mirror of
https://github.com/deneraraujo/OpenVPNAdapter.git
synced 2026-04-24 00:00:05 +08:00
Sergey Abramchuk
56284506fc
35bbca799 Merged in OVPN3-184-generate-warning (pull request #1) a73d2ce68 Merged in antonio/OVPN3-169-pure-ssl-transport (pull request #3) 8d7f5f3c1 Merged in feature/docker (pull request #2) d9b5055cd [OVPN3-169] cli.cpp: compile with -DOPENVPN_TLS_LINK when requested 2d99bbfea [OVPN3-169] cliopt.hpp: add support for TLS transport module 62c8461d2 [OVPN3-169] tcpcli.hpp: add runtime support for TLSLink e0e76bb28 [OVPN3-169] tcplink: introduce LinkBase abstract class a71014d40 [OVPN3-169] tcplink: create LinkCommon class and inherit from it cfd6df5bc build system: fix 'git apply' 3e49de7de [OVPN3-210] ovpncli: handle "allow-name-constraints" for OpenSSL 08d72bd76 [OVPN3-184] mbedtls: handle Name Constraints 40c70113d [OVPN3-184] Add mbedTLS patch ef8d11f34 [OVPN3-169] OpenSSL: implement write_ciphertext_unbuffered() function 37dc86378 [OVPN3-169] mbedTLS: implement write_ciphertext_unbuffered() function 5834ed401 [OVPN3-169] SSLAPI: add write_ciphertext_unbuffered() function 071050b5f vars-linux-dbg: update linux debug profile 5bbfe68c3 [OVPN3-169] Protocol: add support for TLS transport protocol type dc12d3189 [OVPN3-223] build: add docker images git-subtree-dir: OpenVPN Adapter/Vendors/openvpn git-subtree-split: 35bbca799dfa3fbe8e17f8d6e94c3946c397b593
108 lines
3.2 KiB
C++
108 lines
3.2 KiB
C++
// OpenVPN -- An application to securely tunnel IP networks
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// over a single port, with support for SSL/TLS-based
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// session authentication and key exchange,
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// packet encryption, packet authentication, and
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// packet compression.
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//
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// Copyright (C) 2012-2017 OpenVPN Inc.
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License Version 3
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// as published by the Free Software Foundation.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Affero General Public License for more details.
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//
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// You should have received a copy of the GNU Affero General Public License
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// along with this program in the COPYING file.
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// If not, see <http://www.gnu.org/licenses/>.
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// Low-level TCP transport object.
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#ifndef OPENVPN_TRANSPORT_TCPLINK_H
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#define OPENVPN_TRANSPORT_TCPLINK_H
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#include <deque>
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#include <utility> // for std::move
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#include <memory>
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#include <openvpn/io/io.hpp>
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#include <openvpn/common/size.hpp>
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#include <openvpn/common/rc.hpp>
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#include <openvpn/common/socktypes.hpp>
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#include <openvpn/frame/frame.hpp>
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#include <openvpn/log/sessionstats.hpp>
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#include <openvpn/transport/pktstream.hpp>
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#include <openvpn/transport/mutate.hpp>
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#include <openvpn/transport/tcplinkcommon.hpp>
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#ifdef OPENVPN_GREMLIN
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#include <openvpn/transport/gremlin.hpp>
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#endif
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namespace openvpn {
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namespace TCPTransport {
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template <typename Protocol, typename ReadHandler, bool RAW_MODE_ONLY>
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class Link : public LinkCommon<Protocol,
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ReadHandler,
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RAW_MODE_ONLY>
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{
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typedef std::deque<BufferPtr> Queue;
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public:
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typedef LinkCommon<Protocol,
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ReadHandler,
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RAW_MODE_ONLY> Base;
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typedef RCPtr<Link> Ptr;
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typedef Protocol protocol;
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friend Base;
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Link(ReadHandler read_handler_arg,
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typename Protocol::socket& socket_arg,
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const size_t send_queue_max_size_arg, // 0 to disable
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const size_t free_list_max_size_arg,
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const Frame::Context& frame_context_arg,
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const SessionStats::Ptr& stats_arg)
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: Base(read_handler_arg, socket_arg, send_queue_max_size_arg,
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free_list_max_size_arg, frame_context_arg, stats_arg)
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{ }
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// Called by LinkCommon and TCPTransport Client class
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unsigned int send_queue_size() const
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{
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return Base::queue.size()
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#ifdef OPENVPN_GREMLIN
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+ (gremlin ? gremlin->send_size() : 0)
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#endif
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;
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}
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private:
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// Called by LinkCommon
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virtual void from_app_send_buffer(BufferPtr& buf) override
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{
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Base::queue_send_buffer(buf);
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}
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virtual void recv_buffer(PacketFrom::SPtr& pfp, const size_t bytes_recvd) override
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{
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bool requeue = true;
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OPENVPN_LOG_TCPLINK_VERBOSE("TCP recv raw=" << Base::raw_mode_read << " size=" << bytes_recvd);
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pfp->buf.set_size(bytes_recvd);
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requeue = Base::process_recv_buffer(pfp->buf);
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if (!Base::halt && requeue)
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Base::queue_recv(pfp.release()); // reuse PacketFrom object
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}
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};
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}
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} // namespace openvpn
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#endif
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