mempool: length prefix txs when getting them from mempool (#5483)

## Description

In protobuf `[]byte` is varint encoded. When adding txs to the block we were not taking this into account. 


Closes: #XXX

blockchain/msgs_test.go

@@ -97,7 +97,7 @@ func TestBlockchainMessageVectors(t *testing.T) {
 			BlockRequest: &bcproto.BlockRequest{Height: math.MaxInt64}}},
 			"0a0a08ffffffffffffffff7f"},
 		{"BlockResponseMessage", &bcproto.Message{Sum: &bcproto.Message_BlockResponse{
-			BlockResponse: &bcproto.BlockResponse{Block: bpb}}}, "1a93010a90010a5b0a02080b1803220b088092b8c398feffffff012a0212003a20c4da88e876062aa1543400d50d0eaa0dac88096057949cfb7bca7f3a48c04bf96a20e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855122f0a0b48656c6c6f20576f726c641220c4da88e876062aa1543400d50d0eaa0dac88096057949cfb7bca7f3a48c04bf91a00"},
+			BlockResponse: &bcproto.BlockResponse{Block: bpb}}}, "1a700a6e0a5b0a02080b1803220b088092b8c398feffffff012a0212003a20c4da88e876062aa1543400d50d0eaa0dac88096057949cfb7bca7f3a48c04bf96a20e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855120d0a0b48656c6c6f20576f726c641a00"},
 		{"NoBlockResponseMessage", &bcproto.Message{Sum: &bcproto.Message_NoBlockResponse{
 			NoBlockResponse: &bcproto.NoBlockResponse{Height: 1}}}, "12020801"},
 		{"NoBlockResponseMessage", &bcproto.Message{Sum: &bcproto.Message_NoBlockResponse{

mempool/clist_mempool.go

@@ -517,21 +517,21 @@ func (mem *CListMempool) ReapMaxBytesMaxGas(maxBytes, maxGas int64) types.Txs {
 	mem.updateMtx.RLock()
 	defer mem.updateMtx.RUnlock()
 
-	var (
-		totalBytes int64
-		totalGas   int64
-	)
+	var totalGas int64
+
 	// TODO: we will get a performance boost if we have a good estimate of avg
 	// size per tx, and set the initial capacity based off of that.
 	// txs := make([]types.Tx, 0, tmmath.MinInt(mem.txs.Len(), max/mem.avgTxSize))
 	txs := make([]types.Tx, 0, mem.txs.Len())
 	for e := mem.txs.Front(); e != nil; e = e.Next() {
 		memTx := e.Value.(*mempoolTx)
+
+		dataSize := types.ComputeProtoSizeForTxs(txs, memTx.tx)
+
 		// Check total size requirement
-		if maxBytes > -1 && totalBytes+int64(len(memTx.tx)) > maxBytes {
+		if maxBytes > -1 && dataSize > maxBytes {
 			return txs
 		}
-		totalBytes += int64(len(memTx.tx))
 		// Check total gas requirement.
 		// If maxGas is negative, skip this check.
 		// Since newTotalGas < masGas, which

mempool/clist_mempool_test.go

@@ -121,11 +121,11 @@ func TestReapMaxBytesMaxGas(t *testing.T) {
 		{20, 0, -1, 0},
 		{20, 0, 10, 0},
 		{20, 10, 10, 0},
-		{20, 20, 10, 1},
-		{20, 100, 5, 5},
-		{20, 200, -1, 10},
-		{20, 200, 10, 10},
-		{20, 200, 15, 10},
+		{20, 24, 10, 1},
+		{20, 240, 5, 5},
+		{20, 240, -1, 10},
+		{20, 240, 10, 10},
+		{20, 240, 15, 10},
 		{20, 20000, -1, 20},
 		{20, 20000, 5, 5},
 		{20, 20000, 30, 20},
@@ -159,15 +159,15 @@ func TestMempoolFilters(t *testing.T) {
 	}{
 		{10, nopPreFilter, nopPostFilter, 10},
 		{10, PreCheckMaxBytes(10), nopPostFilter, 0},
-		{10, PreCheckMaxBytes(20), nopPostFilter, 10},
+		{10, PreCheckMaxBytes(22), nopPostFilter, 10},
 		{10, nopPreFilter, PostCheckMaxGas(-1), 10},
 		{10, nopPreFilter, PostCheckMaxGas(0), 0},
 		{10, nopPreFilter, PostCheckMaxGas(1), 10},
 		{10, nopPreFilter, PostCheckMaxGas(3000), 10},
 		{10, PreCheckMaxBytes(10), PostCheckMaxGas(20), 0},
 		{10, PreCheckMaxBytes(30), PostCheckMaxGas(20), 10},
-		{10, PreCheckMaxBytes(20), PostCheckMaxGas(1), 10},
-		{10, PreCheckMaxBytes(20), PostCheckMaxGas(0), 0},
+		{10, PreCheckMaxBytes(22), PostCheckMaxGas(1), 10},
+		{10, PreCheckMaxBytes(22), PostCheckMaxGas(0), 0},
 	}
 	for tcIndex, tt := range tests {
 		err := mempool.Update(1, emptyTxArr, abciResponses(len(emptyTxArr), abci.CodeTypeOK), tt.preFilter, tt.postFilter)

mempool/mempool.go

@@ -105,7 +105,8 @@ type TxInfo struct {
 // PreCheckMaxBytes checks that the size of the transaction is smaller or equal to the expected maxBytes.
 func PreCheckMaxBytes(maxBytes int64) PreCheckFunc {
 	return func(tx types.Tx) error {
-		txSize := int64(len(tx))
+		txSize := types.ComputeProtoSizeForTx(tx)
+
 		if txSize > maxBytes {
 			return fmt.Errorf("tx size is too big: %d, max: %d",
 				txSize, maxBytes)

proto/tendermint/types/types.pb.go

@@ -10,7 +10,6 @@ import (
 	_ "github.com/gogo/protobuf/types"
 	github_com_gogo_protobuf_types "github.com/gogo/protobuf/types"
 	crypto "github.com/tendermint/tendermint/proto/tendermint/crypto"
-	bits "github.com/tendermint/tendermint/proto/tendermint/libs/bits"
 	version "github.com/tendermint/tendermint/proto/tendermint/version"
 	io "io"
 	math "math"
@@ -422,8 +421,6 @@ type Data struct {
 	// NOTE: not all txs here are valid.  We're just agreeing on the order first.
 	// This means that block.AppHash does not include these txs.
 	Txs [][]byte `protobuf:"bytes,1,rep,name=txs,proto3" json:"txs,omitempty"`
-	// Volatile
-	Hash []byte `protobuf:"bytes,2,opt,name=hash,proto3" json:"hash,omitempty"`
 }
 
 func (m *Data) Reset()         { *m = Data{} }
@@ -466,13 +463,6 @@ func (m *Data) GetTxs() [][]byte {
 	return nil
 }
 
-func (m *Data) GetHash() []byte {
-	if m != nil {
-		return m.Hash
-	}
-	return nil
-}
-
 // Vote represents a prevote, precommit, or commit vote from validators for
 // consensus.
 type Vote struct {
@@ -577,12 +567,10 @@ func (m *Vote) GetSignature() []byte {
 
 // Commit contains the evidence that a block was committed by a set of validators.
 type Commit struct {
-	Height     int64          `protobuf:"varint,1,opt,name=height,proto3" json:"height,omitempty"`
-	Round      int32          `protobuf:"varint,2,opt,name=round,proto3" json:"round,omitempty"`
-	BlockID    BlockID        `protobuf:"bytes,3,opt,name=block_id,json=blockId,proto3" json:"block_id"`
-	Signatures []CommitSig    `protobuf:"bytes,4,rep,name=signatures,proto3" json:"signatures"`
-	Hash       []byte         `protobuf:"bytes,5,opt,name=hash,proto3" json:"hash,omitempty"`
-	BitArray   *bits.BitArray `protobuf:"bytes,6,opt,name=bit_array,json=bitArray,proto3" json:"bit_array,omitempty"`
+	Height     int64       `protobuf:"varint,1,opt,name=height,proto3" json:"height,omitempty"`
+	Round      int32       `protobuf:"varint,2,opt,name=round,proto3" json:"round,omitempty"`
+	BlockID    BlockID     `protobuf:"bytes,3,opt,name=block_id,json=blockId,proto3" json:"block_id"`
+	Signatures []CommitSig `protobuf:"bytes,4,rep,name=signatures,proto3" json:"signatures"`
 }
 
 func (m *Commit) Reset()         { *m = Commit{} }
@@ -646,20 +634,6 @@ func (m *Commit) GetSignatures() []CommitSig {
 	return nil
 }
 
-func (m *Commit) GetHash() []byte {
-	if m != nil {
-		return m.Hash
-	}
-	return nil
-}
-
-func (m *Commit) GetBitArray() *bits.BitArray {
-	if m != nil {
-		return m.BitArray
-	}
-	return nil
-}
-
 // CommitSig is a part of the Vote included in a Commit.
 type CommitSig struct {
 	BlockIdFlag      BlockIDFlag `protobuf:"varint,1,opt,name=block_id_flag,json=blockIdFlag,proto3,enum=tendermint.types.BlockIDFlag" json:"block_id_flag,omitempty"`
@@ -1075,93 +1049,90 @@ func init() {
 func init() { proto.RegisterFile("tendermint/types/types.proto", fileDescriptor_d3a6e55e2345de56) }
 
 var fileDescriptor_d3a6e55e2345de56 = []byte{
-	// 1364 bytes of a gzipped FileDescriptorProto
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 }
 
 func (m *PartSetHeader) Marshal() (dAtA []byte, err error) {
@@ -1430,13 +1401,6 @@ func (m *Data) MarshalToSizedBuffer(dAtA []byte) (int, error) {
 	_ = i
 	var l int
 	_ = l
-	if len(m.Hash) > 0 {
-		i -= len(m.Hash)
-		copy(dAtA[i:], m.Hash)
-		i = encodeVarintTypes(dAtA, i, uint64(len(m.Hash)))
-		i--
-		dAtA[i] = 0x12
-	}
 	if len(m.Txs) > 0 {
 		for iNdEx := len(m.Txs) - 1; iNdEx >= 0; iNdEx-- {
 			i -= len(m.Txs[iNdEx])
@@ -1544,25 +1508,6 @@ func (m *Commit) MarshalToSizedBuffer(dAtA []byte) (int, error) {
 	_ = i
 	var l int
 	_ = l
-	if m.BitArray != nil {
-		{
-			size, err := m.BitArray.MarshalToSizedBuffer(dAtA[:i])
-			if err != nil {
-				return 0, err
-			}
-			i -= size
-			i = encodeVarintTypes(dAtA, i, uint64(size))
-		}
-		i--
-		dAtA[i] = 0x32
-	}
-	if len(m.Hash) > 0 {
-		i -= len(m.Hash)
-		copy(dAtA[i:], m.Hash)
-		i = encodeVarintTypes(dAtA, i, uint64(len(m.Hash)))
-		i--
-		dAtA[i] = 0x2a
-	}
 	if len(m.Signatures) > 0 {
 		for iNdEx := len(m.Signatures) - 1; iNdEx >= 0; iNdEx-- {
 			{
@@ -1627,12 +1572,12 @@ func (m *CommitSig) MarshalToSizedBuffer(dAtA []byte) (int, error) {
 		i--
 		dAtA[i] = 0x22
 	}
-	n10, err10 := github_com_gogo_protobuf_types.StdTimeMarshalTo(m.Timestamp, dAtA[i-github_com_gogo_protobuf_types.SizeOfStdTime(m.Timestamp):])
-	if err10 != nil {
-		return 0, err10
+	n9, err9 := github_com_gogo_protobuf_types.StdTimeMarshalTo(m.Timestamp, dAtA[i-github_com_gogo_protobuf_types.SizeOfStdTime(m.Timestamp):])
+	if err9 != nil {
+		return 0, err9
 	}
-	i -= n10
-	i = encodeVarintTypes(dAtA, i, uint64(n10))
+	i -= n9
+	i = encodeVarintTypes(dAtA, i, uint64(n9))
 	i--
 	dAtA[i] = 0x1a
 	if len(m.ValidatorAddress) > 0 {
@@ -1677,12 +1622,12 @@ func (m *Proposal) MarshalToSizedBuffer(dAtA []byte) (int, error) {
 		i--
 		dAtA[i] = 0x3a
 	}
-	n11, err11 := github_com_gogo_protobuf_types.StdTimeMarshalTo(m.Timestamp, dAtA[i-github_com_gogo_protobuf_types.SizeOfStdTime(m.Timestamp):])
-	if err11 != nil {
-		return 0, err11
+	n10, err10 := github_com_gogo_protobuf_types.StdTimeMarshalTo(m.Timestamp, dAtA[i-github_com_gogo_protobuf_types.SizeOfStdTime(m.Timestamp):])
+	if err10 != nil {
+		return 0, err10
 	}
-	i -= n11
-	i = encodeVarintTypes(dAtA, i, uint64(n11))
+	i -= n10
+	i = encodeVarintTypes(dAtA, i, uint64(n10))
 	i--
 	dAtA[i] = 0x32
 	{
@@ -2044,10 +1989,6 @@ func (m *Data) Size() (n int) {
 			n += 1 + l + sovTypes(uint64(l))
 		}
 	}
-	l = len(m.Hash)
-	if l > 0 {
-		n += 1 + l + sovTypes(uint64(l))
-	}
 	return n
 }
 
@@ -2104,14 +2045,6 @@ func (m *Commit) Size() (n int) {
 			n += 1 + l + sovTypes(uint64(l))
 		}
 	}
-	l = len(m.Hash)
-	if l > 0 {
-		n += 1 + l + sovTypes(uint64(l))
-	}
-	if m.BitArray != nil {
-		l = m.BitArray.Size()
-		n += 1 + l + sovTypes(uint64(l))
-	}
 	return n
 }
 
@@ -3181,40 +3114,6 @@ func (m *Data) Unmarshal(dAtA []byte) error {
 			m.Txs = append(m.Txs, make([]byte, postIndex-iNdEx))
 			copy(m.Txs[len(m.Txs)-1], dAtA[iNdEx:postIndex])
 			iNdEx = postIndex
-		case 2:
-			if wireType != 2 {
-				return fmt.Errorf("proto: wrong wireType = %d for field Hash", wireType)
-			}
-			var byteLen int
-			for shift := uint(0); ; shift += 7 {
-				if shift >= 64 {
-					return ErrIntOverflowTypes
-				}
-				if iNdEx >= l {
-					return io.ErrUnexpectedEOF
-				}
-				b := dAtA[iNdEx]
-				iNdEx++
-				byteLen |= int(b&0x7F) << shift
-				if b < 0x80 {
-					break
-				}
-			}
-			if byteLen < 0 {
-				return ErrInvalidLengthTypes
-			}
-			postIndex := iNdEx + byteLen
-			if postIndex < 0 {
-				return ErrInvalidLengthTypes
-			}
-			if postIndex > l {
-				return io.ErrUnexpectedEOF
-			}
-			m.Hash = append(m.Hash[:0], dAtA[iNdEx:postIndex]...)
-			if m.Hash == nil {
-				m.Hash = []byte{}
-			}
-			iNdEx = postIndex
 		default:
 			iNdEx = preIndex
 			skippy, err := skipTypes(dAtA[iNdEx:])
@@ -3636,76 +3535,6 @@ func (m *Commit) Unmarshal(dAtA []byte) error {
 				return err
 			}
 			iNdEx = postIndex
-		case 5:
-			if wireType != 2 {
-				return fmt.Errorf("proto: wrong wireType = %d for field Hash", wireType)
-			}
-			var byteLen int
-			for shift := uint(0); ; shift += 7 {
-				if shift >= 64 {
-					return ErrIntOverflowTypes
-				}
-				if iNdEx >= l {
-					return io.ErrUnexpectedEOF
-				}
-				b := dAtA[iNdEx]
-				iNdEx++
-				byteLen |= int(b&0x7F) << shift
-				if b < 0x80 {
-					break
-				}
-			}
-			if byteLen < 0 {
-				return ErrInvalidLengthTypes
-			}
-			postIndex := iNdEx + byteLen
-			if postIndex < 0 {
-				return ErrInvalidLengthTypes
-			}
-			if postIndex > l {
-				return io.ErrUnexpectedEOF
-			}
-			m.Hash = append(m.Hash[:0], dAtA[iNdEx:postIndex]...)
-			if m.Hash == nil {
-				m.Hash = []byte{}
-			}
-			iNdEx = postIndex
-		case 6:
-			if wireType != 2 {
-				return fmt.Errorf("proto: wrong wireType = %d for field BitArray", wireType)
-			}
-			var msglen int
-			for shift := uint(0); ; shift += 7 {
-				if shift >= 64 {
-					return ErrIntOverflowTypes
-				}
-				if iNdEx >= l {
-					return io.ErrUnexpectedEOF
-				}
-				b := dAtA[iNdEx]
-				iNdEx++
-				msglen |= int(b&0x7F) << shift
-				if b < 0x80 {
-					break
-				}
-			}
-			if msglen < 0 {
-				return ErrInvalidLengthTypes
-			}
-			postIndex := iNdEx + msglen
-			if postIndex < 0 {
-				return ErrInvalidLengthTypes
-			}
-			if postIndex > l {
-				return io.ErrUnexpectedEOF
-			}
-			if m.BitArray == nil {
-				m.BitArray = &bits.BitArray{}
-			}
-			if err := m.BitArray.Unmarshal(dAtA[iNdEx:postIndex]); err != nil {
-				return err
-			}
-			iNdEx = postIndex
 		default:
 			iNdEx = preIndex
 			skippy, err := skipTypes(dAtA[iNdEx:])

proto/tendermint/types/types.proto

@@ -5,7 +5,6 @@ option go_package = "github.com/tendermint/tendermint/proto/tendermint/types";
 
 import "gogoproto/gogo.proto";
 import "google/protobuf/timestamp.proto";
-import "tendermint/libs/bits/types.proto";
 import "tendermint/crypto/proof.proto";
 import "tendermint/version/types.proto";
 import "tendermint/types/validator.proto";
@@ -88,8 +87,6 @@ message Data {
   // NOTE: not all txs here are valid.  We're just agreeing on the order first.
   // This means that block.AppHash does not include these txs.
   repeated bytes txs = 1;
-  // Volatile
-  bytes hash = 2;
 }
 
 // Vote represents a prevote, precommit, or commit vote from validators for
@@ -113,8 +110,6 @@ message Commit {
   int32                         round      = 2;
   BlockID                       block_id   = 3 [(gogoproto.nullable) = false, (gogoproto.customname) = "BlockID"];
   repeated CommitSig            signatures = 4 [(gogoproto.nullable) = false];
-  bytes                         hash       = 5;
-  tendermint.libs.bits.BitArray bit_array  = 6;
 }
 
 // CommitSig is a part of the Vote included in a Commit.

rpc/client/rpc_test.go

@@ -290,7 +290,7 @@ func TestAppCalls(t *testing.T) {
 		h = apph - 1
 		commit2, err := c.Commit(context.Background(), &h)
 		require.NoError(err)
-		assert.Equal(block.Block.LastCommit, commit2.Commit)
+		assert.Equal(block.Block.LastCommitHash, commit2.Commit.Hash())
 
 		// and we got a proof that works!
 		_pres, err := c.ABCIQueryWithOptions(context.Background(), "/key", k, client.ABCIQueryOptions{Prove: true})

state/execution.go

@@ -104,6 +104,7 @@ func (blockExec *BlockExecutor) CreateProposalBlock(
 
 	// Fetch a limited amount of valid txs
 	maxDataBytes := types.MaxDataBytes(maxBytes, evSize, state.Validators.Size())
+
 	txs := blockExec.mempool.ReapMaxBytesMaxGas(maxDataBytes, maxGas)
 
 	return state.MakeBlock(height, txs, commit, evidence, proposerAddr)

state/tx_filter_test.go

@@ -25,8 +25,8 @@ func TestTxFilter(t *testing.T) {
 		tx    types.Tx
 		isErr bool
 	}{
-		{types.Tx(tmrand.Bytes(2154)), false},
-		{types.Tx(tmrand.Bytes(2155)), true},
+		{types.Tx(tmrand.Bytes(2151)), false},
+		{types.Tx(tmrand.Bytes(2152)), true},
 		{types.Tx(tmrand.Bytes(3000)), true},
 	}
 
@@ -37,7 +37,7 @@ func TestTxFilter(t *testing.T) {
 		state, err := stateStore.LoadFromDBOrGenesisDoc(genDoc)
 		require.NoError(t, err)
 
-		f := sm.TxPreCheck(state) // current max size of a tx 1850
+		f := sm.TxPreCheck(state)
 		if tc.isErr {
 			assert.NotNil(t, f(tc.tx), "#%v", i)
 		} else {

types/block.go

@@ -279,7 +279,6 @@ func MaxDataBytes(maxBytes, evidenceBytes int64, valsCount int) int64 {
 	}
 
 	return maxDataBytes
-
 }
 
 // MaxDataBytesNoEvidence returns the maximum size of block's data when
@@ -925,10 +924,7 @@ func (commit *Commit) ToProto() *tmproto.Commit {
 	c.Height = commit.Height
 	c.Round = commit.Round
 	c.BlockID = commit.BlockID.ToProto()
-	if commit.hash != nil {
-		c.Hash = commit.hash
-	}
-	c.BitArray = commit.bitArray.ToProto()
+
 	return c
 }
 
@@ -940,8 +936,7 @@ func CommitFromProto(cp *tmproto.Commit) (*Commit, error) {
 	}
 
 	var (
-		commit   = new(Commit)
-		bitArray *bits.BitArray
+		commit = new(Commit)
 	)
 
 	bi, err := BlockIDFromProto(&cp.BlockID)
@@ -949,8 +944,6 @@ func CommitFromProto(cp *tmproto.Commit) (*Commit, error) {
 		return nil, err
 	}
 
-	bitArray.FromProto(cp.BitArray)
-
 	sigs := make([]CommitSig, len(cp.Signatures))
 	for i := range cp.Signatures {
 		if err := sigs[i].FromProto(cp.Signatures[i]); err != nil {
@@ -962,8 +955,6 @@ func CommitFromProto(cp *tmproto.Commit) (*Commit, error) {
 	commit.Height = cp.Height
 	commit.Round = cp.Round
 	commit.BlockID = *bi
-	commit.hash = cp.Hash
-	commit.bitArray = bitArray
 
 	return commit, commit.ValidateBasic()
 }
@@ -1025,10 +1016,6 @@ func (data *Data) ToProto() tmproto.Data {
 		tp.Txs = txBzs
 	}
 
-	if data.hash != nil {
-		tp.Hash = data.hash
-	}
-
 	return *tp
 }
 
@@ -1050,8 +1037,6 @@ func DataFromProto(dp *tmproto.Data) (Data, error) {
 		data.Txs = Txs{}
 	}
 
-	data.hash = dp.Hash
-
 	return *data, nil
 }
 

types/block_test.go

@@ -639,9 +639,7 @@ func TestBlockProtoBuf(t *testing.T) {
 
 func TestDataProtoBuf(t *testing.T) {
 	data := &Data{Txs: Txs{Tx([]byte{1}), Tx([]byte{2}), Tx([]byte{3})}}
-	_ = data.Hash()
 	data2 := &Data{Txs: Txs{}}
-	_ = data2.Hash()
 	testCases := []struct {
 		msg     string
 		data1   *Data

types/tx.go

@@ -137,3 +137,23 @@ func TxProofFromProto(pb tmproto.TxProof) (TxProof, error) {
 
 	return pbtp, nil
 }
+
+// ComputeProtoOverheadForTxs wraps the transactions in tmproto.Data{} and calculates the size.
+// https://developers.google.com/protocol-buffers/docs/encoding
+func ComputeProtoSizeForTxs(txs []Tx, tx Tx) int64 {
+	tt := make(Txs, len(txs)+1)
+
+	tt = append(tt, txs...)
+	tt = append(tt, tx)
+	data := Data{Txs: tt}
+	pdData := data.ToProto()
+	return int64(pdData.Size())
+}
+
+// ComputeProtoSizeForTx wraps the transaction in tmproto.Data{} and calculates the size.
+// https://developers.google.com/protocol-buffers/docs/encoding
+func ComputeProtoSizeForTx(tx Tx) int64 {
+	pbdata := tmproto.Data{Txs: [][]byte{tx}}
+
+	return int64(pbdata.Size())
+}