1 /* modify.c - bdb backend modify routine */
3 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
5 * Copyright 2000-2007 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[] = {
30 int bdb_modify_internal(
33 Modifications *modlist,
42 Attribute *save_attrs;
44 int glue_attr_delete = 0;
48 Debug( LDAP_DEBUG_TRACE, "bdb_modify_internal: 0x%08lx: %s\n",
51 if ( !acl_check_modlist( op, e, modlist )) {
52 return LDAP_INSUFFICIENT_ACCESS;
55 /* save_attrs will be disposed of by bdb_cache_modify */
56 save_attrs = e->e_attrs;
57 e->e_attrs = attrs_dup( e->e_attrs );
59 for ( ml = modlist; ml != NULL; ml = ml->sml_next ) {
62 switch( mod->sm_op ) {
64 case LDAP_MOD_REPLACE:
65 if ( mod->sm_desc == slap_schema.si_ad_structuralObjectClass ) {
66 value_match( &match, slap_schema.si_ad_structuralObjectClass,
67 slap_schema.si_ad_structuralObjectClass->
68 ad_type->sat_equality,
69 SLAP_MR_VALUE_OF_ATTRIBUTE_SYNTAX,
70 &mod->sm_values[0], &scbva[0], text );
71 if ( !match ) glue_attr_delete = 1;
74 if ( glue_attr_delete )
78 if ( glue_attr_delete ) {
79 Attribute **app = &e->e_attrs;
80 while ( *app != NULL ) {
81 if ( !is_at_operational( (*app)->a_desc->ad_type )) {
82 Attribute *save = *app;
83 *app = (*app)->a_next;
87 app = &(*app)->a_next;
91 for ( ml = modlist; ml != NULL; ml = ml->sml_next ) {
96 switch ( mod->sm_op ) {
98 Debug(LDAP_DEBUG_ARGS,
99 "bdb_modify_internal: add %s\n",
100 mod->sm_desc->ad_cname.bv_val, 0, 0);
101 err = modify_add_values( e, mod, get_permissiveModify(op),
102 text, textbuf, textlen );
103 if( err != LDAP_SUCCESS ) {
104 Debug(LDAP_DEBUG_ARGS, "bdb_modify_internal: %d %s\n",
109 case LDAP_MOD_DELETE:
110 if ( glue_attr_delete ) {
115 Debug(LDAP_DEBUG_ARGS,
116 "bdb_modify_internal: delete %s\n",
117 mod->sm_desc->ad_cname.bv_val, 0, 0);
118 err = modify_delete_values( e, mod, get_permissiveModify(op),
119 text, textbuf, textlen );
120 assert( err != LDAP_TYPE_OR_VALUE_EXISTS );
121 if( err != LDAP_SUCCESS ) {
122 Debug(LDAP_DEBUG_ARGS, "bdb_modify_internal: %d %s\n",
129 case LDAP_MOD_REPLACE:
130 Debug(LDAP_DEBUG_ARGS,
131 "bdb_modify_internal: replace %s\n",
132 mod->sm_desc->ad_cname.bv_val, 0, 0);
133 err = modify_replace_values( e, mod, get_permissiveModify(op),
134 text, textbuf, textlen );
135 if( err != LDAP_SUCCESS ) {
136 Debug(LDAP_DEBUG_ARGS, "bdb_modify_internal: %d %s\n",
143 case LDAP_MOD_INCREMENT:
144 Debug(LDAP_DEBUG_ARGS,
145 "bdb_modify_internal: increment %s\n",
146 mod->sm_desc->ad_cname.bv_val, 0, 0);
147 err = modify_increment_values( e, mod, get_permissiveModify(op),
148 text, textbuf, textlen );
149 if( err != LDAP_SUCCESS ) {
150 Debug(LDAP_DEBUG_ARGS,
151 "bdb_modify_internal: %d %s\n",
158 case SLAP_MOD_SOFTADD:
159 Debug(LDAP_DEBUG_ARGS,
160 "bdb_modify_internal: softadd %s\n",
161 mod->sm_desc->ad_cname.bv_val, 0, 0);
162 /* Avoid problems in index_add_mods()
163 * We need to add index if necessary.
165 mod->sm_op = LDAP_MOD_ADD;
167 err = modify_add_values( e, mod, get_permissiveModify(op),
168 text, textbuf, textlen );
170 mod->sm_op = SLAP_MOD_SOFTADD;
172 if ( err == LDAP_TYPE_OR_VALUE_EXISTS ) {
176 if( err != LDAP_SUCCESS ) {
177 Debug(LDAP_DEBUG_ARGS, "bdb_modify_internal: %d %s\n",
183 Debug(LDAP_DEBUG_ANY, "bdb_modify_internal: invalid op %d\n",
185 *text = "Invalid modify operation";
187 Debug(LDAP_DEBUG_ARGS, "bdb_modify_internal: %d %s\n",
191 if ( err != LDAP_SUCCESS ) {
192 attrs_free( e->e_attrs );
193 e->e_attrs = save_attrs;
194 /* unlock entry, delete from cache */
198 /* If objectClass was modified, reset the flags */
199 if ( mod->sm_desc == slap_schema.si_ad_objectClass ) {
203 if ( glue_attr_delete ) e->e_ocflags = 0;
205 /* check if modified attribute was indexed
206 * but not in case of NOOP... */
207 ai = bdb_index_mask( op->o_bd, mod->sm_desc, &ix_at );
208 if ( ai && !op->o_noop ) {
212 ap = attr_find( save_attrs, mod->sm_desc );
213 if ( ap ) ap->a_flags |= SLAP_ATTR_IXDEL;
215 /* Find all other attrs that index to same slot */
216 for ( ap = e->e_attrs; ap; ap=ap->a_next ) {
217 ai = bdb_index_mask( op->o_bd, ap->a_desc, &ix2 );
218 if ( ai && ix2.bv_val == ix_at.bv_val )
219 ap->a_flags |= SLAP_ATTR_IXADD;
222 ap = attr_find( e->e_attrs, mod->sm_desc );
223 if ( ap ) ap->a_flags |= SLAP_ATTR_IXADD;
228 /* check that the entry still obeys the schema */
229 rc = entry_schema_check( op, e, save_attrs, get_relax(op), 0,
230 text, textbuf, textlen );
231 if ( rc != LDAP_SUCCESS || op->o_noop ) {
232 attrs_free( e->e_attrs );
233 /* clear the indexing flags */
234 for ( ap = save_attrs; ap != NULL; ap = ap->a_next ) {
235 ap->a_flags &= ~(SLAP_ATTR_IXADD|SLAP_ATTR_IXDEL);
237 e->e_attrs = save_attrs;
239 if ( rc != LDAP_SUCCESS ) {
240 Debug( LDAP_DEBUG_ANY,
241 "entry failed schema check: %s\n",
245 /* if NOOP then silently revert to saved attrs */
249 /* update the indices of the modified attributes */
251 /* start with deleting the old index entries */
252 for ( ap = save_attrs; ap != NULL; ap = ap->a_next ) {
253 if ( ap->a_flags & SLAP_ATTR_IXDEL ) {
254 struct berval tmp, *vals;
256 ap->a_flags &= ~SLAP_ATTR_IXDEL;
257 a2 = attr_find( e->e_attrs, ap->a_desc );
259 /* need to detect which values were deleted */
264 rc = attr_valfind( a2, SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH,
265 &ap->a_nvals[i], NULL, op->o_tmpmemctx );
266 /* Move deleted values to end of array */
267 if ( rc == LDAP_NO_SUCH_ATTRIBUTE ) {
270 tmp = ap->a_nvals[j];
271 ap->a_nvals[j] = ap->a_nvals[i];
272 ap->a_nvals[i] = tmp;
274 ap->a_vals[j] = ap->a_vals[i];
281 vals = &ap->a_nvals[j];
283 /* attribute was completely deleted */
286 if ( !BER_BVISEMPTY( vals )) {
287 rc = bdb_index_values( op, tid, ap->a_desc,
288 vals, e->e_id, SLAP_INDEX_DELETE_OP );
289 if ( rc != LDAP_SUCCESS ) {
290 attrs_free( e->e_attrs );
291 e->e_attrs = save_attrs;
292 Debug( LDAP_DEBUG_ANY,
293 "Attribute index delete failure",
301 /* add the new index entries */
302 for ( ap = e->e_attrs; ap != NULL; ap = ap->a_next ) {
303 if (ap->a_flags & SLAP_ATTR_IXADD) {
304 ap->a_flags &= ~SLAP_ATTR_IXADD;
305 rc = bdb_index_values( op, tid, ap->a_desc,
307 e->e_id, SLAP_INDEX_ADD_OP );
308 if ( rc != LDAP_SUCCESS ) {
309 attrs_free( e->e_attrs );
310 e->e_attrs = save_attrs;
311 Debug( LDAP_DEBUG_ANY,
312 "Attribute index add failure",
324 bdb_modify( Operation *op, SlapReply *rs )
326 struct bdb_info *bdb = (struct bdb_info *) op->o_bd->be_private;
328 EntryInfo *ei = NULL;
329 int manageDSAit = get_manageDSAit( op );
330 char textbuf[SLAP_TEXT_BUFLEN];
331 size_t textlen = sizeof textbuf;
332 DB_TXN *ltid = NULL, *lt2;
333 struct bdb_op_info opinfo = {0};
337 BDB_LOCKER locker = 0;
342 LDAPControl **preread_ctrl = NULL;
343 LDAPControl **postread_ctrl = NULL;
344 LDAPControl *ctrls[SLAP_MAX_RESPONSE_CONTROLS];
353 Debug( LDAP_DEBUG_ARGS, LDAP_XSTRING(bdb_modify) ": %s\n",
354 op->o_req_dn.bv_val, 0, 0 );
357 if( op->o_txnSpec ) {
358 /* acquire connection lock */
359 ldap_pvt_thread_mutex_lock( &op->o_conn->c_mutex );
360 if( op->o_conn->c_txn == CONN_TXN_INACTIVE ) {
361 rs->sr_text = "invalid transaction identifier";
362 rs->sr_err = LDAP_X_TXN_ID_INVALID;
364 } else if( op->o_conn->c_txn == CONN_TXN_SETTLE ) {
369 if( op->o_conn->c_txn_backend == NULL ) {
370 op->o_conn->c_txn_backend = op->o_bd;
372 } else if( op->o_conn->c_txn_backend != op->o_bd ) {
373 rs->sr_text = "transaction cannot span multiple database contexts";
374 rs->sr_err = LDAP_AFFECTS_MULTIPLE_DSAS;
378 /* insert operation into transaction */
380 rs->sr_text = "transaction specified";
381 rs->sr_err = LDAP_X_TXN_SPECIFY_OKAY;
384 /* release connection lock */
385 ldap_pvt_thread_mutex_unlock( &op->o_conn->c_mutex );
388 send_ldap_result( op, rs );
394 ctrls[num_ctrls] = NULL;
396 slap_mods_opattrs( op, &op->orm_modlist, 1 );
399 retry: /* transaction retry */
400 if ( dummy.e_attrs ) {
401 attrs_free( dummy.e_attrs );
402 dummy.e_attrs = NULL;
405 bdb_unlocked_cache_return_entry_w(&bdb->bi_cache, e);
408 Debug(LDAP_DEBUG_TRACE,
409 LDAP_XSTRING(bdb_modify) ": retrying...\n", 0, 0, 0);
411 rs->sr_err = TXN_ABORT( ltid );
413 op->o_private = NULL;
414 op->o_do_not_cache = opinfo.boi_acl_cache;
415 if( rs->sr_err != 0 ) {
416 rs->sr_err = LDAP_OTHER;
417 rs->sr_text = "internal error";
420 if ( op->o_abandon ) {
421 rs->sr_err = SLAPD_ABANDON;
424 bdb_trans_backoff( ++num_retries );
427 /* begin transaction */
428 rs->sr_err = TXN_BEGIN( bdb->bi_dbenv, NULL, <id,
429 bdb->bi_db_opflags );
431 if( rs->sr_err != 0 ) {
432 Debug( LDAP_DEBUG_TRACE,
433 LDAP_XSTRING(bdb_modify) ": txn_begin failed: "
434 "%s (%d)\n", db_strerror(rs->sr_err), rs->sr_err, 0 );
435 rs->sr_err = LDAP_OTHER;
436 rs->sr_text = "internal error";
440 locker = TXN_ID ( ltid );
442 opinfo.boi_bdb = op->o_bd;
443 opinfo.boi_txn = ltid;
444 opinfo.boi_locker = locker;
446 opinfo.boi_acl_cache = op->o_do_not_cache;
447 op->o_private = &opinfo;
449 /* get entry or ancestor */
450 rs->sr_err = bdb_dn2entry( op, ltid, &op->o_req_ndn, &ei, 1,
453 if ( rs->sr_err != 0 ) {
454 Debug( LDAP_DEBUG_TRACE,
455 LDAP_XSTRING(bdb_modify) ": dn2entry failed (%d)\n",
457 switch( rs->sr_err ) {
458 case DB_LOCK_DEADLOCK:
459 case DB_LOCK_NOTGRANTED:
462 if ( BER_BVISEMPTY( &op->o_req_ndn )) {
463 struct berval gluebv = BER_BVC("glue");
464 e = ch_calloc( 1, sizeof(Entry));
465 e->e_name.bv_val = ch_strdup( "" );
466 ber_dupbv( &e->e_nname, &e->e_name );
467 attr_merge_one( e, slap_schema.si_ad_objectClass,
469 attr_merge_one( e, slap_schema.si_ad_structuralObjectClass,
477 rs->sr_text = "ldap server busy";
480 rs->sr_err = LDAP_OTHER;
481 rs->sr_text = "internal error";
490 /* acquire and lock entry */
491 /* FIXME: dn2entry() should return non-glue entry */
492 if (( rs->sr_err == DB_NOTFOUND ) ||
493 ( !manageDSAit && e && is_entry_glue( e )))
496 rs->sr_matched = ch_strdup( e->e_dn );
497 rs->sr_ref = is_entry_referral( e )
498 ? get_entry_referrals( op, e )
500 bdb_unlocked_cache_return_entry_r (&bdb->bi_cache, e);
504 rs->sr_ref = referral_rewrite( default_referral, NULL,
505 &op->o_req_dn, LDAP_SCOPE_DEFAULT );
508 rs->sr_err = LDAP_REFERRAL;
509 send_ldap_result( op, rs );
511 if ( rs->sr_ref != default_referral ) {
512 ber_bvarray_free( rs->sr_ref );
514 free( (char *)rs->sr_matched );
516 rs->sr_matched = NULL;
521 if ( !manageDSAit && is_entry_referral( e ) ) {
522 /* entry is a referral, don't allow modify */
523 rs->sr_ref = get_entry_referrals( op, e );
525 Debug( LDAP_DEBUG_TRACE,
526 LDAP_XSTRING(bdb_modify) ": entry is referral\n",
529 rs->sr_err = LDAP_REFERRAL;
530 rs->sr_matched = e->e_name.bv_val;
531 send_ldap_result( op, rs );
533 ber_bvarray_free( rs->sr_ref );
535 rs->sr_matched = NULL;
539 if ( get_assert( op ) &&
540 ( test_filter( op, e, get_assertion( op )) != LDAP_COMPARE_TRUE ))
542 rs->sr_err = LDAP_ASSERTION_FAILED;
546 if( op->o_preread ) {
547 if( preread_ctrl == NULL ) {
548 preread_ctrl = &ctrls[num_ctrls++];
549 ctrls[num_ctrls] = NULL;
551 if ( slap_read_controls( op, rs, e,
552 &slap_pre_read_bv, preread_ctrl ) )
554 Debug( LDAP_DEBUG_TRACE,
555 "<=- " LDAP_XSTRING(bdb_modify) ": pre-read "
556 "failed!\n", 0, 0, 0 );
557 if ( op->o_preread & SLAP_CONTROL_CRITICAL ) {
558 /* FIXME: is it correct to abort
559 * operation if control fails? */
565 /* nested transaction */
566 rs->sr_err = TXN_BEGIN( bdb->bi_dbenv, ltid, <2, bdb->bi_db_opflags );
568 if( rs->sr_err != 0 ) {
569 Debug( LDAP_DEBUG_TRACE,
570 LDAP_XSTRING(bdb_modify) ": txn_begin(2) failed: " "%s (%d)\n",
571 db_strerror(rs->sr_err), rs->sr_err, 0 );
572 rs->sr_err = LDAP_OTHER;
573 rs->sr_text = "internal error";
576 /* Modify the entry */
578 rs->sr_err = bdb_modify_internal( op, lt2, op->orm_modlist,
579 &dummy, &rs->sr_text, textbuf, textlen );
581 if( rs->sr_err != LDAP_SUCCESS ) {
582 Debug( LDAP_DEBUG_TRACE,
583 LDAP_XSTRING(bdb_modify) ": modify failed (%d)\n",
585 if ( (rs->sr_err == LDAP_INSUFFICIENT_ACCESS) && opinfo.boi_err ) {
586 rs->sr_err = opinfo.boi_err;
588 /* Only free attrs if they were dup'd. */
589 if ( dummy.e_attrs == e->e_attrs ) dummy.e_attrs = NULL;
590 switch( rs->sr_err ) {
591 case DB_LOCK_DEADLOCK:
592 case DB_LOCK_NOTGRANTED:
598 /* change the entry itself */
599 rs->sr_err = bdb_id2entry_update( op->o_bd, lt2, &dummy );
600 if ( rs->sr_err != 0 ) {
601 Debug( LDAP_DEBUG_TRACE,
602 LDAP_XSTRING(bdb_modify) ": id2entry update failed " "(%d)\n",
604 switch( rs->sr_err ) {
605 case DB_LOCK_DEADLOCK:
606 case DB_LOCK_NOTGRANTED:
609 rs->sr_text = "entry update failed";
613 if ( TXN_COMMIT( lt2, 0 ) != 0 ) {
614 rs->sr_err = LDAP_OTHER;
615 rs->sr_text = "txn_commit(2) failed";
619 if( op->o_postread ) {
620 if( postread_ctrl == NULL ) {
621 postread_ctrl = &ctrls[num_ctrls++];
622 ctrls[num_ctrls] = NULL;
624 if( slap_read_controls( op, rs, &dummy,
625 &slap_post_read_bv, postread_ctrl ) )
627 Debug( LDAP_DEBUG_TRACE,
628 "<=- " LDAP_XSTRING(bdb_modify)
629 ": post-read failed!\n", 0, 0, 0 );
630 if ( op->o_postread & SLAP_CONTROL_CRITICAL ) {
631 /* FIXME: is it correct to abort
632 * operation if control fails? */
639 if ( ( rs->sr_err = TXN_ABORT( ltid ) ) != 0 ) {
640 rs->sr_text = "txn_abort (no-op) failed";
642 rs->sr_err = LDAP_X_NO_OPERATION;
644 /* Only free attrs if they were dup'd. */
645 if ( dummy.e_attrs == e->e_attrs ) dummy.e_attrs = NULL;
649 /* may have changed in bdb_modify_internal() */
650 e->e_ocflags = dummy.e_ocflags;
655 attrs_free( dummy.e_attrs );
658 rc = bdb_cache_modify( bdb, e, dummy.e_attrs, locker, &lock );
660 case DB_LOCK_DEADLOCK:
661 case DB_LOCK_NOTGRANTED:
665 dummy.e_attrs = NULL;
667 rs->sr_err = TXN_COMMIT( ltid, 0 );
670 op->o_private = NULL;
672 if( rs->sr_err != 0 ) {
673 Debug( LDAP_DEBUG_TRACE,
674 LDAP_XSTRING(bdb_modify) ": txn_%s failed: %s (%d)\n",
675 op->o_noop ? "abort (no-op)" : "commit",
676 db_strerror(rs->sr_err), rs->sr_err );
677 rs->sr_err = LDAP_OTHER;
678 rs->sr_text = "commit failed";
683 Debug( LDAP_DEBUG_TRACE,
684 LDAP_XSTRING(bdb_modify) ": updated%s id=%08lx dn=\"%s\"\n",
685 op->o_noop ? " (no-op)" : "",
686 dummy.e_id, op->o_req_dn.bv_val );
688 rs->sr_err = LDAP_SUCCESS;
690 if( num_ctrls ) rs->sr_ctrls = ctrls;
693 if( dummy.e_attrs ) {
694 attrs_free( dummy.e_attrs );
696 send_ldap_result( op, rs );
698 if( rs->sr_err == LDAP_SUCCESS && bdb->bi_txn_cp_kbyte ) {
699 TXN_CHECKPOINT( bdb->bi_dbenv,
700 bdb->bi_txn_cp_kbyte, bdb->bi_txn_cp_min, 0 );
704 slap_graduate_commit_csn( op );
709 op->o_private = NULL;
712 bdb_unlocked_cache_return_entry_w (&bdb->bi_cache, e);
715 if( preread_ctrl != NULL && (*preread_ctrl) != NULL ) {
716 slap_sl_free( (*preread_ctrl)->ldctl_value.bv_val, op->o_tmpmemctx );
717 slap_sl_free( *preread_ctrl, op->o_tmpmemctx );
719 if( postread_ctrl != NULL && (*postread_ctrl) != NULL ) {
720 slap_sl_free( (*postread_ctrl)->ldctl_value.bv_val, op->o_tmpmemctx );
721 slap_sl_free( *postread_ctrl, op->o_tmpmemctx );