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Merge pull request #11690 from filecoin-project/asr/fix-drand-skyr

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fix: beacon: validate drand change at nv16 correctly
This commit is contained in:
Aayush Rajasekaran 2024-03-06 13:44:29 -05:00 committed by GitHub
commit 1f6e556d25
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GPG Key ID: B5690EEEBB952194
1 changed files with 9 additions and 5 deletions
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14
chain/beacon/beacon.go
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@ -89,11 +89,15 @@ func ValidateBlockValues(bSchedule Schedule, nv network.Version, h *types.BlockH
return xerrors.Errorf("expected final beacon entry in block to be at round %d, got %d", maxRound, last.Round)
}
// Verify that all other entries' rounds are as expected for the epochs in between parentEpoch and h.Height
for i, e := range h.BeaconEntries {
correctRound := currBeacon.MaxBeaconRoundForEpoch(nv, parentEpoch+abi.ChainEpoch(i)+1)
if e.Round != correctRound {
return xerrors.Errorf("unexpected beacon round %d, expected %d for epoch %d", e.Round, correctRound, parentEpoch+abi.ChainEpoch(i))
// If the beacon is UNchained, verify that the block only includes the rounds we want for the epochs in between parentEpoch and h.Height
// For chained beacons, you must have all the rounds forming a valid chain with prevEntry, so we can skip this step
if !currBeacon.IsChained() {
// Verify that all other entries' rounds are as expected for the epochs in between parentEpoch and h.Height
for i, e := range h.BeaconEntries {
correctRound := currBeacon.MaxBeaconRoundForEpoch(nv, parentEpoch+abi.ChainEpoch(i)+1)
if e.Round != correctRound {
return xerrors.Errorf("unexpected beacon round %d, expected %d for epoch %d", e.Round, correctRound, parentEpoch+abi.ChainEpoch(i))
}
}
}