config: make MaxValidUntilBlockIncrement configurable

pkg/config/protocol_config.go

@@ -26,6 +26,10 @@ type (
 		MaxTraceableBlocks uint32 `yaml:"MaxTraceableBlocks"`
 		// MaxTransactionsPerBlock is the maximum amount of transactions per block.
 		MaxTransactionsPerBlock uint16 `yaml:"MaxTransactionsPerBlock"`
+		// MaxValidUntilBlockIncrement is the upper increment size of blockchain height in blocks
+		// exceeding that a transaction should fail validation. It is set to estimated daily number
+		// of blocks with 15s interval.
+		MaxValidUntilBlockIncrement uint32 `yaml:"MaxValidUntilBlockIncrement"`
 		// NativeUpdateHistories is the list of histories of native contracts updates.
 		NativeUpdateHistories map[string][]uint32 `yaml:"NativeActivations"`
 		// P2PSigExtensions enables additional signature-related logic.

pkg/core/blockchain.go

@@ -190,6 +190,13 @@ func NewBlockchain(s storage.Store, cfg config.ProtocolConfiguration, log *zap.L
 		log.Info("MaxTransactionsPerBlock is not set or wrong, using default value",
 			zap.Uint16("MaxTransactionsPerBlock", cfg.MaxTransactionsPerBlock))
 	}
+	if cfg.MaxValidUntilBlockIncrement == 0 {
+		const secondsPerDay = int(24 * time.Hour / time.Second)
+
+		cfg.MaxValidUntilBlockIncrement = uint32(secondsPerDay / cfg.SecondsPerBlock)
+		log.Info("MaxValidUntilBlockIncrement is not set or wrong, using default value",
+			zap.Uint32("MaxValidUntilBlockIncrement", cfg.MaxValidUntilBlockIncrement))
+	}
 	committee, err := committeeFromConfig(cfg)
 	if err != nil {
 		return nil, err
@@ -1426,7 +1433,7 @@ func (bc *Blockchain) verifyAndPoolTx(t *transaction.Transaction, pool *mempool.
 
 	height := bc.BlockHeight()
 	isPartialTx := data != nil
-	if t.ValidUntilBlock <= height || !isPartialTx && t.ValidUntilBlock > height+transaction.MaxValidUntilBlockIncrement {
+	if t.ValidUntilBlock <= height || !isPartialTx && t.ValidUntilBlock > height+bc.config.MaxValidUntilBlockIncrement {
 		return fmt.Errorf("%w: ValidUntilBlock = %d, current height = %d", ErrTxExpired, t.ValidUntilBlock, height)
 	}
 	// Policying.

pkg/core/helper_test.go

@@ -210,7 +210,7 @@ func TestCreateBasicChain(t *testing.T) {
 
 	// Prepare some transaction for future submission.
 	txSendRaw := newNEP17Transfer(bc.contracts.NEO.Hash, priv0ScriptHash, priv1.GetScriptHash(), int64(fixedn.Fixed8FromInt64(1000)))
-	txSendRaw.ValidUntilBlock = transaction.MaxValidUntilBlockIncrement
+	txSendRaw.ValidUntilBlock = bc.config.MaxValidUntilBlockIncrement
 	txSendRaw.Nonce = 0x1234
 	txSendRaw.Signers = []transaction.Signer{{
 		Account:          priv0ScriptHash,

pkg/core/native/notary.go

@@ -392,8 +392,9 @@ func (n *Notary) GetMaxNotValidBeforeDelta(dao dao.DAO) uint32 {
 // setMaxNotValidBeforeDelta is Notary contract method and sets the maximum NotValidBefore delta.
 func (n *Notary) setMaxNotValidBeforeDelta(ic *interop.Context, args []stackitem.Item) stackitem.Item {
 	value := toUint32(args[0])
-	if value > transaction.MaxValidUntilBlockIncrement/2 || value < uint32(ic.Chain.GetConfig().ValidatorsCount) {
-		panic(fmt.Errorf("MaxNotValidBeforeDelta cannot be more than %d or less than %d", transaction.MaxValidUntilBlockIncrement/2, ic.Chain.GetConfig().ValidatorsCount))
+	maxInc := ic.Chain.GetConfig().MaxValidUntilBlockIncrement
+	if value > maxInc/2 || value < uint32(ic.Chain.GetConfig().ValidatorsCount) {
+		panic(fmt.Errorf("MaxNotValidBeforeDelta cannot be more than %d or less than %d", maxInc/2, ic.Chain.GetConfig().ValidatorsCount))
 	}
 	if !n.NEO.checkCommittee(ic) {
 		panic("invalid committee signature")

pkg/core/native_notary_test.go

@@ -326,5 +326,5 @@ func TestMaxNotValidBeforeDelta(t *testing.T) {
 	chain := newTestChain(t)
 
 	testGetSet(t, chain, chain.contracts.Notary.Hash, "MaxNotValidBeforeDelta",
-		140, int64(chain.GetConfig().ValidatorsCount), transaction.MaxValidUntilBlockIncrement/2)
+		140, int64(chain.GetConfig().ValidatorsCount), int64(chain.config.MaxValidUntilBlockIncrement/2))
 }

pkg/core/transaction/transaction.go

@@ -19,10 +19,6 @@ const (
 	// MaxTransactionSize is the upper limit size in bytes that a transaction can reach. It is
 	// set to be 102400.
 	MaxTransactionSize = 102400
-	// MaxValidUntilBlockIncrement is the upper increment size of blockhain height in blocks
-	// exceeding that a transaction should fail validation. It is set to estimated daily number
-	// of blocks with 15s interval.
-	MaxValidUntilBlockIncrement = 5760
 	// MaxAttributes is maximum number of attributes including signers that can be contained
 	// within a transaction. It is set to be 16.
 	MaxAttributes = 16

pkg/services/oracle/response.go

@@ -84,7 +84,7 @@ func readResponse(rc gio.ReadCloser, limit int) ([]byte, error) {
 func (o *Oracle) CreateResponseTx(gasForResponse int64, height uint32, resp *transaction.OracleResponse) (*transaction.Transaction, error) {
 	tx := transaction.New(o.oracleResponse, 0)
 	tx.Nonce = uint32(resp.ID)
-	tx.ValidUntilBlock = height + transaction.MaxValidUntilBlockIncrement
+	tx.ValidUntilBlock = height + o.Chain.GetConfig().MaxValidUntilBlockIncrement
 	tx.Attributes = []transaction.Attribute{{
 		Type:  transaction.OracleResponseT,
 		Value: resp,