/* * Copyright 2010 Jeff Garzik * 2011 Nils Schneider * * 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 #include #include #include #include #include #include #include #include #include #include #include #include "miner.h" #include "findnonce.h" #include "ocl.h" #define VERSION "0.1" #define PROGRAM_NAME "oclminer" #define DEF_RPC_URL "http://127.0.0.1:8332/" #define DEF_RPC_USERPASS "rpcuser:rpcpass" enum { STAT_SLEEP_INTERVAL = 100, STAT_CTR_INTERVAL = 10000000, FAILURE_INTERVAL = 30, }; int opt_debug = false; int opt_protocol = false; int opt_ndevs = false; static int opt_retries = 10; static bool program_running = true; static const bool opt_time = true; static int opt_n_threads = 1; static char *rpc_url = DEF_RPC_URL; static char *userpass = DEF_RPC_USERPASS; int block = 0; _clState *clStates[16]; struct option_help { const char *name; const char *helptext; }; static struct option_help options_help[] = { { "help", "(-h) Display this help text" }, { "ndevs", "(-n) Display number of detected GPUs" }, { "debug", "(-D) Enable debug output (default: off)" }, { "protocol-dump", "(-P) Verbose dump of protocol-level activities (default: off)" }, { "retries N", "(-r N) Number of times to retry, if JSON-RPC call fails\n" "\t(default: 10; use -1 for \"never\")" }, { "url URL", "URL for bitcoin JSON-RPC server " "(default: " DEF_RPC_URL ")" }, { "userpass USERNAME:PASSWORD", "Username:Password pair for bitcoin JSON-RPC server " "(default: " DEF_RPC_USERPASS ")" }, }; static struct option options[] = { { "help", 0, NULL, 'h' }, { "debug", 0, NULL, 'D' }, { "protocol-dump", 0, NULL, 'P' }, { "retries", 1, NULL, 'r' }, { "url", 1, NULL, 1001 }, { "userpass", 1, NULL, 1002 }, { "ndevs", 0, NULL, 'n' }, { } }; struct work_t { unsigned char data[128]; unsigned char hash1[64]; unsigned char midstate[32]; unsigned char target[32]; unsigned char hash[32]; uint32_t output[MAXTHREADS]; uint32_t res_nonce; bool valid; uint32_t ready; dev_blk_ctx blk; }; static bool jobj_binary(const json_t *obj, const char *key, void *buf, size_t buflen) { const char *hexstr; json_t *tmp; tmp = json_object_get(obj, key); if (!tmp) { fprintf(stderr, "JSON key '%s' not found\n", key); return false; } hexstr = json_string_value(tmp); if (!hexstr) { fprintf(stderr, "JSON key '%s' is not a string\n", key); return false; } if (!hex2bin(buf, hexstr, buflen)) return false; return true; } static bool work_decode(const json_t *val, struct work_t *work) { if (!jobj_binary(val, "midstate", work->midstate, sizeof(work->midstate))) { fprintf(stderr, "JSON inval midstate\n"); goto err_out; } if (!jobj_binary(val, "data", work->data, sizeof(work->data))) { fprintf(stderr, "JSON inval data\n"); goto err_out; } if (!jobj_binary(val, "hash1", work->hash1, sizeof(work->hash1))) { fprintf(stderr, "JSON inval hash1\n"); goto err_out; } if (!jobj_binary(val, "target", work->target, sizeof(work->target))) { fprintf(stderr, "JSON inval target\n"); goto err_out; } memset(work->hash, 0, sizeof(work->hash)); return true; err_out: return false; } static void submit_work(struct work_t *work) { char *hexstr = NULL; json_t *val, *res; char s[345]; printf("PROOF OF WORK FOUND? submitting...\n"); /* build hex string */ hexstr = bin2hex(work->data, sizeof(work->data)); if (!hexstr) goto out; /* build JSON-RPC request */ sprintf(s, "{\"method\": \"getwork\", \"params\": [ \"%s\" ], \"id\":1}\r\n", hexstr); if (opt_debug) fprintf(stderr, "DBG: sending RPC call:\n%s", s); /* issue JSON-RPC request */ val = json_rpc_call(rpc_url, userpass, s); if (!val) { fprintf(stderr, "submit_work json_rpc_call failed\n"); goto out; } res = json_object_get(val, "result"); printf("PROOF OF WORK RESULT: %s\n", json_is_true(res) ? "true (yay!!!)" : "false (booooo)"); json_decref(val); out: free(hexstr); } static void hashmeter(int thr_id, struct timeval *tv_start, unsigned long hashes_done) { struct timeval tv_end, diff; double khashes, secs; gettimeofday(&tv_end, NULL); timeval_subtract(&diff, &tv_end, tv_start); khashes = hashes_done / 1000.0; secs = (double)diff.tv_sec + ((double)diff.tv_usec / 1000000.0); printf("HashMeter(%d): %lu hashes, %.2f khash/sec\n", thr_id, hashes_done, khashes / secs); } static bool getwork(struct work_t *work) { static const char *rpc_req = "{\"method\": \"getwork\", \"params\": [], \"id\":0}\r\n"; json_t *val; bool rc; /* obtain new work from bitcoin */ val = json_rpc_call(rpc_url, userpass, rpc_req); if (!val) { fprintf(stderr, "json_rpc_call failed, "); return false; } /* decode result into work state struct */ rc = work_decode(json_object_get(val, "result"), work); if (!rc) { fprintf(stderr, "JSON-decode of work failed, "); return false; } json_decref(val); return true; } static void *miner_thread(void *thr_id_int) { int thr_id = (unsigned long) thr_id_int; int failures = 0; uint32_t res[MAXTHREADS]; size_t globalThreads[1]; size_t localThreads[1]; cl_int status; _clState *clState = clStates[thr_id]; status = clSetKernelArg(clState->kernel, 0, sizeof(cl_mem), (void *)&clState->inputBuffer); if(status != CL_SUCCESS) { printf("Error: Setting kernel argument 1.\n"); return false; } status = clSetKernelArg(clState->kernel, 1, sizeof(cl_mem), (void *)&clState->outputBuffer); if(status != CL_SUCCESS) { printf("Error: Setting kernel argument 2.\n"); return false; } struct work_t *work; work = malloc(sizeof(struct work_t)*2); work[0].ready = 0; work[1].ready = 0; int frame = 0; int res_frame = 0; int my_block = block; bool need_work = true; while (1) { unsigned long hashes_done; struct timeval tv_start; bool rc; if (need_work || my_block != block) { frame++; frame %= 2; if (opt_debug) fprintf(stderr, "getwork\n"); rc = getwork(&work[frame]); if (!rc) { fprintf(stderr, "getwork failed, "); if ((opt_retries >= 0) && (++failures > opt_retries)) { fprintf(stderr, "terminating thread\n"); return NULL; /* exit thread */ } /* pause, then restart work loop */ fprintf(stderr, "retry after %d seconds\n", FAILURE_INTERVAL); sleep(FAILURE_INTERVAL); continue; } precalc_hash(&work[frame].blk, (uint32_t *)(work[frame].midstate), (uint32_t *)(work[frame].data + 64)); work[frame].blk.nonce = 0; work[frame].valid = true; work[frame].ready = 0; my_block = block; need_work = false; } hashes_done = 0; gettimeofday(&tv_start, NULL); int threads = 102400 * 4; globalThreads[0] = threads; localThreads[0] = 128; status = clEnqueueWriteBuffer(clState->commandQueue, clState->inputBuffer, CL_TRUE, 0, sizeof(dev_blk_ctx), (void *)&work[frame].blk, 0, NULL, NULL); if(status != CL_SUCCESS) { printf("Error: clEnqueueWriteBuffer failed.\n"); return 0; } status = clEnqueueNDRangeKernel(clState->commandQueue, clState->kernel, 1, NULL, globalThreads, localThreads, 0, NULL, NULL); if(status != CL_SUCCESS) { printf("Error: Enqueueing kernel onto command queue. (clEnqueueNDRangeKernel)\n"); return 0; } clFlush(clState->commandQueue); hashes_done = 1024 * threads; if (work[res_frame].ready) { rc = false; uint32_t bestG = ~0; uint32_t nonce; int j; for(j = 0; j < work[res_frame].ready; j++) { if(res[j]) { uint32_t start = (work[res_frame].res_nonce + j)<<10; uint32_t my_g, my_nonce; my_g = postcalc_hash(&work[res_frame].blk, start, start + 1024, &my_nonce); if (opt_debug) fprintf(stderr, "DEBUG: H0 within %u .. %u, best G = %08x, nonce = %08x\n", start, start + 1024, my_g, my_nonce); if(my_g < bestG) { bestG = my_g; nonce = my_nonce; if (opt_debug) fprintf(stderr, "new best\n"); } rc = true; } } work[res_frame].ready = false; uint32_t *target = (uint32_t *)(work[res_frame].target + 24); if(rc && bestG <= *target) { printf("Found solution for %08x: %08x %u\n", *target, bestG, nonce); work[res_frame].data[64+12+0] = (nonce>>0) & 0xff; work[res_frame].data[64+12+1] = (nonce>>8) & 0xff; work[res_frame].data[64+12+2] = (nonce>>16) & 0xff; work[res_frame].data[64+12+3] = (nonce>>24) & 0xff; submit_work(&work[res_frame]); block++; need_work = true; } } clFinish(clState->commandQueue); status = clEnqueueReadBuffer(clState->commandQueue, clState->outputBuffer, CL_TRUE, 0, sizeof(uint32_t) * threads, res, 0, NULL, NULL); if(status != CL_SUCCESS) { printf("Error: clEnqueueReadBuffer failed. (clEnqueueReadBuffer)\n"); return 0; } clFinish(clState->commandQueue); res_frame = frame; work[res_frame].ready = threads; work[res_frame].res_nonce = work[res_frame].blk.nonce; work[frame].blk.nonce += threads; if (work[frame].blk.nonce > 4000000 - threads) need_work = true; hashmeter(thr_id, &tv_start, hashes_done); failures = 0; } return NULL; } static void show_usage(void) { int i; printf("oclminer version %s\n\n", VERSION); printf("Usage:\tminerd [options]\n\nSupported options:\n"); for (i = 0; i < ARRAY_SIZE(options_help); i++) { struct option_help *h; h = &options_help[i]; printf("--%s\n%s\n\n", h->name, h->helptext); } exit(1); } static void parse_arg (int key, char *arg) { int v, i; switch(key) { case 'n': opt_ndevs = true; break; case 'D': opt_debug = true; break; case 'P': opt_protocol = true; break; case 'r': v = atoi(arg); if (v < -1 || v > 9999) /* sanity check */ show_usage(); opt_retries = v; break; case 1001: /* --url */ if (strncmp(arg, "http://", 7) && strncmp(arg, "https://", 8)) show_usage(); rpc_url = arg; break; case 1002: /* --userpass */ if (!strchr(arg, ':')) show_usage(); userpass = arg; break; default: show_usage(); } } static void parse_cmdline(int argc, char *argv[]) { int key; while (1) { key = getopt_long(argc, argv, "DPh?n", options, NULL); if (key < 0) break; parse_arg(key, optarg); } } int main (int argc, char *argv[]) { int i, nDevs; /* parse command line */ parse_cmdline(argc, argv); nDevs = clDevicesNum(); if (opt_ndevs) { printf("%i\n", nDevs); return nDevs; } char name[32]; /* start mining threads */ for (i = 0; i < nDevs; i++) { pthread_t t; printf("Init GPU %i\n", i); clStates[i] = initCl(i, name, sizeof(name)); printf("initCl() finished. Found %s\n", name); if (pthread_create(&t, NULL, miner_thread, (void *)(unsigned long) i)) { fprintf(stderr, "thread %d create failed\n", i); return 1; } sleep(1); /* don't pound RPC server all at once */ } fprintf(stderr, "%d miner threads started\n", i); /* main loop */ while (program_running) { sleep(STAT_SLEEP_INTERVAL); /* do nothing */ } return 0; }