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87 lines
2.7 KiB
C++
87 lines
2.7 KiB
C++
/*
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Copyright (c) 2007-2016 Contributors as noted in the AUTHORS file
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This file is part of libzmq, the ZeroMQ core engine in C++.
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libzmq is free software; you can redistribute it and/or modify it under
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the terms of the GNU Lesser General Public License (LGPL) as published
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by the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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As a special exception, the Contributors give you permission to link
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this library with independent modules to produce an executable,
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regardless of the license terms of these independent modules, and to
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copy and distribute the resulting executable under terms of your choice,
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provided that you also meet, for each linked independent module, the
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terms and conditions of the license of that module. An independent
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module is a module which is not derived from or based on this library.
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If you modify this library, you must extend this exception to your
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version of the library.
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libzmq is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
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License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef __ZMQ_CURVE_CLIENT_HPP_INCLUDED__
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#define __ZMQ_CURVE_CLIENT_HPP_INCLUDED__
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#ifdef ZMQ_HAVE_CURVE
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#include "curve_mechanism_base.hpp"
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#include "options.hpp"
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#include "curve_client_tools.hpp"
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namespace zmq
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{
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class msg_t;
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class session_base_t;
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class curve_client_t ZMQ_FINAL : public curve_mechanism_base_t
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{
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public:
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curve_client_t (session_base_t *session_,
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const options_t &options_,
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const bool downgrade_sub_);
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~curve_client_t () ZMQ_FINAL;
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// mechanism implementation
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int next_handshake_command (msg_t *msg_) ZMQ_FINAL;
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int process_handshake_command (msg_t *msg_) ZMQ_FINAL;
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int encode (msg_t *msg_) ZMQ_FINAL;
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int decode (msg_t *msg_) ZMQ_FINAL;
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status_t status () const ZMQ_FINAL;
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private:
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enum state_t
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{
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send_hello,
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expect_welcome,
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send_initiate,
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expect_ready,
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error_received,
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connected
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};
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// Current FSM state
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state_t _state;
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// CURVE protocol tools
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curve_client_tools_t _tools;
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int produce_hello (msg_t *msg_);
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int process_welcome (const uint8_t *msg_data_, size_t msg_size_);
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int produce_initiate (msg_t *msg_);
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int process_ready (const uint8_t *msg_data_, size_t msg_size_);
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int process_error (const uint8_t *msg_data_, size_t msg_size_);
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};
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}
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#endif
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#endif
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