package api import ( "bytes" "context" "time" "github.com/google/uuid" "github.com/ipfs/go-cid" "github.com/libp2p/go-libp2p/core/peer" "github.com/filecoin-project/go-address" "github.com/filecoin-project/go-bitfield" datatransfer "github.com/filecoin-project/go-data-transfer" "github.com/filecoin-project/go-fil-markets/piecestore" "github.com/filecoin-project/go-fil-markets/retrievalmarket" "github.com/filecoin-project/go-fil-markets/storagemarket" "github.com/filecoin-project/go-jsonrpc/auth" "github.com/filecoin-project/go-state-types/abi" "github.com/filecoin-project/go-state-types/builtin/v8/market" "github.com/filecoin-project/go-state-types/builtin/v9/miner" abinetwork "github.com/filecoin-project/go-state-types/network" "github.com/filecoin-project/lotus/chain/actors/builtin" "github.com/filecoin-project/lotus/chain/types" "github.com/filecoin-project/lotus/storage/pipeline/sealiface" "github.com/filecoin-project/lotus/storage/sealer/fsutil" "github.com/filecoin-project/lotus/storage/sealer/storiface" ) // MODIFYING THE API INTERFACE // // When adding / changing methods in this file: // * Do the change here // * Adjust implementation in `node/impl/` // * Run `make gen` - this will: // * Generate proxy structs // * Generate mocks // * Generate markdown docs // * Generate openrpc blobs // StorageMiner is a low-level interface to the Filecoin network storage miner node type StorageMiner interface { Common Net ActorAddress(context.Context) (address.Address, error) //perm:read ActorSectorSize(context.Context, address.Address) (abi.SectorSize, error) //perm:read ActorAddressConfig(ctx context.Context) (AddressConfig, error) //perm:read // WithdrawBalance allows to withdraw balance from miner actor to owner address // Specify amount as "0" to withdraw full balance. This method returns a message CID // and does not wait for message execution ActorWithdrawBalance(ctx context.Context, amount abi.TokenAmount) (cid.Cid, error) //perm:admin // BeneficiaryWithdrawBalance allows the beneficiary of a miner to withdraw balance from miner actor // Specify amount as "0" to withdraw full balance. This method returns a message CID // and does not wait for message execution BeneficiaryWithdrawBalance(context.Context, abi.TokenAmount) (cid.Cid, error) //perm:admin MiningBase(context.Context) (*types.TipSet, error) //perm:read ComputeWindowPoSt(ctx context.Context, dlIdx uint64, tsk types.TipSetKey) ([]miner.SubmitWindowedPoStParams, error) //perm:admin ComputeDataCid(ctx context.Context, pieceSize abi.UnpaddedPieceSize, pieceData storiface.Data) (abi.PieceInfo, error) //perm:admin // Temp api for testing PledgeSector(context.Context) (abi.SectorID, error) //perm:write // Get the status of a given sector by ID SectorsStatus(ctx context.Context, sid abi.SectorNumber, showOnChainInfo bool) (SectorInfo, error) //perm:read // Add piece to an open sector. If no sectors with enough space are open, // either a new sector will be created, or this call will block until more // sectors can be created. SectorAddPieceToAny(ctx context.Context, size abi.UnpaddedPieceSize, r storiface.Data, d PieceDealInfo) (SectorOffset, error) //perm:admin SectorsUnsealPiece(ctx context.Context, sector storiface.SectorRef, offset storiface.UnpaddedByteIndex, size abi.UnpaddedPieceSize, randomness abi.SealRandomness, commd *cid.Cid) error //perm:admin // List all staged sectors SectorsList(context.Context) ([]abi.SectorNumber, error) //perm:read // Get summary info of sectors SectorsSummary(ctx context.Context) (map[SectorState]int, error) //perm:read // List sectors in particular states SectorsListInStates(context.Context, []SectorState) ([]abi.SectorNumber, error) //perm:read SectorsRefs(context.Context) (map[string][]SealedRef, error) //perm:read // SectorStartSealing can be called on sectors in Empty or WaitDeals states // to trigger sealing early SectorStartSealing(context.Context, abi.SectorNumber) error //perm:write // SectorSetSealDelay sets the time that a newly-created sector // waits for more deals before it starts sealing SectorSetSealDelay(context.Context, time.Duration) error //perm:write // SectorGetSealDelay gets the time that a newly-created sector // waits for more deals before it starts sealing SectorGetSealDelay(context.Context) (time.Duration, error) //perm:read // SectorSetExpectedSealDuration sets the expected time for a sector to seal SectorSetExpectedSealDuration(context.Context, time.Duration) error //perm:write // SectorGetExpectedSealDuration gets the expected time for a sector to seal SectorGetExpectedSealDuration(context.Context) (time.Duration, error) //perm:read SectorsUpdate(context.Context, abi.SectorNumber, SectorState) error //perm:admin // SectorRemove removes the sector from storage. It doesn't terminate it on-chain, which can // be done with SectorTerminate. Removing and not terminating live sectors will cause additional penalties. SectorRemove(context.Context, abi.SectorNumber) error //perm:admin SectorMarkForUpgrade(ctx context.Context, id abi.SectorNumber, snap bool) error //perm:admin // SectorTerminate terminates the sector on-chain (adding it to a termination batch first), then // automatically removes it from storage SectorTerminate(context.Context, abi.SectorNumber) error //perm:admin // SectorTerminateFlush immediately sends a terminate message with sectors batched for termination. // Returns null if message wasn't sent SectorTerminateFlush(ctx context.Context) (*cid.Cid, error) //perm:admin // SectorTerminatePending returns a list of pending sector terminations to be sent in the next batch message SectorTerminatePending(ctx context.Context) ([]abi.SectorID, error) //perm:admin // SectorPreCommitFlush immediately sends a PreCommit message with sectors batched for PreCommit. // Returns null if message wasn't sent SectorPreCommitFlush(ctx context.Context) ([]sealiface.PreCommitBatchRes, error) //perm:admin // SectorPreCommitPending returns a list of pending PreCommit sectors to be sent in the next batch message SectorPreCommitPending(ctx context.Context) ([]abi.SectorID, error) //perm:admin // SectorCommitFlush immediately sends a Commit message with sectors aggregated for Commit. // Returns null if message wasn't sent SectorCommitFlush(ctx context.Context) ([]sealiface.CommitBatchRes, error) //perm:admin // SectorCommitPending returns a list of pending Commit sectors to be sent in the next aggregate message SectorCommitPending(ctx context.Context) ([]abi.SectorID, error) //perm:admin SectorMatchPendingPiecesToOpenSectors(ctx context.Context) error //perm:admin // SectorAbortUpgrade can be called on sectors that are in the process of being upgraded to abort it SectorAbortUpgrade(context.Context, abi.SectorNumber) error //perm:admin // SectorNumAssignerMeta returns sector number assigner metadata - reserved/allocated SectorNumAssignerMeta(ctx context.Context) (NumAssignerMeta, error) //perm:read // SectorNumReservations returns a list of sector number reservations SectorNumReservations(ctx context.Context) (map[string]bitfield.BitField, error) //perm:read // SectorNumReserve creates a new sector number reservation. Will fail if any other reservation has colliding // numbers or name. Set force to true to override safety checks. // Valid characters for name: a-z, A-Z, 0-9, _, - SectorNumReserve(ctx context.Context, name string, sectors bitfield.BitField, force bool) error //perm:admin // SectorNumReserveCount creates a new sector number reservation for `count` sector numbers. // by default lotus will allocate lowest-available sector numbers to the reservation. // For restrictions on `name` see SectorNumReserve SectorNumReserveCount(ctx context.Context, name string, count uint64) (bitfield.BitField, error) //perm:admin // SectorNumFree drops a sector reservation SectorNumFree(ctx context.Context, name string) error //perm:admin // WorkerConnect tells the node to connect to workers RPC WorkerConnect(context.Context, string) error //perm:admin retry:true WorkerStats(context.Context) (map[uuid.UUID]storiface.WorkerStats, error) //perm:admin WorkerJobs(context.Context) (map[uuid.UUID][]storiface.WorkerJob, error) //perm:admin //storiface.WorkerReturn ReturnDataCid(ctx context.Context, callID storiface.CallID, pi abi.PieceInfo, err *storiface.CallError) error //perm:admin retry:true ReturnAddPiece(ctx context.Context, callID storiface.CallID, pi abi.PieceInfo, err *storiface.CallError) error //perm:admin retry:true ReturnSealPreCommit1(ctx context.Context, callID storiface.CallID, p1o storiface.PreCommit1Out, err *storiface.CallError) error //perm:admin retry:true ReturnSealPreCommit2(ctx context.Context, callID storiface.CallID, sealed storiface.SectorCids, err *storiface.CallError) error //perm:admin retry:true ReturnSealCommit1(ctx context.Context, callID storiface.CallID, out storiface.Commit1Out, err *storiface.CallError) error //perm:admin retry:true ReturnSealCommit2(ctx context.Context, callID storiface.CallID, proof storiface.Proof, err *storiface.CallError) error //perm:admin retry:true ReturnFinalizeSector(ctx context.Context, callID storiface.CallID, err *storiface.CallError) error //perm:admin retry:true ReturnReplicaUpdate(ctx context.Context, callID storiface.CallID, out storiface.ReplicaUpdateOut, err *storiface.CallError) error //perm:admin retry:true ReturnProveReplicaUpdate1(ctx context.Context, callID storiface.CallID, vanillaProofs storiface.ReplicaVanillaProofs, err *storiface.CallError) error //perm:admin retry:true ReturnProveReplicaUpdate2(ctx context.Context, callID storiface.CallID, proof storiface.ReplicaUpdateProof, err *storiface.CallError) error //perm:admin retry:true ReturnGenerateSectorKeyFromData(ctx context.Context, callID storiface.CallID, err *storiface.CallError) error //perm:admin retry:true ReturnFinalizeReplicaUpdate(ctx context.Context, callID storiface.CallID, err *storiface.CallError) error //perm:admin retry:true ReturnReleaseUnsealed(ctx context.Context, callID storiface.CallID, err *storiface.CallError) error //perm:admin retry:true ReturnMoveStorage(ctx context.Context, callID storiface.CallID, err *storiface.CallError) error //perm:admin retry:true ReturnUnsealPiece(ctx context.Context, callID storiface.CallID, err *storiface.CallError) error //perm:admin retry:true ReturnReadPiece(ctx context.Context, callID storiface.CallID, ok bool, err *storiface.CallError) error //perm:admin retry:true ReturnFetch(ctx context.Context, callID storiface.CallID, err *storiface.CallError) error //perm:admin retry:true // SealingSchedDiag dumps internal sealing scheduler state SealingSchedDiag(ctx context.Context, doSched bool) (interface{}, error) //perm:admin SealingAbort(ctx context.Context, call storiface.CallID) error //perm:admin //SealingSchedRemove removes a request from sealing pipeline SealingRemoveRequest(ctx context.Context, schedId uuid.UUID) error //perm:admin // paths.SectorIndex StorageAttach(context.Context, storiface.StorageInfo, fsutil.FsStat) error //perm:admin StorageDetach(ctx context.Context, id storiface.ID, url string) error //perm:admin StorageInfo(context.Context, storiface.ID) (storiface.StorageInfo, error) //perm:admin StorageReportHealth(context.Context, storiface.ID, storiface.HealthReport) error //perm:admin StorageDeclareSector(ctx context.Context, storageID storiface.ID, s abi.SectorID, ft storiface.SectorFileType, primary bool) error //perm:admin StorageDropSector(ctx context.Context, storageID storiface.ID, s abi.SectorID, ft storiface.SectorFileType) error //perm:admin // StorageFindSector returns list of paths where the specified sector files exist. // // If allowFetch is set, list of paths to which the sector can be fetched will also be returned. // - Paths which have sector files locally (don't require fetching) will be listed first. // - Paths which have sector files locally will not be filtered based on based on AllowTypes/DenyTypes. // - Paths which require fetching will be filtered based on AllowTypes/DenyTypes. If multiple // file types are specified, each type will be considered individually, and a union of all paths // which can accommodate each file type will be returned. StorageFindSector(ctx context.Context, sector abi.SectorID, ft storiface.SectorFileType, ssize abi.SectorSize, allowFetch bool) ([]storiface.SectorStorageInfo, error) //perm:admin // StorageBestAlloc returns list of paths where sector files of the specified type can be allocated, ordered by preference. // Paths with more weight and more % of free space are preferred. // Note: This method doesn't filter paths based on AllowTypes/DenyTypes. StorageBestAlloc(ctx context.Context, allocate storiface.SectorFileType, ssize abi.SectorSize, pathType storiface.PathType) ([]storiface.StorageInfo, error) //perm:admin StorageLock(ctx context.Context, sector abi.SectorID, read storiface.SectorFileType, write storiface.SectorFileType) error //perm:admin StorageTryLock(ctx context.Context, sector abi.SectorID, read storiface.SectorFileType, write storiface.SectorFileType) (bool, error) //perm:admin StorageList(ctx context.Context) (map[storiface.ID][]storiface.Decl, error) //perm:admin StorageGetLocks(ctx context.Context) (storiface.SectorLocks, error) //perm:admin StorageLocal(ctx context.Context) (map[storiface.ID]string, error) //perm:admin StorageStat(ctx context.Context, id storiface.ID) (fsutil.FsStat, error) //perm:admin StorageAuthVerify(ctx context.Context, token string) ([]auth.Permission, error) //perm:read StorageAddLocal(ctx context.Context, path string) error //perm:admin StorageDetachLocal(ctx context.Context, path string) error //perm:admin StorageRedeclareLocal(ctx context.Context, id *storiface.ID, dropMissing bool) error //perm:admin MarketImportDealData(ctx context.Context, propcid cid.Cid, path string) error //perm:write MarketListDeals(ctx context.Context) ([]*MarketDeal, error) //perm:read MarketListRetrievalDeals(ctx context.Context) ([]retrievalmarket.ProviderDealState, error) //perm:read MarketGetDealUpdates(ctx context.Context) (<-chan storagemarket.MinerDeal, error) //perm:read MarketListIncompleteDeals(ctx context.Context) ([]storagemarket.MinerDeal, error) //perm:read MarketSetAsk(ctx context.Context, price types.BigInt, verifiedPrice types.BigInt, duration abi.ChainEpoch, minPieceSize abi.PaddedPieceSize, maxPieceSize abi.PaddedPieceSize) error //perm:admin MarketGetAsk(ctx context.Context) (*storagemarket.SignedStorageAsk, error) //perm:read MarketSetRetrievalAsk(ctx context.Context, rask *retrievalmarket.Ask) error //perm:admin MarketGetRetrievalAsk(ctx context.Context) (*retrievalmarket.Ask, error) //perm:read MarketListDataTransfers(ctx context.Context) ([]DataTransferChannel, error) //perm:write MarketDataTransferUpdates(ctx context.Context) (<-chan DataTransferChannel, error) //perm:write // MarketDataTransferDiagnostics generates debugging information about current data transfers over graphsync MarketDataTransferDiagnostics(ctx context.Context, p peer.ID) (*TransferDiagnostics, error) //perm:write // MarketRestartDataTransfer attempts to restart a data transfer with the given transfer ID and other peer MarketRestartDataTransfer(ctx context.Context, transferID datatransfer.TransferID, otherPeer peer.ID, isInitiator bool) error //perm:write // MarketCancelDataTransfer cancels a data transfer with the given transfer ID and other peer MarketCancelDataTransfer(ctx context.Context, transferID datatransfer.TransferID, otherPeer peer.ID, isInitiator bool) error //perm:write MarketPendingDeals(ctx context.Context) (PendingDealInfo, error) //perm:write MarketPublishPendingDeals(ctx context.Context) error //perm:admin MarketRetryPublishDeal(ctx context.Context, propcid cid.Cid) error //perm:admin // DagstoreListShards returns information about all shards known to the // DAG store. Only available on nodes running the markets subsystem. DagstoreListShards(ctx context.Context) ([]DagstoreShardInfo, error) //perm:read // DagstoreInitializeShard initializes an uninitialized shard. // // Initialization consists of fetching the shard's data (deal payload) from // the storage subsystem, generating an index, and persisting the index // to facilitate later retrievals, and/or to publish to external sources. // // This operation is intended to complement the initial migration. The // migration registers a shard for every unique piece CID, with lazy // initialization. Thus, shards are not initialized immediately to avoid // IO activity competing with proving. Instead, shard are initialized // when first accessed. This method forces the initialization of a shard by // accessing it and immediately releasing it. This is useful to warm up the // cache to facilitate subsequent retrievals, and to generate the indexes // to publish them externally. // // This operation fails if the shard is not in ShardStateNew state. // It blocks until initialization finishes. DagstoreInitializeShard(ctx context.Context, key string) error //perm:write // DagstoreRecoverShard attempts to recover a failed shard. // // This operation fails if the shard is not in ShardStateErrored state. // It blocks until recovery finishes. If recovery failed, it returns the // error. DagstoreRecoverShard(ctx context.Context, key string) error //perm:write // DagstoreInitializeAll initializes all uninitialized shards in bulk, // according to the policy passed in the parameters. // // It is recommended to set a maximum concurrency to avoid extreme // IO pressure if the storage subsystem has a large amount of deals. // // It returns a stream of events to report progress. DagstoreInitializeAll(ctx context.Context, params DagstoreInitializeAllParams) (<-chan DagstoreInitializeAllEvent, error) //perm:write // DagstoreGC runs garbage collection on the DAG store. DagstoreGC(ctx context.Context) ([]DagstoreShardResult, error) //perm:admin // DagstoreRegisterShard registers a shard manually with dagstore with given pieceCID DagstoreRegisterShard(ctx context.Context, key string) error //perm:admin // IndexerAnnounceDeal informs indexer nodes that a new deal was received, // so they can download its index IndexerAnnounceDeal(ctx context.Context, proposalCid cid.Cid) error //perm:admin // IndexerAnnounceAllDeals informs the indexer nodes aboutall active deals. IndexerAnnounceAllDeals(ctx context.Context) error //perm:admin // DagstoreLookupPieces returns information about shards that contain the given CID. DagstoreLookupPieces(ctx context.Context, cid cid.Cid) ([]DagstoreShardInfo, error) //perm:admin // RuntimeSubsystems returns the subsystems that are enabled // in this instance. RuntimeSubsystems(ctx context.Context) (MinerSubsystems, error) //perm:read DealsImportData(ctx context.Context, dealPropCid cid.Cid, file string) error //perm:admin DealsList(ctx context.Context) ([]*MarketDeal, error) //perm:admin DealsConsiderOnlineStorageDeals(context.Context) (bool, error) //perm:admin DealsSetConsiderOnlineStorageDeals(context.Context, bool) error //perm:admin DealsConsiderOnlineRetrievalDeals(context.Context) (bool, error) //perm:admin DealsSetConsiderOnlineRetrievalDeals(context.Context, bool) error //perm:admin DealsPieceCidBlocklist(context.Context) ([]cid.Cid, error) //perm:admin DealsSetPieceCidBlocklist(context.Context, []cid.Cid) error //perm:admin DealsConsiderOfflineStorageDeals(context.Context) (bool, error) //perm:admin DealsSetConsiderOfflineStorageDeals(context.Context, bool) error //perm:admin DealsConsiderOfflineRetrievalDeals(context.Context) (bool, error) //perm:admin DealsSetConsiderOfflineRetrievalDeals(context.Context, bool) error //perm:admin DealsConsiderVerifiedStorageDeals(context.Context) (bool, error) //perm:admin DealsSetConsiderVerifiedStorageDeals(context.Context, bool) error //perm:admin DealsConsiderUnverifiedStorageDeals(context.Context) (bool, error) //perm:admin DealsSetConsiderUnverifiedStorageDeals(context.Context, bool) error //perm:admin PiecesListPieces(ctx context.Context) ([]cid.Cid, error) //perm:read PiecesListCidInfos(ctx context.Context) ([]cid.Cid, error) //perm:read PiecesGetPieceInfo(ctx context.Context, pieceCid cid.Cid) (*piecestore.PieceInfo, error) //perm:read PiecesGetCIDInfo(ctx context.Context, payloadCid cid.Cid) (*piecestore.CIDInfo, error) //perm:read // CreateBackup creates node backup onder the specified file name. The // method requires that the lotus-miner is running with the // LOTUS_BACKUP_BASE_PATH environment variable set to some path, and that // the path specified when calling CreateBackup is within the base path CreateBackup(ctx context.Context, fpath string) error //perm:admin CheckProvable(ctx context.Context, pp abi.RegisteredPoStProof, sectors []storiface.SectorRef, expensive bool) (map[abi.SectorNumber]string, error) //perm:admin ComputeProof(ctx context.Context, ssi []builtin.ExtendedSectorInfo, rand abi.PoStRandomness, poStEpoch abi.ChainEpoch, nv abinetwork.Version) ([]builtin.PoStProof, error) //perm:read // RecoverFault can be used to declare recoveries manually. It sends messages // to the miner actor with details of recovered sectors and returns the CID of messages. It honors the // maxPartitionsPerRecoveryMessage from the config RecoverFault(ctx context.Context, sectors []abi.SectorNumber) ([]cid.Cid, error) //perm:admin } var _ storiface.WorkerReturn = *new(StorageMiner) type SealRes struct { Err string GoErr error `json:"-"` Proof []byte } type SectorLog struct { Kind string Timestamp uint64 Trace string Message string } type SectorPiece struct { Piece abi.PieceInfo DealInfo *PieceDealInfo // nil for pieces which do not appear in deals (e.g. filler pieces) } type SectorInfo struct { SectorID abi.SectorNumber State SectorState CommD *cid.Cid CommR *cid.Cid Proof []byte Deals []abi.DealID Pieces []SectorPiece Ticket SealTicket Seed SealSeed PreCommitMsg *cid.Cid CommitMsg *cid.Cid Retries uint64 ToUpgrade bool ReplicaUpdateMessage *cid.Cid LastErr string Log []SectorLog // On Chain Info SealProof abi.RegisteredSealProof // The seal proof type implies the PoSt proof/s Activation abi.ChainEpoch // Epoch during which the sector proof was accepted Expiration abi.ChainEpoch // Epoch during which the sector expires DealWeight abi.DealWeight // Integral of active deals over sector lifetime VerifiedDealWeight abi.DealWeight // Integral of active verified deals over sector lifetime InitialPledge abi.TokenAmount // Pledge collected to commit this sector // Expiration Info OnTime abi.ChainEpoch // non-zero if sector is faulty, epoch at which it will be permanently // removed if it doesn't recover Early abi.ChainEpoch } type SealedRef struct { SectorID abi.SectorNumber Offset abi.PaddedPieceSize Size abi.UnpaddedPieceSize } type SealedRefs struct { Refs []SealedRef } type SealTicket struct { Value abi.SealRandomness Epoch abi.ChainEpoch } type SealSeed struct { Value abi.InteractiveSealRandomness Epoch abi.ChainEpoch } func (st *SealTicket) Equals(ost *SealTicket) bool { return bytes.Equal(st.Value, ost.Value) && st.Epoch == ost.Epoch } func (st *SealSeed) Equals(ost *SealSeed) bool { return bytes.Equal(st.Value, ost.Value) && st.Epoch == ost.Epoch } type SectorState string type AddrUse int const ( PreCommitAddr AddrUse = iota CommitAddr DealPublishAddr PoStAddr TerminateSectorsAddr ) type AddressConfig struct { PreCommitControl []address.Address CommitControl []address.Address TerminateControl []address.Address DealPublishControl []address.Address DisableOwnerFallback bool DisableWorkerFallback bool } // PendingDealInfo has info about pending deals and when they are due to be // published type PendingDealInfo struct { Deals []market.ClientDealProposal PublishPeriodStart time.Time PublishPeriod time.Duration } type SectorOffset struct { Sector abi.SectorNumber Offset abi.PaddedPieceSize } // DealInfo is a tuple of deal identity and its schedule type PieceDealInfo struct { PublishCid *cid.Cid DealID abi.DealID DealProposal *market.DealProposal DealSchedule DealSchedule KeepUnsealed bool } // DealSchedule communicates the time interval of a storage deal. The deal must // appear in a sealed (proven) sector no later than StartEpoch, otherwise it // is invalid. type DealSchedule struct { StartEpoch abi.ChainEpoch EndEpoch abi.ChainEpoch } // DagstoreShardInfo is the serialized form of dagstore.DagstoreShardInfo that // we expose through JSON-RPC to avoid clients having to depend on the // dagstore lib. type DagstoreShardInfo struct { Key string State string Error string } // DagstoreShardResult enumerates results per shard. type DagstoreShardResult struct { Key string Success bool Error string } type DagstoreInitializeAllParams struct { MaxConcurrency int IncludeSealed bool } // DagstoreInitializeAllEvent represents an initialization event. type DagstoreInitializeAllEvent struct { Key string Event string // "start", "end" Success bool Error string Total int Current int } type NumAssignerMeta struct { Reserved bitfield.BitField Allocated bitfield.BitField // ChainAllocated+Reserved+Allocated InUse bitfield.BitField Next abi.SectorNumber }