89 lines
2.9 KiB
Rust
89 lines
2.9 KiB
Rust
use super::*;
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use solana_ledger::shred::{Shredder, RECOMMENDED_FEC_RATE};
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use solana_sdk::hash::Hash;
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pub(super) struct FailEntryVerificationBroadcastRun {
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shred_version: u16,
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}
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impl FailEntryVerificationBroadcastRun {
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pub(super) fn new(shred_version: u16) -> Self {
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Self { shred_version }
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}
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}
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impl BroadcastRun for FailEntryVerificationBroadcastRun {
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fn run(
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&mut self,
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cluster_info: &Arc<RwLock<ClusterInfo>>,
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receiver: &Receiver<WorkingBankEntry>,
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sock: &UdpSocket,
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blocktree: &Arc<Blocktree>,
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) -> Result<()> {
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// 1) Pull entries from banking stage
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let mut receive_results = broadcast_utils::recv_slot_entries(receiver)?;
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let bank = receive_results.bank.clone();
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let last_tick_height = receive_results.last_tick_height;
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// 2) Convert entries to shreds + generate coding shreds. Set a garbage PoH on the last entry
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// in the slot to make verification fail on validators
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if last_tick_height == bank.max_tick_height() {
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let mut last_entry = receive_results.entries.last_mut().unwrap();
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last_entry.hash = Hash::default();
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}
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let keypair = cluster_info.read().unwrap().keypair.clone();
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let next_shred_index = blocktree
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.meta(bank.slot())
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.expect("Database error")
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.map(|meta| meta.consumed)
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.unwrap_or(0) as u32;
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let shredder = Shredder::new(
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bank.slot(),
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bank.parent().unwrap().slot(),
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RECOMMENDED_FEC_RATE,
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keypair.clone(),
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(bank.tick_height() % bank.ticks_per_slot()) as u8,
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self.shred_version,
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)
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.expect("Expected to create a new shredder");
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let (data_shreds, coding_shreds, _) = shredder.entries_to_shreds(
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&receive_results.entries,
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last_tick_height == bank.max_tick_height(),
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next_shred_index,
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);
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let all_shreds = data_shreds
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.iter()
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.cloned()
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.chain(coding_shreds.iter().cloned())
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.collect::<Vec<_>>();
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let all_seeds: Vec<[u8; 32]> = all_shreds.iter().map(|s| s.seed()).collect();
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blocktree
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.insert_shreds(all_shreds, None, true)
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.expect("Failed to insert shreds in blocktree");
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// 3) Start broadcast step
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let bank_epoch = bank.get_leader_schedule_epoch(bank.slot());
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let stakes = staking_utils::staked_nodes_at_epoch(&bank, bank_epoch);
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let all_shred_bufs: Vec<Vec<u8>> = data_shreds
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.into_iter()
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.chain(coding_shreds.into_iter())
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.map(|s| s.payload)
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.collect();
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// Broadcast data
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cluster_info.read().unwrap().broadcast_shreds(
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sock,
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all_shred_bufs,
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&all_seeds,
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stakes.as_ref(),
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)?;
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Ok(())
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}
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}
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