702 lines
19 KiB
C++
702 lines
19 KiB
C++
/*
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* Copyright (c) 2007-2008 Louis Pasteur University
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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 General Public License version 2 as
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* 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 General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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* Author: Sebastien Vincent <vincent@clarinet.u-strasbg.fr>
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*/
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#ifndef IPV6_ADDRESS_H
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#define IPV6_ADDRESS_H
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#include "ipv4-address.h"
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#include "mac8-address.h"
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#include "ns3/address.h"
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#include "ns3/attribute-helper.h"
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#include <cstring>
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#include <ostream>
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#include <stdint.h>
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namespace ns3
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{
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class Ipv6Prefix;
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class Mac16Address;
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class Mac48Address;
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class Mac64Address;
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/**
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* \ingroup address
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* \class Ipv6Address
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* \brief Describes an IPv6 address.
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* \see Ipv6Prefix
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* \see attribute_Ipv6Address
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*/
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class Ipv6Address
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{
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public:
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/**
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* \brief Default constructor.
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*/
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Ipv6Address();
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/**
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* \brief Constructs an Ipv6Address by parsing the input C-string.
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* \param address the C-string containing the IPv6 address (e.g. 2001:660:4701::1).
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*/
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Ipv6Address(const char* address);
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/**
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* \brief Constructs an Ipv6Address by using the input 16 bytes.
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* \param address the 128-bit address
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* \warning the parameter must point on a 16 bytes integer array!
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*/
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Ipv6Address(uint8_t address[16]);
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/**
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* \brief Copy constructor.
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* \param addr Ipv6Address object
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*/
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Ipv6Address(const Ipv6Address& addr);
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/**
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* \brief Copy constructor.
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* \param addr Ipv6Address pointer
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*/
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Ipv6Address(const Ipv6Address* addr);
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/**
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* \brief Destructor.
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*/
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~Ipv6Address();
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/**
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* \brief Sets an Ipv6Address by parsing the input C-string.
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* \param address the C-string containing the IPv6 address (e.g. 2001:660:4701::1).
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*/
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void Set(const char* address);
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/**
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* \brief Set an Ipv6Address by using the input 16 bytes.
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*
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* \param address the 128-bit address
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* \warning the parameter must point on a 16 bytes integer array!
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*/
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void Set(uint8_t address[16]);
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/**
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* \brief Serialize this address to a 16-byte buffer.
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* \param buf the output buffer to which this address gets overwritten with this
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* Ipv6Address
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*/
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void Serialize(uint8_t buf[16]) const;
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/**
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* \brief Deserialize this address.
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* \param buf buffer to read address from
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* \return an Ipv6Address
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*/
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static Ipv6Address Deserialize(const uint8_t buf[16]);
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/**
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* \brief Make the solicited IPv6 address.
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* \param addr the IPv6 address
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* \return Solicited IPv6 address
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*/
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static Ipv6Address MakeSolicitedAddress(Ipv6Address addr);
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/**
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* \brief Make the Ipv4-mapped IPv6 address.
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* \param addr the IPv4 address
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* \return Ipv4-mapped IPv6 address
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*/
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static Ipv6Address MakeIpv4MappedAddress(Ipv4Address addr);
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/**
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* \brief Return the Ipv4 address.
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* \return Ipv4 address
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*/
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Ipv4Address GetIpv4MappedAddress() const;
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/**
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* \brief Make the autoconfigured IPv6 address from a Mac address.
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*
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* Actually the MAC supported are: Mac8, Mac16, Mac48, and Mac64.
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*
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* \param addr the MAC address.
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* \param prefix the IPv6 prefix
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* \return autoconfigured IPv6 address
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*/
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static Ipv6Address MakeAutoconfiguredAddress(Address addr, Ipv6Address prefix);
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/**
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* \brief Make the autoconfigured IPv6 address from a Mac address.
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*
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* Actually the MAC supported are: Mac8, Mac16, Mac48, and Mac64.
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*
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* \param addr the MAC address.
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* \param prefix the IPv6 prefix
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* \return autoconfigured IPv6 address
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*/
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static Ipv6Address MakeAutoconfiguredAddress(Address addr, Ipv6Prefix prefix);
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/**
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* \brief Make the autoconfigured IPv6 address with Mac16Address.
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*
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* The EUI-64 scheme used is based on the \RFC{4944}.
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*
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* \param addr the MAC address (16 bits).
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* \param prefix the IPv6 prefix
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* \return autoconfigured IPv6 address
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*/
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static Ipv6Address MakeAutoconfiguredAddress(Mac16Address addr, Ipv6Address prefix);
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/**
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* \brief Make the autoconfigured IPv6 address with Mac48Address.
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*
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* The EUI-64 scheme used is based on \RFC{2464}.
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*
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* \param addr the MAC address (48 bits).
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* \param prefix the IPv6 prefix
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* \return autoconfigured IPv6 address
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*/
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static Ipv6Address MakeAutoconfiguredAddress(Mac48Address addr, Ipv6Address prefix);
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/**
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* \brief Make the autoconfigured IPv6 address with Mac64Address.
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* \param addr the MAC address (64 bits).
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* \param prefix the IPv6 prefix
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* \return autoconfigured IPv6 address
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*/
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static Ipv6Address MakeAutoconfiguredAddress(Mac64Address addr, Ipv6Address prefix);
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/**
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* \brief Make the autoconfigured IPv6 address with Mac8Address.
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*
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* The EUI-64 scheme used is loosely based on the \RFC{2464}.
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*
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* \param addr the Mac8Address address (8 bits).
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* \param prefix the IPv6 prefix
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* \return autoconfigured IPv6 address
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*/
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static Ipv6Address MakeAutoconfiguredAddress(Mac8Address addr, Ipv6Address prefix);
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/**
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* \brief Make the autoconfigured link-local IPv6 address from a Mac address.
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*
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* Actually the MAC supported are: Mac8, Mac16, Mac48, and Mac64.
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*
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* \param mac the MAC address.
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* \return autoconfigured link-local IPv6 address
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*/
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static Ipv6Address MakeAutoconfiguredLinkLocalAddress(Address mac);
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/**
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* \brief Make the autoconfigured link-local IPv6 address with Mac16Address.
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*
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* The EUI-64 scheme used is based on the \RFC{4944}.
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*
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* \param mac the MAC address (16 bits).
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* \return autoconfigured link-local IPv6 address
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*/
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static Ipv6Address MakeAutoconfiguredLinkLocalAddress(Mac16Address mac);
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/**
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* \brief Make the autoconfigured link-local IPv6 address with Mac48Address.
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*
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* The EUI-64 scheme used is based on \RFC{2464}.
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*
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* \param mac the MAC address (48 bits).
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* \return autoconfigured link-local IPv6 address
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*/
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static Ipv6Address MakeAutoconfiguredLinkLocalAddress(Mac48Address mac);
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/**
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* \brief Make the autoconfigured link-local IPv6 address with Mac64Address.
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* \param mac the MAC address (64 bits).
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* \return autoconfigured link-local IPv6 address
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*/
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static Ipv6Address MakeAutoconfiguredLinkLocalAddress(Mac64Address mac);
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/**
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* \brief Make the autoconfigured link-local IPv6 address with Mac8Address.
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*
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* The EUI-64 scheme used is loosely based on the \RFC{2464}.
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*
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* \param mac the MAC address (8 bits).
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* \return autoconfigured link-local IPv6 address
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*/
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static Ipv6Address MakeAutoconfiguredLinkLocalAddress(Mac8Address mac);
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/**
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* \brief Print this address to the given output stream.
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*
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* The print format is in the typical "2001:660:4701::1".
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* \param os the output stream to which this Ipv6Address is printed
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*/
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void Print(std::ostream& os) const;
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/**
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* \brief If the IPv6 address is localhost (::1).
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* \return true if localhost, false otherwise
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*/
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bool IsLocalhost() const;
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/**
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* \brief If the IPv6 address is multicast (ff00::/8).
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* \return true if multicast, false otherwise
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*/
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bool IsMulticast() const;
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/**
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* \brief If the IPv6 address is link-local multicast (ff02::/16).
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* \return true if link-local multicast, false otherwise
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*/
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bool IsLinkLocalMulticast() const;
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/**
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* \brief If the IPv6 address is "all nodes multicast" (ff02::1/8).
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* \return true if "all nodes multicast", false otherwise
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*/
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bool IsAllNodesMulticast() const;
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/**
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* \brief If the IPv6 address is "all routers multicast" (ff02::2/8).
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* \return true if "all routers multicast", false otherwise
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*/
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bool IsAllRoutersMulticast() const;
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/**
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* \brief If the IPv6 address is a link-local address (fe80::/64).
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* \return true if the address is link-local, false otherwise
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*/
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bool IsLinkLocal() const;
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/**
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* \brief If the IPv6 address is a Solicited multicast address.
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* \return true if it is, false otherwise
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*/
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bool IsSolicitedMulticast() const;
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/**
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* \brief If the IPv6 address is the "Any" address.
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* \return true if it is, false otherwise
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*/
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bool IsAny() const;
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/**
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* \brief If the IPv6 address is a documentation address (2001:DB8::/32).
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* \return true if the address is documentation, false otherwise
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*/
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bool IsDocumentation() const;
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/**
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* \brief Compares an address and a prefix.
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* \param prefix the prefix to compare with
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* \return true if the address has the given prefix
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*/
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bool HasPrefix(const Ipv6Prefix& prefix) const;
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/**
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* \brief Combine this address with a prefix.
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* \param prefix a IPv6 prefix
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* \return an IPv6 address that is this address combined
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* (bitwise AND) with a prefix, yielding an IPv6 network address.
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*/
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Ipv6Address CombinePrefix(const Ipv6Prefix& prefix) const;
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/**
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* \brief If the Address matches the type.
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* \param address other address
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* \return true if the type matches, false otherwise
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*/
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static bool IsMatchingType(const Address& address);
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/**
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* \brief If the address is an IPv4-mapped address
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* \return true if address is an IPv4-mapped address, otherwise false.
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*/
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bool IsIpv4MappedAddress() const;
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/**
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* \brief Convert to Address object
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*/
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operator Address() const;
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/**
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* \brief Convert the Address object into an Ipv6Address ones.
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* \param address address to convert
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* \return an Ipv6Address
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*/
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static Ipv6Address ConvertFrom(const Address& address);
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/**
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* \brief convert the IPv6Address object to an Address object.
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* \return the Address object corresponding to this object.
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*/
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Address ConvertTo() const;
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/**
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* \return true if address is initialized (i.e., set to something), false otherwise
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*/
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bool IsInitialized() const;
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/**
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* \brief Get the 0 (::) Ipv6Address.
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* \return the :: Ipv6Address representation
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*/
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static Ipv6Address GetZero();
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/**
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* \brief Get the "any" (::) Ipv6Address.
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* \return the "any" (::) Ipv6Address
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*/
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static Ipv6Address GetAny();
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/**
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* \brief Get the "all nodes multicast" address.
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* \return the "ff02::2/8" Ipv6Address representation
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*/
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static Ipv6Address GetAllNodesMulticast();
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/**
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* \brief Get the "all routers multicast" address.
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* \return the "ff02::2/8" Ipv6Address representation
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*/
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static Ipv6Address GetAllRoutersMulticast();
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/**
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* \brief Get the "all hosts multicast" address.
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* \return the "ff02::3/8" Ipv6Address representation
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*/
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static Ipv6Address GetAllHostsMulticast();
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/**
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* \brief Get the loopback address.
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* \return the "::1/128" Ipv6Address representation.
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*/
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static Ipv6Address GetLoopback();
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/**
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* \brief Get the "all-1" IPv6 address (ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff).
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* \return all-1 Ipv6Address representation
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*/
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static Ipv6Address GetOnes();
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/**
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* \brief Get the bytes corresponding to the address.
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* \param buf buffer to store the data
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*/
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void GetBytes(uint8_t buf[16]) const;
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private:
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/**
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* \brief Return the Type of address.
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* \return type of address
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*/
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static uint8_t GetType();
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/**
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* \brief The address representation on 128 bits (16 bytes).
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*/
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uint8_t m_address[16];
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bool m_initialized; //!< IPv6 address has been explicitly initialized to a valid value.
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/**
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* \brief Equal to operator.
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*
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* \param a the first operand.
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* \param b the first operand.
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* \returns true if the operands are equal.
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*/
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friend bool operator==(const Ipv6Address& a, const Ipv6Address& b);
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/**
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* \brief Not equal to operator.
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*
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* \param a the first operand.
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* \param b the first operand.
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* \returns true if the operands are not equal.
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*/
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friend bool operator!=(const Ipv6Address& a, const Ipv6Address& b);
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/**
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* \brief Less than to operator.
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*
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* \param a the first operand.
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* \param b the first operand.
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* \returns true if the first operand is less than the second.
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*/
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friend bool operator<(const Ipv6Address& a, const Ipv6Address& b);
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};
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/**
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* \ingroup address
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* \class Ipv6Prefix
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* \brief Describes an IPv6 prefix. It is just a bitmask like Ipv4Mask.
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* \see Ipv6Address
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* \see attribute_Ipv6Prefix
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*/
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class Ipv6Prefix
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{
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public:
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/**
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* \brief Default constructor.
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*/
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Ipv6Prefix();
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/**
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* \brief Constructs an Ipv6Prefix by using the input 16 bytes.
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*
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* The prefix length is calculated as the minimum prefix length, i.e.,
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* 2001:db8:cafe:: will have a 47 bit prefix length.
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*
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* \param prefix the 128-bit prefix
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*/
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Ipv6Prefix(uint8_t prefix[16]);
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/**
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* \brief Constructs an Ipv6Prefix by using the input string.
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*
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* The prefix length is calculated as the minimum prefix length, i.e.,
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* 2001:db8:cafe:: will have a 47 bit prefix length.
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*
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* \param prefix the 128-bit prefix
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*/
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Ipv6Prefix(const char* prefix);
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/**
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* \brief Constructs an Ipv6Prefix by using the input 16 bytes.
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* \param prefix the 128-bit prefix
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* \param prefixLength the prefix length
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*/
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Ipv6Prefix(uint8_t prefix[16], uint8_t prefixLength);
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/**
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* \brief Constructs an Ipv6Prefix by using the input string.
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* \param prefix the 128-bit prefix
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* \param prefixLength the prefix length
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*/
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Ipv6Prefix(const char* prefix, uint8_t prefixLength);
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/**
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* \brief Constructs an Ipv6Prefix by using the input number of bits.
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* \param prefix number of bits of the prefix (0 - 128)
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* \note A valid number of bits is between 0 and 128).
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*/
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Ipv6Prefix(uint8_t prefix);
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/**
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* \brief Copy constructor.
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* \param prefix Ipv6Prefix object
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*/
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Ipv6Prefix(const Ipv6Prefix& prefix);
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/**
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* \brief Copy constructor.
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* \param prefix Ipv6Prefix pointer
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*/
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Ipv6Prefix(const Ipv6Prefix* prefix);
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/**
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* \brief Destructor.
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*/
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~Ipv6Prefix();
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/**
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* \brief If the Address match the type.
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* \param a a first address
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* \param b a second address
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* \return true if the type match, false otherwise
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*/
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bool IsMatch(Ipv6Address a, Ipv6Address b) const;
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/**
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* \brief Get the bytes corresponding to the prefix.
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* \param buf buffer to store the data
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*/
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void GetBytes(uint8_t buf[16]) const;
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/**
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* \brief Convert the Prefix into an IPv6 Address.
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* \return an IPv6 address representing the prefix
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*/
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Ipv6Address ConvertToIpv6Address() const;
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/**
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* \brief Get prefix length.
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* \return prefix length
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*/
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uint8_t GetPrefixLength() const;
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/**
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* \brief Set prefix length.
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* \param prefixLength the prefix length
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*/
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void SetPrefixLength(uint8_t prefixLength);
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/**
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* \brief Get the minimum prefix length, i.e., 128 - the length of the largest sequence
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* trailing zeroes.
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* \return minimum prefix length
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*/
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uint8_t GetMinimumPrefixLength() const;
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/**
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* \brief Print this address to the given output stream.
|
|
*
|
|
* The print format is in the typical "2001:660:4701::1".
|
|
* \param os the output stream to which this Ipv6Address is printed
|
|
*/
|
|
void Print(std::ostream& os) const;
|
|
|
|
/**
|
|
* \brief Get the loopback prefix ( /128).
|
|
* \return a Ipv6Prefix corresponding to loopback prefix
|
|
*/
|
|
static Ipv6Prefix GetLoopback();
|
|
|
|
/**
|
|
* \brief Get the "all-1" IPv6 mask (ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff).
|
|
* \return /128 Ipv6Prefix representation
|
|
*/
|
|
static Ipv6Prefix GetOnes();
|
|
|
|
/**
|
|
* \brief Get the zero prefix ( /0).
|
|
* \return an Ipv6Prefix
|
|
*/
|
|
static Ipv6Prefix GetZero();
|
|
|
|
private:
|
|
/**
|
|
* \brief The prefix representation.
|
|
*/
|
|
uint8_t m_prefix[16];
|
|
|
|
/**
|
|
* \brief The prefix length.
|
|
*/
|
|
uint8_t m_prefixLength;
|
|
|
|
/**
|
|
* \brief Equal to operator.
|
|
*
|
|
* \param a the first operand
|
|
* \param b the first operand
|
|
* \returns true if the operands are equal
|
|
*/
|
|
friend bool operator==(const Ipv6Prefix& a, const Ipv6Prefix& b);
|
|
|
|
/**
|
|
* \brief Not equal to operator.
|
|
*
|
|
* \param a the first operand
|
|
* \param b the first operand
|
|
* \returns true if the operands are not equal
|
|
*/
|
|
friend bool operator!=(const Ipv6Prefix& a, const Ipv6Prefix& b);
|
|
};
|
|
|
|
ATTRIBUTE_HELPER_HEADER(Ipv6Address);
|
|
ATTRIBUTE_HELPER_HEADER(Ipv6Prefix);
|
|
|
|
/**
|
|
* \brief Stream insertion operator.
|
|
*
|
|
* \param os the reference to the output stream
|
|
* \param address the Ipv6Address
|
|
* \returns the reference to the output stream
|
|
*/
|
|
std::ostream& operator<<(std::ostream& os, const Ipv6Address& address);
|
|
|
|
/**
|
|
* \brief Stream insertion operator.
|
|
*
|
|
* \param os the reference to the output stream
|
|
* \param prefix the Ipv6Prefix
|
|
* \returns the reference to the output stream
|
|
*/
|
|
std::ostream& operator<<(std::ostream& os, const Ipv6Prefix& prefix);
|
|
|
|
/**
|
|
* \brief Stream extraction operator.
|
|
*
|
|
* \param is the reference to the input stream
|
|
* \param address the Ipv6Address
|
|
* \returns the reference to the input stream
|
|
*/
|
|
std::istream& operator>>(std::istream& is, Ipv6Address& address);
|
|
|
|
/**
|
|
* \brief Stream extraction operator.
|
|
*
|
|
* \param is the reference to the input stream
|
|
* \param prefix the Ipv6Prefix
|
|
* \returns the reference to the input stream
|
|
*/
|
|
std::istream& operator>>(std::istream& is, Ipv6Prefix& prefix);
|
|
|
|
inline bool
|
|
operator==(const Ipv6Address& a, const Ipv6Address& b)
|
|
{
|
|
return !std::memcmp(a.m_address, b.m_address, 16);
|
|
}
|
|
|
|
inline bool
|
|
operator!=(const Ipv6Address& a, const Ipv6Address& b)
|
|
{
|
|
return std::memcmp(a.m_address, b.m_address, 16);
|
|
}
|
|
|
|
inline bool
|
|
operator<(const Ipv6Address& a, const Ipv6Address& b)
|
|
{
|
|
return std::memcmp(a.m_address, b.m_address, 16) < 0;
|
|
}
|
|
|
|
inline bool
|
|
operator==(const Ipv6Prefix& a, const Ipv6Prefix& b)
|
|
{
|
|
return !std::memcmp(a.m_prefix, b.m_prefix, 16);
|
|
}
|
|
|
|
inline bool
|
|
operator!=(const Ipv6Prefix& a, const Ipv6Prefix& b)
|
|
{
|
|
return std::memcmp(a.m_prefix, b.m_prefix, 16);
|
|
}
|
|
|
|
/**
|
|
* \class Ipv6AddressHash
|
|
* \brief Hash function class for IPv6 addresses.
|
|
*/
|
|
class Ipv6AddressHash
|
|
{
|
|
public:
|
|
/**
|
|
* \brief Returns the hash of an IPv6 address.
|
|
* \param x IPv6 address to hash
|
|
* \returns the hash of the address
|
|
*/
|
|
size_t operator()(const Ipv6Address& x) const;
|
|
};
|
|
|
|
} /* namespace ns3 */
|
|
|
|
#endif /* IPV6_ADDRESS_H */
|