836c647bdd
This removes the error log message that says
Ethereum peer removal failed ... err="peer not registered"
The error happened because removePeer was called multiple
times: once to disconnect the peer, and another time when the
handler exited. With this change, removePeer now has the sole
purpose of disconnecting the peer. Unregistering happens exactly
once, when the handler exits.
740 lines
26 KiB
Go
740 lines
26 KiB
Go
// Copyright 2014 The go-ethereum Authors
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// This file is part of the go-ethereum library.
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//
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// The go-ethereum library is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// The go-ethereum library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
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package eth
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import (
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"fmt"
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"math/big"
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"math/rand"
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"sync/atomic"
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"testing"
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"time"
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"github.com/ethereum/go-ethereum/common"
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"github.com/ethereum/go-ethereum/consensus/ethash"
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"github.com/ethereum/go-ethereum/core"
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"github.com/ethereum/go-ethereum/core/forkid"
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"github.com/ethereum/go-ethereum/core/rawdb"
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"github.com/ethereum/go-ethereum/core/types"
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"github.com/ethereum/go-ethereum/core/vm"
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"github.com/ethereum/go-ethereum/eth/downloader"
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"github.com/ethereum/go-ethereum/eth/protocols/eth"
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"github.com/ethereum/go-ethereum/event"
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"github.com/ethereum/go-ethereum/p2p"
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"github.com/ethereum/go-ethereum/p2p/enode"
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"github.com/ethereum/go-ethereum/params"
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"github.com/ethereum/go-ethereum/trie"
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)
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// testEthHandler is a mock event handler to listen for inbound network requests
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// on the `eth` protocol and convert them into a more easily testable form.
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type testEthHandler struct {
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blockBroadcasts event.Feed
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txAnnounces event.Feed
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txBroadcasts event.Feed
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}
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func (h *testEthHandler) Chain() *core.BlockChain { panic("no backing chain") }
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func (h *testEthHandler) StateBloom() *trie.SyncBloom { panic("no backing state bloom") }
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func (h *testEthHandler) TxPool() eth.TxPool { panic("no backing tx pool") }
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func (h *testEthHandler) AcceptTxs() bool { return true }
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func (h *testEthHandler) RunPeer(*eth.Peer, eth.Handler) error { panic("not used in tests") }
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func (h *testEthHandler) PeerInfo(enode.ID) interface{} { panic("not used in tests") }
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func (h *testEthHandler) Handle(peer *eth.Peer, packet eth.Packet) error {
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switch packet := packet.(type) {
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case *eth.NewBlockPacket:
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h.blockBroadcasts.Send(packet.Block)
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return nil
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case *eth.NewPooledTransactionHashesPacket:
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h.txAnnounces.Send(([]common.Hash)(*packet))
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return nil
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case *eth.TransactionsPacket:
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h.txBroadcasts.Send(([]*types.Transaction)(*packet))
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return nil
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case *eth.PooledTransactionsPacket:
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h.txBroadcasts.Send(([]*types.Transaction)(*packet))
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return nil
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default:
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panic(fmt.Sprintf("unexpected eth packet type in tests: %T", packet))
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}
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}
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// Tests that peers are correctly accepted (or rejected) based on the advertised
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// fork IDs in the protocol handshake.
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func TestForkIDSplit65(t *testing.T) { testForkIDSplit(t, eth.ETH65) }
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func TestForkIDSplit66(t *testing.T) { testForkIDSplit(t, eth.ETH66) }
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func testForkIDSplit(t *testing.T, protocol uint) {
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t.Parallel()
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var (
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engine = ethash.NewFaker()
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configNoFork = ¶ms.ChainConfig{HomesteadBlock: big.NewInt(1)}
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configProFork = ¶ms.ChainConfig{
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HomesteadBlock: big.NewInt(1),
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EIP150Block: big.NewInt(2),
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EIP155Block: big.NewInt(2),
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EIP158Block: big.NewInt(2),
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ByzantiumBlock: big.NewInt(3),
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}
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dbNoFork = rawdb.NewMemoryDatabase()
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dbProFork = rawdb.NewMemoryDatabase()
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gspecNoFork = &core.Genesis{Config: configNoFork}
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gspecProFork = &core.Genesis{Config: configProFork}
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genesisNoFork = gspecNoFork.MustCommit(dbNoFork)
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genesisProFork = gspecProFork.MustCommit(dbProFork)
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chainNoFork, _ = core.NewBlockChain(dbNoFork, nil, configNoFork, engine, vm.Config{}, nil, nil)
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chainProFork, _ = core.NewBlockChain(dbProFork, nil, configProFork, engine, vm.Config{}, nil, nil)
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blocksNoFork, _ = core.GenerateChain(configNoFork, genesisNoFork, engine, dbNoFork, 2, nil)
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blocksProFork, _ = core.GenerateChain(configProFork, genesisProFork, engine, dbProFork, 2, nil)
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ethNoFork, _ = newHandler(&handlerConfig{
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Database: dbNoFork,
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Chain: chainNoFork,
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TxPool: newTestTxPool(),
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Network: 1,
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Sync: downloader.FullSync,
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BloomCache: 1,
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})
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ethProFork, _ = newHandler(&handlerConfig{
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Database: dbProFork,
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Chain: chainProFork,
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TxPool: newTestTxPool(),
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Network: 1,
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Sync: downloader.FullSync,
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BloomCache: 1,
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})
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)
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ethNoFork.Start(1000)
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ethProFork.Start(1000)
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// Clean up everything after ourselves
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defer chainNoFork.Stop()
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defer chainProFork.Stop()
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defer ethNoFork.Stop()
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defer ethProFork.Stop()
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// Both nodes should allow the other to connect (same genesis, next fork is the same)
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p2pNoFork, p2pProFork := p2p.MsgPipe()
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defer p2pNoFork.Close()
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defer p2pProFork.Close()
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peerNoFork := eth.NewPeer(protocol, p2p.NewPeerPipe(enode.ID{1}, "", nil, p2pNoFork), p2pNoFork, nil)
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peerProFork := eth.NewPeer(protocol, p2p.NewPeerPipe(enode.ID{2}, "", nil, p2pProFork), p2pProFork, nil)
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defer peerNoFork.Close()
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defer peerProFork.Close()
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errc := make(chan error, 2)
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go func(errc chan error) {
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errc <- ethNoFork.runEthPeer(peerProFork, func(peer *eth.Peer) error { return nil })
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}(errc)
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go func(errc chan error) {
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errc <- ethProFork.runEthPeer(peerNoFork, func(peer *eth.Peer) error { return nil })
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}(errc)
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for i := 0; i < 2; i++ {
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select {
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case err := <-errc:
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if err != nil {
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t.Fatalf("frontier nofork <-> profork failed: %v", err)
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}
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case <-time.After(250 * time.Millisecond):
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t.Fatalf("frontier nofork <-> profork handler timeout")
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}
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}
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// Progress into Homestead. Fork's match, so we don't care what the future holds
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chainNoFork.InsertChain(blocksNoFork[:1])
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chainProFork.InsertChain(blocksProFork[:1])
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p2pNoFork, p2pProFork = p2p.MsgPipe()
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defer p2pNoFork.Close()
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defer p2pProFork.Close()
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peerNoFork = eth.NewPeer(protocol, p2p.NewPeer(enode.ID{1}, "", nil), p2pNoFork, nil)
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peerProFork = eth.NewPeer(protocol, p2p.NewPeer(enode.ID{2}, "", nil), p2pProFork, nil)
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defer peerNoFork.Close()
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defer peerProFork.Close()
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errc = make(chan error, 2)
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go func(errc chan error) {
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errc <- ethNoFork.runEthPeer(peerProFork, func(peer *eth.Peer) error { return nil })
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}(errc)
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go func(errc chan error) {
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errc <- ethProFork.runEthPeer(peerNoFork, func(peer *eth.Peer) error { return nil })
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}(errc)
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for i := 0; i < 2; i++ {
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select {
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case err := <-errc:
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if err != nil {
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t.Fatalf("homestead nofork <-> profork failed: %v", err)
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}
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case <-time.After(250 * time.Millisecond):
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t.Fatalf("homestead nofork <-> profork handler timeout")
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}
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}
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// Progress into Spurious. Forks mismatch, signalling differing chains, reject
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chainNoFork.InsertChain(blocksNoFork[1:2])
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chainProFork.InsertChain(blocksProFork[1:2])
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p2pNoFork, p2pProFork = p2p.MsgPipe()
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defer p2pNoFork.Close()
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defer p2pProFork.Close()
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peerNoFork = eth.NewPeer(protocol, p2p.NewPeerPipe(enode.ID{1}, "", nil, p2pNoFork), p2pNoFork, nil)
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peerProFork = eth.NewPeer(protocol, p2p.NewPeerPipe(enode.ID{2}, "", nil, p2pProFork), p2pProFork, nil)
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defer peerNoFork.Close()
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defer peerProFork.Close()
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errc = make(chan error, 2)
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go func(errc chan error) {
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errc <- ethNoFork.runEthPeer(peerProFork, func(peer *eth.Peer) error { return nil })
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}(errc)
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go func(errc chan error) {
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errc <- ethProFork.runEthPeer(peerNoFork, func(peer *eth.Peer) error { return nil })
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}(errc)
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var successes int
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for i := 0; i < 2; i++ {
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select {
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case err := <-errc:
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if err == nil {
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successes++
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if successes == 2 { // Only one side disconnects
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t.Fatalf("fork ID rejection didn't happen")
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}
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}
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case <-time.After(250 * time.Millisecond):
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t.Fatalf("split peers not rejected")
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}
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}
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}
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// Tests that received transactions are added to the local pool.
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func TestRecvTransactions65(t *testing.T) { testRecvTransactions(t, eth.ETH65) }
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func TestRecvTransactions66(t *testing.T) { testRecvTransactions(t, eth.ETH66) }
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func testRecvTransactions(t *testing.T, protocol uint) {
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t.Parallel()
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// Create a message handler, configure it to accept transactions and watch them
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handler := newTestHandler()
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defer handler.close()
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handler.handler.acceptTxs = 1 // mark synced to accept transactions
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txs := make(chan core.NewTxsEvent)
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sub := handler.txpool.SubscribeNewTxsEvent(txs)
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defer sub.Unsubscribe()
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// Create a source peer to send messages through and a sink handler to receive them
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p2pSrc, p2pSink := p2p.MsgPipe()
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defer p2pSrc.Close()
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defer p2pSink.Close()
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src := eth.NewPeer(protocol, p2p.NewPeerPipe(enode.ID{1}, "", nil, p2pSrc), p2pSrc, handler.txpool)
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sink := eth.NewPeer(protocol, p2p.NewPeerPipe(enode.ID{2}, "", nil, p2pSink), p2pSink, handler.txpool)
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defer src.Close()
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defer sink.Close()
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go handler.handler.runEthPeer(sink, func(peer *eth.Peer) error {
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return eth.Handle((*ethHandler)(handler.handler), peer)
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})
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// Run the handshake locally to avoid spinning up a source handler
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var (
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genesis = handler.chain.Genesis()
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head = handler.chain.CurrentBlock()
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td = handler.chain.GetTd(head.Hash(), head.NumberU64())
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)
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if err := src.Handshake(1, td, head.Hash(), genesis.Hash(), forkid.NewIDWithChain(handler.chain), forkid.NewFilter(handler.chain)); err != nil {
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t.Fatalf("failed to run protocol handshake")
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}
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// Send the transaction to the sink and verify that it's added to the tx pool
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tx := types.NewTransaction(0, common.Address{}, big.NewInt(0), 100000, big.NewInt(0), nil)
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tx, _ = types.SignTx(tx, types.HomesteadSigner{}, testKey)
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if err := src.SendTransactions([]*types.Transaction{tx}); err != nil {
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t.Fatalf("failed to send transaction: %v", err)
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}
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select {
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case event := <-txs:
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if len(event.Txs) != 1 {
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t.Errorf("wrong number of added transactions: got %d, want 1", len(event.Txs))
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} else if event.Txs[0].Hash() != tx.Hash() {
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t.Errorf("added wrong tx hash: got %v, want %v", event.Txs[0].Hash(), tx.Hash())
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}
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case <-time.After(2 * time.Second):
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t.Errorf("no NewTxsEvent received within 2 seconds")
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}
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}
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// This test checks that pending transactions are sent.
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func TestSendTransactions65(t *testing.T) { testSendTransactions(t, eth.ETH65) }
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func TestSendTransactions66(t *testing.T) { testSendTransactions(t, eth.ETH66) }
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func testSendTransactions(t *testing.T, protocol uint) {
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t.Parallel()
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// Create a message handler and fill the pool with big transactions
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handler := newTestHandler()
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defer handler.close()
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insert := make([]*types.Transaction, 100)
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for nonce := range insert {
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tx := types.NewTransaction(uint64(nonce), common.Address{}, big.NewInt(0), 100000, big.NewInt(0), make([]byte, txsyncPackSize/10))
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tx, _ = types.SignTx(tx, types.HomesteadSigner{}, testKey)
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insert[nonce] = tx
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}
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go handler.txpool.AddRemotes(insert) // Need goroutine to not block on feed
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time.Sleep(250 * time.Millisecond) // Wait until tx events get out of the system (can't use events, tx broadcaster races with peer join)
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// Create a source handler to send messages through and a sink peer to receive them
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p2pSrc, p2pSink := p2p.MsgPipe()
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defer p2pSrc.Close()
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defer p2pSink.Close()
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src := eth.NewPeer(protocol, p2p.NewPeerPipe(enode.ID{1}, "", nil, p2pSrc), p2pSrc, handler.txpool)
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sink := eth.NewPeer(protocol, p2p.NewPeerPipe(enode.ID{2}, "", nil, p2pSink), p2pSink, handler.txpool)
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defer src.Close()
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defer sink.Close()
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go handler.handler.runEthPeer(src, func(peer *eth.Peer) error {
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return eth.Handle((*ethHandler)(handler.handler), peer)
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})
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// Run the handshake locally to avoid spinning up a source handler
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var (
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genesis = handler.chain.Genesis()
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head = handler.chain.CurrentBlock()
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td = handler.chain.GetTd(head.Hash(), head.NumberU64())
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)
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if err := sink.Handshake(1, td, head.Hash(), genesis.Hash(), forkid.NewIDWithChain(handler.chain), forkid.NewFilter(handler.chain)); err != nil {
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t.Fatalf("failed to run protocol handshake")
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}
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// After the handshake completes, the source handler should stream the sink
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// the transactions, subscribe to all inbound network events
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backend := new(testEthHandler)
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anns := make(chan []common.Hash)
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annSub := backend.txAnnounces.Subscribe(anns)
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defer annSub.Unsubscribe()
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bcasts := make(chan []*types.Transaction)
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bcastSub := backend.txBroadcasts.Subscribe(bcasts)
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defer bcastSub.Unsubscribe()
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go eth.Handle(backend, sink)
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// Make sure we get all the transactions on the correct channels
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seen := make(map[common.Hash]struct{})
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for len(seen) < len(insert) {
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switch protocol {
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case 65, 66:
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select {
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case hashes := <-anns:
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for _, hash := range hashes {
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if _, ok := seen[hash]; ok {
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t.Errorf("duplicate transaction announced: %x", hash)
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}
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seen[hash] = struct{}{}
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}
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case <-bcasts:
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t.Errorf("initial tx broadcast received on post eth/65")
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}
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default:
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panic("unsupported protocol, please extend test")
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}
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}
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for _, tx := range insert {
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if _, ok := seen[tx.Hash()]; !ok {
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t.Errorf("missing transaction: %x", tx.Hash())
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}
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}
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}
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// Tests that transactions get propagated to all attached peers, either via direct
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// broadcasts or via announcements/retrievals.
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func TestTransactionPropagation65(t *testing.T) { testTransactionPropagation(t, eth.ETH65) }
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func TestTransactionPropagation66(t *testing.T) { testTransactionPropagation(t, eth.ETH66) }
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func testTransactionPropagation(t *testing.T, protocol uint) {
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t.Parallel()
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// Create a source handler to send transactions from and a number of sinks
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// to receive them. We need multiple sinks since a one-to-one peering would
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// broadcast all transactions without announcement.
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source := newTestHandler()
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defer source.close()
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sinks := make([]*testHandler, 10)
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for i := 0; i < len(sinks); i++ {
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sinks[i] = newTestHandler()
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defer sinks[i].close()
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sinks[i].handler.acceptTxs = 1 // mark synced to accept transactions
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}
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// Interconnect all the sink handlers with the source handler
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for i, sink := range sinks {
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sink := sink // Closure for gorotuine below
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sourcePipe, sinkPipe := p2p.MsgPipe()
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defer sourcePipe.Close()
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defer sinkPipe.Close()
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sourcePeer := eth.NewPeer(protocol, p2p.NewPeerPipe(enode.ID{byte(i)}, "", nil, sourcePipe), sourcePipe, source.txpool)
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sinkPeer := eth.NewPeer(protocol, p2p.NewPeerPipe(enode.ID{0}, "", nil, sinkPipe), sinkPipe, sink.txpool)
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defer sourcePeer.Close()
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defer sinkPeer.Close()
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go source.handler.runEthPeer(sourcePeer, func(peer *eth.Peer) error {
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return eth.Handle((*ethHandler)(source.handler), peer)
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})
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go sink.handler.runEthPeer(sinkPeer, func(peer *eth.Peer) error {
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return eth.Handle((*ethHandler)(sink.handler), peer)
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})
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}
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// Subscribe to all the transaction pools
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txChs := make([]chan core.NewTxsEvent, len(sinks))
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for i := 0; i < len(sinks); i++ {
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txChs[i] = make(chan core.NewTxsEvent, 1024)
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sub := sinks[i].txpool.SubscribeNewTxsEvent(txChs[i])
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defer sub.Unsubscribe()
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}
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// Fill the source pool with transactions and wait for them at the sinks
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txs := make([]*types.Transaction, 1024)
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for nonce := range txs {
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tx := types.NewTransaction(uint64(nonce), common.Address{}, big.NewInt(0), 100000, big.NewInt(0), nil)
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tx, _ = types.SignTx(tx, types.HomesteadSigner{}, testKey)
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|
txs[nonce] = tx
|
|
}
|
|
source.txpool.AddRemotes(txs)
|
|
|
|
// Iterate through all the sinks and ensure they all got the transactions
|
|
for i := range sinks {
|
|
for arrived := 0; arrived < len(txs); {
|
|
select {
|
|
case event := <-txChs[i]:
|
|
arrived += len(event.Txs)
|
|
case <-time.NewTimer(time.Second).C:
|
|
t.Errorf("sink %d: transaction propagation timed out: have %d, want %d", i, arrived, len(txs))
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// Tests that post eth protocol handshake, clients perform a mutual checkpoint
|
|
// challenge to validate each other's chains. Hash mismatches, or missing ones
|
|
// during a fast sync should lead to the peer getting dropped.
|
|
func TestCheckpointChallenge(t *testing.T) {
|
|
tests := []struct {
|
|
syncmode downloader.SyncMode
|
|
checkpoint bool
|
|
timeout bool
|
|
empty bool
|
|
match bool
|
|
drop bool
|
|
}{
|
|
// If checkpointing is not enabled locally, don't challenge and don't drop
|
|
{downloader.FullSync, false, false, false, false, false},
|
|
{downloader.FastSync, false, false, false, false, false},
|
|
|
|
// If checkpointing is enabled locally and remote response is empty, only drop during fast sync
|
|
{downloader.FullSync, true, false, true, false, false},
|
|
{downloader.FastSync, true, false, true, false, true}, // Special case, fast sync, unsynced peer
|
|
|
|
// If checkpointing is enabled locally and remote response mismatches, always drop
|
|
{downloader.FullSync, true, false, false, false, true},
|
|
{downloader.FastSync, true, false, false, false, true},
|
|
|
|
// If checkpointing is enabled locally and remote response matches, never drop
|
|
{downloader.FullSync, true, false, false, true, false},
|
|
{downloader.FastSync, true, false, false, true, false},
|
|
|
|
// If checkpointing is enabled locally and remote times out, always drop
|
|
{downloader.FullSync, true, true, false, true, true},
|
|
{downloader.FastSync, true, true, false, true, true},
|
|
}
|
|
for _, tt := range tests {
|
|
t.Run(fmt.Sprintf("sync %v checkpoint %v timeout %v empty %v match %v", tt.syncmode, tt.checkpoint, tt.timeout, tt.empty, tt.match), func(t *testing.T) {
|
|
testCheckpointChallenge(t, tt.syncmode, tt.checkpoint, tt.timeout, tt.empty, tt.match, tt.drop)
|
|
})
|
|
}
|
|
}
|
|
|
|
func testCheckpointChallenge(t *testing.T, syncmode downloader.SyncMode, checkpoint bool, timeout bool, empty bool, match bool, drop bool) {
|
|
t.Parallel()
|
|
|
|
// Reduce the checkpoint handshake challenge timeout
|
|
defer func(old time.Duration) { syncChallengeTimeout = old }(syncChallengeTimeout)
|
|
syncChallengeTimeout = 250 * time.Millisecond
|
|
|
|
// Create a test handler and inject a CHT into it. The injection is a bit
|
|
// ugly, but it beats creating everything manually just to avoid reaching
|
|
// into the internals a bit.
|
|
handler := newTestHandler()
|
|
defer handler.close()
|
|
|
|
if syncmode == downloader.FastSync {
|
|
atomic.StoreUint32(&handler.handler.fastSync, 1)
|
|
} else {
|
|
atomic.StoreUint32(&handler.handler.fastSync, 0)
|
|
}
|
|
var response *types.Header
|
|
if checkpoint {
|
|
number := (uint64(rand.Intn(500))+1)*params.CHTFrequency - 1
|
|
response = &types.Header{Number: big.NewInt(int64(number)), Extra: []byte("valid")}
|
|
|
|
handler.handler.checkpointNumber = number
|
|
handler.handler.checkpointHash = response.Hash()
|
|
}
|
|
|
|
// Create a challenger peer and a challenged one.
|
|
p2pLocal, p2pRemote := p2p.MsgPipe()
|
|
defer p2pLocal.Close()
|
|
defer p2pRemote.Close()
|
|
|
|
local := eth.NewPeer(eth.ETH65, p2p.NewPeerPipe(enode.ID{1}, "", nil, p2pLocal), p2pLocal, handler.txpool)
|
|
remote := eth.NewPeer(eth.ETH65, p2p.NewPeerPipe(enode.ID{2}, "", nil, p2pRemote), p2pRemote, handler.txpool)
|
|
defer local.Close()
|
|
defer remote.Close()
|
|
|
|
handlerDone := make(chan struct{})
|
|
go func() {
|
|
defer close(handlerDone)
|
|
handler.handler.runEthPeer(local, func(peer *eth.Peer) error {
|
|
return eth.Handle((*ethHandler)(handler.handler), peer)
|
|
})
|
|
}()
|
|
|
|
// Run the handshake locally to avoid spinning up a remote handler.
|
|
var (
|
|
genesis = handler.chain.Genesis()
|
|
head = handler.chain.CurrentBlock()
|
|
td = handler.chain.GetTd(head.Hash(), head.NumberU64())
|
|
)
|
|
if err := remote.Handshake(1, td, head.Hash(), genesis.Hash(), forkid.NewIDWithChain(handler.chain), forkid.NewFilter(handler.chain)); err != nil {
|
|
t.Fatalf("failed to run protocol handshake")
|
|
}
|
|
|
|
// Connect a new peer and check that we receive the checkpoint challenge.
|
|
if checkpoint {
|
|
if err := remote.ExpectRequestHeadersByNumber(response.Number.Uint64(), 1, 0, false); err != nil {
|
|
t.Fatalf("challenge mismatch: %v", err)
|
|
}
|
|
// Create a block to reply to the challenge if no timeout is simulated.
|
|
if !timeout {
|
|
if empty {
|
|
if err := remote.SendBlockHeaders([]*types.Header{}); err != nil {
|
|
t.Fatalf("failed to answer challenge: %v", err)
|
|
}
|
|
} else if match {
|
|
if err := remote.SendBlockHeaders([]*types.Header{response}); err != nil {
|
|
t.Fatalf("failed to answer challenge: %v", err)
|
|
}
|
|
} else {
|
|
if err := remote.SendBlockHeaders([]*types.Header{{Number: response.Number}}); err != nil {
|
|
t.Fatalf("failed to answer challenge: %v", err)
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// Wait until the test timeout passes to ensure proper cleanup
|
|
time.Sleep(syncChallengeTimeout + 300*time.Millisecond)
|
|
|
|
// Verify that the remote peer is maintained or dropped.
|
|
if drop {
|
|
<-handlerDone
|
|
if peers := handler.handler.peers.len(); peers != 0 {
|
|
t.Fatalf("peer count mismatch: have %d, want %d", peers, 0)
|
|
}
|
|
} else {
|
|
if peers := handler.handler.peers.len(); peers != 1 {
|
|
t.Fatalf("peer count mismatch: have %d, want %d", peers, 1)
|
|
}
|
|
}
|
|
}
|
|
|
|
// Tests that blocks are broadcast to a sqrt number of peers only.
|
|
func TestBroadcastBlock1Peer(t *testing.T) { testBroadcastBlock(t, 1, 1) }
|
|
func TestBroadcastBlock2Peers(t *testing.T) { testBroadcastBlock(t, 2, 1) }
|
|
func TestBroadcastBlock3Peers(t *testing.T) { testBroadcastBlock(t, 3, 1) }
|
|
func TestBroadcastBlock4Peers(t *testing.T) { testBroadcastBlock(t, 4, 2) }
|
|
func TestBroadcastBlock5Peers(t *testing.T) { testBroadcastBlock(t, 5, 2) }
|
|
func TestBroadcastBlock8Peers(t *testing.T) { testBroadcastBlock(t, 9, 3) }
|
|
func TestBroadcastBlock12Peers(t *testing.T) { testBroadcastBlock(t, 12, 3) }
|
|
func TestBroadcastBlock16Peers(t *testing.T) { testBroadcastBlock(t, 16, 4) }
|
|
func TestBroadcastBloc26Peers(t *testing.T) { testBroadcastBlock(t, 26, 5) }
|
|
func TestBroadcastBlock100Peers(t *testing.T) { testBroadcastBlock(t, 100, 10) }
|
|
|
|
func testBroadcastBlock(t *testing.T, peers, bcasts int) {
|
|
t.Parallel()
|
|
|
|
// Create a source handler to broadcast blocks from and a number of sinks
|
|
// to receive them.
|
|
source := newTestHandlerWithBlocks(1)
|
|
defer source.close()
|
|
|
|
sinks := make([]*testEthHandler, peers)
|
|
for i := 0; i < len(sinks); i++ {
|
|
sinks[i] = new(testEthHandler)
|
|
}
|
|
// Interconnect all the sink handlers with the source handler
|
|
var (
|
|
genesis = source.chain.Genesis()
|
|
td = source.chain.GetTd(genesis.Hash(), genesis.NumberU64())
|
|
)
|
|
for i, sink := range sinks {
|
|
sink := sink // Closure for gorotuine below
|
|
|
|
sourcePipe, sinkPipe := p2p.MsgPipe()
|
|
defer sourcePipe.Close()
|
|
defer sinkPipe.Close()
|
|
|
|
sourcePeer := eth.NewPeer(eth.ETH65, p2p.NewPeerPipe(enode.ID{byte(i)}, "", nil, sourcePipe), sourcePipe, nil)
|
|
sinkPeer := eth.NewPeer(eth.ETH65, p2p.NewPeerPipe(enode.ID{0}, "", nil, sinkPipe), sinkPipe, nil)
|
|
defer sourcePeer.Close()
|
|
defer sinkPeer.Close()
|
|
|
|
go source.handler.runEthPeer(sourcePeer, func(peer *eth.Peer) error {
|
|
return eth.Handle((*ethHandler)(source.handler), peer)
|
|
})
|
|
if err := sinkPeer.Handshake(1, td, genesis.Hash(), genesis.Hash(), forkid.NewIDWithChain(source.chain), forkid.NewFilter(source.chain)); err != nil {
|
|
t.Fatalf("failed to run protocol handshake")
|
|
}
|
|
go eth.Handle(sink, sinkPeer)
|
|
}
|
|
// Subscribe to all the transaction pools
|
|
blockChs := make([]chan *types.Block, len(sinks))
|
|
for i := 0; i < len(sinks); i++ {
|
|
blockChs[i] = make(chan *types.Block, 1)
|
|
defer close(blockChs[i])
|
|
|
|
sub := sinks[i].blockBroadcasts.Subscribe(blockChs[i])
|
|
defer sub.Unsubscribe()
|
|
}
|
|
// Initiate a block propagation across the peers
|
|
time.Sleep(100 * time.Millisecond)
|
|
source.handler.BroadcastBlock(source.chain.CurrentBlock(), true)
|
|
|
|
// Iterate through all the sinks and ensure the correct number got the block
|
|
done := make(chan struct{}, peers)
|
|
for _, ch := range blockChs {
|
|
ch := ch
|
|
go func() {
|
|
<-ch
|
|
done <- struct{}{}
|
|
}()
|
|
}
|
|
var received int
|
|
for {
|
|
select {
|
|
case <-done:
|
|
received++
|
|
|
|
case <-time.After(100 * time.Millisecond):
|
|
if received != bcasts {
|
|
t.Errorf("broadcast count mismatch: have %d, want %d", received, bcasts)
|
|
}
|
|
return
|
|
}
|
|
}
|
|
}
|
|
|
|
// Tests that a propagated malformed block (uncles or transactions don't match
|
|
// with the hashes in the header) gets discarded and not broadcast forward.
|
|
func TestBroadcastMalformedBlock65(t *testing.T) { testBroadcastMalformedBlock(t, eth.ETH65) }
|
|
func TestBroadcastMalformedBlock66(t *testing.T) { testBroadcastMalformedBlock(t, eth.ETH66) }
|
|
|
|
func testBroadcastMalformedBlock(t *testing.T, protocol uint) {
|
|
t.Parallel()
|
|
|
|
// Create a source handler to broadcast blocks from and a number of sinks
|
|
// to receive them.
|
|
source := newTestHandlerWithBlocks(1)
|
|
defer source.close()
|
|
|
|
// Create a source handler to send messages through and a sink peer to receive them
|
|
p2pSrc, p2pSink := p2p.MsgPipe()
|
|
defer p2pSrc.Close()
|
|
defer p2pSink.Close()
|
|
|
|
src := eth.NewPeer(protocol, p2p.NewPeerPipe(enode.ID{1}, "", nil, p2pSrc), p2pSrc, source.txpool)
|
|
sink := eth.NewPeer(protocol, p2p.NewPeerPipe(enode.ID{2}, "", nil, p2pSink), p2pSink, source.txpool)
|
|
defer src.Close()
|
|
defer sink.Close()
|
|
|
|
go source.handler.runEthPeer(src, func(peer *eth.Peer) error {
|
|
return eth.Handle((*ethHandler)(source.handler), peer)
|
|
})
|
|
// Run the handshake locally to avoid spinning up a sink handler
|
|
var (
|
|
genesis = source.chain.Genesis()
|
|
td = source.chain.GetTd(genesis.Hash(), genesis.NumberU64())
|
|
)
|
|
if err := sink.Handshake(1, td, genesis.Hash(), genesis.Hash(), forkid.NewIDWithChain(source.chain), forkid.NewFilter(source.chain)); err != nil {
|
|
t.Fatalf("failed to run protocol handshake")
|
|
}
|
|
// After the handshake completes, the source handler should stream the sink
|
|
// the blocks, subscribe to inbound network events
|
|
backend := new(testEthHandler)
|
|
|
|
blocks := make(chan *types.Block, 1)
|
|
sub := backend.blockBroadcasts.Subscribe(blocks)
|
|
defer sub.Unsubscribe()
|
|
|
|
go eth.Handle(backend, sink)
|
|
|
|
// Create various combinations of malformed blocks
|
|
head := source.chain.CurrentBlock()
|
|
|
|
malformedUncles := head.Header()
|
|
malformedUncles.UncleHash[0]++
|
|
malformedTransactions := head.Header()
|
|
malformedTransactions.TxHash[0]++
|
|
malformedEverything := head.Header()
|
|
malformedEverything.UncleHash[0]++
|
|
malformedEverything.TxHash[0]++
|
|
|
|
// Try to broadcast all malformations and ensure they all get discarded
|
|
for _, header := range []*types.Header{malformedUncles, malformedTransactions, malformedEverything} {
|
|
block := types.NewBlockWithHeader(header).WithBody(head.Transactions(), head.Uncles())
|
|
if err := src.SendNewBlock(block, big.NewInt(131136)); err != nil {
|
|
t.Fatalf("failed to broadcast block: %v", err)
|
|
}
|
|
select {
|
|
case <-blocks:
|
|
t.Fatalf("malformed block forwarded")
|
|
case <-time.After(100 * time.Millisecond):
|
|
}
|
|
}
|
|
}
|