mirror of
https://gitlab.com/pulsechaincom/go-pulse.git
synced 2024-12-23 03:51:09 +00:00
269 lines
8.9 KiB
Go
269 lines
8.9 KiB
Go
// Copyright 2020 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 les
|
|
|
|
import (
|
|
"math/big"
|
|
"testing"
|
|
"time"
|
|
|
|
"github.com/ethereum/go-ethereum/consensus/ethash"
|
|
"github.com/ethereum/go-ethereum/core"
|
|
"github.com/ethereum/go-ethereum/core/rawdb"
|
|
"github.com/ethereum/go-ethereum/core/types"
|
|
"github.com/ethereum/go-ethereum/p2p/enode"
|
|
)
|
|
|
|
// verifyImportEvent verifies that one single event arrive on an import channel.
|
|
func verifyImportEvent(t *testing.T, imported chan interface{}, arrive bool) {
|
|
if arrive {
|
|
select {
|
|
case <-imported:
|
|
case <-time.After(time.Second):
|
|
t.Fatalf("import timeout")
|
|
}
|
|
} else {
|
|
select {
|
|
case <-imported:
|
|
t.Fatalf("import invoked")
|
|
case <-time.After(20 * time.Millisecond):
|
|
}
|
|
}
|
|
}
|
|
|
|
// verifyImportDone verifies that no more events are arriving on an import channel.
|
|
func verifyImportDone(t *testing.T, imported chan interface{}) {
|
|
select {
|
|
case <-imported:
|
|
t.Fatalf("extra block imported")
|
|
case <-time.After(50 * time.Millisecond):
|
|
}
|
|
}
|
|
|
|
// verifyChainHeight verifies the chain height is as expected.
|
|
func verifyChainHeight(t *testing.T, fetcher *lightFetcher, height uint64) {
|
|
local := fetcher.chain.CurrentHeader().Number.Uint64()
|
|
if local != height {
|
|
t.Fatalf("chain height mismatch, got %d, want %d", local, height)
|
|
}
|
|
}
|
|
|
|
func TestSequentialAnnouncementsLes2(t *testing.T) { testSequentialAnnouncements(t, 2) }
|
|
func TestSequentialAnnouncementsLes3(t *testing.T) { testSequentialAnnouncements(t, 3) }
|
|
|
|
func testSequentialAnnouncements(t *testing.T, protocol int) {
|
|
s, c, teardown := newClientServerEnv(t, 4, protocol, nil, nil, 0, false, false, true)
|
|
defer teardown()
|
|
|
|
// Create connected peer pair.
|
|
c.handler.fetcher.noAnnounce = true // Ignore the first announce from peer which can trigger a resync.
|
|
p1, _, err := newTestPeerPair("peer", protocol, s.handler, c.handler)
|
|
if err != nil {
|
|
t.Fatalf("Failed to create peer pair %v", err)
|
|
}
|
|
c.handler.fetcher.noAnnounce = false
|
|
|
|
importCh := make(chan interface{})
|
|
c.handler.fetcher.newHeadHook = func(header *types.Header) {
|
|
importCh <- header
|
|
}
|
|
for i := uint64(1); i <= s.backend.Blockchain().CurrentHeader().Number.Uint64(); i++ {
|
|
header := s.backend.Blockchain().GetHeaderByNumber(i)
|
|
hash, number := header.Hash(), header.Number.Uint64()
|
|
td := rawdb.ReadTd(s.db, hash, number)
|
|
|
|
announce := announceData{hash, number, td, 0, nil}
|
|
if p1.cpeer.announceType == announceTypeSigned {
|
|
announce.sign(s.handler.server.privateKey)
|
|
}
|
|
p1.cpeer.sendAnnounce(announce)
|
|
verifyImportEvent(t, importCh, true)
|
|
}
|
|
verifyImportDone(t, importCh)
|
|
verifyChainHeight(t, c.handler.fetcher, 4)
|
|
}
|
|
|
|
func TestGappedAnnouncementsLes2(t *testing.T) { testGappedAnnouncements(t, 2) }
|
|
func TestGappedAnnouncementsLes3(t *testing.T) { testGappedAnnouncements(t, 3) }
|
|
|
|
func testGappedAnnouncements(t *testing.T, protocol int) {
|
|
s, c, teardown := newClientServerEnv(t, 4, protocol, nil, nil, 0, false, false, true)
|
|
defer teardown()
|
|
|
|
// Create connected peer pair.
|
|
c.handler.fetcher.noAnnounce = true // Ignore the first announce from peer which can trigger a resync.
|
|
peer, _, err := newTestPeerPair("peer", protocol, s.handler, c.handler)
|
|
if err != nil {
|
|
t.Fatalf("Failed to create peer pair %v", err)
|
|
}
|
|
c.handler.fetcher.noAnnounce = false
|
|
|
|
done := make(chan *types.Header, 1)
|
|
c.handler.fetcher.newHeadHook = func(header *types.Header) { done <- header }
|
|
|
|
// Prepare announcement by latest header.
|
|
latest := s.backend.Blockchain().CurrentHeader()
|
|
hash, number := latest.Hash(), latest.Number.Uint64()
|
|
td := rawdb.ReadTd(s.db, hash, number)
|
|
|
|
// Sign the announcement if necessary.
|
|
announce := announceData{hash, number, td, 0, nil}
|
|
if peer.cpeer.announceType == announceTypeSigned {
|
|
announce.sign(s.handler.server.privateKey)
|
|
}
|
|
peer.cpeer.sendAnnounce(announce)
|
|
|
|
<-done // Wait syncing
|
|
verifyChainHeight(t, c.handler.fetcher, 4)
|
|
|
|
// Send a reorged announcement
|
|
var newAnno = make(chan struct{}, 1)
|
|
c.handler.fetcher.noAnnounce = true
|
|
c.handler.fetcher.newAnnounce = func(*serverPeer, *announceData) {
|
|
newAnno <- struct{}{}
|
|
}
|
|
blocks, _ := core.GenerateChain(rawdb.ReadChainConfig(s.db, s.backend.Blockchain().Genesis().Hash()), s.backend.Blockchain().GetBlockByNumber(3),
|
|
ethash.NewFaker(), s.db, 2, func(i int, gen *core.BlockGen) {
|
|
gen.OffsetTime(-9) // higher block difficulty
|
|
})
|
|
s.backend.Blockchain().InsertChain(blocks)
|
|
<-newAnno
|
|
c.handler.fetcher.noAnnounce = false
|
|
c.handler.fetcher.newAnnounce = nil
|
|
|
|
latest = blocks[len(blocks)-1].Header()
|
|
hash, number = latest.Hash(), latest.Number.Uint64()
|
|
td = rawdb.ReadTd(s.db, hash, number)
|
|
|
|
announce = announceData{hash, number, td, 1, nil}
|
|
if peer.cpeer.announceType == announceTypeSigned {
|
|
announce.sign(s.handler.server.privateKey)
|
|
}
|
|
peer.cpeer.sendAnnounce(announce)
|
|
|
|
<-done // Wait syncing
|
|
verifyChainHeight(t, c.handler.fetcher, 5)
|
|
}
|
|
|
|
func TestTrustedAnnouncementsLes2(t *testing.T) { testTrustedAnnouncement(t, 2) }
|
|
func TestTrustedAnnouncementsLes3(t *testing.T) { testTrustedAnnouncement(t, 3) }
|
|
|
|
func testTrustedAnnouncement(t *testing.T, protocol int) {
|
|
var (
|
|
servers []*testServer
|
|
teardowns []func()
|
|
nodes []*enode.Node
|
|
ids []string
|
|
cpeers []*clientPeer
|
|
speers []*serverPeer
|
|
)
|
|
for i := 0; i < 10; i++ {
|
|
s, n, teardown := newTestServerPeer(t, 10, protocol)
|
|
|
|
servers = append(servers, s)
|
|
nodes = append(nodes, n)
|
|
teardowns = append(teardowns, teardown)
|
|
|
|
// A half of them are trusted servers.
|
|
if i < 5 {
|
|
ids = append(ids, n.String())
|
|
}
|
|
}
|
|
_, c, teardown := newClientServerEnv(t, 0, protocol, nil, ids, 60, false, false, true)
|
|
defer teardown()
|
|
defer func() {
|
|
for i := 0; i < len(teardowns); i++ {
|
|
teardowns[i]()
|
|
}
|
|
}()
|
|
|
|
c.handler.fetcher.noAnnounce = true // Ignore the first announce from peer which can trigger a resync.
|
|
|
|
// Connect all server instances.
|
|
for i := 0; i < len(servers); i++ {
|
|
sp, cp, err := connect(servers[i].handler, nodes[i].ID(), c.handler, protocol)
|
|
if err != nil {
|
|
t.Fatalf("connect server and client failed, err %s", err)
|
|
}
|
|
cpeers = append(cpeers, cp)
|
|
speers = append(speers, sp)
|
|
}
|
|
c.handler.fetcher.noAnnounce = false
|
|
|
|
newHead := make(chan *types.Header, 1)
|
|
c.handler.fetcher.newHeadHook = func(header *types.Header) { newHead <- header }
|
|
|
|
check := func(height []uint64, expected uint64, callback func()) {
|
|
for i := 0; i < len(height); i++ {
|
|
for j := 0; j < len(servers); j++ {
|
|
h := servers[j].backend.Blockchain().GetHeaderByNumber(height[i])
|
|
hash, number := h.Hash(), h.Number.Uint64()
|
|
td := rawdb.ReadTd(servers[j].db, hash, number)
|
|
|
|
// Sign the announcement if necessary.
|
|
announce := announceData{hash, number, td, 0, nil}
|
|
p := cpeers[j]
|
|
if p.announceType == announceTypeSigned {
|
|
announce.sign(servers[j].handler.server.privateKey)
|
|
}
|
|
p.sendAnnounce(announce)
|
|
}
|
|
}
|
|
if callback != nil {
|
|
callback()
|
|
}
|
|
verifyChainHeight(t, c.handler.fetcher, expected)
|
|
}
|
|
check([]uint64{1}, 1, func() { <-newHead }) // Sequential announcements
|
|
check([]uint64{4}, 4, func() { <-newHead }) // ULC-style light syncing, rollback untrusted headers
|
|
check([]uint64{10}, 10, func() { <-newHead }) // Sync the whole chain.
|
|
}
|
|
|
|
func TestInvalidAnnounces(t *testing.T) {
|
|
s, c, teardown := newClientServerEnv(t, 4, lpv3, nil, nil, 0, false, false, true)
|
|
defer teardown()
|
|
|
|
// Create connected peer pair.
|
|
c.handler.fetcher.noAnnounce = true // Ignore the first announce from peer which can trigger a resync.
|
|
peer, _, err := newTestPeerPair("peer", lpv3, s.handler, c.handler)
|
|
if err != nil {
|
|
t.Fatalf("Failed to create peer pair %v", err)
|
|
}
|
|
c.handler.fetcher.noAnnounce = false
|
|
|
|
done := make(chan *types.Header, 1)
|
|
c.handler.fetcher.newHeadHook = func(header *types.Header) { done <- header }
|
|
|
|
// Prepare announcement by latest header.
|
|
headerOne := s.backend.Blockchain().GetHeaderByNumber(1)
|
|
hash, number := headerOne.Hash(), headerOne.Number.Uint64()
|
|
td := big.NewInt(200) // bad td
|
|
|
|
// Sign the announcement if necessary.
|
|
announce := announceData{hash, number, td, 0, nil}
|
|
if peer.cpeer.announceType == announceTypeSigned {
|
|
announce.sign(s.handler.server.privateKey)
|
|
}
|
|
peer.cpeer.sendAnnounce(announce)
|
|
<-done // Wait syncing
|
|
|
|
// Ensure the bad peer is evicited
|
|
if c.handler.backend.peers.len() != 0 {
|
|
t.Fatalf("Failed to evict invalid peer")
|
|
}
|
|
}
|