feat: signature aggregators

Cargo.toml

@@ -1,6 +1,7 @@
 [workspace]
 members = [
     "bin/rundler/",
+    "crates/aggregators/bls/",
     "crates/bindings/fastlz/",
     "crates/builder/",
     "crates/contracts/",
@@ -24,6 +25,7 @@ repository = "https://github.com/alchemyplatform/rundler"
 
 [workspace.dependencies]
 # rundler crates
+rundler-bls = { path = "crates/aggregators/bls" }
 rundler-contracts = { path = "crates/contracts" }
 rundler-provider = { path = "crates/provider" }
 rundler-sim = { path = "crates/sim" }
@@ -65,6 +67,7 @@ anyhow = "1.0.89"
 async-trait = "0.1.83"
 auto_impl = "1.2.0"
 aws-config = { version = "1.5.6", default-features = false, features = ["rt-tokio", "rustls"] }
+bytes = "1.9.0"
 cargo-husky = { version = "1", default-features = false, features = ["user-hooks"] }
 const-hex = "1.12.0"
 futures = "0.3.30"

bin/rundler/Cargo.toml

@@ -11,6 +11,7 @@ ERC-4337 bundler implementation
 publish = false
 
 [dependencies]
+rundler-bls.workspace = true
 rundler-builder.workspace = true
 rundler-pool.workspace = true
 rundler-provider.workspace = true

bin/rundler/src/cli/aggregator.rs

@@ -0,0 +1,38 @@
+// This file is part of Rundler.
+//
+// Rundler is free software: you can redistribute it and/or modify it under the
+// terms of the GNU Lesser General Public License as published by the Free Software
+// Foundation, either version 3 of the License, or (at your option) any later version.
+//
+// Rundler is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
+// without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+// See the GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License along with Rundler.
+// If not, see https://www.gnu.org/licenses/.
+
+use std::sync::Arc;
+
+use rundler_bls::BlsSignatureAggregatorV0_7;
+use rundler_provider::Providers;
+use rundler_types::{aggregator::SignatureAggregatorRegistry, chain::ChainSpec};
+
+use super::CommonArgs;
+
+/// Instantiate aggregators and pass to chain spec
+pub fn instantiate_aggregators(
+    args: &CommonArgs,
+    chain_spec: &mut ChainSpec,
+    providers: &(impl Providers + 'static),
+) {
+    let mut registry = SignatureAggregatorRegistry::default();
+
+    if args.bls_aggregation_enabled {
+        if let Some(ep_v0_7) = providers.ep_v0_7() {
+            let bls_aggregator = BlsSignatureAggregatorV0_7::new(ep_v0_7.clone());
+            registry.register(Arc::new(bls_aggregator));
+        }
+    }
+
+    chain_spec.set_signature_aggregators(Arc::new(registry));
+}

bin/rundler/src/cli/builder.rs

@@ -21,6 +21,7 @@ use rundler_builder::{
     TransactionSenderArgs, TransactionSenderKind,
 };
 use rundler_pool::RemotePoolClient;
+use rundler_provider::Providers;
 use rundler_sim::{MempoolConfigs, PriorityFeeMode};
 use rundler_task::{
     server::{connect_with_retries_shutdown, format_socket_addr},
@@ -433,6 +434,7 @@ pub async fn spawn_tasks<T: TaskSpawnerExt + 'static>(
     chain_spec: ChainSpec,
     builder_args: BuilderCliArgs,
     common_args: CommonArgs,
+    providers: impl Providers + 'static,
 ) -> anyhow::Result<()> {
     let BuilderCliArgs {
         builder: builder_args,
@@ -469,7 +471,7 @@ pub async fn spawn_tasks<T: TaskSpawnerExt + 'static>(
         event_sender,
         LocalBuilderBuilder::new(REQUEST_CHANNEL_CAPACITY),
         pool,
-        super::construct_providers(&common_args, &chain_spec)?,
+        providers,
     )
     .spawn(task_spawner)
     .await?;

bin/rundler/src/cli/mod.rs

@@ -17,6 +17,7 @@ use alloy_primitives::U256;
 use anyhow::{bail, Context};
 use clap::{builder::PossibleValuesParser, Args, Parser, Subcommand};
 
+mod aggregator;
 mod builder;
 mod chain_spec;
 mod json;
@@ -66,19 +67,24 @@ pub async fn run() -> anyhow::Result<()> {
     )
     .context("metrics server should start")?;
 
-    let cs = chain_spec::resolve_chain_spec(&opt.common.network, &opt.common.chain_spec);
+    let mut cs = chain_spec::resolve_chain_spec(&opt.common.network, &opt.common.chain_spec);
     tracing::info!("Chain spec: {:#?}", cs);
 
+    let providers = construct_providers(&opt.common, &cs)?;
+    aggregator::instantiate_aggregators(&opt.common, &mut cs, &providers);
+
     match opt.command {
         Command::Node(args) => {
-            node::spawn_tasks(task_spawner.clone(), cs, *args, opt.common).await?
+            node::spawn_tasks(task_spawner.clone(), cs, *args, opt.common, providers).await?
         }
         Command::Pool(args) => {
-            pool::spawn_tasks(task_spawner.clone(), cs, args, opt.common).await?
+            pool::spawn_tasks(task_spawner.clone(), cs, args, opt.common, providers).await?
+        }
+        Command::Rpc(args) => {
+            rpc::spawn_tasks(task_spawner.clone(), cs, args, opt.common, providers).await?
         }
-        Command::Rpc(args) => rpc::spawn_tasks(task_spawner.clone(), cs, args, opt.common).await?,
         Command::Builder(args) => {
-            builder::spawn_tasks(task_spawner.clone(), cs, args, opt.common).await?
+            builder::spawn_tasks(task_spawner.clone(), cs, args, opt.common, providers).await?
         }
     }
 
@@ -361,6 +367,13 @@ pub struct CommonArgs {
         env = "MAX_EXPECTED_STORAGE_SLOTS"
     )]
     pub max_expected_storage_slots: Option<usize>,
+
+    #[arg(
+        long = "bls_aggregation_enabled",
+        name = "bls_aggregation_enabled",
+        env = "BLS_AGGREGATION_ENABLED"
+    )]
+    pub bls_aggregation_enabled: bool,
 }
 
 const SIMULATION_GAS_OVERHEAD: u64 = 100_000;
@@ -606,7 +619,7 @@ where
 pub fn construct_providers(
     args: &CommonArgs,
     chain_spec: &ChainSpec,
-) -> anyhow::Result<impl Providers> {
+) -> anyhow::Result<impl Providers + 'static> {
     let provider = Arc::new(rundler_provider::new_alloy_provider(
         args.node_http.as_ref().context("must provide node_http")?,
         args.provider_client_timeout_seconds,

bin/rundler/src/cli/node/mod.rs

@@ -14,6 +14,7 @@
 use clap::Args;
 use rundler_builder::{BuilderEvent, BuilderTask, LocalBuilderBuilder};
 use rundler_pool::{LocalPoolBuilder, PoolEvent, PoolTask};
+use rundler_provider::Providers;
 use rundler_rpc::RpcTask;
 use rundler_task::TaskSpawnerExt;
 use rundler_types::chain::ChainSpec;
@@ -49,6 +50,7 @@ pub async fn spawn_tasks<T: TaskSpawnerExt + 'static>(
     chain_spec: ChainSpec,
     bundler_args: NodeCliArgs,
     common_args: CommonArgs,
+    providers: impl Providers + 'static,
 ) -> anyhow::Result<()> {
     let NodeCliArgs {
         pool: pool_args,
@@ -109,8 +111,6 @@ pub async fn spawn_tasks<T: TaskSpawnerExt + 'static>(
     let builder_builder = LocalBuilderBuilder::new(REQUEST_CHANNEL_CAPACITY);
     let builder_handle = builder_builder.get_handle();
 
-    let providers = super::construct_providers(&common_args, &chain_spec)?;
-
     PoolTask::new(
         pool_task_args,
         op_pool_event_sender,

bin/rundler/src/cli/pool.rs

@@ -17,6 +17,7 @@ use alloy_primitives::Address;
 use anyhow::Context;
 use clap::Args;
 use rundler_pool::{LocalPoolBuilder, PoolConfig, PoolTask, PoolTaskArgs};
+use rundler_provider::Providers;
 use rundler_sim::MempoolConfigs;
 use rundler_task::TaskSpawnerExt;
 use rundler_types::{chain::ChainSpec, EntryPointVersion};
@@ -305,6 +306,7 @@ pub async fn spawn_tasks<T: TaskSpawnerExt + 'static>(
     chain_spec: ChainSpec,
     pool_args: PoolCliArgs,
     common_args: CommonArgs,
+    providers: impl Providers + 'static,
 ) -> anyhow::Result<()> {
     let PoolCliArgs { pool: pool_args } = pool_args;
     let (event_sender, event_rx) = broadcast::channel(EVENT_CHANNEL_CAPACITY);
@@ -325,7 +327,7 @@ pub async fn spawn_tasks<T: TaskSpawnerExt + 'static>(
         task_args,
         event_sender,
         LocalPoolBuilder::new(REQUEST_CHANNEL_CAPACITY, BLOCK_CHANNEL_CAPACITY),
-        super::construct_providers(&common_args, &chain_spec)?,
+        providers,
     )
     .spawn(task_spawner)
     .await?;

bin/rundler/src/cli/rpc.rs

@@ -17,6 +17,7 @@ use anyhow::Context;
 use clap::Args;
 use rundler_builder::RemoteBuilderClient;
 use rundler_pool::RemotePoolClient;
+use rundler_provider::Providers;
 use rundler_rpc::{EthApiSettings, RpcTask, RpcTaskArgs, RundlerApiSettings};
 use rundler_sim::{EstimationSettings, PrecheckSettings};
 use rundler_task::{server::connect_with_retries_shutdown, TaskSpawnerExt};
@@ -160,6 +161,7 @@ pub async fn spawn_tasks<T: TaskSpawnerExt + 'static>(
     chain_spec: ChainSpec,
     rpc_args: RpcCliArgs,
     common_args: CommonArgs,
+    providers: impl Providers + 'static,
 ) -> anyhow::Result<()> {
     let RpcCliArgs {
         rpc: rpc_args,
@@ -192,14 +194,9 @@ pub async fn spawn_tasks<T: TaskSpawnerExt + 'static>(
     )
     .await?;
 
-    RpcTask::new(
-        task_args,
-        pool,
-        builder,
-        super::construct_providers(&common_args, &chain_spec)?,
-    )
-    .spawn(task_spawner)
-    .await?;
+    RpcTask::new(task_args, pool, builder, providers)
+        .spawn(task_spawner)
+        .await?;
 
     Ok(())
 }

crates/aggregators/bls/Cargo.toml

@@ -0,0 +1,17 @@
+[package]
+name = "rundler-bls"
+version.workspace = true
+edition.workspace = true
+rust-version.workspace = true
+license.workspace = true
+repository.workspace = true
+publish = false
+
+[dependencies]
+rundler-provider.workspace = true
+rundler-types.workspace = true
+
+alloy-primitives.workspace = true
+async-trait.workspace = true
+
+[dev-dependencies]