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babe: report equivocations (#6362)

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* slots: create primitives crate for consensus slots

* offences: add method to check if an offence is unknown

* babe: initial equivocation reporting implementation

* babe: organize imports

* babe: working equivocation reporting

* babe: add slot number to equivocation proof

* session: move duplicate traits to session primitives

* babe: move equivocation stuff to its own file

* offences: fix test

* session: don't have primitives depend on frame_support

* babe: use opaque type for key owner proof

* babe: cleanup client equivocation reporting

* babe: cleanup equivocation code in pallet

* babe: allow sending signed equivocation reports

* node: fix compilation

* fix test compilation

* babe: return bool on check_equivocation_proof

* babe: add test for equivocation reporting

* babe: add more tests

* babe: add test for validate unsigned

* babe: take slot number in generate_key_ownership_proof API

* babe: add benchmark for equivocation proof checking

* session: add benchmark for membership proof checking

* offences: fix babe benchmark

* babe: add weights based on benchmark results

* babe: adjust weights after benchmarking on reference hardware

* babe: reorder checks in check_and_report_equivocation
This commit is contained in:
André Silva
2020-07-04 11:18:13 +01:00
committed by GitHub
parent 61635e75c1
commit a9c21b8b84
34 changed files with 2031 additions and 275 deletions
Download Patch File Download Diff File Expand all files Collapse all files
substrate/frame/offences/benchmarking/src/lib.rs
+7 -12
View File
@@ -323,21 +323,16 @@ benchmarks! {
}
report_offence_babe {
let r in 1 .. MAX_REPORTERS;
let n in 0 .. MAX_NOMINATORS.min(MAX_NOMINATIONS as u32);
let o = 1;
// Make r reporters
let mut reporters = vec![];
for i in 0 .. r {
let reporter = account("reporter", i, SEED);
reporters.push(reporter);
}
// for babe equivocation reports the number of reporters
// and offenders is always 1
let reporters = vec![account("reporter", 1, SEED)];
// make sure reporters actually get rewarded
Staking::<T>::set_slash_reward_fraction(Perbill::one());
let (mut offenders, raw_offenders) = make_offenders::<T>(o, n)?;
let (mut offenders, raw_offenders) = make_offenders::<T>(1, n)?;
let keys = ImOnline::<T>::keys();
let offence = BabeEquivocationOffence {
@@ -357,9 +352,9 @@ benchmarks! {
assert_eq!(
System::<T>::event_count(), 0
+ 1 // offence
+ 2 * r // reporter (reward + endowment)
+ o // offenders slashed
+ o * n // nominators slashed
+ 2 // reporter (reward + endowment)
+ 1 // offenders slashed
+ n // nominators slashed
);
}