inet::sctp::SctpUdpHook Class Reference

#include <SctpUdpHook.h>

Inheritance diagram for inet::sctp::SctpUdpHook:

Public Member Functions
	SctpUdpHook ()
virtual Result	datagramPreRoutingHook (Packet *packet) override
	This is the first hook called by the network protocol before it routes a datagram that was received from the lower layer. More...
virtual Result	datagramForwardHook (Packet *packet) override
	This is the second hook called by the network protocol before it sends a datagram to the lower layer. More...
virtual Result	datagramPostRoutingHook (Packet *packet) override
	This is the last hook called by the network protocol before it sends a datagram to the lower layer. More...
virtual Result	datagramLocalInHook (Packet *packet) override
	This is the last hook called by the network protocol before it sends a datagram to the upper layer. More...
virtual Result	datagramLocalOutHook (Packet *packet) override
	This is the first hook called by the network protocol before it routes a datagram that was received from the upper layer. More...
Public Member Functions inherited from inet::NetfilterBase::HookBase
virtual	~HookBase ()
void	registeredTo (INetfilter *nf)
void	unregisteredFrom (INetfilter *nf)
bool	isRegisteredHook (INetfilter *nf)
Public Member Functions inherited from inet::INetfilter::IHook
virtual	~IHook ()

Additional Inherited Members
Public Types inherited from inet::INetfilter::IHook
enum	Type {   PREROUTING, LOCALIN, FORWARD, POSTROUTING,   LOCALOUT }
enum	Result { ACCEPT, DROP, QUEUE, STOLEN }
Protected Attributes inherited from inet::NetfilterBase::HookBase
std::vector< INetfilter * >	netfilters

Constructor & Destructor Documentation

SctpUdpHook()

inet::sctp::SctpUdpHook::SctpUdpHook ( )

inline

{}

Member Function Documentation

datagramForwardHook()

virtual Result inet::sctp::SctpUdpHook::datagramForwardHook ( Packet *  datagram )

inlineoverridevirtual

This is the second hook called by the network protocol before it sends a datagram to the lower layer.

This is done after the datagramPreRoutingHook or the datagramLocalInHook is called and the datagram is routed.

Implements inet::INetfilter::IHook.

{ return ACCEPT; }

datagramLocalInHook()

virtual Result inet::sctp::SctpUdpHook::datagramLocalInHook ( Packet *  datagram )

inlineoverridevirtual

This is the last hook called by the network protocol before it sends a datagram to the upper layer.

This is done after the datagramPreRoutingHook is called and the datagram is routed.

Implements inet::INetfilter::IHook.

{ return ACCEPT; }

datagramLocalOutHook()

virtual Result inet::sctp::SctpUdpHook::datagramLocalOutHook ( Packet *  datagram )

inlineoverridevirtual

This is the first hook called by the network protocol before it routes a datagram that was received from the upper layer.

The nextHopAddress is ignored when the outputNetworkInterface is a nullptr. After this is done

Implements inet::INetfilter::IHook.

{ return ACCEPT; }

datagramPostRoutingHook()

virtual Result inet::sctp::SctpUdpHook::datagramPostRoutingHook ( Packet *  datagram )

inlineoverridevirtual

This is the last hook called by the network protocol before it sends a datagram to the lower layer.

Implements inet::INetfilter::IHook.

{ return ACCEPT; }

datagramPreRoutingHook()

INetfilter::IHook::Result inet::sctp::SctpUdpHook::datagramPreRoutingHook ( Packet *  datagram )

overridevirtual

This is the first hook called by the network protocol before it routes a datagram that was received from the lower layer.

The nextHopAddress is ignored when the outputNetworkInterface is nullptr.

Implements inet::INetfilter::IHook.

{
    Enter_Method("datagramPreRoutingHook");
 
    EV_INFO << "SctpUdpHook::datagramPreRoutingHook\n";
    EV_INFO << "Packet: " << packet << endl;
//    auto networkProtocol = packet->getMandatoryTag<PacketProtocolTag>()->getProtocol();
    const auto& networkHeader = getNetworkProtocolHeader(packet);
    EV_INFO << "Protocol is " << networkHeader->getProtocol()->getId() << endl;
    if (networkHeader->getProtocol() == &Protocol::udp) {
        EV_INFO << "Protocol is udp\n";
        const auto& ipv4Header = removeNetworkProtocolHeader<Ipv4Header>(packet);
        EV_INFO << "network header removed. packet now " << packet << endl;
        auto udpHeader = packet->peekAtFront<UdpHeader>();
        EV_INFO << "udp header removed. packet now " << packet << endl;
        EV_INFO << "dest port " << udpHeader->getDestPort() << endl;
        if (udpHeader->getDestPort() == SCTP_UDP_PORT) {
            packet->removeAtFront<UdpHeader>();
            ipv4Header->setProtocolId(IP_PROT_SCTP);
        }
        insertNetworkProtocolHeader(packet, Protocol::ipv4, ipv4Header);
        packet->addTagIfAbsent<PacketProtocolTag>()->setProtocol(&Protocol::sctp);
        packet->addTagIfAbsent<DispatchProtocolReq>()->setProtocol(&Protocol::sctp);
        EV_INFO << "Packet mit Network: " << packet << endl;
    }
    else {
        EV_INFO << "Protocol is " << networkHeader->getProtocol()->getId() << endl;
    }
    return ACCEPT;
}

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The documentation for this class was generated from the following files:

• SctpUdpHook.h
• SctpUdpHook.cc