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fpga-miner.c
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fpga-miner.c
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/*
* Copyright 2010 Jeff Garzik
* Copyright 2012-2014 pooler
* Copyright 2014 Lucas Jones
* Copyright 2014 Tanguy Pruvot
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the Free
* Software Foundation; either version 2 of the License, or (at your option)
* any later version. See COPYING for more details.
*/
#define _GNU_SOURCE
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdbool.h>
#include <inttypes.h>
#include <unistd.h>
#include <sys/time.h>
#include <time.h>
#include <signal.h>
#include <curl/curl.h>
#include <jansson.h>
#include <getopt.h>
#ifdef _MSC_VER
#include <windows.h>
#include <stdint.h>
#else
#include <errno.h>
#if HAVE_SYS_SYSCTL_H
#include <sys/types.h>
#if HAVE_SYS_PARAM_H
#include <sys/param.h>
#endif
#include <sys/sysctl.h>
#endif
#endif
#ifndef WIN32
#include <sys/resource.h>
#endif
#include "miner.h"
#ifdef WIN32
#include "compat/winansi.h"
#endif
#ifdef _MSC_VER
#include <Mmsystem.h>
#pragma comment(lib, "winmm.lib")
#endif
#define LP_SCANTIME 60
enum workio_commands {
WC_GET_WORK,
WC_SUBMIT_WORK,
};
struct workio_cmd {
enum workio_commands cmd;
struct thr_info *thr;
union {
struct work *work;
} u;
};
enum algos {
ALGO_DMD_GR, // Groestl (double SHA256 on merkle)
ALGO_GROESTL, // Groestl (single SHA256 on merkle)
ALGO_MYR_GR, // Myriad Groestl (double SHA256 on merkle)
ALGO_BLAKECOIN, // Blake 256 - 8 Rounds (single SHA256 on merkle)
ALGO_VCASH, // Blake 256 - 8 Rounds (double SHA256 on merkle)
ALGO_BLAKE2S, // Blake2s
ALGO_COUNT
};
static const char *algo_names[] = {
"dmd-gr",
"groestl",
"myr-gr",
"blakecoin",
"vcash",
"blake2s",
"\0"
};
bool opt_debug = false;
bool opt_protocol = false;
bool opt_redirect = true;
bool opt_extranonce = true;
bool want_longpoll = true;
bool have_longpoll = false;
bool have_gbt = true;
bool allow_getwork = true;
bool want_stratum = true;
bool have_stratum = false;
bool allow_mininginfo = true;
bool use_colors = true;
bool opt_quiet = false;
static int opt_retries = -1;
static int opt_fail_pause = 10;
int opt_timeout = 300;
static int opt_scantime = 5;
static const bool opt_time = true;
static enum algos opt_algo = ALGO_GROESTL;
int opt_n_threads = 0;
int opt_affinity = -1;
int opt_priority = 0;
int num_cpus;
char *rpc_url;
char *rpc_userpass;
char *rpc_user, *rpc_pass;
char *short_url = NULL;
static unsigned char pk_script[25] = { 0 };
static size_t pk_script_size = 0;
static char coinbase_sig[101] = { 0 };
char *opt_cert;
char *opt_proxy;
long opt_proxy_type;
struct thr_info *thr_info;
int work_thr_id;
int longpoll_thr_id = -1;
int stratum_thr_id = -1;
int api_thr_id = -1;
bool stratum_need_reset = false;
struct work_restart *work_restart = NULL;
struct stratum_ctx stratum;
bool jsonrpc_2 = false;
char rpc2_id[64] = "";
char *rpc2_blob = NULL;
size_t rpc2_bloblen = 0;
uint32_t rpc2_target = 0;
char *rpc2_job_id = NULL;
bool aes_ni_supported = false;
double opt_diff_factor = 1.0;
pthread_mutex_t rpc2_job_lock;
pthread_mutex_t rpc2_login_lock;
pthread_mutex_t applog_lock;
pthread_mutex_t stats_lock;
uint32_t accepted_count = 0L;
uint32_t rejected_count = 0L;
double *thr_hashrates;
uint64_t global_hashrate = 0;
double stratum_diff = 0.;
double net_diff = 0.;
double net_hashrate = 0.;
uint64_t net_blocks = 0;
uint32_t opt_work_size = 0; /* default */
char *opt_api_allow = NULL;
int opt_api_remote = 0;
int opt_api_listen = 4048; /* 0 to disable */
//
// Begin FPGA
//
bool opt_use_cpu = false;
bool opt_use_serial = false;
bool opt_use_ztex = false;
bool opt_auto_freq = false;
bool opt_fpga_summary = false;
bool opt_firmware = false;
int g_miner_count;
int g_fpga_count;
int g_serial_fpga_count;
int g_ztex_fpga_count;
int g_serial_device_count;
int g_ztex_freq = 24; // Default = 100 Mhz
int g_fpga_work_len = 80;
bool g_fpga_use_midstate = false;
int g_block_count = 0;
double g_net_diff = 0.0;
int g_serial_device_count;
char* serial_fpga_list[MAX_SERIAL_DEVICES];
struct libztex_device *ztex_info;
struct timeval g_miner_start_time;
//
// End FPGA
//
static char const usage[] = "\
Usage: " PACKAGE_NAME " [OPTIONS]\n\
Options:\n\
-a, --algo <algo> The mining algorithm to use\n\
blake2s Blake2s\n\
blakecoin Blake256 - 8 Rounds\n\
dmd-gr Diamond-Groestl\n\
groestl GroestlCoin\n\
myr-gr Myriad-Groestl\n\
vcash Blake256 - 8 Rounds\n\
-o, --url=URL URL of mining server\n\
-O, --userpass <u:p> Username:password pair for mining server\n\
-u, --user <username> Username for mining server\n\
-p, --pass <password> Password for mining server\n\
--cert <file> Certificate for mining server using SSL\n\
-x, --proxy [PROTOCOL://]HOST[:PORT] connect through a proxy\n\
-t, --threads <n> Number of miner threads (Default: Number of CPUs)\n\
-r, --retries <n> Number of times to retry if a network call fails\n\
(Default: Retry indefinitely)\n\
-R, --retry-pause <n> Time to pause between retries (Default: 30 sec)\n\
-T, --timeout <n> Timeout for longpoll and stratum (Default: 300 sec)\n\
-s, --scan-time <n> Max time to scan work for nonces (Default: 5 sec)\n\
-S, --scan-serial Serial port of Serial FPGA, (\\\\.\\COM1,\\\\.\\COM2,etc)\n\
-f, --diff-factor Divide target diff by this factor (Default: 1.0)\n\
-m, --diff-multiplier Multiply target diff by this factor (Default: 1.0)\n\
--coinbase-addr <addr> Payout address for solo mining\n\
--coinbase-sig <text> Data to insert in the coinbase when possible\n\
--no-longpoll Disable long polling support\n\
--no-getwork Disable getwork support\n\
--no-gbt Disable getblocktemplate support\n\
--no-stratum Disable X-Stratum support\n\
--no-extranonce Disable Stratum extranonce support\n\
--no-redirect Ignore request to change URL of the mining server\n\
-q, --quiet Display minimal output\n\
--no-color Don't display colored output\n\
-D, --debug Display debug output\n\
-P, --protocol-dump Display dump of protocol-level activities\n\
--cpu-affinity Set process affinity to cpu core(s)\n\
--cpu-priority Set process priority (default: 0 idle to 5 highest)\n\
-b, --api-bind IP/Port for the miner API (default: 127.0.0.1:4048)\n\
--api-remote Allow remote control\n\
-c, --config <file> Use JSON-formated configuration file\n\
-C, --cpu Use CPU for mining\n\
-V, --version Display version information and exit\n\
-z, --ztex <freqency> Use ZTEX FPGA for mining (Clock frequency in Mhz)\n\
--auto-freq Automatically adjust ZTEX chip frequency\n\
-F, --firmware Reload firmware on ZTEX FPGAs\n\
-h, --help Display this help text and exit\n\n\
Options while mining ----------------------------------------------------------\n\n\
s + <enter> Display mining summary\n\
f + <enter> Display fpga summary\n\
d + <enter> Toggle Debug mode\n\
q + <enter> Toggle Quite mode\n\
";
static char const short_options[] =
"a:b:c:C:D:f:F:h:m:p:Px:q:r:R:s:S:t:T:o:u:O:V:z";
static struct option const options[] = {
{ "algo", 1, NULL, 'a' },
{ "api-bind", 1, NULL, 'b' },
{ "api-remote", 0, NULL, 1030 },
{ "cert", 1, NULL, 1001 },
{ "coinbase-addr", 1, NULL, 1013 },
{ "coinbase-sig", 1, NULL, 1015 },
{ "config", 1, NULL, 'c' },
{ "cpu", 0, NULL, 'C' },
{ "cpu-affinity", 1, NULL, 1020 },
{ "cpu-priority", 1, NULL, 1021 },
{ "no-color", 0, NULL, 1002 },
{ "debug", 0, NULL, 'D' },
{ "diff-factor", 1, NULL, 'f' },
{ "diff-multiplier", 1, NULL, 'm' },
{ "help", 0, NULL, 'h' },
{ "no-gbt", 0, NULL, 1011 },
{ "no-getwork", 0, NULL, 1010 },
{ "no-longpoll", 0, NULL, 1003 },
{ "no-redirect", 0, NULL, 1009 },
{ "no-stratum", 0, NULL, 1007 },
{ "no-extranonce", 0, NULL, 1012 },
{ "pass", 1, NULL, 'p' },
{ "protocol", 0, NULL, 'P' },
{ "protocol-dump", 0, NULL, 'P' },
{ "proxy", 1, NULL, 'x' },
{ "quiet", 0, NULL, 'q' },
{ "retries", 1, NULL, 'r' },
{ "retry-pause", 1, NULL, 'R' },
{ "scan-time", 1, NULL, 's' },
{ "scan-serial", 1, NULL, 'S' },
{ "threads", 1, NULL, 't' },
{ "timeout", 1, NULL, 'T' },
{ "url", 1, NULL, 'o' },
{ "user", 1, NULL, 'u' },
{ "userpass", 1, NULL, 'O' },
{ "ztex", 1, NULL, 'z' },
{ "auto-freq", 0, NULL, 1004 },
{ "firmware", 0, NULL, 'F' },
{ "version", 0, NULL, 'V' },
{ 0, 0, 0, 0 }
};
static struct work g_work = {{ 0 }};
static time_t g_work_time = 0;
static pthread_mutex_t g_work_lock;
static bool submit_old = false;
static char *lp_id;
static void workio_cmd_free(struct workio_cmd *wc);
#ifdef __linux /* Linux specific policy and affinity management */
#include <sched.h>
static inline void drop_policy(void)
{
struct sched_param param;
param.sched_priority = 0;
#ifdef SCHED_IDLE
if (unlikely(sched_setscheduler(0, SCHED_IDLE, ¶m) == -1))
#endif
#ifdef SCHED_BATCH
sched_setscheduler(0, SCHED_BATCH, ¶m);
#endif
}
#ifdef __BIONIC__
#define pthread_setaffinity_np(tid,sz,s) {} /* only do process affinity */
#endif
static void affine_to_cpu_mask(int id, uint8_t mask) {
cpu_set_t set;
CPU_ZERO(&set);
uint8_t i;
for ( i = 0; i < num_cpus; i++) {
// cpu mask
if (mask & (1<<i)) { CPU_SET(i, &set); }
}
if (id == -1) {
// process affinity
sched_setaffinity(0, sizeof(&set), &set);
} else {
// thread only
pthread_setaffinity_np(thr_info[id].pth, sizeof(&set), &set);
}
}
#elif defined(WIN32) /* Windows */
static inline void drop_policy(void) { }
static void affine_to_cpu_mask(int id, uint8_t mask) {
if (id == -1)
SetProcessAffinityMask(GetCurrentProcess(), mask);
else
SetThreadAffinityMask(GetCurrentThread(), mask);
}
#else
static inline void drop_policy(void) { }
static void affine_to_cpu_mask(int id, uint8_t mask) { }
#endif
void get_currentalgo(char* buf, int sz)
{
snprintf(buf, sz, "%s", algo_names[opt_algo]);
}
void proper_exit(int reason)
{
exit(reason);
}
static inline void work_free(struct work *w)
{
if (w->txs) free(w->txs);
if (w->workid) free(w->workid);
if (w->job_id) free(w->job_id);
if (w->xnonce2) free(w->xnonce2);
}
static inline void work_copy(struct work *dest, const struct work *src)
{
memcpy(dest, src, sizeof(struct work));
if (src->txs)
dest->txs = strdup(src->txs);
if (src->workid)
dest->workid = strdup(src->workid);
if (src->job_id)
dest->job_id = strdup(src->job_id);
if (src->xnonce2) {
dest->xnonce2 = (uchar*) malloc(src->xnonce2_len);
memcpy(dest->xnonce2, src->xnonce2, src->xnonce2_len);
}
}
static bool work_decode(const json_t *val, struct work *work)
{
int i;
int data_size = sizeof(work->data), target_size = sizeof(work->target);
int adata_sz = ARRAY_SIZE(work->data), atarget_sz = ARRAY_SIZE(work->target);
if (jsonrpc_2) {
return rpc2_job_decode(val, work);
}
if (unlikely(!jobj_binary(val, "data", work->data, data_size))) {
applog(LOG_ERR, "JSON invalid data");
goto err_out;
}
if (unlikely(!jobj_binary(val, "target", work->target, target_size))) {
applog(LOG_ERR, "JSON invalid target");
goto err_out;
}
for (i = 0; i < adata_sz; i++)
work->data[i] = le32dec(work->data + i);
for (i = 0; i < atarget_sz; i++)
work->target[i] = le32dec(work->target + i);
return true;
err_out:
return false;
}
// good alternative for wallet mining, difficulty and net hashrate
static const char *info_req =
"{\"method\": \"getmininginfo\", \"params\": [], \"id\":8}\r\n";
static bool get_mininginfo(CURL *curl, struct work *work)
{
if (have_stratum || !allow_mininginfo)
return false;
int curl_err = 0;
json_t *val = json_rpc_call(curl, rpc_url, rpc_userpass, info_req, &curl_err, 0);
if (!val && curl_err == -1) {
allow_mininginfo = false;
if (opt_debug) {
applog(LOG_DEBUG, "getmininginfo not supported");
}
return false;
}
else {
json_t *res = json_object_get(val, "result");
// "blocks": 491493 (= current work height - 1)
// "difficulty": 0.99607860999999998
// "networkhashps": 56475980
if (res) {
json_t *key = json_object_get(res, "difficulty");
if (key && json_is_real(key)) {
net_diff = json_real_value(key);
}
key = json_object_get(res, "networkhashps");
if (key && json_is_integer(key)) {
net_hashrate = (double) json_integer_value(key);
}
key = json_object_get(res, "blocks");
if (key && json_is_integer(key)) {
net_blocks = json_integer_value(key);
}
if (!work->height) {
// complete missing data from getwork
work->height = (uint32_t) net_blocks + 1;
if (work->height > g_work.height) {
restart_threads();
if (!opt_quiet) {
char netinfo[64] = { 0 };
char srate[32] = { 0 };
sprintf(netinfo, "diff %.2f", net_diff);
if (net_hashrate) {
format_hashrate(net_hashrate, srate);
strcat(netinfo, ", net ");
strcat(netinfo, srate);
}
applog(LOG_BLUE, "%s block %d, %s",
algo_names[opt_algo], work->height, netinfo);
}
}
}
}
}
json_decref(val);
return true;
}
#define BLOCK_VERSION_CURRENT 3
static bool gbt_work_decode(const json_t *val, struct work *work)
{
int i, n;
uint32_t version, curtime, bits;
uint32_t prevhash[8];
uint32_t target[8];
int cbtx_size;
uchar *cbtx = NULL;
int tx_count, tx_size;
uchar txc_vi[9];
uchar(*merkle_tree)[32] = NULL;
bool coinbase_append = false;
bool submit_coinbase = false;
bool version_force = false;
bool version_reduce = false;
json_t *tmp, *txa;
bool rc = false;
tmp = json_object_get(val, "mutable");
if (tmp && json_is_array(tmp)) {
n = (int) json_array_size(tmp);
for (i = 0; i < n; i++) {
const char *s = json_string_value(json_array_get(tmp, i));
if (!s)
continue;
if (!strcmp(s, "coinbase/append"))
coinbase_append = true;
else if (!strcmp(s, "submit/coinbase"))
submit_coinbase = true;
else if (!strcmp(s, "version/force"))
version_force = true;
else if (!strcmp(s, "version/reduce"))
version_reduce = true;
}
}
tmp = json_object_get(val, "height");
if (!tmp || !json_is_integer(tmp)) {
applog(LOG_ERR, "JSON invalid height");
goto out;
}
work->height = (int) json_integer_value(tmp);
applog(LOG_BLUE, "Current block is %d", work->height);
tmp = json_object_get(val, "version");
if (!tmp || !json_is_integer(tmp)) {
applog(LOG_ERR, "JSON invalid version");
goto out;
}
version = (uint32_t) json_integer_value(tmp);
if ((version & 0xffU) > BLOCK_VERSION_CURRENT) {
if (version_reduce) {
version = (version & ~0xffU) | BLOCK_VERSION_CURRENT;
} else if (have_gbt && allow_getwork && !version_force) {
applog(LOG_DEBUG, "Switching to getwork, gbt version %d", version);
have_gbt = false;
goto out;
} else if (!version_force) {
applog(LOG_ERR, "Unrecognized block version: %u", version);
goto out;
}
}
if (!jobj_binary(val, "previousblockhash", prevhash, sizeof(prevhash))) {
applog(LOG_ERR, "JSON invalid previousblockhash");
goto out;
}
tmp = json_object_get(val, "curtime");
if (!tmp || !json_is_integer(tmp)) {
applog(LOG_ERR, "JSON invalid curtime");
goto out;
}
curtime = (uint32_t) json_integer_value(tmp);
if (!jobj_binary(val, "bits", &bits, sizeof(bits))) {
applog(LOG_ERR, "JSON invalid bits");
goto out;
}
/* find count and size of transactions */
txa = json_object_get(val, "transactions");
if (!txa || !json_is_array(txa)) {
applog(LOG_ERR, "JSON invalid transactions");
goto out;
}
tx_count = (int) json_array_size(txa);
tx_size = 0;
for (i = 0; i < tx_count; i++) {
const json_t *tx = json_array_get(txa, i);
const char *tx_hex = json_string_value(json_object_get(tx, "data"));
if (!tx_hex) {
applog(LOG_ERR, "JSON invalid transactions");
goto out;
}
tx_size += (int) (strlen(tx_hex) / 2);
}
/* build coinbase transaction */
tmp = json_object_get(val, "coinbasetxn");
if (tmp) {
const char *cbtx_hex = json_string_value(json_object_get(tmp, "data"));
cbtx_size = cbtx_hex ? (int) strlen(cbtx_hex) / 2 : 0;
cbtx = (uchar*) malloc(cbtx_size + 100);
if (cbtx_size < 60 || !hex2bin(cbtx, cbtx_hex, cbtx_size)) {
applog(LOG_ERR, "JSON invalid coinbasetxn");
goto out;
}
} else {
int64_t cbvalue;
if (!pk_script_size) {
if (allow_getwork) {
applog(LOG_INFO, "No payout address provided, switching to getwork");
have_gbt = false;
} else
applog(LOG_ERR, "No payout address provided");
goto out;
}
tmp = json_object_get(val, "coinbasevalue");
if (!tmp || !json_is_number(tmp)) {
applog(LOG_ERR, "JSON invalid coinbasevalue");
goto out;
}
cbvalue = (int64_t) (json_is_integer(tmp) ? json_integer_value(tmp) : json_number_value(tmp));
cbtx = (uchar*) malloc(256);
le32enc((uint32_t *)cbtx, 1); /* version */
cbtx[4] = 1; /* in-counter */
memset(cbtx+5, 0x00, 32); /* prev txout hash */
le32enc((uint32_t *)(cbtx+37), 0xffffffff); /* prev txout index */
cbtx_size = 43;
/* BIP 34: height in coinbase */
for (n = work->height; n; n >>= 8)
cbtx[cbtx_size++] = n & 0xff;
cbtx[42] = cbtx_size - 43;
cbtx[41] = cbtx_size - 42; /* scriptsig length */
le32enc((uint32_t *)(cbtx+cbtx_size), 0xffffffff); /* sequence */
cbtx_size += 4;
cbtx[cbtx_size++] = 1; /* out-counter */
le32enc((uint32_t *)(cbtx+cbtx_size), (uint32_t)cbvalue); /* value */
le32enc((uint32_t *)(cbtx+cbtx_size+4), cbvalue >> 32);
cbtx_size += 8;
cbtx[cbtx_size++] = (uint8_t) pk_script_size; /* txout-script length */
memcpy(cbtx+cbtx_size, pk_script, pk_script_size);
cbtx_size += (int) pk_script_size;
le32enc((uint32_t *)(cbtx+cbtx_size), 0); /* lock time */
cbtx_size += 4;
coinbase_append = true;
}
if (coinbase_append) {
unsigned char xsig[100];
int xsig_len = 0;
if (*coinbase_sig) {
n = (int) strlen(coinbase_sig);
if (cbtx[41] + xsig_len + n <= 100) {
memcpy(xsig+xsig_len, coinbase_sig, n);
xsig_len += n;
} else {
applog(LOG_WARNING, "Signature does not fit in coinbase, skipping");
}
}
tmp = json_object_get(val, "coinbaseaux");
if (tmp && json_is_object(tmp)) {
void *iter = json_object_iter(tmp);
while (iter) {
unsigned char buf[100];
const char *s = json_string_value(json_object_iter_value(iter));
n = s ? (int) (strlen(s) / 2) : 0;
if (!s || n > 100 || !hex2bin(buf, s, n)) {
applog(LOG_ERR, "JSON invalid coinbaseaux");
break;
}
if (cbtx[41] + xsig_len + n <= 100) {
memcpy(xsig+xsig_len, buf, n);
xsig_len += n;
}
iter = json_object_iter_next(tmp, iter);
}
}
if (xsig_len) {
unsigned char *ssig_end = cbtx + 42 + cbtx[41];
int push_len = cbtx[41] + xsig_len < 76 ? 1 :
cbtx[41] + 2 + xsig_len > 100 ? 0 : 2;
n = xsig_len + push_len;
memmove(ssig_end + n, ssig_end, cbtx_size - 42 - cbtx[41]);
cbtx[41] += n;
if (push_len == 2)
*(ssig_end++) = 0x4c; /* OP_PUSHDATA1 */
if (push_len)
*(ssig_end++) = xsig_len;
memcpy(ssig_end, xsig, xsig_len);
cbtx_size += n;
}
}
n = varint_encode(txc_vi, 1 + tx_count);
work->txs = (char*) malloc(2 * (n + cbtx_size + tx_size) + 1);
bin2hex(work->txs, txc_vi, n);
bin2hex(work->txs + 2*n, cbtx, cbtx_size);
/* generate merkle root */
merkle_tree = (uchar(*)[32]) calloc(((1 + tx_count + 1) & ~1), 32);
sha256d(merkle_tree[0], cbtx, cbtx_size);
for (i = 0; i < tx_count; i++) {
tmp = json_array_get(txa, i);
const char *tx_hex = json_string_value(json_object_get(tmp, "data"));
const int tx_size = tx_hex ? (int) (strlen(tx_hex) / 2) : 0;
unsigned char *tx = (uchar*) malloc(tx_size);
if (!tx_hex || !hex2bin(tx, tx_hex, tx_size)) {
applog(LOG_ERR, "JSON invalid transactions");
free(tx);
goto out;
}
sha256d(merkle_tree[1 + i], tx, tx_size);
if (!submit_coinbase)
strcat(work->txs, tx_hex);
}
n = 1 + tx_count;
while (n > 1) {
if (n % 2) {
memcpy(merkle_tree[n], merkle_tree[n-1], 32);
++n;
}
n /= 2;
for (i = 0; i < n; i++)
sha256d(merkle_tree[i], merkle_tree[2*i], 64);
}
/* assemble block header */
work->data[0] = swab32(version);
for (i = 0; i < 8; i++)
work->data[8 - i] = le32dec(prevhash + i);
for (i = 0; i < 8; i++)
work->data[9 + i] = be32dec((uint32_t *)merkle_tree[0] + i);
work->data[17] = swab32(curtime);
work->data[18] = le32dec(&bits);
memset(work->data + 19, 0x00, 52);
work->data[20] = 0x80000000;
work->data[31] = 0x00000280;
if (unlikely(!jobj_binary(val, "target", target, sizeof(target)))) {
applog(LOG_ERR, "JSON invalid target");
goto out;
}
for (i = 0; i < ARRAY_SIZE(work->target); i++)
work->target[7 - i] = be32dec(target + i);
tmp = json_object_get(val, "workid");
if (tmp) {
if (!json_is_string(tmp)) {
applog(LOG_ERR, "JSON invalid workid");
goto out;
}
work->workid = strdup(json_string_value(tmp));
}
rc = true;
out:
/* Long polling */
tmp = json_object_get(val, "longpollid");
if (want_longpoll && json_is_string(tmp)) {
free(lp_id);
lp_id = strdup(json_string_value(tmp));
if (!have_longpoll) {
char *lp_uri;
tmp = json_object_get(val, "longpolluri");
lp_uri = json_is_string(tmp) ? strdup(json_string_value(tmp)) : rpc_url;
have_longpoll = true;
tq_push(thr_info[longpoll_thr_id].q, lp_uri);
}
}
free(merkle_tree);
free(cbtx);
return rc;
}
static int share_result(int result, struct work *work, const char *reason)
{
char s[345];
const char *sres;
double hashrate;
int i;
hashrate = 0.;
pthread_mutex_lock(&stats_lock);
for (i = 0; i < g_miner_count; i++)
hashrate += thr_hashrates[i];
result ? accepted_count++ : rejected_count++;
pthread_mutex_unlock(&stats_lock);
global_hashrate = (uint64_t) hashrate;
if (use_colors)
sres = (result ? CL_GRN "yes!" : CL_RED "nooooo");
else
sres = (result ? "(yes!!!)" : "(nooooo)");
sprintf(s, "%.2f", hashrate / 1000000.0);
applog(LOG_NOTICE, "accepted: %lu/%lu (%.2f%%), %s MH/s %s",
accepted_count, accepted_count + rejected_count,
100. * accepted_count / (accepted_count + rejected_count), s, sres);
if (reason) {
applog(LOG_WARNING, "reject reason: %s", reason);
if (strncmp(reason, "low difficulty share", 20) == 0) {
opt_diff_factor = (opt_diff_factor * 2.0) / 3.0;
applog(LOG_WARNING, "factor reduced to : %0.2f", opt_diff_factor);
return 0;
}
}
return 1;
}
static bool submit_upstream_work(CURL *curl, struct work *work)
{
json_t *val, *res, *reason;
char s[JSON_BUF_LEN];
int i;
bool rc = false;
/* pass if the previous hash is not the current previous hash */
if (!submit_old && memcmp(&work->data[1], &g_work.data[1], 32)) {
if (opt_debug)
applog(LOG_DEBUG, "DEBUG: stale work detected, discarding");
return true;
}
if (!have_stratum && allow_mininginfo) {
struct work wheight;
get_mininginfo(curl, &wheight);
if (work->height && work->height <= net_blocks) {
if (opt_debug)
applog(LOG_WARNING, "block %u was already solved", work->height);
return true;
}
}
if (have_stratum) {
uint32_t ntime, nonce;
char ntimestr[9], noncestr[9];
if (jsonrpc_2) {
uchar hash[32];
bin2hex(noncestr, (const unsigned char *)work->data + 39, 4);
char *hashhex = abin2hex(hash, 32);
snprintf(s, JSON_BUF_LEN,
"{\"method\": \"submit\", \"params\": {\"id\": \"%s\", \"job_id\": \"%s\", \"nonce\": \"%s\", \"result\": \"%s\"}, \"id\":4}\r\n",
rpc2_id, work->job_id, noncestr, hashhex);
free(hashhex);
} else {
char *xnonce2str;
le32enc(&ntime, work->data[17]);
le32enc(&nonce, work->data[19]);
bin2hex(ntimestr, (const unsigned char *)(&ntime), 4);
bin2hex(noncestr, (const unsigned char *)(&nonce), 4);
xnonce2str = abin2hex(work->xnonce2, work->xnonce2_len);
snprintf(s, JSON_BUF_LEN,
"{\"method\": \"mining.submit\", \"params\": [\"%s\", \"%s\", \"%s\", \"%s\", \"%s\"], \"id\":4}",
rpc_user, work->job_id, xnonce2str, ntimestr, noncestr);
free(xnonce2str);
}
if (unlikely(!stratum_send_line(&stratum, s))) {
applog(LOG_ERR, "submit_upstream_work stratum_send_line failed");
goto out;
}
} else if (work->txs) {
char data_str[2 * sizeof(work->data) + 1];
char *req;
for (i = 0; i < ARRAY_SIZE(work->data); i++)
be32enc(work->data + i, work->data[i]);
bin2hex(data_str, (unsigned char *)work->data, 80);
if (work->workid) {
char *params;
val = json_object();
json_object_set_new(val, "workid", json_string(work->workid));
params = json_dumps(val, 0);
json_decref(val);
req = (char*) malloc(128 + 2 * 80 + strlen(work->txs) + strlen(params));
sprintf(req,
"{\"method\": \"submitblock\", \"params\": [\"%s%s\", %s], \"id\":4}\r\n",
data_str, work->txs, params);
free(params);
} else {
req = (char*) malloc(128 + 2 * 80 + strlen(work->txs));
sprintf(req,
"{\"method\": \"submitblock\", \"params\": [\"%s%s\"], \"id\":4}\r\n",
data_str, work->txs);
}
val = json_rpc_call(curl, rpc_url, rpc_userpass, req, NULL, 0);
free(req);
if (unlikely(!val)) {
applog(LOG_ERR, "submit_upstream_work json_rpc_call failed");
goto out;
}
res = json_object_get(val, "result");
if (json_is_object(res)) {
char *res_str;
bool sumres = false;
void *iter = json_object_iter(res);
while (iter) {
if (json_is_null(json_object_iter_value(iter))) {
sumres = true;
break;
}
iter = json_object_iter_next(res, iter);
}
res_str = json_dumps(res, 0);
share_result(sumres, work, res_str);
free(res_str);
} else
share_result(json_is_null(res), work, json_string_value(res));
json_decref(val);
} else {
char* gw_str = NULL;
int data_size = 128;
int adata_sz;
if (jsonrpc_2) {
char noncestr[9];
uchar hash[32];
char *hashhex;
bin2hex(noncestr, (const unsigned char *)work->data + 39, 4);
hashhex = abin2hex(&hash[0], 32);
snprintf(s, JSON_BUF_LEN,
"{\"method\": \"submit\", \"params\": "
"{\"id\": \"%s\", \"job_id\": \"%s\", \"nonce\": \"%s\", \"result\": \"%s\"},"
"\"id\":4}\r\n",
rpc2_id, work->job_id, noncestr, hashhex);
free(hashhex);
/* issue JSON-RPC request */
val = json_rpc2_call(curl, rpc_url, rpc_userpass, s, NULL, 0);
if (unlikely(!val)) {
applog(LOG_ERR, "submit_upstream_work json_rpc_call failed");
goto out;
}
res = json_object_get(val, "result");
json_t *status = json_object_get(res, "status");
bool valid = !strcmp(status ? json_string_value(status) : "", "OK");
if (valid)
share_result(valid, work, NULL);
else {
json_t *err = json_object_get(res, "error");
const char *sreason = json_string_value(json_object_get(err, "message"));
share_result(valid, work, sreason);
if (!strcasecmp("Invalid job id", sreason)) {
work_free(work);
work_copy(work, &g_work);
g_work_time = 0;
restart_threads();
}
}
json_decref(val);
return true;
}
adata_sz = data_size / sizeof(uint32_t);
/* build hex string */
for (i = 0; i < adata_sz; i++)
le32enc(&work->data[i], work->data[i]);
gw_str = abin2hex((uchar*)work->data, data_size);
if (unlikely(!gw_str)) {
applog(LOG_ERR, "submit_upstream_work OOM");
return false;
}
/* build JSON-RPC request */
snprintf(s, JSON_BUF_LEN,
"{\"method\": \"getwork\", \"params\": [\"%s\"], \"id\":4}\r\n", gw_str);
free(gw_str);
/* issue JSON-RPC request */
val = json_rpc_call(curl, rpc_url, rpc_userpass, s, NULL, 0);
if (unlikely(!val)) {
applog(LOG_ERR, "submit_upstream_work json_rpc_call failed");
goto out;
}
res = json_object_get(val, "result");
reason = json_object_get(val, "reject-reason");
share_result(json_is_true(res), work, reason ? json_string_value(reason) : NULL);
json_decref(val);
}
rc = true;
out:
return rc;
}
static const char *getwork_req =
"{\"method\": \"getwork\", \"params\": [], \"id\":0}\r\n";
#define GBT_CAPABILITIES "[\"coinbasetxn\", \"coinbasevalue\", \"longpoll\", \"workid\"]"
static const char *gbt_req =
"{\"method\": \"getblocktemplate\", \"params\": [{\"capabilities\": "
GBT_CAPABILITIES "}], \"id\":0}\r\n";