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Doppelganger detection (#2230)

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## Issue Addressed

Resolves #2069 

## Proposed Changes

- Adds a `--doppelganger-detection` flag
- Adds a `lighthouse/seen_validators` endpoint, which will make it so the lighthouse VC is not interopable with other client beacon nodes if the `--doppelganger-detection` flag is used, but hopefully this will become standardized. Relevant Eth2 API repo issue: https://github.com/ethereum/eth2.0-APIs/issues/64
- If the `--doppelganger-detection` flag is used, the VC will wait until the beacon node is synced, and then wait an additional 2 epochs. The reason for this is to make sure the beacon node is able to subscribe to the subnets our validators should be attesting on. I think an alternative would be to have the beacon node subscribe to all subnets for 2+ epochs on startup by default.

## Additional Info

I'd like to add tests and would appreciate feedback. 

TODO:  handle validators started via the API, potentially make this default behavior

Co-authored-by: realbigsean <seananderson33@gmail.com>
Co-authored-by: Michael Sproul <michael@sigmaprime.io>
Co-authored-by: Paul Hauner <paul@paulhauner.com>
This commit is contained in:
realbigsean
2021-07-31 03:50:52 +00:00
parent 834ee98bc2
commit c5786a8821
38 changed files with 2302 additions and 201 deletions
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16
validator_client/src/http_api/mod.rs
View File

@@ -50,10 +50,10 @@ impl From<String> for Error {
/// A wrapper around all the items required to spawn the HTTP server.
///
/// The server will gracefully handle the case where any fields are `None`.
pub struct Context<T: Clone, E: EthSpec> {
pub struct Context<T: SlotClock, E: EthSpec> {
pub runtime: Weak<Runtime>,
pub api_secret: ApiSecret,
pub validator_store: Option<ValidatorStore<T, E>>,
pub validator_store: Option<Arc<ValidatorStore<T, E>>>,
pub validator_dir: Option<PathBuf>,
pub spec: ChainSpec,
pub config: Config,
@@ -203,7 +203,7 @@ pub fn serve<T: 'static + SlotClock + Clone, E: EthSpec>(
.and(warp::path::end())
.and(validator_store_filter.clone())
.and(signer.clone())
.and_then(|validator_store: ValidatorStore<T, E>, signer| {
.and_then(|validator_store: Arc<ValidatorStore<T, E>>, signer| {
blocking_signed_json_task(signer, move || {
let validators = validator_store
.initialized_validators()
@@ -229,7 +229,7 @@ pub fn serve<T: 'static + SlotClock + Clone, E: EthSpec>(
.and(validator_store_filter.clone())
.and(signer.clone())
.and_then(
|validator_pubkey: PublicKey, validator_store: ValidatorStore<T, E>, signer| {
|validator_pubkey: PublicKey, validator_store: Arc<ValidatorStore<T, E>>, signer| {
blocking_signed_json_task(signer, move || {
let validator = validator_store
.initialized_validators()
@@ -267,7 +267,7 @@ pub fn serve<T: 'static + SlotClock + Clone, E: EthSpec>(
.and_then(
|body: Vec<api_types::ValidatorRequest>,
validator_dir: PathBuf,
validator_store: ValidatorStore<T, E>,
validator_store: Arc<ValidatorStore<T, E>>,
spec: Arc<ChainSpec>,
signer,
runtime: Weak<Runtime>| {
@@ -309,7 +309,7 @@ pub fn serve<T: 'static + SlotClock + Clone, E: EthSpec>(
.and_then(
|body: api_types::CreateValidatorsMnemonicRequest,
validator_dir: PathBuf,
validator_store: ValidatorStore<T, E>,
validator_store: Arc<ValidatorStore<T, E>>,
spec: Arc<ChainSpec>,
signer,
runtime: Weak<Runtime>| {
@@ -353,7 +353,7 @@ pub fn serve<T: 'static + SlotClock + Clone, E: EthSpec>(
.and_then(
|body: api_types::KeystoreValidatorsPostRequest,
validator_dir: PathBuf,
validator_store: ValidatorStore<T, E>,
validator_store: Arc<ValidatorStore<T, E>>,
signer,
runtime: Weak<Runtime>| {
blocking_signed_json_task(signer, move || {
@@ -428,7 +428,7 @@ pub fn serve<T: 'static + SlotClock + Clone, E: EthSpec>(
.and_then(
|validator_pubkey: PublicKey,
body: api_types::ValidatorPatchRequest,
validator_store: ValidatorStore<T, E>,
validator_store: Arc<ValidatorStore<T, E>>,
signer,
runtime: Weak<Runtime>| {
blocking_signed_json_task(signer, move || {