1 /* delete.c - bdb backend delete routine */
3 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
5 * Copyright 2000-2006 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};
48 LDAPControl **preread_ctrl = NULL;
49 LDAPControl *ctrls[SLAP_MAX_RESPONSE_CONTROLS];
52 int parent_is_glue = 0;
53 int parent_is_leaf = 0;
57 Debug( LDAP_DEBUG_ARGS, "==> " LDAP_XSTRING(bdb_delete) ": %s\n",
58 op->o_req_dn.bv_val, 0, 0 );
61 if ( !SLAP_SHADOW( op->o_bd )) {
63 char csnbuf[LDAP_LUTIL_CSNSTR_BUFSIZE];
66 csn.bv_len = sizeof(csnbuf);
67 slap_get_csn( op, &csn, 1 );
71 retry: /* transaction retry */
73 bdb_unlocked_cache_return_entry_w(&bdb->bi_cache, e);
77 bdb_unlocked_cache_return_entry_r(&bdb->bi_cache, p);
80 Debug( LDAP_DEBUG_TRACE,
81 "==> " LDAP_XSTRING(bdb_delete) ": retrying...\n",
83 rs->sr_err = TXN_ABORT( ltid );
86 op->o_do_not_cache = opinfo.boi_acl_cache;
87 if( rs->sr_err != 0 ) {
88 rs->sr_err = LDAP_OTHER;
89 rs->sr_text = "internal error";
92 if ( op->o_abandon ) {
93 rs->sr_err = SLAPD_ABANDON;
98 bdb_trans_backoff( ++num_retries );
101 /* begin transaction */
102 rs->sr_err = TXN_BEGIN( bdb->bi_dbenv, NULL, <id,
103 bdb->bi_db_opflags );
105 if( rs->sr_err != 0 ) {
106 Debug( LDAP_DEBUG_TRACE,
107 LDAP_XSTRING(bdb_delete) ": txn_begin failed: "
108 "%s (%d)\n", db_strerror(rs->sr_err), rs->sr_err, 0 );
109 rs->sr_err = LDAP_OTHER;
110 rs->sr_text = "internal error";
114 locker = TXN_ID ( ltid );
116 opinfo.boi_bdb = op->o_bd;
117 opinfo.boi_txn = ltid;
118 opinfo.boi_locker = locker;
120 opinfo.boi_acl_cache = op->o_do_not_cache;
121 op->o_private = &opinfo;
123 if ( !be_issuffix( op->o_bd, &op->o_req_ndn ) ) {
124 dnParent( &op->o_req_ndn, &pdn );
128 rs->sr_err = bdb_dn2entry( op, ltid, &op->o_req_ndn, &ei, 1,
131 switch( rs->sr_err ) {
135 case DB_LOCK_DEADLOCK:
136 case DB_LOCK_NOTGRANTED:
139 rs->sr_text = "ldap server busy";
142 rs->sr_err = LDAP_OTHER;
143 rs->sr_text = "internal error";
147 if ( rs->sr_err == 0 ) {
149 eip = ei->bei_parent;
154 /* FIXME : dn2entry() should return non-glue entry */
155 if ( e == NULL || ( !manageDSAit && is_entry_glue( e ))) {
156 Debug( LDAP_DEBUG_ARGS,
157 "<=- " LDAP_XSTRING(bdb_delete) ": no such object %s\n",
158 op->o_req_dn.bv_val, 0, 0);
160 if ( matched != NULL ) {
161 rs->sr_matched = ch_strdup( matched->e_dn );
162 rs->sr_ref = is_entry_referral( matched )
163 ? get_entry_referrals( op, matched )
165 bdb_unlocked_cache_return_entry_r(&bdb->bi_cache, matched);
169 rs->sr_ref = referral_rewrite( default_referral, NULL,
170 &op->o_req_dn, LDAP_SCOPE_DEFAULT );
173 rs->sr_err = LDAP_REFERRAL;
174 rs->sr_flags = REP_MATCHED_MUSTBEFREED | REP_REF_MUSTBEFREED;
178 rc = bdb_cache_find_id( op, ltid, eip->bei_id, &eip, 0, locker, &plock );
180 case DB_LOCK_DEADLOCK:
181 case DB_LOCK_NOTGRANTED:
187 rs->sr_err = LDAP_OTHER;
188 rs->sr_text = "internal error";
191 if ( eip ) p = eip->bei_e;
193 if ( pdn.bv_len != 0 ) {
194 if( p == NULL || !bvmatch( &pdn, &p->e_nname )) {
195 Debug( LDAP_DEBUG_TRACE,
196 "<=- " LDAP_XSTRING(bdb_delete) ": parent "
197 "does not exist\n", 0, 0, 0 );
198 rs->sr_err = LDAP_OTHER;
199 rs->sr_text = "could not locate parent of entry";
203 /* check parent for "children" acl */
204 rs->sr_err = access_allowed( op, p,
205 children, NULL, ACL_WDEL, NULL );
208 switch( opinfo.boi_err ) {
209 case DB_LOCK_DEADLOCK:
210 case DB_LOCK_NOTGRANTED:
214 Debug( LDAP_DEBUG_TRACE,
215 "<=- " LDAP_XSTRING(bdb_delete) ": no write "
216 "access to parent\n", 0, 0, 0 );
217 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
218 rs->sr_text = "no write access to parent";
223 /* no parent, must be root to delete */
224 if( ! be_isroot( op ) ) {
225 if ( be_issuffix( op->o_bd, (struct berval *)&slap_empty_bv )
226 || be_shadow_update( op ) ) {
227 p = (Entry *)&slap_entry_root;
229 /* check parent for "children" acl */
230 rs->sr_err = access_allowed( op, p,
231 children, NULL, ACL_WDEL, NULL );
236 switch( opinfo.boi_err ) {
237 case DB_LOCK_DEADLOCK:
238 case DB_LOCK_NOTGRANTED:
242 Debug( LDAP_DEBUG_TRACE,
243 "<=- " LDAP_XSTRING(bdb_delete)
244 ": no access to parent\n",
246 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
247 rs->sr_text = "no write access to parent";
252 Debug( LDAP_DEBUG_TRACE,
253 "<=- " LDAP_XSTRING(bdb_delete)
254 ": no parent and not root\n", 0, 0, 0 );
255 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
261 if ( get_assert( op ) &&
262 ( test_filter( op, e, get_assertion( op )) != LDAP_COMPARE_TRUE ))
264 rs->sr_err = LDAP_ASSERTION_FAILED;
268 rs->sr_err = access_allowed( op, e,
269 entry, NULL, ACL_WDEL, NULL );
272 switch( opinfo.boi_err ) {
273 case DB_LOCK_DEADLOCK:
274 case DB_LOCK_NOTGRANTED:
278 Debug( LDAP_DEBUG_TRACE,
279 "<=- " LDAP_XSTRING(bdb_delete) ": no write access "
280 "to entry\n", 0, 0, 0 );
281 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
282 rs->sr_text = "no write access to entry";
286 if ( !manageDSAit && is_entry_referral( e ) ) {
287 /* entry is a referral, don't allow delete */
288 rs->sr_ref = get_entry_referrals( op, e );
290 Debug( LDAP_DEBUG_TRACE,
291 LDAP_XSTRING(bdb_delete) ": entry is referral\n",
294 rs->sr_err = LDAP_REFERRAL;
295 rs->sr_matched = ch_strdup( e->e_name.bv_val );
296 rs->sr_flags = REP_MATCHED_MUSTBEFREED | REP_REF_MUSTBEFREED;
301 if( op->o_preread ) {
302 if( preread_ctrl == NULL ) {
303 preread_ctrl = &ctrls[num_ctrls++];
304 ctrls[num_ctrls] = NULL;
306 if( slap_read_controls( op, rs, e,
307 &slap_pre_read_bv, preread_ctrl ) )
309 Debug( LDAP_DEBUG_TRACE,
310 "<=- " LDAP_XSTRING(bdb_delete) ": pre-read "
311 "failed!\n", 0, 0, 0 );
316 /* nested transaction */
317 rs->sr_err = TXN_BEGIN( bdb->bi_dbenv, ltid, <2,
318 bdb->bi_db_opflags );
320 if( rs->sr_err != 0 ) {
321 Debug( LDAP_DEBUG_TRACE,
322 LDAP_XSTRING(bdb_delete) ": txn_begin(2) failed: "
323 "%s (%d)\n", db_strerror(rs->sr_err), rs->sr_err, 0 );
324 rs->sr_err = LDAP_OTHER;
325 rs->sr_text = "internal error";
329 /* Can't do it if we have kids */
330 rs->sr_err = bdb_cache_children( op, lt2, e );
331 if( rs->sr_err != DB_NOTFOUND ) {
332 switch( rs->sr_err ) {
333 case DB_LOCK_DEADLOCK:
334 case DB_LOCK_NOTGRANTED:
337 Debug(LDAP_DEBUG_ARGS,
338 "<=- " LDAP_XSTRING(bdb_delete)
340 op->o_req_dn.bv_val, 0, 0);
341 rs->sr_err = LDAP_NOT_ALLOWED_ON_NONLEAF;
342 rs->sr_text = "subordinate objects must be deleted first";
345 Debug(LDAP_DEBUG_ARGS,
346 "<=- " LDAP_XSTRING(bdb_delete)
347 ": has_children failed: %s (%d)\n",
348 db_strerror(rs->sr_err), rs->sr_err, 0 );
349 rs->sr_err = LDAP_OTHER;
350 rs->sr_text = "internal error";
355 /* delete from dn2id */
356 rs->sr_err = bdb_dn2id_delete( op, lt2, eip, e );
357 if ( rs->sr_err != 0 ) {
358 Debug(LDAP_DEBUG_TRACE,
359 "<=- " LDAP_XSTRING(bdb_delete) ": dn2id failed: "
360 "%s (%d)\n", db_strerror(rs->sr_err), rs->sr_err, 0 );
361 switch( rs->sr_err ) {
362 case DB_LOCK_DEADLOCK:
363 case DB_LOCK_NOTGRANTED:
366 rs->sr_text = "DN index delete failed";
367 rs->sr_err = LDAP_OTHER;
371 /* delete indices for old attributes */
372 rs->sr_err = bdb_index_entry_del( op, lt2, e );
373 if ( rs->sr_err != LDAP_SUCCESS ) {
374 Debug(LDAP_DEBUG_TRACE,
375 "<=- " LDAP_XSTRING(bdb_delete) ": index failed: "
376 "%s (%d)\n", db_strerror(rs->sr_err), rs->sr_err, 0 );
377 switch( rs->sr_err ) {
378 case DB_LOCK_DEADLOCK:
379 case DB_LOCK_NOTGRANTED:
382 rs->sr_text = "entry index delete failed";
383 rs->sr_err = LDAP_OTHER;
387 /* fixup delete CSN */
388 if ( !SLAP_SHADOW( op->o_bd )) {
389 struct berval vals[2];
391 assert( !BER_BVISNULL( &op->o_csn ) );
393 BER_BVZERO( &vals[1] );
394 rs->sr_err = bdb_index_values( op, lt2, slap_schema.si_ad_entryCSN,
395 vals, 0, SLAP_INDEX_ADD_OP );
396 if ( rs->sr_err != LDAP_SUCCESS ) {
397 switch( rs->sr_err ) {
398 case DB_LOCK_DEADLOCK:
399 case DB_LOCK_NOTGRANTED:
402 rs->sr_text = "entryCSN index update failed";
403 rs->sr_err = LDAP_OTHER;
408 /* delete from id2entry */
409 rs->sr_err = bdb_id2entry_delete( op->o_bd, lt2, e );
410 if ( rs->sr_err != 0 ) {
411 Debug( LDAP_DEBUG_TRACE,
412 "<=- " LDAP_XSTRING(bdb_delete) ": id2entry failed: "
413 "%s (%d)\n", db_strerror(rs->sr_err), rs->sr_err, 0 );
414 switch( rs->sr_err ) {
415 case DB_LOCK_DEADLOCK:
416 case DB_LOCK_NOTGRANTED:
419 rs->sr_text = "entry delete failed";
420 rs->sr_err = LDAP_OTHER;
424 if ( pdn.bv_len != 0 ) {
425 parent_is_glue = is_entry_glue(p);
426 rs->sr_err = bdb_cache_children( op, lt2, p );
427 if ( rs->sr_err != DB_NOTFOUND ) {
428 switch( rs->sr_err ) {
429 case DB_LOCK_DEADLOCK:
430 case DB_LOCK_NOTGRANTED:
435 Debug(LDAP_DEBUG_ARGS,
436 "<=- " LDAP_XSTRING(bdb_delete)
437 ": has_children failed: %s (%d)\n",
438 db_strerror(rs->sr_err), rs->sr_err, 0 );
439 rs->sr_err = LDAP_OTHER;
440 rs->sr_text = "internal error";
445 bdb_unlocked_cache_return_entry_r(&bdb->bi_cache, p);
449 if ( TXN_COMMIT( lt2, 0 ) != 0 ) {
450 rs->sr_err = LDAP_OTHER;
451 rs->sr_text = "txn_commit(2) failed";
457 #if 0 /* Do we want to reclaim deleted IDs? */
458 ldap_pvt_thread_mutex_lock( &bdb->bi_lastid_mutex );
459 if ( e->e_id == bdb->bi_lastid ) {
460 bdb_last_id( op->o_bd, ltid );
462 ldap_pvt_thread_mutex_unlock( &bdb->bi_lastid_mutex );
466 if ( ( rs->sr_err = TXN_ABORT( ltid ) ) != 0 ) {
467 rs->sr_text = "txn_abort (no-op) failed";
469 rs->sr_err = LDAP_X_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 rs->sr_err = TXN_COMMIT( ltid, 0 );
485 op->o_private = NULL;
487 if( rs->sr_err != 0 ) {
488 Debug( LDAP_DEBUG_TRACE,
489 LDAP_XSTRING(bdb_delete) ": txn_%s failed: %s (%d)\n",
490 op->o_noop ? "abort (no-op)" : "commit",
491 db_strerror(rs->sr_err), rs->sr_err );
492 rs->sr_err = LDAP_OTHER;
493 rs->sr_text = "commit failed";
498 Debug( LDAP_DEBUG_TRACE,
499 LDAP_XSTRING(bdb_delete) ": deleted%s id=%08lx dn=\"%s\"\n",
500 op->o_noop ? " (no-op)" : "",
501 eid, op->o_req_dn.bv_val );
502 rs->sr_err = LDAP_SUCCESS;
504 if( num_ctrls ) rs->sr_ctrls = ctrls;
507 if ( rs->sr_err == LDAP_SUCCESS && parent_is_glue && parent_is_leaf ) {
508 op->o_delete_glue_parent = 1;
512 bdb_unlocked_cache_return_entry_r(&bdb->bi_cache, p);
516 if ( rs->sr_err == LDAP_SUCCESS ) {
517 /* Free the EntryInfo and the Entry */
518 bdb_cache_delete_cleanup( &bdb->bi_cache, BEI(e) );
520 bdb_unlocked_cache_return_entry_w(&bdb->bi_cache, e);
527 op->o_private = NULL;
529 send_ldap_result( op, rs );
530 if ( !SLAP_SHADOW( op->o_bd ))
531 slap_graduate_commit_csn( op );
533 if( preread_ctrl != NULL ) {
534 slap_sl_free( (*preread_ctrl)->ldctl_value.bv_val, op->o_tmpmemctx );
535 slap_sl_free( *preread_ctrl, op->o_tmpmemctx );
538 if( rs->sr_err == LDAP_SUCCESS && bdb->bi_txn_cp ) {
539 TXN_CHECKPOINT( bdb->bi_dbenv,
540 bdb->bi_txn_cp_kbyte, bdb->bi_txn_cp_min, 0 );