openldap/servers/slapd/back-ldap/compare.c

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/* compare.c - ldap backend compare function */
/* $OpenLDAP$ */
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/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
*
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* Copyright 2003-2004 The OpenLDAP Foundation.
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* Portions Copyright 1999-2003 Howard Chu.
* Portions Copyright 2000-2003 Pierangelo Masarati.
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* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted only as authorized by the OpenLDAP
* Public License.
*
* A copy of this license is available in the file LICENSE in the
* top-level directory of the distribution or, alternatively, at
* <http://www.OpenLDAP.org/license.html>.
*/
/* ACKNOWLEDGEMENTS:
* This work was initially developed by the Howard Chu for inclusion
* in OpenLDAP Software and subsequently enhanced by Pierangelo
* Masarati.
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*/
#include "portable.h"
#include <stdio.h>
#include <ac/string.h>
#include <ac/socket.h>
#include "slap.h"
#include "back-ldap.h"
int
ldap_back_compare(
Operation *op,
SlapReply *rs )
{
struct ldapinfo *li = (struct ldapinfo *) op->o_bd->be_private;
struct ldapconn *lc;
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struct berval mapped_at = BER_BVNULL, mapped_val = BER_BVNULL;
struct berval mdn = BER_BVNULL;
ber_int_t msgid;
int freeval = 0;
dncookie dc;
#ifdef LDAP_BACK_PROXY_AUTHZ
LDAPControl **ctrls = NULL;
int rc = LDAP_SUCCESS;
#endif /* LDAP_BACK_PROXY_AUTHZ */
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lc = ldap_back_getconn(op, rs);
if (!lc || !ldap_back_dobind( lc, op, rs ) ) {
return( -1 );
}
/*
* Rewrite the compare dn, if needed
*/
dc.rwmap = &li->rwmap;
#ifdef ENABLE_REWRITE
dc.conn = op->o_conn;
dc.rs = rs;
dc.ctx = "compareDN";
#else
dc.tofrom = 1;
dc.normalized = 0;
#endif
if ( ldap_back_dn_massage( &dc, &op->o_req_ndn, &mdn ) ) {
send_ldap_result( op, rs );
return -1;
}
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if ( op->orc_ava->aa_desc == slap_schema.si_ad_objectClass
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|| op->orc_ava->aa_desc == slap_schema.si_ad_structuralObjectClass ) {
ldap_back_map(&li->rwmap.rwm_oc, &op->orc_ava->aa_value,
&mapped_val, BACKLDAP_MAP);
if (mapped_val.bv_val == NULL || mapped_val.bv_val[0] == '\0') {
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return( -1 );
}
mapped_at = op->orc_ava->aa_desc->ad_cname;
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} else {
ldap_back_map(&li->rwmap.rwm_at,
&op->orc_ava->aa_desc->ad_cname, &mapped_at,
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BACKLDAP_MAP);
if (mapped_at.bv_val == NULL || mapped_at.bv_val[0] == '\0') {
return( -1 );
}
if (op->orc_ava->aa_desc->ad_type->sat_syntax == slap_schema.si_syn_distinguishedName ) {
#ifdef ENABLE_REWRITE
dc.ctx = "compareAttrDN";
#endif
ldap_back_dn_massage( &dc, &op->orc_ava->aa_value, &mapped_val );
if (mapped_val.bv_val == NULL || mapped_val.bv_val[0] == '\0') {
mapped_val = op->orc_ava->aa_value;
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} else if (mapped_val.bv_val != op->orc_ava->aa_value.bv_val) {
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freeval = 1;
}
} else {
mapped_val = op->orc_ava->aa_value;
}
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}
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#ifdef LDAP_BACK_PROXY_AUTHZ
rc = ldap_back_proxy_authz_ctrl( lc, op, rs, &ctrls );
if ( rc != LDAP_SUCCESS ) {
goto cleanup;
}
#endif /* LDAP_BACK_PROXY_AUTHZ */
rs->sr_err = ldap_compare_ext( lc->ld, mdn.bv_val,
mapped_at.bv_val, &mapped_val,
#ifdef LDAP_BACK_PROXY_AUTHZ
ctrls,
#else /* ! LDAP_BACK_PROXY_AUTHZ */
op->o_ctrls,
#endif /* ! LDAP_BACK_PROXY_AUTHZ */
NULL, &msgid );
#ifdef LDAP_BACK_PROXY_AUTHZ
cleanup:
if ( ctrls && ctrls != op->o_ctrls ) {
free( ctrls[ 0 ] );
free( ctrls );
}
#endif /* LDAP_BACK_PROXY_AUTHZ */
if ( mdn.bv_val != op->o_req_ndn.bv_val ) {
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free( mdn.bv_val );
}
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if ( freeval ) {
free( mapped_val.bv_val );
}
#ifdef LDAP_BACK_PROXY_AUTHZ
if ( rc != LDAP_SUCCESS ) {
send_ldap_result( op, rs );
return -1;
}
#endif /* LDAP_BACK_PROXY_AUTHZ */
return( ldap_back_op_result( lc, op, rs, msgid, 1 ) );
}