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>
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 ldap_pvt_thread_yield();
99 bdb_trans_backoff( ++num_retries );
102 /* begin transaction */
103 rs->sr_err = TXN_BEGIN( bdb->bi_dbenv, NULL, <id,
104 bdb->bi_db_opflags );
106 if( rs->sr_err != 0 ) {
107 Debug( LDAP_DEBUG_TRACE,
108 LDAP_XSTRING(bdb_delete) ": txn_begin failed: "
109 "%s (%d)\n", db_strerror(rs->sr_err), rs->sr_err, 0 );
110 rs->sr_err = LDAP_OTHER;
111 rs->sr_text = "internal error";
115 locker = TXN_ID ( ltid );
117 opinfo.boi_bdb = op->o_bd;
118 opinfo.boi_txn = ltid;
119 opinfo.boi_locker = locker;
121 opinfo.boi_acl_cache = op->o_do_not_cache;
122 op->o_private = &opinfo;
124 if ( !be_issuffix( op->o_bd, &op->o_req_ndn ) ) {
125 dnParent( &op->o_req_ndn, &pdn );
129 rs->sr_err = bdb_dn2entry( op, ltid, &op->o_req_ndn, &ei, 1,
132 switch( rs->sr_err ) {
136 case DB_LOCK_DEADLOCK:
137 case DB_LOCK_NOTGRANTED:
140 rs->sr_text = "ldap server busy";
143 rs->sr_err = LDAP_OTHER;
144 rs->sr_text = "internal error";
148 if ( rs->sr_err == 0 ) {
150 eip = ei->bei_parent;
155 /* FIXME : dn2entry() should return non-glue entry */
156 if ( e == NULL || ( !manageDSAit && is_entry_glue( e ))) {
157 Debug( LDAP_DEBUG_ARGS,
158 "<=- " LDAP_XSTRING(bdb_delete) ": no such object %s\n",
159 op->o_req_dn.bv_val, 0, 0);
161 if ( matched != NULL ) {
162 rs->sr_matched = ch_strdup( matched->e_dn );
163 rs->sr_ref = is_entry_referral( matched )
164 ? get_entry_referrals( op, matched )
166 bdb_unlocked_cache_return_entry_r(&bdb->bi_cache, matched);
170 rs->sr_ref = referral_rewrite( default_referral, NULL,
171 &op->o_req_dn, LDAP_SCOPE_DEFAULT );
174 rs->sr_err = LDAP_REFERRAL;
175 rs->sr_flags = REP_MATCHED_MUSTBEFREED | REP_REF_MUSTBEFREED;
179 rc = bdb_cache_find_id( op, ltid, eip->bei_id, &eip, 0, locker, &plock );
181 case DB_LOCK_DEADLOCK:
182 case DB_LOCK_NOTGRANTED:
188 rs->sr_err = LDAP_OTHER;
189 rs->sr_text = "internal error";
192 if ( eip ) p = eip->bei_e;
194 if ( pdn.bv_len != 0 ) {
195 if( p == NULL || !bvmatch( &pdn, &p->e_nname )) {
196 Debug( LDAP_DEBUG_TRACE,
197 "<=- " LDAP_XSTRING(bdb_delete) ": parent "
198 "does not exist\n", 0, 0, 0 );
199 rs->sr_err = LDAP_OTHER;
200 rs->sr_text = "could not locate parent of entry";
204 /* check parent for "children" acl */
205 rs->sr_err = access_allowed( op, p,
206 children, NULL, ACL_WDEL, NULL );
209 switch( opinfo.boi_err ) {
210 case DB_LOCK_DEADLOCK:
211 case DB_LOCK_NOTGRANTED:
215 Debug( LDAP_DEBUG_TRACE,
216 "<=- " LDAP_XSTRING(bdb_delete) ": no write "
217 "access to parent\n", 0, 0, 0 );
218 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
219 rs->sr_text = "no write access to parent";
224 /* no parent, must be root to delete */
225 if( ! be_isroot( op ) ) {
226 if ( be_issuffix( op->o_bd, (struct berval *)&slap_empty_bv )
227 || be_shadow_update( op ) ) {
228 p = (Entry *)&slap_entry_root;
230 /* check parent for "children" acl */
231 rs->sr_err = access_allowed( op, p,
232 children, NULL, ACL_WDEL, NULL );
237 switch( opinfo.boi_err ) {
238 case DB_LOCK_DEADLOCK:
239 case DB_LOCK_NOTGRANTED:
243 Debug( LDAP_DEBUG_TRACE,
244 "<=- " LDAP_XSTRING(bdb_delete)
245 ": no access to parent\n",
247 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
248 rs->sr_text = "no write access to parent";
253 Debug( LDAP_DEBUG_TRACE,
254 "<=- " LDAP_XSTRING(bdb_delete)
255 ": no parent and not root\n", 0, 0, 0 );
256 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
262 if ( get_assert( op ) &&
263 ( test_filter( op, e, get_assertion( op )) != LDAP_COMPARE_TRUE ))
265 rs->sr_err = LDAP_ASSERTION_FAILED;
269 rs->sr_err = access_allowed( op, e,
270 entry, NULL, ACL_WDEL, NULL );
273 switch( opinfo.boi_err ) {
274 case DB_LOCK_DEADLOCK:
275 case DB_LOCK_NOTGRANTED:
279 Debug( LDAP_DEBUG_TRACE,
280 "<=- " LDAP_XSTRING(bdb_delete) ": no write access "
281 "to entry\n", 0, 0, 0 );
282 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
283 rs->sr_text = "no write access to entry";
287 if ( !manageDSAit && is_entry_referral( e ) ) {
288 /* entry is a referral, don't allow delete */
289 rs->sr_ref = get_entry_referrals( op, e );
291 Debug( LDAP_DEBUG_TRACE,
292 LDAP_XSTRING(bdb_delete) ": entry is referral\n",
295 rs->sr_err = LDAP_REFERRAL;
296 rs->sr_matched = ch_strdup( e->e_name.bv_val );
297 rs->sr_flags = REP_MATCHED_MUSTBEFREED | REP_REF_MUSTBEFREED;
302 if( op->o_preread ) {
303 if( preread_ctrl == NULL ) {
304 preread_ctrl = &ctrls[num_ctrls++];
305 ctrls[num_ctrls] = NULL;
307 if( slap_read_controls( op, rs, e,
308 &slap_pre_read_bv, preread_ctrl ) )
310 Debug( LDAP_DEBUG_TRACE,
311 "<=- " LDAP_XSTRING(bdb_delete) ": pre-read "
312 "failed!\n", 0, 0, 0 );
317 /* nested transaction */
318 rs->sr_err = TXN_BEGIN( bdb->bi_dbenv, ltid, <2,
319 bdb->bi_db_opflags );
321 if( rs->sr_err != 0 ) {
322 Debug( LDAP_DEBUG_TRACE,
323 LDAP_XSTRING(bdb_delete) ": txn_begin(2) failed: "
324 "%s (%d)\n", db_strerror(rs->sr_err), rs->sr_err, 0 );
325 rs->sr_err = LDAP_OTHER;
326 rs->sr_text = "internal error";
330 /* Can't do it if we have kids */
331 rs->sr_err = bdb_cache_children( op, lt2, e );
332 if( rs->sr_err != DB_NOTFOUND ) {
333 switch( rs->sr_err ) {
334 case DB_LOCK_DEADLOCK:
335 case DB_LOCK_NOTGRANTED:
338 Debug(LDAP_DEBUG_ARGS,
339 "<=- " LDAP_XSTRING(bdb_delete)
341 op->o_req_dn.bv_val, 0, 0);
342 rs->sr_err = LDAP_NOT_ALLOWED_ON_NONLEAF;
343 rs->sr_text = "subordinate objects must be deleted first";
346 Debug(LDAP_DEBUG_ARGS,
347 "<=- " LDAP_XSTRING(bdb_delete)
348 ": has_children failed: %s (%d)\n",
349 db_strerror(rs->sr_err), rs->sr_err, 0 );
350 rs->sr_err = LDAP_OTHER;
351 rs->sr_text = "internal error";
356 /* delete from dn2id */
357 rs->sr_err = bdb_dn2id_delete( op, lt2, eip, e );
358 if ( rs->sr_err != 0 ) {
359 Debug(LDAP_DEBUG_TRACE,
360 "<=- " LDAP_XSTRING(bdb_delete) ": dn2id failed: "
361 "%s (%d)\n", db_strerror(rs->sr_err), rs->sr_err, 0 );
362 switch( rs->sr_err ) {
363 case DB_LOCK_DEADLOCK:
364 case DB_LOCK_NOTGRANTED:
367 rs->sr_text = "DN index delete failed";
368 rs->sr_err = LDAP_OTHER;
372 /* delete from id2entry */
373 rs->sr_err = bdb_id2entry_delete( op->o_bd, lt2, e );
374 if ( rs->sr_err != 0 ) {
375 Debug(LDAP_DEBUG_TRACE,
376 "<=- " LDAP_XSTRING(bdb_delete) ": id2entry failed: "
377 "%s (%d)\n", db_strerror(rs->sr_err), rs->sr_err, 0 );
378 switch( rs->sr_err ) {
379 case DB_LOCK_DEADLOCK:
380 case DB_LOCK_NOTGRANTED:
383 rs->sr_text = "entry delete failed";
384 rs->sr_err = LDAP_OTHER;
388 /* delete indices for old attributes */
389 rs->sr_err = bdb_index_entry_del( op, lt2, e );
390 if ( rs->sr_err != LDAP_SUCCESS ) {
391 Debug( LDAP_DEBUG_TRACE,
392 "<=- " LDAP_XSTRING(bdb_delete) ": index failed: "
393 "%s (%d)\n", db_strerror(rs->sr_err), rs->sr_err, 0 );
394 switch( rs->sr_err ) {
395 case DB_LOCK_DEADLOCK:
396 case DB_LOCK_NOTGRANTED:
399 rs->sr_text = "entry index delete failed";
400 rs->sr_err = LDAP_OTHER;
404 if ( pdn.bv_len != 0 ) {
405 parent_is_glue = is_entry_glue(p);
406 rs->sr_err = bdb_cache_children( op, lt2, p );
407 if ( rs->sr_err != DB_NOTFOUND ) {
408 switch( rs->sr_err ) {
409 case DB_LOCK_DEADLOCK:
410 case DB_LOCK_NOTGRANTED:
415 Debug(LDAP_DEBUG_ARGS,
416 "<=- " LDAP_XSTRING(bdb_delete)
417 ": has_children failed: %s (%d)\n",
418 db_strerror(rs->sr_err), rs->sr_err, 0 );
419 rs->sr_err = LDAP_OTHER;
420 rs->sr_text = "internal error";
425 bdb_unlocked_cache_return_entry_r(&bdb->bi_cache, p);
429 if ( TXN_COMMIT( lt2, 0 ) != 0 ) {
430 rs->sr_err = LDAP_OTHER;
431 rs->sr_text = "txn_commit(2) failed";
437 #if 0 /* Do we want to reclaim deleted IDs? */
438 ldap_pvt_thread_mutex_lock( &bdb->bi_lastid_mutex );
439 if ( e->e_id == bdb->bi_lastid ) {
440 bdb_last_id( op->o_bd, ltid );
442 ldap_pvt_thread_mutex_unlock( &bdb->bi_lastid_mutex );
446 if ( ( rs->sr_err = TXN_ABORT( ltid ) ) != 0 ) {
447 rs->sr_text = "txn_abort (no-op) failed";
449 rs->sr_err = LDAP_NO_OPERATION;
454 rc = bdb_cache_delete( &bdb->bi_cache, e, bdb->bi_dbenv,
457 case DB_LOCK_DEADLOCK:
458 case DB_LOCK_NOTGRANTED:
462 rs->sr_err = TXN_COMMIT( ltid, 0 );
465 op->o_private = NULL;
467 if( rs->sr_err != 0 ) {
468 Debug( LDAP_DEBUG_TRACE,
469 LDAP_XSTRING(bdb_delete) ": txn_%s failed: %s (%d)\n",
470 op->o_noop ? "abort (no-op)" : "commit",
471 db_strerror(rs->sr_err), rs->sr_err );
472 rs->sr_err = LDAP_OTHER;
473 rs->sr_text = "commit failed";
478 Debug( LDAP_DEBUG_TRACE,
479 LDAP_XSTRING(bdb_delete) ": deleted%s id=%08lx dn=\"%s\"\n",
480 op->o_noop ? " (no-op)" : "",
481 eid, op->o_req_dn.bv_val );
482 rs->sr_err = LDAP_SUCCESS;
484 if( num_ctrls ) rs->sr_ctrls = ctrls;
487 if ( rs->sr_err == LDAP_SUCCESS && parent_is_glue && parent_is_leaf ) {
488 op->o_delete_glue_parent = 1;
492 bdb_unlocked_cache_return_entry_r(&bdb->bi_cache, p);
496 if ( rs->sr_err == LDAP_SUCCESS ) {
497 /* Free the EntryInfo and the Entry */
498 bdb_cache_delete_cleanup( &bdb->bi_cache, BEI(e) );
500 bdb_unlocked_cache_return_entry_w(&bdb->bi_cache, e);
507 op->o_private = NULL;
509 send_ldap_result( op, rs );
510 if ( !SLAP_SHADOW( op->o_bd ))
511 slap_graduate_commit_csn( op );
513 if( preread_ctrl != NULL ) {
514 slap_sl_free( (*preread_ctrl)->ldctl_value.bv_val, op->o_tmpmemctx );
515 slap_sl_free( *preread_ctrl, op->o_tmpmemctx );
518 if( rs->sr_err == LDAP_SUCCESS && bdb->bi_txn_cp ) {
519 ldap_pvt_thread_yield();
520 TXN_CHECKPOINT( bdb->bi_dbenv,
521 bdb->bi_txn_cp_kbyte, bdb->bi_txn_cp_min, 0 );