[英]OMNET++: How to obtain frame's source MAC Address in INET 4.0?
我將INET
Framework 4.0與OMNET++
。 我已經自定義了Ieee80211ScalarRadio
模塊,以讀取從AdhocHost
各個AP接收到的信標的信號功率和源MAC地址。
這是我的自定義CIeee80211ScalarRadio.ned
文件:
import inet.physicallayer.ieee80211.packetlevel.Ieee80211ScalarRadio;
module CIeee80211ScalarRadio extends Ieee80211ScalarRadio
{
@class(inet::physicallayer::CIeee80211ScalarRadio);
}
這是對應的CIeee80211ScalarRadio.cc
文件:
#include "inet/physicallayer/ieee80211/packetlevel/Ieee80211Radio.h"
#include "inet/physicallayer/common/packetlevel/SignalTag_m.h"
#include "inet/linklayer/common/MacAddressTag_m.h"
#include <omnetpp.h>
#include <string>
#include <cmath>
#include <iostream>
namespace inet{
namespace physicallayer{
class CIeee80211ScalarRadio : public Ieee80211Radio{
protected:
virtual void sendUp(Packet *macFrame) override;
};
Define_Module(CIeee80211ScalarRadio);
void CIeee80211ScalarRadio::sendUp(Packet *macFrame)
{
if (macFrame->findTag<SignalPowerInd>() != nullptr) {
auto signalPowerInd = macFrame->getTag<SignalPowerInd>();
auto rxPower = signalPowerInd->getPower().get();
double pdBm = 10*log10(rxPower)+30;
EV_INFO << "RX power = " << pdBm << " dBm" << endl;
}
if(macFrame->findTag<MacAddress>() != nullptr){
auto macAddress = macFrame->getTag<MacAddress>();
EV_INFO << "Mac Address = " << macAddress << endl;
}
Radio::sendUp(macFrame);
}
}//namespace physicallayer
}//namespace inet
如您所見,我正在重寫Ieee80211ScalarRadio
的sendUp()
方法,以從macFrame
獲取所需的值。
我可以成功提取RxPower
,但是,當我對MacAddress
做同樣的事情時,我在INET
自己的源代碼中收到以下編譯器錯誤:
../inet4/src/inet/common/packet/tag/TagSet.h:123:36: error: static_cast from 'std::__1::__vector_base<omnetpp::cObject *, std::__1::allocator<omnetpp::cObject *> >::value_type' (aka 'omnetpp::cObject *') to 'inet::MacAddress *', which are not related by inheritance, is not allowed
如何獲得MacAddress
值而沒有任何錯誤?
包含MAC地址的標記的專有名稱是MacAddressInd
,而不是MacAddress
。 它已包含在MacAddressTag_m.h
中聲明。
編輯
附加說明: MacAddressInd
包含兩個地址:源和目標。 因此,您應該確定要獲取的對象,例如:
auto macAddress = macFrame->getTag<MacAddressInd>()->getSrcAddress();
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