mirror of
https://git.openldap.org/openldap/openldap.git
synced 2024-12-21 03:10:25 +08:00
a5abeb92ec
OpenLDAP Software (though they may not necessarily be supported by the OpenLDAP Project). Assistance in updating ACKNOWLEDGEMENTS welcomed.
129 lines
3.4 KiB
C
129 lines
3.4 KiB
C
/* proxyOld.c - module for supporting obsolete (rev 05) proxyAuthz control */
|
|
/* $OpenLDAP$ */
|
|
/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
|
|
*
|
|
* Copyright 2005-2009 The OpenLDAP Foundation.
|
|
* Portions Copyright 2005 by Howard Chu, Symas Corp.
|
|
* 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>.
|
|
*/
|
|
|
|
#include <portable.h>
|
|
|
|
#include <slap.h>
|
|
|
|
#include <lber.h>
|
|
/*
|
|
#include <lber_pvt.h>
|
|
#include <lutil.h>
|
|
*/
|
|
|
|
/* This code is based on draft-weltman-ldapv3-proxy-05. There are a lot
|
|
* of holes in that draft, it doesn't specify that the control is legal
|
|
* for Add operations, and it makes no mention of Extended operations.
|
|
* It also doesn't specify whether an empty LDAPDN is allowed in the
|
|
* control value.
|
|
*
|
|
* For usability purposes, we're copying the op / exop behavior from the
|
|
* newer -12 draft.
|
|
*/
|
|
#define LDAP_CONTROL_PROXY_AUTHZ05 "2.16.840.1.113730.3.4.12"
|
|
|
|
static char *proxyOld_extops[] = {
|
|
LDAP_EXOP_MODIFY_PASSWD,
|
|
LDAP_EXOP_X_WHO_AM_I,
|
|
NULL
|
|
};
|
|
|
|
static int
|
|
proxyOld_parse(
|
|
Operation *op,
|
|
SlapReply *rs,
|
|
LDAPControl *ctrl )
|
|
{
|
|
int rc;
|
|
BerElement *ber;
|
|
ber_tag_t tag;
|
|
struct berval dn = BER_BVNULL;
|
|
struct berval authzDN = BER_BVNULL;
|
|
|
|
|
|
/* We hijack the flag for the new control. Clearly only one or the
|
|
* other can be used at any given time.
|
|
*/
|
|
if ( op->o_proxy_authz != SLAP_CONTROL_NONE ) {
|
|
rs->sr_text = "proxy authorization control specified multiple times";
|
|
return LDAP_PROTOCOL_ERROR;
|
|
}
|
|
|
|
op->o_proxy_authz = ctrl->ldctl_iscritical
|
|
? SLAP_CONTROL_CRITICAL
|
|
: SLAP_CONTROL_NONCRITICAL;
|
|
|
|
/* Parse the control value
|
|
* proxyAuthzControlValue ::= SEQUENCE {
|
|
* proxyDN LDAPDN
|
|
* }
|
|
*/
|
|
ber = ber_init( &ctrl->ldctl_value );
|
|
if ( ber == NULL ) {
|
|
rs->sr_text = "ber_init failed";
|
|
return LDAP_OTHER;
|
|
}
|
|
|
|
tag = ber_scanf( ber, "{m}", &dn );
|
|
|
|
if ( tag == LBER_ERROR ) {
|
|
rs->sr_text = "proxyOld control could not be decoded";
|
|
rc = LDAP_OTHER;
|
|
goto done;
|
|
}
|
|
if ( BER_BVISEMPTY( &dn )) {
|
|
Debug( LDAP_DEBUG_TRACE,
|
|
"proxyOld_parse: conn=%lu anonymous\n",
|
|
op->o_connid, 0, 0 );
|
|
authzDN.bv_val = ch_strdup("");
|
|
} else {
|
|
Debug( LDAP_DEBUG_ARGS,
|
|
"proxyOld_parse: conn %lu ctrl DN=\"%s\"\n",
|
|
op->o_connid, dn.bv_val, 0 );
|
|
rc = dnNormalize( 0, NULL, NULL, &dn, &authzDN, op->o_tmpmemctx );
|
|
if ( rc != LDAP_SUCCESS ) {
|
|
goto done;
|
|
}
|
|
rc = slap_sasl_authorized( op, &op->o_ndn, &authzDN );
|
|
if ( rc ) {
|
|
op->o_tmpfree( authzDN.bv_val, op->o_tmpmemctx );
|
|
rs->sr_text = "not authorized to assume identity";
|
|
/* new spec uses LDAP_PROXY_AUTHZ_FAILURE */
|
|
rc = LDAP_INSUFFICIENT_ACCESS;
|
|
goto done;
|
|
}
|
|
}
|
|
free( op->o_ndn.bv_val );
|
|
free( op->o_dn.bv_val );
|
|
op->o_ndn = authzDN;
|
|
ber_dupbv( &op->o_dn, &authzDN );
|
|
|
|
Statslog( LDAP_DEBUG_STATS, "conn=%lu op=%lu PROXYOLD dn=\"%s\"\n",
|
|
op->o_connid, op->o_opid,
|
|
authzDN.bv_len ? authzDN.bv_val : "anonymous", 0, 0 );
|
|
rc = LDAP_SUCCESS;
|
|
done:
|
|
ber_free( ber, 1 );
|
|
return rc;
|
|
}
|
|
|
|
int init_module(int argc, char *argv[]) {
|
|
return register_supported_control( LDAP_CONTROL_PROXY_AUTHZ05,
|
|
SLAP_CTRL_GLOBAL|SLAP_CTRL_HIDE|SLAP_CTRL_ACCESS, proxyOld_extops,
|
|
proxyOld_parse, NULL );
|
|
}
|