25b6dae9ea
* Fix code style in DIP2/DIP3 code (single statement ifs with curly braces) * Fix DIP3 RPC help strings * Handle review comments * Handle more review comments
94 lines
2.8 KiB
C++
94 lines
2.8 KiB
C++
// Copyright (c) 2017 The Dash Core developers
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// Distributed under the MIT software license, see the accompanying
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// file COPYING or http://www.opensource.org/licenses/mit-license.php.
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#include "cbtx.h"
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#include "specialtx.h"
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#include "deterministicmns.h"
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#include "simplifiedmns.h"
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#include "validation.h"
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#include "univalue.h"
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bool CheckCbTx(const CTransaction& tx, const CBlockIndex* pindexPrev, CValidationState& state)
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{
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AssertLockHeld(cs_main);
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if (!tx.IsCoinBase()) {
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return state.DoS(100, false, REJECT_INVALID, "bad-cbtx-invalid");
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}
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CCbTx cbTx;
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if (!GetTxPayload(tx, cbTx)) {
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return state.DoS(100, false, REJECT_INVALID, "bad-tx-payload");
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}
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if (cbTx.nVersion > CCbTx::CURRENT_VERSION) {
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return state.DoS(100, false, REJECT_INVALID, "bad-cbtx-version");
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}
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if (pindexPrev && pindexPrev->nHeight + 1 != cbTx.nHeight) {
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return state.DoS(100, false, REJECT_INVALID, "bad-cbtx-height");
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}
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return true;
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}
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// This can only be done after the block has been fully processed, as otherwise we won't have the finished MN list
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bool CheckCbTxMerkleRootMNList(const CBlock& block, const CBlockIndex* pindex, CValidationState& state)
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{
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AssertLockHeld(cs_main);
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if (block.vtx[0]->nType != TRANSACTION_COINBASE) {
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return true;
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}
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CCbTx cbTx;
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if (!GetTxPayload(*block.vtx[0], cbTx)) {
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return state.DoS(100, false, REJECT_INVALID, "bad-tx-payload");
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}
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if (pindex) {
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uint256 calculatedMerkleRoot;
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if (!CalcCbTxMerkleRootMNList(block, pindex->pprev, calculatedMerkleRoot, state)) {
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return state.DoS(100, false, REJECT_INVALID, "bad-cbtx-mnmerkleroot");
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}
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if (calculatedMerkleRoot != cbTx.merkleRootMNList) {
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return state.DoS(100, false, REJECT_INVALID, "bad-cbtx-mnmerkleroot");
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}
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}
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return true;
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}
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bool CalcCbTxMerkleRootMNList(const CBlock& block, const CBlockIndex* pindexPrev, uint256& merkleRootRet, CValidationState& state)
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{
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AssertLockHeld(cs_main);
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LOCK(deterministicMNManager->cs);
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CDeterministicMNList tmpMNList;
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if (!deterministicMNManager->BuildNewListFromBlock(block, pindexPrev, state, tmpMNList)) {
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return false;
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}
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CSimplifiedMNList sml(tmpMNList);
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bool mutated = false;
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merkleRootRet = sml.CalcMerkleRoot(&mutated);
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return !mutated;
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}
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std::string CCbTx::ToString() const
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{
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return strprintf("CCbTx(nHeight=%d, nVersion=%d, merkleRootMNList=%s)",
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nVersion, nHeight, merkleRootMNList.ToString());
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}
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void CCbTx::ToJson(UniValue& obj) const
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{
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obj.clear();
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obj.setObject();
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obj.push_back(Pair("version", (int)nVersion));
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obj.push_back(Pair("height", (int)nHeight));
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obj.push_back(Pair("merkleRootMNList", merkleRootMNList.ToString()));
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}
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