCK:
424 case DB_LOCK_NOTGRANTED:
427 rs->sr_text = "entry index delete failed";
428 rs->sr_err = LDAP_OTHER;
432 if ( pdn.bv_len != 0 ) {
433 parent_is_glue = is_entry_glue(p);
434 rs->sr_err = bdb_cache_children( op, lt2, p );
435 if ( rs->sr_err != DB_NOTFOUND ) {
436 switch( rs->sr_err ) {
437 case DB_LOCK_DEADLOCK:
438 case DB_LOCK_NOTGRANTED:
443 Debug(LDAP_DEBUG_ARGS,
444 "<=- bdb_delete: has_children failed: %s (%d)\n",
445 db_strerror(rs->sr_err), rs->sr_err, 0 );
446 rs->sr_err = LDAP_OTHER;
447 rs->sr_text = "internal error";
452 bdb_unlocked_cache_return_entry_r(&bdb->bi_cache, p);
456 if ( TXN_COMMIT( lt2, 0 ) != 0 ) {
457 rs->sr_err = LDAP_OTHER;
458 rs->sr_text = "txn_commit(2) failed";
464 #if 0 /* Do we want to reclaim deleted IDs? */
465 ldap_pvt_thread_mutex_lock( &bdb->bi_lastid_mutex );
466 if ( e->e_id == bdb->bi_lastid ) {
467 bdb_last_id( op->o_bd, ltid );
469 ldap_pvt_thread_mutex_unlock( &bdb->bi_lastid_mutex );
472 if ( LDAP_STAILQ_EMPTY( &op->o_bd->be_syncinfo )) {
473 rc = bdb_csn_commit( op, rs, ltid, ei, &suffix_ei,
474 &ctxcsn_e, &ctxcsn_added, locker );
484 if ( ( rs->sr_err = TXN_ABORT( ltid ) ) != 0 ) {
485 rs->sr_text = "txn_abort (no-op) failed";
487 rs->sr_err = LDAP_NO_OPERATION;
491 rc = bdb_cache_delete( &bdb->bi_cache, e, bdb->bi_dbenv,
494 case DB_LOCK_DEADLOCK:
495 case DB_LOCK_NOTGRANTED:
499 if ( LDAP_STAILQ_EMPTY( &op->o_bd->be_syncinfo )) {
500 if ( ctxcsn_added ) {
501 bdb_cache_add( bdb, suffix_ei,
502 ctxcsn_e, (struct berval *)&slap_ldapsync_cn_bv, locker );
506 if ( rs->sr_err == LDAP_SUCCESS && !op->o_no_psearch ) {
508 a = attr_find( e->e_attrs, slap_schema.si_ad_entryCSN );
510 if( (void *) e->e_attrs != (void *) (e+1)) {
511 attr_delete( &e->e_attrs, slap_schema.si_ad_entryCSN );
512 attr_merge_normalize_one( e, slap_schema.si_ad_entryCSN,
513 &op->o_sync_csn, NULL );
515 a->a_vals[0] = op->o_sync_csn;
518 /* Hm, the entryCSN ought to exist. ??? */
520 ldap_pvt_thread_rdwr_wlock( &bdb->bi_pslist_rwlock );
521 LDAP_LIST_FOREACH( ps_list, &bdb->bi_psearch_list, o_ps_link ) {
522 rc = bdb_psearch( op, rs, ps_list, e, LDAP_PSEARCH_BY_DELETE );
524 Debug( LDAP_DEBUG_TRACE,
525 "bdb_delete: persistent search failed (%d,%d)\n",
529 ldap_pvt_thread_rdwr_wunlock( &bdb->bi_pslist_rwlock );
532 rs->sr_err = TXN_COMMIT( ltid, 0 );
535 op->o_private = NULL;
537 if( rs->sr_err != 0 ) {
538 Debug( LDAP_DEBUG_TRACE,
539 "bdb_delete: txn_%s failed: %s (%d)\n",
540 op->o_noop ? "abort (no-op)" : "commit",
541 db_strerror(rs->sr_err), rs->sr_err );
542 rs->sr_err = LDAP_OTHER;
543 rs->sr_text = "commit failed";
548 Debug( LDAP_DEBUG_TRACE,
549 "bdb_delete: deleted%s id=%08lx dn=\"%s\"\n",
550 op->o_noop ? " (no-op)" : "",
551 eid, op->o_req_dn.bv_val );
552 rs->sr_err = LDAP_SUCCESS;
554 if( num_ctrls ) rs->sr_ctrls = ctrls;
557 send_ldap_result( op, rs );
559 if( rs->sr_err == LDAP_SUCCESS && bdb->bi_txn_cp ) {
560 ldap_pvt_thread_yield();
561 TXN_CHECKPOINT( bdb->bi_dbenv,
562 bdb->bi_txn_cp_kbyte, bdb->bi_txn_cp_min, 0 );
565 if ( rs->sr_err == LDAP_SUCCESS && parent_is_glue && parent_is_leaf ) {
566 op->o_delete_glue_parent = 1;
571 bdb_unlocked_cache_return_entry_r(&bdb->bi_cache, p);
575 if ( rs->sr_err == LDAP_SUCCESS ) {
576 /* Free the EntryInfo and the Entry */
577 bdb_cache_delete_cleanup( &bdb->bi_cache, BEI(e) );
579 bdb_unlocked_cache_return_entry_w(&bdb->bi_cache, e);
585 op->o_private = NULL;
588 if( preread_ctrl != NULL ) {
589 slap_sl_free( (*preread_ctrl)->ldctl_value.bv_val, &op->o_tmpmemctx );
590 slap_sl_free( *preread_ctrl, &op->o_tmpmemctx );