void TcpReassembly::handleFinOrRst(TcpReassemblyData* tcpReassemblyData, int sideIndex, uint32_t flowKey)
{
// if this side already saw a FIN or RST packet, do nothing and return
if (tcpReassemblyData->twoSides[sideIndex].gotFinOrRst)
return;
LOG_DEBUG("Handling FIN or RST packet on side %d", sideIndex);
// set FIN/RST flag for this side
tcpReassemblyData->twoSides[sideIndex].gotFinOrRst = true;
// check if the other side also sees FIN or RST packet. If so - close the flow. Otherwise - only clear the out-of-order packets for this side
int otherSideIndex = 1 - sideIndex;
if (tcpReassemblyData->twoSides[otherSideIndex].gotFinOrRst)
closeConnectionInternal(flowKey, TcpReassembly::TcpReassemblyConnectionClosedByFIN_RST);
else
checkOutOfOrderFragments(tcpReassemblyData, sideIndex, true);
}
void WdtSocket::closeNoCheck() {
closeConnectionInternal(false);
}
ErrorCode WdtSocket::closeConnection() {
return closeConnectionInternal(true);
}
void TcpReassembly::closeConnection(uint32_t flowKey)
{
closeConnectionInternal(flowKey, TcpReassembly::TcpReassemblyConnectionClosedManually);
}
