1 /* delete.c - mdb backend delete routine */
3 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
5 * Copyright 2000-2011 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 mdb_delete( Operation *op, SlapReply *rs )
28 struct mdb_info *mdb = (struct mdb_info *) op->o_bd->be_private;
29 struct berval pdn = {0, NULL};
32 int manageDSAit = get_manageDSAit( op );
33 AttributeDescription *children = slap_schema.si_ad_children;
34 AttributeDescription *entry = slap_schema.si_ad_entry;
37 mdb_op_info opinfo = {{{ 0 }}}, *moi = &opinfo;
39 LDAPControl **preread_ctrl = NULL;
40 LDAPControl *ctrls[SLAP_MAX_RESPONSE_CONTROLS];
43 int parent_is_glue = 0;
44 int parent_is_leaf = 0;
50 Debug( LDAP_DEBUG_ARGS, "==> " LDAP_XSTRING(mdb_delete) ": %s\n",
51 op->o_req_dn.bv_val, 0, 0 );
55 /* acquire connection lock */
56 ldap_pvt_thread_mutex_lock( &op->o_conn->c_mutex );
57 if( op->o_conn->c_txn == CONN_TXN_INACTIVE ) {
58 rs->sr_text = "invalid transaction identifier";
59 rs->sr_err = LDAP_X_TXN_ID_INVALID;
61 } else if( op->o_conn->c_txn == CONN_TXN_SETTLE ) {
66 if( op->o_conn->c_txn_backend == NULL ) {
67 op->o_conn->c_txn_backend = op->o_bd;
69 } else if( op->o_conn->c_txn_backend != op->o_bd ) {
70 rs->sr_text = "transaction cannot span multiple database contexts";
71 rs->sr_err = LDAP_AFFECTS_MULTIPLE_DSAS;
75 /* insert operation into transaction */
77 rs->sr_text = "transaction specified";
78 rs->sr_err = LDAP_X_TXN_SPECIFY_OKAY;
81 /* release connection lock */
82 ldap_pvt_thread_mutex_unlock( &op->o_conn->c_mutex );
85 send_ldap_result( op, rs );
94 if ( BER_BVISNULL( &op->o_csn ) ) {
96 char csnbuf[LDAP_PVT_CSNSTR_BUFSIZE];
99 csn.bv_len = sizeof(csnbuf);
100 slap_get_csn( op, &csn, 1 );
103 /* begin transaction */
104 rs->sr_err = mdb_opinfo_get( op, mdb, 0, &moi );
106 if( rs->sr_err != 0 ) {
107 Debug( LDAP_DEBUG_TRACE,
108 LDAP_XSTRING(mdb_delete) ": txn_begin failed: "
109 "%s (%d)\n", mdb_strerror(rs->sr_err), rs->sr_err, 0 );
110 rs->sr_err = LDAP_OTHER;
111 rs->sr_text = "internal error";
117 if ( !be_issuffix( op->o_bd, &op->o_req_ndn ) ) {
118 dnParent( &op->o_req_ndn, &pdn );
121 rs->sr_err = mdb_cursor_open( txn, mdb->mi_dn2id, &mc );
123 rs->sr_err = LDAP_OTHER;
124 rs->sr_text = "internal error";
128 rs->sr_err = mdb_dn2entry( op, txn, mc, &pdn, &p, 1 );
129 switch( rs->sr_err ) {
134 rs->sr_text = "ldap server busy";
137 rs->sr_err = LDAP_OTHER;
138 rs->sr_text = "internal error";
141 if ( rs->sr_err == MDB_NOTFOUND ) {
142 Debug( LDAP_DEBUG_ARGS,
143 "<=- " LDAP_XSTRING(mdb_delete) ": no such object %s\n",
144 op->o_req_dn.bv_val, 0, 0);
146 if ( p && !BER_BVISEMPTY( &p->e_name )) {
147 rs->sr_matched = ch_strdup( p->e_name.bv_val );
148 if ( is_entry_referral( p )) {
149 BerVarray ref = get_entry_referrals( op, p );
150 rs->sr_ref = referral_rewrite( ref, &p->e_name,
151 &op->o_req_dn, LDAP_SCOPE_DEFAULT );
152 ber_bvarray_free( ref );
157 rs->sr_ref = referral_rewrite( default_referral, NULL,
158 &op->o_req_dn, LDAP_SCOPE_DEFAULT );
161 mdb_entry_return( op, p );
165 rs->sr_err = LDAP_REFERRAL;
166 rs->sr_flags = REP_MATCHED_MUSTBEFREED | REP_REF_MUSTBEFREED;
171 rs->sr_err = mdb_dn2entry( op, txn, mc, &op->o_req_ndn, &e, 0 );
172 switch( rs->sr_err ) {
179 rs->sr_text = "ldap server busy";
182 rs->sr_err = LDAP_OTHER;
183 rs->sr_text = "internal error";
187 /* FIXME : dn2entry() should return non-glue entry */
188 if ( rs->sr_err == MDB_NOTFOUND || ( !manageDSAit && is_entry_glue( e ))) {
189 Debug( LDAP_DEBUG_ARGS,
190 "<=- " LDAP_XSTRING(mdb_delete) ": no such object %s\n",
191 op->o_req_dn.bv_val, 0, 0);
193 rs->sr_matched = ch_strdup( e->e_dn );
194 if ( is_entry_referral( e )) {
195 BerVarray ref = get_entry_referrals( op, e );
196 rs->sr_ref = referral_rewrite( ref, &e->e_name,
197 &op->o_req_dn, LDAP_SCOPE_DEFAULT );
198 ber_bvarray_free( ref );
202 mdb_entry_return( op, e );
205 rs->sr_err = LDAP_REFERRAL;
206 rs->sr_flags = REP_MATCHED_MUSTBEFREED | REP_REF_MUSTBEFREED;
210 if ( pdn.bv_len != 0 ) {
211 /* check parent for "children" acl */
212 rs->sr_err = access_allowed( op, p,
213 children, NULL, ACL_WDEL, NULL );
216 Debug( LDAP_DEBUG_TRACE,
217 "<=- " LDAP_XSTRING(mdb_delete) ": no write "
218 "access to parent\n", 0, 0, 0 );
219 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
220 rs->sr_text = "no write access to parent";
225 /* no parent, must be root to delete */
226 if( ! be_isroot( op ) ) {
227 if ( be_issuffix( op->o_bd, (struct berval *)&slap_empty_bv )
228 || be_shadow_update( op ) ) {
229 p = (Entry *)&slap_entry_root;
231 /* check parent for "children" acl */
232 rs->sr_err = access_allowed( op, p,
233 children, NULL, ACL_WDEL, NULL );
238 Debug( LDAP_DEBUG_TRACE,
239 "<=- " LDAP_XSTRING(mdb_delete)
240 ": no access to parent\n",
242 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
243 rs->sr_text = "no write access to parent";
248 Debug( LDAP_DEBUG_TRACE,
249 "<=- " LDAP_XSTRING(mdb_delete)
250 ": no parent and not root\n", 0, 0, 0 );
251 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
257 if ( get_assert( op ) &&
258 ( test_filter( op, e, get_assertion( op )) != LDAP_COMPARE_TRUE ))
260 rs->sr_err = LDAP_ASSERTION_FAILED;
264 rs->sr_err = access_allowed( op, e,
265 entry, NULL, ACL_WDEL, NULL );
268 Debug( LDAP_DEBUG_TRACE,
269 "<=- " LDAP_XSTRING(mdb_delete) ": no write access "
270 "to entry\n", 0, 0, 0 );
271 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
272 rs->sr_text = "no write access to entry";
276 if ( !manageDSAit && is_entry_referral( e ) ) {
277 /* entry is a referral, don't allow delete */
278 rs->sr_ref = get_entry_referrals( op, e );
280 Debug( LDAP_DEBUG_TRACE,
281 LDAP_XSTRING(mdb_delete) ": entry is referral\n",
284 rs->sr_err = LDAP_REFERRAL;
285 rs->sr_matched = ch_strdup( e->e_name.bv_val );
286 rs->sr_flags = REP_MATCHED_MUSTBEFREED | REP_REF_MUSTBEFREED;
291 if( op->o_preread ) {
292 if( preread_ctrl == NULL ) {
293 preread_ctrl = &ctrls[num_ctrls++];
294 ctrls[num_ctrls] = NULL;
296 if( slap_read_controls( op, rs, e,
297 &slap_pre_read_bv, preread_ctrl ) )
299 Debug( LDAP_DEBUG_TRACE,
300 "<=- " LDAP_XSTRING(mdb_delete) ": pre-read "
301 "failed!\n", 0, 0, 0 );
302 if ( op->o_preread & SLAP_CONTROL_CRITICAL ) {
303 /* FIXME: is it correct to abort
304 * operation if control fails? */
312 /* Can't do it if we have kids */
313 rs->sr_err = mdb_dn2id_children( op, txn, e );
314 if( rs->sr_err != MDB_NOTFOUND ) {
315 switch( rs->sr_err ) {
317 Debug(LDAP_DEBUG_ARGS,
318 "<=- " LDAP_XSTRING(mdb_delete)
320 op->o_req_dn.bv_val, 0, 0);
321 rs->sr_err = LDAP_NOT_ALLOWED_ON_NONLEAF;
322 rs->sr_text = "subordinate objects must be deleted first";
325 Debug(LDAP_DEBUG_ARGS,
326 "<=- " LDAP_XSTRING(mdb_delete)
327 ": has_children failed: %s (%d)\n",
328 mdb_strerror(rs->sr_err), rs->sr_err, 0 );
329 rs->sr_err = LDAP_OTHER;
330 rs->sr_text = "internal error";
335 /* delete from dn2id */
336 rs->sr_err = mdb_dn2id_delete( op, mc, e->e_id );
337 mdb_cursor_close( mc );
338 if ( rs->sr_err != 0 ) {
339 Debug(LDAP_DEBUG_TRACE,
340 "<=- " LDAP_XSTRING(mdb_delete) ": dn2id failed: "
341 "%s (%d)\n", mdb_strerror(rs->sr_err), rs->sr_err, 0 );
342 rs->sr_text = "DN index delete failed";
343 rs->sr_err = LDAP_OTHER;
347 /* delete indices for old attributes */
348 rs->sr_err = mdb_index_entry_del( op, txn, e );
349 if ( rs->sr_err != LDAP_SUCCESS ) {
350 Debug(LDAP_DEBUG_TRACE,
351 "<=- " LDAP_XSTRING(mdb_delete) ": index failed: "
352 "%s (%d)\n", mdb_strerror(rs->sr_err), rs->sr_err, 0 );
353 rs->sr_text = "entry index delete failed";
354 rs->sr_err = LDAP_OTHER;
358 /* fixup delete CSN */
359 if ( !SLAP_SHADOW( op->o_bd )) {
360 struct berval vals[2];
362 assert( !BER_BVISNULL( &op->o_csn ) );
364 BER_BVZERO( &vals[1] );
365 rs->sr_err = mdb_index_values( op, txn, slap_schema.si_ad_entryCSN,
366 vals, 0, SLAP_INDEX_ADD_OP );
367 if ( rs->sr_err != LDAP_SUCCESS ) {
368 rs->sr_text = "entryCSN index update failed";
369 rs->sr_err = LDAP_OTHER;
374 /* delete from id2entry */
375 rs->sr_err = mdb_id2entry_delete( op->o_bd, txn, e );
376 if ( rs->sr_err != 0 ) {
377 Debug( LDAP_DEBUG_TRACE,
378 "<=- " LDAP_XSTRING(mdb_delete) ": id2entry failed: "
379 "%s (%d)\n", mdb_strerror(rs->sr_err), rs->sr_err, 0 );
380 rs->sr_text = "entry delete failed";
381 rs->sr_err = LDAP_OTHER;
385 if ( pdn.bv_len != 0 ) {
386 parent_is_glue = is_entry_glue(p);
387 rs->sr_err = mdb_dn2id_children( op, txn, p );
388 if ( rs->sr_err != MDB_NOTFOUND ) {
389 switch( rs->sr_err ) {
393 Debug(LDAP_DEBUG_ARGS,
394 "<=- " LDAP_XSTRING(mdb_delete)
395 ": has_children failed: %s (%d)\n",
396 mdb_strerror(rs->sr_err), rs->sr_err, 0 );
397 rs->sr_err = LDAP_OTHER;
398 rs->sr_text = "internal error";
403 mdb_entry_return( op, p );
407 if( moi == &opinfo ) {
408 LDAP_SLIST_REMOVE( &op->o_extra, &opinfo.moi_oe, OpExtra, oe_next );
409 opinfo.moi_oe.oe_key = NULL;
411 mdb_txn_abort( txn );
412 rs->sr_err = LDAP_X_NO_OPERATION;
416 rs->sr_err = mdb_txn_commit( txn );
421 if( rs->sr_err != 0 ) {
422 Debug( LDAP_DEBUG_TRACE,
423 LDAP_XSTRING(mdb_delete) ": txn_%s failed: %s (%d)\n",
424 op->o_noop ? "abort (no-op)" : "commit",
425 mdb_strerror(rs->sr_err), rs->sr_err );
426 rs->sr_err = LDAP_OTHER;
427 rs->sr_text = "commit failed";
432 Debug( LDAP_DEBUG_TRACE,
433 LDAP_XSTRING(mdb_delete) ": deleted%s id=%08lx dn=\"%s\"\n",
434 op->o_noop ? " (no-op)" : "",
435 e->e_id, op->o_req_dn.bv_val );
436 rs->sr_err = LDAP_SUCCESS;
438 if( num_ctrls ) rs->sr_ctrls = ctrls;
441 if ( rs->sr_err == LDAP_SUCCESS && parent_is_glue && parent_is_leaf ) {
442 op->o_delete_glue_parent = 1;
446 mdb_entry_return( op, p );
451 mdb_entry_return( op, e );
454 if( moi == &opinfo ) {
456 mdb_txn_abort( txn );
458 if ( opinfo.moi_oe.oe_key ) {
459 LDAP_SLIST_REMOVE( &op->o_extra, &opinfo.moi_oe, OpExtra, oe_next );
463 send_ldap_result( op, rs );
464 slap_graduate_commit_csn( op );
466 if( preread_ctrl != NULL && (*preread_ctrl) != NULL ) {
467 slap_sl_free( (*preread_ctrl)->ldctl_value.bv_val, op->o_tmpmemctx );
468 slap_sl_free( *preread_ctrl, op->o_tmpmemctx );
472 if( rs->sr_err == LDAP_SUCCESS && mdb->bi_txn_cp_kbyte ) {
473 TXN_CHECKPOINT( mdb->bi_dbenv,
474 mdb->bi_txn_cp_kbyte, mdb->bi_txn_cp_min, 0 );