mirror of
https://github.com/serai-dex/serai.git
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Properly diversify ReqResMessageKind/GossipMessageKind
This commit is contained in:
Luke Parker
parent
f3ccf1cab0
commit
c3b6abf020
5 changed files with 181 additions and 137 deletions
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@ -22,7 +22,7 @@ use serai_db::{Get, DbTxn, Db, create_db};
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use processor_messages::coordinator::cosign_block_msg;
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use crate::{
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p2p::{CosignedBlock, P2pMessageKind, P2p},
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p2p::{CosignedBlock, GossipMessageKind, P2p},
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substrate::LatestCosignedBlock,
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};
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@ -323,7 +323,7 @@ impl<D: Db> CosignEvaluator<D> {
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for cosign in cosigns {
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let mut buf = vec![];
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cosign.serialize(&mut buf).unwrap();
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P2p::broadcast(&p2p, P2pMessageKind::CosignedBlock, buf).await;
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P2p::broadcast(&p2p, GossipMessageKind::CosignedBlock, buf).await;
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}
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sleep(Duration::from_secs(60)).await;
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}
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@ -260,7 +260,7 @@ async fn handle_processor_message<D: Db, P: P2p>(
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cosign_channel.send(cosigned_block).unwrap();
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let mut buf = vec![];
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cosigned_block.serialize(&mut buf).unwrap();
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P2p::broadcast(p2p, P2pMessageKind::CosignedBlock, buf).await;
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P2p::broadcast(p2p, GossipMessageKind::CosignedBlock, buf).await;
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None
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}
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// This causes an action on Substrate yet not on any Tributary
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@ -55,71 +55,112 @@ pub struct CosignedBlock {
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}
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#[derive(Clone, Copy, PartialEq, Eq, Hash, Debug)]
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pub enum P2pMessageKind {
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pub enum ReqResMessageKind {
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KeepAlive,
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Tributary([u8; 32]),
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Heartbeat([u8; 32]),
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Block([u8; 32]),
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}
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impl ReqResMessageKind {
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pub fn read<R: Read>(reader: &mut R) -> Option<ReqResMessageKind> {
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let mut kind = [0; 1];
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reader.read_exact(&mut kind).ok()?;
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match kind[0] {
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0 => Some(ReqResMessageKind::KeepAlive),
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1 => Some({
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let mut genesis = [0; 32];
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reader.read_exact(&mut genesis).ok()?;
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ReqResMessageKind::Heartbeat(genesis)
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}),
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2 => Some({
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let mut genesis = [0; 32];
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reader.read_exact(&mut genesis).ok()?;
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ReqResMessageKind::Block(genesis)
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}),
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_ => None,
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}
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}
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pub fn serialize(&self) -> Vec<u8> {
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match self {
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ReqResMessageKind::KeepAlive => vec![0],
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ReqResMessageKind::Heartbeat(genesis) => {
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let mut res = vec![1];
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res.extend(genesis);
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res
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}
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ReqResMessageKind::Block(genesis) => {
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let mut res = vec![2];
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res.extend(genesis);
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res
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}
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}
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}
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}
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#[derive(Clone, Copy, PartialEq, Eq, Hash, Debug)]
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pub enum GossipMessageKind {
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Tributary([u8; 32]),
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CosignedBlock,
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}
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impl GossipMessageKind {
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pub fn read<R: Read>(reader: &mut R) -> Option<GossipMessageKind> {
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let mut kind = [0; 1];
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reader.read_exact(&mut kind).ok()?;
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match kind[0] {
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0 => Some({
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let mut genesis = [0; 32];
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reader.read_exact(&mut genesis).ok()?;
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GossipMessageKind::Tributary(genesis)
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}),
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1 => Some(GossipMessageKind::CosignedBlock),
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_ => None,
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}
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}
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pub fn serialize(&self) -> Vec<u8> {
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match self {
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GossipMessageKind::Tributary(genesis) => {
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let mut res = vec![0];
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res.extend(genesis);
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res
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}
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GossipMessageKind::CosignedBlock => {
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vec![1]
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}
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}
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}
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}
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#[derive(Clone, Copy, PartialEq, Eq, Hash, Debug)]
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pub enum P2pMessageKind {
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ReqRes(ReqResMessageKind),
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Gossip(GossipMessageKind),
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}
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impl P2pMessageKind {
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fn genesis(&self) -> Option<[u8; 32]> {
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match self {
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P2pMessageKind::KeepAlive | P2pMessageKind::CosignedBlock => None,
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P2pMessageKind::Tributary(genesis) |
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P2pMessageKind::Heartbeat(genesis) |
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P2pMessageKind::Block(genesis) => Some(*genesis),
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P2pMessageKind::ReqRes(ReqResMessageKind::KeepAlive) |
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P2pMessageKind::Gossip(GossipMessageKind::CosignedBlock) => None,
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P2pMessageKind::ReqRes(
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ReqResMessageKind::Heartbeat(genesis) | ReqResMessageKind::Block(genesis),
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) |
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P2pMessageKind::Gossip(GossipMessageKind::Tributary(genesis)) => Some(*genesis),
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}
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}
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}
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fn serialize(&self) -> Vec<u8> {
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match self {
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P2pMessageKind::KeepAlive => vec![0],
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P2pMessageKind::Tributary(genesis) => {
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let mut res = vec![1];
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res.extend(genesis);
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res
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}
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P2pMessageKind::Heartbeat(genesis) => {
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let mut res = vec![2];
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res.extend(genesis);
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res
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}
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P2pMessageKind::Block(genesis) => {
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let mut res = vec![3];
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res.extend(genesis);
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res
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}
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P2pMessageKind::CosignedBlock => {
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vec![4]
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}
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}
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impl From<ReqResMessageKind> for P2pMessageKind {
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fn from(kind: ReqResMessageKind) -> P2pMessageKind {
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P2pMessageKind::ReqRes(kind)
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}
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}
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fn read<R: Read>(reader: &mut R) -> Option<P2pMessageKind> {
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let mut kind = [0; 1];
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reader.read_exact(&mut kind).ok()?;
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match kind[0] {
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0 => Some(P2pMessageKind::KeepAlive),
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1 => Some({
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let mut genesis = [0; 32];
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reader.read_exact(&mut genesis).ok()?;
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P2pMessageKind::Tributary(genesis)
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}),
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2 => Some({
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let mut genesis = [0; 32];
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reader.read_exact(&mut genesis).ok()?;
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P2pMessageKind::Heartbeat(genesis)
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}),
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3 => Some({
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let mut genesis = [0; 32];
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reader.read_exact(&mut genesis).ok()?;
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P2pMessageKind::Block(genesis)
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}),
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4 => Some(P2pMessageKind::CosignedBlock),
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_ => None,
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}
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impl From<GossipMessageKind> for P2pMessageKind {
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fn from(kind: GossipMessageKind) -> P2pMessageKind {
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P2pMessageKind::Gossip(kind)
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}
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}
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@ -139,15 +180,19 @@ pub trait P2p: Send + Sync + Clone + fmt::Debug + TributaryP2p {
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async fn send_raw(&self, to: Self::Id, msg: Vec<u8>);
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async fn broadcast_raw(&self, kind: P2pMessageKind, msg: Vec<u8>);
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async fn receive_raw(&self) -> (Self::Id, Vec<u8>);
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async fn receive(&self) -> Message<Self>;
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async fn send(&self, to: Self::Id, kind: P2pMessageKind, msg: Vec<u8>) {
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async fn send(&self, to: Self::Id, kind: ReqResMessageKind, msg: Vec<u8>) {
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let mut actual_msg = kind.serialize();
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actual_msg.extend(msg);
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self.send_raw(to, actual_msg).await;
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}
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async fn broadcast(&self, kind: P2pMessageKind, msg: Vec<u8>) {
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let mut actual_msg = kind.serialize();
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async fn broadcast(&self, kind: impl Send + Into<P2pMessageKind>, msg: Vec<u8>) {
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let kind = kind.into();
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let mut actual_msg = match kind {
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P2pMessageKind::ReqRes(kind) => kind.serialize(),
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P2pMessageKind::Gossip(kind) => kind.serialize(),
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};
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actual_msg.extend(msg);
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/*
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log::trace!(
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@ -163,35 +208,6 @@ pub trait P2p: Send + Sync + Clone + fmt::Debug + TributaryP2p {
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*/
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self.broadcast_raw(kind, actual_msg).await;
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}
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async fn receive(&self) -> Message<Self> {
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let (sender, kind, msg) = loop {
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let (sender, msg) = self.receive_raw().await;
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if msg.is_empty() {
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log::error!("empty p2p message from {sender:?}");
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continue;
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}
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let mut msg_ref = msg.as_ref();
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let Some(kind) = P2pMessageKind::read::<&[u8]>(&mut msg_ref) else {
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log::error!("invalid p2p message kind from {sender:?}");
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continue;
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};
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break (sender, kind, msg_ref.to_vec());
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};
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/*
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log::trace!(
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"received p2p message (kind {})",
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match kind {
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P2pMessageKind::KeepAlive => "KeepAlive".to_string(),
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P2pMessageKind::Tributary(genesis) => format!("Tributary({})", hex::encode(genesis)),
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P2pMessageKind::Heartbeat(genesis) => format!("Heartbeat({})", hex::encode(genesis)),
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P2pMessageKind::Block(genesis) => format!("Block({})", hex::encode(genesis)),
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P2pMessageKind::CosignedBlock => "CosignedBlock".to_string(),
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}
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);
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*/
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Message { sender, kind, msg }
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}
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}
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#[derive(NetworkBehaviour)]
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@ -206,7 +222,7 @@ pub struct LibP2p {
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subscribe: Arc<Mutex<mpsc::UnboundedSender<(bool, ValidatorSet, [u8; 32])>>>,
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send: Arc<Mutex<mpsc::UnboundedSender<(PeerId, Vec<u8>)>>>,
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broadcast: Arc<Mutex<mpsc::UnboundedSender<(P2pMessageKind, Vec<u8>)>>>,
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receive: Arc<Mutex<mpsc::UnboundedReceiver<(PeerId, Vec<u8>)>>>,
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receive: Arc<Mutex<mpsc::UnboundedReceiver<Message<Self>>>>,
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}
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impl fmt::Debug for LibP2p {
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fn fmt(&self, fmt: &mut fmt::Formatter<'_>) -> fmt::Result {
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@ -502,8 +518,7 @@ impl LibP2p {
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msg = broadcast_recv.recv() => {
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let (kind, msg): (P2pMessageKind, Vec<u8>) =
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msg.expect("broadcast_recv closed. are we shutting down?");
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if matches!(kind, P2pMessageKind::KeepAlive) ||
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matches!(kind, P2pMessageKind::Heartbeat(_)) {
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if matches!(kind, P2pMessageKind::ReqRes(_)) {
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// Use request/response
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for peer_id in swarm.connected_peers().copied().collect::<Vec<_>>() {
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swarm.behaviour_mut().reqres.send_request(&peer_id, msg.clone());
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@ -600,17 +615,27 @@ impl LibP2p {
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RrMessage::Request { request, .. } => request,
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RrMessage::Response { response, .. } => response,
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};
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receive_send
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.send((peer, message))
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.expect("receive_send closed. are we shutting down?");
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let mut msg_ref = message.as_slice();
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let Some(kind) = ReqResMessageKind::read(&mut msg_ref) else { continue };
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let message = Message {
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sender: peer,
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kind: P2pMessageKind::ReqRes(kind),
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msg: msg_ref.to_vec(),
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};
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receive_send.send(message).expect("receive_send closed. are we shutting down?");
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}
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Some(SwarmEvent::Behaviour(BehaviorEvent::Gossipsub(
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GsEvent::Message { propagation_source, message, .. },
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))) => {
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// TODO: Ban Heartbeat/Blocks received over gossipsub
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receive_send
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.send((propagation_source, message.data))
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.expect("receive_send closed. are we shutting down?");
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let mut msg_ref = message.data.as_slice();
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let Some(kind) = GossipMessageKind::read(&mut msg_ref) else { continue };
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let message = Message {
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sender: propagation_source,
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kind: P2pMessageKind::Gossip(kind),
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msg: msg_ref.to_vec(),
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};
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receive_send.send(message).expect("receive_send closed. are we shutting down?");
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}
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_ => {}
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}
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@ -642,12 +667,13 @@ impl LibP2p {
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// (where a finalized block only occurs due to network activity), meaning this won't be
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// run
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() = tokio::time::sleep(Duration::from_secs(80).saturating_sub(time_since_last)) => {
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broadcast_raw(
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&mut swarm,
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&mut time_of_last_p2p_message,
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None,
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P2pMessageKind::KeepAlive.serialize()
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);
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time_of_last_p2p_message = Instant::now();
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for peer_id in swarm.connected_peers().copied().collect::<Vec<_>>() {
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swarm
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.behaviour_mut()
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.reqres
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.send_request(&peer_id, ReqResMessageKind::KeepAlive.serialize());
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}
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}
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}
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}
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@ -700,7 +726,7 @@ impl P2p for LibP2p {
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// TODO: We only have a single handle call this. Differentiate Send/Recv to remove this constant
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// lock acquisition?
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async fn receive_raw(&self) -> (Self::Id, Vec<u8>) {
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async fn receive(&self) -> Message<Self> {
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self.receive.lock().await.recv().await.expect("receive_recv closed. are we shutting down?")
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}
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}
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@ -708,7 +734,7 @@ impl P2p for LibP2p {
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#[async_trait]
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impl TributaryP2p for LibP2p {
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async fn broadcast(&self, genesis: [u8; 32], msg: Vec<u8>) {
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<Self as P2p>::broadcast(self, P2pMessageKind::Tributary(genesis), msg).await
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<Self as P2p>::broadcast(self, GossipMessageKind::Tributary(genesis), msg).await
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}
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}
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@ -751,7 +777,7 @@ pub async fn heartbeat_tributaries_task<D: Db, P: P2p>(
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.expect("system clock is wrong")
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.as_secs();
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msg.extend(time.to_le_bytes());
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P2p::broadcast(&p2p, P2pMessageKind::Heartbeat(tributary.genesis()), msg).await;
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P2p::broadcast(&p2p, ReqResMessageKind::Heartbeat(tributary.genesis()), msg).await;
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}
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}
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@ -795,20 +821,12 @@ pub async fn handle_p2p_task<D: Db, P: P2p>(
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break;
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};
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match msg.kind {
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P2pMessageKind::KeepAlive => {}
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P2pMessageKind::Tributary(msg_genesis) => {
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assert_eq!(msg_genesis, genesis);
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log::trace!("handling message for tributary {:?}", spec_set);
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if tributary.tributary.handle_message(&msg.msg).await {
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P2p::broadcast(&p2p, msg.kind, msg.msg).await;
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}
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}
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P2pMessageKind::ReqRes(ReqResMessageKind::KeepAlive) => {}
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// TODO: Slash on Heartbeat which justifies a response, since the node
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// obviously was offline and we must now use our bandwidth to compensate for
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// them?
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P2pMessageKind::Heartbeat(msg_genesis) => {
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P2pMessageKind::ReqRes(ReqResMessageKind::Heartbeat(msg_genesis)) => {
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assert_eq!(msg_genesis, genesis);
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if msg.msg.len() != 40 {
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log::error!("validator sent invalid heartbeat");
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@ -848,13 +866,13 @@ pub async fn handle_p2p_task<D: Db, P: P2p>(
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res.extend(reader.commit(&next).unwrap());
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// Also include the timestamp used within the Heartbeat
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res.extend(&msg.msg[32 .. 40]);
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p2p.send(msg.sender, P2pMessageKind::Block(genesis), res).await;
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p2p.send(msg.sender, ReqResMessageKind::Block(genesis), res).await;
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}
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}
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});
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}
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P2pMessageKind::Block(msg_genesis) => {
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P2pMessageKind::ReqRes(ReqResMessageKind::Block(msg_genesis)) => {
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assert_eq!(msg_genesis, genesis);
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let mut msg_ref: &[u8] = msg.msg.as_ref();
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let Ok(block) = Block::<Transaction>::read(&mut msg_ref) else {
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@ -873,7 +891,15 @@ pub async fn handle_p2p_task<D: Db, P: P2p>(
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);
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}
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P2pMessageKind::CosignedBlock => unreachable!(),
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P2pMessageKind::Gossip(GossipMessageKind::Tributary(msg_genesis)) => {
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assert_eq!(msg_genesis, genesis);
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log::trace!("handling message for tributary {:?}", spec_set);
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if tributary.tributary.handle_message(&msg.msg).await {
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P2p::broadcast(&p2p, msg.kind, msg.msg).await;
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}
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}
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P2pMessageKind::Gossip(GossipMessageKind::CosignedBlock) => unreachable!(),
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}
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}
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}
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@ -893,15 +919,16 @@ pub async fn handle_p2p_task<D: Db, P: P2p>(
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loop {
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let msg = p2p.receive().await;
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match msg.kind {
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P2pMessageKind::KeepAlive => {}
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P2pMessageKind::Tributary(genesis) |
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P2pMessageKind::Heartbeat(genesis) |
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P2pMessageKind::Block(genesis) => {
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P2pMessageKind::ReqRes(ReqResMessageKind::KeepAlive) => {}
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P2pMessageKind::Gossip(GossipMessageKind::Tributary(genesis)) |
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P2pMessageKind::ReqRes(
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||||
ReqResMessageKind::Heartbeat(genesis) | ReqResMessageKind::Block(genesis),
|
||||
) => {
|
||||
if let Some(channel) = channels.read().await.get(&genesis) {
|
||||
channel.send(msg).unwrap();
|
||||
}
|
||||
}
|
||||
P2pMessageKind::CosignedBlock => {
|
||||
P2pMessageKind::Gossip(GossipMessageKind::CosignedBlock) => {
|
||||
let Ok(msg) = CosignedBlock::deserialize_reader(&mut msg.msg.as_slice()) else {
|
||||
log::error!("received CosignedBlock message with invalidly serialized contents");
|
||||
continue;
|
||||
|
|
|
|||
|
|
@ -14,7 +14,7 @@ use tokio::sync::RwLock;
|
|||
|
||||
use crate::{
|
||||
processors::{Message, Processors},
|
||||
TributaryP2p, P2pMessageKind, P2p,
|
||||
TributaryP2p, ReqResMessageKind, GossipMessageKind, P2pMessageKind, Message as P2pMessage, P2p,
|
||||
};
|
||||
|
||||
pub mod tributary;
|
||||
|
|
@ -45,7 +45,10 @@ impl Processors for MemProcessors {
|
|||
|
||||
#[allow(clippy::type_complexity)]
|
||||
#[derive(Clone, Debug)]
|
||||
pub struct LocalP2p(usize, pub Arc<RwLock<(HashSet<Vec<u8>>, Vec<VecDeque<(usize, Vec<u8>)>>)>>);
|
||||
pub struct LocalP2p(
|
||||
usize,
|
||||
pub Arc<RwLock<(HashSet<Vec<u8>>, Vec<VecDeque<(usize, P2pMessageKind, Vec<u8>)>>)>>,
|
||||
);
|
||||
|
||||
impl LocalP2p {
|
||||
pub fn new(validators: usize) -> Vec<LocalP2p> {
|
||||
|
|
@ -66,10 +69,12 @@ impl P2p for LocalP2p {
|
|||
async fn unsubscribe(&self, _set: ValidatorSet, _genesis: [u8; 32]) {}
|
||||
|
||||
async fn send_raw(&self, to: Self::Id, msg: Vec<u8>) {
|
||||
self.1.write().await.1[to].push_back((self.0, msg));
|
||||
let mut msg_ref = msg.as_slice();
|
||||
let kind = ReqResMessageKind::read(&mut msg_ref).unwrap();
|
||||
self.1.write().await.1[to].push_back((self.0, P2pMessageKind::ReqRes(kind), msg_ref.to_vec()));
|
||||
}
|
||||
|
||||
async fn broadcast_raw(&self, _kind: P2pMessageKind, msg: Vec<u8>) {
|
||||
async fn broadcast_raw(&self, kind: P2pMessageKind, msg: Vec<u8>) {
|
||||
// Content-based deduplication
|
||||
let mut lock = self.1.write().await;
|
||||
{
|
||||
|
|
@ -81,19 +86,26 @@ impl P2p for LocalP2p {
|
|||
}
|
||||
let queues = &mut lock.1;
|
||||
|
||||
let kind_len = (match kind {
|
||||
P2pMessageKind::ReqRes(kind) => kind.serialize(),
|
||||
P2pMessageKind::Gossip(kind) => kind.serialize(),
|
||||
})
|
||||
.len();
|
||||
let msg = msg[kind_len ..].to_vec();
|
||||
|
||||
for (i, msg_queue) in queues.iter_mut().enumerate() {
|
||||
if i == self.0 {
|
||||
continue;
|
||||
}
|
||||
msg_queue.push_back((self.0, msg.clone()));
|
||||
msg_queue.push_back((self.0, kind, msg.clone()));
|
||||
}
|
||||
}
|
||||
|
||||
async fn receive_raw(&self) -> (Self::Id, Vec<u8>) {
|
||||
async fn receive(&self) -> P2pMessage<Self> {
|
||||
// This is a cursed way to implement an async read from a Vec
|
||||
loop {
|
||||
if let Some(res) = self.1.write().await.1[self.0].pop_front() {
|
||||
return res;
|
||||
if let Some((sender, kind, msg)) = self.1.write().await.1[self.0].pop_front() {
|
||||
return P2pMessage { sender, kind, msg };
|
||||
}
|
||||
tokio::time::sleep(std::time::Duration::from_millis(100)).await;
|
||||
}
|
||||
|
|
@ -103,6 +115,11 @@ impl P2p for LocalP2p {
|
|||
#[async_trait]
|
||||
impl TributaryP2p for LocalP2p {
|
||||
async fn broadcast(&self, genesis: [u8; 32], msg: Vec<u8>) {
|
||||
<Self as P2p>::broadcast(self, P2pMessageKind::Tributary(genesis), msg).await
|
||||
<Self as P2p>::broadcast(
|
||||
self,
|
||||
P2pMessageKind::Gossip(GossipMessageKind::Tributary(genesis)),
|
||||
msg,
|
||||
)
|
||||
.await
|
||||
}
|
||||
}
|
||||
|
|
|
|||
|
|
@ -26,7 +26,7 @@ use serai_db::MemDb;
|
|||
use tributary::Tributary;
|
||||
|
||||
use crate::{
|
||||
P2pMessageKind, P2p,
|
||||
GossipMessageKind, P2pMessageKind, P2p,
|
||||
tributary::{Transaction, TributarySpec},
|
||||
tests::LocalP2p,
|
||||
};
|
||||
|
|
@ -98,7 +98,7 @@ pub async fn run_tributaries(
|
|||
for (p2p, tributary) in &mut tributaries {
|
||||
while let Poll::Ready(msg) = poll!(p2p.receive()) {
|
||||
match msg.kind {
|
||||
P2pMessageKind::Tributary(genesis) => {
|
||||
P2pMessageKind::Gossip(GossipMessageKind::Tributary(genesis)) => {
|
||||
assert_eq!(genesis, tributary.genesis());
|
||||
if tributary.handle_message(&msg.msg).await {
|
||||
p2p.broadcast(msg.kind, msg.msg).await;
|
||||
|
|
@ -173,7 +173,7 @@ async fn tributary_test() {
|
|||
for (p2p, tributary) in &mut tributaries {
|
||||
while let Poll::Ready(msg) = poll!(p2p.receive()) {
|
||||
match msg.kind {
|
||||
P2pMessageKind::Tributary(genesis) => {
|
||||
P2pMessageKind::Gossip(GossipMessageKind::Tributary(genesis)) => {
|
||||
assert_eq!(genesis, tributary.genesis());
|
||||
tributary.handle_message(&msg.msg).await;
|
||||
}
|
||||
|
|
@ -199,7 +199,7 @@ async fn tributary_test() {
|
|||
for (p2p, tributary) in &mut tributaries {
|
||||
while let Poll::Ready(msg) = poll!(p2p.receive()) {
|
||||
match msg.kind {
|
||||
P2pMessageKind::Tributary(genesis) => {
|
||||
P2pMessageKind::Gossip(GossipMessageKind::Tributary(genesis)) => {
|
||||
assert_eq!(genesis, tributary.genesis());
|
||||
tributary.handle_message(&msg.msg).await;
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in a new issue