github.com/cryptotooltop/go-ethereum@v0.0.0-20231103184714-151d1922f3e5/cmd/devp2p/rlpxcmd.go (about)

     1  // Copyright 2020 The go-ethereum Authors
     2  // This file is part of go-ethereum.
     3  //
     4  // go-ethereum is free software: you can redistribute it and/or modify
     5  // it under the terms of the GNU General Public License as published by
     6  // the Free Software Foundation, either version 3 of the License, or
     7  // (at your option) any later version.
     8  //
     9  // go-ethereum is distributed in the hope that it will be useful,
    10  // but WITHOUT ANY WARRANTY; without even the implied warranty of
    11  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
    12  // GNU General Public License for more details.
    13  //
    14  // You should have received a copy of the GNU General Public License
    15  // along with go-ethereum. If not, see <http://www.gnu.org/licenses/>.
    16  
    17  package main
    18  
    19  import (
    20  	"fmt"
    21  	"net"
    22  
    23  	"gopkg.in/urfave/cli.v1"
    24  
    25  	"github.com/scroll-tech/go-ethereum/cmd/devp2p/internal/ethtest"
    26  	"github.com/scroll-tech/go-ethereum/crypto"
    27  	"github.com/scroll-tech/go-ethereum/internal/utesting"
    28  	"github.com/scroll-tech/go-ethereum/p2p"
    29  	"github.com/scroll-tech/go-ethereum/p2p/rlpx"
    30  	"github.com/scroll-tech/go-ethereum/rlp"
    31  )
    32  
    33  var (
    34  	rlpxCommand = cli.Command{
    35  		Name:  "rlpx",
    36  		Usage: "RLPx Commands",
    37  		Subcommands: []cli.Command{
    38  			rlpxPingCommand,
    39  			rlpxEthTestCommand,
    40  		},
    41  	}
    42  	rlpxPingCommand = cli.Command{
    43  		Name:   "ping",
    44  		Usage:  "ping <node>",
    45  		Action: rlpxPing,
    46  	}
    47  	rlpxEthTestCommand = cli.Command{
    48  		Name:      "eth-test",
    49  		Usage:     "Runs tests against a node",
    50  		ArgsUsage: "<node> <chain.rlp> <genesis.json>",
    51  		Action:    rlpxEthTest,
    52  		Flags: []cli.Flag{
    53  			testPatternFlag,
    54  			testTAPFlag,
    55  		},
    56  	}
    57  )
    58  
    59  func rlpxPing(ctx *cli.Context) error {
    60  	n := getNodeArg(ctx)
    61  	fd, err := net.Dial("tcp", fmt.Sprintf("%v:%d", n.IP(), n.TCP()))
    62  	if err != nil {
    63  		return err
    64  	}
    65  	conn := rlpx.NewConn(fd, n.Pubkey())
    66  	ourKey, _ := crypto.GenerateKey()
    67  	_, err = conn.Handshake(ourKey)
    68  	if err != nil {
    69  		return err
    70  	}
    71  	code, data, _, err := conn.Read()
    72  	if err != nil {
    73  		return err
    74  	}
    75  	switch code {
    76  	case 0:
    77  		var h ethtest.Hello
    78  		if err := rlp.DecodeBytes(data, &h); err != nil {
    79  			return fmt.Errorf("invalid handshake: %v", err)
    80  		}
    81  		fmt.Printf("%+v\n", h)
    82  	case 1:
    83  		var msg []p2p.DiscReason
    84  		if rlp.DecodeBytes(data, &msg); len(msg) == 0 {
    85  			return fmt.Errorf("invalid disconnect message")
    86  		}
    87  		return fmt.Errorf("received disconnect message: %v", msg[0])
    88  	default:
    89  		return fmt.Errorf("invalid message code %d, expected handshake (code zero)", code)
    90  	}
    91  	return nil
    92  }
    93  
    94  // rlpxEthTest runs the eth protocol test suite.
    95  func rlpxEthTest(ctx *cli.Context) error {
    96  	if ctx.NArg() < 3 {
    97  		exit("missing path to chain.rlp as command-line argument")
    98  	}
    99  	suite, err := ethtest.NewSuite(getNodeArg(ctx), ctx.Args()[1], ctx.Args()[2])
   100  	if err != nil {
   101  		exit(err)
   102  	}
   103  	// check if given node supports eth66, and if so, run eth66 protocol tests as well
   104  	is66Failed, _ := utesting.Run(utesting.Test{Name: "Is_66", Fn: suite.Is_66})
   105  	if is66Failed {
   106  		return runTests(ctx, suite.EthTests())
   107  	}
   108  	return runTests(ctx, suite.AllEthTests())
   109  }