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https://gitlab.com/pulsechaincom/erigon-pulse.git
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db1c2d2d82
This is the first PR in support of https://github.com/ledgerwatch/erigon/issues/5824. The phase 0 sepc https://github.com/ethereum/consensus-specs/blob/dev/specs/phase0/p2p-interface.md#global-topics specifies 6 global pubsub topics that CL nodes need to handle. This PR implements the `beacob_aggregate_and_proof` topic: https://github.com/ethereum/consensus-specs/blob/dev/specs/phase0/p2p-interface.md#beacon_aggregate_and_proof. The `AggregateAndProof` and `SignedAggregateAndProof` types are defined here: https://github.com/ethereum/consensus-specs/blob/dev/specs/phase0/validator.md#aggregateandproof. I followed the implementation of `SignedBeaconBlockBellatrix`, which has the following references: 1. cmd/lightclient/cltypes/types.go: defines the struct with relevant SSZ annotations on the fields. 2. cmd/lightclient/cltypes/clone.go: this just returns a reference to an empty object, so not super clear to me if it is necessary: 3. cmd/lightclient/rpc/common.go: this decodes gossip data, switching on the type of gossip message that is received. 4. cmd/lightclient/sentinel/service/service.go: this listens on the pubsub channel and notifies when a packet of the relevant type comes in. 5. cmd/lightclient/sentinel/pubsub.go: this defines the gossip topic struct. 6. cmd/lightclient/lightclient/subscriber.go: this is the lightclient interface for the incoming messages that come from the sentinel.
85 lines
2.7 KiB
Go
85 lines
2.7 KiB
Go
/*
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Copyright 2022 Erigon-Lightclient contributors
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package main
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import (
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"context"
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"fmt"
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"os"
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"github.com/ledgerwatch/erigon/cmd/lightclient/cltypes"
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"github.com/ledgerwatch/erigon/cmd/lightclient/rpc/lightrpc"
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"github.com/ledgerwatch/erigon/cmd/lightclient/sentinel"
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"github.com/ledgerwatch/erigon/cmd/lightclient/sentinel/service"
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lcCli "github.com/ledgerwatch/erigon/cmd/sentinel_node/cli"
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"github.com/ledgerwatch/erigon/cmd/sentinel_node/cli/flags"
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sentinelapp "github.com/ledgerwatch/erigon/turbo/app"
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"github.com/urfave/cli"
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"github.com/ledgerwatch/log/v3"
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)
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func main() {
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app := sentinelapp.MakeApp(runSentinelNode, flags.LightClientDefaultFlags)
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if err := app.Run(os.Args); err != nil {
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_, printErr := fmt.Fprintln(os.Stderr, err)
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if printErr != nil {
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log.Warn("Fprintln error", "err", printErr)
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}
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os.Exit(1)
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}
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}
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func runSentinelNode(cliCtx *cli.Context) {
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lcCfg, _ := lcCli.SetUpLightClientCfg(cliCtx)
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ctx := context.Background()
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log.Root().SetHandler(log.LvlFilterHandler(log.Lvl(lcCfg.LogLvl), log.StderrHandler))
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log.Info("[Sentinel] running sentinel with configuration", "cfg", lcCfg)
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sent, err := service.StartSentinelService(&sentinel.SentinelConfig{
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IpAddr: lcCfg.Addr,
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Port: int(lcCfg.Port),
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TCPPort: lcCfg.ServerTcpPort,
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GenesisConfig: lcCfg.GenesisCfg,
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NetworkConfig: lcCfg.NetworkCfg,
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BeaconConfig: lcCfg.BeaconCfg,
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NoDiscovery: lcCfg.NoDiscovery,
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}, &service.ServerConfig{Network: lcCfg.ServerProtocol, Addr: lcCfg.ServerAddr})
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if err != nil {
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log.Error("Could not start sentinel", "err", err)
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return
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}
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subscription, err := sent.SubscribeGossip(ctx, &lightrpc.EmptyRequest{})
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if err != nil {
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log.Error("Could not start sentinel", "err", err)
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return
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}
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log.Info("Sentinel started", "addr", lcCfg.ServerAddr)
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for {
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data, err := subscription.Recv()
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if err != nil {
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return
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}
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if data.Type != lightrpc.GossipType_AggregateAndProofGossipType {
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continue
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}
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block := &cltypes.SignedAggregateAndProof{}
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if err := block.UnmarshalSSZ(data.Data); err != nil {
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log.Error("Error", "err", err)
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continue
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}
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log.Info("Received", "msg", block)
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}
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}
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