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

2026-04-24 00:00:05 +08:00 · 2020-02-24 14:43:11 +03:00
parent 133b3756e6 86cc97e55f
commit 32f1555929
655 changed files with 146468 additions and 0 deletions
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+//    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/>.
+
+#ifndef OPENVPN_TUN_PERSIST_TUNWRAPASIO_H
+#define OPENVPN_TUN_PERSIST_TUNWRAPASIO_H
+
+#include <utility>
+
+namespace openvpn {
+
+  // This object supports that subset of the Asio stream
+  // interface required by TunIO, and is intended to wrap
+  // a ScopedAsioStream embedded in a TunWrap object.
+  // It is used primarily on Windows to wrap the TAP
+  // interface HANDLE in way that plays well with Windows
+  // I/O completion ports (once a HANDLE is bound to an
+  // I/O completion port it cannot be unbound).
+  template <typename TunWrap>
+  class TunWrapAsioStream
+  {
+  public:
+    TunWrapAsioStream(const typename TunWrap::Ptr& tun_wrap_arg)
+      : tun_wrap(tun_wrap_arg) {}
+
+
+    void release()
+    {
+      tun_wrap.reset();
+    }
+
+    // Delegate STREAM methods (only need to support the
+    // subset of methods used by TunIO).
+    // Prototypes from asio/windows/basic_stream_handle.hpp
+
+    template <typename MUTABLE_BUFFER, typename HANDLER>
+    void async_read_some(const MUTABLE_BUFFER& buffers, HANDLER&& handler)
+    {
+      return tun_wrap->obj()->async_read_some(buffers, std::move(handler));
+    }
+
+    template <typename CONST_BUFFER>
+    std::size_t write_some(const CONST_BUFFER& buffers)
+    {
+      return tun_wrap->obj()->write_some(buffers);
+    }
+
+    void cancel()
+    {
+      tun_wrap->obj()->cancel();
+    }
+
+    void close()
+    {
+      tun_wrap->obj()->close();
+    }
+
+  private:
+    typename TunWrap::Ptr tun_wrap;
+  };
+
+}
+#endif