1 /* delete.c - bdb backend delete routine */
3 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
5 * Copyright 2000-2005 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>
25 bdb_delete( Operation *op, SlapReply *rs )
27 struct bdb_info *bdb = (struct bdb_info *) op->o_bd->be_private;
28 Entry *matched = NULL;
29 struct berval pdn = {0, NULL};
32 EntryInfo *ei = NULL, *eip = NULL;
33 int manageDSAit = get_manageDSAit( op );
34 AttributeDescription *children = slap_schema.si_ad_children;
35 AttributeDescription *entry = slap_schema.si_ad_entry;
36 DB_TXN *ltid = NULL, *lt2;
37 struct bdb_op_info opinfo = {0};
51 LDAPControl **preread_ctrl = NULL;
52 LDAPControl *ctrls[SLAP_MAX_RESPONSE_CONTROLS];
55 int parent_is_glue = 0;
56 int parent_is_leaf = 0;
58 struct berval ctxcsn_ndn = BER_BVNULL;
62 Debug( LDAP_DEBUG_ARGS, "==> " LDAP_XSTRING(bdb_delete) ": %s\n",
63 op->o_req_dn.bv_val, 0, 0 );
65 build_new_dn( &ctxcsn_ndn, &op->o_bd->be_nsuffix[0],
66 (struct berval *)&slap_ldapsync_cn_bv, op->o_tmpmemctx );
69 retry: /* transaction retry */
71 bdb_unlocked_cache_return_entry_w(&bdb->bi_cache, e);
75 bdb_unlocked_cache_return_entry_r(&bdb->bi_cache, p);
78 Debug( LDAP_DEBUG_TRACE,
79 "==> " LDAP_XSTRING(bdb_delete) ": retrying...\n",
81 rs->sr_err = TXN_ABORT( ltid );
84 op->o_do_not_cache = opinfo.boi_acl_cache;
85 if( rs->sr_err != 0 ) {
86 rs->sr_err = LDAP_OTHER;
87 rs->sr_text = "internal error";
92 ldap_pvt_thread_yield();
93 bdb_trans_backoff( ++num_retries );
96 /* begin transaction */
97 rs->sr_err = TXN_BEGIN( bdb->bi_dbenv, NULL, <id,
100 if( rs->sr_err != 0 ) {
101 Debug( LDAP_DEBUG_TRACE,
102 LDAP_XSTRING(bdb_delete) ": txn_begin failed: "
103 "%s (%d)\n", db_strerror(rs->sr_err), rs->sr_err, 0 );
104 rs->sr_err = LDAP_OTHER;
105 rs->sr_text = "internal error";
109 locker = TXN_ID ( ltid );
111 opinfo.boi_bdb = op->o_bd;
112 opinfo.boi_txn = ltid;
113 opinfo.boi_locker = locker;
115 opinfo.boi_acl_cache = op->o_do_not_cache;
116 op->o_private = &opinfo;
118 if ( !be_issuffix( op->o_bd, &op->o_req_ndn ) ) {
119 dnParent( &op->o_req_ndn, &pdn );
123 rs->sr_err = bdb_dn2entry( op, ltid, &op->o_req_ndn, &ei, 1,
126 switch( rs->sr_err ) {
130 case DB_LOCK_DEADLOCK:
131 case DB_LOCK_NOTGRANTED:
134 rs->sr_text = "ldap server busy";
137 rs->sr_err = LDAP_OTHER;
138 rs->sr_text = "internal error";
142 if ( rs->sr_err == 0 ) {
144 eip = ei->bei_parent;
149 /* FIXME : dn2entry() should return non-glue entry */
150 if ( e == NULL || ( !manageDSAit && is_entry_glue( e ))) {
151 BerVarray deref = NULL;
153 Debug( LDAP_DEBUG_ARGS,
154 "<=- " LDAP_XSTRING(bdb_delete) ": no such object %s\n",
155 op->o_req_dn.bv_val, 0, 0);
157 if ( matched != NULL ) {
158 rs->sr_matched = ch_strdup( matched->e_dn );
159 rs->sr_ref = is_entry_referral( matched )
160 ? get_entry_referrals( op, matched )
162 bdb_unlocked_cache_return_entry_r(&bdb->bi_cache, matched);
166 if ( op->o_bd->be_syncinfo ) {
167 syncinfo_t *si = op->o_bd->be_syncinfo;
170 ber_dupbv( &tmpbv, &si->si_provideruri_bv[0] );
171 ber_bvarray_add( &deref, &tmpbv );
174 deref = default_referral;
176 rs->sr_ref = referral_rewrite( deref, NULL, &op->o_req_dn,
177 LDAP_SCOPE_DEFAULT );
180 rs->sr_err = LDAP_REFERRAL;
181 send_ldap_result( op, rs );
183 if ( rs->sr_ref != default_referral ) {
184 ber_bvarray_free( rs->sr_ref );
186 if ( deref != default_referral ) {
187 ber_bvarray_free( deref );
189 free( (char *)rs->sr_matched );
191 rs->sr_matched = NULL;
197 rc = bdb_cache_find_id( op, ltid, eip->bei_id, &eip, 0, locker, &plock );
199 case DB_LOCK_DEADLOCK:
200 case DB_LOCK_NOTGRANTED:
206 rs->sr_err = LDAP_OTHER;
207 rs->sr_text = "internal error";
210 if ( eip ) p = eip->bei_e;
212 if ( pdn.bv_len != 0 ) {
213 if( p == NULL || !bvmatch( &pdn, &p->e_nname )) {
214 Debug( LDAP_DEBUG_TRACE,
215 "<=- " LDAP_XSTRING(bdb_delete) ": parent "
216 "does not exist\n", 0, 0, 0 );
217 rs->sr_err = LDAP_OTHER;
218 rs->sr_text = "could not locate parent of entry";
222 /* check parent for "children" acl */
223 rs->sr_err = access_allowed( op, p,
224 children, NULL, ACL_WRITE, NULL );
227 switch( opinfo.boi_err ) {
228 case DB_LOCK_DEADLOCK:
229 case DB_LOCK_NOTGRANTED:
233 Debug( LDAP_DEBUG_TRACE,
234 "<=- " LDAP_XSTRING(bdb_delete) ": no write "
235 "access to parent\n", 0, 0, 0 );
236 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
237 rs->sr_text = "no write access to parent";
242 /* no parent, must be root to delete */
243 if( ! be_isroot( op ) ) {
244 if ( be_issuffix( op->o_bd, (struct berval *)&slap_empty_bv )
245 || be_shadow_update( op ) ) {
246 p = (Entry *)&slap_entry_root;
248 /* check parent for "children" acl */
249 rs->sr_err = access_allowed( op, p,
250 children, NULL, ACL_WRITE, NULL );
255 switch( opinfo.boi_err ) {
256 case DB_LOCK_DEADLOCK:
257 case DB_LOCK_NOTGRANTED:
261 Debug( LDAP_DEBUG_TRACE,
262 "<=- " LDAP_XSTRING(bdb_delete)
263 ": no access to parent\n",
265 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
266 rs->sr_text = "no write access to parent";
271 Debug( LDAP_DEBUG_TRACE,
272 "<=- " LDAP_XSTRING(bdb_delete)
273 ": no parent and not root\n", 0, 0, 0 );
274 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
280 if ( get_assert( op ) &&
281 ( test_filter( op, e, get_assertion( op )) != LDAP_COMPARE_TRUE ))
283 rs->sr_err = LDAP_ASSERTION_FAILED;
287 rs->sr_err = access_allowed( op, e,
288 entry, NULL, ACL_WRITE, NULL );
291 switch( opinfo.boi_err ) {
292 case DB_LOCK_DEADLOCK:
293 case DB_LOCK_NOTGRANTED:
297 Debug( LDAP_DEBUG_TRACE,
298 "<=- " LDAP_XSTRING(bdb_delete) ": no write access "
299 "to entry\n", 0, 0, 0 );
300 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
301 rs->sr_text = "no write access to entry";
305 if ( !manageDSAit && is_entry_referral( e ) ) {
306 /* entry is a referral, don't allow delete */
307 rs->sr_ref = get_entry_referrals( op, e );
309 Debug( LDAP_DEBUG_TRACE,
310 LDAP_XSTRING(bdb_delete) ": entry is referral\n",
313 rs->sr_err = LDAP_REFERRAL;
314 rs->sr_matched = e->e_name.bv_val;
315 send_ldap_result( op, rs );
317 ber_bvarray_free( rs->sr_ref );
319 rs->sr_matched = NULL;
326 if( op->o_preread ) {
327 if( preread_ctrl == NULL ) {
328 preread_ctrl = &ctrls[num_ctrls++];
329 ctrls[num_ctrls] = NULL;
331 if( slap_read_controls( op, rs, e,
332 &slap_pre_read_bv, preread_ctrl ) )
334 Debug( LDAP_DEBUG_TRACE,
335 "<=- " LDAP_XSTRING(bdb_delete) ": pre-read "
336 "failed!\n", 0, 0, 0 );
341 /* nested transaction */
342 rs->sr_err = TXN_BEGIN( bdb->bi_dbenv, ltid, <2,
343 bdb->bi_db_opflags );
345 if( rs->sr_err != 0 ) {
346 Debug( LDAP_DEBUG_TRACE,
347 LDAP_XSTRING(bdb_delete) ": txn_begin(2) failed: "
348 "%s (%d)\n", db_strerror(rs->sr_err), rs->sr_err, 0 );
349 rs->sr_err = LDAP_OTHER;
350 rs->sr_text = "internal error";
354 /* Can't do it if we have kids */
355 rs->sr_err = bdb_cache_children( op, lt2, e );
356 if( rs->sr_err != DB_NOTFOUND ) {
357 switch( rs->sr_err ) {
358 case DB_LOCK_DEADLOCK:
359 case DB_LOCK_NOTGRANTED:
362 Debug(LDAP_DEBUG_ARGS,
363 "<=- " LDAP_XSTRING(bdb_delete)
365 op->o_req_dn.bv_val, 0, 0);
366 rs->sr_err = LDAP_NOT_ALLOWED_ON_NONLEAF;
367 rs->sr_text = "subtree delete not supported";
370 Debug(LDAP_DEBUG_ARGS,
371 "<=- " LDAP_XSTRING(bdb_delete)
372 ": has_children failed: %s (%d)\n",
373 db_strerror(rs->sr_err), rs->sr_err, 0 );
374 rs->sr_err = LDAP_OTHER;
375 rs->sr_text = "internal error";
380 /* delete from dn2id */
381 rs->sr_err = bdb_dn2id_delete( op, lt2, eip, e );
382 if ( rs->sr_err != 0 ) {
383 Debug(LDAP_DEBUG_TRACE,
384 "<=- " LDAP_XSTRING(bdb_delete) ": dn2id failed: "
385 "%s (%d)\n", db_strerror(rs->sr_err), rs->sr_err, 0 );
386 switch( rs->sr_err ) {
387 case DB_LOCK_DEADLOCK:
388 case DB_LOCK_NOTGRANTED:
391 rs->sr_text = "DN index delete failed";
392 rs->sr_err = LDAP_OTHER;
396 /* delete from id2entry */
397 rs->sr_err = bdb_id2entry_delete( op->o_bd, lt2, e );
398 if ( rs->sr_err != 0 ) {
399 Debug(LDAP_DEBUG_TRACE,
400 "<=- " LDAP_XSTRING(bdb_delete) ": id2entry failed: "
401 "%s (%d)\n", db_strerror(rs->sr_err), rs->sr_err, 0 );
402 switch( rs->sr_err ) {
403 case DB_LOCK_DEADLOCK:
404 case DB_LOCK_NOTGRANTED:
407 rs->sr_text = "entry delete failed";
408 rs->sr_err = LDAP_OTHER;
412 /* delete indices for old attributes */
413 rs->sr_err = bdb_index_entry_del( op, lt2, e );
414 if ( rs->sr_err != LDAP_SUCCESS ) {
415 Debug( LDAP_DEBUG_TRACE,
416 "<=- " LDAP_XSTRING(bdb_delete) ": index failed: "
417 "%s (%d)\n", db_strerror(rs->sr_err), rs->sr_err, 0 );
418 switch( rs->sr_err ) {
419 case DB_LOCK_DEADLOCK:
420 case DB_LOCK_NOTGRANTED:
423 rs->sr_text = "entry index delete failed";
424 rs->sr_err = LDAP_OTHER;
428 if ( pdn.bv_len != 0 ) {
429 parent_is_glue = is_entry_glue(p);
430 rs->sr_err = bdb_cache_children( op, lt2, p );
431 if ( rs->sr_err != DB_NOTFOUND ) {
432 switch( rs->sr_err ) {
433 case DB_LOCK_DEADLOCK:
434 case DB_LOCK_NOTGRANTED:
439 Debug(LDAP_DEBUG_ARGS,
440 "<=- " LDAP_XSTRING(bdb_delete)
441 ": has_children failed: %s (%d)\n",
442 db_strerror(rs->sr_err), rs->sr_err, 0 );
443 rs->sr_err = LDAP_OTHER;
444 rs->sr_text = "internal error";
449 bdb_unlocked_cache_return_entry_r(&bdb->bi_cache, p);
453 if ( TXN_COMMIT( lt2, 0 ) != 0 ) {
454 rs->sr_err = LDAP_OTHER;
455 rs->sr_text = "txn_commit(2) failed";
461 #if 0 /* Do we want to reclaim deleted IDs? */
462 ldap_pvt_thread_mutex_lock( &bdb->bi_lastid_mutex );
463 if ( e->e_id == bdb->bi_lastid ) {
464 bdb_last_id( op->o_bd, ltid );
466 ldap_pvt_thread_mutex_unlock( &bdb->bi_lastid_mutex );
470 if ( ( rs->sr_err = TXN_ABORT( ltid ) ) != 0 ) {
471 rs->sr_text = "txn_abort (no-op) failed";
473 rs->sr_err = LDAP_NO_OPERATION;
477 rc = bdb_cache_delete( &bdb->bi_cache, e, bdb->bi_dbenv,
480 case DB_LOCK_DEADLOCK:
481 case DB_LOCK_NOTGRANTED:
485 rs->sr_err = TXN_COMMIT( ltid, 0 );
488 op->o_private = NULL;
490 if( rs->sr_err != 0 ) {
491 Debug( LDAP_DEBUG_TRACE,
492 LDAP_XSTRING(bdb_delete) ": txn_%s failed: %s (%d)\n",
493 op->o_noop ? "abort (no-op)" : "commit",
494 db_strerror(rs->sr_err), rs->sr_err );
495 rs->sr_err = LDAP_OTHER;
496 rs->sr_text = "commit failed";
501 Debug( LDAP_DEBUG_TRACE,
502 LDAP_XSTRING(bdb_delete) ": deleted%s id=%08lx dn=\"%s\"\n",
503 op->o_noop ? " (no-op)" : "",
504 eid, op->o_req_dn.bv_val );
505 rs->sr_err = LDAP_SUCCESS;
507 if( num_ctrls ) rs->sr_ctrls = ctrls;
510 send_ldap_result( op, rs );
512 if( rs->sr_err == LDAP_SUCCESS && bdb->bi_txn_cp ) {
513 ldap_pvt_thread_yield();
514 TXN_CHECKPOINT( bdb->bi_dbenv,
515 bdb->bi_txn_cp_kbyte, bdb->bi_txn_cp_min, 0 );
518 if ( rs->sr_err == LDAP_SUCCESS && parent_is_glue && parent_is_leaf ) {
519 op->o_delete_glue_parent = 1;
524 bdb_unlocked_cache_return_entry_r(&bdb->bi_cache, p);
528 if ( rs->sr_err == LDAP_SUCCESS ) {
529 /* Free the EntryInfo and the Entry */
530 bdb_cache_delete_cleanup( &bdb->bi_cache, BEI(e) );
532 bdb_unlocked_cache_return_entry_w(&bdb->bi_cache, e);
538 op->o_private = NULL;
541 slap_sl_free( ctxcsn_ndn.bv_val, op->o_tmpmemctx );
543 if( preread_ctrl != NULL ) {
544 slap_sl_free( (*preread_ctrl)->ldctl_value.bv_val, op->o_tmpmemctx );
545 slap_sl_free( *preread_ctrl, op->o_tmpmemctx );