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Addressing some bugs regarding lifetimes and callbacks that could trigger random-ish crashed - wip

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DcruBro
2026-03-17 17:00:20 +01:00
parent 1136892c5d
commit 604e4ace0f
9 changed files with 92 additions and 51 deletions
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20
src/server/main.cpp
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@@ -6,6 +6,7 @@
#include <iostream>
#include <thread>
#include <chrono>
#include <cstring>
#include <columnlynx/common/utils.hpp>
#include <columnlynx/common/panic_handler.hpp>
#include <columnlynx/server/net/tcp/tcp_server.hpp>
@@ -172,9 +173,24 @@ int main(int argc, char** argv) {
continue;
}
if (packet.size() < 20) {
Utils::warn("TUN: Dropping packet smaller than IPv4 header (" + std::to_string(packet.size()) + " bytes)");
continue;
}
const uint8_t* ip = packet.data();
uint32_t srcIP = ntohl(*(uint32_t*)(ip + 12)); // IPv4 source address offset
uint32_t dstIP = ntohl(*(uint32_t*)(ip + 16)); // IPv4 destination address offset
uint8_t ipVersion = (ip[0] >> 4);
if (ipVersion != 4) {
Utils::debug("TUN: Non-IPv4 packet received (version=" + std::to_string(ipVersion) + "), skipping server IPv4 routing path.");
continue;
}
uint32_t srcIPNet = 0;
uint32_t dstIPNet = 0;
std::memcpy(&srcIPNet, ip + 12, sizeof(srcIPNet)); // IPv4 source address offset
std::memcpy(&dstIPNet, ip + 16, sizeof(dstIPNet)); // IPv4 destination address offset
uint32_t srcIP = ntohl(srcIPNet);
uint32_t dstIP = ntohl(dstIPNet);
// First, check if destination IP is a registered client (e.g., server responding to client or client-to-client)
auto dstSession = SessionRegistry::getInstance().getByIP(dstIP);