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Enforce 63 bit nValue limits

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This commit is contained in:
jl777
2019-03-01 22:43:16 -11:00
parent 1db23db8b7
commit 72c2649727
1 changed files with 14 additions and 2 deletions
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16
src/main.cpp
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@@ -1808,7 +1808,9 @@ bool AcceptToMemoryPool(CTxMemPool& pool, CValidationState &state, const CTransa
CAmount nValueOut = tx.GetValueOut();
CAmount nFees = nValueIn-nValueOut;
double dPriority = view.GetPriority(tx, chainActive.Height());
if ( KOMODO_BIT63SET(nValueOut) != 0 )
return state.DoS(100, error("AcceptToMemoryPool: GetValueOut too big"),REJECT_INVALID,"tx valueout is too big");
// Keep track of transactions that spend a coinbase, which we re-scan
// during reorgs to ensure COINBASE_MATURITY is still met.
bool fSpendsCoinbase = false;
@@ -3371,6 +3373,7 @@ bool ConnectBlock(const CBlock& block, CValidationState& state, CBlockIndex* pin
int64_t nTimeStart = GetTimeMicros();
CAmount nFees = 0;
int nInputs = 0;
uint64_t voutsum = 0,prevsum=0,valueout;
int64_t interest,sum = 0;
unsigned int nSigOps = 0;
CDiskTxPos pos(pindex->GetBlockPos(), GetSizeOfCompactSize(block.vtx.size()));
@@ -3490,9 +3493,18 @@ bool ConnectBlock(const CBlock& block, CValidationState& state, CBlockIndex* pin
txdata.emplace_back(tx);
valueout = tx.GetValueOut();
if ( KOMODO_BIT63SET(valueout) != 0 )
return state.DoS(100, error("ConnectBlock(): GetValueOut too big"),REJECT_INVALID,"tx valueout is too big");
prevsum = voutsum;
voutsum += valueout;
if ( KOMODO_BIT63SET(voutsum) != 0 )
return state.DoS(100, error("ConnectBlock(): voutsum too big"),REJECT_INVALID,"tx valueout is too big");
else if ( voutsum < prevsum )
return state.DoS(100, error("ConnectBlock(): voutsum less after adding valueout"),REJECT_INVALID,"tx valueout is too big");
if (!tx.IsCoinBase())
{
nFees += view.GetValueIn(chainActive.LastTip()->GetHeight(),&interest,tx,chainActive.LastTip()->nTime) - tx.GetValueOut();
nFees += view.GetValueIn(chainActive.LastTip()->GetHeight(),&interest,tx,chainActive.LastTip()->nTime) - valueout;
sum += interest;
std::vector<CScriptCheck> vChecks;