Keep work data in host byte order
This commit is contained in:
pooler
parent
3c78575e0f
commit
c96b468d1c
4 changed files with 68 additions and 98 deletions
45
cpu-miner.c
45
cpu-miner.c
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@ -180,10 +180,8 @@ static struct option const options[] = {
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};
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struct work {
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unsigned char data[128];
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unsigned char target[32];
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unsigned char hash[32];
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uint32_t data[32];
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uint32_t target[8];
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};
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static struct work g_work;
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@ -214,6 +212,8 @@ static bool jobj_binary(const json_t *obj, const char *key,
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static bool work_decode(const json_t *val, struct work *work)
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{
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int i;
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if (unlikely(!jobj_binary(val, "data", work->data, sizeof(work->data)))) {
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applog(LOG_ERR, "JSON inval data");
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goto err_out;
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@ -223,7 +223,10 @@ static bool work_decode(const json_t *val, struct work *work)
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goto err_out;
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}
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memset(work->hash, 0, sizeof(work->hash));
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for (i = 0; i < ARRAY_SIZE(work->data); i++)
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work->data[i] = be32dec(work->data + i);
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for (i = 0; i < ARRAY_SIZE(work->target); i++)
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work->target[i] = le32dec(work->target + i);
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return true;
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@ -231,7 +234,7 @@ err_out:
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return false;
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}
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static bool submit_upstream_work(CURL *curl, const struct work *work)
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static bool submit_upstream_work(CURL *curl, struct work *work)
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{
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char *hexstr = NULL;
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json_t *val, *res;
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@ -241,11 +244,16 @@ static bool submit_upstream_work(CURL *curl, const struct work *work)
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bool rc = false;
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/* pass if the previous hash is not the current previous hash */
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if (!submit_old && memcmp(work->data + 4, g_work.data + 4, 32))
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if (!submit_old && memcmp(work->data + 1, g_work.data + 1, 32)) {
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if (opt_debug)
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applog(LOG_DEBUG, "DEBUG: stale work detected, discarding");
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return true;
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}
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/* build hex string */
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hexstr = bin2hex(work->data, sizeof(work->data));
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for (i = 0; i < ARRAY_SIZE(work->data); i++)
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be32enc(work->data + i, work->data[i]);
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hexstr = bin2hex((unsigned char *)work->data, sizeof(work->data));
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if (unlikely(!hexstr)) {
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applog(LOG_ERR, "submit_upstream_work OOM");
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goto out;
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@ -483,8 +491,9 @@ static void *miner_thread(void *userdata)
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{
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struct thr_info *mythr = userdata;
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int thr_id = mythr->id;
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struct work work;
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uint32_t max_nonce;
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uint32_t next_nonce;
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uint32_t end_nonce = 0xffffffffU / opt_n_threads * (thr_id + 1) - 4;
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unsigned char *scratchbuf = NULL;
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/* Set worker threads to nice 19 and then preferentially to SCHED_IDLE
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@ -504,7 +513,6 @@ static void *miner_thread(void *userdata)
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}
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while (1) {
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struct work work __attribute__((aligned(128)));
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unsigned long hashes_done;
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struct timeval tv_start, tv_end, diff;
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int64_t max64;
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@ -512,7 +520,8 @@ static void *miner_thread(void *userdata)
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/* obtain new work from internal workio thread */
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pthread_mutex_lock(&g_work_lock);
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if (!have_longpoll || time(NULL) >= g_work_time + LP_SCANTIME*3/4) {
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if (!have_longpoll || time(NULL) >= g_work_time + LP_SCANTIME*3/4
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|| work.data[19] >= end_nonce) {
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if (unlikely(!get_work(mythr, &g_work))) {
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applog(LOG_ERR, "work retrieval failed, exiting "
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"mining thread %d", mythr->id);
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@ -525,8 +534,9 @@ static void *miner_thread(void *userdata)
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}
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if (memcmp(work.data, g_work.data, 76)) {
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memcpy(&work, &g_work, sizeof(struct work));
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next_nonce = 0xffffffffU / opt_n_threads * thr_id;
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}
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work.data[19] = 0xffffffffU / opt_n_threads * thr_id;
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} else
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work.data[19]++;
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pthread_mutex_unlock(&g_work_lock);
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work_restart[thr_id].restart = 0;
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@ -536,10 +546,10 @@ static void *miner_thread(void *userdata)
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max64 *= thr_hashrates[thr_id];
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if (max64 <= 0)
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max64 = 0xfffLL;
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if (next_nonce + max64 > 0xfffffffeLL)
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max_nonce = 0xfffffffeU;
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if (work.data[19] + max64 > end_nonce)
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max_nonce = end_nonce;
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else
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max_nonce = next_nonce + max64;
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max_nonce = work.data[19] + max64;
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hashes_done = 0;
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gettimeofday(&tv_start, NULL);
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@ -548,7 +558,7 @@ static void *miner_thread(void *userdata)
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switch (opt_algo) {
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case ALGO_SCRYPT:
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rc = scanhash_scrypt(thr_id, work.data, scratchbuf, work.target,
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max_nonce, &next_nonce, &hashes_done);
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max_nonce, &hashes_done);
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break;
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default:
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@ -1000,4 +1010,3 @@ int main(int argc, char *argv[])
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return 0;
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}
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27
miner.h
27
miner.h
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@ -104,21 +104,6 @@ static inline uint32_t swab32(uint32_t v)
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#endif
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}
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static inline void swap256(void *dest_p, const void *src_p)
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{
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uint32_t *dest = dest_p;
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const uint32_t *src = src_p;
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dest[0] = src[7];
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dest[1] = src[6];
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dest[2] = src[5];
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dest[3] = src[4];
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dest[4] = src[3];
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dest[5] = src[2];
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dest[6] = src[1];
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dest[7] = src[0];
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}
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static inline uint32_t be32dec(const void *pp)
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{
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const uint8_t *p = (uint8_t const *)pp;
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@ -155,19 +140,19 @@ extern bool opt_debug;
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extern bool opt_protocol;
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extern json_t *json_rpc_call(CURL *curl, const char *url, const char *userpass,
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const char *rpc_req, bool, bool, int *);
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const char *rpc_req, bool, bool, int *);
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extern char *bin2hex(const unsigned char *p, size_t len);
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extern bool hex2bin(unsigned char *p, const char *hexstr, size_t len);
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extern unsigned char *scrypt_buffer_alloc();
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extern int scanhash_scrypt(int thr_id, unsigned char *pdata,
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unsigned char *scratchbuf, const unsigned char *ptarget,
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uint32_t max_nonce, uint32_t *next_nonce, unsigned long *hashes_done);
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extern int scanhash_scrypt(int thr_id, uint32_t *pdata,
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unsigned char *scratchbuf, const uint32_t *ptarget,
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uint32_t max_nonce, unsigned long *hashes_done);
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extern int
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timeval_subtract (struct timeval *result, struct timeval *x, struct timeval *y);
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timeval_subtract(struct timeval *result, struct timeval *x, struct timeval *y);
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extern bool fulltest(const unsigned char *hash, const unsigned char *target);
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extern bool fulltest(const uint32_t *hash, const uint32_t *target);
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extern int opt_timeout;
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extern bool want_longpoll;
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47
scrypt.c
47
scrypt.c
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@ -602,43 +602,26 @@ static void scrypt_1024_1_1_256_sp_3way(const uint32_t *input,
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}
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#endif /* SCRYPT_MAX_WAYS >= 3 */
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__attribute__ ((noinline)) static int confirm_hash(const uint32_t *hash,
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const uint32_t *target)
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{
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int i;
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for (i = 7; i >= 0; i--) {
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uint32_t t = le32dec(&target[i]);
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if (hash[i] > t)
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return 0;
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if (hash[i] < t)
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return 1;
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}
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return 1;
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}
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int scanhash_scrypt(int thr_id, unsigned char *pdata,
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unsigned char *scratchbuf, const unsigned char *ptarget,
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uint32_t max_nonce, uint32_t *next_nonce, unsigned long *hashes_done)
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int scanhash_scrypt(int thr_id, uint32_t *pdata,
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unsigned char *scratchbuf, const uint32_t *ptarget,
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uint32_t max_nonce, unsigned long *hashes_done)
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{
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uint32_t data[SCRYPT_MAX_WAYS * 20], hash[SCRYPT_MAX_WAYS * 8];
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uint32_t midstate[8];
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const uint32_t first_nonce = *next_nonce;
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uint32_t n = *next_nonce;
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const uint32_t Htarg = le32dec(&((const uint32_t *)ptarget)[7]);
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uint32_t n = pdata[19] - 1;
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const uint32_t Htarg = ptarget[7];
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const int throughput = scrypt_best_throughput();
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int i;
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for (i = 0; i < 19; i++)
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data[i] = be32dec(&((const uint32_t *)pdata)[i]);
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for (i = 1; i < throughput; i++)
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memcpy(data + i * 20, data, 80);
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for (i = 0; i < throughput; i++)
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memcpy(data + i * 20, pdata, 80);
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SHA256_InitState(midstate);
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SHA256_Transform(midstate, data, 1);
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do {
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for (i = 0; i < throughput; i++)
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data[i * 20 + 19] = n++;
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data[i * 20 + 19] = ++n;
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#if SCRYPT_MAX_WAYS >= 3
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if (throughput == 3)
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@ -653,17 +636,15 @@ int scanhash_scrypt(int thr_id, unsigned char *pdata,
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scrypt_1024_1_1_256_sp(data, hash, midstate, scratchbuf);
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for (i = 0; i < throughput; i++) {
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if (hash[i * 8 + 7] <= Htarg
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&& confirm_hash(hash + i * 8, (uint32_t *)ptarget)) {
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be32enc(&((uint32_t *)pdata)[19], data[i * 20 + 19]);
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*next_nonce = n;
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*hashes_done = n - first_nonce;
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if (hash[i * 8 + 7] <= Htarg && fulltest(hash + i * 8, ptarget)) {
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*hashes_done = n - pdata[19] + 1;
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pdata[19] = data[i * 20 + 19];
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return 1;
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}
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}
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} while (n <= max_nonce && !work_restart[thr_id].restart);
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} while (n < max_nonce && !work_restart[thr_id].restart);
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*next_nonce = n;
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*hashes_done = n - first_nonce;
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*hashes_done = n - pdata[19] + 1;
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pdata[19] = n;
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return 0;
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}
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45
util.c
45
util.c
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@ -1,4 +1,3 @@
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/*
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* Copyright 2010 Jeff Garzik, 2012 pooler
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*
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@ -16,6 +15,8 @@
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#include <ctype.h>
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#include <stdarg.h>
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#include <string.h>
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#include <stdbool.h>
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#include <stdint.h>
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#include <unistd.h>
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#include <jansson.h>
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#include <curl/curl.h>
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@ -464,49 +465,44 @@ timeval_subtract (
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return x->tv_sec < y->tv_sec;
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}
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bool fulltest(const unsigned char *hash, const unsigned char *target)
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bool fulltest(const uint32_t *hash, const uint32_t *target)
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{
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unsigned char hash_swap[32], target_swap[32];
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uint32_t *hash32 = (uint32_t *) hash_swap;
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uint32_t *target32 = (uint32_t *) target_swap;
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int i;
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bool rc = true;
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char *hash_str, *target_str;
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swap256(hash_swap, hash);
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swap256(target_swap, target);
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for (i = 0; i < 32/4; i++) {
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uint32_t h32tmp = swab32(hash32[i]);
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uint32_t t32tmp = target32[i];
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target32[i] = swab32(target32[i]); /* for printing */
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if (h32tmp > t32tmp) {
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for (i = 7; i >= 0; i--) {
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if (hash[i] > target[i]) {
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rc = false;
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break;
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}
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if (h32tmp < t32tmp) {
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if (hash[i] < target[i]) {
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rc = true;
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break;
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}
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}
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if (opt_debug) {
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hash_str = bin2hex(hash_swap, 32);
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target_str = bin2hex(target_swap, 32);
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uint32_t hash_be[32], target_be[32];
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char *hash_str, *target_str;
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applog(LOG_DEBUG, " Proof: %s\nTarget: %s\nTrgVal? %s",
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for (i = 0; i < 8; i++) {
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be32enc(hash_be + i, hash[7 - i]);
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be32enc(target_be + i, target[7 - i]);
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}
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hash_str = bin2hex((unsigned char *)hash_be, 32);
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target_str = bin2hex((unsigned char *)target_be, 32);
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applog(LOG_DEBUG, "DEBUG: %s\nHash: %s\nTarget: %s",
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rc ? "hash <= target"
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: "hash > target (false positive)",
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hash_str,
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target_str,
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rc ? "YES (hash < target)" :
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"no (false positive; hash > target)");
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target_str);
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free(hash_str);
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free(target_str);
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}
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return true; /* FIXME: return rc; */
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return rc;
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}
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struct thread_q *tq_new(void)
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@ -621,4 +617,3 @@ out:
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pthread_mutex_unlock(&tq->mutex);
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return rval;
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}
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