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};
47 LDAPControl **preread_ctrl = NULL;
48 LDAPControl *ctrls[SLAP_MAX_RESPONSE_CONTROLS];
51 int parent_is_glue = 0;
52 int parent_is_leaf = 0;
54 struct berval ctxcsn_ndn = BER_BVNULL;
58 Debug( LDAP_DEBUG_ARGS, "==> " LDAP_XSTRING(bdb_delete) ": %s\n",
59 op->o_req_dn.bv_val, 0, 0 );
61 build_new_dn( &ctxcsn_ndn, &op->o_bd->be_nsuffix[0],
62 (struct berval *)&slap_ldapsync_cn_bv, op->o_tmpmemctx );
65 retry: /* transaction retry */
67 bdb_unlocked_cache_return_entry_w(&bdb->bi_cache, e);
71 bdb_unlocked_cache_return_entry_r(&bdb->bi_cache, p);
74 Debug( LDAP_DEBUG_TRACE,
75 "==> " LDAP_XSTRING(bdb_delete) ": retrying...\n",
77 rs->sr_err = TXN_ABORT( ltid );
80 op->o_do_not_cache = opinfo.boi_acl_cache;
81 if( rs->sr_err != 0 ) {
82 rs->sr_err = LDAP_OTHER;
83 rs->sr_text = "internal error";
88 ldap_pvt_thread_yield();
89 bdb_trans_backoff( ++num_retries );
92 /* begin transaction */
93 rs->sr_err = TXN_BEGIN( bdb->bi_dbenv, NULL, <id,
96 if( rs->sr_err != 0 ) {
97 Debug( LDAP_DEBUG_TRACE,
98 LDAP_XSTRING(bdb_delete) ": txn_begin failed: "
99 "%s (%d)\n", db_strerror(rs->sr_err), rs->sr_err, 0 );
100 rs->sr_err = LDAP_OTHER;
101 rs->sr_text = "internal error";
105 locker = TXN_ID ( ltid );
107 opinfo.boi_bdb = op->o_bd;
108 opinfo.boi_txn = ltid;
109 opinfo.boi_locker = locker;
111 opinfo.boi_acl_cache = op->o_do_not_cache;
112 op->o_private = &opinfo;
114 if ( !be_issuffix( op->o_bd, &op->o_req_ndn ) ) {
115 dnParent( &op->o_req_ndn, &pdn );
119 rs->sr_err = bdb_dn2entry( op, ltid, &op->o_req_ndn, &ei, 1,
122 switch( rs->sr_err ) {
126 case DB_LOCK_DEADLOCK:
127 case DB_LOCK_NOTGRANTED:
130 rs->sr_text = "ldap server busy";
133 rs->sr_err = LDAP_OTHER;
134 rs->sr_text = "internal error";
138 if ( rs->sr_err == 0 ) {
140 eip = ei->bei_parent;
145 /* FIXME : dn2entry() should return non-glue entry */
146 if ( e == NULL || ( !manageDSAit && is_entry_glue( e ))) {
147 Debug( LDAP_DEBUG_ARGS,
148 "<=- " LDAP_XSTRING(bdb_delete) ": no such object %s\n",
149 op->o_req_dn.bv_val, 0, 0);
151 if ( matched != NULL ) {
152 rs->sr_matched = ch_strdup( matched->e_dn );
153 rs->sr_ref = is_entry_referral( matched )
154 ? get_entry_referrals( op, matched )
156 bdb_unlocked_cache_return_entry_r(&bdb->bi_cache, matched);
160 rs->sr_ref = referral_rewrite( default_referral, NULL,
161 &op->o_req_dn, LDAP_SCOPE_DEFAULT );
164 rs->sr_err = LDAP_REFERRAL;
165 send_ldap_result( op, rs );
167 if ( rs->sr_ref != default_referral ) {
168 ber_bvarray_free( rs->sr_ref );
170 free( (char *)rs->sr_matched );
172 rs->sr_matched = NULL;
178 rc = bdb_cache_find_id( op, ltid, eip->bei_id, &eip, 0, locker, &plock );
180 case DB_LOCK_DEADLOCK:
181 case DB_LOCK_NOTGRANTED:
187 rs->sr_err = LDAP_OTHER;
188 rs->sr_text = "internal error";
191 if ( eip ) p = eip->bei_e;
193 if ( pdn.bv_len != 0 ) {
194 if( p == NULL || !bvmatch( &pdn, &p->e_nname )) {
195 Debug( LDAP_DEBUG_TRACE,
196 "<=- " LDAP_XSTRING(bdb_delete) ": parent "
197 "does not exist\n", 0, 0, 0 );
198 rs->sr_err = LDAP_OTHER;
199 rs->sr_text = "could not locate parent of entry";
203 /* check parent for "children" acl */
204 rs->sr_err = access_allowed( op, p,
205 children, NULL, ACL_WRITE, NULL );
208 switch( opinfo.boi_err ) {
209 case DB_LOCK_DEADLOCK:
210 case DB_LOCK_NOTGRANTED:
214 Debug( LDAP_DEBUG_TRACE,
215 "<=- " LDAP_XSTRING(bdb_delete) ": no write "
216 "access to parent\n", 0, 0, 0 );
217 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
218 rs->sr_text = "no write access to parent";
223 /* no parent, must be root to delete */
224 if( ! be_isroot( op ) ) {
225 if ( be_issuffix( op->o_bd, (struct berval *)&slap_empty_bv )
226 || be_shadow_update( op ) ) {
227 p = (Entry *)&slap_entry_root;
229 /* check parent for "children" acl */
230 rs->sr_err = access_allowed( op, p,
231 children, NULL, ACL_WRITE, NULL );
236 switch( opinfo.boi_err ) {
237 case DB_LOCK_DEADLOCK:
238 case DB_LOCK_NOTGRANTED:
242 Debug( LDAP_DEBUG_TRACE,
243 "<=- " LDAP_XSTRING(bdb_delete)
244 ": no access to parent\n",
246 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
247 rs->sr_text = "no write access to parent";
252 Debug( LDAP_DEBUG_TRACE,
253 "<=- " LDAP_XSTRING(bdb_delete)
254 ": no parent and not root\n", 0, 0, 0 );
255 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
261 if ( get_assert( op ) &&
262 ( test_filter( op, e, get_assertion( op )) != LDAP_COMPARE_TRUE ))
264 rs->sr_err = LDAP_ASSERTION_FAILED;
268 rs->sr_err = access_allowed( op, e,
269 entry, NULL, ACL_WRITE, NULL );
272 switch( opinfo.boi_err ) {
273 case DB_LOCK_DEADLOCK:
274 case DB_LOCK_NOTGRANTED:
278 Debug( LDAP_DEBUG_TRACE,
279 "<=- " LDAP_XSTRING(bdb_delete) ": no write access "
280 "to entry\n", 0, 0, 0 );
281 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
282 rs->sr_text = "no write access to entry";
286 if ( !manageDSAit && is_entry_referral( e ) ) {
287 /* entry is a referral, don't allow delete */
288 rs->sr_ref = get_entry_referrals( op, e );
290 Debug( LDAP_DEBUG_TRACE,
291 LDAP_XSTRING(bdb_delete) ": entry is referral\n",
294 rs->sr_err = LDAP_REFERRAL;
295 rs->sr_matched = e->e_name.bv_val;
296 send_ldap_result( op, rs );
298 ber_bvarray_free( rs->sr_ref );
300 rs->sr_matched = NULL;
307 if( op->o_preread ) {
308 if( preread_ctrl == NULL ) {
309 preread_ctrl = &ctrls[num_ctrls++];
310 ctrls[num_ctrls] = NULL;
312 if( slap_read_controls( op, rs, e,
313 &slap_pre_read_bv, preread_ctrl ) )
315 Debug( LDAP_DEBUG_TRACE,
316 "<=- " LDAP_XSTRING(bdb_delete) ": pre-read "
317 "failed!\n", 0, 0, 0 );
322 /* nested transaction */
323 rs->sr_err = TXN_BEGIN( bdb->bi_dbenv, ltid, <2,
324 bdb->bi_db_opflags );
326 if( rs->sr_err != 0 ) {
327 Debug( LDAP_DEBUG_TRACE,
328 LDAP_XSTRING(bdb_delete) ": txn_begin(2) failed: "
329 "%s (%d)\n", db_strerror(rs->sr_err), rs->sr_err, 0 );
330 rs->sr_err = LDAP_OTHER;
331 rs->sr_text = "internal error";
335 /* Can't do it if we have kids */
336 rs->sr_err = bdb_cache_children( op, lt2, e );
337 if( rs->sr_err != DB_NOTFOUND ) {
338 switch( rs->sr_err ) {
339 case DB_LOCK_DEADLOCK:
340 case DB_LOCK_NOTGRANTED:
343 Debug(LDAP_DEBUG_ARGS,
344 "<=- " LDAP_XSTRING(bdb_delete)
346 op->o_req_dn.bv_val, 0, 0);
347 rs->sr_err = LDAP_NOT_ALLOWED_ON_NONLEAF;
348 rs->sr_text = "subtree delete not supported";
351 Debug(LDAP_DEBUG_ARGS,
352 "<=- " LDAP_XSTRING(bdb_delete)
353 ": has_children failed: %s (%d)\n",
354 db_strerror(rs->sr_err), rs->sr_err, 0 );
355 rs->sr_err = LDAP_OTHER;
356 rs->sr_text = "internal error";
361 /* delete from dn2id */
362 rs->sr_err = bdb_dn2id_delete( op, lt2, eip, e );
363 if ( rs->sr_err != 0 ) {
364 Debug(LDAP_DEBUG_TRACE,
365 "<=- " LDAP_XSTRING(bdb_delete) ": dn2id failed: "
366 "%s (%d)\n", db_strerror(rs->sr_err), rs->sr_err, 0 );
367 switch( rs->sr_err ) {
368 case DB_LOCK_DEADLOCK:
369 case DB_LOCK_NOTGRANTED:
372 rs->sr_text = "DN index delete failed";
373 rs->sr_err = LDAP_OTHER;
377 /* delete from id2entry */
378 rs->sr_err = bdb_id2entry_delete( op->o_bd, lt2, e );
379 if ( rs->sr_err != 0 ) {
380 Debug(LDAP_DEBUG_TRACE,
381 "<=- " LDAP_XSTRING(bdb_delete) ": id2entry failed: "
382 "%s (%d)\n", db_strerror(rs->sr_err), rs->sr_err, 0 );
383 switch( rs->sr_err ) {
384 case DB_LOCK_DEADLOCK:
385 case DB_LOCK_NOTGRANTED:
388 rs->sr_text = "entry delete failed";
389 rs->sr_err = LDAP_OTHER;
393 /* delete indices for old attributes */
394 rs->sr_err = bdb_index_entry_del( op, lt2, e );
395 if ( rs->sr_err != LDAP_SUCCESS ) {
396 Debug( LDAP_DEBUG_TRACE,
397 "<=- " LDAP_XSTRING(bdb_delete) ": index failed: "
398 "%s (%d)\n", db_strerror(rs->sr_err), rs->sr_err, 0 );
399 switch( rs->sr_err ) {
400 case DB_LOCK_DEADLOCK:
401 case DB_LOCK_NOTGRANTED:
404 rs->sr_text = "entry index delete failed";
405 rs->sr_err = LDAP_OTHER;
409 if ( pdn.bv_len != 0 ) {
410 parent_is_glue = is_entry_glue(p);
411 rs->sr_err = bdb_cache_children( op, lt2, p );
412 if ( rs->sr_err != DB_NOTFOUND ) {
413 switch( rs->sr_err ) {
414 case DB_LOCK_DEADLOCK:
415 case DB_LOCK_NOTGRANTED:
420 Debug(LDAP_DEBUG_ARGS,
421 "<=- " LDAP_XSTRING(bdb_delete)
422 ": has_children failed: %s (%d)\n",
423 db_strerror(rs->sr_err), rs->sr_err, 0 );
424 rs->sr_err = LDAP_OTHER;
425 rs->sr_text = "internal error";
430 bdb_unlocked_cache_return_entry_r(&bdb->bi_cache, p);
434 if ( TXN_COMMIT( lt2, 0 ) != 0 ) {
435 rs->sr_err = LDAP_OTHER;
436 rs->sr_text = "txn_commit(2) failed";
442 #if 0 /* Do we want to reclaim deleted IDs? */
443 ldap_pvt_thread_mutex_lock( &bdb->bi_lastid_mutex );
444 if ( e->e_id == bdb->bi_lastid ) {
445 bdb_last_id( op->o_bd, ltid );
447 ldap_pvt_thread_mutex_unlock( &bdb->bi_lastid_mutex );
451 if ( ( rs->sr_err = TXN_ABORT( ltid ) ) != 0 ) {
452 rs->sr_text = "txn_abort (no-op) failed";
454 rs->sr_err = LDAP_NO_OPERATION;
458 rc = bdb_cache_delete( &bdb->bi_cache, e, bdb->bi_dbenv,
461 case DB_LOCK_DEADLOCK:
462 case DB_LOCK_NOTGRANTED:
466 rs->sr_err = TXN_COMMIT( ltid, 0 );
469 op->o_private = NULL;
471 if( rs->sr_err != 0 ) {
472 Debug( LDAP_DEBUG_TRACE,
473 LDAP_XSTRING(bdb_delete) ": txn_%s failed: %s (%d)\n",
474 op->o_noop ? "abort (no-op)" : "commit",
475 db_strerror(rs->sr_err), rs->sr_err );
476 rs->sr_err = LDAP_OTHER;
477 rs->sr_text = "commit failed";
482 Debug( LDAP_DEBUG_TRACE,
483 LDAP_XSTRING(bdb_delete) ": deleted%s id=%08lx dn=\"%s\"\n",
484 op->o_noop ? " (no-op)" : "",
485 eid, op->o_req_dn.bv_val );
486 rs->sr_err = LDAP_SUCCESS;
488 if( num_ctrls ) rs->sr_ctrls = ctrls;
491 send_ldap_result( op, rs );
493 if( rs->sr_err == LDAP_SUCCESS && bdb->bi_txn_cp ) {
494 ldap_pvt_thread_yield();
495 TXN_CHECKPOINT( bdb->bi_dbenv,
496 bdb->bi_txn_cp_kbyte, bdb->bi_txn_cp_min, 0 );
499 if ( rs->sr_err == LDAP_SUCCESS && parent_is_glue && parent_is_leaf ) {
500 op->o_delete_glue_parent = 1;
505 bdb_unlocked_cache_return_entry_r(&bdb->bi_cache, p);
509 if ( rs->sr_err == LDAP_SUCCESS ) {
510 /* Free the EntryInfo and the Entry */
511 bdb_cache_delete_cleanup( &bdb->bi_cache, BEI(e) );
513 bdb_unlocked_cache_return_entry_w(&bdb->bi_cache, e);
519 op->o_private = NULL;
522 slap_sl_free( ctxcsn_ndn.bv_val, op->o_tmpmemctx );
524 if( preread_ctrl != NULL ) {
525 slap_sl_free( (*preread_ctrl)->ldctl_value.bv_val, op->o_tmpmemctx );
526 slap_sl_free( *preread_ctrl, op->o_tmpmemctx );