From 2ed729d38e90154d1f23ebdf5a9f2808212276d8 Mon Sep 17 00:00:00 2001
From: gary rong <garyrong0905@gmail.com>
Date: Wed, 21 Aug 2019 17:29:34 +0800
Subject: [PATCH] les: handler separation (#19639)
les: handler separation
---
core/blockchain.go | 22 +
les/api.go | 14 +-
les/api_backend.go | 2 +-
les/api_test.go | 18 +-
les/benchmark.go | 47 +-
les/bloombits.go | 3 +-
les/{backend.go => client.go} | 131 ++-
les/client_handler.go | 401 ++++++++
les/commons.go | 69 +-
les/costtracker.go | 11 +-
les/distributor.go | 37 +-
les/distributor_test.go | 2 +-
les/fetcher.go | 75 +-
les/fetcher_test.go | 168 ---
les/handler.go | 1293 ------------------------
les/handler_test.go | 198 ++--
les/metrics.go | 90 +-
les/odr.go | 5 +-
les/odr_test.go | 38 +-
les/peer.go | 48 +-
les/peer_test.go | 80 +-
les/request_test.go | 28 +-
les/server.go | 340 +++----
les/server_handler.go | 921 +++++++++++++++++
les/serverpool.go | 61 +-
les/sync.go | 71 +-
les/sync_test.go | 17 +-
les/{helper_test.go => test_helper.go} | 448 ++++----
les/ulc_test.go | 226 ++---
light/odr_util.go | 6 +-
light/postprocess.go | 6 +-
31 files changed, 2364 insertions(+), 2512 deletions(-)
rename les/{backend.go => client.go} (78%)
create mode 100644 les/client_handler.go
delete mode 100644 les/fetcher_test.go
delete mode 100644 les/handler.go
create mode 100644 les/server_handler.go
rename les/{helper_test.go => test_helper.go} (55%)
diff --git a/core/blockchain.go b/core/blockchain.go
index 361fa82434..2fd373c7c8 100644
--- a/core/blockchain.go
+++ b/core/blockchain.go
@@ -75,6 +75,7 @@ const (
bodyCacheLimit = 256
blockCacheLimit = 256
receiptsCacheLimit = 32
+ txLookupCacheLimit = 1024
maxFutureBlocks = 256
maxTimeFutureBlocks = 30
badBlockLimit = 10
@@ -155,6 +156,7 @@ type BlockChain struct {
bodyRLPCache *lru.Cache // Cache for the most recent block bodies in RLP encoded format
receiptsCache *lru.Cache // Cache for the most recent receipts per block
blockCache *lru.Cache // Cache for the most recent entire blocks
+ txLookupCache *lru.Cache // Cache for the most recent transaction lookup data.
futureBlocks *lru.Cache // future blocks are blocks added for later processing
quit chan struct{} // blockchain quit channel
@@ -189,6 +191,7 @@ func NewBlockChain(db ethdb.Database, cacheConfig *CacheConfig, chainConfig *par
bodyRLPCache, _ := lru.New(bodyCacheLimit)
receiptsCache, _ := lru.New(receiptsCacheLimit)
blockCache, _ := lru.New(blockCacheLimit)
+ txLookupCache, _ := lru.New(txLookupCacheLimit)
futureBlocks, _ := lru.New(maxFutureBlocks)
badBlocks, _ := lru.New(badBlockLimit)
@@ -204,6 +207,7 @@ func NewBlockChain(db ethdb.Database, cacheConfig *CacheConfig, chainConfig *par
bodyRLPCache: bodyRLPCache,
receiptsCache: receiptsCache,
blockCache: blockCache,
+ txLookupCache: txLookupCache,
futureBlocks: futureBlocks,
engine: engine,
vmConfig: vmConfig,
@@ -440,6 +444,7 @@ func (bc *BlockChain) SetHead(head uint64) error {
bc.bodyRLPCache.Purge()
bc.receiptsCache.Purge()
bc.blockCache.Purge()
+ bc.txLookupCache.Purge()
bc.futureBlocks.Purge()
return bc.loadLastState()
@@ -921,6 +926,7 @@ func (bc *BlockChain) truncateAncient(head uint64) error {
bc.bodyRLPCache.Purge()
bc.receiptsCache.Purge()
bc.blockCache.Purge()
+ bc.txLookupCache.Purge()
bc.futureBlocks.Purge()
log.Info("Rewind ancient data", "number", head)
@@ -2151,6 +2157,22 @@ func (bc *BlockChain) GetHeaderByNumber(number uint64) *types.Header {
return bc.hc.GetHeaderByNumber(number)
}
+// GetTransactionLookup retrieves the lookup associate with the given transaction
+// hash from the cache or database.
+func (bc *BlockChain) GetTransactionLookup(hash common.Hash) *rawdb.LegacyTxLookupEntry {
+ // Short circuit if the txlookup already in the cache, retrieve otherwise
+ if lookup, exist := bc.txLookupCache.Get(hash); exist {
+ return lookup.(*rawdb.LegacyTxLookupEntry)
+ }
+ tx, blockHash, blockNumber, txIndex := rawdb.ReadTransaction(bc.db, hash)
+ if tx == nil {
+ return nil
+ }
+ lookup := &rawdb.LegacyTxLookupEntry{BlockHash: blockHash, BlockIndex: blockNumber, Index: txIndex}
+ bc.txLookupCache.Add(hash, lookup)
+ return lookup
+}
+
// Config retrieves the chain's fork configuration.
func (bc *BlockChain) Config() *params.ChainConfig { return bc.chainConfig }
diff --git a/les/api.go b/les/api.go
index e20f72cad0..bbef771f04 100644
--- a/les/api.go
+++ b/les/api.go
@@ -30,15 +30,11 @@ var (
// PrivateLightAPI provides an API to access the LES light server or light client.
type PrivateLightAPI struct {
backend *lesCommons
- reg *checkpointOracle
}
// NewPrivateLightAPI creates a new LES service API.
-func NewPrivateLightAPI(backend *lesCommons, reg *checkpointOracle) *PrivateLightAPI {
- return &PrivateLightAPI{
- backend: backend,
- reg: reg,
- }
+func NewPrivateLightAPI(backend *lesCommons) *PrivateLightAPI {
+ return &PrivateLightAPI{backend: backend}
}
// LatestCheckpoint returns the latest local checkpoint package.
@@ -67,7 +63,7 @@ func (api *PrivateLightAPI) LatestCheckpoint() ([4]string, error) {
// result[2], 32 bytes hex encoded latest section bloom trie root hash
func (api *PrivateLightAPI) GetCheckpoint(index uint64) ([3]string, error) {
var res [3]string
- cp := api.backend.getLocalCheckpoint(index)
+ cp := api.backend.localCheckpoint(index)
if cp.Empty() {
return res, errNoCheckpoint
}
@@ -77,8 +73,8 @@ func (api *PrivateLightAPI) GetCheckpoint(index uint64) ([3]string, error) {
// GetCheckpointContractAddress returns the contract contract address in hex format.
func (api *PrivateLightAPI) GetCheckpointContractAddress() (string, error) {
- if api.reg == nil {
+ if api.backend.oracle == nil {
return "", errNotActivated
}
- return api.reg.config.Address.Hex(), nil
+ return api.backend.oracle.config.Address.Hex(), nil
}
diff --git a/les/api_backend.go b/les/api_backend.go
index 07601c2423..5cd432dcf8 100644
--- a/les/api_backend.go
+++ b/les/api_backend.go
@@ -54,7 +54,7 @@ func (b *LesApiBackend) CurrentBlock() *types.Block {
}
func (b *LesApiBackend) SetHead(number uint64) {
- b.eth.protocolManager.downloader.Cancel()
+ b.eth.handler.downloader.Cancel()
b.eth.blockchain.SetHead(number)
}
diff --git a/les/api_test.go b/les/api_test.go
index 6e622313ca..7d3b4ce5da 100644
--- a/les/api_test.go
+++ b/les/api_test.go
@@ -78,19 +78,16 @@ func TestCapacityAPI10(t *testing.T) {
// while connected and going back and forth between free and priority mode with
// the supplied API calls is also thoroughly tested.
func testCapacityAPI(t *testing.T, clientCount int) {
+ // Skip test if no data dir specified
if testServerDataDir == "" {
- // Skip test if no data dir specified
return
}
-
for !testSim(t, 1, clientCount, []string{testServerDataDir}, nil, func(ctx context.Context, net *simulations.Network, servers []*simulations.Node, clients []*simulations.Node) bool {
if len(servers) != 1 {
t.Fatalf("Invalid number of servers: %d", len(servers))
}
server := servers[0]
- clientRpcClients := make([]*rpc.Client, len(clients))
-
serverRpcClient, err := server.Client()
if err != nil {
t.Fatalf("Failed to obtain rpc client: %v", err)
@@ -105,13 +102,13 @@ func testCapacityAPI(t *testing.T, clientCount int) {
}
freeIdx := rand.Intn(len(clients))
+ clientRpcClients := make([]*rpc.Client, len(clients))
for i, client := range clients {
var err error
clientRpcClients[i], err = client.Client()
if err != nil {
t.Fatalf("Failed to obtain rpc client: %v", err)
}
-
t.Log("connecting client", i)
if i != freeIdx {
setCapacity(ctx, t, serverRpcClient, client.ID(), testCap/uint64(len(clients)))
@@ -138,10 +135,13 @@ func testCapacityAPI(t *testing.T, clientCount int) {
reqCount := make([]uint64, len(clientRpcClients))
+ // Send light request like crazy.
for i, c := range clientRpcClients {
wg.Add(1)
i, c := i, c
go func() {
+ defer wg.Done()
+
queue := make(chan struct{}, 100)
reqCount[i] = 0
for {
@@ -149,10 +149,8 @@ func testCapacityAPI(t *testing.T, clientCount int) {
case queue <- struct{}{}:
select {
case <-stop:
- wg.Done()
return
case <-ctx.Done():
- wg.Done()
return
default:
wg.Add(1)
@@ -169,10 +167,8 @@ func testCapacityAPI(t *testing.T, clientCount int) {
}()
}
case <-stop:
- wg.Done()
return
case <-ctx.Done():
- wg.Done()
return
}
}
@@ -313,12 +309,10 @@ func getHead(ctx context.Context, t *testing.T, client *rpc.Client) (uint64, com
}
func testRequest(ctx context.Context, t *testing.T, client *rpc.Client) bool {
- //res := make(map[string]interface{})
var res string
var addr common.Address
rand.Read(addr[:])
c, _ := context.WithTimeout(ctx, time.Second*12)
- // if err := client.CallContext(ctx, &res, "eth_getProof", addr, nil, "latest"); err != nil {
err := client.CallContext(c, &res, "eth_getBalance", addr, "latest")
if err != nil {
t.Log("request error:", err)
@@ -418,7 +412,6 @@ func NewNetwork() (*simulations.Network, func(), error) {
adapterTeardown()
net.Shutdown()
}
-
return net, teardown, nil
}
@@ -516,7 +509,6 @@ func newLesServerService(ctx *adapters.ServiceContext) (node.Service, error) {
if err != nil {
return nil, err
}
-
server, err := NewLesServer(ethereum, &config)
if err != nil {
return nil, err
diff --git a/les/benchmark.go b/les/benchmark.go
index 74dfcf7c9e..fbba53e4d5 100644
--- a/les/benchmark.go
+++ b/les/benchmark.go
@@ -39,7 +39,7 @@ import (
// requestBenchmark is an interface for different randomized request generators
type requestBenchmark interface {
// init initializes the generator for generating the given number of randomized requests
- init(pm *ProtocolManager, count int) error
+ init(h *serverHandler, count int) error
// request initiates sending a single request to the given peer
request(peer *peer, index int) error
}
@@ -52,10 +52,10 @@ type benchmarkBlockHeaders struct {
hashes []common.Hash
}
-func (b *benchmarkBlockHeaders) init(pm *ProtocolManager, count int) error {
+func (b *benchmarkBlockHeaders) init(h *serverHandler, count int) error {
d := int64(b.amount-1) * int64(b.skip+1)
b.offset = 0
- b.randMax = pm.blockchain.CurrentHeader().Number.Int64() + 1 - d
+ b.randMax = h.blockchain.CurrentHeader().Number.Int64() + 1 - d
if b.randMax < 0 {
return fmt.Errorf("chain is too short")
}
@@ -65,7 +65,7 @@ func (b *benchmarkBlockHeaders) init(pm *ProtocolManager, count int) error {
if b.byHash {
b.hashes = make([]common.Hash, count)
for i := range b.hashes {
- b.hashes[i] = rawdb.ReadCanonicalHash(pm.chainDb, uint64(b.offset+rand.Int63n(b.randMax)))
+ b.hashes[i] = rawdb.ReadCanonicalHash(h.chainDb, uint64(b.offset+rand.Int63n(b.randMax)))
}
}
return nil
@@ -85,11 +85,11 @@ type benchmarkBodiesOrReceipts struct {
hashes []common.Hash
}
-func (b *benchmarkBodiesOrReceipts) init(pm *ProtocolManager, count int) error {
- randMax := pm.blockchain.CurrentHeader().Number.Int64() + 1
+func (b *benchmarkBodiesOrReceipts) init(h *serverHandler, count int) error {
+ randMax := h.blockchain.CurrentHeader().Number.Int64() + 1
b.hashes = make([]common.Hash, count)
for i := range b.hashes {
- b.hashes[i] = rawdb.ReadCanonicalHash(pm.chainDb, uint64(rand.Int63n(randMax)))
+ b.hashes[i] = rawdb.ReadCanonicalHash(h.chainDb, uint64(rand.Int63n(randMax)))
}
return nil
}
@@ -108,8 +108,8 @@ type benchmarkProofsOrCode struct {
headHash common.Hash
}
-func (b *benchmarkProofsOrCode) init(pm *ProtocolManager, count int) error {
- b.headHash = pm.blockchain.CurrentHeader().Hash()
+func (b *benchmarkProofsOrCode) init(h *serverHandler, count int) error {
+ b.headHash = h.blockchain.CurrentHeader().Hash()
return nil
}
@@ -130,11 +130,11 @@ type benchmarkHelperTrie struct {
sectionCount, headNum uint64
}
-func (b *benchmarkHelperTrie) init(pm *ProtocolManager, count int) error {
+func (b *benchmarkHelperTrie) init(h *serverHandler, count int) error {
if b.bloom {
- b.sectionCount, b.headNum, _ = pm.server.bloomTrieIndexer.Sections()
+ b.sectionCount, b.headNum, _ = h.server.bloomTrieIndexer.Sections()
} else {
- b.sectionCount, _, _ = pm.server.chtIndexer.Sections()
+ b.sectionCount, _, _ = h.server.chtIndexer.Sections()
b.headNum = b.sectionCount*params.CHTFrequency - 1
}
if b.sectionCount == 0 {
@@ -170,7 +170,7 @@ type benchmarkTxSend struct {
txs types.Transactions
}
-func (b *benchmarkTxSend) init(pm *ProtocolManager, count int) error {
+func (b *benchmarkTxSend) init(h *serverHandler, count int) error {
key, _ := crypto.GenerateKey()
addr := crypto.PubkeyToAddress(key.PublicKey)
signer := types.NewEIP155Signer(big.NewInt(18))
@@ -196,7 +196,7 @@ func (b *benchmarkTxSend) request(peer *peer, index int) error {
// benchmarkTxStatus implements requestBenchmark
type benchmarkTxStatus struct{}
-func (b *benchmarkTxStatus) init(pm *ProtocolManager, count int) error {
+func (b *benchmarkTxStatus) init(h *serverHandler, count int) error {
return nil
}
@@ -217,7 +217,7 @@ type benchmarkSetup struct {
// runBenchmark runs a benchmark cycle for all benchmark types in the specified
// number of passes
-func (pm *ProtocolManager) runBenchmark(benchmarks []requestBenchmark, passCount int, targetTime time.Duration) []*benchmarkSetup {
+func (h *serverHandler) runBenchmark(benchmarks []requestBenchmark, passCount int, targetTime time.Duration) []*benchmarkSetup {
setup := make([]*benchmarkSetup, len(benchmarks))
for i, b := range benchmarks {
setup[i] = &benchmarkSetup{req: b}
@@ -239,7 +239,7 @@ func (pm *ProtocolManager) runBenchmark(benchmarks []requestBenchmark, passCount
if next.totalTime > 0 {
count = int(uint64(next.totalCount) * uint64(targetTime) / uint64(next.totalTime))
}
- if err := pm.measure(next, count); err != nil {
+ if err := h.measure(next, count); err != nil {
next.err = err
}
}
@@ -275,14 +275,15 @@ func (m *meteredPipe) WriteMsg(msg p2p.Msg) error {
// measure runs a benchmark for a single type in a single pass, with the given
// number of requests
-func (pm *ProtocolManager) measure(setup *benchmarkSetup, count int) error {
+func (h *serverHandler) measure(setup *benchmarkSetup, count int) error {
clientPipe, serverPipe := p2p.MsgPipe()
clientMeteredPipe := &meteredPipe{rw: clientPipe}
serverMeteredPipe := &meteredPipe{rw: serverPipe}
var id enode.ID
rand.Read(id[:])
- clientPeer := pm.newPeer(lpv2, NetworkId, p2p.NewPeer(id, "client", nil), clientMeteredPipe)
- serverPeer := pm.newPeer(lpv2, NetworkId, p2p.NewPeer(id, "server", nil), serverMeteredPipe)
+
+ clientPeer := newPeer(lpv2, NetworkId, false, p2p.NewPeer(id, "client", nil), clientMeteredPipe)
+ serverPeer := newPeer(lpv2, NetworkId, false, p2p.NewPeer(id, "server", nil), serverMeteredPipe)
serverPeer.sendQueue = newExecQueue(count)
serverPeer.announceType = announceTypeNone
serverPeer.fcCosts = make(requestCostTable)
@@ -291,10 +292,10 @@ func (pm *ProtocolManager) measure(setup *benchmarkSetup, count int) error {
serverPeer.fcCosts[code] = c
}
serverPeer.fcParams = flowcontrol.ServerParams{BufLimit: 1, MinRecharge: 1}
- serverPeer.fcClient = flowcontrol.NewClientNode(pm.server.fcManager, serverPeer.fcParams)
+ serverPeer.fcClient = flowcontrol.NewClientNode(h.server.fcManager, serverPeer.fcParams)
defer serverPeer.fcClient.Disconnect()
- if err := setup.req.init(pm, count); err != nil {
+ if err := setup.req.init(h, count); err != nil {
return err
}
@@ -311,7 +312,7 @@ func (pm *ProtocolManager) measure(setup *benchmarkSetup, count int) error {
}()
go func() {
for i := 0; i < count; i++ {
- if err := pm.handleMsg(serverPeer); err != nil {
+ if err := h.handleMsg(serverPeer); err != nil {
errCh <- err
return
}
@@ -336,7 +337,7 @@ func (pm *ProtocolManager) measure(setup *benchmarkSetup, count int) error {
if err != nil {
return err
}
- case <-pm.quitSync:
+ case <-h.closeCh:
clientPipe.Close()
serverPipe.Close()
return fmt.Errorf("Benchmark cancelled")
diff --git a/les/bloombits.go b/les/bloombits.go
index aea0fcd5f4..a98524ce2e 100644
--- a/les/bloombits.go
+++ b/les/bloombits.go
@@ -46,9 +46,10 @@ const (
func (eth *LightEthereum) startBloomHandlers(sectionSize uint64) {
for i := 0; i < bloomServiceThreads; i++ {
go func() {
+ defer eth.wg.Done()
for {
select {
- case <-eth.shutdownChan:
+ case <-eth.closeCh:
return
case request := <-eth.bloomRequests:
diff --git a/les/backend.go b/les/client.go
similarity index 78%
rename from les/backend.go
rename to les/client.go
index c067afaea6..461baf645e 100644
--- a/les/backend.go
+++ b/les/client.go
@@ -19,8 +19,6 @@ package les
import (
"fmt"
- "sync"
- "time"
"github.com/ethereum/go-ethereum/accounts"
"github.com/ethereum/go-ethereum/accounts/abi/bind"
@@ -42,7 +40,7 @@ import (
"github.com/ethereum/go-ethereum/log"
"github.com/ethereum/go-ethereum/node"
"github.com/ethereum/go-ethereum/p2p"
- "github.com/ethereum/go-ethereum/p2p/discv5"
+ "github.com/ethereum/go-ethereum/p2p/enode"
"github.com/ethereum/go-ethereum/params"
"github.com/ethereum/go-ethereum/rpc"
)
@@ -50,33 +48,23 @@ import (
type LightEthereum struct {
lesCommons
- odr *LesOdr
- chainConfig *params.ChainConfig
- // Channel for shutting down the service
- shutdownChan chan bool
-
- // Handlers
- peers *peerSet
- txPool *light.TxPool
- blockchain *light.LightChain
- serverPool *serverPool
reqDist *requestDistributor
retriever *retrieveManager
+ odr *LesOdr
relay *lesTxRelay
+ handler *clientHandler
+ txPool *light.TxPool
+ blockchain *light.LightChain
+ serverPool *serverPool
bloomRequests chan chan *bloombits.Retrieval // Channel receiving bloom data retrieval requests
- bloomIndexer *core.ChainIndexer
-
- ApiBackend *LesApiBackend
+ bloomIndexer *core.ChainIndexer // Bloom indexer operating during block imports
+ ApiBackend *LesApiBackend
eventMux *event.TypeMux
engine consensus.Engine
accountManager *accounts.Manager
-
- networkId uint64
- netRPCService *ethapi.PublicNetAPI
-
- wg sync.WaitGroup
+ netRPCService *ethapi.PublicNetAPI
}
func New(ctx *node.ServiceContext, config *eth.Config) (*LightEthereum, error) {
@@ -91,26 +79,24 @@ func New(ctx *node.ServiceContext, config *eth.Config) (*LightEthereum, error) {
log.Info("Initialised chain configuration", "config", chainConfig)
peers := newPeerSet()
- quitSync := make(chan struct{})
-
leth := &LightEthereum{
lesCommons: lesCommons{
- chainDb: chainDb,
- config: config,
- iConfig: light.DefaultClientIndexerConfig,
+ genesis: genesisHash,
+ config: config,
+ chainConfig: chainConfig,
+ iConfig: light.DefaultClientIndexerConfig,
+ chainDb: chainDb,
+ peers: peers,
+ closeCh: make(chan struct{}),
},
- chainConfig: chainConfig,
eventMux: ctx.EventMux,
- peers: peers,
- reqDist: newRequestDistributor(peers, quitSync, &mclock.System{}),
+ reqDist: newRequestDistributor(peers, &mclock.System{}),
accountManager: ctx.AccountManager,
engine: eth.CreateConsensusEngine(ctx, chainConfig, &config.Ethash, nil, false, chainDb),
- shutdownChan: make(chan bool),
- networkId: config.NetworkId,
bloomRequests: make(chan chan *bloombits.Retrieval),
bloomIndexer: eth.NewBloomIndexer(chainDb, params.BloomBitsBlocksClient, params.HelperTrieConfirmations),
+ serverPool: newServerPool(chainDb, config.UltraLightServers),
}
- leth.serverPool = newServerPool(chainDb, quitSync, &leth.wg, leth.config.UltraLightServers)
leth.retriever = newRetrieveManager(peers, leth.reqDist, leth.serverPool)
leth.relay = newLesTxRelay(peers, leth.retriever)
@@ -128,11 +114,26 @@ func New(ctx *node.ServiceContext, config *eth.Config) (*LightEthereum, error) {
if leth.blockchain, err = light.NewLightChain(leth.odr, leth.chainConfig, leth.engine, checkpoint); err != nil {
return nil, err
}
+ leth.chainReader = leth.blockchain
+ leth.txPool = light.NewTxPool(leth.chainConfig, leth.blockchain, leth.relay)
+
+ // Set up checkpoint oracle.
+ oracle := config.CheckpointOracle
+ if oracle == nil {
+ oracle = params.CheckpointOracles[genesisHash]
+ }
+ leth.oracle = newCheckpointOracle(oracle, leth.localCheckpoint)
+
// Note: AddChildIndexer starts the update process for the child
leth.bloomIndexer.AddChildIndexer(leth.bloomTrieIndexer)
leth.chtIndexer.Start(leth.blockchain)
leth.bloomIndexer.Start(leth.blockchain)
+ leth.handler = newClientHandler(config.UltraLightServers, config.UltraLightFraction, checkpoint, leth)
+ if leth.handler.ulc != nil {
+ log.Warn("Ultra light client is enabled", "trustedNodes", len(leth.handler.ulc.keys), "minTrustedFraction", leth.handler.ulc.fraction)
+ leth.blockchain.DisableCheckFreq()
+ }
// Rewind the chain in case of an incompatible config upgrade.
if compat, ok := genesisErr.(*params.ConfigCompatError); ok {
log.Warn("Rewinding chain to upgrade configuration", "err", compat)
@@ -140,41 +141,16 @@ func New(ctx *node.ServiceContext, config *eth.Config) (*LightEthereum, error) {
rawdb.WriteChainConfig(chainDb, genesisHash, chainConfig)
}
- leth.txPool = light.NewTxPool(leth.chainConfig, leth.blockchain, leth.relay)
leth.ApiBackend = &LesApiBackend{ctx.ExtRPCEnabled(), leth, nil}
-
gpoParams := config.GPO
if gpoParams.Default == nil {
gpoParams.Default = config.Miner.GasPrice
}
leth.ApiBackend.gpo = gasprice.NewOracle(leth.ApiBackend, gpoParams)
- oracle := config.CheckpointOracle
- if oracle == nil {
- oracle = params.CheckpointOracles[genesisHash]
- }
- registrar := newCheckpointOracle(oracle, leth.getLocalCheckpoint)
- if leth.protocolManager, err = NewProtocolManager(leth.chainConfig, checkpoint, light.DefaultClientIndexerConfig, config.UltraLightServers, config.UltraLightFraction, true, config.NetworkId, leth.eventMux, leth.peers, leth.blockchain, nil, chainDb, leth.odr, leth.serverPool, registrar, quitSync, &leth.wg, nil); err != nil {
- return nil, err
- }
- if leth.protocolManager.ulc != nil {
- log.Warn("Ultra light client is enabled", "servers", len(config.UltraLightServers), "fraction", config.UltraLightFraction)
- leth.blockchain.DisableCheckFreq()
- }
return leth, nil
}
-func lesTopic(genesisHash common.Hash, protocolVersion uint) discv5.Topic {
- var name string
- switch protocolVersion {
- case lpv2:
- name = "LES2"
- default:
- panic(nil)
- }
- return discv5.Topic(name + "@" + common.Bytes2Hex(genesisHash.Bytes()[0:8]))
-}
-
type LightDummyAPI struct{}
// Etherbase is the address that mining rewards will be send to
@@ -209,7 +185,7 @@ func (s *LightEthereum) APIs() []rpc.API {
}, {
Namespace: "eth",
Version: "1.0",
- Service: downloader.NewPublicDownloaderAPI(s.protocolManager.downloader, s.eventMux),
+ Service: downloader.NewPublicDownloaderAPI(s.handler.downloader, s.eventMux),
Public: true,
}, {
Namespace: "eth",
@@ -224,7 +200,7 @@ func (s *LightEthereum) APIs() []rpc.API {
}, {
Namespace: "les",
Version: "1.0",
- Service: NewPrivateLightAPI(&s.lesCommons, s.protocolManager.reg),
+ Service: NewPrivateLightAPI(&s.lesCommons),
Public: false,
},
}...)
@@ -238,54 +214,63 @@ func (s *LightEthereum) BlockChain() *light.LightChain { return s.blockchai
func (s *LightEthereum) TxPool() *light.TxPool { return s.txPool }
func (s *LightEthereum) Engine() consensus.Engine { return s.engine }
func (s *LightEthereum) LesVersion() int { return int(ClientProtocolVersions[0]) }
-func (s *LightEthereum) Downloader() *downloader.Downloader { return s.protocolManager.downloader }
+func (s *LightEthereum) Downloader() *downloader.Downloader { return s.handler.downloader }
func (s *LightEthereum) EventMux() *event.TypeMux { return s.eventMux }
// Protocols implements node.Service, returning all the currently configured
// network protocols to start.
func (s *LightEthereum) Protocols() []p2p.Protocol {
- return s.makeProtocols(ClientProtocolVersions)
+ return s.makeProtocols(ClientProtocolVersions, s.handler.runPeer, func(id enode.ID) interface{} {
+ if p := s.peers.Peer(peerIdToString(id)); p != nil {
+ return p.Info()
+ }
+ return nil
+ })
}
// Start implements node.Service, starting all internal goroutines needed by the
-// Ethereum protocol implementation.
+// light ethereum protocol implementation.
func (s *LightEthereum) Start(srvr *p2p.Server) error {
log.Warn("Light client mode is an experimental feature")
+
+ // Start bloom request workers.
+ s.wg.Add(bloomServiceThreads)
s.startBloomHandlers(params.BloomBitsBlocksClient)
- s.netRPCService = ethapi.NewPublicNetAPI(srvr, s.networkId)
+
+ s.netRPCService = ethapi.NewPublicNetAPI(srvr, s.config.NetworkId)
+
// clients are searching for the first advertised protocol in the list
protocolVersion := AdvertiseProtocolVersions[0]
s.serverPool.start(srvr, lesTopic(s.blockchain.Genesis().Hash(), protocolVersion))
- s.protocolManager.Start(s.config.LightPeers)
return nil
}
// Stop implements node.Service, terminating all internal goroutines used by the
// Ethereum protocol.
func (s *LightEthereum) Stop() error {
+ close(s.closeCh)
+ s.peers.Close()
+ s.reqDist.close()
s.odr.Stop()
s.relay.Stop()
s.bloomIndexer.Close()
s.chtIndexer.Close()
s.blockchain.Stop()
- s.protocolManager.Stop()
+ s.handler.stop()
s.txPool.Stop()
s.engine.Close()
-
s.eventMux.Stop()
-
- time.Sleep(time.Millisecond * 200)
+ s.serverPool.stop()
s.chainDb.Close()
- close(s.shutdownChan)
-
+ s.wg.Wait()
+ log.Info("Light ethereum stopped")
return nil
}
// SetClient sets the rpc client and binds the registrar contract.
func (s *LightEthereum) SetContractBackend(backend bind.ContractBackend) {
- // Short circuit if registrar is nil
- if s.protocolManager.reg == nil {
+ if s.oracle == nil {
return
}
- s.protocolManager.reg.start(backend)
+ s.oracle.start(backend)
}
diff --git a/les/client_handler.go b/les/client_handler.go
new file mode 100644
index 0000000000..aff05ddbc9
--- /dev/null
+++ b/les/client_handler.go
@@ -0,0 +1,401 @@
+// Copyright 2019 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"
+ "sync"
+ "time"
+
+ "github.com/ethereum/go-ethereum/common"
+ "github.com/ethereum/go-ethereum/common/mclock"
+ "github.com/ethereum/go-ethereum/core/types"
+ "github.com/ethereum/go-ethereum/eth/downloader"
+ "github.com/ethereum/go-ethereum/light"
+ "github.com/ethereum/go-ethereum/log"
+ "github.com/ethereum/go-ethereum/p2p"
+ "github.com/ethereum/go-ethereum/params"
+)
+
+// clientHandler is responsible for receiving and processing all incoming server
+// responses.
+type clientHandler struct {
+ ulc *ulc
+ checkpoint *params.TrustedCheckpoint
+ fetcher *lightFetcher
+ downloader *downloader.Downloader
+ backend *LightEthereum
+
+ closeCh chan struct{}
+ wg sync.WaitGroup // WaitGroup used to track all connected peers.
+}
+
+func newClientHandler(ulcServers []string, ulcFraction int, checkpoint *params.TrustedCheckpoint, backend *LightEthereum) *clientHandler {
+ handler := &clientHandler{
+ backend: backend,
+ closeCh: make(chan struct{}),
+ }
+ if ulcServers != nil {
+ ulc, err := newULC(ulcServers, ulcFraction)
+ if err != nil {
+ log.Error("Failed to initialize ultra light client")
+ }
+ handler.ulc = ulc
+ log.Info("Enable ultra light client mode")
+ }
+ var height uint64
+ if checkpoint != nil {
+ height = (checkpoint.SectionIndex+1)*params.CHTFrequency - 1
+ }
+ handler.fetcher = newLightFetcher(handler)
+ handler.downloader = downloader.New(height, backend.chainDb, nil, backend.eventMux, nil, backend.blockchain, handler.removePeer)
+ handler.backend.peers.notify((*downloaderPeerNotify)(handler))
+ return handler
+}
+
+func (h *clientHandler) stop() {
+ close(h.closeCh)
+ h.downloader.Terminate()
+ h.fetcher.close()
+ h.wg.Wait()
+}
+
+// runPeer is the p2p protocol run function for the given version.
+func (h *clientHandler) runPeer(version uint, p *p2p.Peer, rw p2p.MsgReadWriter) error {
+ trusted := false
+ if h.ulc != nil {
+ trusted = h.ulc.trusted(p.ID())
+ }
+ peer := newPeer(int(version), h.backend.config.NetworkId, trusted, p, newMeteredMsgWriter(rw, int(version)))
+ peer.poolEntry = h.backend.serverPool.connect(peer, peer.Node())
+ if peer.poolEntry == nil {
+ return p2p.DiscRequested
+ }
+ h.wg.Add(1)
+ defer h.wg.Done()
+ err := h.handle(peer)
+ h.backend.serverPool.disconnect(peer.poolEntry)
+ return err
+}
+
+func (h *clientHandler) handle(p *peer) error {
+ if h.backend.peers.Len() >= h.backend.config.LightPeers && !p.Peer.Info().Network.Trusted {
+ return p2p.DiscTooManyPeers
+ }
+ p.Log().Debug("Light Ethereum peer connected", "name", p.Name())
+
+ // Execute the LES handshake
+ var (
+ head = h.backend.blockchain.CurrentHeader()
+ hash = head.Hash()
+ number = head.Number.Uint64()
+ td = h.backend.blockchain.GetTd(hash, number)
+ )
+ if err := p.Handshake(td, hash, number, h.backend.blockchain.Genesis().Hash(), nil); err != nil {
+ p.Log().Debug("Light Ethereum handshake failed", "err", err)
+ return err
+ }
+ // Register the peer locally
+ if err := h.backend.peers.Register(p); err != nil {
+ p.Log().Error("Light Ethereum peer registration failed", "err", err)
+ return err
+ }
+ serverConnectionGauge.Update(int64(h.backend.peers.Len()))
+
+ connectedAt := mclock.Now()
+ defer func() {
+ h.backend.peers.Unregister(p.id)
+ connectionTimer.Update(time.Duration(mclock.Now() - connectedAt))
+ serverConnectionGauge.Update(int64(h.backend.peers.Len()))
+ }()
+
+ h.fetcher.announce(p, p.headInfo)
+
+ // pool entry can be nil during the unit test.
+ if p.poolEntry != nil {
+ h.backend.serverPool.registered(p.poolEntry)
+ }
+ // Spawn a main loop to handle all incoming messages.
+ for {
+ if err := h.handleMsg(p); err != nil {
+ p.Log().Debug("Light Ethereum message handling failed", "err", err)
+ p.fcServer.DumpLogs()
+ return err
+ }
+ }
+}
+
+// handleMsg is invoked whenever an inbound message is received from a remote
+// peer. The remote connection is torn down upon returning any error.
+func (h *clientHandler) handleMsg(p *peer) error {
+ // Read the next message from the remote peer, and ensure it's fully consumed
+ msg, err := p.rw.ReadMsg()
+ if err != nil {
+ return err
+ }
+ p.Log().Trace("Light Ethereum message arrived", "code", msg.Code, "bytes", msg.Size)
+
+ if msg.Size > ProtocolMaxMsgSize {
+ return errResp(ErrMsgTooLarge, "%v > %v", msg.Size, ProtocolMaxMsgSize)
+ }
+ defer msg.Discard()
+
+ var deliverMsg *Msg
+
+ // Handle the message depending on its contents
+ switch msg.Code {
+ case AnnounceMsg:
+ p.Log().Trace("Received announce message")
+ var req announceData
+ if err := msg.Decode(&req); err != nil {
+ return errResp(ErrDecode, "%v: %v", msg, err)
+ }
+ if err := req.sanityCheck(); err != nil {
+ return err
+ }
+ update, size := req.Update.decode()
+ if p.rejectUpdate(size) {
+ return errResp(ErrRequestRejected, "")
+ }
+ p.updateFlowControl(update)
+
+ if req.Hash != (common.Hash{}) {
+ if p.announceType == announceTypeNone {
+ return errResp(ErrUnexpectedResponse, "")
+ }
+ if p.announceType == announceTypeSigned {
+ if err := req.checkSignature(p.ID(), update); err != nil {
+ p.Log().Trace("Invalid announcement signature", "err", err)
+ return err
+ }
+ p.Log().Trace("Valid announcement signature")
+ }
+ p.Log().Trace("Announce message content", "number", req.Number, "hash", req.Hash, "td", req.Td, "reorg", req.ReorgDepth)
+ h.fetcher.announce(p, &req)
+ }
+ case BlockHeadersMsg:
+ p.Log().Trace("Received block header response message")
+ var resp struct {
+ ReqID, BV uint64
+ Headers []*types.Header
+ }
+ if err := msg.Decode(&resp); err != nil {
+ return errResp(ErrDecode, "msg %v: %v", msg, err)
+ }
+ p.fcServer.ReceivedReply(resp.ReqID, resp.BV)
+ if h.fetcher.requestedID(resp.ReqID) {
+ h.fetcher.deliverHeaders(p, resp.ReqID, resp.Headers)
+ } else {
+ if err := h.downloader.DeliverHeaders(p.id, resp.Headers); err != nil {
+ log.Debug("Failed to deliver headers", "err", err)
+ }
+ }
+ case BlockBodiesMsg:
+ p.Log().Trace("Received block bodies response")
+ var resp struct {
+ ReqID, BV uint64
+ Data []*types.Body
+ }
+ if err := msg.Decode(&resp); err != nil {
+ return errResp(ErrDecode, "msg %v: %v", msg, err)
+ }
+ p.fcServer.ReceivedReply(resp.ReqID, resp.BV)
+ deliverMsg = &Msg{
+ MsgType: MsgBlockBodies,
+ ReqID: resp.ReqID,
+ Obj: resp.Data,
+ }
+ case CodeMsg:
+ p.Log().Trace("Received code response")
+ var resp struct {
+ ReqID, BV uint64
+ Data [][]byte
+ }
+ if err := msg.Decode(&resp); err != nil {
+ return errResp(ErrDecode, "msg %v: %v", msg, err)
+ }
+ p.fcServer.ReceivedReply(resp.ReqID, resp.BV)
+ deliverMsg = &Msg{
+ MsgType: MsgCode,
+ ReqID: resp.ReqID,
+ Obj: resp.Data,
+ }
+ case ReceiptsMsg:
+ p.Log().Trace("Received receipts response")
+ var resp struct {
+ ReqID, BV uint64
+ Receipts []types.Receipts
+ }
+ if err := msg.Decode(&resp); err != nil {
+ return errResp(ErrDecode, "msg %v: %v", msg, err)
+ }
+ p.fcServer.ReceivedReply(resp.ReqID, resp.BV)
+ deliverMsg = &Msg{
+ MsgType: MsgReceipts,
+ ReqID: resp.ReqID,
+ Obj: resp.Receipts,
+ }
+ case ProofsV2Msg:
+ p.Log().Trace("Received les/2 proofs response")
+ var resp struct {
+ ReqID, BV uint64
+ Data light.NodeList
+ }
+ if err := msg.Decode(&resp); err != nil {
+ return errResp(ErrDecode, "msg %v: %v", msg, err)
+ }
+ p.fcServer.ReceivedReply(resp.ReqID, resp.BV)
+ deliverMsg = &Msg{
+ MsgType: MsgProofsV2,
+ ReqID: resp.ReqID,
+ Obj: resp.Data,
+ }
+ case HelperTrieProofsMsg:
+ p.Log().Trace("Received helper trie proof response")
+ var resp struct {
+ ReqID, BV uint64
+ Data HelperTrieResps
+ }
+ if err := msg.Decode(&resp); err != nil {
+ return errResp(ErrDecode, "msg %v: %v", msg, err)
+ }
+ p.fcServer.ReceivedReply(resp.ReqID, resp.BV)
+ deliverMsg = &Msg{
+ MsgType: MsgHelperTrieProofs,
+ ReqID: resp.ReqID,
+ Obj: resp.Data,
+ }
+ case TxStatusMsg:
+ p.Log().Trace("Received tx status response")
+ var resp struct {
+ ReqID, BV uint64
+ Status []light.TxStatus
+ }
+ if err := msg.Decode(&resp); err != nil {
+ return errResp(ErrDecode, "msg %v: %v", msg, err)
+ }
+ p.fcServer.ReceivedReply(resp.ReqID, resp.BV)
+ deliverMsg = &Msg{
+ MsgType: MsgTxStatus,
+ ReqID: resp.ReqID,
+ Obj: resp.Status,
+ }
+ case StopMsg:
+ p.freezeServer(true)
+ h.backend.retriever.frozen(p)
+ p.Log().Debug("Service stopped")
+ case ResumeMsg:
+ var bv uint64
+ if err := msg.Decode(&bv); err != nil {
+ return errResp(ErrDecode, "msg %v: %v", msg, err)
+ }
+ p.fcServer.ResumeFreeze(bv)
+ p.freezeServer(false)
+ p.Log().Debug("Service resumed")
+ default:
+ p.Log().Trace("Received invalid message", "code", msg.Code)
+ return errResp(ErrInvalidMsgCode, "%v", msg.Code)
+ }
+ // Deliver the received response to retriever.
+ if deliverMsg != nil {
+ if err := h.backend.retriever.deliver(p, deliverMsg); err != nil {
+ p.responseErrors++
+ if p.responseErrors > maxResponseErrors {
+ return err
+ }
+ }
+ }
+ return nil
+}
+
+func (h *clientHandler) removePeer(id string) {
+ h.backend.peers.Unregister(id)
+}
+
+type peerConnection struct {
+ handler *clientHandler
+ peer *peer
+}
+
+func (pc *peerConnection) Head() (common.Hash, *big.Int) {
+ return pc.peer.HeadAndTd()
+}
+
+func (pc *peerConnection) RequestHeadersByHash(origin common.Hash, amount int, skip int, reverse bool) error {
+ rq := &distReq{
+ getCost: func(dp distPeer) uint64 {
+ peer := dp.(*peer)
+ return peer.GetRequestCost(GetBlockHeadersMsg, amount)
+ },
+ canSend: func(dp distPeer) bool {
+ return dp.(*peer) == pc.peer
+ },
+ request: func(dp distPeer) func() {
+ reqID := genReqID()
+ peer := dp.(*peer)
+ cost := peer.GetRequestCost(GetBlockHeadersMsg, amount)
+ peer.fcServer.QueuedRequest(reqID, cost)
+ return func() { peer.RequestHeadersByHash(reqID, cost, origin, amount, skip, reverse) }
+ },
+ }
+ _, ok := <-pc.handler.backend.reqDist.queue(rq)
+ if !ok {
+ return light.ErrNoPeers
+ }
+ return nil
+}
+
+func (pc *peerConnection) RequestHeadersByNumber(origin uint64, amount int, skip int, reverse bool) error {
+ rq := &distReq{
+ getCost: func(dp distPeer) uint64 {
+ peer := dp.(*peer)
+ return peer.GetRequestCost(GetBlockHeadersMsg, amount)
+ },
+ canSend: func(dp distPeer) bool {
+ return dp.(*peer) == pc.peer
+ },
+ request: func(dp distPeer) func() {
+ reqID := genReqID()
+ peer := dp.(*peer)
+ cost := peer.GetRequestCost(GetBlockHeadersMsg, amount)
+ peer.fcServer.QueuedRequest(reqID, cost)
+ return func() { peer.RequestHeadersByNumber(reqID, cost, origin, amount, skip, reverse) }
+ },
+ }
+ _, ok := <-pc.handler.backend.reqDist.queue(rq)
+ if !ok {
+ return light.ErrNoPeers
+ }
+ return nil
+}
+
+// downloaderPeerNotify implements peerSetNotify
+type downloaderPeerNotify clientHandler
+
+func (d *downloaderPeerNotify) registerPeer(p *peer) {
+ h := (*clientHandler)(d)
+ pc := &peerConnection{
+ handler: h,
+ peer: p,
+ }
+ h.downloader.RegisterLightPeer(p.id, ethVersion, pc)
+}
+
+func (d *downloaderPeerNotify) unregisterPeer(p *peer) {
+ h := (*clientHandler)(d)
+ h.downloader.UnregisterPeer(p.id)
+}
diff --git a/les/commons.go b/les/commons.go
index ef3c470e58..ad3c5aef3d 100644
--- a/les/commons.go
+++ b/les/commons.go
@@ -17,25 +17,56 @@
package les
import (
+ "fmt"
"math/big"
+ "sync"
"github.com/ethereum/go-ethereum/common"
"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/eth"
"github.com/ethereum/go-ethereum/ethdb"
"github.com/ethereum/go-ethereum/light"
"github.com/ethereum/go-ethereum/p2p"
+ "github.com/ethereum/go-ethereum/p2p/discv5"
"github.com/ethereum/go-ethereum/p2p/enode"
"github.com/ethereum/go-ethereum/params"
)
+func errResp(code errCode, format string, v ...interface{}) error {
+ return fmt.Errorf("%v - %v", code, fmt.Sprintf(format, v...))
+}
+
+func lesTopic(genesisHash common.Hash, protocolVersion uint) discv5.Topic {
+ var name string
+ switch protocolVersion {
+ case lpv2:
+ name = "LES2"
+ default:
+ panic(nil)
+ }
+ return discv5.Topic(name + "@" + common.Bytes2Hex(genesisHash.Bytes()[0:8]))
+}
+
+type chainReader interface {
+ CurrentHeader() *types.Header
+}
+
// lesCommons contains fields needed by both server and client.
type lesCommons struct {
+ genesis common.Hash
config *eth.Config
+ chainConfig *params.ChainConfig
iConfig *light.IndexerConfig
chainDb ethdb.Database
- protocolManager *ProtocolManager
+ peers *peerSet
+ chainReader chainReader
chtIndexer, bloomTrieIndexer *core.ChainIndexer
+ oracle *checkpointOracle
+
+ closeCh chan struct{}
+ wg sync.WaitGroup
}
// NodeInfo represents a short summary of the Ethereum sub-protocol metadata
@@ -50,7 +81,7 @@ type NodeInfo struct {
}
// makeProtocols creates protocol descriptors for the given LES versions.
-func (c *lesCommons) makeProtocols(versions []uint) []p2p.Protocol {
+func (c *lesCommons) makeProtocols(versions []uint, runPeer func(version uint, p *p2p.Peer, rw p2p.MsgReadWriter) error, peerInfo func(id enode.ID) interface{}) []p2p.Protocol {
protos := make([]p2p.Protocol, len(versions))
for i, version := range versions {
version := version
@@ -59,15 +90,10 @@ func (c *lesCommons) makeProtocols(versions []uint) []p2p.Protocol {
Version: version,
Length: ProtocolLengths[version],
NodeInfo: c.nodeInfo,
- Run: func(p *p2p.Peer, rw p2p.MsgReadWriter) error {
- return c.protocolManager.runPeer(version, p, rw)
- },
- PeerInfo: func(id enode.ID) interface{} {
- if p := c.protocolManager.peers.Peer(peerIdToString(id)); p != nil {
- return p.Info()
- }
- return nil
+ Run: func(peer *p2p.Peer, rw p2p.MsgReadWriter) error {
+ return runPeer(version, peer, rw)
},
+ PeerInfo: peerInfo,
}
}
return protos
@@ -75,22 +101,21 @@ func (c *lesCommons) makeProtocols(versions []uint) []p2p.Protocol {
// nodeInfo retrieves some protocol metadata about the running host node.
func (c *lesCommons) nodeInfo() interface{} {
- chain := c.protocolManager.blockchain
- head := chain.CurrentHeader()
+ head := c.chainReader.CurrentHeader()
hash := head.Hash()
return &NodeInfo{
Network: c.config.NetworkId,
- Difficulty: chain.GetTd(hash, head.Number.Uint64()),
- Genesis: chain.Genesis().Hash(),
- Config: chain.Config(),
- Head: chain.CurrentHeader().Hash(),
+ Difficulty: rawdb.ReadTd(c.chainDb, hash, head.Number.Uint64()),
+ Genesis: c.genesis,
+ Config: c.chainConfig,
+ Head: hash,
CHT: c.latestLocalCheckpoint(),
}
}
-// latestLocalCheckpoint finds the common stored section index and returns a set of
-// post-processed trie roots (CHT and BloomTrie) associated with
-// the appropriate section index and head hash as a local checkpoint package.
+// latestLocalCheckpoint finds the common stored section index and returns a set
+// of post-processed trie roots (CHT and BloomTrie) associated with the appropriate
+// section index and head hash as a local checkpoint package.
func (c *lesCommons) latestLocalCheckpoint() params.TrustedCheckpoint {
sections, _, _ := c.chtIndexer.Sections()
sections2, _, _ := c.bloomTrieIndexer.Sections()
@@ -102,15 +127,15 @@ func (c *lesCommons) latestLocalCheckpoint() params.TrustedCheckpoint {
// No checkpoint information can be provided.
return params.TrustedCheckpoint{}
}
- return c.getLocalCheckpoint(sections - 1)
+ return c.localCheckpoint(sections - 1)
}
-// getLocalCheckpoint returns a set of post-processed trie roots (CHT and BloomTrie)
+// localCheckpoint returns a set of post-processed trie roots (CHT and BloomTrie)
// associated with the appropriate head hash by specific section index.
//
// The returned checkpoint is only the checkpoint generated by the local indexers,
// not the stable checkpoint registered in the registrar contract.
-func (c *lesCommons) getLocalCheckpoint(index uint64) params.TrustedCheckpoint {
+func (c *lesCommons) localCheckpoint(index uint64) params.TrustedCheckpoint {
sectionHead := c.chtIndexer.SectionHead(index)
return params.TrustedCheckpoint{
SectionIndex: index,
diff --git a/les/costtracker.go b/les/costtracker.go
index d1bb172e40..d1f5b54ca5 100644
--- a/les/costtracker.go
+++ b/les/costtracker.go
@@ -81,7 +81,8 @@ var (
)
const (
- maxCostFactor = 2 // ratio of maximum and average cost estimates
+ maxCostFactor = 2 // ratio of maximum and average cost estimates
+ bufLimitRatio = 6000 // fixed bufLimit/MRR ratio
gfUsageThreshold = 0.5
gfUsageTC = time.Second
gfRaiseTC = time.Second * 200
@@ -127,6 +128,10 @@ type costTracker struct {
totalRechargeCh chan uint64
stats map[uint64][]uint64 // Used for testing purpose.
+
+ // TestHooks
+ testing bool // Disable real cost evaluation for testing purpose.
+ testCostList RequestCostList // Customized cost table for testing purpose.
}
// newCostTracker creates a cost tracker and loads the cost factor statistics from the database.
@@ -265,8 +270,9 @@ func (ct *costTracker) gfLoop() {
select {
case r := <-ct.reqInfoCh:
requestServedMeter.Mark(int64(r.servingTime))
- requestEstimatedMeter.Mark(int64(r.avgTimeCost / factor))
requestServedTimer.Update(time.Duration(r.servingTime))
+ requestEstimatedMeter.Mark(int64(r.avgTimeCost / factor))
+ requestEstimatedTimer.Update(time.Duration(r.avgTimeCost / factor))
relativeCostHistogram.Update(int64(r.avgTimeCost / factor / r.servingTime))
now := mclock.Now()
@@ -323,7 +329,6 @@ func (ct *costTracker) gfLoop() {
}
recentServedGauge.Update(int64(recentTime))
recentEstimatedGauge.Update(int64(recentAvg))
- totalRechargeGauge.Update(int64(totalRecharge))
case <-saveTicker.C:
saveCostFactor()
diff --git a/les/distributor.go b/les/distributor.go
index 9235adc03f..62abef47dc 100644
--- a/les/distributor.go
+++ b/les/distributor.go
@@ -28,14 +28,17 @@ import (
// suitable peers, obeying flow control rules and prioritizing them in creation
// order (even when a resend is necessary).
type requestDistributor struct {
- clock mclock.Clock
- reqQueue *list.List
- lastReqOrder uint64
- peers map[distPeer]struct{}
- peerLock sync.RWMutex
- stopChn, loopChn chan struct{}
- loopNextSent bool
- lock sync.Mutex
+ clock mclock.Clock
+ reqQueue *list.List
+ lastReqOrder uint64
+ peers map[distPeer]struct{}
+ peerLock sync.RWMutex
+ loopChn chan struct{}
+ loopNextSent bool
+ lock sync.Mutex
+
+ closeCh chan struct{}
+ wg sync.WaitGroup
}
// distPeer is an LES server peer interface for the request distributor.
@@ -66,20 +69,22 @@ type distReq struct {
sentChn chan distPeer
element *list.Element
waitForPeers mclock.AbsTime
+ enterQueue mclock.AbsTime
}
// newRequestDistributor creates a new request distributor
-func newRequestDistributor(peers *peerSet, stopChn chan struct{}, clock mclock.Clock) *requestDistributor {
+func newRequestDistributor(peers *peerSet, clock mclock.Clock) *requestDistributor {
d := &requestDistributor{
clock: clock,
reqQueue: list.New(),
loopChn: make(chan struct{}, 2),
- stopChn: stopChn,
+ closeCh: make(chan struct{}),
peers: make(map[distPeer]struct{}),
}
if peers != nil {
peers.notify(d)
}
+ d.wg.Add(1)
go d.loop()
return d
}
@@ -115,9 +120,10 @@ const waitForPeers = time.Second * 3
// main event loop
func (d *requestDistributor) loop() {
+ defer d.wg.Done()
for {
select {
- case <-d.stopChn:
+ case <-d.closeCh:
d.lock.Lock()
elem := d.reqQueue.Front()
for elem != nil {
@@ -140,6 +146,7 @@ func (d *requestDistributor) loop() {
send := req.request(peer)
if send != nil {
peer.queueSend(send)
+ requestSendDelay.Update(time.Duration(d.clock.Now() - req.enterQueue))
}
chn <- peer
close(chn)
@@ -249,6 +256,9 @@ func (d *requestDistributor) queue(r *distReq) chan distPeer {
r.reqOrder = d.lastReqOrder
r.waitForPeers = d.clock.Now() + mclock.AbsTime(waitForPeers)
}
+ // Assign the timestamp when the request is queued no matter it's
+ // a new one or re-queued one.
+ r.enterQueue = d.clock.Now()
back := d.reqQueue.Back()
if back == nil || r.reqOrder > back.Value.(*distReq).reqOrder {
@@ -294,3 +304,8 @@ func (d *requestDistributor) remove(r *distReq) {
r.element = nil
}
}
+
+func (d *requestDistributor) close() {
+ close(d.closeCh)
+ d.wg.Wait()
+}
diff --git a/les/distributor_test.go b/les/distributor_test.go
index d2247212cd..00d43e1d6b 100644
--- a/les/distributor_test.go
+++ b/les/distributor_test.go
@@ -121,7 +121,7 @@ func testRequestDistributor(t *testing.T, resend bool) {
stop := make(chan struct{})
defer close(stop)
- dist := newRequestDistributor(nil, stop, &mclock.System{})
+ dist := newRequestDistributor(nil, &mclock.System{})
var peers [testDistPeerCount]*testDistPeer
for i := range peers {
peers[i] = &testDistPeer{}
diff --git a/les/fetcher.go b/les/fetcher.go
index 76e4f076a7..df76c56d70 100644
--- a/les/fetcher.go
+++ b/les/fetcher.go
@@ -40,9 +40,8 @@ const (
// ODR system to ensure that we only request data related to a certain block from peers who have already processed
// and announced that block.
type lightFetcher struct {
- pm *ProtocolManager
- odr *LesOdr
- chain lightChain
+ handler *clientHandler
+ chain *light.LightChain
lock sync.Mutex // lock protects access to the fetcher's internal state variables except sent requests
maxConfirmedTd *big.Int
@@ -58,13 +57,9 @@ type lightFetcher struct {
requestTriggered bool
requestTrigger chan struct{}
lastTrustedHeader *types.Header
-}
-// lightChain extends the BlockChain interface by locking.
-type lightChain interface {
- BlockChain
- LockChain()
- UnlockChain()
+ closeCh chan struct{}
+ wg sync.WaitGroup
}
// fetcherPeerInfo holds fetcher-specific information about each active peer
@@ -114,32 +109,37 @@ type fetchResponse struct {
}
// newLightFetcher creates a new light fetcher
-func newLightFetcher(pm *ProtocolManager) *lightFetcher {
+func newLightFetcher(h *clientHandler) *lightFetcher {
f := &lightFetcher{
- pm: pm,
- chain: pm.blockchain.(*light.LightChain),
- odr: pm.odr,
+ handler: h,
+ chain: h.backend.blockchain,
peers: make(map[*peer]*fetcherPeerInfo),
deliverChn: make(chan fetchResponse, 100),
requested: make(map[uint64]fetchRequest),
timeoutChn: make(chan uint64),
requestTrigger: make(chan struct{}, 1),
syncDone: make(chan *peer),
+ closeCh: make(chan struct{}),
maxConfirmedTd: big.NewInt(0),
}
- pm.peers.notify(f)
+ h.backend.peers.notify(f)
- f.pm.wg.Add(1)
+ f.wg.Add(1)
go f.syncLoop()
return f
}
+func (f *lightFetcher) close() {
+ close(f.closeCh)
+ f.wg.Wait()
+}
+
// syncLoop is the main event loop of the light fetcher
func (f *lightFetcher) syncLoop() {
- defer f.pm.wg.Done()
+ defer f.wg.Done()
for {
select {
- case <-f.pm.quitSync:
+ case <-f.closeCh:
return
// request loop keeps running until no further requests are necessary or possible
case <-f.requestTrigger:
@@ -156,7 +156,7 @@ func (f *lightFetcher) syncLoop() {
f.lock.Unlock()
if rq != nil {
- if _, ok := <-f.pm.reqDist.queue(rq); ok {
+ if _, ok := <-f.handler.backend.reqDist.queue(rq); ok {
if syncing {
f.lock.Lock()
f.syncing = true
@@ -187,9 +187,9 @@ func (f *lightFetcher) syncLoop() {
}
f.reqMu.Unlock()
if ok {
- f.pm.serverPool.adjustResponseTime(req.peer.poolEntry, time.Duration(mclock.Now()-req.sent), true)
+ f.handler.backend.serverPool.adjustResponseTime(req.peer.poolEntry, time.Duration(mclock.Now()-req.sent), true)
req.peer.Log().Debug("Fetching data timed out hard")
- go f.pm.removePeer(req.peer.id)
+ go f.handler.removePeer(req.peer.id)
}
case resp := <-f.deliverChn:
f.reqMu.Lock()
@@ -202,12 +202,12 @@ func (f *lightFetcher) syncLoop() {
}
f.reqMu.Unlock()
if ok {
- f.pm.serverPool.adjustResponseTime(req.peer.poolEntry, time.Duration(mclock.Now()-req.sent), req.timeout)
+ f.handler.backend.serverPool.adjustResponseTime(req.peer.poolEntry, time.Duration(mclock.Now()-req.sent), req.timeout)
}
f.lock.Lock()
if !ok || !(f.syncing || f.processResponse(req, resp)) {
resp.peer.Log().Debug("Failed processing response")
- go f.pm.removePeer(resp.peer.id)
+ go f.handler.removePeer(resp.peer.id)
}
f.lock.Unlock()
case p := <-f.syncDone:
@@ -264,7 +264,7 @@ func (f *lightFetcher) announce(p *peer, head *announceData) {
if fp.lastAnnounced != nil && head.Td.Cmp(fp.lastAnnounced.td) <= 0 {
// announced tds should be strictly monotonic
p.Log().Debug("Received non-monotonic td", "current", head.Td, "previous", fp.lastAnnounced.td)
- go f.pm.removePeer(p.id)
+ go f.handler.removePeer(p.id)
return
}
@@ -297,7 +297,7 @@ func (f *lightFetcher) announce(p *peer, head *announceData) {
// if one of root's children is canonical, keep it, delete other branches and root itself
var newRoot *fetcherTreeNode
for i, nn := range fp.root.children {
- if rawdb.ReadCanonicalHash(f.pm.chainDb, nn.number) == nn.hash {
+ if rawdb.ReadCanonicalHash(f.handler.backend.chainDb, nn.number) == nn.hash {
fp.root.children = append(fp.root.children[:i], fp.root.children[i+1:]...)
nn.parent = nil
newRoot = nn
@@ -390,7 +390,7 @@ func (f *lightFetcher) peerHasBlock(p *peer, hash common.Hash, number uint64, ha
//
// when syncing, just check if it is part of the known chain, there is nothing better we
// can do since we do not know the most recent block hash yet
- return rawdb.ReadCanonicalHash(f.pm.chainDb, fp.root.number) == fp.root.hash && rawdb.ReadCanonicalHash(f.pm.chainDb, number) == hash
+ return rawdb.ReadCanonicalHash(f.handler.backend.chainDb, fp.root.number) == fp.root.hash && rawdb.ReadCanonicalHash(f.handler.backend.chainDb, number) == hash
}
// requestAmount calculates the amount of headers to be downloaded starting
@@ -453,8 +453,7 @@ func (f *lightFetcher) findBestRequest() (bestHash common.Hash, bestAmount uint6
if f.checkKnownNode(p, n) || n.requested {
continue
}
-
- //if ulc mode is disabled, isTrustedHash returns true
+ // if ulc mode is disabled, isTrustedHash returns true
amount := f.requestAmount(p, n)
if (bestTd == nil || n.td.Cmp(bestTd) > 0 || amount < bestAmount) && (f.isTrustedHash(hash) || f.maxConfirmedTd.Int64() == 0) {
bestHash = hash
@@ -470,7 +469,7 @@ func (f *lightFetcher) findBestRequest() (bestHash common.Hash, bestAmount uint6
// isTrustedHash checks if the block can be trusted by the minimum trusted fraction.
func (f *lightFetcher) isTrustedHash(hash common.Hash) bool {
// If ultra light cliet mode is disabled, trust all hashes
- if f.pm.ulc == nil {
+ if f.handler.ulc == nil {
return true
}
// Ultra light enabled, only trust after enough confirmations
@@ -480,7 +479,7 @@ func (f *lightFetcher) isTrustedHash(hash common.Hash) bool {
agreed++
}
}
- return 100*agreed/len(f.pm.ulc.keys) >= f.pm.ulc.fraction
+ return 100*agreed/len(f.handler.ulc.keys) >= f.handler.ulc.fraction
}
func (f *lightFetcher) newFetcherDistReqForSync(bestHash common.Hash) *distReq {
@@ -500,14 +499,14 @@ func (f *lightFetcher) newFetcherDistReqForSync(bestHash common.Hash) *distReq {
return fp != nil && fp.nodeByHash[bestHash] != nil
},
request: func(dp distPeer) func() {
- if f.pm.ulc != nil {
+ if f.handler.ulc != nil {
// Keep last trusted header before sync
f.setLastTrustedHeader(f.chain.CurrentHeader())
}
go func() {
p := dp.(*peer)
p.Log().Debug("Synchronisation started")
- f.pm.synchronise(p)
+ f.handler.synchronise(p)
f.syncDone <- p
}()
return nil
@@ -607,7 +606,7 @@ func (f *lightFetcher) newHeaders(headers []*types.Header, tds []*big.Int) {
for p, fp := range f.peers {
if !f.checkAnnouncedHeaders(fp, headers, tds) {
p.Log().Debug("Inconsistent announcement")
- go f.pm.removePeer(p.id)
+ go f.handler.removePeer(p.id)
}
if fp.confirmedTd != nil && (maxTd == nil || maxTd.Cmp(fp.confirmedTd) > 0) {
maxTd = fp.confirmedTd
@@ -705,7 +704,7 @@ func (f *lightFetcher) checkSyncedHeaders(p *peer) {
node = fp.lastAnnounced
td *big.Int
)
- if f.pm.ulc != nil {
+ if f.handler.ulc != nil {
// Roll back untrusted blocks
h, unapproved := f.lastTrustedTreeNode(p)
f.chain.Rollback(unapproved)
@@ -721,7 +720,7 @@ func (f *lightFetcher) checkSyncedHeaders(p *peer) {
// Now node is the latest downloaded/approved header after syncing
if node == nil {
p.Log().Debug("Synchronisation failed")
- go f.pm.removePeer(p.id)
+ go f.handler.removePeer(p.id)
return
}
header := f.chain.GetHeader(node.hash, node.number)
@@ -741,7 +740,7 @@ func (f *lightFetcher) lastTrustedTreeNode(p *peer) (*types.Header, []common.Has
if canonical.Number.Uint64() > f.lastTrustedHeader.Number.Uint64() {
canonical = f.chain.GetHeaderByNumber(f.lastTrustedHeader.Number.Uint64())
}
- commonAncestor := rawdb.FindCommonAncestor(f.pm.chainDb, canonical, f.lastTrustedHeader)
+ commonAncestor := rawdb.FindCommonAncestor(f.handler.backend.chainDb, canonical, f.lastTrustedHeader)
if commonAncestor == nil {
log.Error("Common ancestor of last trusted header and canonical header is nil", "canonical hash", canonical.Hash(), "trusted hash", f.lastTrustedHeader.Hash())
return current, unapprovedHashes
@@ -787,7 +786,7 @@ func (f *lightFetcher) checkKnownNode(p *peer, n *fetcherTreeNode) bool {
}
if !f.checkAnnouncedHeaders(fp, []*types.Header{header}, []*big.Int{td}) {
p.Log().Debug("Inconsistent announcement")
- go f.pm.removePeer(p.id)
+ go f.handler.removePeer(p.id)
}
if fp.confirmedTd != nil {
f.updateMaxConfirmedTd(fp.confirmedTd)
@@ -880,12 +879,12 @@ func (f *lightFetcher) checkUpdateStats(p *peer, newEntry *updateStatsEntry) {
fp.firstUpdateStats = newEntry
}
for fp.firstUpdateStats != nil && fp.firstUpdateStats.time <= now-mclock.AbsTime(blockDelayTimeout) {
- f.pm.serverPool.adjustBlockDelay(p.poolEntry, blockDelayTimeout)
+ f.handler.backend.serverPool.adjustBlockDelay(p.poolEntry, blockDelayTimeout)
fp.firstUpdateStats = fp.firstUpdateStats.next
}
if fp.confirmedTd != nil {
for fp.firstUpdateStats != nil && fp.firstUpdateStats.td.Cmp(fp.confirmedTd) <= 0 {
- f.pm.serverPool.adjustBlockDelay(p.poolEntry, time.Duration(now-fp.firstUpdateStats.time))
+ f.handler.backend.serverPool.adjustBlockDelay(p.poolEntry, time.Duration(now-fp.firstUpdateStats.time))
fp.firstUpdateStats = fp.firstUpdateStats.next
}
}
diff --git a/les/fetcher_test.go b/les/fetcher_test.go
deleted file mode 100644
index c6faabd66d..0000000000
--- a/les/fetcher_test.go
+++ /dev/null
@@ -1,168 +0,0 @@
-// Copyright 2019 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"
-
- "net"
-
- "github.com/ethereum/go-ethereum/common"
- "github.com/ethereum/go-ethereum/core/types"
- "github.com/ethereum/go-ethereum/crypto"
- "github.com/ethereum/go-ethereum/p2p"
- "github.com/ethereum/go-ethereum/p2p/enode"
-)
-
-func TestFetcherULCPeerSelector(t *testing.T) {
- id1 := newNodeID(t).ID()
- id2 := newNodeID(t).ID()
- id3 := newNodeID(t).ID()
- id4 := newNodeID(t).ID()
-
- ftn1 := &fetcherTreeNode{
- hash: common.HexToHash("1"),
- td: big.NewInt(1),
- }
- ftn2 := &fetcherTreeNode{
- hash: common.HexToHash("2"),
- td: big.NewInt(2),
- parent: ftn1,
- }
- ftn3 := &fetcherTreeNode{
- hash: common.HexToHash("3"),
- td: big.NewInt(3),
- parent: ftn2,
- }
- lf := lightFetcher{
- pm: &ProtocolManager{
- ulc: &ulc{
- keys: map[string]bool{
- id1.String(): true,
- id2.String(): true,
- id3.String(): true,
- id4.String(): true,
- },
- fraction: 70,
- },
- },
- maxConfirmedTd: ftn1.td,
-
- peers: map[*peer]*fetcherPeerInfo{
- {
- id: "peer1",
- Peer: p2p.NewPeer(id1, "peer1", []p2p.Cap{}),
- trusted: true,
- }: {
- nodeByHash: map[common.Hash]*fetcherTreeNode{
- ftn1.hash: ftn1,
- ftn2.hash: ftn2,
- },
- },
- {
- Peer: p2p.NewPeer(id2, "peer2", []p2p.Cap{}),
- id: "peer2",
- trusted: true,
- }: {
- nodeByHash: map[common.Hash]*fetcherTreeNode{
- ftn1.hash: ftn1,
- ftn2.hash: ftn2,
- },
- },
- {
- id: "peer3",
- Peer: p2p.NewPeer(id3, "peer3", []p2p.Cap{}),
- trusted: true,
- }: {
- nodeByHash: map[common.Hash]*fetcherTreeNode{
- ftn1.hash: ftn1,
- ftn2.hash: ftn2,
- ftn3.hash: ftn3,
- },
- },
- {
- id: "peer4",
- Peer: p2p.NewPeer(id4, "peer4", []p2p.Cap{}),
- trusted: true,
- }: {
- nodeByHash: map[common.Hash]*fetcherTreeNode{
- ftn1.hash: ftn1,
- },
- },
- },
- chain: &lightChainStub{
- tds: map[common.Hash]*big.Int{},
- headers: map[common.Hash]*types.Header{
- ftn1.hash: {},
- ftn2.hash: {},
- ftn3.hash: {},
- },
- },
- }
- bestHash, bestAmount, bestTD, sync := lf.findBestRequest()
-
- if bestTD == nil {
- t.Fatal("Empty result")
- }
-
- if bestTD.Cmp(ftn2.td) != 0 {
- t.Fatal("bad td", bestTD)
- }
- if bestHash != ftn2.hash {
- t.Fatal("bad hash", bestTD)
- }
-
- _, _ = bestAmount, sync
-}
-
-type lightChainStub struct {
- BlockChain
- tds map[common.Hash]*big.Int
- headers map[common.Hash]*types.Header
- insertHeaderChainAssertFunc func(chain []*types.Header, checkFreq int) (int, error)
-}
-
-func (l *lightChainStub) GetHeader(hash common.Hash, number uint64) *types.Header {
- if h, ok := l.headers[hash]; ok {
- return h
- }
-
- return nil
-}
-
-func (l *lightChainStub) LockChain() {}
-func (l *lightChainStub) UnlockChain() {}
-
-func (l *lightChainStub) GetTd(hash common.Hash, number uint64) *big.Int {
- if td, ok := l.tds[hash]; ok {
- return td
- }
- return nil
-}
-
-func (l *lightChainStub) InsertHeaderChain(chain []*types.Header, checkFreq int) (int, error) {
- return l.insertHeaderChainAssertFunc(chain, checkFreq)
-}
-
-func newNodeID(t *testing.T) *enode.Node {
- key, err := crypto.GenerateKey()
- if err != nil {
- t.Fatal("generate key err:", err)
- }
- return enode.NewV4(&key.PublicKey, net.IP{}, 35000, 35000)
-}
diff --git a/les/handler.go b/les/handler.go
deleted file mode 100644
index 807065e55d..0000000000
--- a/les/handler.go
+++ /dev/null
@@ -1,1293 +0,0 @@
-// Copyright 2016 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 (
- "encoding/binary"
- "encoding/json"
- "errors"
- "fmt"
- "math/big"
- "sync"
- "sync/atomic"
- "time"
-
- "github.com/ethereum/go-ethereum/common"
- "github.com/ethereum/go-ethereum/common/mclock"
- "github.com/ethereum/go-ethereum/core"
- "github.com/ethereum/go-ethereum/core/rawdb"
- "github.com/ethereum/go-ethereum/core/state"
- "github.com/ethereum/go-ethereum/core/types"
- "github.com/ethereum/go-ethereum/eth/downloader"
- "github.com/ethereum/go-ethereum/ethdb"
- "github.com/ethereum/go-ethereum/event"
- "github.com/ethereum/go-ethereum/light"
- "github.com/ethereum/go-ethereum/log"
- "github.com/ethereum/go-ethereum/p2p"
- "github.com/ethereum/go-ethereum/p2p/discv5"
- "github.com/ethereum/go-ethereum/params"
- "github.com/ethereum/go-ethereum/rlp"
- "github.com/ethereum/go-ethereum/trie"
-)
-
-var errTooManyInvalidRequest = errors.New("too many invalid requests made")
-
-const (
- softResponseLimit = 2 * 1024 * 1024 // Target maximum size of returned blocks, headers or node data.
- estHeaderRlpSize = 500 // Approximate size of an RLP encoded block header
-
- ethVersion = 63 // equivalent eth version for the downloader
-
- MaxHeaderFetch = 192 // Amount of block headers to be fetched per retrieval request
- MaxBodyFetch = 32 // Amount of block bodies to be fetched per retrieval request
- MaxReceiptFetch = 128 // Amount of transaction receipts to allow fetching per request
- MaxCodeFetch = 64 // Amount of contract codes to allow fetching per request
- MaxProofsFetch = 64 // Amount of merkle proofs to be fetched per retrieval request
- MaxHelperTrieProofsFetch = 64 // Amount of merkle proofs to be fetched per retrieval request
- MaxTxSend = 64 // Amount of transactions to be send per request
- MaxTxStatus = 256 // Amount of transactions to queried per request
-
- disableClientRemovePeer = false
-)
-
-func errResp(code errCode, format string, v ...interface{}) error {
- return fmt.Errorf("%v - %v", code, fmt.Sprintf(format, v...))
-}
-
-type BlockChain interface {
- Config() *params.ChainConfig
- HasHeader(hash common.Hash, number uint64) bool
- GetHeader(hash common.Hash, number uint64) *types.Header
- GetHeaderByHash(hash common.Hash) *types.Header
- CurrentHeader() *types.Header
- GetTd(hash common.Hash, number uint64) *big.Int
- StateCache() state.Database
- InsertHeaderChain(chain []*types.Header, checkFreq int) (int, error)
- Rollback(chain []common.Hash)
- GetHeaderByNumber(number uint64) *types.Header
- GetAncestor(hash common.Hash, number, ancestor uint64, maxNonCanonical *uint64) (common.Hash, uint64)
- Genesis() *types.Block
- SubscribeChainHeadEvent(ch chan<- core.ChainHeadEvent) event.Subscription
-}
-
-type txPool interface {
- AddRemotes(txs []*types.Transaction) []error
- AddRemotesSync(txs []*types.Transaction) []error
- Status(hashes []common.Hash) []core.TxStatus
-}
-
-type ProtocolManager struct {
- // Configs
- chainConfig *params.ChainConfig
- iConfig *light.IndexerConfig
-
- client bool // The indicator whether the node is light client
- maxPeers int // The maximum number peers allowed to connect.
- networkId uint64 // The identity of network.
-
- txpool txPool
- txrelay *lesTxRelay
- blockchain BlockChain
- chainDb ethdb.Database
- odr *LesOdr
- server *LesServer
- serverPool *serverPool
- lesTopic discv5.Topic
- reqDist *requestDistributor
- retriever *retrieveManager
- servingQueue *servingQueue
- downloader *downloader.Downloader
- fetcher *lightFetcher
- ulc *ulc
- peers *peerSet
- checkpoint *params.TrustedCheckpoint
- reg *checkpointOracle // If reg == nil, it means the checkpoint registrar is not activated
-
- // channels for fetcher, syncer, txsyncLoop
- newPeerCh chan *peer
- quitSync chan struct{}
- noMorePeers chan struct{}
-
- wg *sync.WaitGroup
- eventMux *event.TypeMux
-
- // Callbacks
- synced func() bool
-
- // Testing fields
- addTxsSync bool
-}
-
-// NewProtocolManager returns a new ethereum sub protocol manager. The Ethereum sub protocol manages peers capable
-// with the ethereum network.
-func NewProtocolManager(chainConfig *params.ChainConfig, checkpoint *params.TrustedCheckpoint, indexerConfig *light.IndexerConfig, ulcServers []string, ulcFraction int, client bool, networkId uint64, mux *event.TypeMux, peers *peerSet, blockchain BlockChain, txpool txPool, chainDb ethdb.Database, odr *LesOdr, serverPool *serverPool, registrar *checkpointOracle, quitSync chan struct{}, wg *sync.WaitGroup, synced func() bool) (*ProtocolManager, error) {
- // Create the protocol manager with the base fields
- manager := &ProtocolManager{
- client: client,
- eventMux: mux,
- blockchain: blockchain,
- chainConfig: chainConfig,
- iConfig: indexerConfig,
- chainDb: chainDb,
- odr: odr,
- networkId: networkId,
- txpool: txpool,
- serverPool: serverPool,
- reg: registrar,
- peers: peers,
- newPeerCh: make(chan *peer),
- quitSync: quitSync,
- wg: wg,
- noMorePeers: make(chan struct{}),
- checkpoint: checkpoint,
- synced: synced,
- }
- if odr != nil {
- manager.retriever = odr.retriever
- manager.reqDist = odr.retriever.dist
- }
-
- if ulcServers != nil {
- ulc, err := newULC(ulcServers, ulcFraction)
- if err != nil {
- log.Warn("Failed to initialize ultra light client", "err", err)
- } else {
- manager.ulc = ulc
- }
- }
- removePeer := manager.removePeer
- if disableClientRemovePeer {
- removePeer = func(id string) {}
- }
- if client {
- var checkpointNumber uint64
- if checkpoint != nil {
- checkpointNumber = (checkpoint.SectionIndex+1)*params.CHTFrequency - 1
- }
- manager.downloader = downloader.New(checkpointNumber, chainDb, nil, manager.eventMux, nil, blockchain, removePeer)
- manager.peers.notify((*downloaderPeerNotify)(manager))
- manager.fetcher = newLightFetcher(manager)
- }
- return manager, nil
-}
-
-// removePeer initiates disconnection from a peer by removing it from the peer set
-func (pm *ProtocolManager) removePeer(id string) {
- pm.peers.Unregister(id)
-}
-
-func (pm *ProtocolManager) Start(maxPeers int) {
- pm.maxPeers = maxPeers
- if pm.client {
- go pm.syncer()
- } else {
- go func() {
- for range pm.newPeerCh {
- }
- }()
- }
-}
-
-func (pm *ProtocolManager) Stop() {
- // Showing a log message. During download / process this could actually
- // take between 5 to 10 seconds and therefor feedback is required.
- log.Info("Stopping light Ethereum protocol")
-
- // Quit the sync loop.
- // After this send has completed, no new peers will be accepted.
- pm.noMorePeers <- struct{}{}
-
- close(pm.quitSync) // quits syncer, fetcher
-
- if pm.servingQueue != nil {
- pm.servingQueue.stop()
- }
-
- // Disconnect existing sessions.
- // This also closes the gate for any new registrations on the peer set.
- // sessions which are already established but not added to pm.peers yet
- // will exit when they try to register.
- pm.peers.Close()
-
- // Wait for any process action
- pm.wg.Wait()
-
- log.Info("Light Ethereum protocol stopped")
-}
-
-// runPeer is the p2p protocol run function for the given version.
-func (pm *ProtocolManager) runPeer(version uint, p *p2p.Peer, rw p2p.MsgReadWriter) error {
- var entry *poolEntry
- peer := pm.newPeer(int(version), pm.networkId, p, rw)
- if pm.serverPool != nil {
- entry = pm.serverPool.connect(peer, peer.Node())
- }
- peer.poolEntry = entry
- select {
- case pm.newPeerCh <- peer:
- pm.wg.Add(1)
- defer pm.wg.Done()
- err := pm.handle(peer)
- if entry != nil {
- pm.serverPool.disconnect(entry)
- }
- return err
- case <-pm.quitSync:
- if entry != nil {
- pm.serverPool.disconnect(entry)
- }
- return p2p.DiscQuitting
- }
-}
-
-func (pm *ProtocolManager) newPeer(pv int, nv uint64, p *p2p.Peer, rw p2p.MsgReadWriter) *peer {
- var trusted bool
- if pm.ulc != nil {
- trusted = pm.ulc.trusted(p.ID())
- }
- return newPeer(pv, nv, trusted, p, newMeteredMsgWriter(rw))
-}
-
-// handle is the callback invoked to manage the life cycle of a les peer. When
-// this function terminates, the peer is disconnected.
-func (pm *ProtocolManager) handle(p *peer) error {
- // Ignore maxPeers if this is a trusted peer
- // In server mode we try to check into the client pool after handshake
- if pm.client && pm.peers.Len() >= pm.maxPeers && !p.Peer.Info().Network.Trusted {
- clientRejectedMeter.Mark(1)
- return p2p.DiscTooManyPeers
- }
- // Reject light clients if server is not synced.
- if !pm.client && !pm.synced() {
- clientRejectedMeter.Mark(1)
- return p2p.DiscRequested
- }
- p.Log().Debug("Light Ethereum peer connected", "name", p.Name())
-
- // Execute the LES handshake
- var (
- genesis = pm.blockchain.Genesis()
- head = pm.blockchain.CurrentHeader()
- hash = head.Hash()
- number = head.Number.Uint64()
- td = pm.blockchain.GetTd(hash, number)
- )
- if err := p.Handshake(td, hash, number, genesis.Hash(), pm.server); err != nil {
- p.Log().Debug("Light Ethereum handshake failed", "err", err)
- clientErrorMeter.Mark(1)
- return err
- }
- if p.fcClient != nil {
- defer p.fcClient.Disconnect()
- }
-
- if rw, ok := p.rw.(*meteredMsgReadWriter); ok {
- rw.Init(p.version)
- }
-
- // Register the peer locally
- if err := pm.peers.Register(p); err != nil {
- clientErrorMeter.Mark(1)
- p.Log().Error("Light Ethereum peer registration failed", "err", err)
- return err
- }
- if !pm.client && p.balanceTracker == nil {
- // add dummy balance tracker for tests
- p.balanceTracker = &balanceTracker{}
- p.balanceTracker.init(&mclock.System{}, 1)
- }
- connectedAt := time.Now()
- defer func() {
- p.balanceTracker = nil
- pm.removePeer(p.id)
- connectionTimer.UpdateSince(connectedAt)
- }()
-
- // Register the peer in the downloader. If the downloader considers it banned, we disconnect
- if pm.client {
- p.lock.Lock()
- head := p.headInfo
- p.lock.Unlock()
- if pm.fetcher != nil {
- pm.fetcher.announce(p, head)
- }
-
- if p.poolEntry != nil {
- pm.serverPool.registered(p.poolEntry)
- }
- }
- // main loop. handle incoming messages.
- for {
- if err := pm.handleMsg(p); err != nil {
- p.Log().Debug("Light Ethereum message handling failed", "err", err)
- if p.fcServer != nil {
- p.fcServer.DumpLogs()
- }
- return err
- }
- }
-}
-
-// handleMsg is invoked whenever an inbound message is received from a remote
-// peer. The remote connection is torn down upon returning any error.
-func (pm *ProtocolManager) handleMsg(p *peer) error {
- select {
- case err := <-p.errCh:
- return err
- default:
- }
- // Read the next message from the remote peer, and ensure it's fully consumed
- msg, err := p.rw.ReadMsg()
- if err != nil {
- return err
- }
- p.Log().Trace("Light Ethereum message arrived", "code", msg.Code, "bytes", msg.Size)
-
- p.responseCount++
- responseCount := p.responseCount
- var (
- maxCost uint64
- task *servingTask
- )
-
- accept := func(reqID, reqCnt, maxCnt uint64) bool {
- inSizeCost := func() uint64 {
- if pm.server.costTracker != nil {
- return pm.server.costTracker.realCost(0, msg.Size, 0)
- }
- return 0
- }
- if p.isFrozen() || reqCnt == 0 || p.fcClient == nil || reqCnt > maxCnt {
- p.fcClient.OneTimeCost(inSizeCost())
- return false
- }
- maxCost = p.fcCosts.getMaxCost(msg.Code, reqCnt)
- gf := float64(1)
- if pm.server.costTracker != nil {
- gf = pm.server.costTracker.globalFactor()
- if gf < 0.001 {
- p.Log().Error("Invalid global cost factor", "globalFactor", gf)
- gf = 1
- }
- }
- maxTime := uint64(float64(maxCost) / gf)
-
- if accepted, bufShort, servingPriority := p.fcClient.AcceptRequest(reqID, responseCount, maxCost); !accepted {
- p.freezeClient()
- p.Log().Warn("Request came too early", "remaining", common.PrettyDuration(time.Duration(bufShort*1000000/p.fcParams.MinRecharge)))
- p.fcClient.OneTimeCost(inSizeCost())
- return false
- } else {
- task = pm.servingQueue.newTask(p, maxTime, servingPriority)
- }
- if task.start() {
- return true
- }
- p.fcClient.RequestProcessed(reqID, responseCount, maxCost, inSizeCost())
- return false
- }
-
- if msg.Size > ProtocolMaxMsgSize {
- return errResp(ErrMsgTooLarge, "%v > %v", msg.Size, ProtocolMaxMsgSize)
- }
- defer msg.Discard()
-
- var deliverMsg *Msg
- balanceTracker := p.balanceTracker
-
- sendResponse := func(reqID, amount uint64, reply *reply, servingTime uint64) {
- p.responseLock.Lock()
- defer p.responseLock.Unlock()
-
- if p.isFrozen() {
- amount = 0
- reply = nil
- }
- var replySize uint32
- if reply != nil {
- replySize = reply.size()
- }
- var realCost uint64
- if pm.server.costTracker != nil {
- realCost = pm.server.costTracker.realCost(servingTime, msg.Size, replySize)
- if amount != 0 {
- pm.server.costTracker.updateStats(msg.Code, amount, servingTime, realCost)
- balanceTracker.requestCost(realCost)
- }
- } else {
- realCost = maxCost
- }
- bv := p.fcClient.RequestProcessed(reqID, responseCount, maxCost, realCost)
- if reply != nil {
- p.queueSend(func() {
- if err := reply.send(bv); err != nil {
- select {
- case p.errCh <- err:
- default:
- }
- }
- })
- }
- }
-
- // Handle the message depending on its contents
- switch msg.Code {
- case StatusMsg:
- p.Log().Trace("Received status message")
- // Status messages should never arrive after the handshake
- return errResp(ErrExtraStatusMsg, "uncontrolled status message")
-
- // Block header query, collect the requested headers and reply
- case AnnounceMsg:
- p.Log().Trace("Received announce message")
- var req announceData
- if err := msg.Decode(&req); err != nil {
- return errResp(ErrDecode, "%v: %v", msg, err)
- }
- if err := req.sanityCheck(); err != nil {
- return err
- }
- update, size := req.Update.decode()
- if p.rejectUpdate(size) {
- return errResp(ErrRequestRejected, "")
- }
- p.updateFlowControl(update)
-
- if req.Hash != (common.Hash{}) {
- if p.announceType == announceTypeNone {
- return errResp(ErrUnexpectedResponse, "")
- }
- if p.announceType == announceTypeSigned {
- if err := req.checkSignature(p.ID(), update); err != nil {
- p.Log().Trace("Invalid announcement signature", "err", err)
- return err
- }
- p.Log().Trace("Valid announcement signature")
- }
-
- p.Log().Trace("Announce message content", "number", req.Number, "hash", req.Hash, "td", req.Td, "reorg", req.ReorgDepth)
- if pm.fetcher != nil {
- pm.fetcher.announce(p, &req)
- }
- }
-
- case GetBlockHeadersMsg:
- p.Log().Trace("Received block header request")
- // Decode the complex header query
- var req struct {
- ReqID uint64
- Query getBlockHeadersData
- }
- if err := msg.Decode(&req); err != nil {
- return errResp(ErrDecode, "%v: %v", msg, err)
- }
-
- query := req.Query
- if accept(req.ReqID, query.Amount, MaxHeaderFetch) {
- go func() {
- hashMode := query.Origin.Hash != (common.Hash{})
- first := true
- maxNonCanonical := uint64(100)
-
- // Gather headers until the fetch or network limits is reached
- var (
- bytes common.StorageSize
- headers []*types.Header
- unknown bool
- )
- for !unknown && len(headers) < int(query.Amount) && bytes < softResponseLimit {
- if !first && !task.waitOrStop() {
- sendResponse(req.ReqID, 0, nil, task.servingTime)
- return
- }
- // Retrieve the next header satisfying the query
- var origin *types.Header
- if hashMode {
- if first {
- origin = pm.blockchain.GetHeaderByHash(query.Origin.Hash)
- if origin != nil {
- query.Origin.Number = origin.Number.Uint64()
- }
- } else {
- origin = pm.blockchain.GetHeader(query.Origin.Hash, query.Origin.Number)
- }
- } else {
- origin = pm.blockchain.GetHeaderByNumber(query.Origin.Number)
- }
- if origin == nil {
- atomic.AddUint32(&p.invalidCount, 1)
- break
- }
- headers = append(headers, origin)
- bytes += estHeaderRlpSize
-
- // Advance to the next header of the query
- switch {
- case hashMode && query.Reverse:
- // Hash based traversal towards the genesis block
- ancestor := query.Skip + 1
- if ancestor == 0 {
- unknown = true
- } else {
- query.Origin.Hash, query.Origin.Number = pm.blockchain.GetAncestor(query.Origin.Hash, query.Origin.Number, ancestor, &maxNonCanonical)
- unknown = (query.Origin.Hash == common.Hash{})
- }
- case hashMode && !query.Reverse:
- // Hash based traversal towards the leaf block
- var (
- current = origin.Number.Uint64()
- next = current + query.Skip + 1
- )
- if next <= current {
- infos, _ := json.MarshalIndent(p.Peer.Info(), "", " ")
- p.Log().Warn("GetBlockHeaders skip overflow attack", "current", current, "skip", query.Skip, "next", next, "attacker", infos)
- unknown = true
- } else {
- if header := pm.blockchain.GetHeaderByNumber(next); header != nil {
- nextHash := header.Hash()
- expOldHash, _ := pm.blockchain.GetAncestor(nextHash, next, query.Skip+1, &maxNonCanonical)
- if expOldHash == query.Origin.Hash {
- query.Origin.Hash, query.Origin.Number = nextHash, next
- } else {
- unknown = true
- }
- } else {
- unknown = true
- }
- }
- case query.Reverse:
- // Number based traversal towards the genesis block
- if query.Origin.Number >= query.Skip+1 {
- query.Origin.Number -= query.Skip + 1
- } else {
- unknown = true
- }
- case !query.Reverse:
- // Number based traversal towards the leaf block
- query.Origin.Number += query.Skip + 1
- }
- first = false
- }
- sendResponse(req.ReqID, query.Amount, p.ReplyBlockHeaders(req.ReqID, headers), task.done())
- }()
- }
-
- case BlockHeadersMsg:
- if pm.downloader == nil {
- return errResp(ErrUnexpectedResponse, "")
- }
-
- p.Log().Trace("Received block header response message")
- // A batch of headers arrived to one of our previous requests
- var resp struct {
- ReqID, BV uint64
- Headers []*types.Header
- }
- if err := msg.Decode(&resp); err != nil {
- return errResp(ErrDecode, "msg %v: %v", msg, err)
- }
- p.fcServer.ReceivedReply(resp.ReqID, resp.BV)
- if pm.fetcher != nil && pm.fetcher.requestedID(resp.ReqID) {
- pm.fetcher.deliverHeaders(p, resp.ReqID, resp.Headers)
- } else {
- err := pm.downloader.DeliverHeaders(p.id, resp.Headers)
- if err != nil {
- log.Debug(fmt.Sprint(err))
- }
- }
-
- case GetBlockBodiesMsg:
- p.Log().Trace("Received block bodies request")
- // Decode the retrieval message
- var req struct {
- ReqID uint64
- Hashes []common.Hash
- }
- if err := msg.Decode(&req); err != nil {
- return errResp(ErrDecode, "msg %v: %v", msg, err)
- }
- // Gather blocks until the fetch or network limits is reached
- var (
- bytes int
- bodies []rlp.RawValue
- )
- reqCnt := len(req.Hashes)
- if accept(req.ReqID, uint64(reqCnt), MaxBodyFetch) {
- go func() {
- for i, hash := range req.Hashes {
- if i != 0 && !task.waitOrStop() {
- sendResponse(req.ReqID, 0, nil, task.servingTime)
- return
- }
- // Retrieve the requested block body, stopping if enough was found
- if bytes >= softResponseLimit {
- break
- }
- number := rawdb.ReadHeaderNumber(pm.chainDb, hash)
- if number == nil {
- atomic.AddUint32(&p.invalidCount, 1)
- continue
- }
- if data := rawdb.ReadBodyRLP(pm.chainDb, hash, *number); len(data) != 0 {
- bodies = append(bodies, data)
- bytes += len(data)
- }
- }
- sendResponse(req.ReqID, uint64(reqCnt), p.ReplyBlockBodiesRLP(req.ReqID, bodies), task.done())
- }()
- }
-
- case BlockBodiesMsg:
- if pm.odr == nil {
- return errResp(ErrUnexpectedResponse, "")
- }
-
- p.Log().Trace("Received block bodies response")
- // A batch of block bodies arrived to one of our previous requests
- var resp struct {
- ReqID, BV uint64
- Data []*types.Body
- }
- if err := msg.Decode(&resp); err != nil {
- return errResp(ErrDecode, "msg %v: %v", msg, err)
- }
- p.fcServer.ReceivedReply(resp.ReqID, resp.BV)
- deliverMsg = &Msg{
- MsgType: MsgBlockBodies,
- ReqID: resp.ReqID,
- Obj: resp.Data,
- }
-
- case GetCodeMsg:
- p.Log().Trace("Received code request")
- // Decode the retrieval message
- var req struct {
- ReqID uint64
- Reqs []CodeReq
- }
- if err := msg.Decode(&req); err != nil {
- return errResp(ErrDecode, "msg %v: %v", msg, err)
- }
- // Gather state data until the fetch or network limits is reached
- var (
- bytes int
- data [][]byte
- )
- reqCnt := len(req.Reqs)
- if accept(req.ReqID, uint64(reqCnt), MaxCodeFetch) {
- go func() {
- for i, request := range req.Reqs {
- if i != 0 && !task.waitOrStop() {
- sendResponse(req.ReqID, 0, nil, task.servingTime)
- return
- }
- // Look up the root hash belonging to the request
- number := rawdb.ReadHeaderNumber(pm.chainDb, request.BHash)
- if number == nil {
- p.Log().Warn("Failed to retrieve block num for code", "hash", request.BHash)
- atomic.AddUint32(&p.invalidCount, 1)
- continue
- }
- header := rawdb.ReadHeader(pm.chainDb, request.BHash, *number)
- if header == nil {
- p.Log().Warn("Failed to retrieve header for code", "block", *number, "hash", request.BHash)
- continue
- }
- // Refuse to search stale state data in the database since looking for
- // a non-exist key is kind of expensive.
- local := pm.blockchain.CurrentHeader().Number.Uint64()
- if !pm.server.archiveMode && header.Number.Uint64()+core.TriesInMemory <= local {
- p.Log().Debug("Reject stale code request", "number", header.Number.Uint64(), "head", local)
- atomic.AddUint32(&p.invalidCount, 1)
- continue
- }
- triedb := pm.blockchain.StateCache().TrieDB()
-
- account, err := pm.getAccount(triedb, header.Root, common.BytesToHash(request.AccKey))
- if err != nil {
- p.Log().Warn("Failed to retrieve account for code", "block", header.Number, "hash", header.Hash(), "account", common.BytesToHash(request.AccKey), "err", err)
- atomic.AddUint32(&p.invalidCount, 1)
- continue
- }
- code, err := triedb.Node(common.BytesToHash(account.CodeHash))
- if err != nil {
- p.Log().Warn("Failed to retrieve account code", "block", header.Number, "hash", header.Hash(), "account", common.BytesToHash(request.AccKey), "codehash", common.BytesToHash(account.CodeHash), "err", err)
- continue
- }
- // Accumulate the code and abort if enough data was retrieved
- data = append(data, code)
- if bytes += len(code); bytes >= softResponseLimit {
- break
- }
- }
- sendResponse(req.ReqID, uint64(reqCnt), p.ReplyCode(req.ReqID, data), task.done())
- }()
- }
-
- case CodeMsg:
- if pm.odr == nil {
- return errResp(ErrUnexpectedResponse, "")
- }
-
- p.Log().Trace("Received code response")
- // A batch of node state data arrived to one of our previous requests
- var resp struct {
- ReqID, BV uint64
- Data [][]byte
- }
- if err := msg.Decode(&resp); err != nil {
- return errResp(ErrDecode, "msg %v: %v", msg, err)
- }
- p.fcServer.ReceivedReply(resp.ReqID, resp.BV)
- deliverMsg = &Msg{
- MsgType: MsgCode,
- ReqID: resp.ReqID,
- Obj: resp.Data,
- }
-
- case GetReceiptsMsg:
- p.Log().Trace("Received receipts request")
- // Decode the retrieval message
- var req struct {
- ReqID uint64
- Hashes []common.Hash
- }
- if err := msg.Decode(&req); err != nil {
- return errResp(ErrDecode, "msg %v: %v", msg, err)
- }
- // Gather state data until the fetch or network limits is reached
- var (
- bytes int
- receipts []rlp.RawValue
- )
- reqCnt := len(req.Hashes)
- if accept(req.ReqID, uint64(reqCnt), MaxReceiptFetch) {
- go func() {
- for i, hash := range req.Hashes {
- if i != 0 && !task.waitOrStop() {
- sendResponse(req.ReqID, 0, nil, task.servingTime)
- return
- }
- if bytes >= softResponseLimit {
- break
- }
- // Retrieve the requested block's receipts, skipping if unknown to us
- var results types.Receipts
- number := rawdb.ReadHeaderNumber(pm.chainDb, hash)
- if number == nil {
- atomic.AddUint32(&p.invalidCount, 1)
- continue
- }
- results = rawdb.ReadRawReceipts(pm.chainDb, hash, *number)
- if results == nil {
- if header := pm.blockchain.GetHeaderByHash(hash); header == nil || header.ReceiptHash != types.EmptyRootHash {
- continue
- }
- }
- // If known, encode and queue for response packet
- if encoded, err := rlp.EncodeToBytes(results); err != nil {
- log.Error("Failed to encode receipt", "err", err)
- } else {
- receipts = append(receipts, encoded)
- bytes += len(encoded)
- }
- }
- sendResponse(req.ReqID, uint64(reqCnt), p.ReplyReceiptsRLP(req.ReqID, receipts), task.done())
- }()
- }
-
- case ReceiptsMsg:
- if pm.odr == nil {
- return errResp(ErrUnexpectedResponse, "")
- }
-
- p.Log().Trace("Received receipts response")
- // A batch of receipts arrived to one of our previous requests
- var resp struct {
- ReqID, BV uint64
- Receipts []types.Receipts
- }
- if err := msg.Decode(&resp); err != nil {
- return errResp(ErrDecode, "msg %v: %v", msg, err)
- }
- p.fcServer.ReceivedReply(resp.ReqID, resp.BV)
- deliverMsg = &Msg{
- MsgType: MsgReceipts,
- ReqID: resp.ReqID,
- Obj: resp.Receipts,
- }
-
- case GetProofsV2Msg:
- p.Log().Trace("Received les/2 proofs request")
- // Decode the retrieval message
- var req struct {
- ReqID uint64
- Reqs []ProofReq
- }
- if err := msg.Decode(&req); err != nil {
- return errResp(ErrDecode, "msg %v: %v", msg, err)
- }
- // Gather state data until the fetch or network limits is reached
- var (
- lastBHash common.Hash
- root common.Hash
- )
- reqCnt := len(req.Reqs)
- if accept(req.ReqID, uint64(reqCnt), MaxProofsFetch) {
- go func() {
- nodes := light.NewNodeSet()
-
- for i, request := range req.Reqs {
- if i != 0 && !task.waitOrStop() {
- sendResponse(req.ReqID, 0, nil, task.servingTime)
- return
- }
- // Look up the root hash belonging to the request
- var (
- number *uint64
- header *types.Header
- trie state.Trie
- )
- if request.BHash != lastBHash {
- root, lastBHash = common.Hash{}, request.BHash
-
- if number = rawdb.ReadHeaderNumber(pm.chainDb, request.BHash); number == nil {
- p.Log().Warn("Failed to retrieve block num for proof", "hash", request.BHash)
- atomic.AddUint32(&p.invalidCount, 1)
- continue
- }
- if header = rawdb.ReadHeader(pm.chainDb, request.BHash, *number); header == nil {
- p.Log().Warn("Failed to retrieve header for proof", "block", *number, "hash", request.BHash)
- continue
- }
- // Refuse to search stale state data in the database since looking for
- // a non-exist key is kind of expensive.
- local := pm.blockchain.CurrentHeader().Number.Uint64()
- if !pm.server.archiveMode && header.Number.Uint64()+core.TriesInMemory <= local {
- p.Log().Debug("Reject stale trie request", "number", header.Number.Uint64(), "head", local)
- atomic.AddUint32(&p.invalidCount, 1)
- continue
- }
- root = header.Root
- }
- // If a header lookup failed (non existent), ignore subsequent requests for the same header
- if root == (common.Hash{}) {
- atomic.AddUint32(&p.invalidCount, 1)
- continue
- }
- // Open the account or storage trie for the request
- statedb := pm.blockchain.StateCache()
-
- switch len(request.AccKey) {
- case 0:
- // No account key specified, open an account trie
- trie, err = statedb.OpenTrie(root)
- if trie == nil || err != nil {
- p.Log().Warn("Failed to open storage trie for proof", "block", header.Number, "hash", header.Hash(), "root", root, "err", err)
- continue
- }
- default:
- // Account key specified, open a storage trie
- account, err := pm.getAccount(statedb.TrieDB(), root, common.BytesToHash(request.AccKey))
- if err != nil {
- p.Log().Warn("Failed to retrieve account for proof", "block", header.Number, "hash", header.Hash(), "account", common.BytesToHash(request.AccKey), "err", err)
- atomic.AddUint32(&p.invalidCount, 1)
- continue
- }
- trie, err = statedb.OpenStorageTrie(common.BytesToHash(request.AccKey), account.Root)
- if trie == nil || err != nil {
- p.Log().Warn("Failed to open storage trie for proof", "block", header.Number, "hash", header.Hash(), "account", common.BytesToHash(request.AccKey), "root", account.Root, "err", err)
- continue
- }
- }
- // Prove the user's request from the account or stroage trie
- if err := trie.Prove(request.Key, request.FromLevel, nodes); err != nil {
- p.Log().Warn("Failed to prove state request", "block", header.Number, "hash", header.Hash(), "err", err)
- continue
- }
- if nodes.DataSize() >= softResponseLimit {
- break
- }
- }
- sendResponse(req.ReqID, uint64(reqCnt), p.ReplyProofsV2(req.ReqID, nodes.NodeList()), task.done())
- }()
- }
-
- case ProofsV2Msg:
- if pm.odr == nil {
- return errResp(ErrUnexpectedResponse, "")
- }
-
- p.Log().Trace("Received les/2 proofs response")
- // A batch of merkle proofs arrived to one of our previous requests
- var resp struct {
- ReqID, BV uint64
- Data light.NodeList
- }
- if err := msg.Decode(&resp); err != nil {
- return errResp(ErrDecode, "msg %v: %v", msg, err)
- }
- p.fcServer.ReceivedReply(resp.ReqID, resp.BV)
- deliverMsg = &Msg{
- MsgType: MsgProofsV2,
- ReqID: resp.ReqID,
- Obj: resp.Data,
- }
-
- case GetHelperTrieProofsMsg:
- p.Log().Trace("Received helper trie proof request")
- // Decode the retrieval message
- var req struct {
- ReqID uint64
- Reqs []HelperTrieReq
- }
- if err := msg.Decode(&req); err != nil {
- return errResp(ErrDecode, "msg %v: %v", msg, err)
- }
- // Gather state data until the fetch or network limits is reached
- var (
- auxBytes int
- auxData [][]byte
- )
- reqCnt := len(req.Reqs)
- if accept(req.ReqID, uint64(reqCnt), MaxHelperTrieProofsFetch) {
- go func() {
-
- var (
- lastIdx uint64
- lastType uint
- root common.Hash
- auxTrie *trie.Trie
- )
- nodes := light.NewNodeSet()
- for i, request := range req.Reqs {
- if i != 0 && !task.waitOrStop() {
- sendResponse(req.ReqID, 0, nil, task.servingTime)
- return
- }
- if auxTrie == nil || request.Type != lastType || request.TrieIdx != lastIdx {
- auxTrie, lastType, lastIdx = nil, request.Type, request.TrieIdx
-
- var prefix string
- if root, prefix = pm.getHelperTrie(request.Type, request.TrieIdx); root != (common.Hash{}) {
- auxTrie, _ = trie.New(root, trie.NewDatabase(rawdb.NewTable(pm.chainDb, prefix)))
- }
- }
- if request.AuxReq == auxRoot {
- var data []byte
- if root != (common.Hash{}) {
- data = root[:]
- }
- auxData = append(auxData, data)
- auxBytes += len(data)
- } else {
- if auxTrie != nil {
- auxTrie.Prove(request.Key, request.FromLevel, nodes)
- }
- if request.AuxReq != 0 {
- data := pm.getHelperTrieAuxData(request)
- auxData = append(auxData, data)
- auxBytes += len(data)
- }
- }
- if nodes.DataSize()+auxBytes >= softResponseLimit {
- break
- }
- }
- sendResponse(req.ReqID, uint64(reqCnt), p.ReplyHelperTrieProofs(req.ReqID, HelperTrieResps{Proofs: nodes.NodeList(), AuxData: auxData}), task.done())
- }()
- }
-
- case HelperTrieProofsMsg:
- if pm.odr == nil {
- return errResp(ErrUnexpectedResponse, "")
- }
-
- p.Log().Trace("Received helper trie proof response")
- var resp struct {
- ReqID, BV uint64
- Data HelperTrieResps
- }
- if err := msg.Decode(&resp); err != nil {
- return errResp(ErrDecode, "msg %v: %v", msg, err)
- }
-
- p.fcServer.ReceivedReply(resp.ReqID, resp.BV)
- deliverMsg = &Msg{
- MsgType: MsgHelperTrieProofs,
- ReqID: resp.ReqID,
- Obj: resp.Data,
- }
-
- case SendTxV2Msg:
- if pm.txpool == nil {
- return errResp(ErrRequestRejected, "")
- }
- // Transactions arrived, parse all of them and deliver to the pool
- var req struct {
- ReqID uint64
- Txs []*types.Transaction
- }
- if err := msg.Decode(&req); err != nil {
- return errResp(ErrDecode, "msg %v: %v", msg, err)
- }
- reqCnt := len(req.Txs)
- if accept(req.ReqID, uint64(reqCnt), MaxTxSend) {
- go func() {
- stats := make([]light.TxStatus, len(req.Txs))
- for i, tx := range req.Txs {
- if i != 0 && !task.waitOrStop() {
- sendResponse(req.ReqID, 0, nil, task.servingTime)
- return
- }
- hash := tx.Hash()
- stats[i] = pm.txStatus(hash)
- if stats[i].Status == core.TxStatusUnknown {
- addFn := pm.txpool.AddRemotes
- // Add txs synchronously for testing purpose
- if pm.addTxsSync {
- addFn = pm.txpool.AddRemotesSync
- }
- if errs := addFn([]*types.Transaction{tx}); errs[0] != nil {
- stats[i].Error = errs[0].Error()
- continue
- }
- stats[i] = pm.txStatus(hash)
- }
- }
- sendResponse(req.ReqID, uint64(reqCnt), p.ReplyTxStatus(req.ReqID, stats), task.done())
- }()
- }
-
- case GetTxStatusMsg:
- if pm.txpool == nil {
- return errResp(ErrUnexpectedResponse, "")
- }
- // Transactions arrived, parse all of them and deliver to the pool
- var req struct {
- ReqID uint64
- Hashes []common.Hash
- }
- if err := msg.Decode(&req); err != nil {
- return errResp(ErrDecode, "msg %v: %v", msg, err)
- }
- reqCnt := len(req.Hashes)
- if accept(req.ReqID, uint64(reqCnt), MaxTxStatus) {
- go func() {
- stats := make([]light.TxStatus, len(req.Hashes))
- for i, hash := range req.Hashes {
- if i != 0 && !task.waitOrStop() {
- sendResponse(req.ReqID, 0, nil, task.servingTime)
- return
- }
- stats[i] = pm.txStatus(hash)
- }
- sendResponse(req.ReqID, uint64(reqCnt), p.ReplyTxStatus(req.ReqID, stats), task.done())
- }()
- }
-
- case TxStatusMsg:
- if pm.odr == nil {
- return errResp(ErrUnexpectedResponse, "")
- }
-
- p.Log().Trace("Received tx status response")
- var resp struct {
- ReqID, BV uint64
- Status []light.TxStatus
- }
- if err := msg.Decode(&resp); err != nil {
- return errResp(ErrDecode, "msg %v: %v", msg, err)
- }
-
- p.fcServer.ReceivedReply(resp.ReqID, resp.BV)
-
- p.Log().Trace("Received helper trie proof response")
- deliverMsg = &Msg{
- MsgType: MsgTxStatus,
- ReqID: resp.ReqID,
- Obj: resp.Status,
- }
-
- case StopMsg:
- if pm.odr == nil {
- return errResp(ErrUnexpectedResponse, "")
- }
- p.freezeServer(true)
- pm.retriever.frozen(p)
- p.Log().Debug("Service stopped")
-
- case ResumeMsg:
- if pm.odr == nil {
- return errResp(ErrUnexpectedResponse, "")
- }
- var bv uint64
- if err := msg.Decode(&bv); err != nil {
- return errResp(ErrDecode, "msg %v: %v", msg, err)
- }
- p.fcServer.ResumeFreeze(bv)
- p.freezeServer(false)
- p.Log().Debug("Service resumed")
-
- default:
- p.Log().Trace("Received unknown message", "code", msg.Code)
- return errResp(ErrInvalidMsgCode, "%v", msg.Code)
- }
-
- if deliverMsg != nil {
- err := pm.retriever.deliver(p, deliverMsg)
- if err != nil {
- p.responseErrors++
- if p.responseErrors > maxResponseErrors {
- return err
- }
- }
- }
- // If the client has made too much invalid request(e.g. request a non-exist data),
- // reject them to prevent SPAM attack.
- if atomic.LoadUint32(&p.invalidCount) > maxRequestErrors {
- return errTooManyInvalidRequest
- }
- return nil
-}
-
-// getAccount retrieves an account from the state based at root.
-func (pm *ProtocolManager) getAccount(triedb *trie.Database, root, hash common.Hash) (state.Account, error) {
- trie, err := trie.New(root, triedb)
- if err != nil {
- return state.Account{}, err
- }
- blob, err := trie.TryGet(hash[:])
- if err != nil {
- return state.Account{}, err
- }
- var account state.Account
- if err = rlp.DecodeBytes(blob, &account); err != nil {
- return state.Account{}, err
- }
- return account, nil
-}
-
-// getHelperTrie returns the post-processed trie root for the given trie ID and section index
-func (pm *ProtocolManager) getHelperTrie(id uint, idx uint64) (common.Hash, string) {
- switch id {
- case htCanonical:
- sectionHead := rawdb.ReadCanonicalHash(pm.chainDb, (idx+1)*pm.iConfig.ChtSize-1)
- return light.GetChtRoot(pm.chainDb, idx, sectionHead), light.ChtTablePrefix
- case htBloomBits:
- sectionHead := rawdb.ReadCanonicalHash(pm.chainDb, (idx+1)*pm.iConfig.BloomTrieSize-1)
- return light.GetBloomTrieRoot(pm.chainDb, idx, sectionHead), light.BloomTrieTablePrefix
- }
- return common.Hash{}, ""
-}
-
-// getHelperTrieAuxData returns requested auxiliary data for the given HelperTrie request
-func (pm *ProtocolManager) getHelperTrieAuxData(req HelperTrieReq) []byte {
- if req.Type == htCanonical && req.AuxReq == auxHeader && len(req.Key) == 8 {
- blockNum := binary.BigEndian.Uint64(req.Key)
- hash := rawdb.ReadCanonicalHash(pm.chainDb, blockNum)
- return rawdb.ReadHeaderRLP(pm.chainDb, hash, blockNum)
- }
- return nil
-}
-
-func (pm *ProtocolManager) txStatus(hash common.Hash) light.TxStatus {
- var stat light.TxStatus
- stat.Status = pm.txpool.Status([]common.Hash{hash})[0]
- // If the transaction is unknown to the pool, try looking it up locally
- if stat.Status == core.TxStatusUnknown {
- if tx, blockHash, blockNumber, txIndex := rawdb.ReadTransaction(pm.chainDb, hash); tx != nil {
- stat.Status = core.TxStatusIncluded
- stat.Lookup = &rawdb.LegacyTxLookupEntry{BlockHash: blockHash, BlockIndex: blockNumber, Index: txIndex}
- }
- }
- return stat
-}
-
-// downloaderPeerNotify implements peerSetNotify
-type downloaderPeerNotify ProtocolManager
-
-type peerConnection struct {
- manager *ProtocolManager
- peer *peer
-}
-
-func (pc *peerConnection) Head() (common.Hash, *big.Int) {
- return pc.peer.HeadAndTd()
-}
-
-func (pc *peerConnection) RequestHeadersByHash(origin common.Hash, amount int, skip int, reverse bool) error {
- reqID := genReqID()
- rq := &distReq{
- getCost: func(dp distPeer) uint64 {
- peer := dp.(*peer)
- return peer.GetRequestCost(GetBlockHeadersMsg, amount)
- },
- canSend: func(dp distPeer) bool {
- return dp.(*peer) == pc.peer
- },
- request: func(dp distPeer) func() {
- peer := dp.(*peer)
- cost := peer.GetRequestCost(GetBlockHeadersMsg, amount)
- peer.fcServer.QueuedRequest(reqID, cost)
- return func() { peer.RequestHeadersByHash(reqID, cost, origin, amount, skip, reverse) }
- },
- }
- _, ok := <-pc.manager.reqDist.queue(rq)
- if !ok {
- return light.ErrNoPeers
- }
- return nil
-}
-
-func (pc *peerConnection) RequestHeadersByNumber(origin uint64, amount int, skip int, reverse bool) error {
- reqID := genReqID()
- rq := &distReq{
- getCost: func(dp distPeer) uint64 {
- peer := dp.(*peer)
- return peer.GetRequestCost(GetBlockHeadersMsg, amount)
- },
- canSend: func(dp distPeer) bool {
- return dp.(*peer) == pc.peer
- },
- request: func(dp distPeer) func() {
- peer := dp.(*peer)
- cost := peer.GetRequestCost(GetBlockHeadersMsg, amount)
- peer.fcServer.QueuedRequest(reqID, cost)
- return func() { peer.RequestHeadersByNumber(reqID, cost, origin, amount, skip, reverse) }
- },
- }
- _, ok := <-pc.manager.reqDist.queue(rq)
- if !ok {
- return light.ErrNoPeers
- }
- return nil
-}
-
-func (d *downloaderPeerNotify) registerPeer(p *peer) {
- pm := (*ProtocolManager)(d)
- pc := &peerConnection{
- manager: pm,
- peer: p,
- }
- pm.downloader.RegisterLightPeer(p.id, ethVersion, pc)
-}
-
-func (d *downloaderPeerNotify) unregisterPeer(p *peer) {
- pm := (*ProtocolManager)(d)
- pm.downloader.UnregisterPeer(p.id)
-}
diff --git a/les/handler_test.go b/les/handler_test.go
index dae583f6df..aad8d18e45 100644
--- a/les/handler_test.go
+++ b/les/handler_test.go
@@ -48,11 +48,13 @@ func expectResponse(r p2p.MsgReader, msgcode, reqID, bv uint64, data interface{}
// Tests that block headers can be retrieved from a remote chain based on user queries.
func TestGetBlockHeadersLes2(t *testing.T) { testGetBlockHeaders(t, 2) }
+func TestGetBlockHeadersLes3(t *testing.T) { testGetBlockHeaders(t, 3) }
func testGetBlockHeaders(t *testing.T, protocol int) {
- server, tearDown := newServerEnv(t, downloader.MaxHashFetch+15, protocol, nil)
+ server, tearDown := newServerEnv(t, downloader.MaxHashFetch+15, protocol, nil, false, true, 0)
defer tearDown()
- bc := server.pm.blockchain.(*core.BlockChain)
+
+ bc := server.handler.blockchain
// Create a "random" unknown hash for testing
var unknown common.Hash
@@ -114,10 +116,10 @@ func testGetBlockHeaders(t *testing.T, protocol int) {
[]common.Hash{bc.CurrentBlock().Hash()},
},
// Ensure protocol limits are honored
- /*{
- &getBlockHeadersData{Origin: hashOrNumber{Number: bc.CurrentBlock().NumberU64() - 1}, Amount: limit + 10, Reverse: true},
- bc.GetBlockHashesFromHash(bc.CurrentBlock().Hash(), limit),
- },*/
+ //{
+ // &getBlockHeadersData{Origin: hashOrNumber{Number: bc.CurrentBlock().NumberU64() - 1}, Amount: limit + 10, Reverse: true},
+ // []common.Hash{},
+ //},
// Check that requesting more than available is handled gracefully
{
&getBlockHeadersData{Origin: hashOrNumber{Number: bc.CurrentBlock().NumberU64() - 4}, Skip: 3, Amount: 3},
@@ -165,9 +167,10 @@ func testGetBlockHeaders(t *testing.T, protocol int) {
}
// Send the hash request and verify the response
reqID++
- cost := server.tPeer.GetRequestCost(GetBlockHeadersMsg, int(tt.query.Amount))
- sendRequest(server.tPeer.app, GetBlockHeadersMsg, reqID, cost, tt.query)
- if err := expectResponse(server.tPeer.app, BlockHeadersMsg, reqID, testBufLimit, headers); err != nil {
+
+ cost := server.peer.peer.GetRequestCost(GetBlockHeadersMsg, int(tt.query.Amount))
+ sendRequest(server.peer.app, GetBlockHeadersMsg, reqID, cost, tt.query)
+ if err := expectResponse(server.peer.app, BlockHeadersMsg, reqID, testBufLimit, headers); err != nil {
t.Errorf("test %d: headers mismatch: %v", i, err)
}
}
@@ -175,11 +178,13 @@ func testGetBlockHeaders(t *testing.T, protocol int) {
// Tests that block contents can be retrieved from a remote chain based on their hashes.
func TestGetBlockBodiesLes2(t *testing.T) { testGetBlockBodies(t, 2) }
+func TestGetBlockBodiesLes3(t *testing.T) { testGetBlockBodies(t, 3) }
func testGetBlockBodies(t *testing.T, protocol int) {
- server, tearDown := newServerEnv(t, downloader.MaxBlockFetch+15, protocol, nil)
+ server, tearDown := newServerEnv(t, downloader.MaxBlockFetch+15, protocol, nil, false, true, 0)
defer tearDown()
- bc := server.pm.blockchain.(*core.BlockChain)
+
+ bc := server.handler.blockchain
// Create a batch of tests for various scenarios
limit := MaxBodyFetch
@@ -239,10 +244,11 @@ func testGetBlockBodies(t *testing.T, protocol int) {
}
}
reqID++
+
// Send the hash request and verify the response
- cost := server.tPeer.GetRequestCost(GetBlockBodiesMsg, len(hashes))
- sendRequest(server.tPeer.app, GetBlockBodiesMsg, reqID, cost, hashes)
- if err := expectResponse(server.tPeer.app, BlockBodiesMsg, reqID, testBufLimit, bodies); err != nil {
+ cost := server.peer.peer.GetRequestCost(GetBlockBodiesMsg, len(hashes))
+ sendRequest(server.peer.app, GetBlockBodiesMsg, reqID, cost, hashes)
+ if err := expectResponse(server.peer.app, BlockBodiesMsg, reqID, testBufLimit, bodies); err != nil {
t.Errorf("test %d: bodies mismatch: %v", i, err)
}
}
@@ -250,12 +256,13 @@ func testGetBlockBodies(t *testing.T, protocol int) {
// Tests that the contract codes can be retrieved based on account addresses.
func TestGetCodeLes2(t *testing.T) { testGetCode(t, 2) }
+func TestGetCodeLes3(t *testing.T) { testGetCode(t, 3) }
func testGetCode(t *testing.T, protocol int) {
// Assemble the test environment
- server, tearDown := newServerEnv(t, 4, protocol, nil)
+ server, tearDown := newServerEnv(t, 4, protocol, nil, false, true, 0)
defer tearDown()
- bc := server.pm.blockchain.(*core.BlockChain)
+ bc := server.handler.blockchain
var codereqs []*CodeReq
var codes [][]byte
@@ -271,9 +278,9 @@ func testGetCode(t *testing.T, protocol int) {
}
}
- cost := server.tPeer.GetRequestCost(GetCodeMsg, len(codereqs))
- sendRequest(server.tPeer.app, GetCodeMsg, 42, cost, codereqs)
- if err := expectResponse(server.tPeer.app, CodeMsg, 42, testBufLimit, codes); err != nil {
+ cost := server.peer.peer.GetRequestCost(GetCodeMsg, len(codereqs))
+ sendRequest(server.peer.app, GetCodeMsg, 42, cost, codereqs)
+ if err := expectResponse(server.peer.app, CodeMsg, 42, testBufLimit, codes); err != nil {
t.Errorf("codes mismatch: %v", err)
}
}
@@ -283,18 +290,18 @@ func TestGetStaleCodeLes2(t *testing.T) { testGetStaleCode(t, 2) }
func TestGetStaleCodeLes3(t *testing.T) { testGetStaleCode(t, 3) }
func testGetStaleCode(t *testing.T, protocol int) {
- server, tearDown := newServerEnv(t, core.TriesInMemory+4, protocol, nil)
+ server, tearDown := newServerEnv(t, core.TriesInMemory+4, protocol, nil, false, true, 0)
defer tearDown()
- bc := server.pm.blockchain.(*core.BlockChain)
+ bc := server.handler.blockchain
check := func(number uint64, expected [][]byte) {
req := &CodeReq{
BHash: bc.GetHeaderByNumber(number).Hash(),
AccKey: crypto.Keccak256(testContractAddr[:]),
}
- cost := server.tPeer.GetRequestCost(GetCodeMsg, 1)
- sendRequest(server.tPeer.app, GetCodeMsg, 42, cost, []*CodeReq{req})
- if err := expectResponse(server.tPeer.app, CodeMsg, 42, testBufLimit, expected); err != nil {
+ cost := server.peer.peer.GetRequestCost(GetCodeMsg, 1)
+ sendRequest(server.peer.app, GetCodeMsg, 42, cost, []*CodeReq{req})
+ if err := expectResponse(server.peer.app, CodeMsg, 42, testBufLimit, expected); err != nil {
t.Errorf("codes mismatch: %v", err)
}
}
@@ -305,12 +312,14 @@ func testGetStaleCode(t *testing.T, protocol int) {
// Tests that the transaction receipts can be retrieved based on hashes.
func TestGetReceiptLes2(t *testing.T) { testGetReceipt(t, 2) }
+func TestGetReceiptLes3(t *testing.T) { testGetReceipt(t, 3) }
func testGetReceipt(t *testing.T, protocol int) {
// Assemble the test environment
- server, tearDown := newServerEnv(t, 4, protocol, nil)
+ server, tearDown := newServerEnv(t, 4, protocol, nil, false, true, 0)
defer tearDown()
- bc := server.pm.blockchain.(*core.BlockChain)
+
+ bc := server.handler.blockchain
// Collect the hashes to request, and the response to expect
var receipts []types.Receipts
@@ -322,26 +331,28 @@ func testGetReceipt(t *testing.T, protocol int) {
receipts = append(receipts, rawdb.ReadRawReceipts(server.db, block.Hash(), block.NumberU64()))
}
// Send the hash request and verify the response
- cost := server.tPeer.GetRequestCost(GetReceiptsMsg, len(hashes))
- sendRequest(server.tPeer.app, GetReceiptsMsg, 42, cost, hashes)
- if err := expectResponse(server.tPeer.app, ReceiptsMsg, 42, testBufLimit, receipts); err != nil {
+ cost := server.peer.peer.GetRequestCost(GetReceiptsMsg, len(hashes))
+ sendRequest(server.peer.app, GetReceiptsMsg, 42, cost, hashes)
+ if err := expectResponse(server.peer.app, ReceiptsMsg, 42, testBufLimit, receipts); err != nil {
t.Errorf("receipts mismatch: %v", err)
}
}
// Tests that trie merkle proofs can be retrieved
func TestGetProofsLes2(t *testing.T) { testGetProofs(t, 2) }
+func TestGetProofsLes3(t *testing.T) { testGetProofs(t, 3) }
func testGetProofs(t *testing.T, protocol int) {
// Assemble the test environment
- server, tearDown := newServerEnv(t, 4, protocol, nil)
+ server, tearDown := newServerEnv(t, 4, protocol, nil, false, true, 0)
defer tearDown()
- bc := server.pm.blockchain.(*core.BlockChain)
+
+ bc := server.handler.blockchain
var proofreqs []ProofReq
proofsV2 := light.NewNodeSet()
- accounts := []common.Address{bankAddr, userAddr1, userAddr2, {}}
+ accounts := []common.Address{bankAddr, userAddr1, userAddr2, signerAddr, {}}
for i := uint64(0); i <= bc.CurrentBlock().NumberU64(); i++ {
header := bc.GetHeaderByNumber(i)
trie, _ := trie.New(header.Root, trie.NewDatabase(server.db))
@@ -356,9 +367,9 @@ func testGetProofs(t *testing.T, protocol int) {
}
}
// Send the proof request and verify the response
- cost := server.tPeer.GetRequestCost(GetProofsV2Msg, len(proofreqs))
- sendRequest(server.tPeer.app, GetProofsV2Msg, 42, cost, proofreqs)
- if err := expectResponse(server.tPeer.app, ProofsV2Msg, 42, testBufLimit, proofsV2.NodeList()); err != nil {
+ cost := server.peer.peer.GetRequestCost(GetProofsV2Msg, len(proofreqs))
+ sendRequest(server.peer.app, GetProofsV2Msg, 42, cost, proofreqs)
+ if err := expectResponse(server.peer.app, ProofsV2Msg, 42, testBufLimit, proofsV2.NodeList()); err != nil {
t.Errorf("proofs mismatch: %v", err)
}
}
@@ -368,9 +379,9 @@ func TestGetStaleProofLes2(t *testing.T) { testGetStaleProof(t, 2) }
func TestGetStaleProofLes3(t *testing.T) { testGetStaleProof(t, 3) }
func testGetStaleProof(t *testing.T, protocol int) {
- server, tearDown := newServerEnv(t, core.TriesInMemory+4, protocol, nil)
+ server, tearDown := newServerEnv(t, core.TriesInMemory+4, protocol, nil, false, true, 0)
defer tearDown()
- bc := server.pm.blockchain.(*core.BlockChain)
+ bc := server.handler.blockchain
check := func(number uint64, wantOK bool) {
var (
@@ -381,8 +392,8 @@ func testGetStaleProof(t *testing.T, protocol int) {
BHash: header.Hash(),
Key: account,
}
- cost := server.tPeer.GetRequestCost(GetProofsV2Msg, 1)
- sendRequest(server.tPeer.app, GetProofsV2Msg, 42, cost, []*ProofReq{req})
+ cost := server.peer.peer.GetRequestCost(GetProofsV2Msg, 1)
+ sendRequest(server.peer.app, GetProofsV2Msg, 42, cost, []*ProofReq{req})
var expected []rlp.RawValue
if wantOK {
@@ -391,7 +402,7 @@ func testGetStaleProof(t *testing.T, protocol int) {
t.Prove(account, 0, proofsV2)
expected = proofsV2.NodeList()
}
- if err := expectResponse(server.tPeer.app, ProofsV2Msg, 42, testBufLimit, expected); err != nil {
+ if err := expectResponse(server.peer.app, ProofsV2Msg, 42, testBufLimit, expected); err != nil {
t.Errorf("codes mismatch: %v", err)
}
}
@@ -402,6 +413,7 @@ func testGetStaleProof(t *testing.T, protocol int) {
// Tests that CHT proofs can be correctly retrieved.
func TestGetCHTProofsLes2(t *testing.T) { testGetCHTProofs(t, 2) }
+func TestGetCHTProofsLes3(t *testing.T) { testGetCHTProofs(t, 3) }
func testGetCHTProofs(t *testing.T, protocol int) {
config := light.TestServerIndexerConfig
@@ -415,9 +427,10 @@ func testGetCHTProofs(t *testing.T, protocol int) {
time.Sleep(10 * time.Millisecond)
}
}
- server, tearDown := newServerEnv(t, int(config.ChtSize+config.ChtConfirms), protocol, waitIndexers)
+ server, tearDown := newServerEnv(t, int(config.ChtSize+config.ChtConfirms), protocol, waitIndexers, false, true, 0)
defer tearDown()
- bc := server.pm.blockchain.(*core.BlockChain)
+
+ bc := server.handler.blockchain
// Assemble the proofs from the different protocols
header := bc.GetHeaderByNumber(config.ChtSize - 1)
@@ -440,15 +453,18 @@ func testGetCHTProofs(t *testing.T, protocol int) {
AuxReq: auxHeader,
}}
// Send the proof request and verify the response
- cost := server.tPeer.GetRequestCost(GetHelperTrieProofsMsg, len(requestsV2))
- sendRequest(server.tPeer.app, GetHelperTrieProofsMsg, 42, cost, requestsV2)
- if err := expectResponse(server.tPeer.app, HelperTrieProofsMsg, 42, testBufLimit, proofsV2); err != nil {
+ cost := server.peer.peer.GetRequestCost(GetHelperTrieProofsMsg, len(requestsV2))
+ sendRequest(server.peer.app, GetHelperTrieProofsMsg, 42, cost, requestsV2)
+ if err := expectResponse(server.peer.app, HelperTrieProofsMsg, 42, testBufLimit, proofsV2); err != nil {
t.Errorf("proofs mismatch: %v", err)
}
}
+func TestGetBloombitsProofsLes2(t *testing.T) { testGetBloombitsProofs(t, 2) }
+func TestGetBloombitsProofsLes3(t *testing.T) { testGetBloombitsProofs(t, 3) }
+
// Tests that bloombits proofs can be correctly retrieved.
-func TestGetBloombitsProofs(t *testing.T) {
+func testGetBloombitsProofs(t *testing.T, protocol int) {
config := light.TestServerIndexerConfig
waitIndexers := func(cIndexer, bIndexer, btIndexer *core.ChainIndexer) {
@@ -460,9 +476,10 @@ func TestGetBloombitsProofs(t *testing.T) {
time.Sleep(10 * time.Millisecond)
}
}
- server, tearDown := newServerEnv(t, int(config.BloomTrieSize+config.BloomTrieConfirms), 2, waitIndexers)
+ server, tearDown := newServerEnv(t, int(config.BloomTrieSize+config.BloomTrieConfirms), protocol, waitIndexers, false, true, 0)
defer tearDown()
- bc := server.pm.blockchain.(*core.BlockChain)
+
+ bc := server.handler.blockchain
// Request and verify each bit of the bloom bits proofs
for bit := 0; bit < 2048; bit++ {
@@ -485,43 +502,39 @@ func TestGetBloombitsProofs(t *testing.T) {
trie.Prove(key, 0, &proofs.Proofs)
// Send the proof request and verify the response
- cost := server.tPeer.GetRequestCost(GetHelperTrieProofsMsg, len(requests))
- sendRequest(server.tPeer.app, GetHelperTrieProofsMsg, 42, cost, requests)
- if err := expectResponse(server.tPeer.app, HelperTrieProofsMsg, 42, testBufLimit, proofs); err != nil {
+ cost := server.peer.peer.GetRequestCost(GetHelperTrieProofsMsg, len(requests))
+ sendRequest(server.peer.app, GetHelperTrieProofsMsg, 42, cost, requests)
+ if err := expectResponse(server.peer.app, HelperTrieProofsMsg, 42, testBufLimit, proofs); err != nil {
t.Errorf("bit %d: proofs mismatch: %v", bit, err)
}
}
}
-func TestTransactionStatusLes2(t *testing.T) {
- server, tearDown := newServerEnv(t, 0, 2, nil)
+func TestTransactionStatusLes2(t *testing.T) { testTransactionStatus(t, 2) }
+func TestTransactionStatusLes3(t *testing.T) { testTransactionStatus(t, 3) }
+
+func testTransactionStatus(t *testing.T, protocol int) {
+ server, tearDown := newServerEnv(t, 0, protocol, nil, false, true, 0)
defer tearDown()
- server.pm.addTxsSync = true
+ server.handler.addTxsSync = true
- chain := server.pm.blockchain.(*core.BlockChain)
- config := core.DefaultTxPoolConfig
- config.Journal = ""
- txpool := core.NewTxPool(config, params.TestChainConfig, chain)
- server.pm.txpool = txpool
- peer, _ := newTestPeer(t, "peer", 2, server.pm, true, 0)
- defer peer.close()
+ chain := server.handler.blockchain
var reqID uint64
test := func(tx *types.Transaction, send bool, expStatus light.TxStatus) {
reqID++
if send {
- cost := server.tPeer.GetRequestCost(SendTxV2Msg, 1)
- sendRequest(server.tPeer.app, SendTxV2Msg, reqID, cost, types.Transactions{tx})
+ cost := server.peer.peer.GetRequestCost(SendTxV2Msg, 1)
+ sendRequest(server.peer.app, SendTxV2Msg, reqID, cost, types.Transactions{tx})
} else {
- cost := server.tPeer.GetRequestCost(GetTxStatusMsg, 1)
- sendRequest(server.tPeer.app, GetTxStatusMsg, reqID, cost, []common.Hash{tx.Hash()})
+ cost := server.peer.peer.GetRequestCost(GetTxStatusMsg, 1)
+ sendRequest(server.peer.app, GetTxStatusMsg, reqID, cost, []common.Hash{tx.Hash()})
}
- if err := expectResponse(server.tPeer.app, TxStatusMsg, reqID, testBufLimit, []light.TxStatus{expStatus}); err != nil {
+ if err := expectResponse(server.peer.app, TxStatusMsg, reqID, testBufLimit, []light.TxStatus{expStatus}); err != nil {
t.Errorf("transaction status mismatch")
}
}
-
signer := types.HomesteadSigner{}
// test error status by sending an underpriced transaction
@@ -551,18 +564,22 @@ func TestTransactionStatusLes2(t *testing.T) {
}
// wait until TxPool processes the inserted block
for i := 0; i < 10; i++ {
- if pending, _ := txpool.Stats(); pending == 1 {
+ if pending, _ := server.handler.txpool.Stats(); pending == 1 {
break
}
time.Sleep(100 * time.Millisecond)
}
- if pending, _ := txpool.Stats(); pending != 1 {
+ if pending, _ := server.handler.txpool.Stats(); pending != 1 {
t.Fatalf("pending count mismatch: have %d, want 1", pending)
}
+ // Discard new block announcement
+ msg, _ := server.peer.app.ReadMsg()
+ msg.Discard()
// check if their status is included now
block1hash := rawdb.ReadCanonicalHash(server.db, 1)
test(tx1, false, light.TxStatus{Status: core.TxStatusIncluded, Lookup: &rawdb.LegacyTxLookupEntry{BlockHash: block1hash, BlockIndex: 1, Index: 0}})
+
test(tx2, false, light.TxStatus{Status: core.TxStatusIncluded, Lookup: &rawdb.LegacyTxLookupEntry{BlockHash: block1hash, BlockIndex: 1, Index: 1}})
// create a reorg that rolls them back
@@ -572,46 +589,46 @@ func TestTransactionStatusLes2(t *testing.T) {
}
// wait until TxPool processes the reorg
for i := 0; i < 10; i++ {
- if pending, _ := txpool.Stats(); pending == 3 {
+ if pending, _ := server.handler.txpool.Stats(); pending == 3 {
break
}
time.Sleep(100 * time.Millisecond)
}
- if pending, _ := txpool.Stats(); pending != 3 {
+ if pending, _ := server.handler.txpool.Stats(); pending != 3 {
t.Fatalf("pending count mismatch: have %d, want 3", pending)
}
+ // Discard new block announcement
+ msg, _ = server.peer.app.ReadMsg()
+ msg.Discard()
+
// check if their status is pending again
test(tx1, false, light.TxStatus{Status: core.TxStatusPending})
test(tx2, false, light.TxStatus{Status: core.TxStatusPending})
}
func TestStopResumeLes3(t *testing.T) {
- db := rawdb.NewMemoryDatabase()
- clock := &mclock.Simulated{}
- testCost := testBufLimit / 10
- pm, _, err := newTestProtocolManager(false, 0, nil, nil, nil, db, nil, 0, testCost, clock)
- if err != nil {
- t.Fatalf("Failed to create protocol manager: %v", err)
- }
- peer, _ := newTestPeer(t, "peer", 3, pm, true, testCost)
- defer peer.close()
+ server, tearDown := newServerEnv(t, 0, 3, nil, true, true, testBufLimit/10)
+ defer tearDown()
- expBuf := testBufLimit
- var reqID uint64
+ server.handler.server.costTracker.testing = true
- header := pm.blockchain.CurrentHeader()
+ var (
+ reqID uint64
+ expBuf = testBufLimit
+ testCost = testBufLimit / 10
+ )
+ header := server.handler.blockchain.CurrentHeader()
req := func() {
reqID++
- sendRequest(peer.app, GetBlockHeadersMsg, reqID, testCost, &getBlockHeadersData{Origin: hashOrNumber{Hash: header.Hash()}, Amount: 1})
+ sendRequest(server.peer.app, GetBlockHeadersMsg, reqID, testCost, &getBlockHeadersData{Origin: hashOrNumber{Hash: header.Hash()}, Amount: 1})
}
-
for i := 1; i <= 5; i++ {
// send requests while we still have enough buffer and expect a response
for expBuf >= testCost {
req()
expBuf -= testCost
- if err := expectResponse(peer.app, BlockHeadersMsg, reqID, expBuf, []*types.Header{header}); err != nil {
- t.Fatalf("expected response and failed: %v", err)
+ if err := expectResponse(server.peer.app, BlockHeadersMsg, reqID, expBuf, []*types.Header{header}); err != nil {
+ t.Errorf("expected response and failed: %v", err)
}
}
// send some more requests in excess and expect a single StopMsg
@@ -620,15 +637,16 @@ func TestStopResumeLes3(t *testing.T) {
req()
c--
}
- if err := p2p.ExpectMsg(peer.app, StopMsg, nil); err != nil {
+ if err := p2p.ExpectMsg(server.peer.app, StopMsg, nil); err != nil {
t.Errorf("expected StopMsg and failed: %v", err)
}
// wait until the buffer is recharged by half of the limit
wait := testBufLimit / testBufRecharge / 2
- clock.Run(time.Millisecond * time.Duration(wait))
+ server.clock.(*mclock.Simulated).Run(time.Millisecond * time.Duration(wait))
+
// expect a ResumeMsg with the partially recharged buffer value
expBuf += testBufRecharge * wait
- if err := p2p.ExpectMsg(peer.app, ResumeMsg, expBuf); err != nil {
+ if err := p2p.ExpectMsg(server.peer.app, ResumeMsg, expBuf); err != nil {
t.Errorf("expected ResumeMsg and failed: %v", err)
}
}
diff --git a/les/metrics.go b/les/metrics.go
index 4fe7031163..797631b8ef 100644
--- a/les/metrics.go
+++ b/les/metrics.go
@@ -22,31 +22,73 @@ import (
)
var (
- miscInPacketsMeter = metrics.NewRegisteredMeter("les/misc/in/packets", nil)
- miscInTrafficMeter = metrics.NewRegisteredMeter("les/misc/in/traffic", nil)
- miscOutPacketsMeter = metrics.NewRegisteredMeter("les/misc/out/packets", nil)
- miscOutTrafficMeter = metrics.NewRegisteredMeter("les/misc/out/traffic", nil)
-
- connectionTimer = metrics.NewRegisteredTimer("les/connectionTime", nil)
-
- totalConnectedGauge = metrics.NewRegisteredGauge("les/server/totalConnected", nil)
- totalCapacityGauge = metrics.NewRegisteredGauge("les/server/totalCapacity", nil)
- totalRechargeGauge = metrics.NewRegisteredGauge("les/server/totalRecharge", nil)
- blockProcessingTimer = metrics.NewRegisteredTimer("les/server/blockProcessingTime", nil)
- requestServedTimer = metrics.NewRegisteredTimer("les/server/requestServed", nil)
- requestServedMeter = metrics.NewRegisteredMeter("les/server/totalRequestServed", nil)
- requestEstimatedMeter = metrics.NewRegisteredMeter("les/server/totalRequestEstimated", nil)
- relativeCostHistogram = metrics.NewRegisteredHistogram("les/server/relativeCost", nil, metrics.NewExpDecaySample(1028, 0.015))
- recentServedGauge = metrics.NewRegisteredGauge("les/server/recentRequestServed", nil)
- recentEstimatedGauge = metrics.NewRegisteredGauge("les/server/recentRequestEstimated", nil)
- sqServedGauge = metrics.NewRegisteredGauge("les/server/servingQueue/served", nil)
- sqQueuedGauge = metrics.NewRegisteredGauge("les/server/servingQueue/queued", nil)
+ miscInPacketsMeter = metrics.NewRegisteredMeter("les/misc/in/packets/total", nil)
+ miscInTrafficMeter = metrics.NewRegisteredMeter("les/misc/in/traffic/total", nil)
+ miscInHeaderPacketsMeter = metrics.NewRegisteredMeter("les/misc/in/packets/header", nil)
+ miscInHeaderTrafficMeter = metrics.NewRegisteredMeter("les/misc/in/traffic/header", nil)
+ miscInBodyPacketsMeter = metrics.NewRegisteredMeter("les/misc/in/packets/body", nil)
+ miscInBodyTrafficMeter = metrics.NewRegisteredMeter("les/misc/in/traffic/body", nil)
+ miscInCodePacketsMeter = metrics.NewRegisteredMeter("les/misc/in/packets/code", nil)
+ miscInCodeTrafficMeter = metrics.NewRegisteredMeter("les/misc/in/traffic/code", nil)
+ miscInReceiptPacketsMeter = metrics.NewRegisteredMeter("les/misc/in/packets/receipt", nil)
+ miscInReceiptTrafficMeter = metrics.NewRegisteredMeter("les/misc/in/traffic/receipt", nil)
+ miscInTrieProofPacketsMeter = metrics.NewRegisteredMeter("les/misc/in/packets/proof", nil)
+ miscInTrieProofTrafficMeter = metrics.NewRegisteredMeter("les/misc/in/traffic/proof", nil)
+ miscInHelperTriePacketsMeter = metrics.NewRegisteredMeter("les/misc/in/packets/helperTrie", nil)
+ miscInHelperTrieTrafficMeter = metrics.NewRegisteredMeter("les/misc/in/traffic/helperTrie", nil)
+ miscInTxsPacketsMeter = metrics.NewRegisteredMeter("les/misc/in/packets/txs", nil)
+ miscInTxsTrafficMeter = metrics.NewRegisteredMeter("les/misc/in/traffic/txs", nil)
+ miscInTxStatusPacketsMeter = metrics.NewRegisteredMeter("les/misc/in/packets/txStatus", nil)
+ miscInTxStatusTrafficMeter = metrics.NewRegisteredMeter("les/misc/in/traffic/txStatus", nil)
+
+ miscOutPacketsMeter = metrics.NewRegisteredMeter("les/misc/out/packets/total", nil)
+ miscOutTrafficMeter = metrics.NewRegisteredMeter("les/misc/out/traffic/total", nil)
+ miscOutHeaderPacketsMeter = metrics.NewRegisteredMeter("les/misc/out/packets/header", nil)
+ miscOutHeaderTrafficMeter = metrics.NewRegisteredMeter("les/misc/out/traffic/header", nil)
+ miscOutBodyPacketsMeter = metrics.NewRegisteredMeter("les/misc/out/packets/body", nil)
+ miscOutBodyTrafficMeter = metrics.NewRegisteredMeter("les/misc/out/traffic/body", nil)
+ miscOutCodePacketsMeter = metrics.NewRegisteredMeter("les/misc/out/packets/code", nil)
+ miscOutCodeTrafficMeter = metrics.NewRegisteredMeter("les/misc/out/traffic/code", nil)
+ miscOutReceiptPacketsMeter = metrics.NewRegisteredMeter("les/misc/out/packets/receipt", nil)
+ miscOutReceiptTrafficMeter = metrics.NewRegisteredMeter("les/misc/out/traffic/receipt", nil)
+ miscOutTrieProofPacketsMeter = metrics.NewRegisteredMeter("les/misc/out/packets/proof", nil)
+ miscOutTrieProofTrafficMeter = metrics.NewRegisteredMeter("les/misc/out/traffic/proof", nil)
+ miscOutHelperTriePacketsMeter = metrics.NewRegisteredMeter("les/misc/out/packets/helperTrie", nil)
+ miscOutHelperTrieTrafficMeter = metrics.NewRegisteredMeter("les/misc/out/traffic/helperTrie", nil)
+ miscOutTxsPacketsMeter = metrics.NewRegisteredMeter("les/misc/out/packets/txs", nil)
+ miscOutTxsTrafficMeter = metrics.NewRegisteredMeter("les/misc/out/traffic/txs", nil)
+ miscOutTxStatusPacketsMeter = metrics.NewRegisteredMeter("les/misc/out/packets/txStatus", nil)
+ miscOutTxStatusTrafficMeter = metrics.NewRegisteredMeter("les/misc/out/traffic/txStatus", nil)
+
+ connectionTimer = metrics.NewRegisteredTimer("les/connection/duration", nil)
+ serverConnectionGauge = metrics.NewRegisteredGauge("les/connection/server", nil)
+ clientConnectionGauge = metrics.NewRegisteredGauge("les/connection/client", nil)
+
+ totalCapacityGauge = metrics.NewRegisteredGauge("les/server/totalCapacity", nil)
+ totalRechargeGauge = metrics.NewRegisteredGauge("les/server/totalRecharge", nil)
+ totalConnectedGauge = metrics.NewRegisteredGauge("les/server/totalConnected", nil)
+ blockProcessingTimer = metrics.NewRegisteredTimer("les/server/blockProcessingTime", nil)
+
+ requestServedMeter = metrics.NewRegisteredMeter("les/server/req/avgServedTime", nil)
+ requestServedTimer = metrics.NewRegisteredTimer("les/server/req/servedTime", nil)
+ requestEstimatedMeter = metrics.NewRegisteredMeter("les/server/req/avgEstimatedTime", nil)
+ requestEstimatedTimer = metrics.NewRegisteredTimer("les/server/req/estimatedTime", nil)
+ relativeCostHistogram = metrics.NewRegisteredHistogram("les/server/req/relative", nil, metrics.NewExpDecaySample(1028, 0.015))
+
+ recentServedGauge = metrics.NewRegisteredGauge("les/server/recentRequestServed", nil)
+ recentEstimatedGauge = metrics.NewRegisteredGauge("les/server/recentRequestEstimated", nil)
+ sqServedGauge = metrics.NewRegisteredGauge("les/server/servingQueue/served", nil)
+ sqQueuedGauge = metrics.NewRegisteredGauge("les/server/servingQueue/queued", nil)
+
clientConnectedMeter = metrics.NewRegisteredMeter("les/server/clientEvent/connected", nil)
clientRejectedMeter = metrics.NewRegisteredMeter("les/server/clientEvent/rejected", nil)
clientKickedMeter = metrics.NewRegisteredMeter("les/server/clientEvent/kicked", nil)
clientDisconnectedMeter = metrics.NewRegisteredMeter("les/server/clientEvent/disconnected", nil)
clientFreezeMeter = metrics.NewRegisteredMeter("les/server/clientEvent/freeze", nil)
clientErrorMeter = metrics.NewRegisteredMeter("les/server/clientEvent/error", nil)
+
+ requestRTT = metrics.NewRegisteredTimer("les/client/req/rtt", nil)
+ requestSendDelay = metrics.NewRegisteredTimer("les/client/req/sendDelay", nil)
)
// meteredMsgReadWriter is a wrapper around a p2p.MsgReadWriter, capable of
@@ -58,17 +100,11 @@ type meteredMsgReadWriter struct {
// newMeteredMsgWriter wraps a p2p MsgReadWriter with metering support. If the
// metrics system is disabled, this function returns the original object.
-func newMeteredMsgWriter(rw p2p.MsgReadWriter) p2p.MsgReadWriter {
+func newMeteredMsgWriter(rw p2p.MsgReadWriter, version int) p2p.MsgReadWriter {
if !metrics.Enabled {
return rw
}
- return &meteredMsgReadWriter{MsgReadWriter: rw}
-}
-
-// Init sets the protocol version used by the stream to know which meters to
-// increment in case of overlapping message ids between protocol versions.
-func (rw *meteredMsgReadWriter) Init(version int) {
- rw.version = version
+ return &meteredMsgReadWriter{MsgReadWriter: rw, version: version}
}
func (rw *meteredMsgReadWriter) ReadMsg() (p2p.Msg, error) {
diff --git a/les/odr.go b/les/odr.go
index a26c06680b..136ecf4df4 100644
--- a/les/odr.go
+++ b/les/odr.go
@@ -18,7 +18,9 @@ package les
import (
"context"
+ "time"
+ "github.com/ethereum/go-ethereum/common/mclock"
"github.com/ethereum/go-ethereum/core"
"github.com/ethereum/go-ethereum/ethdb"
"github.com/ethereum/go-ethereum/light"
@@ -120,10 +122,11 @@ func (odr *LesOdr) Retrieve(ctx context.Context, req light.OdrRequest) (err erro
return func() { lreq.Request(reqID, p) }
},
}
-
+ sent := mclock.Now()
if err = odr.retriever.retrieve(ctx, reqID, rq, func(p distPeer, msg *Msg) error { return lreq.Validate(odr.db, msg) }, odr.stop); err == nil {
// retrieved from network, store in db
req.StoreResult(odr.db)
+ requestRTT.Update(time.Duration(mclock.Now() - sent))
} else {
log.Debug("Failed to retrieve data from network", "err", err)
}
diff --git a/les/odr_test.go b/les/odr_test.go
index 1e8a5f8b46..97217e9488 100644
--- a/les/odr_test.go
+++ b/les/odr_test.go
@@ -39,6 +39,7 @@ import (
type odrTestFn func(ctx context.Context, db ethdb.Database, config *params.ChainConfig, bc *core.BlockChain, lc *light.LightChain, bhash common.Hash) []byte
func TestOdrGetBlockLes2(t *testing.T) { testOdr(t, 2, 1, true, odrGetBlock) }
+func TestOdrGetBlockLes3(t *testing.T) { testOdr(t, 3, 1, true, odrGetBlock) }
func odrGetBlock(ctx context.Context, db ethdb.Database, config *params.ChainConfig, bc *core.BlockChain, lc *light.LightChain, bhash common.Hash) []byte {
var block *types.Block
@@ -55,6 +56,7 @@ func odrGetBlock(ctx context.Context, db ethdb.Database, config *params.ChainCon
}
func TestOdrGetReceiptsLes2(t *testing.T) { testOdr(t, 2, 1, true, odrGetReceipts) }
+func TestOdrGetReceiptsLes3(t *testing.T) { testOdr(t, 3, 1, true, odrGetReceipts) }
func odrGetReceipts(ctx context.Context, db ethdb.Database, config *params.ChainConfig, bc *core.BlockChain, lc *light.LightChain, bhash common.Hash) []byte {
var receipts types.Receipts
@@ -75,6 +77,7 @@ func odrGetReceipts(ctx context.Context, db ethdb.Database, config *params.Chain
}
func TestOdrAccountsLes2(t *testing.T) { testOdr(t, 2, 1, true, odrAccounts) }
+func TestOdrAccountsLes3(t *testing.T) { testOdr(t, 3, 1, true, odrAccounts) }
func odrAccounts(ctx context.Context, db ethdb.Database, config *params.ChainConfig, bc *core.BlockChain, lc *light.LightChain, bhash common.Hash) []byte {
dummyAddr := common.HexToAddress("1234567812345678123456781234567812345678")
@@ -103,6 +106,7 @@ func odrAccounts(ctx context.Context, db ethdb.Database, config *params.ChainCon
}
func TestOdrContractCallLes2(t *testing.T) { testOdr(t, 2, 2, true, odrContractCall) }
+func TestOdrContractCallLes3(t *testing.T) { testOdr(t, 3, 2, true, odrContractCall) }
type callmsg struct {
types.Message
@@ -152,6 +156,7 @@ func odrContractCall(ctx context.Context, db ethdb.Database, config *params.Chai
}
func TestOdrTxStatusLes2(t *testing.T) { testOdr(t, 2, 1, false, odrTxStatus) }
+func TestOdrTxStatusLes3(t *testing.T) { testOdr(t, 3, 1, false, odrTxStatus) }
func odrTxStatus(ctx context.Context, db ethdb.Database, config *params.ChainConfig, bc *core.BlockChain, lc *light.LightChain, bhash common.Hash) []byte {
var txs types.Transactions
@@ -178,21 +183,22 @@ func odrTxStatus(ctx context.Context, db ethdb.Database, config *params.ChainCon
// testOdr tests odr requests whose validation guaranteed by block headers.
func testOdr(t *testing.T, protocol int, expFail uint64, checkCached bool, fn odrTestFn) {
// Assemble the test environment
- server, client, tearDown := newClientServerEnv(t, 4, protocol, nil, true)
+ server, client, tearDown := newClientServerEnv(t, 4, protocol, nil, nil, 0, false, true)
defer tearDown()
- client.pm.synchronise(client.rPeer)
+
+ client.handler.synchronise(client.peer.peer)
test := func(expFail uint64) {
// Mark this as a helper to put the failures at the correct lines
t.Helper()
- for i := uint64(0); i <= server.pm.blockchain.CurrentHeader().Number.Uint64(); i++ {
+ for i := uint64(0); i <= server.handler.blockchain.CurrentHeader().Number.Uint64(); i++ {
bhash := rawdb.ReadCanonicalHash(server.db, i)
- b1 := fn(light.NoOdr, server.db, server.pm.chainConfig, server.pm.blockchain.(*core.BlockChain), nil, bhash)
+ b1 := fn(light.NoOdr, server.db, server.handler.server.chainConfig, server.handler.blockchain, nil, bhash)
ctx, cancel := context.WithTimeout(context.Background(), 200*time.Millisecond)
- defer cancel()
- b2 := fn(ctx, client.db, client.pm.chainConfig, nil, client.pm.blockchain.(*light.LightChain), bhash)
+ b2 := fn(ctx, client.db, client.handler.backend.chainConfig, nil, client.handler.backend.blockchain, bhash)
+ cancel()
eq := bytes.Equal(b1, b2)
exp := i < expFail
@@ -204,22 +210,22 @@ func testOdr(t *testing.T, protocol int, expFail uint64, checkCached bool, fn od
}
}
}
- // temporarily remove peer to test odr fails
+
// expect retrievals to fail (except genesis block) without a les peer
- client.peers.Unregister(client.rPeer.id)
- time.Sleep(time.Millisecond * 10) // ensure that all peerSetNotify callbacks are executed
+ client.handler.backend.peers.lock.Lock()
+ client.peer.peer.hasBlock = func(common.Hash, uint64, bool) bool { return false }
+ client.handler.backend.peers.lock.Unlock()
test(expFail)
// expect all retrievals to pass
- client.peers.Register(client.rPeer)
- time.Sleep(time.Millisecond * 10) // ensure that all peerSetNotify callbacks are executed
- client.peers.lock.Lock()
- client.rPeer.hasBlock = func(common.Hash, uint64, bool) bool { return true }
- client.peers.lock.Unlock()
+ client.handler.backend.peers.lock.Lock()
+ client.peer.peer.hasBlock = func(common.Hash, uint64, bool) bool { return true }
+ client.handler.backend.peers.lock.Unlock()
test(5)
+
+ // still expect all retrievals to pass, now data should be cached locally
if checkCached {
- // still expect all retrievals to pass, now data should be cached locally
- client.peers.Unregister(client.rPeer.id)
+ client.handler.backend.peers.Unregister(client.peer.peer.id)
time.Sleep(time.Millisecond * 10) // ensure that all peerSetNotify callbacks are executed
test(5)
}
diff --git a/les/peer.go b/les/peer.go
index bcd91cd835..edf3c7c85b 100644
--- a/les/peer.go
+++ b/les/peer.go
@@ -111,7 +111,7 @@ type peer struct {
fcServer *flowcontrol.ServerNode // nil if the peer is client only
fcParams flowcontrol.ServerParams
fcCosts requestCostTable
- balanceTracker *balanceTracker // set by clientPool.connect, used and removed by ProtocolManager.handle
+ balanceTracker *balanceTracker // set by clientPool.connect, used and removed by serverHandler.
trusted bool
onlyAnnounce bool
@@ -291,6 +291,11 @@ func (p *peer) updateCapacity(cap uint64) {
p.queueSend(func() { p.SendAnnounce(announceData{Update: kvList}) })
}
+func (p *peer) responseID() uint64 {
+ p.responseCount += 1
+ return p.responseCount
+}
+
func sendRequest(w p2p.MsgWriter, msgcode, reqID, cost uint64, data interface{}) error {
type req struct {
ReqID uint64
@@ -373,6 +378,7 @@ func (p *peer) HasBlock(hash common.Hash, number uint64, hasState bool) bool {
}
hasBlock := p.hasBlock
p.lock.RUnlock()
+
return head >= number && number >= since && (recent == 0 || number+recent+4 > head) && hasBlock != nil && hasBlock(hash, number, hasState)
}
@@ -571,6 +577,8 @@ func (p *peer) Handshake(td *big.Int, head common.Hash, headNum uint64, genesis
defer p.lock.Unlock()
var send keyValueList
+
+ // Add some basic handshake fields
send = send.add("protocolVersion", uint64(p.version))
send = send.add("networkId", p.network)
send = send.add("headTd", td)
@@ -578,7 +586,8 @@ func (p *peer) Handshake(td *big.Int, head common.Hash, headNum uint64, genesis
send = send.add("headNum", headNum)
send = send.add("genesisHash", genesis)
if server != nil {
- if !server.onlyAnnounce {
+ // Add some information which services server can offer.
+ if !server.config.UltraLightOnlyAnnounce {
send = send.add("serveHeaders", nil)
send = send.add("serveChainSince", uint64(0))
send = send.add("serveStateSince", uint64(0))
@@ -594,25 +603,28 @@ func (p *peer) Handshake(td *big.Int, head common.Hash, headNum uint64, genesis
}
send = send.add("flowControl/BL", server.defParams.BufLimit)
send = send.add("flowControl/MRR", server.defParams.MinRecharge)
+
var costList RequestCostList
- if server.costTracker != nil {
- costList = server.costTracker.makeCostList(server.costTracker.globalFactor())
+ if server.costTracker.testCostList != nil {
+ costList = server.costTracker.testCostList
} else {
- costList = testCostList(server.testCost)
+ costList = server.costTracker.makeCostList(server.costTracker.globalFactor())
}
send = send.add("flowControl/MRC", costList)
p.fcCosts = costList.decode(ProtocolLengths[uint(p.version)])
p.fcParams = server.defParams
- if server.protocolManager != nil && server.protocolManager.reg != nil && server.protocolManager.reg.isRunning() {
- cp, height := server.protocolManager.reg.stableCheckpoint()
+ // Add advertised checkpoint and register block height which
+ // client can verify the checkpoint validity.
+ if server.oracle != nil && server.oracle.isRunning() {
+ cp, height := server.oracle.stableCheckpoint()
if cp != nil {
send = send.add("checkpoint/value", cp)
send = send.add("checkpoint/registerHeight", height)
}
}
} else {
- //on client node
+ // Add some client-specific handshake fields
p.announceType = announceTypeSimple
if p.trusted {
p.announceType = announceTypeSigned
@@ -663,17 +675,12 @@ func (p *peer) Handshake(td *big.Int, head common.Hash, headNum uint64, genesis
}
if server != nil {
- // until we have a proper peer connectivity API, allow LES connection to other servers
- /*if recv.get("serveStateSince", nil) == nil {
- return errResp(ErrUselessPeer, "wanted client, got server")
- }*/
if recv.get("announceType", &p.announceType) != nil {
- //set default announceType on server side
+ // set default announceType on server side
p.announceType = announceTypeSimple
}
p.fcClient = flowcontrol.NewClientNode(server.fcManager, server.defParams)
} else {
- //mark OnlyAnnounce server if "serveHeaders", "serveChainSince", "serveStateSince" or "txRelay" fields don't exist
if recv.get("serveChainSince", &p.chainSince) != nil {
p.onlyAnnounce = true
}
@@ -730,15 +737,10 @@ func (p *peer) updateFlowControl(update keyValueMap) {
if p.fcServer == nil {
return
}
- params := p.fcParams
- updateParams := false
- if update.get("flowControl/BL", ¶ms.BufLimit) == nil {
- updateParams = true
- }
- if update.get("flowControl/MRR", ¶ms.MinRecharge) == nil {
- updateParams = true
- }
- if updateParams {
+ // If any of the flow control params is nil, refuse to update.
+ var params flowcontrol.ServerParams
+ if update.get("flowControl/BL", ¶ms.BufLimit) == nil && update.get("flowControl/MRR", ¶ms.MinRecharge) == nil {
+ // todo can light client set a minimal acceptable flow control params?
p.fcParams = params
p.fcServer.UpdateParams(params)
}
diff --git a/les/peer_test.go b/les/peer_test.go
index ba8a79fe29..db74a052c1 100644
--- a/les/peer_test.go
+++ b/les/peer_test.go
@@ -18,47 +18,54 @@ package les
import (
"math/big"
+ "net"
"testing"
"github.com/ethereum/go-ethereum/common"
"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/eth"
"github.com/ethereum/go-ethereum/les/flowcontrol"
"github.com/ethereum/go-ethereum/p2p"
+ "github.com/ethereum/go-ethereum/p2p/enode"
"github.com/ethereum/go-ethereum/rlp"
)
-const (
- test_networkid = 10
- protocol_version = lpv2
-)
+const protocolVersion = lpv2
var (
- hash = common.HexToHash("some string")
- genesis = common.HexToHash("genesis hash")
+ hash = common.HexToHash("deadbeef")
+ genesis = common.HexToHash("cafebabe")
headNum = uint64(1234)
td = big.NewInt(123)
)
-//ulc connects to trusted peer and send announceType=announceTypeSigned
+func newNodeID(t *testing.T) *enode.Node {
+ key, err := crypto.GenerateKey()
+ if err != nil {
+ t.Fatal("generate key err:", err)
+ }
+ return enode.NewV4(&key.PublicKey, net.IP{}, 35000, 35000)
+}
+
+// ulc connects to trusted peer and send announceType=announceTypeSigned
func TestPeerHandshakeSetAnnounceTypeToAnnounceTypeSignedForTrustedPeer(t *testing.T) {
id := newNodeID(t).ID()
- //peer to connect(on ulc side)
+ // peer to connect(on ulc side)
p := peer{
Peer: p2p.NewPeer(id, "test peer", []p2p.Cap{}),
- version: protocol_version,
+ version: protocolVersion,
trusted: true,
rw: &rwStub{
WriteHook: func(recvList keyValueList) {
- //checking that ulc sends to peer allowedRequests=onlyAnnounceRequests and announceType = announceTypeSigned
recv, _ := recvList.decode()
var reqType uint64
-
err := recv.get("announceType", &reqType)
if err != nil {
t.Fatal(err)
}
-
if reqType != announceTypeSigned {
t.Fatal("Expected announceTypeSigned")
}
@@ -71,18 +78,15 @@ func TestPeerHandshakeSetAnnounceTypeToAnnounceTypeSignedForTrustedPeer(t *testi
l = l.add("flowControl/BL", uint64(0))
l = l.add("flowControl/MRR", uint64(0))
l = l.add("flowControl/MRC", testCostList(0))
-
return l
},
},
- network: test_networkid,
+ network: NetworkId,
}
-
err := p.Handshake(td, hash, headNum, genesis, nil)
if err != nil {
t.Fatalf("Handshake error: %s", err)
}
-
if p.announceType != announceTypeSigned {
t.Fatal("Incorrect announceType")
}
@@ -92,18 +96,16 @@ func TestPeerHandshakeAnnounceTypeSignedForTrustedPeersPeerNotInTrusted(t *testi
id := newNodeID(t).ID()
p := peer{
Peer: p2p.NewPeer(id, "test peer", []p2p.Cap{}),
- version: protocol_version,
+ version: protocolVersion,
rw: &rwStub{
WriteHook: func(recvList keyValueList) {
- //checking that ulc sends to peer allowedRequests=noRequests and announceType != announceTypeSigned
+ // checking that ulc sends to peer allowedRequests=noRequests and announceType != announceTypeSigned
recv, _ := recvList.decode()
var reqType uint64
-
err := recv.get("announceType", &reqType)
if err != nil {
t.Fatal(err)
}
-
if reqType == announceTypeSigned {
t.Fatal("Expected not announceTypeSigned")
}
@@ -116,13 +118,11 @@ func TestPeerHandshakeAnnounceTypeSignedForTrustedPeersPeerNotInTrusted(t *testi
l = l.add("flowControl/BL", uint64(0))
l = l.add("flowControl/MRR", uint64(0))
l = l.add("flowControl/MRC", testCostList(0))
-
return l
},
},
- network: test_networkid,
+ network: NetworkId,
}
-
err := p.Handshake(td, hash, headNum, genesis, nil)
if err != nil {
t.Fatal(err)
@@ -139,16 +139,15 @@ func TestPeerHandshakeDefaultAllRequests(t *testing.T) {
p := peer{
Peer: p2p.NewPeer(id, "test peer", []p2p.Cap{}),
- version: protocol_version,
+ version: protocolVersion,
rw: &rwStub{
ReadHook: func(l keyValueList) keyValueList {
l = l.add("announceType", uint64(announceTypeSigned))
l = l.add("allowedRequests", uint64(0))
-
return l
},
},
- network: test_networkid,
+ network: NetworkId,
}
err := p.Handshake(td, hash, headNum, genesis, s)
@@ -165,15 +164,14 @@ func TestPeerHandshakeServerSendOnlyAnnounceRequestsHeaders(t *testing.T) {
id := newNodeID(t).ID()
s := generateLesServer()
- s.onlyAnnounce = true
+ s.config.UltraLightOnlyAnnounce = true
p := peer{
Peer: p2p.NewPeer(id, "test peer", []p2p.Cap{}),
- version: protocol_version,
+ version: protocolVersion,
rw: &rwStub{
ReadHook: func(l keyValueList) keyValueList {
l = l.add("announceType", uint64(announceTypeSigned))
-
return l
},
WriteHook: func(l keyValueList) {
@@ -187,7 +185,7 @@ func TestPeerHandshakeServerSendOnlyAnnounceRequestsHeaders(t *testing.T) {
}
},
},
- network: test_networkid,
+ network: NetworkId,
}
err := p.Handshake(td, hash, headNum, genesis, s)
@@ -200,7 +198,7 @@ func TestPeerHandshakeClientReceiveOnlyAnnounceRequestsHeaders(t *testing.T) {
p := peer{
Peer: p2p.NewPeer(id, "test peer", []p2p.Cap{}),
- version: protocol_version,
+ version: protocolVersion,
rw: &rwStub{
ReadHook: func(l keyValueList) keyValueList {
l = l.add("flowControl/BL", uint64(0))
@@ -212,7 +210,7 @@ func TestPeerHandshakeClientReceiveOnlyAnnounceRequestsHeaders(t *testing.T) {
return l
},
},
- network: test_networkid,
+ network: NetworkId,
trusted: true,
}
@@ -231,19 +229,17 @@ func TestPeerHandshakeClientReturnErrorOnUselessPeer(t *testing.T) {
p := peer{
Peer: p2p.NewPeer(id, "test peer", []p2p.Cap{}),
- version: protocol_version,
+ version: protocolVersion,
rw: &rwStub{
ReadHook: func(l keyValueList) keyValueList {
l = l.add("flowControl/BL", uint64(0))
l = l.add("flowControl/MRR", uint64(0))
l = l.add("flowControl/MRC", RequestCostList{})
-
l = l.add("announceType", uint64(announceTypeSigned))
-
return l
},
},
- network: test_networkid,
+ network: NetworkId,
}
err := p.Handshake(td, hash, headNum, genesis, nil)
@@ -254,12 +250,16 @@ func TestPeerHandshakeClientReturnErrorOnUselessPeer(t *testing.T) {
func generateLesServer() *LesServer {
s := &LesServer{
+ lesCommons: lesCommons{
+ config: ð.Config{UltraLightOnlyAnnounce: true},
+ },
defParams: flowcontrol.ServerParams{
BufLimit: uint64(300000000),
MinRecharge: uint64(50000),
},
fcManager: flowcontrol.NewClientManager(nil, &mclock.System{}),
}
+ s.costTracker, _ = newCostTracker(rawdb.NewMemoryDatabase(), s.config)
return s
}
@@ -270,8 +270,8 @@ type rwStub struct {
func (s *rwStub) ReadMsg() (p2p.Msg, error) {
payload := keyValueList{}
- payload = payload.add("protocolVersion", uint64(protocol_version))
- payload = payload.add("networkId", uint64(test_networkid))
+ payload = payload.add("protocolVersion", uint64(protocolVersion))
+ payload = payload.add("networkId", uint64(NetworkId))
payload = payload.add("headTd", td)
payload = payload.add("headHash", hash)
payload = payload.add("headNum", headNum)
@@ -280,12 +280,10 @@ func (s *rwStub) ReadMsg() (p2p.Msg, error) {
if s.ReadHook != nil {
payload = s.ReadHook(payload)
}
-
size, p, err := rlp.EncodeToReader(payload)
if err != nil {
return p2p.Msg{}, err
}
-
return p2p.Msg{
Size: uint32(size),
Payload: p,
@@ -297,10 +295,8 @@ func (s *rwStub) WriteMsg(m p2p.Msg) error {
if err := m.Decode(&recvList); err != nil {
return err
}
-
if s.WriteHook != nil {
s.WriteHook(recvList)
}
-
return nil
}
diff --git a/les/request_test.go b/les/request_test.go
index 42a63c351e..69b57ca317 100644
--- a/les/request_test.go
+++ b/les/request_test.go
@@ -37,18 +37,21 @@ func secAddr(addr common.Address) []byte {
type accessTestFn func(db ethdb.Database, bhash common.Hash, number uint64) light.OdrRequest
func TestBlockAccessLes2(t *testing.T) { testAccess(t, 2, tfBlockAccess) }
+func TestBlockAccessLes3(t *testing.T) { testAccess(t, 3, tfBlockAccess) }
func tfBlockAccess(db ethdb.Database, bhash common.Hash, number uint64) light.OdrRequest {
return &light.BlockRequest{Hash: bhash, Number: number}
}
func TestReceiptsAccessLes2(t *testing.T) { testAccess(t, 2, tfReceiptsAccess) }
+func TestReceiptsAccessLes3(t *testing.T) { testAccess(t, 3, tfReceiptsAccess) }
func tfReceiptsAccess(db ethdb.Database, bhash common.Hash, number uint64) light.OdrRequest {
return &light.ReceiptsRequest{Hash: bhash, Number: number}
}
func TestTrieEntryAccessLes2(t *testing.T) { testAccess(t, 2, tfTrieEntryAccess) }
+func TestTrieEntryAccessLes3(t *testing.T) { testAccess(t, 3, tfTrieEntryAccess) }
func tfTrieEntryAccess(db ethdb.Database, bhash common.Hash, number uint64) light.OdrRequest {
if number := rawdb.ReadHeaderNumber(db, bhash); number != nil {
@@ -58,6 +61,7 @@ func tfTrieEntryAccess(db ethdb.Database, bhash common.Hash, number uint64) ligh
}
func TestCodeAccessLes2(t *testing.T) { testAccess(t, 2, tfCodeAccess) }
+func TestCodeAccessLes3(t *testing.T) { testAccess(t, 3, tfCodeAccess) }
func tfCodeAccess(db ethdb.Database, bhash common.Hash, num uint64) light.OdrRequest {
number := rawdb.ReadHeaderNumber(db, bhash)
@@ -75,17 +79,18 @@ func tfCodeAccess(db ethdb.Database, bhash common.Hash, num uint64) light.OdrReq
func testAccess(t *testing.T, protocol int, fn accessTestFn) {
// Assemble the test environment
- server, client, tearDown := newClientServerEnv(t, 4, protocol, nil, true)
+ server, client, tearDown := newClientServerEnv(t, 4, protocol, nil, nil, 0, false, true)
defer tearDown()
- client.pm.synchronise(client.rPeer)
+ client.handler.synchronise(client.peer.peer)
test := func(expFail uint64) {
- for i := uint64(0); i <= server.pm.blockchain.CurrentHeader().Number.Uint64(); i++ {
+ for i := uint64(0); i <= server.handler.blockchain.CurrentHeader().Number.Uint64(); i++ {
bhash := rawdb.ReadCanonicalHash(server.db, i)
if req := fn(client.db, bhash, i); req != nil {
ctx, cancel := context.WithTimeout(context.Background(), 200*time.Millisecond)
- defer cancel()
- err := client.pm.odr.Retrieve(ctx, req)
+ err := client.handler.backend.odr.Retrieve(ctx, req)
+ cancel()
+
got := err == nil
exp := i < expFail
if exp && !got {
@@ -97,18 +102,5 @@ func testAccess(t *testing.T, protocol int, fn accessTestFn) {
}
}
}
-
- // temporarily remove peer to test odr fails
- client.peers.Unregister(client.rPeer.id)
- time.Sleep(time.Millisecond * 10) // ensure that all peerSetNotify callbacks are executed
- // expect retrievals to fail (except genesis block) without a les peer
- test(0)
-
- client.peers.Register(client.rPeer)
- time.Sleep(time.Millisecond * 10) // ensure that all peerSetNotify callbacks are executed
- client.rPeer.lock.Lock()
- client.rPeer.hasBlock = func(common.Hash, uint64, bool) bool { return true }
- client.rPeer.lock.Unlock()
- // expect all retrievals to pass
test(5)
}
diff --git a/les/server.go b/les/server.go
index 97e82a42b2..416cabd136 100644
--- a/les/server.go
+++ b/les/server.go
@@ -18,15 +18,11 @@ package les
import (
"crypto/ecdsa"
- "sync"
"time"
"github.com/ethereum/go-ethereum/accounts/abi/bind"
- "github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/common/mclock"
"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/eth"
"github.com/ethereum/go-ethereum/les/flowcontrol"
"github.com/ethereum/go-ethereum/light"
@@ -38,80 +34,94 @@ import (
"github.com/ethereum/go-ethereum/rpc"
)
-const bufLimitRatio = 6000 // fixed bufLimit/MRR ratio
-
type LesServer struct {
lesCommons
archiveMode bool // Flag whether the ethereum node runs in archive mode.
+ handler *serverHandler
+ lesTopics []discv5.Topic
+ privateKey *ecdsa.PrivateKey
- fcManager *flowcontrol.ClientManager // nil if our node is client only
+ // Flow control and capacity management
+ fcManager *flowcontrol.ClientManager
costTracker *costTracker
- testCost uint64
defParams flowcontrol.ServerParams
- lesTopics []discv5.Topic
- privateKey *ecdsa.PrivateKey
- quitSync chan struct{}
- onlyAnnounce bool
-
- thcNormal, thcBlockProcessing int // serving thread count for normal operation and block processing mode
+ servingQueue *servingQueue
+ clientPool *clientPool
- maxPeers int
- minCapacity, maxCapacity, freeClientCap uint64
- clientPool *clientPool
+ freeCapacity uint64 // The minimal client capacity used for free client.
+ threadsIdle int // Request serving threads count when system is idle.
+ threadsBusy int // Request serving threads count when system is busy(block insertion).
}
func NewLesServer(e *eth.Ethereum, config *eth.Config) (*LesServer, error) {
+ // Collect les protocol version information supported by local node.
lesTopics := make([]discv5.Topic, len(AdvertiseProtocolVersions))
for i, pv := range AdvertiseProtocolVersions {
lesTopics[i] = lesTopic(e.BlockChain().Genesis().Hash(), pv)
}
- quitSync := make(chan struct{})
+ // Calculate the number of threads used to service the light client
+ // requests based on the user-specified value.
+ threads := config.LightServ * 4 / 100
+ if threads < 4 {
+ threads = 4
+ }
srv := &LesServer{
lesCommons: lesCommons{
+ genesis: e.BlockChain().Genesis().Hash(),
config: config,
+ chainConfig: e.BlockChain().Config(),
iConfig: light.DefaultServerIndexerConfig,
chainDb: e.ChainDb(),
+ peers: newPeerSet(),
+ chainReader: e.BlockChain(),
chtIndexer: light.NewChtIndexer(e.ChainDb(), nil, params.CHTFrequency, params.HelperTrieProcessConfirmations),
bloomTrieIndexer: light.NewBloomTrieIndexer(e.ChainDb(), nil, params.BloomBitsBlocks, params.BloomTrieFrequency),
+ closeCh: make(chan struct{}),
},
archiveMode: e.ArchiveMode(),
- quitSync: quitSync,
lesTopics: lesTopics,
- onlyAnnounce: config.UltraLightOnlyAnnounce,
+ fcManager: flowcontrol.NewClientManager(nil, &mclock.System{}),
+ servingQueue: newServingQueue(int64(time.Millisecond*10), float64(config.LightServ)/100),
+ threadsBusy: config.LightServ/100 + 1,
+ threadsIdle: threads,
}
- srv.costTracker, srv.minCapacity = newCostTracker(e.ChainDb(), config)
+ srv.handler = newServerHandler(srv, e.BlockChain(), e.ChainDb(), e.TxPool(), e.Synced)
+ srv.costTracker, srv.freeCapacity = newCostTracker(e.ChainDb(), config)
- logger := log.New()
- srv.thcNormal = config.LightServ * 4 / 100
- if srv.thcNormal < 4 {
- srv.thcNormal = 4
+ // Set up checkpoint oracle.
+ oracle := config.CheckpointOracle
+ if oracle == nil {
+ oracle = params.CheckpointOracles[e.BlockChain().Genesis().Hash()]
}
- srv.thcBlockProcessing = config.LightServ/100 + 1
- srv.fcManager = flowcontrol.NewClientManager(nil, &mclock.System{})
+ srv.oracle = newCheckpointOracle(oracle, srv.localCheckpoint)
+
+ // Initialize server capacity management fields.
+ srv.defParams = flowcontrol.ServerParams{
+ BufLimit: srv.freeCapacity * bufLimitRatio,
+ MinRecharge: srv.freeCapacity,
+ }
+ // LES flow control tries to more or less guarantee the possibility for the
+ // clients to send a certain amount of requests at any time and get a quick
+ // response. Most of the clients want this guarantee but don't actually need
+ // to send requests most of the time. Our goal is to serve as many clients as
+ // possible while the actually used server capacity does not exceed the limits
+ totalRecharge := srv.costTracker.totalRecharge()
+ maxCapacity := srv.freeCapacity * uint64(srv.config.LightPeers)
+ if totalRecharge > maxCapacity {
+ maxCapacity = totalRecharge
+ }
+ srv.fcManager.SetCapacityLimits(srv.freeCapacity, maxCapacity, srv.freeCapacity*2)
+
+ srv.clientPool = newClientPool(srv.chainDb, srv.freeCapacity, 10000, mclock.System{}, func(id enode.ID) { go srv.peers.Unregister(peerIdToString(id)) })
+ srv.peers.notify(srv.clientPool)
checkpoint := srv.latestLocalCheckpoint()
if !checkpoint.Empty() {
- logger.Info("Loaded latest checkpoint", "section", checkpoint.SectionIndex, "head", checkpoint.SectionHead,
+ log.Info("Loaded latest checkpoint", "section", checkpoint.SectionIndex, "head", checkpoint.SectionHead,
"chtroot", checkpoint.CHTRoot, "bloomroot", checkpoint.BloomRoot)
}
-
srv.chtIndexer.Start(e.BlockChain())
-
- oracle := config.CheckpointOracle
- if oracle == nil {
- oracle = params.CheckpointOracles[e.BlockChain().Genesis().Hash()]
- }
- registrar := newCheckpointOracle(oracle, srv.getLocalCheckpoint)
- // TODO(rjl493456442) Checkpoint is useless for les server, separate handler for client and server.
- pm, err := NewProtocolManager(e.BlockChain().Config(), nil, light.DefaultServerIndexerConfig, config.UltraLightServers, config.UltraLightFraction, false, config.NetworkId, e.EventMux(), newPeerSet(), e.BlockChain(), e.TxPool(), e.ChainDb(), nil, nil, registrar, quitSync, new(sync.WaitGroup), e.Synced)
- if err != nil {
- return nil, err
- }
- srv.protocolManager = pm
- pm.servingQueue = newServingQueue(int64(time.Millisecond*10), float64(config.LightServ)/100)
- pm.server = srv
-
return srv, nil
}
@@ -120,102 +130,29 @@ func (s *LesServer) APIs() []rpc.API {
{
Namespace: "les",
Version: "1.0",
- Service: NewPrivateLightAPI(&s.lesCommons, s.protocolManager.reg),
+ Service: NewPrivateLightAPI(&s.lesCommons),
Public: false,
},
}
}
-// startEventLoop starts an event handler loop that updates the recharge curve of
-// the client manager and adjusts the client pool's size according to the total
-// capacity updates coming from the client manager
-func (s *LesServer) startEventLoop() {
- s.protocolManager.wg.Add(1)
-
- var (
- processing, procLast bool
- procStarted time.Time
- )
- blockProcFeed := make(chan bool, 100)
- s.protocolManager.blockchain.(*core.BlockChain).SubscribeBlockProcessingEvent(blockProcFeed)
- totalRechargeCh := make(chan uint64, 100)
- totalRecharge := s.costTracker.subscribeTotalRecharge(totalRechargeCh)
- totalCapacityCh := make(chan uint64, 100)
- updateRecharge := func() {
- if processing {
- if !procLast {
- procStarted = time.Now()
- }
- s.protocolManager.servingQueue.setThreads(s.thcBlockProcessing)
- s.fcManager.SetRechargeCurve(flowcontrol.PieceWiseLinear{{0, 0}, {totalRecharge, totalRecharge}})
- } else {
- if procLast {
- blockProcessingTimer.UpdateSince(procStarted)
- }
- s.protocolManager.servingQueue.setThreads(s.thcNormal)
- s.fcManager.SetRechargeCurve(flowcontrol.PieceWiseLinear{{0, 0}, {totalRecharge / 16, totalRecharge / 2}, {totalRecharge / 2, totalRecharge / 2}, {totalRecharge, totalRecharge}})
- }
- procLast = processing
- }
- updateRecharge()
- totalCapacity := s.fcManager.SubscribeTotalCapacity(totalCapacityCh)
- s.clientPool.setLimits(s.maxPeers, totalCapacity)
-
- var maxFreePeers uint64
- go func() {
- for {
- select {
- case processing = <-blockProcFeed:
- updateRecharge()
- case totalRecharge = <-totalRechargeCh:
- updateRecharge()
- case totalCapacity = <-totalCapacityCh:
- totalCapacityGauge.Update(int64(totalCapacity))
- newFreePeers := totalCapacity / s.freeClientCap
- if newFreePeers < maxFreePeers && newFreePeers < uint64(s.maxPeers) {
- log.Warn("Reduced total capacity", "maxFreePeers", newFreePeers)
- }
- maxFreePeers = newFreePeers
- s.clientPool.setLimits(s.maxPeers, totalCapacity)
- case <-s.protocolManager.quitSync:
- s.protocolManager.wg.Done()
- return
- }
- }
- }()
-}
-
func (s *LesServer) Protocols() []p2p.Protocol {
- return s.makeProtocols(ServerProtocolVersions)
+ return s.makeProtocols(ServerProtocolVersions, s.handler.runPeer, func(id enode.ID) interface{} {
+ if p := s.peers.Peer(peerIdToString(id)); p != nil {
+ return p.Info()
+ }
+ return nil
+ })
}
// Start starts the LES server
func (s *LesServer) Start(srvr *p2p.Server) {
- s.maxPeers = s.config.LightPeers
- totalRecharge := s.costTracker.totalRecharge()
- if s.maxPeers > 0 {
- s.freeClientCap = s.minCapacity //totalRecharge / uint64(s.maxPeers)
- if s.freeClientCap < s.minCapacity {
- s.freeClientCap = s.minCapacity
- }
- if s.freeClientCap > 0 {
- s.defParams = flowcontrol.ServerParams{
- BufLimit: s.freeClientCap * bufLimitRatio,
- MinRecharge: s.freeClientCap,
- }
- }
- }
+ s.privateKey = srvr.PrivateKey
+ s.handler.start()
+
+ s.wg.Add(1)
+ go s.capacityManagement()
- s.maxCapacity = s.freeClientCap * uint64(s.maxPeers)
- if totalRecharge > s.maxCapacity {
- s.maxCapacity = totalRecharge
- }
- s.fcManager.SetCapacityLimits(s.freeClientCap, s.maxCapacity, s.freeClientCap*2)
- s.clientPool = newClientPool(s.chainDb, s.freeClientCap, 10000, mclock.System{}, func(id enode.ID) { go s.protocolManager.removePeer(peerIdToString(id)) })
- s.clientPool.setPriceFactors(priceFactors{0, 1, 1}, priceFactors{0, 1, 1})
- s.protocolManager.peers.notify(s.clientPool)
- s.startEventLoop()
- s.protocolManager.Start(s.config.LightPeers)
if srvr.DiscV5 != nil {
for _, topic := range s.lesTopics {
topic := topic
@@ -224,12 +161,32 @@ func (s *LesServer) Start(srvr *p2p.Server) {
logger.Info("Starting topic registration")
defer logger.Info("Terminated topic registration")
- srvr.DiscV5.RegisterTopic(topic, s.quitSync)
+ srvr.DiscV5.RegisterTopic(topic, s.closeCh)
}()
}
}
- s.privateKey = srvr.PrivateKey
- s.protocolManager.blockLoop()
+}
+
+// Stop stops the LES service
+func (s *LesServer) Stop() {
+ close(s.closeCh)
+
+ // Disconnect existing sessions.
+ // This also closes the gate for any new registrations on the peer set.
+ // sessions which are already established but not added to pm.peers yet
+ // will exit when they try to register.
+ s.peers.Close()
+
+ s.fcManager.Stop()
+ s.clientPool.stop()
+ s.costTracker.stop()
+ s.handler.stop()
+ s.servingQueue.stop()
+
+ // Note, bloom trie indexer is closed by parent bloombits indexer.
+ s.chtIndexer.Close()
+ s.wg.Wait()
+ log.Info("Les server stopped")
}
func (s *LesServer) SetBloomBitsIndexer(bloomIndexer *core.ChainIndexer) {
@@ -238,78 +195,67 @@ func (s *LesServer) SetBloomBitsIndexer(bloomIndexer *core.ChainIndexer) {
// SetClient sets the rpc client and starts running checkpoint contract if it is not yet watched.
func (s *LesServer) SetContractBackend(backend bind.ContractBackend) {
- if s.protocolManager.reg != nil {
- s.protocolManager.reg.start(backend)
+ if s.oracle == nil {
+ return
}
+ s.oracle.start(backend)
}
-// Stop stops the LES service
-func (s *LesServer) Stop() {
- s.fcManager.Stop()
- s.chtIndexer.Close()
- // bloom trie indexer is closed by parent bloombits indexer
- go func() {
- <-s.protocolManager.noMorePeers
- }()
- s.clientPool.stop()
- s.costTracker.stop()
- s.protocolManager.Stop()
-}
+// capacityManagement starts an event handler loop that updates the recharge curve of
+// the client manager and adjusts the client pool's size according to the total
+// capacity updates coming from the client manager
+func (s *LesServer) capacityManagement() {
+ defer s.wg.Done()
-// todo(rjl493456442) separate client and server implementation.
-func (pm *ProtocolManager) blockLoop() {
- pm.wg.Add(1)
- headCh := make(chan core.ChainHeadEvent, 10)
- headSub := pm.blockchain.SubscribeChainHeadEvent(headCh)
- go func() {
- var lastHead *types.Header
- lastBroadcastTd := common.Big0
- for {
- select {
- case ev := <-headCh:
- peers := pm.peers.AllPeers()
- if len(peers) > 0 {
- header := ev.Block.Header()
- hash := header.Hash()
- number := header.Number.Uint64()
- td := rawdb.ReadTd(pm.chainDb, hash, number)
- if td != nil && td.Cmp(lastBroadcastTd) > 0 {
- var reorg uint64
- if lastHead != nil {
- reorg = lastHead.Number.Uint64() - rawdb.FindCommonAncestor(pm.chainDb, header, lastHead).Number.Uint64()
- }
- lastHead = header
- lastBroadcastTd = td
+ processCh := make(chan bool, 100)
+ sub := s.handler.blockchain.SubscribeBlockProcessingEvent(processCh)
+ defer sub.Unsubscribe()
- log.Debug("Announcing block to peers", "number", number, "hash", hash, "td", td, "reorg", reorg)
+ totalRechargeCh := make(chan uint64, 100)
+ totalRecharge := s.costTracker.subscribeTotalRecharge(totalRechargeCh)
- announce := announceData{Hash: hash, Number: number, Td: td, ReorgDepth: reorg}
- var (
- signed bool
- signedAnnounce announceData
- )
+ totalCapacityCh := make(chan uint64, 100)
+ totalCapacity := s.fcManager.SubscribeTotalCapacity(totalCapacityCh)
+ s.clientPool.setLimits(s.config.LightPeers, totalCapacity)
- for _, p := range peers {
- p := p
- switch p.announceType {
- case announceTypeSimple:
- p.queueSend(func() { p.SendAnnounce(announce) })
- case announceTypeSigned:
- if !signed {
- signedAnnounce = announce
- signedAnnounce.sign(pm.server.privateKey)
- signed = true
- }
- p.queueSend(func() { p.SendAnnounce(signedAnnounce) })
- }
- }
- }
- }
- case <-pm.quitSync:
- headSub.Unsubscribe()
- pm.wg.Done()
- return
+ var (
+ busy bool
+ freePeers uint64
+ blockProcess mclock.AbsTime
+ )
+ updateRecharge := func() {
+ if busy {
+ s.servingQueue.setThreads(s.threadsBusy)
+ s.fcManager.SetRechargeCurve(flowcontrol.PieceWiseLinear{{0, 0}, {totalRecharge, totalRecharge}})
+ } else {
+ s.servingQueue.setThreads(s.threadsIdle)
+ s.fcManager.SetRechargeCurve(flowcontrol.PieceWiseLinear{{0, 0}, {totalRecharge / 10, totalRecharge}, {totalRecharge, totalRecharge}})
+ }
+ }
+ updateRecharge()
+
+ for {
+ select {
+ case busy = <-processCh:
+ if busy {
+ blockProcess = mclock.Now()
+ } else {
+ blockProcessingTimer.Update(time.Duration(mclock.Now() - blockProcess))
}
+ updateRecharge()
+ case totalRecharge = <-totalRechargeCh:
+ totalRechargeGauge.Update(int64(totalRecharge))
+ updateRecharge()
+ case totalCapacity = <-totalCapacityCh:
+ totalCapacityGauge.Update(int64(totalCapacity))
+ newFreePeers := totalCapacity / s.freeCapacity
+ if newFreePeers < freePeers && newFreePeers < uint64(s.config.LightPeers) {
+ log.Warn("Reduced free peer connections", "from", freePeers, "to", newFreePeers)
+ }
+ freePeers = newFreePeers
+ s.clientPool.setLimits(s.config.LightPeers, totalCapacity)
+ case <-s.closeCh:
+ return
}
- }()
+ }
}
diff --git a/les/server_handler.go b/les/server_handler.go
new file mode 100644
index 0000000000..af9c077bc1
--- /dev/null
+++ b/les/server_handler.go
@@ -0,0 +1,921 @@
+// Copyright 2019 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 (
+ "encoding/binary"
+ "encoding/json"
+ "errors"
+ "sync"
+ "sync/atomic"
+ "time"
+
+ "github.com/ethereum/go-ethereum/common"
+ "github.com/ethereum/go-ethereum/common/mclock"
+ "github.com/ethereum/go-ethereum/core"
+ "github.com/ethereum/go-ethereum/core/rawdb"
+ "github.com/ethereum/go-ethereum/core/state"
+ "github.com/ethereum/go-ethereum/core/types"
+ "github.com/ethereum/go-ethereum/ethdb"
+ "github.com/ethereum/go-ethereum/light"
+ "github.com/ethereum/go-ethereum/log"
+ "github.com/ethereum/go-ethereum/metrics"
+ "github.com/ethereum/go-ethereum/p2p"
+ "github.com/ethereum/go-ethereum/rlp"
+ "github.com/ethereum/go-ethereum/trie"
+)
+
+const (
+ softResponseLimit = 2 * 1024 * 1024 // Target maximum size of returned blocks, headers or node data.
+ estHeaderRlpSize = 500 // Approximate size of an RLP encoded block header
+ ethVersion = 63 // equivalent eth version for the downloader
+
+ MaxHeaderFetch = 192 // Amount of block headers to be fetched per retrieval request
+ MaxBodyFetch = 32 // Amount of block bodies to be fetched per retrieval request
+ MaxReceiptFetch = 128 // Amount of transaction receipts to allow fetching per request
+ MaxCodeFetch = 64 // Amount of contract codes to allow fetching per request
+ MaxProofsFetch = 64 // Amount of merkle proofs to be fetched per retrieval request
+ MaxHelperTrieProofsFetch = 64 // Amount of helper tries to be fetched per retrieval request
+ MaxTxSend = 64 // Amount of transactions to be send per request
+ MaxTxStatus = 256 // Amount of transactions to queried per request
+)
+
+var errTooManyInvalidRequest = errors.New("too many invalid requests made")
+
+// serverHandler is responsible for serving light client and process
+// all incoming light requests.
+type serverHandler struct {
+ blockchain *core.BlockChain
+ chainDb ethdb.Database
+ txpool *core.TxPool
+ server *LesServer
+
+ closeCh chan struct{} // Channel used to exit all background routines of handler.
+ wg sync.WaitGroup // WaitGroup used to track all background routines of handler.
+ synced func() bool // Callback function used to determine whether local node is synced.
+
+ // Testing fields
+ addTxsSync bool
+}
+
+func newServerHandler(server *LesServer, blockchain *core.BlockChain, chainDb ethdb.Database, txpool *core.TxPool, synced func() bool) *serverHandler {
+ handler := &serverHandler{
+ server: server,
+ blockchain: blockchain,
+ chainDb: chainDb,
+ txpool: txpool,
+ closeCh: make(chan struct{}),
+ synced: synced,
+ }
+ return handler
+}
+
+// start starts the server handler.
+func (h *serverHandler) start() {
+ h.wg.Add(1)
+ go h.broadcastHeaders()
+}
+
+// stop stops the server handler.
+func (h *serverHandler) stop() {
+ close(h.closeCh)
+ h.wg.Wait()
+}
+
+// runPeer is the p2p protocol run function for the given version.
+func (h *serverHandler) runPeer(version uint, p *p2p.Peer, rw p2p.MsgReadWriter) error {
+ peer := newPeer(int(version), h.server.config.NetworkId, false, p, newMeteredMsgWriter(rw, int(version)))
+ h.wg.Add(1)
+ defer h.wg.Done()
+ return h.handle(peer)
+}
+
+func (h *serverHandler) handle(p *peer) error {
+ // Reject light clients if server is not synced.
+ if !h.synced() {
+ return p2p.DiscRequested
+ }
+ p.Log().Debug("Light Ethereum peer connected", "name", p.Name())
+
+ // Execute the LES handshake
+ var (
+ head = h.blockchain.CurrentHeader()
+ hash = head.Hash()
+ number = head.Number.Uint64()
+ td = h.blockchain.GetTd(hash, number)
+ )
+ if err := p.Handshake(td, hash, number, h.blockchain.Genesis().Hash(), h.server); err != nil {
+ p.Log().Debug("Light Ethereum handshake failed", "err", err)
+ return err
+ }
+ defer p.fcClient.Disconnect()
+
+ // Register the peer locally
+ if err := h.server.peers.Register(p); err != nil {
+ p.Log().Error("Light Ethereum peer registration failed", "err", err)
+ return err
+ }
+ clientConnectionGauge.Update(int64(h.server.peers.Len()))
+
+ // add dummy balance tracker for tests
+ if p.balanceTracker == nil {
+ p.balanceTracker = &balanceTracker{}
+ p.balanceTracker.init(&mclock.System{}, 1)
+ }
+
+ connectedAt := mclock.Now()
+ defer func() {
+ p.balanceTracker = nil
+ h.server.peers.Unregister(p.id)
+ clientConnectionGauge.Update(int64(h.server.peers.Len()))
+ connectionTimer.Update(time.Duration(mclock.Now() - connectedAt))
+ }()
+
+ // Spawn a main loop to handle all incoming messages.
+ for {
+ select {
+ case err := <-p.errCh:
+ p.Log().Debug("Failed to send light ethereum response", "err", err)
+ return err
+ default:
+ }
+ if err := h.handleMsg(p); err != nil {
+ p.Log().Debug("Light Ethereum message handling failed", "err", err)
+ return err
+ }
+ }
+}
+
+// handleMsg is invoked whenever an inbound message is received from a remote
+// peer. The remote connection is torn down upon returning any error.
+func (h *serverHandler) handleMsg(p *peer) error {
+ // Read the next message from the remote peer, and ensure it's fully consumed
+ msg, err := p.rw.ReadMsg()
+ if err != nil {
+ return err
+ }
+ p.Log().Trace("Light Ethereum message arrived", "code", msg.Code, "bytes", msg.Size)
+
+ // Discard large message which exceeds the limitation.
+ if msg.Size > ProtocolMaxMsgSize {
+ clientErrorMeter.Mark(1)
+ return errResp(ErrMsgTooLarge, "%v > %v", msg.Size, ProtocolMaxMsgSize)
+ }
+ defer msg.Discard()
+
+ var (
+ maxCost uint64
+ task *servingTask
+ )
+ p.responseCount++
+ responseCount := p.responseCount
+ // accept returns an indicator whether the request can be served.
+ // If so, deduct the max cost from the flow control buffer.
+ accept := func(reqID, reqCnt, maxCnt uint64) bool {
+ // Short circuit if the peer is already frozen or the request is invalid.
+ inSizeCost := h.server.costTracker.realCost(0, msg.Size, 0)
+ if p.isFrozen() || reqCnt == 0 || reqCnt > maxCnt {
+ p.fcClient.OneTimeCost(inSizeCost)
+ return false
+ }
+ // Prepaid max cost units before request been serving.
+ maxCost = p.fcCosts.getMaxCost(msg.Code, reqCnt)
+ accepted, bufShort, priority := p.fcClient.AcceptRequest(reqID, responseCount, maxCost)
+ if !accepted {
+ p.freezeClient()
+ p.Log().Error("Request came too early", "remaining", common.PrettyDuration(time.Duration(bufShort*1000000/p.fcParams.MinRecharge)))
+ p.fcClient.OneTimeCost(inSizeCost)
+ return false
+ }
+ // Create a multi-stage task, estimate the time it takes for the task to
+ // execute, and cache it in the request service queue.
+ factor := h.server.costTracker.globalFactor()
+ if factor < 0.001 {
+ factor = 1
+ p.Log().Error("Invalid global cost factor", "factor", factor)
+ }
+ maxTime := uint64(float64(maxCost) / factor)
+ task = h.server.servingQueue.newTask(p, maxTime, priority)
+ if task.start() {
+ return true
+ }
+ p.fcClient.RequestProcessed(reqID, responseCount, maxCost, inSizeCost)
+ return false
+ }
+ // sendResponse sends back the response and updates the flow control statistic.
+ sendResponse := func(reqID, amount uint64, reply *reply, servingTime uint64) {
+ p.responseLock.Lock()
+ defer p.responseLock.Unlock()
+
+ // Short circuit if the client is already frozen.
+ if p.isFrozen() {
+ realCost := h.server.costTracker.realCost(servingTime, msg.Size, 0)
+ p.fcClient.RequestProcessed(reqID, responseCount, maxCost, realCost)
+ return
+ }
+ // Positive correction buffer value with real cost.
+ var replySize uint32
+ if reply != nil {
+ replySize = reply.size()
+ }
+ var realCost uint64
+ if h.server.costTracker.testing {
+ realCost = maxCost // Assign a fake cost for testing purpose
+ } else {
+ realCost = h.server.costTracker.realCost(servingTime, msg.Size, replySize)
+ }
+ bv := p.fcClient.RequestProcessed(reqID, responseCount, maxCost, realCost)
+ if amount != 0 {
+ // Feed cost tracker request serving statistic.
+ h.server.costTracker.updateStats(msg.Code, amount, servingTime, realCost)
+ // Reduce priority "balance" for the specific peer.
+ p.balanceTracker.requestCost(realCost)
+ }
+ if reply != nil {
+ p.queueSend(func() {
+ if err := reply.send(bv); err != nil {
+ select {
+ case p.errCh <- err:
+ default:
+ }
+ }
+ })
+ }
+ }
+ switch msg.Code {
+ case GetBlockHeadersMsg:
+ p.Log().Trace("Received block header request")
+ if metrics.EnabledExpensive {
+ miscInHeaderPacketsMeter.Mark(1)
+ miscInHeaderTrafficMeter.Mark(int64(msg.Size))
+ }
+ var req struct {
+ ReqID uint64
+ Query getBlockHeadersData
+ }
+ if err := msg.Decode(&req); err != nil {
+ clientErrorMeter.Mark(1)
+ return errResp(ErrDecode, "%v: %v", msg, err)
+ }
+ query := req.Query
+ if accept(req.ReqID, query.Amount, MaxHeaderFetch) {
+ go func() {
+ hashMode := query.Origin.Hash != (common.Hash{})
+ first := true
+ maxNonCanonical := uint64(100)
+
+ // Gather headers until the fetch or network limits is reached
+ var (
+ bytes common.StorageSize
+ headers []*types.Header
+ unknown bool
+ )
+ for !unknown && len(headers) < int(query.Amount) && bytes < softResponseLimit {
+ if !first && !task.waitOrStop() {
+ sendResponse(req.ReqID, 0, nil, task.servingTime)
+ return
+ }
+ // Retrieve the next header satisfying the query
+ var origin *types.Header
+ if hashMode {
+ if first {
+ origin = h.blockchain.GetHeaderByHash(query.Origin.Hash)
+ if origin != nil {
+ query.Origin.Number = origin.Number.Uint64()
+ }
+ } else {
+ origin = h.blockchain.GetHeader(query.Origin.Hash, query.Origin.Number)
+ }
+ } else {
+ origin = h.blockchain.GetHeaderByNumber(query.Origin.Number)
+ }
+ if origin == nil {
+ atomic.AddUint32(&p.invalidCount, 1)
+ break
+ }
+ headers = append(headers, origin)
+ bytes += estHeaderRlpSize
+
+ // Advance to the next header of the query
+ switch {
+ case hashMode && query.Reverse:
+ // Hash based traversal towards the genesis block
+ ancestor := query.Skip + 1
+ if ancestor == 0 {
+ unknown = true
+ } else {
+ query.Origin.Hash, query.Origin.Number = h.blockchain.GetAncestor(query.Origin.Hash, query.Origin.Number, ancestor, &maxNonCanonical)
+ unknown = query.Origin.Hash == common.Hash{}
+ }
+ case hashMode && !query.Reverse:
+ // Hash based traversal towards the leaf block
+ var (
+ current = origin.Number.Uint64()
+ next = current + query.Skip + 1
+ )
+ if next <= current {
+ infos, _ := json.MarshalIndent(p.Peer.Info(), "", " ")
+ p.Log().Warn("GetBlockHeaders skip overflow attack", "current", current, "skip", query.Skip, "next", next, "attacker", infos)
+ unknown = true
+ } else {
+ if header := h.blockchain.GetHeaderByNumber(next); header != nil {
+ nextHash := header.Hash()
+ expOldHash, _ := h.blockchain.GetAncestor(nextHash, next, query.Skip+1, &maxNonCanonical)
+ if expOldHash == query.Origin.Hash {
+ query.Origin.Hash, query.Origin.Number = nextHash, next
+ } else {
+ unknown = true
+ }
+ } else {
+ unknown = true
+ }
+ }
+ case query.Reverse:
+ // Number based traversal towards the genesis block
+ if query.Origin.Number >= query.Skip+1 {
+ query.Origin.Number -= query.Skip + 1
+ } else {
+ unknown = true
+ }
+
+ case !query.Reverse:
+ // Number based traversal towards the leaf block
+ query.Origin.Number += query.Skip + 1
+ }
+ first = false
+ }
+ reply := p.ReplyBlockHeaders(req.ReqID, headers)
+ sendResponse(req.ReqID, query.Amount, p.ReplyBlockHeaders(req.ReqID, headers), task.done())
+ if metrics.EnabledExpensive {
+ miscOutHeaderPacketsMeter.Mark(1)
+ miscOutHeaderTrafficMeter.Mark(int64(reply.size()))
+ }
+ }()
+ }
+
+ case GetBlockBodiesMsg:
+ p.Log().Trace("Received block bodies request")
+ if metrics.EnabledExpensive {
+ miscInBodyPacketsMeter.Mark(1)
+ miscInBodyTrafficMeter.Mark(int64(msg.Size))
+ }
+ var req struct {
+ ReqID uint64
+ Hashes []common.Hash
+ }
+ if err := msg.Decode(&req); err != nil {
+ clientErrorMeter.Mark(1)
+ return errResp(ErrDecode, "msg %v: %v", msg, err)
+ }
+ var (
+ bytes int
+ bodies []rlp.RawValue
+ )
+ reqCnt := len(req.Hashes)
+ if accept(req.ReqID, uint64(reqCnt), MaxBodyFetch) {
+ go func() {
+ for i, hash := range req.Hashes {
+ if i != 0 && !task.waitOrStop() {
+ sendResponse(req.ReqID, 0, nil, task.servingTime)
+ return
+ }
+ if bytes >= softResponseLimit {
+ break
+ }
+ body := h.blockchain.GetBodyRLP(hash)
+ if body == nil {
+ atomic.AddUint32(&p.invalidCount, 1)
+ continue
+ }
+ bodies = append(bodies, body)
+ bytes += len(body)
+ }
+ reply := p.ReplyBlockBodiesRLP(req.ReqID, bodies)
+ sendResponse(req.ReqID, uint64(reqCnt), reply, task.done())
+ if metrics.EnabledExpensive {
+ miscOutBodyPacketsMeter.Mark(1)
+ miscOutBodyTrafficMeter.Mark(int64(reply.size()))
+ }
+ }()
+ }
+
+ case GetCodeMsg:
+ p.Log().Trace("Received code request")
+ if metrics.EnabledExpensive {
+ miscInCodePacketsMeter.Mark(1)
+ miscInCodeTrafficMeter.Mark(int64(msg.Size))
+ }
+ var req struct {
+ ReqID uint64
+ Reqs []CodeReq
+ }
+ if err := msg.Decode(&req); err != nil {
+ clientErrorMeter.Mark(1)
+ return errResp(ErrDecode, "msg %v: %v", msg, err)
+ }
+ var (
+ bytes int
+ data [][]byte
+ )
+ reqCnt := len(req.Reqs)
+ if accept(req.ReqID, uint64(reqCnt), MaxCodeFetch) {
+ go func() {
+ for i, request := range req.Reqs {
+ if i != 0 && !task.waitOrStop() {
+ sendResponse(req.ReqID, 0, nil, task.servingTime)
+ return
+ }
+ // Look up the root hash belonging to the request
+ header := h.blockchain.GetHeaderByHash(request.BHash)
+ if header == nil {
+ p.Log().Warn("Failed to retrieve associate header for code", "hash", request.BHash)
+ atomic.AddUint32(&p.invalidCount, 1)
+ continue
+ }
+ // Refuse to search stale state data in the database since looking for
+ // a non-exist key is kind of expensive.
+ local := h.blockchain.CurrentHeader().Number.Uint64()
+ if !h.server.archiveMode && header.Number.Uint64()+core.TriesInMemory <= local {
+ p.Log().Debug("Reject stale code request", "number", header.Number.Uint64(), "head", local)
+ atomic.AddUint32(&p.invalidCount, 1)
+ continue
+ }
+ triedb := h.blockchain.StateCache().TrieDB()
+
+ account, err := h.getAccount(triedb, header.Root, common.BytesToHash(request.AccKey))
+ if err != nil {
+ p.Log().Warn("Failed to retrieve account for code", "block", header.Number, "hash", header.Hash(), "account", common.BytesToHash(request.AccKey), "err", err)
+ atomic.AddUint32(&p.invalidCount, 1)
+ continue
+ }
+ code, err := triedb.Node(common.BytesToHash(account.CodeHash))
+ if err != nil {
+ p.Log().Warn("Failed to retrieve account code", "block", header.Number, "hash", header.Hash(), "account", common.BytesToHash(request.AccKey), "codehash", common.BytesToHash(account.CodeHash), "err", err)
+ continue
+ }
+ // Accumulate the code and abort if enough data was retrieved
+ data = append(data, code)
+ if bytes += len(code); bytes >= softResponseLimit {
+ break
+ }
+ }
+ reply := p.ReplyCode(req.ReqID, data)
+ sendResponse(req.ReqID, uint64(reqCnt), reply, task.done())
+ if metrics.EnabledExpensive {
+ miscOutCodePacketsMeter.Mark(1)
+ miscOutCodeTrafficMeter.Mark(int64(reply.size()))
+ }
+ }()
+ }
+
+ case GetReceiptsMsg:
+ p.Log().Trace("Received receipts request")
+ if metrics.EnabledExpensive {
+ miscInReceiptPacketsMeter.Mark(1)
+ miscInReceiptTrafficMeter.Mark(int64(msg.Size))
+ }
+ var req struct {
+ ReqID uint64
+ Hashes []common.Hash
+ }
+ if err := msg.Decode(&req); err != nil {
+ clientErrorMeter.Mark(1)
+ return errResp(ErrDecode, "msg %v: %v", msg, err)
+ }
+ var (
+ bytes int
+ receipts []rlp.RawValue
+ )
+ reqCnt := len(req.Hashes)
+ if accept(req.ReqID, uint64(reqCnt), MaxReceiptFetch) {
+ go func() {
+ for i, hash := range req.Hashes {
+ if i != 0 && !task.waitOrStop() {
+ sendResponse(req.ReqID, 0, nil, task.servingTime)
+ return
+ }
+ if bytes >= softResponseLimit {
+ break
+ }
+ // Retrieve the requested block's receipts, skipping if unknown to us
+ results := h.blockchain.GetReceiptsByHash(hash)
+ if results == nil {
+ if header := h.blockchain.GetHeaderByHash(hash); header == nil || header.ReceiptHash != types.EmptyRootHash {
+ atomic.AddUint32(&p.invalidCount, 1)
+ continue
+ }
+ }
+ // If known, encode and queue for response packet
+ if encoded, err := rlp.EncodeToBytes(results); err != nil {
+ log.Error("Failed to encode receipt", "err", err)
+ } else {
+ receipts = append(receipts, encoded)
+ bytes += len(encoded)
+ }
+ }
+ reply := p.ReplyReceiptsRLP(req.ReqID, receipts)
+ sendResponse(req.ReqID, uint64(reqCnt), reply, task.done())
+ if metrics.EnabledExpensive {
+ miscOutReceiptPacketsMeter.Mark(1)
+ miscOutReceiptTrafficMeter.Mark(int64(reply.size()))
+ }
+ }()
+ }
+
+ case GetProofsV2Msg:
+ p.Log().Trace("Received les/2 proofs request")
+ if metrics.EnabledExpensive {
+ miscInTrieProofPacketsMeter.Mark(1)
+ miscInTrieProofTrafficMeter.Mark(int64(msg.Size))
+ }
+ var req struct {
+ ReqID uint64
+ Reqs []ProofReq
+ }
+ if err := msg.Decode(&req); err != nil {
+ clientErrorMeter.Mark(1)
+ return errResp(ErrDecode, "msg %v: %v", msg, err)
+ }
+ // Gather state data until the fetch or network limits is reached
+ var (
+ lastBHash common.Hash
+ root common.Hash
+ )
+ reqCnt := len(req.Reqs)
+ if accept(req.ReqID, uint64(reqCnt), MaxProofsFetch) {
+ go func() {
+ nodes := light.NewNodeSet()
+
+ for i, request := range req.Reqs {
+ if i != 0 && !task.waitOrStop() {
+ sendResponse(req.ReqID, 0, nil, task.servingTime)
+ return
+ }
+ // Look up the root hash belonging to the request
+ var (
+ number *uint64
+ header *types.Header
+ trie state.Trie
+ )
+ if request.BHash != lastBHash {
+ root, lastBHash = common.Hash{}, request.BHash
+
+ if header = h.blockchain.GetHeaderByHash(request.BHash); header == nil {
+ p.Log().Warn("Failed to retrieve header for proof", "block", *number, "hash", request.BHash)
+ atomic.AddUint32(&p.invalidCount, 1)
+ continue
+ }
+ // Refuse to search stale state data in the database since looking for
+ // a non-exist key is kind of expensive.
+ local := h.blockchain.CurrentHeader().Number.Uint64()
+ if !h.server.archiveMode && header.Number.Uint64()+core.TriesInMemory <= local {
+ p.Log().Debug("Reject stale trie request", "number", header.Number.Uint64(), "head", local)
+ atomic.AddUint32(&p.invalidCount, 1)
+ continue
+ }
+ root = header.Root
+ }
+ // If a header lookup failed (non existent), ignore subsequent requests for the same header
+ if root == (common.Hash{}) {
+ atomic.AddUint32(&p.invalidCount, 1)
+ continue
+ }
+ // Open the account or storage trie for the request
+ statedb := h.blockchain.StateCache()
+
+ switch len(request.AccKey) {
+ case 0:
+ // No account key specified, open an account trie
+ trie, err = statedb.OpenTrie(root)
+ if trie == nil || err != nil {
+ p.Log().Warn("Failed to open storage trie for proof", "block", header.Number, "hash", header.Hash(), "root", root, "err", err)
+ continue
+ }
+ default:
+ // Account key specified, open a storage trie
+ account, err := h.getAccount(statedb.TrieDB(), root, common.BytesToHash(request.AccKey))
+ if err != nil {
+ p.Log().Warn("Failed to retrieve account for proof", "block", header.Number, "hash", header.Hash(), "account", common.BytesToHash(request.AccKey), "err", err)
+ atomic.AddUint32(&p.invalidCount, 1)
+ continue
+ }
+ trie, err = statedb.OpenStorageTrie(common.BytesToHash(request.AccKey), account.Root)
+ if trie == nil || err != nil {
+ p.Log().Warn("Failed to open storage trie for proof", "block", header.Number, "hash", header.Hash(), "account", common.BytesToHash(request.AccKey), "root", account.Root, "err", err)
+ continue
+ }
+ }
+ // Prove the user's request from the account or stroage trie
+ if err := trie.Prove(request.Key, request.FromLevel, nodes); err != nil {
+ p.Log().Warn("Failed to prove state request", "block", header.Number, "hash", header.Hash(), "err", err)
+ continue
+ }
+ if nodes.DataSize() >= softResponseLimit {
+ break
+ }
+ }
+ reply := p.ReplyProofsV2(req.ReqID, nodes.NodeList())
+ sendResponse(req.ReqID, uint64(reqCnt), reply, task.done())
+ if metrics.EnabledExpensive {
+ miscOutTrieProofPacketsMeter.Mark(1)
+ miscOutTrieProofTrafficMeter.Mark(int64(reply.size()))
+ }
+ }()
+ }
+
+ case GetHelperTrieProofsMsg:
+ p.Log().Trace("Received helper trie proof request")
+ if metrics.EnabledExpensive {
+ miscInHelperTriePacketsMeter.Mark(1)
+ miscInHelperTrieTrafficMeter.Mark(int64(msg.Size))
+ }
+ var req struct {
+ ReqID uint64
+ Reqs []HelperTrieReq
+ }
+ if err := msg.Decode(&req); err != nil {
+ clientErrorMeter.Mark(1)
+ return errResp(ErrDecode, "msg %v: %v", msg, err)
+ }
+ // Gather state data until the fetch or network limits is reached
+ var (
+ auxBytes int
+ auxData [][]byte
+ )
+ reqCnt := len(req.Reqs)
+ if accept(req.ReqID, uint64(reqCnt), MaxHelperTrieProofsFetch) {
+ go func() {
+ var (
+ lastIdx uint64
+ lastType uint
+ root common.Hash
+ auxTrie *trie.Trie
+ )
+ nodes := light.NewNodeSet()
+ for i, request := range req.Reqs {
+ if i != 0 && !task.waitOrStop() {
+ sendResponse(req.ReqID, 0, nil, task.servingTime)
+ return
+ }
+ if auxTrie == nil || request.Type != lastType || request.TrieIdx != lastIdx {
+ auxTrie, lastType, lastIdx = nil, request.Type, request.TrieIdx
+
+ var prefix string
+ if root, prefix = h.getHelperTrie(request.Type, request.TrieIdx); root != (common.Hash{}) {
+ auxTrie, _ = trie.New(root, trie.NewDatabase(rawdb.NewTable(h.chainDb, prefix)))
+ }
+ }
+ if request.AuxReq == auxRoot {
+ var data []byte
+ if root != (common.Hash{}) {
+ data = root[:]
+ }
+ auxData = append(auxData, data)
+ auxBytes += len(data)
+ } else {
+ if auxTrie != nil {
+ auxTrie.Prove(request.Key, request.FromLevel, nodes)
+ }
+ if request.AuxReq != 0 {
+ data := h.getAuxiliaryHeaders(request)
+ auxData = append(auxData, data)
+ auxBytes += len(data)
+ }
+ }
+ if nodes.DataSize()+auxBytes >= softResponseLimit {
+ break
+ }
+ }
+ reply := p.ReplyHelperTrieProofs(req.ReqID, HelperTrieResps{Proofs: nodes.NodeList(), AuxData: auxData})
+ sendResponse(req.ReqID, uint64(reqCnt), reply, task.done())
+ if metrics.EnabledExpensive {
+ miscOutHelperTriePacketsMeter.Mark(1)
+ miscOutHelperTrieTrafficMeter.Mark(int64(reply.size()))
+ }
+ }()
+ }
+
+ case SendTxV2Msg:
+ p.Log().Trace("Received new transactions")
+ if metrics.EnabledExpensive {
+ miscInTxsPacketsMeter.Mark(1)
+ miscInTxsTrafficMeter.Mark(int64(msg.Size))
+ }
+ var req struct {
+ ReqID uint64
+ Txs []*types.Transaction
+ }
+ if err := msg.Decode(&req); err != nil {
+ clientErrorMeter.Mark(1)
+ return errResp(ErrDecode, "msg %v: %v", msg, err)
+ }
+ reqCnt := len(req.Txs)
+ if accept(req.ReqID, uint64(reqCnt), MaxTxSend) {
+ go func() {
+ stats := make([]light.TxStatus, len(req.Txs))
+ for i, tx := range req.Txs {
+ if i != 0 && !task.waitOrStop() {
+ return
+ }
+ hash := tx.Hash()
+ stats[i] = h.txStatus(hash)
+ if stats[i].Status == core.TxStatusUnknown {
+ addFn := h.txpool.AddRemotes
+ // Add txs synchronously for testing purpose
+ if h.addTxsSync {
+ addFn = h.txpool.AddRemotesSync
+ }
+ if errs := addFn([]*types.Transaction{tx}); errs[0] != nil {
+ stats[i].Error = errs[0].Error()
+ continue
+ }
+ stats[i] = h.txStatus(hash)
+ }
+ }
+ reply := p.ReplyTxStatus(req.ReqID, stats)
+ sendResponse(req.ReqID, uint64(reqCnt), reply, task.done())
+ if metrics.EnabledExpensive {
+ miscOutTxsPacketsMeter.Mark(1)
+ miscOutTxsTrafficMeter.Mark(int64(reply.size()))
+ }
+ }()
+ }
+
+ case GetTxStatusMsg:
+ p.Log().Trace("Received transaction status query request")
+ if metrics.EnabledExpensive {
+ miscInTxStatusPacketsMeter.Mark(1)
+ miscInTxStatusTrafficMeter.Mark(int64(msg.Size))
+ }
+ var req struct {
+ ReqID uint64
+ Hashes []common.Hash
+ }
+ if err := msg.Decode(&req); err != nil {
+ clientErrorMeter.Mark(1)
+ return errResp(ErrDecode, "msg %v: %v", msg, err)
+ }
+ reqCnt := len(req.Hashes)
+ if accept(req.ReqID, uint64(reqCnt), MaxTxStatus) {
+ go func() {
+ stats := make([]light.TxStatus, len(req.Hashes))
+ for i, hash := range req.Hashes {
+ if i != 0 && !task.waitOrStop() {
+ sendResponse(req.ReqID, 0, nil, task.servingTime)
+ return
+ }
+ stats[i] = h.txStatus(hash)
+ }
+ reply := p.ReplyTxStatus(req.ReqID, stats)
+ sendResponse(req.ReqID, uint64(reqCnt), reply, task.done())
+ if metrics.EnabledExpensive {
+ miscOutTxStatusPacketsMeter.Mark(1)
+ miscOutTxStatusTrafficMeter.Mark(int64(reply.size()))
+ }
+ }()
+ }
+
+ default:
+ p.Log().Trace("Received invalid message", "code", msg.Code)
+ clientErrorMeter.Mark(1)
+ return errResp(ErrInvalidMsgCode, "%v", msg.Code)
+ }
+ // If the client has made too much invalid request(e.g. request a non-exist data),
+ // reject them to prevent SPAM attack.
+ if atomic.LoadUint32(&p.invalidCount) > maxRequestErrors {
+ clientErrorMeter.Mark(1)
+ return errTooManyInvalidRequest
+ }
+ return nil
+}
+
+// getAccount retrieves an account from the state based on root.
+func (h *serverHandler) getAccount(triedb *trie.Database, root, hash common.Hash) (state.Account, error) {
+ trie, err := trie.New(root, triedb)
+ if err != nil {
+ return state.Account{}, err
+ }
+ blob, err := trie.TryGet(hash[:])
+ if err != nil {
+ return state.Account{}, err
+ }
+ var account state.Account
+ if err = rlp.DecodeBytes(blob, &account); err != nil {
+ return state.Account{}, err
+ }
+ return account, nil
+}
+
+// getHelperTrie returns the post-processed trie root for the given trie ID and section index
+func (h *serverHandler) getHelperTrie(typ uint, index uint64) (common.Hash, string) {
+ switch typ {
+ case htCanonical:
+ sectionHead := rawdb.ReadCanonicalHash(h.chainDb, (index+1)*h.server.iConfig.ChtSize-1)
+ return light.GetChtRoot(h.chainDb, index, sectionHead), light.ChtTablePrefix
+ case htBloomBits:
+ sectionHead := rawdb.ReadCanonicalHash(h.chainDb, (index+1)*h.server.iConfig.BloomTrieSize-1)
+ return light.GetBloomTrieRoot(h.chainDb, index, sectionHead), light.BloomTrieTablePrefix
+ }
+ return common.Hash{}, ""
+}
+
+// getAuxiliaryHeaders returns requested auxiliary headers for the CHT request.
+func (h *serverHandler) getAuxiliaryHeaders(req HelperTrieReq) []byte {
+ if req.Type == htCanonical && req.AuxReq == auxHeader && len(req.Key) == 8 {
+ blockNum := binary.BigEndian.Uint64(req.Key)
+ hash := rawdb.ReadCanonicalHash(h.chainDb, blockNum)
+ return rawdb.ReadHeaderRLP(h.chainDb, hash, blockNum)
+ }
+ return nil
+}
+
+// txStatus returns the status of a specified transaction.
+func (h *serverHandler) txStatus(hash common.Hash) light.TxStatus {
+ var stat light.TxStatus
+ // Looking the transaction in txpool first.
+ stat.Status = h.txpool.Status([]common.Hash{hash})[0]
+
+ // If the transaction is unknown to the pool, try looking it up locally.
+ if stat.Status == core.TxStatusUnknown {
+ lookup := h.blockchain.GetTransactionLookup(hash)
+ if lookup != nil {
+ stat.Status = core.TxStatusIncluded
+ stat.Lookup = lookup
+ }
+ }
+ return stat
+}
+
+// broadcastHeaders broadcasts new block information to all connected light
+// clients. According to the agreement between client and server, server should
+// only broadcast new announcement if the total difficulty is higher than the
+// last one. Besides server will add the signature if client requires.
+func (h *serverHandler) broadcastHeaders() {
+ defer h.wg.Done()
+
+ headCh := make(chan core.ChainHeadEvent, 10)
+ headSub := h.blockchain.SubscribeChainHeadEvent(headCh)
+ defer headSub.Unsubscribe()
+
+ var (
+ lastHead *types.Header
+ lastTd = common.Big0
+ )
+ for {
+ select {
+ case ev := <-headCh:
+ peers := h.server.peers.AllPeers()
+ if len(peers) == 0 {
+ continue
+ }
+ header := ev.Block.Header()
+ hash, number := header.Hash(), header.Number.Uint64()
+ td := h.blockchain.GetTd(hash, number)
+ if td == nil || td.Cmp(lastTd) <= 0 {
+ continue
+ }
+ var reorg uint64
+ if lastHead != nil {
+ reorg = lastHead.Number.Uint64() - rawdb.FindCommonAncestor(h.chainDb, header, lastHead).Number.Uint64()
+ }
+ lastHead, lastTd = header, td
+
+ log.Debug("Announcing block to peers", "number", number, "hash", hash, "td", td, "reorg", reorg)
+ var (
+ signed bool
+ signedAnnounce announceData
+ )
+ announce := announceData{Hash: hash, Number: number, Td: td, ReorgDepth: reorg}
+ for _, p := range peers {
+ p := p
+ switch p.announceType {
+ case announceTypeSimple:
+ p.queueSend(func() { p.SendAnnounce(announce) })
+ case announceTypeSigned:
+ if !signed {
+ signedAnnounce = announce
+ signedAnnounce.sign(h.server.privateKey)
+ signed = true
+ }
+ p.queueSend(func() { p.SendAnnounce(signedAnnounce) })
+ }
+ }
+ case <-h.closeCh:
+ return
+ }
+ }
+}
diff --git a/les/serverpool.go b/les/serverpool.go
index 3e8cdee410..37621dc634 100644
--- a/les/serverpool.go
+++ b/les/serverpool.go
@@ -115,8 +115,6 @@ type serverPool struct {
db ethdb.Database
dbKey []byte
server *p2p.Server
- quit chan struct{}
- wg *sync.WaitGroup
connWg sync.WaitGroup
topic discv5.Topic
@@ -137,14 +135,15 @@ type serverPool struct {
connCh chan *connReq
disconnCh chan *disconnReq
registerCh chan *registerReq
+
+ closeCh chan struct{}
+ wg sync.WaitGroup
}
// newServerPool creates a new serverPool instance
-func newServerPool(db ethdb.Database, quit chan struct{}, wg *sync.WaitGroup, trustedNodes []string) *serverPool {
+func newServerPool(db ethdb.Database, ulcServers []string) *serverPool {
pool := &serverPool{
db: db,
- quit: quit,
- wg: wg,
entries: make(map[enode.ID]*poolEntry),
timeout: make(chan *poolEntry, 1),
adjustStats: make(chan poolStatAdjust, 100),
@@ -152,10 +151,11 @@ func newServerPool(db ethdb.Database, quit chan struct{}, wg *sync.WaitGroup, tr
connCh: make(chan *connReq),
disconnCh: make(chan *disconnReq),
registerCh: make(chan *registerReq),
+ closeCh: make(chan struct{}),
knownSelect: newWeightedRandomSelect(),
newSelect: newWeightedRandomSelect(),
fastDiscover: true,
- trustedNodes: parseTrustedNodes(trustedNodes),
+ trustedNodes: parseTrustedNodes(ulcServers),
}
pool.knownQueue = newPoolEntryQueue(maxKnownEntries, pool.removeEntry)
@@ -167,7 +167,6 @@ func (pool *serverPool) start(server *p2p.Server, topic discv5.Topic) {
pool.server = server
pool.topic = topic
pool.dbKey = append([]byte("serverPool/"), []byte(topic)...)
- pool.wg.Add(1)
pool.loadNodes()
pool.connectToTrustedNodes()
@@ -178,9 +177,15 @@ func (pool *serverPool) start(server *p2p.Server, topic discv5.Topic) {
go pool.discoverNodes()
}
pool.checkDial()
+ pool.wg.Add(1)
go pool.eventLoop()
}
+func (pool *serverPool) stop() {
+ close(pool.closeCh)
+ pool.wg.Wait()
+}
+
// discoverNodes wraps SearchTopic, converting result nodes to enode.Node.
func (pool *serverPool) discoverNodes() {
ch := make(chan *discv5.Node)
@@ -207,7 +212,7 @@ func (pool *serverPool) connect(p *peer, node *enode.Node) *poolEntry {
req := &connReq{p: p, node: node, result: make(chan *poolEntry, 1)}
select {
case pool.connCh <- req:
- case <-pool.quit:
+ case <-pool.closeCh:
return nil
}
return <-req.result
@@ -219,7 +224,7 @@ func (pool *serverPool) registered(entry *poolEntry) {
req := ®isterReq{entry: entry, done: make(chan struct{})}
select {
case pool.registerCh <- req:
- case <-pool.quit:
+ case <-pool.closeCh:
return
}
<-req.done
@@ -231,7 +236,7 @@ func (pool *serverPool) registered(entry *poolEntry) {
func (pool *serverPool) disconnect(entry *poolEntry) {
stopped := false
select {
- case <-pool.quit:
+ case <-pool.closeCh:
stopped = true
default:
}
@@ -278,6 +283,7 @@ func (pool *serverPool) adjustResponseTime(entry *poolEntry, time time.Duration,
// eventLoop handles pool events and mutex locking for all internal functions
func (pool *serverPool) eventLoop() {
+ defer pool.wg.Done()
lookupCnt := 0
var convTime mclock.AbsTime
if pool.discSetPeriod != nil {
@@ -361,7 +367,7 @@ func (pool *serverPool) eventLoop() {
case req := <-pool.connCh:
if pool.trustedNodes[req.p.ID()] != nil {
// ignore trusted nodes
- req.result <- nil
+ req.result <- &poolEntry{trusted: true}
} else {
// Handle peer connection requests.
entry := pool.entries[req.p.ID()]
@@ -389,6 +395,9 @@ func (pool *serverPool) eventLoop() {
}
case req := <-pool.registerCh:
+ if req.entry.trusted {
+ continue
+ }
// Handle peer registration requests.
entry := req.entry
entry.state = psRegistered
@@ -402,10 +411,13 @@ func (pool *serverPool) eventLoop() {
close(req.done)
case req := <-pool.disconnCh:
+ if req.entry.trusted {
+ continue
+ }
// Handle peer disconnection requests.
disconnect(req, req.stopped)
- case <-pool.quit:
+ case <-pool.closeCh:
if pool.discSetPeriod != nil {
close(pool.discSetPeriod)
}
@@ -421,7 +433,6 @@ func (pool *serverPool) eventLoop() {
disconnect(req, true)
}
pool.saveNodes()
- pool.wg.Done()
return
}
}
@@ -549,10 +560,10 @@ func (pool *serverPool) setRetryDial(entry *poolEntry) {
entry.delayedRetry = true
go func() {
select {
- case <-pool.quit:
+ case <-pool.closeCh:
case <-time.After(delay):
select {
- case <-pool.quit:
+ case <-pool.closeCh:
case pool.enableRetry <- entry:
}
}
@@ -618,10 +629,10 @@ func (pool *serverPool) dial(entry *poolEntry, knownSelected bool) {
go func() {
pool.server.AddPeer(entry.node)
select {
- case <-pool.quit:
+ case <-pool.closeCh:
case <-time.After(dialTimeout):
select {
- case <-pool.quit:
+ case <-pool.closeCh:
case pool.timeout <- entry:
}
}
@@ -662,14 +673,14 @@ type poolEntry struct {
lastConnected, dialed *poolEntryAddress
addrSelect weightedRandomSelect
- lastDiscovered mclock.AbsTime
- known, knownSelected bool
- connectStats, delayStats poolStats
- responseStats, timeoutStats poolStats
- state int
- regTime mclock.AbsTime
- queueIdx int
- removed bool
+ lastDiscovered mclock.AbsTime
+ known, knownSelected, trusted bool
+ connectStats, delayStats poolStats
+ responseStats, timeoutStats poolStats
+ state int
+ regTime mclock.AbsTime
+ queueIdx int
+ removed bool
delayedRetry bool
shortRetry int
diff --git a/les/sync.go b/les/sync.go
index 54fd81c2c2..693394464c 100644
--- a/les/sync.go
+++ b/les/sync.go
@@ -43,35 +43,6 @@ const (
checkpointSync
)
-// syncer is responsible for periodically synchronising with the network, both
-// downloading hashes and blocks as well as handling the announcement handler.
-func (pm *ProtocolManager) syncer() {
- // Start and ensure cleanup of sync mechanisms
- //pm.fetcher.Start()
- //defer pm.fetcher.Stop()
- defer pm.downloader.Terminate()
-
- // Wait for different events to fire synchronisation operations
- //forceSync := time.Tick(forceSyncCycle)
- for {
- select {
- case <-pm.newPeerCh:
- /* // Make sure we have peers to select from, then sync
- if pm.peers.Len() < minDesiredPeerCount {
- break
- }
- go pm.synchronise(pm.peers.BestPeer())
- */
- /*case <-forceSync:
- // Force a sync even if not enough peers are present
- go pm.synchronise(pm.peers.BestPeer())
- */
- case <-pm.noMorePeers:
- return
- }
- }
-}
-
// validateCheckpoint verifies the advertised checkpoint by peer is valid or not.
//
// Each network has several hard-coded checkpoint signer addresses. Only the
@@ -80,22 +51,22 @@ func (pm *ProtocolManager) syncer() {
// In addition to the checkpoint registered in the registrar contract, there are
// several legacy hardcoded checkpoints in our codebase. These checkpoints are
// also considered as valid.
-func (pm *ProtocolManager) validateCheckpoint(peer *peer) error {
+func (h *clientHandler) validateCheckpoint(peer *peer) error {
ctx, cancel := context.WithTimeout(context.Background(), time.Second*10)
defer cancel()
// Fetch the block header corresponding to the checkpoint registration.
cp := peer.checkpoint
- header, err := light.GetUntrustedHeaderByNumber(ctx, pm.odr, peer.checkpointNumber, peer.id)
+ header, err := light.GetUntrustedHeaderByNumber(ctx, h.backend.odr, peer.checkpointNumber, peer.id)
if err != nil {
return err
}
// Fetch block logs associated with the block header.
- logs, err := light.GetUntrustedBlockLogs(ctx, pm.odr, header)
+ logs, err := light.GetUntrustedBlockLogs(ctx, h.backend.odr, header)
if err != nil {
return err
}
- events := pm.reg.contract.LookupCheckpointEvents(logs, cp.SectionIndex, cp.Hash())
+ events := h.backend.oracle.contract.LookupCheckpointEvents(logs, cp.SectionIndex, cp.Hash())
if len(events) == 0 {
return errInvalidCheckpoint
}
@@ -107,7 +78,7 @@ func (pm *ProtocolManager) validateCheckpoint(peer *peer) error {
for _, event := range events {
signatures = append(signatures, append(event.R[:], append(event.S[:], event.V)...))
}
- valid, signers := pm.reg.verifySigners(index, hash, signatures)
+ valid, signers := h.backend.oracle.verifySigners(index, hash, signatures)
if !valid {
return errInvalidCheckpoint
}
@@ -116,14 +87,14 @@ func (pm *ProtocolManager) validateCheckpoint(peer *peer) error {
}
// synchronise tries to sync up our local chain with a remote peer.
-func (pm *ProtocolManager) synchronise(peer *peer) {
+func (h *clientHandler) synchronise(peer *peer) {
// Short circuit if the peer is nil.
if peer == nil {
return
}
// Make sure the peer's TD is higher than our own.
- latest := pm.blockchain.CurrentHeader()
- currentTd := rawdb.ReadTd(pm.chainDb, latest.Hash(), latest.Number.Uint64())
+ latest := h.backend.blockchain.CurrentHeader()
+ currentTd := rawdb.ReadTd(h.backend.chainDb, latest.Hash(), latest.Number.Uint64())
if currentTd != nil && peer.headBlockInfo().Td.Cmp(currentTd) < 0 {
return
}
@@ -140,8 +111,8 @@ func (pm *ProtocolManager) synchronise(peer *peer) {
// => Use provided checkpoint
var checkpoint = &peer.checkpoint
var hardcoded bool
- if pm.checkpoint != nil && pm.checkpoint.SectionIndex >= peer.checkpoint.SectionIndex {
- checkpoint = pm.checkpoint // Use the hardcoded one.
+ if h.checkpoint != nil && h.checkpoint.SectionIndex >= peer.checkpoint.SectionIndex {
+ checkpoint = h.checkpoint // Use the hardcoded one.
hardcoded = true
}
// Determine whether we should run checkpoint syncing or normal light syncing.
@@ -157,34 +128,34 @@ func (pm *ProtocolManager) synchronise(peer *peer) {
case checkpoint.Empty():
mode = lightSync
log.Debug("Disable checkpoint syncing", "reason", "empty checkpoint")
- case latest.Number.Uint64() >= (checkpoint.SectionIndex+1)*pm.iConfig.ChtSize-1:
+ case latest.Number.Uint64() >= (checkpoint.SectionIndex+1)*h.backend.iConfig.ChtSize-1:
mode = lightSync
log.Debug("Disable checkpoint syncing", "reason", "local chain beyond the checkpoint")
case hardcoded:
mode = legacyCheckpointSync
log.Debug("Disable checkpoint syncing", "reason", "checkpoint is hardcoded")
- case pm.reg == nil || !pm.reg.isRunning():
+ case h.backend.oracle == nil || !h.backend.oracle.isRunning():
mode = legacyCheckpointSync
log.Debug("Disable checkpoint syncing", "reason", "checkpoint syncing is not activated")
}
// Notify testing framework if syncing has completed(for testing purpose).
defer func() {
- if pm.reg != nil && pm.reg.syncDoneHook != nil {
- pm.reg.syncDoneHook()
+ if h.backend.oracle != nil && h.backend.oracle.syncDoneHook != nil {
+ h.backend.oracle.syncDoneHook()
}
}()
start := time.Now()
if mode == checkpointSync || mode == legacyCheckpointSync {
// Validate the advertised checkpoint
if mode == legacyCheckpointSync {
- checkpoint = pm.checkpoint
+ checkpoint = h.checkpoint
} else if mode == checkpointSync {
- if err := pm.validateCheckpoint(peer); err != nil {
+ if err := h.validateCheckpoint(peer); err != nil {
log.Debug("Failed to validate checkpoint", "reason", err)
- pm.removePeer(peer.id)
+ h.removePeer(peer.id)
return
}
- pm.blockchain.(*light.LightChain).AddTrustedCheckpoint(checkpoint)
+ h.backend.blockchain.AddTrustedCheckpoint(checkpoint)
}
log.Debug("Checkpoint syncing start", "peer", peer.id, "checkpoint", checkpoint.SectionIndex)
@@ -197,14 +168,14 @@ func (pm *ProtocolManager) synchronise(peer *peer) {
// of the latest epoch covered by checkpoint.
ctx, cancel := context.WithTimeout(context.Background(), time.Second*5)
defer cancel()
- if !checkpoint.Empty() && !pm.blockchain.(*light.LightChain).SyncCheckpoint(ctx, checkpoint) {
+ if !checkpoint.Empty() && !h.backend.blockchain.SyncCheckpoint(ctx, checkpoint) {
log.Debug("Sync checkpoint failed")
- pm.removePeer(peer.id)
+ h.removePeer(peer.id)
return
}
}
// Fetch the remaining block headers based on the current chain header.
- if err := pm.downloader.Synchronise(peer.id, peer.Head(), peer.Td(), downloader.LightSync); err != nil {
+ if err := h.downloader.Synchronise(peer.id, peer.Head(), peer.Td(), downloader.LightSync); err != nil {
log.Debug("Synchronise failed", "reason", err)
return
}
diff --git a/les/sync_test.go b/les/sync_test.go
index 3a75d6856d..63833c1ab4 100644
--- a/les/sync_test.go
+++ b/les/sync_test.go
@@ -57,7 +57,7 @@ func testCheckpointSyncing(t *testing.T, protocol int, syncMode int) {
}
}
// Generate 512+4 blocks (totally 1 CHT sections)
- server, client, tearDown := newClientServerEnv(t, int(config.ChtSize+config.ChtConfirms), protocol, waitIndexers, false)
+ server, client, tearDown := newClientServerEnv(t, int(config.ChtSize+config.ChtConfirms), protocol, waitIndexers, nil, 0, false, false)
defer tearDown()
expected := config.ChtSize + config.ChtConfirms
@@ -74,8 +74,8 @@ func testCheckpointSyncing(t *testing.T, protocol int, syncMode int) {
}
if syncMode == 1 {
// Register the assembled checkpoint as hardcoded one.
- client.pm.checkpoint = cp
- client.pm.blockchain.(*light.LightChain).AddTrustedCheckpoint(cp)
+ client.handler.checkpoint = cp
+ client.handler.backend.blockchain.AddTrustedCheckpoint(cp)
} else {
// Register the assembled checkpoint into oracle.
header := server.backend.Blockchain().CurrentHeader()
@@ -83,14 +83,14 @@ func testCheckpointSyncing(t *testing.T, protocol int, syncMode int) {
data := append([]byte{0x19, 0x00}, append(registrarAddr.Bytes(), append([]byte{0, 0, 0, 0, 0, 0, 0, 0}, cp.Hash().Bytes()...)...)...)
sig, _ := crypto.Sign(crypto.Keccak256(data), signerKey)
sig[64] += 27 // Transform V from 0/1 to 27/28 according to the yellow paper
- if _, err := server.pm.reg.contract.RegisterCheckpoint(bind.NewKeyedTransactor(signerKey), cp.SectionIndex, cp.Hash().Bytes(), new(big.Int).Sub(header.Number, big.NewInt(1)), header.ParentHash, [][]byte{sig}); err != nil {
+ if _, err := server.handler.server.oracle.contract.RegisterCheckpoint(bind.NewKeyedTransactor(signerKey), cp.SectionIndex, cp.Hash().Bytes(), new(big.Int).Sub(header.Number, big.NewInt(1)), header.ParentHash, [][]byte{sig}); err != nil {
t.Error("register checkpoint failed", err)
}
server.backend.Commit()
// Wait for the checkpoint registration
for {
- _, hash, _, err := server.pm.reg.contract.Contract().GetLatestCheckpoint(nil)
+ _, hash, _, err := server.handler.server.oracle.contract.Contract().GetLatestCheckpoint(nil)
if err != nil || hash == [32]byte{} {
time.Sleep(100 * time.Millisecond)
continue
@@ -102,8 +102,8 @@ func testCheckpointSyncing(t *testing.T, protocol int, syncMode int) {
}
done := make(chan error)
- client.pm.reg.syncDoneHook = func() {
- header := client.pm.blockchain.CurrentHeader()
+ client.handler.backend.oracle.syncDoneHook = func() {
+ header := client.handler.backend.blockchain.CurrentHeader()
if header.Number.Uint64() == expected {
done <- nil
} else {
@@ -112,7 +112,7 @@ func testCheckpointSyncing(t *testing.T, protocol int, syncMode int) {
}
// Create connected peer pair.
- peer, err1, lPeer, err2 := newTestPeerPair("peer", protocol, server.pm, client.pm)
+ _, err1, _, err2 := newTestPeerPair("peer", protocol, server.handler, client.handler)
select {
case <-time.After(time.Millisecond * 100):
case err := <-err1:
@@ -120,7 +120,6 @@ func testCheckpointSyncing(t *testing.T, protocol int, syncMode int) {
case err := <-err2:
t.Fatalf("peer 2 handshake error: %v", err)
}
- server.rPeer, client.rPeer = peer, lPeer
select {
case err := <-done:
diff --git a/les/helper_test.go b/les/test_helper.go
similarity index 55%
rename from les/helper_test.go
rename to les/test_helper.go
index d66cfa1a5b..2efaa769f8 100644
--- a/les/helper_test.go
+++ b/les/test_helper.go
@@ -23,7 +23,6 @@ import (
"context"
"crypto/rand"
"math/big"
- "sync"
"testing"
"time"
@@ -57,8 +56,8 @@ var (
userAddr1 = crypto.PubkeyToAddress(userKey1.PublicKey)
userAddr2 = crypto.PubkeyToAddress(userKey2.PublicKey)
- testContractCode = common.Hex2Bytes("606060405260cc8060106000396000f360606040526000357c01000000000000000000000000000000000000000000000000000000009004806360cd2685146041578063c16431b914606b57603f565b005b6055600480803590602001909190505060a9565b6040518082815260200191505060405180910390f35b60886004808035906020019091908035906020019091905050608a565b005b80600060005083606481101560025790900160005b50819055505b5050565b6000600060005082606481101560025790900160005b5054905060c7565b91905056")
testContractAddr common.Address
+ testContractCode = common.Hex2Bytes("606060405260cc8060106000396000f360606040526000357c01000000000000000000000000000000000000000000000000000000009004806360cd2685146041578063c16431b914606b57603f565b005b6055600480803590602001909190505060a9565b6040518082815260200191505060405180910390f35b60886004808035906020019091908035906020019091905050608a565b005b80600060005083606481101560025790900160005b50819055505b5050565b6000600060005082606481101560025790900160005b5054905060c7565b91905056")
testContractCodeDeployed = testContractCode[16:]
testContractDeployed = uint64(2)
@@ -77,8 +76,10 @@ var (
// The number of confirmations needed to generate a checkpoint(only used in test).
processConfirms = big.NewInt(4)
- //
- testBufLimit = uint64(1000000)
+ // The token bucket buffer limit for testing purpose.
+ testBufLimit = uint64(1000000)
+
+ // The buffer recharging speed for testing purpose.
testBufRecharge = uint64(1000)
)
@@ -97,8 +98,8 @@ contract test {
}
*/
-// prepareTestchain pre-commits specified number customized blocks into chain.
-func prepareTestchain(n int, backend *backends.SimulatedBackend) {
+// prepare pre-commits specified number customized blocks into chain.
+func prepare(n int, backend *backends.SimulatedBackend) {
var (
ctx = context.Background()
signer = types.HomesteadSigner{}
@@ -164,51 +165,88 @@ func testIndexers(db ethdb.Database, odr light.OdrBackend, config *light.Indexer
return indexers[:]
}
-// newTestProtocolManager creates a new protocol manager for testing purposes,
-// with the given number of blocks already known, potential notification
-// channels for different events and relative chain indexers array.
-func newTestProtocolManager(lightSync bool, blocks int, odr *LesOdr, indexers []*core.ChainIndexer, peers *peerSet, db ethdb.Database, ulcServers []string, ulcFraction int, testCost uint64, clock mclock.Clock) (*ProtocolManager, *backends.SimulatedBackend, error) {
+func newTestClientHandler(backend *backends.SimulatedBackend, odr *LesOdr, indexers []*core.ChainIndexer, db ethdb.Database, peers *peerSet, ulcServers []string, ulcFraction int) *clientHandler {
var (
evmux = new(event.TypeMux)
engine = ethash.NewFaker()
gspec = core.Genesis{
- Config: params.AllEthashProtocolChanges,
- Alloc: core.GenesisAlloc{bankAddr: {Balance: bankFunds}},
+ Config: params.AllEthashProtocolChanges,
+ Alloc: core.GenesisAlloc{bankAddr: {Balance: bankFunds}},
+ GasLimit: 100000000,
}
- pool txPool
- chain BlockChain
- exitCh = make(chan struct{})
+ oracle *checkpointOracle
)
- gspec.MustCommit(db)
- if peers == nil {
- peers = newPeerSet()
+ genesis := gspec.MustCommit(db)
+ chain, _ := light.NewLightChain(odr, gspec.Config, engine, nil)
+ if indexers != nil {
+ checkpointConfig := ¶ms.CheckpointOracleConfig{
+ Address: crypto.CreateAddress(bankAddr, 0),
+ Signers: []common.Address{signerAddr},
+ Threshold: 1,
+ }
+ getLocal := func(index uint64) params.TrustedCheckpoint {
+ chtIndexer := indexers[0]
+ sectionHead := chtIndexer.SectionHead(index)
+ return params.TrustedCheckpoint{
+ SectionIndex: index,
+ SectionHead: sectionHead,
+ CHTRoot: light.GetChtRoot(db, index, sectionHead),
+ BloomRoot: light.GetBloomTrieRoot(db, index, sectionHead),
+ }
+ }
+ oracle = newCheckpointOracle(checkpointConfig, getLocal)
}
- // create a simulation backend and pre-commit several customized block to the database.
- simulation := backends.NewSimulatedBackendWithDatabase(db, gspec.Alloc, 100000000)
- prepareTestchain(blocks, simulation)
-
- // initialize empty chain for light client or pre-committed chain for server.
- if lightSync {
- chain, _ = light.NewLightChain(odr, gspec.Config, engine, nil)
- } else {
- chain = simulation.Blockchain()
- config := core.DefaultTxPoolConfig
- config.Journal = ""
- pool = core.NewTxPool(config, gspec.Config, simulation.Blockchain())
+ client := &LightEthereum{
+ lesCommons: lesCommons{
+ genesis: genesis.Hash(),
+ config: ð.Config{LightPeers: 100, NetworkId: NetworkId},
+ chainConfig: params.AllEthashProtocolChanges,
+ iConfig: light.TestClientIndexerConfig,
+ chainDb: db,
+ oracle: oracle,
+ chainReader: chain,
+ peers: peers,
+ closeCh: make(chan struct{}),
+ },
+ reqDist: odr.retriever.dist,
+ retriever: odr.retriever,
+ odr: odr,
+ engine: engine,
+ blockchain: chain,
+ eventMux: evmux,
}
+ client.handler = newClientHandler(ulcServers, ulcFraction, nil, client)
- // Create contract registrar
- indexConfig := light.TestServerIndexerConfig
- if lightSync {
- indexConfig = light.TestClientIndexerConfig
+ if client.oracle != nil {
+ client.oracle.start(backend)
}
- config := ¶ms.CheckpointOracleConfig{
- Address: crypto.CreateAddress(bankAddr, 0),
- Signers: []common.Address{signerAddr},
- Threshold: 1,
- }
- var reg *checkpointOracle
+ return client.handler
+}
+
+func newTestServerHandler(blocks int, indexers []*core.ChainIndexer, db ethdb.Database, peers *peerSet, clock mclock.Clock) (*serverHandler, *backends.SimulatedBackend) {
+ var (
+ gspec = core.Genesis{
+ Config: params.AllEthashProtocolChanges,
+ Alloc: core.GenesisAlloc{bankAddr: {Balance: bankFunds}},
+ GasLimit: 100000000,
+ }
+ oracle *checkpointOracle
+ )
+ genesis := gspec.MustCommit(db)
+
+ // create a simulation backend and pre-commit several customized block to the database.
+ simulation := backends.NewSimulatedBackendWithDatabase(db, gspec.Alloc, 100000000)
+ prepare(blocks, simulation)
+
+ txpoolConfig := core.DefaultTxPoolConfig
+ txpoolConfig.Journal = ""
+ txpool := core.NewTxPool(txpoolConfig, gspec.Config, simulation.Blockchain())
if indexers != nil {
+ checkpointConfig := ¶ms.CheckpointOracleConfig{
+ Address: crypto.CreateAddress(bankAddr, 0),
+ Signers: []common.Address{signerAddr},
+ Threshold: 1,
+ }
getLocal := func(index uint64) params.TrustedCheckpoint {
chtIndexer := indexers[0]
sectionHead := chtIndexer.SectionHead(index)
@@ -219,72 +257,63 @@ func newTestProtocolManager(lightSync bool, blocks int, odr *LesOdr, indexers []
BloomRoot: light.GetBloomTrieRoot(db, index, sectionHead),
}
}
- reg = newCheckpointOracle(config, getLocal)
- }
- pm, err := NewProtocolManager(gspec.Config, nil, indexConfig, ulcServers, ulcFraction, lightSync, NetworkId, evmux, peers, chain, pool, db, odr, nil, reg, exitCh, new(sync.WaitGroup), func() bool { return true })
- if err != nil {
- return nil, nil, err
+ oracle = newCheckpointOracle(checkpointConfig, getLocal)
}
- // Registrar initialization could failed if checkpoint contract is not specified.
- if pm.reg != nil {
- pm.reg.start(simulation)
- }
- // Set up les server stuff.
- if !lightSync {
- srv := &LesServer{lesCommons: lesCommons{protocolManager: pm, chainDb: db}}
- pm.server = srv
- pm.servingQueue = newServingQueue(int64(time.Millisecond*10), 1)
- pm.servingQueue.setThreads(4)
-
- srv.defParams = flowcontrol.ServerParams{
+ server := &LesServer{
+ lesCommons: lesCommons{
+ genesis: genesis.Hash(),
+ config: ð.Config{LightPeers: 100, NetworkId: NetworkId},
+ chainConfig: params.AllEthashProtocolChanges,
+ iConfig: light.TestServerIndexerConfig,
+ chainDb: db,
+ chainReader: simulation.Blockchain(),
+ oracle: oracle,
+ peers: peers,
+ closeCh: make(chan struct{}),
+ },
+ servingQueue: newServingQueue(int64(time.Millisecond*10), 1),
+ defParams: flowcontrol.ServerParams{
BufLimit: testBufLimit,
MinRecharge: testBufRecharge,
- }
- srv.testCost = testCost
- srv.fcManager = flowcontrol.NewClientManager(nil, clock)
+ },
+ fcManager: flowcontrol.NewClientManager(nil, clock),
}
- pm.Start(1000)
- return pm, simulation, nil
-}
-
-// newTestProtocolManagerMust creates a new protocol manager for testing purposes,
-// with the given number of blocks already known, potential notification channels
-// for different events and relative chain indexers array. In case of an error, the
-// constructor force-fails the test.
-func newTestProtocolManagerMust(t *testing.T, lightSync bool, blocks int, odr *LesOdr, indexers []*core.ChainIndexer, peers *peerSet, db ethdb.Database, ulcServers []string, ulcFraction int) (*ProtocolManager, *backends.SimulatedBackend) {
- pm, backend, err := newTestProtocolManager(lightSync, blocks, odr, indexers, peers, db, ulcServers, ulcFraction, 0, &mclock.System{})
- if err != nil {
- t.Fatalf("Failed to create protocol manager: %v", err)
+ server.costTracker, server.freeCapacity = newCostTracker(db, server.config)
+ server.costTracker.testCostList = testCostList(0) // Disable flow control mechanism.
+ server.handler = newServerHandler(server, simulation.Blockchain(), db, txpool, func() bool { return true })
+ if server.oracle != nil {
+ server.oracle.start(simulation)
}
- return pm, backend
+ server.servingQueue.setThreads(4)
+ server.handler.start()
+ return server.handler, simulation
}
// testPeer is a simulated peer to allow testing direct network calls.
type testPeer struct {
+ peer *peer
+
net p2p.MsgReadWriter // Network layer reader/writer to simulate remote messaging
app *p2p.MsgPipeRW // Application layer reader/writer to simulate the local side
- *peer
}
// newTestPeer creates a new peer registered at the given protocol manager.
-func newTestPeer(t *testing.T, name string, version int, pm *ProtocolManager, shake bool, testCost uint64) (*testPeer, <-chan error) {
+func newTestPeer(t *testing.T, name string, version int, handler *serverHandler, shake bool, testCost uint64) (*testPeer, <-chan error) {
// Create a message pipe to communicate through
app, net := p2p.MsgPipe()
// Generate a random id and create the peer
var id enode.ID
rand.Read(id[:])
-
- peer := pm.newPeer(version, NetworkId, p2p.NewPeer(id, name, nil), net)
+ peer := newPeer(version, NetworkId, false, p2p.NewPeer(id, name, nil), net)
// Start the peer on a new thread
- errc := make(chan error, 1)
+ errCh := make(chan error, 1)
go func() {
select {
- case pm.newPeerCh <- peer:
- errc <- pm.handle(peer)
- case <-pm.quitSync:
- errc <- p2p.DiscQuitting
+ case <-handler.closeCh:
+ errCh <- p2p.DiscQuitting
+ case errCh <- handler.handle(peer):
}
}()
tp := &testPeer{
@@ -294,17 +323,27 @@ func newTestPeer(t *testing.T, name string, version int, pm *ProtocolManager, sh
}
// Execute any implicitly requested handshakes and return
if shake {
+ // Customize the cost table if required.
+ if testCost != 0 {
+ handler.server.costTracker.testCostList = testCostList(testCost)
+ }
var (
- genesis = pm.blockchain.Genesis()
- head = pm.blockchain.CurrentHeader()
- td = pm.blockchain.GetTd(head.Hash(), head.Number.Uint64())
+ genesis = handler.blockchain.Genesis()
+ head = handler.blockchain.CurrentHeader()
+ td = handler.blockchain.GetTd(head.Hash(), head.Number.Uint64())
)
- tp.handshake(t, td, head.Hash(), head.Number.Uint64(), genesis.Hash(), testCost)
+ tp.handshake(t, td, head.Hash(), head.Number.Uint64(), genesis.Hash(), testCostList(testCost))
}
- return tp, errc
+ return tp, errCh
+}
+
+// close terminates the local side of the peer, notifying the remote protocol
+// manager of termination.
+func (p *testPeer) close() {
+ p.app.Close()
}
-func newTestPeerPair(name string, version int, pm, pm2 *ProtocolManager) (*peer, <-chan error, *peer, <-chan error) {
+func newTestPeerPair(name string, version int, server *serverHandler, client *clientHandler) (*testPeer, <-chan error, *testPeer, <-chan error) {
// Create a message pipe to communicate through
app, net := p2p.MsgPipe()
@@ -312,36 +351,34 @@ func newTestPeerPair(name string, version int, pm, pm2 *ProtocolManager) (*peer,
var id enode.ID
rand.Read(id[:])
- peer := pm.newPeer(version, NetworkId, p2p.NewPeer(id, name, nil), net)
- peer2 := pm2.newPeer(version, NetworkId, p2p.NewPeer(id, name, nil), app)
+ peer1 := newPeer(version, NetworkId, false, p2p.NewPeer(id, name, nil), net)
+ peer2 := newPeer(version, NetworkId, false, p2p.NewPeer(id, name, nil), app)
// Start the peer on a new thread
- errc := make(chan error, 1)
+ errc1 := make(chan error, 1)
errc2 := make(chan error, 1)
go func() {
select {
- case pm.newPeerCh <- peer:
- errc <- pm.handle(peer)
- case <-pm.quitSync:
- errc <- p2p.DiscQuitting
+ case <-server.closeCh:
+ errc1 <- p2p.DiscQuitting
+ case errc1 <- server.handle(peer1):
}
}()
go func() {
select {
- case pm2.newPeerCh <- peer2:
- errc2 <- pm2.handle(peer2)
- case <-pm2.quitSync:
- errc2 <- p2p.DiscQuitting
+ case <-client.closeCh:
+ errc1 <- p2p.DiscQuitting
+ case errc1 <- client.handle(peer2):
}
}()
- return peer, errc, peer2, errc2
+ return &testPeer{peer: peer1, net: net, app: app}, errc1, &testPeer{peer: peer2, net: app, app: net}, errc2
}
// handshake simulates a trivial handshake that expects the same state from the
// remote side as we are simulating locally.
-func (p *testPeer) handshake(t *testing.T, td *big.Int, head common.Hash, headNum uint64, genesis common.Hash, testCost uint64) {
+func (p *testPeer) handshake(t *testing.T, td *big.Int, head common.Hash, headNum uint64, genesis common.Hash, costList RequestCostList) {
var expList keyValueList
- expList = expList.add("protocolVersion", uint64(p.version))
+ expList = expList.add("protocolVersion", uint64(p.peer.version))
expList = expList.add("networkId", uint64(NetworkId))
expList = expList.add("headTd", td)
expList = expList.add("headHash", head)
@@ -356,7 +393,7 @@ func (p *testPeer) handshake(t *testing.T, td *big.Int, head common.Hash, headNu
expList = expList.add("txRelay", nil)
expList = expList.add("flowControl/BL", testBufLimit)
expList = expList.add("flowControl/MRR", testBufRecharge)
- expList = expList.add("flowControl/MRC", testCostList(testCost))
+ expList = expList.add("flowControl/MRC", costList)
if err := p2p.ExpectMsg(p.app, StatusMsg, expList); err != nil {
t.Fatalf("status recv: %v", err)
@@ -364,113 +401,119 @@ func (p *testPeer) handshake(t *testing.T, td *big.Int, head common.Hash, headNu
if err := p2p.Send(p.app, StatusMsg, sendList); err != nil {
t.Fatalf("status send: %v", err)
}
-
- p.fcParams = flowcontrol.ServerParams{
+ p.peer.fcParams = flowcontrol.ServerParams{
BufLimit: testBufLimit,
MinRecharge: testBufRecharge,
}
}
-// close terminates the local side of the peer, notifying the remote protocol
-// manager of termination.
-func (p *testPeer) close() {
- p.app.Close()
-}
+type indexerCallback func(*core.ChainIndexer, *core.ChainIndexer, *core.ChainIndexer)
-// TestEntity represents a network entity for testing with necessary auxiliary fields.
-type TestEntity struct {
+// testClient represents a client for testing with necessary auxiliary fields.
+type testClient struct {
+ clock mclock.Clock
db ethdb.Database
- rPeer *peer
- tPeer *testPeer
- peers *peerSet
- pm *ProtocolManager
+ peer *testPeer
+ handler *clientHandler
+
+ chtIndexer *core.ChainIndexer
+ bloomIndexer *core.ChainIndexer
+ bloomTrieIndexer *core.ChainIndexer
+}
+
+// testServer represents a server for testing with necessary auxiliary fields.
+type testServer struct {
+ clock mclock.Clock
backend *backends.SimulatedBackend
+ db ethdb.Database
+ peer *testPeer
+ handler *serverHandler
- // Indexers
chtIndexer *core.ChainIndexer
bloomIndexer *core.ChainIndexer
bloomTrieIndexer *core.ChainIndexer
}
-// newServerEnv creates a server testing environment with a connected test peer for testing purpose.
-func newServerEnv(t *testing.T, blocks int, protocol int, waitIndexers func(*core.ChainIndexer, *core.ChainIndexer, *core.ChainIndexer)) (*TestEntity, func()) {
+func newServerEnv(t *testing.T, blocks int, protocol int, callback indexerCallback, simClock bool, newPeer bool, testCost uint64) (*testServer, func()) {
db := rawdb.NewMemoryDatabase()
indexers := testIndexers(db, nil, light.TestServerIndexerConfig)
- pm, b := newTestProtocolManagerMust(t, false, blocks, nil, indexers, nil, db, nil, 0)
- peer, _ := newTestPeer(t, "peer", protocol, pm, true, 0)
+ var clock mclock.Clock = &mclock.System{}
+ if simClock {
+ clock = &mclock.Simulated{}
+ }
+ handler, b := newTestServerHandler(blocks, indexers, db, newPeerSet(), clock)
+
+ var peer *testPeer
+ if newPeer {
+ peer, _ = newTestPeer(t, "peer", protocol, handler, true, testCost)
+ }
cIndexer, bIndexer, btIndexer := indexers[0], indexers[1], indexers[2]
- cIndexer.Start(pm.blockchain.(*core.BlockChain))
- bIndexer.Start(pm.blockchain.(*core.BlockChain))
+ cIndexer.Start(handler.blockchain)
+ bIndexer.Start(handler.blockchain)
// Wait until indexers generate enough index data.
- if waitIndexers != nil {
- waitIndexers(cIndexer, bIndexer, btIndexer)
+ if callback != nil {
+ callback(cIndexer, bIndexer, btIndexer)
}
-
- return &TestEntity{
- db: db,
- tPeer: peer,
- pm: pm,
- backend: b,
- chtIndexer: cIndexer,
- bloomIndexer: bIndexer,
- bloomTrieIndexer: btIndexer,
- }, func() {
+ server := &testServer{
+ clock: clock,
+ backend: b,
+ db: db,
+ peer: peer,
+ handler: handler,
+ chtIndexer: cIndexer,
+ bloomIndexer: bIndexer,
+ bloomTrieIndexer: btIndexer,
+ }
+ teardown := func() {
+ if newPeer {
peer.close()
- // Note bloom trie indexer will be closed by it parent recursively.
- cIndexer.Close()
- bIndexer.Close()
b.Close()
}
+ cIndexer.Close()
+ bIndexer.Close()
+ }
+ return server, teardown
}
-// newClientServerEnv creates a client/server arch environment with a connected les server and light client pair
-// for testing purpose.
-func newClientServerEnv(t *testing.T, blocks int, protocol int, waitIndexers func(*core.ChainIndexer, *core.ChainIndexer, *core.ChainIndexer), newPeer bool) (*TestEntity, *TestEntity, func()) {
- db, ldb := rawdb.NewMemoryDatabase(), rawdb.NewMemoryDatabase()
- peers, lPeers := newPeerSet(), newPeerSet()
+func newClientServerEnv(t *testing.T, blocks int, protocol int, callback indexerCallback, ulcServers []string, ulcFraction int, simClock bool, connect bool) (*testServer, *testClient, func()) {
+ sdb, cdb := rawdb.NewMemoryDatabase(), rawdb.NewMemoryDatabase()
+ speers, cPeers := newPeerSet(), newPeerSet()
- dist := newRequestDistributor(lPeers, make(chan struct{}), &mclock.System{})
- rm := newRetrieveManager(lPeers, dist, nil)
- odr := NewLesOdr(ldb, light.TestClientIndexerConfig, rm)
+ var clock mclock.Clock = &mclock.System{}
+ if simClock {
+ clock = &mclock.Simulated{}
+ }
+ dist := newRequestDistributor(cPeers, clock)
+ rm := newRetrieveManager(cPeers, dist, nil)
+ odr := NewLesOdr(cdb, light.TestClientIndexerConfig, rm)
- indexers := testIndexers(db, nil, light.TestServerIndexerConfig)
- lIndexers := testIndexers(ldb, odr, light.TestClientIndexerConfig)
+ sindexers := testIndexers(sdb, nil, light.TestServerIndexerConfig)
+ cIndexers := testIndexers(cdb, odr, light.TestClientIndexerConfig)
- cIndexer, bIndexer, btIndexer := indexers[0], indexers[1], indexers[2]
- lcIndexer, lbIndexer, lbtIndexer := lIndexers[0], lIndexers[1], lIndexers[2]
+ scIndexer, sbIndexer, sbtIndexer := sindexers[0], sindexers[1], sindexers[2]
+ ccIndexer, cbIndexer, cbtIndexer := cIndexers[0], cIndexers[1], cIndexers[2]
+ odr.SetIndexers(ccIndexer, cbIndexer, cbtIndexer)
- odr.SetIndexers(lcIndexer, lbtIndexer, lbIndexer)
+ server, b := newTestServerHandler(blocks, sindexers, sdb, speers, clock)
+ client := newTestClientHandler(b, odr, cIndexers, cdb, cPeers, ulcServers, ulcFraction)
- pm, b := newTestProtocolManagerMust(t, false, blocks, nil, indexers, peers, db, nil, 0)
- lpm, lb := newTestProtocolManagerMust(t, true, 0, odr, lIndexers, lPeers, ldb, nil, 0)
+ scIndexer.Start(server.blockchain)
+ sbIndexer.Start(server.blockchain)
+ ccIndexer.Start(client.backend.blockchain)
+ cbIndexer.Start(client.backend.blockchain)
- startIndexers := func(clientMode bool, pm *ProtocolManager) {
- if clientMode {
- lcIndexer.Start(pm.blockchain.(*light.LightChain))
- lbIndexer.Start(pm.blockchain.(*light.LightChain))
- } else {
- cIndexer.Start(pm.blockchain.(*core.BlockChain))
- bIndexer.Start(pm.blockchain.(*core.BlockChain))
- }
+ if callback != nil {
+ callback(scIndexer, sbIndexer, sbtIndexer)
}
-
- startIndexers(false, pm)
- startIndexers(true, lpm)
-
- // Execute wait until function if it is specified.
- if waitIndexers != nil {
- waitIndexers(cIndexer, bIndexer, btIndexer)
- }
-
var (
- peer, lPeer *peer
- err1, err2 <-chan error
+ speer, cpeer *testPeer
+ err1, err2 <-chan error
)
- if newPeer {
- peer, err1, lPeer, err2 = newTestPeerPair("peer", protocol, pm, lpm)
+ if connect {
+ cpeer, err1, speer, err2 = newTestPeerPair("peer", protocol, server, client)
select {
case <-time.After(time.Millisecond * 100):
case err := <-err1:
@@ -479,32 +522,35 @@ func newClientServerEnv(t *testing.T, blocks int, protocol int, waitIndexers fun
t.Fatalf("peer 2 handshake error: %v", err)
}
}
-
- return &TestEntity{
- db: db,
- pm: pm,
- rPeer: peer,
- peers: peers,
- backend: b,
- chtIndexer: cIndexer,
- bloomIndexer: bIndexer,
- bloomTrieIndexer: btIndexer,
- }, &TestEntity{
- db: ldb,
- pm: lpm,
- rPeer: lPeer,
- peers: lPeers,
- backend: lb,
- chtIndexer: lcIndexer,
- bloomIndexer: lbIndexer,
- bloomTrieIndexer: lbtIndexer,
- }, func() {
- // Note bloom trie indexers will be closed by their parents recursively.
- cIndexer.Close()
- bIndexer.Close()
- lcIndexer.Close()
- lbIndexer.Close()
- b.Close()
- lb.Close()
+ s := &testServer{
+ clock: clock,
+ backend: b,
+ db: sdb,
+ peer: cpeer,
+ handler: server,
+ chtIndexer: scIndexer,
+ bloomIndexer: sbIndexer,
+ bloomTrieIndexer: sbtIndexer,
+ }
+ c := &testClient{
+ clock: clock,
+ db: cdb,
+ peer: speer,
+ handler: client,
+ chtIndexer: ccIndexer,
+ bloomIndexer: cbIndexer,
+ bloomTrieIndexer: cbtIndexer,
+ }
+ teardown := func() {
+ if connect {
+ speer.close()
+ cpeer.close()
}
+ ccIndexer.Close()
+ cbIndexer.Close()
+ scIndexer.Close()
+ sbIndexer.Close()
+ b.Close()
+ }
+ return s, c, teardown
}
diff --git a/les/ulc_test.go b/les/ulc_test.go
index 7e9f0b6dbe..9112bf928c 100644
--- a/les/ulc_test.go
+++ b/les/ulc_test.go
@@ -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)
-
- if reflect.DeepEqual(f.PM.blockchain.CurrentHeader().Hash(), l.PM.blockchain.CurrentHeader().Hash()) {
- t.Fatal("blocks are equal")
- }
- _, _, 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()
-
- if !reflect.DeepEqual(f.PM.blockchain.CurrentHeader().Hash(), l.PM.blockchain.CurrentHeader().Hash()) {
- t.Fatal("sync doesn't work")
- }
-}
-
-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)
+func TestULCAnnounceThresholdLes2(t *testing.T) { testULCAnnounceThreshold(t, 2) }
+func TestULCAnnounceThresholdLes3(t *testing.T) { testULCAnnounceThreshold(t, 3) }
+
+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},
+ }
+ 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)
+
+ 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)
- 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()
+ // 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)
+ }
- if !reflect.DeepEqual(f1.PM.blockchain.CurrentHeader().Hash(), l.PM.blockchain.CurrentHeader().Hash()) {
- t.Fatal("Incorrect hash")
+ // Release all servers and client resources.
+ teardown()
+ for i := 0; i < len(teardowns); i++ {
+ teardowns[i]()
+ }
}
}
-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
}
diff --git a/light/odr_util.go b/light/odr_util.go
index 82e33bb78f..2c820d40c7 100644
--- a/light/odr_util.go
+++ b/light/odr_util.go
@@ -60,7 +60,7 @@ func GetHeaderByNumber(ctx context.Context, odr OdrBackend, number uint64) (*typ
}
}
if number >= chtCount*odr.IndexerConfig().ChtSize {
- return nil, ErrNoTrustedCht
+ return nil, errNoTrustedCht
}
r := &ChtRequest{ChtRoot: GetChtRoot(db, chtCount-1, sectionHead), ChtNum: chtCount - 1, BlockNum: number, Config: odr.IndexerConfig()}
if err := odr.Retrieve(ctx, r); err != nil {
@@ -124,7 +124,7 @@ func GetBlock(ctx context.Context, odr OdrBackend, hash common.Hash, number uint
// Retrieve the block header and body contents
header := rawdb.ReadHeader(odr.Database(), hash, number)
if header == nil {
- return nil, ErrNoHeader
+ return nil, errNoHeader
}
body, err := GetBody(ctx, odr, hash, number)
if err != nil {
@@ -241,7 +241,7 @@ func GetBloomBits(ctx context.Context, odr OdrBackend, bitIdx uint, sectionIdxLi
} else {
// TODO(rjl493456442) Convert sectionIndex to BloomTrie relative index
if sectionIdx >= bloomTrieCount {
- return nil, ErrNoTrustedBloomTrie
+ return nil, errNoTrustedBloomTrie
}
reqList = append(reqList, sectionIdx)
reqIdx = append(reqIdx, i)
diff --git a/light/postprocess.go b/light/postprocess.go
index bf632a4496..083dcfceb2 100644
--- a/light/postprocess.go
+++ b/light/postprocess.go
@@ -98,9 +98,9 @@ var (
)
var (
- ErrNoTrustedCht = errors.New("no trusted canonical hash trie")
- ErrNoTrustedBloomTrie = errors.New("no trusted bloom trie")
- ErrNoHeader = errors.New("header not found")
+ errNoTrustedCht = errors.New("no trusted canonical hash trie")
+ errNoTrustedBloomTrie = errors.New("no trusted bloom trie")
+ errNoHeader = errors.New("header not found")
chtPrefix = []byte("chtRootV2-") // chtPrefix + chtNum (uint64 big endian) -> trie root hash
ChtTablePrefix = "cht-"
)
--
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