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Ensure genesis is not triggered too early (#1052)

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Paul Hauner
2020-04-29 11:37:14 +10:00
committed by GitHub
parent 37dc3d463d
commit 7f2121205a
3 changed files with 27 additions and 9 deletions
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14
beacon_node/genesis/src/eth1_genesis_service.rs
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@@ -10,7 +10,7 @@ use futures::{
use parking_lot::Mutex;
use slog::{debug, error, info, trace, Logger};
use state_processing::{
initialize_beacon_state_from_eth1, is_valid_genesis_state,
eth2_genesis_time, initialize_beacon_state_from_eth1, is_valid_genesis_state,
per_block_processing::process_deposit, process_activations,
};
use std::sync::Arc;
@@ -223,9 +223,15 @@ impl Eth1GenesisService {
.blocks()
.read()
.iter()
// It's only worth scanning blocks that have timestamps _after_ genesis time. It's
// impossible for any other block to trigger genesis.
.filter(|block| block.timestamp >= spec.min_genesis_time)
// Filter out any blocks that would result in a genesis time that is earlier than
// `MIN_GENESIS_TIME`.
//
// Note: any `SafeArith` errors are suppressed here; we simply skip blocks that cause
// overflow/div-by-zero.
.filter(|block| {
eth2_genesis_time(block.timestamp, spec)
.map_or(false, |t| t >= spec.min_genesis_time)
})
// The block cache might be more recently updated than deposit cache. Restrict any
// block numbers that are not known by all caches.
.filter(|block| {