void SealEngineFace::verifyTransaction(ImportRequirements::value _ir, TransactionBase const& _t, BlockHeader const&) const
{
if (_ir & ImportRequirements::TransactionSignatures)
_t.checkLowS();
}
void SealEngineFace::verifyTransaction(ImportRequirements::value _ir, TransactionBase const& _t,
BlockHeader const& _header, u256 const& _gasUsed) const
{
if ((_ir & ImportRequirements::TransactionSignatures) && _header.number() < chainParams().EIP158ForkBlock && _t.isReplayProtected())
BOOST_THROW_EXCEPTION(InvalidSignature());
if ((_ir & ImportRequirements::TransactionSignatures) &&
_header.number() < chainParams().experimentalForkBlock && _t.hasZeroSignature())
BOOST_THROW_EXCEPTION(InvalidSignature());
if ((_ir & ImportRequirements::TransactionBasic) &&
_header.number() >= chainParams().experimentalForkBlock && _t.hasZeroSignature() &&
(_t.value() != 0 || _t.gasPrice() != 0 || _t.nonce() != 0))
BOOST_THROW_EXCEPTION(InvalidZeroSignatureTransaction() << errinfo_got((bigint)_t.gasPrice()) << errinfo_got((bigint)_t.value()) << errinfo_got((bigint)_t.nonce()));
if (_header.number() >= chainParams().homesteadForkBlock && (_ir & ImportRequirements::TransactionSignatures) && _t.hasSignature())
_t.checkLowS();
eth::EVMSchedule const& schedule = evmSchedule(_header.number());
// Pre calculate the gas needed for execution
if ((_ir & ImportRequirements::TransactionBasic) && _t.baseGasRequired(schedule) > _t.gas())
BOOST_THROW_EXCEPTION(OutOfGasIntrinsic() << RequirementError(
(bigint)(_t.baseGasRequired(schedule)), (bigint)_t.gas()));
// Avoid transactions that would take us beyond the block gas limit.
if (_gasUsed + (bigint)_t.gas() > _header.gasLimit())
BOOST_THROW_EXCEPTION(BlockGasLimitReached() << RequirementErrorComment(
(bigint)(_header.gasLimit() - _gasUsed), (bigint)_t.gas(),
string("_gasUsed + (bigint)_t.gas() > _header.gasLimit()")));
}