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Add arguments for parent chain characteristics

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This commit is contained in:
Steven Roose 2018-12-11 12:38:46 +01:00
parent 948f968f19
commit 238a72bead
7 changed files with 211 additions and 145 deletions
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94
src/chainparams.cpp
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@ -18,13 +18,25 @@
#include <boost/algorithm/string/classification.hpp>
#include <boost/algorithm/string/split.hpp>
static CScript StrHexToScriptWithDefault(std::string strScript, const CScript defaultScript)
{
CScript returnScript;
if (!strScript.empty()) {
std::vector<unsigned char> scriptData = ParseHex(strScript);
returnScript = CScript(scriptData.begin(), scriptData.end());
} else {
returnScript = defaultScript;
}
return returnScript;
}
// Safer for users if they load incorrect parameters via arguments.
static std::vector<unsigned char> CommitToArguments(const Consensus::Params& params, const std::string& networkID)
{
CSHA256 sha2;
unsigned char commitment[32];
sha2.Write((const unsigned char*)networkID.c_str(), networkID.length());
//sha2.Write((const unsigned char*)HexStr(params.fedpegScript).c_str(), HexStr(params.fedpegScript).length());
sha2.Write((const unsigned char*)HexStr(params.fedpegScript).c_str(), HexStr(params.fedpegScript).length());
sha2.Write((const unsigned char*)HexStr(params.signblockscript).c_str(), HexStr(params.signblockscript).length());
sha2.Finalize(commitment);
return std::vector<unsigned char>(commitment, commitment + 32);
@ -466,33 +478,6 @@ class CCustomParams : public CRegTestParams {
consensus.nMinimumChainWork = uint256S(args.GetArg("-con_nminimumchainwork", "0x0"));
consensus.defaultAssumeValid = uint256S(args.GetArg("-con_defaultassumevalid", "0x00"));
// No subsidy for custom chains by default
consensus.genesis_subsidy = args.GetArg("-con_blocksubsidy", 0);
// Note: This global is needed to avoid circular dependency
// Defaults to true for custom chains.
g_con_blockheightinheader = gArgs.GetBoolArg("-con_blockheightinheader", true);
// All non-zero coinbase outputs must go to this scriptPubKey
std::vector<unsigned char> man_bytes = ParseHex(gArgs.GetArg("-con_mandatorycoinbase", ""));
consensus.mandatory_coinbase_destination = CScript(man_bytes.begin(), man_bytes.end()); // Blank script allows any coinbase destination
initialFreeCoins = gArgs.GetArg("-initialfreecoins", 0);
// Determines type of genesis block
consensus.genesis_style = gArgs.GetArg("-con_genesis_style", "elements");
// Block signing encumberance script, default of 51 aka OP_TRUE
std::vector<unsigned char> sign_bytes = ParseHex(gArgs.GetArg("-signblockscript", "51"));
consensus.signblockscript = CScript(sign_bytes.begin(), sign_bytes.end());
// Default signature size is the size of dummy push, and single 72 byte DER signature
consensus.max_block_signature_size = gArgs.GetArg("-con_max_block_sig_size", 74);
g_signed_blocks = gArgs.GetBoolArg("-con_signed_blocks", true);
// Custom chains connect coinbase outputs to db by default
consensus.connect_genesis_outputs = gArgs.GetArg("-con_connect_coinbase", true);
anyonecanspend_aremine = gArgs.GetBoolArg("-anyonecanspendaremine", true);
nPruneAfterHeight = (uint64_t)args.GetArg("-npruneafterheight", nPruneAfterHeight);
fDefaultConsistencyChecks = args.GetBoolArg("-fdefaultconsistencychecks", fDefaultConsistencyChecks);
fMineBlocksOnDemand = args.GetBoolArg("-fmineblocksondemand", fMineBlocksOnDemand);
@ -517,12 +502,61 @@ class CCustomParams : public CRegTestParams {
std::copy(begin(magic_byte), end(magic_byte), pchMessageStart);
vSeeds.clear();
if (gArgs.IsArgSet("-seednode")) {
const auto seednodes = gArgs.GetArgs("-seednode");
if (args.IsArgSet("-seednode")) {
const auto seednodes = args.GetArgs("-seednode");
if (seednodes.size() != 1 || seednodes[0] != "0") {
vSeeds = seednodes;
}
}
//
// ELEMENTS fields
// Determines type of genesis block
consensus.genesis_style = gArgs.GetArg("-con_genesis_style", "elements");
// Block signing encumberance script, default of 51 aka OP_TRUE
std::vector<unsigned char> sign_bytes = ParseHex(gArgs.GetArg("-signblockscript", "51"));
consensus.signblockscript = CScript(sign_bytes.begin(), sign_bytes.end());
// Default signature size is the size of dummy push, and single 72 byte DER signature
consensus.max_block_signature_size = gArgs.GetArg("-con_max_block_sig_size", 74);
g_signed_blocks = gArgs.GetBoolArg("-con_signed_blocks", true);
// Note: This global is needed to avoid circular dependency
// Defaults to true for custom chains.
g_con_blockheightinheader = args.GetBoolArg("-con_blockheightinheader", true);
// No subsidy for custom chains by default
consensus.genesis_subsidy = args.GetArg("-con_blocksubsidy", 0);
// All non-zero coinbase outputs must go to this scriptPubKey
std::vector<unsigned char> man_bytes = ParseHex(args.GetArg("-con_mandatorycoinbase", ""));
consensus.mandatory_coinbase_destination = CScript(man_bytes.begin(), man_bytes.end()); // Blank script allows any coinbase destination
// Custom chains connect coinbase outputs to db by default
consensus.connect_genesis_outputs = args.GetArg("-con_connect_coinbase", true);
initialFreeCoins = gArgs.GetArg("-initialfreecoins", 0);
anyonecanspend_aremine = args.GetBoolArg("-anyonecanspendaremine", true);
consensus.has_parent_chain = args.GetBoolArg("-con_has_parent_chain", true);
// bitcoin regtest is the parent chain by default
parentGenesisBlockHash = uint256S(args.GetArg("-parentgenesisblockhash", "0f9188f13cb7b2c71f2a335e3a4fc328bf5beb436012afca590b1a11466e2206"));
// Either it has a parent chain or not
const bool parent_genesis_is_null = parentGenesisBlockHash == uint256();
assert(consensus.has_parent_chain != parent_genesis_is_null);
consensus.parentChainPowLimit = uint256S(args.GetArg("-con_parentpowlimit", "7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff"));
const CScript default_script(CScript() << OP_TRUE);
consensus.fedpegScript = StrHexToScriptWithDefault(args.GetArg("-fedpegscript", ""), default_script);
base58Prefixes[PARENT_PUBKEY_ADDRESS] = std::vector<unsigned char>(1, args.GetArg("-parentpubkeyprefix", 111));
base58Prefixes[PARENT_SCRIPT_ADDRESS] = std::vector<unsigned char>(1, args.GetArg("-parentscriptprefix", 196));
parent_bech32_hrp = args.GetArg("-parent_bech32_hrp", "bcrt");
// END ELEMENTS fields
//
}
void SetGenesisBlock() {