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authorAlberto Gonzalez Iniesta <agi@inittab.org>2016-11-21 09:37:33 +0100
committerAlberto Gonzalez Iniesta <agi@inittab.org>2016-11-21 09:37:33 +0100
commit20c8675ba46bda97330a4117c459a59a9f1c465e (patch)
treed888c714fb61947dd79dc44b64a4aaae2f70bfb7 /src/openvpn/pkcs11_mbedtls.c
parentffca24bed7a03d95585ad02278667abe75d8b272 (diff)
New upstream version 2.4~beta1upstream/2.4_beta1
Diffstat (limited to 'src/openvpn/pkcs11_mbedtls.c')
-rw-r--r--src/openvpn/pkcs11_mbedtls.c129
1 files changed, 129 insertions, 0 deletions
diff --git a/src/openvpn/pkcs11_mbedtls.c b/src/openvpn/pkcs11_mbedtls.c
new file mode 100644
index 0000000..e208b61
--- /dev/null
+++ b/src/openvpn/pkcs11_mbedtls.c
@@ -0,0 +1,129 @@
+/*
+ * OpenVPN -- An application to securely tunnel IP networks
+ * over a single TCP/UDP port, with support for SSL/TLS-based
+ * session authentication and key exchange,
+ * packet encryption, packet authentication, and
+ * packet compression.
+ *
+ * Copyright (C) 2002-2010 OpenVPN Technologies, Inc. <sales@openvpn.net>
+ * Copyright (C) 2010 Fox Crypto B.V. <openvpn@fox-it.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program (see the file COPYING included with this
+ * distribution); if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+/**
+ * @file PKCS #11 mbed TLS backend
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#elif defined(_MSC_VER)
+#include "config-msvc.h"
+#endif
+
+#include "syshead.h"
+
+#if defined(ENABLE_PKCS11) && defined(ENABLE_CRYPTO_MBEDTLS)
+
+#include "errlevel.h"
+#include "pkcs11_backend.h"
+#include <mbedtls/pkcs11.h>
+#include <mbedtls/x509.h>
+
+int
+pkcs11_init_tls_session(pkcs11h_certificate_t certificate,
+ struct tls_root_ctx * const ssl_ctx)
+{
+ int ret = 1;
+
+ ASSERT (NULL != ssl_ctx);
+
+ ALLOC_OBJ_CLEAR (ssl_ctx->crt_chain, mbedtls_x509_crt);
+ if (mbedtls_pkcs11_x509_cert_bind(ssl_ctx->crt_chain, certificate)) {
+ msg (M_FATAL, "PKCS#11: Cannot retrieve mbed TLS certificate object");
+ goto cleanup;
+ }
+
+ ALLOC_OBJ_CLEAR (ssl_ctx->priv_key_pkcs11, mbedtls_pkcs11_context);
+ if (mbedtls_pkcs11_priv_key_bind(ssl_ctx->priv_key_pkcs11, certificate)) {
+ msg (M_FATAL, "PKCS#11: Cannot initialize mbed TLS private key object");
+ goto cleanup;
+ }
+
+ ALLOC_OBJ_CLEAR (ssl_ctx->priv_key, mbedtls_pk_context);
+ if (!mbed_ok(mbedtls_pk_setup_rsa_alt(ssl_ctx->priv_key,
+ ssl_ctx->priv_key_pkcs11, mbedtls_ssl_pkcs11_decrypt,
+ mbedtls_ssl_pkcs11_sign, mbedtls_ssl_pkcs11_key_len))) {
+ goto cleanup;
+ }
+
+ ret = 0;
+
+cleanup:
+ return ret;
+}
+
+char *
+pkcs11_certificate_dn (pkcs11h_certificate_t cert, struct gc_arena *gc)
+{
+ char *ret = NULL;
+ char dn[1024] = {0};
+
+ mbedtls_x509_crt mbed_crt = {0};
+
+ if (mbedtls_pkcs11_x509_cert_bind(&mbed_crt, cert)) {
+ msg (M_FATAL, "PKCS#11: Cannot retrieve mbed TLS certificate object");
+ goto cleanup;
+ }
+
+ if (-1 == mbedtls_x509_dn_gets (dn, sizeof(dn), &mbed_crt.subject)) {
+ msg (M_FATAL, "PKCS#11: mbed TLS cannot parse subject");
+ goto cleanup;
+ }
+
+ ret = string_alloc(dn, gc);
+
+cleanup:
+ mbedtls_x509_crt_free(&mbed_crt);
+
+ return ret;
+}
+
+int
+pkcs11_certificate_serial (pkcs11h_certificate_t cert, char *serial,
+ size_t serial_len)
+{
+ int ret = 1;
+
+ mbedtls_x509_crt mbed_crt = {0};
+
+ if (mbedtls_pkcs11_x509_cert_bind(&mbed_crt, cert)) {
+ msg (M_FATAL, "PKCS#11: Cannot retrieve mbed TLS certificate object");
+ goto cleanup;
+ }
+
+ if (-1 == mbedtls_x509_serial_gets (serial, serial_len, &mbed_crt.serial)) {
+ msg (M_FATAL, "PKCS#11: mbed TLS cannot parse serial");
+ goto cleanup;
+ }
+
+ ret = 0;
+
+cleanup:
+ mbedtls_x509_crt_free(&mbed_crt);
+
+ return ret;
+}
+#endif /* defined(ENABLE_PKCS11) && defined(ENABLE_CRYPTO_MBEDTLS) */