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Enable pak enforcement at mempool/block level when appropriate

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This commit is contained in:
Gregory Sanders 2019-05-31 13:09:53 -04:00
parent 802a055191
commit 3605505c94
1 changed files with 19 additions and 0 deletions
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19
src/validation.cpp
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@ -608,6 +608,13 @@ static bool AcceptToMemoryPoolWorker(const CChainParams& chainparams, CTxMemPool
if (fRequireStandard && !IsStandardTx(tx, reason))
return state.DoS(0, false, REJECT_NONSTANDARD, reason);
// And now do PAK checks. Filtered by next blocks' enforced list
if (chainparams.GetEnforcePak()) {
if (!IsPAKValidTx(tx, GetActivePAKList(chainActive.Tip(), chainparams.GetConsensus()))) {
return state.DoS(0, false, REJECT_NONSTANDARD, "invalid-pegout-proof");
}
}
// Do not work on transactions that are too small.
// A transaction with 1 segwit input and 1 P2WPHK output has non-witness size of 82 bytes.
// Transactions smaller than this are not relayed to reduce unnecessary malloc overhead.
@ -2117,6 +2124,18 @@ bool CChainState::ConnectBlock(const CBlock& block, CValidationState& state, CBl
txdata.reserve(block.vtx.size()); // Required so that pointers to individual PrecomputedTransactionData don't get invalidated
// ELEMENTS:
// Enforce PAK post-dynafed
if (chainparams.GetEnforcePak() && !block.m_dyna_params.IsNull()) {
// GetActivePAKList computes for the following block, so use previous index
CPAKList paklist = GetActivePAKList(pindex->pprev, chainparams.GetConsensus());
for (const auto& tx : block.vtx) {
if (!IsPAKValidTx(*tx, paklist)) {
return state.DoS(100, error("ConnectBlock(): Bad PAK transaction"), REJECT_INVALID, "bad-pak-tx");
}
}
}
// Used when ConnectBlock() results are unneeded for mempool ejection
std::set<std::pair<uint256, COutPoint>> setPeginsSpentDummy;