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/*
* Copyright (C) 2003 Nikos Mavroyanopoulos
* Copyright (C) 2004 Free Software Foundation
*
* This file is part of GNUTLS.
*
* The GNUTLS library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
/* This file contains functions to handle CRL generation.
*/
#include <gnutls_int.h>
#ifdef ENABLE_PKI
#include <gnutls_datum.h>
#include <gnutls_global.h>
#include <gnutls_errors.h>
#include <common.h>
#include <gnutls_x509.h>
#include <x509_b64.h>
#include <crq.h>
#include <dn.h>
#include <mpi.h>
#include <sign.h>
#include <extensions.h>
#include <libtasn1.h>
#include <gnutls_ui.h>
static void disable_optional_stuff( gnutls_x509_crl crl);
/**
* gnutls_x509_crl_set_version - This function will set the CRL version
* @crl: should contain a gnutls_x509_crl structure
* @version: holds the version number. For CRLv1 crls must be 1.
*
* This function will set the version of the CRL. This
* must be one for CRL version 1, and so on. The CRLs generated
* by gnutls should have a version number of 2.
*
* Returns 0 on success.
*
**/
int gnutls_x509_crl_set_version(gnutls_x509_crl crl, unsigned int version)
{
int result;
char null = version;
if (crl==NULL) {
gnutls_assert();
return GNUTLS_E_INVALID_REQUEST;
}
null -= 1;
if (null < 0) null = 0;
result = asn1_write_value( crl->crl, "tbsCertList.version", &null, 1);
if (result != ASN1_SUCCESS) {
gnutls_assert();
return _gnutls_asn2err(result);
}
return 0;
}
/**
* gnutls_x509_crl_sign - This function will sign a CRL with a key
* @crl: should contain a gnutls_x509_crl structure
* @issuer: is the certificate of the certificate issuer
* @issuer_key: holds the issuer's private key
*
* This function will sign the CRL with the issuer's private key, and
* will copy the issuer's information into the CRL.
*
* This must be the last step in a certificate CRL since all
* the previously set parameters are now signed.
*
* Returns 0 on success.
*
**/
int gnutls_x509_crl_sign(gnutls_x509_crl crl, gnutls_x509_crt issuer,
gnutls_x509_privkey issuer_key)
{
int result;
if (crl==NULL || issuer == NULL) {
gnutls_assert();
return GNUTLS_E_INVALID_REQUEST;
}
/* disable all the unneeded OPTIONAL fields.
*/
disable_optional_stuff( crl);
result = _gnutls_x509_pkix_sign( crl->crl, "tbsCertList", issuer,
issuer_key);
if (result < 0) {
gnutls_assert();
return result;
}
return 0;
}
/**
* gnutls_x509_crl_set_this_update - This function will set the CRL's issuing time
* @crl: should contain a gnutls_x509_crl structure
* @act_time: The actual time
*
* This function will set the time this CRL was issued.
*
* Returns 0 on success, or a negative value in case of an error.
*
**/
int gnutls_x509_crl_set_this_update(gnutls_x509_crl crl, time_t act_time)
{
if (crl==NULL) {
gnutls_assert();
return GNUTLS_E_INVALID_REQUEST;
}
return _gnutls_x509_set_time( crl->crl, "tbsCertList.thisUpdate", act_time);
}
/**
* gnutls_x509_crl_set_next_update - This function will set the CRL next update time
* @crl: should contain a gnutls_x509_crl structure
* @exp_time: The actual time
*
* This function will set the time this CRL will be updated.
*
* Returns 0 on success, or a negative value in case of an error.
*
**/
int gnutls_x509_crl_set_next_update(gnutls_x509_crl crl, time_t exp_time)
{
if (crl==NULL) {
gnutls_assert();
return GNUTLS_E_INVALID_REQUEST;
}
return _gnutls_x509_set_time( crl->crl, "tbsCertList.nextUpdate", exp_time);
}
/**
* gnutls_x509_crl_set_crt_serial - This function will set a revoked certificate's serial number
* @crl: should contain a gnutls_x509_crl structure
* @serial: The revoked certificate's serial number
* @serial_size: Holds the size of the serial field.
* @revocation_time: The time this certificate was revoked
*
* This function will set a revoked certificate's serial number to the CRL.
*
* Returns 0 on success, or a negative value in case of an error.
*
**/
int gnutls_x509_crl_set_crt_serial(gnutls_x509_crl crl, const void* serial,
size_t serial_size, time_t revocation_time)
{
int ret;
if (crl==NULL) {
gnutls_assert();
return GNUTLS_E_INVALID_REQUEST;
}
ret = asn1_write_value(crl->crl, "tbsCertList.revokedCertificates", "NEW", 1);
if (ret != ASN1_SUCCESS) {
gnutls_assert();
return _gnutls_asn2err(ret);
}
ret = asn1_write_value(crl->crl, "tbsCertList.revokedCertificates.?LAST.userCertificate", serial, serial_size);
if (ret != ASN1_SUCCESS) {
gnutls_assert();
return _gnutls_asn2err(ret);
}
ret = _gnutls_x509_set_time( crl->crl, "tbsCertList.revokedCertificates.?LAST.revocationDate",
revocation_time);
if (ret < 0) {
gnutls_assert();
return ret;
}
ret = asn1_write_value(crl->crl, "tbsCertList.revokedCertificates.?LAST.crlEntryExtensions", NULL, 0);
if (ret != ASN1_SUCCESS) {
gnutls_assert();
return _gnutls_asn2err(ret);
}
return 0;
}
/**
* gnutls_x509_crl_set_crt - This function will set a revoked certificate's serial number
* @crl: should contain a gnutls_x509_crl structure
* @crt: should contain a gnutls_x509_crt structure with the revoked certificate
* @revocation_time: The time this certificate was revoked
*
* This function will set a revoked certificate's serial number to the CRL.
*
* Returns 0 on success, or a negative value in case of an error.
*
**/
int gnutls_x509_crl_set_crt(gnutls_x509_crl crl, gnutls_x509_crt crt,
time_t revocation_time)
{
int ret;
opaque serial[128];
size_t serial_size;
if (crl==NULL || crt == NULL) {
gnutls_assert();
return GNUTLS_E_INVALID_REQUEST;
}
serial_size = sizeof(serial);
ret = gnutls_x509_crt_get_serial(crt, serial, &serial_size);
if (ret < 0) {
gnutls_assert();
return ret;
}
ret = gnutls_x509_crl_set_crt_serial( crl, serial, serial_size, revocation_time);
if (ret < 0) {
gnutls_assert();
return _gnutls_asn2err(ret);
}
return 0;
}
/* If OPTIONAL fields have not been initialized then
* disable them.
*/
static void disable_optional_stuff( gnutls_x509_crl crl)
{
asn1_write_value( crl->crl, "tbsCertList.crlExtensions", NULL, 0);
return;
}
#endif /* ENABLE_PKI */
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