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Work on in-place testnet support.

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This commit is contained in:
Adam Ierymenko 2014-10-02 16:33:08 -07:00
parent 1109046782
commit 96fa3f7550
6 changed files with 625 additions and 0 deletions
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13
node/Constants.hpp
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@ -416,4 +416,17 @@
*/ */
#define ZT_IPC_TIMEOUT 600 #define ZT_IPC_TIMEOUT 600
/**
* A test pseudo-network-ID that can be joined
*
* Joining this network ID will result in a network with no IP addressing
* and default parameters. No network configuration master will be consulted
* and instead a static config will be used. This is used in built-in testnet
* scenarios and can also be used for external testing.
*
* This is an impossible real network ID since 0xff is a reserved address
* prefix.
*/
#define ZT_TEST_NETWORK_ID 0xffffffffffffffffULL
#endif #endif

141
testnet/Condition.hpp Normal file
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/*
* ZeroTier One - Global Peer to Peer Ethernet
* Copyright (C) 2012-2014 ZeroTier Networks LLC
*
* This program 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 3 of the License, or
* (at your option) any later version.
*
* This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
*
* --
*
* ZeroTier may be used and distributed under the terms of the GPLv3, which
* are available at: http://www.gnu.org/licenses/gpl-3.0.html
*
* If you would like to embed ZeroTier into a commercial application or
* redistribute it in a modified binary form, please contact ZeroTier Networks
* LLC. Start here: http://www.zerotier.com/
*/
#ifndef ZT_CONDITION_HPP
#define ZT_CONDITION_HPP
#include "../node/Constants.hpp"
#include "../node/NonCopyable.hpp"
#ifdef __WINDOWS__
#include <Windows.h>
#include <stdlib.h>
#include "../node/Utils.hpp"
namespace ZeroTier {
class Condition : NonCopyable
{
public:
Condition()
throw()
{
_sem = CreateSemaphore(NULL,0,1,NULL);
}
~Condition()
{
CloseHandle(_sem);
}
inline void wait() const
throw()
{
WaitForSingleObject(_sem,INFINITE);
}
inline void wait(unsigned long ms) const
throw()
{
WaitForSingleObject(_sem,(DWORD)ms);
}
inline void signal() const
throw()
{
ReleaseSemaphore(_sem,1,NULL);
}
private:
HANDLE _sem;
};
} // namespace ZeroTier
#else // !__WINDOWS__
#include <time.h>
#include <stdlib.h>
#include <pthread.h>
#include "../node/Utils.hpp"
namespace ZeroTier {
class Condition : NonCopyable
{
public:
Condition()
throw()
{
pthread_mutex_init(&_mh,(const pthread_mutexattr_t *)0);
pthread_cond_init(&_cond,(const pthread_condattr_t *)0);
}
~Condition()
{
pthread_cond_destroy(&_cond);
pthread_mutex_destroy(&_mh);
}
inline void wait() const
throw()
{
pthread_mutex_lock(const_cast <pthread_mutex_t *>(&_mh));
pthread_cond_wait(const_cast <pthread_cond_t *>(&_cond),const_cast <pthread_mutex_t *>(&_mh));
pthread_mutex_unlock(const_cast <pthread_mutex_t *>(&_mh));
}
inline void wait(unsigned long ms) const
throw()
{
uint64_t when = Utils::now() + (uint64_t)ms;
struct timespec ts;
ts.tv_sec = (unsigned long)(when / 1000);
ts.tv_nsec = (unsigned long)(when % 1000) * 1000000;
pthread_mutex_lock(const_cast <pthread_mutex_t *>(&_mh));
pthread_cond_timedwait(const_cast <pthread_cond_t *>(&_cond),const_cast <pthread_mutex_t *>(&_mh),&ts);
pthread_mutex_unlock(const_cast <pthread_mutex_t *>(&_mh));
}
inline void signal() const
throw()
{
pthread_cond_signal(const_cast <pthread_cond_t *>(&_cond));
}
private:
pthread_cond_t _cond;
pthread_mutex_t _mh;
};
} // namespace ZeroTier
#endif // !__WINDOWS__
#endif

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testnet/TestEthernetTap.cpp Normal file
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/*
* ZeroTier One - Global Peer to Peer Ethernet
* Copyright (C) 2011-2014 ZeroTier Networks LLC
*
* This program 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 3 of the License, or
* (at your option) any later version.
*
* This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
*
* --
*
* ZeroTier may be used and distributed under the terms of the GPLv3, which
* are available at: http://www.gnu.org/licenses/gpl-3.0.html
*
* If you would like to embed ZeroTier into a commercial application or
* redistribute it in a modified binary form, please contact ZeroTier Networks
* LLC. Start here: http://www.zerotier.com/
*/
#include "TestEthernetTap.hpp"
#include "TestEthernetTapFactory.hpp"
#include "../node/Utils.hpp"
namespace ZeroTier {
TestEthernetTap::TestEthernetTap(
TestEthernetTapFactory *parent,
const MAC &mac,
unsigned int mtu,
unsigned int metric,
uint64_t nwid,
const char *desiredDevice,
const char *friendlyName,
void (*handler)(void *,const MAC &,const MAC &,unsigned int,const Buffer<4096> &),
void *arg) :
EthernetTap("TestEthernetTap",mac,mtu,metric),
_parent(parent),
_handler(handler),
_arg(arg),
_enabled(true)
{
char tmp[64];
Utils::snprintf(tmp,sizeof(tmp),"%.16llx",(unsigned long long)nwid);
_dev = tmp;
_thread = Thread::start(this);
}
TestEthernetTap::~TestEthernetTap()
{
{
Mutex::Lock _l(_pq_m);
_pq.push(TestFrame()); // 0-length frame = exit
}
_pq_c.signal();
Thread::join(_thread);
}
void TestEthernetTap::setEnabled(bool en)
{
_enabled = en;
}
bool TestEthernetTap::enabled() const
{
return _enabled;
}
bool TestEthernetTap::addIP(const InetAddress &ip)
{
return true;
}
bool TestEthernetTap::removeIP(const InetAddress &ip)
{
return true;
}
std::set<InetAddress> TestEthernetTap::ips() const
{
return std::set<InetAddress>();
}
void TestEthernetTap::put(const MAC &from,const MAC &to,unsigned int etherType,const void *data,unsigned int len)
{
static Mutex printLock;
Mutex::Lock _l(printLock);
fprintf(stderr,"%s << %s %.4x %s"ZT_EOL_S,to.toString().c_str(),from.toString().c_str(),etherType,std::string((const char *)data,len).c_str());
}
std::string TestEthernetTap::deviceName() const
{
return _dev;
}
void TestEthernetTap::setFriendlyName(const char *friendlyName)
{
}
bool TestEthernetTap::updateMulticastGroups(std::set<MulticastGroup> &groups)
{
return false;
}
void TestEthernetTap::threadMain()
throw()
{
TestFrame tf;
for(;;) {
tf.len = 0;
{
Mutex::Lock _l(_pq_m);
if (!_pq.empty()) {
if (_pq.front().len == 0)
break;
memcpy(&tf,&(_pq.front()),sizeof(tf));
_pq.pop();
}
}
if ((tf.len > 0)&&(_enabled))
_handler(_arg,tf.from,tf.to,ZT_TEST_ETHERNET_ETHERTYPE,Buffer<4096>(tf.data,tf.len));
_pq_c.wait();
}
}
} // namespace ZeroTier

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testnet/TestEthernetTap.hpp Normal file
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/*
* ZeroTier One - Global Peer to Peer Ethernet
* Copyright (C) 2011-2014 ZeroTier Networks LLC
*
* This program 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 3 of the License, or
* (at your option) any later version.
*
* This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
*
* --
*
* ZeroTier may be used and distributed under the terms of the GPLv3, which
* are available at: http://www.gnu.org/licenses/gpl-3.0.html
*
* If you would like to embed ZeroTier into a commercial application or
* redistribute it in a modified binary form, please contact ZeroTier Networks
* LLC. Start here: http://www.zerotier.com/
*/
#ifndef ZT_TESTETHERNETTAP_HPP
#define ZT_TESTETHERNETTAP_HPP
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdexcept>
#include <queue>
#include <string>
#include "../node/AtomicCounter.hpp"
#include "../node/SharedPtr.hpp"
#include "../node/EthernetTap.hpp"
#include "../node/Thread.hpp"
#include "../node/Mutex.hpp"
#include "Condition.hpp"
// Ethernet frame type to use on fake testnet
#define ZT_TEST_ETHERNET_ETHERTYPE 0xdead
namespace ZeroTier {
class TestEthernetTapFactory;
class TestEthernetTap : public EthernetTap
{
friend class SharedPtr<TestEthernetTap>;
private:
struct TestFrame
{
TestFrame() : len(0) {}
TestFrame(const MAC &f,const MAC &t,const void *d,unsigned int l) :
from(f),
to(t),
len(l)
{
memcpy(data,d,l);
}
MAC from;
MAC to;
unsigned int len;
char data[4096];
};
public:
TestEthernetTap(
TestEthernetTapFactory *parent,
const MAC &mac,
unsigned int mtu,
unsigned int metric,
uint64_t nwid,
const char *desiredDevice,
const char *friendlyName,
void (*handler)(void *,const MAC &,const MAC &,unsigned int,const Buffer<4096> &),
void *arg);
virtual ~TestEthernetTap();
virtual void setEnabled(bool en);
virtual bool enabled() const;
virtual bool addIP(const InetAddress &ip);
virtual bool removeIP(const InetAddress &ip);
virtual std::set<InetAddress> ips() const;
virtual void put(const MAC &from,const MAC &to,unsigned int etherType,const void *data,unsigned int len);
virtual std::string deviceName() const;
virtual void setFriendlyName(const char *friendlyName);
virtual bool updateMulticastGroups(std::set<MulticastGroup> &groups);
void threadMain()
throw();
inline void sendFromHost(const MAC &from,const MAC &to,const void *data,unsigned int len)
{
if (!len)
return;
{
Mutex::Lock _l(_pq_m);
_pq.push(TestFrame(from,to,data,len));
}
_pq_c.signal();
}
private:
TestEthernetTapFactory *_parent;
void (*_handler)(void *,const MAC &,const MAC &,unsigned int,const Buffer<4096> &);
void *_arg;
Thread _thread;
std::string _dev;
volatile bool _enabled;
std::queue< TestFrame > _pq;
Mutex _pq_m;
Condition _pq_c;
AtomicCounter __refCount;
};
} // namespace ZeroTier
#endif

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testnet/TestEthernetTapFactory.cpp Normal file
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/*
* ZeroTier One - Global Peer to Peer Ethernet
* Copyright (C) 2011-2014 ZeroTier Networks LLC
*
* This program 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 3 of the License, or
* (at your option) any later version.
*
* This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
*
* --
*
* ZeroTier may be used and distributed under the terms of the GPLv3, which
* are available at: http://www.gnu.org/licenses/gpl-3.0.html
*
* If you would like to embed ZeroTier into a commercial application or
* redistribute it in a modified binary form, please contact ZeroTier Networks
* LLC. Start here: http://www.zerotier.com/
*/
#include "TestEthernetTapFactory.hpp"
#include "TestEthernetTap.hpp"
namespace ZeroTier {
TestEthernetTapFactory::TestEthernetTapFactory()
{
}
TestEthernetTapFactory::~TestEthernetTapFactory()
{
}
EthernetTap *TestEthernetTapFactory::open(
const MAC &mac,
unsigned int mtu,
unsigned int metric,
uint64_t nwid,
const char *desiredDevice,
const char *friendlyName,
void (*handler)(void *,const MAC &,const MAC &,unsigned int,const Buffer<4096> &),
void *arg)
{
SharedPtr<TestEthernetTap> tap(new TestEthernetTap(this,mac,mtu,metric,nwid,desiredDevice,friendlyName,handler,arg));
{
Mutex::Lock _l(_taps_m);
_taps.insert(tap);
}
{
Mutex::Lock _l(_tapsByDevice_m);
_tapsByDevice[tap->deviceName()] = tap;
}
{
Mutex::Lock _l(_tapsByMac_m);
_tapsByMac[mac] = tap;
}
return tap.ptr();
}
void TestEthernetTapFactory::close(EthernetTap *tap,bool destroyPersistentDevices)
{
if (!tap)
return;
SharedPtr<TestEthernetTap> tapp((TestEthernetTap *)tap);
{
Mutex::Lock _l(_taps_m);
_taps.erase(tapp);
}
{
Mutex::Lock _l(_tapsByDevice_m);
_tapsByDevice.erase(tapp->deviceName());
}
{
Mutex::Lock _l(_tapsByMac_m);
_tapsByMac.erase(tapp->mac());
}
}
} // namespace ZeroTier

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testnet/TestEthernetTapFactory.hpp Normal file
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/*
* ZeroTier One - Global Peer to Peer Ethernet
* Copyright (C) 2011-2014 ZeroTier Networks LLC
*
* This program 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 3 of the License, or
* (at your option) any later version.
*
* This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
*
* --
*
* ZeroTier may be used and distributed under the terms of the GPLv3, which
* are available at: http://www.gnu.org/licenses/gpl-3.0.html
*
* If you would like to embed ZeroTier into a commercial application or
* redistribute it in a modified binary form, please contact ZeroTier Networks
* LLC. Start here: http://www.zerotier.com/
*/
#ifndef ZT_TESTETHERNETTAPFACTORY_HPP
#define ZT_TESTETHERNETTAPFACTORY_HPP
#include <vector>
#include <string>
#include <set>
#include "../node/SharedPtr.hpp"
#include "../node/EthernetTapFactory.hpp"
#include "../node/Mutex.hpp"
#include "../node/MAC.hpp"
#include "../node/CMWC4096.hpp"
namespace ZeroTier {
class TestEthernetTap;
class TestEthernetTapFactory : public EthernetTapFactory
{
public:
TestEthernetTapFactory();
virtual ~TestEthernetTapFactory();
virtual EthernetTap *open(
const MAC &mac,
unsigned int mtu,
unsigned int metric,
uint64_t nwid,
const char *desiredDevice,
const char *friendlyName,
void (*handler)(void *,const MAC &,const MAC &,unsigned int,const Buffer<4096> &),
void *arg);
virtual void close(EthernetTap *tap,bool destroyPersistentDevices);
inline SharedPtr<TestEthernetTap> getByMac(const MAC &mac) const
{
Mutex::Lock _l(_tapsByMac_m);
std::map< MAC,SharedPtr<TestEthernetTap> >::const_iterator t(_tapsByMac.find(mac));
if (t == _tapsByMac.end())
return SharedPtr<TestEthernetTap>();
return t->second;
}
inline SharedPtr<TestEthernetTap> getByDevice(const std::string &dev) const
{
Mutex::Lock _l(_tapsByDevice_m);
std::map< std::string,SharedPtr<TestEthernetTap> >::const_iterator t(_tapsByDevice.find(dev));
if (t == _tapsByDevice.end())
return SharedPtr<TestEthernetTap>();
return t->second;
}
inline SharedPtr<TestEthernetTap> getFirst() const
{
Mutex::Lock _l(_taps_m);
if (_taps.empty())
return SharedPtr<TestEthernetTap>();
return *(_taps.begin());
}
inline SharedPtr<TestEthernetTap> getRandom() const
{
Mutex::Lock _l(_taps_m);
Mutex::Lock _l2(_prng_m);
if (_taps.empty())
return SharedPtr<TestEthernetTap>();
unsigned int x = (const_cast<CMWC4096 *>(&_prng))->next32() % (unsigned int)_taps.size();
unsigned int i = 0;
for(std::set< SharedPtr<TestEthernetTap> >::const_iterator t(_taps.begin());t!=_taps.end();++t) {
if (i++ == x)
return *t;
}
return SharedPtr<TestEthernetTap>(); // never reached
}
private:
std::set< SharedPtr<TestEthernetTap> > _taps;
Mutex _taps_m;
std::map<std::string,SharedPtr<TestEthernetTap> > _tapsByDevice;
Mutex _tapsByDevice_m;
std::map<MAC,SharedPtr<TestEthernetTap> > _tapsByMac;
Mutex _tapsByMac_m;
CMWC4096 _prng;
Mutex _prng_m;
};
} // namespace ZeroTier
#endif