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Add Stratum support

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This commit is contained in:
pooler 2013-06-08 22:15:00 +02:00
parent 3c4eb509a5
commit ee7b535ea6
5 changed files with 1088 additions and 112 deletions
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4
configure.ac
View file

@ -102,8 +102,8 @@ else
JANSSON_LIBS=-ljansson
fi
LIBCURL_CHECK_CONFIG(, 7.10.1, ,
[AC_MSG_ERROR([Missing required libcurl >= 7.10.1])])
LIBCURL_CHECK_CONFIG(, 7.15.2, ,
[AC_MSG_ERROR([Missing required libcurl >= 7.15.2])])
AC_SUBST(JANSSON_LIBS)
AC_SUBST(PTHREAD_FLAGS)

412
cpu-miner.c
View file

@ -1,5 +1,6 @@
/*
* Copyright 2010 Jeff Garzik, 2012 pooler
* Copyright 2010 Jeff Garzik
* Copyright 2012-2013 pooler
*
* 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
@ -116,6 +117,8 @@ bool opt_protocol = false;
static bool opt_benchmark = false;
bool want_longpoll = true;
bool have_longpoll = false;
bool want_stratum = true;
bool have_stratum = false;
static bool submit_old = false;
bool use_syslog = false;
static bool opt_background = false;
@ -136,8 +139,11 @@ char *opt_proxy;
long opt_proxy_type;
struct thr_info *thr_info;
static int work_thr_id;
int longpoll_thr_id;
int longpoll_thr_id = -1;
int stratum_thr_id = -1;
struct work_restart *work_restart = NULL;
static struct stratum_ctx stratum;
pthread_mutex_t applog_lock;
pthread_mutex_t stats_lock;
@ -175,6 +181,7 @@ Options:\n\
-s, --scantime=N upper bound on time spent scanning current work when\n\
long polling is unavailable, in seconds (default: 5)\n\
--no-longpoll disable X-Long-Polling support\n\
--no-stratum disable X-Stratum support\n\
-q, --quiet disable per-thread hashmeter output\n\
-D, --debug enable debug output\n\
-P, --protocol-dump verbose dump of protocol-level activities\n"
@ -212,6 +219,7 @@ static struct option const options[] = {
{ "debug", 0, NULL, 'D' },
{ "help", 0, NULL, 'h' },
{ "no-longpoll", 0, NULL, 1003 },
{ "no-stratum", 0, NULL, 1007 },
{ "pass", 1, NULL, 'p' },
{ "protocol-dump", 0, NULL, 'P' },
{ "proxy", 1, NULL, 'x' },
@ -234,6 +242,10 @@ static struct option const options[] = {
struct work {
uint32_t data[32];
uint32_t target[8];
char job_id[128];
size_t xnonce2_len;
unsigned char xnonce2[32];
};
static struct work g_work;
@ -286,13 +298,37 @@ err_out:
return false;
}
static bool submit_upstream_work(CURL *curl, struct work *work)
static void share_result(int result, const char *reason)
{
char *hexstr = NULL;
json_t *val, *res;
char s[345];
double hashrate;
int i;
hashrate = 0.;
pthread_mutex_lock(&stats_lock);
for (i = 0; i < opt_n_threads; i++)
hashrate += thr_hashrates[i];
result ? accepted_count++ : rejected_count++;
pthread_mutex_unlock(&stats_lock);
sprintf(s, hashrate >= 1e6 ? "%.0f" : "%.2f", 1e-3 * hashrate);
applog(LOG_INFO, "accepted: %lu/%lu (%.2f%%), %s khash/s %s",
accepted_count,
accepted_count + rejected_count,
100. * accepted_count / (accepted_count + rejected_count),
s,
result ? "(yay!!!)" : "(booooo)");
if (opt_debug && reason)
applog(LOG_DEBUG, "DEBUG: reject reason: %s", reason);
}
static bool submit_upstream_work(CURL *curl, struct work *work)
{
char *str = NULL;
json_t *val, *res, *reason;
char s[345];
int i;
bool rc = false;
/* pass if the previous hash is not the current previous hash */
@ -302,58 +338,61 @@ static bool submit_upstream_work(CURL *curl, struct work *work)
return true;
}
/* build hex string */
for (i = 0; i < ARRAY_SIZE(work->data); i++)
le32enc(work->data + i, work->data[i]);
hexstr = bin2hex((unsigned char *)work->data, sizeof(work->data));
if (unlikely(!hexstr)) {
applog(LOG_ERR, "submit_upstream_work OOM");
goto out;
if (have_stratum) {
uint32_t ntime, nonce;
char *ntimestr, *noncestr, *xnonce2str;
if (!work->job_id)
return true;
le32enc(&ntime, work->data[17]);
le32enc(&nonce, work->data[19]);
ntimestr = bin2hex((const unsigned char *)(&ntime), 4);
noncestr = bin2hex((const unsigned char *)(&nonce), 4);
xnonce2str = bin2hex(work->xnonce2, work->xnonce2_len);
sprintf(s,
"{\"method\": \"mining.submit\", \"params\": [\"%s\", \"%s\", \"%s\", \"%s\", \"%s\"], \"id\":4}",
rpc_user, work->job_id, xnonce2str, ntimestr, noncestr);
free(ntimestr);
free(noncestr);
free(xnonce2str);
if (unlikely(!stratum_send_line(&stratum, s))) {
applog(LOG_ERR, "submit_upstream_work stratum_send_line failed");
goto out;
}
} else {
/* build hex string */
for (i = 0; i < ARRAY_SIZE(work->data); i++)
le32enc(work->data + i, work->data[i]);
str = bin2hex((unsigned char *)work->data, sizeof(work->data));
if (unlikely(!str)) {
applog(LOG_ERR, "submit_upstream_work OOM");
goto out;
}
/* build JSON-RPC request */
sprintf(s,
"{\"method\": \"getwork\", \"params\": [ \"%s\" ], \"id\":1}\r\n",
str);
/* issue JSON-RPC request */
val = json_rpc_call(curl, rpc_url, rpc_userpass, s, false, false, NULL);
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), reason ? json_string_value(reason) : NULL);
json_decref(val);
}
/* build JSON-RPC request */
sprintf(s,
"{\"method\": \"getwork\", \"params\": [ \"%s\" ], \"id\":1}\r\n",
hexstr);
/* issue JSON-RPC request */
val = json_rpc_call(curl, rpc_url, rpc_userpass, s, false, false, NULL);
if (unlikely(!val)) {
applog(LOG_ERR, "submit_upstream_work json_rpc_call failed");
goto out;
}
res = json_object_get(val, "result");
hashrate = 0.;
pthread_mutex_lock(&stats_lock);
for (i = 0; i < opt_n_threads; i++)
hashrate += thr_hashrates[i];
json_is_true(res) ? accepted_count++ : rejected_count++;
pthread_mutex_unlock(&stats_lock);
sprintf(s, hashrate >= 1e6 ? "%.0f" : "%.2f", 1e-3 * hashrate);
applog(LOG_INFO, "accepted: %lu/%lu (%.2f%%), %s khash/s %s",
accepted_count,
accepted_count + rejected_count,
100. * accepted_count / (accepted_count + rejected_count),
s,
json_is_true(res) ? "(yay!!!)" : "(booooo)");
if (opt_debug) {
json_t *tmp;
const char *reason;
tmp = json_object_get(val, "reject-reason");
if (tmp && (reason = json_string_value(tmp)))
applog(LOG_DEBUG, "DEBUG: reject reason: %s", reason);
}
json_decref(val);
rc = true;
out:
free(hexstr);
free(str);
return rc;
}
@ -540,9 +579,6 @@ static bool submit_work(struct thr_info *thr, const struct work *work_in)
{
struct workio_cmd *wc;
if (opt_benchmark)
return true;
/* fill out work request message */
wc = calloc(1, sizeof(*wc));
if (!wc)
@ -567,6 +603,54 @@ err_out:
return false;
}
static void stratum_gen_work(struct stratum_ctx *sctx, struct work *work)
{
unsigned char merkle_root[64];
int i;
pthread_mutex_lock(&sctx->work_lock);
strcpy(work->job_id, sctx->job.job_id);
work->xnonce2_len = sctx->xnonce2_size;
memcpy(work->xnonce2, sctx->job.xnonce2, sctx->xnonce2_size);
/* Generate merkle root */
sha256d(merkle_root, sctx->job.coinbase, sctx->job.coinbase_size);
for (i = 0; i < sctx->job.merkle_count; i++) {
memcpy(merkle_root + 32, sctx->job.merkle[i], 32);
sha256d(merkle_root, merkle_root, 64);
}
/* Increment extranonce2 */
for (i = 0; i < sctx->xnonce2_size && !++sctx->job.xnonce2[i]; i++);
/* Assemble block header */
memset(work->data, 0, 128);
work->data[0] = le32dec(sctx->job.version);
for (i = 0; i < 8; i++)
work->data[1 + i] = le32dec((uint32_t *)sctx->job.prevhash + i);
for (i = 0; i < 8; i++)
work->data[9 + i] = be32dec((uint32_t *)merkle_root + i);
work->data[17] = le32dec(sctx->job.ntime);
work->data[18] = le32dec(sctx->job.nbits);
work->data[20] = 0x80000000;
work->data[31] = 0x00000280;
pthread_mutex_unlock(&sctx->work_lock);
if (opt_debug) {
char *xnonce2str = bin2hex(work->xnonce2, sctx->xnonce2_size);
applog(LOG_DEBUG, "DEBUG: job_id='%s' extranonce2=%s ntime=%08x",
work->job_id, xnonce2str, swab32(work->data[17]));
free(xnonce2str);
}
if (opt_algo == ALGO_SCRYPT)
diff_to_target(work->target, sctx->job.diff / 65536.0);
else
diff_to_target(work->target, sctx->job.diff);
}
static void *miner_thread(void *userdata)
{
struct thr_info *mythr = userdata;
@ -602,17 +686,30 @@ static void *miner_thread(void *userdata)
int64_t max64;
int rc;
/* obtain new work from internal workio thread */
pthread_mutex_lock(&g_work_lock);
if (!have_longpoll || time(NULL) >= g_work_time + LP_SCANTIME*3/4
|| work.data[19] >= end_nonce) {
if (unlikely(!get_work(mythr, &g_work))) {
applog(LOG_ERR, "work retrieval failed, exiting "
"mining thread %d", mythr->id);
pthread_mutex_unlock(&g_work_lock);
goto out;
if (have_stratum) {
while (!*g_work.job_id || time(NULL) >= g_work_time + 120)
sleep(1);
pthread_mutex_lock(&g_work_lock);
if (work.data[19] >= end_nonce)
stratum_gen_work(&stratum, &g_work);
} else {
/* obtain new work from internal workio thread */
pthread_mutex_lock(&g_work_lock);
if (!(have_longpoll || have_stratum) ||
time(NULL) >= g_work_time + LP_SCANTIME*3/4 ||
work.data[19] >= end_nonce) {
if (unlikely(!get_work(mythr, &g_work))) {
applog(LOG_ERR, "work retrieval failed, exiting "
"mining thread %d", mythr->id);
pthread_mutex_unlock(&g_work_lock);
goto out;
}
time(&g_work_time);
}
if (have_stratum) {
pthread_mutex_unlock(&g_work_lock);
continue;
}
time(&g_work_time);
}
if (memcmp(work.data, g_work.data, 76)) {
memcpy(&work, &g_work, sizeof(struct work));
@ -623,8 +720,11 @@ static void *miner_thread(void *userdata)
work_restart[thr_id].restart = 0;
/* adjust max_nonce to meet target scan time */
max64 = g_work_time + (have_longpoll ? LP_SCANTIME : opt_scantime)
- time(NULL);
if (have_stratum)
max64 = LP_SCANTIME;
else
max64 = g_work_time + (have_longpoll ? LP_SCANTIME : opt_scantime)
- time(NULL);
max64 *= thr_hashrates[thr_id];
if (max64 <= 0)
max64 = opt_algo == ALGO_SCRYPT ? 0xfffLL : 0x1fffffLL;
@ -679,7 +779,7 @@ static void *miner_thread(void *userdata)
}
/* if nonce found, submit work */
if (rc && !submit_work(mythr, &work))
if (rc && !opt_benchmark && !submit_work(mythr, &work))
break;
}
@ -742,6 +842,11 @@ start:
val = json_rpc_call(curl, lp_url, rpc_userpass, rpc_req,
false, true, &err);
if (have_stratum) {
if (val)
json_decref(val);
goto out;
}
if (likely(val)) {
applog(LOG_INFO, "LONGPOLL detected new block");
soval = json_object_get(json_object_get(val, "result"), "submitold");
@ -783,6 +888,99 @@ out:
return NULL;
}
static bool stratum_handle_response(char *buf)
{
json_t *val, *err_val, *res_val, *id_val;
json_error_t err;
bool ret = false;
val = JSON_LOADS(buf, &err);
if (!val) {
applog(LOG_INFO, "JSON decode failed(%d): %s", err.line, err.text);
goto out;
}
res_val = json_object_get(val, "result");
err_val = json_object_get(val, "error");
id_val = json_object_get(val, "id");
if (!id_val || json_is_null(id_val) || !res_val)
goto out;
share_result(json_is_true(res_val),
err_val ? json_string_value(json_array_get(err_val, 1)) : NULL);
ret = true;
out:
if (val)
json_decref(val);
return ret;
}
static void *stratum_thread(void *userdata)
{
struct thr_info *mythr = userdata;
char *s;
stratum.url = tq_pop(mythr->q, NULL);
if (!stratum.url)
goto out;
applog(LOG_INFO, "Starting Stratum on %s", stratum.url);
while (1) {
int failures = 0;
while (!stratum.curl) {
pthread_mutex_lock(&g_work_lock);
g_work_time = 0;
pthread_mutex_unlock(&g_work_lock);
restart_threads();
if (!stratum_connect(&stratum, stratum.url) ||
!stratum_subscribe(&stratum) ||
!stratum_authorize(&stratum, rpc_user, rpc_pass)) {
stratum_disconnect(&stratum);
if (opt_retries >= 0 && ++failures > opt_retries) {
applog(LOG_ERR, "...terminating workio thread");
tq_push(thr_info[work_thr_id].q, NULL);
goto out;
}
applog(LOG_ERR, "...retry after %d seconds", opt_fail_pause);
sleep(opt_fail_pause);
}
}
if (strcmp(stratum.job.job_id, g_work.job_id) || !g_work_time) {
pthread_mutex_lock(&g_work_lock);
stratum_gen_work(&stratum, &g_work);
time(&g_work_time);
pthread_mutex_unlock(&g_work_lock);
if (stratum.job.clean) {
applog(LOG_INFO, "Stratum detected new block");
restart_threads();
}
}
if (!stratum_socket_full(&stratum, 120)) {
applog(LOG_ERR, "Stratum connection timed out");
s = NULL;
} else
s = stratum_recv_line(&stratum);
if (!s) {
stratum_disconnect(&stratum);
applog(LOG_ERR, "Stratum connection interrupted");
continue;
}
if (!stratum_handle_method(&stratum, s))
stratum_handle_response(s);
free(s);
}
out:
return NULL;
}
static void show_version_and_exit(void)
{
printf("%s\n%s\n", PACKAGE_STRING, curl_version());
@ -883,7 +1081,8 @@ static void parse_arg (int key, char *arg)
case 'o': /* --url */
p = strstr(arg, "://");
if (p) {
if (strncmp(arg, "http://", 7) && strncmp(arg, "https://", 8))
if (strncasecmp(arg, "http://", 7) && strncasecmp(arg, "https://", 8) &&
strncasecmp(arg, "stratum+tcp://", 14))
show_usage_and_exit(1);
free(rpc_url);
rpc_url = strdup(arg);
@ -891,38 +1090,52 @@ static void parse_arg (int key, char *arg)
if (!strlen(arg) || *arg == '/')
show_usage_and_exit(1);
free(rpc_url);
rpc_url = malloc((strlen(arg) + 8) * sizeof(char));
rpc_url = malloc(strlen(arg) + 8);
sprintf(rpc_url, "http://%s", arg);
}
p = strrchr(rpc_url, '@');
if (p) {
char *ap = strstr(rpc_url, "://") + 3;
char *sp, *ap;
*p = '\0';
if (strchr(ap, ':')) {
ap = strstr(rpc_url, "://") + 3;
sp = strchr(ap, ':');
if (sp) {
free(rpc_userpass);
rpc_userpass = strdup(ap);
free(rpc_user);
rpc_user = calloc(sp - ap + 1, 1);
strncpy(rpc_user, ap, sp - ap);
free(rpc_pass);
rpc_pass = strdup(sp + 1);
} else {
free(rpc_user);
rpc_user = strdup(ap);
}
memmove(ap, p + 1, (strlen(p + 1) + 1) * sizeof(char));
memmove(ap, p + 1, strlen(p + 1) + 1);
}
have_stratum = !strncasecmp(rpc_url, "stratum", 7);
break;
case 'O': /* --userpass */
if (!strchr(arg, ':'))
p = strchr(arg, ':');
if (!p)
show_usage_and_exit(1);
free(rpc_userpass);
rpc_userpass = strdup(arg);
free(rpc_user);
rpc_user = calloc(p - arg + 1, 1);
strncpy(rpc_user, arg, p - arg);
free(rpc_pass);
rpc_pass = strdup(p + 1);
break;
case 'x': /* --proxy */
if (!strncmp(arg, "socks4://", 9))
if (!strncasecmp(arg, "socks4://", 9))
opt_proxy_type = CURLPROXY_SOCKS4;
else if (!strncmp(arg, "socks5://", 9))
else if (!strncasecmp(arg, "socks5://", 9))
opt_proxy_type = CURLPROXY_SOCKS5;
#if LIBCURL_VERSION_NUM >= 0x071200
else if (!strncmp(arg, "socks4a://", 10))
else if (!strncasecmp(arg, "socks4a://", 10))
opt_proxy_type = CURLPROXY_SOCKS4A;
else if (!strncmp(arg, "socks5h://", 10))
else if (!strncasecmp(arg, "socks5h://", 10))
opt_proxy_type = CURLPROXY_SOCKS5_HOSTNAME;
#endif
else
@ -932,9 +1145,15 @@ static void parse_arg (int key, char *arg)
break;
case 1005:
opt_benchmark = true;
want_longpoll = false;
want_stratum = false;
break;
case 1003:
want_longpoll = false;
break;
case 1007:
want_stratum = false;
break;
case 'S':
use_syslog = true;
break;
@ -1028,6 +1247,8 @@ int main(int argc, char *argv[])
int i;
rpc_url = strdup(DEF_RPC_URL);
rpc_user = strdup("");
rpc_pass = strdup("");
/* parse command line */
parse_cmdline(argc, argv);
@ -1052,6 +1273,8 @@ int main(int argc, char *argv[])
pthread_mutex_init(&applog_lock, NULL);
pthread_mutex_init(&stats_lock, NULL);
pthread_mutex_init(&g_work_lock, NULL);
pthread_mutex_init(&stratum.sock_lock, NULL);
pthread_mutex_init(&stratum.work_lock, NULL);
#if defined(WIN32)
SYSTEM_INFO sysinfo;
@ -1071,11 +1294,7 @@ int main(int argc, char *argv[])
if (!opt_n_threads)
opt_n_threads = num_processors;
if (!rpc_userpass && (rpc_user || rpc_pass)) {
if (!rpc_user)
rpc_user = strdup("");
if (!rpc_pass)
rpc_pass = strdup("");
if (!rpc_userpass) {
rpc_userpass = malloc(strlen(rpc_user) + strlen(rpc_pass) + 2);
if (!rpc_userpass)
return 1;
@ -1091,7 +1310,7 @@ int main(int argc, char *argv[])
if (!work_restart)
return 1;
thr_info = calloc(opt_n_threads + 2, sizeof(*thr));
thr_info = calloc(opt_n_threads + 3, sizeof(*thr));
if (!thr_info)
return 1;
@ -1113,8 +1332,8 @@ int main(int argc, char *argv[])
return 1;
}
/* init longpoll thread info */
if (want_longpoll) {
if (want_longpoll && !have_stratum) {
/* init longpoll thread info */
longpoll_thr_id = opt_n_threads + 1;
thr = &thr_info[longpoll_thr_id];
thr->id = longpoll_thr_id;
@ -1127,8 +1346,25 @@ int main(int argc, char *argv[])
applog(LOG_ERR, "longpoll thread create failed");
return 1;
}
} else
longpoll_thr_id = -1;
}
if (want_stratum) {
/* init stratum thread info */
stratum_thr_id = opt_n_threads + 2;
thr = &thr_info[stratum_thr_id];
thr->id = stratum_thr_id;
thr->q = tq_new();
if (!thr->q)
return 1;
/* start stratum thread */
if (unlikely(pthread_create(&thr->pth, NULL, stratum_thread, thr))) {
applog(LOG_ERR, "stratum thread create failed");
return 1;
}
if (have_stratum)
tq_push(thr_info[stratum_thr_id].q, strdup(rpc_url));
}
/* start mining threads */
for (i = 0; i < opt_n_threads; i++) {

59
miner.h
View file

@ -42,6 +42,7 @@ void *alloca (size_t);
enum {
LOG_ERR,
LOG_WARNING,
LOG_NOTICE,
LOG_INFO,
LOG_DEBUG,
};
@ -121,8 +122,17 @@ static inline void le32enc(void *pp, uint32_t x)
}
#endif
#if JANSSON_MAJOR_VERSION >= 2
#define JSON_LOADS(str, err_ptr) json_loads((str), 0, (err_ptr))
#else
#define JSON_LOADS(str, err_ptr) json_loads((str), (err_ptr))
#endif
#define USER_AGENT PACKAGE_NAME "/" PACKAGE_VERSION
void sha256_init(uint32_t *state);
void sha256_transform(uint32_t *state, const uint32_t *block, int swap);
void sha256d(unsigned char *hash, const unsigned char *data, int len);
#if defined(__ARM_NEON__) || defined(__i386__) || defined(__x86_64__)
#define HAVE_SHA256_4WAY 1
@ -155,12 +165,15 @@ extern bool opt_protocol;
extern int opt_timeout;
extern bool want_longpoll;
extern bool have_longpoll;
extern bool want_stratum;
extern bool have_stratum;
extern char *opt_proxy;
extern long opt_proxy_type;
extern bool use_syslog;
extern pthread_mutex_t applog_lock;
extern struct thr_info *thr_info;
extern int longpoll_thr_id;
extern int stratum_thr_id;
extern struct work_restart *work_restart;
extern void applog(int prio, const char *fmt, ...);
@ -171,6 +184,52 @@ extern bool hex2bin(unsigned char *p, const char *hexstr, size_t len);
extern int timeval_subtract(struct timeval *result, struct timeval *x,
struct timeval *y);
extern bool fulltest(const uint32_t *hash, const uint32_t *target);
extern void diff_to_target(uint32_t *target, double diff);
struct stratum_job {
char *job_id;
unsigned char prevhash[32];
size_t coinbase_size;
unsigned char *coinbase;
unsigned char *xnonce2;
int merkle_count;
unsigned char **merkle;
unsigned char version[4];
unsigned char nbits[4];
unsigned char ntime[4];
bool clean;
double diff;
};
struct stratum_ctx {
char *url;
CURL *curl;
char *curl_url;
char curl_err_str[CURL_ERROR_SIZE];
curl_socket_t sock;
size_t sockbuf_size;
char *sockbuf;
pthread_mutex_t sock_lock;
double next_diff;
char *session_id;
size_t xnonce1_size;
unsigned char *xnonce1;
size_t xnonce2_size;
struct stratum_job job;
pthread_mutex_t work_lock;
};
bool stratum_socket_full(struct stratum_ctx *sctx, int timeout);
bool stratum_send_line(struct stratum_ctx *sctx, char *s);
char *stratum_recv_line(struct stratum_ctx *sctx);
bool stratum_connect(struct stratum_ctx *sctx, const char *url);
void stratum_disconnect(struct stratum_ctx *sctx);
bool stratum_subscribe(struct stratum_ctx *sctx);
bool stratum_authorize(struct stratum_ctx *sctx, const char *user, const char *pass);
bool stratum_handle_method(struct stratum_ctx *sctx, const char *s);
struct thread_q;

34
sha2.c
View file

@ -1,5 +1,6 @@
/*
* Copyright 2011 ArtForz, 2011-2012 pooler
* Copyright 2011 ArtForz
* Copyright 2011-2013 pooler
*
* 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
@ -180,7 +181,7 @@ static const uint32_t sha256d_hash1[16] = {
0x00000000, 0x00000000, 0x00000000, 0x00000100
};
static void sha256d(uint32_t *hash, uint32_t *data)
static void sha256d_80(uint32_t *hash, const uint32_t *data)
{
uint32_t S[16];
@ -192,6 +193,31 @@ static void sha256d(uint32_t *hash, uint32_t *data)
sha256_transform(hash, S, 0);
}
void sha256d(unsigned char *hash, const unsigned char *data, int len)
{
uint32_t S[16], T[16];
int i, r;
sha256_init(S);
for (r = len; r > -9; r -= 64) {
if (r < 64)
memset(T, 0, 64);
memcpy(T, data + len - r, r > 64 ? 64 : (r < 0 ? 0 : r));
if (r < 64)
((unsigned char *)T)[r] = 0x80;
for (i = 0; i < 16; i++)
T[i] = be32dec(T + i);
if (r < 56)
T[15] = 8 * len;
sha256_transform(S, T, 0);
}
memcpy(S + 8, sha256d_hash1 + 8, 32);
sha256_init(T);
sha256_transform(T, S, 0);
for (i = 0; i < 8; i++)
be32enc((uint32_t *)hash + i, T[i]);
}
static inline void sha256d_preextend(uint32_t *W)
{
W[16] = s1(W[14]) + W[ 9] + s0(W[ 1]) + W[ 0];
@ -477,7 +503,7 @@ static inline int scanhash_sha256d_4way(int thr_id, uint32_t *pdata,
for (i = 0; i < 4; i++) {
if (hash[4 * 7 + i] <= Htarg) {
pdata[19] = data[4 * 3 + i];
sha256d(hash, pdata);
sha256d_80(hash, pdata);
if (fulltest(hash, ptarget)) {
*hashes_done = n - first_nonce + 1;
return 1;
@ -523,7 +549,7 @@ int scanhash_sha256d(int thr_id, uint32_t *pdata, const uint32_t *ptarget,
sha256d_ms(hash, data, midstate, prehash);
if (hash[7] <= Htarg) {
pdata[19] = data[3];
sha256d(hash, pdata);
sha256d_80(hash, pdata);
if (fulltest(hash, ptarget)) {
*hashes_done = n - first_nonce + 1;
return 1;

691
util.c
View file

@ -1,5 +1,6 @@
/*
* Copyright 2010 Jeff Garzik, 2012 pooler
* Copyright 2010 Jeff Garzik
* Copyright 2012-2013 pooler
*
* 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
@ -25,6 +26,7 @@
#include <winsock2.h>
#include <mstcpip.h>
#else
#include <errno.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <netinet/tcp.h>
@ -47,6 +49,7 @@ struct upload_buffer {
struct header_info {
char *lp_path;
char *reason;
char *stratum_url;
};
struct tq_ent {
@ -235,6 +238,11 @@ static size_t resp_hdr_cb(void *ptr, size_t size, size_t nmemb, void *user_data)
val = NULL;
}
if (!strcasecmp("X-Stratum", key)) {
hi->stratum_url = val; /* steal memory reference */
val = NULL;
}
out:
free(key);
free(val);
@ -242,7 +250,7 @@ out:
}
#if LIBCURL_VERSION_NUM >= 0x070f06
static int json_rpc_call_lp_cb(void *userdata, curl_socket_t fd,
static int sockopt_keepalive_cb(void *userdata, curl_socket_t fd,
curlsocktype purpose)
{
int keepalive = 1;
@ -333,7 +341,7 @@ json_t *json_rpc_call(CURL *curl, const char *url,
}
#if LIBCURL_VERSION_NUM >= 0x070f06
if (longpoll)
curl_easy_setopt(curl, CURLOPT_SOCKOPTFUNCTION, json_rpc_call_lp_cb);
curl_easy_setopt(curl, CURLOPT_SOCKOPTFUNCTION, sockopt_keepalive_cb);
#endif
curl_easy_setopt(curl, CURLOPT_POST, 1);
@ -346,13 +354,10 @@ json_t *json_rpc_call(CURL *curl, const char *url,
sprintf(len_hdr, "Content-Length: %lu",
(unsigned long) upload_data.len);
headers = curl_slist_append(headers,
"Content-Type: application/json");
headers = curl_slist_append(headers, "Content-Type: application/json");
headers = curl_slist_append(headers, len_hdr);
headers = curl_slist_append(headers,
"User-Agent: " PACKAGE_NAME "/" PACKAGE_VERSION);
headers = curl_slist_append(headers,
"X-Mining-Extensions: midstate");
headers = curl_slist_append(headers, "User-Agent: " USER_AGENT);
headers = curl_slist_append(headers, "X-Mining-Extensions: midstate");
headers = curl_slist_append(headers, "Accept:"); /* disable Accept hdr*/
headers = curl_slist_append(headers, "Expect:"); /* disable Expect hdr*/
@ -367,24 +372,27 @@ json_t *json_rpc_call(CURL *curl, const char *url,
goto err_out;
}
/* If X-Stratum was found, activate Stratum */
if (want_stratum && hi.stratum_url &&
!strncasecmp(hi.stratum_url, "stratum+tcp://", 14)) {
have_stratum = true;
tq_push(thr_info[stratum_thr_id].q, hi.stratum_url);
hi.stratum_url = NULL;
}
/* If X-Long-Polling was found, activate long polling */
if (lp_scanning && hi.lp_path) {
if (lp_scanning && hi.lp_path && !have_stratum) {
have_longpoll = true;
tq_push(thr_info[longpoll_thr_id].q, hi.lp_path);
} else
free(hi.lp_path);
hi.lp_path = NULL;
hi.lp_path = NULL;
}
if (!all_data.buf) {
applog(LOG_ERR, "Empty data received in json_rpc_call.");
goto err_out;
}
#if JANSSON_VERSION_HEX >= 0x020000
val = json_loads(all_data.buf, 0, &err);
#else
val = json_loads(all_data.buf, &err);
#endif
val = JSON_LOADS(all_data.buf, &err);
if (!val) {
applog(LOG_ERR, "JSON decode failed(%d): %s", err.line, err.text);
goto err_out;
@ -426,6 +434,9 @@ json_t *json_rpc_call(CURL *curl, const char *url,
return val;
err_out:
free(hi.lp_path);
free(hi.reason);
free(hi.stratum_url);
databuf_free(&all_data);
curl_slist_free_all(headers);
curl_easy_reset(curl);
@ -542,6 +553,650 @@ bool fulltest(const uint32_t *hash, const uint32_t *target)
return rc;
}
void diff_to_target(uint32_t *target, double diff)
{
uint64_t m;
int k;
for (k = 6; k > 0 && diff > 1.0; k--)
diff /= 4294967296.0;
m = 4294901760.0 / diff;
if (m == 0 && k == 6)
memset(target, 0xff, 32);
else {
memset(target, 0, 32);
target[k] = (uint32_t)m;
target[k + 1] = (uint32_t)(m >> 32);
}
}
#ifdef WIN32
#define socket_blocks() (WSAGetLastError() == WSAEWOULDBLOCK)
#else
#define socket_blocks() (errno == EAGAIN || errno == EWOULDBLOCK)
#endif
static bool send_line(curl_socket_t sock, char *s)
{
ssize_t len, sent = 0;
len = strlen(s);
s[len++] = '\n';
while (len > 0) {
struct timeval timeout = {0, 0};
ssize_t n;
fd_set wd;
FD_ZERO(&wd);
FD_SET(sock, &wd);
if (select(sock + 1, NULL, &wd, NULL, &timeout) < 1)
return false;
n = send(sock, s + sent, len, 0);
if (n < 0) {
if (!socket_blocks())
return false;
n = 0;
}
sent += n;
len -= n;
}
return true;
}
bool stratum_send_line(struct stratum_ctx *sctx, char *s)
{
bool ret = false;
if (opt_protocol)
applog(LOG_DEBUG, "> %s", s);
pthread_mutex_lock(&sctx->sock_lock);
ret = send_line(sctx->sock, s);
pthread_mutex_unlock(&sctx->sock_lock);
return ret;
}
static bool socket_full(curl_socket_t sock, int timeout)
{
struct timeval tv;
fd_set rd;
FD_ZERO(&rd);
FD_SET(sock, &rd);
tv.tv_sec = timeout;
tv.tv_usec = 0;
if (select(sock + 1, &rd, NULL, NULL, &tv) > 0)
return true;
return false;
}
bool stratum_socket_full(struct stratum_ctx *sctx, int timeout)
{
return strlen(sctx->sockbuf) || socket_full(sctx->sock, timeout);
}
#define RBUFSIZE 2048
#define RECVSIZE (RBUFSIZE - 4)
static void stratum_buffer_append(struct stratum_ctx *sctx, const char *s)
{
size_t old, new;
old = strlen(sctx->sockbuf);
new = old + strlen(s) + 1;
if (new >= sctx->sockbuf_size) {
sctx->sockbuf_size = new + (RBUFSIZE - (new % RBUFSIZE));
sctx->sockbuf = realloc(sctx->sockbuf, sctx->sockbuf_size);
}
strcpy(sctx->sockbuf + old, s);
}
char *stratum_recv_line(struct stratum_ctx *sctx)
{
ssize_t len, buflen;
char *tok, *sret = NULL;
if (!strstr(sctx->sockbuf, "\n")) {
bool ret = true;
time_t rstart;
time(&rstart);
if (!socket_full(sctx->sock, 60)) {
applog(LOG_ERR, "stratum_recv_line timed out");
goto out;
}
do {
char s[RBUFSIZE];
ssize_t n;
memset(s, 0, RBUFSIZE);
n = recv(sctx->sock, s, RECVSIZE, 0);
if (!n) {
ret = false;
break;
}
if (n < 0) {
if (!socket_blocks() || !socket_full(sctx->sock, 1)) {
ret = false;
break;
}
} else
stratum_buffer_append(sctx, s);
} while (time(NULL) - rstart < 60 && !strstr(sctx->sockbuf, "\n"));
if (!ret) {
applog(LOG_ERR, "stratum_recv_line failed");
goto out;
}
}
buflen = strlen(sctx->sockbuf);
tok = strtok(sctx->sockbuf, "\n");
if (!tok) {
applog(LOG_ERR, "stratum_recv_line failed to parse a newline-terminated string");
goto out;
}
sret = strdup(tok);
len = strlen(sret);
if (buflen > len + 1)
memmove(sctx->sockbuf, sctx->sockbuf + len + 1, buflen - len + 1);
else
sctx->sockbuf[0] = '\0';
out:
if (sret && opt_protocol)
applog(LOG_DEBUG, "< %s", sret);
return sret;
}
#if LIBCURL_VERSION_NUM >= 0x071101
static curl_socket_t opensocket_grab_cb(void *clientp, curlsocktype purpose,
struct curl_sockaddr *addr)
{
curl_socket_t *sock = clientp;
*sock = socket(addr->family, addr->socktype, addr->protocol);
return *sock;
}
#endif
bool stratum_connect(struct stratum_ctx *sctx, const char *url)
{
CURL *curl;
int rc;
pthread_mutex_lock(&sctx->sock_lock);
if (sctx->curl)
curl_easy_cleanup(sctx->curl);
sctx->curl = curl_easy_init();
if (!sctx->curl) {
applog(LOG_ERR, "CURL initialization failed");
pthread_mutex_unlock(&sctx->sock_lock);
return false;
}
curl = sctx->curl;
if (!sctx->sockbuf) {
sctx->sockbuf = calloc(RBUFSIZE, 1);
sctx->sockbuf_size = RBUFSIZE;
}
sctx->sockbuf[0] = '\0';
pthread_mutex_unlock(&sctx->sock_lock);
if (url != sctx->url) {
free(sctx->url);
sctx->url = strdup(url);
}
free(sctx->curl_url);
sctx->curl_url = malloc(strlen(url));
sprintf(sctx->curl_url, "http%s", strstr(url, "://"));
if (opt_protocol)
curl_easy_setopt(curl, CURLOPT_VERBOSE, 1);
curl_easy_setopt(curl, CURLOPT_URL, sctx->curl_url);
curl_easy_setopt(curl, CURLOPT_FRESH_CONNECT, 1);
curl_easy_setopt(curl, CURLOPT_CONNECTTIMEOUT, 30);
curl_easy_setopt(curl, CURLOPT_ERRORBUFFER, sctx->curl_err_str);
curl_easy_setopt(curl, CURLOPT_NOSIGNAL, 1);
curl_easy_setopt(curl, CURLOPT_TCP_NODELAY, 1);
if (opt_proxy && opt_proxy_type != CURLPROXY_HTTP) {
curl_easy_setopt(curl, CURLOPT_PROXY, opt_proxy);
curl_easy_setopt(curl, CURLOPT_PROXYTYPE, opt_proxy_type);
} else if (getenv("http_proxy")) {
if (getenv("all_proxy"))
curl_easy_setopt(curl, CURLOPT_PROXY, getenv("all_proxy"));
else if (getenv("ALL_PROXY"))
curl_easy_setopt(curl, CURLOPT_PROXY, getenv("ALL_PROXY"));
else
curl_easy_setopt(curl, CURLOPT_PROXY, "");
}
#if LIBCURL_VERSION_NUM >= 0x070f06
curl_easy_setopt(curl, CURLOPT_SOCKOPTFUNCTION, sockopt_keepalive_cb);
#endif
#if LIBCURL_VERSION_NUM >= 0x071101
curl_easy_setopt(curl, CURLOPT_OPENSOCKETFUNCTION, opensocket_grab_cb);
curl_easy_setopt(curl, CURLOPT_OPENSOCKETDATA, &sctx->sock);
#endif
curl_easy_setopt(curl, CURLOPT_CONNECT_ONLY, 1);
rc = curl_easy_perform(curl);
if (rc) {
applog(LOG_ERR, "Stratum connection failed: %s", sctx->curl_err_str);
curl_easy_cleanup(curl);
sctx->curl = NULL;
return false;
}
#if LIBCURL_VERSION_NUM < 0x071101
/* CURLINFO_LASTSOCKET is broken on Win64; only use it as a last resort */
curl_easy_getinfo(curl, CURLINFO_LASTSOCKET, (long *)&sctx->sock);
#endif
return true;
}
void stratum_disconnect(struct stratum_ctx *sctx)
{
pthread_mutex_lock(&sctx->sock_lock);
if (sctx->curl) {
curl_easy_cleanup(sctx->curl);
sctx->curl = NULL;
sctx->sockbuf[0] = '\0';
}
pthread_mutex_unlock(&sctx->sock_lock);
}
static const char *get_stratum_session_id(json_t *val)
{
json_t *arr_val;
int i, n;
arr_val = json_array_get(val, 0);
if (!arr_val || !json_is_array(arr_val))
return NULL;
n = json_array_size(arr_val);
for (i = 0; i < n; i++) {
const char *notify;
json_t *arr = json_array_get(arr_val, i);
if (!arr || !json_is_array(arr))
break;
notify = json_string_value(json_array_get(arr, 0));
if (!notify)
continue;
if (!strcasecmp(notify, "mining.notify"))
return json_string_value(json_array_get(arr, 1));
}
return NULL;
}
bool stratum_subscribe(struct stratum_ctx *sctx)
{
char *s, *sret = NULL;
const char *sid, *xnonce1;
int xn2_size;
json_t *val = NULL, *res_val, *err_val;
json_error_t err;
bool ret = false, retry = false;
start:
s = malloc(128 + (sctx->session_id ? strlen(sctx->session_id) : 0));
if (retry)
sprintf(s, "{\"id\": 1, \"method\": \"mining.subscribe\", \"params\": []}");
else if (sctx->session_id)
sprintf(s, "{\"id\": 1, \"method\": \"mining.subscribe\", \"params\": [\"" USER_AGENT "\", \"%s\"]}", sctx->session_id);
else
sprintf(s, "{\"id\": 1, \"method\": \"mining.subscribe\", \"params\": [\"" USER_AGENT "\"]}");
if (!stratum_send_line(sctx, s))
goto out;
if (!socket_full(sctx->sock, 30)) {
applog(LOG_ERR, "stratum_subscribe timed out");
goto out;
}
sret = stratum_recv_line(sctx);
if (!sret)
goto out;
val = JSON_LOADS(sret, &err);
free(sret);
if (!val) {
applog(LOG_ERR, "JSON decode failed(%d): %s", err.line, err.text);
goto out;
}
res_val = json_object_get(val, "result");
err_val = json_object_get(val, "error");
if (!res_val || json_is_null(res_val) ||
(err_val && !json_is_null(err_val))) {
if (opt_debug || retry) {
free(s);
if (err_val)
s = json_dumps(err_val, JSON_INDENT(3));
else
s = strdup("(unknown reason)");
applog(LOG_ERR, "JSON-RPC call failed: %s", s);
}
goto out;
}
sid = get_stratum_session_id(res_val);
if (opt_debug && !sid)
applog(LOG_DEBUG, "Failed to get Stratum session id");
xnonce1 = json_string_value(json_array_get(res_val, 1));
if (!xnonce1) {
applog(LOG_ERR, "Failed to get extranonce1");
goto out;
}
xn2_size = json_integer_value(json_array_get(res_val, 2));
if (!xn2_size) {
applog(LOG_ERR, "Failed to get extranonce2_size");
goto out;
}
pthread_mutex_lock(&sctx->work_lock);
free(sctx->session_id);
free(sctx->xnonce1);
sctx->session_id = sid ? strdup(sid) : NULL;
sctx->xnonce1_size = strlen(xnonce1) / 2;
sctx->xnonce1 = malloc(sctx->xnonce1_size);
hex2bin(sctx->xnonce1, xnonce1, sctx->xnonce1_size);
sctx->xnonce2_size = xn2_size;
sctx->next_diff = 1.0;
pthread_mutex_unlock(&sctx->work_lock);
if (opt_debug && sid)
applog(LOG_DEBUG, "Stratum session id: %s", sctx->session_id);
ret = true;
out:
free(s);
if (val)
json_decref(val);
if (!ret) {
if (sret && !retry) {
retry = true;
goto start;
}
}
return ret;
}
bool stratum_authorize(struct stratum_ctx *sctx, const char *user, const char *pass)
{
json_t *val = NULL, *res_val, *err_val;
char *s, *sret;
json_error_t err;
bool ret = false;
s = malloc(80 + strlen(user) + strlen(pass));
sprintf(s, "{\"id\": 2, \"method\": \"mining.authorize\", \"params\": [\"%s\", \"%s\"]}",
user, pass);
if (!stratum_send_line(sctx, s))
goto out;
while (1) {
sret = stratum_recv_line(sctx);
if (!sret)
goto out;
if (!stratum_handle_method(sctx, sret))
break;
free(sret);
}
val = JSON_LOADS(sret, &err);
free(sret);
if (!val) {
applog(LOG_ERR, "JSON decode failed(%d): %s", err.line, err.text);
goto out;
}
res_val = json_object_get(val, "result");
err_val = json_object_get(val, "error");
if (!res_val || !json_is_true(res_val) ||
(err_val && !json_is_null(err_val))) {
applog(LOG_ERR, "Stratum authentication failed");
goto out;
}
ret = true;
out:
free(s);
if (val)
json_decref(val);
return ret;
}
static bool stratum_notify(struct stratum_ctx *sctx, json_t *params)
{
const char *job_id, *prevhash, *coinb1, *coinb2, *version, *nbits, *ntime;
size_t coinb1_size, coinb2_size;
bool clean, ret = false;
int merkle_count, i;
json_t *merkle_arr;
unsigned char **merkle;
job_id = json_string_value(json_array_get(params, 0));
prevhash = json_string_value(json_array_get(params, 1));
coinb1 = json_string_value(json_array_get(params, 2));
coinb2 = json_string_value(json_array_get(params, 3));
merkle_arr = json_array_get(params, 4);
if (!merkle_arr || !json_is_array(merkle_arr))
goto out;
merkle_count = json_array_size(merkle_arr);
version = json_string_value(json_array_get(params, 5));
nbits = json_string_value(json_array_get(params, 6));
ntime = json_string_value(json_array_get(params, 7));
clean = json_is_true(json_array_get(params, 8));
if (!job_id || !prevhash || !coinb1 || !coinb2 || !version || !nbits || !ntime ||
strlen(prevhash) != 64 || strlen(version) != 8 ||
strlen(nbits) != 8 || strlen(ntime) != 8) {
applog(LOG_ERR, "Stratum notify: invalid parameters");
goto out;
}
merkle = malloc(merkle_count * sizeof(char *));
for (i = 0; i < merkle_count; i++) {
const char *s = json_string_value(json_array_get(merkle_arr, i));
if (!s || strlen(s) != 64) {
while (i--)
free(merkle[i]);
free(merkle);
applog(LOG_ERR, "Stratum notify: invalid Merkle branch");
goto out;
}
merkle[i] = malloc(32);
hex2bin(merkle[i], s, 32);
}
pthread_mutex_lock(&sctx->work_lock);
coinb1_size = strlen(coinb1) / 2;
coinb2_size = strlen(coinb2) / 2;
sctx->job.coinbase_size = coinb1_size + sctx->xnonce1_size +
sctx->xnonce2_size + coinb2_size;
sctx->job.coinbase = realloc(sctx->job.coinbase, sctx->job.coinbase_size);
sctx->job.xnonce2 = sctx->job.coinbase + coinb1_size + sctx->xnonce1_size;
hex2bin(sctx->job.coinbase, coinb1, coinb1_size);
memcpy(sctx->job.coinbase + coinb1_size, sctx->xnonce1, sctx->xnonce1_size);
if (!sctx->job.job_id || strcmp(sctx->job.job_id, job_id))
memset(sctx->job.xnonce2, 0, sctx->xnonce2_size);
hex2bin(sctx->job.xnonce2 + sctx->xnonce2_size, coinb2, coinb2_size);
free(sctx->job.job_id);
sctx->job.job_id = strdup(job_id);
hex2bin(sctx->job.prevhash, prevhash, 32);
for (i = 0; i < sctx->job.merkle_count; i++)
free(sctx->job.merkle[i]);
free(sctx->job.merkle);
sctx->job.merkle = merkle;
sctx->job.merkle_count = merkle_count;
hex2bin(sctx->job.version, version, 4);
hex2bin(sctx->job.nbits, nbits, 4);
hex2bin(sctx->job.ntime, ntime, 4);
sctx->job.clean = clean;
sctx->job.diff = sctx->next_diff;
pthread_mutex_unlock(&sctx->work_lock);
ret = true;
out:
return ret;
}
static bool stratum_set_difficulty(struct stratum_ctx *sctx, json_t *params)
{
double diff;
diff = json_number_value(json_array_get(params, 0));
if (diff == 0)
return false;
pthread_mutex_lock(&sctx->work_lock);
sctx->next_diff = diff;
pthread_mutex_unlock(&sctx->work_lock);
if (opt_debug)
applog(LOG_DEBUG, "Stratum difficulty set to %g", diff);
return true;
}
static bool stratum_reconnect(struct stratum_ctx *sctx, json_t *params)
{
json_t *port_val;
const char *host;
int port;
host = json_string_value(json_array_get(params, 0));
port_val = json_array_get(params, 1);
if (json_is_string(port_val))
port = atoi(json_string_value(port_val));
else
port = json_integer_value(port_val);
if (!host || !port)
return false;
free(sctx->url);
sctx->url = malloc(32 + strlen(host));
sprintf(sctx->url, "stratum+tcp://%s:%d", host, port);
applog(LOG_NOTICE, "Server requested reconnection to %s", sctx->url);
stratum_disconnect(sctx);
return true;
}
static bool stratum_get_version(struct stratum_ctx *sctx, json_t *id)
{
char *s;
json_t *val;
bool ret;
if (!id || json_is_null(id))
return false;
val = json_object();
json_object_set(val, "id", id);
json_object_set_new(val, "error", json_null());
json_object_set_new(val, "result", json_string(USER_AGENT));
s = json_dumps(val, 0);
ret = stratum_send_line(sctx, s);
json_decref(val);
free(s);
return ret;
}
static bool stratum_show_message(struct stratum_ctx *sctx, json_t *id, json_t *params)
{
char *s;
json_t *val;
bool ret;
val = json_array_get(params, 0);
if (val)
applog(LOG_NOTICE, "MESSAGE FROM SERVER: %s", json_string_value(val));
if (!id || json_is_null(id))
return true;
val = json_object();
json_object_set(val, "id", id);
json_object_set_new(val, "error", json_null());
json_object_set_new(val, "result", json_true());
s = json_dumps(val, 0);
ret = stratum_send_line(sctx, s);
json_decref(val);
free(s);
return ret;
}
bool stratum_handle_method(struct stratum_ctx *sctx, const char *s)
{
json_t *val, *id, *params;
json_error_t err;
const char *method;
bool ret = false;
val = JSON_LOADS(s, &err);
if (!val) {
applog(LOG_ERR, "JSON decode failed(%d): %s", err.line, err.text);
goto out;
}
method = json_string_value(json_object_get(val, "method"));
if (!method)
goto out;
id = json_object_get(val, "id");
params = json_object_get(val, "params");
if (!strcasecmp(method, "mining.notify")) {
ret = stratum_notify(sctx, params);
goto out;
}
if (!strcasecmp(method, "mining.set_difficulty")) {
ret = stratum_set_difficulty(sctx, params);
goto out;
}
if (!strcasecmp(method, "client.reconnect")) {
ret = stratum_reconnect(sctx, params);
goto out;
}
if (!strcasecmp(method, "client.get_version")) {
ret = stratum_get_version(sctx, id);
goto out;
}
if (!strcasecmp(method, "client.show_message")) {
ret = stratum_show_message(sctx, id, params);
goto out;
}
out:
if (val)
json_decref(val);
return ret;
}
struct thread_q *tq_new(void)
{
struct thread_q *tq;