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Added LightClientBootstrap V1 (#3711)

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## Issue Addressed

Partially addresses #3651

## Proposed Changes

Adds server-side support for light_client_bootstrap_v1 topic

## Additional Info

This PR, creates each time a bootstrap without using cache, I do not know how necessary a cache is in this case as this topic is not supposed to be called frequently and IMHO we can just prevent abuse by using the limiter, but let me know what you think or if there is any caveat to this, or if it is necessary only for the sake of good practice.


Co-authored-by: Pawan Dhananjay <pawandhananjay@gmail.com>
This commit is contained in:
Giulio rebuffo
2022-11-25 05:19:00 +00:00
parent bf533c8e42
commit d5a2de759b
17 changed files with 271 additions and 69 deletions
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18
beacon_node/lighthouse_network/src/rpc/codec/ssz_snappy.rs
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@@ -16,8 +16,8 @@ use std::marker::PhantomData;
use std::sync::Arc;
use tokio_util::codec::{Decoder, Encoder};
use types::{
EthSpec, ForkContext, ForkName, SignedBeaconBlock, SignedBeaconBlockAltair,
SignedBeaconBlockBase, SignedBeaconBlockMerge,
light_client_bootstrap::LightClientBootstrap, EthSpec, ForkContext, ForkName, Hash256,
SignedBeaconBlock, SignedBeaconBlockAltair, SignedBeaconBlockBase, SignedBeaconBlockMerge,
};
use unsigned_varint::codec::Uvi;
@@ -70,6 +70,7 @@ impl<TSpec: EthSpec> Encoder<RPCCodedResponse<TSpec>> for SSZSnappyInboundCodec<
RPCResponse::Status(res) => res.as_ssz_bytes(),
RPCResponse::BlocksByRange(res) => res.as_ssz_bytes(),
RPCResponse::BlocksByRoot(res) => res.as_ssz_bytes(),
RPCResponse::LightClientBootstrap(res) => res.as_ssz_bytes(),
RPCResponse::Pong(res) => res.data.as_ssz_bytes(),
RPCResponse::MetaData(res) =>
// Encode the correct version of the MetaData response based on the negotiated version.
@@ -230,6 +231,7 @@ impl<TSpec: EthSpec> Encoder<OutboundRequest<TSpec>> for SSZSnappyOutboundCodec<
OutboundRequest::BlocksByRoot(req) => req.block_roots.as_ssz_bytes(),
OutboundRequest::Ping(req) => req.as_ssz_bytes(),
OutboundRequest::MetaData(_) => return Ok(()), // no metadata to encode
OutboundRequest::LightClientBootstrap(req) => req.as_ssz_bytes(),
};
// SSZ encoded bytes should be within `max_packet_size`
if bytes.len() > self.max_packet_size {
@@ -472,7 +474,11 @@ fn handle_v1_request<T: EthSpec>(
Protocol::Ping => Ok(Some(InboundRequest::Ping(Ping {
data: u64::from_ssz_bytes(decoded_buffer)?,
}))),
Protocol::LightClientBootstrap => Ok(Some(InboundRequest::LightClientBootstrap(
LightClientBootstrapRequest {
root: Hash256::from_ssz_bytes(decoded_buffer)?,
},
))),
// MetaData requests return early from InboundUpgrade and do not reach the decoder.
// Handle this case just for completeness.
Protocol::MetaData => {
@@ -544,6 +550,9 @@ fn handle_v1_response<T: EthSpec>(
Protocol::MetaData => Ok(Some(RPCResponse::MetaData(MetaData::V1(
MetaDataV1::from_ssz_bytes(decoded_buffer)?,
)))),
Protocol::LightClientBootstrap => Ok(Some(RPCResponse::LightClientBootstrap(
LightClientBootstrap::from_ssz_bytes(decoded_buffer)?,
))),
}
}
@@ -867,6 +876,9 @@ mod tests {
OutboundRequest::MetaData(metadata) => {
assert_eq!(decoded, InboundRequest::MetaData(metadata))
}
OutboundRequest::LightClientBootstrap(bootstrap) => {
assert_eq!(decoded, InboundRequest::LightClientBootstrap(bootstrap))
}
}
}
}