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Merge pull request #5774 from filecoin-project/fix/post-fresh-rand

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wdpost: Always use head tipset to get randomness
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Łukasz Magiera 2021-03-11 10:17:46 +01:00 committed by GitHub
commit edccf2457f
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1 changed files with 6 additions and 1 deletions
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7
storage/wdpost_run.go
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@ -481,7 +481,12 @@ func (s *WindowPoStScheduler) runPost(ctx context.Context, di dline.Info, ts *ty
return nil, xerrors.Errorf("failed to marshal address to cbor: %w", err)
}
rand, err := s.api.ChainGetRandomnessFromBeacon(ctx, ts.Key(), crypto.DomainSeparationTag_WindowedPoStChallengeSeed, di.Challenge, buf.Bytes())
headTs, err := s.api.ChainHead(ctx)
if err != nil {
return nil, xerrors.Errorf("getting current head: %w", err)
}
rand, err := s.api.ChainGetRandomnessFromBeacon(ctx, headTs.Key(), crypto.DomainSeparationTag_WindowedPoStChallengeSeed, di.Challenge, buf.Bytes())
if err != nil {
return nil, xerrors.Errorf("failed to get chain randomness from beacon for window post (ts=%d; deadline=%d): %w", ts.Height(), di, err)
}