113 lines
3.8 KiB
Go
113 lines
3.8 KiB
Go
package sealing
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import (
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"context"
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"github.com/filecoin-project/specs-actors/actors/builtin"
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"github.com/multiformats/go-multihash"
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"golang.org/x/xerrors"
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"github.com/filecoin-project/go-address"
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"github.com/filecoin-project/lotus/build"
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"github.com/filecoin-project/lotus/chain/actors"
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"github.com/filecoin-project/lotus/chain/types"
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)
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// TODO: For now we handle this by halting state execution, when we get jsonrpc reconnecting
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// We should implement some wait-for-api logic
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type ErrApi struct{ error }
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type ErrInvalidDeals struct{ error }
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type ErrExpiredDeals struct{ error }
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type ErrBadCommD struct{ error }
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type ErrExpiredTicket struct{ error }
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// checkPieces validates that:
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// - Each piece han a corresponding on chain deal
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// - Piece commitments match with on chain deals
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// - Piece sizes match
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// - Deals aren't expired
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func checkPieces(ctx context.Context, si SectorInfo, api sealingApi) error {
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head, err := api.ChainHead(ctx)
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if err != nil {
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return &ErrApi{xerrors.Errorf("getting chain head: %w", err)}
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}
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for i, piece := range si.Pieces {
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deal, err := api.StateMarketStorageDeal(ctx, piece.DealID, nil)
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if err != nil {
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return &ErrApi{xerrors.Errorf("getting deal %d for piece %d: %w", piece.DealID, i, err)}
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}
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h, err := multihash.Decode(deal.Proposal.PieceCID.Hash())
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if err != nil {
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return &ErrInvalidDeals{xerrors.Errorf("decoding piece CID: %w", err)}
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}
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if string(h.Digest) != string(piece.CommP) {
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return &ErrInvalidDeals{xerrors.Errorf("piece %d (or %d) of sector %d refers deal %d with wrong CommP: %x != %x", i, len(si.Pieces), si.SectorID, piece.DealID, piece.CommP, h.Digest)}
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}
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if piece.Size != deal.Proposal.PieceSize.Unpadded() {
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return &ErrInvalidDeals{xerrors.Errorf("piece %d (or %d) of sector %d refers deal %d with different size: %d != %d", i, len(si.Pieces), si.SectorID, piece.DealID, piece.Size, deal.Proposal.PieceSize)}
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}
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if head.Height() >= deal.Proposal.StartEpoch {
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return &ErrExpiredDeals{xerrors.Errorf("piece %d (or %d) of sector %d refers expired deal %d - should start at %d, head %d", i, len(si.Pieces), si.SectorID, piece.DealID, deal.Proposal.StartEpoch, head.Height())}
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}
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}
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return nil
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}
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// checkSeal checks that data commitment generated in the sealing process
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// matches pieces, and that the seal ticket isn't expired
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func checkSeal(ctx context.Context, maddr address.Address, si SectorInfo, api sealingApi) (err error) {
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head, err := api.ChainHead(ctx)
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if err != nil {
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return &ErrApi{xerrors.Errorf("getting chain head: %w", err)}
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}
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ssize, err := api.StateMinerSectorSize(ctx, maddr, head)
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if err != nil {
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return &ErrApi{err}
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}
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ccparams, err := actors.SerializeParams(&actors.ComputeDataCommitmentParams{
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DealIDs: si.deals(),
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SectorSize: ssize,
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})
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if err != nil {
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return xerrors.Errorf("computing params for ComputeDataCommitment: %w", err)
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}
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ccmt := &types.Message{
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To: actors.StorageMarketAddress,
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From: maddr,
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Value: types.NewInt(0),
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GasPrice: types.NewInt(0),
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GasLimit: types.NewInt(9999999999),
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Method: builtin.MethodsMarket.ComputeDataCommitment,
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Params: ccparams,
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}
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r, err := api.StateCall(ctx, ccmt, nil)
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if err != nil {
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return &ErrApi{xerrors.Errorf("calling ComputeDataCommitment: %w", err)}
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}
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if r.ExitCode != 0 {
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return &ErrBadCommD{xerrors.Errorf("receipt for ComputeDataCommitment had exit code %d", r.ExitCode)}
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}
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if string(r.Return) != string(si.CommD) {
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return &ErrBadCommD{xerrors.Errorf("on chain CommD differs from sector: %x != %x", r.Return, si.CommD)}
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}
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if int64(head.Height())-int64(si.Ticket.BlockHeight+build.SealRandomnessLookback) > build.SealRandomnessLookbackLimit {
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return &ErrExpiredTicket{xerrors.Errorf("ticket expired: seal height: %d, head: %d", si.Ticket.BlockHeight+build.SealRandomnessLookback, head.Height())}
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}
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return nil
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}
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