Merge commit '86cc97e55fe346502462284d2e636a2b3708163e' as 'Sources/OpenVPN3'

Sources/OpenVPN3/openvpn/init/engineinit.hpp

@@ -0,0 +1,55 @@
+//    OpenVPN -- An application to securely tunnel IP networks
+//               over a single port, with support for SSL/TLS-based
+//               session authentication and key exchange,
+//               packet encryption, packet authentication, and
+//               packet compression.
+//
+//    Copyright (C) 2012-2017 OpenVPN Inc.
+//
+//    This program is free software: you can redistribute it and/or modify
+//    it under the terms of the GNU Affero General Public License Version 3
+//    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 Affero General Public License for more details.
+//
+//    You should have received a copy of the GNU Affero General Public License
+//    along with this program in the COPYING file.
+//    If not, see <http://www.gnu.org/licenses/>.
+
+// process-wide initialization for underlying cryptographic engines
+
+#ifndef OPENVPN_INIT_ENGINEINIT_H
+#define OPENVPN_INIT_ENGINEINIT_H
+
+#include <string>
+
+#include <openvpn/common/arch.hpp>
+
+#if defined(USE_OPENSSL)
+#include <openvpn/openssl/util/engine.hpp>
+#include <openvpn/openssl/ssl/sslctx.hpp>
+#endif
+
+#if defined(USE_MINICRYPTO) && (defined(OPENVPN_ARCH_x86_64) || defined(OPENVPN_ARCH_i386))
+extern "C" {
+  void OPENSSL_cpuid_setup();
+}
+#endif
+
+namespace openvpn {
+
+  inline void init_openssl(const std::string& engine)
+  {
+#if defined(USE_OPENSSL)
+    openssl_setup_engine(engine);
+    OpenSSLContext::SSL::init_static();
+#elif defined(USE_MINICRYPTO) && (defined(OPENVPN_ARCH_x86_64) || defined(OPENVPN_ARCH_i386))
+    OPENSSL_cpuid_setup();
+#endif
+  }
+
+}
+#endif