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Limit maximum number of shreds in a slot to 32K (#7584)

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* Limit maximum number of shreds in a slot to 32K

* mark dead slot replay as fatal error
This commit is contained in:
Pankaj Garg
2019-12-30 07:42:09 -08:00
committed by GitHub
parent faa77aca2e
commit 87b2525e03
8 changed files with 64 additions and 8 deletions
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8
core/src/sigverify_shreds.rs
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@@ -4,12 +4,10 @@ use crate::sigverify;
use crate::sigverify_stage::SigVerifier;
use solana_ledger::bank_forks::BankForks;
use solana_ledger::leader_schedule_cache::LeaderScheduleCache;
use solana_ledger::shred::ShredType;
use solana_ledger::shred::{OFFSET_OF_SHRED_SLOT, SIZE_OF_SHRED_SLOT};
use solana_ledger::sigverify_shreds::verify_shreds_gpu;
use solana_perf::recycler_cache::RecyclerCache;
use solana_sdk::signature::Signature;
use std::collections::{HashMap, HashSet};
use std::mem::size_of;
use std::sync::{Arc, RwLock};
#[derive(Clone)]
@@ -36,8 +34,8 @@ impl ShredSigVerifier {
.iter()
.flat_map(|batch| {
batch.packets.iter().filter_map(|packet| {
let slot_start = size_of::<Signature>() + size_of::<ShredType>();
let slot_end = slot_start + size_of::<u64>();
let slot_start = OFFSET_OF_SHRED_SLOT;
let slot_end = slot_start + SIZE_OF_SHRED_SLOT;
trace!("slot {} {}", slot_start, slot_end,);
if slot_end <= packet.meta.size {
limited_deserialize(&packet.data[slot_start..slot_end]).ok()