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WIP: Fixed extra field deserialization.

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This commit is contained in:
Jianping Wu 2019-03-07 22:07:49 -08:00
parent adb3502f77
commit 4d44c773c6
2 changed files with 27 additions and 21 deletions
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18
src/cn_utils/cryptonote_basic/cryptonote_format_utils.cpp
View File

@ -594,12 +594,18 @@ namespace cryptonote
//---------------------------------------------------------------
bool append_keva_block_to_extra(std::vector<uint8_t>& tx_extra, const tx_extra_keva_block& keva_block)
{
blobdata blob;
if (!t_serializable_object_to_blob(keva_block, blob))
return false;
tx_extra.push_back(TX_EXTRA_KEVA_BLOCK_TAG);
std::copy(reinterpret_cast<const uint8_t*>(blob.data()), reinterpret_cast<const uint8_t*>(blob.data() + blob.size()), std::back_inserter(tx_extra));
// convert to variant
tx_extra_field field = tx_extra_keva_block{ keva_block };
// serialize
std::ostringstream oss;
binary_archive<true> ar(oss);
bool r = ::do_serialize(ar, field);
CHECK_AND_NO_ASSERT_MES_L1(r, false, "failed to serialize tx extra keva block");
// append
std::string tx_extra_str = oss.str();
size_t pos = tx_extra.size();
tx_extra.resize(tx_extra.size() + tx_extra_str.size());
memcpy(&tx_extra[pos], tx_extra_str.data(), tx_extra_str.size());
return true;
}
//---------------------------------------------------------------

30
src/rpc/mining.cpp
View File

@ -928,6 +928,20 @@ UniValue getblocktemplate(const JSONRPCRequest& request)
}
cn_block.miner_tx = miner_tx;
// No transactions other than coinbase.
cn_block.tx_hashes.clear();
// Copy keva block to extra so that we can use it in submitblock.
CDataStream stream(SER_NETWORK, PROTOCOL_VERSION);
stream << *pblock;
std::string kevaBlockData = stream.str();
cryptonote::tx_extra_keva_block extra_keva_block;
extra_keva_block.keva_block = kevaBlockData;
if (!cryptonote::append_keva_block_to_extra(cn_block.miner_tx.extra, extra_keva_block)) {
throw JSONRPCError(RPC_INTERNAL_ERROR, "Internal error: failed to add block");
}
// Now cn_block is finalized, we can calculate the reserved offset position.
cryptonote::blobdata block_blob = cryptonote::t_serializable_object_to_blob(cn_block);
crypto::public_key tx_pub_key = cryptonote::get_tx_pub_key_from_extra(cn_block.miner_tx);
if(tx_pub_key == crypto::null_pkey) {
@ -942,21 +956,7 @@ UniValue getblocktemplate(const JSONRPCRequest& request)
{
throw JSONRPCError(RPC_INTERNAL_ERROR, "Internal error: Failed to calculate offset");
}
// No transactions other than coinbase.
cn_block.tx_hashes.clear();
// Copy keva block to extra so that we can use it in submitblock.
CDataStream stream(SER_NETWORK, PROTOCOL_VERSION);
stream << *pblock;
std::string kevaBlockData = HexStr(stream.begin(), stream.end());
cryptonote::tx_extra_keva_block extra_keva_block;
extra_keva_block.keva_block = kevaBlockData;
if (!cryptonote::append_keva_block_to_extra(cn_block.miner_tx.extra, extra_keva_block)) {
throw JSONRPCError(RPC_INTERNAL_ERROR, "Internal error: failed to add block");
}
cryptonote::blobdata template_blob = cryptonote::block_to_blob(cn_block);
std::string hex_template_blob = HexStr(template_blob.begin(), template_blob.end());
std::string hex_template_blob = HexStr(block_blob.begin(), block_blob.end());
UniValue result(UniValue::VOBJ);
const uint64_t difficulty = ConvertNBitsToDiff(pblock->nBits);