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_WIN_EVENT_H
+#define OPENVPN_WIN_EVENT_H
+
+#include <windows.h>
+
+#include <string>
+
+#include <openvpn/buffer/bufhex.hpp>
+#include <openvpn/win/winerr.hpp>
+#include <openvpn/win/scoped_handle.hpp>
+
+namespace openvpn {
+  namespace Win {
+
+    // Wrap a standard Windows Event object
+    class Event
+    {
+    public:
+      explicit Event(BOOL manual_reset=TRUE)
+      {
+	event.reset(::CreateEvent(NULL, manual_reset, FALSE, NULL));
+	if (!event.defined())
+	  {
+	    const Win::LastError err;
+	    OPENVPN_THROW_EXCEPTION("Win::Event: cannot create Windows event: " << err.message());
+	  }
+      }
+
+      std::string duplicate_local()
+      {
+	HANDLE new_handle;
+	if (!::DuplicateHandle(GetCurrentProcess(),
+			      event(),
+			      GetCurrentProcess(),
+			      &new_handle,
+			      0,
+			      FALSE,
+			      DUPLICATE_SAME_ACCESS))
+	  {
+	    const Win::LastError err;
+	    OPENVPN_THROW_EXCEPTION("Win::Event: DuplicateHandle failed: " << err.message());
+	  }
+	return BufHex::render(new_handle);
+      }
+
+      void signal_event()
+      {
+	if (event.defined())
+	  {
+	    ::SetEvent(event());
+	    event.close();
+	  }
+      }
+
+      void release_event()
+      {
+	event.close();
+      }
+
+      HANDLE operator()() const
+      {
+	return event();
+      }
+
+      void reset(HANDLE h)
+      {
+	event.reset(h);
+      }
+
+    private:
+      ScopedHANDLE event;
+    };
+
+    // Windows event object that automatically signals in the destructor
+    struct DestroyEvent : public Event
+    {
+      ~DestroyEvent()
+      {
+	signal_event();
+      }
+    };
+
+  }
+}
+
+#endif