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Sammy Libre 2015-07-05 14:49:07 +05:00
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.DS_Store
# CMake
CMakeCache.txt
CMakeFiles
cmake_install.cmake
install_manifest.txt
*.cmake
Makefile
# Object files
*.a
*.so
*.dylib
# Configs
config.json
aeon.json

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cmake_minimum_required (VERSION 2.8.11)
project (pool)
if (DEFINED ENV{MONERO_DIR})
get_filename_component(MONERO_DIR $ENV{MONERO_DIR} ABSOLUTE)
message("Using Monero source from env ${MONERO_DIR}")
else()
get_filename_component(MONERO_DIR "${CMAKE_SOURCE_DIR}/../bitmonero" ABSOLUTE)
message("Monero surce directory is not defined, using default ${MONERO_DIR}")
endif()
add_subdirectory(hashing)
add_subdirectory(cnutil)

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GNU GENERAL PUBLIC LICENSE
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Also add information on how to contact you by electronic and paper mail.
If the program is interactive, make it output a short notice like this
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The hypothetical commands `show w' and `show c' should show the appropriate
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This General Public License does not permit incorporating your program into
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# go-cryptonote-pool
High performance CryptoNote mining stratum written in Golang backed by Redis.
**Stratum feature list:**
* Full [node-cryptonote-pool](https://github.com/zone117x/node-cryptonote-pool) database compatibility
* Concurrent shares processing, each connection is handled in a lightweight thread of execution
* Several configurable stratum policies to prevent basic attacks
* Banning policy using [**ipset**s](http://ipset.netfilter.org/) on Linux for high performance banning
* Whitelist for trusted miners and blacklist for unwelcome guests
* AES-NI enabled share validation code with fallback to slow implementation provided by linking with [**Monero**](https://github.com/monero-project/bitmonero) libraries
* Integrated NewRelic performance monitoring plugin
### Installation
Dependencies:
* go-1.4
* boost-1.55+
* cmake
Install required packages:
go get gopkg.in/redis.v3
go get github.com/yvasiyarov/gorelic
#### Mac OS X
Download and compile [Monero](https://github.com/monero-project/bitmonero) daemon.
Now clone stratum repo and compile it:
git clone https://github.com/sammy007/go-cryptonote-pool.git
cmake .
make
Notice that for share validation stratum requires bitmonero source tree where .a libs already compiled. By default stratum will use <code>../bitmonero</code> directory. You can override this behaviour by passing <code>MONERO_DIR</code> env variable:
MONERO_DIR=/path/to/bitmonero cmake .
make
#### Linux
Installation on linux is similar to OS X installation and currently the only dfference is that you should copy *.so* libs from *hashing* and *cnutil* directories to */usr/local/lib* or similar dir in order to make CGO happy. I would recommend you to use Ubuntu 14.04 LTS.
In order to successfully link with bitmonero libs, recompile bitmonero with:
CXXFLAGS="-fPIC" CFLAGS="-fPIC" make release
Build stratum:
MONERO_DIR=/opt/src/bitmonero cmake .
make
Run it:
LD_LIBRARY_PATH="/usr/local/lib/" GOPATH=/path/to/go go run main.go
More info on *GOPATH* you can find in a [wiki](https://github.com/golang/go/wiki/GOPATH).
### Configuration
Configuration is self-describing, just copy *config.example.json* to *config.json* and run stratum with path to config file as 1st argument. There is default XMR address of monero core team in config example and open monero rpc node from [moneroclub.com](https://www.moneroclub.com/node).
#### Redis
Leave Redis password blank if you have local setup in a trusted environment. Don't rely on Redis password, it's easily bruteforceable. Password option is only for some clouds. There is a connection pool, use some reasonable value. Remember, that each valid share submission will lease one connection from a pool due to <code>multi</code> exec and instantly release it, this is how go-redis works.
#### Policies
Stratum policy server collecting several stats on per IP basis.
Banning enabled by default. Specify <code>ipset</code> name for banning. Timeout argument will be passed to this ipset. For ipset usage refer to [this article](https://wiki.archlinux.org/index.php/Ipset). Stratum will use os/exec command like <code>sudo ipset ...</code> for banning, so you have to configure sudo properly and make sure that your system will never ask for password:
*/etc/sudoers.d/stratum*
stratum ALL=NOPASSWD: /sbin/ipset
Use limits to prevent connection flood to your stratum, there is initial <code>limit</code> and <code>limitJump</code>. Policy server will increase number of allowed connections on each valid share submission. Stratum will bypass this policy regarding <code>grace</code> time specified on start.
#### Payouts and Block Unlocking
This is just stratum yet. Use corresponding [node-cryptonote-pool](https://github.com/zone117x/node-cryptonote-pool) modules for block unlocking and payout processing. Database is 100% compatible.
### Private Pool Guidelines
For personal private pool you can use [DigitalOcean](https://www.digitalocean.com/?refcode=2a6767e6285f) droplet. With recent blockchain-db merged into Monero it's ok to run it even on 5 USD plan. You will receive 10 USD free credit there.
### TODO
Still in early stage, despite that I am using it for private setups, stratum requires a lot of stability tests. Please run it with <code>-race</code> flag with <code>GORACE="log_path=/path/to/race.log"</code> in private setup and send contents of this file to me if you are "lucky" and found race. It will make stratum ~20x slower, but it does not hit performance if you are soloing with a dozen of GPUs. Look at *-debug.fish* script for example.
Cool stuff will be added after excessive testing, I always have ideas for improvement and new features.
### Donations
* **BTC**: [16bBz4wZPh7kV53nFMf8LmtJHE2rHsADB2](https://blockchain.info/address/16bBz4wZPh7kV53nFMf8LmtJHE2rHsADB2)
* **XMR**: 4Aag5kkRHmCFHM5aRUtfB2RF3c5NDmk5CVbGdg6fefszEhhFdXhnjiTCr81YxQ9bsi73CSHT3ZN3p82qyakHwZ2GHYqeaUr
* **XMR openalias**: wallet.hashinvest.net
### License
Released under the GNU General Public License v2.
http://www.gnu.org/licenses/gpl-2.0.html

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Makefile
CmakeCache.txt
cmake_install.cmake
CMakeFiles
*.a
*.so
*.dylib

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set(CXXLIB "cnutilxx")
find_package(Boost COMPONENTS thread system program_options date_time filesystem REQUIRED)
# Flags
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11 -D_GNU_SOURCE")
include_directories(${Boost_INCLUDE_DIRS})
include_directories("${MONERO_DIR}/contrib/epee/include")
include_directories("${MONERO_DIR}/src")
# Build library
add_library(${CXXLIB} SHARED cnutilxx/main.cpp)
target_link_libraries(${CXXLIB}
${MONERO_DIR}/build/release/src/cryptonote_core/libcryptonote_core.a
${MONERO_DIR}/build/release/src/crypto/libcrypto.a
${MONERO_DIR}/build/release/src/common/libcommon.a
)
target_link_libraries(${CXXLIB}
${Boost_THREAD_LIBRARY}
${Boost_SYSTEM_LIBRARY}
${Boost_PROGRAM_OPTIONS_LIBRARY}
${Boost_DATE_TIME_LIBRARY}
${Boost_FILESYSTEM_LIBRARY}
)
set(LIB "cnutil")
# Flags
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -std=c11 -D_GNU_SOURCE")
# Build library
add_library(${LIB} SHARED cnutil.c)
target_link_libraries(${LIB} ${CXXLIB})

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#include <stdint.h>
#include "stdbool.h"
#include <stdio.h>
#include <stdlib.h>
#include "cnutilxx/main.h"
uint32_t convert_blob(const char *blob, size_t len, char *out) {
return cn_convert_blob(blob, len, out);
}
bool validate_address(const char *addr, size_t len) {
return cn_validate_address(addr, len);
}

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package cnutil
// #cgo CFLAGS: -std=c11 -D_GNU_SOURCE
// #cgo LDFLAGS: -L. -lcnutil -lcnutilxx -lstdc++
// #include "cnutil.h"
import "C"
import "unsafe"
func ConvertBlob(blob []byte) []byte {
output := make([]byte, 76)
out := (*C.char)(unsafe.Pointer(&output[0]))
input := C.CString(string(blob))
defer C.free(unsafe.Pointer(input))
size := (C.uint32_t)(len(blob))
C.convert_blob(input, size, out)
return output
}
func ValidateAddress(addr string) bool {
input := C.CString(addr)
defer C.free(unsafe.Pointer(input))
size := (C.uint32_t)(len(addr))
result := C.validate_address(input, size)
return (bool)(result)
}

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#include <stdio.h>
#include <stdint.h>
#include <stdlib.h>
#include "stdbool.h"
uint32_t convert_blob(const char *blob, uint32_t len, char *out);
bool validate_address(const char *addr, uint32_t len);

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package cnutil
import (
"encoding/hex"
"log"
"testing"
)
func TestConvertBlob(t *testing.T) {
hashBytes, _ := hex.DecodeString("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")
expectedResult, _ := hex.DecodeString("0100a5d1fca9057dff46d140d453a672437ba0ec7d6a74bc5fa0391f8a918e41fd7ba2cf6fc1af00000000e81cb2bf0d2c5054a49bda094c39cb263a9565b9b81cf4c4f848292040419f4a01")
output := ConvertBlob(hashBytes)
if len(output) != 76 {
t.Error("Invalid result length")
}
ok := true
for i := range output {
if expectedResult[i] != output[i] {
ok = false
break
}
}
if !ok {
log.Printf("Got: %v %v", output, len(output))
log.Printf("Expected: %v %v", expectedResult, len(expectedResult))
t.Error("Invalid result")
}
}
func TestDecodeAddress(t *testing.T) {
addy := "45pyCXYn2UBVUmCFjgKr7LF8hCTeGwucWJ2xni7qrbj6GgAZBFY6tANarozZx9DaQqHyuR1AL8HJbRmqwLhUaDpKJW4hqS1"
if !ValidateAddress(addy) {
t.Error("Valid address")
}
addy = "46BeWrHpwXmHDpDEUmZBWZfoQpdc6HaERCNmx1pEYL2rAcuwufPN9rXHHtyUA4QVy66qeFQkn6sfK8aHYjA3jk3o1Bv16em"
if !ValidateAddress(addy) {
t.Error("Valid address")
}
if ValidateAddress("OMG") {
t.Error("Invalid address")
}
}
func BenchmarkConvertBlob(b *testing.B) {
for i := 0; i < b.N; i++ {
hashBytes, _ := hex.DecodeString("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")
ConvertBlob(hashBytes)
}
}
func BenchmarkDecodeAddress(b *testing.B) {
for i := 0; i < b.N; i++ {
ValidateAddress("45pyCXYn2UBVUmCFjgKr7LF8hCTeGwucWJ2xni7qrbj6GgAZBFY6tANarozZx9DaQqHyuR1AL8HJbRmqwLhUaDpKJW4hqS1")
}
}

30
cnutil/cnutilxx/main.cpp Normal file
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#include <stdint.h>
#include <string>
#include "cryptonote_core/cryptonote_format_utils.h"
#include "common/base58.h"
using namespace cryptonote;
// Well, it's dirty and useless, but without it I can't link to bitmonero's /build/release/src/**/*.a libs
unsigned int epee::g_test_dbg_lock_sleep = 0;
extern "C" uint32_t cn_convert_blob(const char *blob, size_t len, char *out) {
std::string input = std::string(blob, len);
std::string output = "";
block b = AUTO_VAL_INIT(b);
if (!parse_and_validate_block_from_blob(input, b)) {
return 0;
}
output = get_block_hashing_blob(b);
output.copy(out, output.length(), 0);
return output.length();
}
extern "C" bool cn_validate_address(const char *addr, size_t len) {
std::string input = std::string(addr, len);
std::string output = "";
uint64_t prefix;
return tools::base58::decode_addr(addr, prefix, output);
}

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cnutil/cnutilxx/main.h Normal file
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#include <stdint.h>
#ifdef __cplusplus
extern "C" {
#endif
uint32_t cn_convert_blob(const char *blob, uint32_t len, char *out);
bool cn_validate_address(const char *addr, uint32_t len);
#ifdef __cplusplus
}
#endif

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{
"address": "46BeWrHpwXmHDpDEUmZBWZfoQpdc6HaERCNmx1pEYL2rAcuwufPN9rXHHtyUA4QVy66qeFQkn6sfK8aHYjA3jk3o1Bv16em",
"threads": 2,
"coin": "monero",
"stratum": {
"timeout": "15m",
"blockRefreshInterval": "1s",
"listen": [
{
"host": "0.0.0.0",
"port": 1111,
"diff": 8000,
"maxConn": 32768
},
{
"host": "0.0.0.0",
"port": 3333,
"diff": 16000,
"maxConn": 32768
},
{
"host": "0.0.0.0",
"port": 5555,
"diff": 16000,
"maxConn": 32768
}
]
},
"daemon": {
"host": "node.moneroclub.com",
"port": 8880,
"timeout": "1s"
},
"redis": {
"endpoint": "127.0.0.1:6379",
"poolSize": 8,
"database": 0
},
"policy": {
"workers": 8,
"resetInterval": "60m",
"refreshInterval": "1m",
"banning": {
"enabled": true,
"ipset": "blacklist",
"timeout": 1800,
"invalidPercent": 30,
"checkThreshold": 30,
"malformedLimit": 5
},
"limits": {
"enabled": false,
"limit": 30,
"grace": "5m",
"limitJump": 10
}
},
"newrelicEnabled": false,
"newrelicName": "MyStratum",
"newrelicKey": "SECRET_KEY",
"newrelicVerbose": false
}

68
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package pool
type Config struct {
Address string `json:"address"`
Stratum Stratum `json:"stratum"`
Daemon Daemon `json:"daemon"`
Redis Redis `json:"redis"`
Threads int `json:"threads"`
Coin string `json:"coin"`
Policy Policy `json:"policy"`
NewrelicName string `json:"newrelicName"`
NewrelicKey string `json:"newrelicKey"`
NewrelicVerbose bool `json:"newrelicVerbose"`
NewrelicEnabled bool `json:"newrelicEnabled"`
}
type Stratum struct {
Timeout string `json:"timeout"`
BlockRefreshInterval string `json:"blockRefreshInterval"`
Ports []Port `json:"listen"`
}
type Port struct {
Host string `json:"host"`
Port int `json:"port"`
Difficulty int64 `json:"diff"`
MaxConn int `json:"maxConn"`
}
type Daemon struct {
Host string `json:"host"`
Port int `json:"port"`
Timeout string `json:"timeout"`
}
type Redis struct {
Endpoint string `json:"endpoint"`
Password string `json:"password"`
Database int64 `json:"database"`
PoolSize int `json:"poolSize"`
}
type Policy struct {
Workers int `json:"workers"`
Banning Banning `json:"banning"`
Limits Limits `json:"limits"`
ResetInterval string `json:"resetInterval"`
RefreshInterval string `json:"refreshInterval"`
}
type Banning struct {
Enabled bool `json:"enabled"`
IPSet string `json:"ipset"`
Timeout int64 `json:"timeout"`
InvalidPercent float32 `json:"invalidPercent"`
CheckThreshold uint32 `json:"checkThreshold"`
MalformedLimit uint32 `json:"malformedLimit"`
}
type Limits struct {
Enabled bool `json:"enabled"`
Limit int32 `json:"limit"`
Grace string `json:"grace"`
LimitJump int32 `json:"limitJump"`
}

91
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package rpc
import (
"bytes"
"encoding/json"
"errors"
"fmt"
"io/ioutil"
"net/http"
"time"
"../pool"
)
type RPCClient struct {
url string
client *http.Client
}
type GetBlockTemplateReply struct {
Blob string `json:"blocktemplate_blob"`
Difficulty int64 `json:"difficulty"`
ReservedOffset int `json:"reserved_offset"`
Height int64 `json:"height"`
PrevHash string `json:"prev_hash"`
}
type JSONRpcResp struct {
Id *json.RawMessage `json:"id"`
Result *json.RawMessage `json:"result"`
Error map[string]interface{} `json:"error"`
}
func NewRPCClient(cfg *pool.Config) *RPCClient {
url := fmt.Sprintf("http://%s:%v/json_rpc", cfg.Daemon.Host, cfg.Daemon.Port)
rpcClient := &RPCClient{url: url}
timeout, _ := time.ParseDuration(cfg.Daemon.Timeout)
rpcClient.client = &http.Client{
Timeout: timeout,
}
return rpcClient
}
func (r *RPCClient) GetBlockTemplate(reserveSize int, address string) (GetBlockTemplateReply, error) {
params := map[string]interface{}{"reserve_size": reserveSize, "wallet_address": address}
rpcResp, err := r.doPost(r.url, "getblocktemplate", params)
var reply GetBlockTemplateReply
if err != nil {
return reply, err
}
if rpcResp.Error != nil {
return reply, errors.New(string(rpcResp.Error["message"].(string)))
}
err = json.Unmarshal(*rpcResp.Result, &reply)
return reply, err
}
func (r *RPCClient) SubmitBlock(hash string) (JSONRpcResp, error) {
rpcResp, err := r.doPost(r.url, "submitblock", []string{hash})
if err != nil {
return rpcResp, err
}
if rpcResp.Error != nil {
return rpcResp, errors.New(string(rpcResp.Error["message"].(string)))
}
return rpcResp, nil
}
func (r *RPCClient) doPost(url string, method string, params interface{}) (JSONRpcResp, error) {
jsonReq := map[string]interface{}{"id": "0", "method": method, "params": params}
data, _ := json.Marshal(jsonReq)
req, err := http.NewRequest("POST", url, bytes.NewBuffer(data))
req.Header.Set("Content-Length", (string)(len(data)))
req.Header.Set("Content-Type", "application/json")
req.Header.Set("Accept", "application/json")
resp, err := r.client.Do(req)
var rpcResp JSONRpcResp
if err != nil {
return rpcResp, err
}
defer resp.Body.Close()
body, _ := ioutil.ReadAll(resp.Body)
err = json.Unmarshal(body, &rpcResp)
return rpcResp, err
}

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package storage
import (
"log"
"strconv"
"strings"
"time"
"gopkg.in/redis.v3"
"../pool"
)
type RedisClient struct {
client *redis.Client
prefix string
}
func NewRedisClient(cfg *pool.Redis, prefix string) *RedisClient {
client := redis.NewClient(&redis.Options{
Addr: cfg.Endpoint,
Password: cfg.Password,
DB: cfg.Database,
PoolSize: cfg.PoolSize,
})
return &RedisClient{client: client, prefix: prefix}
}
func (r *RedisClient) Check() {
pong, err := r.client.Ping().Result()
if err != nil {
log.Fatalf("Can't establish Redis connection: %v", err)
}
log.Printf("Redis PING command reply: %v", pong)
}
// Always returns list of addresses. If Redis fails it will return empty list.
func (r *RedisClient) GetBlacklist() []string {
cmd := r.client.SMembers(r.formatKey("blacklist"))
if cmd.Err() != nil {
log.Printf("Failed to get blacklist from Redis: %v", cmd.Err())
return []string{}
}
return cmd.Val()
}
// Always returns list of IPs. If Redis fails it will return empty list.
func (r *RedisClient) GetWhitelist() []string {
cmd := r.client.SMembers(r.formatKey("whitelist"))
if cmd.Err() != nil {
log.Printf("Failed to get blacklist from Redis: %v", cmd.Err())
return []string{}
}
return cmd.Val()
}
func (r *RedisClient) WriteShare(login string, diff int64) {
tx := r.client.Multi()
defer tx.Close()
ms := time.Now().UnixNano() / 1000000
ts := ms / 1000
_, err := tx.Exec(func() error {
r.writeShare(tx, ms, ts, login, diff)
return nil
})
if err != nil {
log.Printf("Failed to insert share data into Redis: %v", err)
}
}
func (r *RedisClient) WriteBlock(login string, diff, roundDiff, height int64, hashHex string) {
tx := r.client.Multi()
defer tx.Close()
ms := time.Now().UnixNano() / 1000000
ts := ms / 1000
cmds, err := tx.Exec(func() error {
r.writeShare(tx, ms, ts, login, diff)
tx.HSet(r.formatKey("stats"), "lastBlockFound", strconv.FormatInt(ms, 10))
tx.ZIncrBy(r.formatKey("finders"), 1, login)
tx.Rename(r.formatKey("shares", "roundCurrent"), r.formatKey("shares", formatRound(height)))
tx.HGetAllMap(r.formatKey("shares", formatRound(height)))
return nil
})
if err != nil {
log.Printf("Failed to insert block candidate into Redis: %v", err)
} else {
sharesMap, _ := cmds[7].(*redis.StringStringMapCmd).Result()
totalShares := int64(0)
for _, v := range sharesMap {
n, _ := strconv.ParseInt(v, 10, 64)
totalShares += n
}
s := join(hashHex, ts, roundDiff, totalShares)
cmd := r.client.ZAdd(r.formatKey("blocks", "candidates"), redis.Z{Score: float64(height), Member: s})
if cmd.Err() != nil {
log.Printf("Failed to insert block candidate shares into Redis: %v", cmd.Err())
} else {
log.Printf("Inserted block to Redis, height: %v, variance: %v/%v, %v", height, totalShares, roundDiff, cmd.Val())
}
}
}
func (r *RedisClient) writeShare(tx *redis.Multi, ms, ts int64, login string, diff int64) {
tx.HIncrBy(r.formatKey("shares", "roundCurrent"), login, diff)
tx.ZAdd(r.formatKey("hashrate"), redis.Z{Score: float64(ts), Member: join(diff, login, ms)})
tx.HIncrBy(r.formatKey("workers", login), "hashes", diff)
tx.HSet(r.formatKey("workers", login), "lastShare", strconv.FormatInt(ts, 10))
}
func (r *RedisClient) formatKey(args ...interface{}) string {
return join(r.prefix, join(args...))
}
func formatRound(height int64) string {
return "round" + strconv.FormatInt(height, 10)
}
func join(args ...interface{}) string {
s := make([]string, len(args))
for i, v := range args {
switch v.(type) {
case string:
s[i] = v.(string)
case int64:
s[i] = strconv.FormatInt(v.(int64), 10)
default:
panic("Invalid type specified for conversion")
}
}
return strings.Join(s, ":")
}

74
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package storage
import (
"gopkg.in/redis.v3"
"os"
"reflect"
"strings"
"testing"
)
var r *RedisClient
func TestMain(m *testing.M) {
client := redis.NewClient(&redis.Options{Addr: "127.0.0.1:6379"})
r = &RedisClient{client: client, prefix: "test"}
r.client.FlushAll()
os.Exit(m.Run())
}
func TestWriteBlock(t *testing.T) {
r.client.FlushAll()
r.WriteBlock("addy", 1000, 999, 0, "abcdef")
sharesRes := r.client.HGetAllMap("test:shares:round0").Val()
expectedRound := map[string]string{"addy": "1000"}
if !reflect.DeepEqual(sharesRes, expectedRound) {
t.Errorf("Invalid round data: %v", sharesRes)
}
blockRes := r.client.ZRevRangeWithScores("test:blocks:candidates", 0, 99999).Val()
blockRes = stripTimestampsFromZs(blockRes)
expectedCandidates := []redis.Z{redis.Z{0, "abcdef:*:999:1000"}}
if !reflect.DeepEqual(blockRes, expectedCandidates) {
t.Errorf("Invalid candidates data: %v, expected: %v", blockRes, expectedCandidates)
}
}
func TestWriteBlockAtSameHeight(t *testing.T) {
r.client.FlushAll()
r.WriteBlock("addy", 1000, 999, 1, "00000000")
r.WriteBlock("addy", 2000, 999, 1, "00000001")
r.WriteBlock("addy", 3000, 999, 1, "00000002")
sharesRes := r.client.HGetAllMap("test:shares:round1").Val()
expectedRound := map[string]string{"addy": "3000"}
if !reflect.DeepEqual(sharesRes, expectedRound) {
t.Errorf("Invalid round data: %v", sharesRes)
}
blockRes := r.client.ZRevRangeWithScores("test:blocks:candidates", 0, 99999).Val()
blockRes = stripTimestampsFromZs(blockRes)
expectedBlocks := []redis.Z{redis.Z{1, "00000002:*:999:3000"}, redis.Z{1, "00000001:*:999:2000"}, redis.Z{1, "00000000:*:999:1000"}}
if len(blockRes) != 3 {
t.Errorf("Invalid number of candidates: %v, expected: %v", len(blockRes), 3)
}
if !reflect.DeepEqual(blockRes, expectedBlocks) {
t.Errorf("Invalid candidates data: %v, expected: %v", blockRes, expectedBlocks)
}
}
func stripTimestampFromZ(z redis.Z) redis.Z {
k := strings.Split(z.Member, ":")
res := []string{k[0], "*", k[2], k[3]}
return redis.Z{Score: z.Score, Member: strings.Join(res, ":")}
}
func stripTimestampsFromZs(zs []redis.Z) []redis.Z {
var res []redis.Z
for _, z := range zs {
res = append(res, stripTimestampFromZ(z))
}
return res
}

66
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package stratum
import (
"bytes"
"encoding/binary"
"encoding/hex"
"log"
"sync/atomic"
"../../cnutil"
)
type BlockTemplate struct {
Blob string
Difficulty int64
Height int64
ReservedOffset int
PrevHash string
Buffer []byte
ExtraNonce uint32
}
func (b *BlockTemplate) nextBlob() (string, uint32) {
// Preventing race by using atomic op here
// No need for using locks, because this is only one write to BT and it's atomic
extraNonce := atomic.AddUint32(&b.ExtraNonce, 1)
extraBuff := new(bytes.Buffer)
binary.Write(extraBuff, binary.BigEndian, extraNonce)
blobBuff := make([]byte, len(b.Buffer))
copy(blobBuff, b.Buffer) // We never write to this buffer to prevent race
copy(blobBuff[b.ReservedOffset:], extraBuff.Bytes())
blob := cnutil.ConvertBlob(blobBuff)
return hex.EncodeToString(blob), extraNonce
}
func (s *StratumServer) fetchBlockTemplate() bool {
reply, err := s.rpc.GetBlockTemplate(8, s.config.Address)
if err != nil {
log.Printf("Error while refreshing block template: %s", err)
return false
}
t := s.currentBlockTemplate()
if t.PrevHash == reply.PrevHash {
// Fallback to height comparison
if len(reply.PrevHash) == 0 && reply.Height > t.Height {
log.Printf("New block to mine at height %v, diff: %v", reply.Height, reply.Difficulty)
} else {
return false
}
} else {
log.Printf("New block to mine at height %v, diff: %v, prev_hash: %s", reply.Height, reply.Difficulty, reply.PrevHash)
}
newTemplate := BlockTemplate{
Blob: reply.Blob,
Difficulty: reply.Difficulty,
Height: reply.Height,
PrevHash: reply.PrevHash,
ReservedOffset: reply.ReservedOffset,
}
newTemplate.Buffer, _ = hex.DecodeString(reply.Blob)
copy(newTemplate.Buffer[reply.ReservedOffset+4:reply.ReservedOffset+7], s.instanceId)
newTemplate.ExtraNonce = 0
s.blockTemplate.Store(&newTemplate)
return true
}

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package stratum
import (
"log"
"regexp"
"strings"
"../util"
)
var noncePattern *regexp.Regexp
func init() {
noncePattern, _ = regexp.Compile("^[0-9a-f]{8}$")
}
func (s *StratumServer) handleLoginRPC(cs *Session, params *LoginParams) (reply *JobReply, errorReply *ErrorReply) {
if !util.ValidateAddress(params.Login, s.config.Address) {
errorReply = &ErrorReply{Code: -1, Message: "Invalid address used for login", Close: true}
return
}
if !s.policy.ApplyLoginPolicy(params.Login, cs.ip) {
errorReply = &ErrorReply{Code: -1, Message: "Your address blacklisted", Close: true}
return
}
miner := NewMiner(params.Login, params.Pass, s.port.Difficulty, cs.ip)
miner.Session = cs
s.registerMiner(miner)
miner.heartbeat()
log.Printf("Miner connected %s@%s", params.Login, miner.IP)
reply = &JobReply{}
reply.Id = miner.Id
reply.Job = miner.getJob(s)
reply.Status = "OK"
return
}
func (s *StratumServer) handleGetJobRPC(cs *Session, params *GetJobParams) (reply *JobReplyData, errorReply *ErrorReply) {
miner, ok := s.miners.Get(params.Id)
if !ok {
errorReply = &ErrorReply{Code: -1, Message: "Unauthenticated", Close: true}
return
}
miner.heartbeat()
reply = miner.getJob(s)
return
}
func (s *StratumServer) handleSubmitRPC(cs *Session, params *SubmitParams) (reply *SubmitReply, errorReply *ErrorReply) {
miner, ok := s.miners.Get(params.Id)
if !ok {
errorReply = &ErrorReply{Code: -1, Message: "Unauthenticated", Close: true}
return
}
miner.heartbeat()
job := miner.findJob(params.JobId)
if job == nil {
errorReply = &ErrorReply{Code: -1, Message: "Invalid job id", Close: true}
return
}
if !noncePattern.MatchString(params.Nonce) {
errorReply = &ErrorReply{Code: -1, Message: "Malformed nonce", Close: true}
return
}
nonce := strings.ToLower(params.Nonce)
exist := job.submit(nonce)
if exist {
errorReply = &ErrorReply{Code: -1, Message: "Duplicate share", Close: true}
return
}
t := s.currentBlockTemplate()
if job.Height != t.Height {
log.Printf("Block expired for height %v %s@%s", job.Height, miner.Login, miner.IP)
errorReply = &ErrorReply{Code: -1, Message: "Block expired", Close: false}
return
}
validShare := miner.processShare(s, job, t, nonce, params.Result)
ok = s.policy.ApplySharePolicy(miner.IP, validShare)
if !validShare {
errorReply = &ErrorReply{Code: -1, Message: "Low difficulty share", Close: !ok}
return
}
reply = &SubmitReply{Status: "OK"}
return
}
func (s *StratumServer) handleUnknownRPC(cs *Session, req *JSONRpcReq) *ErrorReply {
log.Printf("Unknown RPC method: %v", req)
return &ErrorReply{Code: -1, Message: "Invalid method", Close: true}
}
func (s *StratumServer) broadcastNewJobs() {
log.Printf("Broadcasting new jobs to %v miners", s.miners.Count())
bcast := make(chan int, 1024)
n := 0
for m := range s.miners.IterBuffered() {
n++
bcast <- n
go func(miner *Miner) {
reply := miner.getJob(s)
err := miner.Session.pushMessage("job", &reply)
<-bcast
if err != nil {
log.Printf("Job transmit error to %v@%v: %v", miner.Login, miner.IP, err)
s.removeMiner(miner.Id)
}
}(m.Val)
}
}
func (s *StratumServer) refreshBlockTemplate(bcast bool) {
newBlock := s.fetchBlockTemplate()
if newBlock && bcast {
s.broadcastNewJobs()
}
}

143
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package stratum
import (
"bytes"
"encoding/binary"
"encoding/hex"
"log"
"sync"
"sync/atomic"
"../../cnutil"
"../../hashing"
"../util"
)
type Job struct {
sync.RWMutex
Id string
ExtraNonce uint32
Height int64
Difficulty int64
Submissions map[string]bool
}
type Miner struct {
sync.RWMutex
Id string
Login string
Pass string
IP string
Difficulty int64
ValidJobs []*Job
LastBlockHeight int64
Target uint32
TargetHex string
LastBeat int64
Session *Session
}
func (job *Job) submit(nonce string) bool {
job.Lock()
defer job.Unlock()
_, exist := job.Submissions[nonce]
if exist {
return true
}
job.Submissions[nonce] = true
return false
}
func NewMiner(login, pass string, diff int64, ip string) *Miner {
id := util.Random()
miner := &Miner{Id: id, Login: login, Pass: pass, Difficulty: diff, IP: ip}
target, targetHex := util.GetTargetHex(diff)
miner.Target = target
miner.TargetHex = targetHex
return miner
}
func (m *Miner) pushJob(job *Job) {
m.Lock()
defer m.Unlock()
m.ValidJobs = append(m.ValidJobs, job)
if len(m.ValidJobs) > 4 {
m.ValidJobs = m.ValidJobs[1:]
}
}
func (m *Miner) getJob(s *StratumServer) *JobReplyData {
t := s.currentBlockTemplate()
height := atomic.SwapInt64(&m.LastBlockHeight, t.Height)
if height == t.Height {
return &JobReplyData{}
}
blob, extraNonce := t.nextBlob()
job := &Job{Id: util.Random(), ExtraNonce: extraNonce, Height: t.Height, Difficulty: m.Difficulty}
job.Submissions = make(map[string]bool)
m.pushJob(job)
reply := &JobReplyData{JobId: job.Id, Blob: blob, Target: m.TargetHex}
return reply
}
func (m *Miner) heartbeat() {
now := util.MakeTimestamp()
atomic.StoreInt64(&m.LastBeat, now)
}
func (m *Miner) findJob(id string) *Job {
m.RLock()
defer m.RUnlock()
for _, job := range m.ValidJobs {
if job.Id == id {
return job
}
}
return nil
}
func (m *Miner) processShare(s *StratumServer, job *Job, t *BlockTemplate, nonce string, result string) bool {
shareBuff := make([]byte, len(t.Buffer))
copy(shareBuff, t.Buffer)
extraBuff := new(bytes.Buffer)
binary.Write(extraBuff, binary.BigEndian, job.ExtraNonce)
copy(shareBuff[t.ReservedOffset:], extraBuff.Bytes())
nonceBuff, _ := hex.DecodeString(nonce)
copy(shareBuff[39:], nonceBuff)
convertedBlob := cnutil.ConvertBlob(shareBuff)
hashBytes := hashing.Hash(convertedBlob, false)
if hex.EncodeToString(hashBytes) != result {
log.Printf("Bad hash from miner %v@%v", m.Login, m.IP)
return false
}
hashDiff := util.GetHashDifficulty(hashBytes).Int64() // FIXME: Will return max int64 value if overflows
block := hashDiff >= t.Difficulty
if block {
_, err := s.rpc.SubmitBlock(hex.EncodeToString(shareBuff))
if err != nil {
log.Printf("Block submission failure at height %v: %v", t.Height, err)
} else {
blockFastHash := hex.EncodeToString(hashing.FastHash(convertedBlob))
s.storage.WriteBlock(m.Login, job.Difficulty, t.Difficulty, t.Height, blockFastHash)
// Immediately refresh current BT and send new jobs
s.refreshBlockTemplate(true)
log.Printf("Block %v found at height %v by miner %v@%v", blockFastHash[0:6], t.Height, m.Login, m.IP)
}
} else if hashDiff < job.Difficulty {
log.Printf("Rejected low difficulty share of %v from %v@%v", hashDiff, m.Login, m.IP)
return false
} else {
s.storage.WriteShare(m.Login, job.Difficulty)
}
log.Printf("Valid share at difficulty %v/%v", s.port.Difficulty, hashDiff)
return true
}

136
go-pool/stratum/mmap.go Normal file
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// Generated from https://github.com/streamrail/concurrent-map
package stratum
import (
"hash/fnv"
"sync"
)
var SHARD_COUNT = 32
// TODO: Add Keys function which returns an array of keys for the map.
// A "thread" safe map of type string:*Miner.
// To avoid lock bottlenecks this map is dived to several (SHARD_COUNT) map shards.
type MinersMap []*MinersMapShared
type MinersMapShared struct {
items map[string]*Miner
sync.RWMutex // Read Write mutex, guards access to internal map.
}
// Creates a new concurrent map.
func NewMinersMap() MinersMap {
m := make(MinersMap, SHARD_COUNT)
for i := 0; i < SHARD_COUNT; i++ {
m[i] = &MinersMapShared{items: make(map[string]*Miner)}
}
return m
}
// Returns shard under given key
func (m MinersMap) GetShard(key string) *MinersMapShared {
hasher := fnv.New32()
hasher.Write([]byte(key))
return m[int(hasher.Sum32())%SHARD_COUNT]
}
// Sets the given value under the specified key.
func (m *MinersMap) Set(key string, value *Miner) {
// Get map shard.
shard := m.GetShard(key)
shard.Lock()
defer shard.Unlock()
shard.items[key] = value
}
// Retrieves an element from map under given key.
func (m MinersMap) Get(key string) (*Miner, bool) {
// Get shard
shard := m.GetShard(key)
shard.RLock()
defer shard.RUnlock()
// Get item from shard.
val, ok := shard.items[key]
return val, ok
}
// Returns the number of elements within the map.
func (m MinersMap) Count() int {
count := 0
for i := 0; i < SHARD_COUNT; i++ {
shard := m[i]
shard.RLock()
count += len(shard.items)
shard.RUnlock()
}
return count
}
// Looks up an item under specified key
func (m *MinersMap) Has(key string) bool {
// Get shard
shard := m.GetShard(key)
shard.RLock()
defer shard.RUnlock()
// See if element is within shard.
_, ok := shard.items[key]
return ok
}
// Removes an element from the map.
func (m *MinersMap) Remove(key string) {
// Try to get shard.
shard := m.GetShard(key)
shard.Lock()
defer shard.Unlock()
delete(shard.items, key)
}
// Checks if map is empty.
func (m *MinersMap) IsEmpty() bool {
return m.Count() == 0
}
// Used by the Iter & IterBuffered functions to wrap two variables together over a channel,
type Tuple struct {
Key string
Val *Miner
}
// Returns an iterator which could be used in a for range loop.
func (m MinersMap) Iter() <-chan Tuple {
ch := make(chan Tuple)
go func() {
// Foreach shard.
for _, shard := range m {
// Foreach key, value pair.
shard.RLock()
for key, val := range shard.items {
ch <- Tuple{key, val}
}
shard.RUnlock()
}
close(ch)
}()
return ch
}
// Returns a buffered iterator which could be used in a for range loop.
func (m MinersMap) IterBuffered() <-chan Tuple {
ch := make(chan Tuple, m.Count())
go func() {
// Foreach shard.
for _, shard := range m {
// Foreach key, value pair.
shard.RLock()
for key, val := range shard.items {
ch <- Tuple{key, val}
}
shard.RUnlock()
}
close(ch)
}()
return ch
}

271
go-pool/stratum/policy/policy.go Normal file
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package policy
import (
"fmt"
"log"
"os/exec"
"strings"
"sync"
"sync/atomic"
"time"
"../../pool"
"../../storage"
"../../util"
)
type Stats struct {
sync.Mutex
ValidShares uint32
InvalidShares uint32
Malformed uint32
ConnLimit int32
FailsCount uint32
LastBeat int64
Banned uint32
BannedAt int64
}
type PolicyServer struct {
sync.RWMutex
config *pool.Policy
stats StatsMap
banChannel chan string
startedAt int64
grace int64
timeout int64
blacklist []string
whitelist []string
storage *storage.RedisClient
}
func Start(cfg *pool.Config, storage *storage.RedisClient) *PolicyServer {
s := &PolicyServer{config: &cfg.Policy, startedAt: util.MakeTimestamp()}
grace, _ := time.ParseDuration(cfg.Policy.Limits.Grace)
s.grace = int64(grace / time.Millisecond)
s.banChannel = make(chan string, 64)
s.stats = NewStatsMap()
s.storage = storage
s.refreshState()
timeout, _ := time.ParseDuration(s.config.ResetInterval)
s.timeout = int64(timeout / time.Millisecond)
resetIntv, _ := time.ParseDuration(s.config.ResetInterval)
resetTimer := time.NewTimer(resetIntv)
log.Printf("Set policy stats reset every %v", resetIntv)
refreshIntv, _ := time.ParseDuration(s.config.RefreshInterval)
refreshTimer := time.NewTimer(refreshIntv)
log.Printf("Set policy state refresh every %v", refreshIntv)
go func() {
for {
select {
case <-resetTimer.C:
s.resetStats()
resetTimer.Reset(resetIntv)
case <-refreshTimer.C:
s.refreshState()
refreshTimer.Reset(refreshIntv)
}
}
}()
for i := 0; i < s.config.Workers; i++ {
s.startPolicyWorker()
}
log.Printf("Running with %v policy workers", s.config.Workers)
return s
}
func (s *PolicyServer) startPolicyWorker() {
go func() {
for {
select {
case ip := <-s.banChannel:
s.doBan(ip)
}
}
}()
}
func (s *PolicyServer) resetStats() {
now := util.MakeTimestamp()
banningTimeout := s.config.Banning.Timeout * 1000
total := 0
for m := range s.stats.IterBuffered() {
lastBeat := atomic.LoadInt64(&m.Val.LastBeat)
bannedAt := atomic.LoadInt64(&m.Val.BannedAt)
if now-bannedAt >= banningTimeout {
atomic.StoreInt64(&m.Val.BannedAt, 0)
if atomic.CompareAndSwapUint32(&m.Val.Banned, 1, 0) {
log.Printf("Ban dropped for %v", m.Key)
}
}
if now-lastBeat >= s.timeout {
s.stats.Remove(m.Key)
total++
}
}
log.Printf("Flushed stats for %v IP addresses", total)
}
func (s *PolicyServer) refreshState() {
s.Lock()
defer s.Unlock()
s.blacklist = s.storage.GetBlacklist()
s.whitelist = s.storage.GetWhitelist()
log.Println("Policy state refresh complete")
}
func (s *PolicyServer) NewStats() *Stats {
x := &Stats{
ConnLimit: s.config.Limits.Limit,
Malformed: s.config.Banning.MalformedLimit,
}
x.heartbeat()
return x
}
func (s *PolicyServer) Get(ip string) *Stats {
if x, ok := s.stats.Get(ip); ok {
x.heartbeat()
return x
}
x := s.NewStats()
s.stats.Set(ip, x)
return x
}
func (s *PolicyServer) ApplyLimitPolicy(ip string) bool {
if !s.config.Limits.Enabled {
return true
}
now := util.MakeTimestamp()
if now-s.startedAt > s.grace {
return s.Get(ip).decrLimit() > 0
}
return true
}
func (s *PolicyServer) ApplyLoginPolicy(addy, ip string) bool {
if s.InBlackList(addy) {
x := s.Get(ip)
s.forceBan(x, ip)
return false
}
return true
}
func (s *PolicyServer) ApplyMalformedPolicy(ip string) {
x := s.Get(ip)
n := x.incrMalformed()
if n >= s.config.Banning.MalformedLimit {
s.forceBan(x, ip)
}
}
func (s *PolicyServer) ApplySharePolicy(ip string, validShare bool) bool {
x := s.Get(ip)
if validShare && s.config.Limits.Enabled {
s.Get(ip).incrLimit(s.config.Limits.LimitJump)
}
x.Lock()
if validShare {
x.ValidShares++
if s.config.Limits.Enabled {
x.incrLimit(s.config.Limits.LimitJump)
}
} else {
x.InvalidShares++
}
totalShares := x.ValidShares + x.InvalidShares
if totalShares < s.config.Banning.CheckThreshold {
x.Unlock()
return true
}
validShares := float32(x.ValidShares)
invalidShares := float32(x.InvalidShares)
x.resetShares()
x.Unlock()
if invalidShares == 0 {
return true
}
// Can be +Inf or value, previous check prevents NaN
ratio := invalidShares / validShares
if ratio >= s.config.Banning.InvalidPercent/100.0 {
s.forceBan(x, ip)
return false
}
return true
}
func (x *Stats) resetShares() {
x.ValidShares = 0
x.InvalidShares = 0
}
func (s *PolicyServer) forceBan(x *Stats, ip string) {
if !s.config.Banning.Enabled || s.InWhiteList(ip) {
return
}
if atomic.CompareAndSwapUint32(&x.Banned, 0, 1) {
if len(s.config.Banning.IPSet) > 0 {
s.banChannel <- ip
}
}
}
func (x *Stats) incrLimit(n int32) {
atomic.AddInt32(&x.ConnLimit, n)
}
func (x *Stats) incrMalformed() uint32 {
return atomic.AddUint32(&x.Malformed, 1)
}
func (x *Stats) decrLimit() int32 {
return atomic.AddInt32(&x.ConnLimit, -1)
}
func (s *PolicyServer) InBlackList(addy string) bool {
s.RLock()
defer s.RUnlock()
return util.StringInSlice(addy, s.blacklist)
}
func (s *PolicyServer) InWhiteList(ip string) bool {
s.RLock()
defer s.RUnlock()
return util.StringInSlice(ip, s.whitelist)
}
func (s *PolicyServer) doBan(ip string) {
set, timeout := s.config.Banning.IPSet, s.config.Banning.Timeout
cmd := fmt.Sprintf("sudo ipset add %s %s timeout %v -!", set, ip, timeout)
args := strings.Fields(cmd)
head := args[0]
args = args[1:]
log.Printf("Banned %v with timeout %v", ip, timeout)
_, err := exec.Command(head, args...).Output()
if err != nil {
log.Printf("CMD Error: %s", err)
}
}
func (x *Stats) heartbeat() {
now := util.MakeTimestamp()
atomic.StoreInt64(&x.LastBeat, now)
}

136
go-pool/stratum/policy/smap.go Normal file
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// Generated from https://github.com/streamrail/concurrent-map
package policy
import (
"hash/fnv"
"sync"
)
var SHARD_COUNT = 32
// TODO: Add Keys function which returns an array of keys for the map.
// A "thread" safe map of type string:*Stats.
// To avoid lock bottlenecks this map is dived to several (SHARD_COUNT) map shards.
type StatsMap []*StatsMapShared
type StatsMapShared struct {
items map[string]*Stats
sync.RWMutex // Read Write mutex, guards access to internal map.
}
// Creates a new concurrent map.
func NewStatsMap() StatsMap {
m := make(StatsMap, SHARD_COUNT)
for i := 0; i < SHARD_COUNT; i++ {
m[i] = &StatsMapShared{items: make(map[string]*Stats)}
}
return m
}
// Returns shard under given key
func (m StatsMap) GetShard(key string) *StatsMapShared {
hasher := fnv.New32()
hasher.Write([]byte(key))
return m[int(hasher.Sum32())%SHARD_COUNT]
}
// Sets the given value under the specified key.
func (m *StatsMap) Set(key string, value *Stats) {
// Get map shard.
shard := m.GetShard(key)
shard.Lock()
defer shard.Unlock()
shard.items[key] = value
}
// Retrieves an element from map under given key.
func (m StatsMap) Get(key string) (*Stats, bool) {
// Get shard
shard := m.GetShard(key)
shard.RLock()
defer shard.RUnlock()
// Get item from shard.
val, ok := shard.items[key]
return val, ok
}
// Returns the number of elements within the map.
func (m StatsMap) Count() int {
count := 0
for i := 0; i < SHARD_COUNT; i++ {
shard := m[i]
shard.RLock()
count += len(shard.items)
shard.RUnlock()
}
return count
}
// Looks up an item under specified key
func (m *StatsMap) Has(key string) bool {
// Get shard
shard := m.GetShard(key)
shard.RLock()
defer shard.RUnlock()
// See if element is within shard.
_, ok := shard.items[key]
return ok
}
// Removes an element from the map.
func (m *StatsMap) Remove(key string) {
// Try to get shard.
shard := m.GetShard(key)
shard.Lock()
defer shard.Unlock()
delete(shard.items, key)
}
// Checks if map is empty.
func (m *StatsMap) IsEmpty() bool {
return m.Count() == 0
}
// Used by the Iter & IterBuffered functions to wrap two variables together over a channel,
type Tuple struct {
Key string
Val *Stats
}
// Returns an iterator which could be used in a for range loop.
func (m StatsMap) Iter() <-chan Tuple {
ch := make(chan Tuple)
go func() {
// Foreach shard.
for _, shard := range m {
// Foreach key, value pair.
shard.RLock()
for key, val := range shard.items {
ch <- Tuple{key, val}
}
shard.RUnlock()
}
close(ch)
}()
return ch
}
// Returns a buffered iterator which could be used in a for range loop.
func (m StatsMap) IterBuffered() <-chan Tuple {
ch := make(chan Tuple, m.Count())
go func() {
// Foreach shard.
for _, shard := range m {
// Foreach key, value pair.
shard.RLock()
for key, val := range shard.items {
ch <- Tuple{key, val}
}
shard.RUnlock()
}
close(ch)
}()
return ch
}

61
go-pool/stratum/proto.go Normal file
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package stratum
import "encoding/json"
type JSONRpcReq struct {
Id *json.RawMessage `json:"id"`
Method string `json:"method"`
Params *json.RawMessage `json:"params"`
}
type JSONRpcResp struct {
Id *json.RawMessage `json:"id"`
Version string `json:"jsonrpc"`
Result interface{} `json:"result"`
Error interface{} `json:"error"`
}
type JSONPushMessage struct {
Version string `json:"jsonrpc"`
Method string `json:"method"`
Params interface{} `json:"params"`
}
type LoginParams struct {
Login string `json:"login"`
Pass string `json:"pass"`
Agent string `json:"agent"`
}
type GetJobParams struct {
Id string `json:"id"`
}
type SubmitParams struct {
Id string `json:"id"`
JobId string `json:"job_id"`
Nonce string `json:"nonce"`
Result string `json:"result"`
}
type JobReply struct {
Id string `json:"id"`
Job *JobReplyData `json:"job"`
Status string `json:"status"`
}
type JobReplyData struct {
Blob string `json:"blob"`
JobId string `json:"job_id"`
Target string `json:"target"`
}
type SubmitReply struct {
Status string `json:"status"`
}
type ErrorReply struct {
Code int `json:"code"`
Message string `json:"message"`
Close bool `json:"-"`
}

262
go-pool/stratum/stratum.go Normal file
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package stratum
import (
"bufio"
"crypto/rand"
"encoding/json"
"errors"
"fmt"
"io"
"log"
"net"
"sync"
"sync/atomic"
"time"
"../pool"
"../rpc"
"../storage"
"./policy"
)
type StratumServer struct {
config *pool.Config
port pool.Port
miners MinersMap
blockTemplate atomic.Value
instanceId []byte
rpc *rpc.RPCClient
timeout time.Duration
broadcastTimer *time.Timer
storage *storage.RedisClient
policy *policy.PolicyServer
}
type Session struct {
sync.Mutex
conn *net.TCPConn
enc *json.Encoder
ip string
}
const (
MaxReqSize = 10 * 1024
)
func NewStratum(cfg *pool.Config, port pool.Port, storage *storage.RedisClient, policy *policy.PolicyServer) *StratumServer {
b := make([]byte, 4)
_, err := rand.Read(b)
if err != nil {
log.Fatalf("Can't seed with random bytes: %v", err)
}
stratum := &StratumServer{config: cfg, port: port, policy: policy, instanceId: b}
stratum.rpc = rpc.NewRPCClient(cfg)
stratum.miners = NewMinersMap()
stratum.storage = storage
timeout, _ := time.ParseDuration(cfg.Stratum.Timeout)
stratum.timeout = timeout
// Init block template
stratum.blockTemplate.Store(&BlockTemplate{})
stratum.refreshBlockTemplate(false)
refreshIntv, _ := time.ParseDuration(cfg.Stratum.BlockRefreshInterval)
refreshTimer := time.NewTimer(refreshIntv)
log.Printf("Set block refresh every %v", refreshIntv)
go func() {
for {
select {
case <-refreshTimer.C:
stratum.refreshBlockTemplate(true)
refreshTimer.Reset(refreshIntv)
}
}
}()
return stratum
}
func (s *StratumServer) Listen() {
bindAddr := fmt.Sprintf("%s:%d", s.port.Host, s.port.Port)
addr, err := net.ResolveTCPAddr("tcp", bindAddr)
checkError(err)
server, err := net.ListenTCP("tcp", addr)
checkError(err)
defer server.Close()
log.Printf("Stratum listening on %s", bindAddr)
var accept = make(chan int, s.port.MaxConn)
n := 0
for {
conn, err := server.AcceptTCP()
conn.SetKeepAlive(true)
checkError(err)
ip, _, _ := net.SplitHostPort(conn.RemoteAddr().String())
ok := s.policy.ApplyLimitPolicy(ip)
if !ok {
conn.Close()
continue
}
n += 1
accept <- n
go func() {
err = s.handleClient(conn, ip)
if err != nil {
conn.Close()
}
<-accept
}()
}
}
func (s *StratumServer) handleClient(conn *net.TCPConn, ip string) error {
cs := &Session{conn: conn, ip: ip}
cs.enc = json.NewEncoder(conn)
connbuff := bufio.NewReaderSize(conn, MaxReqSize)
s.setDeadline(conn)
for {
data, isPrefix, err := connbuff.ReadLine()
if isPrefix {
log.Printf("Socket flood detected")
// TODO: Ban client
return errors.New("Socket flood")
} else if err == io.EOF {
log.Printf("Client disconnected")
break
} else if err != nil {
log.Printf("Error reading: %v", err)
return err
}
// NOTICE: cpuminer-multi sends junk newlines, so we demand at least 1 byte for decode
// NOTICE: Ns*CNMiner.exe will send malformed JSON on very low diff, not sure we should handle this
if len(data) > 1 {
var req JSONRpcReq
err = json.Unmarshal(data, &req)
if err != nil {
s.policy.ApplyMalformedPolicy(ip)
log.Printf("Malformed request: %v", err)
return err
}
s.setDeadline(conn)
cs.handleMessage(s, &req)
}
}
return nil
}
func (cs *Session) handleMessage(s *StratumServer, req *JSONRpcReq) {
if req.Id == nil {
log.Println("Missing RPC id")
cs.conn.Close()
return
} else if req.Params == nil {
log.Println("Missing RPC params")
cs.conn.Close()
return
}
var err error
// Handle RPC methods
switch req.Method {
case "login":
var params LoginParams
err = json.Unmarshal(*req.Params, &params)
if err != nil {
log.Println("Unable to parse params")
break
}
reply, errReply := s.handleLoginRPC(cs, &params)
if errReply != nil {
err = cs.sendError(req.Id, errReply)
break
}
err = cs.sendResult(req.Id, &reply)
case "getjob":
var params GetJobParams
err = json.Unmarshal(*req.Params, &params)
if err != nil {
log.Println("Unable to parse params")
break
}
reply, errReply := s.handleGetJobRPC(cs, &params)
if errReply != nil {
err = cs.sendError(req.Id, errReply)
break
}
err = cs.sendResult(req.Id, &reply)
case "submit":
var params SubmitParams
err := json.Unmarshal(*req.Params, &params)
if err != nil {
log.Println("Unable to parse params")
break
}
reply, errReply := s.handleSubmitRPC(cs, &params)
if errReply != nil {
err = cs.sendError(req.Id, errReply)
break
}
err = cs.sendResult(req.Id, &reply)
default:
errReply := s.handleUnknownRPC(cs, req)
err = cs.sendError(req.Id, errReply)
}
if err != nil {
cs.conn.Close()
}
}
func (cs *Session) sendResult(id *json.RawMessage, result interface{}) error {
cs.Lock()
defer cs.Unlock()
message := JSONRpcResp{Id: id, Version: "2.0", Error: nil, Result: result}
return cs.enc.Encode(&message)
}
func (cs *Session) pushMessage(method string, params interface{}) error {
cs.Lock()
defer cs.Unlock()
message := JSONPushMessage{Version: "2.0", Method: method, Params: params}
return cs.enc.Encode(&message)
}
func (cs *Session) sendError(id *json.RawMessage, reply *ErrorReply) error {
cs.Lock()
defer cs.Unlock()
message := JSONRpcResp{Id: id, Version: "2.0", Error: reply}
err := cs.enc.Encode(&message)
if reply.Close {
return errors.New("Force close")
}
return err
}
func (s *StratumServer) setDeadline(conn *net.TCPConn) {
conn.SetDeadline(time.Now().Add(s.timeout))
}
func (s *StratumServer) registerMiner(miner *Miner) {
s.miners.Set(miner.Id, miner)
}
func (s *StratumServer) removeMiner(id string) {
s.miners.Remove(id)
}
func (s *StratumServer) currentBlockTemplate() *BlockTemplate {
return s.blockTemplate.Load().(*BlockTemplate)
}
func checkError(err error) {
if err != nil {
log.Fatalf("Error: %v", err)
}
}

87
go-pool/util/util.go Normal file
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package util
import (
"bytes"
"encoding/binary"
"encoding/hex"
"math/big"
"math/rand"
"strconv"
"time"
"unicode/utf8"
"../../cnutil"
)
var Diff1 *big.Int
func init() {
Diff1 = new(big.Int)
Diff1.SetString("FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", 16)
}
func Random() string {
min := int64(100000000000000)
max := int64(999999999999999)
n := rand.Int63n(max-min+1) + min
return strconv.FormatInt(n, 10)
}
func MakeTimestamp() int64 {
return time.Now().UnixNano() / int64(time.Millisecond)
}
func GetTargetHex(diff int64) (uint32, string) {
padded := make([]byte, 32)
diff2 := new(big.Int)
diff2.SetInt64(int64(diff))
diff3 := new(big.Int)
diff3 = diff3.Div(Diff1, diff2)
diffBuff := diff3.Bytes()
copy(padded[32-len(diffBuff):], diffBuff)
buff := padded[0:4]
var target uint32
targetBuff := bytes.NewReader(buff)
binary.Read(targetBuff, binary.LittleEndian, &target)
targetHex := hex.EncodeToString(reverse(buff))
return target, targetHex
}
func GetHashDifficulty(hashBytes []byte) *big.Int {
diff := new(big.Int)
diff.SetBytes(reverse(hashBytes))
return diff.Div(Diff1, diff)
}
func ValidateAddress(addy string, poolAddy string) bool {
if len(addy) != len(poolAddy) {
return false
}
prefix, _ := utf8.DecodeRuneInString(addy)
poolPrefix, _ := utf8.DecodeRuneInString(poolAddy)
if prefix != poolPrefix {
return false
}
return cnutil.ValidateAddress(addy)
}
func StringInSlice(a string, list []string) bool {
for _, b := range list {
if b == a {
return true
}
}
return false
}
func reverse(src []byte) []byte {
dst := make([]byte, len(src))
for i := len(src); i > 0; i-- {
dst[len(src)-i] = src[i-1]
}
return dst
}

41
go-pool/util/util_test.go Normal file
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package util
import (
"encoding/hex"
"math/big"
"testing"
)
func TestGetTargetHex(t *testing.T) {
target, targetHex := GetTargetHex(500)
expectedTarget := uint32(1846706944)
expectedHex := "6e128300"
if target != expectedTarget {
t.Error("Invalid target")
}
if targetHex != expectedHex {
t.Error("Invalid targetHex")
}
target, targetHex = GetTargetHex(15000)
expectedTarget = uint32(2069758976)
expectedHex = "7b5e0400"
if target != expectedTarget {
t.Error("Invalid target")
}
if targetHex != expectedHex {
t.Error("Invalid targetHex")
}
}
func TestGetHashDifficulty(t *testing.T) {
hash := "8e3c1865f22801dc3df0a688da80701e2390e7838e65c142604cc00eafe34000"
hashBytes, _ := hex.DecodeString(hash)
diff := new(big.Int)
diff.SetBytes(reverse(hashBytes))
shareDiff := GetHashDifficulty(hashBytes)
if shareDiff.String() != "1009" {
t.Error("Invalid diff")
}
}

5
hashing/.gitignore vendored Normal file
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@ -0,0 +1,5 @@
Makefile
CmakeCache.txt
cmake_install.cmake
CMakeFiles
libhashing.a

11
hashing/CMakeLists.txt Normal file
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@ -0,0 +1,11 @@
set(LIB "hashing")
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -std=c11 -D_GNU_SOURCE")
include_directories("${MONERO_DIR}/contrib/epee/include")
include_directories("${MONERO_DIR}/src")
add_library(${LIB} SHARED src/hashing.c)
target_link_libraries(${LIB}
${MONERO_DIR}/build/release/src/crypto/libcrypto.a
)

23
hashing/hashing.go Normal file
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package hashing
// #cgo CFLAGS: -std=c11 -D_GNU_SOURCE
// #cgo LDFLAGS: -L. -lhashing -lstdc++
// #include <stdlib.h>
// #include <stdint.h>
// #include "src/hashing.h"
import "C"
import "unsafe"
func Hash(blob []byte, fast bool) []byte {
output := make([]byte, 32)
if fast {
C.cryptonight_fast_hash((*C.char)(unsafe.Pointer(&blob[0])), (*C.char)(unsafe.Pointer(&output[0])), (C.uint32_t)(len(blob)))
} else {
C.cryptonight_hash((*C.char)(unsafe.Pointer(&blob[0])), (*C.char)(unsafe.Pointer(&output[0])), (C.uint32_t)(len(blob)))
}
return output
}
func FastHash(blob []byte) []byte {
return Hash(append([]byte{byte(len(blob))}, blob...), true)
}

82
hashing/hashing_test.go Normal file
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package hashing
import "testing"
import "log"
import "encoding/hex"
func TestHash(t *testing.T) {
blob, _ := hex.DecodeString("01009091e4aa05ff5fe4801727ed0c1b8b339e1a0054d75568fec6ba9c4346e88b10d59edbf6858b2b00008a63b2865b65b84d28bb31feb057b16a21e2eda4bf6cc6377e3310af04debe4a01")
hashBytes := Hash(blob, false)
hash := hex.EncodeToString(hashBytes)
log.Println(hash)
expectedHash := "a70a96f64a266f0f59e4f67c4a92f24fe8237c1349f377fd2720c9e1f2970400"
if hash != expectedHash {
t.Error("Invalid hash")
}
}
func TestHash_fast(t *testing.T) {
blob, _ := hex.DecodeString("01009091e4aa05ff5fe4801727ed0c1b8b339e1a0054d75568fec6ba9c4346e88b10d59edbf6858b2b00008a63b2865b65b84d28bb31feb057b16a21e2eda4bf6cc6377e3310af04debe4a01")
hashBytes := Hash(blob, true)
hash := hex.EncodeToString(hashBytes)
log.Println(hash)
expectedHash := "7591f4d8ff9d86ea44873e89a5fb6f380f4410be6206030010567ac9d0d4b0e1"
if hash != expectedHash {
t.Error("Invalid fast hash")
}
}
func TestFastHash(t *testing.T) {
blob, _ := hex.DecodeString("01009091e4aa05ff5fe4801727ed0c1b8b339e1a0054d75568fec6ba9c4346e88b10d59edbf6858b2b00008a63b2865b65b84d28bb31feb057b16a21e2eda4bf6cc6377e3310af04debe4a01")
hashBytes := FastHash(blob)
hash := hex.EncodeToString(hashBytes)
log.Println(hash)
expectedHash := "8706c697d9fc8a48b14ea93a31c6f0750c48683e585ec1a534e9c57c97193fa6"
if hash != expectedHash {
t.Error("Invalid fast hash")
}
}
func BenchmarkHash(b *testing.B) {
blob, _ := hex.DecodeString("0100b69bb3aa050a3106491f858f8646d3a8d13fd9924403bf07af95e6e7cc9e4ad105d76da27241565555866b1baa9db8f027cf57cd45d6835c11287b210d9ddb407deda565f8112e19e501")
b.ResetTimer()
for i := 0; i < b.N; i++ {
Hash(blob, false)
}
}
func BenchmarkHashParallel(b *testing.B) {
blob, _ := hex.DecodeString("0100b69bb3aa050a3106491f858f8646d3a8d13fd9924403bf07af95e6e7cc9e4ad105d76da27241565555866b1baa9db8f027cf57cd45d6835c11287b210d9ddb407deda565f8112e19e501")
b.ResetTimer()
b.RunParallel(func(pb *testing.PB) {
for pb.Next() {
Hash(blob, false)
}
})
}
func BenchmarkHash_fast(b *testing.B) {
blob, _ := hex.DecodeString("0100b69bb3aa050a3106491f858f8646d3a8d13fd9924403bf07af95e6e7cc9e4ad105d76da27241565555866b1baa9db8f027cf57cd45d6835c11287b210d9ddb407deda565f8112e19e501")
b.ResetTimer()
for i := 0; i < b.N; i++ {
Hash(blob, true)
}
}
func BenchmarkFastHash(b *testing.B) {
blob, _ := hex.DecodeString("0100b69bb3aa050a3106491f858f8646d3a8d13fd9924403bf07af95e6e7cc9e4ad105d76da27241565555866b1baa9db8f027cf57cd45d6835c11287b210d9ddb407deda565f8112e19e501")
b.ResetTimer()
for i := 0; i < b.N; i++ {
FastHash(blob)
}
}

12
hashing/src/hashing.c Normal file
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#include <assert.h>
#define static_assert _Static_assert
#include "crypto/hash-ops.h"
void cryptonight_hash(const char* input, char* output, uint32_t len) {
cn_slow_hash(input, len, output);
}
void cryptonight_fast_hash(const char* input, char* output, uint32_t len) {
cn_fast_hash(input, len, output);
}

2
hashing/src/hashing.h Normal file
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void cryptonight_hash(const char* input, char* output, uint32_t len);
void cryptonight_fast_hash(const char* input, char* output, uint32_t len);

3
linux-run.sh Executable file
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#!/bin/bash
LD_LIBRARY_PATH="/usr/local/lib/" go run main.go $@

83
main.go Normal file
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package main
import (
"encoding/json"
"log"
"math/rand"
"os"
"path/filepath"
"runtime"
"time"
"./go-pool/pool"
"./go-pool/storage"
"./go-pool/stratum"
"./go-pool/stratum/policy"
"github.com/yvasiyarov/gorelic"
)
var cfg pool.Config
func startStratum() {
if cfg.Threads > 0 {
runtime.GOMAXPROCS(cfg.Threads)
log.Printf("Running with %v threads", cfg.Threads)
} else {
n := runtime.NumCPU()
runtime.GOMAXPROCS(n)
log.Printf("Running with default %v threads", n)
}
storage := storage.NewRedisClient(&cfg.Redis, cfg.Coin)
storage.Check()
policy := policy.Start(&cfg, storage)
quit := make(chan bool)
for _, port := range cfg.Stratum.Ports {
s := stratum.NewStratum(&cfg, port, storage, policy)
go func() {
s.Listen()
quit <- true
}()
}
<-quit
}
func startNewrelic() {
// Run NewRelic
if cfg.NewrelicEnabled {
nr := gorelic.NewAgent()
nr.Verbose = cfg.NewrelicVerbose
nr.NewrelicLicense = cfg.NewrelicKey
nr.NewrelicName = cfg.NewrelicName
nr.Run()
}
}
func readConfig(cfg *pool.Config) {
configFileName := "config.json"
if len(os.Args) > 1 {
configFileName = os.Args[1]
}
configFileName, _ = filepath.Abs(configFileName)
log.Printf("Loading config: %v", configFileName)
configFile, err := os.Open(configFileName)
if err != nil {
log.Fatal("File error: ", err.Error())
}
defer configFile.Close()
jsonParser := json.NewDecoder(configFile)
if err = jsonParser.Decode(&cfg); err != nil {
log.Fatal("Config error: ", err.Error())
}
}
func main() {
rand.Seed(time.Now().UTC().UnixNano())
readConfig(&cfg)
startNewrelic()
startStratum()
}

3
osx-debug.fish Executable file
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#!/usr/bin/env fish
env GORACE="log_path=race.log" env CGO_LDFLAGS="-L"(pwd)"/cnutil -L"(pwd)"/hashing" go run -race main.go $argv

3
osx-run.fish Executable file
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@ -0,0 +1,3 @@
#!/usr/bin/env fish
env CGO_LDFLAGS="-L"(pwd)"/cnutil -L"(pwd)"/hashing" go run main.go $argv