1 /* filterentry.c - apply a filter to an entry */
3 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
5 * Copyright 1998-2003 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>.
16 /* Portions Copyright (c) 1995 Regents of the University of Michigan.
17 * All rights reserved.
19 * Redistribution and use in source and binary forms are permitted
20 * provided that this notice is preserved and that due credit is given
21 * to the University of Michigan at Ann Arbor. The name of the University
22 * may not be used to endorse or promote products derived from this
23 * software without specific prior written permission. This software
24 * is provided ``as is'' without express or implied warranty.
31 #include <ac/socket.h>
32 #include <ac/string.h>
37 static int test_filter_and( Operation *op, Entry *e, Filter *flist );
38 static int test_filter_or( Operation *op, Entry *e, Filter *flist );
39 static int test_substrings_filter( Operation *op, Entry *e, Filter *f);
40 static int test_ava_filter( Operation *op, Entry *e, AttributeAssertion *ava, int type );
41 static int test_mra_filter( Operation *op, Entry *e, MatchingRuleAssertion *mra );
42 static int test_presence_filter( Operation *op, Entry *e, AttributeDescription *desc );
46 * test_filter - test a filter against a single entry.
48 * LDAP_COMPARE_TRUE filter matched
49 * LDAP_COMPARE_FALSE filter did not match
50 * SLAPD_COMPARE_UNDEFINED filter is undefined
51 * or an ldap result code indicating error
63 LDAP_LOG( FILTER, ENTRY, "test_filter: begin\n", 0, 0, 0 );
65 Debug( LDAP_DEBUG_FILTER, "=> test_filter\n", 0, 0, 0 );
68 switch ( f->f_choice ) {
69 case SLAPD_FILTER_COMPUTED:
71 LDAP_LOG( FILTER, DETAIL1,
72 "test_filter: COMPUTED %s (%d)\n",
73 f->f_result == LDAP_COMPARE_FALSE ? "false" :
74 f->f_result == LDAP_COMPARE_TRUE ? "true" :
75 f->f_result == SLAPD_COMPARE_UNDEFINED ? "undefined" :
76 "error", f->f_result, 0 );
78 Debug( LDAP_DEBUG_FILTER, " COMPUTED %s (%d)\n",
79 f->f_result == LDAP_COMPARE_FALSE ? "false" :
80 f->f_result == LDAP_COMPARE_TRUE ? "true" :
81 f->f_result == SLAPD_COMPARE_UNDEFINED ? "undefined" : "error",
88 case LDAP_FILTER_EQUALITY:
90 LDAP_LOG( FILTER, DETAIL1, "test_filter: EQUALITY\n", 0, 0, 0 );
92 Debug( LDAP_DEBUG_FILTER, " EQUALITY\n", 0, 0, 0 );
95 rc = test_ava_filter( op, e, f->f_ava,
96 LDAP_FILTER_EQUALITY );
99 case LDAP_FILTER_SUBSTRINGS:
101 LDAP_LOG( FILTER, DETAIL1, "test_filter SUBSTRINGS\n", 0, 0, 0 );
103 Debug( LDAP_DEBUG_FILTER, " SUBSTRINGS\n", 0, 0, 0 );
106 rc = test_substrings_filter( op, e, f );
110 rc = test_ava_filter( op, e, f->f_ava,
115 rc = test_ava_filter( op, e, f->f_ava,
119 case LDAP_FILTER_PRESENT:
121 LDAP_LOG( FILTER, DETAIL1, "test_filter: PRESENT\n", 0, 0, 0 );
123 Debug( LDAP_DEBUG_FILTER, " PRESENT\n", 0, 0, 0 );
126 rc = test_presence_filter( op, e, f->f_desc );
129 case LDAP_FILTER_APPROX:
131 LDAP_LOG( FILTER, DETAIL1, "test_filter: APPROX\n", 0, 0, 0 );
133 Debug( LDAP_DEBUG_FILTER, " APPROX\n", 0, 0, 0 );
135 rc = test_ava_filter( op, e, f->f_ava,
136 LDAP_FILTER_APPROX );
139 case LDAP_FILTER_AND:
141 LDAP_LOG( FILTER, DETAIL1, "test_filter: AND\n", 0, 0, 0 );
143 Debug( LDAP_DEBUG_FILTER, " AND\n", 0, 0, 0 );
146 rc = test_filter_and( op, e, f->f_and );
151 LDAP_LOG( FILTER, DETAIL1, "test_filter: OR\n", 0, 0, 0 );
153 Debug( LDAP_DEBUG_FILTER, " OR\n", 0, 0, 0 );
156 rc = test_filter_or( op, e, f->f_or );
159 case LDAP_FILTER_NOT:
161 LDAP_LOG( FILTER, DETAIL1, "test_filter: NOT\n", 0, 0, 0 );
163 Debug( LDAP_DEBUG_FILTER, " NOT\n", 0, 0, 0 );
166 rc = test_filter( op, e, f->f_not );
168 /* Flip true to false and false to true
169 * but leave Undefined alone.
172 case LDAP_COMPARE_TRUE:
173 rc = LDAP_COMPARE_FALSE;
175 case LDAP_COMPARE_FALSE:
176 rc = LDAP_COMPARE_TRUE;
181 case LDAP_FILTER_EXT:
183 LDAP_LOG( FILTER, DETAIL1, "test_filter: EXT\n", 0, 0, 0 );
185 Debug( LDAP_DEBUG_FILTER, " EXT\n", 0, 0, 0 );
188 rc = test_mra_filter( op, e, f->f_mra );
193 LDAP_LOG( FILTER, INFO,
194 "test_filter: unknown filter type %lu\n", f->f_choice, 0, 0 );
196 Debug( LDAP_DEBUG_ANY, " unknown filter type %lu\n",
200 rc = LDAP_PROTOCOL_ERROR;
204 LDAP_LOG( FILTER, RESULTS, "test_filter: return=%d\n", rc, 0, 0 );
206 Debug( LDAP_DEBUG_FILTER, "<= test_filter %d\n", rc, 0, 0 );
212 static int test_mra_filter(
215 MatchingRuleAssertion *mra )
218 void *memctx = op ? op->o_tmpmemctx : NULL;
220 if ( mra->ma_desc ) {
222 * if ma_desc is available, then we're filtering for
223 * one attribute, and SEARCH permissions can be checked
226 if( !access_allowed( op, e,
227 mra->ma_desc, &mra->ma_value, ACL_SEARCH, NULL ) )
229 return LDAP_INSUFFICIENT_ACCESS;
232 for(a = attrs_find( e->e_attrs, mra->ma_desc );
234 a = attrs_find( a->a_next, mra->ma_desc ) )
237 /* If ma_rule is not the same as the attribute's
238 * normal rule, then we can't use the a_nvals.
240 if (mra->ma_rule == a->a_desc->ad_type->sat_equality) {
246 for ( ; bv->bv_val != NULL; bv++ ) {
251 rc = value_match( &ret, a->a_desc, mra->ma_rule, 0,
252 bv, &mra->ma_value, &text );
254 if( rc != LDAP_SUCCESS ) {
259 return LDAP_COMPARE_TRUE;
266 * No attribute description: test all
268 for ( a = e->e_attrs; a != NULL; a = a->a_next ) {
269 struct berval *bv, value;
270 const char *text = NULL;
273 /* check if matching is appropriate */
274 if ( !mr_usable_with_at( mra->ma_rule, a->a_desc->ad_type )) {
278 /* normalize for equality */
279 rc = asserted_value_validate_normalize( a->a_desc, mra->ma_rule,
280 SLAP_MR_EXT|SLAP_MR_VALUE_OF_ASSERTION_SYNTAX,
281 &mra->ma_value, &value, &text, memctx );
282 if ( rc != LDAP_SUCCESS ) {
286 /* check search access */
287 if ( !access_allowed( op, e,
288 a->a_desc, &value, ACL_SEARCH, NULL ) ) {
293 if (mra->ma_rule == a->a_desc->ad_type->sat_equality)
297 for ( ; bv->bv_val != NULL; bv++ )
302 rc = value_match( &ret, a->a_desc, mra->ma_rule, 0,
305 if( rc != LDAP_SUCCESS ) {
310 return LDAP_COMPARE_TRUE;
316 /* check attrs in DN AVAs if required */
317 if ( mra->ma_dnattrs ) {
322 /* parse and pretty the dn */
323 rc = dnPrettyDN( NULL, &e->e_name, &dn, memctx );
324 if ( rc != LDAP_SUCCESS ) {
325 return LDAP_INVALID_SYNTAX;
328 /* for each AVA of each RDN ... */
329 for ( iRDN = 0; dn[ iRDN ]; iRDN++ ) {
330 LDAPRDN rdn = dn[ iRDN ];
332 for ( iAVA = 0; rdn[ iAVA ]; iAVA++ ) {
333 LDAPAVA *ava = rdn[ iAVA ];
334 struct berval *bv = &ava->la_value, value;
335 AttributeDescription *ad = (AttributeDescription *)ava->la_private;
342 if ( mra->ma_desc ) {
343 /* have a mra type? check for subtype */
344 if ( !is_ad_subtype( ad, mra->ma_desc ) ) {
347 value = mra->ma_value;
350 const char *text = NULL;
352 /* check if matching is appropriate */
353 if ( !mr_usable_with_at( mra->ma_rule, ad->ad_type )) {
357 /* normalize for equality */
358 rc = asserted_value_validate_normalize( ad,
360 SLAP_MR_EXT|SLAP_MR_VALUE_OF_ASSERTION_SYNTAX,
361 &mra->ma_value, &value, &text, memctx );
362 if ( rc != LDAP_SUCCESS ) {
366 /* check search access */
367 if ( !access_allowed( op, e,
368 ad, &value, ACL_SEARCH, NULL ) ) {
374 rc = value_match( &ret, ad, mra->ma_rule, 0,
377 if( rc != LDAP_SUCCESS ) {
378 ldap_dnfree_x( dn, memctx );
383 ldap_dnfree_x( dn, memctx );
384 return LDAP_COMPARE_TRUE;
390 return LDAP_COMPARE_FALSE;
397 AttributeAssertion *ava,
403 if ( !access_allowed( op, e,
404 ava->aa_desc, &ava->aa_value, ACL_SEARCH, NULL ) )
406 return LDAP_INSUFFICIENT_ACCESS;
409 for(a = attrs_find( e->e_attrs, ava->aa_desc );
411 a = attrs_find( a->a_next, ava->aa_desc ) )
417 case LDAP_FILTER_APPROX:
418 mr = a->a_desc->ad_type->sat_approx;
419 if( mr != NULL ) break;
421 /* use EQUALITY matching rule if no APPROX rule */
423 case LDAP_FILTER_EQUALITY:
424 mr = a->a_desc->ad_type->sat_equality;
429 mr = a->a_desc->ad_type->sat_ordering;
440 for ( bv = a->a_nvals; bv->bv_val != NULL; bv++ )
446 rc = value_match( &ret, a->a_desc, mr, 0,
447 bv, &ava->aa_value, &text );
449 if( rc != LDAP_SUCCESS ) {
454 case LDAP_FILTER_EQUALITY:
455 case LDAP_FILTER_APPROX:
457 return LDAP_COMPARE_TRUE;
463 return LDAP_COMPARE_TRUE;
469 return LDAP_COMPARE_TRUE;
476 if ( ava->aa_desc == slap_schema.si_ad_hasSubordinates
477 && op && op->o_bd && op->o_bd->be_has_subordinates ) {
482 * No other match should be allowed ...
484 assert( type == LDAP_FILTER_EQUALITY );
486 if (op->o_bd->be_has_subordinates( op, e, &hasSubordinates ) != LDAP_SUCCESS) {
490 if ( hasSubordinates == LDAP_COMPARE_TRUE ) {
493 } else if ( hasSubordinates == LDAP_COMPARE_FALSE ) {
500 if ( bvmatch( &ava->aa_value, &hs ) ) {
501 return LDAP_COMPARE_TRUE;
504 return LDAP_COMPARE_FALSE;
507 return( LDAP_COMPARE_FALSE );
512 test_presence_filter(
515 AttributeDescription *desc
520 if ( !access_allowed( op, e, desc, NULL, ACL_SEARCH, NULL ) )
522 return LDAP_INSUFFICIENT_ACCESS;
525 a = attrs_find( e->e_attrs, desc );
527 if ( a == NULL && desc == slap_schema.si_ad_hasSubordinates ) {
530 * XXX: fairly optimistic: if the function is defined,
531 * then PRESENCE must succeed, because hasSubordinate
532 * is boolean-valued; I think we may live with this
533 * simplification by now
535 if ( op && op->o_bd && op->o_bd->be_has_subordinates ) {
536 return LDAP_COMPARE_TRUE;
539 return LDAP_COMPARE_FALSE;
542 return a != NULL ? LDAP_COMPARE_TRUE : LDAP_COMPARE_FALSE;
554 int rtn = LDAP_COMPARE_TRUE; /* True if empty */
557 LDAP_LOG( FILTER, ENTRY, "test_filter_and: begin\n", 0, 0, 0 );
559 Debug( LDAP_DEBUG_FILTER, "=> test_filter_and\n", 0, 0, 0 );
563 for ( f = flist; f != NULL; f = f->f_next ) {
564 int rc = test_filter( op, e, f );
566 if ( rc == LDAP_COMPARE_FALSE ) {
567 /* filter is False */
572 if ( rc != LDAP_COMPARE_TRUE ) {
573 /* filter is Undefined unless later elements are False */
579 LDAP_LOG( FILTER, RESULTS, "test_filter_and: rc=%d\n", rtn, 0, 0 );
581 Debug( LDAP_DEBUG_FILTER, "<= test_filter_and %d\n", rtn, 0, 0 );
595 int rtn = LDAP_COMPARE_FALSE; /* False if empty */
598 LDAP_LOG( FILTER, ENTRY, "test_filter_or: begin\n", 0, 0, 0 );
600 Debug( LDAP_DEBUG_FILTER, "=> test_filter_or\n", 0, 0, 0 );
604 for ( f = flist; f != NULL; f = f->f_next ) {
605 int rc = test_filter( op, e, f );
607 if ( rc == LDAP_COMPARE_TRUE ) {
613 if ( rc != LDAP_COMPARE_FALSE ) {
614 /* filter is Undefined unless later elements are True */
620 LDAP_LOG( FILTER, ENTRY, "test_filter_or: result=%d\n", rtn, 0, 0 );
622 Debug( LDAP_DEBUG_FILTER, "<= test_filter_or %d\n", rtn, 0, 0 );
630 test_substrings_filter(
639 LDAP_LOG( FILTER, ENTRY, "test_substrings_filter: begin\n", 0, 0, 0 );
641 Debug( LDAP_DEBUG_FILTER, "begin test_substrings_filter\n", 0, 0, 0 );
645 if ( !access_allowed( op, e,
646 f->f_sub_desc, NULL, ACL_SEARCH, NULL ) )
648 return LDAP_INSUFFICIENT_ACCESS;
651 for(a = attrs_find( e->e_attrs, f->f_sub_desc );
653 a = attrs_find( a->a_next, f->f_sub_desc ) )
655 MatchingRule *mr = a->a_desc->ad_type->sat_substr;
662 for ( bv = a->a_nvals; bv->bv_val != NULL; bv++ )
668 rc = value_match( &ret, a->a_desc, mr, 0,
669 bv, f->f_sub, &text );
671 if( rc != LDAP_SUCCESS ) {
676 return LDAP_COMPARE_TRUE;
682 LDAP_LOG( FILTER, ENTRY, "test_substrings_filter: return FALSE\n", 0, 0, 0 );
684 Debug( LDAP_DEBUG_FILTER, "end test_substrings_filter 1\n", 0, 0, 0 );
687 return LDAP_COMPARE_FALSE;