91 lines
3.3 KiB
C++
91 lines
3.3 KiB
C++
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#include <iostream>
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#include <iomanip>
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#include <PcapLiveDeviceList.h>
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#include <unistd.h>
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#include <sys/stat.h>
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#include <netinet/in.h>
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#include <IPv4Layer.h>
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std::string getProtocolTypeAsString(pcpp::ProtocolType protocolType)
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{
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switch (protocolType)
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{
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case pcpp::Ethernet:
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return "Ethernet";
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case pcpp::IPv4:
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return "IPv4";
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case pcpp::TCP:
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return "TCP";
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case pcpp::HTTPRequest:
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case pcpp::HTTPResponse:
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return "HTTP";
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default:
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return "Unknown";
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}
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}
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static bool onPacketArrivesBlockingMode(pcpp::RawPacket *packet, pcpp::PcapLiveDevice *dev, void *cookie)
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{
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pcpp::Packet parsedPacket(packet);
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for (pcpp::Layer *curLayer = parsedPacket.getFirstLayer(); curLayer != NULL; curLayer = curLayer->getNextLayer())
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{
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std::cout << "Тип слоя: " << getProtocolTypeAsString(curLayer->getProtocol()).c_str()
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<< "; Общие данные: " << (int) curLayer->getDataLen()
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<< " [байт]; Данные слоя: " << (int) curLayer->getHeaderLen()
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<< " [байт]; Полезная нагрузка слоя: " << (int) curLayer->getLayerPayloadSize()
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<< " [байт]" << std::endl;
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}
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pcpp::IPv4Layer *ipLayer = parsedPacket.getLayerOfType<pcpp::IPv4Layer>();
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if (ipLayer == nullptr)
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{
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std::cerr << "Что-то пошло не так, не удалось найти уровень IPv4" << std::endl;
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exit(4);
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}
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std::cout << "\tIP-адрес источника: " << ipLayer->getSrcIPv4Address().toString() << std::endl
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<< "\tIP-адрес назначения: " << ipLayer->getDstIPv4Address().toString() << std::endl
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<< "\tIP ID: " << ntohs(ipLayer->getIPv4Header()->ipId) << std::endl
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<< "\tTTL: " << static_cast<int>(ipLayer->getIPv4Header()->timeToLive) << std::endl << std::endl;
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return false;
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}
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int main(int argc, char *argv[])
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{
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if (argc != 2)
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{
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std::cerr << "Необходимо указать IP адрес в качестве аргумента" << std::endl;
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exit(1);
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}
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std::string interfaceIPAddr = argv[1];
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pcpp::PcapLiveDevice *dev = pcpp::PcapLiveDeviceList::getInstance().getPcapLiveDeviceByIp(interfaceIPAddr.c_str());
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if (dev == nullptr)
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{
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std::cerr << "Не удается найти интерфейс с IPv4-адресом " << interfaceIPAddr.c_str() << std::endl;
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exit(2);
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}
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std::cout << "Информация о сетевом интерфейсе: " << std::endl
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<< "\tИнтерфейс: " << dev->getName() << std::endl
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<< "\tОписание: " << dev->getDesc() << std::endl
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<< "\tMAC адрес: " << dev->getMacAddress().toString() << std::endl
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<< "\tШлюз: " << dev->getDefaultGateway().toString() << std::endl;
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if (dev->getDnsServers().size() > 0)
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std::cout << "\tDNS сервер: " << dev->getDnsServers().at(0).toString() << std::endl;
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std::cout << std::endl;
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if (!dev->open())
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{
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std::cerr << "Не удается открыть устройство" << std::endl;
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exit(3);
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}
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dev->startCaptureBlockingMode(onPacketArrivesBlockingMode, nullptr, 0);
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return 0;
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}
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