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StratumServer: added scoring system for clients

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Ban clients only after a few bad shares without good shares compensating them.
This commit is contained in:
SChernykh 2022-08-22 11:07:11 +02:00
parent 42f7e6f486
commit cc60ab3d63
2 changed files with 14 additions and 1 deletions
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13
src/stratum_server.cpp
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@ -33,6 +33,10 @@ static constexpr uint64_t AUTO_DIFF_TARGET_TIME = 30;
// Use short target format (4 bytes) for diff <= 4 million
static constexpr uint64_t TARGET_4_BYTES_LIMIT = std::numeric_limits<uint64_t>::max() / 4000001;
static constexpr int32_t BAD_SHARE_POINTS = -5;
static constexpr int32_t GOOD_SHARE_POINTS = 1;
static constexpr int32_t BAN_THRESHOLD_POINTS = -15;
#include "tcp_server.inl"
namespace p2pool {
@ -840,9 +844,12 @@ void StratumServer::on_share_found(uv_work_t* req)
if (pow_hash != share->m_resultHash) {
LOGWARN(4, "client " << static_cast<char*>(client->m_addrString) << " submitted a share with invalid PoW");
share->m_result = SubmittedShare::Result::INVALID_POW;
client->m_score += BAD_SHARE_POINTS;
return;
}
client->m_score += GOOD_SHARE_POINTS;
const uint64_t n = server->m_cumulativeHashes + hashes;
const double diff = sidechain_difficulty.to_double();
const double effort = static_cast<double>(n - server->m_cumulativeHashesAtLastShare) * 100.0 / diff;
@ -868,6 +875,7 @@ void StratumServer::on_share_found(uv_work_t* req)
else {
LOGWARN(4, "client " << static_cast<char*>(client->m_addrString) << " got a low diff share");
share->m_result = SubmittedShare::Result::LOW_DIFF;
client->m_score += BAD_SHARE_POINTS;
}
}
@ -910,7 +918,7 @@ void StratumServer::on_after_share_found(uv_work_t* req, int /*status*/)
return s.m_pos;
});
if (bad_share) {
if (bad_share && (client->m_score <= BAN_THRESHOLD_POINTS)) {
client->ban(DEFAULT_BAN_TIME);
client->close();
}
@ -934,6 +942,7 @@ StratumServer::StratumClient::StratumClient()
, m_customDiff{}
, m_autoDiff{}
, m_customUser{}
, m_score(0)
{
}
@ -953,6 +962,8 @@ void StratumServer::StratumClient::reset()
m_customDiff = {};
m_autoDiff = {};
m_customUser[0] = '\0';
m_score = 0;
}
bool StratumServer::StratumClient::on_connect()

2
src/stratum_server.h
View file

@ -78,6 +78,8 @@ public:
difficulty_type m_customDiff;
difficulty_type m_autoDiff;
char m_customUser[32];
int32_t m_score;
};
bool on_login(StratumClient* client, uint32_t id, const char* login);