first pass at integrating chain-validation

chain/validation/applier.go

@@ -0,0 +1,64 @@
+package validation
+
+import (
+	"context"
+
+	vchain "github.com/filecoin-project/chain-validation/pkg/chain"
+	vstate "github.com/filecoin-project/chain-validation/pkg/state"
+
+	"github.com/filecoin-project/lotus/chain/address"
+	"github.com/filecoin-project/lotus/chain/types"
+	"github.com/filecoin-project/lotus/chain/vm"
+)
+
+// Applier applies messages to state trees and storage.
+type Applier struct {
+}
+
+var _ vchain.Applier = &Applier{}
+
+func NewApplier() *Applier {
+	return &Applier{}
+}
+
+func (a *Applier) ApplyMessage(eCtx *vchain.ExecutionContext, state vstate.Wrapper, message interface{}) (vchain.MessageReceipt, error) {
+	ctx := context.TODO()
+	st := state.(*StateWrapper)
+
+	base := st.Cid()
+	randSrc := &vmRand{eCtx}
+	minerAddr, err := address.NewFromBytes([]byte(eCtx.MinerOwner))
+	if err != nil {
+		return vchain.MessageReceipt{}, err
+	}
+	lotusVM, err := vm.NewVM(base, eCtx.Epoch, randSrc, minerAddr, st.bs)
+	if err != nil {
+		return vchain.MessageReceipt{}, err
+	}
+
+	ret, err := lotusVM.ApplyMessage(ctx, message.(*types.Message))
+	if err != nil {
+		return vchain.MessageReceipt{}, err
+	}
+
+	st.stateRoot, err = lotusVM.Flush(ctx)
+	if err != nil {
+		return vchain.MessageReceipt{}, err
+	}
+
+	mr := vchain.MessageReceipt{
+		ExitCode:    ret.ExitCode,
+		ReturnValue: ret.Return,
+		GasUsed: vstate.GasUnit(ret.GasUsed.Uint64()),
+	}
+
+	return mr, nil
+}
+
+type vmRand struct {
+	eCtx *vchain.ExecutionContext
+}
+
+func (*vmRand) GetRandomness(ctx context.Context, h int64) ([]byte, error) {
+	panic("implement me")
+}

chain/validation/factories.go

@@ -0,0 +1,27 @@
+package validation
+
+import (
+	vchain "github.com/filecoin-project/chain-validation/pkg/chain"
+	vstate "github.com/filecoin-project/chain-validation/pkg/state"
+	"github.com/filecoin-project/chain-validation/pkg/suites"
+)
+
+type factories struct {
+	*Applier
+}
+
+var _ suites.Factories = &factories{}
+
+func NewFactories() *factories {
+	applier := NewApplier()
+	return &factories{applier}
+}
+
+func (f *factories) NewState() vstate.Wrapper {
+	return NewState()
+}
+
+func (f *factories) NewMessageFactory(wrapper vstate.Wrapper) vchain.MessageFactory {
+	signer := wrapper.(*StateWrapper).Signer()
+	return NewMessageFactory(signer)
+}

chain/validation/lotus_test.go

@@ -0,0 +1,136 @@
+package validation
+
+import (
+	"encoding/binary"
+	"math/big"
+	"testing"
+
+	"github.com/libp2p/go-libp2p-core/peer"
+	mh "github.com/multiformats/go-multihash"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+
+	"github.com/filecoin-project/chain-validation/pkg/state"
+	"github.com/filecoin-project/chain-validation/pkg/suites"
+
+	"github.com/filecoin-project/lotus/chain/actors"
+	"github.com/filecoin-project/lotus/chain/address"
+)
+
+func TestStorageMinerValidation(t *testing.T) {
+	factory := NewFactories()
+	suites.CreateStorageMinerAndUpdatePeerIDTest(t, factory)
+
+}
+
+func TestValueTransfer(t *testing.T) {
+	factory := NewFactories()
+	suites.AccountValueTransferSuccess(t, factory, 126)
+	suites.AccountValueTransferZeroFunds(t, factory, 112)
+	suites.AccountValueTransferOverBalanceNonZero(t, factory, 0)
+	suites.AccountValueTransferOverBalanceZero(t, factory, 0)
+	suites.AccountValueTransferToSelf(t, factory, 0)
+	suites.AccountValueTransferFromKnownToUnknownAccount(t, factory, 0)
+	suites.AccountValueTransferFromUnknownToKnownAccount(t, factory, 0)
+	suites.AccountValueTransferFromUnknownToUnknownAccount(t, factory, 0)
+}
+
+//
+// some helpers tests to verify chain-validation can encode parameters to the CBOR lotus uses
+//
+
+func TestCBOREncodingCreateStorageMiner(t *testing.T) {
+	oAddr, err := state.NewActorAddress([]byte("foobar"))
+	require.NoError(t, err)
+	ownerAddr := newTestAddressWrapper(oAddr)
+
+	wAddr, err := state.NewActorAddress([]byte("barfoo"))
+	require.NoError(t, err)
+	workerAddr := newTestAddressWrapper(wAddr)
+
+	lotusPeer := RequireIntPeerID(t, 1)
+	bpid, err := lotusPeer.MarshalBinary()
+	require.NoError(t, err)
+	peerID := state.PeerID(bpid)
+
+	lotusSectorSize := uint64(1)
+	sectorSize := state.BytesAmount(big.NewInt(int64(lotusSectorSize)))
+
+	lotusParams := actors.StorageMinerConstructorParams{
+		Owner:      ownerAddr.lotusAddr,
+		Worker:     workerAddr.lotusAddr,
+		SectorSize: lotusSectorSize,
+		PeerID:     lotusPeer,
+	}
+	lotusBytes, err := actors.SerializeParams(&lotusParams)
+	require.NoError(t, err)
+
+	specParams := []interface{}{ownerAddr.testAddr, workerAddr.testAddr, sectorSize, peerID}
+	specBytes, err := state.EncodeValues(specParams...)
+	require.NoError(t, err)
+
+	assert.Equal(t, specBytes, lotusBytes)
+
+}
+
+func TestCBOREncodingPeerID(t *testing.T) {
+	lotusPeer := RequireIntPeerID(t, 1)
+
+	bpid, err := lotusPeer.MarshalBinary()
+	require.NoError(t, err)
+	peerID := state.PeerID(bpid)
+
+	lotusParams := actors.UpdatePeerIDParams{
+		PeerID: lotusPeer,
+	}
+	lotusBytes, err := actors.SerializeParams(&lotusParams)
+	require.NoError(t, err)
+
+	specParams := []interface{}{peerID}
+	specBytes, err := state.EncodeValues(specParams...)
+	require.NoError(t, err)
+
+	assert.Equal(t, specBytes, lotusBytes)
+}
+
+func TestCBOREncodingUint64(t *testing.T) {
+	lotusSectorSize := uint64(1)
+	sectorSize := state.BytesAmount(big.NewInt(int64(lotusSectorSize)))
+
+	lotusParams := actors.MultiSigChangeReqParams{Req: lotusSectorSize}
+	lotusBytes, aerr := actors.SerializeParams(&lotusParams)
+	require.NoError(t, aerr)
+
+	specParams := []interface{}{sectorSize}
+	specBytes, err := state.EncodeValues(specParams...)
+	require.NoError(t, err)
+
+	assert.Equal(t, specBytes, lotusBytes)
+}
+
+type testAddressWrapper struct {
+	lotusAddr address.Address
+	testAddr  state.Address
+}
+
+func newTestAddressWrapper(addr state.Address) *testAddressWrapper {
+	la, err := address.NewFromBytes([]byte(addr))
+	if err != nil {
+		panic(err)
+	}
+	return &testAddressWrapper{
+		lotusAddr: la,
+		testAddr:  addr,
+	}
+}
+
+// RequireIntPeerID takes in an integer and creates a unique peer id for it.
+func RequireIntPeerID(t testing.TB, i int64) peer.ID {
+	buf := make([]byte, 16)
+	n := binary.PutVarint(buf, i)
+	h, err := mh.Sum(buf[:n], mh.ID, -1)
+	require.NoError(t, err)
+	pid, err := peer.IDFromBytes(h)
+	require.NoError(t, err)
+	return pid
+}

chain/validation/message.go

@@ -0,0 +1,84 @@
+package validation
+
+import (
+	"context"
+
+	"github.com/pkg/errors"
+
+	"github.com/filecoin-project/lotus/chain/actors"
+	"github.com/filecoin-project/lotus/chain/address"
+	"github.com/filecoin-project/lotus/chain/types"
+
+	"github.com/filecoin-project/chain-validation/pkg/chain"
+	"github.com/filecoin-project/chain-validation/pkg/state"
+)
+
+type Signer interface {
+	Sign(ctx context.Context, addr address.Address, msg []byte) (*types.Signature, error)
+}
+
+type MessageFactory struct {
+	signer Signer
+}
+
+var _ chain.MessageFactory = &MessageFactory{}
+
+func NewMessageFactory(signer Signer) *MessageFactory {
+	return &MessageFactory{signer}
+}
+
+func (mf *MessageFactory) MakeMessage(from, to state.Address, method chain.MethodID, nonce uint64, value, gasPrice state.AttoFIL, gasLimit state.GasUnit, params ...interface{}) (interface{}, error) {
+	fromDec, err := address.NewFromBytes([]byte(from))
+	if err != nil {
+		return nil, err
+	}
+	toDec, err := address.NewFromBytes([]byte(to))
+	if err != nil {
+		return nil, err
+	}
+	valueDec := types.BigInt{value}
+	paramsDec, err := state.EncodeValues(params...)
+	if err != nil {
+		return nil, err
+	}
+
+	if int(method) >= len(methods) {
+		return nil, errors.Errorf("No method name for method %v", method)
+	}
+	methodId := methods[method]
+	msg := &types.Message{
+		toDec,
+		fromDec,
+		nonce,
+		valueDec,
+		types.BigInt{gasPrice},
+		types.NewInt(uint64(gasLimit)),
+		methodId,
+		paramsDec,
+	}
+
+	return msg, nil
+}
+
+func (mf *MessageFactory) FromSingletonAddress(addr state.SingletonActorID) (state.Address) {
+	return fromSingletonAddress(addr)
+}
+
+// Maps method enumeration values to method names.
+// This will change to a mapping to method ids when method dispatch is updated to use integers.
+var methods = []uint64{
+	chain.NoMethod: 0,
+	chain.InitExec: actors.IAMethods.Exec,
+
+	chain.StoragePowerConstructor: actors.SPAMethods.Constructor,
+	chain.StoragePowerCreateStorageMiner: actors.SPAMethods.CreateStorageMiner,
+	chain.StoragePowerUpdatePower: actors.SPAMethods.UpdateStorage,
+
+	chain.StorageMinerUpdatePeerID: actors.MAMethods.UpdatePeerID,
+	chain.StorageMinerGetOwner: actors.MAMethods.GetOwner,
+	chain.StorageMinerGetPower: actors.MAMethods.GetPower,
+	chain.StorageMinerGetWorkerAddr: actors.MAMethods.GetWorkerAddr,
+	chain.StorageMinerGetPeerID: actors.MAMethods.GetPeerID,
+	chain.StorageMinerGetSectorSize: actors.MAMethods.GetSectorSize,
+	// More to follow...
+}

chain/validation/message_test.go

@@ -0,0 +1,41 @@
+package validation
+
+import (
+	"math/big"
+	"testing"
+
+	"github.com/filecoin-project/chain-validation/pkg/chain"
+	"github.com/filecoin-project/chain-validation/pkg/state"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+
+	"github.com/filecoin-project/lotus/chain/actors"
+	"github.com/filecoin-project/lotus/chain/types"
+	"github.com/filecoin-project/lotus/chain/wallet"
+)
+
+func TestMessageFactory(t *testing.T) {
+	ks := wallet.NewMemKeyStore()
+	wallet, err := wallet.NewWallet(ks)
+	require.NoError(t, err)
+	factory := NewMessageFactory(wallet)
+
+	gasPrice := big.NewInt(1)
+	gasLimit := state.GasUnit(1000)
+	p := chain.NewMessageProducer(factory, gasLimit, gasPrice)
+
+	sender, err := wallet.GenerateKey(types.KTSecp256k1)
+	require.NoError(t, err)
+
+	bfAddr := factory.FromSingletonAddress(state.BurntFundsAddress)
+	m, err := p.Transfer(state.Address(sender.Bytes()), bfAddr,0, 1)
+	require.NoError(t, err)
+
+	messages := p.Messages()
+	assert.Equal(t, 1, len(messages))
+	msg := m.(*types.Message)
+	assert.Equal(t, m, msg)
+	assert.Equal(t, sender, msg.From)
+	assert.Equal(t, actors.BurntFundsAddress, msg.To)
+	assert.Equal(t, types.NewInt(1), msg.Value)
+}

chain/validation/state.go

@@ -0,0 +1,310 @@
+package validation
+
+import (
+	"context"
+	"fmt"
+	"math/rand"
+
+	"github.com/pkg/errors"
+
+	"github.com/filecoin-project/lotus/chain/actors"
+	"github.com/filecoin-project/lotus/chain/gen"
+	"github.com/filecoin-project/lotus/chain/vm"
+
+	"github.com/ipfs/go-cid"
+	"github.com/ipfs/go-datastore"
+	"github.com/ipfs/go-hamt-ipld"
+	blockstore "github.com/ipfs/go-ipfs-blockstore"
+
+	"github.com/filecoin-project/lotus/chain/address"
+	"github.com/filecoin-project/lotus/chain/state"
+	"github.com/filecoin-project/lotus/chain/types"
+	"github.com/filecoin-project/lotus/chain/wallet"
+	"github.com/filecoin-project/lotus/lib/crypto"
+
+	vstate "github.com/filecoin-project/chain-validation/pkg/state"
+)
+
+type StateWrapper struct {
+	// The blockstore underlying the state tree and storage.
+	bs blockstore.Blockstore
+	// HAMT-CBOR store on top of the blockstore.
+	cst *hamt.CborIpldStore
+	// A store for encryption keys.
+	keys *keyStore
+
+	// CID of the root of the state tree.
+	stateRoot cid.Cid
+	// The root node of the state tree, essentially a cache of LoadStateTree(cst, stateRoot)
+	//tree *state.StateTree
+	// A look-through storage implementation.
+	storage *directStorage
+}
+
+var _ vstate.Wrapper = &StateWrapper{}
+
+func NewState() *StateWrapper {
+	bs := blockstore.NewBlockstore(datastore.NewMapDatastore())
+	cst := hamt.CSTFromBstore(bs)
+	// Put EmptyObjectCid value in the store. When an actor is initially created its Head is set to this value.
+	_, err := cst.Put(context.TODO(), map[string]string{})
+	if err != nil {
+		panic(err)
+	}
+
+	treeImpl, err := state.NewStateTree(cst)
+	if err != nil {
+		panic(err) // Never returns error, the error return should be removed.
+	}
+	root, err := treeImpl.Flush()
+	if err != nil {
+		panic(err)
+	}
+	storageImpl := &directStorage{cst}
+	return &StateWrapper{bs, cst, newKeyStore(), root, storageImpl}
+}
+
+func (s *StateWrapper) Cid() cid.Cid {
+	return s.stateRoot
+}
+
+func (s *StateWrapper) Actor(addr vstate.Address) (vstate.Actor, error) {
+	vaddr, err := address.NewFromBytes([]byte(addr))
+	if err != nil {
+		return nil, err
+	}
+	tree, err := state.LoadStateTree(s.cst, s.stateRoot)
+	if err != nil {
+		return nil, err
+	}
+	fcActor, err := tree.GetActor(vaddr)
+	if err != nil {
+		return nil, err
+	}
+	return &actorWrapper{*fcActor}, nil
+}
+
+func (s *StateWrapper) Storage(addr vstate.Address) (vstate.Storage, error) {
+	return s.storage, nil
+}
+
+func (s *StateWrapper) NewAccountAddress() (vstate.Address, error) {
+	return s.keys.NewAddress()
+}
+
+func (s *StateWrapper) SetActor(addr vstate.Address, code vstate.ActorCodeID, balance vstate.AttoFIL) (vstate.Actor, vstate.Storage, error) {
+	addrInt, err := address.NewFromBytes([]byte(addr))
+	if err != nil {
+		return nil, nil, err
+	}
+	tree, err := state.LoadStateTree(s.cst, s.stateRoot)
+	if err != nil {
+		return nil, nil, err
+	}
+	actr := &actorWrapper{types.Actor{
+		Code:    fromActorCode(code),
+		Balance: types.BigInt{balance},
+		Head:    vm.EmptyObjectCid,
+	}}
+	// The ID-based address is dropped here, but should be reported back to the caller.
+	_, err = tree.RegisterNewAddress(addrInt, &actr.Actor)
+	if err != nil {
+		return nil, nil, errors.Wrapf(err, "register new address for actor")
+	}
+	return actr, s.storage, s.flush(tree)
+}
+
+func (s *StateWrapper) SetSingletonActor(addr vstate.SingletonActorID, balance vstate.AttoFIL) (vstate.Actor, vstate.Storage, error){
+	vaddr := fromSingletonAddress(addr)
+	tree, err := state.LoadStateTree(s.cst, s.stateRoot)
+	if err != nil {
+		return nil, nil, err
+	}
+	lotusAddr, err := address.NewFromBytes([]byte(vaddr))
+	if err != nil {
+		return nil, nil, err
+	}
+	switch lotusAddr {
+	case actors.InitAddress:
+		initact, err := gen.SetupInitActor(s.bs, nil)
+		if err != nil {
+			return nil, nil, err
+		}
+		if err := tree.SetActor(actors.InitAddress, initact); err != nil {
+			return nil, nil, errors.Wrapf(err, "set init actor")
+		}
+
+		return &actorWrapper{*initact}, s.storage, s.flush(tree)
+	case actors.StorageMarketAddress:
+		smact, err := gen.SetupStorageMarketActor(s.bs)
+		if err != nil {
+			return nil, nil, err
+		}
+		if err := tree.SetActor(actors.StorageMarketAddress, smact); err != nil {
+			return nil, nil, errors.Wrapf(err, "set network storage market actor")
+		}
+		return &actorWrapper{*smact}, s.storage, s.flush(tree)
+	case actors.StoragePowerAddress:
+		spact, err := gen.SetupStoragePowerActor(s.bs)
+		if err != nil {
+			return nil, nil, err
+		}
+		if err := tree.SetActor(actors.StoragePowerAddress, spact); err != nil {
+			return nil, nil, errors.Wrapf(err, "set network storage market actor")
+		}
+		return &actorWrapper{*spact}, s.storage, s.flush(tree)
+	case actors.NetworkAddress:
+		ntwkact := &types.Actor{
+			Code:    actors.AccountCodeCid,
+			Balance: types.BigInt{balance},
+			Head:    vm.EmptyObjectCid,
+		}
+		if err := tree.SetActor(actors.NetworkAddress, ntwkact); err != nil {
+			return nil, nil, errors.Wrapf(err, "set network actor")
+		}
+		return &actorWrapper{*ntwkact}, s.storage, s.flush(tree)
+	case actors.BurntFundsAddress:
+		ntwkact := &types.Actor{
+			Code:    actors.AccountCodeCid,
+			Balance: types.BigInt{balance},
+			Head:    vm.EmptyObjectCid,
+		}
+		if err := tree.SetActor(actors.BurntFundsAddress, ntwkact); err != nil {
+			return nil, nil, errors.Wrapf(err, "set network actor")
+		}
+		return &actorWrapper{*ntwkact}, s.storage, s.flush(tree)
+	default:
+		return nil, nil, errors.Errorf("%v is not a singleton actor address", addr)
+	}
+}
+
+func (s *StateWrapper) Signer() *keyStore {
+	return s.keys
+}
+
+// Flushes a state tree to storage and sets this state's root to that tree's root CID.
+func (s *StateWrapper) flush(tree *state.StateTree) (err error) {
+	s.stateRoot, err = tree.Flush()
+	return
+}
+
+//
+// Key store
+//
+type keyStore struct {
+	// Private keys by address
+	keys map[address.Address]types.KeyInfo
+	// Seed for deterministic key generation.
+	seed int64
+}
+
+func newKeyStore() *keyStore {
+	return &keyStore{
+		keys: make(map[address.Address]types.KeyInfo),
+		seed: 0,
+	}
+}
+
+func (s *keyStore) NewAddress() (vstate.Address, error) {
+	randSrc := rand.New(rand.NewSource(s.seed))
+	prv, err := crypto.GenerateKeyFromSeed(randSrc)
+	if err != nil {
+		return "", err
+	}
+
+	ki := types.KeyInfo{
+		PrivateKey: prv,
+		Type:       types.KTSecp256k1,
+	}
+	key, err := wallet.NewKey(ki)
+	if err != nil {
+		return "", err
+	}
+	s.keys[key.Address] = ki
+	s.seed++
+	return vstate.Address(key.Address.Bytes()), nil
+}
+
+func (s *keyStore) Sign(ctx context.Context, addr address.Address, data []byte) (*types.Signature, error) {
+	ki, ok := s.keys[addr]
+	if !ok {
+		return &types.Signature{}, fmt.Errorf("unknown address %v", addr)
+	}
+	digest, err := crypto.Sign(ki.PrivateKey, data)
+	if err != nil {
+		return &types.Signature{}, err
+	}
+	return &types.Signature{
+		Type: types.KTSecp256k1,
+		Data: digest,
+	}, nil
+}
+
+//
+// Actor Wrapper
+//
+
+type actorWrapper struct {
+	types.Actor
+}
+
+func (a *actorWrapper) Code() cid.Cid {
+	return a.Actor.Code
+}
+
+func (a *actorWrapper) Head() cid.Cid {
+	return a.Actor.Head
+}
+
+func (a *actorWrapper) Nonce() uint64 {
+	return a.Actor.Nonce
+}
+
+func (a *actorWrapper) Balance() vstate.AttoFIL {
+	return a.Actor.Balance.Int
+
+}
+
+//
+// Storage
+//
+
+type directStorage struct {
+	cst *hamt.CborIpldStore
+}
+
+func (d *directStorage) Get(cid cid.Cid) ([]byte, error) {
+	panic("implement me")
+}
+
+func fromActorCode(code vstate.ActorCodeID) cid.Cid {
+	switch code {
+	case vstate.AccountActorCodeCid:
+		return actors.AccountCodeCid
+	case vstate.StorageMinerCodeCid:
+		return actors.StorageMinerCodeCid
+	case vstate.MultisigActorCodeCid:
+		return actors.MultisigCodeCid
+	case vstate.PaymentChannelActorCodeCid:
+		return actors.PaymentChannelCodeCid
+	default:
+		panic(fmt.Errorf("unknown actor code: %v", code))
+	}
+}
+
+func fromSingletonAddress(addr vstate.SingletonActorID) vstate.Address {
+	switch addr {
+	case vstate.InitAddress:
+		return vstate.Address(actors.InitAddress.Bytes())
+	case vstate.NetworkAddress:
+		return vstate.Address(actors.NetworkAddress.Bytes())
+	case vstate.StorageMarketAddress:
+		return vstate.Address(actors.StorageMarketAddress.Bytes())
+	case vstate.BurntFundsAddress:
+		return vstate.Address(actors.BurntFundsAddress.Bytes())
+	case vstate.StoragePowerAddress:
+		return vstate.Address(actors.StoragePowerAddress.Bytes())
+	default:
+		panic(fmt.Errorf("unknown singleton actor address: %v", addr))
+	}
+}

go.mod

@@ -8,13 +8,17 @@ require (
 	github.com/GeertJohan/go.rice v1.0.0
 	github.com/Gurpartap/async v0.0.0-20180927173644-4f7f499dd9ee
 	github.com/StackExchange/wmi v0.0.0-20190523213315-cbe66965904d // indirect
+	github.com/btcsuite/btcd v0.0.0-20190807005414-4063feeff79a // indirect
 	github.com/fatih/color v1.7.0 // indirect
+	github.com/filecoin-project/chain-validation v0.0.0-20191106200742-11986803c0f7
 	github.com/filecoin-project/go-amt-ipld v0.0.0-20190919045431-3650716fff16
 	github.com/filecoin-project/go-bls-sigs v0.0.0-20190718224239-4bc4b8a7bbf8
 	github.com/filecoin-project/go-leb128 v0.0.0-20190212224330-8d79a5489543
 	github.com/filecoin-project/go-sectorbuilder v0.0.0-00010101000000-000000000000
 	github.com/gbrlsnchs/jwt/v3 v3.0.0-beta.1
 	github.com/go-ole/go-ole v1.2.4 // indirect
+	github.com/google/go-cmp v0.3.1 // indirect
+	github.com/gopherjs/gopherjs v0.0.0-20190812055157-5d271430af9f // indirect
 	github.com/gorilla/websocket v1.4.0
 	github.com/hashicorp/go-multierror v1.0.0
 	github.com/hashicorp/golang-lru v0.5.3
@@ -22,7 +26,7 @@ require (
 	github.com/ipfs/go-bitswap v0.1.8
 	github.com/ipfs/go-block-format v0.0.2
 	github.com/ipfs/go-blockservice v0.1.3-0.20190908200855-f22eea50656c
-	github.com/ipfs/go-car v0.0.0-20190823083746-79984a8632b4
+	github.com/ipfs/go-car v0.0.2
 	github.com/ipfs/go-cid v0.0.3
 	github.com/ipfs/go-datastore v0.1.0
 	github.com/ipfs/go-ds-badger v0.0.5
@@ -40,10 +44,11 @@ require (
 	github.com/ipfs/go-ipld-cbor v0.0.3
 	github.com/ipfs/go-ipld-format v0.0.2
 	github.com/ipfs/go-log v0.0.2-0.20190920042044-a609c1ae5144
-	github.com/ipfs/go-merkledag v0.2.3
+	github.com/ipfs/go-merkledag v0.2.4
 	github.com/ipfs/go-unixfs v0.2.2-0.20190827150610-868af2e9e5cb
 	github.com/ipld/go-ipld-prime v0.0.2-0.20191025154717-8dff1cbec43b
 	github.com/ipsn/go-secp256k1 v0.0.0-20180726113642-9d62b9f0bc52
+	github.com/libp2p/go-eventbus v0.1.0 // indirect
 	github.com/libp2p/go-libp2p v0.3.0
 	github.com/libp2p/go-libp2p-circuit v0.1.1
 	github.com/libp2p/go-libp2p-connmgr v0.1.0
@@ -61,9 +66,11 @@ require (
 	github.com/libp2p/go-libp2p-record v0.1.1
 	github.com/libp2p/go-libp2p-routing-helpers v0.1.0
 	github.com/libp2p/go-libp2p-secio v0.2.0
+	github.com/libp2p/go-libp2p-swarm v0.2.1 // indirect
 	github.com/libp2p/go-libp2p-tls v0.1.0
 	github.com/libp2p/go-libp2p-yamux v0.2.1
 	github.com/libp2p/go-maddr-filter v0.0.5
+	github.com/mattn/go-isatty v0.0.9 // indirect
 	github.com/mattn/go-runewidth v0.0.4 // indirect
 	github.com/miekg/dns v1.1.16 // indirect
 	github.com/minio/blake2b-simd v0.0.0-20160723061019-3f5f724cb5b1
@@ -74,9 +81,13 @@ require (
 	github.com/multiformats/go-multiaddr-dns v0.0.3
 	github.com/multiformats/go-multiaddr-net v0.0.1
 	github.com/multiformats/go-multihash v0.0.7
+	github.com/onsi/ginkgo v1.9.0 // indirect
+	github.com/onsi/gomega v1.6.0 // indirect
 	github.com/opentracing/opentracing-go v1.1.0
 	github.com/pkg/errors v0.8.1
 	github.com/polydawn/refmt v0.0.0-20190809202753-05966cbd336a
+	github.com/smartystreets/assertions v1.0.1 // indirect
+	github.com/smartystreets/goconvey v0.0.0-20190731233626-505e41936337 // indirect
 	github.com/stretchr/testify v1.4.0
 	github.com/whyrusleeping/bencher v0.0.0-20190829221104-bb6607aa8bba
 	github.com/whyrusleeping/cbor-gen v0.0.0-20191107223350-6fdade89d679
@@ -90,6 +101,7 @@ require (
 	go.uber.org/zap v1.10.0
 	go4.org v0.0.0-20190313082347-94abd6928b1d // indirect
 	golang.org/x/crypto v0.0.0-20190829043050-9756ffdc2472 // indirect
+	golang.org/x/sys v0.0.0-20190904154756-749cb33beabd // indirect
 	golang.org/x/time v0.0.0-20190308202827-9d24e82272b4
 	golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7
 	google.golang.org/api v0.9.0 // indirect

go.sum

@@ -15,8 +15,10 @@ github.com/GeertJohan/go.rice v1.0.0/go.mod h1:eH6gbSOAUv07dQuZVnBmoDP8mgsM1rtix
 github.com/Gurpartap/async v0.0.0-20180927173644-4f7f499dd9ee h1:8doiS7ib3zi6/K172oDhSKU0dJ/miJramo9NITOMyZQ=
 github.com/Gurpartap/async v0.0.0-20180927173644-4f7f499dd9ee/go.mod h1:W0GbEAA4uFNYOGG2cJpmFJ04E6SD1NLELPYZB57/7AY=
 github.com/Kubuxu/go-os-helper v0.0.1/go.mod h1:N8B+I7vPCT80IcP58r50u4+gEEcsZETFUpAzWW2ep1Y=
+github.com/OpenPeeDeeP/depguard v1.0.0/go.mod h1:7/4sitnI9YlQgTLLk734QlzXT8DuHVnAyztLplQjk+o=
 github.com/Shopify/sarama v1.19.0/go.mod h1:FVkBWblsNy7DGZRfXLU0O9RCGt5g3g3yEuWXgklEdEo=
 github.com/Shopify/toxiproxy v2.1.4+incompatible/go.mod h1:OXgGpZ6Cli1/URJOF1DMxUHB2q5Ap20/P/eIdh4G0pI=
+github.com/StackExchange/wmi v0.0.0-20180116203802-5d049714c4a6/go.mod h1:3eOhrUMpNV+6aFIbp5/iudMxNCF27Vw2OZgy4xEx0Fg=
 github.com/StackExchange/wmi v0.0.0-20190523213315-cbe66965904d h1:G0m3OIz70MZUWq3EgK3CesDbo8upS2Vm9/P3FtgI+Jk=
 github.com/StackExchange/wmi v0.0.0-20190523213315-cbe66965904d/go.mod h1:3eOhrUMpNV+6aFIbp5/iudMxNCF27Vw2OZgy4xEx0Fg=
 github.com/Stebalien/go-bitfield v0.0.1 h1:X3kbSSPUaJK60wV2hjOPZwmpljr6VGCqdq4cBLhbQBo=
@@ -32,6 +34,8 @@ github.com/apache/thrift v0.12.0 h1:pODnxUFNcjP9UTLZGTdeh+j16A8lJbRvD3rOtrk/7bs=
 github.com/apache/thrift v0.12.0/go.mod h1:cp2SuWMxlEZw2r+iP2GNCdIi4C1qmUzdZFSVb+bacwQ=
 github.com/armon/consul-api v0.0.0-20180202201655-eb2c6b5be1b6/go.mod h1:grANhF5doyWs3UAsr3K4I6qtAmlQcZDesFNEHPZAzj8=
 github.com/beorn7/perks v0.0.0-20180321164747-3a771d992973/go.mod h1:Dwedo/Wpr24TaqPxmxbtue+5NUziq4I4S80YR8gNf3Q=
+github.com/beorn7/perks v1.0.0/go.mod h1:KWe93zE9D1o94FZ5RNwFwVgaQK1VOXiVxmqh+CedLV8=
+github.com/beorn7/perks v1.0.1/go.mod h1:G2ZrVWU2WbWT9wwq4/hrbKbnv/1ERSJQ0ibhJ6rlkpw=
 github.com/btcsuite/btcd v0.0.0-20190213025234-306aecffea32/go.mod h1:DrZx5ec/dmnfpw9KyYoQyYo7d0KEvTkk/5M/vbZjAr8=
 github.com/btcsuite/btcd v0.0.0-20190523000118-16327141da8c/go.mod h1:3J08xEfcugPacsc34/LKRU2yO7YmuT8yt28J8k2+rrI=
 github.com/btcsuite/btcd v0.0.0-20190605094302-a0d1e3e36d50/go.mod h1:3J08xEfcugPacsc34/LKRU2yO7YmuT8yt28J8k2+rrI=
@@ -75,8 +79,12 @@ github.com/dustin/go-humanize v1.0.0/go.mod h1:HtrtbFcZ19U5GC7JDqmcUSB87Iq5E25Kn
 github.com/eapache/go-resiliency v1.1.0/go.mod h1:kFI+JgMyC7bLPUVY133qvEBtVayf5mFgVsvEsIPBvNs=
 github.com/eapache/go-xerial-snappy v0.0.0-20180814174437-776d5712da21/go.mod h1:+020luEh2TKB4/GOp8oxxtq0Daoen/Cii55CzbTV6DU=
 github.com/eapache/queue v1.1.0/go.mod h1:6eCeP0CKFpHLu8blIFXhExK/dRa7WDZfr6jVFPTqq+I=
+github.com/fatih/color v1.6.0/go.mod h1:Zm6kSWBoL9eyXnKyktHP6abPY2pDugNf5KwzbycvMj4=
 github.com/fatih/color v1.7.0 h1:DkWD4oS2D8LGGgTQ6IvwJJXSL5Vp2ffcQg58nFV38Ys=
 github.com/fatih/color v1.7.0/go.mod h1:Zm6kSWBoL9eyXnKyktHP6abPY2pDugNf5KwzbycvMj4=
+github.com/fd/go-nat v1.0.0/go.mod h1:BTBu/CKvMmOMUPkKVef1pngt2WFH/lg7E6yQnulfp6E=
+github.com/filecoin-project/chain-validation v0.0.0-20191106200742-11986803c0f7 h1:Ags/z6ZubzKonQ9PsY9fO439yGdVg07qpdxfv/AEUno=
+github.com/filecoin-project/chain-validation v0.0.0-20191106200742-11986803c0f7/go.mod h1:0/0/QUNqpF/jVzLHFncGeT3NvGPODBhGzQlNgzmoZew=
 github.com/filecoin-project/go-amt-ipld v0.0.0-20190919045431-3650716fff16 h1:NzojcJU1VbS6zdLG13JMYis/cQy/MrN3rxmZRq56jKA=
 github.com/filecoin-project/go-amt-ipld v0.0.0-20190919045431-3650716fff16/go.mod h1:lKjJYPg2kwbav5f78i5YA8kGccnZn18IySbpneXvaQs=
 github.com/filecoin-project/go-leb128 v0.0.0-20190212224330-8d79a5489543 h1:aMJGfgqe1QDhAVwxRg5fjCRF533xHidiKsugk7Vvzug=
@@ -87,16 +95,35 @@ github.com/gbrlsnchs/jwt/v3 v3.0.0-beta.1 h1:EzDjxMg43q1tA2c0MV3tNbaontnHLplHyFF
 github.com/gbrlsnchs/jwt/v3 v3.0.0-beta.1/go.mod h1:0eHX/BVySxPc6SE2mZRoppGq7qcEagxdmQnA3dzork8=
 github.com/go-check/check v0.0.0-20180628173108-788fd7840127 h1:0gkP6mzaMqkmpcJYCFOLkIBwI7xFExG03bbkOkCvUPI=
 github.com/go-check/check v0.0.0-20180628173108-788fd7840127/go.mod h1:9ES+weclKsC9YodN5RgxqK/VD9HM9JsCSh7rNhMZE98=
+github.com/go-critic/go-critic v0.3.5-0.20190526074819-1df300866540/go.mod h1:+sE8vrLDS2M0pZkBk0wy6+nLdKexVDrl/jBqQOTDThA=
 github.com/go-kit/kit v0.8.0/go.mod h1:xBxKIO96dXMWWy0MnWVtmwkA9/13aqxPnvrjFYMA2as=
+github.com/go-lintpack/lintpack v0.5.2/go.mod h1:NwZuYi2nUHho8XEIZ6SIxihrnPoqBTDqfpXvXAN0sXM=
 github.com/go-logfmt/logfmt v0.3.0/go.mod h1:Qt1PoO58o5twSAckw1HlFXLmHsOX5/0LbT9GBnD5lWE=
+github.com/go-logfmt/logfmt v0.4.0/go.mod h1:3RMwSq7FuexP4Kalkev3ejPJsZTpXXBr9+V4qmtdjCk=
+github.com/go-ole/go-ole v1.2.1/go.mod h1:7FAglXiTm7HKlQRDeOQ6ZNUHidzCWXuZWq/1dTyBNF8=
 github.com/go-ole/go-ole v1.2.4 h1:nNBDSCOigTSiarFpYE9J/KtEA1IOW4CNeqT9TQDqCxI=
 github.com/go-ole/go-ole v1.2.4/go.mod h1:XCwSNxSkXRo4vlyPy93sltvi/qJq0jqQhjqQNIwKuxM=
 github.com/go-stack/stack v1.8.0/go.mod h1:v0f6uXyyMGvRgIKkXu+yp6POWl0qKG85gN/melR3HDY=
+github.com/go-toolsmith/astcast v1.0.0/go.mod h1:mt2OdQTeAQcY4DQgPSArJjHCcOwlX+Wl/kwN+LbLGQ4=
+github.com/go-toolsmith/astcopy v1.0.0/go.mod h1:vrgyG+5Bxrnz4MZWPF+pI4R8h3qKRjjyvV/DSez4WVQ=
+github.com/go-toolsmith/astequal v0.0.0-20180903214952-dcb477bfacd6/go.mod h1:H+xSiq0+LtiDC11+h1G32h7Of5O3CYFJ99GVbS5lDKY=
+github.com/go-toolsmith/astequal v1.0.0/go.mod h1:H+xSiq0+LtiDC11+h1G32h7Of5O3CYFJ99GVbS5lDKY=
+github.com/go-toolsmith/astfmt v0.0.0-20180903215011-8f8ee99c3086/go.mod h1:mP93XdblcopXwlyN4X4uodxXQhldPGZbcEJIimQHrkg=
+github.com/go-toolsmith/astfmt v1.0.0/go.mod h1:cnWmsOAuq4jJY6Ct5YWlVLmcmLMn1JUPuQIHCY7CJDw=
+github.com/go-toolsmith/astinfo v0.0.0-20180906194353-9809ff7efb21/go.mod h1:dDStQCHtmZpYOmjRP/8gHHnCCch3Zz3oEgCdZVdtweU=
+github.com/go-toolsmith/astp v0.0.0-20180903215135-0af7e3c24f30/go.mod h1:SV2ur98SGypH1UjcPpCatrV5hPazG6+IfNHbkDXBRrk=
+github.com/go-toolsmith/astp v1.0.0/go.mod h1:RSyrtpVlfTFGDYRbrjyWP1pYu//tSFcvdYrA8meBmLI=
+github.com/go-toolsmith/pkgload v0.0.0-20181119091011-e9e65178eee8/go.mod h1:WoMrjiy4zvdS+Bg6z9jZH82QXwkcgCBX6nOfnmdaHks=
+github.com/go-toolsmith/pkgload v1.0.0/go.mod h1:5eFArkbO80v7Z0kdngIxsRXRMTaX4Ilcwuh3clNrQJc=
+github.com/go-toolsmith/strparse v1.0.0/go.mod h1:YI2nUKP9YGZnL/L1/DLFBfixrcjslWct4wyljWhSRy8=
+github.com/go-toolsmith/typep v1.0.0/go.mod h1:JSQCQMUPdRlMZFswiq3TGpNp1GMktqkR2Ns5AIQkATU=
+github.com/gobwas/glob v0.2.3/go.mod h1:d3Ez4x06l9bZtSvzIay5+Yzi0fmZzPgnTbPcKjJAkT8=
 github.com/gogo/protobuf v1.1.1/go.mod h1:r8qH/GZQm5c6nD/R0oafs1akxWv10x8SbQlK7atdtwQ=
 github.com/gogo/protobuf v1.2.0/go.mod h1:r8qH/GZQm5c6nD/R0oafs1akxWv10x8SbQlK7atdtwQ=
 github.com/gogo/protobuf v1.2.1 h1:/s5zKNz0uPFCZ5hddgPdo2TK2TVrUNMn0OOX8/aZMTE=
 github.com/gogo/protobuf v1.2.1/go.mod h1:hp+jE20tsWTFYpLwKvXlhS1hjn+gTNwPg2I6zVXpSg4=
 github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b/go.mod h1:SBH7ygxi8pfUlaOkMMuAQtPIUF8ecWP5IEl/CR7VP2Q=
+github.com/golang/mock v1.0.0/go.mod h1:oTYuIxOrZwtPieC+H1uAHpcLFnEyAGVDL/k47Jfbm0A=
 github.com/golang/mock v1.1.1/go.mod h1:oTYuIxOrZwtPieC+H1uAHpcLFnEyAGVDL/k47Jfbm0A=
 github.com/golang/mock v1.2.0 h1:28o5sBqPkBsMGnC6b4MvE2TzSr5/AT4c/1fLqVGIwlk=
 github.com/golang/mock v1.2.0/go.mod h1:oTYuIxOrZwtPieC+H1uAHpcLFnEyAGVDL/k47Jfbm0A=
@@ -106,11 +133,29 @@ github.com/golang/protobuf v1.3.1/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5y
 github.com/golang/protobuf v1.3.2 h1:6nsPYzhq5kReh6QImI3k5qWzO4PEbvbIW2cwSfR/6xs=
 github.com/golang/protobuf v1.3.2/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
 github.com/golang/snappy v0.0.0-20180518054509-2e65f85255db/go.mod h1:/XxbfmMg8lxefKM7IXC3fBNl/7bRcc72aCRzEWrmP2Q=
+github.com/golangci/check v0.0.0-20180506172741-cfe4005ccda2/go.mod h1:k9Qvh+8juN+UKMCS/3jFtGICgW8O96FVaZsaxdzDkR4=
+github.com/golangci/dupl v0.0.0-20180902072040-3e9179ac440a/go.mod h1:ryS0uhF+x9jgbj/N71xsEqODy9BN81/GonCZiOzirOk=
+github.com/golangci/errcheck v0.0.0-20181223084120-ef45e06d44b6/go.mod h1:DbHgvLiFKX1Sh2T1w8Q/h4NAI8MHIpzCdnBUDTXU3I0=
+github.com/golangci/go-misc v0.0.0-20180628070357-927a3d87b613/go.mod h1:SyvUF2NxV+sN8upjjeVYr5W7tyxaT1JVtvhKhOn2ii8=
+github.com/golangci/go-tools v0.0.0-20190318055746-e32c54105b7c/go.mod h1:unzUULGw35sjyOYjUt0jMTXqHlZPpPc6e+xfO4cd6mM=
+github.com/golangci/goconst v0.0.0-20180610141641-041c5f2b40f3/go.mod h1:JXrF4TWy4tXYn62/9x8Wm/K/dm06p8tCKwFRDPZG/1o=
+github.com/golangci/gocyclo v0.0.0-20180528134321-2becd97e67ee/go.mod h1:ozx7R9SIwqmqf5pRP90DhR2Oay2UIjGuKheCBCNwAYU=
+github.com/golangci/gofmt v0.0.0-20181222123516-0b8337e80d98/go.mod h1:9qCChq59u/eW8im404Q2WWTrnBUQKjpNYKMbU4M7EFU=
+github.com/golangci/golangci-lint v1.18.0/go.mod h1:kaqo8l0OZKYPtjNmG4z4HrWLgcYNIJ9B9q3LWri9uLg=
+github.com/golangci/gosec v0.0.0-20190211064107-66fb7fc33547/go.mod h1:0qUabqiIQgfmlAmulqxyiGkkyF6/tOGSnY2cnPVwrzU=
+github.com/golangci/ineffassign v0.0.0-20190609212857-42439a7714cc/go.mod h1:e5tpTHCfVze+7EpLEozzMB3eafxo2KT5veNg1k6byQU=
+github.com/golangci/lint-1 v0.0.0-20190420132249-ee948d087217/go.mod h1:66R6K6P6VWk9I95jvqGxkqJxVWGFy9XlDwLwVz1RCFg=
+github.com/golangci/maligned v0.0.0-20180506175553-b1d89398deca/go.mod h1:tvlJhZqDe4LMs4ZHD0oMUlt9G2LWuDGoisJTBzLMV9o=
+github.com/golangci/misspell v0.0.0-20180809174111-950f5d19e770/go.mod h1:dEbvlSfYbMQDtrpRMQU675gSDLDNa8sCPPChZ7PhiVA=
+github.com/golangci/prealloc v0.0.0-20180630174525-215b22d4de21/go.mod h1:tf5+bzsHdTM0bsB7+8mt0GUMvjCgwLpTapNZHU8AajI=
+github.com/golangci/revgrep v0.0.0-20180526074752-d9c87f5ffaf0/go.mod h1:qOQCunEYvmd/TLamH+7LlVccLvUH5kZNhbCgTHoBbp4=
+github.com/golangci/unconvert v0.0.0-20180507085042-28b1c447d1f4/go.mod h1:Izgrg8RkN3rCIMLGE9CyYmU9pY2Jer6DgANEnZ/L/cQ=
 github.com/google/btree v0.0.0-20180813153112-4030bb1f1f0c/go.mod h1:lNA+9X1NB3Zf8V7Ke586lFgjr2dZNuvo3lPJSGZ5JPQ=
 github.com/google/go-cmp v0.2.0/go.mod h1:oXzfMopK8JAjlY9xF4vHSVASa0yLyX7SntLO5aqRK0M=
 github.com/google/go-cmp v0.3.0/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMywk6iLU=
 github.com/google/go-cmp v0.3.1 h1:Xye71clBPdm5HgqGwUkwhbynsUJZhDbS20FvLhQ2izg=
 github.com/google/go-cmp v0.3.1/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMywk6iLU=
+github.com/google/gofuzz v1.0.0/go.mod h1:dBl0BpW6vV/+mYPU4Po3pmUjxk6FQPldtuIdl/M65Eg=
 github.com/google/martian v2.1.0+incompatible/go.mod h1:9I4somxYTbIHy5NJKHRl3wXiIaQGbYVAs8BPL6v8lEs=
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@@ -125,8 +170,10 @@ github.com/gorilla/context v1.1.1/go.mod h1:kBGZzfjB9CEq2AlWe17Uuf7NDRt0dE0s8S51
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@@ -135,9 +182,11 @@ github.com/hashicorp/golang-lru v0.5.0/go.mod h1:/m3WP610KZHVQ1SGc6re/UDhFvYD7pJ
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@@ -150,18 +199,16 @@ github.com/ipfs/bbloom v0.0.4/go.mod h1:cS9YprKXpoZ9lT0n/Mw/a6/aFV6DTjTLYHeA+gyq
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@@ -183,7 +230,6 @@ github.com/ipfs/go-fs-lock v0.0.1/go.mod h1:DNBekbboPKcxs1aukPSaOtFA3QfSdi5C855v
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@@ -202,6 +248,7 @@ github.com/ipfs/go-ipfs-exchange-offline v0.0.1/go.mod h1:WhHSFCVYX36H/anEKQboAz
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@@ -222,6 +269,8 @@ github.com/ipfs/go-log v0.0.2-0.20190920042044-a609c1ae5144/go.mod h1:azGN5dH7ai
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@@ -237,6 +286,7 @@ github.com/ipld/go-ipld-prime v0.0.2-0.20191025154717-8dff1cbec43b h1:ACSEK4f1SD
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@@ -253,6 +303,8 @@ github.com/jessevdk/go-flags v0.0.0-20141203071132-1679536dcc89/go.mod h1:4FA24M
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@@ -260,8 +312,13 @@ github.com/jtolds/gls v4.20.0+incompatible/go.mod h1:QJZ7F/aHp+rZTRtaJ1ow/lLfFfV
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@@ -276,6 +333,7 @@ github.com/libp2p/go-addr-util v0.0.1/go.mod h1:4ac6O7n9rIAKB1dnd+s8IbbMXkt+oBpz
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@@ -305,32 +363,41 @@ github.com/libp2p/go-libp2p-core v0.0.6/go.mod h1:0d9xmaYAVY5qmbp/fcgxHT3ZJsLjYe
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@@ -549,6 +667,9 @@ github.com/whyrusleeping/go-keyspace v0.0.0-20160322163242-5b898ac5add1/go.mod h
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@@ -559,6 +680,7 @@ github.com/whyrusleeping/pubsub v0.0.0-20131020042734-02de8aa2db3d h1:wnjWu1N8UT
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@@ -588,12 +710,13 @@ golang.org/x/crypto v0.0.0-20190211182817-74369b46fc67/go.mod h1:6SG95UA2DQfeDnf
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@@ -602,9 +725,12 @@ golang.org/x/lint v0.0.0-20190227174305-5b3e6a55c961/go.mod h1:wehouNa3lNwaWXcvx
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