mirror of
https://gitlab.com/pulsechaincom/erigon-pulse.git
synced 2025-01-06 02:52:19 +00:00
123d7379cc
* added subscription to gossip * added all handlers with logs * disconnecting from peers with goodbye message received * added time out for stream
81 lines
1.9 KiB
Go
81 lines
1.9 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 peers
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import (
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"sync"
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lru "github.com/hashicorp/golang-lru"
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"github.com/ledgerwatch/log/v3"
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"github.com/libp2p/go-libp2p/core/host"
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"github.com/libp2p/go-libp2p/core/peer"
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)
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const (
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maxBadPeers = 10_000
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DefaultMaxPeers = 33
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MaxBadResponses = 10
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)
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type Peers struct {
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badPeers *lru.Cache
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badResponses map[peer.ID]int
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host host.Host
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mu sync.Mutex
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}
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func New(host host.Host) *Peers {
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badPeers, err := lru.New(maxBadPeers)
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if err != nil {
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panic(err)
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}
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return &Peers{
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badPeers: badPeers,
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badResponses: make(map[peer.ID]int),
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host: host,
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}
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}
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func (p *Peers) IsBadPeer(pid peer.ID) bool {
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p.mu.Lock()
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defer p.mu.Unlock()
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return p.badPeers.Contains(pid)
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}
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func (p *Peers) Penalize(pid peer.ID) {
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p.mu.Lock()
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defer p.mu.Unlock()
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if _, has := p.badResponses[pid]; !has {
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p.badResponses[pid] = 1
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}
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p.badResponses[pid]++
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// Drop peer and delete the map element.
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if p.badResponses[pid] > MaxBadResponses {
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p.banBadPeer(pid)
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delete(p.badResponses, pid)
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}
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}
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func (p *Peers) banBadPeer(pid peer.ID) {
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p.DisconnectPeer(pid)
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p.badPeers.Add(pid, []byte{0})
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log.Warn("[Peers] bad peers has been banned", "peer-id", pid)
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}
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func (p *Peers) DisconnectPeer(pid peer.ID) {
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log.Info("[Peers] disconnecting from peer", "peer-id", pid)
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p.host.Peerstore().RemovePeer(pid)
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}
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