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;
51 LDAPControl **preread_ctrl = NULL;
52 LDAPControl *ctrls[SLAP_MAX_RESPONSE_CONTROLS];
55 int parent_is_glue = 0;
56 int parent_is_leaf = 0;
60 Debug( LDAP_DEBUG_ARGS, "==> bdb_delete: %s\n",
61 op->o_req_dn.bv_val, 0, 0 );
64 retry: /* transaction retry */
66 bdb_unlocked_cache_return_entry_w(&bdb->bi_cache, e);
70 bdb_unlocked_cache_return_entry_r(&bdb->bi_cache, p);
73 Debug( LDAP_DEBUG_TRACE, "==> bdb_delete: retrying...\n",
75 rs->sr_err = TXN_ABORT( ltid );
78 op->o_do_not_cache = opinfo.boi_acl_cache;
79 if( rs->sr_err != 0 ) {
80 rs->sr_err = LDAP_OTHER;
81 rs->sr_text = "internal error";
86 ldap_pvt_thread_yield();
87 bdb_trans_backoff( ++num_retries );
90 /* begin transaction */
91 rs->sr_err = TXN_BEGIN( bdb->bi_dbenv, NULL, <id,
94 if( rs->sr_err != 0 ) {
95 Debug( LDAP_DEBUG_TRACE,
96 "bdb_delete: txn_begin failed: %s (%d)\n",
97 db_strerror(rs->sr_err), rs->sr_err, 0 );
98 rs->sr_err = LDAP_OTHER;
99 rs->sr_text = "internal error";
103 locker = TXN_ID ( ltid );
105 opinfo.boi_bdb = op->o_bd;
106 opinfo.boi_txn = ltid;
107 opinfo.boi_locker = locker;
109 opinfo.boi_acl_cache = op->o_do_not_cache;
110 op->o_private = &opinfo;
112 if ( !be_issuffix( op->o_bd, &op->o_req_ndn ) ) {
113 dnParent( &op->o_req_ndn, &pdn );
117 rs->sr_err = bdb_dn2entry( op, ltid, &op->o_req_ndn, &ei, 1,
120 switch( rs->sr_err ) {
124 case DB_LOCK_DEADLOCK:
125 case DB_LOCK_NOTGRANTED:
128 rs->sr_text = "ldap server busy";
131 rs->sr_err = LDAP_OTHER;
132 rs->sr_text = "internal error";
136 if ( rs->sr_err == 0 ) {
138 eip = ei->bei_parent;
143 /* FIXME : dn2entry() should return non-glue entry */
144 if ( e == NULL || ( !manageDSAit && is_entry_glue( e ))) {
145 BerVarray deref = NULL;
147 Debug( LDAP_DEBUG_ARGS,
148 "<=- bdb_delete: no such object %s\n",
149 op->o_req_dn.bv_val, 0, 0);
151 if ( matched != NULL ) {
152 rs->sr_matched = ch_strdup( matched->e_dn );
153 rs->sr_ref = is_entry_referral( matched )
154 ? get_entry_referrals( op, matched )
156 bdb_unlocked_cache_return_entry_r(&bdb->bi_cache, matched);
160 if ( !LDAP_STAILQ_EMPTY( &op->o_bd->be_syncinfo )) {
162 LDAP_STAILQ_FOREACH( si, &op->o_bd->be_syncinfo, si_next ) {
164 ber_dupbv( &tmpbv, &si->si_provideruri_bv[0] );
165 ber_bvarray_add( &deref, &tmpbv );
168 deref = SLAPD_GLOBAL(default_referral);
170 rs->sr_ref = referral_rewrite( deref, NULL, &op->o_req_dn,
171 LDAP_SCOPE_DEFAULT );
174 rs->sr_err = LDAP_REFERRAL;
175 send_ldap_result( op, rs );
177 if ( rs->sr_ref != SLAPD_GLOBAL(default_referral) ) {
178 ber_bvarray_free( rs->sr_ref );
180 if ( deref != SLAPD_GLOBAL(default_referral) ) {
181 ber_bvarray_free( deref );
183 free( (char *)rs->sr_matched );
185 rs->sr_matched = NULL;
191 rc = bdb_cache_find_id( op, ltid, eip->bei_id, &eip, 0, locker, &plock );
193 case DB_LOCK_DEADLOCK:
194 case DB_LOCK_NOTGRANTED:
200 rs->sr_err = LDAP_OTHER;
201 rs->sr_text = "internal error";
204 if ( eip ) p = eip->bei_e;
206 if ( pdn.bv_len != 0 ) {
207 if( p == NULL || !bvmatch( &pdn, &p->e_nname )) {
208 Debug( LDAP_DEBUG_TRACE,
209 "<=- bdb_delete: parent does not exist\n",
211 rs->sr_err = LDAP_OTHER;
212 rs->sr_text = "could not locate parent of entry";
216 /* check parent for "children" acl */
217 rs->sr_err = access_allowed( op, p,
218 children, NULL, ACL_WRITE, NULL );
221 switch( opinfo.boi_err ) {
222 case DB_LOCK_DEADLOCK:
223 case DB_LOCK_NOTGRANTED:
227 Debug( LDAP_DEBUG_TRACE,
228 "<=- bdb_delete: no write access to parent\n",
230 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
231 rs->sr_text = "no write access to parent";
236 /* no parent, must be root to delete */
237 if( ! be_isroot( op ) ) {
238 if ( be_issuffix( op->o_bd, (struct berval *)&slap_empty_bv )
239 || be_shadow_update( op ) ) {
240 p = (Entry *)&slap_entry_root;
242 /* check parent for "children" acl */
243 rs->sr_err = access_allowed( op, p,
244 children, NULL, ACL_WRITE, NULL );
249 switch( opinfo.boi_err ) {
250 case DB_LOCK_DEADLOCK:
251 case DB_LOCK_NOTGRANTED:
255 Debug( LDAP_DEBUG_TRACE,
256 "<=- bdb_delete: no access "
257 "to parent\n", 0, 0, 0 );
258 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
259 rs->sr_text = "no write access to parent";
264 Debug( LDAP_DEBUG_TRACE,
265 "<=- bdb_delete: no parent "
266 "and not root\n", 0, 0, 0);
267 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
273 if ( get_assert( op ) &&
274 ( test_filter( op, e, get_assertion( op )) != LDAP_COMPARE_TRUE ))
276 rs->sr_err = LDAP_ASSERTION_FAILED;
280 rs->sr_err = access_allowed( op, e,
281 entry, NULL, ACL_WRITE, NULL );
284 switch( opinfo.boi_err ) {
285 case DB_LOCK_DEADLOCK:
286 case DB_LOCK_NOTGRANTED:
290 Debug( LDAP_DEBUG_TRACE,
291 "<=- bdb_delete: no write access to entry\n",
293 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
294 rs->sr_text = "no write access to entry";
298 if ( !manageDSAit && is_entry_referral( e ) ) {
299 /* entry is a referral, don't allow delete */
300 rs->sr_ref = get_entry_referrals( op, e );
302 Debug( LDAP_DEBUG_TRACE,
303 "bdb_delete: entry is referral\n", 0, 0, 0 );
305 rs->sr_err = LDAP_REFERRAL;
306 rs->sr_matched = e->e_name.bv_val;
307 send_ldap_result( op, rs );
309 ber_bvarray_free( rs->sr_ref );
311 rs->sr_matched = NULL;
318 if( op->o_preread ) {
319 if( preread_ctrl == NULL ) {
320 preread_ctrl = &ctrls[num_ctrls++];
321 ctrls[num_ctrls] = NULL;
323 if( slap_read_controls( op, rs, e,
324 &slap_pre_read_bv, preread_ctrl ) )
326 Debug( LDAP_DEBUG_TRACE,
327 "<=- bdb_delete: pre-read failed!\n", 0, 0, 0 );
332 /* nested transaction */
333 rs->sr_err = TXN_BEGIN( bdb->bi_dbenv, ltid, <2,
334 bdb->bi_db_opflags );
336 if( rs->sr_err != 0 ) {
337 Debug( LDAP_DEBUG_TRACE,
338 "bdb_delete: txn_begin(2) failed: %s (%d)\n",
339 db_strerror(rs->sr_err), rs->sr_err, 0 );
340 rs->sr_err = LDAP_OTHER;
341 rs->sr_text = "internal error";
345 /* Can't do it if we have kids */
346 rs->sr_err = bdb_cache_children( op, lt2, e );
347 if( rs->sr_err != DB_NOTFOUND ) {
348 switch( rs->sr_err ) {
349 case DB_LOCK_DEADLOCK:
350 case DB_LOCK_NOTGRANTED:
353 Debug(LDAP_DEBUG_ARGS,
354 "<=- bdb_delete: non-leaf %s\n",
355 op->o_req_dn.bv_val, 0, 0);
356 rs->sr_err = LDAP_NOT_ALLOWED_ON_NONLEAF;
357 rs->sr_text = "subtree delete not supported";
360 Debug(LDAP_DEBUG_ARGS,
361 "<=- bdb_delete: has_children failed: %s (%d)\n",
362 db_strerror(rs->sr_err), rs->sr_err, 0 );
363 rs->sr_err = LDAP_OTHER;
364 rs->sr_text = "internal error";
369 /* delete from dn2id */
370 rs->sr_err = bdb_dn2id_delete( op, lt2, eip, e );
371 if ( rs->sr_err != 0 ) {
372 Debug(LDAP_DEBUG_TRACE,
373 "<=- bdb_delete: dn2id failed: %s (%d)\n",
374 db_strerror(rs->sr_err), rs->sr_err, 0 );
375 switch( rs->sr_err ) {
376 case DB_LOCK_DEADLOCK:
377 case DB_LOCK_NOTGRANTED:
380 rs->sr_text = "DN index delete failed";
381 rs->sr_err = LDAP_OTHER;
385 /* delete from id2entry */
386 rs->sr_err = bdb_id2entry_delete( op->o_bd, lt2, e );
387 if ( rs->sr_err != 0 ) {
388 Debug(LDAP_DEBUG_TRACE,
389 "<=- bdb_delete: id2entry failed: %s (%d)\n",
390 db_strerror(rs->sr_err), rs->sr_err, 0 );
391 switch( rs->sr_err ) {
392 case DB_LOCK_DEADLOCK:
393 case DB_LOCK_NOTGRANTED:
396 rs->sr_text = "entry delete failed";
397 rs->sr_err = LDAP_OTHER;
401 /* delete indices for old attributes */
402 rs->sr_err = bdb_index_entry_del( op, lt2, e );
403 if ( rs->sr_err != LDAP_SUCCESS ) {
404 Debug( LDAP_DEBUG_TRACE,
405 "<=- bdb_delete: index failed: %s (%d)\n",
406 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 = "entry index delete failed";
413 rs->sr_err = LDAP_OTHER;
417 if ( pdn.bv_len != 0 ) {
418 parent_is_glue = is_entry_glue(p);
419 rs->sr_err = bdb_cache_children( op, lt2, p );
420 if ( rs->sr_err != DB_NOTFOUND ) {
421 switch( rs->sr_err ) {
422 case DB_LOCK_DEADLOCK:
423 case DB_LOCK_NOTGRANTED:
428 Debug(LDAP_DEBUG_ARGS,
429 "<=- bdb_delete: has_children failed: %s (%d)\n",
430 db_strerror(rs->sr_err), rs->sr_err, 0 );
431 rs->sr_err = LDAP_OTHER;
432 rs->sr_text = "internal error";
437 bdb_unlocked_cache_return_entry_r(&bdb->bi_cache, p);
441 if ( TXN_COMMIT( lt2, 0 ) != 0 ) {
442 rs->sr_err = LDAP_OTHER;
443 rs->sr_text = "txn_commit(2) failed";
447 #if 0 /* Do we want to reclaim deleted IDs? */
448 ldap_pvt_thread_mutex_lock( &bdb->bi_lastid_mutex );
449 if ( e->e_id == bdb->bi_lastid ) {
450 bdb_last_id( op->o_bd, ltid );
452 ldap_pvt_thread_mutex_unlock( &bdb->bi_lastid_mutex );
455 if ( LDAP_STAILQ_EMPTY( &op->o_bd->be_syncinfo )) {
456 rc = bdb_csn_commit( op, rs, ltid, ei, &suffix_ei,
457 &ctxcsn_e, &ctxcsn_added, locker );
467 if ( ( rs->sr_err = TXN_ABORT( ltid ) ) != 0 ) {
468 rs->sr_text = "txn_abort (no-op) failed";
470 rs->sr_err = LDAP_NO_OPERATION;
474 rc = bdb_cache_delete( &bdb->bi_cache, e, bdb->bi_dbenv,
477 case DB_LOCK_DEADLOCK:
478 case DB_LOCK_NOTGRANTED:
482 if ( LDAP_STAILQ_EMPTY( &op->o_bd->be_syncinfo )) {
483 if ( ctxcsn_added ) {
484 bdb_cache_add( bdb, suffix_ei,
485 ctxcsn_e, (struct berval *)&slap_ldapsync_cn_bv, locker );
489 if ( rs->sr_err == LDAP_SUCCESS && !op->o_no_psearch ) {
491 a = attr_find( e->e_attrs, slap_schema.si_ad_entryCSN );
493 if( (void *) e->e_attrs != (void *) (e+1)) {
494 attr_delete( &e->e_attrs, slap_schema.si_ad_entryCSN );
495 attr_merge_normalize_one( e, slap_schema.si_ad_entryCSN,
496 &op->o_sync_csn, NULL );
498 a->a_vals[0] = op->o_sync_csn;
501 /* Hm, the entryCSN ought to exist. ??? */
503 ldap_pvt_thread_rdwr_wlock( &bdb->bi_pslist_rwlock );
504 LDAP_LIST_FOREACH( ps_list, &bdb->bi_psearch_list, o_ps_link ) {
505 rc = bdb_psearch( op, rs, ps_list, e, LDAP_PSEARCH_BY_DELETE );
507 Debug( LDAP_DEBUG_TRACE,
508 "bdb_delete: persistent search failed (%d,%d)\n",
512 ldap_pvt_thread_rdwr_wunlock( &bdb->bi_pslist_rwlock );
515 rs->sr_err = TXN_COMMIT( ltid, 0 );
518 op->o_private = NULL;
520 if( rs->sr_err != 0 ) {
521 Debug( LDAP_DEBUG_TRACE,
522 "bdb_delete: txn_%s failed: %s (%d)\n",
523 op->o_noop ? "abort (no-op)" : "commit",
524 db_strerror(rs->sr_err), rs->sr_err );
525 rs->sr_err = LDAP_OTHER;
526 rs->sr_text = "commit failed";
531 Debug( LDAP_DEBUG_TRACE,
532 "bdb_delete: deleted%s id=%08lx dn=\"%s\"\n",
533 op->o_noop ? " (no-op)" : "",
535 rs->sr_err = LDAP_SUCCESS;
537 if( num_ctrls ) rs->sr_ctrls = ctrls;
540 send_ldap_result( op, rs );
542 if( rs->sr_err == LDAP_SUCCESS && bdb->bi_txn_cp ) {
543 ldap_pvt_thread_yield();
544 TXN_CHECKPOINT( bdb->bi_dbenv,
545 bdb->bi_txn_cp_kbyte, bdb->bi_txn_cp_min, 0 );
548 if ( rs->sr_err == LDAP_SUCCESS && parent_is_glue && parent_is_leaf ) {
549 op->o_delete_glue_parent = 1;
554 bdb_unlocked_cache_return_entry_r(&bdb->bi_cache, p);
558 if ( rs->sr_err == LDAP_SUCCESS ) {
559 /* Free the EntryInfo and the Entry */
560 bdb_cache_delete_cleanup( &bdb->bi_cache, e );
562 bdb_unlocked_cache_return_entry_w(&bdb->bi_cache, e);
568 op->o_private = NULL;
571 if( preread_ctrl != NULL ) {
572 slap_sl_free( (*preread_ctrl)->ldctl_value.bv_val, &op->o_tmpmemctx );
573 slap_sl_free( *preread_ctrl, &op->o_tmpmemctx );