Support the Arbitrum BoLD Challenge Protocol in Nitro

.github/workflows/ci.yml

@@ -20,7 +20,7 @@ jobs:
       redis:
         image: redis
         ports:
-            - 6379:6379
+          - 6379:6379
 
     strategy:
       fail-fast: false
@@ -192,7 +192,7 @@ jobs:
 
       - name: run challenge tests
         if: matrix.test-mode == 'challenge'
-        run: ${{ github.workspace }}/.github/workflows/gotestsum.sh --tags challengetest --run TestChallenge --cover
+        run: ${{ github.workspace }}/.github/workflows/gotestsum.sh --tags challengetest --run TestChallenge --timeout 60m --cover
 
       - name: run stylus tests
         if: matrix.test-mode == 'stylus'

.gitmodules

@@ -23,6 +23,9 @@
 [submodule "nitro-testnode"]
 	path = nitro-testnode
 	url = https://github.com/OffchainLabs/nitro-testnode.git
+[submodule "bold"]
+	path = bold
+	url = https://github.com/OffchainLabs/bold.git
 [submodule "arbitrator/langs/rust"]
 	path = arbitrator/langs/rust
 	url = https://github.com/OffchainLabs/stylus-sdk-rs.git

Dockerfile

@@ -88,6 +88,7 @@ COPY ./safe-smart-account ./safe-smart-account
 COPY ./solgen/gen.go ./solgen/
 COPY ./fastcache ./fastcache
 COPY ./go-ethereum ./go-ethereum
+COPY ./bold ./bold
 COPY --from=brotli-wasm-export / target/
 COPY --from=contracts-builder workspace/contracts/build/contracts/src/precompiles/ contracts/build/contracts/src/precompiles/
 COPY --from=contracts-builder workspace/contracts/node_modules/@offchainlabs/upgrade-executor/build/contracts/src/UpgradeExecutor.sol/UpgradeExecutor.json contracts/
@@ -234,6 +235,7 @@ RUN export DEBIAN_FRONTEND=noninteractive && \
 COPY go.mod go.sum ./
 COPY go-ethereum/go.mod go-ethereum/go.sum go-ethereum/
 COPY fastcache/go.mod fastcache/go.sum fastcache/
+COPY bold/go.mod bold/go.sum bold/
 RUN go mod download
 COPY . ./
 COPY --from=contracts-builder workspace/contracts/build/ contracts/build/

arbitrator/prover/src/lib.rs

@@ -127,6 +127,12 @@ pub unsafe extern "C" fn arbitrator_load_wavm_binary(binary_path: *const c_char)
     }
 }
 
+#[no_mangle]
+#[cfg(feature = "native")]
+pub unsafe extern "C" fn arbitrator_new_finished() -> *mut Machine {
+    Box::into_raw(Box::new(Machine::new_finished()))
+}
+
 unsafe fn cstr_to_string(c_str: *const c_char) -> String {
     CStr::from_ptr(c_str).to_string_lossy().into_owned()
 }

arbitrator/prover/src/machine.rs

@@ -1565,6 +1565,39 @@ impl Machine {
         Ok(mach)
     }
 
+    // new_finished returns a Machine in the Finished state at step 0.
+    //
+    // This allows the Mahine to be set up to model the final state of the
+    // machine at the end of the execution of a block.
+    //
+    // Callers should use set_global_state to set the global state of the
+    // machine to the global state at the end of the block.
+    pub fn new_finished() -> Machine {
+        Machine {
+            steps: 0,
+            status: MachineStatus::Finished,
+            global_state: Default::default(),
+            // The machine is in the Finished state, so nothing else really matters.
+            // values_stacks and frame_stacks cannot be empty for proof serialization,
+            // but everything else can just be entirely blank.
+            thread_state: ThreadState::Main,
+            value_stacks: vec![Vec::new()],
+            frame_stacks: vec![Vec::new()],
+            internal_stack: Default::default(),
+            modules: Default::default(),
+            modules_merkle: Default::default(),
+            pc: Default::default(),
+            stdio_output: Default::default(),
+            inbox_contents: Default::default(),
+            first_too_far: Default::default(),
+            preimage_resolver: PreimageResolverWrapper::new(Arc::new(|_, _, _| None)),
+            stylus_modules: Default::default(),
+            initial_hash: Default::default(),
+            context: Default::default(),
+            debug_info: Default::default(),
+        }
+    }
+
     pub fn new_from_wavm(wavm_binary: &Path) -> Result<Machine> {
         let mut modules: Vec<Module> = {
             let compressed = std::fs::read(wavm_binary)?;
@@ -2867,6 +2900,15 @@ impl Machine {
         let mod_merkle = self.get_modules_merkle();
         out!(mod_merkle.root());
 
+        if self.is_halted() {
+            // If the machine is halted, instead of serializing the module,
+            // serialize the global state and return.
+            // This is for the "kickstart" BoLD proof, but it's backwards compatible
+            // with the old OSP behavior which reads no further.
+            out!(self.global_state.serialize());
+            return data;
+        }
+
         // End machine serialization, serialize module
 
         let module = &self.modules[self.pc.module()];

arbnode/dataposter/data_poster.go

@@ -712,13 +712,23 @@ func (p *DataPoster) feeAndTipCaps(ctx context.Context, nonce uint64, gasLimit u
 	return newBaseFeeCap, newTipCap, newBlobFeeCap, nil
 }
 
-func (p *DataPoster) PostSimpleTransaction(ctx context.Context, nonce uint64, to common.Address, calldata []byte, gasLimit uint64, value *big.Int) (*types.Transaction, error) {
-	return p.PostTransaction(ctx, time.Now(), nonce, nil, to, calldata, gasLimit, value, nil, nil)
+func (p *DataPoster) PostSimpleTransaction(ctx context.Context, to common.Address, calldata []byte, gasLimit uint64, value *big.Int) (*types.Transaction, error) {
+	p.mutex.Lock()
+	defer p.mutex.Unlock()
+	nonce, _, _, _, err := p.getNextNonceAndMaybeMeta(ctx, 1)
+	if err != nil {
+		return nil, err
+	}
+	return p.postTransactionWithMutex(ctx, time.Now(), nonce, nil, to, calldata, gasLimit, value, nil, nil)
 }
 
 func (p *DataPoster) PostTransaction(ctx context.Context, dataCreatedAt time.Time, nonce uint64, meta []byte, to common.Address, calldata []byte, gasLimit uint64, value *big.Int, kzgBlobs []kzg4844.Blob, accessList types.AccessList) (*types.Transaction, error) {
 	p.mutex.Lock()
 	defer p.mutex.Unlock()
+	return p.postTransactionWithMutex(ctx, dataCreatedAt, nonce, meta, to, calldata, gasLimit, value, kzgBlobs, accessList)
+}
+
+func (p *DataPoster) postTransactionWithMutex(ctx context.Context, dataCreatedAt time.Time, nonce uint64, meta []byte, to common.Address, calldata []byte, gasLimit uint64, value *big.Int, kzgBlobs []kzg4844.Blob, accessList types.AccessList) (*types.Transaction, error) {
 
 	if p.config().DisableNewTx {
 		return nil, fmt.Errorf("posting new transaction is disabled")

arbnode/node.go

@@ -42,6 +42,9 @@ import (
 	"github.com/offchainlabs/nitro/solgen/go/precompilesgen"
 	"github.com/offchainlabs/nitro/solgen/go/rollupgen"
 	"github.com/offchainlabs/nitro/staker"
+	boldstaker "github.com/offchainlabs/nitro/staker/bold"
+	legacystaker "github.com/offchainlabs/nitro/staker/legacy"
+	multiprotocolstaker "github.com/offchainlabs/nitro/staker/multi_protocol"
 	"github.com/offchainlabs/nitro/staker/validatorwallet"
 	"github.com/offchainlabs/nitro/util/contracts"
 	"github.com/offchainlabs/nitro/util/headerreader"
@@ -79,22 +82,23 @@ func GenerateRollupConfig(prod bool, wasmModuleRoot common.Hash, rollupOwner com
 }
 
 type Config struct {
-	Sequencer           bool                        `koanf:"sequencer"`
-	ParentChainReader   headerreader.Config         `koanf:"parent-chain-reader" reload:"hot"`
-	InboxReader         InboxReaderConfig           `koanf:"inbox-reader" reload:"hot"`
-	DelayedSequencer    DelayedSequencerConfig      `koanf:"delayed-sequencer" reload:"hot"`
-	BatchPoster         BatchPosterConfig           `koanf:"batch-poster" reload:"hot"`
-	MessagePruner       MessagePrunerConfig         `koanf:"message-pruner" reload:"hot"`
-	BlockValidator      staker.BlockValidatorConfig `koanf:"block-validator" reload:"hot"`
-	Feed                broadcastclient.FeedConfig  `koanf:"feed" reload:"hot"`
-	Staker              staker.L1ValidatorConfig    `koanf:"staker" reload:"hot"`
-	SeqCoordinator      SeqCoordinatorConfig        `koanf:"seq-coordinator"`
-	DataAvailability    das.DataAvailabilityConfig  `koanf:"data-availability"`
-	SyncMonitor         SyncMonitorConfig           `koanf:"sync-monitor"`
-	Dangerous           DangerousConfig             `koanf:"dangerous"`
-	TransactionStreamer TransactionStreamerConfig   `koanf:"transaction-streamer" reload:"hot"`
-	Maintenance         MaintenanceConfig           `koanf:"maintenance" reload:"hot"`
-	ResourceMgmt        resourcemanager.Config      `koanf:"resource-mgmt" reload:"hot"`
+	Sequencer           bool                           `koanf:"sequencer"`
+	ParentChainReader   headerreader.Config            `koanf:"parent-chain-reader" reload:"hot"`
+	InboxReader         InboxReaderConfig              `koanf:"inbox-reader" reload:"hot"`
+	DelayedSequencer    DelayedSequencerConfig         `koanf:"delayed-sequencer" reload:"hot"`
+	BatchPoster         BatchPosterConfig              `koanf:"batch-poster" reload:"hot"`
+	MessagePruner       MessagePrunerConfig            `koanf:"message-pruner" reload:"hot"`
+	BlockValidator      staker.BlockValidatorConfig    `koanf:"block-validator" reload:"hot"`
+	Feed                broadcastclient.FeedConfig     `koanf:"feed" reload:"hot"`
+	Staker              legacystaker.L1ValidatorConfig `koanf:"staker" reload:"hot"`
+	BOLD                boldstaker.BoldConfig          `koanf:"bold"`
+	SeqCoordinator      SeqCoordinatorConfig           `koanf:"seq-coordinator"`
+	DataAvailability    das.DataAvailabilityConfig     `koanf:"data-availability"`
+	SyncMonitor         SyncMonitorConfig              `koanf:"sync-monitor"`
+	Dangerous           DangerousConfig                `koanf:"dangerous"`
+	TransactionStreamer TransactionStreamerConfig      `koanf:"transaction-streamer" reload:"hot"`
+	Maintenance         MaintenanceConfig              `koanf:"maintenance" reload:"hot"`
+	ResourceMgmt        resourcemanager.Config         `koanf:"resource-mgmt" reload:"hot"`
 	// SnapSyncConfig is only used for testing purposes, these should not be configured in production.
 	SnapSyncTest SnapSyncConfig
 }
@@ -153,7 +157,8 @@ func ConfigAddOptions(prefix string, f *flag.FlagSet, feedInputEnable bool, feed
 	MessagePrunerConfigAddOptions(prefix+".message-pruner", f)
 	staker.BlockValidatorConfigAddOptions(prefix+".block-validator", f)
 	broadcastclient.FeedConfigAddOptions(prefix+".feed", f, feedInputEnable, feedOutputEnable)
-	staker.L1ValidatorConfigAddOptions(prefix+".staker", f)
+	legacystaker.L1ValidatorConfigAddOptions(prefix+".staker", f)
+	boldstaker.BoldConfigAddOptions(prefix+".bold", f)
 	SeqCoordinatorConfigAddOptions(prefix+".seq-coordinator", f)
 	das.DataAvailabilityConfigAddNodeOptions(prefix+".data-availability", f)
 	SyncMonitorConfigAddOptions(prefix+".sync-monitor", f)
@@ -171,7 +176,8 @@ var ConfigDefault = Config{
 	MessagePruner:       DefaultMessagePrunerConfig,
 	BlockValidator:      staker.DefaultBlockValidatorConfig,
 	Feed:                broadcastclient.FeedConfigDefault,
-	Staker:              staker.DefaultL1ValidatorConfig,
+	Staker:              legacystaker.DefaultL1ValidatorConfig,
+	BOLD:                boldstaker.DefaultBoldConfig,
 	SeqCoordinator:      DefaultSeqCoordinatorConfig,
 	DataAvailability:    das.DefaultDataAvailabilityConfig,
 	SyncMonitor:         DefaultSyncMonitorConfig,
@@ -203,7 +209,7 @@ func ConfigDefaultL1NonSequencerTest() *Config {
 	config.SeqCoordinator.Enable = false
 	config.BlockValidator = staker.TestBlockValidatorConfig
 	config.SyncMonitor = TestSyncMonitorConfig
-	config.Staker = staker.TestL1ValidatorConfig
+	config.Staker = legacystaker.TestL1ValidatorConfig
 	config.Staker.Enable = false
 	config.BlockValidator.ValidationServerConfigs = []rpcclient.ClientConfig{{URL: ""}}
 
@@ -219,7 +225,7 @@ func ConfigDefaultL2Test() *Config {
 	config.Feed.Output.Signed = false
 	config.SeqCoordinator.Signer.ECDSA.AcceptSequencer = false
 	config.SeqCoordinator.Signer.ECDSA.Dangerous.AcceptMissing = true
-	config.Staker = staker.TestL1ValidatorConfig
+	config.Staker = legacystaker.TestL1ValidatorConfig
 	config.SyncMonitor = TestSyncMonitorConfig
 	config.Staker.Enable = false
 	config.BlockValidator.ValidationServerConfigs = []rpcclient.ClientConfig{{URL: ""}}
@@ -267,7 +273,7 @@ type Node struct {
 	MessagePruner           *MessagePruner
 	BlockValidator          *staker.BlockValidator
 	StatelessBlockValidator *staker.StatelessBlockValidator
-	Staker                  *staker.Staker
+	Staker                  *multiprotocolstaker.MultiProtocolStaker
 	BroadcastServer         *broadcaster.Broadcaster
 	BroadcastClients        *broadcastclients.BroadcastClients
 	SeqCoordinator          *SeqCoordinator
@@ -633,7 +639,7 @@ func createNodeImpl(
 		}
 	}
 
-	var stakerObj *staker.Staker
+	var stakerObj *multiprotocolstaker.MultiProtocolStaker
 	var messagePruner *MessagePruner
 	var stakerAddr common.Address
 
@@ -653,7 +659,7 @@ func createNodeImpl(
 		getExtraGas := func() uint64 { return configFetcher.Get().Staker.ExtraGas }
 		// TODO: factor this out into separate helper, and split rest of node
 		// creation into multiple helpers.
-		var wallet staker.ValidatorWalletInterface = validatorwallet.NewNoOp(l1client, deployInfo.Rollup)
+		var wallet legacystaker.ValidatorWalletInterface = validatorwallet.NewNoOp(l1client, deployInfo.Rollup)
 		if !strings.EqualFold(config.Staker.Strategy, "watchtower") {
 			if config.Staker.UseSmartContractWallet || (txOptsValidator == nil && config.Staker.DataPoster.ExternalSigner.URL == "") {
 				var existingWalletAddress *common.Address
@@ -681,13 +687,13 @@ func createNodeImpl(
 			}
 		}
 
-		var confirmedNotifiers []staker.LatestConfirmedNotifier
+		var confirmedNotifiers []legacystaker.LatestConfirmedNotifier
 		if config.MessagePruner.Enable {
 			messagePruner = NewMessagePruner(txStreamer, inboxTracker, func() *MessagePrunerConfig { return &configFetcher.Get().MessagePruner })
 			confirmedNotifiers = append(confirmedNotifiers, messagePruner)
 		}
 
-		stakerObj, err = staker.NewStaker(l1Reader, wallet, bind.CallOpts{}, func() *staker.L1ValidatorConfig { return &configFetcher.Get().Staker }, blockValidator, statelessBlockValidator, nil, confirmedNotifiers, deployInfo.ValidatorUtils, fatalErrChan)
+		stakerObj, err = multiprotocolstaker.NewMultiProtocolStaker(l1Reader, wallet, bind.CallOpts{}, func() *legacystaker.L1ValidatorConfig { return &configFetcher.Get().Staker }, &configFetcher.Get().BOLD, blockValidator, statelessBlockValidator, nil, confirmedNotifiers, deployInfo.ValidatorUtils, deployInfo.Bridge, fatalErrChan)
 		if err != nil {
 			return nil, err
 		}
@@ -697,11 +703,7 @@ func createNodeImpl(
 		if dp != nil {
 			stakerAddr = dp.Sender()
 		}
-		whitelisted, err := stakerObj.IsWhitelisted(ctx)
-		if err != nil {
-			return nil, err
-		}
-		log.Info("running as validator", "txSender", stakerAddr, "actingAsWallet", wallet.Address(), "whitelisted", whitelisted, "strategy", config.Staker.Strategy)
+		log.Info("running as validator", "txSender", stakerAddr, "actingAsWallet", wallet.Address(), "strategy", config.Staker.Strategy)
 	}
 
 	var batchPoster *BatchPoster
@@ -905,7 +907,8 @@ func (n *Node) Start(ctx context.Context) error {
 		n.MessagePruner.Start(ctx)
 	}
 	if n.Staker != nil {
-		err = n.Staker.Initialize(ctx)
+		err = n.Staker.
+			Initialize(ctx)
 		if err != nil {
 			return fmt.Errorf("error initializing staker: %w", err)
 		}

cmd/chaininfo/chain_info.go

@@ -120,5 +120,6 @@ type RollupAddresses struct {
 	UpgradeExecutor        common.Address `json:"upgrade-executor"`
 	ValidatorUtils         common.Address `json:"validator-utils"`
 	ValidatorWalletCreator common.Address `json:"validator-wallet-creator"`
+	StakeToken             common.Address `json:"stake-token"`
 	DeployedAt             uint64         `json:"deployed-at"`
 }

cmd/nitro-val/nitro_val.go

@@ -135,6 +135,7 @@ func mainImpl() int {
 		func() *valnode.Config { return &liveNodeConfig.Get().Validation },
 		stack,
 		fatalErrChan,
+		nil,
 	)
 	if err != nil {
 		log.Error("couldn't init validation node", "err", err)

cmd/nitro/nitro.go

@@ -59,7 +59,7 @@ import (
 	"github.com/offchainlabs/nitro/solgen/go/bridgegen"
 	"github.com/offchainlabs/nitro/solgen/go/precompilesgen"
 	"github.com/offchainlabs/nitro/solgen/go/rollupgen"
-	"github.com/offchainlabs/nitro/staker"
+	legacystaker "github.com/offchainlabs/nitro/staker/legacy"
 	"github.com/offchainlabs/nitro/staker/validatorwallet"
 	"github.com/offchainlabs/nitro/util/colors"
 	"github.com/offchainlabs/nitro/util/dbutil"
@@ -257,7 +257,7 @@ func mainImpl() int {
 	defaultL1WalletConfig.ResolveDirectoryNames(nodeConfig.Persistent.Chain)
 
 	nodeConfig.Node.Staker.ParentChainWallet.ResolveDirectoryNames(nodeConfig.Persistent.Chain)
-	defaultValidatorL1WalletConfig := staker.DefaultValidatorL1WalletConfig
+	defaultValidatorL1WalletConfig := legacystaker.DefaultValidatorL1WalletConfig
 	defaultValidatorL1WalletConfig.ResolveDirectoryNames(nodeConfig.Persistent.Chain)
 
 	nodeConfig.Node.BatchPoster.ParentChainWallet.ResolveDirectoryNames(nodeConfig.Persistent.Chain)
@@ -294,7 +294,7 @@ func mainImpl() int {
 		if err != nil {
 			log.Crit("couldn't parse staker strategy", "err", err)
 		}
-		if strategy != staker.WatchtowerStrategy && !nodeConfig.Node.Staker.Dangerous.WithoutBlockValidator {
+		if strategy != legacystaker.WatchtowerStrategy && !nodeConfig.Node.Staker.Dangerous.WithoutBlockValidator {
 			nodeConfig.Node.BlockValidator.Enable = true
 		}
 	}
@@ -518,6 +518,7 @@ func mainImpl() int {
 			func() *valnode.Config { return &liveNodeConfig.Get().Validation },
 			stack,
 			fatalErrChan,
+			nil,
 		)
 		if err != nil {
 			valNode = nil