1 /* delete.c - mdb backend delete routine */
3 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
5 * Copyright 2000-2015 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;
46 Debug( LDAP_DEBUG_ARGS, "==> " LDAP_XSTRING(mdb_delete) ": %s\n",
47 op->o_req_dn.bv_val, 0, 0 );
50 if( op->o_txnSpec && txn_preop( op, rs ))
56 /* begin transaction */
57 rs->sr_err = mdb_opinfo_get( op, mdb, 0, &moi );
59 if( rs->sr_err != 0 ) {
60 Debug( LDAP_DEBUG_TRACE,
61 LDAP_XSTRING(mdb_delete) ": txn_begin failed: "
62 "%s (%d)\n", mdb_strerror(rs->sr_err), rs->sr_err, 0 );
63 rs->sr_err = LDAP_OTHER;
64 rs->sr_text = "internal error";
70 if ( BER_BVISNULL( &op->o_csn ) ) {
72 char csnbuf[LDAP_PVT_CSNSTR_BUFSIZE];
75 csn.bv_len = sizeof(csnbuf);
76 slap_get_csn( op, &csn, 1 );
79 if ( !be_issuffix( op->o_bd, &op->o_req_ndn ) ) {
80 dnParent( &op->o_req_ndn, &pdn );
83 rs->sr_err = mdb_cursor_open( txn, mdb->mi_dn2id, &mc );
85 rs->sr_err = LDAP_OTHER;
86 rs->sr_text = "internal error";
90 rs->sr_err = mdb_dn2entry( op, txn, mc, &pdn, &p, NULL, 1 );
91 switch( rs->sr_err ) {
96 rs->sr_text = "ldap server busy";
99 rs->sr_err = LDAP_OTHER;
100 rs->sr_text = "internal error";
103 if ( rs->sr_err == MDB_NOTFOUND ) {
104 Debug( LDAP_DEBUG_ARGS,
105 "<=- " LDAP_XSTRING(mdb_delete) ": no such object %s\n",
106 op->o_req_dn.bv_val, 0, 0);
108 if ( p && !BER_BVISEMPTY( &p->e_name )) {
109 rs->sr_matched = ch_strdup( p->e_name.bv_val );
110 if ( is_entry_referral( p )) {
111 BerVarray ref = get_entry_referrals( op, p );
112 rs->sr_ref = referral_rewrite( ref, &p->e_name,
113 &op->o_req_dn, LDAP_SCOPE_DEFAULT );
114 ber_bvarray_free( ref );
119 rs->sr_ref = referral_rewrite( default_referral, NULL,
120 &op->o_req_dn, LDAP_SCOPE_DEFAULT );
123 mdb_entry_return( op, p );
127 rs->sr_err = LDAP_REFERRAL;
128 rs->sr_flags = REP_MATCHED_MUSTBEFREED | REP_REF_MUSTBEFREED;
133 rs->sr_err = mdb_dn2entry( op, txn, mc, &op->o_req_ndn, &e, NULL, 0 );
134 switch( rs->sr_err ) {
141 rs->sr_text = "ldap server busy";
144 rs->sr_err = LDAP_OTHER;
145 rs->sr_text = "internal error";
149 /* FIXME : dn2entry() should return non-glue entry */
150 if ( rs->sr_err == MDB_NOTFOUND || ( !manageDSAit && is_entry_glue( e ))) {
151 Debug( LDAP_DEBUG_ARGS,
152 "<=- " LDAP_XSTRING(mdb_delete) ": no such object %s\n",
153 op->o_req_dn.bv_val, 0, 0);
155 rs->sr_matched = ch_strdup( e->e_dn );
156 if ( is_entry_referral( e )) {
157 BerVarray ref = get_entry_referrals( op, e );
158 rs->sr_ref = referral_rewrite( ref, &e->e_name,
159 &op->o_req_dn, LDAP_SCOPE_DEFAULT );
160 ber_bvarray_free( ref );
164 mdb_entry_return( op, e );
167 rs->sr_err = LDAP_REFERRAL;
168 rs->sr_flags = REP_MATCHED_MUSTBEFREED | REP_REF_MUSTBEFREED;
172 if ( pdn.bv_len != 0 ) {
173 /* check parent for "children" acl */
174 rs->sr_err = access_allowed( op, p,
175 children, NULL, ACL_WDEL, NULL );
178 Debug( LDAP_DEBUG_TRACE,
179 "<=- " LDAP_XSTRING(mdb_delete) ": no write "
180 "access to parent\n", 0, 0, 0 );
181 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
182 rs->sr_text = "no write access to parent";
187 /* no parent, must be root to delete */
188 if( ! be_isroot( op ) ) {
189 if ( be_issuffix( op->o_bd, (struct berval *)&slap_empty_bv )
190 || be_shadow_update( op ) ) {
191 p = (Entry *)&slap_entry_root;
193 /* check parent for "children" acl */
194 rs->sr_err = access_allowed( op, p,
195 children, NULL, ACL_WDEL, NULL );
200 Debug( LDAP_DEBUG_TRACE,
201 "<=- " LDAP_XSTRING(mdb_delete)
202 ": no access to parent\n",
204 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
205 rs->sr_text = "no write access to parent";
210 Debug( LDAP_DEBUG_TRACE,
211 "<=- " LDAP_XSTRING(mdb_delete)
212 ": no parent and not root\n", 0, 0, 0 );
213 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
219 if ( get_assert( op ) &&
220 ( test_filter( op, e, get_assertion( op )) != LDAP_COMPARE_TRUE ))
222 rs->sr_err = LDAP_ASSERTION_FAILED;
226 rs->sr_err = access_allowed( op, e,
227 entry, NULL, ACL_WDEL, NULL );
230 Debug( LDAP_DEBUG_TRACE,
231 "<=- " LDAP_XSTRING(mdb_delete) ": no write access "
232 "to entry\n", 0, 0, 0 );
233 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
234 rs->sr_text = "no write access to entry";
238 if ( !manageDSAit && is_entry_referral( e ) ) {
239 /* entry is a referral, don't allow delete */
240 rs->sr_ref = get_entry_referrals( op, e );
242 Debug( LDAP_DEBUG_TRACE,
243 LDAP_XSTRING(mdb_delete) ": entry is referral\n",
246 rs->sr_err = LDAP_REFERRAL;
247 rs->sr_matched = ch_strdup( e->e_name.bv_val );
248 rs->sr_flags = REP_MATCHED_MUSTBEFREED | REP_REF_MUSTBEFREED;
253 if( op->o_preread ) {
254 if( preread_ctrl == NULL ) {
255 preread_ctrl = &ctrls[num_ctrls++];
256 ctrls[num_ctrls] = NULL;
258 if( slap_read_controls( op, rs, e,
259 &slap_pre_read_bv, preread_ctrl ) )
261 Debug( LDAP_DEBUG_TRACE,
262 "<=- " LDAP_XSTRING(mdb_delete) ": pre-read "
263 "failed!\n", 0, 0, 0 );
264 if ( op->o_preread & SLAP_CONTROL_CRITICAL ) {
265 /* FIXME: is it correct to abort
266 * operation if control fails? */
274 /* Can't do it if we have kids */
275 rs->sr_err = mdb_dn2id_children( op, txn, e );
276 if( rs->sr_err != MDB_NOTFOUND ) {
277 switch( rs->sr_err ) {
279 Debug(LDAP_DEBUG_ARGS,
280 "<=- " LDAP_XSTRING(mdb_delete)
282 op->o_req_dn.bv_val, 0, 0);
283 rs->sr_err = LDAP_NOT_ALLOWED_ON_NONLEAF;
284 rs->sr_text = "subordinate objects must be deleted first";
287 Debug(LDAP_DEBUG_ARGS,
288 "<=- " LDAP_XSTRING(mdb_delete)
289 ": has_children failed: %s (%d)\n",
290 mdb_strerror(rs->sr_err), rs->sr_err, 0 );
291 rs->sr_err = LDAP_OTHER;
292 rs->sr_text = "internal error";
297 /* delete from dn2id */
298 rs->sr_err = mdb_dn2id_delete( op, mc, e->e_id, 1 );
299 mdb_cursor_close( mc );
300 if ( rs->sr_err != 0 ) {
301 Debug(LDAP_DEBUG_TRACE,
302 "<=- " LDAP_XSTRING(mdb_delete) ": dn2id failed: "
303 "%s (%d)\n", mdb_strerror(rs->sr_err), rs->sr_err, 0 );
304 rs->sr_text = "DN index delete failed";
305 rs->sr_err = LDAP_OTHER;
309 /* delete indices for old attributes */
310 rs->sr_err = mdb_index_entry_del( op, txn, e );
311 if ( rs->sr_err != LDAP_SUCCESS ) {
312 Debug(LDAP_DEBUG_TRACE,
313 "<=- " LDAP_XSTRING(mdb_delete) ": index failed: "
314 "%s (%d)\n", mdb_strerror(rs->sr_err), rs->sr_err, 0 );
315 rs->sr_text = "entry index delete failed";
316 rs->sr_err = LDAP_OTHER;
320 /* fixup delete CSN */
321 if ( !SLAP_SHADOW( op->o_bd )) {
322 struct berval vals[2];
324 assert( !BER_BVISNULL( &op->o_csn ) );
326 BER_BVZERO( &vals[1] );
327 rs->sr_err = mdb_index_values( op, txn, slap_schema.si_ad_entryCSN,
328 vals, 0, SLAP_INDEX_ADD_OP );
329 if ( rs->sr_err != LDAP_SUCCESS ) {
330 rs->sr_text = "entryCSN index update failed";
331 rs->sr_err = LDAP_OTHER;
336 /* delete from id2entry */
337 rs->sr_err = mdb_id2entry_delete( op->o_bd, txn, e );
338 if ( rs->sr_err != 0 ) {
339 Debug( LDAP_DEBUG_TRACE,
340 "<=- " LDAP_XSTRING(mdb_delete) ": id2entry failed: "
341 "%s (%d)\n", mdb_strerror(rs->sr_err), rs->sr_err, 0 );
342 rs->sr_text = "entry delete failed";
343 rs->sr_err = LDAP_OTHER;
347 if ( pdn.bv_len != 0 ) {
348 parent_is_glue = is_entry_glue(p);
349 rs->sr_err = mdb_dn2id_children( op, txn, p );
350 if ( rs->sr_err != MDB_NOTFOUND ) {
351 switch( rs->sr_err ) {
355 Debug(LDAP_DEBUG_ARGS,
356 "<=- " LDAP_XSTRING(mdb_delete)
357 ": has_children failed: %s (%d)\n",
358 mdb_strerror(rs->sr_err), rs->sr_err, 0 );
359 rs->sr_err = LDAP_OTHER;
360 rs->sr_text = "internal error";
365 mdb_entry_return( op, p );
369 if( moi == &opinfo ) {
370 LDAP_SLIST_REMOVE( &op->o_extra, &opinfo.moi_oe, OpExtra, oe_next );
371 opinfo.moi_oe.oe_key = NULL;
373 mdb_txn_abort( txn );
374 rs->sr_err = LDAP_X_NO_OPERATION;
378 rs->sr_err = mdb_txn_commit( txn );
383 if( rs->sr_err != 0 ) {
384 Debug( LDAP_DEBUG_ANY,
385 LDAP_XSTRING(mdb_delete) ": txn_%s failed: %s (%d)\n",
386 op->o_noop ? "abort (no-op)" : "commit",
387 mdb_strerror(rs->sr_err), rs->sr_err );
388 rs->sr_err = LDAP_OTHER;
389 rs->sr_text = "commit failed";
394 Debug( LDAP_DEBUG_TRACE,
395 LDAP_XSTRING(mdb_delete) ": deleted%s id=%08lx dn=\"%s\"\n",
396 op->o_noop ? " (no-op)" : "",
397 e->e_id, op->o_req_dn.bv_val );
398 rs->sr_err = LDAP_SUCCESS;
400 if( num_ctrls ) rs->sr_ctrls = ctrls;
403 if ( rs->sr_err == LDAP_SUCCESS && parent_is_glue && parent_is_leaf ) {
404 op->o_delete_glue_parent = 1;
408 mdb_entry_return( op, p );
413 mdb_entry_return( op, e );
416 if( moi == &opinfo ) {
418 mdb_txn_abort( txn );
420 if ( opinfo.moi_oe.oe_key ) {
421 LDAP_SLIST_REMOVE( &op->o_extra, &opinfo.moi_oe, OpExtra, oe_next );
427 send_ldap_result( op, rs );
428 slap_graduate_commit_csn( op );
430 if( preread_ctrl != NULL && (*preread_ctrl) != NULL ) {
431 slap_sl_free( (*preread_ctrl)->ldctl_value.bv_val, op->o_tmpmemctx );
432 slap_sl_free( *preread_ctrl, op->o_tmpmemctx );
436 if( rs->sr_err == LDAP_SUCCESS && mdb->bi_txn_cp_kbyte ) {
437 TXN_CHECKPOINT( mdb->bi_dbenv,
438 mdb->bi_txn_cp_kbyte, mdb->bi_txn_cp_min, 0 );