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Implement Slashing Protection (#1116)

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* Implement slashing protection

Roll-up of #588 with some conflicts resolved

* WIP improvements

* Require slot uniqueness for blocks (rather than epochs)
* Native DB support for Slot and Epoch
* Simplify surrounding/surrounded-by queries

* Implement unified slashing protection database

A single SQL database saves on open file descriptors.

* Make slashing protection concurrency safe.

Revive tests, add parallel tests.

* Some simplifications

* Auto-registration, test clean-ups

* More tests, clean-ups, hardening

* Fix comments in BLS

* Optimise bulk validator registration

* Delete outdated tests

* Use bundled SQLite in slashing protection

* Auto-register validators in simulation

* Use real signing_root in slashing protection

* Update book for --auto-register

* Refine log messages and help flags

* Correct typo in Cargo.toml authors

* Fix merge conflicts

* Safer error handling in sqlite slot/epoch

* Address review comments

* Add attestation test mutating block root

Co-authored-by: pscott <scottpiriou@gmail.com>
This commit is contained in:
Michael Sproul
2020-05-18 16:25:16 +10:00
committed by GitHub
parent 90b3953dda
commit 2d8e2dd7f5
30 changed files with 1720 additions and 52 deletions
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12
validator_client/src/config.rs
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@@ -4,6 +4,8 @@ use std::path::PathBuf;
pub const DEFAULT_HTTP_SERVER: &str = "http://localhost:5052/";
pub const DEFAULT_DATA_DIR: &str = ".lighthouse/validators";
/// Path to the slashing protection database within the datadir.
pub const SLASHING_PROTECTION_FILENAME: &str = "slashing_protection.sqlite";
/// Specifies a method for obtaining validator keypairs.
#[derive(Clone)]
@@ -35,19 +37,22 @@ pub struct Config {
/// If true, the validator client will still poll for duties and produce blocks even if the
/// beacon node is not synced at startup.
pub allow_unsynced_beacon_node: bool,
/// If true, register new validator keys with the slashing protection database.
pub auto_register: bool,
}
impl Default for Config {
/// Build a new configuration from defaults.
fn default() -> Self {
let mut data_dir = dirs::home_dir().unwrap_or_else(|| PathBuf::from("."));
data_dir.push(".lighthouse");
data_dir.push("validators");
let data_dir = dirs::home_dir()
.map(|home| home.join(DEFAULT_DATA_DIR))
.unwrap_or_else(|| PathBuf::from("."));
Self {
data_dir,
key_source: <_>::default(),
http_server: DEFAULT_HTTP_SERVER.to_string(),
allow_unsynced_beacon_node: false,
auto_register: false,
}
}
}
@@ -93,6 +98,7 @@ impl Config {
};
config.allow_unsynced_beacon_node = cli_args.is_present("allow-unsynced");
config.auto_register = cli_args.is_present("auto-register");
Ok(config)
}