public override void Run(RuleContext context)
{
Guard.NotNull(context.ValidationContext.ChainedHeaderToValidate, nameof(context.ValidationContext.ChainedHeaderToValidate));
ChainedHeader chainedHeader = context.ValidationContext.ChainedHeaderToValidate;
// A version of precisely 7 is what is currently generated by the legacy C++ nodes.
// The stratisX block validation rules mandate if (!IsProtocolV3(nTime)) && (nVersion > 7), then reject block.
// Further, if (IsProtocolV2(nHeight) && nVersion < 7), then reject block.
// And lastly, if (!IsProtocolV2(nHeight) && nVersion > 6), then reject block.
// Protocol version determination is based on either the block height or timestamp as shown:
// IsProtocolV2(nHeight) { return TestNet() || nHeight > 0; }
// IsProtocolV3(nTime) { return TestNet() || nTime > 1470467000; }
// The mainnet genesis block has nTime = 1470713393, so V3 is applied immediately and this supersedes V2.
// The block versions have therefore been version 7 since genesis on Stratis mainnet.
// Whereas BIP9 mandates that the top bits of version be 001. So a standard node should never generate
// block versions above 7 and below 0x20000000.
// The acceptable common subset of the rules is therefore that the block version must be >= 7.
if (chainedHeader.Header.Version < 7)
{
this.Logger.LogTrace("(-)[BAD_VERSION]");
ConsensusErrors.BadVersion.Throw();
}
}
}
