1 /* delete.c - mdb backend delete routine */
3 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
5 * Copyright 2000-2013 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 );
93 /* begin transaction */
94 rs->sr_err = mdb_opinfo_get( op, mdb, 0, &moi );
96 if( rs->sr_err != 0 ) {
97 Debug( LDAP_DEBUG_TRACE,
98 LDAP_XSTRING(mdb_delete) ": txn_begin failed: "
99 "%s (%d)\n", mdb_strerror(rs->sr_err), rs->sr_err, 0 );
100 rs->sr_err = LDAP_OTHER;
101 rs->sr_text = "internal error";
107 if ( BER_BVISNULL( &op->o_csn ) ) {
109 char csnbuf[LDAP_PVT_CSNSTR_BUFSIZE];
112 csn.bv_len = sizeof(csnbuf);
113 slap_get_csn( op, &csn, 1 );
116 if ( !be_issuffix( op->o_bd, &op->o_req_ndn ) ) {
117 dnParent( &op->o_req_ndn, &pdn );
120 rs->sr_err = mdb_cursor_open( txn, mdb->mi_dn2id, &mc );
122 rs->sr_err = LDAP_OTHER;
123 rs->sr_text = "internal error";
127 rs->sr_err = mdb_dn2entry( op, txn, mc, &pdn, &p, NULL, 1 );
128 switch( rs->sr_err ) {
133 rs->sr_text = "ldap server busy";
136 rs->sr_err = LDAP_OTHER;
137 rs->sr_text = "internal error";
140 if ( rs->sr_err == MDB_NOTFOUND ) {
141 Debug( LDAP_DEBUG_ARGS,
142 "<=- " LDAP_XSTRING(mdb_delete) ": no such object %s\n",
143 op->o_req_dn.bv_val, 0, 0);
145 if ( p && !BER_BVISEMPTY( &p->e_name )) {
146 rs->sr_matched = ch_strdup( p->e_name.bv_val );
147 if ( is_entry_referral( p )) {
148 BerVarray ref = get_entry_referrals( op, p );
149 rs->sr_ref = referral_rewrite( ref, &p->e_name,
150 &op->o_req_dn, LDAP_SCOPE_DEFAULT );
151 ber_bvarray_free( ref );
156 rs->sr_ref = referral_rewrite( default_referral, NULL,
157 &op->o_req_dn, LDAP_SCOPE_DEFAULT );
160 mdb_entry_return( op, p );
164 rs->sr_err = LDAP_REFERRAL;
165 rs->sr_flags = REP_MATCHED_MUSTBEFREED | REP_REF_MUSTBEFREED;
170 rs->sr_err = mdb_dn2entry( op, txn, mc, &op->o_req_ndn, &e, NULL, 0 );
171 switch( rs->sr_err ) {
178 rs->sr_text = "ldap server busy";
181 rs->sr_err = LDAP_OTHER;
182 rs->sr_text = "internal error";
186 /* FIXME : dn2entry() should return non-glue entry */
187 if ( rs->sr_err == MDB_NOTFOUND || ( !manageDSAit && is_entry_glue( e ))) {
188 Debug( LDAP_DEBUG_ARGS,
189 "<=- " LDAP_XSTRING(mdb_delete) ": no such object %s\n",
190 op->o_req_dn.bv_val, 0, 0);
192 rs->sr_matched = ch_strdup( e->e_dn );
193 if ( is_entry_referral( e )) {
194 BerVarray ref = get_entry_referrals( op, e );
195 rs->sr_ref = referral_rewrite( ref, &e->e_name,
196 &op->o_req_dn, LDAP_SCOPE_DEFAULT );
197 ber_bvarray_free( ref );
201 mdb_entry_return( op, e );
204 rs->sr_err = LDAP_REFERRAL;
205 rs->sr_flags = REP_MATCHED_MUSTBEFREED | REP_REF_MUSTBEFREED;
209 if ( pdn.bv_len != 0 ) {
210 /* check parent for "children" acl */
211 rs->sr_err = access_allowed( op, p,
212 children, NULL, ACL_WDEL, NULL );
215 Debug( LDAP_DEBUG_TRACE,
216 "<=- " LDAP_XSTRING(mdb_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 Debug( LDAP_DEBUG_TRACE,
238 "<=- " LDAP_XSTRING(mdb_delete)
239 ": no access to parent\n",
241 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
242 rs->sr_text = "no write access to parent";
247 Debug( LDAP_DEBUG_TRACE,
248 "<=- " LDAP_XSTRING(mdb_delete)
249 ": no parent and not root\n", 0, 0, 0 );
250 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
256 if ( get_assert( op ) &&
257 ( test_filter( op, e, get_assertion( op )) != LDAP_COMPARE_TRUE ))
259 rs->sr_err = LDAP_ASSERTION_FAILED;
263 rs->sr_err = access_allowed( op, e,
264 entry, NULL, ACL_WDEL, NULL );
267 Debug( LDAP_DEBUG_TRACE,
268 "<=- " LDAP_XSTRING(mdb_delete) ": no write access "
269 "to entry\n", 0, 0, 0 );
270 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
271 rs->sr_text = "no write access to entry";
275 if ( !manageDSAit && is_entry_referral( e ) ) {
276 /* entry is a referral, don't allow delete */
277 rs->sr_ref = get_entry_referrals( op, e );
279 Debug( LDAP_DEBUG_TRACE,
280 LDAP_XSTRING(mdb_delete) ": entry is referral\n",
283 rs->sr_err = LDAP_REFERRAL;
284 rs->sr_matched = ch_strdup( e->e_name.bv_val );
285 rs->sr_flags = REP_MATCHED_MUSTBEFREED | REP_REF_MUSTBEFREED;
290 if( op->o_preread ) {
291 if( preread_ctrl == NULL ) {
292 preread_ctrl = &ctrls[num_ctrls++];
293 ctrls[num_ctrls] = NULL;
295 if( slap_read_controls( op, rs, e,
296 &slap_pre_read_bv, preread_ctrl ) )
298 Debug( LDAP_DEBUG_TRACE,
299 "<=- " LDAP_XSTRING(mdb_delete) ": pre-read "
300 "failed!\n", 0, 0, 0 );
301 if ( op->o_preread & SLAP_CONTROL_CRITICAL ) {
302 /* FIXME: is it correct to abort
303 * operation if control fails? */
311 /* Can't do it if we have kids */
312 rs->sr_err = mdb_dn2id_children( op, txn, e );
313 if( rs->sr_err != MDB_NOTFOUND ) {
314 switch( rs->sr_err ) {
316 Debug(LDAP_DEBUG_ARGS,
317 "<=- " LDAP_XSTRING(mdb_delete)
319 op->o_req_dn.bv_val, 0, 0);
320 rs->sr_err = LDAP_NOT_ALLOWED_ON_NONLEAF;
321 rs->sr_text = "subordinate objects must be deleted first";
324 Debug(LDAP_DEBUG_ARGS,
325 "<=- " LDAP_XSTRING(mdb_delete)
326 ": has_children failed: %s (%d)\n",
327 mdb_strerror(rs->sr_err), rs->sr_err, 0 );
328 rs->sr_err = LDAP_OTHER;
329 rs->sr_text = "internal error";
334 /* delete from dn2id */
335 rs->sr_err = mdb_dn2id_delete( op, mc, e->e_id, 1 );
336 mdb_cursor_close( mc );
337 if ( rs->sr_err != 0 ) {
338 Debug(LDAP_DEBUG_TRACE,
339 "<=- " LDAP_XSTRING(mdb_delete) ": dn2id failed: "
340 "%s (%d)\n", mdb_strerror(rs->sr_err), rs->sr_err, 0 );
341 rs->sr_text = "DN index delete failed";
342 rs->sr_err = LDAP_OTHER;
346 /* delete indices for old attributes */
347 rs->sr_err = mdb_index_entry_del( op, txn, e );
348 if ( rs->sr_err != LDAP_SUCCESS ) {
349 Debug(LDAP_DEBUG_TRACE,
350 "<=- " LDAP_XSTRING(mdb_delete) ": index failed: "
351 "%s (%d)\n", mdb_strerror(rs->sr_err), rs->sr_err, 0 );
352 rs->sr_text = "entry index delete failed";
353 rs->sr_err = LDAP_OTHER;
357 /* fixup delete CSN */
358 if ( !SLAP_SHADOW( op->o_bd )) {
359 struct berval vals[2];
361 assert( !BER_BVISNULL( &op->o_csn ) );
363 BER_BVZERO( &vals[1] );
364 rs->sr_err = mdb_index_values( op, txn, slap_schema.si_ad_entryCSN,
365 vals, 0, SLAP_INDEX_ADD_OP );
366 if ( rs->sr_err != LDAP_SUCCESS ) {
367 rs->sr_text = "entryCSN index update failed";
368 rs->sr_err = LDAP_OTHER;
373 /* delete from id2entry */
374 rs->sr_err = mdb_id2entry_delete( op->o_bd, txn, e );
375 if ( rs->sr_err != 0 ) {
376 Debug( LDAP_DEBUG_TRACE,
377 "<=- " LDAP_XSTRING(mdb_delete) ": id2entry failed: "
378 "%s (%d)\n", mdb_strerror(rs->sr_err), rs->sr_err, 0 );
379 rs->sr_text = "entry delete failed";
380 rs->sr_err = LDAP_OTHER;
384 if ( pdn.bv_len != 0 ) {
385 parent_is_glue = is_entry_glue(p);
386 rs->sr_err = mdb_dn2id_children( op, txn, p );
387 if ( rs->sr_err != MDB_NOTFOUND ) {
388 switch( rs->sr_err ) {
392 Debug(LDAP_DEBUG_ARGS,
393 "<=- " LDAP_XSTRING(mdb_delete)
394 ": has_children failed: %s (%d)\n",
395 mdb_strerror(rs->sr_err), rs->sr_err, 0 );
396 rs->sr_err = LDAP_OTHER;
397 rs->sr_text = "internal error";
402 mdb_entry_return( op, p );
406 if( moi == &opinfo ) {
407 LDAP_SLIST_REMOVE( &op->o_extra, &opinfo.moi_oe, OpExtra, oe_next );
408 opinfo.moi_oe.oe_key = NULL;
410 mdb_txn_abort( txn );
411 rs->sr_err = LDAP_X_NO_OPERATION;
415 rs->sr_err = mdb_txn_commit( txn );
420 if( rs->sr_err != 0 ) {
421 Debug( LDAP_DEBUG_ANY,
422 LDAP_XSTRING(mdb_delete) ": txn_%s failed: %s (%d)\n",
423 op->o_noop ? "abort (no-op)" : "commit",
424 mdb_strerror(rs->sr_err), rs->sr_err );
425 rs->sr_err = LDAP_OTHER;
426 rs->sr_text = "commit failed";
431 Debug( LDAP_DEBUG_TRACE,
432 LDAP_XSTRING(mdb_delete) ": deleted%s id=%08lx dn=\"%s\"\n",
433 op->o_noop ? " (no-op)" : "",
434 e->e_id, op->o_req_dn.bv_val );
435 rs->sr_err = LDAP_SUCCESS;
437 if( num_ctrls ) rs->sr_ctrls = ctrls;
440 if ( rs->sr_err == LDAP_SUCCESS && parent_is_glue && parent_is_leaf ) {
441 op->o_delete_glue_parent = 1;
445 mdb_entry_return( op, p );
450 mdb_entry_return( op, e );
453 if( moi == &opinfo ) {
455 mdb_txn_abort( txn );
457 if ( opinfo.moi_oe.oe_key ) {
458 LDAP_SLIST_REMOVE( &op->o_extra, &opinfo.moi_oe, OpExtra, oe_next );
464 send_ldap_result( op, rs );
465 slap_graduate_commit_csn( op );
467 if( preread_ctrl != NULL && (*preread_ctrl) != NULL ) {
468 slap_sl_free( (*preread_ctrl)->ldctl_value.bv_val, op->o_tmpmemctx );
469 slap_sl_free( *preread_ctrl, op->o_tmpmemctx );
473 if( rs->sr_err == LDAP_SUCCESS && mdb->bi_txn_cp_kbyte ) {
474 TXN_CHECKPOINT( mdb->bi_dbenv,
475 mdb->bi_txn_cp_kbyte, mdb->bi_txn_cp_min, 0 );