mirror of https://github.com/status-im/op-geth.git
Connect to previous peer
This commit is contained in:
obscuren
parent
66e309c5c4
commit
1549a29c9d
93
ethereum.go
93
ethereum.go
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@ -2,9 +2,11 @@ package eth
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import (
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"container/list"
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"encoding/json"
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"fmt"
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"math/rand"
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"net"
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"path"
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"strconv"
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"strings"
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"sync"
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@ -31,9 +33,7 @@ var ethlogger = ethlog.NewLogger("SERV")
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func eachPeer(peers *list.List, callback func(*Peer, *list.Element)) {
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// Loop thru the peers and close them (if we had them)
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for e := peers.Front(); e != nil; e = e.Next() {
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if peer, ok := e.Value.(*Peer); ok {
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callback(peer, e)
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}
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callback(e.Value.(*Peer), e)
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}
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}
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@ -399,47 +399,57 @@ func (s *Ethereum) Start(seed bool) {
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}
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func (s *Ethereum) Seed() {
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ethlogger.Debugln("Retrieving seed nodes")
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// Eth-Go Bootstrapping
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ips, er := net.LookupIP("seed.bysh.me")
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if er == nil {
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peers := []string{}
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var ips []string
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data, _ := ethutil.ReadAllFile(path.Join(ethutil.Config.ExecPath, "known_peers.json"))
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json.Unmarshal([]byte(data), &ips)
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if len(ips) > 0 {
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for _, ip := range ips {
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node := fmt.Sprintf("%s:%d", ip.String(), 30303)
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ethlogger.Debugln("Found DNS Go Peer:", node)
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peers = append(peers, node)
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ethlogger.Infoln("Connecting to previous peer ", ip)
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s.ConnectToPeer(ip)
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}
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s.ProcessPeerList(peers)
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}
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} else {
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ethlogger.Debugln("Retrieving seed nodes")
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// Official DNS Bootstrapping
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_, nodes, err := net.LookupSRV("eth", "tcp", "ethereum.org")
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if err == nil {
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peers := []string{}
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// Iterate SRV nodes
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for _, n := range nodes {
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target := n.Target
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port := strconv.Itoa(int(n.Port))
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// Resolve target to ip (Go returns list, so may resolve to multiple ips?)
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addr, err := net.LookupHost(target)
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if err == nil {
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for _, a := range addr {
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// Build string out of SRV port and Resolved IP
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peer := net.JoinHostPort(a, port)
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ethlogger.Debugln("Found DNS Bootstrap Peer:", peer)
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peers = append(peers, peer)
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}
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} else {
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ethlogger.Debugln("Couldn't resolve :", target)
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// Eth-Go Bootstrapping
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ips, er := net.LookupIP("seed.bysh.me")
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if er == nil {
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peers := []string{}
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for _, ip := range ips {
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node := fmt.Sprintf("%s:%d", ip.String(), 30303)
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ethlogger.Debugln("Found DNS Go Peer:", node)
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peers = append(peers, node)
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}
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s.ProcessPeerList(peers)
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}
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// Connect to Peer list
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s.ProcessPeerList(peers)
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}
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// XXX tmp
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s.ConnectToPeer(seedNodeAddress)
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// Official DNS Bootstrapping
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_, nodes, err := net.LookupSRV("eth", "tcp", "ethereum.org")
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if err == nil {
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peers := []string{}
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// Iterate SRV nodes
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for _, n := range nodes {
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target := n.Target
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port := strconv.Itoa(int(n.Port))
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// Resolve target to ip (Go returns list, so may resolve to multiple ips?)
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addr, err := net.LookupHost(target)
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if err == nil {
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for _, a := range addr {
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// Build string out of SRV port and Resolved IP
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peer := net.JoinHostPort(a, port)
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ethlogger.Debugln("Found DNS Bootstrap Peer:", peer)
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peers = append(peers, peer)
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}
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} else {
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ethlogger.Debugln("Couldn't resolve :", target)
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}
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}
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// Connect to Peer list
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s.ProcessPeerList(peers)
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}
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// XXX tmp
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s.ConnectToPeer(seedNodeAddress)
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}
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}
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func (s *Ethereum) peerHandler(listener net.Listener) {
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@ -459,6 +469,13 @@ func (s *Ethereum) Stop() {
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// Close the database
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defer s.db.Close()
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var ips []string
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eachPeer(s.peers, func(p *Peer, e *list.Element) {
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ips = append(ips, p.conn.RemoteAddr().String())
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})
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d, _ := json.MarshalIndent(ips, "", " ")
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ethutil.WriteFile(path.Join(ethutil.Config.ExecPath, "known_peers.json"), d)
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eachPeer(s.peers, func(p *Peer, e *list.Element) {
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p.Stop()
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})
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12
peer.go
12
peer.go
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@ -680,7 +680,7 @@ func (p *Peer) handleHandshake(msg *ethwire.Msg) {
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var (
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p2pVersion = c.Get(0).Uint()
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clientId = c.Get(1).Str()
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caps = c.Get(2).Raw()
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caps = c.Get(2)
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port = c.Get(3).Uint()
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pub = c.Get(4).Bytes()
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)
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@ -734,11 +734,17 @@ func (p *Peer) handleHandshake(msg *ethwire.Msg) {
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p.ethereum.PushPeer(p)
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p.ethereum.reactor.Post("peerList", p.ethereum.Peers())
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ethlogger.Infof("Added peer (%s) %d / %d (%v)\n", p.conn.RemoteAddr(), p.ethereum.Peers().Len(), p.ethereum.MaxPeers, caps)
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ethlogger.Infof("Added peer (%s) %d / %d (%v)\n", p.conn.RemoteAddr(), p.ethereum.Peers().Len(), p.ethereum.MaxPeers, caps.Raw())
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peerlogger.Debugln(p)
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p.pushStatus()
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capsIt := caps.NewIterator()
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for capsIt.Next() {
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switch capsIt.Value().Str() {
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case "eth":
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p.pushStatus()
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}
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}
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}
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func (p *Peer) String() string {
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