fix[dtl]: fix dtl bug breaking verifiers (#1011)

* fix[dtl]: fix dtl bug breaking verifiers

* tweaks so tests pass

* chore: add changeset

.changeset/quick-pandas-laugh.md

+---
+'@eth-optimism/data-transport-layer': patch
+---
+
+Fixes a bug that prevented verifiers from syncing properly with the DTL

packages/data-transport-layer/src/services/l1-ingestion/handlers/sequencer-batch-appended.ts

@@ -20,6 +20,7 @@ import {
 import {
   SEQUENCER_ENTRYPOINT_ADDRESS,
   SEQUENCER_GAS_LIMIT,
+  parseSignatureVParam,
 } from '../../../utils'
 
 export const handleEventsSequencerBatchAppended: EventHandlerSet<
@@ -76,7 +77,7 @@ export const handleEventsSequencerBatchAppended: EventHandlerSet<
       batchExtraData: batchSubmissionEvent.args._extraData,
     }
   },
-  parseEvent: (event, extraData) => {
+  parseEvent: (event, extraData, l2ChainId) => {
     const transactionEntries: TransactionEntry[] = []
 
     // It's easier to deal with this data if it's a Buffer.
@@ -103,7 +104,8 @@ export const handleEventsSequencerBatchAppended: EventHandlerSet<
         )
 
         const decoded = maybeDecodeSequencerBatchTransaction(
-          sequencerTransaction
+          sequencerTransaction,
+          l2ChainId
         )
 
         transactionEntries.push({
@@ -234,7 +236,8 @@ const parseSequencerBatchTransaction = (
 }
 
 const maybeDecodeSequencerBatchTransaction = (
-  transaction: Buffer
+  transaction: Buffer,
+  l2ChainId: number
 ): DecodedSequencerBatchTransaction | null => {
   try {
     const decodedTx = ethers.utils.parseTransaction(transaction)
@@ -247,7 +250,7 @@ const maybeDecodeSequencerBatchTransaction = (
       target: toHexString(decodedTx.to), // Maybe null this out for creations?
       data: toHexString(decodedTx.data),
       sig: {
-        v: BigNumber.from(decodedTx.v).toNumber(),
+        v: parseSignatureVParam(decodedTx.v, l2ChainId),
         r: toHexString(decodedTx.r),
         s: toHexString(decodedTx.s),
       },

packages/data-transport-layer/src/services/l1-ingestion/service.ts

@@ -3,6 +3,7 @@ import { fromHexString, EventArgsAddressSet } from '@eth-optimism/core-utils'
 import { BaseService } from '@eth-optimism/common-ts'
 import { JsonRpcProvider } from '@ethersproject/providers'
 import { LevelUp } from 'levelup'
+import { ethers, constants } from 'ethers'
 
 /* Imports: Internal */
 import { TransportDB } from '../../db/transport-db'
@@ -18,7 +19,6 @@ import { handleEventsTransactionEnqueued } from './handlers/transaction-enqueued
 import { handleEventsSequencerBatchAppended } from './handlers/sequencer-batch-appended'
 import { handleEventsStateBatchAppended } from './handlers/state-batch-appended'
 import { L1DataTransportServiceOptions } from '../main/service'
-import { constants } from 'ethers'
 
 export interface L1IngestionServiceOptions
   extends L1DataTransportServiceOptions {
@@ -65,6 +65,7 @@ export class L1IngestionService extends BaseService<L1IngestionServiceOptions> {
     contracts: OptimismContracts
     l1RpcProvider: JsonRpcProvider
     startingL1BlockNumber: number
+    l2ChainId: number
   } = {} as any
 
   protected async _init(): Promise<void> {
@@ -114,6 +115,10 @@ export class L1IngestionService extends BaseService<L1IngestionServiceOptions> {
       this.options.addressManager
     )
 
+    this.state.l2ChainId = ethers.BigNumber.from(
+      await this.state.contracts.OVM_ExecutionManager.ovmCHAINID()
+    ).toNumber()
+
     const startingL1BlockNumber = await this.state.db.getStartingL1Block()
     if (startingL1BlockNumber) {
       this.state.startingL1BlockNumber = startingL1BlockNumber
@@ -295,7 +300,11 @@ export class L1IngestionService extends BaseService<L1IngestionServiceOptions> {
             event,
             this.state.l1RpcProvider
           )
-          const parsedEvent = await handlers.parseEvent(event, extraData)
+          const parsedEvent = await handlers.parseEvent(
+            event,
+            extraData,
+            this.state.l2ChainId
+          )
           await handlers.storeEvent(parsedEvent, this.state.db)
         }
 

packages/data-transport-layer/src/services/l2-ingestion/handlers/transaction.ts

@@ -13,6 +13,7 @@ import {
   padHexString,
   SEQUENCER_ENTRYPOINT_ADDRESS,
   SEQUENCER_GAS_LIMIT,
+  parseSignatureVParam,
 } from '../../../utils'
 
 export const handleSequencerBlock = {
@@ -43,7 +44,7 @@ export const handleSequencerBlock = {
     if (transaction.queueOrigin === 'sequencer') {
       const decodedTransaction: DecodedSequencerBatchTransaction = {
         sig: {
-          v: BigNumber.from(transaction.v).toNumber() - 2 * chainId - 35,
+          v: parseSignatureVParam(transaction.v, chainId),
           r: padHexString(transaction.r, 32),
           s: padHexString(transaction.s, 32),
         },

packages/data-transport-layer/src/types/event-handler-types.ts

@@ -20,7 +20,8 @@ export type GetExtraDataHandler<TEventArgs, TExtraData> = (
 
 export type ParseEventHandler<TEventArgs, TExtraData, TParsedEvent> = (
   event: TypedEthersEvent<TEventArgs>,
-  extraData: TExtraData
+  extraData: TExtraData,
+  l2ChainId: number
 ) => TParsedEvent
 
 export type StoreEventHandler<TParsedEvent> = (

packages/data-transport-layer/src/utils/eth-tx.ts

+/* Imports: External */
+import { ethers } from 'ethers'
+
+export const parseSignatureVParam = (
+  v: number | ethers.BigNumber,
+  chainId: number
+): number => {
+  return ethers.BigNumber.from(v).toNumber() - 2 * chainId - 35
+}

packages/data-transport-layer/src/utils/index.ts

@@ -2,3 +2,4 @@ export * from './common'
 export * from './constants'
 export * from './contracts'
 export * from './validation'
+export * from './eth-tx'

packages/data-transport-layer/test/unit-tests/services/l1-ingestion/handlers/sequencer-batch-appended.spec.ts

 import { BigNumber, ethers } from 'ethers'
+
+/* Imports: Internal */
 import { expect } from '../../../../setup'
 import { handleEventsSequencerBatchAppended } from '../../../../../src/services/l1-ingestion/handlers/sequencer-batch-appended'
 import { SequencerBatchAppendedExtraData } from '../../../../../src/types'
-import { l1TransactionData } from '../../../examples/l1-data'
-import { blocksOnL2 } from '../../../examples/l2-data'
 
 describe('Event Handlers: OVM_CanonicalTransactionChain.SequencerBatchAppended', () => {
   describe('handleEventsSequencerBatchAppended.parseEvent', () => {
@@ -28,7 +28,7 @@ describe('Event Handlers: OVM_CanonicalTransactionChain.SequencerBatchAppended',
     }
 
     it('should error on malformed transaction data', async () => {
-      const input1: [any, SequencerBatchAppendedExtraData] = [
+      const input1: [any, SequencerBatchAppendedExtraData, number] = [
         {
           args: {
             _startingQueueIndex: ethers.constants.Zero,
@@ -40,6 +40,7 @@ describe('Event Handlers: OVM_CanonicalTransactionChain.SequencerBatchAppended',
           l1TransactionData: '0x00000',
           ...exampleExtraData,
         },
+        0,
       ]
 
       expect(() => {

packages/data-transport-layer/test/unit-tests/services/l1-ingestion/handlers/state-batch-appended.spec.ts

+import { expect } from '../../../../setup'
+
+/* Imports: External */
 import { BigNumber } from 'ethers'
 import { Block } from '@ethersproject/abstract-provider'
 
-import { expect } from '../../../../setup'
+/* Imports: Internal */
 import { handleEventsStateBatchAppended } from '../../../../../src/services/l1-ingestion/handlers/state-batch-appended'
 import { StateBatchAppendedExtraData } from '../../../../../src/types'
 import { l1StateBatchData } from '../../../examples/l1-data'
@@ -73,7 +76,11 @@ describe('Event Handlers: OVM_CanonicalTransactionChain.StateBatchAppended', ()
         l1TransactionHash:
           '0x4ca72484e93cdb50fe1089984db152258c2bbffc2534dcafbfe032b596bd5b49',
       }
-      const input1: [any, StateBatchAppendedExtraData] = [event, extraData]
+      const input1: [any, StateBatchAppendedExtraData, number] = [
+        event,
+        extraData,
+        0,
+      ]
 
       const output1 = handleEventsStateBatchAppended.parseEvent(...input1)
 

packages/data-transport-layer/test/unit-tests/services/l1-ingestion/handlers/transaction-enqueued.spec.ts

+import { expect } from '../../../../setup'
+
+/* Imports: External */
 import { ethers, BigNumber } from 'ethers'
 
-import { expect } from '../../../../setup'
+/* Imports: Internal */
 import { handleEventsTransactionEnqueued } from '../../../../../src/services/l1-ingestion/handlers/transaction-enqueued'
 
 const MAX_ITERATIONS = 128
@@ -22,7 +25,7 @@ describe('Event Handlers: OVM_CanonicalTransactionChain.TransactionEnqueued', ()
     // but it's probably better to get wider test coverage first.
 
     it('should have a ctcIndex equal to null', () => {
-      const input1: [any, any] = [
+      const input1: [any, any, number] = [
         {
           blockNumber: 0,
           args: {
@@ -32,6 +35,7 @@ describe('Event Handlers: OVM_CanonicalTransactionChain.TransactionEnqueued', ()
           },
         },
         null,
+        0,
       ]
 
       const output1 = handleEventsTransactionEnqueued.parseEvent(...input1)
@@ -47,7 +51,7 @@ describe('Event Handlers: OVM_CanonicalTransactionChain.TransactionEnqueued', ()
         i < Number.MAX_SAFE_INTEGER;
         i += Math.floor(Number.MAX_SAFE_INTEGER / MAX_ITERATIONS)
       ) {
-        const input1: [any, any] = [
+        const input1: [any, any, number] = [
           {
             blockNumber: i,
             args: {
@@ -57,6 +61,7 @@ describe('Event Handlers: OVM_CanonicalTransactionChain.TransactionEnqueued', ()
             },
           },
           null,
+          0,
         ]
 
         const output1 = handleEventsTransactionEnqueued.parseEvent(...input1)
@@ -73,7 +78,7 @@ describe('Event Handlers: OVM_CanonicalTransactionChain.TransactionEnqueued', ()
         i < Number.MAX_SAFE_INTEGER;
         i += Math.floor(Number.MAX_SAFE_INTEGER / MAX_ITERATIONS)
       ) {
-        const input1: [any, any] = [
+        const input1: [any, any, number] = [
           {
             blockNumber: 0,
             args: {
@@ -83,6 +88,7 @@ describe('Event Handlers: OVM_CanonicalTransactionChain.TransactionEnqueued', ()
             },
           },
           null,
+          0,
         ]
 
         const output1 = handleEventsTransactionEnqueued.parseEvent(...input1)
@@ -99,7 +105,7 @@ describe('Event Handlers: OVM_CanonicalTransactionChain.TransactionEnqueued', ()
         i < Number.MAX_SAFE_INTEGER;
         i += Math.floor(Number.MAX_SAFE_INTEGER / MAX_ITERATIONS)
       ) {
-        const input1: [any, any] = [
+        const input1: [any, any, number] = [
           {
             blockNumber: 0,
             args: {
@@ -109,6 +115,7 @@ describe('Event Handlers: OVM_CanonicalTransactionChain.TransactionEnqueued', ()
             },
           },
           null,
+          0,
         ]
 
         const output1 = handleEventsTransactionEnqueued.parseEvent(...input1)
@@ -125,7 +132,7 @@ describe('Event Handlers: OVM_CanonicalTransactionChain.TransactionEnqueued', ()
         i < Number.MAX_SAFE_INTEGER;
         i += Math.floor(Number.MAX_SAFE_INTEGER / MAX_ITERATIONS)
       ) {
-        const input1: [any, any] = [
+        const input1: [any, any, number] = [
           {
             blockNumber: 0,
             args: {
@@ -135,6 +142,7 @@ describe('Event Handlers: OVM_CanonicalTransactionChain.TransactionEnqueued', ()
             },
           },
           null,
+          0,
         ]
 
         const output1 = handleEventsTransactionEnqueued.parseEvent(...input1)

packages/data-transport-layer/test/unit-tests/services/l2-ingestion/handlers/transaction.spec.ts

 import { expect } from '../../../../setup'
+
+/* Imports: Internal */
 import { l2Block } from '../../../examples/l2-data'
 import { handleSequencerBlock } from '../../../../../src/services/l2-ingestion/handlers/transaction'