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_BUFFER_BUFCOMPOSED_H
+#define OPENVPN_BUFFER_BUFCOMPOSED_H
+
+#include <openvpn/common/exception.hpp>
+#include <openvpn/buffer/bufcomplete.hpp>
+#include <openvpn/buffer/buflist.hpp>
+
+namespace openvpn {
+  class BufferComposed
+  {
+  public:
+    class Complete : public BufferComplete
+    {
+    public:
+      BufferPtr get()
+      {
+#if 0 // don't include for production
+	if (iter_defined())
+	  throw Exception("BufferComposed::Complete: residual data");
+#endif
+	BufferPtr ret = bc.bv.join();
+	bc.bv.clear();
+	return ret;
+      }
+
+    private:
+      friend class BufferComposed;
+
+      Complete(BufferComposed& bc_arg)
+	: bc(bc_arg),
+	  iter(bc.bv.cbegin())
+      {
+	next_buffer();
+      }
+
+      bool iter_defined()
+      {
+	return iter != bc.bv.end();
+      }
+
+      virtual void next_buffer() override
+      {
+	if (iter_defined())
+	  reset_buf(**iter++);
+	else
+	  reset_buf();
+      }
+
+      BufferComposed& bc;
+      BufferVector::const_iterator iter;
+    };
+
+    size_t size() const
+    {
+      return bv.join_size();
+    }
+
+    void put(BufferPtr bp)
+    {
+      bv.push_back(std::move(bp));
+    }
+
+    Complete complete()
+    {
+      return Complete(*this);
+    }
+
+  private:
+    BufferVector bv;
+  };
+}
+
+#endif