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.
22 #include <ac/socket.h>
33 char *dn = NULL, *ndn=NULL;
36 struct berval *nvalue;
37 AttributeAssertion ava;
39 int rc = LDAP_SUCCESS;
40 const char *text = NULL;
46 Debug( LDAP_DEBUG_TRACE, "do_compare\n", 0, 0, 0 );
49 * Parse the compare request. It looks like this:
51 * CompareRequest := [APPLICATION 14] SEQUENCE {
52 * entry DistinguishedName,
55 * value AttributeValue
60 if ( ber_scanf( op->o_ber, "{a" /*}*/, &dn ) == LBER_ERROR ) {
61 Debug( LDAP_DEBUG_ANY, "ber_scanf failed\n", 0, 0, 0 );
62 send_ldap_disconnect( conn, op,
63 LDAP_PROTOCOL_ERROR, "decoding error" );
64 return SLAPD_DISCONNECT;
67 if ( ber_scanf( op->o_ber, "{oo}", &desc, &value ) == LBER_ERROR ) {
68 Debug( LDAP_DEBUG_ANY, "do_compare: get ava failed\n", 0, 0, 0 );
69 send_ldap_disconnect( conn, op,
70 LDAP_PROTOCOL_ERROR, "decoding error" );
71 rc = SLAPD_DISCONNECT;
75 if ( ber_scanf( op->o_ber, /*{*/ "}" ) == LBER_ERROR ) {
76 Debug( LDAP_DEBUG_ANY, "ber_scanf failed\n", 0, 0, 0 );
77 send_ldap_disconnect( conn, op,
78 LDAP_PROTOCOL_ERROR, "decoding error" );
79 rc = SLAPD_DISCONNECT;
83 if( ( rc = get_ctrls( conn, op, 1 )) != LDAP_SUCCESS ) {
84 Debug( LDAP_DEBUG_ANY, "do_compare: get_ctrls failed\n", 0, 0, 0 );
88 ndn = ch_strdup( dn );
90 if( dn_normalize( ndn ) == NULL ) {
91 Debug( LDAP_DEBUG_ANY, "do_compare: invalid dn (%s)\n", dn, 0, 0 );
92 send_ldap_result( conn, op, rc = LDAP_INVALID_DN_SYNTAX, NULL,
93 "invalid DN", NULL, NULL );
97 rc = slap_bv2ad( &desc, &ava.aa_desc, &text );
98 if( rc != LDAP_SUCCESS ) {
99 send_ldap_result( conn, op, rc, NULL,
104 if( !ava.aa_desc->ad_type->sat_equality ) {
105 /* no equality matching rule */
106 send_ldap_result( conn, op, rc = LDAP_INAPPROPRIATE_MATCHING, NULL,
107 "no equality matching rule defined", NULL, NULL );
111 rc = value_normalize( ava.aa_desc, SLAP_MR_EQUALITY, &value, &nvalue, &text );
113 if( rc != LDAP_SUCCESS ) {
114 send_ldap_result( conn, op, rc, NULL,
119 ava.aa_value = nvalue;
121 Debug( LDAP_DEBUG_ARGS, "do_compare: dn (%s) attr (%s) value (%s)\n",
122 dn, ava.aa_desc->ad_cname->bv_val, ava.aa_value->bv_val );
124 Statslog( LDAP_DEBUG_STATS, "conn=%ld op=%d CMP dn=\"%s\" attr=\"%s\"\n",
125 op->o_connid, op->o_opid, dn, ava.aa_desc->ad_cname->bv_val, 0 );
130 * We could be serving multiple database backends. Select the
131 * appropriate one, or send a referral to our "referral server"
132 * if we don't hold it.
134 if ( (be = select_backend( ndn )) == NULL ) {
135 send_ldap_result( conn, op, rc = LDAP_REFERRAL,
136 NULL, NULL, default_referral, NULL );
141 /* make sure this backend recongizes critical controls */
142 rc = backend_check_controls( be, conn, op, &text ) ;
144 if( rc != LDAP_SUCCESS ) {
145 send_ldap_result( conn, op, rc,
146 NULL, text, NULL, NULL );
150 /* deref suffix alias if appropriate */
151 ndn = suffix_alias( be, ndn );
153 if ( be->be_compare ) {
154 (*be->be_compare)( be, conn, op, dn, ndn, &ava );
156 send_ldap_result( conn, op, rc = LDAP_UNWILLING_TO_PERFORM,
157 NULL, "operation not supported within namingContext", NULL, NULL );
164 free( value.bv_val );
165 if( ava.aa_desc != NULL ) {
166 ad_free( ava.aa_desc, 1 );