/* * Copyright 2010 Jeff Garzik * * 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" #include #include #include #include #include #include #include #include #ifndef WIN32 #include #endif #include #include #include #include "compat.h" #include "miner.h" #define PROGRAM_NAME "minerd" #define DEF_RPC_URL "http://127.0.0.1:8332/" #define DEF_RPC_USERNAME "rpcuser" #define DEF_RPC_PASSWORD "rpcpass" #define DEF_RPC_USERPASS DEF_RPC_USERNAME ":" DEF_RPC_PASSWORD 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 sha256_algos { ALGO_C, /* plain C */ ALGO_4WAY, /* parallel SSE2 */ ALGO_VIA, /* VIA padlock */ ALGO_CRYPTOPP, /* Crypto++ (C) */ ALGO_CRYPTOPP_ASM32, /* Crypto++ 32-bit assembly */ ALGO_SSE2_64, /* SSE2 for x86_64 */ }; static const char *algo_names[] = { [ALGO_C] = "c", #ifdef WANT_SSE2_4WAY [ALGO_4WAY] = "4way", #endif #ifdef WANT_VIA_PADLOCK [ALGO_VIA] = "via", #endif [ALGO_CRYPTOPP] = "cryptopp", #ifdef WANT_CRYPTOPP_ASM32 [ALGO_CRYPTOPP_ASM32] = "cryptopp_asm32", #endif #ifdef WANT_X8664_SSE2 [ALGO_SSE2_64] = "sse2_64", #endif }; bool opt_debug = false; bool opt_protocol = false; bool want_longpoll = true; bool have_longpoll = false; bool use_syslog = false; static bool opt_quiet = false; static int opt_retries = 10; static int opt_fail_pause = 30; int opt_scantime = 5; static json_t *opt_config; static const bool opt_time = true; static enum sha256_algos opt_algo = ALGO_C; static int opt_n_threads = 1; static char *rpc_url; static char *rpc_userpass; static char *rpc_user, *rpc_pass; struct thr_info *thr_info; static int work_thr_id; int longpoll_thr_id; struct work_restart *work_restart = NULL; pthread_mutex_t time_lock; struct option_help { const char *name; const char *helptext; }; static struct option_help options_help[] = { { "help", "(-h) Display this help text" }, { "config FILE", "(-c FILE) JSON-format configuration file (default: none)\n" "See example-cfg.json for an example configuration." }, { "algo XXX", "(-a XXX) Specify sha256 implementation:\n" "\tc\t\tLinux kernel sha256, implemented in C (default)" #ifdef WANT_SSE2_4WAY "\n\t4way\t\ttcatm's 4-way SSE2 implementation" #endif #ifdef WANT_VIA_PADLOCK "\n\tvia\t\tVIA padlock implementation" #endif "\n\tcryptopp\tCrypto++ C/C++ implementation" #ifdef WANT_CRYPTOPP_ASM32 "\n\tcryptopp_asm32\tCrypto++ 32-bit assembler implementation" #endif #ifdef WANT_X8664_SSE2 "\n\tsse2_64\t\tSSE2 implementation for x86_64 machines" #endif }, { "quiet", "(-q) Disable per-thread hashmeter output (default: off)" }, { "debug", "(-D) Enable debug output (default: off)" }, { "no-longpoll", "Disable X-Long-Polling support (default: enabled)" }, { "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\")" }, { "retry-pause N", "(-R N) Number of seconds to pause, between retries\n" "\t(default: 30)" }, { "scantime N", "(-s N) Upper bound on time spent scanning current work,\n" "\tin seconds. (default: 5)" }, #ifdef HAVE_SYSLOG_H { "syslog", "Use system log for output messages (default: standard error)" }, #endif { "threads N", "(-t N) Number of miner threads (default: 1)" }, { "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 ")" }, { "user USERNAME", "(-u USERNAME) Username for bitcoin JSON-RPC server " "(default: " DEF_RPC_USERNAME ")" }, { "pass PASSWORD", "(-p USERNAME) Password for bitcoin JSON-RPC server " "(default: " DEF_RPC_PASSWORD ")" }, }; static struct option options[] = { { "algo", 1, NULL, 'a' }, { "config", 1, NULL, 'c' }, { "debug", 0, NULL, 'D' }, { "help", 0, NULL, 'h' }, { "no-longpoll", 0, NULL, 1003 }, { "pass", 1, NULL, 'p' }, { "protocol-dump", 0, NULL, 'P' }, { "quiet", 0, NULL, 'q' }, { "threads", 1, NULL, 't' }, { "retries", 1, NULL, 'r' }, { "retry-pause", 1, NULL, 'R' }, { "scantime", 1, NULL, 's' }, #ifdef HAVE_SYSLOG_H { "syslog", 0, NULL, 1004 }, #endif { "url", 1, NULL, 1001 }, { "user", 1, NULL, 'u' }, { "userpass", 1, NULL, 1002 }, { } }; struct work { unsigned char data[128]; unsigned char hash1[64]; unsigned char midstate[32]; unsigned char target[32]; unsigned char hash[32]; }; 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) { applog(LOG_ERR, "JSON key '%s' not found", key); return false; } hexstr = json_string_value(tmp); if (!hexstr) { applog(LOG_ERR, "JSON key '%s' is not a string", key); return false; } if (!hex2bin(buf, hexstr, buflen)) return false; return true; } static bool work_decode(const json_t *val, struct work *work) { if (!jobj_binary(val, "midstate", work->midstate, sizeof(work->midstate))) { applog(LOG_ERR, "JSON inval midstate"); goto err_out; } if (!jobj_binary(val, "data", work->data, sizeof(work->data))) { applog(LOG_ERR, "JSON inval data"); goto err_out; } if (!jobj_binary(val, "hash1", work->hash1, sizeof(work->hash1))) { applog(LOG_ERR, "JSON inval hash1"); goto err_out; } if (!jobj_binary(val, "target", work->target, sizeof(work->target))) { applog(LOG_ERR, "JSON inval target"); goto err_out; } memset(work->hash, 0, sizeof(work->hash)); return true; err_out: return false; } static bool submit_upstream_work(CURL *curl, const struct work *work) { char *hexstr = NULL; json_t *val, *res; char s[345]; bool rc = false; /* build hex string */ hexstr = bin2hex(work->data, sizeof(work->data)); if (!hexstr) { applog(LOG_ERR, "submit_upstream_work OOM"); goto out; } /* build JSON-RPC request */ sprintf(s, "{\"method\": \"getwork\", \"params\": [ \"%s\" ], \"id\":1}\r\n", hexstr); if (opt_debug) applog(LOG_DEBUG, "DBG: sending RPC call: %s", s); /* issue JSON-RPC request */ val = json_rpc_call(curl, rpc_url, rpc_userpass, s, false, false); if (!val) { applog(LOG_ERR, "submit_upstream_work json_rpc_call failed"); goto out; } res = json_object_get(val, "result"); applog(LOG_INFO, "PROOF OF WORK RESULT: %s", json_is_true(res) ? "true (yay!!!)" : "false (booooo)"); json_decref(val); rc = true; out: free(hexstr); return rc; } static const char *rpc_req = "{\"method\": \"getwork\", \"params\": [], \"id\":0}\r\n"; static bool get_upstream_work(CURL *curl, struct work *work) { json_t *val; bool rc; val = json_rpc_call(curl, rpc_url, rpc_userpass, rpc_req, want_longpoll, false); if (!val) return false; rc = work_decode(json_object_get(val, "result"), work); json_decref(val); return rc; } static void workio_cmd_free(struct workio_cmd *wc) { if (!wc) return; switch (wc->cmd) { case WC_SUBMIT_WORK: free(wc->u.work); break; default: /* do nothing */ break; } memset(wc, 0, sizeof(*wc)); /* poison */ free(wc); } static bool workio_get_work(struct workio_cmd *wc, CURL *curl) { struct work *ret_work; int failures = 0; ret_work = calloc(1, sizeof(*ret_work)); if (!ret_work) return false; /* obtain new work from bitcoin via JSON-RPC */ while (!get_upstream_work(curl, ret_work)) { if ((opt_retries >= 0) && (++failures > opt_retries)) { applog(LOG_ERR, "json_rpc_call failed, terminating workio thread"); free(ret_work); return false; } /* pause, then restart work-request loop */ applog(LOG_ERR, "json_rpc_call failed, retry after %d seconds", opt_fail_pause); sleep(opt_fail_pause); } /* send work to requesting thread */ if (!tq_push(wc->thr->q, ret_work)) free(ret_work); return true; } static bool workio_submit_work(struct workio_cmd *wc, CURL *curl) { int failures = 0; /* submit solution to bitcoin via JSON-RPC */ while (!submit_upstream_work(curl, wc->u.work)) { if ((opt_retries >= 0) && (++failures > opt_retries)) { applog(LOG_ERR, "...terminating workio thread"); return false; } /* pause, then restart work-request loop */ applog(LOG_ERR, "...retry after %d seconds", opt_fail_pause); sleep(opt_fail_pause); } return true; } static void *workio_thread(void *userdata) { struct thr_info *mythr = userdata; CURL *curl; bool ok = true; curl = curl_easy_init(); if (!curl) { applog(LOG_ERR, "CURL initialization failed"); return NULL; } while (ok) { struct workio_cmd *wc; /* wait for workio_cmd sent to us, on our queue */ wc = tq_pop(mythr->q, NULL); if (!wc) { ok = false; break; } /* process workio_cmd */ switch (wc->cmd) { case WC_GET_WORK: ok = workio_get_work(wc, curl); break; case WC_SUBMIT_WORK: ok = workio_submit_work(wc, curl); break; default: /* should never happen */ ok = false; break; } workio_cmd_free(wc); } tq_freeze(mythr->q); curl_easy_cleanup(curl); return NULL; } static void hashmeter(int thr_id, const struct timeval *diff, unsigned long hashes_done) { double khashes, secs; khashes = hashes_done / 1000.0; secs = (double)diff->tv_sec + ((double)diff->tv_usec / 1000000.0); if (!opt_quiet) applog(LOG_INFO, "thread %d: %lu hashes, %.2f khash/sec", thr_id, hashes_done, khashes / secs); } static bool get_work(struct thr_info *thr, struct work *work) { struct workio_cmd *wc; struct work *work_heap; /* fill out work request message */ wc = calloc(1, sizeof(*wc)); if (!wc) return false; wc->cmd = WC_GET_WORK; wc->thr = thr; /* send work request to workio thread */ if (!tq_push(thr_info[work_thr_id].q, wc)) { workio_cmd_free(wc); return false; } /* wait for response, a unit of work */ work_heap = tq_pop(thr->q, NULL); if (!work_heap) return false; /* copy returned work into storage provided by caller */ memcpy(work, work_heap, sizeof(*work)); free(work_heap); return true; } static bool submit_work(struct thr_info *thr, const struct work *work_in) { struct workio_cmd *wc; /* fill out work request message */ wc = calloc(1, sizeof(*wc)); if (!wc) return false; wc->u.work = malloc(sizeof(*work_in)); if (!wc->u.work) goto err_out; wc->cmd = WC_SUBMIT_WORK; wc->thr = thr; memcpy(wc->u.work, work_in, sizeof(*work_in)); /* send solution to workio thread */ if (!tq_push(thr_info[work_thr_id].q, wc)) goto err_out; return true; err_out: workio_cmd_free(wc); return false; } static void *miner_thread(void *userdata) { struct thr_info *mythr = userdata; int thr_id = mythr->id; uint32_t max_nonce = 0xffffff; while (1) { struct work work __attribute__((aligned(128))); unsigned long hashes_done; struct timeval tv_start, tv_end, diff; uint64_t max64; bool rc; /* obtain new work from internal workio thread */ if (!get_work(mythr, &work)) { applog(LOG_ERR, "work retrieval failed, exiting " "mining thread %d", mythr->id); goto out; } hashes_done = 0; gettimeofday(&tv_start, NULL); /* scan nonces for a proof-of-work hash */ switch (opt_algo) { case ALGO_C: rc = scanhash_c(thr_id, work.midstate, work.data + 64, work.hash1, work.hash, work.target, max_nonce, &hashes_done); break; #ifdef WANT_X8664_SSE2 case ALGO_SSE2_64: { unsigned int rc5 = scanhash_sse2_64(thr_id, work.midstate, work.data + 64, work.hash1, work.hash, work.target, max_nonce, &hashes_done); rc = (rc5 == -1) ? false : true; } break; #endif #ifdef WANT_SSE2_4WAY case ALGO_4WAY: { unsigned int rc4 = ScanHash_4WaySSE2(thr_id, work.midstate, work.data + 64, work.hash1, work.hash, work.target, max_nonce, &hashes_done); rc = (rc4 == -1) ? false : true; } break; #endif #ifdef WANT_VIA_PADLOCK case ALGO_VIA: rc = scanhash_via(thr_id, work.data, work.target, max_nonce, &hashes_done); break; #endif case ALGO_CRYPTOPP: rc = scanhash_cryptopp(thr_id, work.midstate, work.data + 64, work.hash1, work.hash, work.target, max_nonce, &hashes_done); break; #ifdef WANT_CRYPTOPP_ASM32 case ALGO_CRYPTOPP_ASM32: rc = scanhash_asm32(thr_id, work.midstate, work.data + 64, work.hash1, work.hash, work.target, max_nonce, &hashes_done); break; #endif default: /* should never happen */ goto out; } /* record scanhash elapsed time */ gettimeofday(&tv_end, NULL); timeval_subtract(&diff, &tv_end, &tv_start); hashmeter(thr_id, &diff, hashes_done); /* adjust max_nonce to meet target scan time */ if (diff.tv_usec > 500000) diff.tv_sec++; if (diff.tv_sec > 0) { max64 = ((uint64_t)hashes_done * opt_scantime) / diff.tv_sec; if (max64 > 0xfffffffaULL) max64 = 0xfffffffaULL; max_nonce = max64; } /* if nonce found, submit work */ if (rc && !submit_work(mythr, &work)) break; } out: tq_freeze(mythr->q); return NULL; } static void restart_threads(void) { int i; for (i = 0; i < opt_n_threads; i++) work_restart[i].restart = 1; } static void *longpoll_thread(void *userdata) { struct thr_info *mythr = userdata; CURL *curl = NULL; char *copy_start, *hdr_path, *lp_url = NULL; bool need_slash = false; int failures = 0; hdr_path = tq_pop(mythr->q, NULL); if (!hdr_path) goto out; copy_start = (*hdr_path == '/') ? (hdr_path + 1) : hdr_path; if (rpc_url[strlen(rpc_url) - 1] != '/') need_slash = true; lp_url = malloc(strlen(rpc_url) + strlen(copy_start) + 2); if (!lp_url) goto out; sprintf(lp_url, "%s%s%s", rpc_url, need_slash ? "/" : "", copy_start); applog(LOG_INFO, "Long-polling activated for %s", lp_url); curl = curl_easy_init(); if (!curl) { applog(LOG_ERR, "CURL initialization failed"); goto out; } while (1) { json_t *val; val = json_rpc_call(curl, lp_url, rpc_userpass, rpc_req, false, true); if (val) { failures = 0; json_decref(val); applog(LOG_INFO, "LONGPOLL detected new block"); restart_threads(); } else { if (failures++ < 10) { sleep(30); applog(LOG_ERR, "longpoll failed, sleeping for 30s\n"); } else { applog(LOG_ERR, "longpoll failed, ending thread\n"); goto out; } } } out: free(hdr_path); free(lp_url); tq_freeze(mythr->q); if (curl) curl_easy_cleanup(curl); return NULL; } static void show_usage(void) { int i; printf("minerd 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 'a': for (i = 0; i < ARRAY_SIZE(algo_names); i++) { if (algo_names[i] && !strcmp(arg, algo_names[i])) { opt_algo = i; break; } } if (i == ARRAY_SIZE(algo_names)) show_usage(); break; case 'c': { json_error_t err; if (opt_config) json_decref(opt_config); opt_config = json_load_file(arg, &err); if (!json_is_object(opt_config)) { applog(LOG_ERR, "JSON decode of %s failed", arg); show_usage(); } break; } case 'q': opt_quiet = true; break; case 'D': opt_debug = true; break; case 'p': free(rpc_pass); rpc_pass = strdup(arg); 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 'R': v = atoi(arg); if (v < 1 || v > 9999) /* sanity check */ show_usage(); opt_fail_pause = v; break; case 's': v = atoi(arg); if (v < 1 || v > 9999) /* sanity check */ show_usage(); opt_scantime = v; break; case 't': v = atoi(arg); if (v < 1 || v > 9999) /* sanity check */ show_usage(); opt_n_threads = v; break; case 'u': free(rpc_user); rpc_user = strdup(arg); break; case 1001: /* --url */ if (strncmp(arg, "http://", 7) && strncmp(arg, "https://", 8)) show_usage(); free(rpc_url); rpc_url = strdup(arg); break; case 1002: /* --userpass */ if (!strchr(arg, ':')) show_usage(); free(rpc_userpass); rpc_userpass = strdup(arg); break; case 1003: want_longpoll = false; break; case 1004: use_syslog = true; break; default: show_usage(); } } static void parse_config(void) { int i; json_t *val; if (!json_is_object(opt_config)) return; for (i = 0; i < ARRAY_SIZE(options); i++) { if (!options[i].name) break; if (!strcmp(options[i].name, "config")) continue; val = json_object_get(opt_config, options[i].name); if (!val) continue; if (options[i].has_arg && json_is_string(val)) { char *s = strdup(json_string_value(val)); if (!s) break; parse_arg(options[i].val, s); free(s); } else if (!options[i].has_arg && json_is_true(val)) parse_arg(options[i].val, ""); else applog(LOG_ERR, "JSON option %s invalid", options[i].name); } } static void parse_cmdline(int argc, char *argv[]) { int key; while (1) { key = getopt_long(argc, argv, "a:c:qDPr:s:t:h?", options, NULL); if (key < 0) break; parse_arg(key, optarg); } parse_config(); } int main (int argc, char *argv[]) { struct thr_info *thr; int i; rpc_url = strdup(DEF_RPC_URL); rpc_userpass = strdup(DEF_RPC_USERPASS); /* parse command line */ parse_cmdline(argc, argv); if (!rpc_userpass && rpc_user && rpc_pass) { rpc_userpass = malloc(strlen(rpc_user) + strlen(rpc_pass) + 2); if (!rpc_userpass) return 1; sprintf(rpc_userpass, "%s:%s", rpc_user, rpc_pass); } pthread_mutex_init(&time_lock, NULL); #ifdef HAVE_SYSLOG_H if (use_syslog) openlog("cpuminer", LOG_PID, LOG_USER); #endif /* set our priority to the highest (aka "nicest, least intrusive") */ if (setpriority(PRIO_PROCESS, 0, 19)) perror("setpriority"); work_restart = calloc(opt_n_threads, sizeof(*work_restart)); if (!work_restart) return 1; thr_info = calloc(opt_n_threads + 2, sizeof(*thr)); if (!thr_info) return 1; /* init workio thread info */ work_thr_id = opt_n_threads; thr = &thr_info[work_thr_id]; thr->id = work_thr_id; thr->q = tq_new(); if (!thr->q) return 1; /* start work I/O thread */ if (pthread_create(&thr->pth, NULL, workio_thread, thr)) { applog(LOG_ERR, "workio thread create failed"); return 1; } /* init longpoll thread info */ if (want_longpoll) { longpoll_thr_id = opt_n_threads + 1; thr = &thr_info[longpoll_thr_id]; thr->id = longpoll_thr_id; thr->q = tq_new(); if (!thr->q) return 1; /* start longpoll thread */ if (pthread_create(&thr->pth, NULL, longpoll_thread, thr)) { applog(LOG_ERR, "longpoll thread create failed"); return 1; } } else longpoll_thr_id = -1; /* start mining threads */ for (i = 0; i < opt_n_threads; i++) { thr = &thr_info[i]; thr->id = i; thr->q = tq_new(); if (!thr->q) return 1; if (pthread_create(&thr->pth, NULL, miner_thread, thr)) { applog(LOG_ERR, "thread %d create failed", i); return 1; } sleep(1); /* don't pound RPC server all at once */ } applog(LOG_INFO, "%d miner threads started, " "using SHA256 '%s' algorithm.\n", opt_n_threads, algo_names[opt_algo]); /* main loop - simply wait for workio thread to exit */ pthread_join(thr_info[work_thr_id].pth, NULL); applog(LOG_INFO, "workio thread dead, exiting."); return 0; }