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;
36 mdb_op_info opinfo = {{{ 0 }}}, *moi = &opinfo;
38 LDAPControl **preread_ctrl = NULL;
39 LDAPControl *ctrls[SLAP_MAX_RESPONSE_CONTROLS];
42 int parent_is_glue = 0;
43 int parent_is_leaf = 0;
49 Debug( LDAP_DEBUG_ARGS, "==> " LDAP_XSTRING(mdb_delete) ": %s\n",
50 op->o_req_dn.bv_val, 0, 0 );
54 /* acquire connection lock */
55 ldap_pvt_thread_mutex_lock( &op->o_conn->c_mutex );
56 if( op->o_conn->c_txn == CONN_TXN_INACTIVE ) {
57 rs->sr_text = "invalid transaction identifier";
58 rs->sr_err = LDAP_X_TXN_ID_INVALID;
60 } else if( op->o_conn->c_txn == CONN_TXN_SETTLE ) {
65 if( op->o_conn->c_txn_backend == NULL ) {
66 op->o_conn->c_txn_backend = op->o_bd;
68 } else if( op->o_conn->c_txn_backend != op->o_bd ) {
69 rs->sr_text = "transaction cannot span multiple database contexts";
70 rs->sr_err = LDAP_AFFECTS_MULTIPLE_DSAS;
74 /* insert operation into transaction */
76 rs->sr_text = "transaction specified";
77 rs->sr_err = LDAP_X_TXN_SPECIFY_OKAY;
80 /* release connection lock */
81 ldap_pvt_thread_mutex_unlock( &op->o_conn->c_mutex );
84 send_ldap_result( op, rs );
93 if ( BER_BVISNULL( &op->o_csn ) ) {
95 char csnbuf[LDAP_PVT_CSNSTR_BUFSIZE];
98 csn.bv_len = sizeof(csnbuf);
99 slap_get_csn( op, &csn, 1 );
102 /* begin transaction */
103 rs->sr_err = mdb_opinfo_get( op, mdb, 0, &moi );
105 if( rs->sr_err != 0 ) {
106 Debug( LDAP_DEBUG_TRACE,
107 LDAP_XSTRING(mdb_delete) ": txn_begin failed: "
108 "%s (%d)\n", mdb_strerror(rs->sr_err), rs->sr_err, 0 );
109 rs->sr_err = LDAP_OTHER;
110 rs->sr_text = "internal error";
116 if ( !be_issuffix( op->o_bd, &op->o_req_ndn ) ) {
117 dnParent( &op->o_req_ndn, &pdn );
121 rs->sr_err = mdb_dn2entry( op, txn, &pdn, &p, 1 );
122 switch( rs->sr_err ) {
127 rs->sr_text = "ldap server busy";
130 rs->sr_err = LDAP_OTHER;
131 rs->sr_text = "internal error";
134 if ( rs->sr_err == MDB_NOTFOUND ) {
135 Debug( LDAP_DEBUG_ARGS,
136 "<=- " LDAP_XSTRING(mdb_delete) ": no such object %s\n",
137 op->o_req_dn.bv_val, 0, 0);
139 if ( p && !BER_BVISEMPTY( &p->e_name )) {
140 rs->sr_matched = ch_strdup( p->e_name.bv_val );
141 if ( is_entry_referral( p )) {
142 BerVarray ref = get_entry_referrals( op, p );
143 rs->sr_ref = referral_rewrite( ref, &p->e_name,
144 &op->o_req_dn, LDAP_SCOPE_DEFAULT );
145 ber_bvarray_free( ref );
150 rs->sr_ref = referral_rewrite( default_referral, NULL,
151 &op->o_req_dn, LDAP_SCOPE_DEFAULT );
154 mdb_entry_return( op, p );
158 rs->sr_err = LDAP_REFERRAL;
159 rs->sr_flags = REP_MATCHED_MUSTBEFREED | REP_REF_MUSTBEFREED;
164 rs->sr_err = mdb_dn2entry( op, txn, &op->o_req_ndn, &e, 0 );
165 switch( rs->sr_err ) {
172 rs->sr_text = "ldap server busy";
175 rs->sr_err = LDAP_OTHER;
176 rs->sr_text = "internal error";
180 /* FIXME : dn2entry() should return non-glue entry */
181 if ( rs->sr_err == MDB_NOTFOUND || ( !manageDSAit && is_entry_glue( e ))) {
182 Debug( LDAP_DEBUG_ARGS,
183 "<=- " LDAP_XSTRING(mdb_delete) ": no such object %s\n",
184 op->o_req_dn.bv_val, 0, 0);
186 rs->sr_matched = ch_strdup( e->e_dn );
187 if ( is_entry_referral( e )) {
188 BerVarray ref = get_entry_referrals( op, e );
189 rs->sr_ref = referral_rewrite( ref, &e->e_name,
190 &op->o_req_dn, LDAP_SCOPE_DEFAULT );
191 ber_bvarray_free( ref );
195 mdb_entry_return( op, e );
198 rs->sr_err = LDAP_REFERRAL;
199 rs->sr_flags = REP_MATCHED_MUSTBEFREED | REP_REF_MUSTBEFREED;
203 if ( pdn.bv_len != 0 ) {
204 /* check parent for "children" acl */
205 rs->sr_err = access_allowed( op, p,
206 children, NULL, ACL_WDEL, NULL );
209 Debug( LDAP_DEBUG_TRACE,
210 "<=- " LDAP_XSTRING(mdb_delete) ": no write "
211 "access to parent\n", 0, 0, 0 );
212 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
213 rs->sr_text = "no write access to parent";
218 /* no parent, must be root to delete */
219 if( ! be_isroot( op ) ) {
220 if ( be_issuffix( op->o_bd, (struct berval *)&slap_empty_bv )
221 || be_shadow_update( op ) ) {
222 p = (Entry *)&slap_entry_root;
224 /* check parent for "children" acl */
225 rs->sr_err = access_allowed( op, p,
226 children, NULL, ACL_WDEL, NULL );
231 Debug( LDAP_DEBUG_TRACE,
232 "<=- " LDAP_XSTRING(mdb_delete)
233 ": no access to parent\n",
235 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
236 rs->sr_text = "no write access to parent";
241 Debug( LDAP_DEBUG_TRACE,
242 "<=- " LDAP_XSTRING(mdb_delete)
243 ": no parent and not root\n", 0, 0, 0 );
244 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
250 if ( get_assert( op ) &&
251 ( test_filter( op, e, get_assertion( op )) != LDAP_COMPARE_TRUE ))
253 rs->sr_err = LDAP_ASSERTION_FAILED;
257 rs->sr_err = access_allowed( op, e,
258 entry, NULL, ACL_WDEL, NULL );
261 Debug( LDAP_DEBUG_TRACE,
262 "<=- " LDAP_XSTRING(mdb_delete) ": no write access "
263 "to entry\n", 0, 0, 0 );
264 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
265 rs->sr_text = "no write access to entry";
269 if ( !manageDSAit && is_entry_referral( e ) ) {
270 /* entry is a referral, don't allow delete */
271 rs->sr_ref = get_entry_referrals( op, e );
273 Debug( LDAP_DEBUG_TRACE,
274 LDAP_XSTRING(mdb_delete) ": entry is referral\n",
277 rs->sr_err = LDAP_REFERRAL;
278 rs->sr_matched = ch_strdup( e->e_name.bv_val );
279 rs->sr_flags = REP_MATCHED_MUSTBEFREED | REP_REF_MUSTBEFREED;
284 if( op->o_preread ) {
285 if( preread_ctrl == NULL ) {
286 preread_ctrl = &ctrls[num_ctrls++];
287 ctrls[num_ctrls] = NULL;
289 if( slap_read_controls( op, rs, e,
290 &slap_pre_read_bv, preread_ctrl ) )
292 Debug( LDAP_DEBUG_TRACE,
293 "<=- " LDAP_XSTRING(mdb_delete) ": pre-read "
294 "failed!\n", 0, 0, 0 );
295 if ( op->o_preread & SLAP_CONTROL_CRITICAL ) {
296 /* FIXME: is it correct to abort
297 * operation if control fails? */
305 /* Can't do it if we have kids */
306 rs->sr_err = mdb_dn2id_children( op, txn, e );
307 if( rs->sr_err != MDB_NOTFOUND ) {
308 switch( rs->sr_err ) {
310 Debug(LDAP_DEBUG_ARGS,
311 "<=- " LDAP_XSTRING(mdb_delete)
313 op->o_req_dn.bv_val, 0, 0);
314 rs->sr_err = LDAP_NOT_ALLOWED_ON_NONLEAF;
315 rs->sr_text = "subordinate objects must be deleted first";
318 Debug(LDAP_DEBUG_ARGS,
319 "<=- " LDAP_XSTRING(mdb_delete)
320 ": has_children failed: %s (%d)\n",
321 mdb_strerror(rs->sr_err), rs->sr_err, 0 );
322 rs->sr_err = LDAP_OTHER;
323 rs->sr_text = "internal error";
328 /* delete from dn2id */
329 rs->sr_err = mdb_dn2id_delete( op, txn, p->e_id, e );
330 if ( rs->sr_err != 0 ) {
331 Debug(LDAP_DEBUG_TRACE,
332 "<=- " LDAP_XSTRING(mdb_delete) ": dn2id failed: "
333 "%s (%d)\n", mdb_strerror(rs->sr_err), rs->sr_err, 0 );
334 rs->sr_text = "DN index delete failed";
335 rs->sr_err = LDAP_OTHER;
339 /* delete indices for old attributes */
340 rs->sr_err = mdb_index_entry_del( op, txn, e );
341 if ( rs->sr_err != LDAP_SUCCESS ) {
342 Debug(LDAP_DEBUG_TRACE,
343 "<=- " LDAP_XSTRING(mdb_delete) ": index failed: "
344 "%s (%d)\n", mdb_strerror(rs->sr_err), rs->sr_err, 0 );
345 rs->sr_text = "entry index delete failed";
346 rs->sr_err = LDAP_OTHER;
350 /* fixup delete CSN */
351 if ( !SLAP_SHADOW( op->o_bd )) {
352 struct berval vals[2];
354 assert( !BER_BVISNULL( &op->o_csn ) );
356 BER_BVZERO( &vals[1] );
357 rs->sr_err = mdb_index_values( op, txn, slap_schema.si_ad_entryCSN,
358 vals, 0, SLAP_INDEX_ADD_OP );
359 if ( rs->sr_err != LDAP_SUCCESS ) {
360 rs->sr_text = "entryCSN index update failed";
361 rs->sr_err = LDAP_OTHER;
366 /* delete from id2entry */
367 rs->sr_err = mdb_id2entry_delete( op->o_bd, txn, e );
368 if ( rs->sr_err != 0 ) {
369 Debug( LDAP_DEBUG_TRACE,
370 "<=- " LDAP_XSTRING(mdb_delete) ": id2entry failed: "
371 "%s (%d)\n", mdb_strerror(rs->sr_err), rs->sr_err, 0 );
372 rs->sr_text = "entry delete failed";
373 rs->sr_err = LDAP_OTHER;
377 if ( pdn.bv_len != 0 ) {
378 parent_is_glue = is_entry_glue(p);
379 rs->sr_err = mdb_dn2id_children( op, txn, p );
380 if ( rs->sr_err != MDB_NOTFOUND ) {
381 switch( rs->sr_err ) {
385 Debug(LDAP_DEBUG_ARGS,
386 "<=- " LDAP_XSTRING(mdb_delete)
387 ": has_children failed: %s (%d)\n",
388 mdb_strerror(rs->sr_err), rs->sr_err, 0 );
389 rs->sr_err = LDAP_OTHER;
390 rs->sr_text = "internal error";
395 mdb_entry_return( op, p );
399 if( moi == &opinfo ) {
400 LDAP_SLIST_REMOVE( &op->o_extra, &opinfo.moi_oe, OpExtra, oe_next );
401 opinfo.moi_oe.oe_key = NULL;
403 mdb_txn_abort( txn );
404 rs->sr_err = LDAP_X_NO_OPERATION;
408 rs->sr_err = mdb_txn_commit( txn );
413 if( rs->sr_err != 0 ) {
414 Debug( LDAP_DEBUG_TRACE,
415 LDAP_XSTRING(mdb_delete) ": txn_%s failed: %s (%d)\n",
416 op->o_noop ? "abort (no-op)" : "commit",
417 mdb_strerror(rs->sr_err), rs->sr_err );
418 rs->sr_err = LDAP_OTHER;
419 rs->sr_text = "commit failed";
424 Debug( LDAP_DEBUG_TRACE,
425 LDAP_XSTRING(mdb_delete) ": deleted%s id=%08lx dn=\"%s\"\n",
426 op->o_noop ? " (no-op)" : "",
427 e->e_id, op->o_req_dn.bv_val );
428 rs->sr_err = LDAP_SUCCESS;
430 if( num_ctrls ) rs->sr_ctrls = ctrls;
433 if ( rs->sr_err == LDAP_SUCCESS && parent_is_glue && parent_is_leaf ) {
434 op->o_delete_glue_parent = 1;
438 mdb_entry_return( op, p );
443 mdb_entry_return( op, e );
446 if( moi == &opinfo ) {
448 mdb_txn_abort( txn );
450 if ( opinfo.moi_oe.oe_key ) {
451 LDAP_SLIST_REMOVE( &op->o_extra, &opinfo.moi_oe, OpExtra, oe_next );
455 send_ldap_result( op, rs );
456 slap_graduate_commit_csn( op );
458 if( preread_ctrl != NULL && (*preread_ctrl) != NULL ) {
459 slap_sl_free( (*preread_ctrl)->ldctl_value.bv_val, op->o_tmpmemctx );
460 slap_sl_free( *preread_ctrl, op->o_tmpmemctx );
464 if( rs->sr_err == LDAP_SUCCESS && mdb->bi_txn_cp_kbyte ) {
465 TXN_CHECKPOINT( mdb->bi_dbenv,
466 mdb->bi_txn_cp_kbyte, mdb->bi_txn_cp_min, 0 );