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consensus/beacon: check ttd reached on pos blocks #25552

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Merged
merged 3 commits into from
Aug 19, 2022
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consensus/beacon: check ttd reached on pos blocks #25552

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consensus/beacon: check ttd reached on pos blocks
MariusVanDerWijden Aug 19, 2022
6d35842
consensus/beacon: check ttd reached on pos blocks
MariusVanDerWijden Aug 19, 2022
7387e7e
consensus/beacon: check ttd reached on pos blocks
MariusVanDerWijden Aug 19, 2022
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12 changes: 11 additions & 1 deletion consensus/beacon/consensus.go
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Original file line number Diff line number Diff line change
Expand Up @@ -114,8 +114,18 @@ func (beacon *Beacon) VerifyHeaders(chain consensus.ChainHeaderReader, headers [
}
}

// All the headers have passed the transition point, use new rules.
if len(preHeaders) == 0 {
// All the headers are pos headers. Verify that the parent block reached total terminal difficulty.
if reached, _ := IsTTDReached(chain, headers[0].ParentHash, headers[0].Number.Uint64()-1); !reached {
// TTD not reached for the first block, mark subsequent with invalid terminal block
results := make(chan error, len(headers))
go func() {
for i := 0; i < len(headers); i++ {
results <- consensus.ErrInvalidTerminalBlock
}
}()
return make(chan struct{}), results
}
return beacon.verifyHeaders(chain, headers, nil)
}

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