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/>.
+
+// A simple class that allows an arbitrary set of posix signals to be
+// associated with an Asio handler.
+
+#ifndef OPENVPN_ASIO_ASIOSIGNAL_H
+#define OPENVPN_ASIO_ASIOSIGNAL_H
+
+#include <openvpn/io/io.hpp>
+
+#include <openvpn/common/platform.hpp>
+#include <openvpn/common/rc.hpp>
+
+namespace openvpn {
+
+  class ASIOSignals : public RC<thread_safe_refcount>
+  {
+  public:
+    typedef RCPtr<ASIOSignals> Ptr;
+
+    ASIOSignals(openvpn_io::io_context& io_context)
+      : halt(false), signals_(io_context) {}
+
+    enum {
+      S_SIGINT  = (1<<0),
+      S_SIGTERM = (1<<1),
+#ifndef OPENVPN_PLATFORM_WIN
+      S_SIGQUIT = (1<<2),
+      S_SIGHUP  = (1<<3),
+      S_SIGUSR1  = (1<<4),
+      S_SIGUSR2  = (1<<5),
+#endif
+    };
+
+    template <typename SignalHandler>
+    void register_signals(SignalHandler stop_handler, unsigned int sigmask = (S_SIGINT|S_SIGTERM))
+    {
+      if (sigmask & S_SIGINT)
+	signals_.add(SIGINT);
+      if (sigmask & S_SIGTERM)
+	signals_.add(SIGTERM);
+#ifndef OPENVPN_PLATFORM_WIN
+      if (sigmask & S_SIGQUIT)
+	signals_.add(SIGQUIT);
+      if (sigmask & S_SIGHUP)
+	signals_.add(SIGHUP);
+      if (sigmask & S_SIGUSR1)
+	signals_.add(SIGUSR1);
+      if (sigmask & S_SIGUSR2)
+	signals_.add(SIGUSR2);
+#endif
+      signals_.async_wait(stop_handler);
+    }
+
+    template <typename SignalHandler>
+    void register_signals_all(SignalHandler stop_handler)
+    {
+      register_signals(stop_handler,
+		         S_SIGINT
+		       | S_SIGTERM
+#ifndef OPENVPN_PLATFORM_WIN
+		       | S_SIGHUP
+		       | S_SIGUSR1
+		       | S_SIGUSR2
+#endif
+		       );
+    }
+
+    void cancel()
+    {
+      if (!halt)
+	{
+	  halt = true;
+	  signals_.cancel();
+	}
+    }
+
+  private:
+    bool halt;
+    openvpn_io::signal_set signals_;
+  };
+
+}
+
+#endif