ipv6-l3-protocol.h

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/*
 * Copyright (c) 2007-2009 Strasbourg University
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 * Author: Sebastien Vincent <vincent@clarinet.u-strasbg.fr>
 */
 
#ifndef IPV6_L3_PROTOCOL_H
#define IPV6_L3_PROTOCOL_H
 
#include "ipv6-header.h"
#include "ipv6-pmtu-cache.h"
#include "ipv6-routing-protocol.h"
#include "ipv6.h"
 
#include "ns3/ipv6-address.h"
#include "ns3/net-device.h"
#include "ns3/traced-callback.h"
 
#include <list>
 
class Ipv6L3ProtocolTestCase;
 
namespace ns3
{
 
class Node;
class Ipv6Interface;
class IpL4Protocol;
class Ipv6Route;
class Ipv6MulticastRoute;
class Ipv6RawSocketImpl;
class Icmpv6L4Protocol;
class Ipv6AutoconfiguredPrefix;
 
class Ipv6L3Protocol : public Ipv6
{
  public:
    static TypeId GetTypeId();
 
    static const uint16_t PROT_NUMBER;
 
    enum DropReason
    {
        DROP_TTL_EXPIRED = 1,  
        DROP_NO_ROUTE,         
        DROP_INTERFACE_DOWN,   
        DROP_ROUTE_ERROR,      
        DROP_UNKNOWN_PROTOCOL, 
        DROP_UNKNOWN_OPTION,   
        DROP_MALFORMED_HEADER, 
        DROP_FRAGMENT_TIMEOUT, 
    };
 
    Ipv6L3Protocol();
 
    ~Ipv6L3Protocol() override;
 
    // Delete copy constructor and assignment operator to avoid misuse
    Ipv6L3Protocol(const Ipv6L3Protocol&) = delete;
    Ipv6L3Protocol& operator=(const Ipv6L3Protocol&) = delete;
 
    void SetNode(Ptr<Node> node);
 
    void Insert(Ptr<IpL4Protocol> protocol) override;
    void Insert(Ptr<IpL4Protocol> protocol, uint32_t interfaceIndex) override;
 
    void Remove(Ptr<IpL4Protocol> protocol) override;
    void Remove(Ptr<IpL4Protocol> protocol, uint32_t interfaceIndex) override;
 
    Ptr<IpL4Protocol> GetProtocol(int protocolNumber) const override;
    Ptr<IpL4Protocol> GetProtocol(int protocolNumber, int32_t interfaceIndex) const override;
 
    Ptr<Socket> CreateRawSocket();
 
    void DeleteRawSocket(Ptr<Socket> socket);
 
    void SetDefaultTtl(uint8_t ttl);
 
    void SetDefaultTclass(uint8_t tclass);
 
    void Receive(Ptr<NetDevice> device,
                 Ptr<const Packet> p,
                 uint16_t protocol,
                 const Address& from,
                 const Address& to,
                 NetDevice::PacketType packetType);
 
    void Send(Ptr<Packet> packet,
              Ipv6Address source,
              Ipv6Address destination,
              uint8_t protocol,
              Ptr<Ipv6Route> route) override;
 
    void SetRoutingProtocol(Ptr<Ipv6RoutingProtocol> routingProtocol) override;
 
    Ptr<Ipv6RoutingProtocol> GetRoutingProtocol() const override;
 
    uint32_t AddInterface(Ptr<NetDevice> device) override;
 
    Ptr<Ipv6Interface> GetInterface(uint32_t i) const;
 
    uint32_t GetNInterfaces() const override;
 
    int32_t GetInterfaceForAddress(Ipv6Address addr) const override;
 
    int32_t GetInterfaceForPrefix(Ipv6Address addr, Ipv6Prefix mask) const override;
 
    int32_t GetInterfaceForDevice(Ptr<const NetDevice> device) const override;
 
    bool AddAddress(uint32_t i, Ipv6InterfaceAddress address, bool addOnLinkRoute = true) override;
 
    Ipv6InterfaceAddress GetAddress(uint32_t interfaceIndex, uint32_t addressIndex) const override;
 
    uint32_t GetNAddresses(uint32_t interface) const override;
 
    bool RemoveAddress(uint32_t interfaceIndex, uint32_t addressIndex) override;
 
    bool RemoveAddress(uint32_t interfaceIndex, Ipv6Address address) override;
 
    void SetMetric(uint32_t i, uint16_t metric) override;
 
    uint16_t GetMetric(uint32_t i) const override;
 
    uint16_t GetMtu(uint32_t i) const override;
 
    void SetPmtu(Ipv6Address dst, uint32_t pmtu) override;
 
    bool IsUp(uint32_t i) const override;
 
    void SetUp(uint32_t i) override;
 
    void SetDown(uint32_t i) override;
 
    bool IsForwarding(uint32_t i) const override;
 
    void SetForwarding(uint32_t i, bool val) override;
 
    Ipv6Address SourceAddressSelection(uint32_t interface, Ipv6Address dest) override;
 
    Ptr<NetDevice> GetNetDevice(uint32_t i) override;
 
    Ptr<Icmpv6L4Protocol> GetIcmpv6() const;
 
    void AddAutoconfiguredAddress(uint32_t interface,
                                  Ipv6Address network,
                                  Ipv6Prefix mask,
                                  uint8_t flags,
                                  uint32_t validTime,
                                  uint32_t preferredTime,
                                  Ipv6Address defaultRouter = Ipv6Address::GetZero());
 
    void RemoveAutoconfiguredAddress(uint32_t interface,
                                     Ipv6Address network,
                                     Ipv6Prefix mask,
                                     Ipv6Address defaultRouter);
 
    void RegisterExtensions() override;
    void RegisterOptions() override;
 
    virtual void ReportDrop(Ipv6Header ipHeader, Ptr<Packet> p, DropReason dropReason);
 
    typedef void (*SentTracedCallback)(const Ipv6Header& header,
                                       Ptr<const Packet> packet,
                                       uint32_t interface);
 
    typedef void (*TxRxTracedCallback)(Ptr<const Packet> packet,
                                       Ptr<Ipv6> ipv6,
                                       uint32_t interface);
 
    typedef void (*DropTracedCallback)(const Ipv6Header& header,
                                       Ptr<const Packet> packet,
                                       DropReason reason,
                                       Ptr<Ipv6> ipv6,
                                       uint32_t interface);
 
    void AddMulticastAddress(Ipv6Address address);
 
    void AddMulticastAddress(Ipv6Address address, uint32_t interface);
 
    void RemoveMulticastAddress(Ipv6Address address);
 
    void RemoveMulticastAddress(Ipv6Address address, uint32_t interface);
 
    bool IsRegisteredMulticastAddress(Ipv6Address address) const;
 
    bool IsRegisteredMulticastAddress(Ipv6Address address, uint32_t interface) const;
 
    bool ReachabilityHint(uint32_t ipInterfaceIndex, Ipv6Address address);
 
  protected:
    void DoDispose() override;
 
    void NotifyNewAggregate() override;
 
  private:
    friend class ::Ipv6L3ProtocolTestCase;
    friend class Ipv6ExtensionLooseRouting;
 
    typedef std::vector<Ptr<Ipv6Interface>> Ipv6InterfaceList;
 
    typedef std::map<Ptr<const NetDevice>, uint32_t> Ipv6InterfaceReverseContainer;
 
    typedef std::list<Ptr<Ipv6RawSocketImpl>> SocketList;
 
    typedef std::pair<int, int32_t> L4ListKey_t;
 
    typedef std::map<L4ListKey_t, Ptr<IpL4Protocol>> L4List_t;
 
    typedef std::list<Ptr<Ipv6AutoconfiguredPrefix>> Ipv6AutoconfiguredPrefixList;
 
    typedef std::list<Ptr<Ipv6AutoconfiguredPrefix>>::iterator Ipv6AutoconfiguredPrefixListI;
 
    void CallTxTrace(const Ipv6Header& ipHeader,
                     Ptr<Packet> packet,
                     Ptr<Ipv6> ipv6,
                     uint32_t interface);
 
    TracedCallback<Ptr<const Packet>, Ptr<Ipv6>, uint32_t> m_txTrace;
 
    TracedCallback<Ptr<const Packet>, Ptr<Ipv6>, uint32_t> m_rxTrace;
 
    TracedCallback<const Ipv6Header&, Ptr<const Packet>, DropReason, Ptr<Ipv6>, uint32_t>
        m_dropTrace;
 
    TracedCallback<const Ipv6Header&, Ptr<const Packet>, uint32_t> m_sendOutgoingTrace;
    TracedCallback<const Ipv6Header&, Ptr<const Packet>, uint32_t> m_unicastForwardTrace;
    TracedCallback<const Ipv6Header&, Ptr<const Packet>, uint32_t> m_localDeliverTrace;
 
    Ipv6Header BuildHeader(Ipv6Address src,
                           Ipv6Address dst,
                           uint8_t protocol,
                           uint16_t payloadSize,
                           uint8_t hopLimit,
                           uint8_t tclass);
 
    void SendRealOut(Ptr<Ipv6Route> route, Ptr<Packet> packet, const Ipv6Header& ipHeader);
 
    void IpForward(Ptr<const NetDevice> idev,
                   Ptr<Ipv6Route> rtentry,
                   Ptr<const Packet> p,
                   const Ipv6Header& header);
 
    void IpMulticastForward(Ptr<const NetDevice> idev,
                            Ptr<Ipv6MulticastRoute> mrtentry,
                            Ptr<const Packet> p,
                            const Ipv6Header& header);
 
    void LocalDeliver(Ptr<const Packet> p, const Ipv6Header& ip, uint32_t iif);
 
    void RouteInputError(Ptr<const Packet> p,
                         const Ipv6Header& ipHeader,
                         Socket::SocketErrno sockErrno);
 
    uint32_t AddIpv6Interface(Ptr<Ipv6Interface> interface);
 
    void SetupLoopback();
 
    void SetIpForward(bool forward) override;
 
    bool GetIpForward() const override;
 
    void SetMtuDiscover(bool mtuDiscover) override;
 
    bool GetMtuDiscover() const override;
 
    virtual void SetSendIcmpv6Redirect(bool sendIcmpv6Redirect);
 
    virtual bool GetSendIcmpv6Redirect() const;
 
    void SetStrongEndSystemModel(bool model) override;
    bool GetStrongEndSystemModel() const override;
 
    Ptr<Node> m_node;
 
    bool m_ipForward;
 
    bool m_mtuDiscover;
 
    Ptr<Ipv6PmtuCache> m_pmtuCache;
 
    L4List_t m_protocols;
 
    Ipv6InterfaceList m_interfaces;
 
    Ipv6InterfaceReverseContainer m_reverseInterfacesContainer;
 
    uint32_t m_nInterfaces;
 
    uint8_t m_defaultTtl;
 
    uint8_t m_defaultTclass;
 
    bool m_strongEndSystemModel;
 
    Ptr<Ipv6RoutingProtocol> m_routingProtocol;
 
    SocketList m_sockets;
 
    Ipv6AutoconfiguredPrefixList m_prefixes;
 
    bool m_sendIcmpv6Redirect;
 
    typedef std::pair<Ipv6Address, uint64_t> Ipv6RegisteredMulticastAddressKey_t;
 
    typedef std::map<Ipv6RegisteredMulticastAddressKey_t, uint32_t>
        Ipv6RegisteredMulticastAddress_t;
 
    typedef std::map<Ipv6RegisteredMulticastAddressKey_t, uint32_t>::iterator
        Ipv6RegisteredMulticastAddressIter_t;
 
    typedef std::map<Ipv6RegisteredMulticastAddressKey_t, uint32_t>::const_iterator
        Ipv6RegisteredMulticastAddressCIter_t;
 
    typedef std::map<Ipv6Address, uint32_t> Ipv6RegisteredMulticastAddressNoInterface_t;
 
    typedef std::map<Ipv6Address, uint32_t>::iterator
        Ipv6RegisteredMulticastAddressNoInterfaceIter_t;
 
    typedef std::map<Ipv6Address, uint32_t>::const_iterator
        Ipv6RegisteredMulticastAddressNoInterfaceCIter_t;
 
    Ipv6RegisteredMulticastAddress_t m_multicastAddresses;
 
    Ipv6RegisteredMulticastAddressNoInterface_t m_multicastAddressesNoInterface;
 
    Ipv6RoutingProtocol::UnicastForwardCallback m_ucb;   
    Ipv6RoutingProtocol::MulticastForwardCallback m_mcb; 
    Ipv6RoutingProtocol::LocalDeliverCallback m_lcb;     
    Ipv6RoutingProtocol::ErrorCallback m_ecb;            
};
 
} /* namespace ns3 */
 
#endif /* IPV6_L3_PROTOCOL_H */