531 lines
13 KiB
C
531 lines
13 KiB
C
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/* $OpenBSD: ts_conf.c,v 1.11 2018/04/14 07:18:37 tb Exp $ */
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/* Written by Zoltan Glozik (zglozik@stones.com) for the OpenSSL
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* project 2002.
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*/
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/* ====================================================================
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* Copyright (c) 2006 The OpenSSL Project. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* 3. All advertising materials mentioning features or use of this
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* software must display the following acknowledgment:
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* "This product includes software developed by the OpenSSL Project
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* for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
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*
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* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
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* endorse or promote products derived from this software without
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* prior written permission. For written permission, please contact
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* licensing@OpenSSL.org.
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*
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* 5. Products derived from this software may not be called "OpenSSL"
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* nor may "OpenSSL" appear in their names without prior written
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* permission of the OpenSSL Project.
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*
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* 6. Redistributions of any form whatsoever must retain the following
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* acknowledgment:
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* "This product includes software developed by the OpenSSL Project
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* for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
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*
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* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
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* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
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* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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* ====================================================================
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*
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* This product includes cryptographic software written by Eric Young
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* (eay@cryptsoft.com). This product includes software written by Tim
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* Hudson (tjh@cryptsoft.com).
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*
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*/
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#include <string.h>
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#include <openssl/opensslconf.h>
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#include <openssl/crypto.h>
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#include <openssl/err.h>
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#include <openssl/pem.h>
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#include <openssl/ts.h>
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#ifndef OPENSSL_NO_ENGINE
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#include <openssl/engine.h>
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#endif
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/* Macro definitions for the configuration file. */
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#define BASE_SECTION "tsa"
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#define ENV_DEFAULT_TSA "default_tsa"
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#define ENV_SERIAL "serial"
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#define ENV_CRYPTO_DEVICE "crypto_device"
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#define ENV_SIGNER_CERT "signer_cert"
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#define ENV_CERTS "certs"
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#define ENV_SIGNER_KEY "signer_key"
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#define ENV_DEFAULT_POLICY "default_policy"
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#define ENV_OTHER_POLICIES "other_policies"
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#define ENV_DIGESTS "digests"
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#define ENV_ACCURACY "accuracy"
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#define ENV_ORDERING "ordering"
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#define ENV_TSA_NAME "tsa_name"
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#define ENV_ESS_CERT_ID_CHAIN "ess_cert_id_chain"
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#define ENV_VALUE_SECS "secs"
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#define ENV_VALUE_MILLISECS "millisecs"
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#define ENV_VALUE_MICROSECS "microsecs"
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#define ENV_CLOCK_PRECISION_DIGITS "clock_precision_digits"
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#define ENV_VALUE_YES "yes"
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#define ENV_VALUE_NO "no"
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/* Function definitions for certificate and key loading. */
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X509 *
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TS_CONF_load_cert(const char *file)
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{
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BIO *cert = NULL;
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X509 *x = NULL;
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if ((cert = BIO_new_file(file, "r")) == NULL)
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goto end;
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x = PEM_read_bio_X509_AUX(cert, NULL, NULL, NULL);
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end:
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if (x == NULL)
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fprintf(stderr, "unable to load certificate: %s\n", file);
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BIO_free(cert);
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return x;
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}
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STACK_OF(X509) *
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TS_CONF_load_certs(const char *file)
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{
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BIO *certs = NULL;
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STACK_OF(X509) *othercerts = NULL;
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STACK_OF(X509_INFO) *allcerts = NULL;
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int i;
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if (!(certs = BIO_new_file(file, "r")))
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goto end;
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if (!(othercerts = sk_X509_new_null()))
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goto end;
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allcerts = PEM_X509_INFO_read_bio(certs, NULL, NULL, NULL);
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for (i = 0; i < sk_X509_INFO_num(allcerts); i++) {
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X509_INFO *xi = sk_X509_INFO_value(allcerts, i);
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if (xi->x509) {
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if (sk_X509_push(othercerts, xi->x509) == 0) {
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sk_X509_pop_free(othercerts, X509_free);
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othercerts = NULL;
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goto end;
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}
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xi->x509 = NULL;
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}
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}
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end:
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if (othercerts == NULL)
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fprintf(stderr, "unable to load certificates: %s\n", file);
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sk_X509_INFO_pop_free(allcerts, X509_INFO_free);
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BIO_free(certs);
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return othercerts;
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}
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EVP_PKEY *
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TS_CONF_load_key(const char *file, const char *pass)
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{
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BIO *key = NULL;
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EVP_PKEY *pkey = NULL;
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if (!(key = BIO_new_file(file, "r")))
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goto end;
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pkey = PEM_read_bio_PrivateKey(key, NULL, NULL, (char *) pass);
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end:
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if (pkey == NULL)
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fprintf(stderr, "unable to load private key: %s\n", file);
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BIO_free(key);
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return pkey;
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}
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/* Function definitions for handling configuration options. */
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static void
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TS_CONF_lookup_fail(const char *name, const char *tag)
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{
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fprintf(stderr, "variable lookup failed for %s::%s\n", name, tag);
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}
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static void
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TS_CONF_invalid(const char *name, const char *tag)
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{
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fprintf(stderr, "invalid variable value for %s::%s\n", name, tag);
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}
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const char *
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TS_CONF_get_tsa_section(CONF *conf, const char *section)
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{
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if (!section) {
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section = NCONF_get_string(conf, BASE_SECTION, ENV_DEFAULT_TSA);
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if (!section)
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TS_CONF_lookup_fail(BASE_SECTION, ENV_DEFAULT_TSA);
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}
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return section;
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}
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int
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TS_CONF_set_serial(CONF *conf, const char *section, TS_serial_cb cb,
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TS_RESP_CTX *ctx)
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{
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int ret = 0;
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char *serial = NCONF_get_string(conf, section, ENV_SERIAL);
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if (!serial) {
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TS_CONF_lookup_fail(section, ENV_SERIAL);
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goto err;
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}
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TS_RESP_CTX_set_serial_cb(ctx, cb, serial);
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ret = 1;
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err:
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return ret;
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}
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#ifndef OPENSSL_NO_ENGINE
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int
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TS_CONF_set_crypto_device(CONF *conf, const char *section, const char *device)
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{
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int ret = 0;
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if (!device)
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device = NCONF_get_string(conf, section, ENV_CRYPTO_DEVICE);
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if (device && !TS_CONF_set_default_engine(device)) {
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TS_CONF_invalid(section, ENV_CRYPTO_DEVICE);
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goto err;
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}
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ret = 1;
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err:
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return ret;
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}
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int
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TS_CONF_set_default_engine(const char *name)
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{
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ENGINE *e = NULL;
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int ret = 0;
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||
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/* Leave the default if builtin specified. */
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if (strcmp(name, "builtin") == 0)
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return 1;
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if (!(e = ENGINE_by_id(name)))
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goto err;
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/* All the operations are going to be carried out by the engine. */
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if (!ENGINE_set_default(e, ENGINE_METHOD_ALL))
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goto err;
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ret = 1;
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err:
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||
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|
if (!ret) {
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TSerror(TS_R_COULD_NOT_SET_ENGINE);
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ERR_asprintf_error_data("engine:%s", name);
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}
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ENGINE_free(e);
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||
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return ret;
|
||
|
|
}
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||
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||
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#endif
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|
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|
||
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int
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TS_CONF_set_signer_cert(CONF *conf, const char *section, const char *cert,
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||
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TS_RESP_CTX *ctx)
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||
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{
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||
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int ret = 0;
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||
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X509 *cert_obj = NULL;
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|
|
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||
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if (!cert)
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||
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cert = NCONF_get_string(conf, section, ENV_SIGNER_CERT);
|
||
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|
if (!cert) {
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||
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TS_CONF_lookup_fail(section, ENV_SIGNER_CERT);
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||
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goto err;
|
||
|
|
}
|
||
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if (!(cert_obj = TS_CONF_load_cert(cert)))
|
||
|
|
goto err;
|
||
|
|
if (!TS_RESP_CTX_set_signer_cert(ctx, cert_obj))
|
||
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|
goto err;
|
||
|
|
|
||
|
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ret = 1;
|
||
|
|
|
||
|
|
err:
|
||
|
|
X509_free(cert_obj);
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
|
||
|
|
int
|
||
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|
TS_CONF_set_certs(CONF *conf, const char *section, const char *certs,
|
||
|
|
TS_RESP_CTX *ctx)
|
||
|
|
{
|
||
|
|
int ret = 0;
|
||
|
|
STACK_OF(X509) *certs_obj = NULL;
|
||
|
|
|
||
|
|
if (!certs)
|
||
|
|
certs = NCONF_get_string(conf, section, ENV_CERTS);
|
||
|
|
/* Certificate chain is optional. */
|
||
|
|
if (!certs)
|
||
|
|
goto end;
|
||
|
|
if (!(certs_obj = TS_CONF_load_certs(certs)))
|
||
|
|
goto err;
|
||
|
|
if (!TS_RESP_CTX_set_certs(ctx, certs_obj))
|
||
|
|
goto err;
|
||
|
|
|
||
|
|
end:
|
||
|
|
ret = 1;
|
||
|
|
err:
|
||
|
|
sk_X509_pop_free(certs_obj, X509_free);
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
|
||
|
|
int
|
||
|
|
TS_CONF_set_signer_key(CONF *conf, const char *section, const char *key,
|
||
|
|
const char *pass, TS_RESP_CTX *ctx)
|
||
|
|
{
|
||
|
|
int ret = 0;
|
||
|
|
EVP_PKEY *key_obj = NULL;
|
||
|
|
|
||
|
|
if (!key)
|
||
|
|
key = NCONF_get_string(conf, section, ENV_SIGNER_KEY);
|
||
|
|
if (!key) {
|
||
|
|
TS_CONF_lookup_fail(section, ENV_SIGNER_KEY);
|
||
|
|
goto err;
|
||
|
|
}
|
||
|
|
if (!(key_obj = TS_CONF_load_key(key, pass)))
|
||
|
|
goto err;
|
||
|
|
if (!TS_RESP_CTX_set_signer_key(ctx, key_obj))
|
||
|
|
goto err;
|
||
|
|
|
||
|
|
ret = 1;
|
||
|
|
|
||
|
|
err:
|
||
|
|
EVP_PKEY_free(key_obj);
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
|
||
|
|
int
|
||
|
|
TS_CONF_set_def_policy(CONF *conf, const char *section, const char *policy,
|
||
|
|
TS_RESP_CTX *ctx)
|
||
|
|
{
|
||
|
|
int ret = 0;
|
||
|
|
ASN1_OBJECT *policy_obj = NULL;
|
||
|
|
|
||
|
|
if (!policy)
|
||
|
|
policy = NCONF_get_string(conf, section, ENV_DEFAULT_POLICY);
|
||
|
|
if (!policy) {
|
||
|
|
TS_CONF_lookup_fail(section, ENV_DEFAULT_POLICY);
|
||
|
|
goto err;
|
||
|
|
}
|
||
|
|
if (!(policy_obj = OBJ_txt2obj(policy, 0))) {
|
||
|
|
TS_CONF_invalid(section, ENV_DEFAULT_POLICY);
|
||
|
|
goto err;
|
||
|
|
}
|
||
|
|
if (!TS_RESP_CTX_set_def_policy(ctx, policy_obj))
|
||
|
|
goto err;
|
||
|
|
|
||
|
|
ret = 1;
|
||
|
|
|
||
|
|
err:
|
||
|
|
ASN1_OBJECT_free(policy_obj);
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
|
||
|
|
int
|
||
|
|
TS_CONF_set_policies(CONF *conf, const char *section, TS_RESP_CTX *ctx)
|
||
|
|
{
|
||
|
|
int ret = 0;
|
||
|
|
int i;
|
||
|
|
STACK_OF(CONF_VALUE) *list = NULL;
|
||
|
|
char *policies = NCONF_get_string(conf, section, ENV_OTHER_POLICIES);
|
||
|
|
|
||
|
|
/* If no other policy is specified, that's fine. */
|
||
|
|
if (policies && !(list = X509V3_parse_list(policies))) {
|
||
|
|
TS_CONF_invalid(section, ENV_OTHER_POLICIES);
|
||
|
|
goto err;
|
||
|
|
}
|
||
|
|
for (i = 0; i < sk_CONF_VALUE_num(list); ++i) {
|
||
|
|
CONF_VALUE *val = sk_CONF_VALUE_value(list, i);
|
||
|
|
const char *extval = val->value ? val->value : val->name;
|
||
|
|
ASN1_OBJECT *objtmp;
|
||
|
|
if (!(objtmp = OBJ_txt2obj(extval, 0))) {
|
||
|
|
TS_CONF_invalid(section, ENV_OTHER_POLICIES);
|
||
|
|
goto err;
|
||
|
|
}
|
||
|
|
if (!TS_RESP_CTX_add_policy(ctx, objtmp))
|
||
|
|
goto err;
|
||
|
|
ASN1_OBJECT_free(objtmp);
|
||
|
|
}
|
||
|
|
|
||
|
|
ret = 1;
|
||
|
|
|
||
|
|
err:
|
||
|
|
sk_CONF_VALUE_pop_free(list, X509V3_conf_free);
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
|
||
|
|
int
|
||
|
|
TS_CONF_set_digests(CONF *conf, const char *section, TS_RESP_CTX *ctx)
|
||
|
|
{
|
||
|
|
int ret = 0;
|
||
|
|
int i;
|
||
|
|
STACK_OF(CONF_VALUE) *list = NULL;
|
||
|
|
char *digests = NCONF_get_string(conf, section, ENV_DIGESTS);
|
||
|
|
|
||
|
|
if (!digests) {
|
||
|
|
TS_CONF_lookup_fail(section, ENV_DIGESTS);
|
||
|
|
goto err;
|
||
|
|
}
|
||
|
|
if (!(list = X509V3_parse_list(digests))) {
|
||
|
|
TS_CONF_invalid(section, ENV_DIGESTS);
|
||
|
|
goto err;
|
||
|
|
}
|
||
|
|
if (sk_CONF_VALUE_num(list) == 0) {
|
||
|
|
TS_CONF_invalid(section, ENV_DIGESTS);
|
||
|
|
goto err;
|
||
|
|
}
|
||
|
|
for (i = 0; i < sk_CONF_VALUE_num(list); ++i) {
|
||
|
|
CONF_VALUE *val = sk_CONF_VALUE_value(list, i);
|
||
|
|
const char *extval = val->value ? val->value : val->name;
|
||
|
|
const EVP_MD *md;
|
||
|
|
if (!(md = EVP_get_digestbyname(extval))) {
|
||
|
|
TS_CONF_invalid(section, ENV_DIGESTS);
|
||
|
|
goto err;
|
||
|
|
}
|
||
|
|
if (!TS_RESP_CTX_add_md(ctx, md))
|
||
|
|
goto err;
|
||
|
|
}
|
||
|
|
|
||
|
|
ret = 1;
|
||
|
|
|
||
|
|
err:
|
||
|
|
sk_CONF_VALUE_pop_free(list, X509V3_conf_free);
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
|
||
|
|
int
|
||
|
|
TS_CONF_set_accuracy(CONF *conf, const char *section, TS_RESP_CTX *ctx)
|
||
|
|
{
|
||
|
|
int ret = 0;
|
||
|
|
int i;
|
||
|
|
int secs = 0, millis = 0, micros = 0;
|
||
|
|
STACK_OF(CONF_VALUE) *list = NULL;
|
||
|
|
char *accuracy = NCONF_get_string(conf, section, ENV_ACCURACY);
|
||
|
|
|
||
|
|
if (accuracy && !(list = X509V3_parse_list(accuracy))) {
|
||
|
|
TS_CONF_invalid(section, ENV_ACCURACY);
|
||
|
|
goto err;
|
||
|
|
}
|
||
|
|
for (i = 0; i < sk_CONF_VALUE_num(list); ++i) {
|
||
|
|
CONF_VALUE *val = sk_CONF_VALUE_value(list, i);
|
||
|
|
if (strcmp(val->name, ENV_VALUE_SECS) == 0) {
|
||
|
|
if (val->value)
|
||
|
|
secs = atoi(val->value);
|
||
|
|
} else if (strcmp(val->name, ENV_VALUE_MILLISECS) == 0) {
|
||
|
|
if (val->value)
|
||
|
|
millis = atoi(val->value);
|
||
|
|
} else if (strcmp(val->name, ENV_VALUE_MICROSECS) == 0) {
|
||
|
|
if (val->value)
|
||
|
|
micros = atoi(val->value);
|
||
|
|
} else {
|
||
|
|
TS_CONF_invalid(section, ENV_ACCURACY);
|
||
|
|
goto err;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (!TS_RESP_CTX_set_accuracy(ctx, secs, millis, micros))
|
||
|
|
goto err;
|
||
|
|
|
||
|
|
ret = 1;
|
||
|
|
|
||
|
|
err:
|
||
|
|
sk_CONF_VALUE_pop_free(list, X509V3_conf_free);
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
|
||
|
|
int
|
||
|
|
TS_CONF_set_clock_precision_digits(CONF *conf, const char *section,
|
||
|
|
TS_RESP_CTX *ctx)
|
||
|
|
{
|
||
|
|
int ret = 0;
|
||
|
|
long digits = 0;
|
||
|
|
|
||
|
|
/* If not specified, set the default value to 0, i.e. sec precision */
|
||
|
|
if (!NCONF_get_number_e(conf, section, ENV_CLOCK_PRECISION_DIGITS,
|
||
|
|
&digits))
|
||
|
|
digits = 0;
|
||
|
|
if (digits < 0 || digits > TS_MAX_CLOCK_PRECISION_DIGITS) {
|
||
|
|
TS_CONF_invalid(section, ENV_CLOCK_PRECISION_DIGITS);
|
||
|
|
goto err;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!TS_RESP_CTX_set_clock_precision_digits(ctx, digits))
|
||
|
|
goto err;
|
||
|
|
|
||
|
|
return 1;
|
||
|
|
|
||
|
|
err:
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int
|
||
|
|
TS_CONF_add_flag(CONF *conf, const char *section, const char *field, int flag,
|
||
|
|
TS_RESP_CTX *ctx)
|
||
|
|
{
|
||
|
|
/* Default is false. */
|
||
|
|
const char *value = NCONF_get_string(conf, section, field);
|
||
|
|
|
||
|
|
if (value) {
|
||
|
|
if (strcmp(value, ENV_VALUE_YES) == 0)
|
||
|
|
TS_RESP_CTX_add_flags(ctx, flag);
|
||
|
|
else if (strcmp(value, ENV_VALUE_NO) != 0) {
|
||
|
|
TS_CONF_invalid(section, field);
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
int
|
||
|
|
TS_CONF_set_ordering(CONF *conf, const char *section, TS_RESP_CTX *ctx)
|
||
|
|
{
|
||
|
|
return TS_CONF_add_flag(conf, section, ENV_ORDERING, TS_ORDERING, ctx);
|
||
|
|
}
|
||
|
|
|
||
|
|
int
|
||
|
|
TS_CONF_set_tsa_name(CONF *conf, const char *section, TS_RESP_CTX *ctx)
|
||
|
|
{
|
||
|
|
return TS_CONF_add_flag(conf, section, ENV_TSA_NAME, TS_TSA_NAME, ctx);
|
||
|
|
}
|
||
|
|
|
||
|
|
int
|
||
|
|
TS_CONF_set_ess_cert_id_chain(CONF *conf, const char *section, TS_RESP_CTX *ctx)
|
||
|
|
{
|
||
|
|
return TS_CONF_add_flag(conf, section, ENV_ESS_CERT_ID_CHAIN,
|
||
|
|
TS_ESS_CERT_ID_CHAIN, ctx);
|
||
|
|
}
|