1 /* modify.c - bdb backend modify routine */
3 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
5 * Copyright 2000-2011 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 static struct berval scbva[] = {
33 AttributeDescription *desc,
41 /* check if modified attribute was indexed
42 * but not in case of NOOP... */
43 ai = bdb_index_mask( op->o_bd, desc, &ix_at );
49 ap = attr_find( oldattrs, desc );
50 if ( ap ) ap->a_flags |= SLAP_ATTR_IXDEL;
52 /* Find all other attrs that index to same slot */
53 for ( ap = newattrs; ap; ap = ap->a_next ) {
54 ai = bdb_index_mask( op->o_bd, ap->a_desc, &ix2 );
55 if ( ai && ix2.bv_val == ix_at.bv_val )
56 ap->a_flags |= SLAP_ATTR_IXADD;
62 ap = attr_find( newattrs, desc );
63 if ( ap ) ap->a_flags |= SLAP_ATTR_IXADD;
68 int bdb_modify_internal(
71 Modifications *modlist,
80 Attribute *save_attrs;
82 int glue_attr_delete = 0;
85 Debug( LDAP_DEBUG_TRACE, "bdb_modify_internal: 0x%08lx: %s\n",
88 if ( !acl_check_modlist( op, e, modlist )) {
89 return LDAP_INSUFFICIENT_ACCESS;
92 /* save_attrs will be disposed of by bdb_cache_modify */
93 save_attrs = e->e_attrs;
94 e->e_attrs = attrs_dup( e->e_attrs );
96 for ( ml = modlist; ml != NULL; ml = ml->sml_next ) {
99 switch( mod->sm_op ) {
101 case LDAP_MOD_REPLACE:
102 if ( mod->sm_desc == slap_schema.si_ad_structuralObjectClass ) {
103 value_match( &match, slap_schema.si_ad_structuralObjectClass,
104 slap_schema.si_ad_structuralObjectClass->
105 ad_type->sat_equality,
106 SLAP_MR_VALUE_OF_ATTRIBUTE_SYNTAX,
107 &mod->sm_values[0], &scbva[0], text );
108 if ( !match ) glue_attr_delete = 1;
111 if ( glue_attr_delete )
115 if ( glue_attr_delete ) {
116 Attribute **app = &e->e_attrs;
117 while ( *app != NULL ) {
118 if ( !is_at_operational( (*app)->a_desc->ad_type )) {
119 Attribute *save = *app;
120 *app = (*app)->a_next;
124 app = &(*app)->a_next;
128 for ( ml = modlist; ml != NULL; ml = ml->sml_next ) {
132 switch ( mod->sm_op ) {
134 Debug(LDAP_DEBUG_ARGS,
135 "bdb_modify_internal: add %s\n",
136 mod->sm_desc->ad_cname.bv_val, 0, 0);
137 err = modify_add_values( e, mod, get_permissiveModify(op),
138 text, textbuf, textlen );
139 if( err != LDAP_SUCCESS ) {
140 Debug(LDAP_DEBUG_ARGS, "bdb_modify_internal: %d %s\n",
145 case LDAP_MOD_DELETE:
146 if ( glue_attr_delete ) {
151 Debug(LDAP_DEBUG_ARGS,
152 "bdb_modify_internal: delete %s\n",
153 mod->sm_desc->ad_cname.bv_val, 0, 0);
154 err = modify_delete_values( e, mod, get_permissiveModify(op),
155 text, textbuf, textlen );
156 assert( err != LDAP_TYPE_OR_VALUE_EXISTS );
157 if( err != LDAP_SUCCESS ) {
158 Debug(LDAP_DEBUG_ARGS, "bdb_modify_internal: %d %s\n",
165 case LDAP_MOD_REPLACE:
166 Debug(LDAP_DEBUG_ARGS,
167 "bdb_modify_internal: replace %s\n",
168 mod->sm_desc->ad_cname.bv_val, 0, 0);
169 err = modify_replace_values( e, mod, get_permissiveModify(op),
170 text, textbuf, textlen );
171 if( err != LDAP_SUCCESS ) {
172 Debug(LDAP_DEBUG_ARGS, "bdb_modify_internal: %d %s\n",
179 case LDAP_MOD_INCREMENT:
180 Debug(LDAP_DEBUG_ARGS,
181 "bdb_modify_internal: increment %s\n",
182 mod->sm_desc->ad_cname.bv_val, 0, 0);
183 err = modify_increment_values( e, mod, get_permissiveModify(op),
184 text, textbuf, textlen );
185 if( err != LDAP_SUCCESS ) {
186 Debug(LDAP_DEBUG_ARGS,
187 "bdb_modify_internal: %d %s\n",
194 case SLAP_MOD_SOFTADD:
195 Debug(LDAP_DEBUG_ARGS,
196 "bdb_modify_internal: softadd %s\n",
197 mod->sm_desc->ad_cname.bv_val, 0, 0);
198 /* Avoid problems in index_add_mods()
199 * We need to add index if necessary.
201 mod->sm_op = LDAP_MOD_ADD;
203 err = modify_add_values( e, mod, get_permissiveModify(op),
204 text, textbuf, textlen );
206 mod->sm_op = SLAP_MOD_SOFTADD;
208 if ( err == LDAP_TYPE_OR_VALUE_EXISTS ) {
212 if( err != LDAP_SUCCESS ) {
213 Debug(LDAP_DEBUG_ARGS, "bdb_modify_internal: %d %s\n",
218 case SLAP_MOD_SOFTDEL:
219 Debug(LDAP_DEBUG_ARGS,
220 "bdb_modify_internal: softdel %s\n",
221 mod->sm_desc->ad_cname.bv_val, 0, 0);
222 /* Avoid problems in index_delete_mods()
223 * We need to add index if necessary.
225 mod->sm_op = LDAP_MOD_DELETE;
227 err = modify_delete_values( e, mod, get_permissiveModify(op),
228 text, textbuf, textlen );
230 mod->sm_op = SLAP_MOD_SOFTDEL;
232 if ( err == LDAP_TYPE_OR_VALUE_EXISTS ) {
236 if( err != LDAP_SUCCESS ) {
237 Debug(LDAP_DEBUG_ARGS, "bdb_modify_internal: %d %s\n",
242 case SLAP_MOD_ADD_IF_NOT_PRESENT:
243 if ( attr_find( e->e_attrs, mod->sm_desc ) != NULL ) {
249 Debug(LDAP_DEBUG_ARGS,
250 "bdb_modify_internal: add_if_not_present %s\n",
251 mod->sm_desc->ad_cname.bv_val, 0, 0);
252 /* Avoid problems in index_add_mods()
253 * We need to add index if necessary.
255 mod->sm_op = LDAP_MOD_ADD;
257 err = modify_add_values( e, mod, get_permissiveModify(op),
258 text, textbuf, textlen );
260 mod->sm_op = SLAP_MOD_ADD_IF_NOT_PRESENT;
262 if( err != LDAP_SUCCESS ) {
263 Debug(LDAP_DEBUG_ARGS, "bdb_modify_internal: %d %s\n",
269 Debug(LDAP_DEBUG_ANY, "bdb_modify_internal: invalid op %d\n",
271 *text = "Invalid modify operation";
273 Debug(LDAP_DEBUG_ARGS, "bdb_modify_internal: %d %s\n",
277 if ( err != LDAP_SUCCESS ) {
278 attrs_free( e->e_attrs );
279 e->e_attrs = save_attrs;
280 /* unlock entry, delete from cache */
284 /* If objectClass was modified, reset the flags */
285 if ( mod->sm_desc == slap_schema.si_ad_objectClass ) {
289 if ( glue_attr_delete ) e->e_ocflags = 0;
292 /* check if modified attribute was indexed
293 * but not in case of NOOP... */
295 bdb_modify_idxflags( op, mod->sm_desc, got_delete, e->e_attrs, save_attrs );
299 /* check that the entry still obeys the schema */
301 rc = entry_schema_check( op, e, save_attrs, get_relax(op), 0, &ap,
302 text, textbuf, textlen );
303 if ( rc != LDAP_SUCCESS || op->o_noop ) {
304 attrs_free( e->e_attrs );
305 /* clear the indexing flags */
306 for ( ap = save_attrs; ap != NULL; ap = ap->a_next ) {
307 ap->a_flags &= ~(SLAP_ATTR_IXADD|SLAP_ATTR_IXDEL);
309 e->e_attrs = save_attrs;
311 if ( rc != LDAP_SUCCESS ) {
312 Debug( LDAP_DEBUG_ANY,
313 "entry failed schema check: %s\n",
317 /* if NOOP then silently revert to saved attrs */
321 /* structuralObjectClass modified! */
323 assert( ap->a_desc == slap_schema.si_ad_structuralObjectClass );
325 bdb_modify_idxflags( op, slap_schema.si_ad_structuralObjectClass,
326 1, e->e_attrs, save_attrs );
330 /* update the indices of the modified attributes */
332 /* start with deleting the old index entries */
333 for ( ap = save_attrs; ap != NULL; ap = ap->a_next ) {
334 if ( ap->a_flags & SLAP_ATTR_IXDEL ) {
337 ap->a_flags &= ~SLAP_ATTR_IXDEL;
338 a2 = attr_find( e->e_attrs, ap->a_desc );
340 /* need to detect which values were deleted */
342 vals = op->o_tmpalloc( (ap->a_numvals + 1) *
343 sizeof(struct berval), op->o_tmpmemctx );
345 for ( i=0; i < ap->a_numvals; i++ ) {
346 rc = attr_valfind( a2, SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH,
347 &ap->a_nvals[i], NULL, op->o_tmpmemctx );
348 /* Save deleted values */
349 if ( rc == LDAP_NO_SUCH_ATTRIBUTE )
350 vals[j++] = ap->a_nvals[i];
355 /* attribute was completely deleted */
359 if ( !BER_BVISNULL( vals )) {
360 rc = bdb_index_values( op, tid, ap->a_desc,
361 vals, e->e_id, SLAP_INDEX_DELETE_OP );
362 if ( rc != LDAP_SUCCESS ) {
363 Debug( LDAP_DEBUG_ANY,
364 "%s: attribute \"%s\" index delete failure\n",
365 op->o_log_prefix, ap->a_desc->ad_cname.bv_val, 0 );
366 attrs_free( e->e_attrs );
367 e->e_attrs = save_attrs;
370 if ( vals != ap->a_nvals )
371 op->o_tmpfree( vals, op->o_tmpmemctx );
376 /* add the new index entries */
377 for ( ap = e->e_attrs; ap != NULL; ap = ap->a_next ) {
378 if (ap->a_flags & SLAP_ATTR_IXADD) {
379 ap->a_flags &= ~SLAP_ATTR_IXADD;
380 rc = bdb_index_values( op, tid, ap->a_desc,
382 e->e_id, SLAP_INDEX_ADD_OP );
383 if ( rc != LDAP_SUCCESS ) {
384 Debug( LDAP_DEBUG_ANY,
385 "%s: attribute \"%s\" index add failure\n",
386 op->o_log_prefix, ap->a_desc->ad_cname.bv_val, 0 );
387 attrs_free( e->e_attrs );
388 e->e_attrs = save_attrs;
399 bdb_modify( Operation *op, SlapReply *rs )
401 struct bdb_info *bdb = (struct bdb_info *) op->o_bd->be_private;
403 EntryInfo *ei = NULL;
404 int manageDSAit = get_manageDSAit( op );
405 char textbuf[SLAP_TEXT_BUFLEN];
406 size_t textlen = sizeof textbuf;
407 DB_TXN *ltid = NULL, *lt2;
408 struct bdb_op_info opinfo = {{{ 0 }}};
415 LDAPControl **preread_ctrl = NULL;
416 LDAPControl **postread_ctrl = NULL;
417 LDAPControl *ctrls[SLAP_MAX_RESPONSE_CONTROLS];
426 Debug( LDAP_DEBUG_ARGS, LDAP_XSTRING(bdb_modify) ": %s\n",
427 op->o_req_dn.bv_val, 0, 0 );
430 if( op->o_txnSpec ) {
431 /* acquire connection lock */
432 ldap_pvt_thread_mutex_lock( &op->o_conn->c_mutex );
433 if( op->o_conn->c_txn == CONN_TXN_INACTIVE ) {
434 rs->sr_text = "invalid transaction identifier";
435 rs->sr_err = LDAP_X_TXN_ID_INVALID;
437 } else if( op->o_conn->c_txn == CONN_TXN_SETTLE ) {
442 if( op->o_conn->c_txn_backend == NULL ) {
443 op->o_conn->c_txn_backend = op->o_bd;
445 } else if( op->o_conn->c_txn_backend != op->o_bd ) {
446 rs->sr_text = "transaction cannot span multiple database contexts";
447 rs->sr_err = LDAP_AFFECTS_MULTIPLE_DSAS;
451 /* insert operation into transaction */
453 rs->sr_text = "transaction specified";
454 rs->sr_err = LDAP_X_TXN_SPECIFY_OKAY;
457 /* release connection lock */
458 ldap_pvt_thread_mutex_unlock( &op->o_conn->c_mutex );
461 send_ldap_result( op, rs );
467 ctrls[num_ctrls] = NULL;
469 /* Don't touch the opattrs, if this is a contextCSN update
470 * initiated from updatedn */
471 if ( !be_isupdate(op) || !op->orm_modlist || op->orm_modlist->sml_next ||
472 op->orm_modlist->sml_desc != slap_schema.si_ad_contextCSN ) {
474 slap_mods_opattrs( op, &op->orm_modlist, 1 );
478 retry: /* transaction retry */
479 if ( dummy.e_attrs ) {
480 attrs_free( dummy.e_attrs );
481 dummy.e_attrs = NULL;
484 bdb_unlocked_cache_return_entry_w(&bdb->bi_cache, e);
487 Debug(LDAP_DEBUG_TRACE,
488 LDAP_XSTRING(bdb_modify) ": retrying...\n", 0, 0, 0);
490 rs->sr_err = TXN_ABORT( ltid );
492 LDAP_SLIST_REMOVE( &op->o_extra, &opinfo.boi_oe, OpExtra, oe_next );
493 opinfo.boi_oe.oe_key = NULL;
494 op->o_do_not_cache = opinfo.boi_acl_cache;
495 if( rs->sr_err != 0 ) {
496 rs->sr_err = LDAP_OTHER;
497 rs->sr_text = "internal error";
500 if ( op->o_abandon ) {
501 rs->sr_err = SLAPD_ABANDON;
504 bdb_trans_backoff( ++num_retries );
507 /* begin transaction */
508 rs->sr_err = TXN_BEGIN( bdb->bi_dbenv, NULL, <id,
509 bdb->bi_db_opflags );
511 if( rs->sr_err != 0 ) {
512 Debug( LDAP_DEBUG_TRACE,
513 LDAP_XSTRING(bdb_modify) ": txn_begin failed: "
514 "%s (%d)\n", db_strerror(rs->sr_err), rs->sr_err, 0 );
515 rs->sr_err = LDAP_OTHER;
516 rs->sr_text = "internal error";
520 opinfo.boi_oe.oe_key = bdb;
521 opinfo.boi_txn = ltid;
523 opinfo.boi_acl_cache = op->o_do_not_cache;
524 LDAP_SLIST_INSERT_HEAD( &op->o_extra, &opinfo.boi_oe, oe_next );
526 /* get entry or ancestor */
527 rs->sr_err = bdb_dn2entry( op, ltid, &op->o_req_ndn, &ei, 1,
530 if ( rs->sr_err != 0 ) {
531 Debug( LDAP_DEBUG_TRACE,
532 LDAP_XSTRING(bdb_modify) ": dn2entry failed (%d)\n",
534 switch( rs->sr_err ) {
535 case DB_LOCK_DEADLOCK:
536 case DB_LOCK_NOTGRANTED:
541 rs->sr_text = "ldap server busy";
544 rs->sr_err = LDAP_OTHER;
545 rs->sr_text = "internal error";
552 /* acquire and lock entry */
553 /* FIXME: dn2entry() should return non-glue entry */
554 if (( rs->sr_err == DB_NOTFOUND ) ||
555 ( !manageDSAit && e && is_entry_glue( e )))
558 rs->sr_matched = ch_strdup( e->e_dn );
559 rs->sr_ref = is_entry_referral( e )
560 ? get_entry_referrals( op, e )
562 bdb_unlocked_cache_return_entry_r (&bdb->bi_cache, e);
566 rs->sr_ref = referral_rewrite( default_referral, NULL,
567 &op->o_req_dn, LDAP_SCOPE_DEFAULT );
570 rs->sr_err = LDAP_REFERRAL;
571 send_ldap_result( op, rs );
573 if ( rs->sr_ref != default_referral ) {
574 ber_bvarray_free( rs->sr_ref );
576 free( (char *)rs->sr_matched );
578 rs->sr_matched = NULL;
583 if ( !manageDSAit && is_entry_referral( e ) ) {
584 /* entry is a referral, don't allow modify */
585 rs->sr_ref = get_entry_referrals( op, e );
587 Debug( LDAP_DEBUG_TRACE,
588 LDAP_XSTRING(bdb_modify) ": entry is referral\n",
591 rs->sr_err = LDAP_REFERRAL;
592 rs->sr_matched = e->e_name.bv_val;
593 send_ldap_result( op, rs );
595 ber_bvarray_free( rs->sr_ref );
597 rs->sr_matched = NULL;
601 if ( get_assert( op ) &&
602 ( test_filter( op, e, get_assertion( op )) != LDAP_COMPARE_TRUE ))
604 rs->sr_err = LDAP_ASSERTION_FAILED;
608 if( op->o_preread ) {
609 if( preread_ctrl == NULL ) {
610 preread_ctrl = &ctrls[num_ctrls++];
611 ctrls[num_ctrls] = NULL;
613 if ( slap_read_controls( op, rs, e,
614 &slap_pre_read_bv, preread_ctrl ) )
616 Debug( LDAP_DEBUG_TRACE,
617 "<=- " LDAP_XSTRING(bdb_modify) ": pre-read "
618 "failed!\n", 0, 0, 0 );
619 if ( op->o_preread & SLAP_CONTROL_CRITICAL ) {
620 /* FIXME: is it correct to abort
621 * operation if control fails? */
627 /* nested transaction */
628 rs->sr_err = TXN_BEGIN( bdb->bi_dbenv, ltid, <2, bdb->bi_db_opflags );
630 if( rs->sr_err != 0 ) {
631 Debug( LDAP_DEBUG_TRACE,
632 LDAP_XSTRING(bdb_modify) ": txn_begin(2) failed: " "%s (%d)\n",
633 db_strerror(rs->sr_err), rs->sr_err, 0 );
634 rs->sr_err = LDAP_OTHER;
635 rs->sr_text = "internal error";
638 /* Modify the entry */
640 rs->sr_err = bdb_modify_internal( op, lt2, op->orm_modlist,
641 &dummy, &rs->sr_text, textbuf, textlen );
643 if( rs->sr_err != LDAP_SUCCESS ) {
644 Debug( LDAP_DEBUG_TRACE,
645 LDAP_XSTRING(bdb_modify) ": modify failed (%d)\n",
647 if ( (rs->sr_err == LDAP_INSUFFICIENT_ACCESS) && opinfo.boi_err ) {
648 rs->sr_err = opinfo.boi_err;
650 /* Only free attrs if they were dup'd. */
651 if ( dummy.e_attrs == e->e_attrs ) dummy.e_attrs = NULL;
652 switch( rs->sr_err ) {
653 case DB_LOCK_DEADLOCK:
654 case DB_LOCK_NOTGRANTED:
660 /* change the entry itself */
661 rs->sr_err = bdb_id2entry_update( op->o_bd, lt2, &dummy );
662 if ( rs->sr_err != 0 ) {
663 Debug( LDAP_DEBUG_TRACE,
664 LDAP_XSTRING(bdb_modify) ": id2entry update failed " "(%d)\n",
666 switch( rs->sr_err ) {
667 case DB_LOCK_DEADLOCK:
668 case DB_LOCK_NOTGRANTED:
671 rs->sr_text = "entry update failed";
675 if ( TXN_COMMIT( lt2, 0 ) != 0 ) {
676 rs->sr_err = LDAP_OTHER;
677 rs->sr_text = "txn_commit(2) failed";
681 if( op->o_postread ) {
682 if( postread_ctrl == NULL ) {
683 postread_ctrl = &ctrls[num_ctrls++];
684 ctrls[num_ctrls] = NULL;
686 if( slap_read_controls( op, rs, &dummy,
687 &slap_post_read_bv, postread_ctrl ) )
689 Debug( LDAP_DEBUG_TRACE,
690 "<=- " LDAP_XSTRING(bdb_modify)
691 ": post-read failed!\n", 0, 0, 0 );
692 if ( op->o_postread & SLAP_CONTROL_CRITICAL ) {
693 /* FIXME: is it correct to abort
694 * operation if control fails? */
701 if ( ( rs->sr_err = TXN_ABORT( ltid ) ) != 0 ) {
702 rs->sr_text = "txn_abort (no-op) failed";
704 rs->sr_err = LDAP_X_NO_OPERATION;
706 /* Only free attrs if they were dup'd. */
707 if ( dummy.e_attrs == e->e_attrs ) dummy.e_attrs = NULL;
711 /* may have changed in bdb_modify_internal() */
712 e->e_ocflags = dummy.e_ocflags;
713 rc = bdb_cache_modify( bdb, e, dummy.e_attrs, ltid, &lock );
715 case DB_LOCK_DEADLOCK:
716 case DB_LOCK_NOTGRANTED:
719 dummy.e_attrs = NULL;
721 rs->sr_err = TXN_COMMIT( ltid, 0 );
724 LDAP_SLIST_REMOVE( &op->o_extra, &opinfo.boi_oe, OpExtra, oe_next );
725 opinfo.boi_oe.oe_key = NULL;
727 if( rs->sr_err != 0 ) {
728 Debug( LDAP_DEBUG_TRACE,
729 LDAP_XSTRING(bdb_modify) ": txn_%s failed: %s (%d)\n",
730 op->o_noop ? "abort (no-op)" : "commit",
731 db_strerror(rs->sr_err), rs->sr_err );
732 rs->sr_err = LDAP_OTHER;
733 rs->sr_text = "commit failed";
738 Debug( LDAP_DEBUG_TRACE,
739 LDAP_XSTRING(bdb_modify) ": updated%s id=%08lx dn=\"%s\"\n",
740 op->o_noop ? " (no-op)" : "",
741 dummy.e_id, op->o_req_dn.bv_val );
743 rs->sr_err = LDAP_SUCCESS;
745 if( num_ctrls ) rs->sr_ctrls = ctrls;
748 if( dummy.e_attrs ) {
749 attrs_free( dummy.e_attrs );
751 send_ldap_result( op, rs );
753 if( rs->sr_err == LDAP_SUCCESS && bdb->bi_txn_cp_kbyte ) {
754 TXN_CHECKPOINT( bdb->bi_dbenv,
755 bdb->bi_txn_cp_kbyte, bdb->bi_txn_cp_min, 0 );
759 slap_graduate_commit_csn( op );
764 if ( opinfo.boi_oe.oe_key ) {
765 LDAP_SLIST_REMOVE( &op->o_extra, &opinfo.boi_oe, OpExtra, oe_next );
769 bdb_unlocked_cache_return_entry_w (&bdb->bi_cache, e);
772 if( preread_ctrl != NULL && (*preread_ctrl) != NULL ) {
773 slap_sl_free( (*preread_ctrl)->ldctl_value.bv_val, op->o_tmpmemctx );
774 slap_sl_free( *preread_ctrl, op->o_tmpmemctx );
776 if( postread_ctrl != NULL && (*postread_ctrl) != NULL ) {
777 slap_sl_free( (*postread_ctrl)->ldctl_value.bv_val, op->o_tmpmemctx );
778 slap_sl_free( *postread_ctrl, op->o_tmpmemctx );