package mock import ( "bytes" "context" "crypto/sha256" "fmt" "io" "math/rand" "sync" commcid "github.com/filecoin-project/go-fil-commcid" "github.com/filecoin-project/specs-actors/actors/abi" "github.com/filecoin-project/specs-storage/storage" "github.com/ipfs/go-cid" logging "github.com/ipfs/go-log" "golang.org/x/xerrors" "github.com/filecoin-project/lotus/extern/sector-storage/ffiwrapper" "github.com/filecoin-project/lotus/extern/sector-storage/storiface" ) var log = logging.Logger("sbmock") type SectorMgr struct { sectors map[abi.SectorID]*sectorState pieces map[cid.Cid][]byte sectorSize abi.SectorSize nextSectorID abi.SectorNumber proofType abi.RegisteredSealProof lk sync.Mutex } type mockVerif struct{} func NewMockSectorMgr(ssize abi.SectorSize, genesisSectors []abi.SectorID) *SectorMgr { rt, err := ffiwrapper.SealProofTypeFromSectorSize(ssize) if err != nil { panic(err) } sectors := make(map[abi.SectorID]*sectorState) for _, sid := range genesisSectors { sectors[sid] = §orState{ failed: false, state: stateCommit, } } return &SectorMgr{ sectors: sectors, pieces: map[cid.Cid][]byte{}, sectorSize: ssize, nextSectorID: 5, proofType: rt, } } const ( statePacking = iota statePreCommit stateCommit // nolint ) type sectorState struct { pieces []cid.Cid failed bool state int lk sync.Mutex } func (mgr *SectorMgr) NewSector(ctx context.Context, sector abi.SectorID) error { return nil } func (mgr *SectorMgr) AddPiece(ctx context.Context, sectorID abi.SectorID, existingPieces []abi.UnpaddedPieceSize, size abi.UnpaddedPieceSize, r io.Reader) (abi.PieceInfo, error) { log.Warn("Add piece: ", sectorID, size, mgr.proofType) var b bytes.Buffer tr := io.TeeReader(r, &b) c, err := ffiwrapper.GeneratePieceCIDFromFile(mgr.proofType, tr, size) if err != nil { return abi.PieceInfo{}, xerrors.Errorf("failed to generate piece cid: %w", err) } log.Warn("Generated Piece CID: ", c) mgr.lk.Lock() mgr.pieces[c] = b.Bytes() ss, ok := mgr.sectors[sectorID] if !ok { ss = §orState{ state: statePacking, } mgr.sectors[sectorID] = ss } mgr.lk.Unlock() ss.lk.Lock() ss.pieces = append(ss.pieces, c) ss.lk.Unlock() return abi.PieceInfo{ Size: size.Padded(), PieceCID: c, }, nil } func (mgr *SectorMgr) SectorSize() abi.SectorSize { return mgr.sectorSize } func (mgr *SectorMgr) AcquireSectorNumber() (abi.SectorNumber, error) { mgr.lk.Lock() defer mgr.lk.Unlock() id := mgr.nextSectorID mgr.nextSectorID++ return id, nil } func (mgr *SectorMgr) SealPreCommit1(ctx context.Context, sid abi.SectorID, ticket abi.SealRandomness, pieces []abi.PieceInfo) (out storage.PreCommit1Out, err error) { mgr.lk.Lock() ss, ok := mgr.sectors[sid] mgr.lk.Unlock() if !ok { return nil, xerrors.Errorf("no sector with id %d in storage", sid) } ss.lk.Lock() defer ss.lk.Unlock() ussize := abi.PaddedPieceSize(mgr.sectorSize).Unpadded() // TODO: verify pieces in sinfo.pieces match passed in pieces var sum abi.UnpaddedPieceSize for _, p := range pieces { sum += p.Size.Unpadded() } if sum != ussize { return nil, xerrors.Errorf("aggregated piece sizes don't match up: %d != %d", sum, ussize) } if ss.state != statePacking { return nil, xerrors.Errorf("cannot call pre-seal on sector not in 'packing' state") } opFinishWait(ctx) ss.state = statePreCommit pis := make([]abi.PieceInfo, len(ss.pieces)) for i, piece := range ss.pieces { pis[i] = abi.PieceInfo{ Size: pieces[i].Size, PieceCID: piece, } } commd, err := MockVerifier.GenerateDataCommitment(mgr.proofType, pis) if err != nil { return nil, err } _, _, cc, err := commcid.CIDToCommitment(commd) if err != nil { panic(err) } cc[0] ^= 'd' return cc, nil } func (mgr *SectorMgr) SealPreCommit2(ctx context.Context, sid abi.SectorID, phase1Out storage.PreCommit1Out) (cids storage.SectorCids, err error) { db := []byte(string(phase1Out)) db[0] ^= 'd' d, _ := commcid.DataCommitmentV1ToCID(db) commr := make([]byte, 32) for i := range db { commr[32-(i+1)] = db[i] } commR, _ := commcid.ReplicaCommitmentV1ToCID(commr) return storage.SectorCids{ Unsealed: d, Sealed: commR, }, nil } func (mgr *SectorMgr) SealCommit1(ctx context.Context, sid abi.SectorID, ticket abi.SealRandomness, seed abi.InteractiveSealRandomness, pieces []abi.PieceInfo, cids storage.SectorCids) (output storage.Commit1Out, err error) { mgr.lk.Lock() ss, ok := mgr.sectors[sid] mgr.lk.Unlock() if !ok { return nil, xerrors.Errorf("no such sector %d", sid) } ss.lk.Lock() defer ss.lk.Unlock() if ss.failed { return nil, xerrors.Errorf("[mock] cannot commit failed sector %d", sid) } if ss.state != statePreCommit { return nil, xerrors.Errorf("cannot commit sector that has not been precommitted") } opFinishWait(ctx) var out [32]byte for i := range out { out[i] = cids.Unsealed.Bytes()[i] + cids.Sealed.Bytes()[31-i] - ticket[i]*seed[i] ^ byte(sid.Number&0xff) } return out[:], nil } func (mgr *SectorMgr) SealCommit2(ctx context.Context, sid abi.SectorID, phase1Out storage.Commit1Out) (proof storage.Proof, err error) { var out [32]byte for i := range out { out[i] = phase1Out[i] ^ byte(sid.Number&0xff) } return out[:], nil } // Test Instrumentation Methods func (mgr *SectorMgr) MarkFailed(sid abi.SectorID, failed bool) error { mgr.lk.Lock() defer mgr.lk.Unlock() ss, ok := mgr.sectors[sid] if !ok { return fmt.Errorf("no such sector in storage") } ss.failed = failed return nil } func opFinishWait(ctx context.Context) { val, ok := ctx.Value("opfinish").(chan struct{}) if !ok { return } <-val } func AddOpFinish(ctx context.Context) (context.Context, func()) { done := make(chan struct{}) return context.WithValue(ctx, "opfinish", done), func() { // nolint close(done) } } func (mgr *SectorMgr) GenerateWinningPoSt(ctx context.Context, minerID abi.ActorID, sectorInfo []abi.SectorInfo, randomness abi.PoStRandomness) ([]abi.PoStProof, error) { return generateFakePoSt(sectorInfo, abi.RegisteredSealProof.RegisteredWinningPoStProof, randomness), nil } func (mgr *SectorMgr) GenerateWindowPoSt(ctx context.Context, minerID abi.ActorID, sectorInfo []abi.SectorInfo, randomness abi.PoStRandomness) ([]abi.PoStProof, []abi.SectorID, error) { si := make([]abi.SectorInfo, 0, len(sectorInfo)) var skipped []abi.SectorID for _, info := range sectorInfo { sid := abi.SectorID{ Miner: minerID, Number: info.SectorNumber, } _, found := mgr.sectors[sid] if found && !mgr.sectors[sid].failed { si = append(si, info) } else { skipped = append(skipped, sid) } } return generateFakePoSt(si, abi.RegisteredSealProof.RegisteredWindowPoStProof, randomness), skipped, nil } func generateFakePoStProof(sectorInfo []abi.SectorInfo, randomness abi.PoStRandomness) []byte { hasher := sha256.New() _, _ = hasher.Write(randomness) for _, info := range sectorInfo { err := info.MarshalCBOR(hasher) if err != nil { panic(err) } } return hasher.Sum(nil) } func generateFakePoSt(sectorInfo []abi.SectorInfo, rpt func(abi.RegisteredSealProof) (abi.RegisteredPoStProof, error), randomness abi.PoStRandomness) []abi.PoStProof { wp, err := rpt(sectorInfo[0].SealProof) if err != nil { panic(err) } return []abi.PoStProof{ { PoStProof: wp, ProofBytes: generateFakePoStProof(sectorInfo, randomness), }, } } func (mgr *SectorMgr) ReadPiece(ctx context.Context, w io.Writer, sectorID abi.SectorID, offset storiface.UnpaddedByteIndex, size abi.UnpaddedPieceSize, randomness abi.SealRandomness, c cid.Cid) error { if len(mgr.sectors[sectorID].pieces) > 1 || offset != 0 { panic("implme") } _, err := io.CopyN(w, bytes.NewReader(mgr.pieces[mgr.sectors[sectorID].pieces[0]]), int64(size)) return err } func (mgr *SectorMgr) StageFakeData(mid abi.ActorID) (abi.SectorID, []abi.PieceInfo, error) { usize := abi.PaddedPieceSize(mgr.sectorSize).Unpadded() sid, err := mgr.AcquireSectorNumber() if err != nil { return abi.SectorID{}, nil, err } buf := make([]byte, usize) _, _ = rand.Read(buf) // nolint:gosec id := abi.SectorID{ Miner: mid, Number: sid, } pi, err := mgr.AddPiece(context.TODO(), id, nil, usize, bytes.NewReader(buf)) if err != nil { return abi.SectorID{}, nil, err } return id, []abi.PieceInfo{pi}, nil } func (mgr *SectorMgr) FinalizeSector(context.Context, abi.SectorID, []storage.Range) error { return nil } func (mgr *SectorMgr) ReleaseUnsealed(ctx context.Context, sector abi.SectorID, safeToFree []storage.Range) error { return nil } func (mgr *SectorMgr) Remove(ctx context.Context, sector abi.SectorID) error { mgr.lk.Lock() defer mgr.lk.Unlock() if _, has := mgr.sectors[sector]; !has { return xerrors.Errorf("sector not found") } delete(mgr.sectors, sector) return nil } func (mgr *SectorMgr) CheckProvable(ctx context.Context, spt abi.RegisteredSealProof, ids []abi.SectorID) ([]abi.SectorID, error) { var bad []abi.SectorID for _, sid := range ids { _, found := mgr.sectors[sid] if !found || mgr.sectors[sid].failed { bad = append(bad, sid) } } return bad, nil } func (m mockVerif) VerifySeal(svi abi.SealVerifyInfo) (bool, error) { if len(svi.Proof) != 32 { // Real ones are longer, but this should be fine return false, nil } for i, b := range svi.Proof { if b != svi.UnsealedCID.Bytes()[i]+svi.SealedCID.Bytes()[31-i]-svi.InteractiveRandomness[i]*svi.Randomness[i] { return false, nil } } return true, nil } func (m mockVerif) VerifyWinningPoSt(ctx context.Context, info abi.WinningPoStVerifyInfo) (bool, error) { return true, nil } func (m mockVerif) VerifyWindowPoSt(ctx context.Context, info abi.WindowPoStVerifyInfo) (bool, error) { if len(info.Proofs) != 1 { return false, xerrors.Errorf("expected 1 proof entry") } proof := info.Proofs[0] expected := generateFakePoStProof(info.ChallengedSectors, info.Randomness) if !bytes.Equal(proof.ProofBytes, expected) { return false, xerrors.Errorf("bad proof") } return true, nil } func (m mockVerif) GenerateDataCommitment(pt abi.RegisteredSealProof, pieces []abi.PieceInfo) (cid.Cid, error) { return ffiwrapper.GenerateUnsealedCID(pt, pieces) } func (m mockVerif) GenerateWinningPoStSectorChallenge(ctx context.Context, proofType abi.RegisteredPoStProof, minerID abi.ActorID, randomness abi.PoStRandomness, eligibleSectorCount uint64) ([]uint64, error) { return []uint64{0}, nil } var MockVerifier = mockVerif{} var _ storage.Sealer = &SectorMgr{} var _ ffiwrapper.Verifier = MockVerifier