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
@@ -0,0 +1,113 @@
+//    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_COMMON_ACTIONTHREAD_H
+#define OPENVPN_COMMON_ACTIONTHREAD_H
+
+#include <thread>
+
+#include <openvpn/common/rc.hpp>
+#include <openvpn/common/action.hpp>
+#include <openvpn/log/logthread.hpp>
+
+namespace openvpn {
+
+  class ActionThread : public RC<thread_safe_refcount>
+  {
+  public:
+    typedef RCPtr<ActionThread> Ptr;
+
+    struct Notify
+    {
+      virtual void action_thread_finished(const ActionThread* self, bool status) = 0;
+    };
+
+    ActionThread(openvpn_io::io_context& io_context_arg,
+		 const ActionList::Ptr& action_list,
+		 Notify* completion_handler_arg)
+      : io_context(io_context_arg),
+	thread(nullptr),
+	actions(action_list),
+	completion_handler(completion_handler_arg)
+    {
+      if (actions)
+	thread = new std::thread(&ActionThread::thread_func, this);
+    }
+
+    void stop(const bool halt)
+    {
+      if (thread)
+	{
+	  if (halt)
+	    actions->halt();
+	  thread->join();
+	  delete thread;
+	  thread = nullptr;
+	  // Necessary because no guarantee that completion_handler
+	  // obj will remain in scope during io_context.post delay.
+	  completion_handler = nullptr;
+	}
+    }
+
+    virtual ~ActionThread()
+    {
+      stop(true);
+    }
+
+  private:
+    void completion_post(bool status)
+    {
+      Notify* n = completion_handler;
+      completion_handler = nullptr;
+      if (n)
+	n->action_thread_finished(this, status);
+    }
+
+    void thread_func()
+    {
+      Log::Context logctx(logwrap);
+      bool status = false;
+      try {
+	OPENVPN_LOG("START THREAD...");
+	status = actions->execute();
+	OPENVPN_LOG("END THREAD");
+      }
+      catch (const std::exception& e)
+	{
+	  OPENVPN_LOG("ActionThread exception: " << e.what());
+	}
+      openvpn_io::post(io_context, [self=Ptr(this), status]()
+		 {
+		   self->completion_post(status);
+		 });
+    }
+
+    openvpn_io::io_context& io_context;
+    std::thread* thread;
+    ActionList::Ptr actions;       // actions to execute in child thread
+    Notify* completion_handler;    // completion handler
+    Log::Context::Wrapper logwrap; // used to carry forward the log context from parent thread
+  };
+
+}
+
+#endif