ZeroTierOne/osdep/EthernetTap.cpp
2019-09-21 18:22:25 -07:00

143 lines
3.7 KiB
C++

/*
* Copyright (c)2019 ZeroTier, Inc.
*
* Use of this software is governed by the Business Source License included
* in the LICENSE.TXT file in the project's root directory.
*
* Change Date: 2023-01-01
*
* On the date above, in accordance with the Business Source License, use
* of this software will be governed by version 2.0 of the Apache License.
*/
/****/
#include "EthernetTap.hpp"
#include "OSUtils.hpp"
#include <stdlib.h>
#include <string.h>
#ifdef ZT_SDK
#include "../controller/EmbeddedNetworkController.hpp"
#include "../node/Node.hpp"
#include "../include/VirtualTap.hpp"
#else
#ifdef __APPLE__
#include <sys/sysctl.h>
#include "MacEthernetTap.hpp"
#include "MacKextEthernetTap.hpp"
#endif // __APPLE__
#ifdef __LINUX__
#include "LinuxEthernetTap.hpp"
#endif // __LINUX__
#ifdef __WINDOWS__
#include "WindowsEthernetTap.hpp"
#endif // __WINDOWS__
#ifdef __FreeBSD__
#include "BSDEthernetTap.hpp"
#endif // __FreeBSD__
#ifdef __NetBSD__
#include "NetBSDEthernetTap.hpp"
#endif // __NetBSD__
#ifdef __OpenBSD__
#include "BSDEthernetTap.hpp"
#endif // __OpenBSD__
#endif
namespace ZeroTier {
std::shared_ptr<EthernetTap> EthernetTap::newInstance(
const char *tapDeviceType, // OS-specific, NULL for default
const char *homePath,
const MAC &mac,
unsigned int mtu,
unsigned int metric,
uint64_t nwid,
const char *friendlyName,
void (*handler)(void *,void *,uint64_t,const MAC &,const MAC &,unsigned int,unsigned int,const void *,unsigned int),
void *arg)
{
#ifdef ZT_SDK
return std::shared_ptr<EthernetTap>(new VirtualTap(homePath,mac,mtu,metric,nwid,friendlyName,handler,arg));
#else // not ZT_SDK
#ifdef __APPLE__
char osrelease[256];
size_t size = sizeof(osrelease);
if (sysctlbyname("kern.osrelease",osrelease,&size,nullptr,0) == 0) {
char *dotAt = strchr(osrelease,'.');
if (dotAt) {
*dotAt = (char)0;
// The "feth" virtual Ethernet device type appeared in Darwin 17.x.x. Older versions
// (Sierra and earlier) must use the a kernel extension.
if (strtol(osrelease,(char **)0,10) < 17) {
return std::shared_ptr<EthernetTap>(new MacKextEthernetTap(homePath,mac,mtu,metric,nwid,friendlyName,handler,arg));
} else {
return std::shared_ptr<EthernetTap>(new MacEthernetTap(homePath,mac,mtu,metric,nwid,friendlyName,handler,arg));
}
}
}
#endif // __APPLE__
#ifdef __LINUX__
return std::shared_ptr<EthernetTap>(new LinuxEthernetTap(homePath,mac,mtu,metric,nwid,friendlyName,handler,arg));
#endif // __LINUX__
#ifdef __WINDOWS__
return std::shared_ptr<EthernetTap>(new WindowsEthernetTap(homePath,mac,mtu,metric,nwid,friendlyName,handler,arg));
#endif // __WINDOWS__
#ifdef __FreeBSD__
return std::shared_ptr<EthernetTap>(new BSDEthernetTap(homePath,mac,mtu,metric,nwid,friendlyName,handler,arg));
#endif // __FreeBSD__
#ifdef __NetBSD__
return std::shared_ptr<EthernetTap>(new NetBSDEthernetTap(homePath,mac,mtu,metric,nwid,friendlyName,handler,arg));
#endif // __NetBSD__
#ifdef __OpenBSD__
return std::shared_ptr<EthernetTap>(new BSDEthernetTap(homePath,mac,mtu,metric,nwid,friendlyName,handler,arg));
#endif // __OpenBSD__
#endif // ZT_SDK?
return std::shared_ptr<EthernetTap>();
}
EthernetTap::EthernetTap() {}
EthernetTap::~EthernetTap() {}
bool EthernetTap::addIps(std::vector<InetAddress> ips)
{
for(std::vector<InetAddress>::const_iterator i(ips.begin());i!=ips.end();++i) {
if (!addIp(*i))
return false;
}
return true;
}
std::string EthernetTap::routingDeviceName() const
{
#ifdef __WINDOWS__
char tapdev[64];
OSUtils::ztsnprintf(tapdev,sizeof(tapdev),"%.16llx",(unsigned long long)(((const WindowsEthernetTap *)(this))->luid().Value));
return std::string(tapdev);
#else
return this->deviceName();
#endif
}
} // namespace ZeroTier