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wip: chain sync winner check

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This commit is contained in:
Jeromy 2020-04-07 15:54:01 -07:00
parent 9fd1b95fd5
commit 056284c00b
1 changed files with 19 additions and 28 deletions
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47
chain/sync.go
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@ -511,6 +511,11 @@ func (syncer *Syncer) ValidateBlock(ctx context.Context, b *types.FullBlock) err
return xerrors.Errorf("load parent tipset failed (%s): %w", h.Parents, err)
}
prevBeacon, err := syncer.getLatestBeaconEntry(baseTs)
if err != nil {
return xerrors.Errorf("failed to get latest beacon entry: %w", err)
}
nulls := h.Height - (baseTs.Height() + 1)
// fast checks first
@ -543,36 +548,16 @@ func (syncer *Syncer) ValidateBlock(ctx context.Context, b *types.FullBlock) err
return xerrors.Errorf("received block was from slashed or invalid miner")
}
// TODO fix winners
/*
mpow, tpow, err := stmgr.GetPower(ctx, syncer.sm, baseTs, h.Miner)
if err != nil {
return xerrors.Errorf("failed getting power: %w", err)
}
mpow, tpow, err := stmgr.GetPower(ctx, syncer.sm, baseTs, h.Miner)
if err != nil {
return xerrors.Errorf("failed getting power: %w", err)
}
if !types.IsTicketWinner(h.Ticket.VRFProof, mpow, tpow) {
return xerrors.Errorf("miner created a block but was not a winner")
}
ssize, err := stmgr.GetMinerSectorSize(ctx, syncer.sm, baseTs, h.Miner)
if err != nil {
return xerrors.Errorf("failed to get sector size for block miner: %w", err)
}
snum := types.BigDiv(mpow, types.NewInt(uint64(ssize)))
if len(h.EPostProof.Candidates) == 0 {
return xerrors.Errorf("no candidates")
}
wins := make(map[uint64]bool)
for _, t := range h.EPostProof.Candidates {
if wins[t.ChallengeIndex] {
return xerrors.Errorf("block had duplicate epost candidates")
}
wins[t.ChallengeIndex] = true
if !types.IsTicketWinner(t.Partial, ssize, snum.Uint64(), tpow) {
return xerrors.Errorf("miner created a block but was not a winner")
}
}
*/
// TODO: validate winning post proof
return nil
})
@ -641,11 +626,17 @@ func (syncer *Syncer) ValidateBlock(ctx context.Context, b *types.FullBlock) err
if err := h.Miner.MarshalCBOR(buf); err != nil {
return xerrors.Errorf("failed to marshal miner address to cbor: %w", err)
}
vrfBase, err := syncer.sm.ChainStore().GetRandomness(ctx, baseTs.Cids(), crypto.DomainSeparationTag_TicketProduction, int64(h.Height)-1, buf.Bytes())
if err != nil {
return xerrors.Errorf("failed to get randomness for verifying election proof: %w", err)
}
baseBeacon := prevBeacon
if len(h.BeaconEntries) > 0 {
baseBeacon = h.BeaconEntries[len(h.BeaconEntries)-1]
}
err = gen.VerifyVRF(ctx, waddr, vrfBase, h.Ticket.VRFProof)
if err != nil {
return xerrors.Errorf("validating block tickets failed: %w", err)