Program Listing for File EncapsPacketFactory.cpp

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//
// Created by Aleksey Timin on 11/16/19.
//

#include <utils/Buffer.h>
#include "EncapsPacketFactory.h"

namespace eipScanner {
namespace eip {

    using utils::Buffer;

    EncapsPacket EncapsPacketFactory::createRegisterSessionPacket() const {
        EncapsPacket packet;
        packet.setCommand(EncapsCommands::REGISTER_SESSION);

        // See 2-4.4 Vol2 spec
        cip::CipUint protocolVersion = 1;
        cip::CipUint optionFlag = 0;

        Buffer buffer(4);
        buffer << protocolVersion << optionFlag;
        packet.setData(buffer.data());

        return packet;
    }

    EncapsPacket EncapsPacketFactory::createUnRegisterSessionPacket(cip::CipUdint sessionHandle) const {
        EncapsPacket packet;
        packet.setCommand(EncapsCommands::UN_REGISTER_SESSION);
        packet.setSessionHandle(sessionHandle);
        return packet;
    }

    EncapsPacket EncapsPacketFactory::createSendRRDataPacket(cip::CipUdint sessionHandle, cip::CipUint timeout,
                                                             std::vector<uint8_t> data) const {

        EncapsPacket packet;
        packet.setCommand(EncapsCommands::SEND_RR_DATA);
        packet.setSessionHandle(sessionHandle);

        cip::CipUdint interfaceHandle = 0;
        Buffer buffer(6 + data.size());
        buffer << interfaceHandle << timeout << data;
        packet.setData(buffer.data());

        return packet;
    }

    EncapsPacket EncapsPacketFactory::createListIdentityPacket() const {
        EncapsPacket packet;
        packet.setCommand(EncapsCommands::LIST_IDENTITY);
        packet.setSessionHandle(0);
        return packet;
    }
}
}