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@ -1362,13 +1362,16 @@ static void calc_midstate(struct work *work) |
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static void __build_gbt_coinbase(struct pool *pool) |
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static void __build_gbt_coinbase(struct pool *pool) |
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{ |
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{ |
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unsigned char *coinbase; |
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unsigned char *coinbase; |
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int cbt_len, cal_len; |
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uint8_t *extra_len; |
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uint8_t *extra_len; |
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int cbt_len; |
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cbt_len = strlen(pool->coinbasetxn) / 2; |
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cbt_len = strlen(pool->coinbasetxn) / 2; |
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pool->coinbase_len = cbt_len + 4; |
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pool->coinbase_len = cbt_len + 4; |
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/* We add 4 bytes of extra data corresponding to nonce2 of stratum */ |
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/* We add 4 bytes of extra data corresponding to nonce2 of stratum */ |
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coinbase = calloc(pool->coinbase_len, 1); |
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cal_len = pool->coinbase_len + 1; |
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if (cal_len % 4) |
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cal_len += 4 - (cal_len % 4); |
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coinbase = calloc(cal_len, 1); |
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hex2bin(coinbase, pool->coinbasetxn, 42); |
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hex2bin(coinbase, pool->coinbasetxn, 42); |
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extra_len = (uint8_t *)(coinbase + 41); |
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extra_len = (uint8_t *)(coinbase + 41); |
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*extra_len += 4; |
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*extra_len += 4; |
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@ -1390,7 +1393,7 @@ static bool __build_gbt_txns(struct pool *pool, json_t *res_val) |
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json_t *txn_array; |
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json_t *txn_array; |
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const char *txn0; |
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const char *txn0; |
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bool ret = false; |
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bool ret = false; |
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int i; |
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int i, cal_len; |
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free(pool->txn0); |
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free(pool->txn0); |
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pool->txn0 = NULL; |
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pool->txn0 = NULL; |
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@ -1409,7 +1412,10 @@ static bool __build_gbt_txns(struct pool *pool, json_t *res_val) |
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txn0 = json_string_value(json_object_get(json_array_get(txn_array, 0), "data")); |
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txn0 = json_string_value(json_object_get(json_array_get(txn_array, 0), "data")); |
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pool->txn0_len = strlen(txn0) / 2; |
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pool->txn0_len = strlen(txn0) / 2; |
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pool->txn0 = calloc(pool->txn0_len , 1);; |
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cal_len = pool->txn0_len; |
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if (cal_len % 4) |
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cal_len += 4 - (cal_len % 4); |
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pool->txn0 = calloc(cal_len , 1); |
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if (unlikely(!pool->txn0)) |
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if (unlikely(!pool->txn0)) |
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quit(1, "Failed to calloc pool->txn0"); |
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quit(1, "Failed to calloc pool->txn0"); |
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if (!hex2bin(pool->txn0, txn0, pool->txn0_len)) |
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if (!hex2bin(pool->txn0, txn0, pool->txn0_len)) |
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@ -1421,11 +1427,13 @@ static bool __build_gbt_txns(struct pool *pool, json_t *res_val) |
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for (i = 1; i < pool->gbt_txns; i++) { |
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for (i = 1; i < pool->gbt_txns; i++) { |
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json_t *txn_val = json_object_get(json_array_get(txn_array, i), "data"); |
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json_t *txn_val = json_object_get(json_array_get(txn_array, i), "data"); |
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const char *txn = json_string_value(txn_val); |
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const char *txn = json_string_value(txn_val); |
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int txn_len = strlen(txn), binlen; |
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int txn_len = strlen(txn); |
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unsigned char *txn_bin; |
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unsigned char *txn_bin; |
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binlen = txn_len % 4 ? txn_len + 4 - (txn_len % 4) : txn_len; |
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cal_len = txn_len; |
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txn_bin = calloc(binlen, 1); |
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if (cal_len % 4) |
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cal_len += 4 - (cal_len % 4); |
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txn_bin = calloc(cal_len, 1); |
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if (unlikely(!txn_bin)) |
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if (unlikely(!txn_bin)) |
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quit(1, "Failed to calloc txn_bin in __build_gbt_txns"); |
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quit(1, "Failed to calloc txn_bin in __build_gbt_txns"); |
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if (unlikely(!hex2bin(txn_bin, txn, txn_len / 2))) |
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if (unlikely(!hex2bin(txn_bin, txn, txn_len / 2))) |
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@ -1441,21 +1449,25 @@ out: |
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static unsigned char *__gbt_merkleroot(struct pool *pool) |
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static unsigned char *__gbt_merkleroot(struct pool *pool) |
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{ |
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{ |
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unsigned char *merkles, *txn0, *merkle_hash; |
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unsigned char *merkles, *txn0, *merkle_hash; |
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int i, txns; |
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int i, txns, cal_len; |
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if (!pool->gbt_txns) { |
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if (!pool->gbt_txns) { |
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pool->txn0 = (unsigned char *)strdup((const char *)pool->gbt_coinbase); |
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pool->txn0 = (unsigned char *)strdup((const char *)pool->gbt_coinbase); |
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pool->txn0_len = pool->coinbase_len; |
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pool->txn0_len = pool->coinbase_len; |
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} |
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} |
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txn0 = calloc(pool->coinbase_len + pool->txn0_len, 1); |
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cal_len = pool->coinbase_len + pool->txn0_len; |
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if (cal_len % 4) |
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cal_len += 4 - (cal_len % 4); |
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txn0 = calloc(cal_len, 1); |
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if (unlikely(!txn0)) |
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if (unlikely(!txn0)) |
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quit(1, "Failed to calloc txn0hash"); |
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quit(1, "Failed to calloc txn0hash"); |
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memcpy(txn0, pool->gbt_coinbase, pool->coinbase_len); |
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memcpy(txn0, pool->gbt_coinbase, pool->coinbase_len); |
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memcpy(txn0 + pool->coinbase_len, pool->txn0, pool->txn0_len); |
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memcpy(txn0 + pool->coinbase_len, pool->txn0, pool->txn0_len); |
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merkles = calloc(32 + (32 * pool->gbt_txns), 1); |
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cal_len = 32 + (32 * pool->gbt_txns); |
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merkles = calloc(cal_len, 1); |
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if (unlikely(!merkles)) |
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if (unlikely(!merkles)) |
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quit(1, "Failed to calloc merkles in __gbt_merkleroot"); |
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quit(1, "Failed to calloc merkles in __gbt_merkleroot"); |
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@ -1465,20 +1477,24 @@ static unsigned char *__gbt_merkleroot(struct pool *pool) |
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if (pool->gbt_txns > 1) |
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if (pool->gbt_txns > 1) |
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memcpy(merkles + 32, pool->txn_hashes, (pool->gbt_txns - 1) * 32); |
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memcpy(merkles + 32, pool->txn_hashes, (pool->gbt_txns - 1) * 32); |
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merkle_hash = calloc((pool->gbt_txns + 1) * 32, 1); |
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cal_len = (pool->gbt_txns + 1) * 32; |
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merkle_hash = calloc(cal_len, 1); |
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if (unlikely(!merkle_hash)) |
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if (unlikely(!merkle_hash)) |
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quit(1, "Failed to calloc merkle_hash in __gbt_merkleroot"); |
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quit(1, "Failed to calloc merkle_hash in __gbt_merkleroot"); |
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txns = pool->gbt_txns + 1; |
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txns = pool->gbt_txns + 1; |
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for (i = 0; i < txns; i++){ |
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while (txns > 1) { |
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unsigned char tohash[64]; |
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if (txns % 2) { |
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memcpy(&merkles[txns * 32], &merkles[(txns - 1) * 32], 32); |
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txns++; |
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} |
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for (i = 0; i < txns; i += 2){ |
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unsigned char hashout[32]; |
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memcpy(tohash, &merkles[i * 32], 32); |
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gen_hash(merkle_hash + (i * 32), hashout, 64); |
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if (i + 1 < txns) |
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memcpy(merkle_hash + (i / 2 * 32), hashout, 32); |
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memcpy(tohash + 32, &merkles[(i + 1) * 32], 32); |
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} |
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else |
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txns /= 2; |
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memcpy(tohash + 32, &merkles[i * 32], 32); |
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gen_hash(tohash, merkle_hash + (i * 32), 64); |
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} |
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} |
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return merkle_hash; |
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return merkle_hash; |
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} |
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} |
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@ -1490,8 +1506,21 @@ static void gen_gbt_work(struct pool *pool, struct work *work) |
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mutex_lock(&pool->gbt_lock); |
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mutex_lock(&pool->gbt_lock); |
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__build_gbt_coinbase(pool); |
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__build_gbt_coinbase(pool); |
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merkleroot = __gbt_merkleroot(pool); |
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merkleroot = __gbt_merkleroot(pool); |
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memcpy(work->data, &pool->gbt_version, 4); |
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hex2bin(work->data + 4, pool->previousblockhash, 32); |
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memcpy(work->data + 4 + 32, merkleroot, 32); |
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memcpy(work->data + 4 + 32 + 32, &pool->curtime, 4); |
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hex2bin(work->data + 4 + 32 + 32 + 4, pool->gbt_bits, 4); |
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memset(work->data + 4 + 32 + 32 + 4 + 4, 0, 4); /* nonce */ |
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mutex_unlock(&pool->gbt_lock); |
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mutex_unlock(&pool->gbt_lock); |
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if (opt_debug) { |
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char *header = bin2hex(work->data, 4 + 32 + 32 + 4 + 4 + 4); |
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applog(LOG_DEBUG, "Generated GBT header %s", header); |
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free(header); |
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} |
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free(merkleroot); |
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free(merkleroot); |
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} |
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} |
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