GOSTcoin support for ccminer CUDA miner project, compatible with most nvidia cards
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#include <ccminer-config.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdbool.h>
#include <inttypes.h>
#include <unistd.h>
#include <math.h>
#include <sys/time.h>
#include <time.h>
#include <signal.h>
#include <curl/curl.h>
#include <miner.h>
#include "sia-rpc.h"
static bool sia_debug_diff = false;
extern int share_result(int result, int pooln, double sharediff, const char *reason);
/* compute nbits to get the network diff */
static void calc_network_diff(struct work *work)
{
uint32_t nbits = work->data[11]; // unsure if correct
uint32_t bits = (nbits & 0xffffff);
int16_t shift = (swab32(nbits) & 0xff); // 0x1c = 28
uint64_t diffone = 0x0000FFFF00000000ull;
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 (sia_debug_diff)
applog(LOG_DEBUG, "net diff: %f -> shift %u, bits %08x", d, shift, bits);
net_diff = d;
}
// ---- SIA LONGPOLL --------------------------------------------------------------------------------
struct data_buffer {
void *buf;
size_t len;
};
static size_t sia_data_cb(const void *ptr, size_t size, size_t nmemb,
void *user_data)
{
struct data_buffer *db = (struct data_buffer *)user_data;
size_t len = size * nmemb;
size_t oldlen, newlen;
void *newmem;
static const uchar zero = 0;
oldlen = db->len;
newlen = oldlen + len;
newmem = realloc(db->buf, newlen + 1);
if (!newmem)
return 0;
db->buf = newmem;
db->len = newlen;
memcpy((char*)db->buf + oldlen, ptr, len);
memcpy((char*)db->buf + newlen, &zero, 1); /* null terminate */
return len;
}
char* sia_getheader(CURL *curl, struct pool_infos *pool)
{
char curl_err_str[CURL_ERROR_SIZE] = { 0 };
struct data_buffer all_data = { 0 };
struct curl_slist *headers = NULL;
char data[256] = { 0 };
char url[512*3];
// nanopool
snprintf(url, sizeof(url), "%s/miner/header?address=%s&worker=%s", //&longpoll
pool->url, pool->user, pool->pass);
if (opt_protocol)
curl_easy_setopt(curl, CURLOPT_VERBOSE, 1);
curl_easy_setopt(curl, CURLOPT_URL, url);
curl_easy_setopt(curl, CURLOPT_POST, 0);
curl_easy_setopt(curl, CURLOPT_ENCODING, "");
curl_easy_setopt(curl, CURLOPT_FAILONERROR, 0);
curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 1);
curl_easy_setopt(curl, CURLOPT_TCP_NODELAY, 1);
curl_easy_setopt(curl, CURLOPT_TIMEOUT, opt_timeout);
curl_easy_setopt(curl, CURLOPT_NOSIGNAL, 1);
curl_easy_setopt(curl, CURLOPT_ERRORBUFFER, curl_err_str);
curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, sia_data_cb);
curl_easy_setopt(curl, CURLOPT_WRITEDATA, &all_data);
headers = curl_slist_append(headers, "Accept: application/octet-stream");
headers = curl_slist_append(headers, "Expect:"); // disable Expect hdr
headers = curl_slist_append(headers, "User-Agent: Sia-Agent"); // required for now
// headers = curl_slist_append(headers, "User-Agent: " USER_AGENT);
// headers = curl_slist_append(headers, "X-Mining-Extensions: longpoll");
curl_easy_setopt(curl, CURLOPT_HTTPHEADER, headers);
int rc = curl_easy_perform(curl);
if (rc && strlen(curl_err_str)) {
applog(LOG_WARNING, "%s", curl_err_str);
}
if (all_data.len >= 112)
cbin2hex(data, (const char*) all_data.buf, 112);
if (opt_protocol || all_data.len != 112)
applog(LOG_DEBUG, "received %d bytes: %s", (int) all_data.len, data);
curl_slist_free_all(headers);
return rc == 0 && all_data.len ? strdup(data) : NULL;
}
bool sia_work_decode(const char *hexdata, struct work *work)
{
uint8_t target[32];
if (!work) return false;
hex2bin((uchar*)target, &hexdata[0], 32);
swab256(work->target, target);
work->targetdiff = target_to_diff(work->target);
hex2bin((uchar*)work->data, &hexdata[64], 80);
// high 16 bits of the 64 bits nonce
work->data[9] = rand() << 16;
// use work ntime as job id
cbin2hex(work->job_id, (const char*)&work->data[10], 4);
calc_network_diff(work);
if (stratum_diff != work->targetdiff) {
stratum_diff = work->targetdiff;
applog(LOG_WARNING, "Pool diff set to %g", stratum_diff);
}
return true;
}
bool sia_submit(CURL *curl, struct pool_infos *pool, struct work *work)
{
char curl_err_str[CURL_ERROR_SIZE] = { 0 };
struct data_buffer all_data = { 0 };
struct curl_slist *headers = NULL;
char buf[256] = { 0 };
char url[512*3];
if (opt_protocol)
applog_hex(work->data, 80);
//applog_hex(&work->data[8], 16);
//applog_hex(&work->data[10], 4);
// nanopool
snprintf(url, sizeof(url), "%s/miner/header?address=%s&worker=%s",
pool->url, pool->user, pool->pass);
if (opt_protocol)
curl_easy_setopt(curl, CURLOPT_VERBOSE, 1);
curl_easy_setopt(curl, CURLOPT_URL, url);
curl_easy_setopt(curl, CURLOPT_ENCODING, "");
curl_easy_setopt(curl, CURLOPT_FAILONERROR, 0);
curl_easy_setopt(curl, CURLOPT_NOSIGNAL, 1);
curl_easy_setopt(curl, CURLOPT_TCP_NODELAY, 1);
curl_easy_setopt(curl, CURLOPT_ERRORBUFFER, curl_err_str);
curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 1);
curl_easy_setopt(curl, CURLOPT_TIMEOUT, 10);
curl_easy_setopt(curl, CURLOPT_WRITEDATA, &all_data);
curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, sia_data_cb);
memcpy(buf, work->data, 80);
curl_easy_setopt(curl, CURLOPT_POST, 1);
curl_easy_setopt(curl, CURLOPT_POSTFIELDSIZE, 80);
curl_easy_setopt(curl, CURLOPT_POSTFIELDS, (void*) buf);
// headers = curl_slist_append(headers, "Content-Type: application/octet-stream");
// headers = curl_slist_append(headers, "Content-Length: 80");
headers = curl_slist_append(headers, "Accept:"); // disable Accept hdr
headers = curl_slist_append(headers, "Expect:"); // disable Expect hdr
headers = curl_slist_append(headers, "User-Agent: Sia-Agent");
// headers = curl_slist_append(headers, "User-Agent: " USER_AGENT);
curl_easy_setopt(curl, CURLOPT_HTTPHEADER, headers);
int res = curl_easy_perform(curl) == 0;
long errcode;
CURLcode c = curl_easy_getinfo(curl, CURLINFO_RESPONSE_CODE, &errcode);
if (errcode != 204) {
if (strlen(curl_err_str))
applog(LOG_ERR, "submit err %ld %s", errcode, curl_err_str);
res = 0;
}
share_result(res, work->pooln, work->sharediff[0], res ? NULL : (char*) all_data.buf);
curl_slist_free_all(headers);
return true;
}
// ---- END SIA LONGPOLL ----------------------------------------------------------------------------