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572 lines
16 KiB
572 lines
16 KiB
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#include "EthStratumClient.h"
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#include <libdevcore/Log.h>
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#include <libethash/endian.h>
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using boost::asio::ip::tcp;
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static void diffToTarget(uint32_t *target, double diff)
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{
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uint32_t target2[8];
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uint64_t m;
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int k;
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for (k = 6; k > 0 && diff > 1.0; k--)
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diff /= 4294967296.0;
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m = (uint64_t)(4294901760.0 / diff);
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if (m == 0 && k == 6)
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memset(target2, 0xff, 32);
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else {
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memset(target2, 0, 32);
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target2[k] = (uint32_t)m;
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target2[k + 1] = (uint32_t)(m >> 32);
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}
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for (int i = 0; i < 32; i++)
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((uint8_t*)target)[31 - i] = ((uint8_t*)target2)[i];
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}
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EthStratumClient::EthStratumClient(GenericFarm<EthashProofOfWork> * f, MinerType m, string const & host, string const & port, string const & user, string const & pass, int const & retries, int const & worktimeout, int const & protocol, string const & email)
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: m_socket(m_io_service)
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{
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m_minerType = m;
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m_primary.host = host;
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m_primary.port = port;
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m_primary.user = user;
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m_primary.pass = pass;
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p_active = &m_primary;
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m_authorized = false;
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m_connected = false;
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m_pending = 0;
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m_maxRetries = retries;
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m_worktimeout = worktimeout;
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m_protocol = protocol;
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m_email = email;
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p_farm = f;
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p_worktimer = nullptr;
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connect();
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}
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EthStratumClient::~EthStratumClient()
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{
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m_io_service.stop();
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m_serviceThread.join();
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}
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void EthStratumClient::setFailover(string const & host, string const & port)
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{
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setFailover(host, port, p_active->user, p_active->pass);
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}
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void EthStratumClient::setFailover(string const & host, string const & port, string const & user, string const & pass)
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{
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m_failover.host = host;
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m_failover.port = port;
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m_failover.user = user;
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m_failover.pass = pass;
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}
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void EthStratumClient::connect()
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{
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tcp::resolver r(m_io_service);
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tcp::resolver::query q(p_active->host, p_active->port);
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r.async_resolve(q, boost::bind(&EthStratumClient::resolve_handler,
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this, boost::asio::placeholders::error,
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boost::asio::placeholders::iterator));
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cnote << "Connecting to stratum server " << p_active->host + ":" + p_active->port;
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m_serviceThread = std::thread{boost::bind(&boost::asio::io_service::run, &m_io_service)};
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}
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#define BOOST_ASIO_ENABLE_CANCELIO
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void EthStratumClient::reconnect()
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{
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if (p_worktimer) {
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p_worktimer->cancel();
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p_worktimer = nullptr;
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}
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m_io_service.reset();
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//m_socket.close(); // leads to crashes on Linux
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m_authorized = false;
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m_connected = false;
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if (!m_failover.host.empty())
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{
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m_retries++;
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if (m_retries > m_maxRetries)
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{
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if (m_failover.host == "exit") {
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disconnect();
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return;
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}
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else if (p_active == &m_primary)
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{
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p_active = &m_failover;
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}
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else {
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p_active = &m_primary;
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}
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m_retries = 0;
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}
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}
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cnote << "Reconnecting in 3 seconds...";
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boost::asio::deadline_timer timer(m_io_service, boost::posix_time::seconds(3));
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timer.wait();
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connect();
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}
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void EthStratumClient::disconnect()
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{
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cnote << "Disconnecting";
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m_connected = false;
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m_running = false;
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if (p_farm->isMining())
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{
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cnote << "Stopping farm";
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p_farm->stop();
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}
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m_socket.close();
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m_io_service.stop();
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}
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void EthStratumClient::resolve_handler(const boost::system::error_code& ec, tcp::resolver::iterator i)
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{
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if (!ec)
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{
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async_connect(m_socket, i, boost::bind(&EthStratumClient::connect_handler,
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this, boost::asio::placeholders::error,
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boost::asio::placeholders::iterator));
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}
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else
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{
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cerr << "Could not resolve host" << p_active->host + ":" + p_active->port + ", " << ec.message();
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reconnect();
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}
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}
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void EthStratumClient::connect_handler(const boost::system::error_code& ec, tcp::resolver::iterator i)
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{
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dev::setThreadName("stratum");
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if (!ec)
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{
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m_connected = true;
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cnote << "Connected to stratum server " << i->host_name() << ":" << p_active->port;
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if (!p_farm->isMining())
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{
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cnote << "Starting farm";
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if (m_minerType == MinerType::CPU)
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p_farm->start("cpu", false);
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else if (m_minerType == MinerType::CL)
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p_farm->start("opencl", false);
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else if (m_minerType == MinerType::CUDA)
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p_farm->start("cuda", false);
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else if (m_minerType == MinerType::Mixed) {
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p_farm->start("cuda", false);
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p_farm->start("opencl", true);
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}
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}
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std::ostream os(&m_requestBuffer);
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string user;
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size_t p;
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switch (m_protocol) {
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case STRATUM_PROTOCOL_STRATUM:
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os << "{\"id\": 1, \"method\": \"mining.subscribe\", \"params\": []}\n";
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break;
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case STRATUM_PROTOCOL_ETHPROXY:
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p = p_active->user.find_first_of(".");
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user = p_active->user.substr(0, p);
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if (p + 1 <= p_active->user.length())
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m_worker = p_active->user.substr(p + 1);
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else
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m_worker = "";
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if (m_email.empty())
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{
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os << "{\"id\": 1, \"worker\":\"" << m_worker << "\", \"method\": \"eth_submitLogin\", \"params\": [\"" << user << "\"]}\n";
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}
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else
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{
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os << "{\"id\": 1, \"worker\":\"" << m_worker << "\", \"method\": \"eth_submitLogin\", \"params\": [\"" << user << "\", \"" << m_email << "\"]}\n";
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}
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break;
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case STRATUM_PROTOCOL_ETHEREUMSTRATUM:
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os << "{\"id\": 1, \"method\": \"mining.subscribe\", \"params\": [\"ethminer/" << ETH_PROJECT_VERSION << "\",\"EthereumStratum/1.0.0\"]}\n";
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break;
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}
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async_write(m_socket, m_requestBuffer,
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boost::bind(&EthStratumClient::handleResponse, this,
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boost::asio::placeholders::error));
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}
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else
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{
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cwarn << "Could not connect to stratum server " << p_active->host << ":" << p_active->port << ", " << ec.message();
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reconnect();
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}
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}
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void EthStratumClient::readline() {
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x_pending.lock();
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if (m_pending == 0) {
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async_read_until(m_socket, m_responseBuffer, "\n",
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boost::bind(&EthStratumClient::readResponse, this,
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boost::asio::placeholders::error, boost::asio::placeholders::bytes_transferred));
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m_pending++;
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}
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x_pending.unlock();
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}
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void EthStratumClient::handleResponse(const boost::system::error_code& ec) {
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if (!ec)
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{
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readline();
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}
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else
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{
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dev::setThreadName("stratum");
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cwarn << "Handle response failed: " << ec.message();
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}
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}
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void EthStratumClient::readResponse(const boost::system::error_code& ec, std::size_t bytes_transferred)
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{
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dev::setThreadName("stratum");
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x_pending.lock();
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m_pending = m_pending > 0 ? m_pending - 1 : 0;
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x_pending.unlock();
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if (!ec && bytes_transferred)
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{
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std::istream is(&m_responseBuffer);
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std::string response;
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getline(is, response);
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if (!response.empty() && response.front() == '{' && response.back() == '}')
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{
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Json::Value responseObject;
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Json::Reader reader;
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if (reader.parse(response.c_str(), responseObject))
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{
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processReponse(responseObject);
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}
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else
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{
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cwarn << "Parse response failed: " << reader.getFormattedErrorMessages();
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}
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}
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else if (m_protocol != STRATUM_PROTOCOL_ETHPROXY)
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{
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cwarn << "Discarding incomplete response";
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}
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if (m_connected)
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readline();
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}
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else
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{
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cwarn << "Read response failed: " << ec.message();
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if (m_connected)
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reconnect();
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}
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}
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void EthStratumClient::processExtranonce(std::string& enonce)
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{
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m_extraNonceHexSize = enonce.length();
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cnote << "Extranonce set to " << enonce;
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for (int i = enonce.length(); i < 16; ++i) enonce += "0";
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m_extraNonce = h64(enonce);
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}
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void EthStratumClient::processReponse(Json::Value& responseObject)
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{
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Json::Value error = responseObject.get("error", {});
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if (error.isArray())
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{
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string msg = error.get(1, "Unknown error").asString();
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cnote << msg;
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}
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std::ostream os(&m_requestBuffer);
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Json::Value params;
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int id = responseObject.get("id", Json::Value::null).asInt();
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switch (id)
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{
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case 1:
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if (m_protocol == STRATUM_PROTOCOL_ETHEREUMSTRATUM)
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{
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m_nextWorkDifficulty = 1;
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params = responseObject.get("result", Json::Value::null);
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if (params.isArray())
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{
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std::string enonce = params.get((Json::Value::ArrayIndex)1, "").asString();
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processExtranonce(enonce);
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}
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os << "{\"id\": 2, \"method\": \"mining.extranonce.subscribe\", \"params\": []}\n";
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}
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if (m_protocol != STRATUM_PROTOCOL_ETHPROXY)
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{
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cnote << "Subscribed to stratum server";
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os << "{\"id\": 3, \"method\": \"mining.authorize\", \"params\": [\"" << p_active->user << "\",\"" << p_active->pass << "\"]}\n";
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}
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else
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{
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m_authorized = true;
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os << "{\"id\": 5, \"method\": \"eth_getWork\", \"params\": []}\n"; // not strictly required but it does speed up initialization
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}
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async_write(m_socket, m_requestBuffer,
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boost::bind(&EthStratumClient::handleResponse, this,
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boost::asio::placeholders::error));
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break;
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case 2:
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// nothing to do...
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break;
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case 3:
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m_authorized = responseObject.get("result", Json::Value::null).asBool();
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if (!m_authorized)
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{
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cnote << "Worker not authorized:" << p_active->user;
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disconnect();
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return;
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}
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cnote << "Authorized worker " << p_active->user;
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break;
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case 4:
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if (responseObject.get("result", false).asBool()) {
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cnote << "B-) Submitted and accepted.";
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p_farm->acceptedSolution(m_stale);
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}
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else {
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cwarn << ":-( Not accepted.";
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p_farm->rejectedSolution(m_stale);
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}
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break;
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default:
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string method, workattr;
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unsigned index;
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if (m_protocol != STRATUM_PROTOCOL_ETHPROXY)
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{
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method = responseObject.get("method", "").asString();
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workattr = "params";
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index = 1;
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}
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else
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{
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method = "mining.notify";
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workattr = "result";
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index = 0;
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}
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if (method == "mining.notify")
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{
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params = responseObject.get(workattr.c_str(), Json::Value::null);
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if (params.isArray())
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{
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string job = params.get((Json::Value::ArrayIndex)0, "").asString();
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if (m_protocol == STRATUM_PROTOCOL_ETHEREUMSTRATUM)
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{
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string sSeedHash = params.get((Json::Value::ArrayIndex)1, "").asString();
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string sHeaderHash = params.get((Json::Value::ArrayIndex)2, "").asString();
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if (sHeaderHash != "" && sSeedHash != "")
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{
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cnote << "Received new job #" + job;
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h256 seedHash = h256(sSeedHash);
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m_previous.headerHash = m_current.headerHash;
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m_previous.seedHash = m_current.seedHash;
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m_previous.boundary = m_current.boundary;
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m_previous.startNonce = m_current.startNonce;
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m_previous.exSizeBits = m_previous.exSizeBits;
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m_previousJob = m_job;
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m_current.headerHash = h256(sHeaderHash);
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m_current.seedHash = seedHash;
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m_current.boundary = h256();
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diffToTarget((uint32_t*)m_current.boundary.data(), m_nextWorkDifficulty);
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m_current.startNonce = ethash_swap_u64(*((uint64_t*)m_extraNonce.data()));
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m_current.exSizeBits = m_extraNonceHexSize * 4;
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m_job = job;
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p_farm->setWork(m_current);
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}
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}
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else
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{
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string sHeaderHash = params.get((Json::Value::ArrayIndex)index++, "").asString();
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string sSeedHash = params.get((Json::Value::ArrayIndex)index++, "").asString();
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string sShareTarget = params.get((Json::Value::ArrayIndex)index++, "").asString();
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// coinmine.pl fix
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int l = sShareTarget.length();
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if (l < 66)
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sShareTarget = "0x" + string(66 - l, '0') + sShareTarget.substr(2);
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if (sHeaderHash != "" && sSeedHash != "" && sShareTarget != "")
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{
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cnote << "Received new job #" + job.substr(0, 8);
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h256 seedHash = h256(sSeedHash);
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h256 headerHash = h256(sHeaderHash);
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if (headerHash != m_current.headerHash)
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{
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//x_current.lock();
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if (p_worktimer)
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p_worktimer->cancel();
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m_previous.headerHash = m_current.headerHash;
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m_previous.seedHash = m_current.seedHash;
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m_previous.boundary = m_current.boundary;
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m_previousJob = m_job;
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m_current.headerHash = h256(sHeaderHash);
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m_current.seedHash = seedHash;
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m_current.boundary = h256(sShareTarget);
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m_job = job;
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p_farm->setWork(m_current);
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//x_current.unlock();
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p_worktimer = new boost::asio::deadline_timer(m_io_service, boost::posix_time::seconds(m_worktimeout));
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p_worktimer->async_wait(boost::bind(&EthStratumClient::work_timeout_handler, this, boost::asio::placeholders::error));
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}
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}
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}
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}
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}
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else if (method == "mining.set_difficulty" && m_protocol == STRATUM_PROTOCOL_ETHEREUMSTRATUM)
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{
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params = responseObject.get("params", Json::Value::null);
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if (params.isArray())
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{
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m_nextWorkDifficulty = params.get((Json::Value::ArrayIndex)0, 1).asDouble();
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if (m_nextWorkDifficulty <= 0.0001) m_nextWorkDifficulty = 0.0001;
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cnote << "Difficulty set to " << m_nextWorkDifficulty;
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}
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}
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else if (method == "mining.set_extranonce" && m_protocol == STRATUM_PROTOCOL_ETHEREUMSTRATUM)
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{
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params = responseObject.get("params", Json::Value::null);
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if (params.isArray())
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{
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std::string enonce = params.get((Json::Value::ArrayIndex)0, "").asString();
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processExtranonce(enonce);
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}
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}
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else if (method == "client.get_version")
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{
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os << "{\"error\": null, \"id\" : " << id << ", \"result\" : \"" << ETH_PROJECT_VERSION << "\"}\n";
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async_write(m_socket, m_requestBuffer,
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boost::bind(&EthStratumClient::handleResponse, this,
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boost::asio::placeholders::error));
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}
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break;
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}
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}
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void EthStratumClient::work_timeout_handler(const boost::system::error_code& ec) {
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if (!ec) {
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cnote << "No new work received in" << m_worktimeout << "seconds.";
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reconnect();
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}
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}
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bool EthStratumClient::submit(EthashProofOfWork::Solution solution) {
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x_current.lock();
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EthashProofOfWork::WorkPackage tempWork(m_current);
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string temp_job = m_job;
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EthashProofOfWork::WorkPackage tempPreviousWork(m_previous);
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string temp_previous_job = m_previousJob;
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x_current.unlock();
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cnote << "Solution found; Submitting to" << p_active->host << "...";
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string minernonce;
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if (m_protocol != STRATUM_PROTOCOL_ETHEREUMSTRATUM)
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cnote << " Nonce:" << "0x" + solution.nonce.hex();
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else
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minernonce = solution.nonce.hex().substr(m_extraNonceHexSize, 16 - m_extraNonceHexSize);
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|
|
|
|
if (EthashAux::eval(tempWork.seedHash, tempWork.headerHash, solution.nonce).value < tempWork.boundary)
|
|
{
|
|
string json;
|
|
|
|
switch (m_protocol) {
|
|
case STRATUM_PROTOCOL_STRATUM:
|
|
json = "{\"id\": 4, \"method\": \"mining.submit\", \"params\": [\"" + p_active->user + "\",\"" + temp_job + "\",\"0x" + solution.nonce.hex() + "\",\"0x" + tempWork.headerHash.hex() + "\",\"0x" + solution.mixHash.hex() + "\"]}\n";
|
|
break;
|
|
case STRATUM_PROTOCOL_ETHPROXY:
|
|
json = "{\"id\": 4, \"worker\":\"" + m_worker + "\", \"method\": \"eth_submitWork\", \"params\": [\"0x" + solution.nonce.hex() + "\",\"0x" + tempWork.headerHash.hex() + "\",\"0x" + solution.mixHash.hex() + "\"]}\n";
|
|
break;
|
|
case STRATUM_PROTOCOL_ETHEREUMSTRATUM:
|
|
json = "{\"id\": 4, \"method\": \"mining.submit\", \"params\": [\"" + p_active->user + "\",\"" + temp_job + "\",\"" + minernonce + "\"]}\n";
|
|
break;
|
|
}
|
|
|
|
std::ostream os(&m_requestBuffer);
|
|
os << json;
|
|
m_stale = false;
|
|
async_write(m_socket, m_requestBuffer,
|
|
boost::bind(&EthStratumClient::handleResponse, this,
|
|
boost::asio::placeholders::error));
|
|
return true;
|
|
}
|
|
else if (EthashAux::eval(tempPreviousWork.seedHash, tempPreviousWork.headerHash, solution.nonce).value < tempPreviousWork.boundary)
|
|
{
|
|
string json;
|
|
|
|
switch (m_protocol) {
|
|
case STRATUM_PROTOCOL_STRATUM:
|
|
json = "{\"id\": 4, \"method\": \"mining.submit\", \"params\": [\"" + p_active->user + "\",\"" + temp_previous_job + "\",\"0x" + solution.nonce.hex() + "\",\"0x" + tempPreviousWork.headerHash.hex() + "\",\"0x" + solution.mixHash.hex() + "\"]}\n";
|
|
break;
|
|
case STRATUM_PROTOCOL_ETHPROXY:
|
|
json = "{\"id\": 4, \"worker\":\"" + m_worker + "\", \"method\": \"eth_submitWork\", \"params\": [\"0x" + solution.nonce.hex() + "\",\"0x" + tempPreviousWork.headerHash.hex() + "\",\"0x" + solution.mixHash.hex() + "\"]}\n";
|
|
break;
|
|
case STRATUM_PROTOCOL_ETHEREUMSTRATUM:
|
|
json = "{\"id\": 4, \"method\": \"mining.submit\", \"params\": [\"" + p_active->user + "\",\"" + temp_previous_job + "\",\"" + minernonce + "\"]}\n";
|
|
break;
|
|
}
|
|
|
|
std::ostream os(&m_requestBuffer);
|
|
os << json;
|
|
m_stale = true;
|
|
cwarn << "Submitting stale solution.";
|
|
async_write(m_socket, m_requestBuffer,
|
|
boost::bind(&EthStratumClient::handleResponse, this,
|
|
boost::asio::placeholders::error));
|
|
return true;
|
|
}
|
|
else {
|
|
m_stale = false;
|
|
cwarn << "FAILURE: GPU gave incorrect result!";
|
|
p_farm->failedSolution();
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
|