1 /* OpenLDAP WiredTiger backend */
3 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
5 * Copyright 2002-2017 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>.
17 * This work was developed by HAMANO Tsukasa <hamano@osstech.co.jp>
18 * based on back-bdb for inclusion in OpenLDAP Software.
19 * WiredTiger is a product of MongoDB Inc.
25 #include <ac/string.h>
31 wt_delete( Operation *op, SlapReply *rs )
33 struct wt_info *wi = (struct wt_info *) op->o_bd->be_private;
34 struct berval pdn = {0, NULL};
37 int manageDSAit = get_manageDSAit( op );
38 AttributeDescription *children = slap_schema.si_ad_children;
39 AttributeDescription *entry = slap_schema.si_ad_entry;
41 LDAPControl **preread_ctrl = NULL;
42 LDAPControl *ctrls[SLAP_MAX_RESPONSE_CONTROLS];
47 WT_CURSOR *cursor = NULL;
49 int parent_is_glue = 0;
50 int parent_is_leaf = 0;
52 Debug( LDAP_DEBUG_ARGS, "==> " LDAP_XSTRING(wt_delete) ": %s\n",
53 op->o_req_dn.bv_val, 0, 0 );
56 if( op->o_txnSpec && txn_preop( op, rs ))
63 wc = wt_ctx_get(op, wi);
65 Debug( LDAP_DEBUG_TRACE,
66 LDAP_XSTRING(wt_delete)
67 ": wt_ctx_get failed\n",
69 rs->sr_err = LDAP_OTHER;
70 rs->sr_text = "internal error";
75 if ( BER_BVISNULL( &op->o_csn ) ) {
77 char csnbuf[LDAP_PVT_CSNSTR_BUFSIZE];
80 csn.bv_len = sizeof(csnbuf);
81 slap_get_csn( op, &csn, 1 );
84 if ( !be_issuffix( op->o_bd, &op->o_req_ndn ) ) {
85 dnParent( &op->o_req_ndn, &pdn );
89 rc = wt_dn2entry(op->o_bd, wc, &pdn, &p);
95 /* TODO: error handling */
96 rs->sr_err = LDAP_OTHER;
97 rs->sr_text = "internal error";
98 Debug( LDAP_DEBUG_ANY,
99 LDAP_XSTRING(wt_delete)
100 ": error at wt_dn2entry() rc=%d\n",
105 if ( rc == WT_NOTFOUND && pdn.bv_len != 0 ) {
106 Debug( LDAP_DEBUG_ARGS,
107 "<== " LDAP_XSTRING(wt_delete) ": no such object %s\n",
108 op->o_req_dn.bv_val, 0, 0);
110 if ( p && !BER_BVISEMPTY( &p->e_name )) {
111 rs->sr_matched = ch_strdup( p->e_name.bv_val );
112 if ( is_entry_referral( p )) {
113 BerVarray ref = get_entry_referrals( op, p );
114 rs->sr_ref = referral_rewrite( ref, &p->e_name,
115 &op->o_req_dn, LDAP_SCOPE_DEFAULT );
116 ber_bvarray_free( ref );
121 rs->sr_ref = referral_rewrite( default_referral, NULL,
122 &op->o_req_dn, LDAP_SCOPE_DEFAULT );
125 rs->sr_err = LDAP_REFERRAL;
126 rs->sr_flags = REP_MATCHED_MUSTBEFREED | REP_REF_MUSTBEFREED;
131 rc = wt_dn2entry(op->o_bd, wc, &op->o_req_ndn, &e);
136 Debug( LDAP_DEBUG_ARGS,
137 "<== " LDAP_XSTRING(wt_delete)
138 ": no such object %s\n",
139 op->o_req_dn.bv_val, 0, 0);
140 rs->sr_err = LDAP_REFERRAL;
141 rs->sr_flags = REP_MATCHED_MUSTBEFREED | REP_REF_MUSTBEFREED;
144 /* TODO: error handling */
145 rs->sr_err = LDAP_OTHER;
146 rs->sr_text = "internal error";
147 Debug( LDAP_DEBUG_ANY,
148 LDAP_XSTRING(wt_delete)
149 ": error at wt_dn2entry() rc=%d\n",
154 /* FIXME : dn2entry() should return non-glue entry */
155 if ( !manageDSAit && is_entry_glue( e ) ) {
156 Debug( LDAP_DEBUG_ARGS,
157 "<== " LDAP_XSTRING(wt_delete)
159 op->o_req_dn.bv_val, 0, 0);
161 rs->sr_matched = ch_strdup( e->e_dn );
162 if ( is_entry_referral( e )) {
163 BerVarray ref = get_entry_referrals( op, e );
164 rs->sr_ref = referral_rewrite( ref, &e->e_name,
165 &op->o_req_dn, LDAP_SCOPE_DEFAULT );
166 ber_bvarray_free( ref );
171 rs->sr_err = LDAP_REFERRAL;
172 rs->sr_flags = REP_MATCHED_MUSTBEFREED | REP_REF_MUSTBEFREED;
176 if ( pdn.bv_len != 0 ) {
177 /* check parent for "children" acl */
178 rs->sr_err = access_allowed( op, p,
179 children, NULL, ACL_WDEL, NULL );
182 Debug( LDAP_DEBUG_TRACE,
183 "<== " LDAP_XSTRING(wt_delete) ": no write "
184 "access to parent\n", 0, 0, 0 );
185 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
186 rs->sr_text = "no write access to parent";
191 /* no parent, must be root to delete */
192 if( ! be_isroot( op ) ) {
193 if ( be_issuffix( op->o_bd, (struct berval *)&slap_empty_bv )
194 || be_shadow_update( op ) ) {
195 p = (Entry *)&slap_entry_root;
197 /* check parent for "children" acl */
198 rs->sr_err = access_allowed( op, p,
199 children, NULL, ACL_WDEL, NULL );
204 Debug( LDAP_DEBUG_TRACE,
205 "<== " LDAP_XSTRING(wt_delete)
206 ": no access to parent\n",
208 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
209 rs->sr_text = "no write access to parent";
214 Debug( LDAP_DEBUG_TRACE,
215 "<== " LDAP_XSTRING(wt_delete)
216 ": no parent and not root\n", 0, 0, 0 );
217 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
223 if ( get_assert( op ) &&
224 ( test_filter( op, e, get_assertion( op )) != LDAP_COMPARE_TRUE ))
226 rs->sr_err = LDAP_ASSERTION_FAILED;
230 rs->sr_err = access_allowed( op, e,
231 entry, NULL, ACL_WDEL, NULL );
233 Debug( LDAP_DEBUG_TRACE,
234 "<== " LDAP_XSTRING(wt_delete) ": no write access "
235 "to entry\n", 0, 0, 0 );
236 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
237 rs->sr_text = "no write access to entry";
241 if ( !manageDSAit && is_entry_referral( e ) ) {
242 /* entry is a referral, don't allow delete */
243 rs->sr_ref = get_entry_referrals( op, e );
245 Debug( LDAP_DEBUG_TRACE,
246 LDAP_XSTRING(tw_delete) ": entry is referral\n",
249 rs->sr_err = LDAP_REFERRAL;
250 rs->sr_matched = ch_strdup( e->e_name.bv_val );
251 rs->sr_flags = REP_MATCHED_MUSTBEFREED | REP_REF_MUSTBEFREED;
256 if( op->o_preread ) {
257 if( preread_ctrl == NULL ) {
258 preread_ctrl = &ctrls[num_ctrls++];
259 ctrls[num_ctrls] = NULL;
261 if( slap_read_controls( op, rs, e,
262 &slap_pre_read_bv, preread_ctrl ) )
264 Debug( LDAP_DEBUG_TRACE,
265 "<== " LDAP_XSTRING(wt_delete) ": pre-read "
266 "failed!\n", 0, 0, 0 );
267 if ( op->o_preread & SLAP_CONTROL_CRITICAL ) {
268 /* FIXME: is it correct to abort
269 * operation if control fails? */
275 /* Can't do it if we have kids */
276 rc = wt_dn2id_has_children( op, wc->session, e->e_id );
277 if( rc != WT_NOTFOUND ) {
280 Debug(LDAP_DEBUG_ARGS,
281 "<== " LDAP_XSTRING(wt_delete)
283 op->o_req_dn.bv_val, 0, 0);
284 rs->sr_err = LDAP_NOT_ALLOWED_ON_NONLEAF;
285 rs->sr_text = "subordinate objects must be deleted first";
288 Debug(LDAP_DEBUG_ARGS,
289 "<== " LDAP_XSTRING(wt_delete)
290 ": has_children failed: %s (%d)\n",
291 wiredtiger_strerror(rc), rc, 0 );
292 rs->sr_err = LDAP_OTHER;
293 rs->sr_text = "internal error";
298 /* begin transaction */
299 rc = wc->session->begin_transaction(wc->session, NULL);
301 Debug( LDAP_DEBUG_TRACE,
302 LDAP_XSTRING(wt_add) ": begin_transaction failed: %s (%d)\n",
303 wiredtiger_strerror(rc), rc, 0 );
304 rs->sr_err = LDAP_OTHER;
305 rs->sr_text = "begin_transaction failed";
309 /* delete from dn2id */
310 rc = wt_dn2id_delete( op, wc->session, &e->e_nname);
312 Debug(LDAP_DEBUG_TRACE,
313 "<== " LDAP_XSTRING(wt_delete)
314 ": dn2id failed: %s (%d)\n",
315 wiredtiger_strerror(rc), rc, 0 );
316 rs->sr_err = LDAP_OTHER;
317 rs->sr_text = "dn2id delete failed";
318 wc->session->rollback_transaction(wc->session, NULL);
322 /* delete indices for old attributes */
323 rc = wt_index_entry_del( op, wc, e );
325 Debug(LDAP_DEBUG_TRACE,
326 "<== " LDAP_XSTRING(wt_delete)
327 ": index delete failed: %s (%d)\n",
328 wiredtiger_strerror(rc), rc, 0 );
329 rs->sr_err = LDAP_OTHER;
330 rs->sr_text = "index delete failed";
331 wc->session->rollback_transaction(wc->session, NULL);
335 /* fixup delete CSN */
336 if ( !SLAP_SHADOW( op->o_bd )) {
337 struct berval vals[2];
339 assert( !BER_BVISNULL( &op->o_csn ) );
341 BER_BVZERO( &vals[1] );
342 rs->sr_err = wt_index_values( op, wc->session, slap_schema.si_ad_entryCSN,
343 vals, 0, SLAP_INDEX_ADD_OP );
344 if ( rs->sr_err != LDAP_SUCCESS ) {
345 rs->sr_text = "entryCSN index update failed";
346 rs->sr_err = LDAP_OTHER;
347 wc->session->rollback_transaction(wc->session, NULL);
352 /* delete from id2entry */
353 rc = wt_id2entry_delete( op, wc->session, e );
355 Debug( LDAP_DEBUG_TRACE,
356 "<== " LDAP_XSTRING(wt_delete)
357 ": id2entry failed: %s (%d)\n",
358 wiredtiger_strerror(rc), rc, 0 );
359 rs->sr_err = LDAP_OTHER;
360 rs->sr_text = "entry delete failed";
361 wc->session->rollback_transaction(wc->session, NULL);
365 if ( pdn.bv_len != 0 ) {
369 rc = wc->session->commit_transaction(wc->session, NULL);
371 Debug( LDAP_DEBUG_TRACE,
372 "<== " LDAP_XSTRING(wt_delete)
373 ": commit_transaction failed: %s (%d)\n",
374 wiredtiger_strerror(rc), rc, 0 );
375 rs->sr_err = LDAP_OTHER;
376 rs->sr_text = "commit_transaction failed";
380 Debug( LDAP_DEBUG_TRACE,
381 LDAP_XSTRING(wt_delete)
382 ": deleted%s id=%08lx dn=\"%s\"\n",
383 op->o_noop ? " (no-op)" : "", e->e_id, op->o_req_dn.bv_val );
385 rs->sr_err = LDAP_SUCCESS;
388 rs->sr_ctrls = ctrls;
392 if ( rs->sr_err == LDAP_SUCCESS && parent_is_glue && parent_is_leaf ) {
393 op->o_delete_glue_parent = 1;
397 wt_entry_return( p );
402 wt_entry_return( e );
405 send_ldap_result( op, rs );
406 slap_graduate_commit_csn( op );
408 if( preread_ctrl != NULL && (*preread_ctrl) != NULL ) {
409 slap_sl_free( (*preread_ctrl)->ldctl_value.bv_val, op->o_tmpmemctx );
410 slap_sl_free( *preread_ctrl, op->o_tmpmemctx );
413 /* TODO: checkpoint */
420 * indent-tabs-mode: t