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cpu-miner.c
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/*
* Copyright 2010 Jeff Garzik
* Copyright 2012-2014 pooler
* Copyright 2014 Lucas Jones
* Copyright 2014-2016 Tanguy Pruvot
* Copyright 2016-2020 Jay D Dee
*
* 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.
*/
/*
* Change log
*
* 2016-01-14: v 1.9-RC inititial limited release combining
* cpuminer-multi 1.2-prev, darkcoin-cpu-miner 1.3,
* and cp3u 2.3.2 plus some performance optimizations.
*
* 2016-02-04: v3.1 algo_gate implemntation
*/
#include <cpuminer-config.h>
#define _GNU_SOURCE
#include "algo/sha/sha256d.h"
#include "msr_mod.h"
#include "sysinfos.c"
#include "virtual_memory.h"
#include <curl/curl.h>
#include <inttypes.h>
#include <jansson.h>
#include <math.h>
#include <memory.h>
#include <openssl/sha.h>
#include <signal.h>
#include <simd-utils.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/time.h>
#include <time.h>
#include <unistd.h>
#ifdef WIN32
#include <windows.h>
#include <winsock2.h>
#endif
#ifdef _MSC_VER
#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
// GCC 9 warning sysctl.h is deprecated
#if (__GNUC__ < 9)
#include <sys/sysctl.h>
#endif
#endif // HAVE_SYS_SYSCTL_H
#endif // _MSC_VER ELSE
#ifndef WIN32
#include <sys/resource.h>
#endif
#include "algo-gate-api.h"
#include "miner.h"
#ifdef WIN32
#include "compat/winansi.h"
// BOOL WINAPI ConsoleHandler(DWORD);
#endif
#ifdef _MSC_VER
#include <Mmsystem.h>
#pragma comment(lib, "winmm.lib")
#endif
#define LP_SCANTIME 60
#include <errno.h>
#include <fcntl.h>
#include <sys/stat.h>
#include <sys/types.h>
#include "algo/gr/gr-gate.h" // gr_getAlgoString
algo_gate_t algo_gate;
bool block_trust = false;
bool opt_block_trust = false;
bool opt_debug = false;
bool opt_debug_diff = false;
bool opt_protocol = false;
bool opt_benchmark = false;
bool opt_benchmark_old = 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; // pretty useless
bool have_stratum = false;
bool allow_mininginfo = true;
bool use_syslog = false;
bool use_colors = true;
static bool opt_background = false;
bool opt_quiet = false;
bool opt_randomize = false;
static int opt_retries = -1;
static int opt_fail_pause = 15;
static int opt_time_limit = 0;
int opt_timeout = 300;
static int opt_scantime = 45;
const int min_scantime = 1;
// static const bool opt_time = true;
enum algos opt_algo = ALGO_NULL;
char *opt_param_key = NULL;
int opt_param_n = 0;
int opt_param_r = 0;
int opt_n_threads = 0;
bool opt_sapling = false;
bool opt_set_msr = true;
bool opt_stress_test = false;
int opt_ecores = -1;
bool opt_disabled_rots[20] = {false};
bool is_intel_12th = false;
bool matching_instructions = true;
// Path to custom sensor location.
// That way users can select proper sensors for their machines.
char *opt_sensor_path = NULL;
uint64_t request_id = 5;
// Windows doesn't support 128 bit affinity mask.
// Need compile time and run time test.
#if defined(__linux) && defined(GCC_INT128)
#define AFFINITY_USES_UINT128 1
static uint128_t opt_affinity = ((uint128_t)-1);
static bool affinity_uses_uint128 = true;
#else
static uint64_t opt_affinity = -1;
static bool affinity_uses_uint128 = false;
#endif
int opt_priority = 0; // deprecated
int num_cpus = 1;
int num_cpugroups = 1;
char *rpc_url = NULL;
char *rpc_url_backup = NULL;
bool url_backup = false;
char *rpc_userpass = NULL;
char *rpc_user, *rpc_pass;
char *short_url = NULL;
char *coinbase_address;
char *opt_data_file = NULL;
bool opt_verify = false;
bool stratum_problem = false;
// Default config for CN variants.
// 0 - Use default 1way/SSE
// 1 - Use 2way algorithm.
__thread uint8_t cn_config[6] = {0, 0, 0, 0, 0, 0};
uint8_t cn_config_global[6] = {0, 0, 0, 0, 0, 0};
bool opt_tuned = false;
bool opt_tune = true;
bool opt_tune_force = false;
uint8_t cn_tune[40][6];
uint8_t thread_tune[40];
uint8_t prefetch_tune[40];
// By default use "safer" prefetch method in case someon is not tuning the cpu.
__thread bool prefetch_l1 = true;
uint8_t *used_threads = NULL;
bool opt_tune_simple = false;
bool opt_tune_full = false;
char *opt_tuneconfig_file = NULL;
char *opt_log_file = NULL;
FILE *log_file = NULL;
// pk_buffer_size is used as a version selector by b58 code, therefore
// it must be ret correctly to work.
const int pk_buffer_size_max = 26;
int pk_buffer_size = 25;
static unsigned char pk_script[26] = {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;
double opt_diff_factor = 1.0;
double opt_target_factor = 1.0;
uint32_t zr5_pok = 0;
bool opt_stratum_stats = false;
bool opt_hash_meter = false;
uint32_t submitted_share_count = 0;
uint32_t accepted_share_count = 0;
uint32_t rejected_share_count = 0;
uint32_t stale_share_count = 0;
uint32_t solved_block_count = 0;
double *thr_hashrates;
double global_hashrate = 0.;
double global_min_hr = 1e12;
double global_avg_hr = 0;
uint32_t hr_count = 0;
double global_max_hr = 0.;
double stratum_diff = 0.;
double net_diff = 0.;
double net_hashrate = 0.;
uint64_t net_blocks = 0;
uint32_t opt_work_size = 0;
double global_hashes = 0.;
long global_time = 0;
double current_hashes = 0.;
long current_time = 0;
uint32_t threads_counted_shares = 0;
// Variables storing original user data.
char *rpc_user_original = NULL;
char *rpc_pass_original = NULL;
char *rpc_url_original = NULL;
// Data about dev wallets.
// idx 0 - Ausminer
// idx 1 - Delgon
const uint8_t max_idx = 9;
uint8_t donation_url_idx[2] = {0, 0};
char *donation_url_pattern[2][9] = {
{"flockpool", "flockpool", "flockpool", "flockpool", "p2pool", "r-pool",
"suprnova", "ausminers", "rplant"},
{"flockpool", "flockpool", "flockpool", "flockpool", "p2pool", "r-pool",
"suprnova", "ausminers", "rplant"}};
char *donation_url[2][9] = {
{"stratum+tcp://eu.flockpool.com:4444",
"stratum+tcp://us-west.flockpool.com:4444",
"stratum+tcp://us.flockpool.com:4444",
"stratum+tcp://asia.flockpool.com:4444", "stratum+tcp://p2pool.co:3032",
"stratum+tcp://r-pool.net:3032", "stratum+tcp://rtm.suprnova.cc:6273",
"stratum+tcp://rtm.ausminers.com:3001",
"stratum+tcp://stratum-eu.rplant.xyz:7056"},
{"stratum+tcp://eu.flockpool.com:4444",
"stratum+tcp://us-west.flockpool.com:4444",
"stratum+tcp://us.flockpool.com:4444",
"stratum+tcp://asia.flockpool.com:4444", "stratum+tcp://p2pool.co:3032",
"stratum+tcp://r-pool.net:3032", "stratum+tcp://rtm.suprnova.cc:6273",
"stratum+tcp://rtm.ausminers.com:3001",
"stratum+tcp://stratum-eu.rplant.xyz:7056"}};
char *donation_userRTM[2] = {"RUuCbtCZNvhXXneUHiVMqEStyyAPz95u16",
"RW1UijNUp1bh6phBZS8WZV8LDhAECX4eYA"};
volatile bool switching_sctx_data = false;
bool enable_donation = true;
double donation_percent = 0.05;
int dev_turn = 1;
int turn_part = 2;
bool dev_mining = false;
bool switched_stratum = false;
long donation_wait = 4800;
long donation_time_start = 0;
long donation_time_stop = 0;
// conditional mining
bool conditional_state[MAX_CPUS] = {0};
double opt_max_temp = 0.0;
double opt_max_diff = 0.0;
double opt_max_rate = 0.0;
// API
static bool opt_api_enabled = false;
char *opt_api_allow = NULL;
int opt_api_listen = 0;
int opt_api_remote = 0;
char *default_api_allow = "127.0.0.1";
int default_api_listen = 4048;
pthread_mutex_t applog_lock;
pthread_mutex_t stats_lock;
pthread_mutex_t stratum_lock;
pthread_cond_t sync_cond;
static struct timeval hashrate_start;
static struct timeval session_start;
static struct timeval five_min_start;
static uint64_t session_first_block = 0;
static double latency_sum = 0.;
static uint64_t submit_sum = 0;
static uint64_t accept_sum = 0;
static uint64_t stale_sum = 0;
static uint64_t reject_sum = 0;
static uint64_t solved_sum = 0;
static double norm_diff_sum = 0.;
static uint32_t last_block_height = 0;
static double highest_share = 0; // highest accepted share diff
static double lowest_share = 9e99; // lowest accepted share diff
static double last_targetdiff = 0.;
#if !(defined(__WINDOWS__) || defined(_WIN64) || defined(_WIN32))
static uint32_t hi_temp = 0;
static uint32_t prev_temp = 0;
#endif
static char const short_options[] =
#ifdef HAVE_SYSLOG_H
"S"
#endif
"a:b:Bc:CDf:hK:m:n:N:p:Px:qr:R:s:t:T:o:u:O:V:d:y";
static struct work g_work __attribute__((aligned(64))) = {{0}};
time_t g_work_time = 0;
pthread_rwlock_t g_work_lock;
static bool submit_old = false;
char *lp_id;
static void workio_cmd_free(struct workio_cmd *wc);
static void format_affinity_map(char *map_str, uint64_t map) {
int n = num_cpus < 64 ? num_cpus : 64;
int i;
for (i = 0; i < n; i++) {
if (map & 1)
map_str[i] = '!';
else
map_str[i] = '.';
map >>= 1;
}
memset(&map_str[i], 0, 64 - i);
}
#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
// Linux affinity can use int128.
#if AFFINITY_USES_UINT128
static void affine_to_cpu_mask(int id, uint128_t mask)
#else
static void affine_to_cpu_mask(int id, uint64_t mask)
#endif
{
cpu_set_t set;
CPU_ZERO(&set);
uint8_t ncpus = (num_cpus > 256) ? (uint8_t)256 : num_cpus;
for (uint8_t i = 0; i < ncpus; i++) {
// cpu mask
#if AFFINITY_USES_UINT128
if ((mask & (((uint128_t)1) << i)))
CPU_SET(i, &set);
#else
if ((ncpus > 64) || (mask & (1 << i)))
CPU_SET(i, &set);
#endif
}
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) {}
// Windows CPU groups to manage more than 64 CPUs.
static void affine_to_cpu_mask(int id, uint64_t mask) {
bool success;
unsigned long last_error;
// BOOL success;
// DWORD last_error;
if (id == -1)
success = SetProcessAffinityMask(GetCurrentProcess(), mask);
// Are Windows CPU Groups supported?
#if _WIN32_WINNT == 0x0601
// Do not use it even with 1 CPU group as for some reason it has problems
// setting affinity for more than 32 threads. Tested on multiple 32+ thread
// Threadripper 1000, 2000 and 3000 series.
else if (num_cpugroups == 1)
success = SetThreadAffinityMask(GetCurrentThread(), mask);
else {
// Find the correct cpu group
int cpu = id % num_cpus;
int group;
for (group = 0; group < num_cpugroups; group++) {
int cpus = GetActiveProcessorCount(group);
if (cpu < cpus)
break;
cpu -= cpus;
}
if (opt_debug)
applog(LOG_DEBUG,
"Binding thread %d to cpu %d on cpu group %d (mask 0x%llx)", id,
cpu, group, (1ULL << cpu));
GROUP_AFFINITY affinity;
// Zeorout the whole structure.
// RESERVED field of the struct can be set by system and can cause
// SetThreadGroupAffinity to return code 0x57 - Invalid Parameter.
memset(&affinity, 0, sizeof(GROUP_AFFINITY));
affinity.Group = group;
affinity.Mask = 1ULL << cpu;
success = SetThreadGroupAffinity(GetCurrentThread(), &affinity, NULL);
}
#else
else
success = SetThreadAffinityMask(GetCurrentThread(), mask);
#endif
if (!success) {
last_error = GetLastError();
applog(LOG_WARNING, "affine_to_cpu_mask for %u returned 0x%X", id,
last_error);
}
}
#else
static inline void drop_policy(void) {}
static void affine_to_cpu_mask(int id, unsigned long mask) {}
#endif
// not very useful, just index the arrray directly.
// but declaring this function in miner.h eliminates
// an annoying compiler warning for not using a static.
const char *algo_name(enum algos a) { return algo_names[a]; }
void get_currentalgo(char *buf, int sz) {
snprintf(buf, sz, "%s", algo_names[opt_algo]);
}
void proper_exit(int reason) {
#ifdef WIN32
if (opt_background) {
HWND hcon = GetConsoleWindow();
if (hcon) {
// unhide parent command line windows
ShowWindow(hcon, SW_SHOWMINNOACTIVE);
}
}
#endif
exit(reason);
}
uint32_t *get_stratum_job_ntime() { return (uint32_t *)stratum.job.ntime; }
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);
}
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);
}
}
int std_get_work_data_size() { return STD_WORK_DATA_SIZE; }
// Default
bool std_le_work_decode(struct work *work) {
int i;
const int adata_sz = algo_gate.get_work_data_size() / 4;
const int atarget_sz = ARRAY_SIZE(work->target);
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;
}
bool std_be_work_decode(struct work *work) {
int i;
const int adata_sz = algo_gate.get_work_data_size() / 4;
const int atarget_sz = ARRAY_SIZE(work->target);
for (i = 0; i < adata_sz; i++)
work->data[i] = be32dec(work->data + i);
for (i = 0; i < atarget_sz; i++)
work->target[i] = le32dec(work->target + i);
return true;
}
static bool work_decode(const json_t *val, struct work *work) {
const int data_size = algo_gate.get_work_data_size();
const int target_size = sizeof(work->target);
if (unlikely(!jobj_binary(val, "data", work->data, data_size))) {
applog(LOG_ERR, "JSON invalid data");
return false;
}
if (unlikely(!jobj_binary(val, "target", work->target, target_size))) {
applog(LOG_ERR, "JSON invalid target");
return false;
}
if (unlikely(!algo_gate.work_decode(work)))
return false;
if (!allow_mininginfo)
net_diff = algo_gate.calc_network_diff(work);
else
net_diff = hash_to_diff(work->target);
work->targetdiff = net_diff;
stratum_diff = last_targetdiff = work->targetdiff;
work->sharediff = 0;
algo_gate.decode_extra_data(work, &net_blocks);
return true;
}
// 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;
applog(LOG_NOTICE,
"\"getmininginfo\" not supported, some stats not available");
return false;
}
json_t *res = json_object_get(val, "result");
// "blocks": 491493 (= current work height - 1)
// "difficulty": 0.99607860999999998
// "networkhashps": 56475980
if (res) {
// net_diff is a global that is set from the work hash target by
// both getwork and GBT. Don't overwrite it, define a local to override
// the global.
double net_diff = 0.;
json_t *key = json_object_get(res, "difficulty");
if (key) {
if (json_is_object(key))
key = json_object_get(key, "proof-of-work");
if (json_is_real(key))
net_diff = json_real_value(key);
}
key = json_object_get(res, "networkhashps");
if (key) {
if (json_is_integer(key))
net_hashrate = (double)json_integer_value(key);
else if (json_is_real(key))
net_hashrate = (double)json_real_value(key);
}
key = json_object_get(res, "blocks");
if (key && json_is_integer(key))
net_blocks = json_integer_value(key);
if (opt_debug)
applog(LOG_INFO, "Mining info: diff %.5g, net_hashrate %f, height %d",
net_diff, net_hashrate, net_blocks);
if (!work->height) {
// complete missing data from getwork
work->height = (uint32_t)net_blocks + 1;
if (work->height > g_work.height)
restart_threads();
} // res
}
json_decref(val);
return true;
}
// hodl needs 4 but leave it at 3 until gbt better understood
//#define BLOCK_VERSION_CURRENT 3
#define BLOCK_VERSION_CURRENT 4
static bool gbt_work_decode(const json_t *val, struct work *work) {
size_t i, n;
uint32_t version, curtime, bits;
uint32_t prevhash[8];
uint32_t target[8];
unsigned char final_sapling_hash[32];
int cbtx_size;
uchar *cbtx = NULL;
size_t 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;
// Segwit BEGIN
bool segwit = false;
tmp = json_object_get(val, "rules");
if (tmp && json_is_array(tmp)) {
n = 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, "segwit") || !strcmp(s, "!segwit")) {
segwit = true;
if (opt_debug)
applog(LOG_INFO, "GBT: SegWit is enabled");
}
}
}
// Segwit END
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);
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);
// yescryptr8g uses block version 5 and sapling.
if (opt_sapling)
work->sapling = true;
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 (unlikely(
!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 (unlikely(!jobj_binary(val, "bits", &bits, sizeof(bits)))) {
applog(LOG_ERR, "JSON invalid bits");
goto out;
}
if (work->sapling) {
if (unlikely(!jobj_binary(val, "finalsaplingroothash", final_sapling_hash,
sizeof(final_sapling_hash)))) {
applog(LOG_ERR, "JSON invalid finalsaplingroothash");
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;
/* If the last byte pushed is >= 0x80, then we need to add
another zero byte to signal that the block height is a
positive number. */
if (cbtx[cbtx_size - 1] & 0x80)
cbtx[cbtx_size++] = 0;
cbtx[42] = cbtx_size - 43;
cbtx[41] = cbtx_size - 42; /* scriptsig length */
le32enc((uint32_t *)(cbtx + cbtx_size), 0xffffffff); /* sequence */
cbtx_size += 4;
// Segwit BEGIN
// cbtx[cbtx_size++] = 1; /* out-counter */
cbtx[cbtx_size++] = segwit ? 2 : 1; /* out-counter */
// Segwit END
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;
// Segwit BEGIN
if (segwit) {
unsigned char(*wtree)[32] = calloc(tx_count + 2, 32);
memset(cbtx + cbtx_size, 0, 8); /* value */
cbtx_size += 8;
cbtx[cbtx_size++] = 38; /* txout-script length */
cbtx[cbtx_size++] = 0x6a; /* txout-script */
cbtx[cbtx_size++] = 0x24;
cbtx[cbtx_size++] = 0xaa;
cbtx[cbtx_size++] = 0x21;
cbtx[cbtx_size++] = 0xa9;
cbtx[cbtx_size++] = 0xed;
for (i = 0; i < tx_count; i++) {
const json_t *tx = json_array_get(txa, i);
const json_t *hash = json_object_get(tx, "hash");
if (!hash || !hex2bin(wtree[1 + i], json_string_value(hash), 32)) {
applog(LOG_ERR, "JSON invalid transaction hash");
free(wtree);
goto out;
}
memrev(wtree[1 + i], 32);
}
n = tx_count + 1;
while (n > 1) {
if (n % 2)
memcpy(wtree[n], wtree[n - 1], 32);
n = (n + 1) / 2;
for (i = 0; i < n; i++)
sha256d(wtree[i], wtree[2 * i], 64);
}
memset(wtree[1], 0, 32); /* witness reserved value = 0 */
sha256d(cbtx + cbtx_size, wtree[0], 64);
cbtx_size += 32;
free(wtree);
}
// Segwit END
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;
// Segwit BEGIN
if (segwit) {
const char *txid = json_string_value(json_object_get(tmp, "txid"));
if (!txid || !hex2bin(merkle_tree[1 + i], txid, 32)) {
applog(LOG_ERR, "JSON invalid transaction txid");
goto out;
}
memrev(merkle_tree[1 + i], 32);
} else {
// Segwit END
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);
free(tx);
// Segwit BEGIN
}
// Segwit END
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 */
algo_gate.build_block_header(work, swab32(version), (uint32_t *)prevhash,
(uint32_t *)merkle_tree, swab32(curtime),
le32dec(&bits), final_sapling_hash);
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);
net_diff = work->targetdiff = hash_to_diff(work->target);
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;
}
// returns the unit prefix and the hashrate appropriately scaled.
void scale_hash_for_display(double *hashrate, char *prefix) {
if (*hashrate < 1e4)