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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 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.
*/
#include <cpuminer-config.h>
#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 <openssl/sha.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"
BOOL WINAPI ConsoleHandler(DWORD);
#endif
#ifdef _MSC_VER
#include <Mmsystem.h>
#pragma comment(lib, "winmm.lib")
#endif
#define LP_SCANTIME 60
#ifndef min
#define min(a,b) (a>b ? b : a)
#define max(a,b) (a<b ? b : a)
#endif
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_KECCAK, /* Keccak (old) */
ALGO_KECCAKC, /* Keccak */
ALGO_HEAVY, /* Heavy */
ALGO_NEOSCRYPT, /* NeoScrypt(128, 2, 1) with Salsa20/20 and ChaCha20/20 */
ALGO_QUARK, /* Quark */
ALGO_ALLIUM, /* Garlicoin double lyra2 */
ALGO_ARCTICHASH, /* ArcticHash (Globaltoken) */
ALGO_AXIOM, /* Shabal 256 Memohash */
ALGO_BASTION,
ALGO_BLAKE, /* Blake 256 */
ALGO_BLAKECOIN, /* Simplified 8 rounds Blake 256 */
ALGO_BLAKE2B,
ALGO_BLAKE2S, /* Blake2s */
ALGO_BMW, /* BMW 256 */
ALGO_C11, /* C11 Chaincoin/Flaxcoin X11 variant */
ALGO_CRYPTOLIGHT, /* cryptonight-light (Aeon) */
ALGO_CRYPTONIGHT, /* CryptoNight */
ALGO_DECRED, /* Decred */
ALGO_DMD_GR, /* Diamond */
ALGO_DROP, /* Dropcoin */
ALGO_FRESH, /* Fresh */
ALGO_GEEK,
ALGO_GROESTL, /* Groestl */
ALGO_JHA,
ALGO_LBRY, /* Lbry Sha Ripemd */
ALGO_LUFFA, /* Luffa (Joincoin, Doom) */
ALGO_LYRA2, /* Lyra2RE */
ALGO_LYRA2A40, /* Lyra2a40 */
ALGO_LYRA2REV2, /* Lyra2REv2 */
ALGO_LYRA2V3, /* Lyra2REv3 (Vertcoin) */
ALGO_MYR_GR, /* Myriad Groestl */
ALGO_NIST5, /* Nist5 */
ALGO_PENTABLAKE, /* Pentablake */
ALGO_PHI1612,
ALGO_PHI2,
ALGO_PLUCK, /* Pluck (Supcoin) */
ALGO_QUBIT, /* Qubit */
ALGO_RAINFOREST, /* RainForest */
ALGO_SCRYPT, /* scrypt */
ALGO_SCRYPTJANE, /* Chacha */
ALGO_SHAVITE3, /* Shavite3 */
ALGO_SHA256D, /* SHA-256d */
ALGO_SIA, /* Blake2-B */
ALGO_SIB, /* X11 + gost (Sibcoin) */
ALGO_SKEIN, /* Skein */
ALGO_SKEIN2, /* Double skein (Woodcoin) */
ALGO_SKYDOGE, /* Skydoge */
ALGO_SONOA,
ALGO_S3, /* S3 */
ALGO_TIMETRAVEL, /* Timetravel-8 (Machinecoin) */
ALGO_BITCORE, /* Timetravel-10 (Bitcore) */
ALGO_TRIBUS, /* Denarius jh/keccak/echo */
ALGO_VANILLA, /* Vanilla (Blake256 8-rounds - double sha256) */
ALGO_VELTOR, /* Skein Shavite Shabal Streebog */
ALGO_X5, /* X5 for Pozoqo */
ALGO_X11EVO, /* Permuted X11 */
ALGO_X11, /* X11 */
ALGO_X12,
ALGO_X13, /* X13 */
ALGO_X14, /* X14 */
ALGO_X15, /* X15 */
ALGO_X16R, /* X16R */
ALGO_X16RV2, /* X16Rv2 */
ALGO_X16S,
ALGO_X17, /* X17 */
ALGO_X20R,
ALGO_x22, /* x22 */
ALGO_XEVAN,
ALGO_YESCRYPT,
ALGO_YESCRYPTR8,
ALGO_YESCRYPTR16,
ALGO_YESCRYPTR32,
ALGO_ZR5,
ALGO_COUNT
};
static const char *algo_names[] = {
"keccak",
"keccakc",
"heavy",
"neoscrypt",
"quark",
"allium",
"arctichash",
"axiom",
"bastion",
"blake",
"blakecoin",
"blake2b",
"blake2s",
"bmw",
"c11",
"cryptolight",
"cryptonight",
"decred",
"dmd-gr",
"drop",
"fresh",
"geek",
"groestl",
"jha",
"lbry",
"luffa",
"lyra2a40",
"lyra2re",
"lyra2rev2",
"lyra2v3",
"myr-gr",
"nist5",
"pentablake",
"phi1612",
"phi2",
"pluck",
"qubit",
"rainforest",
"scrypt",
"scrypt-jane",
"shavite3",
"sha256d",
"sia",
"sib",
"skein",
"skein2",
"skydoge",
"sonoa",
"s3",
"timetravel",
"bitcore",
"tribus",
"vanilla",
"veltor",
"x5",
"x11evo",
"x11",
"x12",
"x13",
"x14",
"x15",
"x16r",
"x16rv2",
"x16s",
"x17",
"x20r",
"x22",
"xevan",
"yescrypt",
"yescryptr8",
"yescryptr16",
"yescryptr32",
"zr5",
"\0"
};
bool opt_debug = false;
bool opt_debug_diff = false;
bool opt_protocol = false;
bool opt_benchmark = false;
bool opt_redirect = true;
bool opt_showdiff = 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 opt_stratum_stats = false;
bool allow_mininginfo = true;
bool use_syslog = false;
bool use_colors = true;
static bool opt_background = false;
bool opt_quiet = false;
int opt_maxlograte = 5;
bool opt_randomize = false;
static int opt_retries = -1;
static int opt_fail_pause = 10;
static int opt_time_limit = 0;
int opt_timeout = 300;
static int opt_scantime = 5;
static enum algos opt_algo = ALGO_SCRYPT;
static int opt_scrypt_n = 1024;
static int opt_pluck_n = 128;
static unsigned int opt_nfactor = 6;
int opt_n_threads = 0;
int64_t opt_affinity = -1L;
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 zr5_pok = 0;
bool use_roots = false;
uint32_t solved_count = 0L;
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;
// 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;
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 */
#ifdef HAVE_GETOPT_LONG
#include <getopt.h>
#else
struct option {
const char *name;
int has_arg;
int *flag;
int val;
};
#endif
static char const usage[] = "\
Usage: " PACKAGE_NAME " [OPTIONS]\n\
Options:\n\
-a, --algo=ALGO specify the algorithm to use\n\
allium Garlicoin double lyra2\n\
arctichash ArcticHash (Globaltoken)\n\
axiom Shabal-256 MemoHash\n\
bitcore Timetravel with 10 algos\n\
blake Blake-256 14-rounds (SFR)\n\
blakecoin Blake-256 single sha256 merkle\n\
blake2b Blake2-B (512)\n\
blake2s Blake2-S (256)\n\
bmw BMW 256\n\
c11/flax C11\n\
cryptolight Cryptonight-light\n\
cryptonight Monero\n\
decred Blake-256 14-rounds 180 bytes\n\
dmd-gr Diamond-Groestl\n\
drop Dropcoin\n\
fresh Fresh\n\
geek GeekCash\n\
groestl GroestlCoin\n\
heavy Heavy\n\
jha JHA\n\
keccak Keccak (Old and deprecated)\n\
keccakc Keccak (CreativeCoin)\n\
luffa Luffa\n\
lyra2a40 Lyra2a40\n\
lyra2re Lyra2RE\n\
lyra2rev2 Lyra2REv2\n\
lyra2v3 Lyra2REv3 (Vertcoin)\n\
myr-gr Myriad-Groestl\n\
neoscrypt NeoScrypt(128, 2, 1)\n\
nist5 Nist5\n\
pluck Pluck:128 (Supcoin)\n\
pentablake Pentablake\n\
phi LUX initial algo\n\
phi2 LUX newer algo\n\
quark Quark\n\
qubit Qubit\n\
rainforest RainForest (256)\n\
scrypt scrypt(1024, 1, 1) (default)\n\
scrypt:N scrypt(N, 1, 1)\n\
scrypt-jane:N (with N factor from 4 to 30)\n\
shavite3 Shavite3\n\
sha256d SHA-256d\n\
sia Blake2-B\n\
sib X11 + gost (SibCoin)\n\
skein Skein+Sha (Skeincoin)\n\
skein2 Double Skein (Woodcoin)\n\
skydoge Skydoge (SKY)\n\
sonoa A series of 97 hashes from x17\n\
s3 S3\n\
timetravel Timetravel (Machinecoin)\n\
vanilla Blake-256 8-rounds\n\
x5 X5\n\
x11evo Permuted x11\n\
x11 X11\n\
x12 X12\n\
x13 X13\n\
x14 X14\n\
x15 X15\n\
x16r X16R\n\
x16rv2 X16Rv2 (Raven / Trivechain)\n\
x16s X16S (Pigeon)\n\
x17 X17\n\
x20r X20R\n\
x22 x22\n\
xevan Xevan (BitSend)\n\
yescrypt Yescrypt\n\
yescryptr8 Yescrypt r8\n\
yescryptr16 Yescrypt r16\n\
yescryptr32 Yescrypt r32\n\
zr5 ZR5\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 processors)\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, in seconds (default: 30)\n\
--time-limit=N maximum time [s] to mine before exiting the program.\n\
-T, --timeout=N timeout for long poll and stratum (default: 300 seconds)\n\
-s, --scantime=N upper bound on time spent scanning current work when\n\
long polling is unavailable, in seconds (default: 5)\n\
--randomize Randomize scan range start to reduce duplicates\n\
-f, --diff-factor Divide req. difficulty by this factor (std is 1.0)\n\
-m, --diff-multiplier Multiply difficulty by this factor (std is 1.0)\n\
-n, --nfactor neoscrypt N-Factor\n\
--coinbase-addr=ADDR payout address for solo mining\n\
--coinbase-sig=TEXT data to insert in the coinbase when possible\n\
--max-log-rate limit per-core hashrate logs (default: 5s)\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 requests to change the URL of the mining server\n\
-q, --quiet disable per-thread hashmeter output\n\
--no-color disable colored output\n\
-D, --debug enable debug output\n\
-P, --protocol-dump verbose dump of protocol-level activities\n\
--hide-diff Hide submitted block and net difficulty\n"
#ifdef HAVE_SYSLOG_H
"\
-S, --syslog use system log for output messages\n"
#endif
"\
-B, --background run the miner in the background\n\
--benchmark run in offline benchmark mode\n\
--cputest debug hashes from cpu algorithms\n\
--cpu-affinity set process affinity to cpu core(s), mask 0x3 for cores 0 and 1\n\
--cpu-priority set process priority (default: 0 idle, 2 normal 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\
--max-temp=N Only mine if cpu temp is less than specified value (linux)\n\
--max-rate=N[KMG] Only mine if net hashrate is less than specified value\n\
--max-diff=N Only mine if net difficulty is less than specified value\n\
-c, --config=FILE load a JSON-format configuration file\n\
-V, --version display version information and exit\n\
-h, --help display this help text and exit\n\
";
static char const short_options[] =
#ifdef HAVE_SYSLOG_H
"S"
#endif
"a:b:Bc:CDf:hm:n:p:Px:qr:R:s:t:T:o:u:O:V";
static struct option const options[] = {
{ "algo", 1, NULL, 'a' },
{ "api-bind", 1, NULL, 'b' },
{ "api-remote", 0, NULL, 1030 },
{ "background", 0, NULL, 'B' },
{ "benchmark", 0, NULL, 1005 },
{ "cputest", 0, NULL, 1006 },
{ "cert", 1, NULL, 1001 },
{ "coinbase-addr", 1, NULL, 1016 },
{ "coinbase-sig", 1, NULL, 1015 },
{ "config", 1, 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", 1, NULL, 'f' }, // deprecated (alias)
{ "diff-multiplier", 1, NULL, 'm' },
{ "help", 0, NULL, 'h' },
{ "nfactor", 1, NULL, 'n' },
{ "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 },
{ "max-temp", 1, NULL, 1060 },
{ "max-diff", 1, NULL, 1061 },
{ "max-rate", 1, NULL, 1062 },
{ "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' },
{ "randomize", 0, NULL, 1024 },
{ "scantime", 1, NULL, 's' },
{ "show-diff", 0, NULL, 1013 },
{ "hide-diff", 0, NULL, 1014 },
{ "max-log-rate", 1, NULL, 1019 },
#ifdef HAVE_SYSLOG_H
{ "syslog", 0, NULL, 'S' },
#endif
{ "time-limit", 1, NULL, 1008 },
{ "threads", 1, NULL, 't' },
{ "timeout", 1, NULL, 'T' },
{ "url", 1, NULL, 'o' },
{ "user", 1, NULL, 'u' },
{ "userpass", 1, NULL, 'O' },
{ "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, unsigned long mask) {
cpu_set_t set;
CPU_ZERO(&set);
for (uint8_t i = 0; i < num_cpus; i++) {
// cpu mask
if (mask & (1UL<<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, unsigned long 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, unsigned long mask) { }
#endif
void get_currentalgo(char* buf, int sz)
{
if (opt_algo == ALGO_SCRYPTJANE)
snprintf(buf, sz, "%s:%d", algo_names[opt_algo], opt_scrypt_n);
else
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);
}
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);
}
}
/* compute nbits to get the network diff */
static void calc_network_diff(struct work *work)
{
// sample for diff 43.281 : 1c05ea29
// todo: endian reversed on longpoll could be zr5 specific...
uint32_t nbits = have_longpoll ? work->data[18] : swab32(work->data[18]);
if (opt_algo == ALGO_LBRY) nbits = swab32(work->data[26]);
if (opt_algo == ALGO_DECRED) nbits = work->data[29];
if (opt_algo == ALGO_SIA) nbits = work->data[11]; // unsure if correct
uint32_t bits = (nbits & 0xffffff);
int16_t shift = (swab32(nbits) & 0xff); // 0x1c = 28
double d = (double)0x0000ffff / (double)bits;
for (int m=shift; m < 29; m++) d *= 256.0;
for (int m=29; m < shift; m++) d /= 256.0;
if (opt_algo == ALGO_DECRED && shift == 28) d *= 256.0; // testnet
if (opt_debug_diff)
applog(LOG_DEBUG, "net diff: %f -> shift %u, bits %08x", d, shift, bits);
net_diff = d;
}
static bool work_decode(const json_t *val, struct work *work)
{
int i;
int data_size = 128, target_size = sizeof(work->target);
int adata_sz = 32, atarget_sz = ARRAY_SIZE(work->target);
if (opt_algo == ALGO_DROP || opt_algo == ALGO_NEOSCRYPT || opt_algo == ALGO_ZR5) {
data_size = 80; target_size = 32;
adata_sz = 20;
atarget_sz = target_size / sizeof(uint32_t);
} else if (opt_algo == ALGO_DECRED) {
allow_mininginfo = false;
data_size = 192;
adata_sz = 180/4;
} else if (use_roots) {
data_size = 144;
adata_sz = 36;
}
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);
if ((opt_showdiff || opt_max_diff > 0.) && !allow_mininginfo)
calc_network_diff(work);
work->targetdiff = target_to_diff(work->target);
// for api stats, on longpoll pools
stratum_diff = work->targetdiff;
if (opt_algo == ALGO_DROP || opt_algo == ALGO_ZR5) {
#define POK_BOOL_MASK 0x00008000
#define POK_DATA_MASK 0xFFFF0000
if (work->data[0] & POK_BOOL_MASK) {
applog(LOG_BLUE, "POK received: %08xx", work->data[0]);
zr5_pok = work->data[0] & POK_DATA_MASK;
}
} else if (opt_algo == ALGO_DECRED) {
// some random extradata to make the work unique
work->data[36] = (rand()*4);
work->height = work->data[32];
// required for the getwork pools (multicoin.co)
if (!have_longpoll && work->height > net_blocks + 1) {
char netinfo[64] = { 0 };
if (opt_showdiff && net_diff > 0.) {
if (net_diff != work->targetdiff)
sprintf(netinfo, ", diff %.3f, target %.1f", net_diff, work->targetdiff);
else
sprintf(netinfo, ", diff %.3f", net_diff);
}
applog(LOG_BLUE, "%s block %d%s",
algo_names[opt_algo], work->height, netinfo);
net_blocks = work->height - 1;
}
} else if (opt_algo == ALGO_PHI2) {
if (work->data[0] & (1<<30)) use_roots = true;
else for (i = 20; i < 36; i++) {
if (work->data[i]) { use_roots = true; break; }
}
}
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 || have_longpoll || !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) {
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 && 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 (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;
}
/* 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;
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);