plugeth/cmd/devp2p/internal/ethtest/eth66_suite.go

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// Copyright 2021 The go-ethereum Authors
// This file is part of the go-ethereum library.
//
// The go-ethereum library is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// The go-ethereum library 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 Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
package ethtest
import (
"time"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/crypto"
"github.com/ethereum/go-ethereum/eth/protocols/eth"
"github.com/ethereum/go-ethereum/internal/utesting"
"github.com/ethereum/go-ethereum/p2p"
)
// Is_66 checks if the node supports the eth66 protocol version,
// and if not, exists the test suite
func (s *Suite) Is_66(t *utesting.T) {
conn := s.dial66(t)
conn.handshake(t)
if conn.negotiatedProtoVersion < 66 {
t.Fail()
}
}
// TestStatus_66 attempts to connect to the given node and exchange
// a status message with it on the eth66 protocol, and then check to
// make sure the chain head is correct.
func (s *Suite) TestStatus_66(t *utesting.T) {
conn := s.dial66(t)
defer conn.Close()
// get protoHandshake
conn.handshake(t)
// get status
switch msg := conn.statusExchange66(t, s.chain).(type) {
case *Status:
status := *msg
if status.ProtocolVersion != uint32(66) {
t.Fatalf("mismatch in version: wanted 66, got %d", status.ProtocolVersion)
}
t.Logf("got status message: %s", pretty.Sdump(msg))
default:
t.Fatalf("unexpected: %s", pretty.Sdump(msg))
}
}
// TestGetBlockHeaders_66 tests whether the given node can respond to
// an eth66 `GetBlockHeaders` request and that the response is accurate.
func (s *Suite) TestGetBlockHeaders_66(t *utesting.T) {
conn := s.setupConnection66(t)
defer conn.Close()
// get block headers
req := &eth.GetBlockHeadersPacket66{
RequestId: 3,
GetBlockHeadersPacket: &eth.GetBlockHeadersPacket{
Origin: eth.HashOrNumber{
Hash: s.chain.blocks[1].Hash(),
},
Amount: 2,
Skip: 1,
Reverse: false,
},
}
// write message
headers, err := s.getBlockHeaders66(conn, req, req.RequestId)
if err != nil {
t.Fatalf("could not get block headers: %v", err)
}
// check for correct headers
if !headersMatch(t, s.chain, headers) {
t.Fatal("received wrong header(s)")
}
}
// TestSimultaneousRequests_66 sends two simultaneous `GetBlockHeader` requests
// with different request IDs and checks to make sure the node responds with the correct
// headers per request.
func (s *Suite) TestSimultaneousRequests_66(t *utesting.T) {
// create two connections
conn1, conn2 := s.setupConnection66(t), s.setupConnection66(t)
defer conn1.Close()
defer conn2.Close()
// create two requests
req1 := &eth.GetBlockHeadersPacket66{
RequestId: 111,
GetBlockHeadersPacket: &eth.GetBlockHeadersPacket{
Origin: eth.HashOrNumber{
Hash: s.chain.blocks[1].Hash(),
},
Amount: 2,
Skip: 1,
Reverse: false,
},
}
req2 := &eth.GetBlockHeadersPacket66{
RequestId: 222,
GetBlockHeadersPacket: &eth.GetBlockHeadersPacket{
Origin: eth.HashOrNumber{
Hash: s.chain.blocks[1].Hash(),
},
Amount: 4,
Skip: 1,
Reverse: false,
},
}
// wait for headers for first request
headerChan := make(chan BlockHeaders, 1)
go func(headers chan BlockHeaders) {
recvHeaders, err := s.getBlockHeaders66(conn1, req1, req1.RequestId)
if err != nil {
t.Fatalf("could not get block headers: %v", err)
return
}
headers <- recvHeaders
}(headerChan)
// check headers of second request
headers1, err := s.getBlockHeaders66(conn2, req2, req2.RequestId)
if err != nil {
t.Fatalf("could not get block headers: %v", err)
}
if !headersMatch(t, s.chain, headers1) {
t.Fatal("wrong header(s) in response to req2")
}
// check headers of first request
if !headersMatch(t, s.chain, <-headerChan) {
t.Fatal("wrong header(s) in response to req1")
}
}
// TestBroadcast_66 tests whether a block announcement is correctly
// propagated to the given node's peer(s) on the eth66 protocol.
func (s *Suite) TestBroadcast_66(t *utesting.T) {
s.sendNextBlock66(t)
}
// TestGetBlockBodies_66 tests whether the given node can respond to
// a `GetBlockBodies` request and that the response is accurate over
// the eth66 protocol.
func (s *Suite) TestGetBlockBodies_66(t *utesting.T) {
conn := s.setupConnection66(t)
defer conn.Close()
// create block bodies request
id := uint64(55)
req := &eth.GetBlockBodiesPacket66{
RequestId: id,
GetBlockBodiesPacket: eth.GetBlockBodiesPacket{
s.chain.blocks[54].Hash(),
s.chain.blocks[75].Hash(),
},
}
if err := conn.write66(req, GetBlockBodies{}.Code()); err != nil {
t.Fatalf("could not write to connection: %v", err)
}
reqID, msg := conn.readAndServe66(s.chain, timeout)
switch msg := msg.(type) {
case BlockBodies:
if reqID != req.RequestId {
t.Fatalf("request ID mismatch: wanted %d, got %d", req.RequestId, reqID)
}
t.Logf("received %d block bodies", len(msg))
default:
t.Fatalf("unexpected: %s", pretty.Sdump(msg))
}
}
// TestLargeAnnounce_66 tests the announcement mechanism with a large block.
func (s *Suite) TestLargeAnnounce_66(t *utesting.T) {
nextBlock := len(s.chain.blocks)
blocks := []*NewBlock{
{
Block: largeBlock(),
TD: s.fullChain.TD(nextBlock + 1),
},
{
Block: s.fullChain.blocks[nextBlock],
TD: largeNumber(2),
},
{
Block: largeBlock(),
TD: largeNumber(2),
},
{
Block: s.fullChain.blocks[nextBlock],
TD: s.fullChain.TD(nextBlock + 1),
},
}
for i, blockAnnouncement := range blocks[0:3] {
t.Logf("Testing malicious announcement: %v\n", i)
sendConn := s.setupConnection66(t)
if err := sendConn.Write(blockAnnouncement); err != nil {
t.Fatalf("could not write to connection: %v", err)
}
// Invalid announcement, check that peer disconnected
switch msg := sendConn.ReadAndServe(s.chain, time.Second*8).(type) {
case *Disconnect:
case *Error:
break
default:
t.Fatalf("unexpected: %s wanted disconnect", pretty.Sdump(msg))
}
sendConn.Close()
}
// Test the last block as a valid block
sendConn, receiveConn := s.setupConnection66(t), s.setupConnection66(t)
defer sendConn.Close()
defer receiveConn.Close()
s.testAnnounce66(t, sendConn, receiveConn, blocks[3])
// update test suite chain
s.chain.blocks = append(s.chain.blocks, s.fullChain.blocks[nextBlock])
// wait for client to update its chain
if err := receiveConn.waitForBlock66(s.fullChain.blocks[nextBlock]); err != nil {
t.Fatal(err)
}
}
func (s *Suite) TestOldAnnounce_66(t *utesting.T) {
sendConn, recvConn := s.setupConnection66(t), s.setupConnection66(t)
defer sendConn.Close()
defer recvConn.Close()
s.oldAnnounce(t, sendConn, recvConn)
}
// TestMaliciousHandshake_66 tries to send malicious data during the handshake.
func (s *Suite) TestMaliciousHandshake_66(t *utesting.T) {
conn := s.dial66(t)
defer conn.Close()
// write hello to client
pub0 := crypto.FromECDSAPub(&conn.ourKey.PublicKey)[1:]
handshakes := []*Hello{
{
Version: 5,
Caps: []p2p.Cap{
{Name: largeString(2), Version: 66},
},
ID: pub0,
},
{
Version: 5,
Caps: []p2p.Cap{
{Name: "eth", Version: 64},
{Name: "eth", Version: 65},
{Name: "eth", Version: 66},
},
ID: append(pub0, byte(0)),
},
{
Version: 5,
Caps: []p2p.Cap{
{Name: "eth", Version: 64},
{Name: "eth", Version: 65},
{Name: "eth", Version: 66},
},
ID: append(pub0, pub0...),
},
{
Version: 5,
Caps: []p2p.Cap{
{Name: "eth", Version: 64},
{Name: "eth", Version: 65},
{Name: "eth", Version: 66},
},
ID: largeBuffer(2),
},
{
Version: 5,
Caps: []p2p.Cap{
{Name: largeString(2), Version: 66},
},
ID: largeBuffer(2),
},
}
for i, handshake := range handshakes {
t.Logf("Testing malicious handshake %v\n", i)
// Init the handshake
if err := conn.Write(handshake); err != nil {
t.Fatalf("could not write to connection: %v", err)
}
// check that the peer disconnected
timeout := 20 * time.Second
// Discard one hello
for i := 0; i < 2; i++ {
switch msg := conn.ReadAndServe(s.chain, timeout).(type) {
case *Disconnect:
case *Error:
case *Hello:
// Hello's are sent concurrently, so ignore them
continue
default:
t.Fatalf("unexpected: %s", pretty.Sdump(msg))
}
}
// Dial for the next round
conn = s.dial66(t)
}
}
// TestMaliciousStatus_66 sends a status package with a large total difficulty.
func (s *Suite) TestMaliciousStatus_66(t *utesting.T) {
conn := s.dial66(t)
defer conn.Close()
// get protoHandshake
conn.handshake(t)
status := &Status{
ProtocolVersion: uint32(66),
NetworkID: s.chain.chainConfig.ChainID.Uint64(),
TD: largeNumber(2),
Head: s.chain.blocks[s.chain.Len()-1].Hash(),
Genesis: s.chain.blocks[0].Hash(),
ForkID: s.chain.ForkID(),
}
// get status
switch msg := conn.statusExchange(t, s.chain, status).(type) {
case *Status:
t.Logf("%+v\n", msg)
default:
t.Fatalf("expected status, got: %#v ", msg)
}
// wait for disconnect
switch msg := conn.ReadAndServe(s.chain, timeout).(type) {
case *Disconnect:
case *Error:
return
default:
t.Fatalf("expected disconnect, got: %s", pretty.Sdump(msg))
}
}
func (s *Suite) TestTransaction_66(t *utesting.T) {
tests := []*types.Transaction{
getNextTxFromChain(t, s),
unknownTx(t, s),
}
for i, tx := range tests {
t.Logf("Testing tx propagation: %v\n", i)
sendSuccessfulTx66(t, s, tx)
}
}
func (s *Suite) TestMaliciousTx_66(t *utesting.T) {
badTxs := []*types.Transaction{
getOldTxFromChain(t, s),
invalidNonceTx(t, s),
hugeAmount(t, s),
hugeGasPrice(t, s),
hugeData(t, s),
}
sendConn := s.setupConnection66(t)
defer sendConn.Close()
// set up receiving connection before sending txs to make sure
// no announcements are missed
recvConn := s.setupConnection66(t)
defer recvConn.Close()
for i, tx := range badTxs {
t.Logf("Testing malicious tx propagation: %v\n", i)
if err := sendConn.Write(&Transactions{tx}); err != nil {
t.Fatalf("could not write to connection: %v", err)
}
}
// check to make sure bad txs aren't propagated
waitForTxPropagation(t, s, badTxs, recvConn)
}
// TestZeroRequestID_66 checks that a request ID of zero is still handled
// by the node.
func (s *Suite) TestZeroRequestID_66(t *utesting.T) {
conn := s.setupConnection66(t)
defer conn.Close()
req := &eth.GetBlockHeadersPacket66{
RequestId: 0,
GetBlockHeadersPacket: &eth.GetBlockHeadersPacket{
Origin: eth.HashOrNumber{
Number: 0,
},
Amount: 2,
},
}
headers, err := s.getBlockHeaders66(conn, req, req.RequestId)
if err != nil {
t.Fatalf("could not get block headers: %v", err)
}
if !headersMatch(t, s.chain, headers) {
t.Fatal("received wrong header(s)")
}
}
// TestSameRequestID_66 sends two requests with the same request ID
// concurrently to a single node.
func (s *Suite) TestSameRequestID_66(t *utesting.T) {
conn := s.setupConnection66(t)
// create two requests with the same request ID
reqID := uint64(1234)
request1 := &eth.GetBlockHeadersPacket66{
RequestId: reqID,
GetBlockHeadersPacket: &eth.GetBlockHeadersPacket{
Origin: eth.HashOrNumber{
Number: 1,
},
Amount: 2,
},
}
request2 := &eth.GetBlockHeadersPacket66{
RequestId: reqID,
GetBlockHeadersPacket: &eth.GetBlockHeadersPacket{
Origin: eth.HashOrNumber{
Number: 33,
},
Amount: 2,
},
}
// write the first request
err := conn.write66(request1, GetBlockHeaders{}.Code())
if err != nil {
t.Fatalf("could not write to connection: %v", err)
}
// perform second request
headers2, err := s.getBlockHeaders66(conn, request2, reqID)
if err != nil {
t.Fatalf("could not get block headers: %v", err)
return
}
// wait for response to first request
headers1, err := s.waitForBlockHeadersResponse66(conn, reqID)
if err != nil {
t.Fatalf("could not get BlockHeaders response: %v", err)
}
// check if headers match
if !headersMatch(t, s.chain, headers1) || !headersMatch(t, s.chain, headers2) {
t.Fatal("received wrong header(s)")
}
}
// TestLargeTxRequest_66 tests whether a node can fulfill a large GetPooledTransactions
// request.
func (s *Suite) TestLargeTxRequest_66(t *utesting.T) {
// send the next block to ensure the node is no longer syncing and is able to accept
// txs
s.sendNextBlock66(t)
// send 2000 transactions to the node
hashMap, txs := generateTxs(t, s, 2000)
sendConn := s.setupConnection66(t)
defer sendConn.Close()
sendMultipleSuccessfulTxs(t, s, sendConn, txs)
// set up connection to receive to ensure node is peered with the receiving connection
// before tx request is sent
recvConn := s.setupConnection66(t)
defer recvConn.Close()
// create and send pooled tx request
hashes := make([]common.Hash, 0)
for _, hash := range hashMap {
hashes = append(hashes, hash)
}
getTxReq := &eth.GetPooledTransactionsPacket66{
RequestId: 1234,
GetPooledTransactionsPacket: hashes,
}
if err := recvConn.write66(getTxReq, GetPooledTransactions{}.Code()); err != nil {
t.Fatalf("could not write to conn: %v", err)
}
// check that all received transactions match those that were sent to node
switch msg := recvConn.waitForResponse(s.chain, timeout, getTxReq.RequestId).(type) {
case PooledTransactions:
for _, gotTx := range msg {
if _, exists := hashMap[gotTx.Hash()]; !exists {
t.Fatalf("unexpected tx received: %v", gotTx.Hash())
}
}
default:
t.Fatalf("unexpected %s", pretty.Sdump(msg))
}
}
// TestNewPooledTxs_66 tests whether a node will do a GetPooledTransactions
// request upon receiving a NewPooledTransactionHashes announcement.
func (s *Suite) TestNewPooledTxs_66(t *utesting.T) {
// send the next block to ensure the node is no longer syncing and is able to accept
// txs
s.sendNextBlock66(t)
// generate 50 txs
hashMap, _ := generateTxs(t, s, 50)
// create new pooled tx hashes announcement
hashes := make([]common.Hash, 0)
for _, hash := range hashMap {
hashes = append(hashes, hash)
}
announce := NewPooledTransactionHashes(hashes)
// send announcement
conn := s.setupConnection66(t)
defer conn.Close()
if err := conn.Write(announce); err != nil {
t.Fatalf("could not write to connection: %v", err)
}
// wait for GetPooledTxs request
for {
_, msg := conn.readAndServe66(s.chain, timeout)
switch msg := msg.(type) {
case GetPooledTransactions:
if len(msg) != len(hashes) {
t.Fatalf("unexpected number of txs requested: wanted %d, got %d", len(hashes), len(msg))
}
return
case *NewPooledTransactionHashes, *NewBlock, *NewBlockHashes:
// ignore propagated txs and blocks from old tests
continue
default:
t.Fatalf("unexpected %s", pretty.Sdump(msg))
}
}
}