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fix udp tunnels reload

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Signed-off-by: R4SAS <r4sas@i2pmail.org>
This commit is contained in:
R4SAS
2022-05-09 10:59:25 +03:00
parent 2cd3ebbdb3
commit 923eb9fdb3
4 changed files with 183 additions and 150 deletions
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24
libi2pd_client/ClientContext.cpp
View File

@@ -608,21 +608,29 @@ namespace client
if (type == I2P_TUNNELS_SECTION_TYPE_UDPCLIENT) {
// udp client
// TODO: hostnames
boost::asio::ip::udp::endpoint end(boost::asio::ip::address::from_string(address), port);
boost::asio::ip::udp::endpoint end (boost::asio::ip::address::from_string(address), port);
if (!localDestination)
localDestination = m_SharedLocalDestination;
bool gzip = section.second.get (I2P_CLIENT_TUNNEL_GZIP, true);
auto clientTunnel = std::make_shared<I2PUDPClientTunnel>(name, dest, end, localDestination, destinationPort, gzip);
auto clientTunnel = std::make_shared<I2PUDPClientTunnel> (name, dest, end, localDestination, destinationPort, gzip);
auto ins = m_ClientForwards.insert(std::make_pair(end, clientTunnel));
auto ins = m_ClientForwards.insert (std::make_pair (end, clientTunnel));
if (ins.second)
{
clientTunnel->Start();
clientTunnel->Start ();
numClientTunnels++;
}
else
{
// TODO: update
if (ins.first->second->GetLocalDestination () != clientTunnel->GetLocalDestination ())
{
LogPrint (eLogInfo, "Clients: I2P UDP client tunnel destination updated");
ins.first->second->Stop ();
ins.first->second->SetLocalDestination (clientTunnel->GetLocalDestination ());
ins.first->second->Start ();
}
ins.first->second->isUpdated = true;
LogPrint(eLogError, "Clients: I2P Client forward for endpoint ", end, " already exists");
}
@@ -976,11 +984,11 @@ namespace client
}
}
/* // TODO: Write correct UDP tunnels stop
// TODO: Write correct UDP tunnels stop
for (auto it = m_ClientForwards.begin (); it != m_ClientForwards.end ();)
{
if(clean && !it->second->isUpdated) {
it->second = nullptr;
it->second->Stop ();
it = m_ClientForwards.erase(it);
} else {
it->second->isUpdated = false;
@@ -991,13 +999,13 @@ namespace client
for (auto it = m_ServerForwards.begin (); it != m_ServerForwards.end ();)
{
if(clean && !it->second->isUpdated) {
it->second = nullptr;
it->second->Stop ();
it = m_ServerForwards.erase(it);
} else {
it->second->isUpdated = false;
it++;
}
} */
}
}
}
}

4
libi2pd_client/ClientContext.h
View File

@@ -142,8 +142,8 @@ namespace client
i2p::proxy::HTTPProxy * m_HttpProxy;
i2p::proxy::SOCKSProxy * m_SocksProxy;
std::map<boost::asio::ip::tcp::endpoint, std::shared_ptr<I2PService> > m_ClientTunnels; // local endpoint->tunnel
std::map<std::pair<i2p::data::IdentHash, int>, std::shared_ptr<I2PServerTunnel> > m_ServerTunnels; // <destination,port>->tunnel
std::map<boost::asio::ip::tcp::endpoint, std::shared_ptr<I2PService> > m_ClientTunnels; // local endpoint -> tunnel
std::map<std::pair<i2p::data::IdentHash, int>, std::shared_ptr<I2PServerTunnel> > m_ServerTunnels; // <destination,port> -> tunnel
std::mutex m_ForwardsMutex;
std::map<boost::asio::ip::udp::endpoint, std::shared_ptr<I2PUDPClientTunnel> > m_ClientForwards; // local endpoint -> udp tunnel

248
libi2pd_client/I2PTunnel.cpp
View File

@@ -583,7 +583,7 @@ namespace client
{
if (m_KeepAliveTimer)
{
m_KeepAliveTimer->expires_from_now (boost::posix_time::seconds(m_KeepAliveInterval));
m_KeepAliveTimer->expires_from_now (boost::posix_time::seconds (m_KeepAliveInterval));
m_KeepAliveTimer->async_wait (std::bind (&I2PClientTunnel::HandleKeepAliveTimer,
this, std::placeholders::_1));
}
@@ -796,7 +796,8 @@ namespace client
}
}
void I2PUDPServerTunnel::ExpireStale(const uint64_t delta) {
void I2PUDPServerTunnel::ExpireStale(const uint64_t delta)
{
std::lock_guard<std::mutex> lock(m_SessionsMutex);
uint64_t now = i2p::util::GetMillisecondsSinceEpoch();
auto itr = m_Sessions.begin();
@@ -808,7 +809,8 @@ namespace client
}
}
void I2PUDPClientTunnel::ExpireStale(const uint64_t delta) {
void I2PUDPClientTunnel::ExpireStale(const uint64_t delta)
{
std::lock_guard<std::mutex> lock(m_SessionsMutex);
uint64_t now = i2p::util::GetMillisecondsSinceEpoch();
std::vector<uint16_t> removePorts;
@@ -864,7 +866,8 @@ namespace client
Receive();
}
void UDPSession::Receive() {
void UDPSession::Receive()
{
LogPrint(eLogDebug, "UDPSession: Receive");
IPSocket.async_receive_from(boost::asio::buffer(m_Buffer, I2P_UDP_MAX_MTU),
FromEndpoint, std::bind(&UDPSession::HandleReceived, this, std::placeholders::_1, std::placeholders::_2));
@@ -901,230 +904,239 @@ namespace client
LogPrint(eLogError, "UDPSession: ", ecode.message());
}
I2PUDPServerTunnel::I2PUDPServerTunnel(const std::string & name, std::shared_ptr<i2p::client::ClientDestination> localDestination,
I2PUDPServerTunnel::I2PUDPServerTunnel (const std::string & name, std::shared_ptr<i2p::client::ClientDestination> localDestination,
boost::asio::ip::address localAddress, boost::asio::ip::udp::endpoint forwardTo, uint16_t port, bool gzip) :
m_IsUniqueLocal(true),
m_Name(name),
m_LocalAddress(localAddress),
m_RemoteEndpoint(forwardTo)
m_IsUniqueLocal (true), m_Name (name), m_LocalAddress (localAddress), m_LocalDest (localDestination), m_RemoteEndpoint (forwardTo), m_Gzip (gzip)
{
m_LocalDest = localDestination;
m_LocalDest->Start();
auto dgram = m_LocalDest->CreateDatagramDestination(gzip);
dgram->SetReceiver(std::bind(&I2PUDPServerTunnel::HandleRecvFromI2P, this, std::placeholders::_1, std::placeholders::_2, std::placeholders::_3, std::placeholders::_4, std::placeholders::_5));
dgram->SetRawReceiver(std::bind(&I2PUDPServerTunnel::HandleRecvFromI2PRaw, this, std::placeholders::_1, std::placeholders::_2, std::placeholders::_3, std::placeholders::_4));
}
I2PUDPServerTunnel::~I2PUDPServerTunnel()
I2PUDPServerTunnel::~I2PUDPServerTunnel ()
{
auto dgram = m_LocalDest->GetDatagramDestination();
if (dgram) dgram->ResetReceiver();
LogPrint(eLogInfo, "UDPServer: Done");
Stop ();
}
void I2PUDPServerTunnel::Start()
void I2PUDPServerTunnel::Start ()
{
m_LocalDest->Start();
m_LocalDest->Start ();
auto dgram = m_LocalDest->CreateDatagramDestination (m_Gzip);
dgram->SetReceiver (std::bind (&I2PUDPServerTunnel::HandleRecvFromI2P, this, std::placeholders::_1, std::placeholders::_2, std::placeholders::_3, std::placeholders::_4, std::placeholders::_5));
dgram->SetRawReceiver (std::bind (&I2PUDPServerTunnel::HandleRecvFromI2PRaw, this, std::placeholders::_1, std::placeholders::_2, std::placeholders::_3, std::placeholders::_4));
}
std::vector<std::shared_ptr<DatagramSessionInfo> > I2PUDPServerTunnel::GetSessions()
void I2PUDPServerTunnel::Stop ()
{
auto dgram = m_LocalDest->GetDatagramDestination ();
if (dgram) dgram->ResetReceiver ();
}
std::vector<std::shared_ptr<DatagramSessionInfo> > I2PUDPServerTunnel::GetSessions ()
{
std::vector<std::shared_ptr<DatagramSessionInfo> > sessions;
std::lock_guard<std::mutex> lock(m_SessionsMutex);
std::lock_guard<std::mutex> lock (m_SessionsMutex);
for ( UDPSessionPtr s : m_Sessions )
for (UDPSessionPtr s: m_Sessions)
{
if (!s->m_Destination) continue;
auto info = s->m_Destination->GetInfoForRemote(s->Identity);
if(!info) continue;
auto info = s->m_Destination->GetInfoForRemote (s->Identity);
if (!info) continue;
auto sinfo = std::make_shared<DatagramSessionInfo>();
auto sinfo = std::make_shared<DatagramSessionInfo> ();
sinfo->Name = m_Name;
sinfo->LocalIdent = std::make_shared<i2p::data::IdentHash>(m_LocalDest->GetIdentHash().data());
sinfo->RemoteIdent = std::make_shared<i2p::data::IdentHash>(s->Identity.data());
sinfo->LocalIdent = std::make_shared<i2p::data::IdentHash> (m_LocalDest->GetIdentHash ().data ());
sinfo->RemoteIdent = std::make_shared<i2p::data::IdentHash> (s->Identity.data ());
sinfo->CurrentIBGW = info->IBGW;
sinfo->CurrentOBEP = info->OBEP;
sessions.push_back(sinfo);
sessions.push_back (sinfo);
}
return sessions;
}
I2PUDPClientTunnel::I2PUDPClientTunnel(const std::string & name, const std::string &remoteDest,
I2PUDPClientTunnel::I2PUDPClientTunnel (const std::string & name, const std::string &remoteDest,
boost::asio::ip::udp::endpoint localEndpoint,
std::shared_ptr<i2p::client::ClientDestination> localDestination,
uint16_t remotePort, bool gzip) :
m_Name(name),
m_RemoteDest(remoteDest),
m_LocalDest(localDestination),
m_LocalEndpoint(localEndpoint),
m_RemoteIdent(nullptr),
m_ResolveThread(nullptr),
m_LocalSocket(localDestination->GetService(), localEndpoint),
RemotePort(remotePort), m_LastPort (0),
m_cancel_resolve(false)
m_Name (name), m_RemoteDest (remoteDest), m_LocalDest (localDestination), m_LocalEndpoint (localEndpoint),
m_RemoteIdent (nullptr), m_ResolveThread (nullptr), m_LocalSocket (nullptr), RemotePort (remotePort),
m_LastPort (0), m_cancel_resolve (false), m_Gzip (gzip)
{
m_LocalSocket.set_option (boost::asio::socket_base::receive_buffer_size (I2P_UDP_MAX_MTU));
m_LocalSocket.set_option (boost::asio::socket_base::reuse_address (true));
}
auto dgram = m_LocalDest->CreateDatagramDestination(gzip);
dgram->SetReceiver(std::bind(&I2PUDPClientTunnel::HandleRecvFromI2P, this,
I2PUDPClientTunnel::~I2PUDPClientTunnel ()
{
Stop ();
}
void I2PUDPClientTunnel::Start ()
{
// Reset flag in case of tunnel reload
if (m_cancel_resolve) m_cancel_resolve = false;
m_LocalSocket.reset (new boost::asio::ip::udp::socket (m_LocalDest->GetService (), m_LocalEndpoint));
m_LocalSocket->set_option (boost::asio::socket_base::receive_buffer_size (I2P_UDP_MAX_MTU));
m_LocalSocket->set_option (boost::asio::socket_base::reuse_address (true));
auto dgram = m_LocalDest->CreateDatagramDestination (m_Gzip);
dgram->SetReceiver (std::bind (&I2PUDPClientTunnel::HandleRecvFromI2P, this,
std::placeholders::_1, std::placeholders::_2,
std::placeholders::_3, std::placeholders::_4,
std::placeholders::_5));
dgram->SetRawReceiver(std::bind(&I2PUDPClientTunnel::HandleRecvFromI2PRaw, this,
dgram->SetRawReceiver (std::bind (&I2PUDPClientTunnel::HandleRecvFromI2PRaw, this,
std::placeholders::_1, std::placeholders::_2, std::placeholders::_3, std::placeholders::_4));
}
void I2PUDPClientTunnel::Start() {
m_LocalDest->Start();
m_LocalDest->Start ();
if (m_ResolveThread == nullptr)
m_ResolveThread = new std::thread(std::bind(&I2PUDPClientTunnel::TryResolving, this));
RecvFromLocal();
m_ResolveThread = new std::thread (std::bind (&I2PUDPClientTunnel::TryResolving, this));
RecvFromLocal ();
}
void I2PUDPClientTunnel::RecvFromLocal()
void I2PUDPClientTunnel::Stop ()
{
m_LocalSocket.async_receive_from(boost::asio::buffer(m_RecvBuff, I2P_UDP_MAX_MTU),
m_RecvEndpoint, std::bind(&I2PUDPClientTunnel::HandleRecvFromLocal, this, std::placeholders::_1, std::placeholders::_2));
auto dgram = m_LocalDest->GetDatagramDestination ();
if (dgram) dgram->ResetReceiver ();
m_cancel_resolve = true;
m_Sessions.clear();
if(m_LocalSocket && m_LocalSocket->is_open ())
m_LocalSocket->close ();
if(m_ResolveThread)
{
m_ResolveThread->join ();
delete m_ResolveThread;
m_ResolveThread = nullptr;
}
if (m_RemoteIdent)
{
delete m_RemoteIdent;
m_RemoteIdent = nullptr;
}
}
void I2PUDPClientTunnel::HandleRecvFromLocal(const boost::system::error_code & ec, std::size_t transferred)
void I2PUDPClientTunnel::RecvFromLocal ()
{
if(m_cancel_resolve) {
LogPrint(eLogDebug, "UDP Client: Ignoring incomming data: stopping");
m_LocalSocket->async_receive_from (boost::asio::buffer (m_RecvBuff, I2P_UDP_MAX_MTU),
m_RecvEndpoint, std::bind (&I2PUDPClientTunnel::HandleRecvFromLocal, this, std::placeholders::_1, std::placeholders::_2));
}
void I2PUDPClientTunnel::HandleRecvFromLocal (const boost::system::error_code & ec, std::size_t transferred)
{
if (m_cancel_resolve) {
LogPrint (eLogDebug, "UDP Client: Ignoring incomming data: stopping");
return;
}
if(ec) {
LogPrint(eLogError, "UDP Client: Reading from socket error: ", ec.message(), ". Restarting listener...");
RecvFromLocal(); // Restart listener and continue work
if (ec) {
LogPrint (eLogError, "UDP Client: Reading from socket error: ", ec.message (), ". Restarting listener...");
RecvFromLocal (); // Restart listener and continue work
return;
}
if(!m_RemoteIdent) {
LogPrint(eLogWarning, "UDP Client: Remote endpoint not resolved yet");
RecvFromLocal();
if (!m_RemoteIdent) {
LogPrint (eLogWarning, "UDP Client: Remote endpoint not resolved yet");
RecvFromLocal ();
return; // drop, remote not resolved
}
auto remotePort = m_RecvEndpoint.port();
auto remotePort = m_RecvEndpoint.port ();
if (!m_LastPort || m_LastPort != remotePort)
{
auto itr = m_Sessions.find(remotePort);
if (itr != m_Sessions.end())
auto itr = m_Sessions.find (remotePort);
if (itr != m_Sessions.end ())
m_LastSession = itr->second;
else
{
m_LastSession = std::make_shared<UDPConvo>(boost::asio::ip::udp::endpoint(m_RecvEndpoint), 0);
m_LastSession = std::make_shared<UDPConvo> (boost::asio::ip::udp::endpoint (m_RecvEndpoint), 0);
m_Sessions.emplace (remotePort, m_LastSession);
}
m_LastPort = remotePort;
}
// send off to remote i2p destination
auto ts = i2p::util::GetMillisecondsSinceEpoch();
LogPrint(eLogDebug, "UDP Client: Send ", transferred, " to ", m_RemoteIdent->ToBase32(), ":", RemotePort);
auto session = m_LocalDest->GetDatagramDestination()->GetSession (*m_RemoteIdent);
auto ts = i2p::util::GetMillisecondsSinceEpoch ();
LogPrint (eLogDebug, "UDP Client: Send ", transferred, " to ", m_RemoteIdent->ToBase32 (), ":", RemotePort);
auto session = m_LocalDest->GetDatagramDestination ()->GetSession (*m_RemoteIdent);
if (ts > m_LastSession->second + I2P_UDP_REPLIABLE_DATAGRAM_INTERVAL)
m_LocalDest->GetDatagramDestination()->SendDatagram (session, m_RecvBuff, transferred, remotePort, RemotePort);
m_LocalDest->GetDatagramDestination ()->SendDatagram (session, m_RecvBuff, transferred, remotePort, RemotePort);
else
m_LocalDest->GetDatagramDestination()->SendRawDatagram (session, m_RecvBuff, transferred, remotePort, RemotePort);
m_LocalDest->GetDatagramDestination ()->SendRawDatagram (session, m_RecvBuff, transferred, remotePort, RemotePort);
size_t numPackets = 0;
while (numPackets < i2p::datagram::DATAGRAM_SEND_QUEUE_MAX_SIZE)
{
boost::system::error_code ec;
size_t moreBytes = m_LocalSocket.available(ec);
size_t moreBytes = m_LocalSocket->available (ec);
if (ec || !moreBytes) break;
transferred = m_LocalSocket.receive_from (boost::asio::buffer (m_RecvBuff, I2P_UDP_MAX_MTU), m_RecvEndpoint, 0, ec);
remotePort = m_RecvEndpoint.port();
transferred = m_LocalSocket->receive_from (boost::asio::buffer (m_RecvBuff, I2P_UDP_MAX_MTU), m_RecvEndpoint, 0, ec);
remotePort = m_RecvEndpoint.port ();
// TODO: check remotePort
m_LocalDest->GetDatagramDestination()->SendRawDatagram (session, m_RecvBuff, transferred, remotePort, RemotePort);
m_LocalDest->GetDatagramDestination ()->SendRawDatagram (session, m_RecvBuff, transferred, remotePort, RemotePort);
numPackets++;
}
if (numPackets)
LogPrint(eLogDebug, "UDP Client: Sent ", numPackets, " more packets to ", m_RemoteIdent->ToBase32());
m_LocalDest->GetDatagramDestination()->FlushSendQueue (session);
LogPrint (eLogDebug, "UDP Client: Sent ", numPackets, " more packets to ", m_RemoteIdent->ToBase32 ());
m_LocalDest->GetDatagramDestination ()->FlushSendQueue (session);
// mark convo as active
if (m_LastSession)
m_LastSession->second = ts;
RecvFromLocal();
RecvFromLocal ();
}
std::vector<std::shared_ptr<DatagramSessionInfo> > I2PUDPClientTunnel::GetSessions()
std::vector<std::shared_ptr<DatagramSessionInfo> > I2PUDPClientTunnel::GetSessions ()
{
// TODO: implement
std::vector<std::shared_ptr<DatagramSessionInfo> > infos;
return infos;
}
void I2PUDPClientTunnel::TryResolving() {
i2p::util::SetThreadName("UDP Resolver");
LogPrint(eLogInfo, "UDP Tunnel: Trying to resolve ", m_RemoteDest);
void I2PUDPClientTunnel::TryResolving ()
{
i2p::util::SetThreadName ("UDP Resolver");
LogPrint (eLogInfo, "UDP Tunnel: Trying to resolve ", m_RemoteDest);
std::shared_ptr<const Address> addr;
while(!(addr = context.GetAddressBook().GetAddress(m_RemoteDest)) && !m_cancel_resolve)
while (!(addr = context.GetAddressBook().GetAddress(m_RemoteDest)) && !m_cancel_resolve)
{
LogPrint(eLogWarning, "UDP Tunnel: Failed to lookup ", m_RemoteDest);
std::this_thread::sleep_for(std::chrono::seconds(1));
LogPrint (eLogWarning, "UDP Tunnel: Failed to lookup ", m_RemoteDest);
std::this_thread::sleep_for (std::chrono::seconds (1));
}
if(m_cancel_resolve)
if (m_cancel_resolve)
{
LogPrint(eLogError, "UDP Tunnel: Lookup of ", m_RemoteDest, " was cancelled");
return;
}
if (!addr || !addr->IsIdentHash ())
{
LogPrint(eLogError, "UDP Tunnel: ", m_RemoteDest, " not found");
LogPrint (eLogError, "UDP Tunnel: ", m_RemoteDest, " not found");
return;
}
m_RemoteIdent = new i2p::data::IdentHash;
*m_RemoteIdent = addr->identHash;
LogPrint(eLogInfo, "UDP Tunnel: Resolved ", m_RemoteDest, " to ", m_RemoteIdent->ToBase32());
LogPrint(eLogInfo, "UDP Tunnel: Resolved ", m_RemoteDest, " to ", m_RemoteIdent->ToBase32 ());
}
void I2PUDPClientTunnel::HandleRecvFromI2P(const i2p::data::IdentityEx& from, uint16_t fromPort, uint16_t toPort, const uint8_t * buf, size_t len)
void I2PUDPClientTunnel::HandleRecvFromI2P (const i2p::data::IdentityEx& from, uint16_t fromPort, uint16_t toPort, const uint8_t * buf, size_t len)
{
if(m_RemoteIdent && from.GetIdentHash() == *m_RemoteIdent)
if (m_RemoteIdent && from.GetIdentHash() == *m_RemoteIdent)
HandleRecvFromI2PRaw (fromPort, toPort, buf, len);
else
LogPrint(eLogWarning, "UDP Client: Unwarranted traffic from ", from.GetIdentHash().ToBase32());
LogPrint(eLogWarning, "UDP Client: Unwarranted traffic from ", from.GetIdentHash().ToBase32 ());
}
void I2PUDPClientTunnel::HandleRecvFromI2PRaw(uint16_t fromPort, uint16_t toPort, const uint8_t * buf, size_t len)
void I2PUDPClientTunnel::HandleRecvFromI2PRaw (uint16_t fromPort, uint16_t toPort, const uint8_t * buf, size_t len)
{
auto itr = m_Sessions.find(toPort);
auto itr = m_Sessions.find (toPort);
// found convo ?
if(itr != m_Sessions.end())
if (itr != m_Sessions.end ())
{
// found convo
if (len > 0)
{
LogPrint(eLogDebug, "UDP Client: Got ", len, "B from ", m_RemoteIdent ? m_RemoteIdent->ToBase32() : "");
m_LocalSocket.send_to(boost::asio::buffer(buf, len), itr->second->first);
LogPrint (eLogDebug, "UDP Client: Got ", len, "B from ", m_RemoteIdent ? m_RemoteIdent->ToBase32 () : "");
m_LocalSocket->send_to (boost::asio::buffer (buf, len), itr->second->first);
// mark convo as active
itr->second->second = i2p::util::GetMillisecondsSinceEpoch();
itr->second->second = i2p::util::GetMillisecondsSinceEpoch ();
}
}
else
LogPrint(eLogWarning, "UDP Client: Not tracking udp session using port ", (int) toPort);
}
I2PUDPClientTunnel::~I2PUDPClientTunnel()
{
auto dgram = m_LocalDest->GetDatagramDestination();
if (dgram) dgram->ResetReceiver();
m_cancel_resolve = true;
m_Sessions.clear();
if(m_LocalSocket.is_open())
m_LocalSocket.close();
if(m_ResolveThread)
{
m_ResolveThread->join();
delete m_ResolveThread;
m_ResolveThread = nullptr;
}
if (m_RemoteIdent) delete m_RemoteIdent;
LogPrint (eLogWarning, "UDP Client: Not tracking udp session using port ", (int) toPort);
}
}
}

57
libi2pd_client/I2PTunnel.h
View File

@@ -230,25 +230,27 @@ namespace client
{
public:
I2PUDPServerTunnel(const std::string & name,
I2PUDPServerTunnel (const std::string & name,
std::shared_ptr<i2p::client::ClientDestination> localDestination,
boost::asio::ip::address localAddress,
boost::asio::ip::udp::endpoint forwardTo, uint16_t port, bool gzip);
~I2PUDPServerTunnel();
~I2PUDPServerTunnel ();
/** expire stale udp conversations */
void ExpireStale(const uint64_t delta=I2P_UDP_SESSION_TIMEOUT);
void Start();
const char * GetName() const { return m_Name.c_str(); }
std::vector<std::shared_ptr<DatagramSessionInfo> > GetSessions();
void ExpireStale (const uint64_t delta=I2P_UDP_SESSION_TIMEOUT);
void Start ();
void Stop ();
const char * GetName () const { return m_Name.c_str(); }
std::vector<std::shared_ptr<DatagramSessionInfo> > GetSessions ();
std::shared_ptr<ClientDestination> GetLocalDestination () const { return m_LocalDest; }
void SetUniqueLocal(bool isUniqueLocal = true) { m_IsUniqueLocal = isUniqueLocal; }
void SetUniqueLocal (bool isUniqueLocal = true) { m_IsUniqueLocal = isUniqueLocal; }
private:
void HandleRecvFromI2P(const i2p::data::IdentityEx& from, uint16_t fromPort, uint16_t toPort, const uint8_t * buf, size_t len);
void HandleRecvFromI2P (const i2p::data::IdentityEx& from, uint16_t fromPort, uint16_t toPort, const uint8_t * buf, size_t len);
void HandleRecvFromI2PRaw (uint16_t fromPort, uint16_t toPort, const uint8_t * buf, size_t len);
UDPSessionPtr ObtainUDPSession(const i2p::data::IdentityEx& from, uint16_t localPort, uint16_t remotePort);
UDPSessionPtr ObtainUDPSession (const i2p::data::IdentityEx& from, uint16_t localPort, uint16_t remotePort);
private:
@@ -260,6 +262,7 @@ namespace client
std::vector<UDPSessionPtr> m_Sessions;
std::shared_ptr<i2p::client::ClientDestination> m_LocalDest;
UDPSessionPtr m_LastSession;
bool m_Gzip;
public:
@@ -270,27 +273,36 @@ namespace client
{
public:
I2PUDPClientTunnel(const std::string & name, const std::string &remoteDest,
I2PUDPClientTunnel (const std::string & name, const std::string &remoteDest,
boost::asio::ip::udp::endpoint localEndpoint, std::shared_ptr<i2p::client::ClientDestination> localDestination,
uint16_t remotePort, bool gzip);
~I2PUDPClientTunnel();
void Start();
const char * GetName() const { return m_Name.c_str(); }
std::vector<std::shared_ptr<DatagramSessionInfo> > GetSessions();
~I2PUDPClientTunnel ();
bool IsLocalDestination(const i2p::data::IdentHash & destination) const { return destination == m_LocalDest->GetIdentHash(); }
void Start ();
void Stop ();
const char * GetName () const { return m_Name.c_str(); }
std::vector<std::shared_ptr<DatagramSessionInfo> > GetSessions ();
bool IsLocalDestination (const i2p::data::IdentHash & destination) const { return destination == m_LocalDest->GetIdentHash(); }
std::shared_ptr<ClientDestination> GetLocalDestination () const { return m_LocalDest; }
void ExpireStale(const uint64_t delta=I2P_UDP_SESSION_TIMEOUT);
inline void SetLocalDestination (std::shared_ptr<ClientDestination> dest)
{
if (m_LocalDest) m_LocalDest->Release ();
if (dest) dest->Acquire ();
m_LocalDest = dest;
}
void ExpireStale (const uint64_t delta=I2P_UDP_SESSION_TIMEOUT);
private:
typedef std::pair<boost::asio::ip::udp::endpoint, uint64_t> UDPConvo;
void RecvFromLocal();
void HandleRecvFromLocal(const boost::system::error_code & e, std::size_t transferred);
void HandleRecvFromI2P(const i2p::data::IdentityEx& from, uint16_t fromPort, uint16_t toPort, const uint8_t * buf, size_t len);
void HandleRecvFromI2PRaw(uint16_t fromPort, uint16_t toPort, const uint8_t * buf, size_t len);
void TryResolving();
void RecvFromLocal ();
void HandleRecvFromLocal (const boost::system::error_code & e, std::size_t transferred);
void HandleRecvFromI2P (const i2p::data::IdentityEx& from, uint16_t fromPort, uint16_t toPort, const uint8_t * buf, size_t len);
void HandleRecvFromI2PRaw (uint16_t fromPort, uint16_t toPort, const uint8_t * buf, size_t len);
void TryResolving ();
private:
@@ -302,11 +314,12 @@ namespace client
const boost::asio::ip::udp::endpoint m_LocalEndpoint;
i2p::data::IdentHash * m_RemoteIdent;
std::thread * m_ResolveThread;
boost::asio::ip::udp::socket m_LocalSocket;
std::unique_ptr<boost::asio::ip::udp::socket> m_LocalSocket;
boost::asio::ip::udp::endpoint m_RecvEndpoint;
uint8_t m_RecvBuff[I2P_UDP_MAX_MTU];
uint16_t RemotePort, m_LastPort;
bool m_cancel_resolve;
bool m_Gzip;
std::shared_ptr<UDPConvo> m_LastSession;
public: