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les: handler separation (#19639)

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les: handler separation
This commit is contained in:
gary rong
2019-08-21 17:29:34 +08:00
committed by Felföldi Zsolt
parent 4aee0d1994
commit 2ed729d38e
31 changed files with 2377 additions and 2525 deletions
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224
les/ulc_test.go
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@ -17,151 +17,100 @@
package les
import (
"crypto/ecdsa"
"crypto/rand"
"fmt"
"math/big"
"net"
"reflect"
"testing"
"time"
"github.com/ethereum/go-ethereum/common/mclock"
"github.com/ethereum/go-ethereum/core/rawdb"
"github.com/ethereum/go-ethereum/crypto"
"github.com/ethereum/go-ethereum/light"
"github.com/ethereum/go-ethereum/p2p"
"github.com/ethereum/go-ethereum/p2p/enode"
)
func TestULCSyncWithOnePeer(t *testing.T) {
f := newFullPeerPair(t, 1, 4)
l := newLightPeer(t, []string{f.Node.String()}, 100)
func TestULCAnnounceThresholdLes2(t *testing.T) { testULCAnnounceThreshold(t, 2) }
func TestULCAnnounceThresholdLes3(t *testing.T) { testULCAnnounceThreshold(t, 3) }
if reflect.DeepEqual(f.PM.blockchain.CurrentHeader().Hash(), l.PM.blockchain.CurrentHeader().Hash()) {
t.Fatal("blocks are equal")
func testULCAnnounceThreshold(t *testing.T, protocol int) {
// todo figure out why it takes fetcher so longer to fetcher the announced header.
t.Skip("Sometimes it can failed")
var cases = []struct {
height []int
threshold int
expect uint64
}{
{[]int{1}, 100, 1},
{[]int{0, 0, 0}, 100, 0},
{[]int{1, 2, 3}, 30, 3},
{[]int{1, 2, 3}, 60, 2},
{[]int{3, 2, 1}, 67, 1},
{[]int{3, 2, 1}, 100, 1},
}
_, _, err := connectPeers(f, l, 2)
if err != nil {
t.Fatal(err)
}
l.PM.fetcher.lock.Lock()
l.PM.fetcher.nextRequest()
l.PM.fetcher.lock.Unlock()
for _, testcase := range cases {
var (
servers []*testServer
teardowns []func()
nodes []*enode.Node
ids []string
)
for i := 0; i < len(testcase.height); i++ {
s, n, teardown := newServerPeer(t, 0, protocol)
if !reflect.DeepEqual(f.PM.blockchain.CurrentHeader().Hash(), l.PM.blockchain.CurrentHeader().Hash()) {
t.Fatal("sync doesn't work")
servers = append(servers, s)
nodes = append(nodes, n)
teardowns = append(teardowns, teardown)
ids = append(ids, n.String())
}
c, teardown := newLightPeer(t, protocol, ids, testcase.threshold)
// Connect all servers.
for i := 0; i < len(servers); i++ {
connect(servers[i].handler, nodes[i].ID(), c.handler, protocol)
}
for i := 0; i < len(servers); i++ {
for j := 0; j < testcase.height[i]; j++ {
servers[i].backend.Commit()
}
}
time.Sleep(1500 * time.Millisecond) // Ensure the fetcher has done its work.
head := c.handler.backend.blockchain.CurrentHeader().Number.Uint64()
if head != testcase.expect {
t.Fatalf("chain height mismatch, want %d, got %d", testcase.expect, head)
}
// Release all servers and client resources.
teardown()
for i := 0; i < len(teardowns); i++ {
teardowns[i]()
}
}
}
func TestULCReceiveAnnounce(t *testing.T) {
f := newFullPeerPair(t, 1, 4)
l := newLightPeer(t, []string{f.Node.String()}, 100)
fPeer, lPeer, err := connectPeers(f, l, 2)
if err != nil {
t.Fatal(err)
}
l.PM.synchronise(fPeer)
//check that the sync is finished correctly
if !reflect.DeepEqual(f.PM.blockchain.CurrentHeader().Hash(), l.PM.blockchain.CurrentHeader().Hash()) {
t.Fatal("sync doesn't work")
}
l.PM.peers.lock.Lock()
if len(l.PM.peers.peers) == 0 {
t.Fatal("peer list should not be empty")
}
l.PM.peers.lock.Unlock()
time.Sleep(time.Second)
//send a signed announce message(payload doesn't matter)
td := f.PM.blockchain.GetTd(l.PM.blockchain.CurrentHeader().Hash(), l.PM.blockchain.CurrentHeader().Number.Uint64())
announce := announceData{
Number: l.PM.blockchain.CurrentHeader().Number.Uint64() + 1,
Td: td.Add(td, big.NewInt(1)),
}
announce.sign(f.Key)
lPeer.SendAnnounce(announce)
}
func TestULCShouldNotSyncWithTwoPeersOneHaveEmptyChain(t *testing.T) {
f1 := newFullPeerPair(t, 1, 4)
f2 := newFullPeerPair(t, 2, 0)
l := newLightPeer(t, []string{f1.Node.String(), f2.Node.String()}, 100)
_, _, err := connectPeers(f1, l, 2)
if err != nil {
t.Fatal(err)
}
_, _, err = connectPeers(f2, l, 2)
if err != nil {
t.Fatal(err)
}
l.PM.fetcher.lock.Lock()
l.PM.fetcher.nextRequest()
l.PM.fetcher.lock.Unlock()
if reflect.DeepEqual(f2.PM.blockchain.CurrentHeader().Hash(), l.PM.blockchain.CurrentHeader().Hash()) {
t.Fatal("Incorrect hash: second peer has empty chain")
}
}
func TestULCShouldNotSyncWithThreePeersOneHaveEmptyChain(t *testing.T) {
f1 := newFullPeerPair(t, 1, 3)
f2 := newFullPeerPair(t, 2, 4)
f3 := newFullPeerPair(t, 3, 0)
l := newLightPeer(t, []string{f1.Node.String(), f2.Node.String(), f3.Node.String()}, 60)
_, _, err := connectPeers(f1, l, 2)
if err != nil {
t.Fatal(err)
}
_, _, err = connectPeers(f2, l, 2)
if err != nil {
t.Fatal(err)
}
_, _, err = connectPeers(f3, l, 2)
if err != nil {
t.Fatal(err)
}
l.PM.fetcher.lock.Lock()
l.PM.fetcher.nextRequest()
l.PM.fetcher.lock.Unlock()
if !reflect.DeepEqual(f1.PM.blockchain.CurrentHeader().Hash(), l.PM.blockchain.CurrentHeader().Hash()) {
t.Fatal("Incorrect hash")
}
}
type pairPeer struct {
Name string
Node *enode.Node
PM *ProtocolManager
Key *ecdsa.PrivateKey
}
func connectPeers(full, light pairPeer, version int) (*peer, *peer, error) {
func connect(server *serverHandler, serverId enode.ID, client *clientHandler, protocol int) (*peer, *peer, error) {
// Create a message pipe to communicate through
app, net := p2p.MsgPipe()
peerLight := full.PM.newPeer(version, NetworkId, p2p.NewPeer(light.Node.ID(), light.Name, nil), net)
peerFull := light.PM.newPeer(version, NetworkId, p2p.NewPeer(full.Node.ID(), full.Name, nil), app)
var id enode.ID
rand.Read(id[:])
peer1 := newPeer(protocol, NetworkId, true, p2p.NewPeer(serverId, "", nil), net) // Mark server as trusted
peer2 := newPeer(protocol, NetworkId, false, p2p.NewPeer(id, "", nil), app)
// Start the peerLight on a new thread
errc1 := make(chan error, 1)
errc2 := make(chan error, 1)
go func() {
select {
case light.PM.newPeerCh <- peerFull:
errc1 <- light.PM.handle(peerFull)
case <-light.PM.quitSync:
case <-server.closeCh:
errc1 <- p2p.DiscQuitting
case errc1 <- server.handle(peer2):
}
}()
go func() {
select {
case full.PM.newPeerCh <- peerLight:
errc2 <- full.PM.handle(peerLight)
case <-full.PM.quitSync:
errc2 <- p2p.DiscQuitting
case <-client.closeCh:
errc1 <- p2p.DiscQuitting
case errc1 <- client.handle(peer1):
}
}()
@ -172,48 +121,23 @@ func connectPeers(full, light pairPeer, version int) (*peer, *peer, error) {
case err := <-errc2:
return nil, nil, fmt.Errorf("peerFull handshake error: %v", err)
}
return peerFull, peerLight, nil
return peer1, peer2, nil
}
// newFullPeerPair creates node with full sync mode
func newFullPeerPair(t *testing.T, index int, numberOfblocks int) pairPeer {
db := rawdb.NewMemoryDatabase()
pmFull, _ := newTestProtocolManagerMust(t, false, numberOfblocks, nil, nil, nil, db, nil, 0)
peerPairFull := pairPeer{
Name: "full node",
PM: pmFull,
}
// newServerPeer creates server peer.
func newServerPeer(t *testing.T, blocks int, protocol int) (*testServer, *enode.Node, func()) {
s, teardown := newServerEnv(t, blocks, protocol, nil, false, false, 0)
key, err := crypto.GenerateKey()
if err != nil {
t.Fatal("generate key err:", err)
}
peerPairFull.Key = key
peerPairFull.Node = enode.NewV4(&key.PublicKey, net.ParseIP("127.0.0.1"), 35000, 35000)
return peerPairFull
s.handler.server.privateKey = key
n := enode.NewV4(&key.PublicKey, net.ParseIP("127.0.0.1"), 35000, 35000)
return s, n, teardown
}
// newLightPeer creates node with light sync mode
func newLightPeer(t *testing.T, ulcServers []string, ulcFraction int) pairPeer {
peers := newPeerSet()
dist := newRequestDistributor(peers, make(chan struct{}), &mclock.System{})
rm := newRetrieveManager(peers, dist, nil)
ldb := rawdb.NewMemoryDatabase()
odr := NewLesOdr(ldb, light.DefaultClientIndexerConfig, rm)
pmLight, _ := newTestProtocolManagerMust(t, true, 0, odr, nil, peers, ldb, ulcServers, ulcFraction)
peerPairLight := pairPeer{
Name: "ulc node",
PM: pmLight,
}
key, err := crypto.GenerateKey()
if err != nil {
t.Fatal("generate key err:", err)
}
peerPairLight.Key = key
peerPairLight.Node = enode.NewV4(&key.PublicKey, net.IP{}, 35000, 35000)
return peerPairLight
func newLightPeer(t *testing.T, protocol int, ulcServers []string, ulcFraction int) (*testClient, func()) {
_, c, teardown := newClientServerEnv(t, 0, protocol, nil, ulcServers, ulcFraction, false, false)
return c, teardown
}