Олег Бородин
62 lines
1.8 KiB
C++
62 lines
1.8 KiB
C++
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extern "C" {
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#include <netinet/ip.h>
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#include <arpa/inet.h>
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}
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#include <expected>
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#include <string>
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#include <iostream>
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#include <format>
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#include <interface.hpp>
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#include <tunclient.hpp>
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std::expected<void, std::string> TClient::Create(const std::string name, const std::string addr, const int prefix) {
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auto createRes = iface.Create(name);
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if (!createRes) {
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return std::unexpected(createRes.error());
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}
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auto setaddrRes = iface.SetIP4Address(addr);
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if (!setaddrRes) {
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return std::unexpected(setaddrRes.error());
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}
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auto setprefixRes = iface.SetIP4Netmask(24);
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if (!setprefixRes) {
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return std::unexpected(setprefixRes.error());
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}
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auto setmtuRes = iface.SetMTU(1240);
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if (!setmtuRes) {
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return std::unexpected(setmtuRes.error());
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}
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auto upRes = iface.Up();
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if (!upRes) {
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return std::unexpected(upRes.error());
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}
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return {};
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}
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std::expected<void, std::string> TClient::Run() {
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while (true) {
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auto readRes = iface.Read();
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if (!readRes) {
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std::cerr << std::format("Error: {}\n", readRes.error());
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}
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auto value = readRes.value();
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std::cerr << std::format("Packet size: {}\n", value.size());
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struct iphdr* iphdr = (struct iphdr*)(value.data());
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struct in_addr src, dest;
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src.s_addr = iphdr->saddr;
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dest.s_addr = iphdr->daddr;
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std::cout << "Source IP: " << inet_ntoa(src) << std::endl;
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std::cout << "Dest IP: " << inet_ntoa(dest) << std::endl;
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std::cout << "Protocol: " << (int)iphdr->protocol << std::endl;
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}
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return {};
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}
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