tiamak/node-cryptoforknote-util-salvium
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Clear some bugs + support mining just a v2 coin

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This commit is contained in:
campurro
2019-03-16 16:17:53 +01:00
parent 1583dcd07a
commit 23696c6c63
1 changed files with 37 additions and 48 deletions
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85
src/main.cc
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@@ -38,7 +38,7 @@ blobdata uint64be_to_blob(uint64_t num) {
}
/*
static bool fillExtra(cryptonote::block& block1, const cryptonote::block& block2) {
cryptonote::tx_extra_merge_mining_tag mm_tag;
mm_tag.depth = 0;
@@ -49,62 +49,51 @@ static bool fillExtra(cryptonote::block& block1, const cryptonote::block& block2
return true;
}
*/
static bool fillExtra(cryptonote::block& block1, const cryptonote::block& block2)
static bool fillExtraMM(cryptonote::block& block1, const cryptonote::block& block2)
{
if (block2.timestamp > block1.timestamp) { // get the most recent timestamp (solve duplicated timestamps on child coin)
block1.timestamp = block2.timestamp;
}
if (BLOB_TYPE_CRYPTONOTE == block2.blob_type) { // Insert merged mining tag and block header hash into the miner extra
size_t MERGE_MINING_TAG_RESERVED_SIZE_EX = MERGE_MINING_TAG_RESERVED_SIZE + POOL_NONCE_SIZE;
std::vector<uint8_t>& extra = block1.miner_tx.extra;
std::string extraAsString(reinterpret_cast<const char*>(extra.data()), extra.size());
size_t MERGE_MINING_TAG_RESERVED_SIZE_EX = MERGE_MINING_TAG_RESERVED_SIZE + POOL_NONCE_SIZE;
std::vector<uint8_t>& extra = block1.miner_tx.extra;
std::string extraAsString(reinterpret_cast<const char*>(extra.data()), extra.size());
std::string extraNonceTemplate;
extraNonceTemplate.push_back(TX_EXTRA_NONCE);
extraNonceTemplate.push_back(MERGE_MINING_TAG_RESERVED_SIZE_EX);
extraNonceTemplate.append(MERGE_MINING_TAG_RESERVED_SIZE, '\0');
std::string extraNonceTemplate;
extraNonceTemplate.push_back(TX_EXTRA_NONCE);
extraNonceTemplate.push_back(MERGE_MINING_TAG_RESERVED_SIZE_EX);
extraNonceTemplate.append(MERGE_MINING_TAG_RESERVED_SIZE, '\0');
size_t extraNoncePos = extraAsString.find(extraNonceTemplate);
if (std::string::npos == extraNoncePos) {
return false;
}
cryptonote::tx_extra_merge_mining_tag tag;
tag.depth = 0;
if (!cryptonote::get_block_header_hash(block2, tag.merkle_root)) {
size_t extraNoncePos = extraAsString.find(extraNonceTemplate);
if (std::string::npos == extraNoncePos) {
return false;
}
}
std::vector<uint8_t> extraNonceReplacement;
if (!cryptonote::append_mm_tag_to_extra(extraNonceReplacement, tag)) {
cryptonote::tx_extra_merge_mining_tag tag;
tag.depth = 0;
if (!cryptonote::get_block_header_hash(block2, tag.merkle_root)) {
return false;
}
}
if (MERGE_MINING_TAG_RESERVED_SIZE < extraNonceReplacement.size()) {
std::vector<uint8_t> extraNonceReplacement;
if (!cryptonote::append_mm_tag_to_extra(extraNonceReplacement, tag)) {
return false;
}
}
size_t diff = (extraNonceTemplate.size() + POOL_NONCE_SIZE) - extraNonceReplacement.size();
if (0 < diff) {
extraNonceReplacement.push_back(TX_EXTRA_NONCE);
extraNonceReplacement.push_back(static_cast<uint8_t>(diff - 2));
}
if (MERGE_MINING_TAG_RESERVED_SIZE < extraNonceReplacement.size()) {
return false;
}
std::copy(extraNonceReplacement.begin(), extraNonceReplacement.end(), extra.begin() + extraNoncePos);
size_t diff = (extraNonceTemplate.size() + POOL_NONCE_SIZE) - extraNonceReplacement.size();
if (0 < diff) {
extraNonceReplacement.push_back(TX_EXTRA_NONCE);
extraNonceReplacement.push_back(static_cast<uint8_t>(diff - 2));
}
} else {
cryptonote::tx_extra_merge_mining_tag mm_tag;
mm_tag.depth = 0;
if (!cryptonote::get_block_header_hash(block2, mm_tag.merkle_root)) return false;
std::copy(extraNonceReplacement.begin(), extraNonceReplacement.end(), extra.begin() + extraNoncePos);
block1.miner_tx.extra.clear();
if (!cryptonote::append_mm_tag_to_extra(block1.miner_tx.extra, mm_tag)) return false;
}
return true;
}
@@ -174,7 +163,7 @@ NAN_METHOD(convert_blob) {
if (!parse_and_validate_block_from_blob(input, b)) return THROW_ERROR_EXCEPTION("Failed to parse block");
block b2 = AUTO_VAL_INIT(b2);
if (info.Length() > 2) { // MM
if (info.Length() > 2 && !info[2]->IsNumber()) { // MM
b2.set_blob_type(BLOB_TYPE_FORKNOTE2); // Only forknote 2 blob types support being mm as child coin
Local<Object> child_target = info[2]->ToObject();
blobdata child_input = std::string(Buffer::Data(child_target), Buffer::Length(child_target));
@@ -188,9 +177,9 @@ NAN_METHOD(convert_blob) {
if (!construct_parent_block(b, parent_block)) return THROW_ERROR_EXCEPTION("convert_blob: Failed to construct parent block");
if (!get_block_hashing_blob(parent_block, output)) return THROW_ERROR_EXCEPTION("convert_blob: Failed to create mining block");
} else {
if (BLOB_TYPE_CRYPTONOTE == blob_type && info.Length() > 2) { // MM
if (!fillExtra(b, b2)) {
return THROW_ERROR_EXCEPTION("convert_blob: Failed to add merged mining tag to parent block extra (convert_blob)");
if (BLOB_TYPE_CRYPTONOTE == blob_type && info.Length() > 2 && !info[2]->IsNumber()) { // MM
if (!fillExtraMM(b, b2)) {
return THROW_ERROR_EXCEPTION("convert_blob: Failed to add merged mining tag to parent block extra");
}
}
if (!get_block_hashing_blob(b, output)) return THROW_ERROR_EXCEPTION("convert_blob: Failed to create mining block");
@@ -260,7 +249,7 @@ NAN_METHOD(construct_block_blob) {
if (!parse_and_validate_block_from_blob(block_template_blob, b)) return THROW_ERROR_EXCEPTION("Failed to parse block");
block b2 = AUTO_VAL_INIT(b2);
if (info.Length() > 3) { // MM
if (info.Length() > 3 && !info[3]->IsNumber()) { // MM
b2.set_blob_type(BLOB_TYPE_FORKNOTE2); // Only forknote 2 blob types support being mm as child coin
Local<Object> child_target = info[3]->ToObject();
blobdata child_input = std::string(Buffer::Data(child_target), Buffer::Length(child_target));
@@ -275,8 +264,8 @@ NAN_METHOD(construct_block_blob) {
if (POW_TYPE_NOT_SET != pow_type) b.minor_version = pow_type;
if (!construct_parent_block(b, parent_block)) return THROW_ERROR_EXCEPTION("Failed to construct parent block");
if (!mergeBlocks(parent_block, b, std::vector<crypto::hash>())) return THROW_ERROR_EXCEPTION("Failed to postprocess mining block");
} else if (BLOB_TYPE_CRYPTONOTE == blob_type && info.Length() > 3) { // MM
if (!fillExtra(b, b2)) {
} else if (BLOB_TYPE_CRYPTONOTE == blob_type && info.Length() > 3 && !info[3]->IsNumber()) { // MM
if (!fillExtraMM(b, b2)) {
return THROW_ERROR_EXCEPTION("Failed to add merged mining tag to parent block extra");
}
}
@@ -420,7 +409,7 @@ NAN_METHOD(fill_extra) {
if (!fillExtra(b, b2)) {
if (!fillExtraMM(b, b2)) {
return THROW_ERROR_EXCEPTION("Failed to add merged mining tag to parent block extra (convert_blob)");
}
if (!get_block_hashing_blob(b, output)) return THROW_ERROR_EXCEPTION("Failed to create mining block");
@@ -442,4 +431,4 @@ NAN_MODULE_INIT(init) {
Nan::Set(target, Nan::New("fill_extra").ToLocalChecked(), Nan::GetFunction(Nan::New<FunctionTemplate>(fill_extra)).ToLocalChecked());
}
NODE_MODULE(cryptoforknote, init)
NODE_MODULE(cryptoforknote, init)