1 /* delete.c - bdb backend delete routine */
3 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
5 * Copyright 2000-2005 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>
25 bdb_delete( Operation *op, SlapReply *rs )
27 struct bdb_info *bdb = (struct bdb_info *) op->o_bd->be_private;
28 Entry *matched = NULL;
29 struct berval pdn = {0, NULL};
32 EntryInfo *ei = NULL, *eip = NULL;
33 int manageDSAit = get_manageDSAit( op );
34 AttributeDescription *children = slap_schema.si_ad_children;
35 AttributeDescription *entry = slap_schema.si_ad_entry;
36 DB_TXN *ltid = NULL, *lt2;
37 struct bdb_op_info opinfo = {0};
51 LDAPControl **preread_ctrl = NULL;
52 LDAPControl *ctrls[SLAP_MAX_RESPONSE_CONTROLS];
55 int parent_is_glue = 0;
56 int parent_is_leaf = 0;
58 struct berval ctxcsn_ndn = BER_BVNULL;
62 Debug( LDAP_DEBUG_ARGS, "==> " LDAP_XSTRING(bdb_delete) ": %s\n",
63 op->o_req_dn.bv_val, 0, 0 );
65 build_new_dn( &ctxcsn_ndn, &op->o_bd->be_nsuffix[0],
66 (struct berval *)&slap_ldapsync_cn_bv, op->o_tmpmemctx );
69 retry: /* transaction retry */
71 bdb_unlocked_cache_return_entry_w(&bdb->bi_cache, e);
75 bdb_unlocked_cache_return_entry_r(&bdb->bi_cache, p);
78 Debug( LDAP_DEBUG_TRACE,
79 "==> " LDAP_XSTRING(bdb_delete) ": retrying...\n",
81 rs->sr_err = TXN_ABORT( ltid );
84 op->o_do_not_cache = opinfo.boi_acl_cache;
85 if( rs->sr_err != 0 ) {
86 rs->sr_err = LDAP_OTHER;
87 rs->sr_text = "internal error";
92 ldap_pvt_thread_yield();
93 bdb_trans_backoff( ++num_retries );
96 /* begin transaction */
97 rs->sr_err = TXN_BEGIN( bdb->bi_dbenv, NULL, <id,
100 if( rs->sr_err != 0 ) {
101 Debug( LDAP_DEBUG_TRACE,
102 LDAP_XSTRING(bdb_delete) ": txn_begin failed: "
103 "%s (%d)\n", db_strerror(rs->sr_err), rs->sr_err, 0 );
104 rs->sr_err = LDAP_OTHER;
105 rs->sr_text = "internal error";
109 locker = TXN_ID ( ltid );
111 opinfo.boi_bdb = op->o_bd;
112 opinfo.boi_txn = ltid;
113 opinfo.boi_locker = locker;
115 opinfo.boi_acl_cache = op->o_do_not_cache;
116 op->o_private = &opinfo;
118 if ( !be_issuffix( op->o_bd, &op->o_req_ndn ) ) {
119 dnParent( &op->o_req_ndn, &pdn );
123 rs->sr_err = bdb_dn2entry( op, ltid, &op->o_req_ndn, &ei, 1,
126 switch( rs->sr_err ) {
130 case DB_LOCK_DEADLOCK:
131 case DB_LOCK_NOTGRANTED:
134 rs->sr_text = "ldap server busy";
137 rs->sr_err = LDAP_OTHER;
138 rs->sr_text = "internal error";
142 if ( rs->sr_err == 0 ) {
144 eip = ei->bei_parent;
149 /* FIXME : dn2entry() should return non-glue entry */
150 if ( e == NULL || ( !manageDSAit && is_entry_glue( e ))) {
151 Debug( LDAP_DEBUG_ARGS,
152 "<=- " LDAP_XSTRING(bdb_delete) ": no such object %s\n",
153 op->o_req_dn.bv_val, 0, 0);
155 if ( matched != NULL ) {
156 rs->sr_matched = ch_strdup( matched->e_dn );
157 rs->sr_ref = is_entry_referral( matched )
158 ? get_entry_referrals( op, matched )
160 bdb_unlocked_cache_return_entry_r(&bdb->bi_cache, matched);
164 rs->sr_ref = referral_rewrite( default_referral, NULL,
165 &op->o_req_dn, LDAP_SCOPE_DEFAULT );
168 rs->sr_err = LDAP_REFERRAL;
169 send_ldap_result( op, rs );
171 if ( rs->sr_ref != default_referral ) {
172 ber_bvarray_free( rs->sr_ref );
174 free( (char *)rs->sr_matched );
176 rs->sr_matched = NULL;
182 rc = bdb_cache_find_id( op, ltid, eip->bei_id, &eip, 0, locker, &plock );
184 case DB_LOCK_DEADLOCK:
185 case DB_LOCK_NOTGRANTED:
191 rs->sr_err = LDAP_OTHER;
192 rs->sr_text = "internal error";
195 if ( eip ) p = eip->bei_e;
197 if ( pdn.bv_len != 0 ) {
198 if( p == NULL || !bvmatch( &pdn, &p->e_nname )) {
199 Debug( LDAP_DEBUG_TRACE,
200 "<=- " LDAP_XSTRING(bdb_delete) ": parent "
201 "does not exist\n", 0, 0, 0 );
202 rs->sr_err = LDAP_OTHER;
203 rs->sr_text = "could not locate parent of entry";
207 /* check parent for "children" acl */
208 rs->sr_err = access_allowed( op, p,
209 children, NULL, ACL_WRITE, NULL );
212 switch( opinfo.boi_err ) {
213 case DB_LOCK_DEADLOCK:
214 case DB_LOCK_NOTGRANTED:
218 Debug( LDAP_DEBUG_TRACE,
219 "<=- " LDAP_XSTRING(bdb_delete) ": no write "
220 "access to parent\n", 0, 0, 0 );
221 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
222 rs->sr_text = "no write access to parent";
227 /* no parent, must be root to delete */
228 if( ! be_isroot( op ) ) {
229 if ( be_issuffix( op->o_bd, (struct berval *)&slap_empty_bv )
230 || be_shadow_update( op ) ) {
231 p = (Entry *)&slap_entry_root;
233 /* check parent for "children" acl */
234 rs->sr_err = access_allowed( op, p,
235 children, NULL, ACL_WRITE, NULL );
240 switch( opinfo.boi_err ) {
241 case DB_LOCK_DEADLOCK:
242 case DB_LOCK_NOTGRANTED:
246 Debug( LDAP_DEBUG_TRACE,
247 "<=- " LDAP_XSTRING(bdb_delete)
248 ": no access to parent\n",
250 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
251 rs->sr_text = "no write access to parent";
256 Debug( LDAP_DEBUG_TRACE,
257 "<=- " LDAP_XSTRING(bdb_delete)
258 ": no parent and not root\n", 0, 0, 0 );
259 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
265 if ( get_assert( op ) &&
266 ( test_filter( op, e, get_assertion( op )) != LDAP_COMPARE_TRUE ))
268 rs->sr_err = LDAP_ASSERTION_FAILED;
272 rs->sr_err = access_allowed( op, e,
273 entry, NULL, ACL_WRITE, NULL );
276 switch( opinfo.boi_err ) {
277 case DB_LOCK_DEADLOCK:
278 case DB_LOCK_NOTGRANTED:
282 Debug( LDAP_DEBUG_TRACE,
283 "<=- " LDAP_XSTRING(bdb_delete) ": no write access "
284 "to entry\n", 0, 0, 0 );
285 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
286 rs->sr_text = "no write access to entry";
290 if ( !manageDSAit && is_entry_referral( e ) ) {
291 /* entry is a referral, don't allow delete */
292 rs->sr_ref = get_entry_referrals( op, e );
294 Debug( LDAP_DEBUG_TRACE,
295 LDAP_XSTRING(bdb_delete) ": entry is referral\n",
298 rs->sr_err = LDAP_REFERRAL;
299 rs->sr_matched = e->e_name.bv_val;
300 send_ldap_result( op, rs );
302 ber_bvarray_free( rs->sr_ref );
304 rs->sr_matched = NULL;
311 if( op->o_preread ) {
312 if( preread_ctrl == NULL ) {
313 preread_ctrl = &ctrls[num_ctrls++];
314 ctrls[num_ctrls] = NULL;
316 if( slap_read_controls( op, rs, e,
317 &slap_pre_read_bv, preread_ctrl ) )
319 Debug( LDAP_DEBUG_TRACE,
320 "<=- " LDAP_XSTRING(bdb_delete) ": pre-read "
321 "failed!\n", 0, 0, 0 );
326 /* nested transaction */
327 rs->sr_err = TXN_BEGIN( bdb->bi_dbenv, ltid, <2,
328 bdb->bi_db_opflags );
330 if( rs->sr_err != 0 ) {
331 Debug( LDAP_DEBUG_TRACE,
332 LDAP_XSTRING(bdb_delete) ": txn_begin(2) failed: "
333 "%s (%d)\n", db_strerror(rs->sr_err), rs->sr_err, 0 );
334 rs->sr_err = LDAP_OTHER;
335 rs->sr_text = "internal error";
339 /* Can't do it if we have kids */
340 rs->sr_err = bdb_cache_children( op, lt2, e );
341 if( rs->sr_err != DB_NOTFOUND ) {
342 switch( rs->sr_err ) {
343 case DB_LOCK_DEADLOCK:
344 case DB_LOCK_NOTGRANTED:
347 Debug(LDAP_DEBUG_ARGS,
348 "<=- " LDAP_XSTRING(bdb_delete)
350 op->o_req_dn.bv_val, 0, 0);
351 rs->sr_err = LDAP_NOT_ALLOWED_ON_NONLEAF;
352 rs->sr_text = "subtree delete not supported";
355 Debug(LDAP_DEBUG_ARGS,
356 "<=- " LDAP_XSTRING(bdb_delete)
357 ": has_children failed: %s (%d)\n",
358 db_strerror(rs->sr_err), rs->sr_err, 0 );
359 rs->sr_err = LDAP_OTHER;
360 rs->sr_text = "internal error";
365 /* delete from dn2id */
366 rs->sr_err = bdb_dn2id_delete( op, lt2, eip, e );
367 if ( rs->sr_err != 0 ) {
368 Debug(LDAP_DEBUG_TRACE,
369 "<=- " LDAP_XSTRING(bdb_delete) ": dn2id failed: "
370 "%s (%d)\n", db_strerror(rs->sr_err), rs->sr_err, 0 );
371 switch( rs->sr_err ) {
372 case DB_LOCK_DEADLOCK:
373 case DB_LOCK_NOTGRANTED:
376 rs->sr_text = "DN index delete failed";
377 rs->sr_err = LDAP_OTHER;
381 /* delete from id2entry */
382 rs->sr_err = bdb_id2entry_delete( op->o_bd, lt2, e );
383 if ( rs->sr_err != 0 ) {
384 Debug(LDAP_DEBUG_TRACE,
385 "<=- " LDAP_XSTRING(bdb_delete) ": id2entry failed: "
386 "%s (%d)\n", db_strerror(rs->sr_err), rs->sr_err, 0 );
387 switch( rs->sr_err ) {
388 case DB_LOCK_DEADLOCK:
389 case DB_LOCK_NOTGRANTED:
392 rs->sr_text = "entry delete failed";
393 rs->sr_err = LDAP_OTHER;
397 /* delete indices for old attributes */
398 rs->sr_err = bdb_index_entry_del( op, lt2, e );
399 if ( rs->sr_err != LDAP_SUCCESS ) {
400 Debug( LDAP_DEBUG_TRACE,
401 "<=- " LDAP_XSTRING(bdb_delete) ": index failed: "
402 "%s (%d)\n", db_strerror(rs->sr_err), rs->sr_err, 0 );
403 switch( rs->sr_err ) {
404 case DB_LOCK_DEADLOCK:
405 case DB_LOCK_NOTGRANTED:
408 rs->sr_text = "entry index delete failed";
409 rs->sr_err = LDAP_OTHER;
413 if ( pdn.bv_len != 0 ) {
414 parent_is_glue = is_entry_glue(p);
415 rs->sr_err = bdb_cache_children( op, lt2, p );
416 if ( rs->sr_err != DB_NOTFOUND ) {
417 switch( rs->sr_err ) {
418 case DB_LOCK_DEADLOCK:
419 case DB_LOCK_NOTGRANTED:
424 Debug(LDAP_DEBUG_ARGS,
425 "<=- " LDAP_XSTRING(bdb_delete)
426 ": has_children failed: %s (%d)\n",
427 db_strerror(rs->sr_err), rs->sr_err, 0 );
428 rs->sr_err = LDAP_OTHER;
429 rs->sr_text = "internal error";
434 bdb_unlocked_cache_return_entry_r(&bdb->bi_cache, p);
438 if ( TXN_COMMIT( lt2, 0 ) != 0 ) {
439 rs->sr_err = LDAP_OTHER;
440 rs->sr_text = "txn_commit(2) failed";
446 #if 0 /* Do we want to reclaim deleted IDs? */
447 ldap_pvt_thread_mutex_lock( &bdb->bi_lastid_mutex );
448 if ( e->e_id == bdb->bi_lastid ) {
449 bdb_last_id( op->o_bd, ltid );
451 ldap_pvt_thread_mutex_unlock( &bdb->bi_lastid_mutex );
455 if ( ( rs->sr_err = TXN_ABORT( ltid ) ) != 0 ) {
456 rs->sr_text = "txn_abort (no-op) failed";
458 rs->sr_err = LDAP_NO_OPERATION;
462 rc = bdb_cache_delete( &bdb->bi_cache, e, bdb->bi_dbenv,
465 case DB_LOCK_DEADLOCK:
466 case DB_LOCK_NOTGRANTED:
470 rs->sr_err = TXN_COMMIT( ltid, 0 );
473 op->o_private = NULL;
475 if( rs->sr_err != 0 ) {
476 Debug( LDAP_DEBUG_TRACE,
477 LDAP_XSTRING(bdb_delete) ": txn_%s failed: %s (%d)\n",
478 op->o_noop ? "abort (no-op)" : "commit",
479 db_strerror(rs->sr_err), rs->sr_err );
480 rs->sr_err = LDAP_OTHER;
481 rs->sr_text = "commit failed";
486 Debug( LDAP_DEBUG_TRACE,
487 LDAP_XSTRING(bdb_delete) ": deleted%s id=%08lx dn=\"%s\"\n",
488 op->o_noop ? " (no-op)" : "",
489 eid, op->o_req_dn.bv_val );
490 rs->sr_err = LDAP_SUCCESS;
492 if( num_ctrls ) rs->sr_ctrls = ctrls;
495 send_ldap_result( op, rs );
497 if( rs->sr_err == LDAP_SUCCESS && bdb->bi_txn_cp ) {
498 ldap_pvt_thread_yield();
499 TXN_CHECKPOINT( bdb->bi_dbenv,
500 bdb->bi_txn_cp_kbyte, bdb->bi_txn_cp_min, 0 );
503 if ( rs->sr_err == LDAP_SUCCESS && parent_is_glue && parent_is_leaf ) {
504 op->o_delete_glue_parent = 1;
509 bdb_unlocked_cache_return_entry_r(&bdb->bi_cache, p);
513 if ( rs->sr_err == LDAP_SUCCESS ) {
514 /* Free the EntryInfo and the Entry */
515 bdb_cache_delete_cleanup( &bdb->bi_cache, BEI(e) );
517 bdb_unlocked_cache_return_entry_w(&bdb->bi_cache, e);
523 op->o_private = NULL;
526 slap_sl_free( ctxcsn_ndn.bv_val, op->o_tmpmemctx );
528 if( preread_ctrl != NULL ) {
529 slap_sl_free( (*preread_ctrl)->ldctl_value.bv_val, op->o_tmpmemctx );
530 slap_sl_free( *preread_ctrl, op->o_tmpmemctx );