3 * Copyright 1998-2000 The OpenLDAP Foundation, All Rights Reserved.
4 * COPYING RESTRICTIONS APPLY, see COPYRIGHT file
7 * Copyright (c) 1995 Regents of the University of Michigan.
10 * Redistribution and use in source and binary forms are permitted
11 * provided that this notice is preserved and that due credit is given
12 * to the University of Michigan at Ann Arbor. The name of the University
13 * may not be used to endorse or promote products derived from this
14 * software without specific prior written permission. This software
15 * is provided ``as is'' without express or implied warranty.
21 #include <ac/socket.h>
32 char *dn = NULL, *ndn=NULL;
35 struct berval *nvalue;
36 AttributeAssertion ava;
38 int rc = LDAP_SUCCESS;
39 const char *text = NULL;
47 LDAP_LOG(( "operation", LDAP_LEVEL_ENTRY,
48 "do_compare: conn %d\n", conn->c_connid ));
50 Debug( LDAP_DEBUG_TRACE, "do_compare\n", 0, 0, 0 );
53 * Parse the compare request. It looks like this:
55 * CompareRequest := [APPLICATION 14] SEQUENCE {
56 * entry DistinguishedName,
59 * value AttributeValue
64 if ( ber_scanf( op->o_ber, "{a" /*}*/, &dn ) == LBER_ERROR ) {
66 LDAP_LOG(( "operation", LDAP_LEVEL_ERR,
67 "do_compare: conn %d ber_scanf failed\n", conn->c_connid ));
69 Debug( LDAP_DEBUG_ANY, "ber_scanf failed\n", 0, 0, 0 );
71 send_ldap_disconnect( conn, op,
72 LDAP_PROTOCOL_ERROR, "decoding error" );
73 return SLAPD_DISCONNECT;
76 if ( ber_scanf( op->o_ber, "{oo}", &desc, &value ) == LBER_ERROR ) {
78 LDAP_LOG(( "operation", LDAP_LEVEL_ERR,
79 "do_compare: conn %d get ava failed\n", conn->c_connid ));
81 Debug( LDAP_DEBUG_ANY, "do_compare: get ava failed\n", 0, 0, 0 );
83 send_ldap_disconnect( conn, op,
84 LDAP_PROTOCOL_ERROR, "decoding error" );
85 rc = SLAPD_DISCONNECT;
89 if ( ber_scanf( op->o_ber, /*{*/ "}" ) == LBER_ERROR ) {
91 LDAP_LOG(( "operation", LDAP_LEVEL_ERR,
92 "do_compare: conn %d ber_scanf failed\n", conn->c_connid ));
94 Debug( LDAP_DEBUG_ANY, "ber_scanf failed\n", 0, 0, 0 );
96 send_ldap_disconnect( conn, op,
97 LDAP_PROTOCOL_ERROR, "decoding error" );
98 rc = SLAPD_DISCONNECT;
102 if( ( rc = get_ctrls( conn, op, 1 )) != LDAP_SUCCESS ) {
104 LDAP_LOG(( "operation", LDAP_LEVEL_INFO,
105 "do_compare: conn %d get_ctrls failed\n", conn->c_connid ));
107 Debug( LDAP_DEBUG_ANY, "do_compare: get_ctrls failed\n", 0, 0, 0 );
112 ndn = ch_strdup( dn );
114 if( dn_normalize( ndn ) == NULL ) {
116 LDAP_LOG(( "operation", LDAP_LEVEL_INFO,
117 "do_compare: conn %d invalid dn (%s)\n",
118 conn->c_connid, dn ));
120 Debug( LDAP_DEBUG_ANY, "do_compare: invalid dn (%s)\n", dn, 0, 0 );
122 send_ldap_result( conn, op, rc = LDAP_INVALID_DN_SYNTAX, NULL,
123 "invalid DN", NULL, NULL );
129 LDAP_LOG(( "operation", LDAP_LEVEL_DETAIL1,
130 "do_compare: conn %d compare to root DSE!\n",
133 Debug( LDAP_DEBUG_ANY, "do_compare: root dse!\n", 0, 0, 0 );
135 send_ldap_result( conn, op, rc = LDAP_UNWILLING_TO_PERFORM,
136 NULL, "compare upon the root DSE not supported", NULL, NULL );
140 manageDSAit = get_manageDSAit( op );
143 * We could be serving multiple database backends. Select the
144 * appropriate one, or send a referral to our "referral server"
145 * if we don't hold it.
147 if ( (be = select_backend( ndn, manageDSAit )) == NULL ) {
148 send_ldap_result( conn, op, rc = LDAP_REFERRAL,
149 NULL, NULL, default_referral, NULL );
154 /* check restrictions */
155 rc = backend_check_restrictions( be, conn, op, NULL, &text ) ;
156 if( rc != LDAP_SUCCESS ) {
157 send_ldap_result( conn, op, rc,
158 NULL, text, NULL, NULL );
162 /* check for referrals */
163 rc = backend_check_referrals( be, conn, op, dn, ndn );
164 if ( rc != LDAP_SUCCESS ) {
168 rc = slap_bv2ad( &desc, &ava.aa_desc, &text );
169 if( rc != LDAP_SUCCESS ) {
170 send_ldap_result( conn, op, rc, NULL,
175 if( !ava.aa_desc->ad_type->sat_equality ) {
176 /* no equality matching rule */
177 send_ldap_result( conn, op, rc = LDAP_INAPPROPRIATE_MATCHING, NULL,
178 "no equality matching rule defined", NULL, NULL );
182 rc = value_normalize( ava.aa_desc, SLAP_MR_EQUALITY, &value, &nvalue, &text );
184 if( rc != LDAP_SUCCESS ) {
185 send_ldap_result( conn, op, rc, NULL,
190 ava.aa_value = nvalue;
193 LDAP_LOG(( "operation", LDAP_LEVEL_ARGS,
194 "do_compare: conn %d dn (%s) attr(%s) value (%s)\n",
195 conn->c_connid, dn, ava.aa_desc->ad_cname->bv_val,
196 ava.aa_value->bv_val ));
198 Debug( LDAP_DEBUG_ARGS, "do_compare: dn (%s) attr (%s) value (%s)\n",
199 dn, ava.aa_desc->ad_cname->bv_val, ava.aa_value->bv_val );
202 Statslog( LDAP_DEBUG_STATS, "conn=%ld op=%d CMP dn=\"%s\" attr=\"%s\"\n",
203 op->o_connid, op->o_opid, dn, ava.aa_desc->ad_cname->bv_val, 0 );
206 /* deref suffix alias if appropriate */
207 ndn = suffix_alias( be, ndn );
209 if ( be->be_compare ) {
210 (*be->be_compare)( be, conn, op, dn, ndn, &ava );
212 send_ldap_result( conn, op, rc = LDAP_UNWILLING_TO_PERFORM,
213 NULL, "operation not supported within namingContext", NULL, NULL );
220 free( value.bv_val );
221 if( ava.aa_desc != NULL ) {
222 ad_free( ava.aa_desc, 1 );