1 /* mra.c - routines for dealing with extensible matching rule assertions */
3 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
5 * Copyright 1998-2005 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>.
21 #include <ac/string.h>
22 #include <ac/socket.h>
26 #ifdef LDAP_COMP_MATCH
27 #include "component.h"
33 MatchingRuleAssertion *mra,
36 #ifdef LDAP_COMP_MATCH
37 /* free component assertion */
38 if ( mra->ma_rule->smr_usage & SLAP_MR_COMPONENT && mra->ma_cf ) {
39 component_free( mra->ma_cf );
42 /* op->o_tmpfree( mra->ma_value.bv_val, op->o_tmpmemctx ); */
43 ch_free( mra->ma_value.bv_val );
44 if ( freeit ) op->o_tmpfree( (char *) mra, op->o_tmpmemctx );
51 MatchingRuleAssertion **mra,
57 struct berval type = BER_BVNULL;
58 struct berval value = BER_BVNULL;
59 struct berval rule_text = BER_BVNULL;
60 MatchingRuleAssertion ma;
61 #ifdef LDAP_COMP_MATCH
62 AttributeAliasing* aa = NULL;
65 memset( &ma, 0, sizeof ma);
67 rtag = ber_scanf( ber, "{t" /*"}"*/, &tag );
69 if( rtag == LBER_ERROR ) {
70 Debug( LDAP_DEBUG_ANY, " get_mra ber_scanf\n", 0, 0, 0 );
72 *text = "Error parsing matching rule assertion";
73 return SLAPD_DISCONNECT;
76 if ( tag == LDAP_FILTER_EXT_OID ) {
77 rtag = ber_scanf( ber, "m", &rule_text );
78 if ( rtag == LBER_ERROR ) {
79 Debug( LDAP_DEBUG_ANY, " get_mra ber_scanf for mr\n", 0, 0, 0 );
81 *text = "Error parsing matching rule in matching rule assertion";
82 return SLAPD_DISCONNECT;
85 rtag = ber_scanf( ber, "t", &tag );
86 if( rtag == LBER_ERROR ) {
87 Debug( LDAP_DEBUG_ANY, " get_mra ber_scanf\n", 0, 0, 0 );
89 *text = "Error parsing matching rule assertion";
90 return SLAPD_DISCONNECT;
94 if ( tag == LDAP_FILTER_EXT_TYPE ) {
95 rtag = ber_scanf( ber, "m", &type );
96 if ( rtag == LBER_ERROR ) {
97 Debug( LDAP_DEBUG_ANY, " get_mra ber_scanf for ad\n", 0, 0, 0 );
99 *text = "Error parsing attribute description in matching rule assertion";
100 return SLAPD_DISCONNECT;
103 rtag = ber_scanf( ber, "t", &tag );
104 if( rtag == LBER_ERROR ) {
105 Debug( LDAP_DEBUG_ANY, " get_mra ber_scanf\n", 0, 0, 0 );
107 *text = "Error parsing matching rule assertion";
108 return SLAPD_DISCONNECT;
112 if ( tag != LDAP_FILTER_EXT_VALUE ) {
113 Debug( LDAP_DEBUG_ANY, " get_mra ber_scanf missing value\n", 0, 0, 0 );
115 *text = "Missing value in matching rule assertion";
116 return SLAPD_DISCONNECT;
119 rtag = ber_scanf( ber, "m", &value );
121 if( rtag == LBER_ERROR ) {
122 Debug( LDAP_DEBUG_ANY, " get_mra ber_scanf\n", 0, 0, 0 );
124 *text = "Error decoding value in matching rule assertion";
125 return SLAPD_DISCONNECT;
128 tag = ber_peek_tag( ber, &length );
130 if ( tag == LDAP_FILTER_EXT_DNATTRS ) {
131 rtag = ber_scanf( ber, /*"{"*/ "b}", &ma.ma_dnattrs );
133 rtag = ber_scanf( ber, /*"{"*/ "}" );
136 if( rtag == LBER_ERROR ) {
137 Debug( LDAP_DEBUG_ANY, " get_mra ber_scanf\n", 0, 0, 0 );
139 *text = "Error decoding dnattrs matching rule assertion";
140 return SLAPD_DISCONNECT;
143 if( type.bv_val != NULL ) {
144 rc = slap_bv2ad( &type, &ma.ma_desc, text );
145 if( rc != LDAP_SUCCESS ) {
150 if( rule_text.bv_val != NULL ) {
151 ma.ma_rule = mr_bvfind( &rule_text );
152 if( ma.ma_rule == NULL ) {
153 *text = "matching rule not recognized";
154 return LDAP_INAPPROPRIATE_MATCHING;
158 if ( ma.ma_rule == NULL ) {
160 * Need either type or rule ...
162 if ( ma.ma_desc == NULL ) {
163 *text = "no matching rule or type";
164 return LDAP_INAPPROPRIATE_MATCHING;
167 if ( ma.ma_desc->ad_type->sat_equality != NULL &&
168 ma.ma_desc->ad_type->sat_equality->smr_usage & SLAP_MR_EXT )
170 /* no matching rule was provided, use the attribute's
171 equality rule if it supports extensible matching. */
172 ma.ma_rule = ma.ma_desc->ad_type->sat_equality;
175 *text = "no appropriate rule to use for type";
176 return LDAP_INAPPROPRIATE_MATCHING;
180 if ( ma.ma_desc != NULL ) {
181 if( !mr_usable_with_at( ma.ma_rule, ma.ma_desc->ad_type ) ) {
182 *text = "matching rule use with this attribute not appropriate";
183 return LDAP_INAPPROPRIATE_MATCHING;
189 * Normalize per matching rule
191 rc = asserted_value_validate_normalize( ma.ma_desc,
193 SLAP_MR_EXT|SLAP_MR_VALUE_OF_ASSERTION_SYNTAX,
194 &value, &ma.ma_value, text, op->o_tmpmemctx );
196 if( rc != LDAP_SUCCESS ) return rc;
198 #ifdef LDAP_COMP_MATCH
199 /* Check If this attribute is aliased */
200 if ( is_aliased_attribute && ma.ma_desc && ( aa = is_aliased_attribute ( ma.ma_desc ) ) ) {
201 rc = get_aliased_filter ( op, &ma, aa, text );
202 if ( rc != LDAP_SUCCESS ) return rc;
204 else if ( ma.ma_rule && ma.ma_rule->smr_usage & SLAP_MR_COMPONENT ) {
205 /* Matching Rule for Component Matching */
206 rc = get_comp_filter( op, &ma.ma_value, &ma.ma_cf, text );
207 if ( rc != LDAP_SUCCESS ) return rc;
212 /* Append rule_text to end of struct */
213 if (rule_text.bv_val) length += rule_text.bv_len + 1;
214 *mra = op->o_tmpalloc( length, op->o_tmpmemctx );
216 if (rule_text.bv_val) {
217 (*mra)->ma_rule_text.bv_len = rule_text.bv_len;
218 (*mra)->ma_rule_text.bv_val = (char *)(*mra+1);
219 AC_MEMCPY((*mra)->ma_rule_text.bv_val, rule_text.bv_val,