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Punish offline validators, aura-style (#1216)

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* make offline-reporting infrastructure more generic

* add a listener-trait for watching when the timestamp has been set

* prevent inclusion of empty offline reports

* add test for exclusion

* generate aura-offline reports

* ability to slash many times for being offline "multiple" times

* Logic for punishing validators for missing aura steps

* stub tests

* pave way for verification of timestamp vs slot

* alter aura import queue to wait for timestamp

* check timestamp matches seal

* do inherent check properly

* service compiles

* all tests compile

* test srml-aura logic

* aura tests pass

* everything builds

* some more final tweaks to block authorship for aura

* switch to manual delays before step

* restore substrate-consensus-aura to always std and address grumbles

* update some state roots in executor tests

* node-executor tests pass

* get most tests passing

* address grumbles
This commit is contained in:
Robert Habermeier
2018-12-10 18:37:08 +01:00
committed by GitHub
parent dcc38fe45a
commit 6299b42a4d
41 changed files with 1344 additions and 379 deletions
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substrate/srml/timestamp/src/lib.rs
+25 -2
View File
@@ -56,12 +56,32 @@ use runtime_primitives::traits::{
use system::ensure_inherent;
use rstd::{result, ops::{Mul, Div}, vec::Vec};
/// A trait which is called when the timestamp is set.
pub trait OnTimestampSet<Moment> {
fn on_timestamp_set(moment: Moment);
}
impl<Moment> OnTimestampSet<Moment> for () {
fn on_timestamp_set(_moment: Moment) { }
}
impl<A, B, Moment: Clone> OnTimestampSet<Moment> for (A, B)
where A: OnTimestampSet<Moment>, B: OnTimestampSet<Moment>
{
fn on_timestamp_set(moment: Moment) {
A::on_timestamp_set(moment.clone());
B::on_timestamp_set(moment);
}
}
pub trait Trait: consensus::Trait + system::Trait {
/// The position of the required timestamp-set extrinsic.
const TIMESTAMP_SET_POSITION: u32;
/// Type used for expressing timestamp.
type Moment: Parameter + Default + SimpleArithmetic + Mul<Self::BlockNumber, Output = Self::Moment> + Div<Self::BlockNumber, Output = Self::Moment>;
/// Something which can be notified when the timestamp is set. Set this to `()` if not needed.
type OnTimestampSet: OnTimestampSet<Self::Moment>;
}
decl_module! {
@@ -88,8 +108,10 @@ decl_module! {
Self::now().is_zero() || now >= Self::now() + Self::block_period(),
"Timestamp must increment by at least <BlockPeriod> between sequential blocks"
);
<Self as Store>::Now::put(now);
<Self as Store>::Now::put(now.clone());
<Self as Store>::DidUpdate::put(true);
<T::OnTimestampSet as OnTimestampSet<_>>::on_timestamp_set(now);
}
fn on_finalise() {
@@ -192,11 +214,12 @@ mod tests {
const NOTE_OFFLINE_POSITION: u32 = 1;
type Log = DigestItem;
type SessionKey = u64;
type OnOfflineValidator = ();
type InherentOfflineReport = ();
}
impl Trait for Test {
const TIMESTAMP_SET_POSITION: u32 = 0;
type Moment = u64;
type OnTimestampSet = ();
}
type Timestamp = Module<Test>;