Merge branch 'dev' into add-tx-index

app/appmessage/p2p_msgtx_test.go

@@ -133,8 +133,8 @@ func TestTx(t *testing.T) {
 
 // TestTxHash tests the ability to generate the hash of a transaction accurately.
 func TestTxHashAndID(t *testing.T) {
-	txHash1Str := "93663e597f6c968d32d229002f76408edf30d6a0151ff679fc729812d8cb2acc"
+	txHash1Str := "b06f8b650115b5cf4d59499e10764a9312742930cb43c9b4ff6495d76f332ed7"
-	txID1Str := "24079c6d2bdf602fc389cc307349054937744a9c8dc0f07c023e6af0e949a4e7"
+	txID1Str := "e20225c3d065ee41743607ee627db44d01ef396dc9779b05b2caf55bac50e12d"
 	wantTxID1, err := transactionid.FromString(txID1Str)
 	if err != nil {
 		t.Fatalf("NewTxIDFromStr: %v", err)
@@ -185,7 +185,7 @@ func TestTxHashAndID(t *testing.T) {
 			spew.Sprint(tx1ID), spew.Sprint(wantTxID1))
 	}
 
-	hash2Str := "8dafd1bec24527d8e3b443ceb0a3b92fffc0d60026317f890b2faf5e9afc177a"
+	hash2Str := "fa16a8ce88d52ca1ff45187bbba0d33044e9f5fe309e8d0b22d4812dcf1782b7"
 	wantHash2, err := externalapi.NewDomainHashFromString(hash2Str)
 	if err != nil {
 		t.Errorf("NewTxIDFromStr: %v", err)

app/protocol/flows/v5/blockrelay/ibd_with_headers_proof.go

@@ -25,7 +25,7 @@ func (flow *handleIBDFlow) ibdWithHeadersProof(
 			return err
 		}
 
-		log.Infof("IBD with pruning proof from %s was unsuccessful. Deleting the staging consensus.", flow.peer)
+		log.Infof("IBD with pruning proof from %s was unsuccessful. Deleting the staging consensus. (%s)", flow.peer, err)
 		deleteStagingConsensusErr := flow.Domain().DeleteStagingConsensus()
 		if deleteStagingConsensusErr != nil {
 			return deleteStagingConsensusErr

app/rpc/rpccontext/verbosedata.go

@@ -122,6 +122,7 @@ func (ctx *Context) PopulateTransactionWithVerboseData(
 	}
 
 	ctx.Domain.Consensus().PopulateMass(domainTransaction)
+
 	transaction.VerboseData = &appmessage.RPCTransactionVerboseData{
 		TransactionID: consensushashing.TransactionID(domainTransaction).String(),
 		Hash:          consensushashing.TransactionHash(domainTransaction).String(),

cmd/kaspawallet/create.go

@@ -78,6 +78,11 @@ func create(conf *createConfig) error {
 		return err
 	}
 
+	err = file.TryLock()
+	if err != nil {
+		return err
+	}
+
 	err = file.Save()
 	if err != nil {
 		return err

cmd/kaspawallet/daemon/server/server.go

@@ -77,6 +77,11 @@ func Start(params *dagconfig.Params, listen, rpcServer string, keysFilePath stri
 		return (errors.Wrapf(err, "Error reading keys file %s", keysFilePath))
 	}
 
+	err = keysFile.TryLock()
+	if err != nil {
+		return err
+	}
+
 	serverInstance := &server{
 		rpcClient:                   rpcClient,
 		params:                      params,

cmd/kaspawallet/keys/keys.go

@@ -6,6 +6,7 @@ import (
 	"encoding/hex"
 	"encoding/json"
 	"fmt"
+	"github.com/gofrs/flock"
 	"os"
 	"path/filepath"
 	"runtime"
@@ -400,3 +401,28 @@ func decryptMnemonic(numThreads uint8, encryptedPrivateKey *EncryptedMnemonic, p
 
 	return string(decrypted), nil
 }
+
+// flockMap is a map that holds all lock file handlers. This map guarantees that
+// the associated locked file handler will never get cleaned by the GC, because
+// once they are cleaned the associated file will be unlocked.
+var flockMap = make(map[string]*flock.Flock)
+
+// TryLock tries to acquire an exclusive lock for the file.
+func (d *File) TryLock() error {
+	if _, ok := flockMap[d.path]; ok {
+		return errors.Errorf("file %s is already locked", d.path)
+	}
+
+	lockFile := flock.New(d.path + ".lock")
+	flockMap[d.path] = lockFile
+
+	success, err := lockFile.TryLock()
+	if err != nil {
+		return err
+	}
+
+	if !success {
+		return errors.Errorf("%s is locked and cannot be used. Make sure that no other active wallet command is using it.", d.path)
+	}
+	return nil
+}

cmd/kaspawallet/send.go

@@ -3,6 +3,8 @@ package main
 import (
 	"context"
 	"fmt"
+	"os"
+	"strings"
 
 	"github.com/kaspanet/kaspad/cmd/kaspawallet/daemon/client"
 	"github.com/kaspanet/kaspad/cmd/kaspawallet/daemon/pb"
@@ -49,6 +51,10 @@ func send(conf *sendConfig) error {
 	}
 	mnemonics, err := keysFile.DecryptMnemonics(conf.Password)
 	if err != nil {
+		if strings.Contains(err.Error(), "message authentication failed") {
+			fmt.Fprintf(os.Stderr, "Password decryption failed. Sometimes this is a result of not "+
+				"specifying the same keys file used by the wallet daemon process.\n")
+		}
 		return err
 	}
 

domain/consensus/factory.go

@@ -216,6 +216,8 @@ func (f *factory) NewConsensus(config *Config, db infrastructuredatabase.Databas
 	transactionValidator := transactionvalidator.New(config.BlockCoinbaseMaturity,
 		config.EnableNonNativeSubnetworks,
 		config.MaxCoinbasePayloadLength,
+		config.K,
+		config.CoinbasePayloadScriptPublicKeyMaxLength,
 		dbManager,
 		pastMedianTimeManager,
 		ghostdagDataStore,
@@ -237,12 +239,14 @@ func (f *factory) NewConsensus(config *Config, db infrastructuredatabase.Databas
 		config.GenesisBlock.Header.Bits())
 	coinbaseManager := coinbasemanager.New(
 		dbManager,
+
 		config.SubsidyGenesisReward,
 		config.PreDeflationaryPhaseBaseSubsidy,
 		config.CoinbasePayloadScriptPublicKeyMaxLength,
 		config.GenesisHash,
 		config.DeflationaryPhaseDaaScore,
 		config.DeflationaryPhaseBaseSubsidy,
+
 		dagTraversalManager,
 		ghostdagDataStore,
 		acceptanceDataStore,

domain/consensus/processes/blockvalidator/block_body_in_isolation_test.go

@@ -169,10 +169,10 @@ var unOrderedParentsBlock = externalapi.DomainBlock{
 			}),
 		}},
 		externalapi.NewDomainHashFromByteArray(&[externalapi.DomainHashSize]byte{
-			0x31, 0x33, 0x37, 0x72, 0x5c, 0xde, 0x1c, 0xdf,
+			0x7e, 0xe2, 0x10, 0x4e, 0x21, 0x2f, 0x2a, 0xb1,
-			0xf5, 0x9f, 0xde, 0x16, 0x74, 0xbf, 0x0c, 0x64,
+			0x7d, 0x22, 0xf5, 0xe8, 0xa0, 0x98, 0xef, 0x53,
-			0x37, 0x40, 0x49, 0xdf, 0x02, 0x05, 0xca, 0x6d,
+			0x83, 0xae, 0x59, 0x1f, 0x83, 0xf3, 0x78, 0x5d,
-			0x52, 0x23, 0x6f, 0xc2, 0x2b, 0xec, 0xad, 0x42,
+			0x30, 0xae, 0x3e, 0xb3, 0x06, 0x08, 0x6f, 0x79,
 		}),
 		externalapi.NewDomainHashFromByteArray(&[externalapi.DomainHashSize]byte{
 			0x80, 0xf7, 0x00, 0xe3, 0x16, 0x3d, 0x04, 0x95,
@@ -202,20 +202,7 @@ var unOrderedParentsBlock = externalapi.DomainBlock{
 	Transactions: []*externalapi.DomainTransaction{
 		{
 			Version: 0,
-			Inputs: []*externalapi.DomainTransactionInput{
+			Inputs:  nil,
-				{
-					PreviousOutpoint: externalapi.DomainOutpoint{
-						TransactionID: *externalapi.NewDomainTransactionIDFromByteArray(&[externalapi.DomainHashSize]byte{}),
-						Index:         0xffffffff,
-					},
-					SignatureScript: []byte{
-						0x02, 0x10, 0x27, 0x08, 0xac, 0x29, 0x2f, 0x2f,
-						0xcf, 0x70, 0xb0, 0x7e, 0x0b, 0x2f, 0x50, 0x32,
-						0x53, 0x48, 0x2f, 0x62, 0x74, 0x63, 0x64, 0x2f,
-					},
-					Sequence: math.MaxUint64,
-				},
-			},
 			Outputs: []*externalapi.DomainTransactionOutput{
 				{
 					Value: 0x12a05f200, // 5000000000
@@ -446,10 +433,10 @@ var exampleValidBlock = externalapi.DomainBlock{
 			}),
 		}},
 		externalapi.NewDomainHashFromByteArray(&[externalapi.DomainHashSize]byte{
-			0x86, 0x8b, 0x73, 0xcd, 0x20, 0x51, 0x23, 0x60,
+			0x46, 0xec, 0xf4, 0x5b, 0xe3, 0xba, 0xca, 0x34,
-			0xea, 0x62, 0x99, 0x9b, 0x87, 0xf6, 0xdd, 0x8d,
+			0x9d, 0xfe, 0x8a, 0x78, 0xde, 0xaf, 0x05, 0x3b,
-			0xa4, 0x0b, 0xd7, 0xcf, 0xc6, 0x32, 0x38, 0xee,
+			0x0a, 0xa6, 0xd5, 0x38, 0x97, 0x4d, 0xa5, 0x0f,
-			0xd9, 0x68, 0x72, 0x1f, 0xa2, 0x51, 0xe4, 0x28,
+			0xd6, 0xef, 0xb4, 0xd2, 0x66, 0xbc, 0x8d, 0x21,
 		}),
 		externalapi.NewDomainHashFromByteArray(&[externalapi.DomainHashSize]byte{
 			0x8a, 0xb7, 0xd6, 0x73, 0x1b, 0xe6, 0xc5, 0xd3,
@@ -474,21 +461,7 @@ var exampleValidBlock = externalapi.DomainBlock{
 	Transactions: []*externalapi.DomainTransaction{
 		{
 			Version: 0,
-			Inputs: []*externalapi.DomainTransactionInput{
+			Inputs:  nil,
-				{
-					PreviousOutpoint: externalapi.DomainOutpoint{
-						TransactionID: *externalapi.NewDomainTransactionIDFromByteArray(&[externalapi.DomainHashSize]byte{
-							0x9b, 0x22, 0x59, 0x44, 0x66, 0xf0, 0xbe, 0x50,
-							0x7c, 0x1c, 0x8a, 0xf6, 0x06, 0x27, 0xe6, 0x33,
-							0x38, 0x7e, 0xd1, 0xd5, 0x8c, 0x42, 0x59, 0x1a,
-							0x31, 0xac, 0x9a, 0xa6, 0x2e, 0xd5, 0x2b, 0x0f,
-						}),
-						Index: 0xffffffff,
-					},
-					SignatureScript: nil,
-					Sequence:        math.MaxUint64,
-				},
-			},
 			Outputs: []*externalapi.DomainTransactionOutput{
 				{
 					Value: 0x12a05f200, // 5000000000
@@ -751,10 +724,10 @@ var blockWithWrongTxOrder = externalapi.DomainBlock{
 			}),
 		}},
 		externalapi.NewDomainHashFromByteArray(&[externalapi.DomainHashSize]byte{
-			0x7b, 0x25, 0x8b, 0xfa, 0xfb, 0x49, 0xe4, 0x94,
+			0xd5, 0xd2, 0x32, 0xe4, 0xbe, 0x9c, 0x33, 0xbd,
-			0x48, 0x2c, 0xf9, 0x74, 0xdd, 0xad, 0x9d, 0x6f,
+			0xf1, 0x0a, 0xd2, 0x9d, 0x0c, 0xbd, 0xe5, 0xae,
-			0x98, 0x8f, 0xfb, 0x01, 0x9d, 0x49, 0x29, 0xbe,
+			0xcb, 0x1a, 0xf9, 0x5a, 0x3e, 0xfb, 0xf3, 0xc7,
-			0x3c, 0xec, 0x90, 0xfe, 0xa5, 0x0c, 0xaf, 0x6b,
+			0x2b, 0x4d, 0x10, 0xa6, 0xbd, 0x5f, 0x07, 0xe7,
 		}),
 		externalapi.NewDomainHashFromByteArray(&[externalapi.DomainHashSize]byte{
 			0xa0, 0x69, 0x2d, 0x16, 0xb5, 0xd7, 0xe4, 0xf3,

domain/consensus/processes/coinbasemanager/coinbasemanager_external_test.go

@@ -0,0 +1,57 @@
+package coinbasemanager_test
+
+import (
+	"github.com/kaspanet/kaspad/domain/consensus"
+	"github.com/kaspanet/kaspad/domain/consensus/model"
+	"github.com/kaspanet/kaspad/domain/consensus/model/externalapi"
+	"github.com/kaspanet/kaspad/domain/consensus/utils/testutils"
+	"testing"
+)
+
+func TestExtractCoinbaseDataBlueScoreAndSubsidy(t *testing.T) {
+	testutils.ForAllNets(t, true, func(t *testing.T, consensusConfig *consensus.Config) {
+		factory := consensus.NewFactory()
+		tc, teardown, err := factory.NewTestConsensus(consensusConfig, "TestBlockStatus")
+		if err != nil {
+			t.Fatalf("Error setting up consensus: %+v", err)
+		}
+		defer teardown(false)
+
+		tests := []struct {
+			name                   string
+			scriptPublicKeyVersion uint16
+		}{
+			{
+				name:                   "below 255",
+				scriptPublicKeyVersion: 100,
+			},
+			{
+				name:                   "above 255",
+				scriptPublicKeyVersion: 300,
+			},
+		}
+
+		for _, test := range tests {
+			coinbaseTx, _, err := tc.CoinbaseManager().ExpectedCoinbaseTransaction(model.NewStagingArea(), model.VirtualBlockHash, &externalapi.DomainCoinbaseData{
+				ScriptPublicKey: &externalapi.ScriptPublicKey{
+					Script:  nil,
+					Version: test.scriptPublicKeyVersion,
+				},
+				ExtraData: nil,
+			})
+			if err != nil {
+				t.Fatal(err)
+			}
+
+			_, cbData, _, err := tc.CoinbaseManager().ExtractCoinbaseDataBlueScoreAndSubsidy(coinbaseTx)
+			if err != nil {
+				t.Fatal(err)
+			}
+
+			if cbData.ScriptPublicKey.Version != test.scriptPublicKeyVersion {
+				t.Fatalf("test %s post HF expected %d but got %d", test.name, test.scriptPublicKeyVersion, cbData.ScriptPublicKey.Version)
+			}
+		}
+
+	})
+}

domain/consensus/processes/coinbasemanager/payload.go

@@ -28,7 +28,7 @@ func (c *coinbaseManager) serializeCoinbasePayload(blueScore uint64,
 	binary.LittleEndian.PutUint64(payload[:uint64Len], blueScore)
 	binary.LittleEndian.PutUint64(payload[uint64Len:], subsidy)
 
-	payload[uint64Len+lengthOfSubsidy] = uint8(coinbaseData.ScriptPublicKey.Version)
+	binary.LittleEndian.PutUint16(payload[uint64Len+lengthOfSubsidy:], coinbaseData.ScriptPublicKey.Version)
 	payload[uint64Len+lengthOfSubsidy+lengthOfVersionScriptPubKey] = uint8(len(coinbaseData.ScriptPublicKey.Script))
 	copy(payload[uint64Len+lengthOfSubsidy+lengthOfVersionScriptPubKey+lengthOfScriptPubKeyLength:], coinbaseData.ScriptPublicKey.Script)
 	copy(payload[uint64Len+lengthOfSubsidy+lengthOfVersionScriptPubKey+lengthOfScriptPubKeyLength+scriptLengthOfScriptPubKey:], coinbaseData.ExtraData)
@@ -52,7 +52,7 @@ func ModifyCoinbasePayload(payload []byte, coinbaseData *externalapi.DomainCoinb
 		payload = newPayload
 	}
 
-	payload[uint64Len+lengthOfSubsidy] = uint8(coinbaseData.ScriptPublicKey.Version)
+	binary.LittleEndian.PutUint16(payload[uint64Len+lengthOfSubsidy:uint64Len+lengthOfSubsidy+lengthOfVersionScriptPubKey], coinbaseData.ScriptPublicKey.Version)
 	payload[uint64Len+lengthOfSubsidy+lengthOfVersionScriptPubKey] = uint8(len(coinbaseData.ScriptPublicKey.Script))
 	copy(payload[uint64Len+lengthOfSubsidy+lengthOfVersionScriptPubKey+lengthOfScriptPubKeyLength:], coinbaseData.ScriptPublicKey.Script)
 	copy(payload[uint64Len+lengthOfSubsidy+lengthOfVersionScriptPubKey+lengthOfScriptPubKeyLength+scriptLengthOfScriptPubKey:], coinbaseData.ExtraData)
@@ -73,7 +73,8 @@ func (c *coinbaseManager) ExtractCoinbaseDataBlueScoreAndSubsidy(coinbaseTx *ext
 	blueScore = binary.LittleEndian.Uint64(coinbaseTx.Payload[:uint64Len])
 	subsidy = binary.LittleEndian.Uint64(coinbaseTx.Payload[uint64Len:])
 
-	scriptPubKeyVersion := uint16(coinbaseTx.Payload[uint64Len+lengthOfSubsidy])
+	scriptPubKeyVersion := binary.LittleEndian.Uint16(coinbaseTx.Payload[uint64Len+lengthOfSubsidy : uint64Len+lengthOfSubsidy+uint16Len])
+
 	scriptPubKeyScriptLength := coinbaseTx.Payload[uint64Len+lengthOfSubsidy+lengthOfVersionScriptPubKey]
 
 	if scriptPubKeyScriptLength > c.coinbasePayloadScriptPublicKeyMaxLength {

domain/consensus/processes/consensusstatemanager/consensus_state_manager.go

@@ -72,6 +72,7 @@ func New(
 		maxBlockParents:   maxBlockParents,
 		mergeSetSizeLimit: mergeSetSizeLimit,
 		genesisHash:       genesisHash,
+
 		databaseContext: databaseContext,
 
 		ghostdagManager:       ghostdagManager,

domain/consensus/processes/transactionvalidator/transaction_in_context.go

@@ -350,6 +350,7 @@ func (v *transactionValidator) validateTransactionSigOpCounts(tx *externalapi.Do
 		sigScript := input.SignatureScript
 		isP2SH := txscript.IsPayToScriptHash(utxoEntry.ScriptPublicKey())
 		sigOpCount := txscript.GetPreciseSigOpCount(sigScript, utxoEntry.ScriptPublicKey(), isP2SH)
+
 		if sigOpCount != int(input.SigOpCount) {
 			return errors.Wrapf(ruleerrors.ErrWrongSigOpCount,
 				"input %d specifies SigOpCount %d while actual SigOpCount is %d",

domain/consensus/processes/transactionvalidator/transaction_in_isolation.go

@@ -23,7 +23,7 @@ func (v *transactionValidator) ValidateTransactionInIsolation(tx *externalapi.Do
 	if err != nil {
 		return err
 	}
-	err = v.checkCoinbaseLength(tx)
+	err = v.checkCoinbaseInIsolation(tx)
 	if err != nil {
 		return err
 	}
@@ -114,7 +114,7 @@ func (v *transactionValidator) checkDuplicateTransactionInputs(tx *externalapi.D
 	return nil
 }
 
-func (v *transactionValidator) checkCoinbaseLength(tx *externalapi.DomainTransaction) error {
+func (v *transactionValidator) checkCoinbaseInIsolation(tx *externalapi.DomainTransaction) error {
 	if !transactionhelper.IsCoinBase(tx) {
 		return nil
 	}
@@ -127,6 +127,22 @@ func (v *transactionValidator) checkCoinbaseLength(tx *externalapi.DomainTransac
 			payloadLen, v.maxCoinbasePayloadLength)
 	}
 
+	if len(tx.Inputs) != 0 {
+		return errors.Wrap(ruleerrors.ErrCoinbaseWithInputs, "coinbase has inputs")
+	}
+
+	outputsLimit := uint64(v.ghostdagK) + 2
+	if uint64(len(tx.Outputs)) > outputsLimit {
+		return errors.Wrapf(ruleerrors.ErrCoinbaseTooManyOutputs, "coinbase has too many outputs: got %d where the limit is %d", len(tx.Outputs), outputsLimit)
+	}
+
+	for i, output := range tx.Outputs {
+		if len(output.ScriptPublicKey.Script) > int(v.coinbasePayloadScriptPublicKeyMaxLength) {
+			return errors.Wrapf(ruleerrors.ErrCoinbaseTooLongScriptPublicKey, "coinbase output %d has a too long script public key", i)
+
+		}
+	}
+
 	return nil
 }
 

domain/consensus/processes/transactionvalidator/transaction_in_isolation_test.go

@@ -76,7 +76,7 @@ func TestValidateTransactionInIsolationAndPopulateMass(t *testing.T) {
 				subnetworks.SubnetworkIDNative,
 				&txSubnetworkData{subnetworks.SubnetworkIDCoinbase, 0, nil},
 				nil,
-				nil, 0},
+				ruleerrors.ErrCoinbaseWithInputs, 0},
 			{"no inputs coinbase",
 				0,
 				1,

domain/consensus/processes/transactionvalidator/transactionvalidator.go

@@ -2,6 +2,7 @@ package transactionvalidator
 
 import (
 	"github.com/kaspanet/kaspad/domain/consensus/model"
+	"github.com/kaspanet/kaspad/domain/consensus/model/externalapi"
 	"github.com/kaspanet/kaspad/domain/consensus/utils/txscript"
 	"github.com/kaspanet/kaspad/util/txmass"
 )
@@ -18,6 +19,8 @@ type transactionValidator struct {
 	daaBlocksStore                          model.DAABlocksStore
 	enableNonNativeSubnetworks              bool
 	maxCoinbasePayloadLength                uint64
+	ghostdagK                               externalapi.KType
+	coinbasePayloadScriptPublicKeyMaxLength uint8
 	sigCache                                *txscript.SigCache
 	sigCacheECDSA                           *txscript.SigCacheECDSA
 	txMassCalculator                        *txmass.Calculator
@@ -27,6 +30,8 @@ type transactionValidator struct {
 func New(blockCoinbaseMaturity uint64,
 	enableNonNativeSubnetworks bool,
 	maxCoinbasePayloadLength uint64,
+	ghostdagK externalapi.KType,
+	coinbasePayloadScriptPublicKeyMaxLength uint8,
 	databaseContext model.DBReader,
 	pastMedianTimeManager model.PastMedianTimeManager,
 	ghostdagDataStore model.GHOSTDAGDataStore,
@@ -37,6 +42,8 @@ func New(blockCoinbaseMaturity uint64,
 		blockCoinbaseMaturity:                   blockCoinbaseMaturity,
 		enableNonNativeSubnetworks:              enableNonNativeSubnetworks,
 		maxCoinbasePayloadLength:                maxCoinbasePayloadLength,
+		ghostdagK:                               ghostdagK,
+		coinbasePayloadScriptPublicKeyMaxLength: coinbasePayloadScriptPublicKeyMaxLength,
 		databaseContext:                         databaseContext,
 		pastMedianTimeManager:                   pastMedianTimeManager,
 		ghostdagDataStore:                       ghostdagDataStore,

domain/consensus/processes/transactionvalidator/transactionvalidator_test.go

@@ -109,18 +109,6 @@ func TestValidateTransactionInContextAndPopulateFee(t *testing.T) {
 				0),
 		}
 
-		txInputWithBadSigOpCount := externalapi.DomainTransactionInput{
-			PreviousOutpoint: prevOutPoint,
-			SignatureScript:  []byte{},
-			Sequence:         constants.MaxTxInSequenceNum,
-			SigOpCount:       2,
-			UTXOEntry: utxo.NewUTXOEntry(
-				100_000_000, // 1 KAS
-				scriptPublicKey,
-				true,
-				uint64(5)),
-		}
-
 		txOutput := externalapi.DomainTransactionOutput{
 			Value:           100000000, // 1 KAS
 			ScriptPublicKey: scriptPublicKey,
@@ -193,13 +181,6 @@ func TestValidateTransactionInContextAndPopulateFee(t *testing.T) {
 			SubnetworkID: subnetworks.SubnetworkIDRegistry,
 			Gas:          0,
 			LockTime:     0}
-		txWithBadSigOpCount := externalapi.DomainTransaction{
-			Version:      constants.MaxTransactionVersion,
-			Inputs:       []*externalapi.DomainTransactionInput{&txInputWithBadSigOpCount},
-			Outputs:      []*externalapi.DomainTransactionOutput{&txOutput},
-			SubnetworkID: subnetworks.SubnetworkIDRegistry,
-			Gas:          0,
-			LockTime:     0}
 
 		stagingArea := model.NewStagingArea()
 
@@ -266,13 +247,6 @@ func TestValidateTransactionInContextAndPopulateFee(t *testing.T) {
 				isValid:       false,
 				expectedError: ruleerrors.ErrScriptValidation,
 			},
-			{ // the SigOpCount in the input is wrong, and hence invalid
-				name:          "checkTransactionSigOpCounts",
-				tx:            &txWithBadSigOpCount,
-				povBlockHash:  povBlockHash,
-				isValid:       false,
-				expectedError: ruleerrors.ErrWrongSigOpCount,
-			},
 		}
 
 		for _, test := range tests {

domain/consensus/ruleerrors/rule_error.go

@@ -241,6 +241,9 @@ var (
 	ErrPruningProofEmpty                              = newRuleError("ErrPruningProofEmpty")
 	ErrWrongCoinbaseSubsidy                           = newRuleError("ErrWrongCoinbaseSubsidy")
 	ErrWrongBlockVersion                              = newRuleError("ErrWrongBlockVersion")
+	ErrCoinbaseWithInputs                             = newRuleError("ErrCoinbaseWithInputs")
+	ErrCoinbaseTooManyOutputs                         = newRuleError("ErrCoinbaseTooManyOutputs")
+	ErrCoinbaseTooLongScriptPublicKey                 = newRuleError("ErrCoinbaseTooLongScriptPublicKey")
 )
 
 // RuleError identifies a rule violation. It is used to indicate that

domain/consensus/utils/consensushashing/transaction.go

@@ -139,13 +139,21 @@ func writeTransactionInput(w io.Writer, ti *externalapi.DomainTransactionInput,
 
 	if encodingFlags&txEncodingExcludeSignatureScript != txEncodingExcludeSignatureScript {
 		err = writeVarBytes(w, ti.SignatureScript)
-	} else {
-		err = writeVarBytes(w, []byte{})
-	}
 		if err != nil {
 			return err
 		}
 
+		_, err = w.Write([]byte{ti.SigOpCount})
+		if err != nil {
+			return err
+		}
+	} else {
+		err = writeVarBytes(w, []byte{})
+		if err != nil {
+			return err
+		}
+	}
+
 	return binaryserializer.PutUint64(w, ti.Sequence)
 }
 

domain/dagconfig/params.go

@@ -297,7 +297,11 @@ var TestnetParams = Params{
 	Net:         appmessage.Testnet,
 	RPCPort:     "16210",
 	DefaultPort: "16211",
-	DNSSeeds:    []string{"testnet-10-dnsseed.kas.pa"},
+	DNSSeeds: []string{
+		"testnet-10-dnsseed.kas.pa",
+		// This DNS seeder is run by Tiram
+		"seeder1-testnet.kaspad.net",
+	},
 
 	// DAG parameters
 	GenesisBlock:                    &testnetGenesisBlock,

go.mod

@@ -9,6 +9,7 @@ require (
 	github.com/btcsuite/go-socks v0.0.0-20170105172521-4720035b7bfd
 	github.com/btcsuite/winsvc v1.0.0
 	github.com/davecgh/go-spew v1.1.1
+	github.com/gofrs/flock v0.8.1
 	github.com/golang/protobuf v1.5.2
 	github.com/jessevdk/go-flags v1.4.0
 	github.com/jrick/logrotate v1.0.0
@@ -30,6 +31,5 @@ require (
 	golang.org/x/sys v0.0.0-20211019181941-9d821ace8654 // indirect
 	golang.org/x/text v0.3.5 // indirect
 	google.golang.org/genproto v0.0.0-20210604141403-392c879c8b08 // indirect
-	google.golang.org/grpc/cmd/protoc-gen-go-grpc v1.2.0 // indirect
 	gopkg.in/yaml.v2 v2.3.0 // indirect
 )

go.sum

@@ -26,6 +26,8 @@ github.com/envoyproxy/go-control-plane v0.9.1-0.20191026205805-5f8ba28d4473/go.m
 github.com/envoyproxy/go-control-plane v0.9.9-0.20210217033140-668b12f5399d/go.mod h1:cXg6YxExXjJnVBQHBLXeUAgxn2UodCpnH306RInaBQk=
 github.com/envoyproxy/protoc-gen-validate v0.1.0/go.mod h1:iSmxcyjqTsJpI2R4NaDN7+kN2VEUnK/pcBlmesArF7c=
 github.com/fsnotify/fsnotify v1.4.7/go.mod h1:jwhsz4b93w/PPRr/qN1Yymfu8t87LnFCMoQvtojpjFo=
+github.com/gofrs/flock v0.8.1 h1:+gYjHKf32LDeiEEFhQaotPbLuUXjY5ZqxKgXy7n59aw=
+github.com/gofrs/flock v0.8.1/go.mod h1:F1TvTiK9OcQqauNUHlbJvyl9Qa1QvF/gOUDKA14jxHU=
 github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b/go.mod h1:SBH7ygxi8pfUlaOkMMuAQtPIUF8ecWP5IEl/CR7VP2Q=
 github.com/golang/mock v1.1.1/go.mod h1:oTYuIxOrZwtPieC+H1uAHpcLFnEyAGVDL/k47Jfbm0A=
 github.com/golang/protobuf v1.2.0/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
@@ -118,8 +120,6 @@ golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7w
 golang.org/x/sys v0.0.0-20210320140829-1e4c9ba3b0c4/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210330210617-4fbd30eecc44/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210510120138-977fb7262007/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.0.0-20210525143221-35b2ab0089ea h1:+WiDlPBBaO+h9vPNZi8uJ3k4BkKQB7Iow3aqwHVA5hI=
-golang.org/x/sys v0.0.0-20210525143221-35b2ab0089ea/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20211019181941-9d821ace8654 h1:id054HUawV2/6IGm2IV8KZQjqtwAOo2CYlOToYqa0d0=
 golang.org/x/sys v0.0.0-20211019181941-9d821ace8654/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
@@ -155,8 +155,6 @@ google.golang.org/grpc v1.25.1/go.mod h1:c3i+UQWmh7LiEpx4sFZnkU36qjEYZ0imhYfXVyQ
 google.golang.org/grpc v1.27.0/go.mod h1:qbnxyOmOxrQa7FizSgH+ReBfzJrCY1pSN7KXBS8abTk=
 google.golang.org/grpc v1.38.0 h1:/9BgsAsa5nWe26HqOlvlgJnqBuktYOLCgjCPqsa56W0=
 google.golang.org/grpc v1.38.0/go.mod h1:NREThFqKR1f3iQ6oBuvc5LadQuXVGo9rkm5ZGrQdJfM=
-google.golang.org/grpc/cmd/protoc-gen-go-grpc v1.2.0 h1:TLkBREm4nIsEcexnCjgQd5GQWaHcqMzwQV0TX9pq8S0=
-google.golang.org/grpc/cmd/protoc-gen-go-grpc v1.2.0/go.mod h1:DNq5QpG7LJqD2AamLZ7zvKE0DEpVl2BSEVjFycAAjRY=
 google.golang.org/protobuf v0.0.0-20200109180630-ec00e32a8dfd/go.mod h1:DFci5gLYBciE7Vtevhsrf46CRTquxDuWsQurQQe4oz8=
 google.golang.org/protobuf v0.0.0-20200221191635-4d8936d0db64/go.mod h1:kwYJMbMJ01Woi6D6+Kah6886xMZcty6N08ah7+eCXa0=
 google.golang.org/protobuf v0.0.0-20200228230310-ab0ca4ff8a60/go.mod h1:cfTl7dwQJ+fmap5saPgwCLgHXTUD7jkjRqWcaiX5VyM=
@@ -167,12 +165,10 @@ google.golang.org/protobuf v1.23.0/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2
 google.golang.org/protobuf v1.23.1-0.20200526195155-81db48ad09cc/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2l/sGQquU=
 google.golang.org/protobuf v1.25.0/go.mod h1:9JNX74DMeImyA3h4bdi1ymwjUzf21/xIlbajtzgsN7c=
 google.golang.org/protobuf v1.26.0-rc.1/go.mod h1:jlhhOSvTdKEhbULTjvd4ARK9grFBp09yW+WbY/TyQbw=
-google.golang.org/protobuf v1.26.0 h1:bxAC2xTBsZGibn2RTntX0oH50xLsqy1OxA9tTL3p/lk=
 google.golang.org/protobuf v1.26.0/go.mod h1:9q0QmTI4eRPtz6boOQmLYwt+qCgq0jsYwAQnmE0givc=
-google.golang.org/protobuf v1.27.1 h1:SnqbnDw1V7RiZcXPx5MEeqPv2s79L9i7BJUlG/+RurQ=
-google.golang.org/protobuf v1.27.1/go.mod h1:9q0QmTI4eRPtz6boOQmLYwt+qCgq0jsYwAQnmE0givc=
 google.golang.org/protobuf v1.28.1 h1:d0NfwRgPtno5B1Wa6L2DAG+KivqkdutMf1UhdNx175w=
 google.golang.org/protobuf v1.28.1/go.mod h1:HV8QOd/L58Z+nl8r43ehVNZIU/HEI6OcFqwMG9pJV4I=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/fsnotify.v1 v1.4.7 h1:xOHLXZwVvI9hhs+cLKq5+I5onOuwQLhQwiu63xxlHs4=
 gopkg.in/fsnotify.v1 v1.4.7/go.mod h1:Tz8NjZHkW78fSQdbUxIjBTcgA1z1m8ZHf0WmKUhAMys=

infrastructure/network/netadapter/server/grpcserver/connection_loops.go

@@ -2,8 +2,12 @@ package grpcserver
 
 import (
 	"github.com/davecgh/go-spew/spew"
+	"github.com/kaspanet/kaspad/app/appmessage"
 	"github.com/kaspanet/kaspad/infrastructure/logger"
 	"io"
+	"os"
+	"strconv"
+	"sync"
 	"time"
 
 	routerpkg "github.com/kaspanet/kaspad/infrastructure/network/netadapter/router"
@@ -25,6 +29,9 @@ func (c *gRPCConnection) connectionLoops() error {
 	return err
 }
 
+var blockDelayOnce sync.Once
+var blockDelay = 0
+
 func (c *gRPCConnection) sendLoop() error {
 	outgoingRoute := c.router.OutgoingRoute()
 	for c.IsConnected() {
@@ -36,6 +43,20 @@ func (c *gRPCConnection) sendLoop() error {
 			return err
 		}
 
+		blockDelayOnce.Do(func() {
+			experimentalDelayEnv := os.Getenv("KASPA_EXPERIMENTAL_DELAY")
+			if experimentalDelayEnv != "" {
+				blockDelay, err = strconv.Atoi(experimentalDelayEnv)
+				if err != nil {
+					panic(err)
+				}
+			}
+		})
+
+		if blockDelay != 0 && message.Command() == appmessage.CmdBlock {
+			time.Sleep(time.Duration(blockDelay) * time.Second)
+		}
+
 		log.Debugf("outgoing '%s' message to %s", message.Command(), c)
 		log.Tracef("outgoing '%s' message to %s: %s", message.Command(), c, logger.NewLogClosure(func() string {
 			return spew.Sdump(message)

infrastructure/network/netadapter/server/grpcserver/protowire/rpc_get_connected_peer_info.go

@@ -35,7 +35,7 @@ func (x *KaspadMessage_GetConnectedPeerInfoResponse) fromAppMessage(message *app
 			TimeOffset:                info.TimeOffset,
 			UserAgent:                 info.UserAgent,
 			AdvertisedProtocolVersion: info.AdvertisedProtocolVersion,
-			TimeConnected:             info.TimeOffset,
+			TimeConnected:             info.TimeConnected,
 			IsIbdPeer:                 info.IsIBDPeer,
 		}
 	}

infrastructure/network/rpcclient/rpcclient.go

@@ -72,7 +72,7 @@ func (c *RPCClient) connect() error {
 	remoteVersion := getInfoResponse.ServerVersion
 
 	if localVersion != remoteVersion {
-		return errors.Errorf("Server version mismatch, expect: %s, got: %s", localVersion, remoteVersion)
+		log.Warnf("version mismatch, client: %s, server: %s - expected responses and requests may deviate", localVersion, remoteVersion)
 	}
 
 	return nil

version/version.go

@@ -11,7 +11,7 @@ const validCharacters = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrs
 const (
 	appMajor uint = 0
 	appMinor uint = 12
-	appPatch uint = 6
+	appPatch uint = 8
 )
 
 // appBuild is defined as a variable so it can be overridden during the build