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separated sockets for ipv4 and ipv6

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This commit is contained in:
orignal 2022-03-17 18:45:14 -04:00
parent 3643a46a0c
commit ab9901525b
2 changed files with 35 additions and 28 deletions
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54
libi2pd/SSU2.cpp
View File

@ -352,7 +352,7 @@ namespace transport
}
SSU2Server::SSU2Server ():
RunnableServiceWithWork ("SSU2"), m_Socket (GetService ())
RunnableServiceWithWork ("SSU2"), m_Socket (GetService ()), m_SocketV6 (GetService ())
{
}
@ -367,7 +367,7 @@ namespace transport
if (!address) continue;
if (address->transportStyle == i2p::data::RouterInfo::eTransportSSU2)
{
auto port = address->port;
auto port = address->port;
if (!port)
{
uint16_t ssu2Port; i2p::config::GetOption ("ssu2.port", ssu2Port);
@ -380,12 +380,13 @@ namespace transport
}
if (port)
{
OpenSocket (port);
Receive ();
if (address->IsV4 ())
Receive (OpenSocket (boost::asio::ip::udp::endpoint (boost::asio::ip::udp::v4(), port)));
if (address->IsV6 ())
Receive (OpenSocket (boost::asio::ip::udp::endpoint (boost::asio::ip::udp::v6(), port)));
}
else
LogPrint (eLogError, "SSU2: Can't start server because port not specified ");
break;
LogPrint (eLogError, "SSU2: Can't start server because port not specified");
}
}
}
@ -396,38 +397,43 @@ namespace transport
StopIOService ();
}
void SSU2Server::OpenSocket (int port)
boost::asio::ip::udp::socket& SSU2Server::OpenSocket (const boost::asio::ip::udp::endpoint& localEndpoint)
{
boost::asio::ip::udp::socket& socket = localEndpoint.address ().is_v6 () ? m_SocketV6 : m_Socket;
try
{
m_Socket.open (boost::asio::ip::udp::v6());
m_Socket.set_option (boost::asio::socket_base::receive_buffer_size (SSU2_SOCKET_RECEIVE_BUFFER_SIZE));
m_Socket.set_option (boost::asio::socket_base::send_buffer_size (SSU2_SOCKET_SEND_BUFFER_SIZE));
m_Socket.bind (boost::asio::ip::udp::endpoint (boost::asio::ip::udp::v6(), port));
LogPrint (eLogInfo, "SSU2: Start listening port ", port);
socket.open (localEndpoint.protocol ());
if (localEndpoint.address ().is_v6 ())
socket.set_option (boost::asio::ip::v6_only (true));
socket.set_option (boost::asio::socket_base::receive_buffer_size (SSU2_SOCKET_RECEIVE_BUFFER_SIZE));
socket.set_option (boost::asio::socket_base::send_buffer_size (SSU2_SOCKET_SEND_BUFFER_SIZE));
socket.bind (localEndpoint);
LogPrint (eLogInfo, "SSU2: Start listening on ", localEndpoint);
}
catch (std::exception& ex )
{
LogPrint (eLogError, "SSU2: Failed to bind to port ", port, ": ", ex.what());
ThrowFatal ("Unable to start SSU2 transport at port ", port, ": ", ex.what ());
LogPrint (eLogError, "SSU2: Failed to bind to ", localEndpoint, ": ", ex.what());
ThrowFatal ("Unable to start SSU2 transport on ", localEndpoint, ": ", ex.what ());
}
return socket;
}
void SSU2Server::Receive ()
void SSU2Server::Receive (boost::asio::ip::udp::socket& socket)
{
Packet * packet = m_PacketsPool.AcquireMt ();
m_Socket.async_receive_from (boost::asio::buffer (packet->buf, SSU2_MTU), packet->from,
std::bind (&SSU2Server::HandleReceivedFrom, this, std::placeholders::_1, std::placeholders::_2, packet));
socket.async_receive_from (boost::asio::buffer (packet->buf, SSU2_MTU), packet->from,
std::bind (&SSU2Server::HandleReceivedFrom, this, std::placeholders::_1, std::placeholders::_2, packet, std::ref (socket)));
}
void SSU2Server::HandleReceivedFrom (const boost::system::error_code& ecode, size_t bytes_transferred, Packet * packet)
void SSU2Server::HandleReceivedFrom (const boost::system::error_code& ecode, size_t bytes_transferred,
Packet * packet, boost::asio::ip::udp::socket& socket)
{
if (!ecode)
{
packet->len = bytes_transferred;
ProcessNextPacket (packet->buf, packet->len, packet->from);
m_PacketsPool.ReleaseMt (packet);
Receive ();
Receive (socket);
}
else
{
@ -435,10 +441,10 @@ namespace transport
if (ecode != boost::asio::error::operation_aborted)
{
LogPrint (eLogError, "SSU2: Receive error: code ", ecode.value(), ": ", ecode.message ());
auto port = m_Socket.local_endpoint ().port ();
m_Socket.close ();
OpenSocket (port);
Receive ();
auto ep = socket.local_endpoint ();
socket.close ();
OpenSocket (ep);
Receive (socket);
}
}
}

9
libi2pd/SSU2.h
View File

@ -137,14 +137,15 @@ namespace transport
private:
void OpenSocket (int port);
void Receive ();
void HandleReceivedFrom (const boost::system::error_code& ecode, size_t bytes_transferred, Packet * packet);
boost::asio::ip::udp::socket& OpenSocket (const boost::asio::ip::udp::endpoint& localEndpoint);
void Receive (boost::asio::ip::udp::socket& socket);
void HandleReceivedFrom (const boost::system::error_code& ecode, size_t bytes_transferred,
Packet * packet, boost::asio::ip::udp::socket& socket);
void ProcessNextPacket (uint8_t * buf, size_t len, const boost::asio::ip::udp::endpoint& senderEndpoint);
private:
boost::asio::ip::udp::socket m_Socket;
boost::asio::ip::udp::socket m_Socket, m_SocketV6;
std::unordered_map<uint64_t, std::shared_ptr<SSU2Session> > m_Sessions;
std::map<boost::asio::ip::udp::endpoint, std::shared_ptr<SSU2Session> > m_PendingOutgoingSessions;
i2p::util::MemoryPoolMt<Packet> m_PacketsPool;