108 lines
3.2 KiB
C++
108 lines
3.2 KiB
C++
/*
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* Copyright (c) 2017, Matias Fontanini
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following disclaimer
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* in the documentation and/or other materials provided with the
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* distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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#ifndef TINS_TCP_IP_STREAM_ID_H
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#define TINS_TCP_IP_STREAM_ID_H
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#include <tins/config.h>
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#ifdef TINS_HAVE_TCPIP
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#include <array>
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#include <stdint.h>
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namespace Tins {
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class PDU;
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class IPv4Address;
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class IPv6Address;
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namespace TCPIP {
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class Stream;
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/**
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* \brief Uniquely identifies a stream.
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*
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* This struct is used to track TCP/UDP streams. It keeps track of minimum and maximum
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* addresses/ports in a stream to match packets coming from any of the 2 endpoints
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* into the same object.
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*
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* This struct implements operator< so it can be used as a key on std::maps
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*/
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struct StreamIdentifier {
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/**
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* The type used to store each endpoint's address
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*/
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typedef std::array<uint8_t, 16> address_type;
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/**
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* Default constructor
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*/
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StreamIdentifier();
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/**
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* Constructs a StreamIdentifier
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*
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* \param client_addr Client's address
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* \param client_port Port's port
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* \param server_addr Server's address
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* \param server_port Server's port
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*/
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StreamIdentifier(const address_type& client_addr, uint16_t client_port,
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const address_type& server_addr, uint16_t server_port);
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/**
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* Indicates whether this stream identifier is lower than rhs
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*/
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bool operator<(const StreamIdentifier& rhs) const;
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/**
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* Compares this stream identifier for equality
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*/
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bool operator==(const StreamIdentifier& rhs) const;
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address_type min_address;
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address_type max_address;
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uint16_t min_address_port;
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uint16_t max_address_port;
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static StreamIdentifier make_identifier(const PDU& packet);
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static StreamIdentifier make_identifier(const Stream& stream);
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static address_type serialize(IPv4Address address);
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static address_type serialize(const IPv6Address& address);
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};
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} // TCPIP
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} // Tins
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#endif // TINS_HAVE_TCPIP
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#endif // TINS_TCP_IP_STREAM_ID_H
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