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Genesis block also used cn header.

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This commit is contained in:
Jianping Wu 2019-03-21 16:20:45 -07:00
parent 7b07bb8817
commit ddc43217ca
5 changed files with 38 additions and 26 deletions
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37
src/chainparams.cpp
View File

@ -29,11 +29,15 @@ static CBlock CreateGenesisBlock(const char* pszTimestamp, const CScript& genesi
CBlock genesis;
genesis.nTime = nTime;
genesis.nBits = nBits;
genesis.nNonce = nNonce;
genesis.nNonce = 0; // Used as height.
genesis.nVersion = nVersion;
genesis.vtx.push_back(MakeTransactionRef(std::move(txNew)));
genesis.hashPrevBlock.SetNull();
genesis.hashMerkleRoot = BlockMerkleRoot(genesis);
genesis.cnHeader.major_version = 10; // Cryptonight variant 4
genesis.cnHeader.prev_id = genesis.GetHash();
genesis.cnHeader.nonce = nNonce;
return genesis;
}
@ -114,9 +118,9 @@ public:
const uint32_t genesisBlockReward = 0.00001 * COIN; // A small reward for the core developers :-)
//TODO: target: 0x1e0fffff, update timestampe and nonce.
genesis = CreateGenesisBlock(1553145843, 1706, 0x1f0ffff0, 1, genesisBlockReward);
genesis = CreateGenesisBlock(1553145843, 6146, 0x1f0ffff0, 1, genesisBlockReward);
consensus.hashGenesisBlock = genesis.GetHash();
assert(consensus.hashGenesisBlock == uint256S("0x413c6fb7d5a8484d027ce6654fdbe0567cab5684da807cd2bafb7808228710ad"));
assert(consensus.hashGenesisBlock == uint256S("0x8bc96b56465c9aa5f6511c4d2fca2f6bf6ae67b9c9553272908ae511d59e9b77"));
assert(genesis.hashMerkleRoot == uint256S("0xb21d4680875c0e472b7dbf3dbab2aaeb2dbbb5fa8b154f978b5ea0706d1fd5b9"));
// Note that of those with the service bits flag, most only support a subset of possible options
@ -203,16 +207,35 @@ public:
nDefaultPort = 19335;
nPruneAfterHeight = 1000;
genesis = CreateGenesisBlock(1553100443, 404, 0x1f0ffff0, 1, 500 * COIN);
genesis = CreateGenesisBlock(1553100443, 5758, 0x1f0ffff0, 1, 500 * COIN);
consensus.hashGenesisBlock = genesis.GetHash();
assert(consensus.hashGenesisBlock == uint256S("b2c61c05d5a1d34c6664784500715fc2959f828c32cddefc835ec037b138d0bc"));
#if 0
arith_uint256 hashTarget = arith_uint256().SetCompact(genesis.nBits);
uint256 hashGenesisBlock = uint256S("0x01");
if (genesis.GetHash() != hashGenesisBlock) {
printf("recalculating params for testnet.\n");
printf("old testnet genesis nonce: %d\n", genesis.cnHeader.nonce);
printf("old testnet genesis hash: %s\n", hashGenesisBlock.ToString().c_str());
// deliberately empty for loop finds nonce value.
printf("hashTarget is: %s\n", hashTarget.ToString().c_str());
for(genesis.cnHeader.nonce = 0; hashTarget < UintToArith256(genesis.GetPoWHash()); genesis.cnHeader.nonce++) {
printf("nNonce: %d\n\n", genesis.cnHeader.nonce);
}
printf("new testnet genesis merkle root: %s\n", genesis.hashMerkleRoot.ToString().c_str());
printf("new testnet genesis nonce: %d\n", genesis.cnHeader.nonce);
printf("new testnet genesis hash: %s\n", genesis.GetHash().ToString().c_str());
}
#endif
assert(consensus.hashGenesisBlock == uint256S("cb3c982e8c3d3f7d03b745ba9c511d0a586045b4170c977a72883d3277bdd5e6"));
assert(genesis.hashMerkleRoot == uint256S("3cf6c3b6da3f4058853ee70369ee43d473aca91ae8fc8f44a645beb21c392d80"));
vFixedSeeds.clear();
vSeeds.clear();
// nodes with support for servicebits filtering should be at the top
#if 0
vSeeds.emplace_back("testnet-seed.kevacoin.org");
vSeeds.emplace_back("testnet-seed.honourchat.com");
#endif
base58Prefixes[PUBKEY_ADDRESS] = std::vector<unsigned char>(1,55); // P
base58Prefixes[SCRIPT_ADDRESS] = std::vector<unsigned char>(1,5);
@ -223,7 +246,9 @@ public:
base58Prefixes[KEVA_NAMESPACE] = std::vector<unsigned char>(1,53); // N
bech32_hrp = "tkva";
#if 0
vFixedSeeds = std::vector<SeedSpec6>(pnSeed6_test, pnSeed6_test + ARRAYLEN(pnSeed6_test));
#endif
fDefaultConsistencyChecks = false;
fRequireStandard = false;
@ -288,7 +313,7 @@ public:
nDefaultPort = 19444;
nPruneAfterHeight = 1000;
genesis = CreateGenesisBlock(1553147907, 0, 0x207fffff, 1, 50 * COIN);
genesis = CreateGenesisBlock(1553147907, 6, 0x207fffff, 1, 50 * COIN);
consensus.hashGenesisBlock = genesis.GetHash();
assert(consensus.hashGenesisBlock == uint256S("0x193385e60d04db90e30332508d97401ec3568ee2fe765b279fd9b3e4b0b78ca5"));
assert(genesis.hashMerkleRoot == uint256S("0x13ec98c3307b8e6b67b91c605c7347916a99f9dfde7b5d88365aaef322192314"));

12
src/primitives/block.cpp
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@ -25,12 +25,6 @@ uint256 CBlockHeader::GetHash() const
uint256 CBlockHeader::GetCryptonoteFastHash() const
{
uint256 thash;
if (hashPrevBlock.IsNull()) {
// Genesis block has no CN fast hash.
memset(thash.begin(), 0xff, thash.size());
return thash;
}
// prev_id of CN header is used to store the kevacoin block hash.
// The value of prev_id and block hash must be the same to prove
// that PoW has been properly done.
@ -46,12 +40,6 @@ uint256 CBlockHeader::GetCryptonoteFastHash() const
uint256 CBlockHeader::GetPoWHash() const
{
uint256 thash;
if (hashPrevBlock.IsNull()) {
// Genesis block
cn_slow_hash(BEGIN(nVersion), 80, BEGIN(thash), 4, 0, 0);
return thash;
}
// prev_id of CN header is used to store the kevacoin block hash.
// The value of prev_id and block hash must be the same to prove
// that PoW has been properly done.

3
src/primitives/block.h
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@ -147,8 +147,7 @@ public:
READWRITE(nTime);
READWRITE(nBits);
READWRITE(nNonce);
// Genesis block does not have cnHeader.
if (!hashPrevBlock.IsNull() && !legacyMode) {
if (!legacyMode) {
READWRITE(cnHeader);
}
}

10
src/rpc/mining.cpp
View File

@ -416,29 +416,29 @@ UniValue getblocktemplate(const JSONRPCRequest& request)
// reserve_size
if (request.params[0].getType() != UniValue::VNUM) {
throw JSONRPCError(RPC_INVALID_PARAMS, "reserve_size must be an integer");
throw CN_JSONRPCError(CORE_RPC_ERROR_CODE_WRONG_PARAM, "reserve_size must be an integer");
}
reserve_size = request.params[0].get_int();
if (reserve_size <= 0 || reserve_size > MAX_RESERVE_SIZE) {
throw JSONRPCError(RPC_INVALID_PARAMS, "Invalid reserve_size");
throw CN_JSONRPCError(CORE_RPC_ERROR_CODE_WRONG_PARAM, "Invalid reserve_size");
}
// wallet_address
if (request.params[1].getType() != UniValue::VSTR) {
throw JSONRPCError(RPC_INVALID_PARAMS, "Invalid wallet address, string expected");
throw CN_JSONRPCError(CORE_RPC_ERROR_CODE_WRONG_PARAM, "Invalid wallet address, string expected");
}
wallet_address = request.params[1].get_str();
walletDest = DecodeDestination(wallet_address);
if (walletDest.which() == 0) {
throw JSONRPCError(RPC_INVALID_PARAMS, "Invalid wallet address");
throw CN_JSONRPCError(CORE_RPC_ERROR_CODE_WRONG_PARAM, "Invalid wallet address");
}
LOCK(cs_main);
std::string strMode = "template";
#if 1
#if 0
// TODO: IMPORTANT!!!! uncomment the following!!!
if (g_connman->GetNodeCount(CConnman::CONNECTIONS_ALL) == 0)
throw JSONRPCError(RPC_CLIENT_NOT_CONNECTED, "Kevacoin is not connected!");

2
src/validation.cpp
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@ -1841,7 +1841,7 @@ bool CChainState::ConnectBlock(const CBlock& block, CValidationState& state, CBl
// Check the height of the block is the same as its height on the blockchain.
// Note: nNonce now holds the value of height. It is no longer used as nonce.
if (!block.hashPrevBlock.IsNull() && (int32_t)block.nNonce != pindex->nHeight)
if ((int32_t)block.nNonce != pindex->nHeight)
return error("%s: block height mismatch", __func__);
// Check it again in case a previous version let a bad block in