mirror of https://github.com/ethereum/go-ethereum
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
125 lines
3.1 KiB
125 lines
3.1 KiB
// Copyright 2020 The go-ethereum Authors
|
|
// This file is part of go-ethereum.
|
|
//
|
|
// go-ethereum is free software: you can redistribute it and/or modify
|
|
// it under the terms of the GNU General Public License as published by
|
|
// the Free Software Foundation, either version 3 of the License, or
|
|
// (at your option) any later version.
|
|
//
|
|
// go-ethereum is distributed in the hope that it will be useful,
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
// GNU General Public License for more details.
|
|
//
|
|
// You should have received a copy of the GNU General Public License
|
|
// along with go-ethereum. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
package v4test
|
|
|
|
import (
|
|
"crypto/ecdsa"
|
|
"fmt"
|
|
"net"
|
|
"time"
|
|
|
|
"github.com/ethereum/go-ethereum/crypto"
|
|
"github.com/ethereum/go-ethereum/p2p/discover/v4wire"
|
|
"github.com/ethereum/go-ethereum/p2p/enode"
|
|
)
|
|
|
|
const waitTime = 300 * time.Millisecond
|
|
|
|
type testenv struct {
|
|
l1, l2 net.PacketConn
|
|
key *ecdsa.PrivateKey
|
|
remote *enode.Node
|
|
remoteAddr *net.UDPAddr
|
|
}
|
|
|
|
func newTestEnv(remote string, listen1, listen2 string) *testenv {
|
|
l1, err := net.ListenPacket("udp", fmt.Sprintf("%v:0", listen1))
|
|
if err != nil {
|
|
panic(err)
|
|
}
|
|
l2, err := net.ListenPacket("udp", fmt.Sprintf("%v:0", listen2))
|
|
if err != nil {
|
|
panic(err)
|
|
}
|
|
key, err := crypto.GenerateKey()
|
|
if err != nil {
|
|
panic(err)
|
|
}
|
|
node, err := enode.Parse(enode.ValidSchemes, remote)
|
|
if err != nil {
|
|
panic(err)
|
|
}
|
|
if !node.IPAddr().IsValid() || node.UDP() == 0 {
|
|
var ip net.IP
|
|
var tcpPort, udpPort int
|
|
if node.IPAddr().IsValid() {
|
|
ip = node.IPAddr().AsSlice()
|
|
} else {
|
|
ip = net.ParseIP("127.0.0.1")
|
|
}
|
|
if tcpPort = node.TCP(); tcpPort == 0 {
|
|
tcpPort = 30303
|
|
}
|
|
if udpPort = node.UDP(); udpPort == 0 {
|
|
udpPort = 30303
|
|
}
|
|
node = enode.NewV4(node.Pubkey(), ip, tcpPort, udpPort)
|
|
}
|
|
addr := &net.UDPAddr{IP: node.IP(), Port: node.UDP()}
|
|
return &testenv{l1, l2, key, node, addr}
|
|
}
|
|
|
|
func (te *testenv) close() {
|
|
te.l1.Close()
|
|
te.l2.Close()
|
|
}
|
|
|
|
func (te *testenv) send(c net.PacketConn, req v4wire.Packet) []byte {
|
|
packet, hash, err := v4wire.Encode(te.key, req)
|
|
if err != nil {
|
|
panic(fmt.Errorf("can't encode %v packet: %v", req.Name(), err))
|
|
}
|
|
if _, err := c.WriteTo(packet, te.remoteAddr); err != nil {
|
|
panic(fmt.Errorf("can't send %v: %v", req.Name(), err))
|
|
}
|
|
return hash
|
|
}
|
|
|
|
func (te *testenv) read(c net.PacketConn) (v4wire.Packet, []byte, error) {
|
|
buf := make([]byte, 2048)
|
|
if err := c.SetReadDeadline(time.Now().Add(waitTime)); err != nil {
|
|
return nil, nil, err
|
|
}
|
|
n, _, err := c.ReadFrom(buf)
|
|
if err != nil {
|
|
return nil, nil, err
|
|
}
|
|
p, _, hash, err := v4wire.Decode(buf[:n])
|
|
return p, hash, err
|
|
}
|
|
|
|
func (te *testenv) localEndpoint(c net.PacketConn) v4wire.Endpoint {
|
|
addr := c.LocalAddr().(*net.UDPAddr)
|
|
return v4wire.Endpoint{
|
|
IP: addr.IP.To4(),
|
|
UDP: uint16(addr.Port),
|
|
TCP: 0,
|
|
}
|
|
}
|
|
|
|
func (te *testenv) remoteEndpoint() v4wire.Endpoint {
|
|
return v4wire.NewEndpoint(te.remoteAddr.AddrPort(), 0)
|
|
}
|
|
|
|
func contains(ns []v4wire.Node, key v4wire.Pubkey) bool {
|
|
for _, n := range ns {
|
|
if n.ID == key {
|
|
return true
|
|
}
|
|
}
|
|
return false
|
|
}
|
|
|