AppleWin/source/Tfe/PCapBackend.cpp

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/*
AppleWin : An Apple //e emulator for Windows
Copyright (C) 2022, Andrea Odetti
AppleWin is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
AppleWin is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with AppleWin; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "StdAfx.h"
#include "PCapBackend.h"
#include "tfearch.h"
#include "../Common.h"
#include "../Registry.h"
#ifdef _MSC_VER
#include <iphlpapi.h>
#endif
PCapBackend::PCapBackend(const std::string & interfaceName) : m_interfaceName(interfaceName)
{
m_tfePcapFP = TfePcapOpenAdapter(interfaceName);
}
PCapBackend::~PCapBackend()
{
TfePcapCloseAdapter(m_tfePcapFP);
m_tfePcapFP = NULL;
}
void PCapBackend::transmit(
const int txlength, /* Frame length */
uint8_t *txframe /* Pointer to the frame to be transmitted */
)
{
if (m_tfePcapFP)
{
tfe_arch_transmit(m_tfePcapFP, txlength, txframe);
}
}
int PCapBackend::receive(const int size, uint8_t * rxframe)
{
if (m_tfePcapFP)
{
return tfe_arch_receive(m_tfePcapFP, size, rxframe);
}
else
{
return -1;
}
}
bool PCapBackend::isValid()
{
return m_tfePcapFP;
}
void PCapBackend::update(const ULONG /* nExecutedCycles */)
{
// nothing to do
}
void PCapBackend::getMACAddress(const uint32_t address, MACAddress & mac)
{
// this is only expected to be called for IP addresses on the same network
#ifdef _MSC_VER
const DWORD dwSourceAddress = INADDR_ANY;
ULONG len = sizeof(MACAddress::address);
SendARP(address, dwSourceAddress, mac.address, &len);
#endif
}
const std::string & PCapBackend::getInterfaceName()
{
return m_interfaceName;
}
int PCapBackend::tfe_enumadapter_open(void)
{
return tfe_arch_enumadapter_open();
}
int PCapBackend::tfe_enumadapter(std::string & name, std::string & description)
{
return tfe_arch_enumadapter(name, description);
}
int PCapBackend::tfe_enumadapter_close(void)
{
return tfe_arch_enumadapter_close();
}
const char * PCapBackend::tfe_lib_version(void)
{
return tfe_arch_lib_version();
}
void PCapBackend::SetRegistryInterface(UINT slot, const std::string& name)
{
std::string regSection = RegGetConfigSlotSection(slot);
RegSaveString(regSection.c_str(), REGVALUE_UTHERNET_INTERFACE, 1, name);
}
std::string PCapBackend::GetRegistryInterface(UINT slot)
{
char interfaceName[MAX_PATH];
std::string regSection = RegGetConfigSlotSection(slot);
RegLoadString(regSection.c_str(), REGVALUE_UTHERNET_INTERFACE, TRUE, interfaceName, sizeof(interfaceName), TEXT(""));
return interfaceName;
}
int PCapBackend::tfe_is_npcap_loaded()
{
return tfe_arch_is_npcap_loaded();
}