mirror of
https://github.com/Cisco-Talos/clamav.git
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103 lines
2.9 KiB
C
103 lines
2.9 KiB
C
/*
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* OpenSSL certificate verification for Linux.
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*
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* Copyright (C) 2016-2024 Cisco Systems, Inc. and/or its affiliates. All rights reserved.
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*
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* Authors: Russ Kubik
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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* MA 02110-1301, USA.
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*/
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#include <openssl/bio.h>
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#include <openssl/err.h>
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#include <openssl/pem.h>
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#include <stdint.h>
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#include <stdlib.h>
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#include <inttypes.h>
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#include <curl/curl.h>
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#include "output.h"
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#include "cert_util.h"
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#include "cert_util_internal.h"
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void set_tls_ca_bundle(CURL *curl)
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{
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char *ca_bundle;
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ca_bundle = getenv("CURL_CA_BUNDLE");
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if (ca_bundle == NULL) {
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return;
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}
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if (curl_easy_setopt(curl, CURLOPT_CAINFO, ca_bundle) != CURLE_OK) {
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fprintf(stderr, "Failed to set CURLOPT_CAINFO!\n");
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}
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}
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cl_error_t cert_store_load(X509 **trusted_certs, size_t trusted_cert_count)
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{
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cl_error_t ret = CL_EOPEN;
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cert_store_t *store = NULL;
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int pt_err;
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do {
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store = cert_store_get_int();
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if (!store) {
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mprintf(LOGG_ERROR, "Failed to retrieve cert store\n");
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break;
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}
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pt_err = pthread_mutex_lock(&store->mutex);
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if (pt_err) {
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errno = pt_err;
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mprintf(LOGG_ERROR, "Mutex lock failed\n");
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}
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if (store->loaded) {
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ret = 0;
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break;
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}
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/* System certs do not need to be added as they can be accessed directly
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* by the SSL library. */
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store->system_certs.count = 0;
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store->system_certs.certificates = NULL;
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if (trusted_certs && trusted_cert_count > 0) {
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if (cert_store_set_trusted_int(trusted_certs, trusted_cert_count) == 0) {
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mprintf(LOGG_DEBUG, "Trusted certificates loaded: %zu\n",
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store->trusted_certs.count);
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} else {
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mprintf(LOGG_WARNING, "Continuing without trusted certificates\n");
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/* proceed as if we succeeded using only certificates from the
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* system */
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}
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}
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store->loaded = true;
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ret = 0;
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} while (0);
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if (store) {
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pt_err = pthread_mutex_unlock(&store->mutex);
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if (pt_err) {
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errno = pt_err;
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mprintf(LOGG_ERROR, "Mutex unlock failed\n");
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}
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}
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return ret;
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}
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