mirror of https://github.com/poanetwork/quorum.git
874 lines
21 KiB
Go
874 lines
21 KiB
Go
package eth
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import (
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"bytes"
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"container/list"
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"fmt"
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"math"
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"math/big"
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"net"
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"strconv"
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"strings"
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"sync/atomic"
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"time"
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"github.com/ethereum/eth-go/ethchain"
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"github.com/ethereum/eth-go/ethlog"
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"github.com/ethereum/eth-go/ethutil"
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"github.com/ethereum/eth-go/ethwire"
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)
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var peerlogger = ethlog.NewLogger("PEER")
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const (
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// The size of the output buffer for writing messages
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outputBufferSize = 50
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// Current protocol version
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ProtocolVersion = 33
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// Current P2P version
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P2PVersion = 0
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// Ethereum network version
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NetVersion = 0
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// Interval for ping/pong message
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pingPongTimer = 2 * time.Second
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)
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type DiscReason byte
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const (
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// Values are given explicitly instead of by iota because these values are
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// defined by the wire protocol spec; it is easier for humans to ensure
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// correctness when values are explicit.
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DiscRequested DiscReason = iota
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DiscReTcpSysErr
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DiscBadProto
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DiscBadPeer
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DiscTooManyPeers
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DiscConnDup
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DiscGenesisErr
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DiscProtoErr
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DiscQuitting
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)
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var discReasonToString = []string{
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"requested",
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"TCP sys error",
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"bad protocol",
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"useless peer",
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"too many peers",
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"already connected",
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"wrong genesis block",
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"incompatible network",
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"quitting",
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}
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func (d DiscReason) String() string {
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if len(discReasonToString) < int(d) {
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return "Unknown"
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}
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return discReasonToString[d]
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}
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// Peer capabilities
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type Caps byte
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const (
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CapPeerDiscTy Caps = 1 << iota
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CapTxTy
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CapChainTy
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CapDefault = CapChainTy | CapTxTy | CapPeerDiscTy
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)
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var capsToString = map[Caps]string{
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CapPeerDiscTy: "Peer discovery",
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CapTxTy: "Transaction relaying",
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CapChainTy: "Block chain relaying",
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}
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func (c Caps) IsCap(cap Caps) bool {
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return c&cap > 0
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}
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func (c Caps) String() string {
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var caps []string
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if c.IsCap(CapPeerDiscTy) {
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caps = append(caps, capsToString[CapPeerDiscTy])
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}
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if c.IsCap(CapChainTy) {
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caps = append(caps, capsToString[CapChainTy])
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}
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if c.IsCap(CapTxTy) {
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caps = append(caps, capsToString[CapTxTy])
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}
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return strings.Join(caps, " | ")
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}
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type Peer struct {
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// Ethereum interface
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ethereum *Ethereum
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// Net connection
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conn net.Conn
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// Output queue which is used to communicate and handle messages
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outputQueue chan *ethwire.Msg
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// Quit channel
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quit chan bool
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// Determines whether it's an inbound or outbound peer
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inbound bool
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// Flag for checking the peer's connectivity state
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connected int32
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disconnect int32
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// Last known message send
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lastSend time.Time
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// Indicated whether a verack has been send or not
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// This flag is used by writeMessage to check if messages are allowed
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// to be send or not. If no version is known all messages are ignored.
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versionKnown bool
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statusKnown bool
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// Last received pong message
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lastPong int64
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lastBlockReceived time.Time
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doneFetchingHashes bool
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host []byte
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port uint16
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caps Caps
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td *big.Int
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bestHash []byte
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lastReceivedHash []byte
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requestedHashes [][]byte
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// This peer's public key
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pubkey []byte
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// Indicated whether the node is catching up or not
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catchingUp bool
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diverted bool
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blocksRequested int
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version string
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// We use this to give some kind of pingtime to a node, not very accurate, could be improved.
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pingTime time.Duration
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pingStartTime time.Time
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lastRequestedBlock *ethchain.Block
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protocolCaps *ethutil.Value
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}
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func NewPeer(conn net.Conn, ethereum *Ethereum, inbound bool) *Peer {
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pubkey := ethereum.KeyManager().PublicKey()[1:]
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return &Peer{
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outputQueue: make(chan *ethwire.Msg, outputBufferSize),
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quit: make(chan bool),
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ethereum: ethereum,
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conn: conn,
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inbound: inbound,
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disconnect: 0,
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connected: 1,
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port: 30303,
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pubkey: pubkey,
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blocksRequested: 10,
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caps: ethereum.ServerCaps(),
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version: ethereum.ClientIdentity().String(),
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protocolCaps: ethutil.NewValue(nil),
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td: big.NewInt(0),
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doneFetchingHashes: true,
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}
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}
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func NewOutboundPeer(addr string, ethereum *Ethereum, caps Caps) *Peer {
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p := &Peer{
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outputQueue: make(chan *ethwire.Msg, outputBufferSize),
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quit: make(chan bool),
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ethereum: ethereum,
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inbound: false,
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connected: 0,
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disconnect: 0,
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port: 30303,
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caps: caps,
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version: ethereum.ClientIdentity().String(),
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protocolCaps: ethutil.NewValue(nil),
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td: big.NewInt(0),
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doneFetchingHashes: true,
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}
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// Set up the connection in another goroutine so we don't block the main thread
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go func() {
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conn, err := p.Connect(addr)
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if err != nil {
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//peerlogger.Debugln("Connection to peer failed. Giving up.", err)
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p.Stop()
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return
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}
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p.conn = conn
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// Atomically set the connection state
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atomic.StoreInt32(&p.connected, 1)
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atomic.StoreInt32(&p.disconnect, 0)
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p.Start()
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}()
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return p
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}
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func (self *Peer) Connect(addr string) (conn net.Conn, err error) {
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const maxTries = 3
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for attempts := 0; attempts < maxTries; attempts++ {
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conn, err = net.DialTimeout("tcp", addr, 10*time.Second)
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if err != nil {
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time.Sleep(time.Duration(attempts*20) * time.Second)
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continue
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}
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// Success
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return
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}
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return
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}
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// Getters
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func (p *Peer) PingTime() string {
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return p.pingTime.String()
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}
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func (p *Peer) Inbound() bool {
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return p.inbound
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}
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func (p *Peer) LastSend() time.Time {
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return p.lastSend
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}
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func (p *Peer) LastPong() int64 {
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return p.lastPong
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}
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func (p *Peer) Host() []byte {
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return p.host
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}
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func (p *Peer) Port() uint16 {
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return p.port
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}
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func (p *Peer) Version() string {
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return p.version
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}
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func (p *Peer) Connected() *int32 {
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return &p.connected
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}
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// Setters
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func (p *Peer) SetVersion(version string) {
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p.version = version
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}
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// Outputs any RLP encoded data to the peer
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func (p *Peer) QueueMessage(msg *ethwire.Msg) {
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if atomic.LoadInt32(&p.connected) != 1 {
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return
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}
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p.outputQueue <- msg
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}
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func (p *Peer) writeMessage(msg *ethwire.Msg) {
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// Ignore the write if we're not connected
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if atomic.LoadInt32(&p.connected) != 1 {
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return
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}
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if !p.versionKnown {
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switch msg.Type {
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case ethwire.MsgHandshakeTy: // Ok
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default: // Anything but ack is allowed
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return
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}
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} else {
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/*
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if !p.statusKnown {
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switch msg.Type {
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case ethwire.MsgStatusTy: // Ok
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default: // Anything but ack is allowed
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return
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}
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}
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*/
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}
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peerlogger.DebugDetailf("(%v) <= %v\n", p.conn.RemoteAddr(), formatMessage(msg))
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err := ethwire.WriteMessage(p.conn, msg)
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if err != nil {
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peerlogger.Debugln(" Can't send message:", err)
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// Stop the client if there was an error writing to it
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p.Stop()
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return
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}
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}
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// Outbound message handler. Outbound messages are handled here
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func (p *Peer) HandleOutbound() {
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// The ping timer. Makes sure that every 2 minutes a ping is send to the peer
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pingTimer := time.NewTicker(pingPongTimer)
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serviceTimer := time.NewTicker(10 * time.Second)
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out:
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for {
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skip:
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select {
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// Main message queue. All outbound messages are processed through here
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case msg := <-p.outputQueue:
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if !p.statusKnown {
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switch msg.Type {
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case ethwire.MsgGetTxsTy, ethwire.MsgTxTy, ethwire.MsgGetBlockHashesTy, ethwire.MsgBlockHashesTy, ethwire.MsgGetBlocksTy, ethwire.MsgBlockTy:
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break skip
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}
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}
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p.writeMessage(msg)
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p.lastSend = time.Now()
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// Ping timer
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case <-pingTimer.C:
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/*
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timeSince := time.Since(time.Unix(p.lastPong, 0))
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if !p.pingStartTime.IsZero() && p.lastPong != 0 && timeSince > (pingPongTimer+30*time.Second) {
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peerlogger.Infof("Peer did not respond to latest pong fast enough, it took %s, disconnecting.\n", timeSince)
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p.Stop()
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return
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}
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*/
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p.writeMessage(ethwire.NewMessage(ethwire.MsgPingTy, ""))
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p.pingStartTime = time.Now()
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// Service timer takes care of peer broadcasting, transaction
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// posting or block posting
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case <-serviceTimer.C:
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p.QueueMessage(ethwire.NewMessage(ethwire.MsgGetPeersTy, ""))
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case <-p.quit:
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// Break out of the for loop if a quit message is posted
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break out
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}
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}
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clean:
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// This loop is for draining the output queue and anybody waiting for us
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for {
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select {
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case <-p.outputQueue:
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// TODO
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default:
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break clean
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}
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}
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}
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func formatMessage(msg *ethwire.Msg) (ret string) {
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ret = fmt.Sprintf("%v %v", msg.Type, msg.Data)
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/*
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XXX Commented out because I need the log level here to determine
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if i should or shouldn't generate this message
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*/
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/*
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switch msg.Type {
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case ethwire.MsgPeersTy:
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ret += fmt.Sprintf("(%d entries)", msg.Data.Len())
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case ethwire.MsgBlockTy:
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b1, b2 := ethchain.NewBlockFromRlpValue(msg.Data.Get(0)), ethchain.NewBlockFromRlpValue(msg.Data.Get(msg.Data.Len()-1))
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ret += fmt.Sprintf("(%d entries) %x - %x", msg.Data.Len(), b1.Hash()[0:4], b2.Hash()[0:4])
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case ethwire.MsgBlockHashesTy:
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h1, h2 := msg.Data.Get(0).Bytes(), msg.Data.Get(msg.Data.Len()-1).Bytes()
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ret += fmt.Sprintf("(%d entries) %x - %x", msg.Data.Len(), h1, h2)
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}
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*/
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return
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}
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// Inbound handler. Inbound messages are received here and passed to the appropriate methods
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func (p *Peer) HandleInbound() {
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for atomic.LoadInt32(&p.disconnect) == 0 {
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// HMM?
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time.Sleep(50 * time.Millisecond)
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// Wait for a message from the peer
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msgs, err := ethwire.ReadMessages(p.conn)
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if err != nil {
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peerlogger.Debugln(err)
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}
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for _, msg := range msgs {
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peerlogger.DebugDetailf("(%v) => %v\n", p.conn.RemoteAddr(), formatMessage(msg))
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switch msg.Type {
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case ethwire.MsgHandshakeTy:
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// Version message
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p.handleHandshake(msg)
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//if p.caps.IsCap(CapPeerDiscTy) {
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p.QueueMessage(ethwire.NewMessage(ethwire.MsgGetPeersTy, ""))
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//}
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case ethwire.MsgDiscTy:
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p.Stop()
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peerlogger.Infoln("Disconnect peer: ", DiscReason(msg.Data.Get(0).Uint()))
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case ethwire.MsgPingTy:
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// Respond back with pong
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p.QueueMessage(ethwire.NewMessage(ethwire.MsgPongTy, ""))
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case ethwire.MsgPongTy:
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// If we received a pong back from a peer we set the
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// last pong so the peer handler knows this peer is still
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// active.
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p.lastPong = time.Now().Unix()
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p.pingTime = time.Since(p.pingStartTime)
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case ethwire.MsgTxTy:
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// If the message was a transaction queue the transaction
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// in the TxPool where it will undergo validation and
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// processing when a new block is found
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for i := 0; i < msg.Data.Len(); i++ {
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tx := ethchain.NewTransactionFromValue(msg.Data.Get(i))
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p.ethereum.TxPool().QueueTransaction(tx)
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}
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case ethwire.MsgGetPeersTy:
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// Peer asked for list of connected peers
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p.pushPeers()
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case ethwire.MsgPeersTy:
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// Received a list of peers (probably because MsgGetPeersTy was send)
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data := msg.Data
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// Create new list of possible peers for the ethereum to process
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peers := make([]string, data.Len())
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// Parse each possible peer
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for i := 0; i < data.Len(); i++ {
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value := data.Get(i)
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peers[i] = unpackAddr(value.Get(0), value.Get(1).Uint())
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}
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// Connect to the list of peers
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p.ethereum.ProcessPeerList(peers)
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case ethwire.MsgStatusTy:
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// Handle peer's status msg
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p.handleStatus(msg)
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}
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// TMP
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if p.statusKnown {
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switch msg.Type {
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case ethwire.MsgGetTxsTy:
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// Get the current transactions of the pool
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txs := p.ethereum.TxPool().CurrentTransactions()
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// Get the RlpData values from the txs
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txsInterface := make([]interface{}, len(txs))
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for i, tx := range txs {
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txsInterface[i] = tx.RlpData()
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}
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// Broadcast it back to the peer
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p.QueueMessage(ethwire.NewMessage(ethwire.MsgTxTy, txsInterface))
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case ethwire.MsgGetBlockHashesTy:
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if msg.Data.Len() < 2 {
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peerlogger.Debugln("err: argument length invalid ", msg.Data.Len())
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}
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hash := msg.Data.Get(0).Bytes()
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amount := msg.Data.Get(1).Uint()
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hashes := p.ethereum.BlockChain().GetChainHashesFromHash(hash, amount)
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p.QueueMessage(ethwire.NewMessage(ethwire.MsgBlockHashesTy, ethutil.ByteSliceToInterface(hashes)))
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case ethwire.MsgGetBlocksTy:
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// Limit to max 300 blocks
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max := int(math.Min(float64(msg.Data.Len()), 300.0))
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var blocks []interface{}
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for i := 0; i < max; i++ {
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hash := msg.Data.Get(i).Bytes()
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block := p.ethereum.BlockChain().GetBlock(hash)
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if block != nil {
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blocks = append(blocks, block.Value().Raw())
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}
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}
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p.QueueMessage(ethwire.NewMessage(ethwire.MsgBlockTy, blocks))
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case ethwire.MsgBlockHashesTy:
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p.catchingUp = true
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blockPool := p.ethereum.blockPool
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foundCommonHash := false
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it := msg.Data.NewIterator()
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for it.Next() {
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hash := it.Value().Bytes()
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p.lastReceivedHash = hash
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if blockPool.HasCommonHash(hash) {
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foundCommonHash = true
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break
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}
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blockPool.AddHash(hash, p)
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}
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if !foundCommonHash {
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//if !p.FetchHashes() {
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// p.doneFetchingHashes = true
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//}
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p.FetchHashes()
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} else {
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peerlogger.Infof("Found common hash (%x...)\n", p.lastReceivedHash[0:4])
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p.doneFetchingHashes = true
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}
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case ethwire.MsgBlockTy:
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p.catchingUp = true
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blockPool := p.ethereum.blockPool
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it := msg.Data.NewIterator()
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for it.Next() {
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block := ethchain.NewBlockFromRlpValue(it.Value())
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blockPool.Add(block, p)
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p.lastBlockReceived = time.Now()
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}
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}
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}
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}
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}
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p.Stop()
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}
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func (self *Peer) FetchBlocks(hashes [][]byte) {
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if len(hashes) > 0 {
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peerlogger.Debugf("Fetching blocks (%d)\n", len(hashes))
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self.QueueMessage(ethwire.NewMessage(ethwire.MsgGetBlocksTy, ethutil.ByteSliceToInterface(hashes)))
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}
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}
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func (self *Peer) FetchHashes() bool {
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blockPool := self.ethereum.blockPool
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return blockPool.FetchHashes(self)
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}
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func (self *Peer) FetchingHashes() bool {
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return !self.doneFetchingHashes
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}
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// General update method
|
|
func (self *Peer) update() {
|
|
serviceTimer := time.NewTicker(100 * time.Millisecond)
|
|
|
|
out:
|
|
for {
|
|
select {
|
|
case <-serviceTimer.C:
|
|
if self.IsCap("eth") {
|
|
var (
|
|
sinceBlock = time.Since(self.lastBlockReceived)
|
|
)
|
|
|
|
if sinceBlock > 5*time.Second {
|
|
self.catchingUp = false
|
|
}
|
|
}
|
|
case <-self.quit:
|
|
break out
|
|
}
|
|
}
|
|
|
|
serviceTimer.Stop()
|
|
}
|
|
|
|
func (p *Peer) Start() {
|
|
peerHost, peerPort, _ := net.SplitHostPort(p.conn.LocalAddr().String())
|
|
servHost, servPort, _ := net.SplitHostPort(p.conn.RemoteAddr().String())
|
|
|
|
if p.inbound {
|
|
p.host, p.port = packAddr(peerHost, peerPort)
|
|
} else {
|
|
p.host, p.port = packAddr(servHost, servPort)
|
|
}
|
|
|
|
err := p.pushHandshake()
|
|
if err != nil {
|
|
peerlogger.Debugln("Peer can't send outbound version ack", err)
|
|
|
|
p.Stop()
|
|
|
|
return
|
|
}
|
|
|
|
go p.HandleOutbound()
|
|
// Run the inbound handler in a new goroutine
|
|
go p.HandleInbound()
|
|
// Run the general update handler
|
|
go p.update()
|
|
|
|
// Wait a few seconds for startup and then ask for an initial ping
|
|
time.Sleep(2 * time.Second)
|
|
p.writeMessage(ethwire.NewMessage(ethwire.MsgPingTy, ""))
|
|
p.pingStartTime = time.Now()
|
|
|
|
}
|
|
|
|
func (p *Peer) Stop() {
|
|
p.StopWithReason(DiscRequested)
|
|
}
|
|
|
|
func (p *Peer) StopWithReason(reason DiscReason) {
|
|
if atomic.AddInt32(&p.disconnect, 1) != 1 {
|
|
return
|
|
}
|
|
|
|
// Pre-emptively remove the peer; don't wait for reaping. We already know it's dead if we are here
|
|
p.ethereum.RemovePeer(p)
|
|
|
|
close(p.quit)
|
|
if atomic.LoadInt32(&p.connected) != 0 {
|
|
p.writeMessage(ethwire.NewMessage(ethwire.MsgDiscTy, reason))
|
|
p.conn.Close()
|
|
}
|
|
}
|
|
|
|
func (p *Peer) peersMessage() *ethwire.Msg {
|
|
outPeers := make([]interface{}, len(p.ethereum.InOutPeers()))
|
|
// Serialise each peer
|
|
for i, peer := range p.ethereum.InOutPeers() {
|
|
// Don't return localhost as valid peer
|
|
if !net.ParseIP(peer.conn.RemoteAddr().String()).IsLoopback() {
|
|
outPeers[i] = peer.RlpData()
|
|
}
|
|
}
|
|
|
|
// Return the message to the peer with the known list of connected clients
|
|
return ethwire.NewMessage(ethwire.MsgPeersTy, outPeers)
|
|
}
|
|
|
|
// Pushes the list of outbound peers to the client when requested
|
|
func (p *Peer) pushPeers() {
|
|
p.QueueMessage(p.peersMessage())
|
|
}
|
|
|
|
func (self *Peer) pushStatus() {
|
|
msg := ethwire.NewMessage(ethwire.MsgStatusTy, []interface{}{
|
|
uint32(ProtocolVersion),
|
|
uint32(NetVersion),
|
|
self.ethereum.BlockChain().TD,
|
|
self.ethereum.BlockChain().CurrentBlock.Hash(),
|
|
self.ethereum.BlockChain().Genesis().Hash(),
|
|
})
|
|
|
|
self.QueueMessage(msg)
|
|
}
|
|
|
|
func (self *Peer) handleStatus(msg *ethwire.Msg) {
|
|
c := msg.Data
|
|
|
|
var (
|
|
protoVersion = c.Get(0).Uint()
|
|
netVersion = c.Get(1).Uint()
|
|
td = c.Get(2).BigInt()
|
|
bestHash = c.Get(3).Bytes()
|
|
genesis = c.Get(4).Bytes()
|
|
)
|
|
|
|
if bytes.Compare(self.ethereum.BlockChain().Genesis().Hash(), genesis) != 0 {
|
|
ethlogger.Warnf("Invalid genisis hash %x. Disabling [eth]\n", genesis)
|
|
return
|
|
}
|
|
|
|
if netVersion != NetVersion {
|
|
ethlogger.Warnf("Invalid network version %d. Disabling [eth]\n", netVersion)
|
|
return
|
|
}
|
|
|
|
if protoVersion != ProtocolVersion {
|
|
ethlogger.Warnf("Invalid protocol version %d. Disabling [eth]\n", protoVersion)
|
|
return
|
|
}
|
|
|
|
// Get the td and last hash
|
|
self.td = td
|
|
self.bestHash = bestHash
|
|
self.lastReceivedHash = bestHash
|
|
|
|
self.statusKnown = true
|
|
|
|
// Compare the total TD with the blockchain TD. If remote is higher
|
|
// fetch hashes from highest TD node.
|
|
self.FetchHashes()
|
|
|
|
ethlogger.Infof("Peer is [eth] capable. (TD = %v ~ %x) %d / %d", self.td, self.bestHash, protoVersion, netVersion)
|
|
|
|
}
|
|
|
|
func (p *Peer) pushHandshake() error {
|
|
pubkey := p.ethereum.KeyManager().PublicKey()
|
|
msg := ethwire.NewMessage(ethwire.MsgHandshakeTy, []interface{}{
|
|
P2PVersion, []byte(p.version), []interface{}{"eth"}, p.port, pubkey[1:],
|
|
})
|
|
|
|
p.QueueMessage(msg)
|
|
|
|
return nil
|
|
}
|
|
|
|
func (p *Peer) handleHandshake(msg *ethwire.Msg) {
|
|
c := msg.Data
|
|
|
|
var (
|
|
p2pVersion = c.Get(0).Uint()
|
|
clientId = c.Get(1).Str()
|
|
caps = c.Get(2)
|
|
port = c.Get(3).Uint()
|
|
pub = c.Get(4).Bytes()
|
|
)
|
|
|
|
// Check correctness of p2p protocol version
|
|
if p2pVersion != P2PVersion {
|
|
peerlogger.Debugf("Invalid P2P version. Require protocol %d, received %d\n", P2PVersion, p2pVersion)
|
|
p.Stop()
|
|
return
|
|
}
|
|
|
|
// Handle the pub key (validation, uniqueness)
|
|
if len(pub) == 0 {
|
|
peerlogger.Warnln("Pubkey required, not supplied in handshake.")
|
|
p.Stop()
|
|
return
|
|
}
|
|
|
|
// Self connect detection
|
|
pubkey := p.ethereum.KeyManager().PublicKey()
|
|
if bytes.Compare(pubkey[1:], pub) == 0 {
|
|
p.Stop()
|
|
|
|
return
|
|
}
|
|
|
|
// Check for blacklisting
|
|
for _, pk := range p.ethereum.blacklist {
|
|
if bytes.Compare(pk, pub) == 0 {
|
|
peerlogger.Debugf("Blacklisted peer tried to connect (%x...)\n", pubkey[0:4])
|
|
p.StopWithReason(DiscBadPeer)
|
|
|
|
return
|
|
}
|
|
}
|
|
|
|
usedPub := 0
|
|
// This peer is already added to the peerlist so we expect to find a double pubkey at least once
|
|
eachPeer(p.ethereum.Peers(), func(peer *Peer, e *list.Element) {
|
|
if bytes.Compare(pub, peer.pubkey) == 0 {
|
|
usedPub++
|
|
}
|
|
})
|
|
|
|
if usedPub > 0 {
|
|
peerlogger.Debugf("Pubkey %x found more then once. Already connected to client.", p.pubkey)
|
|
p.Stop()
|
|
return
|
|
}
|
|
p.pubkey = pub
|
|
|
|
// If this is an inbound connection send an ack back
|
|
if p.inbound {
|
|
p.port = uint16(port)
|
|
}
|
|
|
|
p.SetVersion(clientId)
|
|
|
|
p.versionKnown = true
|
|
|
|
p.ethereum.PushPeer(p)
|
|
p.ethereum.reactor.Post("peerList", p.ethereum.Peers())
|
|
|
|
p.protocolCaps = caps
|
|
capsIt := caps.NewIterator()
|
|
var capsStrs []string
|
|
for capsIt.Next() {
|
|
cap := capsIt.Value().Str()
|
|
switch cap {
|
|
case "eth":
|
|
p.pushStatus()
|
|
}
|
|
|
|
capsStrs = append(capsStrs, cap)
|
|
}
|
|
|
|
ethlogger.Infof("Added peer (%s) %d / %d (%v)\n", p.conn.RemoteAddr(), p.ethereum.Peers().Len(), p.ethereum.MaxPeers, capsStrs)
|
|
|
|
peerlogger.Debugln(p)
|
|
}
|
|
|
|
func (self *Peer) IsCap(cap string) bool {
|
|
capsIt := self.protocolCaps.NewIterator()
|
|
for capsIt.Next() {
|
|
if capsIt.Value().Str() == cap {
|
|
return true
|
|
}
|
|
}
|
|
|
|
return false
|
|
}
|
|
|
|
func (self *Peer) Caps() *ethutil.Value {
|
|
return self.protocolCaps
|
|
}
|
|
|
|
func (p *Peer) String() string {
|
|
var strBoundType string
|
|
if p.inbound {
|
|
strBoundType = "inbound"
|
|
} else {
|
|
strBoundType = "outbound"
|
|
}
|
|
var strConnectType string
|
|
if atomic.LoadInt32(&p.disconnect) == 0 {
|
|
strConnectType = "connected"
|
|
} else {
|
|
strConnectType = "disconnected"
|
|
}
|
|
|
|
return fmt.Sprintf("[%s] (%s) %v %s [%s]", strConnectType, strBoundType, p.conn.RemoteAddr(), p.version, p.caps)
|
|
|
|
}
|
|
|
|
func (p *Peer) RlpData() []interface{} {
|
|
return []interface{}{p.host, p.port, p.pubkey}
|
|
}
|
|
|
|
func packAddr(address, port string) ([]byte, uint16) {
|
|
addr := strings.Split(address, ".")
|
|
a, _ := strconv.Atoi(addr[0])
|
|
b, _ := strconv.Atoi(addr[1])
|
|
c, _ := strconv.Atoi(addr[2])
|
|
d, _ := strconv.Atoi(addr[3])
|
|
host := []byte{byte(a), byte(b), byte(c), byte(d)}
|
|
prt, _ := strconv.Atoi(port)
|
|
|
|
return host, uint16(prt)
|
|
}
|
|
|
|
func unpackAddr(value *ethutil.Value, p uint64) string {
|
|
byts := value.Bytes()
|
|
a := strconv.Itoa(int(byts[0]))
|
|
b := strconv.Itoa(int(byts[1]))
|
|
c := strconv.Itoa(int(byts[2]))
|
|
d := strconv.Itoa(int(byts[3]))
|
|
host := strings.Join([]string{a, b, c, d}, ".")
|
|
port := strconv.Itoa(int(p))
|
|
|
|
return net.JoinHostPort(host, port)
|
|
}
|