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|
/* crypto/ts/ts_conf.c */
/* Written by Zoltan Glozik (zglozik@stones.com) for the OpenSSL
* project 2002.
*/
/* ====================================================================
* Copyright (c) 2006 The OpenSSL Project. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. All advertising materials mentioning features or use of this
* software must display the following acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
*
* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
* endorse or promote products derived from this software without
* prior written permission. For written permission, please contact
* licensing@OpenSSL.org.
*
* 5. Products derived from this software may not be called "OpenSSL"
* nor may "OpenSSL" appear in their names without prior written
* permission of the OpenSSL Project.
*
* 6. Redistributions of any form whatsoever must retain the following
* acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
*
* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
* ====================================================================
*
* This product includes cryptographic software written by Eric Young
* (eay@cryptsoft.com). This product includes software written by Tim
* Hudson (tjh@cryptsoft.com).
*
*/
#include <string.h>
#include <openssl/pem.h>
#include <openssl/engine.h>
#include <openssl/ts.h>
/* Macro definitions for the configuration file. */
#define BASE_SECTION "tsa"
#define ENV_DEFAULT_TSA "default_tsa"
#define ENV_SERIAL "serial"
#define ENV_CRYPTO_DEVICE "crypto_device"
#define ENV_SIGNER_CERT "signer_cert"
#define ENV_CERTS "certs"
#define ENV_SIGNER_KEY "signer_key"
#define ENV_DEFAULT_POLICY "default_policy"
#define ENV_OTHER_POLICIES "other_policies"
#define ENV_DIGESTS "digests"
#define ENV_ACCURACY "accuracy"
#define ENV_ORDERING "ordering"
#define ENV_TSA_NAME "tsa_name"
#define ENV_ESS_CERT_ID_CHAIN "ess_cert_id_chain"
#define ENV_VALUE_SECS "secs"
#define ENV_VALUE_MILLISECS "millisecs"
#define ENV_VALUE_MICROSECS "microsecs"
#define ENV_CLOCK_PRECISION_DIGITS "clock_precision_digits"
#define ENV_VALUE_YES "yes"
#define ENV_VALUE_NO "no"
/* Function definitions for certificate and key loading. */
X509 *TS_CONF_load_cert(const char *file)
{
BIO *cert = NULL;
X509 *x = NULL;
if ((cert = BIO_new_file(file, "r")) == NULL) goto end;
x = PEM_read_bio_X509_AUX(cert, NULL, NULL, NULL);
end:
if (x == NULL)
fprintf(stderr, "unable to load certificate: %s\n", file);
BIO_free(cert);
return x;
}
STACK_OF(X509) *TS_CONF_load_certs(const char *file)
{
BIO *certs = NULL;
STACK_OF(X509) *othercerts = NULL;
STACK_OF(X509_INFO) *allcerts = NULL;
int i;
if (!(certs = BIO_new_file(file, "r"))) goto end;
if (!(othercerts = sk_X509_new_null())) goto end;
allcerts = PEM_X509_INFO_read_bio(certs, NULL, NULL, NULL);
for(i = 0; i < sk_X509_INFO_num(allcerts); i++)
{
X509_INFO *xi = sk_X509_INFO_value(allcerts, i);
if (xi->x509)
{
sk_X509_push(othercerts, xi->x509);
xi->x509 = NULL;
}
}
end:
if (othercerts == NULL)
fprintf(stderr, "unable to load certificates: %s\n", file);
sk_X509_INFO_pop_free(allcerts, X509_INFO_free);
BIO_free(certs);
return othercerts;
}
EVP_PKEY *TS_CONF_load_key(const char *file, const char *pass)
{
BIO *key = NULL;
EVP_PKEY *pkey = NULL;
if (!(key = BIO_new_file(file, "r"))) goto end;
pkey = PEM_read_bio_PrivateKey(key, NULL, NULL, (char *) pass);
end:
if (pkey == NULL)
fprintf(stderr, "unable to load private key: %s\n", file);
BIO_free(key);
return pkey;
}
/* Function definitions for handling configuration options. */
static void TS_CONF_lookup_fail(const char *name, const char *tag)
{
fprintf(stderr, "variable lookup failed for %s::%s\n", name, tag);
}
static void TS_CONF_invalid(const char *name, const char *tag)
{
fprintf(stderr, "invalid variable value for %s::%s\n", name, tag);
}
const char *TS_CONF_get_tsa_section(CONF *conf, const char *section)
{
if (!section)
{
section = NCONF_get_string(conf, BASE_SECTION, ENV_DEFAULT_TSA);
if (!section)
TS_CONF_lookup_fail(BASE_SECTION, ENV_DEFAULT_TSA);
}
return section;
}
int TS_CONF_set_serial(CONF *conf, const char *section, TS_serial_cb cb,
TS_RESP_CTX *ctx)
{
int ret = 0;
char *serial = NCONF_get_string(conf, section, ENV_SERIAL);
if (!serial)
{
TS_CONF_lookup_fail(section, ENV_SERIAL);
goto err;
}
TS_RESP_CTX_set_serial_cb(ctx, cb, serial);
ret = 1;
err:
return ret;
}
int TS_CONF_set_crypto_device(CONF *conf, const char *section,
const char *device)
{
int ret = 0;
if (!device)
device = NCONF_get_string(conf, section,
ENV_CRYPTO_DEVICE);
if (device && !TS_CONF_set_default_engine(device))
{
TS_CONF_invalid(section, ENV_CRYPTO_DEVICE);
goto err;
}
ret = 1;
err:
return ret;
}
int TS_CONF_set_default_engine(const char *name)
{
ENGINE *e = NULL;
int ret = 0;
/* Leave the default if builtin specified. */
if (strcmp(name, "builtin") == 0) return 1;
if (!(e = ENGINE_by_id(name))) goto err;
/* Enable the use of the NCipher HSM for forked children. */
if (strcmp(name, "chil") == 0)
ENGINE_ctrl(e, ENGINE_CTRL_CHIL_SET_FORKCHECK, 1, 0, 0);
/* All the operations are going to be carried out by the engine. */
if (!ENGINE_set_default(e, ENGINE_METHOD_ALL)) goto err;
ret = 1;
err:
if (!ret)
{
TSerr(TS_F_TS_CONF_SET_DEFAULT_ENGINE,
TS_R_COULD_NOT_SET_ENGINE);
ERR_add_error_data(2, "engine:", name);
}
if (e) ENGINE_free(e);
return ret;
}
int TS_CONF_set_signer_cert(CONF *conf, const char *section,
const char *cert, TS_RESP_CTX *ctx)
{
int ret = 0;
X509 *cert_obj = NULL;
if (!cert)
cert = NCONF_get_string(conf, section, ENV_SIGNER_CERT);
if (!cert)
{
TS_CONF_lookup_fail(section, ENV_SIGNER_CERT);
goto err;
}
if (!(cert_obj = TS_CONF_load_cert(cert)))
goto err;
if (!TS_RESP_CTX_set_signer_cert(ctx, cert_obj))
goto err;
ret = 1;
err:
X509_free(cert_obj);
return ret;
}
int TS_CONF_set_certs(CONF *conf, const char *section, const char *certs,
TS_RESP_
|