plugeth/cmd/devp2p/internal/ethtest/protocol.go
lightclient 577be37e0e
cmd/devp2p: update eth/snap protocol test suites for PoS (#28340)
Here we update the eth and snap protocol test suites with a new test chain,
created by the hivechain tool. The new test chain uses proof-of-stake. As such,
tests using PoW block propagation in the eth protocol are removed. The test suite
now connects to the node under test using the engine API in order to make it
accept transactions. 

The snap protocol test suite has been rewritten to output test descriptions and
log requests more verbosely.

---------

Co-authored-by: Felix Lange <fjl@twurst.com>
2023-12-20 17:23:48 +01:00

88 lines
2.2 KiB
Go

// Copyright 2023 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 ethtest
import (
"github.com/ethereum/go-ethereum/p2p"
"github.com/ethereum/go-ethereum/rlp"
)
// Unexported devp2p message codes from p2p/peer.go.
const (
handshakeMsg = 0x00
discMsg = 0x01
pingMsg = 0x02
pongMsg = 0x03
)
// Unexported devp2p protocol lengths from p2p package.
const (
baseProtoLen = 16
ethProtoLen = 17
snapProtoLen = 8
)
// Unexported handshake structure from p2p/peer.go.
type protoHandshake struct {
Version uint64
Name string
Caps []p2p.Cap
ListenPort uint64
ID []byte
Rest []rlp.RawValue `rlp:"tail"`
}
type Hello = protoHandshake
// Proto is an enum representing devp2p protocol types.
type Proto int
const (
baseProto Proto = iota
ethProto
snapProto
)
// getProto returns the protocol a certain message code is associated with
// (assuming the negotiated capabilities are exactly {eth,snap})
func getProto(code uint64) Proto {
switch {
case code < baseProtoLen:
return baseProto
case code < baseProtoLen+ethProtoLen:
return ethProto
case code < baseProtoLen+ethProtoLen+snapProtoLen:
return snapProto
default:
panic("unhandled msg code beyond last protocol")
}
}
// protoOffset will return the offset at which the specified protocol's messages
// begin.
func protoOffset(proto Proto) uint64 {
switch proto {
case baseProto:
return 0
case ethProto:
return baseProtoLen
case snapProto:
return baseProtoLen + ethProtoLen
default:
panic("unhandled protocol")
}
}